Method executed by user equipment, and user equipment

Abstract

Provided in the present disclosure are a method executed by a user equipment, and a user equipment. The method executed by a user equipment comprises: in a time slot of a shared resource pool which can be used for PSSCHs and SL PRSs, determining formula (1) consecutive OFDM symbols which are occupied by an SL PRS, and transmitting the SL PRS, wherein formula (2) OFDM symbols are the latest formula (2) consecutive OFDM symbols which meet a first sidelink symbol condition, and the first sidelink symbol condition may at least partially comprise: the first OFDM symbol among the formula (2) OFDM symbols is after the last OFDM symbol of second-stage SCI associated with the SL PRS, the formula (2) OFDM symbols are not used for a PSCCH associated with the SL PRS, the formula (2) OFDM symbols are not used for a PSCCH DMRS, and the formula (2) OFDM symbols are not used for a CSI RS.

Description

Method performed by user equipment and user equipment Technical Field

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

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

[0003] One or more positioning and / or ranging technologies may be supported in a wireless communication system. When positioning and / or ranging a UE, information such as the UE's position (e.g., absolute position; or relative position) and / or direction may be calculated or estimated based on measurements of downlink signals, and / or uplink signals, and / or sidelink signals. In order to support communications on licensed and / or unlicensed spectrum, and / or positioning of UEs on licensed and / or unlicensed spectrum, a series of issues need to be addressed, such as channel access mechanisms, structures of physical layer channels and / or signals, physical layer control information and / or signaling processes (e.g., synchronization processes, or feedback and / or determination mechanisms), higher layer control information and / or signaling processes, resource allocation and / or management, and coexistence between different systems.

[0004] Prior art literature

[0005] Non-patent literature

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

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

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

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

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

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

[0012] Non-Patent Document 7: RP-182155, Revised SID: Study on NR positioning support, 3GPP TSG RAN Meeting #81

[0013] Non-Patent Document 8: RP-200218, Revised WID: NR positioning support, 3GPP TSG RAN Meeting #87-e

[0014] Non-Patent Document 9: RP-210903, Revised WID: NR Positioning Enhancements, 3GPP TSG RAN Meeting #91-e

[0015] Non-Patent Document 10: RP-222616, Revised SID on Study on expanded and improved NR positioning, 3GPP TSG RAN Meeting #97-e

[0016] Non-Patent Document 11: RP-223549, New WID on Expanded and Improved NR Positioning, 3GPP TSG RAN Meeting #98-e

[0017] Summary of the Invention

[0018] 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, by indicating the PSCCH resource index of the PSCCH corresponding to the one or more SL PRS transmissions in the DCI used to schedule one or more SL PRS transmissions in a dedicated positioning resource pool, so that the UE can determine the SL PRS resource identifier corresponding to the one or more SL PRS transmissions according to a predefined mapping relationship from the PSCCH resource index to the SL PRS resource identifier, thereby improving the signaling indication efficiency; in addition, when using an RNTI configured for a sideline configuration license for positioning to scramble the DCI, by setting the PSCCH resource index in the DCI to all 0s and all 1s, respectively, to indicate the corresponding activation and release of the type 2 sideline configuration license, the DCI signaling design is simplified and the signaling efficiency is improved.

[0019] According to the present disclosure, a method performed by a user equipment is proposed, characterized by including: receiving a PDCCH carrying DCI, and when the RNTI used to scramble the CRC of the DCI is an RNTI configured for a sideline configuration grant for positioning and the resource pool indicated in the DCI is a dedicated positioning resource pool, verifying whether the PDCCH carrying the DCI is valid for activating or releasing a type-2 sideline configuration grant for positioning, and when a field in the DCI for indicating a PSCCH resource index is set to all 0s, determining the PDCCH as a valid PDCCH for activating a type-2 sideline configuration grant for positioning, and when a field in the DCI for indicating a PSCCH resource index is set to all 1s, determining the PDCCH as a valid PDCCH for releasing a type-2 sideline configuration grant for positioning, and when it cannot be verified that the DCI is valid for activating or releasing a type-2 sideline configuration grant for positioning, discarding all information in the DCI.

[0020] 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.

[0021] Therefore, the present disclosure provides a method, which indicates the PSCCH resource index of the PSCCH corresponding to the one or more SL PRS transmissions in a DCI used to schedule one or more SL PRS transmissions in a dedicated positioning resource pool, so that the UE can determine the SL PRS resource identifier corresponding to the one or more SL PRS transmissions according to a predefined mapping relationship from the PSCCH resource index to the SL PRS resource identifier, thereby improving the signaling indication efficiency; in addition, when using an RNTI configured for a sideline configuration license for positioning to scramble the DCI, by setting the PSCCH resource index in the DCI to all 0s and all 1s, respectively, to indicate the corresponding activation and release of the type 2 sideline configuration license, the DCI signaling design is simplified and the signaling efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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:

[0023] FIG1 shows a flowchart corresponding to a method executed by a user equipment according to the first embodiment of the present disclosure.

[0024] FIG2 shows a flowchart corresponding to a method executed by a user equipment according to a second embodiment of the present disclosure.

[0025] FIG3 shows a block diagram of a user equipment involved in the present disclosure. DETAILED DESCRIPTION

[0026] The present disclosure is described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the present disclosure is not limited to the specific embodiments described below. In addition, for the sake of simplicity, detailed descriptions of known technologies that are not directly related to the present disclosure are omitted to prevent confusion in understanding the present disclosure.

[0027] The following describes multiple implementations of the present disclosure using the 5G (or NR, or 5G NR) wireless communication system specifications developed by 3GPP and their subsequent evolutionary versions (e.g., 5G Advanced) as example application environments. However, it should be noted that the present disclosure is not limited to the following implementations, but is applicable to many other wireless communication systems, such as wireless communication systems after 5G, and 4G mobile communication systems before 5G, such as LTE (Long Term Evolution), LTE-Advanced, and LTE-Advanced Pro.

[0028] The terms given in this disclosure may be named differently in different wireless communication systems, but unified terms are used in this disclosure, and when applied to a specific system, they can be replaced with terms used in the corresponding system.

[0029] In all embodiments and implementations of the present disclosure, unless otherwise specified:

[0030] ●“Node” and “communication node” are interchangeable.

[0031] ● “Node” may refer to a UE, or a network node (such as a base station), or a communication node in another form.

[0032] ●“Base station” may refer to a 4G base station, such as an eNB (E-UTRAN Node B, where E-UTRAN stands for Evolved Universal Terrestrial Radio Access Network); or a 5G base station, such as a gNB (a node that provides NR user plane and control plane protocol termination to the UE and is connected to the 5G core network through the NG interface), or an ng-eNB (a node that provides E-UTRA user plane and control plane protocol termination to the UE and is connected to the 5G core network through the NG interface, where E-UTRA stands for Evolved Universal Terrestrial Radio Access); or a base station of other forms.

[0033] ● "Lower layer(s)" may refer to one or more protocol layers or protocol sublayers below a reference protocol layer or reference protocol sublayer in a specific protocol stack. For example, if the reference protocol layer or reference protocol sublayer is the RRC layer, the "lower layer" may refer to the MAC layer and / or the physical layer; for another example, if the reference protocol layer or reference protocol sublayer is the MAC layer, the "lower layer" may refer to the physical layer. Unless otherwise specified, the reference protocol layer or reference protocol sublayer is the MAC layer. Where there is no ambiguity, the "lower layer" may also be referred to as the "lower layer."

[0034] ●“Higher layer(s)” (or upper layer(s)) may refer to one or more protocol layers or protocol sublayers above a reference protocol layer or reference protocol sublayer in a specific protocol stack (e.g., access stratum protocol stack). For example, if the reference protocol layer or reference protocol sublayer is the physical layer (or referred to as “Layer 1”), the “higher layer” may refer to the MAC (Medium Access Control) layer, and / or the RLC (Radio Link Control) layer, and / or the PDCP (Packet Data Convergence Protocol) layer, and / or the PC5-RRC (Radio Resource Control) layer, and / or the PC5-S layer, and / or the RRC layer, and / or other protocol layers or protocol sublayers. Unless otherwise specified, the reference protocol layer or reference protocol sublayer is the physical layer. Where there is no ambiguity, the “higher layer” may also be referred to as the “upper layer”.

[0035] ● “Signaling” can refer to signaling at the physical layer or signaling at higher layers.

[0036] ● “Configure” may refer to a protocol layer (eg, RRC layer) entity providing configuration information to another protocol layer (eg, physical layer) entity in a communication node (eg, UE).

[0037] ●“Configuration” may refer to a protocol layer (e.g., RRC layer) entity of a communication node (e.g., a base station) providing configuration information to a peer protocol layer entity of another communication node (e.g., a UE) (e.g., transmitting RRC signaling from a base station to a UE, which includes the configuration information; or transmitting PC5-RRC signaling from UE-A to UE-B, which includes the configuration information).

[0038] ● “Pre-configure” may refer to pre-setting corresponding configuration information in a specific storage location in a communication node (eg, UE), or pre-setting corresponding configuration information in a specific storage location accessible to the UE.

[0039] ● "(Pre)configuration" can mean configuration or pre-configuration.

[0040] • “Parameter” may refer to a higher layer parameter, for example, a parameter (pre-)configured at the RRC layer.

[0041] ●The sequence "t0, t1, ..., tN-1 " can be used to indicate a situation where N is greater than or equal to 1. For example, N=1, and accordingly, the sequence is "t0"; for another example, N=2, and accordingly, the sequence is "t0, t1".

[0042] ●A time series (e.g., t0, t1, ..., t N-1 ) or a corresponding set (e.g. {t0, t1, ..., t N-1 The elements in t0 may appear in chronological order, for example, the time corresponding to t0 is earlier than (or no later than) the time corresponding to t1, the time corresponding to t1 is earlier than (or no later than) the time corresponding to t2, and so on.

[0043] ●μ can represent the subcarrier spacing configuration (subcarrier spacing configuration), for example, μ=0; Δf can represent the corresponding subcarrier spacing (SCS), for example, μ=0 corresponds to Δf=15kHz.

[0044] ●“Symbol” may refer to an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0045] A resource can correspond to one or more of the following:

[0046] ■ One or more parameters in the time domain, such as the starting symbol of the resource, the starting time slot of the resource, the number of symbols occupied by the resource, or the number of time slots occupied by the resource.

[0047] ■ One or more parameters in the frequency domain. For example, the starting subchannel of the resource; another example, the starting RB (resource block) of the resource; another example, the starting subcarrier of the resource; another example, the number of subchannels occupied by the resource; another example, the number of RBs occupied by the resource; another example, the number of subcarriers occupied by the resource.

[0048] ■ One or more parameters in the code domain, for example, a cyclic shift value or a corresponding cyclic shift index corresponding to the resource; or a cyclic shift pair value or a corresponding cyclic shift pair index corresponding to the resource.

[0049] ■ One or more parameters in the spatial domain. For example, the layer corresponding to the resource, where a "layer" may refer to a MIMO (Multiple Input Multiple Output) layer.

[0050] A "layer" may refer to one of one or more layers to which a TB (Transport Block) is mapped in spatial multiplexing. The mapping may also be considered as mapping the codeword corresponding to the TB to the one or more layers.

[0051] ●“RB” can refer to PRB (physical resource block), or VRB (virtual resource block), or CRB (common resource block), or IRB (Interlaced Resource Block); accordingly, “RB index” can refer to PRB index, or VRB index, or CRB index, or IRB index.

[0052] ● “Number” and “index” are interchangeable. For example, the number of an RB can also be called the index of the RB. For another example, “numbering an RB to 0” can also be expressed as “indexing an RB to 0”.

[0053] The index of elements in a sequence (or array, or list, or set, etc.) may start from 0. For example, the first RB of an RB set may be referred to as RB 0 of the RB set.

[0054] ●A The bits in a bitmap (or bit string) composed of bits can be indexed as 0, 1, ... in order from MSB (Most Significant Bit) to LSB (Least Significant Bit) (or, from LSB to MSB), and Among them, the It can be referred to as the size (or "length") of the bit map, and the MSB can be the leftmost bit of the bit map, or the rightmost bit of the bit map.

[0055] An object (e.g., a subcarrier, a time slot, a cyclic shift, etc.) can be represented by its index, where the index can be an index in a set; in some cases, the index can be called an "identifier" (ID) of the object. For example, the subchannel set Each element in may represent a subchannel, and / or the subchannel index corresponding to the subchannel; for example, if the is equal to 1, then the It can represent subchannel 1, that is, the subchannel with index 1.

[0056] ● In signaling, the object can be indicated by an object index.

[0057] If no quantity is specified when referring to an object, the number of the object may be one or more. For example, in "perform transmission on a channel", the "transmission(s)" may correspond to one transmission or multiple transmissions.

[0058] Δ(x1, x2) may represent an offset between x1 and x2, where x1 and x2 may be two comparable parameters (or variables), or two possible values ​​of a parameter (or variable). For example, if x1 and x2 represent two time slots in a resource pool, Δ(x1, x2) may be defined as the difference between the physical time slot index corresponding to time slot x2 and the physical time slot index corresponding to time slot x1, or as the difference between the logical time slot index corresponding to time slot x2 and the logical time slot index corresponding to time slot x1.

[0059] ●“Offset between x1 and x2” can also be called offset of x2 with respect to x1 (offset of x2 with respect to x1, or offset of x2 relative to x1).

[0060] ●“The offset between x1 and x2” can also be called the offset from x1 to x2.

[0061] ●If Δ(x1, x2) = D, x2 can be written as x2 = ADD(x1, D).

[0062] ●If Δ(x1, x2) = D, x1 can be written as x1 = SUBTRACT(x2, D).

[0063] • The offset between two subcarriers may refer to the offset between the center frequencies of the two subcarriers.

[0064] Modulo Operation can be defined as r≡a mod N, where

[0065] ■r is the remainder.

[0066] ■a=N×q+r,where q can be called the integer quotient of a and N.

[0067] ■0≤r<|N|.

[0068] The rounding operation can be expressed as b=round(a), where b can be defined as the integer closest to a. If there are two integers closest to a, b can be defined as the larger of the two integers, or as the smaller of the two integers.

[0069] ●SCI (Sidelink Control Information) can refer to the first stage SCI (1 st -stage SCI) and / or second-stage SCI (2 nd -stage SCI).

[0070] ●SL may refer to NR SL.

[0071] ●“Sidewalking” may refer to NR sidewalking.

[0072] ●“Carrier” may refer to a sidecarrier.

[0073] ● "Bandwidth segment" may refer to a sidelink bandwidth segment.

[0074] ●“Resource pool” may refer to the sideline resource pool.

[0075] ●A "sidelink resource" may refer to a resource that can be used for sidelink transmission, for example, a time-frequency resource, wherein, in the time domain, the time-frequency resource may correspond to one or more symbols, or one or more time slots, or one or more subframes, etc.; in the frequency domain, the time-frequency resource may correspond to one or more subchannels, or one or more resource blocks, or one or more subcarriers, etc.

[0076] A "sidelink timeslot" may refer to a timeslot configured with sidelink resources (e.g., a timeslot in a resource pool). The "sidelink resources" may or may not include resources for specific purposes, wherein the "resources for specific purposes" may include resources used for synchronization procedures, such as resources used to transmit S-SS / PSBCH (Sidelink Synchronization Signal / Physical Sidelink Broadcast Channel, S-SS / Physical Sidelink Broadcast CHannel, or Sidelink-Synchronization Signal / Physical Sidelink Broadcast CHannel) blocks.

