WO2019153924A1 - Procédé, appareil et dispositif d'attribution de ressources dans un scénario de relais - Google Patents

Procédé, appareil et dispositif d'attribution de ressources dans un scénario de relais Download PDF

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Publication number
WO2019153924A1
WO2019153924A1 PCT/CN2018/123606 CN2018123606W WO2019153924A1 WO 2019153924 A1 WO2019153924 A1 WO 2019153924A1 CN 2018123606 W CN2018123606 W CN 2018123606W WO 2019153924 A1 WO2019153924 A1 WO 2019153924A1
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WIPO (PCT)
Prior art keywords
relay
node
nodes
relationship
resource
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PCT/CN2018/123606
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English (en)
Chinese (zh)
Inventor
林琳
彭莹
赵锐
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电信科学技术研究院有限公司
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Publication of WO2019153924A1 publication Critical patent/WO2019153924A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H04B7/15542—Selecting at relay station its transmit and receive resources
    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a resource allocation method, apparatus, and device in a relay scenario.
  • FIG. 1 is a schematic diagram of a communication mode of network centralized control in an LTE system.
  • LTE Long Term Evolution
  • communication is a centralized control mode, that is, user equipment (UE).
  • UE user equipment
  • the uplink and downlink data are transmitted and received under the control of the network.
  • the communication between the UE and the UE is forwarded and controlled by the network.
  • the data transmission between the UE and the network can be referred to as Device to Network. , D2N) transmission.
  • D2N Device to Network
  • D2D Device-to-device
  • D2D which is a terminal-through technology, refers to a method in which neighboring terminals can transmit data through a direct link in a short range without going through a central node (ie, a base station). Forwarding, there is no need to transmit information between UEs through a traditional cellular link.
  • the D2D proximity service includes the following two categories:
  • the UE uses an Evolution-Universal Terrestrial Radio Access Network (E-UTRA) to confirm that another UE is in its vicinity.
  • E-UTRA Evolution-Universal Terrestrial Radio Access Network
  • the D2D UE can use the service to find nearby taxis, find friends nearby, and the like;
  • D2D communication UEs that are close to each other, by directly establishing a link between two UEs (Fig. 2 is a schematic diagram of D2D discovery/communication, as shown in Fig. 2), so that the communication link originally transmitted through the network is converted into local
  • the direct communication link saves a lot of bandwidth and network efficiency; or two UEs that are close to each other can use direct link communication to obtain stable high-speed and low-cost communication services.
  • Proximity service communication is generally performed under the control or assistance of the network side, and the evolved base station (eNB) may even dynamically allocate resources for the UE performing the proximity service communication.
  • eNB evolved base station
  • D2D link refers to the link between the device and the device for direct communication
  • D2N link refers to the link between the device and the network node for communication.
  • UEs participating in D2D discovery/communication are divided into two roles:
  • D2D transmitting UE a UE that transmits a D2D discovery/communication message
  • the D2D receives the UE: that is, the UE that receives the discovery/communication message sent by the D2D transmitting UE.
  • the UE can perform D2D discovery or data transmission with the network or other UEs through a relay in the manner of D2D discovery and communication technologies.
  • Relay There are two types of Relay:
  • FIG. 3 is a schematic diagram of UE-to-Network Relay communication.
  • the way in which the UE communicates with the network through the Relay UE is called UE-to-Network Relay.
  • UE2 outside the network coverage uses UE1 as a Relay node to forward its own uplink and downlink signals through UE1.
  • the communication between the UE1 and the UE2 is implemented by D2D communication, and the UE1 and the network are implemented by using cellular communication.
  • FIG. 4 is a schematic diagram of UE-to-UE relay communication.
  • a method in which a UE performs discovery/communication with a target UE through a Relay UE is called a UE-to-UE relay.
  • the UE 2 can forward its own information through the UE1, wherein the UE1 and the UE2, the UE1 and the UE4 implement data transmission through D2D communication.
