WO2020063519A1 - 配置旁链路资源的方法和装置 - Google Patents

配置旁链路资源的方法和装置 Download PDF

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Publication number
WO2020063519A1
WO2020063519A1 PCT/CN2019/107240 CN2019107240W WO2020063519A1 WO 2020063519 A1 WO2020063519 A1 WO 2020063519A1 CN 2019107240 W CN2019107240 W CN 2019107240W WO 2020063519 A1 WO2020063519 A1 WO 2020063519A1
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WO
WIPO (PCT)
Prior art keywords
frequency domain
parameter
subchannel
bwp
resource pool
Prior art date
Application number
PCT/CN2019/107240
Other languages
English (en)
French (fr)
Inventor
王婷
唐浩
李新县
唐臻飞
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19866033.4A priority Critical patent/EP3843439A4/en
Priority to BR112021005840-0A priority patent/BR112021005840A2/pt
Publication of WO2020063519A1 publication Critical patent/WO2020063519A1/zh
Priority to US17/214,000 priority patent/US11937223B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—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 present application relates to the field of communications, and more particularly, to a method and apparatus for configuring side link resources.
  • BWP bandwidth part
  • NR new wireless
  • BWP bandwidth part
  • Network devices can configure one or more BWPs for terminal devices.
  • Terminal devices can communicate with network devices on BWPs activated in one or more BWPs. .
  • the above scheme only considers the communication between the terminal device and the network device when configuring the BWP, and does not consider the side-link (SL) communication between different terminal devices. Therefore, there is a need to provide a technology on how to configure BWP so that different terminal devices can communicate.
  • This application provides a method and device for configuring side-link resources, which can implement communication between different terminal devices.
  • a method for configuring side-link resources includes: a first parameter of a terminal device, the first parameter being a parameter common to M resource pools in the SLBWP, and a frequency of the M resource pools.
  • the domain resource is located in the SLBWP, and M is an integer greater than or equal to 1.
  • the terminal device is configured with the M resource pools, and the M resource pools are configured with the same at least one parameter, and the at least one parameter is determined based on the first parameter.
  • the first parameter may be a parameter commonly used in the actual communication process of the terminal device using the M resource pools.
  • the at least one parameter is the first parameter.
  • the first parameter is a BWP level parameter, and is applicable to all resource pools in one SL BWP, and the parameter characteristics of all resource pools in one SL BWP are the same.
  • the frequency domain resources of any two resource pools in the M resource pools may completely overlap, may not overlap, or may partially overlap.
  • a terminal device can configure a resource pool for side-link communication of the terminal device in SL BWP, and acquire resources used in SL BWP through SL BWP configuration information
  • the first parameter common to the pools is such that at least one parameter determined based on the first parameter is applicable to the resource pool in the SL / BWP, that is, at least one parameter of the resource pool configured in the SL / BWP is the same. In this way, by configuring a resource pool in SL BWP, communication between different terminal devices can be achieved.
  • the embodiment of the present application may not need to configure one resource pool signaling for each resource pool, but configure SLWPB configuration information for indicating a first parameter common to the resource pool in the SLWP, that is, for the first One parameter can be uniformly designed for the resource pool in SL BWP, which conforms to the concept of BWP, and the design is simple. Especially in the case where SL BWP includes multiple resource pools, the signaling overhead can be effectively reduced.
  • the obtaining, by the terminal device, the first parameter includes:
  • the terminal device receives SL BWP configuration information, and the SL BWP configuration information is used to indicate the first parameter.
  • the first parameter includes at least one of the following: a waveform, an uplink and downlink configuration of a frame structure, or a parameter set, where the parameter set includes a subcarrier interval and / or a cyclic prefix CP.
  • the parameter set can be understood as a frame structure parameter, which is a set of parameters used to represent the frame structure. It can include at least one of the subcarrier interval or the CP, and can also include the number of symbols included in a subframe or a slot. parameter.
  • the first parameter may further include at least:
  • PSCCH-PSSCH Adjacency PSCCH-PSSCH, The characteristics of whether the PSCCH and PSSCH of all resource pools in a SLBWP are always adjacent can be the same.
  • the parameter sync ConfigIndex used to indicate synchronization configuration that is, the synchronization configuration parameters of all resource pools in a SLBWP can be the same.
  • the parameter SL-Sync used to indicate the allowed synchronization type is Allowed, that is, the parameters of the allowed synchronization types of all resource pools in a SLBWP may be the same.
  • the synchronization type may include synchronization types such as satellite synchronization, base station synchronization, and terminal device synchronization.
  • the zone ID ZoneID used to indicate the zone can be the same.
  • the area may be an area divided according to a geographical position, and a specific area division may be predefined or configured to a terminal device through a network device.
  • the area identifier is used to identify an area.
  • the terminal device configures the M resource pools, including:
  • the terminal device determines the frequency domain positions of the M resource pools according to the bandwidth size of the SL BWP and the starting frequency domain unit of the SL BWP.
  • the terminal device can determine the frequency domain positions of the M resource pools according to the bandwidth size of the SLBWP and the starting frequency domain unit of the SLBWP, avoiding the signaling indicating the resource pool. Position in the frequency domain, reducing the indication overhead.
  • the resource pool located at SL / BWP facilitates the coexistence of sidelink transmission and Uu air interface (universal UE to network interface) transmission.
  • the Uu air interface is used for communication between network equipment and terminal equipment.
  • the bandwidth of the SLBWP can correspond to the radio frequency bandwidth of the terminal. By configuring multiple SLBWPs, it can support multiple radio frequency bandwidth capabilities. Different parameters (for example, frame structure parameters) can be configured for each SL and BWP, which can support flexible parameter configuration.
  • different SL / BWP bandwidth size configurations can also achieve the effect of energy saving of terminal equipment.
  • the ith resource pool of the M resource pools includes N subchannels, where N is an integer greater than or equal to 1, i ⁇ [1, M], and;
  • the terminal device configures the frequency domain positions of the M resource pools according to the bandwidth of the SL BWP and the starting frequency domain unit of the SL BWP, including:
  • the terminal device configures the i-th resource pool frequency domain position according to a second parameter, where the second parameter includes:
  • At least one of the bandwidth of the subchannel or the number N of subchannels included in the i-th resource pool, the starting frequency domain unit of the first subchannel in the N subchannels, and the first subchannel is in the N
  • the frequency domain position in each subchannel is the lowest or highest.
  • the second parameter is a dedicated parameter configured by the terminal device for each resource pool
  • the M resource pools may correspond to the M second parameters, and each resource pool is determined by the corresponding second parameter.
  • the bandwidth of the subchannel may be a reference value, and may be used to determine the bandwidth of each subchannel.
  • the reference value may be a bandwidth size of at least a part of the subchannels, where the bandwidth size of at least a part of the subchannels indicates a bandwidth size of all the subchannels or a bandwidth size of a part of the subchannels.
  • the terminal device determines a frequency domain position of each resource pool by using a parameter (for example, a second parameter) related to a subchannel, which can avoid directly configuring the resource pool.
  • a parameter for example, a second parameter
  • the relevant parameters of the sub-channel can determine the sub-channel, and the sub-channel can not only reduce the indication overhead of transmission resources in subsequent control information, but also determine the resource pool.
  • the method further includes:
  • the terminal device receives instruction information used to indicate the second parameter.
  • a network device indicates a parameter (for example, a second parameter) related to the subchannel through signaling.
  • a subchannel may include one or more resource blocks.
  • the direct indication mode of the resource block can reduce the indication overhead of transmission resources.
  • the i-th resource pool is the first resource pool of the M resource pools, and the start frequency domain unit of the first subchannel in the first resource pool is the start of the SL BWP A frequency domain unit, where the first resource pool has the lowest or highest frequency domain position among the M resource pools; and / or,
  • the bandwidth of the subchannel is determined based on a mapping relationship between the bandwidth of the SLWP and the bandwidth of the subchannel.
  • the bandwidth size of the SL BWP is determined by an interval of the bandwidth size of the SL BWP.
  • the method for configuring side-link resources in the embodiment of the present application determines the starting frequency domain unit of the SLBWP as the starting frequency domain unit of the first subchannel of the first resource pool in the M resource pools. It is possible to avoid indicating the starting frequency domain unit of the first subchannel and reduce the signaling overhead. At the same time, the starting resource unit of SLBWP is used as the starting resource unit of the first subchannel. It can also make full use of SLBWP resources to avoid wasting resources. By mapping between SLBWP bandwidth and subchannel bandwidth The relationship determines the size of the subchannel, which can avoid indicating the bandwidth of the subchannel, and can reduce signaling overhead. By determining the bandwidth of the subchannel according to the bandwidth of the SLBWP, the bandwidth of different subchannels can be determined according to the bandwidth of the SLBWP, and the number of subchannels can be avoided, and the subchannel design can be performed reasonably.
  • the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the SL BWP by K 1 frequency domain unit, and K 1 is an integer greater than or equal to 0.
  • the reference positions of the starting frequency domain units of all the subchannels including the first subchannel are the starting frequency domain units of the SLBWP.
  • the value of the index generated by the system based on this method can be made smaller. Accordingly, the bits occupied by the index are also relatively small. less. In the case where the frequency domain unit in the SL / BWP is indicated by the index, the occupied bits can be effectively reduced, thereby saving resources.
  • the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the first carrier by K 2 frequency domain units, and the first carrier is a carrier to which the i-th resource pool belongs.
  • K 2 is an integer greater than or equal to 0.
  • the reference positions of the start frequency domain units of all subchannels including the first subchannel are the start frequency domain units of the carrier.
  • an index value of a start frequency domain unit of the first subchannel is a frequency domain unit of a start frequency domain unit of the first subchannel that is offset from a start frequency domain unit of the first carrier. Quantity.
  • the first parameter includes the subcarrier interval
  • the terminal device is configured with the M resource pools, including:
  • the terminal device configures the M resource pools according to the subcarrier interval.
  • the remaining parameters (for example, the second parameter) obtained for configuring the resource pool obtained by the terminal device are parameters corresponding to the subcarrier interval.
  • the second parameter is determined based on a bandwidth size of the SL BWP and a starting frequency domain unit of the SL BWP.
  • the M resource pools are all sending resource pools;
  • the M resource pools are all receiving resource pools; or
  • the method further includes:
  • the indexes of the M resource pools are determined based on the number of resource pools included in the SL BWP, or,
  • the indexes of the M resource pools are determined based on the number of resource pools included in the first carrier, and the first carrier is a carrier to which the SLBWP belongs.
  • the method further includes:
  • the terminal device sends or receives index information indicating an index of the M resource pools.
  • a method for configuring side-link resources includes:
  • the network device sends the SLW BWP configuration information of the side link bandwidth.
  • the SLBWP configuration information includes a first parameter.
  • the first parameter is a parameter common to the M resource pools configured in the SL BWP, and the frequency domain resources of the M resource pools.
  • M is an integer greater than or equal to 1.
  • the network device can send the terminal device with SLWP configuration information including the first parameter common to the resource pool, so that the terminal device can configure the resource pool in the SLBWP.
  • At least one parameter determined based on the first parameter is applicable to the resource pool in the SL BWP, that is, at least one parameter of the resource pool configured in the SL BWP is the same.
  • the terminal device can be configured with a resource pool in the SLWP, and communication between different terminal devices can be realized.
  • the first parameter includes at least one of the following: a waveform, an uplink and downlink configuration of a frame structure, or a parameter set, where the parameter set includes a subcarrier interval and / or a cyclic prefix CP.
  • the i-th resource pool of the M resource pools includes N subchannels, where N is an integer greater than or equal to 1, and i ⁇ [1, M].
  • the method further includes:
  • the network device sends instruction information for indicating a second parameter, where the second parameter includes:
  • At least one of the bandwidth of the subchannel and the number N of subchannels included in the i-th resource pool, the starting frequency domain unit of the first subchannel in the N subchannels, and the first subchannel is in the The frequency domain position among the N subchannels is lowest or highest.
  • the terminal device determines a frequency domain position of each resource pool by using a parameter (for example, a second parameter) related to a subchannel, which can avoid directly configuring the resource pool.
  • a parameter for example, a second parameter
  • the relevant parameters of the sub-channel can determine the sub-channel, and the sub-channel can both reduce the indication overhead (for example, the indication information) of the transmission resource and determine the resource pool.
  • the i-th resource pool is the first resource pool of the M resource pools, and the start frequency domain unit of the first subchannel in the first resource pool is the start of the SL BWP A frequency domain unit, where the first resource pool has the lowest or highest frequency domain position among the M resource pools; and / or,
  • the bandwidth of the subchannel is determined based on a mapping relationship between the bandwidth of the SLWP and the bandwidth of the subchannel.
  • the starting frequency domain unit of the SL BWP is determined as the starting frequency domain unit of the first subchannel of the first resource pool in the M resource pools, and it is possible to avoid indicating the starting frequency domain unit of the first subchannel.
  • the starting resource unit of SLBWP is used as the starting resource unit of the first subchannel. It can also make full use of SLBWP resources to avoid wasting resources.
  • mapping between SLBWP bandwidth and subchannel bandwidth The relationship determines the size of the subchannel, which can avoid indicating the bandwidth of the subchannel, and can reduce signaling overhead.
  • the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the SL BWP by K 1 frequency domain unit, and K 1 is an integer greater than or equal to 0.
  • the value of the index generated by the system based on this method can be made smaller. Accordingly, the bits occupied by the index are also relatively small. less. In the case where the frequency domain unit in the SL / BWP is indicated by the index, the occupied bits can be effectively reduced, thereby saving resources.
  • the index value of the starting frequency domain unit of the first subchannel is the number of frequency domain units that the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the SLWP.
  • the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the first carrier by K 2 frequency domain units, and the first carrier is a carrier to which the i-th resource pool belongs.
  • K 2 is an integer greater than or equal to 0.
  • the index of the starting frequency domain unit of the first subchannel is the number of frequency domain units that the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the first carrier. .
  • the second parameter is determined based on a bandwidth size of the SL BWP and a starting frequency domain unit of the SL BWP.
  • the M resource pools are all sending resource pools;
  • the M resource pools are all receiving resource pools; or
  • the method further includes:
  • the indexes of the M resource pools are determined based on the number of resource pools included in the SL BWP, or,
  • the indexes of the M resource pools are determined based on the number of resource pools included in the first carrier, and the first carrier is a carrier to which the SLBWP belongs.
  • the method further includes:
  • the network device sends or receives index information used to indicate the indexes of the M resource pools.
  • an apparatus for configuring side-link resources may be used to perform operations of the terminal device in the first aspect and any possible implementation manners thereof.
  • the apparatus may include a module unit for performing each operation of the terminal device in any possible implementation manner of the first aspect.
  • an apparatus for configuring side-link resources may be used to perform operations of the network device in the second aspect and any possible implementation thereof.
  • the apparatus may include a module unit for performing each operation of the network device in any possible implementation manner of the second aspect.
  • a terminal device includes a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is configured to store instructions
  • the processor is configured to execute instructions stored in the memory.
  • the execution causes the terminal device to execute any method in any possible implementation manner of the first aspect, or the execution causes the terminal device to implement a fifth Aspect of the device provided.
  • a network device includes a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is configured to store instructions
  • the processor is configured to execute instructions stored in the memory.
  • the execution causes the network device to execute any method in any possible implementation manner of the second aspect, or the execution causes the network device to implement a sixth Aspect of the device provided.
  • a chip system including a memory and a processor, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the chip system is installed.
  • the communication device executes any one of the above-mentioned first to second aspects and possible implementations thereof.
  • a computer program product includes computer program code, and when the computer program code is used by a communication unit, a processing unit, or a transceiver of a communication device (for example, a network device or a terminal device) When the processor is running, the communication device is caused to execute any one of the above-mentioned first aspect to the second aspect and possible methods thereof.
  • a computer-readable storage medium stores a program that causes a communication device (for example, a network device or a terminal device) to execute the first aspect to the second aspect and Any of its possible implementations.
  • a communication device for example, a network device or a terminal device
  • a computer program is provided.
  • the computer program When the computer program is executed on a computer, the computer will enable the computer to implement any one of the foregoing first aspect to the second aspect and possible methods thereof.
  • FIG. 1 is a schematic structural diagram of a mobile communication system applicable to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a bandwidth portion of a system bandwidth according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram showing indexes of frequency domain resources in a carrier and a bandwidth respectively in a bandwidth part of an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a frequency domain resource according to an embodiment of the present application.
  • FIG. 5 is a schematic interaction diagram of a method for configuring a side link resource according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a position relationship between a bandwidth part and a carrier according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a subchannel in a resource pool according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a resource pool in SL BWP.
  • FIG. 9 is a schematic diagram of a position relationship between scheduling resources and data resources in a resource pool according to an embodiment of the present application.
  • FIG. 10 is another schematic diagram of a position relationship between a scheduling resource and a data resource in a resource pool according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of indexes of frequency domain resources in a carrier and a bandwidth respectively in a bandwidth part of an embodiment of the present application.
  • FIG. 12 is another schematic diagram of indexes of frequency-domain resources in a carrier and a bandwidth respectively in a bandwidth part of an embodiment of the present application.
  • FIG. 13 is a schematic diagram of an index of a resource pool in a bandwidth part of an embodiment of the present application.
  • FIG. 14 is another schematic diagram of an index of a resource pool in a bandwidth part of an embodiment of the present application.
  • FIG. 15 is a schematic diagram of an apparatus for configuring a side link resource according to an embodiment of the present application.
  • FIG. 16 is a schematic diagram of another apparatus for configuring a side link resource according to an embodiment of the present application.
  • FIG. 17 is a schematic diagram of another apparatus for configuring a side link resource according to an embodiment of the present application.
  • GSM global mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunications System
  • WiMAX Global Interoperability for Microwave Access
  • the terminal device in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device.
  • Terminal equipment can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and wireless communications Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or public land mobile network (PLMN) in future evolution Terminal equipment and the like are not limited in this embodiment of the present application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • PLMN public land mobile network
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a Global System for Mobile Communication (GSM) system or a Code Division Multiple Access (CDMA) system.
  • the base station (Base Transceiver Station (BTS)) can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved) in an LTE system.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • the base station can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved) in an LTE system.
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolved evolved base station
  • NodeB can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, in-vehicle device, wearable device, and future
  • CRAN cloud radio access network
  • the network equipment in the 5G network or the network equipment in the future evolved PLMN network is not limited in the embodiments of the present application.
  • the embodiments of the present invention are applicable to scenarios of homogeneous networks and heterogeneous networks, and at the same time, there are no restrictions on transmission points. They can be multi-point coordinated transmission between macro base stations and macro base stations, micro base stations and micro base stations, and macro base stations and micro base stations . In addition, the embodiments of the present invention are applicable to both low-frequency scenes (sub 6G) and high-frequency scenes (above 6G).
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • This hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system.
  • This application layer contains applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the application can be run to provide the program according to the embodiment of the application.
  • the communication may be performed by using the method described above.
  • the method execution subject provided in the embodiments of the present application may be a terminal device or a network device, or a function module in the terminal device or the network device that can call a program and execute the program.
  • various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques.
  • article of manufacture encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CD), digital versatile discs (DVD) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and / or other machine-readable media used to store information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instruction (s) and / or data.
  • FIG. 1 is a schematic structural diagram of a mobile communication system applicable to an embodiment of the present application.
  • the mobile communication system includes a core network device 110, a radio access network device 120, and at least one terminal device (such as the terminal device 130 and the terminal device 140 in FIG. 1).
  • the terminal device is connected to the wireless access network device in a wireless manner
  • the wireless access network device is connected to the core network device in a wireless or wired manner.
  • the core network device and the wireless access network device can be separate and different physical devices, or the functions of the core network device and the wireless access network device's logical functions can be integrated on the same physical device, or they can be a physical device It integrates some functions of core network equipment and some functions of wireless access network equipment.
  • FIG. 1 is only a schematic diagram, and the communication system may further include other network devices, such as a wireless relay device and a wireless backhaul device, which are not shown in FIG. 1.
  • the embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.
  • a resource unit can be used as a unit of measurement for resources occupied by a resource in the time, frequency, or time-frequency domain.
  • the resource unit may include, for example, at least one of a symbol, a resource element (RE), a resource block (RB), and a subcarrier, which is not limited in this application.
  • the resource unit may be used as a unit of measurement of the resource occupied by the resource in the frequency domain. Therefore, the description of the resource unit involved in the embodiment of the present application may be understood as the resource unit in the frequency domain. And, for convenience of description, a resource unit in the frequency domain may be referred to as a frequency domain unit.
  • the frame structure may include time-domain units such as radio frames, subframes, time slots, mini-slots, mini-slots, and symbols.
  • the duration of a radio frame can be 10 milliseconds (ms).
  • a radio frame may include one or more subframes. For example, if the duration of a subframe is 1 millisecond, a radio frame may include 10 subframes, and a subframe may include one or more time slots. Different subcarrier intervals can have different timeslot lengths. For example, when the subcarrier interval is 15kHz, one timeslot can be 1ms; when the subcarrier interval is 30kHz, one timeslot can be 0.5ms, and so on.
  • One slot may include one or more symbols. For example, the next slot of a normal CP may include 14 symbols, and the next slot of an extended CP may include 12 symbols.
  • Table 1 shows the lengths of the subframes, radio frames, and time slots under normal CP, and the subcarrier intervals corresponding to the subframes, radio frames, and time slots.
  • one subframe may include one or more mini-slots.
