Method executed by user equipment and user equipment

Abstract

The invention provides a method executed by user equipment and the user equipment. The method executed by the user equipment comprises the following steps: selecting part or all of the PSFCHs from # imgabs 0 # PSFCHs carrying HARQ-ACK information and # imgabs 1 # PSFCHs carrying conflict information to be transmitted in a PSFCH transmission opportunity, so as to form a first PSFCH subset, wherein the # imgabs 0 # PSFCHs carrying HARQ-ACK information and the # imgabs 1 # PSFCHs carrying conflict information are transmitted in the PSFCH transmission opportunity; determining a second PSFCH subset formed by a part of or all of the PSFCHs in the first PSFCH subset, and determining the power of each PSFCH in the second PSFCH subset; and, according to the determined power, transmitting the PSFCH in the second PSFCH subset.

Description

Technical Field

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

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

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

[0004] To support various services in a wireless communication system, including, for example, some or all of communication, positioning, and ranging, a series of problems need to be solved. For example, operations on licensed spectrum and unlicensed spectrum; operations on paired spectrum 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., determination of transmission bandwidth, transmission waveform, modulation method, subcarrier spacing, and cyclic prefix); transmission and reception based on unicast, multicast, broadcast; physical layer control information and signaling procedures (e.g., synchronization procedures, scheduling mechanisms, and feedback mechanisms, etc.); frame structure; timing adjustment; timing relationship; transmission power control; signal measurement; higher layer control information and signaling procedures; resource allocation and management; multi-carrier operations, such as carrier aggregation and dual connectivity; multi-antenna transmission and reception; beam-based operations; priority-based operations; multi-point cooperation; relaying operations; mobility management; in-device coexistence; inter-system interoperability and coexistence. Summary of the Invention

[0005] To solve at least some of the above problems, the present disclosure provides a method performed by a user equipment and a user equipment. For operations with shared spectrum channel access, if the UE does not support PSFCH transmission in a discontinuous RB set, when determining the RB set for PSFCH transmission, a continuous RB set of the RB set where the PSFCH carrying HARQ-ACK information and having the smallest priority value is located is selected, and when there is no PSFCH carrying HARQ-ACK information, a continuous RB set of the RB set where the PSFCH having the smallest priority value is located is selected. This ensures that PSFCH transmission carrying HARQ-ACK information is always prioritized over PSFCH transmission carrying collision information.

[0006] According to the present disclosure, a method performed by a user equipment is provided, which includes: selecting some or all of the Physical Shared Feedback Channel (PSFCH) to form a first PSFCH subset among the PSFCH carrying Hybrid Automatic Repeat reQuest - Acknowledgement (HARQ - ACK) information and the PSFCH carrying conflict information to be transmitted in a PSFCH transmission occasion; and determining a second PSFCH subset composed of some or all of the PSFCH in the first PSFCH subset and the power of each PSFCH in the second PSFCH subset; and transmitting the PSFCH in the second PSFCH subset according to the determined power; wherein, for the operation of accessing a shared spectrum channel, if the UE does not support PSFCH transmission in a discontinuous Resource Block (RB) set, the RB sets where the PSFCH in the first PSFCH subset are located respectively are any one continuous RB set selected by the UE that satisfies the following conditions: Among the PSFCH carrying HARQ - ACK information and Among the PSFCH carrying conflict information, The continuous RB set contains at least one PSFCH with the smallest priority value among the PSFCH carrying HARQ - ACK information, and The continuous RB set contains at least one PSFCH with the smallest priority value among the PSFCH carrying conflict information.

[0007] In addition, according to the present disclosure, a user equipment is provided, including: a processor; and a memory storing instructions, wherein the instructions, when run by the processor, perform the above - mentioned method.

[0008] Therefore, the present disclosure provides a method, wherein for the operation of accessing a shared spectrum channel, if the UE does not support PSFCH transmission in a discontinuous RB set, when determining the RB set for PSFCH transmission, a continuous RB set including the RB set where the PSFCH carrying HARQ - ACK information and having the smallest priority value is located is selected, and when there is no PSFCH carrying HARQ - ACK information, a continuous RB set including the RB set where the PSFCH having the smallest priority value is located is selected. This ensures that the transmission of the PSFCH carrying HARQ - ACK information is always prior to the transmission of the PSFCH carrying conflict information. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Through the following detailed description in conjunction with the drawings, the above - mentioned and other features of the present disclosure will become more obvious, where:

[0010] Figure 1 The flowchart corresponding to the method performed by the UE according to Embodiment 1 of the present disclosure is shown.

[0011] Figure 2 FIG. 2 shows a block diagram of a UE involved in the present disclosure. DETAILED DESCRIPTION

[0012] The present disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the present disclosure should not be limited to the specific embodiments described below. In addition, for the sake of simplicity, the detailed description of well-known technologies that have no direct relation to the present disclosure is omitted to prevent confusion in the understanding of the present disclosure.

[0013] In the following, the 5G wireless communication system specifications developed by 3GPP (3rd Generation Partnership Project) and its subsequent evolved versions (e.g., 5G Advanced) are taken as an example application environment, and multiple embodiments according to the present disclosure are specifically described. However, it should be noted that the present disclosure is not limited to the following embodiments, but is applicable to more other wireless communication systems, such as wireless communication systems after 5G, or 4G mobile communication systems before 5G, such as LTE (Long Term Evolution), LTE-Advanced, LTE-Advanced Pro, etc.

