Method executed by user equipment and user equipment

Abstract

According to the present disclosure, a method executed by a user equipment is proposed, characterized by comprising: receiving DCI for scheduling a sidewalk dynamic grant or for activating a type 2 sidewalk configuration grant; and if a first sideline symbol of a sideline allocation provided by the DCI is not earlier than a symbol # imgabs0 #, transmitting a PSSCH corresponding to the sideline allocation and a PSCCH associated with the PSSCH, otherwise, ignoring the DCI, wherein the symbol # imgabs1 # is the next side row symbol of # imgabs2 # second after the reception of the last symbol of the PDCCH carrying the DCI is finished by the CP, the # imgabs3 # comprises a shared spectrum preparation time interval # imgabs4 #, and the authorized spectrum, the # imgabs5 # and the unauthorized spectrum and the # imgabs6 # are predefined CPE lengths determined according to the corresponding subcarrier interval configuration.

Description

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 performed 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 evolution system based on LTE (Long-Term Evolution) wireless access technology, and a 5G system or its evolution 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 (e.g., eNB, also such as gNB). The radio link (radio link) from the base station to the UE can be called a downlink (DL, downlink), the radio link from the UE to the base station can be called an uplink (UL, uplink), and the radio link between UEs can be called a sidelink (SL, sidelink). The interface for wireless transmission and / or reception between the base station and the UE can be called a Uu interface (e.g., an NR-Uu interface based on NR; and an 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 perform transmission or reception in one or more BWPs (Bandwidth part) in each of one or more carriers, where each carrier may be an uplink carrier, or may be a downlink carrier, or may be a sidecarrier.

[0003] One or more positioning and / or ranging technologies may be supported in a wireless communication system. When positioning and / or ranging the UE, information such as the position (e.g., absolute position; or relative position) and / or direction of the UE may be calculated and / or estimated based on measurements of downlink signals, and / or measurements of uplink signals, and / or measurements of sidelink signals.

[0004] In order to support various services in wireless communication systems, such as communication, positioning, and part or all of ranging, a series of problems need to be solved, such as operation on licensed spectrum and / or unlicensed spectrum; for example, operation on paired spectrum and / or unpaired spectrum; for example, channel access mechanism; for example, initial access; for example, structure of physical layer channels and / or signals; for example, transmission and / or reception based on unicast, groupcast, multicast, and broadcast; for example, physical layer control information and / or signaling process (for example, including synchronization process, scheduling mechanism, and feedback mechanism, etc.); for example, signal measurement; for example, higher layer control information and / or signaling process; for example, allocation and / or management of resources; for example, multi-carrier operation, such as carrier aggregation and / or dual connectivity. Connectivity); for example, multi-antenna transmission and / or reception; for example, beam-based operation; for example, multi-point coordination; for example, relaying operation; for example, mobility management; for example, interoperability and / or coexistence between different systems. Summary of the invention

[0005] 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 determining the sideline transmission preparation process time corresponding to a sideline dynamic license or a type 2 sideline configuration license, an additional sideline transmission preparation process time introduced due to the application of CPE is determined according to a predefined CPE length related to the subcarrier spacing configuration, so that the base station can schedule the UE's sideline transmission in the unlicensed spectrum without performing unlicensed spectrum operations (for example, without initializing and / or sharing any COT) without increasing the complexity of UE implementation.

[0006] According to the present disclosure, a method performed by a user equipment is proposed, characterized by comprising: receiving a DCI for scheduling a sidewalk dynamic grant or for activating a type 2 sidewalk configuration grant; and if the first sidewalk symbol of a sidewalk allocation provided by the DCI is not earlier than symbol The PSSCH corresponding to the sideline allocation and its associated PSCCH are transmitted, otherwise the DCI is ignored; wherein the symbol The CP starts after the last symbol of the PDCCH carrying the DCI is received. The next side symbol of the second, where the Turtle contains a shared spectrum preparation time interval Among them, for the licensed spectrum, and, for unlicensed spectrum, It is a predefined CPE length determined according to the corresponding subcarrier spacing configuration.

[0007] 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.

[0008] Therefore, the present disclosure provides a method, wherein, when determining the sideline transmission preparation process time corresponding to a sideline dynamic license or a type 2 sideline configuration license, an additional sideline transmission preparation process time introduced due to the application of CPE is determined based on a predefined CPE length related to the subcarrier spacing configuration, so that the base station can schedule the UE's sideline transmission in the unlicensed spectrum without performing unlicensed spectrum operations (for example, without initializing and / or sharing any COT) and without increasing the complexity of UE implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] 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:

[0010] Figure 1 A flowchart corresponding to a method executed by a user equipment according to the first embodiment of the present disclosure is shown.

[0011] Figure 2 A block diagram of a UE (User Equipment) involved in the present disclosure is shown. DETAILED DESCRIPTION

[0012] The present disclosure is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the present disclosure should not be 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 the understanding of the present disclosure.

[0013] The following uses the 5G (or NR ("New Radio"), or 5G NR) wireless communication system specifications developed by 3GPP (3rd Generation Partnership Project) and its subsequent evolutionary versions (e.g., 5G Advanced) as example application environments to specifically describe multiple implementations of the present disclosure. However, it should be noted that the present disclosure is not limited to the following implementations, but is applicable to more 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, LTE-Advanced Pro, etc.

[0014] The terms given in the present disclosure may be named differently in different wireless communication systems, but unified terms are used in the present disclosure, and when applied to a specific system, they can be replaced with terms used in the corresponding system.

[0015] In all embodiments and implementations of the present disclosure, unless otherwise specified:

[0016] "Node" and "communication node" are interchangeable.

[0017] "Node" may refer to a UE, or a network node (eg, a base station), or another form of communication node.

[0018] "Base station" may refer to a base station of a 4G or its evolution system, such as an eNB

[0019] (E-UTRAN Node B, E-UTRAN Node B, where E-UTRAN stands for Evolved Universal Terrestrial Radio Access Network); or, "base station" may refer to a base station of a 5G or its evolved system, 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 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, "base station" may refer to a base station of other forms.

[0020] "Band" can refer to "frequency band" (or "frequency band").

[0021] "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 a physical layer (or referred to as "layer 1"), the "higher layer" may refer to a MAC (Medium Access Control) layer, and / or an RLC (Radio Link Control) layer, and / or a PDCP (Packet Data Convergence Protocol) layer, and / or a PC5-RRC (Radio Resource Control) layer, and / or a PC5-S layer, and / or an RRC layer, and / or other protocol layers or protocol sublayers. If not otherwise specified, the reference protocol layer or reference protocol sublayer may be a physical layer. Where no ambiguity is caused, the "higher layer" may also be referred to as a "higher layer".

[0022] "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. If not specifically stated, the reference protocol layer or reference protocol sublayer may be the MAC layer. In the absence of ambiguity, the "lower layer" may also be referred to as the "lower layer".

[0023] "Signaling" can refer to signaling at the physical layer, or signaling at a higher layer.

[0024] The configuration information corresponding to a "configured" parameter can be determined based on one or more of the following:

[0025] ■ In a communication node (eg, UE), one protocol layer (eg, RRC layer) provides the configuration information to another protocol layer (eg, physical layer).

[0026] ■A protocol layer (e.g., RRC layer) of a communication node provides the configuration information to a peer protocol layer of another communication node (e.g., RRC signaling including the configuration information is transmitted from a base station to a UE; or PC5-RRC signaling including the configuration information is transmitted from one UE to another UE).

[0027] ■ The configuration information is preset in a specific storage location in a communication node (such as UE), or the configuration information is preset in other storage locations accessible by the communication node. In this case, the parameter can also be called a "pre-configured" parameter.

[0028] • "Parameter" may refer to a physical layer parameter, or a higher layer parameter, for example, a parameter configured at the RRC layer.

[0029] "Number" and "index" can be interchanged. For example, the number of an RB (resource block) can also be called the index of the RB; for example, "numbering an RB as 0" can also be expressed as "indexing an RB as 0".

[0030] The elements in a set (or array, or list, or sequence, etc.) 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 The elements t0, t1, ..., and t N-1 They may correspond to indexes 0, 1, ..., and N-1 respectively.

[0031] Elements in a collection (or array, or list, or sequence, etc.) can be represented by their index. For example, an RB with index 0 can be called "RB0".

[0032] An index corresponding to an object (e.g., a subcarrier, a time slot, a cyclic shift, etc.) (e.g., the index of the object in a set, an array, a list, or a sequence) may be used as an “identifier” (ID) of the object.

[0033] In signaling, an object may be indicated by an object index.

[0034] If no corresponding 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 more transmissions.

[0035] 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 not later than) the time corresponding to t1, the time corresponding to t1 is earlier than (or not later than) the time corresponding to t2, and so on.

[0036] Constant T c It can be defined as: c =1 / (Δf max ·N f ), where Δf max =480·10 3 Hz,N f =4096.

[0037] The constant κ can be defined as: κ = T s / T c =64, where T s =1 / (Δf ref ·N f，ref ), Δf ref =15·10 3 Hz,N f，ref =2048.

[0038] Δf may represent a subcarrier spacing (SCS) of a carrier (e.g., a downlink carrier; another example, an uplink carrier; another example, a sidecarrier) or a bandwidth segment (e.g., a downlink bandwidth segment; another example, an uplink bandwidth segment; another example, a sidecar bandwidth segment). For example, Δf = 15 kHz; another example, Δf = 30 kHz; another example, Δf = 60 kHz; another example, Δf = 120 kHz.

[0039] μ can represent the SCS configuration corresponding to an SCS. For example, μ=0 can correspond to Δf=15kHz; for example, μ=1 can correspond to Δf=30kHz; for example, μ=2 can correspond to Δf=60kHz; for example, μ=3 can correspond to Δf=120kHz.

[0040] "Symbol" may refer to an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0041] A resource can correspond to one or more of the following:

[0042] ■ One or more parameters in the time domain, for example, the starting symbol of the resource; another example, the starting time slot of the resource; another example, the number of symbols occupied by the resource; another example, the number of time slots occupied by the resource.

[0043] ■ One or more parameters in the frequency domain. For example, the starting subchannel of the resource; another example, the starting RB 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.

[0044] ■ 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 another example, a cyclic shift pair value or a corresponding cyclic shift pair index corresponding to the resource.

[0045] ■One or more parameters in the spatial domain. For example, the layer to which the resource corresponds, where a "layer" may refer to one of the one or more layers to which a TB (TransportBlock) is mapped in spatial multiplexing. The mapping may also be considered as the mapping of the codeword corresponding to the TB to the one or more layers.

[0046] "RB" may refer to a PRB (physical resource block), a VRB (virtual resource block), a CRB (common resource block), or an IRB (Interlaced Resource Block); accordingly, "RB index" may refer to a PRB index, a VRB index, a CRB index, or an IRB index.

