WO2022249848A1 - User device and base station - Google Patents
User device and base station Download PDFInfo
- Publication number
- WO2022249848A1 WO2022249848A1 PCT/JP2022/019145 JP2022019145W WO2022249848A1 WO 2022249848 A1 WO2022249848 A1 WO 2022249848A1 JP 2022019145 W JP2022019145 W JP 2022019145W WO 2022249848 A1 WO2022249848 A1 WO 2022249848A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base station
- cooperative
- information
- user equipment
- data
- Prior art date
Links
- 238000004891 communication Methods 0.000 claims abstract description 249
- 230000005540 biological transmission Effects 0.000 claims description 362
- 238000013468 resource allocation Methods 0.000 claims description 89
- 230000004048 modification Effects 0.000 description 36
- 238000012986 modification Methods 0.000 description 36
- 238000000034 method Methods 0.000 description 24
- 238000010586 diagram Methods 0.000 description 23
- 230000006870 function Effects 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
Definitions
- the present disclosure relates to user equipment and base stations.
- a mobile communication technology has been proposed in the 3GPP (3rd Generation Partnership Project) and standardized as a Technical Specification (TS). Especially now, 5G (5th Generation) technology has been proposed and standardized.
- a base station allocates UL resources to multiple UEs that have received SRS, and the multiple UEs transmit data to the base station using the UL resources.
- the base station assigns UL resources that are not used for transmitting the data to the UE. may be assigned to In other words, UEs that are not capable of cooperative data transmission may be assigned UL resources.
- a user equipment (100) is two or more user equipments capable of transmitting or receiving data in direct communication, which are capable of cooperatively transmitting said data to a base station (300).
- a base station (300) is two or more user equipments (100) capable of transmitting or receiving data in direct communication, and capable of cooperatively transmitting said data to said base station.
- a communication processing unit (343) that receives control information including user device information indicating the two or more user devices from the user device; and an information acquisition unit (341) that acquires the user device information included in the control information. , provided.
- FIG. 1 is a diagram illustrating an example of a schematic configuration of a system according to a first embodiment of the present disclosure
- FIG. 2 is a block diagram showing an example of a schematic functional configuration of a user device according to the first embodiment of the present disclosure
- FIG. 2 is a block diagram showing an example of a schematic hardware configuration of a user device according to the first embodiment of the present disclosure
- FIG. 2 is a block diagram showing an example of a schematic functional configuration of a base station according to the first embodiment of the present disclosure
- FIG. 1 is a block diagram showing an example of a schematic hardware configuration of a base station according to the first embodiment of the present disclosure
- FIG. FIG. 4 is a sequence diagram for explaining an example of a schematic flow of processing according to the first embodiment of the present disclosure
- FIG. 4 is a sequence diagram for explaining an example of resource allocation according to the first embodiment of the present disclosure
- FIG. FIG. 11 is a sequence diagram for explaining an example of a schematic flow of processing according to a modification of the first embodiment of the present disclosure
- FIG. 10 is a diagram showing an example of a schematic configuration of a system according to a second embodiment of the present disclosure
- FIG. 11 is a sequence diagram for explaining an example of a schematic flow of processing according to the second embodiment of the present disclosure
- FIG. 12 is a sequence diagram for explaining an example of resource allocation according to the second embodiment of the present disclosure
- FIG. FIG. 11 is a sequence diagram for explaining an example of a schematic flow of processing according to a modification of the second embodiment of the present disclosure
- FIG. 11 is a diagram showing an example of a schematic configuration of a system according to a third embodiment of the present disclosure
- FIG. FIG. 12 is a sequence diagram for explaining an example of a schematic flow of processing according to the third embodiment of the present disclosure
- FIG. 12 is a sequence diagram for explaining an example of resource allocation according to the third embodiment of the present disclosure
- FIG. FIG. 5 is a diagram for explaining application example 1 according to each embodiment of the present disclosure
- FIG. 5 is a diagram for explaining application example 1 according to each embodiment of the present disclosure
- FIG. 5 is a diagram for explaining application example 1 according to each embodiment of the present disclosure
- FIG. 11 is a diagram for explaining an application example 2 according to each embodiment of the present disclosure
- FIG. 11 is a diagram for explaining an application example 2 according to each embodiment of the present disclosure
- FIG. 11 is a diagram for explaining an application example 2 according to each embodiment of the present disclosure
- FIG. 11 is a diagram for explaining an application example 2 according to each embodiment of the present disclosure
- First Embodiment 1-1 System configuration 1-2. Configuration of user device 1-3. Configuration of base station 1-4. Operation example 1-5. Modification 2. Second Embodiment 2-1. System configuration 2-2. Operation example 2-3. Modification 3. Third Embodiment 3-1. System configuration 3-2. Operation example 3-3. Modification 4. Application example 4-1. Application example 1 4-2. Application example 2
- First Embodiment> A first embodiment of the present disclosure will be described. In this embodiment, multiple UEs cooperatively transmit data to the base station.
- system 1 includes UE 100 (UE 100A and UE 100B), UE 200 and base station 300 .
- system 1 is a system that complies with the Technical Specifications (TS) of 3GPP (Third Generation Partnership Project). More specifically, for example, the system 1 is a system conforming to 5G or NR (New Radio) TS. Naturally, the system 1 is not limited to this example.
- TS Technical Specifications
- 3GPP Third Generation Partnership Project
- NR New Radio
- Base station 300 is a node of a radio access network (RAN) and communicates with UEs (eg, UE 100 or UE 200) located within the coverage area of base station 300.
- RAN radio access network
- the base station 300 communicates with the UE (eg, UE100 or UE200) using the RAN protocol stack.
- the protocol stack includes RRC (Radio Resource Control), SDAP (Service Data Adaptation Protocol), PDCP (Packet Data Convergence Protocol), RLC (Radio Link Control), MAC (Medium Access Control), and Physical: PHY) layer protocol.
- the protocol stack may not include all of these protocols, but some of these protocols.
- the base station 300 is a gNB.
- a gNB is a node that provides NR user plane and control plane protocol terminations towards the UE and is connected to the 5GC (5G Core Network) via the NG interface.
- base station 300 may be an en-gNB.
- An en-gNB is a node that provides NR user plane and control plane protocol termination for UEs and acts as a secondary node in EN-DC (E-UTRA-NR Dual Connectivity).
- the base station 300 may include multiple nodes.
- the plurality of nodes may include a first node that hosts a higher layer included in the protocol stack and a second node that hosts a lower layer included in the protocol stack. good.
- the upper layers may include an RRC layer, an SDAP layer and a PDCP layer, and the lower layers may include an RLC layer, a MAC layer and a PHY layer.
- the first node may be a CU (central unit), and the second node may be a DU (Distributed Unit).
- the plurality of nodes may include a third node that performs lower-level processing of the PHY layer, and the second node may perform higher-level processing of the PHY layer.
- the third node may be an RU (Radio Unit).
- the base station 300 may be one of the plurality of nodes, or may be connected to another unit of the plurality of nodes.
- the base station 300 may be an IAB (Integrated Access and Backhaul) donor or an IAB node.
- IAB Integrated Access and Backhaul
- Each of UE 100 and UE 200 receives signals from base station 300 on the downlink and transmits signals to base station 300 on the uplink. In other words, each of UE100 and UE200 communicates with base station 300 via the Uu interface.
- each of UE100 and UE200 communicates with base station 300 using the above protocol stack.
- each of UE100 and UE200 communicates with other UEs using the above protocol stack.
- each of UE100 and UE200 communicates directly with another UE without going through base station 300. Specifically, each of UE100 and UE200 communicates with other UEs on sidelinks. In other words, each of UE100 and UE200 communicates with other UEs via the PC5 interface.
- direct communication refers to communication through a route that does not go through the base station 300, and includes communication through a single link and communication through a route consisting of multiple links.
- a communication path consisting of a plurality of links is provided, for example, by relaying communications by a third UE 100 capable of communicating with both the first UE 100 and the second UE 100 via a single link. Such communication via relay by the third UE 100 is generally called multi-hop communication.
- the UE 100 (eg, UE 100A) operates in sidelink resource allocation mode 2. That is, the UE 100A selects a radio resource within the sidelink resource pool, and uses the selected radio resource to transmit a signal on the sidelink. For example, UE 100A transmits a signal to other UE 100 (for example, UE 100B) on the sidelink.
- each of UE100 and UE200 may directly communicate with another UE using a communication scheme different from the sidelink.
- each of the UE 100 and UE 200 uses a wireless LAN (Local Area Network) such as Wi-Fi (registered trademark) or a wireless PAN (Personal Area Network) such as Bluetooth (registered trademark) or Zigbee (registered trademark). It may communicate with other UEs. Even when these communication schemes are used, each of UE100 and UE200 may communicate with other UEs using multi-hop communication including relay.
- a wireless LAN Local Area Network
- Wi-Fi registered trademark
- PAN Personal Area Network
- Bluetooth registered trademark
- Zigbee registered trademark
- the UE 100 includes a wireless communication unit 110, a storage unit 120 and a processing unit .
- the wireless communication unit 110 wirelessly transmits and receives signals.
- the wireless communication unit 110 receives signals from base stations and transmits signals to the base stations.
- the radio communication unit 110 receives signals from other UEs and transmits signals to other UEs.
- the storage unit 120 stores various information.
- the processing unit 130 provides various functions of the UE 100.
- the processing unit 130 includes an information acquisition unit 131 and a communication processing unit 133 .
- the processing unit 130 may further include components other than these components. That is, the processing unit 130 can perform operations other than those of these components. Specific operations of the information acquisition unit 131 and the communication processing unit 133 will be described later in detail.
- the processing unit 130 communicates with the base station (eg, base station 300) or another UE (eg, UE 200) via the wireless communication unit 110.
- the base station eg, base station 300
- another UE eg, UE 200
- UE 100 comprises antenna 181 , RF (radio frequency) circuitry 183 , processor 185 , memory 187 and storage 189 .
- RF radio frequency
- Antenna 181 converts a signal into radio waves and radiates the radio waves into space. Also, the antenna 181 receives radio waves in space and converts the radio waves into signals.
- Antenna 181 may include a transmit antenna and a receive antenna, or may be a single antenna for transmission and reception.
- Antenna 181 may be a directional antenna and may include multiple antenna elements.
- the RF circuit 183 performs analog processing of signals transmitted and received via the antenna 181 .
- RF circuitry 183 may include high frequency filters, amplifiers, modulators, low pass filters, and the like.
- the processor 185 performs digital processing of signals transmitted and received via the antenna 181 and the RF circuit 183.
- the digital processing includes processing of the protocol stack of the RAN.
- Processor 185 may include multiple processors or may be a single processor.
- the multiple processors may include a baseband processor that performs the digital processing and one or more processors that perform other processing.
- the memory 187 stores programs executed by the processor 185, parameters related to the programs, and data related to the programs.
- the memory 187 may include at least one of ROM (Read Only Memory), EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), RAM (Random Access Memory), and flash memory. All or part of memory 187 may be included within processor 185 .
- the storage 189 stores various information.
- the storage 189 may include at least one of SSD (Solid State Drive) and HDD (Hard Disc Drive).
- the wireless communication unit 110 may be implemented by an antenna 181 and an RF circuit 183.
- Storage unit 120 may be implemented by storage 189 .
- Processing unit 130 may be implemented by processor 185 and memory 187 .
- the processing unit 130 may be implemented by an SoC (System on Chip) including a processor 185 and a memory 187.
- SoC System on Chip
- the SoC may include RF circuitry 183 and the wireless communication unit 110 may also be implemented by the SoC.
- the UE 100 may include a memory that stores the program (ie, memory 187) and one or more processors that can execute the program (ie, processor 185).
- One or more processors may execute the programs described above to perform the operations of the processing unit 130 .
- the program may be a program for causing the processor to execute the operation of the processing unit 130 .
- the base station 300 includes a wireless communication unit 310, a network communication unit 320, a storage unit 330 and a processing unit 340.
- FIG. 4 An example of the functional configuration of the base station 300 according to the first embodiment of the present disclosure will be described with reference to FIG. Referring to FIG. 4, the base station 300 includes a wireless communication unit 310, a network communication unit 320, a storage unit 330 and a processing unit 340.
- the wireless communication unit 310 wirelessly transmits and receives signals.
- the radio communication unit 310 receives signals from UEs and transmits signals to UEs.
- the network communication unit 320 receives signals from the network and transmits signals to the network.
- the storage unit 330 stores various information for the base station 300.
- the processing unit 340 provides various functions of the base station 300.
- the processing unit 340 includes an information acquisition unit 341 , a first communication processing unit 343 and a second communication processing unit 345 .
- the processing unit 340 may further include other components other than these components. That is, the processing unit 340 may perform operations other than those of these components. Specific operations of the information acquisition unit 341, the first communication processing unit 343, and the second communication processing unit 345 will be described in detail later.
- the processing unit 340 (first communication processing unit 343) communicates with the UE (eg, UE100 or UE200) via the wireless communication unit 310.
- the processing unit 340 (second communication processing unit 345) communicates with other nodes (for example, network nodes in the core network or other base stations) via the network communication unit 320.
- FIG. 343 first communication processing unit 343 communicates with the UE (eg, UE100 or UE200) via the wireless communication unit 310.
- the processing unit 340 (second communication processing unit 345) communicates with other nodes (for example, network nodes in the core network or other base stations) via the network communication unit 320.
- base station 300 comprises antenna 381 , RF circuitry 383 , network interface 385 , processor 387 , memory 389 and storage 391 .
- the antenna 381 converts the signal into radio waves and radiates the radio waves into space. Also, the antenna 381 receives radio waves in space and converts the radio waves into signals.
- Antenna 381 may include a transmit antenna and a receive antenna, or may be a single antenna for transmission and reception. Antenna 381 may be a directional antenna and may include multiple antenna elements.
- the RF circuit 383 performs analog processing of signals transmitted and received via the antenna 381 .
- RF circuitry 383 may include high frequency filters, amplifiers, modulators, low pass filters, and the like.
- the network interface 385 is, for example, a network adapter, which transmits signals to and receives signals from the network.
- the processor 387 performs digital processing of signals transmitted and received via the antenna 381 and the RF circuit 383.
- the digital processing includes processing of the protocol stack of the RAN.
- Processor 387 also processes signals sent and received via network interface 385 .
- Processor 387 may include multiple processors or may be a single processor.
- the multiple processors may include a baseband processor that performs the digital processing and one or more processors that perform other processing.
- the memory 389 stores programs executed by the processor 387, parameters related to the programs, and data related to the programs.
- Memory 389 may include at least one of ROM, EPROM, EEPROM, RAM and flash memory. All or part of memory 389 may be included within processor 387 .
- the storage 391 stores various information.
- the storage 391 may include at least one of SSD and HDD.
- the wireless communication unit 310 may be implemented by an antenna 381 and an RF circuit 383.
- Network communication unit 320 may be implemented by network interface 385 .
- Storage unit 330 may be implemented by storage 391 .
- Processing unit 340 may be implemented by processor 387 and memory 389
- Part or all of the processing unit 340 may be virtualized. In other words, part or all of the processing unit 340 may be implemented as a virtual machine. In this case, part or all of the processing unit 340 may operate as a virtual machine on a physical machine (that is, hardware) including a processor, memory, etc. and a hypervisor.
- a physical machine that is, hardware
- the base station 300 may include a memory (ie, memory 389) for storing programs and one or more processors (ie, processor 387) capable of executing the programs.
- the one or more processors may execute the program to perform the operation of the processing unit 340 .
- the program may be a program for causing the processor to execute the operation of the processing unit 340 .
- the UE 100 may act as a transmitting UE, a representative UE, a coordinating UE, or any two or all of them.
- Operation of transmitting UE UE 100 (also called transmitting UE 100) operating as a transmitting UE transmits cooperative transmission data to be transmitted to base station 300 to UE 100 operating as a cooperative UE (also called cooperative UE 100). . Also, the transmitting UE 100 acquires a list of cooperative UEs 100 (also referred to as a cooperative UE list) as user equipment information.
- a coordinated UE list is two or more UEs 100 capable of transmitting or receiving coordinated transmission data in direct communication, and two or more UEs 100 capable of cooperatively transmitting coordinated transmission data to the base station 300.
- UE information indicating a UE 100 ie, two or more cooperating UEs 100.
- the coordinated UE list indicates two or more coordinated UEs 100 to which the transmitting UE 100 can transmit coordinated transmission data.
- the cooperating UE list is a list of identifiers of cooperating UEs 100 .
- Direct communication is sidelink communication.
- the transmitting UE 100 acquires the cooperating UE list using direct communication. Specifically, the transmitting UE 100 acquires a cooperative UE list using control information in sidelink communication. For example, the transmitting UE 100 identifies the cooperative UE 100 capable of sidelink communication using sidelink sensing or the like. Also, the transmitting UE 100 may acquire the cooperative UE list by transmitting and receiving information other than control information in sidelink communication on the sidelink.
- two or more cooperating UEs 100 indicated by the cooperating UE list may belong to a specific group of UEs 100.
- the specific group is a group of UEs 100 with which direct communication is stable.
- a group of UEs 100 with which direct communication is stable is indicated by group information.
- Group information may be stored in the transmitting UE 100 or may be received from other UEs 100 or base stations 300 .
- the group information indicates a group of UEs 100 mounted on mobile objects (for example, vehicles or flying objects such as drones) that move in groups. This makes it possible to more reliably select UE 100 capable of transmitting cooperative transmission data as cooperative UE 100 . In other words, it is possible to prevent the UE 100 whose sidelink communication with the transmitting UE 100 becomes unstable from being selected as the cooperative UE 100 .
- the transmitting UE 100 acquires a cooperative UE list using sidelink communication and group information.
- the transmitting UE 100 acquires a coordinated UE list indicating, as coordinated UEs 100, UEs 100 that can communicate with the transmitting UE 100 via the sidelink and that belong to the group indicated by the group information.
- the group information may be acquired using sidelink communication. Specifically, the group information may be obtained based on the status of sidelink communication. For example, group information indicating the UE 100 that satisfies a predetermined condition such as the usage period or frequency of radio resources in the past sidelink communication may be acquired. That is, the group information indicating the UE 100 whose sidelink communication is estimated to be stable from the state of sidelink communication is acquired. Also, the acquired group information may be transmitted to the base station 300 . Furthermore, the transmitting UE 100 may acquire a list of UEs 100 that can communicate stably via relay by the neighboring UEs 100 from the UEs 100 that can communicate via a single sidelink communication (also referred to as neighboring UEs 100). . UEs 100 in this list may be included in the group information as UEs 100 that are assumed to have stable multihop communication.
- a predetermined condition such as the usage period or frequency of radio resources in the past sidelink communication
- Coordinated transmission data to be transmitted by two or more cooperating UEs 100 indicated by the cooperating UE list is part of the entire coordinated transmission data.
- the transmission allocation information indicates the portion of the entire coordinated transmission data that two or more coordinated UEs 100 should each transmit.
- a first part of the entire cooperative transmission data is transmitted by the cooperative UE 100-1, and a second part different from the first part is transmitted by the cooperative UE 100-2.
- the transmission allocation information indicates the first part as allocation to cooperative UE 100-1 and the second part as allocation to cooperative UE 100-2.
- the transmission quota information may be an identifier for the pattern of allocation and may indicate the amount or percentage of allocation.
- parts of the entire cooperative transmission data to be transmitted by two or more cooperative UEs 100 may overlap.
- the first portion and the second portion may overlap.
- the coordinated transmission data to be transmitted by two or more coordinated UEs 100 may be the entire coordinated transmission data.
- the representative UE 100 may acquire transmission allocation information.
- the transmission allocation information may be determined based on the communication status or processing load of two or more cooperative UEs 100. For example, the transmission allocation information may be based on the amount, duration, frequency, delay or connection stability of two or more cooperating UEs 100 communicating. Transmission allocation information may also be based on the amount of processing, time or delay of two or more cooperating UEs 100 .
- the transmitting UE 100 shares cooperative transmission data with the cooperative UE 100 by direct communication. Specifically, transmitting UE 100 (information acquisition unit 131) acquires a cooperative UE list. The transmitting UE 100 (communication processing unit 133) transmits cooperative transmission data to at least one cooperative UE 100 out of two or more cooperative UEs 100 indicated by the cooperative UE list, via the sidelink. Note that when the transmitting UE 100 also operates as a cooperating UE, the coordinating UE list may separately include information indicating one or more cooperating UEs 100 with which the transmitting UE 100 can communicate on the sidelink and information indicating the transmitting UE 100. That is, the transmitting UE 100 may transmit cooperative transmission data to one or more cooperative UEs 100 .
- the transmitting UE 100 acquires cooperative transmission data within the transmitting UE 100.
- the transmitting UE 100 (communication processing unit 133) transmits the acquired cooperative transmission data to at least one cooperative UE 100 on the sidelink.
- the transmitting UE 100 acquires data stored in the storage unit 120 or data received from an upper layer such as an application running on the transmitting UE 100 .
- the transmitting UE 100 transmits the acquired data to at least one cooperating UE 100 indicated by the cooperating UE list.
- the transmitting UE 100 transmits transmission allocation information to the cooperative UE 100.
- the transmitting UE 100 transmits transmission allocation information to the cooperative UE 100 together with cooperative transmission data.
- the transmission allocation information may be transmitted to the cooperative UE 100 separately from the cooperative transmission data.
- control information including transmission allocation information may be transmitted to the cooperative UE 100 .
- the representative UE 100 transmits a cooperating UE list to the base station 300 as a representative of two or more cooperating UEs 100 .
- the representative UE 100 transmits the coordinated UE list to the base station 300 .
- the representative UE 100 (information acquisition unit 131) acquires a cooperative UE list.
- the representative UE 100 (communication processing unit 133 ) transmits control information including the cooperative UE list to the base station 300 .
- the representative UE 100 (communication processing unit 133) transmits UCI (Uplink Control Information) including a cooperative UE list to the base station 300.
- the representative UE 100 (communication processing unit 133) transmits to the base station 300 a MAC Control Element (MAC Control Element) containing the coordinated UE list or an RRC message.
- UCI Uplink Control Information
- MAC Control Element MAC Control Element
- the cooperative UE 100 receives cooperative transmission data from the transmitting UE 100 and transmits the received cooperative transmission data to the base station 300 in cooperation with other cooperative UEs 100 .
- the cooperative UE 100 receives cooperative transmission data from the transmitting UE 100 by direct communication. Specifically, the cooperative UE 100 (communication processing unit 133) receives the cooperative transmission data from the transmitting UE 100 on the sidelink.
- the cooperative UE 100 receives the transmission allocation information from the transmitting UE 100 by direct communication.
- the cooperative UE 100 (communication processing unit 133) receives control information including transmission allocation information from the transmitting UE 100 on the sidelink.
- the cooperative UE 100 (information acquisition unit 131) acquires transmission allocation information from control information.
- Cooperative UE 100 transmits a reference signal to base station 300 .
- cooperative UE 100 (communication processing unit 133 ) transmits SRS to base station 300 .
- the cooperative UE 100 receives resource allocation information indicating UL resources from the base station 300 .
- the cooperative UE 100 (communication processing unit 133 ) receives control information including resource allocation information from the base station 300 .
- the cooperative UE 100 (information acquisition unit 131) acquires resource allocation information included in control information.
- the cooperative UE 100 receives cooperative precoding for cooperative MIMO from the base station 300 .
- the cooperative UE 100 (communication processing unit 133) receives control information including cooperative precoding from the base station 300.
- FIG. The cooperative UE 100 (information acquisition unit 131) acquires cooperative precoding included in control information. Note that cooperative precoding may be included in control information included in resource allocation information.
- a cooperative UE 100 transmits cooperative transmission data to the base station 300 in cooperation with other cooperative UEs 100 .
- cooperative transmission means sharing and transmitting cooperative transmission data among a plurality of cooperative UEs 100 .
- cooperative transmission may mean sharing cooperative transmission data among a plurality of cooperative UEs 100 and transmitting in the same time, frequency, or space.
- cooperative transmission may mean sharing cooperative transmission data among a plurality of cooperative UEs 100 and transmitting with cooperative MIMO.
- cooperative transmission may mean sharing cooperative transmission data among a plurality of cooperative UEs 100 and transmitting the data to a plurality of base stations.
- the coordinated UE 100 transmits coordinated transmission data to the base station 300 using UL resources indicated by resource allocation information received from the base station 300 .
- cooperative precoding is received from base station 300
- cooperative UE 100 transmits cooperative transmission data to base station 300 using the received cooperative precoding.
- Cooperative MIMO is achieved by transmitting cooperative transmission data using cooperative precoding that is received by two or more cooperative UEs 100 respectively.
- Base station 300 receives the coordinated UE list from representative UE 100 , allocates UL resources to coordinated UE 100 using the coordinated UE list, and receives coordinated transmission data from coordinated UE 100 .
- the base station 300 receives the coordinated UE list from the representative UE 100 .
- the base station 300 (first communication processing unit 343) receives control information including the cooperative UE list from the representative UE 100.
- the base station 300 (information acquisition unit 341) acquires the coordinated UE list included in the control information.
- the acquired cooperative UE list is stored in the storage unit 330 .
- the base station 300 receives the reference signal from the UE 100 .
- the base station 300 (first communication processing unit 343) receives reference signals from two or more cooperating UEs 100 indicated by the cooperating UE list.
- the reference signal is SRS.
- Base station 300 observes the UL channel from the SRS received from cooperative UE 100 .
- the base station 300 discards the information on the UL channel observed from the SRS received from the UE 100 other than the cooperative UE 100, or stores it separately from the information on the UL channel observed from the SRS received from the cooperative UE 100. do.
- Base station 300 transmits resource allocation information indicating UL resources for cooperative transmission to cooperative UE 100 .
- the base station 300 acquires resource allocation information.
- the base station 300 (first communication processing unit 343) transmits control information including resource allocation information to two or more cooperating UEs 100 indicated by the cooperating UE list.
- the base station 300 determines UL resources based on the reference signal received from the cooperative UE 100. For example, the base station 300 allocates UL resources for cooperative transmission to the two or more cooperative UEs 100 based on UL channel information for the two or more cooperative UEs 100 indicated by the cooperative UE list. Control information including resource allocation information indicating allocation of the UL resources is transmitted to the two or more cooperating UEs 100 .
- the base station 300 transmits cooperative precoding for cooperative MIMO to two or more cooperative UEs 100 .
- base station 300 acquires cooperative precoding.
- the base station 300 (first communication processing unit 343 ) transmits control information including cooperative precoding to two or more cooperative UEs 100 .
- the base station 300 determines control information for cooperative MIMO based on the reference signal received from the cooperative UE 100. For example, the base station 300 determines cooperative precoding for cooperative MIMO based on UL channel information for two or more cooperative UEs 100 indicated by the cooperative UE list. Control information including the cooperative precoding is transmitted to the two or more cooperative UEs 100 .
- the base station 300 (first communication processing unit 343) transmits DCI (Downlink Control Information) including resource allocation information and cooperative precoding to two or more cooperative UEs 100.
- DCI Downlink Control Information
- the base station 300 receives coordinated transmission data transmitted in cooperation from two or more coordinated UEs 100 . Specifically, the base station 300 (first communication processing unit 343) receives each piece of coordinated transmission data transmitted using UL resources allocated to two or more coordinated UEs 100, respectively.
- the base station 300 acquires the entire coordinated transmission data based on each received coordinated transmission data. For example, the base station 300 recovers the entire coordinated transmission data based on each received portion of the overall coordinated transmission data. Note that if the received coordinated transmission data is the entire coordinated transmission data, base station 300 may selectively acquire one of the received coordinated transmission data.
- the UE 100A operates as a transmitting UE, a representative UE and a cooperating UE, and the UE 100B operates as a coordinating UE.
- the UE 100A transmits cooperative transmission data and transmission allocation information to the UE 100B (S501). For example, when a transmission request for data to be transmitted to base station 300 by cooperative transmission is generated, UE 100A acquires a cooperative UE list indicating UEs 100 operating as cooperative UEs. Also, the UE 100A acquires transmission allocation information for cooperative transmission data. The UE 100A transmits cooperative transmission data and transmission allocation information to the UE 100B indicated by the acquired cooperative UE list.
- the UE 100A and UE 100B transmit the SRS to the base station 300 (S503).
- UE 100A and UE 100B periodically transmit SRS to base station 300 after receiving the SRS request from base station 300 .
- the SRS transmitted after sharing the cooperative transmission data is used, but the SRS transmitted before that may be used.
- the UE 100A transmits the cooperative UE list to the base station 300 (S505).
- UE 100A transmits to base station 300 a cooperative UE list indicating UE 100B that has shared cooperative transmission data.
- the UE 100 that transmits the coordinated UE list operates as a coordinated UE like the UE 100A in the example of FIG.
- the coordinated UE list indicates UE 100B.
- the source of the coordinated UE list may be included in the coordinated UE list.
- a coordinated UE list may indicate UE 100A and UE 100B.
- the base station 300 transmits resource allocation information and cooperative precoding to the UE 100A and UE 100B operating as cooperative UEs (S507). For example, base station 300 allocates UL resources for coordinated transmission to UE 100A and UE 100B indicated in the coordinated UE list among UEs 100 that have received SRS, using UL channel information observed from SRS. An SRS is also received from UE200, but UE200 is not shown in the cooperative UE list, so base station 300 does not allocate UL resources for cooperative transmission to UE200. Also, base station 300 acquires cooperative precoding for cooperative MIMO by UE 100A and UE 100B. Base station 300 then transmits resource allocation information indicating the allocated UL resources and cooperative precoding to UE 100A and UE 100B.
- the UE 100A and UE 100B transmit cooperative transmission data to the base station 300 based on the received resource allocation information and cooperative precoding (S509). For example, UE 100A and UE 100B transmit cooperative transmission data to base station 300 using the allocated UL resources and cooperative precoding.
- Each block shown in FIG. 7 is a data or resource block.
- the coordinated transmission data is received by the base station 300. Therefore, the block size of cooperative transmission data shown on the left side of FIG. 7 is the same as the block size corresponding to the data received by base station 300 shown in the center of FIG.
- UE 100A and UE 100B are provided with UL resources and cooperative precoding.
- UE 100A and UE 100B are allocated resources for cooperative MIMO using cooperative precoding, resources for UE 100A independent transmission, and resources for UE 100B independent transmission, as shown on the right side of FIG.
- the sizes of the resources allocated to the UE 100A and the UE 100B may correspond to the sizes of the cooperative transmission data to be transmitted by each of the UE 100A and the UE 100B.
- UE 100 transmits a coordinated UE list to base station 300, and base station 300 receives the coordinated UE list. Therefore, it becomes possible to allocate UL resources for cooperative transmission to UE 100 capable of cooperatively transmitting data.
- the UE 100A operates as a transmitting UE
- the UE 100B operates as a representative UE and a cooperating UE
- the UE 100C operates as a coordinating UE. Note that two or more of these modifications may be combined.
- the coordinated UE list is transmitted from the representative UE 100 to the base station 300 .
- the cooperating UE list according to the first embodiment of the present disclosure is not limited to this example.
- the UE 100 operating as the representative UE may transmit to the base station 300 the validity condition of the cooperative UE list.
- the representative UE 100 (information acquisition unit 131) acquires validity condition information regarding the conditions under which the cooperative UE list is valid.
- the representative UE 100 (communication processing unit 133 ) transmits control information including validity condition information to the base station 300 .
- the base station 300 (first communication processing unit 343) receives control information including validity condition information.
- the base station 300 (information acquisition unit 341) acquires valid condition information included in the control information.
- the UE 100B transmits valid condition information to the base station 300 (S555).
- the UE 100B may receive the valid condition information from the UE 100A, or may acquire it within the UE 100B.
- the validity condition information may be included in control information including the cooperative UE list, or may be included in control information different from the control information.
- Communication status Validity condition information may include communication status information regarding the status of transmission or reception of cooperative transmission data using direct communication in two or more cooperative UEs 100 .
- the representative UE 100 acquires communication status information.
- the representative UE 100 (communication processing unit 133 ) transmits control information including communication status information to the base station 300 .
- the base station 300 (first communication processing unit 343) receives control information including communication status information.
- the base station 300 (information acquisition unit 341) acquires communication status information included in control information.
- the communication status information may indicate the progress of transmission or reception of cooperative transmission data using direct communication in two or more cooperative UEs 100 .
- the communication status information indicates the amount or ratio of cooperative transmission data that has been shared from the transmitting UE 100 to the cooperative UE 100 .
- Base station 300 allocates UL resources for cooperative transmission data based on the progress of sharing cooperative transmission data indicated by the communication status information. For example, the base station 300 allocates UL resources up to the amount of cooperative transmission data that has been shared. Also, the base station 300 determines UL resources to be allocated to each cooperative UE 100 according to the proportion of cooperative transmission data for which sharing has been completed. By this means, it is possible to allocate UL resources to UE 100 capable of more reliably transmitting cooperative transmission data in just the right amount.
- the base station 300 may determine that the cooperative UE list is invalid based on the degree of progress of sharing cooperative transmission data indicated by the communication status information. For example, the base station 300 determines that the cooperative UE list is invalid when the degree of progress of sharing cooperative transmission data indicated by the communication status information is equal to or less than a threshold. A cooperative UE list that is determined to be invalid is not used for processes related to cooperative transmission. Information indicating that the cooperative UE list has been determined to be invalid may be transmitted to the representative UE 100 .
- the communication status information may indicate the stability of direct communication between two or more cooperative UEs 100.
- the communication status information indicates the stability of sidelinks between the cooperative UE 100 and the transmitting UE 100 .
- sidelink stability may be determined based on the amount, duration, frequency or delay of communications. This makes it possible to allocate UL resources to UEs 100 capable of sharing and transmitting cooperative transmission data more reliably.
- Validity time Validity condition information may indicate the validity time of the cooperative UE list.
- Base station 300 may determine that the coordinated UE list is invalid based on the valid time. For example, if the base station 300 does not receive the information indicating the extension of the valid time or the updated coordinated UE list from the representative UE 100 before the valid time indicated by the valid condition information elapses, the coordinated UE list is determined to be invalid. do. Note that the coordinated UE list that has not been changed may be transmitted from the representative UE 100 instead of the information indicating the extension of the valid time. By this means, it is possible to suppress allocation of UL resources to the cooperative UE 100 when the situation of the cooperative UE 100 becomes unsuitable for the transmission of cooperative transmission data over time after the transmission of the cooperative UE list.
- the validity condition information indicating the validity period of the cooperative UE list may be included in the control information corresponding to the length of the validity period. For example, if the validity time is relatively long (eg, hundreds of msec), the validity condition information may be included in the RRC message, and if the validity time is relatively short (eg, tens of msec), the validity condition information may be included in the UCI may be included in
- the transmitting UE 100 also operates as a cooperative UE and a representative UE.
- the transmitting UE 100 according to the first embodiment of the present disclosure is not limited to this example.
- the transmitting UE 100 may not operate as a cooperative UE.
- the transmitting UE 100 operates as a transmitting UE and a representative UE.
- the transmitting UE 100 is not shown in the cooperative UE list and does not transmit cooperative transmission data to the base station 300 . Thereby, the amount of communication between the transmitting UE 100 and the base station 300 can be reduced.
- the transmitting UE 100 does not have to operate as a representative UE.
- UE 100 operates as a transmitting UE and a coordinating UE.
- the transmitting UE 100 transmits the coordinated UE list to other UEs 100 operating as representative UEs. Thereby, the amount of communication between the transmitting UE 100 and the base station 300 can be reduced.
- the UE 100 may operate only as a transmitting UE.
- the representative UE 100 transmits the coordinated UE list to the base station 300 and the coordinated UE 100 transmits coordinated transmission data to the base station 300 .
- cooperative transmission data can be cooperatively transmitted to the base station 300 even if the transmitting UE 100 cannot communicate with the base station 300 .
- the UE 100A transmits the cooperative UE list to the UE 100B (S551).
- UE 100B transmits the coordinated UE list to base station 300 instead of UE 100A.
- the UE 100 may operate only as a representative UE.
- the representative UE 100 receives control information including the cooperative UE list from another UE 100 (for example, the transmitting UE 100) that is not a cooperative UE through direct communication.
- the representative UE 100 acquires the cooperative UE list included in the control information.
- the representative UE 100 (communication processing unit 133 ) transmits the acquired cooperative UE list to the base station 300 .
- the representative UE 100 may transmit other control information that is described as being transmitted by the transmitting UE to the base station 300 in the first embodiment or any of the modified examples.
- the UE 100B receives the cooperative UE list from the UE 100A (S551).
- the UE 100B transmits the coordinated UE list to the base station 300 (S555).
- UE 100A is determined as the representative UE.
- the representative UE determination method according to the first embodiment of the present disclosure is not limited to this example.
- the representative UE 100 may be selected from among the UEs 100 that are capable of direct communication with the transmitting UE 100 and that are capable of communicating with the base station 300 .
- UE 100 (information acquisition unit 131 ) acquires representative UE information indicating UE 100 that can communicate with base station 300 .
- UE 100 (communication processing unit 133 ) transmits control information including a cooperating UE list to base station 300 when UE 100 is UE 100 indicated by the representative UE information.
- the representative UE 100 is selected from among the coordinating UEs 100, which are UEs 100 that can directly communicate with the transmitting UE 100 and can communicate with the base station 300.
- the transmitting UE 100 selects a representative UE 100 from among the coordinating UEs 100 and transmits representative UE information indicating the representative UE 100 to the coordinating UEs.
- Cooperating UE 100 determines whether the received representative UE information indicates itself. When the representative UE information indicates itself, the cooperative UE 100 operates as a representative UE.
- the representative UE 100 that can communicate with the base station 300 can be selected. Therefore, even if the transmitting UE 100 cannot communicate with the base station 300 , it is possible to transmit control information for cooperative transmission such as a cooperative UE list to the base station 300 .
- transmission allocation information is transmitted from transmitting UE 100 to cooperative UE 100 .
- transmission of transmission allocation information according to the first embodiment of the present disclosure is not limited to this example.
- the transmission allocation information may be transmitted from the representative UE 100 to the base station 300.
- the representative UE 100 receives transmission allocation information from the transmitting UE 100 and transmits control information including the transmission allocation information to the base station 300 .
- the transmission allocation information may be included in the control information including the cooperating UE list.
- the base station 300 may allocate UL resources to the cooperative UE 100 using transmission allocation information. By this means, it is possible to allocate UL resources for cooperative transmission just enough.
- the transmitting UE 100 may share only the part of the cooperative transmission data that each cooperative UE 100 should transmit instead of transmitting the transmission allocation information to the cooperative UE 100 .
- cooperative UE 100 uses UL resources allocated from base station 300 after receiving cooperative transmission data from transmitting UE 100. to the base station 300 .
- cooperative transmission according to the first embodiment of the present disclosure is not limited to this example.
- the transmitting UE 100 may transmit data identification information for identifying cooperative transmission data to the cooperative UE 100.
- the transmitting UE 100 transmits the data identification information together with the cooperative transmission data to the cooperative UE 100 by direct communication.
- the data identification information may be, for example, the identifier of the transmitting UE or the representative UE or information generated from the identifier. Note that the data identification information may be transmitted separately from the cooperative transmission data.
- the base station 300 transmits data identification information associated with UL resources for cooperative transmission to the cooperative UE 100 .
- the base station 300 transmits the data identification information to the cooperative UE 100 together with resource allocation information indicating UL resources for cooperative transmission.
- the data identification information may be transmitted separately from the resource allocation information.
- the coordinated UE 100 transmits the coordinated transmission data indicated by the received data identification information to the base station 300 using the UL resource associated with the data identification information allocated by the base station 300 .
- the coordinated UE list is transmitted from the representative UE 100 to the base station 300 .
- transmission of the cooperative UE list according to the first embodiment of the present disclosure is not limited to this example.
- the transmitting UE 100 may transmit a cooperative UE list to neighboring UEs 100 together with cooperative transmission data.
- the transmitting UE 100 broadcasts cooperative transmission data and a cooperative UE list on the sidelink.
- the representative UE 100 may transmit the coordinated UE list to the neighboring UEs 100 .
- a cooperative UE 100 receives cooperative transmission data addressed to neighboring UEs 100 and a cooperative UE list. For example, the cooperative UE 100 receives broadcast cooperative transmission data and a cooperative UE list on the sidelink.
- the cooperating UE 100 refers to the received cooperating UE list and determines whether the cooperating UE 100 itself is the cooperating UE 100 .
- the cooperative UE 100 holds the received cooperative transmission data and transmits it to the base station 300 using UL resources allocated by the base station 300 .
- Second Embodiment> A second embodiment of the present disclosure will be described. In this embodiment, multiple UEs cooperatively transmit data to multiple base stations. Description of functions or configurations that are substantially the same as those of the first embodiment will be omitted.
- system 2 includes UE 100 (UE 100A and UE 100B), UE 200 and base station 300 (base station 300A and base station 300B).
- System 2 is a 3GPP TS-compliant system. More specifically, for example, the system 2 is a 5G or NR TS compliant system. Of course, system 2 is not limited to this example.
- Base station 300 (base station 300A and base station 300B) communicates with UEs located within the coverage area of base station 300 .
- Base station 300 also communicates with other base stations 300 .
- a base station 300 communicates with other base stations 300 via the Xn interface.
- a base station 300 may communicate with other base stations 300 via the X2 interface.
- Each of UE 100 (UE 100A and UE 100B) and UE 200 communicates with base station 300 having a coverage area in which it is located.
- UE 100A communicates with base station 300A
- UE 100B and UE 200 communicate with base station 300B.
- FIG. 10 An example of operations of the UE 100 and the base station 300 according to the second embodiment of the present disclosure will be described with reference to FIGS. 10 and 11.
- FIG. 10 the UE 100 may act as a transmitting UE, a representative UE, a coordinating UE, or any two or all of them.
- the base station 300 can operate as a receiving base station (second base station) or a cooperative base station (first base station).
- the transmitting UE 100 transmits cooperative transmission data to be transmitted to the base station 300 to the cooperative UE 100 . Also, the transmitting UE 100 acquires base station information (also referred to as cooperative base station information) indicating base stations 300 with which the cooperative UE 100 and the cooperative UE 100 can communicate.
- base station information also referred to as cooperative base station information
- the transmitting UE 100 acquires cooperative base station information.
- the cooperative base station information is two or more UEs 100 capable of transmitting or receiving cooperative transmission data in direct communication, two or more UEs 100 capable of cooperatively transmitting cooperative transmission data to the base station 300 (that is, two This is information indicating one or more UEs 100 among one or more cooperating UEs 100 and base stations 300 with which the one or more UEs 100 can communicate.
- the cooperative base station information indicates the base stations 300 other than the base station 300 that can communicate with the transmitting UE 100 or the representative UE 100 and the cooperative UEs 100 that can communicate with the base station 300 .
- the coordinated base station information indicates a set of base station 300 identifiers and UE 100 identifiers.
- the cooperative base station information may be stored in storage section 120 .
- the transmitting UE 100 transmits cooperative transmission data to the cooperative UE 100 by direct communication. Since transmission of cooperative transmission data in the second embodiment is substantially the same as in the first embodiment, the description is omitted.
- the representative UE 100 transmits cooperative base station information to the receiving base station 300 as a representative of two or more cooperative UEs 100 .
- the representative UE 100 transmits cooperative base station information to the base station 300 .
- the representative UE 100 (information acquisition unit 131) acquires cooperative base station information.
- the representative UE 100 (communication processing unit 133 ) transmits control information including cooperative base station information to the base station 300 .
- the representative UE 100 (communication processing unit 133) transmits UCI including cooperative base station information to the base station 300.
- the representative UE 100 (communication processing unit 133) transmits a MAC CE or RRC message including cooperative base station information to the base station 300.
- the cooperative UE 100 receives cooperative transmission data from the transmitting UE 100, and cooperates with other cooperative UE 100 to transmit the received cooperative transmission data to a base station 300 (receiving base described later) with which the cooperative UE 100 can communicate. station 300 or cooperative base station 300).
- the cooperative UE 100 receives cooperative transmission data from the transmitting UE 100 by direct communication. Receipt of cooperative transmission data in the second embodiment is substantially the same as in the first embodiment, so description thereof will be omitted.
- the cooperative UE 100 receives resource allocation information indicating UL resources from the base station 300 .
- the cooperative UE 100 receives data identification information for identifying cooperative transmission data from the base station 300 .
- the coordinated UE 100 (communication processing unit 133 ) receives control information including data identification information from the base station 300 .
- the cooperative UE 100 (information acquisition unit 131) acquires data identification information from the control information.
- the data identification information may be, for example, the identifier of the transmitting UE or the representative UE or information generated from the identifier.
- Resource allocation information is associated with data identification information. That is, the UL resource indicated by the resource allocation information is a resource for transmission of cooperative transmission data indicated by the data identification information.
- the data identification information may be included in control information including resource allocation information, or may be included in control information separate from the control information.
- the coordinated UE 100 can identify the coordinated transmission data associated with the received resource allocation information. For example, when a coordinated UE 100 operates as a representative UE or a transmitting UE, the coordinated UE 100 can identify coordinated transmission data, so data identification information may not be transmitted to the coordinated UE 100 . Alternatively, when there is one coordinated transmission data (in other words, when there is a single transmitting UE 100 sharing coordinated transmission data), communication of data identification information may be omitted.
- the cooperative UE 100 cooperates with other cooperative UEs 100 to transmit cooperative transmission data to the base station 300 .
- the coordinated UE 100 (communication processing unit 133) transmits coordinated transmission data identified by the data identification information to the base station 300 using the UL resource indicated by the resource allocation information.
- coordinated UE 100 uses UL resources indicated by resource allocation information received from base station 300 to transmit coordinated transmission data identified by data identification information among coordinated transmission data shared from transmitting UE 100 to base station 300. Send.
- Receiving Base Station 300 (also referred to as receiving base station 300) operating as a receiving base station receives cooperative base station information from representative UE 100 and coordinates UL resources using cooperative base station information. Allocate to UE 100 and receive cooperative transmission data from cooperative UE 100 . Also, the receiving base station 300 uses the cooperative base station information to transmit cooperative information to the base station 300 operating as a cooperative base station (also referred to as cooperative base station 300), and receives cooperative transmission data from the cooperative base station 300. do.
- a cooperative base station also referred to as cooperative base station 300
- the receiving base station 300 receives cooperative base station information from the representative UE 100 .
- the receiving base station 300 (first communication processing unit 343 ) receives control information including cooperative base station information from the representative UE 100 .
- the receiving base station 300 (information acquisition unit 341) acquires cooperative base station information included in the control information.
- the acquired cooperative base station information is stored in the storage unit 330 .
- the cooperative base station information indicates the base stations 300 other than the receiving base station 300 (that is, the cooperative base stations 300) and the cooperative UEs 100 that can communicate with the cooperative base stations 300.
- the receiving base station 300 receives the reference signal from the UE 100 . Since transmission of SRS in the second embodiment is substantially the same as in the first embodiment, description thereof is omitted.
- the receiving base station 300 does not receive the SRS from the cooperative UE 100 indicated by the cooperative base station information. Also, if the SRS from the coordinated UE 100 is received, the receiving base station 300 discards the information on the UL channel observed from the SRS received from the coordinated UE 100, or receives it from another coordinated UE 100. It is stored separately from the information of the UL propagation path observed from the SRS that is used.
- Receiving base station 300 transmits cooperative information to cooperative base station 300 using the received cooperative base station information. Specifically, receiving base station 300 (second communication processing section 345) sends control information including information (also referred to as coordinated UE information) indicating one or more coordinated UEs 100 indicated by coordinated base station information to a coordinated base station. 300.
- control information including information (also referred to as coordinated UE information) indicating one or more coordinated UEs 100 indicated by coordinated base station information to a coordinated base station. 300.
- the receiving base station 300 acquires data identification information for identifying cooperative transmission data.
- the receiving base station 300 (second communication processing unit 345 ) transmits control information including data identification information to the cooperative base station 300 .
- the receiving base station 300 acquires the data identification information based on the identifier of the UE 100 operating as the transmitting UE or representative UE that is the transmission source of the cooperative base station information. Note that the data identification information may be received from the representative UE 100 .
- the receiving base station 300 transmits control information including cooperative UE information and data identification information to the cooperative base station 300 via the Xn interface or the X2 interface.
