WO2020034848A1 - 一种被用于无线通信节点中的方法和装置 - Google Patents
一种被用于无线通信节点中的方法和装置 Download PDFInfo
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- WO2020034848A1 WO2020034848A1 PCT/CN2019/098841 CN2019098841W WO2020034848A1 WO 2020034848 A1 WO2020034848 A1 WO 2020034848A1 CN 2019098841 W CN2019098841 W CN 2019098841W WO 2020034848 A1 WO2020034848 A1 WO 2020034848A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0005—Synchronisation arrangements synchronizing of arrival of multiple uplinks
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/82—Miscellaneous aspects
- H04L47/822—Collecting or measuring resource availability data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
Definitions
- This application relates to a transmission method and device in a wireless communication system, and in particular, to a communication method and device performed on a side link in wireless communication.
- the 3rd Generation Partnership Project (3GPP) Radio Access Network (RAN) # 72 plenary session decided on the new air interface technology (NR , New Radio (or Fifth Generation, 5G) to conduct research, passed the NR's WI (Work Item) at the 3GPP RAN # 75 plenary meeting, and began to standardize the NR.
- 3GPP 3rd Generation Partnership Project
- NR New Radio
- 5G Fifth Generation
- V2X Vehicle-to-Everything
- 3GPP has also started the work of standard formulation and research under the NR framework.
- 3GPP has completed the requirements for 5G V2X services, and has written them into the standard TS22.886.
- 3GPP defines 4 major use case groups for 5G V2X services, including: Vehicles Placing, Supporting Extended Sensors, Semi / Fully Driving (Advanced Driving) and Remote Driving ( Remote Driving).
- RAN # 80 plenary meeting research on NR-based V2X technology has been initiated.
- the NR V2X system In order to meet the new business requirements, compared with the LTE V2X system, the NR V2X system has higher throughput, higher reliability, lower latency, longer transmission distance, more accurate positioning, more variability in packet size and transmission cycle. And key technical features that coexist more effectively with existing 3GPP and non-3GPP technologies.
- the working mode of the LTE V2X system is limited to broadcast transmission. According to the consensus reached at the 3GPP RAN # 80 plenary meeting, NR V2X will study technical solutions that support unicast, multicast, and broadcast multiple working modes; and define the link between terminals and base stations in V2X Uu link, and the link between the terminal and the terminal is a PC-5 link.
- the UE In traditional unicast transmission, in order to ensure that the uplink reception from multiple different UEs (User Equipment) received at the base station is aligned in the time domain, the UE needs to receive the uplink transmission time according to itself when transmitting.
- the starting time of the downlink sub-frame is adjusted forward by a TA (Timing Advance), and the TA is estimated by the base station and sent to the UE.
- TA Timing Advance
- the wireless signals sent by the user equipment through the Sidelink are broadcast, and no wireless signals are sent to a specific user equipment.
- the working mode of broadcast transmission is very low in resource utilization efficiency and reliable transmission cannot be guaranteed; therefore, D2D and V2X in the NR background need to consider unicast transmission to improve the spectrum Efficiency and transmission performance, and when D2D and V2X unicast transmission, the above timing issues also need to be reconsidered.
- this application discloses a solution to support unicast transmission. It should be noted that, in the case of no conflict, the embodiments in the user equipment and the features in the embodiments can be applied to a base station, and vice versa. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other. Further, although the original intention of this application is directed to a unicast-based transmission mechanism, this application can also be used for broadcast and multicast transmission. Furthermore, although the original intention of this application is for single-carrier communication, this application can also be used for multi-carrier communication.
- the transmission from the first node to the second node in this application is defined as an uplink PC-5 link
- the transmission from the second node to the first node in this application is defined as a downlink PC-5 link.
- the present application discloses a method used in a first node of wireless communication, which is characterized by including:
- first information and second information Receiving first information and second information through an air interface, the first information indicating a first time offset value, and the second information indicating a first time domain resource with respect to a first time;
- the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time is associated with A time domain resource for receiving the first information.
- the above method has the advantage that the first time domain resource is a time domain resource relative to the first time, and the first time unit associated with the first time is the first time unit.
- the reference timing of the first node itself such as the uplink timing of the serving base station of the first node in question, prevents the first node from adjusting the uplink transmission on the Uu-like interface in advance, simplifying the communication between the two terminals in V2X communication. Operation.
- another advantage of the foregoing method is that, by using the first time offset value, the sender of the first information offsets the uplink transmission of the first node within a given time range, And obtain a receiving timing from the first node by using a wireless signal (for example, the first wireless signal in the present application) sent by the first node, and then detect a signal from all nodes in a certain time range corresponding to a given time range. The transmission of the first node is described.
- a wireless signal for example, the first wireless signal in the present application
- another advantage of the foregoing method is that the foregoing manner of determining the first time domain resource according to the reference timing of the first node and the first time offset value does not need to change the The uplink timing between the first node and the serving base station also does not require TA estimation and interaction between the V2X links for the V2X link, simplifying V2X transmission.
- the first time domain resource is an area where the sender of the first information expects to receive a wireless signal from the first node, and the The sender does not force the first node to send a wireless signal in the corresponding area, thereby avoiding the impact on the communication between the first node and the base station.
- the above method is characterized by comprising:
- the first wireless signal is used to determine synchronization timing at a time unit level, and the synchronization timing at the first time unit is consistent with the synchronization timing at the time unit level.
- the above method has the advantage that the first wireless signal is used by the sender of the first information to determine a first time offset value, and is used by the sender of the first information to determine the Timing of the downlink PC-5 link of the first node; further ensuring that the sender of the first information ensures that the first node sends a detection in the first time domain resource by using the first time offset value Wireless signal.
- the above method is characterized by comprising:
- the time domain resource used to receive the second wireless signal is associated with the time domain resource used to receive the first information, and the second information is used to determine that the third wireless signal is occupied. Time domain resources, the third wireless signal indicates whether the second wireless signal is correctly decoded.
- the above method has the advantage that the third wireless signal is HARQ-ACK on the PC-5 link to improve the performance of the PC-5 link.
- another advantage of the above method is that the receiving of the first node refers to the downlink signal of the PC-5 link from the sender of the first information, and the sending of the first node only The first time offset value is added on the premise of referring to the downlink timing of the PC-5 link, and the first node is not required to adjust the TA, which simplifies the operation of the first node; further, when the first node When the sender of the first information belongs to a different base station and refers to a different synchronization source, the above method ensures that all transmissions refer to the reception timing, and no TA operation is performed on the PC-5 link to avoid Uu links Interference.
- the above method is characterized by comprising:
- the second information is used to determine a time domain resource occupied by the fourth wireless signal, and the time domain resource occupied by the fourth wireless signal is associated with the first time domain resource.
- the above method has the advantage that all the PC-5 link uplink transmissions of the first node can use the scheme in this application, and is not limited to the HARQ-ACK of the PC-5 link.
- the above method is characterized by comprising:
- the first signaling includes configuration information of the second wireless signal, and the configuration information of the second wireless signal includes the time domain resource for receiving the second wireless signal; or
- the first signaling includes configuration information of the fourth wireless signal, and the configuration information of the fourth wireless signal includes the time domain resource for sending the fourth wireless signal.
- the above method has the advantage that the first time offset value included in the first information and the second information are dynamically adjusted, thereby improving the accuracy of the first time offset value. And scheduling flexibility on PC-5 links.
- the above method is characterized in that the first time offset value is related to a subcarrier interval used by the second wireless signal, or the first time offset value is related to the first The subcarrier spacing used by the wireless signal occupied by the information is related.
- the advantage of the above method is that the first time offset value is related to the subcarrier interval used by the wireless signal on the PC-5 link, so as to improve the reliability of the method in the present application and to different subcarriers. Carrier interval adaptability.
- the present application discloses a method used in a second node for wireless communication, which is characterized by including:
- first information indicating a first time offset value
- second information indicating a first time domain resource relative to the first time
- the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time is associated with A time domain resource for receiving the first information.
- the above method is characterized by comprising:
- the first wireless signal is used to determine synchronization timing at a time unit level, and the synchronization timing at the first time unit is consistent with the synchronization timing at the time unit level.
- the above method is characterized by comprising:
- the time domain resource used to receive the second wireless signal is associated with the time domain resource used to receive the first information, and the second information is used to determine that the third wireless signal is occupied. Time domain resources, the third wireless signal indicates whether the second wireless signal is correctly decoded.
- the above method is characterized by comprising:
- the second information is used to determine a time domain resource occupied by the fourth wireless signal, and the time domain resource occupied by the fourth wireless signal is associated with the first time domain resource.
- the above method is characterized by comprising:
- the first signaling includes configuration information of the second wireless signal, and the configuration information of the second wireless signal includes the time domain resource for receiving the second wireless signal; or
- the first signaling includes configuration information of the fourth wireless signal, and the configuration information of the fourth wireless signal includes the time domain resource for sending the fourth wireless signal.
- the above method is characterized in that the first time offset value is related to a subcarrier interval used by the second wireless signal, or the first time offset value is related to the first The subcarrier spacing used by the wireless signal occupied by the information is related.
- the present application discloses a first node used for wireless communication, which is characterized by including:
- a first transceiver receiving first information and second information through an air interface, the first information indicating a first time offset value, and the second information indicating a first time domain resource with respect to a first time;
- the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time is associated with A time domain resource for receiving the first information.
- the present application discloses a second node used for wireless communication, which is characterized by including:
- the second transceiver sends first information and second information through an air interface, the first information indicates a first time offset value, and the second information indicates a first time domain resource with respect to the first time;
- the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time is associated with A time domain resource for receiving the first information.
- this application has the following advantages:
- the wireless transmission of the first node refers to the timing of the first node itself, such as the serving base station of the first node To prevent the first node from adjusting the uplink transmission on the Uu interface in advance to simplify the operation between the two terminals in V2X communication.
- the sender of the first information offsets the uplink transmission of the first node within a given time range, and obtains from the first wireless signal through the first wireless signal
- the receiving timing of a node further detects the wireless transmission from the first node in a certain time range corresponding to a given time range.
- the receiving of the first node refers to the downlink signal of the PC-5 link from the sender of the first information
- the sending of the first node only refers to the downlink timing of the reference PC-5 link.
- the first time offset value is added under the premise, and the uplink sending timing of the first node is not adjusted, which simplifies the operation of the first node; further, when the first node and the first information
- the above method ensures that all transmissions are referenced to the uplink timing of the self-serving base station, and no TA operation is performed on the PC-5 link to avoid interference with the Uu link .
- the first time domain resource is an area where the sender of the first information expects to receive a wireless signal from the first node, and the sender of the first information does not force the first node to be certain
- the wireless signal is sent in the corresponding area, thereby avoiding the influence on the communication between the first node and the serving base station.
- FIG. 1 shows a flowchart of first information and second information according to an embodiment of the present application
- FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application
- FIG. 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application
- FIG. 4 shows a schematic diagram of a first communication node and a second communication node according to an embodiment of the present application
- FIG. 5 shows a flowchart of a first wireless signal according to an embodiment of the present application
- FIG. 6 shows a flowchart of a fourth wireless signal according to an embodiment of the present application.
- FIG. 7 illustrates a timing relationship diagram of a first node and a second node designed by using a conventional timing advance method according to an embodiment of the present application
- FIG. 8 shows a timing relationship diagram of a first node and a second node designed by using a first time offset value according to an embodiment of the present application
- FIG. 9 shows a timing relationship diagram of a first node and a second node designed by using a first time offset value according to another embodiment of the present application.
- FIG. 10 shows a schematic diagram of a first node determining a first time offset value through a first wireless signal according to an embodiment of the present application
- FIG. 11 is a schematic diagram of a first time-frequency resource according to an embodiment of the present application.
- FIG. 12 is a schematic diagram of a first time domain resource according to an embodiment of the present application.
- FIG. 13 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application
- FIG. 14 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application
- FIG. 15 shows a structural block diagram of a processing device used in a first node according to another embodiment of the present application.
- FIG. 16 shows a structural block diagram of a processing device used in a second node according to another embodiment of the present application.
- Embodiment 1 illustrates a flowchart of the first information and the second information, as shown in FIG. 1.
- each block represents a step.
- the first node in the present application receives first information and second information through an air interface in step 101, the first information indicates a first time offset value, and the second information is relative to The first time indicates a first time domain resource; the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, so The first reception time is associated with a time domain resource for receiving the first information.
- the first receiving time is a cut-off time of the multi-carrier symbol occupied by the first information at the first node side (Side).
- the first receiving time is a start time of the multi-carrier symbol occupied by the first information at the first node side.
- the first information and the second information are two fields in the first signaling in the present application, and the first receiving time is when the first node receives the first information. A signaling deadline.
- the first information and the second information are two fields in the first signaling in the present application, and the first receiving time is when the first node receives the first information.
- the first information and the second information are two fields in the first signaling, and the first receiving time is the latest time when the first node receives the first signaling.
- the first receiving time is the latest time when the first node receives the first signaling.
- the first information and the second information are two fields in the first signaling, and the first receiving time is the earliest time for the first node to receive the first signaling.
- One multi-carrier symbol is the first information and the second information.
- the multi-carrier symbol described in this application is a SC-FDMA (Single-Carrier Frequency Division Multiple Access) symbol.
- SC-FDMA Single-Carrier Frequency Division Multiple Access
- the multi-carrier symbol described in this application is a Filter Bank Multi-Carrier (FBMC) symbol.
- FBMC Filter Bank Multi-Carrier
- the multi-carrier symbol described in this application is an OFDM symbol including CP (Cyclic Prefix, Cyclic Prefix).
- the multi-carrier symbol described in this application is a DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Multiplexing, Dispersive Fourier Transform Spreading Orthogonal Frequency Division Multiplexing) symbol including CP.
- DFT-s-OFDM Discrete Fourier Transform Spreading Orthogonal Frequency Multiplexing, Dispersive Fourier Transform Spreading Orthogonal Frequency Division Multiplexing
- the multi-carrier symbol described in this application is a DFT-S-FDMA (Discrete, Fourier, Transform, Spreading, Frequency, Multiple Access, Discrete Fourier Transform Spread Spectrum Frequency Division Multiple Access) symbol.
- DFT-S-FDMA Discrete, Fourier, Transform, Spreading, Frequency, Multiple Access, Discrete Fourier Transform Spread Spectrum Frequency Division Multiple Access
- the first time is the start of the first time unit.
- the first time is the end of the first time unit.
- the first time is the start of the Q1-th time unit after the first time unit, and Q1 is a positive integer.
- the first time is the end of the Q1-th time unit after the first time unit, and Q1 is a positive integer.
- the Q1-th time unit is a slot (Slot), or the Q1-th time unit is a subframe.
- the second information indicating the first time domain resource with respect to the first time means that the first time is the start of the first time unit, and the first time domain resource is occupied
- the time unit of is the Q2th time unit after the first time unit, the second information indicates the Q2, and the Q2 is a positive integer.
- the indication of the first time domain resource with respect to the first time by the second information refers to: the first time is a deadline of the first time unit, and the first time domain resource is occupied
- the time unit of is the Q2th time unit after the first time unit
- the second information indicates the Q2
- the Q2 is a positive integer.
