WO2022068685A1 - 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
WO2022068685A1
WO2022068685A1 PCT/CN2021/120203 CN2021120203W WO2022068685A1 WO 2022068685 A1 WO2022068685 A1 WO 2022068685A1 CN 2021120203 W CN2021120203 W CN 2021120203W WO 2022068685 A1 WO2022068685 A1 WO 2022068685A1
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WIPO (PCT)
Prior art keywords
harq
optionally
psfch
transmission
ack
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PCT/CN2021/120203
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English (en)
French (fr)
Inventor
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 WO2022068685A1 publication Critical patent/WO2022068685A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to a method performed by a user equipment and the user equipment.
  • the network side (eg, base station, etc.) can allocate one or more PSSCH transmission resources to the UE by configuring and/or activating the "SL configuration license" for the UE, or through DCI.
  • the network side (eg, base station, etc.) may provide the UE with uplink resources (eg, PUCCH resources, or PUSCH resources) for reporting HARQ-ACK information related to the PSSCH transmission.
  • uplink resources eg, PUCCH resources, or PUSCH resources
  • the problems to be solved include that the HARQ-ACK codebook corresponding to the reported HARQ-ACK information can be correctly generated in various situations (including exceptional situations).
  • the problems to be solved include how to efficiently determine the set of search spaces used to detect the DCI format for scheduling PSSCH transmissions, and how to verify the configuration permission for activating and/or deactivating an SL the DCI format (or the PDCCH carrying the DCI format).
  • 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
  • the present invention provides a method performed by a user equipment and the user equipment, by setting the value of the HARQ-ACK information bit and the corresponding priority value in exceptions, so that the reported HARQ-ACK
  • the ACK information completely reflects the HARQ-ACK feedback situation of the direct link, and the priority of the uplink channel carrying the HARQ-ACK information accurately reflects the priority of data transmission on the direct link.
  • a method performed by a user equipment is proposed, which is characterized by comprising: determining one or more PSSCH transmissions with corresponding PSFCH reception occasions, wherein the PSFCH reception occasions end at time slot n, and the corresponding PSFCH reception occasions
  • the timing value of PSFCH to HARQ feedback is k.
  • each of the HARQ-ACK information bits is set to NACK, and the corresponding priority value is set Set to the highest possible priority value.
  • a method performed by a user equipment is proposed, which is characterized by comprising: determining one or more PSSCH transmissions with corresponding PSFCH reception occasions, wherein the PSSCH transmission is performed by the first PDCCH listening occasion The detected first DCI format schedule. and, generating HARQ-ACK information for the PSSCH transmission and multiplexing the HARQ-ACK information on a PUSCH transmission scheduled by the second DCI format detected at the second PDCCH listening occasion . And, if the first PDCCH monitoring occasion starts after the second PDCCH monitoring occasion, then each of the HARQ-ACK information bits is set to NACK, and the corresponding priority value is set to a possible priority The maximum value among the values.
  • a method performed by a user equipment characterized by comprising: determining 0 ACK HARQ-ACK information bits according to one or more detected DCI formats and multiplex the HARQ-ACK information bits on one uplink transmission. and, if the HARQ-ACK information bit Does not correspond to the counter SL allocation indicator field in any of the one or more DCI formats, then each of the HARQ-ACK information bits is set to NACK, and the corresponding priority value is set to the possible priority The maximum value among the level values.
  • the 0 ACK HARQ-ACK information bits correspond to one type-2 HARQ-ACK codebook.
  • the uplink transmission is a PUCCH transmission, or a PUSCH transmission.
  • a method performed by a user equipment is proposed, which is characterized by comprising: acquiring configuration information related to the first search space set pool and one or more RNTIs. And, monitoring PDCCH candidates for detecting the first DCI format set and/or the second DCI format set and/or the third DCI format set in the first time slot in the first search space set pool.
  • the first DCI format set may include DCI format 0_0 and DCI format 1_0 scrambled with C-RNTI or MCS-C-RNTI or CS-RNTI for CRC
  • the second DCI format set may include SL- RNTI or SL-CS-RNTI scrambled DCI format 3_0
  • the third DCI format set may include CRC scrambled with SL-L-CS-RNTI DCI format 3_1
  • the first time slot is in the A time slot in a search space set pool to monitor PDCCH candidates for detecting at least DCI format 0_0 or DCI format 1_0 whose CRC is scrambled with SI-RNTI or RA-RNTI or MsgB-RNTI or P-RNTI.
  • a method performed by a user equipment is proposed, which is characterized by comprising: receiving a first PDCCH, wherein the first PDCCH carries a DCI format 3_0 scrambled with SL-CS-RNTI with a CRC. And, verify whether the first PDCCH is used to release a Type-2 SL configuration license, wherein, if the "HARQ process number” field and the “Frequency resource assignment” field (if any) in the DCI format 3_0 are set to all "1", and the "PSFCH-to-HARQ feedback timing indicator” field (if present) and the "PUCCH resource indicator” field are set to all "0", the verification is considered to be passed.
  • a method performed by a user equipment which is characterized by comprising:
  • 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 setting the value of the HARQ-ACK information bit and the corresponding priority value in the exceptional case, so that the reported HARQ-ACK information completely reflects the HARQ-ACK feedback situation of the direct link, And the priority of the uplink channel carrying the HARQ-ACK information accurately reflects the priority of data transmission on the direct link.
  • the present invention provides a method, by associating the RNTI for scheduling data transmission with the common search space set for scheduling downlink common signaling, so that even if the UE is not configured with a user-specific search space set, it can Data transmissions (eg, DL data transmissions, or SL data transmissions) are scheduled in the set of common search spaces.
  • Data transmissions eg, DL data transmissions, or SL data transmissions
  • the present invention provides a method such that HARQ-ACK need not be provided for such DCI by setting a PUCCH-related field in the DCI used to release a Type-2 SL configuration grant to indicate that no PUCCH resources are provided Feedback improves the efficiency of reporting SL-related HARQ-ACK information on PUCCH.
  • 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 is a flowchart illustrating a method performed by a user equipment according to Embodiment 3 of the present invention.
  • FIG. 4 is a flowchart illustrating a method performed by a user equipment according to Embodiment 4 of the present invention.
  • FIG. 5 is a flowchart illustrating a method performed by a user equipment according to Embodiment 5 of the present invention.
  • FIG. 6 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
  • CA Carrier Aggregation, carrier aggregation
  • CBR Channel Busy Ratio, the channel busy ratio
  • CCE control-channel element, control channel element
  • CORESET control-resource set, control resource set
  • CP Cyclic Prefix, cyclic prefix
  • CP-OFDM Cyclic Prefix Orthogonal Frequency Division Multiplexing, cyclic prefix orthogonal frequency division multiplexing
  • CRB Common Resource Block, common resource block
  • CRC Cyclic Redundancy Check, Cyclic Redundancy Check
  • CSI Channel-state Information, channel state information
  • DCI Downlink Control Information, downlink control information
  • DFN Direct Frane Number, direct frame number
  • DFT-s-OFDM Discrete Fourier Transformation Spread Orthogonal Frequency Division Multiplexing, Discrete Fourier Transform Spread Spectrum Orthogonal Frequency Division Multiplexing
  • DL-SCH Downlink Shared Channel, downlink shared channel
  • DM-RS Also known as DMRS, Demodulation reference signal, demodulation reference signal
  • eMBB Enhanced Mobile Broadband, enhanced mobile broadband communications
  • 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
  • FDD Frequency Division Duplex, frequency division duplex
  • FDRA Frequency Domain Resource Assignment, frequency domain resource allocation
  • GLONASS GLObal NAvigation Satellite System, global navigation satellite system
  • gNB NR Node B, NR Node B
  • GNSS Global Nayigation 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
  • IP Internet Protocol, Internet Protocol
  • LCID Logical Channel ID, logical channel identifier
  • LSB Least Significant Bit, the least significant bit
  • 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
  • MCG Master Cell Group, the main cell group
  • 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
  • MSB Most Significant Bit, the most significant bit
  • mMTC massive Machine Type Communication, large-scale machine type communication
  • NAS Non-Access-Stratum, non-access stratum
  • NDI New Data Indicator, new data indicator
  • NUL Normal Uplink, normal uplink
  • OFDM Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing
  • PBCH Physical Broadcast Channel, physical broadcast channel
  • PCell Primary Cell, the main cell
  • PDCCH Physical Downlink Control Channel, physical downlink control channel
  • PDCP Packet Data Convergence Protocol, Packet Data Convergence Protocol
  • PDSCH Physical Downlink Shared Channel, physical downlink shared channel
  • 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
  • PSCell Primary SCG Cell, the primary SCG cell
  • 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
  • PTAG Primary Timing Advance Group, the main timing advance group
  • PUSCH Physical uplink shared channel, physical uplink shared channel
  • PUCCH Physical uplink control channel, physical uplink control channel
  • QoS Quality of Service, quality of service
  • QZSS Quasi-Zenith Satellite System, Quasi-Zenith Satellite System
  • RAR Random Access Response, random access response
  • RB Resource Block, resource block
  • REG resource-element group, resource element group
  • RF Radio Frequency, radio frequency
  • RLC Radio Link Control, Radio Link Control Protocol
  • Radio-Network Temporary Identifier Radio-Network Temporary Identifier, wireless network temporary identifier
  • 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
  • SCell Secondary Cell, secondary cell
  • SCG Secondary Cell Group, secondary cell group
  • SCI Sidelink Control Information, straight control information
  • SCS Subcarrier Spacing, subcarrier spacing
  • SDAP Service Data Adaptation Protocol, business data adaptation protocol
  • SFN System Frame Number, system frame number
  • 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 SidelinkSynchronisation 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
  • SpCell Special Cell, special cell
  • SRS Sounding Reference Signal, sounding reference signal
  • 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
  • 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
  • Timing Advance Timing Advance
  • TAG Timing Advance Group, timing advance group
  • Transport Block transport block
  • TCP Transmission Control Protocol, Transmission Control Protocol
  • TDD Time Division Duplex, time division duplex
  • TPC Transmit power control, transmit power control
  • 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
  • value set refers to the set of all possible values.
  • a parameter z defined in an information element I may also be referred to as a "data unit” (or “field”) in the information element I, and correspondingly, the information element corresponding to the parameter z Z may also be referred to as the type of the "data unit” (or "field”) z.
  • a sequence of N elements x(0), x(1), ..., x(N-1) can be abbreviated as x(0), ... , x(N-1).
  • the length of a sequence with N elements is N (or the size of the sequence is N).
  • V2X communication V2X SL communication
  • SL V2X communication SL V2X communication
  • V2X communication may be NR SL based V2X communication.
  • V2X communication may be LTE SL based V2X communication.
  • a TDD cell may be configured with one DL carrier, one UL carrier and, optionally, one SUL carrier.
  • the UL carrier may also be referred to as a "non-SUL carrier”.
  • a “non-SUL carrier” can be considered as a kind of "UL carrier" when the context is clear.
  • a TDD cell can be configured with one UL carrier, called a "non-SUL carrier”.
  • a TDD cell may be configured with two UL carriers, one of which is a "non-SUL carrier” and the other is a "SUL carrier”.
  • XX 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
  • RBG RBG
  • RB RBG
  • Multiple "occasions” such as PDCCH listening opportunities, PSSCH transmission opportunities, PSSCH reception opportunities, PSFCH transmission opportunities, PSFCH reception opportunities, etc.
  • a symbol or a time slot, Or a subframe, or a half frame, or a frame, or an arbitrary time domain and/or frequency domain and/or code domain and/or space domain resource, and so on.
  • the cardinality of the set S 1 can be written as
  • cardinality can be used to characterize the size of a set. For example, the cardinality of an empty set is recorded as 0, the cardinality of a set containing a single element is recorded as 1, and the cardinality of a set containing two elements is recorded as 2, and many more.
  • a subset of S1 may be a set of zero or one or more (including all) elements in S1.
  • S 1 -S 2 represents the "difference set" of set S 1 and set S 2 , that is, the set of elements in set S 1 that do not belong to set S 2 .
  • the set S 2 is obtained after performing operations (such as filtering, transforming, etc.) on the elements in the set S 1 , which can be equivalent to directly operating on the original set S 1 to obtain the updated set S 1 .
  • “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”, 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.
  • the offset of one metric value (denoted as x 2 ) relative to another metric value (denoted as x 1 ) may also be referred to as the offset from the latter to the former.
  • the offset of time slot t 2 relative to time slot t 1 may also be referred to as the offset from time slot t 1 to time slot t 2 and vice versa.
  • time slot t may refer to the time slot numbered t.
  • the slots may be numbered within a subframe.
  • the number of a slot in a subframe can be the value of any element in the set ⁇ 0, 1 ⁇ .
  • the time slots may be numbered within a half frame.
  • the number of a slot in a subframe can be the value of any element in the set ⁇ 0, 1, . . . , 9 ⁇ .
  • the time slots may be numbered within the frame.
  • the number of a slot in a subframe can be the value of any element in the set ⁇ 0, 1, . . . , 19 ⁇ .
  • the time slots may be numbered within a frame numbering period (eg, 1024 frames).
  • a frame numbering period eg, 1024 frames.
  • the number of a slot within 1024 frames can be the value of any element in the set ⁇ 0, 1, . . . , 20479 ⁇ .
  • the time slots can be numbered starting from any one time slot and with any number of time slots as a period. For example, some or all of the time slots t 1 , t 2 , . Within a field or frame or frame numbering period (eg 1024 frames).
  • t 1 0 at this time.
  • symbol refers to "OFDM symbol”.
  • the numbering of OFDM symbols may start from 0.
  • the numbered set of OFDM symbols within one slot may be ⁇ 0, 1, . . . , 13 ⁇ .
  • the set of numbers of OFDM symbols in one slot may be ⁇ 0, 1, . . . , 11 ⁇ .
  • the start time of a PDCCH listening occasion refers to the start time of its associated search space set.
  • the end time of a PDCCH listening occasion refers to the end time of its associated search space set.
  • the duration of a PDCCH listening occasion refers to the duration of its associated search space set.
  • the time corresponding to a PDCCH listening opportunity may be in seconds, or in milliseconds, or in symbols, Either the time slot is used as the unit, the subframe is used as the unit, the half frame is used as the unit, or the frame is used as the unit.
  • 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 subchannels may start from 0. For example, if the number of sub-channels configured in the resource pool is Then the numbered set of subchannels can be
  • the numbering of subcarriers may start from 0.
  • the numbered set of subcarriers within one resource block may be ⁇ 0, 1, . . . , 11 ⁇ .
  • the value of a parameter with a size of L bits can be represented by an integer value (such as 0, 1, 2, etc.), or a bit string (bit string corresponding to the integer) can be used string, such as a bit string of length L, such as 'b 0 b 1 ...b L-1 '). in,
  • the first (ie, the leftmost) bit (ie, b 0 ) is the most significant bit
  • the last (ie, the rightmost) bit ) bit (ie b L-1 ) is the least significant bit.
  • L 3
  • the value of the parameter is represented by a bit string as '011'
  • the value of the most significant bit of the parameter is 0, and the integer value corresponding to the parameter is 3.
  • the first (ie, the leftmost) bit (ie, b 0 ) is the least significant bit
  • the last (ie, the rightmost) bit ) bit (ie b L-1 ) is the most significant bit.
  • L 3
  • the value of the parameter is represented by a bit string as '011'
  • the value of the least significant bit of the parameter is 0, and the integer value corresponding to the parameter is 6.
  • ACK may correspond to integer 1
  • NACK may correspond to integer 1.
  • ACK may correspond to integer 1
  • NACK may correspond to integer 0.
  • DCI (or “a DCI”) refers to a DCI transmission.
  • the DCI transmission corresponds to a specific DCI format, or one of one or more specific DCI formats, or an arbitrary DCI format.
  • the DCI transmission may be written as "DCI format 3_0", or "a DCI format 3_0".
  • "scheduled by DCI” can be written as
  • detecting DCI may refer to detecting DCI in one or more given PDCCH listening occasions according to one or more DCI formats.
  • SL-L-CS-RNTI can be replaced by SL Semi-Persistent Scheduling V-RNTI. vice versa.
  • SL transport may refer to one or more of the given items below, or any one of:
  • PSSCH transmission may be replaced by “PSCCH and/or PSSCH transmission”.
  • setting a value for one HARQ-ACK information bit may also be expressed as one of the following:
  • HARQ-ACK priority value for a priority value (e.g. referred to as HARQ-ACK priority value) for one HARQ-ACK information bit (e.g. HARQ-ACK information bits of HARQ-ACK information related to data transmission on the SL link), e.g. as ),
  • the HARQ-ACK priority value may also be referred to as a priority value associated with (or corresponding to) the HARQ-ACK information bits.
  • the HARQ-ACK priority value refers to the HARQ-ACK priority value defined in the applicable protocol layer.
  • the set of HARQ-ACK priority values defined by the first protocol layer is ⁇ 0, 1, 2, 3, 4, 5, 6, 7 ⁇
  • the second protocol layer such as the MAC layer
  • the priority value 0 may correspond to the HARQ-ACK priority value of the second protocol layer
  • the HARQ-ACK priority value of the first protocol layer may correspond to the HARQ-ACK priority value of the second protocol layer.
  • the HARQ-ACK priority value 7 of the first protocol layer may correspond to the HARQ-ACK priority value 8 of the second protocol layer.
  • determine the HARQ-ACK priority value of a HARQ-ACK information bit can also be expressed as "generate the HARQ-ACK priority value of the HARQ-ACK information bits ", or "generate a HARQ-ACK priority value for the HARQ-ACK information bits ".
  • a HARQ-ACK priority value of 0 is generated for the HARQ-ACK information bit.
  • a HARQ-ACK priority value of 7 is generated for the HARQ-ACK information bit.
  • the priority of the HARQ-ACK information bits follows the corresponding HARQ-ACK priority value increase and decrease.
  • the priority of the HARQ-ACK information bits follows the corresponding HARQ-ACK priority value increase and rise.
  • the HARQ-ACK priority value can be one of the following:
  • the HARQ-ACK priority value corresponding to the one or more HARQ-ACK information bits respectively is used to determine the priority value of the UL transmission carrying the one or more HARQ-ACK information bits (for example, note the The priority value of UL transmission is ).
  • the priority value For prioritization between the UL transmission and an SL transmission (eg, when the UL transmission and the SL transmission overlap in time). For example, if the UE cannot perform the UL transmission and the SL transmission simultaneously, or cannot perform the UL transmission and the SL transmission simultaneously within a serving cell, the UE only transmits the higher of the two priority. in,
  • the priority of the corresponding SL transmission is determined by the "Priority" field in its associated SCI.
  • the priority value of the SL transmission is determined as the value of the "Priority” field.
  • the priority value of the SL transmission is determined as the value of the "Priority" field plus 1.
  • the priority value of the UL transmission and the SL transmission is higher in priority.
  • a higher priority value in the UL transmission and the SL transmission has a lower priority.
  • the UL transmission may be a PUCCH transmission.
  • the UL transmission may be a PUSCH transmission.
  • the priority value is the minimum value among the HARQ-ACK priority values of all HARQ-ACK information bits multiplexed on the UL transmission.
  • the priority value is the maximum value among the HARQ-ACK priority values of all HARQ-ACK information bits multiplexed on the UL transmission.
  • the priority value can be one of the following:
  • the first default HARQ-ACK value (denoted as vdefault for example) may be defined in one or more of the following ways:
  • ⁇ v default is a predefined value. For example, ACK, or NACK.
  • ⁇ v default is a configured value.
  • ⁇ v default is a preconfigured value.
  • the first default HARQ-ACK priority value (eg denoted as p default ) may be defined in one or more of the following ways:
  • ⁇ p default is a predefined value. For example, 0, like 1, like 2, like 3, like 4, like 5, like 6, like 7, like 8, like 9, like 10, like 11, like 12 , like 13, like 14, like 15, like 16.
  • ⁇ p default is a maximum priority value.
  • the value of the largest element in the set of HARQ-ACK priority values, or the largest value of all possible HARQ-ACK priority values, or the largest value of all applicable HARQ-ACK priority values or The maximum value of a set of predefined HARQ-ACK priority values, or the maximum value of a set of configured HARQ-ACK priority values, or the maximum value of a set of preconfigured HARQ-ACK priority values, such as 7 in ⁇ 0, 1, 2, 3, 4, 5, 6, 7 ⁇ , and 8 in ⁇ 0, 1, 2, 3, 4, 5, 6, 7, 8 ⁇ , and ⁇ 0 , 9 in 1, 2, 3, 4, 5, 6, 7, 8, 9 ⁇ , and as in ⁇ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ⁇ 10, another example is 11 in ⁇ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ⁇ , another example is ⁇ 0, 1, 2, 3, 4, 5, 6, 12 in 7, 8, 9, 10, 11, 12 ⁇ , and 13 in ⁇ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
  • ⁇ p default is a minimum priority value.
  • the value of the smallest element in the set of HARQ-ACK priority values, or the smallest value of all possible HARQ-ACK priority values, or the smallest value of all applicable HARQ-ACK priority values or The minimum value of a set of predefined HARQ-ACK priority values, or the minimum value of a set of configured HARQ-ACK priority values, or the minimum value of a set of preconfigured HARQ-ACK priority values, such as 0 in ⁇ 0, 1, 2, 3, 4, 5, 6, 7 ⁇ , 0 in ⁇ 0, 1, 2, 3, 4, 5, 6, 7, 8 ⁇ , and ⁇ 0 , 0 in 1, 2, 3, 4, 5, 6, 7, 8, 9 ⁇ , as in ⁇ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ⁇ 0, another example is 0 in ⁇ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ⁇ , another example is ⁇ 0, 1, 2, 3, 4, 5, 6, 0 in 7, 8, 9, 10, 11, 12 ⁇ , and 0 in ⁇ 0, 1, 2, 3, 4, 5,
  • ⁇ p default is a configured value.
  • ⁇ p default is a preconfigured value.
  • the parameter s1-PSFCH-ToPUCCH-CG-Type1 is used to indicate that the PSFCH (or PSFCH transmission occasion, or PSFCH reception occasion) associated with the last PSSCH resource of each period of the corresponding SL configuration grant corresponds to the report
  • the offset between the PUCCH (or PUSCH) of the HARQ-ACK information (eg, in units of slots).
  • the parameter s1-N1PUCCH-AN is used to indicate the PUCCH resource permitted by the corresponding SL configuration, or the HARQ resource for the PUCCH.
  • the parameter s1-N1PUCCH-AN may be an identifier for referencing or pointing to the actual PUCCH resource configured by the parameter s1-PUCCH-Config.
  • 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.
  • 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 can 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 called SL-SSID, or Called 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 through the parameter masterInformationBlockSidelink.
  • SL SSID Sidelink Synchronization Identity, or Sidelink Synchronization Identifier, straight-line synchronization signal identifier, or called SL-SSID, or Called SSID-SL, or SLSSID, or SLSS
  • 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) with a length of within the S-SSB period of 16 frames S-SSBs, where the number (or index) is i S-SSB
  • 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 time domain resources and/or frequency domain resources configured for the S-SSB in the SL carrier correspond to candidate S-SSBs (or referred to as S-SSB candidates).
  • S-SSB candidates On the time domain and/or frequency domain resources corresponding to a candidate S-SSB, there may be one or more S-SSB transmissions simultaneously (eg, from different UEs), or there may not be any S-SSB transmission.
