WO2021134796A1 - 无线通信的方法和终端设备 - Google Patents
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- WO2021134796A1 WO2021134796A1 PCT/CN2020/070330 CN2020070330W WO2021134796A1 WO 2021134796 A1 WO2021134796 A1 WO 2021134796A1 CN 2020070330 W CN2020070330 W CN 2020070330W WO 2021134796 A1 WO2021134796 A1 WO 2021134796A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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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
- H04L5/0055—Physical resource allocation for ACK/NACK
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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
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/23—Manipulation of direct-mode connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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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
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
Definitions
- the embodiments of the present application relate to the field of communications, and in particular to a method and terminal device for wireless communication.
- the Internet of Vehicles system is based on the Long Term Evaluation Device to Device (LTE D2D) transmission technology of Sidelink (SL), and the communication data in the traditional LTE system is received or sent through the base station. The method is different.
- the Internet of Vehicles system adopts terminal-to-terminal direct communication, so it has higher spectrum efficiency and lower transmission delay.
- the side-line feedback channel is introduced.
- the receiving end terminal can send the side line feedback information to the sending end terminal, so that the sending end terminal can follow the side line feedback information.
- Line feedback information determines whether to retransmit.
- the Internet of Vehicles system supports multi-carrier side-line transmission.
- multiple carriers can transmit different side-line data, which can improve the throughput of the system, or multiple carriers can transmit the same side-line data, which can improve data reliability.
- Sex performing side-line feedback to improve transmission reliability is a problem that needs to be solved urgently.
- the embodiments of the present application provide a wireless communication method and terminal equipment, which can implement side-line feedback of side-line transmission on multiple carriers.
- a wireless communication method including: a first terminal receives N side data channels sent by a second terminal on N frequency domain resources, wherein the N frequency domain resources and the One-to-one correspondence between N side row data channels, where N is an integer greater than 1, and the frequency domain resource is a carrier or a bandwidth part BWP;
- the first terminal sends the sideline feedback information of the N sideline data channels to the second terminal on M frequency domain resources, where the M is a positive integer and M ⁇ N.
- a wireless communication method including: a first terminal receives N side data channels sent by a second terminal on N frequency domain resources, where the N frequency domain resources and the One-to-one correspondence between N side row data channels, where N is an integer greater than 1, and the frequency domain resource is a carrier or a bandwidth part BWP;
- the first terminal determines M frequency domain resources among the N frequency domain resources, where M is a positive integer, and M ⁇ N;
- the first terminal sends the sideline feedback information of the N sideline data channels to the second terminal on the M frequency domain resources.
- a terminal device which is used to execute the foregoing first aspect or any possible implementation of the first aspect.
- the terminal device includes a unit for executing the foregoing first aspect or the method in any possible implementation manner of the first aspect.
- a terminal device which is used to execute the foregoing second aspect or the method in any possible implementation manner of the second aspect.
- the terminal device includes a unit for executing the foregoing second aspect or the method in any possible implementation manner of the second aspect.
- a terminal device in a fifth aspect, includes a processor and a memory.
- the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each of its implementation modes.
- a terminal device in a sixth aspect, includes a processor and a memory.
- the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or its implementation manners.
- a chip is provided for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
- the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first aspect to the second aspect or any of the implementations thereof method.
- a computer-readable storage medium for storing a computer program that enables a computer to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.
- a computer program product including computer program instructions that cause a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.
- a computer program which when running on a computer, causes the computer to execute any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
- the first terminal can receive the PSSCH on multiple carriers, and further can combine feedback information corresponding to multiple PSSCHs into one PSFCH for feedback, which is beneficial to reducing the overhead of side-line feedback.
- Fig. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.
- Figure 2 is a schematic diagram of several communication modes between terminal devices.
- Fig. 3 is a schematic diagram of the structure of a PSFCH carrying 1-bit feedback information.
- Fig. 4 is a schematic diagram of an example of lateral feedback.
- FIG. 5 is a schematic diagram of a wireless communication method provided by an embodiment of the present application.
- 6 to 10 are schematic diagrams of lateral feedback according to an embodiment of the present application.
- Fig. 11 is a schematic diagram of carrier selection based on PSSCH transmission time.
- FIG. 12 is a schematic diagram of another wireless communication method provided by an embodiment of the present application.
- FIG. 13 is a schematic block diagram of a terminal device according to an embodiment of the present application.
- FIG. 14 is a schematic block diagram of another terminal device provided by an embodiment of the present application.
- FIG. 15 is a schematic block diagram of a communication device according to another embodiment of the present application.
- FIG. 16 is a schematic block diagram of a chip provided by an embodiment of the present application.
- D2D Device to Device
- a car networking system based on Long Term Evolution (LTE) for D2D communication or NR-V2X system.
- LTE Long Term Evolution
- NR-V2X NR-V2X
- the communication system based on the Internet of Vehicles system may be the Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division) system.
- GSM Global System of Mobile Communication
- CDMA Code Division Multiple Access
- Wideband Code Division Wideband Code Division Multiple Access
- Multiple Access (WCDMA) system General Packet Radio Service (GPRS), LTE system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), General Mobile communication system (Universal Mobile Telecommunication System, UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5G New Radio (NR) system, etc.
- GPRS General Packet Radio Service
- LTE LTE Frequency Division Duplex
- TDD Time Division Duplex
- UMTS General Mobile communication system
- WiMAX Worldwide Interoperability for Microwave Access
- 5G New Radio (NR) system etc.
- the network equipment in the embodiments of this application can be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network side devices (gNB) in the NR network, or network devices in the future evolution of the public land mobile network (Public Land Mobile Network, PLMN), etc.
- BTS Base Transceiver Station
- NodeB, NB base station
- LTE Long Term Evolutional Node B, eNB or eNodeB
- CRAN Cloud Radio Access Network
- the network equipment can be a mobile switching center, a relay station, an access
- the terminal device in the embodiment of the present application may be a terminal device capable of implementing D2D communication.
- it can be a vehicle-mounted terminal device, a terminal device in an LTE system (LTE UE), a terminal device in an NR network (NR UE), or a public land mobile communication network (Public Land Mobile Network, PLMN) that will evolve in the future
- LTE UE LTE system
- NR UE NR network
- PLMN Public Land Mobile Network
- V2V vehicle to Vehicle
- V2X vehicle to Everything
- X can generally refer to any device with wireless receiving and sending capabilities, such as but not limited to slow-moving wireless devices, fast-moving vehicle-mounted devices, or network control nodes with wireless transmitting and receiving capabilities.
- the embodiment of the present invention is mainly applied to the scenario of V2X communication, but can also be applied to any other D2D communication scenario, which is not limited in the embodiment of the present application.
- Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
- Figure 1 exemplarily shows one network device and two terminal devices.
- the wireless communication system in the embodiment of the present application may include multiple network devices and the coverage of each network device may include other numbers
- the terminal device is not limited in this embodiment of the application.
- the wireless communication system may also include other networks such as Mobile Management Entity (MME), Serving Gateway (S-GW), Packet Data Network Gateway (P-GW), etc. Entity, or, the wireless communication system may also include session management function (Session Management Function, SMF), unified data management (Unified Data Management, UDM), authentication server function (Authentication Server Function, AUSF) and other network entities.
- MME Mobile Management Entity
- S-GW Serving Gateway
- P-GW Packet Data Network Gateway
- SMF Session Management Function
- UDM Unified Data Management
- AUSF Authentication Server Function
- terminal devices can use mode A and mode B to communicate.
- the terminal device 121 and the terminal device 122 may communicate in a D2D communication mode.
- the terminal device 121 and the terminal device 122 directly communicate through a D2D link, that is, a side link (SL).
- a D2D link that is, a side link (SL).
- the transmission resources of the terminal equipment are allocated by the base station, and the terminal equipment can send data on the SL according to the resources allocated by the base station.
- the base station can allocate a single transmission resource for the terminal device, or can allocate a semi-static transmission resource for the terminal.
- the terminal device autonomously selects transmission resources from the SL resources. Specifically, the terminal device obtains the available transmission resources by means of interception in the resource pool, or the terminal device randomly selects a transmission resource from the resource pool.
- mode 1 and mode 2 are introduced in NR-V2X, where mode 1 means that the side link transmission resources of the terminal device are allocated by the base station, and the base station uses the mode A and mode 1 to allocate the side link transmission resources
- the method can be different, for example, it can be one using dynamic scheduling, the other using semi-static scheduling, or semi-static plus dynamic scheduling, etc.
- Mode 2 means that the side link transmission resource of the terminal device is selected by the terminal of.
- FIG. 2(a) shows the unicast transmission between UE1 and UE2; in the multicast transmission mode, the receiving end terminal is all terminals in a communication group, or all terminals within a certain transmission distance, as shown in Figure 2.
- UE1, UE2, UE3, and UE4 form a communication group.
- the other terminal devices in the communication group are all receiving end terminals; in the broadcast transmission mode, the receiving end can be any For a terminal, as shown in Figure 2(c), UE1 is a transmitting terminal, and other terminals around it can be receiving terminals.
- a side-line feedback channel is introduced, for example, a Physical Sidelink Feedback Channel (PSFCH).
- PSFCH Physical Sidelink Feedback Channel
- the sender terminal sends sideline data (including PSCCH and PSSCH) to the receiver terminal, and the receiver terminal can send Hybrid Automatic Repeat reQuest (HARQ) sideline feedback information to the sender terminal.
- HARQ Hybrid Automatic Repeat reQuest
- the transmitting end terminal may determine whether retransmission is required according to the sideline feedback information of the receiving end terminal, where the HARQ sideline feedback information may be carried in the sideline feedback channel.
- the PSFCH only carries 1 bit of side-line feedback information, and occupies two time-domain symbols in the time domain.
- the two time-domain symbols carry the same side-line feedback information
- the data on one time-domain symbol is the other.
- the repetition of data on a time domain symbol for example, the second time domain symbol is used to carry side-line feedback information
- the data on the first symbol is a copy of the data on the second symbol
- the first symbol is used
- the PSFCH occupies a physical resource block (Physical Resource Block, PRB) in the frequency domain.
- PRB Physical Resource Block
- Figure 3 is an example of the structure of PSFCH and Physical Sidelink Shared Channel (PSSCH)/Physical Sidelink Control Channel (PSCCH). Specifically, Figure 3 illustrates a time slot The position of the time domain symbols occupied by PSFCH, PSCCH and PSSCH in the PSFCH, PSCCH and PSSCH. Among them, in a slot, the last symbol (immediate domain symbol 13) can be used as a guard interval (Guard Period, GP), and the penultimate symbol ( The time domain symbol 12) is used for PSFCH transmission.
- the data on the third-to-last symbol is the same as the data on the second-to-last symbol, which is used as AGC, and the fourth-to-last symbol is also used as GP.
- PSCCH occupies 3 time domain symbols, the time domain symbols 1, 2 and 3, and the time domain symbols 1 to 9 is used to transmit PSSCH.
- PSCCH and PSSCH occupy different frequency domain resources.
- the PSSCH transmitted in time slots 2, 3, 4, and 5, and its corresponding side row feedback information is transmitted in time slot 7. Therefore, time slot ⁇ 2, 3, 4, 5 ⁇ can be regarded as a time slot Set, the PSSCH transmitted in the set of time slots, and the corresponding PSFCH can be transmitted in the same time slot.
