WO2024094182A1 - 由用户设备执行的方法以及用户设备 - Google Patents

由用户设备执行的方法以及用户设备 Download PDF

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Publication number
WO2024094182A1
WO2024094182A1 PCT/CN2023/129661 CN2023129661W WO2024094182A1 WO 2024094182 A1 WO2024094182 A1 WO 2024094182A1 CN 2023129661 W CN2023129661 W CN 2023129661W WO 2024094182 A1 WO2024094182 A1 WO 2024094182A1
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Prior art keywords
resource
prs
priority
sci
time slot
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PCT/CN2023/129661
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English (en)
French (fr)
Inventor
罗超
赵毅男
刘仁茂
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夏普株式会社
罗超
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Publication of WO2024094182A1 publication Critical patent/WO2024094182A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient

Definitions

  • the present invention relates to a method executed by a user equipment and the user equipment.
  • Wireless communication can be performed on a licensed spectrum and/or an unlicensed spectrum.
  • An example of a wireless communication system is a system standardized by 3GPP (3rd Generation Partnership Project), such as a 4G system or its evolved system based on LTE (Long-Term Evolution) wireless access technology, and a 5G system or its evolved system based on NR (New Radio) wireless access technology.
  • 3GPP 3rd Generation Partnership Project
  • examples of communication nodes may include UE (User Equipment) and base stations (e.g., eNB, also known as gNB).
  • the radio link (radio link) from the base station to the UE may be called a downlink (DL), the radio link from the UE to the base station may be called an uplink (UL), and the radio link between UEs may be called a sidelink (SL).
  • the interface for wireless transmission and/or reception between the base station and the 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.
  • One or more positioning technologies may be supported in a wireless communication system.
  • the UE's location information may be calculated or estimated based on measurements of downlink signals, uplink signals, and/or sidelink signals.
  • Communications on licensed spectrum and/or unlicensed spectrum, and/or positioning of UE on licensed spectrum and/or unlicensed spectrum require solving a series of problems, such as channel access mechanism; structure of physical layer channels and/or signals; physical layer control information and/or signaling processes (such as synchronization processes, such as feedback and/or determination mechanisms); higher layer control information and/or signaling processes; allocation and/or management of resources; and coexistence between different systems.
  • Non-patent literature 1 RP-152293, New WI proposal: Support for V2V services based on LTE sidelink, 3GPP TSG RAN Meeting #70
  • Non-patent literature 2 RP-170798, New WID on 3GPP V2X Phase 2, 3GPP TSG RAN Meeting #75
  • Non-patent literature 3 RP-170855, New WID on New Radio Access Technology, 3GPP TSG RAN Meeting #75
  • Non-patent literature 4 RP-190766, New WID on 5G V2X with NR sidelink, 3GPP TSG RAN Meeting #83
  • Non-patent literature 5 RP-201385, WID revision: NR sidelink enhancement, 3GPP TSG RAN Meeting #88e
  • Non-patent literature 6 RP-221938, Revised WID on NR sidelink evolution, 3GPP TSG RAN Meeting #97e
  • Non-patent document 7 RP-210903, Revised WID on NR Positioning Enhancements, 3GPP TSG RAN Meeting #91e
  • Non-patent literature 8 RP-222616, Revised SID on Study on expanded and improved NR positioning, 3GPP TSG RAN Meeting #97e
  • the present invention provides a method performed by a user equipment and a user equipment, which derives a priority value indicated in the SCI according to the priority of the MAC PDU carried in the PSSCH and the priority of one or more SL-PRS multiplexed in the PSSCH. This allows the priority value indicated in the SCI to better reflect the priority processing method expected by the higher layer protocol.
  • a method performed by a user equipment which is characterized by comprising: determining the content of an SCI, wherein the value of a priority field in the SCI is equal to the smaller of a first priority value and a second priority value, the first priority value being the priority value of a MAC PDU carried by a PSSCH associated with a PSCCH carrying the SCI, the second priority value being the priority value of a SL-PRS multiplexed in the PSSCH, and transmitting the SCI.
  • a user equipment comprising: a processor; and a memory storing instructions, wherein the instructions execute the above method when executed by the processor.