[0047] Δ(x1, x2) may represent an offset between x1 and x2 (or, “offset of x2 with respect to x1”; or, “offset from x1 to x2”, offset fromx1 t0 x2), wherein x1 and x2 may be respectively the values ​​of two comparable parameters (or variables), or may 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) may 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, wherein the time slot index may be a physical time slot index, or a logical time slot index (e.g., the index of the corresponding time slot in the time slot set of the resource pool).

[0048] • The offset between two subcarriers may refer to the offset between the center frequencies of the two subcarriers.

[0049] Modulo Operation can be defined as r≡a mod N, where

[0050] ■r is the remainder.

[0051] ■a=N×q+r,where q can be called the integer quotient of a and N.

[0052] ■0≤r<|N|.

[0053] The round 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.

[0054] A “physical time slot” may refer to a time slot belonging to a physical time slot set, wherein the physical time slot set may be all time slots in a continuous period of time (e.g., a frame period with a duration of 1024 frames); the physical time slots in the physical time slot set may be indexed as 0, 1, ... in chronological order.

[0055] 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 by T FNP ) may correspond to a predefined or configured parameter, or may be determined based on one or more predefined or configured parameters, for example, T FNP = 1024 frames, and 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 may 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 written 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 )).

[0056] A bit string of size (or "length") L bits (e.g., 'b0b1...b L-1 '), the leftmost bit (i.e., b0) can correspond to the most significant bit, and accordingly, the rightmost bit (i.e., b L-1 ) may correspond to the least significant bit.

[0057] A bit string of size (or "length") L bits (e.g., 'b0b1...b L-1 '), the leftmost bit (i.e., b0) may correspond to the least significant bit, and accordingly, the rightmost bit (i.e., b L-1 ) can correspond to the most significant bit.

[0058] A "transmission" may correspond to the transmission of one or more physical channels, and / or the transmission of one or more physical signals. For example, each of the one or more physical channels may be a PSCCH (Physical Sidelink Control Channel), or a PSSCH (Physical Sidelink Shared Channel), or a PSFCH (Physical Sidelink Feedback Channel), or a PSBCH (Physical Sidelink Broadcast Channel), or another physical channel; each of the one or more physical signals may be an S-PSS (Sidelink primary synchronization signal), or an S-SSS (Sidelink secondary synchronization signal), or a DM-RS (Demodulation reference signals), or a CSI-RS (Channel-state information reference signal), or a PT-RS (Phase-tracking reference signals), or an SL PRS (Sidelink Positioning Reference Signal). Signal, side positioning reference signal), or another physical signal.

[0059] ·A transmission consisting of more than one physical channel or physical signal multiplexed in the same resource (e.g., time-frequency resource) may correspond to a specific resource multiplexing pattern. For example, the transmission of an S-PSS, an S-SSS, and a PSBCH multiplexed in the same time slot may be referred to as an "S-SS / PSBCH block transmission" (or an "S-SSB transmission"); for another example, the transmission of a PSCCH and an associated PSSCH multiplexed in the same time slot may be referred to as a "PSCCH / PSSCH transmission" (or a "PSSCH / PSCCH transmission"); for another example, the transmission of a PSCCH and an associated SL PRS multiplexed in the same time slot may be referred to as a "PSCCH / SL PRS transmission" (or a "SL PRS / PSCCH transmission"); for another example, 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 may be referred to as a "PSCCH / PSSCH / SL PRS transmission" (or referred to as a "PSSCH / PSCCH / SL PRS transmission").

[0060] "Sidewalk" can refer to NR sidewalk.

[0061] "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; for another example, "NR sideline transmission" may include transmission for NR sideline communication; for another example, "NR sideline measurement" may include measurement for NR sideline communication.

[0062] “NR sideline operation” may refer to operations including part or all of NR sideline reception, NR sideline transmission, and NR sideline measurement.

[0063] "Carrier" can refer to a sidecarrier, an uplink carrier, or a downlink carrier.

[0064] • "Bandwidth segment" can refer to a sidelink bandwidth segment, or an upstream bandwidth segment, or a downstream bandwidth segment.

[0065] · "Resource pool" can refer to the sideline resource pool.

[0066] A physical sidelink channel (or signal) may refer to an NR physical sidelink channel (or signal), for example, “PSSCH” may refer to “NR PSSCH”.

[0067] A sidelink grant can be a sidelink dynamic grant, a sidelink configured grant, or any other form of sidelink grant.

[0068] A "sidewalk configuration permission" can be a "type 1 sidewalk configuration permission" (type

[0069] A “type 1 sidelink configured grant”, or a “type 2 sidelink configured grant”, or another form of sidelink configured grant.

[0070] The “release” operation on a side-trip configuration permission may also be referred to as the “deactivation” operation on the side-trip configuration permission.

[0071] "Dynamic sidelink grant" and "dynamic sidelink grant"

[0072] Can be interchanged.

[0073] "Sidelink configuration grant" and "configured sidelink grant"

[0074] Can be interchanged.

[0075] "Type 1 sidelink configured grant" and "sidelink configured grant type 1" are interchangeable.

[0076] "Type 2 sidelink configured grant" and "sidelink configured grant type 2" are interchangeable.

[0077] A “sidelink identity” (sidelink ID) may refer to a layer 1 sidelink identifier or a layer 2 sidelink identifier.

[0078] A "destination ID" may refer to a sideline identifier. For example, a destination ID indicated in a multicast transmission may be used to identify a group corresponding to the multicast transmission; for another example, a destination ID indicated in a broadcast transmission may be used to identify a service corresponding to the broadcast transmission; for 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

[0079] The destination identifier may be a source identifier of the intended receiving UE. A source identifier (source ID) may be a sideline identifier. For example, a source identifier indicated in a unicast (or multicast, or broadcast) transmission may be used to identify the UE performing the transmission.

[0080] A priority level may correspond to a priority value. For example, a priority level may correspond to a priority value of 0, and another priority level may correspond to a priority value of 1.

[0081] A priority 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 unequal. For example, a priority may correspond to a priority value of 0 in the physical layer and a priority value of 1 in a higher layer; for example, another priority may correspond to a priority value of 0 in the physical layer and a priority value of 1 in a higher layer;

[0082] The priority may correspond to a priority value of 1 at the physical layer, and a priority value of 2 at a higher layer. The relationship between the priority order and the corresponding priority value may be:

[0083] As the priority value increases, the priority (or "priority order") decreases. 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 higher than the priority of the second side transmission.

[0084] The relationship between the priority order and the corresponding priority value may be: as the priority value increases, the priority (or referred to as "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.

[0085] In some aspects of the present disclosure, 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.

[0086] In some aspects of the present disclosure, a "sideline timeslot" may refer to a timeslot configured with specific sideline resources, wherein the "specific sideline resources" may include part or all of the resources for PSSCH, PSCCH, and PSFCH; the "specific sideline resources" may not include resources for S-SSB.

[0087] In some aspects of the present disclosure, 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, ...

[0088] In some aspects of the present disclosure, a "logical time slot" may refer to a time slot that may be configured as a set of time slots belonging to a resource pool.

[0089] In some aspects of the present disclosure, a "sidetrack time slot" may refer to a time slot belonging to a set of time slots in a resource pool.

[0090] In some aspects of the present disclosure, a "sidetrack time slot" may refer to a time slot that may be configured as a set of time slots belonging to a resource pool.

[0091] In some aspects of the present disclosure, a SCI (Sidelink Control Information) carried in a sidelink transmission (e.g., PSCCH; or PSSCH; or PSCCH / PSSCH) may be referred to as "one SCI", where the SCI may refer to a first-stage SCI (1 st -stage SCI), or second-stage SCI (2 nd -stageSCI), or the first-stage SCI and its associated second-stage SCI.

[0092] In some aspects of the present disclosure, an SCI with a corresponding SCI format X carried in a sidelink transmission (e.g., PSCCH; for example, PSSCH; for example, 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.

[0093] 5G can operate in both licensed spectrum, such as band n78 (3300MHz-3800MHz), and unlicensed spectrum, such as band n46 (5150MHz-5925MHZ).

[0094] A 5G-capable node may support "operation with shared spectrum channel access". For example, on an unlicensed spectrum, "operation with shared spectrum channel access" may include a "channel access procedure" performed on a "shared-spectrum channel" or a "multi-channel access procedure" performed on multiple shared-spectrum channels, wherein the "channel access procedure" or the "multi-channel access procedure" may be used to evaluate whether part or all of the corresponding one or more shared spectrum channels can be used to perform one or more transmissions (e.g., downlink transmission, uplink transmission, or sidelink transmission), wherein a shared spectrum channel may include several contiguous RBs. The result of a channel access procedure may 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 may 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), and accordingly, each of the one or more shared spectrum channels can be called an "LBT channel", and 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.

[0095] A 5G-supporting node may support "operation without shared spectrum channel access", for example, on the licensed spectrum, the node may not perform the "channel access procedure" and / or the "multi-channel access procedure".

[0096] In some aspects of the disclosure, "operation with shared spectrum channel access" may refer to operation on an unlicensed spectrum.

[0097] In some aspects of the present disclosure, “operation with shared spectrum channel access” may include part or all of NR sidelink operation, NR downlink operation, and NR uplink operation.

[0098] In some aspects of the disclosure, "operation without shared spectrum channel access" may refer to operation on a licensed spectrum.

[0099] In some aspects of the present disclosure, “operation without shared spectrum channel access” may include part or all of NR sidelink operation, NR downlink operation, and NR uplink operation.

[0100] After executing the "channel access procedure" or the "multi-channel access procedure", the (one or more) transmissions performed on the corresponding (one or more) channels may be referred to as "channel occupancy" (Channel Occupancy, CO), and the corresponding duration may be referred to as "channel occupancy time" (Channel Occupancy Time, COT). A COT may be shared between one or more communication nodes. The time corresponding to the COT may include the duration of the (one or more) transmissions performed by the one or more communication nodes on the corresponding (one or more) channels. The time corresponding to the COT may include the time corresponding to the transmission gap between the (one or more) transmissions (for example, when the duration of the transmission gap is less than or equal to 25us). In some aspects of the present disclosure, a COT may not exceed a predefined or configured maximum value (for example, referred to as maximum COT, maximum COT, or simply MCOT).

[0101] For "operations with shared spectrum channel access" (or, for unlicensed spectrum), a shared spectrum channel may correspond to a carrier, or a portion of the carrier. For example, the UE channel bandwidth corresponding to a carrier c1 may be 20 MHz, and accordingly, a shared spectrum channel may correspond to the carrier c1. For another example, the UE channel bandwidth of a carrier c2 is 40 MHz, and accordingly, a shared spectrum channel may correspond to the lower frequency 20 MHz in the carrier c2, and another shared spectrum channel may correspond to the other 20 MHz (i.e., the higher frequency 20 MHz) in the carrier c2. Operations (e.g., transmission; for example, reception; for example, measurement) on the carrier c2 (or other carriers whose corresponding UE channel bandwidth is greater than 20 MHz) may be referred to as "wideband operations".

