WO2022028328A1 - Method executed by user equipment and user equipment - Google Patents

Method executed by user equipment and user equipment Download PDF

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Publication number
WO2022028328A1
WO2022028328A1 PCT/CN2021/109668 CN2021109668W WO2022028328A1 WO 2022028328 A1 WO2022028328 A1 WO 2022028328A1 CN 2021109668 W CN2021109668 W CN 2021109668W WO 2022028328 A1 WO2022028328 A1 WO 2022028328A1
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WO
WIPO (PCT)
Prior art keywords
psfch
optionally
resource
transmission
pssch
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PCT/CN2021/109668
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French (fr)
Chinese (zh)
Inventor
罗超
刘仁茂
赵毅男
野上智造
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夏普株式会社
罗超
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Publication of WO2022028328A1 publication Critical patent/WO2022028328A1/en

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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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling

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 system configuration combinations.
  • 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, when generating a HARQ-ACK codebook (for example, a semi-static HARQ-ACK codebook), traverse all configured HARQ-ACK codebooks
  • a HARQ-ACK codebook for example, a semi-static HARQ-ACK codebook
  • the configuration information of the resource pool determines one or more resource pools that use the same SL reference time slot as the PSFCH time slot, and determines the number of SL opportunities (such as PSSCH transmission opportunities) that need to be generated according to the corresponding one or more PSFCH cycles , which avoids the problem that the size of the HARQ-ACK codebook cannot accommodate all possible HARQ-ACK bits corresponding to actual PSSCH transmission when multiple resource pools are configured.
  • a method performed by a user equipment is proposed, which is characterized by comprising: according to an SL reference time slot that satisfies the HARQ-ACK timing configuration from PSFCH to PUCCH, determining a resource that satisfies the first resource pool condition A set of pools, and determined from the set of resource pools PSSCH transmission occasions, and the The indices corresponding to the PSSCH transmission occasions are added to a PSSCH transmission occasion set. .
  • the resource pool RP ref satisfies the first resource pool condition.
  • the The value of is equal to the maximum value of the PSFCH period configured for all resource pools in the resource pool set.
  • 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, when generating a HARQ-ACK codebook (such as a semi-static HARQ-ACK codebook), traverse the configuration information of all configured resource pools to determine one or more with the same SL
  • the reference time slot is the resource pool of PSFCH time slots, and the number of SL opportunities (such as PSSCH transmission opportunities) to be generated is determined according to the corresponding one or more PSFCH cycles, avoiding HARQ-
  • the size of the ACK codebook cannot accommodate the HARQ-ACK bits corresponding to all possible actual PSSCH transmissions.
  • FIG. 1 is a flowchart illustrating a method performed by a user equipment according to Embodiment 1 of the present invention.
  • FIG. 2 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 Frame 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 Navigation Satellite System, global navigation satellite system
  • GPS Global Positioning System, global positioning system
  • HARQ-ACK HARQ Acknowledgement, HARQ acknowledgment
  • ID Identity (or Identifier), identity, identifier
  • 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 Sidelink Synchronisation Signal, straight synchronization signal
  • SL SSID Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), straight synchronization signal identifier
  • SL SSB Sidelink SS/PBCH block, straight sync signal/physical broadcast channel block
  • SL SSS Sidelink Secondary Synchronization Signal, straight auxiliary synchronization signal
  • SL-SCH Sidelink Shared Channel, straight shared channel
  • SLSS Sidelink Synchronisation Signal, straight synchronization signal
  • SLSS ID Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), straight synchronization signal identifier
  • SLSSID Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), straight synchronization signal identifier
  • 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, straight auxiliary synchronization signal
  • SSSB Sidelink SS/PBCH block, straight line synchronization signal/physical broadcast channel block
  • SSSS Secondary Sidelink Synchronization Signal, auxiliary straight line synchronization signal
  • Sub-channel sub-channel
  • S-GW Serving Gateway, serving gateway
  • 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
  • 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, 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).
  • a sequence of N elements has length N (or size 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 resource broker
  • RB RB
  • 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 single-element set is recorded as 1, the cardinality of a two-element set is recorded as 2, etc. .
  • 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-configuration may be pre-configure in a higher layer protocol.
  • preset eg, preset according to the specification of the high-level 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.
  • “configured” may be replaced with “configured or preconfigured”.
  • not configured may be replaced by “not preconfigured”.
  • not configured may be replaced by “not configured and or preconfigured”.
  • not configured may be replaced by “not (pre)configured”.
  • 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 ⁇ .
  • 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 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 may refer to an applicable DCI format.
  • DCI format 3_0 may refer to an applicable DCI format.
  • SL transport may refer to any of the following:
  • 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 may carry SL SSID (Sidelink Synchronization Identity, or Sidelink Synchronization Identifier, straight-line synchronization identifier, or Sidelink Synchronization Signal Identity, or Sidelink Synchronization Signal Identifier, straight-line synchronization signal identifier, or 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 may 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 si-LengthSymbols) (for example, record the number of symbols as ), where the symbols can be consecutive symbols.
  • the set of values can be written as For example The set of values can be written as For example
  • 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 can 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 ID (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) 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).
  • 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 HARQ-ACK information related to SL transmission reported on the SL may indicate an acknowledgment (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, reported on the SL HARQ-ACK related to SL transmission
  • 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 (for example, parameters configured through sl-PSFCH-Config) or the PSFCH period configured in the parameter sl-PSFCH-Config is 0, it means that the resource pool is not configured with PSFCH resources .
  • PSFCH-related parameters for example, parameters configured through sl-PSFCH-Config
  • the PSFCH period configured in the parameter sl-PSFCH-Config is 0, it means that the resource pool is not configured with PSFCH resources .
  • the parameter s1-PSFCH-Config has been configured in a resource pool and the PSFCH period configured in the parameter s1-PSFCH-Config is greater than 0 timeslots, it means that the resource pool has been 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 that slot, eg, for PSFCH format 0, may be the last three SL symbols (eg the symbol symbol and symbol ).
  • Other symbols of one PSFCH slot can be used to transmit other SL signals/channels, such as PSCCH, PSSCH, etc.
  • Timeslots (eg, such timeslots are referred to as "PSSCH timeslots") may be associated with one PSFCH timeslot.
  • 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 is associated to the PSFCH slot rn +5 .
  • 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 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.
  • the network side may configure one or more "SL configuration grants" (SL configured grants, or SL grants for short when the context is clear) for the UE (eg, TX UE), for example, through the parameter sl-ConfiguredGrantConfigList to configure.
  • Each SL configuration grant can be associated with periodic PSSCH transmission resources (or can schedule periodic PSSCH transmission), wherein the corresponding period can be configured by 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-1SL configuration licenses (type 1 sidelink configured grant, or sidelink configured grant type 1) and type-2SL configuration licenses (type 2 sidelink configured grant, or sidelink configured grant type 2), where the former is associated with Resources can be configured and/or activated and/or deactivated through semi-static signaling (such as RRC signaling), the latter associated resources can be configured through semi-static signaling (such as RRC signaling), and the configured resources can be Activated and/or deactivated dynamically (eg via DCI).
  • semi-static signaling such as RRC signaling
  • RRC signaling semi-static signaling
  • RRC signaling semi-static signaling
  • the configured resources can be Activated and/or deactivated dynamically (eg via DCI).
  • 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) uplink resources (eg, PUCCH resources, eg, PUSCH resources) for the UE (eg, TX UE) for reporting related to SL transmission.
  • uplink resources eg, PUCCH resources, eg, PUSCH resources
  • 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 does not need 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 can also report HARQ-ACK information related to DL transmission on uplink resources (eg, PUCCH, or PUSCH) (correspondingly, use the HARQ-ACK codebook related to DL transmission) for feedback downlink.
  • uplink resources eg, PUCCH, or PUSCH
  • Sending and/or receiving of data and/or control information on the road for example, sending and/or receiving status; another example, sending and/or receiving result; another example, not performing transmission; another example, not performing reception; etc).
  • Such 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 in the time slot n+k.
  • the offset between the time slot n and the time slot n+k satisfies the "timing relationship between the PSFCH and the uplink HARQ feedback".
  • ⁇ optionally, is an integer, and For example, 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 the PSFCH reception opportunities are located) are respectively associated with the same DCI format (eg DCI format 3_0) 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 format.
  • 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 via the parameter sl-PSFCH-ToPUCCH-CG-Type1 (e.g. the parameter sl-PSFCH- ToPUCCH-CG-Type1) to configure.
  • the value of the offset "k" may be "PSFCH-to-HARQ feedback timing" in a DCI format (such as a DCI format that activates the SL configuration license).
  • a DCI format such as a DCI format that activates the SL configuration license.
  • ⁇ 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.
  • the UL transmission may be a PUCCH transmission.
  • the UL transmission may be a PUSCH transmission.
  • 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”).
  • One or more HARQ-ACK information bits in one HARQ-ACK codebook may 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 (eg, configuration information of the RRC layer); the size of the Type-2 HARQ-ACK codebook may vary dynamically (eg, based on detected The number of DCI formats associated with the 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 the HARQ-ACK codebook may be associated with only one SL configuration grant.
  • the HARQ-ACK information in the HARQ-ACK codebook may be associated with one or more SL configuration grants.
  • the HARQ-ACK information within the HARQ-ACK codebook may be associated with one or more DCI formats (eg, DCI format 3_0).
  • each of the one or more DCI formats 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 in the DCI format 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 the dependency information related to the SL occasion set MA is acquired.
  • the SL opportunity may be one of the following:
  • one PSSCH transmission occasion may be used for one "candidate PSSCH transmission", where,
  • a "candidate PSSCH transmission" may represent any actual PSSCH transmission at the corresponding PSSCH transmission occasion.
  • a "candidate PSSCH transmission" has a corresponding PSFCH reception.
  • a "candidate PSSCH transmission" has no corresponding PSFCH reception.
  • one "candidate PSSCH transmission" has a corresponding PSFCH reception opportunity.
  • a "candidate PSSCH transmission" has no corresponding PSFCH reception opportunity.
  • the PSFCH reception is used to obtain HARQ-ACK feedback on the candidate PSSCH transmission.
  • the PSFCH reception on the PSFCH reception occasion is used to obtain HARQ-ACK feedback on the candidate PSSCH transmission.
  • one PSFCH reception opportunity may be used for one "candidate PSFCH reception", where,
  • a "candidate PSFCH reception" may represent any actual PSFCH reception at the corresponding PSFCH reception occasion.
  • one "candidate PSFCH reception" has a corresponding PSSCH transmission.
  • a "candidate PSFCH reception" has no corresponding PSSCH transmission.
  • one "candidate PSFCH reception" has a corresponding PSSCH transmission opportunity.
  • a "candidate PSFCH reception" has no corresponding PSSCH transmission opportunity.
  • the candidate PSFCH reception is used to obtain HARQ-ACK feedback on the PSSCH transmission.
  • the candidate PSFCH reception is used to obtain HARQ-ACK feedback on PSSCH transmission on the PSSCH transmission occasion.
  • one PSSCH reception opportunity can be used for one "candidate PSSCH reception", where,
  • a "candidate PSSCH reception” may represent any actual PSSCH reception at the corresponding PSSCH reception occasion.
  • a "candidate PSSCH reception" has a corresponding PSFCH transmission.
  • a "candidate PSSCH reception" has no corresponding PSFCH transmission.
  • one "candidate PSSCH reception" has a corresponding PSFCH transmission opportunity.
  • a "candidate PSSCH reception" has no corresponding PSFCH transmission opportunity.
  • the PSFCH transmission is used to feed back HARQ-ACK information on the candidate PSSCH reception.
  • the PSFCH transmission on the PSFCH transmission occasion is used to feed back HARQ-ACK information on the candidate PSSCH reception.
  • one PSFCH transmission occasion may be used for one "candidate PSFCH transmission", where,
  • a "candidate PSFCH transmission" may represent any actual PSFCH transmission at the corresponding PSFCH transmission occasion.
  • a "candidate PSFCH transmission" has a corresponding PSSCH reception.
  • a "candidate PSFCH transmission" has no corresponding PSSCH reception.
  • one "candidate PSFCH transmission" has a corresponding PSSCH reception opportunity.
  • a "candidate PSFCH transmission" has no corresponding PSSCH reception opportunity.
  • the candidate PSFCH transmission is used to feed back HARQ-ACK information on the PSSCH reception.
  • the candidate PSFCH transmission is used to feed back HARQ-ACK information on PSSCH reception on the PSSCH reception occasion.
  • the SL occasion set MA is an ordered set.
  • the index of the first element (if any) of the SL occasion set MA is 0, the index of the second element (if any) is 1, and the index of the third element (if any) The index is 2, and so on.
  • an element in the SL occasion set MA can be referenced by an index of the element, for example, the first element of the SL occasion set MA can be referenced respectively through indices 0, 1 , 2, etc. element (if any), second element (if any), third element (if any), etc.
  • each SL occasion in the SL occasion set MA corresponds to an SL occasion index.
  • the SL occasion index corresponding to each SL occasion in the SL occasion set MA is unique, that is, the SL occasion indices corresponding to the SL occasions in the SL occasion set MA respectively vary.
  • the value of the SL occasion index corresponding to each SL occasion in the SL occasion set MA may be one of the.
  • each element in the SL occasion set MA is an SL occasion index.
  • the SL occasion set MA may also be referred to as "SL occasion index set MA " at this time.
  • the SL occasion indices corresponding to the first element, the second element, ... and the last element in the SL occasion set MA are respectively
  • each element in the SL opportunity set MA is a time slot number (eg, the number of the time slot where the corresponding SL opportunity is located).
  • the SL occasion set MA corresponds to HARQ-ACK information multiplexed on one UL transmission in the time slot n U. in,
  • each SL opportunity in the SL occasion set MA corresponds to one HARQ - ACK information bit.
  • the SL occasion index i corresponds to the HARQ-ACK information bit
  • the UL transmission is a PUCCH transmission.
  • the UL transmission is a PUSCH transmission.
  • the SL occasion set MA corresponds to a type-1 HARQ-ACK codebook.
  • the SL occasion set MA corresponds to a type-2 HARQ-ACK codebook.
  • the dependency information includes: a set of slot timing values, such as K 1 . in,
  • the set K 1 is an ordered set.
  • the index of the first element (if any) of the set K 1 is 0, the index of the second element (if any) is 1, and the index of the third element (if any) is for 2, and so on.
  • an element in the set K 1 can be referenced by its index, for example, the element with the index k in the set K 1 (or the value of the element) is denoted as K 1,k .
  • the set K 1 may be determined by one or more of the following:
  • a slot timing value (e.g. denoted as ).
  • the number of Type-1SL configuration licenses configured for the UE is 0, and accordingly, the set is an empty set.
  • the time slot timing value determined by the parameter sl-PSFCH-ToPUCCH-CG-Type1 corresponding to each configured Type-1SL configuration grant (for example, respectively denoted as in is the number of Type-1 SL configuration grants configured for the UE).
  • the set is an empty set.
  • K1 is the set and collection union of .
  • K1 is the set and collection union of .
  • collection always set A subset of.
  • collection always set A subset of.
  • K 1 is determined in other ways.
  • the dependency information includes: a ratio related to the SCS configuration of the direct link (eg, denoted as ⁇ SL ) and the SCS configuration of the uplink (eg, denoted as ⁇ UL ) and / or in,
  • the ⁇ SL can be configured through the parameter subcarrierSpacing, such as one or more of the following (any combination in an "or” manner):
  • the ⁇ UL can be configured through the parameter subcarrierSpacing, such as one or more of the following (any combination in an "or” manner):
  • the dependency information includes: one or more (for example, marked as N RP ) resource pools configured for the UE (for example, marked as ) is a collection of related parameters.
  • N RP the set formed by the corresponding bitmaps of the N RP resource pools (for example, configured by the parameter sl-TimeResource of the corresponding resource pool), for example, is denoted as
  • the period of the PSFCH resources corresponding to the N RP resource pools respectively is formed. for in,
  • the N RP resource pools are N RP resource pools configured for the UE.
  • the N RP resource pools only include a transmission resource pool (TX resource pool, or transmission pool, TX pool).
  • TX resource pool or transmission pool, TX pool.
  • the N RP resource pools only include a receiving resource pool (RX resource pool, or receiving pool, RX pool).
  • RX resource pool or receiving pool, RX pool.
  • the N RP resource pools include a transmission resource pool and a reception resource pool.
  • the N RP resource pools only include resource pools configured for direct resource allocation mode 1 .
  • the N RP resource pools only include resource pools configured for direct resource allocation mode 2 .
  • the N RP resource pools include a resource pool configured for direct resource allocation mode 1 and a resource pool configured for direct resource allocation mode 2.
  • the N RP resource pools are part or all of the resource pools configured through the parameter si-TxPoolScheduling.
  • the N RP resource pools only include resource pools with a non-zero PSFCH resource period in the resource pools configured by the parameter sl-TxPoolScheduling.
  • the N RP resource pools are all resource pools configured through the parameter si-TxPoolScheduling.
  • step S103 the SL occasion set MA is determined based on the dependency information, and/or other information.
  • the "determining the SL occasion set MA" includes: initialization. For example, do one or more of the following:
  • the "determining the set of SL occasions MA" includes: determining a set composed of all time slots (referred to as SL reference time slots) that satisfy the conditions of the first SL reference time slot in, Alternatively, the set can be written as Optionally, the first SL reference time slot condition includes one or more of the following (in any combination of "and” or “or” where applicable):
  • the first BWP modification condition is one or more of the following (in any combination of "and” or “or” where applicable):
  • the time slot is a time slot for (or in other words to occur) an active UL BWP change.
  • the active UL BWP change occurs on the PCell.
  • the active UL BWP change occurs on the cell that transmits the HARQ - ACK information corresponding to the SL occasion set MA.
  • the active UL BWP change occurs on the cell corresponding to the corresponding SL and/or UL configuration information in Embodiment 1 of the present invention.