- the second information indicating the first time domain resource with respect to the first time means that the first time is the start of the Q1-th time unit after the first time unit, the The time unit occupied by the first time domain resource is the Q3 time unit after the Q1 time unit, the second information indicates the Q3, and the Q3 is a positive integer.
- the indication of the second time domain resource with respect to the first time by the second information refers to: the first time is an expiration of a Q1 time unit after the first time unit, and The time unit occupied by the first time domain resource is the Q3 time unit after the Q1 time unit, the second information indicates the Q3, and the Q3 is a positive integer.
- the Q1 in the present application is fixed.
- the Q1 in this application is configurable.
- the Q1 in this application is indicated by physical layer signaling.
- the Q1 in the present application is indicated by the second information.
- the first time offset value does not exceed the duration of one time unit.
- the first time offset value corresponds to a positive integer number of multi-carrier symbols.
- the first time offset value corresponds to a duration of a positive integer number of multi-carrier symbols.
- the first time unit in the present application is a time slot, or the first time unit is a subframe.
- a unit of the first time offset value is a duration of one multi-carrier symbol.
- the first node is a terminal.
- the first node is a user equipment.
- the first node is a vehicle.
- the time unit in this application is a subframe.
- the time unit in this application is a time slot.
- the air interface in this application corresponds to the interface between UE201 and UE241 in Embodiment 2.
- the air interface in this application is carried through a wireless channel.
- the air interface in this application is a wireless interface corresponding to a PC-5 link.
- the interval between the first time unit and the time unit occupied by the first time domain resource is a positive integer number of time units.
- the first time unit is continuous with the time unit occupied by the first time domain resource, and the first time unit is a time unit subsequent to the time unit occupied by the first time domain resource .
- the first receiving moment is located in a time unit on the first node side.
- the first receiving time does not belong to the start time of any time unit on the first node side, and the first receiving time does not belong to the time cutoff of any time unit on the first node side .
- Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in FIG. 2.
- FIG. 2 illustrates a network architecture 200 of a 5G NR, Long-Term Evolution (LTE) and LTE-A (Long-Term Evolution Advanced) system.
- the 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System, evolved packet system) 200, or some other suitable term.
- EPS 200 may include one or more UE (User Equipment) 201, a UE 241 that performs secondary link communication with UE 201, NG-RAN (Next Generation Radio Access Network) 202, and EPC (Evolved Packet Core). Core) / 5G-CN (5G-Core Network, 5G Core Network) 210, HSS (Home Subscriber Server, Home Subscriber Server) 220 and Internet Service 230.
- UE User Equipment
- NG-RAN Next Generation Radio Access Network
- EPC Evolved Packet Core
- EPS can be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, EPS provides packet switching services, however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit switched services or other cellular networks.
- NG-RAN includes NR Node B (gNB) 203 and other gNB 204.
- gNB203 provides user and control plane protocol termination towards UE201.
- the gNB203 may be connected to other gNB204 via an Xn interface (eg, backhaul).
- the gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmitting and receiving node), or some other suitable term.
- gNB203 provides UE201 with access point to EPC / 5G-CN 210.
- Examples of UE201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, non-ground base station communications, satellite mobile communications, global positioning systems, multimedia devices , Video device, digital audio player (e.g., MP3 player), camera, game console, drone, aircraft, narrowband IoT device, machine type communication device, land vehicle, car, wearable device, or any Other similar functional devices.
- SIP Session Initiation Protocol
- PDAs personal digital assistants
- satellite radios non-ground base station communications
- satellite mobile communications global positioning systems
- multimedia devices Video device
- digital audio player e.g., MP3 player
- camera game console
- drone narrowband IoT device
- machine type communication device land vehicle, car, wearable device, or any Other similar functional devices.
- UE201 may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, Mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other suitable term.
- gNB203 is connected to EPC / 5G-CN 210 via S1 / NG interface.
- EPC / 5G-CN 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / UPF (User Plane Function) 211, other MME / AMF / UPF 214, S-GW (Service Gateway), 212 and P-GW (Packet Data Network Gateway) 213.
- MME Mobility Management Entity
- AMF Authentication Management Field
- UPF User Plane Function
- S-GW Service Gateway
- P-GW Packet Data Network Gateway
- MME / AMF / UPF211 is a control node that processes signaling between UE201 and EPC / 5G-CN210.
- MME / AMF / UPF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW213.
- P-GW213 provides UE IP address allocation and other functions.
- P-GW213 is connected to Internet service 230.
- the Internet service 230 includes an operator's corresponding Internet protocol service. Specifically, the Internet service 230 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem, IP Multimedia Subsystem), and a packet switching streaming service.
- IMS IP Multimedia Subsystem
- IP Multimedia Subsystem IP Multimedia Subsystem
- the UE 201 corresponds to the first node in this application.
- the UE 241 corresponds to the second node in this application.
- the first node in the present application is the UE 201
- the second node in the present application is a terminal covered by the gNB203.
- the first node in this application is the UE201
- the second node in this application is a terminal outside the coverage of the gNB203.
- both the first node and the second node in this application are served by the gNB203.
- the UE 201 supports transmission on multiple CCs at the same time.
- the UE 201 supports transmission on multiple BWP (Bandwidth Part) simultaneously.
- the UE 241 supports transmission on multiple CCs at the same time.
- the UE 241 supports transmission on multiple BWPs simultaneously.
- the gNB203 supports transmission on multiple CCs at the same time.
- the gNB203 supports transmission on multiple BWPs simultaneously.
- the wireless link between the UE 201 and the UE 241 corresponds to the PC-5 link in this application.
- the wireless link from the UE 201 to the UE 241 corresponds to the PC-5 uplink in this application.
- the wireless link from the UE 241 to the UE 201 corresponds to the PC-5 downlink in this application.
- the wireless link between the UE 201 and the NR Node B corresponds to a Uu link in this application.
- Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in FIG. 3.
- FIG 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and control plane.
- Figure 3 shows the radio protocol architecture for the user equipment (UE) and base station equipment (gNB or eNB) in three layers: layer 1.
- Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions.
- the L1 layer will be referred to herein as PHY301.
- Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between UE and gNB through PHY301.
- the L2 layer 305 includes a MAC (Medium Access Control, Media Access Control) sublayer 302, a RLC (Radio Link Control, Radio Link Control Protocol) sublayer 303, and a PDCP (Packet Data Convergence Protocol) packet data (Aggregation protocol) sublayers 304, which terminate at the gNB on the network side.
- the UE may have several upper layers above the L2 layer 305, including the network layer (e.g., IP layer) terminating at the P-GW on the network side and the other end (e.g., Remote UE, server, etc.).
- the PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels.
- the PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, provides security by encrypting data packets, and provides handover support for UEs between gNBs.
- the RLC sublayer 303 provides segmentation and reassembly of the upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception caused by HARQ (Hybrid Automatic Repeat Request).
- HARQ Hybrid Automatic Repeat Request
- the MAC sublayer 302 provides multiplexing between logical and transport channels.
- the MAC sublayer 302 is also responsible for allocating various radio resources (eg, resource blocks) in a cell between UEs.
- the MAC sublayer 302 is also responsible for HARQ operations.
- the radio protocol architecture for the UE and gNB is substantially the same for the physical layer 301 and the L2 layer 305, but there is no header compression function for the control plane.
- the control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer).
- the RRC sublayer 306 is responsible for obtaining radio resources (ie, radio bearers) and using RRC signaling between the gNB and the UE to configure the lower layers.
- the wireless protocol architecture in FIG. 3 is applicable to the first node in this application.
- the wireless protocol architecture in FIG. 3 is applicable to the second node in this application.
- the wireless protocol architecture in FIG. 3 is applicable to the base station in this application.
- the first information in this application is generated in the PHY301.
- the second information in this application is generated in the PHY301.
- the first signaling in this application is generated from the PHY301.
- the first wireless signal in the present application is generated in the PHY301.
- the second wireless signal in the present application is generated in the MAC sublayer 302.
- the third wireless signal in the present application is generated in the MAC sublayer 302.
- the fourth wireless signal in the present application is generated in the MAC sublayer 302.
- Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in FIG. 4.
- FIG. 4 is a block diagram of a first communication device 410 and a second communication device 450 that communicate with each other in an access network.
- the first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, and a transmitter / receiver 454 And antenna 452.
- the second communication device 410 includes a controller / processor 475, a memory 476, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting processor 471, a transmitter / receiver 418, and an antenna 420.
- an upper layer data packet from a core network is provided to the controller / processor 475.
- the controller / processor 475 implements the functionality of the L2 layer.
- the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiple paths between logic and transport channels. Multiplexing, and radio resource allocation to the first communication device 450 based on various priority metrics.
- the controller / processor 475 is also responsible for retransmission of lost packets and signaling to the second communication device 450.
- the transmission processor 416 and the multi-antenna transmission processor 471 implement various signal processing functions for the L1 layer (ie, the physical layer).
- the transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the first communication device 450, and based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift Key clustering (QPSK), M phase shift keying (M-PSK), M quadrature amplitude modulation (M-QAM)).
- FEC forward error correction
- BPSK binary phase shift keying
- QPSK quadrature phase shift Key clustering
- M-PSK M phase shift keying
- M-QAM M quadrature amplitude modulation
- the multi-antenna transmission processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more spatial streams.
- the transmit processor 416 maps each spatial stream to subcarriers, multiplexes with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate A physical channel carrying a multi-carrier symbol stream in the time domain.
- the multi-antenna transmission processor 471 then performs a transmission analog precoding / beamforming operation on the time-domain multi-carrier symbol stream.
- Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmission processor 471 into a radio frequency stream, and then provides it to a different antenna 420.
- each receiver 454 receives a signal through its corresponding antenna 452.
- Each receiver 454 recovers the information modulated onto the RF carrier, and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456.
- the receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer.
- the multi-antenna receive processor 458 performs a receive analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454.
- the receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after receiving the analog precoding / beamforming operation from the time domain to the frequency domain.
- FFT fast Fourier transform
- the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, where the reference signal will be used for channel estimation.
- the first communication device 450 is any spatial stream destined for.
- the symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated.
- the receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel.
- the upper layer data and control signals are then provided to the controller / processor 459.
- the controller / processor 459 implements the functions of the L2 layer.
- the controller / processor 459 may be associated with a memory 460 that stores program code and data.
- the memory 460 may be referred to as a computer-readable medium.
- the controller / processor 459 provides demultiplexing between transmission and logical channels, packet reassembly, decryption, and header decompression. Control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals can also be provided to L3 for L3 processing.
- a data source 467 is used to provide an upper layer data packet to the controller / processor 459.
- the data source 467 represents all protocol layers above the L2 layer.
- the controller / processor 459 implements a header based on the wireless resource allocation Compression, encryption, packet segmentation and reordering, and multiplexing between logic and transport channels implement L2 layer functions for the user and control planes.
- the controller / processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410.
- the transmit processor 468 performs modulation mapping and channel encoding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, and then transmits
- the processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, and after the analog precoding / beam forming operation is performed in the multi-antenna transmission processor 457, it is provided to different antennas 452 via the transmitter 454.
- Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmission processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.
- the function at the second communication device 410 is similar to that at the second communication device 410 to the first communication device 450
- Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna receiving processor 472 and the receiving processor 470.
- the receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the functions of the L1 layer.
- the controller / processor 475 implements L2 layer functions.
- the controller / processor 475 may be associated with a memory 476 that stores program code and data.
- the memory 476 may be referred to as a computer-readable medium.
- the controller / processor 475 In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides demultiplexing between transmission and logical channels, packet reassembly, decryption, and header decompression Control signal processing to recover upper layer data packets from UE450. Upper layer data packets from the controller / processor 475 may be provided to the core network.
- the first communication device 450 device includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to communicate with all Said at least one processor is used together, said first communication device 450 device receives at least: first information and second information through an air interface, said first information indicating a first time offset value, said second information relative to The first time indicates a first time domain resource; the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, so The first reception time is associated with a time domain resource for receiving the first information.
- the first communication device 450 includes: a memory storing a computer-readable instruction program, where the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: passing through the air
- the interface receives first information and second information, the first information indicating a first time offset value, and the second information indicating a first time domain resource relative to the first time; the first time is associated with the first time A time unit, where the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time is associated with a time domain resource for receiving the first information .
- the second communication device 410 apparatus includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to communicate with all Said at least one processor is used together.
- the second communication device 410 device sends at least: first information and second information through an air interface, the first information indicates a first time offset value, and the second information indicates a first time domain relative to the first time. Resources; the first moment is associated with a first time unit, the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time is associated with A time domain resource for receiving the first information.
- the second communication device 410 apparatus includes: a memory storing a computer-readable instruction program, where the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: The air interface sends first information and second information, where the first information indicates a first time offset value, and the second information indicates a first time domain resource with respect to the first time; the first time is associated with the first time A time unit, the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time is associated with a time domain for receiving the first information Resources.
- the first communication device 450 corresponds to a first node in this application.
- the second communication device 410 corresponds to a second node in this application.
- At least one of ⁇ the antenna 452, the receiver 454, the multi-antenna reception processor 458, and the reception processor 456 ⁇ is used to receive all the components in this application through an air interface.
- the first information and the second information in the present application the first information indicates a first time offset value, and the second information indicates a first time domain resource with respect to the first time;
- ⁇ the antenna 420 At least one of the transmitter 418, the multi-antenna transmission processor 471, and the transmission processor 416 ⁇ is used to send the first information in the present application and all the information in the present application through an air interface.
- the second information, the first information indicates a first time offset value, and the second information indicates a first time domain resource with respect to the first time.
- At least one of ⁇ the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, and the transmission processor 468 ⁇ is used to send the first Wireless signal; at least one of ⁇ the antenna 420, the receiver 418, the multi-antenna reception processor 472, and the reception processor 470 ⁇ is used to receive the first wireless signal in the present application .
- At least one of ⁇ the antenna 452, the receiver 454, the multi-antenna reception processor 458, and the reception processor 456 ⁇ is used to receive the second Wireless signal; at least one of ⁇ the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, and the transmission processor 416 ⁇ is used to send the second wireless signal in the present application .
- At least one of ⁇ the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, and the transmission processor 468 ⁇ is used to send the third in this application Wireless signal; at least one of ⁇ the antenna 420, the receiver 418, the multi-antenna reception processor 472, and the reception processor 470 ⁇ is used to receive the third wireless signal in the present application .
- At least one of ⁇ the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, and the transmission processor 468 ⁇ is used to send the fourth in the present application Wireless signal; at least one of ⁇ the antenna 420, the receiver 418, the multi-antenna reception processor 472, and the reception processor 470 ⁇ is used to receive the fourth wireless signal in the present application .
- At least one of ⁇ the antenna 452, the receiver 454, the multi-antenna reception processor 458, and the reception processor 456 ⁇ is used to receive the first Signaling; at least one of ⁇ the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416 ⁇ is used to send the first signaling in this application .
- Embodiment 5 illustrates a flowchart of a first wireless signal, as shown in FIG. 5.
- communication is performed between the first node U1 and the second node U2 through a secondary link.
- the embodiments and sub-embodiments in Embodiment 5 can be applied to Embodiment 6.
- step S10 For the first node U1, in step S10, transmitting a first radio signal; receiving a first signaling step S11; step S12, the first air interface to receive information and second information; receiving a second radio in step S13 Signal; a third wireless signal is transmitted in step S14.