- NR-V2X In the NR-V2X system, consider the introduction of multi-carrier side-line transmission. For example, multiple carriers can transmit different side-line data, which can improve the throughput of the system, or multiple carriers can transmit the same side-line data, which can improve The reliability of the data, in this case, how to carry out side feedback is a problem that needs to be solved urgently.
- FIG. 5 is a schematic flowchart of a wireless communication method 200 according to an embodiment of this application.
- the method 200 may be executed by the terminal device in the communication system shown in FIG. 1.
- the method 200 may include at least part of the following content:
- the first terminal receives N sideline data channels sent by the second terminal on N frequency domain resources, where the N frequency domain resources correspond to the N sideline data channels in a one-to-one relationship, and the N Is an integer greater than 1, the frequency domain resource is a carrier or a bandwidth part BWP;
- S220 The first terminal sends sideline feedback information of the N sideline data channels to the second terminal on M frequency domain resources, where the M is a positive integer and M ⁇ N.
- the embodiments of the present application are also applicable to sideline transmission on multiple frequency domain resources and other scenarios where sideline feedback is required.
- the first terminal may also be on the N frequency domain resources.
- Receive N sideline reference signals and further send the measurement results of the N sideline reference channels to the second terminal on M frequency domain resources.
- the side-line reference signal in the embodiment of the present application may include, for example, a side-line synchronization signal (Sidelink Synchronization Signal, SLSS), a side-line synchronization signal block (Sidelink Synchronization Signal Block, S-SSB), and a side-line channel state information reference Signal (Sidelink Channel State Information Reference Signal, SL CSI-RS), Demodulation Reference Signal (Demodulation Reference Signal, DMRS), where the S-SSB may include the Sidelink Primary Synchronization Signal (S-PSS) And sidelink Secondary Synchronization Signal (S-SSS), etc.; demodulation reference signals include PSSCH-DMRS, PSCCH DMRS and PSBCH DMRS.
- SLSS Sidelink Synchronization Signal
- S-SSB Sidelink Synchronization Signal Block
- S-SSB Sidelink Channel State Information Reference Signal
- DMRS Demodulation Reference Signal
- demodulation reference signals include PSSCH-DMRS, PSCCH DMRS and PSBCH DM
- the N frequency domain resources may be N carriers or N bandwidth parts (Bandwidth, BWP), or may also be other frequency domain units.
- the M frequency domain resources may be M carriers or M BWPs, or other frequency domain units.
- the N frequency domain resources are N carriers and the M frequency domain units are M carriers as an example. The application embodiment is not limited to this.
- the embodiment of the present application does not limit the relationship between the M carriers and the N carriers.
- the M carriers may be M of the N carriers, or the N Each carrier may correspond to K carriers, the K carriers and the N carriers are at least partially different, and the M carriers are M of the K carriers, where K ⁇ M.
- the first terminal may receive the side row data channel sent by the second terminal on N carriers, for example, PSSCH, and further, the first terminal may send the N to the second terminal on M carriers.
- the sideline feedback information of the PSSCH received on two carriers that is, the first terminal can feed back the sideline feedback information of N PSSCHs, so the second terminal can determine whether to proceed according to the sideline feedback information of the N PSSCHs.
- PSSCH retransmission
- the M is 1, and the first terminal may send a sideline feedback channel on one carrier, for example, a physical sidelink feedback channel (PSFCH), so The one side row feedback channel carries the side row feedback information of the N PSSCHs.
- a sideline feedback channel on one carrier, for example, a physical sidelink feedback channel (PSFCH)
- PSFCH physical sidelink feedback channel
- the first terminal may send a sideline feedback channel on each of the M carriers, for example, PSFCH, each sideline
- the feedback channel carries the sideline feedback information of the N PSSCHs, that is, the first terminal can send the sideline feedback channel to the second terminal through multiple carriers, so that the reliability of the PSFCH can be improved.
- the embodiment of the present application does not specifically limit the number of bits occupied by the side row feedback information corresponding to the side row data channel.
- the side row feedback information corresponding to each side row data channel may be ACK or NACK. , That is, it occupies 1 bit.
- the side row feedback information corresponding to the side row data channel is 1 bit feedback information as an example for description, but the embodiment of the present application is not limited to this.
- the same data is transmitted in the N PSSCHs, that is, the second terminal may perform data transmission in a replication manner.
- the side row feedback information of the N PSSCHs may be one side row feedback information corresponding to the same data, that is, the N PSSCHs may correspond to one side row feedback information.
- one side row feedback information corresponding to the N PSSCHs is 1 bit. If one PSSCH transmits 2 TBs, each TB corresponds to 1 bit side row feedback information, and the N PSSCHs correspond to One side row feedback information is 2 bits, or, for a CBG-based feedback mode, one CBG corresponds to 1 bit side row feedback information, and the number of bits of one side row feedback information corresponding to the N PSSCHs is the number of CBGs.
- the one side-line feedback information may be determined according to the decoding result of the combined decoding of the N PSSCHs; or, in other embodiments, the side-line feedback information of the N PSSCHs may also include The side row feedback information corresponding to each PSSCH of the N PSSCHs, where the side row feedback information corresponding to each PSSCH may be determined according to the decoding result of each PSSCH.
- the N carriers include carrier 0 and carrier 1.
- the first terminal may receive PSSCH1 on carrier 0 and PSSCH2 on carrier 1, and the same data, such as TB1, is transmitted in PSSCH1 and PSSCH2, optionally , What is transmitted on carrier 0 and carrier 1 are different redundancy versions of the data.
- the first terminal may perform combined processing on the data carried on PSSCH1 and PSSCH2, such as combined decoding. If the decoding is successful, it will feed back ACK, otherwise it will feed back NACK. It is the same data, only one side-line feedback information needs to be transmitted, that is, only 1 bit is needed.
- the first terminal may transmit the one side feedback information for the PSSCH1 and PSSCH2 on carrier 0, or the first terminal may transmit on carrier 1 for all
- the one side-line feedback information of the PSSCH1 and PSSCH2 or, as shown in FIG. 7, the one side-line feedback information can also be transmitted on both carriers, which can improve the reliability of the side-line feedback.
- the first terminal may separately process the data carried on the PSSCH1 and PSSCH2, for example, decode them separately, and determine the corresponding side-line feedback information according to the respective decoding results.
- the first terminal may feed back each data separately.
- the first side row feedback channel is sent on carrier 0, and the first side row feedback channel includes the side row of PSSCH1.
- the second side-line feedback channel is sent on carrier 1.
- the second side-line feedback channel includes the side-line feedback information of PSSCH2, that is, each side-line feedback channel includes 1-bit feedback information; or, in other
- the first terminal may perform combined feedback on each data.
- the first terminal may send a side-line feedback channel on carrier 0 and/or carrier 1, and the side-line feedback channel may include all
- the side-line feedback information corresponding to the PSSCH1 and PSSCH2 respectively, that is, the side-line feedback channel may include 2-bit feedback information. Since PSSCH1 and PSSCH2 carry the same data, namely TB1, for the receiving end, if at least one bit in the 2-bit sideline feedback information is ACK, it can be considered that the TB1 is received correctly.
- the N PSSCHs transmit different data, that is, the second terminal may use multiplexing for data transmission.
- the side-line feedback information of the N PSSCHs may include the side-line feedback information corresponding to each data in the different data, where the side-line feedback information corresponding to each data may be based on each data.
- the decoding result of each PSSCH is determined.
- the first terminal may perform combined feedback on the N PSSCHs, for example, may send side feedback information of each of the N PSSCHs through each of the M carriers, That is, each carrier transmits a side row feedback channel, the side row feedback channel is used to carry N side row feedback information, corresponding to the N PSSCH, that is, the side row feedback channel transmitted on each carrier carries N bits Feedback from the sideline.
- the first terminal may also separately feed back the N PSSCHs.
- the side-line feedback information corresponding to each PSSCH may be transmitted through the carrier corresponding to each PSSCH.
- the N carriers include carrier 0 and carrier 1.
- the first terminal may receive PSSCH1 on carrier 0 and PSSCH2 on carrier 1.
- PSSCH1 and PSSCH2 Different data is transmitted in PSSCH1 and PSSCH2, for example, PSSCH1 carries TB1 , PSSCH2 carries TB2.
- the first terminal may separately process the data carried on the PSSCH1 and PSSCH2, for example, decode them separately, and determine the corresponding side-line feedback information according to the respective decoding results. For example, if PSSCH1 is detected successfully, ACK is fed back, otherwise NACK is fed back, similar to PSSCH2. Since PSSCH1 and PSSCH2 transmit different data, side-line feedback information for each data needs to be fed back, that is, 2-bit side-line feedback information is required.
- the first terminal may perform combined feedback on each data.
- the first terminal may send a side-line feedback channel on carrier 0, and the side-line feedback channel may include all
- the side-line feedback information corresponding to the PSSCH1 and PSSCH2 respectively that is, the side-line feedback channel may include 2-bit feedback information, or the side-line feedback channel may also be sent on carrier 1, or, as shown in FIG. 10,
- the first terminal may also send the side-line feedback channels on both carrier 0 and carrier 1, and each side-line feedback channel includes 2-bit side-line feedback information, which is beneficial to improve the reliability of the side-line feedback channel.
- the first terminal may also feed back each piece of data separately.
- the first side row feedback channel is sent on carrier 0 and the first side row feedback channel includes PSSCH1.
- the second side-line feedback channel includes the side-line feedback information of PSSCH2, that is, each side-line feedback channel includes 1 bit of feedback information.
- the side row feedback channel carries 1 or more bits of feedback information.
- the side-line feedback channel with multi-bit feedback information is recorded as the second-type side-line feedback channel, which is different from the channel design of the PSFCH carrying 1-bit side-line feedback information shown in FIG. 3.
- the second type of side row feedback channel occupies all time domain symbols that can be used for side row transmission in one time slot.
- the last time-domain symbol among all time-domain symbols that can be used for side-line transmission in a time slot is not used to transmit the second type of side-line feedback channel, for example, the last time-domain symbol is used as GP.
- the first time domain symbol among all time domain symbols that can be used for side-line transmission in a slot is used as AGC.
- the data on the first time-domain symbol among all time-domain symbols that can be used for side-line transmission in a time slot is the data on the second time-domain symbol used for side-line transmission in the time slot
- the data on the first time domain symbol and the second time domain symbol that can be used for side-line transmission are the same.
- the second type of side feedback channel occupies M PRBs, where M is a positive integer, that is, the second type of side feedback channel may occupy one or Multiple PRBs.
- the second type of side-line feedback channel may occupy all time-domain symbols that can be used for side-line transmission in a time slot in the time domain, and occupy one or more symbols in the frequency domain. RPB.
- the second-type side-line feedback channel may occupy the second-to-last and third-to-last of all time-domain symbols that can be used for side-line transmission in a time slot in the time domain.
- the first terminal if the first terminal transmits the feedback information of the N PSSCHs on some of the N carriers, the first terminal also needs to perform carrier selection in order to select M carriers are determined among the two carriers, and the M is less than N.
- the first terminal may use the channel busy rate (CBR) of the carrier, the measurement result of the side row data channel, the carrier index of the N carriers, and the The receiving time of the N sideline data channels and at least one item of the first information determine the M carriers, where the first information may be used to indicate a target carrier for transmitting sideline feedback information.
- CBR channel busy rate
- Embodiment 1 Carrier selection based on the CBR of the carrier
- the first terminal may measure the CBR on the resource pool of the N carriers, and select the carrier according to the CBR of the resource pool of the N carriers. For example, the first terminal may determine the M with the lowest CBR.