  • the present invention provides a method for deriving a priority value indicated in the SCI based on the priority of the MAC PDU carried in the PSSCH and the priority of one or more SL-PRS multiplexed in the PSSCH. This allows the priority value indicated in the SCI to better reflect the priority handling method expected by the higher layer protocol.
  • FIG. 1 shows a flowchart corresponding to a method executed by a user equipment according to the first embodiment of the present invention.
  • FIG. 2 shows a flowchart corresponding to a method executed by a user equipment according to the second embodiment of the present invention.
  • FIG3 shows a flowchart corresponding to a method executed by a user equipment according to Embodiment 3 of the present invention.
  • FIG. 4 shows a flowchart corresponding to a method executed by a user equipment according to a fourth embodiment of the present invention.
  • FIG5 shows a flowchart corresponding to a method executed by a user equipment according to a fifth embodiment of the present invention.
  • FIG6 shows a block diagram of a user equipment involved in the present invention.
  • the following uses the 5G (or NR, or 5G NR) wireless communication system specification formulated by 3GPP and its subsequent evolutionary versions (e.g., 5G Advanced) as an example application environment to specifically describe multiple implementations of the present invention.
  • 5G or NR, or 5G NR
  • 5G Advanced e.g., 5G Advanced
  • the present invention does not The present invention is not limited to the following implementation modes, but can be applied to more other wireless communication systems, such as wireless communication systems after 5G, and 4G mobile communication systems before 5G or their evolved systems such as LTE, LTE-Advanced, LTE-Advanced Pro, etc.
  • the terms given in the present invention may be named differently in different wireless communication systems, but the present invention adopts unified terms, which can be replaced by terms used in the corresponding system when applied to a specific system.
  • ⁇ A “node” (or “communication node”) can be a UE, or a network node (such as a base station or a positioning server).
  • a “base station” can be an eNB (E-UTRAN NodeB, E-UTRAN Node B,
  • E-UTRAN stands for Evolved Universal Terrestrial Radio Access Network
  • a gNB a node that provides NR user plane and control plane protocol termination to UE and is connected to the 5G core network through the NG interface
  • an ng-eNB a node that provides E-UTRA user plane and control plane protocol termination to UE and is connected to the 5G core network through the NG interface
  • E-UTRA stands for Evolved Universal Terrestrial Radio Access
  • ⁇ “Positioning Server” may refer to E-SMLC (Enhanced Serving Mobile Location Centre), or SLP (SUPL Location Platform, where SUPL refers to Secure User Plane Location), or LMF (Location Management Function), or another node that implements similar functions.
  • E-SMLC Enhanced Serving Mobile Location Centre
  • SLP SUPL Location Platform, where SUPL refers to Secure User Plane Location
  • LMF Location Management Function
  • “Higher layer(s)” may refer to one or more protocol layers or protocol sublayers above a reference protocol layer or reference protocol sublayer in a specific protocol stack.
  • the “higher layer” may refer to a MAC (Medium Access Control) layer, and/or an RLC (Radio Link Control) layer, and/or a PDCP (Packet Data Convergence Protocol) layer, and/or a PC5 RRC (Radio Resource Control) layer, and/or a PC5-S layer, and/or an RRC layer, and/or other protocol layers or protocol sublayers.
  • the reference protocol layer or reference protocol sublayer is a physical layer. Where no ambiguity is caused, the “higher layer” may also be referred to as the “upper layer”.
  • ⁇ “Configure” may refer to a first protocol layer (eg, RRC layer) entity providing configuration information to a second protocol layer (eg, physical layer) entity in a communication node (eg, UE).
  • RRC layer e.g. RRC layer
  • second protocol layer e.g. physical layer
  • ⁇ “Configuration” may refer to a first communication node (e.g., a base station) providing configuration information to a second communication node (e.g., a UE) (e.g., RRC signaling transmitted from a base station to a UE, including the configuration information; or PC5-RRC signaling transmitted from UE-A to UE-B, including the configuration information).
  • “Configuration” may additionally include, in the second communication node, a first protocol layer (e.g., RRC layer) entity providing the configuration information received from the first communication node to a second protocol layer (e.g., physical layer) entity.
  • a first protocol layer e.g., RRC layer
  • a second protocol layer e.g., physical layer
  • Pre-configuration can refer to pre-setting the corresponding configuration information to a specific storage location in a communication node (such as a UE), or storing the corresponding configuration information in a specific storage location in a communication node (such as a UE). Preset in a specific storage location accessible by the UE.
