Method executed by user equipment, and user equipment

Abstract

The present disclosure provides a method executed by a user equipment (UE). The method comprises: receiving one UE capability query message from a base station, and transmitting one UE capability information message to the base station, wherein the UE capability information message comprises one of a first PSCCH receiving capability and a second PSCCH receiving capability; the first PSCCH receiving capability indicates that the number of PSCCHs that can be received within one time slot is one of (1) and (2); (3) represents a maximum transmission bandwidth configuration corresponding to a corresponding UE channel bandwidth in a sidelink single carrier operation; the second PSCCH receiving capability indicates that the number of PSCCHs that can be received within one time slot is one of (4), (5), (6) and (7); and (8) represents a maximum transmission bandwidth configuration corresponding to a predefined UE channel bandwidth.

Description

Method performed by user equipment and user equipment Technical Field

[0001] The present disclosure relates to a method performed by a user equipment and the user equipment. Background Art

[0002] In a wireless communication system, information can be exchanged between different communication nodes. Wireless communication can be carried out on licensed spectrum and / or unlicensed spectrum. An example of a wireless communication system is a system standardized by 3GPP (3rd Generation Partnership Project), such as a 4G system or its evolved system based on LTE (Long-Term Evolution) wireless access technology, or a 5G system or its evolved system based on NR (New Radio) wireless access technology. In a communication system based on 3GPP specifications, examples of communication nodes may include UE (User Equipment) and base stations (such as eNB, also such as gNB). The radio link (radio link) from the base station to the UE can be called a downlink (DL), the radio link from the UE to the base station can be called an uplink (UL), and the radio link between UEs can be called a sidelink (SL). The interface for wireless transmission and / or reception between the base station and the UE can be called a Uu interface (such as the NR-Uu interface based on NR; such as the LTE-Uu interface based on LTE). The interface for wireless transmission and / or reception between UEs may be referred to as a PC5 interface (e.g., an NR-PC5 interface based on NR; or an LTE-PC5 interface based on LTE). The UE may transmit or receive in one or more BWPs (Bandwidth Parts) in each of one or more carriers, where each carrier may be an uplink carrier, a downlink carrier, or a sidecar carrier.

[0003] In order to support communications on licensed spectrum and / or unlicensed spectrum, a series of issues need to be addressed, such as channel access mechanism; the structure of physical layer channels and / or signals; physical layer control information and / or signaling processes (such as synchronization processes, feedback and / or determination mechanisms); higher-layer control information and / or signaling processes; resource allocation and / or management; and coexistence between different systems.

[0004] Prior art literature

[0005] Non-patent literature

[0006] Non-Patent Document 1: RP-170379, Revision of SI: Study on New Radio Access Technology, 3GPP TSG RAN Meeting #75

[0007] Non-Patent Document 2: RP-191971, Revised WID: New Radio Access Technology, 3GPP TSG RAN Meeting #85

[0008] Non-Patent Document 3: RP-190224, Revised SID: Study on NR V2X, 3GPP TSG RAN Meeting #83

[0009] Non-Patent Document 4: RP-200129, Revised WID on 5G V2X with NR sidelink, 3GPP TSG RAN Meeting #87-e

[0010] Non-Patent Document 5: RP-202846, Revised WID on NR Sidelink Enhancement, 3GPP TSG RAN Meeting #90-e

[0011] Non-Patent Document 6: RP-222806, Revised WID: NR sidelink evolution, 3GPP TSG RAN Meeting #98-e

[0012] Summary of the Invention

[0013] In order to solve at least part of the above problems, the present disclosure provides a method performed by a user equipment and a user equipment, wherein, when reporting UE capability information related to sidelink operations, the UE can report different PSCCH decoding capabilities for the sidelink single carrier case and the sidelink carrier aggregation case, or for the operation based on interleaved RBs and the operation based on continuous RBs, or for the operation on the authorized spectrum and the operation on the unlicensed spectrum, thereby reducing the implementation complexity of the UE when supporting different sidelink operations.

[0014] According to the present disclosure, a method performed by a user equipment is proposed, characterized by comprising: receiving a UE capability query message from a base station, and transmitting a UE capability information message to the base station, wherein the UE capability information message includes one of a first PSCCH receiving capability and a second PSCCH receiving capability, wherein the first PSCCH receiving capability indicates the number of PSCCHs that can be received in a time slot. and one of which is the maximum transmission bandwidth configuration corresponding to the corresponding UE channel bandwidth in the sideline single carrier operation, and the second PSCCH reception capability indicates the number of PSCCHs that can be received in one time slot. as well as one of which It is a predefined maximum transmission bandwidth configuration corresponding to the UE channel bandwidth.

[0015] In addition, according to the present disclosure, a user equipment is proposed, including: a processor; and a memory storing instructions, wherein the instructions execute the above method when executed by the processor.

[0016] Therefore, the present disclosure provides a method, in which, when reporting UE capability information related to sidelink operations, the UE can report different PSCCH decoding capabilities for the sidelink single carrier case and the sidelink carrier aggregation case, or for the operation based on interleaved RBs and the operation based on continuous RBs, or for the operation on the authorized spectrum and the operation on the unlicensed spectrum, thereby reducing the implementation complexity of the UE when supporting different sidelink operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0018] FIG1 shows a flowchart corresponding to a method executed by a user equipment according to the first embodiment of the present disclosure.

[0019] FIG2 shows a block diagram of a user equipment involved in the present disclosure. DETAILED DESCRIPTION

[0020] The present disclosure is described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the present disclosure is not limited to the specific embodiments described below. In addition, for the sake of simplicity, detailed descriptions of known technologies that are not directly related to the present disclosure are omitted to prevent confusion in understanding the present disclosure.

[0021] The following describes multiple implementations of the present disclosure using the 5G (or NR, or 5G NR) wireless communication system specifications developed by 3GPP and their subsequent evolutionary versions (e.g., 5G Advanced) as example application environments. However, it should be noted that the present disclosure is not limited to the following implementations, but is applicable to many other wireless communication systems, such as wireless communication systems after 5G, and 4G mobile communication systems before 5G, such as LTE (Long Term Evolution), LTE-Advanced, and LTE-Advanced Pro.

[0022] The terms given in this disclosure may be named differently in different wireless communication systems, but unified terms are used in this disclosure, and when applied to a specific system, they can be replaced with terms used in the corresponding system.

[0023] In all embodiments and implementations of the present disclosure, unless otherwise specified:

[0024] ●“Node” and “communication node” are interchangeable.

[0025] ●“Node” may refer to a UE, or a network node (such as a base station), or a communication node in another form.

[0026] ●“Base station” may refer to a 4G base station, such as an eNB (E-UTRAN Node B, where E-UTRAN stands for Evolved Universal Terrestrial Radio Access Network); or a 5G base station, such as a gNB (a node that provides NR user plane and control plane protocol termination to the UE and is connected to the 5G core network through the NG interface), or an ng-eNB (a node that provides E-UTRA user plane and control plane protocol termination to the UE and is connected to the 5G core network through the NG interface, where E-UTRA stands for Evolved Universal Terrestrial Radio Access); or a base station of other forms.

[0027] ●“band” can refer to “frequency band” (frequency band, or “frequency band”).

[0028] ●“Higher layer(s)” (or upper layer(s)) may refer to one or more protocol layers or protocol sublayers above a reference protocol layer or reference protocol sublayer in a specific protocol stack (e.g., access stratum protocol stack). For example, if the reference protocol layer or reference protocol sublayer is the physical layer (or referred to as “Layer 1”), the “higher layer” may refer to the MAC (Medium Access Control) layer, and / or the RLC (Radio Link Control) layer, and / or the PDCP (Packet Data Convergence Protocol) layer, and / or the PC5-RRC (Radio Resource Control) layer, and / or the PC5-S layer, and / or the RRC layer, and / or other protocol layers or protocol sublayers. Unless otherwise specified, the reference protocol layer or reference protocol sublayer is the physical layer. Where there is no ambiguity, the “higher layer” may also be referred to as the “upper layer”.

[0029] ● "Lower layer(s)" may refer to one or more protocol layers or protocol sublayers below a reference protocol layer or reference protocol sublayer in a specific protocol stack. For example, if the reference protocol layer or reference protocol sublayer is the RRC layer, the "lower layer" may refer to the MAC layer and / or the physical layer; for another example, if the reference protocol layer or reference protocol sublayer is the MAC layer, the "lower layer" may refer to the physical layer. Unless otherwise specified, the reference protocol layer or reference protocol sublayer is the MAC layer. Where there is no ambiguity, the "lower layer" may also be referred to as the "lower layer."

[0030] ● “Signaling” can refer to signaling at the physical layer or signaling at higher layers.

[0031] ● “Configure” may refer to a protocol layer (eg, RRC layer) entity providing configuration information to another protocol layer (eg, physical layer) entity in a communication node (eg, UE).

