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: for NTX,F PF PSFCHs to be transmitted and NTX,F PF PSFCHs to be received within a PSFCH occasion, for an operation for shared spectrum channel access, if a UE determines to perform PSFCH transmission, the UE does not support PSFCH transmission within a non-contiguous RB set, and none of the NTX,F PF PSFCHs to be transmitted and the NRX,F PF PSFCHs to be received is a PSFCH carrying HARQ-ACK information, selecting any contiguous RB set containing a PSFCH having a minimum priority value from RB sets where the NTX,F PF PSFCHs to be transmitted are respectively located, so as to use same for PSFCH transmission.

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 (e.g., eNB, also such as gNB). The radio link (radio link) from the base station to the UE can be called a downlink (DL), 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 (e.g., an NR-Uu interface based on NR; or an LTE-Uu interface based on LTE). The interface for wireless transmission and / or reception between UEs may be referred to as a PC5 interface (e.g., an NR-PC5 interface based on NR; or an LTE-PC5 interface based on LTE). The UE may transmit or receive in one or more BWPs (Bandwidth Parts) in each of one or more carriers, where each carrier may be an uplink carrier, a downlink carrier, or a sidecar carrier.

[0003] 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 and / or estimated based on measurements of downlink signals, uplink signals, and / or sidelink signals.

[0004] To support various services in wireless communication systems, such as some or all of communication, positioning, and ranging, a series of issues need to be addressed, such as operations on licensed and unlicensed spectrum; operations on paired and unpaired spectrum; shared spectrum channel access; initial access; multiple access; random access; channel coding; generation, transmission, and reception of physical layer channels and signals (e.g., including determination of transmission bandwidth, transmission waveform, modulation scheme, subcarrier spacing, and cyclic prefix); transmission and reception based on unicast, groupcast, multicast, and broadcast; physical layer control information and signaling processes (e.g., including synchronization processes, scheduling mechanisms, and feedback mechanisms); frame structure; timing adjustment; and timing relationships. relationship); for example, transmit power control; for example, signal measurement; for example, higher-layer control information and signaling procedures; for example, resource allocation and management; for example, multi-carrier operation, including, for example, carrier aggregation and dual connectivity; for example, multi-antenna transmission and reception; for example, beam-based operation; for example, priority-based operation; for example, multi-point coordination; for example, relaying operation; for example, mobility management; for example, in-device coexistence; for example, inter-system interoperability and coexistence. Summary of the Invention

[0005] To address at least some of the above problems, the present disclosure provides a method performed by a user equipment and the user equipment, wherein, for operations with shared spectrum channel access, if the UE does not support PSFCH transmission in non-contiguous RB sets, then when determining the RB set for PSFCH transmission, a contiguous RB set of the RB set containing the PSFCH carrying HARQ-ACK information and having the smallest priority value is selected, and, when there is no PSFCH carrying HARQ-ACK information, a contiguous RB set of the RB set containing the PSFCH with the smallest priority value is selected. This ensures that PSFCH transmission carrying HARQ-ACK information always takes precedence over PSFCH transmission carrying conflicting information.

[0006] According to the present disclosure, a method performed by a user equipment is proposed, characterized by comprising: transmitting a PSFCH transmission opportunity PSFCH carrying HARQ-ACK information and From the PSFCHs carrying conflicting information, select part or all of the PSFCHs to form a first PSFCH subset; and determine a second PSFCH subset composed of part or all of the PSFCHs in the first PSFCH subset and the power of each PSFCH in the second PSFCH subset; and transmit the PSFCH in the second PSFCH subset according to the determined power; wherein, for operations with shared spectrum channel access, if the UE does not support PSFCH transmission in a non-continuous RB set, the RB set where the PSFCHs in the first PSFCH subset are respectively located is any one of the continuous RB sets selected by the UE that meets the following conditions: The continuous RB set contains at least one The PSFCH with the smallest priority value among the PSFCHs carrying HARQ-ACK information, and The continuous RB set contains at least one The PSFCH with the smallest priority value among the PSFCHs carrying conflicting information.

[0007] In addition, according to the present disclosure, a user equipment is proposed, including: a processor; and a memory storing instructions, wherein the instructions execute the above method when executed by the processor.

[0008] Therefore, the present disclosure provides a method in which, for operations with shared spectrum channel access, if the UE does not support PSFCH transmission in non-contiguous RB sets, when determining the RB set for PSFCH transmission, a contiguous RB set of the RB set containing the PSFCH carrying HARQ-ACK information and having the smallest priority value is selected, and, when there is no PSFCH carrying HARQ-ACK information, a contiguous RB set of the RB set containing the PSFCH having the smallest priority value is selected. This ensures that PSFCH transmission carrying HARQ-ACK information always takes precedence over PSFCH transmission carrying conflicting information. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and other features of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0010] FIG1 shows a flowchart corresponding to a method executed by a UE according to a first embodiment of the present disclosure.

[0011] FIG2 shows a block diagram of a UE involved in the present disclosure. DETAILED DESCRIPTION

[0012] 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.

[0013] The following describes multiple implementations of the present disclosure using the 5G wireless communication system specifications developed by 3GPP (3rd Generation Partnership Project) and its 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.

[0014] 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.

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

[0016] ●“Node” and “communication node” are interchangeable.

[0017] ●“Node” may refer to a UE, or a network node (such as a base station), or a communication node in another form.

[0018] ●“Base station” may refer to a base station of a 4G or evolved system, such as an eNB (E-UTRAN Node B, where E-UTRAN stands for Evolved Universal Terrestrial Radio Access Network); or, “base station” may refer to a base station of a 5G or evolved system, such as a gNB (a node that provides NR user plane and control plane protocol termination to the UE and is connected to the 5G core network through the NG interface), or 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, “base station” may refer to a base station defined in other ways.

[0019] ●“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., an access stratum protocol stack). For example, if the reference protocol layer or reference protocol sublayer is a physical layer (or referred to as “Layer 1”), the “higher layer” may include a MAC (Medium Access Control) layer, an RLC (Radio Link Control) layer, a PDCP (Packet Data Convergence Protocol) layer, a PC5-RRC (Radio Resource Control) layer, a PC5-S layer, and part or all of the RRC layer. Unless otherwise specified, the reference protocol layer or reference protocol sublayer may be a physical layer. Where there is no ambiguity, the “higher layer” may also be referred to as a “higher layer”.

[0020] ● "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 include part or all of the MAC layer and 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 may be the MAC layer. Where there is no ambiguity, the "lower layer" may also be referred to as the "lower layer."

[0021] ●“Carrier” can refer to a sidecarrier, an uplink carrier, or a downlink carrier.

[0022] ● "Bandwidth segment" can refer to a sidelink bandwidth segment, an upstream bandwidth segment, or a downstream bandwidth segment.

[0023] ● “Signaling” may refer to physical layer signaling, such as DCI (Downlink Control Information), UCI (Uplink Control Information), and SCI (Sidelink Control Information).

[0024] ● “Signaling” may refer to higher-layer signaling, such as MAC CE (Control Element).

[0025] ●A "parameter" can refer to a physical layer parameter or a higher layer parameter.

