CN114070489A

CN114070489A - Method performed by user equipment and user equipment

Info

Publication number: CN114070489A
Application number: CN202010786240.4A
Authority: CN
Inventors: 罗超; 刘仁茂; 赵毅男; 野上智造
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2022-02-18
Also published as: WO2022028328A1

Abstract

According to the present invention, a method performed by a user equipment and a user equipment are presented, wherein the method performed by the user equipment comprises: determining a set of all resource pools satisfying a first resource pool condition according to a SL reference time slot satisfying HARQ-ACK timing configuration from PSFCH to PUCCH, and determining according to the resource pool set

A PSSCH transmission opportunity, and transmitting the same

Indexes corresponding to the PSSCH transmission occasions are added to a PSSCH transmission occasion set.

Description

Method performed by user equipment and user equipment

Technical Field

The present invention relates to a method performed by a user equipment and a user equipment.

Background

In 5G V2X (see non-patent document 4), the network side (e.g., a base station, etc.) can allocate one or more pschs transmission resources to a UE by configuring and/or activating an "SL configuration grant" for the UE, or by DCI. In addition, the network side (e.g., base station, etc.) may provide uplink resources (e.g., PUCCH resources, such as PUSCH resources) for the UE to report HARQ-ACK information related to the psch transmission. In the mechanism for reporting the HARQ-ACK information, the problem to be solved includes that the HARQ-ACK codebook corresponding to the reported HARQ-ACK information can be correctly generated in various system configuration combinations.

Prior art documents

Non-patent document

Non-patent document 1: RP-152293, New WI propofol: 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

Disclosure of Invention

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, wherein when generating a HARQ-ACK codebook (e.g., a semi-static HARQ-ACK codebook), configuration information of all configured resource pools is traversed to determine one or more resource pools using the same SL reference slot as a PSFCH slot, and the number of SL occasions (e.g., PSSCH transmission occasions) to be generated is determined according to corresponding one or more PSFCH periods, so as to avoid the problem that the size of the HARQ-ACK codebook cannot accommodate HARQ-ACK bits corresponding to all possible actual PSSCH transmissions under the condition that a plurality of resource pools are configured.

According to the invention, a method performed by a user equipment is proposed, characterized by comprising: determining a set of all resource pools satisfying a first resource pool condition according to a SL reference time slot satisfying HARQ-ACK timing configuration from PSFCH to PUCCH, and determining according to the resource pool set

A PSSCH transmission opportunity, and transmitting the same

Indexes corresponding to the PSSCH transmission occasions are added to a PSSCH transmission occasion set.。

Preferably, if the SL reference slot belongs to a resource pool RP_refAnd the SL reference slot contains the resource pool RP_refThe PSFCH resource of (2), then the resource pool RP_refThe first resource pool condition is satisfied.

Preferably, the

Is equal to the maximum value of the configured PSFCH periods for all resource pools in the set of resource pools.

Furthermore, according to the present invention, there is provided a user equipment comprising: a processor; and a memory storing instructions, wherein the instructions, when executed by the processor, perform the method described above.

Therefore, the present invention provides a method, when generating a HARQ-ACK codebook (e.g., a semi-static HARQ-ACK codebook), traversing configuration information of all configured resource pools to determine one or more resource pools using the same SL reference slot as a PSFCH slot, and determining the number of SL occasions (e.g., PSSCH transmission occasions) to be generated according to the corresponding one or more PSFCH periods, thereby avoiding the problem that the size of the HARQ-ACK codebook cannot accommodate HARQ-ACK bits corresponding to all possible actual PSSCH transmissions under the condition that multiple resource pools are configured.

Drawings

The above and other features of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:

fig. 1 is a flowchart illustrating a method performed by a user equipment according to a first embodiment of the present invention.

Fig. 2 shows a block diagram of a user equipment UE to which the present invention relates.

Detailed Description

The invention is described in detail below with reference to the figures and the detailed description. 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 to prevent confusion of understanding of the present invention.

Embodiments according to the present invention are described in detail below with a 5G mobile communication system and its subsequent evolution as an example application environment. However, it is to be noted that the present invention is not limited to the following embodiments, but is applicable to more other wireless communication systems, such as a communication system after 5G and a 4G mobile communication system before 5G, and the like.

Some terms to which the present invention relates will be described below, and the terms to which the present invention relates are defined herein, unless otherwise specified. The terms given in the invention may adopt different naming manners in LTE, LTE-Advanced Pro, NR and the following communication systems, but the unified terms adopted in the invention can be replaced by the terms adopted in the corresponding systems when being applied to the specific systems.

3 GPP: 3rd Generation partnershift Project, third Generation Partnership Project

AGC: automatic Gain Control

AL: aggregation Level, Aggregation Level

AMF: access and Mobility Management Function

AS: access Stratum, Access Stratum

BWP: bandwidth Part, Bandwidth fragment

CA: carrier Aggregation, Carrier Aggregation

CBR: channel Busy Ratio, Channel Busy Ratio

CCE: control-channel element, control-channel element

CORESET: control-resource set, control resource set

And (3) 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 (crc)

CSI: channel-state Information, Channel state Information

CSS: common Search Space, Common Search Space

DC: dual Connectivity, Dual Connectivity

DCI: downlink Control Information, Downlink Control Information

DFN: direct Frame Number, Direct Frame Number

DFT-s-OFDM: discrete Fourier transform Spread Orthogonal Frequency Division Multiplexing

DL: downlink, Downlink

DL-SCH: downlink Shared Channel, Downlink Shared Channel

DM-RS: demodulation reference signal (DMRS)

eMBB: enhanced Mobile Broadband communications

eNB: E-UTRAN Node B, E-UTRAN Node B

E-UTRAN: evolved UMTS Terrestrial Radio Access Network

FDD: frequency Division Duplex, Frequency Division Duplex

FDRA: frequency Domain Resource Assignment, Frequency Domain Resource allocation

FR 1: frequency Range 1, Frequency Range 1

FR 2: frequency Range 1, Frequency Range 2

GLONASS: global NAvigation Satellite System (GNSS)

And g NB: NR Node B, NR Node B

GNSS: global Navigation Satellite System (GNSS)

GPS: global Positioning System (GPS)

HARQ: hybrid Automatic Repeat Request (HARQ)

HARQ-ACK: HARQ Acknowledgement, HARQ Acknowledgement

ID: identity, Identifier

IE: information Element, Information Element

IP: internet Protocol (IP)

LCID: logical Channel ID, Logical Channel identifier

LSB: least Significant Bit of the Least Significant Bit

LTE: long Term Evolution, Long Term Evolution

LTE-A: long Term Evolution-Advanced, Long Term Evolution-upgraded version

MAC: medium Access Control, Medium Access Control

MAC CE: MAC Control Element, MAC Control Element

MCG (calcium carbonate): master Cell Group, Master Cell Group

MIB: master Information Block, Master Information Block

MIB-SL: master Information Block-Sidelink, Master Information Block-Linked

MIB-SL-V2X: master Information Block-Sidelink-V2X, Master Information Block-go-vehicle to any entity

MIB-V2X: master Information Block-V2X, Master Information Block-vehicle to any entity

MME: mobility Management Entity

MSB: most Significant Bit of Most Significant Bit

mMTC: massive Machine Type Communication

NAS: Non-Access-Stratum, Non-Access Stratum

NDI: new Data Indicator, New Data Indicator

NR: new Radio, New Radio

NUL: normal Uplink, Normal Uplink

OFDM: orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing

PBCH: physical Broadcast Channel, Physical Broadcast Channel

PCell: primary Cell, Primary Cell

PDCCH: physical Downlink Control Channel, Physical Downlink Control Channel

PDCP: packet Data Convergence Protocol (PDMP)

PDSCH: physical Downlink Shared Channel (pdcch)

PSBCH: physical Sidelink Broadcast Channel, Physical direct Broadcast Channel

PSCCH: physical Sidelink Control Channel, a Physical direct Control Channel

PSFCH: physical Sidelink Feedback Channel, Physical direct Feedback Channel

PSSCH: physical Sidelink Shared Channel, a Physical direct Shared Channel

PRB: physical Resource Block, Physical Resource Block

PSCell: primary SCG Cell, Primary SCG Cell

PSS: primary Synchronization Signal, Primary Synchronization Signal

PSS-SL: primary Synchronization Signal for Sidelink, Primary Synchronization Signal

PSSS: primary Sidelink Synchronization Signal, Primary inline Synchronization Signal

PTAG: primary Timing Advance Group, Primary Timing Advance Group

PUSCH: physical uplink shared channel (PRCH)

PUCCH: physical uplink control channel, Physical uplink control channel

QCL: quasi co-location of Quasi co-location

QoS: quality of Service

QZSS: Quasi-Zenith Satellite System, Quasi-Zenith Satellite System

An RAR: random Access Response (RANDOM ACCESS RESPONSE)

RB: resource Block, Resource Block

RE: resource Element, Resource Element

REG: resource-element group, resource element group

RF: radio Frequency, Radio Frequency

RLC: radio Link Control, Radio Link Control protocol

RNTI: Radio-Network Temporary Identifier (RNTI)

RRC: radio Resource Control, Radio Resource Control

RV: redundancy Version of Reduncyny Version

S-BWP: sidelink Bandwidth Part, straight-forward Bandwidth fragment

S-MIB: sidelink Master Information Block, straight-row Master Information Block

S-PSS: sidelink Primary Synchronization Signal, straight Primary Synchronization Signal

S-SSB: sidelink SS/PBCH block, inline Sync Signal/physical broadcast channel Block

