WO2020192244A1 - 一种通信方法和装置 - Google Patents

一种通信方法和装置 Download PDF

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Publication number
WO2020192244A1
WO2020192244A1 PCT/CN2020/071134 CN2020071134W WO2020192244A1 WO 2020192244 A1 WO2020192244 A1 WO 2020192244A1 CN 2020071134 W CN2020071134 W CN 2020071134W WO 2020192244 A1 WO2020192244 A1 WO 2020192244A1
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WIPO (PCT)
Prior art keywords
terminal
configuration information
bwp configuration
resource pool
carrier
Prior art date
Application number
PCT/CN2020/071134
Other languages
English (en)
French (fr)
Inventor
彭文杰
王君
戴明增
魏冬冬
Original Assignee
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.)
Filing date
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 EP23172690.2A priority Critical patent/EP4280763A3/en
Priority to EP20779464.5A priority patent/EP3937519B1/en
Publication of WO2020192244A1 publication Critical patent/WO2020192244A1/zh
Priority to US17/486,636 priority patent/US12035294B2/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
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method and device.
  • V2X Vehicle to Everything
  • V2X refers to the interconnection between the vehicle and the outside world through the devices configured on the vehicle and various communication technologies, such as the connection between the vehicle and the vehicle, the vehicle and the person, the vehicle and the roadside infrastructure, the vehicle and the network, etc. Interconnect communication.
  • SideLink (SL) technology has been introduced in the Internet of Vehicles.
  • NR New Radio
  • BWP bandwidth part
  • resource configuration on NR V2X SL is carried out in the form of resource pool (RP).
  • RP resource pool
  • the bandwidth of a carrier is very large, and it can even cover multiple frequency points, and different services have requirements for frequency points. Different, so multiple resource pools can be supported on one BWP.
  • the BWP configuration obtained by two terminal equipment (user equipment, UE) connected by unicast may not match, resulting in communication failure.
  • the BWP of UE1 includes resource pool #2, resource pool #3, and resource pool #4
  • the BWP of UE2 includes resource pool #1, resource pool #2, and resource pool #3.
  • the embodiments of the present application provide a communication method and device, which can ensure the reliability of unicast connection communication between terminals.
  • a communication method includes: a first terminal receives first side link SL carrier configuration information sent by a second terminal; the first side link is the first terminal and the second terminal The wireless communication link between the two terminals; the first SL carrier configuration information includes the first bandwidth part BWP configuration information, the first BWP configuration information includes one or more first resource pools; the first terminal is based on the first BWP The configuration information performs unicast connection communication with the second terminal.
  • the SL resource may be obtained for the unicast connection communication, the SL resource may be the BWP configuration information of the first terminal and Time-frequency resources overlapped in the BWP configuration information of the second terminal.
  • the sending resource pool for sending data by the first terminal is within the receiving resource pool for receiving data by the second terminal That is, the second terminal can receive the data sent by the first terminal, which ensures the reliability of the unicast connection and communication between the first terminal and the second terminal.
  • the multiple first resource pools are multiple resource pools with different time and frequencies included in the first BWP configuration information.
  • the first SL carrier is a carrier corresponding to the unicast connection described above.
  • the second terminal sends the carrier corresponding to the unicast connection to the first terminal, so that the first terminal can perform unicast connection communication based on the carrier corresponding to the unicast connection.
  • the first terminal performs unicast connection communication with the second terminal based on the first BWP configuration information, including: the first terminal according to The first BWP configuration information and the second BWP configuration information are used to obtain a target resource pool for the first terminal and the second terminal to perform the unicast connection communication; the second BWP configuration information belongs to the first SL carrier Configuration information, the second BWP configuration information includes one or more second resource pools; the first terminal performs the unicast connection communication with the second terminal based on the target resource pool.
  • the multiple second resource pools are multiple resource pools with different time and frequencies included in the second BWP configuration information.
  • the first terminal performs unicast connection communication with the second terminal based on the first BWP configuration information, including: the first terminal accesses wirelessly
  • the network device sends the foregoing first BWP configuration information and first indication information; the first indication information is used to indicate the foregoing unicast connection.
  • the first terminal sends the first BWP configuration information of the second terminal to the wireless access network device, and the first BWP configuration information may be used as a limitation of the wireless access network device scheduling resource or configuration resource.
  • the foregoing method further includes: the first terminal receives third BWP configuration information sent by the radio access network device, where the third BWP configuration information is The foregoing first BWP configuration information corresponds to the same SL carrier; the first terminal performs the foregoing unicast connection communication with the second terminal based on the third BWP configuration information.
  • the third BWP configuration information corresponds to the same SL carrier as the first BWP configuration information, when the first terminal communicates with the second terminal in a unicast connection based on the third BWP configuration information, the unicast connection can be ensured Reliability of communication.
  • the first resource pool is a target resource pool
  • the target resource pool is used for the first terminal and the second terminal to perform the unicast Connect communication.
  • the second terminal sends to the first terminal the resource pools in the first resource pool and the second resource pool with overlapping time-frequency domains, which can ensure that the first terminal can receive the data sent by the second terminal, and the second terminal can also Receiving the data sent by the first terminal ensures the reliability of the unicast connection and communication between the first terminal and the second terminal.
  • the foregoing method further includes: the first terminal sends second BWP configuration information to the second terminal. Based on this solution, the first terminal sends the second BWP configuration information to the second terminal, so that the second terminal can perform unicast connection communication based on the second BWP configuration information.
  • the foregoing method further includes: the foregoing first terminal sends the foregoing target resource pool and first indication information to the foregoing radio access network device, and the second An indication information is used to indicate the above unicast connection. Based on this solution, the radio access network device can schedule resources based on the unicast connection information sent by the first terminal and the target resource pool.
  • the foregoing method further includes: the foregoing first terminal sends the foregoing target resource pool to the foregoing second terminal.
  • the second terminal can perform the unicast connection communication with the first terminal based on the target resource pool.
  • the target resource pool may be the intersection of the receiving resource pool for receiving data by the first terminal and the sending resource pool for sending data by the second terminal, thereby ensuring that the sending resource pool for sending data by the second terminal belongs to the receiving resource pool of the first terminal.
  • the data receiving resource pool that is, the first terminal can receive the data sent by the second terminal, ensures the reliability of the unicast connection communication between the first terminal and the second terminal.
  • a communication method includes: a radio access network device receives first bandwidth part BWP configuration information and first indication information sent by a first terminal; the first BWP configuration information belongs to The first side link SL carrier configuration information, the first side link is the wireless communication link between the first terminal and the second terminal; the first BWP configuration information is the BWP configuration information of the second terminal, the first The BWP configuration information includes one or more first resource pools; the first indication information is used to indicate the unicast connection between the first terminal and the second terminal; the radio access network device schedules the target based on the first BWP configuration information SL resources, the target SL resources are time-frequency resources in the target resource pool; the target resource pool is used by the first terminal and the second terminal to perform the unicast connection communication.
  • the radio access network device since the radio access network device considers the first BWP configuration of the second terminal when scheduling resources, the resource for sending data by the first terminal can be limited to the time-frequency domain of the scheduling resource, thereby ensuring the first BWP configuration.
  • the second terminal can receive the data sent by the first terminal.
  • the above method further includes: the above radio access network device obtains second BWP configuration information based on the first BWP configuration information; the second BWP configuration information and the first BWP configuration The information corresponds to the same SL carrier; the wireless access network device sends the second BWP configuration information to the first terminal.
  • the radio access network device takes into account the first BWP configuration of the second terminal when configuring the second BWP for the first terminal, the sending resource pool in the second BWP can be limited to the receiving resources of the first BWP Within the time-frequency domain of the pool, so as to ensure that the second terminal can receive the data sent by the first terminal.
  • the foregoing first resource pool is the target resource pool. Based on this solution, when the radio access network device schedules resources, the scheduling resources can be limited to the time-frequency domain range of the target resource pool, thereby ensuring the reliability of the communication between the first terminal and the second terminal of the unicast connection.
  • a communication device in a third aspect of the embodiments of the present application, includes: a processing module and a transceiver module; the transceiver module is configured to receive first-side link SL carrier configuration information sent by a second terminal; The first side link is the wireless communication link between the communication device and the second terminal; the first SL carrier configuration information includes the first bandwidth part BWP configuration information, and the first BWP configuration information includes one Or multiple first resource pools; the processing module is configured to perform unicast connection communication with the second terminal based on the first BWP configuration information through the transceiver module.
  • the foregoing first SL carrier is a carrier corresponding to the unicast connection.
  • the foregoing processing module is specifically configured to: obtain a target resource pool according to the first BWP configuration information and the second BWP configuration information, and the target resource pool Used for the communication device and the second terminal to perform the unicast connection communication; the second BWP configuration information belongs to the first SL carrier configuration information, and the second BWP configuration information includes one or more second resource pools; through the transceiver module Perform the unicast connection communication with the second terminal based on the target resource pool.
  • the foregoing transceiver module is further configured to send the foregoing first BWP configuration information and first indication information to a radio access network device; the first The indication information is used to indicate the above unicast connection.
  • the foregoing transceiver module is further configured to receive third BWP configuration information sent by the foregoing radio access network device, where the third BWP configuration information and The foregoing first BWP configuration information corresponds to the same SL carrier; the foregoing processing module is specifically configured to perform the unicast connection communication with the second terminal based on the third BWP configuration information through the transceiver module.
  • the first resource pool is a target resource pool
  • the target resource pool is used for the communication device and the second terminal to perform the unicast connection Communication.
  • the foregoing transceiver module is further configured to send second BWP configuration information to the foregoing second terminal.
  • the foregoing transceiver module is further configured to send the foregoing target resource pool and first indication information to the foregoing radio access network device, and the first indication The information is used to indicate the unicast connection described above.
  • the foregoing transceiver module is further configured to send the foregoing target resource pool to the foregoing second terminal.
  • a communication device in a fourth aspect of the embodiments of the present application, includes: a transceiver module and a processing module;
  • the transceiver module is configured to receive the first bandwidth part BWP configuration information and first indication information sent by the first terminal; the first BWP configuration information belongs to the first side link SL carrier configuration information, and the first side link is the first side link.
  • the processing module is specifically configured to obtain second BWP configuration information based on the above-mentioned first BWP configuration information; the second BWP configuration information corresponds to the same first BWP configuration information SL carrier; the above transceiver module is also used to send the second BWP configuration information to the first terminal.
  • the foregoing first resource pool is the foregoing target resource pool.
  • a communication method includes: a first terminal receives one or more side link SL carrier configuration information sent by a radio access network device, where the SL carrier configuration information includes a bandwidth part BWP configuration information, the BWP configuration information includes one or more resource pools; one resource pool includes one or more subchannels; the first terminal receives the downlink control information DCI sent by the radio access network device, and the DCI includes first indication information ,
  • the first indication information is used to indicate the time-frequency resource on the first SL carrier of the one or more SL carriers, the first SL carrier is the SL carrier scheduled by the radio access network device; the first terminal according to the first indication information To send data to the second terminal on the time-frequency resource.
  • the specific time-frequency resource location indicated by the radio access network device can be determined according to the DCI.
  • the first indication information includes second indication information and third indication information
  • the second indication information is used to indicate the first SL carrier
  • the third indication information includes wireless access.
  • the subchannels configured by the first terminal are independently numbered in the resource pool; the foregoing first indication information further includes fourth indication information, and the fourth indication The information is used to indicate the resource pool scheduled by the radio access network device. Based on this solution, when the sub-channels are independently numbered in the resource pool, the location of specific time-frequency domain resources scheduled by the radio access network device can be determined according to the first indication information.
  • the foregoing method further includes: the first terminal performs subchannels of one or more resource pools in the foregoing BWP configuration information from low frequency to high frequency. Frequency uniform number. Based on this solution, by uniformly numbering the sub-channels of one or more resource pools in a BWP from low frequency to high frequency, the location of specific time-frequency domain resources scheduled by radio access network equipment can be determined.
  • the foregoing time-frequency resources include time-frequency resources of one or more resource pools in the BWP configuration information.
  • the time-frequency resources scheduled by the radio access network device may involve time-frequency resources in multiple resource pools.
  • a sixth aspect of the embodiments of the present application provides a communication device, which includes a transceiver module and a processing module.
  • the transceiver module is used to receive one or more side link SL carrier configuration information sent by the wireless access network device.
  • the SL carrier configuration information includes bandwidth part BWP configuration information, and the BWP configuration information includes one or more resource pools; one resource pool Includes one or more sub-channels;
  • the transceiver module is also used to receive downlink control information DCI sent by a radio access network device, the DCI includes first indication information, and the first indication information is used to indicate the first indication of one or more SL carriers A time-frequency resource on an SL carrier, the first SL carrier is the SL carrier scheduled by the wireless access network device;
  • the processing module is used to send data to the second terminal on the above-mentioned time-frequency resource through the transceiver module according to the first indication information .
  • the first indication information includes second indication information and third indication information
  • the second indication information is used to indicate the first SL carrier
  • the third indication information includes the wireless The minimum index of the sub-channel scheduled by the access network device.
  • the sub-channels to which the communication device is configured are independently numbered in the resource pool; the first indication information further includes fourth indication information, and the fourth indication The information is used to indicate the resource pool scheduled by the radio access network device.
  • the foregoing processing module is further configured to perform processing on the sub-channels of one or more resource pools in the BWP configuration information, from low frequency to high Frequency uniform number.
  • the time-frequency resources include time-frequency resources of one or more resource pools in the foregoing BWP configuration information.
  • a seventh aspect of the embodiments of the present application provides a communication method, the method includes: a terminal receives first information sent by a wireless access network device, the first information includes one or more first SL carrier configuration information; a first SL The carrier configuration information includes the first bandwidth part BWP configuration information, the first BWP configuration information includes one or more first resource pools; the terminal selects the second SL carrier configuration information from the one or more first SL carrier configuration information;
  • the second SL carrier is a carrier in the one or more first SL carriers, the second SL carrier configuration information includes second BWP configuration information, and the second BWP configuration information includes one or more second resource pools.
  • the first information further includes a channel busy rate CBR threshold
  • the second resource pool is that the CBR measurement value in the first resource pool is greater than or equal to the CBR threshold The value of the resource pool. Based on this solution, the resource pool can be selected according to the channel busy rate.
  • the first information further includes the service priority corresponding to the foregoing first SL carrier, and the second SL carrier is the first SL carrier
  • the SL carrier corresponding to the service whose priority is higher than the preset threshold.
  • the resource pool can be selected according to the service priority, so that when the terminal's capability is not sufficient to cover the resource pools corresponding to all frequency points of interest, the frequency point corresponding to the service with the higher service priority is preferentially selected.
  • the foregoing first information is carried in a broadcast message. Based on this solution, you can choose among the BWP configurations broadcast by the wireless access network equipment.
  • a communication device in an eighth aspect of the embodiments of the present application, includes a transceiver module and a processing module; the transceiver module is configured to receive first information sent by a wireless access network device, where the first information includes one or Multiple first SL carrier configuration information; the first SL carrier configuration information includes the first bandwidth part BWP configuration information, the first BWP configuration information includes one or more first resource pools; the processing module is configured to obtain information from the foregoing Among the one or more first SL carrier configuration information, the second SL carrier configuration information is selected; the second SL carrier is the carrier in the one or more first SL carriers, and the second SL carrier configuration information includes the second SL carrier BWP configuration information, the second BWP configuration information includes one or more second resource pools.
  • the first information further includes a channel busy rate CBR threshold
  • the second resource pool is that the CBR measurement value in the first resource pool is greater than or equal to the CBR threshold The value of the resource pool.