[0026] ●A "parameter" can refer to a predefined parameter. For example, the number of subcarriers in each RB Can be a predefined constant, such as

[0027] ●A "parameter" may refer to a "configured" parameter. For example, the configuration information corresponding to a "configured" parameter (e.g., the value of the parameter) may be provided by a protocol layer (e.g., the RRC layer) in a node to another protocol layer (e.g., the physical layer); for another example, the configuration information corresponding to a "configured" parameter (e.g., the value of the parameter) may be provided by a protocol layer (e.g., the RRC layer) in a node to a peer protocol layer in another node; for another example, the configuration information corresponding to a "configured" parameter (e.g., the value of the parameter) may be preset in a specific storage location in a node or other storage location accessible to the node. In this case, the parameter may also be referred to as a "pre-configured" parameter.

[0028] ● “Number” and “index” are interchangeable. For example, the number of a resource block (RB) can also be called the index of the RB; for example, “numbering an RB as 0” can also be expressed as “indexing an RB as 0.”

[0029] ●The elements in a set (or array, or list, or sequence, etc.) can correspond to indexes 0, 1, 2, ... in the order in which they appear, or 1, 2, 3, ... in the order in which they appear. For example, the set {t0, t1, ..., t N-1}, and t N-1 They may correspond to indexes 0, 1, ..., and N-1 respectively.

[0030] ● An element in a collection (or array, or list, or sequence, etc.) can be represented by its index. For example, a resource element (RE) with an index of 0 can be referred to as "RE 0".

[0031] ●The index corresponding to an object (e.g., a subcarrier, a time slot, a cyclic shift, etc.) (e.g., the index of the object in a set, an array, a list, or a sequence) can be used as the "identifier" (ID) of the object.

[0032] ●The index corresponding to an object can be used to indicate the object in signaling.

[0033] 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.

[0034] ●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.

[0035] NΔ(x1, x2) can represent the offset between x1 and x2 (or, "offset of x2 with respect to x1"; or, "offset from x1 to x2"), where x1 and x2 can be the values ​​of two comparable parameters (or variables), or can be two possible values ​​of a parameter (or variable). For example, if x1 and x2 are two time slots in a resource pool, Δ(x1, x2) can be defined as the difference between the time slot index corresponding to the time slot x2 and the time slot index corresponding to the time slot x1, where the time slot index can be a physical time slot index or a logical time slot index (for example, the index of the corresponding time slot in the time slot set of the resource pool).

[0036] ● A bit string (e.g., 'b0b1...b L-1 '), the leftmost bit (ie, b0) can correspond to the most significant bit, and accordingly, the rightmost bit (ie, b L-1 ) may correspond to the least significant bit.

[0037] ● A bit string of size (or "length") L bits (e.g., 'b0b1...b L-1 '), the leftmost bit (ie, b0) may correspond to the least significant bit, and accordingly, the rightmost bit (ie, b L-1 ) can correspond to the most significant bit.

[0038] A priority can be assigned a priority value. For example, one priority can be assigned a priority value of 1, while another priority can be assigned a priority value of 8.

[0039] The relationship between a priority and its corresponding priority value may be such that as the priority value increases, the priority decreases. For example, if a first side transmission and a second side transmission are associated with priority values ​​of 1 and 2, respectively, the priority of the first side transmission is higher than the priority of the second side transmission.

[0040] The relationship between a priority and its corresponding priority value may be such that as the priority value increases, the priority increases. For example, if a first side transmission and a second side transmission are associated with priority values ​​of 1 and 2, respectively, the priority of the first side transmission is lower than the priority of the second side transmission.

[0041] Δf may represent the subcarrier spacing (SCS) of a carrier or a bandwidth segment, for example, Δf = 15 kHz, Δf = 30 kHz, Δf = 60 kHz, or Δf = 120 kHz.

[0042] μ can represent the SCS configuration corresponding to an SCS. For example, μ = 0 corresponds to Δf = 15 kHz; μ = 1 corresponds to Δf = 30 kHz; μ = 2 corresponds to Δf = 60 kHz; and μ = 3 corresponds to Δf = 120 kHz.

[0043] ●Constant T c It can be defined as: c =1 / (Δf max ·N f ), where Δf max =480·10 3 Hz, N f =4096.

[0044] ●The constant k can be defined as: k = T s / T c =64, where T s =1 / (Δf ref ·N f,ref ), Δf ref =15·10 3 Hz, N f,ref =2048.

[0045] Modulo Operation can be defined as r≡a mod N, where

[0046] ■r is the remainder.

[0047] ■a=N×q+r,where q can be called the integer quotient of a and N.

[0048] ■0≤r<|N|.

[0049] 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.

[0050] In some aspects of the present disclosure, a resource may be identified, at least in part, by one or more parameters in the time domain. For example, the one or more parameters may include some or all of the following: a starting symbol for the resource, a starting time slot for the resource, a number of symbols occupied by the resource, and a number of time slots occupied by the resource.

[0051] In some aspects of the present disclosure, a resource may be identified, at least in part, by one or more parameters in the frequency domain. For example, the one or more parameters may include some or all of the following: a starting subchannel for the resource, a starting RB for the resource, a starting subcarrier for the resource, the number of subchannels occupied by the resource, the number of RBs occupied by the resource, and the number of subcarriers occupied by the resource.

[0052] In some aspects of the present disclosure, a resource may be at least partially identified by one or more parameters in the code domain. For example, the one or more parameters may include some or all of the following: a cyclic shift value or a corresponding cyclic shift index corresponding to the resource, and a cyclic shift pair value or a corresponding cyclic shift pair index corresponding to the resource.

[0053] In some aspects of the present disclosure, a resource may be identified, at least in part, by one or more parameters in the spatial domain. For example, the one or more parameters may include a layer to which the resource corresponds, where a "layer" may refer to one or more layers to which a TB (Transport Block) or its corresponding codeword is mapped in spatial multiplexing.

[0054] In some aspects of the present disclosure, “RB” may refer to a PRB (physical resource block), and accordingly, “RB index” may refer to a PRB index.

[0055] In some aspects of the present disclosure, “RB” may refer to a VRB (virtual resource block), and accordingly, “RB index” may refer to a VRB index.

[0056] In some aspects of the present disclosure, “RB” may refer to a CRB (common resource block), and accordingly, “RB index” may refer to a CRB index.

[0057] In some aspects of the present disclosure, “RB” may refer to an IRB (Interlaced Resource Block), and accordingly, “RB index” may refer to an IRB index.

[0058] In some aspects of the present disclosure, a "symbol" may refer to an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0059] In some aspects of the present disclosure, in the time domain, a "frame" (or "radio frame") may refer to a system frame (the corresponding frame number may be referred to as a system frame number, SFN) or a direct frame (the corresponding frame number may be referred to as a direct frame number, DFN). A frame period (e.g., denoted as T FNP ) may correspond to a predefined or configured parameter, or may be determined based on one or more predefined or configured parameters, for example, T FNP= 1024 frames. Accordingly, the 1024 frames in the frame period can be indexed as 0, 1, ..., 1023 in chronological order. The frame period based on the system frame can be called an "SFN cycle" (SFN cycle), and the frame period based on the direct frame can be called a "DFN cycle" (DFN cycle). The duration of each frame can be T f = 10 milliseconds, which can contain 10 subframes, where the duration of each subframe is T sf = 1 millisecond. Each subframe can contain time slots, for example, The index of a time slot in a subframe can be recorded as The index of a time slot in a frame can be recorded as in, Can be equal to 10·2 μ The time slot index in a frame period can be recorded as in Can be equal to (For example, 1024·(10·2 μ )).

[0060] In some aspects of the present disclosure, 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, ...

[0061] In some aspects of the present disclosure, a "transmission" may refer to an uplink transmission, or a downlink transmission, or a sidelink transmission.