- Each carrier is the target carrier used to transmit feedback information. It can be understood that the lower the CBR, the lower the congestion of the system, that is, the lower the probability of interference between users. Choosing a carrier with a low CBR to transmit the PSFCH is beneficial to improve the detection performance of the PSFCH.
- the resource pool may be, for example, the resource pool used by the PSSCH sent by the second terminal, or the resource pool used by the first terminal to send the PSFCH, or any resource pool on the carrier.
- the resource pool of the N carriers may specifically be the resource pool of BWPs activated on the N carriers.
- Embodiment 2 Carrier selection based on measurement results
- the measurement result may be the measurement result of Reference Signal Receiving Power (RSRP) of the side row data channel, or may also be the measurement result of the side row control channel corresponding to the side row data channel, or It may also be the measurement result of other parameters, such as Reference Signal Receiving Quality (RSRQ), Signal to Interference plus Noise Ratio (SL-SINR), etc., which are not limited in this embodiment of the application.
- RSRP Reference Signal Receiving Power
- SSRQ Reference Signal Receiving Quality
- S-SINR Signal to Interference plus Noise Ratio
- the second terminal may send N PSSCHs
- the first terminal may measure the RSRP corresponding to the N PSSCHs, or the RSRP of the PSCCH corresponding to the PSSCH. Further, the measured RSRP on the N carriers may be selected.
- the highest M carriers are the target carriers used for side-line feedback. It can be understood that the higher the RSRP, the higher the detection performance of the PSSCH on the carrier. Correspondingly, the PSFCH transmission through the carrier has higher detection performance.
- Embodiment 3 Carrier selection based on PSSCH transmission time or reception time
- the PSSCH received by the first terminal on the N carriers corresponds to different transmission times. If the feedback information corresponding to each PSSCH needs to be multiplexed onto one PSFCH, it needs to select the latest PSSCH to be sent (that is, the latest received)
- the carrier on which it is located helps to ensure that the first terminal has sufficient processing time.
- the N carriers include carrier 0 and carrier 1.
- the first terminal receives PSSCH1 on carrier 0 and receives PSSCH2 on carrier 1.
- the transmission time of PSSCH1 and PSSCH2 are different, and the transmission time of PSSCH2 is later than all.
- the first terminal selects carrier 0 to transmit PSFCH1 as shown in Figure 11(a)
- the time interval between PSFCH1 and PSSCH2 is relatively short, which may result in the first terminal not having enough processing time for PSSCH2.
- Embodiment 4 Carrier selection based on carrier index
- the first terminal may select a carrier with a specific carrier index as the target carrier for side-line feedback. For example, the first terminal may select the carrier with the smallest index (or the largest index) among the N carriers.
- the M carriers are the target carriers.
- the indexes of the N carriers can be known, and the second terminal can receive the PSFCH in the M carriers with the smallest index, without blindly detecting the PSFCH in the N carriers.
- Embodiment 5 Carrier selection based on the first information
- the first terminal may determine that the carrier indicated by the first information is a target carrier for side-line feedback.
- Embodiment 5-1 The first information is sent by the second terminal to the first terminal.
- the second terminal indicates the target carrier used for transmitting the feedback information through the first information, so as to avoid blind detection of the PSFCH on the N carriers by the second terminal.
- the second terminal may carry the first information in the N PSSCHs, or the first information may also be used by the second terminal through Sidelink Control Information (SCI) ), or through PC5-RRC signaling.
- SCI Sidelink Control Information
- PC5-RRC signaling For example, when the first terminal and the second terminal establish a connection, the two can exchange configuration information through PC5-RRC signaling, and the first information may be Carried in the configuration information.
- the second terminal may also update the target carrier.
- the target carrier may be updated through reconfiguration of PC5-RRC signaling or SCI.
- Embodiment 5-2 The first information is sent by a network device to the first terminal.
- the network equipment can realize the equalization of PSFCH transmission resources on each carrier by configuring the target carrier for transmitting the PSFCH.
- the network device may configure the target carrier through a message or signaling such as a broadcast message or radio resource control (Radio Resource Control, RRC) signaling.
- a message or signaling such as a broadcast message or radio resource control (Radio Resource Control, RRC) signaling.
- RRC Radio Resource Control
- the network device may also update the target carrier, for example, update the target carrier through Downlink Control Information (DCI).
- DCI Downlink Control Information
- Embodiment 5-3 The first information is sent by the group head terminal to the first terminal.
- the group head terminal indicates the target carrier used for sideline feedback through the first information, so that the PSFCH transmission resources in the communication group can be coordinated.
- the group head terminal may refer to a terminal with functions such as resource management, resource allocation, resource scheduling, and resource coordination in the communication group of multicast communication, such as the first car in a fleet formation or a car in the middle of the fleet.
- the group head terminal can configure the resource pool configuration used to send the PSFCH when communicating in the communication group.
- the group head terminal can be sent via SCI, or can also be sent through a broadcast message in the group.
- the group head terminal can configure the carrier used to send PSFCH when configuring data communication in the communication group. .
- the group head terminal may also update the target carrier, for example, the target carrier may be updated through a broadcast message in the group.
- the first terminal may also determine that the primary carrier among the N carriers is the target carrier; or if the N frequency domain resources are N BWPs, The first terminal may also determine that the BWP corresponding to the primary carrier is the target BWP for sideline transmission.
- the first terminal may receive PSSCH on multiple carriers, and further may combine feedback information corresponding to multiple PSSCHs into one PSFCH for feedback, which is beneficial to reduce the overhead of side-line feedback.
- the first terminal may perform carrier selection when performing side-line feedback, and use a specific carrier to transmit PSFCH, for example, a carrier with a low CBR, a carrier with the latest transmission time or a carrier with the smallest index or a primary carrier, etc. It is helpful to improve the detection performance of PSFCH.
- a specific carrier for example, a carrier with a low CBR, a carrier with the latest transmission time or a carrier with the smallest index or a primary carrier, etc. It is helpful to improve the detection performance of PSFCH.
- FIG. 12 is a schematic flowchart of a wireless communication method 300 according to another embodiment of the present application.
- the method 300 may be executed by the terminal device in the communication system shown in FIG. 1. As shown in FIG. 12, the method 300 includes The following content:
- the first terminal receives N side-line data channels sent by the second terminal on N frequency-domain resources, where the N frequency-domain resources and the N side-line data channels correspond one-to-one, and the N Is an integer greater than 1, the frequency domain resource is a carrier or a bandwidth part BWP;
- the first terminal determines M frequency domain resources among the N frequency domain resources, where M is a positive integer and M ⁇ N;
- S330 The first terminal sends sideline feedback information of the N sideline data channels to the second terminal on the M frequency domain resources.
- the specific implementation of the 300 can refer to the related implementation of the carrier selection in the method 200.
- the specific implementation of the 300 can refer to the related implementation of the carrier selection in the method 200.
- details are not repeated here.
- the first terminal determining M frequency domain resources among the N frequency domain resources includes:
- the M frequency domain resources are determined from the N frequency domain resources, wherein the first information is used to indicate the The target frequency domain resource of the feedback information.
- the M frequency domain resources are determined from the N frequency domain resources, wherein, The first information is used to indicate the target frequency domain resource used to transmit side feedback information, including:
- the M frequency domain resources include M frequency domain resources with the lowest CBR among the N frequency domain resources;
- the measurement result is the RSRP measurement result of the reference signal received power of the side row data channel, determining that the M frequency domain resources include the M frequency domain resources with the highest measured RSRP on the N frequency domain resources; or
- the M frequency domain resources include the frequency domain resources corresponding to the one side row data channel with the latest transmission time among the N side row data channels;
- the M frequency domain resources include M frequency domain resources with the smallest index among the N frequency domain resources;
- the frequency domain resource is a carrier, determining that the M frequency domain resources include the primary carrier among the N frequency domain resources; or
- the frequency domain resource is a BWP
- the first information is sent by the second terminal to the first terminal.
- the first information is sent by the network device to the first terminal;
- the first information is sent by the group head terminal to the first terminal.
- the second terminal sends the first information to the first terminal through sideline control information SCI or PC5-RRC signaling;
- the group head terminal sends the first information to the first terminal through SCI or PC5-RRC signaling.
- the first terminal sending sideline feedback information of the N sideline data channels to the second terminal on the M frequency domain resources includes:
- the first terminal sends a sideline feedback channel on each of the M frequency domain resources, where each sideline feedback channel carries the sideline feedback of the N sideline data channels information.
- the side row feedback information of the N side row data channels is a side row corresponding to the same data. Feedback information; or,
- the side row feedback information of the N side row data channels includes side row feedback information corresponding to each data in the different data.
- the side row feedback information corresponding to the same data is based on the combined translation of the N side row data channels.
- the code result is determined.
- FIG. 13 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
- the terminal device 400 includes:
- the communication module 410 is configured to receive N side-line data channels sent by the second terminal on N frequency-domain resources, where the N frequency-domain resources and the N side-line data channels correspond one-to-one, and the N is an integer greater than 1, and the frequency domain resource is a carrier or bandwidth part BWP;
- the determining module 420 is configured to send the sideline feedback information of the N sideline data channels to the second terminal on M frequency domain resources, where the M is a positive integer and M ⁇ N.
- the communication module 410 is further configured to:
- the terminal device sends a side-line feedback channel on each of the M frequency-domain resources, wherein each side-line feedback channel carries the side-line feedback information of the N side-line data channels .
- the side row feedback information of the N side row data channels is corresponding to the same data One side row feedback information; or, if the N side row data channels transmit different data, the side row feedback information of the N side row data channels includes data corresponding to each of the different data Sideline feedback information.
- the side row feedback information corresponding to the same data is determined according to the combined decoding result of the N side row data channels .
- the determining module 420 is further configured to:
- the M frequency domain resources are determined from the N frequency domain resources, where M ⁇ N.
- the determining module 420 is specifically configured to:
- the M frequency domain resources are determined from the N frequency domain resources, wherein the first information is used to indicate the The target frequency domain resource of the feedback information.
- the determining module 420 is specifically configured to:
- the M frequency domain resources include M frequency domain resources with the lowest CBR among the N frequency domain resources;
- the measurement result is the RSRP measurement result of the reference signal received power of the side row data channel, determining that the M frequency domain resources include the M frequency domain resources with the highest measured RSRP on the N frequency domain resources; or
- the M frequency domain resources include the frequency domain resources corresponding to the one side row data channel with the latest transmission time among the N side row data channels;
- the M frequency domain resources include M frequency domain resources with the smallest index among the N frequency domain resources;
- the frequency domain resource is a carrier, determining that the M frequency domain resources include the primary carrier among the N frequency domain resources; or
- the frequency domain resource is a BWP
- the first information is sent by the second terminal to the terminal device.
- the first information is sent by the network device to the terminal device;
- the first information is sent by the group head terminal to the terminal device.
- the second terminal sends the first information to the terminal device through sideline control information SCI or PC5-RRC signaling;
- the group head terminal sends the first information to the terminal device through SCI or PC5-RRC signaling.
- the above-mentioned communication module may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
- the aforementioned determining module may be one or more processors.
- terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are to implement the first For the sake of brevity, the corresponding process of a terminal will not be repeated here.
- FIG. 14 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application.