S-SSS: sidelink Secondary Synchronization Signal, direct auxiliary Synchronization Signal

SCell: secondary Cell, sub-Cell

SCG: secondary Cell Group, subcell Group

SCI: sidelink Control Information, straight-line Control Information

SCS: subcarrier Spacing, Subcarrier Spacing

SDAP: service Data Adaptation Protocol

SFN: system Frame Number, System Frame Number

SIB: system Information Block

SL: sidelink, straight

SL BWP: sidelink Bandwidth Part, straight-forward Bandwidth fragment

SL MIB: sidelink Master Information Block, straight-row Master Information Block

SL PSS: sidelink Primary Synchronization Signal, straight Primary Synchronization Signal

SL SS: sidelink synchronization Signal, direct line synchronization Signal

SL SSID: sidelink Synchronization Signal Identity, direct line Synchronization Signal Identity

SL SSB: sidelink SS/PBCH block, inline Sync Signal/physical broadcast channel Block

SL SSS: sidelink Secondary Synchronization Signal, direct auxiliary Synchronization Signal

SL-SCH: sidelink Shared Channel, straight-ahead Shared Channel

SLSS: sidelink synchronization Signal, direct line synchronization Signal

SLSS ID: sidelink Synchronization Signal Identity, direct line Synchronization Signal Identity

SLSSID: sidelink Synchronization Signal Identity, direct line Synchronization Signal Identity

SpCell: special Cell, Special Cell

SRS: sounding Reference Signal

And (3) SSB: SS/PBCH block, Sync Signal/physical broadcast channel Block

SSB-SL: SS/PBCH block for Sidelink, inline Sync Signal/physical broadcast channel Block

SSS: secondary Synchronization Signal, Secondary Synchronization Signal

SSS-SL: secondary Synchronization Signal for Sidelink, direct auxiliary Synchronization Signal

SSSB: sidelink SS/PBCH block, inline Sync Signal/physical broadcast channel Block

SSSS: secondary Sidelink Synchronization Signal, Secondary inline Synchronization Signal

STAG: secondary Timing Advance Group, Secondary Timing Advance Group

Sub-channel: sub-channels

SUL: supplement Uplink, supplement Uplink

S-GW: serving Gateway, Serving Gateway

TA: timing Advance, Timing Advance

TAG: timing Advance Group, Timing Advance Group

TB: transport Block

TCP: transmission Control Protocol, Transmission Control Protocol

TDD: time Division Duplex, Time Division Duplex

TPC: transmit power control, transmission power control

UE: user Equipment, User Equipment

UL: uplink, Uplink

UMTS: universal Mobile Telecommunications System, Universal Mobile communications System

UPF: user Plane Function

URLLC: Ultra-Reliable and Low Latency Communication

And (3) USS: UE-specific Search Space, UE-specific Search Space

V2I: Vehicle-to-Infrastructure, Vehicle-to-Infrastructure

V2N: vehicle-to-network, Vehicle-to-network

V2P: Vehicle-to-Pedestrian

V2V: Vehicle-to-Vehicle

V2X: vehicle-to-aircraft, Vehicle to any entity

VRB: virtual Resource Block, Virtual Resource Block

In all examples and embodiments of the invention, unless otherwise specified:

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, and accordingly, the information element Z corresponding to the parameter Z may also be referred to as the type of the "data unit" (or "field") Z.

Optionally, a sequence of N elements x (0), x (1),.. and x (N-1) may be abbreviated as x (0),.. and x (N-1) in the clear context.

Optionally, a sequence of N elements is N in length (or size N).

Optionally, where applicable, "V2X communication", "V2X SL communication" and "SL V2X communication" may be interchanged.

Optionally, where applicable, the "V2X communication" may be an NR SL based V2X communication.

Optionally, where applicable, the "V2X communication" may be LTE SL based V2X communication.

Optionally, in case of clear context, it can be considered that one TDD cell can configure one DL carrier, one UL carrier, and, optionally, one SUL carrier. The UL carrier may also be referred to as a "non-SUL carrier".

Alternatively, in the clear context, a "non-SUL carrier" may be considered to be a "UL carrier" in a TDD cell. For example, one TDD cell may configure one UL carrier, referred to as a "non-SUL carrier. As another example, one TDD cell may configure two UL carriers, one of which is a "non-SUL carrier" and the other of which is a "SUL carrier".

Optionally, where applicable, "send" and "transmit" may be interchanged.

Optionally, any two of "within XX", "in XX" and "on XX" may be interchanged where applicable (e.g. when an operation(s) is/are performed on a resource (s)). Where XX may be one or more carriers (e.g. SL carrier), or one or more BWPs (e.g. SL BWPs), or one or more resource pools (e.g. resource pools or sidelink resource pools), or one or more links (e.g. UL, DL, SL, or one or more channels (e.g. pscch), or one or more sub-channels, or one or more RBGs, or an RB, or an arbitrary "opportunity" (acquisition, e.g. PDCCH listening opportunity, pscch transmission opportunity, pscch reception opportunity, pscch transmission opportunity, pscch reception opportunity, PSFCH reception opportunity, or a symbol, a slot, a subframe, a half-frame, a frame, or an arbitrary time and/or frequency and/or code domain and/or spatial domain resource, etc.

Optionally, if S₁Is a set, then set S₁May be noted as cardinality (cardinality)

Alternatively, cardinality may be used to characterize the size of a set, e.g., the cardinality of an empty set is denoted as 0, as well as the cardinality of a set of a single element is denoted as 1, as well as the cardinality of a set of two elements is denoted as 2, and so on.

Optionally, if S₁Is a set, then S₁May be S₁A set of zero or one or more (including all) elements in the list.

Optionally, if S₁And S₂Are two sets, then S₁-S₂Representation set S₁And set S₂Is the "difference set", i.e. set S₁In a set S₂The set of elements of (1).

Optionally, if S₁And S₂Is two sets, then

Optionally, on the set S₁The elements in (A) are operated (e.g. screened, transformed, etc.) to obtain a set S₂Can be equivalent to directly in the original set S₁Get the updated set S₁。

Alternatively, "higher layer" may refer to one or more protocol layers or protocol sub-layers above the physical layer. E.g. the MAC layer, such as the RLC layer, such as the PDCP layer, such as the PC5RRC layer, such as the PC5-S layer, such as the RRC layer, such as the V2X layer, such as the application layer, such as the V2X application layer, etc.

Alternatively, "pre-configuration" may be pre-configuration in a higher layer protocol. Such as presetting (e.g., per specification of a higher layer protocol) at a particular memory location in the UE, or presetting (e.g., per specification of a higher layer protocol) at a particular memory location accessible by the UE.

Alternatively, "configuration" may be in a higher layer protocol through signaling. For example configured for the UE through RRC signaling.

Optionally, "configured" may be replaced with "preconfigured".

Optionally, "configured" may be replaced with "configured or preconfigured".

Alternatively, "a parameter has been configured" may be replaced with "a parameter has been provided".

Alternatively, "some parameter has been configured" may be replaced with "some parameter has been indicated (signaled)".

Optionally, "unconfigured" may be replaced with "unconfigured".

Optionally, "unconfigured" may be replaced with "unconfigured and/or unconfigured".

Alternatively, "unconfigured" may be replaced with "unconfigured" (pre-) configured ".

Optionally, suffixes in the parameter names such as "-r 8", "-r 9", "-r 10", "-r 11", "-r 12", "-r 13", "-r 14", "-r 15", "-r 16" and the like may be removed, where the context is clear. For example, "pdsch-HARQ-ACK-codebook" may be used to refer to the parameter pdsch-HARQ-ACK-codebook-r 16.

Alternatively, a time-domain resource may also be referred to as a time (time) resource.

Alternatively, the frequency-domain resource may also be referred to as a frequency resource.

Optionally, a metric value (denoted x)₂) Relative to another measure (denoted x)₁) The offset of (b) may also be referred to as an offset from the latter to the former. E.g. time slot t₂Relative to time slot t₁May also be referred to as a slave time slot t₁To time slot t₂And vice versa.

Alternatively, "time slot t" may refer to the time slot numbered t.

Alternatively, slots may be numbered within a subframe. For example, for 30kHz SCS, the number of a slot within a subframe may be the value of any one element in the set 0, 1.

Alternatively, the slots may be numbered within a half-frame. For example, for 30kHz SCS, the number of a slot within a subframe may be the value of any one element of the set 0, 1.

Alternatively, the slots may be numbered within the frame. For example, for 30kHz SCS, the number of a slot within a subframe may be the value of any one element of the set 0, 1.

Alternatively, slots may be numbered within the numbering period of a frame (e.g., 1024 frames). For example, for a 30kHz SCS, the number of one slot within a 1024 frame may be the value of any one element in the set 0, 1.

Alternatively, slots may be numbered starting at any one slot and periodically over any number of slots. E.g. time slot t₁、t₂、……、t_NMay be located within the same sub-frame or half-frame or frame numbering period (e.g., 1024 frames) or may be located within a different sub-frame or half-frame or frame numbering period (e.g., 1024 frames).

Optionally for time slot t₁、t₂、……、t_NWhere applicable, t may be used_i(2. ltoreq. i.ltoreq.N) relative to t₁Offset (e.g. Δ t)_i，1＝t_i-t₁) Represents t_i. Alternatively, t may be considered at this time₁＝0。

Alternatively, "symbol" refers to an "OFDM symbol".

Alternatively, the numbering of the OFDM symbols may start from 0 within one slot. For example, for normal CP, the set of numbers of OFDM symbols within a slot may be 0, 1. As another example, for extended CP, the set of numbers of OFDM symbols within a slot may be {0, 1.