[0062] In some aspects of the present disclosure, one "transmission" may correspond to a transmission on one physical channel. For example, the physical channel may be a PDCCH (Physical Downlink Control Channel), or a PDSCH (Physical Downlink Shared Channel), or a PRACH (Physical Random-Access Channel), or a PBCH (Physical Broadcast Channel), or a PUCCH (Physical Uplink Control Channel), or a PUSCH (Physical Uplink Shared Channel), or a PSCCH (Physical Sidelink Control Channel), or a PSSCH (Physical Sidelink Shared Channel), or a PSFCH (Physical Sidelink Feedback Channel), or a PSBCH (Physical Sidelink Broadcast Channel), or other physical channels.

[0063] In some aspects of the present disclosure, a "transmission" may correspond to the transmission of a physical signal. For example, the physical signal may be a PSS (Primary Synchronization Signal), or may be an SSS (Secondary Synchronization Signal), or may be a CSI-RS (Channel-State Information Reference Signal), or may be a DM-RS (Demodulation Reference Signal), or may be a PT-RS (Phase-tracking reference signals), or may be an SRS (Sounding Reference Signal), or may be a RIM-RS (Remote Interference Management Reference Signal), or may be an S-PSS (Sidelink primary synchronization signal), or may be an S-SSS (Sidelink secondary synchronization signal), or may be an SL PRS (Sidelink Positioning Reference Signal), or may be another physical signal.

[0064] In some aspects of the present disclosure, a "transmission" may correspond to the transmission of zero or one or more physical channels and zero or one or more physical signals multiplexed in the same resource (e.g., a time-frequency in a resource pool; or, for example, several RBs in a time slot). For example, an "SS / PBCH block" (or an "SSB") may consist of a PSS, an SSS, and a PBCH multiplexed in the same time slot; or, for example, an "S-SS / PSBCH block" (or an "S-SSB") may consist of an S-PSS, an S-SSS, and a PSBCH multiplexed in the same time slot; or, for example, a "PSCCH / PSSCH" (or a "PSSCH / PSCCH") may consist of a PSCCH and its associated PSSCH multiplexed in the same time slot.

[0065] In some aspects of the present disclosure, DCI carried in a downlink transmission (e.g., PDCCH) corresponding to a specific DCI format (e.g., denoted as DCI format X) may be referred to as "a DCI format X." For example, DCI carried in a PDCCH corresponding to DCI format 0_0 may be referred to as "a DCI format 0_0."

[0066] In some aspects of the present disclosure, when there is no risk of confusion, the name of a physical channel (or physical signal) used for transmission can be used to refer to the transmission of the physical channel (or physical signal). For example, "PSFCH" can mean "PSFCH transmission".

[0067] In some aspects of the present disclosure, when there is no risk of confusion, the name of a physical channel (or physical signal) used for reception may be used to represent the reception of the physical channel (or physical signal). For example, "PSFCH" may mean "PSFCH reception".

[0068] In some aspects of the present disclosure, "sideline" may refer to NR sideline. For example, a physical sideline channel or signal (e.g., PSSCH) may refer to a physical sideline channel or signal in NR (e.g., NR PSSCH).

[0069] In some aspects of the present disclosure, "sidelink" may refer to LTE sidelink. For example, a physical sidelink channel or signal (eg, PSSCH) may refer to a physical sidelink channel or signal in LTE (eg, LTE PSSCH).

[0070] In some aspects of the present disclosure, "sideline operation" may include, at least in part, some or all of sideline reception, sideline transmission, and sideline measurement.

[0071] In some aspects of the present disclosure, "sideline operation" may be used, at least in part, for some or all of the sideline functions including sideline communication, sideline discovery, and sideline positioning. For example, "sideline reception" may include reception for sideline communication; another example, "sideline transmission" may include transmission for sideline discovery; another example, "sideline measurement" may include measurement for sideline positioning.

[0072] In some aspects of the present disclosure, a "resource pool" may refer to a sideline resource pool.

[0073] In some aspects of the present disclosure, a “sidelink grant” may refer to a “sidelink dynamic grant”, or a “sidelink configured grant”, or another form of sidelink grant.

[0074] In some aspects of the present disclosure, a “sidelink configuration grant” may refer to a “type 1 sidelink configured grant”, or a “type 2 sidelink configured grant”, or another form of sidelink configuration grant.

[0075] In some aspects of the present disclosure, a “release” operation on a sidewalk configuration permission may also be referred to as a “deactivation” operation on the sidewalk configuration permission.

[0076] In some aspects of the present disclosure, "sidelink dynamic grant" and "dynamic sidelink grant" may be interchangeable.

[0077] In some aspects of the present disclosure, "sidelink configuration grant" and "configured sidelink grant" may be interchangeable.

[0078] In some aspects of the present disclosure, "type 1 sidelink configuration grant" and "sidelink configured grant type 1" may be interchangeable.

[0079] In some aspects of the present disclosure, "type 2 sidelink configuration grant" and "sidelink configured grant type 2" may be interchangeable.

[0080] In some aspects of the present disclosure, a “sidelink identity” (sidelink ID) may refer to a layer 1 sidelink identifier.

[0081] In some aspects of the present disclosure, a "sideline identifier" may refer to a layer 2 sideline identifier.

[0082] In some aspects of the present disclosure, a "sidelink identifier" can be used as a "destination identifier" (destination ID). 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 (for example, the destination identifier can be a source identifier of the intended receiving UE).

[0083] In some aspects of the present disclosure, a “sidelink identifier” may be used as a “source identifier” (source ID). For example, a source identifier indicated in a unicast (or multicast, or broadcast) transmission may be used to identify the UE performing the transmission.

[0084] In some aspects of the present disclosure, a "priority level" may be referred to as a "sidetrack priority level."

[0085] In some aspects of the present disclosure, a "sidelink resource" may refer to a resource that can be used for a sidelink transmission. For example, a sidelink resource may be a time-frequency resource corresponding to one or more consecutive symbols in a time slot in the time domain and one or more subchannels in the frequency domain.

[0086] In some aspects of the present disclosure, a "sideline timeslot" may refer to a timeslot that can be used for sideline transmission (or, sideline reception). For example, a sideline timeslot may be a timeslot that can be used for part or all of PSSCH, PSCCH, and PSFCH; for another example, a sideline timeslot may be a timeslot that can be used for part or all of PSSCH, PSCCH, PSFCH, and S-SSB.

[0087] In some aspects of the present disclosure, a “logical time slot” may refer to a time slot belonging to a resource pool.

[0088] In some aspects of the present disclosure, a “logical time slot” may refer to a time slot that may be configured to belong to a resource pool.

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

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

[0091] In some aspects of the present disclosure, SCI corresponding to a specific SCI format (e.g., denoted as SCI format X) carried in a sidelink transmission (e.g., PSCCH; or PSSCH; or PSCCH / PSSCH) may be referred to as "an SCI format X." For example, SCI corresponding to SCI format 1-A carried in a PSCCH may be referred to as "an SCI format 1-A"; and for another example, SCI corresponding to SCI format 2-A carried in a PSSCH may be referred to as "an SCI format 2-A."

[0092] In some aspects of the present disclosure, "SCI" ​​may refer to a first stage SCI (1 st -stage SCI) format, or a second-stage SCI (2 nd -stage SCI) format, or a first-stage SCI format and its associated second-stage SCI format.