[0014] The terms given in the present disclosure may adopt different naming methods in different wireless communication systems, but the present disclosure adopts unified terms, which can be replaced by the terms adopted in the corresponding systems when applied to specific systems.

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

[0016] ● "Node" and "communication node" can be interchanged.

[0017] ● "Node" may refer to a UE, or a network node (e.g., a base station), or a communication node in other forms.

[0018] ● "Base station" can refer to a base station of a 4G or its evolved system, such as an eNB (E-UTRAN Node B, where E-UTRAN stands for Evolved Universal Terrestrial Radio Access Network, the evolved unified terrestrial radio access network); or, "base station" can refer to a base station of a 5G or its evolved system, such as a gNB (a node that provides NR user plane and control plane protocol terminations 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 terminations 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" can refer to a base station defined in other ways.

[0019] ● "Higher layer(s)" (or "upper layer(s)") can refer to one or more protocol layers or protocol sub-layers above a reference protocol layer or reference protocol sub-layer in a specific protocol stack (such as an access stratum protocol stack). For example, if the reference protocol layer or reference protocol sub-layer is the physical layer (or "Layer 1"), then "higher layer" can include the MAC (Medium Access Control) layer, RLC (Radio Link Control protocol) layer, PDCP (Packet Data Convergence Protocol) layer, PC5-RRC (Radio Resource Control) layer, PC5-S layer, and part or all of the RRC layer. Unless otherwise specified, the reference protocol layer or reference protocol sub-layer can be the physical layer. Without causing ambiguity, "higher layer" can also be referred to as "high layer".

[0020] ● "Lower layer(s)" can refer to one or more protocol layers or protocol sub - layers below a reference protocol layer or reference protocol sub - layer in a specific protocol stack. For example, if the reference protocol layer or reference protocol sub - layer is the RRC layer, the "lower layer" can include part or all of the MAC layer and the physical layer; another example is that if the reference protocol layer or reference protocol sub - layer is the MAC layer, the "lower layer" can refer to the physical layer. Unless otherwise specified, the reference protocol layer or reference protocol sub - layer can be the MAC layer. Without causing ambiguity, the "lower layer" can also be referred to as the "low layer".

[0021] ● "Carrier" can refer to a sidelink carrier, or an uplink carrier, or a downlink carrier.

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

[0023] ● "Signaling" can refer to physical layer signaling, such as DCI (Downlink Control Information), or UCI (Uplink Control Information), or SCI (Sidelink Control Information).

[0024] ● "Signaling" can 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 sub - carriers in each RB ( ) can be a predefined constant, such as

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

[0028] ● "Number" and "index" can be interchanged. For example, the number of an RB (resource block) can also be referred to as the index of the RB; or, "number an RB as 0" can also be expressed as "index an RB as 0".

[0029] ● The elements in a set (or array, or list, or sequence, etc.) can correspond to indices 0, 1, 2,... in the order they appear, or correspond to indices 1, 2, 3,... in turn. For example, the elements t0, t1,..., t N-1} in the set can correspond to indices 0, 1,..., and N - 1 respectively. N-1 ● The elements in a set (or array, or list, or sequence, etc.) can be represented by their indices. For example, a RE (Resource Element) with an index of 0 can be called "RE 0".

[0030] ● The index corresponding to an object (such as a subcarrier, a time slot, a cyclic shift, etc.) (e.g., the index of the object in a set, or an array, or a list, or a sequence) can be used as the "identifier" (ID) of the object.

[0031] ● The index corresponding to an object can be used to indicate the object in signaling.

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

[0033] ● If the quantity of an object is not specified when referring to the object, the quantity of the object can be one, or can be multiple. For example, in "performing a transmission on a channel", the "transmission(s)" can correspond to one transmission, or multiple transmissions.

[0034] ● A time series (e.g., denoted as t0, t1,..., t N-1 ) or each element in a corresponding set (e.g., denoted as {t0, t1,..., t N-1}) can appear in chronological order. For example, the time corresponding to t0 is earlier than (or, not later than) the time corresponding to t1, the time corresponding to t1 is earlier than (or, not later than) the time corresponding to t2, and so on.

[0035] ● Δ(x1, x2) can represent the offset between x1 and x2 (or, "the offset of x2 with respect to x1", or, "the offset from x1 to x2"), where x1 and x2 can be the values of two comparable parameters (or variables) respectively, 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 time slot x2 and the time slot index corresponding to time slot x1, where the time slot index can be a physical time slot index, or a logical time slot index (e.g., the index of the corresponding time slot in the set of time slots of the resource pool).

[0036] ● In a bit string of size (or referred to as "length") L bits (e.g., denoted as 'b0b1…b L-1 '), the leftmost bit (i.e., b0) can correspond to the most significant bit, and correspondingly, the rightmost bit (i.e., b L-1 ) can correspond to the least significant bit.

[0037] ● In a bit string of size (or referred to as "length") L bits (e.g., denoted as 'b0b1…b L-1 '), the leftmost bit (i.e., b0) can correspond to the least significant bit, and correspondingly, the rightmost bit (i.e., b L-1 ) can correspond to the most significant bit.

[0038] ● A priority can correspond to a priority value. For example, the priority value corresponding to one priority is 1, and the priority value corresponding to another priority is 8.

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

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

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

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

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

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

[0045] ● The 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 referred to as the integer quotient of a and N.

[0048] ■ 0 ≤ r < |N|.

[0049] ● The round operation can be denoted 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 defined as the smaller of the two integers.