  • UE-to-UE Relay has not been standardized.
  • UE-to-Network Relay has done some standardization work.
  • UE-to-Nework Relay has two modes of operation:
  • L3UE-Network Relay L2UE-Network Relay.
  • Alt1 The base station broadcasts the high/low threshold of the Reference Signal Received Power/Reference Signal Received Quality (RSRP/RSRQ), and the UE that meets the threshold automatically starts/stops the Relay based on the information.
  • RSRP/RSRQ Reference Signal Received Power/Reference Signal Received Quality
  • the network can choose not to configure, configure one, or configure two thresholds.
  • Alt2 The base station can broadcast its support relay, but does not broadcast the transmission resource pool for the relay discovery.
  • the UE needs to request the relay discovery resource through dedicated signaling, and the base station configures the UE to activate the relay through dedicated signaling.
  • each node selects a transmission resource, which is likely to cause a transmission and reception conflict. For example, when the relay node should receive the information of the remote transmitting node, the relay node itself selects for other services of its own. Sent at this moment. Therefore, it is necessary to optimize the node resource selection process in the relay scenario.
  • the invention provides a resource allocation method, device and device in a relay scenario, which can be used to solve the problem that the relay node may be sent simultaneously with the remote sending node and/or the remote receiving node in the existing resource selection process, which may result in failure to be performed.
  • the problem of relaying data transmission is a problem that the relay node may be sent simultaneously with the remote sending node and/or the remote receiving node in the existing resource selection process, which may result in failure to be performed.
  • a resource allocation method in a relay scenario is provided in the embodiment of the present invention, including:
  • a resource pool for the relay capable node where the resource pool is a sending resource pool capable of forming a time-division relationship with a sending resource pool of all or some other nodes in the system, where the system is configured by a plurality of nodes and the relaying resource pool A communication system consisting of capable nodes.
  • all or part of the nodes in the system are nodes that establish a relay relationship with the relay capable node.
  • the resource pool is configured in one of the following ways or a combination thereof:
  • the relay relationship After the relay relationship is formed, it is configured by a node that forms a relay relationship with the relay node.
  • a resource allocation method in a relay scenario is provided in the embodiment of the present invention, including:
  • a system is a communication system composed of a number of nodes and the relay capable node.
  • nodes in the system are nodes that establish a relay relationship with the relay capable node.
  • the resource pool is configured in one of the following ways or a combination thereof:
  • the relay relationship After the relay relationship is formed, it is configured by a node that forms a relay relationship with the relay node.
  • a computer device including a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor executes the computer program to implement the following method:
  • a resource pool for the relay capable node where the resource pool is a sending resource pool capable of forming a time-division relationship with a sending resource pool of all or some other nodes in the system, where the system is configured by a plurality of nodes and the relaying resource pool A communication system consisting of capable nodes.
  • all or part of the nodes in the system are nodes that establish a relay relationship with the relay capable node.
  • the resource pool is configured in one of the following ways or a combination thereof:
  • the relay relationship After the relay relationship is formed, it is configured by a node that forms a relay relationship with the relay node.
  • a computer readable storage medium storing a computer program for performing a resource allocation method in a relay scenario is provided in the embodiment of the present invention.
  • the embodiment of the present invention provides a resource allocation apparatus in a relay scenario, including:
  • a first determining module configured to determine a node with relay capability
  • a first configuration module configured to configure a resource pool for the relay capable node, where the resource pool is a sending resource pool capable of forming a time-division relationship with a sending resource pool of all or some of the nodes in the system, where the system is A communication system consisting of a number of nodes and the relay capable node.
  • a computer device including a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor implements the following method when executing the computer program:
  • a system is a communication system composed of a number of nodes and the relay capable node.
  • nodes in the system are nodes that establish a relay relationship with the relay capable node.
  • the resource pool is configured in one of the following ways or a combination thereof:
  • the relay relationship After the relay relationship is formed, it is configured by a node that forms a relay relationship with the relay node.