[0032] ●“Configuration” may refer to a protocol layer (e.g., RRC layer) entity of a communication node (e.g., a base station) providing configuration information to a peer protocol layer entity of another communication node (e.g., a UE) (e.g., transmitting RRC signaling from a base station to a UE, which includes the configuration information; or transmitting PC5-RRC signaling from one UE to another UE, which includes the configuration information).

[0033] ● “Pre-configure” may refer to pre-setting corresponding configuration information in a specific storage location in a communication node (eg, UE), or pre-setting corresponding configuration information in a specific storage location accessible to the UE.

[0034] ● "(Pre)configuration" can mean configuration or pre-configuration.

[0035] • “Parameter” may refer to a physical layer parameter, or a higher layer parameter, e.g. a parameter (pre-)configured at the RRC layer.

[0036] ● “Number” may refer to “total number”. For example, “the number of subchannels in a resource pool” may refer to the total number of subchannels in the resource pool.

[0037] ●The elements in a set (or a sequence) can be indexed 0, 1, 2, ... in the order in which they appear, or 1, 2, 3, ... in the order in which they appear. For example, the set {t0, t1, ..., t N-1}, and t N-1 They may correspond to indexes 0, 1, ..., and N-1 respectively.

[0038] ●A time series (e.g., t0, t1, ..., t N-1 ) or a corresponding set (e.g. {t0, t1, ..., t N-1 The elements in t0 may appear in chronological order, for example, the time corresponding to t0 is earlier than (or no later than) the time corresponding to t1, the time corresponding to t1 is earlier than (or no later than) the time corresponding to t2, and so on.

[0039] Δf may represent the subcarrier spacing (SCS) of a carrier (e.g., a DL carrier; another example, a UL carrier; another example, a SL carrier) or a BWP (e.g., a DL BWP; another example, a UL BWP; another example, a SL BWP). For example, Δt = 15 kHz; another example, Δf = 30 kHz; another example, Δf = 60 kHz; another example, Δf = 120 kHz.

[0040] μ can represent the SCS configuration corresponding to an SCS. For example, μ = 0 corresponds to Δf = 15 kHz; μ = 1 corresponds to Δf = 30 kHz; μ = 2 corresponds to Δf = 60 kHz; and μ = 3 corresponds to Δf = 120 kHz.

[0041] ●“Symbol” may refer to an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0042] A resource can correspond to one or more of the following:

[0043] ■ One or more parameters in the time domain, such as the starting symbol of the resource, the starting time slot of the resource, the number of symbols occupied by the resource, or the number of time slots occupied by the resource.

[0044] ■ One or more parameters in the frequency domain. For example, the starting subchannel of the resource; another example, the starting RB (resource block) of the resource; another example, the starting subcarrier of the resource; another example, the number of subchannels occupied by the resource; another example, the number of RBs occupied by the resource; another example, the number of subcarriers occupied by the resource.

[0045] ■ One or more parameters in the code domain, for example, a cyclic shift value or a corresponding cyclic shift index corresponding to the resource; or a cyclic shift pair value or a corresponding cyclic shift pair index corresponding to the resource.

[0046] ■ One or more parameters in the spatial domain. For example, the layer corresponding to the resource, where a "layer" may refer to a MIMO (Multiple Input Multiple Output) layer.

[0047] A "layer" may refer to one of one or more layers to which a TB (Transport Block) is mapped in spatial multiplexing. The mapping may also be considered as mapping the codeword corresponding to the TB to the one or more layers.

[0048] ●“RB” can refer to PRB (physical resource block), or VRB (virtual resource block), or CRB (common resource block), or IRB (Interlaced Resource Block); accordingly, “RB index” can refer to PRB index, or VRB index, or CRB index, or IRB index.

[0049] ● “Number” and “index” are interchangeable. For example, the number of an RB can also be called the index of the RB. For another example, “numbering an RB to 0” can also be expressed as “indexing an RB to 0”.

[0050] ● An element in a sequence (or array, or list, or set, etc.) can be represented by its index. For example, an RB with index 0 can be called "RB 0".

[0051] ●The index of an object (e.g., a subcarrier, a time slot, a cyclic shift, etc.) (e.g., the index of the object in a sequence, an array, a list, or a set) can be used as the "identifier" (ID) of the object.

[0052] ● In signaling, the object can be indicated by an object index.

[0053] If no quantity is specified when referring to an object, the number of the object may be one or more. For example, in "perform transmission on a channel", the "transmission(s)" may correspond to one transmission or multiple transmissions.

[0054] ●Δ(x1, x2) can represent the offset between x1 and x2 (or, “offset of x2 with respect to x1”; or, “offset from x1 to x2”), where x1 and x2 can be the values ​​of two comparable parameters (or variables), or can be two possible values ​​of a parameter (or variable). For example, if x1 and x2 are two time slots in a resource pool, Δ(x1, x2) can be defined as the difference between the time slot index corresponding to the time slot x2 and the time slot index corresponding to the time slot x1, where the time slot index can be a physical time slot index or a logical time slot index (for example, the index of the corresponding time slot in the time slot set of the resource pool).

[0055] • The offset between two subcarriers may refer to the offset between the center frequencies of the two subcarriers.

[0056] Modulo Operation can be defined as r≡a mod N, where

[0057] ■r is the remainder.

[0058] ■a=N×q+r,where q can be called the integer quotient of a and N.

[0059] ■0≤r<|N|.

[0060] The rounding operation can be expressed as b=round(a), where b can be defined as the integer closest to a. If there are two integers closest to a, b can be defined as the larger of the two integers, or as the smaller of the two integers.

[0061] ●A "physical time slot" may refer to a time slot belonging to a physical time slot set, where the physical time slot set may be all time slots in a continuous period of time (for example, a frame period with a duration of 1024 frames); the physical time slots in the physical time slot set may be indexed in chronological order as 0, 1, ...

[0062] ●In the time domain, a "frame" (or "radio frame") can refer to a system frame (the corresponding frame number can be called a system frame number, SFN) or a direct frame (the corresponding frame number can be called a direct frame number, DFN). A frame period (for example, denoted as T FNP ) may correspond to a predefined or (pre)configured parameter, or may be determined based on one or more predefined or (pre)configured parameters, for example, T FNP = 1024 frames. Accordingly, the 1024 frames in the frame period can be indexed as 0, 1, ..., 1023 in chronological order. The frame period based on the system frame can be called an "SFN cycle" (SFN cycle), and the frame period based on the direct frame can be called a "DFN cycle" (DFN cycle). The duration of each frame can be T f = 10 milliseconds, which can contain 10 subframes, where the duration of each subframe is T sf = 1 millisecond. Each subframe can contain time slots, for example, The index of a time slot in a subframe can be recorded as The index of a time slot in a frame can be recorded as in, Can be equal to 10·2 μ The time slot index in a frame period can be recorded as in Can be equal to (For example, 1024·(10·2 μ )).

[0063] The rounding operation can be expressed as b=round(a), where b can be defined as the integer closest to a. If there are two integers closest to a, b can be defined as the larger of the two integers, or as the smaller of the two integers.

[0064] ● A bit string (e.g., 'b0b1...b L-1 '), the leftmost bit (ie, b0) can correspond to the most significant bit, and accordingly, the rightmost bit (ie, b L-1 ) may correspond to the least significant bit.

[0065] ● A bit string of size (or "length") L bits (e.g., 'b0b1...b L-1 '), the leftmost bit (ie, b0) may correspond to the least significant bit, and accordingly, the rightmost bit (ie, b L-1 ) can correspond to the most significant bit.

[0066] ●“Sidewalk” can refer to NR sidewalk or LTE sidewalk.

[0067] "NR sideline" may refer to part or all of the NR sideline functions, including NR sideline communication, NR sideline discovery, and NR sideline positioning. For example, "NR sideline reception" may include reception for NR sideline communication; another example, "NR sideline transmission" may include transmission for NR sideline communication; another example, "NR sideline measurement" may include measurement for NR sideline communication.

[0068] ●“NR sideline operation” may refer to operations including part or all of NR sideline reception, NR sideline transmission, and NR sideline measurement.

[0069] ●“Carrier” can refer to a sidecarrier, an uplink carrier, or a downlink carrier.

[0070] ● "Bandwidth segment" can refer to a sidelink bandwidth segment, an upstream bandwidth segment, or a downstream bandwidth segment.

[0071] ●“Resource pool” may refer to the sideline resource pool.

[0072] ●A "sidelink resource" may refer to a resource that can be used for sidelink transmission, for example, a time-frequency resource, wherein the time-frequency resource may correspond to one or more symbols (or, one or more time slots) in the time domain and may correspond to one or more subchannels (or, one or more resource blocks; or, one or more subcarriers) in the frequency domain.