- the terminal device 500 includes:
- the communication module 510 is configured to receive N side-line data channels sent by the second terminal on N frequency-domain resources, where the N frequency-domain resources and the N side-line data channels correspond one-to-one, and the N is an integer greater than 1, and the frequency domain resource is a carrier or bandwidth part BWP;
- the determining module 520 is configured to determine M frequency domain resources among the N frequency domain resources, where M is a positive integer, and M ⁇ N;
- the communication module 510 is further configured to send the sideline feedback information of the N sideline data channels to the second terminal on the M frequency domain resources.
- the determining module 520 is further configured to:
- the M frequency domain resources are determined from the N frequency domain resources, wherein the first information is used to indicate the The target frequency domain resource of the feedback information.
- the determining module 520 is specifically configured to:
- the M frequency domain resources include M frequency domain resources with the lowest CBR among the N frequency domain resources;
- the measurement result is the RSRP measurement result of the reference signal received power of the side row data channel, determining that the M frequency domain resources include the M frequency domain resources with the highest measured RSRP on the N frequency domain resources; or
- the M frequency domain resources include the frequency domain resources corresponding to the one side row data channel with the latest transmission time among the N side row data channels;
- the M frequency domain resources include M frequency domain resources with the smallest index among the N frequency domain resources;
- the frequency domain resource is a carrier, determining that the M frequency domain resources include the primary carrier among the N frequency domain resources; or
- the frequency domain resource is a BWP
- the first information is sent by the second terminal to the terminal device.
- the first information is sent by the network device to the terminal device;
- the first information is sent by the group head terminal to the terminal device.
- the second terminal sends the first information to the terminal device through sideline control information SCI or PC5-RRC signaling;
- the group head terminal sends the first information to the terminal device through SCI or PC5-RRC signaling.
- the communication module is specifically configured to:
- One side-line feedback channel is sent on each of the M frequency-domain resources, where each side-line feedback channel carries side-line feedback information of the N side-line data channels.
- the side row feedback information of the N side row data channels is one corresponding to the same data.
- Sideline feedback information or,
- the side row feedback information of the N side row data channels includes side row feedback information corresponding to each data in the different data.
- the side row feedback information corresponding to the same data is based on the N side row data channels The combined decoding result is determined.
- the above-mentioned communication module may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
- the aforementioned determining module may be one or more processors.
- terminal device 500 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 500 are used to implement the first For the sake of brevity, the corresponding process of a terminal will not be repeated here.
- FIG. 15 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
- the communication device 600 shown in FIG. 15 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
- the communication device 600 may further include a memory 620.
- the processor 610 can call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.
- the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
- the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
- the transceiver 630 may include a transmitter and a receiver.
- the transceiver 630 may further include an antenna, and the number of antennas may be one or more.
- the communication device 600 may specifically be a network device of an embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here. .
- the communication device 600 may specifically be a mobile terminal/terminal device of an embodiment of the application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the application. For the sake of brevity , I won’t repeat it here.
- FIG. 16 is a schematic structural diagram of a chip of an embodiment of the present application.
- the chip 700 shown in FIG. 16 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
- the chip 700 may further include a memory 720.
- the processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.
- the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
- the chip 700 may further include an input interface 730.
- the processor 710 can control the input interface 730 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
- the chip 700 may further include an output interface 740.
- the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
- the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
- the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
- the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
- the chip mentioned in the embodiment of the present application may also be called a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip.
- the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
- the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
- the above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
- DSP Digital Signal Processor
- ASIC application specific integrated circuit
- FPGA Field Programmable Gate Array
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
- the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
- RAM random access memory
- SRAM static random access memory
- DRAM dynamic random access memory
- DRAM synchronous dynamic random access memory
- DDR SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
- Enhanced SDRAM, ESDRAM Enhanced Synchronous Dynamic Random Access Memory
- Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
- DR RAM Direct Rambus RAM
- the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
- the embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
- the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application , For the sake of brevity, I won’t repeat it here.