  • a time slot may include one or more micro time slots (or mini time slots).
  • a microslot can be a smaller unit than a slot, and a microslot can include one or more symbols.
  • a microslot (or minislot) can include 2 symbols, 4 symbols, or 7 Symbols etc.
  • Frame structure parameters can also be referred to simply as parameters or parameter sets. In the standard discussion, they are collectively referred to as numerology. They are a set of parameters that represent the frame structure, including at least the subcarrier interval and / or cyclic prefix (CP).
  • the frame structure parameters may also include parameters such as the number of symbols included in a radio frame, a subframe, a time slot, a micro time slot, or a mini time slot.
  • different frequency bands may use different parameters of the frame structure, that is, different frequency bands may use different subcarrier intervals (for example, 15 kHz, 30 kHz, or 60 kHz, etc.) and different CPs (for example, normal CP, normal CP, NCP; extended CP, ECP).
  • different frequency bands can also use the same frame structure parameters, and the same frequency band can also use different frame structure parameters.
  • Symbol types in wireless communication may include types such as uplink symbols, downlink symbols, and flexible symbols.
  • the terminal device may assume that the downlink transmission occurs only on the downlink symbol and / or the flexible symbol. In one time slot in the uplink radio frame, the terminal device can assume that the uplink transmission occurs only on the uplink symbol and / or the flexible symbol.
  • the uplink and downlink configuration refers to a configuration for determining a symbol type.
  • the symbol type in one time slot or multiple time slots can be determined according to the uplink and downlink configuration
  • the symbol type in one subframe or multiple subframes can also be determined according to the uplink and downlink configuration
  • a radio frame can also be determined according to the uplink and downlink configuration.
  • the types of symbols in multiple radio frames, or the type of symbols in one microslot or multiple microslots (or minislots) may be determined according to the uplink and downlink configuration.
  • the uplink and downlink configuration may also be referred to as a time division multiplexed uplink and downlink configuration, or may be referred to as a time slot format configuration, or may be referred to as a frame structure uplink and downlink configuration.
  • the uplink and downlink configuration signaling can be high-level signaling or physical layer signaling.
  • BWP is a part of the system bandwidth, and is a continuous or discontinuous frequency domain resource, including several continuous or discontinuous one or more frequency domain units (for example, subcarriers).
  • the bandwidth part may also be called a bandwidth resource, a carrier bandwidth part, a frequency resource part, a part of a frequency resource, a subband, a narrowband, or other names.
  • FIG. 2 is a schematic diagram of a bandwidth part of a system bandwidth.
  • the system bandwidth includes a bandwidth part 0, a bandwidth part 1, and a bandwidth part 2.
  • the three bandwidth parts do not overlap each other.
  • OFDM orthogonal frequency division multiplexing
  • the frequency domain resources of the two bandwidth parts completely overlap, but the frame structure (for example, subcarrier interval and / or CP length )different.
  • the common index of the frequency domain unit represents the index of the frequency domain unit in a carrier, that is, the common index of the frequency domain unit is designed with the carrier as a reference object.
  • the carrier may be a carrier at a subcarrier interval level. Different subcarrier intervals correspond to different carriers. Specifically, starting from the starting frequency domain unit of the carrier, the numbers are numbered in the direction of increasing or decreasing frequency, so that any frequency domain unit in the carrier is offset by S1 frequency domain unit from the starting frequency domain unit of the carrier. In the subsequent frequency domain unit, S1 is an integer equal to or equal to 0.
  • different subcarrier intervals may correspond to different indexes of frequency domain units.
  • the frequency domain resources of RB0 and RB1 at 15 kHz may correspond to the frequency domain resources of RB0 at 30 kHz
  • the frequency domain resources of RB0 and RB1 at 30 kHz may correspond to RB0 at 60 kHz Frequency domain resources.
  • the index (ie, the common index) of the starting frequency domain unit in the carrier is 0, and the indexes increase in order according to the direction in which the frequency domain increases.
  • the index of a frequency domain unit in a BWP is designed with the BWP as a reference object. Specifically, starting from the starting frequency domain unit of the BWP, the numbers are numbered in the direction of increasing or decreasing frequency, so that any frequency domain unit in the BWP is offset by S2 frequency domain units from the starting frequency domain unit of the BWP In the subsequent frequency domain unit, S2 is an integer greater than or equal to zero.
  • the carrier includes BWP1, the common index of the starting frequency domain unit of BWP1 is 9, the index in BWP1 is 0, and the starting frequency domain unit of BWP1 is numbered in the direction of increasing frequency, so that the BWP
  • the index of the last frequency domain unit in BWP is 39 (the common index of the last frequency domain unit of BWP is 48).
  • the network device may configure the starting frequency domain unit of the BWP, the bandwidth size of the BWP, and the frame structure parameter (numerology) for the terminal device, so that the terminal device determines the BWP.
  • the starting frequency domain unit of the BWP is the frequency domain unit with the highest or lowest frequency domain position in the BWP, and the bandwidth can be expressed as the number of frequency domain units included in the BWP.
  • the terminal device may determine the starting frequency domain unit of the BWP through the following three offsets.
  • a process in which a terminal device determines a starting frequency domain unit of a BWP is described by taking a frequency domain resource corresponding to a RB as an example.
  • the first offset is a bandwidth size (for example, the number of RBs) of a reference point offset from a reference frequency location.
  • the terminal device may determine the reference point according to the reference frequency position and the first offset relative to the reference frequency position, and may further determine the public index of the RB corresponding to the reference point according to the reference point.
  • the reference point can be understood as the starting RB of the carrier.
  • the reference frequency positions in different scenarios are described below.
  • the reference frequency position is determined according to the RB with the lowest frequency of the synchronization signal block accessed by the terminal device;
  • the reference frequency position is determined according to the RB with the lowest frequency of the synchronization signal block accessed by the terminal device;
  • the reference frequency position is determined according to the frequency position configured by the network device, and the reference frequency position may correspond to an absolute frequency point number (ARFCN);
  • ARFCN absolute frequency point number
  • the reference frequency position may be determined according to the frequency position configured by the network equipment, and the frequency position may correspond to an absolute frequency point number ARFCN;
  • the reference frequency position is determined according to the frequency position configured by the network device, and the frequency position may correspond to an absolute frequency point number ARFCN.
  • the second offset is a bandwidth size (for example, the number of RBs) of the start RB of the virtual carrier relative to the reference point offset.
  • the terminal device determines the starting RB of the virtual carrier according to the reference point and the second offset.
  • the terminal device also needs to determine the virtual carrier according to the bandwidth of the virtual carrier configured by the further network device.
  • the virtual carrier can also be referred to as a logical carrier, a specific carrier of a terminal device, an available RB, and an available bandwidth.
  • the terminal device needs to determine a resource grid and orthogonal frequency division multiplexing according to the virtual carrier.
  • OFDM OFDM
  • RF radio frequency
  • the generation of the OFDM baseband signal is determined according to the size of the virtual carrier, that is, the number of RBs included in the virtual carrier. Taking a virtual carrier with continuous frequency as an example, it is assumed that the virtual carrier contains RBs, the OFDM baseband signal can be expressed as:
  • k 0 represents the subcarrier level offset configured by the network equipment
  • ⁇ f represents the subcarrier interval
  • N CP l represents the CP length of the l symbol
  • T c represents a predefined time domain unit, which can be based on the maximum subcarrier supported by the system
  • the third offset indicates a bandwidth size (for example, the number of RBs) of the offset of the start RB of the BWP relative to the start RB of the virtual carrier.
  • the terminal device may determine the starting RB of the BWP according to the third offset.
  • the starting frequency domain unit of the BWP is relative to the reference point, that is, relative to the starting frequency domain unit of the carrier.
  • the position of the BWP in the carrier may be determined according to the number of RBs and frame structure parameters included in the start RB and the BWP.
  • FIG. 4 shows frequency domain resources according to an embodiment of the present application.
  • the terminal device may determine the reference point A according to the first offset (offset1) and the reference frequency position, determine the RB corresponding to the reference point A, and determine the RB corresponding to the reference point A and the second offset (offset2). ) Determine the starting RB of the virtual carrier, determine the starting RB of the BWP according to the starting RB of the virtual carrier and the third offset (offset3); according to the starting RB of the BWP, the bandwidth of the BWP (for example, 5 RBs), and The frame structure parameters determine the position of the BWP in the carrier.
  • V2X communication Communication between terminal devices is called side-link communication.
  • the communication methods in the Internet of Vehicles system can be collectively referred to as V2X communication, where V represents a vehicle and X represents anything.
  • the V2X communication may include: vehicle-to-vehicle (V2V) communication, vehicle-to-vehicle infrastructure (V2I) communication, and vehicle-to-pedestrian communication (V2P) ) Or vehicle-to-network (V2N) communication.
  • V2V vehicle-to-vehicle
  • V2I vehicle-to-vehicle infrastructure
  • V2P vehicle-to-pedestrian communication
  • V2N vehicle-to-network
  • SL BWP BWPs capable of SL communication by a terminal device.
  • FIG. 5 is a schematic interaction diagram of a method for configuring a side link resource according to an embodiment of the present application. Each step of the embodiment of the present application will be described below. This embodiment can be used as an independent embodiment or combined with other embodiments in the present invention, which is not limited in this application.
  • the terminal device obtains a first parameter.
  • the first parameter is a parameter common to the M resource pools in the SL BWP.
  • the frequency domain resources of the M resource pools are located in the SL BWP. Integer.
  • the terminal device configures the M resource pools. At least one parameter of the M resource pools is the same. The at least one parameter is determined based on the first parameter.
  • the terminal device may determine the SLBWP of the embodiment of the present application based on the manner of determining the BWP described above.
  • the first parameter common to the resource pool is obtained,
  • One parameter may determine related parameters (ie, at least one parameter) of the M resource pools, that is, at least one parameter of the M resource pools is the same.
  • the frequency domain resources of any two resource pools in the M resource pools may completely overlap, may not overlap, or may partially overlap, and the embodiment of the present application is not limited thereto. It should be noted that when the frequency domain resources of any two resource pools in the M resource pools overlap (completely overlap or partially overlap), different frame structures can be configured for resource pools with overlapping frequency domain resources (for example, Subcarrier interval (CP), so that resource pools with overlapping frequency domain resources transmit different data.
  • CP Subcarrier interval
  • the relationship between the first parameter and the at least one parameter is described below.
  • the first parameter may be a parameter commonly used in the actual communication process of the terminal device using the M resource pools.
  • the terminal device may determine the first parameter in the SLBWP configuration information as the M parameters. Relevant parameters of the resource pool (that is, the at least one parameter), so that the at least one parameter of the M resource pools are all the same. It should be understood that, in this case, the at least one parameter is the first parameter. It can also be understood that the first parameter is a BWP level parameter and is applicable to all resource pools in one SL BWP, and the parameter characteristics of all resource pools in one SL BWP are the same.
  • the first parameter may be a parameter common to the pre-configured M resource pools, or a parameter common to the M resource pools expected by the network device or the system. Therefore, the terminal device is configuring The M resource pools may use the first parameter, for example, the first parameter may include multiple parameter values. However, when each resource pool is actually configured, at least one parameter value can be selected from the first parameter to configure the resource pool, and at least one parameter determined from the first parameter is a parameter applicable to the M resource pools. In this way, the at least one parameter of the M resource pools are all the same. In this case, the at least one parameter is equal to one or more values of the first parameter.
  • the first parameter includes at least one of the following: a waveform, an uplink and downlink configuration of a frame structure, or a parameter set, where the parameter set includes a subcarrier interval and / or a cyclic prefix CP.
  • the waveform indicates whether the transmission data uses a single carrier or multiple carriers, such as cyclic prefix-orthogonal frequency division division multiplexing access (CP-OFDMA) or the positive of the discrete Fourier transform extension.
  • CP-OFDMA cyclic prefix-orthogonal frequency division division multiplexing access
  • Cross-frequency division multiple access discrete, fourier, transform-spread-OFDMA, DFT-S-OFDMA.
  • the uplink and downlink configuration of the frame structure indicates the resources used for uplink transmission, the resources for downlink transmission and reserved resources in the SL BWP, or the uplink and downlink configuration of the frame structure can determine the resources used for uplink transmission in the SL BWP. At least one of resources for downlink transmission and reserved resources. It should be understood that the reserved resources herein may be resources composed of one or more flexible symbols described above, and the resources used for uplink transmission may be resources composed of one or more uplink symbols described above The resources used for downlink transmission may be resources composed of one or more downlink symbols described above.
  • the frame structure parameter is a set of parameters used to represent the frame structure. It can include at least one of the subcarrier interval and the CP, and can also include a parameter of the number of symbols included in a subframe or a time slot, which is not limited here. .
  • the first parameter may further include one or more of the following parameters:
  • PSCCH-PSSCH Adjacency PSCCH-PSSCH, The characteristics of whether the PSCCH and PSSCH of all resource pools in a SLBWP are always adjacent can be the same.
  • the parameter sync ConfigIndex used to indicate synchronization configuration that is, the synchronization configuration parameters of all resource pools in a SLBWP can be the same.
  • the parameter SL-Sync used to indicate the allowed synchronization type is Allowed, that is, the parameters of the allowed synchronization types of all resource pools in a SLBWP may be the same.
  • the synchronization type may include synchronization types such as satellite synchronization, base station synchronization, and terminal device synchronization.
  • the zone ID ZoneID used to indicate the zone can be the same.
  • the area may be an area divided according to a geographical position, and a specific area division may be predefined or configured to a terminal device through a network device.
  • the area identifier is used to identify an area. It should be understood that the above is only an example of the first parameter, and the embodiment of the present application is not limited to this.
  • a parameter common to all resource pools in a SLBWP can be classified as the first parameter, and this application should not be implemented. Example constitution is limited.
  • the network device sends the SLBWP configuration information.
  • the network device may send the SLBWP configuration information through RRC signaling or a system message. Or it can also be sent through other signaling, which is not limited in this application.
  • the configuration information may also be predefined or pre-configured, for example, the terminal device is pre-defined at the factory or pre-configured by the operator.
  • a resource pool for side-link communication of a terminal device can be configured in the SL BWP, and the SL-BWP configuration information is used to obtain the SL-BWP common resource pool for the resource pool.
  • a parameter so that at least one parameter determined based on the first parameter is applicable to the resource pool in the SL / BWP, that is, at least one parameter of the resource pool configured in the SL / BWP is the same. In this way, by configuring a resource pool in SL BWP, communication between different terminal devices can be achieved.
  • the M resource pools in the configured SL BWP can be the following Any type of resource pool:
  • the M resource pools are all sending resource pools; or
  • the M resource pools are all receiving resource pools; or
  • the sending resource pool indicates that the resource pool is used to send data
  • the receiving resource pool indicates that the resource pool is used to receive data, and is specifically used to receive data sent by other terminal devices.
  • the SLBWP is the SLBWP, or,
  • the SL BWP is the receiving SL BWP, or,
  • the SLBWP can be either the sending SLBWP or the receiving SLBWP.
  • the M resource pools in the SL BWP are all sending resource pools; if the SL BWP is the receiving SL BWP, then the M resource pools in the SL BWP are Receiving resource pool; if the SL BWP can be either a sending SL BWP or a receiving SL BWP, the M resource pools can have a sending resource pool or a receiving resource pool, or a part of the M resource pools The resource pool is a sending resource pool, and the resource pools other than the part of the M resource pools are receiving resource pools.
  • This embodiment of the present application describes a configuration method of SLBWP.
  • a terminal device can configure multiple SLBWPs for SL communication.
  • Each SLBWP configuration mode is the same, and can be implemented by the configuration mode of this embodiment.
  • multiple SL-BWP related features are described.
  • the multiple SL BWPs may be located on the same carrier, or may be located on different carriers.
  • the starting frequency domain units of the two SL BWPs in the left picture are relative to the reference point A of carrier 1, and are located in carrier 1.
  • the two SL BWPs in the right picture are respectively Located in different carriers, the starting frequency domain unit of SLBWP1 is relative to reference point A of carrier 1, SLBWP1 is located in carrier 1, and the starting frequency domain unit of SLBWP2 is relative to reference point A of carrier 2.
  • SL BWP2 is located in carrier 2.
  • the attributes of the resource pools in any two SL BWPs may be the same or different.
  • the first parameters of multiple SL BWPs may be the same or different.
  • the frame structure parameters and / or waveforms of the two SL BWPs may be the same, or the frame structure parameters and / or waveforms of the two SL BWPs may be different, or the frame structure parameters of the two SL BWPs may be different.
  • the uplink and downlink configurations can be different.
  • the SL / BWP of the embodiment of the present application has been described above.
  • the resource pool in the SL / BWP is described in detail.
  • This embodiment can be used as an independent embodiment or combined with other embodiments in the present invention, which is not limited in this application.
  • the resource pool is configured in SL BWP, that is, the frequency domain resources of one resource pool are located in one SL BWP, or it can be said that one resource pool is associated with one SL BWP.
  • the frequency domain resources of one resource pool cannot exceed one SL-BWP, or the frequency domain resources of one resource pool cannot be located in two SL-BWPs.
  • one or more resource pools may be indicated in the configuration information of the SL BWP, that is, the frequency domain resources of the resource pool are located in the SL BWP to which they belong.
  • an SL BWP identifier may be indicated, that is, the resource pool is associated with the SL BWP, that is, a frequency domain resource of the resource pool is located in the associated SL BWP.
  • the terminal device determines the frequency domain positions of the M resource pools according to the bandwidth size of the SL BWP and the starting frequency domain unit of the SL BWP.
  • the bandwidth size of the SLBWP can be expressed as the number of frequency domain units included in the SLBWP, such as the number of resource blocks included.
  • This embodiment of the present application provides four methods (ie, method 1, method 2, method 3, and method 4) for determining the frequency domain positions of the M resource pools.
  • the four methods are described below. Specifically, one or more of the following methods may be adopted.
  • This embodiment can be used as an independent embodiment or combined with other embodiments in the present invention, which is not limited in this application.
  • a terminal device may configure a subchannel, and a subchannel may include one or more frequency domain units, for example, a frequency domain unit is a resource block.
  • a frequency domain unit is a resource block.
  • One or more subchannels may constitute frequency domain resources of a resource pool. Therefore, in this manner, the frequency domain position of each resource pool can be determined through related parameters on the subchannels.
  • the frequency domain position determination method of each resource pool may be similar, for convenience of description, taking any one of the M resource pools (for example, the i-th resource pool) as an example, i ⁇ [1, M], the process of determining the frequency domain position of a resource pool will be described.
  • the ith resource pool of the M resource pools includes N subchannels, where N is an integer greater than or equal to 1, and i ⁇ [1, M], and each subchannel may include one or more frequency domain units ,as well as;
  • the terminal device configures the M resource pools according to the bandwidth of the SL BWP and the starting frequency domain unit of the SL BWP, including:
  • the terminal device configures the i-th resource pool according to a second parameter, where the second parameter includes:
  • the i-th resource pool in the M resource pools may be any one of the M resource pools.
  • the second parameter is a dedicated parameter used by the terminal device to configure each resource pool.
  • M resource pools may correspond to M second parameters, and each resource pool is determined by the corresponding second parameter.
  • the bandwidth of the subchannel is a reference value and can be used to determine the bandwidth of each subchannel.
  • the reference value may be a bandwidth size of at least a part of the subchannels, where the bandwidth size of at least a part of the subchannels indicates a bandwidth size of all the subchannels or a bandwidth size of a part of the subchannels.
  • the reference value may be the bandwidth of subchannels other than the first subchannel and / or the last subchannel in the N subchannels.
  • the bandwidth size of the resource pool cannot divide the bandwidth of the subchannel when the network device configures the resource pool
  • the bandwidth of the first subchannel and / or the last subchannel of the N subchannels may be finally configured.
  • the size may differ from the reference value.
  • FIG. 7 shows another schematic diagram of a resource pool in SL BWP.
  • resource pool 1 includes five subchannels, and the bandwidths of subchannels 2, 3, and 4 are all the bandwidths of the subchannels in the second parameter. The bandwidth of channel 1 and subchannel 5 is different from the bandwidth of the subchannel in this second parameter.
  • resource pool 1 includes 4 subchannels, subchannel 1, subchannel 2, and subchannel 3. The bandwidth is all the bandwidth of the subchannel in the second parameter, and the bandwidth of subchannel 4 is different from the bandwidth of the subchannel in the second parameter.
  • the second parameter in the embodiment of the present application may be any of the following situations.
  • the second parameter includes the bandwidth of one subchannel, the number N of subchannels included in the i-th resource pool, and the starting frequency domain unit of the first subchannel in the N subchannels.
  • the terminal device may determine the N subchannels starting with the starting frequency domain unit of the first subchannel as the i-th resource pool, and the bandwidth of each channel in the N subchannels may be based on the first
  • the determination of the bandwidth of the sub-channels in the two parameters can be referred to the above description of determining the bandwidth of the sub-channels in the resource pool based on the bandwidth of the sub-channels in the second parameter.
  • the second parameter includes the bandwidth of a subchannel and the starting frequency domain unit of the first subchannel in the N subchannels.
  • the terminal device may start from the starting frequency domain unit of the first subchannel, and determine each subchannel in turn according to the bandwidth of the subchannel until the resources in one SLBWP are determined.
  • the bandwidth of each of the N subchannels may be determined based on the bandwidth of the subchannel in the second parameter. For details, refer to the foregoing for determining the subchannel in the resource pool based on the bandwidth of the subchannel in the second parameter. The description of the bandwidth is not repeated here for brevity.