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

[0094] A 5G-capable node may support "operation with shared spectrum channel access". For example, on an unlicensed spectrum, "operation with shared spectrum channel access" may include a "channel access procedure" performed on a "channel" or a "multi-channel access procedure" performed on multiple "channels", wherein each "channel" may contain several contiguous RBs, and the "channel access procedure" (or the "multi-channel access procedure") may be used to evaluate whether the corresponding one (or one or more) "channels" can be used to perform one or more transmissions. The result of a channel access procedure may be "success" (or referred to as "channel access success") or "failure" (or referred to as "channel access failure"). The operation of evaluating whether one (or one or more) "channels" can be used to perform one or more transmissions may be called CCA (Clear Channel Assessment). This mechanism of performing CCA before using one or more "channels" can be called LBT (Listen Before Talk). Accordingly, each "channel" can be called an "LBT channel." Accordingly, "channel access success" can be called "LBT success," and "channel access failure" can be called "LBT failure." Whether a node needs to perform CCA (or "whether LBT needs to be performed") and the specific CCA process may be related to the regulations of the country and / or region where the node is located.

[0095] A 5G-capable node may support "operation without shared spectrum channel access", for example, on the licensed spectrum, before using one or more "channels", the node may not perform the "channel access procedure" and the "multi-channel access procedure".

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

[0097] In some aspects of the present disclosure, operation on unlicensed spectrum may always be "operation with shared spectrum channel access."

[0098] In some aspects of the present disclosure, "operation with shared spectrum channel access" and "operation on unlicensed spectrum" may be interchangeable.

[0099] In some aspects of the present disclosure, "operation with shared spectrum channel access" may include operation on part or all of the sidelink, downlink, and uplink.

[0100] In some aspects of the present disclosure, "operation without shared spectrum channel access" may refer to operation on a licensed spectrum.

[0101] In some aspects of the present disclosure, operation on the licensed spectrum may always be "operation without shared spectrum channel access."

[0102] In some aspects of the present disclosure, "operation without shared spectrum channel access" and "operation on licensed spectrum" may be interchangeable.

[0103] In some aspects of the present disclosure, "operation without shared spectrum channel access" may include operation on part or all of the sidelink, downlink, and uplink.

[0104] For “operation with shared spectrum channel access”, a “channel” can be referred to as a “shared spectrum channel” and vice versa.

[0105] A "channel" can correspond to a carrier (e.g., c0) or a portion of the carrier c0. For example, if the bandwidth of carrier c0 is 20 MHz, then one "channel" can correspond to the carrier c0. For another example, if the bandwidth of carrier c0 is 40 MHz, then one "channel" can correspond to the lower-frequency 20 MHz of carrier c0, and another "channel" can correspond to the remaining (i.e., higher-frequency) 20 MHz of carrier c0.

[0106] More generally, the carrier c0 may include "channels" (e.g. continuous "channels"), for example, they are recorded in order from low to high frequency as as well as The corresponding set of "channels" can be recorded as in, can be an integer greater than or equal to 1. On the other hand, the carrier c0 can include RB Set (e.g. continuous RB sets), for example, they are recorded in order from low to high frequency as as well as The corresponding RB set can be recorded as Among them, each RB set can be composed of several consecutive RBs; Can be an integer greater than or equal to 1; RB set The lowest index CRB, the highest index CRB and the number of RBs can be recorded as in Can be equal to

[0107] There may be a guard band (e.g., called an intra-cell guard band) between two adjacent RB sets, where each intra-cell guard band may consist of several consecutive RBs (each such RB may be called a guard band RB). For example, there may be is used to separate the The protection bands within the cell of RB sets are, for example, recorded as as well as The corresponding guard band set in the cell can be recorded as Among them, for i∈ Can be used to separate RB sets and RB set The lowest index CRB, the highest index CRB and the number of RBs can be recorded as in Can be equal to Specifically, for example, the bandwidth of the carrier c0 is 40 MHz. Accordingly, for a 15 kHz SCS, the carrier c0 may include 216 consecutive RBs (for example, their CRB indices are 0, 1, ..., and 215 respectively), and the 216 RBs may be divided into three parts: a first RB set (in ), a protection zone within a cell (in ), and a second RB set (in ).

[0108] right like is an empty set, then it can be considered that the corresponding cell guard band does not exist, and vice versa. If both are empty sets, it can be considered that there is no intra-cell guard band between any two adjacent RB sets of the carrier c0.

[0109] In some aspects of the present disclosure, each RB set may uniquely correspond to a "channel" and vice versa. Can be equal to the And right RB set Can correspond to "channel" Several consecutive RBs within the bandwidth.

[0110] In sidelink operation, the control information that a PSFCH may carry (or "indicate" or "provide") may be one of the following:

[0111] HARQ-ACK (Hybrid automatic repeat request acknowledgement) information.

[0112] ●Conflict information.

[0113] For example, a UE (e.g., UE-A) may transmit a PSFCH carrying HARQ-ACK information based on an indication of an SCI format 1-A received by another UE (e.g., UE-B) that schedules a PSSCH reception, wherein the PSFCH may be a response to the PSSCH reception, and accordingly, the UE-B may determine the content of the HARQ-ACK information by receiving the PSFCH. For example, the value of the HARQ-ACK information may be "ACK" for indicating a positive acknowledgement, or "NACK" for indicating a negative acknowledgement. The SCI format 1-A may be referred to as the SCI format associated with the PSFCH transmission (or, the corresponding PSFCH reception).

[0114] For example, a first UE can determine, based on one or more conditions and / or criteria, that a resource conflict has occurred in one of the one or more resources (for example, denoted as R0) reserved for PSSCH transmission in a first SCI format 1-A received by it and transmitted by a second UE, and accordingly transmit a PSFCH carrying conflict information. Specifically, for example, the resource conflict may be caused by the overlap (for example, overlap on one or more REs) of one or more resources reserved for PSSCH transmission in a second SCI format 1-A transmitted by a third UE (for example, denoted as R1) and the resource R0. In this case, for the PSFCH transmission of the first UE, the first SCI format 1-A and the second SCI format 1-A may be referred to as the SCI formats corresponding to the corresponding conflicting resource(s), such as the resource R0 and the resource R1; where applicable, for the PSFCH reception of the second UE, the first SCI format 1-A may be referred to as the SCI format corresponding to the conflicting resource R0; where applicable, for the PSFCH reception of the third UE, the second SCI format 1-A may be referred to as the SCI format corresponding to the conflicting resource R1.

[0115] In some aspects of the present disclosure, a PSFCH carrying HARQ-ACK information may be referred to as a "PSFCH with HARQ-ACK information," and a PSFCH carrying conflict information may be referred to as a "PSFCH with conflict information."

[0116] A PSFCH transmission or reception may be performed in a PSFCH occasion in the time domain. A PSFCH occasion may correspond to a symbol or several consecutive symbols in a time slot.

[0117] A PSFCH opportunity corresponding to a PSFCH transmission may be referred to as a PSFCH transmission opportunity. When there is no risk of confusion, a PSFCH transmission opportunity may be referred to simply as a PSFCH opportunity.

[0118] A PSFCH opportunity corresponding to a PSFCH reception may also be referred to as a "PSFCH reception opportunity." When there is no risk of confusion, a PSFCH reception opportunity may be simply referred to as a PSFCH opportunity.