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

[0051] In some aspects of the present disclosure, a resource can be at least partially identified by one or more parameters in the frequency-domain. For example, the one or more parameters can include some or all of the following: the starting sub-channel of the resource, the starting RB of the resource, the starting sub-carrier of the resource, the number of sub-channels occupied by the resource, the number of RBs occupied by the resource, and the number of sub-carriers occupied by the resource.

[0052] In some aspects of the present disclosure, a resource can be at least partially identified by one or more parameters in the code-domain. For example, the one or more parameters can include some or all of the following: the cyclic shift value or the corresponding cyclic shift index corresponding to the resource, and the cyclic shift pair value or the 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 the layer corresponding to the resource, where a "layer" may refer to one of the 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 correspondingly, "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 correspondingly, "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 correspondingly, "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 correspondingly, "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 (and the corresponding frame number may be referred to as a system frame number, SFN), or a direct frame (and the corresponding frame number may be referred to as a direct frame number, DFN). A frame period (denoted, for example, as T FNP ) may correspond to a predefined or configured parameter, or may be determined according to one or more predefined or configured parameters. For example, T FNP= 1024 frames. Correspondingly, the 1024 frames within the frame period can be sequentially indexed as 0, 1, ……, 1023 in chronological order. The frame period based on the system frame can be referred to as the "SFN cycle", and the frame period based on the direct frame can be referred to as the "DFN cycle". The duration of each frame can be T f = 10 milliseconds, which can contain 10 sub - frames, where the duration of each sub - frame is T sf = 1 millisecond. Each sub - frame can contain time slots. For example, the index of a time slot within a sub - frame can be denoted as the index of a time slot within a frame can be denoted as wherein, can be equal to 10·2 μ . The time - slot index within a frame period can be denoted as wherein can be equal to (for example, 1024·(10·2 μ ))

[0060] In some aspects of the present disclosure, a "physical time slot" can refer to a time slot belonging to a certain set of physical time slots, where the set of physical time slots can be all the time slots within a continuous period of time (for example, a frame period with a duration of 1024 frames); the physical time slots within the set of physical time slots can be sequentially indexed as 0, 1, ……

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

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

[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, CSI 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 (for example, a time-frequency in a resource pool; or several RBs in a time slot). For example, an "SS / PBCH block" (or referred to as an "SSB") may be composed of a PSS, an SSS, and a PBCH multiplexed in the same time slot; or, an "S-SS / PSBCH block" (or referred to as an "S-SSB") may be composed of an S-PSS, an S-SSS, and a PSBCH multiplexed in the same time slot; or, a "PSCCH / PSSCH" (or referred to as a "PSSCH / PSCCH") may be composed 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 00 may be referred to as "a DCI format 00".

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

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

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

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

[0072] In some aspects of the present disclosure, "resource pool" may refer to a sidelink 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 configured grant" may refer to a "type 1 sidelink configured grant", or a "type 2 sidelink configured grant", or another form of sidelink configured grant.

[0075] In some aspects of the present disclosure, the "release" operation of a sidelink configured grant may also be referred to as the "deactivation" operation of the sidelink configured grant.

[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 configured grant" and "configured sidelink grant" may be interchangeable.

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

[0079] In some aspects of the present disclosure, "type 2 sidelink configured 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 identity.

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

[0082] In some aspects of the present disclosure, a "sidelink identifier" can be used as a "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 an intended receiving UE of the unicast transmission (e.g., the destination identifier can be a source identifier of the intended receiving UE).

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

[0084] In some aspects of the present disclosure, a "priority" can refer to a "sidelink priority".

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

[0086] In some aspects of the present disclosure, a "sidelink time slot" can refer to a time slot that can be used for sidelink transmission (or sidelink reception). For example, a sidelink time slot can be a time slot that can be used for part or all of PSSCH, PSCCH, and PSFCH; for another example, a sidelink time slot can be a time slot 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" can refer to a time slot belonging to a certain resource pool.

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

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

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

[0091] In some aspects of the present disclosure, an SCI carried in a sidelink transmission (e.g., PSCCH; e.g., PSSCH; e.g., PSCCH / PSSCH) and corresponding to a specific SCI format (e.g., denoted as SCI format X) may be referred to as "an SCI format X". For example, an SCI carried in a PSCCH and corresponding to SCI format 1-A may be referred to as "an SCI format 1-A"; for another example, an SCI carried in a PSSCH and corresponding to SCI format 2-A 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 licensed spectrum, such as band n78 (3300 MHz - 3800 MHz), or in unlicensed spectrum, such as band n46 (5150 MHz - 5925 MHz).

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

[0095] A 5G-enabled node can support "operation without shared spectrum channel access". For example, in 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" can refer to an operation in unlicensed spectrum.

[0097] In some aspects of the present disclosure, an operation in unlicensed spectrum can 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 operations on some or all of sidelink, downlink, and uplink.

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

[0101] In some aspects of the present disclosure, operation on 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 operations on some or all of sidelink, downlink, and uplink.

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

[0105] A "channel" may correspond to a carrier (e.g., denoted as c0), or a part of the carrier c0. For example, if the bandwidth of the carrier c0 is 20 MHz, correspondingly, a "channel" may correspond to the carrier c0; or if the bandwidth of the carrier c0 is 40 MHz, correspondingly, a "channel" may correspond to the lower 20 MHz of the carrier c0, and another "channel" may correspond to the remaining (i.e., the higher) 20 MHz of the carrier c0.