- the embodiments of the present application also provide a computer program product, including computer program instructions.
- the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For the sake of brevity, I will not repeat them here.
- the embodiment of the present application also provides a computer program.
- the computer program can be applied to the network device in the embodiment of the present application.
- the computer program runs on the computer, it causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
- I won’t repeat it here.
- the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
- the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
- the disclosed system, device, and method can be implemented in other ways.
- the device embodiments described above are merely illustrative.
- the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined It can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
- the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes. .
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Abstract
一种无线通信的方法和终端设备,该方法包括:第一终端在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;所述第一终端在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息,其中,所述M为正整数,且M≤N。
Description
本申请实施例涉及通信领域,具体涉及一种无线通信的方法和终端设备。
车联网系统是基于长期演进车辆到车辆(Long Term Evaluation Device to Device,LTE D2D)的一种侧行链路(Sidelink,SL)传输技术,与传统的LTE系统中通信数据通过基站接收或者发送的方式不同,车联网系统采用终端到终端直接通信的方式,因此,具有更高的频谱效率以及更低的传输时延。
在车联网系统中,为了提高传输可靠性,引入了侧行反馈信道,在侧行反馈激活的情况下,接收端终端可以向发送端终端发送侧行反馈信息,以便于发送端终端根据该侧行反馈信息确定是否进行重传。
目前,考虑车联网系统支持多载波侧行传输,例如多个载波可以传输不同的侧行数据,从而能够提升系统的吞吐量,或者多个载波可以传输相同的侧行数据,能够提升数据的可靠性。此情况下,进行侧行反馈以提升传输的可靠性是一项亟需解决的问题。
发明内容
本申请实施例提供一种无线通信的方法和终端设备,能够实现多载波上的侧行传输的侧行反馈。
第一方面,提供了一种无线通信的方法,包括:第一终端在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;
所述第一终端在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息,其中,所述M为正整数,且M≤N。
第二方面,提供了一种无线通信的方法,包括:第一终端在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;
所述第一终端在所述N个频域资源中确定M个频域资源,其中,M为正整数,且M<N;
所述第一终端在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息。
第三方面,提供了一种终端设备,用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地,该终端设备包括用于执行上述第一方面或第一方面的任一可能的实现方式中的方法的单元。
第四方面,提供了一种终端设备,用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地,该终端设备包括用于执行上述第二方面或第二方面的任一可能的实现方式中的方法的单元。
第五方面,提供了一种终端设备,该终端设备包括:包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面或其各实现方式中的方法。
第六方面,提供了一种终端设备,该终端设备包括:包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第二方面或其各实现方式中的方法。
第七方面,提供了一种芯片,用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
具体地,该芯片包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该芯片的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方 法。
第八方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第九方面,提供了一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第十方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
基于上述技术方案,所述第一终端可以在多个载波上接收PSSCH,进一步可以将多个PSSCH对应的反馈信息合并在一个PSFCH进行反馈,有利于降低侧行反馈的开销。
图1是本申请实施例提供的一种应用场景的示意性图。
图2是终端设备之间的几种通信方式的示意性图。
图3是承载1比特反馈信息的PSFCH的结构示意图。
图4是侧行反馈的一例示意图。
图5是本申请实施例提供的一种无线通信的方法的示意性图。
图6至图10是根据本申请实施例的侧行反馈的示意图。
图11是基于PSSCH的发送时间进行载波选择的示意图。
图12是本申请实施例提供的另一种无线通信的方法的示意性图。
图13是本申请实施例提供的一种终端设备的示意性框图。
图14是本申请实施例提供的另一种终端设备的示意性框图。
图15是本申请另一实施例提供的一种通信设备的示意性框图。
图16是本申请实施例提供的一种芯片的示意性框图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
应理解,本申请实施例的技术方案可以应用于端到端(Device to Device,D2D)通信系统,例如,基于长期演进(Long Term Evolution,LTE)进行D2D通信的车联网系统,或者NR-V2X系统。与传统的LTE系统中终端之间的通信数据通过网络设备(例如,基站)接收或者发送的方式不同,车联网系统采用终端到终端直接通信的方式,因此具有更高的频谱效率以及更低的传输时延。
可选地,车联网系统基于的通信系统可以是全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、LTE系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统、5G新无线(New Radio,NR)系统等。
本申请实施例中的网络设备可以是GSM系统或CDMA系统中的基站(Base Transceiver Station,BTS),也可以是WCDMA系统中的基站(NodeB,NB),还可以是LTE系统中的演进型基站(Evolutional Node B,eNB或eNodeB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、NR网络中的网络侧设备(gNB)或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。
本申请实施例中的终端设备可以是能够实现D2D通信的终端设备。例如,可以是车载终端设备,也可以是LTE系统中的终端设备(LTE UE),NR网络中的终端设备(NR UE),或者未来演进的公用陆地移动通信网络(Public Land Mobile Network,PLMN)中的终端设备等,本申请实施例并不限定。
D2D通信技术可以应用于车对车(Vehicle to Vehicle,简称“V2V”)通信或车辆到其他设备(Vehicle to Everything,V2X)通信。在V2X通信中,X可以泛指任何具有无线接收和发送能力的设备,例如但不限于慢速移动的无线装置,快速移动的车载设备,或是具有无线发射接收能力的网络控制节点等。应理解,本发明实施例主要应用于V2X通信的场景,但也可以应用于任意其它D2D通信场景,本申请实施例对此不做任何限定。
图1是本申请实施例的一个应用场景的示意图。图1示例性地示出了一个网络设备和两个终端设备,可选地,本申请实施例中的无线通信系统可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A上和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
可选地,该无线通信系统还可以包括移动管理实体(Mobile Management Entity,MME)、服务网关(Serving Gateway,S-GW)、分组数据网络网关(Packet Data Network Gateway,P-GW)等其他网络实体,或者,该无线通信系统还可以包括会话管理功能(Session Management Function,SMF)、统一数据管理(Unified Data Management,UDM),认证服务器功能(Authentication Server Function,AUSF)等其他网络实体,本申请实施例对此不作限定。
在该车联网系统中,终端设备可以采用模式A和模式B进行通信。
具体地,终端设备121和终端设备122可以通过D2D通信模式进行通信,在进行D2D通信时,终端设备121和终端设备122通过D2D链路即侧行链路(SideLink,SL)直接进行通信。其中,在模式A中,终端设备的传输资源是由基站分配的,终端设备可以根据基站分配的资源在SL上进行数据的发送。基站可以为终端设备分配单次传输的资源,也可以为终端分配半静态传输的资源。在模式B中,终端设备在SL资源上自主选取传输资源。具体的,终端设备在资源池中通过侦听的方式获取可用的传输资源,或者终端设备从资源池中随机选取一个传输资源。
应理解,上述模式A和模式B只是示例性的说明两种传输模式,可以定义其他的传输模式。例如,在NR-V2X中引入了模式1和模式2,其中,模式1表示终端设备的侧行链路传输资源是由基站分配的,基站采用该模式A和模式1分配侧行链路传输资源的方式可以不同,例如,可以是一个采用动态调度的方式,另一个采用半静态调度的方式,或半静态加动态调度的方式等,模式2表示终端设备的侧行链路传输资源是终端选取的。
在基于新无线(New Radio,NR)的车辆到其他设备(Vehicle to Everything,V2X)系统(简称NR-V2X)中,可以支持多种传输方式:单播传输方式,接收端终端只有一个终端,如图2的(a)所示为UE1和UE2之间的单播传输;组播传输方式,接收端终端为一个通信组内的所有终端,或者是一定传输距离内的所有终端,如图2的(b)所示,UE1,UE2,UE3和UE4构成一个通信组,其中,UE1发送数据,则该通信组内的其他终端设备都是接收端终端;广播传输方式,其接收端可以是任一终端,如图2的(c)所示,UE1为发送端终端,其周围的其他终端都可以是接收端终端。
在NR-V2X系统中,为了提高传输可靠性,引入了侧行反馈信道,例如,物理侧行反馈信道(Physical Sidelink Feedback Channel,PSFCH)。对于单播传输,发送端终端向接收端终端发送侧行数据(包括PSCCH和PSSCH),接收端终端可以向发送端终端发送混合自动请求重传(Hybrid Automatic Repeat reQuest,HARQ)侧行反馈信息,发送端终端可以根据接收端终端的侧行反馈信息判断是否需要进行重传,其中,HARQ侧行反 馈信息可以承载在侧行反馈信道中。
其中,该PSFCH只承载1比特的侧行反馈信息,在时域上占用两个时域符号,其中,两个时域符号上承载相同的侧行反馈信息,一个时域符号上的数据是另一个时域符号上的数据的重复,例如,第二个时域符号用于承载侧行反馈信息,第一个符号上的数据是第二个符号上的数据的复制,该第一个符号用作自动增益控制(Automatic Gain Control,AGC),该PSFCH频域上占用一个物理资源块(Physical Resource Block,PRB)。图3是PSFCH和物理侧行共享信道(Physical Sidelink Shared Channel,PSSCH)/物理侧行控制信道(Physical Sidelink Control Channel,PSCCH)的结构的一种示例,具体地,图3中示例了一个时隙中PSFCH,PSCCH和PSSCH所占的时域符号的位置,其中,在一个时隙中,最后一个符号(即时域符号13)可以用作保护间隔(Guard Period,GP),倒数第二个符号(即时域符号12)用于PSFCH传输,倒数第三个符号上的数据和倒数第二个符号上的数据相同,用作AGC,倒数第四个符号也用作GP,该时隙中的第一个符号用作AGC,该第一个符号上的数据该时隙中的第二个符号上的数据相同,PSCCH占用3个时域符号,即时域符号1、2和3,时域符号1至9用于传输PSSCH,在时域符号1、2、3上,PSCCH和PSSCH占用不同的频域资源。
应理解,图3中所示例的PSCCH所占用的时域符号的数量和位置,PSFCH所占用的时域符号的位置仅为示例,本申请实施例并不限于此。
进一步地,为了降低PSFCH的开销,定义在每N个时隙中的一个时隙包括PSFCH传输资源,例如,N=1,2,4,其中,该N可以是预配置的或网络设备配置的,图4为N=4的示意图。其中,时隙2,3,4,5中传输的PSSCH,其对应的侧行反馈信息在时隙7中传输,因此,可以将时隙{2,3,4,5}看做一个时隙集合,该时隙集合中传输的PSSCH,其对应的PSFCH可以在相同的时隙中传输。