- the receiving base station 300 transmits resource allocation information indicating UL resources for cooperative transmission to the cooperative UE 100 .
- the receiving base station 300 acquires the resource allocation information.
- the receiving base station 300 (first communication processing unit 343 ) transmits control information including resource allocation information to the cooperative UE 100 .
- the receiving base station 300 transmits control information including resource allocation information to the representative UE 100 that also operates as a cooperative UE.
- the receiving base station 300 determines UL resources based on the reference signal received from the cooperative UE 100. For example, the receiving base station 300 allocates UL resources for cooperative transmission to the cooperative UE 100 based on UL channel information for the cooperative UE 100 from which the receiving base station 300 has received the SRS. Control information including resource allocation information indicating the allocation of the UL resource is transmitted to the cooperative UE 100.
- the receiving base station 300 (first communication processing unit 343) transmits DCI including resource allocation information to the cooperative UE 100.
- the receiving base station 300 receives coordinated transmission data transmitted in cooperation from two or more cooperating UEs 100 . Specifically, the receiving base station 300 (first communication processing unit 343 ) receives cooperative transmission data from one or more cooperative UEs 100 . For example, the receiving base station 300 receives cooperative transmission data transmitted using UL resources allocated to the cooperative UE 100 operating as the representative UE.
- the receiving base station 300 receives cooperative transmission data from the cooperative base station 300 .
- the receiving base station 300 receives cooperative transmission data received from the cooperative UE 100 indicated by the cooperative base station information from the cooperative base station 300 via the Xn interface or the X2 interface.
- the receiving base station 300 acquires the entire coordinated transmission data based on each received coordinated transmission data. For example, the receiving base station 300 performs joint reception processing based on each part of the entire cooperative transmission data received from the cooperative UE 100 and the cooperative base station 300 . Note that if the received coordinated transmission data is the entire coordinated transmission data, the receiving base station 300 may selectively acquire one of the received coordinated transmission data.
- Cooperative base station 300 receives cooperative information from receiving base station 300 and transmits cooperative transmission data to receiving base station 300 . Also, the cooperative base station 300 allocates UL resources to the cooperative UE 100 based on the received cooperative information, and receives cooperative transmission data from the cooperative UE 100 .
- Cooperating base station 300 receives cooperation information from receiving base station 300 .
- the cooperative base station 300 (second communication processing unit 345) receives control information including information indicating one or more cooperative UEs 100 capable of communicating with the cooperative base station 300 (that is, cooperative UE information). 300.
- the cooperative base station 300 (information acquisition unit 341) acquires information indicating one or more cooperative UEs 100 included in the control information.
- the cooperative base station 300 receives control information including data identification information for identifying cooperative transmission data from the receiving base station 300.
- the cooperative base station 300 (information acquisition unit 341) acquires data identification information included in the control information.
- the cooperative base station 300 receives control information including cooperative UE information and data identification information from the receiving base station 300 via the Xn interface or the X2 interface.
- the cooperative base station 300 receives the reference signal from the UE 100 . Since transmission of SRS in the second embodiment is substantially the same as in the first embodiment, description thereof is omitted.
- the cooperative base station 300 does not receive the SRS from the cooperative UE 100 other than the cooperative UE 100 indicated by the cooperative UE information. Also, if the SRS from the other cooperating UE 100 is received, the cooperating base station 300 discards the UL channel information observed from the SRS received from the other cooperating UE 100, or the cooperating UE The information is stored separately from the UL channel information observed from the SRS received from the cooperative UE 100 indicated by the information.
- Cooperative base station 300 transmits resource allocation information indicating UL resources for cooperative transmission to cooperative UE 100 capable of communicating with cooperative base station 300 .
- the cooperative base station 300 (information acquisition unit 341) acquires resource allocation information.
- the cooperative base station 300 (first communication processing unit 343) transmits control information including resource allocation information to the cooperative UE 100 indicated by the cooperative UE information.
- the cooperative base station 300 determines UL resources based on the reference signal received from the cooperative UE 100.
- the coordinated base station 300 is the UE 100 from which the coordinated base station 300 has received the SRS, based on the UL channel information for the coordinated UE 100 indicated by the coordinated UE information, and assigns UL resources for coordinated transmission to the coordinated UE 100. assign.
- Control information including resource allocation information indicating the allocation of the UL resource is transmitted to the cooperative UE 100.
- the cooperative base station 300 transmits data identification information for identifying cooperative transmission data to the cooperative UE 100 .
- the cooperative base station 300 (information acquisition unit 341) acquires data identification information.
- the cooperative base station 300 (first communication processing unit 343) transmits control information including the data identification information to the cooperative UE 100 indicated by the cooperative UE information.
- the cooperative base station 300 (first communication processing unit 343) transmits DCI including resource allocation information and data identification information to the cooperative UE 100.
- the cooperative base station 300 receives cooperative transmission data from the cooperative UE 100 .
- the cooperative base station 300 (first communication processing unit 343) receives cooperative transmission data from the cooperative UE 100 indicated by the cooperative UE information.
- the cooperative base station 300 receives cooperative transmission data transmitted using UL resources allocated to the cooperative UE 100 indicated by the cooperative UE information.
- the cooperative base station 300 transmits cooperative transmission data to the receiving base station 300 .
- the cooperative base station 300 (second communication processing unit 345 ) transmits cooperative transmission data received from the cooperative UE 100 to the receiving base station 300 .
- the cooperative base station 300 transmits cooperative transmission data received from the cooperative UE 100 indicated by the cooperative UE information to the receiving base station 300 via the Xn interface or the X2 interface.
- UE 100A operates as a transmitting UE, representative UE and cooperative UE
- UE 100B operates as a cooperative UE
- base station 300A operates as a receiving base station
- base station 300B operates as a cooperative base station.
- the UE 100A transmits cooperative transmission data and transmission allocation information to the UE 100B (S601). For example, when a transmission request for data to be transmitted to base station 300 by coordinated transmission is generated, UE 100A acquires transmission allocation information for coordinated transmission data. The UE 100A transmits cooperative transmission data and transmission allocation information to the UE 100B.
- UE 100A and UE 100B transmit SRS to base station 300A and base station 300B, respectively (S603).
- UE 100A and UE 100B periodically transmit SRS to base station 300A and base station 300B after receiving SRS requests from base station 300A and base station 300B, respectively.
- SRS transmitted after sharing the cooperative transmission data is used, but the SRS transmitted before that may be used.
- the UE 100A transmits cooperative base station information to the base station 300A (S605).
- the UE 100A transmits to the base station 300A cooperative base station information indicating the base station 300B and the UE 100B with which the UE 100B with which cooperative transmission data is shared can communicate.
- the base station 300A transmits cooperative UE information and data identification information to the base station 300B (S607). For example, the base station 300A acquires coordinated UE information indicating the UE 100B indicated by the coordinated base station information. Also, the base station 300A acquires data identification information based on the identifier of the UE 100A, which is the transmission source of the cooperative base station information. The base station 300A transmits the acquired cooperative UE information and data identification information to the base station 300B indicated by the cooperative base station information.
- the base station 300A transmits resource allocation information to the UE 100A operating as a cooperative UE (S609). For example, the base station 300A allocates UL resources for cooperative transmission to the UE 100A that has received the SRS using UL channel information observed from the SRS. The base station 300A transmits resource allocation information indicating the allocated UL resource to the UE 100A.
- the base station 300B transmits resource allocation information and data identification information to the UE 100B operating as a cooperative UE (S611). For example, the base station 300B allocates UL resources for coordinated transmission to the UE 100B indicated by the coordinated UE information received from the base station 300A and having received the SRS using UL channel information observed from the SRS. .
- the SRS is also received from UE200, but UE200 is not the UE indicated by the coordinated UE information, so base station 300B does not allocate UL resources for coordinated transmission to UE200.
- the base station 300B transmits resource allocation information indicating the allocated UL resource and data identification information received from the base station 300A to the UE 100B.
- the UE 100A transmits cooperative transmission data to the base station 300A based on the received resource allocation information (S613). For example, the UE 100A uses the assigned UL resource to transmit coordinated transmission data to the base station 300A.
- the UE 100B transmits cooperative transmission data to the base station 300B based on the received resource allocation information and data identification information (S615). For example, the UE 100A uses the assigned UL resource to transmit cooperative transmission data identified by the data identification information to the base station 300B.
- the base station 300B transmits cooperative transmission data to the base station 300A (S617).
- the base station 300B transmits the coordinated transmission data received from the UE 100B to the base station 300A, which is the transmission source of the coordinated UE information.
- the base station 300A acquires the coordinated transmission data of the UE 100A based on the coordinated transmission data received from the base station 300B and the coordinated transmission data received from the UE 100A.
- Each block shown in FIG. 11 is a data or resource block.
- the cooperative transmission data assigned to each base station 300 that receives the cooperative transmission data will be explained in the case of FIG. 10 mentioned above.
- the coordinated transmission data is divided and received by base station 300A and base station 300B.
- the block size of cooperative transmission data shown on the left side of FIG. 11 is the sum of the block size corresponding to the data received by base station 300A shown in the center of FIG. 11 and the block size corresponding to the data received by base station 300B. are identical.
- coordinated transmission data may be redundantly assigned to base station 300A and base station 300B.
- UE 100A and UE 100B are each provided with UL resources from base station 300A and base station 300B, respectively.
- UE 100A is allocated resources for data transmission to base station 300A
- UE 100B is allocated resources for data transmission to base station 300B.
- the sizes of the resources allocated to the UE 100A and the UE 100B may correspond to the sizes of the cooperative transmission data to be transmitted by each of the UE 100A and the UE 100B.
- the representative UE 100 transmits cooperative base station information to the receiving base station 300, and the receiving base station 300 receives the cooperative base station information.
- the cooperative base station 300 receives cooperative UE information indicating the UE 100 indicated by the cooperative base station information from the receiving base station 300 . Therefore, cooperative base station 300 can recognize cooperative UE 100 that transmits cooperative transmission data to itself and allocate UL resources. Also, the cooperative UE 100 receives data identification information from the cooperative base station 300 . Therefore, cooperative transmission data to be transmitted to cooperative base station 300 can be identified. Therefore, it is possible to cooperatively transmit data even if the UE groups have different communicable base stations.
- the UE 100A operates as a transmitting UE and a cooperative UE
- the UE 100B operates as a representative UE and a cooperative UE
- the base station 300A operates as a cooperative base station
- the base station 300B operates as a receiving base station. Note that two or more of these modifications may be combined.
- the modified example of the first embodiment may be applied to the second embodiment.
- the transmitting UE 100 acquires cooperative base station information from the storage unit 120 .
- the method for obtaining cooperative base station information according to the second embodiment of the present disclosure is not limited to this example.
- the transmitting UE 100 may acquire cooperative base station information using direct communication.
- the transmitting UE 100 receives control information including information indicating base stations 300 with which the cooperative UE 100 can communicate from the cooperative UE 100 by direct communication.
- the transmitting UE 100 acquires base station information indicating the coordinated UE 100 that is the transmission source of the control information and the base station 300 included in the control information.
- the coordinated UE 100 acquires information indicating base stations 300 with which the coordinated UE 100 can communicate.
- the cooperative UE 100 (communication processing unit 133) transmits control information including the information to the transmitting UE 100.
- the UE 100B receives cooperative transmission data, transmission allocation information, and cooperative base station information from the UE 100A (S651).
- Cooperative base station information may be received separately from cooperative transmission data and transmission allocation information.
- the transmitting UE 100 may acquire the cooperative base station information by adding information indicating the cooperative UE 100 capable of communicating with the cooperative base station 300.
- the transmitting UE 100 receives information indicating base stations capable of communicating with the cooperative UE 100 from the cooperative UE 100 through sidelink communication.
- the transmitting UE 100 acquires cooperative base station information indicating the cooperative UE 100 that is the transmission source of the information and the base station 300 indicated by the information.
- the base stations 300 with which the cooperative UE 100 can communicate can be more reliably grasped. Therefore, the possibility of coordinated transmission failure can be reduced.
- base station information indicating the receiving base station 300 and the cooperative UE 100 capable of communicating with the receiving base station 300 may be transmitted from the representative UE 100 to the receiving base station 300.
- the representative UE 100 acquires one or more cooperative UEs 100 that can communicate with the receiving base station 300 and other base station information indicating the receiving base station 300 .
- the representative UE 100 (communication processing unit 133 ) transmits control information including the other base station information to the receiving base station 300 .
- the UE 100B receives cooperative transmission data, transmission allocation information, and cooperative base station information from the UE 100A (S651).
- the UE 100B transmits cooperative base station information and other base station information to the base station 300B (S655). For example, the UE 100B acquires another base station information indicating the base station 300B and the UE 100B with which the UE 100B can communicate. The UE 100B transmits the other base station information and the cooperative base station information received from the UE 100A to the base station 300B.
- the base station information including the different base station information and the cooperative base station information may be transmitted to the receiving base station 300 . That is, two or more cooperative UEs 100 and base station information indicating base stations 300 with which the two or more cooperative UEs 100 can communicate may be transmitted to the receiving base station 300 .
- the receiving base station 300 can indicate to the receiving base station 300 the cooperative UEs 100 that can communicate with the receiving base station 300 . Therefore, when the representative UE 100 that transmits the coordinated base station information is not a coordinated UE, the receiving base station 300 can determine the coordinated UE 100 to which UL resources should be allocated.
- cooperative base station information is transmitted from transmitting UE 100 operating as a representative UE to receiving base station 300 .
- the transmitting UE 100 according to the second embodiment of the present disclosure is not limited to this example.
- the transmitting UE 100 may not operate as the representative UE.
- UE 100 operates as a transmitting UE and a coordinating UE.
- the transmitting UE 100 transmits the cooperative base station information to another UE 100 operating as a representative UE. Thereby, the amount of communication between the transmitting UE 100 and the base station 300 can be reduced.
- the representative UE 100 receives control information including cooperative base station information from other UEs 100 (eg, transmitting UE 100) that are not cooperative UEs through direct communication.
- the representative UE 100 acquires cooperative base station information included in the control information.
- the representative UE 100 (communication processing unit 133 ) transmits the acquired cooperative base station information to the receiving base station 300 .
- the UE 100A transmits cooperative base station information to the UE 100B (S651). Instead of UE 100A, UE 100B transmits cooperative base station information to base station 300B.
- the UE 100A is determined as the representative UE.
- the representative UE determination method according to the second embodiment of the present disclosure is not limited to this example.
- the representative UE 100 is selected from among the UEs 100 that can communicate with the transmitting UE 100 by direct communication and can communicate with at least one of the plurality of base stations 300.
- UE 100 information acquisition section 131
- UE 100 acquires representative UE information indicating UE 100 that can communicate with receiving base station 300 .
- UE 100 (communication processing unit 133 ) transmits control information including cooperative base station information to receiving base station 300 when UE 100 is UE 100 indicated by representative UE information.
- the representative UE 100 is selected from the cooperative UEs 100 that are UEs 100 that can communicate with the base station 300 .
- the transmitting UE 100 selects a representative UE 100 from among the coordinating UEs 100 and transmits representative UE information indicating the representative UE 100 to the coordinating UEs.
- Cooperating UE 100 determines whether the received representative UE information indicates itself. When the representative UE information indicates itself, the cooperative UE 100 operates as a representative UE.
- representative UE information indicating UE 100B is acquired by UE 100A, and the representative UE information is transmitted to UE 100B.
- the UE 100B that has received the representative UE information operates as the representative UE because the representative UE information indicates the UE 100B.
- a representative UE 100 that can communicate with at least one of the plurality of base stations 300 can be selected. Therefore, even if the transmitting UE 100 cannot communicate with any of the plurality of base stations 300 , it is possible to transmit control information for cooperative transmission such as cooperative base station information to the base station 300 .
- the transmission allocation information indicates the portion of the entire cooperative transmission data that each cooperative UE 100 should transmit.
- the transmission allocation information according to the second embodiment of the present disclosure is not limited to this example.
- data portion information (also referred to as reception allocation information) indicating a portion of the entire cooperative transmission data received by each of the plurality of base stations 300 .) may be shared.
- the receiving base station 300 acquires data part information related to the part of the cooperative transmission data transmitted from the cooperative UE 100 capable of communicating with the cooperative base station 300 to the cooperative base station 300 .
- the receiving base station 300 (second communication processing unit 345 ) transmits control information including the data portion information to the cooperative base station 300 .
- the cooperative base station 300 (second communication processing unit 345 ) receives control information including the data portion information from the receiving base station 300 .
- the cooperative base station 300 (information acquisition unit 341) acquires data portion information included in the control information.
- the base station 300 acquires resource allocation information indicating uplink resources determined based on the data part information.
- the base station 300 (first communication processing unit 343) transmits control information including the resource allocation information to one or more cooperative UEs 100.
- the base station 300B transmits cooperative UE information, data identification information and reception allocation information to the base station 300A (S657).
- the base station 300A reserves UL resources for cooperative transmission according to the received reception allocation information.
- the base station 300B also reserves UL resources for cooperative transmission according to the reception allocation information.
- the base station 300B transmits resource allocation information to the UE 100B (S659). For example, the base station 300B allocates UL resources from the secured UL resources to the UE 100B, which is the transmission source of the cooperative base station information, based on the cooperative UE information. The base station 300B transmits resource allocation information indicating the UL resource to the UE 100B.
- the base station 300A transmits resource allocation information and data identification information to the UE 100A (S661). For example, the base station 300A allocates UL resources to the UE 100 indicated by the coordinated UE information based on the coordinated UE information from among the secured UL resources. The base station 300A transmits resource allocation information indicating the UL resource and data identification information to the UE 100A.
- the reception allocation information may be acquired by the reception base station 300.
- the receiving base station 300 acquires reception allocation information according to the number of cooperative base stations 300 indicated by the cooperative base station information received from the representative UE 100 .
- the receiving base station 300 may acquire reception allocation information according to the load status of the cooperative base station 300 and the receiving base station 300 .
- the reception allocation information may be transmitted to the representative UE 100.
- the representative UE 100 acquires transmission allocation information according to the reception allocation information.
- the reception allocation information may be acquired from the representative UE 100.
- the representative UE 100 acquires reception allocation information according to transmission allocation information. More specifically, the representative UE 100 transmits the cooperative transmission data to the base station 300 according to the part of the entire cooperative transmission data indicated by the transmission allocation information and the base station 300 with which the cooperative UE 100 that transmits the part can communicate. Acquire reception allocation information indicating the part of
- the transmission allocation information and the reception allocation information may be included in one piece of information.
- reception quota information may be included in transmission quota information.
- the transmission allocation information may be allocation information as shown in FIG. 11, for example.
- system 3 includes UE 100 (UE 100A, UE 100B and UE 100C), UE 200 and base station 300 (base station 300A and base station 300B).
- System 3 is a 3GPP TS-compliant system. More specifically, for example, the system 3 is a 5G or NR TS compliant system. Of course, system 3 is not limited to this example.
- Base station 300 (base station 300A and base station 300B) communicates with UEs located within the coverage area of base station 300 .
- Base station 300 also communicates with other base stations 300 .
- FIG. 14 An example of operations of the UE 100 and the base station 300 according to the third embodiment of the present disclosure will be described with reference to FIGS. 14 and 15.
- FIG. 14 the UE 100 may act as a transmitting UE, a representative UE, a coordinating UE, or any two or all of them.
- Base station 300 may also operate as a receiving base station or a cooperating base station.
- the transmitting UE 100 transmits to the cooperative UE 100 cooperative transmission data and transmission allocation information to be transmitted to the base station 300 . Also, the transmitting UE 100 acquires a cooperating UE list and cooperating base station information.
- the subsequent operation of the transmitting UE 100 of the third embodiment is substantially the same as that of the first or second embodiment, so the description is omitted.
- the operations are acquisition of a cooperative UE list, transmission allocation, and transmission of cooperative transmission data.
- the representative UE 100 transmits a cooperating UE list and coordinating base station information to the receiving base station 300 as a representative of two or more cooperating UEs 100 .
- the subsequent operation of the representative UE 100 of the third embodiment is substantially the same as that of the first or second embodiment, so the description is omitted.
- the action is the transmission of a cooperating UE list.
- a cooperative UE 100 receives cooperative transmission data from a transmitting UE 100, and cooperates with another cooperative UE 100 to transmit the received cooperative transmission data to a base station 300 with which the cooperative UE 100 can communicate.
- the following operations of the cooperative UE 100 of the third embodiment are substantially the same as those of the first or second embodiment, so descriptions thereof will be omitted.
- the operations are receiving coordinated transmission data, transmitting SRS, receiving resource allocation and data identification information, and transmitting coordinated transmission data.
- the receiving base station 300 receives the coordinated UE list and coordinated base station information from the representative UE 100, allocates UL resources to the coordinated UE 100 using the coordinated UE list and the coordinated base station information, and performs coordinated transmission. Data is received from the cooperative UE 100 . Also, the receiving base station 300 uses the cooperative UE list to transmit cooperative information to the cooperative base station 300 and receives cooperative transmission data from the cooperative base station 300 .
- the receiving base station 300 transmits the cooperative UE list, transmission allocation information and data identification information to the cooperative base station 300 as cooperation information. Specifically, the receiving base station 300 transmits to the cooperative base station 300 a cooperative UE list indicating the cooperative UEs 100, transmission allocation information indicating portions of the entire cooperative transmission data to be transmitted by the respective cooperative UEs 100, and data identification information. do.
- the transmission allocation information indicates a portion of the entire cooperative transmission data to be transmitted by two or more cooperative UEs 100 and a portion of the entire cooperative transmission data to be received by each of the plurality of base stations 300 . That is, the transmission allocation information includes the aforementioned reception allocation information.
- the transmission allocation information may be, for example, allocation information as shown in FIG. 15, which will be described later.
- the receiving base station 300 may receive transmission allocation information from the representative UE 100 . Alternatively, the receiving base station 300 may acquire transmission allocation information based on the cooperating UE list and cooperating base station information.
- the receiving base station 300 may transmit to the cooperative base station 300 a cooperative UE list indicating only cooperative UEs 100 that can communicate with the cooperative base station 300 . Also, the receiving base station 300 may transmit to the cooperative base station 300 the transmission allocation information only for the cooperative UE 100 that can communicate with the cooperative base station 300 . Alternatively, the receiving base station 300 may transmit cooperative base station information to the cooperative base station 300 instead of or along with the cooperative UE list.
- the receiving base station 300 transmits resource allocation information indicating UL resources for cooperative transmission to the cooperative UEs 100 capable of communicating with the receiving base station 300 .
- the receiving base station 300 acquires resource allocation information for the cooperative UE 100 that can communicate with the receiving base station 300 .
- the receiving base station 300 (first communication processing unit 343) transmits control information including the resource allocation information to the cooperative UEs 100 that can communicate with the receiving base station 300 among the cooperative UEs 100 indicated by the cooperative UE list.
- the coordinated UE 100 that can communicate with the receiving base station 300 is a UE 100 other than the coordinated UE 100 indicated by the coordinated base station information among the coordinated UEs 100 indicated by the coordinated UE list.
- the receiving base station 300 determines UL resources based on reference signals received from cooperative UEs 100 that can communicate with the receiving base station 300 .
- the receiving base station 300 is the cooperative UE 100 from which the receiving base station 300 has received the SRS, and among the cooperative UEs 100 indicated by the cooperative UE list, the receiving base station 300 can communicate with the UL channel information for the cooperative UE 100. Based on this, UL resources for cooperative transmission are allocated to the cooperative UE 100. Control information including resource allocation information indicating the allocation of the UL resource is transmitted to the cooperative UE 100.
- the receiving base station 300 transmits cooperative precoding for cooperative MIMO to two or more cooperative UEs 100 that can communicate with the receiving base station 300. Specifically, the receiving base station 300 (information acquisition unit 341) acquires cooperative precoding regarding cooperative transmission of the two or more cooperative UEs 100. FIG. The receiving base station 300 (first communication processing unit 343 ) transmits control information including the cooperative precoding to the two or more cooperative UEs 100 .
- the receiving base station 300 determines control information for cooperative MIMO based on reference signals received from two or more cooperative UEs 100 capable of communicating with the receiving base station 300 . For example, the receiving base station 300 performs cooperative precoding for cooperative MIMO based on UL channel information for two or more cooperative UEs 100 that can communicate with the receiving base station 300 out of the cooperative UEs 100 indicated by the cooperative UE list. to decide. Control information including the cooperative precoding is transmitted to the two or more cooperative UEs 100 .
- the following operations of the receiving base station 300 of the third embodiment are substantially the same as those of the base station 300 of the first embodiment or the receiving base station 300 of the second embodiment, so description thereof will be omitted. .
- the operations are reception of cooperative UE list, reception of cooperative base station information, reception of SRS, and reception of cooperative transmission data.
- Cooperative base station 300 receives cooperative information from receiving base station 300 and transmits cooperative transmission data to receiving base station 300 . Also, the cooperative base station 300 allocates UL resources to the cooperative UE 100 based on the received cooperative information, and receives cooperative transmission data from the cooperative UE 100 .
- Cooperating base station 300 receives the cooperating UE list, transmission allocation information, and data identification information from receiving base station 300 as cooperation information.
- the cooperative base station 300 identifies the cooperative UEs 100 that can communicate with the cooperative base station 300 from the cooperative UE list. For example, when cooperative base station information is received from the receiving base station 300, the cooperative base station 300 may identify cooperative UEs 100 capable of communicating with the cooperative base station 300 from the cooperative UE list and the cooperative base station information.
- Cooperative base station 300 transmits resource allocation information indicating UL resources for cooperative transmission to cooperative UEs 100 capable of communicating with cooperative base stations 300 among cooperative UEs 100 indicated by the cooperative UE list. Send.
- the cooperative base station 300 determines UL resources based on reference signals received from the cooperative UEs 100 that can communicate with the cooperative base station 300 among the cooperative UEs 100 indicated by the cooperative UE list.
- the cooperative base station 300 transmits data identification information for identifying cooperative transmission data to the cooperative UEs 100 that can communicate with the cooperative base station 300 among the cooperative UEs 100 indicated by the cooperative UE list.
- the cooperative base station 300 transmits cooperative precoding for cooperative MIMO to two or more cooperative UEs 100 that can communicate with the cooperative base station 300 among the cooperative UEs 100 indicated by the cooperative UE list. Specifically, the cooperative base station 300 (information acquisition unit 341 ) acquires cooperative precoding regarding cooperative transmission of the two or more cooperative UEs 100 . The cooperative base station 300 (first communication processing unit 343 ) transmits control information including the cooperative precoding to the two or more cooperative UEs 100 .
- the cooperative base station 300 determines control information for cooperative MIMO based on reference signals received from two or more cooperative UEs 100 that can communicate with the cooperative base station 300 . For example, the cooperative base station 300 performs cooperative precoding for cooperative MIMO based on UL channel information for two or more cooperative UEs 100 that can communicate with the cooperative base station 300 out of the cooperative UEs 100 indicated by the cooperative UE list. to decide. Control information including the cooperative precoding is transmitted to the two or more cooperative UEs 100 .
- the following operations of the receiving base station 300 of the third embodiment are substantially the same as those of the base station 300 of the first embodiment or the receiving base station 300 of the second embodiment, so description thereof will be omitted. .
- the operations are reception of SRS, reception of cooperative transmission data, and transmission of cooperative transmission data to the receiving base station.
- UE 100A operates as a transmitting UE, a representative UE and a coordinated UE
- UE 100B operates as a coordinated UE that communicates with the receiving base station 300
- UE 100C operates as a coordinated UE that communicates with the coordinated base station 300
- the base station 300A operates as a receiving base station
- the base station 300B operates as a cooperative base station.
- UE 100A transmits cooperative transmission data and transmission allocation information to UE 100B and UE 100C (S701). For example, when a transmission request for data to be transmitted to the base station 300A in cooperative transmission occurs, the UE 100A acquires transmission allocation information for cooperative transmission by the UE 100A, UE 100B, and UE 100C. UE 100A transmits cooperative transmission data and transmission allocation information to UE 100B and UE 100C.
- UE100A and UE100B transmit SRS to base station 300A
- UE100C transmits SRS to base station 300B (S703).
- UE 100A and UE 100B periodically transmit SRS to base station 300A after receiving the SRS request from base station 300A.
- the UE 100C After receiving the SRS requests from the base station 300B, the UE 100C periodically transmits the SRS to the base station 300B.
- the UE 100A transmits the cooperative UE list and cooperative base station information to the base station 300A (S705). For example, UE 100A acquires cooperative base station information indicating UE 100C and base station 300B that can communicate with base station 300B that is different from base station 300A that UE 100A can communicate with. The UE 100A transmits the cooperative UE list and cooperative base station information to the base station 300A. For example, the coordinated UE list indicates UE 100B and UE 100C.
- the base station 300A transmits the coordinated UE list, transmission allocation information and data identification information to the base station 300B (S707).
- the base station 300A acquires a coordinated UE list indicating the UE 100C indicated by the coordinated base station information from the received coordinated UE list.
- the base station 300A acquires transmission allocation information based on the cooperative UE list and cooperative base station information.
- the base station 300A acquires data identification information based on the identifier of the UE 100A, which is the transmission source of the cooperative base station information.
- the base station 300A transmits the acquired cooperative UE list, transmission allocation information and data identification information to the base station 300B indicated by the cooperative base station information.
- the base station 300A transmits resource allocation information and cooperative precoding to the UE 100A and UE 100B (S709). For example, the base station 300A allocates UL resources for cooperative transmission to UE 100A and UE 100B that have received SRS, using UL channel information observed from SRS, and acquires cooperative precoding. Although SRS is also received from UE 200, UE 200 is not a UE indicated by the coordinated UE list, so base station 300A does not allocate UL resources for coordinated transmission to UE 200 and does not target UE 200 for coordinated MIMO. The base station 300A transmits resource allocation information indicating allocated UL resources and cooperative precoding to the UE 100A and UE 100B.
- the base station 300B transmits resource allocation information and data identification information to the UE 100C (S711). For example, the base station 300B allocates UL resources for coordinated transmission to the UE 100C indicated by the coordinated UE list received from the base station 300A and receiving the SRS using UL channel information observed from the SRS. . The base station 300B transmits resource allocation information indicating the allocated UL resource and data identification information received from the base station 300A to the UE 100C.
- the UE 100A and UE 100B transmit cooperative transmission data to the base station 300A (S713).
- UE 100A and UE 100B transmit cooperative transmission data to base station 300A using the allocated UL resources and cooperative precoding.
- the UE 100C transmits cooperative transmission data to the base station 300B (S715).
- the UE 100C uses the assigned UL resource to transmit cooperative transmission data identified by the data identification information to the base station 300B.
- the base station 300B transmits cooperative transmission data to the base station 300A (S717).
- the base station 300B transmits the coordinated transmission data received from the UE 100C to the base station 300A, which is the transmission source of the coordinated UE information.
- the base station 300A acquires the coordinated transmission data of the UE 100A based on the coordinated transmission data received from the base station 300B and the coordinated transmission data received from the UE 100A and the UE 100B.
- Each block shown in FIG. 15 is a data or resource block.
- the cooperative transmission data assigned to each base station 300 that receives the cooperative transmission data will be explained using the case of FIG. In the case of FIG. 14, the coordinated transmission data is divided and received by base station 300A and base station 300B.
- the block size of cooperative transmission data shown on the left side of FIG. 15 is the sum of the block size corresponding to the data received by base station 300A shown in the center of FIG. 15 and the block size corresponding to the data received by base station 300B. are identical.
- Coordinated transmission data (resources) allocated to each UE 100 that transmits coordinated transmission data will be explained using the case of FIG.
- UE 100A and UE 100B are each provided with UL resources from base station 300A and base station 300B, respectively.
- UEs 100A and 100B are allocated resources for cooperative MIMO using cooperative precoding and resources for data transmission to base station 300A.
- the UE 100C is assigned resources for data transmission to the base station 300B.
- the coordinated UE list and the coordinated base station information or part thereof are transmitted and received among the representative UE 100, the receiving base station 300 and the coordinated base station 300. Therefore, when a group of UEs with different communicable base stations transmit data cooperatively, it is possible to allocate UL resources for cooperative transmission to UE 100 capable of cooperatively transmitting data.
- representative UE 100 transmits cooperative base station information to receiving base station 300 .
- the method of acquiring cooperative base station information in the base station 300 according to the third embodiment of the present disclosure is not limited to this example.
- the receiving base station 300 may acquire cooperative base station information using the cooperative UE list and the reference signal transmitted from the cooperative UE 100. For example, the receiving base station 300 acquires cooperative base station information indicating the cooperative base stations 300 and the cooperative UEs 100 other than the cooperative UE 100 from which the SRS has been received among the cooperative UEs 100 indicated by the cooperative UE list. When there is one candidate for cooperative base station 300, cooperative base station 300 can be identified as described above.
- the receiving base station 300 may acquire a cooperative UE list indicating cooperative UEs 100 capable of communicating with the cooperative base station 300 instead of acquiring cooperative base station information.
- the receiving base station 300 can acquire cooperative base station information without receiving cooperative base station information from the representative UE 100 . Therefore, communication between the representative UE 100 and the receiving base station 300 can be reduced.
- the system in the example application includes UE 100A-UE 100D, base station 300A and base station 300B.
- the UE 100A to UE 100D are mounted on vehicles, and the vehicles run in a row.
- UE 100A to UE 100D can communicate with each other via sidelinks.
- UE100A to UE100D are each capable of communicating with the base station 300A. Therefore, the UE 100A may transmit data directly to the base station 300A, or may transmit data to the base station 300A via the sidelinks with the UE100B-UE100D.
- the UE 100A cannot communicate with the base stations 300A and 300B because the vehicle on which the UE 100A is mounted has entered a tunnel. Therefore, UE 100A, as a transmitting UE, shares data with UE 100B to UE 100D. Any one of UE100B to UE100D as a representative UE transmits a coordinated UE list indicating UE100B to UE100D to base station 300A.
- the base station 300A allocates UL resources to the UEs 100B to 100D indicated by the coordinated UE list.
- the UE 100B-UE 100D cooperatively transmit the shared data to the base station 300A using the assigned UL resources.
- the UE 100A can communicate with the base station 300B because the vehicle on which the UE 100A is mounted has left the tunnel. However, the UE 100A cannot communicate with the base station 300A because it is outside the coverage area. Also, the UE 100B cannot communicate with the base stations 300A and 300B because the vehicle on which the UE 100B is mounted has entered the tunnel. Therefore, UE 100A shares data with UE 100C and UE 100D. Also, the UE 100A, as a representative UE, transmits cooperative base station information indicating the base station 300A and the UE 100C and UE 100D to the base station 300B. The base station 300B transmits cooperation information such as a cooperation UE list and data identification information to the base station 300A.
- Base station 300A allocates UL resources to UE 100C and UE 100D based on the received cooperation information.
- the UE 100C and UE 100D cooperatively transmit the shared data to the base station 300A using the assigned UL resources.
- the base station 300A transmits the data received from the UE 100C and the UE 100D to the base station 300B.
- the UE 100A also transmits data to the base station 300A.
- the base station 300B receives data from the UE 100A and the base station 300A.
- the UE 100A cannot communicate with the base station 300A because the vehicle on which the UE 100A is mounted has moved from the coverage area of the base station 300A to the coverage area of the base station 300B. However, due to the failure occurring in the base station 300B, the UE 100A cannot communicate with the base station 300B.
- UE 100A detects a communication abnormality with base station 300
- UE 100A shares information indicating the communication abnormality with UE 100B to UE 100D. Any one of UE100B to UE100D as a representative UE transmits a coordinated UE list indicating UE100B to UE100D to base station 300A.
- the base station 300A allocates UL resources to the UEs 100B to 100D indicated by the coordinated UE list.
- the UE 100B-UE 100D cooperatively transmit the shared information to the base station 300A using the assigned UL resources.
- the UE 100B is also unable to communicate with the base station 300A because the vehicle on which the UE 100B is mounted has moved from the coverage area of the base station 300A to the coverage area of the base station 300B.
- UE100C and UE100D can communicate with base station 300A, UE100A transmits data to base station 300A and the remote control system via UE100C and UE100D.
- the UE 100C is also unable to communicate with the base station 300A because the vehicle on which the UE 100C is mounted has moved from the coverage area of the base station 300A to the coverage area of the base station 300B.
- UE 100D can communicate with base station 300A, UE 100A transmits data to base station 300A and the remote control system via UE 100D.
- the UE 100A can communicate with the base station 300A via the UE100B to UE100D mounted on subsequent vehicles.
- the time from when the UE 100A becomes unable to communicate with any of the base stations 300 until when the UE 100D mounted on the last vehicle becomes unable to communicate with the base station 300A is It can be created over time.
- the remote control system can continue to control the deceleration or steering of the vehicle or monitor the inside and outside of the vehicle, thereby improving the safety of the vehicle.
- the remote control system can continue to control the deceleration or steering of the vehicle or monitor the inside and outside of the vehicle, thereby improving the safety of the vehicle.
- it is effective because communication disruption affects the safety or availability of driverless operation.
- steps in the processes described in this specification do not necessarily have to be executed in chronological order according to the order described in the flowcharts or sequence diagrams.
- steps in a process may be performed in an order different from that depicted in a flowchart or sequence diagram, or in parallel.
- some of the steps in the process may be deleted and additional steps may be added to the process.
- a method may be provided that includes the operation of one or more components of the apparatus described herein, and a program may be provided for causing a computer to perform the operation of the components. Further, a computer-readable non-transitional tangible recording medium recording the program may be provided.
- a method may be provided that includes the operation of one or more components of the apparatus described herein, and a program may be provided for causing a computer to perform the operation of the components.
- a computer-readable non-transitional tangible recording medium recording the program may be provided.
- such methods, programs, and computer-readable non-transitory tangible computer-readable storage mediums are also included in the present disclosure.
- user equipment refers to a mobile station, mobile terminal, mobile device, mobile unit, subscriber station, subscriber terminal, subscriber equipment, subscriber unit, wireless It may also be called a station, a wireless terminal, a wireless device, a wireless unit, a remote station, a remote terminal, a remote device, a remote unit, or the like.
- transmit may mean performing at least one layer of processing within the protocol stack used for transmission, or physically transmitting a signal wirelessly or by wire. It may mean sending to Alternatively, “transmitting” may mean a combination of performing the at least one layer of processing and physically transmitting the signal wirelessly or by wire. Similarly, “receive” may mean performing processing of at least one layer in the protocol stack used for reception, or physically receiving a signal wirelessly or by wire. may mean that Alternatively, “receiving” may mean a combination of performing the at least one layer of processing and physically receiving the signal wirelessly or by wire.
- the at least one layer may also be translated as at least one protocol.
- “obtain/acquire” may mean obtaining information among stored information, obtaining information among information received from other nodes. or to obtain the information by generating the information.
- the terms “include” and “comprise” are not meant to include only the recited items, but may include only the recited items, or may include only the recited items. It means that further items may be included in addition to the
- the information acquisition unit acquires valid condition information regarding a condition under which the user device information is valid, wherein the communication processing unit transmits control information including the validity condition information to the base station; A user equipment according to feature 1 or 2.
- the validity condition information includes communication status information regarding the status of transmission or reception of the data using the direct communication at the two or more user devices, A user equipment according to feature 3.
- the communication status information indicates the progress of transmission or reception of the data using the direct communication at the two or more user devices;
- the communication status information indicates the stability of the direct communication between the two or more user devices; A user equipment according to feature 4.
- the validity condition information indicates a validity time of the user equipment information
- the information acquisition unit acquires the data within the user device, wherein the communication processing unit transmits the acquired data to at least one user device among the two or more user devices; User equipment according to any one of the features 1-7.
- the communication processing unit receives other control information including the user device information from another user device through the direct communication; the information acquisition unit acquires the user equipment information included in the separate control information; User equipment according to any one of the features 1-7.
- the information acquisition unit acquires representative user device information indicating user devices that can communicate with the base station, If the user equipment is the user equipment indicated by the representative user equipment information, the communication processing unit transmits control information including the user equipment information to the base station.
- User equipment according to any one of the features 1-9.
- the control information is UCI (Uplink Control Information), MAC CE (Media Access Control Control Element) or RRC (Radio Resource Control) message, User equipment according to any one of the features 1-11.
- UCI Uplink Control Information
- MAC CE Media Access Control Control Element
- RRC Radio Resource Control
- a base station 300
- Two or more user equipments capable of transmitting or receiving data in direct communication, comprising user equipment information indicative of said two or more user equipments capable of cooperatively transmitting said data to said base station.
- a communication processing unit (343) that receives control information from a user device; an information acquisition unit (341) for acquiring the user device information included in the control information; base station.
- the information acquisition unit acquires resource allocation information indicating uplink resources, wherein the communication processing unit transmits control information including the resource allocation information to the two or more user equipments indicated by the user equipment information; 14.
- the base station of feature 13 The base station of feature 13.
- the communication processing unit receives reference signals from each of the two or more user devices indicated by the user device information; the resource allocation information indicates uplink resources determined based on the reference signal; 15. The base station of feature 14.
- the information acquisition unit acquires cooperative precoding, the communication processing unit transmits control information including the cooperative precoding to the two or more user equipments indicated by the user equipment information; A base station according to any one of features 13-15.
- User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments capable of cooperatively transmitting said data to a base station (300).
- receiving from the user equipment control information comprising: obtaining the user equipment information included in the control information; A program that makes a computer run
- User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments being capable of cooperatively transmitting said data to a base station (300). and transmitting control information including the user equipment information to the base station;
- User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments capable of cooperatively transmitting said data to a base station (300).
- receiving from the user equipment control information comprising: obtaining the user equipment information included in the control information;
- the communication processing unit receives another control information including information indicating the first base station with which the first user equipment can communicate from the first user equipment in the direct communication, The user according to feature 31, wherein the information acquisition unit acquires the base station information indicating the first user equipment that is a transmission source of the another control information and the first base station included in the control information. machine.
- the information acquisition unit acquires another base station information indicating the one or more second user equipments and the second base station; wherein the communication processing unit transmits control information including the another base station information to the second base station; User equipment according to feature 31 or 32.
- the information acquisition unit acquires user device information indicating the two or more user devices, wherein the communication processing unit transmits control information including the user equipment information to the second base station; User equipment according to any one of the features 31-33.
- the information acquisition unit acquires the data within the user device, wherein the communication processing unit transmits the acquired data to at least one user device among the two or more user devices; User equipment according to any one of the features 31-34.
- the communication processing unit receives other control information including the base station information from other user equipment through the direct communication, the information acquisition unit acquires the base station information included in the different control information; User equipment according to any one of the features 31-34.
- the information acquisition unit acquires representative user device information indicating user devices capable of communicating with the second base station, When the user equipment is the user equipment indicated by the representative user equipment information, the communication processing unit transmits control information including the base station information to the second base station.
- User equipment according to any one of the features 31-36.
- the control information is UCI (Uplink Control Information), MAC CE (Media Access Control Control Element) or RRC (Radio Resource Control) message, User equipment according to any one of the features 31-38.
- UCI Uplink Control Information
- MAC CE Media Access Control Control Element
- RRC Radio Resource Control
- a second base station comprising:
- the communication processing unit (345) transmits control information including information indicating the one or more first user equipments to the first base station; The second base station of feature 40.
- the information acquisition unit acquires data identification information for identifying the data, wherein the communication processing unit transmits control information including the data identification information to the first base station; A second base station according to feature 40 or 41.
- the information acquisition unit acquires data portion information regarding a portion of the data to be transmitted from the first user equipment to the first base station; wherein the communication processing unit transmits control information including the data part information to the first base station; A second base station according to any one of the features 40-42.
- the communication processing unit receives control information including user device information indicating the two or more user devices from the user device, the information acquisition unit acquires the user device information included in the control information; A base station according to any one of features 40-43.
- the information acquisition unit acquires resource allocation information indicating uplink resources, wherein the communication processing unit transmits control information including the resource allocation information to the one or more second user equipments among the two or more user equipments indicated by the user equipment information; 45.
- the base station of feature 44 The base station of feature 44.
- the communication processing unit receives a reference signal from the one or more second user equipments among the two or more user equipments indicated by the user equipment information; the resource allocation information indicates uplink resources determined based on the reference signal; 46.
- the base station of feature 45 The communication processing unit receives a reference signal from the one or more second user equipments among the two or more user equipments indicated by the user equipment information; the resource allocation information indicates uplink resources determined based on the reference signal; 46.
- the base station of feature 45 The base station of feature 45.
- the one or more second user equipments among the two or more user equipments indicated by the user equipment information are two or more second user equipments; the information obtaining unit obtains cooperative precoding for cooperative transmission of the two or more second user equipments; The communication processing unit transmits control information including the cooperative precoding to the two or more second user equipments.
- a base station according to any one of features 44-46.
- a first base station comprising:
- the communication processing unit receives control information including data identification information for identifying the data from the second base station, the information acquisition unit acquires the data identification information included in the control information; The first base station of feature 48.
- the communication processing unit receives from the second base station control information including data portion information relating to portions of the data to be transmitted from the one or more first user equipments to the first base station; the information acquisition unit acquires the data part information included in the control information;
- the first base station according to any one of features 48-50.
- the information acquisition unit acquires resource allocation information indicating uplink resources determined based on the data part information,
- the communication processing unit transmits control information including the resource allocation information to the one or more first user equipments.
- the first base station of feature 51 The first base station of feature 51.
- the information acquisition unit acquires resource allocation information indicating uplink resources,
- the communication processing unit transmits control information including the resource allocation information to the one or more first user equipments. 52.
- the first base station according to any one of features 48-51.
- the communication processing unit receives a reference signal from the one or more first user equipment; the resource allocation information indicates uplink resources determined based on the reference signal; 54.
- the one or more first user equipment is two or more first user equipment; the information acquisition unit acquires cooperative precoding for cooperative transmission of the two or more first user equipments; The communication processing unit transmits control information including the cooperative precoding to the two or more first user equipments.
- the first base station according to any one of features 48-54.
- the communication processing unit receives control information including resource allocation information indicating uplink resources corresponding to the data identification information from the base station,
- the information acquisition unit acquires the resource allocation information included in the control information,
- the communication processing unit uses uplink resources indicated by the resource allocation information to transmit the data identified by the data identification information to the base station.
- User equipment according to feature 56.
- Two or more user equipments capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) obtaining base station information indicative of one or more first user equipments and said first base stations communicable with a base station (300) of said two or more user equipments, said two or more user equipments communicating with a second base station including one or more second user equipment operable to communicate with the station (300); transmitting control information including the base station information to the second base station;
- Two or more user equipments capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) obtaining base station information indicative of one or more first user equipments and said first base stations communicable with a base station (300) of said two or more user equipments, said two or more user equipments communicating with a second base station including one or more second user equipment operable to communicate with the station (300); transmitting control information including the base station information to the second base station;
- a computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
- Two or more user equipments capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) receiving control information from user equipment including base station information indicative of one or more first user equipment and said first base stations capable of communicating with a base station (300) of said two or more users; the equipment includes one or more second user equipment operable to communicate with a second base station (300); obtaining the base station information included in the control information;
- a computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A user device (100) according to one aspect of the present disclosure is provided with: an information acquisition unit (131) for acquiring user device information indicating two or more user devices that can transmit or receive data by direct communication and that can cooperatively transmit the data to a base station (300); and a communication processing unit (133) for transmitting control information including the user device information to the base station.
Description
本出願は、2021年5月26日に出願された日本出願番号2021-88659号に基づくもので、ここにその記載内容を援用する。
This application is based on Japanese Application No. 2021-88659 filed on May 26, 2021, and the contents thereof are incorporated herein.
本開示は、ユーザ機器及び基地局に関する。
The present disclosure relates to user equipment and base stations.
3GPP(3rd Generation Partnership Project)において移動体通信技術が提案され、技術仕様(Technical Specification:TS)として標準化されている。とりわけ現在では、5G(5th Generation)の技術が提案され、標準化されている。
A mobile communication technology has been proposed in the 3GPP (3rd Generation Partnership Project) and standardized as a Technical Specification (TS). Especially now, 5G (5th Generation) technology has been proposed and standardized.