- step S20 For the second node U2, received in step S20, a first radio signal; a first signaling transmitted in step S21; step S22, the air in the transmission interface through the first information and second information; a second wireless transmitting step S23 Signal; a third wireless signal is received in step S24.
- the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time Is associated with a time domain resource for receiving the first information;
- the first wireless signal is used to determine a synchronization timing at a time unit level, and the synchronization timing at the first time unit is consistent with the synchronization at the time unit level Timing;
- a time domain resource for receiving the second wireless signal is associated with the time domain resource for receiving the first information, and the second information is used to determine that the third wireless signal is occupied Time domain resources, the third wireless signal indicates whether the second wireless signal is correctly decoded;
- the first signaling includes configuration information of the second wireless signal, and the second wireless signal is The configuration information includes the time domain resource for receiving the second wireless signal.
- the first wireless signal includes a DRS (Discovery Reference Signal).
- DRS Data Reference Signal
- the first wireless signal is transmitted on a PSDCH (Physical Sidelink Discovery Channel).
- PSDCH Physical Sidelink Discovery Channel
- the first wireless signal includes at least one of PSSS (Primary, Sidelink, Synchronization, Signal) and SSSS (Secondary, Sidelink, Synchronization, Signal).
- PSSS Primary, Sidelink, Synchronization, Signal
- SSSS Secondary, Sidelink, Synchronization, Signal
- the first wireless signal is transmitted on a PSBCH (Physical Sidelink Broadcasting Channel).
- PSBCH Physical Sidelink Broadcasting Channel
- the first wireless signal is broadcast.
- a start time of the first time unit is determined according to a sending timing of the first node U1.
- a start time of the first time unit is determined according to a sending timing of the first node U1.
- the synchronization timing of the first wireless signal used to determine a time unit level includes: a receiver of the first wireless signal includes a second node U2, and the second node U2 passes the first node A wireless signal determines the synchronization timing of the time unit level of the link from the first node U1 to the second node U2.
- the synchronization timing of the first time unit conforms to the synchronization timing of the time unit level includes: the first time unit is the synchronization timing of the time unit level determined according to the first wireless signal definite.
- the synchronization timing of the first time unit conforms to the synchronization timing of the time unit level includes: determining, by the second node U2, the synchronization timing of the time unit level obtained according to the first wireless signal. The first time unit is described.
- the second node U2 determines the first time offset value through the first wireless signal.
- the second node U2 estimates the first time offset value through the first wireless signal.
- the first time offset value is related to a transmission delay (Transmission Delay) between the first node U1 and the second node U2.
- the first time offset value is related to a timing difference (Timing) between the first node U1 and the second node U2.
- the third wireless signal is HARQ-ACK (Hybrid Automatic Repeat Repeat Acknowledgment, Hybrid Automatic Repeat Request Confirmation) for the second wireless signal.
- HARQ-ACK Hybrid Automatic Repeat Repeat Acknowledgment, Hybrid Automatic Repeat Request Confirmation
- the time domain resource used to receive the second wireless signal is associated with the time domain resource used to receive the first information includes: a time unit occupied by the second wireless signal and the time unit The time unit occupied by the first information is the same.
- the time domain resource used to receive the second wireless signal is associated with the time domain resource used to receive the first information includes: the earliest one multi-carrier occupied by the second wireless signal
- the time unit to which the symbol belongs is the same as the time unit to which the earliest multi-carrier symbol occupied by the first information belongs.
- the time domain resource used to receive the second wireless signal is associated with the time domain resource used to receive the first information includes: the latest one occupied by the second wireless signal is more than one.
- the time unit to which the carrier symbol belongs is the same as the time unit to which the latest multi-carrier symbol occupied by the first information belongs.
- the time domain resource used to receive the second wireless signal is associated with the time domain resource used to receive the first information includes: the time unit occupied by the second wireless signal is the The P-th time unit after the time unit occupied by the first information, the P is a positive integer; the P is fixed, or the P is indicated by dynamic signaling.
- the time domain resource used to receive the second wireless signal is associated with the time domain resource used to receive the first information includes: the earliest one multi-carrier occupied by the second wireless signal
- the time unit to which the symbol belongs is the P-th time unit after the time unit to which the earliest multicarrier symbol occupied by the first information belongs, where P is a positive integer; P is fixed, or P is passed Dynamic signaling indication.
- the time domain resource used to receive the second wireless signal is associated with the time domain resource used to receive the first information includes: the latest one occupied by the second wireless signal is more than one.
- the time unit to which the carrier symbol belongs is the P-th time unit after the time unit to which the latest information of the multi-carrier symbol belongs, the P is a positive integer; the P is fixed, or the P It is indicated by dynamic signaling.
- how to determine that the time domain resources occupied by the third wireless signal is implementation-dependent, that is, does not require standardization.
- the first node U1 determines a time domain resource occupied by the third wireless signal by itself according to the second information.
- the use of the second information to determine a time domain resource occupied by the third wireless signal includes: the first node U1 scheduling as much as possible the time domain resource occupied by the third wireless signal belongs to The first time domain resource.
- the use of the second information to determine a time domain resource occupied by the third wireless signal includes: the first node U1 tries to place the third wireless signal in the first time domain as much as possible. Send in resources.
- the use of the second information to determine the time domain resources occupied by the third wireless signal includes the time domain resources occupied by the third wireless signal without conflicting with other scheduling. Belongs to the first time domain resource.
- the other scheduling is a scheduling from a base station.
- the other scheduling is a scheduling from a cellular network.
- the use of the second information to determine a time domain resource occupied by the third wireless signal includes: on a premise that the first time domain resource is idle, The time domain resource belongs to the first time domain resource.
- the start time of the time unit occupied by the second wireless signal in the time domain is the first time.
- the cut-off time in the time domain of the time unit occupied by the second wireless signal is the first time.
- the second wireless signal is transmitted on a PSSCH (Physical Sidelink Shared Information).
- PSSCH Physical Sidelink Shared Information
- the third wireless signal is transmitted on the PSSCH.
- the third wireless signal is transmitted on a PSCCH (Physical Sidelink Control Information).
- PSCCH Physical Sidelink Control Information
- the first time domain resource includes K1 sub time domain resources, and the time domain resource occupied by the third wireless signal is a sub time domain resource of the K1 sub time domain resources.
- K1 is a positive integer greater than 1.
- the time domain resource occupied by the third wireless signal is the first time domain resource.
- the first signaling includes configuration information of the second wireless signal
- the configuration information of the second wireless signal includes the time domain resource for receiving the second wireless signal
- the first signaling is physical layer signaling.
- the first signaling is SCI (Sidelink Control Information).
- the first signaling occupies a PSCCH.
- the first signaling is used to schedule the second wireless signal.
- the first signaling further includes a frequency hopping indication (Frequency Hopping Flag), resource block scheduling and resource hopping allocation (Resource Blocking and Hopping Resource Allocation), time resource pattern (Time Resource Pattern), MCS ( Modulation (Coding, Scheme), timing advance indication (Timing, Advance Indication), and at least one of the group destination identification (Group Destination ID).
- Frequency Hopping Flag Frequency Hopping Flag
- Resource Blocking and Hopping Resource Allocation Resource Blocking and Hopping Resource Allocation
- time resource pattern Time Resource Pattern
- MCS Modulation (Coding, Scheme)
- Timing, Advance Indication timing advance indication
- Group Destination ID group Destination ID
- the first signaling further includes priority, resource reservation, initial transmission and retransmission frequency domain resource location (Frequency, Resource, Location, Initial Transmission, and Retransmission). At least one of a transmission time interval (Time, Transmission, Transmission, and Retransmission), an MCS, and a retransmission identifier (Retransmission index).
- the first time offset value is related to a subcarrier interval used by the second wireless signal
- the first time offset value is related to a subcarrier interval used by a wireless signal occupied by the first information.
- the first time offset value is related to a subcarrier interval used by the first signaling.
- the first time offset value related to the subcarrier interval used by a given wireless signal means that the first time offset value is equal to the duration of the M multi-carrier symbols in the time domain.
- the subcarrier interval used by any one of the M multicarrier symbols is the same as the subcarrier interval used by the given wireless signal; the given wireless signal is the second wireless signal, or the The given wireless signal is a wireless signal occupied by the first information, or the given wireless signal is the first signaling.
- the second node U2 determines whether the third wireless signal is transmitted according to the detection and demodulation reference signal.
- the second node U2 detects and determines whether the third wireless signal is sent according to a CRC (Cyclic Redundancy Check).
- CRC Cyclic Redundancy Check
- Embodiment 6 illustrates a flowchart of a fourth wireless signal, as shown in FIG. 6.
- the first node U3 and the second node U4 communicate with each other through a secondary link.
- the embodiments in Embodiment 6 can be applied to Embodiment 5.
- step S30 transmitting a first radio signal; receiving a first signaling step S31; step S32 in the first air interface to receive information and second information; fourth wireless transmission in step S33 signal.
- step S40 For the second point U4, received in step S40, a first radio signal; a first signaling transmitted in step S41; step S42 in the air interface via the first transmission information and second information; receiving a fourth wireless in step S43 signal.
- the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time Is associated with a time domain resource for receiving the first information;
- the first wireless signal is used to determine a synchronization timing at a time unit level, and the synchronization timing at the first time unit is consistent with the synchronization at the time unit level Timing;
- the second information is used to determine a time domain resource occupied by the fourth wireless signal, and the time domain resource occupied by the fourth wireless signal is associated with the first time domain resource;
- the first signaling includes configuration information of the fourth wireless signal, and the configuration information of the fourth wireless signal includes the time domain resource for sending the fourth wireless signal.
- the use of the second information to determine a time domain resource occupied by the fourth wireless signal includes: the time domain resource occupied by the second node U4 scheduling the fourth wireless signal belongs to the First time domain resource.
- the use of the second information to determine a time domain resource occupied by the fourth wireless signal includes: the first node U3 tries to place the fourth wireless signal in the first time domain as much as possible. Send in resources.
- the second information used to determine the time domain resources occupied by the fourth wireless signal includes: the time domain resources occupied by the fourth wireless signal without conflicting with other scheduling Belongs to the first time domain resource.
- the other scheduling is a scheduling from a base station.
- the other scheduling is a scheduling from a cellular network.
- the use of the second information to determine the time domain resources occupied by the fourth wireless signal includes: on the premise that the first time domain resources are idle, The time domain resource belongs to the first time domain resource.
- the association of the time domain resource occupied by the fourth wireless signal to the first time-frequency resource includes: the first time-domain resource includes K1 sub-time-domain resources, and the first The time domain resource occupied by the four wireless signals is one of the K1 sub-time domain resources, and K1 is a positive integer greater than 1.
- the association of the time domain resource occupied by the fourth wireless signal to the first time-frequency resource includes: the time domain resource occupied by the fourth wireless signal is the First time domain resource.
- the association of the time domain resource occupied by the fourth wireless signal to the first time-frequency resource includes that the time domain resource occupied by the fourth wireless signal belongs to the first time-frequency resource.
- the fourth wireless signal is transmitted on the PSSCH.
- the fourth wireless signal includes CSI (Channel State Information) of a wireless link between the second node U4 and the first node U3.
- CSI Channel State Information
- the first signaling includes configuration information of the fourth wireless signal
- the configuration information of the fourth wireless signal includes the time domain resource for sending the fourth wireless signal
- the first signaling is used to schedule the fourth wireless signal.
- the first signaling schedules the first node U3 to send the fourth wireless signal to the second node U4.
- the second node U4 determines whether the fourth wireless signal is transmitted according to the detection and demodulation reference signal.
- the second node U4 determines whether the fourth wireless signal is sent according to a CRC detection.
- Embodiment 7 illustrates a timing relationship diagram of a first node and a second node designed by using a conventional timing advance method, as shown in FIG. 7.
- each rectangle in the figure represents a time slot
- the number in the time slot represents the time slot number.
- the second node sends a TA to the first node to adjust the first node's PC-
- the above method can ensure that all wireless signals received by the second node from different terminals are aligned on the second node side, since the first node and the The second node cannot guarantee that it belongs to the same serving base station. If the first node needs to maintain uplink synchronization with the serving base station of the first node, the above method will cause a Uu link and a PC of the first node. -5 link collided.
- TA_1 is a timing advance introduced by the second node to ensure uplink synchronization with the serving base station of the second node
- TA_2 is a PC-5 link sent by the second node to ensure the first node sends
- the timing advance of the uplink wireless signal on the second node is aligned with the uplink timing of the second node itself
- TA_3 is the timing advance originally introduced by the first node to ensure uplink synchronization with the serving base station of the first node.
- the second node needs to have an uplink timing aligned with the serving base station of the second node; it can be seen that because the first node needs to adjust TA_2 for the second node, when the first node sends the PC at time slot # 0
- the wireless signal of the -5 link to the second node, and the wireless signal of the Uu link is sent to the serving base station at time slot # 1.
- the above-mentioned timing advance causes partial collisions filled with oblique squares.
- Embodiment 8 illustrates a timing relationship diagram of a first node and a second node designed by using a first time offset value, as shown in FIG. 8.
- each rectangle in the figure represents a time unit, and the numbers in the time unit represent timeslot numbers.
- TA_1 is the timing advance between the second node and the serving base station of the second node, and TA_3 is the first node.
- T_C is the transmission delay from the second node to the first node
- the second node sends the first information at time unit # 0
- the first node is at time T1 shown in the figure
- the time unit to which T1 delays T2 is the first time unit in this application
- the first node sets the time unit after time unit # 2 according to the indication of the second information.
- #N is determined as a time unit where the first time domain resource is located.
- the first information, the second information, and the second wireless signal are all sent by the first node at time unit # 0 shown in the figure.
- the second information indicates the number of time units between time unit #N to time unit # 2.
- the second information indicates (N-2), and (N-2) indicates that a time unit where the first time domain resource is located is (N-2) th after the first time unit. ) Time units.
- Embodiment 9 illustrates a timing relationship diagram of a first node and a second node using another first time offset design, as shown in FIG. 9.
- each rectangle in the figure represents a time unit, and the number in the time unit represents the time slot number.
- TA_1 is the timing advance between the second node and the serving base station of the second node
- TA_3 is the first node.
- Timing advance with the serving base station of the first node, T_C is the transmission delay from the second node to the first node; the first node and the second node in the figure respectively adjust the uplink timing corresponding to their respective serving base stations; the second node is at Time unit # 0 sends the first information.
- the first node receives the wireless signal corresponding to the first information at time T1 shown in the figure.
- the time unit to which T1 delays T2 is the first time unit in this application.
- the time unit N1 corresponds to the time unit where the first moment is located in the application, and then the first node determines the time unit # N2 after the time unit # N1 as the first time domain resource according to the indication of the second information. Time unit.
- the first information and the second information are transmitted by the first node in the time unit # 0 shown in the figure, and the second wireless signal is transmitted in the time unit # N1.
- the second information indicates the number of time units between time unit # N2 to time unit # N1.
- the second information indicates (N2-N1), and (N2-N1) indicates that a time unit in which the first time domain resource is located is (N2-N1) after the first time unit ) Time units.
- the second information further indicates the (N1-2).