  • the terminal device may determine N by using the bandwidth size of the SL BWP and the bandwidth size of one subchannel, thereby determining N subchannels starting from the starting frequency domain unit of the first subchannel. For example, if the bandwidth of SL BWP is The bandwidth of the subchannel is If the starting frequency domain unit of the first subchannel is not considered, the maximum number of subchannels that can be included in a BWP can be N ⁇ N max . If the starting frequency domain unit of the first subchannel is considered, the maximum number of subchannels that can be included in an SL BWP can be k is the number of frequency-domain units of the starting frequency-domain unit of the first sub-channel offset SL BWP. Taking FIG.
  • the starting frequency domain unit of the first subchannel is a frequency domain unit with a common index of 11 or an index of 2 in the BWP
  • the common index is 11 or a frequency of an index of 2 in the BWP
  • the domain unit is offset from the starting frequency domain unit of the BWP (a frequency domain unit with a common index of 9 or an index of 0 in the BWP) by 2 frequency domain units.
  • the second parameter includes the number N of subchannels included in the i-th resource pool and the starting frequency domain unit of the first subchannel in the N subchannels.
  • the terminal device can determine the reference value of the bandwidth of each sub-channel through the bandwidth size of SL and BWP, thereby determining the size of each sub-channel from the first sub-channel.
  • the starting frequency domain unit can determine N subchannels at first, thereby determining the size of the resource pool.
  • the reference value of the bandwidth of the subchannel can be The bandwidth of at least some of the subchannels
  • the bandwidth of at least some of the sub-channels indicates the bandwidth of all sub-channels or the bandwidth of some of the sub-channels.
  • the bandwidths of the N subchannels are the same, and the bandwidth of each subchannel is the same.
  • the bandwidth of the sub-channels in the middle position among the N sub-channels is the same, and the bandwidth of each sub-channel is the same.
  • the bandwidth of the first and last subchannels is different from the bandwidth of the subchannel in the middle position.
  • the network device may notify the terminal device of the information of the number M of resource pools included in the SL BWP through signaling, or the information of the number M of resource pools included in the SL BWP may be It is predefined by the protocol.
  • At least one of the second parameters may be sent by the network device to the terminal device through signaling, and at least one of the second parameters may also be determined by the terminal device in a predefined manner.
  • the methods for acquiring the second parameter are described below. One or more of the following can be used.
  • the second parameter is sent by the network device to the terminal device through signaling.
  • the second parameter is generated by dividing the subchannels into different resource pools, and then the first parameter is generated.
  • the two parameters are sent to the terminal device, and the terminal device determines the resource pool according to the second parameter.
  • the process of determining the sub-channel and the resource pool by the network device is briefly described as an example.
  • the network device determines the frequency domain positions of the M resource pools according to the bandwidth size of the SL BWP, the starting frequency domain unit of the SL BWP, the bandwidth size of the subchannel, and M.
  • the network device may start from the starting frequency domain unit of the SL BWP. Based on the bandwidth of the SL BWP, the frequency domain resources of the SL BWP are roughly divided into M, and one frequency domain resource is A resource pool. In this way, the frequency domain position of each resource pool can be determined, and the number of subchannels included in each resource pool can be determined according to the bandwidth of the subchannel and the bandwidth of each resource pool. Determine the location of the subchannels in each resource pool. Thereby, a second parameter corresponding to each resource pool is generated.
  • Figure 8 shows a schematic diagram of a resource pool in SL BWP.
  • SL-BWP bandwidth of SL-BWP
  • M 4
  • Each resource pool in the first 3 resource pools can include 8 frequency domain units
  • the fourth resource pool includes 6 frequency domain units.
  • each of the first three resource pools can include seven frequency domain units
  • the fourth resource pool includes nine resource pools.
  • the network device may determine the maximum number of sub-channels N max in the SL BWP based on the bandwidth size of the SL BWP and the bandwidth of the sub-channel, and determine the number N 1 of sub-channels included in the SL BWP according to N max , Determine the frequency domain position of N1 subchannels in SL BWP according to the starting frequency domain unit of SL BWP and N1, and determine the frequency domain position of each resource pool in M resource pools according to the frequency domain position of N1 subchannels and M , N1 subchannels are roughly divided into subchannels of M resource pools. Thereby, a second parameter corresponding to each resource pool is generated.
  • N1 cannot divide M
  • the number of subchannels in the resource pool are all the same.
  • the number of subchannels N1 included in the SL BWP can be determined in the following manner: If the bandwidth of the SL BWP is The bandwidth of the subchannel is If the starting frequency domain unit of the first subchannel among N1 subchannels is not considered, the maximum number of subchannels that can be included in the SL BWP can be N1 ⁇ N max . If the starting frequency domain unit of the first subchannel is considered, the maximum number of subchannels that can be included in the SL BWP can be k is the number of frequency-domain units of the starting frequency-domain unit of the first sub-channel offset SL BWP.
  • the bandwidth size of the subchannel is determined based on the mapping relationship between the bandwidth size of the SLBWP and the bandwidth size of the subchannel.
  • the bandwidth of the SLBWP is B1, the bandwidth of the subchannel is b1; if the bandwidth of the SLBWP is B2, the bandwidth of the subchannel is b2; and so on.
  • Table 3 is a comparison of B1, B2, B3, B4 and b1, b2, b3, and b4 are tables generated after specific values are taken.
  • B1, B2, B3, and B4 are positive integers, and b1, b2, b3, and b4 are positive integers.
  • the bandwidth size of the subchannel is determined based on the mapping relationship between the bandwidth size interval of the SLBWP and the bandwidth size of the subchannel.
  • the bandwidth of the SLBWP ranges from C1 to C2, the bandwidth of the subchannel is c1; if the bandwidth of the SLBWP is C3 to C4, the bandwidth of the subchannel is c2; and so on.
  • mapping relationship between the bandwidth range of the SLBWP and the bandwidth size of the subchannels can be shown in Tables 4 and 5 below, where Table 5 is a comparison of C1, C2, and C3 in Table 4, C4, C5, C6, C7, C8 and c1, c2, c3, c4 are generated after specific values are made, where C1, C2, C3, C4, C5, C6, C7, C8 are positive integers, c1, c2, c3 and c4 are positive integers.
  • mapping relationship between the bandwidth size of the SLBWP and the bandwidth size of the subchannel, or the mapping relationship between the bandwidth size interval of the SLBWP and the bandwidth size of the subchannel may be specified by the system or protocol, here No restrictions.
  • the number N of subchannels in a resource pool may be related to M, the bandwidth size of the subchannel, and the bandwidth size of SL and BWP.
  • the network device may determine the number N of subchannels included in a resource pool based on the above three parameters. For a specific manner, refer to the foregoing description. For brevity, details are not described herein again.
  • the starting frequency domain unit of the first subchannel may be the starting frequency domain unit of the resource pool, or may not be the starting frequency domain unit of the resource pool.
  • the resource pool may include two parts of resources, for example, one part is a Scheduling Assignment (SA) resource, which is used to transmit scheduling information; the other part is a data resource, which is used to transmit data.
  • SA resources and data resources may be adjacent in the frequency domain or may not be adjacent in the frequency domain. Therefore, the starting frequency domain unit of the first subchannel is described below based on whether the SA resource and the data resource are adjacent. One or more of the following situations can be adopted.
  • SA Scheduling Assignment
  • the starting frequency domain unit of the first subchannel may be a starting frequency domain unit of each resource pool.
  • the number of frequency domain units of the SA resource included in the subchannel may be predefined, or may be notified to the terminal device by the network device through signaling.
  • the SA resource may be 2 resource blocks, 4 resource blocks, or other positive integer resource blocks.
  • the SA resource and the data resource have a corresponding relationship
  • a subchannel may include both the SA resource and the data resource.
  • the data resources of one subchannel may correspond to the SA resources in the subchannel.
  • the SA resource may be a starting frequency domain unit located in a subchannel resource.
  • the starting frequency domain resource of the SA resource may also be a starting frequency domain unit of each resource pool.
  • the starting frequency domain unit of the first subchannel may be a starting frequency domain unit of each resource pool.
  • only one data resource is included in one subchannel.
  • the SA resource has a corresponding relationship with the data resource.
  • the data resource of a subchannel may correspond to an SA resource.
  • FIG. 9 is a schematic diagram of SA resources and data resources in a resource pool.
  • SA resources are a first SA resource, a second SA resource, a third SA resource, and a fourth SA.
  • Resources; from bottom to top, the subchannels are the first subchannel, the second subchannel, the third subchannel, and the fourth subchannel, respectively.
  • the correspondence between SA resources and data resources can be as follows: the first subchannel corresponds to the first SA resource, the second subchannel corresponds to the second SA resource, the third subchannel corresponds to the third SA resource, and the fourth subchannel corresponds to In the fourth SA resource.
  • the starting frequency domain unit of the SA resource may be the starting frequency domain unit of each resource pool.
  • the starting frequency domain unit of the first subchannel may be It is determined according to the SA resource.
  • the starting frequency domain unit of the first subchannel is the first frequency domain unit after the last frequency domain unit of the SA resource.
  • the starting frequency domain unit of the data resource is the starting frequency domain unit of the resource pool, or the starting frequency domain unit of the SA resource is the starting frequency domain unit of the resource pool.
  • which of the above two cases is adopted may be predefined by the protocol, or may be notified by the network device to the terminal device through signaling.
  • FIG. 10 shows another schematic diagram of SA resources and data resources in the resource pool. As shown in FIG. 10, SA resources and sub-channel resources can also be shared.
  • the number of frequency domain units of the SA resource may be predefined, or may be notified to the terminal device by the network device through signaling.
  • the SA resource may be 2 resource blocks, 4 resource blocks, or other positive integer resource blocks.
  • the terminal device determines the second parameter.
  • M 1
  • the process of determining the resource pool by the terminal device is as follows: The terminal device may determine the maximum number of subchannels N max in the SL BWP based on the bandwidth size of the SL BWP and the bandwidth size of the sub channel. Max determines the number N of subchannels included in the resource pool (or SL BWP), determines the frequency domain positions of the N subchannels in the resource pool according to the starting frequency domain unit and N of the SL BWP, and then determines the resource pool.
  • the starting frequency domain unit of the first subchannel may be the starting frequency domain unit of SL BWP, or may be a frequency domain unit offset from the starting frequency domain unit of SL BWP by k frequency domain units; k may be notified by a network device through signaling, or may be specified by a system or protocol.
  • the bandwidth size of the subchannel may be determined based on the mapping relationship between the bandwidth size of the SLBWP and the bandwidth size of the subchannel, or the bandwidth size of the subchannel may be based on the mapping relationship between the bandwidth range of the SLBWP and the bandwidth size of the subchannel. It is determined that the mapping relationship may be specified by a protocol or a system. As described in the foregoing embodiment, details are not described herein again.
  • the second parameter may also include other parameters that are specific to each resource pool. For example, if the first parameter includes the waveform, but does not include the uplink and downlink configuration and parameter set of the frame structure, the second parameter may include the uplink and downlink configuration and parameter set of the frame structure; similarly, if the first parameter includes the waveform and frame structure, For the uplink and downlink configuration, the parameter set is not included, and the second parameter includes the parameter set.
  • the resource pool does not need to be determined through the subchannels in the method 1, and the terminal device may determine the resource pool by itself.
  • the terminal device determines the frequency domain positions of the M resource pools according to the bandwidth size of the SL BWP and the starting frequency domain unit of the SL BWP, including:
  • the terminal device determines the frequency-domain positions of the M resource pools according to the bandwidth of the SL-BWP, the starting frequency-domain unit of the SL-BWP, and M.
  • the network device may notify the terminal device of the information of the number M of resource pools included in the SLBWP through signaling, or the information of the number M of resource pools may be predefined by the protocol.
  • the terminal device may start from the starting frequency domain unit of the SL BWP, and divide the frequency domain resources of the SL BWP into M based on the bandwidth of the SL BWP.
  • One frequency domain resource is one resource pool. Determine the frequency domain location of each resource pool. Please refer to the description of FIG. 8 above.
  • M may be predefined by the protocol, or may be configured by the network device to the terminal device through signaling, which is not limited herein.
  • the terminal device may continue to determine at least one subchannel in the resource pool.
  • a resource pool is used as an example to describe the process of configuring a terminal device in at least one subchannel in a resource pool. Terminal devices are in other resource pools.
  • the process of configuring a resource pool in SNMP can be similar.
  • the process of determining a subchannel is described in three ways. In the implementation process, any of the following methods can be adopted.
  • the terminal device may determine the number of subchannels included in the resource pool according to the bandwidth of the subchannel and the bandwidth of the resource pool. According to the starting frequency domain unit of the first subchannel, each terminal in the resource pool may be further determined. The position of each subchannel.
  • the bandwidth of the subchannel may be determined according to the mapping relationship between the bandwidth of the subchannel and the SLBWP, or the bandwidth of the subchannel may be determined according to the interval between the bandwidth of the subchannel and the mapping relationship between the SLBWP and the mapping relationship. It is specified by the system or protocol; the starting frequency domain unit of the first subchannel may be the starting frequency domain unit of the resource pool, or it may not be the starting frequency domain unit of the resource pool. For a detailed description, refer to the manner 1A above. The description of the starting frequency domain unit of the first subchannel is omitted here for brevity.
  • the terminal device may also determine the bandwidth of the subchannel according to the number of subchannels included in a resource pool and the bandwidth of the resource pool.
  • the resource pool may be further determined according to the starting frequency domain unit of the first subchannel The position of each subchannel in.
  • the number of subchannels included in the resource pool may be specified by the system or protocol, or may be sent by the network device to the terminal device through signaling.
  • the starting frequency domain unit of the first subchannel may be the starting frequency domain unit of the resource pool, or it may not be the starting frequency domain unit of the resource pool. For a detailed description, refer to the starting of the first subchannel in manner 1A above. The description of the starting frequency domain unit is omitted here for brevity.
  • the terminal device may determine the position of the subchannel in the resource pool by using the bandwidth of the subchannel, the bandwidth of the resource pool, and the starting frequency domain unit of the first subchannel.
  • the bandwidth of the subchannel, the bandwidth of the resource pool, and the starting frequency domain unit of the first subchannel refer to the description above.
  • the frequency domain resources of the multiple resource pools determined by this method may not overlap, or may partially overlap, or the frequency domain resources of one resource pool may include the frequency domain resources of another resource pool.
  • the frequency domain position of the resource pool may be determined based on the starting frequency domain unit of the first subchannel, the bandwidth size of the subchannel, and the number of subchannels included in one resource pool.
  • the i-th resource pool is determined according to the frequency domain resources of the i-1th resource pool, and i is greater than or equal to 2.
  • the starting frequency domain unit of the i-th resource pool is the termination frequency of the i-1 resource The first frequency domain unit after the domain unit.
  • the starting frequency domain unit of the i-th resource pool may be determined according to the number of frequency domain units in which resource pool i and resource pool i-1 overlap.
  • the number of overlapping frequency domain units may be predefined by the protocol, or may be notified by the network device to the terminal device through signaling.
  • the starting frequency domain unit of the i-th resource pool is the corresponding frequency domain resource unit after subtracting the number of overlapping resource units from the ending frequency domain unit of the i-1th resource.
  • This method is similar to Method 2, except that the network device determines M resource pools in Method 2, and sends related parameters about the frequency domain position of each resource pool to the terminal device.
  • the terminal device determines the M resource pools through the received parameters. .
  • Mode 2 For specific description, reference may be made to Mode 2, and details are not described herein again.
  • the parameter may include the number of frequency domain units in the i-th resource pool and a starting frequency domain unit of the i-th resource pool.
  • the i-th resource pool is any one of the M resource pools.
  • the number of frequency domain units may also be referred to as the bandwidth of the resource pool.
  • the position of the frequency domain unit of the i-th resource pool may be determined according to the starting frequency domain unit of the i-th resource pool.
  • the parameter includes a starting frequency domain unit (such as a starting RB) of the i-th resource pool, a number of frequency domain units (such as the number of RBs), and a terminating frequency domain unit (such as Terminate at least two of RB).
  • a starting frequency domain unit such as a starting RB
  • a number of frequency domain units such as the number of RBs
  • a terminating frequency domain unit such as Terminate at least two of RB.
  • the frequency domain resources of the resource pool may be starting RB ⁇ starting RB + RB number, and / or, ending RB-RB number ⁇ terminating RB, and / or, starting RB ⁇ terminating RB .
  • the terminal device since the frequency domain resources of the resource pool are described in the embodiment of the present application, the terminal device also needs to consider the subcarrier interval when configuring the resource pool, so that other parameters of the resource pool (for example, the second Parameter) needs to correspond to the subcarrier interval.
  • This embodiment can be used as an independent embodiment or combined with other embodiments in the present invention, which is not limited in this application.
  • the terminal device may determine the M resource pools in the SLBWP according to the subcarrier interval in the first parameter.
  • the remaining parameters (for example, the second parameter) obtained for configuring the resource pool obtained by the terminal device are parameters corresponding to the subcarrier interval. For example, if the subcarrier interval in the first parameter is 15 kHz, and the bandwidth of the subchannel corresponding to the subcarrier interval is 2 frequency domain units, then the bandwidth of the subchannel in the second parameter obtained by the terminal device is These are two frequency domain units corresponding to the subcarrier interval.
  • the terminal device obtains the first parameter in the SLBWP configuration information. If the second parameter sent by the network device is received, the second parameter is the parameter corresponding to the subcarrier interval by default. If the terminal device determines the second parameter by itself , The second parameter is directly determined based on the subcarrier interval.
  • the second parameter may also be a parameter based on a subcarrier interval (denoted as subcarrier interval 1) defined by the protocol, which is a subcarrier interval 1 and a subcarrier of a resource pool.
  • the interval (for ease of identification and understanding, denoted as subcarrier interval 2) may be the same or different. If the subcarrier interval 1 and the subcarrier interval 2 are different, the second parameter corresponding to the subcarrier interval 1 needs to be converted into the second parameter corresponding to the subcarrier interval 2.
  • the subcarrier interval 1 is 15kHz
  • the bandwidth of the subchannel corresponding to the subcarrier interval 1 in the second parameter is 4 frequency domain units
  • the subcarrier interval 2 is 30kHz.
  • the terminal device needs to convert the bandwidth of the subchannel from 4 in the second parameter to 2.
  • the network device when the network device sends the second parameter to the terminal device through signaling, there may be different indication forms based on different reference positions of the starting frequency domain unit of the first subchannel.
  • the related content of the relative reference position of the starting frequency domain unit of the first subchannel is described.
  • This embodiment can be used as an independent embodiment or combined with other embodiments in the present invention, which is not limited in this application. One or more of the following can be used.
  • the first subchannel of a frequency domain starting unit with respect to the frequency domain starting SL BWP cell offset frequency domain units K 1, K 1 is an integer greater than or equal to 0.
  • the reference position of the starting frequency domain unit of the first sub-channel is the starting frequency domain unit of SL / BWP.
  • the index of the starting frequency domain unit of the first subchannel is based on the number of frequency domain units that the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the SLWP. definite.
  • this index can be the index of the frequency domain unit in SL / BWP, and is designed with SL / BWP as the reference object.
  • the frequency domain unit in the SLBWP can be renumbered, thereby generating an index in the SLBWP.
  • the index of the starting frequency domain unit of the first subchannel is related to the number of frequency domain units that the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the SLWP.
  • the index of the starting frequency domain unit of the first subchannel is the number of frequency domain units that the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the SLWP.
  • the network device may renumber the indexes of the frequency domain units in the SLBWP so that the indexes of the frequency domain units in the SLBWP are 0-43.
  • the index of the starting frequency domain unit of a sub-channel is 36, which is offset from the starting frequency domain unit of SL / BWP by 36 frequency domain units.
  • the newly generated index of the frequency domain unit has a smaller value and occupies fewer bits. Therefore, using the newly generated index to indicate the frequency domain unit can effectively Reduce the occupied bits, thus saving resources.
  • the network device may be a 1 to indicate that the first subchannel of the frequency domain starting unit indicated by K.
  • the terminal device only needs to know that the reference position of the starting frequency domain unit of the first subchannel is the starting frequency domain unit of the SL BWP, and it is not necessary to renumber the frequency domain units in the SL BWP.
  • the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the first carrier by 2 frequency domain units, and the first carrier is a frequency domain resource of the i-th resource pool.
  • the carrier to which K 2 belongs is an integer greater than or equal to 0.
  • the reference position of the start frequency domain unit of the first subchannel is the start frequency domain unit of the first carrier.
  • the index of the starting frequency domain unit of the first subchannel is based on the frequency domain unit of the starting frequency domain unit of the first subchannel being offset from the starting frequency domain unit of the first carrier. The number is ok.
  • this index may be a common index of a frequency domain unit and is designed with the first carrier as a reference object.
  • the network device can use the existing public index of the system to indicate the starting frequency domain unit of the first subchannel.
  • the index of the starting frequency domain unit of the first subchannel is the number of frequency domain units that the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the first carrier.
  • the common index 9-52 of the frequency domain unit in the SL BWP is taken from the resource pool 6 as an example.
  • the index of the starting frequency domain unit of the first subchannel in the resource pool 6 is 45, that is, The starting frequency domain unit of carrier 1 is offset by 45 frequency domain units.
  • the network device may also indicate the starting frequency domain unit of the first subchannel by indicating K2.