  • the active UL BWP change occurs on any serving cell.
  • the cell where the active UL BWP change occurs may be determined in other ways.
  • the "determining the set of SL occasions MA" includes: referring to a time slot for each SL Sure SL opportunity, and the SL occasions (or their respective corresponding SL occasion indices) are added to the set of SL occasions MA . in,
  • the reference resource pool set ⁇ RP ref ⁇ is composed of all resource pools that satisfy the conditions of the first resource pool in the N RP resource pools.
  • the first resource pool condition may be "unconditional", that is, the first resource pool condition can always be satisfied.
  • the first resource pool condition includes one or more of the following (in any combination of "and” or “or” where applicable):
  • the resource pool bitmap configured for the resource pool RP ref for example, through the parameter sl-TimeResource
  • TDD configuration information for example, through the parameter tdd-UL-DL-ConfigurationCommon
  • other information that determines the SL reference slot Whether it belongs to the resource pool RP ref .
  • the SL reference slot is a PSFCH slot of the resource pool RP ref . in,
  • the SL reference time slot in the resource pool RP ref determines the SL reference time slot in the resource pool RP ref according to the PSFCH period information configured for the resource pool RP ref (for example, configured through the parameter sl-PSFCH-Period), etc. Whether to include PSFCH resources (or the SL reference slot Whether to include the PSFCH resource in the resource pool RP ref ).
  • the SL reference slot is a PSFCH slot of the resource pool RP ref " can also be expressed as "the
  • the reference resource pool set ⁇ RP ref ⁇ is an empty set.
  • the is equal to one of the following:
  • the SL reference slot The cardinality of the union of the corresponding PSSCH time slots in each reference resource pool in the reference resource pool set ⁇ RP ref ⁇ .
  • the SL refers to the time slot (as a PSFCH slot) associated in resource pool RP 0 PSSCH slots, associated in resource pool RP 1 PSSCH slots, and the PSSCH slots and the 2 of the PSSCH time slots overlap, then
  • the SL occasion set MA refers to the "finally determined SL occasion set MA ".
  • the "SL occasion set MA " mentioned in step S101 of the first embodiment of the present invention refers to the SL occasion set MA finally determined after step S103 of the first embodiment of the present invention is executed.
  • the initialization and element addition of the SL occasion set MA can be considered to be applied to a temporary ( interim) SL opportunity set MA .
  • mod is a remainder operation, or a remainder function, or a modulo operation, or a modulo function.
  • "max” is an operation for obtaining a maximum value, or a function for obtaining a maximum value.
  • the "determining SL timing” can also be called “determined SL Timing Index”.
  • the "determine SL opportunities” can also be called “generating an SL time”.
  • the "determining SL opportunities” can also be called “generating SL Timing Index”.
  • the index of an SL opportunity may also be referred to as the number of the SL opportunity.
  • the parameter sl-PSFCH-ToPUCCH may be replaced with the parameter sl-FeedbackToUL-ACK.
  • the parameter sl-PSFCH-ToPUCCH-CG-Type1 may be replaced with the parameter sl-ACKToUL-ACK.
  • the "PSSCH transmission” may be replaced with "PSCCH and/or PSSCH transmission”.
  • Embodiment 1 of the present invention may be applied to an SL BWP in a serving cell (for example, PCell, or PSCell, or SpCell, or SCell, or other serving cells).
  • a serving cell for example, PCell, or PSCell, or SpCell, or SCell, or other serving cells.
  • Embodiment 1 of the present invention may be applied to a UL BWP (such as an active UL BWP, active UL BWP, active UL BWP).
  • a UL BWP such as an active UL BWP, active UL BWP, active UL BWP.
  • the present invention provides a method, when generating a HARQ-ACK codebook (for example, a semi-static HARQ-ACK codebook), traverse the configuration information of all configured resource pools to determine a or multiple resource pools that use the same SL reference time slot as the PSFCH time slot, and determine the number of SL opportunities (such as PSSCH transmission opportunities) that need to be generated according to the corresponding one or more PSFCH cycles, avoiding the need to configure multiple In the case of a resource pool, the size of the HARQ-ACK codebook cannot accommodate all possible HARQ-ACK bits corresponding to actual PSSCH transmissions.
  • a HARQ-ACK codebook for example, a semi-static HARQ-ACK codebook
  • FIG. 2 is used to describe 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. 2 is a block diagram showing a user equipment UE according to the present invention.
  • the user equipment UE20 includes a processor 201 and a memory 202 .
  • the processor 201 may include, for example, a microprocessor, a microcontroller, an embedded processor, or the like.
  • the memory 202 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, and the like.
  • Program instructions are stored on the memory 202 . When the instruction is executed by the processor 201, 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.

Abstract

According to the present invention, provided are a method executed by a user equipment and a user equipment. The method executed by a user equipment comprises: according to an SL reference slot that meets an HARQ-ACK timing configuration from a PSFCH to a PUCCH, determining a set formed by all resource pools that meet a first resource pool condition; according to the resource pool set, determining NSL OCCASION PSSCH transmission occasions; and adding indexes respectively corresponding to the NSL OCCASION PSSCH transmission occasions to a PSSCH transmission occasion set.

Description

由用户设备执行的方法以及用户设备Method performed by user equipment and user equipment 技术领域technical field
本发明涉及一种由用户设备执行的方法以及用户设备。The present invention relates to a method performed by a user equipment and the user equipment.
背景技术Background technique
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系统配置组合中都可以正确生成上报的HARQ-ACK信息所对应的HARQ-ACK码本。In 5G V2X (see Non-Patent Document 4), 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. In addition, 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. In the HARQ-ACK information reporting mechanism, the problems to be solved include that the HARQ-ACK codebook corresponding to the reported HARQ-ACK information can be correctly generated in various system configuration combinations.
在先技术文献prior art literature
非专利文献Non-patent literature
非专利文献1：RP-152293，New WI proposal：Support for V2V services based on LTE sidelinkNon-patent literature 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 2Non-patent document 2: RP-170798, New WID on 3GPP V2X Phase 2
非专利文献3：RP-170855，New WID on New Radio Access TechnologyNon-Patent Document 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 sidelinkNon-patent document 4: RP-190766, New WID on 5G V2X with NR sidelink
发明内容SUMMARY OF THE INVENTION
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，在生成HARQ-ACK码本(例如半静态的HARQ-ACK码本)时，遍历所有已配置的资源池的配置信息以确定一个或多个以同一个SL参考时隙为PSFCH时隙的资源池，并根据相应的一个或多个PSFCH周期确定需要生成的SL时机(如PSSCH传输时机)个 数，避免了在配置了多个资源池的情况下HARQ-ACK码本的大小无法容纳所有可能的实际的PSSCH传输所对应的HARQ-ACK比特等问题。In order to solve at least a part of the above problems, the present invention provides a method performed by a user equipment and the user equipment, when generating a HARQ-ACK codebook (for example, a semi-static HARQ-ACK codebook), traverse all configured HARQ-ACK codebooks The configuration information of the resource pool determines one or more resource pools that use the same SL reference time slot as the PSFCH time slot, and determines the number of SL opportunities (such as PSSCH transmission opportunities) that need to be generated according to the corresponding one or more PSFCH cycles , which avoids the problem that the size of the HARQ-ACK codebook cannot accommodate all possible HARQ-ACK bits corresponding to actual PSSCH transmission when multiple resource pools are configured.
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：根据一个满足从PSFCH到PUCCH的HARQ-ACK定时配置的SL参考时隙，确定一个满足第一资源池条件的所有资源池组成的集合，以及根据所述资源池集合确定
Figure PCTCN2021109668-appb-000001
个PSSCH传输时机，以及将所述
Figure PCTCN2021109668-appb-000002
个PSSCH传输时机分别对应的索引添加到一个PSSCH传输时机集合。。 According to the present invention, a method performed by a user equipment is proposed, which is characterized by comprising: according to an SL reference time slot that satisfies the HARQ-ACK timing configuration from PSFCH to PUCCH, determining a resource that satisfies the first resource pool condition A set of pools, and determined from the set of resource pools
Figure PCTCN2021109668-appb-000001
PSSCH transmission occasions, and the
Figure PCTCN2021109668-appb-000002
The indices corresponding to the PSSCH transmission occasions are added to a PSSCH transmission occasion set. .
优选地，若所述SL参考时隙属于资源池RP ref，并且所述SL参考时隙包含所述资源池RP ref的PSFCH资源，则所述资源池RP ref满足所述第一资源池条件。 Preferably, if the SL reference time slot belongs to the resource pool RP ref , and the SL reference time slot includes the PSFCH resource of the resource pool RP ref , the resource pool RP ref satisfies the first resource pool condition.
优选地，所述
Figure PCTCN2021109668-appb-000003
的值等于所述资源池集合中的所有资源池所配置的PSFCH周期的最大值。 Preferably, the
Figure PCTCN2021109668-appb-000003
The value of is equal to the maximum value of the PSFCH period configured for all resource pools in the resource pool set.
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。Furthermore, according to the present invention, a user equipment is proposed, comprising: a processor; and a memory storing instructions, wherein the instructions execute the above-mentioned method when executed by the processor.
因此，本发明提供了一种方法，在生成HARQ-ACK码本(例如半静态的HARQ-ACK码本)时，遍历所有已配置的资源池的配置信息以确定一个或多个以同一个SL参考时隙为PSFCH时隙的资源池，并根据相应的一个或多个PSFCH周期确定需要生成的SL时机(如PSSCH传输时机)个数，避免了在配置了多个资源池的情况下HARQ-ACK码本的大小无法容纳所有可能的实际的PSSCH传输所对应的HARQ-ACK比特等问题。Therefore, the present invention provides a method, when generating a HARQ-ACK codebook (such as a semi-static HARQ-ACK codebook), traverse the configuration information of all configured resource pools to determine one or more with the same SL The reference time slot is the resource pool of PSFCH time slots, and the number of SL opportunities (such as PSSCH transmission opportunities) to be generated is determined according to the corresponding one or more PSFCH cycles, avoiding HARQ- The size of the ACK codebook cannot accommodate the HARQ-ACK bits corresponding to all possible actual PSSCH transmissions.
附图说明Description of drawings
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：The above and other features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, wherein:
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。FIG. 1 is a flowchart illustrating a method performed by a user equipment according to Embodiment 1 of the present invention.
图2示出了本发明所涉及的用户设备UE的框图。FIG. 2 shows a block diagram of the user equipment UE involved in the present invention.
具体实施方式detailed description
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。The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the present invention should not be limited to the specific embodiments described below. In addition, for the sake of brevity, detailed descriptions of well-known technologies not directly related to the present invention are omitted in order to avoid obscuring the understanding of the present invention.
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。Hereinafter, 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. However, it should be pointed out that 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.
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。Part of the terms involved in the present invention are described below. Unless otherwise specified, the terms involved in the present invention are defined here. The terms given in the present invention may adopt different naming methods in LTE, LTE-Advanced, LTE-Advanced Pro, NR and later communication systems, but unified terms are adopted in the present invention. When applied to a specific system, Can be substituted with the term used in the corresponding system.
3GPP：3rd Generation Partnership Project，第三代合作伙伴计划3GPP: 3rd Generation Partnership Project
AGC：Automatic Gain Control，自动增益控制AGC: Automatic Gain Control, automatic gain control
AL：Aggregation Level，聚合等级AL: Aggregation Level, aggregation level
AMF：Access and Mobility Management Function，接入和移动性管理功能AMF: Access and Mobility Management Function, access and mobility management function
AS：Access Stratum，接入层AS: Access Stratum, access layer
BWP：Bandwidth Part，带宽片段BWP: Bandwidth Part, bandwidth fragment
CA：Carrier Aggregation，载波聚合CA: Carrier Aggregation, carrier aggregation
CBR：Channel Busy Ratio，信道忙碌比例CBR: Channel Busy Ratio, the channel busy ratio
CCE：control-channel element，控制信道元素CCE: control-channel element, control channel element
CORESET：control-resource set，控制资源集CORESET: control-resource set, control resource set
CP：Cyclic Prefix，循环前缀CP: Cyclic Prefix, cyclic prefix
CP-OFDM：Cyclic Prefix Orthogonal Frequency Division Multiplexing，循环前缀正交频分复用CP-OFDM: Cyclic Prefix Orthogonal Frequency Division Multiplexing, cyclic prefix orthogonal frequency division multiplexing
CRB：Common Resource Block，公共资源块CRB: Common Resource Block, common resource block
CRC：Cyclic Redundancy Check，循环冗余校验CRC: Cyclic Redundancy Check, Cyclic Redundancy Check
CSI：Channel-state Information，信道状态信息CSI: Channel-state Information, channel state information
CSS：Common Search Space，公共搜索空间CSS: Common Search Space, Common Search Space
DC：Dual Connectivity，双连接DC: Dual Connectivity, dual connectivity
DCI：Downlink Control Information，下行控制信息DCI: Downlink Control Information, downlink control information
DFN：Direct Frame Number，直接帧号DFN: Direct Frame Number, direct frame number
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DFT-s-OFDM: Discrete Fourier Transformation Spread Orthogonal Frequency Division Multiplexing, Discrete Fourier Transform Spread Spectrum Orthogonal Frequency Division Multiplexing
DL：Downlink，下行DL: Downlink, Downlink
DL-SCH：Downlink Shared Channel，下行共享信道DL-SCH: Downlink Shared Channel, downlink shared channel
DM-RS：又称为DMRS，Demodulation reference signal，解调参考信号DM-RS: Also known as DMRS, Demodulation reference signal, demodulation reference signal
eMBB：Enhanced Mobile Broadband，增强的移动宽带通信eMBB: Enhanced Mobile Broadband, enhanced mobile broadband communications
eNB：E-UTRAN Node B，E-UTRAN节点BeNB: E-UTRAN Node B, E-UTRAN Node B
E-UTRAN：Evolved UMTS Terrestrial Radio Access Network，演进的UMTS陆地无线接入网E-UTRAN: Evolved UMTS Terrestrial Radio Access Network, Evolved UMTS Terrestrial Radio Access Network
FDD：Frequency Division Duplex，频分双工FDD: Frequency Division Duplex, frequency division duplex
FDRA：Frequency Domain Resource Assignment，频域资源分配FDRA: Frequency Domain Resource Assignment, frequency domain resource allocation
FR1：Frequency Range 1，频率范围1FR1: Frequency Range 1, frequency range 1
FR2：Frequency Range 1，频率范围2FR2: Frequency Range 1, Frequency Range 2
GLONASS：GLObal NAvigation Satellite System，全球导航卫星系统GLONASS: GLObal NAvigation Satellite System, global navigation satellite system
gNB：NR Node B，NR节点BgNB: NR Node B, NR Node B
GNSS：Global Navigation Satellite System，全球导航卫星系统GNSS: Global Navigation Satellite System, global navigation satellite system
GPS：Global Positioning System，全球定位系统GPS: Global Positioning System, global positioning system
HARQ：Hybrid Automatic Repeat Request，混合自动重复请求HARQ: Hybrid Automatic Repeat Request, hybrid automatic repeat request
HARQ-ACK：HARQ Acknowledgement，HARQ确认HARQ-ACK: HARQ Acknowledgement, HARQ acknowledgment
ID：Identity(或者Identifier)，身份，标识符ID: Identity (or Identifier), identity, identifier
IE：Information Element，信息元素IE: Information Element, information element
IP：Internet Protocol，网际协议IP: Internet Protocol, Internet Protocol
LCID：Logical Channel ID，逻辑信道标识符LCID: Logical Channel ID, logical channel identifier
LSB：Least Significant Bit，最低有效位LSB: Least Significant Bit, the least significant bit
LTE：Long Term Evolution，长期演进LTE: Long Term Evolution, Long Term Evolution
LTE-A：Long Term Evolution-Advanced，长期演进-升级版LTE-A: Long Term Evolution-Advanced
MAC：Medium Access Control，介质访问控制MAC: Medium Access Control, medium access control
MAC CE：MAC Control Element，MAC控制元素MAC CE: MAC Control Element, MAC control element
MCG：Master Cell Group，主小区组MCG: Master Cell Group, the main cell group
MIB：Master Information Block，主信息块MIB: Master Information Block, the main information block
MIB-SL：Master Information Block-Sidelink，主信息块-直行MIB-SL: Master Information Block-Sidelink, Master Information Block-Sidelink
MIB-SL-V2X：Master Information Block-Sidelink-V2X，主信息块-直行-车辆到任何实体MIB-SL-V2X: Master Information Block-Sidelink-V2X, Master Information Block-Straight-Vehicle to Any Entity
MIB-V2X：Master Information Block-V2X，主信息块-车辆到任何实体MIB-V2X: Master Information Block-V2X, Master Information Block - Vehicle to Any Entity
MME：Mobility Management Entity，移动管理实体MME: Mobility Management Entity, mobility management entity
MSB：Most Significant Bit，最高有效位MSB: Most Significant Bit, the most significant bit
mMTC：massive Machine Type Communication，大规模机器类通信mMTC: massive Machine Type Communication, large-scale machine type communication
NAS：Non-Access-Stratum，非接入层NAS: Non-Access-Stratum, non-access stratum
NDI：New Data Indicator，新数据指示符NDI: New Data Indicator, new data indicator
NR：New Radio，新无线电NR: New Radio, New Radio
NUL：Normal Uplink，正常上行NUL: Normal Uplink, normal uplink
OFDM：Orthogonal Frequency Division Multiplexing，正交频分复用OFDM: Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing
PBCH：Physical Broadcast Channel，物理广播信道PBCH: Physical Broadcast Channel, physical broadcast channel
PCell：Primary Cell，主小区PCell: Primary Cell, the main cell
PDCCH：Physical Downlink Control Channel，物理下行控制信道PDCCH: Physical Downlink Control Channel, physical downlink control channel