  • ⁇ “Configuration” can mean “configure or pre-configure”.
  • ⁇ “Number” may refer to “total number”.
  • “the number of sub-channels in a resource pool” may refer to the total number of sub-channels in the resource pool.
  • ⁇ “Symbol” may refer to OFDM (Orthogonal Frequency Division Multiplexing) symbol.
  • ⁇ It can indicate the number of time slots in each subframe.
  • ⁇ A resource can correspond to one or more of the following:
  • One or more parameters in the time domain for example, the starting symbol of the resource; another example, the starting time slot of the resource; another example, the number of symbols occupied by the resource; another example, the number of time slots occupied by the resource.
  • the starting subchannel of the source for example, the starting RB (resource block) of the resource; for example, the starting subcarrier of the resource; for example, the number of subchannels occupied by the resource; for example, the number of RBs occupied by the resource; for example, the number of subcarriers occupied by the resource.
  • ⁇ One or more parameters in the code-domain For example, a cyclic shift value or a corresponding cyclic shift index corresponding to the resource; or another example, a cyclic shift pair value or a corresponding cyclic shift pair index corresponding to the resource.
  • the layer corresponding to the resource may refer to a MIMO (Multiple Input Multiple Output) layer.
  • MIMO Multiple Input Multiple Output
  • a resource corresponds to one or more parameters in the time domain (eg, symbol) and one or more parameters in the frequency domain (eg, RB), the resource may be referred to as a "time-frequency resource”.
  • ⁇ A "layer” may refer to one of the one or more layers to which a TB (Transport Block) is mapped in spatial multiplexing.
  • the mapping may also be considered as the mapping of the codeword corresponding to the TB to the one or more layers.
  • ⁇ “RB” may refer to PRB (physical resource block), VRB (virtual resource block), CRB (common resource block), or IRB (Interlaced Resource Block).
  • Number and index can be interchanged.
  • the number of an RB can also be called the index of the RB.
  • “numbering an RB as 0” can also be expressed as “indexing an RB as 0”.
  • ⁇ The numbering of elements in a sequence (or array, or list, or ordered set, etc.) can start from 0.
  • the first RB of an RB Set can be called RB 0 of the RB Set.
  • ⁇ An object e.g., a subcarrier, a time slot, a cyclic shift, etc.
  • ⁇ An object can be represented by its index, e.g., a CRB numbered 0 can be called CRB 0.
  • the number of the object may be one or more.
  • the “transmission(s)” may correspond to one transmission or multiple transmissions.
  • ⁇ ( x1 , x2 ) may represent an offset between x1 and x2 , where x1 and x2 may be two comparable parameters (or variables ), or two possible values of a parameter (or variable) (for example, x1 and x2 may be two time slots, or two subframes, or two frames, or two subcarriers, or two RBs, or two subchannels, etc.).
  • ⁇ (x 1 , x 2 ) can be equal to x 2 ⁇ x 1 .
  • ⁇ (x 1 , x 2 ) can be equal to
  • ⁇ “Offset between x 1 and x 2 ” can also be called offset of x 2 with respect to x 1 (offset of x 2 with respect to x 1 , or offset of x 2 relative to x 1 ).
  • the offset between x 1 and x 2 can also be called the offset from x 1 to x 2 (offset from x 1 to x 2 ).
  • x 1 SUBTRACT(x 2 , D).
  • the offset between two subcarriers may be the offset between the center frequencies of the two subcarriers.
  • ⁇ Modulo operation can be defined as r ⁇ a mod N, where
  • ⁇ r is the remainder.
  • ⁇ a N ⁇ q+r,where q can be called the integer quotient of a and N.
  • ⁇ “Resource pool” refers to the SL resource pool.
  • SCI Segment Control Information
  • SCI can refer to one-stage (or “single-stage”) SCI or two-stage (two-stage) SCI.
  • SCI can refer to the first-stage SCI ( 1st -stage SCI) and/or the second-stage SCI ( 2nd -stage SCI).
  • SL time slot may refer to a time slot configured or pre-configured with SL resources.