Alternatively, a resource block may refer to a Virtual Resource Block (VRB), a Physical Resource Block (PRB), a Common Resource Block (CRB), or a resource block defined in other manners.

Optionally, the numbering of the sub-channels (sub-channels) may start from 0. For example, if the number of sub-channels configured in the resource pool is equal to

The set of numbers of the sub-channels may be

Alternatively, within a resource block, the numbering of the subcarriers may start from 0. For example, the number set of subcarriers within a resource block may be {0, 1.., 11 }.

Optionally, a value of a parameter (e.g. RRC parameter) with a size of L bits may be represented by an integer value (e.g. 0, 1, 2, etc.), or may be represented by a bit string (e.g. a bit string with a length of L, such as 'b') corresponding to the integer value₀b₁...b_L-1') is used. Wherein the content of the first and second substances,

optionally, the bit string' b₀b₁...b_L-1' in, the first (i.e., leftmost) bit (i.e., b)₀) Is the most significant bit, the last (i.e., rightmost) bit (i.e., b)_L-1) Is the least significant bit. For example, if L is 3 and the value of the parameter is represented by a bit string as '011', the most significant bit of the parameter has a value of 0 and the integer value corresponding to the parameter is 3.

Optionally, the bit string' b₀b₁...b_L-1' in, the first (i.e., leftmost) bit (i.e., b)₀) Is the least significant bit, the last (i.e., rightmost) bit (i.e., b)_L-1) Is the most significant bit. For example, if L is 3 and the value of the parameter is represented by a bit string as '011', the least significant bit of the parameter has a value of 0 and the integer value corresponding to the parameter is 6.

Alternatively, ACK may correspond to the integer 0 and NACK may correspond to the integer 1.

Alternatively, ACK may correspond to the integer 1 and NACK may correspond to the integer 0.

Alternatively, "DCI" may refer to one applicable DCI format. For example DCI format 3_ 0.

Alternatively, "SL transmission" may refer to any of the following:

PSCCH transmissions.

PSSCH transmission.

PSCCH and PSCCH transmissions.

PSCCH or pscsch transmissions.

PSFCH transmission.

S-SSB transmission.

In communication based on D2D (Device to Device) technology, an interface between devices (also referred to as User Equipment, UE) may be referred to as a PC5 interface, and a corresponding transmission link may be referred to as a "straight" or "sidelink" (SL) link at a physical layer to distinguish the Uplink (UL) link and the Downlink (DL) link. The communication based on the SL link may be referred to as SL communication (sidelink communication). SL links based on LTE technology may be referred to as LTE SL links. SL links based on NR technology may be referred to as NR SL links. The 5G V2X communication may be based on LTE SL as well as NR SL. Hereinafter, unless otherwise specified, "SL" refers to NR SL, and "SL communication" refers to NR SL communication.

The physical layer of the SL link may support one or more modes of transmission in one or more of an in-coverage (in-coverage), out-of-coverage (out-of-coverage) and partial-coverage (partial-coverage) scenarios, such as broadcast (broadcast) transmission, multicast (groupcast) transmission, unicast (unicast) transmission, and so on.

For FR1(Frequency Range 1), SCS (subcarrier spacing, denoted as Δ f, in kHz) corresponding to the SL link may be 15kHz (normal CP), or 30kHz (normal CP), or 60kHz (normal CP or extended CP); for FR2(Frequency Range 2), the SCS for the SL link may be 60kHz (normal CP or extended CP), or 120kHz (normal CP). Each SCS corresponds to one SCS configuration(SCS configuration, denoted as μ), for example, Δ f 15kHz corresponds to μ 0, Δ f 30kHz corresponds to μ 1, Δ f 60kHz corresponds to μ 2, Δ f 120kHz corresponds to μ 3, and so on; as another example, for any given μ, Δ f is 2^μ15 kHz. μ may be the SCS configuration of SL carriers; for example, all SL transmissions in one SL carrier use the same SCS configuration and/or the same CP. μ may be SCS configuration of SL BWP (Sidelink Bandwidth Part, straight-going Bandwidth segment, alternatively referred to as S-BWP, alternatively referred to as SBWP, alternatively referred to as SL-BWP, alternatively referred to as BWP-SL, or simply BWP); for example, all SL transmissions in one SL BWP use the same SCS configuration and/or the same CP. μ may be the SCS configuration of a resource pool (resource pool); for example, all SL transmissions in one resource pool use the same SCS configuration and/or the same CP.

Signals and channels related to SL operation may include:

SL PSS (Primary Linear Synchronization Signal), alternatively called S-PSS, alternatively called SPSS, alternatively called SL-PSS, alternatively called PSS-SL, alternatively called PSS (Primary Linear Synchronization Signal), and so on.

An SL SSS (direct Synchronization Signal), which is alternatively referred to as an S-SSS, or an SSSs (direct Synchronization Signal), or an SL-SSS, or an SSS-SL, or an SSSs (direct Synchronization Signal), or an auxiliary direct Synchronization Signal), and the like.

PSBCH (Physical Sidelink Broadcast Channel).

PSCCH (Physical downlink Control Channel).

PSSCH (Physical Sidelink Shared Channel).

PSFCH (Physical Sidelink Feedback Channel).

The SL PSS, SL SSS and PSBCH together may be organized in block form on time/frequency resources, for example called S-SSB (Single Synchronization Signal/PSBCH block, or SSS/PSBCH block, inline Synchronization Signal/physical inline 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 (e.g., 11 resource blocks) of the S-SSB may be located within a corresponding SL carrier (e.g., within one SL BWP configured within the SL carrier). The SL PSS and/or the SL SSS may carry a SL SSID (Sidelink Synchronization Identity, or Sidelink Synchronization Identifier, a direct Synchronization Identity, or Sidelink Synchronization Signal Identity, or a direct Synchronization Signal Identity, or a SLSED-SSID, or a SSID-SL, or a BCH SID, or a SLSS ID, or a S-SSID, etc.), the PSS may carry a SL MIB (Sidelink Master Information Block, a direct Master Information Block, or a SL-MIB, or a S-MIB, or a MIB-SL, or a Master Information Block Sidelink), for example configured by a parameter Master Information Block.

On the SL link, the time and/or frequency domain resources for transmission of the S-SSB may be configured by higher layer parameters. For example, in the frequency domain, the location of the S-SSB in the frequency domain may be configured by the parameter absoluteFrequency SSB-SL (or the parameter SL-absoluteFrequency SSB). As another example, in the time domain, one or more synchronization configuration items may be configured by a parameter SL-SyncConfigList, where in each synchronization configuration item, the synchronization configuration item may be configured by a parameter numSBwithPeriod-SL (or a parameter SL-NumSSB-WithPeriod) within an S-SSB period with a length of 16 frames

An S-SSB, wherein the number (or index) is

Time slot of S-SSB(slot) the index in a period of length 16 frames may be

Wherein

May be configured by a parameter timeOffsetSSB-SL (or parameter SL-timeOffsetSSB),

may be configured by a parameter timelntervalssb-SL (or a parameter SL-TimeInterval).

Sometimes, the time domain resource and/or the frequency domain resource configured for the S-SSB in the SL carrier may be considered to correspond to a candidate (candidate) S-SSB (or referred to as an S-SSB candidate). One or more S-SSB transmissions may be present (e.g., from different UEs, respectively) at the same time or none at all on the time and/or frequency domain resources corresponding to a candidate S-SSB.

Sometimes, a time slot configured with S-SSB (or configured with S-SSB resources, or configured with candidate S-SSB resources) may also be referred to as a time slot configured with SLSS (or configured with SLSS resources). And vice versa.

A synchronization source (synchronization source) related to SL synchronization may include a GNSS (Global navigation satellite system), a gNB, an eNB, and a UE (e.g., an NR UE, also an LTE UE, also an NR UE or an LTE UE). One UE that is the synchronization source (e.g., the UE transmitting the S-SSB) may be referred to as a SyncRefUE.

Examples of the 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), and the like.

Can be configured in SL carrierOne or more (e.g., one) SL BWPs are provided. For each SL BWP, a starting symbol that may be used for SL transmission (e.g., noting that symbol is numbered as SL-StartSymbol within a slot) may be configured by a parameter startSLsymbols (or parameter SL-StartSymbol)

) And configuring the number of symbols that can be used for SL transmission (for example, noting that the number of symbols is the number of symbols) by a parameter length slsymbols (or parameter SL-length symbols)

) Wherein said

The individual symbols may be consecutive symbols.

Can be recorded as

For example

Can be recorded as

For example

The "symbol that can be used for SL transmission" may be referred to as "SL symbol". Set of SL symbols (chronologically) as

Then

For example, if

The set of SL symbols is 7, 8, 9, 10, 11, 12, 13.

Only slots that satisfy certain conditions may be used for SL transmission. E.g. at least a symbol in said slot

(symbol)

… …, symbol

Is an uplink symbol (e.g., a time slot configured by tdd-UL-DL-configuration common in servingCellConfigCommon in SIB1 that satisfies the condition). As another example, the time slot must be in a set of time slots of a configured resource pool.

One or more resource pools may be configured within one SL BWP, wherein, within each resource pool,

in the frequency domain, the position of the starting resource block of the starting sub-channel of the resource pool within the SL BWP may be configured by a parameter startRB-Subchannel (or SL-startRB-Subchannel).