[0106] More generally, the carrier c0 may contain "channels" (e.g., consecutive "channels"), which may be denoted as, for example, in ascending order of frequency , ……, and The corresponding set of "channels" may be denoted as where may be an integer greater than or equal to 1. On the other hand, the carrier c0 may contain "RB sets" (RB Set) (e.g., consecutive RB sets), which may be denoted as, for example, in ascending order of frequency , ……, and The corresponding set of RB sets may be denoted as where each RB set may consist of several consecutive RBs; can be an integer greater than or equal to 1; for the RB set the lowest-indexed CRB, the highest-indexed CRB, and the number of RBs of the wherein can be equal to

[0107] There can be a guard band (e.g., called "intra-cell guard band") between two adjacent RB sets. Each intra-cell guard band can be composed of several consecutive RBs (each such RB can be called a "guard-band RB"). For example, there can be intra-cell guard bands for separating the RB sets, which are respectively denoted as , ……, and The corresponding intra-cell guard band set can be denoted as wherein, for can be used to separate RB set and RB set the lowest-indexed CRB, the highest-indexed CRB, and the number of RBs of which can be respectively denoted as wherein can be equal to Specifically, for example, the bandwidth of the carrier c0 is 40 MHz. Correspondingly, for 15 kHz SCS, the carrier c0 can include 216 consecutive RBs (e.g., their CRB indices are respectively denoted as 0, 1, ……, and 215), and the 216 RBs can be divided into three parts: a first RB set (where ), an intra-cell guard band (where ), and a second RB set (where ).

[0108] For If is an empty set, it can be considered that the corresponding intra-cell guard band does not exist, and vice versa. If for i = 0, 1, ……, and are all 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 can uniquely correspond to a "channel", and vice versa. For example, the may be equal to the and for RB set may correspond to several consecutive RBs within the bandwidth of the "channel" .

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

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

[0112] ● Conflict information.

[0113] For example, a UE (e.g., called UE-A) may transmit a PSFCH carrying HARQ-ACK information based on the indication of SCI format 1-A received for a PSSCH scheduled by another UE (e.g., called UE-B). Among them, the PSFCH may be a response to the reception of the PSSCH. Correspondingly, 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 positive acknowledgement or "NACK" for negative acknowledgement. The SCI format 1-A may be called the SCI format associated with the PSFCH transmission (or, the corresponding PSFCH reception).

[0114] For another example, a first UE may determine that there is a resource conflict in one of the one or more resources reserved for PSSCH transmission in a first SCI format 1-A received from a second UE according to one or more conditions and / or criteria (e.g., denoted as R0), and accordingly transmit a PSFCH carrying conflict information. Specifically, for example, the resource conflict may be caused by an overlap (e.g., an overlap on one or more REs) between one of the one or more resources reserved for PSSCH transmission in a second SCI format 1-A transmitted by a third UE (e.g., 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 respectively corresponding to the corresponding conflicting resources (e.g., the resource R0 and the resource R1); in applicable cases, 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; in applicable cases, 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 one symbol or several consecutive symbols in a time slot.

[0117] The PSFCH occasion corresponding to a PSFCH transmission may be referred to as a PSFCH transmission occasion. When there is no risk of confusion, a PSFCH transmission occasion may be abbreviated as a PSFCH occasion.

[0118] The PSFCH occasion corresponding to a PSFCH reception may be further referred to as a "PSFCH reception occasion". When there is no risk of confusion, a PSFCH reception occasion may be abbreviated as a PSFCH occasion.

[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); another example, for a PSFCH carrying conflict information, the priority value of the corresponding PSFCH transmission may be equal to the minimum of the priority values indicated in the SCI format 1-A corresponding to the respective conflicting resource(s); another example, for a PSFCH carrying conflict 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 respective conflicting resource.

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

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

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

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

[0124] A 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 field with a size of 3 bits, and the value "000" of the "priority" field may correspond to the priority value "1", the value "001" of the "priority" field may correspond to the priority value "2", and so on.

[0125] In some aspects of the present disclosure, a "corresponding RB set" of a PSFCH may refer to the RB set where the PSFCH is located. Correspondingly, the PSFCH may be referred to as the PSFCH "contained in" the RB set (or, a set of RB sets where the RB set is located). For example, this may apply to operations with shared spectrum channel access (or, unlicensed spectrum).

[0126] Embodiment 1

[0127] The following combines Figure 1 to illustrate the method performed by a UE in Embodiment 1 of the present disclosure.

[0128] Figure 1 A flowchart corresponding to the method performed by a UE according to Embodiment 1 of the present disclosure is shown.

[0129] As Figure 1 shown, in Embodiment 1 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, where each of the operations may be at least partially based 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. The "PSFCH prioritization" may include the prioritization of PSFCH transmission and / or PSFCH reception.

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

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

[0133] ● When applicable (e.g., for operations with shared spectrum channel access; or for unlicensed spectrum), determine a "first set of transmission RBs" (e.g., denoted as ). For example, the set may be applicable to PSFCH transmission(s) in the PSFCH transmission opportunity .

[0134] ● Determine the "scheduled PSFCH transmission(s)" (e.g., denoting the corresponding PSFCH set as ) in the PSFCH transmission opportunity .

[0135] ● Determine the "simultaneous PSFCH transmission(s)" (e.g., denoting the corresponding PSFCH set as ) in the PSFCH transmission opportunity .

