Method executed by user equipment and user equipment

Abstract

According to the present disclosure, provided are a method executed by a user equipment and the user equipment, the method executed by the user equipment comprising: determining resources of a sidewalk resource pool in a sidewalk bandwidth fragment, comprising the following steps: determining a subset of a first time slot set consisting of all time slots in a frame number period as a second time slot set allocated to a sidewalk resource pool; and performing one or more sidewalk transmissions in the sidewalk resource pool; wherein in one time slot in the first time slot set, if at least one symbol in a plurality of continuous symbols starting from the symbol YNSL is not configured as an uplink symbol in a semi-static manner, the time slot is determined as a time slot which does not belong to the second time slot set, and if two candidate sideward symbols are not provided for the sideward bandwidth segment, the time slot is determined as a time slot which does not belong to the second time slot set. If yes, the symbol index of the symbol YNSL is provided by a first parameter sl-StartSymbol, otherwise, the symbol YNSL is the first one of the two candidate side row symbols, and the symbol index of the symbol YNSL is provided by a second parameter sl-StartSymbol Fire.

Description

Technical Field

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

[0002] In a wireless communication system, information can be exchanged between different communication nodes. Wireless communication can be carried out on licensed spectrum and / or unlicensed spectrum. Examples of wireless communication systems may include systems (system(s)) 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, and a 5G system or its evolved system based on NR (New Radio) wireless access technology. In a communication system based on 3GPP specifications, examples of communication nodes may include UE (User Equipment) and base stations (such as eNB, also such as gNB). The radio link (radio link) from the base station to the UE can be called a downlink (DL, downlink), the radio link from the UE to the base station can be called an uplink (UL, uplink), and the radio link between UEs can be called a sidelink (SL, sidelink). The interface for wireless transmission and / or reception between a base station and a UE may be referred to as 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 perform transmission or reception 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] Wireless communication systems, such as 4G and 5G, may support one or more positioning and / or ranging technologies. 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, at least in part, on measurements of some or all of the downlink, uplink, and sidelink signals.

[0004] To support various services in wireless communication systems, such as communication, positioning, and ranging, in part or in whole, a series of issues need to be addressed, such as operation on licensed and unlicensed spectrum; operation 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., 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., 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.

[0005] Prior art literature

[0006] Non-patent literature

[0007] Non-Patent Document 1: RP-170379, Revision of SI: Study on New Radio Access Technology, 3GPP TSG RAN Meeting #75

[0008] Non-Patent Document 2: RP-191971, Revised WID: New Radio Access Technology, 3GPPTSG RAN Meeting #85

[0009] Non-Patent Document 3: RP-190224, Revised SID: Study on NR V2X, 3GPP TSG RAN Meeting #83

[0010] Non-Patent Document 4: RP-200129, Revised WID on 5G V2X with NR sidelink, 3GPP TSGRAN Meeting #87-e

[0011] Non-Patent Document 5: RP-202846, Revised WID on NR Sidelink Enhancement, 3GPP TSGRAN Meeting #90-e

[0012] Non-Patent Document 6: RP-222806, Revised WID: NR sidelink evolution, 3GPP TSG RAN Meeting #98-e Summary of the Invention

[0013] In order to solve at least part of the above problems, the present disclosure provides a method performed by a user equipment and the user equipment, wherein, when determining a non-sidelink time slot (slot(s)) for a sidelink resource pool in a sidelink bandwidth segment, if two candidate sidelink symbols are not provided for the sidelink bandwidth segment, the first symbol Y of multiple consecutive symbols for checking whether it belongs to an uplink symbol is a first symbol Y of multiple consecutive symbols. NSL is the sideline start symbol in the sideline bandwidth segment, otherwise the symbol Y NSL This ensures that in either of the two configurations above, each time slot in the sidelink resource pool contains enough sidelink symbols that can be used for PSSCH transmission, thereby ensuring the reliability of sidelink transmission.

[0014] According to the present disclosure, a method performed by a user equipment is proposed, characterized by comprising: determining resources of a sidelink resource pool in a sidelink bandwidth segment, including determining a subset of a first time slot set consisting of all time slots in a frame number period as a second time slot set allocated to the sidelink resource pool; and performing one or more sidelink transmissions in the sidelink resource pool; wherein, if in a time slot of the first time slot set, from symbol Y NSL At least one of the first several consecutive symbols is not semi-statically configured as an uplink symbol, then the time slot is determined to be a time slot that does not belong to the second time slot set, wherein if two candidate sidelink symbols are not provided for the sidelink bandwidth segment, then the symbol YNSL The symbol index is provided by the first parameter sl-StartSymbol, otherwise the symbol Y NSL It is the first of the two candidate side symbols, and its symbol index is provided by a second parameter sl-StartingSymbolFirst.

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

[0016] Therefore, the present disclosure provides a method, wherein, when determining a non-sidelink time slot (s) for a sidelink resource pool in a sidelink bandwidth segment, if two candidate sidelink symbols are not provided for the sidelink bandwidth segment, the first symbol Y of a plurality of consecutive symbols for checking whether it belongs to an uplink symbol is NSL is the sideline start symbol in the sideline bandwidth segment, otherwise the symbol Y NSL This ensures that in either of the two configurations above, each time slot in the sidelink resource pool contains enough sidelink symbols that can be used for PSSCH transmission, thereby ensuring the reliability of sidelink transmission. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 A flowchart corresponding to a method executed by a UE according to the first embodiment of the present disclosure is shown.

[0019] Figure 2 A flowchart corresponding to a method executed by a UE according to the second embodiment of the present disclosure is shown.

[0020] Figure 3 A block diagram of a UE involved in the present disclosure is shown. DETAILED DESCRIPTION

[0021] 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.

[0022] The following describes multiple implementations of the present disclosure using the 5G wireless communication system specifications developed by 3GPP and their subsequent evolutionary versions (e.g., 5G Advanced) as example application environments. However, it should be noted that the present disclosure is not limited to the following implementations, but is applicable to many other wireless communication systems, such as wireless communication systems after 5G, and 4G mobile communication systems before 5G, such as LTE, LTE-Advanced, and LTE-Advanced Pro.

[0023] 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.

[0024] In all embodiments and implementations of the present disclosure, unless otherwise specified:

[0025] ●“Node” and “communication node” are interchangeable.

[0026] ● “Device” and “User Equipment” (UE) are interchangeable.

[0027] ●“Base station” may refer to a base station of a 4G or its evolved system, or may refer to a base station of a 5G or its evolved system, or may refer to a base station in other communication systems.

[0028] ● Any two of “predefined”, “predetermined” and “preset” can be interchanged.

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

[0030] ●The elements in a set (or array, or list, or sequence, etc.) can 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.