In the frequency domain, each subchannel may be composed of one or more resource blocks, a specific number of resource blocks (called the size of the subchannel, e.g. denoted as n)_{subChannelSize}) Can be configured by a parameter subchannel size (or sl-subchannel size). N is_{subChannelSize}The resource blocks may be contiguous in the frequency domain.

In the frequency domain, the number of subchannels (denoted as numSubchannel) occupied by the resource pool may be configured by a parameter numSubchannel (or a parameter sl-numSubchannel)

). Said N is

The subchannels may be contiguous in the frequency domain.

In the frequency domain, the Number of PRBs occupied by the resource pool (denoted as "PRB") can be configured by a parameter sl-RB-Number

). Alternatively, the UE may assume the stated

Last in PRB

One PRB is not used.

In the frequency domain, the sub-channels in a resource pool may be numbered 0, 1, … …,

wherein the subchannel numbered i may be referred to as "subchannel i"

In the time domain, a time slot bitmap may be configured with a parameter timeresourcepool (or parameter sl-TimeResource) for indicating which time slot or slots in a candidate time slot set belong to the resource pool. It can be seen that two consecutive slots within one resource pool may not be contiguous in time (e.g., slot 0 and slot 6 within one frame may be two consecutive slots in one resource pool). For convenience, the set of timeslots in a resource pool may be denoted as { r₀，r₁，r₂，...}。

The allocation of resources (e.g., time domain resources, such as frequency domain resources, such as code domain resources) related to SL operation can be classified as follows:

mode 1(Mode 1, or Resource Allocation Mode 1, or straightforward 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, or straightforward Resource Allocation Mode 2, Sidelink Resource Allocation Mode 2): the UE determines resources for SL transmission (i.e., the base station does not participate in scheduling of resources for SL transmission). For example, a UE performing a SL transmission operation autonomously determines resources for SL transmission.

The UE may schedule transmission of data through SCI (Sidelink Control Information). SL operations may support a "two-stage SCI" (two-stage SCI), where the first stage SCI (1)^stA stage SCI) may contain information of resource reservation and/or resource allocation to facilitate detection (sensing) of resource reservation and/or resource allocation by all UEs monitoring (monitor) SL links; second stage SCI (2)^ndStage SCI) may contain other information, such as information related to HARQ feedback, etc. Hereinafter, when "SCI" is referred to individually, it may refer to the first-stage SCI, or the second-stage SCI, or both the first-stage SCI and the second-stage SCI, where applicable, unless otherwise specified.

The format of the first stage SCI may be SCI format 1-a (or written as "SCI format 1_ a"). The following are some examples of information that may be contained in SCI format 1-a:

priority (Priority).

Frequency resource allocation (Frequency resource allocation).

Time resource allocation (Time resource assignment).

Resource reservation period (Resource reservation period).

DMRS pattern (DMRS pattern).

Second stage SCI Format (2)^nd-stage SCI format)。

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 may be contained in SCI format 2-a and/or SCI format 2-B:

source Layer one identifier (Source Layer-1 ID, alternatively referred to as Layer-1Source ID, Layer one Source identifier, alternatively referred to as Physical Layer Source ID, Physical Layer Source identifier, or (where the context is clear) Source ID, Source identifier).

A Destination Layer-one identifier (Destination Layer-1 ID, alternatively referred to as Layer-1 Destination ID, Layer-one Destination identifier, alternatively referred to as Physical Layer Destination ID, Physical Layer Destination identifier, alternatively referred to (where context is clear) as Destination ID, Destination identifier).

HARQ Process identification (HARQ Process ID), or HARQ Process Number (HARQ Process Number).

New Data Indicator (NDI).

Redundancy Version (Redundancy Version, RV).

The first stage SCI may be carried on the PSCCH. The second stage SCI may be multiplexed on the PSCCH associated with (or scheduled to) the PSCCH with the data to be transmitted. The PSCCH and its associated PSCCH may be multiplexed in some manner on the time and/or frequency domain resources allocated for SL transmissions (e.g., the starting resource block of the PSCCH is the starting sub-channel of its associated PSCCH. In addition, the first-stage SCI and/or the corresponding second-stage SCI may be considered to schedule the psch (or to schedule transmission of the psch, or to schedule transmission of the TBs carried in the psch).

A "psch transmission occasion" may be one or more time and/or frequency and/or code domain resources related to (e.g., used by) psch transmission and/or reception. For example, one of the following:

one slot in one resource pool.

One or more symbols related to PSSCH transmission in a slot in a resource pool.

One or more time slots in a resource pool.

One or more symbols related to PSSCH transmission in one or more slots in a resource pool.

The "PSCCH transmission occasion" may also be referred to as a "PSCCH-PSCCH transmission occasion".

The definition of "psch transmission occasion" may apply to only one resource pool (i.e., the "psch transmission occasion" is defined separately within each resource pool), or may apply to multiple resource pools (e.g., one "psch transmission occasion" may include time and/or frequency and/or code domain resources within multiple resource pools).

A "psch reception occasion" may be one or more time and/or frequency and/or code domain resources related to psch transmission and/or reception (e.g., used by one or more psch transmissions and/or receptions). For example, one of the following:

one slot in one resource pool.

One or more symbols related to psch transmission and/or reception in a slot in a resource pool.

One or more time slots in a resource pool.

One or more symbols related to psch transmission and/or reception in one or more slots in a resource pool.

The "PSCCH reception timing" may also be referred to as a "PSCCH-PSCCH reception timing".

The definition of "psch reception occasion" may apply to only one resource pool (i.e., the "psch reception occasion" is defined separately within each resource pool), or may apply to multiple resource pools (e.g., one "psch reception occasion" may include time and/or frequency and/or code domain resources within multiple resource pools).

For a SL transmission containing PSCCH and/or PSCCH, the transmitter may be referred to as TX UE and the receiver may be referred to as RX UE. If HARQ feedback is enabled, the RX UE may feed back information related to PSCCH and/or PSCCH reception (e.g., referred to as "HARQ-ACK information") through the PSFCH. For example, when an RX UE receives a PSSCH in a resource pool and a value of "HARQ feedback enabled/disabled indicator" in a corresponding SCI is 1, the RX UE provides HARQ-ACK information through a 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, HARQ-ACK information reported on a SL relating to SL transmissions may indicate a Positive Acknowledgement (ACK, Acknowledgement, or Positive Acknowledgement), e.g., indicating that data carried by the corresponding PSCCH and/or PSCCH may be correctly decoded, or a Negative Acknowledgement (NACK, or NAK), e.g., indicating that data carried by the corresponding PSCCH and/or PSCCH may not be correctly decoded; in other configurations, HARQ-ACK information reported on the SL related to SL transmission may indicate only a NACK (e.g., no HARQ feedback is sent when data carried by the corresponding PSCCH and/or PSCCH can be correctly decoded; a NACK is sent when data carried by the corresponding PSCCH and/or PSCCH cannot be correctly decoded). "ACK" and "NACK" may be referred to as HARQ-ACK value.

The "psch transmission occasion" and the "psch reception occasion" may be considered to be defined from the perspective of the TX UE and the RX UE, respectively, e.g., one "psch transmission occasion" may be considered to be one "psch reception occasion" from the perspective of the RX UE and one "psch reception occasion" may be considered to be one "psch transmission occasion" from the perspective of the TX UE.

In the time domain, the PSFCH resource may occur periodically in a resource pool, such as a corresponding period (e.g., referred to as a "PSFCH period" or a "PSFCH resource period," e.g., noted as "PSFCH period")

E.g., in number of slots) may be configured, e.g., as a function of parameter Period psfchreresource (or parameter sl-PSFCH-Period)

Or

Or

Or

). Wherein the content of the first and second substances,

may be used to indicate that no PSFCH resources are configured in the corresponding resource pool. For example, if a resource pool is not configured with a PSFCH related parameter (e.g., a parameter configured through sl-PSFCH-Config) or a PSFCH period configured in the parameter sl-PSFCH-Config is 0, it indicates that the resource pool is not configured with a PSFCH resource. For another example, if a resource pool has configured the parameter sl-PSFCH-Config and the PSFCH period configured in the parameter sl-PSFCH-Config is greater than 0 time slot, it indicates that the resource pool has configured the PSFCH resource.

One slot in which the PSFCH resources are configured may be referred to as a "PSFCH slot. Within a PSFCH slot, the symbols related to the transmission of the PSFCH may be the last SL symbol or symbols of the slot, e.g. for a PSFCH format 0, the last three SL symbols (e.g. symbols)

(symbol)

And symbols

Wherein, the symbol

Can be used for AGC and, in addition, the content transmitted on the symbol can be copied from the symbol

Content transmitted over); symbol

May be used for PSFCH transmission; symbol

May be used as a GAP symbol, or a GUARD (GUARD) symbol. Other symbols of one PSFCH slot may be used to transmit other SL signals/channels, such as PSCCH, etc.

In a resource pool with PSFCH resources configured,

a slot (e.g., such a slot is referred to as a "pscch slot") may be associated with a PSFCH slot. For example, the association may be as follows:

a said

The PSSCH slots are consecutive slots in the resource pool.

For said

Each one of PSSCH in which the PSFCH slot is located at least in the resource pool

The first PSFCH slot after a slot. Wherein the content of the first and second substances,

it can be configured by the parameter sl-Min TimeGapPSFCH.

For example, if

And time slot r_n+5If it is a PSFCH time slot in the resource pool, the time slot r in the resource pool_nTime slot r_n+1Time slot r_n+2And time slot r_n+3Is associated to the PSFCH time slot r_n+5。

In the frequency domain, a PSFCH resource in a resource pool may correspond to a size of a PSFCH resource

E.g., a set of contiguous PRBs, such as a set of partially or fully non-contiguous PRBs. Wherein the content of the first and second substances,

the configuration may be performed by the parameter rbSetSFCH, or by the parameter sl-PSFCH-RB-Set.