  • a computer readable storage medium storing a computer program for performing a resource allocation method in a relay scenario is provided in the embodiment of the present invention.
  • the embodiment of the present invention provides a resource allocation apparatus in a relay scenario, including:
  • a second determining module configured to determine a node having a relay capability
  • a transmission resource pool, the system is a communication system composed of a plurality of nodes and the relay capable node.
  • a resource allocation method in a relay scenario is provided in the embodiment of the present invention, including:
  • Resource allocation is performed for the relay capable node according to the resource usage of all or part of the nodes in the system, and the system is a communication system composed of a plurality of nodes and the relay capable node.
  • resource allocation is performed for the relay capable node, including:
  • Each node that forms a relay relationship with the relay node is determined to perform resource allocation for data transmission of the relay node according to resource usage of each node forming a relay relationship with the relay node.
  • resource allocation is performed for data transmission of the relay node according to resource usage of each node that forms a relay relationship with the relay node in one of the following manners or a combination thereof:
  • the sending subframe After receiving the warning information, the sending subframe is adjusted, and the early warning information is sent when the other node finds that the sending subframe of the relay node has a relay relationship with the relay node to send data; or
  • the relay node After the relay node sends the maximum delay of a service, if it does not receive the feedback confirmation from the receiving node, the relay node adjusts the transmission subframe.
  • a resource allocation method in a relay scenario is provided in the embodiment of the present invention, including:
  • Resource allocation is performed for other nodes according to resource usage of the relay capable node, and the system is a communication system composed of a plurality of nodes and the relay capable node.
  • resource allocation for other nodes including:
  • the node that is the relay node is determined, and resource allocation is performed according to the resource usage of the relay node.
  • resource allocation is performed according to the resource usage of the relay node in the following manner:
  • the transmission subframe After transmitting the maximum delay of a service, if the information received by the receiving relay node or the feedback acknowledgement is not received, the transmission subframe is adjusted.
  • it further includes:
  • An early warning message is issued when it is determined that there are other nodes transmitting data on the relay node.
  • a computer device including a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor implements the following method when executing the computer program:
  • Resource allocation is performed for the relay capable node according to the resource usage of all or part of the nodes in the system, and the system is a communication system composed of a plurality of nodes and the relay capable node.
  • resource allocation is performed for the relay capable node, including:
  • Each node that forms a relay relationship with the relay node is determined to perform resource allocation for data transmission of the relay node according to resource usage of each node forming a relay relationship with the relay node.
  • resource allocation is performed for data transmission of the relay node according to resource usage of each node that forms a relay relationship with the relay node in one of the following manners or a combination thereof:
  • the sending subframe After receiving the warning information, the sending subframe is adjusted, and the early warning information is sent when the other node finds that the sending subframe of the relay node has a relay relationship with the relay node to send data; or
  • the relay node After the relay node sends the maximum delay of a service, if it does not receive the feedback confirmation from the receiving node, the relay node adjusts the transmission subframe.
  • a computer readable storage medium storing a computer program for performing a resource allocation method in a relay scenario is provided in the embodiment of the present invention.
  • the embodiment of the present invention provides a resource allocation apparatus in a relay scenario, including:
  • a third determining module configured to determine a node having a relay capability
  • a third allocation module configured to perform resource allocation for the relay capable node according to resource usage of all or part of nodes in the system, where the system is composed of a plurality of nodes and the relay capable node system.
  • a computer device including a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor implements the following method when executing the computer program:
  • Resource allocation is performed for other nodes according to resource usage of the relay capable node, and the system is a communication system composed of a plurality of nodes and the relay capable node.
  • resource allocation for other nodes including:
  • the node that is the relay node is determined, and resource allocation is performed according to the resource usage of the relay node.