PDCP：Packet Data Convergence Protocol，分组数据汇聚协议PDCP: Packet Data Convergence Protocol, Packet Data Convergence Protocol
PDSCH：Physical Downlink Shared Channel，物理下行共享信道PDSCH: Physical Downlink Shared Channel, physical downlink shared channel
PSBCH：Physical Sidelink Broadcast Channel，物理直行广播信道PSBCH: Physical Sidelink Broadcast Channel, physical direct broadcast channel
PSCCH：Physical Sidelink Control Channel，物理直行控制信道PSCCH: Physical Sidelink Control Channel, physical straight control channel
PSFCH：Physical Sidelink Feedback Channel，物理直行反馈信道PSFCH: Physical Sidelink Feedback Channel, physical direct feedback channel
PSSCH：Physical Sidelink Shared Channel，物理直行共享信道PSSCH: Physical Sidelink Shared Channel, physical straight shared channel
PRB：Physical Resource Block，物理资源块PRB: Physical Resource Block, physical resource block
PSCell：Primary SCG Cell，主SCG小区PSCell: Primary SCG Cell, the primary SCG cell
PSS：Primary Synchronization Signal，主同步信号PSS: Primary Synchronization Signal, the main synchronization signal
PSS-SL：Primary Synchronization Signal for Sidelink，直行主同步信号PSS-SL: Primary Synchronization Signal for Sidelink, straight main synchronization signal
PSSS：Primary Sidelink Synchronization Signal，主直行同步信号PSSS: Primary Sidelink Synchronization Signal, the main straight synchronization signal
PTAG：Primary Timing Advance Group，主定时提前组PTAG: Primary Timing Advance Group, the main timing advance group
PUSCH：Physical uplink shared channel，物理上行共享信道PUSCH: Physical uplink shared channel, physical uplink shared channel
PUCCH：Physical uplink control channel，物理上行控制信道PUCCH: Physical uplink control channel, physical uplink control channel
QCL：Quasi co-location，准共置QCL: Quasi co-location
QoS：Quality of Service，服务质量QoS: Quality of Service, quality of service
QZSS：Quasi-Zenith Satellite System，准天顶卫星系统QZSS: Quasi-Zenith Satellite System, Quasi-Zenith Satellite System
RAR：Random Access Response，随机接入响应RAR: Random Access Response, random access response
RB：Resource Block，资源块RB: Resource Block, resource block
RE：Resource Element，资源元素RE: Resource Element, resource element
REG：resource-element group，资源元素组REG: resource-element group, resource element group
RF：Radio Frequency，射频RF: Radio Frequency, radio frequency
RLC：Radio Link Control，无线链路控制协议RLC: Radio Link Control, Radio Link Control Protocol
RNTI：Radio-Network Temporary Identifier，无线网络临时标识符RNTI: Radio-Network Temporary Identifier, wireless network temporary identifier
RRC：Radio Resource Control，无线资源控制RRC: Radio Resource Control, Radio Resource Control
RV：Redundancy Version，冗余版本RV: Redundancy Version, redundant version
S-BWP：Sidelink Bandwidth Part，直行带宽片段S-BWP: Sidelink Bandwidth Part, straight bandwidth segment
S-MIB：Sidelink Master Information Block，直行主信息块S-MIB: Sidelink Master Information Block, straight main information block
S-PSS：Sidelink Primary Synchronization Signal，直行主同步信号S-PSS: Sidelink Primary Synchronization Signal, straight main synchronization signal
S-SSB：Sidelink SS/PBCH block，直行同步信号/物理广播信道块S-SSB: Sidelink SS/PBCH block, direct synchronization signal/physical broadcast channel block
S-SSS：Sidelink Secondary Synchronization Signal，直行辅同步信号S-SSS: Sidelink Secondary Synchronization Signal, straight auxiliary synchronization signal
SCell：Secondary Cell，次小区SCell: Secondary Cell, secondary cell
SCG：Secondary Cell Group，次小区组SCG: Secondary Cell Group, secondary cell group
SCI：Sidelink Control Information，直行控制信息SCI: Sidelink Control Information, straight control information
SCS：Subcarrier Spacing，子载波间隔SCS: Subcarrier Spacing, subcarrier spacing
SDAP：Service Data Adaptation Protocol，业务数据适配协议SDAP: Service Data Adaptation Protocol, business data adaptation protocol
SFN：System Frame Number，系统帧号SFN: System Frame Number, system frame number
SIB：System Information Block，系统信息块SIB: System Information Block, system information block
SL：Sidelink，直行SL: Sidelink, go straight
SL BWP：Sidelink Bandwidth Part，直行带宽片段SL BWP: Sidelink Bandwidth Part, straight bandwidth segment
SL MIB：Sidelink Master Information Block，直行主信息块SL MIB: Sidelink Master Information Block, straight main information block
SL PSS：Sidelink Primary Synchronization Signal，直行主同步信号SL PSS: Sidelink Primary Synchronization Signal, straight main synchronization signal
SL SS：Sidelink Synchronisation Signal，直行同步信号SL SS: Sidelink Synchronisation Signal, straight synchronization signal
SL SSID：Sidelink Synchronization Signal Identity(或者Sidelink Synchronization Signal Identifier)，直行同步信号标识SL SSID: Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), straight synchronization signal identifier
SL SSB：Sidelink SS/PBCH block，直行同步信号/物理广播信道块SL SSB: Sidelink SS/PBCH block, straight sync signal/physical broadcast channel block
SL SSS：Sidelink Secondary Synchronization Signal，直行辅同步信号SL SSS: Sidelink Secondary Synchronization Signal, straight auxiliary synchronization signal
SL-SCH：Sidelink Shared Channel，直行共享信道SL-SCH: Sidelink Shared Channel, straight shared channel
SLSS：Sidelink Synchronisation Signal，直行同步信号SLSS: Sidelink Synchronisation Signal, straight synchronization signal
SLSS ID：Sidelink Synchronization Signal Identity(或者Sidelink Synchronization Signal Identifier)，直行同步信号标识SLSS ID: Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), straight synchronization signal identifier
SLSSID：Sidelink Synchronization Signal Identity(或者Sidelink Synchronization Signal Identifier)，直行同步信号标识SLSSID: Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), straight synchronization signal identifier
SpCell：Special Cell，特殊小区SpCell: Special Cell, special cell
SRS：Sounding Reference Signal，探测参考信号SRS: Sounding Reference Signal, sounding reference signal
SSB：SS/PBCH block，同步信号/物理广播信道块SSB: SS/PBCH block, synchronization signal/physical broadcast channel block
SSB-SL：SS/PBCH block for Sidelink，直行同步信号/物理广播信道块SSB-SL: SS/PBCH block for Sidelink, straight sync signal/physical broadcast channel block
SSS：Secondary Synchronization Signal，辅同步信号SSS: Secondary Synchronization Signal, secondary synchronization signal
SSS-SL：Secondary Synchronization Signal for Sidelink，直行辅同步信号SSS-SL: Secondary Synchronization Signal for Sidelink, straight auxiliary synchronization signal
SSSB：Sidelink SS/PBCH block，直行同步信号/物理广播信道块SSSB: Sidelink SS/PBCH block, straight line synchronization signal/physical broadcast channel block
SSSS：Secondary Sidelink Synchronization Signal，辅直行同步信号SSSS: Secondary Sidelink Synchronization Signal, auxiliary straight line synchronization signal
STAG：Secondary Timing Advance Group，辅定时提前组STAG: Secondary Timing Advance Group, auxiliary timing advance group
Sub-channel：子信道Sub-channel: sub-channel
SUL：Supplementary Uplink，补充上行SUL: Supplementary Uplink, supplementary uplink
S-GW：Serving Gateway，服务网关S-GW: Serving Gateway, serving gateway
TA：Timing Advance，定时提前TA: Timing Advance, timing advance
TAG：Timing Advance Group，定时提前组TAG: Timing Advance Group, timing advance group
TB：Transport Block，传输块TB: Transport Block, transport block
TCP：Transmission Control Protocol，传输控制协议TCP: Transmission Control Protocol, Transmission Control Protocol
TDD：Time Division Duplex，时分双工TDD: Time Division Duplex, time division duplex
TPC：Transmit power control，传输功率控制TPC: Transmit power control, transmit power control
UE：User Equipment，用户设备UE: User Equipment, user equipment
UL：Uplink，上行UL: Uplink, uplink
UMTS：Universal Mobile Telecommunications System，通用移动通信系统UMTS: Universal Mobile Telecommunications System, Universal Mobile Telecommunications System
UPF：User Plane Function，用户面功能UPF: User Plane Function, user plane function
URLLC：Ultra-Reliable and Low Latency Communication，超可靠低延迟通信URLLC: Ultra-Reliable and Low Latency Communication, ultra-reliable and low-latency communication
USS：UE-specific Search Space，UE特定搜索空间USS: UE-specific Search Space, UE-specific search space
V2I：Vehicle-to-Infrastructure，车辆到基础设施V2I: Vehicle-to-Infrastructure, Vehicle-to-Infrastructure
V2N：Vehicle-to-network，车辆到网络V2N: Vehicle-to-network, vehicle to network
V2P：Vehicle-to-Pedestrian，车辆到行人V2P: Vehicle-to-Pedestrian, Vehicle to Pedestrian
V2V：Vehicle-to-vehicle，车辆到车辆V2V: Vehicle-to-vehicle, vehicle to vehicle
V2X：Vehicle-to-everything，车辆到任何实体V2X: Vehicle-to-everything, vehicle to any entity
VRB：Virtual Resource Block，虚拟资源块VRB: Virtual Resource Block, virtual resource block
在本发明的所有实施例和实施方式中，如未特别说明：In all examples and implementations of the present invention, if not specifically stated:
●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。Optionally, 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, 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.
●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)。Optionally, where the context is clear, a sequence of N elements x(0), x(1), ..., x(N-1) can be abbreviated as x(0), ... , x(N-1).
●可选地，一个有N个元素的序列的长度为N(或者说大小为N)。• Optionally, a sequence of N elements has length N (or size 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。- Optionally, where applicable, "V2X communication", "V2X SL communication" and "SL V2X communication" may be interchanged.
●可选地，在适用的情况下，“V2X通信”可以是基于NR SL的V2X通信。• Optionally, where applicable, "V2X communication" may be NR SL based V2X communication.
●可选地，在适用的情况下，“V2X通信”可以是基于LTE SL的V2X通信。• Optionally, where applicable, "V2X communication" may be LTE SL based V2X communication.
●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”。• Optionally, where the context is clear, it can be considered that 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".
●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”。• Optionally, in a TDD cell, a "non-SUL carrier" can be considered as a kind of "UL carrier" when the context is clear. For example, a TDD cell can be configured with one UL carrier, called a "non-SUL carrier". For another example, 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".
●可选地，在适用的情况下，“发送”和“传输”可以互换。- Optionally, where applicable, "send" and "transmit" are interchangeable.
●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RB，或者一个任意的“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)，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。Optionally, any of "within XX", "in XX" and "on XX", where applicable (eg when performing certain operation(s) on certain resource(s)) The two are interchangeable. Wherein, 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. PSSCH), or one or more sub-channels, or one or more RBGs, or an RB, or an arbitrary "chance" "(occasion, such as PDCCH listening opportunity, PSSCH transmission opportunity, PSSCH reception opportunity, PSFCH transmission opportunity, PSFCH reception opportunity), or a symbol, or a time slot, or a subframe, or a A field, or a frame, or an arbitrary time-domain and/or frequency-domain and/or code-domain and/or spatial-domain resource, etc.
●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 PCTCN2021109668-appb-000004
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，又如单个元素的集合的基数记作1，又如两个元素的集合的基数记作2，等等。 Optionally, if S 1 is a set, the cardinality of the set S 1 can be written as
Figure PCTCN2021109668-appb-000004
Optionally, 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 single-element set is recorded as 1, the cardinality of a two-element set is recorded as 2, etc. .
●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。 • Optionally, if S1 is a set, a subset of S1 may be a set of zero or one or more (including all) elements in S1.
●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。 Optionally, if S 1 and S 2 are two sets, then 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 .
●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 PCTCN2021109668-appb-000005
}。 Optionally, if S 1 and S 2 are two sets, then S 1 -S 2 ={x|x∈S 1 and
Figure PCTCN2021109668-appb-000005
}.
●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。 ● Optionally, 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 .
●可选地，“高层”可以指物理层之上的一个或多个协议层或协议子层。例如MAC层，又如RLC层，又如PDCP层，又如PC5RRC层，又如PC5-S层，又如RRC层，又如V2X层，又如应用层，又如V2X应用层，等等。• Optionally, "higher layers" may refer to one or more protocol layers or protocol sublayers above the physical layer. For example, the MAC layer, the RLC layer, the PDCP layer, the PC5RRC layer, the PC5-S layer, the RRC layer, the V2X layer, the application layer, the V2X application layer, and so on.
●可选地，“预配置”可以是在高层协议中进行预配置(pre-configure)。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。• Optionally, "pre-configuration" may be pre-configure in a higher layer protocol. For example, preset (eg, preset according to the specification of the high-level protocol) in a specific storage location in the UE, or preset (eg, preset according to the specification of the high-level protocol) in a specific storage location that the UE can access.
●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。● Optionally, "configuration" may be configured through signaling in a higher layer protocol. For example, it is configured for the UE through RRC signaling.
●可选地，“已配置”可以替换为“已预配置”。- Optionally, "configured" may be replaced with "preconfigured".
●可选地，“已配置”可以替换为“已配置或已预配置”。- Optionally, "configured" may be replaced with "configured or preconfigured".
●可选地，“已配置某参数”可以替换为“已提供某参数”。● Optionally, "a parameter has been configured" can be replaced with "a parameter has been provided".
●可选地，“已配置某参数”可以替换为“已通过信令指示(signaled)某参数”。• Optionally, "a certain parameter has been configured" may be replaced with "a certain parameter has been signaled".
●可选地，“未配置”可以替换为“未预配置”。- Optionally, "not configured" may be replaced by "not preconfigured".
●可选地，“未配置”可以替换为“未配置且或未预配置”。- Optionally, "not configured" may be replaced by "not configured and or preconfigured".
●可选地，“未配置”可以替换为“未(预)配置”。- Optionally, "not configured" may be replaced by "not (pre)configured".
●可选地，在上下文清楚的情况下，参数名字中的“-r8”、“-r9”、“-r10”、“-r11”、“-r12”、“-r13”、“-r14”、“-r15”、“-r16”等后缀可以去掉。例如，“pdsch-HARQ-ACK-CodebookList”可以用于指代参数 pdsch-HARQ-ACK-CodebookList-r16。Optionally, "-r8", "-r9", "-r10", "-r11", "-r12", "-r13", "-r14" in parameter names when the context is clear , "-r15", "-r16" and other suffixes can be removed. For example, "pdsch-HARQ-ACK-CodebookList" may be used to refer to the parameter pdsch-HARQ-ACK-CodebookList-r16.
●可选地，时域(time-domain)资源又可以称为时间(time)资源。• Optionally, time-domain resources may also be referred to as time resources.
●可选地，频域(frequency-domain)资源又可以称为频率(frequency)资源。• Optionally, frequency-domain resources may also be referred to as frequency resources.
●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。 • Optionally, 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. For example, 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.
●可选地，“时隙t”可以指编号为t的时隙。• Optionally, "time slot t" may refer to the time slot numbered t.
●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。• Optionally, the slots may be numbered within a subframe. For example, for a 30kHz SCS, the number of a slot in a subframe can be the value of any element in the set {0, 1}.
●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。• Optionally, the time slots may be numbered within a half frame. For example, for a 30kHz SCS, the number of a slot in a subframe can be the value of any element in the set {0, 1, . . . , 9}.
●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。• Optionally, the time slots may be numbered within the frame. For example, for a 30kHz SCS, the number of a slot in a subframe can be the value of any element in the set {0, 1, . . . , 19}.
●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。• Optionally, the time slots may be numbered within a frame numbering period (eg, 1024 frames). For example, for a 30kHz SCS, the number of a slot within 1024 frames can be the value of any element in the set {0, 1, . . . , 20479}.
●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。 ● Optionally, 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).
●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。 Optionally , for time slots t 1 , t 2 , . =t i -t 1 ) represents t i . Optionally, it can be considered that t 1 =0 at this time.
●可选地，“符号”指的是“OFDM符号”。- Optionally, "symbol" refers to "OFDM symbol".
●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}。• Optionally, within a time slot, the numbering of OFDM symbols may start from 0. For example, for a normal CP, the numbered set of OFDM symbols within one slot may be {0, 1, . . . , 13}. As another example, for extended CP, the set of numbers of OFDM symbols in one slot may be {0, 1, . . . , 11}.
●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。Optionally, 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.
●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 PCTCN2021109668-appb-000006
则子信道的编号的集合可以是
Figure PCTCN2021109668-appb-000007
• Optionally, the numbering of subchannels (or sub-channels) may start from 0. For example, if the number of sub-channels configured in the resource pool is
Figure PCTCN2021109668-appb-000006
Then the numbered set of subchannels can be
Figure PCTCN2021109668-appb-000007
●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}。• Optionally, within a resource block, the numbering of subcarriers may start from 0. For example, the numbered set of subcarriers within one resource block may be {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， Optionally, the value of a parameter with a size of L bits (such as an RRC parameter) 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,
◆可选地，所述比特串‘b 0b1...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。 ◆Optionally, in the bit string 'b 0 b1...b L-1 ', the first (ie, the leftmost) bit (ie, b 0 ) is the most significant bit, and the last (ie, the rightmost) bit is the most significant bit. ) bit (ie b L-1 ) is the least significant bit. For example, if L=3, and 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.
◆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。 ◆Optionally, in the bit string 'b 0 b 1 ...b L-1 ', the first (ie, the leftmost) bit (ie, b 0 ) is the least significant bit, and the last (ie, the rightmost) bit ) bit (ie b L-1 ) is the most significant bit. For example, if L=3, and 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.