[0073] A "sidelink timeslot" may refer to a timeslot configured with sidelink resources (e.g., a timeslot in a resource pool). The "sidelink resources" may or may not include resources for specific purposes, where the "resources for specific purposes" may be resources used for synchronization procedures, such as resources used to transmit S-SS / PSBCH (S-SS / Physical Sidelink Broadcast CHannel, or Sidelink-Synchronization Signal / Physical Sidelink Broadcast CHannel) blocks.

[0074] ●A "logical time slot" may refer to a time slot in a time slot set belonging to a resource pool, wherein the time slot set may be all time slots belonging to the resource pool in a continuous period of time (for example, a frame period with a duration of 1024 frames); the logical time slots in the time slot set may be indexed in chronological order as 0, 1, ...

[0075] ●A "logical time slot" may refer to a time slot that can be configured as a set of time slots belonging to a resource pool.

[0076] ●A "sideways time slot" may refer to a time slot in a set of time slots belonging to a resource pool.

[0077] A "sideways timeslot" may refer to a timeslot that may be configured as a set of timeslots belonging to a resource pool.

[0078] ●A "sidelink transmission" may correspond to the transmission of a physical channel used for sidelink, for example, the physical channel may be PSCCH (Physical Sidelink Control Channel), or PSSCH (Physical Sidelink Shared Channel), or PSFCH (Physical Sidelink Feedback Channel), or PSBCH (Physical Sidelink Broadcast Channel), or other physical channels.

[0079] ●A "sidelink transmission" may correspond to the transmission of a physical signal for sidelink, for example, the physical signal may be S-PSS (Sidelink primary synchronization signal), or S-SSS (Sidelink secondary synchronization signal), or DMRS (or "DM-RS", Demodulation reference signals), or CSI RS (or "CSI-RS", Channel-state information reference signal), or PT RS (or "PT-RS", Phase-tracking reference signals), or other physical signals.

[0080] ●A "sideline transmission" may correspond to the transmission of more than one physical channel or physical signal multiplexed (eg, time division multiplexing; or frequency division multiplexing; or multiplexed in other ways) in the same sideline resource (eg, the same time slot). For example, an "S-SS / PSBCH block transmission" (or called an "S-SSB transmission") can correspond to the transmission of an S-PSS, an S-SSS, and a PSBCH multiplexed in the same time slot, and the corresponding resource multiplexing pattern can be recorded as "S-PSS / S-SSS / PSBCH"; a "PSCCH / PSSCH transmission" (or called a "PSSCH / PSCCH transmission") can correspond to the transmission of a PSCCH and an associated PSSCH multiplexed in the same time slot, and the corresponding resource multiplexing pattern can be recorded as "PSCCH / PSSCH" (or called "PSSCH / PSCCH"); a "PSCCH / SL PRS transmission" (or called a "SL PRS / PSCCH transmission") can correspond to the transmission of a PSCCH and an associated SL PRS multiplexed in the same time slot, and the corresponding resource multiplexing pattern can be recorded as "PSCCH / SL PRS"; a "PSCCH / PSSCH / SL A PRS transmission (or a "PSSCH / PSCCH / SL PRS transmission") may correspond to the transmission of a PSCCH, a PSSCH associated with the PSCCH, and an SL PRS associated with the PSCCH multiplexed in the same time slot, and the corresponding resource multiplexing mode may be recorded as "PSCCH / PSSCH / SL PRS" (or "PSSCH / PSCCH / SLPRS").

[0081] ● Sidelink Control Information (SCI) carried in a sidelink transmission (eg, PSCCH; or PSSCH; or PSCCH / PSSCH) may correspond to “one SCI”, where the SCI may refer to the first-stage SCI (1 st -stage SCI), or second-stage SCI (2 nd -stage SCI), or the first-stage SCI and its associated second-stage SCI.

[0082] ● An SCI with a corresponding SCI format X carried in a sidelink transmission (eg, PSCCH; or PSSCH; or PSCCH / PSSCH) may be referred to as "an SCI format X." For example, a UE may receive an SCI format 1-A in a time slot.

[0083] ●A sidelink grant can be a sidelink dynamic grant, a sidelink configured grant, or any other form of sidelink grant.

[0084] ●A "sidelink configured grant" can be a "type 1 sidelink configured grant", or a "type 2 sidelink configured grant", or any other form of sidelink configured grant.

[0085] ●The “release” operation on a side travel configuration permission may also be referred to as the “deactivation” operation on the side travel configuration permission.

[0086] ●“Dynamic sidelink grant” and “dynamic sidelink grant” are interchangeable.

[0087] ●“Sidelink configuration grant” and “configured sidelink grant” are interchangeable.

[0088] ●“Type 1 sidelink configuration grant” and “sidelink configured grant type 1” are interchangeable.

[0089] ● “Type 2 sidelink configuration grant” and “sidelink configured grant type 2” are interchangeable.

[0090] ●A "sidelink identity" (sidelink ID) can refer to a layer 1 sidelink identifier or a layer 2 sidelink identifier.

[0091] A "destination ID" may refer to a sidelink identifier. For example, a destination ID indicated in a multicast transmission may be used to identify a group corresponding to the multicast transmission; another example, a destination ID indicated in a broadcast transmission may be used to identify a service corresponding to the broadcast transmission; another example, a destination ID indicated in a unicast transmission may be used to identify the intended receiving UE of the unicast transmission (e.g., the destination ID may be a source identifier of the intended receiving UE).

[0092] A source ID may be a sidelink identifier. For example, a source ID indicated in a unicast (or multicast, or broadcast) transmission may be used to identify the UE that performs the transmission.

[0093] A priority level can be associated with a priority value. For example, one priority level can be associated with a priority value of 0, while another priority level can be associated with a priority value of 1.

[0094] A priority level may correspond to a priority value in one or more protocol layers (or protocol sublayers), wherein the corresponding priority values ​​in different protocol layers (or protocol sublayers) may be equal or different. For example, one priority level may correspond to a priority value of 0 at the physical layer and a priority value of 1 at a higher layer; another priority level may correspond to a priority value of 1 at the physical layer and a priority value of 2 at a higher layer.

[0095] The relationship between the priority order and the corresponding priority value may be such that as the priority value increases, the priority (or "priority order") decreases. For example, if the priority values ​​corresponding to the priorities associated with a first side transmission and a second side transmission are 0 and 1, respectively, the priority of the first side transmission is higher than the priority of the second side transmission.

[0096] The relationship between the priority order and the corresponding priority value may be such that as the priority value increases, the priority (or "priority order") increases. For example, if the priority values ​​corresponding to the priorities associated with the first side transmission and the second side transmission are 0 and 1, respectively, the priority of the first side transmission is lower than the priority of the second side transmission.

[0097] 5G can operate in both licensed spectrum, such as band n78 (3300MHz-3800MHz), and unlicensed spectrum, such as band n46 (5150MHz-5925MHz).

[0098] For unlicensed spectrum, a 5G-enabled node can perform "operation with shared spectrum channel access", for example, perform a "channel access procedure" on a "shared-spectrum channel", or perform a "multi-channel access procedure" on multiple shared spectrum channels to evaluate whether part or all of the corresponding one or more shared spectrum channels can be used to perform one or more transmissions (for example, downlink transmission, uplink transmission, or side transmission), where a shared spectrum channel can contain several contiguous RBs. The result of a channel access procedure can be "success" (or "channel access success") or "failure" (or "channel access failure"). The operation of evaluating whether one or more shared spectrum channels can be used to perform one or more transmissions can be called CCA (Clear Channel Assessment). This mechanism of performing CCA before using one or more shared spectrum channels can be called LBT (Listen Before Talk). Accordingly, each of the one or more shared spectrum channels can be called an "LBT channel". Accordingly, "channel access success" can be called "LBT success" and "channel access failure" can be called "LBT failure". Whether a communication node needs to perform CCA (or "whether LBT needs to be performed") and the specific process of CCA may be related to the regulations of the country and / or region where the communication node is located.

[0099] In contrast, operations that do not require channel access on a shared spectrum (eg, operations on a licensed spectrum) may be referred to as "operations without shared spectrum channel access."

[0100] For "operations with shared spectrum channel access", a shared spectrum channel can correspond to a carrier, or a part of the carrier. For example, the UE channel bandwidth corresponding to a carrier c1 can be 20MHz, and accordingly, a shared spectrum channel can correspond to the carrier c1. For another example, the UE channel bandwidth of a carrier c2 is 40MHz, and accordingly, one shared spectrum channel can correspond to the lower 20MHz of the carrier c2, and another shared spectrum channel can correspond to the other 20MHz (i.e., the higher 20MHz) of the carrier c2. Operations (for example, transmission; for example, reception; for example, measurement) on the carrier c2 (or other carriers whose corresponding UE channel bandwidth is greater than 20MHz) can be referred to as "wideband operations".

