WO2022213328A1 - 侧行链路资源配置的方法和通信装置 - Google Patents

侧行链路资源配置的方法和通信装置 Download PDF

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Publication number
WO2022213328A1
WO2022213328A1 PCT/CN2021/085991 CN2021085991W WO2022213328A1 WO 2022213328 A1 WO2022213328 A1 WO 2022213328A1 CN 2021085991 W CN2021085991 W CN 2021085991W WO 2022213328 A1 WO2022213328 A1 WO 2022213328A1
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WIPO (PCT)
Prior art keywords
time slot
information
psfch
feedback
period
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PCT/CN2021/085991
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English (en)
French (fr)
Inventor
范巍巍
焦春旭
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21935558.3A priority Critical patent/EP4301011A1/en
Priority to CN202180095671.9A priority patent/CN116982327A/zh
Priority to PCT/CN2021/085991 priority patent/WO2022213328A1/zh
Publication of WO2022213328A1 publication Critical patent/WO2022213328A1/zh
Priority to US18/478,935 priority patent/US20240032069A1/en

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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
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink

Definitions

  • the present application relates to the field of communication, and more particularly, to a method and a communication device for sidelink resource configuration.
  • D2D network communication technology refers to a communication method in which two user nodes communicate directly.
  • D2D technology can be divided into D2D technologies that work in licensed frequency bands, such as new radio access technology-vehicle to X (NR-V2X), etc., and D2D technologies that work in licensed frequency bands.
  • D2D technology in unlicensed frequency bands such as wireless network (Wi-Fi), Bluetooth technology, etc.
  • resource pool for D2D communication, that is, the base station will configure some common time-frequency for D2D transmission through RRC signaling. resource.
  • the resource pool configured in NR-V2X only supports data transmission in one direction.
  • the time-frequency resources of the resource pool are periodic, and there are fixed gaps between the sidelink time slots in the resource pool, which is suitable for fast feedback demodulation.
  • the result is the IoV scenario of periodic small package business. Since the resource pool configured in the current NR-V2X is not flexible enough, it is not suitable for large-package aperiodic services, such as AR/VR data transmission scenarios.
  • the transmitting node needs to monitor the busy and idle states of the channel. Only when the channel is idle, the node can access the channel for signal transmission, so the resource allocation method of the fixed resource pool is not suitable for unlicensed. frequency band.
  • the present application provides a method and a communication device for sidelink resource configuration, which can realize flexible D2D resource configuration.
  • a method for configuring sidelink resources is provided, which can be applied to the first terminal device, and can also be applied to components in the first terminal device (for example, a chip, a chip system, or a processor, etc.), including: Receive first side row control information SCI on the first time slot, the first SCI includes first indication information, the first indication information indicates whether there is a blank symbol in the first time slot, and the blank symbol is located in the The last N symbols of the first time slot, N is a natural number; according to the first indication information, it is determined whether there are blank symbols in the first time slot.
  • the first terminal device Since the first terminal device is used to receive the first SCI, the first terminal device can be understood as a receiving end device in this method.
  • the receiving end can monitor the busy and idle states of the channel on the blank symbols of the first time slot and perform transceiver switching, thereby realizing COT sharing of unlicensed frequency bands.
  • the existence of blank symbols in each time slot may have no effect on data transmission, but for the scenario of continuously sending large data, some The transmission time of large data packets may occupy multiple consecutive time slots. The extra reservation of blank symbols in each time slot will cause the data packets to be unable to be sent continuously due to the existence of blank symbols, resulting in waste of resources.
  • the last N symbols of the first time slot are not blank symbols, the requirement for continuous transmission of some large data packets can be met.
  • the structure of the COT frame preempted by the sender on the unlicensed frequency band is TTTTRRR, and each T or R corresponds to a time slot, wherein the sender sends the sidelink information on the time slot corresponding to T, and the receiver
  • the sidelink information is received on the timeslot corresponding to R, and the timeslot configured as R in the COT can be shared with the receiving end for sending sidelink information.
  • the transmitting end can reserve several blank symbols for the receiving end in the last T time slot of the COT frame structure so that the receiving end can monitor the busy and idle states of the channel.
  • the end can share the R time slot in the COT frame structure, that is, the receiving end can send sidelink information on the R time slot.
  • the method further includes: if the first indication information indicates that there is a blank symbol in the first time slot, the first terminal device according to the first The indication information and the subcarrier spacing of the first time slot determine the number N of the blank symbols in the first time slot.
  • the subcarrier spacing of the first time slot is 15 kHz or 30 kHz, and the number N of blank symbols is 1; or, the first time slot The subcarrier spacing is 60kHz, and the number N of blank symbols is 2.
  • a method for configuring sidelink resources is provided, which can be applied to a second terminal device, and can also be applied to components in the second terminal device (such as a chip, a chip system, or a processor, etc.), including: Determine first indication information, the first indication information is carried in the first sideline control information SCI, the first indication information indicates whether there is a blank symbol in the first time slot, and the blank symbol is located in the first time slot The last N symbols of the slot, N is a natural number; the first SCI is sent on the first time slot.
  • the second terminal device Since the second terminal device is used to send the first SCI, the second terminal device can be understood as a sending end device in this method.
  • the method further includes: the second terminal device determines the number N of the blank symbols in the first time slot according to the subcarrier spacing of the first time slot .
  • the subcarrier spacing of the first time slot is 15 kHz or 30 kHz, and the number N of blank symbols is 1; or, the first time slot The subcarrier spacing is 60kHz, and the number N of blank symbols is 2.
  • a method for configuring sidelink resources is provided, which can be applied to the first terminal device, and can also be applied to components in the first terminal device (for example, a chip, a chip system, or a processor, etc.), including: receiving first sideline control information SCI, wherein the first SCI includes first indication information, and the first indication information indicates the position of the first time slot and/or the second time slot in the plurality of time slots, and the first time slot is used to receive the first sidelink information, and the second time slot is used to send the second sidelink information; according to the first time slot, among the plurality of time slots
  • the first feedback time slot is determined according to the position and the first cycle of the second time slot
  • the second feedback time slot is determined according to the position of the second time slot in the plurality of time slots and the second cycle, and the first cycle is the first feedback time slot.
  • the period of the timeslot in the first timeslot, the first feedback timeslot includes a first physical sideline feedback channel PSFCH, the first PSFCH is used to send the first HARQ information, the
  • the second period is the period of the second feedback time slot in the second time slot, and the second feedback time slot includes a second physical sideline feedback channel PSFCH, and the second PSFCH is used to receive the second HARQ information;
  • the first sidelink information is received on the first time slot, or the second sidelink information is sent on the second time slot.
  • the first terminal device Since the first terminal device is used to receive the first SCI, the first terminal device can be understood as a receiving end device in this method.
  • the first terminal device obtains the position of the first time slot and/or the second time slot in the multiple time slots indicated by the first indication information, and the information of the first period and/or the second period, It is possible to identify which time slots to send and/or receive data on, and on which time slots to send and/or receive feedback information.
  • the COT frame structure preempted by the sender on the unlicensed frequency band is TTTTRRRRTT, and each T or R corresponds to a time slot (assuming that the COT corresponds to time slot #0 to time slot 9), where the sender corresponds to T
  • the sidelink information is sent on the time slot corresponding to R, the receiving end receives the sidelink information on the time slot corresponding to R, and the time slot configured as R in the COT can be shared with the receiving end for sending sidelink information.
  • the receiving end receives the COT frame structure information (ie the position of the first time slot and/or the second time slot in multiple time slots) carried in the SCI from the transmitting end, the COT frame
  • the period (ie, the first period) of the timeslot where the PSFCH exists in the timeslot where T is T and/or the period (ie, the second period) of the timeslot where the PSFCH exists among the timeslots where the COT is R.
  • the receiving end can determine that there is a time slot containing PSFCH every 3 time slots starting from time slot #0 for all time slots of T in the COT, that is, a time slot containing PSFCH It is time slot #2 and time slot #9; the existence of the second period is 2, then the sender can determine that there is a time slot containing PSFCH every 2 time slots starting from time slot #4 for all time slots that are R in the COT. Slots, that is, the time slots where the PSFCH exists are time slot #5 and time slot #7.
  • the first period or the second period is carried in the first SCI or higher layer signaling.
  • a method for configuring sidelink resources is provided, which can be applied to the second terminal device, and can also be applied to components in the second terminal device (for example, a chip, a chip system, or a processor, etc.), including: Sending first sideline control information SCI, wherein the first SCI includes first indication information, and the first indication information indicates the position of the first time slot and/or the second time slot in the plurality of time slots, so the first time slot is used for transmitting the first sidelink information, and the second time slot is used for receiving the second sidelink information; according to the first time slot, among the plurality of time slots
  • the first feedback time slot is determined according to the position and the first cycle of the second time slot
  • the second feedback time slot is determined according to the position of the second time slot in the plurality of time slots and the second cycle
  • the first cycle is the period of the first feedback time slot in the first time slot
  • the first feedback time slot includes the first physical sideline feedback channel PSFCH
  • the first PSFCH is used to receive the first
  • the second terminal device Since the second terminal device is used to send the first SCI, the second terminal device can be understood as a sending end device in this method.
  • the first period or the second period is carried in the first SCI or higher layer signaling.
  • a method for configuring sidelink resources is provided, which can be applied to the first terminal device, and can also be applied to components in the first terminal device (for example, a chip, a chip system, or a processor, etc.), including: The first terminal device receives the first sideline control information SCI on the first time slot, wherein the first sideline control signal SCI includes first indication information and a first period, and the first indication information is used to indicate the first sideline control information SCI.
  • the direction of each time slot in the channel occupancy time COT obtained by the second terminal device is the corresponding sending or receiving sidelink information when the second terminal device uses each time slot direction
  • the first cycle is the cycle of the time slot in which the PSFCH exists in the time slot used by the second terminal device to send sidelink information in the COT
  • the first time slot is the second time slot.
  • the first terminal equipment receives the first sidelink information from the second terminal equipment within the COT; the first terminal equipment The terminal device determines the position of the second time slot according to the position information corresponding to the time slot in the COT used by the second terminal device to send the sidelink signal and the first period, and the second time slot is the In the COT, there is a time slot of the PSFCH in the time slot used by the second terminal device to send the sidelink information; the first terminal device sends a message to the second terminal device on the PSFCH of the corresponding second time slot.
  • Send first HARQ information where the first HARQ information includes a demodulation result of the first sidelink information.
  • the first sideline control signal SCI further includes a first minimum time interval
  • the first terminal device sends a signal to the PSFCH in the corresponding second time slot.
  • the sending, by the second terminal device, the first HARQ information includes: the first terminal device sending the first HARQ information to the second terminal device on the PSFCH of the corresponding first time slot according to the first minimum time interval.
  • HARQ information, wherein the first minimum time interval is the minimum time interval during which the first terminal device performs HARQ feedback on the first sidelink.
  • the first sideline control signal SCI further includes a second period, and the second period is used by the second terminal device in the COT for receiving There is a time slot period of the PSFCH in the time slot of the sidelink signal; the method further includes: the first terminal device corresponds to the time slot used by the second terminal device to receive the sidelink information in the COT The location information and the second period determine the location of the third time slot, where the third time slot is the time when the PSFCH exists in the time slot in the COT used by the second terminal device to receive sidelink information slot; the first terminal device sends the second sidelink information to the second terminal device in the COT; the first terminal device sends information from the second terminal on the PSFCH of the corresponding third time slot The device acquires second HARQ information, where the second HARQ information includes a demodulation result of the second sidelink information.
  • a method for configuring sidelink resources which can be applied to the second terminal device, and can also be applied to components in the second terminal device (for example, a chip, a chip system, or a processor, etc.), including: The second terminal device sends first sideline control information SCI on the first time slot, where the first sideline control signal SCI includes first indication information and a first period, and the first indication information is used to indicate the second terminal
  • the direction of each time slot in the COT obtained by the device, the direction of each time slot is the direction of the corresponding sending or receiving side link information when the second terminal device uses the each time slot, the The first period is the period in which the time slot of the PSFCH exists in the time slot used by the second terminal device for sending sidelink information in the COT, and the first time slot is the time slot used by the second terminal device to send one of the time slots of the sidelink information;
  • the second terminal device sends the first sidelink information to the first terminal device within the COT; the second terminal device according to the COT
  • the second terminal device obtains the first HARQ information from the first terminal device on the PSFCH of the corresponding second time slot,
  • the first HARQ information includes a demodulation result of the first sidelink.
  • the first sideline control information SCI further includes a second period, and the second period is used by the second terminal device in the COT for receiving There is a time slot period of the PSFCH in the time slot of the side link information; the method further includes: the second terminal device according to the time slot used by the second terminal device to receive the side link information in the COT The corresponding position information and the second period determine the position of the third time slot, where the third time slot is the time slot in the COT that is used by the second terminal device for receiving sidelink information and there is a PSFCH.
  • the second terminal device receives the second sidelink information from the first terminal device in the COT; the second terminal device sends the information to the first terminal device on the PSFCH of the corresponding third time slot
  • a terminal device sends second HARQ information, where the second HARQ information includes a demodulation result of the second sidelink.
  • the first sideline control signal SCI further includes a second minimum time interval
  • the second terminal device sends a signal to the PSFCH in the corresponding third time slot.
  • the sending, by the first terminal device, the second HARQ information includes: the second terminal device sending the second terminal device to the first terminal device on the PSFCH of the corresponding third time slot according to the second minimum time interval.
  • HARQ information, wherein the second minimum time interval is the minimum time interval during which the second terminal device performs HARQ feedback on the second sidelink.
  • the present application provides a communication device, the communication device has the function of implementing the method in the first aspect or any possible implementation manner thereof, or the function of implementing the method in the third aspect or any possible implementation manner thereof, Or implement the functions of the method in the fifth aspect or any possible implementation manners thereof.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the communication apparatus may be a first terminal device.
  • the communication device may be a component (eg, a chip or an integrated circuit) installed in the first terminal device.
  • the present application provides a communication device, the communication device has the function of implementing the method in the second aspect or any possible implementation manner thereof, or the function of implementing the method in the fourth aspect or any possible implementation manner thereof, Or implement the functions of the method in the sixth aspect or any possible implementation manners thereof.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the communication apparatus may be a second terminal device.
  • the communication device may be a component (eg, a chip or an integrated circuit) installed in the second terminal device.
  • the present application provides a communication device, comprising at least one processor, at least one processor coupled to at least one memory, at least one memory for storing computer programs or instructions, and at least one processor for calling from at least one memory and run the computer program or instructions, so that the communication device performs the method in the first aspect or any possible implementation thereof, or performs the method in the third aspect or any possible implementation thereof, or performs the fifth aspect or any possible implementation thereof methods in possible implementations.
  • the communication apparatus may be a first terminal device.
  • the communication device may be a component (eg, a chip or an integrated circuit) installed in the first terminal device.
  • the present application provides a communication device, comprising at least one processor, at least one processor coupled to at least one memory, at least one memory for storing computer programs or instructions, and at least one processor for calling from the at least one memory and run the computer program or instruction, so that the communication device performs the method in the second aspect or any possible implementation manner thereof, or performs the method in the fourth aspect or any possible implementation manner thereof, or performs the sixth aspect or any possible implementation manner thereof methods in possible implementations, .
  • the communication apparatus may be a second terminal device.
  • the communication device may be a component (eg, a chip or an integrated circuit) installed in the second terminal device.
  • a processor comprising: an input circuit, an output circuit and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the method in the first aspect or any possible implementation thereof is realized, or the third aspect or any possible implementation thereof is realized.
  • the method of the fifth aspect or any possible implementation thereof is implemented or caused to be implemented.
  • the above-mentioned processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter
  • the circuit can be the same circuit that acts as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a twelfth aspect provides a processor including: an input circuit, an output circuit and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the method in the second aspect or any possible implementation thereof is realized, or the fourth aspect or any possible implementation thereof is realized A method of the sixth aspect or any possible implementation thereof is implemented or caused to be implemented.
  • the above-mentioned processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter
  • the circuit can be the same circuit that acts as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • the present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on a computer, the first aspect or any possible implementation manner thereof is implemented.
  • the method in is performed, or causes the method as in the third aspect or any possible implementation thereof to be performed, or causes the method as in the fifth aspect or any possible implementation thereof to be performed.
  • the present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on a computer, the second aspect or any possible implementation manner thereof is implemented.
  • the method in is performed, or causes the method as in the fourth aspect or any possible implementation thereof to be performed, or causes the method as in the sixth aspect or any possible implementation thereof to be performed.
  • the present application provides a computer program product, the computer program product comprising computer program code, when the computer program code is run on a computer, the computer program code, as in the first aspect or any possible implementations thereof, is provided.
  • the method is performed, or causes the method as in the third aspect or any possible implementation thereof to be performed, or causes the method as in the fifth aspect or any possible implementation thereof to be performed.
  • the present application provides a computer program product, the computer program product comprising computer program code, when the computer program code is run on a computer, as in the second aspect or any possible implementations thereof
  • the method is performed, or causes the method as in the fourth aspect or any possible implementation thereof to be performed, or causes the method as in the sixth aspect or any possible implementation thereof to be performed.
  • the present application provides a chip, comprising a processor and a communication interface, the communication interface is used for receiving a signal and transmitting the signal to the processor, and the processor processes the signal to cause the method as in the first aspect or any possible implementation thereof to be performed, or, to cause the method as in the third aspect or any possible implementation thereof to be performed, or to cause the fifth aspect or any of the possible implementations thereof
  • the methods in the possible implementations are executed.
  • the present application provides a chip, comprising a processor and a communication interface, the communication interface is used for receiving a signal and transmitting the signal to the processor, and the processor processes the signal to to cause the method as in the second aspect or any possible implementation thereof to be performed, or to cause the method as in the fourth aspect or any possible implementation thereof to be performed, or to cause the sixth aspect or any of the possible implementations thereof to be performed
  • the methods in the possible implementations are executed.
  • the present application provides a communication system, including the communication device described in the ninth aspect and the communication device described in the tenth aspect.
  • FIG. 1 is a schematic diagram of a communication system 100 suitable for an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a resource pool configuration method in NR-V2X.
  • FIG. 3 is a schematic diagram of the structure of a sidelink time slot provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for sidelink resource configuration proposed in the present application.
  • FIG. 5 is a schematic diagram of a pattern of blank symbols reserved when the subcarrier spacing of the first time slot is 15 kHz, 30 kHz, and 60 kHz according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a frame structure of a COT preempted by a transmitting end according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a resource configuration manner of the PSFCH channel in NR-V2X.
  • FIG. 8 is a schematic flowchart of another method for configuring sidelink resources proposed in this application.
  • FIG. 9 is a schematic diagram of a frame structure of another COT preempted by a transmitting end according to an embodiment of the present application.
  • FIG. 10 is a schematic flowchart of yet another method for configuring sidelink resources proposed in this application.
  • FIG. 11 is a schematic diagram of a pattern of blank symbols reserved when the subcarrier spacing of a time slot in which a PSFCH resource exists according to an embodiment of the present application is 15 kHz, 30 kHz, and 60 kHz.
