WO2022143389A1 - 由用户设备执行的方法以及用户设备 - Google Patents

由用户设备执行的方法以及用户设备 Download PDF

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Publication number
WO2022143389A1
WO2022143389A1 PCT/CN2021/140768 CN2021140768W WO2022143389A1 WO 2022143389 A1 WO2022143389 A1 WO 2022143389A1 CN 2021140768 W CN2021140768 W CN 2021140768W WO 2022143389 A1 WO2022143389 A1 WO 2022143389A1
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resource
resource selection
selection mechanism
resource pool
sensing
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PCT/CN2021/140768
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English (en)
French (fr)
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罗超
刘仁茂
赵毅男
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夏普株式会社
罗超
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Publication of WO2022143389A1 publication Critical patent/WO2022143389A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources

Definitions

  • the present invention relates to a method performed by a user equipment and the user equipment.
  • NR SL (sidelink) communication for example, when configured as SL resource allocation mode 2
  • different UEs can support different sets of resource selection mechanisms. For example, some UEs only support “full sensing" and "random resources” Select", some UEs may additionally support “partial sensing”.
  • different transmission resource pools configured in the system can enable different sets of resource selection mechanisms. For example, some transmission resource pools enable ⁇ full sensing ⁇ , and some transmission resource pools enable ⁇ full sensing ⁇ . sensing, partial sensing, random resource selection ⁇ .
  • SL resource allocation eg, SL resource allocation mode 2
  • Non-patent literature 1 RP-152293, New WI proposal: Support for V2V services based on LTE sidelink
  • Non-patent document 2 RP-170798, New WID on 3GPP V2X Phase 2
  • Non-Patent Document 3 RP-170855, New WID on New Radio Access Technology
  • Non-patent document 4 RP-190766, New WID on 5G V2X with NR sidelink
  • Non-patent document 5 RP-201385, WID revision: NR sidelink enhancement
  • the present invention provides a method executed by user equipment and user equipment, by flexibly setting the rules for determining the resource selection mechanism and the resource pool, so that in the SL resource allocation mode 2, according to the appropriate
  • the resource selection mechanism allocates resources in an appropriate resource pool, which improves the performance of SL resource allocation mode 2.
  • a method performed by a user equipment is proposed, which is characterized by comprising: acquiring information related to SL resource allocation, which includes a resource pool set U mode2 . and, determining a resource selection mechanism m current,1 , wherein the resource selection mechanism m current,1 is one or more resources supported by the UE and configured in at least one resource pool in the resource pool set U mode2 The highest priority resource selection mechanism among the resource selection mechanisms. And, a resource pool u current,1 is determined, wherein the resource pool u current,1 is any resource pool configured with the resource selection mechanism m current,1 in the resource pool set U mode2 . And, SL resource allocation mode 2 is performed based on the resource selection mechanism m current,1 and the resource pool u current,1 .
  • the resource selection mechanism configured in each resource pool in the resource pool set U mode2 may include one or more of partial sensing and random resource selection.
  • the resource selection mechanism configured in each resource pool in the resource pool set U mode2 may include one of full sensing, partial sensing and random resource selection or more.
  • the priority order corresponding to the priorities from the highest priority to the lowest priority may be partial sensing and random resource selection.
  • the priority order corresponding to the priority from the highest priority to the lowest priority may be full sensing, partial sensing, and random resource selection.
  • the resource selection mechanism set corresponding to at least one resource pool in the resource pool set U mode2 includes full sensing.
  • a method performed by a user equipment is proposed, which is characterized by comprising: acquiring information related to SL resource allocation, which includes a resource pool set U mode2 . and, determining a resource pool u current,2 , wherein the resource pool u current,2 is one of the corresponding resource selection mechanism sets in the resource pool set U mode2 including at least one resource selection mechanism supported by the UE or Any resource pool among multiple resource pools. and, determining a resource selection mechanism m current,2 , where the resource selection mechanism m current,2 is the resource selection with the highest priority supported by the UE in the resource selection mechanism set corresponding to the resource pool u current,2 mechanism. And, SL resource allocation mode 2 is performed based on the resource selection mechanism m current,2 and the resource pool u current, 2.
  • a user equipment comprising: a processor; and a memory storing instructions, wherein the instructions execute the above-mentioned method when executed by the processor.
  • the present invention provides a method, by flexibly setting the rules for determining the resource selection mechanism and the resource pool, so that in the SL resource allocation mode 2, the resources can be allocated in the appropriate resource pool according to the appropriate resource selection mechanism, which improves the SL resource allocation mode 2 performance.
  • FIG. 1 is a flowchart illustrating a method performed by a user equipment according to Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart illustrating a method performed by a user equipment according to Embodiment 2 of the present invention.
  • Fig. 3 shows a block diagram of the user equipment UE involved in the present invention.
  • the 5G mobile communication system and its subsequent evolved versions are used as an example application environment to specifically describe various embodiments according to the present invention.
  • the present invention is not limited to the following embodiments, but can be applied to more other wireless communication systems, such as communication systems after 5G and 4G mobile communication systems before 5G.
  • AGC Automatic Gain Control, automatic gain control
  • AMF Access and Mobility Management Function, access and mobility management function
  • BWP Bandwidth Part, bandwidth fragment
  • CP Cyclic Prefix, cyclic prefix
  • CRB Common Resource Block, common resource block
  • CSI Channel-state Information, channel state information
  • DM-RS Also known as DMRS, Demodulation reference signal, demodulation reference signal
  • eNB E-UTRAN Node B, E-UTRAN Node B
  • E-UTRAN Evolved UMTS Terrestrial Radio Access Network
  • Evolved UMTS Terrestrial Radio Access Network Evolved UMTS Terrestrial Radio Access Network
  • GLONASS GLObal NAvigation Satellite System, global navigation satellite system
  • gNB NR Node B, NR Node B
  • GNSS Global Navigation Satellite System, global navigation satellite system
  • GPS Global Positioning System, global positioning system
  • HARQ-ACK HARQ Acknowledgement, HARQ acknowledgment
  • ID Identity (or Identifier), identity, identifier
  • LTE Long Term Evolution, Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • MAC Medium Access Control, medium access control
  • MAC CE MAC Control Element, MAC control element
  • MIB Master Information Block, the main information block
  • MIB-SL Master Information Block-Sidelink, Master Information Block-Sidelink
  • MIB-SL-V2X Master Information Block-Sidelink-V2X, Master Information Block-Straight-Vehicle to Any Entity
  • MIB-V2X Master Information Block-V2X, Master Information Block - Vehicle to Any Entity
  • MME Mobility Management Entity, mobility management entity
  • NAS Non-Access-Stratum, non-access stratum
  • NDI New Data Indicator, new data indicator
  • NR "New Radio", fifth generation radio access technology, fifth generation radio access technology
  • P2V Pedestrian-to-Vehicle, pedestrian to vehicle
  • P2X Pedestrian-to-everything, pedestrian to any entity
  • PBCH Physical Broadcast Channel, physical broadcast channel
  • PDCCH Physical Downlink Control Channel, physical downlink control channel
  • PDCP Packet Data Convergence Protocol, Packet Data Convergence Protocol
  • PSBCH Physical Sidelink Broadcast Channel, physical direct broadcast channel
  • PSCCH Physical Sidelink Control Channel, physical straight control channel
  • PSFCH Physical Sidelink Feedback Channel, physical direct feedback channel
  • PSSCH Physical Sidelink Shared Channel, physical straight shared channel
  • PRB Physical Resource Block, physical resource block
  • PSS Primary Synchronization Signal, the main synchronization signal
  • PSS-SL Primary Synchronization Signal for Sidelink, straight main synchronization signal
  • PSSS Primary Sidelink Synchronization Signal, the main straight synchronization signal
  • QZSS Quasi-Zenith Satellite System, Quasi-Zenith Satellite System
  • RB Resource Block, resource block
  • RBG Resource Block Group, resource block group
  • RLC Radio Link Control, Radio Link Control Protocol
  • RRC Radio Resource Control
  • RV Redundancy Version, redundant version
  • S-BWP Sidelink Bandwidth Part, straight bandwidth segment
  • S-MIB Sidelink Master Information Block, straight main information block
  • S-PSS Sidelink Primary Synchronization Signal, straight main synchronization signal
  • S-SSB Sidelink SS/PBCH block, direct synchronization signal/physical broadcast channel block
  • S-SSS Sidelink Secondary Synchronization Signal, straight auxiliary synchronization signal
  • SCI Sidelink Control Information, straight control information
  • SCS Subcarrier Spacing, subcarrier spacing
  • SIB System Information Block, system information block
  • SL BWP Sidelink Bandwidth Part, straight bandwidth segment
  • SL MIB Sidelink Master Information Block, straight main information block
  • SL PSS Sidelink Primary Synchronization Signal, straight main synchronization signal
  • SL SS Sidelink Synchronisation Signal, straight synchronization signal
  • SL SSID Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), straight synchronization signal identifier
  • SL SSB Sidelink SS/PBCH block, straight sync signal/physical broadcast channel block
  • SL SSS Sidelink Secondary Synchronization Signal, straight auxiliary synchronization signal
  • SL-SCH Sidelink Shared Channel, straight shared channel
  • SLSS Sidelink Synchronisation Signal, straight synchronization signal
  • SLSS ID Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), straight synchronization signal identifier
  • SLSSID Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), straight synchronization signal identifier
  • SSB SS/PBCH block, synchronization signal/physical broadcast channel block
  • SSB-SL SS/PBCH block for Sidelink, straight sync signal/physical broadcast channel block
  • SSS Secondary Synchronization Signal, secondary synchronization signal
  • SSS-SL Secondary Synchronization Signal for Sidelink, straight auxiliary synchronization signal
  • SSSB Sidelink SS/PBCH block, straight line synchronization signal/physical broadcast channel block
  • SSSS Secondary Sidelink Synchronization Signal, auxiliary straight line synchronization signal
  • Sub-channel sub-channel
  • S-GW Serving Gateway, serving gateway
  • Transport Block transport block
  • UE User Equipment, user equipment
  • UMTS Universal Mobile Telecommunications System
  • Universal Mobile Telecommunications System Universal Mobile Telecommunications System
  • UPF User Plane Function, user plane function
  • V2I Vehicle-to-Infrastructure, Vehicle-to-Infrastructure
  • V2N Vehicle-to-network, vehicle to network
  • V2P Vehicle-to-Pedestrian, Vehicle to Pedestrian
  • V2V Vehicle-to-vehicle, vehicle to vehicle
  • V2X Vehicle-to-everything, vehicle to any entity
  • VRB Virtual Resource Block, virtual resource block
  • symbol may refer to an OFDM symbol (OFDM symbol).
  • X can be one or more carriers (such as SL carriers), or one or more BWPs (such as SL BWPs), or one or more resource pools (resource pools, or sidelink resource pools), or one or more link (e.g. UL, e.g. DL, e.g. SL), or one or more channels (e.g.
  • carriers such as SL carriers
  • BWPs such as SL BWPs
  • resource pools resource pools, or sidelink resource pools
  • link e.g. UL, e.g. DL, e.g. SL
  • channels e.g.
  • PSSCH PSSCH
  • RBGs RBGs
  • RBs RBGs
  • Multiple "occasions” eg PDCCH listening occasions, eg PSSCH transmission occasions, eg PSSCH reception occasions, eg PSFCH transmission occasions, eg PSFCH reception occasions, etc.
  • OFDM symbols or one or more time slots, or one or more subframes, or one or more half-frames, or one or more frames, or one or more arbitrary time and/or frequency and/or code domains and/or or airspace resources, etc.
  • “higher layers” may refer to one or more protocol layers or protocol sublayers above the physical layer.
  • pre-configure may be pre-configuration in a higher layer protocol.
  • preset eg, preset according to the specification of the high-level protocol
  • preset in a specific storage location in the UE
  • preset eg, preset according to the specification of the high-level protocol
  • configuration may be configured through signaling in a higher layer protocol.
  • it is configured for the UE through RRC signaling.
  • not configured may be replaced by “not preconfigured”. vice versa.
  • not configured may be replaced by “not configured and or preconfigured”. vice versa.
  • not configured may be replaced by “not (pre)configured”. vice versa.
  • the parameter X refers to may be "X-r8", or “X-r9", or “X-r10", or “X-r11", or “X-r12”, or “X-r13", or “X-r14”, or “X-r15”, or “X-r16", or “X-r17”, or “ X-r18", or “X-r19”, or “X-r20”, etc. vice versa.
  • “pdsch-HARQ-ACK-CodebookList” may be used to refer to the parameter pdsch-HARQ-ACK-CodebookList-r16. vice versa.
  • time-domain resources may also be referred to as time resources.
  • frequency-domain resources may also be referred to as frequency resources.
  • a resource block may refer to a virtual resource block (VRB), a physical resource block (PRB), a common resource block (CRB), or a Refers to an otherwise defined resource block.
  • VRB virtual resource block
  • PRB physical resource block
  • CRB common resource block
  • the numbering of frequency domain resources may start from 0.
  • the set of sub-channels in the resource pool can be expressed as the set of corresponding sub-channel numbers as
  • a set of subcarriers in one resource block may be represented as ⁇ 0, 1, . . . , 11 ⁇ by a set of corresponding subcarrier numbers.
  • the numbering of time domain resources may start from 0.
  • the set of slots in a subframe can be represented as ⁇ 0, 1 ⁇ with the corresponding set of slot numbers.
  • SL transport may refer to one or more of the given items below, or any one of:
  • PSSCH transmission may be replaced with “PSCCH and/or PSSCH transmission", or "PSCCH/PSSCH transmission”.
  • the interface between devices can be called PC5 interface, and the corresponding transmission link can be called at the physical layer. It is a "straight" or “sidelink” (SL for short) link to distinguish it from an uplink (uplink, UL for short) link and a downlink (downlink, DL for short) link.
  • Communication based on the SL link may be referred to as sidelink communication.
  • the SL link based on the LTE technology may be referred to as an LTE SL link.
  • the SL link based on NR technology can be called NR SL link.
  • 5G V2X communication can be based on LTE SL or NR SL.
  • SL refers to NR SL
  • SL communication refers to NR SL communication
  • V2X communication refers to NR SL-based V2X communication.
  • the physical layer of the SL link can support one or more of in-coverage, out-of-coverage, and partial-coverage scenarios.
  • Mode of transmission such as broadcast transmission, groupcast transmission, unicast transmission, and so on.
  • the SCS subcarrier spacing, subcarrier spacing, denoted as ⁇ f, in kHz
  • the SCS subcarrier spacing, subcarrier spacing, denoted as ⁇ f, in kHz
  • the SCS corresponding to the SL link can be 15kHz (normal CP), or 30kHz (normal CP), or 60kHz (normal CP or extended CP);
  • the SCS corresponding to the SL link can be 60kHz (normal CP or extended CP), or 120kHz (normal CP).
  • ⁇ may be the SCS configuration of the SL carrier; eg, all SL transmissions in one SL carrier use the same SCS configuration and/or the same CP.
  • ⁇ can be an SCS configuration of SL BWP (Sidelink Bandwidth Part, or S-BWP, or SBWP, or SL-BWP, or BWP-SL, or BWP for short); for example , all SL transmissions in an SL BWP use the same SCS configuration and/or the same CP.
  • ⁇ can be the SCS configuration of a resource pool; eg, all SL transmissions in a resource pool use the same SCS configuration and/or the same CP.
  • Signals and channels related to SL operation can include:
  • SL PSS Segment Primary Synchronization Signal
  • S-PSS S-PSS
  • SPSS S-PSS
  • PSS-SL PSSS
  • PSSS Primary Sidelink Synchronization Signal
  • SL SSS Segment Secondary Synchronization Signal
  • S-SSS Segment Secondary Synchronization Signal
  • SSSS Segment Secondary Synchronization Signal
  • SL-SSS SSS-SL
  • SSSS Secondary Sidelink Synchronization Signal
  • ⁇ PSBCH Physical Sidelink Broadcast Channel, physical direct broadcast channel
  • ⁇ PSCCH Physical Sidelink Control Channel, physical direct control channel
  • ⁇ PSSCH Physical Sidelink Shared Channel, physical direct shared channel
  • ⁇ PSFCH Physical Sidelink Feedback Channel, physical direct feedback channel
  • SL PSS, SL SSS and PSBCH together can be organized in a block-like form on time/frequency resources, such as called S-SSB (Sidelink Synchronization Signal/PSBCH block, or SSS/PSBCH block, straight synchronization signal/ Physical Direct Broadcast Channel Block), or SSS/PSBCH block, or SS/PSBCH block, or S-SS/PSBCH block, or SL SSB, or SSSB, or SL-SSB , or SSB-SL.
  • the transmission bandwidth (eg, 11 resource blocks) of the S-SSB may be located within the corresponding SL carrier (eg, within one SL BWP configured within the SL carrier).
  • SL PSS and/or SL SSS may carry SL SSID (Sidelink Synchronization Identity, or Sidelink Synchronization Identifier, straight-line synchronization identifier, or Sidelink Synchronization Signal Identity, or Sidelink Synchronization Signal Identifier, straight-line synchronization signal identifier, or Sidelink Identity, straight-line identification, or Physical-layer Sidelink Identity, physical layer direct identification, or SL-SSID, or SSID-SL, or SLSSID, or SLSS ID, or S-SSID, etc.), PSBCH can carry SL MIB (Sidelink Master Information Block, straight main information block, or SL-MIB, or S-MIB, or MIB-SL, or MasterInformationBlockSidelink), for example, configured by the parameter masterInformationBlockSidelink.
  • SL SSID Sidelink Synchronization Identity
  • S-MIB S-MIB
  • MIB-SL MasterInformationBlockSidelink
  • the time domain and/or frequency domain resources for transmitting the S-SSB can be configured by high layer parameters.
  • the position of the S-SSB in the frequency domain can be configured through the parameter absoluteFrequencySSB-SL (or the parameter sl-AbsoluteFrequencySSB).
  • one or more synchronization configuration items can be configured through the parameter sl-SyncConfigList, and each synchronization configuration item can be configured through the parameter numSSBwithinPeriod-SL (or the parameter sl-NumSSB-WithinPeriod) in a length of within the S-SSB period of 16 frames S-SSBs, where the number (or index) is The index of the time slot (slot) where the S-SSB is located in a period with a length of 16 frames can be in It can be configured by parameter timeOffsetSSB-SL (or parameter sl-TimeOffsetSSB), It can be configured through the parameter timeIntervalSSB-SL (or parameter sl-TimeInterval).
  • the synchronization source (synchronization source, or synchronization reference, or synchronization reference source, synchronization reference source) related to SL synchronization can include GNSS (Global navigation satellite system, global navigation satellite system), gNB, eNB and UE (eg NR UE, ie LTE UE, ie NR UE or LTE UE).
  • GNSS Global navigation satellite system, global navigation satellite system
  • gNB Global navigation satellite system
  • eNB eg.g NR UE, ie LTE UE, ie NR UE or LTE UE.
  • a UE serving as a synchronization source eg, a UE transmitting S-SSB
  • SyncRefUE e.g, a UE transmitting S-SSB
  • GNSS may include GPS (Global Positioning System), GLONASS (GLObal NAvigation Satellite System), BeiDou (Beidou Navigation Satellite System), Galileo (Galileo Navigation Satellite System), QZSS (Quasi-Zenith) Satellite System, quasi-zenith satellite system), etc.
  • GPS Global Positioning System
  • GLONASS GLObal NAvigation Satellite System
  • BeiDou Beidou Navigation Satellite System
  • Galileo Galileo Navigation Satellite System
  • QZSS Quadasi-Zenith Satellite System, quasi-zenith satellite system
  • One or more (eg, one) SL BWPs may be configured within the SL carrier.
  • the start symbol that can be used for SL transmission can be configured through the parameter startSLsymbols (or the parameter sl-StartSymbol) (for example, the number of the symbol in the time slot is ), and configure the number of symbols that can be used for SL transmission through the parameter lengthSLsymbols (or the parameter sl-LengthSymbols) (for example, record the number of symbols as ), where the symbols can be consecutive symbols.
  • the set of values can be written as E.g
  • the set of values can be written as E.g
  • the "symbols available for SL transmission" may be referred to as "SL symbols". Denote the set of SL symbols (in chronological order) as but For example, if Then the set of SL symbols is (7, 8, 9, 10, 11, 12, 13 ⁇ .
  • time slots that meet certain conditions can be used for SL transmission.
  • at least symbols in the slot symbol symbol is an uplink symbol (for example, a time slot that satisfies the condition configured through tdd-UL-DL-ConfigurationCommon in servingCellConfigCommon in SIB1).
  • the time slot must be in a set of time slots in a configured resource pool.
  • One or more resource pools can be configured in an SL BWP, where, in each resource pool,
  • the position of the starting resource block of the starting subchannel of the resource pool in the SL BWP can be configured through the parameter startRB-Subchannel (or the parameter s1-StartRB-Subchannel).
  • each subchannel can be composed of one or more resource blocks, and the specific number of resource blocks (called the size of the subchannel, for example, denoted as n subChannelsize ) can be configured by the parameter subchannelsize (or parameter sl-SubchannelSize) .
  • the n subChannelsize resource blocks may be contiguous in the frequency domain.
  • the number of subchannels occupied by the resource pool can be configured through the parameter numSubchannel (or the parameter sl-NumSubchannel) (denoted as ). said The subchannels may be contiguous in the frequency domain.
  • the number of PRBs occupied by the resource pool can be configured through the parameter sl-RB-Number (denoted as ). Alternatively, the UE may assume that the last of the PRBs mod PRBs will not be used.
  • each sub-channel in a resource pool can be numbered as Among them, the sub-channel numbered i can be called "sub-channel i"
  • a time slot bitmap can be configured through the parameter timeresourcepool (or parameter sl-TimeResource) to indicate which time slot or time slots in a candidate time slot set belong to the resource pool. It can be seen that two consecutive time slots in one resource pool may be discontinuous in time (eg, time slot 0 and time slot 6 in one frame may be two consecutive time slots in one resource pool). For convenience, the set of time slots in a resource pool can be written as where T'max is the number of time slots in the set of time slots.
  • a resource pool may be configured as a "transmission resource pool", and the resources therein may be used for data transmission and/or reception of HARQ-ACK information, etc. in the SL communication.
  • a resource pool may also be configured as a "reception resource pool", and the resources therein may be used for data reception and/or transmission of HARQ-ACK information, etc. in the SL communication.
  • the allocation of resources related to the SL operation may include:
  • Mode 1 (Mode 1, or resource allocation mode 1, Resource Allocation Mode 1, or direct resource allocation mode 1, Sidelink Resource Allocation Mode 1): The base station schedules resources for SL transmission.
  • Mode 2 (Mode 2, or resource allocation mode 2, Resource Allocation Mode 2, or direct resource allocation mode 2, Sidelink Resource Allocation Mode 2): UE determines the resources used for SL transmission (that is, the base station does not participate in the resources used for SL transmission resource scheduling). For example, a UE performing an SL transmission operation autonomously determines resources for SL transmission.
  • the UE may schedule data transmission through SCI (Sidelink Control Information, direct control information).
  • SCI Servicelink Control Information, direct control information
  • SL operation can support "two-stage SCI" (two-stage SCI), where the first stage SCI (1 st -stage SCI) can contain information such as resource reservation and/or resource allocation, so that all monitoring (monitor) SL
  • the UE of the link senses resource reservation and/or resource allocation; the second-stage SCI ( 2nd -stage SCI) may include other information, such as information related to HARQ feedback.
  • SCI Servicelink Control Information
  • the format of the first stage SCI may be SCI format 1-A (or written as "SCI format 1_A").
  • SCI Format 1_A The following are some examples of information that can be included in SCI Format 1-A:
  • Frequency resource assignment (Frequency resource assignment).
  • Time resource assignment (Time resource assignment).
  • DMRS pattern ⁇ DMRS pattern (DMRS pattern).
  • the format of the second-stage SCI may be SCI format 2-A (or written as "SCI format 2_A"), or SCI format 2-B (or written as "SCI format 2_B").
  • SCI Format 2-A or written as "SCI format 2_A”
  • SCI format 2-B or written as "SCI format 2_B”
  • Source layer-1 identifier (Source Layer-1 ID, or Layer-1 Source ID, Layer-1 Source Identifier, or Physical Layer Source ID, Physical Layer Source Identifier, or (where the context is clear) ) is called Source ID, source identifier).
  • Destination Layer-1 ID or Layer-1 Destination ID, Layer-1 Destination Identifier, or Physical Layer Destination ID, Physical Layer Destination Identifier, or (where the context is clear ) is called Destination ID, destination identifier).
  • HARQ Process ID HARQ Process ID
  • HARQ Process Number HARQ Process Number
  • New Data Indicator (New Data Indicator, NDI).
  • the first stage SCI can be carried on PSCCH.
  • the second stage SCI can be multiplexed on PSCCH-associated (or scheduled) PSSCH together with the data to be transmitted.
  • PSCCH and its associated PSSCH can be multiplexed on time domain and/or frequency domain resources allocated for SL transmission in a certain way (for example, the subchannel where the starting resource block of PSCCH is located is the starting point of its associated PSSCH).
  • the starting subchannel for another example, the starting resource block of the PSCCH is the starting resource block of the starting subchannel of the PSSCH to which it is associated).
  • the first stage SCI and/or the corresponding second stage SCI schedules the PSSCH (or schedules the transmission of the PSSCH, or schedules the transmission of the TB carried in the PSSCH).
  • the sender may be referred to as a TX UE and the receiver may be referred to as an RX UE.
  • the RX UE may feed back information related to PSCCH and/or PSSCH reception (eg, referred to as "HARQ-ACK information") over the PSFCH.
  • HARQ-ACK information information related to PSCCH and/or PSSCH reception
  • the RX UE receives one PSSCH in one resource pool, and the value of the "HARQ feedback enabled/disabled indicator" field in the corresponding SCI is 1, the RX The UE provides HARQ-ACK information through PSFCH transmission in the resource pool.
  • Such HARQ-ACK information may be referred to as "HARQ-ACK information related to SL transmission reported on SL”.