[0031] An element in a collection (or array, or list, or sequence, etc.) can be referred to by its index (e.g., the subscript of the element in the collection, array, list, or sequence). For example, a resource element (RE) with an index of 0 can be referred to as "RE 0."

[0032] ●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.

[0033] ●The index corresponding to an object can be used to indicate the object in signaling.

[0034] 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.

[0035] ● A time series or a corresponding set (e.g., a set of time slots {t0, t1, ..., t N-1 The elements in}) may appear in chronological order, for example, the time corresponding to time slot t0 is earlier than (or no later than) the time corresponding to time slot t1, the time corresponding to time slot t1 is earlier than (or no later than) the time corresponding to time slot t2, and so on.

[0036] ●Δ(x1, x2) can represent the offset between x1 and x2 (or, “offset of x2 with respect to x1”; or, “offset from x1 to x2”), where x1 and x2 can be the values ​​of two comparable parameters (or variables), or can be two possible values ​​of a parameter (or variable). If x1 and x2 are two time parameters (or variables), then Δ(x1, x2)>0 can represent that the time corresponding to x1 is earlier than the time corresponding to x2, Δ(x1, x2)≥0 can represent that the time corresponding to x1 is earlier than or equal to the time corresponding to x2, Δ(x1, x2)<0 can represent that the time corresponding to x1 is later than the time corresponding to x2, and Δ(x1, x2)≤0 can represent that the time corresponding to x1 is later than or equal to the time corresponding to x2. For example, if x1 and x2 are two time slots in a resource pool, then 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).

[0037] 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.

[0038] 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.

[0039] ●Constant T c It can be defined as: T c =1 / (Δf max ·N f ), where Δf max =480·10 3 Hz, N f =4096.

[0040] ●The constant κ can be defined as: κ = T s / T c =64, where T s =1 / (Δf ref·N f，ref ), Δf ref =15·10 3 Hz, N f，ref =2048.

[0041] Modulo Operation can be defined as r≡a mod N, where

[0042] ■r is the remainder.

[0043] ■a=N×q+r,where q can be called the integer quotient of a and N.

[0044] ■0≤r<|N|.

[0045] 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.

[0046] In some aspects, a bit string (e.g., 'b0b1...b L-1 '), the leftmost bit (ie, b0) can correspond to the most significant bit (MSB), and accordingly, the rightmost bit (ie, b L-1 ) may correspond to the least significant bit (LSB).

[0047] In some aspects, a bit string (e.g., denoted as '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.

[0048] In some aspects, a bit string can be referred to as a bitmap (or bit map), and vice versa.

[0049] In some aspects, a priority level may correspond to a priority value, for example, one priority level may correspond to a priority value of 1, and another priority level may correspond to a priority value of 8.

[0050] In some aspects, a relationship between a priority and its corresponding priority value can 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.

[0051] In some aspects, a relationship between a priority and its corresponding priority value can be such that as the priority value increases, the priority increases. For example, if a first sideline transmission and a second sideline transmission are associated with priority values ​​of 1 and 2, respectively, the priority of the first sideline transmission is lower than the priority of the second sideline transmission.

[0052] In some aspects, an "operating band" may refer to an operating band whose duplex mode is FDD (Frequency Division Duplex), or an operating band whose duplex mode is TDD (Time Division Duplex), or an operating band defined in other ways.

[0053] In some aspects, a "node" may refer to a network node (eg, a base station).

[0054] In some aspects, "node" may refer to a non-network node (eg, a UE).

[0055] In some respects, "Layer 1" and "Physical Layer" are interchangeable.

[0056] In some aspects, "Layer 2" may not include any sub-layers.

[0057] In some aspects, "Layer 2" may include one or more sublayers, such as part or all of MAC (Medium Access Control), RLC (Radio Link Control), PDCP (Packet Data Convergence Protocol), and SDAP (Service Data Adaptation Protocol).

[0058] In some aspects, "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 particular protocol stack (e.g., an access stratum protocol stack). For example, if the reference protocol layer or reference protocol sublayer is a physical layer, the "higher layer" may at least partially include a MAC layer, an RLC layer, a PDCP layer, an SDAP layer, an RRC (Radio Resource Control) layer, a PC5-RRC layer, and part or all of the PC5-S layer. In all embodiments and implementations of the present disclosure, unless otherwise specified, the reference protocol layer or reference protocol sublayer may be a physical layer. Where there is no risk of confusion, a "higher layer" may also be referred to as a "higher layer."

[0059] In some aspects, "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 particular 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. In all embodiments and implementations of the present disclosure, unless otherwise specified, the reference protocol layer or reference protocol sublayer may be the MAC layer. Where there is no risk of confusion, the "lower layer" may also be referred to as the "lower layer."

[0060] In some aspects, "signaling" may refer to physical layer signaling, such as DCI (Downlink Control Information), UCI (Uplink Control Information), and SCI (Sidelink Control Information).

[0061] In some aspects, "signaling" may refer to higher layer signaling, such as MAC CE (Control Element).

[0062] In some aspects, a "parameter" may refer to a physical layer parameter.

[0063] In some aspects, a "parameter" can refer to a higher-level parameter.

[0064] In some aspects, a "parameter" may refer to a predefined parameter. For example, the number of subcarriers in each RB Can be a predefined constant, such as

[0065] In some aspects, a "parameter" may refer to a "configured" parameter. For example, configuration information corresponding to a "configured" parameter (e.g., including the value of the parameter) may be provided by a protocol layer (e.g., the RRC layer) in a communication node to another protocol layer (e.g., the physical layer); for another example, 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 communication node to a peer protocol layer in another communication node; for another example, configuration information corresponding to a "configured" parameter (e.g., the value of the parameter) may be pre-set in a specific storage location in a communication node or other storage location accessible to the node. In this case, the "configured" parameter may also be referred to as a "pre-configured" parameter.

[0066] In all embodiments and implementations of the present disclosure, unless otherwise specified, “parameter” may refer to a higher-level parameter.

[0067] In all embodiments and implementations of the present disclosure, unless otherwise specified, a “symbol” may refer to an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0068] In some aspects, 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.

[0069] In some aspects, 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, a number of subchannels occupied by the resource, a number of RBs occupied by the resource, and a number of subcarriers occupied by the resource.

[0070] In some aspects, a resource may be identified at least in part 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.

[0071] In some aspects, 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 of one or more layers to which a TB (Transport Block) or its corresponding codeword is mapped in spatial multiplexing.

[0072] In some aspects, "RB" may refer to a PRB (physical resource block), and accordingly, "RB index" may refer to a PRB index.

[0073] In some aspects, "RB" may refer to a VRB (virtual resource block), and accordingly, "RB index" may refer to a VRB index.

[0074] In some aspects, "RB" may refer to a CRB (common resource block), and accordingly, "RB index" may refer to a CRB index.