  • FIG. 12 is a schematic block diagram of a communication apparatus 1000 provided by this application.
  • FIG. 13 is a schematic block diagram of a communication apparatus 2000 provided by this application.
  • FIG. 14 is a schematic structural diagram of the communication device 10 provided by this application.
  • FIG. 15 is a schematic structural diagram of a communication device 20 provided by the present application.
  • the technical solutions provided in this application can be applied to various communication systems, such as: long term evolution (LTE) system, worldwide interoperability for microwave access (WiMAX) communication system, 5th Generation (5th Generation, 5G) mobile communication system or new radio access technology (NR).
  • LTE long term evolution
  • WiMAX worldwide interoperability for microwave access
  • 5G 5th Generation
  • NR new radio access technology
  • the 5G mobile communication system may include a non-standalone (NSA, NSA) and/or an independent network (standalone, SA).
  • the technical solutions provided in this application can also be applied to machine type communication (MTC), device-to-device (device-to-device, D2D) networks, machine-to-machine (machine-to-machine, M2M) networks, Internet of Things (internet) of things, IoT) network or other network.
  • MTC machine type communication
  • D2D device-to-device
  • M2M machine-to-machine
  • IoT Internet of Things
  • the IoT network may include, for example, the Internet of Vehicles.
  • V2X vehicle to other devices
  • V2X vehicle to other devices
  • the V2X may include: vehicle to vehicle (vehicle to vehicle, V2V) communication, vehicle and vehicle Infrastructure (V2I) communication, vehicle to pedestrian (V2P) or vehicle to network (V2N) communication, etc.
  • V2X communication system is a sidelink (SL) transmission technology based on D2D communication.
  • FIG. 1 is a schematic diagram of a communication system 100 applicable to this embodiment of the present application.
  • the communication system 100 may include at least one network device, such as the network device 101 shown in FIG. 1 ; the communication system 100 may also include at least one terminal device, such as the terminal device 102 shown in FIG. 1 . to 107.
  • the terminal devices 102 to 107 may be mobile or stationary.
  • Each of the network device 101 and one or more of the end devices 102 to 107 may communicate over a wireless link.
  • Each network device can provide communication coverage for a specific geographic area and can communicate with terminal devices located within that coverage area.
  • the network device may send configuration information to the terminal device, and the terminal device may send uplink data to the network device based on the configuration information; for another example, the network device may send downlink data to the terminal device. Therefore, the network device 101 and the terminal devices 102 to 107 in FIG. 1 constitute a communication system.
  • D2D technology can be used to realize direct communication between terminal devices.
  • D2D technology can be used for direct communication between terminal devices 105 and 106 and between terminal devices 105 and 107 .
  • Terminal device 106 and terminal device 107 may communicate with terminal device 105 individually or simultaneously.
  • the terminal devices 105 to 107 can also communicate with the network device 101, respectively. For example, it can communicate directly with the network device 101. In the figure, the terminal devices 105 and 106 can communicate directly with the network device 101; it can also communicate with the network device 101 indirectly. In the figure, the terminal device 107 communicates with the network device via the terminal device 105. 101 Communications.
  • FIG. 1 exemplarily shows a network device, a plurality of terminal devices, and communication links between the communication devices.
  • the communication system 100 may include multiple network devices, and the coverage of each network device may include other numbers of terminal devices, such as more or less terminal devices. This application does not limit this.
  • Each of the above communication devices may be configured with multiple antennas.
  • the plurality of antennas may include at least one transmit antenna for transmitting signals and at least one receive antenna for receiving signals.
  • each communication device additionally includes a transmitter chain and a receiver chain, which can be understood by those of ordinary skill in the art, all of which may include multiple components (eg, processors, modulators, multiplexers) related to signal transmission and reception. , demodulator, demultiplexer or antenna, etc.). Therefore, the network device and the terminal device can communicate through the multi-antenna technology.
  • the network device may be any device with a wireless transceiver function.
  • the device includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC) , base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WiFi) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc.
  • evolved Node B evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS home base station
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • It can also be 5G, such as NR , a gNB in the system, or, a transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitutes a gNB or a transmission point, For example, a baseband unit (BBU), or a distributed unit (distributed unit, DU), etc.
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) layer function.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (PHY) layer.
  • RLC radio link control
  • MAC medium access control
  • PHY physical layer.
  • AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas.
  • the higher-layer signaling such as the RRC layer signaling
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.
  • the network equipment provides services for the cell, and the terminal equipment communicates with the cell through transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment, and the cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.) , can also belong to the base station corresponding to the small cell, where the small cell can include: urban cell (metro cell), micro cell (micro cell), pico cell (pico cell), femto cell (femto cell), etc. , these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • a macro base station for example, a macro eNB or a macro gNB, etc.
  • the small cell can include: urban cell (metro cell), micro cell (micro cell), pico cell (pico cell), femto cell (femto cell), etc.
  • these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission
  • a terminal device may also be referred to as user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user equipment.
  • user equipment user equipment
  • UE user equipment
  • an access terminal a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user equipment.
  • the terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • some examples of terminals can be: mobile phone (mobile phone), tablet computer (pad), computer with wireless transceiver function (such as notebook computer, palmtop computer, etc.), mobile internet device (mobile internet device, MID), virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control (industrial control), wireless terminals in unmanned driving (self driving), wireless terminals in remote medical (remote medical) Terminal, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless Telephone, session initiation protocol (SIP) telephone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device, computing device or connection with wireless communication capabilities
  • wearable devices can also be called wearable smart devices, which is a general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.
  • the terminal device may also be a terminal device in an internet of things (Internet of things, IoT) system.
  • IoT Internet of things
  • Its main technical feature is to connect items to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things.
  • IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrow band (NB) technology.
  • Terminal devices can also include sensors such as smart printers, train detectors, and gas stations.
  • the main functions include collecting data (part of terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.
  • the terminal equipment may also be roadside units (RSUs).
  • the RSU is a facility deployed on the roadside for auxiliary communication in the vehicle delay tolerant network. It is directly connected to the backbone network and can communicate wirelessly with the vehicle. Compared with the vehicles in the in-vehicle delay tolerant network, the RSU has better communication capability, coverage and transmission speed, and can communicate with multiple vehicles at the same time. In addition, the RSU has a large storage space, which can store information and improve the probability of communication. Therefore, by deploying the relevant RSUs in the road traffic system, on the one hand, it can effectively solve the problem of Internet access in existing vehicles, and on the other hand, it can also greatly increase the communication opportunities between vehicles. Efficient transfer of messages from car to car.
  • the RSU can be a terminal device, and the RSU can also be a network device.
  • the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which are not limited in this embodiment of the present application.
  • network entities such as a network controller, a mobility management entity, and the like, which are not limited in this embodiment of the present application.
  • LBT Listen before talk
  • each node judges its busy and idle status by the received power on the unlicensed frequency band. If the received power is less than a certain threshold , it is considered that there is no interference source on the unlicensed frequency band and it is in an idle state. Only when the frequency band is idle and not occupied by other network equipment or terminal equipment, the network equipment or terminal equipment can use (preempt) this frequency band (channel), Information and data can then be sent. This mechanism of listening first and then sending is called LBT, which can avoid conflicts between nodes when using unlicensed spectrum resources.
  • COT Channel occupancy period
  • COT sharing a process in which the initial device that preempts the COT can jointly occupy the channel with other devices that interact with the initial device.
  • the initial device that preempts the COT after preempting the channel, is used to send data to other devices in the COT, and will not receive data sent by other devices in the COT.
  • the initial device can send data to other devices during part of the COT period, and in other time periods of the COT, other devices that receive the data can use the COT to send data to the initial device.
  • Data sending, a device that has not received the data sent by the initial device generally cannot use the COT to send data to the initial device.
  • FIG. 2 is a schematic diagram of a resource pool configuration method in NR-V2X provided by an embodiment of the present application.
  • the frequency domain resources used for side link transmission can be composed of several consecutive Physical resource block (physical resource block, PRB) composition.
  • PRB Physical resource block
  • more than one resource pool can be configured, for example: resource pool 1, resource pool 2, each resource pool corresponds to a sending or receiving direction, to indicate that the resource pool is only used for sending Sidelink information or only for receiving sidelink information.
  • the frequency domain position of each resource pool is determined by two parameters, the frequency domain starting position and the bandwidth.
  • the bandwidth is determined by the two parameters, subchannelsize and numsubchannel.
  • the time slots used for D2D transmission are distributed in uplink subframes, and in the time domain, a bit-map can be used to indicate which uplink subframes can be used for sidelink transmission.
  • a bit (bit) 1 indicates that the uplink subframe can be used for sidelink transmission, and a bit (bit) 0 indicates that the uplink subframe cannot be used for sidelink transmission.
  • Other subframes are downlink subframes, for example, subframes used for transmitting System Synchronization/Physical Broadcast Channel (SS/PBCH), etc., cannot be used for sidelink transmission.
  • SS/PBCH System Synchronization/Physical Broadcast Channel
  • FIG. 3 is a schematic diagram of the structure of a sidelink time slot provided by an embodiment of the present application.
  • each grid corresponding to serial numbers 0 to 13 represents a symbol
  • symbols 0 to 13 constitute a time slot, which can be a time slot used for sidelink transmission, and can also be called a sidelink. road time slot.
  • the distribution of channels in a sidelink time slot is shown in Figure 3.
  • the physical side link share channel (PSSCH) is distributed in symbols 4 to 9
  • the physical side link control channel (physical side link share channel, PSSCH) is distributed in symbols 4 to 9.
  • PSCCH side link control channel
  • PSFCH physical side link feedback channel
  • AGC automatic gain control
  • PSCCH/PSSCH is distributed in time In slot 3
  • the ACG of the PSFCH is distributed in symbol 11
  • the interval GAP is distributed in symbol 10 and symbol 13.
  • the base station configures the terminal equipment through the RRC signaling, the number of starting symbols startSLsymbols of the PSSCH and the lengthSLsymbols of the symbols occupied by the PSSCH in one time slot.
  • the PSFCH is behind the PSSCH and is separated by 2 symbols.
  • the two symbols are GAP and AGC, which are respectively used for transceiving conversion and automatic gain control.
  • FIG. 3 only schematically shows a time slot structure including a PSFCH in a sidelink time slot, and some sidelink time slot structures may also not include a PSFCH. Regardless of whether the time slot contains the PSFCH or not, the last symbol of the time slot can be a GAP, and the GAP can also be called a blank symbol.
  • Figures 2 and 3 respectively describe the resource allocation method of the D2D technology in the licensed frequency band and the composition structure of the sidelink time slot. Since the resource pool configured in the current NR-V2X is not flexible enough, it is not suitable for large packets. Aperiodic services, such as AR/VR data transmission scenarios. At the same time, the resource allocation method of the resource pool fixed by the D2D technology in the current licensed frequency band is also not applicable to the unlicensed frequency band.
  • the present application proposes a method for sidelink resource configuration, which can realize flexible D2D resource configuration.
  • FIG. 4 is a schematic flowchart of a method for configuring sidelink resources proposed by the present application.
  • the sending end determines the first indication information.
  • the first indication information is carried in the first sideline control information (sidelink control indication, SCI), the first SCI includes first indication information, the first indication information indicates whether there is a blank symbol in the first time slot, and the blank symbol is located in the first time slot.
  • SCI sidelink control indication
  • the first indication information indicates whether the last N symbols of the first time slot are blank symbols, and N is a natural number.
  • the first indication information indicates whether the last symbol or symbols of the first time slot are blank symbols.
  • the blank symbol means that the terminal device cannot transmit on the symbol, but does not limit the terminal device from being unable to receive on the symbol. Since the symbol cannot be used for transmission, correspondingly, even if the terminal device can receive, it cannot receive any information.
  • the first indication information is 1-bit information, and the first indication information indicates whether the last symbol or last multiple symbols of the first time slot are blank symbols.
  • the first indication information is 0 indicating that no blank symbols are reserved in the first time slot
  • the first indication information is 1 indicating that the last symbol or last multiple symbols of the first time slot are blank symbols
  • Blank symbols can be understood as GAP symbols in Figure 2 or Figure 3 .
  • the first indication information is multi-bit information, and the first indication information indicates that the last N symbols of the first time slot are blank symbols, where N is an integer greater than or equal to 0. It should be understood that since the first indication information is multi-bit information, the first indication information may directly indicate the specific number of reserved blank symbols. For example, the first indication information is 2-bit information, the first indication information is 00, indicating that no blank symbols are reserved in the first time slot, and the first indication information is 10, indicating that the last two symbols of the first time slot are blank symbols , the first indication information is 11 indicating that the last 3 symbols of the first time slot are blank symbols.
  • the transmitting end determines the number of blank symbols to be reserved in the first time slot.
  • the transmitting end determines the number of blank symbols to be reserved in the first time slot according to the subcarrier spacing of the first time slot.
  • FIG. 5 is a schematic diagram of a pattern of blank symbols reserved when the subcarrier spacing of the first time slot is 15 kHz, 30 kHz, and 60 kHz according to an embodiment of the present application.
  • Grids corresponding to #0 to #13 in FIG. 5 respectively correspond to one symbol of the first time slot.
  • the subcarrier interval of the first time slot is 15 kHz or 30 kHz, and the transmitting end reserves the last symbol in the first time slot (that is, the symbol corresponding to #13) as a blank symbol;
  • the subcarrier spacing is 60 kHz, and the transmitting end reserves the last two symbols in the first time slot (that is, the symbols corresponding to #12 and #13) as blank symbols.
  • the subcarrier spacing of the first time slot is 120 kHz, and the transmitting end reserves the last 4 symbols in the first time slot as blank symbols; or, the subcarrier spacing of the first time slot is 240 kHz, and the transmitting end reserves the first The last 8 symbols in the slot are blank symbols.
  • the aforementioned first timeslot is a sidelink timeslot without PSFCH. If there is a PSFCH in the sidelink timeslot, the composition of the sidelink timeslot can be seen in Figure 11. Expand the narrative.
  • the sending end sends the first SCI on the first time slot.
  • the receiving end receives the first SCI on the first time slot.
  • the receiving end determines whether there is a blank symbol in the first time slot according to the first indication information.
  • the first indication information is 1-bit information.
  • the first indication information is 0, indicating that the sender does not reserve a blank symbol in the first time slot, and the first indication information is 1, Indicates that the transmitter reserves the last symbol or symbols in the first time slot as blank symbols.
  • the value of the first indication information is 1, indicating that the sender does not reserve blank symbols in the first time slot, and the value of the first indication information is 0, indicating that the sender reserves the first time slot.
  • the last symbol or symbols are blank symbols.
  • the receiving end may further determine the specific number of blank symbols reserved in the first time slot according to the subcarrier spacing of the first time slot. For the correspondence between the number of blank symbols and the subcarrier spacing, please refer to the previous description, which will not be repeated here. .
  • the sending end and the receiving end in the embodiments of the present application may be terminal devices.
  • the last symbol of the sidelink time slot is a GAP that does not send any signal, and its function is to switch between sending and receiving.
  • the symbols of GAP distribution in sidelink time slots may be understood as blank symbols in this application.
  • the presence of blank symbols in each time slot may have no effect on data transmission, but for the scenario of continuously sending large data, some large
  • the transmission time of the data packet may occupy multiple consecutive time slots, and an extra GAP of one symbol is reserved in each time slot, so that the data packet cannot be continuously sent due to the existence of blank symbols, thereby causing a waste of resources.
  • the receiving end can perform LBT or transceiver switching on the blank symbols of the first time slot, thereby realizing COT sharing of unlicensed frequency bands.
  • the receiving end can send large data packets on the first time slot, so as to realize the continuity of periodic large data packets. send.
  • the receiving end can perform LBT or transceiver switching on the blank symbols of the first time slot, thereby realizing COT sharing of unlicensed frequency bands.
  • the following takes a scenario in which the sender preempts the COT in an unlicensed frequency band as an example, to describe the above technical effects in detail.
  • FIG. 6 is a schematic diagram of a frame structure of a COT preempted by a transmitting end according to an embodiment of the present application.
  • each small square in Figure 6 represents a time slot. It can be seen that the small squares corresponding to time slot #0 to time slot #6 represent a COT preempted by the sender.
  • the COT frame structure is TTTTRRR.
  • Each T or R corresponds to a time slot respectively, and the corresponding relationship is shown in Figure 6. Wherein, T indicates that the transmitting end sends sidelink information in the corresponding time slot, and R indicates that the transmitting end receives sidelink information in the corresponding time slot.
  • the receiving end can implement COT sharing through the COT frame structure, and the time slot configured as R in the COT is a time slot shared by the receiving end for sending sidelink information.
  • the transmitting end determines the number of blank symbols that need to be reserved in time slot #0 to time slot #3 (that is, the time slot T in COT).
  • the receiving end needs 16us or 25us time to do LBT within COT, so the transmitting end needs to reserve a blank symbol for the transmitting end in time slot #3 in advance so that the receiving end can perform LBT.
  • the number of blank symbols that the transmitting end needs to reserve in time slot #3 is different. For example: when the subcarrier spacing of time slot #3 is 15kHz or 30kHz, only the last blank symbol of time slot #3 needs to be set aside; when the subcarrier spacing is 60kHz, the last two symbols of time slot #3 need to be set aside Blank sign.
  • the last symbol of time slot #0 to time slot #2 in the COT can no longer be configured as a GAP for sending and receiving switching, that is, no blank symbol is reserved, and the transmitting end can use time slot #0 to time slot #2
  • the last symbol in the device is used to send sidelink information, so as to meet the requirement of continuous sending by the receiving end.
  • the transmitting end determines and transmits timeslot #0 to timeslot # according to the number of blank symbols that need to be reserved in each timeslot in timeslot #0 to timeslot #3 (that is, timeslot T in COT).
  • the first indication information is used to indicate whether the last symbol or the last multiple symbols of the corresponding time slot are blank symbols, and the first indication information corresponding to each time slot is carried in the SCI corresponding to the time slot. middle. It can be understood that, in this embodiment of the present application, each time slot may include a piece of first indication information, which is used to indicate whether the last one or more symbols in the time slot are blank symbols.
  • the sender sends SCI#0 in time slot #0, SCI#0 carries indication information #0, and indication information #0 indicates that time slot #0 does not reserve a blank symbol in time slot #0.
  • the indication information #0 represents the first indication information corresponding to the time slot #0.
  • the information about the SCI #1 to SCI #2 sent in the time slot #1 to the time slot #2 is similar to that of the SCI #0, and will not be repeated here.
  • the sender sends SCI#3 in time slot #3, and SCI#3 carries indication information #3, so that the receiving end can share the resources corresponding to time slot #4 to time slot #6 in COT, if indication information #0 is 1 bit , the indication information #3 indicates that the last several symbols of the time slot #3 are blank symbols, and the receiving end determines the specific number of blank symbols according to the subcarrier spacing; if the indication information #0 is multi-bit, here the subcarrier spacing is 60kHz For example, the indication information #3 may also directly indicate that the last two symbols of the time slot #3 are blank symbols.