  • the first information further includes the service priority corresponding to the foregoing first SL carrier
  • the second SL carrier is one of the foregoing first SL carriers The SL carrier corresponding to the service whose service priority is higher than the preset threshold.
  • the foregoing first information is carried in a broadcast message.
  • the description of the effects of the foregoing eighth aspect and various implementation manners of the eighth aspect may refer to the descriptions of the corresponding effects of the seventh aspect and various implementation manners of the seventh aspect, and details are not repeated here.
  • a ninth aspect of the embodiments of the present application provides a computer storage medium having computer program code in the computer storage medium, and when the computer program code runs on a processor, the processor executes any of the above aspects.
  • the tenth aspect of the embodiments of the present application provides a computer program product that stores computer software instructions executed by the above-mentioned processor, and the computer software instructions include a program for executing the solution described in the above-mentioned aspect.
  • An eleventh aspect of the embodiments of the present application provides a communication device, which includes a transceiver, a processor, and a memory.
  • the transceiver is used to send and receive information or to communicate with other network elements;
  • the memory is used to store Computer-executable instructions;
  • a processor for executing computer-executable instructions to implement the communication method described in the first, fifth, or seventh aspect.
  • the twelfth aspect of the embodiments of the present application provides a communication device, which includes a transceiver, a processor, and a memory.
  • the transceiver is used for sending and receiving information or communicating with other network elements;
  • the memory is used for storing Computer-executable instructions;
  • a processor for executing the computer-executable instructions to implement the communication method described in the second aspect.
  • the thirteenth aspect of the embodiments of the present application provides a communication device, which exists in the form of a chip product.
  • the structure of the device includes a processor and may also include a memory.
  • the memory is used for coupling with the processor and storing The necessary program instructions and data of the device, the processor is used to execute the program instructions stored in the memory, so that the device executes the functions of the device in the above method.
  • Figure 1 is a schematic diagram of a resource pool configuration between terminals provided in the prior art
  • FIG. 2 is a schematic diagram of a V2X communication scenario provided by an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 5 is a schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 6 is a schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 7 is a schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 8 is a schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 9 is a schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 10 is a schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 11 is a schematic diagram of a resource pool configuration provided by an embodiment of the application.
  • FIG. 12 is a schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 13 is a schematic diagram of the composition of a terminal provided by an embodiment of this application.
  • FIG. 14 is a schematic diagram of the composition of a radio access network device provided by an embodiment of this application.
  • 15 is a schematic diagram of the composition of another terminal provided by an embodiment of the application.
  • FIG. 16 is a schematic diagram of the composition of another radio access network device provided by an embodiment of this application.
  • a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.
  • words such as “first” and “second” are used to distinguish the same items or similar items that have substantially the same function and effect. Those skilled in the art can understand that words such as “first” and “second” do not limit the number and execution order. For example, the "first" in the first terminal and the "second” in the second terminal in the embodiment of the present application are only used to distinguish different terminals.
  • the embodiment of the present application provides a communication method, which is applied in the V2X communication scenario shown in FIG. 2.
  • the first terminal and the second terminal communicate via side links (Sidelink, SL).
  • the side link refers to the auxiliary link in the V2X network.
  • the V2X network also There are uplink (uplink) and downlink (downlink).
  • V2X communication includes vehicle-to-vehicle communication (Vehicle-to-Vehicle, V2V), vehicle-to-infrastructure communication (Vehicle-to-Infrastructure, V2I), vehicle-to-people communication (Vehicle to People, V2P), And the communication between the vehicle and the application server (Vehicle-to-Network, V2N), etc.
  • FIG. 2 only takes V2V communication in which both the first terminal and the second terminal are cars as an example for illustration, and the embodiment of the present application does not limit the specific communication scenario of V2X.
  • the terminal in the V2X network, there are two ways for the terminal to obtain V2X SL resources.
  • One is the radio access network equipment scheduling method.
  • the terminal needs to enter the radio resource control (Radio Resource Control, RRC) connection
  • RRC Radio Resource Control
  • a terminal that supports the V2X function can request the wireless access network device for the resources used to send data, and the wireless access network device allocates V2X SL resources as needed.
  • This resource acquisition mode is called Mode 3 (Mode 3) in Long Term Evolution (LTE) V2X, and Mode 1 (Mode 1) in NR V2X.
  • the wireless access network device can configure the resource pool used by the terminal, and the wireless access network device can report the Sidelink buffer status report (Buffer status report, BSR) reported by the terminal.
  • the physical downlink control channel PDCCH Physical Downlink Control Channel, PDCCH
  • PDCCH Physical Downlink Control Channel
  • DCI Downlink Control Information
  • the PC5 port is the communication interface between terminals.
  • the wireless access network device may be a base station or a device in a network that provides wireless access.
  • the other is a way for the terminal to independently select resources.
  • the terminal can select resources to transmit data from the V2X SL resources pre-configured by radio access network equipment broadcast or control function (CF) or RRC configuration.
  • This resource acquisition mode is called Mode4 (Mode 4) in LTE V2X, and Mode 2 (Mode 2) in NR V2X.
  • the manner in which the terminal obtains the V2X SL resource is not limited in the embodiments of this application, that is, the terminal can obtain the V2X SL resource transmission data in any of the above modes 1 to 4.
  • the resource configuration of the terminal in NR V2X SL may include one or more SL carriers, one SL carrier may include one or more bandwidth parts (BWP), and one BWP may include one or more resource pools
  • a resource pool may include one or more sub-channels, and the number of sub-channels in different resource pools in a BWP may be the same or different, which is not limited in this embodiment of the application.
  • the first terminal and the second terminal can perform unicast connection communication.
  • the sending resource pool when the first terminal sends data needs to belong to the receiving resource pool when the second terminal receives data to ensure that the second terminal can The data sent by the first terminal is received.
  • FIG 3 is a terminal device provided by an embodiment of the application.
  • the terminal device can be a vehicle; it can also be a vehicle-mounted communication device or a vehicle-mounted terminal installed on a vehicle to assist the vehicle driving, or a vehicle-mounted communication device or a vehicle-mounted terminal chip.
  • the vehicle-mounted terminal may be a device used to implement wireless communication functions, such as a terminal or a chip that can be used in the terminal.
  • the terminal can be a user equipment UE, an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a terminal agent, or a terminal agent in the 5G network or the future evolution of the PLMN.
  • the access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices or wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control (industrial) Wireless terminal in control), wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety (transportation safety) Terminal, wireless terminal in smart city, wireless terminal in smart home, etc.
  • the vehicle-mounted terminal can be mobile or fixed.
  • the terminal device 300 includes at least one processor 301, a memory 302, a transceiver 303, and a communication bus 304.
  • the processor 301 is the control center of the terminal device, and may be a processor or a collective name for multiple processing elements.
  • the processor 301 is a central processing unit (CPU), or a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • microprocessors digital signal processor, DSP
  • field programmable gate arrays Field Programmable Gate Array, FPGA
  • the processor 301 can execute various functions of the terminal device by running or executing a software program stored in the memory 302 and calling data stored in the memory 302.
  • the processor 301 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 3.
  • the terminal device may include multiple processors, such as the processor 301 and the processor 305 shown in FIG. 3. Each of these processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU).
  • the processor here may refer to one or more terminal devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • the memory 302 can be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other optical disc storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory 302 may exist independently and is connected to the processor 301 through the communication bus 304.
  • the memory 302 may also be integrated with the processor 301.
  • the memory 302 is used to store a software program for executing the solution of the present invention, and the processor 301 controls the execution.
  • the transceiver 303 is used to communicate with other communication devices.
  • the transceiver 303 can also be used to communicate with communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (Wireless Local Area Networks, WLAN), and so on.
  • the transceiver 303 may include a receiving unit to implement a receiving function, and a sending unit to implement a sending function.
  • the communication bus 304 may be an industry standard architecture (ISA) bus, an external communication device interconnection (Peripheral Component, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus.
  • ISA industry standard architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used in FIG. 3 to represent, but it does not mean that there is only one bus or one type of bus.
  • the structure of the terminal device shown in FIG. 3 does not constitute a limitation on the terminal device, and may include more or fewer components than shown in the figure, or a combination of certain components, or different component arrangements.
  • an embodiment of the present application provides a communication method that can be used when a BWP includes multiple resource pools, Ensure the reliability of communication between terminals.
  • a communication method provided by an embodiment of this application As shown in FIG. 4, a communication method provided by an embodiment of this application.
  • the second terminal has obtained BWP configuration information.
  • the communication method includes steps S401-S402.
  • the second terminal sends the first side link SL carrier configuration information to the first terminal.
  • the second terminal may send the first BWP configuration information through the PC5 port or the Uu port.
  • the first side link is a wireless communication link between the first terminal and the second terminal.
  • the first SL carrier configuration information includes first BWP configuration information, and the first BWP configuration information includes one or more first resource pools. It should be noted that the multiple first resource pools are multiple resource pools with different time and frequencies included in the first BWP configuration information.
  • the second terminal may send the first SL carrier configuration information to the first terminal through the unicast connection.
  • the first SL carrier configuration information may be sent to the first terminal through a signaling radio bearer (Signal Radio Bearer, SRB) corresponding to the unicast connection.
  • SRB Signaling Radio Bearer
  • the first BWP configuration information may be BWP configuration information obtained by the second terminal.
  • the first BWP configuration information may be BWP configuration information configured by the first wireless access network device for the second terminal, or may be BWP configuration information obtained by the second terminal in the broadcast of the first wireless access network device, or
  • the BWP configuration information acquired by the second terminal in a pre-configuration manner is not limited in this embodiment of the present application.
  • the above-mentioned first SL carrier configuration information is configuration information of a carrier corresponding to the unicast connection between the first terminal and the second terminal.
  • the second terminal may send configuration information of the carrier corresponding to the frequency of the unicast connection between the second terminal and the first terminal to the first terminal.
  • the frequency point can also be called frequency or carrier, and the English is frequency.
  • the first terminal performs unicast connection communication with the second terminal based on the first BWP configuration information.
  • the first terminal performs unicast connection communication with the second terminal based on the first BWP configuration information, which may include: the first terminal obtains the SL resource and performs the above based on the first BWP configuration information and the second BWP configuration information.
  • Unicast connection communication The second BWP configuration information belongs to the first SL carrier configuration information, and the second BWP configuration information includes one or more second resource pools. It should be noted that the multiple second resource pools are multiple resource pools with different time and frequencies included in the second BWP configuration information.
  • the foregoing second BWP configuration information may be BWP configuration information obtained by the first terminal.
  • the second BWP configuration information may be BWP configuration information configured by the second wireless access network device for the first terminal, or may be obtained by the first terminal from a resource broadcast or pre-configured by the second wireless access network device.
  • the BWP configuration information is not limited in this embodiment of the application. It should be noted that the second wireless access network device connected by the first terminal and the first wireless access network device connected by the second terminal may be the same wireless access network device or different wireless access network devices. The embodiment of the present application does not limit this.
  • the SL resource when the first terminal obtains the SL resource to perform the unicast connection communication according to the first BWP configuration information and the second BWP configuration information, the SL resource may be overlapped in the first BWP configuration information and the second BWP configuration information Time-frequency resources.
  • the SL resource may be the sending resource pool in the second BWP configuration information and the receiving resource pool in the first BWP configuration information, a resource overlapping in the time-frequency domain, and used as the SL resource for unicast connection communication; And/or, the SL resource may be a resource of the sending resource pool in the first BWP configuration information and the receiving resource pool in the second BWP configuration information, and the resource overlapped in the time-frequency domain, and used as the SL resource for unicast connection communication.
  • the sending resource pool for sending data by the first terminal belongs to the receiving resource pool for receiving data by the second terminal, and/or the sending resource for sending data by the second terminal
  • the pool belongs to the receiving resource pool where the first terminal receives data. Therefore, the reliability of the communication between the first terminal and the second terminal of the unicast connection can be ensured.
  • the first terminal performing unicast connection communication with the second terminal based on the first BWP configuration information may include: the first terminal obtains the target resource pool according to the first BWP configuration information and the second BWP configuration information, and The target resource pool is used by the first terminal and the second terminal to perform the unicast connection communication. The first terminal performs the unicast connection communication with the second terminal based on the target resource pool.
  • the above-mentioned SL resource is the SL resource in the target resource pool.
  • the first terminal may determine, according to the first BWP configuration information and the second BWP configuration information, a resource pool with the same time-frequency domain in the first resource pool and the second resource pool as the target resource pool. That is, the target resource pool belongs to both the first BWP configuration information and the second BWP configuration information; or it can be understood that the target resource pool belongs to both the resource pool in the first resource pool and the resources in the second resource pool. Pool.
  • the target resource pool can be understood as the intersection of the first BWP configuration information and the second BWP configuration information; or, it can be understood as the intersection of the first resource pool and the second resource pool.
  • the first resource pool may be a sending resource pool and the second resource pool may be a receiving resource pool, or the first resource pool may be a receiving resource pool and the second resource pool may be a sending resource pool.
  • the target resource pool may be one or more resource pools in a BWP, which is not limited in the embodiment of the present application.
  • the first terminal may, according to the first BWP configuration information and the second BWP configuration information, combine the resources with overlapping time-frequency domain positions in the receiving resource pool in the first BWP configuration information and the sending resource pool in the second BWP configuration information, or The resource pool with overlapping time-frequency domain positions is determined as the target resource pool; and/or, the resources with overlapping time-frequency domain positions in the sending resource pool in the first BWP configuration information and the receiving resource pool in the second BWP configuration information are determined, or A resource pool with overlapping positions in the time-frequency domain is determined as the target resource pool.
  • the sending resource pool for sending data by the first terminal belongs to the receiving resource pool for receiving data by the second terminal
  • the sending resource pool for sending data by the second terminal belongs to the receiving resource pool for receiving data by the first terminal.
  • this embodiment may be applicable to a scenario where the first terminal processes an idle state or a connected state.
  • the first terminal can use mode 1 or mode 2 to obtain resources. If the first terminal adopts mode 1, the first terminal may perform scheduling according to the first BWP configuration information sent by the second terminal and the second BWP configuration information obtained by the first terminal. If the first terminal adopts mode 2, the first terminal can select resources by itself according to the first BWP configuration information sent by the second terminal and the second BWP configuration information obtained by the first terminal.
  • the first terminal adopts mode 1 it may further include steps S403-S404 after the above steps S401-S402.
  • S403 The first terminal sends the target resource pool and the first indication information to the second radio access network device.
  • the first indication information is used to indicate a unicast connection between the first terminal and the second terminal.
  • the first indication information may be the Destination ID of the unicast connection, and optionally, may also include the Source ID of the unicast connection.
  • the destination identifier is the identifier allocated by the second terminal for the unicast connection received by the first terminal from the second terminal, and the source identifier is the identifier allocated by the first terminal for the unicast connection.
  • the first terminal sends the target resource pool and the first indication information to the second radio access network device, so that the second radio access network device becomes a unicast connection between the first terminal and the second terminal.
  • the target resource pool can be used as a restriction for the scheduling of the second radio access network device.
  • the second radio access network device schedules the target SL resource based on the target resource pool.
  • the target SL resource is a time-frequency resource in the target resource pool.
  • the radio access network device may perform scheduling based on the target resource pool during scheduling.
  • the radio access network device The scheduled resources need to be limited to the time-frequency domain range of the target resource pool, so that when the first terminal and the second terminal perform unicast connection communication, it can be ensured that the sending resource pool for the first terminal to send data belongs to the second terminal receiving data.
  • the receiving resource pool therefore, can ensure the reliability of the communication between the first terminal and the second terminal of the unicast connection.
  • the above method may further include step S405.
  • S405 The first terminal sends the target resource pool to the second terminal.