[0101] In some aspects of the present disclosure, NR sidelink may support “operation without shared spectrum channel access” (e.g., NR sidelink operation on licensed spectrum).

[0102] In some aspects of the present disclosure, NR sidelink may support “operation with shared spectrum channel access” (e.g., NR sidelink operation on unlicensed spectrum).

[0103] For unlicensed spectrum, in order to ensure fair sharing of channels by different communication nodes, certain restrictions may be imposed on the PSD (Power Spectral Density) and / or OCB (Occupied Channel Bandwidth) of signal transmission. For example, the maximum PSD cannot exceed 10dBm / MHz. For another example, when using a shared spectrum channel, the bandwidth containing 99% of the transmission power must be greater than or equal to a specific percentage (e.g., 80%) of the nominal channel bandwidth. The restrictions (if any) may be established and enforced by regulatory agencies. In different countries and / or regions, the restrictions on PSD and / or OCB (if any) may be different.

[0104] A wireless transmission can correspond to one or more "interlaces", and accordingly, the wireless transmission can be called an "interlace-based transmission". For example, for the subcarrier spacing configuration μ, we can define interleave, for example, the corresponding interleave set is recorded as Among them, Interweaving int m The corresponding set of CRBs can be defined as Among them, the set Each element in may correspond to a CRB number. Can be an integer greater than or equal to 1, for example, for μ = 0, For example, for μ=1, The definition of interleaving (and corresponding interleaving-based transmission) may only apply to some subcarrier spacing configurations and not to other subcarrier spacing configurations.

[0105] An interleaved transmission involving one or more RBs is referred to as an "interlaced-RB-based transmission" or "interlace RB-based transmission." Compared to a contiguous RB-based transmission, an interleaved transmission can occupy a larger bandwidth for a given number of RBs, thereby better meeting OCB constraints.

[0106] In some aspects of the present disclosure, operations based on interleaved RBs may include part or all of transmission, reception, and measurement based on interleaved RBs, and operations based on consecutive RBs may include part or all of transmission, reception, and measurement based on consecutive RBs.

[0107] In some aspects of the present disclosure, NR sidelink may support sidelink single-carrier (SL-SC)-based operations, e.g., performing part or all of sidelink transmission, sidelink reception, and sidelink measurement on a sidelink carrier in one time slot, or in one or more symbols (e.g., sidelink symbols) in one time slot.

[0108] In some aspects of the present disclosure, NR sidelink may support sidelink carrier aggregation (SL-CA)-based operations, for example, performing sidelink transmission, sidelink reception, and sidelink measurement, in part or in whole, on more than one sidelink carrier in a timeslot, or in one or more symbols (e.g., sidelink symbols) in a timeslot. Each sidelink carrier in SL-CA may be referred to as a component carrier (CC).

[0109] In some aspects of the present disclosure, the (pre)configuration information corresponding to a sidecarrier may include the SCS corresponding to the sidecarrier (for example, represented by the corresponding SCS configuration). For example, the SCS configuration may be indicated by the parameter subcarrierSpacing.

[0110] In some aspects of the present disclosure, for all component carriers in SL-CA, one or more of the following are the same:

[0111] ●SCS (or, corresponding SCS configuration).

[0112] CP (cyclic prefix) length.

[0113] ●The start time of the frame corresponding to SFN=0.

[0114] ●The start time of the frame corresponding to DFN=0.

[0115] ●The starting side symbol in a time slot.

[0116] ●The number of sidelink symbols in a time slot.

[0117] In some aspects of the present disclosure, each sidecarrier may have its own “UE channel bandwidth.” Each UE channel bandwidth may be placed on a frequency band, such as band n47 (5855 MHz-5925 MHz).

[0118] In some aspects of the present disclosure, the UE channel bandwidths corresponding to all component carriers in SL-CA may be placed in the same frequency band.

[0119] In some aspects of the present disclosure, for an SCS, one or more UE channel bandwidths may be supported in a frequency band. For example, for band n47 and a 30 kHz SCS, the UE channel bandwidths that may be used for NR V2X (Vehicle to Everything) may include 10 MHz, 20 MHz, 30 MHz, and 40 MHz. For different SCSs, the set of UE channel bandwidths that may be supported in a frequency band may be the same or different.

[0120] In some aspects of the present disclosure, for an SCS, each UE channel bandwidth may correspond to a Maximum Transmission Bandwidth Configuration (MTBC), where the MTBC may be expressed as the number of RBs. For example, for a 30kHz SCS, the MTBCs for UE channel bandwidths of 10 MHz, 20 MHz, 30 MHz, and 40 MHz may be 24 RBs, 51 RBs, 78 RBs, and 106 RBs, respectively.

[0121] In some aspects of the present disclosure, the (pre) configuration information corresponding to a sidecarrier may include the TBC (Transmission Bandwidth Configuration) corresponding to the sidecarrier, where the TBC may be represented by the number of RBs. For example, the TBC may be indicated by the parameter carrierBandwidth. In some aspects of the present disclosure, the TBC may be referred to as the bandwidth (or transmission bandwidth) of the sidecarrier. In some aspects of the present disclosure, the TBC may always be less than or equal to the MTBC corresponding to the corresponding UE channel bandwidth. In some aspects of the present disclosure, the TBC may always be equal to the MTBC corresponding to the corresponding UE channel bandwidth.

[0122] Example 1

[0123] The following describes a method executed by a UE (for example, denoted as UE-A) according to the first embodiment of the present disclosure with reference to FIG. 1 .

[0124] In some aspects of the present disclosure, embodiment 1 of the present disclosure may correspond to a type 1 information transmission process, wherein the type 1 information transmission process may be used to transmit information of a UE (eg, capability information).

[0125] In some aspects of the present disclosure, embodiment 1 of the present disclosure may correspond to a portion of the type 1 information transmission process.

[0126] FIG1 shows a flowchart corresponding to a method executed by the UE-A according to the first embodiment of the present disclosure.

[0127] As shown in FIG1 , in the first embodiment of the present disclosure, the steps performed by the UE-A include: step S101 and step S103 .

[0128] Specifically, in step S101, the content of a type 1A UE-side message is determined and / or set.

[0129] In some aspects of the present disclosure, the step S101 (or the type 1 information transmission process) may be at least partially triggered by a message from the network. For example, the UE-A triggers the step S101 (or triggers the type 1 information transmission process) after receiving a type 1 network-side message (type 1 network-side message) from the network (e.g., a base station), wherein the type 1 network-side message may be part of the type 1 information transmission process, or may not be part of the type 1 information transmission process. For another example, the UE-A triggers the step S101 (or triggers the type 1 information transmission process) after receiving a type 2 network-side message from the base station, wherein the type 2 network-side message may be part of the type 1 information transmission process, or may not be part of the type 1 information transmission process.

[0130] In some aspects of the present disclosure, the type 1 network-side message may include one or more "request filters". For example, each request filter may be one of the following:

[0131] A "frequency band list filter", for example represented by the parameter frequencyBandListFilter.

[0132] A "sidelink frequency band list filter", for example represented by the parameter frequencyBandListFilterSidelink.

[0133] A request filter can be used to request "filtered" UE information (e.g., UE capability information). For example, if the type 1 network side message contains a frequency band list filter that includes one or more frequency bands, then in response, the frequency band-related information contained in the type 1A UE side message may only involve the one or more frequency bands.

[0134] In some aspects of the present disclosure, the type 1 network side message may be an RRC message, or a PC5-RRC message.

[0135] In some aspects of the present disclosure, the Type 1 network-side message may be a UECapabilityEnquiry message (or a "UE Capability Enquiry" message). The UECapabilityEnquiry message may be used to request a UE's radio access capabilities for one or more RATs (Radio Access Technology, such as NR or LTE).

[0136] In some aspects of the present disclosure, the type 2 network side message may be an RRC message, or a PC5-RRC message.

[0137] In some aspects of the present disclosure, the type 2 network side message may be a SIB (system information block), for example, SIB12, wherein the SIB12 may contain configuration information related to sideline operations (for example, NR sideline communication and / or NR sideline discovery).

[0138] In some aspects of the present disclosure, step S101 (or the Type 1 information transmission process) may be at least partially triggered by another UE (e.g., UE-B). For example, UE-A triggers step S101 (or the Type 1 information transmission process) upon receiving a Type 1B UE-side message from UE-B. The Type 1B UE-side message may be part of the Type 1 information transmission process or may not be part of the Type 1 information transmission process.

[0139] In some aspects of the present disclosure, the Type 1B UE-side message may be an RRC message or a PC5-RRC message.

[0140] In some aspects of the present disclosure, the Type 1B UE side message may be a UECapabilityEnquirySidelink message (or referred to as a "UE Sidelink Capability Enquiry" message). The UECapabilityEnquirySidelink message may be used to request the sidelink capability of a UE.