[0102] For "operations with shared spectrum channel access" (or, for unlicensed spectrum), in order to ensure fair sharing of the channel 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. Restrictions on PSD and / or OCB (if any) may be different in different countries and / or regions.

[0103] In some aspects of the present disclosure, the frequency range to which “operation with shared spectrum channel access” applies may include one or more of the following:

[0104] FR1 (Frequency Range 1).

[0105] FR2-1 (Frequency Range 2-1).

[0106] FR2-2 (Frequency Range 2-2).

[0107] FR2 (Frequency Range 2). This may include FR2-1 and FR2-2, for example.

[0108] In some aspects of the present disclosure, the frequency range to which “operation without shared spectrum channel access” applies may include one or more of the following:

[0109] ·FR1.

[0110] ·FR2-1.

[0111] ·FR2-2.

[0112] FR2. This may include, for example, FR2-1 and FR2-2.

[0113] A wireless transmission may correspond to one or more "interlaces", and accordingly, the wireless transmission may be referred to as an "interlace-based transmission". For example, for the subcarrier spacing configuration μ, we can define For example, the corresponding interleaving 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, can be equal to 10; for example, for μ = 1, It may be equal to 5. The definition of interleaving (and corresponding transmission based on interleaving) may only apply to some subcarrier spacing configurations but not to other subcarrier spacing configurations.

[0114] An interleaved-RB-based transmission including one or more RBs may be referred to as an "interlaced-RB-based transmission" or an "interlace RB-based transmission". Compared to a transmission corresponding to one or more contiguous RBs (e.g., called a "contiguous RB-based transmission", a transmission based on interleaved RBs may occupy a larger bandwidth for a given number of occupied RBs, thereby better meeting the OCB restriction.

[0115] A sidelink bandwidth segment may be configured to use "interleaved RB-based transmission" or for "contiguous RB-based transmission". For example, when a higher layer parameter (e.g., transmissionStructureForPSCCHandPSSCH) in the sidelink bandwidth segment is configured as "contigousRB", the sidelink bandwidth segment may be used for "contiguous RB-based transmission". For another example, when the higher layer parameter is configured as "interlaceRB", the sidelink bandwidth segment may be used for "interleaved RB-based transmission".

[0116] The allocation of sideline resources may include one or more of the following:

[0117] Sidelink resource allocation based on network scheduling (e.g., a UE determines the resources used for sidelink transmission according to the scheduling of the base station). This may be referred to as "sidelink resource allocation mode 1" or "sidelink resource allocation scheme 1".

[0118] Sidelink resource allocation based on UE autonomous resource selection (e.g., a UE autonomously determines its resources for sidelink transmission). This may be referred to as "sidelink resource allocation mode 2" or "sidelink resource allocation scheme 2".

[0119] In the time domain, for the subcarrier spacing configuration μ, the start time of symbol l in a subframe can be recorded as in,

[0120] · It can be a time relative to the start time of the subframe (that is, the start time of symbol 0 of the subframe), and accordingly,

[0121] · The unit can be seconds.

[0122] · in It can represent the number of symbols in a time slot. It can indicate the number of time slots in a subframe.

[0123] The length (or duration) of symbol l can be written as (For example, In some aspects of the present disclosure, the It can be defined as in, may correspond to the length of the core OFDM symbol in the symbol l, It may correspond to the length of the CP (Cyclic Prefix) in the symbol 1.

[0124] In some aspects of the present disclosure, a sideline transmission (e.g., a PSCCH / PSSCH transmission; as another example, a PSFCH transmission; as another example, an S-SSB transmission; as another example, an SL PRS transmission) may apply CPE (Cyclic Prefix Extension).

[0125] In some aspects of the present disclosure, a sideline transmission (e.g., a PSCCH / PSSCH transmission; as another example, a PSFCH transmission; as another example, an S-SSB transmission; as another example, an SL PRS transmission) may not apply CPE.

[0126] In some aspects of the present disclosure, the CPE may be adapted for use in unlicensed spectrum.

[0127] In some aspects of the present disclosure, the CPE may be applicable to and only applicable to unlicensed spectrum.

[0128] In some aspects of the present disclosure, the CPE may be adapted for operation with shared spectrum channel access.

[0129] In some aspects of the present disclosure, a CPE may be applicable for and only applicable for operation with shared spectrum channel access.

[0130] Without CPE, a sideline transmission with a start symbol of l can start at t=

[0131] In the case of CPE, a sideline transmission with a start symbol of l can start at in,

[0132] ·T ext It can represent the length of CPE (for example, called "CPE length" or "CPE duration"). For example, the CPE length is T ext Second.

[0133] · It can represent the corresponding CPE starting time (or called “CPE starting position”).

[0134] The side transmission A time-continuous signal can be defined as in,

[0135] ■ It can be that the side transmission time continuous signal.

[0136] ■p may represent the corresponding antenna port.

[0137] ■μ may represent a corresponding subcarrier spacing configuration. For example, the μ may be a subcarrier spacing configuration configured in the sideline bandwidth segment where the sideline transmission is located.

[0138] In some aspects of the present disclosure, for a given sideline transmission starting with symbol l, a CPE length (T ext ) can uniquely correspond to a CPE start time In this sense, determining the CPE length of a sideline transmission may be equivalent to determining the corresponding CPE start time, and vice versa.

[0139] In some aspects of the present disclosure, T ext =0 may correspond to the situation where CPE is not applied.

[0140] In some aspects of the present disclosure, the CPE length T ext It may be determined at least in part based on one or more of the following:

[0141] A "first CPE length parameter", i.e. the corresponding subcarrier spacing configuration μ.

[0142] A "second CPE length parameter" (e.g., denoted by i ext ),in,

[0143] ■i ext It can be called a "CPE index".

[0144] ■In some aspects of the present disclosure, i ext Can be an integer greater than or equal to 0.

[0145] ■In some aspects of the present disclosure, i ext Can be an integer greater than or equal to 1.

[0146] One or more according to the i ext and / or the parameters determining μ, for example including the parameters and parameters part or all of, of which,

[0147] ■In some aspects of the present disclosure, It can indicate the number of symbols corresponding to CPE.

[0148] ■In some aspects of the present disclosure, It can represent a time interval related to the channel access type.

[0149] ■ In some aspects of the present disclosure, for a given i ext The value of can be determined at least in part based on said μ.

[0150] ■ In some aspects of the present disclosure, for a given i ext The value of It may be a predefined or configured value determined at least in part based on said μ.

[0151] ■ In some aspects of the present disclosure, for a given i ext The value of can be determined at least in part based on said μ.

[0152] ■ In some aspects of the present disclosure, for a given ext The value of It may be a predefined or configured value determined at least in part based on said μ.

[0153] ■ In some aspects of the present disclosure, for a given value of μ, each of the i ext The value of can be used to determine a unique, The value and a A combination of values ​​(e.g., a predefined or configured combination).

[0154] ■ In some aspects of the present disclosure, for a given ext Each value of μ can be used to determine a unique, The value and a A combination of values ​​(e.g., a predefined or configured combination).

[0155] ■ In some aspects of the present disclosure, a given, a said i ext The combination of a value of and a value of μ can be used to determine a unique,

[0156] The value and a A combination of values ​​(e.g., a predefined or configured combination).

[0157] A "third CPE length parameter", i.e. the starting symbol l of the corresponding sideline transmission.

[0158] In some aspects of the present disclosure, and / or It can be defined at least in part by some or all of the rows and some or all of the columns in Table 1, where a “-” in a cell can mean “not applicable”, e.g. ext =0, no definition is required and / or

[0159] Table 1

[0160]

[0161] In some aspects of the present disclosure, a "first default CPE length" (e.g., denoted as ),in, Head In this case, the corresponding i ext Can be a predefined or configured value (for example, i ext =0), or may be determined in other ways, or may not be explicitly defined.

[0162] In some aspects of the present disclosure, the CPE length T ext It can be determined according to the following formula:

[0163]

[0164] In some aspects of the present disclosure, the CPE length T ext It can be determined according to the following formula:

[0165]

[0166] In some aspects of the present disclosure, for a given sideline transmission and corresponding subcarrier spacing configuration, the CPE index i ext Each value of can be used to determine a unique CPE length and a corresponding CPE start time.

[0167] In some aspects of the present disclosure, a set of all CPE indexes that can be used for a sideline transmission may be referred to as a "candidate CPE index set" corresponding to the sideline transmission.

[0168] In some aspects of the present disclosure, a candidate CPE index set corresponding to a sideline transmission may be determined at least in part based on one or more of the following:

[0169] The physical channel or physical signal corresponding to the sideline transmission (for example, PSCCH / PSSCH, or PSFCH, or S-SSB).

[0170] The layer 1 priority corresponding to the sidelink transmission.

[0171] ·The subcarrier spacing configuration corresponding to the sideline transmission.

[0172] The type of COT corresponding to the side transmission (for example, the side transmission is in a COT that is already used for other side transmissions, or the COT used by the side transmission is initialized for the side transmission).

[0173] In some aspects of the present disclosure, a candidate CPE index set corresponding to a sideline transmission using a subcarrier spacing configuration μ may be equal to a "full set of CPE indices" (e.g., denoted as ), or it may be the set A predefined or configured subset of

[0174] The collection It can be a set predefined or configured for the subcarrier spacing configuration μ.

[0175] For different values ​​of μ, the set can be different or the same. For example, for μ = 0, can be equal to {0, 1, 2, 3, 4, 5, 6}; for example, for μ = 0, can be equal to {1, 2, 3, 4, 5, 6}; for example, for μ = 1, can be equal to {0, 1, 2, 3, 4, 5, 6, 7, 8}; for example, for μ = 1, can be equal to {1, 2, 3, 4, 5, 6, 7, 8}; for example, for μ = 2, can be equal to {0, 1, 2, 3}; for example, for μ = 2, can be equal to {1, 2, 3}. For example, for any value of μ, can be equal to {0, 1, 2, 3, 4, 5, 6, 7, 8}; for any value of μ, It can be equal to {1, 2, 3, 4, 5, 6, 7, 8}.

[0176] In some aspects of the present disclosure, for a given PSCCH / PSSCH transmission, the UE may select a CPE index for the PSCCH / PSSCH transmission from its corresponding candidate CPE index set in a certain manner (eg, randomly selected).

[0177] In some aspects of the present disclosure, a CPE index i corresponding to a sideline transmission ext It may be determined at least in part based on one or more of the following:

[0178] · The channel corresponding to the sideline transmission. For example, for PSCCH / PSSCH and S-SSB, the CPE index may be determined in the same manner or in a different manner.