  • a time slot configured with S-SSB (or configured with S-SSB resources, or configured with candidate S-SSB, or configured with candidate S-SSB resources) can also be called configured with SLSS (or Said time slot configured with SLSS resource). vice versa.
  • 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, and 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 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).
  • the set of time slots in a resource pool can be denoted as ⁇ r 0 , r 1 , r 2 , ... ⁇ .
  • the allocation of resources related to SL operations can be classified as follows:
  • 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 performs sensing (sensing) on 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).
  • a "PSSCH transmission occasion” may be one or more time-domain and/or frequency-domain and/or code-domain resources associated with (eg used by one or more PSSCH transmissions and/or receptions) PSSCH transmission and/or reception. For example, one of the following:
  • the "PSSCH transmission occasion” may also be referred to as the "PSCCH-PSSCH transmission occasion”.
  • PSSCH transmission opportunity can only be applied to one resource pool (that is, “PSSCH transmission opportunity” is defined separately in each resource pool), or it can be applied to multiple resource pools (for example, one "PSSCH transmission opportunity” can include multiple time domain and/or frequency domain and/or code domain resources within the resource pool).
  • One PSSCH transmission occasion may be used for one "candidate PSSCH transmission".
  • the PSSCH transmission occasion may be referred to as an "occasion for candidate PSSCH transmission" (occasion for candidate PSSCH transmission).
  • a "candidate PSSCH transmission” may represent any actual PSSCH transmission on the corresponding PSSCH transmission occasion.
  • a "PSSCH reception occasion” may be one or more time-domain and/or frequency-domain and/or code-domain resources associated with (eg used by one or more PSSCH transmissions and/or receptions) PSSCH transmission and/or reception. For example, one of the following:
  • PSSCH reception timing may also be referred to as "PSCCH-PSSCH reception timing”.
  • PSSCH reception opportunity can only be applied to one resource pool (that is, the "PSSCH reception opportunity” is defined in each resource pool), or it can be applied to multiple resource pools (for example, a "PSSCH reception opportunity” can include multiple time domain and/or frequency domain and/or code domain resources within the resource pool).
  • 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).
  • PSSCH transmission opportunity and PSSCH reception opportunity can be considered to be defined from the perspectives of TX UE and RX UE respectively.
  • a "PSSCH transmission opportunity” can be regarded as a "PSSCH reception opportunity” from the perspective of RX UE
  • a "PSSCH reception opportunity” can be regarded as a "PSSCH transmission opportunity” from the perspective of the TX UE.
  • 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 ).
  • Other SL symbols of one PSFCH slot can be used to transmit other SL signals/channels, such as PSCCH, PSSCH, etc.
  • timeslots (eg, such timeslots are called "PSSCH timeslots") may be associated with one PSFCH timeslot.
  • PSSCH timeslots For example, the association can be as follows:
  • ⁇ Described PSSCH slots are consecutive slots in the resource pool.
  • the PSFCH slot is located in the resource pool for at least that PSSCH slot
  • time slot rn +5 is a PSFCH time slot in the resource pool
  • time slot rn +1 , time slot rn +2 and time slot rn + in the resource pool 3 may be associated to the PSFCH slot rn +5 .
  • the value of can be related to the corresponding PSFCH slot. For example, for one or more PSFCH slots within a resource pool, For other PSFCH slots in the resource pool,
  • the PSFCH resources in a resource pool can correspond to a size of A set of PRBs (for example, a set of continuous PRBs, or a set of partially or completely discontinuous PRBs). in, It can be configured through the parameter rbSetPSFCH, or through the parameter sl-PSFCH-RB-Set.
  • the PSFCH resources in a resource pool can correspond to a cyclic shift pair. in, It can be configured or instructed by higher layer protocols (eg by parameter sl-NumMuxCS-Pair).
  • time slot i in a PSFCH time slot, record the PSFCH time slot associated with the The number of PSSCH time slots is i, and the number of the resource pool The number of the sub-channels is j, and the The numbers of the PRBs used for PSFCH are Then time slot i and subchannel j can correspond to the PRB range (or PRB set, where the number of PRBs is represented by an interval) in
  • the corresponding PSFCH resources can be occupied PRBs, of which, The value of can be an integer.
  • the value of can be an integer.
  • the A PRB can be composed of the PRB range corresponding to time slot i and subchannel j, the PRB range corresponding to time slot i and subchannel j+1, ..., time slot i and subchannel Corresponding PRB range composition.
  • said PRBs can correspond to a "PSFCH resource" (PSFCH resource), and its index (or number) can be as follows: The PRB index (or number) of each PRB is indexed (or numbered) in increasing order, and then A cyclic shift pair of cyclic shift pairs is indexed (or numbered) in increasing order of indices (or numbers). It can be seen that a "PSFCH resource" may correspond to a specific combination of time domain resources, frequency domain resources and code domain resources.
  • a "PSFCH transmission occasion” may be one or more time-domain and/or frequency-domain and/or related to (eg used by one or more PSFCH transmission and/or reception) PSFCH transmissions and/or receptions or code domain resources, for example, one of the following:
  • one or more symbols associated with a PSFCH transmission e.g. the last three SL symbols in a PSFCH slot, also the symbols used to transmit the PSFCH in a PSFCH slot (e.g. the penultimate SL symbol), and For example, the symbol used for transmitting PSFCH in one PSFCH slot (eg, the second-to-last SL symbol) and the symbol used for AGC (eg, the third-to-last SL symbol), etc.).
  • one or more symbols associated with a PSFCH reception e.g. the last three SL symbols in a PSFCH slot, also the symbols used to transmit the PSFCH in a PSFCH slot (e.g. the penultimate SL symbol), and For example, the symbol used for transmitting PSFCH in one PSFCH slot (eg, the second-to-last SL symbol) and the symbol used for AGC (eg, the third-to-last SL symbol), etc.).
  • Time domain resources corresponding to one PSFCH resource ⁇ Time domain resources corresponding to one PSFCH resource.
  • Time domain resources and frequency domain resources corresponding to one PSFCH resource are ⁇ Time domain resources and frequency domain resources corresponding to one PSFCH resource.
  • Time domain resources and code domain resources corresponding to a PSFCH resource are ⁇ Time domain resources and code domain resources corresponding to a PSFCH resource.
  • Time domain resources, frequency domain resources and code domain resources corresponding to a PSFCH resource ⁇ Time domain resources, frequency domain resources and code domain resources corresponding to a PSFCH resource.
  • Time domain resources corresponding to one or more PSFCH resources ⁇ Time domain resources corresponding to one or more PSFCH resources.
  • Frequency domain resources corresponding to one or more PSFCH resources ⁇ Frequency domain resources corresponding to one or more PSFCH resources.
  • Time domain resources and frequency domain resources corresponding to one or more PSFCH resources are ⁇ Time domain resources and frequency domain resources corresponding to one or more PSFCH resources.
  • Time domain resources and code domain resources corresponding to one or more PSFCH resources are ⁇ Time domain resources and code domain resources corresponding to one or more PSFCH resources.
  • Frequency domain resources and code domain resources corresponding to one or more PSFCH resources are Frequency domain resources and code domain resources corresponding to one or more PSFCH resources.
  • Time domain resources, frequency domain resources and code domain resources corresponding to one or more PSFCH resources are ⁇ Time domain resources, frequency domain resources and code domain resources corresponding to one or more PSFCH resources.
  • PSFCH transmission opportunity can only be applied to one resource pool (that is, “PSFCH transmission opportunity” is defined in each resource pool respectively), or it can be applied to multiple resource pools (for example, one "PSFCH transmission opportunity” can include multiple time domain and/or frequency domain and/or code domain resources within the resource pool).
  • a "PSFCH reception occasion” may be one or more time-domain and/or frequency-domain and/or related to (eg used by one or more PSFCH transmission and/or reception) PSFCH transmissions and/or receptions or code domain resources, for example, one of the following:
  • one or more symbols associated with a PSFCH transmission e.g. the last three SL symbols in a PSFCH slot, also the symbols used to transmit the PSFCH in a PSFCH slot (e.g. the penultimate SL symbol), and For example, the symbol used for transmitting PSFCH in one PSFCH slot (eg, the second-to-last SL symbol) and the symbol used for AGC (eg, the third-to-last SL symbol), etc.).
  • one or more symbols associated with a PSFCH reception e.g. the last three SL symbols in a PSFCH slot, also the symbols used to transmit the PSFCH in a PSFCH slot (e.g. the penultimate SL symbol), and For example, the symbol used for transmitting PSFCH in one PSFCH slot (eg, the second-to-last SL symbol) and the symbol used for AGC (eg, the third-to-last SL symbol), etc.).
  • Time domain resources corresponding to one PSFCH resource ⁇ Time domain resources corresponding to one PSFCH resource.
  • Time domain resources and frequency domain resources corresponding to one PSFCH resource are ⁇ Time domain resources and frequency domain resources corresponding to one PSFCH resource.
  • Time domain resources and code domain resources corresponding to a PSFCH resource are ⁇ Time domain resources and code domain resources corresponding to a PSFCH resource.
  • Time domain resources, frequency domain resources and code domain resources corresponding to a PSFCH resource ⁇ Time domain resources, frequency domain resources and code domain resources corresponding to a PSFCH resource.
  • Time domain resources corresponding to one or more PSFCH resources ⁇ Time domain resources corresponding to one or more PSFCH resources.
  • Frequency domain resources corresponding to one or more PSFCH resources ⁇ Frequency domain resources corresponding to one or more PSFCH resources.
  • Time domain resources and frequency domain resources corresponding to one or more PSFCH resources are ⁇ Time domain resources and frequency domain resources corresponding to one or more PSFCH resources.
  • Time domain resources and code domain resources corresponding to one or more PSFCH resources are ⁇ Time domain resources and code domain resources corresponding to one or more PSFCH resources.
  • Frequency domain resources and code domain resources corresponding to one or more PSFCH resources are Frequency domain resources and code domain resources corresponding to one or more PSFCH resources.
  • Time domain resources, frequency domain resources and code domain resources corresponding to one or more PSFCH resources are ⁇ Time domain resources, frequency domain resources and code domain resources corresponding to one or more PSFCH resources.
  • PSFCH reception opportunity can only be applied to one resource pool (that is, the "PSFCH reception opportunity” is defined in each resource pool), or it can be applied to multiple resource pools (for example, a "PSFCH reception opportunity” can include multiple time domain and/or frequency domain and/or code domain resources within the resource pool).
  • PSFCH transmission opportunity and PSFCH reception opportunity can be considered to be defined from the perspectives of TX UE and RX UE respectively.
  • a "PSFCH transmission opportunity” can be regarded as a "PSFCH reception opportunity” from the perspective of RX UE
  • a "PSFCH reception opportunity” can be regarded as a "PSFCH transmission opportunity” from the perspective of the TX UE.
  • a PSSCH transmission occasion may have one or more associated (or corresponding) PSFCH reception occasions (for example, when the corresponding resource pool is configured with PSFCH resources).
  • the PSSCH transmission occasion may be referred to as an "occasion for candidate PSSCH transmission with a corresponding PSFCH reception occasion" (occasion for candidate PSSCH transmission with corresponding PSFCH reception occasion(s)).
  • the network side may configure one or more "SL configuration grants" (SL configured grants, or configured SL grants, or simply referred to as SL grants when the context is clear) for the UE (for example, a TX UE), for example Configure through the parameter sl-ConfiguredGrantConfigList.
  • SL configuration grants can be associated with periodic PSSCH transmission resources (or can schedule periodic PSSCH transmission), wherein the corresponding period can be configured through the parameter sl-PeriodCG, and one or more PSSCH can be allocated in each period Transmission resources (or scheduling of one or more PSSCH transmissions).
  • SL configuration licenses can be divided into Type-1 SL configuration licenses (Type 1 SL configured grants, or Type-1 SL configured grants, or SL configured grants rType 1, or SL configured grants Type-1) and Type-2 SL configuration licenses ( Type 2 SL configured grant, or Type-2 SL configured grant, or SL configured grant Type 2, or SL configured grant Type-2), where the resources associated with the former can be configured through semi-static signaling (such as RRC signaling) and /or activation and/or deactivation, the latter associated resources may be configured through semi-static signaling (eg RRC signaling), and the configured resources may be activated and/or deactivated dynamically (eg through DCI).
  • semi-static signaling such as RRC signaling
  • the network side may allocate one or more PSSCH transmission resources (or schedule one or more PSSCH transmissions) to the UE (eg, TX UE) through DCI (eg, DCI format 3_0).
  • This resource allocation method can be called “dynamic grant” (dynamic grant), to distinguish it from “configured grant” (configured grant).
  • the network side may provide (eg, provided by RRC configuration, eg, indicated by DCI) UL resources (eg, PUCCH resources, eg, PUSCH resources) for UEs (eg, TX UEs) for reporting related to SL transmissions
  • UL resources eg, PUCCH resources, eg, PUSCH resources
  • UEs eg, TX UEs
  • the HARQ-ACK information is used to indicate the SL configuration grant or the transmission and/or reception of data and/or control information on the SL resources allocated by the DCI.
  • Such HARQ-ACK information may be referred to as "HARQ-ACK information related to SL transmission reported on UL".
  • the HARQ-ACK information related to the SL transmission reported on the UL may come from (or be based on) one or more receiving and/or transmitting operations of the UE on the direct link, for example including one of the following or Multiple:
  • PSFCH reception (PSFCH reception, or PSFCH receptions). For example, after the TX UE sends the PSSCH on the SL resource indicated by the DCI, the TX UE obtains the HARQ related to the SL transmission reported on the SL by receiving the PSFCH sent by the RX UE on the PSFCH time slot associated with the time slot where the PSSCH is located. - ACK information and thereby determine the corresponding HARQ-ACK information reported on the UL related to the SL transmission.
  • No PSFCH reception (absence of PSFCH reception, or absence of PSFCH receptions). For example, the reception of the PSFCH cannot be performed in a time slot that would otherwise need to receive the PSFCH due to performing other higher priority tasks (eg, performing higher priority UL transmission).
  • the SCI that schedules the data transmission on the direct link indicates that the UE receiving the data transmission is not required to send a HARQ-ACK (eg, HARQ-ACK carried over the PSFCH).
  • the PSCCH and/or PSSCH are not transmitted because the DCI scheduling the corresponding PSCCH and/or PSSCH transmission (eg, DCI format 3_0) is not detected, and accordingly the PSFCH is not received.
  • no PSFCH resource is configured in the corresponding resource pool.
  • the PSFCH is not detected at the corresponding PSFCH reception occasion.
  • the TX UE sends the PSCCH and/or PSSCH on the SL resource indicated by the base station through the DCI.
  • PSCCH and/or PSSCH are not sent because the DCI scheduling the corresponding PSCCH and/or PSSCH transmission (eg, DCI format 3_0) is not detected.
  • the UE may also report HARQ-ACK information related to DL transmission on UL resources (eg, PUCCH resources, or PUSCH resources) (correspondingly, use the HARQ-ACK codebook related to DL transmission) for feedback Transmission and/or reception of data and/or control information on the downlink (e.g., transmission and/or reception status; another example, transmission and/or reception result; another example, transmission not performed; another example, not performed receive; etc.).
  • HARQ-ACK information may be referred to as "HARQ-ACK information related to DL transmission reported on UL”.
  • the HARQ-ACK information related to DL transmission reported on the UL may come from (or be based on) some reception operations of the UE on the downlink, for example, including one or more of the following:
  • the "SPS PDSCH release" indication is indicated in the DCI carried by the PDCCH.
  • the DCI carried by the PDCCH indicates "SCell dormancy".
  • HARQ-ACK information refers to HARQ-ACK information related to SL transmission reported on the UL, unless otherwise specified.
  • the UE reports (or provides) the corresponding HARQ-ACK information in a UL transmission (such as PUCCH transmission, or PUSCH transmission) in time slot n+k .
  • the offset (ie, "k") between the time slot n and the time slot n+k can be called a "timing between the PSFCH and the uplink HARQ feedback" value.
  • ⁇ optionally, is an integer, and E.g, another example Another example,
  • the time slot n and the time slot n+k are numbered according to the time slot used for the UL transmission (ie, according to the SCS and/or CP used for the UL transmission).
  • the SCS and/or CP corresponding to the time slot n and the time slot n+k are respectively the SCS and/or CP used for the UL transmission.
  • the PSFCH reception occasions (or the The time slots where each PSFCH reception opportunity is located) are respectively associated with the same DCI (or the same DCI transmission) scheduled PSSCH transmission.
  • the value of the offset "k” may be one of the sets configured by the parameter sl-PSFCH-ToPUCCH indicated by the "PSFCH-to-HARQ feedback timing indicator" field in the DCI value.
  • the The PSSCH transmissions may be any one of the PSSCH transmissions scheduled by the DCI.
  • the PSFCH reception occasions (or the The time slots where the PSFCH receiving opportunities are located) are respectively associated with the same SL configuration and are scheduled within the same period. PSSCH transmission. in,
  • the offset "k" can be configured through the parameter sl-PSFCH-ToPUCCH-CG-Typel.
  • the offset "k" may be indicated by the "PSFCH-to-HARQ feedback timing indicator" field in the DCI that activates the SL configuration license (e.g. all The indicated value is a value in the set configured by the parameter sl-PSFCH-ToPUCCH).
  • ⁇ It is equal to the number of PSSCH transmissions that are allowed to be scheduled in the same period by the SL configuration.
  • the The PSSCH transmissions may be any one of the PSSCH transmissions that the SL configuration allows to be scheduled in the same period.
  • k is always greater than zero.
  • the UE replaces its value with another predefined or configured or pre-configured value (for example, replaces the value of k with 1).
  • the UE may assume that the start time of the UL transmission resources (eg, PUCCH resources, another example, PUSCH resources) is not earlier than the (N+1) ⁇ (2048+144) ⁇ 2 ⁇ ⁇ ⁇ T c seconds after the end of the last symbol of the last PSFCH reception opportunity among the PSFCH reception opportunities.
  • the start time of the UL transmission resources eg, PUCCH resources, another example, PUSCH resources
  • ⁇ min( ⁇ SL , ⁇ UL ), where ⁇ sL is the SCS configuration of the corresponding SL BWP, ⁇ UL is the SCS configuration of the active uplink BWP (active UL BWP) of a reference cell, where all
  • the reference cell may be the primary cell of the UE (for example, the primary cell in the MCG of the UE, Primary Cell, PCell), or the primary SCG cell (Primary SCG Cell, PSCell) of the UE, or the primary SCG Cell of the UE.
  • a special cell (Special Cell, SPCell), or a PUCCH secondary cell (PUCCH SCell) of the UE, or any cell in the MCG, or any cell in the SCG, or any cell configured by the UE, or all The cell in which the UL transmission is located, or a cell otherwise defined or configured.
  • N is related to ⁇ .
  • N can be predefined as a value of ⁇ 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 ⁇ .
  • N can be predefined as ⁇ 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 ⁇ .
  • N can be predefined as ⁇ 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 ⁇ a value.
  • N can be predefined as ⁇ 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 ⁇ a value in .
  • One or more HARQ-ACK information bits generated (or provided, or reported) by the UE at timeslot n+k may be contained in a "HARQ-ACK codebook" ( Or, an instance of the "HARQ-ACK codebook”).
  • the HARQ-ACK information bits in one HARQ-ACK codebook can be multiplexed on one PUCCH transmission, or multiplexed on one PUSCH transmission.
  • "HARQ-ACK codebook” refers to a HARQ-ACK codebook containing "HARQ-ACK information related to SL transmission reported on UL” .
  • the UE may be configured to report HARQ-ACK information in a Type-1 (Type-1) HARQ-ACK codebook or in a Type-2 (Type-2) HARQ-ACK codebook.
  • the size of the type-1 HARQ-ACK codebook may only depend on semi-static configuration information (such as the configuration information of the RRC layer); the size of the type-2 HARQ-ACK codebook may be dynamically changed (for example, based on detected and described
  • the number of DCIs associated with the HARQ-ACK codebook, etc. for example, the number of HARQ-ACK information bits in the Type-2-based HARQ-ACK codebook transmitted on two different PUCCH time slots may be different. If there is PUSCH transmission on the time slot where the PUCCH resource is located, the UE may multiplex the HARQ-ACK information on the PUSCH transmission.
  • the HARQ-ACK information in one HARQ-ACK codebook may be associated with only one SL configuration grant.
  • HARQ-ACK information in a HARQ-ACK codebook may be associated with one or more SL configuration grants.
  • HARQ-ACK information in a HARQ-ACK codebook can be associated with one or more DCIs.
  • each of the one or more DCIs may be used for one or more purposes related to data and/or control information sent on the direct link, including, for example, one or more of the following:
  • the CRC of the DCI is scrambled using SL-RNTI or SL-CS-RNTI.
  • SL configuration license eg Type-2 SL configuration license
  • SL configuration licenses eg Type-2 SL configuration licenses
  • 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: step S101 and step S103.
  • step S101 information related to SL transmission and/or reception is determined.
  • the "information related to SL transmission and/or reception" may be PSSCH transmissions (eg denoted as ),and / or PSSCH transmission occasions (for example, denoted as ),and / or PSSCH transmissions (or the time slots in which the PSSCH transmission opportunities are located respectively (for example, denoted as ),and / or PSFCH reception occasions (for example, denoted as ),and / or The time slots where each PSFCH receiving opportunity is located (for example, denoted as ).
  • PSSCH transmissions eg denoted as
  • PSSCH transmission occasions for example, denoted as
  • PSSCH transmissions or the time slots in which the PSSCH transmission opportunities are located respectively
  • PSFCH reception occasions for example, denoted as
  • the time slots where each PSFCH receiving opportunity is located for example, denoted as ).
  • the PSSCH transmission occasion is the PSSCH transmission The respective PSSCH transmission occasions.
  • the time slot is the PSSCH transmission (or the PSSCH transmission occasion ) respectively in the time slot.
  • the PSFCH reception occasion is the PSSCH transmission (or the PSSCH transmission occasion ) corresponding PSFCH reception timings respectively.
  • the time slot is the PSFCH reception opportunity respective time slots.
  • the PSSCH transmission It can be expressed as "there is a corresponding (or associated) PSFCH reception opportunity. PSSCH transmission ".
  • the PSFCH receiving occasion Can be expressed as "there is a corresponding (or associated) PSSCH transmission The PSFCH reception timing ".
  • the "maximum number of reserved SL transmissions" may be a configured or pre-configured value (for example, configured through the parameter sl_MaxNumPerReserve). For example, if the parameter sl_MaxNumPerReserve is equal to 2, the equal to 1 or 2. For another example, if the parameter sl_MaxNumPerReserve is equal to 3, then the Equal to 1 or 2 or 3.
  • the is a predefined constant.
  • the is a configured or preconfigured value.
  • the PSSCH transmission opportunity belongs to the first PSSCH transmission occasion set (for example, denoted as ).
  • the PSSCH transmission opportunity appear in chronological order, that is, a 0 is the earliest PSSCH transmission opportunity, is the latest PSSCH transmission opportunity.
  • the PSSCH transmission opportunity vary.
  • the PSSCH transmission opportunity One or more of them can be the same.
  • a 0 a 1
  • the time slot appear in chronological order, i.e. is the earliest time slot, is the latest time slot.