  • 1-bit information can be used in SCI#0 to indicate whether to perform COT sharing, for example, when the value of the 1-bit information is the value of the COT sharing function. 0 means disable the COT sharing function, 1 means enable the COT sharing function, and vice versa.
  • the COT frame structure (for example: TTTTRRR) may be one of several commonly used COT structures specified in a pre-protocol.
  • the sender can carry the index number corresponding to the COT frame structure in SCI#0; alternatively, the sender can also directly carry the COT frame structure information in SCI#0 .
  • the COT frame structure information is the location information of the T time slot and the R time slot included in the COT.
  • 0 can be used to represent the corresponding time slot for the sender to send sidelink information (that is, 0 represents T)
  • 1 can be used to indicate that the corresponding time slot is used for the transmitting end to receive sidelink information (ie, 1 represents R)
  • the frame structure information TTTTRRR of the COT can be expressed as 00001111, and vice versa.
  • a special COT frame structure may be pre-specified, and the special COT structure may indicate that the COT sharing function is currently disabled.
  • the transmitting end may carry the index sequence number corresponding to the special COT frame structure in SCI#0; optionally, the transmitting end may also directly carry the special COT frame structure information in SCI#0.
  • the transmitter sends the corresponding SCI#0 to SCI#3 in the time slot #0 to the time slot #3 (that is, the time slot of T in the COT).
  • the receiving end receives the corresponding SCI#0 to SCI#3 in the time slot #0 to the time slot #3.
  • the receiving end determines the number of reserved blank symbols in time slot #0 to time slot #3 according to the indication information in SCI#0 to SCI#3, so that the receiving end can use the time slot #3 for which the blank symbol is reserved. Carry out LBT within COT to realize COT sharing.
  • FIG. 7 is a schematic diagram of a resource configuration manner of the PSFCH channel in NR-V2X.
  • Each small grid in Figure 7 represents a time slot.
  • the PSFCH used to send the feedback channel is configured to the user periodically through upper layer signaling (for example: RRC), and the period of the PSFCH channel is configured as periodPSFCHresource.
  • periodPSFCHresource can be configured as 0 timeslots or 2 slot or 4 slots.
  • the parameter configuration of 0 indicates that there is no PSFCH channel in the current resource pool, and the parameter configuration of 2 indicates that the PSFCH channel appears at an interval of 2 time slots.
  • the sidelink originating user indicates whether there is a PSFCH channel in the current time slot through the 1-bit information carried in the PSCCH.
  • the PSFCH carries hybrid automatic repeat request (HARQ) information to feed back the demodulation results of the PSSCH. There is a certain correspondence between the PSSCH and the PSFCH.
  • the configuration of the minimum time interval between the HARQ information fed back by the PSFCH and the PSSCH The parameter is MinTimeGapPSFCH.
  • MinTimeGapPSFCH can be configured as 2 timeslots or 3 timeslots.
  • the parameter configuration of 2 indicates that the HARQ information fed back by the current PSFCH can be the one where the current PSFCH is located.
  • the HARQ information corresponding to the PSSCH of the first time slot is fed back in the first time slot containing the PSFCH, and the HARQ information corresponding to the PSSCH of the four time slots in the first dashed box is fed back Feedback is performed in the second time slot containing the PSFCH, and the HARQ information corresponding to the PSSCH of the 4 time slots in the third dashed box is fed back in the third time slot containing the PSFCH, and so on.
  • the transmitter Since in the unlicensed frequency band, the transmitter needs to perform LBT before accessing the channel. Due to the uncertainty of LBT, the start time of COT can be at any time point in the time slot used for sidelink transmission, as shown in Fig.
  • the periodically configured PSFCH channel in 7 may cause unnecessary PSFCH to appear in the COT, so that a GAP for a long time (at least 4 symbols) appears in the COT, causing the originating user to preempt the channel again. Therefore, this PSFCH channel
  • the configuration method does not apply to unlicensed bands.
  • the present application proposes a method for configuring sidelink resources, which can flexibly configure a PSFCH channel in a shared frequency band to feed back HARQ information.
  • FIG. 8 is a schematic flowchart of another method for configuring sidelink resources proposed in the present application.
  • the sending end sends the first SCI.
  • the receiving end receives the first SCI.
  • the first SCI includes first indication information
  • the first indication information indicates the position of the first time slot and/or the second time slot in multiple time slots
  • the first time slot is used by the transmitting end to send the first side link channel information
  • the second time slot is used for the transmitting end to receive the second sidelink information.
  • the transmitting end or the receiving end determines the first feedback time slot according to the position of the first time slot in the plurality of time slots and the first period, and determines the first feedback time slot according to the position and the second period of the second time slot in the plurality of time slots
  • Two feedback time slots are the cycle of the first feedback time slot in the first time slot, and the receiving end may send the first hybrid automatic repeat request HARQ information to the transmitting end on the first feedback time slot.
  • the second period is the period of the second feedback time slot in the second time slot, and the receiving end may receive the second HARQ information from the transmitting end on the second feedback time slot.
  • the first feedback time slot is a time slot in which the PSFCH channel exists in the first time slot.
  • the second feedback time slot is a time slot in which the PSFCH channel exists in the second time slot.
  • the first cycle or the second cycle may be carried in the first SCI.
  • the first period or the second period may be carried in higher layer signaling.
  • the first feedback time slot includes both a PSFCH channel on which the receiving end can send the first HARQ information, and a PSSCH channel on which the sending end can send the first sidelink information.
  • the second feedback time slot includes both a PSFCH channel on which the receiving end can receive the second HARQ information, and a PSSCH channel on which the transmitting end can receive the second sidelink information.
  • the value corresponding to the first period or the second period may be 0 or a positive integer.
  • the value of the first period when the value of the first period is 0, it means that there is no first feedback time slot in the first time slot; similarly, when the value of the second period is 0, it means that there is no second feedback time slot in the second time slot. time slot.
  • the first period may not be configured.
  • the first feedback time slot does not exist in the first time slot.
  • the second period may not be configured. There is no second feedback time slot in the second time slot by default. It should be understood that the PSFCH is used to carry the HARQ information to feed back the demodulation result of the side downlink information.
  • the first period may not be 0. In this case, there is a first feedback time slot in the first time slot.
  • the receiving end can determine the position of the first feedback time slot existing in the first time slot according to the position of the first time slot and the first period in the first indication information, so that the first HARQ can be fed back in the first feedback time slot. information.
  • the transmitter can also determine the position of the first feedback time slot existing in the first time slot according to the position of the first time slot and the first period in the first indication information, so that the first feedback time slot can be received in the first feedback time slot. - HARQ information.
  • the second period may not be 0. In this case, there is a second feedback time slot in the second time slot.
  • the transmitting end can determine that there is a second feedback time slot in the plurality of second time slots according to the position and the second period of the second time slot in the first indication information, so that the second HARQ can be fed back in the second feedback time slot. information.
  • the receiving end can determine that there is a second feedback time slot in the plurality of second time slots according to the position and the second period of the second time slot in the first indication information, so that the second HARQ can be received in the second feedback time slot. information.
  • the receiving end receives the first side downlink information in the first time slot, and if the first HARQ information is fed back in the first feedback time slot, the first SCI further includes the first minimum time interval, The first minimum time interval is the minimum time interval between the first PSFCH and the first PSSCH corresponding to the first PSFCH, and the first PSFCH is used to carry the first HARQ information.
  • a first PSFCH exists in the first feedback time slot, the first HARQ information transmitted on the first PSFCH is feedback information for data transmitted on the first PSSCH, and the first PSFCH and the corresponding first PSSCH are generally not in a time slot.
  • the time slot in which the first PSSCH is located is earlier in time than the time slot in which the first PSFCH is located, and one first PSFCH may generally correspond to multiple first PSSCHs. Therefore, the time interval between the first PSFCH and the first PSSCH with the closest time interval among the plurality of first PSSCHs may be referred to as the first minimum time interval, and the unit of the first minimum time interval is a time slot.
  • the transmitting end receives the second sidelink information in the second time slot, and if the second HARQ information is fed back in the second feedback time slot, the first SCI further includes a second minimum time interval,
  • the second minimum time interval is the minimum time interval between the second PSFCH and the second PSSCH corresponding to the second PSFCH, and the second PSFCH is used to carry the second HARQ information.
  • the second minimum time interval reference may be made to the first minimum time interval, which will not be repeated here.
  • the sending end may also send the first minimum time interval and/or the second minimum time interval to the receiving end through high-layer signaling.
  • the minimum time interval reference may also be made to the description in FIG. 7 , which will not be repeated here.
  • the positions of the first time slot and/or the second time slot in the plurality of time slots are indicated by the first indication information, and the first period and/or the second period are configured, and the transmitting end and the /or the receiving end can identify which time slots to perform data transmission and/or reception, and which time slots to perform feedback information transmission and/or reception.
  • the configuration method of the PSFCH in FIG. 8 is described in detail below by taking a scenario in which the transmitting end preempts the COT in the unlicensed frequency band as an example.
  • the transmitting end device and the receiving end device perform data communication on the time-frequency resources for sidelink transmission configured by the base station.
  • FIG. 9 is a schematic diagram of a frame structure of another COT preempted by the transmitting end according to an embodiment of the present application.
  • each small square represents a time slot. It can be seen that all the small squares corresponding to time slot #0 to time slot #9 represent a preempted COT.
  • the COT frame structure is TTTTRRRRTT.
  • Each T or R respectively corresponds to a time slot, and the corresponding relationship is shown in Figure 9.
  • T indicates that the corresponding time slot is used by the transmitter to send sidelink information
  • R indicates that the corresponding time slot is used by the transmitter to receive sidelink information.
  • the time slot configured as R in the COT can be shared with the receiving end for sending sidelink information.
  • the following describes how to configure the PSFCH in the unlicensed frequency band with reference to the COT frame structure given in FIG. 9 .
  • FIG. 10 is a schematic flowchart of another method for configuring sidelink resources proposed by the present application.
  • the transmitting end sends the first SCI in time slot #0.
  • the first SCI includes first indication information, where the first indication information indicates frame structure information of the COT preempted by the transmitting end.
  • the receiving end receives the first SCI in time slot #0.
  • the COT frame structure information is the location information of the T time slot and the R time slot included in the COT.
  • multiple time slots in the first indication information in S810 can be understood as COT in FIG. 10 in S1010, that is, time slot #0 to time slot #9
  • the first time slot in S810 can be understood is the time slot of T in the COT, namely slot #0 to time slot #3, time slot #8 to time slot #9
  • the second time slot can be understood as the time slot of R in the COT, that is, time slot #4 ⁇ slot #7.
  • the first indication may indicate the index of the frame structure of the COT preempted by the transmitting end, and the receiving end may determine the information of the frame structure of the COT according to the index of the frame structure of the COT.
  • the first indication information may indicate the frame structure information of the COT preempted by the sender.
  • 0 may be used to represent the corresponding time slot for the sender to send sidelink information (that is, 0 represents T), and 1 may be used.
  • the frame structure information TTTTRRR of the COT can be represented as 00001111, or vice versa.
  • the first SCI also includes the first cycle and/or the second cycle.
  • the PSFCH is used to carry HARQ information to feed back the demodulation result of the PSSCH.
  • the first cycle can be understood as the presence of the PSFCH in the time slot T in the COT.
  • the period of the time slot, the second period can be understood as the period of the time slot in which the PSFCH exists in the time slot of R in the COT. It can be seen from FIG.
  • the first period is 3, which means that there is a time slot containing PSFCH every 3 time slots starting from time slot #0 in the time slot of T in the COT, that is, T in the COT
  • the time slots where the PSFCH exists in the time slot of the COT are time slot #2 and time slot #9;
  • the second period is 2, which means that there is a time slot every 2 time slots from time slot #4 in the time slot of R in the COT
  • a time slot containing the PSFCH, that is, the time slot where the PSFCH exists in the time slot with R in the COT is the time slot #5 and the time slot #7.
  • steps S1020 to S1040 are performed.
  • the transmitting end sends the first sidelink information on the time slot T in the COT.
  • the receiving end receives the first sidelink information on the time slot T in the COT.
  • the first sidelink information is carried in the PSSCH corresponding to the time slot in which the first sidelink information is sent.
  • the receiving end determines, according to the first indication information and the first period, the position of the time slot where the PSFCH exists in the time slot T in the COT.
  • the receiving end extracts the time slot T in the COT frame structure according to the COT frame structure information, and calculates the position of the time slot where the PSFCH exists in the time slot T in the COT according to the value of the first period. Specifically, the receiving end extracts time slot #0 to time slot #3 and time slot #8 to time slot #9 according to the first indication information. Since the first period is 3, the receiving end can determine that every time slot #0 starts from time slot #0 There is a time slot including the PSFCH every 3 time slots, that is, the time slot where the PSFCH exists in the time slot of T in the COT is the time slot #2 and the time slot #9.
  • the receiving end feeds back the first HARQ information on the corresponding time slot where the PSFCH exists.
  • the first HARQ information includes a demodulation result of the first side downlink information.
  • the first SCI also includes a first minimum time interval, where the first minimum time interval is the minimum time interval between the PSFCH of the HARQ information fed back in the time slot of T in the COT and the PSSCH corresponding to the HARQ information.
  • the first minimum time interval is 2 time slots as an example to illustrate how the receiving end determines on which time slot the PSFCH exists the HARQ information corresponding to the PSSCH to be fed back.
  • the receiving end receives sidelink information #0 in time slot #0, and can feed back the corresponding HARQ information #0 in time slot #2, and the receiving end receives it in time slot #3
  • the corresponding HARQ information #3 can be fed back in the time slot #9. Since time slot #2 can only feed back HARQ information #0 at the latest, and time slot #9 can only feed back HARQ information #3 at the latest, therefore, for the sidelink information #1 received in time slot #1 and the The sidelink information #2 received by #2 needs to perform corresponding HARQ feedback in time slot #9.
  • the transmitting end receives the first HARQ information on the corresponding time slot where the PSFCH exists according to the above steps, which will not be repeated here.
  • the receiver can decode the COT frame indicated in the first SCI sent by the sender. After the structure information is obtained, if there is sidelink information that needs to be sent, and the sending end needs to feed back HARQ information for the sent sidelink information, steps S950 to S970 are performed.
  • the receiving end sends the second sidelink information on the time slot R in the COT.
  • the transmitting end receives the second sidelink information on the time slot R in the COT.
  • the second sidelink information is carried in the PSSCH corresponding to the time slot in which the second sidelink information is sent.
  • the transmitting end determines the position of the time slot where the PSFCH exists according to the COT frame structure information and the second period.
  • the transmitting end extracts the time slot R in the COT frame structure according to the COT frame structure information, and calculates the position of the time slot where the PSFCH exists in the time slot R in the COT according to the value of the second period. Specifically, the transmitting end extracts timeslot #4 to timeslot #7. Since the second period is 2, the transmitting end can determine that there is a timeslot including the PSFCH every 2 timeslots starting from timeslot #4, that is, the The time slots where the PSFCH exists in the time slots with R in the COT are time slot #5 and time slot #7.
  • the transmitting end feeds back the second HARQ information on the corresponding time slot where the PSFCH exists.
  • the second HARQ information includes a demodulation result of the second sidelink information.
  • the first SCI further includes a second minimum time interval, where the second minimum time interval is the minimum time interval between the PSFCH in which the HARQ information is fed back in the time slot of the COT and the PSSCH corresponding to the HARQ information.
  • the second minimum time interval is 2 time slots as an example to illustrate how the receiving end determines on which time slot the PSFCH exists the HARQ information corresponding to the PSSCH to be fed back.
  • the sidelink information #5 received by the receiving end in time slot #5 feeds back the corresponding HARQ information #5 in time slot #7. Since time slot #7 can only feed back HARQ information #5 at the latest, time slot #5 does not meet the conditions for feeding back HARQ information #4 corresponding to sidelink information #4 received in time slot #4 (that is, it does not satisfy the second minimum time interval), therefore, feedback on slot #7 is required for HARQ information #4.
  • the receiving end receives the second HARQ information on the corresponding time slot where the PSFCH exists according to the above steps, which will not be repeated here.
  • the configuration mode of the PSFCH resources is changed from a static periodic configuration mode to a dynamic and flexible configuration mode.
  • the dynamic and flexible configuration method in this application avoids the problem that the fixed configuration method of the PSFCH resource does not match the actual COT of the transmitting end.
  • the periodic information of the PSFCH is dynamically indicated in the SCI, and the occurrence frequency and location of the PSFCH can be flexibly configured.
  • the time slot 2 in FIG. 9 is used as an example. If the receiving end needs to perform HARQ feedback in the PSFCH of time slot 2, the receiving end needs to use the PSFCH Before performing LBT or transceiver switching, that is to say, the transmitting end needs to reserve a blank symbol for the receiving end before the PSFCH symbol exists in time slot 2 for LBT or transceiver switching, and the configuration method of the blank symbol corresponding to Figure 5 is not considered.
  • the existence of the PSFCH in the time slot therefore, if the receiving end finds that a time slot is a time slot in which the PSFCH exists, then in the embodiments corresponding to FIG. 4, FIG. 5 and FIG. The information is invalid here, and the receiving end can ignore the indication information, but determine the position of the blank symbol in the time slot in a predetermined or prescribed manner.
  • FIG. 11 is a schematic diagram of a pattern of blank symbols reserved when the subcarrier spacing of a time slot in which a PSFCH resource exists according to an embodiment of the present application is 15 kHz, 30 kHz, and 60 kHz. All the grids corresponding to the sequence numbers 0 to 13 represent a sidelink time slot, wherein each grid represents a symbol.
  • the transmitting end reserves the last symbol in the first time slot (that is, the symbol corresponding to #13) and the fourth last symbol ( That is, the symbol corresponding to #10) is a blank symbol; or, the subcarrier interval of the first time slot is 60 kHz, and the transmitting end reserves the last two symbols in the first time slot (that is, the symbols corresponding to #12# and 13) and The 5th and 6th symbols from the bottom (that is, the symbols corresponding to #8 and #9) are blank symbols.
  • the position of the blank symbol in the time slot is the symbol before the AGC of the PSFCH and the symbol after the PSFCH, and the number of symbols can be one or two, and the specific number Determined by the subcarrier spacing.
  • the sending end and the receiving end in this application are divided according to the sending direction or the receiving direction of the SCI in the above method embodiments, but it does not mean that the sending end in the embodiment of the present application can only be used for sending and cannot use For receiving, it does not mean that the receiving end in the embodiment of the present application can only be used for receiving and cannot be used for sending.
  • the sending end and the receiving end may also be interchanged, that is, the receiving end may also be the sending end in the foregoing method embodiments, and the sending end may also be the receiving end in the foregoing method embodiments.
  • sending end and the receiving end in all implementations of this application may be terminal devices.
  • FIG. 12 is a schematic block diagram of a communication apparatus 1000 provided by the present application. As shown in FIG. 12 , the communication apparatus 1000 includes a receiving unit 1100 and a processing unit 1200 .