  • resource allocation is performed according to the resource usage of the relay node in the following manner:
  • the transmission subframe After transmitting the maximum delay of a service, if the information received by the receiving relay node or the feedback acknowledgement is not received, the transmission subframe is adjusted.
  • it further includes:
  • An early warning message is issued when it is determined that there are other nodes transmitting data on the relay node.
  • a computer readable storage medium storing a computer program for performing a resource allocation method in a relay scenario is provided in the embodiment of the present invention.
  • the embodiment of the present invention provides a resource allocation apparatus in a relay scenario, including:
  • a fourth determining module configured to determine a node having a relay capability
  • a fourth allocation module configured to perform resource allocation for other nodes according to resource usage of the relay capable node, where the system is a communication system composed of a plurality of nodes and the relay capable node.
  • the existing resource pool is solved.
  • the relay terminal may be simultaneously transmitted with the remote transmitting terminal and/or the remote receiving terminal under the resource selection process, resulting in a problem that relay data transmission cannot be performed.
  • the relay node and the node forming the relay relationship with the relay node select different time domain resources, thereby solving the possibility that the relay terminal and the remote transmitting terminal in the existing resource selection process And/or the remote receiving terminal transmits at the same time, resulting in the problem that relay data transmission cannot be performed.
  • FIG. 1 is a schematic diagram of a communication mode of centralized control of a network in an LTE system in the background art
  • FIG. 3 is a schematic diagram of UE-to-Network Relay communication in the background art
  • FIG. 4 is a schematic diagram of UE-to-UE relay communication in the background art
  • FIG. 5 is a schematic flowchart of an implementation method of a resource allocation method in a relay scenario according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of an implementation process of a resource allocation method in a relay scenario according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of a UE resource pool in Embodiment 1 of the present invention.
  • FIG. 8 is a schematic diagram of a UE resource pool in Embodiment 2 of the present invention.
  • FIG. 9 is a schematic flowchart of a third implementation manner of a resource allocation method in a relay scenario according to an embodiment of the present invention.
  • FIG. 10 is a schematic flowchart of a fourth implementation process of a resource allocation method in a relay scenario according to an embodiment of the present disclosure
  • FIG. 14 are schematic diagrams showing a virtual function structure of a resource allocation apparatus according to an embodiment of the present invention.
  • FIG. 15 is a schematic diagram showing the functional structure of a resource allocation apparatus according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • NR New Radio
  • the user equipment includes but is not limited to a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a mobile phone (handset). And portable devices, etc., the user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or "cellular"
  • RAN Radio Access Network
  • the user equipment can be a mobile phone (or "cellular"
  • the telephone device, the computer with wireless communication function, etc., the user equipment can also be a mobile device that is portable, pocket-sized, handheld, built-in, or in-vehicle.
  • a base station may refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in TD-SCDMA or WCDMA, or may be an evolved base station (eNodeB or eNB or e- in LTE).
  • NodeB, evolutional Node B), or a base station (gNB) in 5G NR the present invention is not limited.
  • a resource selection scheme in a relay scenario is proposed, which solves the problem that the relay node may be sent simultaneously with the remote sending node and/or the remote receiving node in the existing resource selection process, so that the relay data cannot be performed. Transmission problem.
  • the terminal, the UE, and the like used in the same meaning are the communication terminals that perform data transmission in the UE-to-Nework Relay or the UE-to-UE Relay.
  • a node can be a terminal node or a network node. In order to facilitate the distinction, the embodiments will also refer to them as remote nodes, relay nodes, etc. according to their roles.
  • FIG. 5 is a schematic flowchart of an implementation manner of a resource allocation method in a relay scenario, as shown in the figure, which may include:
  • Step 501 Determine a node having a relay capability.
  • Step 502 Configure a resource pool for the node having the relay capability, where the resource pool is a sending resource pool capable of forming a time-division relationship with a sending resource pool of all or some of the nodes in the system, where the system is composed of a plurality of nodes and the node A communication system composed of nodes with relay capabilities.