  • the terminal device and the network device will negotiate which way to indicate the frequency domain unit. If it is based on mode A, the terminal device can also renumber the frequency domain units in the SLBWP to generate the frequency domain units in the SLBWP. In this way, the terminal device can accurately determine the frequency domain unit indicated by the index after receiving the index indicating the frequency domain unit of the first subchannel. If it is based on mode B, the terminal device may not need to renumber the frequency domain units in the SL / BWP, and directly use the common index of the frequency domain unit to determine the frequency domain unit indicated by the index.
  • the network device may send the resource device's
  • the related parameters enable the terminal device to determine the location of each resource pool, where the related parameters of each resource pool may include a starting frequency domain unit of the resource pool.
  • the indication manner of the network device for the starting frequency domain unit of the resource pool may be similar to the foregoing indication manner of the network device for the starting frequency domain unit of the first subchannel in the resource pool.
  • the related content of the relative reference position of the starting frequency domain unit of the resource pool is described. This embodiment can be used as an independent embodiment or combined with other embodiments in the present invention, which is not limited in this application. In implementation, any one of the following methods can be adopted.
  • the starting frequency domain unit of the resource pool is offset from the starting frequency domain unit of the SL BWP by K 3 frequency domain units, and K 3 is an integer greater than or equal to 0.
  • the reference position of the starting frequency domain unit of the resource pool is the starting frequency domain unit of the SL / BWP.
  • the index of the starting frequency domain unit of the resource pool is determined based on the number of frequency domain units that the starting frequency domain unit of the resource pool is offset from the starting frequency domain unit of the SLWP.
  • this index can be the index of the frequency domain unit in SL / BWP, and is designed with SL / BWP as the reference object.
  • the frequency domain unit in the SL BWP can be renumbered to generate an index in the SL BWP.
  • the index of the starting frequency domain unit of the resource pool is related to the number of frequency domain units that the starting frequency domain unit of the resource pool is offset from the starting frequency domain unit of the SLBWP.
  • the index of the starting frequency domain unit of the resource pool is the number of frequency domain units that the starting frequency domain unit of the resource pool is offset from the starting frequency domain unit of the SLWP.
  • the network device may renumber the index of the frequency domain unit in the SLBWP so that the index of the frequency domain unit in the SLBWP is 0-43.
  • the start of resource pool 6 The index of the frequency domain unit is 36, which is 36 frequency domain units offset from the starting frequency domain unit of the SLWP.
  • the newly generated index of the frequency domain unit has a smaller value and occupies fewer bits. Therefore, using the newly generated index to indicate the frequency domain unit can effectively Reduce the occupied bits, thus saving resources.
  • the network device 3 may be indicated starting frequency domain of the resource unit pool by indicating K.
  • the terminal device only needs to know that the reference position of the starting frequency domain unit of the resource pool is the starting frequency domain unit of the SL BWP, and it is not necessary to renumber the frequency domain units in the SL BWP.
  • the starting frequency domain unit of the resource pool is offset from the starting frequency domain unit of the first carrier by K 4 frequency domain units, and the first carrier is a carrier to which the frequency domain resources of the i-th resource pool belong.
  • K 4 is an integer greater than or equal to 0.
  • the reference position of the starting frequency domain unit of the resource pool is the starting frequency domain unit of the first carrier.
  • the index of the starting frequency domain unit of the resource pool is determined based on the number of frequency domain units that the starting frequency domain unit of the resource pool is offset from the starting frequency domain unit of the first carrier.
  • this index may be a common index of a frequency domain unit and is designed with the first carrier as a reference object.
  • the network device can use the system's existing public index to indicate the starting frequency domain unit of the resource pool.
  • the index of the starting frequency domain unit of the resource pool is the number of frequency domain units that the starting frequency domain unit of the resource pool is offset from the starting frequency domain unit of the first carrier.
  • the common index 9-52 of the frequency domain unit in the SLWP is taken from resource pool 6 as an example.
  • the index of the starting frequency domain unit of resource pool 6 is 45, which is the same as the starting frequency domain of carrier 1.
  • the unit is offset by 45 frequency domain units.
  • the network device may indicate to the start of the frequency domain resource unit pool by indicating K 4.
  • the terminal device and the network device will negotiate which way to indicate the frequency domain unit. If it is based on mode A, the terminal device can also renumber the frequency domain units in the SLBWP to generate the frequency domain units in the SLBWP. In this way, the terminal device can accurately determine the frequency domain unit indicated by the index after receiving the index indicating the frequency domain unit of the resource pool. If it is based on mode B, the terminal device may not need to renumber the frequency domain units in the SL / BWP, and directly use the common index of the frequency domain unit to determine the frequency domain unit indicated by the index.
  • This embodiment of the present application describes a method for configuring a resource pool.
  • the terminal device acting as the receiving end in order to facilitate identification and understanding, it is referred to as the first terminal device
  • the terminal device on the transmitting end to facilitate the identification
  • the second terminal device also needs to know in which resource pool the data can be sent.
  • This embodiment can be used as an independent embodiment or combined with other embodiments in the present invention, which is not limited in this application.
  • the network device may send the first instruction information indicating the resource pool to the second terminal device, and the first instruction information may be carried in downlink control information (DCI); in another In this manner, the second terminal device may send second instruction information for indicating the resource pool to the first terminal device, and the second instruction information may be carried in sidelink control information (SCI).
  • DCI downlink control information
  • SCI sidelink control information
  • the first indication information or the second indication information may be collectively referred to as index information or identification information.
  • index of the resource pool Either way, it can be indicated by the index of the resource pool.
  • two design methods of the index of the resource pool will be described. In implementation, any one of the following methods can be adopted.
  • two resource pools are configured in SL BWP 0 and are numbered as resource pool 0 and resource pool 1.
  • Two resource pools are configured in SL BWP 1 and are numbered as resource pool 0 and resource pool. 1.
  • the index of the resource pool is the index in SLWP.
  • the information indicated in the first indication information or the second indication information may include: an index of SLBWP + an index of the resource pool.
  • two resource pools are configured in SL BWP 0 and are numbered as resource pool 0 and resource pool 1, and two resource pools are configured in SL BWP 1 and numbered as resource pool 2 and resource pool. 3.
  • the index of the resource pool is the index in the carrier.
  • the information indicated by the first indication information or the second indication information may include only an index of a resource pool.
  • the specific method 1 or method 2 is adopted, which may be predefined by the protocol, or may be notified by the network device to the terminal through signaling. Specifically, this application does not limit this.
  • the terminal device in the embodiment of the present application may be any one of the first terminal device or the second terminal device.
  • FIG. 15 shows an apparatus 1500 for configuring side-link resources provided by an embodiment of the present application.
  • the apparatus 1500 may be a terminal device or a chip in the terminal device.
  • the device 1500 includes a processing unit 1510 and a processing unit 1520.
  • the processing unit 1510 is configured to obtain a first parameter, which is a parameter common to M resource pools in the SL BWP.
  • the frequency domain resources of the M resource pools are located in the SL BWP, and M is greater than or equal to 1.
  • the processing unit 1520 is further configured to configure the M resource pools, and the M resource pools are configured with at least one parameter that is the same, and the at least one parameter is determined based on the first parameter.
  • the apparatus for configuring side-link resources in this embodiment of the present application can configure a resource pool for side-link communication of a terminal device in the SLBWP, and acquire the resources used in the SL-BWP through the SLBWP configuration information.
  • the first parameter common to the pools is such that at least one parameter determined based on the first parameter is applicable to the resource pool in the SL / BWP, that is, at least one parameter of the resource pool configured in the SL / BWP is the same. In this way, by configuring a resource pool in SL BWP, communication between different terminal devices can be achieved.
  • SLWP configuration information for indicating a first parameter common to the resource pool in SLWP, that is, for the The first parameter can be uniformly designed for the resource pool in SL BWP, which conforms to the concept of BWP and is simple in design.
  • the signaling overhead can be effectively reduced.
  • the device also includes:
  • the receiving unit 1520 is configured to receive the SLBWP configuration information, and the SLBWP configuration information is used to indicate the first parameter.
  • the first parameter includes at least one of the following: a waveform, an uplink and downlink configuration of a frame structure, or a parameter set, where the parameter set includes a subcarrier interval and / or a cyclic prefix CP.
  • the processing unit 1520 is specifically configured to determine the frequency domain positions of the M resource pools according to the bandwidth size of the SL BWP and the starting frequency domain unit of the SL BWP.
  • the ith resource pool of the M resource pools includes N subchannels, where N is an integer greater than or equal to 1, i ⁇ [1, M], and the processing unit 1520 is specifically configured to: Two parameters configure the frequency domain position of the i-th resource pool, wherein the second parameter includes at least one of the bandwidth of the sub-channel or the number of sub-channels N included in the i-th resource pool, among the N sub-channels The starting frequency domain unit of the first subchannel, and the first subchannel has the lowest or highest frequency domain position in the N subchannels.
  • the i-th resource pool is the first resource pool of the M resource pools, and the start frequency domain unit of the first subchannel in the first resource pool is the start of the SL BWP In a frequency domain unit, the first resource pool has the lowest or highest frequency domain position in the M resource pools.
  • the bandwidth of the subchannel is determined based on a mapping relationship between the bandwidth of the SLWP and the bandwidth of the subchannel.
  • the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the SL BWP by K 1 frequency domain unit, and K 1 is an integer greater than or equal to 0.
  • the index of the starting frequency domain unit of the first subchannel is the number of frequency domain units in which the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the SLBWP.
  • the first parameter includes the subcarrier interval
  • the processing unit 1520 is specifically configured to configure the M resource pools according to the subcarrier interval.
  • the device 1500 here is embodied in the form of a functional unit.
  • the term "unit” herein may refer to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor, or a group of processors) for executing one or more software or firmware programs. Processors, etc.) and memory, merge logic, and / or other suitable components that support the functions described.
  • ASIC application-specific integrated circuit
  • processor such as a shared processor, a proprietary processor, or a group of processors
  • memory merge logic, and / or other suitable components that support the functions described.
  • the device 1500 may specifically be a terminal device in the foregoing embodiment, and the device 1500 may be configured to execute various processes and / or steps corresponding to the terminal device in the foregoing method embodiment, To avoid repetition, we will not repeat them here.
  • FIG. 16 shows another apparatus 1600 for configuring a side link resource according to an embodiment of the present application.
  • the apparatus 1600 may be a network device or a chip in the network device.
  • the device 1600 includes: a sending unit 1610.
  • the sending unit 1610 is configured to send the SLW BWP configuration information of the side link bandwidth.
  • the SL BWP configuration information includes a first parameter.
  • the first parameter is a parameter for configuring the M resource pools in the SL BWP and the M resources.
  • the frequency domain resources of the pool are located in the SLWP, and M is an integer greater than or equal to 1.
  • the apparatus for configuring side-link resources in the embodiment of the present application can send the terminal device SLBB configuration information including the first parameter common to the resource pool, so that the terminal device can configure the resource pool in the SLBWP At least one parameter determined based on the first parameter is applicable to the resource pool in the SL BWP, that is, at least one parameter of the resource pool configured in the SL BWP is the same. In this way, the terminal device can be configured with a resource pool in the SLWP, and communication between different terminal devices can be realized.
  • the first parameter includes at least one of the following: a waveform, an uplink and downlink configuration of a frame structure, or a parameter set, where the parameter set includes a subcarrier interval and / or a cyclic prefix CP.
  • the ith resource pool of the M resource pools includes N subchannels, where N is an integer greater than or equal to 1, and i ⁇ [1, M], and the sending unit 1620 is further configured to send: Indication information of a second parameter, the second parameter including: at least one of a bandwidth size of the subchannel and a number N of subchannels included in the i-th resource pool, and a starting value of a first subchannel of the N subchannels In the starting frequency domain unit, the first subchannel has the lowest or highest frequency domain position in the N subchannels.
  • the i-th resource pool is the first resource pool of the M resource pools, and the start frequency domain unit of the first subchannel in the first resource pool is the start of the SL BWP In a frequency domain unit, the first resource pool has the lowest or highest frequency domain position in the M resource pools.
  • the bandwidth of the subchannel is determined based on a mapping relationship between the bandwidth of the SLWP and the bandwidth of the subchannel.
  • the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the SL BWP by K 1 frequency domain unit, and K 1 is an integer greater than or equal to 0;
  • the index of the starting frequency domain unit of the first subchannel is the number of frequency domain units in which the starting frequency domain unit of the first subchannel is offset from the starting frequency domain unit of the SLBWP.
  • the device 1600 here is embodied in the form of a functional unit.
  • the term "unit” herein may refer to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor, or a group of processors) for executing one or more software or firmware programs. Processors, etc.) and memory, merge logic, and / or other suitable components that support the functions described.
  • ASIC application-specific integrated circuit
  • processor such as a shared processor, a proprietary processor, or a group of processors
  • memory merge logic, and / or other suitable components that support the functions described.
  • the device 1600 may be specifically a network device in the foregoing embodiment, and the device 1600 may be configured to execute various processes and / or steps corresponding to the network device in the foregoing method embodiment, To avoid repetition, we will not repeat them here.
  • the apparatus 1500 and the apparatus 1600 of each of the foregoing solutions have a function of implementing corresponding steps performed by the terminal device or network device in the foregoing method; the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions; for example, the transmitting unit may be replaced by a transmitter, the receiving unit may be replaced by a receiver, and other units, such as a determining unit, may be replaced by a processor and executed separately. Sending and receiving operations and related processing operations in various method embodiments.
  • the device in FIG. 15 and FIG. 16 may also be a chip or a chip system, for example, a system on chip (SoC).
  • the receiving unit and the transmitting unit may be the transceiver circuit of the chip, which is not limited herein.
  • FIG. 17 shows another configuration side link resource setting 1700 provided by an embodiment of the present application.
  • the device 1700 includes a processor 1710, a transceiver 1720, and a memory 1730.
  • the processor 1710, the transceiver 1720, and the memory 1730 communicate with each other through an internal connection path.
  • the memory 1730 is used to store instructions, and the processor 1710 is used to execute the instructions stored in the memory 1730 to control the transceiver 1720 to send signals and / Or receive a signal.
  • the apparatus 1700 is configured to execute each process and step corresponding to a terminal device in the foregoing method embodiment.
  • the processor 1710 is configured to obtain a first parameter indicating that the first parameter is a parameter common to the M resource pools in the SL BWP, and the frequency domain resources of the M resource pools are located in the SL BWP.
  • M is an integer greater than or equal to 1; the M resource pools are configured, and the M resource pools are configured with at least one parameter that is the same, and the at least one parameter is determined based on the first parameter.
  • the apparatus 1700 is configured to execute each process and step corresponding to the terminal device in the foregoing method 200.
  • the apparatus 1700 is configured to execute each process and step corresponding to a network device in the foregoing method embodiment.
  • the transceiver 1720 is configured to send sideband bandwidth part SL and BWP configuration information, where the SLBWP configuration information includes a first parameter, and the first parameter is a parameter for configuring the M resource pools in the SLBWP.
  • the frequency domain resources of the M resource pools are located in the SL BWP, and M is an integer greater than or equal to 1.
  • the apparatus 1700 may be specifically a terminal device or a network device in the foregoing embodiment, and may be used to execute various steps and / or processes corresponding to the terminal device or the network device in the foregoing method embodiment.
  • the memory 1730 may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store information about the type of device.
  • the processor 1710 may be configured to execute instructions stored in the memory, and when the processor 1710 executes instructions stored in the memory, the processor 1710 is configured to execute each of the foregoing method embodiments corresponding to the terminal device or the network device Steps and / or processes.
  • the processor of the above device may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits (ASIC), field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware processor, or may be performed by a combination of hardware and software units in the processor.
  • the software unit may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like.
  • the storage medium is located in a memory, and the processor executes instructions in the memory and completes the steps of the foregoing method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • At least one means one or more, and “multiple” means two or more.
  • “And / or” describes the association relationship of related objects, and indicates that there can be three kinds of relationships. For example, A and / or B can indicate: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural. The character “/” generally indicates that the related objects are an "or” relationship. "At least one or more of the following” or similar expressions refers to any combination of these items, including any combination of single or plural items.
  • At least one item (a) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c may be single or multiple.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • the aforementioned storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or compact discs and other media that can store program codes .