  • the receiving unit 1100 is configured to receive the first sideline control information SCI on the first time slot, where the first SCI includes first indication information, and the first indication information indicates whether there is a blank symbol in the first time slot, The blank symbols are located in the last N symbols of the first time slot, and N is a natural number; the processing unit 1200 is configured to determine whether there are blank symbols in the first time slot according to the first indication information.
  • the processing unit 1200 is further configured to: The subcarrier spacing determines the number N of the blank symbols in the first time slot.
  • the subcarrier spacing of the first time slot is 15 kHz or 30 kHz, and the number N of blank symbols is 1; or the subcarrier spacing of the first time slot is 60 kHz , the number N of the blank symbols is 2.
  • the communication apparatus 1000 may further include a sending unit 1300, configured to perform the action of sending.
  • a sending unit 1300 configured to perform the action of sending.
  • each unit of the communication apparatus 1000 is further configured to perform the following steps and/or operations.
  • the receiving unit 1100 is configured to receive first sideline control information SCI, wherein the first SCI includes first indication information, and the first indication information indicates that the first time slot and/or the second time slot are in a plurality of time slots position in the slot, the first time slot is used by the first terminal device to receive the first sidelink information, and the second time slot is used by the first terminal device to send the second sidelink channel information; determine the first feedback time slot according to the position of the first time slot in the plurality of time slots and the first period, and determine the first feedback time slot according to the position and the first cycle of the second time slot in the plurality of time slots Two cycles determine the second feedback time slot, the first cycle is the cycle of the first feedback time slot in the first time slot, the first feedback time slot includes the first physical sideline feedback channel PSFCH, the The first PSFCH is used to send the first HARQ information of the HARQ, the second period is the period of the second feedback time slot in the second time slot, and the second feedback time slot includes the second PSFCH, The second P
  • the first period or the second period is carried in the first SCI or higher layer signaling.
  • each unit of the communication apparatus 1000 is further configured to perform the following steps and/or operations.
  • the receiving unit 1100 is configured to receive first sideline control information SCI on a first time slot, wherein the first sideline control signal SCI includes first indication information and a first period, and the first indication information is used for Indicates the direction of each time slot in the channel occupancy time COT obtained by the second terminal device, and the direction of each time slot is the corresponding sending or receiving sidelink when the second terminal device uses each time slot direction of the channel information, the first period is the period of the time slot in which the PSFCH exists in the time slot used by the second terminal device to send sidelink information in the COT, and the first time slot is the time slot of the PSFCH.
  • the second terminal device is used to send one of the time slots of the sidelink information; the receiving unit 1100 is further configured to receive the first sidelink information from the second terminal device in the COT; processing The unit 1200 is configured to determine the position of the second time slot according to the position information corresponding to the time slot used by the second terminal device to send the sidelink signal in the COT and the first period, and the second time slot
  • the slot is the time slot in which the PSFCH exists in the time slot in the COT used by the second terminal device to send the sidelink information; the sending unit 1300 is configured to send the PSFCH to the first time slot on the PSFCH of the corresponding second time slot.
  • the second terminal device sends first HARQ information, where the first HARQ information includes a demodulation result of the first sidelink information.
  • the first sideline control signal SCI further includes a first minimum time interval
  • the sending unit 1300 is specifically configured to: according to the first minimum time interval, at the corresponding first time interval. Send the first HARQ information to the second terminal equipment on the PSFCH of the slot, wherein the first minimum time interval is the first terminal equipment configured with the communication apparatus 1000 to perform HARQ on the first sidelink information. Minimum time interval for feedback.
  • the first sideline control signal SCI further includes a second period, and the second period is used by the second terminal device in the COT to receive the sidelink signal.
  • the receiving unit 1100 and the sending unit 1300 may also be integrated into a transceiver unit, which has the functions of receiving and sending at the same time, which is not limited here.
  • the communication apparatus 1000 may be the receiving end in the method embodiment.
  • the sending unit 1300 may be a transmitter
  • the receiving unit 1100 may be a receiver.
  • the receiver and transmitter can also be integrated into a transceiver.
  • the processing unit 1200 may be a processing device.
  • the communication apparatus 1000 may be a chip or an integrated circuit installed in the receiving end.
  • the sending unit 1300 and the receiving unit 1100 may be a communication interface or an interface circuit.
  • the sending unit 1300 is an output interface or an output circuit
  • the receiving unit 1100 is an input interface or an input circuit
  • the processing unit 1200 may be a processing device.
  • the processing device may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the processing apparatus may include a memory and a processor, wherein the memory is used to store a computer program, and the processor reads and executes the computer program stored in the memory, so that the communication apparatus 1000 performs the operations performed by the receiving end in each method embodiment and / or processing.
  • the processing means may comprise only a processor, the memory for storing the computer program being located outside the processing means.
  • the processor is connected to the memory through circuits/wires to read and execute the computer program stored in the memory.
  • the processing device may be a chip or an integrated circuit.
  • FIG. 13 is a schematic block diagram of a communication apparatus 2000 provided by the present application. As shown in FIG. 13 , the communication apparatus 2000 includes a processing unit 2100 and a sending unit 2200 .
  • the processing unit 2100 is configured to determine first indication information, where the first indication information is carried in the first sideline control information SCI, the first indication information indicates whether there is a blank symbol in the first time slot, and the blank symbol is located in the The last N symbols of the first time slot, N is a natural number; the sending unit 2200 is configured to send the first SCI on the first time slot.
  • the processing unit 2100 is further configured to: determine the number N of blank symbols in the first time slot according to the subcarrier spacing of the first time slot.
  • the subcarrier spacing of the first time slot is 15 kHz or 30 kHz, and the number N of blank symbols is 1; or the subcarrier spacing of the first time slot is 60 kHz, and the number of blank symbols is 1. N is 2.
  • the communication apparatus 2000 may further include a receiving unit 2300 configured to perform an action of receiving.
  • each unit of the communication apparatus 2000 is further configured to perform the following steps and/or operations.
  • a sending unit 2200 configured to send the first sideline control information SCI, wherein the first SCI includes first indication information, and the first indication information indicates the position of the first time slot and/or the second time slot in multiple time slots , the first time slot is used for the second terminal device to send the first sidelink information, and the second time slot is used for the second terminal device to receive the second sidelink information;
  • the first feedback time slot is determined by the position in the first time slot and the first cycle
  • the second feedback time slot is determined according to the position of the second time slot in the plurality of time slots and the second cycle, and the first cycle is the first feedback time slot.
  • a period of a feedback time slot in the first time slot includes the first physical sideline feedback channel PSFCH, the first PSFCH is used to receive the first HARQ information, the second The period is the period of the second feedback time slot in the second time slot, and the second feedback time slot includes the second PSFCH, and the second PSFCH is used for transmitting the second HARQ information.
  • the first period or the second period is carried in the first SCI or higher layer signaling.
  • each unit of the communication apparatus 2000 is further configured to perform the following steps and/or operations.
  • a sending unit 2200 configured to send first sideline control information SCI on a first time slot, where the first sideline control signal SCI includes first indication information and a first period, and the first indication information is used to indicate configuration
  • the direction of the downlink information, the first period is the period of the time slot in which the PSFCH exists in the time slot in the COT used by the second terminal device to send the sidelink information
  • the first time slot is the second terminal device is used to send one of the time slots of the sidelink information
  • the sending unit 2200 is further configured to send the first sidelink information to the first terminal device within the COT
  • the processing unit 2100 is configured to determine the position of the second time slot according to the position information corresponding to the time slot used by the second terminal device to send the sidelink information in the COT and the first period, and the second time slot
  • the first sideline control information SCI further includes a second period, and the second period is a period used by the second terminal device in the COT to receive sidelink information.
  • the first sideline control signal SCI further includes a second minimum time interval
  • the sending unit 2200 is specifically configured to: according to the second minimum time interval, in the corresponding third time interval Sending second HARQ information to the first terminal equipment on the PSFCH of the time slot, wherein the second minimum time interval is when the second terminal equipment configured with the communication device performs HARQ on the second sidelink information Minimum time interval for feedback.