  • the HARQ-ACK information related to SL transmission reported on the SL may indicate a positive acknowledgement (ACK, Acknowledgement, or Positive Acknowledgement), for example, indicating that the data carried by the corresponding PSCCH and/or PSSCH can be correctly decoded, Or indicate a negative acknowledgment (NACK, or NAK, Negative Acknowledgement), for example, indicating that the data carried by the corresponding PSCCH and/or PSSCH cannot be correctly decoded; in other configurations, the HARQ-ACK related to SL transmission reported on the SL The information can only indicate NACK (for example, when the data carried by the corresponding PSCCH and/or PSSCH can be correctly decoded, no HARQ feedback is sent; when the data carried by the corresponding PSCCH and/or PSSCH cannot be correctly decoded, NACK is sent) .
  • ACK and “NACK” may be referred to as HARQ-ACK values (HARQ-ACK values).
  • PSFCH resources may appear periodically in a resource pool, such as a corresponding period (for example, referred to as "PSFCH period” or "PSFCH resource period", such as denoted as
  • a resource pool such as a corresponding period (for example, referred to as "PSFCH period” or "PSFCH resource period", such as denoted as
  • the unit is the number of time slots
  • the parameter periodPSFCHresource or parameter sl-PSFCH-Period
  • it can be used to indicate that there is no PSFCH resource configured in the corresponding resource pool.
  • a resource pool is not configured with PSFCH-related parameters (such as the parameter sl-PSFCH-Config, or one or more parameters in the parameter sl-PSFCH-Config), or the parameters configured in the parameter sl-PSFCH-Config If the PSFCH period is 0, it means that the resource pool is not configured with PSFCH resources. For another example, if a resource pool has been configured with the parameter s1-PSFCH-Config and the value of the PSFCH period configured in the parameter s1-PSFCH-Config is not 0, it means that the resource pool has been configured with PSFCH resources.
  • PSFCH-related parameters such as the parameter sl-PSFCH-Config, or one or more parameters in the parameter sl-PSFCH-Config
  • the parameters configured in the parameter sl-PSFCH-Config If the PSFCH period is 0, it means that the resource pool is not configured with PSFCH resources.
  • a time slot in which PSFCH resources are configured may be referred to as a "PSFCH time slot".
  • the symbols related to PSFCH transmission may be the last one or more SL symbols of the slot, eg, for PSFCH format 0, may be the last three SL symbols (eg the symbol symbol and symbol Among them, the symbol Can be used for AGC, in addition, the content transmitted on this symbol can be copied from the symbol content transmitted on); symbol Can be used for PSFCH transmission; symbol Can be used as a gap (GAP) symbol, or a guard (GUARD) symbol.
  • Other SL symbols of one PSFCH slot can be used to transmit other SL signals/channels, such as PSCCH, PSSCH, etc.
  • the allocated SL resources may be determined in one or more ways. For example, a set of “available resources” (or “free resources”) may be determined in different ways, and then one or more selected (eg, randomly selected) from the set of "available resources" (or “free resources") SL resources are used for SL transmission.
  • the manner in which the set of "available resources" is determined may be referred to as “resource selection mechanism”, or “resource selection method”, or “resource selection method”.
  • resource selection scheme or “resource determination mechanism”, or “resource determination method”, or “resource determination scheme”, or “resource allocation mechanism”
  • resource allocation mechanism means “resource allocation mechanism”, or “resource allocation method” (resource allocation method), or “resource allocation scheme” (resource allocation scheme), or prefix the above name with "SL” (for example, “SL resource selection mechanism” ),and many more.
  • the set of all operations that determine the allocated SL resources is referred to as the "resource selection mechanism”.
  • the set of partial operations that determine the allocated SL resources is referred to as a "resource selection mechanism”.
  • the SL resource allocation mode 2 is executed based on the resource selection mechanism.
  • the operation corresponding to the SL resource allocation mode 2 may include that the high-level protocol entity (for example, the MAC layer protocol entity) requests the physical layer protocol entity at the time slot n to determine a set of input parameters (for example, denoted as P A ) to determine one that can be selected from the set of input parameters.
  • a resource subset of resources (denoted as SA, for example), and the resource subset SA is reported by a physical layer protocol entity to a higher layer protocol entity (eg, a MAC layer protocol entity).
  • the input parameter set PA may include one or more of the following:
  • a resource pool for resource selection (eg, denoted as usel ).
  • the resource subset SA may be a subset of a candidate resource set in the resource pool usel .
  • Priority eg layer one priority, or physical layer priority, eg denoted as prio TX ).
  • the "resource size” may include the number of subchannels occupied by each resource (eg, the number of consecutive subchannels), for example, denoted as L subCH .
  • the "resource size” may include the number of time slots occupied by each resource (for example, the number of consecutive time slots), for example, denoted as L slot .
  • Resource reservation interval (resource reservation interval), for example, denoted as P rsvp_TX .
  • a set of resources for re-evaluation operations eg denoted (r 0 , r 1 , r 2 , . . . ).
  • a set of resources for pre-emption operations eg (r' 0 , r' 1 , r' 2 , . . . ).
  • the set SA can be initialized as a set composed of all candidate resources (for example, denoted as S all ), and then the unavailable resources are removed from the set SA , and finally the set SA is obtained. That is, the subset of resources requested.
  • the "set of all candidate resources S all " may be all corresponding L subCH subchannels and L slots in the resource pool usel within the time interval [n+T 1 , n+T 2 ]
  • a set of resources of time slots, or a subset of the set e.g., only including resources in time slots that can be used to transmit PSCCH and/or PSSCH.
  • T1 and T2 may be two values determined by the UE and satisfying certain conditions. For example, T1 may be related to the processing capability of the UE, and T2 may be related to the remaining packet delay budget.
  • the "unavailable resources" removed from the set SA may include one or more of the following:
  • Unavailable resources identified by the UE through sensing operations For example, by monitoring or detecting or receiving resource reservation information (such as resource reservation information in SC1) sent on the SL link (such as sent by other UEs), it is determined that the A set of reserved resources and/or a set of resources that cannot be determined to be reserved and/or a set of resources that may conflict and/or a set of resources that have been allocated and/or a set of resources that are not available for allocation, and the like.
  • resource reservation information such as resource reservation information in SC1
  • SC1 resource reservation information sent on the SL link
  • Unavailable resources indicated by other UEs or base stations For example, other UEs determine the set of reserved resources and/or cannot determine whether they have been reserved by monitoring or detecting or receiving resource reservation information (such as resource reservation information in the SCI) sent on the SL link. A set of reserved resources and/or a set of resources that may conflict and/or a set of resources that have been allocated and/or a set of resources that are not available for allocation and/or a set of resources that are not allocated preferentially, and the like. Other UEs may indicate information related to these resources to the UE through signaling carried in the SL transmission.
  • resource reservation information such as resource reservation information in the SCI
  • the operation corresponding to SL resource allocation mode 2 may include selecting from the resource subset SA for one PSSCH /PSCCH transmission (eg PSSCH transmission, or PSCCH transmission, or PSSCH multiplexed in the same resource). transmission and PSCCH transmission).
  • PSSCH /PSCCH transmission eg PSSCH transmission, or PSCCH transmission, or PSSCH multiplexed in the same resource.
  • the operations corresponding to the SL resource allocation mode 2 may include selecting resources for multiple PSSCH /PSCCH transmissions from the resource subset SA.
  • the operation corresponding to the SL resource allocation mode 2 may include selecting a transmission resource for a transport block from the resource subset SA, for example, selecting an initial transmission block for the transport block from the resource subset SA . transmission and the resources required for each retransmission.
  • the operations corresponding to the SL resource allocation mode 2 may include selecting transmission resources for multiple transmission blocks from the resource subset SA, for example, selecting from the resource subset SA for the multiple transmissions The initial transmission of each transport block in the block and the resources required for each retransmission.
  • a "random selection" method can be used, for example, selecting a resource from the resource subset SA in an equal probability manner .
  • the resource selection mechanism can be considered as a "sensing-based resource selection mechanism".
  • the sensing operation may be "full sensing” (full sensing, or simply “sensing", sensing), for example, the UE must listen to the sensing window (for example, the time interval ) within the corresponding time window) belonging to (or, may belong to) the resource pool usel , except for those time slots that cannot be monitored due to the UE's capability limitations (eg, cannot be executed due to half-duplex limitations) All time slots except those time slots monitored during SL transmission) and/or some special time slots (for example, time slots that cannot be used to transmit PSCCH and/or PSSCH ); -SensingWindow) to configure, It may be related to the processing capability of the UE.
  • the corresponding resource selection mechanism may be referred to as "full-sensing-based resource selection mechanism", or “full-sensing-based resource selection”, or “full-sensing” for short, or “full-sensing” for short.
  • Sensing-based resource selection mechanism or “sensing-based resource selection”, or simply “sensing".
  • the sensing operation may also be "partial sensing", for example, the UE only needs to listen to the partial time slots (e.g. periodicity) within the sensing window that belong (or, may belong to) the resource pool usel part of the time slot in which sexuality occurs).
  • the corresponding resource selection mechanism may be referred to as “partial sensing-based resource selection mechanism”, or “partial sensing-based resource selection”, or simply “partial sensing”.
  • the resource selection mechanism can be considered a "non-sensing-based resource selection mechanism".
  • the set SA may be equal to the "set S all composed of all candidate resources", or a set obtained by excluding some special resources from the "set S all composed of all candidate resources".
  • the special resource may include one or more of the following:
  • the corresponding resource selection mechanism may be referred to as "random resource selection”, or simply “random selection”, or “non-sensing-based random resource selection”.
  • sensing-based random resource selection there may also be “sensing-based random resource selection”.
  • sensing-based random resource selection mechanism if the sensing result cannot be applied for some reason, or only part of the sensing result is applied, it can be considered as “sensing-based random resource selection”.
  • Different UEs may support different sets of resource selection mechanisms. For example, "random resource selection” is supported by all UEs. For another example, some UEs only support “full sensing” and “random resource selection”. For another example, some UEs only support “partial sensing” and “random resource selection”. For another example, some UEs support "full sensing", “partial sensing” and “random resource selection”.
  • the set of resource selection mechanisms supported by the UE may be denoted as M cap .
  • random resource selection can be used as an exception handling mechanism or a fallback mechanism for other resource selection mechanisms (such as “full sensing”) (for example, in V2V communication, when no sensing results are available temporarily can fall back from “full sensing” to "random resource selection”), so “random resource selection” can also be applied to UEs that are not sensitive to energy consumption.
  • resource selection mechanisms such as “partial sensing” and “random resource selection” is that it increases the probability of conflict between resources selected by different UEs.
  • SL resource selection mechanisms such as “partial sensing”, “random resource selection”, etc. can be applied to SL communication as part of the "SL energy saving” feature. For example, “partial sensing” can only be used if “SL power saving” is enabled (or turned on, or configured), and so on.
  • the UE may be in one of a number of states related to "SL power saving” (e.g. referred to as SL state, or SL mode, or SL communication mode, etc.), such as:
  • the first SL state may be the "SL non-power saving state", eg, UEs in this SL state are not sensitive to power (or energy) consumption, and accordingly, the resource selection mechanism used does not need to specifically consider power (or power). or energy) consumption.
  • the first SL state may also be referred to as “first SL mode”, or “first SL communication mode”, and so on.
  • the SL non-power saving state may also be referred to as "SL non-power saving mode", or "SL non-power saving communication mode", and so on.
  • An example of SL non-energy-efficient communication methods may be some specific V2X communication methods (eg, V2V).
  • the second SL state may be the "SL energy saving state", for example, the UE in this SL state is relatively sensitive or very sensitive to the consumption of power (or energy), and accordingly, the resource selection mechanism used needs to consider the power (or energy) ) consumption, for example, to avoid or reduce the use of power-hungry resource selection mechanisms.
  • the second SL state may also be referred to as "second SL mode", or “second SL communication mode”, and so on.
  • the SL power saving state may also be referred to as "SL power saving mode", or "SL power saving communication mode", or the like.
  • An example of SL energy-saving communication methods may be some specific V2X communication methods (eg, V2P).
  • Another example of the SL energy saving communication scheme may be the SL communication scheme for public safety.
  • SL power saving can be enabled (or “turned on”, or “configured”) or disabled (or turned off) through a higher layer protocol parameter (for example called sl-powerSavingConfig). For example, if the parameter sl-powerSavingConfig does not exist (or is not configured), it means that "SL energy saving” is not enabled or has been disabled. For another example, if the parameter sl-powerSavingConfig exists (or has been configured), it means that "SL energy saving" is enabled.
  • the value of the parameter sl-powerSavingConfig (or a certain parameter in the information element corresponding to the parameter sl-powerSavingConfig) is a predefined value (for example, “disabled”, “false”, etc.), It means that "SL energy saving” is not enabled or disabled.
  • the value of the parameter sl-powerSavingConfig (or a certain parameter in the information element corresponding to the parameter sl-powerSavingConfig) is a predefined value (for example, “enabled”, "true”, etc.), It means that "SL energy saving" is enabled.
  • the set M cap of resource selection mechanisms supported by the UE may be related to the SL state in which the UE is located. For example, if the UE is in the first SL state, the set M cap is equal to the set M cap,1 ; for another example, if the UE is in the second SL state, the set M cap is equal to the set M cap,2 . Wherein, optionally, the set M cap,1 and the set M cap,2 may be the same or different.
  • the set M cap,1 is ⁇ full sensing ⁇ ; in another example, the set M cap,1 is ⁇ full sensing, random resource selection ⁇ ; in another example, the set M cap ,1 is ⁇ full sensing sensing, partial sensing, random resource selection ⁇ ; another example, the set M cap,2 may be ⁇ random resource selection ⁇ ; another example, the set M cap,2 may be ⁇ partial sensing, random resource selection ⁇ .
  • Embodiment 1 of the present invention The following describes a method executed by a user equipment according to Embodiment 1 of the present invention with reference to FIG. 1 .
  • FIG. 1 is a flowchart illustrating a method performed by a user equipment according to Embodiment 1 of the present invention.
  • the steps performed by the user equipment UE include part or all of step S101 , step S103 , step S105 and step S107 .
  • step S101 information related to SL resource allocation is acquired.
  • part or all of the "information related to SL resource allocation" is predefined information.
  • part or all of the "information related to SL resource allocation" is information configured in a higher layer protocol.
  • part or all of the "information related to SL resource allocation" is information preconfigured in a higher layer protocol.
  • part or all of the "information related to SL resource allocation" is information for resource allocation mode 2.
  • the "information related to SL resource allocation" may include information about a resource pool set (for example, denoted as U mode2 ).
  • the resource pool set U mode2 is a predefined set.
  • the resource pool set U mode2 is a set configured in a high-level protocol.
  • the resource pool set U mode2 is a set pre-configured in a high-level protocol.
  • the resource pools in the resource pool set U mode2 are transmission resource pools.
  • the resource pool set U mode2 is a set of part or all of the resource pools for resource allocation mode 2 .
  • the resource pool set U mode2 may be configured or pre-configured through one or more high-level protocol parameters.
  • the resource pool set U mode2 is configured by the parameter sl- TxPoolSelectedNormal -r16.
  • the resource pool set U mode2 is configured by the parameter sl- TxPoolExceptional -r16.
  • the resource pool set U mode2 is jointly configured by the parameter sl- TxPoolSelectedNormal -r16 and the parameter sl-TxPoolExceptional-r16.
  • some resource pools in the resource pool set U mode2 form a set U mode2,legacy , and the rest of the resource pools form a set U mode2,new .
  • the set U mode2 , legacy is configured by the parameter sl-TxPoolSelectedNormal2-r16
  • the set U mode2 , new is configured by the parameter sl-TxPoolSelectedNormal2-r17.
  • the set U mode2 , legacy can be configured by the parameter sl-TxPoolExceptional-r16
  • the set U mode2 , new can be configured by the parameter sl-TxPoolExceptional2-r17.
  • each resource pool in the resource pool set U mode2 corresponds to a resource selection mechanism set, which includes one or more resource selections enabled or allowed in the resource pool mechanism.
  • the i-th resource pool in the resource pool set U mode2 (for example, denoted as u mode2, i ) corresponds to the resource selection mechanism set M i ; wherein, in is the number of resource selection mechanisms in the resource pool set U mode2 .
  • the resource selection mechanism set M i may be an empty set, that is, it does not contain any resource selection mechanism.
  • One or more (for example, all) i values within the resource selection mechanism set M i may include one or more of the following:
  • i can only use the resource selection mechanism included in the corresponding resource selection mechanism set Mi.
  • One or more (for example, all) i values in the resource pool u mode2,i can not use resource selection mechanisms not included in the corresponding resource selection mechanism set Mi.
  • the value of one or more (for example, all) i in the resource pool u mode2,i can determine the corresponding resource selection mechanism set M i in one or more of the following ways:
  • the set Mi of resource selection mechanisms is a predefined set.
  • the predefined set is related to i.
  • the resource selection mechanism set Mi is a set configured in a higher layer protocol.
  • the set configured in the higher layer protocol is related to i.
  • the resource selection mechanism set Mi is a set pre-configured in higher layer protocols.
  • the pre-configuration in the higher layer protocol is related to i.
  • the parameter sl-resourceSelectionConfig is related to i, that is, different values of i may correspond to different parameters sl-resourceSelectionConfig.
  • the resource selection mechanism set configured by the parameter sl-resourceSelectionConfig corresponding to the resource pool u mode2,i is recorded as M config, i .
  • the resource selection mechanism set M i may be related to a predefined or configured or pre-configured minimum resource selection mechanism set (eg denoted as M min ).
  • M min ⁇ full sensing ⁇
  • M min ⁇ random resource selection ⁇
  • M min ⁇ full sensing, random resource selection ⁇
  • M min ⁇ full sensing,sensing-based Random resource selection ⁇
  • another example M min ⁇ full sensing, random resource selection not based on sensing ⁇
  • another example M min is an empty set.
  • M i M config,i .
  • the minimum resource selection mechanism set Mmin may be related to the SL state in which the UE is located.
  • the "information related to SL resource allocation" may include sets M min corresponding to different SL states; for example, if the UE is in the first SL state, the set M min is equal to the first minimum resource The selection mechanism set Mmin,1 ; for another example, if the UE is in the second SL state, the set Mmin is equal to the second minimum resource selection mechanism set Mmin,2 .
  • the first minimum resource selection mechanism set Mmin,1 and the second minimum resource selection mechanism set Mmin,2 may be the same or different.
  • the first minimum resource selection mechanism set Mmin,1 is ⁇ full sensing ⁇ ; in another example, the first minimum resource selection mechanism set Mmin,1 is ⁇ random resource selection ⁇ ;
  • the first minimum resource selection mechanism set M min, 1 is ⁇ full sensing, random resource selection ⁇ ; for another example, the first minimum resource selection mechanism set M min, 1 is ⁇ full sensing, sensing-based random resources
  • the first minimum resource selection mechanism set Mmin,1 is ⁇ full sensing, random resource selection not based on sensing ⁇ ; in another example, the second minimum resource selection mechanism set Mmin, 2 may be ⁇ full sensing ⁇ ; for another example, the second minimum resource selection mechanism set M min, 2 may be ⁇ random resource selection ⁇ ; for another example, the second minimum resource selection mechanism set M min, 2 may be is ⁇ full sensing, random resource selection ⁇ ; for another example, the second minimum resource selection mechanism set M min, 2 may be ⁇ partial sensing, random resource selection ⁇ ; for another example, the second minimum resource selection mechanism The set M min
  • the resource selection mechanism set corresponding to at least one resource pool in the resource pool set U mode2 includes "full sensing” and/or “partial sensing” and/or “random resource selection” and/or " Sensing-based random resource selection” and/or “Non-sensing-based random resource selection”.
  • the resource selection mechanism set corresponding to at least one resource pool in the legacy includes "full sensing” and/or “partial sensing” and/or “random resource selection” and/or Or “random resource selection based on sensing” and/or “random resource selection not based on sensing”.
  • the resource selection mechanism set corresponding to at least one resource pool in new contains "full sensing” and/or “partial sensing” and/or “random resource selection” and/or Or “random resource selection based on sensing” and/or “random resource selection not based on sensing”.
  • some resource pools in the resource pool set U mode2 (for example, the resource pool set U mode2, resource pools in legacy ) use a method to determine the corresponding resource selection mechanism set, and the rest of the resource pools (for example, all resource pools)
  • the above-mentioned resource pool set U mode2, the resource pool in new uses another method to determine the corresponding resource selection mechanism set.
  • more than one resource pool in the resource pool set U mode2 corresponds to the same parameter sl-resourceSelectionConfig.
  • configure or preconfigure the parameter sl-resourceSelectionConfig in one of the following ways:
  • All resource pools in the resource pool set U mode2 correspond to the same parameter sl-resourceSelectionConfig.
  • a part of the resource pools in the resource pool set U mode2 corresponds to a parameter sl-resourceSelectionConfig (in this case, the parameter sl-resourceSelectionConfig can be recorded as sl- resourceSelectionConfig-1, correspondingly, for this part of the resource pool, "parameter sl-resourceSelectionConfig" refers to parameter sl-resourceSelectionConfig-1), and other resource pools (for example, the resource pool set U mode2, the resource pool in new ) correspond to Another parameter sl-resourceSelectionConfig (at this time, the parameter sl-resourceSelectionConfig can be recorded as sl-resourceSelectionConfig-2, correspondingly, for this part of the resource pool, the "parameter sl-resourceSelectionConfig" refers to the parameter sl-resourceSelectionConfig-2) .
  • All elements in the resource pool set U mode2 are divided into groups (of which Can be a pre-defined or configured or pre-configured value), each group corresponds to a subset of resource pools (for example, denoted as U mode2 , 1, U mode2 , 2, ..., respectively, ), each resource pool subset corresponds to a parameter sl-resourceSelectionConfig.
  • each resource pool subset U mode2,j corresponds to a parameter sl-resourceSelectionConfig.
  • the parameter sl-resourceSelectionConfig can be recorded as sl-resourceSelectionConfig-j, correspondingly, for the resource pool subset U mode2,j , "parameter sl-resourceSelectionConfig" refers to parameter sl-resourceSelectionConfig-j).
  • any resource selection mechanism in the resource pool u mode2 does not correspond to any resource selection mechanism.
  • Applicable for example, this means that the resource pool u mode2,i does not support resource allocation using resource allocation mode 2, and accordingly, if the UE is configured to use resource allocation mode 2 for resource allocation, the resource pool cannot be selected u mode2, i ).
  • the "information related to SL resource allocation" may include a complete set of resource selection mechanisms (for example, denoted as M all ).
  • the resource selection mechanism complete set M all may include one or more of the following:
  • the full set of resource selection mechanisms M all may be related to the SL state in which the UE is located.
  • the "information related to SL resource allocation" may include a complete set of resource selection mechanisms M all corresponding to different SL states; for example, if the UE is in the first SL state, the complete set of resource selection mechanisms M all all is equal to the full set of the first resource selection mechanism (for example, denoted as M all,1 ); for another example, if the UE is in the second SL state, the full set of resource selection mechanisms M all is equal to the full set of the second resource selection mechanism (for example, , denoted as M all, 2 ).
  • the full set M all,1 of the first resource selection mechanism and the full set M all,2 of the second resource selection mechanism may be the same or different.
  • the full set of the first resource selection mechanism M all,1 is ⁇ full sensing, partial sensing, random resource selection ⁇ ; in another example, the full set of the first resource selection mechanism M all,1 is ⁇ full sensing, Partial sensing, random resource selection based on sensing, random resource selection not based on sensing ⁇ ;
  • the second resource selection mechanism full set M all, 2 may be ⁇ partial sensing, random resource selection ⁇ ;
  • the full set of the second resource selection mechanism M all,2 may be ⁇ partial sensing, random resource selection based on sensing ⁇ ; for another example, the full set of the second resource selection mechanism M all,2 may be ⁇ partial sensing Sensing, random resource selection not based on sensing ⁇ .
  • the "information related to SL resource allocation” may include a resource selection mechanism priority order (for example, denoted as in is the "resource selection mechanism priority order"
  • the number of resource selection mechanisms included in , the priority order may be the order of decreasing priority from left to right, or the order of increasing priority from left to right).
  • the resource selection mechanism priority order Can be one of the following:
  • Random resource selection based on sensing random resource selection not based on sensing, full sensing, partial sensing.
  • Random resource selection not based on sensing random resource selection based on sensing, full sensing, partial sensing.
  • Random resource selection not based on sensing random resource selection based on sensing, partial sensing, full sensing.
  • Random resource selection based on sensing Random resource selection not based on sensing, partial sensing.
  • Random resource selection not based on sensing Random resource selection not based on sensing, random resource selection based on sensing, partial sensing.
  • the "resource selection mechanism priority order" It may be related to the SL state that the UE is in.
  • the "information related to SL resource allocation” may include the priority order of the resource selection mechanism corresponding to different SL states; for example, if the UE is in the first SL state, the "resource selection mechanism priority” level order" equal to the priority order of the first resource selection mechanism (for example, denoted as in is the "first resource selection mechanism priority order" The number of resource selection mechanisms included in .
  • the "resource selection mechanism priority order” equal to the priority order of the second resource selection mechanism (for example, denoted as in is the "second resource selection mechanism priority order"
  • the number of resource selection mechanisms included in .
  • the priority order of the first resource selection mechanism and the priority order of the second resource selection mechanism Can be the same or different.
  • the priority order of the first resource selection mechanism It can be "full sensing, partial sensing, random resource selection”; for another example, the priority order of the second resource selection mechanism Can be "partial sensing, random resource selection”.
  • the "resource selection mechanism priority order" can be directly embodied in a set of resource selection mechanisms (eg, the set M i , where Another example, the set Mmin ; another example, the set Mmin,1 ; another example, the set Mmin,2 ; another example, the set Mconfig,i , where Another example, the set M all ; another example, the set M all,1 ; another example, the set M all,2 ; another example, the set M cap ; another example, the set M cap,1
  • the resource selection mechanism set is an ordered set, and accordingly, the priority order corresponds to the order in which the elements in the set appear (for example, from the left order of decreasing priority to the right, or increasing order of priority from left to right).
  • the "information related to SL resource allocation” may include an "SL energy saving” indication. For example, whether “SL energy saving” has been enabled is indicated through the high-layer protocol parameter sl-powerSavingConfig.
  • the resource pool set U mode2 is equal to the set U mode2,legacy , and correspondingly, the set U mode2,new is an empty set.
  • the parameter sl-resourceSelectionConfig does not exist for all resource pools in the resource pool set U mode2 .
  • the resource selection mechanism full set M all is equal to ⁇ full sensing ⁇ .