近年、複数のユーザ機器(user equipment:UE)による協調的アップリンク(Uplink:UL)が検討され始めている。例えば、特許文献1では、送信元のUEから複数のUEへデータがサイドリンクで共有され、基地局はSRS(Sounding Reference Signal)を受信した当該複数のUEにMIMO(Multi Input Multi Output)パラメータを通知し、当該複数のUEは通知されたMIMOパラメータを用いて当該基地局へ当該データを送信することが開示されている。
In recent years, cooperative uplink (UL) by multiple user equipment (UE) has begun to be considered. For example, in Patent Document 1, data is shared from a source UE to a plurality of UEs via sidelinks, and a base station sends MIMO (Multi Input Multi Output) parameters to the plurality of UEs that have received SRS (Sounding Reference Signal). and the UEs transmit the data to the base station using the notified MIMO parameters.
上述の特許文献1によれば、基地局はSRSを受信した複数のUEにULリソースを割り当て、当該複数のUEはULリソースを用いてデータを基地局へ送信する。しかし、発明者の詳細な検討の結果、以下の課題が見出された。即ち、基地局がSRSを受信した複数のUEの中に送信元のUEからデータを受信することが困難なUEが存在する場合、基地局は当該データの送信には使用されないULリソースを当該UEに割り当ててしまう可能性がある。換言すると、協調的なデータの送信ができないUEにULリソースが割り当てられる可能性がある。
According to the above-mentioned Patent Document 1, a base station allocates UL resources to multiple UEs that have received SRS, and the multiple UEs transmit data to the base station using the UL resources. However, as a result of detailed studies by the inventors, the following problems were found. That is, if there is a UE that is difficult to receive data from a transmission source UE among a plurality of UEs from which the base station has received the SRS, the base station assigns UL resources that are not used for transmitting the data to the UE. may be assigned to In other words, UEs that are not capable of cooperative data transmission may be assigned UL resources.
本開示の目的は、協調的にデータを送信可能なユーザ機器にULリソースを割り当てることを可能にするユーザ機器及び基地局を提供することにある。
It is an object of the present disclosure to provide user equipment and base stations that allow allocation of UL resources to user equipment capable of cooperatively transmitting data.
本開示の一態様に係るユーザ機器(100)は、直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に上記データを基地局(300)へ送信可能な上記2つ以上のユーザ機器を示すユーザ機器情報を取得する情報取得部(131)と、上記ユーザ機器情報を含む制御情報を上記基地局へ送信する通信処理部(133)と、を備える。
A user equipment (100) according to one aspect of the present disclosure is two or more user equipments capable of transmitting or receiving data in direct communication, which are capable of cooperatively transmitting said data to a base station (300). An information acquisition unit (131) for acquiring user equipment information indicating two or more user equipments, and a communication processing unit (133) for transmitting control information including the user equipment information to the base station.
本開示の一態様に係る基地局(300)は、直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に上記データを上記基地局に送信可能な上記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信する通信処理部(343)と、上記制御情報に含まれる上記ユーザ機器情報を取得する情報取得部(341)と、を備える。
A base station (300) according to one aspect of the present disclosure is two or more user equipments (100) capable of transmitting or receiving data in direct communication, and capable of cooperatively transmitting said data to said base station. a communication processing unit (343) that receives control information including user device information indicating the two or more user devices from the user device; and an information acquisition unit (341) that acquires the user device information included in the control information. , provided.
本開示によれば、協調的にデータを送信可能なユーザ機器にULリソースを割り当てることが可能になる。なお、本開示により、当該効果の代わりに、又は当該効果とともに、他の効果が奏されてもよい。
According to the present disclosure, it is possible to allocate UL resources to user equipments that can cooperatively transmit data. It should be noted that the present disclosure may provide other effects instead of or in addition to the above effects.
以下、添付の図面を参照して本開示の実施形態を詳細に説明する。なお、本明細書及び図面において、同様に説明されることが可能な要素については、同一の符号を付することにより重複説明が省略され得る。
Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In addition, in the present specification and drawings, elements that can be described in the same manner can be omitted from redundant description by assigning the same reference numerals.
説明は、以下の順序で行われる。
1.第1の実施形態
1-1.システムの構成
1-2.ユーザ機器の構成
1-3.基地局の構成
1-4.動作例
1-5.変形例
2.第2の実施形態
2-1.システムの構成
2-2.動作例
2-3.変形例
3.第3の実施形態
3-1.システムの構成
3-2.動作例
3-3.変形例
4.適用例
4-1.適用例1
4-2.適用例2 The description is given in the following order.
1. First Embodiment 1-1. System configuration 1-2. Configuration of user device 1-3. Configuration of base station 1-4. Operation example 1-5.Modification 2. Second Embodiment 2-1. System configuration 2-2. Operation example 2-3. Modification 3. Third Embodiment 3-1. System configuration 3-2. Operation example 3-3. Modification 4. Application example 4-1. Application example 1
4-2. Application example 2
1.第1の実施形態
1-1.システムの構成
1-2.ユーザ機器の構成
1-3.基地局の構成
1-4.動作例
1-5.変形例
2.第2の実施形態
2-1.システムの構成
2-2.動作例
2-3.変形例
3.第3の実施形態
3-1.システムの構成
3-2.動作例
3-3.変形例
4.適用例
4-1.適用例1
4-2.適用例2 The description is given in the following order.
1. First Embodiment 1-1. System configuration 1-2. Configuration of user device 1-3. Configuration of base station 1-4. Operation example 1-5.
4-2. Application example 2
<1.第1の実施形態>
本開示の第1の実施形態を説明する。本実施形態では、複数のUEが基地局へ協調的にデータを送信する。 <1. First Embodiment>
A first embodiment of the present disclosure will be described. In this embodiment, multiple UEs cooperatively transmit data to the base station.
本開示の第1の実施形態を説明する。本実施形態では、複数のUEが基地局へ協調的にデータを送信する。 <1. First Embodiment>
A first embodiment of the present disclosure will be described. In this embodiment, multiple UEs cooperatively transmit data to the base station.
<1-1.システムの構成>
図1を参照して、本開示の第1の実施形態に係るシステム1の構成の例を説明する。図1を参照すると、システム1は、UE100(UE100A及びUE100B)、UE200及び基地局300を含む。 <1-1. System Configuration>
An example of the configuration of asystem 1 according to the first embodiment of the present disclosure will be described with reference to FIG. Referring to FIG. 1 , system 1 includes UE 100 (UE 100A and UE 100B), UE 200 and base station 300 .
図1を参照して、本開示の第1の実施形態に係るシステム1の構成の例を説明する。図1を参照すると、システム1は、UE100(UE100A及びUE100B)、UE200及び基地局300を含む。 <1-1. System Configuration>
An example of the configuration of a
例えば、システム1は、3GPP(Third Generation Partnership Project)の技術仕様(Technical Specification:TS)に準拠したシステムである。より具体的には、例えば、システム1は、5G又はNR(New Radio)のTSに準拠したシステムである。当然ながら、システム1は、この例に限定されない。
For example, system 1 is a system that complies with the Technical Specifications (TS) of 3GPP (Third Generation Partnership Project). More specifically, for example, the system 1 is a system conforming to 5G or NR (New Radio) TS. Naturally, the system 1 is not limited to this example.
(1)基地局300
基地局300は、無線アクセスネットワーク(Radio Access Network:RAN)のノードであり、基地局300のカバレッジエリア内に位置するUE(例えば、UE100又はUE200)と通信する。 (1)Base station 300
Base station 300 is a node of a radio access network (RAN) and communicates with UEs (eg, UE 100 or UE 200) located within the coverage area of base station 300. FIG.
基地局300は、無線アクセスネットワーク(Radio Access Network:RAN)のノードであり、基地局300のカバレッジエリア内に位置するUE(例えば、UE100又はUE200)と通信する。 (1)
例えば、基地局300は、RANのプロトコルスタックを使用してUE(例えば、UE100又はUE200)と通信する。例えば、当該プロトコルスタックは、RRC(Radio Resource Control)、SDAP(Service Data Adaptation Protocol)、PDCP(Packet Data Convergence Protocol)、RLC(Radio Link Control)、MAC(Medium Access Control)、及び、物理(Physical:PHY)レイヤのプロトコルを含む。あるいは、上記プロトコルスタックは、これらのプロトコルの全てを含まず、これらのプロトコルの一部を含んでもよい。
For example, the base station 300 communicates with the UE (eg, UE100 or UE200) using the RAN protocol stack. For example, the protocol stack includes RRC (Radio Resource Control), SDAP (Service Data Adaptation Protocol), PDCP (Packet Data Convergence Protocol), RLC (Radio Link Control), MAC (Medium Access Control), and Physical: PHY) layer protocol. Alternatively, the protocol stack may not include all of these protocols, but some of these protocols.
例えば、基地局300は、gNBである。gNBは、UEに対するNRユーザプレーン及び制御プレーンプロトコル終端(NR user plane and control plane protocol terminations towards the UE)を提供し、NGインターフェースを介して5GC(5G Core Network)に接続されるノードである。あるいは、基地局300は、en-gNBであってもよい。en-gNBは、UEに対するNRユーザプレーン及び制御プレーンプロトコル終端を提供し、EN-DC(E-UTRA-NR Dual Connectivity)においてセカンダリノードとして動作するノードである。
For example, the base station 300 is a gNB. A gNB is a node that provides NR user plane and control plane protocol terminations towards the UE and is connected to the 5GC (5G Core Network) via the NG interface. Alternatively, base station 300 may be an en-gNB. An en-gNB is a node that provides NR user plane and control plane protocol termination for UEs and acts as a secondary node in EN-DC (E-UTRA-NR Dual Connectivity).
基地局300は、複数のノードを含んでもよい。当該複数のノードは、上記プロトコルスタックに含まれる上位レイヤ(higher layer)をホストする第1のノードと、当該プロトコルスタックに含まれる下位レイヤ(lower layer)をホストする第2のノードとを含んでもよい。上記上位レイヤは、RRCレイヤ、SDAPレイヤ及びPDCPレイヤを含んでもよく、上記下位レイヤは、RLCレイヤ、MACレイヤ及びPHYレイヤを含んでもよい。上記第1のノードは、CU(central unit)であってもよく、上記第2のノードは、DU(Distributed Unit)であってもよい。なお、上記複数のノードは、PHYレイヤの下位の処理を行う第3のノードを含んでもよく、上記第2のノードは、PHYレイヤの上位の処理を行ってもよい。当該第3のノードは、RU(Radio Unit)であってもよい。
The base station 300 may include multiple nodes. The plurality of nodes may include a first node that hosts a higher layer included in the protocol stack and a second node that hosts a lower layer included in the protocol stack. good. The upper layers may include an RRC layer, an SDAP layer and a PDCP layer, and the lower layers may include an RLC layer, a MAC layer and a PHY layer. The first node may be a CU (central unit), and the second node may be a DU (Distributed Unit). Note that the plurality of nodes may include a third node that performs lower-level processing of the PHY layer, and the second node may perform higher-level processing of the PHY layer. The third node may be an RU (Radio Unit).
あるいは、基地局300は、上記複数のノードのうちの1つであってもよく、上記複数のノードのうちの他のユニットと接続されていてもよい。
Alternatively, the base station 300 may be one of the plurality of nodes, or may be connected to another unit of the plurality of nodes.
基地局300は、IAB(Integrated Access and Backhaul)ドナー又はIABノードであってもよい。
The base station 300 may be an IAB (Integrated Access and Backhaul) donor or an IAB node.
(2)UE100及びUE200
UE100(UE100A及びUE100B)及びUE200の各々は、基地局300のカバレッジエリア内に位置する場合に、基地局300と通信する。UE100及びUE200の各々は、ダウンリンクで基地局300から信号を受信し、アップリンクで基地局300へ信号を送信する。換言すると、UE100及びUE200の各々は、Uuインターフェースを介して基地局300と通信する。 (2) UE100 and UE200
Each of UE 100 (UE 100A and UE 100B) and UE 200 communicates with base station 300 when located within the coverage area of base station 300 . Each of UE 100 and UE 200 receives signals from base station 300 on the downlink and transmits signals to base station 300 on the uplink. In other words, each of UE100 and UE200 communicates with base station 300 via the Uu interface.
UE100(UE100A及びUE100B)及びUE200の各々は、基地局300のカバレッジエリア内に位置する場合に、基地局300と通信する。UE100及びUE200の各々は、ダウンリンクで基地局300から信号を受信し、アップリンクで基地局300へ信号を送信する。換言すると、UE100及びUE200の各々は、Uuインターフェースを介して基地局300と通信する。 (2) UE100 and UE200
Each of UE 100 (
例えば、UE100及びUE200の各々は、上記プロトコルスタックを使用して基地局300と通信する。例えば、UE100及びUE200の各々は、上記プロトコルスタックを使用して他のUEと通信する。
For example, each of UE100 and UE200 communicates with base station 300 using the above protocol stack. For example, each of UE100 and UE200 communicates with other UEs using the above protocol stack.
また、UE100及びUE200の各々は、基地局300を経由せず直接的に他のUEと通信する。具体的には、UE100及びUE200の各々は、サイドリンクで他のUEと通信する。換言すると、UE100及びUE200の各々は、PC5インターフェースを介して他のUEと通信する。ここで、直接的な通信は、基地局300を経由しない経路での通信を指し、単一のリンクでの通信、及び複数のリンクからなる経路を介した通信を含む。複数のリンクからなる通信経路は、例えば、第1のUE100及び第2のUE100の両方と単一のリンクで通信可能な第3のUE100が通信の中継を行うことによって提供される。このような第3のUE100による中継を介した通信は一般にマルチホップ通信と呼ばれる。
Also, each of UE100 and UE200 communicates directly with another UE without going through base station 300. Specifically, each of UE100 and UE200 communicates with other UEs on sidelinks. In other words, each of UE100 and UE200 communicates with other UEs via the PC5 interface. Here, direct communication refers to communication through a route that does not go through the base station 300, and includes communication through a single link and communication through a route consisting of multiple links. A communication path consisting of a plurality of links is provided, for example, by relaying communications by a third UE 100 capable of communicating with both the first UE 100 and the second UE 100 via a single link. Such communication via relay by the third UE 100 is generally called multi-hop communication.
とりわけ、UE100(例えばUE100A)は、サイドリンクリソースアロケーションモード2で動作する。即ち、UE100Aは、サイドリンク用のリソースプール内の無線リソースを選択し、選択した当該無線リソースを使用して、サイドリンクで信号を送信する。例えば、UE100Aは、サイドリンクで他のUE100(例えばUE100B)へ信号を送信する。
Above all, the UE 100 (eg, UE 100A) operates in sidelink resource allocation mode 2. That is, the UE 100A selects a radio resource within the sidelink resource pool, and uses the selected radio resource to transmit a signal on the sidelink. For example, UE 100A transmits a signal to other UE 100 (for example, UE 100B) on the sidelink.
なお、UE100及びUE200の各々は、サイドリンクとは別の通信方式を用いて他のUEと直接的に通信してもよい。例えば、UE100及びUE200の各々は、Wi-Fi(登録商標)等の無線LAN(Local Area Network)又はBluetooth(登録商標)若しくはZigbee(登録商標)等の無線PAN(Personal Area Network)等を用いて他のUEと通信してもよい。これらの通信方式を用いる場合も、UE100及びUE200の各々は、中継を含むマルチホップ通信を用いて他のUEと通信してもよい。
It should be noted that each of UE100 and UE200 may directly communicate with another UE using a communication scheme different from the sidelink. For example, each of the UE 100 and UE 200 uses a wireless LAN (Local Area Network) such as Wi-Fi (registered trademark) or a wireless PAN (Personal Area Network) such as Bluetooth (registered trademark) or Zigbee (registered trademark). It may communicate with other UEs. Even when these communication schemes are used, each of UE100 and UE200 may communicate with other UEs using multi-hop communication including relay.
<1-2.ユーザ機器の構成>
図2及び図3を参照して、本開示の第1の実施形態に係るUE100の構成の例を説明する。なお、説明は省略するが、UE200の構成もUE100の構成と実質的に同一である。 <1-2. User device configuration>
An example of the configuration of theUE 100 according to the first embodiment of the present disclosure will be described with reference to FIGS. 2 and 3. FIG. Although the description is omitted, the configuration of the UE200 is substantially the same as the configuration of the UE100.
図2及び図3を参照して、本開示の第1の実施形態に係るUE100の構成の例を説明する。なお、説明は省略するが、UE200の構成もUE100の構成と実質的に同一である。 <1-2. User device configuration>
An example of the configuration of the
(1)機能構成
まず、図2を参照して、本開示の実施形態に係るUE100の機能構成の例を説明する。図2を参照すると、UE100は、無線通信部110、記憶部120及び処理部130を備える。 (1) Functional Configuration First, an example of the functional configuration of theUE 100 according to the embodiment of the present disclosure will be described with reference to FIG. Referring to FIG. 2, the UE 100 includes a wireless communication unit 110, a storage unit 120 and a processing unit .
まず、図2を参照して、本開示の実施形態に係るUE100の機能構成の例を説明する。図2を参照すると、UE100は、無線通信部110、記憶部120及び処理部130を備える。 (1) Functional Configuration First, an example of the functional configuration of the
無線通信部110は、信号を無線で送受信する。例えば、無線通信部110は、基地局からの信号を受信し、基地局への信号を送信する。例えば、無線通信部110は、他のUEからの信号を受信し、他のUEへの信号を送信する。
The wireless communication unit 110 wirelessly transmits and receives signals. For example, the wireless communication unit 110 receives signals from base stations and transmits signals to the base stations. For example, the radio communication unit 110 receives signals from other UEs and transmits signals to other UEs.
記憶部120は、様々な情報を記憶する。
The storage unit 120 stores various information.
処理部130は、UE100の様々な機能を提供する。処理部130は、情報取得部131及び通信処理部133を含む。なお、処理部130は、これらの構成要素以外の他の構成要素をさらに含み得る。即ち、処理部130は、これらの構成要素の動作以外の動作も行い得る。情報取得部131及び通信処理部133の具体的な動作は、後に詳細に説明する。
The processing unit 130 provides various functions of the UE 100. The processing unit 130 includes an information acquisition unit 131 and a communication processing unit 133 . Note that the processing unit 130 may further include components other than these components. That is, the processing unit 130 can perform operations other than those of these components. Specific operations of the information acquisition unit 131 and the communication processing unit 133 will be described later in detail.
例えば、処理部130(通信処理部133)は、無線通信部110を介して基地局(例えば、基地局300)又は他のUE(例えば、UE200)と通信する。
For example, the processing unit 130 (communication processing unit 133) communicates with the base station (eg, base station 300) or another UE (eg, UE 200) via the wireless communication unit 110.
(2)ハードウェア構成
次に、図3を参照して、本開示の実施形態に係るUE100のハードウェア構成の例を説明する。図3を参照すると、UE100は、アンテナ181、RF(radio frequency)回路183、プロセッサ185、メモリ187及びストレージ189を備える。 (2) Hardware Configuration Next, an example of the hardware configuration of theUE 100 according to the embodiment of the present disclosure will be described with reference to FIG. Referring to FIG. 3, UE 100 comprises antenna 181 , RF (radio frequency) circuitry 183 , processor 185 , memory 187 and storage 189 .
次に、図3を参照して、本開示の実施形態に係るUE100のハードウェア構成の例を説明する。図3を参照すると、UE100は、アンテナ181、RF(radio frequency)回路183、プロセッサ185、メモリ187及びストレージ189を備える。 (2) Hardware Configuration Next, an example of the hardware configuration of the
アンテナ181は、信号を電波に変換し、当該電波を空間に放射する。また、アンテナ181は、空間における電波を受信し、当該電波を信号に変換する。アンテナ181は、送信アンテナ及び受信アンテナを含んでもよく、又は、送受信用の単一のアンテナであってもよい。アンテナ181は、指向性アンテナであってもよく、複数のアンテナ素子を含んでもよい。
Antenna 181 converts a signal into radio waves and radiates the radio waves into space. Also, the antenna 181 receives radio waves in space and converts the radio waves into signals. Antenna 181 may include a transmit antenna and a receive antenna, or may be a single antenna for transmission and reception. Antenna 181 may be a directional antenna and may include multiple antenna elements.
RF回路183は、アンテナ181を介して送受信される信号のアナログ処理を行う。RF回路183は、高周波フィルタ、増幅器、変調器及びローパスフィルタ等を含んでもよい。
The RF circuit 183 performs analog processing of signals transmitted and received via the antenna 181 . RF circuitry 183 may include high frequency filters, amplifiers, modulators, low pass filters, and the like.
プロセッサ185は、アンテナ181及びRF回路183を介して送受信される信号のデジタル処理を行う。当該デジタル処理は、RANのプロトコルスタックの処理を含む。プロセッサ185は、複数のプロセッサを含んでもよく、又は、単一のプロセッサであってもよい。当該複数のプロセッサは、上記デジタル処理を行うベースバンドプロセッサと、他の処理を行う1つ以上のプロセッサとを含んでもよい。
The processor 185 performs digital processing of signals transmitted and received via the antenna 181 and the RF circuit 183. The digital processing includes processing of the protocol stack of the RAN. Processor 185 may include multiple processors or may be a single processor. The multiple processors may include a baseband processor that performs the digital processing and one or more processors that perform other processing.
メモリ187は、プロセッサ185により実行されるプログラム、当該プログラムに関するパラメータ、及び、当該プログラムに関するデータを記憶する。メモリ187は、ROM(Read Only Memory)、EPROM(Erasable Programmable Read Only Memory)、EEPROM(Electrically Erasable Programmable Read Only Memory)、RAM(Random Access Memory)及びフラッシュメモリの少なくとも1つを含んでもよい。メモリ187の全部又は一部は、プロセッサ185内に含まれていてもよい。
The memory 187 stores programs executed by the processor 185, parameters related to the programs, and data related to the programs. The memory 187 may include at least one of ROM (Read Only Memory), EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), RAM (Random Access Memory), and flash memory. All or part of memory 187 may be included within processor 185 .
ストレージ189は、様々な情報を記憶する。ストレージ189は、SSD(Solid State Drive)及びHDD(Hard Disc Drive)の少なくとも1つを含んでもよい。
The storage 189 stores various information. The storage 189 may include at least one of SSD (Solid State Drive) and HDD (Hard Disc Drive).
無線通信部110は、アンテナ181及びRF回路183により実装されてもよい。記憶部120は、ストレージ189により実装されてもよい。処理部130は、プロセッサ185及びメモリ187により実装されてもよい。
The wireless communication unit 110 may be implemented by an antenna 181 and an RF circuit 183. Storage unit 120 may be implemented by storage 189 . Processing unit 130 may be implemented by processor 185 and memory 187 .
処理部130は、プロセッサ185及びメモリ187を含むSoC(System on Chip)により実装されてもよい。当該SoCは、RF回路183を含んでもよく、無線通信部110も、当該SoCにより実装されてもよい。
The processing unit 130 may be implemented by an SoC (System on Chip) including a processor 185 and a memory 187. The SoC may include RF circuitry 183 and the wireless communication unit 110 may also be implemented by the SoC.
以上のハードウェア構成を考慮すると、UE100は、プログラムを記憶するメモリ(即ち、メモリ187)と、当該プログラムを実行可能な1つ以上のプロセッサ(即ち、プロセッサ185)とを備えてもよく、当該1つ以上のプロセッサは、上記プログラムを実行して、処理部130の動作を行ってもよい。上記プログラムは、処理部130の動作をプロセッサに実行させるためのプログラムであってもよい。
Considering the above hardware configuration, the UE 100 may include a memory that stores the program (ie, memory 187) and one or more processors that can execute the program (ie, processor 185). One or more processors may execute the programs described above to perform the operations of the processing unit 130 . The program may be a program for causing the processor to execute the operation of the processing unit 130 .
<1-3.基地局の構成>
図4及び図5を参照して、本開示の第1の実施形態に係る基地局300の構成の例を説明する。 <1-3. Configuration of Base Station>
An example of the configuration of thebase station 300 according to the first embodiment of the present disclosure will be described with reference to FIGS. 4 and 5. FIG.
図4及び図5を参照して、本開示の第1の実施形態に係る基地局300の構成の例を説明する。 <1-3. Configuration of Base Station>
An example of the configuration of the
(1)機能構成
まず、図4を参照して、本開示の第1の実施形態に係る基地局300の機能構成の例を説明する。図4を参照すると、基地局300は、無線通信部310、ネットワーク通信部320、記憶部330及び処理部340を備える。 (1) Functional Configuration First, an example of the functional configuration of thebase station 300 according to the first embodiment of the present disclosure will be described with reference to FIG. Referring to FIG. 4, the base station 300 includes a wireless communication unit 310, a network communication unit 320, a storage unit 330 and a processing unit 340. FIG.
まず、図4を参照して、本開示の第1の実施形態に係る基地局300の機能構成の例を説明する。図4を参照すると、基地局300は、無線通信部310、ネットワーク通信部320、記憶部330及び処理部340を備える。 (1) Functional Configuration First, an example of the functional configuration of the
無線通信部310は、信号を無線で送受信する。例えば、無線通信部310は、UEからの信号を受信し、UEへの信号を送信する。
The wireless communication unit 310 wirelessly transmits and receives signals. For example, the radio communication unit 310 receives signals from UEs and transmits signals to UEs.
ネットワーク通信部320は、ネットワークから信号を受信し、ネットワークへ信号を送信する。
The network communication unit 320 receives signals from the network and transmits signals to the network.
記憶部330は、基地局300のために様々な情報を記憶する。
The storage unit 330 stores various information for the base station 300.
処理部340は、基地局300の様々な機能を提供する。処理部340は、情報取得部341、第1通信処理部343及び第2通信処理部345を含む。なお、処理部340は、これらの構成要素以外の他の構成要素をさらに含み得る。即ち、処理部340は、これらの構成要素の動作以外の動作も行い得る。情報取得部341、第1通信処理部343及び第2通信処理部345の具体的な動作は、後に詳細に説明する。
The processing unit 340 provides various functions of the base station 300. The processing unit 340 includes an information acquisition unit 341 , a first communication processing unit 343 and a second communication processing unit 345 . Note that the processing unit 340 may further include other components other than these components. That is, the processing unit 340 may perform operations other than those of these components. Specific operations of the information acquisition unit 341, the first communication processing unit 343, and the second communication processing unit 345 will be described in detail later.
例えば、処理部340(第1通信処理部343)は、無線通信部310を介してUE(例えば、UE100又はUE200)と通信する。例えば、処理部340(第2通信処理部345)は、ネットワーク通信部320を介して他のノード(例えば、コアネットワーク内のネットワークノード又は他の基地局)と通信する。
For example, the processing unit 340 (first communication processing unit 343) communicates with the UE (eg, UE100 or UE200) via the wireless communication unit 310. For example, the processing unit 340 (second communication processing unit 345) communicates with other nodes (for example, network nodes in the core network or other base stations) via the network communication unit 320. FIG.
(2)ハードウェア構成
次に、図5を参照して、本開示の第1の実施形態に係る基地局300のハードウェア構成の例を説明する。図5を参照すると、基地局300は、アンテナ381、RF回路383、ネットワークインターフェース385、プロセッサ387、メモリ389及びストレージ391を備える。 (2) Hardware Configuration Next, an example hardware configuration of thebase station 300 according to the first embodiment of the present disclosure will be described with reference to FIG. Referring to FIG. 5, base station 300 comprises antenna 381 , RF circuitry 383 , network interface 385 , processor 387 , memory 389 and storage 391 .
次に、図5を参照して、本開示の第1の実施形態に係る基地局300のハードウェア構成の例を説明する。図5を参照すると、基地局300は、アンテナ381、RF回路383、ネットワークインターフェース385、プロセッサ387、メモリ389及びストレージ391を備える。 (2) Hardware Configuration Next, an example hardware configuration of the
アンテナ381は、信号を電波に変換し、当該電波を空間に放射する。また、アンテナ381は、空間における電波を受信し、当該電波を信号に変換する。アンテナ381は、送信アンテナ及び受信アンテナを含んでもよく、又は、送受信用の単一のアンテナであってもよい。アンテナ381は、指向性アンテナであってもよく、複数のアンテナ素子を含んでもよい。
The antenna 381 converts the signal into radio waves and radiates the radio waves into space. Also, the antenna 381 receives radio waves in space and converts the radio waves into signals. Antenna 381 may include a transmit antenna and a receive antenna, or may be a single antenna for transmission and reception. Antenna 381 may be a directional antenna and may include multiple antenna elements.
RF回路383は、アンテナ381を介して送受信される信号のアナログ処理を行う。RF回路383は、高周波フィルタ、増幅器、変調器及びローパスフィルタ等を含んでもよい。
The RF circuit 383 performs analog processing of signals transmitted and received via the antenna 381 . RF circuitry 383 may include high frequency filters, amplifiers, modulators, low pass filters, and the like.
ネットワークインターフェース385は、例えばネットワークアダプタであり、ネットワークへ信号を送信し、ネットワークから信号を受信する。
The network interface 385 is, for example, a network adapter, which transmits signals to and receives signals from the network.
プロセッサ387は、アンテナ381及びRF回路383を介して送受信される信号のデジタル処理を行う。当該デジタル処理は、RANのプロトコルスタックの処理を含む。プロセッサ387は、ネットワークインターフェース385を介して送受信される信号の処理も行う。プロセッサ387は、複数のプロセッサを含んでもよく、又は、単一のプロセッサであってもよい。当該複数のプロセッサは、上記デジタル処理を行うベースバンドプロセッサと、他の処理を行う1つ以上のプロセッサとを含んでもよい。
The processor 387 performs digital processing of signals transmitted and received via the antenna 381 and the RF circuit 383. The digital processing includes processing of the protocol stack of the RAN. Processor 387 also processes signals sent and received via network interface 385 . Processor 387 may include multiple processors or may be a single processor. The multiple processors may include a baseband processor that performs the digital processing and one or more processors that perform other processing.
メモリ389は、プロセッサ387により実行されるプログラム、当該プログラムに関するパラメータ、及び、当該プログラムに関するデータを記憶する。メモリ389は、ROM、EPROM、EEPROM、RAM及びフラッシュメモリの少なくとも1つを含んでもよい。メモリ389の全部又は一部は、プロセッサ387内に含まれていてもよい。
The memory 389 stores programs executed by the processor 387, parameters related to the programs, and data related to the programs. Memory 389 may include at least one of ROM, EPROM, EEPROM, RAM and flash memory. All or part of memory 389 may be included within processor 387 .
ストレージ391は、様々な情報を記憶する。ストレージ391は、SSD及びHDDの少なくとも1つを含んでもよい。
The storage 391 stores various information. The storage 391 may include at least one of SSD and HDD.
無線通信部310は、アンテナ381及びRF回路383により実装されてもよい。ネットワーク通信部320は、ネットワークインターフェース385により実装されてもよい。記憶部330は、ストレージ391により実装されてもよい。処理部340は、プロセッサ387及びメモリ389により実装されてもよい
The wireless communication unit 310 may be implemented by an antenna 381 and an RF circuit 383. Network communication unit 320 may be implemented by network interface 385 . Storage unit 330 may be implemented by storage 391 . Processing unit 340 may be implemented by processor 387 and memory 389
処理部340の一部又は全部は、仮想化されていてもよい。換言すると、処理部340の一部又は全部は、仮想マシンとして実装されてもよい。この場合に、処理部340の一部又は全部は、プロセッサ及びメモリ等を含む物理マシン(即ち、ハードウェア)及びハイパーバイザ上で仮想マシンとして動作してもよい。
Part or all of the processing unit 340 may be virtualized. In other words, part or all of the processing unit 340 may be implemented as a virtual machine. In this case, part or all of the processing unit 340 may operate as a virtual machine on a physical machine (that is, hardware) including a processor, memory, etc. and a hypervisor.
以上のハードウェア構成を考慮すると、基地局300は、プログラムを記憶するメモリ(即ち、メモリ389)と、当該プログラムを実行可能な1つ以上のプロセッサ(即ち、プロセッサ387)とを備えてもよく、当該1つ以上のプロセッサは、上記プログラムを実行して、処理部340の動作を行ってもよい。上記プログラムは、処理部340の動作をプロセッサに実行させるためのプログラムであってもよい。
Considering the above hardware configuration, the base station 300 may include a memory (ie, memory 389) for storing programs and one or more processors (ie, processor 387) capable of executing the programs. , the one or more processors may execute the program to perform the operation of the processing unit 340 . The program may be a program for causing the processor to execute the operation of the processing unit 340 .
<1-4.動作例>
図6、図7を参照して、本開示の第1の実施形態に係るUE100及び基地局300の動作の例を説明する。本実施形態では、UE100は、送信UE、代表UE、協調UE又はそれらのいずれか2つ若しくは全てとして動作し得る。 <1-4. Operation example>
An example of operations of theUE 100 and the base station 300 according to the first embodiment of the present disclosure will be described with reference to FIGS. 6 and 7. FIG. In this embodiment, the UE 100 may act as a transmitting UE, a representative UE, a coordinating UE, or any two or all of them.
図6、図7を参照して、本開示の第1の実施形態に係るUE100及び基地局300の動作の例を説明する。本実施形態では、UE100は、送信UE、代表UE、協調UE又はそれらのいずれか2つ若しくは全てとして動作し得る。 <1-4. Operation example>
An example of operations of the
(1)送信UEの動作
送信UEとして動作するUE100(送信UE100とも称する。)は、基地局300へ送信されるべき協調送信データを協調UEとして動作するUE100(協調UE100とも称する。)へ送信する。また、送信UE100は、ユーザ機器情報として協調UE100のリスト(協調UEリストとも称する。)を取得する。 (1) Operation of transmitting UE UE 100 (also called transmitting UE 100) operating as a transmitting UE transmits cooperative transmission data to be transmitted tobase station 300 to UE 100 operating as a cooperative UE (also called cooperative UE 100). . Also, the transmitting UE 100 acquires a list of cooperative UEs 100 (also referred to as a cooperative UE list) as user equipment information.
送信UEとして動作するUE100(送信UE100とも称する。)は、基地局300へ送信されるべき協調送信データを協調UEとして動作するUE100(協調UE100とも称する。)へ送信する。また、送信UE100は、ユーザ機器情報として協調UE100のリスト(協調UEリストとも称する。)を取得する。 (1) Operation of transmitting UE UE 100 (also called transmitting UE 100) operating as a transmitting UE transmits cooperative transmission data to be transmitted to
-協調UEリストの取得
協調UEリストは、直接通信で協調送信データを送信又は受信可能な2つ以上のUE100であって、協調的に協調送信データを基地局300へ送信可能な2つ以上のUE100(即ち、2つ以上の協調UE100)を示すUE情報である。例えば、協調UEリストは、送信UE100が協調送信データを送信可能な2つ以上の協調UE100を示す。より具体的には、協調UEリストは、協調UE100の識別子のリストである。直接通信は、サイドリンク通信である。 - Acquisition of a coordinated UE list A coordinated UE list is two ormore UEs 100 capable of transmitting or receiving coordinated transmission data in direct communication, and two or more UEs 100 capable of cooperatively transmitting coordinated transmission data to the base station 300. UE information indicating a UE 100 (ie, two or more cooperating UEs 100). For example, the coordinated UE list indicates two or more coordinated UEs 100 to which the transmitting UE 100 can transmit coordinated transmission data. More specifically, the cooperating UE list is a list of identifiers of cooperating UEs 100 . Direct communication is sidelink communication.
協調UEリストは、直接通信で協調送信データを送信又は受信可能な2つ以上のUE100であって、協調的に協調送信データを基地局300へ送信可能な2つ以上のUE100(即ち、2つ以上の協調UE100)を示すUE情報である。例えば、協調UEリストは、送信UE100が協調送信データを送信可能な2つ以上の協調UE100を示す。より具体的には、協調UEリストは、協調UE100の識別子のリストである。直接通信は、サイドリンク通信である。 - Acquisition of a coordinated UE list A coordinated UE list is two or
送信UE100は、直接通信を用いて協調UEリストを取得する。具体的には、送信UE100は、サイドリンク通信における制御情報を用いて協調UEリストを取得する。例えば、送信UE100は、サイドリンクでのセンシング等を用いてサイドリンク通信可能な協調UE100を識別する。また、送信UE100は、サイドリンク通信における制御情報とは別の情報をサイドリンクで送受信することで協調UEリストを取得してもよい。
The transmitting UE 100 acquires the cooperating UE list using direct communication. Specifically, the transmitting UE 100 acquires a cooperative UE list using control information in sidelink communication. For example, the transmitting UE 100 identifies the cooperative UE 100 capable of sidelink communication using sidelink sensing or the like. Also, the transmitting UE 100 may acquire the cooperative UE list by transmitting and receiving information other than control information in sidelink communication on the sidelink.
さらに、協調UEリストにより示される2つ以上の協調UE100は、UE100の特定のグループに属してもよい。具体的には、当該特定のグループは、直接通信が安定しているUE100のグループである。例えば、直接通信が安定しているUE100のグループは、グループ情報により示される。グループ情報は、送信UE100に記憶されていてもよく、他のUE100又は基地局300から受信されてもよい。例えば、グループ情報は、群で移動する移動体(例えば、車両又はドローン等の飛行体)に搭載されるUE100のグループを示す。これにより、協調送信データを送信可能なUE100を協調UE100としてより確実に選択することができる。換言すると、送信UE100とのサイドリンク通信が不安定となるUE100が協調UE100として選択されることを抑制できる。
Furthermore, two or more cooperating UEs 100 indicated by the cooperating UE list may belong to a specific group of UEs 100. Specifically, the specific group is a group of UEs 100 with which direct communication is stable. For example, a group of UEs 100 with which direct communication is stable is indicated by group information. Group information may be stored in the transmitting UE 100 or may be received from other UEs 100 or base stations 300 . For example, the group information indicates a group of UEs 100 mounted on mobile objects (for example, vehicles or flying objects such as drones) that move in groups. This makes it possible to more reliably select UE 100 capable of transmitting cooperative transmission data as cooperative UE 100 . In other words, it is possible to prevent the UE 100 whose sidelink communication with the transmitting UE 100 becomes unstable from being selected as the cooperative UE 100 .
例えば、送信UE100は、サイドリンク通信とグループ情報を用いて協調UEリストを取得する。送信UE100は、送信UE100とサイドリンクで通信可能なUE100であって、グループ情報が示すグループに属するUE100を、協調UE100として示す協調UEリストを取得する。
For example, the transmitting UE 100 acquires a cooperative UE list using sidelink communication and group information. The transmitting UE 100 acquires a coordinated UE list indicating, as coordinated UEs 100, UEs 100 that can communicate with the transmitting UE 100 via the sidelink and that belong to the group indicated by the group information.
なお、グループ情報は、サイドリンク通信を用いて取得されてもよい。具体的には、グループ情報は、サイドリンク通信の状況に基づき取得されてよい。例えば、過去のサイドリンク通信における無線リソースの使用期間又は頻度等が所定の条件を満たすUE100を示すグループ情報が取得されてよい。即ち、サイドリンク通信の状況からサイドリンク通信が安定していると推測されるUE100を示すグループ情報が取得される。また、取得されたグループ情報は、基地局300へ送信されてもよい。さらに、送信UE100は、単一のサイドリンク通信を介して通信可能なUE100(隣接UE100とも称する。)から、隣接UE100による中継を介して安定的に通信可能なUE100のリストを取得してもよい。このリスト内のUE100が、マルチホップ通信が安定していると推測されるUE100としてグループ情報に含まれてもよい。
Note that the group information may be acquired using sidelink communication. Specifically, the group information may be obtained based on the status of sidelink communication. For example, group information indicating the UE 100 that satisfies a predetermined condition such as the usage period or frequency of radio resources in the past sidelink communication may be acquired. That is, the group information indicating the UE 100 whose sidelink communication is estimated to be stable from the state of sidelink communication is acquired. Also, the acquired group information may be transmitted to the base station 300 . Furthermore, the transmitting UE 100 may acquire a list of UEs 100 that can communicate stably via relay by the neighboring UEs 100 from the UEs 100 that can communicate via a single sidelink communication (also referred to as neighboring UEs 100). . UEs 100 in this list may be included in the group information as UEs 100 that are assumed to have stable multihop communication.
-送信割当
協調UEリストが示す2つ以上の協調UE100がそれぞれ送信すべき協調送信データは、協調送信データ全体の部分である。送信割当情報は、2つ以上の協調UE100がそれぞれ送信すべき協調送信データ全体の部分を示す。 -Transmission Allocation Coordinated transmission data to be transmitted by two or more cooperatingUEs 100 indicated by the cooperating UE list is part of the entire coordinated transmission data. The transmission allocation information indicates the portion of the entire coordinated transmission data that two or more coordinated UEs 100 should each transmit.
協調UEリストが示す2つ以上の協調UE100がそれぞれ送信すべき協調送信データは、協調送信データ全体の部分である。送信割当情報は、2つ以上の協調UE100がそれぞれ送信すべき協調送信データ全体の部分を示す。 -Transmission Allocation Coordinated transmission data to be transmitted by two or more cooperating
例えば、協調送信データ全体の第1の部分が協調UE100-1により送信され、第1の部分とは異なる第2の部分が協調UE100-2により送信される。この場合、送信割当情報は、協調UE100-1への割当として第1の部分を示し、協調UE100-2への割当として第2の部分を示す。例えば、送信割当情報は、割当のパターンの識別子であってもよく、割当の量又は割合を示してもよい。
For example, a first part of the entire cooperative transmission data is transmitted by the cooperative UE 100-1, and a second part different from the first part is transmitted by the cooperative UE 100-2. In this case, the transmission allocation information indicates the first part as allocation to cooperative UE 100-1 and the second part as allocation to cooperative UE 100-2. For example, the transmission quota information may be an identifier for the pattern of allocation and may indicate the amount or percentage of allocation.
なお、2つ以上の協調UE100がそれぞれ送信すべき協調送信データ全体の部分は重複していてもよい。例えば、上記第1の部分と上記第2の部分とは重複してもよい。また、2つ以上の協調UE100がそれぞれ送信すべき協調送信データは協調送信データ全体であってもよい。また、代表UE100が送信割当情報を取得してもよい。
It should be noted that parts of the entire cooperative transmission data to be transmitted by two or more cooperative UEs 100 may overlap. For example, the first portion and the second portion may overlap. Also, the coordinated transmission data to be transmitted by two or more coordinated UEs 100 may be the entire coordinated transmission data. Also, the representative UE 100 may acquire transmission allocation information.
また、送信割当情報は、2つ以上の協調UE100の通信状況又は処理負荷に基づいて決定されてもよい。例えば、送信割当情報は、2つ以上の協調UE100の通信の量、期間、頻度、遅延又は接続の安定度に基づいてもよい。また、送信割当情報は、2つ以上の協調UE100の処理の量、時間又は遅延に基づいてもよい。
Also, the transmission allocation information may be determined based on the communication status or processing load of two or more cooperative UEs 100. For example, the transmission allocation information may be based on the amount, duration, frequency, delay or connection stability of two or more cooperating UEs 100 communicating. Transmission allocation information may also be based on the amount of processing, time or delay of two or more cooperating UEs 100 .
-協調送信データの送信
送信UE100は、協調UE100へ協調送信データを直接通信で共有する。具体的には、送信UE100(情報取得部131)は、協調UEリストを取得する。送信UE100(通信処理部133)は、当該協調UEリストが示す2つ以上の協調UE100のうちの少なくとも1つの協調UE100へ協調送信データをサイドリンクで送信する。なお、送信UE100が協調UEとしても動作する場合は、協調UEリストは、送信UE100がサイドリンクで通信可能な1つ以上の協調UE100を示す情報と送信UE100を示す情報とを別に含んでもよい。即ち、送信UE100は、1つ以上の協調UE100へ協調送信データを送信してもよい。 - Transmission of cooperative transmission data The transmittingUE 100 shares cooperative transmission data with the cooperative UE 100 by direct communication. Specifically, transmitting UE 100 (information acquisition unit 131) acquires a cooperative UE list. The transmitting UE 100 (communication processing unit 133) transmits cooperative transmission data to at least one cooperative UE 100 out of two or more cooperative UEs 100 indicated by the cooperative UE list, via the sidelink. Note that when the transmitting UE 100 also operates as a cooperating UE, the coordinating UE list may separately include information indicating one or more cooperating UEs 100 with which the transmitting UE 100 can communicate on the sidelink and information indicating the transmitting UE 100. That is, the transmitting UE 100 may transmit cooperative transmission data to one or more cooperative UEs 100 .
送信UE100は、協調UE100へ協調送信データを直接通信で共有する。具体的には、送信UE100(情報取得部131)は、協調UEリストを取得する。送信UE100(通信処理部133)は、当該協調UEリストが示す2つ以上の協調UE100のうちの少なくとも1つの協調UE100へ協調送信データをサイドリンクで送信する。なお、送信UE100が協調UEとしても動作する場合は、協調UEリストは、送信UE100がサイドリンクで通信可能な1つ以上の協調UE100を示す情報と送信UE100を示す情報とを別に含んでもよい。即ち、送信UE100は、1つ以上の協調UE100へ協調送信データを送信してもよい。 - Transmission of cooperative transmission data The transmitting
例えば、送信UE100(情報取得部131)は、送信UE100内で協調送信データを取得する。送信UE100(通信処理部133)は、取得された協調送信データをサイドリンクで少なくとも1つの協調UE100へ送信する。例えば、送信UE100は、記憶部120に記憶されるデータ又は送信UE100にて動作するアプリケーション等の上位レイヤから受け取るデータを取得する。送信UE100は、取得されたデータを協調UEリストが示す少なくとも1つの協調UE100へ送信する。
For example, the transmitting UE 100 (information acquisition unit 131) acquires cooperative transmission data within the transmitting UE 100. The transmitting UE 100 (communication processing unit 133) transmits the acquired cooperative transmission data to at least one cooperative UE 100 on the sidelink. For example, the transmitting UE 100 acquires data stored in the storage unit 120 or data received from an upper layer such as an application running on the transmitting UE 100 . The transmitting UE 100 transmits the acquired data to at least one cooperating UE 100 indicated by the cooperating UE list.
また、送信UE100は、送信割当情報を協調UE100へ送信する。例えば、送信UE100は、協調送信データとともに送信割当情報を協調UE100へ送信する。なお、送信割当情報は、協調送信データとは別に協調UE100へ送信されてもよい。例えば、送信割当情報を含む制御情報が協調UE100へ送信されてよい。
Also, the transmitting UE 100 transmits transmission allocation information to the cooperative UE 100. For example, the transmitting UE 100 transmits transmission allocation information to the cooperative UE 100 together with cooperative transmission data. The transmission allocation information may be transmitted to the cooperative UE 100 separately from the cooperative transmission data. For example, control information including transmission allocation information may be transmitted to the cooperative UE 100 .
(2)代表UEの動作
代表UE100は、2つ以上の協調UE100の代表として協調UEリストを基地局300へ送信する。 (2) Operation of representative UE Therepresentative UE 100 transmits a cooperating UE list to the base station 300 as a representative of two or more cooperating UEs 100 .
代表UE100は、2つ以上の協調UE100の代表として協調UEリストを基地局300へ送信する。 (2) Operation of representative UE The
-協調UEリストの送信
代表UE100は、協調UEリストを基地局300へ送信する。具体的には、代表UE100(情報取得部131)は、協調UEリストを取得する。代表UE100(通信処理部133)は、協調UEリストを含む制御情報を基地局300へ送信する。 -Transmission of coordinated UE list Therepresentative UE 100 transmits the coordinated UE list to the base station 300 . Specifically, the representative UE 100 (information acquisition unit 131) acquires a cooperative UE list. The representative UE 100 (communication processing unit 133 ) transmits control information including the cooperative UE list to the base station 300 .
代表UE100は、協調UEリストを基地局300へ送信する。具体的には、代表UE100(情報取得部131)は、協調UEリストを取得する。代表UE100(通信処理部133)は、協調UEリストを含む制御情報を基地局300へ送信する。 -Transmission of coordinated UE list The
例えば、代表UE100(通信処理部133)は、協調UEリストを含むUCI(Uplink Control Information)を基地局300へ送信する。あるいは、代表UE100(通信処理部133)は、協調UEリストを含むMAC CE(MAC Control Element)、又はRRCメッセージを基地局300へ送信する。
For example, the representative UE 100 (communication processing unit 133) transmits UCI (Uplink Control Information) including a cooperative UE list to the base station 300. Alternatively, the representative UE 100 (communication processing unit 133) transmits to the base station 300 a MAC Control Element (MAC Control Element) containing the coordinated UE list or an RRC message.