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

[0137] ● Determine a "first PSFCH reception set" (e.g., denoted as ) in a PSFCH reception opportunity (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 shared spectrum channel access and operations without shared spectrum channel access, the set the set the set the set the set The transmission power of the PSFCH (PSFCH(s)) therein, and the determination method for some or all of the set can be different.

[0140] In some aspects of the present disclosure, for operations with shared spectrum channel access and operations without shared spectrum channel access, the set the set the set the set the set The transmission power of the PSFCH (PSFCH(s)) therein, and the determination method for some or all of the set can be the same.

[0141] In some aspects of the present disclosure, for licensed spectrum and unlicensed spectrum, the set the set the set the set the set The transmission power of the PSFCH (PSFCH(s)) therein, and the determination method for some or all of the set can be different.

[0142] In some aspects of the present disclosure, for licensed spectrum and unlicensed spectrum, the set the set the set the set the set The transmission power of the PSFCH (PSFCH(s)) therein, and the determination method for some or all of the set can be the same.

[0143] the set can be all the PSFCHs to be transmitted by the UE in the PSFCH transmission occasion For example, respectively denoted as , ……, and ), that is Wherein

[0144] ● The can be the number of PSFCHs to be transmitted by the UE in the PSFCH transmission occasion

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

[0146] ​● The set may be an empty set, and correspondingly, the may be equal to 0.

[0147] ● For pf i TX，F the priority value can be denoted as pr i Tx，F . , ……, and the minimum value among can be denoted as For there can be one or more values of i such that pr i TX，F is equal to

[0148] ● In some aspects of the present disclosure, the PSFCH (PSFCH(s)) in the set 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 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 respective one 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 respective one or more sidelink bandwidth segments of multiple sidelink carriers.

[0149] In some aspects of the present disclosure, the set may be a subset of the set . For example, due to limitations of certain UE capabilities, the UE may not be able to transmit all PSFCHs in the set . In this case, the set may be a subset of the set that is determined according to a certain priority order and can meet the UE capability limitations.

[0150] In some aspects of the present disclosure, the set may be a subset of the set . For example, due to limitations 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 all PSFCHs in 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 the 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 the 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 pf i RX，F The priority value can be recorded as pr i RX,F . ,……,as well as The minimum value in can be written as right There can be one or more values ​​of i such that pr i RX,F equal

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

[0158] In some aspects of the present disclosure, the PSFCH(PSFCH(s)) in the set and the PSFCH(PSFCH(s)) in the set may overlap in time. For example, the PSFCH transmission occasion and the PSFCH reception occasion may be the same PSFCH occasion (such as denoted as ).

[0159] In some aspects of the present disclosure, the UE may determine whether to perform PSFCH transmission or PSFCH reception at least partially according to 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 the priority order (for example, this applies to the case where the PSFCH(PSFCH(s)) in the set and the PSFCH(PSFCH(s)) in the set overlap in time). Specifically, for example, if the PSFCH with the highest priority among all the PSFCHs in the set and all the PSFCHs in the set is located in the set , it is determined to perform PSFCH transmission. Another example is that if the PSFCH with the highest priority among all the PSFCHs in the set and all the PSFCHs in the set 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 a PSFCH transmission or a PSFCH reception, and then determines the set the set the set the set the set the transmission power of the PSFCH(PSFCH(s)) in the set, and part or all of the set For example, after the UE determines to perform a PSFCH transmission (instead of a PSFCH reception), it determines the set

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

[0162] the set the PSFCH in the set can be composed of PSFCH(s) carrying HARQ-ACK information and PSFCH(s) carrying collision information, where

[0163] ● the can be equal to

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

[0165] ● the can be an integer less than or equal to

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

[0167] ● the can be an integer less than or equal to

[0168] ● the set composed of the PSFCH(s) carrying HARQ-ACK information can be denoted as where (i.e., the set ​​is an empty set) can correspond to cases.

[0169] ● Among the respective priority values of the PSFCHs carrying HARQ-ACK information, the minimum value can be denoted as For example, the definition of the can be applicable to cases.

[0170] ● The set composed of the PSFCHs carrying collision information can be denoted as wherein, (that is, the set is an empty set) can correspond to cases.

[0171] ● Among the respective priority values of the PSFCHs carrying collision information, the minimum value can be denoted as For example, the definition of the can be applicable to cases.

[0172] The can be equal to the smaller one of the and the .

[0173] In some aspects of the present disclosure, when applicable (for example, for operations with shared spectrum channel access; or for unlicensed spectrum), for and i≠j, pf i TX,F and pf j TX,F The RB sets where they are located respectively can be the same RB set, or can be different RB sets.

[0174] The set can be a subset of the set composed of the RB sets where the in the PSFCHs are located respectively (for example, denoted as ).

[0175] In some aspects of the present disclosure, the set The RB set(s) in it can be located in one or more sidelink resource pools. In some aspects of the present disclosure, the one or more sidelink resource pools can be located in one sidelink bandwidth segment (such as the sidelink bandwidth segment b0) in one sidelink carrier (such as the sidelink carrier c0). For example, the one or more sidelink resource pools can be part or all of the sidelink bandwidth segment in the sidelink bandwidth segment b0. In some aspects of the present disclosure, the one or more sidelink resource pools can be located in multiple sidelink bandwidth segments of one sidelink carrier (such as the sidelink carrier c0). In some aspects of the present disclosure, the one or more sidelink resource pools can be located in respective one sidelink bandwidth segment of multiple sidelink carriers. In some aspects of the present disclosure, the one or more sidelink resource pools can be located in respective one or more sidelink bandwidth segments of multiple sidelink carriers.