  • the resource selection mechanism full set M all is equal to ⁇ full sensing, random resource selection ⁇ .
  • the resource selection mechanism full set M all is equal to ⁇ full sensing, random resource selection based on sensing ⁇ .
  • the resource selection mechanism full set M all is equal to ⁇ full sensing, random resource selection not based on sensing ⁇ .
  • the resource selection mechanism full set M all is equal to ⁇ full sensing, random resource selection based on sensing, random resource selection not based on sensing ⁇ .
  • the minimum resource selection mechanism set Mmin is equal to ⁇ full sensing ⁇ .
  • the minimum resource selection mechanism set Mmin is equal to ⁇ full sensing, partial sensing ⁇ .
  • the minimum resource selection mechanism set Mmin is equal to ⁇ full sensing, random resource selection ⁇ .
  • the minimum resource selection mechanism set Mmin is equal to ⁇ full sensing, random resource selection based on sensing ⁇ .
  • the minimum resource selection mechanism set Mmin is equal to ⁇ full sensing, random resource selection not based on sensing ⁇ .
  • At least one resource pool in the resource pool set U mode2 is configured with resources for transmitting HARQ feedback.
  • At least one logical channel in the UE is configured to enable HARQ feedback
  • the resource selection mechanism set corresponding to one or more resource pools in the resource pool set U mode2 includes resource selection mechanism m
  • at least one of the one or more resource pools is configured with resources for transmitting HARQ feedback.
  • the resource selection mechanism m may be a predefined or configured or preconfigured resource selection mechanism.
  • the resource selection mechanism m may be one of a predefined or configured or pre-configured set of resource selection mechanisms.
  • the resource selection mechanism m may be any resource selection mechanism.
  • a resource selection mechanism is determined (eg, denoted as m current, 1 ).
  • a resource selection mechanism is separately determined for each logical channel. For example, when there is SL data that needs to be transmitted in a certain logical channel, and/or when an SL-CSI report is triggered, and/or when other conditions are satisfied, a corresponding resource selection mechanism is determined. At this time, the resource selection mechanism m current, 1 corresponds to the current logical channel.
  • a common resource selection mechanism is determined for all logical channels.
  • the resource selection mechanism m current,1 is a resource selection mechanism determined (or selected) from a candidate "resource selection mechanism set" (for example, denoted as M cand,1 ). in,
  • the set M cand,1 is a set of all resource selection mechanisms that satisfy the determination condition of the first resource selection mechanism.
  • the set M cand,1 is a set of all resource selection mechanisms in the resource selection mechanism complete set M all that satisfy the determination condition of the first resource selection mechanism.
  • the set M cand,1 may be related to whether the current logical channel is configured to enable HARQ feedback. For example, if the current logical channel configuration is to enable HARQ feedback, the set M cand,1 is a set of all resource selection mechanisms that satisfy the determination condition of the second resource selection mechanism. For another example, if the current logical channel configuration is to disable HARQ feedback, the set M cand,1 is the set of all resource selection mechanisms that satisfy the third resource selection mechanism determination condition.
  • the set M cand,1 may be related to the SL state in which the UE is located. For example, if the UE is in the first SL state, the set M cand,1 is a set of all resource selection mechanisms that satisfy the fourth resource selection mechanism determination condition. For another example, if the UE is in the second SL state, the set M cand,1 is a set of all resource selection mechanisms that satisfy the determination condition of the fifth resource selection mechanism.
  • the set M cand,1 may be related to whether the current logical channel is configured to enable HARQ feedback and the SL state the UE is in. For example, if the current logical channel configuration is to enable HARQ feedback and the UE is in the first SL state, the set M cand,1 is the set of all resource selection mechanisms that satisfy the sixth resource selection mechanism determination condition. For another example, if the current logical channel configuration is to disable HARQ feedback and the UE is in the first SL state, the set M cand,1 is the set of all resource selection mechanisms that satisfy the seventh resource selection mechanism determination condition .
  • the set M cand,1 is the set of all resource selection mechanisms that satisfy the eighth resource selection mechanism determination condition.
  • the set M cand,1 is the set of all resource selection mechanisms that satisfy the determination condition of the ninth resource selection mechanism .
  • Any one of the “Conditions for determining the resource selection mechanism” and the “Conditions for determining the ninth resource selection mechanism” may include one or more of the following (in any combination of “and” or “or” where applicable ):
  • the UE supports the resource selection mechanism m.
  • the resource selection mechanism m is in the resource selection mechanism complete set M all .
  • the resource selection mechanism m is in the first resource selection mechanism complete set M all,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism m is in the second resource selection mechanism corpus M all,2 . (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism m is in the minimum resource selection mechanism set Mmin .
  • the resource selection mechanism m is in the first minimum resource selection mechanism set Mmin,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism m is in the second minimum resource selection mechanism set Mmin,2 . (eg this condition applies when the UE is in the second SL state)
  • the resource pool set U mode2 has at least Each resource pool satisfies the first resource pool configuration condition.
  • the resource pool set U mode2 has at most Each resource pool satisfies the first resource pool configuration condition.
  • the "first resource pool configuration condition" may include one or more of the following (in any combination of “and” or “or” if applicable):
  • the resource pool and Each is configured with resources for transmitting HARQ feedback. (eg this condition applies when the current logical channel is configured to enable HARQ feedback)
  • the set M cand,1 is the minimum resource selection mechanism set M min , the set M cap , the set gather and collection and the intersection of part or all of the resource selection mechanism complete set M all .
  • the resource selection mechanism mcurrent, 1 is any resource selection mechanism selected (eg, randomly selected) from the candidate "resource selection mechanism set" M cand,1 .
  • the resource selection mechanism m current,1 is any resource selection mechanism supported by the UE selected (eg, randomly selected) from the candidate "resource selection mechanism set" M cand,1 .
  • the resource selection mechanism m current,1 is any one selected (eg, randomly selected) from the candidate "resource selection mechanism set" M cand,1 Resource selection mechanism.
  • the resource selection mechanism m current,1 is selected (eg, randomly selected) from the candidate "resource selection mechanism set" M cand,1 . Describe any resource selection mechanism supported by the UE.
  • the resource selection mechanism m current,1 is any one selected (eg, randomly selected) from the candidate "resource selection mechanism set" M cand,1 Resource selection mechanism.
  • the resource selection mechanism m current,1 is selected (eg, randomly selected) from the candidate "resource selection mechanism set" M cand,1 , the Describe any resource selection mechanism supported by the UE.
  • the resource selection mechanism m current, 1 is based on the "resource selection mechanism priority order"
  • a resource selection mechanism determined from the candidate "resource selection mechanism set” M cand,1 eg, the resource selection mechanism m current,1 is based on the "resource selection mechanism priority order”
  • the resource selection mechanism m current, 1 is based on the "priority order of the first resource selection mechanism”
  • a resource selection mechanism determined from the candidate "resource selection mechanism set” M cand, 1 eg, the resource selection mechanism m current, 1 is based on the "first resource selection mechanism priority order”
  • the resource selection mechanism m current, 1 is based on the "second resource selection mechanism priority order"
  • a resource selection mechanism determined from the candidate "resource selection mechanism set” M cand, 1 eg, the resource selection mechanism m current, 1 is based on the "second resource selection mechanism priority order”
  • the resource selection mechanism m current,1 is a resource determined from the candidate "resource selection mechanism set” M cand,1 according to the priority order of the resource selection mechanism corresponding to the resource selection mechanism complete set M all .
  • the selection mechanism (for example, the resource selection mechanism m current,1 is the highest among the candidate "resource selection mechanism set” M cand,1 determined according to the priority order of the resource selection mechanism corresponding to the resource selection mechanism full set M all priority resource selection mechanism).
  • the resource selection mechanism m current,1 is based on the resource selection mechanism priority order corresponding to the first resource selection mechanism full set M all,1 from the candidate A resource selection mechanism determined in the "resource selection mechanism set" M cand, 1 (for example, the resource selection mechanism m current, 1 is the resource selection mechanism priority corresponding to the first resource selection mechanism set M all, 1 The highest priority resource selection mechanism in the candidate "resource selection mechanism set" M cand,1 ) determined in order.
  • the resource selection mechanism m current,1 is based on the resource selection mechanism priority order corresponding to the second resource selection mechanism full set M all,2 from the candidate A resource selection mechanism determined in the "resource selection mechanism set" M cand, 1 (for example, the resource selection mechanism m current, 1 is the resource selection mechanism priority corresponding to the second resource selection mechanism set M all, 2 The highest priority resource selection mechanism in the candidate "resource selection mechanism set" M cand,1 ) determined in order.
  • the UE is in the first SL state, according to the "priority order of the first resource selection mechanism" Determine (or adjust) the priority order of the resource selection mechanisms in the candidate "resource selection mechanism set” M cand,1 .
  • the UE is in the second SL state, according to the "second resource selection mechanism priority order" Determine (or adjust) the priority order of the resource selection mechanisms in the candidate "resource selection mechanism set" M cand,1 .
  • the priority order of the resource selection mechanisms in the candidate "resource selection mechanism set" M cand,1 is determined (or adjusted) according to the resource selection mechanism priority order corresponding to the resource selection mechanism set M all .
  • the candidate "resource selection mechanism set” is determined (or adjusted) according to the priority order of the resource selection mechanisms corresponding to the first resource selection mechanism set M all,1 .
  • the priority order of the resource selection mechanism in M cand,1 is determined (or adjusted) according to the priority order of the resource selection mechanism in M cand,1 .
  • the candidate "resource selection mechanism set” is determined (or adjusted) according to the priority order of the resource selection mechanisms corresponding to the second resource selection mechanism set M all, 2 The priority order of the resource selection mechanism in M cand,1 .
  • the resource selection mechanism m current,1 is a resource selection mechanism determined according to the priority order of the resource selection mechanisms in the candidate "resource selection mechanism set" M cand,1 (for example, the resource selection mechanism The mechanism m current,1 is the highest priority resource selection mechanism in the candidate "resource selection mechanism set” M cand,1 ).
  • the resource selection mechanism m current,1 is determined to be a predefined or configured or pre-configured resource selection mechanism (for example, a for m fallback, 1 ).
  • m fallback, 1 is "full sensing”; another example, m fallback, 1 is “partial sensing”; another example, m fallback, 1 is "random resource selection”; another example, m fallback, 1 is " Sensing-based random resource selection”; as another example, m fallback, 1 is “non-sensing-based random resource selection”.
  • m fallback, 1 is related to the SL state in which the UE is located.
  • m fallback,1 is "full sensing”; for another example, if the UE is in the first SL state, m fallback,1 is “partial sensing”; and For example, if the UE is in the first SL state, m fallback,1 is "random resource selection”; in another example, if the UE is in the first SL state, m fallback,1 is "sensing-based random resource selection” In another example, if the UE is in the first SL state, m fallback, 1 is "random resource selection not based on sensing"; in another example, if the UE is in the second SL state, then m fallback, 1 is "full sensing”; in another example, if the UE is in the second SL state, m fallback, 1 is “partial sensing”; in another example, if the UE is in the second SL state, m fallback, 1 is "random resource
  • the resource selection mechanism m current,1 is determined to be any resource selection mechanism supported by the UE.
  • the resource selection mechanism m current,1 is determined to be supported by the UE , according to the "First Resource Selection Mechanism Priority Order" Determines the highest priority resource selection mechanism.
  • the resource selection mechanism m current,1 is determined to be supported by the UE , as described in the "Second Resource Selection Mechanism Priority Order" Determines the highest priority resource selection mechanism.
  • the UE does not perform SL resource allocation mode 2.
  • the manner of determining the resource selection mechanism mcurrent, 1 (eg, when determining the resource selection mechanism mcurrent, 1 , the manner of determining the candidate "resource selection mechanism set” M cand,1 , and The manner in which a resource selection mechanism is selected from the candidate "resource selection mechanism set” M cand,1 , etc.) is related to the configuration manner of the resource pool set U mode2 .
  • the resource selection mechanism m current, 1 is determined in one way; if the resource pool set U mode2 is configured by the parameter s1- TxPoolExceptional -r16 configuration, the resource selection mechanism m current,1 is determined in another way.
  • the resource selection mechanism m current,1 is determined to be "full sensing".
  • the resource selection mechanism m current,1 is determined as "full sensing":
  • the UE supports "full sensing”.
  • the resource pool set U mode2 has at least resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "full sensing".
  • the resource pool set U mode2 has resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "full sensing".
  • the resource pool set U mode2 has at most resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "full sensing".
  • the UE is in the first SL state.
  • the resource selection mechanism mcurrent,1 is determined as "partial sensing".
  • the resource selection mechanism m current,1 is determined as "partial sensing":
  • the UE supports "partial sensing".
  • the resource pool set U mode2 has at least resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "partial sensing".
  • the resource pool set U mode2 has resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "partial sensing".
  • the resource pool set U mode2 has at most resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "partial sensing".
  • the UE is in the first SL state.
  • the resource selection mechanism m current,1 is determined as "random resource selection”.
  • the resource selection mechanism m current,1 is determined as "random resource selection":
  • the UE supports "random resource selection”.
  • the resource pool set U mode2 has at least resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "random resource selection".
  • the resource pool set U mode2 has resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "random resource selection".
  • the resource pool set U mode2 has at most resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "random resource selection".
  • the UE is in the first SL state.
  • the resource selection mechanism mcurrent,1 is determined as "sensing-based random resource selection”.
  • the resource selection mechanism m current,1 is determined as "sensing-based random resource selection":
  • the UE supports "sensing-based random resource selection”.
  • the resource pool set U mode2 has at least resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "sensing-based random resource selection".
  • the resource pool set U mode2 has resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "sensing-based random resource selection".
  • the resource pool set U mode2 has at most resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "sensing-based random resource selection".
  • the UE is in the first SL state.
  • the resource selection mechanism mcurrent,1 is determined as "random resource selection not based on sensing".
  • the resource selection mechanism m current,1 is determined as "random resource selection not based on sensing":
  • the UE supports "Random resource selection not based on sensing”.
  • the resource pool set U mode2 has at least resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "random resource selection not based on sensing".
  • the resource pool set U mode2 has resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "random resource selection not based on sensing".
  • the resource pool set U mode2 has at most resource pools (e.g. ) corresponding set of resource selection mechanisms (for example, ) each contains "random resource selection not based on sensing".
  • the UE is in the first SL state.
  • a resource pool is determined (for example, denoted as u current, 1 ).
  • a resource pool is separately determined for each logical channel. For example, when there is SL data that needs to be transmitted in a certain logical channel, and/or when an SL-CSI report is triggered, and/or when other conditions are satisfied, a corresponding resource pool is determined. At this time, the resource pool u current, 1 corresponds to the current logical channel.
  • a common resource pool u current,1 is determined for all logical channels.
  • the resource pool u current,1 is a resource pool determined (or selected) from a candidate "resource pool set" (for example, denoted as U cand,1 ). in,
  • the candidate "resource pool set" U cand,1 is a set of all resource pools that satisfy the first resource pool determination condition.
  • the candidate "resource pool set" U cand,1 is the resource pool set U mode2 (or the resource pool set U mode2, legacy , or the resource pool set U mode2, new ) that satisfies the The first resource pool determines the set of all resource pools for the condition.
  • the candidate "resource pool set” U cand,1 may be related to whether the current logical channel is configured to enable HARQ feedback. For example, if the current logical channel configuration is to enable HARQ feedback, the candidate "resource pool set” U cand,1 is the set of all resource pools that satisfy the second resource pool determination condition. For another example, if the current logical channel configuration is to disable HARQ feedback, the candidate "resource pool set” U cand,1 is the set of all resource pools that satisfy the third resource pool determination condition.
  • the candidate "resource pool set” U cand,1 may be related to the SL state in which the UE is located. For example, if the UE is in the first SL state, the candidate "resource pool set” U cand,1 is the set of all resource pools that satisfy the fourth resource pool determination condition. For another example, if the UE is in the second SL state, the candidate "resource pool set” U cand,1 is the set of all resource pools that satisfy the fifth resource pool determination condition.
  • the candidate "resource pool set" U cand,1 may be related to whether the current logical channel is configured to enable HARQ feedback and the SL state the UE is in. For example, if the current logical channel configuration is to enable HARQ feedback, and the UE is in the first SL state, the candidate "resource pool set” U cand,1 is all resource pools that satisfy the sixth resource pool determination condition gather. For another example, if the current logical channel is configured to disable HARQ feedback and the UE is in the first SL state, the candidate "resource pool set" U cand, 1 is all resources that satisfy the seventh resource pool determination condition Collection of pools.
  • the candidate "resource pool set" U cand, 1 is all resource pools that satisfy the eighth resource pool determination condition collection.
  • the candidate "resource pool set" U cand, 1 is all resources that satisfy the determination condition of the ninth resource pool Collection of pools.
  • the "determination condition of the first resource pool”, the “determination condition of the second resource pool”, the “determination condition of the third resource pool”, the “determination condition of the fourth resource pool”, the Determination conditions," the “fifth resource pool determination conditions,” the “sixth resource pool determination conditions,” the “seventh resource pool determination conditions,” the “eighth resource pool determination conditions,” and the Any of the “Ninth Resource Pool Determination Conditions” may include one or more of the following (in any combination of "and” or “or” where applicable):
  • the resource pool u is in the resource pool set U mode2 .
  • the resource pool u is in the resource pool set U mode2, legacy .
  • the resource pool u is in the resource pool set U mode2, new .
  • the resource selection mechanism set M corresponding to the resource pool u is not an empty set.
  • the resource selection mechanism set M corresponding to the resource pool u includes the resource selection mechanism m current,1 .
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism supported by the UE.
  • the resource selection mechanism set M corresponding to the resource pool u includes all resource selection mechanisms supported by the UE.
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism in the set M cap .
  • the resource selection mechanism set M corresponding to the resource pool u includes all the resource selection mechanisms in the set M cap .
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism in the set M cap,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all the resource selection mechanisms in the set M cap,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism in the set M cap,2 . (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all the resource selection mechanisms in the set M cap,2 . (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism in the resource selection mechanism complete set M all .
  • the resource selection mechanism set M corresponding to the resource pool u includes all resource selection mechanisms in the resource selection mechanism complete set M all .
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism in the first resource selection mechanism complete set M all,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all resource selection mechanisms in the first resource selection mechanism complete set M all,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism in the second resource selection mechanism complete set M all, 2 . (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all resource selection mechanisms in the second resource selection mechanism complete set M all,2 . (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism in the minimum resource selection mechanism set Mmin .
  • the resource selection mechanism set M corresponding to the resource pool u includes all resource selection mechanisms in the minimum resource selection mechanism set Mmin .
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism in the first minimum resource selection mechanism set Mmin,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all the resource selection mechanisms in the first minimum resource selection mechanism set Mmin,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism in the second minimum resource selection mechanism set Mmin,2 . (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all the resource selection mechanisms in the second minimum resource selection mechanism set Mmin,2 . (eg this condition applies when the UE is in the second SL state)
  • the resource pool u is configured with resources for transmitting HARQ feedback. (eg this condition applies when the current logical channel is configured to enable HARQ feedback)
  • the resource pool u current,1 is any resource pool selected (eg, randomly selected) from the candidate "resource pool set" U cand,1 .
  • the resource pool u current,1 is obtained from the candidate "resource pool set" U cand,1 (for example, the candidate "resources” corresponding to the first SL state Any resource pool selected (eg, randomly selected) in the pool set "U cand, 1 ).
  • the resource pool u current,1 is obtained from the candidate "resource pool set" U cand,1 (for example, the candidate "resources” corresponding to the second SL state Any resource pool selected (eg, randomly selected) in the pool set "U cand, 1 ).
  • the resource pool u current,1 is selected (eg, randomly selected) from the candidate "resource pool set" U cand,1 , configured Any resource pool of resources used for transmitting HARQ feedback.
  • the resource pool u current,1 is any selected (eg, randomly selected) from the candidate "resource pool set" U cand,1 a resource pool.
  • the resource pool u current,1 is obtained from the candidate "resource pool set" U cand,1 (for example, when HARQ feedback is configured to be enabled) Any resource pool selected (for example, randomly selected) in the corresponding candidate "resource pool set” U cand,1 ).
  • the resource pool u current,1 is obtained from the candidate "resource pool set" U cand,1 (for example, HARQ feedback is configured to disable HARQ feedback). Any resource pool selected (for example, randomly selected) from the candidate "resource pool set" U cand,1 ) corresponding to the time.
  • the resource pool u current, 1 is determined as a predefined or configured or pre-configured resource selection mechanism (for example, denoted as u fallback, 1 ).
  • the resource pool u current,1 is determined to be any resource pool in the resource pool set U mode2 .
  • the resource pool u current,1 is determined to be any resource pool in the resource pool set U mode2, legacy .
  • the resource pool u current,1 is determined to be any resource pool in the resource pool set U mode2,new .
  • step S107 SL resource allocation mode 2 is performed based on the resource selection mechanism m current,1 and/or the resource pool u current,1 .
  • Embodiment 1 of the present invention when it is configured to transmit in SL communication and there is related data to be transmitted, the step S101 and/or the step S103 and/or the step S105 and the /or the step S107.
  • Embodiment 1 of the present invention when an operation related to SL resource allocation mode 2 needs to be performed (for example, when a transmission resource for one transport block needs to be selected, or when a the transmission resources of one transmission block), execute the step S101 and/or the step S103 and/or the step S105 and/or the step S107.
  • the step S101 and/or the step S103 and/or the step S105 and/or the step S107 are performed by the RRC layer protocol entity of the UE.
  • the step S101 and/or the step S103 and/or the step S105 and the step S107 are performed by the MAC layer protocol entity of the UE.
  • the MAC layer protocol entity of the UE performs the step S101 and/or the step S103 and/or the step S105 and the step S107 respectively for each SL process (or SL HARQ process).
  • the random selection may be to randomly determine (or select) an element in a set in an equal probability manner.
  • the Can be a predefined or configured or preconfigured value such as another example
  • a way to configure a logical channel to enable HARQ feedback may be to configure the value of the corresponding parameter sl-HARQ-FeedbackEnabled-r16 as "enabled”.
  • a way to configure a logical channel to disable HARQ feedback may be to configure the value of the corresponding parameter sl-HARQ-FeedbackEnabled-r16 as "disabled”.
  • the "resource for transmitting HARQ feedback" may be a PSFCH resource.
  • the present invention provides a method, by flexibly setting the rules for determining the resource selection mechanism and the resource pool, so that in the SL resource allocation mode 2, the appropriate resource selection mechanism can be used in the appropriate resource pool according to the appropriate resource selection mechanism.
  • the resource allocation is performed in the SL resource allocation mode 2, which improves the performance of the SL resource allocation mode 2.
  • Embodiment 2 of the present invention The following describes a method executed by a user equipment according to Embodiment 2 of the present invention with reference to FIG. 2 .
  • FIG. 2 is a flowchart illustrating a method performed by a user equipment according to Embodiment 2 of the present invention.
  • the steps performed by the user equipment UE include part or all of step S201 , step S203 , step S205 and step S207 .
  • step S201 information related to SL resource allocation is acquired.
  • information related to SL resource allocation is acquired.
  • a resource pool is determined (for example, denoted as u current, 2 ).
  • a resource pool is separately determined for each logical channel. For example, when there is SL data that needs to be transmitted in a certain logical channel, and/or when an SL-CSI report is triggered, and/or when other conditions are satisfied, a corresponding resource pool is determined. At this time, the resource pool u current, 2 corresponds to the current logical channel.
  • a common resource pool u current, 2 is determined for all logical channels.
  • the resource pool u current, 2 is a resource pool determined (or selected) from a candidate "resource pool set" (for example, denoted as U cand, 2 ). in,
  • the candidate "resource pool set" U cand,2 is a set of all resource pools that satisfy the tenth resource pool determination condition.
  • the candidate "resource pool set" U cand,2 is the resource pool set U mode2 (or the resource pool set U mode2, legacy , or the resource pool set U mode2, new ) that satisfies the The tenth resource pool determines the set of all resource pools for the condition.
  • the candidate "resource pool set” U cand,2 may be related to whether the current logical channel is configured to enable HARQ feedback. For example, if the current logical channel configuration is to enable HARQ feedback, the candidate "resource pool set” U cand,2 is the set of all resource pools that satisfy the eleventh resource pool determination condition. For another example, if the current logical channel configuration is to disable HARQ feedback, the candidate "resource pool set” U cand,2 is the set of all resource pools that satisfy the twelfth resource pool determination condition.
  • the candidate "resource pool set” U cand,2 may be related to the SL state in which the UE is located. For example, if the UE is in the first SL state, the candidate "resource pool set” U cand,2 is the set of all resource pools that satisfy the thirteenth resource pool determination condition. For another example, if the UE is in the second SL state, the candidate "resource pool set” U cand,2 is the set of all resource pools that satisfy the fourteenth resource pool determination condition.
  • the candidate "resource pool set" U cand,2 may be related to whether the current logical channel is configured to enable HARQ feedback and the SL state the UE is in. For example, if the current logical channel configuration is to enable HARQ feedback, and the UE is in the first SL state, the candidate "resource pool set” U cand,2 is all resource pools that satisfy the fifteenth resource pool determination condition collection. For another example, if the current logical channel is configured to disable HARQ feedback, and the UE is in the first SL state, the candidate "resource pool set" U cand, 2 is all the resources that satisfy the sixteenth resource pool determination condition. A collection of resource pools.
  • the candidate "resource pool set" U cand, 2 is all resources that satisfy the seventeenth resource pool determination condition Collection of pools.
  • the candidate "resource pool set" U cand, 2 is all the resources that satisfy the eighteenth resource pool determination condition. A collection of resource pools.
  • Any one of the “Condition for determining the pool” and the “Condition for determining the eighteenth resource pool” may include one or more of the following (in any combination of "and” or "or” where applicable):
  • the resource pool u is in the resource pool set U mode2 .
  • the resource pool u is in the resource pool set U mode2, legacy .
  • the resource pool u is in the resource pool set U mode2, new .
  • the resource selection mechanism set M corresponding to the resource pool u is not an empty set.
  • the resource selection mechanism set M corresponding to the resource pool u includes at least the resources supported by the UE.
  • the resource selection mechanism set M corresponding to the resource pool u includes at least the resources in the set M cap .