In code domain, PSFCH resources within a resource pool may correspond to

A cyclic shift pair (cyclic shift pair). Wherein the content of the first and second substances,

may be configured or indicated by a higher layer protocol (e.g., configured by a parameter sl-NumMuxCS-Pair).

In a resource pool with allocated PSFCH resources, recording the associated PSFCH time slot in a PSFCH time slot

Each PSSCH time slot is a time slot

Of the resource pool

The number of the sub-channels is respectively

The resource pool is configured

The PRBs used for the PSFCH are respectively numbered as

The time slot i and the subchannel j may correspond to a PRB range (or set of PRBs, where the number of PRBs is indicated by an interval)

Wherein

For occupation in time slot i starting from sub-channel j

One PSSCH transmission for several consecutive sub-channels, and the corresponding PSFCH resource can occupy

A PRB, wherein,

the value of (d) may be an integer. For example,

(e.g., when the parameter sl-PSFCH-CandidateResourceType is configured to "startSubCH"). In another example of this application, a,

(e.g., when the parameter sl-PSFCH-CandidateResourceType is configured to "allocSubCH"), at this point in time, the

Each PRB can be composed of a PRB range corresponding to a time slot i and a sub-channel j, a PRB range corresponding to a time slot i and a sub-channel j +1, … …, a time slot i and a sub-channel

Corresponding PRB range components.

The above-mentioned

One PRB may correspond to

The index (or number) of the "PSFCH resource" (PSFCH resource) can be according to

The PRB indexes (or numbers) of the PRBs are indexed (or numbered) in an increasing order, and then the indexes (or numbers) are indexed according to the PRB indexes (or numbers) of the PRBs

The cyclic shift pairs of the cyclic shift pairs index (or number) in increasing order. It can be seen that a "PSFCH resource" may correspond to a particular combination of time domain resources, frequency domain resources, and code domain resources.

A "PSFCH transmission occasion" (PSFCH transmission occasion) may be one or more time and/or frequency and/or code domain resources related to (e.g., used by) a PSFCH transmission and/or reception, such as one of the following:

one slot configured with PSFCH resources.

One PSFCH slot.

One slot in a resource pool in which PSFCH resources are configured.

One PSFCH slot in one resource pool.

One or more symbols associated with a PSFCH transmission (e.g., the last three SL symbols in a PSFCH slot, as well as symbols used to transmit PSFCH in a PSFCH slot (e.g., the second-to-last SL symbol) and symbols used for AGC (e.g., 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, as well as symbols used to transmit PSFCH in a PSFCH slot (e.g., the second-to-last SL symbol) and symbols used for AGC (e.g., the third-to-last SL symbol), etc.).

One PSFCH resource.

Time domain resources corresponding to one PSFCH resource.

Frequency domain resources corresponding to one PSFCH resource.

Code domain resources corresponding to one PSFCH resource.

Time domain resources and frequency domain resources corresponding to one PSFCH resource.

Time domain resources and code domain resources corresponding to one PSFCH resource.

Frequency domain resources and code domain resources corresponding to one PSFCH resource.

Time domain resources, frequency domain resources, and code domain resources corresponding to one PSFCH resource.

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.

Code domain resources corresponding to one or more PSFCH resources.

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.

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.

The definition of "PSFCH transmission occasion" may apply to only one resource pool (i.e. the "PSFCH transmission occasion" is defined separately in each resource pool), or may apply to multiple resource pools (e.g. one "PSFCH transmission occasion" may comprise time domain and/or frequency domain and/or code domain resources in multiple resource pools).

A "PSFCH reception occasion" may be one or more time and/or frequency and/or code domain resources related to (e.g., used by) a PSFCH transmission and/or reception, e.g., one or more PSFCH transmissions and/or receptions, e.g., one of the following:

one slot configured with PSFCH resources.

One PSFCH slot.

One slot in a resource pool in which PSFCH resources are configured.

One PSFCH slot in one resource pool.

One PSFCH resource.

Time domain resources corresponding to one PSFCH resource.

Frequency domain resources corresponding to one PSFCH resource.

Code domain resources corresponding to one PSFCH resource.

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.

Code domain resources corresponding to one or more PSFCH resources.

The definition of "PSFCH reception occasion" may be applied to only one resource pool (i.e. the "PSFCH reception occasion" is defined separately in each resource pool), or may be applied to multiple resource pools (e.g. one "PSFCH reception occasion" may comprise time domain and/or frequency domain and/or code domain resources in multiple resource pools).

The "PSFCH transmission occasion" and the "PSFCH reception occasion" may be considered to be defined from the perspective of the TX UE and the RX UE, respectively, e.g., one "PSFCH transmission occasion" may be considered to be one "PSFCH reception occasion" from the perspective of the RX UE and one "PSFCH reception occasion" may be considered to be one "PSFCH transmission occasion" from the perspective of the TX UE.

The network side (e.g., a base station, etc.) may configure one or more "SL configuration grants" (or SL grants in short if the context is clear) for a UE (e.g., a TX UE), for example, by using a parameter SL-configuredgontlist. Each SL configuration grant may be associated with periodic psch transmission resources (or may schedule periodic psch transmissions), where the corresponding period may be configured via a parameter SL-PeriodCG, and one or more psch transmission resources may be allocated (or one or more psch transmissions may be scheduled) for each period. The SL configuration grants may be divided into type-1 SL configuration grants (type 1 sidelink configured grant, or sidelink configured grant type 1) and type-2 SL configuration grants (type 2 sidelink configured grant, or sidelink configured grant type 2), wherein the former associated resources may be configured and/or activated and/or deactivated by semi-static signaling (e.g., RRC signaling), the latter associated resources may be configured by semi-static signaling (e.g., RRC signaling), and the configured resources may be dynamically activated and/or deactivated (e.g., by DCI).

The network side (e.g., base station, etc.) may allocate one or more psch transmission resources (or schedule one or more psch transmissions) to a UE (e.g., TX UE) via DCI (e.g., DCI format 3_ 0). Such a resource allocation may be referred to as "dynamic grant" (dynamic grant) to distinguish it from "configured grant" (configured grant).

The network side (e.g., a base station, etc.) may provide (e.g., via RRC configuration, as indicated by DCI) uplink resources (e.g., PUCCH resources, as indicated by PUSCH resources) for a UE (e.g., a TX UE) to report HARQ-ACK information related to SL transmission, e.g., to indicate transmission and/or reception of data and/or control information on SL resources allocated by SL configuration grant or DCI. Such HARQ-ACK information may be referred to as "HARQ-ACK information related to SL transmission reported on UL".

Specifically, HARQ-ACK information reported on the UL relating to SL transmissions may come from (or be based on) one or more reception and/or transmission operations of the UE on the direct link, including, for example, one or more of the following:

PSFCH reception (or PSFCH receptions). For example, after the base station transmits the PSSCH on the SL resource indicated by the DCI, the TX UE receives the PSFCH transmitted by the RX UE on the PSFCH slot associated with the slot where the PSSCH is located, acquires HARQ-ACK information related to SL transmission reported on the SL, and thereby determines corresponding HARQ-ACK information related to SL transmission reported on the UL.

PSFCH-free reception (absence of PSFCH reception, or absence of PSFCH reception). For example, the reception of the PSFCH cannot be performed in the time slot in which it would otherwise be needed due to performing other higher priority tasks (e.g., performing higher priority UL transmissions). As another example, the SCI of a scheduled data transmission on the direct link indicates that a UE that does not need to receive the data transmission sends a HARQ-ACK (e.g., a HARQ-ACK carried over the PSFCH). As another example, the PSCCH and/or PSCCH is not transmitted due to not detecting DCI (e.g., DCI format 3_0) scheduling the corresponding PSCCH and/or PSCCH transmission, and accordingly the PSFCH is also not received. As another example, the PSFCH resource is not configured in the corresponding resource pool. As another example, a PSFCH is not detected at the corresponding PSFCH reception opportunity.

PSCCH and/or PSCCH transmissions. For example, the TX UE transmits PSCCH and/or PSCCH on SL resources indicated by the base station through DCI.

No PSCCH and/or PSCCH transmission. For example, transmission of the PSCCH and/or PSCCH cannot be performed in a slot that would otherwise require transmission of the PSCCH and/or PSCCH due to performing other higher priority tasks, such as performing higher priority UL transmissions. As another example, the PSCCH and/or PSCCH is not transmitted because a DCI (e.g., DCI format 3_0) scheduling the corresponding PSCCH and/or PSCCH transmission is not detected.

In contrast, the UE may also report HARQ-ACK information related to DL transmission on uplink resources (e.g., PUCCH, also like PUSCH) (and accordingly, use HARQ-ACK codebook related to DL transmission) for feeding back transmission and/or reception conditions (e.g., transmission and/or reception status; also like transmission and/or reception result; also like no transmission is performed; also like no reception is performed; and so on) of data and/or control information on the downlink. Such HARQ-ACK information may be referred to as "HARQ-ACK information related to DL transmission reported on UL". In particular, HARQ-ACK information reported on the UL relating to DL transmissions may come from (or be based on) some reception operations of the UE on the downlink, including for example one or more of the following:

PDSCH reception with corresponding PDCCH reception.

PDSCH reception without corresponding PDCCH reception (e.g., SPS PDSCH reception).