- the value of (N1-2) is fixed, or the value of (N1-2) is configured through high-level signaling.
- Embodiment 10 illustrates a schematic diagram of a first node determining a first time offset value through a first wireless signal, as shown in FIG. 10.
- each of the first node and the second node follows the uplink timing of the serving base station, so that the timing difference between the first node and the second node is T_D;
- the second node sends a first wireless signal, and the transmission delay of the first node and the second node is T_C, and the second node knows that the first node sends the first node at a timing that refers to the serving base station of the first node
- the sequence number of the time unit of the wireless signal it is assumed in the figure that the first wireless signal is sent at time unit # 1 at the timing referenced by the first node, and the time unit # 2 at the timing referenced by the second node is sent to the first node Send the first information in this application.
- the first node can estimate the value of (T_D + T_C) according to the first wireless signal; while for the second node, when the second node receives the first information in the thick dashed box, only It is necessary to delay at least (T_D-T_C) according to the receiving time of the first information to ensure that the delayed time is located in time unit # 4, and then the first node determines the first time domain resource according to time unit # 4 as a reference; for example, the figure
- the first node described in sends the third wireless signal or the fourth wireless signal in this application to the second node at time unit # 5, and the second node only needs to translate forward at time unit # 5 (T_D- T_C) may start detecting the third wireless signal or the fourth wireless signal at any time.
- T_C is generally not larger than T_D. Therefore, when the second node estimates (T_D + T_C), it can be determined by the value of (T_D + T_C) (T_D-T_C) And (T_D-T_C) is the minimum value of the first time offset value in the present application, and then the first node ensures that the first node is referring to the first time point by instructing the first time offset value.
- the location of the wireless transmission to the second node under the uplink synchronization of the serving cell of the node is predictable.
- Embodiment 11 illustrates a schematic diagram of a first time-frequency resource, as shown in FIG. 11.
- the time domain resource occupied by the first time-frequency resource belongs to the first time domain resource in the present application, and the first time domain resource occupies a time unit in the time domain, and the first Time-frequency resources occupy multiple sub-bands in the frequency domain.
- the multiple sub-bands are discrete in the frequency domain.
- a frequency bandwidth occupied by any one of the multiple frequency subbands is a frequency bandwidth corresponding to one PRB (Physical Resource Block).
- PRB Physical Resource Block
- the third wireless signal in the present application is transmitted in one of the plurality of sub-bands.
- the fourth wireless signal in the present application is transmitted in one of the plurality of sub-bands.
- Embodiment 12 illustrates a schematic diagram of a first time domain resource, as shown in FIG. 12.
- the first time domain resource includes K1 sub-time domain resources, and any one of the K1 sub-time domain resources occupies a time unit; K1 is a positive integer.
- the K1 sub-time domain resources are discrete in the time domain.
- the third wireless signal in the present application is transmitted in one of the K1 sub-time domain resources.
- the fourth wireless signal in the present application is transmitted in one of the K1 sub-time domain resources.
- the indication of the first time domain resource with respect to the first time by the second information in this application means that the second information indicates the K1 sub-time domain resources with respect to the first time in The earliest child time domain resource in the time domain.
- Embodiment 13 illustrates a structural block diagram of a processing device in a first node, as shown in FIG. 13.
- the first node processing device 1300 includes a first transceiver 1301, a first receiver 1302, and a first transmitter 1303.
- the first transceiver 1301 receives first information and second information through an air interface, the first information indicates a first time offset value, and the second information indicates a first time domain resource with respect to a first time;
- the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time Is associated with a time domain resource for receiving the first information; time domain resource for receiving the second wireless signal is associated with the time domain resource for receiving the first information, the first Two pieces of information are used to determine a time domain resource occupied by the third wireless signal, and the third wireless signal indicates whether the second wireless signal is correctly decoded.
- the first transceiver 1301 further sends a first wireless signal; the first wireless signal is used to determine a synchronization timing at a time unit level, and the synchronization timing of the first time unit is consistent with the time unit Level of synchronization timing.
- the first transceiver 1301 further receives first signaling, where the first signaling includes the first information and the second information; the first signaling includes the second wireless Configuration information of the signal, and the configuration information of the second wireless signal includes the time domain resource for receiving the second wireless signal.
- the first time offset value is related to a subcarrier interval used by the second wireless signal, or the first time offset value is used by a wireless signal occupied by the first information. Related to the subcarrier spacing.
- the first transceiver 1301 includes an antenna 452, a receiver / transmitter 454, a multi-antenna receiving processor 458, a multi-antenna transmitting processor 457, a receiving processor 456, and a transmitting processor in Embodiment 4. 468. At least the first 6 of the controller / processor 459.
- the first receiver 1302 includes at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller / processor 459 in Embodiment 4.
- the first transmitter 1303 includes at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller / processor 459 in Embodiment 4.
- Embodiment 14 illustrates a structural block diagram of a processing device in a second node, as shown in FIG. 14.
- the second node processing device 1400 includes a second transceiver 1401, a second transmitter 1402, and a second receiver 1403.
- the second transceiver 1401 sends first information and second information through an air interface, the first information indicates a first time offset value, and the second information indicates a first time domain resource with respect to the first time;
- the second receiver 1403 receives a third wireless signal
- the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time Is associated with a time domain resource for receiving the first information; time domain resource for receiving the second wireless signal is associated with the time domain resource for receiving the first information, the first Two pieces of information are used to determine a time domain resource occupied by the third wireless signal, and the third wireless signal indicates whether the second wireless signal is correctly decoded.
- the second transceiver 1401 further receives a first wireless signal; the first wireless signal is used to determine a synchronization timing at a time unit level, and the synchronization timing of the first time unit is consistent with the time unit Level of synchronization timing.
- the second transceiver 1401 further sends first signaling, where the first signaling includes the first information and the second information; the first signaling includes the second wireless Configuration information of the signal, and the configuration information of the second wireless signal includes the time domain resource for receiving the second wireless signal.
- the first time offset value is related to a subcarrier interval used by the second wireless signal, or the first time offset value is used by a wireless signal occupied by the first information. Related to the subcarrier spacing.
- the second transceiver 1401 includes an antenna 420, a transmitter / receiver 418, a multi-antenna transmitting processor 471, a multi-antenna receiving processor 472, a transmitting processor 416, and a receiving processor in Embodiment 4. 470. At least the first six of the controller / processor 475.
- the second transmitter 1402 includes at least the first 6 of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller / processor 475 in Embodiment 4.
- the second receiver 1403 includes at least the first four of the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, and the controller / processor 475 in the fourth embodiment.
- Embodiment 15 illustrates a structural block diagram of a processing device in another first node, as shown in FIG. 15.
- the first node processing device 1500 includes a third transceiver 1501 and a third transmitter 1502.