  • the time slot appear in reverse chronological order, i.e. is the latest time slot, is the earliest time slot.
  • the time slot vary.
  • the time slot One or more of them can be the same. E.g, (Optionally, at this point it can be considered that only in time slot). Another example, (Optionally, at this point it can be considered that corresponding to the same time slot).
  • the PSFCH receiving occasion belongs to the first PSFCH reception occasion set (for example, denoted as ).
  • the PSFCH receiving occasion appear in chronological order, that is, b 0 is the earliest PSFCH reception opportunity, is the latest PSFCH reception opportunity.
  • the PSFCH receiving occasion vary.
  • the PSFCH receiving occasion One or more of them can be the same.
  • b 0 b 1
  • the time slot appear in chronological order, i.e. is the earliest time slot, is the latest time slot.
  • the time slot appear in reverse chronological order, i.e. is the latest time slot, is the earliest time slot.
  • the time slot vary.
  • the time slot One or more of them can be the same. E.g, (Optionally, at this point it can be considered that only in time slot). Another example, (Optionally, at this point it can be considered that corresponding to the same time slot).
  • the PSSCH transmission (or the PSSCH transmission occasion or the PSFCH reception timing ) corresponds to the same "PSFCH-to-HARQ-feedback timing" (PSFCH-to-HARQ-feedback timing) value, for example, denoted as k. in,
  • the unit of k may be a time slot.
  • the first DCI corresponds to DCI format 3_0.
  • the k is indicated by the first DCI (eg, by the PSFCH-to-HARQ_feedback timing indicator field in the first DCI).
  • ⁇ optionally, the Indicated by the first DCI (eg, by a Time resource assignment field in the first DCI).
  • the PSSCH transmission Corresponds to (or belongs to) the first type-2 SL configuration permission, or the PSSCH transmission Grant scheduling, or the PSSCH transmission, configured by the first type-2 SL Resources are provided (or allocated) by the first type-2 SL configuration license.
  • the first type-2 SL configuration license is activated by a second DCI.
  • the second DCI corresponds to DCI format 3_0.
  • the k is indicated by the second DCI (eg, indicated by the PSFCH-to-HARQ_feedback timing indicator field in the second DCI).
  • the Indicated by the second DCI (eg, by a Time resource assignment field in the second DCI).
  • the PSSCH transmission Corresponds to (or belongs to) the first type-1 SL configuration license, or the PSSCH transmission Grant scheduling, or the PSSCH transmission, is configured by the first type-1 SL Resources are provided (or allocated) by the first type-1 SL configuration license.
  • the k is provided by a parameter of the first type-1 SL configuration permission (eg provided by the parameter s1-PSFCH-ToPUCCH-CG-Type1).
  • the Provided by the parameters of the first type-1 SL configuration permission (eg provided by the parameter sl-TimeResourceCG-Type1).
  • the PSSCH transmission (or the PSSCH transmission occasion or the PSFCH reception timing ) respectively correspond to the "timing of PSFCH to HARQ feedback" value in,
  • the unit of can be a time slot.
  • ⁇ optionally, Zero or one or more (eg, all) of may be equal.
  • the PSSCH transmission It can be divided into three parts, wherein the first part (for example, containing zero PSSCH transmissions, or containing one PSSCH transmission, or containing multiple PSSCH transmissions) is scheduled by the first DCI, and the second part (for example, containing zero PSSCH transmissions) is scheduled by the first DCI.
  • Transmission, for example, containing one PSSCH transmission, or containing multiple PSSCH transmissions) corresponds to the first type-2 SL configuration grant
  • the third part for example, containing zero PSSCH transmissions, or containing one PSSCH transmission, or containing Multiple PSSCH transmissions
  • the first part contains zero PSSCH transmissions, the first part does not exist.
  • the second part contains zero PSSCH transmissions, the second part does not exist.
  • the third part contains zero PSSCH transmissions, the third part does not exist.
  • the k is indicated by the first DCI (eg, by the PSFCH-to-HARQ_feedback timing indicator field in the first DCI), or by the second DCI Indicated (e.g. by the PSFCH-to-HARQ_feedback timing indicator field in the second DCI), or provided by a parameter of the first type-1 SL configuration grant (e.g., by the parameter sl-PSFCH-ToPUCCH-CG -Type1 provides).
  • the first DCI eg, by the PSFCH-to-HARQ_feedback timing indicator field in the first DCI
  • the second DCI Indicated e.g. by the PSFCH-to-HARQ_feedback timing indicator field in the second DCI
  • a parameter of the first type-1 SL configuration grant e.g., by the parameter sl-PSFCH-ToPUCCH-CG -Type1 provides.
  • the Indicated by the DCI e.g., the first DCI, also, the second DCI
  • Type-1 SL configuration grant e.g., the first Type-1 SL configuration grant
  • the Indicated by the first DCI eg, by the Time resource assignment field in the first DCI
  • the second DCI eg, by the Time resource assignment field in the second DCI
  • a parameter of the first type-1 SL configuration license eg provided by the parameter sl-TimeResourceCG-Type1
  • step S103 HARQ-ACK information is reported.
  • the HARQ-ACK information is the HARQ-ACK information reported for the "information related to SL transmission and/or reception".
  • the HARQ-ACK information is included (or multiplexed) in one HARQ-ACK codebook (for example, a type-1 HARQ-ACK codebook, another example, a type-2 HARQ-ACK codebook) middle.
  • one HARQ-ACK codebook for example, a type-1 HARQ-ACK codebook, another example, a type-2 HARQ-ACK codebook
  • the HARQ-ACK information includes HARQ-ACK information bits.
  • ⁇ optionally, is a predefined constant.
  • ⁇ optionally, is a configured value.
  • ⁇ optionally, is a preconfigured value.
  • the HARQ-ACK information is reported only in the first HARQ-ACK codebook for the "information related to SL transmission and/or reception".
  • the first HARQ-ACK codebook is included (or carried) in one UL transmission in time slot n+k. in,
  • the UL transmission may be a PUCCH transmission.
  • the UL transmission may be a PUSCH transmission.
  • the first HARQ-ACK codebook is a type-1 HARQ-ACK codebook.
  • the first HARQ-ACK codebook is a type-2 HARQ-ACK codebook.
  • the first HARQ-ACK codebook is based on the first PSSCH transmission occasion set Generated.
  • the first HARQ-ACK codebook is based on the first PSFCH reception occasion set Generated.
  • the result of the PSFCH reception on the PSFCH determines the value of the corresponding HARQ-ACK information bit (eg, according to the PSFCH reception result on one or more PSFCH reception occasions, the value of a certain corresponding HARQ-ACK information bit is set to ACK. For example, according to the PSFCH reception results at one or more PSFCH reception occasions, the value of a certain corresponding HARQ-ACK information bit is set as NACK).
  • the priority value of determines the priority value of the corresponding HARQ-ACK information bit.
  • the first HARQ-ACK information reporting condition is satisfied, the first HARQ-ACK information generating operation is performed. in,
  • the first HARQ-ACK information reporting condition may include one or more of the following (in any combination of "and” or “or” if applicable):
  • the PSSCH transmission Scheduled by a DCI (eg, the first DCI), and the DCI does not provide PUCCH resources.
  • a DCI corresponding to a Type-2 SL configuration grant (eg, the first Type-2 SL configuration grant) and the DCI (eg, the second DCI) that activates the Type-2 SL configuration grant does not provide PUCCH resources.
  • the PSSCH transmission Corresponds to one type-1 SL configuration grant (eg, the first type-1 SL configuration grant), and the type-1 SL configuration grant does not provide PUCCH resources.
  • the PSSCH transmission Corresponding DCI (if any.
  • the first DCI) and/or Type-2 SL configuration license if any.
  • the first type-2 SL configuration license if any.
  • type -1 SL configuration grant if any.
  • the first type -1 SL configuration grant does not provide PUCCH resources.
  • the associated one or more (eg, all) SCIs indicate that HARQ-ACK feedback is disabled for their scheduled PSSCH transmissions (eg, by setting the value of the "HARQ feedback enabled/disabled indicator" field to 1).
  • the HARQ-ACK information does not correspond to any PSSCH transmission.
  • the HARQ-ACK information does not correspond to any PSFCH reception opportunity.
  • the HARQ-ACK information does not correspond to any PSFCH reception.
  • the first HARQ-ACK information generation operation may include one or more of the following:
  • each of the HARQ-ACK information bits (or, in other words, the HARQ-ACK value) is set to the first default HARQ-ACK value.
  • the priority value of each of the HARQ-ACK information bits is set to the first default HARQ-ACK priority value.
  • n may be defined in one of the following ways:
  • n is equal to any of the .
  • n is equal to any of the .
  • the PSSCH transmission The corresponding values of n+k are equal.
  • a combination of a predefined value of the PUCCH resource indicator field in the DCI (for example, DCI format 3_0) and a predefined value of the PSFCH-to-HARQ feedback timing indicator field Indicates that the DCI does not provide PUCCH resources. For example, if the value of the PUCCH resource indicator field in the DCI and the value of the PSFCH-to-HARQ feedback timing indicator field are both 0, the DCI does not provide PUCCH resources.
  • the type-1 SL configuration license if a type-1 SL configuration license satisfies the first type-1 SL configuration license condition, the type-1 SL configuration license does not provide PUCCH resources.
  • the first type-1 SL configuration permission conditions may include one or more of the following (in any combination of "and” or "or” where applicable):
  • the parameter sl-PSFCH-ToPUCCH-CG-Type1 of the Type-1 SL configuration permission is configured.
  • the value of the parameter sl-PSFCH-ToPUCCH-CG-Type1 of the Type-1 SL configuration permission is a predefined value (eg 0).
  • the parameter sl-PSFCH-ToPUCCH-CG-Type1 of the Type-1 SL configuration permission is not configured.
  • the value of the parameter sl-N1PUCCH-AN of the Type-1 SL configuration permission is a predefined value (eg 0).
  • the parameter sl-N1PUCCH-AN of the Type-1 SL configuration permission is not configured.
  • the present invention provides a method, by setting the value of the HARQ-ACK information bit and the corresponding priority value in an exceptional case, so that the reported HARQ-ACK information completely reflects the direct link
  • the HARQ-ACK feedback situation and the priority of the uplink channel carrying the HARQ-ACK information accurately reflect the priority of data transmission on the direct link.
  • 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: Step S201 and Step S203.
  • step S201 information related to SL transmission and/or reception is determined.
  • the "information related to SL transmission and/or reception" may be PSSCH transmissions (eg denoted as ),and / or PSSCH transmission occasions (for example, denoted as ),and / or PSSCH transmissions (or the time slots in which the PSSCH transmission opportunities are located respectively (for example, denoted as ),and / or PSFCH reception occasions (for example, denoted as ),and / or The time slots where each PSFCH receiving opportunity is located (for example, denoted as ).
  • PSSCH transmissions eg denoted as
  • PSSCH transmission occasions for example, denoted as
  • PSSCH transmissions or the time slots in which the PSSCH transmission opportunities are located respectively
  • PSFCH reception occasions for example, denoted as
  • the time slots where each PSFCH receiving opportunity is located for example, denoted as ).
  • the PSSCH transmission occasion is the PSSCH transmission The respective PSSCH transmission occasions.
  • the time slot is the PSSCH transmission (or the PSSCH transmission occasion ) respectively in the time slot.
  • the PSFCH reception occasion is the PSSCH transmission (or the PSSCH transmission occasion ) corresponding PSFCH reception timings respectively.
  • the time slot is the PSFCH reception opportunity respective time slots.
  • the PSSCH transmission It can be expressed as "there is a corresponding (or associated) PSFCH reception opportunity. PSSCH transmission ".
  • the PSFCH receiving occasion Can be expressed as "there is a corresponding (or associated) PSSCH transmission The PSFCH reception timing ".
  • the "maximum number of reserved SL transmissions" may be a configured or pre-configured value (for example, configured through the parameter sl_MaxNumPerReserve). For example, if the parameter sl_MaxNumPerReserve is equal to 2, the equal to 1 or 2. For another example, if the parameter sl_MaxNumPerReserve is equal to 3, then the Equal to 1 or 2 or 3.
  • the is a predefined constant.
  • the is a configured or preconfigured value.
  • the PSSCH transmission opportunity belongs to the first PSSCH transmission occasion set (for example, denoted as ).
  • the PSSCH transmission opportunity appear in chronological order, that is, a 0 is the earliest PSSCH transmission opportunity, is the latest PSSCH transmission opportunity.
  • the PSSCH transmission opportunity vary.
  • the PSSCH transmission opportunity One or more of them can be the same.
  • a 0 a 1
  • the time slot appear in chronological order, i.e. is the earliest time slot, is the latest time slot.
  • the time slot appear in reverse chronological order, i.e. is the latest time slot, is the earliest time slot.
  • the time slot vary.
  • the time slot One or more of them can be the same. E.g, (Optionally, at this point it can be considered that by only time slot). Another example, (Optionally, at this point it can be considered that corresponding to the same time slot).
  • the PSFCH receiving occasion belongs to the first PSFCH reception occasion set (for example, denoted as ).
  • the PSFCH receiving occasion appear in chronological order, that is, b 0 is the earliest PSFCH reception opportunity, is the latest PSFCH reception opportunity.
  • the PSFCH receiving occasion vary.
  • the PSFCH receiving occasion One or more of them can be the same.
  • b 0 b 1
  • the time slot appear in chronological order, i.e. is the earliest time slot, is the latest time slot.
  • the time slot appear in reverse chronological order, i.e. is the latest time slot, is the earliest time slot.
  • the time slot vary.
  • the time slot One or more of them can be the same. E.g, (Optionally, at this point it can be considered that by only time slot). Another example, (Optionally, at this point it can be considered that corresponding to the same time slot).
  • the PSSCH transmission (or the PSSCH transmission occasion or the PSFCH reception timing ) corresponds to the same "PSFCH-to-HARQ-feedback timing" (PSFCH-to-HARQ-feedback timing) value, for example, denoted as k. in,
  • the unit of k may be a time slot.
  • the first DCI corresponds to DCI format 3_0.
  • the first DCI is transmitted in the first PDCCH monitoring occasion (or the UE detects the first DCI in the first PDCCH monitoring occasion).
  • the k is indicated by the DCI (eg, by the PSFCH-to-HARQ_feedback timing indicator field in the DCI).
  • ⁇ optionally, the Indicated by the DCI (eg, by the Time resource assignment field in the DCI).
  • the PSSCH transmission (or the PSSCH transmission occasion or the PSFCH reception timing ) respectively correspond to the "timing of PSFCH to HARQ feedback" value in,
  • the unit of can be a time slot.
  • ⁇ optionally, Zero or one or more (eg, all) of may be equal.
  • ⁇ optionally, where applicable, the are respectively indicated by the DCI associated with the corresponding PSSCH transmission (eg, by the PSFCH-to-HARQ_feedback timing indicator field in the DCI).
  • step S203 HARQ-ACK information is generated.
  • the HARQ-ACK information is HARQ-ACK information generated for the "information related to SL transmission and/or reception".
  • the HARQ-ACK information includes HARQ-ACK information bits.
  • ⁇ optionally, is a predefined constant.
  • ⁇ optionally, is a configured value.
  • ⁇ optionally, is a preconfigured value.
  • the HARQ-ACK information is included (or multiplexed) in the first HARQ-ACK codebook.
  • the first HARQ-ACK codebook is included (or multiplexed, or carried) in one PUSCH transmission. in,
  • the PUSCH transmission is in time slot n+k.
  • the PUSCH transmission is scheduled by the second DCI.
  • the second DCI corresponds to DCI format 0_0.
  • the second DCI corresponds to DCI format 0_1.
  • the second DCI corresponds to DCI format 0_2.
  • the second DCI is transmitted in the second PDCCH monitoring occasion (or the UE detects the second DCI in the second PDCCH monitoring occasion).
  • the first HARQ-ACK codebook is a type-1 HARQ-ACK codebook.
  • the first HARQ-ACK codebook is a type-2 HARQ-ACK codebook.
  • the first HARQ-ACK codebook is based on the first PSSCH transmission occasion set Generated.
  • the first HARQ-ACK codebook is based on the first PSFCH reception occasion set Generated.
  • the first HARQ-ACK information generation operation is performed.
  • the first PDCCH monitoring condition may include one or more of the following (any combination of "and” or “or” where applicable):
  • the first PDCCH monitoring occasion starts after the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion starts before the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion starts after the start time of the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion starts after the end time of the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion starts before the start time of the second PDCCH monitoring occasion.
  • the first PDCCH listening occasion starts before the end time of the second PDCCH listening occasion.
  • the first PDCCH monitoring occasion starts from the start time of the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion starts from the end time of the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion ends after the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion ends before the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion ends after the start time of the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion ends after the end time of the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion ends before the start time of the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion ends before the end time of the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion ends at the start time of the second PDCCH monitoring occasion.
  • the first PDCCH monitoring occasion ends at the end time of the second PDCCH monitoring occasion.
  • the first HARQ-ACK information generation operation may include one or more of the following:
  • each of the HARQ-ACK information bits (or, in other words, the HARQ-ACK value) is set to the first default HARQ-ACK value.
  • the priority value of each of the HARQ-ACK information bits is set to the first default HARQ-ACK priority value.
  • n may be defined in one of the following ways:
  • n is equal to any of the .
  • n is equal to any of the .
  • the PSSCH transmission The corresponding values of n+k are equal.
  • the present invention provides a method, by setting the value of the HARQ-ACK information bit and the corresponding priority value in an exceptional case, so that the reported HARQ-ACK information completely reflects the direct link
  • the HARQ-ACK feedback situation and the priority of the uplink channel carrying the HARQ-ACK information accurately reflect the priority of data transmission on the direct link.
  • FIG. 3 is a flowchart illustrating a method performed by a user equipment according to Embodiment 3 of the present invention.
  • the steps performed by the user equipment UE include: step S301 and step S303.
  • the PDCCH listening occasions in the first PDCCH monitoring occasion set MD are used to determine the HARQ-ACK information multiplexed in the same time slot (for example, denoted as time slot n ).
  • the elements in the first PDCCH listening occasion set MD are numbered in ascending order of their start times (eg, start times of their associated search space sets).
  • start times eg, start times of their associated search space sets.
  • the start time of the search space set associated with the PDCCH listening occasion set e 0 is earlier (or, not later than) the start time of the search space set associated with the PDCCH listening occasion set e 1 .
  • the first PDCCH monitoring occasion set MD is used to monitor (or detect) the first DCI.
  • the first DCI corresponds to a predefined DCI format, such as DCI format 3_0.
  • the first DCI corresponds to a plurality of predefined DCI formats (eg, a DCI format related to SL, eg, including DCI format 3_0).
  • the "first DCI" detected on a certain PDCCH monitoring occasion in the first PDCCH monitoring occasion set MD may correspond to one of the plurality of predefined DCI formats.
  • the first DCI is used to schedule one or more PSSCH transmissions.
  • the one or more PSSCH transmissions have corresponding (or associated) PSFCH reception occasions.
  • each of the PSSCH transmissions has a corresponding (or associated) PSFCH reception opportunity.
  • the first DCI indication (for example, indicated by the PSFCH-to-HARQ_feedback timing indicator field) carries the corresponding HARQ in a UL transmission (for example, PUCCH transmission, or PUSCH transmission) in the time slot n - ACK information (eg HARQ-ACK information related to one or more PSSCH transmissions scheduled by the first DCI).
  • the HARQ-ACK information may be determined through PSFCH reception at PSFCH reception occasions to which the one or more PSSCH transmissions are respectively associated.
  • the first DCI provides PUCCH resources (eg, provides PUCCH resources through a PUCCH resource indicator field, such as PUCCH resources in the time slot n).
  • PUCCH resource indicator field e.g. provides PUCCH resources through a PUCCH resource indicator field, such as PUCCH resources in the time slot n.
  • the value of the PUCCH resource indicator field in the first DCI and the value of the PSFCH-to-HARQ feedback timing indicator field are not 0 at the same time.
  • the first DCI includes a counter sidelink assignment indicator (counter sidelink assignment indicator, or counter SAI) field.
  • counter SAI counter sidelink assignment indicator
  • the value of the counter SAI field (for example, denoted as Or for the PDCCH listening time em , denoted as ) may represent the accumulated (eg, up to the current PDCCH listening occasion) the number of PDCCH listening occasions for which PSSCH transmissions with corresponding PSFCH reception occasions are scheduled.
  • the value of the counter SAI field is 0 (for example, MSB is 0, LSB is 0), 1 (for example, MSB is 0, LSB is 1), 2 (for example, MSB is 1, LSB is 0), 3 ( For example, MSB is 1, LSB is 1) corresponding to value 1, 2, 3, 4.
  • the first PDCCH monitoring occasion set MD belongs to one BWP (eg, active downlink BWP, active DL BWP) in one serving cell.
  • BWP active downlink BWP, active DL BWP
  • HARQ-ACK information is generated. For example, generate 0 ACK HARQ-ACK information bits (for example, denote the set of corresponding HARQ-ACK information bits as ).
  • the HARQ-ACK information is included in the first HARQ-ACK codebook.
  • the first HARQ-ACK codebook is included (or multiplexed, or carried) in one UL transmission. in,
  • the UL transmission is in the slot n.
  • the first HARQ-ACK codebook is a type-2 HARQ-ACK codebook.
  • the first HARQ-ACK codebook is a type-1 HARQ-ACK codebook.
  • the "generating HARQ-ACK information" includes: initialization. For example, do one or more of the following:
  • V s initialize the set of subscripts of HARQ-ACK information bits in the set H for which a HARQ-ACK value (eg, ACK, eg, NACK) has been set (eg, denoted as V s ) as an empty set (eg, denoted as V s ) ).
  • a HARQ-ACK value eg, ACK, eg, NACK
  • the "generating HARQ-ACK information" includes: traversing the first PDCCH monitoring occasion set MD , and for each PDCCH monitoring occasion (for example, denoted as em) that satisfies the first PDCCH monitoring occasion condition, executing The first HARQ-ACK information bit generation operation.
  • the first PDCCH listening timing condition includes one or more of the following (in any combination of "and” or “or” where applicable):
  • the PDCCH monitoring occasion em is not before the effective uplink BWP on the first reported cell is changed (or switched).
  • the start time of the PDCCH monitoring opportunity em is not before the change (or handover) of the effective uplink BWP on the first reported cell.
  • the end time of the PDCCH monitoring opportunity em is not before the change (or handover) of the effective uplink BWP on the first reporting cell.
  • the first DCI format is detected in the PDCCH listening opportunity em .
  • the first HARQ-ACK information bit generation operation includes one or more of the following:
  • index j is the value of the counter SAI indicated by the Counter sidelink assignment index field in the first DCI format detected in the PDCCH listening opportunity em.
  • the operation can be represented in pseudocode as follows:
  • a value is set (for example, a value determined according to the corresponding PSFCH reception result, such as ACK, or NACK).
  • the operation can be represented in pseudocode as follows:
  • the HARQ-ACK information bits index of added to the set V s .
  • the operation can be represented in pseudocode as follows:
  • the "generating HARQ-ACK information" includes: determining the number of HARQ-ACK information bits corresponding to the first PDCCH monitoring occasion set MD.