●可选地，ACK可以对应整数0，NACK可以对应整数1。● Optionally, ACK may correspond to integer 0, and NACK may correspond to integer 1.
●可选地，ACK可以对应整数1，NACK可以对应整数0。● Optionally, ACK may correspond to integer 1, and NACK may correspond to integer 0.
●可选地，“DCI”可以指代一个适用的DCI格式。例如DCI格 式3_0。• Optionally, "DCI" may refer to an applicable DCI format. For example DCI format 3_0.
●可选地，“SL传输”可以指下面中的任意一项：- Optionally, "SL transport" may refer to any of the following:
◆PSCCH传输。◆PSCCH transmission.
◆PSSCH传输。◆PSSCH transmission.
◆PSCCH和PSSCH传输。◆ PSCCH and PSSCH transmission.
◆PSCCH或PSSCH传输。◆ PSCCH or PSSCH transmission.
◆PSFCH传输。◆ PSFCH transmission.
◆S-SSB传输。◆S-SSB transmission.
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。In the communication based on D2D (Device to Device) technology, the interface between devices (also known as user equipment, User Equipment, UE) 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. Hereinafter, unless otherwise specified, "SL" refers to NR SL, and "SL communication" refers to NR SL communication.
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。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.
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。 For FR1 (Frequency Range 1, frequency range 1), the SCS (subcarrier spacing, subcarrier spacing, denoted as Δf, in kHz) corresponding to the SL link can be 15kHz (normal CP), or 30kHz (normal CP), or 60kHz (normal CP or extended CP); for FR2 (Frequency Range 2, frequency range 2), the SCS corresponding to the SL link can be 60kHz (normal CP or extended CP), or 120kHz (normal CP). Each SCS corresponds to an SCS configuration (SCS configuration, denoted as μ), for example, Δf=15kHz corresponds to μ=0, Δf=30kHz corresponds to μ=1, Δf=60kHz corresponds to μ=2, and Δf=120kHz corresponds to μ=3 , and so on; another example, for any given μ, Δf=2 μ ·15kHz. μ 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. μ 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. μ 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.
与SL操作有关的信号和信道可以包括：Signals and channels related to SL operation can include:
●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 PSS (Sidelink Primary Synchronization Signal), or S-PSS, or SPSS, or SL-PSS, or PSS-SL, or PSSS (Primary Sidelink Synchronization Signal) , the main straight sync signal), and so on.
●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。SL SSS (Sidelink Secondary Synchronization Signal), or S-SSS, or SSSS (Sidelink Secondary Synchronization Signal), or SL-SSS, or SSS-SL, or SSSS (Secondary Sidelink Synchronization Signal), etc.
●PSBCH(Physical Sidelink Broadcast Channel，物理直行广播信道)。●PSBCH (Physical Sidelink Broadcast Channel, physical direct broadcast channel).
●PSCCH(Physical Sidelink Control Channel，物理直行控制信道)。●PSCCH (Physical Sidelink Control Channel, physical direct control channel).
●PSSCH(Physical Sidelink Shared Channel，物理直行共享信道)。●PSSCH (Physical Sidelink Shared Channel, physical direct shared channel).
●PSFCH(Physical Sidelink Feedback Channel，物理直行反馈信道)。●PSFCH (Physical Sidelink Feedback Channel, physical direct feedback channel).
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。SL PSS, SL SSS and PSBCH together can be organized in a block-like form on time/frequency resources, such as called S-SSB (Sidelink Synchronization Signal/PSBCH block, or SSS/PSBCH block, straight synchronization signal/ Physical Direct Broadcast Channel Block), or SSS/PSBCH block, or SS/PSBCH block, or S-SS/PSBCH block, or SL SSB, or SSSB, or SL-SSB , or SSB-SL. The transmission bandwidth (eg, 11 resource blocks) of the S-SSB may be located within the corresponding SL carrier (eg, within one SL BWP configured within the SL carrier). SL PSS and/or SL SSS may carry SL SSID (Sidelink Synchronization Identity, or Sidelink Synchronization Identifier, straight-line synchronization identifier, or Sidelink Synchronization Signal Identity, or Sidelink Synchronization Signal Identifier, straight-line synchronization signal identifier, or 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.
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 PCTCN2021109668-appb-000008
个S-SSB，其中，编号(或者说索引)为i S-SSB
Figure PCTCN2021109668-appb-000009
Figure PCTCN2021109668-appb-000010
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 PCTCN2021109668-appb-000011
其中
Figure PCTCN2021109668-appb-000012
可以通过参数timeOffsetSSB-SL(或者参数sl-TimeOffsetSSB)配置，
Figure PCTCN2021109668-appb-000013
可以通过参数timeIntervalSSB-SL(或者参数sl-TimeInterval)配置。 On the SL link, the time domain and/or frequency domain resources for transmitting the S-SSB can be configured by high layer parameters. For example, in the frequency domain, the position of the S-SSB in the frequency domain can be configured through the parameter absoluteFrequencySSB-SL (or the parameter sl-AbsoluteFrequencySSB). For another example, in the time domain, 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
Figure PCTCN2021109668-appb-000008
S-SSBs, where the number (or index) is i S-SSB
Figure PCTCN2021109668-appb-000009
Figure PCTCN2021109668-appb-000010
The index of the time slot (slot) where the S-SSB is located in a period with a length of 16 frames can be
Figure PCTCN2021109668-appb-000011
in
Figure PCTCN2021109668-appb-000012
It can be configured by parameter timeOffsetSSB-SL (or parameter sl-TimeOffsetSSB),
Figure PCTCN2021109668-appb-000013
It can be configured through the parameter timeIntervalSSB-SL (or parameter sl-TimeInterval).
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。Sometimes, it may be considered that 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). 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.
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。Sometimes, 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.
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。The synchronization source (synchronization source, or synchronization reference, or synchronization reference source, synchronization reference source) related to SL synchronization may 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). A UE serving as a synchronization source (eg, a UE transmitting S-SSB) may be referred to as a 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。Examples of 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.
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 PCTCN2021109668-appb-000014
)，以及通过参数lengthSLsymbols(或者参数si-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 PCTCN2021109668-appb-000015
)，其中所述
Figure PCTCN2021109668-appb-000016
个符号可以是连续的符号。
Figure PCTCN2021109668-appb-000017
的取值集合可以记为
Figure PCTCN2021109668-appb-000018
例如
Figure PCTCN2021109668-appb-000019
的取值集合可以记为
Figure PCTCN2021109668-appb-000020
例如
Figure PCTCN2021109668-appb-000021
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 PCTCN2021109668-appb-000022
则
Figure PCTCN2021109668-appb-000023
Figure PCTCN2021109668-appb-000024
例如，若
Figure PCTCN2021109668-appb-000025
则SL符号的集合为{7，8，9，10，11，12，13}。 One or more (eg, one) SL BWPs may be configured within the SL carrier. For each SL BWP, 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
Figure PCTCN2021109668-appb-000014
), and configure the number of symbols that can be used for SL transmission through the parameter lengthSLsymbols (or the parameter si-LengthSymbols) (for example, record the number of symbols as
Figure PCTCN2021109668-appb-000015
), where the
Figure PCTCN2021109668-appb-000016
symbols can be consecutive symbols.
Figure PCTCN2021109668-appb-000017
The set of values can be written as
Figure PCTCN2021109668-appb-000018
For example
Figure PCTCN2021109668-appb-000019
The set of values can be written as
Figure PCTCN2021109668-appb-000020
For example
Figure PCTCN2021109668-appb-000021
The "symbols available for SL transmission" may be referred to as "SL symbols". Denote the set of SL symbols (in chronological order) as
Figure PCTCN2021109668-appb-000022
but
Figure PCTCN2021109668-appb-000023
Figure PCTCN2021109668-appb-000024
For example, if
Figure PCTCN2021109668-appb-000025
Then the set of SL symbols is {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 PCTCN2021109668-appb-000026
符号
Figure PCTCN2021109668-appb-000027
符号
Figure PCTCN2021109668-appb-000028
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。 Only time slots that meet certain conditions can be used for SL transmission. For example, at least symbols in the slot
Figure PCTCN2021109668-appb-000026
symbol
Figure PCTCN2021109668-appb-000027
symbol
Figure PCTCN2021109668-appb-000028
is an uplink symbol (for example, a time slot that satisfies the condition configured through tdd-UL-DL-ConfigurationCommon in servingCellConfigCommon in SIB1). For another example, the time slot must be in a set of time slots in a configured resource pool.
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，One or more resource pools can be configured in an SL BWP, and in each resource pool,
●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。● In the frequency domain, 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).
●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。 ●In the frequency domain, 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.
●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 PCTCN2021109668-appb-000029
)。所述
Figure PCTCN2021109668-appb-000030
个子信道在频域上可以是连续的。 ● 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
Figure PCTCN2021109668-appb-000029
). said
Figure PCTCN2021109668-appb-000030
The subchannels may be contiguous in the frequency domain.
●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 PCTCN2021109668-appb-000031
)。可选地，UE可以假定所述
Figure PCTCN2021109668-appb-000032
个PRB中的最后
Figure PCTCN2021109668-appb-000033
个PRB不会被使用。 ● In the frequency domain, the number of PRBs occupied by the resource pool can be configured through the parameter sl-RB-Number (denoted as
Figure PCTCN2021109668-appb-000031
). Alternatively, the UE may assume that the
Figure PCTCN2021109668-appb-000032
the last of the PRBs
Figure PCTCN2021109668-appb-000033
PRBs will not be used.
●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 PCTCN2021109668-appb-000034
其中，编号为i的子信道可以称为“子信道i”
Figure PCTCN2021109668-appb-000035
●In the frequency domain, in order of frequency from small to large, each sub-channel in a resource pool can be numbered as
Figure PCTCN2021109668-appb-000034
Among them, the sub-channel numbered i can be called "sub-channel i"
Figure PCTCN2021109668-appb-000035
●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，...}。 ● In the time domain, a time slot bitmap can be configured through the parameter timeresourcepool (or parameter sl-TimeResource) to indicate which time slot or time slots in a candidate time slot set belong to the resource pool. It can be seen that two consecutive time slots in one resource pool may be discontinuous in time (eg, time slot 0 and time slot 6 in one frame may be two consecutive time slots in one resource pool). For convenience, the set of time slots in a resource pool can be denoted as {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：The allocation of resources related to SL operations (such as time domain resources, or frequency domain resources, or code domain resources) can be classified as follows:
●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。● 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.
●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。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.
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。 The UE may schedule data transmission through SCI (Sidelink 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. Hereinafter, unless otherwise specified, when referring to "SCI" alone, where applicable, it may refer to the first stage SCI, or the second stage SCI, or the first stage SCI and the second stage SCI.
第一阶段SCI的格式可以足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：The format of the first stage SCI can be SCI format 1-A (or written as "SCI format 1_A"). The following are some examples of information that can be included in SCI Format 1-A:
●优先级(Priority)。● Priority (Priority).
●频率资源分配(Frequency resource assignment)。● Frequency resource assignment (Frequency resource assignment).
●时间资源分配(Time resource assignment)。● Time resource assignment (Time resource assignment).
●资源预留周期(Resource reservation period)。●Resource reservation period (Resource reservation period).
●DMRS模式(DMRS pattern)。● DMRS pattern (DMRS pattern).
●第二阶段SCI格式(2 nd-stage SCI format)。 ●The second stage SCI format ( 2nd -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：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"). The following are some examples of information that can be included in SCI Format 2-A and/or SCI Format 2-B:
●源层一标识符(Source Layer-1 ID，或者称为Layer-1Source 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)。Source Layer-1 ID (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) called Source ID, source identifier).
●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)。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进程标识(HARQ Process ID)，或者说HARQ进程号(HARQ Process Number)。●HARQ process identification (HARQ Process ID), or HARQ process number (HARQ Process Number).
●新数据标识(New Data Indicator，NDI)。● New Data Indicator (New Data Indicator, NDI).
●冗余版本(Redundancy Version，RV)。●Redundancy Version (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)。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). In addition, it can be considered that 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).
“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：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:
●在一个资源池中的一个时隙。• A time slot in a resource pool.
●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。• One or more symbols related to PSSCH transmission in one slot in one resource pool.
●在一个资源池中的一个或多个时隙。• One or more time slots in a resource pool.
●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。• One or more symbols associated with PSSCH transmissions in one or more time slots in a resource pool.
“PSSCH传输时机”也可以称为“PSCCH-PSSCH传输时机”。The "PSSCH transmission occasion" may also be referred to as the "PSCCH-PSSCH transmission occasion".
“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)。The definition of "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).
“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：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:
●在一个资源池中的一个时隙。• A time slot in a resource pool.
●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。• One or more symbols related to PSSCH transmission and/or reception in a slot in a resource pool.
●在一个资源池中的一个或多个时隙。• One or more time slots in a resource pool.
●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。• One or more symbols related to PSSCH transmission and/or reception in one or more time slots in a resource pool.
“PSSCH接收时机”也可以称为“PSCCH-PSSCH接收时机”。"PSSCH reception timing" may also be referred to as "PSCCH-PSSCH reception timing".
“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)。The definition of "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).
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)”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)。For an SL transmission containing PSCCH and/or PSSCH, the sender may be referred to as a TX UE and the receiver may be referred to as an RX UE. If HARQ feedback is enabled, the RX UE may feed back information related to PSCCH and/or PSSCH reception (eg, referred to as "HARQ-ACK information") over the PSFCH. For example, when the RX UE receives one PSSCH in one resource pool, and the value of the "HARQ feedback enabled/disabled indicator" in the corresponding SCI is 1, the RX UE HARQ-ACK information is provided 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". In some configurations, the HARQ-ACK information related to SL transmission reported on the SL may indicate an acknowledgment (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, reported on the SL HARQ-ACK related to SL transmission 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”。"PSSCH transmission opportunity" and "PSSCH reception opportunity" can be considered to be defined from the perspectives of TX UE and RX UE respectively. For example, 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.
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 PCTCN2021109668-appb-000036
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 PCTCN2021109668-appb-000037
或者
Figure PCTCN2021109668-appb-000038
或者
Figure PCTCN2021109668-appb-000039
或者
Figure PCTCN2021109668-appb-000040
)。其中，
Figure PCTCN2021109668-appb-000041
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(例如通过sl-PSFCH-Config进行配置的参数)或者参数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参数sl-PSFCH-Config且参数sl-PSFCH-Config中配置的PSFCH周期大于0时隙，则表示所述资源池已配置PSFCH资源。 In the time domain (time domain), 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
Figure PCTCN2021109668-appb-000036
For example, the unit is the number of time slots) can be configured through the parameter periodPSFCHresource (or parameter sl-PSFCH-Period), for example, configure as
Figure PCTCN2021109668-appb-000037
or
Figure PCTCN2021109668-appb-000038
or
Figure PCTCN2021109668-appb-000039
or
Figure PCTCN2021109668-appb-000040
). in,
Figure PCTCN2021109668-appb-000041
It can be used to indicate that there is no PSFCH resource configured in the corresponding resource pool. For example, if a resource pool is not configured with PSFCH-related parameters (for example, parameters configured through sl-PSFCH-Config) or the PSFCH period configured in the parameter sl-PSFCH-Config is 0, it means that the resource pool is not configured with PSFCH resources . For another example, if the parameter s1-PSFCH-Config has been configured in a resource pool and the PSFCH period configured in the parameter s1-PSFCH-Config is greater than 0 timeslots, it means that the resource pool has been configured with PSFCH resources.
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 PCTCN2021109668-appb-000042
符号
Figure PCTCN2021109668-appb-000043
和符号
Figure PCTCN2021109668-appb-000044
Figure PCTCN2021109668-appb-000045
)。其中，符号
Figure PCTCN2021109668-appb-000046
可以用于AGC，另外，此符号上传输的内容可以复制自符号
Figure PCTCN2021109668-appb-000047
上传输的内容)；符号
Figure PCTCN2021109668-appb-000048
可以用于PSFCH传输；符号
Figure PCTCN2021109668-appb-000049
可以用作间隔(GAP)符号，或者保护(GUARD)符号。一个PSFCH时隙的其他符号可以用于发送其他SL信号/信道，如PSCCH、PSSCH等。 A time slot in which PSFCH resources are configured may be referred to as a "PSFCH time slot". Within a PSFCH slot, the symbols related to PSFCH transmission may be the last one or more SL symbols of that slot, eg, for PSFCH format 0, may be the last three SL symbols (eg the symbol
Figure PCTCN2021109668-appb-000042
symbol
Figure PCTCN2021109668-appb-000043
and symbol
Figure PCTCN2021109668-appb-000044
Figure PCTCN2021109668-appb-000045
). Among them, the symbol
Figure PCTCN2021109668-appb-000046
Can be used for AGC, in addition, the content transmitted on this symbol can be copied from the symbol
Figure PCTCN2021109668-appb-000047
content transmitted on); symbol
Figure PCTCN2021109668-appb-000048
Can be used for PSFCH transmission; symbol
Figure PCTCN2021109668-appb-000049
Can be used as a gap (GAP) symbol, or a guard (GUARD) symbol. Other symbols of one PSFCH slot can be used to transmit other SL signals/channels, such as PSCCH, PSSCH, etc.
在一个已配置PSFCH资源的资源池中，
Figure PCTCN2021109668-appb-000050
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： In a resource pool with configured PSFCH resources,
Figure PCTCN2021109668-appb-000050
Timeslots (eg, such timeslots are referred to as "PSSCH timeslots") may be associated with one PSFCH timeslot. For example, the association can be as follows:
●所述
Figure PCTCN2021109668-appb-000051
个PSSCH时隙是在所述资源池中连续的时隙。 ●Described
Figure PCTCN2021109668-appb-000051
PSSCH slots are consecutive slots in the resource pool.