(3)協調UEの動作
協調UE100は、協調送信データを送信UE100から受信し、受信した協調送信データを他の協調UE100と協調して基地局300へ送信する。 (3) Operation of Cooperative UE Thecooperative UE 100 receives cooperative transmission data from the transmitting UE 100 and transmits the received cooperative transmission data to the base station 300 in cooperation with other cooperative UEs 100 .
協調UE100は、協調送信データを送信UE100から受信し、受信した協調送信データを他の協調UE100と協調して基地局300へ送信する。 (3) Operation of Cooperative UE The
-協調送信データを受信
協調UE100は、協調送信データを送信UE100から直接通信で受信する。具体的には、協調UE100(通信処理部133)は、協調送信データを送信UE100からサイドリンクで受信する。 - Receiving cooperative transmission data Thecooperative UE 100 receives cooperative transmission data from the transmitting UE 100 by direct communication. Specifically, the cooperative UE 100 (communication processing unit 133) receives the cooperative transmission data from the transmitting UE 100 on the sidelink.
協調UE100は、協調送信データを送信UE100から直接通信で受信する。具体的には、協調UE100(通信処理部133)は、協調送信データを送信UE100からサイドリンクで受信する。 - Receiving cooperative transmission data The
また、協調UE100は、送信割当情報を送信UE100から直接通信で受信する。例えば、協調UE100(通信処理部133)は、送信割当情報を含む制御情報を送信UE100からサイドリンクで受信する。協調UE100(情報取得部131)は、制御情報から送信割当情報を取得する。
Also, the cooperative UE 100 receives the transmission allocation information from the transmitting UE 100 by direct communication. For example, the cooperative UE 100 (communication processing unit 133) receives control information including transmission allocation information from the transmitting UE 100 on the sidelink. The cooperative UE 100 (information acquisition unit 131) acquires transmission allocation information from control information.
-SRSの送信
協調UE100は、リファレンス信号を基地局300へ送信する。具体的には、協調UE100(通信処理部133)は、SRSを基地局300へ送信する。 - Transmission ofSRS Cooperative UE 100 transmits a reference signal to base station 300 . Specifically, cooperative UE 100 (communication processing unit 133 ) transmits SRS to base station 300 .
協調UE100は、リファレンス信号を基地局300へ送信する。具体的には、協調UE100(通信処理部133)は、SRSを基地局300へ送信する。 - Transmission of
-リソース割当情報の受信
協調UE100は、ULリソースを示すリソース割当情報を基地局300から受信する。具体的には、協調UE100(通信処理部133)は、リソース割当情報を含む制御情報を基地局300から受信する。協調UE100(情報取得部131)は、制御情報に含まれるリソース割当情報を取得する。 - Receiving resource allocation information Thecooperative UE 100 receives resource allocation information indicating UL resources from the base station 300 . Specifically, the cooperative UE 100 (communication processing unit 133 ) receives control information including resource allocation information from the base station 300 . The cooperative UE 100 (information acquisition unit 131) acquires resource allocation information included in control information.
協調UE100は、ULリソースを示すリソース割当情報を基地局300から受信する。具体的には、協調UE100(通信処理部133)は、リソース割当情報を含む制御情報を基地局300から受信する。協調UE100(情報取得部131)は、制御情報に含まれるリソース割当情報を取得する。 - Receiving resource allocation information The
また、協調UE100は、協調MIMOのための協調プリコーディングを基地局300から受信する。例えば、協調UE100(通信処理部133)は、協調プリコーディングを含む制御情報を基地局300から受信する。協調UE100(情報取得部131)は、制御情報に含まれる協調プリコーディングを取得する。なお、協調プリコーディングは、リソース割当情報が含む制御情報に含まれてもよい。
Also, the cooperative UE 100 receives cooperative precoding for cooperative MIMO from the base station 300 . For example, the cooperative UE 100 (communication processing unit 133) receives control information including cooperative precoding from the base station 300. FIG. The cooperative UE 100 (information acquisition unit 131) acquires cooperative precoding included in control information. Note that cooperative precoding may be included in control information included in resource allocation information.
-協調送信データの送信
協調UE100は、他の協調UE100と協調して協調送信データを基地局300へ送信する。 - Transmission of cooperative transmission data Acooperative UE 100 transmits cooperative transmission data to the base station 300 in cooperation with other cooperative UEs 100 .
協調UE100は、他の協調UE100と協調して協調送信データを基地局300へ送信する。 - Transmission of cooperative transmission data A
ここで、協調送信は、協調送信データを複数の協調UE100で共有し、送信することを意味する。あるいは、協調送信は、協調送信データを複数の協調UE100で共有し、同一の時間、周波数又は空間で送信することを意味してもよい。あるいは、協調送信は、協調送信データを複数の協調UE100で共有し、協調MIMOで送信することを意味してもよい。あるいは、後述の第2の実施形態のように、協調送信は、協調送信データを複数の協調UE100で共有し、複数の基地局へ送信することを意味してもよい。
Here, cooperative transmission means sharing and transmitting cooperative transmission data among a plurality of cooperative UEs 100 . Alternatively, cooperative transmission may mean sharing cooperative transmission data among a plurality of cooperative UEs 100 and transmitting in the same time, frequency, or space. Alternatively, cooperative transmission may mean sharing cooperative transmission data among a plurality of cooperative UEs 100 and transmitting with cooperative MIMO. Alternatively, as in the second embodiment described later, cooperative transmission may mean sharing cooperative transmission data among a plurality of cooperative UEs 100 and transmitting the data to a plurality of base stations.
例えば、協調UE100は、基地局300から受信されたリソース割当情報が示すULリソースを用いて協調送信データを基地局300へ送信する。協調プリコーディングが基地局300から受信される場合は、協調UE100は、受信された協調プリコーディングを用いて協調送信データを基地局300へ送信する。2つ以上の協調UE100それぞれが受信される協調プリコーディングを用いて協調送信データを送信することにより、協調MIMOが実現される。
For example, the coordinated UE 100 transmits coordinated transmission data to the base station 300 using UL resources indicated by resource allocation information received from the base station 300 . When cooperative precoding is received from base station 300, cooperative UE 100 transmits cooperative transmission data to base station 300 using the received cooperative precoding. Cooperative MIMO is achieved by transmitting cooperative transmission data using cooperative precoding that is received by two or more cooperative UEs 100 respectively.
(4)基地局の動作
基地局300は、協調UEリストを代表UE100から受信し、協調UEリストを用いてULリソースを協調UE100へ割り当て、協調送信データを協調UE100から受信する。 (4) Base StationOperations Base station 300 receives the coordinated UE list from representative UE 100 , allocates UL resources to coordinated UE 100 using the coordinated UE list, and receives coordinated transmission data from coordinated UE 100 .
基地局300は、協調UEリストを代表UE100から受信し、協調UEリストを用いてULリソースを協調UE100へ割り当て、協調送信データを協調UE100から受信する。 (4) Base Station
-協調UEリストの受信
基地局300は、協調UEリストを代表UE100から受信する。具体的には、基地局300(第1通信処理部343)は、協調UEリストを含む制御情報を代表UE100から受信する。基地局300(情報取得部341)は、制御情報に含まれる協調UEリストを取得する。取得された協調UEリストは、記憶部330に記憶される。 - Receipt of coordinated UE list Thebase station 300 receives the coordinated UE list from the representative UE 100 . Specifically, the base station 300 (first communication processing unit 343) receives control information including the cooperative UE list from the representative UE 100. The base station 300 (information acquisition unit 341) acquires the coordinated UE list included in the control information. The acquired cooperative UE list is stored in the storage unit 330 .
基地局300は、協調UEリストを代表UE100から受信する。具体的には、基地局300(第1通信処理部343)は、協調UEリストを含む制御情報を代表UE100から受信する。基地局300(情報取得部341)は、制御情報に含まれる協調UEリストを取得する。取得された協調UEリストは、記憶部330に記憶される。 - Receipt of coordinated UE list The
-SRSの受信
基地局300は、リファレンス信号をUE100から受信する。具体的には、基地局300(第1通信処理部343)は、協調UEリストにより示される2つ以上の協調UE100からそれぞれリファレンス信号を受信する。例えば、リファレンス信号は、SRSである。基地局300は、協調UE100から受信されるSRSからUL伝搬路を観測する。 - Reception of SRS Thebase station 300 receives the reference signal from the UE 100 . Specifically, the base station 300 (first communication processing unit 343) receives reference signals from two or more cooperating UEs 100 indicated by the cooperating UE list. For example, the reference signal is SRS. Base station 300 observes the UL channel from the SRS received from cooperative UE 100 .
基地局300は、リファレンス信号をUE100から受信する。具体的には、基地局300(第1通信処理部343)は、協調UEリストにより示される2つ以上の協調UE100からそれぞれリファレンス信号を受信する。例えば、リファレンス信号は、SRSである。基地局300は、協調UE100から受信されるSRSからUL伝搬路を観測する。 - Reception of SRS The
基地局300は、協調UE100以外のUE100から受信されるSRSから観測されるUL伝搬路の情報を、破棄する、又は協調UE100から受信されるSRSから観測されるUL伝搬路の情報とは別に記憶する。
The base station 300 discards the information on the UL channel observed from the SRS received from the UE 100 other than the cooperative UE 100, or stores it separately from the information on the UL channel observed from the SRS received from the cooperative UE 100. do.
-リソース割当情報の送信
基地局300は、協調送信のためのULリソースを示すリソース割当情報を協調UE100へ送信する。具体的には、基地局300(情報取得部341)は、リソース割当情報を取得する。基地局300(第1通信処理部343)は、リソース割当情報を含む制御情報を協調UEリストにより示される2つ以上の協調UE100へ送信する。 - Transmission of resource allocationinformation Base station 300 transmits resource allocation information indicating UL resources for cooperative transmission to cooperative UE 100 . Specifically, the base station 300 (information acquisition unit 341) acquires resource allocation information. The base station 300 (first communication processing unit 343) transmits control information including resource allocation information to two or more cooperating UEs 100 indicated by the cooperating UE list.
基地局300は、協調送信のためのULリソースを示すリソース割当情報を協調UE100へ送信する。具体的には、基地局300(情報取得部341)は、リソース割当情報を取得する。基地局300(第1通信処理部343)は、リソース割当情報を含む制御情報を協調UEリストにより示される2つ以上の協調UE100へ送信する。 - Transmission of resource allocation
基地局300は、協調UE100から受信されるリファレンス信号に基づきULリソースを決定する。例えば、基地局300は、協調UEリストにより示される2つ以上の協調UE100についてのUL伝搬路の情報に基づき、協調送信のためのULリソースを当該2つ以上の協調UE100にそれぞれ割り当てる。当該ULリソースの割当を示すリソース割当情報を含む制御情報が当該2つ以上の協調UE100へ送信される。
The base station 300 determines UL resources based on the reference signal received from the cooperative UE 100. For example, the base station 300 allocates UL resources for cooperative transmission to the two or more cooperative UEs 100 based on UL channel information for the two or more cooperative UEs 100 indicated by the cooperative UE list. Control information including resource allocation information indicating allocation of the UL resources is transmitted to the two or more cooperating UEs 100 .
また、基地局300は、協調MIMOのための協調プリコーディングを2つ以上の協調UE100へ送信する。具体的には、基地局300(情報取得部341)は、協調プリコーディングを取得する。基地局300(第1通信処理部343)は、協調プリコーディングを含む制御情報を2つ以上の協調UE100へ送信する。
Also, the base station 300 transmits cooperative precoding for cooperative MIMO to two or more cooperative UEs 100 . Specifically, base station 300 (information acquisition unit 341) acquires cooperative precoding. The base station 300 (first communication processing unit 343 ) transmits control information including cooperative precoding to two or more cooperative UEs 100 .
基地局300は、協調UE100から受信されるリファレンス信号に基づき協調MIMOのための制御情報を決定する。例えば、基地局300は、協調UEリストにより示される2つ以上の協調UE100についてのUL伝搬路の情報に基づき、協調MIMOのための協調プリコーディングを決定する。当該協調プリコーディングを含む制御情報が当該2つ以上の協調UE100へ送信される。
The base station 300 determines control information for cooperative MIMO based on the reference signal received from the cooperative UE 100. For example, the base station 300 determines cooperative precoding for cooperative MIMO based on UL channel information for two or more cooperative UEs 100 indicated by the cooperative UE list. Control information including the cooperative precoding is transmitted to the two or more cooperative UEs 100 .
例えば、基地局300(第1通信処理部343)は、リソース割当情報及び協調プリコーディングを含むDCI(Downlink Control Information)を2つ以上の協調UE100へ送信する。
For example, the base station 300 (first communication processing unit 343) transmits DCI (Downlink Control Information) including resource allocation information and cooperative precoding to two or more cooperative UEs 100.
-協調送信データの受信
基地局300は、2つ以上の協調UE100から協調して送信される協調送信データを受信する。具体的には、基地局300(第1通信処理部343)は、2つ以上の協調UE100にそれぞれ割り当てられたULリソースで送信される協調送信データそれぞれを受信する。 - Reception of coordinated transmission data Thebase station 300 receives coordinated transmission data transmitted in cooperation from two or more coordinated UEs 100 . Specifically, the base station 300 (first communication processing unit 343) receives each piece of coordinated transmission data transmitted using UL resources allocated to two or more coordinated UEs 100, respectively.
基地局300は、2つ以上の協調UE100から協調して送信される協調送信データを受信する。具体的には、基地局300(第1通信処理部343)は、2つ以上の協調UE100にそれぞれ割り当てられたULリソースで送信される協調送信データそれぞれを受信する。 - Reception of coordinated transmission data The
基地局300は、受信された協調送信データそれぞれに基づき、協調送信データ全体を取得する。例えば、基地局300は、受信された協調送信データ全体の部分それぞれに基づき協調送信データ全体を復元する。なお、受信される協調送信データが協調送信データ全体である場合は、基地局300は、受信された協調送信データのうちの1つを選択的に取得してもよい。
The base station 300 acquires the entire coordinated transmission data based on each received coordinated transmission data. For example, the base station 300 recovers the entire coordinated transmission data based on each received portion of the overall coordinated transmission data. Note that if the received coordinated transmission data is the entire coordinated transmission data, base station 300 may selectively acquire one of the received coordinated transmission data.
(5)処理の流れ
図6を参照して、本開示の第1の実施形態に係る処理の例を説明する。図6の例では、UE100Aが送信UE、代表UE及び協調UEとして動作し、UE100Bが協調UEとして動作する。 (5) Flow of Processing An example of processing according to the first embodiment of the present disclosure will be described with reference to FIG. In the example of FIG. 6, theUE 100A operates as a transmitting UE, a representative UE and a cooperating UE, and the UE 100B operates as a coordinating UE.
図6を参照して、本開示の第1の実施形態に係る処理の例を説明する。図6の例では、UE100Aが送信UE、代表UE及び協調UEとして動作し、UE100Bが協調UEとして動作する。 (5) Flow of Processing An example of processing according to the first embodiment of the present disclosure will be described with reference to FIG. In the example of FIG. 6, the
UE100Aは、協調送信データ及び送信割当情報をUE100Bへ送信する(S501)。例えば、UE100Aは、協調送信で基地局300へ送信されるべきデータの送信要求が発生すると、協調UEとして動作するUE100を示す協調UEリストを取得する。また、UE100Aは、協調送信データについての送信割当情報を取得する。UE100Aは、取得された協調UEリストにより示されるUE100Bへ協調送信データ及び送信割当情報を送信する。
The UE 100A transmits cooperative transmission data and transmission allocation information to the UE 100B (S501). For example, when a transmission request for data to be transmitted to base station 300 by cooperative transmission is generated, UE 100A acquires a cooperative UE list indicating UEs 100 operating as cooperative UEs. Also, the UE 100A acquires transmission allocation information for cooperative transmission data. The UE 100A transmits cooperative transmission data and transmission allocation information to the UE 100B indicated by the acquired cooperative UE list.
UE100A及びUE100Bは、SRSを基地局300へ送信する(S503)。例えば、UE100A及びUE100Bは、基地局300からSRSリクエストを受信した後は、定期的にSRSを基地局300へ送信する。なお、図6では、協調送信データの共有後に送信されるSRSが用いられるが、その前に送信されるSRSが用いられてもよい。
The UE 100A and UE 100B transmit the SRS to the base station 300 (S503). For example, UE 100A and UE 100B periodically transmit SRS to base station 300 after receiving the SRS request from base station 300 . In addition, in FIG. 6, the SRS transmitted after sharing the cooperative transmission data is used, but the SRS transmitted before that may be used.
UE100Aは、協調UEリストを基地局300へ送信する(S505)。例えば、UE100Aは、協調送信データを共有したUE100Bを示す協調UEリストを基地局300へ送信する。図6の例のUE100Aように協調UEリストを送信するUE100が協調UEとして動作する場合は、協調UEリスト及び協調UEリストの送信元が2つ以上の協調UE100を示す。例えば、協調UEリストは、UE100Bを示す。なお、協調UEリストの送信元が協調UEリストに含まれてもよい。例えば、協調UEリストは、UE100A及びUE100Bを示してもよい。
The UE 100A transmits the cooperative UE list to the base station 300 (S505). For example, UE 100A transmits to base station 300 a cooperative UE list indicating UE 100B that has shared cooperative transmission data. When the UE 100 that transmits the coordinated UE list operates as a coordinated UE like the UE 100A in the example of FIG. For example, the coordinated UE list indicates UE 100B. Note that the source of the coordinated UE list may be included in the coordinated UE list. For example, a coordinated UE list may indicate UE 100A and UE 100B.
基地局300は、リソース割当情報及び協調プリコーディングを協調UEとして動作するUE100A及びUE100Bへ送信する(S507)。例えば、基地局300は、SRSを受信したUE100のうち協調UEリストに示されるUE100A及びUE100Bについて、SRSから観測したUL伝搬路の情報を用いて協調送信用のULリソースを割り当てる。UE200からもSRSが受信されているが、UE200は協調UEリストに示されていないため、基地局300はUE200には協調送信用のULリソースを割り当てない。また、基地局300は、UE100A及びUE100Bによる協調MIMOのための協調プリコーディングを取得する。そして、基地局300は、割り当てたULリソースを示すリソース割当情報及び協調プリコーディングをUE100A及びUE100Bへ送信する。
The base station 300 transmits resource allocation information and cooperative precoding to the UE 100A and UE 100B operating as cooperative UEs (S507). For example, base station 300 allocates UL resources for coordinated transmission to UE 100A and UE 100B indicated in the coordinated UE list among UEs 100 that have received SRS, using UL channel information observed from SRS. An SRS is also received from UE200, but UE200 is not shown in the cooperative UE list, so base station 300 does not allocate UL resources for cooperative transmission to UE200. Also, base station 300 acquires cooperative precoding for cooperative MIMO by UE 100A and UE 100B. Base station 300 then transmits resource allocation information indicating the allocated UL resources and cooperative precoding to UE 100A and UE 100B.
UE100A及びUE100Bは、受信されたリソース割当情報及び協調プリコーディングに基づいて協調送信データを基地局300へ送信する(S509)。例えば、UE100A及びUE100Bは、割り当てられたULリソース及び協調プリコーディングを用いて協調送信データを基地局300へ送信する。
The UE 100A and UE 100B transmit cooperative transmission data to the base station 300 based on the received resource allocation information and cooperative precoding (S509). For example, UE 100A and UE 100B transmit cooperative transmission data to base station 300 using the allocated UL resources and cooperative precoding.
(6)リソース割当
図7を参照して、本開示の第1の実施形態に係るリソース割当の例を説明する。図7で示される各ブロックは、データ又はリソースブロックである。 (6) Resource Allocation An example of resource allocation according to the first embodiment of the present disclosure will be described with reference to FIG. Each block shown in FIG. 7 is a data or resource block.
図7を参照して、本開示の第1の実施形態に係るリソース割当の例を説明する。図7で示される各ブロックは、データ又はリソースブロックである。 (6) Resource Allocation An example of resource allocation according to the first embodiment of the present disclosure will be described with reference to FIG. Each block shown in FIG. 7 is a data or resource block.
本実施形態では、協調送信データは基地局300により受信される。そのため、図7の左に示される協調送信データのブロックサイズは、図7の中央に示される基地局300が受信するデータに対応するブロックサイズと同一である。
In this embodiment, the coordinated transmission data is received by the base station 300. Therefore, the block size of cooperative transmission data shown on the left side of FIG. 7 is the same as the block size corresponding to the data received by base station 300 shown in the center of FIG.
協調送信データを送信する各UE100に割り当てられるリソースについて図6のケースで説明する。図6のケースでは、UE100A及びUE100BにはULリソースと協調プリコーディングとが提供される。例えば、UE100A及びUE100Bには、図7の右に示されるように、協調プリコーディングを用いた協調MIMOのためのリソース、UE100A単独送信のためのリソース、UE100B単独送信のためのリソースが割り当てられる。
The resources allocated to each UE 100 that transmits cooperative transmission data will be explained using the case of FIG. In the case of FIG. 6, UE 100A and UE 100B are provided with UL resources and cooperative precoding. For example, UE 100A and UE 100B are allocated resources for cooperative MIMO using cooperative precoding, resources for UE 100A independent transmission, and resources for UE 100B independent transmission, as shown on the right side of FIG.
なお、UE100A及びUE100Bに割り当てられるリソースのサイズは、UE100A及びUE100Bそれぞれが送信すべき協調送信データのサイズに応じていてもよい。
Note that the sizes of the resources allocated to the UE 100A and the UE 100B may correspond to the sizes of the cooperative transmission data to be transmitted by each of the UE 100A and the UE 100B.
上記のように、本開示の第1の実施形態によれば、UE100が協調UEリストを基地局300へ送信し、基地局300が当該協調UEリストを受信する。したがって、協調的にデータを送信可能なUE100に協調送信用のULリソースを割り当てることが可能になる。
As described above, according to the first embodiment of the present disclosure, UE 100 transmits a coordinated UE list to base station 300, and base station 300 receives the coordinated UE list. Therefore, it becomes possible to allocate UL resources for cooperative transmission to UE 100 capable of cooperatively transmitting data.
<1-5.変形例>
図8を参照して、本開示の第1の実施形態に係る第1~第6の変形例を説明する。図8の例では、UE100Aが送信UEとして動作し、UE100Bが代表UE及び協調UEとして動作し、UE100Cが協調UEとして動作する。なお、これらの変形例のうちの2つ以上が組み合わせられてもよい。 <1-5. Variation>
First to sixth modifications according to the first embodiment of the present disclosure will be described with reference to FIG. In the example of FIG. 8, theUE 100A operates as a transmitting UE, the UE 100B operates as a representative UE and a cooperating UE, and the UE 100C operates as a coordinating UE. Note that two or more of these modifications may be combined.
図8を参照して、本開示の第1の実施形態に係る第1~第6の変形例を説明する。図8の例では、UE100Aが送信UEとして動作し、UE100Bが代表UE及び協調UEとして動作し、UE100Cが協調UEとして動作する。なお、これらの変形例のうちの2つ以上が組み合わせられてもよい。 <1-5. Variation>
First to sixth modifications according to the first embodiment of the present disclosure will be described with reference to FIG. In the example of FIG. 8, the
(1)第1の変形例
本開示の第1の実施形態の上述した例では、協調UEリストが代表UE100から基地局300へ送信される。しかし、本開示の第1の実施形態に係る協調UEリストは、この例に限定されない。 (1) First Modification In the above example of the first embodiment of the present disclosure, the coordinated UE list is transmitted from therepresentative UE 100 to the base station 300 . However, the cooperating UE list according to the first embodiment of the present disclosure is not limited to this example.
本開示の第1の実施形態の上述した例では、協調UEリストが代表UE100から基地局300へ送信される。しかし、本開示の第1の実施形態に係る協調UEリストは、この例に限定されない。 (1) First Modification In the above example of the first embodiment of the present disclosure, the coordinated UE list is transmitted from the
本開示の第1の実施形態の第1の変形例として、代表UEとして動作するUE100は、協調UEリストの有効条件を基地局300へ送信してもよい。具体的には、代表UE100(情報取得部131)は、協調UEリストが有効である条件に関する有効条件情報を取得する。代表UE100(通信処理部133)は、有効条件情報を含む制御情報を基地局300へ送信する。基地局300(第1通信処理部343)は、有効条件情報を含む制御情報を受信する。基地局300(情報取得部341)は、制御情報に含まれる有効条件情報を取得する。
As a first modification of the first embodiment of the present disclosure, the UE 100 operating as the representative UE may transmit to the base station 300 the validity condition of the cooperative UE list. Specifically, the representative UE 100 (information acquisition unit 131) acquires validity condition information regarding the conditions under which the cooperative UE list is valid. The representative UE 100 (communication processing unit 133 ) transmits control information including validity condition information to the base station 300 . The base station 300 (first communication processing unit 343) receives control information including validity condition information. The base station 300 (information acquisition unit 341) acquires valid condition information included in the control information.
例えば、図8の例では、UE100Bは、有効条件情報を基地局300へ送信する(S555)。UE100Bは、有効条件情報をUE100Aから受信してもよく、UE100B内で取得してもよい。
For example, in the example of FIG. 8, the UE 100B transmits valid condition information to the base station 300 (S555). The UE 100B may receive the valid condition information from the UE 100A, or may acquire it within the UE 100B.
これにより、協調送信データをより確実に送信可能なUE100にULリソースを割り当てることができる。即ち、ULリソースの浪費を抑制することができる。なお、有効条件情報は、協調UEリストが含まれる制御情報に含まれてもよいし、当該制御情報とは別の制御情報に含まれてもよい。
By this means, it is possible to allocate UL resources to UE 100 capable of transmitting cooperative transmission data more reliably. That is, waste of UL resources can be suppressed. Note that the validity condition information may be included in control information including the cooperative UE list, or may be included in control information different from the control information.
-通信状況
有効条件情報は、2つ以上の協調UE100における直接通信を用いた協調送信データの送信又は受信の状況に関する通信状況情報を含んでもよい。具体的には、代表UE100(情報取得部131)は、通信状況情報を取得する。代表UE100(通信処理部133)は、通信状況情報を含む制御情報を基地局300へ送信する。基地局300(第1通信処理部343)は、通信状況情報を含む制御情報を受信する。基地局300(情報取得部341)は、制御情報に含まれる通信状況情報を取得する。これにより、協調UE100におけるサイドリンクを用いた協調送信データの共有の状況に基づいて、協調送信データに対するULリソースをUE100に割り当てることができる。即ち、協調送信データをより確実に送信可能なUE100にULリソースを割り当てることができる。 - Communication status Validity condition information may include communication status information regarding the status of transmission or reception of cooperative transmission data using direct communication in two or morecooperative UEs 100 . Specifically, the representative UE 100 (information acquisition unit 131) acquires communication status information. The representative UE 100 (communication processing unit 133 ) transmits control information including communication status information to the base station 300 . The base station 300 (first communication processing unit 343) receives control information including communication status information. The base station 300 (information acquisition unit 341) acquires communication status information included in control information. By this means, it is possible to allocate UL resources for cooperative transmission data to UE 100 based on the state of cooperative transmission data sharing using the sidelink in cooperative UE 100 . That is, it is possible to allocate UL resources to UE 100 capable of transmitting cooperative transmission data more reliably.
有効条件情報は、2つ以上の協調UE100における直接通信を用いた協調送信データの送信又は受信の状況に関する通信状況情報を含んでもよい。具体的には、代表UE100(情報取得部131)は、通信状況情報を取得する。代表UE100(通信処理部133)は、通信状況情報を含む制御情報を基地局300へ送信する。基地局300(第1通信処理部343)は、通信状況情報を含む制御情報を受信する。基地局300(情報取得部341)は、制御情報に含まれる通信状況情報を取得する。これにより、協調UE100におけるサイドリンクを用いた協調送信データの共有の状況に基づいて、協調送信データに対するULリソースをUE100に割り当てることができる。即ち、協調送信データをより確実に送信可能なUE100にULリソースを割り当てることができる。 - Communication status Validity condition information may include communication status information regarding the status of transmission or reception of cooperative transmission data using direct communication in two or more
通信状況情報は、2つ以上の協調UE100における直接通信を用いた協調送信データの送信又は受信の進行度を示してもよい。例えば、通信状況情報は、送信UE100から協調UE100への共有が完了している協調送信データの量又は割合を示す。基地局300は、通信状況情報が示す協調送信データの共有の進行度に基づいて協調送信データに対するULリソースを割り当てる。例えば、基地局300は、共有が完了している協調送信データの量を上限としてULリソースを割り当てる。また、基地局300は、共有が完了している協調送信データの割合に応じて各協調UE100に割り当てるULリソースを決定する。これにより、協調送信データをより確実に送信可能なUE100にULリソースを過不足なく割り当てることができる。
The communication status information may indicate the progress of transmission or reception of cooperative transmission data using direct communication in two or more cooperative UEs 100 . For example, the communication status information indicates the amount or ratio of cooperative transmission data that has been shared from the transmitting UE 100 to the cooperative UE 100 . Base station 300 allocates UL resources for cooperative transmission data based on the progress of sharing cooperative transmission data indicated by the communication status information. For example, the base station 300 allocates UL resources up to the amount of cooperative transmission data that has been shared. Also, the base station 300 determines UL resources to be allocated to each cooperative UE 100 according to the proportion of cooperative transmission data for which sharing has been completed. By this means, it is possible to allocate UL resources to UE 100 capable of more reliably transmitting cooperative transmission data in just the right amount.
なお、基地局300は、通信状況情報が示す協調送信データの共有の進行度に基づいて、協調UEリストを無効と判定してもよい。例えば、基地局300は、通信状況情報が示す協調送信データの共有の進行度が閾値以下である場合、協調UEリストを無効と判定する。無効と判定された協調UEリストは協調送信に関する処理に用いられない。協調UEリストが無効と判定されたことを示す情報が代表UE100へ送信されてもよい。
Note that the base station 300 may determine that the cooperative UE list is invalid based on the degree of progress of sharing cooperative transmission data indicated by the communication status information. For example, the base station 300 determines that the cooperative UE list is invalid when the degree of progress of sharing cooperative transmission data indicated by the communication status information is equal to or less than a threshold. A cooperative UE list that is determined to be invalid is not used for processes related to cooperative transmission. Information indicating that the cooperative UE list has been determined to be invalid may be transmitted to the representative UE 100 .
また、通信状況情報は、2つ以上の協調UE100における直接通信の安定度を示してもよい。具体的には、通信状況情報は、協調UE100と送信UE100との間のサイドリンクの安定度を示す。例えば、サイドリンクの安定度は、通信の量、期間、頻度又は遅延に基づいて判定されてもよい。これにより、協調送信データをより確実に共有し送信可能なUE100にULリソースを割り当てることができる。
Also, the communication status information may indicate the stability of direct communication between two or more cooperative UEs 100. Specifically, the communication status information indicates the stability of sidelinks between the cooperative UE 100 and the transmitting UE 100 . For example, sidelink stability may be determined based on the amount, duration, frequency or delay of communications. This makes it possible to allocate UL resources to UEs 100 capable of sharing and transmitting cooperative transmission data more reliably.
-有効時間
有効条件情報は、協調UEリストの有効時間を示してもよい。基地局300は、当該有効時間に基づいて協調UEリストを無効と判定してもよい。例えば、基地局300は、有効条件情報が示す有効時間の経過前までに、当該有効時間の延長を示す情報又は更新された協調UEリストを代表UE100から受信しない場合、協調UEリストを無効と判定する。なお、有効時間の延長を示す情報の代わりに変更されていない協調UEリストが代表UE100から送信されてもよい。これにより、協調UEリストの送信後に時間経過で協調UE100の状況が協調送信データの送信に適さなくなった場合に、当該協調UE100にULリソースが割り当てられることを抑制できる。 - Validity time Validity condition information may indicate the validity time of the cooperative UE list.Base station 300 may determine that the coordinated UE list is invalid based on the valid time. For example, if the base station 300 does not receive the information indicating the extension of the valid time or the updated coordinated UE list from the representative UE 100 before the valid time indicated by the valid condition information elapses, the coordinated UE list is determined to be invalid. do. Note that the coordinated UE list that has not been changed may be transmitted from the representative UE 100 instead of the information indicating the extension of the valid time. By this means, it is possible to suppress allocation of UL resources to the cooperative UE 100 when the situation of the cooperative UE 100 becomes unsuitable for the transmission of cooperative transmission data over time after the transmission of the cooperative UE list.
有効条件情報は、協調UEリストの有効時間を示してもよい。基地局300は、当該有効時間に基づいて協調UEリストを無効と判定してもよい。例えば、基地局300は、有効条件情報が示す有効時間の経過前までに、当該有効時間の延長を示す情報又は更新された協調UEリストを代表UE100から受信しない場合、協調UEリストを無効と判定する。なお、有効時間の延長を示す情報の代わりに変更されていない協調UEリストが代表UE100から送信されてもよい。これにより、協調UEリストの送信後に時間経過で協調UE100の状況が協調送信データの送信に適さなくなった場合に、当該協調UE100にULリソースが割り当てられることを抑制できる。 - Validity time Validity condition information may indicate the validity time of the cooperative UE list.
なお、協調UEリストの有効時間を示す有効条件情報は、有効時間の長さに応じた制御情報に含まれてよい。例えば、有効時間が比較的長い場合(例えば、数百msec)、有効条件情報はRRCメッセージに含まれてもよく、有効時間が比較的短い場合(例えば、数十msec)、有効条件情報はUCIに含まれてもよい。
The validity condition information indicating the validity period of the cooperative UE list may be included in the control information corresponding to the length of the validity period. For example, if the validity time is relatively long (eg, hundreds of msec), the validity condition information may be included in the RRC message, and if the validity time is relatively short (eg, tens of msec), the validity condition information may be included in the UCI may be included in
(2)第2の変形例
本開示の第1の実施形態の上述した例では、送信UE100が協調UE及び代表UEとしても動作する。しかし、本開示の第1の実施形態に係る送信UE100は、この例に限定されない。 (2) Second Modification In the above-described example of the first embodiment of the present disclosure, the transmittingUE 100 also operates as a cooperative UE and a representative UE. However, the transmitting UE 100 according to the first embodiment of the present disclosure is not limited to this example.
本開示の第1の実施形態の上述した例では、送信UE100が協調UE及び代表UEとしても動作する。しかし、本開示の第1の実施形態に係る送信UE100は、この例に限定されない。 (2) Second Modification In the above-described example of the first embodiment of the present disclosure, the transmitting
本開示の第1の実施形態の第2の変形例として、送信UE100は、協調UEとして動作しなくてもよい。例えば、送信UE100は、送信UE及び代表UEとして動作する。この場合、送信UE100は、協調UEリストには示されず、協調送信データを基地局300へ送信しない。これにより、送信UE100と基地局300との通信量を削減することができる。
As a second modification of the first embodiment of the present disclosure, the transmitting UE 100 may not operate as a cooperative UE. For example, the transmitting UE 100 operates as a transmitting UE and a representative UE. In this case, the transmitting UE 100 is not shown in the cooperative UE list and does not transmit cooperative transmission data to the base station 300 . Thereby, the amount of communication between the transmitting UE 100 and the base station 300 can be reduced.
また、送信UE100は、代表UEとして動作しなくてもよい。例えば、UE100は、送信UE及び協調UEとして動作する。この場合、送信UE100は、協調UEリストを代表UEとして動作する他のUE100へ送信する。これにより、送信UE100と基地局300との通信量を削減することができる。
Also, the transmitting UE 100 does not have to operate as a representative UE. For example, UE 100 operates as a transmitting UE and a coordinating UE. In this case, the transmitting UE 100 transmits the coordinated UE list to other UEs 100 operating as representative UEs. Thereby, the amount of communication between the transmitting UE 100 and the base station 300 can be reduced.
また、UE100は、送信UEとしてのみ動作してもよい。この場合、代表UE100が基地局300へ協調UEリストを送信し、協調UE100が基地局300へ協調送信データを送信する。これにより、送信UE100が基地局300と通信できなくても協調送信データを基地局300へ協調送信することができる。
Also, the UE 100 may operate only as a transmitting UE. In this case, the representative UE 100 transmits the coordinated UE list to the base station 300 and the coordinated UE 100 transmits coordinated transmission data to the base station 300 . By this means, cooperative transmission data can be cooperatively transmitted to the base station 300 even if the transmitting UE 100 cannot communicate with the base station 300 .
例えば、図8の例では、UE100Aは、協調UEリストをUE100Bへ送信する(S551)。UE100Aの代わりに、UE100Bが協調UEリストを基地局300へ送信する。
For example, in the example of FIG. 8, the UE 100A transmits the cooperative UE list to the UE 100B (S551). UE 100B transmits the coordinated UE list to base station 300 instead of UE 100A.
なお、UE100は、代表UEとしてのみ動作してもよい。この場合、代表UE100(通信処理部133)は、協調UEリストを含む制御情報を協調UEではない他のUE100(例えば送信UE100)から直接通信で受信する。代表UE100(情報取得部131)は、当該制御情報に含まれる協調UEリストを取得する。代表UE100(通信処理部133)は、取得された協調UEリストを基地局300へ送信する。これにより、送信UE100が基地局300と通信できなくても協調送信に関する制御情報を基地局300へ送信することができる。なお、代表UE100は、第1の実施の形態又はいずれかの変形例において送信UEが基地局300へ送信すると説明したその他の制御情報を送信してもよい。
Note that the UE 100 may operate only as a representative UE. In this case, the representative UE 100 (communication processing unit 133) receives control information including the cooperative UE list from another UE 100 (for example, the transmitting UE 100) that is not a cooperative UE through direct communication. The representative UE 100 (information acquisition unit 131) acquires the cooperative UE list included in the control information. The representative UE 100 (communication processing unit 133 ) transmits the acquired cooperative UE list to the base station 300 . By this means, even if the transmitting UE 100 cannot communicate with the base station 300, it is possible to transmit control information related to cooperative transmission to the base station 300. FIG. It should be noted that the representative UE 100 may transmit other control information that is described as being transmitted by the transmitting UE to the base station 300 in the first embodiment or any of the modified examples.
例えば、図8の例では、UE100Bは、協調UEリストをUE100Aから受信する(S551)。UE100Bは、協調UEリストを基地局300へ送信する(S555)。
For example, in the example of FIG. 8, the UE 100B receives the cooperative UE list from the UE 100A (S551). The UE 100B transmits the coordinated UE list to the base station 300 (S555).
(3)第3の変形例
本開示の第1の実施形態の上述した例では、UE100Aが代表UEとして決定されている。しかし、本開示の第1の実施形態に係る代表UEの決定方法は、この例に限定されない。 (3) Third Modification In the above-described example of the first embodiment of the present disclosure,UE 100A is determined as the representative UE. However, the representative UE determination method according to the first embodiment of the present disclosure is not limited to this example.
本開示の第1の実施形態の上述した例では、UE100Aが代表UEとして決定されている。しかし、本開示の第1の実施形態に係る代表UEの決定方法は、この例に限定されない。 (3) Third Modification In the above-described example of the first embodiment of the present disclosure,
本開示の第1の実施形態の第3の変形例として、代表UE100は、送信UE100と直接通信で通信可能であり基地局300と通信可能なUE100の中から選出されてもよい。具体的には、UE100(情報取得部131)は、基地局300と通信可能なUE100を示す代表UE情報を取得する。UE100(通信処理部133)は、UE100が代表UE情報により示されるUE100である場合、協調UEリストを含む制御情報を基地局300へ送信する。
As a third modification of the first embodiment of the present disclosure, the representative UE 100 may be selected from among the UEs 100 that are capable of direct communication with the transmitting UE 100 and that are capable of communicating with the base station 300 . Specifically, UE 100 (information acquisition unit 131 ) acquires representative UE information indicating UE 100 that can communicate with base station 300 . UE 100 (communication processing unit 133 ) transmits control information including a cooperating UE list to base station 300 when UE 100 is UE 100 indicated by the representative UE information.
例えば、代表UE100は、送信UE100と直接通信で通信可能であり基地局300と通信可能なUE100である協調UE100の中から選出される。送信UE100は、協調UE100の中から代表UE100を選出し、当該代表UE100を示す代表UE情報を協調UEへ送信する。協調UE100は、受信された代表UE情報が自身を示すか否かを判定する。代表UE情報が自身を示す場合、協調UE100は、代表UEとして動作する。
For example, the representative UE 100 is selected from among the coordinating UEs 100, which are UEs 100 that can directly communicate with the transmitting UE 100 and can communicate with the base station 300. The transmitting UE 100 selects a representative UE 100 from among the coordinating UEs 100 and transmits representative UE information indicating the representative UE 100 to the coordinating UEs. Cooperating UE 100 determines whether the received representative UE information indicates itself. When the representative UE information indicates itself, the cooperative UE 100 operates as a representative UE.
これにより、基地局300と通信可能な代表UE100を選出することができる。そのため、送信UE100が基地局300と通信できない場合であっても、協調UEリストなどの協調送信のための制御情報を基地局300へ送信することができる。
As a result, the representative UE 100 that can communicate with the base station 300 can be selected. Therefore, even if the transmitting UE 100 cannot communicate with the base station 300 , it is possible to transmit control information for cooperative transmission such as a cooperative UE list to the base station 300 .
(4)第4の変形例
本開示の第1の実施形態の上述した例では、送信割当情報は送信UE100から協調UE100へ送信される。しかし、本開示の第1の実施形態に係る送信割当情報の送信は、この例に限定されない。 (4) Fourth Modification In the above-described example of the first embodiment of the present disclosure, transmission allocation information is transmitted from transmittingUE 100 to cooperative UE 100 . However, transmission of transmission allocation information according to the first embodiment of the present disclosure is not limited to this example.
本開示の第1の実施形態の上述した例では、送信割当情報は送信UE100から協調UE100へ送信される。しかし、本開示の第1の実施形態に係る送信割当情報の送信は、この例に限定されない。 (4) Fourth Modification In the above-described example of the first embodiment of the present disclosure, transmission allocation information is transmitted from transmitting
本開示の第1の実施形態の第4の変形例として、送信割当情報は、代表UE100から基地局300へ送信されてもよい。例えば、代表UE100は、送信UE100から送信割当情報を受信し、送信割当情報を含む制御情報を基地局300へ送信する。協調UEリストを含む制御情報に送信割当情報が含まれてもよい。また、基地局300は、送信割当情報を用いてULリソースを協調UE100に割り当ててもよい。これにより、協調送信のためのULリソースを過不足なく割り当てることができる。
As a fourth modification of the first embodiment of the present disclosure, the transmission allocation information may be transmitted from the representative UE 100 to the base station 300. For example, the representative UE 100 receives transmission allocation information from the transmitting UE 100 and transmits control information including the transmission allocation information to the base station 300 . The transmission allocation information may be included in the control information including the cooperating UE list. Also, the base station 300 may allocate UL resources to the cooperative UE 100 using transmission allocation information. By this means, it is possible to allocate UL resources for cooperative transmission just enough.
なお、送信UE100は、送信割当情報を協調UE100へ送信する代わりに、各協調UE100が送信すべき部分の協調送信データのみをそれぞれ共有してもよい。
Note that the transmitting UE 100 may share only the part of the cooperative transmission data that each cooperative UE 100 should transmit instead of transmitting the transmission allocation information to the cooperative UE 100 .
(5)第5の変形例
本開示の第1の実施形態の上述した例では、協調UE100は送信UE100から協調送信データを受信した後に基地局300から割り当てられたULリソースを用いて協調送信データを基地局300へ送信する。しかし、本開示の第1の実施形態に係る協調送信は、この例に限定されない。 (5) Fifth Modification In the above-described example of the first embodiment of the present disclosure,cooperative UE 100 uses UL resources allocated from base station 300 after receiving cooperative transmission data from transmitting UE 100. to the base station 300 . However, cooperative transmission according to the first embodiment of the present disclosure is not limited to this example.
本開示の第1の実施形態の上述した例では、協調UE100は送信UE100から協調送信データを受信した後に基地局300から割り当てられたULリソースを用いて協調送信データを基地局300へ送信する。しかし、本開示の第1の実施形態に係る協調送信は、この例に限定されない。 (5) Fifth Modification In the above-described example of the first embodiment of the present disclosure,
本開示の第1の実施形態の第5の変形例として、送信UE100は、協調送信データを識別するためのデータ識別情報を協調UE100へ送信してもよい。例えば、送信UE100は、協調送信データとともに当該データ識別情報を協調UE100へ直接通信で送信する。データ識別情報は、例えば送信UE又は代表UEの識別子又は識別子から生成される情報であってもよい。なお、当該データ識別情報は、協調送信データとは別に送信されてもよい。
As a fifth modification of the first embodiment of the present disclosure, the transmitting UE 100 may transmit data identification information for identifying cooperative transmission data to the cooperative UE 100. For example, the transmitting UE 100 transmits the data identification information together with the cooperative transmission data to the cooperative UE 100 by direct communication. The data identification information may be, for example, the identifier of the transmitting UE or the representative UE or information generated from the identifier. Note that the data identification information may be transmitted separately from the cooperative transmission data.
また、基地局300は、協調送信のためのULリソースに対応付けられたデータ識別情報を協調UE100へ送信する。例えば、基地局300は、協調送信のためのULリソースを示すリソース割当情報とともに当該データ識別情報を協調UE100へ送信する。なお、当該データ識別情報は、リソース割当情報とは別に送信されてもよい。
Also, the base station 300 transmits data identification information associated with UL resources for cooperative transmission to the cooperative UE 100 . For example, the base station 300 transmits the data identification information to the cooperative UE 100 together with resource allocation information indicating UL resources for cooperative transmission. Note that the data identification information may be transmitted separately from the resource allocation information.
協調UE100は、受信されたデータ識別情報が示す協調送信データを、基地局300から割り当てられた当該データ識別情報に対応付けられたULリソースを用いて基地局300へ送信する。
The coordinated UE 100 transmits the coordinated transmission data indicated by the received data identification information to the base station 300 using the UL resource associated with the data identification information allocated by the base station 300 .
(6)第6の変形例
本開示の第1の実施形態の上述した例では、協調UEリストは代表UE100から基地局300へ送信される。しかし、本開示の第1の実施形態に係る協調UEリストの送信は、この例に限定されない。 (6) Sixth Modification In the above example of the first embodiment of the present disclosure, the coordinated UE list is transmitted from therepresentative UE 100 to the base station 300 . However, transmission of the cooperative UE list according to the first embodiment of the present disclosure is not limited to this example.
本開示の第1の実施形態の上述した例では、協調UEリストは代表UE100から基地局300へ送信される。しかし、本開示の第1の実施形態に係る協調UEリストの送信は、この例に限定されない。 (6) Sixth Modification In the above example of the first embodiment of the present disclosure, the coordinated UE list is transmitted from the
本開示の第1の実施形態の第6の変形例として、送信UE100は、協調送信データとともに協調UEリストを周辺のUE100へ送信してもよい。例えば、送信UE100は、協調送信データ及び協調UEリストをサイドリンクでブロードキャストする。なお、代表UE100が協調UEリストを周辺のUE100へ送信してもよい。
As a sixth modification of the first embodiment of the present disclosure, the transmitting UE 100 may transmit a cooperative UE list to neighboring UEs 100 together with cooperative transmission data. For example, the transmitting UE 100 broadcasts cooperative transmission data and a cooperative UE list on the sidelink. Note that the representative UE 100 may transmit the coordinated UE list to the neighboring UEs 100 .
協調UE100は、周辺のUE100宛ての協調送信データ及び協調UEリストを受信する。例えば、協調UE100は、ブロードキャストされる協調送信データ及び協調UEリストをサイドリンクで受信する。協調UE100は、受信された協調UEリストを参照し、自身が協調UE100であるか否かを判定する。自身が協調UE100である場合、協調UE100は、受信した協調送信データを保持し、基地局300から割り当てられるULリソースを用いて基地局300へ送信する。
A cooperative UE 100 receives cooperative transmission data addressed to neighboring UEs 100 and a cooperative UE list. For example, the cooperative UE 100 receives broadcast cooperative transmission data and a cooperative UE list on the sidelink. The cooperating UE 100 refers to the received cooperating UE list and determines whether the cooperating UE 100 itself is the cooperating UE 100 . When itself is the cooperative UE 100 , the cooperative UE 100 holds the received cooperative transmission data and transmits it to the base station 300 using UL resources allocated by the base station 300 .