[0179] The type of the sidewalk grant corresponding to the sidewalk transmission. For example, for a sidewalk dynamic grant and a type 2 sidewalk configuration grant, the CPE index may be determined in the same way or in a different way.

[0180] The resource allocation mode of the sidelink transmission. For example, for sidelink resource allocation mode 1 and sidelink resource allocation mode 2, the CPE index may be determined in the same manner or in a different manner.

[0181] Corresponding channel access types. For example, for type 1 channel access and type 2 channel access, the CPE index may be determined in the same way or in a different way.

[0182] A positioning-related reference signal transmitted and / or received on a sidelink may be referred to as a SL PRS (or "SL-PRS").

[0183] The resources corresponding to an SL PRS transmission (e.g., time-frequency resources) may be referred to as an SL PRS resource. An SL PRS resource may correspond to a continuous frequency domain resource (e.g., one or more continuous RBs; or, for example, one or more continuous subchannels) and a continuous time domain resource (e.g., one or more continuous symbols in a time slot), wherein the SL PRS resource may occupy the same or different subcarrier subsets in the one or more continuous RBs (or, the one or more continuous subchannels) in different symbols.

[0184] A SL PRS resource can belong to a resource pool. One or more SL PRS resources can be configured in a resource pool. A resource pool that can be used to transmit SL PRS and PSSCH can be called a "shared SL PRS resource pool". A resource pool that can be used to transmit SL PRS but cannot be used to transmit PSSCH can be called a "dedicated SL PRS resource pool".

[0185] Embodiment 1

[0186] Combine the following Figure 1 To illustrate the method executed by the user equipment in the first embodiment of the present disclosure.

[0187] Figure 1A flowchart corresponding to a method executed by a user equipment according to the first embodiment of the present disclosure is shown.

[0188] like Figure 1 As shown, in the first embodiment of the present disclosure, the steps performed by the user equipment UE include: step S101 and step S103.

[0189] Specifically, in step S101, a side travel permission (eg, denoted as ) related information (for example, ).

[0190] Said It can be a sidewalk dynamic grant, or it can be a type 2 sidewalk configuration grant.

[0191] In some aspects of the present disclosure, the Part or all of may correspond to one or more higher-layer parameters.

[0192] In some aspects of the present disclosure, the physical downlink control channel (PDCCH) may be received and the downlink control information (DCI) may be determined based at least in part on an indication in the DCI (Downlink Control Information) carried in the PDCCH. part or all of.

[0193] In some aspects of the present disclosure, the subcarrier spacing configuration (for example, denoted as μ DL ) can be in the downlink bandwidth fragment (for example, denoted as b DL ) is configured in .

[0194] In some aspects of the present disclosure, the DCI may correspond to a DCI format that may be used to schedule one or more sideline transmissions, such as DCI format 3_0, or DCI format 3_2.

[0195] In some aspects of the present disclosure, DCI format 3_0 may be used to schedule PSCCH and PSSCH.

[0196] In some aspects of the present disclosure, DCI format 3_0 may be used to schedule PSCCH, PSSCH, and SL PRS. For example, this may be applicable to a shared SL PRS resource pool.

[0197] In some aspects of the present disclosure, DCI format 3_2 may be used to schedule SL PRS. For example, this may be applicable to a dedicated SL PRS resource pool.

[0198] In some aspects of the present disclosure, DCI format 3_2 may be used to schedule PSCCH and SL PRS. For example, this may be applicable to a dedicated SL PRS resource pool.

[0199] In some aspects of the present disclosure, the The type of grant (e.g., "sidewalk dynamic grant" or "type 2 sidewalk configuration grant") may be determined at least in part based on one or more of the following:

[0200] • An RNTI (Radio Network Temporary Identifier) ​​for scrambling the CRC (Cyclic redundancy check) of the DCI.

[0201] · NDI (New Data Indicator) indicated in the DCI.

[0202] In some aspects of the present disclosure, the RNTI applicable to DCI format 3_0 may include SL-RNTI and / or SL-CS-RNTI (or referred to as SLCS-RNTI).

[0203] In some aspects of the present disclosure, the RNTI applicable to DCI format 3_2 may include SL-PRS-RNTI and / or SL-PRS-CS-RNTI.

[0204] In some aspects of the present disclosure, for example, when the When it is a side-trip dynamic permission, the DCI may be used to indicate (or referred to as "providing" or "scheduling") the In this case, the DCI may be referred to as a "scheduling DCI".

[0205] In some aspects of the present disclosure, for example, when the When it is a type 2 sideline configuration permission, the DCI can be used to activate the In this case, the DCI may be referred to as an "activating DCI".

[0206] In some aspects of the present disclosure, the Can contain a resource pool (for example, denoted by e SL), wherein the resource pool e SL In a sideband bandwidth segment (for example, denoted by b SL ) is configured in .

[0207] In some aspects of the present disclosure, the sideline bandwidth segment b SL The subcarrier spacing configuration configured in (for example, denoted as μ SL ) can be used as the resource pool e SL The subcarrier spacing configuration of a sideline transmission (or, a corresponding sideline channel or a sideline signal), for example, the sideline transmission can be a PSCCH transmission and its associated PSSCH transmission, or can be a PSCCH transmission, a PSSCH transmission associated with the PSCCH transmission, and an SL PRS transmission associated with the PSCCH transmission, or can be a PSCCH transmission and its associated SL PRS transmission, or can be an SL PRS transmission, and so on.

[0208] In some aspects of the present disclosure, the resource pool e SL The index of may be indicated by the DCI (eg, by a “resource pool index” field in the DCI).

[0209] In some aspects of the present disclosure, in the sideline bandwidth segment b SL A type 1 side start symbol (for example, denoted as ),in,

[0210] · May correspond to a higher-layer parameter (e.g., sl-StartSymbol).

[0211] · It can be represented by the index of its corresponding type 1 sideline start symbol in a corresponding time slot.

[0212] In some aspects of the present disclosure, Applicable to type 1 sideline timeslots.

[0213] In some aspects of the present disclosure, Applicable to type 1a sideline timeslots.

[0214] In some aspects of the present disclosure, Can be applied to type 1b sideline timeslots.

[0215] In some aspects of the present disclosure, in the sideline bandwidth segment b SL A type 2a side start symbol (for example, denoted as ) and / or a type 2b side start symbol (e.g. ),in,

[0216] · May correspond to a higher-layer parameter (eg, sl-startingSymbolFirst; or, for example, startingSymbolFirst).

[0217] · It can be represented by the index of its corresponding type 2a sideline start symbol in a corresponding time slot.

[0218] In some aspects of the present disclosure, Applicable to type 1 sideline timeslots.

[0219] In some aspects of the present disclosure, Applicable to type 1a sideline timeslots.

[0220] In some aspects of the present disclosure, Can be applied to type 1b sideline timeslots.

[0221] · May correspond to a higher-layer parameter (eg, sl-startingSymbolSecond; or, for example, startingSymbolSecond).

[0222] · It can be represented by the index of its corresponding type 2b sideline start symbol in a corresponding time slot.

[0223] In some aspects of the present disclosure, Applicable to type 1 sideline timeslots.

[0224] In some aspects of the present disclosure, Applicable to type 1a sideline timeslots.

[0225] In some aspects of the present disclosure, Not applicable to Type 1b sideline timeslots.

[0226] In some aspects of the present disclosure, if the sl-startingSymbolFirst and the sl-startingSymbolSecond are not configured, the sl-StartSymbol must be configured.

[0227] In some aspects of the present disclosure, for example, when the sl-startingSymbolFirst and the sl-startingSymbolSecond are configured, the and stated Can satisfy

[0228] In some aspects of the present disclosure, for example, when the sl-StartSymbol and the sl-startingSymbolSecond are configured, the and stated Can satisfy

[0229] In some aspects of the present disclosure, if the sl-startingSymbolFirst and the sl-startingSymbolSecond are configured, the sl-StartSymbol may be ignored.

[0230] In some aspects of the present disclosure, if the sl-startingSymbolFirst is configured, the sl-StartSymbol may be ignored.

[0231] In some aspects of the present disclosure, if the sl-startingSymbolFirst and the sl-startingSymbolSecond are configured, the first sideline symbol in a type 1 sideline time slot may be the symbol

[0232] In some aspects of the present disclosure, if the sl-startingSymbolFirst and the sl-startingSymbolSecond are configured, and the sl-StartSymbol is not configured, the first sideline symbol in a type 1 sideline time slot may be the symbol

[0233] In some aspects of the present disclosure, if the sl-startingSymbolFirst and the sl-startingSymbolSecond are configured, there may be two candidate starting symbols (or "candidate sideline starting symbols") in a type 1a sideline time slot, for example, the symbols and the symbol

[0234] In some aspects of the present disclosure, if the sl-startingSymbolFirst and the sl-startingSymbolSecond are configured, there may be a candidate starting symbol in a type 1b side slot, such as the symbol

[0235] In some aspects of the present disclosure, the first sidelink symbol in a type 1 sidelink time slot may be the symbol

[0236] In some aspects of the present disclosure, if the sl-StartSymbol is configured, the first sideline symbol in a type 1 sideline time slot may be the symbol

[0237] In some aspects of the present disclosure, if the sl-StartSymbol is configured, and the sl-startingSymbolFirst and the sl-startingSymbolSecond are not configured, the first sideline symbol in a type 1 sideline time slot may be the symbol

[0238] In some aspects of the present disclosure, if the sl-startingSymbolFirst and the sl-startingSymbolSecond are not configured, the first sideline symbol in a type 1 sideline time slot may be the symbol

[0239] In some aspects of the present disclosure, if the sl-startingSymbolFirst and the sl-startingSymbolSecond are not configured, there may be one candidate starting symbol in a type 1 side slot, such as the symbol

[0240] In some aspects of the present disclosure, if the sl-startingSymbolFirst and the sl-startingSymbolSecond are not configured, there may be one candidate starting symbol in a type 1a side slot, such as the symbol

[0241] In some aspects of the present disclosure, if the sl-startingSymbolFirst and the sl-startingSymbolSecond are not configured, there may be one candidate starting symbol in a type 1b side slot, such as the symbol

[0242] In some aspects of the present disclosure, if the sl-StartSymbol is configured, the sl-startingSymbolFirst may be ignored.

[0243] In some aspects of the present disclosure, if the sl-StartSymbol is configured, the sl-startingSymbolFirst and the sl-startingSymbolSecond may be ignored.

[0244] In some aspects of the present disclosure, if the sl-StartSymbol and the sl-startingSymbolSecond are configured, and the sl-startingSymbolFirst is not configured, then there may be two candidate start symbols in a type 1a side slot, for example, the symbols and the symbol

[0245] In some aspects of the present disclosure, if the sl-StartSymbol and the sl-startingSymbolSecond are configured, there may be a candidate starting symbol in a type 1b side slot, such as the symbol

[0246] In some aspects of the present disclosure, the Can correspond to N SA sidelink allocations, for example, are recorded in chronological order as SA0, SA1, ..., Among them, N SA It can be a satisfying 1≤N SA ≤N MAX，SA An integer.