●对于所述
Figure PCTCN2021109668-appb-000052
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 PCTCN2021109668-appb-000053
个时隙后的第一个PSFCH时隙。其中，
Figure PCTCN2021109668-appb-000054
可以通过参数sl-MinTimeGapPSFCH进行配置。 ●For the
Figure PCTCN2021109668-appb-000052
For each of the PSSCHs, the PSFCH slot is located in the resource pool for at least that PSSCH slot
Figure PCTCN2021109668-appb-000053
The first PSFCH slot after slots. in,
Figure PCTCN2021109668-appb-000054
It can be configured through the parameter sl-MinTimeGapPSFCH.
例如，若
Figure PCTCN2021109668-appb-000055
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关联到所述PSFCH时隙r n+5。 For example, if
Figure PCTCN2021109668-appb-000055
and time slot r n +5 is a PSFCH time slot in the resource pool, then the time slot rn , time slot rn +1 , time slot rn +2 and time slot rn + in the resource pool 3 is associated to the PSFCH slot rn +5 .
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 PCTCN2021109668-appb-000056
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 PCTCN2021109668-appb-000057
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。 In the frequency domain, the PSFCH resources in a resource pool can correspond to a size of
Figure PCTCN2021109668-appb-000056
A set of PRBs (for example, a set of continuous PRBs, or a set of partially or completely discontinuous PRBs). in,
Figure PCTCN2021109668-appb-000057
It can be configured through the parameter rbSetPSFCH, or through the parameter sl-PSFCH-RB-Set.
在码域(code domain)，一个资源池内的PSFCH资源可以对应
Figure PCTCN2021109668-appb-000058
个循环移位对(cyclic shift pair)。其中，
Figure PCTCN2021109668-appb-000059
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)。 In the code domain, the PSFCH resources in a resource pool can correspond to
Figure PCTCN2021109668-appb-000058
a cyclic shift pair. in,
Figure PCTCN2021109668-appb-000059
It can be configured or instructed by higher layer protocols (eg by parameter sl-NumMuxCS-Pair).
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 PCTCN2021109668-appb-000060
个PSSCH时隙分别为时隙
Figure PCTCN2021109668-appb-000061
Figure PCTCN2021109668-appb-000062
所述资源池的
Figure PCTCN2021109668-appb-000063
个子信道的编号分别为
Figure PCTCN2021109668-appb-000064
所述资源池配置的
Figure PCTCN2021109668-appb-000065
个用于PSFCH的PRB的编号分别为
Figure PCTCN2021109668-appb-000066
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 PCTCN2021109668-appb-000067
Figure PCTCN2021109668-appb-000068
其中
Figure PCTCN2021109668-appb-000069
Figure PCTCN2021109668-appb-000070
In a resource pool with configured PSFCH resources, in a PSFCH time slot, record the PSFCH time slot associated with the
Figure PCTCN2021109668-appb-000060
PSSCH time slots are time slots
Figure PCTCN2021109668-appb-000061
Figure PCTCN2021109668-appb-000062
of the resource pool
Figure PCTCN2021109668-appb-000063
The numbers of the sub-channels are
Figure PCTCN2021109668-appb-000064
The resource pool configured
Figure PCTCN2021109668-appb-000065
The numbers of the PRBs used for PSFCH are
Figure PCTCN2021109668-appb-000066
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)
Figure PCTCN2021109668-appb-000067
Figure PCTCN2021109668-appb-000068
in
Figure PCTCN2021109668-appb-000069
Figure PCTCN2021109668-appb-000070
对于在时隙i内、占用从子信道j开始的
Figure PCTCN2021109668-appb-000071
个连续的子信道的一个PSSCH传输，相应的PSFCH资源可以占用
Figure PCTCN2021109668-appb-000072
个PRB，其中，
Figure PCTCN2021109668-appb-000073
的取值可以是个整数。例如，
Figure PCTCN2021109668-appb-000074
(例如当参数sl-PSFCH-CandidateResourceType配置为“startSubCH”时)。又如，
Figure PCTCN2021109668-appb-000075
(例如当参数sl-PSFCH-CandidateResourceType配置为 “allocSubCH”时)，此时，所述
Figure PCTCN2021109668-appb-000076
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 PCTCN2021109668-appb-000077
对应的PRB范围组成。 For the occupancy starting from subchannel j in time slot i
Figure PCTCN2021109668-appb-000071
One PSSCH transmission of consecutive sub-channels, the corresponding PSFCH resources can be occupied
Figure PCTCN2021109668-appb-000072
PRBs, of which,
Figure PCTCN2021109668-appb-000073
The value of can be an integer. For example,
Figure PCTCN2021109668-appb-000074
(eg when the parameter sl-PSFCH-CandidateResourceType is configured as "startSubCH"). Another example,
Figure PCTCN2021109668-appb-000075
(For example, when the parameter sl-PSFCH-CandidateResourceType is configured as "allocSubCH"), at this time, the
Figure PCTCN2021109668-appb-000076
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
Figure PCTCN2021109668-appb-000077
Corresponding PRB range composition.
所述
Figure PCTCN2021109668-appb-000078
个PRB可以对应
Figure PCTCN2021109668-appb-000079
Figure PCTCN2021109668-appb-000080
个“PSFCH资源”(PSFCH resource)，其索引(或者编号)方式可以是，先按照
Figure PCTCN2021109668-appb-000081
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 PCTCN2021109668-appb-000082
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。 said
Figure PCTCN2021109668-appb-000078
PRBs can correspond to
Figure PCTCN2021109668-appb-000079
Figure PCTCN2021109668-appb-000080
a "PSFCH resource" (PSFCH resource), and its index (or number) can be as follows:
Figure PCTCN2021109668-appb-000081
The PRB index (or number) of each PRB is indexed (or numbered) in increasing order, and then
Figure PCTCN2021109668-appb-000082
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.
“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：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:
●一个配置了PSFCH资源的时隙。● A time slot configured with PSFCH resources.
●一个PSFCH时隙。• One PSFCH slot.
●在一个资源池中的一个配置了PSFCH资源的时隙。• A time slot in a resource pool where PSFCH resources are configured.
●在一个资源池中的一个PSFCH时隙。• One PSFCH slot in one resource pool.
●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)。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.).
●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)。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.).
●一个PSFCH资源。• A PSFCH resource.
●一个PSFCH资源所对应的时域资源。● Time domain resources corresponding to one PSFCH resource.
●一个PSFCH资源所对应的频域资源。● A frequency domain resource corresponding to a PSFCH resource.
●一个PSFCH资源所对应的码域资源。● A code domain resource corresponding to a PSFCH resource.
●一个PSFCH资源所对应的时域资源和频域资源。● Time domain resources and frequency domain resources corresponding to one PSFCH resource.
●一个PSFCH资源所对应的时域资源和码域资源。● Time domain resources and code domain resources corresponding to a PSFCH resource.
●一个PSFCH资源所对应的频域资源和码域资源。● Frequency domain resources and code domain resources corresponding to a PSFCH resource.
●一个PSFCH资源所对应的时域资源、频域资源和码域资源。● Time domain resources, frequency domain resources and code domain resources corresponding to a PSFCH resource.
●一个或多个PSFCH资源。• One or more PSFCH resources.
●一个或多个PSFCH资源所对应的时域资源。● Time domain resources corresponding to one or more PSFCH resources.
●一个或多个PSFCH资源所对应的频域资源。● Frequency domain resources corresponding to one or more PSFCH resources.
●一个或多个PSFCH资源所对应的码域资源。● Code domain resources corresponding to one or more PSFCH resources.
●一个或多个PSFCH资源所对应的时域资源和频域资源。● Time domain resources and frequency domain resources corresponding to one or more PSFCH resources.
●一个或多个PSFCH资源所对应的时域资源和码域资源。● Time domain resources and code domain resources corresponding to one or more PSFCH resources.
●一个或多个PSFCH资源所对应的频域资源和码域资源。● Frequency domain resources and code domain resources corresponding to one or more PSFCH resources.
●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。● Time domain resources, frequency domain resources and code domain resources corresponding to one or more PSFCH resources.
“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)。The definition of "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).
“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：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:
●一个配置了PSFCH资源的时隙。● A time slot configured with PSFCH resources.
●一个PSFCH时隙。• One PSFCH slot.
●在一个资源池中的一个配置了PSFCH资源的时隙。• A time slot in a resource pool where PSFCH resources are configured.
●在一个资源池中的一个PSFCH时隙。• One PSFCH slot in one resource pool.
●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)。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.).
●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)。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.).
●一个PSFCH资源。• A PSFCH resource.
●一个PSFCH资源所对应的时域资源。● Time domain resources corresponding to one PSFCH resource.
●一个PSFCH资源所对应的频域资源。● A frequency domain resource corresponding to a PSFCH resource.
●一个PSFCH资源所对应的码域资源。● A code domain resource corresponding to a PSFCH resource.
●一个PSFCH资源所对应的时域资源和频域资源。● Time domain resources and frequency domain resources corresponding to one PSFCH resource.
●一个PSFCH资源所对应的时域资源和码域资源。● Time domain resources and code domain resources corresponding to a PSFCH resource.
●一个PSFCH资源所对应的频域资源和码域资源。● Frequency domain resources and code domain resources corresponding to a PSFCH resource.
●一个PSFCH资源所对应的时域资源、频域资源和码域资源。● Time domain resources, frequency domain resources and code domain resources corresponding to a PSFCH resource.
●一个或多个PSFCH资源。• One or more PSFCH resources.
●一个或多个PSFCH资源所对应的时域资源。● Time domain resources corresponding to one or more PSFCH resources.
●一个或多个PSFCH资源所对应的频域资源。● Frequency domain resources corresponding to one or more PSFCH resources.
●一个或多个PSFCH资源所对应的码域资源。● Code domain resources corresponding to one or more PSFCH resources.
●一个或多个PSFCH资源所对应的时域资源和频域资源。● Time domain resources and frequency domain resources corresponding to one or more PSFCH resources.
●一个或多个PSFCH资源所对应的时域资源和码域资源。● Time domain resources and code domain resources corresponding to one or more PSFCH resources.
●一个或多个PSFCH资源所对应的频域资源和码域资源。● Frequency domain resources and code domain resources corresponding to one or more PSFCH resources.
●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。● Time domain resources, frequency domain resources and code domain resources corresponding to one or more PSFCH resources.
“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)。The definition of "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”。"PSFCH transmission opportunity" and "PSFCH reception opportunity" can be considered to be defined from the perspectives of TX UE and RX UE respectively. For example, 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.
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-1SL配置许可(type 1 sidelink configured grant，或者sidelink configured grant type 1)和类型-2SL配置许可(type 2 sidelink configured grant，或者sidelink 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。The network side (eg, base station, etc.) may configure one or more "SL configuration grants" (SL configured grants, or SL grants for short when the context is clear) for the UE (eg, TX UE), for example, through the parameter sl-ConfiguredGrantConfigList to configure. Each SL configuration grant can be associated with periodic PSSCH transmission resources (or can schedule periodic PSSCH transmission), wherein the corresponding period can be configured by 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-1SL configuration licenses (type 1 sidelink configured grant, or sidelink configured grant type 1) and type-2SL configuration licenses (type 2 sidelink configured grant, or sidelink configured grant type 2), where the former is associated with Resources can be configured and/or activated and/or deactivated through semi-static signaling (such as RRC signaling), the latter associated resources can be configured through semi-static signaling (such as RRC signaling), and the configured resources can be Activated and/or deactivated dynamically (eg via DCI).
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)。The network side (eg, base station, etc.) 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).
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)上行资源(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”。The network side (eg, base station, etc.) may provide (eg, provided by RRC configuration, eg, indicated by DCI) uplink resources (eg, PUCCH resources, eg, PUSCH resources) for the UE (eg, TX UE) for reporting related to SL transmission. The HARQ-ACK information, for example, 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".
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：Specifically, 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。• 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.
●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。● 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). As another example, the SCI that schedules the data transmission on the direct link indicates that the UE receiving the data transmission does not need to send a HARQ-ACK (eg, HARQ-ACK carried over the PSFCH). For another example, 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. For another example, no PSFCH resource is configured in the corresponding resource pool. For another example, the PSFCH is not detected at the corresponding PSFCH reception occasion.
●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。• PSCCH and/or PSSCH transmission. For example, the TX UE sends the PSCCH and/or PSSCH on the SL resource indicated by the base station through the DCI.
●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。• No PSCCH and/or PSSCH transmission. For example, transmission of PSCCH and/or PSSCH cannot be performed in a time slot where PSCCH and/or PSSCH would otherwise be transmitted due to performing other higher priority tasks (eg, performing higher priority UL transmission). As another example, the 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.
作为对比，UE还可以在上行资源(例如PUCCH，又如PUSCH)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：In contrast, the UE can also report HARQ-ACK information related to DL transmission on uplink resources (eg, PUCCH, or PUSCH) (correspondingly, use the HARQ-ACK codebook related to DL transmission) for feedback downlink. Sending and/or receiving of data and/or control information on the road (for example, sending and/or receiving status; another example, sending and/or receiving result; another example, not performing transmission; another example, not performing reception; etc). Such HARQ-ACK information may be referred to as "HARQ-ACK information related to DL transmission reported on UL". Specifically, 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:
●有相应的PDCCH接收的PDSCH接收。• PDSCH reception with corresponding PDCCH reception.
●无相应的PDCCH接收的PDSCH接收(例如，SPS PDSCH接收)。• PDSCH reception without corresponding PDCCH reception (eg SPS PDSCH reception).
●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)。• PDCCH reception. For example, the "SPS PDSCH release" indication is indicated in the DCI carried by the PDCCH. For another example, the DCI carried by the PDCCH indicates "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。In all embodiments and implementations of the present invention, "HARQ-ACK information" refers to HARQ-ACK information related to SL transmission reported on the UL, unless otherwise specified.
对结束于时隙n的
Figure PCTCN2021109668-appb-000083
个PSFCH接收时机(例如，所述时隙n是所述
Figure PCTCN2021109668-appb-000084
个PSFCH接收时机所分别对应的时隙中的最后一个)，UE在时隙n+k内的一个UL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之间的偏移满足“PSFCH到上行HARQ反馈之间的定时(timing)关系”。其中， for the end of slot n
Figure PCTCN2021109668-appb-000083
PSFCH reception occasions (eg, the slot n is the
Figure PCTCN2021109668-appb-000084
The last one of the time slots corresponding to each of the PSFCH reception opportunities), the UE reports (or provides) the corresponding HARQ-ACK information in a UL transmission in the time slot n+k. At this time, it can be said that the offset between the time slot n and the time slot n+k satisfies the "timing relationship between the PSFCH and the uplink HARQ feedback". in,
●可选地，
Figure PCTCN2021109668-appb-000085
是一个整数，且
Figure PCTCN2021109668-appb-000086
例如，
Figure PCTCN2021109668-appb-000087
又如
Figure PCTCN2021109668-appb-000088
又如，
Figure PCTCN2021109668-appb-000089
● optionally,
Figure PCTCN2021109668-appb-000085
is an integer, and
Figure PCTCN2021109668-appb-000086
For example,
Figure PCTCN2021109668-appb-000087
another example
Figure PCTCN2021109668-appb-000088
Another example,
Figure PCTCN2021109668-appb-000089
●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。● Optionally, 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). In other words, 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.
●可选地，所述
Figure PCTCN2021109668-appb-000090
个PSFCH接收时机(或者所述
Figure PCTCN2021109668-appb-000091
个PSFCH接收时机所在的时隙)分别关联同一个DCI格式(例如DCI格式3_0)调度的
Figure PCTCN2021109668-appb-000092
个PSSCH传输。其中， ● optionally, the
Figure PCTCN2021109668-appb-000090
PSFCH reception occasions (or the
Figure PCTCN2021109668-appb-000091
The time slots where the PSFCH reception opportunities are located) are respectively associated with the same DCI format (eg DCI format 3_0) scheduled
Figure PCTCN2021109668-appb-000092
PSSCH transmission. in,
◆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 PCTCN2021109668-appb-000093
等于所述DCI格式调度的PSSCH传输的个数。 Optionally, 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. Optionally,
Figure PCTCN2021109668-appb-000093
Equal to the number of PSSCH transmissions scheduled in the DCI format.
◆可选地，
Figure PCTCN2021109668-appb-000094
是一个预定义的整数。例如
Figure PCTCN2021109668-appb-000095
可选地，此时，所述
Figure PCTCN2021109668-appb-000096
个PSSCH传输可以是所述DCI格式调度的任意一个PSSCH传输。 ◆ Optionally,
Figure PCTCN2021109668-appb-000094
is a predefined integer. For example
Figure PCTCN2021109668-appb-000095
Optionally, at this time, the
Figure PCTCN2021109668-appb-000096
The PSSCH transmissions may be any one of the PSSCH transmissions scheduled by the DCI format.
●可选地，所述
Figure PCTCN2021109668-appb-000097
个PSFCH接收时机(或者所述
Figure PCTCN2021109668-appb-000098
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 PCTCN2021109668-appb-000099
个PSSCH传输。其中， ● optionally, the
Figure PCTCN2021109668-appb-000097
PSFCH reception occasions (or the
Figure PCTCN2021109668-appb-000098
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.
Figure PCTCN2021109668-appb-000099
PSSCH transmission. in,
◆可选地，例如对于类型-1SL配置许可，所述偏移量“k”可以通过参数sl-PSFCH-ToPUCCH-CG-Type1(例如为所述类型-1SL配置许可配置的参数sl-PSFCH-ToPUCCH-CG-Type1)进行配置。Optionally, for example for a Type-1 SL configuration license, the offset "k" can be configured via the parameter sl-PSFCH-ToPUCCH-CG-Type1 (e.g. the parameter sl-PSFCH- ToPUCCH-CG-Type1) to configure.