- the third transceiver 1501 receives first information and second information through an air interface, the first information indicates a first time offset value, and the second information indicates a first time domain resource with respect to the first time;
- the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time Is associated with a time domain resource used to receive the first information; the second information is used to determine a time domain resource occupied by the fourth wireless signal, and the time occupied by the fourth wireless signal A domain resource is associated to the first time domain resource.
- the third transceiver 1501 further sends a first wireless signal; the first wireless signal is used to determine synchronization timing at a time unit level, and the synchronization timing of the first time unit is consistent with the time unit Level of synchronization timing.
- the third transceiver 1501 further receives first signaling, where the first signaling includes the first information and the second information; the first signaling includes the fourth wireless Configuration information of the signal, and the configuration information of the fourth wireless signal includes the time domain resource for sending the fourth wireless signal.
- the first time offset value is related to a subcarrier interval used by a wireless signal occupied by the first information.
- the third transceiver 1501 includes an antenna 452, a receiver / transmitter 454, a multi-antenna receiving processor 458, a multi-antenna transmitting processor 457, a receiving processor 456, and a transmitting processor in Embodiment 4. 468. At least the first 6 of the controller / processor 459.
- the third transmitter 1502 includes at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller / processor 459 in the fourth embodiment.
- Embodiment 16 illustrates a structural block diagram of a processing device in another second node, as shown in FIG. 16.
- the second node processing device 1600 includes a fourth transceiver 1601 and a third receiver 1602.
- the fourth transceiver 1601 sends first information and second information through an air interface, the first information indicates a first time offset value, and the second information indicates a first time domain resource with respect to the first time;
- the first time is associated with a first time unit, and the first time unit is a time unit to which the first reception time is delayed after the first time offset value, and the first reception time Is associated with a time domain resource used to receive the first information; the second information is used to determine a time domain resource occupied by the fourth wireless signal, and the time occupied by the fourth wireless signal A domain resource is associated to the first time domain resource.
- the fourth transceiver 1601 further receives a first wireless signal; the first wireless signal is used to determine a synchronization timing at a time unit level, and the synchronization timing of the first time unit conforms to the time unit Level of synchronization timing.
- the fourth transceiver 1601 further sends first signaling, where the first signaling includes the first information and the second information; the first signaling includes the fourth wireless Configuration information of the signal, and the configuration information of the fourth wireless signal includes the time domain resource for sending the fourth wireless signal.
- the first time offset value is related to a subcarrier interval used by a wireless signal occupied by the first information.
- the fourth transceiver 1601 includes the antenna 420, the transmitter / receiver 418, the multi-antenna transmitting processor 471, the multi-antenna receiving processor 472, the transmitting processor 416, and the receiving processor in Embodiment 4. 470. At least the first six of the controller / processor 475.
- the third receiver 1602 includes at least the first four of the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, and the controller / processor 475 in the fourth embodiment.
- the first node in this application includes, but is not limited to, mobile phones, tablet computers, notebooks, network cards, low-power devices, eMTC devices, NB-IoT devices, in-vehicle communication devices, aircraft, aircraft, drones, remote-controlled aircraft, and other wireless devices.
- communication device The second node in this application includes, but is not limited to, mobile phones, tablet computers, notebooks, network cards, low-power devices, eMTC devices, NB-IoT devices, in-vehicle communication devices, aircraft, aircraft, drones, remotely controlled aircraft, and other wireless devices. communication device.
- the user equipment or UE or terminal in this application includes, but is not limited to, mobile phones, tablets, notebooks, network cards, low-power devices, eMTC devices, NB-IoT devices, in-vehicle communication devices, aircraft, aircraft, drones, remote Aircraft and other wireless communication equipment.
- the base station equipment or base station or network side equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, eNB, gNB, transmitting and receiving nodes TRP, GNSS, relay satellites, satellite base stations, and air Wireless communication equipment such as base stations.
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Abstract
本申请公开了一种被用于无线通信的节点中的方法和装置。第一节点通过空中接口接收第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。本申请通过设计所述第一时间偏移值,实现当终端A希望终端B向终端A发送时,所述终端B按照自身获得的定时进行发送,而不需要终端A和终端B之间进行多次交互以获得定时提前,提高物联网及车联网***中副链路上无线信号的传输效率,提升***整体性能。
Description
本申请涉及无线通信***中的传输方法和装置,尤其涉及无线通信中副链路(Sidelink)上进行的通信方法和装置。
未来无线通信***的应用场景越来越多元化,不同的应用场景对***提出了不同的性能要求。为了满足多种应用场景的不同的性能需求,在3GPP(3rd Generation Partner Project,第三代合作伙伴项目)RAN(Radio Access Network,无线接入网)#72次全会上决定对新空口技术(NR,New Radio)(或Fifth Generation,5G)进行研究,在3GPP RAN#75次全会上通过了NR的WI(Work Item,工作项目),开始对NR进行标准化工作。
针对迅猛发展的车联网(Vehicle-to-Everything,V2X)业务,3GPP也开始启动了在NR框架下的标准制定和研究工作。目前3GPP已经完成了面向5G V2X业务的需求制定工作,并写入标准TS22.886中。3GPP为5G V2X业务定义了4大应用场景组(Use Case Group),包括:自动排队驾驶(Vehicles Platooning),支持扩展传感(Extended Sensors),半/全自动驾驶(Advanced Driving)和远程驾驶(Remote Driving)。在3GPP RAN#80次全会上已启动基于NR的V2X技术研究。
发明内容
为了满足新的业务需求,相比LTE V2X***,NR V2X***具有更高吞吐量,更高可靠性,更低延时,更远传输距离,更精准定位,数据包大小和发送周期可变性更强,以及与现有3GPP技术和非3GPP技术更有效共存的关键技术特征。当前LTE V2X***的工作模式仅限于广播(Broadcast)传输。根据在3GPP RAN#80次全会上达成的共识,NR V2X将研究支持单播(Unicast),组播(Groupcast)和广播多种工作模式的技术方案;且定义V2X中终端与基站的链路是Uu链路,而终端和终端之间的链路是PC-5链路。
传统的单播传输中,为保证在基站侧接收到的来自多个不同UE(User Equipment,用户设备)的上行接收在时域是对齐的,UE在发送时均需要将上行发送时间按照自己接收的下行子帧的起始时间向前调整一个TA(Timing Advance,定时提前),而所述TA是基站估计并发送给UE的。
在当前LTE D2D(Device to Device,设备到设备)/V2X的工作模式下,用户设备通过Sidelink发送的无线信号是广播的,不会针对某一特定用户设备发送无线信号。当存在针对某一特定用户设备的大数据包业务时,通过广播传输的工作模式,资源利用效率非常低,也无法保证可靠传输;因此需要NR背景下的D2D及V2X考虑单播传输以提高频谱效率和传输性能,而D2D及V2X单播传输时,上述定时的问题也需要被重新考虑。
针对上述问题,本申请公开了一种解决方案用以支持单播传输。需要说明的是,在不冲突的情况下,本申请的用户设备中的实施例和实施例中的特征可以应用到基站中,反之亦然。在不冲突的情况下,本申请的实施例和实施例中的特征可以任意相互组合。进一步的,虽然本申请的初衷是针对基于单播的传输机制,但本申请也能被用于广播和组播传输。更进一步的,虽然本申请的初衷是针对单载波通信,但本申请也能被用于多载波通信。
作为一个实施例,本申请中的第一节点向第二节点的传输定义为上行PC-5链路,而本申请中的第二节点向第一节点的传输定义为下行PC-5链路。
本申请公开了一种被用于无线通信的第一节点中的方法,其特征在于包括:
通过空中接口接收第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;
其中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
作为一个实施例,上述方法的好处在于:所述第一时域资源是相对于所述第一时刻的时域资源,而与所述第一时刻关联的所述第一时间单元是所述第一接收时间延迟所述第一时间偏移值之后所属的时间单元;当所述第一时域资源用于所述第一节点的无线发送时,所述所述第一节点的无线发送是参考所述第一节点的自身的参考定时的,比如所诉第一节点的服务基站的上行定时,避免所述第一节点进行类似Uu接口上上行发送提前调整,简化V2X通信中两个终端之间的操作。
作为一个实施例,上述方法的另一个好处在于:通过所述第一时间偏移值,所述第一信息的发送者将所述第一节点的上行发送偏移到给定时间范围之内,并通过所述第一节点发送的无线信号(例如本申请中的所述第一无线信号)获得来自第一节点的接收定时,进而在与给定时间范围对应的某个时间范围中检测来自所述第一节点的发送。
作为一个实施例,上述方法的再一个好处在于:上述根据所述第一节点自身的参考定时和所述第一时间偏移值去确定所述第一时域资源的方式并不需要改变所述第一节点与服务基站之间的上行定时,也不需要V2X之间进行针对V2X链路的TA估计和交互,简化V2X传输。
作为一个实施例,上述方法的又一个好处在于:所述第一时域资源是所述第一信息的发送端预计的接收来自所述第一节点的无线信号的区域,所述第一信息的发送者并没有强制所述第一节点一定在对应的区域发送无线信号,进而避免了对所述第一节点和基站之间通信的影响。
根据本申请的一个方面,上述方法的特征在于包括:
发送第一无线信号;
其中,所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时。
作为一个实施例,上述方法的好处在于:所述第一无线信号被所述第一信息的发送者用于确定第一时间偏移值,且被所述第一信息的发送者用于确定来自第一节点的下行PC-5链路的定时;进而保证所述第一信息的发送者通过所述第一时间偏移值确保在所述第一时域资源中检测到所述第一节点发送的无线信号。
根据本申请的一个方面,上述方法的特征在于包括:
接收第二无线信号;
发送第三无线信号;
其中,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源,所述第二信息被用于确定所述第三无线信号所占用的时域资源,所述第三无线信号指示所述第二无线信号是否被正确译码。
作为一个实施例,上述方法的好处在于:所述第三无线信号是PC-5链路上的HARQ-ACK,以提高PC-5链路的性能。
作为一个实施例,上述方法的另一个好处在于:所述第一节点的接收均参考来自所述第一信息的发送者的PC-5链路的下行信号,而所述第一节点的发送仅在参考PC-5链路的下行定时的前提下加入了所述第一时间偏移值,并未要求第一节点调整TA,简化了第一节点的操作;进一步的,当所述第一节点和所述第一信息的发送者属于不同的基站,且参考不同的同步源时,上述方式保证了一切发送均参考接收定时,且PC-5链路上不进行TA操作,避免对Uu链路的干扰。
根据本申请的一个方面,上述方法的特征在于包括:
发送第四无线信号;
其中,所述第二信息被用于确定所述第四无线信号所占用的时域资源,所述第四无线信号所占用的所述时域资源被关联到所述第一时域资源。
作为一个实施例,上述方法的好处在于:所述第一节点所有的PC-5链路上行发送均可采用本申请中的方案,而不局限在PC-5链路的HARQ-ACK上。
根据本申请的一个方面,上述方法的特征在于包括:
接收第一信令,所述第一信令包括所述第一信息和所述第二信息;
其中,所述第一信令包括所述第二无线信号的配置信息,所述第二无线信号的所述配置信息包括所述用于接收所述第二无线信号的时域资源;或者所述第一信令包括所述第四无线信号的配置信息,所述第四无线信号的所述配置信息包括所述用于发送所述第四无线信号的时域资源。
作为一个实施例,上述方法的好处在于:所述第一信息所包括的所述第一时间偏移值,以及所述第二信息是动态调整的,提高所述第一时间偏移值的精度和PC-5链路上的调度灵活性。
根据本申请的一个方面,上述方法的特征在于,所述第一时间偏移值与所述第二无线信号所采用的子载波间隔有关,或者所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
作为一个实施例,上述方法的好处在于:所述第一时间偏移值和PC-5链路上的无线信号采用的子载波间隔有关,以提高本申请中的方法的可靠性和对不同子载波间隔的适应性。
本申请公开了一种被用于无线通信的第二节点中的方法,其特征在于包括:
通过空中接口发送第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;
其中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
根据本申请的一个方面,上述方法的特征在于包括:
接收第一无线信号;