[0247] In some aspects of the present disclosure, the N SA Each of the N sidelink allocations may be referred to as a "sidelink sub-allocation", in which case the N SA The "sidewalk sub-allocation" can be called the The corresponding single "side row allocation" N SA A "side-by-side sub-allocation".

[0248] In some aspects of the present disclosure, the N MAX，SA Can be an integer greater than or equal to 1. For example, N MAX，SA =2, accordingly, N SA =1, or, N SA =2; for example, N MAX，SA =3, accordingly, N SA =1, or, N SA =2, or N SA =3.

[0249] In some aspects of the present disclosure, the N MAX，SA may correspond to a predefined or configured parameter (eg, the resource pool e SLA parameter configured in ), or it may be indicated in the DCI, or it may be determined in other ways.

[0250] In some aspects of the present disclosure, the N SA may correspond to a predefined or configured parameter (eg, the resource pool e SL configurable in ).

[0251] In some aspects of the present disclosure, the N SA It may be indicated by the DCI, for example, the N SA It can be determined according to the indication information in a "Time resource assignment" field in the DCI.

[0252] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i Can be used for a side transmission (for example, SL i ),in,

[0253] ·SL i It can be the resource pool e SL A side transmission in the.

[0254] ·SL i The time slot (or SL i The starting time slot) can be recorded as T SL，i .

[0255] In some aspects of the present disclosure, SL i It can be a PSCCH / PSSCH transmission, for example, a PSSCH transmission (for example, denoted as PSSCH i ) and its associated PSCCH transmission (e.g., denoted as PSCCH i ). For example, this may be applicable to the case where the DCI corresponds to DCI format 3_0.

[0256] In some aspects of the present disclosure, SL i It can be a PSCCH / PSSCH / SL PRS transmission, for example, a PSCCH transmission (for example, denoted as PSCCH i ), the PSSCH transmission associated with the PSCCH transmission (for example, denoted as PSSCH i ), and the SL PRS transmission associated with the PSCCH transmission (for example, denoted as SLPRS i ). For example, this may be applicable to the case where the DCI corresponds to DCI format 3_0.

[0257] In some aspects of the present disclosure, SLi It can be a PSCCH / SL PRS transmission, for example, a SL PRS transmission (for example, denoted as SLPRS i ) and its associated PSCCH transmission (e.g., denoted as PSCCH i ). For example, this may be applicable to the case where the DCI corresponds to DCI format 3_2.

[0258] In some aspects of the present disclosure, for DCI format 3_0, and for i∈{0, 1, ..., N SA -1}, the UE can determine the SL by itself i Is it a PSCCH / PSSCH transmission or a PSCCH / PSSCH / SL PRS transmission.

[0259] In some aspects of the present disclosure, for i=0, PSSCH i One TB carried may correspond to the initial transmission of the TB.

[0260] In some aspects of the present disclosure, for i=0, PSSCH i One TB carried may correspond to a retransmission of the TB.

[0261] In some aspects of the present disclosure, for i∈{1, ..., N SA -1},PSSCH i One TB carried may correspond to the initial transmission of the TB.

[0262] In some aspects of the present disclosure, for i∈{1, ..., N SA -1},PSSCH i One TB carried may correspond to a retransmission of the TB.

[0263] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SL i Corresponding frequency parameters (such as the starting subchannel, or the number of subchannels) and / or time parameters (such as the time slot T SL，i ) can be determined at least in part based on an indication in the DCI.

[0264] For example, time slot T SL，0 The time slot offset (e.g., K) may be indicated at least in part by a field (e.g., a "Time gap" field) in the DCI. SL Specifically, for example, the time slot T SL，0 It can be the resource pool e SL The start time is no earlier than The first sideline time slot of

[0265] ·T DL It may be the start time of the downlink time slot where the PDCCH is located (or simply referred to as "the downlink time slot carrying the DCI").

[0266] ·T TA It may be a timing advance value corresponding to a TAG (Timing Advance Group) to which the serving cell where the DCI is located belongs.

[0267] ·K SL It can represent the time slot where the DCI is located and the time slot T SL，0 The time slot offset between them, wherein "the time slot where the DCI is located" and "the downlink time slot where the PDCCH is located" can be the same time slot.

[0268] ·T slot It can indicate the duration of a sideline time slot.

[0269] For example, for i>0 (for example, when N SA >1), time slot T SL，i According to the time slot T SL，0 and time slot offset Δ(T SL，0 , T SL，i ) is determined, wherein the time slot offset Δ(T SL，0 , T SL，i ) can be determined according to the indication information in the DCI (for example, the information indicated by the "time resource allocation" field in the DCI).

[0270] In some aspects of the present disclosure, in the time domain, for i∈{0, 1, ..., N SA -1}, SA i Corresponding time slot T SL，i For example, "the first side symbol of SA0" may refer to time slot T SL，0 The first side row symbol in , and vice versa.

[0271] In some aspects of the present disclosure, in the time domain, for i∈{0, 1, ..., N SA -1}, for example, when SL i is a PSCCH / PSSCH transmission (or, when SL i is a PSCCH / PSSCH / SL PRS transmission), SL i The corresponding "PSSCH resource allocation" can start at time slot T SL，i A symbol in ).

[0272] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, symbol The sideline bandwidth segment b may be based at least in part on SL Configuration information and / or the resource pool e SL For example, Can be defined as one or more of the following:

[0273] ·

[0274] If the type 1 candidate sideline start symbol condition is met, then

[0275] If the type 2a candidate sideline start symbol condition is met, then

[0276] If the type 2b candidate sideline start symbol condition is met, then

[0277] If the type 3a candidate sideline start symbol condition is met, then

[0278] If the type 3b candidate sideline start symbol condition is met, then

[0279] in, Can be a predefined integer (for example, Another example: Another example: ).

[0280] The type 1 candidate side row start symbol condition may include one or more of the following (for example, in any combination of “and” or “or”):

[0281] The side bandwidth segment b SL The sl-StartSymbol is configured in.

[0282] The side bandwidth segment b SL The sl-startingSymbolFirst and the sl-startingSymbolSecond are not configured.

[0283] The type 2a candidate side row start symbol condition may include one or more of the following (for example, in any combination of "and" or "or"):

[0284] The side bandwidth segment b SL The sl-StartSymbol is configured in.

[0285] The side bandwidth segment b SL The sl-startingSymbolFirst and the sl-startingSymbolSecond are configured.

[0286] In the symbol The previously executed channel access is successful, wherein the channel access may be to transfer the symbol Channel access is performed using the first sidelink symbol of a sidelink assignment.

[0287] The type 2b candidate side row start symbol condition may include one or more of the following (for example, in any combination of "and" or "or"):

[0288] The side bandwidth segment b SL The sl-StartSymbol is not configured.

[0289] The side bandwidth segment b SL The sl-startingSymbolFirst and the sl-startingSymbolSecond are configured.

[0290] In the symbol The previously executed channel access is successful, wherein the channel access may be to transfer the symbol Channel access is performed using the first sidelink symbol of a sidelink assignment.

[0291] The type 3a candidate side row start symbol condition may include one or more of the following (for example, in any combination of "and" or "or"):

[0292] The side bandwidth segment b SL The sl-StartSymbol is configured in.

[0293] The side bandwidth segment b SL The sl-startingSymbolFirst and the sl-startingSymbolSecond are configured.

[0294] In the symbol A previously performed channel access failed, wherein the channel access may be to transfer the symbol Channel access is performed using the first sidelink symbol of a sidelink assignment.

[0295] The type 3b candidate side row start symbol condition may include one or more of the following (for example, in any combination of "and" or "or"):

[0296] The side bandwidth segment b SL The sl-StartSymbol is not configured.

[0297] The side bandwidth segment b SL The sl-startingSymbolFirst and the sl-startingSymbolSecond are configured.

[0298] In the symbol A previously performed channel access failed, wherein the channel access may be to transfer the symbol Channel access is performed using the first sidelink symbol of a sidelink assignment.

[0299] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, and for PSSCH i For each antenna port of the PSSCH, when mapping the corresponding block of complex-valued symbols to resource elements in one or more resource blocks (e.g., virtual resource blocks), the PSSCH i A "first PSSCH reference replica symbol" associated with ) for the PSSCH i The resource element is copied to the symbol immediately adjacent to the The previous symbol (i.e. symbol ), among which,

[0300] · "The PSSCH i The resource element "may include the PSSCH i The resource elements to which the associated one or more reference signals are mapped include, for example, part or all of the DM-RS, PT-RS, and CSI-RS.

[0301] The symbol Can be a symbol in, Can be a predefined integer (for example, Another example: Another example: ).

[0302] The symbol It can be called the PSSCH i The associated "second PSSCH reference replica symbol".

[0303] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, in the PSCCH i When the complex-valued symbol block is mapped to resource elements in one or more resource blocks (eg, virtual resource blocks), the PSCCH i A "first PSCCH reference replica symbol" associated with ) for the PSCCH i The resource element is copied to the symbol immediately adjacent to the The previous symbol (i.e. symbol ), among which,

[0304] · "The PSCCH i The resource element "may include the PSCCH i The resource elements to which the associated one or more reference signals are mapped include, for example, part or all of the DM-RS, PT-RS, and CSI-RS.

[0305] The symbol Can be a symbol in, Can be a predefined integer (for example, Another example: Another example: ).

[0306] The symbol It can be called the PSCCH i The associated "second PSCCH reference replica symbol".

[0307] In some aspects of the present disclosure, the can be equal to the Correspondingly, for i∈{0, 1, ..., N SA -1}, symbol and Symbol Can be the same symbol.

[0308] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA iCan include PSSCH i Associated DM-RS.

[0309] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i PSSCH may not be included i Associated DM-RS.

[0310] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i Can include PSSCH i The symbol where the associated DM-RS is located.

[0311] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i PSSCH may not be included i The symbol where the associated DM-RS is located.

[0312] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i Can include PSSCH i The associated "first PSSCH reference replica symbol".

[0313] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i PSSCH may not be included i The associated "first PSSCH reference replica symbol".

[0314] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i Can include PSSCH i The associated "second PSSCH reference replica symbol".

[0315] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i PSSCH may not be included i The associated "second PSSCH reference replica symbol".

[0316] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i May include PSCCH i Associated DM-RS.

[0317] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i PSCCH may not be included i Associated DM-RS.

[0318] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i May include PSCCH i The symbol where the associated DM-RS is located.

[0319] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i PSCCH may not be included i The symbol where the associated DM-RS is located.

[0320] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i May include PSCCH i The associated "first PSCCH reference replica symbol".