[0141] In some aspects of the present disclosure, the step S101 (or the type 1 information transmission procedure) may be at least partially triggered by the UE-A itself.

[0142] In some aspects of the present disclosure, the type 1A UE-side message may be an RRC message or a PC5-RRC message.

[0143] In some aspects of the present disclosure, the Type 1A UE-side message may be a UECapabilityInformation message (or a "UE Capability Information" message). The UECapabilityInformation message may be used to provide a UE's radio access capability to one or more RATs.

[0144] In some aspects of the present disclosure, the Type 1A UE side message may be a UECapabilityInformationSidelink message (or referred to as a "UE Sidelink Capability Information" message). The UECapabilityInformationSidelink message may be used to provide a sidelink capability of a UE.

[0145] In some aspects of the present disclosure, the Type 1A UE side message may be a SidelinkUEInformationNR message (or referred to as an "NR UE Sidelink Information" message). The SidelinkUEInformationNR message may be used to inform the network of information related to NR sidelink, for example, including one or more of the following:

[0146] The UE-A is interested in NR sideline reception or NR sideline transmission.

[0147] The UE-A is no longer interested in NR sideline reception or NR sideline transmission.

[0148] The UE-A is requesting the allocation or release of transmission resources for the NR sidelink.

[0149] The UE-A is reporting the sidewalk capability information of the peer UE in unicast communication.

[0150] In some aspects of the present disclosure, the type 1A UE side message may include UE capability information, wherein the UE capability information may include (or include and only include) UE capability information related to the NR side line.

[0151] The UE capability information related to NR sidelink can be indicated (or "provided") by one or more parameters in the UE capability information (e.g., sidelinkParametersNR; or, for example, ueCapabilityFormationSidelink).

[0152] The UE capability information related to the NR sidelink may include a sidelink reception capability, wherein the sidelink reception capability may be defined (or "determined") on a per-band basis, or defined (or "determined") on a per-band-combination basis, or defined (or "determined") on a per-carrier basis, or defined (or "determined") in another manner. For example, in the case of being defined on a per-band basis, the sidelink reception capability information corresponding to different frequency bands may be completely different, partially the same, or completely the same.

[0153] The UE capability information related to the NR sidelink may include information about a first sidelink frequency band set (or referred to as a "first sidelink frequency band list"), wherein the first sidelink frequency band set may be provided by a parameter (e.g., parameter supportedBandListSidelink) in the UE capability information related to the NR sidelink, or may be determined based on one or more parameters (e.g., parameter supportedBandListSidelink, parameter supportedBandCombinationList, and part or all of parameter supportedBandCombinationListSidelinkNR) in the UE capability information related to the NR sidelink. Each frequency band in the first sidelink frequency band set may be a frequency band supported by the UE-A and may be used for NR sidelink.

[0154] The first sidelink frequency band set may only include frequency bands included in the frequency band list filter (for example, when the frequency band list filter exists).

[0155] The first sideline frequency band set may only include frequency bands included in the sideline frequency band list filter (for example, when the sideline frequency band list filter exists).

[0156] The first sideband set can be expressed as in, is the set The number of elements in .

[0157] right frequency band The corresponding UE capability information may at least partially include one or more of the following:

[0158] ● Frequency band number, for example

[0159] ●The first side receiving capacity, for example, is described May be applicable to (or, applicable to and only applicable to) the frequency band Side reception capability.

[0160] ●The second side receiving capacity, for example, is described May be applicable to (or, applicable to and only applicable to) the frequency band Side reception capability.

[0161] In some aspects of the present disclosure, the It can be used to indicate whether the UE-A supports NR sideline reception.

[0162] In some aspects of the present disclosure, the It can be used to indicate whether the UE-A supports operations in a first reference sideline reception operation set, where the first reference sideline reception operation set can be composed of one or more of the following items:

[0163] ●Operation without shared spectrum channel access.

[0164] ●Operation on licensed spectrum.

[0165] ●Operation with shared spectrum channel access.

[0166] ●Operation on unlicensed spectrum.

[0167] ●SL-SC based operation.

[0168] ●SL-CA based operations.

[0169] ● Operation based on interleaved RBs.

[0170] ●Operation based on continuous RBs.

[0171] In some aspects of the present disclosure, if the UE-A supports NR sideline reception (or if the UE-A supports the operations in the first reference sideline reception operation set), the may correspond to (or "indicate") one or more capabilities related to NR sideline reception, and the It may include one or more parameters related to NR sideline reception (e.g., including PSCCH reception) capabilities.

[0172] In some aspects of the present disclosure, the It can be used to indicate whether the UE-A supports NR sideline reception.

[0173] In some aspects of the present disclosure, the It can be used to indicate whether the UE-A supports operations in a second reference sideline reception operation set, where the second reference sideline reception operation set can be composed of one or more of the following items:

[0174] ●Operation without shared spectrum channel access.

[0175] ●Operation on licensed spectrum.

[0176] ●Operation with shared spectrum channel access.

[0177] ●Operation on unlicensed spectrum.

[0178] ●SL-SC based operation.

[0179] ●SL-CA based operations.

[0180] ● Operation based on interleaved RBs.

[0181] ●Operation based on continuous RBs.

[0182] In some aspects of the present disclosure, if the UE-A supports NR sideline reception (or if the UE-A supports the operations in the second reference sideline reception operation set), the may correspond to (or "indicate") one or more capabilities related to NR sideline reception, and the It may include one or more parameters related to NR sideline reception (e.g., including PSCCH reception) capabilities.

[0183] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may be at least partially represented by parameters in a corresponding parameter set, wherein the parameters in the parameter set may be defined in a sideband IE (Information Element), for example, the frequency band number Can be applied to the frequency band For example, the first sidelink receiving capability Can be applied to the frequency band For example, the second sideline receiving capability Can be applied to the frequency band The parameter sl-EnhancedReception in the sideband IE.

[0184] In some aspects of the present disclosure, the values ​​of parameters in parameter sets corresponding to two different frequency bands can be set independently. For example, parameter XYZ in the parameter set corresponding to one frequency band can be set to xyz-value1, and parameter XYZ in the parameter set corresponding to another frequency band can be set to xyz-value2.

[0185] In some aspects of the present disclosure, the conditions and / or scopes to which the first side-row receiving capability and the second side-row receiving capability apply may be different.

[0186] In some aspects of the present disclosure, the first sideline receiving capability may be applied to one or more of the following:

[0187] ●Operation without shared spectrum channel access.

[0188] ●Operation on licensed spectrum.

[0189] ●Operation with shared spectrum channel access.

[0190] ●Operation on unlicensed spectrum.

[0191] ●SL-SC based operation.

[0192] ●SL-CA based operations.

[0193] ● Operation based on interleaved RBs.

[0194] ●Operation based on continuous RBs.

[0195] In some aspects of the present disclosure, the second sideline receiving capability may be applied to one or more of the following:

[0196] ●Operation without shared spectrum channel access.

[0197] NR sideline operation on licensed spectrum.

[0198] ●Operation with shared spectrum channel access.

[0199] NR sideline operation in unlicensed spectrum.

[0200] ●SL-SC based operation.

[0201] ●SL-CA based operations.

[0202] ● Operation based on interleaved RBs.

[0203] ●Operation based on continuous RBs.

[0204] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may not include either the first sideline receiving capability or the second sideline receiving capability.

[0205] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include one (and only one) of the first sideline receiving capability and the second sideline receiving capability.

[0206] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include part or all of the first sideline receiving capability and the second sideline receiving capability.

[0207] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include the first sideline receiving capability but not the second sideline receiving capability.

[0208] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include the second sideline receiving capability but not the first sideline receiving capability.

[0209] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include both the first sideline receiving capability and the second sideline receiving capability.

[0210] In some aspects of the present disclosure, the frequency band The corresponding UE capability information cannot include both the first sideline receiving capability and the second sideline receiving capability.

[0211] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information includes the first sideline receiving capability, the first sideline receiving capability is applied.

[0212] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information includes the second sideline receiving capability, the second sideline receiving capability is applied.

[0213] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information includes both the first sideline receiving capability and the second sideline receiving capability, the second sideline receiving capability may be ignored.

[0214] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information includes both the first sideline receiving capability and the second sideline receiving capability, the first sideline receiving capability may be ignored.

[0215] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information does not include either the first sideline receiving capability or the second sideline receiving capability, a predefined first sideline receiving capability is applied.

[0216] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information does not include either the first sideline receiving capability or the second sideline receiving capability, a predefined second sideline receiving capability is applied.

[0217] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include a "first PSCCH receiving capability", wherein the first PSCCH receiving capability may be represented by the number of PSCCHs supported by the UE-A and received in one time slot (for example, )express.