  • the resource pool is a sending resource pool capable of forming a time-division relationship with a sending resource pool of all or some of the nodes in the system, where the system is composed of a plurality of nodes and the node A communication system composed of nodes with relay capabilities.
  • all or part of the nodes in the system are nodes that establish a relay relationship with the relay capable node.
  • the resource pool is configured in one of the following ways or a combination thereof:
  • the relay relationship After the relay relationship is formed, it is configured by a node that forms a relay relationship with the relay node.
  • FIG. 6 is a schematic flowchart of a method for implementing resource allocation in a relay scenario, as shown in the following figure, which may include:
  • Step 601 Determine a node having a relay capability.
  • Step 602 Configure a resource pool for a node other than the node capable of relaying in the system, where the resource pool is a sending resource pool capable of forming a time-division relationship with a sending resource pool of the relay capable node in the system.
  • the system is a communication system composed of a plurality of nodes and the relay capable node.
  • nodes in the system are nodes that establish a relay relationship with the relay capable node.
  • the resource pool is configured in one of the following ways or a combination thereof:
  • the relay relationship After the relay relationship is formed, it is configured by a node that forms a relay relationship with the relay node.
  • the node with the relay capability is configured with an independent sending resource pool that is separated from the remote node; and the independent resource pool may be pre-configured by the system, or may be a network or a relay after forming a relay relationship.
  • the node or remote node is dynamically configured.
  • the resource pool after determining the node with the relay capability, the resource pool can be configured for it, waiting to be used after it becomes a relay node; or when it becomes a relay node, the resource pool configuration can be performed. That is to say, in the implementation, the resource pool can be configured according to the practical needs, and can be pre-configured when it is determined that the node has the relay capability, or can be configured after actually becoming the relay node.
  • the system pre-configures the time-separated independent resource pool.
  • FIG. 7 is a schematic diagram of a UE resource pool in Embodiment 1. As shown in the figure, it is assumed that there are UE1, UE2, UE3, UE4, and UE5 in the system, and the system pre-configures an independent resource pool with other UEs for UE4, if UE1 selects When UE4 is used as a relay node to forward its own information to UE2, UE1 and UE2 must be in the receiving state when transmitting, and vice versa.
  • an independent resource pool is dynamically configured for time division.
  • FIG. 8 is a schematic diagram of a UE resource pool in Embodiment 2, as shown in the figure, assuming that UE1, UE2, UE3, UE4, and UE5 are in the system, if UE1 selects to forward its own information to UE2 through UE4 as a relay node, Implemented in one of the following ways or a combination thereof:
  • the network configures an independent resource pool for UE4 with (UE1 and/or UE2) time division.
  • UE1 configures an independent resource pool with UE1 for UE4;
  • UE4 may also send an independent resource pool configured by UE1 for UE4 to UE2, so that UE2 selects a resource pool that is time-divided with UE4;
  • UE4 can also configure an independent resource pool for UE2 with UE4 time division.
  • UE2 configures an independent resource pool with UE2 time division for UE4;
  • UE4 may also send an independent resource pool configured by UE2 for UE4 to UE1, so that UE1 selects a resource pool that is time-divided with UE4;
  • UE4 can also configure an independent resource pool for UE1 with UE4 time division.
  • UE4 configures time-division independent resource pools for itself and (UE1 and/or UE2).
  • UE4 must be in the receiving state when UE1 and UE2 transmit, and vice versa.
  • a computer device a computer readable storage medium, and a resource allocation device in a relay scenario are provided in the embodiment of the present invention.
  • the resource allocation methods are similar, so the implementation of these devices can be referred to the implementation of the method, and the repeated description will not be repeated.
  • the resource allocation apparatus in the relay scenario provided in the embodiment of the present invention includes:
  • a first determining module configured to determine a node with relay capability
  • a first configuration module configured to configure a resource pool for the relay capable node, where the resource pool is a sending resource pool capable of forming a time-division relationship with a sending resource pool of all or some of the nodes in the system, where the system is A communication system consisting of a number of nodes and the relay capable node.