在NR-V2X系统中,考虑引入多载波的侧行传输,例如多个载波可以传输不同的侧行数据,从而能够提升系统的吞吐量,或者多个载波可以传输相同的侧行数据,能够提升数据的可靠性,这种情况下,如何进行侧行反馈是一项亟需解决的问题。
图5为本申请实施例提供的一种无线通信的方法200的示意性流程图。该方法200可以由图1所示的通信系统中的终端设备执行,如图5所示,该方法200可以包括如下至少部分内容:
S210,第一终端在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;
S220,所述第一终端在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息,其中,所述M为正整数,且M≤N。
应理解,本申请实施例也适用于在多个频域资源上进行侧行传输,以及需要进行侧行反馈的其他场景,例如,所述第一终端也可以在所述N个频域资源上接收N个侧行参考信号,进一步在M个频域资源上向所述第二终端发送所述N个侧行参考信道的测量结果,以下,以对侧行数据信道的侧行反馈为例进行说明,但本申请实施例并不限于此。
可选地,本申请实施例的侧行参考信号例如可以包括侧行同步信号(Sidelink Synchronization Signal,SLSS)、侧行同步信号块(Sidelink Synchronization Signal Block,S-SSB)、侧行信道状态信息参考信号(Sidelink Channel State Information Reference Signal,SL CSI-RS)、解调参考信号(Demodulation Reference Signal,DMRS),其中,该S-SSB可以包括侧行主同步信号(Sidelink Primary Synchronization Signal,S-PSS)和侧行辅同步信号(Sidelink Secondary Synchronization Signal,S-SSS)等;解调参考信号包括PSSCH-DMRS,PSCCH DMRS和PSBCH DMRS。
在本申请实施例中,所述N个频域资源可以为N个载波或N个带宽部分(Bandwidth,BWP),或者也可以为其他频域单元,类似地,所述M个频域资源可以为M个载波或M个BWP,或者也可以为其他频域单元,以下,以所述N个频域资源为N个载波,所述M个频域单元为M个载波为例说明,但本申请实施例并不限于此。
应理解,本申请实施例并不限定所述M个载波和所述N个载波之间的关系,例如,所述M个载波可以是所述N个载波中的M个,或者,所述N个载波可以对应K个载波,所述K个载波和所述N个载波至少部分不同,所述M个载波为所述K个载波中的M个,其中,K≥M。
还应理解,本申请实施例并不限定所述M个载波的数量。
作为一个示例,所述M个载波与所述N个载波的数量相同,即M=N,例如,所述M个载波为所述N个载波。
作为另一示例,所述M个载波的数量小于所述N个载波的数量,例如,所述M个载波为所述N个载波中的M个,在一些具体示例中,所述M=1,或M>1且M<N。
所述第一终端可以在N个载波上接收第二终端发送的侧行数据信道,例如,PSSCH,进一步地,所述第一终端可以在M个载波上向所述第二终端发送所述N个载波上接收的PSSCH的侧行反馈信息,即所述第一终端可以反馈N个PSSCH的侧行反馈信息,从而所述第二终端可以根据所述N个PSSCH的侧行反馈信息确定是否进行PSSCH的重传。
可选地,在一些实施例中,所述M为1,所述第一终端可以在一个载波上发送一个侧行反馈信道,例如,物理侧行反馈信道(Physical Sidelink Feedback Channel,PSFCH),所述一个侧行反馈信道中承载所述N个PSSCH的侧行反馈信息。
可选地,在另一些实施例中,所述M大于1,所述第一终端可以在所述M个载波中的每个载波上发送一个侧行反馈信道,例如,PSFCH,每个侧行反馈信道中承载所述N个PSSCH的侧行反馈信息,即所述第一终端可以通过多个载波向所述第二终端发送侧行反馈信道,从而能够提高PSFCH的可靠性。
应理解,本申请实施例对于侧行数据信道对应的侧行反馈信息所占的比特数不作具体限定,作为一个具体示例,每个侧行数据信道对应的侧行反馈信息可以为ACK,或NACK,即占1比特,以下,以所述侧行数据信道对应的侧行反馈信息为1比特的反馈信息为例进行说明,但本申请实施例并不限于此。
可选地,在一些实施例中,所述N个PSSCH中传输的是相同的数据,即所述第二终端可以采用复制的方式进行数据传输。
此情况下,在一些实施例中,所述N个PSSCH的侧行反馈信息可以是所述相同的数据对应的一个侧行反馈信息,即所述N个PSSCH可以对应一个侧行反馈信息,针对一个PSSCH传输一个TB的情况,该N个PSSCH对应的一个侧行反馈信息为1比特,若一个PSSCH传输2个TB,则每个TB对应1比特侧行反馈信息,则该N个PSSCH对应的一个侧行反馈信息为2比特,或者,对于基于CBG的反馈方式,一个CBG对应1比特侧行反馈信息,该N个PSSCH对应的一个侧行反馈信息的比特数为CBG的个数。
可选地,所述一个侧行反馈信息可以是根据所述N个PSSCH合并译码的译码结果确定的;或者,在其他实施例中,所述N个PSSCH的侧行反馈信息也可以包括所述N个PSSCH中的每个PSSCH对应的侧行反馈信息,其中,所述每个PSSCH对应的侧行反馈信息可以是根据所述每个PSSCH的译码结果确定的。
举例说明,所述N个载波包括载波0和载波1,第一终端可以在载波0上接收PSSCH1,以及在载波1接收PSSCH2,所述PSSCH1和PSSCH2中传输相同的数据,例如TB1,可选地,所述载波0和载波1上传输的是该数据的不同冗余版本。
作为一个示例,所述第一终端可以对该PSSCH1和PSSCH2上承载的数据进行合并处理,例如进行合并译码,若译码成功,则反馈ACK,否则反馈NACK,由于这两个载波上传输的是相同的数据,只需传输一个侧行反馈信息,即只需要1比特。
进一步地,如图6所示,所述第一终端可以在载波0上传输针对所述PSSCH1和PSSCH2的所述一个侧行反馈信息,或者,所述第一终端可以在载波1上传输针对所述PSSCH1和PSSCH2的所述一个侧行反馈信息,或者,如图7所示,也可以在这两个载波上都传输该一个侧行反馈信息,能够提升侧行反馈的可靠性。
作为另一示例,第一终端可以对该PSSCH1和PSSCH2上承载的数据分别进行处理,例如分别进行译码,并根据各自的译码结果,确定对应的侧行反馈信息。
进一步地,所述第一终端可以对每个数据进行单独反馈,例如,如图8所示,在载波0上发送第一侧行反馈信道,所述第一侧行反馈信道包括PSSCH1的侧行反馈信息,在载波1上发送第二侧行反馈信道,所述第二侧行反馈信道包括PSSCH2的侧行反馈信息,即每个侧行反馈信道都包括1比特的反馈信息;或者,在其他实施例中,所述第一终端可以对每个数据进行合并反馈,例如,所述第一终端可以在载波0和/或者载波1上发送侧行反馈信道,所述侧行反馈信道可以包括所述PSSCH1和PSSCH2分别对应的侧行反馈信息,即所述侧行反馈信道可以包括2比特的反馈信息。由于PSSCH1和PSSCH2承载的是相同的数据,即TB1,对于接收端而言,若该2比特的侧行反馈信息中有至少一个比特是ACK,即可认为该TB1被正确接收。
可选地,在另一些实施例中,所述N个PSSCH传输的是不同的数据,即所述第二终端可以采用复用的方式进行数据传输。
此情况下,所述N个PSSCH的侧行反馈信息可以包括所述不同的数据中的每个数据对应的侧行反馈信息,其中,所述每个数据对应的侧行反馈信息可以是根据每个PSSCH的译码结果确定的。
进一步地,所述第一终端可以对所述N个PSSCH进行合并反馈,例如,可以通过所述M个载波中的每个载波发送所述N个PSSCH中的每个PSSCH的侧行反馈信息,即每个载波上传输一个侧行反馈信道,所述侧行反馈信道用于承载N个侧行反馈信息,对应所述N个PSSCH,即每个载波上传输的侧行反馈信道承载N个比特的侧行反馈信息。或者,在其他实施例中,所述第一终端也可以对所述N个PSSCH进行单独反馈,例如可以每个PSSCH对应的侧行反馈信息可以通过该每个PSSCH对应的载波传输。
举例说明,所述N个载波包括载波0和载波1,第一终端可以在载波0上接收PSSCH1,以及在载波1接收PSSCH2,所述PSSCH1和PSSCH2中传输不同的数据,例如,PSSCH1中承载TB1,PSSCH2中承载TB2。
第一终端可以对该PSSCH1和PSSCH2上承载的数据分别进行处理,例如分别进行译码,并根据各自的译码结果,确定对应的侧行反馈信息。例如,若PSSCH1检测成功,则反馈ACK,否则反馈NACK,对于PSSCH2类似。由于PSSCH1和PSSCH2传输的是不同的数据,因此,需要反馈针对每个数据的侧行反馈信息,即需要2比特的侧行反馈信息。
进一步地,所述第一终端可以对每个数据进行合并反馈,例如,如图9所示,所述第一终端可以在载波0上发送侧行反馈信道,所述侧行反馈信道可以包括所述PSSCH1和PSSCH2分别对应的侧行反馈信息,即所述侧行反馈信道可以包括2比特的反馈信息,或者也可以在载波1上发送所述侧行反馈信道,或者,如图10所示,所述第一终端也可以在载波0和载波1上都发送所述侧行反馈信道,每个侧行反馈信道中包括2比特的侧行反馈信息,有利于提高侧行反馈信道的可靠性。
在其他实施例中,所述第一终端也可以对每个数据进行单独反馈,例如,图8所示,在载波0上发送第一侧行反馈信道,所述第一侧行反馈信道包括PSSCH1的侧行反馈信息,在载波1上发送第二侧行反馈信道,所述第二侧行反馈信道包括PSSCH2的侧行反馈信息,即每个侧行反馈信道都包括1比特的反馈信息。
应理解,在本申请实施例中,将所述N个PSSCH的反馈信息合并到一个侧行反馈信道中进行传输时,该侧行反馈信道中承载1个或多个比特的反馈信息,这里,将存在多比特的反馈信息的侧行反馈信道记为第二类侧行反馈信道,其与图3所示的承载1比特的侧行反馈信息的PSFCH的信道设计不同。
可选地,在一些实施例中,在时域上,所述第二类侧行反馈信道占用一个时隙中的能够用于侧行传输的所有时域符号。
可选地,一个时隙中能够用于侧行传输的所有时域符号中的最后一个时域符号不用于传输所述第二类侧行反馈信道,例如,所述最后一个时域符号用作GP。
可选地,一个时隙中能够用于侧行传输的所有时域符号中的第一个时域符号用作AGC。
可选地,一个时隙中能够用于侧行传输的所有时域符号中的第一个时域符号上的数据是该时隙中用于侧行传输的第二个时域符号上的数据的复制或拷贝,即能够用于侧行传输的第一个时域符号和第二个时域符号上的数据相同。
可选地,在频域上,所述第二类侧行反馈信道占用M个PRB,其中,所述M为正整数,即所述第二类侧行反馈信道在频域上可以占用一个或多个PRB。
因此,在一些实现方式中,所述第二类侧行反馈信道在时域上可以占用一个时隙中的能够用于侧行传输的所有时域符号,并且在频域上占用一个或多个RPB。
在其他替代实现方式中,所述第二类侧行反馈信道在时域上可以占用一个时隙中能够用于侧行传输的所有时域符号中的倒数第二个和倒数第三个时域符号,并且在频域上占用P个PRB,其中,所述P为大于1的整数,即可以通过在频域上占用多个PRB实现对多比特的反馈信息的传输。
在本申请实施例中,若所述第一终端在所述N个载波中的部分载波上传输所述N个PSSCH的反馈信息,则所述第一终端还需要进行载波选择以在所述N个载波中确定M个载波,所述M小于N。
可选地,在本申请一些实施例中,所述第一终端可以根据载波的信道繁忙率(Channel Busy Rate,CBR),侧行数据信道的测量结果,所述N个载波的载波索引,所述N个侧行数据信道的接收时间,以及第一信息中的至少一项,确定所述M个载波,其中,所述第一信息可以用于指示用于传输侧行反馈信息的目标载波。
以下,结合具体实施例进行说明。
实施例1:根据载波的CBR进行载波选择
作为一个示例,所述第一终端可以测量所述N个载波的资源池上的CBR,根据所述N个载波的资源池的CBR进行载波选择,例如,所述第一终端可以确定CBR最低的M个载波为用于传输反馈信息的目标载波。可以理解,CBR越低,系统的拥塞程度越低,即用户之间干扰的概率越低,选择CBR低的载波传输PSFCH有利于提升PSFCH的检测性能。
可选地,该资源池例如可以是所述第二终端发送的PSSCH所使用的资源池,或者所述第一终端发送PSFCH所使用的资源池,或者是在该载波上的任意一个资源池。
可选地,由于载波上通常配置有多个BWP,该多个BWP中存在激活的BWP,则所述N个载波的资源池具体可以为所述N个载波上激活的BWP的资源池。
实施例2:根据测量结果进行载波选择
可选地,所述测量结果可以为侧行数据信道的参考信号接收功率(Reference Signal Receiving Power,RSRP)的测量结果,或者也可以为侧行数据信道对应的侧行控制信道的测量结果,或者也可以为其他参数的测量结果,例如参考信号接收质量(Reference Signal Receiving Quality,RSRQ),信号干扰噪声比(Signal to Interference plus Noise Ratio,SL-SINR)等,本申请实施例对此不作限定。
作为一个示例,第二终端可以发送N个PSSCH,该第一终端可以测量该N个PSSCH对应的RSRP,或者PSSCH对应的PSCCH的RSRP,进一步地,可以选择所述N个载波上的测量的RSRP最高的M个载波为用于侧行反馈的目标载波。可以理解,RSRP越高,表示该载波上的PSSCH的检测性能越高,相应地,通过该载波传输PSFCH,其检测性能也较高。
实施例3:根据PSSCH的发送时间或接收时间进行载波选择
第一终端在所述N个载波上接收的PSSCH对应不同的发送时间,如果需要把各个PSSCH对应的反馈信息复用到一个PSFCH上,则需要选择最晚发送(也就是最晚接收)的PSSCH所在的载波,有利于保证第一终端有足够的处理时间。
举例说明,所述N个载波包括载波0和载波1,第一终端在载波0上接收PSSCH1,以及在载波1接收PSSCH2,所述PSSCH1和PSSCH2的发送时刻不同,其中PSSCH2的发送时刻晚于所述PSSCH1的发送时刻,若如图11的(a)所示,所述第一终端选择载波0传输PSFCH1,则由于PSFCH1和PSSCH2时间间隔比较短,可能导致第一终端 没有足够的处理时间对PSSCH2进行译码,并将检测结果复用到PSFCH1上进行反馈。采用载波1上的PSFCH2进行反馈,如图11中的(b)所示,由于PSFCH2与PSSCH1和PSSCH2的间隔都较远,有利于保证第一终端有足够的处理时间对PSSCH1和PSSCH2都进行译码并将检测结果复用到PSFCH2中进行传输。并且,第二终端知道所述PSSCH的发送时间,则第二终端只需在发送时间最晚的PSSCH对应的载波上去检测PSFCH,不需要盲检PSFCH,有利于提升系统性能。
实施例4:根据载波索引进行载波选择
在本实施例中,所述第一终端可以选择特定载波索引的载波为侧行反馈的目标载波,例如,所述第一终端可以选择所述N个载波中索引最小的(或索引最大的)M个载波为所述目标载波。
对于第一终端和第二终端而言,都可以获知该N个载波的索引,则第二终端可以在索引最小的M个载波中接收PSFCH,不需要在所述N个载波中盲检PSFCH。