  • the receiving unit 2300 and the sending unit 2200 may also be integrated into a transceiver unit, which has the functions of receiving and sending at the same time, which is not limited here.
  • the communication apparatus 2000 may be the sending end in the method embodiment.
  • the sending unit 2200 may be a transmitter
  • the receiving unit 2300 may be a receiver.
  • the receiver and transmitter can also be integrated into a transceiver.
  • the processing unit 2100 may be a processing device.
  • the communication apparatus 2000 may be a chip or an integrated circuit installed in the transmitting end.
  • the sending unit 2200 and the receiving unit 2300 may be a communication interface or an interface circuit.
  • the sending unit 2200 is an output interface or an output circuit
  • the receiving unit 2300 is an input interface or an input circuit
  • the processing unit 2100 may be a processing device.
  • the processing device may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the processing apparatus may include a memory and a processor, wherein the memory is used to store a computer program, and the processor reads and executes the computer program stored in the memory, so that the communication apparatus 2000 performs the operations performed by the sending end in each method embodiment and / or processing.
  • the processing means may comprise only a processor, the memory for storing the computer program being located outside the processing means.
  • the processor is connected to the memory through circuits/wires to read and execute the computer program stored in the memory.
  • the processing device may be a chip or an integrated circuit.
  • FIG. 14 is a schematic structural diagram of the communication device 10 provided by the present application.
  • the communication device 10 includes: one or more processors 11 , one or more memories 12 and one or more communication interfaces 13 .
  • the processor 11 is used to control the communication interface 13 to send and receive signals
  • the memory 12 is used to store a computer program
  • the processor 11 is used to call and run the computer program from the memory 12, so that the methods executed by the receiving end in the method embodiments of the present application are executed. Processes and/or operations are performed.
  • the processor 11 may have the function of the processing unit 1200 shown in FIG. 12
  • the communication interface 13 may have the function of the transmitting unit 1300 and/or the receiving unit 1100 shown in FIG. 12 .
  • the processor 11 may be used to perform the processing or operation performed by the receiving end in each method embodiment of the present application
  • the communication interface 13 is used to perform the sending and/or receiving performed by the receiving end in each method embodiment of the present application. Actions.
  • the communication apparatus 10 may be the receiving end in the method embodiment.
  • the communication interface 13 may be a transceiver.
  • a transceiver may include a receiver and a transmitter.
  • the processor 11 may be a baseband device, and the communication interface 13 may be a radio frequency device.
  • the communication device 10 may be a chip installed in the receiving end.
  • the communication interface 13 may be an interface circuit or an input/output interface.
  • FIG. 15 is a schematic structural diagram of a communication device 20 provided by the present application.
  • the communication device 20 includes: one or more processors 21 , one or more memories 22 and one or more communication interfaces 23 .
  • the processor 21 is used to control the communication interface 23 to send and receive signals
  • the memory 22 is used to store a computer program
  • the processor 21 is used to call and run the computer program from the memory 22, so that the execution by the sending end in each method embodiment of the present application is performed. Processes and/or operations are performed.
  • the processor 21 may have the function of the processing unit 2100 shown in FIG. 13
  • the communication interface 23 may have the function of the transmitting unit 2200 and/or the receiving unit 2300 shown in FIG. 13 .
  • the processor 21 may be used to perform the processing or operation performed by the sending end in each method embodiment of the present application
  • the communication interface 23 is used to perform the sending and/or receiving performed by the sending end in each method embodiment of the present application. actions will not be repeated.
  • the communication apparatus 20 may be the transmitting end in the method embodiment.
  • the communication interface 13 may be a transceiver.
  • a transceiver may include a receiver and a transmitter.
  • the processor 11 may be a baseband device, and the communication interface 13 may be a radio frequency device.
  • the communication device 20 may be a chip installed in the transmitting end.
  • the communication interface 13 may be an interface circuit or an input/output interface.
  • processors and the memory in the foregoing apparatus embodiments may be physically independent units, or the memory may also be integrated with the processor, which is not limited herein.
  • the present application also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on a computer, the operations performed by the receiving end in each method embodiment of the present application are made. and/or processes are executed.
  • the present application further provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on the computer, the operations performed by the sending end in the method embodiments of the present application and/or or the process is executed.
  • the present application also provides a computer program product.
  • the computer program product includes computer program codes or instructions.
  • the operations and/or processes performed by the receiving end in each method embodiment of the present application are made possible. be executed.
  • the present application also provides a computer program product.
  • the computer program product includes computer program codes or instructions.
  • the operations and/or processes performed by the sender in each method embodiment of the present application are made possible. be executed.
  • the present application also provides a chip including a processor.
  • the memory for storing the computer program is provided independently of the chip, and the processor is used for executing the computer program stored in the memory, so that the operations and/or processing performed by the receiving end in any one of the method embodiments are performed.
  • the chip may further include a communication interface.
  • the communication interface may be an input/output interface or an interface circuit or the like.
  • the chip may further include the memory.
  • the present application also provides a chip including a processor.
  • the memory for storing the computer program is provided independently of the chip, and the processor is configured to execute the computer program stored in the memory, so that the operations and/or processing performed by the transmitter in any one of the method embodiments are performed.
  • the chip may further include a communication interface.
  • the communication interface may be an input/output interface or an interface circuit or the like.
  • the chip may further include the memory.
  • the present application further provides a communication system, including the receiving end and the transmitting end in the embodiments of the present application.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has the capability of processing signals.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the processor can be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the methods disclosed in the embodiments of the present application may be directly embodied as executed by a hardware coding processor, or executed by a combination of hardware and software modules in the coding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • 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 volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of 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 components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

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Abstract

本申请提供了一种侧行链路资源配置的方法和通信装置，可以在共享频段中支持灵活的侧行链路资源配置方式，支持COT共享和灵活的HARQ信息反馈。发端用户根据抢占到的COT，可以通过SCI指示时隙最后若干个符号为空白符号，接收端可以根据留出的空白进行COT内的LBT，从而实现COT共享；另外，在抢占COT后，发端用户可以灵活地配置PSFCH资源的周期信息，并将PSFCH资源的周期信息发送给收端用户，结合帧结构信息，利用求余操作计算收发两段用户可以计算出对应方向上的时隙中PSFCH时隙位置，从而在对应的存在PSFCH的时隙上反馈HARQ信息。

Description

侧行链路资源配置的方法和通信装置 技术领域
本申请涉及通信领域，并且更具体地，涉及一种侧行链路资源配置的方法和通信装置。
背景技术
设备到设备(device-to device，D2D)网络通信技术是指两个用户节点之间直接进行通信的一种通信方式。从D2D技术所工作的频段不同，可以分为工作在授权频段的D2D技术，如新无线接入技术-车到其他设备(new radio access technology-vehicle to X，NR-V2X)等，以及工作在非授权频段的D2D技术，如无线网络(Wi-Fi)，蓝牙技术等。
为避免D2D通信和通用接口(universal user，Uu)通信互相冲突，标准规定了用于D2D通信的资源池(resource pool)，即基站会通过RRC信令配置一些公共的用于D2D传输的时频资源。
目前NR-V2X中配置的资源池仅支持一个方向的数据发送，资源池的时频资源为周期性的，资源池内的侧行链路时隙间存在固定的空隙，适用于需要快速反馈解调结果的周期性小包业务的车联网场景。由于当前的NR-V2X中配置的资源池不够灵活，因此不适用于大包非周期性的业务，例如AR/VR数据传输场景。
同时，在非授权频段中，发射节点需要侦听信道的忙、闲状态，只有在信道空闲时，节点才可以接入信道进行信号发射，所以固定的资源池的资源配置方式不适用于非授权频段。
有鉴于此，如何实现灵活的D2D资源配置成为亟待解决的问题。
发明内容
本申请提供一种侧行链路资源配置的方法和通信装置，可以实现灵活的D2D资源配置。
第一方面，提供了一种侧行链路资源配置的方法，可以应用于第一终端设备，也可以应用于第一终端设备内的部件(例如芯片，芯片系统或处理器等)，包括：在第一时隙上接收第一侧行控制信息SCI，所述第一SCI包括第一指示信息，所述第一指示信息指示所述第一时隙是否存在空白符号，所述空白符号位于所述第一时隙的最后N个符号，N为自然数；根据所述第一指示信息确定所述第一时隙是否存在空白符号。
由于第一终端设备用于接收第一SCI，因此第一终端设备在该方法中可以理解为接收端设备。
上述技术方案中，可以应用于非授权D2D技术中。当第一时隙的最后N个符号为空白符号时，接收端可以在第一时隙的空白符号上侦听信道的忙、闲状态以及进行收发切换，从而实现非授权频段的COT共享。另外，对于一些周期性发送的数据包或者一些小数据包发送的场景来说，在每个时隙中存在空白符号对数据的发送可能没有影响，但是针对连 续发送大数据的场景来说，一些大的数据包的传输时间可能要占用连续的多个时隙，在每个时隙中额外保留空白符号会导致数据包因为空白符号的存在而不能被连续发送，从而造成资源的浪费，而本申请中当第一时隙的最后N个符号不为空白符号时，可以满足一些大的数据包连续发送的需求。
例如：发送端在非授权频段上抢占到的COT帧结构为TTTTRRR，每个T或R分别对应一个时隙，其中，发送端在T对应的时隙上发送侧行链路信息，接收端在R对应的时隙上接收侧行链路信息，COT中被配置成R的时隙可以共享给接收端用于侧行链路信息发送。为了实现COT共享，发送端可以在该COT帧结构的最后一个T时隙中为接收端提前预留出若干个空白符号以便接收端可以侦听信道的忙、闲状态，在信道空闲时，接收端可以共享COT帧结构中的R时隙，即接收端可以在R时隙上可以进行侧行链路信息的发送。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：如果所述第一指示信息指示所述第一时隙存在空白符号，所述第一终端设备根据所述第一指示信息和第一时隙的子载波间隔确定所述第一时隙中所述空白符号的个数N。
结合第一方面，在第一方面的某些实现方式中，所述第一时隙的子载波间隔为15kHz或30kHz，所述空白符号的个数N为1；或者，所述第一时隙的子载波间隔为60kHz，所述空白符号的个数N为2。
第二方面，提供了一种侧行链路资源配置的方法，可以应用于第二终端设备，也可以应用于第二终端设备内的部件(例如芯片，芯片系统或处理器等)，包括：确定第一指示信息，所述第一指示信息承载于第一侧行控制信息SCI，所述第一指示信息指示所述第一时隙是否存在空白符号，所述空白符号位于所述第一时隙的最后N个符号，N为自然数；在所述第一时隙上发送所述第一SCI。
由于第二终端设备用于发送第一SCI，因此第二终端设备在该方法中可以理解为发送端设备。
关于第二方面的有益效果参见第一方面中的描述，这里不再赘述。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：第二终端设备根据第一时隙的子载波间隔确定所述第一时隙中所述空白符号的个数N。
结合第二方面，在第二方面的某些实现方式中，所述第一时隙的子载波间隔为15kHz或30kHz，所述空白符号的个数N为1；或者，所述第一时隙的子载波间隔为60kHz，所述空白符号的个数N为2。
第三方面，提供了一种侧行链路资源配置的方法，可以应用于第一终端设备，也可以应用于第一终端设备内的部件(例如芯片，芯片系统或处理器等)，包括：接收第一侧行控制信息SCI，其中，所述第一SCI包括第一指示信息，所述第一指示信息指示第一时隙和/或第二时隙在多个时隙中的位置，所述第一时隙用于接收所述第一侧行链路信息，所述第二时隙用于发送第二侧行链路信息；根据所述第一时隙在所述多个时隙中的位置和第一周期确定第一反馈时隙，根据所述第二时隙在所述多个时隙中的位置和第二周期确定第二反馈时隙，所述第一周期为第一反馈时隙在所述第一时隙中的周期，所述第一反馈时隙包括第一物理侧行反馈信道PSFCH，所述第一PSFCH用于发送第一混合自动重传请求HARQ信息，所述第二周期为第二反馈时隙在所述第二时隙中的周期，所述第二反馈时隙 包括第二物理侧行反馈信道PSFCH，所述第二PSFCH用于接收第二HARQ信息；在所述第一时隙上接收所述第一侧行链路信息，或者，在所述第二时隙上发送所述第二侧行链路信息。