[0176] The set can be composed of contiguous RB Set(s). For example, the set can be composed of RB sets with indexes 0, 1, 2, and 3 respectively in the sidelink bandwidth segment b0. Another example, the set can be composed of the RB set with index 0 in the sidelink bandwidth segment b0.

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

[0178] In some aspects of the present disclosure, a subset (such as denoted as nx ) composed of contiguous RB sets of a set (such as denoted as RSS ) can be called a contiguous subset of the set RSS nx ; In some aspects of the present disclosure, if adding any element in the set will result in a set composed of non - contiguous RB sets, then the set can be called a maximum contiguous subset (or called "maximum possible contiguous subset") of the set RSS . For example, if the set nx is composed of RB sets with indexes 0, 1, and 3 respectively in the sidelink bandwidth segment b0 (such as denoted as ), then the set ) There are four consecutive subsets, namely {0}, {1}, {0, 1}, and {3}, where {0, 1} and {3} are the largest consecutive subsets of the set.

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

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

[0181] In some aspects of the present disclosure, for operations with shared spectrum channel access (or, for unlicensed spectrum), if the UE supports PSFCH transmission in a discontinuous RB set, the set may be the set

[0182] In some aspects of the present disclosure, for operations with shared spectrum channel access (or, for unlicensed spectrum), if the UE supports PSFCH transmission in a discontinuous RB set, the set may 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 sidelink transmission condition is satisfied, the set may 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 sidelink transmission condition is satisfied, the set may be the set

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

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

[0187] ● The UE does not support PSFCH transmission in a discontinuous RB set.

[0188] ● The set Composed of consecutive RB sets.

[0189] In some aspects of the present disclosure, for operations with shared spectrum channel access (or, for unlicensed spectrum), if the type 1 sidelink transmission conditions are met, then the set Can be a set of RB sets (e.g., any one) selected by the UE that meets the type 1 frequency domain resource selection conditions.

[0190] The type 1 sidelink transmission conditions can at least partially include one or more of the following (e.g., in any combination in an "AND" or "OR" manner):

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

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

[0193] ● The set Is composed of non - consecutive RB sets.

[0194] ● The set Is composed of consecutive RB sets or non - consecutive RB sets.

[0195] ● The Is greater than 0.

[0196] ● The Is greater than or equal to 1.

[0197] ● The set Contains at least one PSFCH carrying HARQ - ACK information.

[0198] ● The set Contains at least one PSFCH carrying HARQ - ACK information.

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

[0200] ● The set And the set Contains at least one PSFCH carrying HARQ - ACK information.

[0201] The type 1 frequency domain resource selection conditions can at least partially include one or more of the following (e.g., in any combination in an "AND" or "OR" manner):

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

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

[0204] For example, the Type 1 frequency domain resource selection condition is satisfied if and only if both the Type 1a frequency domain resource selection condition and the Type 1b frequency domain resource selection condition are satisfied; or, the Type 1 frequency domain resource selection condition is satisfied if and only if some or all of the Type 1a frequency domain resource selection condition and the Type 1b frequency domain resource selection condition are satisfied.

[0205] For an RB set collection RSS x , the Type 1a frequency domain resource selection condition may at least partially include one or more of the following (for example, any combination in the form of "AND" or "OR"):

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

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

[0208] ● The collection RSS x is a maximum continuous subset of the collection .

[0209] ● The collection RSS x is composed of continuous RB sets.

[0210] For an RB set collection RSS x , the Type 1b frequency domain resource selection condition may at least partially include one or more of the following (for example, any combination in the form of "AND" or "OR"):

[0211] ● The RB Set(s) in the collection RSS x contains a PSFCH with a priority value equal to that of the collection . ● The RB Set(s) in the collection RSS x contains one or more PSFCHs with priority values equal to that of the collection x

[0212] . ● The RB Set(s) in the collection RSS x

[0213] ​The RB set(s) in shall contain at least one priority value equal to the PSFCH of

[0214] ● The set RSS x The RB set(s) in shall contain one priority value equal to the PSFCH of

[0215] ● The set RSS x The RB set(s) in shall contain one or more priority values equal to the PSFCH of

[0216] ● The set RSS x The RB set(s) in shall contain at least one priority value equal to the PSFCH of

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

[0218] The type 2 sidelink transmission conditions may at least partially include one or more of the following (e.g., any combination in an "AND" or "OR" manner):

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

[0220] ● The UE does not support PSFCH transmission in discontinuous RB sets.

[0221] ● The is equal to 0.

[0222] ● The is greater than 0.

[0223] ● The is greater than or equal to 1.

[0224] ● The set does not have any PSFCH carrying HARQ-ACK information.

[0225] ● None of the PSFCHs in the set carry HARQ-ACK information.

[0226] ● None of the PSFCHs in the set carry HARQ-ACK information, or none of the PSFCHs in the set carry HARQ-ACK information.

[0227] ● None of the PSFCHs in the set and the set carry HARQ-ACK information.

[0228] The type 2 frequency-domain resource selection condition may at least partially include one or more of the following (e.g., any combination in an "AND" or "OR" manner):

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

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

[0231] For example, the type 2 frequency-domain resource selection condition is satisfied if and only if both the type 2a frequency-domain resource selection condition and the type 2b frequency-domain resource selection condition are satisfied; or, the type 2 frequency-domain resource selection condition is satisfied if and only if some or all of the type 2a frequency-domain resource selection condition and the type 2b frequency-domain resource selection condition are satisfied.