实施例5:根据第一信息进行载波选择
作为一个示例,所述第一终端可以确定所述第一信息指示的载波为进行侧行反馈的目标载波。
实施例5-1:所述第一信息是第二终端发送给所述第一终端的。
所述第二终端通过第一信息指示用于传输反馈信息的目标载波,从而能够避免所述第二终端在所述N个载波上盲检PSFCH。
可选地,所述第二终端可以在所述N个PSSCH中携带所述第一信息,或者,所述第一信息也可以是所述第二终端通过侧行控制信息(Sidelink Control Information,SCI)发送的,或者也可以是通过PC5-RRC信令发送的,例如,在第一终端和第二终端建立连接时,二者可以通过PC5-RRC信令交互配置信息,所述第一信息可以承载在所述配置信息。
可选地,所述第二终端也可以更新所述目标载波,例如,可以通过重配置PC5-RRC信令或SCI更新所述目标载波。
实施例5-2:所述第一信息是网络设备发送给所述第一终端的。
网络设备通过配置用于发送PSFCH的目标载波,能够实现在各个载波上的PSFCH传输资源的均衡。
可选地,所述网络设备可以通过广播消息或无线资源控制(Radio Resource Control,RRC)信令等消息或信令配置所述目标载波。
可选地,所述网络设备也可以更新所述目标载波,例如通过下行控制信息(Downlink Control Information,DCI)更新所述目标载波。
实施例5-3:所述第一信息是组头终端发送给所述第一终端的。
所述组头终端通过第一信息指示用于侧行反馈的目标载波,从而能够协调通信组内的PSFCH的传输资源。
其中,该组头终端可以指组播通信的通信组内具有资源管理、资源分配、资源调度、资源协调等功能的终端,例如在车队编队行驶中的第一辆车或者是车队中间位置的车。该组头终端可以配置在该通信组内进行通信时,发送PSFCH所使用的资源池配置。
可选地,所述组头终端可以通过SCI发送,或者也可以是通过组内的广播消息发送,例如,该组头终端可以在配置该通信组内的数据通信时,配置发送PSFCH使用的载波。
可选地,所述组头终端也可以更新所述目标载波,例如,可以通过组内的广播消息更新所述目标载波。
可选地,在其他可选实施例中,所述第一终端也可以确定所述N个载波中的主载波为所述目标载波;或者若所述N个频域资源为N个BWP,所述第一终端也可以确定主载波对应的BWP为用于侧行传输的目标BWP。
因此,在本申请实施例中,所述第一终端可以在多个载波上接收PSSCH,进一步可以将多个PSSCH对应的反馈信息合并在一个PSFCH进行反馈,有利于降低侧行反馈的开销。
进一步地,所述第一终端在进行侧行反馈时,可以进行载波选择,采用特定的载波传输PSFCH,例如,CBR低的载波,发送时间最晚的载波或索引最小的载波或主载波等,有利于提升PSFCH的检测性能。
图12是根据本申请另一实施例的无线通信的方法300的示意性流程图,该方法300可以由图1所示的通信系统中的终端设备执行,如图12所示,该方法300包括如下内容:
S310,第一终端在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;
S320,所述第一终端在所述N个频域资源中确定M个频域资源,其中,M为正整数,且M<N;
S330,所述第一终端在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息。
具体地,所述300的具体实现可以参考方法200中关于载波选择的相关实现,为了简洁,这里不再赘述。
可选地,在一些实施例中,所述第一终端在所述N个频域资源中确定M个频域资源,包括:
根据所述N个频域资源上的资源池的信道繁忙率CBR,所述N个频域资源上的侧行数据信道的测量结果,所述N个侧行数据信道的发送时间,所述N个频域资源的索引,以及第一信息中的至少一项,在所述N个频域资源中确定所述M个频域资源,其中,所述第一信息用于指示用于传输侧行反馈信息的目标频域资源。
可选地,在一些实施例中,所述根据所述N个频域资源上的资源池的信道繁忙率CBR,所述N个频域资源上的侧行数据信道的测量结果,所述N个侧行数据信道的发送时间,所述N个频域资源的索引,以及第一信息中的至少一项,在所述N个频域资源中确定所述M个频域资源,其中,所述第一信息用于指示用于传输侧行反馈信息的目标频域资源,包括:
确定所述M个频域资源包括N个频域资源上CBR最低的M个频域资源;或者
若所述测量结果为侧行数据信道的参考信号接收功率RSRP的测量结果,确定所述M个频域资源包括N个频域资源上的测量的RSRP最高的M个频域资源;或者
确定所述M个频域资源包括所述N个侧行数据信道中发送时间最晚的一个侧行数据信道对应的频域资源;或者
确定所述M个频域资源包括所述N个频域资源中索引最小的M个频域资源;或者
确定所述M个频域资源包括所述第一信息指示的频域资源;或者
若所述频域资源为载波,确定所述M个频域资源包括所述N个频域资源中的主载波;或者
若所述频域资源为BWP,确定所述M个频域资源包括主载波对应的BWP。
可选地,在一些实施例中,所述第一信息是所述第二终端发送给所述第一终端的;或者
所述第一信息是网络设备发送给所述第一终端的;或者
所述第一信息是组头终端发送给所述第一终端的。
可选地,在一些实施例中,所述第二终端通过侧行控制信息SCI或者PC5-RRC信令向所述第一终端发送所述第一信息;
所述网络设备通过广播消息或无线资源控制RRC信令发送所述第一信息;
所述组头终端通过SCI或者PC5-RRC信令向所述第一终端发送所述第一信息。
可选地,在一些实施例中,所述第一终端在所述M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息,包括:
所述第一终端在所述M个频域资源中的每个频域资源上发送一个侧行反馈信道,其中,每个侧行反馈信道中承载所述N个侧行数据信道的侧行反馈信息。
可选地,在一些实施例中,若所述N个侧行数据信道传输的是相同的数据,所述N 个侧行数据信道的侧行反馈信息为所述相同的数据对应的一个侧行反馈信息;或者,
若所述N个侧行数据信道传输的是不同的数据,所述N个侧行数据信道的侧行反馈信息包括所述不同的数据中的每个数据对应的侧行反馈信息。
可选地,在一些实施例中,若所述N个侧行数据信道传输的是相同的数据,所述相同的数据对应的侧行反馈信息是根据所述N个侧行数据信道的合并译码结果确定的。
上文结合图5至图12,详细描述了本申请的方法实施例,下文结合图13至图16,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。
图13示出了根据本申请实施例的终端设备400的示意性框图。如图13所示,该终端设备400包括:
通信模块410,用于在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;
确定模块420,用于在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息,其中,所述M为正整数,且M≤N。
可选地,在本申请一些实施例中,所述通信模块410还用于:
所述终端设备在所述M个频域资源中的每个频域资源上发送一个侧行反馈信道,其中,每个侧行反馈信道中承载所述N个侧行数据信道的侧行反馈信息。
可选地,在本申请一些实施例中,若所述N个侧行数据信道中传输的是相同的数据,所述N个侧行数据信道的侧行反馈信息为所述相同的数据对应的一个侧行反馈信息;或者,若所述N个侧行数据信道传输的是不同的数据,所述N个侧行数据信道的侧行反馈信息包括所述不同的数据中的每个数据对应的侧行反馈信息。
在一些实施例中,若所述N个侧行数据信道传输的是相同的数据,所述相同的数据对应的侧行反馈信息是根据所述N个侧行数据信道的合并译码结果确定的。
可选地,在本申请一些实施例中,所述确定模块420还用于:
在所述N个频域资源中确定所述M个频域资源,其中,M<N。
可选地,在本申请一些实施例中,所述确定模块420具体用于:
根据所述N个频域资源上的资源池的信道繁忙率CBR,所述N个频域资源上的侧行数据信道的测量结果,所述N个侧行数据信道的发送时间,所述N个频域资源的索引,以及第一信息中的至少一项,在所述N个频域资源中确定所述M个频域资源,其中,所述第一信息用于指示用于传输侧行反馈信息的目标频域资源。
可选地,在本申请一些实施例中,所述确定模块420具体用于:
确定所述M个频域资源包括N个频域资源上CBR最低的M个频域资源;或者
若所述测量结果为侧行数据信道的参考信号接收功率RSRP的测量结果,确定所述M个频域资源包括N个频域资源上的测量的RSRP最高的M个频域资源;或者
确定所述M个频域资源包括所述N个侧行数据信道中发送时间最晚的一个侧行数据信道对应的频域资源;或者
确定所述M个频域资源包括所述N个频域资源中索引最小的M个频域资源;或者
确定所述M个频域资源包括所述第一信息指示的频域资源;或者
若所述频域资源为载波,确定所述M个频域资源包括所述N个频域资源中的主载波;或者
若所述频域资源为BWP,确定所述M个频域资源包括主载波对应的BWP。
可选地,所述第一信息是所述第二终端发送给所述终端设备的;或者
所述第一信息是网络设备发送给所述终端设备的;或者
所述第一信息是组头终端发送给所述终端设备的。
可选地,在本申请一些实施例中,所述第二终端通过侧行控制信息SCI或者PC5-RRC信令向所述终端设备发送所述第一信息;
所述网络设备通过广播消息或无线资源控制RRC信令发送所述第一信息;
所述组头终端通过SCI或者PC5-RRC信令向所述终端设备发送所述第一信息。
可选地,在一些实施例中,上述通信模块可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述确定模块可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备400可对应于本申请方法实施例中的终端设备,并且终端设备400中的各个单元的上述和其它操作和/或功能分别为了实现前述实施例中第一终端的相应流程,为了简洁,在此不再赘述。
图14示出了根据本申请实施例的终端设备500的示意性框图。如图14所示,该终端设备500包括:
通信模块510,用于在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;
确定模块520,用于在所述N个频域资源中确定M个频域资源,其中,M为正整数,且M<N;
所述通信模块510还用于在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息。
可选地,在本申请一些实施例中,所述确定模块520还用于:
根据所述N个频域资源上的资源池的信道繁忙率CBR,所述N个频域资源上的侧行数据信道的测量结果,所述N个侧行数据信道的发送时间,所述N个频域资源的索引,以及第一信息中的至少一项,在所述N个频域资源中确定所述M个频域资源,其中,所述第一信息用于指示用于传输侧行反馈信息的目标频域资源。
可选地,在本申请一些实施例中,所述确定模块520具体用于:
确定所述M个频域资源包括N个频域资源上CBR最低的M个频域资源;或者
若所述测量结果为侧行数据信道的参考信号接收功率RSRP的测量结果,确定所述M个频域资源包括N个频域资源上的测量的RSRP最高的M个频域资源;或者
确定所述M个频域资源包括所述N个侧行数据信道中发送时间最晚的一个侧行数据信道对应的频域资源;或者
确定所述M个频域资源包括所述N个频域资源中索引最小的M个频域资源;或者
确定所述M个频域资源包括所述第一信息指示的频域资源;或者
若所述频域资源为载波,确定所述M个频域资源包括所述N个频域资源中的主载波;或者
若所述频域资源为BWP,确定所述M个频域资源包括主载波对应的BWP。
可选地,在本申请一些实施例中,所述第一信息是所述第二终端发送给所述终端设备的;或者
所述第一信息是网络设备发送给所述终端设备的;或者
所述第一信息是组头终端发送给所述终端设备的。
可选地,在本申请一些实施例中,所述第二终端通过侧行控制信息SCI或者PC5-RRC信令向所述终端设备发送所述第一信息;
所述网络设备通过广播消息或无线资源控制RRC信令发送所述第一信息;
所述组头终端通过SCI或者PC5-RRC信令向所述终端设备发送所述第一信息。
可选地,在本申请一些实施例中,所述通信模块具体用于:
在所述M个频域资源中的每个频域资源上发送一个侧行反馈信道,其中,每个侧行反馈信道中承载所述N个侧行数据信道的侧行反馈信息。
可选地,在本申请一些实施例中,若所述N个侧行数据信道传输的是相同的数据,所述N个侧行数据信道的侧行反馈信息为所述相同的数据对应的一个侧行反馈信息;或者,
若所述N个侧行数据信道传输的是不同的数据,所述N个侧行数据信道的侧行反馈信息包括所述不同的数据中的每个数据对应的侧行反馈信息。
可选地,在本申请一些实施例中,若所述N个侧行数据信道传输的是相同的数据, 所述相同的数据对应的侧行反馈信息是根据所述N个侧行数据信道的合并译码结果确定的。
可选地,在一些实施例中,上述通信模块可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述确定模块可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备500可对应于本申请方法实施例中的终端设备,并且终端设备500中的各个单元的上述和其它操作和/或功能分别为了实现前述实施例中第一终端的相应流程,为了简洁,在此不再赘述。
图15是本申请实施例提供的一种通信设备600示意性结构图。图15所示的通信设备600包括处理器610,处理器610可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图15所示,通信设备600还可以包括存储器620。其中,处理器610可以从存储器620中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。
可选地,如图15所示,通信设备600还可以包括收发器630,处理器610可以控制该收发器630与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备600具体可为本申请实施例的网络设备,并且该通信设备600可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备600具体可为本申请实施例的移动终端/终端设备,并且该通信设备600可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
图16是本申请实施例的芯片的示意性结构图。图16所示的芯片700包括处理器710,处理器710可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图16所示,芯片700还可以包括存储器720。其中,处理器710可以从存储器720中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器720可以是独立于处理器710的一个单独的器件,也可以集成在处理器710中。