[0218] In some aspects of the present disclosure, the It can be indicated by the parameter pscch-RxSidelink. It can be equal to the value indicated by the parameter pscch-RxSidelink (for example, ),Right now

[0219] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include a "second PSCCH reception capability", wherein the second PSCCH reception capability may be expressed as the number of PSCCHs supported by the UE-A and received in one time slot (e.g., )express.

[0220] In some aspects of the present disclosure, the It can be indicated by the parameter pscch-EnhancedRxSidelink. It may be equal to the value indicated by the parameter pscch-EnhancedRxSidelink (e.g. ),Right now

[0221] In some aspects of the present disclosure, the conditions and / or scopes to which the first PSCCH reception capability and the second PSCCH reception capability apply may be different.

[0222] In some aspects of the present disclosure, the first PSCCH reception capability may be applied to one or more of the following:

[0223] ●Operation without shared spectrum channel access.

[0224] ●Operation on licensed spectrum.

[0225] ●Operation with shared spectrum channel access.

[0226] ●Operation on unlicensed spectrum.

[0227] ●SL-SC based operation.

[0228] ●SL-CA based operations.

[0229] ● Operation based on interleaved RBs.

[0230] ●Operation based on continuous RBs.

[0231] In some aspects of the present disclosure, the second PSCCH reception capability may be applied to one or more of the following:

[0232] ●Operation without shared spectrum channel access.

[0233] NR sideline operation on licensed spectrum.

[0234] ●Operation with shared spectrum channel access.

[0235] NR sideline operation in unlicensed spectrum.

[0236] ●SL-SC based operation.

[0237] ●SL-CA based operations.

[0238] ● Operation based on interleaved RBs.

[0239] ●Operation based on continuous RBs.

[0240] In some aspects of the present disclosure, the first PSCCH reception capability may be part of the first sidelink reception capability, and accordingly, the parameter pscch-RxSidelink may be included in the parameter sl-Reception.

[0241] In some aspects of the present disclosure, the first PSCCH reception capability may be a part of the second sidelink reception capability, and accordingly, the parameter pscch-RxSidelink may be included in the parameter sl-EnhancedReception.

[0242] In some aspects of the present disclosure, the second PSCCH reception capability may be a part of the first sidelink reception capability, and accordingly, the parameter pscch-EnhancedRxSidelink may be included in the parameter sl-Reception.

[0243] In some aspects of the present disclosure, the second PSCCH reception capability may be part of the second sidelink reception capability, and accordingly, the parameter pscch-EnhancedRxSidelink may be included in the parameter sl-EnhancedReception.

[0244] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may not include either the first PSCCH reception capability or the second PSCCH reception capability.

[0245] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include one (and only one) of the first PSCCH reception capability and the second PSCCH reception capability.

[0246] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include part or all of the first PSCCH reception capability and the second PSCCH reception capability.

[0247] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include the first PSCCH reception capability but not the second PSCCH reception capability.

[0248] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include the second PSCCH reception capability but not the first PSCCH reception capability.

[0249] In some aspects of the present disclosure, the frequency band The corresponding UE capability information may include both the first PSCCH receiving capability and the second PSCCH receiving capability.

[0250] In some aspects of the present disclosure, the frequency band The corresponding UE capability information cannot include both the first PSCCH reception capability and the second PSCCH reception capability.

[0251] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information includes the first PSCCH receiving capability, the first PSCCH receiving capability is applied.

[0252] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information includes the second PSCCH reception capability, the second PSCCH reception capability is applied.

[0253] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information includes both the first PSCCH reception capability and the second PSCCH reception capability, the second PSCCH reception capability can be ignored.

[0254] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information includes both the first PSCCH reception capability and the second PSCCH reception capability, the first PSCCH reception capability can be ignored.

[0255] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information does not include either the first PSCCH reception capability or the second PSCCH reception capability, a predefined first PSCCH reception capability is applied.

[0256] In some aspects of the present disclosure, if the frequency band If the corresponding UE capability information does not include either the first PSCCH reception capability or the second PSCCH reception capability, a predefined second PSCCH reception capability is applied.

[0257] In some aspects of the present disclosure, the It can be a "first PSCCH receiving capability value set" (for example, ) is an element in the set. It can be recorded as in, is the number of elements in the set; Can be a predefined or (pre)configured value; Can be an integer greater than or equal to 1, for example, For example, For example, For example, For example, For example, For example,

[0258] In some aspects of the present disclosure, Part or all of i1, the set Elements in According to i1, as well as Partial or complete determination (e.g. For example, ),in,

[0259] ●In some aspects of the present disclosure, It can be expressed by the number of RBs. For example, It may correspond to the minimum value of the sub-channel size that can be (pre-)configured for one resource pool (eg, 10 RBs).

[0260] ●In some aspects of the present disclosure, as well as Each of can be a predefined or (pre)configured value.

[0261] ●In some aspects of the present disclosure, as well as Each of can be an integer greater than or equal to 1. For example, for different i1, Can correspond to the collection The same element in , or different elements; for example, for different i1, Can correspond to the set The same element in , or different elements; for example, for different i1, Can correspond to the set The same element in , or different elements.

[0262] ●In some aspects of the present disclosure, and Each of can be a value greater than or equal to 0. For example, for different i1, Can correspond to the collection The same element in , or different elements; for example, for different i1, Can correspond to the set The same element in , or different elements.

[0263] ● It can be determined according to the MTBC corresponding to one or more UE channel bandwidths and / or the TBC corresponding to one or more sidelink carriers.

[0264] ● It can be expressed by the number of RBs.

[0265] ● Can be an integer greater than or equal to 1.

[0266] In some aspects of the present disclosure, the It can be defined as a "first reference UE channel bandwidth" (for example, ) corresponding to the MTBC, where

[0267] ●In some aspects of the present disclosure, the Can be applicable to (or, applicable to and only applicable to) SL-SC.

[0268] ● In some aspects of the present disclosure, for SL-SC, in determining the The SCS used in the corresponding MTBC may be the SCS of the corresponding operating carrier, or may be the SCS of the corresponding operating BWP.

[0269] ●In some aspects of the present disclosure, the May be applicable to (or, applicable to and only applicable to) SL-CA.

[0270] ● In some aspects of the present disclosure, for SL-CA, in determining the The SCS used in the corresponding MTBC can be one of the following:

[0271] ■ A "first reference sidecarrier set" (e.g. FSC T1,ref ) is the common SCS of all sidecarriers in ).

[0272] ■The collection FSC T1,ref The common SCS of the (pre-)configured BWPs in all sidecarriers.

[0273] ■Common SCS for all component carriers.

[0274] ■ A common SCS for the (pre-)configured BWPs in all component carriers.

[0275] ● In some aspects of the present disclosure, when applied to SL-SC and SL-CA respectively, the It can be determined in different ways.

[0276] ● In some aspects of the present disclosure, for SL-SC, the It can be the UE channel bandwidth corresponding to the corresponding working carrier. For example, if the working carrier corresponding to the SL-SC is a side carrier with a 20MHz UE channel bandwidth and a 30kHz SCS in the frequency band n47, then the can be equal to 20MHz, accordingly, the It can be MTBC determined based on UE channel bandwidth of 20 MHz and 30 kHz SCS (for example, RB).

[0277] ● In some aspects of the present disclosure, for part or all of SL-SC and SL-CA, the The FSC set may be T1,ref A function of the UE channel bandwidth corresponding to all sideline carriers in, for example, can be equal to the set FSC T1,ref The minimum value (or maximum value; or average value) of the UE channel bandwidth corresponding to all sidecar carriers in the set FSC. T1,ref The two side carriers are composed of a side carrier with an SCS of 30kHz in a 20MHz UE channel bandwidth in the frequency band n47 and a side carrier with an SCS of 30kHz in a 10MHz UE channel bandwidth in the same frequency band. can be equal to min(20,10)=10MHz, accordingly, the It can be MTBC determined based on 10MHz UE channel bandwidth and 30kHz SCS (for example, RB).

[0278] ● In some aspects of the present disclosure, for part or all of SL-SC and SL-CA, the It can be a predefined or (pre)configured UE channel bandwidth, e.g. For example, For example, For example,

[0279] In some aspects of the present disclosure, the pooled FSC T1,ref You can confirm by pressing one of the following:

[0280] FSC T1，ref =FSC1, or, FSC T1，ref is a subset of the set FSC1, wherein the set FSC1 is a sidecar carrier set configured in SIB12, for example, the set FSC1 may include one or more of the following:

[0281] ■A sidecarrier configured by the parameter sl-FreqInfoList.

[0282] ■One or more sidecarriers configured by the parameter sl-FreqInfoList.

[0283] ■ One or more sidecarriers configured by the parameter sl-FreqInfoListSizeExt.

[0284] FSC T1，ref =FSC2, or FSC T1，ref It is a subset of the set FSC2, wherein the set FSC2 is a sidecar carrier set configured in the RRCReconfiguration message, for example, the set FSC2 can be determined according to the parameter sl-FreqInfoToAddModList and / or the parameter sl-FreqInfoToReleaseList.