[0077] ●A "physical time slot" may refer to a time slot belonging to a physical time slot set, where the physical time slot set may be all time slots in a continuous period of time (for example, a frame period with a duration of 1024 frames); the physical time slots in the physical time slot set may be indexed in chronological order as 0, 1, ...

[0078] ●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, ...

[0079] ●A "logical time slot" may refer to a time slot that can be configured as a set of time slots belonging to a resource pool.

[0080] ●A "sideways time slot" may refer to a time slot in a set of time slots belonging to a resource pool.

[0081] A "sideways time slot" may refer to a time slot that may be configured as a set of time slots belonging to a resource pool.

[0082] A "physical symbol" may refer to a symbol in a symbol set consisting of all symbols in a time slot (e.g., represented by its index in the symbol set). For example, for a normal cyclic prefix, the symbol set may be {0, 1, ..., 13}; for an extended cyclic prefix, the symbol set may be {0, 1, ..., 11}.

[0083] A "sideline symbol" may refer to a symbol in a symbol set consisting of all sideline symbols in a time slot (e.g., represented by its index in the symbol set). For example, the first element in the symbol set may correspond to the first sideline symbol in a sideline time slot (pre-)configured by the parameter sl-StartSymbol; the number of elements in the symbol set may be equal to the number of sideline symbols in a sideline time slot (pre-)configured by the parameter sl-LengthSymbols.

[0084] ●A symbol index may refer to the index of the symbol in a corresponding physical symbol set (ie, a "physical symbol index").

[0085] ●A symbol index may refer to the index of the symbol in a corresponding side row symbol set (ie, "side row symbol index").

[0086] ●A “symbol” can refer to a physical symbol.

[0087] ●A “symbol” can refer to a side symbol.

[0088] ●A "sidelink transmission" may correspond to the transmission of a physical channel. For example, the physical channel may be a PSCCH (Physical Sidelink Control Channel), a PSSCH (Physical Sidelink Shared Channel), a PSFCH (Physical Sidelink Feedback Channel), a PSBCH (Physical Sidelink Broadcast Channel), or other physical channels that can be used for sidelink. The sidelink transmission corresponding to a sidelink channel (for example, a "PSCCH transmission"; for example, a "PSSCH transmission") may refer to the transmission of the sidelink channel and one or more reference signals (for example, DMRS) associated with it.

[0089] ●A "sidelink transmission" may correspond to the transmission of a physical signal. For example, the physical signal may be S-PSS (Sidelink primary synchronization signal), or S-SSS (Sidelink secondary synchronization signal), or DMRS (or "DM-RS", Demodulation reference signals), or CSIRS (or "CSI-RS", Channel-state information reference signal), or PT RS (or "PT-RS", Phase-tracking reference signals), or other physical signals that can be used for sidelink.

[0090] ●A "side transmission" may correspond to the transmission of one or more physical channels multiplexed (e.g., time division multiplexing; or frequency division multiplexing; or multiplexing implemented in other ways) on the same side resource, or the transmission of one or more physical signals, or the transmission of one or more physical channels and one or more physical signals. For example, an "S-SS / PSBCH block transmission" (or called an "S-SSB transmission") can correspond to the transmission of an S-PSS, an S-SSS, and a PSBCH multiplexed on the same sidelink resource, and the corresponding resource multiplexing pattern can be recorded as "S-PSS / S-SSS / PSBCH"; a "PSCCH / PSSCH transmission" (or called a "PSSCH / PSCCH transmission") can correspond to the transmission of a PSCCH and an associated PSSCH multiplexed on the same sidelink resource, and the corresponding resource multiplexing pattern can be recorded as "PSCCH / PSSCH" (or called "PSSCH / PSCCH"); a "PSCCH / SL PRS transmission" can correspond to the transmission of a PSCCH and an associated SL PRS multiplexed on the same sidelink resource, and the corresponding resource multiplexing pattern can be recorded as "PSCCH / SL PRS"; a "PSCCH / PSSCH / SL PRS transmission" (or called a "PSSCH / PSCCH / SL PRS transmission”) can correspond to the transmission of a PSCCH, a PSSCH associated with the PSCCH, and a SL PRS associated with the PSCCH multiplexed on the same sidelink resource, and the corresponding resource multiplexing mode can be recorded as “PSCCH / PSSCH / SL PRS” (or called “PSSCH / PSCCH / SL PRS”).

[0091] ● In the time domain, a "frame" (or "radio frame") can refer to a system frame or a direct frame. A frame number period (e.g., T FNP ) may correspond to a predefined or (pre)configured parameter, or may be determined based on one or more predefined or (pre)configured parameters, for example, T FNP = 1024 frames. The duration of each frame can be T f = 10 milliseconds, which can contain 10 subframes, where the duration of each subframe is T sf = 1 millisecond. Each subframe can contain time slots, for example, The index of a time slot in a subframe can be recorded as The index of a time slot in a frame can be recorded as ,in, Can be equal to 10·2 μ The time slot index in a frame number cycle can be recorded as in Can be equal to (For example, 1024·(10·2 μ )).

[0092] ●A sidelink grant can be a sidelink dynamic grant, a sidelink configured grant, or any other form of sidelink grant.

[0093] ●A "sidelink configured grant" can be a "type 1 sidelink configured grant", or a "type 2 sidelink configured grant", or any other form of sidelink configured grant.

[0094] ●The “release” operation on a side travel configuration permission may also be referred to as the “deactivation” operation on the side travel configuration permission.

[0095] ●“Dynamic sidelink grant” and “dynamic sidelink grant” are interchangeable.

[0096] ●“Sidelink configuration grant” and “configured sidelink grant” are interchangeable.

[0097] ●“Type 1 sidelink configuration grant” and “sidelink configured grant type 1” are interchangeable.

[0098] ● “Type 2 sidelink configuration grant” and “sidelink configured grant type 2” are interchangeable.

[0099] ●A sidelink identity (sidelink ID) can be a layer one (1ayer 1) sidelink identifier or a layer two (1ayer 2) sidelink identifier.

[0100] A destination identifier (destination ID) can be a sideline identifier, such as a layer 1 sideline identifier or a layer 2 sideline identifier. For example, a destination identifier indicated in a multicast transmission can be used to identify a group corresponding to the multicast transmission; for another example, a destination identifier indicated in a broadcast transmission can be used to identify a service corresponding to the broadcast transmission; for another example, a destination identifier indicated in a unicast transmission can be used to identify the intended receiving UE of the unicast transmission (e.g., the destination identifier is the source identifier of the intended receiving UE).

[0101] A source ID may be a sideline identifier, such as a layer 1 sideline identifier or a layer 2 sideline identifier. For example, a source ID indicated in a unicast (or multicast, or broadcast) transmission may be used to identify the UE performing the transmission.

[0102] A priority level can be associated with a priority value. For example, one priority level can be associated with a priority value of 0, while another priority level can be associated with a priority value of 1.

[0103] A priority level may correspond to a priority value in one or more protocol layers (or protocol sublayers), wherein the corresponding priority values ​​in different protocol layers (or protocol sublayers) may be equal or different. For example, one priority level may correspond to a priority value of 0 at the physical layer and a priority value of 1 at a higher layer; another priority level may correspond to a priority value of 1 at the physical layer and a priority value of 2 at a higher layer.

[0104] The relationship between the priority order and the corresponding priority value may be such that as the priority value increases, the priority (or "priority order") decreases. For example, if the priority values ​​corresponding to the priorities associated with a first side transmission and a second side transmission are 0 and 1, respectively, the priority of the first side transmission is higher than the priority of the second side transmission.

[0105] The relationship between the priority order and the corresponding priority value may be such that as the priority value increases, the priority (or "priority order") increases. For example, if the priority values ​​corresponding to the priorities associated with the first side transmission and the second side transmission are 0 and 1, respectively, the priority of the first side transmission is lower than the priority of the second side transmission.

[0106] ● “Positioning” may include part or all of “ranging” (e.g., determining the distance between two UEs) and “positioning” (e.g., including absolute positioning and / or relative positioning; specifically, for example, determining the location information of a UE).

[0107] • "Positioning" may include ranging and / or positioning based on sidewalk operations.

[0108] ● “Target UE” may refer to a UE being positioned and / or ranging (or referred to as a “device being positioned and / or ranging”).

[0109] ● “Anchor UE” may refer to a UE that provides support for positioning and / or ranging of a target UE (or referred to as “a device that provides support for positioning and / or ranging of a target UE”).

[0110] A "server UE" (or "sidewalk positioning server UE," SL Positioning Server UE) may refer to a UE that provides location calculation for services based on sidewalk positioning and / or ranging. To calculate the position of a target UE, a server UE may interact with other UEs via the PC5 interface. A target UE may be a server UE. An anchor UE may be a server UE.

[0111] Pre-Emb

[0112] A positioning-related reference signal transmitted and / or received on a sidelink may be referred to as an SL PRS (or "SL-PRS", Sidelink Positioning Reference Signal).

[0113] The resources corresponding to an SL PRS transmission (for example, time-frequency resources) can be called an SL PRS resource (SL PRS resource, or called "SL PRS transmission resource", SL PRS transmission resource, or called "SL PRS transmission occasion resource", SL PRS transmission occasion resource). An SL PRS resource can correspond to one or more consecutive RBs in the frequency domain and one or more consecutive symbols in the time domain, wherein the SLPRS resource can occupy different subcarrier subsets in the one or more consecutive RBs in different symbols. For example, an SL PRS resource consisting of 4 consecutive symbols and 50 consecutive RBs occupies the subcarrier sets {0, 4, 8}, {2, 6, 10}, {1, 5, 9}, and {3, 7, 11} in each of the 50 RBs in the first, second, third and fourth symbols, respectively; such a RE (resource element) pattern that occupies one subcarrier in every four consecutive subcarriers can be called a comb-like pattern with a "comb size" of 4 (for example, denoted as Comb-4).

[0114] An SL PRS resource may be associated with one or more parameters, such as one or more of the following:

[0115] ●A SL PRS resource identifier (SL PRS resource identifier, or SL PRS resource ID).

[0116] ● One or more parameters related to frequency domain resource allocation, including, for example, a starting RB index (or a starting subchannel index) and the number of RBs (or the number of subchannels).

[0117] The "comb size" corresponding to a corresponding comb-like pattern. For example, the "comb size" may represent the interval between two adjacent REs (resource elements) occupied by the SL PRS resource in a symbol. Specifically, for example, if the indices of two adjacent REs are 0 and 6 (or 1 and 7; or 2 and 8; etc.), the corresponding "comb size" may be 6, and the corresponding comb pattern may be denoted as Comb-6.

[0118] An offset within the comb pattern, for example, called a "comb offset". The comb offset may be an "RE offset" expressed as the number of REs. For example, the "RE offset" may correspond to the RE index of the first symbol of the SL PRS resource. The "comb offsets" corresponding to different SL PRS resources multiplexed in the same comb pattern may be different. Accordingly, the "comb offset" may be used to uniquely identify an SL PRS resource multiplexed in a comb pattern.

[0119] ● One or more parameters related to time domain resource allocation, including, for example, the starting symbol and the number of symbols in a time slot.

[0120] One SL PRS transmission (or corresponding SL PRS resource) in a time slot can be associated with one PSCCH transmission in the same time slot, where:

[0121] ●The resource corresponding to the PSCCH transmission (eg, time-frequency resource) may be referred to as a PSCCH resource.

[0122] ●The PSCCH resource can be associated with one or more SL PRS resources in the time slot.

[0123] ●The PSCCH transmission may carry part or all of the information in the SCI associated with the SL PRS transmission (or, the corresponding SL PRS resource); the SCI may indicate information related to the SL PRS transmission (or, the corresponding SL PRS resource), for example, the SCI may indicate which of the one or more SL PRS resources associated with the PSCCH resource the SL PRS transmission corresponds to.

[0124] A sidelink transmission without multiplexing the SL PRS (or referred to as "not including the SL PRS") may be referred to as a "sidelink transmission without the SL PRS". For example, a PSCCH / PSSCH transmission is a sidelink transmission without the SL PRS.

[0125] A sideline transmission multiplexed with an SL PRS (or "containing an SL PRS") may be referred to as a "sideline transmission with an SL PRS." For example, each of the following may correspond to a sideline transmission with an SL PRS:

[0126] ●One SL PRS transmission (or referred to as “one independent SL PRS transmission”).

[0127] ●One PSCCH / SL PRS transmission.

[0128] ●One PSCCH / PSSCH / SL PRS transmission.

[0129] On a sidelink, a resource pool can be configured for one or more purposes, including, for example, one or more of sidelink communication, sidelink discovery, and sidelink positioning. A combination of one or more specific purposes can correspond to a "resource pool type." For example, a resource pool that can be used for positioning (e.g., a resource pool with (pre-)configured SL PRS resources; or a resource pool that can be used for SL PRS transmission and / or reception) can be called a "positioning resource pool"; for example, a resource pool that cannot be used for positioning (e.g., a resource pool without (pre-)configured SL PRS resources; or a resource pool that cannot be used for SL PRS transmission and / or reception) can be called a "non-positioning resource pool"; for example, a resource pool that can be used for sideline communication can be called a "sideline communication resource pool"; for example, a resource pool that can be used for sideline discovery can be called a "sideline discovery resource pool"; for example, a resource pool specifically used for positioning can be called a "dedicated positioning resource pool" (or a "dedicated SL PRS resource pool"; or, without the risk of confusion, a "dedicated resource pool"); For another example, a resource pool dedicated to sideline communication may be called a "dedicated sideline communication resource pool"; for another example, a resource pool dedicated to sideline discovery may be called a "dedicated sideline discovery resource pool"; for another example, a resource pool that can be used for positioning and one or more other purposes (for example, sideline communication and / or sideline discovery) may be called a "shared positioning resource pool" (or, in the absence of risk of confusion, the resource pool may be called a "shared resource pool").

[0130] A sidelink communication resource pool may be a resource pool that may be used to transmit and / or receive sidelink channels and / or signals (eg, PSCCH; also, PSSCH; also, PSFCH) for sidelink communication.

[0131] A sidelink discovery resource pool may be a resource pool that may be used to transmit and / or receive sidelink channels and / or signals (eg, PSCCH; also, PSSCH; also, PSFCH) for sidelink discovery.

[0132] A positioning resource pool may be a resource pool that may be used to transmit and / or receive side channels and / or signals for positioning (e.g., SL PRS, side channels and / or signals for carrying positioning-related control information, and part or all of side channels and / or signals for carrying positioning-related measurement reports). In a positioning resource pool, the frequency domain resources that may be used for SL PRS may correspond to part or all of the frequency domain resources in the resource pool (e.g., part or all of the RBs in the resource pool; or, for example, part or all of the subchannels in the resource pool), and the time domain resources that may be used for SL PRS may correspond to part or all of the time domain resources in the resource pool (e.g., part or all of the symbols in part or all of the time slots in the resource pool).

[0133] A positioning resource pool may be associated with an SPC (SL PRS configuration), where the SPC may include one or more of the following:

[0134] ● One or more parameters for (pre-)configuring SL PRS resources (eg, time domain resources; or frequency domain resources).