[0119] A PSFCH transmission (or, PSFCH reception) may have a corresponding priority value. For example, for a PSFCH carrying HARQ-ACK information, the priority value of the corresponding PSFCH transmission (or, PSFCH reception) may be equal to the priority value indicated in the SCI format 1-A associated with the PSFCH transmission (or, PSFCH reception); for another example, for a PSFCH carrying conflicting information, the priority value of the corresponding PSFCH transmission may be equal to the minimum value of the priority values ​​indicated in the SCI format 1-A corresponding to the corresponding conflicting resource(s); for another example, for a PSFCH carrying conflicting information, the priority value of the corresponding PSFCH reception may be equal to the priority value indicated in the SCI format 1-A corresponding to the corresponding conflicting resource(s).

[0120] For PSFCH transmission (or PSFCH reception), the priority value range may be a predefined or configured set of integers, for example, {1, 2, ..., 8}.

[0121] For PSFCH transmissions (or PSFCH receptions), the priority may decrease as the priority value increases. For example, a PSFCH transmission carrying HARQ-ACK information with a priority value of "1" may have a higher priority than a PSFCH transmission carrying HARQ-ACK information with a priority value of "2." For another example, a PSFCH transmission carrying collision information with a priority value of "1" may have a higher priority than a PSFCH transmission carrying collision information with a priority value of "2."

[0122] For PSFCH transmission (or, for PSFCH reception), the priority of a PSFCH carrying HARQ-ACK information can always be higher than the priority of a PSFCH carrying conflicting information. For example, a PSFCH transmission carrying HARQ-ACK information with a maximum priority value (e.g., "8") can have a higher priority than a PSFCH transmission carrying conflicting information with a minimum priority value (e.g., "1"); for another example, a PSFCH transmission carrying HARQ-ACK information with a priority value of "6" (e.g., denoted as ), a PSFCH transmission with a priority value of "8" carrying HARQ-ACK information (e.g., ), a PSFCH transmission with a priority value of "3" carrying conflict information (e.g., ), and a PSFCH transmission with a priority value of "7" carrying conflict information (e.g., ) in descending order of priority: as well as

[0123] In some aspects of the present disclosure, due to half-duplex limitations, a UE may not be able to perform PSFCH transmission and PSFCH reception simultaneously in one PSFCH opportunity. In this case, if there is both a PSFCH to be transmitted and a PSFCH to be received in one PSFCH opportunity, the UE can determine whether to perform PSFCH transmission or PSFCH reception in the PSFCH opportunity based on a certain priority order.

[0124] The priority value indicated in an SCI format 1-A may be indicated by a "Priority" field in the SCI format 1-A. For example, the "Priority" field may be a 3-bit field, a value of "000" in the "Priority" field may correspond to a priority value of "1," a value of "001" in the "Priority" field may correspond to a priority value of "2," and so on.

[0125] In some aspects of the present disclosure, the "corresponding RB set" of a PSFCH may refer to the RB set in which the PSFCH resides. Accordingly, the PSFCH may be referred to as the "PSFCH contained within" the RB set (or a set of RB sets in which the RB set resides). This may apply, for example, to operations with shared spectrum channel access (or unlicensed spectrum).

[0126] Example 1

[0127] The method executed by the UE according to the first embodiment of the present disclosure is described below with reference to FIG. 1 .

[0128] FIG1 shows a flowchart corresponding to a method executed by a UE according to a first embodiment of the present disclosure.

[0129] As shown in FIG1 , in the first embodiment of the present disclosure, the steps performed by the UE include: step S101 and step S103 .

[0130] Specifically, in step S101, one or more operations related to PSFCH prioritization are performed, wherein each of the operations may be based at least in part on zero or one or more conditions, zero or one or more criteria, zero or one or more parameters, and zero or one or more indications related to PSFCH prioritization, and the "PSFCH priority" may include the priority of PSFCH transmission and / or PSFCH reception.

[0131] For example, the one or more operations related to PSFCH prioritization may at least partially include one or more of the following, wherein the corresponding execution order may be any possible order where applicable:

[0132] ● Determine a PSFCH transmission opportunity (e.g., ) in a "first PSFCH transmission set" (e.g., ).

[0133] When applicable (e.g., for operations with shared spectrum channel access; or for unlicensed spectrum), determine a "first transmission RB set" (e.g., ). For example, the set Can be applied to the PSFCH transmission timing PSFCH transmission(s) in.

[0134] ● Determine the PSFCH transmission timing The "scheduled PSFCH transmission(s)" in (for example, the corresponding PSFCH set is ).

[0135] ● Determine the PSFCH transmission timing "simultaneous PSFCH transmission(s)" in (for example, the corresponding PSFCH set is ).

[0136] ●Determine the set The transmission power (or simply "power") of the PSFCH (PSFCH(s)) in the .

[0137] ● Determine a PSFCH reception opportunity (e.g., ) in a "first PSFCH reception set" (e.g., denoted as ).

[0138] ●Determine whether to perform PSFCH transmission or PSFCH reception.

[0139] In some aspects of the present disclosure, for operations with and without shared spectrum channel access, the set The collection The collection The collection The collection The transmission power of the PSFCH (PSFCH (s)) in the The manner in which some or all of may be determined may be different.

[0140] In some aspects of the present disclosure, for operations with and without shared spectrum channel access, the set The collection The collection The collection The collection The transmission power of the PSFCH (PSFCH (s)) in the The manner of determining part or all of may be the same.

[0141] In some aspects of the present disclosure, for both licensed and unlicensed spectrum, the set The collection The collection The collection The collection The transmission power of the PSFCH (PSFCH (s)) in the The manner in which some or all of may be determined may be different.

[0142] In some aspects of the present disclosure, for both licensed and unlicensed spectrum, the set The collection The collection The collection The collection The transmission power of the PSFCH (PSFCH (s)) in the The manner of determining part or all of may be the same.

[0143] The collection It can be that the UE is transmitting at the PSFCH transmission timing All PSFCHs to be transmitted in as well as ), that is, in,

[0144] ● It can be that the UE is transmitting at the PSFCH transmission timing The number of PSFCHs to be transmitted in .

[0145] ●The collection can be a non-empty set, accordingly, the Can be an integer greater than or equal to 1.

[0146] ●The collection Can be an empty set, accordingly, the Can be equal to 0.

[0147] Yes The priority value can be recorded as as well as The minimum value in can be recorded as right There can be one or more values ​​of i such that equal

[0148] ●In some aspects of the present disclosure, the set The PSFCH (PSFCH(s)) in the sidelink may be located in one or more sidelink resource pools. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in a sidelink bandwidth segment (e.g., denoted as b0) in a sidelink carrier (e.g., denoted as c0), for example, the one or more sidelink resource pools may be part or all of the sidelink bandwidth segments in the sidelink bandwidth segment b0. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in multiple sidelink bandwidth segments of a sidelink carrier (e.g., the sidelink carrier c0). In some aspects of the present disclosure, the one or more sidelink resource pools may be located in each of the sidelink bandwidth segments of multiple sidelink carriers. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in each of the one or more sidelink bandwidth segments of multiple sidelink carriers.

[0149] In some aspects of the present disclosure, the set It can be the set For example, due to some UE capability limitations, the UE may not be able to transmit the set In this case, the set The set may be determined according to a certain priority order and may satisfy the UE capability limitation. A subset of .

[0150] In some aspects of the present disclosure, the set It can be the set For example, due to the limitation of the maximum output power and / or the maximum number of PSFCH transmissions that the UE can support, the UE may not be able to transmit the set In this case, the set The set may be determined according to a certain priority order, may meet the maximum output power and / or maximum PSFCH transmission number limit, A subset of .