[0285] FSC T1，ref =FSC3, or FSC T1，ref It is a subset of the set FSC3, where the set FSC3 is a pre-configured (for example, pre-configured in SL-PreconfigurationNR) sidecarrier set. Specifically, for example, the set FSC3 may include one or more of the following:

[0286] ■A sidecarrier preconfigured by the parameter sl-PreconfigFreqInfoList.

[0287] ■ One or more sidecarriers preconfigured by the parameter sl-PreconfigFreqInfoList.

[0288] ■ One or more sidecarriers preconfigured by the parameter sl-PreconfigFreqInfoListSizeExt.

[0289] FSC T1，ref =FSC4, or FSC T1，ref is a subset of the set FSC4, where the set FSC4 is a set of sideline carriers on which the UE is interested in performing NR sideline reception. For example, the set FSC4 may consist of one or more of the following:

[0290] ■ A sidecar carrier indicated to the network via the parameter sl-RxInterestedFreqList.

[0291] ■ One or more sidecarriers indicated to the network via the parameter sl-RxInterestedFreqList.

[0292] ■ One or more sidecarriers indicated to the network via the parameter sl-RxInterestedFreqListSizeExt.

[0293] FSC T1,ref =FSC5, or FSC T1,ref is a subset of the set FSC5, where the set FSC5 is the set of sidelink carriers on which the UE is interested in performing NR sidelink transmission. For example, the set FSC5 may consist of one or more of the following:

[0294] ■ A sidecarrier indicated to the network via the parameter sl-TxInterestedFreqList.

[0295] ■ One or more sidecarriers indicated to the network via the parameter sl-TxInterestedFreqList.

[0296] ■ One or more sideline carriers indicated to the network via the parameter sl-TxInterestedFreqListSizeExt.

[0297] In some aspects of the present disclosure, for SL-SC, the set FSC T1,ref It can be a set consisting of corresponding working carriers (ie, the set FSC T1,ref There is only one element in it).

[0298] In some aspects of the present disclosure, for SL-CA, the set FSC T1,ref It can be a set consisting of all component carriers.

[0299] In some aspects of the present disclosure, the set FSC4 may be a subset of the set FSC1.

[0300] In some aspects of the present disclosure, each element in the set FSC4 may correspond to an index of an element in the set FSC1.

[0301] In some aspects of the present disclosure, the set FSC5 may be a subset of the set FSC1.

[0302] In some aspects of the present disclosure, each element in the set FSC5 may correspond to an index of an element in the set FSC1.

[0303] In some aspects of the present disclosure, the pooled FSC T1，ref It may be the intersection of one or more of the set FSC1, the set FSC2, the set FSC3, the set FSC4, and the set FSC5, or the set FSC T1,ref It can be a subset of the intersection.

[0304] In some aspects of the present disclosure, the pooled FSC T1,ref It may be a union of one or more of the set FSC1, the set FSC2, the set FSC3, the set FSC4, and the set FSC5, or the set FSC T1，ref It can be a subset of the union.

[0305] In some aspects of the present disclosure, when applied to operations without shared spectrum channel access and operations with shared spectrum channel access, respectively, described described The collection described described described described described and the Part or all of can be determined in the same way.

[0306] In some aspects of the present disclosure, when applied to operations without shared spectrum channel access and operations with shared spectrum channel access, respectively, described described The collection described described described described described and the Part or all of can be determined in different ways.

[0307] In some aspects of the present disclosure, when applied to NR sideline operation on licensed spectrum and NR sideline operation on unlicensed spectrum, respectively, described described The collection described described described described described and the Part or all of can be determined in the same way.

[0308] In some aspects of the present disclosure, when applied to NR sideline operation on licensed spectrum and NR sideline operation on unlicensed spectrum, respectively, described described The collection described described described described described and the Part or all of can be determined in different ways.

[0309] In some aspects of the present disclosure, when applied to SL-SC-based operations and SL-CA-based operations, respectively, described described The collection described described described described described and the Part or all of can be determined in the same way.

[0310] In some aspects of the present disclosure, when applied to SL-SC-based operations and SL-CA-based operations, respectively, described described The collection described described described described described and the Part or all of can be determined in different ways.

[0311] In some aspects of the present disclosure, when applied to interleaved RB-based operation and continuous RB-based operation, respectively, described described The collection described described described described described and the Part or all of can be determined in the same way.

[0312] In some aspects of the present disclosure, when applied to interleaved RB-based operation and continuous RB-based operation, respectively, described described The collection described described described described described and the Part or all of can be determined in different ways.

[0313] In some aspects of the present disclosure, the It can be a "second PSCCH receiving capability value set" (for example, ) is an element in the set. It can be recorded as in, is the number of elements in the set; Can be a predefined or (pre)configured value; Can be an integer greater than or equal to 1, for example, For example, For example, For example, For example, For example, For example, For example,

[0314] In some aspects of the present disclosure, Part or all of i2, the set Elements in According to i2, as well as Partial or complete determination (e.g. For example, ),in,

[0315] ●In some aspects of the present disclosure, It can be expressed by the number of RBs. For example, It may correspond to the minimum value of the sub-channel size that can be (pre-)configured for one resource pool (eg, 10 RBs).

[0316] ●In some aspects of the present disclosure, as well as Each of can be a predefined or (pre)configured value.

[0317] ●In some aspects of the present disclosure, as well as Each of can be an integer greater than or equal to 1. For example, for different i2, Can correspond to the collection The same element in , or different elements; for example, for different i2, Can correspond to the set The same element in , or different elements; for example, for different i2, Can correspond to the set The same element in , or different elements.

[0318] ●In some aspects of the present disclosure, and Each of can be a value greater than or equal to 0. For example, for different i2, Can correspond to the collection The same element in , or different elements; for example, for different i2, Can correspond to the set The same element in , or different elements.

[0319] ● It can be determined according to the MTBC corresponding to one or more UE channel bandwidths and / or the TBC corresponding to one or more sidelink carriers.

[0320] ● It can be expressed by the number of RBs.

[0321] ● Can be an integer greater than or equal to 1.

[0322] In some aspects of the present disclosure, the It can be defined as a "second reference UE channel bandwidth" (for example, ) corresponding to the MTBC, where

[0323] ●In some aspects of the present disclosure, the Can be applicable to (or, applicable to and only applicable to) SL-SC.

[0324] ● In some aspects of the present disclosure, for SL-SC, in determining the The SCS used in the corresponding MTBC may be the SCS of the corresponding operating carrier, or may be the SCS of the corresponding operating BWP.

[0325] ●In some aspects of the present disclosure, the May be applicable to (or, applicable to and only applicable to) SL-CA.

[0326] ● In some aspects of the present disclosure, for SL-CA, in determining the The SCS used in the corresponding MTBC can be one of the following:

[0327] ■The collection FSC T1,ref The common SCS of all sidecarriers in the .

[0328] ■The collection FSC T1,ref The common SCS of the (pre-)configured BWPs in all sidecarriers.

[0329] ■Common SCS for all component carriers.

[0330] ■ A common SCS for the (pre-)configured BWPs in all component carriers.

[0331] ● In some aspects of the present disclosure, when applied to SL-SC and SL-CA respectively, the It can be determined in different ways.

[0332] ● In some aspects of the present disclosure, for SL-SC, the It can be the UE channel bandwidth corresponding to the corresponding working carrier. For example, if the working carrier corresponding to the SL-SC is a side carrier with a 20MHz UE channel bandwidth and a 30kHz SCS in the frequency band n47, then the can be equal to 20MHz, accordingly, the It can be MTBC determined based on UE channel bandwidth of 20 MHz and 30 kHz SCS (for example, RB).

[0333] ● In some aspects of the present disclosure, for part or all of SL-SC and SL-CA, the The FSC set may be T1,ref A function of the UE channel bandwidth corresponding to all sideline carriers in, for example, can be equal to the set FSC T1,ref The minimum value (or maximum value; or average value) of the UE channel bandwidth corresponding to all sidecar carriers in the set FSC. T1,ref The two side carriers are composed of a side carrier with an SCS of 30kHz in a 20MHz UE channel bandwidth in the frequency band n47 and a side carrier with an SCS of 30kHz in a 10MHz UE channel bandwidth in the same frequency band. can be equal to min(20,10)=10MHz, accordingly, the It can be MTBC determined based on 10MHz UE channel bandwidth and 30kHz SCS (for example, RB).

[0334] ● In some aspects of the present disclosure, for part or all of SL-SC and SL-CA, the It can be a predefined or (pre)configured UE channel bandwidth, e.g. For example, For example, For example,

[0335] In some aspects of the present disclosure, when applied to operations without shared spectrum channel access and operations with shared spectrum channel access, respectively, described described The collection described described described described described and the Part or all of can be determined in the same way.