由于第一终端设备用于接收第一SCI，因此第一终端设备在该方法中可以理解为接收端设备。
上述技术方案中，第一终端设备通过获取第一指示信息指示的多个时隙中的第一时隙和/或第二时隙的位置，以及第一周期和/或第二周期的信息，能够识别在哪些时隙上进行数据的发送和/或接收，以及在哪些时隙上进行反馈信息的发送和/或接收。
例如：发送端在非授权频段上抢占到的COT帧结构为TTTTRRRRTT，每个T或R分别对应一个时隙(假设该COT对应时隙#0～时隙9)，其中，发送端在T对应的时隙上发送侧行链路信息，接收端在R对应的时隙上接收侧行链路信息，COT中被配置成R的时隙可以共享给接收端用于侧行链路信息发送。为了在PSFCH上实现灵活的HARQ反馈，接收端从发送端接收承载于SCI中的COT帧结构信息(即第一时隙和/或第二时隙在多个时隙中的位置)、该COT中为T的时隙中存在PSFCH的时隙的周期(即第一周期)和/或该COT中为R的时隙中存在PSFCH的时隙的周期(即第二周期)。作为示例，存在第一周期为3，那么接收端可以确定该COT中为T的所有时隙从时隙#0开始每隔3个时隙存在一个包含PSFCH的时隙，即存在PSFCH的时隙为时隙#2和时隙#9；存在第二周期为2，那么发送端可以确定该COT中为R的所有时隙从时隙#4开始每隔2个时隙存在一个包含PSFCH的时隙，即存在PSFCH的时隙为时隙#5和时隙#7。
结合第三方面，在第三方面的某些实现方式中，所述第一周期或所述第二周期承载于所述第一SCI或高层信令。
第四方面，提供了一种侧行链路资源配置的方法，可以应用于第二终端设备，也可以应用于第二终端设备内的部件(例如芯片，芯片系统或处理器等)，包括：发送第一侧行控制信息SCI，其中，所述第一SCI包括第一指示信息，所述第一指示信息指示第一时隙和/或第二时隙在多个时隙中的位置，所述第一时隙用于发送所述第一侧行链路信息，所述第二时隙用于接收第二侧行链路信息；根据所述第一时隙在所述多个时隙中的位置和第一周期确定所述第一反馈时隙，根据所述第二时隙在所述多个时隙中的位置和第二周期确定所述第二反馈时隙，所述第一周期为第一反馈时隙在所述第一时隙中的周期，所述第一反馈时隙包括第一物理侧行反馈信道PSFCH，所述第一PSFCH用于接收第一混合自动重传请求HARQ信息，所述第二周期为第二反馈时隙在所述第二时隙中的周期，所述第二反馈时隙包括第二PSFCH，所述第二PSFCH用于发送第二HARQ信息；在所述第一时隙上发送所述第一侧行链路信息，或者，在所述第二时隙上接收所述第二侧行链路信息。
由于第二终端设备用于发送第一SCI，因此第二终端设备在该方法中可以理解为发送端设备。
关于第四方面的有益效果参见第三方面中的描述，这里不再赘述。
结合第四方面，在第四方面的某些实现方式中，所述第一周期或所述第二周期承载于所述第一SCI或高层信令。
第五方面，提供了一种侧行链路资源配置的方法，可以应用于第一终端设备，也可以应用于第一终端设备内的部件(例如芯片，芯片系统或处理器等)，包括：第一终端设备 在第一时隙上接收第一侧行控制信息SCI，其中，所述第一侧行控制信号SCI包括第一指示信息和第一周期，所述第一指示信息用于指示第二终端设备获得的信道占用时间COT内每个时隙的方向，所述每个时隙的方向为所述第二终端设备使用所述每个时隙时对应的发送或接收侧行链路信息的方向，所述第一周期为所述COT内所述第二终端设备用于发送侧行链路信息的时隙中存在PSFCH的时隙的周期，所述第一时隙为所述第二终端设备用于发送侧行链路信息的时隙中的一个时隙；所述第一终端设备在所述COT内从所述第二终端设备接收第一侧行链路信息；所述第一终端设备根据所述COT内所述第二终端设备用于发送侧行链路信号的时隙对应的位置信息和所述第一周期确定第二时隙的位置，所述第二时隙为所述COT内所述第二终端设备用于发送侧行链路信息的时隙中存在PSFCH的时隙；所述第一终端设备在对应的第二时隙的PSFCH上向所述第二终端设备发送第一HARQ信息，所述第一HARQ信息包括所述第一侧行链路信息的解调结果。
结合第五方面，在第五方面的某些实现方式中，所述第一侧行控制信号SCI还包括第一最小时间间隔，所述第一终端设备在对应的第二时隙的PSFCH中向所述第二终端设备发送第一HARQ信息，包括：所述第一终端设备根据所述第一最小时间间隔在所述对应的第一时隙的PSFCH上向所述第二终端设备发送第一HARQ信息，其中，所述第一最小时间间隔为所述第一终端设备对所述第一侧行链路进行HARQ反馈的最小时间间隔。
结合第五方面，在第五方面的某些实现方式中，所述第一侧行控制信号SCI还包括第二周期，所述第二周期为所述COT内所述第二终端设备用于接收侧行链路信号的时隙中存在PSFCH的时隙周期；该方法还包括：所述第一终端设备根据所述COT内所述第二终端设备用于接收侧行链路信息的时隙对应的位置信息和所述第二周期确定第三时隙的位置，所述第三时隙为所述COT内所述第二终端设备用于接收侧行链路信息的时隙中存在PSFCH的时隙；所述第一终端设备在所述COT内向所述第二终端设备发送第二侧行链路信息；所述第一终端设备在对应的第三时隙的PSFCH上从所述第二终端设备获取第二HARQ信息，所述第二HARQ信息包括所述第二侧行链路信息的解调结果。
第六方面，提供了一种侧行链路资源配置的方法，可以应用于第二终端设备，也可以应用于第二终端设备内的部件(例如芯片，芯片系统或处理器等)，包括：第二终端设备在第一时隙上发送第一侧行控制信息SCI，所述第一侧行控制信号SCI包括第一指示信息和第一周期，所述第一指示信息用于指示第二终端设备获得的COT内每个时隙的方向，所述每个时隙的方向为所述第二终端设备使用所述每个时隙时对应的发送或接收侧行链路信息的方向，所述第一周期为所述COT内所述第二终端设备用于发送侧行链路信息的时隙中存在PSFCH的时隙的周期，所述第一时隙为所述第二终端设备用于发送侧行链路信息的时隙中的一个时隙；所述第二终端设备在所述COT内向所述第一终端设备发送第一侧行链路信息；所述第二终端设备根据所述COT内所述第二终端设备用于发送侧行链路信息的时隙对应的位置信息和所述第一周期确定第二时隙的位置，所述第二时隙为所述COT内所述第二终端设备用于发送侧行链路信息的时隙中存在PSFCH的时隙；所述第二终端设备在对应的第二时隙的PSFCH上从所述第一终端设备获取第一HARQ信息，所述第一HARQ信息包括所述第一侧行链路的解调结果。
结合第六方面，在第六方面的某些实现方式中，所述第一侧行控制信息SCI还包括第二周期，所述第二周期为所述COT内所述第二终端设备用于接收侧行链路信息的时隙中 存在PSFCH的时隙周期；所述方法还包括：所述第二终端设备根据所述COT内所述第二终端设备用于接收侧行链路信息的时隙对应的位置信息和所述第二周期确定第三时隙的位置，所述第三时隙为所述COT内所述第二终端设备用于接收侧行链路信息的时隙中存在PSFCH的时隙；所述第二终端设备在所述COT内从所述第一终端设备接收第二侧行链路信息；所述第二终端设备在对应的第三时隙的PSFCH上向所述第一终端设备发送第二HARQ信息，所述第二HARQ信息包括所述第二侧行链路的解调结果。
结合第六方面，在第六方面的某些实现方式中，所述第一侧行控制信号SCI还包括第二最小时间间隔，所述第二终端设备在对应的第三时隙的PSFCH中向所述第一终端设备发送第二HARQ信息，包括：所述第二终端设备根据所述第二最小时间间隔在所述对应的第三时隙的PSFCH上向所述第一终端设备发送第二HARQ信息，其中，所述第二最小时间间隔为所述第二终端设备对所述第二侧行链路进行HARQ反馈的最小时间间隔。
第七方面，本申请提供一种通信装置，通信装置具有实现第一方面或其任意可能的实现方式中的方法的功能，或者实现第三方面或其任意可能的实现方式中的方法的功能，或者实现第五方面或其任意可能的实现方式中的方法的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元。
在一个示例中，该通信装置可以为第一终端设备。
在另一个示例中，该通信装置可以为安装在第一终端设备内的部件(例如：芯片或集成电路)。
第八方面，本申请提供一种通信装置，通信装置具有实现第二方面或其任意可能的实现方式中的方法的功能，或者实现第四方面或其任意可能的实现方式中的方法的功能，或者实现第六方面或其任意可能的实现方式中的方法的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元。
在一个示例中，该通信装置可以为第二终端设备。
在另一个示例中，该通信装置可以为安装在第二终端设备内的部件(例如：芯片或集成电路)。
第九方面，本申请提供一种通信设备，包括至少一个处理器，至少一个处理器与至少一个存储器耦合，至少一个存储器用于存储计算机程序或指令，至少一个处理器用于从至少一个存储器中调用并运行该计算机程序或指令，使得通信设备执行第一方面或其任意可能的实现方式中的方法，或者执行第三方面或其任意可能的实现方式中的方法，或者执行第五方面或其任意可能的实现方式中的方法。
在一个示例中，该通信装置可以为第一终端设备。
在另一个示例中，该通信装置可以为安装在第一终端设备内的部件(例如：芯片或集成电路)。
第十方面，本申请提供一种通信设备，包括至少一个处理器，至少一个处理器与至少一个存储器耦合，至少一个存储器用于存储计算机程序或指令，至少一个处理器用于从至少一个存储器中调用并运行该计算机程序或指令，使得通信设备执行第二方面或其任意可能的实现方式中的方法，或者执行第四方面或其任意可能的实现方式中的方法，或者执行第六方面或其任意可能的实现方式中的方法，。
在一个示例中，该通信装置可以为第二终端设备。
在另一个示例中，该通信装置可以为安装在第二终端设备内的部件(例如：芯片或集成电路)。
第十一方面，提供了一种处理器，包括：输入电路、输出电路和处理电路。该处理电路用于通过该输入电路接收信号，并通过该输出电路发射信号，使得该第一方面或其任意可能的实现方式中的方法被实现，或者使得该第三方面或其任意可能的实现方式中的方法被实现，或者使得该第五方面或其任意可能的实现方式中的方法被实现。
在具体实现过程中，上述处理器可以为芯片，输入电路可以为输入管脚，输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的，输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第十二方面，提供了一种处理器，包括：输入电路、输出电路和处理电路。该处理电路用于通过该输入电路接收信号，并通过该输出电路发射信号，使得该第二方面或其任意可能的实现方式中的方法被实现，或者使得该第四方面或其任意可能的实现方式中的方法被实现，或者使得该第六方面或其任意可能的实现方式中的方法被实现。
在具体实现过程中，上述处理器可以为芯片，输入电路可以为输入管脚，输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的，输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第十三方面，本申请提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得如第一方面或其任意可能的实现方式中的方法被执行，或者使得如第三方面或其任意可能的实现方式中的方法被执行，或者使得如第五方面或其任意可能的实现方式中的方法被执行。
第十四方面，本申请提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得如第二方面或其任意可能的实现方式中的方法被执行，或者使得如第四方面或其任意可能的实现方式中的方法被执行，或者使得如第六方面或其任意可能的实现方式中的方法被执行。
第十五方面，本申请提供一种计算机程序产品，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得如第一方面或其任意可能的实现方式中的方法被执行，或者使得如第三方面或其任意可能的实现方式中的方法被执行，或者使得如第五方面或其任意可能的实现方式中的方法被执行。
第十六方面，本申请提供一种计算机程序产品，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得如第二方面或其任意可能的实现方式中的方法被执行，或者使得如第四方面或其任意可能的实现方式中的方法被执行，或者使得如第六方面或其任意可能的实现方式中的方法被执行。
第十七方面，本申请提供一种芯片，包括处理器和通信接口，所述通信接口用于接收 信号，并将所述信号传输至所述处理器，所述处理器处理所述信号，以使得如第一方面或其任意可能的实现方式中的方法被执行，或者，以使得如第三方面或其任意可能的实现方式中的方法被执行，或者，以使得如第五方面或其任意可能的实现方式中的方法被执行。
第十八方面，本申请提供一种芯片，包括处理器和通信接口，所述通信接口用于接收信号，并将所述信号传输至所述处理器，所述处理器处理所述信号，以使得如第二方面或其任意可能的实现方式中的方法被执行，或者，以使得如第四方面或其任意可能的实现方式中的方法被执行，或者，以使得如第六方面或其任意可能的实现方式中的方法被执行。
第十九方面，本申请提供一种通信系统，包括如第九方面中所述的通信设备和第十方面中所述的通信设备。
附图说明
图1是适用于本申请实施例的通信系统100的示意图。
图2是NR-V2X中资源池配置方式的示意图。
图3是本申请实施例提供的一个侧行链路时隙结构组成的示意图。
图4是本申请提出的一种侧行链路资源配置的方法的示意性流程图。
图5是本申请实施例提供的第一时隙的子载波间隔为15kHz、30kHz、60kHz时预留的空白符号的图样示意图。
图6是本申请实施例提供的发送端抢占到的一个COT的帧结构示意图。
图7是NR-V2X中PSFCH信道的资源配置方式的示意图。
图8是本申请提出的另一种侧行链路资源配置的方法的示意性流程图。
图9是本申请实施例提供的发送端抢占到的另一个COT的帧结构示意图。
图10是本申请提出的又一种侧行链路资源配置的方法的示意性流程图。
图11是本申请实施例提供的存在PSFCH资源的时隙的子载波间隔为15kHz、30kHz、60kHz时预留的空白符号的图样示意图。
图12为本申请提供的通信装置1000的示意性框图。
图13为本申请提供的通信装置2000的示意性框图。
图14为本申请提供的通信装置10的示意性结构图。
图15为本申请提供的通信装置20的示意性结构图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请提供的技术方案可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th Generation，5G)移动通信系统或新无线接入技术(new radio access technology，NR)。其中，5G移动通信系统可以包括非独立组网(non-standalone，NSA)和/或独立组网(standalone，SA)。
本申请提供的技术方案还可以应用于未来的通信系统，如第六代移动通信系统等。本申请对此不作限定。
本申请提供的技术方案还可以应用于机器类通信(machine type communication，MTC)、 设备到设备(device-to device，D2D)网络、机器到机器(machine to machine，M2M)网络、物联网(internet of things，IoT)网络或者其他网络。其中，IoT网络例如可以包括车联网。其中，车联网系统中的通信方式统称为车到其他设备(vehicle to X，V2X，X可以代表任何事物)，例如，该V2X可以包括：车辆到车辆(vehicle to vehicle，V2V)通信，车辆与基础设施(vehicle to infrastructure，V2I)通信、车辆与行人之间的通信(vehicle to pedestrian，V2P)或车辆与网络(vehicle to network，V2N)通信等。V2X通信系统是基于D2D通信的一种侧行链路(sidelink，SL)传输技术。
参见图1，图1是适用于本申请实施例的通信系统100的示意图。如图1所示，该通信系统100可以包括至少一个网络设备，如图1中所示的网络设备101；该通信系统100还可以包括至少一个终端设备，如图1中所示的终端设备102至107。其中，该终端设备102至107可以是移动的或固定的。网络设备101和终端设备102至107中的一个或多个均可以通过无线链路通信。每个网络设备可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备通信。例如，网络设备可以向终端设备发送配置信息，终端设备可以基于该配置信息向网络设备发送上行数据；又例如，网络设备可以向终端设备发送下行数据。因此，图1中的网络设备101和终端设备102至107构成一个通信系统。
可选地，终端设备之间可以直接通信。例如可以利用D2D技术等实现终端设备之间的直接通信。如图中所示，终端设备105与106之间、终端设备105与107之间，可以利用D2D技术直接通信。终端设备106和终端设备107可以单独或同时与终端设备105通信。
终端设备105至107也可以分别与网络设备101通信。例如可以直接与网络设备101通信，如图中的终端设备105和106可以直接与网络设备101通信；也可以间接地与网络设备101通信，如图中的终端设备107经由终端设备105与网络设备101通信。
应理解，图1示例性地示出了一个网络设备和多个终端设备，以及各通信设备之间的通信链路。可选地，该通信系统100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，例如更多或更少的终端设备。本申请对此不做限定。
上述各个通信设备，如图1中的网络设备101和终端设备102至107，可以配置多个天线。该多个天线可以包括至少一个用于发送信号的发射天线和至少一个用于接收信号的接收天线。另外，各通信设备还附加地包括发射机链和接收机链，本领域普通技术人员可以理解，它们均可包括与信号发送和接收相关的多个部件(例如处理器、调制器、复用器、解调器、解复用器或天线等)。因此，网络设备与终端设备之间可通过多天线技术通信。
本申请实施例中，网络设备可以是任意一种具有无线收发功能的设备。该设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WiFi)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为5G，如，NR，系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)， 或，分布式单元(distributed unit，DU)等。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能，比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、介质接入控制(medium access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。
网络设备为小区提供服务，终端设备通过网络设备分配的传输资源(例如，频域资源，或者说，频谱资源)与小区进行通信，该小区可以属于宏基站(例如，宏eNB或宏gNB等)，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
在本申请实施例中，终端设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。
终端设备可以是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例可以为：手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑(如笔记本电脑、掌上电脑等)、移动互联网设备(mobile internet device，MID)、虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备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。
其中，可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合 使用，如各类进行体征监测的智能手环、智能首饰等。
此外，终端设备还可以是物联网(internet of things，IoT)系统中的终端设备。IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。IoT技术可以通过例如窄带(narrow band，NB)技术，做到海量连接，深度覆盖，终端省电。终端设备还可以包括智能打印机、火车探测器、加油站等传感器，主要功能包括收集数据(部分终端设备)、接收网络设备的控制信息与下行数据，并发送电磁波，向网络设备传输上行数据。
终端设备还可以是路侧通信单元(road side units，RSU)。RSU是车载容迟网络中部署在路边进行辅助通信的设施，它与骨干网直接相连，并且可以与车辆进行无线通信。相比车载容迟网络中的车辆，RSU具有更好的通信能力、覆盖范围和传输速度，而且可以同时与多辆车辆进行通信。此外，RSU还有较大的存储空间，可以存储信息，提高通信概率。因此，通过在道路交通系统中部署相关的RSU，一方面能有效地解决现有车载的互联网接入问题，另一方面，也能极大地增加车载之间的通信机会，通过RSU缓存消息，实现车与车之间消息的高效传递。
在实际部署中，RSU可以是终端设备，RSU也可以是网络设备。
可选地，该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例不限于此。
为便于理解本申请实施例，首先对本申请中涉及的几个术语做简单介绍。
(1)对话前监听(listen before talk，LBT)：在基于非授权频谱部署的通信系统中，各节点通过非授权频段上的接收功率的大小来判断其忙闲状态，如果接收功率小于一定门限，则认为非授权频段上没有干扰源且处于空闲状态，只有该频段空闲，没有被其他网络设备或终端设备占用时，该网络设备或终端设备才可以使用(抢占)这一频段(信道)，然后才能发送信息和数据。这种先监听后发送的机制被称作LBT，该机制能够避免各节点之间在使用非授权频谱资源时的冲突。
(2)信道占用时间(channel occupancy period，COT)：COT是指在网络设备或终端设备执行相应信道接入过程之后，网络设备或终端设备和共享该信道的其他任何终端设备或网络设备在该信道上进行传输的总时间。
(3)COT共享：抢占该COT的初始设备可以与其他与该初始设备交互的设备共同占用该信道的过程。举例而言，在非COT共享的情况下，抢占该COT的初始设备，在抢占到该信道之后，用于在COT内向其他设备发送数据，不会在该COT内接收其他设备发送的数据。而在COT共享的情况下，COT的部分时间段内，该初始设备可以向其他设备发送数据，在该COT的其他时间段内，收到该数据的其他设备可以利用该COT向该初始设备进行数据发送，没有接收到该初始设备发送的数据的设备一般情况下无法利用该COT向该初始设备进行数据发送。
图2是本申请实施例提供的一种NR-V2X中资源池配置方式的示意图。参见图2，在一个用于D2D传输的侧行链路(side link，SL)所在的部分带宽(bandwidth part，BWP)中，用于侧行链路传输的频域资源可以由若干个连续的物理资源块(physical resource block，PRB)组成。以图2为例，图2中的任意一个格子代表一个PRB，图2中的任意一个格子在时域上的长度代表一个时隙，图2中的部分格子(即阴影部分的占用的PRB)共同组成 一个用于D2D传输的频域资源。在图2所示的BWP中，可以配置多于一个的资源池，例如：资源池1，资源池2，每个资源池对应一个发送或接收方向，用以表示该资源池是仅用于发送侧行链路信息或仅用于接收侧行链路信息。每个资源池的频域位置由频域起始位置和带宽两个参数来决定，其中，带宽由subchannelsize和numsubchannel两个参数决定，BWP中没有用于侧行链路传输的频率资源可以用于蜂窝网数据传输。此外，用于D2D传输的时隙分布在上行子帧中，时域上，可以采用比特图(bit-map)的方式来指示哪些上行子帧可以用于侧行链路传输。比特(bit)1表示该上行子帧可以用于侧行链路传输，比特(bit)0表示该上行子帧不能用于侧行链路传输。其他子帧如下行子帧，例如，用于发送系统同步块(System Synchronization/Physical Broadcast Channel,SS/PBCH)的子帧等不能用于侧行链路传输。
图3是本申请实施例提供的一个侧行链路时隙结构组成的示意图。参见图3，序号0～13对应的每个格子代表一个符号，符号0～符号13构成一个时隙，该时隙可以为用于侧行链路传输的时隙，也可以称为侧行链路时隙。具体的，一个侧行链路时隙内的信道的分布如图3所示，物理侧行共享信道(physical side link share channel，PSSCH)分布在符号4～符号9，物理侧行控制信道(physical side link controlchannel，PSCCH)分布在符号4和符号5，物理侧行反馈信道(physical side link feedback channel，PSFCH)分布在符号12，PSCCH/PSSCH的自动增益控制(automatic gain control，AGC)分布在时隙3，PSFCH的ACG分布在符号11，间隔GAP分布在符号10和符号13。基站通过RRC信令配置给终端设备PSSCH的起始符号数startSLsymbols和PSSCH在一个时隙内占据的符号长度lengthSLsymbols。PSFCH在PSSCH的后面，间隔2个符号(symbol)，两个符号分别为GAP和AGC，分别用于收发转换和自动增益控制，在PSFCH后还存在一个符号的GAP，也用作收发转换。如图3所示，PSSCH的起始符号数startSLsymbols＝3，PSSCH在一个时隙内占据的符号长度lengthSLsymbols＝11。