[0135] • One or more parameters related to part or all of the transmission, reception, and measurement of the SL PRS.

[0136] • One or more other parameters related to the SL PRS.

[0137] The parameter sets corresponding to the SPCs associated with different types of positioning resource pools may be the same or different.

[0138] All parameters in an SPC may be included in an IE (information element) used for (pre-)configuring the resource pool associated with the SPC.

[0139] One or more SPCs may be (pre-)configured in a carrier (or bandwidth segment). Accordingly, an "SPC index" (or "SPC identifier") field in an IE used for (pre-)configuring a resource pool in the carrier (or the bandwidth segment) may be used to indicate which SPC in the carrier (or the bandwidth segment) is applied in the resource pool, or to indicate that no SPC is applied in the resource pool (for example, when the SPC index field does not exist, no SPC is applied in the resource pool).

[0140] A positioning resource pool can be a dedicated positioning resource pool, a shared positioning resource pool, or a resource pool defined in other ways.

[0141] A dedicated positioning resource pool may be a resource pool used only for transmitting and / or receiving side channels (e.g., PSCCH) and / or signals (e.g., SL PRS) used for positioning. For example, a dedicated positioning resource pool may be defined as a resource pool dedicated to SL PRS; or, in another example, a dedicated positioning resource pool may be defined as a resource pool dedicated to SL PRS and its associated PSCCH.

[0142] A shared positioning resource pool can be defined as a resource pool that can be used for both PSSCH and SL PRS (e.g., SL PRS multiplexed with PSSCH), where "PSSCH" here can be replaced by "PSSCH and its associated PSCCH." For example, if an SPC is included (or indicated) in the IE used to (pre-)configure the parameters of a resource pool, the resource pool can be a shared positioning resource pool; otherwise, the resource pool can be a non-positioning resource pool (e.g., a resource pool that can be used for sideline communication and / or sideline discovery).

[0143] Positioning-related information defined in a higher-layer protocol, such as control information and / or measurement reports, may be carried in sidelink transmissions (e.g., PSSCH transmissions) in one or more types of resource pools. For example, the one or more types of resource pools may include some or all of the following:

[0144] ●Dedicated sideline communication resource pool.

[0145] ●Dedicated side-discovery resource pool.

[0146] ●Sideline communication resource pool.

[0147] ●Side-discovery resource pool.

[0148] ●Shared positioning resource pool.

[0149] ●Non-located resource pool.

[0150] A sidewalk communication resource pool may be used for sidewalk discovery under certain conditions (for example, the conditions include that no sidewalk discovery resource pool is (pre-)configured), or may always be used for sidewalk discovery.

[0151] A side discovery resource pool can be used for positioning under certain conditions (for example, the condition includes that no positioning resource pool is (pre-)configured; or the condition includes that no shared positioning resource pool is (pre-)configured) or can always be used for positioning. A default SPC can be applied to the resource pool.

[0152] A sidelink communication resource pool can be used for positioning under certain conditions (for example, the condition includes that no positioning resource pool is (pre-)configured; or the condition includes that no shared positioning resource pool is (pre-)configured) or can always be used for positioning. A default SPC can be applied to the resource pool.

[0153] In a dedicated positioning resource pool (e.g. ), the set consisting of all RBs corresponding to the frequency domain resources that can be used for SL PRS (or all RBs corresponding to all sub-channels corresponding to the frequency domain resources that can be used for SL PRS) can be recorded as And the set The set of all subcarriers corresponding to all RBs in can be recorded as The collection Can be equal to the set Or the collection a subset of (e.g., a subset that is predefined or (pre)configured or indicated in an SCI or other signaling), wherein the set The resource pool All RBs in the resource pool (or The set consists of all RBs corresponding to all sub-channels in the . Can be equal to the set Or the collection a subset of (e.g., a subset that is predefined or (pre)configured or indicated in an SCI or other signaling), wherein the set is the set The set consists of all subcarriers corresponding to all RBs in the .

[0154] In the resource pool In a time slot (e.g. ) can contain "SL PRS occasions" (SL PRS occasions, or "SL PRS transmission occasions", SL PRS transmission occasions, or "SL PRS transmission resource occasions", SL PRS transmission resource occasions), for example, are respectively recorded as in,

[0155] ● Can be an integer greater than or equal to 1.

[0156] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0157] ● It may have nothing to do with i0.

[0158] In the resource pool In, right In the time domain, it can correspond to the time slot A symbol set in in,

[0159] ● Can be an integer greater than or equal to 1.

[0160] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0161] ● It may be independent of i0 and part or all of m.

[0162] Yes It can be a physical symbol index or a side symbol index.

[0163] ● The symbols in can be consecutive symbols, for example,

[0164] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0165] ●To satisfy Some or all of n (e.g., for n=0), It may be independent of i0 and part or all of m.

[0166] In the resource pool In, right Can correspond to a "comb size" of The comb pattern (i.e. ), accordingly, the comb pattern can be reused SL PRS resources, for example, are recorded as in,

[0167] ● Can be an integer greater than or equal to 1, for example, For example, For example, For example, For example, For example,

[0168] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0169] ● It may be independent of i0 and part or all of m.

[0170] Yes And m1≠m2, it can be considered SL PRS resources and The SL PRS resources in the time slot are multiplexed in the TDM (Time Division Multiplexing) mode. middle.

[0171] In the resource pool In, yes SL PRS Resources In the time domain, the symbol set can correspond to In the frequency domain, it may correspond to one or more consecutive RBs (for example, the corresponding set is And the set The set of all subcarriers corresponding to all RBs in can be recorded as ) of some or all subcarriers (ie the corresponding set is the set a subset of ), where

[0172] ● Can be equal to the set Or the collection A subset of .

[0173] ● It may be a predefined or (pre)configured set, or may be determined in other ways.

[0174] ● The determination method may be related to the corresponding sidelink resource allocation mode.

[0175] ● It may be independent of i0 and part or all of m, and accordingly, It may be independent of i0 and part or all of m.

[0176] ●In the symbol SL PRS resources The corresponding subcarrier set (for example, ) can be a collection A subset of, for example, the set It can be the set and the collection The intersection of

[0177] ■The collection and the collection The reference point (ie, the subcarrier corresponding to the element with a value of 0) may be subcarrier 0 of CRB 0, or may be defined in other ways.

[0178] ■ Can represent SL PRS resources RE offset.

[0179] ■ The value can be a set An element in .

[0180] ■ It may be independent of i0 and part or all of m, for example, It can be determined according to q (specifically, for example,

[0181] ■ The value can be a set An element in .

[0182] ■ It may be independent of i0 and part or all of m.

[0183] ■ can be a system that can be based at least in part on A certain set (or "sequence"), for example, if 2, then For example, if but

[0184] In the resource pool In the time slot The number of SL PRS resources in can be recorded as For example, described It can be independent of i0, for example, in, and It has nothing to do with i0; and as well as It has nothing to do with i0.

[0185] In the resource pool In the time slot in The SL PRS resource identifier associated with each of the SL PRS resources may be The time slot in An example of allocation (or "mapping") of SL PRS resource identifiers may be to traverse the SL PRS resource index in increments of the RE offset in the SL PRS opportunity and then in increments of the SL PRS opportunity index in the time slot. SL PRS resources and assign SL PRS resource identifiers 0, 1, ..., and Specifically, for example, if And for m∈{0,1,2}, SL PRS resources as well as The corresponding SL PRS resource identifiers are 0, 1, 2, 3, 4, and 5. Another example of the allocation (or "mapping") of SL PRS resource identifiers may be to traverse the SL PRS resource identifiers in the manner of first increasing the SL PRS opportunity index in the time slot and then increasing the RE offset in the SL PRS opportunity. SL PRS resources and assign SL PRS resource identifiers 0, 1, ..., and Specifically, for example, if And for m∈{0,1,2}, 2. SL PRS resources as well as The corresponding SL PRS resource identifiers are 0, 1, 2, 3, 4, and 5 respectively.

[0186] right as well as SL PRS Resources The corresponding SL PRS resource identifier can be recorded as

[0187] In the resource pool In the time slot The symbol for AGC (Automatic Gain Control) can be included in the . Part or all of m, symbol The previous symbol (i.e. symbol ) can be used for AGC.

[0188] In the resource pool In the time slot The symbol may include one or more symbols for switching from reception to transmission (RX-TX switching, or RX-TX turnaround, where RX can represent reception and TX can represent transmission). Part or all of m, symbol The next symbol (i.e. symbol ) can be used for conversion from reception to transmission.

[0189] In the resource pool In the time slot The may contain one or more symbols for switching from transmission to reception.

[0190] In the resource pool In the time slot There can be PSCCH resources, where one or more of the following may hold:

[0191] ● is an integer.

[0192] ●

[0193] ●

[0194] ●

[0195] ● or, or, in, Can be an integer greater than or equal to 1 (e.g. ); It may correspond to a predefined or (pre)configured parameter, or may be determined based on one or more predefined or (pre)configured parameters, or may be determined in other ways; It may have nothing to do with i0.

[0196] ● in, Can be an integer greater than or equal to 1 (e.g. ); It may correspond to a predefined or (pre)configured parameter, or may be determined based on one or more predefined or (pre)configured parameters, or may be determined in other ways; It may have nothing to do with i0.

[0197] ●

[0198] ● in, Can be an integer greater than or equal to 1 (e.g. ); It may correspond to a predefined or (pre)configured parameter, or may be determined based on one or more predefined or (pre)configured parameters, or may be determined in other ways; It may have nothing to do with i0.

[0199] ● or, or, in, Can be an integer greater than or equal to 1 (e.g. ); It may correspond to a predefined or (pre)configured parameter, or may be determined based on one or more predefined or (pre)configured parameters, or may be determined in other ways; It may have nothing to do with i0.

[0200] ●

[0201] ●

[0202] ●

[0203] ●

[0204] ●

[0205] ●

[0206] ●

[0207] ●

[0208] ● in Indicates the resource pool The number of sub-channels in .

[0209] ●

[0210] described It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0211] described It may have nothing to do with i0.

[0212] described Each of the PSCCH resources can be in the resource pool In a subchannel of Among the PSCCH resources, the sub-channels where any two different PSCCH resources are located may be different from each other.

[0213] described PSCCH resources can be assigned indexes 0, 1, ... in a certain order. Each index may be referred to as a "PSCCH resource index" or a "PSCCH resource identifier"; the index order may be one of the following:

[0214] ● The order of the frequencies of the PSCCH resources from low to high. Specifically, for example, the order of the index of the lowest RB (i.e., the RB with the smallest index) of the PSCCH resources from low to high; or for another example, the order of the index of the subchannel where the PSCCH resources are located from low to high.

[0215] ● The order of the frequencies of the PSCCH resources from high to low. Specifically, for example, the order of the index of the lowest RB of the PSCCH resources from high to low; or for another example, the order of the index of the subchannel where the PSCCH resources are located from high to low.

[0216] right The PSCCH resource corresponding to the PSCCH resource index k can be recorded as

[0217] right PSCCH resources The index of the subchannel may be determined at least in part according to k, for example, the subchannel may be subchannel k.

[0218] right PSCCH resources Can be mapped to the time domain symbols and frequency domain RBs, among which,

[0219] ● Can be an integer greater than or equal to 1. For example, For example,

[0220] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0221] ● It may have nothing to do with i0.

[0222] ● The symbols may be consecutive symbols.

[0223] ● For each of the symbols, one or more (e.g., all) of the following may hold:

[0224] ■The symbols described are not used for SL PRS.

[0225] ■The symbols described are not used for AGC.

[0226] ■ The symbol is not used for switching from reception to transmission.

[0227] ■ The symbol is not used for switching from transmission to reception.

[0228] ● The index of the first symbol (i.e. the symbol that appears first) among the symbols (e.g. ) may correspond to a predefined or (pre)configured parameter, or may be determined based on one or more predefined or (pre)configured parameters, or may be determined in other ways. It may be independent of i0 and part or all of k, for example, Can correspond to the time slot A predefined or (pre) configured side symbol in the time slot (specifically, for example, ).

[0229] ● Can be an integer greater than or equal to 1. For example, For example, For example, For example, 20; and again,

[0230] ● Can be equal to the resource pool The subchannel size (e.g., the size expressed in the number of RBs) in the resource pool is, for example, Predefined or (pre)configured subchannel sizes.

[0231] ● Can be smaller than the resource pool The subchannel size in .

[0232] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0233] ● It may have nothing to do with i0.

[0234] ● The RBs may be consecutive RBs.

[0235] The PSCCH resources The index of the subchannel may be determined at least in part according to k. For example, the index of the subchannel is k.

[0236] ● The lowest RB among the RBs may be the PSCCH resource The lowest RB of the subchannel.

[0237] The PSCCH resources It can occupy all RBs in the sub-channel where it is located.

[0238] described It may be determined at least in part based on one or more of the following:

[0239] ●

[0240] ●The collection The number of RBs in ).

[0241] For example, in, Can be a An integer that is divisible; for example, For example, For example, For example, For example,

[0242] described It may be determined at least in part based on one or more of the following:

[0243] ●

[0244] ●

[0245] For example, in, Can be a An integer that is divisible; for example, For example, For example, For example, For example,

[0246] right PSCCH resources Corresponding The index of the lowest RB among the RBs (e.g., ) may be determined at least in part based on one or more of the following:

[0247] ●The k.

[0248] ●

[0249] ●

[0250] ●

[0251] PSCCH resources Corresponding The index of the lowest RB among the RBs (i.e. ). Wherein, It may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may correspond to the resource pool The lowest RB in the lowest subchannel in the resource pool, or the lowest RB in the lowest subchannel in the resource pool may be based at least in part on the resource pool. The lowest RB in the lowest subchannel in the set is determined, or may correspond to the set The lowest RB in the set, or may be based at least in part on the The lowest RB in the set is determined, or it may correspond to the set The lowest RB in the set, or may be based at least in part on the It is determined by the lowest RB in , or can be determined in other ways.

[0252] For example, For example, For example, The corresponding RB is the resource pool The lowest RB of subchannel k in .

[0253] ● Can be an integer greater than or equal to 0, for example,

[0254] ● It may have nothing to do with i0.

[0255] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0256] right PSCCH resources Can be associated SL PRS resources (for example, respectively Among them, one or more of the following may be true:

[0257] ● is an integer.

[0258] ●

[0259] ●

[0260] ●

[0261] ● in, It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways. Can be an integer, for example, For example, For example, For example, For example,

[0262] ● in, It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways. Can be an integer, for example, For example, For example, For example, For example,

[0263] ●

[0264] ●

[0265] ●

[0266] ●

[0267] ●

[0268] ●

[0269] ●

[0270] ●

[0271] ●

[0272] ●

[0273] ●

[0274] ●

[0275] ●

[0276] ● in, It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways. Can be an integer, for example, For example, For example, For example,

[0277] ●

[0278] ●

[0279] ●

[0280] ●

[0281] ●

[0282] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0283] ● It can be equivalent to satisfying Among all m, The number of m.

[0284] ● It can be equivalent to satisfying Among all m, The number of m.

[0285] ● It may have nothing to do with i0.