[0075] In some aspects, "RB" may refer to an IRB (Interlaced Resource Block), and accordingly, "RB index" may refer to an IRB index.

[0076] In some aspects, 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).

[0077] In some aspects, in the time domain, a "frame" (or "radio frame") may refer to a direct frame (the corresponding frame number may be referred to as a direct frame number, DFN).

[0078] In some aspects, a frame number cycle (or frame cycle) may include T FNP = 1024 frames, for example, indexed as 0, 1, ..., 1023 in chronological order. 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 index of a time slot in the frame period can be recorded as in Can be equal to (For example, 1024·(10·2 μ )=10240·2 μ ).

[0079] In some aspects, a frame number cycle may be a SFN cycle.

[0080] In some aspects, a frame number cycle may be a DFN cycle.

[0081] In some aspects, 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 (e.g., a frame number period; for example, a frame; for example, a subframe); the physical time slots in the physical time slot set may be indexed in chronological order as 0, 1, ...

[0082] In some aspects, "transmission" may refer to uplink transmission, or may refer to downlink transmission, or may refer to sidelink transmission.

[0083] In some aspects, "carrier" may refer to an uplink carrier, or may refer to a downlink carrier, or may refer to a sidelink carrier.

[0084] In some aspects, a "bandwidth segment" may refer to an upstream bandwidth segment, or may refer to a downstream bandwidth segment, or may refer to a sidelink bandwidth segment.

[0085] In some aspects, an SCS may be configured (or provided) for a bandwidth segment, for example, the SCS may be provided by the parameter subcarrierSpacing. In some aspects, unless otherwise specified (or unless otherwise configured), the SCS may be used for all channels (or all physical layer channels) and all signals (or all physical layer signals) in the bandwidth segment. In some aspects, the applicable SCS may be related to the frequency range, for example, for FR1 (Frequency Range 1), the applicable SCS may at least partially include 15kHz, 30kHz, and 60kHz; for example, for FR2-1 (Frequency Range 2-1), the applicable SCS may at least partially include 60kHz and 120kHz; for example, for FR2-2 (Frequency Range 2-2), the applicable SCS may at least partially include 120kHz, 480kHz, and 960kHz.

[0086] In some aspects, the SCS of an uplink bandwidth segment may be referred to as an "uplink SCS" (or "UL SCS"), the SCS of a downlink bandwidth segment may be referred to as a "downlink SCS" (or "DL SCS"), and the SCS of a sidelink bandwidth segment may be referred to as a "sidelink SCS" (or "SL SCS").

[0087] In some aspects, "operation" may refer to an upstream operation, or may refer to a downstream operation, or may refer to a sideways operation.

[0088] In some aspects, a "transmission" may correspond to a transmission on a 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.

[0089] In some aspects, 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.

[0090] In some aspects, 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, alternatively, several RBs in a time slot). For example, an "SS / PBCH block" (or "SSB" or "SS block") may consist of a PSS, an SSS, and a PBCH multiplexed in the same time slot; for example, an "S-SS / PSBCH block" (or "S-SSB" or "S-SS block" or "sidelink SSB") may consist of an S-PSS, an S-SSS, and a PSBCH multiplexed in the same time slot; for example, a "PSCCH / PSSCH" (or "PSSCH / PSCCH") may consist of a PSCCH and its associated PSSCH multiplexed in the same time slot (e.g., a time slot in a resource pool). Here, "S-SS / PSBCH" may represent Sidelink Synchronization Signal / Physical Sidelink Broadcast Channel.

[0091] In some aspects, 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."

[0092] In some aspects, 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".

[0093] In some aspects, when there is no risk of confusion, the name of a physical channel (or physical signal) used for reception can be used to refer to the reception of the physical channel (or physical signal). For example, "PSFCH" can mean "PSFCH reception".

[0094] In some aspects, "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). In all embodiments and implementations of the present disclosure, "sideline" may refer to NR sideline unless otherwise specified.

[0095] In some aspects, "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).

[0096] In some aspects, "sideline operations" may include, at least in part, some or all of sideline reception, sideline transmission, and sideline measurement.

[0097] In some aspects, "sidewalk operation" may be used, at least in part, for some or all of the sidewalk functions including sidewalk communication, sidewalk discovery, and sidewalk positioning. For example, "sidewalk reception" may include reception for sidewalk communication; for another example, "sidewalk transmission" may include transmission for sidewalk discovery; for another example, "sidewalk measurement" may include measurement for sidewalk positioning.

[0098] In some aspects, a "resource pool" may refer to a sideline resource pool.

[0099] In some aspects, a "sidelink grant" may refer to a "sidelink dynamic grant," or a "sidelink configured grant," or another form of sidelink grant.

[0100] In some aspects, 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.

[0101] In some aspects, a “release” operation on a sidewalk configuration permission may also be referred to as a “deactivation” operation on the sidewalk configuration permission.

[0102] In some respects, "dynamic sidelink grant" and "dynamic sidelink grant" are interchangeable.

[0103] In some aspects, "sidelink configuration grant" and "configured sidelink grant" are interchangeable.

[0104] In some aspects, "type 1 sidelink configured grant" and "sidelink configured grant type 1" may be interchangeable.

[0105] In some aspects, "type 2 sidelink configured grant" and "sidelink configured grant type 2" may be interchangeable.

[0106] In some aspects, a "sidelink identity" (sidelink ID) may refer to a layer sidelink identifier.

[0107] In some aspects, a "sideline identifier" may refer to a layer 2 sideline identifier.

[0108] In some aspects, 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).

[0109] In some aspects, a “sidelink identifier” can be used as a “source identifier” (source ID). For example, a source identifier indicated in a unicast (or multicast, or broadcast) transmission can be used to identify the UE performing the transmission.

[0110] In some aspects, a "priority level" may be referred to as a "side priority level."

[0111] In some aspects, 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 a symbol or multiple consecutive symbols in a time slot in the time domain and corresponding to one or more subchannels in the frequency domain.

[0112] In some aspects, a "sidebar symbol" may refer to a symbol that is predefined for sidebar use.

[0113] In some aspects, a "sidewalk symbol" may refer to a symbol configured for sidewalking. In some aspects, "sidewalking" herein may not include operations such as transmission and / or reception of an S-SSB. In some aspects, "sidewalking" herein may include operations such as transmission and / or reception of an S-SSB.

[0114] In some aspects, a "logical time slot" may refer to a time slot belonging to a resource pool.

[0115] In some aspects, a "logical time slot" may refer to a time slot that may be configured to belong to a resource pool.

[0116] In some aspects, a "sideways time slot" may refer to a time slot belonging to a resource pool.

[0117] In some aspects, a "sidetrack timeslot" may refer to a timeslot that may be configured to belong to a resource pool.

[0118] In some aspects, a "sidetrack slot" may refer to a slot containing sidetrack symbol(s).