  • the operation can be represented in pseudocode as follows:
  • the "generating HARQ-ACK information" includes: for HARQ-ACK information bits For each bit in the HARQ-ACK value that is not set, do one or more of the following:
  • the first reporting cell may be one or more of the following:
  • the primary cell of the UE (for example, the primary cell in the MCG of the UE, Primary Cell, PCell).
  • Primary SCG Cell Primary SCG Cell (Primary SCG Cell, PSCell) of the UE.
  • ⁇ a special cell (Special Cell, SPCell) of the UE.
  • PUCCH secondary cell PUCCH SCell
  • Any cell configured by the UE Any cell configured by the UE.
  • the cell where the UL transmission carrying the HARQ-ACK information is located.
  • a primary cell (primary cell) in the PUCCH group where the cell in which the first PDCCH monitoring occasion set MD is configured is located.
  • the present invention provides a method, by setting the value of the HARQ-ACK information bit and the corresponding priority value in an exceptional case, so that the reported HARQ-ACK information completely reflects the direct link
  • the HARQ-ACK feedback situation and the priority of the uplink channel carrying the HARQ-ACK information accurately reflect the priority of data transmission on the direct link.
  • FIG. 4 is a flowchart illustrating a method performed by a user equipment according to Embodiment 4 of the present invention.
  • the steps performed by the user equipment UE include: step S401 and step S403.
  • step S401 configuration information related to a first search space set pool (pool of search space sets) and one or more RNTIs are acquired.
  • the one or more RNTIs may include one or more of the following:
  • the first search space set pool includes one or more of the following:
  • the one or more Type 0-PDCCH CSS sets may be configured by the parameter searchSpaceZero.
  • the one or more Type 0-PDCCH CSS sets may be configured by the parameter searchSpaceSIB1.
  • the one or more Type 0-PDCCH CSS sets may be used to detect a DCI format (DCI format with CRC scrambled by the SI-RNTI) whose CRC is scrambled by the SI-RNTI.
  • the one or more type OA-PDCCH CSS sets may be configured by the parameter searchSpaceOtherSystemInformation.
  • the one or more Type 0A-PDCCH CSS sets may be used to detect a DCI format whose CRC is scrambled with the SI-RNTI.
  • the one or more Type 1-PDCCH CSS sets may be configured by the parameter ra-SearchSpace.
  • the one or more Type 1-PDCCH CSS sets may be used to detect a CRC scrambled DCI format with the RA-RNTI.
  • the one or more Type 1-PDCCH CSS sets may be used to detect a DCI format whose CRC is scrambled with the MsgB-RNTI.
  • the one or more Type 1-PDCCH CSS sets may be used to detect a DCI format whose CRC is scrambled with the TC-RNTI.
  • the one or more Type 2-PDCCH CSS sets may be configured by the parameter pagingSearchSpace.
  • the one or more Type 2-PDCCH CSS sets may be used to detect a DCI format whose CRC is scrambled with the P-RNTI.
  • step S403 in the first time slot in the first search space set pool, monitor PDCCH candidates ( PDCCH candidates).
  • the first set of DCI formats may include DCI format 0_0 and/or DCI format 1_0. in,
  • the CRC of the DCI format 0_0 may be scrambled with the C-RNTI or the MCS-C-RNTI or the CS-RNTI.
  • the CRC of the DCI format 1_0 may be scrambled with the C-RNTI or the MCS-C-RNTI or the CS-RNTI.
  • the second DCI format set may include DCI format 3_0.
  • the CRC of the DCI format 3_0 may be scrambled with the SL-RNTI or the SL-CS-RNTI.
  • the third DCI format set may include DCI format 3_1.
  • the CRC of the DCI format 3_1 may be scrambled with the SL-L-CS-RNTI.
  • the first time slot is a time slot in which the UE monitors PDCCH candidates for detecting at least the fourth DCI format set.
  • the fourth set of DCI formats may include DCI format 0_0 and/or DCI format 1_0. in,
  • the CRC of the DCI format 0_0 may be scrambled with the SI-RNTI or the RA-RNTI or the MsgB-RNTI or the P-RNTI.
  • the CRC of the DCI format 1_0 may be scrambled with the SI-RNTI or the RA-RNTI or the MsgB-RNTI or the P-RNTI.
  • the present invention provides a method, by associating the RNTI for scheduling data transmission with the common search space set for scheduling downlink common signaling, so that even if the UE is not configured with user-specific search A set of spaces, and data transmissions (eg, DL data transmissions, also SL data transmissions) may also be scheduled in the common set of search spaces.
  • data transmissions eg, DL data transmissions, also SL data transmissions
  • Embodiment 5 of the present invention The following describes a method executed by a user equipment according to Embodiment 5 of the present invention with reference to FIG. 5 .
  • FIG. 5 is a flowchart illustrating a method performed by a user equipment according to Embodiment 5 of the present invention.
  • the steps performed by the user equipment UE include: step S501 and step S503.
  • step S501 the first PDCCH is received.
  • the first PDCCH carries the first DCI.
  • the first DCI corresponds to DCI format 3_0.
  • the CRC of the first DCI is scrambled with SL-CS-RNTI.
  • the SL-CS-RNTI is configured by the parameter sl-CS-RNTI.
  • the NDI (new data indicator, new data indicator) field in the first DCI is set to '0'.
  • step S503 it is verified whether the first PDCCH is used to release a Type-2 SL configuration license.
  • the "for releasing a Type-2 SL configuration license” may also be referred to as “for scheduling release of a Type-2 SL configuration license", or “for scheduling a Type-2 SL configuration license”. Release of Configuration License”.
  • the first type-2 SL configuration permission verification condition if the first type-2 SL configuration permission verification condition is satisfied, the verification is passed (or the verification is successful, verification is achieved).
  • the first type-2 SL configuration license verification conditions include one or more of the following (if applicable, press “and” or “or” in any combination):
  • the "HARQ process number" field in the first DCI is set to all "1".
  • the "Frequency resource assignment" field in the first DCI is set to all “1” (if the "Frequency resource assignment” field exists).
  • the "PSFCH-to-HARQ feedback timing indicator" field in the first DCI is set to all “0” (if the "PSFCH-to-HARQ feedback timing indicator” field exists).
  • the "PSFCH-to-HARQ feedback timing indicator" field in the first DCI is set to all “1” (if the "PSFCH-to-HARQ feedback timing indicator” field exists).
  • the "PSFCH-to-HARQ feedback timing indicator" field in the first DCI is set to all "0".
  • the "PSFCH-to-HARQ feedback timing indicator" field in the first DCI is set to all "1".
  • the "PUCCH resource indicator" field in the first DCI is set to all "0".
  • the "PUCCH resource indicator" field in the first DCI is set to all "1".
  • the verification is passed, it is considered that the information in the first DCI is a legitimate release of the Type-2 SL configuration license.
  • the "set to '1'" may mean that the values of all bits are set to '1'.
  • the "set to '0'" may mean that the values of all bits are set to '0'.
  • the "set to '1'" may mean that the integer value corresponding to the corresponding field is set to 1.
  • the "set to '0'" may mean that the integer value corresponding to the corresponding field is set to 0.
  • the "set to all '1'" may mean that the values of all bits are set to '1'.
  • the "set to all '0'" may mean that the values of all bits are set to '0'.
  • the present invention provides a method, by setting the PUCCH-related field in the DCI for releasing a Type-2 SL configuration grant to indicate that PUCCH resources are not provided, so that it is not necessary to provide PUCCH resources.
  • Such DCI provides HARQ-ACK feedback, improving the efficiency of reporting SL-related HARQ-ACK information on PUCCH.
  • FIG. 6 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. 6 is a block diagram showing a user equipment UE according to the present invention.
  • the user equipment UE60 includes a processor 601 and a memory 602 .
  • the processor 601 may include, for example, a microprocessor, a microcontroller, an embedded processor, or the like.
  • the memory 602 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 602 has program instructions stored thereon. When the instruction is executed by the processor 601, 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

根据本发明，提出了一种由用户设备执行的方法以及用户设备，其特征在于包括：确定一个或多个有相应的PSFCH接收时机的PSSCH传输，其中所述PSFCH接收时机结束于时隙n，并且相应的PSFCH到HARQ反馈的定时值为k。以及，若在时隙m报告为所述PSSCH传输产生的HARQ-ACK信息，且m不等于n+k，则将每一个所述HARQ-ACK信息比特设置为NACK，并将相应的优先级值设置为可能的优先级值中的最大值。

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5G V2X(见非专利文献4)中，网络侧(例如基站等)可以通过为UE配置和/或激活“SL配置许可”，或者通过DCI为UE分配一个或多个PSSCH传输资源。另外，网络侧(例如基站等)可以为UE提供上行资源(例如PUCCH资源，又如PUSCH资源)，用于报告与所述PSSCH传输有关的HARQ-ACK信息。在HARQ-ACK信息上报的机制中，需要解决的问题包括在各种情况下(包括在例外的情况下)都可以正确生成上报的HARQ-ACK信息所对应的HARQ-ACK码本。
另外，在5G V2X的资源分配模式1中，需要解决的问题包括如何有效地确定用于检测调度PSSCH传输的DCI格式的搜索空间集合，以及如何验证用于激活和/或去激活一个SL配置许可的DCI格式(或者说携带所述DCI格式的PDCCH)。
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
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，通过设置例外情况下的HARQ-ACK信息比特的值以及相应的优先级值，使得上报的HARQ-ACK信息完整地反映直行链路的HARQ-ACK反馈情况，以及携带所述HARQ-ACK信息的上行信道的优先级准确地反映了直行链路上的数据传输的优先级。
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：确定一个或多个有相应的PSFCH接收时机的PSSCH传输，其中所述PSFCH接收时机结束于时隙n，并且相应的PSFCH到HARQ反馈的定时值为k。以及，若在时隙m报告为所述PSSCH传输产生的HARQ-ACK信息，且m不等于n+k，则将每一个所述HARQ-ACK信息比特设置为NACK，并将相应的优先级值设置为可能的优先级值中的最大值。
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：确定一个或多个有相应的PSFCH接收时机的PSSCH传输，其中，所述PSSCH传输由在第一PDCCH监听时机检测到的第一DCI格式调度。以及，为所述PSSCH传输产生HARQ-ACK信息，并将所述HARQ-ACK信息复用在一个PUSCH传输上，其中，所述PUSCH传输由在第二PDCCH监听时机检测到的第二DCI格式调度。以及，若所述第一PDCCH监听时机起始于所述第二PDCCH监听时机之后，则将每一个所述HARQ-ACK信息比特设置为NACK，并将相应的优先级值设置为可能的优先级值中的最大值。
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：根据一个或多个检测到的DCI格式，确定O ACK个HARQ-ACK信息比特
Figure PCTCN2021120203-appb-000001
并将所述HARQ-ACK信息比特复用在一 个上行传输上。以及，若所述HARQ-ACK信息比特
Figure PCTCN2021120203-appb-000002
不对应所述一个或多个DCI格式中的任何一个中的计数器SL分配指示器字段，则将每一个所述HARQ-ACK信息比特设置为NACK，并将相应的优先级值设置为可能的优先级值中的最大值。
优选地，所述O ACK个HARQ-ACK信息比特对应一个类型-2HARQ-ACK码本。
优选地，所述上行传输是一个PUCCH传输，或者是一个PUSCH传输。
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：获取与第一搜索空间集合池有关的配置信息，以及一个或多个RNTI。以及，在所述第一搜索空间集合池中的第一时隙中为检测第一DCI格式集合和/或第二DCI格式集合和/或第三DCI格式集合而监听PDCCH候选。其中，所述第一DCI格式集合可以包括CRC用C-RNTI或MCS-C-RNTI或CS-RNTI加扰的DCI格式0_0和DCI格式1_0，所述第二DCI格式集合可以包括CRC用SL-RNTI或SL-CS-RNTI加扰的DCI格式3_0，所述第三DCI格式集合可以包括CRC用SL-L-CS-RNTI加扰的DCI格式3_1，所述第一时隙是在所述第一搜索空间集合池中为检测至少CRC用SI-RNTI或RA-RNTI或MsgB-RNTI或P-RNTI加扰的DCI格式0_0或DCI格式1_0而监听PDCCH候选的时隙。
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：接收第一PDCCH，其中所述第一PDCCH携带一个CRC用SL-CS-RNTI加扰的DCI格式3_0。以及，验证所述第一PDCCH是否用 于释放一个类型-2 SL配置许可，其中，若所述DCI格式3_0中的“HARQ process number”字段和“Frequency resource assignment”字段(若存在)设置为全“1”，且“PSFCH-to-HARQ feedback timing indicator”字段(若存在)和“PUCCH resource indicator”字段设置为全“0”，则认为所述验证通过。
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：
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，通过设置例外情况下的HARQ-ACK信息比特的值以及相应的优先级值，使得上报的HARQ-ACK信息完整地反映直行链路的HARQ-ACK反馈情况，以及携带所述HARQ-ACK信息的上行信道的优先级准确地反映了直行链路上的数据传输的优先级。
此外，本发明提供了一种方法，通过把用于调度数据传输的RNTI和用于调度下行公共信令的公共搜索空间集合关联，使得即使UE没有配置用户特定的搜索空间集合，也可以在所述公共搜索空间集合中调度数据传输(例如DL数据传输，又如SL数据传输)。
此外，本发明提供了一种方法，通过在用于释放一个类型-2 SL配置许可的DCI中的与PUCCH有关的字段设置为指示不提供PUCCH资源，使得不需要为这样的DCI提供HARQ-ACK反馈，提高了在PUCCH上报告与SL有关的HARQ-ACK信息的效率。
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是示出了根据本发明的实施例三的由用户设备执行的方法的流程图。
图4是示出了根据本发明的实施例四的由用户设备执行的方法的流程图。
图5是示出了根据本发明的实施例五的由用户设备执行的方法的流程图。
图6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
AL：Aggregation Level，聚合等级
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
CA：Carrier Aggregation，载波聚合
CBR：Channel Busy Ratio，信道忙碌比例
CCE：control-channel element，控制信道元素
CORESET：control-resource set，控制资源集
CP：Cyclic Prefix，循环前缀
CP-OFDM：Cyclic Prefix Orthogonal Frequency Division Multiplexing，循环前缀正交频分复用
CRB：Common Resource Block，公共资源块
CRC：Cyclic Redundancy Check，循环冗余校验
CSI：Channel-state Information，信道状态信息
CSS：Common Search Space，公共搜索空间
DC：Dual Connectivity，双连接
DCI：Downlink Control Information，下行控制信息
DFN：Direct Frane Number，直接帧号
DFT-s-OFDM：Discrete Fourier Transformation Spread Orthogonal Frequency Division Multiplexing，离散傅里叶变换扩频正交频分复用
DL：Downlink，下行
DL-SCH：Downlink Shared Channel，下行共享信道
DM-RS：又称为DMRS，Demodulation reference signal，解调参考信号
eMBB：Enhanced Mobile Broadband，增强的移动宽带通信
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
FDD：Frequency Division Duplex，频分双工
FDRA：Frequency Domain Resource Assignment，频域资源分配
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 Nayigation 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
IP：Internet Protocol，网际协议
LCID：Logical Channel ID，逻辑信道标识符
LSB：Least Significant Bit，最低有效位
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
MCG：Master Cell Group，主小区组
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
MSB：Most Significant Bit，最高有效位
mMTC：massive Machine Type Communication，大规模机器类通信
NAS：Non-Access-Stratum，非接入层
NDI：New Data Indicator，新数据指示符
NR：New Radio，新无线电
NUL：Normal Uplink，正常上行
OFDM：Orthogonal Frequency Division Multiplexing，正交频分复用
PBCH：Physical Broadcast Channel，物理广播信道
PCell：Primary Cell，主小区
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
PDSCH：Physical Downlink Shared Channel，物理下行共享信道
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
PSCell：Primary SCG Cell，主SCG小区
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
PTAG：Primary Timing Advance Group，主定时提前组
PUSCH：Physical uplink shared channel，物理上行共享信道