  • the first terminal may send the target resource pool to the second terminal, so that the second terminal performs the aforementioned unicast connection communication with the first terminal based on the target resource pool.
  • the target resource pool is the intersection of the receiving resource pool for receiving data by the first terminal and the sending resource pool for sending data by the second terminal. Therefore, the second terminal performs the aforementioned unicast connection with the first terminal based on the target resource pool. Communication can ensure that the sending resource pool for the second terminal to send data belongs to the receiving resource pool for the first terminal to receive data, that is, the first terminal can receive the data sent by the second terminal, ensuring that the first terminal and the second terminal are single Reliability of broadcast connection communication.
  • the target resource pool may also be the intersection of the sending resource pool for sending data by the first terminal and the receiving resource pool for receiving data by the second terminal. Therefore, the sending resource pool for sending data by the first terminal belongs to the receiving resource pool of the second terminal.
  • the data receiving resource pool that is, the second terminal can also receive the data sent by the first terminal, which ensures the reliability of the unicast connection and communication between the first terminal and the second terminal.
  • the communication method provided by the embodiment of the present application sends the first side link SL carrier configuration information to the first terminal through the second terminal; the first terminal performs unicast connection communication with the second terminal based on the first BWP configuration information; the first terminal Send the target resource pool and the first indication information to the second radio access network device; the radio access network device selects the target SL resource for scheduling based on the target resource pool.
  • the sending resource pool for sending data by the first terminal belongs to the receiving resource pool for receiving data by the second terminal
  • the sending resource pool for sending data by the second terminal belongs to the receiving resource pool for receiving data by the first terminal, so the reliability of the unicast connection communication between the first terminal and the second terminal is ensured.
  • the communication method includes steps S701-S703.
  • the second terminal sends first SL carrier configuration information to the first terminal.
  • step S701 the specific implementation manner in which the second terminal sends the first SL carrier configuration information to the first terminal in step S701 is the same as the implementation manner in which the second terminal sends the first side link SL carrier configuration information to the first terminal in step S401
  • step S401 the description in step S401 for details, which will not be repeated here.
  • the first terminal sends the first BWP configuration information and the first indication information to the second radio access network device.
  • the first indication information is used to indicate a unicast connection between the first terminal and the second terminal.
  • the second radio access network device schedules the target SL resource based on the first BWP configuration information.
  • step S703 may include: the second radio access network device schedules the target SL resource according to the first BWP configuration information and the second BWP configuration information.
  • the second radio access network device may take the intersection of the first BWP configuration information and the second BWP configuration information, and select the target SL resource from the resources of the intersection. That is, the target SL resource belongs to both the resource in the first BWP configuration information and the resource in the second BWP configuration information.
  • the second radio access network device determines the target SL resource from the sending resource pool in the second BWP configuration information of the first terminal, it needs to consider the receiving resource pool range in the first BWP configuration information, that is, Ensure that the target SL resource scheduled by the second radio access network device for the first terminal can be received by the second terminal.
  • the second radio access network device may obtain a target resource pool according to the first BWP configuration information and the second BWP configuration information, and select the target SL resource in the target resource pool. That is, the target SL resource may be a time-frequency resource in the target resource pool.
  • the target resource pool is used for unicast connection communication between the first terminal and the second terminal.
  • the sending resources in the target resource pool may be used by the first terminal to send the data and/or signaling of the unicast connection to the second terminal.
  • the received resources in the target resource pool may be used by the first terminal to receive the data and/or signaling of the unicast connection sent by the second terminal.
  • the specific method for obtaining the target resource pool reference may be made to the description in step S402, which will not be repeated here.
  • the first terminal performs unicast connection communication with the second terminal on the target SL resource.
  • the resource pool for sending data must belong to the resource pool for receiving data by the second terminal. Therefore, the reliability of the unicast connection and communication between the first terminal and the second terminal is ensured.
  • the first side link SL carrier configuration information is sent to the first terminal through the second terminal; the first terminal sends the first BWP configuration information and the first indication information to the second wireless access network device ; The second radio access network device selects the target SL resource for scheduling based on the first BWP configuration information.
  • the SL resources scheduled by the second radio access network device belong to both the resources in the first BWP configuration information and the resources in the second BWP configuration information. Therefore, it is possible to ensure that there is a single connection between the first terminal and the second terminal. Reliability of broadcast connection communication.
  • the second radio access network device sends third BWP configuration information to the first terminal.
  • the third BWP configuration information corresponds to the same SL carrier as the foregoing first BWP configuration information.
  • the third BWP configuration information is configured by the second radio access network device for the first terminal after considering the first BWP configuration information of the second terminal. That is, the third BWP configuration information belongs to the first SL carrier configuration information.
  • the second radio access network device since the second radio access network device receives the first BWP configuration information of the second terminal, the second radio access network device may be based on the first BWP configuration information of the second terminal, or may be based on The first BWP configuration information of the second terminal and the third BWP configuration information of the first terminal schedule the target SL resource, and the target SL resource is within the time-frequency domain range of the target resource pool. Therefore, when the first terminal and the second terminal perform unicast connection communication, it can be ensured that the target resource pool for sending data by the first terminal belongs to the receiving resource pool for receiving data by the second terminal. Therefore, the first terminal and the The reliability of communication between the second terminal.
  • the first terminal performs unicast connection communication with the second terminal based on the third BWP configuration information.
  • the first terminal performs unicast connection communication with the second terminal based on the third BWP configuration information, including: the first terminal obtains SL resources to perform the unicast connection communication according to the first BWP configuration information and the third BWP configuration information .
  • the third BWP configuration information includes one or more third resource pools.
  • the SL resource when the first terminal obtains the SL resource to perform the unicast connection communication according to the first BWP configuration information and the third BWP configuration information, the SL resource may be overlapped in the first BWP configuration information and the third BWP configuration information Time-frequency resources.
  • the SL resource may be the sending resource pool in the third BWP configuration information and the receiving resource pool in the first BWP configuration information, and the resource overlapped in the time-frequency domain, and used as the SL resource for unicast connection communication; And/or, the SL resource may be a resource that overlaps the location of the sending resource pool in the first BWP configuration information and the receiving resource pool in the third BWP configuration information in the time-frequency domain as the SL resource for unicast connection communication.
  • the sending resource pool for sending data by the first terminal belongs to the receiving resource pool for receiving data by the second terminal, and/or the sending resource pool for sending data by the second terminal It belongs to the receiving resource pool where the first terminal receives data, and therefore, the reliability of the communication between the first terminal and the second terminal connected by unicast connection can be ensured.
  • the foregoing first terminal performs unicast connection communication with the second terminal based on the third BWP configuration information: the first terminal obtains a target resource pool according to the first BWP configuration information and the third BWP configuration information, and the target resource pool Used for the first terminal and the second terminal to perform the unicast connection communication.
  • the first terminal performs the unicast connection communication with the second terminal based on the target resource pool.
  • the above-mentioned SL resource is the SL resource in the target resource pool.
  • the first terminal may determine, according to the first BWP configuration information and the third BWP configuration information, resource pools that are the same in the time and frequency domains in one or more first resource pools and one or more third resource pools Is the target resource pool. That is, the target resource pool belongs to both the resource pool in the first resource pool and the resource pool in the third resource pool.
  • the target resource pool can be understood as the intersection of the first resource pool and the third resource pool. Therefore, the sending resource pool for sending data by the first terminal belongs to the receiving resource pool for receiving data by the second terminal.
  • the first resource pool may be a sending resource pool and the second resource pool may be a receiving resource pool, or the first resource pool may be a receiving resource pool, and the second resource pool may be a sending resource pool.
  • the target resource pool may be one or more resource pools in a BWP, which is not limited in the embodiment of the present application.
  • the first terminal may determine, according to the first BWP configuration information and the third BWP configuration information, the resource pools with the same time-frequency domain in the receiving resource pool in the first BWP configuration information and the sending resource pool in the third BWP configuration information as Target resource pool; and/or, determining a resource pool with the same time-frequency domain in the sending resource pool in the first BWP configuration information and the receiving resource pool in the third BWP configuration information as the target resource pool.
  • the sending resource pool for sending data by the first terminal belongs to the receiving resource pool for receiving data by the second terminal, and/or the sending resource pool for sending data by the second terminal belongs to the receiving resource pool for receiving data by the first terminal.
  • this embodiment may be applicable to a scenario where the first terminal processes the connected state.
  • the first terminal can use mode 1 or mode 2 to obtain resources. If the first terminal adopts mode 1, the first terminal may perform scheduling according to the first BWP configuration information sent by the second terminal and the third BWP configuration information received by the first terminal. If the first terminal adopts mode 2, the first terminal can select resources by itself according to the first BWP configuration information sent by the second terminal and the third BWP configuration information received by the first terminal.
  • the first SL carrier configuration information is sent to the first terminal through the second terminal; the first terminal sends the first BWP configuration information and the first indication information to the second wireless access network device; second The wireless access network device sends the third BWP configuration information to the first terminal; the first terminal performs unicast connection communication with the second terminal based on the third BWP configuration information.
  • the second radio access network device sends the first BWP configuration information corresponding to the third BWP configuration information of the same SL carrier to the first terminal, so as to perform unicast connection communication with the second terminal based on the third BWP configuration information.
  • the sending resource pool for sending data by the first terminal may belong to the receiving resource pool for receiving data by the second terminal, and/or the sending resource pool for sending data by the second terminal belongs to the receiving resource pool for receiving data by the first terminal. Ensure the reliability of the unicast connection communication between the first terminal and the second terminal.
  • the communication method includes steps S901-S904.
  • S901 The first terminal sends second BWP configuration information to the second terminal.
  • the second BWP configuration information belongs to the first side link SL carrier configuration information, and the first side link is a wireless communication link between the first terminal and the second terminal.
  • the second BWP configuration information includes one or more second resource pools.
  • the second BWP configuration information may be BWP configuration information configured by the second wireless access network device for the first terminal, or may be the first terminal in the resources broadcast or pre-configured by the second wireless access network device.
  • the obtained BWP configuration information is not limited in this embodiment of the application.
  • S902 The second terminal sends fourth BWP configuration information to the first terminal.
  • the fourth BWP configuration information and the second BWP configuration information correspond to the same SL carrier.
  • the fourth BWP configuration information belongs to the first SL carrier configuration information.
  • the fourth BWP configuration information includes one or more target resource pools, and the target resource pools are used for unicast connection communication between the first terminal and the second terminal.
  • the second terminal can determine the target resource pool based on the second BWP configuration information sent by the first terminal and the first BWP configuration information acquired by itself, and send the target resource pool to the first terminal.
  • the fourth BWP configuration information The specific manner for the second terminal to determine the target resource pool is the same as the manner for the first terminal to determine the target resource pool in step S402. For details, reference may be made to the description of step S402, which will not be repeated here.
  • the second terminal may send the fourth BWP configuration information including the target resource pool determined by the second terminal to the first terminal.
  • the first terminal sends the target resource pool and the first indication information to the second radio access network device.
  • step S903 and step S403 the specific implementation manner of the first terminal sending the target resource pool and the first indication information to the second radio access network device in step S903 and step S403 is the same.
  • step S403 please refer to the description in step S403, which will not be repeated here. .
  • the second radio access network device schedules the target SL resource based on the target resource pool.
  • step S904 the specific implementation manner of scheduling the target SL resource by the second radio access network device based on the target resource pool in step S904 and step S404 is the same.
  • step S404 the description in step S404, which will not be repeated here.
  • the fourth BWP configuration information sent by the second terminal in this embodiment is the BWP configuration information determined by the second terminal after considering the first BWP configuration information obtained by the second terminal and the second BWP configuration information obtained by the first terminal, that is, the The fourth BWP configuration information includes one or more target resource pools used for unicast connection communication between the first terminal and the second terminal. Therefore, after the fourth BWP configuration information including the target resource pool is sent to the second radio access network device, it can be used as a restriction on the scheduling resources of the second radio access network device to ensure communication between the first terminal and the second terminal. Reliability.
  • the embodiment of the present application provides a communication method in which a first terminal sends second BWP configuration information to a second terminal; the second terminal sends fourth BWP configuration information to the first terminal; the first terminal sends a second wireless access network device Send the target resource pool and the first indication information; the second radio access network device selects the target SL resource for scheduling based on the target resource pool.
  • the second terminal sends the fourth BWP configuration information including the target resource pool to the first terminal, and the second terminal sends the target resource pool to the radio access network device, so that when the second radio access network device schedules resources,
  • the target SL resource can be selected from the target resource pool for scheduling, so that the sending resource pool for sending data by the first terminal belongs to the receiving resource pool for receiving data by the second terminal, and/or the sending resource pool for sending data by the second terminal belongs to the first terminal.
  • a receiving resource pool for receiving data by a terminal can ensure the reliability of the unicast connection and communication between the first terminal and the second terminal.
  • the first terminal device receives one or more side link SL carrier configuration information sent by the second radio access network device.
  • SL carrier configuration information includes BWP configuration information
  • BWP configuration information includes one or more resource pools.
  • One resource pool may include one or more sub-channels, and the number of sub-channels included in different resource pools in a BWP may be the same or different, which is not limited in this embodiment of the application.
  • the first terminal receives the downlink control information DCI sent by the second radio access network device.
  • the DCI includes first indication information, and the first indication information is used to indicate a time-frequency resource on a first SL carrier among one or more SL carriers, and the first SL carrier is an SL carrier scheduled by a second radio access network device.
  • the time-frequency resources on the first SL carrier include time-frequency resources of one or more resource pools in one BWP. That is, the time-frequency resources scheduled by the radio access network device may involve multiple resource pools.
  • the first indication information includes second indication information and third indication information
  • the second indication information is used to indicate the first SL carrier
  • the third indication information includes the minimum index of the subchannel scheduled by the radio access network device. That is, the second indication information indicates the SL carrier scheduled by the radio access network device, and the third indication information is used to indicate the subchannel with the smallest index occupied by the time-frequency resource on the first SL carrier.
  • the first terminal sends data to the second terminal on the time-frequency resource of the first SL carrier according to the first indication information.
  • the configured subchannels of the first terminal are independently numbered in the resource pool.
  • the first indication information further includes fourth indication information, and the fourth indication information is used to indicate a resource pool scheduled by the radio access network device.
  • sending data to the second terminal on the time-frequency resource of the first SL carrier may include: according to the second indication information and the third indication included in the first indication information
  • the information and the fourth indication information determine the subchannel scheduled by the radio access network device, and send data to the second terminal on the subchannel scheduled by the radio access network device.
  • sub-channels are independently numbered in the resource pool, that is, the numbers of sub-channels in different resource pools can be repeated, therefore, the first SL scheduled by the radio access network device can be determined first according to the second indication information.
  • Carrier and then determine the resource pool scheduled by the radio access network device according to the fourth indication information, and then determine the minimum index of the subchannel scheduled by the radio access network device according to the third indication information, so that the specific scheduling of the radio access network device can be determined Position the time-frequency resource, and send data to the second terminal on the time-frequency resource.
  • step S1003 the foregoing method further includes step S1004.
  • the first terminal uniformly numbers the subchannels of one or more resource pools in the BWP configuration information from low frequency to high frequency.
  • the BWP configuration information includes two resource pools (resource pools, RP), which are respectively denoted as RP1 and RP2, where RP1 includes 1 subchannel and RP2 includes 2 subchannels, and the UE can
  • RP resource pools
  • RP1 includes 1 subchannel
  • RP2 includes 2 subchannels
  • the UE can
  • the three sub-channels in a BWP are numbered uniformly across the resource pool from low frequency to high frequency, as shown in Fig. 11, they are sub-channel 1, sub-channel 2, and sub-channel 3 respectively.