PDCCH reception. For example, an "SPS PDSCH release" indication is indicated in DCI carried by the PDCCH. As another example, an "SCell dormant" (SCell dormant) is indicated in DCI carried by PDCCH.

In all embodiments and implementations of the present invention, "HARQ-ACK information" refers to HARQ-ACK information related to SL transmission reported on UL, as not particularly described.

For end in time slot n

One PSFCH reception opportunity (e.g., the time slot n is the

The last one of the slots corresponding to each of the PSFCH reception occasions), the UE reports (or provides) the corresponding HARQ-ACK information in one UL transmission in slot n + k. At this time, the offset between the timeslot n to the timeslot n + k may be said to satisfy "timing relationship between PSFCH and uplink HARQ feedback". Wherein the content of the first and second substances,

optionally, the system may be adapted to,

is an integer, and

for example,

in another example

In another example of this application, a,

optionally, the time slot n and the time slot n + k are numbered according to the time slot used for the UL transmission (i.e. according to the SCS and/or CP used for the UL transmission). Or, the SCS and/or CP corresponding to the time slot n and the time slot n + k are the SCS and/or CP used for the UL transmission, respectively.

Optionally, the

A PSFCH reception opportunity (or the PSFCH reception opportunity

Time slot where each PSFCH receiving opportunity is located) is respectively associated with the same DCI format (e.g., DCI format 30) for scheduling

A PSSCH transmission. Wherein the content of the first and second substances,

alternatively, the value of the offset "k" may be one of the set configured by the parameter sl-PSFCH-topcch, indicated by a "PSFCH-to-HARQ feedback timing indicator" field in the DCI. Alternatively,

equal to the number of PSSCH transmissions scheduled by the DCI format.

Alternatively, the first phase may be performed,

is a predefined integer. For example

Optionally, at this time, the

The one psch transmission may be any one psch transmission scheduled by the DCI format.

Optionally, the system may be adapted to,the above-mentioned

A PSFCH reception opportunity (or the PSFCH reception opportunity

Time slot in which one PSFCH reception opportunity is located) respectively associated with scheduling of the same SL configuration grant in the same cycle

A PSSCH transmission. Wherein the content of the first and second substances,

optionally, the offset "k" may be configured by a parameter SL-PSFCH-ToPUCCH-CG-type (e.g., the parameter SL-PSFCH-ToPUCCH-CG-type configurable for the type-1 SL configuration permission), for example, for the type-1 SL configuration permission.

Alternatively, for example, for a type-2 SL configuration permission, the value of the offset "k" may be one of the set configured by the parameter SL-PSFCH-topcch, indicated by the "PSFCH-to-HARQ feedback timing indicator" field in one DCI format (e.g., the DCI format that activates the SL configuration permission).

Alternatively, the first phase may be performed,

equal to the number of PSSCH transmissions scheduled by the SL configuration grant in the same period.

Alternatively, the first phase may be performed,

is a predefined integer. For example

Optionally, at this time, the

The one psch transmission may be any one psch transmission scheduled by the SL configuration grant in the same period.

Optionally, the UL transmission may be one PUCCH transmission.

Optionally, the UL transmission may be one PUSCH transmission.

One or more HARQ-ACK information bits generated (or provided, or reported) by the UE in slot n + k may be included in a "HARQ-ACK codebook" (or, alternatively, an instance of a "HARQ-ACK codebook") in a certain order and/or structure and/or organization. One or more HARQ-ACK information bits in one HARQ-ACK codebook may be multiplexed on one PUCCH transmission or on one PUSCH transmission. In all embodiments and implementations of the present invention, the "HARQ-ACK codebook" refers to a HARQ-ACK codebook containing "HARQ-ACK information related to SL transmission reported on UL", as not particularly described.

The UE may be configured to report the HARQ-ACK information in a Type-1 (Type-1) HARQ-ACK codebook (codebook) or in a Type-2 (Type-2) HARQ-ACK codebook. The size of the type-1 HARQ-ACK codebook may depend only on semi-static configuration information (e.g., configuration information of the RRC layer); the size of the type-2 HARQ-ACK codebook may be dynamically varied (e.g., based on the number of detected DCI formats associated with the HARQ-ACK codebook, etc.), e.g., the number of HARQ-ACK information bits in the type-2 HARQ-ACK based codebook transmitted on two different PUCCH slots may be different. If there is a PUSCH transmission on the slot where the PUCCH resource is located, the UE may multiplex the HARQ-ACK information on the PUSCH transmission.

Alternatively, the HARQ-ACK information in the HARQ-ACK codebook may be associated with only one SL configuration grant.

Optionally, the HARQ-ACK information within 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 (e.g., 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 transmitted on a direct uplink, including, for example, one or more of:

scheduling PSCCH and/or PSCCH transmissions. At this time, the CRC of the DCI format is optionally scrambled using SL-RNTI or SL-CS-RNTI.

Indicate SL configuration permission (e.g., type-2 SL configuration permission) activation.

Indicate release of the SL configuration license (e.g., type-2 SL configuration license).

[ example one ]

A method performed by a user equipment according to a first embodiment of the present invention is described below with reference to fig. 1.

As shown in fig. 1, in a first embodiment of the present invention, a user equipment UE performs steps including: step S101 and step S103.

Specifically, in step S101, a set of SL opportunities M is acquired_AThe relevant dependency information.

Optionally, the SL opportunity may be one of the following:

psch transmission occasions. Wherein the content of the first and second substances,

alternatively, one psch transmission occasion may be used for one "candidate psch transmission", where,

optionally, one "candidate pscch transmission" may represent any one actual pscch transmission on a corresponding pscch transmission occasion.

Optionally, one "candidate pscch transmission" has a corresponding PSFCH reception.

Optionally, one "candidate pscch transmission" has no corresponding PSFCH reception.

Optionally, one "candidate pscch transmission" has a corresponding PSFCH reception occasion.

Optionally, one "candidate pscch transmission" has no corresponding PSFCH reception occasion.

Wherein the content of the first and second substances,

optionally, the PSFCH receives HARQ-ACK feedback for acquiring the candidate PSSCH transmission.

Optionally, receiving, by the PSFCH on the PSFCH reception occasion, HARQ-ACK feedback for acquiring the candidate PSSCH transmission.

PSFCH reception opportunity. Wherein the content of the first and second substances,

alternatively, one PSFCH reception opportunity may be used for one "candidate PSFCH reception", wherein,

optionally, one "candidate PSFCH reception" may represent any one actual PSFCH reception on the corresponding PSFCH reception occasion.

Optionally, one "candidate PSFCH receives" with a corresponding PSSCH transmission.

Optionally, one "candidate PSFCH receives" no corresponding PSSCH transmission.

Optionally, one "candidate PSFCH reception" has a corresponding PSSCH transmission occasion.

Optionally, one "candidate PSFCH receives" without a corresponding PSSCH transmission occasion.

Wherein the content of the first and second substances,

optionally, the candidate PSFCH receives HARQ-ACK feedback for acquiring the PSSCH transmission.

Optionally, the candidate PSFCH receives HARQ-ACK feedback for acquiring PSSCH transmissions on the PSSCH transmission occasion.

Psch reception timing. Wherein the content of the first and second substances,

alternatively, one psch reception occasion may be used for one "candidate psch reception", where,

optionally, one "candidate pscch reception" may represent any one actual pscch reception at a corresponding pscch reception occasion.

Optionally, one "candidate pscch reception" has a corresponding PSFCH transmission.

Optionally, one "candidate pscch reception" has no corresponding PSFCH transmission.

Optionally, one "candidate pscch reception" has a corresponding PSFCH transmission occasion.

Optionally, one "candidate pscch reception" has no corresponding PSFCH transmission occasion.

Wherein the content of the first and second substances,

optionally, the PSFCH transmits HARQ-ACK information for feedback on the candidate PSSCH reception.

Optionally, a PSFCH transmission on the PSFCH transmission occasion is used to feed back HARQ-ACK information regarding the candidate PSSCH reception.

PSFCH transmission opportunity. Wherein the content of the first and second substances,

alternatively, one PSFCH transmission opportunity may be used for one "candidate PSFCH transmission", wherein,

optionally, one "candidate PSFCH transmission" may represent any one actual PSFCH transmission on the corresponding PSFCH transmission occasion.

Optionally, one "candidate PSFCH transmission" has a corresponding PSSCH reception.

Optionally, one "candidate PSFCH transmission" has no corresponding PSSCH reception.

Optionally, one "candidate PSFCH transmission" has a corresponding PSSCH reception occasion.

Optionally, one "candidate PSFCH transmission" has no corresponding pscch reception occasion.

Wherein the content of the first and second substances,

optionally, the candidate PSFCH transmits HARQ-ACK information for feedback on the PSSCH reception.

Optionally, the candidate PSFCH transmits HARQ-ACK information for feeding back on PSSCH reception on the PSSCH reception occasion.

Optionally, the set of SL opportunities M_AIs an ordered set. For example, the set of SL occasions M_AThe index of the first element (if any) of (a) is 0, the index of the second element (if any) is 1, the index of the third element (if any) is 2, and so on. Accordingly, the set of SL opportunities M may pass_AReferences an element in the set of SL opportunities M, respectively, e.g., by indices 0, 1, 2, etc_AFirst element (if any), second element (if any), third element (if any), etc.

Optionally, the set of SL opportunities M_AEach SL opportunity in the set corresponds to an SL opportunity cableAnd (3) introducing. Wherein the content of the first and second substances,

optionally, the set of SL occasions M_AIs unique (unique), i.e. the set of SL occasions M_AThe SL timings in (1) are respectively corresponding to different SL timing indexes.