  • the resource selection mechanism set M corresponding to the resource pool u contains at least the set M cap, 1 of the A resource selection mechanism. (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u at least includes the set M cap, 2 A resource selection mechanism. (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism set M corresponding to the resource pool u contains at least the resource selection mechanism set M all .
  • the resource selection mechanism set M corresponding to the resource pool u contains at least the first resource selection mechanism complete set M all,1 .
  • a resource selection mechanism. (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes at least the second resource selection mechanism complete set M all, 2 .
  • a resource selection mechanism. (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes at least one resource selection mechanism in the minimum resource selection mechanism set Mmin .
  • the resource selection mechanism set M corresponding to the resource pool u at least includes the first minimum resource selection mechanism set M min,1 A resource selection mechanism. (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u at least includes the second minimum resource selection mechanism set M min, 2 A resource selection mechanism. (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all resource selection mechanisms supported by the UE.
  • the resource selection mechanism set M corresponding to the resource pool u includes all the resource selection mechanisms in the set M cap .
  • the resource selection mechanism set M corresponding to the resource pool u includes all the resource selection mechanisms in the set M cap,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all the resource selection mechanisms in the set M cap,2 . (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all resource selection mechanisms in the resource selection mechanism complete set M all .
  • the resource selection mechanism set M corresponding to the resource pool u includes all resource selection mechanisms in the first resource selection mechanism complete set M all,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all resource selection mechanisms in the second resource selection mechanism complete set M all,2 . (eg this condition applies when the UE is in the second SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all resource selection mechanisms in the minimum resource selection mechanism set Mmin .
  • the resource selection mechanism set M corresponding to the resource pool u includes all the resource selection mechanisms in the first minimum resource selection mechanism set Mmin,1 . (eg this condition applies when the UE is in the first SL state)
  • the resource selection mechanism set M corresponding to the resource pool u includes all the resource selection mechanisms in the second minimum resource selection mechanism set Mmin,2 . (eg this condition applies when the UE is in the second SL state)
  • the resource pool u is configured with resources for transmitting HARQ feedback. (eg this condition applies when the current logical channel is configured to enable HARQ feedback)
  • the resource pool u current, 2 is determined to be a predefined or configured or pre-configured resource pool (for example, denoted as u fallback ). , 2 ).
  • u fallback, 2 is related to the SL state in which the UE is located.
  • u fallback, 2 is related to whether the current logical channel is configured to enable HARQ feedback.
  • the resource pool u current,2 is determined to be any resource pool in the resource pool set U mode2 .
  • the resource pool u current,2 is determined to be any resource pool in the resource pool set U mode2,legacy .
  • the resource pool u current, 2 is determined to be any resource pool in the resource pool set U mode2, new .
  • the resource pool u current,2 is any resource pool selected (eg, randomly selected) from the candidate "resource pool set" U cand,2 .
  • the resource pool u current,2 is obtained from the candidate "resource pool set" U cand,2 (for example, the candidate "resources” corresponding to the first SL state Any resource pool selected (eg, randomly selected) in the pool set "U cand, 2 ).
  • the resource pool u current,2 is obtained from the candidate "resource pool set" U cand,2 (for example, the candidate "resources” corresponding to the second SL state Any resource pool selected (eg, randomly selected) in the pool set "U cand, 2 ).
  • the resource pool u current, 2 may be based on the "resource selection mechanism priority order" Sure.
  • the corresponding resource selection mechanism set in 2 contains The set of all resource pools is The candidate "resource pool set” U cand
  • the corresponding resource selection mechanism set in 2 includes:
  • the set of all resource pools is The candidate "resource pool set” U cand
  • the corresponding resource selection mechanism set in 2 includes:
  • the set of all resource pools is then the resource pool u current, 2 is from the set The first one in (eg, in left-to-right order, or in right-to-left order) is any resource pool selected (eg, randomly selected) in the non-empty set.
  • the resource pool u current, 2 may be based on the "priority order of the first resource selection mechanism" Sure.
  • the corresponding resource selection mechanism set in 2 contains The set of all resource pools is The candidate "resource pool set” U cand
  • the corresponding resource selection mechanism set in 2 includes:
  • the set of all resource pools is The set U cand
  • the corresponding resource selection mechanism set in 2 includes:
  • the set of all resource pools is then the resource pool u current, 2 is from the set The first one in (eg, in left-to-right order, or right-to-left order) is any resource pool selected (eg, randomly selected) in the non-empty set.
  • the resource pool u current, 2 may be based on the "second resource selection mechanism priority order" Sure.
  • the corresponding resource selection mechanism set in 2 contains The set of all resource pools is The candidate "resource pool set” U cand
  • the corresponding resource selection mechanism set in 2 includes:
  • the set of all resource pools is The set U cand
  • the corresponding resource selection mechanism set in 2 includes:
  • the set of all resource pools is then the resource pool u current, 2 is from the set The first one in (eg, in left-to-right order, or right-to-left order) is any resource pool selected (eg, randomly selected) in the non-empty set.
  • the resource pool u current,2 is selected (for example, randomly selected) from the candidate "resource pool set" U cand,2 , configured Any resource pool of resources used for transmitting HARQ feedback.
  • the resource pool u current,2 is any selected (for example, randomly selected) from the candidate "resource pool set" U cand,2 a resource pool.
  • the resource pool u current, 2 may be based on the "first resource selection mechanism priority order" Sure.
  • the corresponding resource selection mechanism set in 2 contains And the set composed of all resource pools configured with resources for transmitting HARQ feedback is The candidate "resource pool set” U cand, the corresponding resource selection mechanism set in 2 includes: And the set composed of all resource pools configured with resources for transmitting HARQ feedback is The candidate "resource pool set” U cand, the corresponding resource selection mechanism set in 2 includes: And the set composed of all resource pools configured with resources for transmitting HARQ feedback is The candidate "resource pool set” U cand, the corresponding resource selection mechanism set in 2 includes: And the set composed of all resource pools configured with resources for transmitting HARQ feedback is then the resource pool u current, 2 is from the set
  • the first one in eg, in left-to-right order, or right-to-left order
  • the resource pool u current, 2 may be based on the "first resource selection mechanism priority order" Sure.
  • the corresponding resource selection mechanism set in 2 contains The set of all resource pools is The candidate "resource pool set” U cand
  • the corresponding resource selection mechanism set in 2 includes:
  • the set of all resource pools is The candidate "resource pool set” U cand
  • the corresponding resource selection mechanism set in 2 includes:
  • the set of all resource pools is then the resource pool u current, 2 is from the set
  • the first one in eg, in left-to-right order, or right-to-left order
  • the resource pool u current, 2 may be based on the "second resource selection mechanism priority order" Sure.
  • the corresponding resource selection mechanism set in 2 contains And the set composed of all resource pools configured with resources for transmitting HARQ feedback is The candidate "resource pool set” U cand, the corresponding resource selection mechanism set in 2 includes: And the set composed of all resource pools configured with resources for transmitting HARQ feedback is The candidate "resource pool set” U cand, the corresponding resource selection mechanism set in 2 includes: And the set composed of all resource pools configured with resources for transmitting HARQ feedback is The candidate "resource pool set” U cand, the corresponding resource selection mechanism set in 2 includes: And the set composed of all resource pools configured with resources for transmitting HARQ feedback is then the resource pool u current, 2 is from the set
  • the first one in eg, in left-to-right order, or right-to-left order
  • the resource pool u current, 2 may be based on the "second resource selection mechanism priority order" Sure.
  • the corresponding resource selection mechanism set in 2 contains The set of all resource pools is The candidate "resource pool set” U cand
  • the corresponding resource selection mechanism set in 2 includes:
  • the set of all resource pools is The candidate "resource pool set” U cand
  • the corresponding resource selection mechanism set in 2 includes:
  • the set of all resource pools is then the resource pool u current, 2 is from the set
  • the first one in eg, in left-to-right order, or right-to-left order
  • a resource selection mechanism is determined (eg, denoted as m current, 2 ).
  • a resource selection mechanism is separately determined for each logical channel. For example, when there is SL data that needs to be transmitted in a certain logical channel, and/or when an SL-CSI report is triggered, and/or when other conditions are satisfied, a corresponding resource selection mechanism is determined. At this time, the resource selection mechanism m current, 2 corresponds to the current logical channel.
  • a common resource selection mechanism is determined for all logical channels.
  • the resource selection mechanism m current,2 is any resource selection mechanism selected (for example, randomly selected) from the resource selection mechanism set (for example, M current,2 ) corresponding to the resource pool u current,2 .
  • the resource selection mechanism m current, 2 is selected (for example, randomly selected) from a resource selection mechanism set (for example, M current, 2 ) corresponding to the resource pool u current, 2 , and the UE supports Any one of the resource selection mechanisms of .
  • the resource selection mechanism m current,2 is the highest priority (for example, randomly selected) selected (for example, randomly selected) from the resource selection mechanism set (for example, M current,2 ) corresponding to the resource pool u current,2 , according to the "Resource Selection Mechanism Priority Order" Determined highest priority) resource selection mechanism.
  • the resource selection mechanism m current, 2 is selected (for example, randomly selected) from a resource selection mechanism set (for example, M current, 2 ) corresponding to the resource pool u current, 2 , and the UE supports the highest priority (e.g. according to the "Resource Selection Mechanism Priority Order" Determined highest priority) resource selection mechanism.
  • the resource selection mechanism m current, 2 is selected from the resource selection mechanism set (for example, M current, 2 ) corresponding to the resource pool u current, 2 ( e.g. randomly selected) the highest priority (e.g. according to the "first resource selection mechanism priority order" Determined highest priority) resource selection mechanism.
  • the resource selection mechanism m current, 2 is selected from the resource selection mechanism set (for example, M current, 2 ) corresponding to the resource pool u current, 2 ( For example, randomly selected) the highest priority supported by the UE (for example, according to the "first resource selection mechanism priority order" Determined highest priority) resource selection mechanism.
  • the resource selection mechanism m current, 2 is selected from the resource selection mechanism set (eg M current, 2 ) corresponding to the resource pool u current, 2 ( e.g. randomly selected) the highest priority (e.g. according to the "Second Resource Selection Mechanism Priority Order" Determined highest priority) resource selection mechanism.
  • the resource selection mechanism set e.g M current, 2
  • the highest priority e.g. according to the "Second Resource Selection Mechanism Priority Order" Determined highest priority
  • the resource selection mechanism m current, 2 is selected from the resource selection mechanism set (eg M current, 2 ) corresponding to the resource pool u current, 2 ( e.g. randomly selected) the highest priority supported by the UE (e.g. according to the "second resource selection mechanism priority order" Determined highest priority) resource selection mechanism.
  • the resource selection mechanism set e.g M current, 2
  • the highest priority supported by the UE e.g. according to the "second resource selection mechanism priority order" Determined highest priority
  • step S207 SL resource allocation mode 2 is performed based on the resource selection mechanism m current,2 and/or the resource pool u current, 2.
  • Embodiment 2 of the present invention when it is configured to be transmitted in SL communication and there is related data to be transmitted, the step S201 and/or the step S203 and/or the step S205 and the /or the step S207.
  • Embodiment 2 of the present invention when an operation related to SL resource allocation mode 2 needs to be performed (for example, when a transmission resource for one transport block needs to be selected, or, when it is necessary to select a transmission resource for multiple the transmission resources of one transmission block), execute the step S201 and/or the step S203 and/or the step S205 and/or the step S207.
  • the step S201 and/or the step S203 and/or the step S205 and/or the step S207 are performed by the RRC layer protocol entity.
  • the step S201 and/or the step S203 and/or the step S205 and/or the step S207 are performed by the MAC layer protocol entity of the UE.
  • the MAC layer protocol entity of the UE performs the step S201 and/or the step S203 and/or the step S205 and/or the step respectively for each SL process (or SL HARQ process) S207.
  • the random selection may be to randomly determine (or select) an element in a set in an equal probability manner.
  • the Can be a predefined or configured or preconfigured value such as another example
  • a manner of configuring a logical channel to enable HARQ feedback may be to configure the value of the corresponding parameter sl-HARO-FeedbackEnabled-r16 as "enabled”.
  • a way to configure a logical channel to disable HARQ feedback may be to configure the value of the corresponding parameter sl-HARQ-FeedbackEnabled-r16 as "disabled”.
  • the "resources for transmitting HARQ feedback" are PSFCH resources.
  • the present invention provides a method, by flexibly setting the rules for determining the resource pool and the resource selection mechanism, so that in the SL resource allocation mode 2, the appropriate resource selection mechanism can be used in the appropriate resource pool.
  • the resource allocation is performed in the SL resource allocation mode 2, which improves the performance of the SL resource allocation mode 2.
  • FIG. 3 is used to illustrate a user equipment that can execute the method performed by the user equipment described in detail above in the present invention as a modification.
  • FIG. 3 is a block diagram showing a user equipment UE according to the present invention.
  • the user equipment UE30 includes a processor 301 and a memory 302 .
  • the processor 301 may include, for example, a microprocessor, a microcontroller, an embedded processor, or the like.