[0286] right PSCCH resources Associated Each SL PRS resource may be determined by one of the following items (for example, one of some or all of the following items may be determined in a predefined or (pre)configured manner):

[0287] ● And SL PRS resources The SL PRS resource identifier may be determined at least in part based on k. For example, the SL PRS resource It can be the SL PRS resource with the SL PRS resource identifier k.

[0288] Yes SL PRS Resources The SL PRS resource identifier can be SL PRS resources, among which, Can be an integer; Can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it may be equal to 1, or may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0289] Yes SL PRS Resources The SL PRS resource identifier can be SL PRS resources, among which, Can be an integer; Can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it can be equal to Or it may be equal to 1, or may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0290] Yes SL PRS Resources It can be SL PRS timing SL PRS resources in

[0291] Yes SL PRS Resources It can be SL PRS timing SL PRS resources in

[0292] In the resource pool In the example, one or more of the following items may be determined according to a PSCCH resource index:

[0293] ● One or more parameters of the corresponding PSCCH resource (eg, time domain parameters; or frequency domain parameters).

[0294] ● One or more parameters (eg, time domain parameters; or frequency domain parameters) of each of the one or more SL PRS resources associated with the PSCCH resource.

[0295] For example, you can do one or more of the following:

[0296] ●Determine the time domain and / or frequency domain parameters of the corresponding PSCCH resource based on the PSCCH resource index and the predefined or (pre)configured mapping relationship from the PSCCH resource index to the time domain and / or frequency domain parameters of the PSCCH resource.

[0297] ●Determine one or more SL PRS resource identifiers associated with the corresponding PSCCH resource based on the PSCCH resource index and the predefined or (pre)configured mapping relationship from the PSCCH resource index to the SL PRS resource identifier.

[0298] ●Determine the time domain and / or frequency domain parameters of the corresponding SL PRS resource based on each SL PRS resource identifier and the predefined or (pre)configured mapping relationship from the SL PRS resource identifier to the time domain and / or frequency domain parameters of the SL PRS resource.

[0299] In the resource pool In the example, one or more of the following items may be determined based on an SL PRS resource identifier:

[0300] ● One or more parameters of the corresponding SL PRS resource (eg, time domain parameters; or frequency domain parameters).

[0301] ●One or more parameters of the PSCCH resource associated with the SL PRS resource (for example, time domain parameters; for example, frequency domain parameters).

[0302] ● One or more parameters (eg, time domain parameters; or frequency domain parameters) of each of the other SL PRS resources associated with the PSCCH resource.

[0303] For example, you can do one or more of the following:

[0304] ●Based on the SL PRS resource identifier and the predefined or (pre) configured mapping relationship from the PSCCH resource index to the SL PRS resource identifier (or, the mapping relationship from the SL PRS resource identifier to the PSCCH resource index), determine the PSCCH resource index corresponding to the PSCCH resource associated with the corresponding SL PRS resource.

[0305] ●Determine the time domain and / or frequency domain parameters of the corresponding PSCCH resource based on the PSCCH resource index and the predefined or (pre)configured mapping relationship from the PSCCH resource index to the time domain and / or frequency domain parameters of the PSCCH resource.

[0306] ●Determine one or more SL PRS resource identifiers associated with the corresponding PSCCH resource based on the PSCCH resource index and the predefined or (pre)configured mapping relationship from the PSCCH resource index to the SL PRS resource identifier.

[0307] ●Determine the time domain and / or frequency domain parameters of the corresponding SL PRS resource based on each SL PRS resource identifier and the predefined or (pre)configured mapping relationship from the SL PRS resource identifier to the time domain and / or frequency domain parameters of the SL PRS resource.

[0308] In a shared location resource pool (e.g. ) a time slot (e.g., In the example, a PSCCH, a PSSCH associated with the PSCCH, and a SL PRS associated with the PSCCH (if any) can be partially or completely multiplexed on a sidelink resource (e.g., denoted as ). Among them,

[0309] ● In the case where the SL PRS is not multiplexed, The side transmission on ) can be a PSCCH / PSSCH transmission.

[0310] ● In the case of multiplexing the SL PRS, the It can be a PSCCH / PSSCH / SL PRS transmission.

[0311] ● The associated SCI (e.g. ), the first stage SCI (e.g. ) can be carried in the PSCCH, the second stage SCI (e.g. ) can be carried in the PSSCH.

[0312] ● It can correspond to one or more sub-channels in the frequency domain (for example, the corresponding set is And the set The set of all RBs corresponding to all sub-channels in can be recorded as ).

[0313] ●In the frequency domain, the PSSCH may correspond to the set All RBs in.

[0314] In the case of multiplexing SL PRS, the There can be SL PRS timing (e.g. ).

[0315] described In the time domain, it can correspond to the time slot A symbol set in in,

[0316] ● Can be an integer greater than or equal to 1, for example, like, For example, For example,

[0317] Yes It can be a physical symbol index or a side symbol index.

[0318] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0319] ● It may have nothing to do with i1.

[0320] ● The symbols in can be consecutive symbols, for example,

[0321] ● It may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may be determined based on the Instructions in the or may be determined in other ways.

[0322] ●To satisfy Some or all of n (e.g., for n=0), It may have nothing to do with i1.

[0323] In the case of no multiplexing of SL PRS, it can be considered that the There is no SL PRS opportunity.

[0324] described Can correspond to a "comb size" of The comb pattern (ie Comb- Accordingly, the It can be multiplexed in the comb pattern SL PRS resources (for example, respectively as well as ), where

[0325] ● Can be an integer greater than or equal to 1, for example, For example, For example, For example,

[0326] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters, or may be determined in other ways.

[0327] ● It may have nothing to do with i1.

[0328] described There may be only one SL PRS resource (e.g., ) for the For example, described SL PRS resources except for the The transmission power of the RE corresponding to other SL PRS resources except SL PRS can be 0. SL PRS resources except for the Other SL PRS resources do not exist. Each of the SL PRS resources is a "candidate SL PRS resource".

[0329] right SL PRS Resources In the time domain, the symbol set can correspond to In the frequency domain, it may correspond to one or more consecutive RBs (for example, the corresponding set is And the set The set of all subcarriers corresponding to all RBs in can be recorded as ) of some or all subcarriers (ie the corresponding set is the set a subset of ), where

[0330] ● Can be equal to the set Or the collection A subset of .

[0331] ● It may be a predefined or (pre)configured set, or may be determined in other ways.

[0332] ● The determination method may be related to the corresponding sidelink resource allocation mode.

[0333] ● can be independent of i1, accordingly, It may have nothing to do with i1.

[0334] ●In the symbol SL PRS resources The corresponding subcarrier set (for example, ) can be a collection A subset of, for example, the set It can be the set and the collection The intersection of

[0335] ■The collection and the collection The reference point (ie, the subcarrier corresponding to the element with a value of 0) may be subcarrier 0 of CRB 0, or may be defined in other ways.

[0336] ■ Can represent SL PRS resources The corresponding RE offset.

[0337] ■ The value can be a set An element in .

[0338] ■ It can be independent of i1, for example, It can be determined according to q (specifically, for example,

[0339] ■ The value can be a set An element in .

[0340] ■ It may have nothing to do with i1.

[0341] ■ can be a system that can be based at least in part on A certain set (or "sequence"), for example, if but For example, if but

[0342] right SL PRS Resources You can associate a The SL PRS resource identifier that uniquely identifies the SL PRS resource. An example of an allocation (or "mapping") of SL PRS resource identifiers may be to traverse the SL PRS resource identifiers in the order of increasing RE offset of each SL PRS resource. SL PRS resources and assign SL PRS resource identifiers 0, 1, ..., and Specifically, for example, if SL PRS resources as well as The corresponding SL PRS resource identifiers are 0, 1, 2, and 3 respectively; accordingly, when SL PRS is multiplexed, if q AU =2, then the SL PRS resources multiplexed in )’s SL PRS resource identifier is 2.

[0343] Resources for the SL PRS The set of symbols occupied For each symbol in , one or more of the following holds:

[0344] ●The symbols are not used for PSCCH in (or referred to as "the The PSCCH in is not mapped to the said symbol").

[0345] ●The symbols are not used for PSCCH DMRS in.

[0346] ●The symbols are not used for PSSCH DMRS in.

[0347] ●The symbols are not used for CSI RS in (if any).

[0348] ●The symbols are not used for PT RS in (if any).

[0349] ●The symbols are not used for The first stage of SCI.

[0350] ●The symbols are not used for The second stage of SCI.

[0351] ●The symbols described are not used for AGC.

[0352] • The symbol is not used for switching from reception to transmission.

[0353] • The symbol is not used for switching from transmission to reception.

[0354] To satisfy the set The restrictions on the collection The first symbol in ) and / or the last symbol (i.e. ) may be determined based on one or more of the following:

[0355] ●

[0356] ●

[0357] ●

[0358] ●

[0359] ●

[0360] ●

[0361] described It can be expressed in the time slot In, used to determine the and / or the A reference symbol of Can represent a sign offset, for example, if but Can indicate that next to the symbol The next symbol, Can indicate that next to the symbol The previous symbol of .

[0362] described It may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may be determined based on the Instructions can be given in the Indicated in, or can be determined in other ways. Can be an integer, for example, For example, For example,

[0363] described It can be the time slot A symbol set in ) (e.g. Right now Alternatively, the According to the Determine, for example Another example in,

[0364] ● Can be an integer greater than or equal to 1.

[0365] ● as well as Each of can be a physical symbol index, or a side symbol index.

[0366] ● The symbols in can be consecutive symbols, for example,

[0367] ● The symbols in can be discontinuous symbols.

[0368] ● It can be the time slot The set of all symbols in the time slot The set of all side row symbols in .

[0369] ● It can be the time slot used in the In this case, May correspond to one of one or more predefined or (pre) configured PSS CH DMRS patterns; It can be said A "DMRS pattern" field indicates.

[0370] ●p r e f The value can be a set An element in .

[0371] ●p r e f (or or or It may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may be determined based on the Instructions in the Instructions.

[0372] ● It can be the set The element with the smallest index among all elements that satisfy the type 0a-1 side symbol condition.

[0373] ● It can be the set The first element that satisfies the type 0a-1 side symbol condition.

[0374] ● It can be the set The element with the largest index among all elements that meet the type 0a-1 side symbol condition.

[0375] ● It can be the set The last element that satisfies the type 0a-1 side symbol condition.

[0376] For symbol x0, the type 0a-1 side symbol condition may include one or more of the following (e.g., in any combination of "AND" or "OR"):

[0377] ●The symbol x0 is used in the After the last (i.e. latest) symbol of .

[0378] ●The symbol x0 is not used earlier than The last symbol of .

[0379] ●The symbol x0+1 is used in the After the last symbol of .

[0380] ●The symbol x0+1 is not earlier than the symbol for The last symbol of .

[0381] Symbols In the use of After the last symbol of .

[0382] ●The symbol No earlier than for the The last symbol of .

[0383] Symbols In the use of After the last symbol of .

[0384] ●The symbol No earlier than for the The last symbol of .

[0385] Symbols In the use of After the last symbol of .

[0386] ●The symbol No earlier than for the The last symbol of .

[0387] Symbols In the use of After the last symbol of .

[0388] ●The symbol No earlier than for the The last symbol of .

[0389] Symbols In the use of After the last symbol of .

[0390] ●The symbol No earlier than for the The last symbol of .

[0391] ●To satisfy For every n, the symbol x0+n satisfies the type 0a-1a side symbol condition.

[0392] ●To satisfy For every n, the symbol x0+n satisfies the type 0a-1a side row symbol condition.

[0393] ●To satisfy For each n, the symbol x0-n satisfies the type 0a-1a sidebar symbol condition.

[0394] ●To satisfy For each n, the symbol x0-n satisfies the type 0a-1a sidebar symbol condition.

[0395] For symbol y0, the type 0a-1a side symbol condition may include one or more of the following (e.g., any combination in an "AND" or "OR" manner):

[0396] ●The symbol y0 is not used in PSCCH in.

[0397] ●The symbol y0 is not used in PSCCH DMRS in.

[0398] ●The symbol y0 is not used in PSSCH DMRS in.

[0399] ●The symbol y0 is not used in CSI RS in (if any).

[0400] ●The symbol y0 is not used in PT RS in (if any).

[0401] ●The symbol y0 is not used in The first stage of SCI.

[0402] ●The symbol y0 is not used in The second stage of SCI.

[0403] The symbol y0 is not used for AGC.

[0404] • The symbol y0 is not used for switching from reception to transmission.

[0405] • The symbol y0 is not used for switching from transmission to reception.

[0406] The collection It can be in the time slot in (or, in the Of all the symbols occupied by Among all the symbols occupied by the symbol set that meet the type 0a-2 side symbol conditions, the symbol set whose first symbol (i.e., the earliest symbol) has the smallest symbol index.

[0407] The collection It can be in the time slot in (or, in the Of all the symbols occupied by A symbol set in which the first symbol (ie, the earliest symbol) has the largest symbol index among all symbol sets that meet the type 0a-2 sideline symbol condition (among all occupied symbols).

[0408] The collection It can be in the time slot in (or, in the Of all the symbols occupied by A symbol set in which the symbol index of the last symbol (ie, the latest symbol) is the smallest among all symbol sets that meet the type 0a-2 sideline symbol condition (among all occupied symbols).

[0409] The collection It can be in the time slot in (or, in the Of all the symbols occupied by A symbol set in which the last symbol (i.e., the latest symbol) has the largest symbol index among all symbol sets that meet the type 0a-2 sideline symbol condition (among all occupied symbols).

[0410] For the symbol set X0, the type 0a-2 side symbol condition may include one or more of the following (e.g., any combination in an "AND" or "OR" manner):

[0411] ●The elements in the set X0 correspond to the Occupied consecutive symbols.

[0412] ●The elements in the set X0 correspond to the Occupied consecutive symbols.

[0413] ●The elements in the set X0 correspond to the time slots in A continuous physical symbol.

[0414] ●The elements in the set X0 correspond to the time slots in A series of side symbols.

[0415] ●Every symbol in the set X0 satisfies the type 0a-1a sidebar symbol condition.

[0416] ●The first symbol in the set X0 satisfies the type 0a-1 sidebar symbol condition.

[0417] • The symbol immediately preceding the first symbol in the set X0 satisfies the type 0a-1 sidebar symbol condition.

[0418] The SL PRS sequence r(m) corresponding to an SL PRS transmission may be a sequence based on a pseudo-random sequence c(n), for example

[0419] Where, c(n)=(x1(n+N c )+x2(n+N c ))mod 2 x1(n+31)=(x1(n+3)+x1(n))mod 2 x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2

[0420] where N c =1600; x1(n) can be initialized to x1(0)=0, x1(1)=x1(2)=…=x1(30)=0; x2(n) can be initialized by an initial value c init Completed, where c init It can be recorded as

[0421] The c init It may be related to one or more parameters (e.g., time domain and / or frequency domain parameters) associated with the SL PRS transmission (or the SL PRS resource where the SL PRS transmission is located), for example, including one or more of the following:

[0422] ● a "SL PRS sequence identifier" (e.g. ).

[0423] The index of the time slot where the SL PRS is transmitted in the corresponding frame (e.g., ).

[0424] The number of symbols in each time slot (e.g. ).

[0425] ●The symbol index within the time slot (l).