其中,所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时。
根据本申请的一个方面,上述方法的特征在于包括:
发送第二无线信号;
接收第三无线信号;
其中,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源,所述第二信息被用于确定所述第三无线信号所占用的时域资源,所述第三无线信号指示所述第二无线信号是否被正确译码。
根据本申请的一个方面,上述方法的特征在于包括:
接收第四无线信号;
其中,所述第二信息被用于确定所述第四无线信号所占用的时域资源,所述第四无线信号所占用的所述时域资源被关联到所述第一时域资源。
根据本申请的一个方面,上述方法的特征在于包括:
发送第一信令,所述第一信令包括所述第一信息和所述第二信息;
其中,所述第一信令包括所述第二无线信号的配置信息,所述第二无线信号的所述配置信息包括所述用于接收所述第二无线信号的时域资源;或者所述第一信令包括所述第四无线信号的配置信息,所述第四无线信号的所述配置信息包括所述用于发送所述第四无线信号的时域资源。
根据本申请的一个方面,上述方法的特征在于,所述第一时间偏移值与所述第二无线信号所采用的子载波间隔有关,或者所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
本申请公开了一种被用于无线通信的第一节点,其特征在于包括:
第一收发机,通过空中接口接收第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;
其中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
本申请公开了一种被用于无线通信的第二节点,其特征在于包括:
第二收发机,通过空中接口发送第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;
其中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
作为一个实施例,和传统方案相比,本申请具备如下优势:
-.当所述第一时域资源用于所述第一节点的无线发送时,所述第一节点的无线发送是参考所述第一节点自身的定时,例如所述第一节点的服务基站的上行定时,避免所述第一节点进行类似Uu接口上上行发送提前调整,简化V2X通信中两个终端之间的操作。
-.通过所述第一时间偏移值,所述第一信息的发送者将所述第一节点的上行发送偏移到给定时间范围之内,并通过所述第一无线信号获得来自第一节点的接收定时,进而在与给定时间范围对应的某个时间范围中检测来自所述第一节点的无线发送。
-.所述第一节点的接收均参考来自所述第一信息的发送者的PC-5链路的下行信号,而所述第一节点的发送仅在参考PC-5链路的下行定时的前提下加入了所述第一时间偏移值,并未调整所述第一节点的上行发送定时,简化了第一节点的操作;进一步的,当所述第一节点和所述第一信息的发送者属于不同的基站,且参考不同的同步源时,上述方式保证了一切发送均参考给自服务基站的上行定时,且PC-5链路上不进行TA操作,避免对Uu链路的干扰。
-.所述第一时域资源是所述第一信息的发送端预计的接收来自所述第一节点的无线信号的区域,所述第一信息的发送者并没有强制所述第一节点一定在对应的区域发送无线信号,进而避免了对所述第一节点和服务基站之间通信的影响。
通过阅读参照以下附图中的对非限制性实施例所作的详细描述,本申请的其它特征、目的和优点将会变得更加明显:
图1示出了根据本申请的一个实施例的第一信息和第二信息的流程图;
图2示出了根据本申请的一个实施例的网络架构的示意图;
图3示出了根据本申请的一个实施例的用户平面和控制平面的无线协议架构的实施例的示意图;
图4示出了根据本申请的一个实施例的第一通信节点和第二通信节点的示意图;
图5示出了根据本申请的一个实施例的第一无线信号的流程图;
图6示出了根据本申请的一个实施例的第四无线信号的流程图;
图7示出了根据本申请的一个实施例的采用传统定时提前方式设计的第一节点和第二节点的时序关系图;
图8示出了根据本申请的一个实施例的采用第一时间偏移值设计的第一节点和第二节点的时序关系图;
图9示出了根据本申请的另一个实施例的采用第一时间偏移值设计的第一节点和第 二节点的时序关系图;
图10示出了根据本申请的一个实施例的第一节点通过第一无线信号确定第一时间偏移值的示意图;
图11示出了根据本申请的一个实施例的第一时频资源的示意图;
图12示出了根据本申请的一个实施例的第一时域资源的示意图;
图13示出了根据本申请的一个实施例的用于第一节点中的处理装置的结构框图;
图14示出了根据本申请的一个实施例的用于第二节点中的处理装置的结构框图;
图15示出了根据本申请的另一个实施例的用于第一节点中的处理装置的结构框图;
图16示出了根据本申请的另一个实施例的用于第二节点中的处理装置的结构框图;
下文将结合附图对本申请的技术方案作进一步详细说明,需要说明的是,在不冲突的情况下,本申请的实施例和实施例中的特征可以任意相互组合。
实施例1
实施例1示例了第一信息和第二信息的流程图,如附图1所示。在附图1所示的100中,每个方框代表一个步骤。
在实施例1中,本申请中的所述第一节点在步骤101通过空中接口接收第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
作为一个实施例,所述第一接收时间是所述第一信息所占用的多载波符号在所述第一节点侧(Side)的截止时刻。
作为一个实施例,所述第一接收时间是所述第一信息所占用的多载波符号在所述第一节点侧的起始时刻。
作为一个实施例,所述第一信息和所述第二信息分别是本申请中的所述第一信令中的两个域,所述第一接收时间是所述第一节点接收所述第一信令的截止时刻。
作为一个实施例,所述第一信息和所述第二信息分别是本申请中的所述第一信令中的两个域,所述第一接收时间是所述第一节点接收所述第一信令的起始时刻。
作为一个实施例,所述第一信息和所述第二信息分别是第一信令中的两个域,所述第一接收时间是所述第一节点接收所述第一信令的最迟的一个多载波符号。
作为一个实施例,所述第一信息和所述第二信息分别是第一信令中的两个域,所述第一接收时间是所述第一节点接收所述第一信令的最早的一个多载波符号。
作为一个实施例,本申请中所述多载波符号是SC-FDMA(Single-Carrier Frequency Division Multiple Access,单载波频分复用接入)符号。
作为一个实施例,本申请中所述多载波符号是FBMC(Filter Bank Multi Carrier,滤波器组多载波)符号。
作为一个实施例,本申请中所述多载波符号是包含CP(Cyclic Prefix,循环前缀)的OFDM符号。
作为一个实施例,本申请中所述多载波符号是包含CP的DFT-s-OFDM(Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing,离散傅里叶变换扩频的正交频分复用)符号。
作为一个实施例,本申请中所述多载波符号是DFT-S-FDMA(Discrete Fourier Transform Spreading Frequency Division Multiple Access,离散傅里叶变换扩频的频分复用接入)符号。
作为一个实施例,所述第一时刻是所述第一时间单元的开始(Start)。
作为一个实施例,所述第一时刻是所述第一时间单元的截止(End)。
作为一个实施例,所述第一时刻是所述第一时间单元之后的第Q1个时间单元的开始(Start),所述Q1是正整数。
作为一个实施例,所述第一时刻是所述第一时间单元之后的第Q1个时间单元的截止(End),所述Q1是正整数。
作为上述两个实施例的一个子实施例,所述第Q1个时间单元是一个时隙(Slot),或者所述第Q1个时间单元是一个子帧(Subframe)。
作为一个实施例,所述所述第二信息相对于第一时刻指示第一时域资源是指:所述第一时刻是所述第一时间单元的开始,所述第一时域资源所占用的时间单元是所述第一时间单元之后的第Q2个时间单元,所述第二信息指示所述Q2,所述Q2是正整数。
作为一个实施例,所述所述第二信息相对于第一时刻指示第一时域资源是指:所述第一时刻是所述第一时间单元的截止,所述第一时域资源所占用的时间单元是所述第一时间单元之后的第Q2个时间单元,所述第二信息指示所述Q2,所述Q2是正整数。
作为一个实施例,所述所述第二信息相对于第一时刻指示第一时域资源是指:所述第一时刻是所述第一时间单元之后的第Q1个时间单元的开始,所述第一时域资源所占用的时间单元是所述第Q1个时间单元之后的第Q3个时间单元,所述第二信息指示所述Q3,所述Q3是正整数。
作为一个实施例,所述所述第二信息相对于第一时刻指示第一时域资源是指:所述第一时刻是所述第一时间单元之后的第Q1个时间单元的截止,所述第一时域资源所占用的时间单元是所述第Q1个时间单元之后的第Q3个时间单元,所述第二信息指示所述Q3,所述Q3是正整数。
作为一个实施例,本申请中的所述Q1是固定的。
作为一个实施例,本申请中的所述Q1是可配置的。
作为一个实施例,本申请中的所述Q1是通过物理层信令指示的。
作为一个实施例,本申请中的所述Q1是通过所述第二信息指示。
作为一个实施例,所述第一时间偏移值不超过一个时间单元的持续时间。
作为一个实施例,所述第一时间偏移值对应正整数个多载波符号。
作为一个实施例,所述第一时间偏移值对应正整数个多载波符号的持续时间。
作为一个实施例,本申请中的所述第一时间单元是一个时隙,或者所述第一时间单元是一个子帧。
作为一个实施例,所述第一时间偏移值的单位是一个多载波符号的持续时间。
作为一个实施例,所述第一节点是一个终端。
作为一个实施例,所述第一节点是一个用户设备。
作为一个实施例,所述第一节点是一辆交通工具。
作为一个实施例,本申请中的所述时间单元是子帧。
作为一个实施例,本申请中的所述时间单元是时隙。
作为一个子实施例,本申请中的所述空中接口对应实施例2中的UE201和UE241之间的接口。
作为一个子实施例,本申请中的所述空中接口通过无线信道承载。
作为一个子实施例,本申请中的所述空中接口是PC-5链路对应的无线接口。
作为一个实施例,所述第一时间单元和所述第一时域资源所占用的时间单元之间间隔正整数个时间单元。
作为一个实施例,所述第一时间单元与所述第一时域资源所占用的时间单元连续,且所述第一时间单元是所述第一时域资源所占用的时间单元之后的时间单元。
作为一个实施例,所述第一接收时刻在所述第一节点侧位于一个时间单元中。
作为一个实施例,所述第一接收时刻在所述第一节点侧不属于任何时间单元的起始时刻,且所述第一接收时刻在所述第一节点侧不属于任何时间单元的截止时刻。
实施例2
实施例2示例了网络架构的示意图,如附图2所示。
图2说明了5G NR,LTE(Long-Term Evolution,长期演进)及LTE-A(Long-Term Evolution Advanced,增强长期演进)***的网络架构200的图。5G NR或LTE网络架构200可称为EPS(Evolved Packet System,演进分组***)200某种其它合适术语。EPS 200可包括一个或一个以上UE(User Equipment,用户设备)201,一个与UE201进行副链路通信的UE241,NG-RAN(下一代无线接入网络)202,EPC(Evolved Packet Core,演进分组核心)/5G-CN(5G-Core Network,5G核心网)210,HSS(Home Subscriber Server,归属签约用户服务器)220和因特网服务230。EPS可与其它接入网络互连,但为了简单未展示这些实体/接口。如图所示,EPS提供包交换服务,然而所属领域的技术人员将容易了解,贯穿本申请呈现的各种概念可扩展到提供电路交换服务的网络或其它蜂窝网络。NG-RAN包括NR节点B(gNB)203和其它gNB204。gNB203提供朝向UE201的用户和控制平面协议终止。gNB203可经由Xn接口(例如,回程)连接到其它gNB204。gNB203也可称为基站、基站收发台、无线电基站、无线电收发器、收发器功能、基本服务集合(BSS)、扩展服务集合(ESS)、TRP(发送接收节点)或某种其它合适术语。gNB203为UE201提供对EPC/5G-CN 210的接入点。UE201的实例包括蜂窝式电话、智能电话、会话起始协议(SIP)电话、膝上型计算机、个人数字助理(PDA)、卫星无线电、非地面基站通信、卫星移动通信、全球定位***、多媒体装置、视频装置、数字音频播放器(例如,MP3播放器)、相机、游戏控制台、无人机、飞行器、窄带物联网设备、机器类型通信设备、陆地交通工具、汽车、可穿戴设备,或任何其它类似功能装置。所属领域的技术人员也可将UE201称为移动台、订户台、移动单元、订户单元、无线单元、远程单元、移动装置、无线装置、无线通信装置、远程装置、移动订户台、接入终端、移动终端、无线终端、远程终端、手持机、用户代理、移动客户端、客户端或某个其它合适术语。gNB203通过S1/NG接口连接到EPC/5G-CN 210。EPC/5G-CN 210包括MME(Mobility Management Entity,移动性管理实体)/AMF(Authentication Management Field,鉴权管理域)/UPF(User Plane Function,用户平面功能)211、其它MME/AMF/UPF214、S-GW(Service Gateway,服务网关)212以及P-GW(Packet Date Network Gateway,分组数据网络网关)213。MME/AMF/UPF211是处理UE201与EPC/5G-CN 210之间的信令的控制节点。大体上,MME/AMF/UPF211提供承载和连接管理。所有用户IP(Internet Protocal,因特网协议)包是通过S-GW212传送,S-GW212自身连接到P-GW213。P-GW213提供UE IP地址分配以及其它功能。P-GW213连接到因特网服务230。因特网服务230包括运营商对应因特网协议服务,具体可包括因特网、内联网、IMS(IP Multimedia Subsystem,IP多媒体子***)和包交换串流服务。
作为一个实施例,所述UE201对应本申请中的所述第一节点。
作为一个实施例,所述UE241对应本申请中的所述第二节点。
作为一个实施例,本申请中的所述第一节点是所述UE201,本申请中的所述第二节点是所述gNB203覆盖内的一个终端。
作为一个实施例,本申请中的所述第一节点是所述UE201,本申请中的所述第二节点是所述gNB203覆盖外的一个终端。
作为一个实施例,本申请中的所述第一节点和第二节点均被所述gNB203服务。
作为一个实施例,所述UE201支持同时在多个CC上进行传输。
作为一个实施例,所述UE201支持同时在多个BWP(Bandwidth Part,带宽部分)上进行传输。
作为一个实施例,所述UE241支持同时在多个CC上进行传输。
作为一个实施例,所述UE241支持同时在多个BWP上进行传输。
作为一个实施例,所述gNB203支持同时在多个CC上进行传输。
作为一个实施例,所述gNB203支持同时在多个BWP上进行传输。
作为一个实施例,所述UE201和所述UE241之间的无线链路对应本申请中的所述PC-5链路。
作为一个实施例,从所述UE201至所述UE241之间的无线链路对应本申请中的所述PC-5上行链路。
作为一个实施例,从所述UE241至所述UE201之间的无线链路对应本申请中的所述PC-5下行链路。
作为一个实施例,所述UE201和NR节点B之间的无线链路对应本申请中的Uu链路。
实施例3
实施例3示出了根据本申请的一个用户平面和控制平面的无线协议架构的实施例的示意图,如附图3所示。
附图3是说明用于用户平面和控制平面的无线电协议架构的实施例的示意图,图3用三个层展示用于用户设备(UE)和基站设备(gNB或eNB)的无线电协议架构:层1、层2和层3。层1(L1层)是最低层且实施各种PHY(物理层)信号处理功能。L1层在本文将称为PHY301。层2(L2层)305在PHY301之上,且负责通过PHY301在UE与gNB之间的链路。在用户平面中,L2层305包括MAC(Medium Access Control,媒体接入控制)子层302、RLC(Radio Link Control,无线链路层控制协议)子层303和PDCP(Packet Data Convergence Protocol,分组数据汇聚协议)子层304,这些子层终止于网络侧上的gNB处。虽然未图示,但UE可具有在L2层305之上的若干上部层,包括终止于网络侧上的P-GW处的网络层(例如,IP层)和终止于连接的另一端(例如,远端UE、服务器等等)处的应用层。PDCP子层304提供不同无线电承载与逻辑信道之间的多路复用。PDCP子层304还提供用于上部层数据包的标头压缩以减少无线电发射开销,通过加密数据包而提供安全性,以及提供gNB之间的对UE的越区移交支持。RLC子层303提供上部层数据包的分段和重组装,丢失数据包的重新发射以及数据包的重排序以补偿由于HARQ(Hybrid Automatic Repeat reQuest,混合自动重传请求)造成的无序接收。MAC子层302提供逻辑与输送信道之间的多路复用。MAC子层302还负责在UE之间分配一个小区中的各种无线电资源(例如,资源块)。MAC子层302还负责HARQ操作。在控制平面中,用于UE和gNB的无线电协议架构对于物理层301和L2层305来说大体上相同,但没有用于控制平面的标头压缩功能。控制平面还包括层3(L3层)中的RRC(Radio Resource Control,无线电资源控制)子层306。RRC子层306负责获得无线电资源(即,无线电承载)且使用gNB与UE之间的RRC信令来配置下部层。
作为一个实施例,附图3中的无线协议架构适用于本申请中的所述第一节点。
作为一个实施例,附图3中的无线协议架构适用于本申请中的所述第二节点。
作为一个实施例,附图3中的无线协议架构适用于本申请中的基站。
作为一个实施例,本申请中的所述第一信息生成于所述PHY301。
作为一个实施例,本申请中的所述第二信息生成于所述PHY301。
作为一个实施例,本申请中的所述第一信令生成于所述PHY301。
作为一个实施例,本申请中的所述第一无线信号生成于所述PHY301。
作为一个实施例,本申请中的所述第二无线信号生成于所述MAC子层302。
作为一个实施例,本申请中的所述第三无线信号生成于所述MAC子层302。
作为一个实施例,本申请中的所述第四无线信号生成于所述MAC子层302。
实施例4
实施例4示出了根据本申请的第一通信设备和第二通信设备的示意图,如附图4所示。图4是在接入网络中相互通信的第一通信设备410以及第二通信设备450的框图。
第一通信设备450包括控制器/处理器459,存储器460,数据源467,发射处理器468,接收处理器456,多天线发射处理器457,多天线接收处理器458,发射器/接收器454和天线452。
第二通信设备410包括控制器/处理器475,存储器476,接收处理器470,发射处理器416,多天线接收处理器472,多天线发射处理器471,发射器/接收器418和天线420。
在从所述第二通信设备410到所述第一通信设备450的传输中,在所述第二通信设备410处,来自核心网络的上层数据包被提供到控制器/处理器475。控制器/处理器475实施L2层的功能性。在从所述第二通信设备410到所述第一通信设备450的传输中,控制器/处理器475提供标头压缩、加密、包分段和重排序、逻辑与输送信道之间的多路复用,以及基于各种优先级量度对所述第一通信设备450的无线电资源分配。控制器/处理器475还负责丢失包的重新发射,和到所述第二通信设备450的信令。发射处理器416和多天线发射处理器471实施用于L1层(即,物理层)的各种信号处理功能。发射处理器416实施编码和交错以促进所述第一通信设备450处的前向错误校正(FEC),以及基于各种调制方案(例如,二元相移键控(BPSK)、正交相移键控(QPSK)、M相移键控(M-PSK)、M正交振幅调制(M-QAM))的信号群集的映射。多天线发射处理器471对经编码和调制后的符号进行数字空间预编码,包括基于码本的预编码和基于非码本的预编码,和波束赋型处理,生成一个或多个空间流。发射处理器416随后将每一空间流映射到子载波,在时域和/或频域中与参考信号(例如,导频)多路复用,且随后使用快速傅立叶逆变换(IFFT)以产生载运时域多载波符号流的物理信道。随后多天线发射处理器471对时域多载波符号流进行发送模拟预编码/波束赋型操作。每一发射器418把多天线发射处理器471提供的基带多载波符号流转化成射频流,随后提供到不同天线420。
在从所述第二通信设备410到所述第一通信设备450的传输中,在所述第一通信设备450处,每一接收器454通过其相应天线452接收信号。每一接收器454恢复调制到射频载波上的信息,且将射频流转化成基带多载波符号流提供到接收处理器456。接收处理器456和多天线接收处理器458实施L1层的各种信号处理功能。多天线接收处理器458对来自接收器454的基带多载波符号流进行接收模拟预编码/波束赋型操作。接收处理器456使用快速傅立叶变换(FFT)将接收模拟预编码/波束赋型操作后的基带多载波符号流从时域转换到频域。在频域,物理层数据信号和参考信号被接收处理器456解复用,其中参考信号将被用于信道估计,数据信号在多天线接收处理器458中经过多天线检测后恢复出以所述第一通信设备450为目的地的任何空间流。每一空间流上的符号在接收处理器456中被解调和恢复,并生成软决策。随后接收处理器456解码和解交错所述软决策以恢复在物理信道上由所述第二通信设备410发射的上层数据和控制信号。随后将上层数据和控制信号提供到控制器/处理器459。控制器/处理器459实施L2层的功能。控制器/处理器459可与存储程序代码和数据的存储器460相关联。存储器460可称为计算机可读媒体。在从所述第二通信设备410到所述第二通信设备450的传输中,控制器/处理器459提供输送与逻辑信道之间的多路分用、包重组装、解密、标头解压缩、控制信号处理以恢复来自核心网络的上层数据包。随后将上层数据包提供到L2层之上的所有协议层。也可将各种控制信号提供到L3以用于L3处理。