  • the first terminal sending data to the second terminal on the time-frequency resource of the first SL carrier according to the first indication information may include: according to the second indication information and the third indication information included in the first indication information Determine the sub-channel scheduled by the radio access network device, and send data to the second terminal on the sub-channel scheduled by the radio access network device.
  • the first SL carrier scheduled by the radio access network device can be determined first according to the second indication information , And then determine the minimum index of the subchannel scheduled by the radio access network device according to the third indication information, so as to determine the specific time-frequency resource location scheduled by the radio access network device, and send data to the second terminal on the time-frequency resource .
  • the first terminal device receives one or more side link SL carrier configuration information sent by the second wireless access network device; the first terminal receives the downlink sent by the second wireless access network device Control information DCI; the first terminal sends data to the second terminal on the time-frequency resource of the first SL carrier according to the first indication information.
  • the specific time-frequency resource location can be accurately specified to the UE.
  • the method further includes steps S1201-S1202.
  • the terminal receives first information sent by a wireless access network device.
  • the first information includes one or more first SL carrier configuration information.
  • the first SL carrier configuration information includes first BWP configuration information, and the first BWP configuration information includes one or more first resource pools.
  • the terminal is in an idle state (IDLE) or a deactivated state (INACTIVE), and the above-mentioned first information may be carried in a broadcast message of the radio access network device.
  • the radio access network device may broadcast the first SL carrier configuration information to one or more terminals through a broadcast message, but due to the capabilities of different terminals and the services subscribed or the services of interest may be different, that is, the first SL of the broadcast
  • the carrier configuration information is not necessarily applicable to every terminal.
  • the terminal selects second SL carrier configuration information from one or more first SL carrier configuration information.
  • the second SL carrier is one or more of the first SL carriers.
  • the second SL carrier configuration information includes second BWP configuration information, and the second BWP configuration information includes one or more second resource pools, and the second resource pool is a resource pool in the foregoing first resource pool.
  • the terminal may select at least one frequency point corresponding to the service of interest from one or more first SL carrier configuration information to determine the second SL carrier configuration information.
  • the terminal may select the second SL carrier configuration information that does not exceed (less than or equal to) the maximum bandwidth supported by the terminal according to its own radio frequency capability.
  • the above-mentioned first information may also include a channel busy ratio (CBR) threshold.
  • the CBR threshold may not distinguish between frequency points, or each frequency point corresponds to a CBR threshold. value.
  • the terminal may select a resource pool whose measurement result is greater than or equal to the threshold value as the second resource pool according to the CBR threshold value.
  • the foregoing first information may further include a service priority corresponding to the first SL carrier, and the service priority may be obtained by the radio access network device from the V2X control function CF unit of the core network device.
  • the terminal may determine the service priority based on the service quality (Quality of Service, QoS).
  • QoS Quality of Service
  • the terminal when selecting a resource pool, the terminal may preferentially select a pre-configured resource pool for communication.
  • the embodiment of the present application does not limit the specific method of how the terminal determines the second SL carrier configuration information from the one or more first SL carrier configuration information, and the foregoing is only an exemplary description.
  • the terminal in this embodiment can further select the BWP configuration broadcast by the radio access network device based on the BWP configuration broadcast by the radio access network device and various factors, and determine the BWP that it actually uses to ensure service transmission. reliability.
  • a terminal receives first information sent by a wireless access network device; the terminal determines second SL carrier configuration information from one or more first SL carrier configuration information according to preset conditions.
  • the reliability of service transmission is ensured.
  • the embodiment of the present application may divide the computer into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 13 shows a possible structural schematic diagram of the terminal involved in the foregoing embodiment.
  • the terminal 1300 includes a transceiver module 1301 and a processing module 1302.
  • the transceiver module 1301 can be used to support the terminal 1300 to perform S403 in FIG. 5, or S405 in FIG. 6, or S702 in FIG. 7, or S901 and S903 in FIG. 9, or S1001-S1002 in FIG. S1201 in 12;
  • the processing module 1302 can be used to support the terminal 1300 to perform S402 in FIG. 4, or S402 in FIG. 5, or S1003 and S1004 in FIG. 10, or S1202 in FIG.
  • transceiver module 1301 is also used to send and receive information, or to communicate with other network elements (for example, other terminals or wireless access network devices), and/or to use in other processes of the technology described herein.
  • network elements for example, other terminals or wireless access network devices
  • all relevant content of each step involved in the above method embodiment can be cited in the function description of the corresponding function module, and will not be repeated here.
  • FIG. 14 shows a possible schematic structural diagram of the radio access network device involved in the foregoing embodiment.
  • the radio access network device 1400 includes: a transceiver module 1401 , Processing module 1402.
  • the transceiver module 1401 may be used to support the wireless access network device 1400 to perform S704 in FIG. 8; the processing module 1402 may be used to support the wireless access network device 1400 to perform S404 in FIG. 5, or S703 in FIG. 7, or FIG. 9 S904 in.
  • the transceiver module 1401 is also used for sending and receiving information, or for communicating with other network elements (for example, a terminal), and/or for other processes of the technology described herein.
  • all relevant content of each step involved in the above method embodiment can be cited in the function description of the corresponding function module, and will not be repeated here.
  • FIG. 15 shows a schematic diagram of a possible structure of the terminal 1500 involved in the foregoing embodiment.
  • the terminal 1500 includes a processor 1501 and a transceiver 1502.
  • the processor 1501 is used to control and manage the actions of the terminal 1500.
  • the processor 1501 is used to support the terminal 1500 to execute S402 in FIG. 4 or S402 in FIG. S402, or S1003 and S1004 in FIG. 10, or S1202 in FIG. 12, and/or other processes used in the techniques described herein.
  • the transceiver 1502 is used to support the terminal 1500 to perform S403 in FIG. 5, or S405 in FIG. 6, or S702 in FIG. 7, or S901 and S903 in FIG.
  • the transceiver 1502 is also used for sending and receiving information, or for communicating with other network elements (for example, a terminal), and/or for other processes of the technology described herein.
  • the aforementioned terminal 1500 may further include a memory 1503, and the memory 1503 is configured to store the program code and data corresponding to the terminal 1500 executing any of the communication methods provided above.
  • the memory 1503 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.