[0426] Specifically, for example, in the symbols l, c init It can be expressed as

[0427] described It can be a parameter provided by a higher layer (for example, denoted as sl-PRS-Seq-ID). Optionally, if the higher layer does not provide the parameter sl-PRS-Seq-ID, the It can be determined according to predefined rules, for example, It may be determined at least in part based on a decimal representation of the CRC of the SCI carried (or referred to as "mapped") by the PSCCH transmission associated with the corresponding SL PRS transmission.

[0428] Sidelink transmission (e.g., in the form of resource allocation and / or scheduling and / or reservation) may include one or more of the following:

[0429] ● Sidelink transmission based on network scheduling. The corresponding resource allocation mode can be called "sidelink resource allocation mode 1" or "sidelink resource allocation scheme 1".

[0430] ● Sidelink transmission based on UE autonomous resource selection. The corresponding resource allocation mode can be called "sidelink resource allocation mode 2" or "sidelink resource allocation scheme 2".

[0431] In sidelink resource allocation mode 1, one or more DCI (Downlink Control Information) formats for sidelink (e.g., sidelink scheduling) may be (pre-)configured for the UE, for example, including one or more of the following:

[0432] ●The first sideline scheduling DCI format, for example, DCI format 3_0.

[0433] ●The second side scheduling DCI format, for example, DCI format 3_1.

[0434] ●The third side schedules the DCI format, for example, DCI format 3_2.

[0435] ●The fourth side schedules the DCI format, for example, DCI format 3_3.

[0436] ●The fifth side schedules the DCI format, for example, DCI format 3_4.

[0437] The first sideline scheduling DCI format may be used for one or more operations based on NR sideline. For example, the first sideline scheduling DCI format may be used to schedule one or more sideline transmissions based on NR sideline for part or all of sideline communication, sideline discovery, and positioning. The first sideline scheduling DCI format may be applicable to (or only applicable to) operations without shared spectrum channel access (e.g., operations on licensed spectrum). The first sideline scheduling DCI format may be applicable to (or only applicable to) operations with shared spectrum channel access (e.g., operations on unlicensed spectrum).

[0438] The second sideline scheduling DCI format may be used for one or more operations based on LTE sideline, for example, the second sideline scheduling DCI format may be used to schedule part or all of one or more sideline transmissions based on LTE sideline for sideline communication, sideline discovery, and positioning. The second sideline scheduling DCI format may be applicable to (or only applicable to) operations without shared spectrum channel access (for example, operations on licensed spectrum). The second sideline scheduling DCI format may be applicable to (or only applicable to) operations with shared spectrum channel access (for example, operations on unlicensed spectrum).

[0439] The third sideline scheduling DCI format may be used for one or more operations based on NR sideline. For example, the third sideline scheduling DCI format may be used to schedule one or more sideline transmissions based on NR sideline for part or all of sideline communication, sideline discovery, and positioning. The third sideline scheduling DCI format may be applicable to (or only applicable to) operations without shared spectrum channel access (e.g., operations on licensed spectrum). The third sideline scheduling DCI format may be applicable to (or only applicable to) operations with shared spectrum channel access (e.g., operations on unlicensed spectrum).

[0440] The fourth sideline scheduling DCI format may be used for one or more operations based on NR sideline. For example, the fourth sideline scheduling DCI format may be used to schedule part or all of one or more sideline transmissions based on NR sideline for sideline communication, sideline discovery, and positioning. The fourth sideline scheduling DCI format may be applicable to (or only applicable to) operations without shared spectrum channel access (e.g., operations on licensed spectrum). The fourth sideline scheduling DCI format may be applicable to (or only applicable to) operations with shared spectrum channel access (e.g., operations on unlicensed spectrum).

[0441] The fifth sideline scheduling DCI format may be used for one or more operations based on NR sideline. For example, the fifth sideline scheduling DCI format may be used to schedule one or more sideline transmissions based on NR sideline for part or all of sideline communication, sideline discovery, and positioning. The fifth sideline scheduling DCI format may be applicable to (or only applicable to) operations without shared spectrum channel access (e.g., operations on licensed spectrum). The fifth sideline scheduling DCI format may be applicable to (or only applicable to) operations with shared spectrum channel access (e.g., operations on unlicensed spectrum).

[0442] The UE may determine the DCI carried in a PDCCH (Physical Downlink Control Channel) transmission by performing a blind detection operation. For example, in a blind detection operation, the UE may assume that the DCI corresponds to a combination of one or more parameter values ​​including one or more of the following:

[0443] ●One DCI format (for example, DCI format 3_0; for example, DCI format 3_1).

[0444] ● A DCI size (eg, size in bits) corresponding to the DCI format.

[0445] • A RNTI (Radio Network Temporary Identifier) ​​used to scramble the CRC (Cyclic redundancy check) of the DCI.

[0446] The sizes of different DCI formats can be the same or different. If two different DCI formats have the same size, they correspond to the same "DCI size" (or called "DCI format size"). In order to maintain a reasonable UE implementation complexity, the total number of "DCI sizes" that the UE needs to blindly detect should not be too large. In particular, the size of one or more DCI formats (such as the first sideline scheduling DCI format, the second sideline scheduling DCI format, the third sideline scheduling DCI format, the fourth sideline scheduling DCI format, and part or all of the fifth sideline scheduling DCI format) for sidelinks that are (pre)configured for the UE should be the same. When performing "blind detection", each "DCI size" can be considered as an assumption (hypothesis) of the UE for the size of the DCI format corresponding to the DCI carried in a PDCCH transmission.

[0447] The purpose of the DCI (eg, including the resource reuse pattern for the sidelink transmissions it indicates, if any) may be determined at least in part by the RNTI used to scramble the CRC of the DCI.

[0448] The RNTI related to sideline operation may include one or more of the following:

[0449] • A first sideline RNTI (eg, SL-RNTI).

[0450] • Second sideline RNTI (eg, SLCS-RNTI).

[0451] ●Third side RNTI (for example, SL-POS-RNTI, or SL-PRS-RNTI).

[0452] ●Fourth side RNTI (for example, SLCS-POS-RNTI, or SLCS-PRS-RNTI).

[0453] The first sidelink RNTI may be an RNTI for dynamically scheduling one or more sidelink transmissions (or an RNTI for providing sidelink dynamic grant), wherein the sidelink transmission may be one of the following:

[0454] ●Side transmission without SL PRS.

[0455] Sideline transmission with or without SL PRS. For example, the DCI may indicate whether the sideline transmission is with or without SL PRS. In another example, the UE may determine whether the sideline transmission is with or without SL PRS.

[0456] The second sidelink RNTI may be an RNTI used for part or all of the operations of activating, reactivating, releasing, and retransmitting the sidelink configuration grant, wherein:

[0457] • Part or all of the “activate”, “reactivate”, and “release” may be applicable to type 2 sideline configuration permission.

[0458] The "retransmission" may be applicable to a type 2 sideline configuration grant. In this case, the corresponding DCI may be considered to provide a "sideline dynamic grant".

[0459] The "retransmission" may be applicable to a type 1 sideline configuration grant. In this case, the corresponding DCI may be considered to provide a "sideline dynamic grant".

[0460] The corresponding side transmission (e.g., part or all of "activation", "reactivation", and "retransmission") can be one of the following:

[0461] ■Side transmission without SL PRS.

[0462] ■ Sideline transmission with or without SL PRS. For example, the DCI may indicate whether the sideline transmission is with or without SL PRS. In another example, the UE may determine whether the sideline transmission is with or without SL PRS.

[0463] The third sidelink RNTI may be an RNTI for dynamically scheduling one or more sidelink transmissions (or an RNTI for providing a sidelink dynamic grant), wherein the sidelink transmission may be one of the following:

[0464] ●Side transmission with SL PRS.

[0465] Sideline transmission with or without SL PRS. For example, the DCI may indicate whether the sideline transmission is with or without SL PRS. In another example, the UE may determine whether the sideline transmission is with or without SL PRS.

[0466] The fourth sideline RNTI may be an RNTI used for activation, reactivation, release, and partial or complete retransmission of the sideline configuration permission, wherein:

[0467] • Part or all of the “activate”, “reactivate”, and “release” may be applicable to type 2 sideline configuration permission.

[0468] The "retransmission" may be applicable to a type 2 sideline configuration grant. In this case, the corresponding DCI may be considered to provide a "sideline dynamic grant".

[0469] The "retransmission" may be applicable to a type 1 sideline configuration grant. In this case, the corresponding DCI may be considered to provide a "sideline dynamic grant".

[0470] The corresponding side transmission (e.g., part or all of "activation", "reactivation", and "retransmission") can be one of the following:

[0471] ■Side transmission with SL PRS.

[0472] ■ Sidelink transmission with or without SL PRS. For example, one or more DCIs indicate whether the sidelink transmission is with or without SL PRS; or one or more UEs independently determine whether the sidelink transmission is with or without SL PRS.

[0473] The (pre) configuration information of a sidelink configuration grant can be included in a SCGC (sidelink configured grant configuration), where:

[0474] ● One SCGC may include one or more parameters for the sideline configuration permission. One SCGC may correspond to one IE including the one or more parameters.

[0475] ●A SCGC may be associated with a period (eg, referred to as an "SCGC period"), wherein the period may be determined based on one or more parameters in the SCGC.

[0476] ●An SCGC can be associated with a sidelink configuration grant type (type), for example, the sidelink configuration grant type can be one of "type 1" and "type 2". For example, if the SCGC contains one or more parameters specific to type 1 sidelink configuration grant (for example, one or more parameters in the parameter rrc-ConfiguredSidelinkGrant), the sidelink configuration grant type can be "type 1", and the corresponding sidelink configuration grant can be a type 1 sidelink configuration grant; for another example, if the SCGC does not contain any parameters specific to type 1 sidelink configuration grant, the sidelink configuration grant type can be "type 2", and the corresponding sidelink configuration grant can be a type 2 sidelink configuration grant.

[0477] ●A type 1 sidewalk configuration license may correspond to a sidewalk resource that appears periodically with the "SCGC period" as the period. Accordingly, the "SCGC period" may be referred to as the period of the type 1 sidewalk configuration license; the type 1 sidewalk configuration license may be referred to as a "sidewalk license provided by RRC", for example, the type 1 sidewalk configuration license may be activated (activated) or released according to the RRC (pre) configuration information.

[0478] ●Part or all parameters of a Type 1 sidelink configuration grant (for example, including the index or identifier of the resource pool associated with the Type 1 sidelink configuration grant) can be (pre-)configured at the RRC layer or (pre-)configured at the PC5-RRC layer.

[0479] ●A type 2 sideline configuration grant may correspond to a sideline resource that appears periodically with the "SCGC period" as a period. Accordingly, the "SCGC period" may be referred to as the period of the type 2 sideline configuration grant; the type 2 sideline configuration grant may be activated or released according to the indication of physical layer signaling (e.g., DCI).

[0480] ●Some parameters of a type 2 sidelink configuration grant can be (pre-)configured at the RRC layer or (pre-)configured at the PC5-RRC layer.

[0481] ●Partial parameters of a type 2 sidelink configuration grant may be indicated in a DCI (eg, a DCI for activating the type 2 sidelink configuration grant), or may be determined at least in part based on an indication in the DCI.

[0482] ● The index or identifier of the resource pool associated with a Type 2 sideline configuration grant may be indicated in the DCI used to activate the Type 2 sideline configuration grant.

[0483] The UE may start to perform sidelink transmission on its corresponding sidelink resource after a sidelink configuration grant is activated (for example, activated through RRC configuration; or activated through an indication in DCI).

[0484] The UE may stop performing sidelink transmission on its corresponding sidelink resource after a sidelink configuration grant is released (for example, through RRC configuration release; or for example, through release indicated in DCI).

[0485] Depending on the type of resource pool to which it can be applied, an SCGC may be one of class A SCGC, class B SCGC, class C SCGC, class D SCGC, class E SCGC, class F SCGC, and part or all of class G SCGC, or an SCGC of another class, wherein,

[0486] ●A Class A SCGC can be applied to any resource pool.

[0487] ●A Class B SCGC can be applicable to (or only applicable to) a non-located resource pool or a shared located resource pool or a dedicated located resource pool.

[0488] ●A Class C SCGC can be applicable to (or only applicable to) a non-located resource pool or a shared located resource pool.

[0489] ●A Class D SCGC can be applicable to (or only applicable to) a shared positioning resource pool or a dedicated positioning resource pool.

[0490] ●A Class E SCGC can be applicable to (or only applicable to) one shared location resource pool.

[0491] ●A Class F SCGC can be applicable to (or only applicable to) a dedicated positioning resource pool.

[0492] ●A Class G SCGC can be applicable to (or only applicable to) a non-located resource pool.

[0493] In side-by-side operation, "any resource pool" can be a non-located resource pool, a shared located resource pool, or a dedicated located resource pool. In this case, a Class A SCGC can be considered a Class B SCGC, and vice versa.

[0494] The IEs corresponding to two SCGCs of different classes may be different or the same.

[0495] One or more parameters in the SCGC corresponding to a side configuration grant can be used to determine the type of resource pool to which the corresponding side configuration grant is actually applicable. For example, for a Class C SCGC, if the (pre) configuration information in the corresponding IE (for example, recorded as SL-ConfiguredGrantConfig) contains information related to SL PRS, then the resource pool associated with the side configuration grant can be (or can only be) a shared positioning resource pool; for another example, if the (pre) configuration information does not contain information related to SL PRS, then the resource pool associated with the side configuration grant can be (or can only be) a non-positioned resource pool; for another example, if the (pre) configuration information does not contain information related to SL PRS, then the resource pool associated with the side configuration grant can be (or can only be) a non-positioned resource pool or a shared positioning resource pool.

[0496] The IE corresponding to an F-type SCGC (for example, recorded as SL-Pos-ConfiguredGrantConfig, or recorded as SL-PRS-ConfiguredGrantConfig) may be different from the IE corresponding to a C-type SCGC.

[0497] The IE corresponding to an F-type SCGC may be different from the IE corresponding to an E-type SCGC.

[0498] The IE corresponding to an F-type SCGC may be different from the IE corresponding to a G-type SCGC.

[0499] A side configuration permission (e.g. ) corresponds to the SCGC (e.g. ) in the cycle (e.g. ) can be (pre)configured as a "SCGC cycle set" (e.g. ) in an element.

[0500] The collection can be based at least in part on the The associated resource pool (e.g. ) type and / or For example, for a non-located resource pool, the It can be equal to the first SCGC cycle set; for example, for a dedicated positioning resource pool, the It can be equal to the second SCGC cycle set; for example, for a shared positioning resource pool, the It may be equal to one of part or all of the following (for example, one of part or all of the following is determined in a predefined or (pre)configured manner):

[0501] ●The first SCGC period set.

[0502] ●The second SCGC period set.

[0503] ●The intersection of the first SCGC period set and the second SCGC period set.

[0504] ●The union of the first SCGC period set and the second SCGC period set.

[0505] ●Third SCGC cycle collection.

[0506] The first SCGC cycle set, the second SCGC cycle set, and the third SCGC cycle set may be partially the same or different from each other.