PUCCH：Physical uplink control channel，物理上行控制信道
QCL：Quasi co-location，准共置
QoS：Quality of Service，服务质量
QZSS：Quasi-Zenith Satellite System，准天顶卫星系统
RAR：Random Access Response，随机接入响应
RB：Resource Block，资源块
RE：Resource Element，资源元素
REG：resource-element group，资源元素组
RF：Radio Frequency，射频
RLC：Radio Link Control，无线链路控制协议
RNTI：Radio-Network Temporary Identifier，无线网络临时标识符
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
SCell：Secondary Cell，次小区
SCG：Secondary Cell Group，次小区组
SCI：Sidelink Control Information，直行控制信息
SCS：Subcarrier Spacing，子载波间隔
SDAP：Service Data Adaptation Protocol，业务数据适配协议
SFN：System Frame Number，系统帧号
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：SidelinkSynchronisation 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
SpCell：Special Cell，特殊小区
SRS：Sounding Reference Signal，探测参考信号
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
STAG：Secondary Timing Advance Group，辅定时提前组
Sub-channel：子信道
SUL：Supplementary Uplink，补充上行
S-GW：Serving Gateway，服务网关
TA：Timing Advance，定时提前
TAG：Timing Advance Group，定时提前组
TB：Transport Block，传输块
TCP：Transmission Control Protocol，传输控制协议
TDD：Time Division Duplex，时分双工
TPC：Transmit power control，传输功率控制
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
URLLC：Ultra-Reliable and Low Latency Communication，超可靠低延迟通信
USS：UE-specific Search Space，UE特定搜索空间
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，“取值集合”指的是所有可能的取值的集合。
●可选地，在一个信息元素I中定义的一个参数z也可以称为所述信息元素I中的一个“数据单元”(或者“字段”)，相应地，所述参数z对应的信息元素Z也可以称为所述“数据单元”(或者“字段”)z的类型。
●可选地，在上下文清楚的情况下，一个有N个元素的序列x(0)，x(1)，...，x(N-1)可以简写为x(0)，...，x(N-1)。
●可选地，一个有N个元素的序列的长度为N(或者说所述序列的大小为N)。
●可选地，在适用的情况下，“V2X通信”、“V2X SL通信”和“SL V2X通信”可以互换。
●可选地，在适用的情况下，“V2X通信”可以是基于NR SL的V2X通信。
●可选地，在适用的情况下，“V2X通信”可以是基于LTE SL的V2X通信。
●可选地，在上下文清楚的情况下，可以认为一个TDD小区可以配置一个DL载波、一个UL载波以及，可选地，一个SUL载波。其中，所述UL载波也可以称为“非SUL载波”。
●可选地，在上下文清楚的情况下，可以认为在一个TDD小区中，“非SUL载波”是一种“UL载波”。例如，一个TDD小区可以配置一个UL载波，称为“非SUL载波”。又如，一个TDD小区可以配置两个UL载波，其中一个是“非SUL载波”，另一个是“SUL载波”。
●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(例如在某个(些)资源上执行某个(些)操作时)，“在XX内”、“在XX中”和“在XX上”中的任意两个可以互换。其中，XX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)，或者一个符号，或者一个时隙，或者一个子帧，或者一个半帧，或者一个帧，或者一个任意的时域和/或频域和/或码域和/或空域资源，等等。
●可选地，若S 1是一个集合，则集合S 1的基数(cardinality)可以记为
Figure PCTCN2021120203-appb-000003
可选地，基数可以用于刻画一个集合的大小，例如空集的基数记作0，又如包含单个元素的集合的基数记作1，又如包含两个元素的集合的基数记作2，等等。
●可选地，若S 1是一个集合，则S 1的子集可以是S 1中的零个或一个或多个(包括全部)元素的集合。
●可选地，若S 1和S 2是两个集合，则S 1-S 2表示集合S 1和集合S 2的“差集”，即集合S 1中不属于集合S 2的元素的集合。
●可选地，若S 1和S 2是两个集合，则S 1-S 2＝{x|x∈S 1且
Figure PCTCN2021120203-appb-000004
}。
●可选地，对集合S 1中的元素进行操作(例如筛选、变换等)后得到集合S 2，可以等同于直接在原集合S 1中进行操作，得到更新后的集合S 1。
●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PC5 RRC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”，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，一个度量值(记为x 2)相对于另一个度量值(记为x 1)的偏移也可以称为从后者到前者的偏移。例如，时隙t 2相对于时隙t 1的偏移也可以称为从时隙t 1到时隙t 2的偏移，反之亦然。
●可选地，“时隙t”可以指编号为t的时隙。
●可选地，可以在子帧内对时隙进行编号。例如对于30kHz SCS，一个时隙在子帧内的编号可以是集合{0，1}中的任意一个元素 的值。
●可选地，可以在半帧内对时隙进行编号。例如对于30kHz SCS，一个时隙在子帧内的编号可以是集合{0，1，...，9}中的任意一个元素的值。
●可选地，可以在帧内对时隙进行编号。例如对于30kHz SCS，一个时隙在子帧内的编号可以是集合{0，1，...，19}中的任意一个元素的值。
●可选地，可以在帧的编号周期(例如1024帧)内对时隙进行编号。例如对于30kHz SCS，一个时隙在1024帧内的编号可以是集合{0，1，...，20479}中的任意一个元素的值。
●可选地，可以在任意一个时隙开始、以任意多个时隙为周期对时隙进行编号。例如，时隙t 1、t 2、……、t N中的部分或全部可以位于相同的子帧或半帧或帧或帧编号周期(例如1024帧)内，也可以位于不同的子帧或半帧或帧或帧编号周期(例如1024帧)内。
●可选地，对于时隙t 1、t 2、……、t N，在适用的情况下，可以用t i(2≤i≤N)相对于t 1的偏移(例如Δt i，1＝t i-t 1)表示t i。可选地，此时可以认为t 1＝0。
●可选地，“符号”指的是“OFDM符号”。
●可选地，在一个时隙内，OFDM符号的编号可以从0开始。例如对于正常CP，在一个时隙内的OFDM符号的编号的集合可以是{0，1，...，13}。又如对于扩展CP，在一个时隙内的OFDM符号的编号的集合可以是{0，1，...，11}。
●可选地，一个PDCCH监听时机的起始时间指的是其关联的搜索空间集合的起始时间。
●可选地，一个PDCCH监听时机的结束时间指的是其关联的搜索空间集合的结束时间。
●可选地，一个PDCCH监听时机的持续时间指的是其关联的搜索空间集合的持续时间。
●可选地，一个PDCCH监听时机所对应的时间(例如起始时间， 又如结束时间，又如持续时间，等等)可以用秒为单位，或者用毫秒为单位，或者用符号为单位，或者用时隙为单位，或者用子帧为单位，或者用半帧为单位，或者用帧为单位。
●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，子信道(subchannel，或者sub-channel)的编号可以从0开始。例如，若资源池中配置的子信道的个数为
Figure PCTCN2021120203-appb-000005
则子信道的编号的集合可以是
Figure PCTCN2021120203-appb-000006
●可选地，在一个资源块内，子载波的编号可以从0开始。例如在一个资源块内的子载波的编号的集合可以是{0，1，...，11}。
●可选地，一个大小为L比特的参数(例如RRC参数)的取值可以用一个整数值(例如0，1，2，等等)表示，也可以用所述整数对应的比特串(bit string，例如长度为L的比特串，例如‘b 0b 1...b L-1’)表示。其中，
◆可选地，所述比特串‘b 0b 1...b L-1’中，第一个(即最左边的)比特(即b 0)为最高有效位，最后一个(即最右边的)比特(即b L-1)为最低有效位。例如，若L＝3，且所述参数的取值用比特串表示为‘011’，则所述参数的最高有效位的值为0，所述参数对应的整数值为3。
◆可选地，所述比特串‘b 0b 1...b L-1’中，第一个(即最左边的)比特(即b 0)为最低有效位，最后一个(即最右边的)比特(即b L-1)为最高有效位。例如，若L＝3，且所述参数的取值用比特串表示为‘011’，则所述参数的最低有效位的值为0，所述参数对应的整数值为6。
●可选地，ACK可以对应整数0，NACK可以对应整数1。
●可选地，ACK可以对应整数1，NACK可以对应整数0。
●可选地，在适用的情况下，“DCI”(或者说“一个DCI”)指的是一个DCI传输。其中，
◆可选地，所述DCI传输对应一个特定的DCI格式，或者一个或多个特定的DCI格式中的一个，或者一个任意的DCI格式。其中，可选地，在DCI格式确定的情况下(例如DCI格式3_0)，则所述DCI传输可以写成“DCI格式3_0”，或者“一个DCI格式3_0”。例如，“由DCI调度”可以写成
“由一个DCI格式3_0调度”。
●可选地，在适用的情况下，“检测DCI”可以指按照一个或多个DCI格式在给定的一个或多个PDCCH监听时机中检测DCI。
●可选地，SL-L-CS-RNTI可以替换为SL Semi-Persistent Scheduling V-RNTI。反之亦然。
●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”。
●可选地，在适用的情况下，为一个HARQ-ACK信息比特设置一个值也可以表述为下面中的一项：
◆为所述HARQ-ACK信息比特设置一个HARQ-ACK值。
◆为所述HARQ-ACK信息比特生成一个值。
◆为所述HARQ-ACK信息比特生成一个HARQ-ACK值。
●可选地，对于一个HARQ-ACK信息比特(例如与SL链路上的数据传输有关的HARQ-ACK信息的HARQ-ACK信息比特)的优先级值(例如称为HARQ-ACK优先级值，例如记为
Figure PCTCN2021120203-appb-000007
)，
◆可选地，所述HARQ-ACK优先级值也可以称为所述HARQ-ACK信息比特所关联(或者对应)的优先级值。
◆可选地，不同的协议层对所述HARQ-ACK优先级值
Figure PCTCN2021120203-appb-000008
的 取值集合的定义可以不同，此时，所述HARQ-ACK优先级值
Figure PCTCN2021120203-appb-000009
指的是适用的协议层中定义的HARQ-ACK优先级值。例如第一协议层(例如物理层)定义的HARQ-ACK优先级值的取值集合为{0，1，2，3，4，5，6，7}，第二协议层(例如MAC层，又如RRC层，等等)定义的HARQ-ACK优先级值的取值集合为{1，2，3，4，5，6，7，8}，则所述第一协议层的HARQ-ACK优先级值0可以对应所述第二协议层的HARQ-ACK优先级值1，所述第一协议层的HARQ-ACK优先级值1可以对应所述第二协议层的HARQ-ACK优先级值2，……，所述第一协议层的HARQ-ACK优先级值7可以对应所述第二协议层的HARQ-ACK优先级值8。
◆可选地，确定一个HARQ-ACK信息比特的HARQ-ACK优先级值
Figure PCTCN2021120203-appb-000010
也可以表述为“生成所述HARQ-ACK信息比特的HARQ-ACK优先级值
Figure PCTCN2021120203-appb-000011
”，或者“为所述HARQ-ACK信息比特生成一个HARQ-ACK优先级值
Figure PCTCN2021120203-appb-000012
”。例如，为所述HARQ-ACK信息比特生成一个HARQ-ACK优先级值0。又如，为所述HARQ-ACK信息比特生成一个HARQ-ACK优先级值7。
◆可选地，所述HARQ-ACK信息比特的优先级随着相应的HARQ-ACK优先级值
Figure PCTCN2021120203-appb-000013
的增加而降低。
◆可选地，所述HARQ-ACK信息比特的优先级随着相应的HARQ-ACK优先级值
Figure PCTCN2021120203-appb-000014
的增加而升高。
◆可选地，所述HARQ-ACK优先级值
Figure PCTCN2021120203-appb-000015
的取值集合可以是下面中的一项：
○{0，1，2，3，4，5，6，7}。
○{0，1，2，3，4，5，6，7，8}。
○{0，1，2，3，4，5，6，7，8，9}。
○{0，1，2，3，4，5，6，7，8，9，10}。
○{0，1，2，3，4，5，6，7，8，9，10，11}。
○{0，1，2，3，4，5，6，7，8，9，10，11，12}。
○{0，1，2，3，4，5，6，7，8，9，10，11，12，13}。
○{0，1，2，3，4，5，6，7，8，9，10，11，12，13，14}。
○{0，1，2，3，4，5，6，7，8，9，10，11，12，13，14，15}。
○{1，2，3，4，5，6，7，8}。
○{1，2，3，4，5，6，7，8，9}。
○{1，2，3，4，5，6，7，8，9，10}。
○{1，2，3，4，5，6，7，8，9，10，11}。
○{1，2，3，4，5，6，7，8，9，10，11，12}。
○{1，2，3，4，5，6，7，8，9，10，11，12，13}。
○{1，2，3，4，5，6，7，8，9，10，11，12，13，14}。
○{1，2，3，4，5，6，7，8，9，10，11，12，13，14，15}。
○{1，2，3，4，5，6，7，8，9，10，11，12，13，14，15，16}。
●可选地，一个或多个HARQ-ACK信息比特分别对应的HARQ-ACK优先级值用于确定承载所述一个或多个HARQ-ACK信息比特的UL传输的优先级值(例如记所述UL传输的优先级值为
Figure PCTCN2021120203-appb-000016
)。其中，
◆可选地，所述优先级值
Figure PCTCN2021120203-appb-000017
用于确定所述UL传输与一个SL传输之间的优先次序(例如当所述UL传输与所述SL传输在时间上重叠时)。例如，若所述UE不能同时执行所述UL传输和所述SL传输，或者不能在一个服务小区内同时执行所述UL传输和所述SL传输，则所述UE只传输两者中具有较高优先次序者。其中，
○可选地，相应的SL传输的优先级由其所关联的SCI中的“Priority”字段确定。例如，将所述SL传输的优先级值确定为所述“Priority”字段的值。又如，将所述SL传输的优先级值确定为所述“Priority”字段的值加1。
○可选地，所述UL传输和所述SL传输中优先级值高者优先次序高。
○可选地，所述UL传输和所述SL传输中优先级值高者 优先次序低。
◆可选地，所述UL传输可以是一个PUCCH传输。
◆可选地，所述UL传输可以是一个PUSCH传输。
◆可选地，所述优先级值
Figure PCTCN2021120203-appb-000018
是所述UL传输上复用的所有HARQ-ACK信息比特的HARQ-ACK优先级值中的最小值。
◆可选地，所述优先级值
Figure PCTCN2021120203-appb-000019
是所述UL传输上复用的所有HARQ-ACK信息比特的HARQ-ACK优先级值中的最大值。
◆可选地，所述优先级值
Figure PCTCN2021120203-appb-000020
的取值集合可以是下面中的一项：
○{0，1，2，3，4，5，6，7}。
○{0，1，2，3，4，5，6，7，8}。
○{0，1，2，3，4，5，6，7，8，9}。
○{0，1，2，3，4，5，6，7，8，9，10}。
○{0，1，2，3，4，5，6，7，8，9，10，11}。
○{0，1，2，3，4，5，6，7，8，9，10，11，12}。
○{0，1，2，3，4，5，6，7，8，9，10，11，12，13}。
○{0，1，2，3，4，5，6，7，8，9，10，11，12，13，14}。
○{0，1，2，3，4，5，6，7，8，9，10，11，12，13，14，15}。
○{1，2，3，4，5，6，7，8}。
○{1，2，3，4，5，6，7，8，9}。
○{1，2，3，4，5，6，7，8，9，10}。
○{1，2，3，4，5，6，7，8，9，10，11}。
○{1，2，3，4，5，6，7，8，9，10，11，12}。
○{1，2，3，4，5，6，7，8，9，10，11，12，13}。
○{1，2，3，4，5，6，7，8，9，10，11，12，13，14}。
○{1，2，3，4，5，6，7，8，9，10，11，12，13，14，15}。
○{1，2，3，4，5，6，7，8，9，10，11，12，13，14，15，16}。
●可选地，第一缺省HARQ-ACK值(例如记为v default)可以按下面中的一种或多种方式定义：
◆v default是一个预定义的值。例如ACK，又如NACK。
◆v default是一个配置的值。
◆v default是一个预配置的值。
●可选地，第一缺省HARQ-ACK优先级值(例如记为p default)可以按下面中的一种或多种方式定义：
◆p default是一个预定义的值。例如0，又如1，又如2，又如3，又如4，又如5，又如6，又如7，又如8，又如9，又如10，又如11，又如12，又如13，又如14，又如15，又如16。
◆p default是一个最大的优先级值。例如HARQ-ACK优先级值的取值集合中的最大的元素的值，或者所有可能的HARQ-ACK优先级值中的最大值，或者所有适用的HARQ-ACK优先级值中的最大值，或者一组预定义的HARQ-ACK优先级值中的最大值，或者一组配置的HARQ-ACK优先级值中的最大值，或者一组预配置的HARQ-ACK优先级值中的最大值，如{0，1，2，3，4，5，6，7}中的7，又如{0，1，2，3，4，5，6，7，8}中的8，又如{0，1，2，3，4，5，6，7，8，9}中的9，又如{0，1，2，3，4，5，6，7，8，9，10}中的10，又如{0，1，2，3，4，5，6，7，8，9，10，11}中的11，又如{0，1，2，3，4，5，6，7，8，9，10，11，12}中的12，又如{0，1，2，3，4，5，6，7，8，9，10，11，12，13}中的13，又如{0，1，2，3，4，5，6，7，8，9，10，11，12，13，14}中的14，又如{0，1，2，3，4，5，6，7，8，9，10，11，12，13，14，15}中的15，又如{1，2，3，4，5，6，7，8}中的8，又如{1，2，3，4，5，6，7，8，9}中的9，又如{1，2，3，4，5，6，7，8，9，10}中的10，又如{1，2，3，4，5，6，7，8，9，10，11}中的11，又如{1，2，3，4，5，6，7，8，9，10，11，12}中的12，又如{1，2，3，4，5，6，7，8，9，10，11，12，13}中的13，又如{1，2，3，4，5，6，7，8，9，10，11，12，13，14}中的14，又如{1，2，3，4，5，6，7，8，9，10，11，12，13，14，15}中的15，又如{1，2，3，4，5，6，7，8，9，10，11，12，13，14，15，16}中的16。
◆p default是一个最小的优先级值。例如HARQ-ACK优先级值的取值集合中的最小的元素的值，或者所有可能的HARQ-ACK优先级值中的最小值，或者所有适用的HARQ-ACK优先级值中的最小值，或者一组预定义的HARQ-ACK优先级值中的最小值，或者一组配置的HARQ-ACK优先级值中的最小值，或者一组预配置的HARQ-ACK优先级值中的最小值，如{0，1，2，3，4，5，6，7}中的0，又如{0，1，2，3，4，5，6，7，8}中的0，又如{0，1，2，3，4，5，6，7，8，9}中的0，又如{0，1，2，3，4，5，6，7，8，9，10}中的0，又如{0，1，2，3，4，5，6，7，8，9，10，11}中的0，又如{0，1，2，3，4，5，6，7，8，9，10，11，12}中的0，又如{0，1，2，3，4，5，6，7，8，9，10，11，12，13}中的0，又如{0，1，2，3，4，5，6，7，8，9，10，11，12，13，14}中的0，又如{0，1，2，3，4，5，6，7，8，9，10，11，12，13，14，15}中的0，又如{1，2，3，4，5，6，7，8}中的1，又如{1，2，3，4，5，6，7，8，9}中的1，又如{1，2，3，4，5，6，7，8，9，10}中的1，又如{1，2，3，4，5，6，7，8，9，10，11}中的1，又如{1，2，3，4，5，6，7，8，9，10，11，12}中的1，又如{1，2，3，4，5，6，7，8，9，10，11，12，13}中的1，又如{1，2，3，4，5，6，7，8，9，10，11，12，13，14}中的1，又如{1，2，3，4，5，6，7，8，9，10，11，12，13，14，15}中的1，又如{1，2，3，4，5，6，7，8，9，10，11，12，13，14，15，16}中的1。
◆p default是一个配置的值。
◆p default是一个预配置的值。
●可选地，参数sl-PSFCH-ToPUCCH-CG-Type1用于指示相应的SL配置许可的每个周期的最后一个PSSCH资源所关联的PSFCH(或者PSFCH传输时机，或者PSFCH接收时机)与报告相应的HARQ-ACK信息的PUCCH(或PUSCH)之间的偏移(例如，以时隙为单位)。
●可选地，参数sl-N1PUCCH-AN用于指示相应的SL配置许可的PUCCH资源，或者说用于PUCCH的HARQ资源。其中，所述参数sl-N1PUCCH-AN可以是一个标识符，用于引用或指向参数sl-PUCCH-Config配置的实际的PUCCH资源。
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。
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 PCTCN2021120203-appb-000021
个S-SSB，其中，编号(或者说索引)为i S-SSB
Figure PCTCN2021120203-appb-000022
Figure PCTCN2021120203-appb-000023
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 PCTCN2021120203-appb-000024
其中
Figure PCTCN2021120203-appb-000025
可以通过参数timeOffsetSSB-SL(或者参数sl-TimeOffsetSSB)配置，
Figure PCTCN2021120203-appb-000026
可以通过参数timeIntervalSSB-SL(或者参数sl-TimeInterval)配置。
有时候，可以认为为SL载波中的S-SSB配置的时域资源和/或频域资源对应的是候选(candidate)S-SSB(或者称为S-SSB候选)。在一个候选S-SSB所对应的时域和/或频域资源上，可能同时存在一个或多个S-SSB传输(例如，分别来自不同UE)，也可能不存在任何S-SSB传输。
有时候，一个配置了S-SSB(或者说配置了S-SSB资源，或者说配置了候选S-SSB，或者说配置了候选S-SSB资源)的时隙也可以称为配置了SLSS(或者说配置了SLSS资源)的时隙。反之亦然。
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 PCTCN2021120203-appb-000027
)，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 PCTCN2021120203-appb-000028
)，其中所述
Figure PCTCN2021120203-appb-000029
个符号可以是连续的符号。
Figure PCTCN2021120203-appb-000030
的取值集合可以记为
Figure PCTCN2021120203-appb-000031
例如
Figure PCTCN2021120203-appb-000032
的取值集合可以记为
Figure PCTCN2021120203-appb-000033
例如
Figure PCTCN2021120203-appb-000034
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 PCTCN2021120203-appb-000035
则
Figure PCTCN2021120203-appb-000036
Figure PCTCN2021120203-appb-000037
例如，若
Figure PCTCN2021120203-appb-000038
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 PCTCN2021120203-appb-000039
符号
Figure PCTCN2021120203-appb-000040
符号
Figure PCTCN2021120203-appb-000041
是上行符号(例如通过SIB1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，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 PCTCN2021120203-appb-000042
)。所述
Figure PCTCN2021120203-appb-000043
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 PCTCN2021120203-appb-000044
)。可选地，UE可以假定所述
Figure PCTCN2021120203-appb-000045
个PRB中的最后
Figure PCTCN2021120203-appb-000046
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 PCTCN2021120203-appb-000047
其中，编号为i的子信道可以称为“子信道i”
Figure PCTCN2021120203-appb-000048
●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{r 0，r 1，r 2，...}。
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)的分配方式可以分类如下：
●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检测(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)。
“PSSCH传输时机”可以是与PSSCH传输和/或接收有关的(例如一个或多个PSSCH传输和/或接收所使用的)一个或多个时域和/或频域和/或码域资源。例如，下面中的一项：
●在一个资源池中的一个时隙。
●在一个资源池中的一个时隙中，与PSSCH传输有关的一个或多个符号。
●在一个资源池中的一个或多个时隙。
●在一个资源池中的一个或多个时隙中，与PSSCH传输有关的一个或多个符号。
“PSSCH传输时机”也可以称为“PSCCH-PSSCH传输时机”。
“PSSCH传输时机”的定义可以只应用于一个资源池(即在每一个资源池内分别定义“PSSCH传输时机”)，也可以应用于多个资源池(例如一个“PSSCH传输时机”可以包括多个资源池内的时域和/或频域和/或码域资源)。
一个PSSCH传输时机可以用于一个“候选PSSCH传输”。此时，所述PSSCH传输时机可以称为“用于候选PSSCH传输的时机”(occasion for candidate PSSCH transmission)。其中，一个“候选PSSCH传输”可以表 示在相应的PSSCH传输时机上的任意一个实际的PSSCH传输。
“PSSCH接收时机”可以是与PSSCH传输和/或接收有关的(例如一个或多个PSSCH传输和/或接收所使用的)一个或多个时域和/或频域和/或码域资源。例如，下面中的一项：
●在一个资源池中的一个时隙。
●在一个资源池中的一个时隙中，与PSSCH传输和/或接收有关的一个或多个符号。
●在一个资源池中的一个或多个时隙。
●在一个资源池中的一个或多个时隙中，与PSSCH传输和/或接收有关的一个或多个符号。
“PSSCH接收时机”也可以称为“PSCCH-PSSCH接收时机”。
“PSSCH接收时机”的定义可以只应用于一个资源池(即在每一个资源池内分别定义“PSSCH接收时机”)，也可以应用于多个资源池(例如一个“PSSCH接收时机”可以包括多个资源池内的时域和/或频域和/或码域资源)。
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，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)。
“PSSCH传输时机”和“PSSCH接收时机”可以认为分别是从TX UE和RX UE的角度定义的，例如，一个“PSSCH传输时机”从RX UE的角度看可以认为就是一个“PSSCH接收时机”，一个“PSSCH接收时机”从TX UE的角度看可以认为就是一个“PSSCH传输时机”。
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 PCTCN2021120203-appb-000049