◆可选地，例如对类型-2SL配置许可，所述偏移量“k”的值可以是一个DCI格式(例如激活所述SL配置许可的DCI格式)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。Optionally, for example, for a type-2SL configuration license, the value of the offset "k" may be "PSFCH-to-HARQ feedback timing" in a DCI format (such as a DCI format that activates the SL configuration license). A value in the set configured by the parameter sl-PSFCH-ToPUCCH, indicated by the "indicator" field.
◆可选地，
Figure PCTCN2021109668-appb-000100
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。 ◆ Optionally,
Figure PCTCN2021109668-appb-000100
It is equal to the number of PSSCH transmissions that are allowed to be scheduled in the same period by the SL configuration.
◆可选地，
Figure PCTCN2021109668-appb-000101
是一个预定义的整数。例如
Figure PCTCN2021109668-appb-000102
可选地，此时，所述
Figure PCTCN2021109668-appb-000103
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。 ◆ Optionally,
Figure PCTCN2021109668-appb-000101
is a predefined integer. For example
Figure PCTCN2021109668-appb-000102
Optionally, at this time, the
Figure PCTCN2021109668-appb-000103
The PSSCH transmissions may be any one of the PSSCH transmissions that the SL configuration allows to be scheduled in the same period.
●可选地，所述UL传输可以是一个PUCCH传输。• Optionally, the UL transmission may be a PUCCH transmission.
●可选地，所述UL传输可以是一个PUSCH传输。• Optionally, the UL transmission may be a PUSCH transmission.
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码本中的一个或多个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。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"). One or more HARQ-ACK information bits in one HARQ-ACK codebook may be multiplexed on one PUCCH transmission, or multiplexed on one PUSCH transmission. In all embodiments and implementations of the present invention, unless otherwise specified, "HARQ-ACK codebook" refers to a HARQ-ACK codebook containing "HARQ-ACK information related to SL transmission reported on UL" .
UE可以配置为按类型-1(Type-1)HARQ-ACK码本(codebook)或者按类型-2(Type-2)HARQ-ACK码本报告HARQ-ACK信息。类型-1HARQ-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-2HARQ-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格式的个数等)，例如在两个不同的PUCCH时隙上传输的基于类型-2HARQ-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。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 (eg, configuration information of the RRC layer); the size of the Type-2 HARQ-ACK codebook may vary dynamically (eg, based on detected The number of DCI formats associated with the 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.
可选地，HARQ-ACK码本内的HARQ-ACK信息可以只和一个SL配置许可关联。Optionally, the HARQ-ACK information in the HARQ-ACK codebook may be associated with only one SL configuration grant.
可选地，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。Optionally, the HARQ-ACK information in the HARQ-ACK codebook may be associated with one or more SL configuration grants.
HARQ-ACK码本内的HARQ-ACK信息可以和一个或多个DCI格式(例如DCI格式3_0)关联。其中，所述一个或多个DCI格式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：The HARQ-ACK information within the HARQ-ACK codebook may be associated with one or more DCI formats (eg, DCI format 3_0). Wherein, each of the one or more DCI formats 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:
●调度PSCCH和/或PSSCH传输。此时，可选地，所述DCI格式的CRC使用SL-RNTI或SL-CS-RNTI加扰。• Schedule PSCCH and/or PSSCH transmissions. At this time, optionally, the CRC in the DCI format is scrambled using SL-RNTI or SL-CS-RNTI.
●指示SL配置许可(例如类型-2 SL配置许可)激活。- Indicates SL configuration license (eg Type-2 SL configuration license) activation.
●指示SL配置许可(例如类型-2 SL配置许可)释放。- Indicates the release of SL configuration licenses (eg Type-2 SL configuration licenses).
[实施例一][Example 1]
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。The following describes a method executed by a user equipment according to Embodiment 1 of the present invention with reference to FIG. 1 .
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。FIG. 1 is a flowchart illustrating a method performed by a user equipment according to Embodiment 1 of the present invention.
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。As shown in FIG. 1, in Embodiment 1 of the present invention, the steps performed by the user equipment UE include: step S101 and step S103.
具体地，在步骤S101，获取与SL时机集合M A有关的依赖信息。 Specifically, in step S101, the dependency information related to the SL occasion set MA is acquired.
可选地，所述SL时机可以是下面中的一项：Optionally, the SL opportunity may be one of the following:
●PSSCH传输时机。其中，● PSSCH transmission timing. in,
◆可选地，一个PSSCH传输时机可以用于一个“候选PSSCH 传输”，其中，◆ Optionally, one PSSCH transmission occasion may be used for one "candidate PSSCH transmission", where,
○可选地，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。o Optionally, a "candidate PSSCH transmission" may represent any actual PSSCH transmission at the corresponding PSSCH transmission occasion.
○可选地，一个“候选PSSCH传输”具有相应的PSFCH接收。o Optionally, a "candidate PSSCH transmission" has a corresponding PSFCH reception.
○可选地，一个“候选PSSCH传输”没有相应的PSFCH接收。o Optionally, a "candidate PSSCH transmission" has no corresponding PSFCH reception.
○可选地，一个“候选PSSCH传输”具有相应的PSFCH接收时机。o Optionally, one "candidate PSSCH transmission" has a corresponding PSFCH reception opportunity.
○可选地，一个“候选PSSCH传输”没有相应的PSFCH接收时机。o Optionally, a "candidate PSSCH transmission" has no corresponding PSFCH reception opportunity.
其中，in,
○可选地，所述PSFCH接收用于获取关于所述候选PSSCH传输的HARQ-ACK反馈。o Optionally, the PSFCH reception is used to obtain HARQ-ACK feedback on the candidate PSSCH transmission.
○可选地，所述PSFCH接收时机上的PSFCH接收用于获取关于所述候选PSSCH传输的HARQ-ACK反馈。o Optionally, the PSFCH reception on the PSFCH reception occasion is used to obtain HARQ-ACK feedback on the candidate PSSCH transmission.
●PSFCH接收时机。其中，● PSFCH reception timing. in,
◆可选地，一个PSFCH接收时机可以用于一个“候选PSFCH接收”，其中，◆ Optionally, one PSFCH reception opportunity may be used for one "candidate PSFCH reception", where,
○可选地，一个“候选PSFCH接收”可以表示在相应的PSFCH接收时机上的任意一个实际的PSFCH接收。o Optionally, a "candidate PSFCH reception" may represent any actual PSFCH reception at the corresponding PSFCH reception occasion.
○可选地，一个“候选PSFCH接收”具有相应的PSSCH传输。o Optionally, one "candidate PSFCH reception" has a corresponding PSSCH transmission.
○可选地，一个“候选PSFCH接收”没有相应的PSSCH传输。o Optionally, a "candidate PSFCH reception" has no corresponding PSSCH transmission.
○可选地，一个“候选PSFCH接收”具有相应的PSSCH传输时机。o Optionally, one "candidate PSFCH reception" has a corresponding PSSCH transmission opportunity.
○可选地，一个“候选PSFCH接收”没有相应的PSSCH传输时机。o Optionally, a "candidate PSFCH reception" has no corresponding PSSCH transmission opportunity.
其中，in,
○可选地，所述候选PSFCH接收用于获取关于所述PSSCH传输的HARQ-ACK反馈。o Optionally, the candidate PSFCH reception is used to obtain HARQ-ACK feedback on the PSSCH transmission.
○可选地，所述候选PSFCH接收用于获取关于所述PSSCH传输时机上的PSSCH传输的HARQ-ACK反馈。o Optionally, the candidate PSFCH reception is used to obtain HARQ-ACK feedback on PSSCH transmission on the PSSCH transmission occasion.
●PSSCH接收时机。其中，• PSSCH reception timing. in,
◆可选地，一个PSSCH接收时机可以用于一个“候选PSSCH接收”，其中，◆ Optionally, one PSSCH reception opportunity can be used for one "candidate PSSCH reception", where,
○可选地，一个“候选PSSCH接收”可以表示在相应的PSSCH接收时机上的任意一个实际的PSSCH接收。o Optionally, a "candidate PSSCH reception" may represent any actual PSSCH reception at the corresponding PSSCH reception occasion.
○可选地，一个“候选PSSCH接收”具有相应的PSFCH传输。o Optionally, a "candidate PSSCH reception" has a corresponding PSFCH transmission.
○可选地，一个“候选PSSCH接收”没有相应的PSFCH传输。o Optionally, a "candidate PSSCH reception" has no corresponding PSFCH transmission.
○可选地，一个“候选PSSCH接收”具有相应的PSFCH传输时机。o Optionally, one "candidate PSSCH reception" has a corresponding PSFCH transmission opportunity.
○可选地，一个“候选PSSCH接收”没有相应的PSFCH传输时机。o Optionally, a "candidate PSSCH reception" has no corresponding PSFCH transmission opportunity.
其中，in,
○可选地，所述PSFCH传输用于反馈关于所述候选PSSCH接收的HARQ-ACK信息。o Optionally, the PSFCH transmission is used to feed back HARQ-ACK information on the candidate PSSCH reception.
○可选地，所述PSFCH传输时机上的PSFCH传输用于反馈关于所述候选PSSCH接收的HARQ-ACK信息。o Optionally, the PSFCH transmission on the PSFCH transmission occasion is used to feed back HARQ-ACK information on the candidate PSSCH reception.
●PSFCH传输时机。其中，● PSFCH transmission timing. in,
◆可选地，一个PSFCH传输时机可以用于一个“候选PSFCH传输”，其中，◆ Optionally, one PSFCH transmission occasion may be used for one "candidate PSFCH transmission", where,
○可选地，一个“候选PSFCH传输”可以表示在相应的PSFCH传输时机上的任意一个实际的PSFCH传输。o Optionally, a "candidate PSFCH transmission" may represent any actual PSFCH transmission at the corresponding PSFCH transmission occasion.
○可选地，一个“候选PSFCH传输”具有相应的PSSCH 接收。o Optionally, a "candidate PSFCH transmission" has a corresponding PSSCH reception.
○可选地，一个“候选PSFCH传输”没有相应的PSSCH接收。o Optionally, a "candidate PSFCH transmission" has no corresponding PSSCH reception.
○可选地，一个“候选PSFCH传输”具有相应的PSSCH接收时机。o Optionally, one "candidate PSFCH transmission" has a corresponding PSSCH reception opportunity.
○可选地，一个“候选PSFCH传输”没有相应的PSSCH接收时机。o Optionally, a "candidate PSFCH transmission" has no corresponding PSSCH reception opportunity.
其中，in,
○可选地，所述候选PSFCH传输用于反馈关于所述PSSCH接收的HARQ-ACK信息。o Optionally, the candidate PSFCH transmission is used to feed back HARQ-ACK information on the PSSCH reception.
○可选地，所述候选PSFCH传输用于反馈关于所述PSSCH接收时机上的PSSCH接收的HARQ-ACK信息。o Optionally, the candidate PSFCH transmission is used to feed back HARQ-ACK information on PSSCH reception on the PSSCH reception occasion.
可选地，所述SL时机集合MA是一个有序集合。例如，所述SL时机集合M A的第一个元素(如果有的话)的索引为0，第二个元素(如果有的话)的索引为1，第三个元素(如果有的话)的索引为2，等等。相应地，可以通过所述SL时机集合M A中的一个元素的索引引用所述元素，例如，可以通过索引0，1，2，等等，分别引用所述SL时机集合M A的第一个元素(如果有的话)，第二个元素(如果有的话)，第三个元素(如果有的话)，等等。 Optionally, the SL occasion set MA is an ordered set. For example, the index of the first element (if any) of the SL occasion set MA is 0, the index of the second element (if any) is 1, and the index of the third element (if any) The index is 2, and so on. Correspondingly, an element in the SL occasion set MA can be referenced by an index of the element, for example, the first element of the SL occasion set MA can be referenced respectively through indices 0, 1 , 2, etc. element (if any), second element (if any), third element (if any), etc.
可选地，所述SL时机集合M A中的每一个SL时机对应一个SL时机索引。其中， Optionally, each SL occasion in the SL occasion set MA corresponds to an SL occasion index. in,
●可选地，所述SL时机集合M A中的每一个SL时机所对应的SL时机索引是唯一的(unique)，即所述SL时机集合M A中的SL时机所分别对应的SL时机索引各不相同。 Optionally, the SL occasion index corresponding to each SL occasion in the SL occasion set MA is unique, that is, the SL occasion indices corresponding to the SL occasions in the SL occasion set MA respectively vary.
●可选地，所述SL时机集合M A中的每一个SL时机所对应的SL时机索引的值可以是
Figure PCTCN2021109668-appb-000104
中的一个。 Optionally, the value of the SL occasion index corresponding to each SL occasion in the SL occasion set MA may be
Figure PCTCN2021109668-appb-000104
one of the.
●可选地，所述SL时机集合M A中的每一个元素是一个SL时机索 引。可选地，相应地，此时所述SL时机集合M A也可以称为“SL时机索引集合M A”。 • Optionally, each element in the SL occasion set MA is an SL occasion index. Optionally, correspondingly, the SL occasion set MA may also be referred to as "SL occasion index set MA " at this time.
●可选地，所述SL时机集合M A中的第一个元素，第二个元素，……，最后一个元素所对应的SL时机索引分别是
Figure PCTCN2021109668-appb-000105
Figure PCTCN2021109668-appb-000106
Optionally, the SL occasion indices corresponding to the first element, the second element, ... and the last element in the SL occasion set MA are respectively
Figure PCTCN2021109668-appb-000105
Figure PCTCN2021109668-appb-000106
可选地，所述SL时机集合M A中的每一个元素是一个时隙编号(例如相应的SL时机所在的时隙的编号)。 Optionally, each element in the SL opportunity set MA is a time slot number (eg, the number of the time slot where the corresponding SL opportunity is located).
可选地，所述SL时机集合M A对应复用在时隙n U内的一个UL传输上的HARQ-ACK信息。其中， Optionally, the SL occasion set MA corresponds to HARQ-ACK information multiplexed on one UL transmission in the time slot n U. in,
●可选地，所述SL时机集合M A中的每一个SL时机对应一个HARQ-ACK信息比特。例如，SL时机索引i对应HARQ-ACK信息比特
Figure PCTCN2021109668-appb-000107
● Optionally, each SL opportunity in the SL occasion set MA corresponds to one HARQ - ACK information bit. For example, the SL occasion index i corresponds to the HARQ-ACK information bit
Figure PCTCN2021109668-appb-000107
●可选地，所述UL传输是一个PUCCH传输。• Optionally, the UL transmission is a PUCCH transmission.
●可选地，所述UL传输是一个PUSCH传输。• Optionally, the UL transmission is a PUSCH transmission.
●可选地，所述SL时机集合M A对应类型-1HARQ-ACK码本。 ● Optionally, the SL occasion set MA corresponds to a type-1 HARQ-ACK codebook.
●可选地，所述SL时机集合M A对应类型-2HARQ-ACK码本。 ● Optionally, the SL occasion set MA corresponds to a type-2 HARQ-ACK codebook.
可选地，所述依赖信息包括：一个时隙定时值集合(a set of slot timing values)，例如记为K 1。其中， Optionally, the dependency information includes: a set of slot timing values, such as K 1 . in,
●可选地，所述集合K 1是一个有序集合。例如，所述集合K 1的第一个元素(如果有的话)的索引为0，第二个元素(如果有的话)的索引为1，第三个元素(如果有的话)的索引为2，等等。相应地，可以通过所述集合K 1中的一个元素的索引引用所述元素，例如，将所述集合K 1中索引为k的元素(或者所述元素的值)记为K 1，k。 • Optionally, the set K 1 is an ordered set. For example, the index of the first element (if any) of the set K 1 is 0, the index of the second element (if any) is 1, and the index of the third element (if any) is for 2, and so on. Correspondingly, an element in the set K 1 can be referenced by its index, for example, the element with the index k in the set K 1 (or the value of the element) is denoted as K 1,k .
●可选地，所述集合K 1可以由下面中的一项或多项确定： - Optionally, the set K 1 may be determined by one or more of the following:
◆参数sl-PSFCH-ToPUCCH-CG-Type1。◆Parameter sl-PSFCH-ToPUCCH-CG-Type1.
○例如，一个应用于所有已配置的类型-1SL配置许可的参数sl-PSFCH-ToPUCCH-CG-Type1所确定的时隙定时值(例如记为
Figure PCTCN2021109668-appb-000108
)。可选地，为所述UE配置的类型-1SL配置许可的个数为0，相应地，集合
Figure PCTCN2021109668-appb-000109
是一个空集。 o For example, a slot timing value (e.g. denoted as
Figure PCTCN2021109668-appb-000108
). Optionally, the number of Type-1SL configuration licenses configured for the UE is 0, and accordingly, the set
Figure PCTCN2021109668-appb-000109
is an empty set.
○又如，每一个已配置的类型-1SL配置许可所分别对应的参数sl-PSFCH-ToPUCCH-CG-Type1所确定的时隙定时值(例如分别记为
Figure PCTCN2021109668-appb-000110
其中
Figure PCTCN2021109668-appb-000111
是为所述UE配置的类型-1SL配置许可的个数)。可选地，
Figure PCTCN2021109668-appb-000112
可以等于0，相应地，集合
Figure PCTCN2021109668-appb-000113
是一个空集。 ○ Another example, the time slot timing value determined by the parameter sl-PSFCH-ToPUCCH-CG-Type1 corresponding to each configured Type-1SL configuration grant (for example, respectively denoted as
Figure PCTCN2021109668-appb-000110
in
Figure PCTCN2021109668-appb-000111
is the number of Type-1 SL configuration grants configured for the UE). Optionally,
Figure PCTCN2021109668-appb-000112
can be equal to 0, correspondingly, the set
Figure PCTCN2021109668-appb-000113
is an empty set.
◆参数sl-PSFCH-ToPUCCH所确定的时隙定时值集合(例如记为
Figure PCTCN2021109668-appb-000114
)。 ◆The set of time slot timing values determined by the parameter sl-PSFCH-ToPUCCH (for example, denoted as
Figure PCTCN2021109668-appb-000114
).