  • the memory 302 may include, for example, volatile memory (eg, random access memory RAM), a hard disk drive (HDD), non-volatile memory (eg, flash memory), or other memory, or the like.
  • the memory 302 has program instructions stored thereon. When the instruction is executed by the processor 301, the above method described in detail in the present invention and executed by the user equipment can be executed.
  • the method and related apparatus of the present invention have been described above with reference to the preferred embodiments. Those skilled in the art can understand that the methods shown above are only exemplary, and the various embodiments described above can be combined with each other under the condition that no contradiction occurs.
  • the method of the present invention is not limited to the steps and sequences shown above.
  • the network node and user equipment shown above may include more modules, for example, may also include modules that can be developed or developed in the future and can be used for base stations, AMFs, UPFs, MMEs, S-GWs or UEs, and so on.
  • the various identifiers shown above are only exemplary and not restrictive, and the present invention is not limited to the specific information elements exemplified by these identifiers.
  • the above-described embodiments of the present invention may be implemented by software, hardware, or a combination of both.
  • the various components inside the base station and the user equipment in the above embodiments may be implemented by various devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processing Controllers, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (CPLDs), etc.
  • DSP digital signal processing
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • CPLDs Programmable Logic Devices
  • a “base station” may refer to a mobile communication data and/or control switching center with a certain transmit power and a certain coverage area, including functions such as resource allocation and scheduling, data reception and transmission, and the like.
  • “User equipment” may refer to a user mobile terminal, for example, including a mobile phone, a notebook, and other terminal equipment that can wirelessly communicate with a base station or a micro base station.
  • embodiments of the invention disclosed herein may be implemented on a computer program product.
  • the computer program product is a product having a computer-readable medium on which computer program logic is encoded that, when executed on a computing device, provides relevant operations to achieve The above technical solutions of the present invention.
  • computer program logic When executed on at least one processor of a computing system, computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present invention.
  • Such arrangements of the present invention are typically provided as software, code and/or other data structures arranged or encoded on a computer readable medium such as an optical medium (eg CD-ROM), floppy or hard disk, or such as one or more Firmware or other medium of microcode on a ROM or RAM or PROM chip, or a downloadable software image in one or more modules, a shared database, etc.
  • Software or firmware or such a configuration may be installed on a computing device, so that one or more processors in the computing device execute the technical solutions described in the embodiments of the present invention.
  • each functional module or each feature of the base station device and the terminal device used in each of the above embodiments may be implemented or executed by a circuit, which is usually one or more integrated circuits.
  • Circuits designed to perform the various functions described in this specification may include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs) or general purpose integrated circuits, field programmable gate arrays (FPGAs) or other Program logic devices, discrete gate or transistor logic, or discrete hardware components, or any combination of the above.
  • a general-purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine.
  • the general-purpose processor or each circuit described above may be configured by digital circuits, or may be configured by logic circuits.
  • the present invention can also use the integrated circuit obtained by using the advanced technology.

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Abstract

本发明提出了一种由用户设备执行的方法以及用户设备，由用户设备执行的方法的特征在于，包括：获取与SL资源分配有关的信息，其中包含一个资源池集合U mode2。以及，确定一个资源选择机制m current，1，其中所述资源选择机制m current，1是所述UE支持的、在所述资源池集合U mode2中的至少一个资源池中配置了的一个或多个资源选择机制中的最高优先级的资源选择机制。以及，确定一个资源池u current，1，其中所述资源池u current，1是在所述资源池集合U mode2中配置了所述资源选择机制m current，1的任意一个资源池。以及，基于所述资源选择机制m current，1和所述资源池u current，1执行SL资源分配模式2。

Description

由用户设备执行的方法以及用户设备 技术领域
本发明涉及一种由用户设备执行的方法以及用户设备。
背景技术
在NR SL(sidelink)通信中(例如，当配置为SL资源分配模式2时)，不同的UE可以支持不同的资源选择机制集合，例如，有的UE只支持“全感测”和“随机资源选择”，有的UE可以额外地支持“部分感测”。另一方面，系统中配置的不同传输资源池可以使能不同的资源选择机制集合，例如，有的传输资源池中使能了{全感测}，有的传输资源池中使能了{全感测，部分感测，随机资源选择}。UE在执行SL资源分配(例如，SL资源分配模式2)时，需要解决按什么顺序以及如何确定所使用的资源选择机制和资源池的问题。
在先技术文献
非专利文献
非专利文献1：RP-152293，New WI proposal：Support for V2V services based on LTE sidelink
非专利文献2：RP-170798，New WID on 3GPP V2X Phase 2
非专利文献3：RP-170855，New WID on New Radio Access Technology
非专利文献4：RP-190766，New WID on 5G V2X with NR sidelink
非专利文献5：RP-201385，WID revision：NR sidelink enhancement
发明内容
为了解决上述问题中的至少一部分，本发明提供了一种由用户设备执行的方法以及用户设备，通过灵活设置确定资源选择机制和资源池的规则，使得在SL资源分配模式2中可以按照合适的资源选择机制在合适的资源池中进行资源分配，提高了SL资源分配模式2的性能。
根据本发明，提出了一种由用户设备执行的方法，其特征在于包括： 获取与SL资源分配有关的信息，其中包含一个资源池集合U mode2。以及，确定一个资源选择机制m current，1，其中所述资源选择机制m current，1是所述UE支持的、在所述资源池集合U mode2中的至少一个资源池中配置了的一个或多个资源选择机制中的最高优先级的资源选择机制。以及，确定一个资源池u current，1，其中所述资源池u current，1是在所述资源池集合U mode2中配置了所述资源选择机制m current，1的任意一个资源池。以及，基于所述资源选择机制m current，1和所述资源池u current，1执行SL资源分配模式2。
优选地，若所述UE处于SL节能状态，则所述资源池集合U mode2中的每一个资源池中配置的资源选择机制可以包括部分感测和随机资源选择中的一项或多项。
优选地，若所述UE处于非SL节能状态，则所述资源池集合U mode2中的每一个资源池中配置的资源选择机制可以包括全感测、部分感测和随机资源选择中的一项或多项。
优选地，若所述UE处于SL节能模式，则所述优先级对应的优先级顺序从最高优先级到最低优先级可以是部分感测，随机资源选择。
优选地，若所述UE处于非SL节能模式，则所述优先级对应的优先级顺序从最高优先级到最低优先级可以是全感测，部分感测，随机资源选择。
优选地，所述资源池集合U mode2中至少有一个资源池对应的资源选择机制集合中包含全感测。
此外，根据本发明，提出了一种由用户设备执行的方法，其特征在于包括：获取与SL资源分配有关的信息，其中包含一个资源池集合U mode2。以及，确定一个资源池u current，2，其中所述资源池u current，2是所述资源池集合U mode2中相应的资源选择机制集合中至少包含所述UE支持的一个资源选择机制的一个或多个资源池中的任意一个资源池。以及，确定一个 资源选择机制m current，2，其中所述资源选择机制m current，2是所述资源池u current，2对应的资源选择机制集合中所述UE支持的、最高优先级的资源选择机制。以及，基于所述资源选择机制m current，2和所述资源池u current，2执行SL资源分配模式2。
此外，根据本发明，提出了一种用户设备，包括：处理器；以及存储器，存储有指令，其中，所述指令在由所述处理器运行时执行上述的方法。
因此，本发明提供了一种方法，通过灵活设置确定资源选择机制和资源池的规则，使得在SL资源分配模式2中可以按照合适的资源选择机制在合适的资源池中进行资源分配，提高了SL资源分配模式2的性能。
附图说明
通过下文结合附图的详细描述，本发明的上述和其它特征将会变得更加明显，其中：
图1是示出了根据本发明的实施例一的由用户设备执行的方法的流程图。
图2是示出了根据本发明的实施例二的由用户设备执行的方法的流程图。
图3示出了本发明所涉及的用户设备UE的框图。
具体实施方式
下面结合附图和具体实施方式对本发明进行详细阐述。应当注意，本发明不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本发明没有直接关联的公知技术的详细描述，以防止对本发明的理解造成混淆。
下文以5G移动通信系统及其后续的演进版本作为示例应用环境，具体描述了根据本发明的多个实施方式。然而，需要指出的是，本发明不限于以下实施方式，而是可适用于更多其它的无线通信系统，例如5G之后 的通信系统以及5G之前的4G移动通信系统等。
下面描述本发明涉及的部分术语，如未特别说明，本发明涉及的术语采用此处定义。本发明给出的术语在LTE、LTE-Advanced、LTE-Advanced Pro、NR以及之后的通信系统中可能采用不同的命名方式，但本发明中采用统一的术语，在应用到具体的系统中时，可以替换为相应系统中采用的术语。
3GPP：3rd Generation Partnership Project，第三代合作伙伴计划
AGC：Automatic Gain Control，自动增益控制
AMF：Access and Mobility Management Function，接入和移动性管理功能
AS：Access Stratum，接入层
BWP：Bandwidth Part，带宽片段
CP：Cyclic Prefix，循环前缀
CRB：Common Resource Block，公共资源块
CSI：Channel-state Information，信道状态信息
DL：Downlink，下行
DM-RS：又称为DMRS，Demodulation reference signal，解调参考信号
eNB：E-UTRAN Node B，E-UTRAN节点B
E-UTRAN：Evolved UMTS Terrestrial Radio Access Network，演进的UMTS陆地无线接入网
FR1：Frequency Range 1，频率范围1
FR2：Frequency Range 1，频率范围2
GLONASS：GLObal NAvigation Satellite System，全球导航卫星系统
gNB：NR Node B，NR节点B
GNSS：Global Navigation Satellite System，全球导航卫星系统
GPS：Global Positioning System，全球定位系统
HARQ：Hybrid Automatic Repeat Request，混合自动重复请求
HARQ-ACK：HARQ Acknowledgement，HARQ确认
ID：Identity(或者Identifier)，身份，标识符
IE：Information Element，信息元素
LTE：Long Term Evolution，长期演进
LTE-A：Long Term Evolution-Advanced，长期演进-升级版
MAC：Medium Access Control，介质访问控制
MAC CE：MAC Control Element，MAC控制元素
MIB：Master Information Block，主信息块
MIB-SL：Master Information Block-Sidelink，主信息块-直行
MIB-SL-V2X：Master Information Block-Sidelink-V2X，主信息块-直行-车辆到任何实体
MIB-V2X：Master Information Block-V2X，主信息块-车辆到任何实体
MME：Mobility Management Entity，移动管理实体
NAS：Non-Access-Stratum，非接入层
NDI：New Data Indicator，新数据指示符
NR：“New Radio”，fifth generation radio access technology，第五代无线接入技术
P2V：Pedestrian-to-Vehicle，行人到车辆
P2X：Pedestrian-to-everything，行人到任何实体
PBCH：Physical Broadcast Channel，物理广播信道
PDCCH：Physical Downlink Control Channel，物理下行控制信道
PDCP：Packet Data Convergence Protocol，分组数据汇聚协议
PSBCH：Physical Sidelink Broadcast Channel，物理直行广播信道
PSCCH：Physical Sidelink Control Channel，物理直行控制信道
PSFCH：Physical Sidelink Feedback Channel，物理直行反馈信道
PSSCH：Physical Sidelink Shared Channel，物理直行共享信道
PRB：Physical Resource Block，物理资源块
PSS：Primary Synchronization Signal，主同步信号
PSS-SL：Primary Synchronization Signal for Sidelink，直行主同步信号
PSSS：Primary Sidelink Synchronization Signal，主直行同步信号
QZSS：Quasi-Zenith Satellite System，准天顶卫星系统
RB：Resource Block，资源块
RBG：Resource Block Group，资源块组
RE：Resource Element，资源元素
RLC：Radio Link Control，无线链路控制协议
RRC：Radio Resource Control，无线资源控制
RV：Redundancy Version，冗余版本
S-BWP：Sidelink Bandwidth Part，直行带宽片段
S-MIB：Sidelink Master Information Block，直行主信息块
S-PSS：Sidelink Primary Synchronization Signal，直行主同步信号
S-SSB：Sidelink SS/PBCH block，直行同步信号/物理广播信道块
S-SSS：Sidelink Secondary Synchronization Signal，直行辅同步信号
SCI：Sidelink Control Information，直行控制信息
SCS：Subcarrier Spacing，子载波间隔
SIB：System Information Block，系统信息块
SL：Sidelink，直行
SL BWP：Sidelink Bandwidth Part，直行带宽片段
SL MIB：Sidelink Master Information Block，直行主信息块
SL PSS：Sidelink Primary Synchronization Signal，直行主同步信号
SL SS：Sidelink Synchronisation Signal，直行同步信号
SL SSID：Sidelink Synchronization Signal Identity(或者Sidelink Synchronization Signal Identifier)，直行同步信号标识
SL SSB：Sidelink SS/PBCH block，直行同步信号/物理广播信道块
SL SSS：Sidelink Secondary Synchronization Signal，直行辅同步信号
SL-SCH：Sidelink Shared Channel，直行共享信道
SLSS：Sidelink Synchronisation Signal，直行同步信号
SLSS ID：Sidelink Synchronization Signal Identity(或者Sidelink Synchronization Signal Identifier)，直行同步信号标识
SLSSID：Sidelink Synchronization Signal Identity(或者Sidelink Synchronization Signal Identifier)，直行同步信号标识
SSB：SS/PBCH block，同步信号/物理广播信道块
SSB-SL：SS/PBCH block for Sidelink，直行同步信号/物理广播信道块
SSS：Secondary Synchronization Signal，辅同步信号
SSS-SL：Secondary Synchronization Signal for Sidelink，直行辅同步信号
SSSB：Sidelink SS/PBCH block，直行同步信号/物理广播信道块
SSSS：Secondary Sidelink Synchronization Signal，辅直行同步信号
Sub-channel：子信道
S-GW：Serving Gateway，服务网关
TB：Transport Block，传输块
UE：User Equipment，用户设备
UL：Uplink，上行
UMTS：Universal Mobile Telecommunications System，通用移动通信系统
UPF：User Plane Function，用户面功能
V2I：Vehicle-to-Infrastructure，车辆到基础设施
V2N：Vehicle-to-network，车辆到网络
V2P：Vehicle-to-Pedestrian，车辆到行人
V2V：Vehicle-to-vehicle，车辆到车辆
V2X：Vehicle-to-everything，车辆到任何实体
VRB：Virtual Resource Block，虚拟资源块
在本发明的所有实施例和实施方式中，如未特别说明：
●可选地，在适用的情况下，“发送”和“传输”可以互换。
●可选地，在适用的情况下，“符号”(symbol)可以指OFDM符号(OFDM symbol)。
●可选地，在适用的情况下(例如在某个(些)资源上执行某个(些)操作时)，“在X内”、“在X中”和“在X上”中的任意两个可以互换。其中，X可以是一个或多个载波(例如SL载波)，或者一个或多个BWP(例如SL BWP)，或者一个或多个资源池(resource pool，或者sidelink resource pool)，或者一个或多个链路(例如UL，又如DL，又如SL)，或者一个或 多个信道(例如PSSCH)，或者一个或多个子信道，或者一个或多个RBG，或者一个或多个RB，或者一个或多个“时机”(occasion，例如PDCCH监听时机，又如PSSCH传输时机，又如PSSCH接收时机，又如PSFCH传输时机，又如PSFCH接收时机，等等)，或者一个或多个OFDM符号，或者一个或多个时隙，或者一个或多个子帧，或者一个或多个半帧，或者一个或多个帧，或者一个或多个任意的时域和/或频域和/或码域和/或空域资源，等等。
●可选地，“高层”可以指物理层之上的一个或多个协议层或协议子层。例如MAC层，又如RLC层，又如PDCP层，又如PC5RRC层，又如PC5-S层，又如RRC层，又如V2X层，又如应用层，又如V2X应用层，等等。
●可选地，“预配置”(pre-configure)可以是在高层协议中进行预配置。例如预置(例如按高层协议的规范预置)在UE中特定的存储位置，或者预置(例如按高层协议的规范预置)在UE能存取的特定的存储位置。
●可选地，“配置”可以是在高层协议中通过信令进行配置。例如通过RRC信令为UE配置。
●可选地，“已配置”可以替换为“已预配置”。反之亦然。
●可选地，“已配置”可以替换为“已配置或已预配置”。反之亦然。
●可选地，“已配置某参数”可以替换为“已提供某参数”。反之亦然。
●可选地，“通过某参数指示某信息”可以替换为“通过某参数提供某信息”。反之亦然。
●可选地，“通过某参数提供某信息”可以替换为“通过某参数配置某信息”。反之亦然。
●可选地，“已配置某参数”可以替换为“已通过信令指示某参数”。反之亦然。
●可选地，“未配置”可以替换为“未预配置”。反之亦然。
●可选地，“未配置”可以替换为“未配置且或未预配置”。反之亦然。
●可选地，“未配置”可以替换为“未(预)配置”。反之亦然。
●可选地，在适用的情况下(例如，在不会引起歧义的情况下)，参数X指的可以是“X-r8”，或者“X-r9”，或者“X-r10”，或者“X-r11”，或者“X-r12”，或者“X-r13”，或者“X-r14”，或者“X-r15”，或者“X-r16”，或者“X-r17”，或者“X-r18”，或者“X-r19”，或者“X-r20”，等等。反之亦然。例如，在适用的情况下，“pdsch-HARQ-ACK-CodebookList”可以用于指代参数pdsch-HARQ-ACK-CodebookList-r16。反之亦然。
●可选地，时域(time-domain)资源又可以称为时间(time)资源。
●可选地，频域(frequency-domain)资源又可以称为频率(frequency)资源。
●可选地，资源块可以指虚拟资源块(virtual resource block，VRB)，也可以指物理资源块(physical resource block，PRB)，也可以指公共资源块(common resource block，CRB)，也可以指按其他方式定义的资源块。
●可选地，频域资源的编号可以从0开始。例如，若一个资源池中配置的子信道(subchannel，或者sub-channel)的个数为
Figure PCTCN2021140768-appb-000001
则所述资源池中子信道的集合可以用相应的子信道编号的集合表示为
Figure PCTCN2021140768-appb-000002
又如，一个资源块中子载波的集合可以用相应的子载波编号的集合表示为{0，1，...，11}。
●可选地，时域资源的编号可以从0开始。例如，对于30kHz SCS，一个子帧中时隙的集合可以用相应的时隙编号的集合表示为{0，1}。
●可选地，“SL传输”可以指下面中一个或多个给定的项，或任意一项：
◆PSSCH传输。
◆PSCCH和PSSCH传输。
◆PSCCH或PSSCH传输。
◆PSFCH传输。
◆S-SSB传输。
●可选地，“PSSCH传输”可以替换为“PSCCH和/或PSSCH传输”，或者替换为“PSCCH/PSSCH传输”。
在基于D2D(Device to Device，设备到设备)技术的通信中，设备(也称为用户设备，User Equipment，UE)之间的接口可以称为PC5接口，相应的传输链路在物理层可以称为“直行”或者说“侧行”(sidelink，简称SL)链路，以区别于上行(uplink，简称UL)链路和下行(downlink，简称DL)链路。基于SL链路的通信可以称为SL通信(sidelink communication)。基于LTE技术的SL链路可以称为LTE SL链路。基于NR技术的SL链路可以称为NR SL链路。5G V2X通信可以基于LTE SL，也可以基于NR SL。下文中如未特别说明，“SL”指的是NR SL，“SL通信”指的是NR SL通信，“V2X通信”指的是基于NR SL的V2X通信。
SL链路的物理层可以支持在有覆盖(in-coverage)、无覆盖(out-of-coverage)和部分覆盖(partial-coverage)场景中的一种或多种场景下进行一种或多种模式的传输，例如广播(broadcast)传输，又如组播(groupcast)传输，又如单播(unicast)传输，等等。
对FR1(Frequency Range 1，频率范围1)，SL链路对应的SCS(subcarrier spacing，子载波间隔，记为Δf，单位为kHz)可以是15kHz(正常CP)，或30kHz(正常CP)，或60kHz(正常CP或扩展CP)；对FR2(Frequency Range 2，频率范围2)，SL链路对应的SCS可以是60kHz(正常CP或扩展CP)，或120kHz(正常CP)。每个SCS分别对应一个SCS配置(SCS configuration，记为μ)，例如，Δf＝15kHz对应μ＝0，Δf＝30kHz对应μ＝1，Δf＝60kHz对应μ＝2，Δf＝120kHz对应μ＝3，等等；又如，对任意一个给定的μ，Δf＝2 μ·15kHz。μ可以是SL载波的SCS配置；例如，一个SL载波中的所有SL传输都使用同 一个SCS配置和/或同一个CP。μ可以是SL BWP(Sidelink Bandwidth Part，直行带宽片段，或者称为S-BWP，或者称为SBWP，或者称为SL-BWP，或者称为BWP-SL，或者简称为BWP)的SCS配置；例如，一个SL BWP中的所有SL传输都使用同一个SCS配置和/或同一个CP。μ可以是资源池(resource pool)的SCS配置；例如，一个资源池中的所有SL传输都使用同一个SCS配置和/或同一个CP。
与SL操作有关的信号和信道可以包括：
●SL PSS(Sidelink Primary Synchronization Signal，直行主同步信号)，或者称为S-PSS，或者称为SPSS，或者称为SL-PSS，或者称为PSS-SL，或者称为PSSS(Primary Sidelink Synchronization Signal，主直行同步信号)，等等。
●SL SSS(Sidelink Secondary Synchronization Signal，直行辅同步信号)，或者称为S-SSS，或者称为SSSS(Sidelink Secondary Synchronization Signal)，或者称为SL-SSS，或者称为SSS-SL，或者称为SSSS(Secondary Sidelink Synchronization Signal，辅直行同步信号)，等等。
●PSBCH(Physical Sidelink Broadcast Channel，物理直行广播信道)。
●PSCCH(Physical Sidelink Control Channel，物理直行控制信道)。
●PSSCH(Physical Sidelink Shared Channel，物理直行共享信道)。
●PSFCH(Physical Sidelink Feedback Channel，物理直行反馈信道)。
SL PSS、SL SSS和PSBCH一起可以在时频(time/frequency)资源上组织成块状的形式，例如称为S-SSB(Sidelink Synchronization Signal/PSBCH block，或者SSS/PSBCH block，直行同步信号/物理直行广播信道块)，或者称为SSS/PSBCH块，或者称为SS/PSBCH块，或者称为S-SS/PSBCH块，或者称为SL SSB，或者称为SSSB，或者称为SL-SSB，或者称为SSB-SL。S-SSB的传输带宽(例如，11个资源块)可以位于相应的SL载波内(例如，位于所述SL载波内配置的一个SL BWP内)。SL PSS和/或SL SSS可以携带SL SSID(Sidelink Synchronization Identity，或者Sidelink Synchronization Identifier，直行同步标识，或者Sidelink Synchronization Signal Identity，或者Sidelink Synchronization Signal  Identifier，直行同步信号标识，或者Sidelink Identity，直行标识，或者Physical-layer Sidelink Identity，物理层直行标识，或者称为SL-SSID，或者称为SSID-SL，或者称为SLSSID，或者称为SLSS ID，或者称为S-SSID，等等)，PSBCH可以携带SL MIB(Sidelink Master Information Block，直行主信息块，或者称为SL-MIB，或者称为S-MIB，或者称为MIB-SL，或者称为MasterInformationBlockSidelink)，例如通过参数masterInformationBlockSidelink配置。
在SL链路上，用于传输S-SSB的时域和/或频域资源可以通过高层参数进行配置。例如，在频域上，可以通过参数absoluteFrequencySSB-SL(或者参数sl-AbsoluteFrequencySSB)配置S-SSB在频域上的位置。又如，在时域上，可以通过参数sl-SyncConfigList配置一个或多个同步配置项，其中每一个同步配置项中，可以通过参数numSSBwithinPeriod-SL(或者参数sl-NumSSB-WithinPeriod)配置在长度为16个帧的S-SSB周期内的
Figure PCTCN2021140768-appb-000003
个S-SSB，其中，编号(或者说索引)为
Figure PCTCN2021140768-appb-000004
Figure PCTCN2021140768-appb-000005
的S-SSB所在的时隙(slot)在长度为16帧的周期内的索引可以是
Figure PCTCN2021140768-appb-000006
其中
Figure PCTCN2021140768-appb-000007
可以通过参数timeOffsetSSB-SL(或者参数sl-TimeOffsetSSB)配置，
Figure PCTCN2021140768-appb-000008
可以通过参数timeIntervalSSB-SL(或者参数sl-TimeInterval)配置。
与SL同步有关的同步源(synchronization source，或者称为同步参考，synchronization reference，或者称为同步参考源，synchronization reference source)可以包括GNSS(Global navigation satellite system，全球导航卫星系统)、gNB、eNB和UE(例如NR UE，又如LTE UE，又如NR UE或LTE UE)。一个作为同步源的UE(例如，传输S-SSB的UE)，可以称为SyncRefUE。
GNSS的例子可以包括GPS(Global Positioning System，全球定位系统)、GLONASS(GLObal NAvigation Satellite System，全球导航卫星系 统)、BeiDou(北斗导航卫星系统)、Galileo(伽利略导航卫星系统)、QZSS(Quasi-Zenith Satellite System，准天顶卫星系统)等。
SL载波内可以配置一个或多个(例如一个)SL BWP。对每一个SL BWP，可以通过参数startSLsymbols(或者参数sl-StartSymbol)配置可以用于SL传输的起始符号(例如记所述符号在时隙内的编号为
Figure PCTCN2021140768-appb-000009
)，以及通过参数lengthSLsymbols(或者参数sl-LengthSymbols)配置可以用于SL传输的符号个数(例如记所述符号个数为
Figure PCTCN2021140768-appb-000010
)，其中所述
Figure PCTCN2021140768-appb-000011
个符号可以是连续的符号。
Figure PCTCN2021140768-appb-000012
的取值集合可以记为
Figure PCTCN2021140768-appb-000013
例如
Figure PCTCN2021140768-appb-000014
的取值集合可以记为