<2.第2の実施形態>
本開示の第2の実施形態を説明する。本実施形態では、複数のUEが複数の基地局へそれぞれ協調的にデータを送信する。なお、第1の実施形態と実質的に同一である機能又は構成については説明を省略する。 <2. Second Embodiment>
A second embodiment of the present disclosure will be described. In this embodiment, multiple UEs cooperatively transmit data to multiple base stations. Description of functions or configurations that are substantially the same as those of the first embodiment will be omitted.
本開示の第2の実施形態を説明する。本実施形態では、複数のUEが複数の基地局へそれぞれ協調的にデータを送信する。なお、第1の実施形態と実質的に同一である機能又は構成については説明を省略する。 <2. Second Embodiment>
A second embodiment of the present disclosure will be described. In this embodiment, multiple UEs cooperatively transmit data to multiple base stations. Description of functions or configurations that are substantially the same as those of the first embodiment will be omitted.
<2-1.システムの構成>
図9を参照して、本開示の第2の実施形態に係るシステム2の構成の例を説明する。図9を参照すると、システム2は、UE100(UE100A及びUE100B)、UE200及び基地局300(基地局300A及び基地局300B)を含む。 <2-1. System Configuration>
An example configuration of thesystem 2 according to the second embodiment of the present disclosure will be described with reference to FIG. Referring to FIG. 9, system 2 includes UE 100 (UE 100A and UE 100B), UE 200 and base station 300 (base station 300A and base station 300B).
図9を参照して、本開示の第2の実施形態に係るシステム2の構成の例を説明する。図9を参照すると、システム2は、UE100(UE100A及びUE100B)、UE200及び基地局300(基地局300A及び基地局300B)を含む。 <2-1. System Configuration>
An example configuration of the
例えば、システム2は、3GPPのTSに準拠したシステムである。より具体的には、例えば、システム2は、5G又はNRのTSに準拠したシステムである。当然ながら、システム2は、この例に限定されない。
For example, System 2 is a 3GPP TS-compliant system. More specifically, for example, the system 2 is a 5G or NR TS compliant system. Of course, system 2 is not limited to this example.
(1)基地局300
基地局300(基地局300A及び基地局300B)は、基地局300のカバレッジエリア内に位置するUEと通信する。また、基地局300は、他の基地局300とも通信する。例えば、基地局300は、Xnインターフェースを介して他の基地局300と通信する。あるいは、基地局300は、X2インターフェースを介して他の基地局300と通信してもよい。 (1)Base station 300
Base station 300 (base station 300A and base station 300B) communicates with UEs located within the coverage area of base station 300 . Base station 300 also communicates with other base stations 300 . For example, a base station 300 communicates with other base stations 300 via the Xn interface. Alternatively, a base station 300 may communicate with other base stations 300 via the X2 interface.
基地局300(基地局300A及び基地局300B)は、基地局300のカバレッジエリア内に位置するUEと通信する。また、基地局300は、他の基地局300とも通信する。例えば、基地局300は、Xnインターフェースを介して他の基地局300と通信する。あるいは、基地局300は、X2インターフェースを介して他の基地局300と通信してもよい。 (1)
Base station 300 (
(2)UE100及びUE200
UE100(UE100A及びUE100B)及びUE200の各々は、自身が位置するカバレッジエリアを持つ基地局300と通信する。例えば、図9の例では、UE100Aは基地局300Aと通信し、UE100B及びUE200は基地局300Bと通信する。 (2) UE100 and UE200
Each of UE 100 (UE 100A and UE 100B) and UE 200 communicates with base station 300 having a coverage area in which it is located. For example, in the example of FIG. 9, UE 100A communicates with base station 300A, and UE 100B and UE 200 communicate with base station 300B.
UE100(UE100A及びUE100B)及びUE200の各々は、自身が位置するカバレッジエリアを持つ基地局300と通信する。例えば、図9の例では、UE100Aは基地局300Aと通信し、UE100B及びUE200は基地局300Bと通信する。 (2) UE100 and UE200
Each of UE 100 (
なお、UE100及び基地局300の構成は、実質的に第1の実施形態の構成と同一であるため説明を省略する。
Note that the configurations of the UE 100 and the base station 300 are substantially the same as those of the first embodiment, so description thereof will be omitted.
<2-2.動作例>
図10、図11を参照して、本開示の第2の実施形態に係るUE100及び基地局300の動作の例を説明する。本実施形態では、UE100は、送信UE、代表UE、協調UE又はそれらのいずれか2つ若しくは全てとして動作し得る。また、基地局300は、受信基地局(第2の基地局)又は協調基地局(第1の基地局)として動作し得る。 <2-2. Operation example>
An example of operations of theUE 100 and the base station 300 according to the second embodiment of the present disclosure will be described with reference to FIGS. 10 and 11. FIG. In this embodiment, the UE 100 may act as a transmitting UE, a representative UE, a coordinating UE, or any two or all of them. Also, the base station 300 can operate as a receiving base station (second base station) or a cooperative base station (first base station).
図10、図11を参照して、本開示の第2の実施形態に係るUE100及び基地局300の動作の例を説明する。本実施形態では、UE100は、送信UE、代表UE、協調UE又はそれらのいずれか2つ若しくは全てとして動作し得る。また、基地局300は、受信基地局(第2の基地局)又は協調基地局(第1の基地局)として動作し得る。 <2-2. Operation example>
An example of operations of the
(1)送信UEの動作
送信UE100は、基地局300へ送信されるべき協調送信データを協調UE100へ送信する。また、送信UE100は、協調UE100と協調UE100が通信可能な基地局300を示す基地局情報(協調基地局情報とも称する。)を取得する。 (1) Operation of transmitting UE The transmittingUE 100 transmits cooperative transmission data to be transmitted to the base station 300 to the cooperative UE 100 . Also, the transmitting UE 100 acquires base station information (also referred to as cooperative base station information) indicating base stations 300 with which the cooperative UE 100 and the cooperative UE 100 can communicate.
送信UE100は、基地局300へ送信されるべき協調送信データを協調UE100へ送信する。また、送信UE100は、協調UE100と協調UE100が通信可能な基地局300を示す基地局情報(協調基地局情報とも称する。)を取得する。 (1) Operation of transmitting UE The transmitting
-協調基地局情報の取得
送信UE100は、協調基地局情報を取得する。協調基地局情報は、直接通信で協調送信データを送信又は受信可能な2つ以上のUE100であって、協調的に協調送信データを基地局300へ送信可能な2つ以上のUE100(即ち、2つ以上の協調UE100)のうちの1つ以上のUE100及び当該1つ以上のUE100が通信可能な基地局300を示す情報である。例えば、協調基地局情報は、送信UE100又は代表UE100と通信可能な基地局300以外の基地局300、及び当該基地局300と通信可能な協調UE100を示す。例えば、協調基地局情報は、基地局300の識別子及びUE100の識別子のセットが示される。協調基地局情報は、記憶部120に記憶されていてよい。 - Acquisition of cooperative base station information The transmittingUE 100 acquires cooperative base station information. The cooperative base station information is two or more UEs 100 capable of transmitting or receiving cooperative transmission data in direct communication, two or more UEs 100 capable of cooperatively transmitting cooperative transmission data to the base station 300 (that is, two This is information indicating one or more UEs 100 among one or more cooperating UEs 100 and base stations 300 with which the one or more UEs 100 can communicate. For example, the cooperative base station information indicates the base stations 300 other than the base station 300 that can communicate with the transmitting UE 100 or the representative UE 100 and the cooperative UEs 100 that can communicate with the base station 300 . For example, the coordinated base station information indicates a set of base station 300 identifiers and UE 100 identifiers. The cooperative base station information may be stored in storage section 120 .
送信UE100は、協調基地局情報を取得する。協調基地局情報は、直接通信で協調送信データを送信又は受信可能な2つ以上のUE100であって、協調的に協調送信データを基地局300へ送信可能な2つ以上のUE100(即ち、2つ以上の協調UE100)のうちの1つ以上のUE100及び当該1つ以上のUE100が通信可能な基地局300を示す情報である。例えば、協調基地局情報は、送信UE100又は代表UE100と通信可能な基地局300以外の基地局300、及び当該基地局300と通信可能な協調UE100を示す。例えば、協調基地局情報は、基地局300の識別子及びUE100の識別子のセットが示される。協調基地局情報は、記憶部120に記憶されていてよい。 - Acquisition of cooperative base station information The transmitting
-送信割当
協調送信データの送信割当が協調UE100に対して行われる。第2の実施形態の送信割当は第1の実施形態と実質的に同一であるため説明を省略する。 - Transmission Allocation Transmission allocation of cooperative transmission data is made to thecooperative UE 100 . Since the transmission allocation of the second embodiment is substantially the same as that of the first embodiment, the explanation is omitted.
協調送信データの送信割当が協調UE100に対して行われる。第2の実施形態の送信割当は第1の実施形態と実質的に同一であるため説明を省略する。 - Transmission Allocation Transmission allocation of cooperative transmission data is made to the
-協調送信データの送信
送信UE100は、協調送信データを直接通信で協調UE100へ送信する。第2の実施形態の協調送信データの送信は第1の実施形態と実質的に同一であるため説明を省略する。 - Transmission of cooperative transmission data The transmittingUE 100 transmits cooperative transmission data to the cooperative UE 100 by direct communication. Since transmission of cooperative transmission data in the second embodiment is substantially the same as in the first embodiment, the description is omitted.
送信UE100は、協調送信データを直接通信で協調UE100へ送信する。第2の実施形態の協調送信データの送信は第1の実施形態と実質的に同一であるため説明を省略する。 - Transmission of cooperative transmission data The transmitting
(2)代表UEの動作
代表UE100は、2つ以上の協調UE100の代表として協調基地局情報を受信基地局300へ送信する。 (2) Operation of representative UE Therepresentative UE 100 transmits cooperative base station information to the receiving base station 300 as a representative of two or more cooperative UEs 100 .
代表UE100は、2つ以上の協調UE100の代表として協調基地局情報を受信基地局300へ送信する。 (2) Operation of representative UE The
-協調基地局情報の送信
代表UE100は、協調基地局情報を基地局300へ送信する。具体的には、代表UE100(情報取得部131)は、協調基地局情報を取得する。代表UE100(通信処理部133)は、協調基地局情報を含む制御情報を基地局300へ送信する。 - Transmission of cooperative base station information Therepresentative UE 100 transmits cooperative base station information to the base station 300 . Specifically, the representative UE 100 (information acquisition unit 131) acquires cooperative base station information. The representative UE 100 (communication processing unit 133 ) transmits control information including cooperative base station information to the base station 300 .
代表UE100は、協調基地局情報を基地局300へ送信する。具体的には、代表UE100(情報取得部131)は、協調基地局情報を取得する。代表UE100(通信処理部133)は、協調基地局情報を含む制御情報を基地局300へ送信する。 - Transmission of cooperative base station information The
例えば、代表UE100(通信処理部133)は、協調基地局情報を含むUCIを基地局300へ送信する。あるいは、代表UE100(通信処理部133)は、協調基地局情報を含むMAC CE、又はRRCメッセージを基地局300へ送信する。
For example, the representative UE 100 (communication processing unit 133) transmits UCI including cooperative base station information to the base station 300. Alternatively, the representative UE 100 (communication processing unit 133) transmits a MAC CE or RRC message including cooperative base station information to the base station 300.
(3)協調UEの動作
協調UE100は、協調送信データを送信UE100から受信し、受信した協調送信データを他の協調UE100と協調して当該協調UE100が通信可能な基地局300(後述する受信基地局300又は協調基地局300)へ送信する。 (3) Operation of Cooperative UE Thecooperative UE 100 receives cooperative transmission data from the transmitting UE 100, and cooperates with other cooperative UE 100 to transmit the received cooperative transmission data to a base station 300 (receiving base described later) with which the cooperative UE 100 can communicate. station 300 or cooperative base station 300).
協調UE100は、協調送信データを送信UE100から受信し、受信した協調送信データを他の協調UE100と協調して当該協調UE100が通信可能な基地局300(後述する受信基地局300又は協調基地局300)へ送信する。 (3) Operation of Cooperative UE The
-協調送信データを受信
協調UE100は、協調送信データを送信UE100から直接通信で受信する。第2の実施形態の協調送信データの受信は第1の実施形態と実質的に同一であるため説明を省略する。 - Receiving cooperative transmission data Thecooperative UE 100 receives cooperative transmission data from the transmitting UE 100 by direct communication. Receipt of cooperative transmission data in the second embodiment is substantially the same as in the first embodiment, so description thereof will be omitted.
協調UE100は、協調送信データを送信UE100から直接通信で受信する。第2の実施形態の協調送信データの受信は第1の実施形態と実質的に同一であるため説明を省略する。 - Receiving cooperative transmission data The
-SRSの送信
協調UE100は、リファレンス信号を基地局300へ送信する。第2の実施形態のSRSの送信は第1の実施形態と実質的に同一であるため説明を省略する。 - Transmission ofSRS Cooperative UE 100 transmits a reference signal to base station 300 . Since transmission of SRS in the second embodiment is substantially the same as in the first embodiment, description thereof is omitted.
協調UE100は、リファレンス信号を基地局300へ送信する。第2の実施形態のSRSの送信は第1の実施形態と実質的に同一であるため説明を省略する。 - Transmission of
-リソース割当情報とデータ識別情報の受信
第1の実施形態と同様に、協調UE100は、ULリソースを示すリソース割当情報を基地局300から受信する。 - Receipt of resource allocation information and data identification information Similar to the first embodiment, thecooperative UE 100 receives resource allocation information indicating UL resources from the base station 300 .
第1の実施形態と同様に、協調UE100は、ULリソースを示すリソース割当情報を基地局300から受信する。 - Receipt of resource allocation information and data identification information Similar to the first embodiment, the
また、協調UE100は、協調送信データの識別のためのデータ識別情報を基地局300から受信する。具体的には、協調UE100(通信処理部133)は、データ識別情報を含む制御情報を基地局300から受信する。協調UE100(情報取得部131)は、当該制御情報からデータ識別情報を取得する。データ識別情報は、例えば送信UE又は代表UEの識別子又は識別子から生成される情報であってもよい。
Also, the cooperative UE 100 receives data identification information for identifying cooperative transmission data from the base station 300 . Specifically, the coordinated UE 100 (communication processing unit 133 ) receives control information including data identification information from the base station 300 . The cooperative UE 100 (information acquisition unit 131) acquires data identification information from the control information. The data identification information may be, for example, the identifier of the transmitting UE or the representative UE or information generated from the identifier.
リソース割当情報は、データ識別情報と対応付けられる。即ち、リソース割当情報が示すULリソースは、データ識別情報が示す協調送信データの送信のためのリソースである。データ識別情報は、リソース割当情報が含まれる制御情報に含まれてもよく、当該制御情報とは別の制御情報に含まれてもよい。
Resource allocation information is associated with data identification information. That is, the UL resource indicated by the resource allocation information is a resource for transmission of cooperative transmission data indicated by the data identification information. The data identification information may be included in control information including resource allocation information, or may be included in control information separate from the control information.
なお、協調UE100が受信されるリソース割当情報に対応付けられる協調送信データを識別できる場合は、データ識別情報は受信されなくてもよい。例えば、協調UE100が代表UE又は送信UEとして動作する場合、協調UE100は協調送信データを識別できるため、当該協調UE100へデータ識別情報が送信されないとしてもよい。あるいは、協調送信データが1つである場合(換言すると、協調送信データを共有する送信UE100が単一である場合)、データ識別情報の通信は省略されてもよい。
Note that if the coordinated UE 100 can identify the coordinated transmission data associated with the received resource allocation information, the data identification information may not be received. For example, when a coordinated UE 100 operates as a representative UE or a transmitting UE, the coordinated UE 100 can identify coordinated transmission data, so data identification information may not be transmitted to the coordinated UE 100 . Alternatively, when there is one coordinated transmission data (in other words, when there is a single transmitting UE 100 sharing coordinated transmission data), communication of data identification information may be omitted.
-協調送信データの送信
第1の実施形態と同様に、協調UE100は、他の協調UE100と協調して協調送信データを基地局300へ送信する。具体的には、協調UE100(通信処理部133)は、リソース割当情報が示すULリソースを用いて、データ識別情報により識別される協調送信データを基地局300へ送信する。 - Transmission of cooperative transmission data As in the first embodiment, thecooperative UE 100 cooperates with other cooperative UEs 100 to transmit cooperative transmission data to the base station 300 . Specifically, the coordinated UE 100 (communication processing unit 133) transmits coordinated transmission data identified by the data identification information to the base station 300 using the UL resource indicated by the resource allocation information.
第1の実施形態と同様に、協調UE100は、他の協調UE100と協調して協調送信データを基地局300へ送信する。具体的には、協調UE100(通信処理部133)は、リソース割当情報が示すULリソースを用いて、データ識別情報により識別される協調送信データを基地局300へ送信する。 - Transmission of cooperative transmission data As in the first embodiment, the
例えば、協調UE100は、基地局300から受信されたリソース割当情報が示すULリソースを用いて、送信UE100から共有された協調送信データのうちデータ識別情報により識別される協調送信データを基地局300へ送信する。
For example, coordinated UE 100 uses UL resources indicated by resource allocation information received from base station 300 to transmit coordinated transmission data identified by data identification information among coordinated transmission data shared from transmitting UE 100 to base station 300. Send.
(4)受信基地局の動作
受信基地局として動作する基地局300(受信基地局300とも称する。)は、協調基地局情報を代表UE100から受信し、協調基地局情報を用いてULリソースを協調UE100へ割り当て、協調送信データを協調UE100から受信する。また、受信基地局300は、協調基地局情報を用いて協調情報を協調基地局として動作する基地局300(協調基地局300とも称する。)へ送信し、協調基地局300から協調送信データを受信する。 (4) Operation of Receiving Base Station Base station 300 (also referred to as receiving base station 300) operating as a receiving base station receives cooperative base station information fromrepresentative UE 100 and coordinates UL resources using cooperative base station information. Allocate to UE 100 and receive cooperative transmission data from cooperative UE 100 . Also, the receiving base station 300 uses the cooperative base station information to transmit cooperative information to the base station 300 operating as a cooperative base station (also referred to as cooperative base station 300), and receives cooperative transmission data from the cooperative base station 300. do.
受信基地局として動作する基地局300(受信基地局300とも称する。)は、協調基地局情報を代表UE100から受信し、協調基地局情報を用いてULリソースを協調UE100へ割り当て、協調送信データを協調UE100から受信する。また、受信基地局300は、協調基地局情報を用いて協調情報を協調基地局として動作する基地局300(協調基地局300とも称する。)へ送信し、協調基地局300から協調送信データを受信する。 (4) Operation of Receiving Base Station Base station 300 (also referred to as receiving base station 300) operating as a receiving base station receives cooperative base station information from
-協調基地局情報の受信
受信基地局300は、協調基地局情報を代表UE100から受信する。具体的には、受信基地局300(第1通信処理部343)は、協調基地局情報を含む制御情報を代表UE100から受信する。受信基地局300(情報取得部341)は、制御情報に含まれる協調基地局情報を取得する。取得された協調基地局情報は、記憶部330に記憶される。 - Reception of cooperative base station information The receivingbase station 300 receives cooperative base station information from the representative UE 100 . Specifically, the receiving base station 300 (first communication processing unit 343 ) receives control information including cooperative base station information from the representative UE 100 . The receiving base station 300 (information acquisition unit 341) acquires cooperative base station information included in the control information. The acquired cooperative base station information is stored in the storage unit 330 .
受信基地局300は、協調基地局情報を代表UE100から受信する。具体的には、受信基地局300(第1通信処理部343)は、協調基地局情報を含む制御情報を代表UE100から受信する。受信基地局300(情報取得部341)は、制御情報に含まれる協調基地局情報を取得する。取得された協調基地局情報は、記憶部330に記憶される。 - Reception of cooperative base station information The receiving
例えば、協調基地局情報は、受信基地局300以外の基地局300(即ち協調基地局300)及び当該協調基地局300と通信可能な協調UE100を示す。
For example, the cooperative base station information indicates the base stations 300 other than the receiving base station 300 (that is, the cooperative base stations 300) and the cooperative UEs 100 that can communicate with the cooperative base stations 300.
-SRSの受信
受信基地局300は、リファレンス信号をUE100から受信する。第2の実施形態のSRSの送信は第1の実施形態と実質的に同一であるため説明を省略する。 - Reception of SRS The receivingbase station 300 receives the reference signal from the UE 100 . Since transmission of SRS in the second embodiment is substantially the same as in the first embodiment, description thereof is omitted.
受信基地局300は、リファレンス信号をUE100から受信する。第2の実施形態のSRSの送信は第1の実施形態と実質的に同一であるため説明を省略する。 - Reception of SRS The receiving
なお、受信基地局300では、協調基地局情報が示す協調UE100からのSRSは受信されない。また、仮に当該協調UE100からのSRSが受信された場合、受信基地局300は、当該協調UE100から受信されるSRSから観測されるUL伝搬路の情報を、破棄する、又は他の協調UE100から受信されるSRSから観測されるUL伝搬路の情報とは別に記憶する。
Note that the receiving base station 300 does not receive the SRS from the cooperative UE 100 indicated by the cooperative base station information. Also, if the SRS from the coordinated UE 100 is received, the receiving base station 300 discards the information on the UL channel observed from the SRS received from the coordinated UE 100, or receives it from another coordinated UE 100. It is stored separately from the information of the UL propagation path observed from the SRS that is used.
-協調基地局への協調情報の送信
受信基地局300は、受信された協調基地局情報を用いて協調情報を協調基地局300へ送信する。具体的には、受信基地局300(第2通信処理部345)は、協調基地局情報が示す1つ以上の協調UE100を示す情報(協調UE情報とも称する。)を含む制御情報を協調基地局300へ送信する。 - Transmission of cooperative information to cooperative base stationReceiving base station 300 transmits cooperative information to cooperative base station 300 using the received cooperative base station information. Specifically, receiving base station 300 (second communication processing section 345) sends control information including information (also referred to as coordinated UE information) indicating one or more coordinated UEs 100 indicated by coordinated base station information to a coordinated base station. 300.
受信基地局300は、受信された協調基地局情報を用いて協調情報を協調基地局300へ送信する。具体的には、受信基地局300(第2通信処理部345)は、協調基地局情報が示す1つ以上の協調UE100を示す情報(協調UE情報とも称する。)を含む制御情報を協調基地局300へ送信する。 - Transmission of cooperative information to cooperative base station
また、受信基地局300(情報取得部341)は、協調送信データの識別のためのデータ識別情報を取得する。受信基地局300(第2通信処理部345)は、データ識別情報を含む制御情報を協調基地局300へ送信する。例えば、受信基地局300は、協調基地局情報の送信元である送信UE又は代表UEとして動作するUE100の識別子に基づいてデータ識別情報を取得する。なお、データ識別情報は、代表UE100から受信されてもよい。
Also, the receiving base station 300 (information acquisition unit 341) acquires data identification information for identifying cooperative transmission data. The receiving base station 300 (second communication processing unit 345 ) transmits control information including data identification information to the cooperative base station 300 . For example, the receiving base station 300 acquires the data identification information based on the identifier of the UE 100 operating as the transmitting UE or representative UE that is the transmission source of the cooperative base station information. Note that the data identification information may be received from the representative UE 100 .
例えば、受信基地局300は、Xnインターフェース又はX2インターフェースを介して、協調UE情報及びデータ識別情報を含む制御情報を協調基地局300へ送信する。
For example, the receiving base station 300 transmits control information including cooperative UE information and data identification information to the cooperative base station 300 via the Xn interface or the X2 interface.
-リソース割当情報の送信
受信基地局300は、協調送信のためのULリソースを示すリソース割当情報を協調UE100へ送信する。具体的には、受信基地局300(情報取得部341)は、当該リソース割当情報を取得する。受信基地局300(第1通信処理部343)は、リソース割当情報を含む制御情報を協調UE100へ送信する。例えば、受信基地局300は、協調UEとしても動作する代表UE100へリソース割当情報を含む制御情報を送信する。 - Transmission of resource allocation information The receivingbase station 300 transmits resource allocation information indicating UL resources for cooperative transmission to the cooperative UE 100 . Specifically, the receiving base station 300 (information acquisition unit 341) acquires the resource allocation information. The receiving base station 300 (first communication processing unit 343 ) transmits control information including resource allocation information to the cooperative UE 100 . For example, the receiving base station 300 transmits control information including resource allocation information to the representative UE 100 that also operates as a cooperative UE.
受信基地局300は、協調送信のためのULリソースを示すリソース割当情報を協調UE100へ送信する。具体的には、受信基地局300(情報取得部341)は、当該リソース割当情報を取得する。受信基地局300(第1通信処理部343)は、リソース割当情報を含む制御情報を協調UE100へ送信する。例えば、受信基地局300は、協調UEとしても動作する代表UE100へリソース割当情報を含む制御情報を送信する。 - Transmission of resource allocation information The receiving
受信基地局300は、協調UE100から受信されるリファレンス信号に基づきULリソースを決定する。例えば、受信基地局300は、受信基地局300がSRSを受信した協調UE100についてのUL伝搬路の情報に基づき、協調送信のためのULリソースを当該協調UE100に割り当てる。当該ULリソースの割当を示すリソース割当情報を含む制御情報が当該協調UE100へ送信される。
The receiving base station 300 determines UL resources based on the reference signal received from the cooperative UE 100. For example, the receiving base station 300 allocates UL resources for cooperative transmission to the cooperative UE 100 based on UL channel information for the cooperative UE 100 from which the receiving base station 300 has received the SRS. Control information including resource allocation information indicating the allocation of the UL resource is transmitted to the cooperative UE 100.
例えば、受信基地局300(第1通信処理部343)は、リソース割当情報を含むDCIを協調UE100へ送信する。
For example, the receiving base station 300 (first communication processing unit 343) transmits DCI including resource allocation information to the cooperative UE 100.
-協調送信データの受信
受信基地局300は、2つ以上の協調UE100から協調して送信される協調送信データを受信する。具体的には、受信基地局300(第1通信処理部343)は、1つ以上の協調UE100から協調送信データを受信する。例えば、受信基地局300は、代表UEとして動作する協調UE100に割り当てられたULリソースを用いて送信される協調送信データを受信する。 - Receiving Coordinated Transmission Data The receivingbase station 300 receives coordinated transmission data transmitted in cooperation from two or more cooperating UEs 100 . Specifically, the receiving base station 300 (first communication processing unit 343 ) receives cooperative transmission data from one or more cooperative UEs 100 . For example, the receiving base station 300 receives cooperative transmission data transmitted using UL resources allocated to the cooperative UE 100 operating as the representative UE.
受信基地局300は、2つ以上の協調UE100から協調して送信される協調送信データを受信する。具体的には、受信基地局300(第1通信処理部343)は、1つ以上の協調UE100から協調送信データを受信する。例えば、受信基地局300は、代表UEとして動作する協調UE100に割り当てられたULリソースを用いて送信される協調送信データを受信する。 - Receiving Coordinated Transmission Data The receiving
また、受信基地局300(第2通信処理部345)は、協調基地局300から協調送信データを受信する。例えば、受信基地局300は、Xnインターフェース又はX2インターフェースを介して、協調基地局情報が示す協調UE100から受信された協調送信データを協調基地局300から受信する。
Also, the receiving base station 300 (second communication processing unit 345 ) receives cooperative transmission data from the cooperative base station 300 . For example, the receiving base station 300 receives cooperative transmission data received from the cooperative UE 100 indicated by the cooperative base station information from the cooperative base station 300 via the Xn interface or the X2 interface.
受信基地局300は、受信された協調送信データそれぞれに基づき、協調送信データ全体を取得する。例えば、受信基地局300は、協調UE100及び協調基地局300から受信された協調送信データ全体の部分それぞれに基づき結合受信処理(Joint Reception)を行う。なお、受信される協調送信データが協調送信データ全体である場合は、受信基地局300は、受信された協調送信データのうちの1つを選択的に取得してもよい。
The receiving base station 300 acquires the entire coordinated transmission data based on each received coordinated transmission data. For example, the receiving base station 300 performs joint reception processing based on each part of the entire cooperative transmission data received from the cooperative UE 100 and the cooperative base station 300 . Note that if the received coordinated transmission data is the entire coordinated transmission data, the receiving base station 300 may selectively acquire one of the received coordinated transmission data.
(5)協調基地局の動作
協調基地局300は、協調情報を受信基地局300から受信し、受信基地局300へ協調送信データを送信する。また、協調基地局300は、受信された協調情報に基づいて協調UE100へULリソースを割り当て、協調送信データを協調UE100から受信する。 (5) Operation of Cooperative Base StationCooperative base station 300 receives cooperative information from receiving base station 300 and transmits cooperative transmission data to receiving base station 300 . Also, the cooperative base station 300 allocates UL resources to the cooperative UE 100 based on the received cooperative information, and receives cooperative transmission data from the cooperative UE 100 .
協調基地局300は、協調情報を受信基地局300から受信し、受信基地局300へ協調送信データを送信する。また、協調基地局300は、受信された協調情報に基づいて協調UE100へULリソースを割り当て、協調送信データを協調UE100から受信する。 (5) Operation of Cooperative Base Station
-受信基地局からの協調情報の受信
協調基地局300は、協調情報を受信基地局300から受信する。具体的には、協調基地局300(第2通信処理部345)は、協調基地局300と通信可能な1つ以上の協調UE100を示す情報(即ち協調UE情報)を含む制御情報を受信基地局300から受信する。協調基地局300(情報取得部341)は、当該制御情報に含まれる1つ以上の協調UE100を示す情報を取得する。 - Receiving Cooperation Information from Receiving Base Station Cooperatingbase station 300 receives cooperation information from receiving base station 300 . Specifically, the cooperative base station 300 (second communication processing unit 345) receives control information including information indicating one or more cooperative UEs 100 capable of communicating with the cooperative base station 300 (that is, cooperative UE information). 300. The cooperative base station 300 (information acquisition unit 341) acquires information indicating one or more cooperative UEs 100 included in the control information.
協調基地局300は、協調情報を受信基地局300から受信する。具体的には、協調基地局300(第2通信処理部345)は、協調基地局300と通信可能な1つ以上の協調UE100を示す情報(即ち協調UE情報)を含む制御情報を受信基地局300から受信する。協調基地局300(情報取得部341)は、当該制御情報に含まれる1つ以上の協調UE100を示す情報を取得する。 - Receiving Cooperation Information from Receiving Base Station Cooperating
また、協調基地局300(第2通信処理部345)は、協調送信データの識別のためのデータ識別情報を含む制御情報を受信基地局300から受信する。協調基地局300(情報取得部341)は、当該制御情報に含まれるデータ識別情報を取得する。
Also, the cooperative base station 300 (second communication processing unit 345) receives control information including data identification information for identifying cooperative transmission data from the receiving base station 300. The cooperative base station 300 (information acquisition unit 341) acquires data identification information included in the control information.
例えば、協調基地局300は、Xnインターフェース又はX2インターフェースを介して、協調UE情報及びデータ識別情報を含む制御情報を受信基地局300から受信する。
For example, the cooperative base station 300 receives control information including cooperative UE information and data identification information from the receiving base station 300 via the Xn interface or the X2 interface.
-SRSの受信
協調基地局300は、リファレンス信号をUE100から受信する。第2の実施形態のSRSの送信は第1の実施形態と実質的に同一であるため説明を省略する。 - Reception of SRS Thecooperative base station 300 receives the reference signal from the UE 100 . Since transmission of SRS in the second embodiment is substantially the same as in the first embodiment, description thereof is omitted.
協調基地局300は、リファレンス信号をUE100から受信する。第2の実施形態のSRSの送信は第1の実施形態と実質的に同一であるため説明を省略する。 - Reception of SRS The
なお、協調基地局300では、協調UE情報が示す協調UE100以外の他の協調UE100からのSRSは受信されない。また、仮に当該他の協調UE100からのSRSが受信された場合、協調基地局300は、当該他の協調UE100から受信されるSRSから観測されるUL伝搬路の情報を、破棄する、又は協調UE情報が示す協調UE100から受信されるSRSから観測されるUL伝搬路の情報とは別に記憶する。
Note that the cooperative base station 300 does not receive the SRS from the cooperative UE 100 other than the cooperative UE 100 indicated by the cooperative UE information. Also, if the SRS from the other cooperating UE 100 is received, the cooperating base station 300 discards the UL channel information observed from the SRS received from the other cooperating UE 100, or the cooperating UE The information is stored separately from the UL channel information observed from the SRS received from the cooperative UE 100 indicated by the information.
-リソース割当情報とデータ識別情報の送信
協調基地局300は、協調送信のためのULリソースを示すリソース割当情報を協調基地局300と通信可能な協調UE100へ送信する。具体的には、協調基地局300(情報取得部341)は、リソース割当情報を取得する。協調基地局300(第1通信処理部343)は、リソース割当情報を含む制御情報を協調UE情報が示す協調UE100へ送信する。 - Transmission of resource allocation information and data identification informationCooperative base station 300 transmits resource allocation information indicating UL resources for cooperative transmission to cooperative UE 100 capable of communicating with cooperative base station 300 . Specifically, the cooperative base station 300 (information acquisition unit 341) acquires resource allocation information. The cooperative base station 300 (first communication processing unit 343) transmits control information including resource allocation information to the cooperative UE 100 indicated by the cooperative UE information.
協調基地局300は、協調送信のためのULリソースを示すリソース割当情報を協調基地局300と通信可能な協調UE100へ送信する。具体的には、協調基地局300(情報取得部341)は、リソース割当情報を取得する。協調基地局300(第1通信処理部343)は、リソース割当情報を含む制御情報を協調UE情報が示す協調UE100へ送信する。 - Transmission of resource allocation information and data identification information
協調基地局300は、協調UE100から受信されるリファレンス信号に基づきULリソースを決定する。例えば、協調基地局300は、協調基地局300がSRSを受信したUE100であって協調UE情報が示す協調UE100についてのUL伝搬路の情報に基づき、協調送信のためのULリソースを当該協調UE100に割り当てる。当該ULリソースの割当を示すリソース割当情報を含む制御情報が当該協調UE100へ送信される。
The cooperative base station 300 determines UL resources based on the reference signal received from the cooperative UE 100. For example, the coordinated base station 300 is the UE 100 from which the coordinated base station 300 has received the SRS, based on the UL channel information for the coordinated UE 100 indicated by the coordinated UE information, and assigns UL resources for coordinated transmission to the coordinated UE 100. assign. Control information including resource allocation information indicating the allocation of the UL resource is transmitted to the cooperative UE 100.
また、協調基地局300は、協調送信データの識別のためのデータ識別情報を協調UE100へ送信する。具体的には、協調基地局300(情報取得部341)は、データ識別情報を取得する。協調基地局300(第1通信処理部343)は、当該データ識別情報を含む制御情報を協調UE情報が示す協調UE100へ送信する。
Also, the cooperative base station 300 transmits data identification information for identifying cooperative transmission data to the cooperative UE 100 . Specifically, the cooperative base station 300 (information acquisition unit 341) acquires data identification information. The cooperative base station 300 (first communication processing unit 343) transmits control information including the data identification information to the cooperative UE 100 indicated by the cooperative UE information.
例えば、協調基地局300(第1通信処理部343)は、リソース割当情報及びデータ識別情報を含むDCIを協調UE100へ送信する。
For example, the cooperative base station 300 (first communication processing unit 343) transmits DCI including resource allocation information and data identification information to the cooperative UE 100.
-協調送信データの受信
協調基地局300は、協調UE100から協調送信データを受信する。具体的には、協調基地局300(第1通信処理部343)は、協調UE情報が示す協調UE100から協調送信データを受信する。例えば、協調基地局300は、協調UE情報が示す協調UE100に割り当てられたULリソースを用いて送信される協調送信データを受信する。 - Reception of cooperative transmission data Thecooperative base station 300 receives cooperative transmission data from the cooperative UE 100 . Specifically, the cooperative base station 300 (first communication processing unit 343) receives cooperative transmission data from the cooperative UE 100 indicated by the cooperative UE information. For example, the cooperative base station 300 receives cooperative transmission data transmitted using UL resources allocated to the cooperative UE 100 indicated by the cooperative UE information.
協調基地局300は、協調UE100から協調送信データを受信する。具体的には、協調基地局300(第1通信処理部343)は、協調UE情報が示す協調UE100から協調送信データを受信する。例えば、協調基地局300は、協調UE情報が示す協調UE100に割り当てられたULリソースを用いて送信される協調送信データを受信する。 - Reception of cooperative transmission data The
-受信基地局への協調送信データの送信
協調基地局300は、協調送信データを受信基地局300へ送信する。具体的には、協調基地局300(第2通信処理部345)は、協調UE100から受信された協調送信データを受信基地局300へ送信する。例えば、協調基地局300は、Xnインターフェース又はX2インターフェースを介して、協調UE情報が示す協調UE100から受信された協調送信データを受信基地局300へ送信する。 - Transmission of cooperative transmission data to receiving base station Thecooperative base station 300 transmits cooperative transmission data to the receiving base station 300 . Specifically, the cooperative base station 300 (second communication processing unit 345 ) transmits cooperative transmission data received from the cooperative UE 100 to the receiving base station 300 . For example, the cooperative base station 300 transmits cooperative transmission data received from the cooperative UE 100 indicated by the cooperative UE information to the receiving base station 300 via the Xn interface or the X2 interface.
協調基地局300は、協調送信データを受信基地局300へ送信する。具体的には、協調基地局300(第2通信処理部345)は、協調UE100から受信された協調送信データを受信基地局300へ送信する。例えば、協調基地局300は、Xnインターフェース又はX2インターフェースを介して、協調UE情報が示す協調UE100から受信された協調送信データを受信基地局300へ送信する。 - Transmission of cooperative transmission data to receiving base station The
(6)処理の流れ
図10を参照して、本開示の第2の実施形態に係る処理の例を説明する。図10の例では、UE100Aが送信UE、代表UE及び協調UEとして動作し、UE100Bが協調UEとして動作し、基地局300Aが受信基地局として動作し、基地局300Bが協調基地局として動作する。 (6) Flow of Processing An example of processing according to the second embodiment of the present disclosure will be described with reference to FIG. In the example of FIG. 10,UE 100A operates as a transmitting UE, representative UE and cooperative UE, UE 100B operates as a cooperative UE, base station 300A operates as a receiving base station, and base station 300B operates as a cooperative base station.
図10を参照して、本開示の第2の実施形態に係る処理の例を説明する。図10の例では、UE100Aが送信UE、代表UE及び協調UEとして動作し、UE100Bが協調UEとして動作し、基地局300Aが受信基地局として動作し、基地局300Bが協調基地局として動作する。 (6) Flow of Processing An example of processing according to the second embodiment of the present disclosure will be described with reference to FIG. In the example of FIG. 10,
UE100Aは、協調送信データ及び送信割当情報をUE100Bへ送信する(S601)。例えば、UE100Aは、協調送信で基地局300へ送信されるべきデータの送信要求が発生すると、協調送信データについての送信割当情報を取得する。UE100Aは、UE100Bへ協調送信データ及び送信割当情報を送信する。
The UE 100A transmits cooperative transmission data and transmission allocation information to the UE 100B (S601). For example, when a transmission request for data to be transmitted to base station 300 by coordinated transmission is generated, UE 100A acquires transmission allocation information for coordinated transmission data. The UE 100A transmits cooperative transmission data and transmission allocation information to the UE 100B.
UE100A及びUE100Bは、SRSをそれぞれ基地局300A及び基地局300Bへ送信する(S603)。例えば、UE100A及びUE100Bは、基地局300A及び基地局300BからSRSリクエストをそれぞれ受信した後は、定期的にSRSを基地局300A及び基地局300Bへそれぞれ送信する。なお、図10では、協調送信データの共有後に送信されるSRSが用いられるが、その前に送信されるSRSが用いられてもよい。
UE 100A and UE 100B transmit SRS to base station 300A and base station 300B, respectively (S603). For example, UE 100A and UE 100B periodically transmit SRS to base station 300A and base station 300B after receiving SRS requests from base station 300A and base station 300B, respectively. In addition, in FIG. 10, the SRS transmitted after sharing the cooperative transmission data is used, but the SRS transmitted before that may be used.
UE100Aは、協調基地局情報を基地局300Aへ送信する(S605)。例えば、UE100Aは、協調送信データが共有されたUE100Bが通信可能な基地局300B及びUE100Bを示す協調基地局情報を基地局300Aへ送信する。
The UE 100A transmits cooperative base station information to the base station 300A (S605). For example, the UE 100A transmits to the base station 300A cooperative base station information indicating the base station 300B and the UE 100B with which the UE 100B with which cooperative transmission data is shared can communicate.
基地局300Aは、協調UE情報及びデータ識別情報を基地局300Bへ送信する(S607)。例えば、基地局300Aは、協調基地局情報が示すUE100Bを示す協調UE情報を取得する。また、基地局300Aは、協調基地局情報の送信元であるUE100Aの識別子に基づきデータ識別情報を取得する。基地局300Aは、取得された協調UE情報及びデータ識別情報を協調基地局情報が示す基地局300Bへ送信する。
The base station 300A transmits cooperative UE information and data identification information to the base station 300B (S607). For example, the base station 300A acquires coordinated UE information indicating the UE 100B indicated by the coordinated base station information. Also, the base station 300A acquires data identification information based on the identifier of the UE 100A, which is the transmission source of the cooperative base station information. The base station 300A transmits the acquired cooperative UE information and data identification information to the base station 300B indicated by the cooperative base station information.
基地局300Aは、リソース割当情報を協調UEとして動作するUE100Aへ送信する(S609)。例えば、基地局300Aは、SRSを受信したUE100Aについて、SRSから観測したUL伝搬路の情報を用いて協調送信用のULリソースを割り当てる。基地局300Aは、割り当てたULリソースを示すリソース割当情報をUE100Aへ送信する。
The base station 300A transmits resource allocation information to the UE 100A operating as a cooperative UE (S609). For example, the base station 300A allocates UL resources for cooperative transmission to the UE 100A that has received the SRS using UL channel information observed from the SRS. The base station 300A transmits resource allocation information indicating the allocated UL resource to the UE 100A.
基地局300Bは、リソース割当情報及びデータ識別情報を協調UEとして動作するUE100Bへ送信する(S611)。例えば、基地局300Bは、基地局300Aから受信された協調UE情報が示すUE100BであってSRSを受信したUE100Bについて、SRSから観測したUL伝搬路の情報を用いて協調送信用のULリソースを割り当てる。UE200からもSRSが受信されているが、UE200は協調UE情報が示すUEではないため、基地局300BはUE200には協調送信用のULリソースを割り当てない。基地局300Bは、割り当てたULリソースを示すリソース割当情報及び基地局300Aから受信したデータ識別情報をUE100Bへ送信する。
The base station 300B transmits resource allocation information and data identification information to the UE 100B operating as a cooperative UE (S611). For example, the base station 300B allocates UL resources for coordinated transmission to the UE 100B indicated by the coordinated UE information received from the base station 300A and having received the SRS using UL channel information observed from the SRS. . The SRS is also received from UE200, but UE200 is not the UE indicated by the coordinated UE information, so base station 300B does not allocate UL resources for coordinated transmission to UE200. The base station 300B transmits resource allocation information indicating the allocated UL resource and data identification information received from the base station 300A to the UE 100B.
UE100Aは、受信されたリソース割当情報に基づいて協調送信データを基地局300Aへ送信する(S613)。例えば、UE100Aは、割り当てられたULリソースを用いて協調送信データを基地局300Aへ送信する。
The UE 100A transmits cooperative transmission data to the base station 300A based on the received resource allocation information (S613). For example, the UE 100A uses the assigned UL resource to transmit coordinated transmission data to the base station 300A.
UE100Bは、受信されたリソース割当情報及びデータ識別情報に基づいて協調送信データを基地局300Bへ送信する(S615)。例えば、UE100Aは、割り当てられたULリソースを用いて、データ識別情報により識別される協調送信データを基地局300Bへ送信する。
The UE 100B transmits cooperative transmission data to the base station 300B based on the received resource allocation information and data identification information (S615). For example, the UE 100A uses the assigned UL resource to transmit cooperative transmission data identified by the data identification information to the base station 300B.
基地局300Bは、協調送信データを基地局300Aへ送信する(S617)。例えば、基地局300Bは、UE100Bから受信された協調送信データを協調UE情報の送信元である基地局300Aへ送信する。基地局300Aは、基地局300Bから受信された協調送信データ及びUE100Aから受信された協調送信データに基づきUE100Aの協調送信データを取得する。
The base station 300B transmits cooperative transmission data to the base station 300A (S617). For example, the base station 300B transmits the coordinated transmission data received from the UE 100B to the base station 300A, which is the transmission source of the coordinated UE information. The base station 300A acquires the coordinated transmission data of the UE 100A based on the coordinated transmission data received from the base station 300B and the coordinated transmission data received from the UE 100A.
(7)リソース割当
図11を参照して、本開示の第2の実施形態に係るリソース割当の例を説明する。図11で示される各ブロックは、データ又はリソースブロックである。 (7) Resource Allocation An example of resource allocation according to the second embodiment of the present disclosure will be described with reference to FIG. Each block shown in FIG. 11 is a data or resource block.
図11を参照して、本開示の第2の実施形態に係るリソース割当の例を説明する。図11で示される各ブロックは、データ又はリソースブロックである。 (7) Resource Allocation An example of resource allocation according to the second embodiment of the present disclosure will be described with reference to FIG. Each block shown in FIG. 11 is a data or resource block.
協調送信データを受信する各基地局300に割り当てられる協調送信データについて先述の図10のケースで説明する。図10のケースでは、協調送信データは分割されて基地局300A及び基地局300Bにより受信される。図11の左に示される協調送信データのブロックサイズは、図11の中央に示される基地局300Aが受信するデータに対応するブロックサイズ及び基地局300Bが受信するデータに対応するブロックサイズの和と同一である。なお、協調送信データは基地局300A及び基地局300Bで重複して割り当てられてもよい。
The cooperative transmission data assigned to each base station 300 that receives the cooperative transmission data will be explained in the case of FIG. 10 mentioned above. In the case of FIG. 10, the coordinated transmission data is divided and received by base station 300A and base station 300B. The block size of cooperative transmission data shown on the left side of FIG. 11 is the sum of the block size corresponding to the data received by base station 300A shown in the center of FIG. 11 and the block size corresponding to the data received by base station 300B. are identical. Note that coordinated transmission data may be redundantly assigned to base station 300A and base station 300B.
協調送信データを送信する各UE100に割り当てられるリソースについて図10のケースで説明する。図10のケースでは、UE100A及びUE100Bの各々には基地局300A及び基地局300Bの各々からそれぞれULリソースが提供される。例えば、図11の右に示されるように、UE100Aには基地局300Aへのデータ送信のためのリソース、UE100Bには基地局300Bへのデータ送信のためのリソースが割り当てられる。
The resources allocated to each UE 100 that transmits cooperative transmission data will be explained using the case of FIG. In the case of FIG. 10, UE 100A and UE 100B are each provided with UL resources from base station 300A and base station 300B, respectively. For example, as shown on the right side of FIG. 11, UE 100A is allocated resources for data transmission to base station 300A, and UE 100B is allocated resources for data transmission to base station 300B.
なお、UE100A及びUE100Bに割り当てられるリソースのサイズは、UE100A及びUE100Bそれぞれが送信すべき協調送信データのサイズに応じていてもよい。
Note that the sizes of the resources allocated to the UE 100A and the UE 100B may correspond to the sizes of the cooperative transmission data to be transmitted by each of the UE 100A and the UE 100B.