例如，K 1是集合
Figure PCTCN2021109668-appb-000115
和集合
Figure PCTCN2021109668-appb-000116
的并集。 For example, K1 is the set
Figure PCTCN2021109668-appb-000115
and collection
Figure PCTCN2021109668-appb-000116
union of .
又如，K 1是集合
Figure PCTCN2021109668-appb-000117
和集合
Figure PCTCN2021109668-appb-000118
的并集。 Another example, K1 is the set
Figure PCTCN2021109668-appb-000117
and collection
Figure PCTCN2021109668-appb-000118
union of .
又如，集合
Figure PCTCN2021109668-appb-000119
总是集合
Figure PCTCN2021109668-appb-000120
的一个子集。 Another example, collection
Figure PCTCN2021109668-appb-000119
always set
Figure PCTCN2021109668-appb-000120
A subset of.
此时，K 1总是等于集合
Figure PCTCN2021109668-appb-000121
At this point, K1 is always equal to the set
Figure PCTCN2021109668-appb-000121
又如，集合
Figure PCTCN2021109668-appb-000122
总是集合
Figure PCTCN2021109668-appb-000123
的一个子集。 Another example, collection
Figure PCTCN2021109668-appb-000122
always set
Figure PCTCN2021109668-appb-000123
A subset of.
此时，K 1总是等于集合
Figure PCTCN2021109668-appb-000124
At this point, K1 is always equal to the set
Figure PCTCN2021109668-appb-000124
又如，按其它方式确定K 1。 As another example, K 1 is determined in other ways.
可选地，所述依赖信息包括：与直行链路的SCS配置(例如记为μ SL)以 及上行链路的SCS配置(例如记为μ UL)有关的比值
Figure PCTCN2021109668-appb-000125
和/或
Figure PCTCN2021109668-appb-000126
其中， Optionally, the dependency information includes: a ratio related to the SCS configuration of the direct link (eg, denoted as μ SL ) and the SCS configuration of the uplink (eg, denoted as μ UL )
Figure PCTCN2021109668-appb-000125
and / or
Figure PCTCN2021109668-appb-000126
in,
●可选地，所述μ SL可以通过参数subcarrierSpacing进行配置，例如下面中的一项或多项(按“或”的方式任意组合)： Optionally, the μSL can be configured through the parameter subcarrierSpacing, such as one or more of the following (any combination in an "or" manner):
◆sl-BWP-ToAddModList中的sl-BWP-Generic中的sl-BWP中的subcarrierSpacing。◆ subcarrierSpacing in sl-BWP in sl-BWP-Generic in sl-BWP-ToAddModList.
◆sl-BWP-List中的sl-BWP-Generic中的sl-BWP中的subcarrierSpacing。◆ subcarrierSpacing in sl-BWP in sl-BWP-Generic in sl-BWP-List.
◆sl-BWP-Generic中的sl-BWP中的subcarrierSpacing。◆ subcarrierSpacing in sl-BWP in sl-BWP-Generic.
◆sl-BWP中的subcarrierSpacing。◆ subcarrierSpacing in sl-BWP.
◆SL-BWP-Config中的SL-BWP-Generic中的BWP中的subcarrierSpacing。◆ subcarrierSpacing in BWP in SL-BWP-Generic in SL-BWP-Config.
◆SL-BWP-Config中的subcarrierSpacing。◆ subcarrierSpacing in SL-BWP-Config.
◆SL-BWP-Generic中的subcarrierSpacing。◆ subcarrierSpacing in SL-BWP-Generic.
◆SL-BWP-ConfigCommon中的SL-BWP-Generic中的BWP中的subcarrierSpacing。◆ subcarrierSpacing in BWP in SL-BWP-Generic in SL-BWP-ConfigCommon.
◆SL-BWP-ConfigCommon中的subcarrierSpacing。◆ subcarrierSpacing in SL-BWP-ConfigCommon.
◆BWP-Sidelink中的subcarrierSpacing。◆ subcarrierSpacing in BWP-Sidelink.
●可选地，所述μ UL可以通过参数subcarrierSpacing进行配置，例如下面中的一项或多项(按“或”的方式任意组合)： Optionally, the μ UL can be configured through the parameter subcarrierSpacing, such as one or more of the following (any combination in an "or" manner):
◆initialUplinkBWP中的genericParameters中的subcarrierSpacing。◆ subcarrierSpacing in genericParameters in initialUplinkBWP.
◆initialUplinkBWP中的subcarrierSpacing。◆ subcarrierSpacing in initialUplinkBWP.
◆uplinkBWP-ToAddModList中的bwp-Common中的 genericParameters中的subcarrierSpacing。◆ subcarrierSpacing in genericParameters in bwp-Common in uplinkBWP-ToAddModList.
◆uplinkBWP-ToAddModList中的subcarrierSpacing。◆ subcarrierSpacing in uplinkBWP-ToAddModList.
◆bwp-Common中的genericParameters中的subcarrierSpacing。◆ subcarrierSpacing in genericParameters in bwp-Common.
◆bwp-Common中的subcarrierSpacing。◆ subcarrierSpacing in bwp-Common.
◆BWP-Uplink中的BWP-UplinkCommon中的BWP中的subcarrierSpacing。◆ subcarrierSpacing in BWP in BWP-Uplink-UplinkCommon in BWP.
◆BWP-Uplink中的subcarrierSpacing。◆ subcarrierSpacing in BWP-Uplink.
◆BWP-UplinkCommon中的subcarrierSpacing。◆ subcarrierSpacing in BWP-UplinkCommon.
可选地，所述依赖信息包括：为所述UE配置的一个或多个(例如记为N RP个)资源池(例如分别记为
Figure PCTCN2021109668-appb-000127
)的相关参数的集合。例如，所述N RP个资源池分别对应的位图(例如通过相应的资源池的参数sl-TimeResource进行配置)形成的集合，例如记为
Figure PCTCN2021109668-appb-000128
又如，所述N RP个资源池分别对应的PSFCH资源的周期(或者称为PSFCH传输时机资源的周期，例如通过相应的资源池的参数sl-PSFCH-Period进行配置)形成的集合，例如记为
Figure PCTCN2021109668-appb-000129
其中， Optionally, the dependency information includes: one or more (for example, marked as N RP ) resource pools configured for the UE (for example, marked as
Figure PCTCN2021109668-appb-000127
) is a collection of related parameters. For example, the set formed by the corresponding bitmaps of the N RP resource pools (for example, configured by the parameter sl-TimeResource of the corresponding resource pool), for example, is denoted as
Figure PCTCN2021109668-appb-000128
For another example, the period of the PSFCH resources corresponding to the N RP resource pools respectively (or referred to as the period of the PSFCH transmission opportunity resource, for example, configured by the parameter s1-PSFCH-Period of the corresponding resource pool) is formed. for
Figure PCTCN2021109668-appb-000129
in,
●可选地，所述N RP个资源池是为所述UE配置的N RP个资源池。 ● Optionally, the N RP resource pools are N RP resource pools configured for the UE.
●可选地，所述N RP个资源池只包括传输资源池(TX resource pool，或者传输池，TX pool)。 ● Optionally, the N RP resource pools only include a transmission resource pool (TX resource pool, or transmission pool, TX pool).
●可选地，所述N RP个资源池只包括接收资源池(RX resource pool，或者接收池，RX pool)。 ● Optionally, the N RP resource pools only include a receiving resource pool (RX resource pool, or receiving pool, RX pool).
●可选地，所述N RP个资源池包括传输资源池和接收资源池。 ● Optionally, the N RP resource pools include a transmission resource pool and a reception resource pool.
●可选地，所述N RP个资源池只包括为直行资源分配模式1配置的资源池。 ● Optionally, the N RP resource pools only include resource pools configured for direct resource allocation mode 1 .
●可选地，所述N RP个资源池只包括为直行资源分配模式2配置的 资源池。 ● Optionally, the N RP resource pools only include resource pools configured for direct resource allocation mode 2 .
●可选地，所述N RP个资源池包括为直行资源分配模式1配置的资源池和为直行资源分配模式2配置的资源池。 ● Optionally, the N RP resource pools include a resource pool configured for direct resource allocation mode 1 and a resource pool configured for direct resource allocation mode 2.
●可选地，所述N RP个资源池是通过参数si-TxPoolScheduling配置的资源池的部分或全部。例如，所述N RP个资源池仅包括所述参数sl-TxPoolScheduling配置的资源池中具有非0的PSFCH资源周期的资源池。 ● Optionally, the N RP resource pools are part or all of the resource pools configured through the parameter si-TxPoolScheduling. For example, the N RP resource pools only include resource pools with a non-zero PSFCH resource period in the resource pools configured by the parameter sl-TxPoolScheduling.
●可选地，所述N RP个资源池是通过参数si-TxPoolScheduling配置的所有资源池。 ● Optionally, the N RP resource pools are all resource pools configured through the parameter si-TxPoolScheduling.
此外，在步骤S103，基于所述依赖信息，和/或其他信息，确定所述SL时机集合M A。 In addition, in step S103, the SL occasion set MA is determined based on the dependency information, and/or other information.
可选地，所述“确定所述SL时机集合M A”包括：初始化。例如，执行下面中的一项或多项： Optionally, the "determining the SL occasion set MA " includes: initialization. For example, do one or more of the following:
●将下一个要分配的SL时机索引(例如记为j)初始化为0。• Initialize the next SL opportunity index to be allocated (denoted as j, for example) to 0.
●将所述SL时机集合M A初始化为一个空集(例如记为
Figure PCTCN2021109668-appb-000130
)。 ● Initialize the set of SL occasions MA as an empty set (eg denoted as
Figure PCTCN2021109668-appb-000130
).
可选地，所述“确定所述SL时机集合M A”包括：确定满足第一SL参考时隙条件的所有时隙(称为SL参考时隙)组成的集合
Figure PCTCN2021109668-appb-000131
其中，
Figure PCTCN2021109668-appb-000132
可选地，所述集合又可以写为
Figure PCTCN2021109668-appb-000133
可选地，所述第一SL参考时隙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)： Optionally, the "determining the set of SL occasions MA " includes: determining a set composed of all time slots (referred to as SL reference time slots) that satisfy the conditions of the first SL reference time slot
Figure PCTCN2021109668-appb-000131
in,
Figure PCTCN2021109668-appb-000132
Alternatively, the set can be written as
Figure PCTCN2021109668-appb-000133
Optionally, the first SL reference time slot condition includes one or more of the following (in any combination of "and" or "or" where applicable):
●
Figure PCTCN2021109668-appb-000134
 ●
Figure PCTCN2021109668-appb-000135
●
Figure PCTCN2021109668-appb-000134
●
Figure PCTCN2021109668-appb-000135
●
Figure PCTCN2021109668-appb-000136
●
Figure PCTCN2021109668-appb-000136
●不满足第一BWP更改条件。其中，● The first BWP change condition is not satisfied. in,
◆可选地，所述第一BWP更改条件是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)：◆Optionally, the first BWP modification condition is one or more of the following (in any combination of "and" or "or" where applicable):
○时隙n U的起始时间与时隙
Figure PCTCN2021109668-appb-000137
相同。 ○Start time and time slot of time slot n U
Figure PCTCN2021109668-appb-000137
same.
○时隙n U的起始时间在时隙
Figure PCTCN2021109668-appb-000138
之后。 ○ The start time of time slot n U is in the time slot
Figure PCTCN2021109668-appb-000138
after.
○时隙
Figure PCTCN2021109668-appb-000139
在时隙
Figure PCTCN2021109668-appb-000140
之前。 ○ time slot
Figure PCTCN2021109668-appb-000139
in time slot
Figure PCTCN2021109668-appb-000140
Before.
○时隙n U的起始时间在时隙
Figure PCTCN2021109668-appb-000141
之前。 ○ The start time of time slot n U is in the time slot
Figure PCTCN2021109668-appb-000141
Before.
○时隙n U的结束时间与时隙
Figure PCTCN2021109668-appb-000142
相同。 ○ End time and time slot of time slot n U
Figure PCTCN2021109668-appb-000142
same.
○时隙n U的结束时间在时隙
Figure PCTCN2021109668-appb-000143
之后。 ○ The end time of time slot n U is in the time slot
Figure PCTCN2021109668-appb-000143
after.
○时隙n U的结束时间在时隙
Figure PCTCN2021109668-appb-000144
之前。 ○ The end time of time slot n U is in the time slot
Figure PCTCN2021109668-appb-000144
Before.
○时隙
Figure PCTCN2021109668-appb-000145
在时隙
Figure PCTCN2021109668-appb-000146
之后。 ○ time slot
Figure PCTCN2021109668-appb-000145
in time slot
Figure PCTCN2021109668-appb-000146
after.
○时隙
Figure PCTCN2021109668-appb-000147
与时隙
Figure PCTCN2021109668-appb-000148
相同。 ○ time slot
Figure PCTCN2021109668-appb-000147
with time slot
Figure PCTCN2021109668-appb-000148
same.
○时隙
Figure PCTCN2021109668-appb-000149
的起始时间与时隙
Figure PCTCN2021109668-appb-000150
相同。 ○ time slot
Figure PCTCN2021109668-appb-000149
start time and time slot of
Figure PCTCN2021109668-appb-000150
same.
○时隙
Figure PCTCN2021109668-appb-000151
的起始时间在时隙
Figure PCTCN2021109668-appb-000152
之后。 ○ time slot
Figure PCTCN2021109668-appb-000151
The start time of the time slot
Figure PCTCN2021109668-appb-000152
after.
○时隙
Figure PCTCN2021109668-appb-000153
的起始时间在时隙
Figure PCTCN2021109668-appb-000154
之前。 ○ time slot
Figure PCTCN2021109668-appb-000153
The start time of the time slot
Figure PCTCN2021109668-appb-000154
Before.
○时隙
Figure PCTCN2021109668-appb-000155
的结束时间与时隙
Figure PCTCN2021109668-appb-000156
相同。 ○ time slot
Figure PCTCN2021109668-appb-000155
end time and time slot of
Figure PCTCN2021109668-appb-000156
same.
○时隙
Figure PCTCN2021109668-appb-000157
的结束时间在时隙
Figure PCTCN2021109668-appb-000158
之后。 ○ time slot
Figure PCTCN2021109668-appb-000157
The end time is in the slot
Figure PCTCN2021109668-appb-000158
after.
○时隙
Figure PCTCN2021109668-appb-000159
的结束时间在时隙
Figure PCTCN2021109668-appb-000160
之前。 ○ time slot
Figure PCTCN2021109668-appb-000159
The end time is in the slot
Figure PCTCN2021109668-appb-000160
Before.
◆其中，可选地，所述时隙
Figure PCTCN2021109668-appb-000161
是一个用于(或者说发生)活跃UL BWP更改(active UL BWP change)的时隙。其中， ◆ wherein, optionally, the time slot
Figure PCTCN2021109668-appb-000161
is a time slot for (or in other words to occur) an active UL BWP change. in,
○可选地，所述活跃UL BWP更改发生在PCell上。o Optionally, the active UL BWP change occurs on the PCell.
○可选地，所述活跃UL BWP更改发生在传输所述SL时机集合M A对应的HARQ-ACK信息的小区上。 o Optionally, the active UL BWP change occurs on the cell that transmits the HARQ - ACK information corresponding to the SL occasion set MA.
○可选地，所述活跃UL BWP更改发生在本发明的实施 例一中相应的SL和/或UL配置信息所对应的小区上。o Optionally, the active UL BWP change occurs on the cell corresponding to the corresponding SL and/or UL configuration information in Embodiment 1 of the present invention.
○可选地，所述活跃UL BWP更改发生在任意一个服务小区上。o Optionally, the active UL BWP change occurs on any serving cell.
○可选地，可以按其它方式确定所述活跃UL BWP更改发生的小区。o Optionally, the cell where the active UL BWP change occurs may be determined in other ways.
例如，所述“确定满足第一SL参考时隙条件的所有时隙组成的集合
Figure PCTCN2021109668-appb-000162
”的过程可以用伪代码示意如下： For example, the "determine the set of all time slots that satisfy the conditions of the first SL reference time slot"
Figure PCTCN2021109668-appb-000162
” process can be illustrated in pseudocode as follows:
Figure PCTCN2021109668-appb-000163
Figure PCTCN2021109668-appb-000163
可选地，所述“确定所述SL时机集合M A”包括：对每一个SL参考时隙
Figure PCTCN2021109668-appb-000164
确定
Figure PCTCN2021109668-appb-000165
个SL时机，并将所述
Figure PCTCN2021109668-appb-000166
个SL时机(或其 分别对应的SL时机索引)添加到所述SL时机集合M A。其中， Optionally, the "determining the set of SL occasions MA " includes: referring to a time slot for each SL
Figure PCTCN2021109668-appb-000164
Sure
Figure PCTCN2021109668-appb-000165
SL opportunity, and the
Figure PCTCN2021109668-appb-000166
SL occasions (or their respective corresponding SL occasion indices) are added to the set of SL occasions MA . in,
●可选地，根据参考资源池集合{RP ref}确定所述
Figure PCTCN2021109668-appb-000167
个SL时机。其中，所述参考资源池集合{RP ref}由所述N RP个资源池中满足第一资源池条件的所有资源池组成。其中， Optionally, determine the reference resource pool set {RP ref }
Figure PCTCN2021109668-appb-000167
SL time. Wherein, the reference resource pool set {RP ref } is composed of all resource pools that satisfy the conditions of the first resource pool in the N RP resource pools. in,
◆可选地，所述第一资源池条件可以是“无条件”，即所述第一资源池条件总是可以满足。◆ Optionally, the first resource pool condition may be "unconditional", that is, the first resource pool condition can always be satisfied.