[0119] In some aspects, a "sideline timeslot" may refer to a timeslot that may be used for sideline transmission and / or sideline reception.

[0120] In some aspects, one "side slot" may be applicable for transmission and / or reception of part or all of the PSSCH, PSCCH, and PSFCH.

[0121] In some aspects, a "side slot" is not suitable for transmission and / or reception of S-SSBs, and accordingly, a "side slot" is a slot not used for S-SSBs.

[0122] In some aspects, the "symbol index" of a symbol may refer to the index of the symbol within the time slot in which it resides.

[0123] In some aspects, SCI corresponding to a particular SCI format (e.g., denoted as SCI format X) carried in a sidelink transmission (e.g., PSCCH; also, PSSCH; also, 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."

[0124] In some aspects, "SCI" ​​may refer to "single-stage SCI."

[0125] In some aspects, "SCI" ​​can refer to part or all of a "two-stage SCI". For example, "SCI" ​​can 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.

[0126] In some aspects, a sidelink bandwidth segment may be associated with a "type 0 start sidelink symbol" (e.g., the corresponding symbol index is ).

[0127] In some aspects, the It may be configured (or provided) by a higher layer parameter (eg, sl-StartSymbol), or may be determined based on one or more higher layer parameters.

[0128] In some aspects, a sidelink bandwidth segment can be associated with a "sidelink symbol number" (e.g., denoted as ).

[0129] In some aspects, the The value of can be an element from the set {7, 8, 9, 10, 11, 12, 13, 14}.

[0130] In some aspects, the It may be configured (or provided) by a higher layer parameter (eg, sl-LengthSymbols), or may be determined based on one or more higher layer parameters.

[0131] In some aspects, a sidelink bandwidth segment may be associated with a "Type 1 start sidelink symbol" (e.g., the corresponding symbol index is ).

[0132] In some aspects, the The value of can be an element from the set {0, 1, 2, 3, 4, 5, 6}.

[0133] In some aspects, the It may be applicable to (or, applicable to and only applicable to) operations with shared spectrum channel access (eg, operations with shared spectrum channel access in FR1).

[0134] In some aspects, the It may be configured (or provided) by a higher layer parameter (eg, sl-StartingSymbolFirst), or may be determined based on one or more higher layer parameters.

[0135] In some aspects, if the higher layer parameter sl-StartingSymbolFirst is not configured, the value of the higher layer parameter sl-StartingSymbolFirst may be 0. For example, in this case, the value of the higher layer parameter sl-StartingSymbolFirst provided by higher layers of a UE to the physical layer of the UE may be 0.

[0136] In some aspects, if the higher layer parameter sl-StartingSymbolFirst is not configured, then

[0137] In some aspects, a sidelink bandwidth segment may be associated with a "type 2 start sidelink symbol" (e.g., the corresponding symbol index is ).

[0138] In some aspects, the The value of can be an element from the set {3, 4, 5, 6, 7}.

[0139] In some aspects, in a time slot, the symbol Later than symbol For example, and

[0140] In some aspects, the It may be applicable to (or, applicable to and only applicable to) operations with shared spectrum channel access (eg, operations with shared spectrum channel access in FR1).

[0141] In some aspects, the It may be configured (or provided) by a higher layer parameter (eg, sl-StartingSymbolSecond), or may be determined based on one or more higher layer parameters.

[0142] In some aspects, if the higher layer parameter sl-StartingSymbolSecond is configured and the higher layer parameter sl-StartingSymbolFirst is not configured, then the value of the higher layer parameter sl-StartingSymbolFirst may be 0. For example, in this case, the value of the higher layer parameter sl-StartingSymbolFirst provided by higher layers of a UE to the physical layer of the UE may be 0.

[0143] In some aspects, if the higher layer parameter sl-StartingSymbolSecond is configured and the higher layer parameter sl-StartingSymbolFirst is not configured, then

[0144] In some aspects, if the higher layer parameter sl-StartingSymbolSecond is configured, the higher layer parameter sl-StartingSymbolFirst and the higher layer parameter sl-StartingSymbolSecond are provided (e.g., by a higher layer of a UE to the physical layer of the UE) for the corresponding sidelink bandwidth segment, wherein if the higher layer parameter sl-StartingSymbolFirst is not configured, the value of the provided higher layer parameter sl-StartingSymbolFirst is 0.

[0145] In some aspects, the higher layer parameters sl-StartingSymbolFirst and sl-StartingSymbolSecond are provided (e.g., by higher layers of a UE to the physical layer of the UE) for the corresponding sidelink bandwidth segment if and only if the higher layer parameters sl-StartingSymbolFirst and sl-StartingSymbolSecond are configured.

[0146] In some aspects, a side symbol in a time slot may be consecutive symbols, for example, the corresponding symbol indices can be ……,as well as in, It may be configured (or provided) by a higher layer parameter, or may be determined based on one or more higher layer parameters.

[0147] In some aspects, the Can be equal to the

[0148] In some aspects, the Can be equal to the

[0149] In some aspects, if the Type 1 single start symbol condition is met, then the Can be equal to the

[0150] In some aspects, if the Type 1 double start symbol condition is met, the Can be equal to the

[0151] In some aspects, for a time slot without a PSFCH symbol, if the Type 1 double start symbol condition is met, the Can be equal to the

[0152] In some aspects, for a time slot with a PSFCH symbol, if the type 1 double start symbol condition is met, the Can be equal to the

[0153] In some aspects, in a time slot, PSSCH resource allocation may start at symbol

[0154] In some aspects, in a time slot, PSSCH resource allocation may start at symbol

[0155] In some aspects, in a time slot, if the Type 1 single start symbol condition is met, the PSSCH resource allocation may start at symbol

[0156] In some aspects, in a time slot, PSSCH resource allocation may start at symbol Unless the Type 1 double start symbol condition is met.

[0157] In some aspects, if the type 1 double start symbol condition is met, there may be two "candidate start symbols" (or "candidate sideline start symbols") for PSSCH transmission (or, PSCCH / PSSCH transmission) in a time slot without a PSFCH symbol, for example, the symbols and symbol

[0158] In some aspects, if the type 1 double start symbol condition is met, then a time slot with a PSFCH symbol may have a candidate start symbol (or, in this case, referred to as a "start symbol" or "sideline start symbol") for a PSSCH transmission (or, a PSCCH / PSSCH transmission), such as the symbol As mentioned above

[0159] In some aspects, if the Type 1 double start symbol condition is met, the PSSCH resource allocation may start at the symbol next to a candidate start symbol. For example, in this case, for a time slot without a PSFCH symbol, the PSSCH resource allocation may start at the symbol (For example, when the symbol Previously successfully accessed the corresponding shared spectrum channel) or symbol (For example, when the symbol For example, in this case, for a time slot with PSFCH symbols, PSSCH resource allocation can start at symbol For example, in this case, for a time slot with PSFCH symbols, PSSCH resource allocation can start at symbol

[0160] In some aspects, for a sidelink bandwidth segment, the type 1 single start symbol condition may at least partially include one or more of the following (e.g., the type 1 single start symbol condition may correspond to a combination of one or more of the following in an AND or OR manner):

[0161] ● The parameter sl-StartSymbol is configured for the sidelink bandwidth segment.