  • a computer device includes a memory, a processor, and a computer program stored on the memory and operative on the processor, the processor executing the computer program to implement the method as follows:
  • a resource pool for the relay capable node where the resource pool is a sending resource pool capable of forming a time-division relationship with a sending resource pool of all or some other nodes in the system, where the system is configured by a plurality of nodes and the relaying resource pool A communication system consisting of capable nodes.
  • all or part of the nodes in the system are nodes that establish a relay relationship with the relay capable node.
  • the resource pool is configured in one of the following ways or a combination thereof:
  • the relay relationship After the relay relationship is formed, it is configured by a node that forms a relay relationship with the relay node.
  • a computer readable storage medium storing a computer program for performing a resource allocation method in the relay scenario described above. For details, reference may be made to the implementation of the above computer device.
  • the embodiment of the present invention further provides a resource allocation apparatus in a relay scenario, including:
  • a second determining module configured to determine a node having a relay capability
  • a transmission resource pool, the system is a communication system composed of a plurality of nodes and the relay capable node.
  • a computer device includes a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the computer program to implement the following method:
  • a system is a communication system composed of a number of nodes and the relay capable node.
  • nodes in the system are nodes that establish a relay relationship with the relay capable node.
  • the resource pool is configured in one of the following ways or a combination thereof:
  • the relay relationship After the relay relationship is formed, it is configured by a node that forms a relay relationship with the relay node.
  • a computer readable storage medium storing a computer program for performing a resource allocation method in the relay scenario described above. For details, reference may be made to the implementation of the above computer device.
  • FIG. 9 is a schematic flowchart of a third implementation process of a resource allocation method in a relay scenario, as shown in the figure, which may include:
  • Step 901 Determine a node having a relay capability.
  • Step 902 Perform resource allocation for the relay capable node according to resource usage of all or part of nodes in the system, where the system is a communication system composed of a plurality of nodes and the relay capable node.
  • resource allocation is performed for the relay capable node, including:
  • Each node that forms a relay relationship with the relay node is determined to perform resource allocation for data transmission of the relay node according to resource usage of each node forming a relay relationship with the relay node.
  • resource allocation is performed for data transmission of the relay node according to resource usage of each node that forms a relay relationship with the relay node in one of the following manners or a combination thereof:
  • the sending subframe After receiving the warning information, the sending subframe is adjusted, and the early warning information is sent when the other node finds that the sending subframe of the relay node has a relay relationship with the relay node to send data; or
  • the relay node After the relay node sends the maximum delay of a service, if it does not receive the feedback confirmation from the receiving node, the relay node adjusts the transmission subframe.
  • FIG. 10 is a schematic flowchart of a fourth implementation process of a resource allocation method in a relay scenario, as shown in the figure, which may include:
  • Step 1001 Determine a node having a relay capability
  • Step 1002 Perform resource allocation for other nodes according to resource usage of the relay capable node, where the system is a communication system composed of a plurality of nodes and the relay capable node.
  • resource allocation for other nodes including:
  • the node that is the relay node is determined, and resource allocation is performed according to the resource usage of the relay node.
  • resource allocation is performed according to the resource usage of the relay node in the following manner:
  • the transmission subframe After transmitting the maximum delay of a service, if the information received by the receiving relay node or the feedback acknowledgement is not received, the transmission subframe is adjusted.
  • it may further include:
  • An early warning message is issued when it is determined that there are other nodes transmitting data on the relay node.
  • the method further includes:
  • the subframe T is processed as a skip subframe.
  • the skip subframe means that it has been sent on the subframe, so it cannot be received on the subframe, so it is impossible to know whether other nodes on the subframe are also transmitting and what kind of reservation period is used for transmission. Therefore, in the subsequent avoidance of the subframe, it can only be assumed that there are many nodes to make reservations in all the reservation periods allowed by the system, and this principle is avoided.