[0232] For a set of RBs RSS x , the type 2a frequency-domain resource selection condition may at least partially include one or more of the following (e.g., any combination in an "AND" or "OR" manner):

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

[0234] ● The set RSS x is a consecutive subset of the set .

[0235] ● The set RSS x is a maximum consecutive subset of the set .

[0236] ● The set RSS x is composed of consecutive RBs.

[0237] For a set of RBs RSS x, the type 2b frequency domain resource selection condition may at least partially include one or more of the following (e.g., any combination in the form of "AND" or "OR"):

[0238] ● One of the RB Set(s) in the set RSS x contains a priority value equal to the PSFCH of .

[0239] ● One or more of the RB Set(s) in the set RSS x contains a priority value equal to the PSFCH of .

[0240] ● At least one of the RB Set(s) in the set RSS x contains a priority value equal to the PSFCH of .

[0241] ● One of the RB Set(s) in the set RSS x contains a priority value equal to the PSFCH of .

[0242] ● One or more of the RB Set(s) in the set RSS x contains a priority value equal to the PSFCH of .

[0243] ● At least one of the RB Set(s) in the set RSS x contains a priority value equal to the PSFCH of .

[0244] ● One of the RB Set(s) in the set RSS x contains a priority value equal to the PSFCH of .

[0245] ● One or more of the RB Set(s) in the set RSS x contains a priority value equal to the PSFCH of .

[0246] ● The set RSS x The RB set(s) in it contains at least one of the sets with a priority value equal to the PSFCH.

[0247] In some aspects of the present disclosure, the set can be in the set and the corresponding RB set is in the set All PSFCHs in it form a set (e.g., denoted as ) and is a subset.

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

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

[0250] In some aspects of the present disclosure, the set 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 sidelink transmission conditions are met, then the set 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 sidelink transmission conditions are met, then the set 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 sidelink transmission conditions or the type 2 sidelink transmission conditions are met, then the set can be the set

[0254] In some aspects of the present disclosure, the number of PSFCHs in the set (e.g., denoted as ) and / or the power of each PSFCH in the set can be at least partially based on the set The set The set The set P CMAX and part or all of which are determined, where

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

[0256] ● The P CMAX can be a maximum output power. For example, the limitation on the includes: 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 determined at least in part according to the .

[0257] ● The can be the maximum number of PSFCHs that the UE is capable of transmitting in a PSFCH transmission occasion. For example, the limitation on the includes: the must be less than or equal to the

[0258] Specifically, for example, the UE can determine, at least in part, according to the power that can be allocated to each PSFCH transmission, the maximum output power limit corresponding to the P CMAX , and the maximum number of PSFCH transmission limits corresponding to the , some or all of the PSFCHs in the set (or, the set or, the set ) to form the set of PSFCHs, and determine the transmission power of each of the PSFCHs.

[0259] In some aspects of the present disclosure, the PSFCHs for simultaneous transmission in the set can be the PSFCHs with the highest priority in the set (or, the set or, the set ). of PSFCHs with the highest priority.

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

[0261] In addition, in step S103, perform PSFCH transmission or reception.

[0262] For example, if it is determined in step S101 that PSFCH transmission (instead of PSFCH reception) is to be performed, then perform PSFCH transmission. Specifically, for example, transmit the partial or all of the PSFCHs in the set (for example, for the operation of shared spectrum channel access, only partial PSFCHs in the set may have successful channel access corresponding to them, and correspondingly, only transmit this part of the PSFCHs); another example is to transmit the partial or all of the PSFCHs in the set (for example, for the operation of shared spectrum channel access, only partial PSFCHs in the set may have successful channel access corresponding to them, and correspondingly, only transmit this part of the PSFCHs).

[0263] Another example is that if it is determined in step S101 that PSFCH reception (instead of PSFCH transmission) is to be performed, then perform PSFCH reception. Specifically, for example, receive the partial or all of the PSFCHs in the set.

[0264] Embodiment 1 of the present disclosure can be applicable to operations without shared spectrum channel access.

[0265] Embodiment 1 of the present disclosure can be applicable to licensed spectrum.

[0266] Embodiment 1 of the present disclosure can be applicable to operations with shared spectrum channel access.

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

[0268] Embodiment 1 of the present disclosure can be executed by the physical layer protocol of the UE.

[0269] Embodiment 1 of the present disclosure can be executed by the higher layer protocol of the UE.

[0270] In Embodiment 1 of the present disclosure, the "perform PSFCH transmission" may mean that the UE is to perform PSFCH transmission during the PSFCH transmission opportunity.

[0271] In Embodiment 1 of the present disclosure, the "perform PSFCH reception" may mean that the UE is to perform PSFCH reception during the PSFCH reception opportunity.

[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 the first embodiment of the present disclosure, the "continuous 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 (such as the sidelink bandwidth segment b0) of a sidelink carrier (such as the sidelink carrier c0). For example, the one or more sidelink resource pools may be part or all of 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 (such as the sidelink carrier c0). In some aspects of the present disclosure, the one or more sidelink resource pools may be located in a respective sidelink bandwidth segment of multiple sidelink carriers. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in respective one or more sidelink bandwidth segments of multiple sidelink carriers.

[0274] In the first embodiment of the present disclosure, the "discontinuous RB set" may refer to a discontinuous RB set in a sidelink resource pool.