[0162] • The parameter sl-StartSymbol is provided for the sideband bandwidth segment.

[0163] ● The parameter sl-StartingSymbolFirst and the parameter sl-StartingSymbolSecond are not configured for the sidelink bandwidth segment.

[0164] • The parameter sl-StartingSymbolFirst and the parameter sl-StartingSymbolSecond are not provided for the sideline bandwidth segment.

[0165] • The parameter sl-StartingSymbolFirst or the parameter sl-StartingSymbolSecond is not configured for the sidelink bandwidth segment.

[0166] • The parameter sl-StartingSymbolFirst or the parameter sl-StartingSymbolSecond is not provided for the sideline bandwidth segment.

[0167] ● The parameter sl-StartingSymbolSecond is not configured for the sidelink bandwidth segment.

[0168] • The parameter sl-StartingSymbolSecond is not provided for the sideline bandwidth segment.

[0169] ● The parameter sl-StartingSymbolFirst is not configured for the sidelink bandwidth segment.

[0170] • The parameter sl-StartingSymbolFirst is not provided for the sideline bandwidth segment.

[0171] In some aspects, all operations related to the type 1 single start symbol condition may refer to operations in a corresponding sideband bandwidth segment (e.g., a sideband bandwidth segment that satisfies the type 1 single start symbol condition; or, for example, a sideband bandwidth segment that does not satisfy the type 1 single start symbol condition).

[0172] In some aspects, for a sidelink bandwidth segment, the type 1 double start symbol condition may include, at least in part, one or more of the following (e.g., the type 1 double start symbol condition may correspond to a combination of one or more of the following in an AND or OR manner):

[0173] ● The parameter sl-StartSymbol is configured for the sidelink bandwidth segment.

[0174] • The parameter sl-StartSymbol is provided for the sideband bandwidth segment.

[0175] ● The parameter sl-StartSymbol is not configured for the sidelink bandwidth segment.

[0176] • The parameter sl-StartSymbol is not provided for the sideband bandwidth segment.

[0177] ●The corresponding operation is an operation with shared spectrum channel access.

[0178] The corresponding frequency range (for example, the frequency range where the sideline bandwidth segment is located, or the frequency range where the sideline carrier where the sideline bandwidth segment is located) is FR1.

[0179] The parameter sl-StartingSymbolFirst and the parameter sl-StartingSymbolSecond are configured for the sidelink bandwidth segment.

[0180] The parameter sl-StartingSymbolFirst and the parameter sl-StartingSymbolSecond are provided for the sideline bandwidth segment.

[0181] The parameter sl-StartingSymbolFirst or the parameter sl-StartingSymbolSecond is configured for the sidelink bandwidth segment.

[0182] • The parameter sl-StartingSymbolFirst or the parameter sl-StartingSymbolSecond is provided for the sideline bandwidth segment.

[0183] ● The parameter sl-StartingSymbolSecond is configured for the sidelink bandwidth segment.

[0184] • The parameter sl-StartingSymbolSecond is provided for the sideline bandwidth segment.

[0185] ● The parameter sl-StartingSymbolFirst is configured for the sidelink bandwidth segment.

[0186] • The parameter sl-StartingSymbolFirst is provided for the sideline bandwidth segment.

[0187] In some aspects, all operations related to the type 1 double start symbol condition may refer to operations in a corresponding side bandwidth segment (e.g., a side bandwidth segment that satisfies the type 1 double start symbol condition; or, for example, a side bandwidth segment that does not satisfy the type 1 double start symbol condition).

[0188] In some aspects, for a sidelink bandwidth segment, the Type 1 single start symbol condition may be determined based on the Type 1 double start symbol condition. For example, "satisfying the Type 1 single start symbol condition" may be defined as "not satisfying the Type 1 double start symbol condition." Specifically, for example, if the Type 1 double start symbol condition is not satisfied, the Type 1 single start symbol condition is satisfied; for another example, if the Type 1 double start symbol condition is satisfied, the Type 1 single start symbol condition is not satisfied.

[0189] In some aspects, for a sidelink bandwidth segment, the Type 1 double start symbol condition may be determined based on the Type 1 single start symbol condition. For example, "satisfying the Type 1 double start symbol condition" may be defined as "not satisfying the Type 1 single start symbol condition." Specifically, for example, if the Type 1 single start symbol condition is not satisfied, the Type 1 double start symbol condition is satisfied; for another example, if the Type 1 single start symbol condition is satisfied, the Type 1 double start symbol condition is not satisfied.

[0190] In some aspects, the term "time slot" may be replaced with "sideways time slot." For example, when referring to sideways operation, the term "time slot" may refer to a "sideways time slot."

[0191] In some aspects, a method suitable for described described and the Part or all of the time slot may be a time slot not used for S-SSB.

[0192] In some aspects, "sl-StartingSymbolFirst" can be replaced with "startingSymbolFirst" and vice versa.

[0193] In some aspects, "sl-StartingSymbolSecond" may be replaced with "startingSymbolSecond" and vice versa.

[0194] Example 1

[0195] The following combination Figure 1 To illustrate the method executed by the UE in the first embodiment of the present disclosure.

[0196] Figure 1 A flowchart corresponding to a method executed by a UE according to the first embodiment of the present disclosure is shown.

[0197] like Figure 1 As shown, in the first embodiment of the present disclosure, the steps performed by the UE include: step S101 and step S103.

[0198] Specifically, in step S101, it is determined that a sideline resource pool (e.g., denoted as e) is assigned to. SL )'s resources (resource(s)).

[0199] The side resource pool e SL It can be located in a side bandwidth segment (for example, bwp SL )middle.

[0200] In some aspects, the side resource pool e SL Sidelink resource allocation mode 1 may be associated.

[0201] In some aspects, the side resource pool e SL Sidelink resource allocation mode 2 may be associated.

[0202] In some aspects, the sideline resource pool e is allocated SL The time slot set (for example, denoted as ) can be a collection A subset of , where

[0203] ●In some aspects, the set It can be called a "logical time slot set".

[0204] ●In some aspects, for the condition 0≤i<T max The integer i, the slot index Can satisfy Wherein, μ may be the corresponding SCS configuration (for example, the μ may be the side bandwidth segment bwp SL SCS configuration).

[0205] ●In some aspects, for the condition 0≤i<T max The integer i, It may be a slot index relative to slot 0 in the radio frame corresponding to frame number 0 (eg, DFN 0 or SFN 0 of the serving cell).