Figure PCTCN2021140768-appb-000015
例如
Figure PCTCN2021140768-appb-000016
所述“可以用于SL传输的符号”可以称为“SL符号”。记SL符号的集合(按时间先后顺序)为
Figure PCTCN2021140768-appb-000017
则
Figure PCTCN2021140768-appb-000018
Figure PCTCN2021140768-appb-000019
例如，若
Figure PCTCN2021140768-appb-000020
则SL符号的集合为(7，8，9，10，11，12，13}。
只有满足一定的条件的时隙才可以用于SL传输。例如，所述时隙中至少符号
Figure PCTCN2021140768-appb-000021
符号
Figure PCTCN2021140768-appb-000022
符号
Figure PCTCN2021140768-appb-000023
是上行符号(例如通过SIBl中的servingCellConfigCommon中的tdd-UL-DL-ConfigurationCommon配置的满足所述条件的时隙)。又如，所述时隙必须在一个已配置的资源池的时隙集合中。
一个SL BWP内可以配置一个或多个资源池(或者说SL资源池)，其中，在每一个资源池内，
●在频域，可以通过参数startRB-Subchannel(或者参数sl-StartRB-Subchannel)配置所述资源池在SL BWP内的起始子信道的起始资源块的位置。
●在频域，每个子信道可以由一个或多个资源块组成，具体的资源块个数(称为子信道的大小，例如记为n subChannelsize)可以通过参数subchannelsize(或者参数sl-SubchannelSize)配置。所述n subChannelsize个资源块在频域上可以是连续的。
●在频域，可以通过参数numSubchannel(或者参数sl-NumSubchannel)配置所述资源池占用的子信道的个数(记为
Figure PCTCN2021140768-appb-000024
)。所述
Figure PCTCN2021140768-appb-000025
个子信道在频域上可以是连续的。
●在频域，可以通过参数sl-RB-Number配置所述资源池占用的PRB的个数(记为
Figure PCTCN2021140768-appb-000026
)。可选地，UE可以假定所述
Figure PCTCN2021140768-appb-000027
个PRB中的最后
Figure PCTCN2021140768-appb-000028
mod
Figure PCTCN2021140768-appb-000029
个PRB不会被使用。
●在频域，按频率从小到大的顺序，一个资源池内的各个子信道可以分别编号为
Figure PCTCN2021140768-appb-000030
其中，编号为i的子信道可以称为“子信道i”
Figure PCTCN2021140768-appb-000031
●在时域，可以通过参数timeresourcepool(或者参数sl-TimeResource)配置一个时隙位图，用于指示在一个候选时隙集合中哪个或哪些时隙属于所述资源池。可以看出，在一个资源池内连续的两个时隙在时间上可以不连续(例如，一个帧内的时隙0和时隙6可以是一个资源池中连续的两个时隙)。为方便起见，一个资源池中的时隙集合可以记为
Figure PCTCN2021140768-appb-000032
其中T′ max是所述时隙集合中的时隙的个数。
一个资源池可以配置为“传输资源池”，其中的资源可以用于在SL通信中进行数据传输和/或HARQ-ACK信息的接收等。
一个资源池也可以配置为“接收资源池”，其中的资源可以用于在SL通信中进行数据接收和/或HARQ-ACK信息的传输等。
与SL操作有关的资源(例如时域资源，又如频域资源，又如码域资源，又如空域资源)的分配方式可以包括：
●模式1(Mode 1，或者资源分配模式1，Resource Allocation Mode  1，或者直行资源分配模式1，Sidelink Resource Allocation Mode 1)：基站调度用于SL传输的资源。
●模式2(Mode 2，或者资源分配模式2，Resource Allocation Mode 2，或者直行资源分配模式2，Sidelink Resource Allocation Mode 2)：UE确定用于SL传输的资源(即基站不参与用于SL传输的资源的调度)。例如，执行SL传输操作的UE自主确定用于SL传输的资源。
UE可以通过SCI(Sidelink Control Information，直行控制信息)调度数据的传输。SL操作可以支持“两阶段SCI”(two-stage SCI)，其中第一阶段SCI(1 st-stage SCI)可以包含资源预留和/或资源分配等信息，以便于所有正在监测(monitor)SL链路的UE对于资源预留和/或资源分配情况进行感测(sensing)；第二阶段SCI(2 nd-stage SCI)可以包含其他信息，例如和HARQ反馈相关的信息等。下文中如未特别说明，在单独提到“SCI”时，在适用的情况下，可以指第一阶段SCI，或者第二阶段SCI，或者第一阶段SCI以及第二阶段SCI。
第一阶段SCI的格式可以是SCI格式1-A(或者写成“SCI格式1_A”)。下面是SCI格式1-A中可以包含的信息的一些例子：
●优先级(Priority)。
●频率资源分配(Frequency resource assignment)。
●时间资源分配(Time resource assignment)。
●资源预留周期(Resource reservation period)。
●DMRS模式(DMRS pattern)。
●第二阶段SCI格式(2 nd-stage SCI format)。
第二阶段SCI的格式可以是SCI格式2-A(或者写成“SCI格式2_A”)，或者SCI格式2-B(或者写成“SCI格式2_B”)。下面是SCI格式2-A和/或SCI格式2-B中可以包含的信息的一些例子：
●源层一标识符(Source Layer-1 ID，或者称为Layer-1 Source ID，层一源标识符，或者称为Physical Layer Source ID，物理层源标识符，或者(在上下文清楚的情况下)称为Source ID，源标识符)。
●目标层一标识符(Destination Layer-1 ID，或者称为Layer-1 Destination ID，层一目标标识符，或者称为Physical Layer Destination ID，物理层目标标识符，或者(在上下文清楚的情况下)称为Destination ID，目标标识符)。
●HARQ进程标识(HARQ Process ID)，或者说HARQ进程号(HARQ Process Number)。
●新数据标识(New Data Indicator，NDI)。
●冗余版本(Redundancy Version，RV)。
第一阶段SCI可以携带在PSCCH上。第二阶段SCI可以和要传输的数据一起复用在PSCCH关联的(或者说调度的)PSSCH上。PSCCH及其所关联的PSSCH可以通过一定的方式复用在为SL传输分配的时域和/或频域资源上(例如，PSCCH的起始资源块所在的子信道是其所关联的PSSCH的起始子信道。又如，PSCCH的起始资源块是其所关联的PSSCH的起始子信道的起始资源块)。另外，可以认为第一阶段SCI和/或相应的第二阶段SCI调度了PSSCH(或者说调度了PSSCH的传输，或者说调度了PSSCH中携带的TB的传输)。
对于一个包含PSCCH和/或PSSCH的SL传输，发送方可以称为TX UE，接收方可以称为RX UE。若HARQ反馈已启用，则RX UE可以通过PSFCH反馈与PSCCH和/或PSSCH接收有关的信息(例如称为“HARQ-ACK信息”)。例如，当RX UE在一个资源池中接收一个PSSCH，且相应的SCI中的“HARQ反馈使能/去使能指示符(HARQ feedback enabled/disabled indicator)”字段的值为1时，所述RX UE在所述资源池中通过PSFCH传输提供HARQ-ACK信息。这种HARQ-ACK信息可以称为“在SL上报告的与SL传输有关的HARQ-ACK信息”。在一些配置下，在SL上报告的与SL传输有关的HARQ-ACK信息可以指示肯定应答(ACK，Acknowledgement，或者Positive Acknowledgement)，例如表示可以正确解码相应的PSCCH和/或PSSCH所携带的数据，或者指示否定应答(NACK，或者NAK，Negative Acknowledgement)，例如表示无法正确解码相应的PSCCH和/或PSSCH所携带的数据；在另一些配置下，在SL上报告的与SL传输有关的HARQ-ACK信息可以只指示NACK(例 如在可以正确解码相应的PSCCH和/或PSSCH所携带的数据时，不发送任何HARQ反馈；在无法正确解码相应的PSCCH和/或PSSCH所携带的数据时，发送NACK)。“ACK”和“NACK”可以称为HARQ-ACK值(HARQ-ACK value)。
在时域(time domain)，PSFCH资源可以在一个资源池中周期性地出现，例如相应的周期(例如称为“PSFCH周期”或者“PSFCH资源周期”，例如记为
Figure PCTCN2021140768-appb-000033
例如单位为时隙个数)可以通过参数periodPSFCHresource(或者参数sl-PSFCH-Period)进行配置，例如配置为
Figure PCTCN2021140768-appb-000034
或者
Figure PCTCN2021140768-appb-000035
或者
Figure PCTCN2021140768-appb-000036
或者
Figure PCTCN2021140768-appb-000037
)。其中，
Figure PCTCN2021140768-appb-000038
可以用于指示相应的资源池中没有配置PSFCH资源。例如，若一个资源池未配置PSFCH相关的参数(例如参数sl-PSFCH-Config，或者所述参数sl-PSFCH-Config中的一个或多个参数)，或者所述参数sl-PSFCH-Config中配置的PSFCH周期为0，则表示所述资源池未配置PSFCH资源。又如，若一个资源池已配置所述参数sl-PSFCH-Config且所述参数sl-PSFCH-Config中配置的PSFCH周期的值不是0，则表示所述资源池已配置PSFCH资源。
一个配置了PSFCH资源的时隙可以称为“PSFCH时隙”。在一个PSFCH时隙内，与PSFCH传输有关的符号可以是所述时隙的最后一个或多个SL符号，例如对于PSFCH格式0，可以是最后三个SL符号(例如符号
Figure PCTCN2021140768-appb-000039
符号
Figure PCTCN2021140768-appb-000040
和符号
Figure PCTCN2021140768-appb-000041
Figure PCTCN2021140768-appb-000042
其中，符号
Figure PCTCN2021140768-appb-000043
可以用于AGC，另外，此符号上传输的内容可以复制自符号
Figure PCTCN2021140768-appb-000044
上传输的内容)；符号
Figure PCTCN2021140768-appb-000045
可以用于PSFCH传输；符号
Figure PCTCN2021140768-appb-000046
可以用作间隔(GAP)符号，或者保护(GUARD)符号。一个PSFCH时隙的其他SL符号可以用于发送其他SL信号/信道，如PSCCH、PSSCH等。
在SL资源分配模式2中，可以使用一种或多种方式确定所分配的SL资源。例如，可以使用不同的方式确定“可用资源”(或者“空闲资源”) 的集合，然后从所述“可用资源”(或者“空闲资源”)的集合中选择(例如随机选择)一个或多个SL资源用于SL传输。在本发明的实施例和实施方式中，将确定“可用资源”的集合的方式可以称为“资源选择机制”(resource selection mechanism)，或者“资源选择方法”(resource selection method)，或者“资源选择方案”(resource selection scheme)，或者“资源确定机制”(resource determination mechanism)，或者“资源确定方法”(resource determination method)，或者“资源确定方案”(resource determination scheme)，或者“资源分配机制”(resource allocation mechanism)，或者“资源分配方法”(resource allocation method)，或者“资源分配方案”(resource allocation scheme)，或者为上述名称加上前缀“SL”(例如，“SL资源选择机制”)，等等。或者，将确定所分配的SL资源的所有操作的集合称为“资源选择机制”。或者，将确定所分配的SL资源的部分操作的集合称为“资源选择机制”。
若在SL资源分配模式2中使用某个资源选择机制，则可以称为基于该资源选择机制执行SL资源分配模式2。
SL资源分配模式2所对应的操作可以包括，由高层协议实体(例如MAC层协议实体)在时隙n向物理层协议实体请求根据一个输入参数集合(例如记为P A)确定一个可以从中选择资源的资源子集(例如记为S A)，并由物理层协议实体向高层协议实体(例如MAC层协议实体)报告所述资源子集S A。
所述输入参数集合P A可以包含下面中的一项或多项：
●用于进行资源选择的资源池(例如记为u sel)。例如，所述资源子集S A可以是所述资源池u sel中的一个候选资源集合的一个子集。
●优先级(例如层一优先级，或者说物理层优先级，例如记为prio TX)。
●剩余分组延迟预算(remaining packet delay budget)。
●资源的大小。例如，所述“资源的大小”可以包括每一个资源 所占用的子信道个数(例如连续的子信道个数)，例如记为L subCH。又如，所述“资源的大小”可以包括每一个资源所占用的时隙个数(例如连续的时隙个数)，例如记为L slot。可选地，L subCH和/或L slot可以是预定义或配置或预配置的值，例如L slot＝1(此时可以称所述资源为单时隙资源，single-slot resource)。
●资源预留间隔(resource reservation interval)，例如记为P rsvp_TX。
●一个用于重新评估(re-evaluation)操作的资源集合，例如记为(r 0，r 1，r 2，...)。
●一个用于抢占(pre-emption)操作的资源集合，例如记为(r′ 0，r′ 1，r′ 2，...)。
为确定所述资源子集S A，可以将集合S A初始化为所有的候选资源组成的集合(例如记为S all)，然后从集合S A中去掉不可用的资源，最后得到的集合S A即为所请求的资源子集。
所述“所有的候选资源组成的集合S all”可以是时间间隔[n+T 1，n+T 2]内的、在所述资源池u sel中的、所有对应L subCH个子信道和L slot个时隙的资源的集合，或者该集合的一个子集(例如，只包含可用于传输PSCCH和/或PSSCH的时隙中的资源。例如，若所述资源池u sel中的某个时隙中配置的SL符号集合中，可以用于传输PSCCH和/或PSSCH的SL符号的个数没有对应的PSSCH DMRS模式，则所述时隙无法用于传输PSCCH和/或PSSCH)。其中，T 1和T 2可以是由UE确定的、满足一定条件的两个数值，例如，T 1可以与UE的处理能力有关，T 2可以与剩余分组延迟预算有关。
对于一个正在或将要执行SL资源分配模式2的UE，所述从集合S A中去掉的“不可用的资源”可以包括下面中的一项或多项：
●由于所述UE的传输能力限制而无法在其上进行SL传输的资源。例如，由于所述UE支持的同时进行的传输的个数的限制，导 致当所述UE在其他载波上进行传输时无法在所述集合S A对应的SL载波上进行SL传输。又如，由于所述UE支持的载波组合的限制导致当所述UE在其他载波上进行传输时无法在SL载波中对应所述集合S A对应的SL载波上进行SL传输。又如，由于调谐到SL载波中对应所述集合S A中的某个资源所需要的时间的要求超出了所述UE的能力而导致所述UE无法在所述资源进行SL传输。
●所述UE通过感测(sensing)操作识别出的不可用的资源。例如，通过监听(monitor)或检测(detect)或接收(receive)SL链路上发送的(例如其他UE发送的)资源预留信息(例如SCl中的资源预留信息)，进而确定的已被预留的资源集合和/或无法确定是否已被预留的资源集合和/或可能产生冲突的资源集合和/或已被分配的资源集合和/或不可用于分配的资源集合，等等。
●其他UE或基站指示的不可用的资源。例如，其他UE通过监听或检测或接收SL链路上发送的资源预留信息(例如SCI中的资源预留信息)，从而确定的已被预留的资源集合和/或无法确定是否已被预留的资源集合和/或可能产生冲突的资源集合和/或已被分配的资源集合和/或不可用于分配的资源集合和/或非优先分配的资源集合，等等。其他UE可以通过SL传输中携带的信令向所述UE指示与这些资源有关的信息。
SL资源分配模式2所对应的操作可以包括，从所述资源子集S A中选择用于一个PSSCH/PSCCH传输(例如PSSCH传输，又如PSCCH传输，又如复用在同一个资源中的PSSCH传输和PSCCH传输)的资源。
SL资源分配模式2所对应的操作可以包括，从所述资源子集S A中选择用于多个PSSCH/PSCCH传输的资源。
SL资源分配模式2所对应的操作可以包括，从所述资源子集S A中选择用于一个传输块的传输资源，例如从所述资源子集S A中选择用于所述传输块的初始传输以及每一次重传所需的资源。
SL资源分配模式2所对应的操作可以包括，从所述资源子集S A中选 择用于多个传输块的传输资源，例如从所述资源子集S A中选择用于所述多个传输块中的每一个传输块的初始传输以及每一次重传所需的资源。在SL资源分配模式2中，在从所述资源子集S A中选择资源时，可以使用“随机选择”的方式，例如，按等概率的方式从所述资源子集S A中选择一个资源。
若一个资源选择机制通过感测操作识别出不可用的资源，则可以认为该资源选择机制是一种“基于感测的资源选择机制”。其中，感测操作可以是“全感测”(full sensing，或者简称为“感测”，sensing)，例如，UE必须监听感测窗口(例如，时间间隔
Figure PCTCN2021140768-appb-000047
)对应的时间窗口)内的属于(或者，可以属于)所述资源池u sel的、除了由于所述UE的能力限制而无法监听的那些时隙(例如，由于半双工限制而无法在执行SL传输时监听的那些时隙)和/或一些特殊时隙(例如，无法用于传输PSCCH和/或PSSCH的时隙)以外的所有时隙；其中，T 0可以通过高层参数(例如参数sl-SensingWindow)进行配置，
Figure PCTCN2021140768-appb-000048
可以与UE的处理能力有关。相应的资源选择机制可以称为“基于全感测的资源选择机制”，或者“基于全感测的资源选择”，或者简称为“全感测”，或者在不引起混淆的情况下简称为“基于感测的资源选择机制”，或者“基于感测的资源选择”，或者简称为“感测”。
感测操作也可以是“部分感测”(partial sensing)，例如，UE只需要监听所述感测窗口内的属于(或者，可以属于)所述资源池u sel的部分时隙(例如，周期性出现的部分时隙)。相应的资源选择机制可以称为“基于部分感测的资源选择机制”，或者“基于部分感测的资源选择”，或者简称为“部分感测”。
若一个资源选择机制不涉及(或者不执行)感测操作，则可以认为该资源选择机制是一种“不基于感测的资源选择机制”。例如，所述集合S A可以等于所述“所有的候选资源组成的集合S all”，或者等于在所述“所有的候选资源组成的集合S all”中排除一些特殊的资源而得到的集合。其中，所述特殊的资源可以包括下面中的一项或多项：
●无法用于传输PSCCH/PSSCH的时隙中的资源。
●由于所述UE的传输能力限制而无法在其上进行SL传输的资源。
●其他UE或基站指示的不可用的资源。
相应的资源选择机制可以称为“随机资源选择”(random resource selection)，或者简称为“随机选择”(random selection)，或者，称为“不基于感测的随机资源选择”。
另外，也可以存在“基于感测的随机资源选择”。例如，在基于感测的资源选择机制中，若由于某种原因无法应用感测结果，或者只是应用部分的感测结果，则可以认为是“基于感测的随机资源选择”。
不同的UE可以支持不同的资源选择机制集合。例如，所有UE都支持“随机资源选择”。又如，一部分UE只支持“全感测”和“随机资源选择”。又如，一部分UE只支持“部分感测”和“随机资源选择”。又如，一部分UE支持“全感测”、“部分感测”和“随机资源选择”。UE支持的资源选择机制的集合可以记为M cap。
在各种SL资源选择机制中，可以认为“全感测”对电量(或能源)的消耗比较大，比较适用于对能耗不敏感的UE(例如在V2V通信中，安装在汽车上的UE)，而“部分感测”、“随机资源选择”等的能耗消耗相对比较小，比较适用于对能耗敏感的UE和/或对能耗敏感的通信场景(例如V2P通信中“Pedestrian”对应的手持设备)。另一方面，“随机资源选择”可以作为一种异常处理机制或者其他资源选择机制(例如“全感测”)的一种回退机制(例如，在V2V通信中，当暂无感测结果可用时，可以从“全感测”回退至“随机资源选择”)，所以，“随机资源选择”也可以应用于对能耗不敏感的UE。当然，“部分感测”、“随机资源选择”等SL资源选择机制的缺点是增加了不同UE选择的资源发生冲突的概率。
“部分感测”、“随机资源选择”等SL资源选择机制可以作为“SL节能”特性的一部分应用到SL通信中。例如，只有在使能(或者说打开，或者说配置)“SL节能”的情况下，才可以使用“部分感测”，等等。
在使能“SL节能”的情况下，UE可以处于多个与“SL节能”有关的状态(例如称为SL状态，或者SL模式，或者SL通信方式，等等)中 的一个，例如：
●第一SL状态。例如，第一SL状态可以是“SL非节能状态”，例如，处于这一SL状态的UE对电量(或能源)的消耗不敏感，相应地，所使用的资源选择机制不需要特别考虑电量(或能源)的消耗。第一SL状态也可以称为“第一SL模式”，或“第一SL通信方式”，等等。SL非节能状态也可以称为“SL非节能模式”，或“SL非节能通信方式”，等等。SL非节能通信方式的一个例子可以是一些特定的V2X通信方式(例如，V2V)。
●第二SL状态。第二SL状态可以是“SL节能状态”，例如，处于这一SL状态的UE对电量(或能源)的消耗比较敏感或者非常敏感，相应地，所使用的资源选择机制需要考虑电量(或能源)的消耗，例如，避免或减少使用耗电量高的资源选择机制。第二SL状态也可以称为“第二SL模式”，或“第二SL通信方式”，等等。SL节能状态也可以称为“SL节能模式”，或“SL节能通信方式”，等等。SL节能通信方式的一个例子可以是一些特定的V2X通信方式(例如，V2P)。SL节能通信方式的另一个例子可以是用于公共安全的SL通信方式。
可以通过一个高层协议参数(例如称为sl-powerSavingConfig)使能(或者说“打开”，或者说“配置”)或去使能(或者说关闭)“SL节能”。例如，若所述参数sl-powerSavingConfig不存在(或者说未配置)，则表示“SL节能”未使能或已去使能。又如，若所述参数sl-powerSavingConfig存在(或者说已配置)，则表示“SL节能”已使能。又如，若所述参数sl-powerSavingConfig(或所述参数sl-powerSavingConfig对应的信息元素中的某个参数)的取值为一个预定义的值(例如，“disabled”，“false”等)，则表示“SL节能”未使能或已去使能。又如，若所述参数sl-powerSavingConfig(或所述参数sl-powerSavingConfig对应的信息元素中的某个参数)的取值为一个预定义的值(例如，“enabled”，“true”等)，则表示“SL节能”已使能。
若“SL节能”未使能，可以认为UE总是处于第一SL状态。
UE支持的资源选择机制的集合M cap可以与所述UE所处的SL状态 有关。例如，若UE处于第一SL状态，则所述集合M cap等于集合M cap，1；又如，若所述UE处于第二SL状态，则所述集合M cap等于集合M cap，2。其中，可选地，所述集合M cap，1和所述集合M cap，2可以相同，也可以不同。例如，所述集合M cap，1是{全感测}；又如，所述集合M cap，1是{全感测，随机资源选择}；又如，所述集合M cap，1是{全感测，部分感测，随机资源选择}；又如，所述集合M cap，2可以是{随机资源选择}；又如，所述集合M cap，2可以是{部分感测，随机资源选择}。
[实施例一]
下面结合图1来说明本发明的实施例一的由用户设备执行的方法。
图1是示出了根据本发明的实施例一的由用户设备执行的方法的流程图。
如图1所示，在本发明的实施例一中，用户设备UE执行的步骤包括：步骤S101、步骤S103、步骤S105和步骤S107中的部分或全部。
具体地，可选地，在步骤S101，获取与SL资源分配有关的信息。
可选地，所述“与SL资源分配有关的信息”中的部分或全部是预定义的信息。
可选地，所述“与SL资源分配有关的信息”中的部分或全部是在高层协议中配置的信息。
可选地，所述“与SL资源分配有关的信息”中的部分或全部是在高层协议中预配置的信息。
可选地，所述“与SL资源分配有关的信息”中的部分或全部是用于资源分配模式2的信息。
可选地，所述“与SL资源分配有关的信息”可以包含一个资源池集合(例如记为U mode2)的信息。
可选地，所述资源池集合U mode2是一个预定义的集合。
可选地，所述资源池集合U mode2是一个在高层协议中配置的集合。
可选地，所述资源池集合U mode2是一个在高层协议中预配置的集合。
可选地，所述资源池集合U mode2中的资源池是传输资源池。
可选地，所述资源池集合U mode2是用于资源分配模式2的部分或全部资源池的集合。
可选地，所述资源池集合U mode2可以通过一个或多个高层协议参数配置或预配置。例如，所述资源池集合U mode2由参数sl-TxPoolSelectedNormal-r16配置。又如，所述资源池集合U mode2由参数sl-TxPoolExceptional-r16配置。又如，所述资源池集合U mode2由参数sl-TxPoolSelectedNormal-r16和参数sl-TxPoolExceptional-r16共同配置。
可选地，所述资源池集合U mode2中的部分资源池构成集合U mode2，legacy，其余资源池构成集合U mode2，new。例如，所述集合U mode2，legacy由参数sl-TxPoolSelectedNormal-r16配置，所述集合U mode2，new由参数sl-TxPoolSelectedNormal2-r17配置。又如，所述集合U mode2，legacy由参数sl-TxPoolExceptional-r16配置，所述集合U mode2，new可以由参数sl-TxPoolExceptional2-r17配置。
可选地，所述资源池集合U mode2中的每个资源池对应一个资源选择机制集合，其中包含一个或多个在所述资源池中使能的(enabled)或者允许的(allowed)资源选择机制。例如，所述资源池集合U mode2中的第i个资源池(例如记为u mode2，i)对应资源选择机制集合M i；其中，
Figure PCTCN2021140768-appb-000049
其中
Figure PCTCN2021140768-appb-000050
是所述资源池集合U mode2中的资源选择机制的个数。
可选地，对于区间
Figure PCTCN2021140768-appb-000051
内的一个或多个(例如全部)i的值，资源选择机制集合M i可以是空集，即其中不包含任何资源选择机制。
可选地，对于区间
Figure PCTCN2021140768-appb-000052
内的一个或多个(例如全部)i的值，所述资源选择机制集合M i中可以包含下面中的一项或多项：
●全感测。
●部分感测。
●随机资源选择。
●基于感测的随机资源选择。
●不基于感测的随机资源选择。
可选地，对于区间
Figure PCTCN2021140768-appb-000053
内的一个或多个(例如全部)i的值，在资源池u mode2，i中只能使用相应的资源选择机制集合M i中包含的资源选择机制。
可选地，对于区间
Figure PCTCN2021140768-appb-000054
内的一个或多个(例如全部)i的值，在资源池u mode2，i中不能使用相应的资源选择机制集合M i中不包含的资源选择机制。
可选地，对于区间
Figure PCTCN2021140768-appb-000055
内的一个或多个(例如全部)i的值，在资源池u mode2，i中可以按下面中的一种或多种方式确定相应的资源选择机制集合M i：
●所述资源选择机制集合M i是一个预定义的集合。可选地，所述预定义的集合与i有关。
●所述资源选择机制集合M i是一个在高层协议中配置的集合。可选地，所述在高层协议中配置的集合与i有关。
●所述资源选择机制集合M i是一个在高层协议中预配置的集合。可选地，所述在高层协议中预配置与i有关。
●通过一个高层协议参数(例如称为sl-resourceSelectionConfig)配置或预配置所述资源选择机制集合M i。可选地，所述参数sl-resourceSelectionConfig与i有关，即不同的i值可以对应不同的参数sl-resourceSelectionConfig。例如，记所述资源池u mode2，i对应的参数sl-resourceSelectionConfig所配置的资源选择机制集 合为M config，i。
●所述资源选择机制集合M i可以与一个预定义或配置或预配置的最小资源选择机制集合(例如记为M min)有关。例如M min＝{全感测}，又如M min＝{随机资源选择}，又如M min＝{全感测，随机资源选择}，又如M min＝{全感测，基于感测的随机资源选择}，又如M min＝{全感测，不基于感测的随机资源选择}，又如M min是一个空集。
例如，M i＝M config，i。
又如，M i是M config，i和所述最小资源选择机制M min的一个函数(例如M i等于M config，i和M min的并集)。例如，若M min＝{随机资源选择}，且M i等于M config，i和M min的并集，则所述资源池u mode2，i中总是允许使用随机资源选择。
又如，若所述资源池u mode2，i对应的参数sl-resourceSelectionConfig不存在(或者未配置)，则M i＝M min。此时可以认为M config，i是一个空集。
又如，若所述资源池u mode2，i对应的参数sl-resourceSelectionConfig未配置任何资源选择机制，则M i＝M min。此时可以认为M config，i是一个空集。
可选地，所述所述最小资源选择机制集合M min可以与所述UE所处的SL状态有关。例如，所述“与SL资源分配有关的信息”中可以包含不同的SL状态分别对应的集合M min；例如，若所述UE处于第一SL状态，则所述集合M min等于第一最小资源选择机制集合M min，1；又如，若所述UE处于第二SL状态，则所述集合M min等于第二最小资源选择机制集合M min，2。其中，可选地，所述第一最小资源选择机制集合M min，1和所述第二最小资源选择机制集合M min，2可以相同，也可以不同。例如，所述 第一最小资源选择机制集合M min，1是{全感测}；又如，所述第一最小资源选择机制集合M min，1是{随机资源选择}；又如，所述第一最小资源选择机制集合M min，1是{全感测，随机资源选择}；又如，所述第一最小资源选择机制集合M min，1是{全感测，基于感测的随机资源选择}；又如，所述第一最小资源选择机制集合M min，1是{全感测，不基于感测的随机资源选择}；又如，所述第二最小资源选择机制集合M min，2可以是{全感测}；又如，所述第二最小资源选择机制集合M min，2可以是{随机资源选择}；又如，所述第二最小资源选择机制集合M min，2可以是{全感测，随机资源选择}；又如，所述第二最小资源选择机制集合M min，2可以是{部分感测，随机资源选择}；又如，所述第二最小资源选择机制集合M min，2可以是{部分感测，基于感测的随机资源选择}；又如，所述第二最小资源选择机制集合M min，2可以是{部分感测，不基于感测的随机资源选择}。
可选地，所述资源池集合U mode2中至少有一个资源池对应的资源选择机制集合中包含“全感测”和/或“部分感测”和/或“随机资源选择”和/或“基于感测的随机资源选择”和/或“不基于感测的随机资源选择”。
可选地，所述资源池集合U mode2，legacy中至少有一个资源池对应的资源选择机制集合中包含“全感测”和/或“部分感测”和/或“随机资源选择”和/或“基于感测的随机资源选择”和/或“不基于感测的随机资源选择”。
可选地，所述资源池集合U mode2，new中至少有一个资源池对应的资源选择机制集合中包含“全感测”和/或“部分感测”和/或“随机资源选择”和/或“基于感测的随机资源选择”和/或“不基于感测的随机资源选择”。
可选地，所述资源池集合U mode2中的部分资源池(例如所述资源池 集合U mode2，legacy中的资源池)使用一种方式确定相应的资源选择机制集合，其余资源池(例如所述资源池集合U mode2，new中的资源池)使用另一种方式确定相应的资源选择机制集合。
可选地，所述资源池集合U mode2中多于一个资源池对应同一个参数sl-resourceSelectionConfig。例如，按下面中的一种方式配置或预配置所述参数sl-resourceSelectionConfig：
●所述资源池集合U mode2中的所有资源池对应同一个参数sl-resourceSelectionConfig。
●所述资源池集合U mode2中的部分资源池(例如所述资源池集合U mode2，legacy中的资源池)对应一个参数sl-resourceSelectionConfig(此时，可以记所述参数sl-resourceSelectionConfig为sl-resourceSelectionConfig-1，相应地，对这部分资源池，“参数sl-resourceSelectionConfig”指的是参数sl-resourceSelectionConfig-1)，其余资源池(例如所述资源池集合U mode2，new中的资源池)对应另一个参数sl-resourceSelectionConfig(此时，可以记所述参数sl-resourceSelectionConfig为sl-resourceSelectionConfig-2，相应地，对这部分资源池，“参数sl-resourceSelectionConfig”指的是参数sl-resourceSelectionConfig-2)。
●所述资源池集合U mode2中的所有元素分成
Figure PCTCN2021140768-appb-000056
个组(其中
Figure PCTCN2021140768-appb-000057
可以是一个预定义或配置或预配置的值)，每个组对应一个资源池子集(例如分别记为U mode2，1，U mode2，2，……，
Figure PCTCN2021140768-appb-000058
)，每个资源池子集分别对应一个参数sl-resourceSelectionConfig。例如，对资源池子集U mode2，j，
Figure PCTCN2021140768-appb-000059
可以记所述参数sl-resourceSelectionConfig为sl-resourceSelectionConfig-j，相应地，对所述资源池子集U mode2，j，“参数sl-resourceSelectionConfig”指的是参数sl-resourceSelectionConfig-j)。
可选地，若对于区间
Figure PCTCN2021140768-appb-000060
内的某个i的取值，资源池u mode2，i不对应任何资源选择机制(即所述集合M i是空集)，则在所述资源池u mode2，i中任何资源选择机制都不适用(例如，这表示所述资源池u mode2，i不支持使用资源分配模式2进行资源分配，相应地，若所述UE配置为使用资源分配模式2进行资源分配，则不能选择所述资源池u mode2，i)。
可选地，所述“与SL资源分配有关的信息”可以包含一个资源选择机制全集(例如，记为M all)。例如，所述资源选择机制全集M all中可以包含下面中的一项或多项：
●全感测。
●部分感测。
●随机资源选择。
●基于感测的随机资源选择。
●不基于感测的随机资源选择。
可选地，所述资源选择机制全集M all可以与所述UE所处的SL状态有关。例如，所述“与SL资源分配有关的信息”中可以包含不同的SL状态分别对应的资源选择机制全集M all；例如，若所述UE处于第一SL状态，则所述资源选择机制全集M all等于第一资源选择机制全集(例如，记为M all，1)；又如，若所述UE处于第二SL状态，则所述资源选择机制全集M all等于第二资源选择机制全集(例如，记为M all，2)。其中，可选地，所述第一资源选择机制全集M all，1和所述第二资源选择机制全集M all，2可以相同，也可以不同。例如，所述第一资源选择机制全集M all，1是{全感测，部分感测，随机资源选择}；又如，所述第一资源选择机制全集M all，1是 {全感测，部分感测，基于感测的随机资源选择，不基于感测的随机资源选择}；又如，所述第二资源选择机制全集M all，2可以是{部分感测，随机资源选择}；又如，所述第二资源选择机制全集M all，2可以是{部分感测，基于感测的随机资源选择}；又如，所述第二资源选择机制全集M all，2可以是{部分感测，不基于感测的随机资源选择}。
可选地，所述“与SL资源分配有关的信息”可以包含一个资源选择机制优先级顺序(例如，记为
Figure PCTCN2021140768-appb-000061
其中
Figure PCTCN2021140768-appb-000062
是所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000063
中包含的资源选择机制的个数，所述优先级顺序可以是从左到右优先级递减的顺序，或者从左到右优先级递增的顺序)。例如，所述资源选择机制优先级顺序
Figure PCTCN2021140768-appb-000064
可以是下面中的一项：