上記のように、本開示の第2の実施形態によれば、代表UE100が協調基地局情報を受信基地局300へ送信し、受信基地局300が当該協調基地局情報を受信する。また、協調基地局300が協調基地局情報が示すUE100を示す協調UE情報を受信基地局300から受信する。そのため、協調基地局300は、自身に協調送信データを送信する協調UE100を把握し、ULリソースを割り当てることができる。また、協調UE100は、協調基地局300からデータ識別情報を受信する。そのため、協調基地局300へ送信すべき協調送信データを識別することができる。したがって、通信可能な基地局がそれぞれ異なるUE群であっても協調的にデータを送信することが可能になる。
As described above, according to the second embodiment of the present disclosure, the representative UE 100 transmits cooperative base station information to the receiving base station 300, and the receiving base station 300 receives the cooperative base station information. Also, the cooperative base station 300 receives cooperative UE information indicating the UE 100 indicated by the cooperative base station information from the receiving base station 300 . Therefore, cooperative base station 300 can recognize cooperative UE 100 that transmits cooperative transmission data to itself and allocate UL resources. Also, the cooperative UE 100 receives data identification information from the cooperative base station 300 . Therefore, cooperative transmission data to be transmitted to cooperative base station 300 can be identified. Therefore, it is possible to cooperatively transmit data even if the UE groups have different communicable base stations.
<2-3.変形例>
図12を参照して、本開示の第2の実施形態に係る第1~第5の変形例を説明する。図12の例では、UE100Aが送信UE及び協調UEとして動作し、UE100Bが代表UE及び協調UEとして動作し、基地局300Aが協調基地局として動作し、基地局300Bが受信基地局として動作する。なお、これらの変形例のうちの2つ以上が組み合わせられてもよい。また、第1の実施形態の変形例が第2の実施形態に適用されてもよい。 <2-3. Variation>
First to fifth modifications according to the second embodiment of the present disclosure will be described with reference to FIG. In the example of FIG. 12, theUE 100A operates as a transmitting UE and a cooperative UE, the UE 100B operates as a representative UE and a cooperative UE, the base station 300A operates as a cooperative base station, and the base station 300B operates as a receiving base station. Note that two or more of these modifications may be combined. Also, the modified example of the first embodiment may be applied to the second embodiment.
図12を参照して、本開示の第2の実施形態に係る第1~第5の変形例を説明する。図12の例では、UE100Aが送信UE及び協調UEとして動作し、UE100Bが代表UE及び協調UEとして動作し、基地局300Aが協調基地局として動作し、基地局300Bが受信基地局として動作する。なお、これらの変形例のうちの2つ以上が組み合わせられてもよい。また、第1の実施形態の変形例が第2の実施形態に適用されてもよい。 <2-3. Variation>
First to fifth modifications according to the second embodiment of the present disclosure will be described with reference to FIG. In the example of FIG. 12, the
(1)第1の変形例
本開示の第2の実施形態の上述した例では、送信UE100は協調基地局情報を記憶部120から取得する。しかし、本開示の第2の実施形態に係る協調基地局情報の取得方法は、この例に限定されない。 (1) First Modification In the above-described example of the second embodiment of the present disclosure, the transmittingUE 100 acquires cooperative base station information from the storage unit 120 . However, the method for obtaining cooperative base station information according to the second embodiment of the present disclosure is not limited to this example.
本開示の第2の実施形態の上述した例では、送信UE100は協調基地局情報を記憶部120から取得する。しかし、本開示の第2の実施形態に係る協調基地局情報の取得方法は、この例に限定されない。 (1) First Modification In the above-described example of the second embodiment of the present disclosure, the transmitting
本開示の第2の実施形態の第1の変形例として、送信UE100は、直接通信を用いて協調基地局情報を取得してもよい。具体的には、送信UE100(通信処理部133)は、協調UE100が通信可能な基地局300を示す情報を含む制御情報を直接通信で協調UE100から受信する。送信UE100(情報取得部131)は、当該制御情報の送信元である協調UE100及び当該制御情報に含まれる基地局300を示す基地局情報を取得する。また、協調UE100(情報取得部131)は、協調UE100が通信可能な基地局300を示す情報取得する。協調UE100(通信処理部133)は、当該情報を含む制御情報を送信UE100へ送信する。
As a first modification of the second embodiment of the present disclosure, the transmitting UE 100 may acquire cooperative base station information using direct communication. Specifically, the transmitting UE 100 (communication processing unit 133) receives control information including information indicating base stations 300 with which the cooperative UE 100 can communicate from the cooperative UE 100 by direct communication. The transmitting UE 100 (information acquisition unit 131) acquires base station information indicating the coordinated UE 100 that is the transmission source of the control information and the base station 300 included in the control information. Also, the coordinated UE 100 (information acquisition unit 131) acquires information indicating base stations 300 with which the coordinated UE 100 can communicate. The cooperative UE 100 (communication processing unit 133) transmits control information including the information to the transmitting UE 100.
例えば、図12の例では、UE100Bは、協調送信データ、送信割当情報及び協調基地局情報をUE100Aから受信する(S651)。なお、協調基地局情報は、協調送信データ及び送信割当情報とは別に受信されてもよい。
For example, in the example of FIG. 12, the UE 100B receives cooperative transmission data, transmission allocation information, and cooperative base station information from the UE 100A (S651). Cooperative base station information may be received separately from cooperative transmission data and transmission allocation information.
なお、協調基地局300を示す情報のみが送信UE100に送信され、送信UE100において当該協調基地局300と通信可能な協調UE100を示す情報が付加されて協調基地局情報が取得されてもよい。例えば、送信UE100は、協調UE100と通信可能な基地局を示す情報を、サイドリンク通信で協調UE100から受信する。送信UE100は、当該情報の送信元である協調UE100及び当該情報が示す基地局300を示す協調基地局情報を取得する。
Only the information indicating the cooperative base station 300 may be transmitted to the transmitting UE 100, and the transmitting UE 100 may acquire the cooperative base station information by adding information indicating the cooperative UE 100 capable of communicating with the cooperative base station 300. For example, the transmitting UE 100 receives information indicating base stations capable of communicating with the cooperative UE 100 from the cooperative UE 100 through sidelink communication. The transmitting UE 100 acquires cooperative base station information indicating the cooperative UE 100 that is the transmission source of the information and the base station 300 indicated by the information.
これにより、協調UE100が通信可能な基地局300をより確実に把握することができる。したがって、協調送信が失敗する可能性を低下させることができる。
As a result, the base stations 300 with which the cooperative UE 100 can communicate can be more reliably grasped. Therefore, the possibility of coordinated transmission failure can be reduced.
(2)第2の変形例
本開示の第2の実施形態の上述した例では、協調基地局300及び協調基地局300と通信可能な協調UE100を示す協調基地局情報が代表UE100から受信基地局300へ送信される。しかし、本開示の第2の実施形態に係る基地局情報は、この例に限定されない。 (2) Second Modification In the above-described example of the second embodiment of the present disclosure, cooperative base station information indicatingcooperative base station 300 and cooperative UE 100 capable of communicating with cooperative base station 300 is received from representative UE 100. 300. However, the base station information according to the second embodiment of the present disclosure is not limited to this example.
本開示の第2の実施形態の上述した例では、協調基地局300及び協調基地局300と通信可能な協調UE100を示す協調基地局情報が代表UE100から受信基地局300へ送信される。しかし、本開示の第2の実施形態に係る基地局情報は、この例に限定されない。 (2) Second Modification In the above-described example of the second embodiment of the present disclosure, cooperative base station information indicating
本開示の第2の実施形態の第2の変形例として、受信基地局300及び受信基地局300と通信可能な協調UE100を示す基地局情報が代表UE100から受信基地局300へ送信されてもよい。具体的には、代表UE100(情報取得部131)は、受信基地局300と通信可能な1つ以上の協調UE100及び受信基地局300を示す別の基地局情報を取得する。代表UE100(通信処理部133)は、当該別の基地局情報を含む制御情報を受信基地局300へ送信する。
As a second modification of the second embodiment of the present disclosure, base station information indicating the receiving base station 300 and the cooperative UE 100 capable of communicating with the receiving base station 300 may be transmitted from the representative UE 100 to the receiving base station 300. . Specifically, the representative UE 100 (information acquisition unit 131 ) acquires one or more cooperative UEs 100 that can communicate with the receiving base station 300 and other base station information indicating the receiving base station 300 . The representative UE 100 (communication processing unit 133 ) transmits control information including the other base station information to the receiving base station 300 .
例えば、図12の例では、UE100Bは、協調送信データ、送信割当情報及び協調基地局情報をUE100Aから受信する(S651)。
For example, in the example of FIG. 12, the UE 100B receives cooperative transmission data, transmission allocation information, and cooperative base station information from the UE 100A (S651).
UE100Bは、協調基地局情報及び別の基地局情報を基地局300Bへ送信する(S655)。例えば、UE100Bは、UE100Bが通信可能な基地局300B及びUE100Bを示す別の基地局情報を取得する。UE100Bは、当該別の基地局情報及びUE100Aから受信した協調基地局情報を基地局300Bへ送信する。
The UE 100B transmits cooperative base station information and other base station information to the base station 300B (S655). For example, the UE 100B acquires another base station information indicating the base station 300B and the UE 100B with which the UE 100B can communicate. The UE 100B transmits the other base station information and the cooperative base station information received from the UE 100A to the base station 300B.
なお、上記別の基地局情報及び協調基地局情報を含む基地局情報が受信基地局300へ送信されてもよい。即ち、2つ以上の協調UE100及び当該2つ以上の協調UE100がそれぞれ通信可能な基地局300を示す基地局情報が受信基地局300へ送信されてよい。
Note that the base station information including the different base station information and the cooperative base station information may be transmitted to the receiving base station 300 . That is, two or more cooperative UEs 100 and base station information indicating base stations 300 with which the two or more cooperative UEs 100 can communicate may be transmitted to the receiving base station 300 .
これにより、受信基地局300と通信可能な協調UE100を受信基地局300に示すことができる。そのため、協調基地局情報を送信する代表UE100が協調UEではない場合に、受信基地局300はULリソースを割り当てるべき協調UE100を決定することができる。
As a result, it is possible to indicate to the receiving base station 300 the cooperative UEs 100 that can communicate with the receiving base station 300 . Therefore, when the representative UE 100 that transmits the coordinated base station information is not a coordinated UE, the receiving base station 300 can determine the coordinated UE 100 to which UL resources should be allocated.
(3)第3の変形例
本開示の第2の実施形態の上述した例では、協調基地局情報が代表UEとして動作する送信UE100から受信基地局300へ送信される。しかし、本開示の第2の実施形態に係る送信UE100は、この例に限定されない。 (3) Third Modification In the above-described example of the second embodiment of the present disclosure, cooperative base station information is transmitted from transmittingUE 100 operating as a representative UE to receiving base station 300 . However, the transmitting UE 100 according to the second embodiment of the present disclosure is not limited to this example.
本開示の第2の実施形態の上述した例では、協調基地局情報が代表UEとして動作する送信UE100から受信基地局300へ送信される。しかし、本開示の第2の実施形態に係る送信UE100は、この例に限定されない。 (3) Third Modification In the above-described example of the second embodiment of the present disclosure, cooperative base station information is transmitted from transmitting
本開示の第2の実施形態の第3の変形例として、送信UE100は、代表UEとして動作しなくてもよい。例えば、UE100は、送信UE及び協調UEとして動作する。この場合、送信UE100は、協調基地局情報を代表UEとして動作する他のUE100へ送信する。これにより、送信UE100と基地局300との通信量を削減することができる。
As a third modification of the second embodiment of the present disclosure, the transmitting UE 100 may not operate as the representative UE. For example, UE 100 operates as a transmitting UE and a coordinating UE. In this case, the transmitting UE 100 transmits the cooperative base station information to another UE 100 operating as a representative UE. Thereby, the amount of communication between the transmitting UE 100 and the base station 300 can be reduced.
また、代表UE100(通信処理部133)は、協調基地局情報を含む制御情報を協調UEではない他のUE100(例えば送信UE100)から直接通信で受信する。代表UE100(情報取得部131)は、当該制御情報に含まれる協調基地局情報を取得する。代表UE100(通信処理部133)は、取得された協調基地局情報を受信基地局300へ送信する。これにより、送信UE100が基地局300と通信できなくても協調送信に関する制御情報を基地局300へ送信することができる。
Also, the representative UE 100 (communication processing unit 133) receives control information including cooperative base station information from other UEs 100 (eg, transmitting UE 100) that are not cooperative UEs through direct communication. The representative UE 100 (information acquisition unit 131) acquires cooperative base station information included in the control information. The representative UE 100 (communication processing unit 133 ) transmits the acquired cooperative base station information to the receiving base station 300 . By this means, even if the transmitting UE 100 cannot communicate with the base station 300, it is possible to transmit control information related to cooperative transmission to the base station 300. FIG.
例えば、図12の例では、UE100Aは、協調基地局情報をUE100Bへ送信する(S651)。UE100Aの代わりに、UE100Bが協調基地局情報を基地局300Bへ送信する。
For example, in the example of FIG. 12, the UE 100A transmits cooperative base station information to the UE 100B (S651). Instead of UE 100A, UE 100B transmits cooperative base station information to base station 300B.
(4)第4の変形例
本開示の第2の実施形態の上述した例では、UE100Aが代表UEとして決定されている。しかし、本開示の第2の実施形態に係る代表UEの決定方法は、この例に限定されない。 (4) Fourth Modification In the above-described example of the second embodiment of the present disclosure, theUE 100A is determined as the representative UE. However, the representative UE determination method according to the second embodiment of the present disclosure is not limited to this example.
本開示の第2の実施形態の上述した例では、UE100Aが代表UEとして決定されている。しかし、本開示の第2の実施形態に係る代表UEの決定方法は、この例に限定されない。 (4) Fourth Modification In the above-described example of the second embodiment of the present disclosure, the
本開示の第2の実施形態の第4の変形例として、代表UE100は、送信UE100と直接通信で通信可能であり複数の基地局300のうちの少なくとも1つと通信可能なUE100の中から選出されてもよい。具体的には、UE100(情報取得部131)は、受信基地局300と通信可能なUE100を示す代表UE情報を取得する。UE100(通信処理部133)は、UE100が代表UE情報により示されるUE100である場合、協調基地局情報を含む制御情報を受信基地局300へ送信する。
As a fourth modification of the second embodiment of the present disclosure, the representative UE 100 is selected from among the UEs 100 that can communicate with the transmitting UE 100 by direct communication and can communicate with at least one of the plurality of base stations 300. may Specifically, UE 100 (information acquisition section 131 ) acquires representative UE information indicating UE 100 that can communicate with receiving base station 300 . UE 100 (communication processing unit 133 ) transmits control information including cooperative base station information to receiving base station 300 when UE 100 is UE 100 indicated by representative UE information.
例えば、代表UE100は、基地局300と通信可能なUE100である協調UE100の中から選出される。送信UE100は、協調UE100の中から代表UE100を選出し、当該代表UE100を示す代表UE情報を協調UEへ送信する。協調UE100は、受信された代表UE情報が自身を示すか否かを判定する。代表UE情報が自身を示す場合、協調UE100は、代表UEとして動作する。
For example, the representative UE 100 is selected from the cooperative UEs 100 that are UEs 100 that can communicate with the base station 300 . The transmitting UE 100 selects a representative UE 100 from among the coordinating UEs 100 and transmits representative UE information indicating the representative UE 100 to the coordinating UEs. Cooperating UE 100 determines whether the received representative UE information indicates itself. When the representative UE information indicates itself, the cooperative UE 100 operates as a representative UE.
例えば、図12の例では、UE100AにおいてUE100Bを示す代表UE情報が取得され、当該代表UE情報がUE100Bへ送信される。代表UE情報を受信したUE100Bは、代表UE情報がUE100Bを示すため、代表UEとして動作する。
For example, in the example of FIG. 12, representative UE information indicating UE 100B is acquired by UE 100A, and the representative UE information is transmitted to UE 100B. The UE 100B that has received the representative UE information operates as the representative UE because the representative UE information indicates the UE 100B.
これにより、複数の基地局300のうちの少なくとも1つと通信可能な代表UE100を選出することができる。そのため、送信UE100が複数の基地局300のいずれとも通信できない場合であっても、協調基地局情報などの協調送信のための制御情報を基地局300へ送信することができる。
Thereby, a representative UE 100 that can communicate with at least one of the plurality of base stations 300 can be selected. Therefore, even if the transmitting UE 100 cannot communicate with any of the plurality of base stations 300 , it is possible to transmit control information for cooperative transmission such as cooperative base station information to the base station 300 .
(5)第5の変形例
本開示の第2の実施形態の上述した例では、送信割当情報は協調UE100の各々が送信すべき協調送信データ全体の部分を示す。しかし、本開示の第2の実施形態に係る送信割当情報は、この例に限定されない。 (5) Fifth Modification In the above-described example of the second embodiment of the present disclosure, the transmission allocation information indicates the portion of the entire cooperative transmission data that eachcooperative UE 100 should transmit. However, the transmission allocation information according to the second embodiment of the present disclosure is not limited to this example.
本開示の第2の実施形態の上述した例では、送信割当情報は協調UE100の各々が送信すべき協調送信データ全体の部分を示す。しかし、本開示の第2の実施形態に係る送信割当情報は、この例に限定されない。 (5) Fifth Modification In the above-described example of the second embodiment of the present disclosure, the transmission allocation information indicates the portion of the entire cooperative transmission data that each
本開示の第2の実施形態の第5の変形例として、複数の基地局300において、当該複数の基地局300がそれぞれ受信する協調送信データ全体の部分を示すデータ部分情報(受信割当情報とも称する。)が共有されてもよい。具体的には、受信基地局300(情報取得部341)は、協調基地局300と通信可能な協調UE100から協調基地局300へ送信される協調送信データの部分に関するデータ部分情報を取得する。受信基地局300(第2通信処理部345)は、当該データ部分情報を含む制御情報を協調基地局300へ送信する。協調基地局300(第2通信処理部345)は、当該データ部分情報を含む制御情報を受信基地局300から受信する。協調基地局300(情報取得部341)は、当該制御情報に含まれるデータ部分情報を取得する。
As a fifth modification of the second embodiment of the present disclosure, in a plurality of base stations 300, data portion information (also referred to as reception allocation information) indicating a portion of the entire cooperative transmission data received by each of the plurality of base stations 300 .) may be shared. Specifically, the receiving base station 300 (information acquisition unit 341 ) acquires data part information related to the part of the cooperative transmission data transmitted from the cooperative UE 100 capable of communicating with the cooperative base station 300 to the cooperative base station 300 . The receiving base station 300 (second communication processing unit 345 ) transmits control information including the data portion information to the cooperative base station 300 . The cooperative base station 300 (second communication processing unit 345 ) receives control information including the data portion information from the receiving base station 300 . The cooperative base station 300 (information acquisition unit 341) acquires data portion information included in the control information.
さらに、基地局300(情報取得部341)は、当該データ部分情報に基づき決定されるアップリンクリソースを示すリソース割当情報を取得する。基地局300(第1通信処理部343)は、当該リソース割当情報を含む制御情報を1つ以上の協調UE100へ送信する。
Further, the base station 300 (information acquisition unit 341) acquires resource allocation information indicating uplink resources determined based on the data part information. The base station 300 (first communication processing unit 343) transmits control information including the resource allocation information to one or more cooperative UEs 100.
例えば、図12の例では、基地局300Bは、協調UE情報、データ識別情報及び受信割当情報を基地局300Aへ送信する(S657)。なお、協調UE情報、データ識別情報及び受信割当情報はそれぞれ別に通信されてもよい。基地局300Aは、受信された受信割当情報に応じたULリソースを協調送信用に確保する。基地局300Bもまた、受信割当情報に応じたULリソースを協調送信用に確保する。
For example, in the example of FIG. 12, the base station 300B transmits cooperative UE information, data identification information and reception allocation information to the base station 300A (S657). Note that the coordinated UE information, the data identification information, and the reception allocation information may be communicated separately. The base station 300A reserves UL resources for cooperative transmission according to the received reception allocation information. The base station 300B also reserves UL resources for cooperative transmission according to the reception allocation information.
基地局300Bは、リソース割当情報をUE100Bへ送信する(S659)。例えば、基地局300Bは、確保されたULリソースの中から、協調UE情報に基づいて協調基地局情報の送信元であるUE100BにULリソースを割り当てる。基地局300Bは、当該ULリソースを示すリソース割当情報をUE100Bへ送信する。
The base station 300B transmits resource allocation information to the UE 100B (S659). For example, the base station 300B allocates UL resources from the secured UL resources to the UE 100B, which is the transmission source of the cooperative base station information, based on the cooperative UE information. The base station 300B transmits resource allocation information indicating the UL resource to the UE 100B.
基地局300Aは、リソース割当情報及びデータ識別情報をUE100Aへ送信する(S661)。例えば、基地局300Aは、確保されたULリソースの中から、協調UE情報に基づいて協調UE情報が示すUE100にULリソースを割り当てる。基地局300Aは、当該ULリソースを示すリソース割当情報及びデータ識別情報をUE100Aへ送信する。
The base station 300A transmits resource allocation information and data identification information to the UE 100A (S661). For example, the base station 300A allocates UL resources to the UE 100 indicated by the coordinated UE information based on the coordinated UE information from among the secured UL resources. The base station 300A transmits resource allocation information indicating the UL resource and data identification information to the UE 100A.
なお、受信割当情報は、受信基地局300にて取得されてもよい。例えば、受信基地局300は、代表UE100から受信された協調基地局情報が示す協調基地局300の数に応じた受信割当情報を取得する。なお、受信基地局300は、当該協調基地局300及び受信基地局300の負荷状況に応じた受信割当情報を取得してもよい。この場合、受信割当情報は、代表UE100へ送信されてもよい。代表UE100は、受信割当情報に応じた送信割当情報を取得する。
Note that the reception allocation information may be acquired by the reception base station 300. For example, the receiving base station 300 acquires reception allocation information according to the number of cooperative base stations 300 indicated by the cooperative base station information received from the representative UE 100 . Note that the receiving base station 300 may acquire reception allocation information according to the load status of the cooperative base station 300 and the receiving base station 300 . In this case, the reception allocation information may be transmitted to the representative UE 100. The representative UE 100 acquires transmission allocation information according to the reception allocation information.
また、受信割当情報は、代表UE100から取得されてもよい。例えば、代表UE100は、送信割当情報に応じた受信割当情報を取得する。より具体的には、代表UE100は、送信割当情報が示す協調送信データ全体の部分と当該部分を送信する協調UE100が通信可能な基地局300とに応じて基地局300へ送信される協調送信データの部分を示す受信割当情報を取得する。
Also, the reception allocation information may be acquired from the representative UE 100. For example, the representative UE 100 acquires reception allocation information according to transmission allocation information. More specifically, the representative UE 100 transmits the cooperative transmission data to the base station 300 according to the part of the entire cooperative transmission data indicated by the transmission allocation information and the base station 300 with which the cooperative UE 100 that transmits the part can communicate. Acquire reception allocation information indicating the part of
また、送信割当情報及び受信割当情報は、1つの情報に含まれてもよい。例えば、受信割当情報は、送信割当情報に含まれてもよい。送信割当情報は、例えば、図11で示されるような割当情報であってもよい。
Also, the transmission allocation information and the reception allocation information may be included in one piece of information. For example, reception quota information may be included in transmission quota information. The transmission allocation information may be allocation information as shown in FIG. 11, for example.
これにより、受信基地局300及び協調基地局300それぞれの状況に適した配分で協調送信データを受信することができる。そのため、基地局300の負荷分散が可能となる。
<3.第3の実施形態>
本開示の第3の実施形態を説明する。本開示の第3の実施形態は、第2の実施形態に第1の実施形態を適用した実施形態である。なお、第1及び第2の実施形態と実質的に同一である機能又は構成については説明を省略する。
<3-1.システムの構成>
図13を参照して、本開示の第3の実施形態に係るシステム3の構成の例を説明する。図13を参照すると、システム3は、UE100(UE100A、UE100B及びUE100C)、UE200及び基地局300(基地局300A及び基地局300B)を含む。 As a result, it is possible to receive cooperative transmission data with distribution suitable for the situation of each of the receivingbase station 300 and the cooperative base station 300 . Therefore, load distribution of the base station 300 is possible.
<3. Third Embodiment>
A third embodiment of the present disclosure will be described. The third embodiment of the present disclosure is an embodiment in which the first embodiment is applied to the second embodiment. Description of functions or configurations that are substantially the same as those of the first and second embodiments will be omitted.
<3-1. System configuration>
An example configuration of thesystem 3 according to the third embodiment of the present disclosure will be described with reference to FIG. 13 . Referring to FIG. 13, system 3 includes UE 100 (UE 100A, UE 100B and UE 100C), UE 200 and base station 300 (base station 300A and base station 300B).
<3.第3の実施形態>
本開示の第3の実施形態を説明する。本開示の第3の実施形態は、第2の実施形態に第1の実施形態を適用した実施形態である。なお、第1及び第2の実施形態と実質的に同一である機能又は構成については説明を省略する。
<3-1.システムの構成>
図13を参照して、本開示の第3の実施形態に係るシステム3の構成の例を説明する。図13を参照すると、システム3は、UE100(UE100A、UE100B及びUE100C)、UE200及び基地局300(基地局300A及び基地局300B)を含む。 As a result, it is possible to receive cooperative transmission data with distribution suitable for the situation of each of the receiving
<3. Third Embodiment>
A third embodiment of the present disclosure will be described. The third embodiment of the present disclosure is an embodiment in which the first embodiment is applied to the second embodiment. Description of functions or configurations that are substantially the same as those of the first and second embodiments will be omitted.
<3-1. System configuration>
An example configuration of the
例えば、システム3は、3GPPのTSに準拠したシステムである。より具体的には、例えば、システム3は、5G又はNRのTSに準拠したシステムである。当然ながら、システム3は、この例に限定されない。
For example, System 3 is a 3GPP TS-compliant system. More specifically, for example, the system 3 is a 5G or NR TS compliant system. Of course, system 3 is not limited to this example.
(1)基地局300
基地局300(基地局300A及び基地局300B)は、基地局300のカバレッジエリア内に位置するUEと通信する。また、基地局300は、他の基地局300とも通信する。 (1)Base station 300
Base station 300 (base station 300A and base station 300B) communicates with UEs located within the coverage area of base station 300 . Base station 300 also communicates with other base stations 300 .
基地局300(基地局300A及び基地局300B)は、基地局300のカバレッジエリア内に位置するUEと通信する。また、基地局300は、他の基地局300とも通信する。 (1)
Base station 300 (
(2)UE100及びUE200
UE100(UE100A、UE100B及びUE100C)及びUE200の各々は、自身が位置するカバレッジエリアを持つ基地局300と通信する。例えば、図13の例では、UE100A、UE100B及びUE200は基地局300Aと通信し、UE100Cは基地局300Bと通信する。 (2) UE100 and UE200
Each of UE 100 (UE 100A, UE 100B and UE 100C) and UE 200 communicates with base station 300 having a coverage area in which it is located. For example, in the example of FIG. 13, UE100A, UE100B and UE200 communicate with base station 300A, and UE100C communicates with base station 300B.
UE100(UE100A、UE100B及びUE100C)及びUE200の各々は、自身が位置するカバレッジエリアを持つ基地局300と通信する。例えば、図13の例では、UE100A、UE100B及びUE200は基地局300Aと通信し、UE100Cは基地局300Bと通信する。 (2) UE100 and UE200
Each of UE 100 (
なお、UE100及び基地局300の構成は、実質的に第1の実施形態の構成と同一であるため説明を省略する。
Note that the configurations of the UE 100 and the base station 300 are substantially the same as those of the first embodiment, so description thereof will be omitted.
<3-2.動作例>
図14、図15を参照して、本開示の第3の実施形態に係るUE100及び基地局300の動作の例を説明する。本実施形態では、UE100は、送信UE、代表UE、協調UE又はそれらのいずれか2つ若しくは全てとして動作し得る。また、基地局300は、受信基地局又は協調基地局として動作し得る。 <3-2. Operation example>
An example of operations of theUE 100 and the base station 300 according to the third embodiment of the present disclosure will be described with reference to FIGS. 14 and 15. FIG. In this embodiment, the UE 100 may act as a transmitting UE, a representative UE, a coordinating UE, or any two or all of them. Base station 300 may also operate as a receiving base station or a cooperating base station.
図14、図15を参照して、本開示の第3の実施形態に係るUE100及び基地局300の動作の例を説明する。本実施形態では、UE100は、送信UE、代表UE、協調UE又はそれらのいずれか2つ若しくは全てとして動作し得る。また、基地局300は、受信基地局又は協調基地局として動作し得る。 <3-2. Operation example>
An example of operations of the
(1)送信UEの動作
送信UE100は、基地局300へ送信されるべき協調送信データ及び送信割当情報を協調UE100へ送信する。また、送信UE100は、協調UEリスト及び協調基地局情報を取得する。 (1) Operation of transmitting UE The transmittingUE 100 transmits to the cooperative UE 100 cooperative transmission data and transmission allocation information to be transmitted to the base station 300 . Also, the transmitting UE 100 acquires a cooperating UE list and cooperating base station information.
送信UE100は、基地局300へ送信されるべき協調送信データ及び送信割当情報を協調UE100へ送信する。また、送信UE100は、協調UEリスト及び協調基地局情報を取得する。 (1) Operation of transmitting UE The transmitting
第3の実施形態の送信UE100の以下の動作は、第1又は第2の実施形態と実質的に同一であるため説明を省略する。当該動作は、協調UEリストの取得、送信割当、協調送信データの送信である。
The subsequent operation of the transmitting UE 100 of the third embodiment is substantially the same as that of the first or second embodiment, so the description is omitted. The operations are acquisition of a cooperative UE list, transmission allocation, and transmission of cooperative transmission data.
(2)代表UEの動作
代表UE100は、2つ以上の協調UE100の代表として協調UEリスト及び協調基地局情報を受信基地局300へ送信する。 (2) Operation of representative UE Therepresentative UE 100 transmits a cooperating UE list and coordinating base station information to the receiving base station 300 as a representative of two or more cooperating UEs 100 .
代表UE100は、2つ以上の協調UE100の代表として協調UEリスト及び協調基地局情報を受信基地局300へ送信する。 (2) Operation of representative UE The
第3の実施形態の代表UE100の以下の動作は、第1又は第2の実施形態と実質的に同一であるため説明を省略する。当該動作は、協調UEリストの送信である。
The subsequent operation of the representative UE 100 of the third embodiment is substantially the same as that of the first or second embodiment, so the description is omitted. The action is the transmission of a cooperating UE list.
(3)協調UEの動作
協調UE100は、協調送信データを送信UE100から受信し、受信した協調送信データを他の協調UE100と協調して当該協調UE100が通信可能な基地局300へ送信する。 (3) Operation of Cooperative UE Acooperative UE 100 receives cooperative transmission data from a transmitting UE 100, and cooperates with another cooperative UE 100 to transmit the received cooperative transmission data to a base station 300 with which the cooperative UE 100 can communicate.
協調UE100は、協調送信データを送信UE100から受信し、受信した協調送信データを他の協調UE100と協調して当該協調UE100が通信可能な基地局300へ送信する。 (3) Operation of Cooperative UE A
第3の実施形態の協調UE100の以下の動作は、第1又は第2の実施形態と実質的に同一であるため説明を省略する。当該動作は、協調送信データを受信、SRSの送信、リソース割当とデータ識別情報の受信、協調送信データの送信である。
The following operations of the cooperative UE 100 of the third embodiment are substantially the same as those of the first or second embodiment, so descriptions thereof will be omitted. The operations are receiving coordinated transmission data, transmitting SRS, receiving resource allocation and data identification information, and transmitting coordinated transmission data.
(4)受信基地局の動作
受信基地局300は、協調UEリスト及び協調基地局情報を代表UE100から受信し、協調UEリスト及び協調基地局情報を用いてULリソースを協調UE100へ割り当て、協調送信データを協調UE100から受信する。また、受信基地局300は、協調UEリストを用いて協調情報を協調基地局300へ送信し、協調基地局300から協調送信データを受信する。 (4) Operation of Receiving Base Station The receivingbase station 300 receives the coordinated UE list and coordinated base station information from the representative UE 100, allocates UL resources to the coordinated UE 100 using the coordinated UE list and the coordinated base station information, and performs coordinated transmission. Data is received from the cooperative UE 100 . Also, the receiving base station 300 uses the cooperative UE list to transmit cooperative information to the cooperative base station 300 and receives cooperative transmission data from the cooperative base station 300 .
受信基地局300は、協調UEリスト及び協調基地局情報を代表UE100から受信し、協調UEリスト及び協調基地局情報を用いてULリソースを協調UE100へ割り当て、協調送信データを協調UE100から受信する。また、受信基地局300は、協調UEリストを用いて協調情報を協調基地局300へ送信し、協調基地局300から協調送信データを受信する。 (4) Operation of Receiving Base Station The receiving
-協調基地局への協調情報の送信
受信基地局300は、協調UEリスト、送信割当情報及びデータ識別情報を協調情報として協調基地局300へ送信する。具体的には、受信基地局300は、協調UE100を示す協調UEリスト、当該協調UE100がそれぞれ送信すべき協調送信データ全体の部分を示す送信割当情報、及びデータ識別情報を協調基地局300へ送信する。 - Transmission of cooperation information to cooperative base station The receivingbase station 300 transmits the cooperative UE list, transmission allocation information and data identification information to the cooperative base station 300 as cooperation information. Specifically, the receiving base station 300 transmits to the cooperative base station 300 a cooperative UE list indicating the cooperative UEs 100, transmission allocation information indicating portions of the entire cooperative transmission data to be transmitted by the respective cooperative UEs 100, and data identification information. do.
受信基地局300は、協調UEリスト、送信割当情報及びデータ識別情報を協調情報として協調基地局300へ送信する。具体的には、受信基地局300は、協調UE100を示す協調UEリスト、当該協調UE100がそれぞれ送信すべき協調送信データ全体の部分を示す送信割当情報、及びデータ識別情報を協調基地局300へ送信する。 - Transmission of cooperation information to cooperative base station The receiving
送信割当情報は、2つ以上の協調UE100がそれぞれ送信すべき協調送信データ全体の部分、及び複数の基地局300がそれぞれ受信する協調送信データ全体の部分を示す。即ち、送信割当情報は、前述の受信割当情報を含む。送信割当情報は、例えば、後述する図15で示されるような割当情報であってもよい。なお、受信基地局300は、代表UE100から送信割当情報を受信してもよい。あるいは、受信基地局300は、協調UEリスト及び協調基地局情報に基づき送信割当情報を取得してもよい。
The transmission allocation information indicates a portion of the entire cooperative transmission data to be transmitted by two or more cooperative UEs 100 and a portion of the entire cooperative transmission data to be received by each of the plurality of base stations 300 . That is, the transmission allocation information includes the aforementioned reception allocation information. The transmission allocation information may be, for example, allocation information as shown in FIG. 15, which will be described later. Note that the receiving base station 300 may receive transmission allocation information from the representative UE 100 . Alternatively, the receiving base station 300 may acquire transmission allocation information based on the cooperating UE list and cooperating base station information.
また、受信基地局300は、協調基地局300と通信可能な協調UE100のみを示す協調UEリストを協調基地局300へ送信してもよい。また、受信基地局300は、協調基地局300と通信可能な協調UE100のみについての送信割当情報を協調基地局300へ送信してもよい。あるいは、受信基地局300は、協調UEリストの代わりに又はそれと共に協調基地局情報を協調基地局300へ送信してもよい。
Also, the receiving base station 300 may transmit to the cooperative base station 300 a cooperative UE list indicating only cooperative UEs 100 that can communicate with the cooperative base station 300 . Also, the receiving base station 300 may transmit to the cooperative base station 300 the transmission allocation information only for the cooperative UE 100 that can communicate with the cooperative base station 300 . Alternatively, the receiving base station 300 may transmit cooperative base station information to the cooperative base station 300 instead of or along with the cooperative UE list.
-リソース割当情報の送信
受信基地局300は、協調送信のためのULリソースを示すリソース割当情報を受信基地局300と通信可能な協調UE100へ送信する。具体的には、受信基地局300(情報取得部341)は、受信基地局300と通信可能な協調UE100に対するリソース割当情報を取得する。受信基地局300(第1通信処理部343)は、当該リソース割当情報を含む制御情報を協調UEリストが示す協調UE100のうちの受信基地局300と通信可能な協調UE100へ送信する。例えば、受信基地局300と通信可能な協調UE100は、協調UEリストが示す協調UE100のうちの協調基地局情報が示す協調UE100以外のUE100である。 - Transmission of resource allocation information The receivingbase station 300 transmits resource allocation information indicating UL resources for cooperative transmission to the cooperative UEs 100 capable of communicating with the receiving base station 300 . Specifically, the receiving base station 300 (information acquisition unit 341 ) acquires resource allocation information for the cooperative UE 100 that can communicate with the receiving base station 300 . The receiving base station 300 (first communication processing unit 343) transmits control information including the resource allocation information to the cooperative UEs 100 that can communicate with the receiving base station 300 among the cooperative UEs 100 indicated by the cooperative UE list. For example, the coordinated UE 100 that can communicate with the receiving base station 300 is a UE 100 other than the coordinated UE 100 indicated by the coordinated base station information among the coordinated UEs 100 indicated by the coordinated UE list.
受信基地局300は、協調送信のためのULリソースを示すリソース割当情報を受信基地局300と通信可能な協調UE100へ送信する。具体的には、受信基地局300(情報取得部341)は、受信基地局300と通信可能な協調UE100に対するリソース割当情報を取得する。受信基地局300(第1通信処理部343)は、当該リソース割当情報を含む制御情報を協調UEリストが示す協調UE100のうちの受信基地局300と通信可能な協調UE100へ送信する。例えば、受信基地局300と通信可能な協調UE100は、協調UEリストが示す協調UE100のうちの協調基地局情報が示す協調UE100以外のUE100である。 - Transmission of resource allocation information The receiving
受信基地局300は、受信基地局300と通信可能な協調UE100から受信されるリファレンス信号に基づきULリソースを決定する。例えば、受信基地局300は、受信基地局300がSRSを受信した協調UE100であって協調UEリストが示す協調UE100のうちの受信基地局300と通信可能な協調UE100についてのUL伝搬路の情報に基づき、協調送信のためのULリソースを当該協調UE100に割り当てる。当該ULリソースの割当を示すリソース割当情報を含む制御情報が当該協調UE100へ送信される。
The receiving base station 300 determines UL resources based on reference signals received from cooperative UEs 100 that can communicate with the receiving base station 300 . For example, the receiving base station 300 is the cooperative UE 100 from which the receiving base station 300 has received the SRS, and among the cooperative UEs 100 indicated by the cooperative UE list, the receiving base station 300 can communicate with the UL channel information for the cooperative UE 100. Based on this, UL resources for cooperative transmission are allocated to the cooperative UE 100. Control information including resource allocation information indicating the allocation of the UL resource is transmitted to the cooperative UE 100.
受信基地局300は、協調MIMOのための協調プリコーディングを受信基地局300と通信可能な2つ以上の協調UE100へ送信する。具体的には、受信基地局300(情報取得部341)は、当該2つ以上の協調UE100の協調送信に関する協調プリコーディングを取得する。受信基地局300(第1通信処理部343)は、当該協調プリコーディングを含む制御情報を当該2つ以上の協調UE100へ送信する。
The receiving base station 300 transmits cooperative precoding for cooperative MIMO to two or more cooperative UEs 100 that can communicate with the receiving base station 300. Specifically, the receiving base station 300 (information acquisition unit 341) acquires cooperative precoding regarding cooperative transmission of the two or more cooperative UEs 100. FIG. The receiving base station 300 (first communication processing unit 343 ) transmits control information including the cooperative precoding to the two or more cooperative UEs 100 .
受信基地局300は、受信基地局300と通信可能な2つ以上の協調UE100から受信されるリファレンス信号に基づき協調MIMOのための制御情報を決定する。例えば、受信基地局300は、協調UEリストが示す協調UE100のうちの受信基地局300と通信可能な2つ以上の協調UE100についてのUL伝搬路の情報に基づき、協調MIMOのための協調プリコーディングを決定する。当該協調プリコーディングを含む制御情報が当該2つ以上の協調UE100へ送信される。
The receiving base station 300 determines control information for cooperative MIMO based on reference signals received from two or more cooperative UEs 100 capable of communicating with the receiving base station 300 . For example, the receiving base station 300 performs cooperative precoding for cooperative MIMO based on UL channel information for two or more cooperative UEs 100 that can communicate with the receiving base station 300 out of the cooperative UEs 100 indicated by the cooperative UE list. to decide. Control information including the cooperative precoding is transmitted to the two or more cooperative UEs 100 .
なお、第3の実施形態の受信基地局300の以下の動作は、第1の実施形態の基地局300又は第2の実施形態の受信基地局300と実質的に同一であるため説明を省略する。当該動作は、協調UEリストの受信、協調基地局情報の受信、SRSの受信、協調送信データの受信である。
The following operations of the receiving base station 300 of the third embodiment are substantially the same as those of the base station 300 of the first embodiment or the receiving base station 300 of the second embodiment, so description thereof will be omitted. . The operations are reception of cooperative UE list, reception of cooperative base station information, reception of SRS, and reception of cooperative transmission data.
(5)協調基地局の動作
協調基地局300は、協調情報を受信基地局300から受信し、受信基地局300へ協調送信データを送信する。また、協調基地局300は、受信された協調情報に基づいて協調UE100へULリソースを割り当て、協調送信データを協調UE100から受信する。 (5) Operation of Cooperative Base StationCooperative base station 300 receives cooperative information from receiving base station 300 and transmits cooperative transmission data to receiving base station 300 . Also, the cooperative base station 300 allocates UL resources to the cooperative UE 100 based on the received cooperative information, and receives cooperative transmission data from the cooperative UE 100 .
協調基地局300は、協調情報を受信基地局300から受信し、受信基地局300へ協調送信データを送信する。また、協調基地局300は、受信された協調情報に基づいて協調UE100へULリソースを割り当て、協調送信データを協調UE100から受信する。 (5) Operation of Cooperative Base Station
-受信基地局からの協調情報の受信
協調基地局300は、協調UEリスト、送信割当情報及びデータ識別情報を協調情報として受信基地局300から受信する。 - Receipt of Coordination Information from Receiving Base Station Cooperatingbase station 300 receives the cooperating UE list, transmission allocation information, and data identification information from receiving base station 300 as cooperation information.
協調基地局300は、協調UEリスト、送信割当情報及びデータ識別情報を協調情報として受信基地局300から受信する。 - Receipt of Coordination Information from Receiving Base Station Cooperating
なお、協調基地局300は、協調UEリストに協調基地局300と通信可能な協調UE100以外の協調UE100が含まれる場合、協調UEリストから協調基地局300と通信可能な協調UE100を識別する。例えば、協調基地局300は、協調基地局情報が受信基地局300から受信される場合は、協調UEリスト及び協調基地局情報から協調基地局300と通信可能な協調UE100を識別してもよい。
Note that if the cooperative UE list includes cooperative UEs 100 other than the cooperative UEs 100 that can communicate with the cooperative base station 300, the cooperative base station 300 identifies the cooperative UEs 100 that can communicate with the cooperative base station 300 from the cooperative UE list. For example, when cooperative base station information is received from the receiving base station 300, the cooperative base station 300 may identify cooperative UEs 100 capable of communicating with the cooperative base station 300 from the cooperative UE list and the cooperative base station information.
-リソース割当情報とデータ識別情報の送信
協調基地局300は、協調送信のためのULリソースを示すリソース割当情報を協調UEリストが示す協調UE100のうちの協調基地局300と通信可能な協調UE100へ送信する。 - Transmission of resource allocation information and data identification informationCooperative base station 300 transmits resource allocation information indicating UL resources for cooperative transmission to cooperative UEs 100 capable of communicating with cooperative base stations 300 among cooperative UEs 100 indicated by the cooperative UE list. Send.
協調基地局300は、協調送信のためのULリソースを示すリソース割当情報を協調UEリストが示す協調UE100のうちの協調基地局300と通信可能な協調UE100へ送信する。 - Transmission of resource allocation information and data identification information
協調基地局300は、協調UEリストが示す協調UE100のうちの協調基地局300と通信可能な協調UE100から受信されるリファレンス信号に基づきULリソースを決定する。
The cooperative base station 300 determines UL resources based on reference signals received from the cooperative UEs 100 that can communicate with the cooperative base station 300 among the cooperative UEs 100 indicated by the cooperative UE list.
また、協調基地局300は、協調送信データの識別のためのデータ識別情報を協調UEリストが示す協調UE100のうちの協調基地局300と通信可能な協調UE100へ送信する。
Also, the cooperative base station 300 transmits data identification information for identifying cooperative transmission data to the cooperative UEs 100 that can communicate with the cooperative base station 300 among the cooperative UEs 100 indicated by the cooperative UE list.
また、協調基地局300は、協調MIMOのための協調プリコーディングを協調UEリストが示す協調UE100のうちの協調基地局300と通信可能な2つ以上の協調UE100へ送信する。具体的には、協調基地局300(情報取得部341)は、当該2つ以上の協調UE100の協調送信に関する協調プリコーディングを取得する。協調基地局300(第1通信処理部343)は、当該協調プリコーディングを含む制御情報を当該2つ以上の協調UE100へ送信する。
Also, the cooperative base station 300 transmits cooperative precoding for cooperative MIMO to two or more cooperative UEs 100 that can communicate with the cooperative base station 300 among the cooperative UEs 100 indicated by the cooperative UE list. Specifically, the cooperative base station 300 (information acquisition unit 341 ) acquires cooperative precoding regarding cooperative transmission of the two or more cooperative UEs 100 . The cooperative base station 300 (first communication processing unit 343 ) transmits control information including the cooperative precoding to the two or more cooperative UEs 100 .
協調基地局300は、協調基地局300と通信可能な2つ以上の協調UE100から受信されるリファレンス信号に基づき協調MIMOのための制御情報を決定する。例えば、協調基地局300は、協調UEリストが示す協調UE100のうちの協調基地局300と通信可能な2つ以上の協調UE100についてのUL伝搬路の情報に基づき、協調MIMOのための協調プリコーディングを決定する。当該協調プリコーディングを含む制御情報が当該2つ以上の協調UE100へ送信される。
The cooperative base station 300 determines control information for cooperative MIMO based on reference signals received from two or more cooperative UEs 100 that can communicate with the cooperative base station 300 . For example, the cooperative base station 300 performs cooperative precoding for cooperative MIMO based on UL channel information for two or more cooperative UEs 100 that can communicate with the cooperative base station 300 out of the cooperative UEs 100 indicated by the cooperative UE list. to decide. Control information including the cooperative precoding is transmitted to the two or more cooperative UEs 100 .
なお、第3の実施形態の受信基地局300の以下の動作は、第1の実施形態の基地局300又は第2の実施形態の受信基地局300と実質的に同一であるため説明を省略する。当該動作は、SRSの受信、協調送信データの受信、受信基地局への協調送信データの送信である。
The following operations of the receiving base station 300 of the third embodiment are substantially the same as those of the base station 300 of the first embodiment or the receiving base station 300 of the second embodiment, so description thereof will be omitted. . The operations are reception of SRS, reception of cooperative transmission data, and transmission of cooperative transmission data to the receiving base station.
(6)処理の流れ
図14を参照して、本開示の第3の実施形態に係る処理の例を説明する。図14の例では、UE100Aが送信UE、代表UE及び協調UEとして動作し、UE100Bが受信基地局300と通信する協調UEとして動作し、UE100Cが協調基地局300と通信する協調UEとして動作し、基地局300Aが受信基地局として動作し、基地局300Bが協調基地局として動作する。 (6) Flow of Processing An example of processing according to the third embodiment of the present disclosure will be described with reference to FIG. In the example of FIG. 14,UE 100A operates as a transmitting UE, a representative UE and a coordinated UE, UE 100B operates as a coordinated UE that communicates with the receiving base station 300, and UE 100C operates as a coordinated UE that communicates with the coordinated base station 300, The base station 300A operates as a receiving base station, and the base station 300B operates as a cooperative base station.