  • the remote node and/or other nodes except the remote node and the relay node find that there are other nodes on the transmitting subframe of the relay node, and then send out early warning information that the subframe may collide.
  • the relay node adjusts the sending subframe after receiving the warning information. And/or, after receiving the warning information, the remote node adjusts the transmission subframe if it is also sent on the subframe.
  • the remote transmitting node does not receive the information or feedback confirmation forwarded by the relay node after the maximum delay of one service after transmitting, and then adjusts the transmitting subframe by itself;
  • the relay node does not receive the feedback acknowledgement of the remote receiving node after the maximum delay of one service after transmitting itself, and adjusts the transmitting subframe by itself.
  • the entity that selects resources for the remote node and/or the relay node may be a network node, a remote node, a relay node, or a third-party device (terminal device or network device) with resource allocation capability. It should be noted that, in order to make the object clearer, the process of selecting resources for the remote node and the relay node is separately described, but in the embodiment of the present invention, the situation of selecting resources for the remote node and the relay node is also protected. That is, the subject of the resource is selected and the time-division resources are selected for the remote node and the relay node.
  • the remote node and the relay node avoid each other's transmission subframes when selecting resources.
  • UE1 chooses to forward its own information to UE2 through UE4 as a relay node, UE1 (or UE2) has received the SA of UE4 if it has received the resource (Scheduling Assignment).
  • scheduling allocation indicating that the UE Y occupies the resource Y on the subframe X in the period of P, and if the service period of the UE1 (or UE2) is p, the UE1 (or UE2) cannot select any resource on the subframe x, if X, X+P, ..., X+m*P and x, x+p, ..., x+n*p have the same value between the two column numbers, where m and n are positive integers. Conversely, UE4 is the same when selecting resources.
  • the remote node and the relay node reselect the resource when it finds that it may be sent on the same subframe as the other party.
  • the UE3 transmits more than one UE on the subframe T according to the received SA, and then sends the sub-frame.
  • An early warning of a collision may occur on frame T.
  • the UE4 determines that UE1 is transmitted on the subframe T at the same time, and the UE4 decides to Select to send resources;
  • the UE4 decides to reselect the transmission resource
  • the UE1 determines that the UE4 is transmitted on the subframe T at the same time, and the UE1 decides to Select to send resources;
  • the UE1 decides to reselect the transmission resource
  • the remote node and the relay node reselect the resource when it finds that it may be sent on the same subframe as the other party.
  • the UE1/UE3/UE5 is a certain UE, and it is assumed that the UE3 transmits more than one UE on the subframe T according to the received SA, and then the child is sent. An early warning of a collision may occur on frame T.
  • the UE4 determines that UE3 is transmitted on the subframe T at the same time, and the UE4 does not process. ;
  • the UE4 decides to reselect the transmission resource
  • the UE1 on the basis of the embodiment 3, 4 or 5, further, if the UE1 does not receive the information or feedback acknowledgement forwarded by the UE4 after the maximum delay of the service after the UE is sent, the UE1 considers that it may be the same as the UE4. If the subframe is sent, UE1 reselects the sending resource;
  • the UE4 does not receive the feedback confirmation of the UE2 after the maximum delay of the service after transmitting the UE, and the UE4 considers that it may be in the same subframe as the UE2. If it is sent, UE4 reselects the transmission resource.
  • the subframe T may also be processed as a skip subframe.
  • a computer device a computer readable storage medium, and a resource allocation device in a relay scenario are provided in the embodiment of the present invention.
  • the resource allocation methods are similar, so the implementation of these devices can be referred to the implementation of the method, and the repeated description will not be repeated.
  • the resource allocation apparatus in the relay scenario provided in the embodiment of the present invention includes:
  • a third determining module configured to determine a node having a relay capability
  • a third allocation module configured to perform resource allocation for the relay capable node according to resource usage of all or part of nodes in the system, where the system is composed of a plurality of nodes and the relay capable node system.