[0151] In some aspects of the present disclosure, the set It can be the set For example, due to the maximum output power, the maximum number of PSFCH transmissions that the UE can support, and some or all of the limitations of other UE capabilities, the UE may not be able to transmit the set In this case, the set The set may be determined according to a certain priority order, may meet the maximum output power and / or maximum PSFCH transmission number limit, A subset of .

[0152] The collection It can be that the UE receives the PSFCH at the time All PSFCHs to be received in as well as ), that is, in,

[0153] ● The UE receives the PSFCH at the The number of PSFCHs to be received in .

[0154] ●The collection can be a non-empty set, accordingly, the Can be an integer greater than or equal to 1.

[0155] ●The collection Can be an empty set, accordingly, the Can be equal to 0.

[0156] Yes The priority value can be recorded as as well as The minimum value in can be recorded as right There can be one or more values ​​of i such that equal

[0157] ●In some aspects of the present disclosure, the set The PSFCH (PSFCH(s)) in the sidelink may be located in one or more sidelink resource pools. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in a sidelink bandwidth segment (e.g., the sidelink bandwidth segment b0) in a sidelink carrier (e.g., the sidelink carrier c0), for example, the one or more sidelink resource pools may be part or all of the sidelink bandwidth segments in the sidelink bandwidth segment b0. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in multiple sidelink bandwidth segments of a sidelink carrier (e.g., the sidelink carrier c0). In some aspects of the present disclosure, the one or more sidelink resource pools may be located in each of the sidelink bandwidth segments of multiple sidelink carriers. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in each of the one or more sidelink bandwidth segments of multiple sidelink carriers.

[0158] In some aspects of the present disclosure, the set PSFCH (PSFCH (s)) and the set The PSFCH (PSFCH(s)) in the PSFCH can overlap in time. For example, the PSFCH transmission timing and the PSFCH reception timing It can be the same PSFCH opportunity (for example, ).

[0159] In some aspects of the present disclosure, the UE may determine whether to perform PSFCH transmission or PSFCH reception based at least in part on zero or one or more conditions, zero or one or more criteria, zero or one or more parameters, and zero or one or more indications related to prioritization (e.g., this applies to the set PSFCH (PSFCH (s)) and the set Specifically, for example, if the PSFCH in the set (PSFCH(s)) overlaps in time. All PSFCH and the set The PSFCH with the highest priority among all PSFCHs is located in the set Then it is determined to perform PSFCH transmission. All PSFCH and the set The PSFCH with the highest priority among all PSFCHs is located in the set It is determined to perform PSFCH reception.

[0160] In some aspects of the present disclosure, the UE first determines whether to perform PSFCH transmission or PSFCH reception, and then determines the set The collection The collection The collection The collection The transmission power of the PSFCH (PSFCH (s)) in the For example, after the UE determines to perform PSFCH transmission (rather than PSFCH reception), it determines the set

[0161] In some aspects of the present disclosure, the UE first determines the set The collection The collection The collection The collection The transmission power of the PSFCH (PSFCH (s)) in the part or all of the data, and then determine whether to perform PSFCH transmission or PSFCH reception.

[0162] The collection As stated in A PSFCH can be PSFCH carrying HARQ-ACK information and PSFCHs carrying conflicting information are composed of

[0163] ● Can be equal to

[0164] ● Can be an integer greater than or equal to 0.

[0165] ● Can be less than or equal to An integer.

[0166] ● Can be an integer greater than or equal to 0.

[0167] ● Can be less than or equal to An integer.

[0168] ● The set of PSFCHs carrying HARQ-ACK information can be recorded as in, (ie the set is an empty set) can correspond to situation.

[0169] ●As mentioned The minimum priority value of the PSFCHs carrying HARQ-ACK information can be recorded as For example, the The definition can be applied to situation.

[0170] ● The set of PSFCHs carrying conflicting information can be recorded as in, (ie the set is an empty set) can correspond to situation.

[0171] ●As mentioned The minimum priority value of the PSFCHs carrying conflicting information can be recorded as For example, the The definition can be applied to situation.

[0172] described Can be equal to the and stated The smaller of

[0173] In some aspects of the present disclosure, when applicable (e.g., for operations with shared spectrum channel access; for example, for unlicensed spectrum), And i≠j, and The respective RB sets may be the same RB set, or may be different RB sets.

[0174] The collection It can be the set As stated in The set of RB sets where the PSFCHs are located (for example, ) is a subset of .

[0175] In some aspects of the present disclosure, the set The RB Set(s) in the sidelink resource pool may be located in one or more sidelink resource pools. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in a sidelink bandwidth segment (e.g., the sidelink bandwidth segment b0) in a sidelink carrier (e.g., the sidelink carrier c0), for example, the one or more sidelink resource pools may be part or all of the sidelink bandwidth segments in the sidelink bandwidth segment b0. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in multiple sidelink bandwidth segments of a sidelink carrier (e.g., the sidelink carrier c0). In some aspects of the present disclosure, the one or more sidelink resource pools may be located in each of the sidelink bandwidth segments of multiple sidelink carriers. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in each of the one or more sidelink bandwidth segments of multiple sidelink carriers.

[0176] The collection It can be composed of a contiguous RB Set(s). For example, the set It may be composed of RB sets with indices of 0, 1, 2, and 3 in the sideband bandwidth segment b0. It may consist of the RB set with index 0 in the sidelink bandwidth segment b0.

[0177] The collection It can be composed of non-contiguous RB Sets. For example, the set It may consist of RB sets with indices of 0, 1, and 3 in the sidelink bandwidth segment b0.

[0178] In some aspects of the present disclosure, a set of non-contiguous RB sets (e.g., RSS nx ) is a subset of a continuous set of RBs (e.g., ) can be called the collection RSS nx A continuous subset of; In some aspects of the present disclosure, if the set Add a collection After any element in , a set consisting of non-continuous RB sets will be obtained, then the set The collection may be referred to as RSS nx For example, if the set The RB sets with indices of 0, 1, and 3 in the sideband bandwidth segment b0 are composed of (for example, ), then the set There are four consecutive subsets, namely {0}, {1}, {0, 1}, and {3}, where {0, 1} and {3} are the sets The largest contiguous subset of .

[0179] In some aspects of the present disclosure, for operation without shared spectrum channel access (or for licensed spectrum), the set It can be the set

[0180] In some aspects of the present disclosure, for operation without shared spectrum channel access (or for licensed spectrum), the set It can be the set

[0181] In some aspects of the present disclosure, for operation with shared spectrum channel access (or for unlicensed spectrum), if the UE supports PSFCH transmission in a non-contiguous RB set, the set It can be the set

[0182] In some aspects of the present disclosure, for operation with shared spectrum channel access (or for unlicensed spectrum), if the UE supports PSFCH transmission in a non-contiguous RB set, the set It can be the set

[0183] In some aspects of the present disclosure, for operations with shared spectrum channel access (or for unlicensed spectrum), if the type 0 sideline transmission conditions are met, the set It can be the set

[0184] In some aspects of the present disclosure, for operations with shared spectrum channel access (or for unlicensed spectrum), if the type 0 sideline transmission condition is met, the set It can be the set

[0185] The type 0 sideline transmission condition may at least partially include one or more of the following (for example, any combination in an "AND" or "OR" manner):

[0186] The UE is to perform PSFCH transmission (eg, the UE has determined to perform PSFCH transmission rather than PSFCH reception).

[0187] • The UE does not support PSFCH transmission in non-contiguous RB sets.

[0188] ●The collection Consists of a continuous set of RBs.