  • the terminal 1500 may be the terminal device shown in FIG. 3, and the description of all related content of the components involved in FIG. 3 can be quoted from the functional description of the corresponding components in FIG. 15, which will not be repeated here.
  • FIG. 16 shows a schematic diagram of a possible structure of the radio access network device 1600 involved in the foregoing embodiment.
  • the wireless access network device 1600 includes a processor 1601 and a transceiver 1602.
  • the processor 1601 is used to control and manage the actions of the wireless access network device 1600.
  • the processor 1601 is used to support the wireless access network device 1600.
  • the transceiver 1602 is used to support the wireless access network device 1600 to perform S704 in FIG. 8.
  • the transceiver 1602 is also used for sending and receiving information, or for communicating with other network elements (for example, terminals), and/or for other processes of the technology described herein.
  • the above-mentioned radio access network device 1600 may further include a memory 1603, and the memory 1603 is configured to store the program code and data corresponding to any of the communication methods provided above by the radio access network device 1600.
  • the memory 1603 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.
  • the steps of the method or algorithm described in conjunction with the disclosure of this application can be implemented in a hardware manner, or implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, erasable programmable read-only memory (Erasable Programmable ROM, EPROM), and electrically erasable Programming read-only memory (Electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the ASIC may be located in the core network interface device.
  • the processor and the storage medium may also exist as discrete components in the core network interface device.
  • the functions described in this application can be implemented by hardware, software, firmware or any combination thereof. When implemented by software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium.
  • the computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
  • the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

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Abstract

本申请实施例公开了一种通信方法和装置，涉及通信技术领域，解决了现有技术单播连接的两个终端设备获取的BWP配置不匹配导致通信失败的问题。具体方案为：第一终端接收第二终端发送的第一侧链路SL载波配置信息；第一侧链路为第一终端和第二终端之间的无线通信链路；第一SL载波配置信息包括第一带宽部分BWP配置信息，第一BWP配置信息包括一个或多个第一资源池；第一终端基于第一BWP配置信息与第二终端进行单播连接通信。

Description

一种通信方法和装置
本申请要求于2019年03月28日提交国家知识产权局、申请号为201910245845.X、申请名称为“一种通信方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术领域，尤其涉及一种通信方法和装置。
背景技术
车联网(Vehicle to Everything，V2X)指通过配置在车辆上的装置以及各种通信技术实现车与外界的互联，如车与车、车与人、车与路边基础设施、车与网络等的互联通信。目前车联网中引入了侧链路(SideLink，SL)技术，针对新无线电(New Radio，NR)V2X SL，标准在SL上引入了带宽部分(bandwidth part，BWP)的概念。
在BWP的框架下，NR V2X SL上的资源配置是以资源池(resource pool，RP)的形式进行，一个载波的带宽很大，甚至可以覆盖多个频点，而不同业务对频点的要求不同，因此可以在一个BWP上支持多个资源池。
但是，单播连接的两个终端设备(user equipment，UE)获取的BWP配置可能不匹配，导致通信失败。例如，如图1所示，UE1的BWP包括的是资源池#2、资源池#3和资源池#4，UE2的BWP包括的是资源池#1、资源池#2和资源池#3。当UE2在资源池#1上发送数据时，UE1接收不到，或者，当UE1在资源池#4上发送数据时，UE2接收不到，从而导致通信失败。
发明内容
本申请实施例提供一种通信方法和装置，能够保证终端之间单播连接通信的可靠性。
为达到上述目的，本申请实施例采用如下技术方案：
本申请实施例的第一方面，提供一种通信方法，该方法包括：第一终端接收第二终端发送的第一侧链路SL载波配置信息；该第一侧链路为第一终端和第二终端之间的无线通信链路；该第一SL载波配置信息包括第一带宽部分BWP配置信息，该第一BWP配置信息包括一个或多个第一资源池；第一终端基于该第一BWP配置信息与第二终端进行单播连接通信。可以理解的，上述第一终端基于该第一BWP配置信息与第二终端进行单播连接通信时可以获取SL资源进行上述单播连接通信时，该SL资源可以为第一终端的BWP配置信息和第二终端的BWP配置信息中重叠的时频资源。基于本方案，第一终端基于第二终端的第二BWP配置信息与第二终端进行单播连接通信时，该第一终端发送数据的发送资源池在第二终端接收数据的接收资源池范围内，即第二终端能够接收第一终端发送的数据，确保了第一终端和第二终端之间单播连接通信的可靠性。需要说明的是，该多个第一资源池为该第一BWP配置信息包括的时频不同的多个资源池。
结合第一方面，在一种可能的实现方式中，第一SL载波为上述单播连接对应的载波。基于本方案，第二终端向第一终端发送单播连接对应的载波，从而第一终端可以基于该单播连接对应的载波进行单播连接通信。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，上述第一终端基于上述第一BWP配置信息与上述第二终端进行单播连接通信，包括：上述第一终端根据上述第一BWP配置信息和第二BWP配置信息，获取目标资源池，该目标资源池用于该第一终端和第二终端进行上述单播连接通信；该第二BWP配置信息属于第一SL载波配置信息，该第二BWP配置信息包括一个或多个第二资源池；第一终端基于该目标资源池与第二终端进行所述单播连接通信。基于本方案，通过根据第一BWP配置信息和第二BWP配置信息，获取第一BWP配置信息和第二BWP配置信息中重叠的时频资源，并基于该重叠的视频资源进行通信时，能够确保第一终端发送的数据能够被第二终端接收到，确保了第一终端和第二终端之间单播连接通信的可靠性。需要说明的是，该多个第二资源池为该第二BWP配置信息包括的时频不同的多个资源池。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，上述第一终端基于第一BWP配置信息与第二终端进行单播连接通信，包括：第一终端向无线接入网设备发送上述第一BWP配置信息和第一指示信息；该第一指示信息用于指示上述单播连接。基于本方案，第一终端通过向无线接入网设备发送第二终端的第一BWP配置信息，该第一BWP配置信息可以为作为无线接入网设备调度资源或配置资源的限制。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，上述方法还包括：第一终端接收无线接入网设备发送的第三BWP配置信息，该第三BWP配置信息与上述第一BWP配置信息对应同一个SL载波；第一终端基于该第三BWP配置信息与第二终端进行上述单播连接通信。基于本方案，由于第三BWP配置信息与第一BWP配置信息对应同一个SL载波，因此第一终端基于该第三BWP配置信息与第二终端进行单播连接通信时，能够确保该单播连接通信的可靠性。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，上述第一资源池为目标资源池，该目标资源池用于上述第一终端和上述第二终端进行上述单播连接通信。基于本方案，第二终端向第一终端发送第一资源池和第二资源池中时频域重叠的资源池，能够确保第一终端可以接收到第二终端发送的数据，第二终端也可以接收到第一终端发送的数据，确保了第一终端和第二终端之间单播连接通信的可靠性。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，上述方法还包括：上述第一终端向上述第二终端发送第二BWP配置信息。基于本方案，第一终端通过向第二终端发送第二BWP配置信息，可以使得第二终端基于该第二BWP配置信息进行单播连接通信。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，上述方法还包括：上述第一终端向上述无线接入网设备发送上述目标资源池和第一指示信息，该第一指示信息用于指示上述单播连接。基于本方案，无线接入网设备可以基于第一终端发送的单播连接信息和目标资源池调度资源。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，上述方法还包括：上述第一终端向上述第二终端发送上述目标资源池。基于本方案，可以使得第二终端基于该目标资源池与第一终端进行上述单播连接通信。可以理解的，该目标资源池可以是是第一终端接收数据的接收资源池与第二终端发送数据的发送资源池的交集，从而能够确保第二终端发送数据的发送资源池属于第一终端接收数据的接收资源池，即第一终端可以接收到第二终端发送的数据，保证了第一终端和第二终端之间单播连接通信的可靠性。
本申请实施例的第二方面，提供一种通信方法，该方法包括：无线接入网设备接收第一终端发送的第一带宽部分BWP配置信息和第一指示信息；该第一BWP配置信息属于第一侧链路SL载波配置信息，该第一侧链路为第一终端和第二终端之间的无线通信链路；该第一BWP配置信息为第二终端的BWP配置信息，该第一BWP配置信息包括一个或多个第一资源池；该第一指示信息用于指示第一终端和第二终端之间的单播连接；该无线接入网设备基于第一BWP配置信息，调度目标SL资源，该目标SL资源为目标资源池内的时频资源；该目标资源池用于第一终端和第二终端进行上述单播连接通信。基于本方案，由于无线接入网设备调度资源时，考虑了第二终端的第一BWP配置，因此可以将第一终端发送数据的资源限制在该调度资源的时频域范围内，从而确保第二终端可以接收到第一终端发送的数据。
结合第二方面，在一种可能的实现方式中，上述方法还包括：上述无线接入网设备基于第一BWP配置信息，获取第二BWP配置信息；该第二BWP配置信息与第一BWP配置信息对应同一个SL载波；无线接入网设备向第一终端发送该第二BWP配置信息。基于本方案，由于无线接入网设备为第一终端配置第二BWP时，考虑了第二终端的第一BWP配置，因此可以将第二BWP中的发送资源池限制在第一BWP的接收资源池的时频域范围内，从而确保第二终端可以接收到第一终端发送的数据。
结合第二方面和上述可能的实现方式，在另一种可能的实现方式中，上述第一资源池为所述目标资源池。基于本方案，无线接入网设备调度资源时，可以将调度资源限制在该目标资源池的时频域范围内，从而确保单播连接的第一终端和第二终端之间通信的可靠性。
本申请实施例的第三方面，提供一种通信装置，该通信装置包括：处理模块和收发模块；该收发模块，用于接收第二终端发送的第一侧链路SL载波配置信息；所述第一侧链路为所述通信装置和所述第二终端之间的无线通信链路；所述第一SL载波配置信息包括第一带宽部分BWP配置信息，所述第一BWP配置信息包括一个或多个第一资源池；该处理模块，用于通过收发模块基于第一BWP配置信息与第二终端进行单播连接通信。
结合第三方面，在一种可能的实现方式中，上述第一SL载波为所述单播连接对应的载波。
结合第三方面和上述可能的实现方式，在另一种可能的实现方式中，上述处理模块具体用于：根据第一BWP配置信息和第二BWP配置信息，获取目标资源池，该目标资源池用于上述通信装置和第二终端进行所述单播连接通信；该第二BWP配置信息属于第一SL载波配置信息，该第二BWP配置信息包括一个或多个第二资源池；通 过收发模块基于该目标资源池与第二终端进行上述单播连接通信。
结合第三方面和上述可能的实现方式，在另一种可能的实现方式中，上述收发模块，还用于向无线接入网设备发送上述第一BWP配置信息和第一指示信息；该第一指示信息用于指示上述单播连接。
结合第三方面和上述可能的实现方式，在另一种可能的实现方式中，上述收发模块，还用于接收上述无线接入网设备发送的第三BWP配置信息，该第三BWP配置信息与上述第一BWP配置信息对应同一个SL载波；上述处理模块，具体用于通过收发模块基于所述第三BWP配置信息与所述第二终端进行所述单播连接通信。
结合第三方面和上述可能的实现方式，在另一种可能的实现方式中，上述第一资源池为目标资源池，该目标资源池用于上述通信装置和上述第二终端进行上述单播连接通信。
结合第三方面和上述可能的实现方式，在另一种可能的实现方式中，上述收发模块，还用于向上述第二终端发送第二BWP配置信息。
结合第三方面和上述可能的实现方式，在另一种可能的实现方式中，上述收发模块，还用于向上述无线接入网设备发送上述目标资源池和第一指示信息，该第一指示信息用于指示上述单播连接。
结合第三方面和上述可能的实现方式，在另一种可能的实现方式中，上述收发模块，还用于向上述第二终端发送上述目标资源池。
本申请实施例的第四方面，提供一种通信装置，该通信装置包括：收发模块和处理模块；
该收发模块，用于接收第一终端发送的第一带宽部分BWP配置信息和第一指示信息；该第一BWP配置信息属于第一侧链路SL载波配置信息，该第一侧链路为第一终端和第二终端之间的无线通信链路；该第一BWP配置信息为第二终端的BWP配置信息，该第一BWP配置信息包括一个或多个第一资源池；该第一指示信息用于指示上述第一终端和上述第二终端之间的单播连接；上述处理模块，用于基于该第一BWP配置信息，调度目标SL资源，该目标SL资源为目标资源池内的时频资源；该目标资源池用于第一终端和第二终端进行上述单播连接通信。
结合第四方面，在一种可能的实现方式中，处理模块，具体用于基于上述第一BWP配置信息，获取第二BWP配置信息；该第二BWP配置信息与第一BWP配置信息对应同一个SL载波；上述收发模块，还用于向上述第一终端发送该第二BWP配置信息。
结合第四方面和上述可能的实现方式，在另一种可能的实现方式中，上述第一资源池为上述目标资源池。
本申请实施例的第五方面，提供一种通信方法，该方法包括：第一终端接收无线接入网设备发送的一个或多个侧链路SL载波配置信息，该SL载波配置信息包括带宽部分BWP配置信息，该BWP配置信息包括一个或多个资源池；一个资源池包括一个或多个子信道；该第一终端接收上述无线接入网设备发送的下行控制信息DCI，DCI包括第一指示信息，第一指示信息用于指示上述一个或多个SL载波中的第一SL载波上的时频资源，第一SL载波为无线接入网设备调度的SL载波；第一终端根据第一指示信息，在时频资源上向第二终端发送数据。基于本方案，能够在一个BWP包括多 个资源池时，根据DCI确定无线接入网设备指示的具体时频资源位置。
结合第五方面，在一种可能的实现方式中，上述第一指示信息包括第二指示信息和第三指示信息，第二指示信息用于指示上述第一SL载波，第三指示信息包括无线接入网设备调度的子信道的最小索引。基于本方案，可以根据第二指示信息和第三指示信息确定无线接入网设备调度的SL载波，以及无线接入网设备调度的子信道的最小索引。
结合第五方面和上述可能的实现方式，在另一种可能的实现方式中，第一终端被配置的子信道在资源池内独立编号；上述第一指示信息还包括第四指示信息，第四指示信息用于指示无线接入网设备调度的资源池。基于本方案，能够在子信道在资源池内独立编号时，根据第一指示信息确定无线接入网设备调度的具体时频域资源的位置。
结合第五方面和上述可能的实现方式，在另一种可能的实现方式中，上述方法还包括：第一终端对上述BWP配置信息中的一个或多个资源池的子信道，从低频至高频统一编号。基于本方案，通过对一个BWP内的一个或多个资源池的子信道从低频至高频统一编号，可以确定无线接入网设备调度的具体时频域资源的位置。
结合第五方面和上述可能的实现方式，在另一种可能的实现方式中，上述时频资源包括BWP配置信息中的一个或多个资源池的时频资源。基于本方案，无线接入网设备调度的时频资源可以涉及多个资源池中的时频资源。
本申请实施例的第六方面，提供一种通信装置，该通信装置包括收发模块和处理模块。收发模块，用于接收无线接入网设备发送的一个或多个侧链路SL载波配置信息，SL载波配置信息包括带宽部分BWP配置信息，BWP配置信息包括一个或多个资源池；一个资源池包括一个或多个子信道；该收发模块还用于，接收无线接入网设备发送的下行控制信息DCI，DCI包括第一指示信息，第一指示信息用于指示一个或多个SL载波中的第一SL载波上的时频资源，第一SL载波为无线接入网设备调度的SL载波；处理模块，用于根据第一指示信息，通过收发模块在上述时频资源上向第二终端发送数据。