在从所述第一通信设备450到所述第二通信设备410的传输中,在所述第一通信设备450处,使用数据源467来将上层数据包提供到控制器/处理器459。数据源467表示L2层之上的所有协议层。类似于在从所述第二通信设备410到所述第一通信设备450的传输中所描述所述第二通信设备410处的发送功能,控制器/处理器459基于无线资源分配来实施标头压缩、加密、包分段和重排序以及逻辑与输送信道之间的多路复用,实施用于用户平面和控制平面的L2层功能。控制器/处理器459还负责丢失包的重新发射,和到所述第二通信设备410的信令。发射处理器468执行调制映射、信道编码处理,多天线发射处理器457进行数字多天线空间预编码,包括基于码本的预编码和基于非码本的预编码,和波束赋型处理,随后发射处理器468将产生的空间流调制成多载波/单载波符号流,在多天线发射处理器457中经过模拟预编码/波束赋型操作后再经由发射器454提供到不同天线452。每一发射器454首先把多天线发射处理器457提供的基带符号流转化成射频符号流,再提供到天线452。
在从所述第一通信设备450到所述第二通信设备410的传输中,所述第二通信设备410 处的功能类似于在从所述第二通信设备410到所述第一通信设备450的传输中所描述的所述第一通信设备450处的接收功能。每一接收器418通过其相应天线420接收射频信号,把接收到的射频信号转化成基带信号,并把基带信号提供到多天线接收处理器472和接收处理器470。接收处理器470和多天线接收处理器472共同实施L1层的功能。控制器/处理器475实施L2层功能。控制器/处理器475可与存储程序代码和数据的存储器476相关联。存储器476可称为计算机可读媒体。在从所述第一通信设备450到所述第二通信设备410的传输中,控制器/处理器475提供输送与逻辑信道之间的多路分用、包重组装、解密、标头解压缩、控制信号处理以恢复来自UE450的上层数据包。来自控制器/处理器475的上层数据包可被提供到核心网络。
作为一个实施例,所述第一通信设备450装置包括:至少一个处理器以及至少一个存储器,所述至少一个存储器包括计算机程序代码;所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用,所述第一通信设备450装置至少:通过空中接口接收第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
作为一个实施例,所述第一通信设备450包括:一种存储计算机可读指令程序的存储器,所述计算机可读指令程序在由至少一个处理器执行时产生动作,所述动作包括:通过空中接口接收第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
作为一个实施例,所述第二通信设备410装置包括:至少一个处理器以及至少一个存储器,所述至少一个存储器包括计算机程序代码;所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用。所述第二通信设备410装置至少:通过空中接口发送第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
作为一个实施例,所述第二通信设备410装置包括:一种存储计算机可读指令程序的存储器,所述计算机可读指令程序在由至少一个处理器执行时产生动作,所述动作包括:通过空中接口发送第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
作为一个实施例,所述第一通信设备450对应本申请中的第一节点。
作为一个实施例,所述第二通信设备410对应本申请中的第二节点。
作为一个实施例,{所述天线452,所述接收器454,所述多天线接收处理器458,所述接收处理器456}中的至少之一被用于通过空中接口接收本申请中的所述第一信息和本申请中的所述第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;{所述天线420,所述发射器418,所述多天线发射处理器471,所述发射处理器416}中的至少之一被用于通过空中接口发送本申请中的所述第一信息和本申请中的所述第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源。
作为一个实施例,{所述天线452,所述发射器454,所述多天线发射处理器457,所述发射处理器468}中的至少之一被用于发送本申请中的所述第一无线信号;{所述天线420,所 述接收器418,所述多天线接收处理器472,所述接收处理器470}中的至少之一被用于接收本申请中的所述第一无线信号。
作为一个实施例,{所述天线452,所述接收器454,所述多天线接收处理器458,所述接收处理器456}中的至少之一被用于接收本申请中的所述第二无线信号;{所述天线420,所述发射器418,所述多天线发射处理器471,所述发射处理器416}中的至少之一被用于发送本申请中的所述第二无线信号。
作为一个实施例,{所述天线452,所述发射器454,所述多天线发射处理器457,所述发射处理器468}中的至少之一被用于发送本申请中的所述第三无线信号;{所述天线420,所述接收器418,所述多天线接收处理器472,所述接收处理器470}中的至少之一被用于接收本申请中的所述第三无线信号。
作为一个实施例,{所述天线452,所述发射器454,所述多天线发射处理器457,所述发射处理器468}中的至少之一被用于发送本申请中的所述第四无线信号;{所述天线420,所述接收器418,所述多天线接收处理器472,所述接收处理器470}中的至少之一被用于接收本申请中的所述第四无线信号。
作为一个实施例,{所述天线452,所述接收器454,所述多天线接收处理器458,所述接收处理器456}中的至少之一被用于接收本申请中的所述第一信令;{所述天线420,所述发射器418,所述多天线发射处理器471,所述发射处理器416}中的至少之一被用于发送本申请中的所述第一信令。
实施例5
实施例5示例了一个第一无线信号的流程图,如附图5所示。在附图5中,第一节点U1与第二节点U2之间通过副链路进行通信;在不冲突的情况下,实施例5中的实施例和子实施例均可应用于实施例6。
对于
第一节点U1,在步骤S10中发送第一无线信号;在步骤S11中接收第一信令;在步骤S12中通过空中接口接收第一信息和第二信息;在步骤S13中接收第二无线信号;在步骤S14中发送第三无线信号。
对于
第二节点U2,在步骤S20中接收第一无线信号;在步骤S21中发送第一信令;在步骤S22中通过空中接口发送第一信息和第二信息;在步骤S23中发送第二无线信号;在步骤S24中接收第三无线信号。
实施例5中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源;所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时;用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源,所述第二信息被用于确定所述第三无线信号所占用的时域资源,所述第三无线信号指示所述第二无线信号是否被正确译码;所述第一信令包括所述第二无线信号的配置信息,所述第二无线信号的所述配置信息包括所述用于接收所述第二无线信号的时域资源。
作为一个实施例,所述第一无线信号包括DRS(Discovery Reference Signal,发现参考信号)。
作为一个实施例,所述第一无线信号在PSDCH(Physical Sidelink Discovery Channel,物理副链路发现信道)上传输。
作为一个实施例,所述第一无线信号包括PSSS(Primary Sidelink Synchronization Signal,主副链路同步信号)和SSSS(Secondary Sidelink Synchronization Signal,辅副链路同步信号)中的至少之一。
作为一个实施例,所述第一无线信号在PSBCH(Physical Sidelink Broadcasting Channel,物理副链路广播信道)上传输。
作为一个实施例,所述第一无线信号是广播的。
作为一个实施例,对于所述第一节点U1,所述第一时间单元的起始时刻是根据所述第一节点U1的发送定时确定的。
作为一个实施例,对于所述第二节点U2,所述第一时间单元的起始时刻是根据所述第一节点U1的发送定时确定的。
作为一个实施例,所述所述第一无线信号被用于确定时间单元级别的同步定时包括:所述第一无线信号的接收者包括第二节点U2,所述第二节点U2通过所述第一无线信号确定所述第一节点U1到所述第二节点U2链路的时间单元级别的同步定时。
作为一个实施例,所述第一时间单元的同步定时符合所述时间单元级别的同步定时包括:所述第一时间单元是根据所述第一无线信号所确定的所述时间单元级别的同步定时确定的。
作为一个实施例,所述第一时间单元的同步定时符合所述时间单元级别的同步定时包括:所述第二节点U2根据所述第一无线信号获得的所述时间单元级别的同步定时确定所述第一时间单元。
作为一个实施例,所述第二节点U2通过所述第一无线信号确定所述第一时间偏移值。
作为一个实施例,所述第二节点U2通过所述第一无线信号估计所述第一时间偏移值。
作为上述两个实施例的一个子实施例,所述第一时间偏移值与所述第一节点U1和所述第二节点U2之间的传输延迟(Transmission Delay)有关。
作为上述两个实施例的一个子实施例,所述第一时间偏移值与所述第一节点U1和所述第二节点U2之间的定时偏差(Timing Difference)有关。
作为一个实施例,所述第三无线信号是针对所述第二无线信号的HARQ-ACK(Hybrid Automatic Repeat reQuest Acknowledgment,混合自动重传请求确认)。
作为一个实施例,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源包括:所述第二无线信号占用的时间单元与所述第一信息所占用的时间单元相同。
作为一个实施例,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源包括:所述第二无线信号占用的最早的一个多载波符号所属的时间单元与所述第一信息占用的最早的一个多载波符号所属的时间单元相同。
作为一个实施例,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源包括:所述第二无线信号占用的最晚的一个多载波符号所属的时间单元与所述第一信息占用的最晚的一个多载波符号所属的时间单元相同。
作为一个实施例,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源包括:所述第二无线信号占用的时间单元是所述第一信息所占用的时间单元之后的第P个时间单元,所述P是正整数;所述P是固定的,或者所述P是通过动态信令指示。
作为一个实施例,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源包括:所述第二无线信号占用的最早的一个多载波符号所属的时间单元是所述第一信息占用的最早的一个多载波符号所属的时间单元之后的第P个时间单元,所述P是正整数;所述P是固定的,或者所述P是通过动态信令指示。
作为一个实施例,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源包括:所述第二无线信号占用的最晚的一个多载波符号所属的时间单元是所述第一信息占用的最晚的一个多载波符号所属的时间单元之后的第P个时间单元,所述P是正整数;所述P是固定的,或者所述P是通过动态信令指示。
作为一个实施例,如何确定所述第三无线信号所占用的时域资源是实现相关的,即不需要标准化的。
作为一个实施例,所述第一节点U1根据所述第二信息自行确定所述第三无线信号所占用的时域资源。
作为一个实施例,所述第二信息被用于确定所述第三无线信号所占用的时域资源包括: 所述第一节点U1尽可能调度所述第三无线信号所占用的时域资源属于所述第一时域资源。
作为一个实施例,所述第二信息被用于确定所述第三无线信号所占用的时域资源包括:所述第一节点U1尽可能将所述第三无线信号在所述第一时域资源中发送。
作为一个实施例,所述第二信息被用于确定所述第三无线信号所占用的时域资源包括:在不与其他调度冲突的前提下,所述第三无线信号所占用的时域资源属于所述第一时域资源。
作为该实施例的一个子实施例,所述其它调度是来自基站的调度。
作为该实施例的一个子实施例,所述其它调度是来自蜂窝网的调度。
作为一个实施例,所述第二信息被用于确定所述第三无线信号所占用的时域资源包括:在所述第一时域资源空闲的前提下,所述第三无线信号所占用的时域资源属于所述第一时域资源。
作为一个实施例,所述第二无线信号所占用的时间单元在时域的起始时刻是所述第一时刻。
作为一个实施例,所述第二无线信号所占用的时间单元在时域的截止时刻是所述第一时刻。
作为一个实施例,所述第二无线信号在PSSCH(Physical Sidelink Shared Information,物理副链路共享信息)上传输。
作为一个实施例,所述第三无线信号在PSSCH上传输。
作为一个实施例,所述第三无线信号在PSCCH(Physical Sidelink Control Information,物理副链路控制信息)上传输。
作为一个实施例,所述第一时域资源包括K1个子时域资源,所述第三无线信号所占用的所述时域资源是所述K1个子时域资源中的一个子时域资源,所述K1是大于1的正整数。
作为一个实施例,所述第三无线信号所占用的所述时域资源是所述第一时域资源。
作为一个实施例,所述第一信令包括所述第二无线信号的配置信息,所述所述第二无线信号的配置信息包括所述用于接收所述第二无线信号的时域资源。
作为一个实施例,所述第一信令是物理层信令。
作为一个实施例,所述第一信令是SCI(Sidelink Control Information,副链路控制信息)。
作为一个实施例,所述第一信令占用PSCCH。
作为一个实施例,所述第一信令被用于调度所述第二无线信号。
作为一个实施例,所述第一信令还包括跳频指示(Frequency Hopping Flag),资源块调度和资源跳跃分配(Resource Block Assignment and Hopping Resource Allocation),时间资源图样(Time Resource Pattern),MCS(Modulation and Coding Scheme,调制编码方案),定时提前指示(Timing Advance Indication)和组终点标识(Group Destination ID)中的至少之一。
作为一个实施例,所述第一信令还包括优先级(Priority),资源预留(Resource Reservation),初传和重传频域资源位置(Frequency Resource Location of Initial Transmission and Retransmission),初传重传时间间隔(Time Gap Between Initial Transmission and Retransmission),MCS和重传标识(Retransmission Index)中的至少之一。
作为一个实施例,所述第一时间偏移值与所述第二无线信号所采用的子载波间隔有关,
作为一个实施例,所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
作为一个实施例,所述第一时间偏移值与所述第一信令所采用的子载波间隔有关。
作为一个实施例,所述第一时间偏移值与给定无线信号所采用的子载波间隔有关是指:所述第一时间偏移值等于M个多载波符号在时域的持续时间,所述M个多载波符号中任意一个多载波符号所采用的子载波间隔和所述给定无线信号所采用的子载波间隔相同;所述给定 无线信号是所述第二无线信号,或者所述给定无线信号是所述第一信息所占用的无线信号,或者所述给定无线信号是所述第一信令。
作为一个实施例,所述第二节点U2根据检测解调参考信号判断所述第三无线信号是否被发送。
作为一个实施例,所述第二节点U2根据CRC(Cyclic Redundancy Check,循环冗余校验)检测判断所述第三无线信号是否被发送。
实施例6
实施例6示例了一个第四无线信号的流程图,如附图6所示。在附图6中,第一节点U3与第二节点U4之间通过副链路进行通信;在不冲突的情况下,实施例6中的实施例均可应用于实施例5。
对于
第一节点U3,在步骤S30中发送第一无线信号;在步骤S31中接收第一信令;在步骤S32中通过空中接口接收第一信息和第二信息;在步骤S33中发送第四无线信号。
对于
第二节点U4,在步骤S40中接收第一无线信号;在步骤S41中发送第一信令;在步骤S42中通过空中接口发送第一信息和第二信息;在步骤S43中接收第四无线信号。
实施例6中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源;所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时;所述第二信息被用于确定所述第四无线信号所占用的时域资源,所述第四无线信号所占用的所述时域资源被关联到所述第一时域资源;所述第一信令包括所述第四无线信号的配置信息,所述第四无线信号的所述配置信息包括所述用于发送所述第四无线信号的时域资源。
作为一个实施例,所述第二信息被用于确定所述第四无线信号所占用的时域资源包括:所述第二节点U4调度所述第四无线信号所占用的时域资源属于所述第一时域资源。
作为一个实施例,所述第二信息被用于确定所述第四无线信号所占用的时域资源包括:所述第一节点U3尽可能将所述第四无线信号在所述第一时域资源中发送。
作为一个实施例,所述第二信息被用于确定所述第四无线信号所占用的时域资源包括:在不与其他调度冲突的前提下,所述第四无线信号所占用的时域资源属于所述第一时域资源。
作为该实施例的一个子实施例,所述其它调度是来自基站的调度。
作为该实施例的一个子实施例,所述其它调度是来自蜂窝网的调度。
作为一个实施例,所述第二信息被用于确定所述第四无线信号所占用的时域资源包括:在所述第一时域资源空闲的前提下,所述第四无线信号所占用的时域资源属于所述第一时域资源。
作为一个实施例,所述所述第四无线信号所占用的所述时域资源被关联到所述第一时频资源包括:所述第一时域资源包括K1个子时域资源,所述第四无线信号所占用的所述时域资源是所述K1个子时域资源中的一个子时域资源,所述K1是大于1的正整数。
作为一个实施例,所述所述第四无线信号所占用的所述时域资源被关联到所述第一时频资源包括:所述第四无线信号所占用的所述时域资源是所述第一时域资源。
作为一个实施例,所述所述第四无线信号所占用的所述时域资源被关联到所述第一时频资源包括:所述第四无线信号所占用的所述时域资源属于所述第一时域资源。
作为一个实施例,所述第四无线信号在PSSCH上传输。
作为一个实施例,所述第四无线信号包括所述第二节点U4和所述第一节点U3之间的无线链路的CSI(Channel State Information,信道状态信息)。
作为一个实施例,所述第一信令包括所述第四无线信号的配置信息,所述所述第四无线信号的配置信息包括所述用于发送所述第四无线信号的时域资源。
作为一个实施例,所述第一信令被用于调度所述第四无线信号。
作为一个实施例,所述第一信令调度所述第一节点U3向所述第二节点U4发送所述第四 无线信号。
作为一个实施例,所述第二节点U4根据检测解调参考信号判断所述第四无线信号是否被发送。
作为一个实施例,所述第二节点U4根据CRC检测判断所述第四无线信号是否被发送。
实施例7
实施例7示例了一个采用传统定时提前方式设计的第一节点和第二节点的时序关系图,如附图7所示。在附图7中,图中的每个长方形代表一个时隙,时隙中的数字代表时隙序号,所述第二节点向所述第一节点发送TA以调整所述第一节点在PC-5链路上上行发送的起始时刻,上述方式虽然可以保证所述第二节点接收到的所有来自不同终端的无线信号在所述第二节点侧是对齐的,但是由于所述第一节点和所述第二节点并不能保证属于同一服务基站,若所述第一节点需要维系和所述第一节点的服务基站的上行同步,上述方式将会造成所述第一节点的Uu链路和PC-5链路产生碰撞。
具体的,如图7中所示,TA_1是第二节点为保证和第二节点的服务基站的上行同步而引入的定时提前;TA_2是第二节点为保证第一节点发送的PC-5链路上的上行无线信号和所述第二节点自身的上行定时对齐的定时提前;TA_3是第一节点原本为保证和第一节点的服务基站的上行同步而引入的定时提前,虚线框表示原本所述第二节点需要和所述第二节点的服务基站对齐的上行定时;可以看到,所述第一节点因为需要调整针对所述第二节点的TA_2,当第一节点在时隙#0发送PC-5链路的无线信号至第二节点,且在时隙#1发送Uu链路的无线信号至服务基站,上述定时提前的方式导致斜方格填充的部分碰撞。
实施例8