应理解，图3只是示意性的给出一种侧行链路时隙中包含PSFCH的时隙结构，在一些侧行链路时隙结构中也可以不包含PSFCH。无论时隙是否包含PSFCH，时隙的最后一个符号都可以为GAP，GAP也可以称为空白符号。
图2和图3分别对授权频段的D2D技术的资源配置方式以及侧行链路时隙的组成结构进行描述说明，由于当前的NR-V2X中配置的资源池不够灵活，因此不适用于大包非周期性的业务，例如AR/VR数据传输场景。同时，所以当前授权频段的D2D技术固定的资源池的资源配置方式也不适用于非授权频段。
有鉴于此，本申请提出一种侧行链路资源配置的方法，能够实现灵活的D2D资源配置。
参见图4，图4是本申请提出的一种侧行链路资源配置的方法的示意性流程图。
S410，发送端确定第一指示信息。第一指示信息承载于第一侧行控制信息(sidelink control indication,SCI)，所述第一SCI包括第一指示信息，第一指示信息指示第一时隙是否存在空白符号，空白符号位于第一时隙的最后N个符号，N为自然数。
也可以理解，第一指示信息指示第一时隙的最后N个符号是否为空白符号，N为自然数。
也可以理解，第一指示信息指示第一时隙的最后一个或最后多个符号是否为空白符号。 以上关于第一指示的三种说法在本申请中表示的含义相同。
需要说明的，空白符号是指终端设备不能在该符号上进行发送，但不限制终端设备端在该符号上不能进行接收。由于该符号不能用于发送，对应的，即使终端设备可以进行接收，也接收不到任何信息。
可选的，第一指示信息为1比特的信息，第一指示信息指示第一时隙的最后一个或最后多个符号是否为空白符号。作为示例，在本实施中，第一指示信息为0指示在第一时隙中没有预留空白符号，第一指示信息为1指示第一时隙的最后一个或最后多个符号为空白符号，空白符号可以理解为图2或图3中的GAP符号。
可选的，第一指示信息为多比特的信息，第一指示信息指示第一时隙的最后N个符号为空白符号，其中，N为大于或等于0的整数。应理解，由于第一指示信息为多比特的信息，因此，第一指示信息可以直接指示预留的空白符号的具体个数。例如，第一指示信息为2比特的信息，第一指示信息为00指示在第一时隙中没有预留空白符号，第一指示信息为10指示第一时隙的最后2个符号为空白符号，第一指示信息为11指示第一时隙的最后3个符号为空白符号。
可选的，发送端确定第一时隙中需要预留的空白符号的个数。
可选的，当N不等于0时，发送端根据第一时隙的子载波间隔确定第一时隙中需要预留的空白符号的个数。
例如：如图5所示，图5是本申请实施例提供的第一时隙的子载波间隔为15kHz、30kHz、60kHz时预留的空白符号的图样示意图。图5中#0～#13对应的格子分别对应第一时隙的一个符号。可以看出，第一时隙的子载波间隔为15kHz或30kHz，发送端预留第一时隙中的最后1个符号(即#13对应的符号)为空白符号；或者，第一时隙的子载波间隔为60kHz，发送端预留第一时隙中的最后2个符号(即#12和#13对应的符号)为空白符号。另外，第一时隙的子载波间隔为120kHz，发送端预留第一时隙中的最后4个符号为空白符号；或者，第一时隙的子载波间隔为240kHz，发送端预留第一时隙中的最后8个符号为空白符号。
需要说明的是，前述第一时隙是不存在PSFCH的侧行链路时隙，若侧行链路时隙中存在PSFCH，那么侧行链路的时隙组成可以参见图11，这里暂不展开叙述。
S420，发送端在第一时隙上发送第一SCI。
对应的，接收端在第一时隙上接收第一SCI。
S430，接收端根据第一指示信息确定第一时隙是否存在空白符号。
可选的，第一指示信息为1比特的信息，作为示例，所述第一指示信息为0，表示发送端在第一时隙中没有预留空白符号，所述第一指示信息为1，表示发送端预留了第一时隙中最后一个或最后多个符号为空白符号。或者，第一指示信息的取值为1，表示发送端在第一时隙中没有预留空白符号，所述第一指示信息的取值为0，表示发送端预留了第一时隙中最后一个或最后多个符号为空白符号。接收端还可以进一步根据第一时隙的子载波间隔确定第一时隙中预留的空白符号的具体个数，空白符号的个数与子载波间隔的对应关系参见前文描述，这里不再赘述。本申请实施例中的发送端和接收端可以为终端设备。
下面对上述实施例的技术效果进行说明。
首先，由图3可以看出，侧行链路时隙的最后一个符号是不发送任何信号的GAP， 其作用是收发切换。需要说明的是，侧行链路时隙中GAP分布的符号在本申请中可以理解为空白符号。对于一些周期性发送的数据包或者一些小数据包发送的场景来说，在每个时隙中存在空白符号对数据的发送可能没有影响，但是针对连续发送大数据的场景来说，一些大的数据包的传输时间可能要占用连续的多个时隙，在每个时隙中额外保留一个符号的GAP会导致数据包因为空白符号的存在而不能被连续发送，从而造成资源的浪费。
其次，当第一时隙的最后若干个符号为空白符号时，接收端可以在第一时隙的空白符号上进行LBT或收发切换，从而实现非授权频段的COT共享。
因此，当第一指示信息指示第一时隙的最后一个或多个符号为非空白符号，接收端可以在该第一时隙上进行大数据包的发送，从而实现周期性大数据包的连续发送。当第一指示信息指示第一时隙的最后一个或多个符号为空白符号，接收端可以在第一时隙的空白符号上进行LBT或收发切换，从而实现非授权频段的COT共享。
下面以发送端在非授权频段中抢占到COT的场景为例，对上述技术效果进行具体说明。
图6是本申请实施例提供的发送端抢占到的一个COT的帧结构示意图。参见图6，图6中每个小方格代表一个时隙，可以看出时隙#0～时隙#6对应的小方格代表发送端抢占到的一个COT，该COT帧结构为TTTTRRR，每个T或R分别对应一个时隙，对应关系如图6所示。其中，T表示发送端在对应的时隙上发送侧行链路信息，R表示发送端在对应的时隙上接收侧行链路信息。
应理解，接收端通过该COT帧结构可以实现COT共享，COT中被配置成R的时隙为共享给接收端用于侧行链路信息发送的时隙。发送端确定时隙#0～时隙#3(即COT中为T的时隙)中需要预留的空白符号的个数。
为了实现接收端能够进行COT共享，接收端需要16us或25us的时间做一次COT内LBT，这样发送端就需要在时隙#3中为发送端提前预留出空白符号以便接收端进行LBT，另外，为支持不同的子载波间隔，发送端需要在时隙#3中预留的空白符号的个数是不同。例如：当时隙#3的子载波间隔为15kHz或30kHz时，只需要留出时隙#3的最后1个空白符号；当子载波间隔为60kHz时，需要留出时隙#3的最后2个空白符号。
另外，COT中时隙#0～时隙#2的最后一个符号也可以不再配置为用于收发切换的GAP，即不预留空白符号，发送端可以利用时隙#0～时隙#2中的最后一个符号进行侧行链路信息的发送，从而可以满足接收端连续发送的需求。
(2)发送端根据时隙#0～时隙#3(即COT中为T的时隙)中每个时隙需要预留的空白符号的个数确定并发送时隙#0～时隙#3对应的第一指示信息，第一指示信息用于指示对应的时隙的最后一个或最后多个符号是否为空白符号，每个时隙对应的第一指示信息携带在该时隙对应的SCI中。可以理解，在本申请实施例中，可以在每一个时隙中包括一个第一指示信息，用于指示该时隙中最后一个或多个符号是否为空白符号。
例如，发送端在时隙#0发送SCI#0，SCI#0中携带指示信息#0，指示信息#0指示时隙#0没有在时隙#0中预留空白符号，应理解，这里的指示信息#0即表示时隙#0对应的第一指示信息，关于时隙#1～时隙#2中发送的SCI#1～SCI#2的信息与SCI#0类似，这里不再赘述。发送端在时隙#3发送SCI#3，SCI#3中携带指示信息#3，为了接收端可以共享COT中时隙#4～时隙#6对应的资源，若指示信息#0为1比特，指示信息#3指示时隙#3的最后 若干个符号为空白符号，由接收端根据子载波间隔确定具体的空白符号个数；若指示信息#0为多比特，这里以子载波间隔为60kHz为例，指示信息#3也可以直接指示时隙#3的最后2个符号为空白符号。
可选的，为降低SCI的解析复杂度，针对是否进行COT共享，可以在SCI#0中采用1比特的信息来指示使能或禁止COT共享功能，例如：当该1比特的信息的值为0表示禁止COT共享功能，1表示使能COT共享功能，反之亦可。
可选的，该COT帧结构(例如：TTTTRRR)可以是预先协议规定的几种常用的COT结构中的一种。当使能COT共享功能时，可选的，发送端可以将COT帧结构对应的索引序号携带在SCI#0中；可选的，发送端也可以直接将COT帧结构信息携带在SCI#0中。可以理解，COT帧结构信息为COT中包括的T时隙和R时隙的位置信息，例如，可以用0表示对应的时隙用于发送端发送侧行链路信息(即0代表T)，可以用1表示对应的时隙用于发送端接收侧行链路信息(即1代表R)，那么该COT的帧结构信息TTTTRRR可以表示为00001111，反之亦可。当禁止COT共享功能时，可选的，可以预先规定的一个特殊COT帧结构，该特殊的COT结构可以指示当前禁用COT共享功能。发送端可以将该特殊的COT帧结构对应的索引序号携带在SCI#0中；可选的，发送端也可以直接将该特殊的COT帧结构信息携带在SCI#0中。
(3)发送端在时隙#0～时隙#3(即COT中为T的时隙)中发送对应的SCI#0～SCI#3。
对应的，接收端在时隙#0～时隙#3接收到对应的SCI#0～SCI#3。接收端根据SCI#0～SCI#3中的指示信息确定时隙#0～时隙#3中的预留的空白符号的个数，从而接收端可以在留出空白符号的时隙#3上进行COT内的LBT，实现COT共享。
上述技术方案中，如果在COT中的时隙#0～时隙#2的最后一个符号不预留空白符号，可满足发送端在COT上进行大数据包连续发送的需求。另外，在时隙#3中预留若干个空白符号，接收端可以在时隙#3的空白符号上进行LBT或收发切换，从而实现COT共享。
NR-V2X当前的资源池配置方式除了不支持终端设备在非授权频段中进行COT共享，NR-V2X当前的PSFCH的配置方式也不适用于非授权频段。具体而言，参见图7，图7是NR-V2X中PSFCH信道的资源配置方式的示意图。图7中每个小格子代表一个时隙。在资源池中，用于发送反馈信道的PSFCH以周期性的方式通过上层信令(例如：RRC)配置给用户，PSFCH信道的周期的配置参数为periodPSFCHresource，例如periodPSFCHresource可以配置为0时隙或者2时隙或者4时隙。该参数配置为0表示当前的资源池中不存在PSFCH信道，该参数配置为2表示PSFCH信道以2个时隙的间隔出现，图7中以periodPSFCHresource＝4时隙为例进行示意。侧行链路发端用户通过PSCCH中携带的1比特信息来指示当前时隙是否存在PSFCH信道。PSFCH携带混合自动重传请求(hybrid automatic repeat request，HARQ)信息来反馈PSSCH的解调结果，PSSCH和PSFCH之间存在一定的对应的关系，PSFCH所反馈的HARQ信息与PSSCH的最小时间间隔的配置参数为MinTimeGapPSFCH，例如MinTimeGapPSFCH可以配置为2时隙或者3时隙，图7中以MinTimeGapPSFCH＝2时隙为例进行示意，该参数配置为2表示当前PSFCH所反馈的HARQ信息可以为当前PSFCH所在的时隙往前2个时隙(包括当前PSFCH所在时隙)之前的时隙中PSSCH的解调结果。例如：由图7可以看出，第一个时隙的PSSCH对应的HARQ信息在第一个包含PSFCH的时隙中进行反馈，第一个虚线框 中的4个时隙的PSSCH对应的HARQ信息在第二个包含PSFCH的时隙中进行反馈，第三个虚线框中的4个时隙的PSSCH对应的HARQ信息在第三个包含PSFCH的时隙中进行反馈，依次类推。
由于在非授权频段中，发送端在接入信道前需要进行LBT，由于LBT的不确定性，COT的起始时间可以在用于侧行链路传输的时隙上的任何一个时间点，图7中周期性配置的PSFCH信道可能会导致COT中出现不必要的PSFCH，使得在COT中出现较长时间(至少4个符号)的GAP，导致发端用户需要再次抢占信道，因此，这种PSFCH信道的配置方式并不适用于非授权频段。
有鉴于此，本申请提出一种侧行链路资源配置的方法，可以在共享频段中灵活的配置PSFCH信道以反馈HARQ信息。
参见图8，图8是本申请提出的另一种侧行链路资源配置的方法的示意性流程图。
S810，发送端发送第一SCI。
对应的，接收端接收第一SCI。其中，第一SCI包括第一指示信息，第一指示信息指示第一时隙和/或第二时隙在多个时隙中的位置，第一时隙用于发送端发送第一侧行链路信息，第二时隙用于发送端接收第二侧行链路信息。
S820，发送端或接收端根据第一时隙在多个时隙中的位置和第一周期确定第一反馈时隙，根据第二时隙在多个时隙中的位置和第二周期确定第二反馈时隙。其中，第一周期为第一反馈时隙在第一时隙中的周期，接收端可以在第一反馈时隙上向发送端发送第一混合自动重传请求HARQ信息。第二周期为第二反馈时隙在所述第二时隙中的周期，接收端可以在第二反馈时隙上接收来自发送端的第二HARQ信息。可以理解，第一反馈时隙为第一时隙中存在PSFCH信道的时隙。第二反馈时隙为第二时隙中存在PSFCH信道的时隙。
在一种实现方式中，第一周期或第二周期可以承载于第一SCI。
在另一种实现方式中，第一周期或第二周期可以承载于高层信令。
应理解，在第一反馈时隙中既包括有接收端能够发送第一HARQ信息的PSFCH信道，也包括有发送端能够发送第一侧行链路信息的PSSCH信道。在第二反馈时隙中既包括有接收端能够接收第二HARQ信息的PSFCH信道，也包括有发送端能够接收第二侧行链路信息的PSSCH信道。
应理解，第一周期或第二周期对应的取值可以为0或正整数。
可选的，当第一周期取值为0，表示第一时隙中不存在第一反馈时隙；同理，当第二周期取值为0，表示第二时隙中不存在第二反馈时隙。
可选的，第一周期也可以不配置，在不配置的情况下默认第一时隙中不存在第一反馈时隙；同理，第二周期也可以不配置，在不配置的情况下也默认第二时隙中不存在第二反馈时隙。应理解，PSFCH用于携带HARQ信息来反馈侧行链路信息的解调结果。
当需要接收端针对发送端发送的第一侧行链路信息反馈第一HARQ信息时，那么，第一周期可以不为0，此时，第一时隙中存在第一反馈时隙。
那么，接收端根据第一指示信息中第一时隙的位置和第一周期可以确定第一时隙中存在的第一反馈时隙的位置，从而可以在第一反馈时隙中反馈第一HARQ信息。对应的，发送端根据第一指示信息中第一时隙的位置和第一周期也可以确定第一时隙中存在的第一反馈时隙的位置，从而可以在第一反馈时隙中接收第一HARQ信息。
当需要发送端针对接收的第二侧行链路信息反馈第二HARQ信息时，那么，第二周期可以不为0，此时，第二时隙中存在第二反馈时隙。
同理，发送端根据第一指示信息中第二时隙的位置和第二周期可以确定多个第二时隙中存在第二反馈时隙，从而可以在第二反馈时隙中反馈第二HARQ信息。对应的，接收端根据第一指示信息中第二时隙的位置和第二周期可以确定多个第二时隙中存在第二反馈时隙，从而可以在第二反馈时隙中接收第二HARQ信息。
在一种实现方式中，接收端在第一时隙上接收第一侧行链路信息，若在第一反馈时隙中反馈第一HARQ信息，则第一SCI还包括第一最小时间间隔，第一最小时间间隔为第一PSFCH与第一PSFCH对应的第一PSSCH之间的最小时间间隔，第一PSFCH用于承载第一HARQ信息。具体而言，第一反馈时隙中存在第一PSFCH，第一PSFCH上所传输的第一HARQ信息是针对在第一PSSCH上传输的数据的反馈信息，第一PSFCH和对应的第一PSSCH一般不在一个时隙中。第一PSSCH所在的时隙在时间上早于第一PSFCH所在的时隙，并且一个第一PSFCH一般可以对应多个第一PSSCH。因此，可以将第一PSFCH与多个第一PSSCH中时间间隔最近的第一PSSCH之间的时间间隔称之为第一最小时间间隔，该第一最小时间间隔的单位为时隙。
在一种实现方式中，发送端在第二时隙上接收第二侧行链路信息，若在第二反馈时隙中反馈第二HARQ信息，则第一SCI还包括第二最小时间间隔，第二最小时间间隔为第二PSFCH与第二PSFCH对应的第二PSSCH之间的最小时间间隔，第二PSFCH用于承载第二HARQ信息。对于第二最小时间间隔的说明可以参考第一最小时间间隔，此处不再赘述。
可选的，发送端也可以通过高层信令将第一最小时间间隔和/或第二最小时间间隔发送给接收端。关于最小时间间隔也可参见图7中的描述，这里不再赘述。
上述技术方案中，通过第一指示信息对多个时隙中的第一时隙和/或第二时隙的位置进行指示，且对第一周期和/或第二周期进行配置，发送端和/或接收端能够识别在哪些时隙上进行数据的发送和/或接收，以及在哪些时隙上进行反馈信息的发送和/或接收。
下面以发送端在非授权频段中抢占到COT的场景为例，对图8中的PSFCH的配置方法进行详细说明。在本实施例中，发送端设备和接收端设备在基站配置的侧行链路传输的时频资源上进行数据通信。
参见图9，图9是本申请实施例提供的发送端抢占到的另一个COT的帧结构示意图。图9中每个小方格代表一个时隙，可以看出全部的时隙#0～时隙#9对应的小方格代表抢占到的一个COT，该COT帧结构为TTTTRRRRTT，每个T或R分别对应一个时隙，对应关系如图9所示，T表示对应的时隙用于发送端发送侧行链路信息，R表示对应的时隙用于发送端接收侧行链路信息。该COT中被配置成R的时隙可以共享给接收端用于侧行链路信息发送。
下面结合图9给出的COT帧结构具体说明在非授权频段中如何配置PSFCH。
参见图10，图10是本申请提出的又一种侧行链路资源配置的方法的示意性流程图。
S1010，发送端在时隙#0发送第一SCI。第一SCI中包括第一指示信息，第一指示信息指示发送端抢占的COT的帧结构信息。
对应的，接收端在时隙#0接收第一SCI。
可以理解，COT帧结构信息为COT中包括的T时隙和R时隙的位置信息。
在本实施例中，S810中的第一指示信息中的多个时隙在S1010中可以理解为图10中的COT，即时隙#0～时隙#9，S810中的第一时隙可以理解为该COT中为T的时隙，即时隙#0～时隙#3、时隙#8～时隙#9，第二时隙可以理解为该COT中为R的时隙，即时隙#4～时隙#7。
可选的，第一指示可以指示发送端抢占的COT的帧结构的索引，接收端可根据COT的帧结构的索引确定该COT的帧结构的信息。
可选的，第一指示信息可以指示发送端抢占的COT的帧结构信息，例如，可以用0表示对应的时隙用于发送端发送侧行链路信息(即0代表T)，可以用1表示对应的时隙用于发送端接收侧行链路信息(即1代表R)，那么该COT的帧结构信息TTTTRRR可以表示为00001111，反之亦可。
此外，第一SCI中还包括第一周期和/或第二周期。由图7可知，PSFCH用于携带HARQ信息来反馈PSSCH的解调结果，那么，在本实施例图9抢占的COT中，第一周期可以理解为该COT中为T的时隙中存在PSFCH的时隙的周期，第二周期可以理解为COT中为R的时隙中存在PSFCH的时隙的周期。从图9可以看出，第一周期为3，表示在该COT中为T的时隙中从时隙#0开始每隔3个时隙存在一个包含PSFCH的时隙，即该COT中为T的时隙中存在PSFCH的时隙为时隙#2和时隙#9；第二周期为2，表示在该COT中为R的时隙中从时隙#4开始每隔2个时隙存在一个包含PSFCH的时隙，即该COT中为R的时隙中存在PSFCH的时隙为时隙#5和时隙#7。
可选的，发送端若有侧行链路信息需要发送，且需要接收端针对发送的侧行链路信息反馈HARQ信息，执行步骤S1020～S1040。
S1020，发送端在COT中为T的时隙上发送第一侧行链路信息。
对应的，接收端在COT中为T的时隙上接收第一侧行链路信息。第一侧行链路信息携带在发送该第一侧行链路信息的时隙对应的PSSCH中。
S1030，接收端根据第一指示信息和第一周期确定COT中为T的时隙中存在PSFCH的时隙的位置。
接收端根据该COT帧结构信息，提取该COT帧结构中为T的时隙，根据第一周期的取值，计算出该COT中为T的时隙中存在PSFCH的时隙的位置。具体的，接收端根据第一指示信息提取时隙#0～时隙#3、时隙#8～时隙#9，由于第一周期为3，那么接收端可以确定从时隙#0开始每隔3个时隙存在一个包含PSFCH的时隙，即该COT中为T的时隙中存在PSFCH的时隙为时隙#2和时隙#9。
S1040，接收端在对应的存在PSFCH的时隙上反馈第一HARQ信息。其中，第一HARQ信息包括第一侧行链路信息的解调结果。
第一SCI中还包括第一最小时间间隔，第一最小时间间隔为该COT中为T的时隙中反馈的HARQ信息的PSFCH与该HARQ信息对应的PSSCH之间的最小时间间隔。这里以第一最小时间间隔为2时隙为例，说明接收端如何确定PSSCH对应的HARQ信息在哪个存在PSFCH的时隙上进行反馈。
由于第一最小时间间隔为2，因此，接收端在时隙#0接收的侧行链路信息#0，可以在时隙#2反馈对应的HARQ信息#0，接收端在时隙#3接收的侧行链路信息#3，可以在时隙 #9反馈对应的HARQ信息#3。由于时隙#2最晚只能反馈HARQ信息#0，时隙#9最晚只能反馈HARQ信息#3，因此，对于在时隙#1接收的侧行链路信息#1和在时隙#2接收的侧行链路信息#2都需要在时隙#9在进行相应的HARQ反馈。
同理，发送端根据上述步骤在对应的存在PSFCH的时隙上接收第一HARQ信息，这里不再赘述。
由于发送端将COT中部分时隙(例如图9中的R)共享给了接收端用于数据的发送,可选的，接收端在解得发送端发送的第一SCI中指示的COT的帧结构信息后，若有侧行链路信息需要发送，且需要发送端针对发送的侧行链路信息反馈HARQ信息，执行步骤S950～S970。
S1050，接收端在COT中为R的时隙上发送第二侧行链路信息。
对应的，发送端在COT中为R的时隙上接收第二侧行链路信息。第二侧行链路信息携带在发送该第二侧行链路信息的时隙对应的PSSCH中。
S1060，发送端根据COT帧结构信息和第二周期确定存在PSFCH的时隙的位置。
发送端根据该COT帧结构信息，提取该COT帧结构中为R的时隙，根据第二周期的取值，计算出该COT中为R的时隙中存在PSFCH的时隙的位置。具体的，发送端提取时隙#4～时隙#7，由于第二周期为2，那么发送端可以确定从时隙#4开始每隔2个时隙存在一个包含PSFCH的时隙，即该COT中为R的时隙中存在PSFCH的时隙为时隙#5和时隙#7。
S1070，发送端在对应的存在PSFCH的时隙上反馈第二HARQ信息。其中，第二HARQ信息包括第二侧行链路信息的解调结果。
第一SCI中还包括第二最小时间间隔，第二最小时间间隔为该COT中为R的时隙中反馈HARQ信息的PSFCH所与该HARQ信息对应的PSSCH之间的最小时间间隔。这里以第二最小时间间隔为2时隙为例，说明接收端如何确定PSSCH对应的HARQ信息在哪个存在PSFCH的时隙上进行反馈。
由于第二最小时间间隔为2，因此，接收端在时隙#5接收的侧行链路信息#5在时隙#7反馈对应的HARQ信息#5。由于时隙#7最晚只能反馈HARQ信息#5，时隙#5不满足反馈在时隙#4接收的侧行链路信息#4对应的HARQ信息#4的条件(即不满足第二最小时间间隔)，因此，对于HARQ信息#4需要在时隙#7上进行反馈。
同理，接收端根据上述步骤在对应的存在PSFCH的时隙上接收第二HARQ信息，这里不再赘述。
上述技术方案中，PSFCH资源的配置方式由静态周期配置方式改为动态灵活的配置方式。本申请中动态灵活的配置方式避免了PSFCH资源的固定配置方式不匹配发送端实际COT的问题，在SCI中动态指示PSFCH的周期信息，可以灵活配置PSFCH的出现频率和位置。
需要说明的是，本申请实施例中对于存在PSFCH的时隙，这里以图9中时隙2为例，如果接收端需要在时隙2的PSFCH中进行HARQ反馈，那么接收端需要在使用PSFCH之前先进行LBT或收发切换，也就是说发送端需要在时隙2中存在PSFCH的符号之前给接收端预留出空白符号进行LBT或收发切换，而图5对应的空白符号的配置方式不考虑在时隙中PSFCH的存在，因此，如果接收端发现一个时隙为存在PSFCH的时隙，则图4、 图5和图6对应的实施例中用于指示该时隙是否存在空白符号的指示信息在此无效，接收端可以忽略该指示信息，而是以预定或规定的方式确定该时隙中空白符号的位置。
参见图11，图11是本申请实施例提供的存在PSFCH资源的时隙的子载波间隔为15kHz、30kHz、60kHz时预留的空白符号的图样示意图。序号0～13对应的所有格子代表一个侧行链路时隙，其中，每个格子代表一个符号。由图11可以看出，当第一时隙的子载波间隔为15kHz或30kHz，发送端预留第一时隙中的最后1个符号(即#13对应的符号)和倒数第4个符号(即#10对应的符号)为空白符号；或者，第一时隙的子载波间隔为60kHz，发送端预留第一时隙中的最后2个符号(即#12#和13对应的符号)和倒数第5、第6个符号(即#8和#9对应的符号)为空白符号。因此，可以理解，当一个时隙中存在PSFCH时，该时隙中空白符号的位置为该PSFCH的AGC之前的符号以及该PSFCH之后的符号，符号个数可以为一个或两个，具体个数由子载波间隔确定。
应理解，本申请中的发送端和接收端都是根据上述方法实施例中的SCI的发送方向或接收方向划分的，但并不表示本申请实施例中发送端只能用于发送，不能用于接收，也不表示本申请实施例中接收端只能用于接收，不能用于发送。在一些实现方式中，发送端和接收端也可以互换，即接收端也可能为上述方法实施例中的发送端，发送端也可能为上述方法实施例中的接收端。
可以理解，本申请所有实施中的发送端和接收端可以为终端设备。
以上对本申请提供的侧行链路资源配置的方法进行了详细说明，下面介绍本申请提供的通信装置。
参见图12，图12为本申请提供的通信装置1000的示意性框图。如图12，通信装置1000包括接收单元1100和处理单元1200。