结合第六方面，在一种可能的实现方式中，上述第一指示信息包括第二指示信息和第三指示信息，第二指示信息用于指示上述第一SL载波，第三指示信息包括上述无线接入网设备调度的子信道的最小索引。
结合第六方面和上述可能的实现方式，在另一种可能的实现方式中，上述通信装置被配置的子信道在资源池内独立编号；第一指示信息还包括第四指示信息，该第四指示信息用于指示所述无线接入网设备调度的资源池。
结合第六方面和上述可能的实现方式，在另一种可能的实现方式中，上述处理模块，还用于对所述BWP配置信息中的一个或多个资源池的子信道，从低频至高频统一编号。
结合第六方面和上述可能的实现方式，在另一种可能的实现方式中，时频资源包括上述BWP配置信息中的一个或多个资源池的时频资源。
本申请实施例的第七方面，提供一种通信方法，该方法包括：终端接收无线接入网设备发送的第一信息，第一信息包括一个或多个第一SL载波配置信息；第一SL载波配置信息包括第一带宽部分BWP配置信息，第一BWP配置信息包括一个或多个第 一资源池；终端从一个或多个第一SL载波配置信息中，选择第二SL载波配置信息；第二SL载波为上述一个或多个第一SL载波中的载波，该第二SL载波配置信息包括第二BWP配置信息，第二BWP配置信息包括一个或多个第二资源池。基于本方案，能够在无线接入网设备广播的BWP配置中选择自己真正使用的BWP，保证了业务传输的可靠性。
结合第七方面，在一种可能的实现方式中，第一信息还包括信道繁忙率CBR门限值，上述第二资源池为上述第一资源池中CBR测量值大于或等于所述CBR门限值的资源池。基于本方案，可以根据信道繁忙率选择资源池。
结合第七方面和上述可能的实现方式，在另一种可能的实现方式中，第一信息还包括上述第一SL载波对应的业务优先级，所述第二SL载波为所述第一SL载波中业务优先级高于预设阈值的业务对应的SL载波。基于本方案，可以根据业务优先级选择资源池，从而使得终端的能力不足以覆盖所有感兴趣的频点对应的资源池时，优先选择业务优先级较高的业务对应的频点。
结合第七方面和上述可能的实现方式，在另一种可能的实现方式中，上述第一信息携带在广播消息中。基于本方案，可以在无线接入网设备广播的BWP配置中进行选择。
本申请实施例的第八方面，提供一种通信装置，该通信装置包括收发模块和处理模块；收发模块，用于接收无线接入网设备发送的第一信息，所述第一信息包括一个或多个第一SL载波配置信息；所述第一SL载波配置信息包括第一带宽部分BWP配置信息，所述第一BWP配置信息包括一个或多个第一资源池；处理模块，用于从上述一个或多个第一SL载波配置信息中，选择第二SL载波配置信息；该第二SL载波为所述一个或多个第一SL载波中的载波，该第二SL载波配置信息包括第二BWP配置信息，第二BWP配置信息包括一个或多个第二资源池。
结合第八方面，在一种可能的实现方式中，第一信息还包括信道繁忙率CBR门限值，上述第二资源池为上述第一资源池中CBR测量值大于或等于所述CBR门限值的资源池。
结合第八方面和上述可能的实现方式，在另一种可能的实现方式中，第一信息还包括上述第一SL载波对应的业务优先级，所述第二SL载波为上述第一SL载波中业务优先级高于预设阈值的业务对应的SL载波。
结合第八方面和上述可能的实现方式，在另一种可能的实现方式中，上述第一信息携带在广播消息中。
上述第二方面以及第二方面的各种实现方式的效果描述可以参考第一方面和第一方面的各种实现方式的相应效果的描述，上述第四方面以及第四方面的各种实现方式的效果描述可以参考第二方面和第二方面的各种实现方式的相应效果的描述，上述第六方面以及第六方面的各种实现方式的效果描述可以参考第五方面和第五方面的各种实现方式的相应效果的描述，上述第八方面以及第八方面的各种实现方式的效果描述可以参考第七方面和第七方面的各种实现方式的相应效果的描述，在此不再赘述。
本申请实施例的第九方面，提供一种计算机存储介质，所述计算机存储介质中具有计算机程序代码，当所述计算机程序代码在处理器上运行时，使得所述处理器执行 上述任一方面所述的通信方法。
本申请实施例的第十方面，提供了一种计算机程序产品，该程序产品储存有上述处理器执行的计算机软件指令，该计算机软件指令包含用于执行上述方面所述方案的程序。
本申请实施例的第十一方面，提供了一种通信装置，该装置包括收发器、处理器以及存储器，收发器，用于收发信息，或者用于与其他网元通信；存储器，用于存储计算机执行指令；处理器，用于执行所计算机执行指令实现上述第一方面、第五方面或第七方面所述的通信方法。
本申请实施例的第十二方面，提供了一种通信装置，该装置包括收发器、处理器以及存储器，收发器，用于收发信息，或者用于与其他网元通信；存储器，用于存储计算机执行指令；处理器，用于执行所计算机执行指令实现上述第二方面所述的通信方法。
本申请实施例的第十三方面，提供了一种通信装置，该装置以芯片的产品形态存在，该装置的结构中包括处理器，还可以包括存储器，该存储器用于与处理器耦合，保存该装置必要的程序指令和数据，该处理器用于执行存储器中存储的程序指令，使得该装置执行上述方法中装置的功能。
附图说明
图1为现有技术提供的一种终端之间的资源池配置的示意图；
图2为本申请实施例提供的一种V2X通信场景的示意图；
图3为本申请实施例提供的一种终端设备的结构示意图；
图4为本申请实施例提供的一种通信方法的流程示意图；
图5为本申请实施例提供的另一种通信方法的流程示意图；
图6为本申请实施例提供的另一种通信方法的流程示意图；
图7为本申请实施例提供的另一种通信方法的流程示意图；
图8为本申请实施例提供的另一种通信方法的流程示意图；
图9为本申请实施例提供的另一种通信方法的流程示意图；
图10为本申请实施例提供的另一种通信方法的流程示意图；
图11为本申请实施例提供的一种资源池配置的示意图；
图12为本申请实施例提供的另一种通信方法的流程示意图；
图13为本申请实施例提供的一种终端的组成示意图；
图14为本申请实施例提供的一种无线接入网设备的组成示意图；
图15为本申请实施例提供的另一种终端的组成示意图；
图16为本申请实施例提供的另一种无线接入网设备的组成示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。在本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，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的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达， 是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c或a-b-c，其中a、b和c可以是单个，也可以是多个。另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分，本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定。比如，本申请实施例中的第一终端中的“第一”和第二终端中的“第二”仅用于区分不同的终端。
需要说明的是，本申请中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本申请实施例提供一种通信方法，该通信方法应用于图2所示的V2X通信场景中。如图2所示，第一终端和第二终端之间通过侧链路(Sidelink，SL)通信，侧链路指的是V2X网络中的辅链路，V2X网络中除了辅链路外，还有上行链路(uplink)以及下行链路(downlink)。
示例性的，V2X通信包括车与车通信(Vehicle-to-Vehicle，V2V)、车与路侧基础设施通信(Vehicle-to-Infrastructure，V2I)、车与人通信(Vehicle to People，V2P)，以及车与应用服务器通信(Vehicle-to-Network，V2N)等。图2中仅以第一终端和第二终端均为车的V2V通信为例进行示意，本申请实施例对于V2X的具体通信场景并不进行限定。
示例性的，在V2X网络中，终端获取V2X SL资源的方式有两种，一种是无线接入网设备调度方式，在该方式中，需要终端进入无线资源控制(Radio Resource Control，RRC)连接状态来传输数据，支持V2X功能的终端可以向无线接入网设备请求发送数据所使用的资源，无线接入网设备按需分配V2X SL资源。这种获取资源的模式在长期演进(Long Term Evolution，LTE)V2X中称为Mode 3(模式3)，在NR V2X中称为Mode 1(模式1)。例如，在NR V2X中采用模式1获取资源时，无线接入网设备可以配置终端所使用的资源池，再由无线接入网设备根据终端上报的Sidelink缓冲区状态报告(Buffer status report，BSR)，通过物理下行控制信道PDCCH(Physical Downlink Control Channel，PDCCH)为终端分配所配置的资源池中具体资源位置信息，比如可以通过下行控制信息(Downlink Control Information，DCI)指示终端的PC5口发送数据所使用的资源的位置信息。该PC5口为终端之间的通信接口。示例性的，无线接入网设备可以是基站，或者是提供无线接入的网络中的设备。
另一种是终端自主选择资源方式，在该方式中，终端可以在无线接入网设备广播或者控制功能(control function，CF)预配置或者RRC配置的V2X SL资源中自己选择资源传输数据。这种获取资源的模式在LTE V2X中称为Mode4(模式4)，在NR V2X中称为Mode2(模式2)。
需要说明的是，本申请实施例中对于终端获取V2X SL资源的方式并不进行限定，即终端可以通过以上模式1至模式4的任一种方式获取V2X SL资源传输数据。
示例性的，在NR V2X SL中终端的资源配置可以包括一个或多个SL载波，一个 SL载波可以包括一个或多个带宽部分(bandwidth part，BWP)，一个BWP可以包括一个或多个资源池，一个资源池可以包括一个或多个子信道，一个BWP内不同资源池的子信道的数量可以相同也可以不同，本申请实施例对此并不进行限定。
示例性的，图2所示的第一终端和第二终端之间存在单播连接，该第一终端和第二终端之间可以进行单播连接通信。需要说明的是，第一终端和第二终端之间进行单播连接通信时，第一终端发送数据时的发送资源池需要属于第二终端接收数据时的接收资源池，才能确保第二终端能够接收到第一终端发送的数据。
图3为本申请实施例提供的一种终端设备，该终端设备可以是车辆；也可以是安装在车辆上用于辅助车辆行驶的车载通信装置或者车载终端，或者车载通信装置或车载终端内的芯片。其中，该车载终端可以是用于实现无线通信功能的设备，例如终端或者可用于终端中的芯片等。其中，终端可以是5G网络或者未来演进的PLMN中的用户设备UE、接入终端、终端单元、终端站、移动站、移动台、远方站、远程终端、移动设备、无线通信设备、终端代理或终端装置等。接入终端可以是蜂窝电话、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、个人数字处理(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、车载设备或可穿戴设备，虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、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)中的无线终端等。该车载终端可以是移动的，也可以是固定的。
如图3所示，该终端设备300包括至少一个处理器301，存储器302、收发器303以及通信总线304。
下面结合图3对该终端设备的各个构成部件进行具体的介绍：
处理器301是终端设备的控制中心，可以是一个处理器，也可以是多个处理元件的统称。例如，处理器301是一个中央处理器(central processing unit，CPU)，也可以是特定集成电路(Application Specific Integrated Circuit，ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)。
其中，处理器301可以通过运行或执行存储在存储器302内的软件程序，以及调用存储在存储器302内的数据，执行终端设备的各种功能。
在具体的实现中，作为一种实施例，处理器301可以包括一个或多个CPU，例如图3中所示的CPU0和CPU1。
在具体实现中，作为一种实施例，终端设备可以包括多个处理器，例如图3中所示的处理器301和处理器305。这些处理器中的每一个可以是一个单核处理器(single-CPU)，也可以是一个多核处理器(multi-CPU)。这里的处理器可以指一个或多个终端设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
存储器302可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器302可以是独立存在，通过通信总线304与处理器301相连接。存储器302也可以和处理器301集成在一起。
其中，所述存储器302用于存储执行本发明方案的软件程序，并由处理器301来控制执行。
收发器303，用于与其他通信设备之间进行通信。当然，收发器303还可以用于与通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(Wireless Local Area Networks，WLAN)等。收发器303可以包括接收单元实现接收功能，以及发送单元实现发送功能。
通信总线304，可以是工业标准体系结构(Industry Standard Architecture，ISA)总线、外部通信设备互连(Peripheral Component，PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture，EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示，图3中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
图3中示出的终端设备结构并不构成对终端设备的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
为了解决现有技术在一个BWP包括多个资源池时，用现有的DCI可能导致终端之间通信失败的问题，本申请实施例提供一种通信方法，能够在BWP包括多个资源池时，保证终端之间通信的可靠性。
如图4所示，为本申请实施例提供的一种通信方法，在本实施例中第二终端已获取BWP配置信息，该通信方法包括步骤S401-S402。
S401、第二终端向第一终端发送第一侧链路SL载波配置信息。
可以理解的，第二终端可以通过PC5口或Uu口发送该第一BWP配置信息。
示例性的，该第一侧链路为第一终端和第二终端之间的无线通信链路。该第一SL载波配置信息包括第一BWP配置信息，该第一BWP配置信息包括一个或多个第一资源池。需要说明的是，该多个第一资源池为该第一BWP配置信息包括的时频不同的多个资源池。
示例性的，第一终端与第二终端之间存在单播连接。步骤S401中第二终端可以通过该单播连接向第一终端发送第一SL载波配置信息。示例性的，可以通过该单播连接对应的信令无线承载(Signal Radio Bearer，SRB)向第一终端发送第一SL载波配置信息。
示例性的，该第一BWP配置信息可以为第二终端获取的BWP配置信息。例如，该第一BWP配置信息可以为第一无线接入网设备为第二终端配置的BWP配置信息， 也可以为第二终端在第一无线接入网设备广播中获取的BWP配置信息，或者为第二终端通过预配置的方式获取的BWP配置信息，本申请实施例对此并不进行限定。
一种实现方式中，上述第一SL载波配置信息为第一终端和第二终端之间的该单播连接对应的载波的配置信息。例如，第二终端可以将其与第一终端之间的该单播连接的频点对应的载波的配置信息发给第一终端。可以理解的，该频点也可称为频率或载波，英文为frequency。可以理解的，第一终端和第二终端之间有可能会存在多个单播连接，对应的是不同的业务类型，此时不同单播连接可以对应不同的频点。
S402、第一终端基于第一BWP配置信息与第二终端进行单播连接通信。
示例性的，步骤S402中第一终端基于第一BWP配置信息与第二终端进行单播连接通信，可以包括：第一终端根据第一BWP配置信息和第二BWP配置信息，获取SL资源进行上述单播连接通信。该第二BWP配置信息属于第一SL载波配置信息，该第二BWP配置信息包括一个或多个第二资源池。需要说明的是，该多个第二资源池为该第二BWP配置信息包括的时频不同的多个资源池。
示例性的，上述第二BWP配置信息可以为第一终端获取的BWP配置信息。例如，该第二BWP配置信息可以为第二无线接入网设备为第一终端配置的BWP配置信息，也可以为第一终端在第二无线接入网设备广播或预配置的资源中获取的BWP配置信息，本申请实施例对此并不进行限定。需要说明的是，第一终端连接的第二无线接入网设备和第二终端连接的第一无线接入网设备可以为同一个无线接入网设备，也可以为不同的无线接入网设备，本申请实施例对此并不进行限定。
示例性的，上述第一终端根据第一BWP配置信息和第二BWP配置信息，获取SL资源进行上述单播连接通信时，该SL资源可以为第一BWP配置信息和第二BWP配置信息中重叠的时频资源。示例性的，该SL资源可以是第二BWP配置信息中的发送资源池与第一BWP配置信息中的接收资源池，在时频域上位置重叠的资源，作为单播连接通信的SL资源；和/或，该SL资源可以是第一BWP配置信息中的发送资源池与第二BWP配置信息中的接收资源池，在时频域上位置重叠的资源，作为单播连接通信的SL资源。故第一终端在该SL资源上与第二终端通信时，该第一终端发送数据的发送资源池属于第二终端接收数据的接收资源池，和/或，该第二终端发送数据的发送资源池属于第一终端接收数据的接收资源池。因此，可以确保单播连接的第一终端和第二终端之间通信的可靠性。
(可选的)上述第一终端基于第一BWP配置信息与第二终端进行单播连接通信，可以包括：第一终端根据第一BWP配置信息和第二BWP配置信息，获取目标资源池，该目标资源池用于第一终端和第二终端进行上述单播连接通信。第一终端基于目标资源池与第二终端进行上述单播连接通信。上述SL资源为该目标资源池内的SL资源。
(可选的)该第一终端可以根据第一BWP配置信息和第二BWP配置信息，将第一资源池和第二资源池中时频域相同的资源池确定为目标资源池。即该目标资源池既属于第一BWP配置信息，也属于第二BWP配置信息；或者可以理解为，该目标资源池既属于第一资源池中的资源池，也属于第二资源池中的资源池。该目标资源池可以理解为是第一BWP配置信息与第二BWP配置信息的交集；或者，可以理解为，第一资源池和第二资源池的交集。可以理解的，第一资源池可以是发送资源池，第二资源 池可以是接收资源池，或者，第一资源池可以是接收资源池，第二资源池可以是发送资源池。该目标资源池可以为一个BWP内的一个或多个资源池，本申请实施例对此并不进行限定。
示例性的，若发送资源池和接收资源池分开配置。该第一终端可以根据第一BWP配置信息和第二BWP配置信息，将第一BWP配置信息中的接收资源池和第二BWP配置信息中的发送资源池中时频域位置重叠的资源，或者时频域位置重叠的资源池确定为目标资源池；和/或，将第一BWP配置信息中的发送资源池和第二BWP配置信息中的接收资源池中时频域位置重叠的资源，或者时频域位置重叠的资源池确定为目标资源池。从而使得，第一终端发送数据的发送资源池，属于第二终端接收数据的接收资源池，和/或，第二终端发送数据的发送资源池，属于第一终端接收数据的接收资源池。