实施例8示例了采用第一时间偏移值设计的第一节点和第二节点的时序关系图,如附图8所示。在附图8中,图中的每个长方形代表一个时间单元,时间单元中的数字代表时隙序号,TA_1是第二节点和第二节点的服务基站之间的定时提前,TA_3是第一节点和第一节点的服务基站之间的定时提前,T_C是第二节点到第一节点的传输延迟,第二节点在时间单元#0发送第一信息,第一节点在图中所示的T1时刻接收完第一信息所对应的无线信号,T1延迟T2后所属的时间单元是本申请中的所述第一时间单元,随后第一节点根据第二信息的指示将时间单元#2之后的时间单元#N确定为所述第一时域资源所在的时间单元。
作为一个实施例,所述第一信息,所述第二信息和所述第二无线信号均在图中所示的时间单元#0被所述第一节点发送。
作为一个实施例,所述第二信息指示时间单元#N至时间单元#2之间的时间单元的个数。
作为一个实施例,所述第二信息指示(N-2),所述(N-2)表示所述第一时域资源所在的时间单元是所述第一时间单元之后的第(N-2)个时间单元。
实施例9
实施例9示例了采用另一个第一时间偏移值设计的第一节点和第二节点的时序关系图,如附图9所示。在附图9中,图中的每个长方形代表一个时间单元,时间单元中的数字代表时隙序号,TA_1是第二节点和第二节点的服务基站之间的定时提前,TA_3是第一节点和第一节点的服务基站之间的定时提前,T_C是第二节点到第一节点的传输延迟;图中的第一节点和第二节点分别对应各自的服务基站调整上行定时;第二节点在时间单元#0发送第一信息,第一节点在图中所示的T1时刻接收完第一信息所对应的无线信号,T1延迟T2后所属的时间单元是本申请中的所述第一时间单元,时间单元N1对应本申请中所述第一时刻所位于的时间单元,随后第一节点根据第二信息的指示将时间单元#N1之后的时间单元#N2确定为所述第一时域资源所在的时间单元。
作为一个实施例,所述第一信息和所述第二信息在图中所示的时间单元#0被所述第 一节点发送,所述第二无线信号在时间单元#N1被发送。
作为一个实施例,所述第二信息指示时间单元#N2至时间单元#N1之间的时间单元的个数。
作为一个实施例,所述第二信息指示(N2-N1),所述(N2-N1)表示所述第一时域资源所在的时间单元是所述第一时间单元之后的第(N2-N1)个时间单元。
作为一个实施例,所述第二信息还指示所述(N1-2)。
作为一个实施例,所述(N1-2)的值是固定的,或者所述(N1-2)的值是通过高层信令配置的。
实施例10
实施例10示例了第一节点通过第一无线信号确定第一时间偏移值的示意图,如附图10所示。在附图10中,所述第一节点和所述第二节点各自遵循服务基站的上行定时造成所述第一节点和所述第二节点之间的定时差是T_D;所述第一节点向所述第二节点发送第一无线信号,第一节点和第二节点的传输延迟是T_C,且第二节点知道第一节点在参考所述第一节点的服务基站的定时下发送所述第一无线信号的时间单元的序号;图中假设第一无线信号在第一节点参考的定时下的时间单元#1发送,第二节点在第二节点参考的定时下的时间单元#2向第一节点发送本申请中的所述第一信息。
如图中所示,第一节点根据第一无线信号可以估计出(T_D+T_C)的值;而对于第二节点而言,当第二节点在粗虚线框中收到第一信息时,只需根据第一信息的接收时刻再至少延迟(T_D-T_C)就可以保证延迟后的时刻位于时间单元#4中,随后第一节点根据时间单元#4为参考确定第一时域资源;例如图中所述的第一节点在时间单元#5向第二节点发送本申请中的所述第三无线信号或第四无线信号,而第二节点只需要在时间单元#5向前平移(T_D-T_C)时刻开始检测第三无线信号或第四无线信号即可。
考虑到V2X传输之间的距离较短,一般T_C的值相对T_D不会很大,因而当第二节点估计出(T_D+T_C)时,可以通过(T_D+T_C)值确定(T_D-T_C),且(T_D-T_C)是本申请中的所述第一时间偏移值的最小值,进而第一节点通过指示所述第一时间偏移值保证所述第一节点在参考所述第一节点的服务小区的上行同步下的向第二节点的无线发送的位置是可预测的。
实施例11
实施例11示例了一个第一时频资源的示意图,如附图11所示。在附图11中,所述第一时频资源占用的时域资源属于本申请中的所述第一时域资源,所述第一时域资源在时域占用一个时间单元,所述第一时频资源在频域占用多个子频带。
作为一个实施例,所述多个子频带在频域是离散的。
作为一个实施例,所述多个子频带中的任意一个子频带所占用的频带宽度是一个PRB(Physical Resource Block,物理资源块)所对应的频带宽度。
作为一个实施例,本申请中的所述第三无线信号在所述多个子频带中的一个子频带被发送。
作为一个实施例,本申请中的所述第四无线信号在所述多个子频带中的一个子频带被发送。
实施例12
实施例12示例了一个第一时域资源的示意图,如附图12所示。在附图12中,所述第一时域资源包括K1个子时域资源,所述K1个子时域资源中的任意一个子时域资源占用一个时间单元;所述K1是正整数。
作为一个实施例,所述K1个子时域资源在时域是离散的。
作为一个实施例,本申请中的所述第三无线信号在所述K1个子时域资源中的一个子时域资源中被发送。
作为一个实施例,本申请中的所述第四无线信号在所述K1个子时域资源中的一个子时域资源中被发送。
作为一个实施例,本申请中的所述第二信息相对于第一时刻指示第一时域资源是指:所述第二信息相对于所述第一时刻指示所述K1个子时域资源中在时域最早的一个子时域资源。
实施例13
实施例13示例了一个第一节点中的处理装置的结构框图,如附图13所示。附图13中,第一节点处理装置1300包括第一收发机1301,第一接收机1302和第一发射机1303。
第一收发机1301,通过空中接口接收第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;
第一接收机1302,接收第二无线信号;
第一发射机1303,发送第三无线信号;
实施例13中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源;用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源,所述第二信息被用于确定所述第三无线信号所占用的时域资源,所述第三无线信号指示所述第二无线信号是否被正确译码。
作为一个实施例,所述第一收发机1301还发送第一无线信号;所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时。
作为一个实施例,所述第一收发机1301还接收第一信令,所述第一信令包括所述第一信息和所述第二信息;所述第一信令包括所述第二无线信号的配置信息,所述所述第二无线信号的配置信息包括所述用于接收所述第二无线信号的时域资源。
作为一个实施例,所述第一时间偏移值与所述第二无线信号所采用的子载波间隔有关,或者所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
作为一个实施例,所述第一收发机1301包括实施例4中的天线452、接收器/发射器454、多天线接收处理器458、多天线发射处理器457、接收处理器456、发射处理器468、控制器/处理器459中的至少前6者。
作为一个实施例,所述第一接收机1302包括实施例4中的天线452、接收器454、多天线接收处理器458、接收处理器456、控制器/处理器459中的至少前4者。
作为一个实施例,所述第一发射机1303包括实施例4中的天线452、发射器454、多天线发射处理器457、发射处理器468、控制器/处理器459中的至少前4者。
实施例14
实施例14示例了一个第二节点中的处理装置的结构框图,如附图14所示。附图14中,第二节点处理装置1400包括第二收发机1401,第二发射机1402和第二接收机1403。
第二收发机1401,通过空中接口发送第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;
第二发射机1402,发送第二无线信号;
第二接收机1403,接收第三无线信号;
实施例14中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源;用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源,所述第二信息被用于确定所述第三无线信号所占用的时域资源,所述第三无线信号指示所述第二无线信号是否被正确译码。
作为一个实施例,所述第二收发机1401还接收第一无线信号;所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时。
作为一个实施例,所述第二收发机1401还发送第一信令,所述第一信令包括所述第一信息和所述第二信息;所述第一信令包括所述第二无线信号的配置信息,所述所述第二无线信号的配置信息包括所述用于接收所述第二无线信号的时域资源。
作为一个实施例,所述第一时间偏移值与所述第二无线信号所采用的子载波间隔有关,或者所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
作为一个实施例,所述第二收发机1401包括实施例4中的天线420、发射器/接收器418、多天线发射处理器471、多天线接收处理器472、发射处理器416、接收处理器470、控制器/处理器475中的至少前6者。
作为一个实施例,所述第二发射机1402包括实施例4中的天线420、发射器418、多天线发射处理器471、发射处理器416、控制器/处理器475中的至少前6者。
作为一个实施例,所述第二接收机1403包括实施例4中的天线420、接收器418、多天线接收处理器472、接收处理器470、控制器/处理器475中的至少前4者。
实施例15
实施例15示例了另一个第一节点中的处理装置的结构框图,如附图15所示。附图15中,第一节点处理装置1500包括第三收发机1501和第三发射机机1502。
第三收发机1501,通过空中接口接收第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;
第三发射机1502,发送第四无线信号;
实施例15中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源;所述第二信息被用于确定所述第四无线信号所占用的时域资源,所述第四无线信号所占用的所述时域资源被关联到所述第一时域资源。
作为一个实施例,所述第三收发机1501还发送第一无线信号;所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时。
作为一个实施例,所述第三收发机1501还接收第一信令,所述第一信令包括所述第一信息和所述第二信息;所述第一信令包括所述第四无线信号的配置信息,所述第四无线信号的所述配置信息包括所述用于发送所述第四无线信号的时域资源。
作为一个实施例,所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
作为一个实施例,所述第三收发机1501包括实施例4中的天线452、接收器/发射器454、多天线接收处理器458、多天线发射处理器457、接收处理器456、发射处理器468、控制器/处理器459中的至少前6者。
作为一个实施例,所述第三发射机1502包括实施例4中的天线452、发射器454、多天线发射处理器457、发射处理器468、控制器/处理器459中的至少前4者。
实施例16
实施例16示例了另一个第二节点中的处理装置的结构框图,如附图16所示。附图16中,第二节点处理装置1600包括第四收发机1601和第三接收机1602。
第四收发机1601,通过空中接口发送第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;
第三接收机1602,接收第四无线信号;
实施例16中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源;所述第二信息被用于确定所述第四无线信号所占用的时域资源,所述第四无线信号所占用的所述时域资源被关联到所述第一时域资源。
作为一个实施例,所述第四收发机1601还接收第一无线信号;所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时。
作为一个实施例,所述第四收发机1601还发送第一信令,所述第一信令包括所述第一信息和所述第二信息;所述第一信令包括所述第四无线信号的配置信息,所述第四无线信号的所述配置信息包括所述用于发送所述第四无线信号的时域资源。
作为一个实施例,所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
作为一个实施例,所述第四收发机1601包括实施例4中的天线420、发射器/接收器418、多天线发射处理器471、多天线接收处理器472、发射处理器416、接收处理器470、控制器/处理器475中的至少前6者。
作为一个实施例,第三接收机1602包括实施例4中的天线420、接收器418、多天线接收处理器472、接收处理器470、控制器/处理器475中的至少前4者。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可以通过程序来指令相关硬件完成,所述程序可以存储于计算机可读存储介质中,如只读存储器,硬盘或者光盘等。可选的,上述实施例的全部或部分步骤也可以使用一个或者多个集成电路来实现。相应的,上述实施例中的各模块单元,可以采用硬件形式实现,也可以由软件功能模块的形式实现,本申请不限于任何特定形式的软件和硬件的结合。本申请中的第一节点包括但不限于手机,平板电脑,笔记本,上网卡,低功耗设备,eMTC设备,NB-IoT设备,车载通信设备,飞行器,飞机,无人机,遥控飞机等无线通信设备。本申请中的第二节点包括但不限于手机,平板电脑,笔记本,上网卡,低功耗设备,eMTC设备,NB-IoT设备,车载通信设备,飞行器,飞机,无人机,遥控飞机等无线通信设备。本申请中的用户设备或者UE或者终端包括但不限于手机,平板电脑,笔记本,上网卡,低功耗设备,eMTC设备,NB-IoT设备,车载通信设备,飞行器,飞机,无人机,遥控飞机等无线通信设备。本申请中的基站设备或者基站或者网络侧设备包括但不限于宏蜂窝基站,微蜂窝基站,家庭基站,中继基站,eNB,gNB,传输接收节点TRP,GNSS,中继卫星,卫星基站,空中基站等无线通信设备。
以上所述,仅为本申请的较佳实施例而已,并非用于限定本申请的保护范围。凡在本申请的精神和原则之内,所做的任何修改,等同替换,改进等,均应包含在本申请的保护范围之内。
Claims (20)
- 一种被用于无线通信的第一节点中的方法,其特征在于包括:通过空中接口接收第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;其中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
- 根据权利要求1所述的方法,其特征在于包括:发送第一无线信号;其中,所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时。
- 根据权利要求1所述的方法,其特征在于包括:接收第二无线信号;发送第三无线信号;其中,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源,所述第二信息被用于确定所述第三无线信号所占用的时域资源,所述第三无线信号指示所述第二无线信号是否被正确译码;或者,其特征在于包括:发送第四无线信号;其中,所述第二信息被用于确定所述第四无线信号所占用的时域资源,所述第四无线信号所占用的所述时域资源被关联到所述第一时域资源。
- 根据权利要求3所述的方法,其特征在于包括:接收第一信令,所述第一信令包括所述第一信息和所述第二信息;其中,所述第一信令包括所述第二无线信号的配置信息,所述第二无线信号的所述配置信息包括所述用于接收所述第二无线信号的时域资源;或者所述第一信令包括所述第四无线信号的配置信息,所述第四无线信号的所述配置信息包括所述用于发送所述第四无线信号的时域资源。
- 根据权利要求1所述的方法,其特征在于,所述第一时间偏移值与所述第二无线信号所采用的子载波间隔有关,或者所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
- 一种被用于无线通信的第二节点中的方法,其特征在于包括:通过空中接口发送第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;其中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
- 根据权利要求6所述的方法,其特征在于包括:接收第一无线信号;其中,所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时。
- 根据权利要求6所述的方法,其特征在于包括:发送第二无线信号;接收第三无线信号;其中,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源,所述第二信息被用于确定所述第三无线信号所占用的时域资源,所述第三无线信号指示所述第二无线信号是否被正确译码。或者,其特征在于包括:接收第四无线信号;其中,所述第二信息被用于确定所述第四无线信号所占用的时域资源,所述第四无线信号所占用的所述时域资源被关联到所述第一时域资源。
- 根据权利要求6所述的方法,其特征在于包括:发送第一信令,所述第一信令包括所述第一信息和所述第二信息;其中,所述第一信令包括所述第二无线信号的配置信息,所述第二无线信号的所述配置信息包括所述用于接收所述第二无线信号的时域资源;或者所述第一信令包括所述第四无线信号的配置信息,所述第四无线信号的所述配置信息包括所述用于发送所述第四无线信号的时域资源。
- 根据权利要求6所述的方法,其特征在于,所述第一时间偏移值与所述第二无线信号所采用的子载波间隔有关,或者所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
- 一种被用于无线通信的第一节点,其特征在于包括:第一收发机,通过空中接口接收第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;其中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
- 根据权利要求11所述的第一节点,其特征在于,所述第一收发机发送第一无线信号;所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时。
- 根据权利要求11所述的第一节点,其特征在于包括:第一接收机,接收第二无线信号;第一发射机,发送第三无线信号;其中,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源,所述第二信息被用于确定所述第三无线信号所占用的时域资源,所述第三无线信号指示所述第二无线信号是否被正确译码;或者,其特征在于包括:第三发射机,发送第四无线信号;其中,所述第二信息被用于确定所述第四无线信号所占用的时域资源,所述第四无线信号所占用的所述时域资源被关联到所述第一时域资源。
- 根据权利要求13所述的第一节点,其特征在于,所述第一收发机接收第一信令,所述第一信令包括所述第一信息和所述第二信息;所述第一信令包括所述第二无线信号的配置信息,所述第二无线信号的所述配置信息包括所述用于接收所述第二无线信号的时域资源;或者所述第一信令包括所述第四无线信号的配置信息,所述第四无线信号的所述配置信息包括所述用于发送所述第四无线信号的时域资源。
- 根据权利要求11所述的第一节点,其特征在于,所述第一时间偏移值与所述第二无线信号所采用的子载波间隔有关,或者所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
- 一种被用于无线通信的第二节点,其特征在于包括:第二收发机,通过空中接口发送第一信息和第二信息,所述第一信息指示第一时间偏移值,所述第二信息相对于第一时刻指示第一时域资源;其中,所述第一时刻被关联到第一时间单元,所述第一时间单元是第一接收时间延迟所述第一时间偏移值之后所属的时间单元,所述第一接收时间被关联到用于接收所述第一信息的时域资源。
- 根据权利要求16所述的第二节点,其特征在于,所述第二收发机接收第一无线信号; 所述第一无线信号被用于确定时间单元级别的同步定时,所述第一时间单元的同步定时符合所述时间单元级别的同步定时。
- 根据权利要求16所述的第二节点,其特征在于包括:第二发射机,发送第二无线信号;第二接收机,接收第三无线信号;其中,用于接收所述第二无线信号的时域资源被关联到所述用于接收所述第一信息的时域资源,所述第二信息被用于确定所述第三无线信号所占用的时域资源,所述第三无线信号指示所述第二无线信号是否被正确译码;或者,其特征在于包括:第三接收机,接收第四无线信号;其中,所述第二信息被用于确定所述第四无线信号所占用的时域资源,所述第四无线信号所占用的所述时域资源被关联到所述第一时域资源。
- 根据权利要求18所述的第二节点,其特征在于,所述第二收发机发送第一信令,所述第一信令包括所述第一信息和所述第二信息;所述第一信令包括所述第二无线信号的配置信息,所述第二无线信号的所述配置信息包括所述用于接收所述第二无线信号的时域资源;或者所述第一信令包括所述第四无线信号的配置信息,所述第四无线信号的所述配置信息包括所述用于发送所述第四无线信号的时域资源。
- 根据权利要求16所述的第二节点,其特征在于,所述第一时间偏移值与所述第二无线信号所采用的子载波间隔有关,或者所述第一时间偏移值与所述第一信息所占用的无线信号所采用的子载波间隔有关。
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