[0189] In some aspects of the present disclosure, for operations with shared spectrum channel access (or for unlicensed spectrum), if the type 1 sideline transmission condition is met, the set It may be one (for example, any one) RB set selected by the UE that meets the type 1 frequency domain resource selection condition.

[0190] The type 1 sideline transmission condition may at least partially include one or more of the following (for example, any combination in an "and" or "or" manner):

[0191] The UE is to perform PSFCH transmission (eg, the UE has determined to perform PSFCH transmission rather than PSFCH reception).

[0192] • The UE does not support PSFCH transmission in non-contiguous RB sets.

[0193] ●The collection Consists of non-contiguous RB sets.

[0194] ●The collection It consists of consecutive RB sets or non-consecutive RB sets.

[0195] ● Greater than 0.

[0196] ● Greater than or equal to 1.

[0197] ●The collection There is at least one PSFCH carrying HARQ-ACK information.

[0198] ●The collection There is at least one PSFCH carrying HARQ-ACK information.

[0199] ●The collection There is at least one PSFCH carrying HARQ-ACK information, or the set There is at least one PSFCH carrying HARQ-ACK information.

[0200] ●The collection and the collection There is at least one PSFCH carrying HARQ-ACK information.

[0201] The type 1 frequency domain resource selection condition may at least partially include one or more of the following (for example, any combination in an “and” or “or” manner):

[0202] ●Type 1a frequency domain resource selection conditions.

[0203] ●Type 1b frequency domain resource selection conditions.

[0204] For example, the type 1 frequency domain resource selection condition is met when and only when both the type 1a frequency domain resource selection condition and the type 1b frequency domain resource selection condition are met; for another example, the type 1 frequency domain resource selection condition is met when and only when part or all of the type 1a frequency domain resource selection condition and the type 1b frequency domain resource selection condition are met.

[0205] Aggregate RSS for a RB set x The type 1a frequency domain resource selection condition may at least partially include one or more of the following (for example, in any combination of “and” or “or”):

[0206] ●The collection RSS x is the set A subset of .

[0207] ●The collection RSS x is the set A continuous subset of .

[0208] ●The collection RSS x is the set A maximal contiguous subset of .

[0209] ●The collection RSS x Consists of a continuous set of RBs.

[0210] Aggregate RSS for a RB set x The type 1b frequency domain resource selection condition may at least partially include one or more of the following (for example, in any combination of "and" or "or"):

[0211] ●The collection RSS x The RB Set(s) in A priority value equal to the PSFCH.

[0212] ●The collection RSS x The RB Set(s) in One or more priority values ​​are equal to the PSFCH.

[0213] ●The collection RSS x The RB Set(s) in the RB Set(s) contains at least the set A priority value equal to the PSFCH.

[0214] ●The collection RSS x The RB Set(s) in A priority value equal to the PSFCH.

[0215] ●The collection RSS x The RB Set(s) in One or more priority values ​​are equal to the PSFCH.

[0216] ●The collection RSS x The RB Set(s) in the RB Set(s) contains at least the set A priority value equal to the PSFCH.

[0217] In some aspects of the present disclosure, for operations with shared spectrum channel access (or for unlicensed spectrum), if the type 2 sideline transmission conditions are met, the set It may be one (for example, any one) RB set selected by the UE that meets the type 2 frequency domain resource selection condition.

[0218] The type 2 sideline transmission condition may at least partially include one or more of the following (for example, any combination in an "AND" or "OR" manner):

[0219] The UE is to perform PSFCH transmission (eg, the UE has determined to perform PSFCH transmission rather than PSFCH reception).

[0220] • The UE does not support PSFCH transmission in non-contiguous RB sets.

[0221] ● Equal to 0.

[0222] ● Greater than 0.

[0223] ● Greater than or equal to 1.

[0224] ●The collection There is no PSFCH carrying HARQ-ACK information.

[0225] ●The collection There is no PSFCH carrying HARQ-ACK information.

[0226] ●The collection There is no PSFCH carrying HARQ-ACK information, or the set There is no PSFCH carrying HARQ-ACK information.

[0227] ●The collection and the collection There is no PSFCH carrying HARQ-ACK information.

[0228] The type 2 frequency domain resource selection condition may at least partially include one or more of the following (for example, any combination in an “and” or “or” manner):

[0229] ●Type 2a frequency domain resource selection conditions.

[0230] ●Type 2b frequency domain resource selection conditions.

[0231] For example, the type 2 frequency domain resource selection condition is met when and only when both the type 2a frequency domain resource selection condition and the type 2b frequency domain resource selection condition are met; for another example, the type 2 frequency domain resource selection condition is met when and only when part or all of the type 2a frequency domain resource selection condition and the type 2b frequency domain resource selection condition are met.

[0232] Aggregate RSS for a RB set x The type 2a frequency domain resource selection condition may at least partially include one or more of the following (for example, in any combination of “and” or “or”):

[0233] ●The collection RSS x is the set A subset of .

[0234] ●The collection RSS x is the set A continuous subset of .

[0235] ●The collection RSS x is the set A maximal contiguous subset of .

[0236] ●The collection RSS x Consists of a continuous set of RBs.

[0237] Aggregate RSS for a RB set x The type 2b frequency domain resource selection condition may at least partially include one or more of the following (for example, in any combination of “and” or “or”):

[0238] ●The collection RSS x The RB Set(s) in A priority value equal to the PSFCH.

[0239] ●The collection RSS x The RB Set(s) in One or more priority values ​​are equal to the PSFCH.

[0240] ●The collection RSS x The RB Set(s) in the RB Set(s) contains at least the set A priority value equal to the PSFCH.

[0241] ●The collection RSS x The RB Set(s) in A priority value equal to the PSFCH.

[0242] ●The collection RSS x The RB Set(s) in One or more priority values ​​are equal to the PSFCH.

[0243] ●The collection RSS x The RB Set(s) in the RB Set(s) contains at least the set A priority value equal to the PSFCH.

[0244] ●The collection RSS x The RB Set(s) in A priority value equal to the PSFCH.

[0245] ●The collection RSS x The RB Set(s) in One or more priority values ​​are equal to the PSFCH.

[0246] ●The collection RSS x The RB Set(s) in the RB Set(s) contains at least the set A priority value equal to the PSFCH.

[0247] In some aspects of the present disclosure, the set Can be in the collection In the set, and the corresponding RB set is in the set The set of all PSFCHs in ) is a subset of .

[0248] In some aspects of the present disclosure, the set It can be the set A subset of .

[0249] In some aspects of the present disclosure, the set It can be the set

[0250] In some aspects of the present disclosure, the set It can be the set

[0251] In some aspects of the present disclosure, for operations with shared spectrum channel access (or for unlicensed spectrum), if the type 1 sideline transmission condition is met, the set It can be the set

[0252] In some aspects of the present disclosure, for operations with shared spectrum channel access (or for unlicensed spectrum), if the type 2 sideline transmission conditions are met, the set It can be the set

[0253] In some aspects of the present disclosure, for operations with shared spectrum channel access (or for unlicensed spectrum), if the type 1 sideline transmission condition or the type 2 sideline transmission condition is met, the set It can be the set

[0254] In some aspects of the present disclosure, the set The number of PSFCHs in ) and / or the collection The power of each PSFCH in the set may be based at least in part on the The collection The collection The collection P CMAX as well as Part or all of which are determined

[0255] ● Can be an integer greater than or equal to 1.

[0256] ●The P CMAX It can be a maximum output power. The restrictions may include: The sum of the powers of the PSFCH transmissions must be less than or equal to the P CMAX In some aspects of the present disclosure, the P CMAX can be based at least in part on the Sure.