接收单元1100，用于在第一时隙上接收第一侧行控制信息SCI，所述第一SCI包括第一指示信息，所述第一指示信息指示所述第一时隙是否存在空白符号，所述空白符号位于所述第一时隙的最后N个符号，N为自然数；处理单元1200，用于根据所述第一指示信息确定所述第一时隙是否存在空白符号。
可选地，在一个实施例中，如果所述第一指示信息指示所述第一时隙存在空白符号，所述处理单元1200，还用于根据所述第一指示信息和第一时隙的子载波间隔确定所述第一时隙中所述空白符号的个数N。
可选地，在另一个实施例中，所述第一时隙的子载波间隔为15kHz或30kHz，所述空白符号的个数N为1；或者所述第一时隙的子载波间隔为60kHz，所述空白符号的个数N为2。
可选地，通信装置1000还可以包括发送单元1300，用于执行发送的动作。
在另一些方案中，通信装置1000的各单元还用于执行如下步骤和/或操作。
接收单元1100，用于接收第一侧行控制信息SCI，其中，所述第一SCI包括第一指示信息，所述第一指示信息指示第一时隙和/或第二时隙在多个时隙中的位置，所述第一时隙用于所述第一终端设备接收所述第一侧行链路信息，所述第二时隙用于所述第一终端设备发送第二侧行链路信息；根据所述第一时隙在所述多个时隙中的位置和第一周期确定第一反馈时隙，根据所述第二时隙在所述多个时隙中的位置和第二周期确定第二反馈时隙，所述第一周期为第一反馈时隙在所述第一时隙中的周期，所述第一反馈时隙包括第一物理 侧行反馈信道PSFCH，所述第一PSFCH用于发送第一混合自动重传请求HARQ信息，所述第二周期为第二反馈时隙在所述第二时隙中的周期，所述第二反馈时隙包括第二PSFCH，所述第二PSFCH用于接收第二HARQ信息。
可选的，在一个实施例中，所述第一周期或所述第二周期承载于所述第一SCI或高层信令。
在另一些方案中，通信装置1000的各单元还用于执行如下步骤和/或操作。
接收单元1100，用于在第一时隙上接收第一侧行控制信息SCI，其中，所述第一侧行控制信号SCI包括第一指示信息和第一周期，所述第一指示信息用于指示第二终端设备获得的信道占用时间COT内每个时隙的方向，所述每个时隙的方向为所述第二终端设备使用所述每个时隙时对应的发送或接收侧行链路信息的方向，所述第一周期为所述COT内所述第二终端设备用于发送侧行链路信息的时隙中存在PSFCH的时隙的周期，所述第一时隙为所述第二终端设备用于发送侧行链路信息的时隙中的一个时隙；接收单元1100，还用于在所述COT内从所述第二终端设备接收第一侧行链路信息；处理单元1200，用于根据所述COT内所述第二终端设备用于发送侧行链路信号的时隙对应的位置信息和所述第一周期确定第二时隙的位置，所述第二时隙为所述COT内所述第二终端设备用于发送侧行链路信息的时隙中存在PSFCH的时隙；发送单元1300，用于在对应的第二时隙的PSFCH上向所述第二终端设备发送第一HARQ信息，所述第一HARQ信息包括所述第一侧行链路信息的解调结果。
可选地，在一个实施例中，所述第一侧行控制信号SCI还包括第一最小时间间隔，发送单元1300具体用于，根据所述第一最小时间间隔在所述对应的第一时隙的PSFCH上向所述第二终端设备发送第一HARQ信息，其中，所述第一最小时间间隔为配置有该通信装置1000的第一终端设备对所述第一侧行链路信息进行HARQ反馈的最小时间间隔。
可选地，在另一个实施例中，所述第一侧行控制信号SCI还包括第二周期，所述第二周期为所述COT内所述第二终端设备用于接收侧行链路信号的时隙中存在PSFCH的时隙周期；该方法还包括：处理单元1300，用于根据所述COT内所述第二终端设备用于接收侧行链路信息的时隙对应的位置信息和所述第二周期确定第三时隙的位置，所述第三时隙为所述COT内所述第二终端设备用于接收侧行链路信息的时隙中存在PSFCH的时隙；发送单元1300，在所述COT内向所述第二终端设备发送第二侧行链路信息；接收单元1100，用于在对应的第三时隙的PSFCH上从所述第二终端设备获取第二HARQ信息，所述第二HARQ信息包括所述第二侧行链路信息的解调结果。
可选地，接收单元1100和发送单元1300也可以集成为一个收发单元，同时具备接收和发送的功能，这里不作限定。
在一种实现方式中，通信装置1000可以为方法实施例中的接收端。在这种实现方式中，发送单元1300可以为发射器，接收单元1100可以为接收器。接收器和发射器也可以集成为一个收发器。处理单元1200可以为处理装置。
在另一种实现方式中，通信装置1000可以为安装在接收端中的芯片或集成电路。在这种实现方式中，发送单元1300和接收单元1100可以为通信接口或者接口电路。例如，发送单元1300为输出接口或输出电路，接收单元1100为输入接口或输入电路，处理单元1200可以为处理装置。
其中，处理装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。例如，处理装置可以包括存储器和处理器，其中，存储器用于存储计算机程序，处理器读取并执行存储器中存储的计算机程序，使得通信装置1000执行各方法实施例中由接收端执行的操作和/或处理。可选地，处理装置可以仅包括处理器，用于存储计算机程序的存储器位于处理装置之外。处理器通过电路/电线与存储器连接，以读取并执行存储器中存储的计算机程序。又例如，处理装置可以芯片或集成电路。
参见图13，图13为本申请提供的通信装置2000的示意性框图。如图13，通信装置2000包括处理单元2100和发送单元2200。
处理单元2100，用于确定第一指示信息，所述第一指示信息承载于第一侧行控制信息SCI，第一指示信息指示所述第一时隙是否存在空白符号，所述空白符号位于所述第一时隙的最后N个符号，N为自然数；发送单元2200，用于在第一时隙上发送第一SCI。
可选地，在另一个实施例中，处理单元2100还用于：根据第一时隙的子载波间隔确定第一时隙中空白符号的个数N。
可选地，在另一个实施例中，第一时隙的子载波间隔为15kHz或30kHz，空白符号的个数N为1；或者第一时隙的子载波间隔为60kHz，空白符号的个数N为2。
可选地，通信装置2000还可以包括接收单元2300，用于执行接收的动作。
在另一些方案中，通信装置2000的各单元还用于执行如下步骤和/或操作。
发送单元2200，用于发送第一侧行控制信息SCI，其中，第一SCI包括第一指示信息，第一指示信息指示第一时隙和/或第二时隙在多个时隙中的位置，第一时隙用于第二终端设备发送第一侧行链路信息，第二时隙用于第二终端设备接收第二侧行链路信息；根据所述第一时隙在所述多个时隙中的位置和第一周期确定第一反馈时隙，根据所述第二时隙在所述多个时隙中的位置和第二周期确定第二反馈时隙，第一周期为第一反馈时隙在第一时隙中的周期，所述第一反馈时隙包括第一物理侧行反馈信道PSFCH，所述第一PSFCH用于接收第一混合自动重传请求HARQ信息，第二周期为第二反馈时隙在第二时隙中的周期，所述第二反馈时隙包括第二PSFCH，所述第二PSFCH用于发送第二HARQ信息。
可选的，在一个实施例中，所述第一周期或所述第二周期承载于所述第一SCI或高层信令。
在另一些方案中，通信装置2000的各单元还用于执行如下步骤和/或操作。
发送单元2200，用于在第一时隙上发送第一侧行控制信息SCI，所述第一侧行控制信号SCI包括第一指示信息和第一周期，所述第一指示信息用于指示配置有该通信装置2000的第二终端设备获得的COT内每个时隙的方向，所述每个时隙的方向为所述第二终端设备使用所述每个时隙时对应的发送或接收侧行链路信息的方向，所述第一周期为所述COT内所述第二终端设备用于发送侧行链路信息的时隙中存在PSFCH的时隙的周期，所述第一时隙为所述第二终端设备用于发送侧行链路信息的时隙中的一个时隙；发送单元2200，还用于在所述COT内向所述第一终端设备发送第一侧行链路信息；处理单元2100，用于根据所述COT内所述第二终端设备用于发送侧行链路信息的时隙对应的位置信息和所述第一周期确定第二时隙的位置，所述第二时隙为所述COT内所述第二终端设备用于发送侧行链路信息的时隙中存在PSFCH的时隙；接收单元2300，用于在对应的第二时隙的PSFCH上从所述第一终端设备获取第一HARQ信息，所述第一HARQ信息包括所述第一 侧行链路的解调结果。
可选地，在一个实施例中，所述第一侧行控制信息SCI还包括第二周期，所述第二周期为所述COT内所述第二终端设备用于接收侧行链路信息的时隙中存在PSFCH的时隙周期；所述方法还包括：处理单元2100，用于根据所述COT内所述第二终端设备用于接收侧行链路信息的时隙对应的位置信息和所述第二周期确定第三时隙的位置，所述第三时隙为所述COT内所述第二终端设备用于接收侧行链路信息的时隙中存在PSFCH的时隙；接收单元2300，用于在所述COT内从所述第一终端设备接收第二侧行链路信息；发送单元2200，用于在对应的第三时隙的PSFCH上向所述第一终端设备发送第二HARQ信息，所述第二HARQ信息包括所述第二侧行链路的解调结果。
可选地，在另一个实施例中，所述第一侧行控制信号SCI还包括第二最小时间间隔，发送单元2200具体用于：根据所述第二最小时间间隔在所述对应的第三时隙的PSFCH上向所述第一终端设备发送第二HARQ信息，其中，所述第二最小时间间隔为配置有该通信装置的第二终端设备对所述第二侧行链路信息进行HARQ反馈的最小时间间隔。
可选地，接收单元2300和发送单元2200也可以集成为一个收发单元，同时具备接收和发送的功能，这里不作限定。
在一种实现方式中，通信装置2000可以为方法实施例中的发送端。在这种实现方式中，发送单元2200可以为发射器，接收单元2300可以为接收器。接收器和发射器也可以集成为一个收发器。处理单元2100可以为处理装置。
在另一种实现方式中，通信装置2000可以为安装在发送端中的芯片或集成电路。在这种实现方式中，发送单元2200和接收单元2300可以为通信接口或者接口电路。例如，发送单元2200为输出接口或输出电路，接收单元2300为输入接口或输入电路，处理单元2100可以为处理装置。
其中，处理装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。例如，处理装置可以包括存储器和处理器，其中，存储器用于存储计算机程序，处理器读取并执行存储器中存储的计算机程序，使得通信装置2000执行各方法实施例中由发送端执行的操作和/或处理。可选地，处理装置可以仅包括处理器，用于存储计算机程序的存储器位于处理装置之外。处理器通过电路/电线与存储器连接，以读取并执行存储器中存储的计算机程序。又例如，处理装置可以芯片或集成电路。
参见图14，图14为本申请提供的通信装置10的示意性结构图。如图14，通信装置10包括：一个或多个处理器11，一个或多个存储器12以及一个或多个通信接口13。处理器11用于控制通信接口13收发信号，存储器12用于存储计算机程序，处理器11用于从存储器12中调用并运行该计算机程序，以使得本申请各方法实施例中由接收端执行的流程和/或操作被执行。
例如，处理器11可以具有图12中所示的处理单元1200的功能，通信接口13可以具有图12中所示的发送单元1300和/或接收单元1100的功能。具体地，处理器11可以用于执行本申请各方法实施例中由接收端内部执行的处理或操作，通信接口13用于执行本申请各方法实施例中由接收端执行的发送和/或接收的动作。
在一种实现方式中，通信装置10可以为方法实施例中的接收端。在这种实现方式中，通信接口13可以为收发器。收发器可以包括接收器和发射器。
可选地，处理器11可以为基带装置，通信接口13可以为射频装置。
在另一种实现中，通信装置10可以为安装在接收端中的芯片。在这种实现方式中，通信接口13可以为接口电路或者输入/输出接口。
参见图15，图15是本申请提供的通信装置20的示意性结构图。如图15，通信装置20包括：一个或多个处理器21，一个或多个存储器22以及一个或多个通信接口23。处理器21用于控制通信接口23收发信号，存储器22用于存储计算机程序，处理器21用于从存储器22中调用并运行该计算机程序，以使得本申请各方法实施例中由发送端执行的流程和/或操作被执行。
例如，处理器21可以具有图13中所示的处理单元2100的功能，通信接口23可以具有图13中所示的发送单元2200和/或接收单元2300的功能。具体地，处理器21可以用于执行本申请各方法实施例中由发送端内部执行的处理或操作，通信接口23用于执行本申请各方法实施例中由发送端执行的发送和/或接收的动作，不再赘述。
在一种实现方式中，通信装置20可以为方法实施例中的发送端。在这种实现方式中，通信接口13可以为收发器。收发器可以包括接收器和发射器。
可选地，处理器11可以为基带装置，通信接口13可以为射频装置。
在另一种实现中，通信装置20可以为安装在发送端中的芯片。在这种实现方式中，通信接口13可以为接口电路或者输入/输出接口。
可选的，上述各装置实施例中的处理器与存储器可以是物理上相互独立的单元，或者，存储器也可以和处理器集成在一起，本文不做限定。
此外，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得本申请各方法实施例中由接收端执行的操作和/或流程被执行。
本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得本申请各方法实施例中由发送端执行的操作和/或流程被执行。
本申请还提供一种计算机程序产品，计算机程序产品包括计算机程序代码或指令，当计算机程序代码或指令在计算机上运行时，使得本申请各方法实施例中由接收端执行的操作和/或流程被执行。
本申请还提供一种计算机程序产品，计算机程序产品包括计算机程序代码或指令，当计算机程序代码或指令在计算机上运行时，使得本申请各方法实施例中由发送端执行的操作和/或流程被执行。
此外，本申请还提供一种芯片，所述芯片包括处理器。用于存储计算机程序的存储器独立于芯片而设置，处理器用于执行存储器中存储的计算机程序，以使得任意一个方法实施例中由接收端执行的操作和/或处理被执行。
进一步地，所述芯片还可以包括通信接口。所述通信接口可以是输入/输出接口，也可以为接口电路等。进一步地，所述芯片还可以包括所述存储器。
本申请还提供一种芯片，所述芯片包括处理器。用于存储计算机程序的存储器独立于芯片而设置，处理器用于执行存储器中存储的计算机程序，以使得任意一个方法实施例中由发送端器执行的操作和/或处理被执行。
进一步地，所述芯片还可以包括通信接口。所述通信接口可以是输入/输出接口，也可以为接口电路等。进一步地，所述芯片还可以包括所述存储器。
此外，本申请还提供一种通信系统，包括本申请实施例中的接收端和发送端。
本申请实施例中的处理器可以是集成电路芯片，具有处理信号的能力。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。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)、现场可编程门阵列(field programmable gate array,FPGA)或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。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。本申请实施例公开的方法的步骤可以直接体现为硬件编码处理器执行完成，或者用编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。
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,DRRAM)。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。
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。
本申请中术语“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。其中，A、B以及C均可以为单数或者复数，不作限定。
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、ROM、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以所述权利要求的保护范围为准。

Claims (28)

  1. 一种侧行链路资源配置的方法，其特征在于，包括：
    在第一时隙上接收第一侧行控制信息SCI，所述第一SCI包括第一指示信息，所述第一指示信息指示所述第一时隙是否存在空白符号，所述空白符号位于所述第一时隙的最后N个符号，N为自然数；
    根据所述第一指示信息确定所述第一时隙是否存在空白符号。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：如果所述第一指示信息指示所述第一时隙存在空白符号，根据所述第一指示信息和所述第一时隙的子载波间隔确定所述第一时隙中所述空白符号的个数N。
  3. 根据权利要求2所述的方法，其特征在于，
    所述第一时隙的子载波间隔为15kHz或30kHz，所述空白符号的个数N为1；或者
    所述第一时隙的子载波间隔为60kHz，所述空白符号的个数N为2。
  4. 一种侧行链路资源配置的方法，其特征在于，包括：
    确定第一指示信息，所述第一指示信息承载于第一侧行控制信息SCI，所述第一指示信息指示第一时隙是否存在空白符号，所述空白符号位于所述第一时隙的最后N个符号，N为自然数；
    在所述第一时隙上发送所述第一SCI。
  5. 根据权利要求4所述的方法，其特征在于，所述方法还包括：根据所述第一时隙的子载波间隔确定所述第一时隙中所述空白符号的个数N。
  6. 根据权利要求5所述的方法，其特征在于，
    所述第一时隙的子载波间隔为15kHz或30kHz，所述空白符号的个数N为1；或者
    所述第一时隙的子载波间隔为60kHz，所述空白符号的个数N为2。
  7. 一种侧行链路资源配置的方法，其特征在于，包括：
    接收第一侧行控制信息SCI，其中，所述第一SCI包括第一指示信息，所述第一指示信息指示第一时隙和/或第二时隙在多个时隙中的位置，所述第一时隙用于接收第一侧行链路信息，所述第二时隙用于发送第二侧行链路信息；
    根据所述第一时隙在所述多个时隙中的位置和第一周期确定第一反馈时隙，根据所述第二时隙在所述多个时隙中的位置和第二周期确定第二反馈时隙，所述第一周期为所述第一反馈时隙在所述第一时隙中的周期，所述第一反馈时隙包括第一物理侧行反馈信道PSFCH，所述第一PSFCH用于发送第一混合自动重传请求HARQ信息，所述第二周期为所述第二反馈时隙在所述第二时隙中的周期，所述第二反馈时隙包括第二PSFCH，所述第二PSFCH用于接收第二HARQ信息。
  8. 根据权利要求7所述的方法，其特征在于，所述第一周期或所述第二周期承载于所述第一SCI或高层信令。
  9. 一种侧行链路资源配置的方法，其特征在于，包括：
    发送第一侧行控制信息SCI，其中，所述第一SCI包括第一指示信息，所述第一指示信息指示第一时隙和/或第二时隙在多个时隙中的位置，所述第一时隙用于发送第一侧行 链路信息，所述第二时隙用于接收第二侧行链路信息；
    根据所述第一时隙在所述多个时隙中的位置和第一周期确定所述第一反馈时隙，根据所述第二时隙在所述多个时隙中的位置和第二周期确定所述第二反馈时隙，所述第一周期为所述第一反馈时隙在所述第一时隙中的周期，所述第一反馈时隙包括第一物理侧行反馈信道PSFCH，所述第一PSFCH用于接收第一混合自动重传请求HARQ信息，所述第二周期为所述第二反馈时隙在所述第二时隙中的周期，所述第二反馈时隙包括第二PSFCH，所述第二PSFCH用于发送第二HARQ信息。
  10. 根据权利要求9所述的方法，其特征在于，所述第一周期或所述第二周期承载于所述第一SCI或高层信令。
  11. 一种通信装置，其特征在于，包括：
    接收单元，用于在第一时隙上接收第一侧行控制信息SCI，所述第一SCI包括第一指示信息，所述第一指示信息指示所述第一时隙是否存在空白符号，所述空白符号位于所述第一时隙的最后N个符号，N为自然数；
    处理单元，用于根据所述第一指示信息确定所述第一时隙是否存在空白符号。
  12. 根据权利要求11所述的装置，其特征在于，如果所述第一指示信息指示所述第一时隙存在空白符号，所述处理单元，还用于根据所述第一指示信息和所述第一时隙的子载波间隔确定所述第一时隙中所述空白符号的个数N。
  13. 根据权利要求12所述的装置，其特征在于，
    所述第一时隙的子载波间隔为15kHz或30kHz，所述空白符号的个数N为1；或者
    所述第一时隙的子载波间隔为60kHz，所述空白符号的个数N为2。
  14. 一种通信装置，其特征在于，包括：
    处理单元，用于确定第一指示信息，所述第一指示信息承载于第一侧行控制信息SCI，所述第一指示信息指示第一时隙是否存在空白符号，所述空白符号位于所述第一时隙的最后N个符号，N为自然数；
    发送单元，用于在所述第一时隙上发送所述第一SCI。
  15. 根据权利要求14所述的装置，其特征在于，所述处理单元还用于：根据所述第一时隙的子载波间隔确定所述第一时隙中所述空白符号的个数N。
  16. 根据权利要求15所述的装置，其特征在于，
    所述第一时隙的子载波间隔为15kHz或30kHz，所述空白符号的个数N为1；或者
    所述第一时隙的子载波间隔为60kHz，所述空白符号的个数N为2。
  17. 一种通信装置，应用于第一终端设备，其特征在于，包括：
    接收单元，用于接收第一侧行控制信息SCI，其中，所述第一SCI包括第一指示信息，所述第一指示信息指示第一时隙和/或第二时隙在多个时隙中的位置，所述第一时隙用于所述第一终端设备接收所述第一侧行链路信息，所述第二时隙用于所述第一终端设备发送第二侧行链路信息；
    根据所述第一时隙在所述多个时隙中的位置和第一周期确定所述第一反馈时隙，根据所述第二时隙在所述多个时隙中的位置和第二周期确定所述第二反馈时隙，所述第一周期为所述第一反馈时隙在所述第一时隙中的周期，所述第一反馈时隙包括第一物理侧行反馈信道PSFCH，所述第一PSFCH用于发送第一混合自动重传请求HARQ信息，所述第二周 期为所述第二反馈时隙在所述第二时隙中的周期，所述第二反馈时隙包括第二物理侧行反馈信道PSFCH，所述第二PSFCH用于接收第二HARQ信息。
  18. 根据权利要求17所述的装置，其特征在于，所述第一周期或所述第二周期承载于所述第一SCI或高层信令。
  19. 一种通信装置，应用于第二终端设备，其特征在于，包括：
    发送单元，用于发送第一侧行控制信息SCI，其中，所述第一SCI包括第一指示信息，所述第一指示信息指示第一时隙和/或第二时隙在多个时隙中的位置，所述第一时隙用于发送第一侧行链路信息，所述第二时隙用于接收第二侧行链路信息；
    根据所述第一时隙在所述多个时隙中的位置和第一周期确定所述第一反馈时隙，根据所述第二时隙在所述多个时隙中的位置和第二周期确定所述第二反馈时隙，所述第一周期为所述第一反馈时隙在所述第一时隙中的周期，所述第一反馈时隙包括第一物理侧行反馈信道PSFCH，所述第一PSFCH用于接收第一混合自动重传请求HARQ信息，所述第二周期为所述第二反馈时隙在所述第二时隙中的周期，所述第二反馈时隙包括第二物理侧行反馈信道PSFCH，所述第二PSFCH用于发送第二HARQ信息。
  20. 根据权利要求19所述的装置，其特征在于，所述第一周期或所述第二周期承载于所述第一SCI或高层信令。
  21. 一种通信装置，其特征在于，包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合，所述至少一个处理器用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述通信装置执行如权利要求1至3中任一项所述的方法，或者，使得所述通信装置执行如权利要求7或8所述的方法。
  22. 一种通信装置，其特征在于，包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合，所述至少一个处理器用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述通信装置执行如权利要求4至6中任一项所述的方法，或者，使得所述通信装置执行如权利要求9或10所述的方法。
  23. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机指令，当所述计算机指令在计算机上运行时，如权利要求1至3中任一项所述的方法被执行，或者，如权利要求7或8所述的方法被执行。
  24. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机指令，当所述计算机指令在计算机上运行时，如权利要求4至6中任一项所述的方法被执行，或者，如权利要9或10所述的方法被执行。
  25. 一种计算机程序产品，其特征在于，所述计算机程序产品中包括计算机程序代码，当所述计算机程序代码在计算机上运行时，如权利要求1至3中任一项所述的方法被执行，或者，如权利要求7或8所述的方法被执行。
  26. 一种计算机程序产品，其特征在于，所述计算机程序产品中包括计算机程序代码，当所述计算机程序代码在计算机上运行时，如权利要求4至6中任一项所述的方法被执行，或者，如权利要求9或10所述的方法被执行。
  27. 一种通信系统，其特征在于，包括：
    如权利要求11至13中任一项所述的装置和如权利要求14至16任意一项所述的装置。
  28. 一种通信系统，其特征在于，包括：
    如权利要求17或18所述装置和如权利要求19或20所述的装置。
PCT/CN2021/085991 2021-04-08 2021-04-08 侧行链路资源配置的方法和通信装置 WO2022213328A1 (zh)

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