●全感测，部分感测，随机资源选择。
●全感测，随机资源选择，部分感测。
●部分感测，随机资源选择，全感测。
●部分感测，全感测，随机资源选择。
●随机资源选择，部分感测，全感测。
●随机资源选择，全感测，部分感测。
●部分感测，随机资源选择。
●随机资源选择，部分感测。
●全感测，随机资源选择。
●随机资源选择，全感测。
●全感测，部分感测。
●部分感测，全感测。
●全感测，部分感测，基于感测的随机资源选择，不基于感测的随机资源选择。
●全感测，部分感测，不基于感测的随机资源选择，基于感测的随机资源选择。
●全感测，基于感测的随机资源选择，部分感测，不基于感测的 随机资源选择。
●全感测，基于感测的随机资源选择，不基于感测的随机资源选择，部分感测。
●全感测，不基于感测的随机资源选择，基于感测的随机资源选择，部分感测。
●全感测，不基于感测的随机资源选择，部分感测，基于感测的随机资源选择。
●部分感测，全感测，基于感测的随机资源选择，不基于感测的随机资源选择。
●部分感测，全感测，不基于感测的随机资源选择，基于感测的随机资源选择。
●部分感测，基于感测的随机资源选择，全感测，不基于感测的随机资源选择。
●部分感测，基于感测的随机资源选择，不基于感测的随机资源选择，全感测。
●部分感测，不基于感测的随机资源选择，全感测，基于感测的随机资源选择。
●部分感测，不基于感测的随机资源选择，基于感测的随机资源选择，全感测。
●基于感测的随机资源选择，全感测，部分感测，不基于感测的随机资源选择。
●基于感测的随机资源选择，全感测，不基于感测的随机资源选择，部分感测。
●基于感测的随机资源选择，部分感测，全感测，不基于感测的随机资源选择。
●基于感测的随机资源选择，部分感测，不基于感测的随机资源选择，全感测。
●基于感测的随机资源选择，不基于感测的随机资源选择，全感测，部分感测。
●基于感测的随机资源选择，不基于感测的随机资源选择，部分 感测，全感测。
●不基于感测的随机资源选择，全感测，部分感测，基于感测的随机资源选择。
●不基于感测的随机资源选择，全感测，基于感测的随机资源选择，部分感测。
●不基于感测的随机资源选择，部分感测，全感测，基于感测的随机资源选择。
●不基于感测的随机资源选择，部分感测，基于感测的随机资源选择，全感测。
●不基于感测的随机资源选择，基于感测的随机资源选择，全感测，部分感测。
●不基于感测的随机资源选择，基于感测的随机资源选择，部分感测，全感测。
●部分感测，基于感测的随机资源选择，不基于感测的随机资源选择。
●部分感测，不基于感测的随机资源选择，基于感测的随机资源选择。
●基于感测的随机资源选择，不基于感测的随机资源选择，部分感测。
●基于感测的随机资源选择，部分感测，不基于感测的随机资源选择。
●不基于感测的随机资源选择，基于感测的随机资源选择，部分感测。
●不基于感测的随机资源选择，部分感测，基于感测的随机资源选择。
可选地，所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000065
可以与所述UE所处的SL状态有关。例如，所述“与SL资源分配有关的信息”中可以包含不同的SL状态分别对应的资源选择机制优先级顺序；例如，若所述UE处于第一SL状态，则所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000066
等于 第一资源选择机制优先级顺序(例如，记为
Figure PCTCN2021140768-appb-000067
Figure PCTCN2021140768-appb-000068
其中
Figure PCTCN2021140768-appb-000069
是所述“第一资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000070
中包含的资源选择机制的个数。例如按从左到右优先级递减的顺序，又如按从左到右优先级递增的顺序)；又如，若所述UE处于第二SL状态，则所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000071
等于第二资源选择机制优先级顺序(例如，记为
Figure PCTCN2021140768-appb-000072
其中
Figure PCTCN2021140768-appb-000073
是所述“第二资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000074
中包含的资源选择机制的个数。例如按从左到右优先级递减的顺序，又如按从左到右优先级递增的顺序)。其中，可选地，所述第一资源选择机制优先级顺序
Figure PCTCN2021140768-appb-000075
和所述第二资源选择机制优先级顺序
Figure PCTCN2021140768-appb-000076
可以相同，也可以不同。例如，所述第一资源选择机制优先级顺序
Figure PCTCN2021140768-appb-000077
可以是“全感测，部分感测，随机资源选择”；又如，所述第二资源选择机制优先级顺序
Figure PCTCN2021140768-appb-000078
可以是“部分感测，随机资源选择”。
可选地，所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000079
可以直接体现在一个资源选择机制集合(例如，所述集合M i，其中
Figure PCTCN2021140768-appb-000080
又如，所述集合M min；又如，所述集合M min，1；又如，所述集合M min，2；又如，所述集合M config，i，其中
Figure PCTCN2021140768-appb-000081
又如，所述集合M all；又如，所述集合M all，1；又如，所述集合M all，2；又如，所述集合M cap；又如，所述集合M cap，1；又如，所述集合M cap，2)中，例如，所述资源选择机制集合是一个有序集合，相应地，所述优先级顺序对应所述集合中的元素出现的顺序(例如从左到右优先级递减的顺序，或者从左到右优先级递增的顺序)。例如，若所述集合M all，2等于{部分感测，随机资源选择}，则在所 述集合M all，2中，“部分感测”的优先级高于“随机资源选择”。又如，若所述集合M all，2等于{部分感测，随机资源选择}，则在所述集合M all，2中，“部分感测”的优先级低于“随机资源选择”。
可选地，所述“与SL资源分配有关的信息”可以包含“SL节能”指示。例如通过高层协议参数sl-powerSavingConfig指示“SL节能”是否已使能。
可选地，若“SL节能”未使能，则所述资源池集合U mode2等于所述集合U mode2，legacy，相应地，所述集合U mode2，new是空集。
可选地，若“SL节能”未使能，则对于所述资源池集合U mode2中的所有资源池，所述参数sl-resourceSelectionConfig不存在。
可选地，若“SL节能”未使能，则对于区间
Figure PCTCN2021140768-appb-000082
内的一个或多个(例如全部)i的值，集合M i等于{全感测}。
可选地，若“SL节能”未使能，则对于区间
Figure PCTCN2021140768-appb-000083
内的一个或多个(例如全部)i的值，集合M i等于{全感测，随机资源选择}。
可选地，若“SL节能”未使能，则对于区间
Figure PCTCN2021140768-appb-000084
内的一个或多个(例如全部)i的值，集合M i等于{全感测，基于感测的随机资源选择}。
可选地，若“SL节能”未使能，则对于区间
Figure PCTCN2021140768-appb-000085
内的一个或多个(例如全部)i的值，集合M i等于{全感测，不基于感测的随机资源选择}。
可选地，若“SL节能”未使能，则所述资源选择机制全集M all等于{全感测}。
可选地，若“SL节能”未使能，则所述资源选择机制全集M all等于{全感测，随机资源选择}。
可选地，若“SL节能”未使能，则所述资源选择机制全集M all等于{全感测，基于感测的随机资源选择}。
可选地，若“SL节能”未使能，则所述资源选择机制全集M all等于{全感测，不基于感测的随机资源选择}。
可选地，若“SL节能”未使能，则所述资源选择机制全集M all等于{全 感测，基于感测的随机资源选择，不基于感测的随机资源选择}。
可选地，若“SL节能”未使能，则所述最小资源选择机制集合M min等于{全感测}。
可选地，若“SL节能”未使能，则所述最小资源选择机制集合M min等于{全感测，部分感测}。
可选地，若“SL节能”未使能，则所述最小资源选择机制集合M min等于{全感测，随机资源选择}。
可选地，若“SL节能”未使能，则所述最小资源选择机制集合M min等于{全感测，基于感测的随机资源选择}。
可选地，若“SL节能”未使能，则所述最小资源选择机制集合M min等于{全感测，不基于感测的随机资源选择}。
可选地，若所述UE中至少有一个逻辑信道配置为使能HARQ反馈，则所述资源池集合U mode2中至少有一个资源池中配置了用于传输HARQ反馈的资源。
可选地，若所述UE中至少有一个逻辑信道配置为使能HARQ反馈，且所述资源池集合U mode2中有一个或多个资源池对应的资源选择机制集合中包含资源选择机制m，则所述一个或多个资源池中至少有一个配置了用于传输HARQ反馈的资源。其中，
●可选地，所述资源选择机制m可以是一个预定义或配置或预配置的资源选择机制。
●可选地，所述资源选择机制m可以是一个预定义或配置或预配置的资源选择机制集合中的一个。
●可选地，所述资源选择机制m可以是任意一个资源选择机制。
此外，可选地，在步骤S103，确定一个资源选择机制(例如记为m current，1)。
可选地，为每个逻辑信道分别确定一个资源选择机制。例如，当某个逻辑信道中有SL数据需要传输时，和/或有SL-CSI报告被触发时，和/或其他条件满足时，确定相应的资源选择机制。此时，所述资源选择机制 m current，1对应当前的逻辑信道。
可选地，为所有逻辑信道确定一个共同的资源选择机制。
可选地，所述资源选择机制m current，1是从一个候选“资源选择机制集合”(例如记为M cand，1)中确定(或者说选择)的一个资源选择机制。其中，
●可选地，所述集合M cand，1是满足第一资源选择机制确定条件的所有资源选择机制的集合。
●可选地，所述集合M cand，1是在所述资源选择机制全集M all中满足第一资源选择机制确定条件的所有资源选择机制的集合。
●可选地，所述集合M cand，1可以与当前的逻辑信道是否配置为使能HARQ反馈有关。例如，若当前的逻辑信道配置为使能HARQ反馈，则所述集合M cand，1是满足第二资源选择机制确定条件的所有资源选择机制的集合。又如，若当前的逻辑信道配置为去使能HARQ反馈，则所述集合M cand，1是满足第三资源选择机制确定条件的所有资源选择机制的集合。
●可选地，所述集合M cand，1可以与所述UE所处的SL状态有关。例如，若所述UE处于第一SL状态，则所述集合M cand，1是满足第四资源选择机制确定条件的所有资源选择机制的集合。又如，若所述UE处于第二SL状态，则所述集合M cand，1是满足第五资源选择机制确定条件的所有资源选择机制的集合。
●可选地，所述集合M cand，1可以与当前的逻辑信道是否配置为使能HARQ反馈以及所述UE所处的SL状态有关。例如，若当前的逻辑信道配置为使能HARQ反馈，且所述UE处于第一SL状态，则所述集合M cand，1是满足第六资源选择机制确定条件的所有资源选择机制的集合。又如，若当前的逻辑信道配置为去使能HARQ反馈，且所述UE处于第一SL状态，则所述集合M cand，1是满足第七资源选择机制确定条件的所有资源选择机制的集合。又如，若当前的逻辑信道配置为使能HARQ反馈，且 所述UE处于第二SL状态，则所述集合M cand，1是满足第八资源选择机制确定条件的所有资源选择机制的集合。又如，若当前的逻辑信道配置为去使能HARQ反馈，且所述UE处于第二SL状态，则所述集合M cand，1是满足第九资源选择机制确定条件的所有资源选择机制的集合。
其中，
●可选地，对于资源选择机制m，所述“第一资源选择机制确定条件”、所述“第二资源选择机制确定条件”、所述“第三资源选择机制确定条件”、所述“第四资源选择机制确定条件”、所述“第五资源选择机制确定条件”、所述“第六资源选择机制确定条件”、所述“第七资源选择机制确定条件”、所述“第八资源选择机制确定条件”和所述“第九资源选择机制确定条件”中的任意一个可以包括下面中的一项或多项(在适用的情况下按“与”或者“或”的方式任意组合)：
◆所述UE支持所述资源选择机制m。
◆所述资源选择机制m在所述资源选择机制全集M all中。
◆所述资源选择机制m在所述第一资源选择机制全集M all，1中。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源选择机制m在所述第二资源选择机制全集M all，2中。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源选择机制m在所述最小资源选择机制集合M min中。
◆所述资源选择机制m在所述第一最小资源选择机制集合M min，1中。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源选择机制m在所述第二最小资源选择机制集合 M min，2中。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源选择机制m在所述集合
Figure PCTCN2021140768-appb-000086
◆所述资源选择机制m在所述集合
Figure PCTCN2021140768-appb-000087
中。
◆所述资源选择机制m在所述集合
Figure PCTCN2021140768-appb-000088
中。
◆所述资源选择机制m在所述集合
Figure PCTCN2021140768-appb-000089
Figure PCTCN2021140768-appb-000090
中。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源选择机制m在所述集合
Figure PCTCN2021140768-appb-000091
Figure PCTCN2021140768-appb-000092
中。(例如当所述UE处于第二SL状态时应用此条件)
◆对于所述资源选择机制m，所述资源池集合U mode2中至少有
Figure PCTCN2021140768-appb-000093
个资源池满足第一资源池配置条件。
◆对于所述资源选择机制m，所述资源池集合U mode2中有
Figure PCTCN2021140768-appb-000094
个资源池满足第一资源池配置条件。
◆对于所述资源选择机制m，所述资源池集合U mode2中至多有
Figure PCTCN2021140768-appb-000095
个资源池满足第一资源池配置条件。
其中，对于所述
Figure PCTCN2021140768-appb-000096
个资源池(例如分别记为
Figure PCTCN2021140768-appb-000097
和
Figure PCTCN2021140768-appb-000098
)和所述资源选择机制m，所述“第一资源池配置条件”可以包括下面中的一项或多项(在适用的情况下按“与”或者“或”的方式任意组合)：
◆所述资源池
Figure PCTCN2021140768-appb-000099
和
Figure PCTCN2021140768-appb-000100
分别对应的资源选择机制集合
Figure PCTCN2021140768-appb-000101
和
Figure PCTCN2021140768-appb-000102
中的每一个都包含所述资源选择机制m。
◆所述资源池
Figure PCTCN2021140768-appb-000103
和
Figure PCTCN2021140768-appb-000104
中的每一个都配置了用于传输HARQ反馈的资源。(例如当当前的逻辑信道配置为使能HARQ反馈时应用此条件)
●可选地，所述集合M cand，1是所述最小资源选择机制集合M min、所述集合M cap、集合
Figure PCTCN2021140768-appb-000105
集合
Figure PCTCN2021140768-appb-000106
和集合
Figure PCTCN2021140768-appb-000107
和所述资源选择机制全集M all中的部分或全部的交集。
可选地，所述资源选择机制m current，1是从所述候选“资源选择机制集合”M cand，1中选择(例如，随机选择)的任意一个资源选择机制。
可选地，所述资源选择机制m current，1是从所述候选“资源选择机制集合”M cand，1中选择(例如，随机选择)的、所述UE支持的任意一个资源选择机制。
可选地，若所述UE处于第一SL状态，则所述资源选择机制m current，1是从所述候选“资源选择机制集合”M cand，1中选择(例如，随机选择)的任意一个资源选择机制。
可选地，若所述UE处于第一SL状态，则所述资源选择机制m current，1是从所述候选“资源选择机制集合”M cand，1中选择(例如，随机选择)的、所述UE支持的任意一个资源选择机制。
可选地，若所述UE处于第二SL状态，则所述资源选择机制m current，1 是从所述候选“资源选择机制集合”M cand，1中选择(例如，随机选择)的任意一个资源选择机制。
可选地，若所述UE处于第二SL状态，则所述资源选择机制m current，1是从所述候选“资源选择机制集合”M cand，1中选择(例如，随机选择)的、所述UE支持的任意一个资源选择机制。
可选地，所述资源选择机制m current，1是根据所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000108
从所述候选“资源选择机制集合”M cand，1中确定的一个资源选择机制(例如，所述资源选择机制m current，1是根据所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000109
确定的所述候选“资源选择机制集合”M cand，1中的最高优先级的资源选择机制)。
可选地，若所述UE处于第一SL状态，则所述资源选择机制m current，1是根据所述“第一资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000110
从所述候选“资源选择机制集合”M cand，1中确定的一个资源选择机制(例如，所述资源选择机制m current，1是根据所述“第一资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000111
确定的所述候选“资源选择机制集合”M cand，1中的最高优先级的资源选择机制)。
可选地，若所述UE处于第二SL状态，则所述资源选择机制m current，1是根据所述“第二资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000112
从所述候选“资源选择机制集合”M cand，1中确定的一个资源选择机制(例如，所述资源选择机制m current，1是根据所述“第二资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000113
确定的所述候选“资源选择机制集合”M cand，1中的最高优先级的资源选择机制)。
可选地，所述资源选择机制m current，1是根据所述资源选择机制全集M all对应的资源选择机制优先级顺序从所述候选“资源选择机制集合”M cand，1中确定的一个资源选择机制(例如，所述资源选择机制m current，1是根据所述资源选择机制全集M all对应的资源选择机制优先级顺序确定的所述候选“资源选择机制集合”M cand，1中的最高优先级的资源选择机制)。
可选地，若所述UE处于第一SL状态，则所述资源选择机制m current，1是根据所述第一资源选择机制全集M all，1对应的资源选择机制优先级顺序从所述候选“资源选择机制集合”M cand，1中确定的一个资源选择机制(例如，所述资源选择机制m current，1是根据所述第一资源选择机制全集M all，1对应的资源选择机制优先级顺序确定的所述候选“资源选择机制集合”M cand，1中的最高优先级的资源选择机制)。
可选地，若所述UE处于第二SL状态，则所述资源选择机制m current，1是根据所述第二资源选择机制全集M all，2对应的资源选择机制优先级顺序从所述候选“资源选择机制集合”M cand，1中确定的一个资源选择机制(例如，所述资源选择机制m current，1是根据所述第二资源选择机制全集M all，2对应的资源选择机制优先级顺序确定的所述候选“资源选择机制集合”M cand，1中的最高优先级的资源选择机制)。
可选地，按所述“资源选择机制优先级顺序
Figure PCTCN2021140768-appb-000114
”确定(或者调整)所述候选“资源选择机制集合”M cand，1中的资源选择机制的优先级顺序。
可选地，若所述UE处于第一SL状态，则按所述“第一资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000115
确定(或者调整)所述候选“资源选择机制集合” M cand，1中的资源选择机制的优先级顺序。
可选地，若所述UE处于第二SL状态，则按所述“第二资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000116
确定(或者调整)所述候选“资源选择机制集合”M cand，1中的资源选择机制的优先级顺序。
可选地，按所述资源选择机制全集M all对应的资源选择机制优先级顺序确定(或者调整)所述候选“资源选择机制集合”M cand，1中的资源选择机制的优先级顺序。
可选地，若所述UE处于第一SL状态，则按所述第一资源选择机制全集M all，1对应的资源选择机制优先级顺序确定(或者调整)所述候选“资源选择机制集合”M cand，1中的资源选择机制的优先级顺序。
可选地，若所述UE处于第二SL状态，则按所述第二资源选择机制全集M all，2对应的资源选择机制优先级顺序确定(或者调整)所述候选“资源选择机制集合”M cand，1中的资源选择机制的优先级顺序。
可选地，所述资源选择机制m current，1是根据所述候选“资源选择机制集合”M cand，1中的资源选择机制的优先级顺序确定的一个资源选择机制(例如，所述资源选择机制m current，1是所述候选“资源选择机制集合”M cand，1中的最高优先级的资源选择机制)。
可选地，若所述候选“资源选择机制集合”M cand，1是空集，则将所述资源选择机制m current，1确定为一个预定义或配置或预配置的资源选择机制(例如记为m fallback，1)。例如，m fallback，1是“全感测”；又如，m fallback，1是“部分感测”；又如，m fallback，1是“随机资源选择”；又如，m fallback，1是“基于感测的随机资源选择”；又如，m fallback，1是“不基于感测的随机资源 选择”。可选地，m fallback，1与所述UE所处的SL状态有关。例如，若所述UE处于第一SL状态，则m fallback，1是“全感测”；又如，若所述UE处于第一SL状态，则m fallback，1是“部分感测”；又如，若所述UE处于第一SL状态，则m fallback，1是“随机资源选择”；又如，若所述UE处于第一SL状态，则m fallback，1是“基于感测的随机资源选择”；又如，若所述UE处于第一SL状态，则m fallback，1是“不基于感测的随机资源选择”；又如，若所述UE处于第二SL状态，则m fallback，1是“全感测”；又如，若所述UE处于第二SL状态，则m fallback，1是“部分感测”；又如，若所述UE处于第二SL状态，则m fallback，1是“随机资源选择”；又如，若所述UE处于第二SL状态，则m fallback，1是“基于感测的随机资源选择”；又如，若所述UE处于第二SL状态，则m fallback，1是“不基于感测的随机资源选择”。
可选地，若所述候选“资源选择机制集合”M cand，1是空集，则将所述资源选择机制m current，1确定为所述UE支持的任意一个资源选择机制。
可选地，若所述候选“资源选择机制集合”M cand，1是空集，则将所述资源选择机制m current，1确定为所述UE支持的、按所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000117
确定的最高优先级的资源选择机制。
可选地，若所述UE处于第一SL状态，且所述候选“资源选择机制集合”M cand，1是空集，则将所述资源选择机制m current，1确定为所述UE支持的、按所述“第一资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000118
确定的最高优先级的资源选择机制。
可选地，若所述UE处于第二SL状态，且所述候选“资源选择机制 集合”M cand，1是空集，则将所述资源选择机制m current，1确定为所述UE支持的、按所述“第二资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000119
确定的最高优先级的资源选择机制。
可选地，若所述候选“资源选择机制集合”M cand，1是空集，则所述UE不执行SL资源分配模式2。
可选地，所述资源选择机制m current，1的确定方式(例如，在确定所述资源选择机制m current，1时，所述候选“资源选择机制集合”M cand，1的确定方式，以及从所述候选“资源选择机制集合”M cand，1中选择一个资源选择机制的方式，等等)与所述资源池集合U mode2的配置方式有关。例如，若所述资源池集合U mode2由参数sl-TxPoolSelectedNormal-r16配置，则按一种方式确定所述资源选择机制m current，1；若所述资源池集合U mode2由参数sl-TxPoolExceptional-r16配置，则按另一种方式确定所述资源选择机制m current，1。
可选地，将所述资源选择机制m current，1确定为“全感测”。
可选地，若满足下面中的一项或多项，则将所述资源选择机制m current，1确定为“全感测”：
●所述UE支持“全感测”。
●所述资源池集合U mode2中至少有
Figure PCTCN2021140768-appb-000120
个资源池(例如
Figure PCTCN2021140768-appb-000121
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000122
)中的每一个都包含“全感测”。
●所述资源池集合U mode2中有
Figure PCTCN2021140768-appb-000123
个资源池(例如
Figure PCTCN2021140768-appb-000124
Figure PCTCN2021140768-appb-000125
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000126
)中的每一个都包含“全感测”。
●所述资源池集合U mode2中至多有
Figure PCTCN2021140768-appb-000127
个资源池(例如
Figure PCTCN2021140768-appb-000128
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000129
)中的每一个都包含“全感测”。
●所述UE处于第一SL状态。
●所述UE处于第二SL状态。
可选地，将所述资源选择机制m current，1确定为“部分感测”。
可选地，若满足下面中的一项或多项，则将所述资源选择机制m current，1确定为“部分感测”：
●所述UE支持“部分感测”。
●所述资源池集合U mode2中至少有
Figure PCTCN2021140768-appb-000130
个资源池(例如
Figure PCTCN2021140768-appb-000131
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000132
)中的每一个都包含“部分感测”。
●所述资源池集合U mode2中有
Figure PCTCN2021140768-appb-000133
个资源池(例如
Figure PCTCN2021140768-appb-000134
Figure PCTCN2021140768-appb-000135
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000136
)中的每一个都包含“部分感测”。
●所述资源池集合U mode2中至多有
Figure PCTCN2021140768-appb-000137
个资源池(例如
Figure PCTCN2021140768-appb-000138
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000139
)中的每一个都包 含“部分感测”。
●所述UE处于第一SL状态。
●所述UE处于第二SL状态。
可选地，将所述资源选择机制m current，1确定为“随机资源选择”。
可选地，若满足下面中的一项或多项，则将所述资源选择机制m current，1确定为“随机资源选择”：
●所述UE支持“随机资源选择”。
●所述资源池集合U mode2中至少有
Figure PCTCN2021140768-appb-000140
个资源池(例如
Figure PCTCN2021140768-appb-000141
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000142
)中的每一个都包含“随机资源选择”。
●所述资源池集合U mode2中有
Figure PCTCN2021140768-appb-000143
个资源池(例如
Figure PCTCN2021140768-appb-000144
Figure PCTCN2021140768-appb-000145
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000146
)中的每一个都包含“随机资源选择”。
●所述资源池集合U mode2中至多有
Figure PCTCN2021140768-appb-000147
个资源池(例如
Figure PCTCN2021140768-appb-000148
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000149
)中的每一个都包含“随机资源选择”。
●所述UE处于第一SL状态。
●所述UE处于第二SL状态。
可选地，将所述资源选择机制m current，1确定为“基于感测的随机资源选择”。
可选地，若满足下面中的一项或多项，则将所述资源选择机制m current，1确定为“基于感测的随机资源选择”：
●所述UE支持“基于感测的随机资源选择”。
●所述资源池集合U mode2中至少有
Figure PCTCN2021140768-appb-000150
个资源池(例如
Figure PCTCN2021140768-appb-000151
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000152
)中的每一个都包含“基于感测的随机资源选择”。
●所述资源池集合U mode2中有
Figure PCTCN2021140768-appb-000153
个资源池(例如
Figure PCTCN2021140768-appb-000154
Figure PCTCN2021140768-appb-000155
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000156
)中的每一个都包含“基于感测的随机资源选择”。
●所述资源池集合U mode2中至多有
Figure PCTCN2021140768-appb-000157
个资源池(例如
Figure PCTCN2021140768-appb-000158
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000159
)中的每一个都包含“基于感测的随机资源选择”。
●所述UE处于第一SL状态。
●所述UE处于第二SL状态。
可选地，将所述资源选择机制m current，1确定为“不基于感测的随机资源选择”。
可选地，若满足下面中的一项或多项，则将所述资源选择机制m current，1确定为“不基于感测的随机资源选择”：
●所述UE支持“不基于感测的随机资源选择”。
●所述资源池集合U mode2中至少有
Figure PCTCN2021140768-appb-000160
个资源池(例如
Figure PCTCN2021140768-appb-000161
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000162
)中的每一个都包含“不基于感测的随机资源选择”。
●所述资源池集合U mode2中有
Figure PCTCN2021140768-appb-000163
个资源池(例如
Figure PCTCN2021140768-appb-000164
Figure PCTCN2021140768-appb-000165
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000166
)中的每一个都包含“不基于感测的随机资源选择”。
●所述资源池集合U mode2中至多有
Figure PCTCN2021140768-appb-000167
个资源池(例如
Figure PCTCN2021140768-appb-000168
)分别对应的资源选择机制集合(例如
Figure PCTCN2021140768-appb-000169
)中的每一个都包含“不基于感测的随机资源选择”。
●所述UE处于第一SL状态。
●所述UE处于第二SL状态。
此外，可选地，在步骤S105，确定一个资源池(例如记为u current，1)。
可选地，为每个逻辑信道分别确定一个资源池。例如，当某个逻辑信道中有SL数据需要传输时，和/或有SL-CSI报告被触发时，和/或其他条件满足时，确定相应的资源池。此时，所述资源池u current，1对应当前的逻辑信道。
可选地，为所有逻辑信道确定一个共同的资源池u current，1。
可选地，所述资源池u current，1是从一个候选“资源池集合”(例如记为U cand，1)中确定(或者说选择)的一个资源池。其中，
●可选地，所述候选“资源池集合”U cand，1是满足第一资源池确定条件的所有资源池的集合。
●可选地，所述候选“资源池集合”U cand，1是所述资源池集合U mode2(或所述资源池集合U mode2，legacy，或所述资源池集合U mode2，new)中满足第一资源池确定条件的所有资源池的集合。
●可选地，所述候选“资源池集合”U cand，1可以与当前的逻辑信道是否配置为使能HARQ反馈有关。例如，若当前的逻辑信道配置为使能HARQ反馈，则所述候选“资源池集合”U cand，1是满足第二资源池确定条件的所有资源池的集合。又如，若当前的逻辑信道配置为去使能HARQ反馈，则所述候选“资源池集合”U cand，1是满足第三资源池确定条件的所有资源池的集合。
●可选地，所述候选“资源池集合”U cand，1可以与所述UE所处的SL状态有关。例如，所述UE处于第一SL状态，则所述候选“资源池集合”U cand，1是满足第四资源池确定条件的所有资源池的集合。又如，若所述UE处于第二SL状态，则所述候选“资源池集合”U cand，1是满足第五资源池确定条件的所有资源池的集合。
●可选地，所述候选“资源池集合”U cand，1可以与当前的逻辑信道是否配置为使能HARQ反馈以及所述UE所处的SL状态有关。例如，若当前的逻辑信道配置为使能HARQ反馈，且所述UE处于第一SL状态，则所述候选“资源池集合”U cand，1是满足第六资源池确定条件的所有资源池的集合。又如，若当前的逻辑信道配置为去使能HARQ反馈，且所述UE处于第一SL状态，则所述候选“资源池集合”U cand，1是满足第七资源池确定条件的所有资源池的集合。又如，若当前的逻辑信道配置为使能HARQ反馈，且所述UE处于第二SL状态，则所述候选“资源池集合”U cand，1是满足第八资源池确定条件的所有资源池的集合。又如，若当前的逻辑信道配置为去使能HARQ反馈，且所述UE处于第二SL状态，则所述候选“资源池集合”U cand，1是满足第九资源池确定条件的所有资源池的集合。
其中，
●可选地，对于资源池u，所述“第一资源池确定条件”、所述“第二资源池确定条件”、所述“第三资源池确定条件”、所述“第四资源池确定条件”、所述“第五资源池确定条件”、所述“第六资源池确定条件”、所述“第七资源池确定条件”、所述“第八资源池确定条件”和所述“第九资源池确定条件”中的任意一个可以包括下面中的一项或多项(在适用的情况下按“与”或者“或”的方式任意组合)：
◆所述资源池u在所述资源池集合U mode2中。
●所述资源池u在所述资源池集合U mode2，legacy中。
◆所述资源池u在所述资源池集合U mode2，new中。
◆所述资源池u对应的资源选择机制集合M不是空集。
◆所述资源池u对应的资源选择机制集合M中包含所述资源选择机制m current，1。
◆所述资源池u对应的资源选择机制集合M中至少包含所述UE支持的一个资源选择机制。
◆所述资源池u对应的资源选择机制集合M中包含所述UE支持的所有资源选择机制。
◆所述资源池u对应的资源选择机制集合M中至少包含所述集合M cap中的一个资源选择机制。
◆所述资源池u对应的资源选择机制集合M中包含所述集合M cap中的所有资源选择机制。
◆所述资源池u对应的资源选择机制集合M中至少包含所述集合M cap，1中的一个资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述集合M cap，1中的所有资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中至少包含所述集合M cap，2中的一个资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述集合M cap，2中的所有资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中至少包含所述资源选择机制全集M all中的一个资源选择机制。