[0321] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i PSCCH may not be included i The associated "first PSCCH reference replica symbol".

[0322] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i May include PSCCH i The associated "second PSCCH reference replica symbol".

[0323] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i PSCCH may not be included i The associated "second PSCCH reference replica symbol".

[0324] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, SA i The first side symbol (for example, ) can be defined as one of the following:

[0325] · Corresponding time slot T SL，iThe first sideline symbol in .

[0326] · Corresponding to PSSCH i The associated "first PSSCH reference replica symbol".

[0327] · Corresponding to PSSCH i The associated "second PSSCH reference replica symbol".

[0328] · Corresponding to PSCCH i The associated "first PSCCH reference replica symbol".

[0329] · Corresponding to PSCCH i The associated "second PSCCH reference replica symbol".

[0330] ·

[0331] ·

[0332] ·

[0333] ·

[0334] ·

[0335] ·

[0336] If the type 1 candidate sideline start symbol condition is met, then

[0337] If the type 1 candidate sideline start symbol condition is met, then

[0338] If the type 1 candidate sideline start symbol condition is met, then

[0339] If the type 2a candidate sideline start symbol condition is met, then

[0340] If the type 2a candidate sideline start symbol condition is met, then

[0341] If the type 2a candidate sideline start symbol condition is met, then

[0342] If the type 2b candidate sideline start symbol condition is met, then

[0343] If the type 2b candidate sideline start symbol condition is met, then

[0344] If the type 2b candidate sideline start symbol condition is met, then

[0345] If the type 3a candidate sideline start symbol condition is met, then

[0346] If the type 3a candidate sideline start symbol condition is met, then

[0347] If the type 3a candidate sideline start symbol condition is met, then

[0348] If the type 3b candidate sideline start symbol condition is met, then

[0349] If the type 3b candidate sideline start symbol condition is met, then

[0350] If the type 3b candidate sideline start symbol condition is met, then

[0351] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, for SL i is a case of PSCCH / PSSCH transmission and SL i This is a PSCCH / PSSCH / SL PRS transmission situation. The definitions of may be the same or may be different.

[0352] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, for SL i is a case of PSCCH / PSSCH transmission and SL i This is a case of PSCCH / SL PRS transmission. The definitions of may be the same or may be different.

[0353] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, for SL i It is a PSCCH / PSSCH / SL PRS transmission situation and SL i This is a case of PSCCH / SL PRS transmission. The definitions of may be the same or may be different.

[0354] In some aspects of the present disclosure, the and stated May not be applicable to SL0, SL1, ... and This is the case of PSCCH / SL PRS transmission.

[0355] In addition, in step S103, the side travel permission (i.e., the side travel permission) is executed. ) related to one or more operations. For example, under certain conditions, the SL0, the SL1, ..., and the For example, under certain conditions, the For another example, under certain conditions, the DCI may be ignored.

[0356] Specifically, for example, for sidewalk dynamic permission and type 2 sidewalk configuration permission (ie, when the is a sidewalk dynamic grant or a type 2 sidewalk configuration grant), perform one or more of the following:

[0357] ·If i=0, SA i If the type 1 side transmission preparation process conditions are met, the SL0 is transmitted.

[0358] ·If i=0, SA i If the type 1 side transmission preparation process condition is met, the SL0, the SL1, ..., and the

[0359] ·If i=0, SA i If the type 1 side transmission preparation process conditions are not met, the

[0360] ·If i=0, SA i If the type 1 sidelink transmission preparation process conditions are not met, the DCI is ignored.

[0361] ·If i=0, SA i If the type 1 side transmission preparation process conditions are not met, the SL0 will not be transmitted.

[0362] ·If i=0, SA i If the type 1 side transmission preparation process condition is not met, the SL0, the SL1, ..., and the

[0363] ·For i∈{0, 1, ..., N SA -1}, if SA tIf the conditions of the type 1 side transmission preparation process are met, SL is transmitted i .

[0364] ·For i∈{0, 1, ..., N SA -1}, if SA i If the conditions of the type 1 side transmission preparation process are not met, the SL will not be transmitted. i .

[0365] If for any i∈{0, 1, ..., N SA -1}i,SA i If the type 1 side transmission preparation process condition is met, the SL0, the SL1, ..., and the

[0366] If for any i∈{0, 1, ..., N SA -1}i,SA i If the type 1 side transmission preparation process conditions are not met, the

[0367] If for any i∈{0, 1, ..., N SA -1}i,SA i If the type 1 sidelink transmission preparation process conditions are not met, the DCI is ignored.

[0368] If for any i∈{0, 1, ..., N SA -1}i,SA i If the type 1 side transmission preparation process condition is not met, the SL0, the SL1, ..., and the

[0369] If for all i∈{0, 1, ..., N SA -1}i, SA i If the type 1 side transmission preparation process conditions are not met, the

[0370] If for all i∈{0, 1, ..., N SA -1}i,SA i If neither of the type 1 sideline transmission preparation process conditions is met, the DCI is ignored.

[0371] If for all i∈{0, 1, ..., N SA -1}i,SA iIf none of the above mentioned conditions of the type 1 side transmission preparation process are met, then the SL0, the SL1, ..., and the

[0372] to SA i (i∈{0,1,...,N SA -1}), the type 1 side transmission preparation process condition may include one or more of the following items (for example, any combination in the form of "and" or "or"):

[0373] ·symbol No earlier than symbol

[0374] The symbol Later than the symbol

[0375] The symbol Later than or equal to the sign

[0376] to SA i (i∈{0,1,...,N SA -1}), Can be defined as one or more of the following:

[0377] · Corresponding to the SA i The first side symbol (i.e. symbol ).

[0378] · Corresponding time slot T SL，i The first sideline symbol in .

[0379] · Corresponding to PSSCH i The associated "first PSSCH reference replica symbol".

[0380] · Corresponding to PSSCH i The associated "second PSSCH reference replica symbol".

[0381] · Corresponding to PSCCH i The associated "first PSCCH reference replica symbol".

[0382] · Corresponding to PSCCH i The associated "second PSCCH reference replica symbol".

[0383] ·

[0384] ·

[0385] ·

[0386] ·

[0387] ·

[0388] ·

[0389] If the type 1 candidate sideline start symbol condition is met, then

[0390] If the type 1 candidate sideline start symbol condition is met, then

[0391] If the type 1 candidate sideline start symbol condition is met, then

[0392] If the type 2a candidate sideline start symbol condition is met, then

[0393] If the type 2a candidate sideline start symbol condition is met, then

[0394] If the type 2a candidate sideline start symbol condition is met, then

[0395] If the type 2b candidate sideline start symbol condition is met, then

[0396] If the type 2b candidate sideline start symbol condition is met, then

[0397] If the type 2b candidate sideline start symbol condition is met, then

[0398] If the type 3a candidate sideline start symbol condition is met, then

[0399] If the type 3a candidate sideline start symbol condition is met, then

[0400] If the type 3a candidate sideline start symbol condition is met, then

[0401] If the type 3b candidate sideline start symbol condition is met, then

[0402] If the type 3b candidate sideline start symbol condition is met, then

[0403] If the type 3b candidate sideline start symbol condition is met, then

[0404] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, for SL i is a case of PSCCH / PSSCH transmission and SL i This is a PSCCH / PSSCH / SL PRS transmission situation. The definitions of may be the same or may be different.

[0405] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, for SL i is a case of PSCCH / PSSCH transmission and SL i This is a case of PSCCH / SL PRS transmission. The definitions of may be the same or may be different.

[0406] In some aspects of the present disclosure, for i∈{0, 1, ..., N SA -1}, for SL i It is a PSCCH / PSSCH / SL PRS transmission situation and SL i This is a case of PSCCH / SL PRS transmission. The definitions of may be the same or may be different.

[0407] The symbol Can be defined as one of the following:

[0408] The symbol The CP starts after the reception of the last symbol of the PDCCH is completed. The next sideline symbol of seconds.

[0409] The symbol The CP starts after the reception of the last symbol of the PDCCH is completed. The next sideline symbol of the second belongs to the resource pool eSL.

[0410] The symbol The CP starts at least after the last symbol of the PDCCH is received. The next sideline symbol of seconds.

[0411] The symbol The CP starts at least after the last symbol of the PDCCH is received. The next sideline symbol of the second belongs to the resource pool eSL.

[0412] The symbol The CP starts after the reception of the last symbol of the PDCCH is completed. First sideline symbol of the second.

[0413] The symbol The CP starts after the reception of the last symbol of the PDCCH is completed. The first of the seconds belongs to the resource pool e SL Sideways symbol.

[0414] The symbol The CP starts at least after the last symbol of the PDCCH is received. First sideline symbol of the second.

[0415] The symbol The CP starts at least after the last symbol of the PDCCH is received. The first of the seconds belongs to the resource pool e SL Sideways symbol.

[0416] Said Can be defined as one of the following:

[0417] ·

[0418] ·

[0419] In some aspects of the present disclosure, the It can be defined as

[0420] In some aspects of the present disclosure, the It can be defined as

[0421] In some aspects of the present disclosure, the 2，1 Can correspond to a predefined or configured parameter.

[0422] In some aspects of the present disclosure, the 2，1 Can be an integer greater than 0, for example, d 2，1 =1.

[0423] In some aspects of the present disclosure, the μ prep1Can be a subcarrier spacing configuration.

[0424] In some aspects of the present disclosure, the μ prep1 Can correspond to a predefined or configured parameter.

[0425] In some aspects of the present disclosure, the μ prep1 can be based at least in part on the μ DL and / or the μ SL Sure.

[0426] In some aspects of the present disclosure, the μ prep1 can be equal to min(μ DL , μ SL ).

[0427] In some aspects of the present disclosure, the μ prep1 can be equal to max(μ DL , μ SL ).

[0428] In some aspects of the present disclosure, the μ prep1 It can be a "first reference subcarrier spacing configuration set" (for example, denoted as MU ref1 ) so that the The largest subcarrier spacing configuration.

[0429] In some aspects of the present disclosure, the μ prep1 It can be the set MU ref1 In the The smallest subcarrier spacing configuration.

[0430] In some aspects of the present disclosure, the μ prep1 It can be the set MU ref1 In the The largest subcarrier spacing configuration.

[0431] In some aspects of the present disclosure, the μ prep1 It can be the set MU ref1 In the The smallest subcarrier spacing configuration.

[0432] In some aspects of the present disclosure, the μ prep1 It can be the set MU ref1 The maximum subcarrier spacing configuration in .

[0433] In some aspects of the present disclosure, the μ prep1 It can be the set MU ref1 The minimum subcarrier spacing configuration in .

[0434] In some aspects of the present disclosure, the set MU ref1 It can be a predefined or configured subcarrier spacing configuration set.