Optionally, the set of SL occasions M_AThe value of the SL timing index for each SL timing may be 0, 1, … …,

one of them.

Optionally, the set of SL occasions M_AIs a SL opportunity index. Optionally, correspondingly, the set of SL opportunities M at this time_AAlso called "SL opportunity index set M_A”。

Optionally, the set of SL occasions M_AThe SL timing indices corresponding to the first element, the second element, … …, and the last element are 0, 1, … …,

optionally, the set of SL opportunities M_AEach element in (a) is a slot number (e.g., the number of the slot in which the corresponding SL opportunity is located).

Optionally, the set of SL opportunities M_ACorresponding multiplexing in time slot n_UHARQ-ACK information on one UL transmission in the set. Wherein the content of the first and second substances,

optionally, the set of SL occasions M_AOne HARQ-ACK information bit for each SL occasion. For example, SL opportunity index i corresponds to HARQ-ACK information bits

Optionally, the UL transmission is one PUCCH transmission.

Optionally, the UL transmission is a PUSCH transmission.

OptionallyThe set of SL occasions M_ACorresponding to the type-1 HARQ-ACK codebook.

Optionally, the set of SL occasions M_ACorresponding to the type-2 HARQ-ACK codebook.

Optionally, the dependency information includes: a set of slot timing values (a set of slot timing values), e.g. denoted as K₁. Wherein the content of the first and second substances,

optionally, the set K₁Is an ordered set. For example, the set K₁The index of the first element (if any) of (a) is 0, the index of the second element (if any) is 1, the index of the third element (if any) is 2, and so on. Accordingly, the set K can be passed₁References an element in the set, e.g., the set K₁The element with the middle index of K (or the value of the element) is marked as K_1，k。

Optionally, the set K₁May be determined by one or more of the following:

the parameter sl-PSFCH-ToPUCCH-CG-Typel.

E.g., a slot timing value (e.g., noted as

). Optionally, the number of type-1 SL configuration permissions configured for the UE is 0, and accordingly, the set

Is an empty set.

Further e.g., slot timing values (e.g., noted as separate) determined by the parameter SL-PSFCH-ToPUCCH-CG-Typel respectively corresponding to each configured type-1 SL configuration grant

Wherein

Is the number of type-1 SL configuration grants configured for the UE). Alternatively,

can be equal to 0, respectively, set

Is an empty set.

Set of slot timing values determined by parameter sl-PSFCH-ToPUCCH (e.g., noted as

)。

For example, K₁Is a set

And collections

The union of (a).

As another example, K₁Is a set

And collections

The union of (a).

As another example, a collection

Always set

A subset of (a).

At this time, K₁Is always equal to the set

As another example, a collection

Always set

A subset of (a).

At this time, K₁Is always equal to the set

As another example, K is determined in other ways₁。

Optionally, the dependency information includes: SCS configuration with a direct link (e.g., denoted as μ_SL) And uplink SCS configuration (e.g., denoted as μ_UL) Relative ratio of

And/or

Wherein the content of the first and second substances,

optionally, the μ_SLThe configuration can be performed by a parameter subanticrierspace, such as one or more of the following (in any combination in the manner of an "or"):

sl-BWP-ToAddModList in sl-BWP-Generic in sbbwP-Spacing.

sls-BWP-List in sl-BWP-Generic in sbcrarrierspacing.

sls-BWP-Generic in sl-BWP subanticreeSpacing.

Sls-subarrierspacing in BWP.

Sbarrierspace in BWP in SL-BWP-Generic in SL-BWP-Config.

Subcarrierspace in SL-BWP-Config.

Subcarrierspace in SL-BWP-Generic.

Sbarrierspace in BWP in SL-BWP-Generic in SL-BWP-ConfigCommon.

SubcarrirSpacing in SL-BWP-ConfigCommon.

SubcarriersSpacing in BWP-Sidelink.

Optionally, the μ_ULThe configuration can be performed by a parameter subanticrierspace, such as one or more of the following (in any combination in the manner of an "or"):

SubcarrirSpacing in genericParameters in initialUplinkBWP.

Subcarrierspace in initialUplinkBWP.

Bwp in uplinkBWP-ToAddModList-subcarierSpacing in genericParameters in Common.

Rubberriersspacing in uplinkBWP-ToAddModList.

Bwp-subcarrierspace in genericParameters in Common.

bwp-Subcarrierspace in Common.

Anda subarrierspacing in BWP-Uplink in BWP-uplinkCommon.

Sabcarrierspacing in BWP-Uplink.

Subcarrierspace in BWP-UplinkCommon.

Optionally, the dependency information includes: one or more configured for the UE (e.g., noted as N)_RPResource pool (e.g., respectively denoted as RP)₀，RP₁，...，

) Of the relevant parameters. For example, the N_RPA set formed by bitmaps (configured by parameters sl-TimeResource of the corresponding resource pools, for example) respectively corresponding to the resource pools is recorded as

As another example, the number N_RPA set formed by periods of the PSFCH resources (or periods of the PSFCH transmission opportunity resources, for example, configured by the parameter sl-PSFCH-Period of the corresponding resource pool) respectively corresponding to the resource pools, for example, is recorded as

Wherein the content of the first and second substances,

optionally, the N_RPOne resource pool is N configured for the UE_RPAnd (4) a resource pool.

Optionally, the N_RPEach resource pool includes only a transmission resource pool (TX pool, or TX pool).

Optionally, the N_RPEach resource pool includes only a receive resource pool (RX resource pool, or RX pool).

Optionally, the N_RPThe resource pools include a transmission resource pool and a reception resource pool.

Optionally, the N_RPThe resource pools include only the resource pool configured for the straight resource allocation pattern 1.

Optionally, the N_RPThe resource pools include only the resource pool configured for the straight resource allocation pattern 2.

Optionally, the N_RPThe resource pools include a resource pool configured for the straight resource allocation mode 1 and a resource pool configured for the straight resource allocation mode 2.

Optionally, the N_RPThe resource pools are part or all of the resource pools configured by the parameter sl-txpool scheduling. For example, the N_RPAnd each resource pool only comprises the resource pool with the PSFCH resource period which is not 0 in the resource pools configured by the parameter sl-TxPoolScheduling.

Optionally, the N_RPThe resource pools are all resource pools configured by the parameter sl-txpool scheduling.

Further, in step S103, the SL opportunity set M is determined based on the dependency information, and/or other information_A。

Optionally, the "determining the set of SL occasions M_A"comprises: and (5) initializing. For example, one or more of the following are performed:

initialize the next SL opportunity index to be assigned (e.g., denoted as j) to 0.

Set of SL opportunities M_AInitialTo an empty set (e.g. note as

)。

Optionally, the "determining the set of SL occasions M_A"comprises: determining a set of all slots satisfying a first SL reference slot condition (referred to as SL reference slots)

Wherein the content of the first and second substances,

optionally, the set may be written as

Optionally, the first SL reference slot condition comprises one or more of the following (in any combination of and or, where applicable):

·

·

·

the first BWP modification condition is not satisfied. Wherein the content of the first and second substances,

optionally, the first BWP modification condition is one or more of the following (in any combination of and or, where applicable):

o slot n_UStart time and time slot of

The same is true.

O slot n_UAt the time slot

And then.

O slot

In a time slot

Before.

O slot n_UAt the time slot

Before.

O slot n_UEnd time and time slot of

The same is true.

O slot n_UIn time slots

And then.

O slot n_UIn time slots

Before.

O slot

In a time slot

And then.

O slot

And time slot

The same is true.

O slot

Start time and time slot of

The same is true.

O slot

At the time slot

And then.

O slot

At the time slot

Before.

O slot

End time and time slot of

The same is true.

O slot

In time slots

And then.

O slot

In time slots

Before.

Wherein, optionally, the time slot

Is a slot for (or in which) an active UL BWP change (active UL BWP change) occurs. Wherein the content of the first and second substances,

optionally, the active UL BWP change occurs on PCell.

Optionally, the active UL BWP change occurs at transmission of the set of SL occasions M_AAnd the corresponding HARQ-ACK information is transmitted to the corresponding cell.

Optionally, the active UL BWP change occurs on a cell corresponding to the corresponding SL and/or UL configuration information in embodiment one of the present invention.

Optionally, the active UL BWP change occurs on any one serving cell.

Optionally, the cell in which the active UL BWP change occurs may be determined in other ways.

For example, the "determining a set of all slots satisfying the first SL reference slot condition

"the procedure can be illustrated in pseudo-code as follows:

optionally, the "determining the set of SL occasions M_A"comprises: for each SL reference time slot

Determining

An SL opportunity, and the

Adding SL occasions (or their respectively corresponding SL occasion indexes) to the SL occasionsSet M_A. Wherein the content of the first and second substances,

optionally, from a set of reference resource pools { RP_refDetermining said

SL opportunities. Wherein the set of reference resource pools { RP_refBy said N_RPAll resource pools of the individual resource pools that satisfy the first resource pool condition. Wherein the content of the first and second substances,

optionally, the first resource pool condition may be "unconditional", i.e. the first resource pool condition may always be satisfied.