Abstract

本申请提供了一种配置旁链路资源的方法和装置。该方法包括：网络设备为终端设备配置旁链路带宽部分SL BWP配置信息，其中，该SL BWP配置信息用于指示SL BWP中M个资源池公用的第一参数，该终端设备在配置SL BWP中的资源池的过程中，可以基于SL BWP配置信息配置SL BWP中的M个资源池，该M个资源池的至少一个参数相同，该至少一个参数是基于该第一参数确定的。因此，通过在SL BWP中配置资源池，可以实现不同终端设备的通信。

Description

配置旁链路资源的方法和装置
本申请要求于2018年9月27日提交中国专利局、申请号为201811134517.4、申请名称为“配置旁链路资源的方法和装置”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
本申请涉及通信领域，更具体地，涉及配置旁链路资源的方法和装置。
背景技术
在新无线(new radio，NR)系统中，引入了带宽部分(band width part，BWP)机制。BWP是系统带宽的一部分，是一段连续或不连续的频域资源，网络设备可以为终端设备配置一个或多个BWP，终端设备可以在一个或多个BWP中激活的BWP上与网络设备进行通信。
但是，上述方案在配置BWP时仅考虑了终端设备与网络设备之间的通信，未考虑不同终端设备之间的旁链路(slidelink，SL)通信。因此，需要提供一种技术，如何配置BWP，可以使得不同终端设备进行通信。
发明内容
本申请提供一种配置旁链路资源的方法和装置，可以实现不同终端设备之间的通信。
第一方面，提供了一种配置旁链路资源的方法，该方法包括：终端设备第一参数，该第一参数是该SL BWP中M个资源池公用的参数，该M个资源池的频域资源位于该SL BWP中，M为大于或等于1的整数；
该终端设备配置该M个资源池，该M个资源池配置有相同的至少一个参数，该至少一个参数是基于该第一参数确定的。
该第一参数可以是终端设备使用M个资源池实际通信过程中公用的参数，这种情况中，该至少一个参数即为该第一参数。该第一参数是BWP级别的参数，适用于一个SL BWP中的所有资源池，一个SL BWP中的所有资源池的参数特征都相同。
该M个资源池中任意两个资源池的频域资源可以完全重叠，可以不重叠，也可以部分重叠。
因此，本申请实施例的配置旁链路资源的方法，终端设备可以在SL BWP中配置用于终端设备进行旁链路通信的资源池，并且，通过SL BWP配置信息获取SL BWP中用于资源池公用的第一参数，使得基于该第一参数确定的至少一个参数都适用SL BWP中的资源池，即，在SL BWP中配置的资源池的至少一个参数都相同。这样，通过在SL BWP中配置资源池，可以实现不同终端设备的通信。
此外，本申请实施例可以不需要为每个资源池配置一个资源池的信令，而是配置用于 指示SL BWP中的资源池公用的第一参数的SL BWP配置信息，即，针对该第一参数，可以针对SL BWP中的资源池统一设计，符合BWP的概念，设计简单，尤其是在SL BWP中包括多个资源池的情况中，可以有效地减少信令开销。
可选地，该终端设备获取第一参数，包括：
该终端设备接收SL BWP配置信息，该SL BWP配置信息用于指示该第一参数。
可选地，该第一参数包括以下至少一个：波形、帧结构的上下行配置或参数集合，该参数集合包括子载波间隔和/或循环前缀CP。
其中，参数集合可以理解为帧结构参数，是用于表示帧结构的一套参数，可以包括子载波间隔或CP中的至少一个，也可以包括一个子帧或一个时隙包括的符号的数量的参数。
可选地，该第一参数还可以至少包括：
用于指示资源池中包括的物理旁链路控制信道(physical sidelink control channel,PSCCH)和物理旁链路共享信道(physical sidelink shared channel,PSSCH)是否始终相邻的参数adjacency PSCCH-PSSCH，即在一个SL BWP中的所有资源池的PSCCH和PSSCH是否始终相邻的特征可以是相同的。
用于指示同步配置的参数sync Config Index，即在一个SL BWP中的所有资源池的同步配置参数可以是相同的。
用于指示允许的同步类型的参数SL-Sync Allowed，即在一个SL BWP中的所有资源池的允许的同步类型的参数可以是相同的。其中，同步类型可以是包括卫星同步，基站同步，终端设备同步等同步类型。
用于表示区域的区域标识Zone ID，即在一个SL BWP中的所有资源池对应的区域标识可以是相同的。其中，区域可以是根据地理位置划分的区域，具体的区域划分可以是预定义的，或者通过网络设备配置给终端设备的。所述区域标识用于标识区域。
可选地，该终端设备配置该M个资源池，包括：
该终端设备根据该SL BWP的带宽大小和该SL BWP的起始频域单元确定该M个资源池的频域位置。
因此，本申请实施例的配置旁链路资源的方法，终端设备可以根据SL BWP的带宽大小和SL BWP的起始频域单元确定M个资源池的频域位置，避免了信令指示资源池的频域位置，降低指示开销。同时，资源池位于SL BWP有利于sidelink传输与Uu空口(universal UE to network interface)传输的共存。其中，Uu空口用于网络设备和终端设备之间的通信。另外，SL BWP的带宽可以对应于终端的射频带宽，通过配置多个SL BWP可以支持多种射频带宽能力。针对每个SL BWP可以配置不同的参数(例如，帧结构参数)，进而可以支持灵活的参数配置。此外，不同的SL BWP的带宽大小配置不同也可以实现终端设备的节能的效果。
可选地，该M个资源池中的第i个资源池包括N个子信道，N为大于或等于1的整数，i∈[1,M]，以及；
该终端设备根据该SL BWP的带宽大小和该SL BWP的起始频域单元配置该M个资源池的频域位置，包括：
该终端设备根据第二参数配置该第i个资源池频域位置，其中，该第二参数包括：
子信道的带宽大小或该第i个资源池包括的子信道的数量N中的至少一个，该N个子 信道中第一个子信道的起始频域单元，该第一个子信道在该N个子信道中的频域位置最低或最高。
可以这么理解，该第二参数是终端设备配置给每个资源池使用的专用参数，M个资源池可以对应M个第二参数，每个资源池通过对应的第二参数确定。
子信道的带宽大小可以是一个参考值，可以用于确定每个子信道的带宽大小。该参考值可以是至少部分子信道的带宽大小，这里的至少部分子信道的带宽大小表示所有子信道的带宽大小或部分子信道的带宽大小。
因此，本申请实施例的配置旁链路资源的方法，终端设备通过与子信道相关的参数(例如，第二参数)确定每个资源池的频域位置，可以避免直接配置资源池，通过配置子信道的相关参数可以确定子信道，通过子信道既可以降低后续控制信息中的传输资源的指示开销，又可以确定资源池。
可选地，所述方法还包括：
该终端设备接收用于指示该第二参数的指示信息。
因此，本申请实施例的配置旁链路资源的方法，网络设备通过信令指示与该子信道相关的参数(例如，第二参数)，一个子信道可以包括一个或多个资源块，相比于直接通过资源块的指示方式可以降低传输资源的指示开销。
可选地，该第i个资源池为该M个资源池中的第一个资源池，该第一个资源池中的第一个子信道的起始频域单元是该SL BWP的起始频域单元，该第一个资源池在该M个资源池中的频域位置最低或最高；和/或，
若该第二参数包括该子信道的带宽大小，则该子信道的带宽大小是基于该SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定的。
可选地，该SL BWP的带宽大小通过该SL BWP的带宽大小的区间确定。
因此，本申请实施例的配置旁链路资源的方法，通过将SL BWP的起始频域单元确定为M个资源池中第一个资源池的第一个子信道的起始频域单元，可以避免指示第一个子信道的起始频域单元，降低信令开销。同时,SL BWP的起始资源单元作为第一个子信道的起始资源单元，也可以充分利用SL BWP的资源，避免资源浪费；通过SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定该子信道的大小，可以避免指示子信道的带宽大小，可以降低信令开销。通过根据SL BWP的带宽大小确定子信道的带宽大小，可以针对不同的SL BWP的带宽大小确定不同的子信道的带宽大小，可以避免子信道的个数过多，合理进行子信道的设计。
可选地，该第一个子信道的起始频域单元相对于该SL BWP的起始频域单元偏移K 1个频域单元，K 1为大于或等于0的整数。
可以理解，包括该第一个子信道在内的所有子信道的起始频域单元的参考位置是SL BWP的起始频域单元。
因此，通过将SL BWP的起始频域单元作为子信道的起始频域单元的参考位置，可以使得系统基于这种方式生成的索引的数值较小，相应的，索引占用的比特位也较少。在通过索引指示SL BWP中的频域单元的情况下，可以有效地减少占用的比特位，从而节省资源。
可选地，该第一个子信道的起始频域单元相对于第一载波的起始频域单元偏移K 2个 频域单元，该第一载波是该第i个资源池所属的载波，K 2为大于或等于0的整数。
可以理解，包括该第一个子信道在内的所有子信道的起始频域单元的参考位置是载波的起始频域单元。
可选地，该第一个子信道的起始频域单元的索引值为该第一子信道的起始频域单元相对于该第一载波的起始频域单元偏移的频域单元的数量。
可选地，该第一参数包括该子载波间隔，以及，
该终端设备配置该M个资源池，包括：
该终端设备根据该子载波间隔配置该M个资源池。
也就是说，终端设备基于该第一参数中的子载波间隔，获得的用于配置资源池的其余参数(例如，第二参数)是与该子载波间隔对应的参数。
可选地，该第二参数是基于该SL BWP的带宽大小和该SL BWP的起始频域单元确定的。
可选地，该M个资源池都为发送资源池；或，
该M个资源池都为接收资源池；或，
在M大于1的情况下，该M个资源池中的部分资源池为发送资源池，该M个资源池中除该部分资源池以外的资源池为接收资源池。
可选地，该方法还包括：
该终端设备确定该M个资源池的索引，其中，
该M个资源池的索引是基于该SL BWP包括的资源池的数量确定的，或，
该M个资源池的索引是基于第一载波中包括的资源池的数量确定的，该第一载波为该SL BWP所属的载波。
可选地，该方法还包括：
该终端设备发送或接收用于指示该M个资源池的索引的索引信息。
第二方面，提供了一种配置旁链路资源的方法，该方法包括：
网络设备发送旁链路带宽部分SL BWP配置信息，该SL BWP配置信息包括第一参数，该第一参数是配置该SL BWP中M个资源池公用的参数，该M个资源池的频域资源位于该SL BWP中，M为大于或等于1的整数。
因此，本申请实施例的配置旁链路资源的方法，网络设备通过向终端设备发送包括用于资源池公用的第一参数的SL BWP配置信息，可以使得终端设备在SL BWP中配置资源池时基于该第一参数确定的至少一个参数都适用SL BWP中的资源池，即，在SL BWP中配置的资源池的至少一个参数都相同。这样，可以使得终端设备在SL BWP中配置资源池，可以实现不同终端设备的通信。
此外，本申请实施例可以不需要为每个资源池配置一个资源池的信令，而是通过配置用于指示SL BWP中的资源池公用的第一参数的SL BWP配置信息，当SL BWP中包括多个资源池时，可以有效地减少信令开销。
可选地，该第一参数包括以下至少一个：波形、帧结构的上下行配置或参数集合，该参数集合包括子载波间隔和/或循环前缀CP。
可选地。该M个资源池中的第i个资源池包括N个子信道，N为大于或等于1的整数，i∈[1,M]，该方法还包括：
该网络设备发送用于指示第二参数的指示信息，该第二参数包括：
该子信道的带宽大小和该第i个资源池包括的子信道的数量N中的至少一个，该N个子信道中第一个子信道的起始频域单元，该第一个子信道在该N个子信道中的频域位置最低或最高。
因此，本申请实施例的配置旁链路资源的方法，终端设备通过与子信道相关的参数(例如，第二参数)确定每个资源池的频域位置，可以避免直接配置资源池，通过配置子信道的相关参数可以确定子信道，通过子信道既可以降低传输资源的指示开销(例如，指示信息)，又可以确定资源池。
可选地，该第i个资源池为该M个资源池中的第一个资源池，该第一个资源池中的第一个子信道的起始频域单元是该SL BWP的起始频域单元，该第一个资源池在该M个资源池中的频域位置最低或最高；和/或，
若该第二参数包括该子信道的带宽大小，则该子信道的带宽大小是基于该SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定的。
这样，将SL BWP的起始频域单元确定为M个资源池中第一个资源池的第一个子信道的起始频域单元，可以避免指示第一个子信道的起始频域单元，降低信令开销。同时,SL BWP的起始资源单元作为第一个子信道的起始资源单元，也可以充分利用SL BWP的资源，避免资源浪费；通过SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定该子信道的大小，可以避免指示子信道的带宽大小，可以降低信令开销。通过根据SL BWP的带宽大小确定子信道的带宽大小，可以针对不同的SL BWP的带宽大小确定不同的子信道的带宽大小，可以避免子信道的个数过多，合理进行子信道的设计。
可选地，该第一个子信道的起始频域单元相对于该SL BWP的起始频域单元偏移K 1个频域单元，K 1为大于或等于0的整数。
因此，通过将SL BWP的起始频域单元作为子信道的起始频域单元的参考位置，可以使得系统基于这种方式生成的索引的数值较小，相应的，索引占用的比特位也较少。在通过索引指示SL BWP中的频域单元的情况下，可以有效地减少占用的比特位，从而节省资源。
可选地，该第一个子信道的起始频域单元的索引值为该第一子信道的起始频域单元相对于该SL BWP起始频域单元偏移的频域单元的数量。
可选地，该第一个子信道的起始频域单元相对于第一载波的起始频域单元偏移K 2个频域单元，该第一载波是该第i个资源池所属的载波，K 2为大于或等于0的整数。
可选地，该第一个子信道的起始频域单元的索引为该第一子信道的起始频域单元相对于该第一载波的起始频域单元偏移的频域单元的数量。
可选地，该第二参数是基于该SL BWP的带宽大小和该SL BWP的起始频域单元确定的。
可选地，该M个资源池都为发送资源池；或，
该M个资源池都为接收资源池；或，
在M大于1的情况下，该M个资源池中的部分资源池为发送资源池，该M个资源池中除该部分资源池以外的资源池为接收资源池。
可选地，该方法还包括：
该终端设备确定该M个资源池的索引，其中，
该M个资源池的索引是基于该SL BWP包括的资源池的数量确定的，或，
该M个资源池的索引是基于第一载波中包括的资源池的数量确定的，该第一载波为该SL BWP所属的载波。
可选地，该方法还包括：
该网络设备发送或接收用于指示该M个资源池的索引的索引信息。
第三方面，提供了一种配置旁链路资源的装置，所述装置可以用来执行第一方面及其任意可能的实现方式中的终端设备的操作。具体地，所述装置可以包括用于执行上述第一方面的任意可能的实现方式中的终端设备的各个操作的模块单元。
第四方面，提供了一种配置旁链路资源的装置，所述装置可以用来执行第二方面及其任意可能的实现方式中的网络设备的操作。具体地，所述装置可以包括用于执行上述第二方面的任意可能的实现方式中的网络设备的各个操作的模块单元。
第五方面，提供了一种终端设备，所述终端设备包括：处理器、收发器和存储器。其中，所述处理器、收发器和存储器之间通过内部连接通路互相通信。所述存储器用于存储指令，所述处理器用于执行所述存储器存储的指令。当所述处理器执行所述存储器存储的指令时，所述执行使得所述终端设备执行第一方面的任意可能的实现方式中的任一方法，或者所述执行使得所述终端设备实现第五方面提供的装置。
第六方面，提供了一种网络设备，所述网络设备包括：处理器、收发器和存储器。其中，所述处理器、收发器和存储器之间通过内部连接通路互相通信。所述存储器用于存储指令，所述处理器用于执行所述存储器存储的指令。当所述处理器执行所述存储器存储的指令时，所述执行使得所述网络设备执行第二方面的任意可能的实现方式中的任一方法，或者所述执行使得所述网络设备实现第六方面提供的装置。
第七方面，提供了一种芯片系统，包括存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从存储器中调用并运行所述计算机程序，使得安装有所述芯片系统的通信设备执行上述第一方面至第二方面及其可能的实施方式中的任一方法。
第八方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被通信设备(例如，网络设备或终端设备)的通信单元、处理单元或收发器、处理器运行时，使得通信设备执行上述第一方面至第二方面及其可能的实施方式中的任一方法。
第九方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序，所述程序使得通信设备(例如，网络设备或终端设备)执行上述第一方面至第二方面及其可能的实施方式中的任一方法。
第十方面，提供了一种计算机程序，所述计算机程序在某一计算机上执行时，将会使所述计算机实现上述第一方面至第二方面及其可能的实施方式中的任一方法。
附图说明
图1是适用于本申请实施例的移动通信系统的架构示意图。
图2是本申请实施例的系统带宽的带宽部分的示意图。
图3是本申请实施例的带宽部分中的频域资源分别在载波和带宽部分中的索引的示 意图。
图4是本申请实施例的频域资源的示意图。
图5是本申请实施例的配置旁链路资源的方法的示意性交互图。
图6是本申请实施例的带宽部分与载波的位置关系的示意图。
图7是本申请实施例的资源池中的子信道的示意图。
图8是SL BWP中的资源池的示意图。
图9是本申请实施例的资源池中调度资源和数据资源的位置关系的示意图。
图10是本申请实施例的资源池中调度资源和数据资源的位置关系的另一示意图。
图11是本申请实施例的带宽部分中的频域资源分别在载波和带宽部分中的索引的示意图。
图12是本申请实施例的带宽部分中的频域资源分别在载波和带宽部分中的索引的另一示意图。
图13是本申请实施例的带宽部分中资源池的索引的示意图。
图14是本申请实施例的带宽部分中资源池的索引的另一示意图。
图15是本申请实施例提供的配置旁链路资源的一装置的示意图。
图16是本申请实施例提供的配置旁链路资源的又一装置的示意图。
图17是本申请实施例提供的配置旁链路资源的另一装置的示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通信(global system for mobile communications，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、未来的第五代(5th generation，5G)系统或新无线(new radio，NR)等。
本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、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、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是全球移动通信(global system for mobile communications，GSM)系统或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分 多址(wideband code division multiple access，WCDMA)系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(evolved NodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
本发明实施例对于同构网络和异构网络的场景均适用，同时对于传输点也无限制，可以是宏基站与宏基站、微基站与微基站和宏基站与微基站间的多点协同传输。此外，本发明实施例既适用于低频场景(sub 6G)，也适用于高频场景(6G以上)。
在本申请实施例中，终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。
另外，本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
图1是适用于本申请实施例的移动通信系统的架构示意图。如图1所示，该移动通信系统包括核心网设备110、无线接入网设备120和至少一个终端设备(如图1中的终端设备130和终端设备140)。终端设备通过无线的方式与无线接入网设备相连，无线接入网设备通过无线或有线方式与核心网设备连接。核心网设备与无线接入网设备可以是独立的不同的物理设备，也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上，还可以是一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。终端设备可以是固定位置的，也可以是可移动的。图1只是示意图，该通信系统中还可以包括其它网络设备，如还可以包括无线中继设备和无线回传设备，在图1中未画出。本申请的实施例对该移动通信系统中包括的核心网设备、无线接入网设备和终端设备的数量不做限定。
为了便于理解，首先对本申请实施例涉及的相关术语和相关技术做一简单介绍。
资源单元、频域单元
资源单元可用于作为资源在时域、频域或时频域占用的资源的计量单位。在本申请实 施例中，资源单元例如可以包括符号、资源元素(resource element，RE)、资源块(resource block，RB)、子载波等中至少一项，本申请对此不做限定。在本申请实施例中，资源单元可以作为资源在频域上占用的资源的计量单位，因此，本申请实施例中涉及到的资源单元的描述可以理解为在频域上的资源单元。并且，为了描述方便，将频域上的资源单元可以称为频域单元。
帧结构
帧结构可以包括无线帧，子帧，时隙，微时隙，迷你时隙，符号等时域单位。
一个无线帧的持续时长可以是10毫秒(ms)。一个无线帧可以包括一个或多个子帧，例如，若一个子帧的持续时长是1毫秒，则一个无线帧可以包括10个子帧，一个子帧可以包括一个或者多个时隙。不同的子载波间隔可以有不同的时隙长度，例如，子载波间隔为15kHz时，一个时隙可以为1ms；子载波间隔为30kHz时，一个时隙可以为0.5ms，以此类推。一个时隙可以包括一个或多个符号，例如，正常CP下一个时隙可以包括14个符号，扩展CP下一个时隙可以包括12个符号。作为示例而非限定，表1所示为正常CP下的子帧、无线帧和时隙的长度以及子帧、无线帧和时隙对应的子载波间隔。
表1
Figure PCTCN2019107240-appb-000001
可选地，一个子帧可以包括一个或多个微时隙。一个时隙可以包括一个或多个微时隙(或迷你时隙)。其中，微时隙可以是比时隙更小的单位，一个微时隙可以包括一个或多个符号，例如，一个微时隙(或迷你时隙)可以包括2个符号，4个符号或7个符号等。
帧结构参数
帧结构参数也可以简称为参数或者参数集合，在标准讨论中统称为numerology，是表示帧结构的一套参数，至少包括子载波间隔和/或循环前缀(cyclic prefix，CP)。可选地，帧结构参数还可以包括一个无线帧、子帧、时隙，微时隙或迷你时隙等包括的符号的数量等参数。可选地，不同的频段可以采用不同的帧结构的参数，即，不同的频段可以采用不同的子载波间隔(例如，15kHz、30kHz或60kHz等)，采用不同的CP(例如，正常CP,normal CP,NCP；扩展CP，extended CP,ECP)。当然，不同的频段也可以采用相同的帧结构参数，相同的频段也可以采用不同的帧结构参数。