[0507] The IE corresponding to the first SCGC period set (for example, recorded as SL-PeriodCG), the IE corresponding to the second SCGC period set (for example, recorded as SL-Pos-PeriodCG, or recorded as SL-PRS-PeriodCG), and the IE corresponding to the third SCGC period set (for example, SL-Common-PeriodCG) may be partially the same, or different.

[0508] Each of the first SCGC cycle set, the second SCGC cycle set and the third SCGC cycle set may contain some or all elements of a reference SCGC cycle set, wherein the reference SCGC cycle set may be defined as {1 ms, 2 ms, ..., 99 ms, 100 ms, 200 ms, 300 ms, 400 ms, 500 ms, 600 ms, 700 ms, 800 ms, 900 ms, 1000 ms, 1 time slot, 2 time slots, ..., 99 time slots, 100 time slots, 200 time slots, 300 time slots, 400 time slots, 500 time slots, 600 time slots, 700 time slots, 800 time slots, 900 time slots, 1000 time slots}.

[0509] described It may be determined at least in part based on one or more of the following:

[0510] ● type.

[0511] ● Category.

[0512] ● A first SCGC period parameter (for example, recorded as sl-PeriodCG).

[0513] ● A second SCGC period parameter (for example, recorded as sl-Pos-PeriodCG, or recorded as sl-PRS-PeriodCG).

[0514] ● A third SCGC period parameter (for example, recorded as sl-Common-PeriodCG).

[0515] For example, the This can be determined based on one or more of the following:

[0516] ●For a non-located resource pool, the This may correspond to the first SCGC cycle parameter. For example, this may be applicable to part or all of Class A SCGC, Class B SCGC, Class C SCGC, and Class G SCGC.

[0517] For an unlocated resource pool, the second SCGC period parameter and / or the third SCGC period parameter may be ignored. For example, this may be applicable to part or all of Class A SCGC, Class B SCGC, Class C SCGC, and Class G SCGC.

[0518] ●For a dedicated positioning resource pool, the This may correspond to the second SCGC cycle parameter. For example, this may be applicable to part or all of Class A SCGC, Class B SCGC, Class D SCGC, and Class F SCGC.

[0519] For a dedicated positioning resource pool, the first SCGC period parameter and / or the third SCGC period parameter may be ignored. For example, this may be applicable to part or all of Class A SCGC, Class B SCGC, Class D SCGC, and Class F SCGC.

[0520] ●For a shared positioning resource pool, the This may correspond to the third SCGC cycle parameter. For example, this may be applicable to some or all of Class A SCGC, Class B SCGC, Class C SCGC, Class D SCGC, and Class E SCGC.

[0521] ● For a shared positioning resource pool, the first SCGC period parameter and / or the second SCGC period parameter may be ignored. For example, this may be applicable to some or all of Class A SCGC, Class B SCGC, Class C SCGC, Class D SCGC, and Class E SCGC.

[0522] The first SCGC cycle parameter, the second SCGC cycle parameter, and the third SCGC cycle parameter may be partially the same or different. For example, for some or all of Class A SCGC, Class B SCGC, Class C SCGC, and Class D SCGC, the second SCGC cycle parameter and the third SCGC cycle parameter may be the same parameter.

[0523] For a shared positioning resource pool, each sidelink transmission of a sidelink configuration grant may be one of some or all of the following items (for example, for a type 1 sidelink configuration grant and / or a type 2 sidelink configuration grant, which of the following items is determined according to one or more parameters in the corresponding SCGC; for another example, for a type 2 sidelink configuration grant, which of the following items is determined according to an indication in the DCI used to activate the sidelink configuration grant; for another example, the UE independently determines which of the following items is):

[0524] ● One sidelink transmission with SL PRS (eg, one PSCCH / PSSCH / SL PRS transmission).

[0525] ● A sidelink transmission without SL PRS (eg a PSCCH / PSSCH transmission).

[0526] For a shared positioning resource pool, the resource multiplexing type of each sidelink transmission of a sidelink configuration grant may be one of some or all of the following items (for example, for type 1 sidelink configuration grant and / or type 2 sidelink configuration grant, which of the following items is determined according to one or more parameters in the corresponding SCGC; for example, for type 2 sidelink configuration grant, which of the following items is determined according to the indication in the DCI used to activate the sidelink configuration grant; for example, the UE determines which of the following items is determined by itself):

[0527] • PSCCH / PSSCH. In this case, the sidelink transmission is a PSCCH / PSSCH transmission.

[0528] ●PSCCH / PSSCH / SL PRS. In this case, one of the following can be true:

[0529] ■ The sidelink transmission is a PSCCH / PSSCH / SL PRS transmission.

[0530] ■ The UE determines by itself whether the sidelink transmission is a PSCCH / PSSCH / SL PRS transmission or a PSCCH / PSSCH transmission.

[0531] Example 1

[0532] The method executed by the UE according to the first embodiment of the present disclosure is described below with reference to FIG. 1 .

[0533] FIG1 shows a flowchart corresponding to a method executed by the UE according to the first embodiment of the present disclosure.

[0534] As shown in FIG1 , in the first embodiment of the present disclosure, the steps performed by the UE include: step S101 and step S103 .

[0535] Specifically, in step S101, a side travel permission (e.g., ) related information (for example, one or more of scheduling information, configuration information, pre-configuration information, control information, and indication information).

[0536] described It can be a sideways grant for SL PRS (or, “SL PRS transmission”).

[0537] described It can be a sidewalk grant that can be used for SL PRS (or, "SL PRS transmission") or not used for SL PRS (or, "SL PRS transmission").

[0538] described It can be a sideways grant for positioning (or, "positioning transmission").

[0539] described It can be a sideways grant that can be used for positioning (or, "positioning transmission") or not used for positioning (or, "positioning transmission").

[0540] With the Part or all of the relevant information may be predefined or (pre)configured or indicated in a higher layer (e.g., PC5-RRC layer; or RRC layer; or MAC layer) protocol, wherein one or more of the following may be true:

[0541] ● The predefined or (pre)configured or indicated information is determined by one or more higher layer entities of the UE.

[0542] ●The predefined or (pre)configuration or indication information comes from higher layer signaling (eg PC5-RRC signaling) received by the UE and transmitted by another UE.

[0543] The predefined or (pre)configuration or indication information comes from higher layer signaling (eg, RRC signaling; or MAC signaling) received by the UE and transmitted by a base station.

[0544] With the Part or all of the relevant information may be received in the DCI (e.g., ) or may be based at least in part on The indication in the determination, wherein, for scrambling the The CRC RNTI can be recorded as described It can be carried in a PDCCH; the PDCCH can be transmitted to the UE by a base station.

[0545] described The corresponding DCI format (for example, ) may be a DCI format that may be used to schedule one or more sideline transmissions with SL PRS and / or one or more sideline transmissions without SL PRS, for example, It may be one of part or all of the first sideline scheduling DCI format, the third sideline scheduling DCI format, the fourth sideline scheduling DCI format, and the fifth sideline scheduling DCI format.

[0546] described It may be one of part or all of the first sideline RNTI, the second sideline RNTI, the third sideline RNTI, and the fourth sideline RNTI.

[0547] described It can be a sideways dynamic permission. In this case, the It can be called "by the A sideways dynamic permission provided dynamically".

[0548] described It can be a side configuration permission. In this case, the The corresponding SCGC may be one of part or all of Class A SCGC, Class B SCGC, Class C SCGC, Class D SCGC, Class E SCGC, and Class F SCGC.

[0549] described It can be a sideline configuration permission set (for example, denoted as In addition, the collection The number of elements in is recorded as ), where

[0550] ● Can be an integer greater than or equal to 1.

[0551] ●The collection The index of each element in can be called a "side configuration permission index", for example, the set in The side configuration permissions correspond to indexes 0, 1, ...,

[0552] ● A side configuration license may include Type 1 sideline configuration permissions and Type 2 sideline configuration permission, accordingly, in,

[0553] ■ Can be an integer greater than or equal to 0.

[0554] ■ Can be an integer greater than or equal to 0.

[0555] ■ Each of the type 1 sideline configuration permissions may correspond to a "type 1 sideline configuration permission index", for example, The type 1 side configuration permission indexes corresponding to the type 1 side configuration permission can be 0, 1, ...,

[0556] ■ Each of the type 2 sideline configuration permissions may correspond to a "type 2 sideline configuration permission index", for example, The type 2 side configuration permission indexes corresponding to the type 2 side configuration permission can be 0, 1, ...,

[0557] The UE may be configured to perform the following operations at least in part based on the described And the resource pool The type of part or all of the Is it for a side-by-side dynamic permission or a side-by-side configuration permission. For example, if the is the first side RNTI, then the Can be used to provide a side dynamic permission; for example, if the is the third side RNTI, then the Can be used to provide a side dynamic permission; for example, if the is the second side RNTI, then the Whether it is used to provide a side dynamic permission or one or more operations (such as activation; release) for a type 2 side configuration permission can be based on the One or more fields in are determined; for example, if the is the fourth side RNTI, then the Can be used to configure one or more operations (such as activation; release) on a type 2 sideline license; for example, if the is the fourth side RNTI, then the Whether it is used to provide a side dynamic permission or one or more operations (such as activation; release) for a type 2 side configuration permission can be based on the Determined by one or more fields in .

[0558] described The corresponding sideline resources may include a period of time (for example, the corresponding duration is ) in a carrier (e.g. ) a bandwidth segment (e.g., ) in a resource pool (e.g. ) Sideline resources (for example, recorded in chronological order as as well as ),in,

[0559] The carrier The bandwidth segment And the resource pool Each of the may correspond to a predefined or (pre) configured parameter, or may be determined according to one or more predefined or (pre) configured parameters, or may be determined in the Indicated in, or may be at least partially based on or may be determined in other ways.

[0560] The resource pool The type can be one of some or all of the following:

[0561] ■Shared positioning resource pool.

[0562] ■Dedicated positioning resource pool.

[0563] ● Can be an integer greater than or equal to 1. For example, For example, For example,

[0564] ● It may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may be determined based on the Indicated in, or may be at least partially based on or may be determined in other ways.

[0565] ● Each of some or all parameters of the sidelink resource (e.g., time domain parameters; another example, frequency domain parameters; another example, resource identifier) ​​may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may be in the Indicated in, or may be at least partially based on or may be determined in other ways.

[0566] ● It may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may be determined based on the Indicated in, or may be at least partially based on or may be determined in other ways.

[0567] ● Can correspond consecutive physical time slots, or may correspond to the resource pool in consecutive time slots (or “ consecutive logical time slots").

[0568] ● In some cases (e.g., when the is a Type 1 sideline configuration permit, and / or when the is a type 2 side configuration permission), the period of time may correspond to the A cycle of, accordingly, It can be the The cycle of The sideline resource can be Sideline resources in a cycle; The method for determining some or all parameters of the sideline resource is described in can be the same in every cycle.

[0569] ● In some cases (e.g., when the is a side-by-side dynamic permission), the period of time may correspond to the The time spanned by the sideline resources; The sideline resource can be All corresponding side resources.

[0570] right Sideline Resources May contain one PSCCH resource.

[0571] right Sideline Resources It may not contain any PSCCH resources. In this case, for example, The associated PSCCH resources may be based on predefined or (pre)configured to the PSCCH resource (or, from the PSCCH resource to the ) is determined by the mapping relationship.

[0572] To satisfy Part or all of r0, side resources It can be a sideline resource with SL PRS resource, that is, May contain a SL PRS resource (e.g., is the SL PRS resource), where

[0573] ●The SL PRS resource identifier corresponding to the SL PRS resource can be recorded as described It may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may be determined based on the Indicated in, or may be at least partially based on or may be determined in other ways.

[0574] ● It can be independent of r0 (i.e. ). In this case, you can Recorded as in, It may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may be determined based on the Indicated in, or may be at least partially based on or may be determined in other ways.

[0575] ●The PSCCH resource index corresponding to the PSCCH resource associated with the SL PRS resource can be recorded as For example, this can apply to the resource pool It is a case of a dedicated positioning resource pool.

[0576] ● It can be independent of r0 (i.e. ). In this case, you can Recorded as in, It may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may be determined based on the Indicated in, or may be at least partially based on or may be determined in other ways. For example, this may apply to the resource pool It is a case of a dedicated positioning resource pool.

[0577] To satisfy Part or all of r0, side resources It can be a sideline resource without SL PRS resource, that is, It may not contain any SL PRS resources.

[0578] right Sideline Resources The time slot (e.g. ) and side resources The time slot (e.g. ) can satisfy in,

[0579] ● Can be an integer greater than or equal to 1. For example, For example, For example,

[0580] ● It may correspond to a predefined or (pre) configured parameter, or may be determined based on one or more predefined or (pre) configured parameters, or may be determined based on the Indicated in, or may be at least partially based on or may be determined in other ways.

[0581] ● Can correspond consecutive physical time slots, or may correspond to the resource pool in consecutive time slots (or “ consecutive logical time slots").

[0582] In the is a side-by-side configuration permit (e.g. when the As stated Instructions and is one of the second side row RNTI and part or all of the fourth side row RNTI), the The corresponding index can be obtained by A field in the resource pool (e.g., called a "configuration index" field) indicates that the definition of the index can be related to the resource pool. Type, and the For example, when the type 1a-1 sidewalk permission condition is met (or when the type 1a-2 sidewalk permission condition is not met), the index can be a "type 2 sidewalk configuration permission index", and accordingly, the "configuration index" field can be used to indicate the The size of the "configuration index" field may be a predefined or (pre) configured value (e.g., 3 bits; or 2 bits; or 1 bit), or may be determined based on the Determine (for example, the size of the "configuration index" field may be equal to bit); For example, when the type 1a-2 sideline permission condition is met (or when the type 1a-1 sideline permission condition is not met), the index may be a "sideline configuration permission index", and accordingly, the "configuration index" field may be used to indicate the The size of the "configuration index" field may be a predefined or (pre) configured value (e.g., 3 bits; or 2 bits; or 1 bit), or may be determined based on the Determine (for example, the size of the "configuration index" field may be equal to bits).

[0583] The type 1a-1 sidewalk permission condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0584] The resource pool It is a dedicated positioning resource pool.

[0585] The resource pool It is a dedicated positioning resource pool or a shared positioning resource pool.

[0586] ● yes

[0587] ● yes

[0588] The type 1a-2 sidewalk permission condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0589] The resource pool It is a shared positioning resource pool.

[0590] The resource pool It is a dedicated positioning resource pool or a shared positioning resource pool.

[0591] ● yes

[0592] ● yes

[0593] In some cases (e.g., when Type 1b-1 sideways permission conditions are met), The sideline transmission on each of the sideline resources may be one of the following (eg, which of the following may be determined in a predefined or (pre)configured manner):

[0594] ● One PSCCH / SL PRS transmission (eg when the corresponding sidelink resource includes one PSCCH resource).

[0595] ● An independent SL PRS transmission (for example, when the corresponding sidelink resources do not include any PSCCH resources). In this case, it can be considered that the PSCCH resources corresponding to the PSCCH transmission associated with the SL PRS transmission are implicitly indicated.

[0596] The type 1b-1 sidewalk permission condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0597] The resource pool It is a dedicated positioning resource pool.

[0598] The resource pool It is a dedicated positioning resource pool or a shared positioning resource pool.