[0336] In some aspects of the present disclosure, when applied to operations without shared spectrum channel access and operations with shared spectrum channel access, respectively, described described The collection described described described described described and the Part or all of can be determined in different ways.

[0337] In some aspects of the present disclosure, when applied to NR sideline operation on licensed spectrum and NR sideline operation on unlicensed spectrum, respectively, described described The collection described described described described described and the Part or all of can be determined in the same way.

[0338] In some aspects of the present disclosure, when applied to NR sideline operation on licensed spectrum and NR sideline operation on unlicensed spectrum, respectively, described described The collection described described described described described and the Part or all of can be determined in different ways.

[0339] In some aspects of the present disclosure, when applied to SL-SC-based operations and SL-CA-based operations, respectively, described described The collection described described described described described and the Part or all of can be determined in the same way.

[0340] In some aspects of the present disclosure, when applied to SL-SC-based operations and SL-CA-based operations, respectively, described described The collection described described described described described and the Part or all of can be determined in different ways.

[0341] In some aspects of the present disclosure, when applied to interleaved RB-based operation and continuous RB-based operation, respectively, described described The collection described described described described described and the Part or all of can be determined in the same way.

[0342] In some aspects of the present disclosure, when applied to interleaved RB-based operation and continuous RB-based operation, respectively, described described The collection described described described described described and the Part or all of can be determined in different ways.

[0343] In addition, in step S103, the type 1A UE-side message is transmitted.

[0344] For example, the type 1A UE-side message is submitted to the physical layer for transmission.

[0345] Specifically, for example, perform one or more of the following:

[0346] • Transmitting the UECapabilityInformation message to the base station (eg, this applies when the Type 1A UE-side message is a UECapabilityInformation message).

[0347] • Transmitting the SidelinkUEInformationNR message to the base station (eg, this applies when the Type 1A UE-side message is a SidelinkUEInformationNR message).

[0348] • Transmitting the UECapabilityInformationSidelink message to the UE-B (eg this applies if the Type 1A UE-side message is a UECapabilityInformationSidelink message).

[0349] In the first embodiment of the present disclosure, “operation” may refer to “NR side operation”.

[0350] In the first embodiment of the present disclosure, the "interleaved RB-based operation" may belong to an operation with shared spectrum channel access.

[0351] In the first embodiment of the present disclosure, “operation based on interleaved RBs” may be an operation on an unlicensed spectrum.

[0352] In the first embodiment of the present disclosure, “operation based on continuous RBs” may be an operation on an unlicensed spectrum.

[0353] In the first embodiment of the present disclosure, “operation based on continuous RBs” may be an operation on a licensed spectrum.

[0354] In the first embodiment of the present disclosure, “operation based on continuous RBs” may belong to operation with shared spectrum channel access.

[0355] In the first embodiment of the present disclosure, “operation based on continuous RBs” may be an operation without shared spectrum channel access.

[0356] In the first embodiment of the present disclosure, "sideline receiving capability" may refer to "NR sideline receiving capability".

[0357] In the first embodiment of the present disclosure, the sideband IE may be BandSidelink, or may be BandSidelinkPC5, or may be another IE.

[0358] In the first embodiment of the present disclosure, SL-CA may include (or include and only include) intra-band carrier aggregation.

[0359] In the first embodiment of the present disclosure, SL-CA may include (or include and only include) intra-band contiguous carrier aggregation.

[0360] The first embodiment of the present disclosure may be applicable to (or applicable to and only applicable to) operations without shared spectrum channel access (eg, operations on licensed spectrum).

[0361] The first embodiment of the present disclosure may be applicable to (or applicable to and only applicable to) operations with shared spectrum channel access (eg, operations on unlicensed spectrum).

[0362] The first embodiment of the present disclosure may be executed by a higher-layer protocol entity (eg, RRC layer; for example, PC5-RRC layer) of the UE-A.

[0363] Thus, according to the first embodiment, the present disclosure provides a method, wherein, when reporting UE capability information related to sidelink operations, the UE can report different PSCCH decoding capabilities for the sidelink single carrier case and the sidelink carrier aggregation case, or for the operation based on interleaved RBs and the operation based on continuous RBs, or for the operation on the authorized spectrum and the operation on the unauthorized spectrum, thereby reducing the implementation complexity of the UE in supporting different sidelink operations.

[0364] Modifications

[0365] 2 is used to illustrate a user equipment as a modified example that can execute the method executed by the user equipment described in detail above in the present disclosure.

[0366] FIG2 is a block diagram showing a user equipment involved in the present disclosure.

[0367] As shown in Figure 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, etc. The memory 202 may include, for example, a volatile memory (such as a random access memory (RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory. The memory 202 stores program instructions. When executed by the processor 201, these instructions may execute the above-described method performed by the user equipment as described in detail in this disclosure.

[0368] The method of the present disclosure and the user equipment involved have been described above in conjunction with preferred embodiments. Those skilled in the art will appreciate that the method illustrated above is merely exemplary, and that the various embodiments described above can be combined with one another unless conflicts arise. The method of the present disclosure is not limited to the steps and sequence illustrated above. The user equipment illustrated above may include further modules. The various identifiers illustrated above are merely exemplary and not restrictive, and the present disclosure is not limited to the specific information elements used as examples of these identifiers. Based on the teachings of the illustrated embodiments, those skilled in the art may make numerous variations and modifications.

[0369] Those skilled in the art should understand that any set is a subset of itself; the empty set is a subset of any set; part or all of a mathematical expression, mathematical equation, or mathematical inequality can be simplified, transformed, or rewritten to a certain extent (for example, merging constant terms, exchanging two additive terms, exchanging two multiplication terms, changing the sign of a term and moving it from the left side to the right side of the equation or inequality, changing the sign of a term and moving it from the right side to the left side of the equation or inequality, etc.), and the mathematical expressions, mathematical equations, or mathematical inequalities before and after simplification, transformation, or rewriting can be considered equivalent.

[0370] It should be understood that the above embodiments of the present disclosure can be implemented through software, hardware, or a combination of software and hardware. For example, the various components within the user equipment in the above embodiments can be implemented through a variety of devices, including but not limited to: analog circuit devices, digital 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.

[0371] In this disclosure, "base station" may refer to a mobile communication data and / or control switching center with a certain transmission power and coverage area, and may include functions such as resource allocation and scheduling, data reception and transmission, etc. "User equipment" may refer to a user's mobile terminal, such as a mobile phone or laptop, that can wirelessly communicate with a base station or micro base station.

[0372] In addition, the embodiments of the present disclosure disclosed herein can be implemented on a computer program product. More specifically, the computer program product is a product as follows: having a computer-readable medium, on which a computer program logic is encoded, and when executed on a computing device, the computer program logic provides relevant operations to implement the above-mentioned technical solutions of the present disclosure. 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 the embodiments of the present disclosure. This arrangement of the present disclosure is typically provided as software, code and / or other data structures arranged or encoded on a computer-readable medium such as an optical medium (e.g., CD-ROM), a floppy disk or a hard disk, or other media such as firmware or microcode on one or more ROM or RAM or PROM chips, or downloadable software images, shared databases, etc. in one or more modules. Software or firmware or this configuration can 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 disclosure.

[0373] In addition, each functional module or each feature of the user equipment used in each of the above embodiments can be implemented or executed by a circuit, which is typically one or more integrated circuits. The circuits 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, a discrete gate or transistor logic, or a discrete hardware component, or any combination of the above devices. The 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 may be configured by a digital circuit, or may be configured by a logic circuit. In addition, when, due to advances in semiconductor technology, advanced technologies that can replace current integrated circuits emerge, the present disclosure may also use integrated circuits obtained using the advanced technologies.

[0374] Although the present disclosure has been described above with reference to the preferred embodiments thereof, it will be understood by those skilled in the art that various modifications, substitutions, and changes may be made to the present disclosure without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure should not be limited by the above-described embodiments, but by the appended claims and their equivalents.

Claims

1. A method performed by a user equipment UE, characterized in that include: receiving a UE capability query message from the base station, and A UE capability information message is transmitted to a base station, wherein the UE capability information message includes one of a first PSCCH receiving capability and a second PSCCH receiving capability, wherein: The first PSCCH receiving capability indicates that the number of PSCCHs that can be received in one time slot is and one of which is the maximum transmission bandwidth configuration corresponding to the corresponding UE channel bandwidth in sideline single carrier operation, and The second PSCCH receiving capability indicates that the number of PSCCHs that can be received in one time slot is as well as one of which It is a predefined maximum transmission bandwidth configuration corresponding to the UE channel bandwidth.

2. A user equipment, comprising: processor; as well as Memory, which stores instructions, Wherein, when the instructions are executed by the processor, the method according to claim 1 is performed.

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