上下行配置
无线通信中的符号类型可以包括上行符号、下行符号和灵活符号等类型。
在下行无线帧中的一个时隙中，终端设备可以假设下行传输仅发生在下行符号和/或灵活符号上。在上行无线帧中的一个时隙中，终端设备可以假设上行传输仅发生在上行符号和/或灵活符号上。
上下行配置是指用于确定符号类型的配置。例如，可以根据上下行配置确定一个时隙或多个时隙中的符号类型，也可以根据上下行配置确定一个子帧或多个子帧中的符号类 型，也可以根据上下行配置确定一个无线帧或多个无线帧中的符号类型，也可以根据上下行配置确定一个微时隙或多个微时隙(或迷你时隙)中的符号类型。
上下行配置也可以称为时分复用上下行配置，或者，也可以称为时隙格式配置，或者，也可以称为帧结构上下行配置等。此外，上下行配置的信令可以是高层信令也可以是物理层信令。
BWP
BWP是系统带宽的一部分，是一段连续或不连续的频域资源，包括若干个连续或不连续的一个或多个频域单元(例如，子载波)。
在本申请实施例中，带宽部分也可以称为带宽资源，载波带宽部分(carrier bandwidth part)，频率资源部分，部分频率资源，子带(subband)，窄带(narrowband)或者其它名称。
对于不同的带宽部分，两个带宽部分的频域资源可以部分重叠、完全重叠或完全不重叠，本申请实施例对此不作限定。例如，图2所示为系统带宽中的带宽部分的示意图，系统带宽中包括带宽部分0、带宽部分1和带宽部分2，3个带宽部分互不重叠。再例如，在基于正交频分复用技术(orthogonal frequency division multiplexing，OFDM)的通信系统中，两个带宽部分的频域资源完全重叠，但是帧结构(例如，子载波间隔和/或CP长度)不同。
频域单元的公共索引
频域单元的公共(common)索引表示频域单元在一个载波中的索引，也就是说，频域单元的公共索引是以载波作为参考对象设计的。可选的，该载波可以是子载波间隔级的载波。不同的子载波间隔对应不同的载波。具体而言，从载波的起始频域单元开始按照频率增大或减小的方向编号，使得载波中的任一个频域单元是相对于载波的起始频域单元偏移S1个频域单元后的频域单元，S1为等于或等于0的整数。
其中，在一个载波中，不同的子载波间隔可以对应不同的频域单元的索引。例如，以频域单元为RB对应的频域资源为例，15kHz的RB0和RB1的频域资源可以对应30kHz的RB0的频域资源，30kHz的RB0和RB1的频域资源可以对应60kHz的RB0的频域资源。
例如，如图3所示，在载波中，载波中的起始频域单元的索引(即，公共索引)为0，按照频域增大的方向索引依次增加。
频域单元在BWP中的索引
频域单元在一个BWP中的索引是以BWP作为参考对象设计的。具体而言，从BWP的起始频域单元开始按照频率增大或减小的方向编号，使得BWP中的任一个频域单元是相对于BWP的起始频域单元偏移S2个频域单元后的频域单元，S2为大于或等于0的整数。
继续参考图3，载波包括BWP1，BWP1的起始频域单元的公共索引为9，在BWP1中的索引为0，从BWP1的起始频域单元开始按照频率增大的方向编号，使得BWP中的最后一个频域单元在BWP中的索引为39(BWP的最后一个频域单元的公共索引为48)。
BWP的配置
关于BWP的配置，网络设备可以为终端设备配置BWP的起始频域单元、BWP的带宽大小和帧结构参数(numerology)，从而使得终端设备确定该BWP。其中，BWP的起始频域单元是BWP中频域位置最高或最低的频域单元，带宽大小可以表示为BWP中包括的频 域单元的数量。
在本申请实施例中，终端设备可以通过下述三个偏移确定BWP的起始频域单元。
下面，为了描述方便，以频域单元为RB对应的频域资源为例，对终端设备确定BWP的起始频域单元的过程进行说明。
第一偏移量(offset1)
该第一偏移量是参考点相对于参考频率位置(reference location)偏移的带宽大小(例如，RB的数量)。终端设备根据参考频率位置和相对于该参考频率位置的第一偏移量可以确定参考点，进而可以根据该参考点确定该参考点对应的RB的公共索引。其中，参考点可以理解为载波的起始RB。下面，对不同场景中的参考频率位置进行说明，示例性地，
对于主小区下行载波，参考频率位置根据终端设备接入的同步信号块的频率最低的RB确定；
对于非配对频谱主小区上行载波，参考频率位置根据终端设备接入的同步信号块的频率最低的RB确定；
对于配对频谱主小区上行载波，参考频率位置根据网络设备配置的频率位置确定，该参考频率位置可以对应一个绝对频点号(absolute radio frequency channel number，ARFCN)；
对于辅小区，参考频率位置可以根据网络设备配置的频率位置确定，该频率位置可以对应一个绝对频点号ARFCN；
对于增补上行载波，参考频率位置根据网络设备配置的频率位置确定，该频率位置可以对应一个绝对频点号ARFCN。
第二偏移量(offset2)
该第二偏移量是虚拟载波(virtual carrier)的起始RB相对于参考点偏移的带宽大小(例如，RB的数量)。终端设备根据参考点和第二偏移量确定虚拟载波的起始RB，终端设备还需要根据进一步网络设备配置的虚拟载波的带宽确定虚拟载波。
这里，虚拟载波也可以称为逻辑载波、终端设备特定载波、可用RB、可用带宽等，终端设备需要根据虚拟载波确定资源网格(resource grid)、正交频分复用(orthogonal frequency division multiplexing，OFDM)基带信号，放置射频(radio frequency，RF)收发器和/或进行滤波。具体而言，OFDM基带信号的生成根据虚拟载波的大小，即该虚拟载波中包含的RB个数确定，以频率连续的虚拟载波为例，假设该虚拟载波中包含
Figure PCTCN2019107240-appb-000002
个RB，则OFDM基带信号可以表示为：
Figure PCTCN2019107240-appb-000003
其中，
Figure PCTCN2019107240-appb-000004
表示一个RB中包括的子载波的数量，例如
Figure PCTCN2019107240-appb-000005
k 0表示网络设备配置的子载波级偏移；Δf表示子载波间隔；N CP,l表示第l个符号的CP长度；T c表示预定义的时域单元，可以根据系统支持的最大子载波间隔和FFT点数确定，例如，系统支持的最大子载波间隔为480kHz，FFT点数为4096，则T c＝1/(480·10 3·4096)；t start,l表示第l个符号的时域位置，或者和第0个符号之间的时域偏移。
第三偏移量(offset3)
第三偏移量表示BWP的起始RB相对于虚拟载波的起始RB的偏移的带宽大小(例如， RB的数量)。终端设备可以根据该第三偏移量确定BWP的起始RB。
可以看出，BWP的起始频域单元是相对于参考点而言的，也就是相对于载波的起始频域单元而言的。
这样，在基于上述3个偏移量确定BWP的起始RB后，可以根据起始RB和BWP中包括的RB的数量和帧结构参数，确定该BWP在载波中的位置。
图4所示为本申请实施例的频域资源。如图4所示，终端设备可以根据第一偏移量(offset1)和参考频率位置确定参考点A，确定参考点A对应的RB，根据参考点A对应的RB和第二偏移量(offset2)确定虚拟载波的起始RB，根据虚拟载波的起始RB和第三偏移量(offset3)确定BWP的起始RB；根据BWP的起始RB、BWP的带宽(例如，5个RB)和帧结构参数确定BWP在载波中的位置。
旁链路通信
终端设备之间的通信称为旁链路通信。例如，车联网系统中的通信方式可以统称为V2X通信，其中，V表示车辆，X代表任何事物。可选地，该V2X通信可以包括：车辆与车辆(vehicle to vehicle，V2V)通信，车辆与路边基础设施(vehicle to infrastructure，V2I)通信、车辆与行人之间的通信(vehicle to pedestrian，V2P)或车辆与网络(vehicle to network，V2N)通信等。
以上，对本申请实施例涉及的相关术语和相关技术做了介绍，下面，结合图5至图14，对本申请实施例进行详细说明。
在本申请实施例中，通过在BWP中进一步配置能够用于终端设备进行SL通信的资源池，可以实现终端设备的SL通信。在本申请实施例中，将终端设备能够进行SL通信的BWP统称为SL BWP。
图5所示为本申请实施例的配置旁链路资源的方法的示意性交互图。下面，对本申请实施例的各个步骤进行说明。该实施例可以作为独立的实施例，也可以与本发明中的其他实施例相结合，本申请对此不作限定。
S110，终端设备获取第一参数，该第一参数是所述SL BWP中M个资源池公用的参数，该M个资源池的频域资源位于所述SL BWP中，M为大于或等于1的整数。
S120，该终端设备配置该M个资源池，该M个资源池的至少一个参数相同，该至少一个参数是基于该第一参数确定的。
具体而言，终端设备可以基于上文所述的确定BWP的方式确定本申请实施例的SL BWP，在配置SL BWP中的资源池的过程中，获取资源池公用的第一参数，基于该第一参数可以确定该M个资源池的相关参数(即，至少一个参数)，即该M个资源池的至少一个参数相同。
该M个资源池中任意两个资源池的频域资源可以完全重叠，可以不重叠，也可以部分重叠，本申请实施例不限于此。需要说明的是，当该M个资源池中任意两个资源池的频域资源存在重叠(完全重叠或部分重叠)时，可以为频域资源存在重叠的资源池配置不同的帧结构(例如，子载波间隔或CP)，使得频域资源重叠的资源池传输不同数据。
下面，对该第一参数与该至少一个参数的关系进行说明。
在一种情况中，第一参数可以是终端设备使用M个资源池实际通信过程中公用的参数，这种情况下，该终端设备可以将SL BWP配置信息中的第一参数确定为该M个资源 池的相关参数(即，该至少一个参数)，这样，使得该M个资源池的该至少一个参数都相同。应理解，这种情况中，该至少一个参数即为该第一参数。也可以理解，该第一参数是BWP级别的参数，适用于一个SL BWP中的所有资源池，一个SL BWP中的所有资源池的参数特征都相同。
在另一种情况中，该第一参数可以是与预配置的M个资源池公用的参数，或者说，是网络设备或系统期望的M个资源池都公用的参数，因而，终端设备在配置该M个资源池时可以使用该第一参数，比如该第一参数中可以包括多个参数取值。不过，在实际配置每个资源池时可以从该第一参数中选择至少一个参数取值配置资源池，并且，从该第一参数中确定的至少一个参数是该M个资源池都适用的参数，这样，使得该M个资源池的该至少一个参数都相同。这种情况下，该至少一个参数等于该第一参数的一个或多个取值。可选地，该第一参数包括以下至少一个：波形、帧结构的上下行配置或参数集合，该参数集合包括子载波间隔和/或循环前缀CP。
波形表示的是传输数据采用的是单载波还是多载波，比如是循环前缀正交频分复用多址(cyclic prefix-orthogonal frequency division multiplexing access，CP-OFDMA)还是离散傅里叶变换扩展的正交频分复用多址(discrete fourier transform-spread-OFDMA,DFT-S-OFDMA)。
帧结构的上下行配置表示SL BWP中用于上行传输的资源、用于下行传输的资源和预留资源，或者，根据帧结构的上下行配置可以确定SL BWP中用于上行传输的资源、用于下行传输的资源和预留资源中的至少一项。应理解，此处的预留资源可以是由上文所述的一个或多个灵活符号组成的资源，用于上行传输的资源可以是由上文所述的一个或多个上行符号组成的资源，用于下行传输的资源可以是由上文所述的一个或多个下行符号组成的资源。可选地，在SL通信中，不能使用用于下行传输的资源，或者，在SL通信中可以使用用于上行传输的资源和/或预留的资源；参数集合可以理解为上文所述的帧结构参数，是用于表示帧结构的一套参数，可以包括子载波间隔和CP中的至少一个，也可以包括一个子帧或一个时隙包括的符号的数量的参数，此处不做限定。
需要说明的是，本申请实施例中的“至少一个”表示“一个或多个”，两种描述可以替换。
作为实例而非限定，该第一参数还可以包括如下一个或多个参数：
用于指示资源池中包括的物理旁链路控制信道(physical sidelink control channel,PSCCH)和物理旁链路共享信道(physical sidelink shared channel,PSSCH)是否始终相邻的参数adjacency PSCCH-PSSCH，即在一个SL BWP中的所有资源池的PSCCH和PSSCH是否始终相邻的特征可以是相同的。
用于指示同步配置的参数sync Config Index，即在一个SL BWP中的所有资源池的同步配置参数可以是相同的。
用于指示允许的同步类型的参数SL-Sync Allowed，即在一个SL BWP中的所有资源池的允许的同步类型的参数可以是相同的。其中，同步类型可以是包括卫星同步，基站同步，终端设备同步等同步类型。
用于表示区域的区域标识Zone ID，即在一个SL BWP中的所有资源池对应的区域标识可以是相同的。其中，区域可以是根据地理位置划分的区域，具体的区域划分可以是预定 义的，或者通过网络设备配置给终端设备的。所述区域标识用于标识区域。应理解，上述仅是对第一参数的举例说明，本申请实施例并不限于此，配置一个SL BWP中的所有资源池都公用的参数都可以归为该第一参数，不应对本申请实施例构成限定。
作为S110的可选步骤，可选地，在S111中，网络设备发送该SL BWP配置信息。其中，网络设备可以通过RRC信令，或系统消息发送该SL BWP配置信息。或者也可以通过其他信令发送，本申请对此不作限定。
作为示例而非限定，该配置信息也可以是预定义或预配置的，例如，终端设备在出厂时预定义的或运营商预配置的。
本申请实施例的配置旁链路资源的方法，可以在SL BWP中配置用于终端设备进行旁链路通信的资源池，并且，通过SL BWP配置信息获取SL BWP中用于资源池公用的第一参数，使得基于该第一参数确定的至少一个参数都适用SL BWP中的资源池，即，在SL BWP中配置的资源池的至少一个参数都相同。这样，通过在SL BWP中配置资源池，可以实现不同终端设备的通信。
此外，本申请实施例可以不需要为每个资源池配置一个资源池的信令，而是通过配置用于指示SL BWP中的资源池公用的第一参数的SL BWP配置信息，当SL BWP中包括多个资源池时，可以有效地减少信令开销。
终端设备使用资源池或SL BWP与其他终端设备通信时，需要确知哪些资源池是用于接收数据哪些资源池是用于发送数据，因此，配置的SL BWP中的M个资源池可以是以下任一种类型的资源池：
该M个资源池都为发送资源池；或，
该M个资源池都为接收资源池；或，
在M大于1的情况下，该M个资源池中的部分资源池为发送资源池，该M个资源池中除该部分资源池以外的资源池为接收资源池。
其中，发送资源池表示该资源池用于发送数据，接收资源池表示该资源池用于接收数据，具体是用于接收其他终端设备发送的数据。
从SL BWP的角度来说：
该SL BWP为发送SL BWP，或，
该SL BWP为接收SL BWP，或，
该SL BWP既可以为发送SL BWP也可以为接收SL BWP。
也就是说，若该SL BWP为发送SL BWP，则该SL BWP中的M个资源池都是发送资源池；若该SL BWP为接收SL BWP，则该SL BWP中的M个资源池都为接收资源池；若该SL BWP既可以为发送SL BWP也可以为接收SL BWP，则该M个资源池中可以有发送资源池，也可以有接收资源池，或者，该M个资源池的部分资源池为发送资源池，该M个资源池中除该部分资源池以外的资源池为接收资源池。
本申请实施例描述了一个SL BWP的配置方式，实现中，终端设备可以为SL通信配置多个SL BWP，每个SL BWP的配置方式都相同，都可以通过本申请实施例的配置方式实现。下面，关于多个SL BWP相关特性做一描述。
可选地，该多个SL BWP可以位于同一个载波，也可以位于不同载波。
如图6所示，左边的图中的两个SL BWP的起始频域单元都是相对于载波1的参考点 A而言，都位于载波1中；右边的图中的两个SL BWP分别位于不同载波中，SL BWP1的起始频域单元是相对于载波1的参考点A而言，SL BWP1位于载波1中，SL BWP2的起始频域单元是相对于载波2的参考点A而言，SL BWP2位于载波2中。
可选地，任意两个SL BWP中的资源池的属性可以相同，也可以不同。例如，以两个SL BWP为例：一个SL BWP用于发送数据，另一个SL BWP用于接收数据；或者，两个SL BWP都用于发送数据和/或接收数据。
可选地，多个SL BWP的第一参数可以相同，也可以不同。例如，以两个SL BWP为例，两个SL BWP的帧结构参数和/或波形可以相同，或者两个SL BWP的帧结构参数和/或波形可以不同，或者两个SL BWP的帧结构的上下行配置可以不同。
以上，对本申请实施例的SL BWP做了描述，下面，对SL BWP中的资源池进行详细描述。该实施例可以作为独立的实施例，也可以与本发明中的其他实施例相结合，本申请对此不作限定。
在本申请实施例中，资源池是在SL BWP中配置的，即一个资源池的频域资源位于一个SL BWP中，或者，也可以称为一个资源池是关联一个SL BWP的。
可选地，一个资源池的频域资源不能超出一个SL-BWP，或者一个资源池的频域资源不能位于两个SL-BWP中。
例如，可以在SL BWP的配置信息中指示一个或多个资源池，即该资源池的频域资源位于所属SL BWP中。或者，在配置资源池时可以指示SL BWP标识，即该资源池与该SL BWP关联，即该资源池的频域资源位于所关联的SL BWP中。
基于上述描述可以明显看出，SL BWP中的资源池的频域位置与SL BWP相关，具体如下：
终端设备根据该SL BWP的带宽大小和该SL BWP的起始频域单元确定该M个资源池的频域位置。其中，SL BWP的带宽大小可以表示为SL BWP中包括的频域单元的数量，比如包括的资源块的个数。
本申请实施例提供了4种确定M个资源池的频域位置的方式(即，方式1、方式2、方式3和方式4)，下面，对这4种方式分别进行说明。具体的，可以采用如下方式中的一种或多种。该实施例可以作为独立的实施例，也可以与本发明中的其他实施例相结合，本申请对此不作限定。
方式1
在SL通信中，为了降低确定传输资源的指示开销，终端设备可以配置子信道，一个子信道可以包括一个或多个频域单元，比如频域单元为资源块。一个或多个子信道可以构成一个资源池的频域资源。因此，该方式可以通过关于子信道的相关参数确定每个资源池的频域位置。
在该方式中，由于每个资源池的频域位置的确定方式可以都类似，为了描述方便，以M个资源池中的任一个资源池(例如，第i个资源池)为例，i∈[1,M]，对一个资源池的频域位置的确定过程做一说明。
可选地，该M个资源池中的第i个资源池包括N个子信道，N为大于或等于1的整数，i∈[1,M]，每个子信道可以包括一个或多个频域单元，以及；
该终端设备根据该SL BWP的带宽大小和该SL BWP的起始频域单元配置该M个资 源池，包括：
该终端设备根据第二参数配置该第i个资源池，其中，该第二参数包括：
该N个子信道中一个子信道的带宽大小和该第i个资源池包括的子信道的数量N中的至少一个，以及，该N个子信道中第一个子信道的起始频域单元，该第一个子信道在该N个子信道中的频域位置最低或最高。
其中，M个资源池中的第i个资源池可以是M个资源池中的任一个资源池。
可以这么理解，该第二参数是终端设备配置每个资源池使用的专用参数，M个资源池可以对应M个第二参数，每个资源池通过对应的第二参数确定。
这里，子信道的带宽大小是一个参考值，可以用于确定每个子信道的带宽大小。例如，该参考值可以是至少部分子信道的带宽大小，这里的至少部分子信道的带宽大小表示所有子信道的带宽大小或部分子信道的带宽大小。其中，若该参考值为部分子信道的带宽大小，该参考值可以是该N个子信道中的除第一个子信道和/或最后一个子信道之外的子信道的带宽大小，出于实际考虑(例如，网络设备在配置资源池时资源池的带宽大小不能整除子信道的带宽大小)，可能会使得最终配置的该N个子信道的第一个子信道和/或最后一个子信道的带宽大小可能会与该参考值不同。
图7所示为SL BWP中的资源池的另一示意图。如图7所示，在图7左边的图中，资源池1中包括5个子信道，子信道2、子信道3和子信道4的带宽大小都为第二参数中的子信道的带宽大小，子信道1和子信道5的带宽大小与该第二参数中的子信道的带宽大小不同；在图7右边的图中，资源池1中包括4个子信道，子信道1、子信道2和子信道3的带宽大小都为第二参数中的子信道的带宽大小，子信道4的带宽大小与该第二参数中的子信道的带宽大小不同。
下面，对该第二参数中包括的参数的不同情况分别对终端设备确定该第i个资源池的频域位置进行说明。本申请实施例的第二参数可以是如下情况中的任一种。
情况1
第二参数包括一个子信道的带宽大小、第i个资源池中包括的子信道的数量N和该N个子信道中第一个子信道的起始频域单元。
这种情况下，终端设备可以将以该第一个子信道的起始频域单元开始的N个子信道确定为该第i个资源池，N个子信道中每个信道的带宽大小可以基于该第二参数中子信道的带宽大小确定，具体可以参考上文针对基于该第二参数中子信道的带宽大小确定资源池中的子信道的带宽大小的描述，为了简洁，此处不再赘述。
情况2
第二参数包括一个子信道的带宽大小和该N个子信道中第一个子信道的起始频域单元
这种情况可以适用于M＝1的场景。
一种实现方式中，终端设备可以从第一个子信道的起始频域单元开始，按照子信道的带宽大小依次确定每个子信道，直到确定完一个SL BWP中的资源为止。其中，N个子信道中每个信道的带宽大小可以基于该第二参数中子信道的带宽大小确定，具体可以参考上文针对基于该第二参数中子信道的带宽大小确定资源池中的子信道的带宽大小的描述，为了简洁，此处不再赘述。
另一种实现方式中，终端设备可以通过SL BWP的带宽大小与一个子信道的带宽大小确定N，从而，从该第一个子信道的起始频域单元开始，确定N个子信道。例如，若SL BWP的带宽大小为
Figure PCTCN2019107240-appb-000006
子信道的带宽大小为
Figure PCTCN2019107240-appb-000007
若不考虑第一个子信道的起始频域单元，则一个BWP中能够包括的子信道的最大数量可以为
Figure PCTCN2019107240-appb-000008
N≤N max。若考虑第一个子信道的起始频域单元，则一个SL BWP中能够包括的子信道的最大数量可以为
Figure PCTCN2019107240-appb-000009
k为第一个子信道的起始频域单元偏移SL BWP的起始频域单元的频域单元的数量。以图3为例，假设，第一个子信道的起始频域单元为公共索引为11或BWP中的索引为2的频域单元，则公共索引为11或BWP中的索引为2的频域单元偏移BWP的起始频域单元(公共索引为9或BWP中的索引为0的频域单元)2个频域单元。
情况3
第二参数包括第i个资源池中包括的子信道的数量N和该N个子信道中第一个子信道的起始频域单元。
这种情况可以适用于M＝1的场景，终端设备可以通过SL BWP的带宽大小与N确定每个子信道的带宽大小的参考值，从而，确定每个子信道的大小，从第一个子信道的起始频域单元开始可以确定N个子信道，从而确定资源池的大小。
例如，若SL BWP的带宽大小为
Figure PCTCN2019107240-appb-000010
若不考虑第一个子信道的起始频域单元，则子信道的带宽大小的参考值可以为
Figure PCTCN2019107240-appb-000011
则至少部分子信道的带宽大小