[0206] In some aspects, the set T SL It can be equal to a set containing all time slots (for example, denoted as T all ) is the set obtained by removing all "non-side slots". Here, the "all slots" may refer to all slots in a frame number cycle, that is, T all ={0, 1, ..., 10240×2 μ -1}.

[0207] In some aspects, the set T SL The elements in can be arranged in increasing order of slot index.

[0208] In some aspects, the "non-sideline time slots" may include part or all of type 1 non-sideline time slots, type 2 non-sideline time slots, and type 3 non-sideline time slots.

[0209] In some aspects, the set T all There can be Type 1 non-sideline time slots, where Can be an integer greater than or equal to 0.

[0210] In some aspects, the set T all There can be Type 2 non-sideline time slots, where Can be an integer greater than or equal to 0.

[0211] In some aspects, the set T all There can be Type 3 non-sideline time slots, where Can be an integer greater than or equal to 0.

[0212] In some aspects, a type 1 non-sidelink timeslot may refer to a timeslot configured with a type 1 S-SSB or a type 2 S-SSB.

[0213] In some aspects, a time slot used for transmission of a Type 1 S-SSB may be referred to as a "Type 1 S-SSB transmission opportunity" (or "Type 1 S-SSB opportunity").

[0214] In some aspects, a Type 1 S-SSB may be configured based at least in part on one or more of the following higher layer parameters:

[0215] sl-NumSSB-WithinPeriod: For example, the sl-NumSSB-WithinPeriod may be used to indicate the number of S-SSB transmissions within an S-SSB period.

[0216] sl-TimeOffsetSSB: For example, it can be used to indicate the time slot offset from the start of the S-SSB period to the first S-SSB.

[0217] ●sl-TimeInterval: For example, it can be used to indicate the time slot interval (slotinterval) between adjacent S-SSBs.

[0218] In some aspects, a time slot used for transmitting a type 2 S-SSB may be referred to as a "type 2 S-SSB transmission opportunity" (or "type 2 S-SSB opportunity," or "additional candidate S-SSB opportunity").

[0219] In some aspects, a Type 2 S-SSB may be configured based at least in part on one or more of the following higher layer parameters:

[0220] sl-NumOfAdditionalSSSB0ccasion: For example, the sl-NumOfAdditionalSSSB0ccasion may be used to indicate the additional candidate S-SSB opportunities corresponding to each time slot used for Type 1 S-SSB.

[0221] sl-GapOfAdditionalSSSB-Occasion. For example, the sl-GapOfAdditionalSSSB-Occasion may be used to indicate the gap between each Type 1 S-SSB slot and its corresponding first additional candidate S-SSB opportunity, as well as the gap between adjacent additional candidate S-SSB opportunities corresponding to the Type 1 S-SSB slot.

[0222] In some aspects, a type 2 non-sideways timeslot may refer to a timeslot that satisfies the type 2 non-sideways timeslot conditions.

[0223] In some aspects, for time slot t j (For example, j ∈T all), the type 2 non-sideways time slot condition may at least partially include one or more of the following (for example, the type 2 non-sideways time slot condition may correspond to a combination of one or more of the following in an "and" or "or" manner):

[0224] The time slot t j The symbol Y in NSL 、Symbol Y NSL +1, ..., and the symbol Y NSL +X NSL At least one symbol in -1 is not semi-statically configured as an uplink symbol (or referred to as a "UL symbol", or simply "UL").

[0225] The time slot t j The symbol Y in NSL +1, symbol Y NSL +2, ..., and the symbol Y NSL +X NSL At least one symbol is not semi-statically configured as an uplink symbol.

[0226] The time slot t j The symbol Y in NSL -1. Symbol Y NSL , ..., and the symbol Y NSL +X NSL -2 At least one symbol is not semi-statically configured as an uplink symbol.

[0227] The time slot t j The Yth NSL Symbol, Y NSL +1 symbol, ..., and the Yth NSL +X NSL -At least one of the 1 symbols is not semi-statically configured as an uplink symbol.

[0228] The time slot t j The Yth NSL +1 symbol, Y NSL +2 symbols, ..., and the Y NSL +X NSL At least one of the symbols is not semi-statically configured as an uplink symbol.

[0229] The time slot t j The Yth NSL -1 symbol, Y NSL symbols, ..., and the Yth NSL +X NSL - At least one of the two symbols is not semi-statically configured as an uplink symbol.

[0230] In some aspects, the X NSL Can be equal to the side bandwidth fragment bwp SL Related

[0231] In some aspects, the Y NSL Can be equal to the side bandwidth fragment bwp SL Related

[0232] In some aspects, if the sideband bandwidth segment bwp SL If the type 1 single start symbol condition is met, then the Y NSL Can be equal to the side bandwidth fragment bwp SL Related

[0233] In some aspects, if the sideband bandwidth segment bwp SL If the type 1 double start symbol condition is met, then the Y NSL Can be equal to the side bandwidth fragment bwp SL Related

[0234] In some aspects, the set T SL The number of elements in can be

[0235] In some respects, Among them, L bitmap It may be configured (or provided) by a higher layer parameter, or may be determined based on one or more higher layer parameters.

[0236] In some aspects, the L bitmap It can be the side resource pool e SL A bitmap associated with SL ) in length. In some aspects, the bitmap B SL Can be used to determine the sideline resource pool e SL In some aspects, the bitmap B SL The bits in can be denoted as b0, b1, ..., and (For example, in order from the most significant bit to the least significant bit; for example, in order from the least significant bit to the most significant bit), accordingly, the bitmap B SL It can be recorded as In some aspects, the bitmap B SLThe L may be configured (or provided) by a higher layer parameter (e.g., sl-TimeResource), or may be determined based on one or more higher layer parameters. bitmap Can be equal to the bitmap B SL The number of bits indicated (or occupied) by the corresponding higher-layer parameter (e.g., the sl-TimeResource).

[0237] In some aspects, the The type 3 non-sideline time slots may be determined according to the following steps (e.g., performed in the order in which these steps occur):

[0238] ●In the set T all Remove the Type 1 non-sideline time slots and the Type 2 non-sideline time slots, and the remaining time slots are represented in ascending order of time slot index as l0, l1, ..., and

[0239] ●To satisfy If the integer r Then time slot l r is a type 3 non-sideline time slot. Here,

[0240] In some aspects, the set It may be determined at least in part based on some or all of the following steps (e.g., performed in the order in which these steps appear):

[0241] ●The collection Initialized to an empty set.

[0242] ●Determine the bitmap For example, the L is determined at least in part based on the higher layer parameter sl-TimeResource bitmap and said b0, said b1, ..., and said

[0243] ●To satisfy For an integer k, if Then the set T SL Time slots in Belongs to the set Here, k0 = k mod L bitmap .