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 PCTCN2021120203-appb-000050
或者
Figure PCTCN2021120203-appb-000051
或者
Figure PCTCN2021120203-appb-000052
或者
Figure PCTCN2021120203-appb-000053
)。其中，
Figure PCTCN2021120203-appb-000054
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 PCTCN2021120203-appb-000055
符号
Figure PCTCN2021120203-appb-000056
和符号
Figure PCTCN2021120203-appb-000057
Figure PCTCN2021120203-appb-000058
)。其中，符号
Figure PCTCN2021120203-appb-000059
可以用于AGC，另外，此符号上传输的内容可以复制自符号
Figure PCTCN2021120203-appb-000060
上传输的内容)；符号
Figure PCTCN2021120203-appb-000061
可以用于PSFCH传输；符号
Figure PCTCN2021120203-appb-000062
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。
在一个已配置PSFCH资源的资源池中，
Figure PCTCN2021120203-appb-000063
(例如
Figure PCTCN2021120203-appb-000064
)个时隙(例如称这样的时隙为“PSSCH时隙”)可以关联到一个PSFCH时隙。例如，所述关联的方式可以如下：
●所述
Figure PCTCN2021120203-appb-000065
个PSSCH时隙是在所述资源池中连续的时隙。
●对于所述
Figure PCTCN2021120203-appb-000066
个PSSCH中的每一个，所述PSFCH时隙是在所述资源池中位于该PSSCH时隙至少
Figure PCTCN2021120203-appb-000067
个时隙后的第一个PSFCH时隙。其中，
Figure PCTCN2021120203-appb-000068
可以通过参数sl-MinTimeGapPSFCH进行配置。
例如，若
Figure PCTCN2021120203-appb-000069
且时隙r n+5是所述资源池中的一个PSFCH时隙，则所述资源池中的时隙r n，时隙r n+1，时隙r n+2和时隙r n+3可以关联到所述PSFCH时隙r n+5。
Figure PCTCN2021120203-appb-000070
的取值可以与相应的PSFCH时隙有关。例如，对于一个资源池内的一个或多个PSFCH时隙，
Figure PCTCN2021120203-appb-000071
对于所述资源池内的其他PSFCH时隙，
Figure PCTCN2021120203-appb-000072
在频域(frequency domain)，一个资源池内的PSFCH资源可以对应一个大小为
Figure PCTCN2021120203-appb-000073
的PRB集合(例如一组连续PRB的集合，又如一组部分或全部不连续的PRB的集合)。其中，
Figure PCTCN2021120203-appb-000074
可以通过参数rbSetPSFCH进行配置，或者通过参数sl-PSFCH-RB-Set进行配置。
在码域(code domain)，一个资源池内的PSFCH资源可以对应
Figure PCTCN2021120203-appb-000075
个循环移位对(cyclic shift pair)。其中，
Figure PCTCN2021120203-appb-000076
可以由高层协议配置或指示(例如通过参数sl-NumMuxCS-Pair进行配置)。
在一个已配置PSFCH资源的资源池中，在一个PSFCH时隙内，记与所述PSFCH时隙关联的
Figure PCTCN2021120203-appb-000077
个PSSCH时隙的编号为i，所述资源池的
Figure PCTCN2021120203-appb-000078
个子信道的编号为j，所述资源池配置的
Figure PCTCN2021120203-appb-000079
个用于PSFCH的PRB的编号分别为
Figure PCTCN2021120203-appb-000080
则时隙i和子信道j可以对应PRB范围(或者说PRB集合，其中的PRB的编号用一个区间表示)
Figure PCTCN2021120203-appb-000081
其中
Figure PCTCN2021120203-appb-000082
对于在时隙i内、占用从子信道j开始的
Figure PCTCN2021120203-appb-000083
个连续的子信道的一个 PSSCH传输，相应的PSFCH资源可以占用
Figure PCTCN2021120203-appb-000084
个PRB，其中，
Figure PCTCN2021120203-appb-000085
的取值可以是个整数。例如，
Figure PCTCN2021120203-appb-000086
(例如当参数sl-PSFCH-CandidateResourceType配置为“startSubCH”时)。又如，
Figure PCTCN2021120203-appb-000087
(例如当参数sl-PSFCH-CandidateResourceType配置为“allocSubCH”时)，此时，所述
Figure PCTCN2021120203-appb-000088
个PRB可以由时隙i和子信道j对应的PRB范围、时隙i和子信道j+1对应的PRB范围、……、时隙i和子信道
Figure PCTCN2021120203-appb-000089
对应的PRB范围组成。
所述
Figure PCTCN2021120203-appb-000090
个PRB可以对应
Figure PCTCN2021120203-appb-000091
Figure PCTCN2021120203-appb-000092
个“PSFCH资源”(PSFCH resource)，其索引(或者编号)方式可以是，先按照
Figure PCTCN2021120203-appb-000093
个PRB的PRB索引(或者编号)递增的顺序进行索引(或者编号)，再按照
Figure PCTCN2021120203-appb-000094
个循环移位对的循环移位对索引(或者编号)递增的顺序进行索引(或者编号)。可以看出，一个“PSFCH资源”可以对应一个特定的时域资源、频域资源和码域资源的组合。
“PSFCH传输时机”(PSFCH transmission occasion)可以是与PSFCH传输和/或接收有关的(例如一个或多个PSFCH传输和/或接收所使用的)一个或多个时域和/或频域和/或码域资源，例如，下面中的一项：
●一个配置了PSFCH资源的时隙。
●一个PSFCH时隙。
●在一个资源池中的一个配置了PSFCH资源的时隙。
●在一个资源池中的一个PSFCH时隙。
●与一次PSFCH传输有关的一个或多个符号(例如一个PSFCH时隙中的最后三个SL符号，又如一个PSFCH时隙中用于传输PSFCH的符号(如倒数第二个SL符号)，又如一个PSFCH时隙中用于传输PSFCH的符号(如倒数第二个SL符号)以及用于AGC的符号(如倒数第三个SL符号)等等)。
●与一次PSFCH接收有关的一个或多个符号(例如一个PSFCH时隙中的最后三个SL符号，又如一个PSFCH时隙中用于传输PSFCH的符号(如倒数第二个SL符号)，又如一个PSFCH时隙中用于传输PSFCH的符号(如倒数第二个SL符号)以及用于AGC的符号(如倒数第三个SL符号)等等)。
●一个PSFCH资源。
●一个PSFCH资源所对应的时域资源。
●一个PSFCH资源所对应的频域资源。
●一个PSFCH资源所对应的码域资源。
●一个PSFCH资源所对应的时域资源和频域资源。
●一个PSFCH资源所对应的时域资源和码域资源。
●一个PSFCH资源所对应的频域资源和码域资源。
●一个PSFCH资源所对应的时域资源、频域资源和码域资源。
●一个或多个PSFCH资源。
●一个或多个PSFCH资源所对应的时域资源。
●一个或多个PSFCH资源所对应的频域资源。
●一个或多个PSFCH资源所对应的码域资源。
●一个或多个PSFCH资源所对应的时域资源和频域资源。
●一个或多个PSFCH资源所对应的时域资源和码域资源。
●一个或多个PSFCH资源所对应的频域资源和码域资源。
●一个或多个PSFCH资源所对应的时域资源、频域资源和码域资源。
“PSFCH传输时机”的定义可以只应用于一个资源池(即在每一个资源池内分别定义“PSFCH传输时机”)，也可以应用于多个资源池(例如一个“PSFCH传输时机”可以包括多个资源池内的时域和/或频域和/或码域资源)。
“PSFCH接收时机”(PSFCH reception occasion)可以是与PSFCH传输和/或接收有关的(例如一个或多个PSFCH传输和/或接收所使用的)一个或多个时域和/或频域和/或码域资源，例如，下面中的一项：
●一个配置了PSFCH资源的时隙。
●一个PSFCH时隙。
●在一个资源池中的一个配置了PSFCH资源的时隙。
●在一个资源池中的一个PSFCH时隙。
●与一次PSFCH传输有关的一个或多个符号(例如一个PSFCH时隙中的最后三个SL符号，又如一个PSFCH时隙中用于传输 PSFCH的符号(如倒数第二个SL符号)，又如一个PSFCH时隙中用于传输PSFCH的符号(如倒数第二个SL符号)以及用于AGC的符号(如倒数第三个SL符号)等等)。
●与一次PSFCH接收有关的一个或多个符号(例如一个PSFCH时隙中的最后三个SL符号，又如一个PSFCH时隙中用于传输PSFCH的符号(如倒数第二个SL符号)，又如一个PSFCH时隙中用于传输PSFCH的符号(如倒数第二个SL符号)以及用于AGC的符号(如倒数第三个SL符号)等等)。
●一个PSFCH资源。
●一个PSFCH资源所对应的时域资源。
●一个PSFCH资源所对应的频域资源。
●一个PSFCH资源所对应的码域资源。
●一个PSFCH资源所对应的时域资源和频域资源。
●一个PSFCH资源所对应的时域资源和码域资源。
●一个PSFCH资源所对应的频域资源和码域资源。
●一个PSFCH资源所对应的时域资源、频域资源和码域资源。
●一个或多个PSFCH资源。
●一个或多个PSFCH资源所对应的时域资源。
●一个或多个PSFCH资源所对应的频域资源。
●一个或多个PSFCH资源所对应的码域资源。
●一个或多个PSFCH资源所对应的时域资源和频域资源。
●一个或多个PSFCH资源所对应的时域资源和码域资源。
●一个或多个PSFCH资源所对应的频域资源和码域资源。
●一个或多个PSFCH资源所对应的时域资源、频域资源和码域资源。
“PSFCH接收时机”的定义可以只应用于一个资源池(即在每一个资源池内分别定义“PSFCH接收时机”)，也可以应用于多个资源池(例如一个“PSFCH接收时机”可以包括多个资源池内的时域和/或频域和/或码域资源)。
“PSFCH传输时机”和“PSFCH接收时机”可以认为分别是从TX UE 和RX UE的角度定义的，例如，一个“PSFCH传输时机”从RX UE的角度看可以认为就是一个“PSFCH接收时机”，一个“PSFCH接收时机”从TX UE的角度看可以认为就是一个“PSFCH传输时机”。
一个PSSCH传输时机可以有一个或多个关联(或者对应)的PSFCH接收时机(例如当相应的资源池配置了PSFCH资源时)。此时，所述PSSCH传输时机可以称为“用于候选PSSCH传输、且有相应的PSFCH接收时机的时机”(occasion for candidate PSSCH transmission with corresponding PSFCH reception occasion(s))。
网络侧(例如基站等)可以为UE(例如，TX UE)配置一个或多个“SL配置许可”(SL configured grant，或者configured SL grant，或者在上下文清楚的情况下简称为SL grant)，例如通过参数sl-ConfiguredGrantConfigList进行配置。每个SL配置许可可以关联周期性的PSSCH传输资源(或者说可以调度周期性的PSSCH传输)，其中，相应的周期可以通过参数sl-PeriodCG进行配置，每个周期内可以分配一个或多个PSSCH传输资源(或者说调度一个或多个PSSCH传输)。SL配置许可可以分为类型-1 SL配置许可(Type 1 SL configured grant，或者Type-1 SL configured grant，或者SL configured grant rType 1，或者SL configured grant Type-1)和类型-2 SL配置许可(Type 2 SL configured grant，或者Type-2 SL configured grant，或者SL configured grant Type 2，或者SL configured grant Type-2)，其中前者关联的资源可以通过半静态的信令(例如RRC信令)配置和/或激活和/或去激活，后者关联的资源可以通过半静态的信令(例如RRC信令)配置，所配置的资源可以动态地(例如通过DCI)激活和/或去激活。
网络侧(例如基站等)可以通过DCI(例如DCI格式3_0)为UE(例如，TX UE)分配一个或多个PSSCH传输资源(或者说调度一个或多个PSSCH传输)。这种资源分配方式可以称为“动态许可”(dynamic grant)，以区别于“配置许可”(configured grant)。
网络侧(例如基站等)可以为UE(例如，TX UE)提供(例如通过RRC配置提供，又如通过DCI指示)UL资源(例如PUCCH资源，又如PUSCH资源)，用于报告与SL传输有关的HARQ-ACK信息，例如，用 于指示SL配置许可或DCI所分配的SL资源上的数据和/或控制信息的发送和/或接收情况。这种HARQ-ACK信息可以称为“在UL上报告的与SL传输有关的HARQ-ACK信息”。
具体地，在UL上报告的与SL传输有关的HARQ-ACK信息可以来自(或者说基于)UE在直行链路上的一个或多个接收和/或发送操作，例如包括下面中的一项或多项：
●PSFCH接收(PSFCH reception，或者PSFCH receptions)。例如，TX UE在基站通过DCI指示的SL资源上发送PSSCH后，通过在所述PSSCH所在的时隙关联的PSFCH时隙上接收RXUE发送的PSFCH，获取在SL上报告的与SL传输有关的HARQ-ACK信息，并由此确定相应的在UL上报告的与SL传输有关的HARQ-ACK信息。
●无PSFCH接收(absence of PSFCH reception，或者absence of PSFCH receptions)。例如，由于执行其他更高优先级的任务(如执行更高优先级的UL传输)而无法在本来需要接收PSFCH的时隙中执行PSFCH的接收。又如，调度直行链路上的数据传输的SCI指示不需要接收所述数据传输的UE发送HARQ-ACK(例如通过PSFCH携带的HARQ-ACK)。又如，由于未检测到调度相应的PSCCH和/或PSSCH传输的DCI(例如DCI格式3_0)而未发送PSCCH和/或PSSCH，相应地也没有接收PSFCH。又如，相应的资源池中没有配置PSFCH资源。又如，在相应的PSFCH接收时机未检测到PSFCH。
●PSCCH和/或PSSCH发送。例如，TX UE在基站通过DCI指示的SL资源上发送PSCCH和/或PSSCH。
●无PSCCH和/或PSSCH发送。例如，由于执行其他更高优先级的任务(如执行更高优先级的UL传输)而无法在本来需要发送PSCCH和/或PSSCH的时隙中执行PSCCH和/或PSSCH的发送。又如，由于未检测到调度相应的PSCCH和/或PSSCH传输的DCI(例如DCI格式3_0)而未发送PSCCH和/或PSSCH。
作为对比，UE还可以在UL资源(例如PUCCH资源，又如PUSCH 资源)上报告与DL传输有关的HARQ-ACK信息(相应地，使用与DL传输有关的HARQ-ACK码本)，用于反馈下行链路上的数据和/或控制信息的发送和/或接收情况(例如，发送和/或接收状态；又如，发送和/或接收结果；又如，未执行发送；又如，未执行接收；等等)。这种HARQ-ACK信息可以称为“在UL上报告的与DL传输有关的HARQ-ACK信息”。具体地，在UL上报告的与DL传输有关的HARQ-ACK信息可以来自(或者说基于)UE在下行链路上的一些接收操作，例如包括下面中的一项或多项：
●有相应的PDCCH接收的PDSCH接收。
●无相应的PDCCH接收的PDSCH接收(例如，SPS PDSCH接收)。
●PDCCH接收。例如，PDCCH所携带的DCI中指示“SPS PDSCH释放”指示。又如，PDCCH所携带的DCI中指示“SCell休眠”(SCell dormancy)。
在本发明的所有实施例和实施方式中，如未特别说明，“HARQ-ACK信息”指的是在UL上报告的与SL传输有关的HARQ-ACK信息。
对结束于时隙n的
Figure PCTCN2021120203-appb-000095
个PSFCH接收时机(例如，所述时隙n是所述
Figure PCTCN2021120203-appb-000096
个PSFCH接收时机分别所在的时隙中的最后一个)，UE在时隙n+k内的一个UL传输(例如PUCCH传输，又如PUSCH传输)中报告(或者说提供)相应的HARQ-ACK信息。此时，可以称所述时隙n到所述时隙n+k之间的偏移(即“k”)是一个“PSFCH到上行HARQ反馈之间的定时(timing)”值。其中，
●可选地，
Figure PCTCN2021120203-appb-000097
是一个整数，且
Figure PCTCN2021120203-appb-000098
例如，
Figure PCTCN2021120203-appb-000099
又如
Figure PCTCN2021120203-appb-000100
又如，
Figure PCTCN2021120203-appb-000101
●可选地，所述时隙n和所述时隙n+k按照所述UL传输所使用的时隙(即按照所述UL传输所使用SCS和/或CP)进行编号。或者说，所述时隙n和所述时隙n+k所对应的SCS和/或CP分别是所述UL传输所使用的SCS和/或CP。
●可选地，所述
Figure PCTCN2021120203-appb-000102
个PSFCH接收时机(或者所述
Figure PCTCN2021120203-appb-000103
个PSFCH接收时机所在的时隙)分别关联同一个DCI(或者说 同一个DCI传输)调度的
Figure PCTCN2021120203-appb-000104
个PSSCH传输。其中，
◆可选地，所述偏移量“k”的值可以是所述DCI中的“PSFCH-to-HARQ feedback timing indicator”字段指示的、由参数sl-PSFCH-ToPUCCH所配置的集合中的一个值。
◆可选地，
Figure PCTCN2021120203-appb-000105
等于所述DCI调度的PSSCH传输的个数。
◆可选地，
Figure PCTCN2021120203-appb-000106
是一个预定义的整数。例如
Figure PCTCN2021120203-appb-000107
可选地，此时，所述
Figure PCTCN2021120203-appb-000108
个PSSCH传输可以是所述DCI调度的任意一个PSSCH传输。
●可选地，所述
Figure PCTCN2021120203-appb-000109
个PSFCH接收时机(或者所述
Figure PCTCN2021120203-appb-000110
个PSFCH接收时机所在的时隙)分别关联同一个SL配置许可在同一个周期内调度的
Figure PCTCN2021120203-appb-000111
个PSSCH传输。其中，
◆可选地，对于类型-1 SL配置许可，所述偏移量“k”可以通过参数sl-PSFCH-ToPUCCH-CG-Typel进行配置。
◆可选地，例如对类型-2 SL配置许可，所述偏移量“k”可以由激活所述SL配置许可的DCI中的“PSFCH-to-HARQ feedback timing indicator”字段指示(例如，所指示的值是参数sl-PSFCH-ToPUCCH所配置的集合中的一个值)。
◆可选地，
Figure PCTCN2021120203-appb-000112
等于所述SL配置许可在同一个周期内调度的PSSCH传输的个数。
◆可选地，
Figure PCTCN2021120203-appb-000113
是一个预定义的整数。例如
Figure PCTCN2021120203-appb-000114
可选地，此时，所述
Figure PCTCN2021120203-appb-000115
个PSSCH传输可以是所述SL配置许可在同一个周期内调度的任意一个PSSCH传输。
●可选地，k＝0表示所述UL传输的最后一个时隙和所述
Figure PCTCN2021120203-appb-000116
个PSFCH接收时机中的最后一个PSFCH接收时机重叠(例如，在时间上重叠)。
●可选地，k总是大于0。例如，UE可以认为k＝0是一种错误的 配置或指示。又如，若k＝0，则UE将其值替换为另一个预定义或配置或预配置的值(例如将k的值替换为1)。
●可选地，所述UE可以假定所述UL传输的资源(例如，PUCCH资源，又如，PUSCH资源)的起始时间不早于所述
Figure PCTCN2021120203-appb-000117
个PSFCH接收时机中的最后一个PSFCH接收时机的最后一个符号结束后(N+1)·(2048+144)·κ·2 -μ·T c秒。其中，
◆可选地，T c＝1/(Δf max·N f)，其中Δf max＝480·10 3Hz，N f＝4096。
◆可选地，κ＝T s/T c＝64，其中T s＝1/(Δf ref·N f，ref)，Δf ref＝15·10 3Hz，N f，ref＝2048。
◆可选地，μ＝min(μ SL，μ UL)，其中，μ sL是相应的SL BWP的SCS配置，μ UL是一个参考小区的有效上行BWP(active UL BWP)的SCS配置，其中所述参考小区可以是所述UE的主小区(例如所述UE的MCG中的主小区，Primary Cell，PCell)，或所述UE的主SCG小区(Primary SCG Cell，PSCell)，或所述UE的特别小区(Special Cell，SPCell)，或所述UE的PUCCH辅小区(PUCCH SCell)，或MCG中的任意一个小区，或SCG中的任意一个小区，或所述UE配置的任意一个小区，或所述UL传输所在的小区，或按其他方式定义或配置的一个小区。
◆可选地，N的取值与μ有关。例如，对μ＝0，N可以预定义为{6，7，8，9，10，11，12，13，14，15，16，17}中的一个值。又如，对μ＝1，N可以预定义为{8，9，10，11，12，13，14，15，16，17，18，19，20，21，22，23，24，25，26，27}中的一个值。又如，对μ＝2， N可以预定义为{12，13，14，15，16，17，18，19，20，21，22，23，24，25，26，27，28，29，30，31}中的一个值。又如，对μ＝3，N可以预定义为{14，15，16，17，18，19，20，21，22，23，24，25，26，27，28，29，30，31}中的一个值。
UE在时隙n+k生成(或提供，或报告)的一个或多个HARQ-ACK信息比特可以按一定的顺序和/或结构和/或组织方式包含在一个“HARQ-ACK码本”(或者说，“HARQ-ACK码本”的一个实例)中。一个HARQ-ACK码本中的HARQ-ACK信息比特可以复用在一个PUCCH传输上，或者复用在一个PUSCH传输上。在本发明的所有实施例和实施方式中，如未特别说明，“HARQ-ACK码本”指的是包含“在UL上报告的与SL传输有关的HARQ-ACK信息”的HARQ-ACK码本。
UE可以配置为按类型-1(Type-1)HARQ-ACK码本或者按类型-2(Type-2)HARQ-ACK码本报告HARQ-ACK信息。类型-1 HARQ-ACK码本的大小可以只取决于半静态的配置信息(例如RRC层的配置信息)；类型-2 HARQ-ACK码本的大小可以动态变化(例如基于检测到的与所述HARQ-ACK码本关联的DCI的个数等)，例如在两个不同的PUCCH时隙上传输的基于类型-2 HARQ-ACK码本中的HARQ-ACK信息比特的数量可以不同。若在所述PUCCH资源所在的时隙上存在PUSCH传输，UE可以把所述HARQ-ACK信息复用在所述PUSCH传输上。
可选地，一个HARQ-ACK码本内的HARQ-ACK信息可以只和一个SL配置许可关联。
可选地，一个HARQ-ACK码本内的HARQ-ACK信息可以和一个或多个SL配置许可关联。
一个HARQ-ACK码本内的HARQ-ACK信息可以和一个或多个DCI关联。其中，所述一个或多个DCI中的每一个可以用于一个或多个与直行链路上发送的数据和/或控制信息有关的用途，例如包括下面中的一项或多项：
●调度PSCCH和/或PSSCH传输。此时，可选地，所述DCI的CRC使用SL-RNTI或SL-CS-RNTI加扰。
●指示SL配置许可(例如类型-2 SL配置许可)激活。
●指示SL配置许可(例如类型-2 SL配置许可)释放。
[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和步骤S103。
具体地，在步骤S101，确定与SL传输和/或接收有关的信息。
可选地，所述“与SL传输和/或接收有关的信息”可以是
Figure PCTCN2021120203-appb-000118
个PSSCH传输(例如记为
Figure PCTCN2021120203-appb-000119
)，和/或
Figure PCTCN2021120203-appb-000120
个PSSCH传输时机(例如记为
Figure PCTCN2021120203-appb-000121
)，和/或
Figure PCTCN2021120203-appb-000122
个PSSCH传输(或者
Figure PCTCN2021120203-appb-000123
个PSSCH传输时机)分别所在的时隙(例如记为
Figure PCTCN2021120203-appb-000124
)，和/或
Figure PCTCN2021120203-appb-000125
个PSFCH接收时机(例如记为
Figure PCTCN2021120203-appb-000126
)，和/或
Figure PCTCN2021120203-appb-000127
个PSFCH接收时机分别所在的时隙(例如记为
Figure PCTCN2021120203-appb-000128
)。其中，
●可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000129
是所述PSSCH传输
Figure PCTCN2021120203-appb-000130
分别所在的PSSCH传输时机。
●可选地，所述时隙
Figure PCTCN2021120203-appb-000131
是所述PSSCH传输
Figure PCTCN2021120203-appb-000132
(或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000133
)分别所在的时隙。
●可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000134
是所述PSSCH传输
Figure PCTCN2021120203-appb-000135
(或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000136
)分别对应的PSFCH接收时机。
●可选地，所述时隙
Figure PCTCN2021120203-appb-000137
是所述PSFCH接收 时机
Figure PCTCN2021120203-appb-000138
分别所在的时隙。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000139
可以可以表述为“有相应的(或者关联的)PSFCH接收时机
Figure PCTCN2021120203-appb-000140
的PSSCH传输
Figure PCTCN2021120203-appb-000141
”。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000142
可以表述为“有相应的(或者关联的)PSSCH传输
Figure PCTCN2021120203-appb-000143
的PSFCH接收时机
Figure PCTCN2021120203-appb-000144
”。
可选地，所述
Figure PCTCN2021120203-appb-000145
与“最大预留SL传输个数”有关(例如，所述
Figure PCTCN2021120203-appb-000146
小于或等于所述“最大预留SL传输个数”)。其中，可选地，所述“最大预留SL传输个数”可以是一个配置或预配置的值(例如通过参数sl_MaxNumPerReserve进行配置)。例如，若所述参数sl_MaxNumPerReserve等于2，则所述
Figure PCTCN2021120203-appb-000147
等于1或2。又如，若所述参数sl_MaxNumPerReserve等于3，则所述
Figure PCTCN2021120203-appb-000148
等于1或2或3。
可选地，所述
Figure PCTCN2021120203-appb-000149
是一个预定义的常数。例如，
Figure PCTCN2021120203-appb-000150
又如，
Figure PCTCN2021120203-appb-000151
又如，
Figure PCTCN2021120203-appb-000152
可选地，所述
Figure PCTCN2021120203-appb-000153
是一个配置或预配置的值。
可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000154
属于第一PSSCH传输时机集合(例如记为
Figure PCTCN2021120203-appb-000155
)。
可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000156
按时间先后顺序出现，即a 0是最早出现的PSSCH传输时机，
Figure PCTCN2021120203-appb-000157
是最晚出现的PSSCH传输时机。
可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000158
按时间的逆序出现， 即a 0是最晚出现的PSSCH传输时机，