[0275] In the first embodiment of the present disclosure, the "discontinuous RB set" may refer to a discontinuous 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 (such as the sidelink bandwidth segment b0) of a sidelink carrier (such as the sidelink carrier c0). For example, the one or more sidelink resource pools may be part or all of 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 (such as the sidelink carrier c0). In some aspects of the present disclosure, the one or more sidelink resource pools may be located in a respective sidelink bandwidth segment of multiple sidelink carriers. In some aspects of the present disclosure, the one or more sidelink resource pools may be located in respective one or more sidelink bandwidth segments of multiple sidelink carriers.

[0276] Thus, as described in the first embodiment, the present disclosure provides a method. In the operation with shared spectrum channel access, if the UE does not support PSFCH transmission in a discontinuous RB set, when determining the RB set for PSFCH transmission, a continuous RB set of the RB set where the PSFCH with the smallest priority value and carrying HARQ-ACK information is located is selected, and when there is no PSFCH carrying HARQ-ACK information, a continuous RB set of the RB set where the PSFCH with the smallest priority value is located is selected. This ensures that the PSFCH transmission carrying HARQ-ACK information is always prioritized over the PSFCH transmission carrying collision information.

[0277] Variant

[0278] Next, use Figure 2 to illustrate a user equipment that can execute the method performed by the user equipment as described in detail above in the present disclosure.

[0279] Figure 2 is a block diagram showing the user equipment related to the present disclosure.

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

[0281] The methods and related devices of the present disclosure have been described above in connection with preferred embodiments. Those skilled in the art can understand that the methods shown above are merely exemplary, and the embodiments described above can be combined with each other without conflict. The methods of the present disclosure are not limited to the steps and sequences shown above. The network nodes and user equipment shown above may include more modules. For example, they may also include modules that can be developed or will be developed and can be used in base stations, AMF (Access and Mobility Management Function), UPF (User Plane Function), MME (Mobility Management Entity), S-GW (Serving Gateway), or UE, and so on. The various identifiers shown above are merely exemplary rather than restrictive, and the present disclosure is not limited to the specific cells that are examples of these identifiers. Those skilled in the art can make many changes and modifications according to the teachings of the shown embodiments.

[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 or a mathematical equation or a mathematical inequality can be simplified or transformed or rewritten to a certain extent. For example, combining constant terms, swapping two additive terms, swapping two multiplicative terms, moving a term from the left side to the right side of an equation or inequality after changing its sign, or moving a term from the right side to the left side of an equation or inequality after changing its sign, and so on; the mathematical expressions or mathematical equations or mathematical inequalities before and after simplification or transformation or rewriting can be considered equivalent.

[0283] It should be understood that the above embodiments of the present disclosure can be implemented by software, hardware, or a combination of software and hardware. For example, various components inside the base stations and user equipment in the above embodiments can be implemented by a variety of devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processors, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), complex programmable logic devices (CPLDs), and so on.

[0284] In the present disclosure, a "base station" may refer to a mobile communication data and / or control switching center with a certain transmission power and a certain coverage area, for example, including functions such as resource allocation and scheduling, data reception and transmission. A "user equipment" may refer to a user mobile terminal, for example, including terminal devices such as mobile phones and laptops that can communicate wirelessly with a base station or a 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 having a computer-readable medium encoded with computer program logic that, when executed on a computing device, provides related operations to implement the above 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. Such a setting of the present disclosure is typically provided as software, code, and / or other data structures, such as 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 ROMs or RAMs or PROM chips, or a downloadable software image, a shared database, etc. in one or more modules. The software or firmware or such a configuration can be installed on the computing device so that one or more processors in the computing device perform the technical solutions described in the embodiments of the present disclosure.

[0286] In addition, each functional module or each feature of the base station device and the terminal device used in each of the above embodiments can be implemented or executed by a circuit, and the circuit is usually one or more integrated circuits. The circuit designed to perform each function described in this specification may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), or a general integrated circuit, a field-programmable gate array (FPGA), or other programmable logic devices, discrete gates or transistor logic, or discrete hardware components, 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 above general-purpose processor or each circuit may be configured by a digital circuit or may be configured by a logic circuit. In addition, when advanced technologies capable of replacing the current integrated circuits emerge due to the progress of semiconductor technology, the present disclosure can also use integrated circuits obtained by using such advanced technologies.

[0287] Although the present disclosure has been shown above in conjunction with the preferred embodiments of the present disclosure, those skilled in the art will understand that various modifications, substitutions, and changes can be made to the present disclosure without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure should not be limited by the above embodiments, but should be defined by the appended claims and their equivalents.

Claims

1. A method performed by a user equipment UE, characterized in that including: Among the PSFCHs carrying HARQ-ACK information and PSFCHs carrying collision information to be transmitted in a PSFCH transmission occasion, select some or all of the PSFCHs to form a first PSFCH subset; and ， determining a second subset of PSFCHs composed of some or all of the PSFCHs in the first PSFCH subset and the power of each PSFCH in the second PSFCH subset; and, transmitting the PSFCHs 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 discontinuous RB set, the RB sets where the PSFCHs in the first PSFCH subset are located respectively are any one continuous RB set selected by the UE that meets the following conditions: For the continuous RB set contains at least one PSFCH with the smallest priority value among the PSFCHs carrying HARQ-ACK information, and for the continuous RB set contains at least one PSFCH with the smallest priority value among the PSFCHs carrying conflict information.

2. A user equipment, comprising: a processor; and a memory storing instructions, wherein the instructions, when run by the processor, execute the method according to claim 1.

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