Optionally, the first resource pool condition comprises one or more of the following (in any combination of and or, where applicable):

omicron the SL reference time slots

Belong to a resource pool RP_ref. Wherein the content of the first and second substances,

o optionally according to the resource pool RP_refConfigured resource pool bitmap (e.g., configured via parameter SL-TimeResource), and/or TDD configuration information (e.g., configured via parameter TDD-UL-DL-configuration common), and/or other information, determining the SL reference slot

Whether it belongs to the resource pool RP_ref。

Omicron the SL reference time slots

Is the resource pool RP_refOne PSFCH slot. Wherein the content of the first and second substances,

o optionally according to the resource pool RP_refDetermining the resource pool RP according to the configured PSFCH Period information (for example, configured through the parameter sl-PSFCH-Period) and the like_refThe SL reference slots of

Whether to include PSFCH resources (or the SL reference slot)

Whether or not to include the resource pool RP_refPSFCH resources in).

O optionally, "the SL reference time slot

Is the resource pool RP_refMay also be expressed as "the SL reference slot

Including (or otherwise configuring) the resource pool RP_refOr, expressed as "the resource pool RP", or_refThe SL reference slots of

Contains (or is configured with) PSFCH resources, or, in the case of context clarity, is expressed as "the SL reference slot

Contains (or is configured with) PSFCH resources.

Optionally, if no resource pool satisfies the first resource pool condition, the set of reference resource pools { RP_refThe is an empty set.

Optionally, said

Equal to one of the following:

omicron the set of reference resource pools { RP_refMaximum value of the configured PSFCH periods of all reference resource pools in the system.

Omicron the set of reference resource pools { RP_refThe sum of the configured PSFCH periods of all reference resource pools in the pool.

Omicron the SL reference time slots

Set { RP) in the reference resource pool_refEach of which refers to the base of the union of the corresponding psch slots in the resource pool.

For example, if the reference resource pool set [ RP ]_refThere are two resource pools: RP₀And RP₁The SL reference slot

(as one PSFCH slot) in the resource pool RP₀Associated

One PSSCH slot in resource pool RP₁Associated

A PSSCH slot, and

a PSSCH slot and

if 2 PSSCH slots are overlapped, then

For example, in the above-described schematic "determining a set of all slots satisfying the first SL reference slot condition

"in pseudo code" [ execution is based on SL reference slots

Operation of]"including" determination

An SL opportunity "and"Will be described in

Adding SL occasions (or their respectively corresponding SL occasion indexes) to the set M of SL occasions_A", wherein,

"determination of

The SL opportunities "can be illustrated in pseudo-code as follows:

or "determine

The SL opportunities "can be illustrated in pseudo-code as follows:

"will be described

Adding SL occasions (or their respectively corresponding SL occasion indexes) to the set M of SL occasions_A"can be illustrated in pseudo-code as follows (where M is_A＝M_AU.j can be replaced by M_A＝M_A∪{j})：

Alternatively, in the first embodiment of the present invention, as not specifically illustrated, the SL time set M_ARefer to the "finalized set of SL opportunities M_A". For example, the "SL opportunity set M" mentioned in step S101 of the first embodiment of the present invention_A", refers to the set of SL opportunities M that is ultimately determined after execution of step S103 of embodiment one of the present invention_A. In contrast, in step S103 of the first embodiment of the present invention, the SL time set M is determined_AFor the set of SL occasions M_ACan be considered to apply to a temporary (inter) set of SL occasions M_AThe above.

Optionally, in the first embodiment of the present invention, "mod" is a complementation operation, or a complementation function, or a modulo operation, or a modulo function.

Optionally, in the first embodiment of the present invention, "max" is a maximum operation, or a maximum function.

Optionally, in the first embodiment of the present invention, the determining

An SL opportunity may also be referred to as a determination

SL opportunity index ".

Optionally, in the first embodiment of the present invention, the determining

Multiple SL occasions may also be referred to as "generation

SL opportunities ".

Optionally, in the first embodiment of the present invention, the determining

Multiple SL occasions may also be referred to as "generation

A SL opportunityIndex ".

Optionally, in the first embodiment of the present invention, the index of one SL opportunity may also be referred to as the number of the SL opportunity.

Optionally, in the first embodiment of the present invention, the parameter sl-PSFCH-tocpucch may be replaced with the parameter sl-FeedbackToUL-ACK.

Optionally, in the first embodiment of the present invention, the parameter sl-PSFCH-tocucch-CG-type may be replaced by the parameter sl-ackkoul-ACK.

Optionally, in the first embodiment of the present invention, the "PSCCH transmission" may be replaced with "PSCCH and/or PSCCH transmission".

Alternatively, embodiment one of the present invention may be applied to an SLBWP in a serving cell (e.g., PCell, also like PSCell, also like SpCell, also like SCell, also like other serving cells).

Alternatively, the first embodiment of the present invention may be applied to an UL BWP (e.g. active UL BWP) in a serving cell (e.g. PCell, also like PSCell, also like SpCell, also like SCell, also like other serving cells).

Thus, according to the first embodiment, the present invention provides a method, when generating a HARQ-ACK codebook (e.g., a semi-static HARQ-ACK codebook), traversing configuration information of all configured resource pools to determine one or more resource pools using the same SL reference slot as a PSFCH slot, and determining the number of SL occasions (e.g., psch transmission occasions) to be generated according to corresponding one or more PSFCH periods, so as to avoid the problem that the size of the HARQ-ACK codebook cannot accommodate HARQ-ACK bits corresponding to all possible actual psch transmissions under the condition that multiple resource pools are configured.

[ modified examples ]

As a modification, a user equipment capable of executing the method performed by the user equipment described in detail above of the present invention is explained below with reference to fig. 2.

Fig. 2 is a block diagram showing a user equipment UE according to the present invention.

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 (e.g., random access memory RAM), a Hard Disk Drive (HDD), non-volatile memory (e.g., flash memory), or other memory, among others. The memory 202 has stored thereon program instructions. Which when executed by the processor 201 may perform the above-described method performed by the user equipment as described in detail in the present invention.

The method of the invention and the apparatus involved have been described above in connection with preferred embodiments. It will be appreciated by those skilled in the art that the above illustrated approaches are exemplary only, and that the various embodiments described above can be combined with each other without conflict. The method of the present invention is not limited to the steps or sequence shown above. The network nodes and user equipment shown above may comprise further modules, e.g. modules that may be developed or developed in the future, available for a base station, AMF, UPF, MME, S-GW or UE, etc. The various identifiers shown above are exemplary only and not limiting, and the invention is not limited to the specific information elements that are examples of these identifiers. Many variations and modifications may occur to those skilled in the art in light of the teachings of the illustrated embodiments. It will be understood by those skilled in the art that some or all of the mathematical expressions or mathematical equations or mathematical inequalities may be simplified or transformed or rewritten to some extent, such as by combining constant terms, exchanging two additive terms, exchanging two multiplicative terms, shifting a term from the left to the right of an equation or inequality after changing the sign, shifting a term from the right to the left of an equation or inequality after changing the sign, and so on; simplifying or transforming or rewriting the mathematical expressions or mathematical equations or mathematical inequalities before and after may be considered equivalent.

It should be understood that the above-described embodiments of the present invention can be implemented by software, hardware, or a combination of both software and hardware. For example, various components within the base station and the user equipment in the above embodiments may be implemented by various means, including but not limited to: analog circuit devices, Digital Signal Processing (DSP) circuits, programmable processors, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), programmable logic devices (CPLDs), and the like.

In the present invention, a "base station" may refer to a mobile communication data and/or control switching center having a certain transmission power and a certain coverage area, and for example, includes functions of resource allocation scheduling, data receiving and sending, and the like. "user equipment" may refer to a user mobile terminal, including, for example, a mobile phone, a notebook, etc., which may wirelessly communicate with a base station or a micro base station.

Furthermore, embodiments of the invention disclosed herein may be implemented on a computer program product. More specifically, the computer program product is one of the following: there is a computer readable medium having computer program logic encoded thereon that, when executed on a computing device, provides related operations for implementing the above-described aspects of the present invention. When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in embodiments of the present invention. Such arrangements of the invention are typically provided as downloadable software images, shared databases, etc. arranged or encoded in software, code and/or other data structures on a computer readable medium such as an optical medium (e.g., CD-ROM), floppy or hard disk or other medium such as firmware or microcode on one or more ROM or RAM or PROM chips or in one or more modules. The software or firmware or such configurations may be installed on a computing device to cause one or more processors in the computing device to perform the techniques described in embodiments of the present invention.

Further, each functional block or respective 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 typically one or more integrated circuits. Circuitry designed to perform the various functions described in this specification may include a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC) or a general purpose integrated circuit, a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components, or any combination thereof. 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 a digital circuit, or may be configured by a logic circuit. Further, when advanced technology capable of replacing the current integrated circuit is developed due to the advancement of semiconductor technology, the present invention can also use the integrated circuit obtained by the advanced technology.

Although the present invention has been described in conjunction with the preferred embodiments thereof, it will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention. Accordingly, the present invention should not be limited by the above-described embodiments, but should be defined by the appended claims and their equivalents.

Claims

1. A method performed by a user equipment, UE, comprising:

determining a set of all resource pools satisfying a first resource pool condition based on a SL reference slot satisfying a HARQ-ACK timing configuration from PSFCH to PUCCH, and

determining from the set of resource pools

A PSSCH transmission opportunity, an

Will be described in

2. The method of claim 1,

if the SL reference time slot belongs to a resource pool RP_refAnd is and

the SL reference slot contains theResource pool RP_refPSFCH resource of

The resource pool RP_refThe first resource pool condition is satisfied.

3. The method of claim 1,

the above-mentioned

4. A user equipment, comprising:

a processor; and

a memory having stored therein instructions that, when executed,

wherein the instructions, when executed by the processor, perform the method of any of claims 1-3.