◆所述资源池u对应的资源选择机制集合M中包含所述资源选择机制全集M all中的所有资源选择机制。
◆所述资源池u对应的资源选择机制集合M中至少包含所述第一资源选择机制全集M all，1中的一个资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述第一资源选择机制全集M all，1中的所有资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中至少包含所述第二资源选择机制全集M all，2中的一个资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述第二资源选择机制全集M all，2中的所有资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中至少包含所述最小资源选择机制集合M min中的一个资源选择机制。
◆所述资源池u对应的资源选择机制集合M中包含所述最小资源选择机制集合M min中的所有资源选择机制。
◆所述资源池u对应的资源选择机制集合M中至少包含所述第一最小资源选择机制集合M min，1中的一个资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述第一最小资源选择机制集合M min，1中的所有资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中至少包含所述第二最小资源选择机制集合M min，2中的一个资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述第二最小资源选择机制集合M min，2中的所有资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u配置了用于传输HARQ反馈的资源。(例如当当前的逻辑信道配置为使能HARQ反馈时应用此条件)
可选地，所述资源池u current，1是从所述候选“资源池集合”U cand，1中 选择(例如，随机选择)的任意一个资源池。
可选地，若所述UE处于第一SL状态，则所述资源池u current，1是从所述候选“资源池集合”U cand，1(例如，第一SL状态所对应的候选“资源池集合”U cand，1)中选择(例如，随机选择)的任意一个资源池。
可选地，若所述UE处于第二SL状态，则所述资源池u current，1是从所述候选“资源池集合”U cand，1(例如，第二SL状态所对应的候选“资源池集合”U cand，1)中选择(例如，随机选择)的任意一个资源池。
可选地，若所述逻辑信道配置为使能HARQ反馈，则所述资源池u current，1是从所述候选“资源池集合”U cand，1中选择(例如，随机选择)的、配置了用于传输HARQ反馈的资源的任意一个资源池。
可选地，若所述逻辑信道配置为去使能HARQ反馈，则所述资源池u current，1是从所述候选“资源池集合”U cand，1中选择(例如，随机选择)的任意一个资源池。
可选地，若所述逻辑信道配置为使能HARQ反馈，则所述资源池u current，1是从所述候选“资源池集合”U cand，1(例如，HARQ反馈配置为使能时所对应的所述候选“资源池集合”U cand，1)中选择(例如，随机选择)的任意一个资源池。
可选地，若所述逻辑信道配置为去使能HARQ反馈，则所述资源池u current，1是从所述候选“资源池集合”U cand，1(例如，HARQ反馈配置为去使能时所对应的所述候选“资源池集合”U cand，1)中选择(例如，随机选择)的任意一个资源池。
可选地，若所述候选“资源池集合”U cand，1是空集，则将所述资源池 u current，1确定为一个预定义或配置或预配置的资源选择机制(例如记为u fallback，1)。
可选地，若所述候选“资源池集合”U cand，1是空集，则将所述资源池u current，1确定为所述资源池集合U mode2中的任意一个资源池。
可选地，若所述候选“资源池集合”U cand，1是空集，则将所述资源池u current，1确定为所述资源池集合U mode2，legacy中的任意一个资源池。
可选地，若所述候选“资源池集合”U cand，1是空集，则将所述资源池u current，1确定为所述资源池集合U mode2，new中的任意一个资源池。
此外，可选地，在步骤S107，基于所述资源选择机制m current，1和/或所述资源池u current，1执行SL资源分配模式2。
可选地，在本发明的实施例一中，当配置为在SL通信中传输，且有相关数据需要传输时，执行所述步骤S101和/或所述步骤S103和/或所述步骤S105和/或所述步骤S107。
可选地，在本发明的实施例一中，当需要执行与SL资源分配模式2有关的操作时(例如，当需要选择用于一个传输块的传输资源时，或者，当需要选择用于多个传输块的传输资源时)，执行所述步骤S101和/或所述步骤S103和/或所述步骤S105和/或所述步骤S107。
可选地，在本发明的实施例一中，由所述UE的RRC层协议实体执行所述步骤S101和/或所述步骤S103和/或所述步骤S105和/或所述步骤S107。
可选地，在本发明的实施例一中，由所述UE的MAC层协议实体执行所述步骤S101和/或所述步骤S103和/或所述步骤S105和所述步骤 S107。可选地，所述UE的MAC层协议实体对每一个SL进程(或者说SL HARQ进程)分别执行所述步骤S101和/或所述步骤S103和/或所述步骤S105和所述步骤S107。
可选地，在本发明的实施例一中，所述随机选择可以是按等概率的方式随机确定(或者说选择)一个集合中的一个元素。
可选地，在本发明的实施例一中，所述
Figure PCTCN2021140768-appb-000170
可以是一个预定义或配置或预配置的值，例如
Figure PCTCN2021140768-appb-000171
又如
Figure PCTCN2021140768-appb-000172
可选地，在本发明的实施例一中，将一个逻辑信道配置为使能HARQ反馈的方式可以是，将相应的参数sl-HARQ-FeedbackEnabled-r16的值配置为“enabled”。
可选地，在本发明的实施例一中，将一个逻辑信道配置为去使能HARQ反馈的方式可以是，将相应的参数sl-HARQ-FeedbackEnabled-r16的值配置为“disabled”。
可选地，在本发明的实施例一中，所述“用于传输HARQ反馈的资源”可以是PSFCH资源。
这样，根据实施例一所述，本发明提供了一种方法，通过灵活设置确定资源选择机制和资源池的规则，使得在SL资源分配模式2中可以按照合适的资源选择机制在合适的资源池中进行资源分配，提高了SL资源分配模式2的性能。
[实施例二]
下面结合图2来说明本发明的实施例二的由用户设备执行的方法。
图2是示出了根据本发明的实施例二的由用户设备执行的方法的流程图。
如图2所示，在本发明的实施例二中，用户设备UE执行的步骤包括：步骤S201、步骤S203、步骤S205和步骤S207中的部分或全部。
具体地，可选地，在步骤S201，获取与SL资源分配有关的信息。例 如，根据实施例一中的步骤S101，获取与SL资源分配有关的信息。
此外，可选地，在步骤S203，确定一个资源池(例如记为u current，2)。
可选地，为每个逻辑信道分别确定一个资源池。例如，当某个逻辑信道中有SL数据需要传输时，和/或有SL-CSI报告被触发时，和/或其他条件满足时，确定相应的资源池。此时，所述资源池u current，2对应当前的逻辑信道。
可选地，为所有逻辑信道确定一个共同的资源池u current，2。
可选地，所述资源池u current，2是从一个候选“资源池集合”(例如记为U cand，2)中确定(或者说选择)的一个资源池。其中，
●可选地，所述候选“资源池集合”U cand，2是满足第十资源池确定条件的所有资源池的集合。
●可选地，所述候选“资源池集合”U cand，2是所述资源池集合U mode2(或所述资源池集合U mode2，legacy，或所述资源池集合U mode2，new)中满足第十资源池确定条件的所有资源池的集合。
●可选地，所述候选“资源池集合”U cand，2可以与当前的逻辑信道是否配置为使能HARQ反馈有关。例如，若当前的逻辑信道配置为使能HARQ反馈，则所述候选“资源池集合”U cand，2是满足第十一资源池确定条件的所有资源池的集合。又如，若当前的逻辑信道配置为去使能HARQ反馈，则所述候选“资源池集合”U cand，2是满足第十二资源池确定条件的所有资源池的集合。
●可选地，所述候选“资源池集合”U cand，2可以与所述UE所处的SL状态有关。例如，若所述UE处于第一SL状态，则所述候选“资源池集合”U cand，2是满足第十三资源池确定条件的所有资源池的集合。又如，若所述UE处于第二SL状态，则所述候选“资源池集合”U cand，2是满足第十四资源池确定条件的所有资源池的集合。
●可选地，所述候选“资源池集合”U cand，2可以与当前的逻辑信道是否配置为使能HARQ反馈以及所述UE所处的SL状态有关。例如，若当前的逻辑信道配置为使能HARQ反馈，且所述UE处于第一SL状态，则所述候选“资源池集合”U cand，2是满足第十五资源池确定条件的所有资源池的集合。又如，若当前的逻辑信道配置为去使能HARQ反馈，且所述UE处于第一SL状态，则所述候选“资源池集合”U cand，2是满足第十六资源池确定条件的所有资源池的集合。又如，若当前的逻辑信道配置为使能HARQ反馈，且所述UE处于第二SL状态，则所述候选“资源池集合”U cand，2是满足第十七资源池确定条件的所有资源池的集合。又如，若当前的逻辑信道配置为去使能HARQ反馈，且所述UE处于第二SL状态，则所述候选“资源池集合”U cand，2是满足第十八资源池确定条件的所有资源池的集合。
其中，
●可选地，对于资源池u，所述“第十资源池确定条件”、所述“第十一资源池确定条件”、所述“第十二资源池确定条件”、所述“第十三资源池确定条件”、所述“第十四资源池确定条件”、所述“第十五资源池确定条件”、所述“第十六资源池确定条件”、所述“第十七资源池确定条件”和所述“第十八资源池确定条件”中的任意一个可以包括下面中的一项或多项(在适用的情况下按“与”或者“或”的方式任意组合)：
◆所述资源池u在所述资源池集合U mode2中。
◆所述资源池u在所述资源池集合U mode2，legacy中。
◆所述资源池u在所述资源池集合U mode2，new中。
◆所述资源池u对应的资源选择机制集合M不是空集。
◆所述资源池u对应的资源选择机制集合M中至少包含所述UE支持的
Figure PCTCN2021140768-appb-000173
个资源选择机制。
◆所述资源池u对应的资源选择机制集合M中至少包含所述集合M cap中的
Figure PCTCN2021140768-appb-000174
个资源选择机制。
◆所述资源池u对应的资源选择机制集合M中至少包含所述集合M cap，1中的
Figure PCTCN2021140768-appb-000175
个资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中至少包含所述集合M cap，2中的
Figure PCTCN2021140768-appb-000176
个资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中至少包含所述资源选择机制全集M all中的
Figure PCTCN2021140768-appb-000177
个资源选择机制。
◆所述资源池u对应的资源选择机制集合M中至少包含所述第一资源选择机制全集M all，1中的
Figure PCTCN2021140768-appb-000178
个资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中至少包含所述第二资源选择机制全集M all，2中的
Figure PCTCN2021140768-appb-000179
个资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中至少包含所述最小资源选择机制集合M min中的一个资源选择机制。
◆所述资源池u对应的资源选择机制集合M中至少包含所述第一最小资源选择机制集合M min，1中的
Figure PCTCN2021140768-appb-000180
个资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中至少包含所述 第二最小资源选择机制集合M min，2中的
Figure PCTCN2021140768-appb-000181
个资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述UE支持的所有资源选择机制。
◆所述资源池u对应的资源选择机制集合M中包含所述集合M cap中的所有资源选择机制。
◆所述资源池u对应的资源选择机制集合M中包含所述集合M cap，1中的所有资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述集合M cap，2中的所有资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述资源选择机制全集M all中的所有资源选择机制。
◆所述资源池u对应的资源选择机制集合M中包含所述第一资源选择机制全集M all，1中的所有资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述第二资源选择机制全集M all，2中的所有资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述最小资源选择机制集合M min中的所有资源选择机制。
◆所述资源池u对应的资源选择机制集合M中包含所述第一最小资源选择机制集合M min，1中的所有资源选择机制。(例如当所述UE处于第一SL状态时应用此条件)
◆所述资源池u对应的资源选择机制集合M中包含所述第二最小资源选择机制集合M min，2中的所有资源选择机制。(例如当所述UE处于第二SL状态时应用此条件)
◆所述资源池u配置了用于传输HARQ反馈的资源。(例如当当前的逻辑信道配置为使能HARQ反馈时应用此条件)
可选地，若所述候选“资源池集合”U cand，2是空集，则将所述资源池u current，2确定为一个预定义或配置或预配置的资源池(例如记为u fallback，2)。可选地，u fallback，2与所述UE所处的SL状态有关。可选地，u fallback，2与当前的逻辑信道是否配置为使能HARQ反馈有关。
可选地，若所述候选“资源池集合”U cand，2是空集，则将所述资源池u current，2确定为所述资源池集合U mode2中的任意一个资源池。
可选地，若所述候选“资源池集合”U cand，2是空集，则将所述资源池u current，2确定为所述资源池集合U mode2，legacy中的任意一个资源池。
可选地，若所述候选“资源池集合”U cand，2是空集，则将所述资源池u current，2确定为所述资源池集合U mode2，new中的任意一个资源池。
可选地，所述资源池u current，2是从所述候选“资源池集合”U cand，2中选择(例如，随机选择)的任意一个资源池。
可选地，若所述UE处于第一SL状态，则所述资源池u current，2是从所述候选“资源池集合”U cand，2(例如，第一SL状态所对应的候选“资 源池集合”U cand，2)中选择(例如，随机选择)的任意一个资源池。
可选地，若所述UE处于第二SL状态，则所述资源池u current，2是从所述候选“资源池集合”U cand，2(例如，第二SL状态所对应的候选“资源池集合”U cand，2)中选择(例如，随机选择)的任意一个资源池。
可选地，所述资源池u current，2可以根据所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000182
确定。例如，记所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000183
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000184
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000185
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000186
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000187
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000188
则所述资源池u current，2是从所述集合
Figure PCTCN2021140768-appb-000189
Figure PCTCN2021140768-appb-000190
中的第一个(例如按从左往右的顺序，又如按从右往左的顺序)非空集合中选择(例如，随机选择)的任意一个资源池。
可选地，若所述UE处于第一SL状态，则所述资源池u current，2可以根据所述“第一资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000191
Figure PCTCN2021140768-appb-000192
确定。例如，记所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000193
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000194
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000195
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000196
所述集合U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000197
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000198
则所述资源池u current，2是从所述集合
Figure PCTCN2021140768-appb-000199
中的第一个(例如按从左往右的顺序，又如按从右往左的顺序)非空集合中选择(例如，随机选择)的 任意一个资源池。
可选地，若所述UE处于第二SL状态，则所述资源池u current，2可以根据所述“第二资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000200
Figure PCTCN2021140768-appb-000201
确定。例如，记所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000202
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000203
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000204
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000205
所述集合U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000206
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000207
则所述资源池u current，2是从所述集合
Figure PCTCN2021140768-appb-000208
中的第一个(例如按从左往右的顺序，又如按从右往左的顺序)非空集合中选择(例如，随机选择)的任意一个资源池。
可选地，若当前的逻辑信道配置为使能HARQ反馈，则所述资源池u current，2是从所述候选“资源池集合”U cand，2中选择(例如，随机选择)的、配置了用于传输HARQ反馈的资源的任意一个资源池。
可选地，若当前的逻辑信道配置为去使能HARQ反馈，则所述资源池u current，2是从所述候选“资源池集合”U cand，2中选择(例如，随机选择)的任意一个资源池。
可选地，若所述UE处于第一SL状态，且当前的逻辑信道配置为使能HARQ反馈，则所述资源池u current，2可以根据所述“第一资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000209
确定。例如，记所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000210
且配置了用于传输HARQ反馈的资源的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000211
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000212
且配置了用于传输HARQ反馈的资源的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000213
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000214
且配置了用于传输HARQ反馈的资源的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000215
则所述资源池u current，2是从所述集合
Figure PCTCN2021140768-appb-000216
中的第一个(例如按从左往右的顺序，又如按从右往左的顺序)非空集合中选择(例如，随机选择)的任意一个资源池。
可选地，若所述UE处于第一SL状态，且当前的逻辑信道配置为去使能HARQ反馈，则所述资源池u current，2可以根据所述“第一资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000217
确定。例如，记所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000218
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000219
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000220
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000221
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000222
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000223
则所述资源池u current，2是从所述集合
Figure PCTCN2021140768-appb-000224
Figure PCTCN2021140768-appb-000225
中的第一个(例如按从左往右的顺序，又如按从右往左的顺序)非空集合中选择(例如，随机选择)的任意一个资源池。
可选地，若所述UE处于第二SL状态，且当前的逻辑信道配置为使能HARQ反馈，则所述资源池u current，2可以根据所述“第二资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000226
确定。例如，记所 述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000227
且配置了用于传输HARQ反馈的资源的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000228
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000229
且配置了用于传输HARQ反馈的资源的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000230
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000231
且配置了用于传输HARQ反馈的资源的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000232
则所述资源池u current，2是从所述集合
Figure PCTCN2021140768-appb-000233
中的第一个(例如按从左往右的顺序，又如按从右往左的顺序)非空集合中选择(例如，随机选择)的任意一个资源池。
可选地，若所述UE处于第二SL状态，且当前的逻辑信道配置为去使能HARQ反馈，则所述资源池u current，2可以根据所述“第二资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000234
确定。例如，记所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000235
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000236
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000237
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000238
所述候选“资源池集合”U cand，2中相应的资源选择机制集合包含
Figure PCTCN2021140768-appb-000239
的所有资源池组成的集合为
Figure PCTCN2021140768-appb-000240
则所述资源池u current，2是从所述集合
Figure PCTCN2021140768-appb-000241
Figure PCTCN2021140768-appb-000242
中的第一个(例如按从左往右的顺序，又如按从右往左的顺序)非空集合中选择(例如，随机选择)的任意一个资源池。
此外，可选地，在步骤S205，确定一个资源选择机制(例如记为 m current，2)。
可选地，为每个逻辑信道分别确定一个资源选择机制。例如，当某个逻辑信道中有SL数据需要传输时，和/或有SL-CSI报告被触发时，和/或其他条件满足时，确定相应的资源选择机制。此时，所述资源选择机制m current，2对应当前的逻辑信道。
可选地，为所有逻辑信道确定一个共同的资源选择机制。
可选地，所述资源选择机制m current，2是从所述资源池u current，2对应的资源选择机制集合(例如M current，2)中选择(例如，随机选择)的任意一个资源选择机制。
可选地，所述资源选择机制m current，2是从所述资源池u current，2对应的资源选择机制集合(例如M current，2)中选择(例如，随机选择)的、所述UE支持的任意一个资源选择机制。
可选地，所述资源选择机制m current，2是从所述资源池u current，2对应的资源选择机制集合(例如M current，2)中选择(例如，随机选择)的最高优先级(例如，根据所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000243
确定的最高优先级)的资源选择机制。
可选地，所述资源选择机制m current，2是从所述资源池u current，2对应的资源选择机制集合(例如M current，2)中选择(例如，随机选择)的、所述UE支持的最高优先级(例如，根据所述“资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000244
确定的最高优先级)的资源选择机制。
可选地，若所述UE处于第一SL状态，则所述资源选择机制m current，2是从所述资源池u current，2对应的资源选择机制集合(例如M current，2)中 选择(例如，随机选择)的最高优先级(例如，根据所述“第一资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000245
确定的最高优先级)的资源选择机制。
可选地，若所述UE处于第一SL状态，则所述资源选择机制m current，2是从所述资源池u current，2对应的资源选择机制集合(例如M current，2)中选择(例如，随机选择)的、所述UE支持的最高优先级(例如，根据所述“第一资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000246
确定的最高优先级)的资源选择机制。
可选地，若所述UE处于第二SL状态，则所述资源选择机制m current，2是从所述资源池u current，2对应的资源选择机制集合(例如M current，2)中选择(例如，随机选择)的最高优先级(例如，根据所述“第二资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000247
确定的最高优先级)的资源选择机制。
可选地，若所述UE处于第二SL状态，则所述资源选择机制m current，2是从所述资源池u current，2对应的资源选择机制集合(例如M current，2)中选择(例如，随机选择)的、所述UE支持的最高优先级(例如，根据所述“第二资源选择机制优先级顺序”
Figure PCTCN2021140768-appb-000248
确定的最高优先级)的资源选择机制。
此外，可选地，在步骤S207，基于所述资源选择机制m current，2和/或所述资源池u current，2执行SL资源分配模式2。
可选地，在本发明的实施例二中，当配置为在SL通信中传输，且有相关数据需要传输时，执行所述步骤S201和/或所述步骤S203和/或所述步骤S205和/或所述步骤S207。
可选地，在本发明的实施例二中，当需要执行与SL资源分配模式2有关的操作时(例如，当需要选择用于一个传输块的传输资源时，或者， 当需要选择用于多个传输块的传输资源时)，执行所述步骤S201和/或所述步骤S203和/或所述步骤S205和/或所述步骤S207。
可选地，在本发明的实施例二中，由RRC层协议实体执行所述步骤S201和/或所述步骤S203和/或所述步骤S205和/或所述步骤S207。
可选地，在本发明的实施例二中，由所述UE的MAC层协议实体执行所述步骤S201和/或所述步骤S203和/或所述步骤S205和/或所述步骤S207。可选地，所述UE的MAC层协议实体对每一个SL进程(或者说SL HARQ进程)分别执行所述步骤S201和/或所述步骤S203和/或所述步骤S205和/或所述步骤S207。
可选地，在本发明的实施例二中，所述随机选择可以是按等概率的方式随机确定(或者说选择)一个集合中的一个元素。
可选地，在本发明的实施例二中，所述
Figure PCTCN2021140768-appb-000249
可以是一个预定义或配置或预配置的值，例如
Figure PCTCN2021140768-appb-000250
又如
Figure PCTCN2021140768-appb-000251
可选地，在本发明的实施例二中，将一个逻辑信道配置为使能HARQ反馈的方式可以是，将相应的参数sl-HARO-FeedbackEnabled-r16的值配置为“enabled”。
可选地，在本发明的实施例二中，将一个逻辑信道配置为去使能HARQ反馈的方式可以是，将相应的参数sl-HARQ-FeedbackEnabled-r16的值配置为“disabled”。
可选地，在本发明的实施例二中，所述“用于传输HARQ反馈的资源”是PSFCH资源。
这样，根据实施例二所述，本发明提供了一种方法，通过灵活设置确定资源池和资源选择机制的规则，使得在SL资源分配模式2中可以按照合适的资源选择机制在合适的资源池中进行资源分配，提高了SL资源分配模式2的性能。
[变形例]
下面，利用图3来说明作为一种变形例的可执行本发明上面所详细描述的用户设备执行的方法的用户设备。
图3是表示本发明所涉及的用户设备UE的框图。
如图3所示，该用户设备UE30包括处理器301和存储器302。处理器301例如可以包括微处理器、微控制器、嵌入式处理器等。存储器302例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器302上存储有程序指令。该指令在由处理器301运行时，可以执行本发明详细描述的由用户设备执行的上述方法。
上文已经结合优选实施例对本发明的方法和涉及的设备进行了描述。本领域技术人员可以理解，上面示出的方法仅是示例性的，而且以上说明的各实施例在不发生矛盾的情况下能够相互组合。本发明的方法并不局限于上面示出的步骤和顺序。上面示出的网络节点和用户设备可以包括更多的模块，例如还可以包括可以开发的或者将来开发的可用于基站、AMF、UPF、MME、S-GW或UE的模块等等。上文中示出的各种标识仅是示例性的而不是限制性的，本发明并不局限于作为这些标识的示例的具体信元。本领域技术人员根据所示实施例的教导可以进行许多变化和修改。本领域技术人员应该理解，数学表达式或数学等式或数学不等式的部分或全部可以进行一定程度的简化或者变换或者重写，例如合并常数项，又如交换两个加法项，又如交换两个乘法项，又如将一个项改变正负号后从等式或不等式的左边移动到右边，又如将一个项改变正负号后从等式或不等式的右边移动到左边，等等；简化或者变换或者重写前后的数学表达式或数学等式或数学不等式可以认为是等同的。
应该理解，本发明的上述实施例可以通过软件、硬件或者软件和硬件两者的结合来实现。例如，上述实施例中的基站和用户设备内部的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路器件、数字电路器件、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
在本发明中，“基站”可以指具有一定发射功率和一定覆盖面积的移动通信数据和/或控制交换中心，例如包括资源分配调度、数据接收发送等功能。“用户设备”可以指用户移动终端，例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。
此外，这里所公开的本发明的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本发明的上述技术方案。当在计算系统的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本发明实施例所述的操作(方法)。本发明的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可读介质上的软件、代码和/或其他数据结构、或者诸如一个或多个ROM或RAM或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本发明实施例所描述的技术方案。
此外，上述每个实施例中所使用的基站设备和终端设备的每个功能模块或各个特征可以由电路实现或执行，所述电路通常为一个或多个集成电路。设计用于执行本说明书中所描述的各个功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)或通用集成电路、现场可编程门阵列(FPGA)或其他可编程逻辑器件、分立的门或晶体管逻辑、或分立的硬件组件、或以上器件的任意组合。通用处理器可以是微处理器，或者所述处理器可以是现有的处理器、控制器、微控制器或状态机。上述通用处理器或每个电路可以由数字电路配置，或者可以由逻辑电路配置。此外，当由于半导体技术的进步，出现了能够替代目前的集成电路的先进技术时，本发明也可以使用利用该先进技术得到的集成电路。
尽管以上已经结合本发明的优选实施例示出了本发明，但是本领域的技术人员将会理解，在不脱离本发明的精神和范围的情况下，可以对本发明进行各种修改、替换和改变。因此，本发明不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。

Claims (5)

  1. 一种由用户设备UE执行的方法，其特征在于包括：
    获取与SL资源分配有关的信息，其中包含一个资源池集合U mode2。以及，
    确定一个资源选择机制m current，1，其中所述资源选择机制m current，1是所述UE支持的、在所述资源池集合U mode2中的至少一个资源池中配置了的一个或多个资源选择机制中的最高优先级的资源选择机制。以及，
    确定一个资源池u current，1，其中所述资源池u current，1是在所述资源池集合U mode2中配置了所述资源选择机制m current，1的任意一个资源池。以及，
    基于所述资源选择机制m current，1和所述资源池u current，1执行SL资源分配模式2。
  2. 根据权利要求1所述的方法，其特征在于，
    若所述UE处于SL节能状态，则所述资源池集合U mode2中的每一个资源池中配置的资源选择机制可以包括部分感测和随机资源选择中的一项或多项。以及，
    若所述UE处于非SL节能状态，则所述资源池集合U mode2中的每一个资源池中配置的资源选择机制可以包括全感测、部分感测和随机资源选择中的一项或多项。
  3. 根据权利要求1所述的方法，其特征在于，
    若所述UE处于SL节能模式，则所述优先级对应的优先级顺序从最高优先级到最低优先级可以是部分感测，随机资源选择。
    若所述UE处于非SL节能模式，则所述优先级对应的优先级顺序从最高优先级到最低优先级可以是全感测，部分感测，随机资源选择。
  4. 根据权利要求1所述的方法，其特征在于，
    所述资源池集合U mode2中至少有一个资源池对应的资源选择机制集合中包含全感测。
  5. 一种用户设备，包括：
    处理器；以及
    存储器，存储有指令，
    其中，所述指令在由所述处理器运行时执行根据权利要求1-4中的任一项所述的方法。
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