[0599] ● yes

[0600] ● yes

[0601] In some cases (e.g., when Type 1b-2 sidewalk permission conditions are met), The sidelink transmission on each of the sidelink resources may be one of part or all of the following (for example, determining which of the part or all of the following is to be in a predefined or (pre)configured manner; for example, determining which of the part or all of the following is to be to be by the UE itself):

[0602] ● One sidelink transmission with SL PRS (eg, one PSCCH / PSSCH / SL PRS transmission).

[0603] ● A sidelink transmission without SL PRS (eg a PSCCH / PSSCH transmission).

[0604] The type 1b-2 sidewalk permission condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0605] The resource pool It is a shared positioning resource pool.

[0606] The resource pool It is a dedicated positioning resource pool or a shared positioning resource pool.

[0607] ● yes

[0608] ● yes

[0609] In some cases (e.g., when the Type 1b-2 sidewalk permission conditions are met), The resource multiplexing type of the sideline transmission on each of the sideline resources can be Instructions (e.g., by ), or may be based at least in part on the Specifically, for example, the "SL PRS multiplexing indicator" field may indicate one of the following resource multiplexing types:

[0610] ●PSCCH / PSSCH. In this case, The sidelink transmission on each of the sidelink resources may be a PSCCHH / PSSCH transmission.

[0611] ●PSCCH / PSSCH / SL PRS. In this case, one of the following can be true:

[0612] ■In the The sidelink transmission on each of the sidelink resources may be a PSCCH / PSSCH / SL PRS transmission.

[0613] ■ The UE determines by itself the The sidelink transmission on each of the sidelink resources is either a PSCCH / PSSCH / SL PRS transmission or a PSCCH / PSSCH transmission.

[0614] In some cases (e.g., when Type 1c-1 sideways permit conditions are met), one or more of the following may hold:

[0615] ● The first of the side resources ) time slot Can be in the Indicated in (for example, by the ), or may be based at least in part on the is determined by the indication in (e.g., the "time interval" field).

[0616] ● Can be in the Indicated in, or may be at least partially based on Follow the instructions in the confirmation.

[0617] ● Can be in the Indicated in (for example, by the A field in the , wherein the field may be referred to as "PSCCH resource index associated with the first SL PRS resource", or as "PSCCH resource index"), or may be at least partially based on the , which is determined by the indication in (for example, the "PSCCH resource index associated with the first SL PRS resource" field).

[0618] ● as well as Part or all of the Indicated in, or may be at least partially based on Follow the instructions in the confirmation.

[0619] ● Can be in the Indicated in (for example, by the wherein the field may be referred to as “the SL PRS resource identifier corresponding to the first SL PRS resource” or “the SL PRS resource identifier”), or may be at least partially based on the The indication in (for example, the "SL PRS resource identifier corresponding to the first SL PRS resource" field) is determined.

[0620] ● (or, ) can be in the Indicated in, or may be at least partially based on Follow the instructions in the confirmation.

[0621] The type 1c-1 sidewalk permission condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0622] The resource pool It is a dedicated positioning resource pool.

[0623] The resource pool It is a dedicated positioning resource pool or a shared positioning resource pool.

[0624] ● It is stated A sideways dynamic permission is provided.

[0625] ● It is stated Indicates a Type 2 sideline configuration permission.

[0626] ● Used to provide a dynamic permission for sidewalking.

[0627] ● It is stated indicates a Type 1 sideline configuration permission, and the Used to provide a dynamic permission for sidewalking.

[0628] ● It is stated indicates a Type 2 sideline configuration permission, and the Used to provide a dynamic permission for sidewalking.

[0629] ● yes

[0630] ● yes

[0631] In some cases (e.g., when the Type 1c-2 sidewalk permission condition is met), one or more of the following may be true, wherein each of some or all of the mentioned parameters may be the A parameter in the IE corresponding to the corresponding SCGC (for example, the SCGC for type 1 sideline configuration grant):

[0632] ●The time slot It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters.

[0633] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters.

[0634] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters.

[0635] ● Each of part or all of may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters.

[0636] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters.

[0637] ● It may correspond to a predefined or (pre)configured parameter, or may be determined according to one or more predefined or (pre)configured parameters.

[0638] ● (or, ) may correspond to a predefined or (pre)configured parameter, or may be determined based on one or more predefined or (pre)configured parameters.

[0639] The type 1c-2 sidewalk permission condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0640] The resource pool It is a dedicated positioning resource pool.

[0641] The resource pool It is a dedicated positioning resource pool or a shared positioning resource pool.

[0642] ● Is a Type 1 sideline configuration permission.

[0643] ● Not applicable or does not exist.

[0644] In addition, in step S103, one or more operations related to the sidewalk permission (i.e., the ) related operations.

[0645] For example, the one or more )-related operations may include one or more of the following:

[0646] ●Confirm the Parameters of sidelink resources (such as time domain and / or frequency domain parameters), for example, parameters of the SL PRS resource contained in each sidelink resource and its associated PSCCH resource.

[0647] ● In some cases (e.g., when the Type 1c-1 sideways permission conditions are met), Instructions in the One or more scheduled side transmissions.

[0648] ● In some cases (e.g., when the is a side configuration permission), according to the (pre) configuration information and / or the Instructions in the One or more associated side transmissions.

[0649] ●Verify the One or more operations indicated in the RRC (pre)configuration information.

[0650] ● In some cases (e.g., when the is a side configuration permission), according to the Instructions in, or according to RRC (pre) configuration information, activate the

[0651] ● In some cases (e.g., when the is a side configuration permission), according to the Instructions in, or according to RRC (pre) configuration information, release the

[0652] Specifically, for example, if the type 1d-1 sidewalk permission condition is met, a type 2 sidewalk configuration permission verification may be performed, wherein the type 2 sidewalk configuration permission verification may include one or more of the following:

[0653] ●Verify the Whether it is valid, used to activate or release a type 2 sideline configuration grant DCI.

[0654] ●Verify the Whether the DCI format used to activate or release a Type 2 sideline configuration grant is valid.

[0655] ●Verify that the Whether the PDCCH is valid and is used to activate or release a PDCCH with type 2 sidelink configuration permission.

[0656] The type 1d-1 sideways permission condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0657] The resource pool It is a dedicated positioning resource pool.

[0658] The resource pool It is a dedicated positioning resource pool or a shared positioning resource pool.

[0659] ● yes

[0660] ● yes

[0661] If the type 1d-2 sidewalk permission condition is satisfied (or if the type 1d-3 sidewalk permission condition is satisfied (e.g., when the type 1d-2 sidewalk permission condition is for a release operation)), one or more of the following may be true:

[0662] ● is a valid DCI for activating a type 2 sideline configuration grant. The information in can correspond to a valid Activation operation.

[0663] ● It is a valid DCI format used to activate a Type 2 sideline configuration grant.

[0664] ● Carry the The PDCCH is valid and is used to activate a type 2 sidelink configuration grant.

[0665] If the type 1d-3 sidewalk permission condition is satisfied (or if the type 1d-2 sidewalk permission condition is satisfied (e.g., when the type 1d-3 sidewalk permission condition is used for activation operation)), one or more of the following may be true:

[0666] ● is a valid DCI for releasing a type 2 sideline configuration grant. The information in can correspond to a valid Release operation.

[0667] ● It is a valid DCI format used to release a Type 2 sideline configuration grant.

[0668] ● Carry the The PDCCH is valid and is used to release a type 2 sidelink configuration grant.

[0669] The type 1d-2 sidewalk permission condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0670] ● Used to indicate the One or more fields are set to all 0s.

[0671] ● Indicates the inclusion of A field of the information included is set to all 0s.

[0672] ● Used to indicate the One or more fields are set to all 0s.

[0673] ● Indicates the inclusion of A field of the information included is set to all 0s.

[0674] ● Used to indicate the One or more fields are set to all 0s.

[0675] ● Indicates the inclusion of A field of the information included is set to all 0s.

[0676] ● Used to indicate the as well as Some or all of one or more fields are set to all 0s.

[0677] ● Indicates the inclusion of as well as A field containing part or all of the information is set to all 0s.

[0678] ● Used to indicate the One or more fields are set to all 0s.

[0679] ● Indicates the inclusion of A field of the information included is set to all 0s.

[0680] ● Used to indicate the One or more fields are set to all 0s.

[0681] ● Indicates the inclusion of A field of the information included is set to all 0s.

[0682] ● Used to indicate the One or more fields are set to all 0s.

[0683] ● Indicates the inclusion of A field of the information included is set to all 0s.

[0684] The type 1d-3 sidewalk permission condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0685] ● Used to indicate the One or more fields are set to all 1s.

[0686] ● Indicates the inclusion of A field of the information included is set to all 1s.

[0687] ● Used to indicate the One or more fields are set to all 1s.

[0688] ● Indicates the inclusion of A field of the information included is set to all 1s.

[0689] ● Used to indicate the One or more fields are set to all 1s.

[0690] ● Indicates the inclusion of A field of the information included is set to all 1s.

[0691] ● Used to indicate the as well as Some or all of one or more fields are set to all 1s.

[0692] ● Indicates the inclusion of as well as A field containing part or all of the information is set to all 1s.

[0693] ● Used to indicate the One or more fields are set to all 1s.

[0694] ● Indicates the inclusion of A field of the information included is set to all 1s.

[0695] ● Used to indicate the One or more fields are set to all 1s.

[0696] ● Indicates the inclusion of A field of the information included is set to all 1s.

[0697] ● Used to indicate the One or more fields are set to all 1s.

[0698] ● Indicates the inclusion of A field of the information included is set to all 1s.

[0699] If the type 2 side configuration permission verification cannot be verified when executing the Is a valid DCI for activating or releasing a Type 2 sideline configuration grant (or, if the Is a valid DCI format for activating or releasing a type 2 sideline configuration grant; or, cannot verify that the The PDCCH is valid and is used to activate or release a type 2 sideline configuration grant PDCCH), then the All information in.

[0700] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured RNTI, for example, It may be one of part or all of the first sideline RNTI, the second sideline RNTI, the third sideline RNTI, and the fourth sideline RNTI.

[0701] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured DCI format, for example, It may be one of part or all of the first sideline scheduling DCI format, the third sideline scheduling DCI format, the fourth sideline scheduling DCI format, and the fifth sideline scheduling DCI format.

[0702] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured RNTI, for example, It may be one of part or all of the first sideline RNTI, the second sideline RNTI, the third sideline RNTI, and the fourth sideline RNTI.

[0703] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured DCI format, for example, It may be one of part or all of the first sideline scheduling DCI format, the third sideline scheduling DCI format, the fourth sideline scheduling DCI format, and the fifth sideline scheduling DCI format.

[0704] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured RNTI, for example, It may be one of part or all of the first sideline RNTI, the second sideline RNTI, the third sideline RNTI, and the fourth sideline RNTI.

[0705] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured DCI format, for example, It may be one of part or all of the first sideline scheduling DCI format, the third sideline scheduling DCI format, the fourth sideline scheduling DCI format, and the fifth sideline scheduling DCI format.

[0706] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured RNTI, for example, It may be one of part or all of the first sideline RNTI, the second sideline RNTI, the third sideline RNTI, and the fourth sideline RNTI.

[0707] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured DCI format, for example, It may be one of part or all of the first sideline scheduling DCI format, the third sideline scheduling DCI format, the fourth sideline scheduling DCI format, and the fifth sideline scheduling DCI format.

[0708] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured RNTI, for example, It may be one of part or all of the first sideline RNTI, the second sideline RNTI, the third sideline RNTI, and the fourth sideline RNTI.

[0709] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured DCI format, for example, It may be one of part or all of the first sideline scheduling DCI format, the third sideline scheduling DCI format, the fourth sideline scheduling DCI format, and the fifth sideline scheduling DCI format.

[0710] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured RNTI, for example, It may be one of part or all of the first sideline RNTI, the second sideline RNTI, the third sideline RNTI, and the fourth sideline RNTI.

[0711] In the first embodiment of the present disclosure, the It can be a predefined or (pre)configured DCI format, for example, It may be one of part or all of the first sideline scheduling DCI format, the third sideline scheduling DCI format, the fourth sideline scheduling DCI format, and the fifth sideline scheduling DCI format.

[0712] In the first embodiment of the present disclosure, setting a field to all 0s (or setting the value of the field to all 0s) may refer to setting all bits in the field to 0.

[0713] In the first embodiment of the present disclosure, setting a field to all 1s (or setting the value of the field to all 1s) may refer to setting all bits in the field to 1.

[0714] Embodiment 1 of the present disclosure may be applicable to (or only applicable to) sidelink resource allocation mode 1.

[0715] The first embodiment of the present disclosure may be applicable to (or only applicable to) operations without shared spectrum channel access (eg, operations on licensed spectrum).

[0716] Embodiment 1 of the present disclosure may be applicable to (or only applicable to) operations with shared spectrum channel access (eg, operations on unlicensed spectrum).

[0717] Thus, according to embodiment one, the present disclosure provides a method, which indicates the PSCCH resource index of the PSCCH corresponding to one or more SL PRS transmissions in a DCI used to schedule one or more SL PRS transmissions in a dedicated positioning resource pool, so that the UE can determine the SL PRS resource identifier corresponding to the one or more SL PRS transmissions according to a predefined mapping relationship from the PSCCH resource index to the SL PRS resource identifier, thereby improving the signaling indication efficiency; in addition, when using an RNTI configured for a sideline configuration license for positioning to scramble the DCI, by setting the PSCCH resource index in the DCI to all 0s and all 1s, respectively, to indicate the corresponding activation and release of the type 2 sideline configuration license, the DCI signaling design is simplified and the signaling efficiency is improved; in addition, for the type 1 sideline configuration license, by configuring a parameter identical to the PSCCH resource index in the DCI, it is used to determine the SL PRS resource identifier corresponding to the SL PRS transmission of the type 1 sideline configuration license within a period, thereby simplifying the configuration method of the type 1 sideline configuration license and improving the signaling efficiency.

[0718] Example 2

[0719] The method executed by the UE in the second embodiment of the present disclosure is described below with reference to FIG. 2 .

[0720] FIG2 shows a flowchart corresponding to a method executed by the UE according to the second embodiment of the present disclosure.

[0721] As shown in FIG2 , in the second embodiment of the present disclosure, the steps performed by the UE include: step S201 and step S203 .

[0722] Specifically, in step S201, a MAC PDU (Protocol Data Unit) is generated.

[0723] The step S201 may include determining whether the MAC PDU needs to be generated. For example, if the MAC PDU is not generated, the step S203 is not performed. For another example, if the MAC PDU is generated, the step S203 is performed.

[0724] The MAC PDU may be generated for a side transmission (e.g., a new transmission) corresponding to an SCI, wherein the side transmission may be associated with an identifier pair (ID pair) consisting of a source layer 2 identifier (Source Layer-2 ID), a destination layer 2 identifier (Destination Layer-2 ID), and a cast type (e.g., unicast; or multicast; or broadcast).

[0725] The transport channel on which the data (if any) and / or control information (if any) carried by the MAC PDU is located may be a SL-SCH (Sidelink Shared Channel).

[0726] The sideline transmission may include at least one PSSCH transmission and its associated PSCCH transmission. The resource pool where the sideline resource corresponding to the sideline transmission is located (e.g., ) can be a non-located resource pool, or can be a located resource pool (e.g., a shared located resource pool).