可选地,该芯片700还可以包括输入接口730。其中,处理器710可以控制该输入接口730与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该芯片700还可以包括输出接口740。其中,处理器710可以控制该输出接口740与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该芯片可应用于本申请实施例中的网络设备,并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该芯片可应用于本申请实施例中的移动终端/终端设备,并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立 门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的移动终端/终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由移动终端/终端设 备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。
Claims (39)
- 一种无线通信的方法,其特征在于,包括:第一终端在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;所述第一终端在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息,其中,所述M为正整数,且M≤N。
- 根据权利要求1所述的方法,其特征在于,所述第一终端在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息,包括:所述第一终端在所述M个频域资源中的每个频域资源上发送一个侧行反馈信道,其中,每个侧行反馈信道中承载所述N个侧行数据信道的侧行反馈信息。
- 根据权利要求2所述的方法,其特征在于,若所述N个侧行数据信道中传输的是相同的数据,所述N个侧行数据信道的侧行反馈信息为所述相同的数据对应的一个侧行反馈信息;或者,若所述N个侧行数据信道传输的是不同的数据,所述N个侧行数据信道的侧行反馈信息包括所述不同的数据中的每个数据对应的侧行反馈信息。
- 根据权利要求3所述的方法,其特征在于,若所述N个侧行数据信道传输的是相同的数据,所述相同的数据对应的侧行反馈信息是根据所述N个侧行数据信道的合并译码结果确定的。
- 根据权利要求1至4中任一项所述的方法,其特征在于,所述方法还包括:在所述N个频域资源中确定所述M个频域资源,其中,M<N。
- 根据权利要求5所述的方法,其特征在于,所述在所述N个频域资源中确定所述M个频域资源,包括:根据所述N个频域资源上的资源池的信道繁忙率CBR,所述N个频域资源上的侧行数据信道的测量结果,所述N个侧行数据信道的发送时间,所述N个频域资源的索引,以及第一信息中的至少一项,在所述N个频域资源中确定所述M个频域资源,其中,所述第一信息用于指示用于传输侧行反馈信息的目标频域资源。
- 根据权利要求6所述的方法,其特征在于,所述根据所述N个频域资源上的资源池的信道繁忙率CBR,所述N个频域资源上的侧行数据信道的测量结果,所述N个侧行数据信道的发送时间,所述N个频域资源的索引,以及第一信息中的至少一项,在所述N个频域资源中确定所述M个频域资源,其中,所述第一信息用于指示用于传输侧行反馈信息的目标频域资源,包括:确定所述M个频域资源包括N个频域资源上CBR最低的M个频域资源;或者若所述测量结果为侧行数据信道的参考信号接收功率RSRP的测量结果,确定所述M个频域资源包括N个频域资源上的测量的RSRP最高的M个频域资源;或者确定所述M个频域资源包括所述N个侧行数据信道中发送时间最晚的一个侧行数据信道对应的频域资源;或者确定所述M个频域资源包括所述N个频域资源中索引最小的M个频域资源;或者确定所述M个频域资源包括所述第一信息指示的频域资源;或者若所述频域资源为载波,确定所述M个频域资源包括所述N个频域资源中的主载波;或者若所述频域资源为BWP,确定所述M个频域资源包括主载波对应的BWP。
- 根据权利要求6或7所述的方法,其特征在于,所述第一信息是所述第二终端发送给所述第一终端的;或者所述第一信息是网络设备发送给所述第一终端的;或者所述第一信息是组头终端发送给所述第一终端的。
- 根据权利要求8所述的方法,其特征在于,所述第二终端通过侧行控制信息SCI 或者PC5-RRC信令向所述第一终端发送所述第一信息;所述网络设备通过广播消息或无线资源控制RRC信令发送所述第一信息;所述组头终端通过SCI或者PC5-RRC信令向所述第一终端发送所述第一信息。
- 一种无线通信的方法,其特征在于,包括:第一终端在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;所述第一终端在所述N个频域资源中确定M个频域资源,其中,M为正整数,且M<N;所述第一终端在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息。
- 根据权利要求10所述的方法,其特征在于,所述第一终端在所述N个频域资源中确定M个频域资源,包括:根据所述N个频域资源上的资源池的信道繁忙率CBR,所述N个频域资源上的侧行数据信道的测量结果,所述N个侧行数据信道的发送时间,所述N个频域资源的索引,以及第一信息中的至少一项,在所述N个频域资源中确定所述M个频域资源,其中,所述第一信息用于指示用于传输侧行反馈信息的目标频域资源。
- 根据权利要求11所述的方法,其特征在于,所述根据所述N个频域资源上的资源池的信道繁忙率CBR,所述N个频域资源上的侧行数据信道的测量结果,所述N个侧行数据信道的发送时间,所述N个频域资源的索引,以及第一信息中的至少一项,在所述N个频域资源中确定所述M个频域资源,其中,所述第一信息用于指示用于传输侧行反馈信息的目标频域资源,包括:确定所述M个频域资源包括N个频域资源上CBR最低的M个频域资源;或者若所述测量结果为侧行数据信道的参考信号接收功率RSRP的测量结果,确定所述M个频域资源包括N个频域资源上的测量的RSRP最高的M个频域资源;或者确定所述M个频域资源包括所述N个侧行数据信道中发送时间最晚的一个侧行数据信道对应的频域资源;或者确定所述M个频域资源包括所述N个频域资源中索引最小的M个频域资源;或者确定所述M个频域资源包括所述第一信息指示的频域资源;或者若所述频域资源为载波,确定所述M个频域资源包括所述N个频域资源中的主载波;或者若所述频域资源为BWP,确定所述M个频域资源包括主载波对应的BWP。
- 根据权利要求11或12所述的方法,其特征在于,所述第一信息是所述第二终端发送给所述第一终端的;或者所述第一信息是网络设备发送给所述第一终端的;或者所述第一信息是组头终端发送给所述第一终端的。
- 根据权利要求13所述的方法,其特征在于,所述第二终端通过侧行控制信息SCI或者PC5-RRC信令向所述第一终端发送所述第一信息;所述网络设备通过广播消息或无线资源控制RRC信令发送所述第一信息;所述组头终端通过SCI或者PC5-RRC信令向所述第一终端发送所述第一信息。
- 根据权利要求10至14中任一项所述的方法,其特征在于,所述第一终端在所述M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息,包括:所述第一终端在所述M个频域资源中的每个频域资源上发送一个侧行反馈信道,其中,每个侧行反馈信道中承载所述N个侧行数据信道的侧行反馈信息。
- 根据权利要求15所述的方法,其特征在于,若所述N个侧行数据信道传输的是相同的数据,所述N个侧行数据信道的侧行反馈信息为所述相同的数据对应的一个侧行反馈信息;或者,若所述N个侧行数据信道传输的是不同的数据,所述N个侧行数据信道的侧行反馈 信息包括所述不同的数据中的每个数据对应的侧行反馈信息。
- 根据权利要求16所述的方法,其特征在于,若所述N个侧行数据信道传输的是相同的数据,所述相同的数据对应的侧行反馈信息是根据所述N个侧行数据信道的合并译码结果确定的。
- 一种终端设备,其特征在于,包括:通信模块,用于在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;确定模块,用于在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息,其中,所述M为正整数,且M≤N。
- 根据权利要求18所述的终端设备,其特征在于,所述通信模块还用于:所述终端设备在所述M个频域资源中的每个频域资源上发送一个侧行反馈信道,其中,每个侧行反馈信道中承载所述N个侧行数据信道的侧行反馈信息。
- 根据权利要求19所述的终端设备,其特征在于,若所述N个侧行数据信道中传输的是相同的数据,所述N个侧行数据信道的侧行反馈信息为所述相同的数据对应的一个侧行反馈信息;或者,若所述N个侧行数据信道传输的是不同的数据,所述N个侧行数据信道的侧行反馈信息包括所述不同的数据中的每个数据对应的侧行反馈信息。
- 根据权利要求20所述的终端设备,其特征在于,若所述N个侧行数据信道传输的是相同的数据,所述相同的数据对应的侧行反馈信息是根据所述N个侧行数据信道的合并译码结果确定的。
- 根据权利要求18至21中任一项所述的终端设备,其特征在于,所述确定模块还用于:在所述N个频域资源中确定所述M个频域资源,其中,M<N。
- 根据权利要求22所述的终端设备,其特征在于,所述确定模块具体用于:根据所述N个频域资源上的资源池的信道繁忙率CBR,所述N个频域资源上的侧行数据信道的测量结果,所述N个侧行数据信道的发送时间,所述N个频域资源的索引,以及第一信息中的至少一项,在所述N个频域资源中确定所述M个频域资源,其中,所述第一信息用于指示用于传输侧行反馈信息的目标频域资源。
- 根据权利要求23所述的终端设备,其特征在于,所述确定模块具体用于:确定所述M个频域资源包括N个频域资源上CBR最低的M个频域资源;或者若所述测量结果为侧行数据信道的参考信号接收功率RSRP的测量结果,确定所述M个频域资源包括N个频域资源上的测量的RSRP最高的M个频域资源;或者确定所述M个频域资源包括所述N个侧行数据信道中发送时间最晚的一个侧行数据信道对应的频域资源;或者确定所述M个频域资源包括所述N个频域资源中索引最小的M个频域资源;或者确定所述M个频域资源包括所述第一信息指示的频域资源;或者若所述频域资源为载波,确定所述M个频域资源包括所述N个频域资源中的主载波;或者若所述频域资源为BWP,确定所述M个频域资源包括主载波对应的BWP。
- 根据权利要求23或24所述的终端设备,其特征在于,所述第一信息是所述第二终端发送给所述终端设备的;或者所述第一信息是网络设备发送给所述终端设备的;或者所述第一信息是组头终端发送给所述终端设备的。
- 根据权利要求25所述的终端设备,其特征在于,所述第二终端通过侧行控制信息SCI或者PC5-RRC信令向所述终端设备发送所述第一信息;所述网络设备通过广播消息或无线资源控制RRC信令发送所述第一信息;所述组头终端通过SCI或者PC5-RRC信令向所述终端设备发送所述第一信息。
- 一种终端设备,其特征在于,包括:通信模块,用于在N个频域资源上接收第二终端发送的N个侧行数据信道,其中,所述N个频域资源和所述N个侧行数据信道一一对应,所述N为大于1的整数,所述频域资源为载波或带宽部分BWP;确定模块,用于在所述N个频域资源中确定M个频域资源,其中,M为正整数,且M<N;所述通信模块还用于在M个频域资源上向所述第二终端发送所述N个侧行数据信道的侧行反馈信息。
- 根据权利要求27所述的终端设备,其特征在于,所述确定模块还用于:根据所述N个频域资源上的资源池的信道繁忙率CBR,所述N个频域资源上的侧行数据信道的测量结果,所述N个侧行数据信道的发送时间,所述N个频域资源的索引,以及第一信息中的至少一项,在所述N个频域资源中确定所述M个频域资源,其中,所述第一信息用于指示用于传输侧行反馈信息的目标频域资源。
- 根据权利要求28所述的终端设备,其特征在于,所述确定模块具体用于:确定所述M个频域资源包括N个频域资源上CBR最低的M个频域资源;或者若所述测量结果为侧行数据信道的参考信号接收功率RSRP的测量结果,确定所述M个频域资源包括N个频域资源上的测量的RSRP最高的M个频域资源;或者确定所述M个频域资源包括所述N个侧行数据信道中发送时间最晚的一个侧行数据信道对应的频域资源;或者确定所述M个频域资源包括所述N个频域资源中索引最小的M个频域资源;或者确定所述M个频域资源包括所述第一信息指示的频域资源;或者若所述频域资源为载波,确定所述M个频域资源包括所述N个频域资源中的主载波;或者若所述频域资源为BWP,确定所述M个频域资源包括主载波对应的BWP。
- 根据权利要求28或29所述的终端设备,其特征在于,所述第一信息是所述第二终端发送给所述终端设备的;或者所述第一信息是网络设备发送给所述终端设备的;或者所述第一信息是组头终端发送给所述终端设备的。
- 根据权利要求30所述的终端设备,其特征在于,所述第二终端通过侧行控制信息SCI或者PC5-RRC信令向所述终端设备发送所述第一信息;所述网络设备通过广播消息或无线资源控制RRC信令发送所述第一信息;所述组头终端通过SCI或者PC5-RRC信令向所述终端设备发送所述第一信息。
- 根据权利要求27至31中任一项所述的终端设备,其特征在于,所述通信模块具体用于:在所述M个频域资源中的每个频域资源上发送一个侧行反馈信道,其中,每个侧行反馈信道中承载所述N个侧行数据信道的侧行反馈信息。
- 根据权利要求32所述的终端设备,其特征在于,若所述N个侧行数据信道传输的是相同的数据,所述N个侧行数据信道的侧行反馈信息为所述相同的数据对应的一个侧行反馈信息;或者,若所述N个侧行数据信道传输的是不同的数据,所述N个侧行数据信道的侧行反馈信息包括所述不同的数据中的每个数据对应的侧行反馈信息。
- 根据权利要求33所述的终端设备,其特征在于,若所述N个侧行数据信道传输的是相同的数据,所述相同的数据对应的侧行反馈信息是根据所述N个侧行数据信道的合并译码结果确定的。
- 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至9中任一项所述的方法,或如权利要求10至17中任一项所述的方法。
- 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程 序,使得安装有所述芯片的设备执行如权利要求1至9中任一项所述的方法,或如权利要求10至17中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至9中任一项所述的方法,或如权利要求10至17中任一项所述的方法。
- 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至9中任一项所述的方法,或如权利要求10至17中任一项所述的方法。
- 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至9中任一项所述的方法,或如权利要求10至17中任一项所述的方法。
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