Figure PCTCN2021120203-appb-000159
是最早出现的PSSCH传输时机。
可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000160
各不相同。
可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000161
中的一个或多个可以相同。例如，a 0＝a 1(可选地，此时可以认为
Figure PCTCN2021120203-appb-000162
中只有
Figure PCTCN2021120203-appb-000163
个PSSCH传输时机)。又如，
Figure PCTCN2021120203-appb-000164
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000165
对应同一个PSSCH传输时机)。
可选地，所述时隙
Figure PCTCN2021120203-appb-000166
按时间先后顺序出现，即
Figure PCTCN2021120203-appb-000167
是最早出现的时隙，
Figure PCTCN2021120203-appb-000168
是最晚出现的时隙。
可选地，所述时隙
Figure PCTCN2021120203-appb-000169
按时间的逆序出现，即
Figure PCTCN2021120203-appb-000170
是最晚出现的时隙，
Figure PCTCN2021120203-appb-000171
是最早出现的时隙。
可选地，所述时隙
Figure PCTCN2021120203-appb-000172
各不相同。
可选地，所述时隙
Figure PCTCN2021120203-appb-000173
中的一个或多个可以相同。例如，
Figure PCTCN2021120203-appb-000174
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000175
中只有
Figure PCTCN2021120203-appb-000176
个时隙)。又如，
Figure PCTCN2021120203-appb-000177
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000178
对应同一个时隙)。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000179
属于第一PSFCH接收时机集合(例如记为
Figure PCTCN2021120203-appb-000180
)。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000181
按时间先后顺序出现，即b 0是最早出现的PSFCH接收时机，
Figure PCTCN2021120203-appb-000182
是最晚出现的PSFCH接收时机。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000183
按时间的逆序出现， 即b 0是最晚出现的PSFCH接收时机，
Figure PCTCN2021120203-appb-000184
是最早出现的PSFCH接收时机。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000185
各不相同。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000186
中的一个或多个可以相同。例如，b 0＝b 1(可选地，此时可以认为
Figure PCTCN2021120203-appb-000187
中只有
Figure PCTCN2021120203-appb-000188
个PSFCH接收时机；可选地，相应地，所述PSSCH传输
Figure PCTCN2021120203-appb-000189
或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000190
对应
Figure PCTCN2021120203-appb-000191
个PSFCH接收时机)。又如，
Figure PCTCN2021120203-appb-000192
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000193
对应同一个PSFCH接收时机；可选地，相应地，所述PSSCH传输
Figure PCTCN2021120203-appb-000194
或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000195
对应同一个PSFCH接收时机)。
可选地，所述时隙
Figure PCTCN2021120203-appb-000196
按时间先后顺序出现，即
Figure PCTCN2021120203-appb-000197
是最早出现的时隙，
Figure PCTCN2021120203-appb-000198
是最晚出现的时隙。
可选地，所述时隙
Figure PCTCN2021120203-appb-000199
按时间的逆序出现，即
Figure PCTCN2021120203-appb-000200
是最晚出现的时隙，
Figure PCTCN2021120203-appb-000201
是最早出现的时隙。
可选地，所述时隙
Figure PCTCN2021120203-appb-000202
各不相同。
可选地，所述时隙
Figure PCTCN2021120203-appb-000203
中的一个或多个可以相同。例如，
Figure PCTCN2021120203-appb-000204
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000205
中只有
Figure PCTCN2021120203-appb-000206
个时隙)。又如，
Figure PCTCN2021120203-appb-000207
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000208
对应同一个时隙)。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000209
(或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000210
或者所述PSFCH接收时机
Figure PCTCN2021120203-appb-000211
)对应同 一个“PSFCH到HARQ反馈的定时”(PSFCH-to-HARQ-feedback timing)值，例如记为k。其中，
●可选地，k的单位可以是时隙。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000212
由第一DCI调度。其中，
●可选地，所述第一DCI对应DCI格式3_0。
●可选地，所述k由所述第一DCI指示(例如，由所述第一DCI中的PSFCH-to-HARQ_feedback timing indicator字段指示)。
●可选地，所述
Figure PCTCN2021120203-appb-000213
由所述第一DCI指示(例如，由所述第一DCI中的Time resource assignment字段指示)。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000214
对应(或者说属于)第一类型-2 SL配置许可，或者说所述PSSCH传输
Figure PCTCN2021120203-appb-000215
由所述第一类型-2 SL配置许可调度，或者说所述PSSCH传输
Figure PCTCN2021120203-appb-000216
由所述第一类型-2 SL配置许可提供(或者说分配)资源。其中，
●可选地，所述第一类型-2 SL配置许可由第二DCI激活。其中，
◆可选地，所述第二DCI对应DCI格式3_0。
◆可选地，所述k由所述第二DCI指示(例如，由所述第二DCI中的PSFCH-to-HARQ_feedback timing indicator字段指示)。
◆可选地，所述
Figure PCTCN2021120203-appb-000217
由所述第二DCI指示(例如，由所述第二DCI中的Time resource assignment字段指示)。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000218
对应(或者说属于)第一类型-1 SL配置许可，或者说所述PSSCH传输
Figure PCTCN2021120203-appb-000219
由所述第一 类型-1 SL配置许可调度，或者说所述PSSCH传输
Figure PCTCN2021120203-appb-000220
由所述第一类型-1 SL配置许可提供(或者说分配)资源。其中，
●可选地，所述k由所述第一类型-1 SL配置许可的参数提供(例如，由参数sl-PSFCH-ToPUCCH-CG-Type1提供)。
●可选地，所述
Figure PCTCN2021120203-appb-000221
由所述第一类型-1 SL配置许可的参数提供(例如，由参数sl-TimeResourceCG-Type1提供)。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000222
(或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000223
或者所述PSFCH接收时机
Figure PCTCN2021120203-appb-000224
)分别对应“PSFCH到HARQ反馈的定时”值
Figure PCTCN2021120203-appb-000225
其中，
●可选地，
Figure PCTCN2021120203-appb-000226
的单位可以是时隙。
●可选地，
Figure PCTCN2021120203-appb-000227
中的零个或一个或多个(例如全部)可以相等。
●可选地，对所述PSSCH传输s i
Figure PCTCN2021120203-appb-000228
k＝k i。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000229
可以分为三个部分，其中第一部分(例如包含零个PSSCH传输，又如包含一个PSSCH传输，又如包含多个PSSCH传输)由所述第一DCI调度，第二部分(例如包含零个PSSCH传输，又如包含一个PSSCH传输，又如包含多个PSSCH传输)对应所述第一类型-2 SL配置许可，第三部分(例如包含零个PSSCH传输，又如包含一个PSSCH传输，又如包含多个PSSCH传输)对应所述第一类型-1 SL配置许可。其中，
●可选地，若所述第一部分包含零个PSSCH传输，则所述第一部分不存在。
●可选地，若所述第二部分包含零个PSSCH传输，则所述第二部分不存在。
●可选地，若所述第三部分包含零个PSSCH传输，则所述第三部分不存在。
●可选地，在适用的情况下，所述k由所述第一DCI指示(例如，由所述第一DCI中的PSFCH-to-HARQ_feedback timing indicator字段指示)，或由所述第二DCI指示(例如，由所述第二DCI中的PSFCH-to-HARQ_feedback timing indicator字段指示)，或由所述第一类型-1 SL配置许可的参数提供(例如，由参数sl-PSFCH-ToPUCCH-CG-Type1提供)。
●可选地，在适用的情况下，所述
Figure PCTCN2021120203-appb-000230
分别由相应的PSSCH传输所关联的DCI(例如，所述第一DCI，又如，所述第二DCI)或类型-1 SL配置许可(例如，所述第一类型-1 SL配置许可)指示或提供。
●可选地，所述
Figure PCTCN2021120203-appb-000231
由所述第一DCI指示(例如，由所述第一DCI中的Time resource assignment字段指示)，或者由所述第二DCI指示(例如，由所述第二DCI中的Time resource assignment字段指示)，或者由所述第一类型-1 SL配置许可的参数提供(例如，由参数sl-TimeResourceCG-Type1提供)。
此外，在步骤S103，报告HARQ-ACK信息。
可选地，所述HARQ-ACK信息是为所述“与SL传输和/或接收有关的信息”报告的HARQ-ACK信息。
可选地，所述HARQ-ACK信息包含(或者说复用)在一个HARQ-ACK码本(例如，一个类型-1 HARQ-ACK码本，又如，一个类型-2 HARQ-ACK码本)中。
可选地，所述HARQ-ACK信息包含
Figure PCTCN2021120203-appb-000232
个HARQ-ACK信息比特。其中，
●可选地，
Figure PCTCN2021120203-appb-000233
●可选地，
Figure PCTCN2021120203-appb-000234
是个预定义的常数。例如
Figure PCTCN2021120203-appb-000235
●可选地，
Figure PCTCN2021120203-appb-000236
是一个配置的值。
●可选地，
Figure PCTCN2021120203-appb-000237
是一个预配置的值。
可选地，仅在第一HARQ-ACK码本中为所述“与SL传输和/或接收有关的信息”报告HARQ-ACK信息。其中，
●可选地，所述第一HARQ-ACK码本包含(或者说携带)在时隙n+k中的一个UL传输中。其中，
◆可选地，所述UL传输可以是PUCCH传输。
◆可选地，所述UL传输可以是PUSCH传输。
●可选地，所述第一HARQ-ACK码本是一个类型-1 HARQ-ACK码本。
●可选地，所述第一HARQ-ACK码本是一个类型-2 HARQ-ACK码本。
●可选地，所述第一HARQ-ACK码本是根据所述第一PSSCH传输时机集合
Figure PCTCN2021120203-appb-000238
生成的。
●可选地，所述第一HARQ-ACK码本是根据所述第一PSFCH接 收时机集合
Figure PCTCN2021120203-appb-000239
生成的。
可选地，若在时隙m中为所述“与SL传输和/或接收有关的信息”报告HARQ-ACK信息，且m＝n+k，则根据所述PSFCH接收时机
Figure PCTCN2021120203-appb-000240
上的PSFCH接收的结果确定相应的HARQ-ACK信息比特的值(例如，根据一个或多个PSFCH接收时机上的PSFCH接收结果，将某个相应的HARQ-ACK信息比特的值设置为ACK。又如，根据一个或多个PSFCH接收时机上的PSFCH接收结果，将某个相应的HARQ-ACK信息比特的值设置为NACK)。
可选地，若在时隙m中为所述“与SL传输和/或接收有关的信息”报告HARQ-ACK信息，且m＝n+k，则根据所述PSSCH传输
Figure PCTCN2021120203-appb-000241
的优先级值(例如，由相应的SCI中的Priority字段指示的优先级值)确定相应的HARQ-ACK信息比特的优先级值。
可选地，若满足第一HARQ-ACK信息上报条件，则执行第一HARQ-ACK信息生成操作。其中，
●可选地，所述第一HARQ-ACK信息上报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)：
◆在时隙m中报告所述HARQ-ACK信息，其中，m≠n+k。
◆所述PSSCH传输
Figure PCTCN2021120203-appb-000242
由DCI(例如，所述第一DCI)调度，且所述DCI不提供PUCCH资源。
◆所述PSSCH传输
Figure PCTCN2021120203-appb-000243
对应一个类型-2 SL配置许可(例如，所述第一类型-2 SL配置许可)，且激活所述类 型-2 SL配置许可的DCI(例如，所述第二DCI)不提供PUCCH资源。
◆所述PSSCH传输
Figure PCTCN2021120203-appb-000244
对应一个类型-1 SL配置许可(例如，所述第一类型-1 SL配置许可)，且所述类型-1 SL配置许可不提供PUCCH资源。
◆所述PSSCH传输
Figure PCTCN2021120203-appb-000245
所对应的DCI(如果有的话。例如，所述第一DCI)和/或类型-2 SL配置许可(如果有的话。例如，所述第一类型-2 SL配置许可)和/或类型-1 SL配置许可(如果有的话。例如，所述第一类型-1 SL配置许可)不提供PUCCH资源。
◆所述PSSCH传输
Figure PCTCN2021120203-appb-000246
所关联的一个或多个(例如全部)SCI指示对其所调度的PSSCH传输禁用HARQ-ACK反馈(例如通过将“HARQ feedback enabled/disabled indicator”字段的值设置为1)。
◆所述PSSCH传输
Figure PCTCN2021120203-appb-000247
不对应任何PSFCH接收时机。
◆所述PSSCH传输
Figure PCTCN2021120203-appb-000248
不对应任何PSFCH接收。
◆所述HARQ-ACK信息不对应任何PSSCH传输。
◆所述HARQ-ACK信息不对应任何PSFCH接收时机。
◆所述HARQ-ACK信息不对应任何PSFCH接收。
●可选地，所述第一HARQ-ACK信息生成操作可以包括下面中的一项或多项：
◆将所述
Figure PCTCN2021120203-appb-000249
个HARQ-ACK信息比特中的每一个的值(或者说，HARQ-ACK值)设置为第一缺省HARQ-ACK值。
◆将所述
Figure PCTCN2021120203-appb-000250
个HARQ-ACK信息比特中的每一个的优先级值设置为第一缺省HARQ-ACK优先级值。
可选地，在本发明的实施例一中，n可以按下面中的一种方式定义：
●
Figure PCTCN2021120203-appb-000251
●
Figure PCTCN2021120203-appb-000252
●n等于
Figure PCTCN2021120203-appb-000253
中的任意一个。可选地，
Figure PCTCN2021120203-appb-000254
●
Figure PCTCN2021120203-appb-000255
●
Figure PCTCN2021120203-appb-000256
●n等于
Figure PCTCN2021120203-appb-000257
中的任意一个。可选地，
Figure PCTCN2021120203-appb-000258
●对所述PSSCH传输s i
Figure PCTCN2021120203-appb-000259
●对所述PSSCH传输s i
Figure PCTCN2021120203-appb-000260
可选地，在本发明的实施例一中，所述PSSCH传输
Figure PCTCN2021120203-appb-000261
所分别对应的n+k的值相等。
可选地，在本发明的实施例一中，DCI(例如DCI格式3_0)中的PUCCH resource indicator字段的一个预定义的值和PSFCH-to-HARQ feedback timing indicator字段的一个预定义的值的组合表示所述DCI不提供PUCCH资源。例如，若所述DCI中的PUCCH resource indicator字段的值和PSFCH-to-HARQ feedback timing indicator字段的值都是0，则所述DCI不提供PUCCH资源。
可选地，在本发明的实施例一中，若一个类型-1 SL配置许可满足第一类型-1 SL配置许可条件，则所述类型-1 SL配置许可不提供PUCCH资源。其中，可选地，所述第一类型-1 SL配置许可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)：
●所述类型-1 SL配置许可的参数sl-PSFCH-ToPUCCH-CG-Type1已配置。
●所述类型-1 SL配置许可的参数sl-PSFCH-ToPUCCH-CG-Type1的值是一个预定义的值(例如0)。
●所述类型-1 SL配置许可的参数sl-PSFCH-ToPUCCH-CG-Type1未配置。
●所述类型-1 SL配置许可的参数sl-N1PUCCH-AN已配置。
●所述类型-1 SL配置许可的参数sl-N1PUCCH-AN的值是一个预定义的值(例如0)。
●所述类型-1 SL配置许可的参数sl-N1PUCCH-AN未配置。
这样，根据实施例一所述，本发明提供了一种方法，通过设置例外情况下的HARQ-ACK信息比特的值以及相应的优先级值，使得上报的HARQ-ACK信息完整地反映直行链路的HARQ-ACK反馈情况，以及携带所述HARQ-ACK信息的上行信道的优先级准确地反映了直行链路上的数据传输的优先级。
[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和步骤S203。
具体地，在步骤S201，确定与SL传输和/或接收有关的信息。
可选地，所述“与SL传输和/或接收有关的信息”可以是
Figure PCTCN2021120203-appb-000262
个PSSCH传输(例如记为
Figure PCTCN2021120203-appb-000263
)，和/或
Figure PCTCN2021120203-appb-000264
个PSSCH传输时机(例如记为
Figure PCTCN2021120203-appb-000265
)，和/或
Figure PCTCN2021120203-appb-000266
个PSSCH传输(或者
Figure PCTCN2021120203-appb-000267
个PSSCH传输时机)分别所在的时隙(例如记为
Figure PCTCN2021120203-appb-000268
)，和/或
Figure PCTCN2021120203-appb-000269
个PSFCH接收时机(例如记为
Figure PCTCN2021120203-appb-000270
)，和/或
Figure PCTCN2021120203-appb-000271
个PSFCH接收时机分别所在的时隙(例如记为
Figure PCTCN2021120203-appb-000272
)。其中，
●可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000273
是所述PSSCH传输
Figure PCTCN2021120203-appb-000274
分别所在的PSSCH传输时机。
●可选地，所述时隙
Figure PCTCN2021120203-appb-000275
是所述PSSCH传输
Figure PCTCN2021120203-appb-000276
(或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000277
)分别所在的时隙。
●可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000278
是所述PSSCH传输
Figure PCTCN2021120203-appb-000279
(或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000280
)分别对应的PSFCH接收时机。
●可选地，所述时隙
Figure PCTCN2021120203-appb-000281
是所述PSFCH接收时机
Figure PCTCN2021120203-appb-000282
分别所在的时隙。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000283
可以可以表述为“有相应的(或者关联的)PSFCH接收时机
Figure PCTCN2021120203-appb-000284
的PSSCH传输
Figure PCTCN2021120203-appb-000285
”。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000286
可以表述为“有相应 的(或者关联的)PSSCH传输
Figure PCTCN2021120203-appb-000287
的PSFCH接收时机
Figure PCTCN2021120203-appb-000288
”。
可选地，所述
Figure PCTCN2021120203-appb-000289
与“最大预留SL传输个数”有关(例如，所述
Figure PCTCN2021120203-appb-000290
小于或等于所述“最大预留SL传输个数”)。其中，可选地，所述“最大预留SL传输个数”可以是一个配置或预配置的值(例如通过参数sl_MaxNumPerReserve进行配置)。例如，若所述参数sl_MaxNumPerReserve等于2，则所述
Figure PCTCN2021120203-appb-000291
等于1或2。又如，若所述参数sl_MaxNumPerReserve等于3，则所述
Figure PCTCN2021120203-appb-000292
等于1或2或3。
可选地，所述
Figure PCTCN2021120203-appb-000293
是一个预定义的常数。例如，
Figure PCTCN2021120203-appb-000294
又如，
Figure PCTCN2021120203-appb-000295
又如，
Figure PCTCN2021120203-appb-000296
可选地，所述
Figure PCTCN2021120203-appb-000297
是一个配置或预配置的值。
可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000298
属于第一PSSCH传输时机集合(例如记为
Figure PCTCN2021120203-appb-000299
)。
可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000300
按时间先后顺序出现，即a 0是最早出现的PSSCH传输时机，
Figure PCTCN2021120203-appb-000301
是最晚出现的PSSCH传输时机。
可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000302
按时间的逆序出现，即a 0是最晚出现的PSSCH传输时机，
Figure PCTCN2021120203-appb-000303
是最早出现的PSSCH传输时机。
可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000304
各不相同。
可选地，所述PSSCH传输时机
Figure PCTCN2021120203-appb-000305
中的一个或多个可以相同。例如，a 0＝a 1(可选地，此时可以认为
Figure PCTCN2021120203-appb-000306
中只有
Figure PCTCN2021120203-appb-000307
个PSSCH传输时机)。又如，
Figure PCTCN2021120203-appb-000308
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000309
对应同一个PSSCH传输时机)。
可选地，所述时隙
Figure PCTCN2021120203-appb-000310
按时间先后顺序出现，即
Figure PCTCN2021120203-appb-000311
是最早出现的时隙，
Figure PCTCN2021120203-appb-000312
是最晚出现的时隙。
可选地，所述时隙
Figure PCTCN2021120203-appb-000313
按时间的逆序出现，即
Figure PCTCN2021120203-appb-000314
是最晚出现的时隙，
Figure PCTCN2021120203-appb-000315
是最早出现的时隙。
可选地，所述时隙
Figure PCTCN2021120203-appb-000316
各不相同。
可选地，所述时隙
Figure PCTCN2021120203-appb-000317
中的一个或多个可以相同。例如，
Figure PCTCN2021120203-appb-000318
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000319
由只有
Figure PCTCN2021120203-appb-000320
个时隙)。又如，
Figure PCTCN2021120203-appb-000321
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000322
对应同一个时隙)。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000323
属于第一PSFCH接收时机集合(例如记为
Figure PCTCN2021120203-appb-000324
)。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000325
按时间先后顺序出现，即b 0是最早出现的PSFCH接收时机，
Figure PCTCN2021120203-appb-000326
是最晚出现的PSFCH接收时机。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000327
按时间的逆序出现，即b 0是最晚出现的PSFCH接收时机，
Figure PCTCN2021120203-appb-000328
是最早出现的PSFCH接收时机。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000329
各不相同。
可选地，所述PSFCH接收时机
Figure PCTCN2021120203-appb-000330
中的一个或多个可以相同。例如，b 0＝b 1(可选地，此时可以认为
Figure PCTCN2021120203-appb-000331
中只有
Figure PCTCN2021120203-appb-000332
个PSFCH接收时机；可选地，相应地，所述PSSCH传输
Figure PCTCN2021120203-appb-000333
或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000334
对应
Figure PCTCN2021120203-appb-000335