[0727] The sidelink transmission may be a sidelink transmission with an SL PRS (e.g., a PSCCH / PSSCH / SL PRS transmission). For example, an SL PRS may be multiplexed in the sidelink transmission when one or more conditions including one or more of the following are met:

[0728] The resource pool It is a shared positioning resource pool.

[0729] • One or more indications of transmission SL PRS from higher layers may be applicable to the sideline transmission.

[0730] The sidelink transmission may be a sidelink transmission without SL PRS (eg, a PSCCH / PSSCH transmission).

[0731] Part or all of the source layer 2 identifier, the destination layer 2 identifier, and the propagation type may be indicated by a higher layer entity.

[0732] The format of the MAC PDU may be one of a type 2a sidelink MAC PDU format and a type 2b sidelink MAC PDU format, or another sidelink MAC PDU format.

[0733] In the type 2a sidelink MAC PDU format, a MAC PDU may include a SL-SCH subheader (SL-SCH subheader, or SL-SCH MAC subheader, SL-SCH MAC subheader) and one or more MAC sub-PDUs (MAC subPDUs).

[0734] In the type 2b sidelink MAC PDU format, one MAC PDU may consist of only one SL-SCH subheader (eg, the MAC PDU does not include any MAC sub-PDU).

[0735] An SL-SCH subheader may contain one or more of the following:

[0736] A V field. The V field (also known as the "MAC PDU format version number field") may be used to indicate the version of the SL-SCH subheader used. The V field may be 4 bits in size. For the Type 2a sidelink MAC PDU format, the V field may be set to 0; for the Type 2b sidelink MAC PDU format, the V field may be set to a predefined or (pre)configured non-zero value (e.g., 1).

[0737] ● One or more (eg, 4) R fields. Each R field may correspond to a reserved bit; each reserved bit may be set to 0.

[0738] ● An SRC field. The SRC field may be used to carry the 16 MSBs of the source layer 2 identifier. The size of the SRC field may be 16 bits.

[0739] ● A DST field. The DST field may be used to carry the 8 MSBs of the destination layer 2 identifier. The size of the DST field may be 8 bits.

[0740] A MAC sub-PDU can use one of several formats including one or more of the following:

[0741] ●A MAC sub-PDU may include only one MAC subheader, wherein the MAC subheader may include padding (for example, padding consisting of one or more padding bits).

[0742] ●A MAC sub-PDU may include a MAC sub-header and a MAC SDU (Service Data Unit).

[0743] ●A MAC sub-PDU may include a MAC sub-header and a MAC CE (Control Element).

[0744] ●A MAC sub-PDU can contain a MAC sub-header and padding.

[0745] Each MAC subheader (eg, MAC subheaders other than the SL-SCH subheader) may have a corresponding MAC SDU, a MAC CE, or padding.

[0746] The generation condition of the MAC PDU may be at least partially related to the resource pool For example, one or more of the following may be true:

[0747] ●If the resource pool If it is a non-positioned resource pool and meets the type 2a PDU generation conditions, the MAC PDU may not be generated.

[0748] ●If the resource pool If it is a non-positioned resource pool and does not meet the type 2a PDU generation conditions, the MAC PDU can be generated.

[0749] If the resource pool It is a non-positioned resource pool and meets the type 2b PDU generation conditions, then the MAC PDU can be generated.

[0750] If the resource pool If it is a non-positioned resource pool and does not meet the type 2b PDU generation conditions, the MAC PDU may not be generated.

[0751] ●If the resource pool If it is a shared positioning resource pool and meets the type 2c PDU generation conditions, the MAC PDU may not be generated.

[0752] If the resource pool It is a shared positioning resource pool and does not meet the type 2cPDU generation conditions, then the MAC PDU can be generated.

[0753] ●If the resource pool It is a shared positioning resource pool and meets the type 2d PDU generation conditions, then the MAC PDU can be generated.

[0754] If the resource pool If it is a shared positioning resource pool and the type 2dPDU generation condition is not met, the MAC PDU may not be generated.

[0755] The Type 2aPDU generation condition may include one or more of the following (for example, any combination in an "AND" or "OR" manner):

[0756] • No sidelink MAC CE is generated for the PSSCH transmission.

[0757] • No MAC SDU may be used for the MAC PDU.

[0758] The Type 2b PDU generation condition may include one or more of the following (for example, any combination in an "AND" or "OR" manner):

[0759] • One or more sidelink MAC CEs have been generated for the PSSCH transmission.

[0760] • There may be one or more MAC SDUs for the MAC PDU.

[0761] The Type 2c PDU generation condition may include one or more of the following (for example, any combination in an "AND" or "OR" manner):

[0762] • No sidelink MAC CE is generated for the PSSCH transmission.

[0763] • No MAC SDU may be used for the MAC PDU.

[0764] • No SL PRS may be multiplexed for the sideline transmission.

[0765] The Type 2d PDU generation condition may include one or more of the following (for example, any combination in an "AND" or "OR" manner):

[0766] • One or more sidelink MAC CEs have been generated for the PSSCH transmission.

[0767] • There may be one or more MAC SDUs for the MAC PDU.

[0768] ● SL PRS can be multiplexed for the sideline transmission.

[0769] The format of the MAC PDU may be predefined as the type 2a sidelink MAC PDU format.

[0770] The format of the MAC PDU may be based at least in part on the resource pool The type and / or resource multiplexing mode of the side transmission is determined.

[0771] For example, if the type 2a resource reuse condition is met, the MAC PDU may use the type 2a sidelink MAC PDU format.

[0772] For another example, if the type 2b resource reuse condition is met, the MAC PDU may use the type 2a sidelink MAC PDU format.

[0773] For another example, if the type 2c resource reuse condition is met, the MAC PDU may use the type 2a sidelink MAC PDU format.

[0774] For another example, if the type 2d resource reuse condition is met, the MAC PDU may use the type 2a sidelink MAC PDU format.

[0775] For another example, if the type 2e resource reuse condition is met (or if the type 2f resource reuse condition is met), one or more of the following items may be performed:

[0776] ● Use Type 2b sidelink MAC PDU format for the MAC PDU.

[0777] ●Set the source layer 2 identifier associated with the MAC PDU to the source layer 2 identifier associated with the SL PRS multiplexed in the sidelink transmission.

[0778] ●Set the destination layer 2 identifier associated with the MAC PDU to the destination layer 2 identifier associated with the SL PRS multiplexed in the sidelink transmission.

[0779] ●Set the SRC field in the SL-SCH subheader in the MAC PDU to the 16 MSBs of the source layer 2 identifier associated with the SL PRS multiplexed in the sidelink transmission.

[0780] ● Set the DST field in the SL-SCH subheader in the MAC PDU to the 8 MSBs of the destination layer 2 identifier associated with the SL PRS multiplexed in the sidelink transmission.

[0781] Determine part or all of the sidelink transmission information of the TB corresponding to the MAC PDU based on one or more of the following:

[0782] ■ Set the Source Layer-1 ID in the sidelink transmission information to the 8 LSBs of the Source Layer-2 ID of the MAC PDU.

[0783] ■ Set the destination layer 1 ID in the sidelink transmission information to the 16 LSBs of the destination layer 2 ID of the MAC PDU.

[0784] ■ Set the propagation type in the sidelink transmission information to the propagation type associated with the SL PRS multiplexed in the sidelink transmission.

[0785] ■ Setting the HARQ (Hybrid Automatic Repeat reQuest) feedback enabled / disabled indicator in the sidelink transmission information to disabled.

[0786] ■ Set the priority in the sideline transmission information to the value of the priority associated with the SL PRS multiplexed in the sideline transmission.

[0787] The type 2a resource reuse condition may be: the resource pool It is a non-positioned resource pool.

[0788] The type 2b resource reuse condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0789] The resource pool It is a shared positioning resource pool.

[0790] • No SL PRS may be multiplexed for the sideline transmission.

[0791] The type 2c resource reuse condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0792] The resource pool It is a shared positioning resource pool.

[0793] ● SL PRS can be multiplexed for the sideline transmission.

[0794] ●The Type 2a PDU generation conditions are not met.

[0795] The type 2d resource reuse condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0796] The resource pool It is a shared positioning resource pool.

[0797] ● SL PRS can be multiplexed for the sideline transmission.

[0798] ●The Type 2b PDU generation conditions are met.

[0799] The type 2e resource reuse condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0800] The resource pool It is a shared positioning resource pool.

[0801] ● SL PRS can be multiplexed for the sideline transmission.

[0802] ●The Type 2a PDU generation conditions are met.

[0803] The type 2f resource reuse condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0804] The resource pool It is a shared positioning resource pool.

[0805] ● SL PRS can be multiplexed for the sideline transmission.

[0806] ● The Type 2b PDU generation conditions are not met.

[0807] Furthermore, in step S203, the MAC PDU is transmitted.

[0808] For example, the sideline transmission carrying the MAC PDU may at least partially include instructing the physical layer entity to set one or more fields in the SCI associated with the sideline transmission to the values ​​of corresponding parameters in the sideline transmission information of the TB corresponding to the MAC PDU.

[0809] In the second embodiment of the present disclosure, a sidelink MAC CE may be a sidelink CSI reporting (Sidelink CSI Reporting) MAC CE, or may be a sidelink DRX command (Sidelink DRX Command) MAC CE, or may be a sidelink inter-UE coordination request (Sidelink Inter-UE Coordination Request) MAC CE, or may be a sidelink inter-UE coordination information (Sidelink Inter-UE Coordination Information) MAC CE, or may be other MAC CE that can be transmitted on the corresponding sidelink.

[0810] The steps in the second embodiment of the present disclosure may be performed by the MAC entity of the UE.

[0811] The second embodiment of the present disclosure may be applicable to (or only applicable to) sidelink resource allocation mode 1.

[0812] The second embodiment of the present disclosure may be applicable to (or only applicable to) sidelink resource allocation mode 2.

[0813] The second embodiment of the present disclosure may be applicable to (or only applicable to) operations without shared spectrum channel access (for example, operations on licensed spectrum).

[0814] The second embodiment of the present disclosure may be applicable to (or only applicable to) operations with shared spectrum channel access (for example, operations on unlicensed spectrum).

[0815] Thus, according to the second embodiment, the present disclosure provides a method for generating a MAC PDU containing only one SL-SCH subheader when it is necessary to transmit SL PRS in a shared positioning resource pool but there is no sidelink MAC CE and MAC SDU that can be included in the corresponding sidelink transmission (i.e., PSCCH / PSSCH / SL PRS transmission). This greatly reduces the load size of the MAC PDU in this case and improves the efficiency of sidelink resource utilization. In addition, by directly setting the sidelink transmission information of the TB carried by the MAC PDU to the corresponding information of the SL PRS multiplexed in the sidelink transmission, the signaling design is simplified.

[0816] Modifications

[0817] 3 is used to illustrate 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.

[0818] FIG3 is a block diagram showing a user equipment involved in the present disclosure.

[0819] As shown in Figure 3, the user equipment UE30 includes a processor 301 and a memory 302. The processor 301 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The memory 302 may include, for example, a volatile memory (such as a random access memory (RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory. The memory 302 stores program instructions. When executed by the processor 301, these instructions may execute the above-described method performed by the user equipment as described in detail in this disclosure.

[0820] The method of the present disclosure and the user equipment involved have been described above in conjunction with preferred embodiments. Those skilled in the art will appreciate that the method illustrated above is merely exemplary, and that the various embodiments described above can be combined with one another unless conflicts arise. The method of the present disclosure is not limited to the steps and sequence illustrated above. The user equipment illustrated above may include further modules. The various identifiers illustrated above are merely exemplary and not restrictive, and the present disclosure is not limited to the specific information elements used as examples of these identifiers. Based on the teachings of the illustrated embodiments, those skilled in the art may make numerous variations and modifications.

[0821] Those skilled in the art should understand that any set is a subset of itself; the empty set is a subset of any set; part or all of a mathematical expression, mathematical equation, or mathematical inequality can be simplified, transformed, or rewritten to a certain extent (for example, merging constant terms, exchanging two additive terms, exchanging two multiplication terms, changing the sign of a term and moving it from the left side to the right side of the equation or inequality, changing the sign of a term and moving it from the right side to the left side of the equation or inequality, etc.), and the mathematical expressions, mathematical equations, or mathematical inequalities before and after simplification, transformation, or rewriting can be considered equivalent.

[0822] It should be understood that the above embodiments of the present disclosure can be implemented through software, hardware, or a combination of software and hardware. For example, the various components within the user equipment in the above embodiments can be implemented through a variety of devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processors, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), programmable logic devices (CPLDs), and the like.

[0823] In this disclosure, "base station" may refer to a mobile communication data and / or control switching center with a certain transmission power and coverage area, and may include functions such as resource allocation and scheduling, data reception and transmission, etc. "User equipment" may refer to a user's mobile terminal, such as a mobile phone or laptop, that can wirelessly communicate with a base station or micro base station.

[0824] In addition, the embodiments of the present disclosure disclosed herein can be implemented on a computer program product. More specifically, the computer program product is a product as follows: having a computer-readable medium, on which a computer program logic is encoded, and when executed on a computing device, the computer program logic provides relevant operations to implement the above-mentioned technical solutions of the present disclosure. When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present disclosure. This arrangement of the present disclosure is typically provided as software, code and / or other data structures arranged or encoded on a computer-readable medium such as an optical medium (e.g., CD-ROM), a floppy disk or a hard disk, or other media such as firmware or microcode on one or more ROM or RAM or PROM chips, or downloadable software images, shared databases, etc. in one or more modules. Software or firmware or this configuration can be installed on a computing device so that one or more processors in the computing device execute the technical solutions described in the embodiments of the present disclosure.

[0825] In addition, each functional module or each feature of the user equipment used in each of the above embodiments can be implemented or executed by a circuit, which is typically one or more integrated circuits. The circuits designed to perform the various functions described in this specification may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC) or a general-purpose integrated circuit, a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, or a discrete hardware component, or any combination of the above devices. The general-purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller or state machine. The general-purpose processor or each circuit may be configured by a digital circuit, or may be configured by a logic circuit. In addition, when, due to advances in semiconductor technology, advanced technologies that can replace current integrated circuits emerge, the present disclosure may also use integrated circuits obtained using the advanced technologies.

[0826] Although the present disclosure has been described above with reference to the preferred embodiments thereof, it will be understood by those skilled in the art that various modifications, substitutions, and changes may be made to the present disclosure without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure should not be limited by the above-described embodiments, but by the appended claims and their equivalents.

Claims

1. A method performed by a user equipment UE, characterized in that include: In a time slot in a shared resource pool that can be used for PSSCH and SL PRS, determine the time occupied by a SL PRS consecutive OFDM symbols, and Transmit the SL PRS, in, Said OFDM symbol is the latest one that satisfies the first sidelink symbol condition. consecutive OFDM symbols, wherein the first sideline symbol condition may at least partially include: Said The first OFDM symbol of the OFDM symbols is after the last OFDM symbol of the second stage SCI associated with the SL PRS, and Said OFDM symbols are not used for the PSCCH associated with the SL PRS, and Said OFDM symbols are not used for PSSCH DMRS, and, Said OFDM symbols are not used for CSIRS.

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