◆可选地，所述第一资源池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)：◆Optionally, the first resource pool condition includes one or more of the following (in any combination of "and" or "or" where applicable):
○所述SL参考时隙
Figure PCTCN2021109668-appb-000168
属于资源池RP ref。其中， ○ The SL reference slot
Figure PCTCN2021109668-appb-000168
Belongs to the resource pool RP ref . in,
◇可选地，根据为所述资源池RP ref配置的资源池位图(例如通过参数sl-TimeResource进行配置)，和/或TDD配置信息(例如通过参数tdd-UL-DL-ConfigurationCommon进行配置)，和/或其他信息，确定所述SL参考时隙
Figure PCTCN2021109668-appb-000169
是否属于所述资源池RP ref。 ◇Optionally, according to the resource pool bitmap configured for the resource pool RP ref (for example, through the parameter sl-TimeResource), and/or TDD configuration information (for example, through the parameter tdd-UL-DL-ConfigurationCommon) , and/or other information that determines the SL reference slot
Figure PCTCN2021109668-appb-000169
Whether it belongs to the resource pool RP ref .
○所述SL参考时隙
Figure PCTCN2021109668-appb-000170
是所述资源池RP ref的一个PSFCH时隙。其中， ○ The SL reference slot
Figure PCTCN2021109668-appb-000170
is a PSFCH slot of the resource pool RP ref . in,
◇可选地，根据为所述资源池RP ref配置的PSFCH周期信息(例如通过参数sl-PSFCH-Period进行配置)等确定所述资源池RP ref中的所述SL参考时隙
Figure PCTCN2021109668-appb-000171
是否包含PSFCH资源(或者说所述SL参考时隙
Figure PCTCN2021109668-appb-000172
是否包含所述资源池RP ref中的PSFCH资源)。 ◇Optionally, determine the SL reference time slot in the resource pool RP ref according to the PSFCH period information configured for the resource pool RP ref (for example, configured through the parameter sl-PSFCH-Period), etc.
Figure PCTCN2021109668-appb-000171
Whether to include PSFCH resources (or the SL reference slot
Figure PCTCN2021109668-appb-000172
Whether to include the PSFCH resource in the resource pool RP ref ).
◇可选地，“所述SL参考时隙
Figure PCTCN2021109668-appb-000173
是所述资源池 RP ref的一个PSFCH时隙”也可以表述为“所述 ◇ Optionally, "the SL reference slot
Figure PCTCN2021109668-appb-000173
is a PSFCH slot of the resource pool RP ref " can also be expressed as "the
SL参考时隙
Figure PCTCN2021109668-appb-000174
包含(或者说配置了)所述资源池RP ref的PSFCH资源”，或者，表述为“所述资源池RP ref中的所述SL参考时隙
Figure PCTCN2021109668-appb-000175
包含(或者说配置了)PSFCH资源”，或者，在上下文清楚的情况下，表述为“所述SL参考时隙
Figure PCTCN2021109668-appb-000176
包含(或者说配置了)PSFCH资源”。 SL reference slot
Figure PCTCN2021109668-appb-000174
Contains (or is configured with) the PSFCH resource of the resource pool RP ref ", or, expressed as "the SL reference slot in the resource pool RP ref
Figure PCTCN2021109668-appb-000175
contains (or is configured with) PSFCH resources", or, where the context is clear, expressed as "the SL reference slot
Figure PCTCN2021109668-appb-000176
Contains (or is configured with) PSFCH resources".
◆可选地，若没有资源池满足所述第一资源池条件，则所述参考资源池集合{RP ref}为空集。 ◆ Optionally, if no resource pool satisfies the first resource pool condition, the reference resource pool set {RP ref } is an empty set.
◆可选地，所述
Figure PCTCN2021109668-appb-000177
等于下面中的一项： ◆ Optionally, the
Figure PCTCN2021109668-appb-000177
is equal to one of the following:
○所述参考资源池集合{RP ref}中的所有参考资源池所配置的PSFCH周期的最大值。 ○ The maximum value of the PSFCH period configured by all reference resource pools in the reference resource pool set {RP ref }.
○所述参考资源池集合{RP ref}中的所有参考资源池所配置的PSFCH周期之和。 ○ The sum of the PSFCH periods configured by all reference resource pools in the reference resource pool set {RP ref }.
○所述SL参考时隙
Figure PCTCN2021109668-appb-000178
在所述参考资源池集合{RP ref}中的每一个参考资源池中对应的PSSCH时隙的并集的基数。 ○ The SL reference slot
Figure PCTCN2021109668-appb-000178
The cardinality of the union of the corresponding PSSCH time slots in each reference resource pool in the reference resource pool set {RP ref }.
◇例如，若所述参考资源池集合{RP ref}中有两个资源池：RP 0和RP 1，所述SL参考时隙
Figure PCTCN2021109668-appb-000179
(作为一个PSFCH时隙)在资源池RP 0关联
Figure PCTCN2021109668-appb-000180
个PSSCH时隙，在资源池RP 1关联
Figure PCTCN2021109668-appb-000181
个PSSCH时隙，且所述
Figure PCTCN2021109668-appb-000182
个PSSCH时隙和所述
Figure PCTCN2021109668-appb-000183
个PSSCH时隙中有2个时隙重合，则 ◇For example, if there are two resource pools in the reference resource pool set {RP ref }: RP 0 and RP 1 , the SL refers to the time slot
Figure PCTCN2021109668-appb-000179
(as a PSFCH slot) associated in resource pool RP 0
Figure PCTCN2021109668-appb-000180
PSSCH slots, associated in resource pool RP 1
Figure PCTCN2021109668-appb-000181
PSSCH slots, and the
Figure PCTCN2021109668-appb-000182
PSSCH slots and the
Figure PCTCN2021109668-appb-000183
2 of the PSSCH time slots overlap, then
Figure PCTCN2021109668-appb-000184
Figure PCTCN2021109668-appb-000184
例如，在上述示意“确定满足第一SL参考时隙条件的所有时隙组成的集合
Figure PCTCN2021109668-appb-000185
”的伪代码中的“[执行基于SL参考时隙
Figure PCTCN2021109668-appb-000186
的操作]”包括“确定
Figure PCTCN2021109668-appb-000187
个SL时机”以及“将所述
Figure PCTCN2021109668-appb-000188
个SL时机(或其分别对应的SL时机索引)添加到所述SL时机集合M A”，其中， For example, in the above illustration "Determine the set of all time slots that meet the conditions of the first SL reference time slot
Figure PCTCN2021109668-appb-000185
"The pseudocode of "[Perform SL reference slot based on
Figure PCTCN2021109668-appb-000186
action]" including "OK
Figure PCTCN2021109668-appb-000187
SL opportunities" and "will describe
Figure PCTCN2021109668-appb-000188
SL occasions (or their respective corresponding SL occasion indices) are added to the set of SL occasions MA ″, where,
“确定
Figure PCTCN2021109668-appb-000189
个SL时机”可以用伪代码示意如下： "Sure
Figure PCTCN2021109668-appb-000189
SL timing" can be represented in pseudocode as follows:
Figure PCTCN2021109668-appb-000190
Figure PCTCN2021109668-appb-000190
或者，“确定
Figure PCTCN2021109668-appb-000191
个SL时机”可以用伪代码示意如下： Or, "OK
Figure PCTCN2021109668-appb-000191
SL timing" can be represented in pseudocode as follows:
Figure PCTCN2021109668-appb-000192
Figure PCTCN2021109668-appb-000192
“将所述
Figure PCTCN2021109668-appb-000193
个SL时机(或其分别对应的SL时机索引)添加到所述SL时机集合M A”可以用伪代码示意如下(其中M A＝M A∪j又可 以替换为M A＝M A∪{j})： "The said
Figure PCTCN2021109668-appb-000193
The addition of SL occasions (or their corresponding SL occasion indices) to the set of SL occasions M A " can be illustrated in pseudocode as follows (where MA = MA ∪j can be replaced by MA = MA ∪{j }):
Figure PCTCN2021109668-appb-000194
Figure PCTCN2021109668-appb-000194
可选地，在本发明的实施例一中，如未特别说明，所述SL时机集合M A指的是“最终确定的SL时机集合M A”。例如，在本发明的实施例一的步骤S101中提到的“SL时机集合M A”，指的是执行本发明的实施例一的步骤S103后最终确定的SL时机集合M A。作为对比，在本发明的实施例一的步骤S103中，在确定所述SL时机集合M A的过程对所述SL时机集合M A的初始化、添加元素等操作，可以认为应用于一个临时的(interim)SL时机集合M A上。 Optionally, in Embodiment 1 of the present invention, unless otherwise specified, the SL occasion set MA refers to the "finally determined SL occasion set MA ". For example, the "SL occasion set MA " mentioned in step S101 of the first embodiment of the present invention refers to the SL occasion set MA finally determined after step S103 of the first embodiment of the present invention is executed. By contrast, in step S103 of the first embodiment of the present invention, in the process of determining the SL occasion set MA , the initialization and element addition of the SL occasion set MA can be considered to be applied to a temporary ( interim) SL opportunity set MA .
可选地，在本发明的实施例一中，“mod”是求余运算，或者说求余函数，或者说取模运算，或者说取模函数。Optionally, in Embodiment 1 of the present invention, "mod" is a remainder operation, or a remainder function, or a modulo operation, or a modulo function.
可选地，在本发明的实施例一中，“max”是求最大值运算，或者说求最大值函数。Optionally, in Embodiment 1 of the present invention, "max" is an operation for obtaining a maximum value, or a function for obtaining a maximum value.
可选地，在本发明的实施例一中，所述“确定
Figure PCTCN2021109668-appb-000195
个SL时机”又可以称为“确定
Figure PCTCN2021109668-appb-000196
个SL时机索引”。 Optionally, in Embodiment 1 of the present invention, the "determining
Figure PCTCN2021109668-appb-000195
SL timing" can also be called "determined
Figure PCTCN2021109668-appb-000196
SL Timing Index".
可选地，在本发明的实施例一中，所述“确定
Figure PCTCN2021109668-appb-000197
个SL时机”又可以称为“生成
Figure PCTCN2021109668-appb-000198
个SL时机”。 Optionally, in Embodiment 1 of the present invention, the "determine
Figure PCTCN2021109668-appb-000197
SL opportunities" can also be called "generating
Figure PCTCN2021109668-appb-000198
an SL time".
可选地，在本发明的实施例一中，所述“确定
Figure PCTCN2021109668-appb-000199
个SL时机”又可以称为“生成
Figure PCTCN2021109668-appb-000200
个SL时机索引”。 Optionally, in Embodiment 1 of the present invention, the "determining
Figure PCTCN2021109668-appb-000199
SL opportunities" can also be called "generating
Figure PCTCN2021109668-appb-000200
SL Timing Index".
可选地，在本发明的实施例一中，一个SL时机的索引也可以称为所述SL时机的编号。Optionally, in Embodiment 1 of the present invention, the index of an SL opportunity may also be referred to as the number of the SL opportunity.
可选地，在本发明的实施例一中，参数sl-PSFCH-ToPUCCH可以替换为参数sl-FeedbackToUL-ACK。Optionally, in Embodiment 1 of the present invention, the parameter sl-PSFCH-ToPUCCH may be replaced with the parameter sl-FeedbackToUL-ACK.
可选地，在本发明的实施例一中，参数sl-PSFCH-ToPUCCH-CG-Type1可以替换为参数sl-ACKToUL-ACK。Optionally, in Embodiment 1 of the present invention, the parameter sl-PSFCH-ToPUCCH-CG-Type1 may be replaced with the parameter sl-ACKToUL-ACK.
可选地，在本发明的实施例一中，所述“PSSCH传输”可以替换为“PSCCH和/或PSSCH传输”。Optionally, in Embodiment 1 of the present invention, the "PSSCH transmission" may be replaced with "PSCCH and/or PSSCH transmission".
可选地，本发明的实施例一可以应用于一个服务小区(例如PCell，又如PSCell，又如SpCell，又如SCell，又如其他服务小区)中的一个SL BWP。Optionally, Embodiment 1 of the present invention may be applied to an SL BWP in a serving cell (for example, PCell, or PSCell, or SpCell, or SCell, or other serving cells).
可选地，本发明的实施例一可以应用于一个服务小区(例如PCell，又如PSCell，又如SpCell，又如SCell，又如其他服务小区)中的一个UL BWP(例如活跃UL BWP，active UL BWP)。Optionally, Embodiment 1 of the present invention may be applied to a UL BWP (such as an active UL BWP, active UL BWP, active UL BWP).
这样，根据实施例一所述，本发明提供了一种方法，在生成HARQ-ACK码本(例如半静态的HARQ-ACK码本)时，遍历所有已配置的资源池的配置信息以确定一个或多个以同一个SL参考时隙为PSFCH时隙的资源池，并根据相应的一个或多个PSFCH周期确定需要生成的SL时机(如PSSCH传输时机)个数，避免了在配置了多个资源池的情况下HARQ-ACK码本的大小无法容纳所有可能的实际的PSSCH传输所对应的HARQ-ACK比特等问题。In this way, according to the first embodiment, the present invention provides a method, when generating a HARQ-ACK codebook (for example, a semi-static HARQ-ACK codebook), traverse the configuration information of all configured resource pools to determine a or multiple resource pools that use the same SL reference time slot as the PSFCH time slot, and determine the number of SL opportunities (such as PSSCH transmission opportunities) that need to be generated according to the corresponding one or more PSFCH cycles, avoiding the need to configure multiple In the case of a resource pool, the size of the HARQ-ACK codebook cannot accommodate all possible HARQ-ACK bits corresponding to actual PSSCH transmissions.
[变形例][Variation]
下面，利用图2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。In the following, FIG. 2 is used to describe a user equipment that can execute the method performed by the user equipment described in detail above in the present invention as a modification.
图2是表示本发明所涉及的用户设备UE的框图。FIG. 2 is a block diagram showing a user equipment UE according to the present invention.
如图2所示，该用户设备UE20包括处理器201和存储器202。处理器201例如可以包括微处理器、微控制器、嵌入式处理器等。存储器202 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202上存储有程序指令。该指令在由处理器201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。As shown in FIG. 2 , the user equipment UE20 includes a processor 201 and a memory 202 . The processor 201 may include, for example, a microprocessor, a microcontroller, an embedded processor, or the like. The memory 202 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, and the like. Program instructions are stored on the memory 202 . When the instruction is executed by the processor 201, the above method described in detail in the present invention and executed by the user equipment can be executed.
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。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. Numerous changes and modifications may occur to those skilled in the art in light of the teachings of the illustrated embodiments. Those skilled in the art should understand that some or all of mathematical expressions, mathematical equations or mathematical inequalities may be simplified or transformed or rewritten to a certain extent, such as combining constant terms, or exchanging two addition terms, or exchanging two multiplicative terms, such as moving a term from the left to the right of an equation or inequality after changing its sign, or moving a term from the right to the left of an equation or inequality after changing its sign, etc.; simplification Either the mathematical expressions or mathematical equations or mathematical inequalities before and after the transformation or rewriting can be considered equivalent.
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。It should be understood that the above-described embodiments of the present invention may be implemented by software, hardware, or a combination of both. For example, 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.
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。In the present invention, 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.
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。Furthermore, embodiments of the invention disclosed herein may be implemented on a computer program product. More specifically, 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. 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.
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。In addition, 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. In addition, when an advanced technology that can replace the current integrated circuit appears due to the advancement of semiconductor technology, the present invention can also use the integrated circuit obtained by using the advanced technology.
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。Although the present invention has been shown in conjunction with the preferred embodiments thereof, those skilled in the art will appreciate that various modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention. Therefore, the present invention should not be limited by the above-described embodiments, but should be defined by the appended claims and their equivalents.

Claims (4)

  1. 一种由用户设备UE执行的方法，其特征在于包括：A method performed by a user equipment UE, comprising:
    根据一个满足从PSFCH到PUCCH的HARQ-ACK定时配置的SL参考时隙，确定一个满足第一资源池条件的所有资源池组成的集合，以及according to an SL reference slot that satisfies the HARQ-ACK timing configuration from the PSFCH to the PUCCH, determining a set of all resource pools that satisfy the first resource pool condition, and
    根据所述资源池集合确定
    Figure PCTCN2021109668-appb-100001
    个PSSCH传输时机，以及     Determined according to the resource pool set
    Figure PCTCN2021109668-appb-100001
    PSSCH transmission occasions, and
    将所述
    Figure PCTCN2021109668-appb-100002
    个PSSCH传输时机分别对应的索引添加到一个PSSCH传输时机集合。     will be described
    Figure PCTCN2021109668-appb-100002
    The indices corresponding to the PSSCH transmission occasions are added to a PSSCH transmission occasion set.
  2. 根据权利要求1所述的方法，其特征在于，The method of claim 1, wherein:
    若所述SL参考时隙属于资源池RP ref，并且 if the SL reference slot belongs to the resource pool RP ref , and
    所述SL参考时隙包含所述资源池RP ref的PSFCH资源，则 The SL reference slot includes the PSFCH resource of the resource pool RP ref , then
    所述资源池RP ref满足所述第一资源池条件。 The resource pool RP ref satisfies the first resource pool condition.
  3. 根据权利要求1所述的方法，其特征在于，The method of claim 1, wherein:
    所述
    Figure PCTCN2021109668-appb-100003
    的值等于所述资源池集合中的所有资源池所配置的PSFCH周期的最大值。     said
    Figure PCTCN2021109668-appb-100003
    The value of is equal to the maximum value of the PSFCH period configured for all resource pools in the resource pool set.
  4. 一种用户设备，包括：A user equipment comprising:
    处理器；以及processor; and
    存储器，存储有指令，memory, storing instructions,
    其中，所述指令在由所述处理器运行时执行根据权利要求1-3中的任一项所述的方法。wherein the instructions, when executed by the processor, perform the method of any of claims 1-3.
PCT/CN2021/109668 2020-08-06 2021-07-30 Method executed by user equipment and user equipment WO2022028328A1 (en)

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