个PSFCH接收时机)。又如，
Figure PCTCN2021120203-appb-000336
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000337
对应同一个PSFCH接收时机；可选地，相应地，所述PSSCH传输
Figure PCTCN2021120203-appb-000338
或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000339
对应同一个PSFCH接收时机)。
可选地，所述时隙
Figure PCTCN2021120203-appb-000340
按时间先后顺序出现，即
Figure PCTCN2021120203-appb-000341
是最早出现的时隙，
Figure PCTCN2021120203-appb-000342
是最晚出现的时隙。
可选地，所述时隙
Figure PCTCN2021120203-appb-000343
按时间的逆序出现，即
Figure PCTCN2021120203-appb-000344
是最晚出现的时隙，
Figure PCTCN2021120203-appb-000345
是最早出现的时隙。
可选地，所述时隙
Figure PCTCN2021120203-appb-000346
各不相同。
可选地，所述时隙
Figure PCTCN2021120203-appb-000347
中的一个或多个可以相同。例如，
Figure PCTCN2021120203-appb-000348
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000349
由只有
Figure PCTCN2021120203-appb-000350
个时隙)。又如，
Figure PCTCN2021120203-appb-000351
(可选地，此时可以认为
Figure PCTCN2021120203-appb-000352
对应同一个时隙)。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000353
(或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000354
或者所述PSFCH接收时机
Figure PCTCN2021120203-appb-000355
)对应同一个“PSFCH到HARQ反馈的定时”(PSFCH-to-HARQ-feedback timing)值，例如记为k。其中，
●可选地，k的单位可以是时隙。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000356
由第一DCI调度。其中，
●可选地，所述第一DCI对应DCI格式3_0。
●可选地，所述第一DCI在第一PDCCH监听时机中传输(或者说所述UE在第一PDCCH监听时机中检测到所述第一DCI)。
●可选地，所述k由所述DCI指示(例如，由所述DCI中的PSFCH-to-HARQ_feedback timing indicator字段指示)。
●可选地，所述
Figure PCTCN2021120203-appb-000357
由所述DCI指示(例如，由所述DCI中的Time resource assignment字段指示)。
可选地，所述PSSCH传输
Figure PCTCN2021120203-appb-000358
(或者所述PSSCH传输时机
Figure PCTCN2021120203-appb-000359
或者所述PSFCH接收时机
Figure PCTCN2021120203-appb-000360
)分别对应“PSFCH到HARQ反馈的定时”值
Figure PCTCN2021120203-appb-000361
其中，
●可选地，
Figure PCTCN2021120203-appb-000362
的单位可以是时隙。
●可选地，
Figure PCTCN2021120203-appb-000363
中的零个或一个或多个(例如全部)可以相等。
●可选地，对所述PSSCH传输s i
Figure PCTCN2021120203-appb-000364
k＝k i。
●可选地，在适用的情况下，所述
Figure PCTCN2021120203-appb-000365
分别由相应的PSSCH传输所关联的DCI指示(例如，由所述DCI中的PSFCH-to-HARQ_feedback timing indicator字段指示)。
此外，在步骤S203，生成HARQ-ACK信息。
可选地，所述HARQ-ACK信息是为所述“与SL传输和/或接收有关的信息”生成的HARQ-ACK信息。
可选地，所述HARQ-ACK信息包含
Figure PCTCN2021120203-appb-000366
个HARQ-ACK信息比特。其中，
●可选地，
Figure PCTCN2021120203-appb-000367
●可选地，
Figure PCTCN2021120203-appb-000368
是一个预定义的常数。例如
Figure PCTCN2021120203-appb-000369
●可选地，
Figure PCTCN2021120203-appb-000370
是一个配置的值。
●可选地，
Figure PCTCN2021120203-appb-000371
是一个预配置的值。
可选地，所述HARQ-ACK信息包含(或者说复用)在第一HARQ-ACK码本中。其中，
●可选地，所述第一HARQ-ACK码本包含(或者说复用，或者说携带)在一个PUSCH传输中。其中，
◆可选地，所述PUSCH传输在时隙n+k中。
◆可选地，所述PUSCH传输由第二DCI调度。其中，
○可选地，所述第二DCI对应DCI格式0_0。
○可选地，所述第二DCI对应DCI格式0_1。
○可选地，所述第二DCI对应DCI格式0_2。
○可选地，所述第二DCI在第二PDCCH监听时机中传输(或者说所述UE在第二PDCCH监听时机中检测到所述第二DCI)。
●可选地，所述第一HARQ-ACK码本是一个类型-1 HARQ-ACK码本。
●可选地，所述第一HARQ-ACK码本是一个类型-2 HARQ-ACK码本。
●可选地，所述第一HARQ-ACK码本是根据所述第一PSSCH传输时机集合
Figure PCTCN2021120203-appb-000372
生成的。
●可选地，所述第一HARQ-ACK码本是根据所述第一PSFCH接收时机集合
Figure PCTCN2021120203-appb-000373
生成的。
可选地，若满足第一PDCCH监听条件，则执行第一HARQ-ACK信 息生成操作。其中，
●可选地，所述第一PDCCH监听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)：
◆所述第一PDCCH监听时机起始于所述第二PDCCH监听时机之后。
◆所述第一PDCCH监听时机起始于所述第二PDCCH监听时机之前。
◆所述第一PDCCH监听时机起始于所述第二PDCCH监听时机的起始时间之后。
◆所述第一PDCCH监听时机起始于所述第二PDCCH监听时机的结束时间之后。
◆所述第一PDCCH监听时机起始于所述第二PDCCH监听时机的起始时间之前。
◆所述第一PDCCH监听时机起始于所述第二PDCCH监听时机的结束时间之前。
◆所述第一PDCCH监听时机起始于所述第二PDCCH监听时机的起始时间。
◆所述第一PDCCH监听时机起始于所述第二PDCCH监听时机的结束时间。
◆所述第一PDCCH监听时机结束于所述第二PDCCH监听时机之后。
◆所述第一PDCCH监听时机结束于所述第二PDCCH监听时 机之前。
◆所述第一PDCCH监听时机结束于所述第二PDCCH监听时机的起始时间之后。
◆所述第一PDCCH监听时机结束于所述第二PDCCH监听时机的结束时间之后。
◆所述第一PDCCH监听时机结束于所述第二PDCCH监听时机的起始时间之前。
◆所述第一PDCCH监听时机结束于所述第二PDCCH监听时机的结束时间之前。
◆所述第一PDCCH监听时机结束于所述第二PDCCH监听时机的起始时间。
◆所述第一PDCCH监听时机结束于所述第二PDCCH监听时机的结束时间。
●可选地，所述第一HARQ-ACK信息生成操作可以包括下面中的一项或多项：
◆将所述
Figure PCTCN2021120203-appb-000374
个HARQ-ACK信息比特中的每一个的值(或者说，HARQ-ACK值)设置为第一缺省HARQ-ACK值。
◆将所述
Figure PCTCN2021120203-appb-000375
个HARQ-ACK信息比特中的每一个的优先级值设置为第一缺省HARQ-ACK优先级值。
可选地，在本发明的实施例二中，n可以按下面中的一种方式定义：
●
Figure PCTCN2021120203-appb-000376
●
Figure PCTCN2021120203-appb-000377
●n等于
Figure PCTCN2021120203-appb-000378
中的任意一个。可选地，
Figure PCTCN2021120203-appb-000379
●
Figure PCTCN2021120203-appb-000380
●
Figure PCTCN2021120203-appb-000381
●n等于
Figure PCTCN2021120203-appb-000382
中的任意一个。可选地，
Figure PCTCN2021120203-appb-000383
●对所述PSSCH传输s i
Figure PCTCN2021120203-appb-000384
●对所述PSSCH传输s i
Figure PCTCN2021120203-appb-000385
可选地，在本发明的实施例二中，所述PSSCH传输
Figure PCTCN2021120203-appb-000386
所分别对应的n+k的值相等。
这样，根据实施例二所述，本发明提供了一种方法，通过设置例外情况下的HARQ-ACK信息比特的值以及相应的优先级值，使得上报的HARQ-ACK信息完整地反映直行链路的HARQ-ACK反馈情况，以及携带所述HARQ-ACK信息的上行信道的优先级准确地反映了直行链路上的数据传输的优先级。
[实施例三]
下面结合图3来说明本发明的实施例三的由用户设备执行的方法。
图3是示出了根据本发明的实施例三的由用户设备执行的方法的流程图。
如图3所示，在本发明的实施例三中，用户设备UE执行的步骤包括：步骤S301和步骤S303。
具体地，在步骤S301，确定第一PDCCH监听时机集合(例如记为M D＝{e 0，e 1，...，e M-1}。其中，为简单起见，PDCCH监听时机e m又可以 称为“PDCCH监听时机m”)。
可选地，所述第一PDCCH监听时机集合M D中的PDCCH监听时机用于确定复用在同一个时隙(例如记为时隙n)中的HARQ-ACK信息。
可选地，所述第一PDCCH监听时机集合M D中的元素按照其起始时间(例如，其关联的搜索空间集合的起始时间)的升序进行编号。例如，PDCCH监听时机集合e 0关联的搜索空间集合的起始时间早于(或者，不晚于)PDCCH监听时机集合e 1关联的搜索空间集合的起始时间。
可选地，所述第一PDCCH监听时机集合M D用于监听(或者检测)第一DCI。其中，
●可选地，所述第一DCI对应一个预定义的DCI格式，例如DCI格式3_0。
●可选地，所述第一DCI对应多个预定义的DCI格式(例如与SL有关的DCI格式，例如包括DCI格式3_0)。例如，在所述第一PDCCH监听时机集合M D中的某个PDCCH监听时机上检测到的“第一DCI”可以对应所述多个预定义的DCI格式中的一个。
●可选地，所述第一DCI用于调度一个或多个PSSCH传输。其中，
◆可选地，所述一个或多个PSSCH传输有相应的(或者关联的)PSFCH接收时机。例如，每一个所述PSSCH传输有一个相应的(或者关联的)PSFCH接收时机。
●可选地，所述第一DCI指示(例如通过 PSFCH-to-HARQ_feedback timing indicator字段指示)在所述时隙n中的一个UL传输(例如PUCCH传输，又如PUSCH传输)中携带相应的HARQ-ACK信息(例如与所述第一DCI调度的一个或多个PSSCH传输有关的HARQ-ACK信息)。可选地，可以通过在所述一个或多个PSSCH传输所分别关联的PSFCH接收时机上的PSFCH接收确定所述HARQ-ACK信息。
●可选地，所述第一DCI提供PUCCH资源(例如，通过PUCCH resource indicator字段提供PUCCH资源，例如在所述时隙n中的PUCCH资源)。此时，可选地，所述第一DCI中的PUCCH resource indicator字段的值和PSFCH-to-HARQ feedback timing indicator字段的值不同时为0。
●可选地，所述第一DCI包含一个计数器SL分配指示器(counter sidelink assignment indicator，或者counter SAI)字段。其中，
◆可选地，所述counter SAI字段的值(例如记为
Figure PCTCN2021120203-appb-000387
或者对于PDCCH监听时机e m，记为
Figure PCTCN2021120203-appb-000388
)可以表示累计的(例如到当前PDCCH监听时机为止的)调度了有相应的PSFCH接收时机的PSSCH传输的PDCCH监听时机的数量。
◆可选地，所述counter SAI字段的值0(例如MSB为0，LSB为0)、1(例如MSB为0，LSB为1)、2(例如MSB为1，LSB为0)、3(例如MSB为1，LSB为1)分别对应
Figure PCTCN2021120203-appb-000389
的值1、2、3、4。
可选地，所述第一PDCCH监听时机集合M D属于一个服务小区中的 一个BWP(例如有效下行BWP，active DL BWP)。
此外，在步骤S303，生成HARQ-ACK信息。例如，生成O ACK个HARQ-ACK信息比特(例如，记相应的HARQ-ACK信息比特组成的集合为
Figure PCTCN2021120203-appb-000390
)。
可选地，所述HARQ-ACK信息包含在第一HARQ-ACK码本中。其中，
●可选地，所述第一HARQ-ACK码本包含(或者说复用，或者说携带)在一个UL传输中。其中，
◆可选地，所述UL传输在所述时隙n中。
●可选地，所述第一HARQ-ACK码本是一个类型-2 HARQ-ACK码本。
●可选地，所述第一HARQ-ACK码本是一个类型-1 HARQ-ACK码本。
可选地，所述“生成HARQ-ACK信息”包括：初始化。例如，执行下面中的一项或多项：
●将PDCCH监听时机(例如用于监听DCI格式3_0的PDCCH时机)的索引(例如记为m)初始化为0。
●将与counter SAI有关的索引(例如记为j)初始化为0。
●将用于临时存放上一个检测到的counter SAI的变量(例如记为V temp)初始化为0。
●将已设置一个HARQ-ACK值(例如ACK，又如NACK)的HARQ-ACK信息比特在所述集合H中的下标的集合(例如记为V s)初始化为一个空集(例如记为
Figure PCTCN2021120203-appb-000391
)。
可选地，所述“生成HARQ-ACK信息”包括：遍历所述第一PDCCH 监听时机集合M D，并对每一个满足第一PDCCH监听时机条件的PDCCH监听时机(例如记为em)，执行第一HARQ-ACK信息比特生成操作。其中，
●可选地，所述第一PDCCH监听时机条件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PDCCH监听时机e m不在第一上报小区上的有效上行BWP改变(或者切换)之前。
◆所述PDCCH监听时机e m的起始时间不在第一上报小区上的有效上行BWP改变(或者切换)之前。
◆所述PDCCH监听时机e m的结束时间不在第一上报小区上的有效上行BWP改变(或者切换)之前。
◆在所述PDCCH监听时机e m中检测到所述第一DCI格式。
●可选地，所述第一HARQ-ACK信息比特生成操作包括下面中的一项或多项：
◆若
Figure PCTCN2021120203-appb-000392
则递增索引j的值。其中，可选地，
Figure PCTCN2021120203-appb-000393
是在所述PDCCH监听时机e m中检测到的所述第一DCI格式中的Counter sidelink assignment index字段所指示的counter SAI的值。例如，所述操作可以用伪代码表示如下：
Figure PCTCN2021120203-appb-000394
◆将
Figure PCTCN2021120203-appb-000395
的值保存在临时变量V temp中。例如，所述操作可以用伪代码表示如下：
Figure PCTCN2021120203-appb-000396
◆生成
Figure PCTCN2021120203-appb-000397
(或者所述PDCCH监听时机e m，或者在所述PDCCH监听时机e m中检测到的所述第一DCI，或者在所述PDCCH监听时机e m中检测到的所述第一DCI所调度的PSSCH传输)所对应的HARQ-ACK信息比特
Figure PCTCN2021120203-appb-000398
并为所述HARQ-ACK信息比特
Figure PCTCN2021120203-appb-000399
设置一个值(例如根据相应的PSFCH接收结果确定的一个值，例如ACK，又如NACK)。例如，所述操作可以用伪代码表示如下：
Figure PCTCN2021120203-appb-000400
◆将所述HARQ-ACK信息比特
Figure PCTCN2021120203-appb-000401
的索引
Figure PCTCN2021120203-appb-000402
添加到所述集合V s。例如，所述操作可以用伪代码表示如下：
Figure PCTCN2021120203-appb-000403
例如，所述操作可以用伪代码表示如下：
Figure PCTCN2021120203-appb-000404
可选地，所述“生成HARQ-ACK信息”包括：确定所述第一PDCCH 监听时机集合M D所对应的HARQ-ACK信息比特的数量。例如，所述操作可以用伪代码表示如下：
O AcK＝4·j+V temp
可选地，所述“生成HARQ-ACK信息”包括：对于HARQ-ACK信息比特
Figure PCTCN2021120203-appb-000405
中未设置HARQ-ACK值的每一个比特，执行下面中的一项或多项：
●将所述HARQ-ACK信息比特的值(或者说，HARQ-ACK值)设置为第一缺省HARQ-ACK值。
●将所述HARQ-ACK信息比特的优先级值设置为第一缺省HARQ-ACK优先级值。
例如，所述操作可以用伪代码表示如下：
Figure PCTCN2021120203-appb-000406
可选地，在本发明的实施例三中，所述第一上报小区可以是下面中的一项或多项：
●所述UE的主小区(例如所述UE的MCG中的主小区，Primary Cell，PCell)。
●所述UE的主SCG小区(Primary SCG Cell，PSCell)。
●所述UE的特别小区(Special Cell，SPCell)。
●所述UE的PUCCH辅小区(PUCCH SCell)。
●MCG中的任意一个小区。
●SCG中的任意一个小区。
●所述UE配置的任意一个小区。
●携带所述HARQ-ACK信息的UL传输所在的小区。例如，配置了所述第一PDCCH监听时机集合M D的小区。又如，配置了所述第一PDCCH监听时机集合M D的小区所在的PUCCH组中的 主小区(primary cell)。
这样，根据实施例三所述，本发明提供了一种方法，通过设置例外情况下的HARQ-ACK信息比特的值以及相应的优先级值，使得上报的HARQ-ACK信息完整地反映直行链路的HARQ-ACK反馈情况，以及携带所述HARQ-ACK信息的上行信道的优先级准确地反映了直行链路上的数据传输的优先级。
[实施例四]
下面结合图4来说明本发明的实施例四的由用户设备执行的方法。
图4是示出了根据本发明的实施例四的由用户设备执行的方法的流程图。
如图4所示，在本发明的实施例四中，用户设备UE执行的步骤包括：步骤S401和步骤S403。
具体地，在步骤S401，获取与第一搜索空间集合池(pool of search space sets)有关的配置信息，以及一个或多个RNTI。
可选地，所述一个或多个RNTI可以包括下面中的一项或多项：
●C-RNTI。
●MCS-C-RNTI。
●CS-RNTI。
●SL-RNTI。
●SL-CS-RNTI。
●SL-L-CS-RNTI。
●SI-RNTI。
●RA-RNTI。
●MsgB-RNTI。
●P-RNTI。
可选地，所述第一搜索空间集合池中包括下面中的一项或多项：
●一个或多个类型0-PDCCH CSS集合。其中，
◆可选地，所述一个或多个类型0-PDCCH CSS集合可以由参数searchSpaceZero配置。
◆可选地，所述一个或多个类型0-PDCCH CSS集合可以由参数searchSpaceSIB1配置。
◆可选地，所述一个或多个类型0-PDCCH CSS集合可以用于检测一个CRC用所述SI-RNTI加扰的DCI格式(DCI format with CRC scrambled by the SI-RNTI)。
●一个或多个类型0A-PDCCH CSS集合。其中，
◆可选地，所述一个或多个类型0A-PDCCH CSS集合可以由参数searchSpaceOtherSystemInformation配置。
◆可选地，所述一个或多个类型0A-PDCCH CSS集合可以用于检测一个CRC用所述SI-RNTI加扰的DCI格式。
●一个或多个类型1-PDCCH CSS集合。其中，
◆可选地，所述一个或多个类型1-PDCCH CSS集合可以由参数ra-SearchSpace配置。
◆可选地，所述一个或多个类型1-PDCCH CSS集合可以用于检测一个CRC用所述RA-RNTI加扰的DCI格式。
◆可选地，所述一个或多个类型1-PDCCH CSS集合可以用于检测一个CRC用所述MsgB-RNTI加扰的DCI格式。
◆可选地，所述一个或多个类型1-PDCCH CSS集合可以用于检测一个CRC用所述TC-RNTI加扰的DCI格式。
●一个或多个类型2-PDCCH CSS集合。其中，
◆可选地，所述一个或多个类型2-PDCCH CSS集合可以由参数pagingSearchSpace配置。
◆可选地，所述一个或多个类型2-PDCCH CSS集合可以用于检测一个CRC用所述P-RNTI加扰的DCI格式。
此外，在步骤S403，在所述第一搜索空间集合池中的第一时隙中为检测第一DCI格式集合和/或第二DCI格式集合和/或第三DCI格式集合而监听PDCCH候选(PDCCH candidates)。
可选地，所述第一DCI格式集合可以包括DCI格式0_0和/或DCI格式1_0。其中，
●可选地，所述DCI格式0_0的CRC可以用所述C-RNTI或所述MCS-C-RNTI或所述CS-RNTI加扰。
●可选地，所述DCI格式1_0的CRC可以用所述C-RNTI或所述MCS-C-RNTI或所述CS-RNTI加扰。
可选地，所述第二DCI格式集合可以包括DCI格式3_0。
●可选地，所述DCI格式3_0的CRC可以用所述SL-RNTI或所述SL-CS-RNTI加扰。
可选地，所述第三DCI格式集合可以包括DCI格式3_1。
●可选地，所述DCI格式3_1的CRC可以用所述SL-L-CS-RNTI加扰。
可选地，所述第一时隙是所述UE为检测至少第四DCI格式集合而监听PDCCH候选的时隙。其中，
●可选地，所述第四DCI格式集合可以包括DCI格式0_0和/或DCI格式1_0。其中，
◆可选地，所述DCI格式0_0的CRC可以用所述SI-RNTI或所述RA-RNTI或所述MsgB-RNTI或所述P-RNTI加扰。
◆可选地，所述DCI格式1_0的CRC可以用所述SI-RNTI或所述RA-RNTI或所述MsgB-RNTI或所述P-RNTI加扰。
这样，根据实施例四所述，本发明提供了一种方法，通过把用于调度数据传输的RNTI和用于调度下行公共信令的公共搜索空间集合关联，使得即使UE没有配置用户特定的搜索空间集合，也可以在所述公共搜索空间集合中调度数据传输(例如DL数据传输，又如SL数据传输)。
[实施例五]
下面结合图5来说明本发明的实施例五的由用户设备执行的方法。
图5是示出了根据本发明的实施例五的由用户设备执行的方法的流程图。
如图5所示，在本发明的实施例五中，用户设备UE执行的步骤包括：步骤S501和步骤S503。
具体地，在步骤S501，接收第一PDCCH。
可选地，所述第一PDCCH携带第一DCI。其中，
●可选地，所述第一DCI对应DCI格式3_0。
●可选地，所述第一DCI的CRC用SL-CS-RNTI加扰。其中，
◆可选地，所述SL-CS-RNTI由参数sl-CS-RNTI配置。
●可选地，所述第一DCI中的NDI(新数据指示器，new data indicator)字段设置为’0’。
此外，在步骤S503，验证所述第一PDCCH是否用于释放一个类型-2 SL配置许可。
可选地，所述“用于释放一个类型-2 SL配置许可”也可以称为“用于调度释放(scheduling release)一个类型-2 SL配置许可”，或者“用于调度一个类型-2 SL配置许可的释放”。
可选地，若满足第一类型-2 SL配置许可验证条件，则所述验证通过(或者说验证成功，validation is achieved)。其中，可选地，所述第一类型-2 SL配置许可验证条件包括下面中的一项或多项(在适用的情况下按“与”或者“或”任意组合)：
●所述第一DCI中的“HARQ process number”字段设置为全“1”。
●所述第一DCI中的“Frequency resource assignment”字段设置为全“1”(若所述“Frequency resource assignment”字段存在)。
●所述第一DCI中的“PSFCH-to-HARQ feedback timing indicator”字段设置为全“0”(若所述“PSFCH-to-HARQ feedback timing indicator”字段存在)。
●所述第一DCI中的“PSFCH-to-HARQ feedback timing indicator”字段设置为全“1”(若所述“PSFCH-to-HARQ feedback timing indicator”字段存在)。
●所述第一DCI中的“PSFCH-to-HARQ feedback timing indicator”字段设置为全“0”。
●所述第一DCI中的“PSFCH-to-HARQ feedback timing indicator”字段设置为全“1”。
●所述第一DCI中的“PUCCH resource indicator”字段设置为全“0”。
●所述第一DCI中的“PUCCH resource indicator”字段设置为全“1”。
可选地，若所述验证通过，则认为所述第一DCI中的信息为合法的对类型-2 SL配置许可的释放。
可选地，若所述验证不通过，则丢弃所述第一DCI中的全部信息。
可选地，在本发明的实施例五中，所述“设置为‘1’”可以是，将所有比特的值都设置为‘1’。
可选地，在本发明的实施例五中，所述“设置为‘0’”可以是，将所有比特的值都设置为‘0’。
可选地，在本发明的实施例五中，所述“设置为‘1’”可以是，将相应的字段对应的整数值设置为1。
可选地，在本发明的实施例五中，所述“设置为‘0’”可以是，将相应的字段对应的整数值设置为0。
可选地，在本发明的实施例五中，所述“设置为全‘1’”可以是，将所有比特的值都设置为‘1’。
可选地，在本发明的实施例五中，所述“设置为全‘0’”可以是，将所有比特的值都设置为‘0’。
这样，根据实施例五所述，本发明提供了一种方法，通过在用于释放 一个类型-2 SL配置许可的DCI中的与PUCCH有关的字段设置为指示不提供PUCCH资源，使得不需要为这样的DCI提供HARQ-ACK反馈，提高了在PUCCH上报告与SL有关的HARQ-ACK信息的效率。
[变形例]
下面，利用图6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6是表示本发明所涉及的用户设备UE的框图。
如图6所示，该用户设备UE60包括处理器601和存储器602。处理器601例如可以包括微处理器、微控制器、嵌入式处理器等。存储器602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602上存储有程序指令。该指令在由处理器601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 (6)

  1. 一种由用户设备UE执行的方法，其特征在于包括：
    确定一个或多个有相应的PSFCH接收时机的PSSCH传输，其中所述PSFCH接收时机结束于时隙n，并且相应的PSFCH到HARQ反馈的定时值为k。以及，
    若在时隙m报告为所述PSSCH传输产生的HARQ-ACK信息，且m不等于n+k，则将每一个所述HARQ-ACK信息比特设置为NACK，并将相应的优先级值设置为可能的优先级值中的最大值。
  2. 一种由用户设备UE执行的方法，其特征在于，
    确定一个或多个有相应的PSFCH接收时机的PSSCH传输，其中，所述PSSCH传输由在第一PDCCH监听时机检测到的第一DCI格式调度。以及，
    为所述PSSCH传输产生HARQ-ACK信息，并将所述HARQ-ACK信息复用在一个PUSCH传输上，其中，所述PUSCH传输由在第二PDCCH监听时机检测到的第二DCI格式调度。以及，
    若所述第一PDCCH监听时机起始于所述第二PDCCH监听时机之后，则将每一个所述HARQ-ACK信息比特设置为NACK，并将相应的优先级值设置为可能的优先级值中的最大值。
  3. 根据权利要求1所述的方法，其特征在于，
    根据一个或多个检测到的DCI格式，确定O ACK个HARQ-ACK信息比特
    Figure PCTCN2021120203-appb-100001
    并将所述HARQ-ACK信息比特复用在一个上行传输上。以及，
    若所述HARQ-ACK信息比特
    Figure PCTCN2021120203-appb-100002
    不对应所述一个 或多个DCI格式中的任何一个中的计数器SL分配指示器字段，则将每一个所述HARQ-ACK信息比特设置为NACK，并将相应的优先级值设置为可能的优先级值中的最大值。
  4. 根据权利要求3所述的方法，其特征在于，
    所述O ACK个HARQ-ACK信息比特对应一个类型-2 HARQ-ACK码本。
  5. 根据权利要求3所述的方法，其特征在于，
    所述上行传输是一个PUCCH传输，或者是一个PUSCH传输。
  6. 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1-5中的任一项所述的方法。
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