Figure PCTCN2019107240-appb-000012
这里的至少部分子信道的带宽大小表示所有子信道的带宽大小或部分子信道的带宽大小。例如，N个子信道的带宽大小都相同，且每个子信道的带宽大小
Figure PCTCN2019107240-appb-000013
再例如，N个子信道中处于中间位置的子信道的带宽大小相同，且每个子信道的带宽大小
Figure PCTCN2019107240-appb-000014
第一个子信道和最后一个子信道的带宽大小与处于中间位置的子信道的带宽大小不同。
可选地，在本申请实施例中，网络设备可以通过信令通知终端设备该SL BWP中包括的资源池的个数M的信息，或者，SL BWP包括的资源池的个数M的信息可以是协议预定义的。
在该方式中，该第二参数中的至少一个可以是网络设备通过信令发送给终端设备，该第二参数中的至少一个也可以是终端设备通过预定义的方式确定的。下面，分别对该第二参数的获取方式进行说明。可以采用如下方式中的一种或多种。
方式1A
该第二参数是网络设备通过信令发送给终端设备
此种情况下，对于网络设备来说，在发送该第二参数之前，可以先确定好SL BWP中的所有子信道，通过将子信道划分至不同的资源池生成第二参数，进而将该第二参数发送给终端设备，终端设备根据第二参数确定资源池。下面，对网络设备确定子信道以及资源池的过程做一举例进行简单说明。
可选地，网络设备根据SL BWP的带宽大小、该SL BWP的起始频域单元、子信道的带宽大小和M确定该M个资源池的频域位置。
在一种可能的实现方式中，网络设备可以从该SL BWP的起始频域单元开始，基于SL BWP的带宽大小将SL BWP的频域资源大致均分为M个，一个频域资源即为一个资源池，这样，就可以确定每个资源池的频域位置，根据子信道的带宽大小和每个资源池的带宽大小确定每个资源池中包括的子信道的数量，这样，就可以进一步确定每个资源池中子信道的位置。从而，生成每个资源池对应的第二参数。
图8所示为SL BWP中的资源池的示意图。如图8所示，SL-BWP包括N个频域单元，M＝2，则第一个资源池(即，资源池1)可以包括N/2个频域单元，第二个资源池(即，资源池2)可以包括N/2个频域单元。
需要说明的是，若SL-BWP的带宽大小不能整除M，则可以进行向上取整或者向下取整的操作，设置其中某一个资源池的带宽大小与其他资源池的带宽大小不同，该其他资源池的带宽大小都相同。例如，一个SL BWP中包括30个频域单元，M＝4，若
Figure PCTCN2019107240-appb-000015
则前3个资源池中每个资源池可以包括8个频域单元，第4个资源池包括6个频域单元，若
Figure PCTCN2019107240-appb-000016
则前3个资源池中每个资源池可以包括7个频域单元，第4个资源池包括9个资源池。
同理，基于每个资源池的带宽大小和子信道的带宽大小确定每个资源池中包括的子信道的数量时，若资源池的带宽大小不能整除子信道的带宽大小，则可以进行向上取整或者向下取整的操作，设置其中某一个资源池的子信道的数量与其他资源池的子信道的数量不同，该其他资源池的子信道的数量都相同。
在另一种可能的实现方式中，网络设备可以基于SL BWP的带宽大小和子信道的带宽大小确定SL BWP中子信道的最大数量N max，根据N max确定SL BWP中包括的子信道的数量N1，根据SL BWP的起始频域单元和N1确定SL BWP中N1个子信道的频域位置，根据N1个子信道的频域位置和M确定M个资源池中每个资源池的频域位置，例如，将N1个子信道大致平分为M个资源池的子信道。从而，生成每个资源池对应的第二参数。
需要说明的是，若N1不能整除M，则可以进行向上取整或者向下取整的操作，设置其中某一个资源池的子信道的数量与其他资源池中的子信道的数量不同，该其他资源池的子信道的数量都相同。
其中，SL BWP中包括的子信道的数量N1可以通过如下方式确定：若SL BWP的带宽大小为
Figure PCTCN2019107240-appb-000017
子信道的带宽大小为
Figure PCTCN2019107240-appb-000018
若不考虑N1个子信道中第一个子信道的起始频域单元，则SL BWP中能够包括的子信道的最大数量可以为
Figure PCTCN2019107240-appb-000019
N1≤N max。若考虑第一个子信道的起始频域单元，则SL BWP中能够包括的子信道的最大数量可以为
Figure PCTCN2019107240-appb-000020
k为第一个子信道的起始频域单元偏移SL BWP的起始频域单元的频域单元的数量。
以下，基于上述网络设备生成该第二参数的方式，对该第二参数的生成做一举例进行简单介绍。
子信道的带宽大小
可选地，子信道的带宽大小是基于SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定的。
例如，若SL BWP的带宽大小为B1时，则子信道的带宽大小为b1；若SL BWP的带 宽大小为B2时，则子信道的带宽大小为b2；依次类推。作为示例而非限定，SL BWP的带宽大小与子信道的带宽大小之间的映射关系可以如下表2和表3所示，其中，表3是对表2中的B1，B2，B3，B4和b1，b2，b3，b4做具体取值后生成的表。B1，B2，B3，B4为正整数，b1，b2，b3，b4为正整数。
表2
SL BWP的带宽大小 子信道的带宽大小
B1 b1
B2 b2
B3 b3
B4 b4
表3
SL BWP的带宽大小 子信道的带宽大小
20 2
50 5
150 10
200 20
可选地，子信道的带宽大小是基于SL BWP的带宽大小的区间与子信道的带宽大小之间的映射关系确定的。
例如，若SL BWP的带宽大小的区间为C1～C2时，则子信道的带宽大小为c1；若SL BWP的带宽大小为C3～C4时，则子信道的带宽大小为c2；依次类推。
作为示例而非限定，SL BWP的带宽大小的区间与子信道的带宽大小之间的映射关系可以如下表4和表5所示，其中，表5是对表4中的C1，C2，C3，C4，C5，C6，C7，C8和c1，c2，c3，c4做具体取值后生成的表，其中C1，C2，C3，C4，C5，C6，C7，C8为正整数，c1，c2，c3，c4为正整数。
表4
SL BWP的带宽大小 子信道的带宽大小
C1～C2 c1
C3～C4 c2
C5～C6 c3
C7～C8 c4
表5
SL BWP的带宽大小 子信道的带宽大小
1–36 2
37–72 4
73–144 8
145–275 16
这里，SL BWP的带宽大小与子信道的带宽大小之间的映射关系，或者，SL BWP的带宽大小的区间与子信道的带宽大小之间的映射关系可以是系统或协议规定好的，此处不做限定。
一个资源池中包括的子信道的数量N
如上所述，一个资源池中子信道的数量N可以和M、子信道的带宽大小、SL BWP的带宽大小都存在关系。网络设备可以基于上述3个参数确定一个资源池中包括的子信道的数量N，具体方式可以参考上文描述，为了简洁，此处不再赘述。
第一个子信道的起始频域单元
这里，第一子信道的起始频域单元可以是资源池的起始频域单元，也可以不是资源池的起始频域单元。由于资源池中可以包括两部分资源，例如，一部分是调度分配(Scheduling assignment，SA)资源，该资源用于传输调度信息；另一部分是数据资源，该资源用于传输数据。在资源池中，SA资源和数据资源可以在频域上相邻，也可以在频域不相邻。因此，下面基于SA资源和数据资源是否相邻的情况来说明第一个子信道的起始频域单元。可以采用如下情况中的一种或多种。
SA资源和数据相邻
可选地，第一个子信道的起始频域单元可以为每个资源池的起始频域单元。
本申请实施例中，子信道中包括的SA资源的频域单元的数量可以是预定义的，也可以是网络设备通过信令通知给该终端设备的。例如，SA资源可以是2个资源块，4个资源块，或者其他正整数个资源块。
可选地，SA资源与数据资源具有对应关系，一个子信道中可以既包括SA资源又包括数据资源。一个子信道的数据资源可以对应于该子信道中的SA资源。
可选地，SA资源可以是位于子信道资源的起始频域单元，此时SA资源的起始频域资源也可以为每个资源池的起始频域单元。
SA资源和数据资源不相邻
可选地，第一个子信道的起始频域单元可以为每个资源池的起始频域单元。
可选地，一个子信道中仅包括数据资源。
可选地，SA资源与数据资源具有对应关系。比如一个子信道的数据资源可以对应于一个SA资源。图9所示为资源池中SA资源和数据资源的示意图，如图9中所示，从下往上，SA资源分别为第一SA资源，第二SA资源，第三SA资源，第四SA资源；从下往上，子信道分别为第一子信道，第二子信道，第三子信道，第四子信道。SA资源与数据资源的对应关系可以具体如下：第一子信道对应于第一SA资源，第二子信道对应于第二SA资源，第三子信道对应于第三SA资源，第四子信道对应于第四SA资源。
可选地，继续如图9所示，SA资源的起始频域单元可以为每个资源池的起始频域单元，此种情况下，第一个子信道的起始频域单元可以是根据SA资源确定的，例如，第一个子信道的起始频域单元为SA资源的最后一个频域单元之后的第一个频域单元。
可选地，数据资源的起始频域单元为资源池的起始频域单元，或者，SA资源的起始频域单元为资源池的起始频域单元。具体的采用上述两种情况中的哪一种可以是协议预定义的，也可以是网络设备通过信令告知终端设备的。
此外，图10所示为资源池中SA资源和数据资源的另一示意图，如图10所示，SA资源 和子信道的资源也可以共享。
在本申请实施例中，SA资源的频域单元的数量可以是预定义的，也可以是网络设备通过信令通知给该终端设备的。例如，SA资源可以是2个资源块，4个资源块，或者其他正整数个资源块。
方式1B
终端设备确定该第二参数。
一种可能的实现方式中，M＝1，该终端设备确定资源池的过程如下：终端设备可以基于SL BWP的带宽大小和子信道的带宽大小确定SL BWP中子信道的最大数量N max，根据N max确定资源池(或SL BWP)中包括的子信道的数量N，根据SL BWP的起始频域单元和N确定资源池中N个子信道的频域位置，进而确定资源池。
这种情况下，第一个子信道的起始频域单元可以为SL BWP的起始频域单元，也可以是偏移SL BWP的起始频域单元k个频域单元的频域单元；k可以是网络设备通过信令通知的，也可以是系统或协议规定的。
可选地，子信道的带宽大小可以基于SL BWP的带宽大小和子信道的带宽大小的映射关系确定，或者，子信道的带宽大小可以基于SL BWP的带宽大小的区间和子信道的带宽大小的映射关系确定，该映射关系可以是协议或系统规定的。如上述实施例所述，具体的在此不再赘述。
作为示例而非限定，该第二参数还可以包括其他仅针对每个资源池的参数。例如，若第一参数包括波形，不包括帧结构的上下行配置和参数集合，则第二参数可以包括帧结构的上下行配置和参数集合；同理，若第一参数包括波形和帧结构的上下行配置，不包括参数集合，则第二参数包括参数集合。
方式2
该方式可以不需要通过方式1中的子信道确定资源池，终端设备可以自己确定资源池。
可选地，终端设备根据该SL BWP的带宽大小和该SL BWP的起始频域单元确定该M个资源池的频域位置，包括：
终端设备根据该SL BWP的带宽大小、该SL BWP的起始频域单元和M确定该M个资源池的频域位置。
可选地，网络设备可以通过信令通知终端设备该SL BWP中包括的资源池的个数M的信息，或者，资源池的个数M的信息可以是协议预定义的。
例如，终端设备可以从该SL BWP的起始频域单元开始，基于SL BWP的带宽大小将SL BWP的频域资源均分为M个，一个频域资源即为一个资源池，这样，就可以确定每个资源池的频域位置。可以参考上文图8的描述。
同理，若SL-BWP的带宽大小不能整除M，则可以进行向上取整或者向下取整的操作，设置其中某一个资源池的带宽大小与其他资源池的带宽大小不同，该其他资源池的带宽大小都相同。具体描述可以参考上文方式1A中的网络设备的第一种实现方式，为了简洁，此处不在赘述。
可选地，M可以是协议预定义的，也可以是网络设备通过信令配置给终端设备的，此处不做任何限定。
如前所述，在SL通信中，为了确定传输资源时降低指示开销，终端设备可以在资源池中继续确定至少一个子信道。由于在每个资源池中配置子信道的方式可以相同，因此，为了方便描述，以一个资源池为例，描述终端设备在一个资源池中配置至少一个子信道的过程，终端设备在其他资源池中配置资源池的过程可以与之类似。下面，通过3种方式描述确定子信道的过程。实现过程中，可以采用如下方式中的任一种。
方式2A
可选地，终端设备可以根据子信道的带宽大小和资源池的带宽大小确定资源池中包括的子信道的数量，根据第一个子信道的起始频域单元就可以进一步确定资源池中每个子信道的位置。
其中，子信道的带宽大小可以根据子信道的带宽大小和SL BWP的映射关系确定，或者，子信道的带宽大小可以根据子信道的带宽大小的区间和SL BWP的映射关系确定，该映射关系可以是系统或协议规定的；第一个子信道的起始频域单元可以是资源池的起始频域单元，也可以不是资源池的起始频域单元，具体描述可以参考上文方式1A中关于第一子信道的起始频域单元的描述，为了简洁，此处不再赘述。
方式2B
可选地，终端设备也可以根据一个资源池中包括的子信道的数量和资源池的带宽大小确定子信道的带宽大小，根据第一个子信道的起始频域单元就可以进一步确定资源池中每个子信道的位置。
其中，资源池中包括的子信道的数量可以是系统或协议规定的，也可以是网络设备通过信令发送给终端设备的。第一个子信道的起始频域单元可以是资源池的起始频域单元，也可以不是资源池的起始频域单元，具体描述可以参考上文方式1A中关于第一子信道的起始频域单元的描述，为了简洁，此处不再赘述。
方式2C
可选地，终端设备可以通过子信道的带宽大小、资源池的带宽大小和第一个子信道的起始频域单元确定资源池中子信道的位置。其中，子信道的带宽大小、资源池的带宽大小和第一个子信道的起始频域单元的确定方式可以参考上文描述。
方式3
该方式确定的多个资源池的频域资源可以不重叠，也可以部分重叠，也可以是一个资源池的频域资源包括另一个资源池的频域资源。
可选地，可以基于第一个子信道的起始频域单元、子信道的带宽大小和一个资源池中包括的子信道的数量确定资源池的频域位置。这种方式中，对于M大于或等于1的情况，第i个资源池是根据第i-1个资源池的频域资源确定，i大于或等于2。例如，从第一个子信道的起始频域单元开始在确知第1个资源池的频域资源后，第i个资源池的起始频域单元为第i-1个资源的终止频域单元之后的第一个频域单元。再例如，可以根据资源池i和资源池i-1重叠的频域单元的个数确定第i个资源池的起始频域单元。比如重叠的频域单元的个数可以是协议预定义的，也可以是网络设备通过信令告知终端设备的。此时，第i个资源池的起始频域单元为第i-1个资源的终止频域单元减去重叠的资源单元的个数后对应的频域资源单元。
方式4
该方式类似方式2，区别在于网络设备通过方式2确定M个资源池，将关于每个资源池的频域位置的相关参数发送给终端设备，该终端设备通过接收到的参数确定M个资源池。具体描述可以参考方式2，此处不再赘述。
在一种可能的实现方式中，该参数可以包括第i个资源池中的频域单元的数量和第i个资源池的起始频域单元。其中第i个资源池是M个资源池中的任一个。
可选地，频域单元的数量也可以称为资源池的带宽。
可选地，第i个资源池的频域单元的位置可以是根据第i个资源池的起始频域单元确定。
在另一种可能的实现方式中，该参数包括第i个资源池的起始频域单元(比如起始RB)，频域单元的个数(比如RB个数)，终止频域单元(比如终止RB)中的至少两个。
作为示例而非限定，资源池的频域资源可以是起始RB～起始RB+RB个数，和/或，终止RB-RB个数～终止RB，和/或，起始RB～终止RB。
在本申请实施例中，由于本申请实施例描述的是资源池的频域资源，那么，终端设备在配置资源池时还需要考虑子载波间隔，使得配置资源池的其他参数(例如，第二参数)需要与子载波间隔对应。该实施例可以作为独立的实施例，也可以与本发明中的其他实施例相结合，本申请对此不作限定。
可选地，若该第一参数中包括子载波间隔，则该终端设备可以根据该第一参数中的子载波间隔确定该SL BWP中的M个资源池。
也就是说，终端设备基于该第一参数中的子载波间隔，获得的用于配置资源池的其余参数(例如，第二参数)是与该子载波间隔对应的参数。例如，该第一参数中的子载波间隔为15kHz，与该子载波间隔对应的子信道的带宽大小为2个频域单元，则该终端设备获得的第二参数中的子信道的带宽大小即为该子载波间隔对应的2个频域单元。
实现中，终端设备获得SL BWP配置信息中的第一参数，若接收到网络设备发送的第二参数，则默认该第二参数就是子载波间隔对应的参数，若终端设备自己确定该第二参数，则直接基于该子载波间隔确定该第二参数。
作为示例而非限定，该第二参数也可以是基于协议规定下的子载波间隔(为了便于区分与理解，记为子载波间隔1)对应的参数，该子载波间隔1与资源池的子载波间隔(为了便于区分与理解，记为子载波间隔2)可以相同也可以不同。若该子载波间隔1和子载波间隔2不同，则，需要将子载波间隔1对应的第二参数换算为子载波间隔2对应的第二参数。例如，子载波间隔1为15kHz，第二参数中与子载波间隔1对应的子信道的带宽大小为4个频域单元，子载波间隔2为30kHz，根据第二参数的指示可以获知与该子载波间隔对应的子信道的带宽大小为2个频域单元，则，终端设备需要将子信道的带宽大小由该第二参数中的4个换算为2个。
在本申请实施例中，网络设备通过信令给终端设备发送该第二参数时，可以基于该第一个子信道的起始频域单元相对的参考位置的不同，有不同的指示形式。下面，对该第一个子信道的起始频域单元相对的参考位置的相关内容进行描述。该实施例可以作为独立的实施例，也可以与本发明中的其他实施例相结合，本申请对此不作限定。可以采用如下方式中的一种或多种。
方式A1
该第一个子信道的起始频域单元相对于该SL BWP的起始频域单元偏移K 1个频域单元，K 1为大于或等于0的整数。
也就是说，该第一个子信道的起始频域单元的参考位置是SL BWP的起始频域单元。
这种情况下，该第一个子信道的起始频域单元的索引是基于该第一子信道的起始频域单元相对于该SL BWP起始频域单元偏移的频域单元的数量确定的。
如前所述，这个索引可以是频域单元在SL BWP中的索引，是以SL BWP作为参考对象设计的。网络设备通过索引来指示该第一个子信道的起始频域单元之前，可以将SL BWP中的频域单元重新编号，从而生成在SL BWP中的索引。这样，该第一子信道的起始频域单元的索引和该第一子信道的起始频域单元相对于该SL BWP起始频域单元偏移的频域单元的数量有关。
例如，该第一个子信道的起始频域单元的索引为该第一子信道的起始频域单元相对于该SL BWP起始频域单元偏移的频域单元的数量。
如图11所示，网络设备可以对SL BWP中的频域单元的索引重新编号，使得频域单元在SL BWP中的索引为0-43，以资源池6为例，资源池6中的第一个子信道的起始频域单元的索引为36，即与SL BWP的起始频域单元偏移36个频域单元。
可以发现，对SL BWP的频域单元重新编号后，由于新生成的频域单元的索引的数值较小，占用的比特位也会少，因此，采用新生成的索引指示频域单元可以有效地减少占用的比特位，从而节省资源。
作为示例而非限定，网络设备也可以通过指示K 1来指示该第一个子信道的起始频域单元。这种情况下，终端设备仅需要确知该第一子信道的起始频域单元的参考位置是SL BWP的起始频域单元即可，可以不用对SL BWP中的频域单元重新编号。
方式B1
所述第一个子信道的起始频域单元相对于第一载波的起始频域单元偏移K 2个频域单元，所述第一载波是所述第i个资源池的频域资源所属的载波，K 2为大于或等于0的整数。
也就是说，该第一个子信道的起始频域单元的参考位置是第一载波的起始频域单元。
这种情况下，该第一个子信道的起始频域单元的索引是基于该第一子信道的起始频域单元相对于该第一载波的起始频域单元偏移的频域单元的数量确定的。
如前所述，这个索引可以是频域单元的公共索引，是以第一载波作为参考对象设计的。网络设备可以利用系统已有的公共索引来指示该第一个子信道的起始频域单元。
例如，该第一个子信道的起始频域单元的索引为该第一子信道的起始频域单元相对于该第一载波的起始频域单元偏移的频域单元的数量。
如图12所示，SL BWP中的频域单元的公共索引9-52，以资源池6为例，资源池6中的第一个子信道的起始频域单元的索引为45，即与载波1的起始频域单元偏移45个频域单元。
作为示例而非限定，网络设备也可以通过指示K2来指示该第一个子信道的起始频域单元。
上述介绍了第一子信道的起始频域单元的参考位置以及关联的该第一子信道的起始频域单元的指示方式。应理解，终端设备和网络设备会协商好使用哪种方式指示频域单元，若是基于方式A，则终端设备也可以同样对SL BWP中的频域单元重新编号，生成频域单 元在SL BWP中的索引，这样，终端设备在接收到用于指示该第一子信道的频域单元的索引后就能准确判断该索引指示的频域单元。若是基于方式B，则终端设备可以不需要对SL BWP中的频域单元重新编号，直接利用频域单元的公共索引就可以判断该索引指示的频域单元。
上述描述了网络设备针对资源池中第一个子信道的起始频域单元的指示方式，在有些实现方式中(例如，方式4)中，网络设备可以向该终端设备发送每个资源池的相关参数，使得终端设备确定每个资源池的位置，其中，每个资源池的相关参数可以包括资源池的起始频域单元。这种方式中，网络设备针对资源池的起始频域单元的指示方式与上述描述的网络设备针对资源池中第一个子信道的起始频域单元的指示方式可以类似。下面，对该资源池的起始频域单元相对的参考位置的相关内容进行描述。该实施例可以作为独立的实施例，也可以与本发明中的其他实施例相结合，本申请对此不作限定。实现中，可以采用如下方式中的任一种。
方式A2
该资源池的起始频域单元相对于该SL BWP的起始频域单元偏移K 3个频域单元，K 3为大于或等于0的整数。
也就是说，该资源池的起始频域单元的参考位置是SL BWP的起始频域单元。
这种情况下，该资源池的起始频域单元的索引是基于该资源池的起始频域单元相对于该SL BWP起始频域单元偏移的频域单元的数量确定的。
如前所述，这个索引可以是频域单元在SL BWP中的索引，是以SL BWP作为参考对象设计的。网络设备通过索引来指示该资源池的起始频域单元之前，可以将SL BWP中的频域单元重新编号，从而生成在SL BWP中的索引。这样，该资源池的起始频域单元的索引和该资源池的起始频域单元相对于该SL BWP起始频域单元偏移的频域单元的数量有关。
例如，该资源池的起始频域单元的索引为该资源池的起始频域单元相对于该SL BWP起始频域单元偏移的频域单元的数量。
如图11所示，网络设备可以对SL BWP中的频域单元的索引重新编号，使得频域单元在SL BWP中的索引为0-43，以资源池6为例，资源池6的起始频域单元的索引为36，即与SL BWP的起始频域单元偏移36个频域单元。
可以发现，对SL BWP的频域单元重新编号后，由于新生成的频域单元的索引的数值较小，占用的比特位也会少，因此，采用新生成的索引指示频域单元可以有效地减少占用的比特位，从而节省资源。
作为示例而非限定，网络设备也可以通过指示K 3来指示该资源池的起始频域单元。这种情况下，终端设备仅需要确知该资源池的起始频域单元的参考位置是SL BWP的起始频域单元即可，可以不用对SL BWP中的频域单元重新编号。
方式B2
所述资源池的起始频域单元相对于第一载波的起始频域单元偏移K 4个频域单元，所述第一载波是所述第i个资源池的频域资源所属的载波，K 4为大于或等于0的整数。
也就是说，该资源池的起始频域单元的参考位置是第一载波的起始频域单元。