[0435] In some aspects of the present disclosure, the set MU ref1 The μ may be included in DL and / or the μ SL .

[0436] In some aspects of the present disclosure, the set MU ref1 can be equal to {μ DL , μ SL}.

[0437] In some aspects of the present disclosure, the N2 may correspond to a predefined or configured parameter.

[0438] In some aspects of the present disclosure, N2 may be an integer greater than 0.

[0439] In some aspects of the present disclosure, the N2 may be based on the μ prep1 Determine, for example, prep1 =0, 1, 2, 3, and N2 can be equal to 10, 12, 23, 36 respectively.

[0440] In some aspects of the present disclosure, the It may be determined at least in part based on one or more of the following:

[0441] The corresponding spectrum, for example, whether it is licensed spectrum or unlicensed spectrum.

[0442] The corresponding frequency range, for example, FR1 or FR2.

[0443] Whether the corresponding operation involves shared spectrum channel access, for example, whether the corresponding operation is an operation without shared spectrum channel access or an operation with shared spectrum channel access.

[0444] Whether the CPE is enabled in the corresponding operation.

[0445] ·The SL0, the SL1, ..., and the The resource multiplexing mode (or called "type"), for example, the resource multiplexing mode is PSCCH / PSSCH, PSCCH / PSSCH / SL PRS, PSCCH / SL PRS, or SL PRS.

[0446] A reference CPE length (e.g. ).

[0447] In some aspects of the present disclosure, under certain conditions (e.g., for operations with shared spectrum channel access), the can be equal to the And the latter can be a single device that does not depend on the SL0, the SL1, ..., and the For example, this may apply in operation with shared spectrum channel access where the base station does not support channel access on the corresponding unlicensed spectrum, because in this case the base station may not know the actual CPE length of a sideline transmission.

[0448] In some aspects of the present disclosure, under certain conditions (e.g., for operation without shared spectrum channel access), the can be equal to 0. In some aspects of the present disclosure, this can be equivalent to Defined as

[0449] In some aspects of the present disclosure, the The symbol corresponding to the "third CPE length parameter" can be recorded as

[0450] In some aspects of the present disclosure, the symbol It can be the time slot T SL，0 A symbol in .

[0451] In some aspects of the present disclosure, the It can be the SL0, the SL1, ..., and the One of the where z0∈{0, 1, ..., N SA -1}; As an example, the z0 can be predefined as a CPE length determined by z0=0), and accordingly, the symbol It can be the In this case, the May or may not be equal to the The actual CPE length applied (if CPE is applied).

[0452] In some aspects of the present disclosure, the may be a CPE length determined for a hypothetical side transmission, wherein the starting symbol of the hypothetical side transmission may be the symbol

[0453] In some aspects of the present disclosure, the Can correspond to a predefined or configured parameter.

[0454] In some aspects of the present disclosure, the Can be defined as one or more of the following:

[0455] · Corresponding time slot T SL，0 The first sideline symbol in .

[0456] · Corresponding to the "first PSSCH reference copy symbol" associated with PSSCH0.

[0457] · Corresponding to the "second PSSCH reference copy symbol" associated with PSSCH0.

[0458] · Corresponding to the "first PSCCH reference copy symbol" associated with PSSCH0.

[0459] · Corresponding to the "second PSCCH reference copy symbol" associated with PSSCH0.

[0460] ·

[0461] ·

[0462] ·

[0463] ·

[0464] ·

[0465] ·

[0466] ·

[0467] If the type 1 candidate sideline start symbol condition is met, then

[0468] If the type 1 candidate sideline start symbol condition is met, then

[0469] If the type 1 candidate sideline start symbol condition is met, then

[0470] If the type 2a candidate sideline start symbol condition is met, then

[0471] If the type 2a candidate sideline start symbol condition is met, then

[0472] If the type 2a candidate sideline start symbol condition is met, then

[0473] If the type 2b candidate sideline start symbol condition is met, then

[0474] If the type 2b candidate sideline start symbol condition is met, then

[0475] If the type 2b candidate sideline start symbol condition is met, then

[0476] If the type 3a candidate sideline start symbol condition is met, then

[0477] If the type 3a candidate sideline start symbol condition is met, then

[0478] If the type 3a candidate sideline start symbol condition is met, then

[0479] If the type 3b candidate sideline start symbol condition is met, then

[0480] If the type 3b candidate sideline start symbol condition is met, then

[0481] If the type 3b candidate sideline start symbol condition is met, then

[0482] In some aspects of the present disclosure, the The corresponding "first CPE length parameter" may be equal to a "first reference subcarrier spacing configuration" (for example, denoted as μ ref1 ).

[0483] In some aspects of the present disclosure, the μ ref1 It can be the μ SL .

[0484] In some aspects of the present disclosure, the μ ref1 It can be the μ DL .

[0485] In some aspects of the present disclosure, the μ ref1 It can be the μ prep1 .

[0486] In some aspects of the present disclosure, the μ ref1 It can be a predefined subcarrier spacing configuration. For example, μ ref1= 0. For example, μ ref1 =1. For example, μ ref1 =2.

[0487] In some aspects of the present disclosure, the μ ref1 Can be a configured subcarrier spacing configuration.

[0488] In some aspects of the present disclosure, the μ ref1 It can be a "second reference subcarrier spacing configuration set" (for example, denoted as MU ref2 ) so that the The largest subcarrier spacing configuration.

[0489] In some aspects of the present disclosure, the μ ref1 It can be the set MU ref2 In the The smallest subcarrier spacing configuration.

[0490] In some aspects of the present disclosure, the μ ref1 It can be the set MU ref2 In the The largest subcarrier spacing configuration.

[0491] In some aspects of the present disclosure, the μ ref1 It can be the set MU ref2 In the The smallest subcarrier spacing configuration.

[0492] In some aspects of the present disclosure, the μ ref1 It can be the set MU ref2 In the The largest subcarrier spacing configuration.

[0493] In some aspects of the present disclosure, the μ ref1 It can be the set MU ref2 In the The smallest subcarrier spacing configuration.

[0494] In some aspects of the present disclosure, the μ ref1 It can be the set MU ref2 The maximum subcarrier spacing configuration in .

[0495] In some aspects of the present disclosure, the μ ref1 It can be the set MU ref2 The minimum subcarrier spacing configuration in .

[0496] In some aspects of the present disclosure, the set MU ref2It can be a predefined or configured subcarrier spacing configuration set.

[0497] In some aspects of the present disclosure, the set MU ref2 can be equal to {μ DL , μ SL}.

[0498] In some aspects of the present disclosure, the set MU ref2 Can be equal to {0, 1, 2}.

[0499] In some aspects of the present disclosure, the set MU ref2 It can be equal to a subset of {0, 1, 2} (for example, {0, 1}; for example, {0, 2}; for example, {1, 2}).

[0500] In some aspects of the present disclosure, the The corresponding "second CPE length parameter" (for example, ) can be a predefined or configured CPE index.

[0501] In some aspects of the present disclosure, the Can be a constant (for example, can be compared with the μ ref1 , the μ DL , the μ SL , and the μ prep1 Specifically, for example, Another example: Another example: Another example: Another example: Another example: Another example: Another example:

[0502] In some aspects of the present disclosure, the can be based at least in part on the μ ref1 For example, if μ ref1 =0, then For example, if μ ref1 =0, then For example, if μ ref1 =1, then For example, if μ ref1 =1, then For example, if μ ref1 =1, then For example, if μ ref1 =2, then For example, if μ ref1 =2, then

[0503] In some aspects of the present disclosure, the can be based at least in part on the μ prep1 For example, if μ prep1 =0, then For example, if μ prep1 =0, then For example, if μ prep1 =1, then For example, if μ prep1 =1, then For example, if μ prep1 =1, then For example, if μ prep1 =2, then For example, if μ prep1 =2, then

[0504] In some aspects of the present disclosure, the can be based at least in part on the μ SL For example, if μ SL =0, then For example, if μ SL =0, then For example, if μ SL =1, then For example, if μ SL =1, then For example, if μ SL =1, then For example, if μ SL =2, then For example, if μS L =2, then

[0505] In some aspects of the present disclosure, the It can be a "first reference CPE index set" (for example, denoted as CI ref1 ) so that the The largest subcarrier spacing configuration.

[0506] In some aspects of the present disclosure, the The set CI may be ref1 In the The smallest subcarrier spacing configuration.

[0507] In some aspects of the present disclosure, the The set CI may be ref1 In the The largest subcarrier spacing configuration.

[0508] In some aspects of the present disclosure, the The set CI may be ref1 In the The smallest subcarrier spacing configuration.

[0509] In some aspects of the present disclosure, the The set CI may be ref1 The largest CPE index in .

[0510] In some aspects of the present disclosure, the The set CI may be ref1 The smallest CPE index in .

[0511] In some aspects of the present disclosure, the set CI ref1 It can be a predefined or configured subcarrier spacing configuration set.

[0512] In some aspects of the present disclosure, the set CI ref1 It can be the μ ref1 The corresponding CPE index set is

[0513] In some aspects of the present disclosure, the set CI ref1 It can be the μ SL The corresponding CPE index set is

[0514] In some aspects of the present disclosure, the set CI ref1 It can be the μ prep1 The corresponding CPE index set is

[0515] In some aspects of the present disclosure, the set CI ref1 It can be a complete set of CPE indexes that are independent of the subcarrier spacing configuration, such as {0, 1, 2, 3, 4, 5, 6, 7, 8}, or {1, 2, 3, 4, 5, 6, 7, 8}.

[0516] In some aspects of the present disclosure, the set CI ref1 It can be the candidate CPE index set corresponding to the SL0.

[0517] In some aspects of the present disclosure, the set CI ref1 It can be the SL0, the SL1, ..., and the They respectively correspond to the same candidate CPE index set.

[0518] In some aspects of the present disclosure, the set CI ref1 It can be the SL0, the SL1, ..., and the The union of the corresponding candidate CPE index sets.

[0519] In some aspects of the present disclosure, the can be all the values ​​of μ and i defined in Table 1 ext The combination of values ​​determines the maximum of all CPE lengths.

[0520] In some aspects of the present disclosure, the can be all the values ​​of μ and i defined in Table 1 ext The combination of values ​​determines the smallest of all CPE lengths.

[0521] In some aspects of the present disclosure, the It can be defined according to Table 1, ref1 All corresponding i ext The value of is the largest of all CPE lengths.

[0522] In some aspects of the present disclosure, the It can be defined according to Table 1, ref1 All corresponding i ext The value of is the smallest of all CPE lengths.

[0523] In some aspects of the present disclosure, the It can be defined according to Table 1, The corresponding values ​​of μ respectively determine the largest of all CPE lengths.

[0524] In some aspects of the present disclosure, the It can be defined according to Table 1, The corresponding values ​​of μ respectively determine the smallest of all CPE lengths.