[0244] ●The set T SL in, belonging to the set Add the time slot to the collection and make the collection The time slots in the set T SL For example, if the time slot Time Slot Time Slot etc. do not belong to the set The time slot Time Slot Time Slot etc. belong to the set Then the set Can be

[0245] ●The collection The time slots in the sequence can be recorded as as well as Right now, Here, T′ max is the set The number of elements in .

[0246] In addition, in step S103, in the side resource pool e SL Perform one or more side operations in .

[0247] For example, in the side resource pool e Sl One or more PSSCH transmissions (or, PSCCH / PSSCH transmissions) are performed in.

[0248] For example, in the side resource pool e SL One or more PSSCH receptions (or, PSCCH / PSSCH receptions) are performed.

[0249] For example, in the side resource pool e SL One or more SL PRS transmissions (or, PSCCH / SL PRS transmissions) are performed in.

[0250] For example, in the side resource pool e SL One or more SL PRS receptions (or, PSCCH / SL PRS receptions) are performed.

[0251] In some aspects, in the first embodiment of the present disclosure, a symbol may be semi-statically configured as an uplink symbol by a higher layer parameter (e.g., one of one or more higher layer parameters), wherein:

[0252] • In some aspects, only one of the one or more higher layer parameters may be provided to the UE.

[0253] • In some aspects, more than one of the one or more higher layer parameters may be provided to the UE.

[0254] In some aspects, the one or more higher-layer parameters may include some or all of the following:

[0255] ■tdd-UL-DL-ConfigurationCommon in serving cell.

[0256] ■sl-TDD-Configuration.

[0257] ■sl-TDD-Config in the received PSBCH.

[0258] In some aspects, in the first embodiment of the present disclosure, a symbol may be semi-statically determined as an uplink symbol based on one or more higher layer parameters.

[0259] In some aspects, in the first embodiment of the present disclosure, the time slot index of a time slot may refer to the physical time slot index of the time slot in a frame number period.

[0260] In some aspects, in the first embodiment of the present disclosure, the time slot index of a time slot may refer to the set T corresponding to the time slot. all The value of the element in .

[0261] In some aspects, in the first embodiment of the present disclosure, "Type 1 S-SSB" may be replaced with "Type 1 S-SSB transmission opportunity".

[0262] In some aspects, in the first embodiment of the present disclosure, "Type 2 S-SSB" may be replaced with "Type 2 S-SSB transmission opportunity" or "additional S-SSB transmission opportunity".

[0263] In some aspects, in the first embodiment of the present disclosure, sl-GapOfAdditionalSSSB-Occasion may be replaced with sl-TimeGapAdditionalOccasion, and vice versa.

[0264] In some aspects, in the first embodiment of the present disclosure, sl-NumOfAdditionalSSSBOccasion may be replaced with sl-NumAdditionalOccasionPerSS, and vice versa.

[0265] In some aspects, the first embodiment of the present disclosure may be applicable to operations without shared spectrum channel access.

[0266] In some aspects, the first embodiment of the present disclosure may be applicable to licensed spectrum.

[0267] In some aspects, the first embodiment of the present disclosure may be applicable to operations with shared spectrum channel access.

[0268] In some aspects, the first embodiment of the present disclosure may be applicable to unlicensed spectrum.

[0269] In some aspects, embodiment 1 of the present disclosure may be performed by the physical layer of the UE.

[0270] In some aspects, embodiment 1 of the present disclosure may be performed by a higher layer of the UE.

[0271] Thus, according to the first embodiment, the present disclosure provides a method, wherein, when determining a non-sidelink time slot (s) for a sidelink resource pool in a sidelink bandwidth segment, if two candidate sidelink symbols are not provided for the sidelink bandwidth segment, the first symbol Y of a plurality of consecutive symbols for checking whether it belongs to an uplink symbol is NSL is the sideline start symbol in the sideline bandwidth segment, otherwise the symbol Y NSL This ensures that in either of the two configurations above, each time slot in the sidelink resource pool contains enough sidelink symbols that can be used for PSSCH transmission, thereby ensuring the reliability of sidelink transmission.

[0272] Example 2

[0273] The following combination Figure 2 To illustrate the method executed by the UE in the second embodiment of the present disclosure.

[0274] Figure 2 A flowchart corresponding to a method executed by a UE according to the second embodiment of the present disclosure is shown.

[0275] like Figure 2 As shown, in the second embodiment of the present disclosure, the steps performed by the UE include: step S201 and step S203.

[0276] Specifically, in step S201, the indication information in an S-SSB is determined.

[0277] In some aspects, the S-SSB may be located in a sideband bandwidth segment (e.g., bwp SL2 )middle.

[0278] In some aspects, the indication information may be at least partially composed of a bit sequence (e.g., denoted as a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a1 ...2, a3, a4, a5, a6, a7, a8, a9, a10, a2, a3, 10 , a11 )instruct.

[0279] In some aspects, if the type 1 non-time division multiplexing condition is met, the value of each bit in the bit sequence is set to "1", that is, the a0, the a1, the a2, the a3, the a4, the a5, the a6, the a7, the a8, the a9, the a1 10 , and the a 11 are all set to "1".

[0280] In some aspects, if the type 1 non-time division multiplexing condition is met, the integer value corresponding to the bit sequence is set to 1.

[0281] In some aspects, the type 1 non-time division multiplexing condition may include, at least in part, one or more of the following (for example, the type 1 non-time division multiplexing condition may correspond to a combination of one or more of the following in an "and" or "or" manner):

[0282] The corresponding spectrum (eg, the sideband bandwidth fragment bwp SL2 The spectrum where it is located is also called the sideband bandwidth fragment bwp SL2 The spectrum where the sidecarrier is located is the paired spectrum.

[0283] ● The corresponding spectrum is indicated as supporting (or applicable to) only the PC5 interface, and one or more time division multiplexing related parameters (such as tdd-UL-DL-ConfigurationCommon and / or sl-TDD-Configuration) are not provided for the spectrum.

[0284] In some aspects, if the type 1 non-time division multiplexing condition is not met, the a0 may be related to the TDD configuration. For example, if a higher layer parameter for uplink / downlink TDD configuration (e.g., the sl-TDD-Configuration or the tdd-UL-DL-ConfigurationCommon) provides (or provides and only provides) a "first uplink / downlink mode (pattern)" (e.g., indicated by parameter pattern1), then a0=0; for another example, if the higher layer parameter for uplink / downlink TDD configuration provides the first uplink / downlink mode and a "second uplink / downlink mode" (e.g., indicated by parameter pattern2), then a0=1.

[0285] In some aspects, if the type 1 non-time division multiplexing condition is not met, then for a0=0, a1, a2, a3, and a4 may be determined at least in part based on a time slot configuration period (e.g., denoted as P) in pattern 1. For example, if P=0.5 milliseconds, then a1=0, a2=0, a3=0, and a4=0.