図14を参照して、本開示の第3の実施形態に係る処理の例を説明する。図14の例では、UE100Aが送信UE、代表UE及び協調UEとして動作し、UE100Bが受信基地局300と通信する協調UEとして動作し、UE100Cが協調基地局300と通信する協調UEとして動作し、基地局300Aが受信基地局として動作し、基地局300Bが協調基地局として動作する。 (6) Flow of Processing An example of processing according to the third embodiment of the present disclosure will be described with reference to FIG. In the example of FIG. 14,
UE100Aは、協調送信データ及び送信割当情報をUE100B及びUE100Cへ送信する(S701)。例えば、UE100Aは、協調送信で基地局300Aへ送信されるべきデータの送信要求が発生すると、UE100A、UE100B及びUE100Cによる協調送信についての送信割当情報を取得する。UE100Aは、UE100B及びUE100Cへ協調送信データ及び送信割当情報を送信する。
UE 100A transmits cooperative transmission data and transmission allocation information to UE 100B and UE 100C (S701). For example, when a transmission request for data to be transmitted to the base station 300A in cooperative transmission occurs, the UE 100A acquires transmission allocation information for cooperative transmission by the UE 100A, UE 100B, and UE 100C. UE 100A transmits cooperative transmission data and transmission allocation information to UE 100B and UE 100C.
UE100A及びUE100Bは、SRSを基地局300Aへ送信し、UE100Cは、SRSを基地局300Bへ送信する(S703)。例えば、UE100A及びUE100Bは、基地局300AからSRSリクエストをそれぞれ受信した後、定期的にSRSを基地局300Aへ送信する。UE100Cは、基地局300BからSRSリクエストをそれぞれ受信した後、定期的にSRSを基地局300Bへ送信する。
UE100A and UE100B transmit SRS to base station 300A, and UE100C transmits SRS to base station 300B (S703). For example, UE 100A and UE 100B periodically transmit SRS to base station 300A after receiving the SRS request from base station 300A. After receiving the SRS requests from the base station 300B, the UE 100C periodically transmits the SRS to the base station 300B.
UE100Aは、協調UEリスト及び協調基地局情報を基地局300Aへ送信する(S705)。例えば、UE100Aは、UE100Aが通信可能な基地局300Aとは異なる基地局300Bと通信可能なUE100C及び基地局300Bを示す協調基地局情報を取得する。UE100Aは、協調UEリスト及び協調基地局情報を基地局300Aへ送信する。例えば、協調UEリストは、UE100B及びUE100Cを示す。
The UE 100A transmits the cooperative UE list and cooperative base station information to the base station 300A (S705). For example, UE 100A acquires cooperative base station information indicating UE 100C and base station 300B that can communicate with base station 300B that is different from base station 300A that UE 100A can communicate with. The UE 100A transmits the cooperative UE list and cooperative base station information to the base station 300A. For example, the coordinated UE list indicates UE 100B and UE 100C.
基地局300Aは、協調UEリスト、送信割当情報及びデータ識別情報を基地局300Bへ送信する(S707)。例えば、基地局300Aは、受信された協調UEリストから、協調基地局情報が示すUE100Cを示す協調UEリストを取得する。また、基地局300Aは、協調UEリスト及び協調基地局情報に基づき送信割当情報を取得する。また、基地局300Aは、協調基地局情報の送信元であるUE100Aの識別子に基づきデータ識別情報を取得する。基地局300Aは、取得された協調UEリスト、送信割当情報及びデータ識別情報を協調基地局情報が示す基地局300Bへ送信する。
The base station 300A transmits the coordinated UE list, transmission allocation information and data identification information to the base station 300B (S707). For example, the base station 300A acquires a coordinated UE list indicating the UE 100C indicated by the coordinated base station information from the received coordinated UE list. Also, the base station 300A acquires transmission allocation information based on the cooperative UE list and cooperative base station information. Also, the base station 300A acquires data identification information based on the identifier of the UE 100A, which is the transmission source of the cooperative base station information. The base station 300A transmits the acquired cooperative UE list, transmission allocation information and data identification information to the base station 300B indicated by the cooperative base station information.
基地局300Aは、リソース割当情報及び協調プリコーディングをUE100A及びUE100Bへ送信する(S709)。例えば、基地局300Aは、SRSを受信したUE100A及びUE100Bについて、SRSから観測したUL伝搬路の情報を用いて協調送信用のULリソースを割り当て、協調プリコーディングを取得する。なお、UE200からもSRSが受信されているが、UE200は協調UEリストが示すUEではないため、基地局300AはUE200には協調送信用のULリソースを割り当てず、協調MIMOの対象としない。基地局300Aは、割り当てたULリソースを示すリソース割当情報及び協調プリコーディングをUE100A及びUE100Bへ送信する。
The base station 300A transmits resource allocation information and cooperative precoding to the UE 100A and UE 100B (S709). For example, the base station 300A allocates UL resources for cooperative transmission to UE 100A and UE 100B that have received SRS, using UL channel information observed from SRS, and acquires cooperative precoding. Although SRS is also received from UE 200, UE 200 is not a UE indicated by the coordinated UE list, so base station 300A does not allocate UL resources for coordinated transmission to UE 200 and does not target UE 200 for coordinated MIMO. The base station 300A transmits resource allocation information indicating allocated UL resources and cooperative precoding to the UE 100A and UE 100B.
基地局300Bは、リソース割当情報及びデータ識別情報をUE100Cへ送信する(S711)。例えば、基地局300Bは、基地局300Aから受信された協調UEリストが示すUE100CであってSRSを受信したUE100Cについて、SRSから観測したUL伝搬路の情報を用いて協調送信用のULリソースを割り当てる。基地局300Bは、割り当てたULリソースを示すリソース割当情報及び基地局300Aから受信したデータ識別情報をUE100Cへ送信する。
The base station 300B transmits resource allocation information and data identification information to the UE 100C (S711). For example, the base station 300B allocates UL resources for coordinated transmission to the UE 100C indicated by the coordinated UE list received from the base station 300A and receiving the SRS using UL channel information observed from the SRS. . The base station 300B transmits resource allocation information indicating the allocated UL resource and data identification information received from the base station 300A to the UE 100C.
UE100A及びUE100Bは、協調送信データを基地局300Aへ送信する(S713)。例えば、UE100A及びUE100Bは、割り当てられたULリソースと協調プリコーディングを用いて協調送信データを基地局300Aへ送信する。
The UE 100A and UE 100B transmit cooperative transmission data to the base station 300A (S713). For example, UE 100A and UE 100B transmit cooperative transmission data to base station 300A using the allocated UL resources and cooperative precoding.
UE100Cは、協調送信データを基地局300Bへ送信する(S715)。例えば、UE100Cは、割り当てられたULリソースを用いて、データ識別情報により識別される協調送信データを基地局300Bへ送信する。
The UE 100C transmits cooperative transmission data to the base station 300B (S715). For example, the UE 100C uses the assigned UL resource to transmit cooperative transmission data identified by the data identification information to the base station 300B.
基地局300Bは、協調送信データを基地局300Aへ送信する(S717)。例えば、基地局300Bは、UE100Cから受信された協調送信データを協調UE情報の送信元である基地局300Aへ送信する。基地局300Aは、基地局300Bから受信された協調送信データ並びにUE100A及びUE100Bから受信された協調送信データに基づきUE100Aの協調送信データを取得する。
The base station 300B transmits cooperative transmission data to the base station 300A (S717). For example, the base station 300B transmits the coordinated transmission data received from the UE 100C to the base station 300A, which is the transmission source of the coordinated UE information. The base station 300A acquires the coordinated transmission data of the UE 100A based on the coordinated transmission data received from the base station 300B and the coordinated transmission data received from the UE 100A and the UE 100B.
(7)リソース割当
図15を参照して、本開示の第3の実施形態に係るリソース割当の例を説明する。図15で示される各ブロックは、データ又はリソースブロックである。 (7) Resource Allocation An example of resource allocation according to the third embodiment of the present disclosure will be described with reference to FIG. Each block shown in FIG. 15 is a data or resource block.
図15を参照して、本開示の第3の実施形態に係るリソース割当の例を説明する。図15で示される各ブロックは、データ又はリソースブロックである。 (7) Resource Allocation An example of resource allocation according to the third embodiment of the present disclosure will be described with reference to FIG. Each block shown in FIG. 15 is a data or resource block.
協調送信データを受信する各基地局300に割り当てられる協調送信データについて図14のケースで説明する。図14のケースでは、協調送信データは分割されて基地局300A及び基地局300Bにより受信される。図15の左に示される協調送信データのブロックサイズは、図15の中央に示される基地局300Aが受信するデータに対応するブロックサイズ及び基地局300Bが受信するデータに対応するブロックサイズの和と同一である。
The cooperative transmission data assigned to each base station 300 that receives the cooperative transmission data will be explained using the case of FIG. In the case of FIG. 14, the coordinated transmission data is divided and received by base station 300A and base station 300B. The block size of cooperative transmission data shown on the left side of FIG. 15 is the sum of the block size corresponding to the data received by base station 300A shown in the center of FIG. 15 and the block size corresponding to the data received by base station 300B. are identical.
協調送信データを送信する各UE100に割り当てられる協調送信データ(リソース)について図14のケースで説明する。図14のケースでは、UE100A及びUE100Bの各々には基地局300A及び基地局300Bの各々からそれぞれULリソースが提供される。例えば、図15の右に示されるように、UE100A及び100Bには協調プリコーディングを用いた協調MIMOのためのリソース及び基地局300Aへのデータ送信のためのリソースが割り当てられる。UE100Cには基地局300Bへのデータ送信のためのリソースが割り当てられる。
Coordinated transmission data (resources) allocated to each UE 100 that transmits coordinated transmission data will be explained using the case of FIG. In the case of FIG. 14, UE 100A and UE 100B are each provided with UL resources from base station 300A and base station 300B, respectively. For example, as shown on the right side of FIG. 15, UEs 100A and 100B are allocated resources for cooperative MIMO using cooperative precoding and resources for data transmission to base station 300A. The UE 100C is assigned resources for data transmission to the base station 300B.
上記のように、本開示の第3の実施形態によれば、代表UE100、受信基地局300及び協調基地局300の間で、協調UEリスト及び協調基地局情報又はその一部が送受信される。したがって、通信可能な基地局がそれぞれ異なるUE群が協調的にデータを送信する際に、協調的にデータを送信可能なUE100に協調送信用のULリソースを割り当てることが可能になる。
As described above, according to the third embodiment of the present disclosure, the coordinated UE list and the coordinated base station information or part thereof are transmitted and received among the representative UE 100, the receiving base station 300 and the coordinated base station 300. Therefore, when a group of UEs with different communicable base stations transmit data cooperatively, it is possible to allocate UL resources for cooperative transmission to UE 100 capable of cooperatively transmitting data.
<3-3.変形例>
本開示の第3の実施形態に係る変形例を説明する。なお、これらの変形例のうちの2つ以上が組み合わせられてもよい。また、第1及び第2の実施形態の変形例が第3の実施形態に適用されてもよい。 <3-3. Variation>
A modification according to the third embodiment of the present disclosure will be described. Note that two or more of these modifications may be combined. Moreover, the modified examples of the first and second embodiments may be applied to the third embodiment.
本開示の第3の実施形態に係る変形例を説明する。なお、これらの変形例のうちの2つ以上が組み合わせられてもよい。また、第1及び第2の実施形態の変形例が第3の実施形態に適用されてもよい。 <3-3. Variation>
A modification according to the third embodiment of the present disclosure will be described. Note that two or more of these modifications may be combined. Moreover, the modified examples of the first and second embodiments may be applied to the third embodiment.
(1)変形例
本開示の第3の実施形態の上述した例では、代表UE100は協調基地局情報を受信基地局300へ送信する。しかし、本開示の第3の実施形態に係る基地局300における協調基地局情報の取得方法は、この例に限定されない。 (1) Modification In the above-described example of the third embodiment of the present disclosure,representative UE 100 transmits cooperative base station information to receiving base station 300 . However, the method of acquiring cooperative base station information in the base station 300 according to the third embodiment of the present disclosure is not limited to this example.
本開示の第3の実施形態の上述した例では、代表UE100は協調基地局情報を受信基地局300へ送信する。しかし、本開示の第3の実施形態に係る基地局300における協調基地局情報の取得方法は、この例に限定されない。 (1) Modification In the above-described example of the third embodiment of the present disclosure,
本開示の第3の実施形態の変形例として、受信基地局300は、協調UEリスト及び協調UE100から送信されるリファレンス信号を用いて協調基地局情報を取得してもよい。例えば、受信基地局300は、協調UEリストが示す協調UE100のうちSRSが受信された協調UE100以外の協調UE100及び協調基地局300を示す協調基地局情報を取得する。協調基地局300の候補が1つである場合は、上記のように協調基地局300を特定することができる。
As a modification of the third embodiment of the present disclosure, the receiving base station 300 may acquire cooperative base station information using the cooperative UE list and the reference signal transmitted from the cooperative UE 100. For example, the receiving base station 300 acquires cooperative base station information indicating the cooperative base stations 300 and the cooperative UEs 100 other than the cooperative UE 100 from which the SRS has been received among the cooperative UEs 100 indicated by the cooperative UE list. When there is one candidate for cooperative base station 300, cooperative base station 300 can be identified as described above.
なお、受信基地局300は、協調基地局情報を取得する代わりに、協調基地局300と通信可能な協調UE100を示す協調UEリストを取得してもよい。
Note that the receiving base station 300 may acquire a cooperative UE list indicating cooperative UEs 100 capable of communicating with the cooperative base station 300 instead of acquiring cooperative base station information.
これにより、代表UE100から協調基地局情報を受信することなく、受信基地局300は協調基地局情報を取得することができる。そのため、代表UE100と受信基地局300と通信を削減することができる。
As a result, the receiving base station 300 can acquire cooperative base station information without receiving cooperative base station information from the representative UE 100 . Therefore, communication between the representative UE 100 and the receiving base station 300 can be reduced.
<4.適用例>
本開示の各実施の形態の適用例について説明する。適用例におけるシステムは、UE100A~UE100D、基地局300A及び基地局300Bを含む。UE100A~UE100Dはそれぞれ車両に搭載され、当該車両は隊列走行する。UE100A~UE100Dは、サイドリンクで互いに通信可能である。 <4. Application example>
An application example of each embodiment of the present disclosure will be described. The system in the example application includesUE 100A-UE 100D, base station 300A and base station 300B. The UE 100A to UE 100D are mounted on vehicles, and the vehicles run in a row. UE 100A to UE 100D can communicate with each other via sidelinks.
本開示の各実施の形態の適用例について説明する。適用例におけるシステムは、UE100A~UE100D、基地局300A及び基地局300Bを含む。UE100A~UE100Dはそれぞれ車両に搭載され、当該車両は隊列走行する。UE100A~UE100Dは、サイドリンクで互いに通信可能である。 <4. Application example>
An application example of each embodiment of the present disclosure will be described. The system in the example application includes
<4-1.適用例1>
図16A~図16Cを参照して、本開示の各実施形態の適用例1について説明する。 <4-1. Application example 1>
An application example 1 of each embodiment of the present disclosure will be described with reference to FIGS. 16A to 16C.
図16A~図16Cを参照して、本開示の各実施形態の適用例1について説明する。 <4-1. Application example 1>
An application example 1 of each embodiment of the present disclosure will be described with reference to FIGS. 16A to 16C.
図16Aでは、UE100A~UE100Dは、それぞれ基地局300Aと通信可能である。したがって、UE100Aは、直接的に基地局300Aへデータを送信してもよく、UE100B~UE100Dとのサイドリンクを介して基地局300Aへデータを送信してもよい。
In FIG. 16A, UE100A to UE100D are each capable of communicating with the base station 300A. Therefore, the UE 100A may transmit data directly to the base station 300A, or may transmit data to the base station 300A via the sidelinks with the UE100B-UE100D.
図16Bでは、UE100Aは、UE100Aが搭載される車両がトンネルに入ったため、基地局300A及び基地局300Bと通信できない。そこで、UE100Aは、送信UEとして、UE100B~UE100Dへデータを共有する。UE100B~UE100Dのうちのいずれかが代表UEとして、UE100B~UE100Dを示す協調UEリストを基地局300Aへ送信する。基地局300Aは、協調UEリストが示すUE100B~UE100DにULリソースを割り当てる。UE100B~UE100Dは、共有されたデータを割り当てられたULリソースを用いて協調的に基地局300Aへ送信する。
In FIG. 16B, the UE 100A cannot communicate with the base stations 300A and 300B because the vehicle on which the UE 100A is mounted has entered a tunnel. Therefore, UE 100A, as a transmitting UE, shares data with UE 100B to UE 100D. Any one of UE100B to UE100D as a representative UE transmits a coordinated UE list indicating UE100B to UE100D to base station 300A. The base station 300A allocates UL resources to the UEs 100B to 100D indicated by the coordinated UE list. The UE 100B-UE 100D cooperatively transmit the shared data to the base station 300A using the assigned UL resources.
図16Cでは、UE100Aは、UE100Aが搭載される車両がトンネルから出たため、基地局300Bと通信可能である。しかし、UE100Aは、カバレッジエリア外のため基地局300Aとは通信できない。また、UE100Bは、UE100Bが搭載される車両がトンネルに入ったため、基地局300A及び基地局300Bと通信できない。そこで、UE100Aは、UE100C及びUE100Dへデータを共有する。また、UE100Aは、代表UEとして、基地局300A並びにUE100C及びUE100Dを示す協調基地局情報を基地局300Bへ送信する。基地局300Bは、協調UEリスト及びデータ識別情報などの協調情報を基地局300Aへ送信する。基地局300Aは、受信された協調情報に基づいてUE100C及びUE100DにULリソースを割り当てる。UE100C及びUE100Dは、共有されたデータを割り当てられたULリソースを用いて協調的に基地局300Aへ送信する。基地局300Aは、UE100C及びUE100Dから受信されたデータを基地局300Bへ送信する。また、UE100Aもデータを基地局300Aへ送信する。基地局300Bは、UE100A及び基地局300Aからデータを受信する。
In FIG. 16C, the UE 100A can communicate with the base station 300B because the vehicle on which the UE 100A is mounted has left the tunnel. However, the UE 100A cannot communicate with the base station 300A because it is outside the coverage area. Also, the UE 100B cannot communicate with the base stations 300A and 300B because the vehicle on which the UE 100B is mounted has entered the tunnel. Therefore, UE 100A shares data with UE 100C and UE 100D. Also, the UE 100A, as a representative UE, transmits cooperative base station information indicating the base station 300A and the UE 100C and UE 100D to the base station 300B. The base station 300B transmits cooperation information such as a cooperation UE list and data identification information to the base station 300A. Base station 300A allocates UL resources to UE 100C and UE 100D based on the received cooperation information. The UE 100C and UE 100D cooperatively transmit the shared data to the base station 300A using the assigned UL resources. The base station 300A transmits the data received from the UE 100C and the UE 100D to the base station 300B. The UE 100A also transmits data to the base station 300A. The base station 300B receives data from the UE 100A and the base station 300A.
このように、UE100間での直接通信の状態が変動する場合に、直接通信できないUE100に協調送信用のULリソースが割り当てられることを防止できる。また、UE100と基地局300との間の通信の状態が変動する場合に、他のUE100と同じ基地局300と通信できないUE100には別の基地局300を介してデータを協調送信させることができる。したがって、協調送信するUE100と基地局300との通信の性能又は安定性(言い換えるとロバスト性)を向上させることができる。
In this way, when the state of direct communication between UEs 100 fluctuates, it is possible to prevent UL resources for coordinated transmission from being allocated to UEs 100 that cannot communicate directly. Also, when the state of communication between the UE 100 and the base station 300 fluctuates, the UE 100 that cannot communicate with the same base station 300 as other UEs 100 can cooperatively transmit data via another base station 300. . Therefore, it is possible to improve the performance or stability (in other words, robustness) of communication between the UE 100 performing coordinated transmission and the base station 300 .
<4-2.適用例2>
図17A~図17Cを参照して、本開示の各実施形態の適用例2について説明する。適用例2では、UE100及び基地局300を介して車両と車両の遠隔制御システムとが接続されている。 <4-2. Application example 2>
An application example 2 of each embodiment of the present disclosure will be described with reference to FIGS. 17A to 17C. In the application example 2, the vehicle and the vehicle remote control system are connected via theUE 100 and the base station 300 .
図17A~図17Cを参照して、本開示の各実施形態の適用例2について説明する。適用例2では、UE100及び基地局300を介して車両と車両の遠隔制御システムとが接続されている。 <4-2. Application example 2>
An application example 2 of each embodiment of the present disclosure will be described with reference to FIGS. 17A to 17C. In the application example 2, the vehicle and the vehicle remote control system are connected via the
図17Aでは、UE100Aは、UE100Aが搭載される車両が基地局300Aのカバレッジエリアから基地局300Bのカバレッジエリアへ移動したことにより、基地局300Aとは通信できない。しかし、基地局300Bにおいて障害が発生したことにより、UE100Aは、基地局300Bとも通信できない状態に陥っている。UE100Aは、基地局300との通信異常が検出されると、UE100B~UE100Dへ通信異常を示す情報を共有する。UE100B~UE100Dのうちのいずれかが代表UEとして、UE100B~UE100Dを示す協調UEリストを基地局300Aへ送信する。基地局300Aは、協調UEリストが示すUE100B~UE100DにULリソースを割り当てる。UE100B~UE100Dは、共有された情報を割り当てられたULリソースを用いて協調的に基地局300Aへ送信する。
In FIG. 17A, the UE 100A cannot communicate with the base station 300A because the vehicle on which the UE 100A is mounted has moved from the coverage area of the base station 300A to the coverage area of the base station 300B. However, due to the failure occurring in the base station 300B, the UE 100A cannot communicate with the base station 300B. When UE 100A detects a communication abnormality with base station 300, UE 100A shares information indicating the communication abnormality with UE 100B to UE 100D. Any one of UE100B to UE100D as a representative UE transmits a coordinated UE list indicating UE100B to UE100D to base station 300A. The base station 300A allocates UL resources to the UEs 100B to 100D indicated by the coordinated UE list. The UE 100B-UE 100D cooperatively transmit the shared information to the base station 300A using the assigned UL resources.
図17Bでは、UE100Bも、UE100Bが搭載される車両が基地局300Aのカバレッジエリアから基地局300Bのカバレッジエリアへ移動したことにより、基地局300Aとは通信できない。しかし、UE100C及びUE100Dは、基地局300Aと通信可能であるため、UE100Aは、UE100C及びUE100Dを介してデータを基地局300A及び遠隔制御システムへ送信する。
In FIG. 17B, the UE 100B is also unable to communicate with the base station 300A because the vehicle on which the UE 100B is mounted has moved from the coverage area of the base station 300A to the coverage area of the base station 300B. However, since UE100C and UE100D can communicate with base station 300A, UE100A transmits data to base station 300A and the remote control system via UE100C and UE100D.
図17Cでは、UE100Cも、UE100Cが搭載される車両が基地局300Aのカバレッジエリアから基地局300Bのカバレッジエリアへ移動したことにより、基地局300Aとは通信できない。しかし、UE100Dは、基地局300Aと通信可能であるため、UE100Aは、UE100Dを介してデータを基地局300A及び遠隔制御システムへ送信する。
In FIG. 17C, the UE 100C is also unable to communicate with the base station 300A because the vehicle on which the UE 100C is mounted has moved from the coverage area of the base station 300A to the coverage area of the base station 300B. However, since UE 100D can communicate with base station 300A, UE 100A transmits data to base station 300A and the remote control system via UE 100D.
このように、UE100Aが基地局300A及び基地局300Bと通信できない状態に陥った後も、後続の車両に搭載されるUE100B~UE100Dを介して基地局300Aと通信することができる。これにより、UE100Aがいずれの基地局300とも通信不能となってから、最後尾の車両に搭載されるUE100Dが基地局300Aと通信不能となるまでの時間を、UE100Aが遠隔制御システムと通信可能な時間として作りだすことができる。言い換えると、UE100Aが単体で基地局300と通信する場合と比べて、UE100Aが遠隔制御システムと通信不能になるまでの車両の移動距離を長くすることができる。例えば、図17A~17Cの距離Dだけ長くすることができる。したがって、当該作り出された時間(あるいは移動距離)の間、遠隔制御システムは車両の減速又は操舵といった制御又は車両内外の監視を継続することができるため、車両の安全性を向上させることができる。特に、無人運転車両の場合、通信途絶は無人運転の安全性又は可用性に影響を及ぼすため、有効である。
Thus, even after the UE 100A is unable to communicate with the base station 300A and the base station 300B, it can communicate with the base station 300A via the UE100B to UE100D mounted on subsequent vehicles. As a result, the time from when the UE 100A becomes unable to communicate with any of the base stations 300 until when the UE 100D mounted on the last vehicle becomes unable to communicate with the base station 300A is It can be created over time. In other words, compared to the case where the UE 100A communicates with the base station 300 alone, it is possible to lengthen the travel distance of the vehicle until the UE 100A becomes unable to communicate with the remote control system. For example, it can be lengthened by the distance D in FIGS. 17A-17C. Therefore, during the created time (or distance traveled), the remote control system can continue to control the deceleration or steering of the vehicle or monitor the inside and outside of the vehicle, thereby improving the safety of the vehicle. Especially in the case of driverless vehicles, it is effective because communication disruption affects the safety or availability of driverless operation.
以上、本開示の各実施形態を説明したが、本開示は当該各実施形態に限定されるものではない。当該各実施形態は例示にすぎないということ、及び、本開示のスコープ及び精神から逸脱することなく様々な変形が可能であるということは、当業者に理解されるであろう。
Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the respective embodiments. Those skilled in the art will appreciate that each such embodiment is exemplary only and that various modifications are possible without departing from the scope and spirit of the disclosure.
例えば、本明細書に記載されている処理におけるステップは、必ずしもフローチャート又はシーケンス図に記載された順序に沿って時系列に実行されなくてよい。例えば、処理におけるステップは、フローチャート又はシーケンス図として記載した順序と異なる順序で実行されても、並列的に実行されてもよい。また、処理におけるステップの一部が削除されてもよく、さらなるステップが処理に追加されてもよい。
For example, the steps in the processes described in this specification do not necessarily have to be executed in chronological order according to the order described in the flowcharts or sequence diagrams. For example, steps in a process may be performed in an order different from that depicted in a flowchart or sequence diagram, or in parallel. Also, some of the steps in the process may be deleted and additional steps may be added to the process.
例えば、本明細書において説明した装置の1つ以上の構成要素の動作を含む方法が提供されてもよく、上記構成要素の動作をコンピュータに実行させるためのプログラムが提供されてもよい。また、当該プログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体が提供されてもよい。当然ながら、このような方法、プログラム、及びコンピュータに読み取り可能な非遷移的実体的記録媒体(non-transitory tangible computer-readable storage medium)も、本開示に含まれる。
For example, a method may be provided that includes the operation of one or more components of the apparatus described herein, and a program may be provided for causing a computer to perform the operation of the components. Further, a computer-readable non-transitional tangible recording medium recording the program may be provided. Of course, such methods, programs, and computer-readable non-transitory tangible computer-readable storage mediums are also included in the present disclosure.
例えば、本開示において、ユーザ機器(UE)は、移動局(mobile station)、移動端末、移動装置、移動ユニット、加入者局(subscriber station)、加入者端末、加入者装置、加入者ユニット、ワイヤレス局、ワイヤレス端末、ワイヤレス装置、ワイヤレスユニット、リモート局、リモート端末、リモート装置、又はリモートユニット等の別の名称で呼ばれてもよい。
For example, in this disclosure user equipment (UE) refers to a mobile station, mobile terminal, mobile device, mobile unit, subscriber station, subscriber terminal, subscriber equipment, subscriber unit, wireless It may also be called a station, a wireless terminal, a wireless device, a wireless unit, a remote station, a remote terminal, a remote device, a remote unit, or the like.
例えば、本開示において、「送信する(transmit)」は、送信に使用されるプロトコルスタック内の少なくとも1つのレイヤの処理を行うことを意味してもよく、又は、無線又は有線で信号を物理的に送信することを意味してもよい。あるいは、「送信する」は、上記少なくとも1つのレイヤの処理を行うことと、無線又は有線で信号を物理的に送信することとの組合せを意味してもよい。同様に、「受信する(receive)」は、受信に使用されるプロトコルスタック内の少なくとも1つのレイヤの処理を行うことを意味してもよく、又は、無線又は有線で信号を物理的に受信することを意味してもよい。あるいは、「受信する」は、上記少なくとも1つのレイヤの処理を行うことと、無線又は有線で信号を物理的に受信することとの組合せを意味してもよい。上記少なくとも1つのレイヤは、少なくとも1つのプロトコルと言い換えられてもよい。
For example, in this disclosure, "transmit" may mean performing at least one layer of processing within the protocol stack used for transmission, or physically transmitting a signal wirelessly or by wire. It may mean sending to Alternatively, "transmitting" may mean a combination of performing the at least one layer of processing and physically transmitting the signal wirelessly or by wire. Similarly, "receive" may mean performing processing of at least one layer in the protocol stack used for reception, or physically receiving a signal wirelessly or by wire. may mean that Alternatively, "receiving" may mean a combination of performing the at least one layer of processing and physically receiving the signal wirelessly or by wire. The at least one layer may also be translated as at least one protocol.
例えば、本開示において、「取得する(obtain/acquire)」は、記憶されている情報の中から情報を取得することを意味してもよく、他のノードから受信した情報の中から情報を取得することを意味してもよく、又は、情報を生成することにより当該情報を取得することを意味してもよい。
For example, in this disclosure, "obtain/acquire" may mean obtaining information among stored information, obtaining information among information received from other nodes. or to obtain the information by generating the information.
例えば、本開示において、「~を含む(include)」及び「~を備える(comprise)」は、列挙する項目のみを含むことを意味せず、列挙する項目のみを含んでもよいし、列挙する項目に加えてさらなる項目を含んでもよいことを意味する。
For example, in this disclosure, the terms “include” and “comprise” are not meant to include only the recited items, but may include only the recited items, or may include only the recited items. It means that further items may be included in addition to the
例えば、本開示において、「又は(or)」は、排他的論理和を意味せず、論理和を意味する。
For example, in the present disclosure, "or" does not mean exclusive OR, but means logical sum.
なお、上述した実施形態に含まれる技術的特徴は、以下のような特徴として表現されてもよい。当然ながら、本開示は以下のような特徴に限定されない。
It should be noted that the technical features included in the above-described embodiments may be expressed as the following features. Of course, the disclosure is not limited to the following features.
(特徴1)
ユーザ機器(100)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)へ送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を取得する情報取得部(131)と、
前記ユーザ機器情報を含む制御情報を前記基地局へ送信する通信処理部(133)と、
を備えるユーザ機器。 (Feature 1)
A user equipment (100),
obtaining user equipment information indicative of two or more user equipments capable of transmitting or receiving data in direct communication, said two or more user equipments capable of cooperatively transmitting said data to a base station (300); an information acquisition unit (131);
a communication processing unit (133) for transmitting control information including the user equipment information to the base station;
user equipment.
ユーザ機器(100)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)へ送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を取得する情報取得部(131)と、
前記ユーザ機器情報を含む制御情報を前記基地局へ送信する通信処理部(133)と、
を備えるユーザ機器。 (Feature 1)
A user equipment (100),
obtaining user equipment information indicative of two or more user equipments capable of transmitting or receiving data in direct communication, said two or more user equipments capable of cooperatively transmitting said data to a base station (300); an information acquisition unit (131);
a communication processing unit (133) for transmitting control information including the user equipment information to the base station;
user equipment.
(特徴2)
前記ユーザ機器情報により示される前記2つ以上のユーザ機器は、ユーザ機器の特定のグループに属する、
特徴1に記載のユーザ機器。 (Feature 2)
the two or more user equipments indicated by the user equipment information belong to a particular group of user equipments;
The user equipment offeature 1.
前記ユーザ機器情報により示される前記2つ以上のユーザ機器は、ユーザ機器の特定のグループに属する、
特徴1に記載のユーザ機器。 (Feature 2)
the two or more user equipments indicated by the user equipment information belong to a particular group of user equipments;
The user equipment of
(特徴3)
前記情報取得部は、前記ユーザ機器情報が有効である条件に関する有効条件情報を取得し、
前記通信処理部は、前記有効条件情報を含む制御情報を前記基地局に送信する、
特徴1又は2に記載のユーザ機器。 (Feature 3)
The information acquisition unit acquires valid condition information regarding a condition under which the user device information is valid,
wherein the communication processing unit transmits control information including the validity condition information to the base station;
A user equipment according to feature 1 or 2.
前記情報取得部は、前記ユーザ機器情報が有効である条件に関する有効条件情報を取得し、
前記通信処理部は、前記有効条件情報を含む制御情報を前記基地局に送信する、
特徴1又は2に記載のユーザ機器。 (Feature 3)
The information acquisition unit acquires valid condition information regarding a condition under which the user device information is valid,
wherein the communication processing unit transmits control information including the validity condition information to the base station;
A user equipment according to
(特徴4)
前記有効条件情報は、前記2つ以上のユーザ機器における前記直接通信を用いた前記データの送信又は受信の状況に関する通信状況情報を含む、
特徴3に記載のユーザ機器。 (Feature 4)
The validity condition information includes communication status information regarding the status of transmission or reception of the data using the direct communication at the two or more user devices,
A user equipment according tofeature 3.
前記有効条件情報は、前記2つ以上のユーザ機器における前記直接通信を用いた前記データの送信又は受信の状況に関する通信状況情報を含む、
特徴3に記載のユーザ機器。 (Feature 4)
The validity condition information includes communication status information regarding the status of transmission or reception of the data using the direct communication at the two or more user devices,
A user equipment according to
(特徴5)
前記通信状況情報は、前記2つ以上のユーザ機器における前記直接通信を用いた前記データの送信又は受信の進行度を示す、
特徴4に記載のユーザ機器。 (Feature 5)
the communication status information indicates the progress of transmission or reception of the data using the direct communication at the two or more user devices;
A user equipment according to feature 4.
前記通信状況情報は、前記2つ以上のユーザ機器における前記直接通信を用いた前記データの送信又は受信の進行度を示す、
特徴4に記載のユーザ機器。 (Feature 5)
the communication status information indicates the progress of transmission or reception of the data using the direct communication at the two or more user devices;
A user equipment according to feature 4.
(特徴6)
前記通信状況情報は、前記2つ以上のユーザ機器における前記直接通信の安定度を示す、
特徴4に記載のユーザ機器。 (Feature 6)
the communication status information indicates the stability of the direct communication between the two or more user devices;
A user equipment according to feature 4.
前記通信状況情報は、前記2つ以上のユーザ機器における前記直接通信の安定度を示す、
特徴4に記載のユーザ機器。 (Feature 6)
the communication status information indicates the stability of the direct communication between the two or more user devices;
A user equipment according to feature 4.
(特徴7)
前記有効条件情報は、前記ユーザ機器情報の有効時間を示す、
特徴3に記載のユーザ機器。 (Feature 7)
the validity condition information indicates a validity time of the user equipment information;
A user equipment according tofeature 3.
前記有効条件情報は、前記ユーザ機器情報の有効時間を示す、
特徴3に記載のユーザ機器。 (Feature 7)
the validity condition information indicates a validity time of the user equipment information;
A user equipment according to
(特徴8)
前記情報取得部は、前記データを前記ユーザ機器内で取得し、
前記通信処理部は、取得された前記データを前記2つ以上のユーザ機器のうちの少なくとも1つのユーザ機器へ送信する、
特徴1~7のいずれか1項に記載のユーザ機器。 (Feature 8)
The information acquisition unit acquires the data within the user device,
wherein the communication processing unit transmits the acquired data to at least one user device among the two or more user devices;
User equipment according to any one of the features 1-7.
前記情報取得部は、前記データを前記ユーザ機器内で取得し、
前記通信処理部は、取得された前記データを前記2つ以上のユーザ機器のうちの少なくとも1つのユーザ機器へ送信する、
特徴1~7のいずれか1項に記載のユーザ機器。 (Feature 8)
The information acquisition unit acquires the data within the user device,
wherein the communication processing unit transmits the acquired data to at least one user device among the two or more user devices;
User equipment according to any one of the features 1-7.
(特徴9)
前記通信処理部は、前記ユーザ機器情報を含む別の制御情報を他のユーザ機器から前記直接通信で受信し、
前記情報取得部は、前記別の制御情報に含まれる前記ユーザ機器情報を取得する、
特徴1~7のいずれか1項に記載のユーザ機器。 (Feature 9)
The communication processing unit receives other control information including the user device information from another user device through the direct communication;
the information acquisition unit acquires the user equipment information included in the separate control information;
User equipment according to any one of the features 1-7.
前記通信処理部は、前記ユーザ機器情報を含む別の制御情報を他のユーザ機器から前記直接通信で受信し、
前記情報取得部は、前記別の制御情報に含まれる前記ユーザ機器情報を取得する、
特徴1~7のいずれか1項に記載のユーザ機器。 (Feature 9)
The communication processing unit receives other control information including the user device information from another user device through the direct communication;
the information acquisition unit acquires the user equipment information included in the separate control information;
User equipment according to any one of the features 1-7.
(特徴10)
前記情報取得部は、前記基地局と通信可能なユーザ機器を示す代表ユーザ機器情報を取得し、
前記通信処理部は、前記ユーザ機器が前記代表ユーザ機器情報により示されるユーザ機器である場合、前記ユーザ機器情報を含む制御情報を前記基地局へ送信する、
特徴1~9のいずれか1項に記載のユーザ機器。 (Feature 10)
The information acquisition unit acquires representative user device information indicating user devices that can communicate with the base station,
If the user equipment is the user equipment indicated by the representative user equipment information, the communication processing unit transmits control information including the user equipment information to the base station.
User equipment according to any one of the features 1-9.
前記情報取得部は、前記基地局と通信可能なユーザ機器を示す代表ユーザ機器情報を取得し、
前記通信処理部は、前記ユーザ機器が前記代表ユーザ機器情報により示されるユーザ機器である場合、前記ユーザ機器情報を含む制御情報を前記基地局へ送信する、
特徴1~9のいずれか1項に記載のユーザ機器。 (Feature 10)
The information acquisition unit acquires representative user device information indicating user devices that can communicate with the base station,
If the user equipment is the user equipment indicated by the representative user equipment information, the communication processing unit transmits control information including the user equipment information to the base station.
User equipment according to any one of the features 1-9.
(特徴11)
前記直接通信は、サイドリンク通信である、
特徴1~10のいずれか1項に記載のユーザ機器。 (Feature 11)
wherein the direct communication is a sidelink communication;
User equipment according to any one of the features 1-10.
前記直接通信は、サイドリンク通信である、
特徴1~10のいずれか1項に記載のユーザ機器。 (Feature 11)
wherein the direct communication is a sidelink communication;
User equipment according to any one of the features 1-10.
(特徴12)
前記制御情報は、UCI(Uplink Control Information)、MAC CE(Media Access Control Control Element)又はRRC(Radio Resource Control)メッセージである、
特徴1~11のいずれか1項に記載のユーザ機器。 (Feature 12)
The control information is UCI (Uplink Control Information), MAC CE (Media Access Control Control Element) or RRC (Radio Resource Control) message,
User equipment according to any one of the features 1-11.
前記制御情報は、UCI(Uplink Control Information)、MAC CE(Media Access Control Control Element)又はRRC(Radio Resource Control)メッセージである、
特徴1~11のいずれか1項に記載のユーザ機器。 (Feature 12)
The control information is UCI (Uplink Control Information), MAC CE (Media Access Control Control Element) or RRC (Radio Resource Control) message,
User equipment according to any one of the features 1-11.
(特徴13)
基地局(300)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを前記基地局に送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信する通信処理部(343)と、
前記制御情報に含まれる前記ユーザ機器情報を取得する情報取得部(341)と、
を備える基地局。 (Feature 13)
A base station (300),
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, comprising user equipment information indicative of said two or more user equipments capable of cooperatively transmitting said data to said base station. a communication processing unit (343) that receives control information from a user device;
an information acquisition unit (341) for acquiring the user device information included in the control information;
base station.
基地局(300)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを前記基地局に送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信する通信処理部(343)と、
前記制御情報に含まれる前記ユーザ機器情報を取得する情報取得部(341)と、
を備える基地局。 (Feature 13)
A base station (300),
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, comprising user equipment information indicative of said two or more user equipments capable of cooperatively transmitting said data to said base station. a communication processing unit (343) that receives control information from a user device;
an information acquisition unit (341) for acquiring the user device information included in the control information;
base station.
(特徴14)
前記情報取得部は、アップリンクリソースを示すリソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報を含む制御情報を前記ユーザ機器情報により示される前記2つ以上のユーザ機器へ送信する、
特徴13に記載の基地局。 (Feature 14)
The information acquisition unit acquires resource allocation information indicating uplink resources,
wherein the communication processing unit transmits control information including the resource allocation information to the two or more user equipments indicated by the user equipment information;
14. The base station of feature 13.
前記情報取得部は、アップリンクリソースを示すリソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報を含む制御情報を前記ユーザ機器情報により示される前記2つ以上のユーザ機器へ送信する、
特徴13に記載の基地局。 (Feature 14)
The information acquisition unit acquires resource allocation information indicating uplink resources,
wherein the communication processing unit transmits control information including the resource allocation information to the two or more user equipments indicated by the user equipment information;
14. The base station of feature 13.
(特徴15)
前記通信処理部は、前記ユーザ機器情報により示される前記2つ以上のユーザ機器からそれぞれリファレンス信号を受信し、
前記リソース割当情報は、前記リファレンス信号に基づき決定されるアップリンクリソースを示す、
特徴14に記載の基地局。 (Feature 15)
The communication processing unit receives reference signals from each of the two or more user devices indicated by the user device information;
the resource allocation information indicates uplink resources determined based on the reference signal;
15. The base station of feature 14.
前記通信処理部は、前記ユーザ機器情報により示される前記2つ以上のユーザ機器からそれぞれリファレンス信号を受信し、
前記リソース割当情報は、前記リファレンス信号に基づき決定されるアップリンクリソースを示す、
特徴14に記載の基地局。 (Feature 15)
The communication processing unit receives reference signals from each of the two or more user devices indicated by the user device information;
the resource allocation information indicates uplink resources determined based on the reference signal;
15. The base station of feature 14.
(特徴16)
前記情報取得部は、協調プリコーディングを取得し、
前記通信処理部は、前記協調プリコーディングを含む制御情報を前記ユーザ機器情報により示される前記2つ以上のユーザ機器へ送信する、
特徴13~15のいずれか1項に記載の基地局。 (Feature 16)
The information acquisition unit acquires cooperative precoding,
the communication processing unit transmits control information including the cooperative precoding to the two or more user equipments indicated by the user equipment information;
A base station according to any one of features 13-15.
前記情報取得部は、協調プリコーディングを取得し、
前記通信処理部は、前記協調プリコーディングを含む制御情報を前記ユーザ機器情報により示される前記2つ以上のユーザ機器へ送信する、
特徴13~15のいずれか1項に記載の基地局。 (Feature 16)
The information acquisition unit acquires cooperative precoding,
the communication processing unit transmits control information including the cooperative precoding to the two or more user equipments indicated by the user equipment information;
A base station according to any one of features 13-15.
(特徴17)
ユーザ機器(100)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)へ送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を取得し、
前記ユーザ機器情報を含む制御情報を前記基地局へ送信する、
方法。 (Feature 17)
A method performed by a user equipment (100), comprising:
obtaining user equipment information indicative of two or more user equipments capable of transmitting or receiving data in direct communication, wherein said two or more user equipments are capable of cooperatively transmitting said data to a base station (300); ,
transmitting control information including the user equipment information to the base station;
Method.
ユーザ機器(100)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)へ送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を取得し、
前記ユーザ機器情報を含む制御情報を前記基地局へ送信する、
方法。 (Feature 17)
A method performed by a user equipment (100), comprising:
obtaining user equipment information indicative of two or more user equipments capable of transmitting or receiving data in direct communication, wherein said two or more user equipments are capable of cooperatively transmitting said data to a base station (300); ,
transmitting control information including the user equipment information to the base station;
Method.
(特徴18)
基地局(300)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを前記基地局に送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信し、
前記制御情報に含まれる前記ユーザ機器情報を取得する、
方法。 (Feature 18)
A method performed by a base station (300), comprising:
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, comprising user equipment information indicative of said two or more user equipments capable of cooperatively transmitting said data to said base station. receiving control information from the user equipment;
obtaining the user equipment information included in the control information;
Method.
基地局(300)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを前記基地局に送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信し、
前記制御情報に含まれる前記ユーザ機器情報を取得する、
方法。 (Feature 18)
A method performed by a base station (300), comprising:
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, comprising user equipment information indicative of said two or more user equipments capable of cooperatively transmitting said data to said base station. receiving control information from the user equipment;
obtaining the user equipment information included in the control information;
Method.
(特徴19)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)へ送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を取得することと、
前記ユーザ機器情報を含む制御情報を前記基地局へ送信することと、
をコンピュータに実行させるプログラム。 (Feature 19)
User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments being capable of cooperatively transmitting said data to a base station (300). and
transmitting control information including the user equipment information to the base station;
A program that makes a computer run
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)へ送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を取得することと、
前記ユーザ機器情報を含む制御情報を前記基地局へ送信することと、
をコンピュータに実行させるプログラム。 (Feature 19)
User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments being capable of cooperatively transmitting said data to a base station (300). and
transmitting control information including the user equipment information to the base station;
A program that makes a computer run
(特徴20)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信することと、
前記制御情報に含まれる前記ユーザ機器情報を取得することと、
をコンピュータに実行させるプログラム。 (Feature 20)
User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments capable of cooperatively transmitting said data to a base station (300). receiving from the user equipment control information comprising:
obtaining the user equipment information included in the control information;
A program that makes a computer run
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信することと、
前記制御情報に含まれる前記ユーザ機器情報を取得することと、
をコンピュータに実行させるプログラム。 (Feature 20)
User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments capable of cooperatively transmitting said data to a base station (300). receiving from the user equipment control information comprising:
obtaining the user equipment information included in the control information;
A program that makes a computer run
(特徴21)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)へ送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を取得することと、
前記ユーザ機器情報を含む制御情報を前記基地局へ送信することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。 (Feature 21)
User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments being capable of cooperatively transmitting said data to a base station (300). and
transmitting control information including the user equipment information to the base station;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)へ送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を取得することと、
前記ユーザ機器情報を含む制御情報を前記基地局へ送信することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。 (Feature 21)
User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments being capable of cooperatively transmitting said data to a base station (300). and
transmitting control information including the user equipment information to the base station;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
(特徴22)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信することと、
前記制御情報に含まれる前記ユーザ機器情報を取得することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。 (Feature 22)
User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments capable of cooperatively transmitting said data to a base station (300). receiving from the user equipment control information comprising:
obtaining the user equipment information included in the control information;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信することと、
前記制御情報に含まれる前記ユーザ機器情報を取得することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。 (Feature 22)
User equipment information indicating two or more user equipments (100) capable of transmitting or receiving data in direct communication, said two or more user equipments capable of cooperatively transmitting said data to a base station (300). receiving from the user equipment control information comprising:
obtaining the user equipment information included in the control information;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
また、上述した実施形態に含まれる技術的特徴は、上記特徴のほかに、以下のような特徴として表現されてもよい。当然ながら、本開示は以下のような特徴に限定されない。
In addition, the technical features included in the above-described embodiments may be expressed as the following features in addition to the above features. Of course, the disclosure is not limited to the following features.
(特徴31)
ユーザ機器(100)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を取得する情報取得部(131)と、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記基地局情報を含む制御情報を前記第2の基地局へ送信する通信処理部(133)と、
を備えるユーザ機器。 (Feature 31)
A user equipment (100),
Two or more user equipments capable of transmitting or receiving data in direct communication, wherein a first base station among said two or more user equipments capable of cooperatively transmitting said data to a base station (300). an information acquisition unit (131) for acquiring base station information indicating one or more first user equipments and said first base station capable of communicating with (300); one or more second user equipment operable to communicate with a base station (300) of
a communication processing unit (133) that transmits control information including the base station information to the second base station;
user equipment.