这种情况下，该资源池的起始频域单元的索引是基于该资源池的起始频域单元相对于 该第一载波的起始频域单元偏移的频域单元的数量确定的。
如前所述，这个索引可以是频域单元的公共索引，是以第一载波作为参考对象设计的。网络设备可以利用系统已有的公共索引来指示该资源池的起始频域单元。
例如，该资源池的起始频域单元的索引为该资源池的起始频域单元相对于该第一载波的起始频域单元偏移的频域单元的数量。
如图12所示，SL BWP中的频域单元的公共索引9-52，以资源池6为例，资源池6的起始频域单元的索引为45，即与载波1的起始频域单元偏移45个频域单元。
作为示例而非限定，网络设备也可以通过指示K 4来指示该资源池的起始频域单元。
上述介绍了资源池的起始频域单元的参考位置以及关联的该资源池的起始频域单元的指示方式。应理解，终端设备和网络设备会协商好使用哪种方式指示频域单元，若是基于方式A，则终端设备也可以同样对SL BWP中的频域单元重新编号，生成频域单元在SL BWP中的索引，这样，终端设备在接收到用于指示该资源池的频域单元的索引后就能准确判断该索引指示的频域单元。若是基于方式B，则终端设备可以不需要对SL BWP中的频域单元重新编号，直接利用频域单元的公共索引就可以判断该索引指示的频域单元。
应理解，针对本申请中的终止频域单元的指示方式也可以采用起始频域单元的指示方式的类似的方式，具体的，本申请不再赘述。
本申请实施例描述了配置资源池的方法，终端设备与其他终端设备通信时，作为接收端的终端设备(为了便于区分与理解，记为第一终端设备)需要知道发送端的终端设备(为了便于区分与理解，记为第二终端设备)使用哪些资源池发送数据，以及，该第二终端设备也需要知道可以在哪些资源池中发送数据。该实施例可以作为独立的实施例，也可以与本发明中的其他实施例相结合，本申请对此不作限定。
在一种方式中，网络设备可以向该第二终端设备发送用于指示资源池的第一指示信息，该第一指示信息可以承载于下行控制信息(downlink control information，DCI)中；在另一种方式中，该第二终端设备可以向该第一终端设备发送用于指示资源池的第二指示信息，该第二指示信息可以承载于旁链路控制信息(sidelink control information，SCI)中。在本申请实施例中，可以将该第一指示信息或该第二指示信息统称为索引信息或标识信息。
无论何种方式，都可以通过资源池的索引来指示，下面，对资源池的索引的两种设计方式进行说明。实现中，可以采用如下方式中的任一种。
方式C
多个SL BWP中的资源池独立编号
如图13所示，在SL BWP 0中配置了两个资源池，分别编号为资源池0和资源池1，在SL BWP 1中配置了两个资源池，分别编号为资源池0和资源池1。
在该方法中，资源池的索引是在SL BWP中的索引。
可选地，为了准确指示资源池，该第一指示信息或该第二指示信息中指示的信息可以包括：SL BWP的索引+资源池的索引。
方法D
多个SL BWP中的资源池联合编号
如图14所示，在SL BWP 0中配置了两个资源池，分别编号为资源池0和资源池1， 在SL BWP 1中配置了两个资源池，分别编号为资源池2和资源池3。
在该方法中，资源池的索引是在载波中的索引。
可选地，该第一指示信息或该第二指示信息指示的信息可以仅包括资源池的索引。
具体的采用方法1还是方法2，可以是协议预定义的，也可以是网络设备通过信令告知终端的，具体的，本申请对此不作限定。
需要说明的是，本申请实施例的终端设备可以为上述第一终端设备或第二终端设备中任一个。
应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
上文中结合图1至图14，详细描述了根据本申请实施例的配置旁链路资源的方法，下面将结合图15至图17，详细描述根据本申请实施例的配置旁链路资源的装置。
图15示出了本申请实施例提供的配置旁链路资源的装置1500，该装置1500可以是终端设备，也可以为终端设备中的芯片。该装置1500包括：处理单元1510和处理单元1520。
该处理单元1510用于：获取第一参数，该第一参数是该SL BWP中M个资源池公用的参数，该M个资源池的频域资源位于该SL BWP中，M为大于或等于1的整数；
该处理单元1520还用于：配置该M个资源池，该M个资源池配置有相同的至少一个参数，该至少一个参数是基于该第一参数确定的。
因此，本申请实施例的配置旁链路资源的装置，该装置可以在SL BWP中配置用于终端设备进行旁链路通信的资源池，并且，通过SL BWP配置信息获取SL BWP中用于资源池公用的第一参数，使得基于该第一参数确定的至少一个参数都适用SL BWP中的资源池，即，在SL BWP中配置的资源池的至少一个参数都相同。这样，通过在SL BWP中配置资源池，可以实现不同终端设备的通信。
此外，本申请实施例可以不需要为每个资源池配置一个资源池的信令，而是通过配置用于指示SL BWP中的资源池公用的第一参数的SL BWP配置信息，即，针对该第一参数，可以针对SL BWP中的资源池统一设计，符合BWP的概念，设计简单，尤其是在SL BWP中包括多个资源池的情况中，可以有效地减少信令开销。
该装置还包括：
接收单元1520，该接收单元1520用于接收SL BWP配置信息，该SL BWP配置信息用于指示该第一参数。
可选地，该第一参数包括以下至少一个：波形、帧结构的上下行配置或参数集合，该参数集合包括子载波间隔和/或循环前缀CP。
可选地，该处理单元1520具体用于：根据该SL BWP的带宽大小和该SL BWP的起始频域单元确定该M个资源池的频域位置。
可选地，该M个资源池中的第i个资源池包括N个子信道，N为大于或等于1的整数，i∈[1,M]，以及；该处理单元1520具体用于：根据第二参数配置该第i个资源池频域位置，其中，该第二参数包括：子信道的带宽大小或该第i个资源池包括的子信道的数量N中的至少一个，该N个子信道中第一个子信道的起始频域单元，该第一个子信道在该N个子信道中的频域位置最低或最高。
可选地，该第i个资源池为该M个资源池中的第一个资源池，该第一个资源池中的第一个子信道的起始频域单元是该SL BWP的起始频域单元，该第一个资源池在该M个资源池中的频域位置最低或最高。
可选地，若该第二参数包括该子信道的带宽大小，则该子信道的带宽大小是基于该SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定的。
可选地，该第一个子信道的起始频域单元相对于该SL BWP的起始频域单元偏移K 1个频域单元，K 1为大于或等于0的整数。
可选地，该第一个子信道的起始频域单元的索引为该第一子信道的起始频域单元相对于该SL BWP起始频域单元偏移的频域单元的数量。
可选地，该第一参数包括该子载波间隔，以及，该处理单元1520具体用于：根据该子载波间隔配置该M个资源池。
应理解，这里的装置1500以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置1500可以具体为上述实施例中的终端设备，装置1500可以用于执行上述方法实施例中与终端设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
图16示出了本申请实施例提供的另一个配置旁链路资源的装置1600，该装置1600可以是网络设备，也可以为网络设备中的芯片。该装置1600包括：发送单元1610。
该发送单元1610用于：发送旁链路带宽部分SL BWP配置信息，该SL BWP配置信息包括第一参数，该第一参数是配置该SL BWP中M个资源池公用的参数，该M个资源池的频域资源位于该SL BWP中，M为大于或等于1的整数。
因此，本申请实施例的配置旁链路资源的装置，该装置通过向终端设备发送包括用于资源池公用的第一参数的SL BWP配置信息，可以使得终端设备在SL BWP中配置资源池时基于该第一参数确定的至少一个参数都适用SL BWP中的资源池，即，在SL BWP中配置的资源池的至少一个参数都相同。这样，可以使得终端设备在SL BWP中配置资源池，可以实现不同终端设备的通信。
此外，本申请实施例可以不需要为每个资源池配置一个资源池的信令，而是通过配置用于指示SL BWP中的资源池公用的第一参数的SL BWP配置信息，当SL BWP中包括多个资源池时，可以有效地减少信令开销。
可选地，该第一参数包括以下至少一个：波形、帧结构的上下行配置或参数集合，该参数集合包括子载波间隔和/或循环前缀CP。
可选地，该M个资源池中的第i个资源池包括N个子信道，N为大于或等于1的整数，i∈[1,M]，该发送单元1620还用于：发送用于指示第二参数的指示信息，该第二参数包括：该子信道的带宽大小和该第i个资源池包括的子信道的数量N中的至少一个，该N个子信道中第一个子信道的起始频域单元，该第一个子信道在该N个子信道中的频域位置最低或最高。
可选地，该第i个资源池为该M个资源池中的第一个资源池，该第一个资源池中的第 一个子信道的起始频域单元是该SL BWP的起始频域单元，该第一个资源池在该M个资源池中的频域位置最低或最高。
可选地若该第二参数包括该子信道的带宽大小，则该子信道的带宽大小是基于该SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定的。
可选地，该第一个子信道的起始频域单元相对于该SL BWP的起始频域单元偏移K 1个频域单元，K 1为大于或等于0的整数；
可选地，该第一个子信道的起始频域单元的索引为该第一子信道的起始频域单元相对于该SL BWP起始频域单元偏移的频域单元的数量。
应理解，这里的装置1600以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置1600可以具体为上述实施例中的网络设备，装置1600可以用于执行上述方法实施例中与网络设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述各个方案的装置1500和装置1600具有实现上述方法中终端设备或网络设备执行的相应步骤的功能；所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块；例如发送单元可以由发射机替代，接收单元可以由接收机替代，其它单元，如确定单元等可以由处理器替代，分别执行各个方法实施例中的收发操作以及相关的处理操作。
在本申请的实施例，图15和图16中的装置也可以是芯片或者芯片系统，例如：片上系统(system on chip，SoC)。对应的，接收单元和发送单元可以是该芯片的收发电路，在此不做限定。
图17示出了本申请实施例提供的另一个配置旁链路资源置1700。该装置1700包括处理器1710、收发器1720和存储器1730。其中，处理器1710、收发器1720和存储器1730通过内部连接通路互相通信，该存储器1730用于存储指令，该处理器1710用于执行该存储器1730存储的指令，以控制该收发器1720发送信号和/或接收信号。
在一种可能的实现方式中，装置1700用于执行上述方法实施例中终端设备对应的各个流程和步骤。
其中，该处理器1710用于：获取指示第一参数，所述第一参数是所述SL BWP中M个资源池公用的参数，所述M个资源池的频域资源位于所述SL BWP中，M为大于或等于1的整数；配置所述M个资源池，所述M个资源池配置有相同的至少一个参数，所述至少一个参数是基于所述第一参数确定的。
在另一种可能的实现方式中，装置1700用于执行上述方法200中终端设备对应的各个流程和步骤。
在另一种可能的实现方式中，装置1700用于执行上述方法实施例中网络设备对应的各个流程和步骤。
该收发器器1720用于：发送旁链路带宽部分SL BWP配置信息，所述SL BWP配置信息包括第一参数，所述第一参数是配置所述SL BWP中M个资源池公用的参数，所述 M个资源池的频域资源位于所述SL BWP中，M为大于或等于1的整数。
应理解，装置1700可以具体为上述实施例中的终端设备或网络设备，并且可以用于执行上述方法实施例中与终端设备或网络设备对应的各个步骤和/或流程。可选地，该存储器1730可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如，存储器还可以存储设备类型的信息。该处理器1710可以用于执行存储器中存储的指令，并且当该处理器1710执行存储器中存储的指令时，该处理器1710用于执行上述与该终端设备或网络设备对应的方法实施例的各个步骤和/或流程。
应理解，在本申请实施例中，上述装置的处理器可以是中央处理单元(central processing unit，CPU)，该处理器还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件单元组合执行完成。软件单元可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器执行存储器中的指令，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
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，c可以是单个，也可以是多个。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (36)

  1. 一种配置旁链路资源的方法，其特征在于，所述方法包括：
    终端设备获取第一参数，所述第一参数是旁链路带宽部分SL BWP中M个资源池公用的参数，所述M个资源池的频域资源位于所述SL BWP，M为大于或等于1的整数；
    所述终端设备配置所述M个资源池，其中，所述M个资源池配置有相同的至少一个参数，所述至少一个参数是基于所述第一参数确定的。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备获取第一参数，包括：
    所述终端设备接收SL BWP配置信息，所述SL BWP配置信息用于指示所述第一参数。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一参数包括以下至少一个：波形、帧结构的上下行配置或参数集合，所述参数集合包括子载波间隔和/或循环前缀CP。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述终端设备配置所述M个资源池，包括：
    所述终端设备根据所述SL BWP的带宽大小和所述SL BWP的起始频域单元确定所述M个资源池的频域位置。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述M个资源池中的第i个资源池包括N个子信道，N为大于或等于1的整数，i∈[1,M]，以及；
    所述终端设备配置所述M个资源池，包括：
    所述终端设备根据第二参数配置所述第i个资源池的频域位置，其中，所述第二参数包括：
    子信道的带宽大小或所述第i个资源池包括的子信道的数量N中的至少一个和所述N个子信道中第一个子信道的起始频域单元，所述第一个子信道在所述N个子信道中的频域位置最低或最高。
  6. 根据权利要求5所述的方法，其特征在于，
    所述第i个资源池为所述M个资源池中的第一个资源池，所述第一个资源池中的第一个子信道的起始频域单元是所述SL BWP的起始频域单元，所述第一个资源池在所述M个资源池中的频域位置最低或最高。
  7. 根据权利要求5或6所述的方法，其特征在于，
    所述第二参数包括所述子信道的带宽大小，所述子信道的带宽大小是基于所述SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定的。
  8. 根据权利要求5至7中任一项所述的方法，其特征在于，
    所述第一个子信道的起始频域单元相对于所述SL BWP的起始频域单元偏移K 1个频域单元，K 1为大于或等于0的整数。
  9. 根据权利要求8所述的方法，其特征在于，
    所述第一个子信道的起始频域单元的索引值为所述第一子信道的起始频域单元相对于所述SL BWP起始频域单元偏移的频域单元的数量。
  10. 根据权利要求3至9任一项所述的方法，其特征在于，所述第一参数包括所述子载波间隔，以及，
    所述终端设备配置所述M个资源池，包括：
    所述终端设备根据所述子载波间隔配置所述M个资源池。
  11. 一种配置旁链路资源的方法，其特征在于，所述方法包括：
    网络设备发送旁链路带宽部分SL BWP配置信息，所述SL BWP配置信息用于指示第一参数，所述第一参数是配置所述SL BWP中M个资源池公用的参数，所述M个资源池的频域资源位于所述SL BWP，M为大于或等于1的整数。
  12. 根据权利要求11所述的方法，其特征在于，所述第一参数包括以下至少一个：波形、帧结构的上下行配置或参数集合，所述参数集合包括子载波间隔和/或循环前缀CP。
  13. 根据权利要求11或12所述的方法，其特征在于，所述M个资源池中的第i个资源池包括N个子信道，N为大于或等于1的整数，i∈[1,M]，所述方法还包括：
    所述网络设备发送用于指示第二参数的指示信息，所述第二参数包括：
    所述子信道的带宽大小和所述第i个资源池包括的子信道的数量N中的至少一个，所述N个子信道中第一个子信道的起始频域单元，所述第一个子信道在所述N个子信道中的频域位置最低或最高。
  14. 根据权利要求13所述的方法，其特征在于，
    所述第i个资源池为所述M个资源池中的第一个资源池，所述第一个资源池中的第一个子信道的起始频域单元是所述SL BWP的起始频域单元，所述第一个资源池在所述M个资源池中的频域位置最低或最高。
  15. 根据权利要求13或14所述的方法，其特征在于，
    所述第二参数包括所述子信道的带宽大小，所述子信道的带宽大小是基于所述SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定的。
  16. 根据权利要求13至15中任一项所述的方法，其特征在于，
    所述第一个子信道的起始频域单元相对于所述SL BWP的起始频域单元偏移K 1个频域单元，K 1为大于或等于0的整数。
  17. 根据权利要求16所述的方法，其特征在于，
    所述第一个子信道的起始频域单元的索引值为所述第一子信道的起始频域单元相对于所述SL BWP起始频域单元偏移的频域单元的数量。
  18. 一种配置旁链路资源的装置，其特征在于，所述装置包括：
    处理单元，用于获取第一参数，所述第一参数是所述SL BWP中M个资源池公用的参数，所述M个资源池的频域资源位于所述SL BWP中，M为大于或等于1的整数；
    所述处理单元还用于，配置所述M个资源池，所述M个资源池配置有相同的至少一个参数，所述至少一个参数是基于所述第一参数确定的。
  19. 根据权利要求18所述的装置，其特征在于，所述装置还包括：
    接收单元，所述接收单元用于接收SL BWP配置信息，所述SL BWP配置信息用于指示所述第一参数。
  20. 根据权利要求18或19所述的装置，其特征在于，所述第一参数包括以下至少一个：波形、帧结构的上下行配置或参数集合，所述参数集合包括子载波间隔和/或循环前缀CP。
  21. 根据权利要求18或20所述的装置，其特征在于，所述处理单元具体用于：
    根据所述SL BWP的带宽大小和所述SL BWP的起始频域单元确定所述M个资源池的频域位置。
  22. 根据权利要求18至21中任一项所述的装置，其特征在于，所述M个资源池中的第i个资源池包括N个子信道，N为大于或等于1的整数，i∈[1,M]，以及；
    所述处理单元具体用于：
    根据第二参数配置所述第i个资源池频域位置，其中，所述第二参数包括：
    子信道的带宽大小或所述第i个资源池包括的子信道的数量N中的至少一个，所述N个子信道中第一个子信道的起始频域单元，所述第一个子信道在所述N个子信道中的频域位置最低或最高。
  23. 根据权利要求22所述的装置，其特征在于，
    所述第i个资源池为所述M个资源池中的第一个资源池，所述第一个资源池中的第一个子信道的起始频域单元是所述SL BWP的起始频域单元，所述第一个资源池在所述M个资源池中的频域位置最低或最高。
  24. 根据权利要求22或23所述的装置，其特征在于，
    所述第二参数包括所述子信道的带宽大小，所述子信道的带宽大小是基于所述SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定的。
  25. 根据权利要求22至24中任一项所述的装置，其特征在于，
    所述第一个子信道的起始频域单元相对于所述SL BWP的起始频域单元偏移K 1个频域单元，K 1为大于或等于0的整数。
  26. 根据权利要求25所述的装置，其特征在于，
    所述第一个子信道的起始频域单元的索引值为所述第一子信道的起始频域单元相对于所述SL BWP起始频域单元偏移的频域单元的数量。
  27. 根据权利要求20至26中任一项所述的装置，其特征在于，所述第一参数包括所述子载波间隔，以及，
    所述处理单元具体用于：
    根据所述子载波间隔配置所述M个资源池。
  28. 一种配置旁链路资源的装置，其特征在于，所述装置包括：
    发送单元，用于发送旁链路带宽部分SL BWP配置信息，所述SL BWP配置信息包括第一参数，所述第一参数是配置所述SL BWP中M个资源池公用的参数，所述M个资源池的频域资源位于所述SL BWP中，M为大于或等于1的整数。
  29. 根据权利要求28所述的装置，其特征在于，所述第一参数包括以下至少一个：波形、帧结构的上下行配置或参数集合，所述参数集合包括子载波间隔和/或循环前缀CP。
  30. 根据权利要求28或29所述的装置，其特征在于，所述M个资源池中的第i个资源池包括N个子信道，N为大于或等于1的整数，i∈[1,M]，所述发送单元还用于：
    发送用于指示第二参数的指示信息，所述第二参数包括：
    所述子信道的带宽大小和所述第i个资源池包括的子信道的数量N中的至少一个，所述N个子信道中第一个子信道的起始频域单元，所述第一个子信道在所述N个子信道中的频域位置最低或最高。
  31. 根据权利要求30所述的装置，其特征在于，
    所述第i个资源池为所述M个资源池中的第一个资源池，所述第一个资源池中的第一个子信道的起始频域单元是所述SL BWP的起始频域单元，所述第一个资源池在所述M个资源池中的频域位置最低或最高。
  32. 根据权利要求30或31所述的装置，其特征在于，
    所述第二参数包括所述子信道的带宽大小，所述子信道的带宽大小是基于所述SL BWP的带宽大小与子信道的带宽大小之间的映射关系确定的。
  33. 根据权利要求30至32中任一项所述的装置，其特征在于，
    所述第一个子信道的起始频域单元相对于所述SL BWP的起始频域单元偏移K 1个频域单元，K 1为大于或等于0的整数。
  34. 根据权利要求33所述的装置，其特征在于，
    所述第一个子信道的起始频域单元的索引为所述第一子信道的起始频域单元相对于所述SL BWP起始频域单元偏移的频域单元的数量。
  35. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1至17中任意一项所述的方法。
  36. 一种芯片系统，其特征在于，所述芯片系统包括：
    存储器：用于存储指令；
    处理器，用于从所述存储器中调用并运行所述指令，使得安装有所述芯片系统的通信设备执行如权利要求1至17中任意一项所述的方法。
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