  • a computer device includes a memory, a processor, and a computer program stored on the memory and operative on the processor, the processor executing the computer program to implement the method as follows:
  • Resource allocation is performed for the relay capable node according to the resource usage of all or part of the nodes in the system, and the system is a communication system composed of a plurality of nodes and the relay capable node.
  • resource allocation is performed for the relay capable node, including:
  • Each node that forms a relay relationship with the relay node is determined to perform resource allocation for data transmission of the relay node based on the resource usage of each node forming a relay relationship with the relay node.
  • resource allocation is performed for data transmission of the relay node according to resource usage of each node that forms a relay relationship with the relay node in one of the following manners or a combination thereof:
  • the sending subframe After receiving the warning information, the sending subframe is adjusted, and the early warning information is sent when the other node finds that the sending subframe of the relay node has a relay relationship with the relay node to send data; or
  • the relay node After the relay node sends the maximum delay of a service, if it does not receive the feedback confirmation from the receiving node, the relay node adjusts the transmission subframe.
  • a computer readable storage medium storing a computer program for performing a resource allocation method in the relay scenario described above. For details, reference may be made to the implementation of the above computer device.
  • the embodiment of the present invention further provides a resource allocation apparatus in a relay scenario, including:
  • a fourth determining module configured to determine a node having a relay capability
  • a fourth allocation module configured to perform resource allocation for other nodes according to resource usage of the relay capable node, where the system is a communication system composed of a plurality of nodes and the relay capable node.
  • a computer device includes a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the computer program to implement the following method:
  • Resource allocation is performed for other nodes according to resource usage of the relay capable node, and the system is a communication system composed of a plurality of nodes and the relay capable node.
  • resource allocation for other nodes including:
  • the node that is the relay node is determined, and resource allocation is performed according to the resource usage of the relay node.
  • resource allocation is performed according to the resource usage of the relay node in the following manner:
  • the transmission subframe After transmitting the maximum delay of a service, if the information received by the receiving relay node or the feedback acknowledgement is not received, the transmission subframe is adjusted.
  • it further includes:
  • An early warning message is issued when it is determined that there are other nodes transmitting data on the relay node.
  • a computer readable storage medium storing a computer program for performing a resource allocation method in the relay scenario described above. For details, reference may be made to the implementation of the above computer device.
  • a resource selection scheme in a relay scenario is proposed, which solves the problem that the relay terminal may be simultaneously transmitted with the remote transmitting terminal and/or the remote receiving terminal in the existing resource selection process, resulting in The problem of relaying data transmission is not possible.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé, un appareil et un dispositif d'attribution de ressources dans un scénario de relais. Le procédé consiste : à déterminer un nœud ayant une capacité de relais ; à configurer un groupe de ressources destiné au nœud ayant une capacité de relais ; et à configurer des groupes de ressources destinés à d'autres nœuds dans un système différents du nœud ayant une capacité de relais, le groupe de ressources étant un groupe de ressources d'envoi pouvant former une relation par répartition dans le temps avec les groupes de ressources d'envoi de tout ou partie d'autres nœuds dans le système, et le système étant un système de communication constitué d'une pluralité de nœuds et le nœud ayant une capacité de relais. Selon la présente invention, en raison d'un nœud de relais, un groupe de ressources d'envoi par répartition dans le temps conçu pour le nœud de relais est utilisé, le problème d'incapacité à effectuer une transmission de données de relais en raison du fait qu'un terminal de relais peut effectuer un envoi en même temps qu'un terminal d'envoi à distance et/ou un terminal de réception à distance dans des procédures de sélection de ressource existantes est résolu.
PCT/CN2018/123606 2018-02-12 2018-12-25 Procédé, appareil et dispositif d'attribution de ressources dans un scénario de relais WO2019153924A1 (fr)

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