[0257] ● It can be the maximum number of PSFCHs that the UE is capable of transmitting in one PSFCH transmission opportunity. The restrictions may include: Must be less than or equal to the

[0258] Specifically, for example, the UE may determine the power that can be allocated to each PSFCH transmission, the P CMAX The corresponding maximum output power limit, and the The corresponding maximum PSFCH transmission number limit is part or all of the set (Or, the set Alternatively, the set ) used to form the set PSFCH, and determine the The transmission power of each of the PSFCHs.

[0259] In some aspects of the present disclosure, the set As stated in PSFCHs for simultaneous transmission may be the set (Or, the set Alternatively, the set ) The highest priority PSFCH.

[0260] In some aspects of the present disclosure, the Can be greater than the or equal to the or less than the

[0261] Furthermore, in step S103 , PSFCH transmission or reception is performed.

[0262] For example, if it has been determined in step S101 that PSFCH transmission (rather than PSFCH reception) is to be performed, PSFCH transmission is performed. Specifically, for example, the set Some or all of the PSFCHs in the Only part of the PSFCH corresponding to the channel access may be successful, and accordingly, only this part of the PSFCH is transmitted); for example, the transmission of the set Some or all of the PSFCHs in the Only some of the PSFCHs may have successful channel access, and accordingly, only this part of the PSFCH is transmitted).

[0263] For example, if it has been determined in step S101 that PSFCH reception (rather than PSFCH transmission) is to be performed, PSFCH reception is performed. Specifically, for example, the set Part or all of the PSFCH.

[0264] The first embodiment of the present disclosure may be applicable to operations without shared spectrum channel access.

[0265] The first embodiment of the present disclosure may be applicable to authorized spectrum.

[0266] The first embodiment of the present disclosure may be applicable to operations with shared spectrum channel access.

[0267] Embodiment 1 of the present disclosure may be applicable to unlicensed spectrum.

[0268] The first embodiment of the present disclosure may be executed by the physical layer protocol of the UE.

[0269] The first embodiment of the present disclosure may be executed by a higher layer protocol of the UE.

[0270] In the first embodiment of the present disclosure, the “performing PSFCH transmission” may refer to the UE transmitting at the PSFCH transmission timing. PSFCH transmission is performed in.

[0271] In the first embodiment of the present disclosure, the “perform PSFCH reception” may refer to the UE receiving the PSFCH at the PSFCH reception timing. PSFCH reception is performed in.

[0272] In the first embodiment of the present disclosure, the “continuous RB set” may refer to a continuous RB set in a sidelink resource pool.

[0273] In embodiment 1 of the present disclosure, the "contiguous RB set" may refer to a continuous RB set in one or more sidelink resource pools. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in a sidelink bandwidth segment (e.g., the sidelink bandwidth segment b0) in a sidelink carrier (e.g., the sidelink carrier c0), for example, the one or more sidelink resource pools may be part or all of the sidelink bandwidth segments in the sidelink bandwidth segment b0. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in multiple sidelink bandwidth segments of a sidelink carrier (e.g., the sidelink carrier c0). In some aspects of the present disclosure, the one or more sidelink resource pools may be located in each of the sidelink bandwidth segments of multiple sidelink carriers. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in each of the one or more sidelink bandwidth segments of multiple sidelink carriers.

[0274] In the first embodiment of the present disclosure, the “non-contiguous RB set” may refer to a non-contiguous RB set in a sidelink resource pool.

[0275] In embodiment 1 of the present disclosure, the "non-contiguous RB set" may refer to a non-contiguous RB set in one or more sidelink resource pools. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in a sidelink bandwidth segment (e.g., the sidelink bandwidth segment b0) in a sidelink carrier (e.g., the sidelink carrier c0), for example, the one or more sidelink resource pools may be part or all of the sidelink bandwidth segments in the sidelink bandwidth segment b0. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in multiple sidelink bandwidth segments of a sidelink carrier (e.g., the sidelink carrier c0). In some aspects of the present disclosure, the one or more sidelink resource pools may be located in each of the sidelink bandwidth segments of multiple sidelink carriers. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in each of the one or more sidelink bandwidth segments of multiple sidelink carriers.

[0276] Thus, according to the first embodiment, the present disclosure provides a method, wherein, for operations with shared spectrum channel access, if the UE does not support PSFCH transmission in non-contiguous RB sets, then when determining the RB set for PSFCH transmission, a contiguous RB set of the RB set containing the PSFCH carrying HARQ-ACK information and having the smallest priority value is selected, and, when there is no PSFCH carrying HARQ-ACK information, a contiguous RB set of the RB set containing the PSFCH having the smallest priority value is selected. This ensures that PSFCH transmission carrying HARQ-ACK information always takes precedence over PSFCH transmission carrying conflicting information.

[0277] Modification

[0278] 2 is used to illustrate a user equipment as a modified example that can execute the method executed by the user equipment described in detail above in the present disclosure.

[0279] FIG2 is a block diagram showing a user equipment involved in the present disclosure.

[0280] As shown in Figure 2, the user equipment UE20 includes a processor 201 and a memory 202. The processor 201 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The memory 202 may include, for example, a volatile memory (such as a random access memory (RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory. The memory 202 stores program instructions. When executed by the processor 201, the instructions may execute the above-mentioned method performed by the user equipment as described in detail in this disclosure.

[0281] The methods and devices involved in the present disclosure have been described above in conjunction with preferred embodiments. Those skilled in the art will appreciate that the methods shown above are merely exemplary and that the various embodiments described above can be combined with one another without conflict. The methods of the present disclosure are not limited to the steps and sequence shown above. The network nodes and user equipment shown above may include more modules, such as modules that can be developed or developed in the future and can be used for base stations, AMFs (Access and Mobility Management Functions), UPFs (User Plane Functions), MMEs (Mobility Management Entities), S-GWs (Serving Gateways), or UEs. The various identifiers shown 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 many changes and modifications.

[0282] 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, such as merging constant terms, exchanging two additive terms, exchanging two multiplication terms, changing the sign of a term and moving it from the left side of the equation or inequality to the right side, changing the sign of a term and moving it from the right side of the equation or inequality to the left side, etc.; the mathematical expressions, mathematical equations, or mathematical inequalities before and after simplification, transformation, or rewriting can be considered equivalent.

[0283] 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 base station and 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.

[0284] 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.

[0285] 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 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.

[0286] In addition, each functional module or each feature of the base station equipment and terminal equipment used in each of the above embodiments can be implemented or executed by a circuit, and the circuit is generally one or more integrated circuits. The circuit designed to perform the various functions described in this specification may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC) or a general-purpose integrated circuit, a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, or a discrete hardware component, or any combination of the above devices. The general-purpose processor may be a microprocessor, or the processor may be an existing processor, a controller, a microcontroller or a state machine. The 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, an advanced technology that can replace current integrated circuits emerges, the present disclosure may also use the integrated circuit obtained using the advanced technology.

[0287] 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: For a PSFCH opportunity PSFCHs to be transmitted and PSFCH to be received, for an operation with shared spectrum channel access, if the UE determines to perform PSFCH transmission, and the UE does not support PSFCH transmission in a non-contiguous RB set, and the PSFCH to be transmitted and the None of the PSFCHs to be received carries any PSFCH with HARQ-ACK information, so Among the RB sets where the PSFCHs to be transmitted are located, any continuous RB set containing the PSFCH with the smallest priority value is selected for PSFCH transmission.

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

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