ユーザ機器(100)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を取得する情報取得部(131)と、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記基地局情報を含む制御情報を前記第2の基地局へ送信する通信処理部(133)と、
を備えるユーザ機器。 (Feature 31)
A user equipment (100),
Two or more user equipments capable of transmitting or receiving data in direct communication, wherein a first base station among said two or more user equipments capable of cooperatively transmitting said data to a base station (300). an information acquisition unit (131) for acquiring base station information indicating one or more first user equipments and said first base station capable of communicating with (300); one or more second user equipment operable to communicate with a base station (300) of
a communication processing unit (133) that transmits control information including the base station information to the second base station;
user equipment.
(特徴32)
前記通信処理部は、前記第1のユーザ機器が通信可能な前記第1の基地局を示す情報を含む別の制御情報を前記直接通信で前記第1のユーザ機器から受信し、
前記情報取得部は、前記別の制御情報の送信元である前記第1のユーザ機器及び前記制御情報に含まれる前記第1の基地局を示す前記基地局情報を取得する
特徴31に記載のユーザ機器。 (Feature 32)
The communication processing unit receives another control information including information indicating the first base station with which the first user equipment can communicate from the first user equipment in the direct communication,
The user according to feature 31, wherein the information acquisition unit acquires the base station information indicating the first user equipment that is a transmission source of the another control information and the first base station included in the control information. machine.
前記通信処理部は、前記第1のユーザ機器が通信可能な前記第1の基地局を示す情報を含む別の制御情報を前記直接通信で前記第1のユーザ機器から受信し、
前記情報取得部は、前記別の制御情報の送信元である前記第1のユーザ機器及び前記制御情報に含まれる前記第1の基地局を示す前記基地局情報を取得する
特徴31に記載のユーザ機器。 (Feature 32)
The communication processing unit receives another control information including information indicating the first base station with which the first user equipment can communicate from the first user equipment in the direct communication,
The user according to feature 31, wherein the information acquisition unit acquires the base station information indicating the first user equipment that is a transmission source of the another control information and the first base station included in the control information. machine.
(特徴33)
前記情報取得部は、前記1つ以上の第2のユーザ機器及び前記第2の基地局を示す別の基地局情報を取得し、
前記通信処理部は、前記別の基地局情報を含む制御情報を前記第2の基地局へ送信する、
特徴31又は32に記載のユーザ機器。 (Feature 33)
the information acquisition unit acquires another base station information indicating the one or more second user equipments and the second base station;
wherein the communication processing unit transmits control information including the another base station information to the second base station;
User equipment according to feature 31 or 32.
前記情報取得部は、前記1つ以上の第2のユーザ機器及び前記第2の基地局を示す別の基地局情報を取得し、
前記通信処理部は、前記別の基地局情報を含む制御情報を前記第2の基地局へ送信する、
特徴31又は32に記載のユーザ機器。 (Feature 33)
the information acquisition unit acquires another base station information indicating the one or more second user equipments and the second base station;
wherein the communication processing unit transmits control information including the another base station information to the second base station;
User equipment according to feature 31 or 32.
(特徴34)
前記情報取得部は、前記2つ以上のユーザ機器を示すユーザ機器情報を取得し、
前記通信処理部は、前記ユーザ機器情報を含む制御情報を前記第2の基地局へ送信する、
特徴31~33のいずれか1項に記載のユーザ機器。 (Feature 34)
The information acquisition unit acquires user device information indicating the two or more user devices,
wherein the communication processing unit transmits control information including the user equipment information to the second base station;
User equipment according to any one of the features 31-33.
前記情報取得部は、前記2つ以上のユーザ機器を示すユーザ機器情報を取得し、
前記通信処理部は、前記ユーザ機器情報を含む制御情報を前記第2の基地局へ送信する、
特徴31~33のいずれか1項に記載のユーザ機器。 (Feature 34)
The information acquisition unit acquires user device information indicating the two or more user devices,
wherein the communication processing unit transmits control information including the user equipment information to the second base station;
User equipment according to any one of the features 31-33.
(特徴35)
前記情報取得部は、前記データを前記ユーザ機器内で取得し、
前記通信処理部は、取得された前記データを前記2つ以上のユーザ機器のうちの少なくとも1つのユーザ機器へ送信する、
特徴31~34のいずれか1項に記載のユーザ機器。 (Feature 35)
The information acquisition unit acquires the data within the user device,
wherein the communication processing unit transmits the acquired data to at least one user device among the two or more user devices;
User equipment according to any one of the features 31-34.
前記情報取得部は、前記データを前記ユーザ機器内で取得し、
前記通信処理部は、取得された前記データを前記2つ以上のユーザ機器のうちの少なくとも1つのユーザ機器へ送信する、
特徴31~34のいずれか1項に記載のユーザ機器。 (Feature 35)
The information acquisition unit acquires the data within the user device,
wherein the communication processing unit transmits the acquired data to at least one user device among the two or more user devices;
User equipment according to any one of the features 31-34.
(特徴36)
前記通信処理部は、前記基地局情報を含む別の制御情報を他のユーザ機器から前記直接通信で受信し、
前記情報取得部は、前記別の制御情報に含まれる前記基地局情報を取得する、
特徴31~34のいずれか1項に記載のユーザ機器。 (Feature 36)
The communication processing unit receives other control information including the base station information from other user equipment through the direct communication,
the information acquisition unit acquires the base station information included in the different control information;
User equipment according to any one of the features 31-34.
前記通信処理部は、前記基地局情報を含む別の制御情報を他のユーザ機器から前記直接通信で受信し、
前記情報取得部は、前記別の制御情報に含まれる前記基地局情報を取得する、
特徴31~34のいずれか1項に記載のユーザ機器。 (Feature 36)
The communication processing unit receives other control information including the base station information from other user equipment through the direct communication,
the information acquisition unit acquires the base station information included in the different control information;
User equipment according to any one of the features 31-34.
(特徴37)
前記情報取得部は、前記第2の基地局と通信可能なユーザ機器を示す代表ユーザ機器情報を取得し、
前記通信処理部は、前記ユーザ機器が前記代表ユーザ機器情報により示されるユーザ機器である場合、前記基地局情報を含む制御情報を前記第2の基地局へ送信する、
特徴31~36のいずれか1項に記載のユーザ機器。 (Feature 37)
The information acquisition unit acquires representative user device information indicating user devices capable of communicating with the second base station,
When the user equipment is the user equipment indicated by the representative user equipment information, the communication processing unit transmits control information including the base station information to the second base station.
User equipment according to any one of the features 31-36.
前記情報取得部は、前記第2の基地局と通信可能なユーザ機器を示す代表ユーザ機器情報を取得し、
前記通信処理部は、前記ユーザ機器が前記代表ユーザ機器情報により示されるユーザ機器である場合、前記基地局情報を含む制御情報を前記第2の基地局へ送信する、
特徴31~36のいずれか1項に記載のユーザ機器。 (Feature 37)
The information acquisition unit acquires representative user device information indicating user devices capable of communicating with the second base station,
When the user equipment is the user equipment indicated by the representative user equipment information, the communication processing unit transmits control information including the base station information to the second base station.
User equipment according to any one of the features 31-36.
(特徴38)
前記直接通信は、サイドリンク通信である、
特徴31~37のいずれか1項に記載のユーザ機器。 (Feature 38)
wherein the direct communication is a sidelink communication;
User equipment according to any one of the features 31-37.
前記直接通信は、サイドリンク通信である、
特徴31~37のいずれか1項に記載のユーザ機器。 (Feature 38)
wherein the direct communication is a sidelink communication;
User equipment according to any one of the features 31-37.
(特徴39)
前記制御情報は、UCI(Uplink Control Information)、MAC CE(Media Access Control Control Element)又はRRC(Radio Resource Control)メッセージである、
特徴31~38のいずれか1項に記載のユーザ機器。 (Feature 39)
The control information is UCI (Uplink Control Information), MAC CE (Media Access Control Control Element) or RRC (Radio Resource Control) message,
User equipment according to any one of the features 31-38.
前記制御情報は、UCI(Uplink Control Information)、MAC CE(Media Access Control Control Element)又はRRC(Radio Resource Control)メッセージである、
特徴31~38のいずれか1項に記載のユーザ機器。 (Feature 39)
The control information is UCI (Uplink Control Information), MAC CE (Media Access Control Control Element) or RRC (Radio Resource Control) message,
User equipment according to any one of the features 31-38.
(特徴40)
第2の基地局(300)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を含む制御情報をユーザ機器から受信する通信処理部(343)と、前記2つ以上のユーザ機器は、前記第2の基地局と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記基地局情報を取得する情報取得部(341)と、
を備える第2の基地局。 (Feature 40)
A second base station (300),
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) a communication processing unit (343) that receives from the user equipment control information including base station information indicating one or more first user equipment and the first base station that can communicate with the base station (300) of the two or more user equipment includes one or more second user equipment operable to communicate with the second base station;
an information acquisition unit (341) that acquires the base station information included in the control information;
A second base station comprising:
第2の基地局(300)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を含む制御情報をユーザ機器から受信する通信処理部(343)と、前記2つ以上のユーザ機器は、前記第2の基地局と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記基地局情報を取得する情報取得部(341)と、
を備える第2の基地局。 (Feature 40)
A second base station (300),
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) a communication processing unit (343) that receives from the user equipment control information including base station information indicating one or more first user equipment and the first base station that can communicate with the base station (300) of the two or more user equipment includes one or more second user equipment operable to communicate with the second base station;
an information acquisition unit (341) that acquires the base station information included in the control information;
A second base station comprising:
(特徴41)
前記通信処理部(345)は、前記1つ以上の第1のユーザ機器を示す情報を含む制御情報を前記第1の基地局へ送信する、
特徴40に記載の第2の基地局。 (Feature 41)
The communication processing unit (345) transmits control information including information indicating the one or more first user equipments to the first base station;
The second base station of feature 40.
前記通信処理部(345)は、前記1つ以上の第1のユーザ機器を示す情報を含む制御情報を前記第1の基地局へ送信する、
特徴40に記載の第2の基地局。 (Feature 41)
The communication processing unit (345) transmits control information including information indicating the one or more first user equipments to the first base station;
The second base station of feature 40.
(特徴42)
前記情報取得部は、前記データの識別のためのデータ識別情報を取得し、
前記通信処理部は、前記データ識別情報を含む制御情報を前記第1の基地局へ送信する、
特徴40又は41に記載の第2の基地局。 (Feature 42)
The information acquisition unit acquires data identification information for identifying the data,
wherein the communication processing unit transmits control information including the data identification information to the first base station;
A second base station according to feature 40 or 41.
前記情報取得部は、前記データの識別のためのデータ識別情報を取得し、
前記通信処理部は、前記データ識別情報を含む制御情報を前記第1の基地局へ送信する、
特徴40又は41に記載の第2の基地局。 (Feature 42)
The information acquisition unit acquires data identification information for identifying the data,
wherein the communication processing unit transmits control information including the data identification information to the first base station;
A second base station according to feature 40 or 41.
(特徴43)
前記情報取得部は、前記第1のユーザ機器から前記第1の基地局へ送信される前記データの部分に関するデータ部分情報を取得し、
前記通信処理部は、前記データ部分情報を含む制御情報を前記第1の基地局へ送信する、
特徴40~42のいずれか1項に記載の第2の基地局。 (Feature 43)
the information acquisition unit acquires data portion information regarding a portion of the data to be transmitted from the first user equipment to the first base station;
wherein the communication processing unit transmits control information including the data part information to the first base station;
A second base station according to any one of the features 40-42.
前記情報取得部は、前記第1のユーザ機器から前記第1の基地局へ送信される前記データの部分に関するデータ部分情報を取得し、
前記通信処理部は、前記データ部分情報を含む制御情報を前記第1の基地局へ送信する、
特徴40~42のいずれか1項に記載の第2の基地局。 (Feature 43)
the information acquisition unit acquires data portion information regarding a portion of the data to be transmitted from the first user equipment to the first base station;
wherein the communication processing unit transmits control information including the data part information to the first base station;
A second base station according to any one of the features 40-42.
(特徴44)
前記通信処理部は、前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信し、
前記情報取得部は、前記制御情報に含まれる前記ユーザ機器情報を取得する、
特徴40~43のいずれか1項に記載の基地局。 (Feature 44)
The communication processing unit receives control information including user device information indicating the two or more user devices from the user device,
the information acquisition unit acquires the user device information included in the control information;
A base station according to any one of features 40-43.
前記通信処理部は、前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信し、
前記情報取得部は、前記制御情報に含まれる前記ユーザ機器情報を取得する、
特徴40~43のいずれか1項に記載の基地局。 (Feature 44)
The communication processing unit receives control information including user device information indicating the two or more user devices from the user device,
the information acquisition unit acquires the user device information included in the control information;
A base station according to any one of features 40-43.
(特徴45)
前記情報取得部は、アップリンクリソースを示すリソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報を含む制御情報を前記ユーザ機器情報により示される前記2つ以上のユーザ機器のうちの前記1つ以上の第2のユーザ機器へ送信する、
特徴44に記載の基地局。 (Feature 45)
The information acquisition unit acquires resource allocation information indicating uplink resources,
wherein the communication processing unit transmits control information including the resource allocation information to the one or more second user equipments among the two or more user equipments indicated by the user equipment information;
45. The base station of feature 44.
前記情報取得部は、アップリンクリソースを示すリソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報を含む制御情報を前記ユーザ機器情報により示される前記2つ以上のユーザ機器のうちの前記1つ以上の第2のユーザ機器へ送信する、
特徴44に記載の基地局。 (Feature 45)
The information acquisition unit acquires resource allocation information indicating uplink resources,
wherein the communication processing unit transmits control information including the resource allocation information to the one or more second user equipments among the two or more user equipments indicated by the user equipment information;
45. The base station of feature 44.
(特徴46)
前記通信処理部は、前記ユーザ機器情報により示される前記2つ以上のユーザ機器のうちの前記1つ以上の第2のユーザ機器からリファレンス信号を受信し、
前記リソース割当情報は、前記リファレンス信号に基づき決定されるアップリンクリソースを示す、
特徴45に記載の基地局。 (Feature 46)
The communication processing unit receives a reference signal from the one or more second user equipments among the two or more user equipments indicated by the user equipment information;
the resource allocation information indicates uplink resources determined based on the reference signal;
46. The base station of feature 45.
前記通信処理部は、前記ユーザ機器情報により示される前記2つ以上のユーザ機器のうちの前記1つ以上の第2のユーザ機器からリファレンス信号を受信し、
前記リソース割当情報は、前記リファレンス信号に基づき決定されるアップリンクリソースを示す、
特徴45に記載の基地局。 (Feature 46)
The communication processing unit receives a reference signal from the one or more second user equipments among the two or more user equipments indicated by the user equipment information;
the resource allocation information indicates uplink resources determined based on the reference signal;
46. The base station of feature 45.
(特徴47)
前記ユーザ機器情報により示される前記2つ以上のユーザ機器のうちの前記1つ以上の第2のユーザ機器は、2つ以上の第2のユーザ機器であり、
前記情報取得部は、前記2つ以上の第2のユーザ機器の協調送信に関する協調プリコーディングを取得し、
前記通信処理部は、前記協調プリコーディングを含む制御情報を前記2つ以上の第2のユーザ機器へ送信する、
特徴44~46のいずれか1項に記載の基地局。 (Feature 47)
the one or more second user equipments among the two or more user equipments indicated by the user equipment information are two or more second user equipments;
the information obtaining unit obtains cooperative precoding for cooperative transmission of the two or more second user equipments;
The communication processing unit transmits control information including the cooperative precoding to the two or more second user equipments.
A base station according to any one of features 44-46.
前記ユーザ機器情報により示される前記2つ以上のユーザ機器のうちの前記1つ以上の第2のユーザ機器は、2つ以上の第2のユーザ機器であり、
前記情報取得部は、前記2つ以上の第2のユーザ機器の協調送信に関する協調プリコーディングを取得し、
前記通信処理部は、前記協調プリコーディングを含む制御情報を前記2つ以上の第2のユーザ機器へ送信する、
特徴44~46のいずれか1項に記載の基地局。 (Feature 47)
the one or more second user equipments among the two or more user equipments indicated by the user equipment information are two or more second user equipments;
the information obtaining unit obtains cooperative precoding for cooperative transmission of the two or more second user equipments;
The communication processing unit transmits control information including the cooperative precoding to the two or more second user equipments.
A base station according to any one of features 44-46.
(特徴48)
第1の基地局(300)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、前記第1の基地局と通信可能な1つ以上の第1のユーザ機器を示すユーザ機器情報を含む制御情報を第2の基地局(300)から受信する通信処理部(345)と、前記2つ以上のユーザ機器は、前記第2の基地局と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記ユーザ機器情報を取得する情報取得部(341)と、
を備える第1の基地局。 (Feature 48)
A first base station (300),
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein among said two or more user equipments capable of cooperatively transmitting said data to a base station (300), said first a communication processing unit (345) for receiving control information from a second base station (300) including user equipment information indicating one or more first user equipments capable of communicating with one base station; comprises one or more second user equipment operable to communicate with said second base station;
an information acquisition unit (341) for acquiring the user device information included in the control information;
A first base station comprising:
第1の基地局(300)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、前記第1の基地局と通信可能な1つ以上の第1のユーザ機器を示すユーザ機器情報を含む制御情報を第2の基地局(300)から受信する通信処理部(345)と、前記2つ以上のユーザ機器は、前記第2の基地局と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記ユーザ機器情報を取得する情報取得部(341)と、
を備える第1の基地局。 (Feature 48)
A first base station (300),
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein among said two or more user equipments capable of cooperatively transmitting said data to a base station (300), said first a communication processing unit (345) for receiving control information from a second base station (300) including user equipment information indicating one or more first user equipments capable of communicating with one base station; comprises one or more second user equipment operable to communicate with said second base station;
an information acquisition unit (341) for acquiring the user device information included in the control information;
A first base station comprising:
(特徴49)
前記通信処理部は、前記データの識別のためのデータ識別情報を含む制御情報を前記第2の基地局から受信し、
前記情報取得部は、前記制御情報に含まれる前記データ識別情報を取得する、
特徴48に記載の第1の基地局。 (Feature 49)
The communication processing unit receives control information including data identification information for identifying the data from the second base station,
the information acquisition unit acquires the data identification information included in the control information;
The first base station of feature 48.
前記通信処理部は、前記データの識別のためのデータ識別情報を含む制御情報を前記第2の基地局から受信し、
前記情報取得部は、前記制御情報に含まれる前記データ識別情報を取得する、
特徴48に記載の第1の基地局。 (Feature 49)
The communication processing unit receives control information including data identification information for identifying the data from the second base station,
the information acquisition unit acquires the data identification information included in the control information;
The first base station of feature 48.
(特徴50)
前記通信処理部(343)は、前記データ識別情報を含む制御情報を前記1つ以上の第1のユーザ機器へ送信する
特徴49に記載の第1の基地局。 (Feature 50)
50. The first base station of feature 49, wherein the communication processing unit (343) is configured to transmit control information including the data identification information to the one or more first user equipments.
前記通信処理部(343)は、前記データ識別情報を含む制御情報を前記1つ以上の第1のユーザ機器へ送信する
特徴49に記載の第1の基地局。 (Feature 50)
50. The first base station of feature 49, wherein the communication processing unit (343) is configured to transmit control information including the data identification information to the one or more first user equipments.
(特徴51)
前記通信処理部は、前記1つ以上の第1のユーザ機器から前記第1の基地局へ送信される前記データの部分に関するデータ部分情報を含む制御情報を前記第2の基地局から受信し、
前記情報取得部は、前記制御情報に含まれる前記データ部分情報を取得する、
特徴48~50のいずれか1項に記載の第1の基地局。 (Feature 51)
the communication processing unit receives from the second base station control information including data portion information relating to portions of the data to be transmitted from the one or more first user equipments to the first base station;
the information acquisition unit acquires the data part information included in the control information;
The first base station according to any one of features 48-50.
前記通信処理部は、前記1つ以上の第1のユーザ機器から前記第1の基地局へ送信される前記データの部分に関するデータ部分情報を含む制御情報を前記第2の基地局から受信し、
前記情報取得部は、前記制御情報に含まれる前記データ部分情報を取得する、
特徴48~50のいずれか1項に記載の第1の基地局。 (Feature 51)
the communication processing unit receives from the second base station control information including data portion information relating to portions of the data to be transmitted from the one or more first user equipments to the first base station;
the information acquisition unit acquires the data part information included in the control information;
The first base station according to any one of features 48-50.
(特徴52)
前記情報取得部は、前記データ部分情報に基づき決定されるアップリンクリソースを示すリソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報を含む制御情報を前記1つ以上の第1のユーザ機器へ送信する、
特徴51に記載の第1の基地局。 (Feature 52)
The information acquisition unit acquires resource allocation information indicating uplink resources determined based on the data part information,
The communication processing unit transmits control information including the resource allocation information to the one or more first user equipments.
The first base station of feature 51.
前記情報取得部は、前記データ部分情報に基づき決定されるアップリンクリソースを示すリソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報を含む制御情報を前記1つ以上の第1のユーザ機器へ送信する、
特徴51に記載の第1の基地局。 (Feature 52)
The information acquisition unit acquires resource allocation information indicating uplink resources determined based on the data part information,
The communication processing unit transmits control information including the resource allocation information to the one or more first user equipments.
The first base station of feature 51.
(特徴53)
前記情報取得部は、アップリンクリソースを示すリソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報を含む制御情報を前記1つ以上の第1のユーザ機器へ送信する、
特徴48~51のいずれか1項に記載の第1の基地局。 (Feature 53)
The information acquisition unit acquires resource allocation information indicating uplink resources,
The communication processing unit transmits control information including the resource allocation information to the one or more first user equipments.
52. The first base station according to any one of features 48-51.
前記情報取得部は、アップリンクリソースを示すリソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報を含む制御情報を前記1つ以上の第1のユーザ機器へ送信する、
特徴48~51のいずれか1項に記載の第1の基地局。 (Feature 53)
The information acquisition unit acquires resource allocation information indicating uplink resources,
The communication processing unit transmits control information including the resource allocation information to the one or more first user equipments.
52. The first base station according to any one of features 48-51.
(特徴54)
前記通信処理部は、前記1つ以上の第1のユーザ機器からリファレンス信号を受信し、
前記リソース割当情報は、前記リファレンス信号に基づき決定されるアップリンクリソースを示す、
特徴52又は53に記載の第1の基地局。 (Feature 54)
the communication processing unit receives a reference signal from the one or more first user equipment;
the resource allocation information indicates uplink resources determined based on the reference signal;
54. The first base station of feature 52 or 53.
前記通信処理部は、前記1つ以上の第1のユーザ機器からリファレンス信号を受信し、
前記リソース割当情報は、前記リファレンス信号に基づき決定されるアップリンクリソースを示す、
特徴52又は53に記載の第1の基地局。 (Feature 54)
the communication processing unit receives a reference signal from the one or more first user equipment;
the resource allocation information indicates uplink resources determined based on the reference signal;
54. The first base station of feature 52 or 53.
(特徴55)
前記1つ以上の第1のユーザ機器は、2つ以上の第1のユーザ機器であり、
前記情報取得部は、前記2つ以上の第1のユーザ機器の協調送信に関する協調プリコーディングを取得し、
前記通信処理部は、前記協調プリコーディングを含む制御情報を前記2つ以上の第1のユーザ機器へ送信する、
特徴48~54のいずれか1項に記載の第1の基地局。 (Feature 55)
the one or more first user equipment is two or more first user equipment;
the information acquisition unit acquires cooperative precoding for cooperative transmission of the two or more first user equipments;
The communication processing unit transmits control information including the cooperative precoding to the two or more first user equipments.
The first base station according to any one of features 48-54.
前記1つ以上の第1のユーザ機器は、2つ以上の第1のユーザ機器であり、
前記情報取得部は、前記2つ以上の第1のユーザ機器の協調送信に関する協調プリコーディングを取得し、
前記通信処理部は、前記協調プリコーディングを含む制御情報を前記2つ以上の第1のユーザ機器へ送信する、
特徴48~54のいずれか1項に記載の第1の基地局。 (Feature 55)
the one or more first user equipment is two or more first user equipment;
the information acquisition unit acquires cooperative precoding for cooperative transmission of the two or more first user equipments;
The communication processing unit transmits control information including the cooperative precoding to the two or more first user equipments.
The first base station according to any one of features 48-54.
(特徴56)
ユーザ機器(100)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器から送信される前記データの識別のためのデータ識別情報を含む制御情報を前記基地局から受信する通信処理部(133)と、
前記制御情報に含まれる前記データ識別情報を取得する情報取得部(131)と、
を備えるユーザ機器。 (Feature 56)
A user equipment (100),
identification of the data transmitted from two or more user equipments capable of transmitting or receiving data in direct communication and cooperatively transmitting said data to a base station (300); a communication processing unit (133) that receives control information including data identification information for from the base station;
an information acquisition unit (131) for acquiring the data identification information included in the control information;
user equipment.
ユーザ機器(100)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器から送信される前記データの識別のためのデータ識別情報を含む制御情報を前記基地局から受信する通信処理部(133)と、
前記制御情報に含まれる前記データ識別情報を取得する情報取得部(131)と、
を備えるユーザ機器。 (Feature 56)
A user equipment (100),
identification of the data transmitted from two or more user equipments capable of transmitting or receiving data in direct communication and cooperatively transmitting said data to a base station (300); a communication processing unit (133) that receives control information including data identification information for from the base station;
an information acquisition unit (131) for acquiring the data identification information included in the control information;
user equipment.
(特徴57)
前記通信処理部は、前記データ識別情報に対応するアップリンクリソースを示すリソース割当情報を含む制御情報を前記基地局から受信し、
前記情報取得部は、前記制御情報に含まれる前記リソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報が示すアップリンクリソースを用いて、前記データ識別情報により識別される前記データを前記基地局へ送信する、
特徴56に記載のユーザ機器。 (Feature 57)
The communication processing unit receives control information including resource allocation information indicating uplink resources corresponding to the data identification information from the base station,
The information acquisition unit acquires the resource allocation information included in the control information,
The communication processing unit uses uplink resources indicated by the resource allocation information to transmit the data identified by the data identification information to the base station.
User equipment according to feature 56.
前記通信処理部は、前記データ識別情報に対応するアップリンクリソースを示すリソース割当情報を含む制御情報を前記基地局から受信し、
前記情報取得部は、前記制御情報に含まれる前記リソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報が示すアップリンクリソースを用いて、前記データ識別情報により識別される前記データを前記基地局へ送信する、
特徴56に記載のユーザ機器。 (Feature 57)
The communication processing unit receives control information including resource allocation information indicating uplink resources corresponding to the data identification information from the base station,
The information acquisition unit acquires the resource allocation information included in the control information,
The communication processing unit uses uplink resources indicated by the resource allocation information to transmit the data identified by the data identification information to the base station.
User equipment according to feature 56.
(特徴58)
ユーザ機器(100)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を取得し、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記基地局情報を含む制御情報を第2の基地局へ送信する、
方法。 (Feature 58)
A method performed by a user equipment (100), comprising:
Two or more user equipments capable of transmitting or receiving data in direct communication, wherein a first base station among said two or more user equipments capable of cooperatively transmitting said data to a base station (300). Obtain base station information indicating one or more first user equipments and the first base station communicable with (300), wherein the two or more user equipments communicate with a second base station (300). including one or more second user equipment capable of communicating;
transmitting control information including the base station information to a second base station;
Method.
ユーザ機器(100)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を取得し、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記基地局情報を含む制御情報を第2の基地局へ送信する、
方法。 (Feature 58)
A method performed by a user equipment (100), comprising:
Two or more user equipments capable of transmitting or receiving data in direct communication, wherein a first base station among said two or more user equipments capable of cooperatively transmitting said data to a base station (300). Obtain base station information indicating one or more first user equipments and the first base station communicable with (300), wherein the two or more user equipments communicate with a second base station (300). including one or more second user equipment capable of communicating;
transmitting control information including the base station information to a second base station;
Method.
(特徴59)
第2の基地局(300)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を含む制御情報をユーザ機器から受信し、前記2つ以上のユーザ機器は、前記第2の基地局と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記基地局情報を取得する、
方法。 (Feature 59)
A method performed by a second base station (300), comprising:
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) receiving control information from the user equipment including base station information indicative of one or more first user equipment and said first base station capable of communicating with a base station (300) of said two or more user equipment, said two or more user equipment comprising: , one or more second user equipment operable to communicate with said second base station;
obtaining the base station information included in the control information;
Method.
第2の基地局(300)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を含む制御情報をユーザ機器から受信し、前記2つ以上のユーザ機器は、前記第2の基地局と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記基地局情報を取得する、
方法。 (Feature 59)
A method performed by a second base station (300), comprising:
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) receiving control information from the user equipment including base station information indicative of one or more first user equipment and said first base station capable of communicating with a base station (300) of said two or more user equipment, said two or more user equipment comprising: , one or more second user equipment operable to communicate with said second base station;
obtaining the base station information included in the control information;
Method.
(特徴60)
第1の基地局(300)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局に送信可能な前記2つ以上のユーザ機器のうち、前記第1の基地局と通信可能な1つ以上の第1のユーザ機器を示すユーザ機器情報を含む制御情報を第2の基地局(300)から受信し、前記2つ以上のユーザ機器は、前記第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記ユーザ機器情報を取得する、
方法。 (Feature 60)
A method performed by a first base station (300), comprising:
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, said first base among said two or more user equipments capable of cooperatively transmitting said data to a base station. receiving control information from a second base station (300) including user equipment information indicative of one or more first user equipments capable of communicating with the station, said two or more user equipments communicating with said second base station; including one or more second user equipment operable to communicate with the station (300);
obtaining the user equipment information included in the control information;
Method.
第1の基地局(300)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局に送信可能な前記2つ以上のユーザ機器のうち、前記第1の基地局と通信可能な1つ以上の第1のユーザ機器を示すユーザ機器情報を含む制御情報を第2の基地局(300)から受信し、前記2つ以上のユーザ機器は、前記第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記ユーザ機器情報を取得する、
方法。 (Feature 60)
A method performed by a first base station (300), comprising:
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, said first base among said two or more user equipments capable of cooperatively transmitting said data to a base station. receiving control information from a second base station (300) including user equipment information indicative of one or more first user equipments capable of communicating with the station, said two or more user equipments communicating with said second base station; including one or more second user equipment operable to communicate with the station (300);
obtaining the user equipment information included in the control information;
Method.
(特徴61)
ユーザ機器(100)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器から送信される前記データの識別のためのデータ識別情報を含む制御情報を前記基地局から受信し、
前記制御情報に含まれる前記データ識別情報を取得する、
方法。 (Feature 61)
A method performed by a user equipment (100), comprising:
identification of the data transmitted from two or more user equipments capable of transmitting or receiving data in direct communication and cooperatively transmitting said data to a base station (300); receiving control information from the base station including data identification information for
obtaining the data identification information included in the control information;
Method.
ユーザ機器(100)により行われる方法であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器から送信される前記データの識別のためのデータ識別情報を含む制御情報を前記基地局から受信し、
前記制御情報に含まれる前記データ識別情報を取得する、
方法。 (Feature 61)
A method performed by a user equipment (100), comprising:
identification of the data transmitted from two or more user equipments capable of transmitting or receiving data in direct communication and cooperatively transmitting said data to a base station (300); receiving control information from the base station including data identification information for
obtaining the data identification information included in the control information;
Method.
(特徴62)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を取得することと、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記基地局情報を含む制御情報を前記第2の基地局へ送信することと、
をコンピュータに実行させるプログラム。 (Feature 62)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) obtaining base station information indicative of one or more first user equipments and said first base stations communicable with a base station (300) of said two or more user equipments, said two or more user equipments communicating with a second base station including one or more second user equipment operable to communicate with the station (300);
transmitting control information including the base station information to the second base station;
A program that makes a computer run
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を取得することと、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記基地局情報を含む制御情報を前記第2の基地局へ送信することと、
をコンピュータに実行させるプログラム。 (Feature 62)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) obtaining base station information indicative of one or more first user equipments and said first base stations communicable with a base station (300) of said two or more user equipments, said two or more user equipments communicating with a second base station including one or more second user equipment operable to communicate with the station (300);
transmitting control information including the base station information to the second base station;
A program that makes a computer run
(特徴63)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を含む制御情報をユーザ機器から受信することと、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記基地局情報を取得することと、
をコンピュータに実行させるプログラム。 (Feature 63)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first base station of said two or more user equipments capable of cooperatively transmitting said data to a base station. (300) receiving control information from the user equipment including base station information indicative of one or more first user equipment and said first base station in communication with said two or more user equipment; comprising one or more second user equipment operable to communicate with a second base station (300);
obtaining the base station information included in the control information;
A program that makes a computer run
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を含む制御情報をユーザ機器から受信することと、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記基地局情報を取得することと、
をコンピュータに実行させるプログラム。 (Feature 63)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first base station of said two or more user equipments capable of cooperatively transmitting said data to a base station. (300) receiving control information from the user equipment including base station information indicative of one or more first user equipment and said first base station in communication with said two or more user equipment; comprising one or more second user equipment operable to communicate with a second base station (300);
obtaining the base station information included in the control information;
A program that makes a computer run
(特徴64)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器を示すユーザ機器情報を含む制御情報を第2の基地局(300)から受信することと、前記2つ以上のユーザ機器は、前記第2の基地局と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記ユーザ機器情報を取得することと、
をコンピュータに実行させるプログラム。 (Feature 64)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) receiving control information from a second base station (300) including user equipment information indicative of one or more first user equipments capable of communicating with the base station (300) of the second base station (300); comprises one or more second user equipment operable to communicate with said second base station;
obtaining the user equipment information included in the control information;
A program that makes a computer run
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器を示すユーザ機器情報を含む制御情報を第2の基地局(300)から受信することと、前記2つ以上のユーザ機器は、前記第2の基地局と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記ユーザ機器情報を取得することと、
をコンピュータに実行させるプログラム。 (Feature 64)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) receiving control information from a second base station (300) including user equipment information indicative of one or more first user equipments capable of communicating with the base station (300) of the second base station (300); comprises one or more second user equipment operable to communicate with said second base station;
obtaining the user equipment information included in the control information;
A program that makes a computer run
(特徴65)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器から送信される前記データの識別のためのデータ識別情報を含む制御情報を前記基地局から受信することと、
前記制御情報に含まれる前記データ識別情報を取得することと、
をコンピュータに実行させるプログラム。 (Feature 65)
two or more user equipments (100) capable of transmitting or receiving data in direct communication, said transmitted from said two or more user equipments capable of cooperatively transmitting said data to a base station (300); receiving control information including data identification information for identifying data from the base station;
obtaining the data identification information included in the control information;
A program that makes a computer run
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器から送信される前記データの識別のためのデータ識別情報を含む制御情報を前記基地局から受信することと、
前記制御情報に含まれる前記データ識別情報を取得することと、
をコンピュータに実行させるプログラム。 (Feature 65)
two or more user equipments (100) capable of transmitting or receiving data in direct communication, said transmitted from said two or more user equipments capable of cooperatively transmitting said data to a base station (300); receiving control information including data identification information for identifying data from the base station;
obtaining the data identification information included in the control information;
A program that makes a computer run
(特徴66)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を取得することと、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記基地局情報を含む制御情報を前記第2の基地局へ送信することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。 (Feature 66)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) obtaining base station information indicative of one or more first user equipments and said first base stations communicable with a base station (300) of said two or more user equipments, said two or more user equipments communicating with a second base station including one or more second user equipment operable to communicate with the station (300);
transmitting control information including the base station information to the second base station;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を取得することと、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記基地局情報を含む制御情報を前記第2の基地局へ送信することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。 (Feature 66)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) obtaining base station information indicative of one or more first user equipments and said first base stations communicable with a base station (300) of said two or more user equipments, said two or more user equipments communicating with a second base station including one or more second user equipment operable to communicate with the station (300);
transmitting control information including the base station information to the second base station;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
(特徴67)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を含む制御情報をユーザ機器から受信することと、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記基地局情報を取得することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。 (Feature 67)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) receiving control information from user equipment including base station information indicative of one or more first user equipment and said first base stations capable of communicating with a base station (300) of said two or more users; the equipment includes one or more second user equipment operable to communicate with a second base station (300);
obtaining the base station information included in the control information;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器及び前記第1の基地局を示す基地局情報を含む制御情報をユーザ機器から受信することと、前記2つ以上のユーザ機器は、第2の基地局(300)と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記基地局情報を取得することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。 (Feature 67)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) receiving control information from user equipment including base station information indicative of one or more first user equipment and said first base stations capable of communicating with a base station (300) of said two or more users; the equipment includes one or more second user equipment operable to communicate with a second base station (300);
obtaining the base station information included in the control information;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
(特徴68)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器を示すユーザ機器情報を含む制御情報を第2の基地局(300)から受信することと、前記2つ以上のユーザ機器は、前記第2の基地局と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記ユーザ機器情報を取得することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。 (Feature 68)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) receiving control information from a second base station (300) including user equipment information indicative of one or more first user equipments capable of communicating with the base station (300) of the second base station (300); comprises one or more second user equipment operable to communicate with said second base station;
obtaining the user equipment information included in the control information;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器のうち、第1の基地局(300)と通信可能な1つ以上の第1のユーザ機器を示すユーザ機器情報を含む制御情報を第2の基地局(300)から受信することと、前記2つ以上のユーザ機器は、前記第2の基地局と通信可能な1つ以上の第2のユーザ機器を含み、
前記制御情報に含まれる前記ユーザ機器情報を取得することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。 (Feature 68)
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, wherein a first of said two or more user equipments capable of cooperatively transmitting said data to a base station (300) receiving control information from a second base station (300) including user equipment information indicative of one or more first user equipments capable of communicating with the base station (300) of the second base station (300); comprises one or more second user equipment operable to communicate with said second base station;
obtaining the user equipment information included in the control information;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
(特徴69)
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器から送信される前記データの識別のためのデータ識別情報を含む制御情報を前記基地局から受信することと、
前記制御情報に含まれる前記データ識別情報を取得することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。
(Feature 69)
two or more user equipments (100) capable of transmitting or receiving data in direct communication, said transmitted from said two or more user equipments capable of cooperatively transmitting said data to a base station (300); receiving control information including data identification information for identifying data from the base station;
obtaining the data identification information included in the control information;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを基地局(300)に送信可能な前記2つ以上のユーザ機器から送信される前記データの識別のためのデータ識別情報を含む制御情報を前記基地局から受信することと、
前記制御情報に含まれる前記データ識別情報を取得することと、
をコンピュータに実行させるプログラムを記録したコンピュータに読み取り可能な非遷移的実体的記録媒体。
(Feature 69)
two or more user equipments (100) capable of transmitting or receiving data in direct communication, said transmitted from said two or more user equipments capable of cooperatively transmitting said data to a base station (300); receiving control information including data identification information for identifying data from the base station;
obtaining the data identification information included in the control information;
A computer-readable non-transitional tangible recording medium in which a program for causing a computer to execute is recorded.
Claims (15)
- ユーザ機器(100)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器であって、協調的に前記データを基地局(300)へ送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を取得する情報取得部(131)と、
前記ユーザ機器情報を含む制御情報を前記基地局へ送信する通信処理部(133)と、
を備えるユーザ機器。 A user equipment (100),
obtaining user equipment information indicative of two or more user equipments capable of transmitting or receiving data in direct communication, said two or more user equipments capable of cooperatively transmitting said data to a base station (300); an information acquisition unit (131);
a communication processing unit (133) for transmitting control information including the user equipment information to the base station;
user equipment. - 前記ユーザ機器情報により示される前記2つ以上のユーザ機器は、ユーザ機器の特定のグループに属する、
請求項1に記載のユーザ機器。 the two or more user equipments indicated by the user equipment information belong to a particular group of user equipments;
2. User equipment according to claim 1. - 前記情報取得部は、前記ユーザ機器情報が有効である条件に関する有効条件情報を取得し、
前記通信処理部は、前記有効条件情報を含む制御情報を前記基地局に送信する、
請求項1又は2に記載のユーザ機器。 The information acquisition unit acquires valid condition information regarding a condition under which the user device information is valid,
wherein the communication processing unit transmits control information including the validity condition information to the base station;
User equipment according to claim 1 or 2. - 前記有効条件情報は、前記2つ以上のユーザ機器における前記直接通信を用いた前記データの送信又は受信の状況に関する通信状況情報を含む、
請求項3に記載のユーザ機器。 The validity condition information includes communication status information regarding the status of transmission or reception of the data using the direct communication at the two or more user devices,
4. User equipment according to claim 3. - 前記通信状況情報は、前記2つ以上のユーザ機器における前記直接通信を用いた前記データの送信又は受信の進行度を示す、
請求項4に記載のユーザ機器。 the communication status information indicates the progress of transmission or reception of the data using the direct communication at the two or more user devices;
5. User equipment according to claim 4. - 前記通信状況情報は、前記2つ以上のユーザ機器における前記直接通信の安定度を示す、
請求項4に記載のユーザ機器。 the communication status information indicates the stability of the direct communication between the two or more user devices;
5. User equipment according to claim 4. - 前記有効条件情報は、前記ユーザ機器情報の有効時間を示す、
請求項3に記載のユーザ機器。 the validity condition information indicates a validity time of the user equipment information;
4. User equipment according to claim 3. - 前記情報取得部は、前記データを前記ユーザ機器内で取得し、
前記通信処理部は、取得された前記データを前記2つ以上のユーザ機器のうちの少なくとも1つのユーザ機器へ送信する、
請求項1~7のいずれか1項に記載のユーザ機器。 The information acquisition unit acquires the data within the user device,
wherein the communication processing unit transmits the acquired data to at least one user device among the two or more user devices;
User equipment according to any one of claims 1-7. - 前記通信処理部は、前記ユーザ機器情報を含む別の制御情報を他のユーザ機器から前記直接通信で受信し、
前記情報取得部は、前記別の制御情報に含まれる前記ユーザ機器情報を取得する、
請求項1~7のいずれか1項に記載のユーザ機器。 The communication processing unit receives other control information including the user device information from another user device through the direct communication;
the information acquisition unit acquires the user equipment information included in the separate control information;
User equipment according to any one of claims 1-7. - 前記情報取得部は、前記基地局と通信可能なユーザ機器を示す代表ユーザ機器情報を取得し、
前記通信処理部は、前記ユーザ機器が前記代表ユーザ機器情報により示されるユーザ機器である場合、前記ユーザ機器情報を含む制御情報を前記基地局へ送信する、
請求項1~9のいずれか1項に記載のユーザ機器。 The information acquisition unit acquires representative user device information indicating user devices that can communicate with the base station,
If the user equipment is the user equipment indicated by the representative user equipment information, the communication processing unit transmits control information including the user equipment information to the base station.
User equipment according to any one of claims 1-9. - 前記直接通信は、サイドリンク通信である、
請求項1~10のいずれか1項に記載のユーザ機器。 wherein the direct communication is a sidelink communication;
User equipment according to any one of claims 1-10. - 前記制御情報は、UCI(Uplink Control Information)、MAC CE(Media Access Control Control Element)又はRRC(Radio Resource Control)メッセージである、
請求項1~11のいずれか1項に記載のユーザ機器。 The control information is UCI (Uplink Control Information), MAC CE (Media Access Control Control Element) or RRC (Radio Resource Control) message,
User equipment according to any one of claims 1-11. - 基地局(300)であって、
直接通信でデータを送信又は受信可能な2つ以上のユーザ機器(100)であって、協調的に前記データを前記基地局に送信可能な前記2つ以上のユーザ機器を示すユーザ機器情報を含む制御情報をユーザ機器から受信する通信処理部(343)と、
前記制御情報に含まれる前記ユーザ機器情報を取得する情報取得部(341)と、
を備える基地局。 A base station (300),
Two or more user equipments (100) capable of transmitting or receiving data in direct communication, comprising user equipment information indicative of said two or more user equipments capable of cooperatively transmitting said data to said base station. a communication processing unit (343) that receives control information from a user device;
an information acquisition unit (341) for acquiring the user device information included in the control information;
base station. - 前記情報取得部は、アップリンクリソースを示すリソース割当情報を取得し、
前記通信処理部は、前記リソース割当情報を含む制御情報を前記ユーザ機器情報により示される前記2つ以上のユーザ機器へ送信する、
請求項13に記載の基地局。 The information acquisition unit acquires resource allocation information indicating uplink resources,
wherein the communication processing unit transmits control information including the resource allocation information to the two or more user equipments indicated by the user equipment information;
14. A base station according to claim 13. - 前記通信処理部は、前記ユーザ機器情報により示される前記2つ以上のユーザ機器からそれぞれリファレンス信号を受信し、
前記リソース割当情報は、前記リファレンス信号に基づき決定されるアップリンクリソースを示す、
請求項14に記載の基地局。
The communication processing unit receives reference signals from each of the two or more user devices indicated by the user device information;
the resource allocation information indicates uplink resources determined based on the reference signal;
15. A base station according to claim 14.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021088659A JP2022181625A (en) | 2021-05-26 | 2021-05-26 | User apparatus and base station |
JP2021-088659 | 2021-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022249848A1 true WO2022249848A1 (en) | 2022-12-01 |
Family
ID=84228708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/019145 WO2022249848A1 (en) | 2021-05-26 | 2022-04-27 | User device and base station |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2022181625A (en) |
WO (1) | WO2022249848A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017511084A (en) * | 2014-02-10 | 2017-04-13 | 華為技術有限公司Huawei Technologies Co.,Ltd. | System and method for virtual multipoint transceiver |
WO2021090596A1 (en) * | 2019-11-07 | 2021-05-14 | ソニー株式会社 | Terminal device, base station device, method for controlling terminal device, and method for controlling base station device |
-
2021
- 2021-05-26 JP JP2021088659A patent/JP2022181625A/en active Pending
-
2022
- 2022-04-27 WO PCT/JP2022/019145 patent/WO2022249848A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017511084A (en) * | 2014-02-10 | 2017-04-13 | 華為技術有限公司Huawei Technologies Co.,Ltd. | System and method for virtual multipoint transceiver |
WO2021090596A1 (en) * | 2019-11-07 | 2021-05-14 | ソニー株式会社 | Terminal device, base station device, method for controlling terminal device, and method for controlling base station device |
Also Published As
Publication number | Publication date |
---|---|
JP2022181625A (en) | 2022-12-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3479647B1 (en) | Method for establishing a fronthaul interface and base station | |
KR102396950B1 (en) | Method and apparatus for redundant transmission for ultra reliable services in 5g network system | |
CN110351836B (en) | Method and equipment for configuring relay resources | |
US11082965B2 (en) | Resource allocation method and relevant device | |
US10334613B2 (en) | Signalling for group communications | |
US11399316B2 (en) | Method and apparatus to support resource sharing between an access link and a backhaul link | |
CN111586886B (en) | Control method and device for wireless backhaul link | |
US11973589B2 (en) | Mode switching method, data flow splitting method, and apparatus | |
KR101979813B1 (en) | Method and apparatus for providing communication service to a mobile station by cooperating a plurality of base stations in a wireless communication system | |
WO2022249848A1 (en) | User device and base station | |
WO2022249849A1 (en) | User equipment and base station | |
KR20230094174A (en) | Operation method of sidelink relay, and sidelink relay therefor | |
EP2769568B1 (en) | Logical address assignment in a cloud cell | |
WO2022249850A1 (en) | User equipment and base station | |
CN114424621A (en) | Buffer status report transmission method and device | |
WO2022163375A1 (en) | First user device, second user device and base station | |
KR20190103357A (en) | Connection method and device | |
KR101357907B1 (en) | Communication method in overlayed two-layer hierarchical cooperation networks | |
JP7392844B2 (en) | Communication methods, devices and communication systems for vehicle communication services | |
WO2022097343A1 (en) | Base station device, relay station device, communication control method, and communication control program | |
WO2022163374A1 (en) | User equipment and base station | |
JP2017063346A (en) | Wireless base station, wireless communication terminal, wireless communication method, and program | |
WO2024076265A1 (en) | Method performed by a first user equipment for coordinating resources for sidelink communication between user equipments. | |
WO2018181790A1 (en) | Radio communication method and system | |
CN115606210A (en) | User equipment, base station equipment, communication method, and computer-readable storage medium |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22811122 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 22811122 Country of ref document: EP Kind code of ref document: A1 |