[0525] In some aspects of the present disclosure, the It can be a CPE length determined according to the definition of the "first default CPE length".

[0526] In some aspects of the present disclosure, the can be equal to the symbol next to it The duration of the previous symbol.

[0527] In some aspects of the present disclosure, for licensed spectrum, the Can be equal to 0.

[0528] In some aspects of the present disclosure, for operation without shared spectrum channel access, the Can be equal to 0.

[0529] In some aspects of the present disclosure, for unlicensed spectrum, if CPE is not enabled, the Can be equal to 0.

[0530] In some aspects of the present disclosure, for operations with shared spectrum channel access, if CPE is not applied, the Can be equal to 0.

[0531] In some aspects of the present disclosure, for unlicensed spectrum, the Can be equal to

[0532] In some aspects of the present disclosure, for operations with shared spectrum channel access, the Can be equal to

[0533] In some aspects of the present disclosure, for unlicensed spectrum, if CPE is enabled, the can be equal to the

[0534] In some aspects of the present disclosure, for operation with shared spectrum channel access, if CPE is applied, can be equal to the

[0535] In some aspects of the present disclosure, if the type 1 additional side transmission preparation process condition is met, the can be equal to the

[0536] In some aspects of the present disclosure, if the type 1 additional side transmission preparation process condition is not met, the Can be equal to 0.

[0537] In some aspects of the present disclosure, if the type 2 additional side transmission preparation process condition is not met, the can be equal to the

[0538] In some aspects of the present disclosure, if the type 2 additional side transmission preparation process condition is met, the Can be equal to 0.

[0539] In some aspects of the present disclosure, if the type 3 additional side transmission preparation process condition is not met, the can be equal to the

[0540] In some aspects of the present disclosure, if the type 3 additional side transmission preparation process condition is met, the Can be equal to 0.

[0541] In some aspects of the present disclosure, “satisfying the type 1 additional side transmission preparation procedure condition” is equivalent to “not satisfying the type 2 additional side transmission preparation procedure condition”.

[0542] In some aspects of the present disclosure, “not satisfying the type 1 additional side transmission preparation procedure condition” is equivalent to “satisfying the type 2 additional side transmission preparation procedure condition”.

[0543] In some aspects of the present disclosure, the type 1 additional side transmission preparation process condition may include one or more of the following (for example, in any combination of "and" or "or"):

[0544] The corresponding spectrum is unlicensed spectrum.

[0545] The corresponding frequency range is FR1.

[0546] The corresponding frequency range is FR2.

[0547] The corresponding frequency range is FR2-1.

[0548] The corresponding frequency range is FR2-2.

[0549] The corresponding operation is an operation with shared spectrum channel access.

[0550] The CPE is enabled in the corresponding operation.

[0551] ·The SL0, the SL1, ..., and the It is PSCCH / PSSCH transmission.

[0552] ·The SL0, the SL1, ..., and the It is PSCCH / PSSCH transmission or PSCCH / PSSCH / SL PRS transmission.

[0553] ·The SL0, the SL1, ..., and the Not a PSCCH / SL PRS transmission.

[0554] In some aspects of the present disclosure, the type 3 additional side transmission preparation process condition may include one or more of the following (for example, in any combination of "and" or "or"):

[0555] Type 3a additional side-transmission preparation process conditions.

[0556] Type 3b additional side-trip transmission preparation process conditions.

[0557] In some aspects of the present disclosure, the type 3a additional side transmission preparation process condition may include one or more of the following (for example, in any combination of "and" or "or"):

[0558] The corresponding spectrum is the licensed spectrum.

[0559] The corresponding frequency range is FR1.

[0560] The corresponding frequency range is FR2.

[0561] The corresponding frequency range is FR2-1.

[0562] The corresponding frequency range is FR2-2.

[0563] The corresponding operation is an operation without shared spectrum channel access.

[0564] The CPE is not enabled in the corresponding operation.

[0565] In some aspects of the present disclosure, the type 3b additional side transmission preparation process condition may include one or more of the following (for example, in any combination of "and" or "or"):

[0566] ·The SL0, the SL1, ..., and the Not a PSCCH / PSSCH transmission.

[0567] ·The SL0, the SL1, ..., and the It is neither PSCCH / PSSCH transmission nor PSCCH / PSSCH / SL PRS transmission.

[0568] ·The SL0, the SL1, ..., and the It is PSCCH / SL PRS transmission.

[0569] Embodiment 1 of the present disclosure may be applicable to (or, applicable to and only applicable to) sidelink resource allocation mode 1.

[0570] Embodiment 1 of the present disclosure may be applicable to operations without shared spectrum channel access.

[0571] Embodiment 1 of the present disclosure may be applicable to licensed spectrum.

[0572] Embodiment 1 of the present disclosure may be applicable to operations with shared spectrum channel access.

[0573] Embodiment 1 of the present disclosure may be applicable to unlicensed spectrum.

[0574] Embodiment 1 of the present disclosure may be executed by the physical layer protocol of the UE.

[0575] In the first embodiment of the present disclosure, “corresponding operations” may refer to operations involved in the first embodiment of the present disclosure and other related operations (if any).

[0576] In the first embodiment of the present disclosure, the “corresponding frequency spectrum” may refer to the frequency spectrum corresponding to the operations involved in the first embodiment of the present disclosure and other related operations (if any).

[0577] In the first embodiment of the present disclosure, the “corresponding frequency range” may refer to the frequency range corresponding to the operations involved in the first embodiment of the present disclosure and other related operations (if any).

[0578] In the first embodiment of the present disclosure, a type 1 sideline time slot may be a time slot that satisfies a type 1 sideline time slot condition, wherein, for time slot s, the type 1 sideline time slot condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0579] The time slot s is not used for S-SSB.

[0580] There is no S-SSB in the time slot s.

[0581] There is no S-SSB symbol in the time slot s.

[0582] The time slot s is a sideline time slot.

[0583] The time slot s can be used for sideline transmission and / or reception.

[0584] The time slot s may belong to a resource pool.

[0585] The time slot s belongs to a resource pool.

[0586] In the first embodiment of the present disclosure, a type 1a sideline time slot may be a time slot that satisfies a type 1a sideline time slot condition, wherein, for time slot s, the type 1a sideline time slot condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0587] The time slot s is a type 1 sideline time slot.

[0588] The time slot s is not used for PSFCH.

[0589] There is no PSFCH symbol in the time slot s.

[0590] In the first embodiment of the present disclosure, a type 1b sideline time slot may be a time slot that satisfies a type 1b sideline time slot condition, wherein, for time slot s, the type 1b sideline time slot condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0591] The time slot s is a type 1 sideline time slot.

[0592] The time slot s is used for PSFCH.

[0593] There are PSFCH symbols in the time slot s.

[0594] Thus, according to Embodiment 1, the present disclosure provides a method, wherein, when determining the sideline transmission preparation process time corresponding to a sideline dynamic license or a type 2 sideline configuration license, an additional sideline transmission preparation process time introduced due to the application of CPE is determined based on a predefined CPE length related to the subcarrier spacing configuration, so that the base station can schedule the UE's sideline transmission in the unlicensed spectrum without performing unlicensed spectrum operations (for example, without initializing and / or sharing any COT) without increasing the complexity of UE implementation.

[0595] [Modifications]

[0596] Next, use Figure 2 A user equipment as a variation example that can execute the method executed by the user equipment described in detail above in the present disclosure is described.

[0597] Figure 2 is a block diagram showing a user equipment UE involved in the present disclosure.

[0598] like Figure 2 As shown, 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 memories, etc. The memory 202 stores program instructions. When the instructions are executed by the processor 201, the above method performed by the user equipment described in detail in the present disclosure may be executed.

[0599] The method and the devices involved in the present disclosure have been described above in conjunction with the preferred embodiments. Those skilled in the art will appreciate that the method shown above is only exemplary, and the embodiments described above can be combined with each other without contradiction. The method of the present disclosure is not limited to the steps and sequence shown above. The network nodes and user equipment shown above may include more modules, for example, modules that can be developed or developed in the future and can be used for base stations, AMF (Access and Mobility Management Function), UPF (User Plane Function), MME (Mobility Management Entity), S-GW (Serving Gateway) or UE, etc. The various identifiers shown above are only exemplary and not restrictive, and the present disclosure is not limited to the specific information elements that are examples of these identifiers. Those skilled in the art may make many changes and modifications based on the teachings of the illustrated embodiments. Those skilled in the art should understand that part or all of a mathematical expression, mathematical equation or mathematical inequality may be simplified, transformed or rewritten to a certain extent, such as by merging constant terms, exchanging two addition terms, exchanging two multiplication terms, changing the sign of a term and moving it from the left side of the equation or inequality to the right side, changing the sign of a term and moving it from the right side of the equation or inequality to the left side, and so on; the mathematical expression, mathematical equation or mathematical inequality before and after simplification, transformation or rewriting may be considered to be equivalent.

[0600] It should be understood that the above embodiments of the present disclosure can be implemented by software, hardware, or a combination of software and hardware. For example, the various components inside the base station and user equipment in the above embodiments can be implemented by 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.

[0601] In the present disclosure, "base station" may refer to a mobile communication data and / or control exchange center with a certain transmission power and a certain coverage area, for example, including functions such as resource allocation scheduling, data reception and transmission, etc. "User equipment" may refer to a user mobile terminal, for example, including mobile phones, notebooks, etc., which can communicate wirelessly with a base station or a micro base station.

[0602] 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, a computer program logic is encoded on the computer-readable medium, 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 in one or more modules, shared databases, etc. Software or firmware or such a 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.

[0603] In addition, each functional module or each feature of the base station equipment and terminal equipment used in each of the above embodiments can be implemented or executed by a circuit, and the circuit is generally one or more integrated circuits. The circuit 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, a controller, a microcontroller or a state machine. The above-mentioned 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 the progress of semiconductor technology, an advanced technology that can replace the current integrated circuit appears, the present disclosure may also use the integrated circuit obtained by using the advanced technology.

[0604] Although the present disclosure has been illustrated above in conjunction with the preferred embodiments of the present disclosure, 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 embodiments, but by the attached claims and their equivalents.

Claims

1. A method performed by a user equipment UE, characterized in that include: Receiving a DCI for scheduling a sidewalk dynamic grant or for activating a type 2 sidewalk configuration grant; as well as, If the first sideline symbol of a sideline allocation provided by the DCI is not earlier than symbol The PSSCH corresponding to the sideline allocation and its associated PSCCH are transmitted, otherwise the DCI is ignored; wherein, The symbol The CP starts after the last symbol of the PDCCH carrying the DCI is received. The next side symbol of the second, where the Contains a shared spectrum preparation interval Among them, for the licensed spectrum, and, for unlicensed spectrum, It is a predefined CPE length determined according to the corresponding subcarrier spacing configuration.

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.

Images