示例性的，本实施例可以适用于第一终端处理空闲态或连接态的场景。在NR V2X中，第一终端可以采用模式1或模式2获取资源。若第一终端采用模式1，第一终端可以根据第二终端发送的第一BWP配置信息和第一终端获取的第二BWP配置信息进行调度。若第一终端采用模式2，第一终端可以根据第二终端发送的第一BWP配置信息和第一终端获取的第二BWP配置信息自己选择资源。
如图5所示，若第一终端采用模式1，在上述步骤S401-S402之后还可以包括步骤S403-S404。
S403、第一终端向第二无线接入网设备发送该目标资源池和第一指示信息。
该第一指示信息用于指示第一终端和第二终端之间的单播连接。例如，该第一指示信息可以为单播连接的目的标识Destination ID，可选的，也可以包括单播连接的源标识Source ID。该目的标识是第一终端从第二终端接收的该第二终端为该单播连接分配的标识，该源标识是第一终端为该单播连接分配的标识。
可以理解的，第一终端通过向第二无线接入网设备发送该目标资源池和第一指示信息，使得第二无线接入网设备在为第一终端和第二终端之间的单播连接调度资源时，可以将该目标资源池作为第二无线接入网设备调度的限制。
S404、第二无线接入网设备基于目标资源池，调度目标SL资源。
该目标SL资源为目标资源池内的时频资源。
可以理解的，由于该目标资源池为第一资源池和第二资源池的交集，故无线接入网设备在调度时，可以基于该目标资源池进行调度，示例性的，无线接入网设备调度的资源需要限制在该目标资源池的时频域范围内，从而第一终端和第二终端进行单播连接通信时，可以确保第一终端发送数据的发送资源池属于第二终端接收数据的接收资源池，因此，能够给确保单播连接的第一终端和第二终端之间通信的可靠性。
如图6所示，上述方法还可以包括步骤S405。
S405、第一终端向第二终端发送目标资源池。
示例性的，第一终端可以向第二终端发送目标资源池，以使得第二终端基于该目标资源池与第一终端进行上述单播连接通信。
可以理解的，该目标资源池是第一终端接收数据的接收资源池与第二终端发送数据的发送资源池的交集，因此，第二终端基于该目标资源池与第一终端进行上述单播 连接通信，可以确保第二终端发送数据的发送资源池属于第一终端接收数据的接收资源池，即第一终端可以接收到第二终端发送的数据，确保了第一终端和第二终端之间单播连接通信的可靠性。
(可选的)，目标资源池也可以是第一终端发送数据的发送资源池与第二终端接收数据的接收资源池的交集，因此，第一终端发送数据的发送资源池属于第二终端接收数据的接收资源池，即第二终端也可以接收到第一终端发送的数据，确保了第一终端和第二终端之间单播连接通信的可靠性。
需要说明的是，本申请实施例对于步骤S403和步骤S405的先后顺序并不进行限定。
本申请实施例提供的通信方法，通过第二终端向第一终端发送第一侧链路SL载波配置信息；第一终端基于第一BWP配置信息与第二终端进行单播连接通信；第一终端向第二无线接入网设备发送该目标资源池和第一指示信息；无线接入网设备基于目标资源池，选择目标SL资源进行调度。本实施例通过第一终端基于第二终端的第一BWP配置信息与第二终端进行单播连接通信时，由于第一终端发送数据的发送资源池属于第二终端接收数据的接收资源池，第二终端发送数据的发送资源池属于第一终端接收数据的接收资源池，因此确保了第一终端和第二终端之间单播连接通信的可靠性。
如图7所示，为本申请实施例提供的另一种通信方法，若第一终端已获取上述第二BWP配置信息，该通信方法包括步骤S701-S703。
S701、第二终端向第一终端发送第一SL载波配置信息。
可以理解的，步骤S701中第二终端向第一终端发送第一SL载波配置信息的具体实现方式，与步骤S401中第二终端向第一终端发送第一侧链路SL载波配置信息的实现方式相同，具体可以参考步骤S401中的描述，在此不再赘述。
S702、第一终端向第二无线接入网设备发送第一BWP配置信息和第一指示信息。
该第一指示信息用于指示第一终端和第二终端之间的单播连接。
S703、第二无线接入网设备基于第一BWP配置信息，调度目标SL资源。
示例性的，步骤S703可以包括：第二无线接入网设备根据第一BWP配置信息和第二BWP配置信息，调度目标SL资源。
(可选的)第二无线接入网设备可以将第一BWP配置信息和第二BWP配置信息取交集，在该交集的资源中选择目标SL资源。即该目标SL资源既属于第一BWP配置信息中的资源，又属于第二BWP配置信息中的资源。示例性的，第二无线接入网设备在从第一终端的第二BWP配置信息中的发送资源池中确定目标SL资源时，需要考虑第一BWP配置信息中的接收资源池范围，即要保证第二无线接入网设备为第一终端调度的目标SL资源能够被第二终端接收到。
(可选的)第二无线接入网设备可以根据第一BWP配置信息和第二BWP配置信息，获取目标资源池，在该目标资源池内选择目标SL资源。即该目标SL资源可以为目标资源池内的时频资源。该目标资源池用于第一终端和第二终端之间进行单播连接通信。具体，该目标资源池内的发送资源可以用于第一终端向第二终端发送该单播连接的数据和/或信令。该目标资源池内的接收资源可以用于第一终端接收第二终端发送 的该单播连接的数据和/或信令。该目标资源池的具体获取方法可以参考步骤S402中的描述，在此不再赘述。
可以理解的，由于该目标SL资源既属于第一BWP配置信息中的资源，又属于第二BWP配置信息中的资源，因此第一终端在该目标SL资源上与第二终端进行单播连接通信时，第一终端发送数据的发送资源池一定属于第二终端接收数据的接收资源池，因此，确保了第一终端和第二终端之间的单播连接通信的可靠性。
本申请实施例提供的通信方法，通过第二终端向第一终端发送第一侧链路SL载波配置信息；第一终端向第二无线接入网设备发送第一BWP配置信息和第一指示信息；第二无线接入网设备基于第一BWP配置信息，选择目标SL资源进行调度。本实施例中第二无线接入网设备调度的SL资源既属于第一BWP配置信息中的资源，又属于第二BWP配置信息中的资源，因此能够确保第一终端和第二终端之间单播连接通信的可靠性。
如图8所示，为本申请实施例提供的又一种通信方法，若第一终端未获取上述第二BWP配置信息，即第一终端未存储BWP配置信息，在上述步骤S701-S702之后，还可以包括步骤S704-S705。
S704、第二无线接入网设备向第一终端发送第三BWP配置信息。
该第三BWP配置信息与上述第一BWP配置信息对应同一个SL载波。
示例性的，第三BWP配置信息是第二无线接入网设备考虑第二终端的第一BWP配置信息以后为第一终端配置的。即该第三BWP配置信息属于第一SL载波配置信息。
可以理解的，由于第二无线接入网设备接收了第二终端的第一BWP配置信息，因此，第二无线接入网设备可以基于该第二终端的第一BWP配置信息，或者，可以基于第二终端的第一BWP配置信息和第一终端的第三BWP配置信息调度目标SL资源，该目标SL资源在目标资源池的时频域范围内。从而第一终端和第二终端进行单播连接通信时，可以确保第一终端发送数据的目标资源池属于第二终端接收数据的接收资源池，因此，能够给确保单播连接的第一终端和第二终端之间通信的可靠性。
S705、第一终端基于第三BWP配置信息与第二终端进行单播连接通信。
示例性的，第一终端基于第三BWP配置信息与第二终端进行单播连接通信，包括：第一终端根据第一BWP配置信息和第三BWP配置信息，获取SL资源进行上述单播连接通信。该第三BWP配置信息包括一个或多个第三资源池。
示例性的，上述第一终端根据第一BWP配置信息和第三BWP配置信息，获取SL资源进行上述单播连接通信时，该SL资源可以为第一BWP配置信息和第三BWP配置信息中重叠的时频资源。示例性的，该SL资源可以是第三BWP配置信息中的发送资源池与第一BWP配置信息中的接收资源池，在时频域上位置重叠的资源，作为单播连接通信的SL资源；和/或，该SL资源可以时第一BWP配置信息中的发送资源池与第三BWP配置信息中的接收资源池，在时频域上位置重叠的资源，作为单播连接通信的SL资源。故第一终端在该SL资源上与第二终端通信时，该第一终端发送数据的发送资源池属于第二终端接收数据的接收资源池，和/或，第二终端发送数据的发送资源池属于第一终端接收数据的接收资源池，因此，可以确保单播连接的第一终端和第二终端之间通信的可靠性。
(可选的)上述第一终端基于第三BWP配置信息与第二终端进行单播连接通信：第一终端根据第一BWP配置信息和第三BWP配置信息，获取目标资源池，该目标资源池用于第一终端和第二终端进行上述单播连接通信。第一终端基于目标资源池与第二终端进行上述单播连接通信。上述SL资源为该目标资源池内的SL资源。
(可选的)该第一终端可以根据第一BWP配置信息和第三BWP配置信息，将一个或多个第一资源池和一个或多个第三资源池中时频域相同的资源池确定为目标资源池。即该目标资源池既属于第一资源池中的资源池，也属于第三资源池中的资源池。该目标资源池可以理解为是第一资源池和第三资源池的交集，因此第一终端发送数据的发送资源池，属于第二终端接收数据的接收资源池。可以理解的，第一资源池可以是发送资源池，第二资源池可以是接收资源池，或者，第一资源池可以是接收资源池，第二资源池可以是发送资源池。该目标资源池可以为一个BWP内的一个或多个资源池，本申请实施例对此并不进行限定。
示例性的，若发送资源池和接收资源池分开配置。该第一终端可以根据第一BWP配置信息和第三BWP配置信息，将第一BWP配置信息中的接收资源池和第三BWP配置信息中的发送资源池中时频域相同的资源池确定为目标资源池；和/或，将第一BWP配置信息中的发送资源池和第三BWP配置信息中的接收资源池中时频域相同的资源池确定为目标资源池。从而使得，第一终端发送数据的发送资源池，属于第二终端接收数据的接收资源池，和/或，第二终端发送数据的发送资源池，属于第一终端接收数据的接收资源池。
示例性的，本实施例可以适用于第一终端处理连接态的场景。在NR V2X中，第一终端可以采用模式1或模式2获取资源。若第一终端采用模式1，第一终端可以根据第二终端发送的第一BWP配置信息和第一终端接收的第三BWP配置信息进行调度。若第一终端采用模式2，第一终端可以根据第二终端发送的第一BWP配置信息和第一终端接收的第三BWP配置信息自己选择资源。
本申请实施例提供的通信方法，通过第二终端向第一终端发送第一SL载波配置信息；第一终端向第二无线接入网设备发送第一BWP配置信息和第一指示信息；第二无线接入网设备向第一终端发送第三BWP配置信息；第一终端基于第三BWP配置信息与第二终端进行单播连接通信。本实施例通过第二无线接入网设备向第一终端发送第一BWP配置信息对应同一个SL载波的第三BWP配置信息，从而再基于第三BWP配置信息与第二终端进行单播连接通信时，可以使得第一终端发送数据的发送资源池属于第二终端接收数据的接收资源池，和/或，第二终端发送数据的发送资源池属于第一终端接收数据的接收资源池，因此能够确保第一终端和第二终端之间单播连接通信的可靠性。
如图9所示，为本申请实施例提供的又一种通信方法，该通信方法包括步骤S901-S904。
S901、第一终端向第二终端发送第二BWP配置信息。
该第二BWP配置信息属于第一侧链路SL载波配置信息，该第一侧链路为第一终端和第二终端之间的无线通信链路。该第二BWP配置信息包括一个或多个第二资源池。
示例性的，该第二BWP配置信息可以为第二无线接入网设备为第一终端配置的BWP配置信息，也可以为第一终端在第二无线接入网设备广播或预配置的资源中获取的BWP配置信息，本申请实施例对此并不进行限定。
S902、第二终端向第一终端发送第四BWP配置信息。
该第四BWP配置信息与第二BWP配置信息对应同一个SL载波。该第四BWP配置信息属于第一SL载波配置信息。该第四BWP配置信息包括一个或多个目标资源池，该目标资源池用于第一终端和第二终端之间进行单播连接通信。
可以理解的，本实施例中第二终端可以根据第一终端发送的第二BWP配置信息和自己获取的第一BWP配置信息，确定目标资源池，并向第一终端发送该包括目标资源池的第四BWP配置信息。对于第二终端具体确定目标资源池的方式，与步骤S402中第一终端确定目标资源池的方式相同，具体可以参考步骤S402的描述，在此不再赘述。与前述实施例不同的是，本实施例中第二终端可以将其确定的包括目标资源池的第四BWP配置信息发送给第一终端。
S903、第一终端向第二无线接入网设备发送目标资源池和第一指示信息。
可以理解的，步骤S903与步骤S403中第一终端向第二无线接入网设备发送目标资源池和第一指示信息的具体实现方式相同，具体可以参考步骤S403中的描述，在此不再赘述。
S904、第二无线接入网设备基于目标资源池，调度目标SL资源。
可以理解的，步骤S904与步骤S404中第二无线接入网设备基于目标资源池，调度目标SL资源的具体实现方式相同，具体可以参考步骤S404中的描述，在此不再赘述。
本实施例中第二终端发送的第四BWP配置信息为第二终端考虑了第二终端获取的第一BWP配置信息以及第一终端获取的第二BWP配置信息后确定的BWP配置信息，即该第四BWP配置信息包括用于第一终端和第二终端之间进行单播连接通信的一个或多个目标资源池。从而将该包括目标资源池的第四BWP配置信息发送给第二无线接入网设备后，可以作为第二无线接入网设备调度资源的限制，以确保第一终端和第二终端之间通信的可靠性。
本申请实施例提供一种通信方法，通过第一终端向第二终端发送第二BWP配置信息；第二终端向第一终端发送第四BWP配置信息；第一终端向第二无线接入网设备发送目标资源池和第一指示信息；第二无线接入网设备基于目标资源池，选择目标SL资源进行调度。本实施例通过第二终端向第一终端发送包括目标资源池的第四BWP配置信息，第二终端向无线接入网设备发送目标资源池，从而使得第二无线接入网设备调度资源时，可以从目标资源池中选择目标SL资源进行调度，从而使得第一终端发送数据的发送资源池属于第二终端接收数据的接收资源池，和/或，第二终端发送数据的发送资源池属于第一终端接收数据的接收资源池，因此能够确保第一终端和第二终端之间单播连接通信的可靠性。
如图10所示，为本申请实施例提供的又一种通信方法，在前述实施例的基础上，若无线接入网设备调度或配置的资源池为多个，上述方法还包括步骤S1001-S1004。
S1001、第一终端设备接收第二无线接入网设备发送的一个或多个侧链路SL载波 配置信息。
SL载波配置信息包括BWP配置信息，BWP配置信息包括一个或多个资源池。其中一个资源池可以包括一个或多个子信道，一个BWP内不同资源池包括的子信道的数量可以相同也可以不同，本申请实施例对此并不进行限定。
S1002、第一终端接收第二无线接入网设备发送的下行控制信息DCI。
DCI包括第一指示信息，第一指示信息用于指示一个或多个SL载波中的第一SL载波上的时频资源，该第一SL载波为第二无线接入网设备调度的SL载波。
第一SL载波上的时频资源包括一个BWP内的一个或多个资源池的时频资源。即无线接入网设备调度的时频资源可以涉及多个资源池。
示例性的，第一指示信息包括第二指示信息和第三指示信息，该第二指示信息用于指示第一SL载波，第三指示信息包括无线接入网设备调度的子信道的最小索引。即该第二指示信息指示的是无线接入网设备调度的SL载波，第三指示信息用于指示第一SL载波上的时频资源占用的索引最小的子信道。
S1003、第一终端根据第一指示信息，在第一SL载波的时频资源上向第二终端发送数据。
一种实现方式中，第一终端被配置的子信道在资源池内独立编号。在该实现方式中，第一指示信息还包括第四指示信息，第四指示信息用于指示无线接入网设备调度的资源池。
在该实现方式中，步骤S903中根据第一指示信息，在第一SL载波的时频资源上向第二终端发送数据，可以包括：根据第一指示信息包括的第二指示信息、第三指示信息和第四指示信息确定无线接入网设备调度的子信道，在该无线接入网设备调度的子信道上向第二终端发送数据。示例性的，由于该实现方式中，子信道在资源池内独立编号，即不同资源池的子信道的编号可以重复，因此，可以先根据第二指示信息确定无线接入网设备调度的第一SL载波，然后根据第四指示信息确定无线接入网设备调度的资源池，再根据第三指示信息确定无线接入网设备调度的子信道的最小索引，从而可以确定无线接入网设备调度的具体时频资源位置，并在该时频资源上向第二终端发送数据。
(可选的)另一种实现方式中，在上述步骤S1003之前，上述方法还包括步骤S1004。
S1004、第一终端对BWP配置信息中的一个或多个资源池的子信道，从低频至高频统一编号。
示例性的，如图11所示，若BWP配置信息包括两个资源池(resource pool，RP)，分别记为RP1和RP2，其中，RP1包括1个子信道，RP2包括2个子信道，UE可以对一个BWP内的3个子信道跨资源池从低频至高频统一编号，如图11所示，分别为子信道1、子信道2和子信道3。
在该实现方式中，第一终端根据第一指示信息，在第一SL载波的时频资源上向第二终端发送数据可以包括：根据第一指示信息包括的第二指示信息、第三指示信息确定无线接入网设备调度的子信道，在该无线接入网设备调度的子信道上向第二终端发送数据。示例性的，由于该实现方式中，子信道跨资源池统一编号，即不同资源池的子信道的编号统一，因此，可以先根据第二指示信息确定无线接入网设备调度的第 一SL载波，然后根据第三指示信息确定无线接入网设备调度的子信道的最小索引，从而可以确定无线接入网设备调度的具体时频资源位置，并在该时频资源上向第二终端发送数据。
本申请实施例提供的通信方法，通过第一终端设备接收第二无线接入网设备发送的一个或多个侧链路SL载波配置信息；第一终端接收第二无线接入网设备发送的下行控制信息DCI；第一终端根据第一指示信息，在第一SL载波的时频资源上向第二终端发送数据。本实施例能够在一个BWP包括多个资源池时，准确的向UE指明具体的时频资源位置。
如图12所示，为本申请实施例提供的又一种通信方法，该方法还包括步骤S1201-S1202。
S1201、终端接收无线接入网设备发送的第一信息。
该第一信息包括一个或多个第一SL载波配置信息。第一SL载波配置信息包括第一BWP配置信息，第一BWP配置信息包括一个或多个第一资源池。
该终端处于空闲态(IDLE)或去激活态(INACTIVE)，上述第一信息可以携带在无线接入网设备的广播消息中。例如，无线接入网设备可以通过广播消息向一个或多个终端广播第一SL载波配置信息，但由于不同终端的能力及订阅的业务或者感兴趣的业务可能不同，即该广播的第一SL载波配置信息不一定适用于每个终端。
S1202、终端从一个或多个第一SL载波配置信息中，选择第二SL载波配置信息。
第二SL载波为第一SL载波中的一个或多个载波。第二SL载波配置信息包括第二BWP配置信息，第二BWP配置信息包括一个或多个第二资源池，该第二资源池为上述第一资源池中的资源池。
示例性的，终端可以从一个或多个第一SL载波配置信息中选择其感兴趣的业务对应的至少一个频点，确定第二SL载波配置信息。
示例性的，终端可以根据自己的射频能力，选择不超过(小于或等于)该终端支持的最大带宽的第二SL载波配置信息。
示例性的，上述第一信息中还可以包括信道繁忙率(Channel busy ratio，CBR)门限值，该CBR门限值可以是不区分频点，也可以是每个频点对应一个CBR门限值。此时，终端可以根据CBR门限值选择测量结果大于或大于等于该门限值的资源池为第二资源池。
示例性的，上述第一信息中还可以包括第一SL载波对应的业务优先级，该业务优先级可以是无线接入网设备从核心网设备的V2X控制功能CF单元中获取的。或者，终端可以基于业务的服务质量(Quality of Service，QoS)来确定业务优先级。此时，当UE的能力不足以覆盖所有感兴趣的频点对应的资源池时，可以优先选择业务优先级较高的业务对应的频点。
示例性的，终端在选择资源池时，可以优先选择预配置的资源池进行通信。
本申请实施例对于终端从一个或多个第一SL载波配置信息中如何确定第二SL载波配置信息的具体方法并不进行限定，上述仅是示例性说明。