[0286] In some aspects, if the type 1 non-time division multiplexing condition is not met, then for a0=1, the a1, the a2, the a3, and the a4 can be determined at least in part based on the P and the time slot configuration period in the pattern2 (for example, denoted as P2).

[0287] In some aspects, if the type 1 non-time division multiplexing condition is not met, then the a5, the a6, the a7, the a8, the a9, the a 10 , and the a 11 Each of them can correspond to a "sideline time slot number indication" (for example, )'s seventh, sixth, fifth, fourth, third, second, and first least significant bits.

[0288] In some aspects, for a0=0, Can be equal to For a0=1, Can be equal to

[0289] in,

[0290] μ ref 、u slots 、u sym 、u slots，2 , and u sym，2 It can be provided by the higher layer parameters for uplink / downlink TDD configuration. ref It can be a reference SCS configuration (for example, provided by the parameter referenceSubcarrierSpacing), the u slots It can be the number of time slots containing only uplink symbols in the pattern1 (for example, provided by the parameter nrofUplinkSlots in the pattern1), the u sym It can be the number of uplink symbols in the pattern1 (for example, provided by the parameter nrofUplinkSymbols in the pattern1), the u slots，2 is the number of time slots containing only uplink symbols in pattern2 (for example, provided by the parameter nrofUplinkSlots in pattern2), and the u sym，2is the number of uplink symbols in the pattern2 (for example, provided by the parameter nrofUplinkSymbols in the pattern2).

[0291] μ may be the corresponding sideline SCS configuration (e.g., the sideline bandwidth segment bwp SL2 In some aspects, the value of μ may be one of 0, 1, 2, and 3.

[0292] w may represent the granularity of the time slot indication. In some aspects, w may be applicable to the case where a0 = 1. For example, in this case, for μ = 0 (i.e., the corresponding side SCS is 15 kHz), if P = 0.5 ms, P2 = 0.5 ms, and w = 1, then a1 = 0, a2 = 0, a3 = 0, and a4 = 0.

[0293] L may correspond to the number of symbols in a time slot. In some aspects, L may be related to the configuration of a cyclic prefix, for example, if the higher layer parameter cyclicPrefix is ​​configured as "ECP", then L=12, otherwise L=14.

[0294] ● In some aspects, I1 can be based on the u sym , the μ, the μ ref , the L, and a "side row starting symbol index" (for example, denoted as Y) are partially or completely determined. For example, the I1 can be determined according to one of the following items:

[0295] ■If Then the I1 may be equal to 1, otherwise the I1 may be equal to 0.

[0296] ■If Then the I1 may be equal to 1, otherwise the I1 may be equal to 0.

[0297] ■If Then the I1 may be equal to 1, otherwise the I1 may be equal to 0.

[0298] ● In some aspects, I2 can be based on the u sym，2 , the μ, the μ ref , the L, and part or all of the Y. For example, the I2 may be determined according to one of the following:

[0299] ■If Then the I2 may be equal to 1, otherwise the I2 may be equal to 0.

[0300] ■If Then the I2 may be equal to 1, otherwise the I2 may be equal to 0.

[0301] ■If Then the I2 may be equal to 1, otherwise the I2 may be equal to 0.

[0302] In some aspects, Y may be equal to the sideline bandwidth fraction bwp SL2 Related

[0303] In some aspects, if the sideband bandwidth segment bwp SL2 If the type 1 single start symbol condition is met, then Y can be equal to the side bandwidth fragment bwp SL2 Related

[0304] In some aspects, if the sideband bandwidth segment bwp SL2 If the type 1 double start symbol condition is met, then Y can be equal to the side bandwidth fragment bwp SL2 Related

[0305] In addition, in step S203, the S-SSB is transmitted.

[0306] For example, the S-SSB is transmitted in the time and frequency resources determined for the S-SSB.

[0307] In some aspects, in the second embodiment of the present disclosure, “uplink / downlink” may be replaced with “downlink / uplink” and vice versa.

[0308] In some aspects, the second embodiment of the present disclosure may be applicable to operations without shared spectrum channel access.

[0309] In some aspects, the second embodiment of the present disclosure may be applicable to licensed spectrum.

[0310] In some aspects, the second embodiment of the present disclosure may be applicable to operations with shared spectrum channel access.

[0311] In some aspects, the second embodiment of the present disclosure may be applicable to unlicensed spectrum.

[0312] In some aspects, the second embodiment of the present disclosure may be performed by the physical layer of the UE.

[0313] In some aspects, the second embodiment of the present disclosure may be performed by a higher layer of the UE.

[0314] Thus, according to the second embodiment, the present disclosure provides a method, wherein, when determining an indication of the number of side slots carried by an S-SSB transmission in a side bandwidth segment, if two candidate side symbols are not provided for the side bandwidth segment, a method is used to check whether the first symbol Y of multiple consecutive symbols belonging to uplink symbols is the side start symbol in the side bandwidth segment; otherwise, the symbol Y is the first candidate side symbol of the two provided candidate side symbols. This ensures that, in either of the above two configurations, all side slots indicated by the side slot number indication contain enough side symbols that can be used for PSSCH transmission, thereby ensuring the reliability of side transmission.

[0315] Modifications

[0316] Next, use Figure 3 A user equipment as a variation example is described below, which can execute the method executed by the user equipment described in detail above in the present disclosure.

[0317] Figure 3 is a block diagram showing a user equipment involved in the present disclosure.

[0318] like Figure 3 As shown, the user equipment UE30 includes a processor 301 and a memory 302. The processor 301 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The memory 302 may include, for example, a volatile memory (such as a random access memory (RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory. The memory 302 stores program instructions. When executed by the processor 301, the instructions may execute the above-mentioned method performed by the user equipment as described in detail in this disclosure.

[0319] 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.

[0320] 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.

[0321] 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.

[0322] 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.

[0323] 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.

[0324] 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.

[0325] 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: Determining resources of a sidelink resource pool in a sidelink bandwidth segment, comprising determining a subset of a first time slot set consisting of all time slots in a frame number period as a second time slot set allocated to the sidelink resource pool; and One or more side transmissions are performed in the side resource pool; wherein, If in one of the first time slots set, from symbol Y NSL At least one of the first several consecutive symbols is not semi-statically configured as an uplink symbol, then the time slot is determined to be a time slot that does not belong to the second time slot set, wherein if two candidate sidelink symbols are not provided for the sidelink bandwidth segment, then the symbol Y NSL The symbol index is provided by the first parameter sl-StartSymbol, otherwise the symbol Y NSL It is the first of the two candidate side symbols, and its symbol index is provided by a second parameter sl-StartingSymbolFirst.

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

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