可以理解的，本实施例终端可以基于无线接入网设备广播的BWP配置和各种因素，进一步对无线接入网设备广播的BWP配置进行选择，确定自己真正使用的BWP， 以保证业务传输的可靠性。
本实施例提供的通信方法，通过终端接收无线接入网设备发送的第一信息；终端根据预设条件，从一个或多个第一SL载波配置信息中，确定第二SL载波配置信息。本实施例通过在无线接入网设备广播的BWP配置中选择自己真正使用的BWP，保证了业务传输的可靠性。
上述主要从方法步骤的角度对本申请实施例提供的方案进行了介绍。可以理解的是，计算机为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的模块及算法步骤，本申请能够以硬件和计算机软件的结合形式来实现。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。
本申请实施例可以根据上述方法示例对计算机进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，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。
在采用对应各个功能划分各个功能模块的情况下，图13示出了上述实施例中所涉及的终端的一种可能的结构示意图，该终端1300包括：收发模块1301、处理模块1302。收发模块1301可以用于支持终端1300执行图5中的S403、或图6中的S405、或图7中的S702、或图9中的S901和S903、或图10中的S1001-S1002，或图12中的S1201；处理模块1302可以用于支持终端1300执行图4中的S402、或图5中的S402、或图10中的S1003和S1004、或图12中的S1202。可以理解的，收发模块1301还用于收发信息，或者用于与其他网元(例如，其他终端或无线接入网设备)通信，和/或用于本文所描述的技术的其它过程。其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在采用对应各个功能划分各个功能模块的情况下，图14示出了上述实施例中所涉及的无线接入网设备的一种可能的结构示意图，该无线接入网设备1400包括：收发模块1401、处理模块1402。收发模块1401可以用于支持无线接入网设备1400执行图8中的S704；处理模块1402可以用于支持无线接入网设备1400执行图5中的S404、或图7中的S703、或图9中的S904。可以理解的，收发模块1401还用于收发信息，或者用于与其他网元(例如，终端)通信，和/或用于本文所描述的技术的其它过程。其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在采用集成的单元的情况下，图15示出了上述实施例中所涉及的终端1500的一种可能的结构示意图。该终端1500包括：处理器1501和收发器1502，该处理器1501用于对终端1500的动作进行控制管理，例如，处理器1501用于支持终端1500执行图4中的S402、或图5中的S402、或图10中的S1003和S1004、或图12中的S1202，和/或用于本文所描述的技术的其它过程。该收发器1502用于支持终端1500执行图5中的S403、或图6中的S405、或图7中的S702、或图9中的S901和S903、或图10 中的S1001-S1002，或图12中的S1201。该收发器1502还用于收发信息，或者用于与其他网元(例如，终端)通信，和/或用于本文所描述的技术的其它过程。可选的，上述终端1500还可以包括存储器1503，该存储器1503用于存储终端1500执行上文所提供的任一通信方法所对应的程序代码和数据。该存储器1503可以为只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。该终端1500可以为图3所示的终端设备，上述图3涉及的各部件的所有相关内容的描述均可以援引到图15对应部件的功能描述，在此不再赘述。
在采用集成的单元的情况下，图16示出了上述实施例中所涉及的无线接入网设备1600的一种可能的结构示意图。该无线接入网设备1600包括：处理器1601和收发器1602，该处理器1601用于对无线接入网设备1600的动作进行控制管理，例如，处理器1601用于支持无线接入网设备1600执行图5中的S404、或图7中的S703、或图9中的S904，和/或用于本文所描述的技术的其它过程。该收发器1602用于支持无线接入网设备1600执行图8中的S704。该收发器1602还用于收发信息，或者用于与其他网元(例如，终端)通信，和/或用于本文所描述的技术的其它过程。可选的，上述无线接入网设备1600还可以包括存储器1603，该存储器1603用于存储无线接入网设备1600执行上文所提供的任一通信方法所对应的程序代码和数据。该存储器1603可以为只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。
结合本申请公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(Random Access Memory，RAM)、闪存、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于核心网接口设备中。当然，处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请的保护范围之内。

Claims (50)

  1. 一种通信方法，其特征在于，所述方法包括：
    第一终端接收第二终端发送的第一侧链路SL载波配置信息；所述第一侧链路为所述第一终端和所述第二终端之间的无线通信链路；所述第一SL载波配置信息包括第一带宽部分BWP配置信息，所述第一BWP配置信息包括一个或多个第一资源池；
    所述第一终端基于所述第一BWP配置信息与所述第二终端进行单播连接通信。
  2. 根据权利要求1所述的通信方法，其特征在于，所述第一SL载波为所述单播连接对应的载波。
  3. 根据权利要求1或2所述的通信方法，其特征在于，所述第一终端基于所述第一BWP配置信息与所述第二终端进行单播连接通信，包括：
    所述第一终端根据所述第一BWP配置信息和第二BWP配置信息，获取目标资源池，所述目标资源池用于所述第一终端和所述第二终端进行所述单播连接通信；所述第二BWP配置信息属于所述第一SL载波配置信息，所述第二BWP配置信息包括一个或多个第二资源池；
    所述第一终端基于所述目标资源池与所述第二终端进行所述单播连接通信。
  4. 根据权利要求1或2所述的通信方法，其特征在于，所述第一终端基于所述第一BWP配置信息与所述第二终端进行单播连接通信，包括：
    所述第一终端向无线接入网设备发送所述第一BWP配置信息和第一指示信息；所述第一指示信息用于指示所述单播连接。
  5. 根据权利要求4所述的通信方法，其特征在于，所述方法还包括：
    所述第一终端接收所述无线接入网设备发送的第三BWP配置信息，所述第三BWP配置信息与所述第一BWP配置信息对应同一个SL载波；
    所述第一终端基于所述第三BWP配置信息与所述第二终端进行所述单播连接通信。
  6. 根据权利要求1所述的通信方法，其特征在于，所述第一资源池为目标资源池，所述目标资源池用于所述第一终端和所述第二终端进行所述单播连接通信。
  7. 根据权利要求1-6中任一项所述的通信方法，其特征在于，所述方法还包括：
    所述第一终端向所述第二终端发送第二BWP配置信息。
  8. 根据权利要求3或6所述的通信方法，其特征在于，所述方法还包括：
    所述第一终端向无线接入网设备发送所述目标资源池和第一指示信息，所述第一指示信息用于指示所述单播连接。
  9. 根据权利要求3所述的通信方法，其特征在于，所述方法还包括：
    所述第一终端向所述第二终端发送所述目标资源池。
  10. 一种通信方法，其特征在于，所述方法包括：
    无线接入网设备接收第一终端发送的第一带宽部分BWP配置信息和第一指示信息；所述第一BWP配置信息属于第一侧链路SL载波配置信息，所述第一侧链路为所述第一终端和第二终端之间的无线通信链路；所述第一BWP配置信息为所述第二终端的BWP配置信息，所述第一BWP配置信息包括一个或多个第一资源池；所述第一指示信息用于指示所述第一终端和所述第二终端之间的单播连接；
    所述无线接入网设备基于所述第一BWP配置信息，调度目标SL资源，所述目标SL资源为目标资源池内的时频资源；所述目标资源池用于所述第一终端和所述第二终端进行所述单播连接通信。
  11. 根据权利要求10所述的通信方法，其特征在于，所述方法还包括：
    所述无线接入网设备基于所述第一BWP配置信息，获取第二BWP配置信息；所述第二BWP配置信息与所述第一BWP配置信息对应同一个SL载波；
    所述无线接入网设备向所述第一终端发送所述第二BWP配置信息。
  12. 根据权利要求10所述的通信方法，其特征在于，所述第一资源池为所述目标资源池。
  13. 一种通信装置，其特征在于，所述通信装置包括：处理模块和收发模块；
    所述收发模块，用于接收第二终端发送的第一侧链路SL载波配置信息；所述第一侧链路为所述通信装置和所述第二终端之间的无线通信链路；所述第一SL载波配置信息包括第一带宽部分BWP配置信息，所述第一BWP配置信息包括一个或多个第一资源池；
    所述处理模块，用于通过所述收发模块基于所述第一BWP配置信息与所述第二终端进行单播连接通信。
  14. 根据权利要求13所述的通信装置，其特征在于，所述第一SL载波为所述单播连接对应的载波。
  15. 根据权利要求13或14所述的通信装置，其特征在于，所述处理模块具体用于：
    根据所述第一BWP配置信息和第二BWP配置信息，获取目标资源池，所述目标资源池用于所述通信装置和所述第二终端进行所述单播连接通信；所述第二BWP配置信息属于所述第一SL载波配置信息，所述第二BWP配置信息包括一个或多个第二资源池；
    通过所述收发模块基于所述目标资源池与所述第二终端进行所述单播连接通信。
  16. 根据权利要求13或14所述的通信装置，其特征在于，
    所述收发模块，还用于向无线接入网设备发送所述第一BWP配置信息和第一指示信息；所述第一指示信息用于指示所述单播连接。
  17. 根据权利要求16所述的通信装置，其特征在于，
    所述收发模块，还用于接收所述无线接入网设备发送的第三BWP配置信息，所述第三BWP配置信息与所述第一BWP配置信息对应同一个SL载波；
    所述处理模块，具体用于通过所述收发模块基于所述第三BWP配置信息与所述第二终端进行所述单播连接通信。
  18. 根据权利要求13所述的通信装置，其特征在于，所述第一资源池为目标资源池，所述目标资源池用于所述通信装置和所述第二终端进行所述单播连接通信。
  19. 根据权利要求13-18中任一项所述的通信装置，其特征在于，
    所述收发模块，还用于向所述第二终端发送第二BWP配置信息。
  20. 根据权利要求15或18所述的通信装置，其特征在于，
    所述收发模块，还用于向无线接入网设备发送所述目标资源池和第一指示信息， 所述第一指示信息用于指示所述单播连接。
  21. 根据权利要求15所述的通信装置，其特征在于，
    所述收发模块，还用于向所述第二终端发送所述目标资源池。
  22. 一种通信装置，其特征在于，所述通信装置包括：收发模块和处理模块；
    所述收发模块，用于接收第一终端发送的第一带宽部分BWP配置信息和第一指示信息；所述第一BWP配置信息属于第一侧链路SL载波配置信息，所述第一侧链路为所述第一终端和第二终端之间的无线通信链路；所述第一BWP配置信息为所述第二终端的BWP配置信息，所述第一BWP配置信息包括一个或多个第一资源池；所述第一指示信息用于指示所述第一终端和所述第二终端之间的单播连接；
    所述处理模块，用于基于所述第一BWP配置信息，调度目标SL资源，所述目标SL资源为目标资源池内的时频资源；所述目标资源池用于所述第一终端和所述第二终端进行所述单播连接通信。
  23. 根据权利要求22所述的通信装置，其特征在于，
    所述处理模块，具体用于基于所述第一BWP配置信息，获取第二BWP配置信息；所述第二BWP配置信息与所述第一BWP配置信息对应同一个SL载波；
    所述收发模块，还用于向所述第一终端发送所述第二BWP配置信息。
  24. 根据权利要求22所述的通信装置，其特征在于，所述第一资源池为所述目标资源池。
  25. 一种通信方法，其特征在于，所述方法包括：
    第一终端接收无线接入网设备发送的一个或多个侧链路SL载波配置信息，所述SL载波配置信息包括带宽部分BWP配置信息，所述BWP配置信息包括一个或多个资源池；一个资源池包括一个或多个子信道；
    所述第一终端接收所述无线接入网设备发送的下行控制信息DCI，所述DCI包括第一指示信息，所述第一指示信息用于指示所述一个或多个SL载波中的第一SL载波上的时频资源，所述第一SL载波为所述无线接入网设备调度的SL载波；
    所述第一终端根据所述第一指示信息，在所述时频资源上向第二终端发送数据。
  26. 根据权利要求25所述的通信方法，其特征在于，所述第一指示信息包括第二指示信息和第三指示信息，所述第二指示信息用于指示所述第一SL载波，所述第三指示信息包括所述无线接入网设备调度的子信道的最小索引。
  27. 根据权利要求25或26所述的通信方法，其特征在于，所述第一终端被配置的子信道在资源池内独立编号；所述第一指示信息还包括第四指示信息，所述第四指示信息用于指示所述无线接入网设备调度的资源池。
  28. 根据权利要求25或26所述的通信方法，其特征在于，所述方法还包括：
    所述第一终端对所述BWP配置信息中的一个或多个资源池的子信道，从低频至高频统一编号。
  29. 根据权利要求25-28中任一项所述的通信方法，其特征在于，所述时频资源包括所述BWP配置信息中的一个或多个资源池的时频资源。
  30. 一种通信装置，其特征在于，所述通信装置包括：
    收发模块，用于接收无线接入网设备发送的一个或多个侧链路SL载波配置信息， 所述SL载波配置信息包括带宽部分BWP配置信息，所述BWP配置信息包括一个或多个资源池；一个资源池包括一个或多个子信道；
    所述收发模块，还用于接收所述无线接入网设备发送的下行控制信息DCI，所述DCI包括第一指示信息，所述第一指示信息用于指示所述一个或多个SL载波中的第一SL载波上的时频资源，所述第一SL载波为所述无线接入网设备调度的SL载波；
    处理模块，用于根据所述第一指示信息，通过所述收发模块在所述时频资源上向第二终端发送数据。
  31. 根据权利要求30所述的通信装置，其特征在于，所述第一指示信息包括第二指示信息和第三指示信息，所述第二指示信息用于指示所述第一SL载波，所述第三指示信息包括所述无线接入网设备调度的子信道的最小索引。
  32. 根据权利要求30或31所述的通信装置，其特征在于，所述通信装置被配置的子信道在资源池内独立编号；所述第一指示信息还包括第四指示信息，所述第四指示信息用于指示所述无线接入网设备调度的资源池。
  33. 根据权利要求30或31所述的通信装置，其特征在于，所述处理模块，还用于对所述BWP配置信息中的一个或多个资源池的子信道，从低频至高频统一编号。
  34. 根据权利要求30-33中任一项所述的通信装置，其特征在于，所述时频资源包括所述BWP配置信息中的一个或多个资源池的时频资源。
  35. 一种通信方法，其特征在于，所述方法包括：
    终端接收无线接入网设备发送的第一信息，所述第一信息包括一个或多个第一侧链路SL载波配置信息；所述第一SL载波配置信息包括第一带宽部分BWP配置信息，所述第一BWP配置信息包括一个或多个第一资源池；
    所述终端从所述一个或多个第一SL载波配置信息中，选择第二SL载波配置信息；所述第二SL载波为所述一个或多个第一SL载波中的载波，所述第二SL载波配置信息包括第二BWP配置信息，所述第二BWP配置信息包括一个或多个第二资源池。
  36. 根据权利要求35所述的通信方法，其特征在于，所述第一信息还包括信道繁忙率CBR门限值，所述第二资源池为所述第一资源池中CBR测量值大于或等于所述CBR门限值的资源池。
  37. 根据权利要求35或36所述的通信方法，其特征在于，所述第一信息还包括所述第一SL载波对应的业务优先级，所述第二SL载波为所述第一SL载波中业务优先级高于预设阈值的业务对应的SL载波。
  38. 根据权利要求35-37中任一项所述的通信方法，其特征在于，所述第一信息携带在广播消息中。
  39. 一种通信装置，其特征在于，所述通信装置包括：
    收发模块，用于接收无线接入网设备发送的第一信息，所述第一信息包括一个或多个第一侧链路SL载波配置信息；所述第一SL载波配置信息包括第一带宽部分BWP配置信息，所述第一BWP配置信息包括一个或多个第一资源池；
    处理模块，用于从所述一个或多个第一SL载波配置信息中，选择第二SL载波配置信息；所述第二SL载波为所述一个或多个第一SL载波中的载波，所述第二SL载波配置信息包括第二BWP配置信息，所述第二BWP配置信息包括一个或多个第二资 源池。
  40. 根据权利要求39所述的通信装置，其特征在于，所述第一信息还包括信道繁忙率CBR门限值，所述第二资源池为所述第一资源池中CBR测量值大于或等于所述CBR门限值的资源池。
  41. 根据权利要求39或40所述的通信装置，其特征在于，所述第一信息还包括所述第一SL载波对应的业务优先级，所述第二SL载波为所述第一SL载波中业务优先级高于预设阈值的业务对应的SL载波。
  42. 根据权利要求39-41中任一项所述的通信装置，其特征在于，所述第一信息携带在广播消息中。
  43. 一种计算机存储介质，所述计算机存储介质中具有计算机程序代码，其特征在于，当所述计算机程序代码在处理器上运行时，使得所述处理器执行如权利要求1-9中任一项所述的通信方法。
  44. 一种计算机存储介质，所述计算机存储介质中具有计算机程序代码，其特征在于，当所述计算机程序代码在处理器上运行时，使得所述处理器执行如权利要求10-12中任一项所述的通信方法。
  45. 一种计算机存储介质，所述计算机存储介质中具有计算机程序代码，其特征在于，当所述计算机程序代码在处理器上运行时，使得所述处理器执行如权利要求25-29中任一项所述的通信方法。
  46. 一种计算机存储介质，所述计算机存储介质中具有计算机程序代码，其特征在于，当所述计算机程序代码在处理器上运行时，使得所述处理器执行如权利要求35-38中任一项所述的通信方法。
  47. 一种通信装置，其特征在于，所述通信装置包括：
    收发器，用于收发信息，或者用于与其他网元通信；
    处理器，用于执行计算机程序指令，以实现如权利要求1-9中任一项所述的通信方法。
  48. 一种通信装置，其特征在于，所述通信装置包括：
    收发器，用于收发信息，或者用于与其他网元通信；
    处理器，用于执行计算机程序指令，以实现如权利要求10-12中任一项所述的通信方法。
  49. 一种通信装置，其特征在于，所述通信装置包括：
    收发器，用于收发信息，或者用于与其他网元通信；
    处理器，用于执行计算机程序指令，以实现如权利要求25-29中任一项所述的通信方法。
  50. 一种通信装置，其特征在于，所述通信装置包括：
    收发器，用于收发信息，或者用于与其他网元通信；
    处理器，用于执行计算机程序指令，以实现如权利要求35-38中任一项所述的通信方法。
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