  • the "SL resources” may include or exclude resources for specific purposes, wherein the “resources for specific purposes” may be resources used for synchronization procedures, such as resources used to transmit S-SS/PSBCH (S-SS/Physical Sidelink Broadcast CHannel, or Sidelink-Synchronization Signal/Physical Sidelink Broadcast CHannel) blocks.
  • S-SS/PSBCH S-SS/Physical Sidelink Broadcast CHannel, or Sidelink-Synchronization Signal/Physical Sidelink Broadcast CHannel
  • An S-SS/PSBCH block may also be called an S-SSB.
  • ⁇ A "physical time slot” may refer to a time slot belonging to a physical time slot set, wherein the physical time slot set may be all time slots in a continuous period of time (for example, a frame period with a duration of 1024 frames); the physical time slots in the physical time slot set may be numbered 0, 1, ... in chronological order.
  • ⁇ A "logical time slot” may refer to a time slot in a time slot set belonging to a resource pool, wherein the time slot set may be all time slots belonging to the resource pool in a continuous period of time (for example, 1024 frames); the logical time slots in the time slot set may be numbered 0, 1, ... in chronological order.
  • ⁇ A "logical time slot” may refer to a time slot that can be configured as a set of time slots belonging to a resource pool.
  • SL time slot may refer to a time slot in a set of time slots belonging to a resource pool.
  • SL time slot may refer to a time slot that may be configured as a set of time slots belonging to a resource pool.
  • the set of SL symbols in an SL slot can be written as in Respectively represent the index of the corresponding symbol in the time slot, where in is the index of the first SL symbol in the slot (e.g. configured by parameter sl-StartSymbol), It is the number of SL symbols in the time slot (for example, configured by parameter sl-LengthSymbols).
  • PSSCH Physical Sidelink Shared Channel
  • PSCCH Physical Sidelink Control Channel
  • a "frame” (frame, or "radio frame”) can be a system frame or a direct frame.
  • Each frame in a frame number period can correspond to a unique frame number, for example, 0, 1, ..., 1023 in chronological order.
  • the frame number of a system frame can be called a SFN (system frame number); for example, the frame number of a direct frame can be called a DFN (direct frame number).
  • a frame period can be called an SFN period; for a direct frame, a frame period can be called a DFN cycle.
  • Each subframe may include time slots, for example, The index of a time slot in a subframe can be recorded as The index of a time slot in a frame can be written as in, can be equal to 10 ⁇ 2 ⁇ .
  • the time slot index in a frame number cycle can be recorded as in Can be equal to (e.g., 1024 ⁇ (10 ⁇ 2 ⁇ )).
  • ⁇ “Target UE” can refer to the UE that is being located (or called “the device being located”).
  • ⁇ “Anchor UE” may refer to the UE that provides support for the positioning of the target UE (or may be called “device that provides support for the positioning of the target UE”).
  • ⁇ A SL ID (sidelink identity) can be a layer 1 SL ID or a layer 2 SL ID.
  • ⁇ A priority level can correspond to a priority value.
  • one priority level can correspond to a priority value of 0, and another priority level can correspond to a priority value of 1.
  • ⁇ A priority level may correspond to a first priority value in a first protocol layer and to a second priority value in a second protocol layer, wherein the first priority value and the second priority value may be equal or different.
  • priority values 0, 1, ..., 7 of the physical layer may correspond to 1, 2, ..., 8 of a higher layer, respectively.
  • the relationship between the priority order and the corresponding priority value can be: As the priority value increases, the priority (or "priority order") decreases. For example, if the priority values corresponding to the priorities associated with the first SL transmission and the second SL transmission are 0 and 1 respectively, the priority of the first SL transmission is higher than the priority of the second SL transmission.
  • the relationship between the priority order and the corresponding priority value may be: as the priority value increases, the priority (or referred to as "priority order") increases. For example, if the priority values corresponding to the priorities associated with the first SL transmission and the second SL transmission are 0 and 1 respectively, the priority of the first SL transmission is lower than the priority of the second SL transmission.
  • the reference signal related to positioning on the SL may be called SL-PRS (Sidelink Positioning Reference Signal).
  • the frequency resources used for the SL-PRS may be configured in a resource pool, wherein the frequency resources used for the SL-PRS may correspond to part of the RBs or all of the RBs in the resource pool.
  • the time domain and/or frequency domain and/or code domain and/or spatial domain resources corresponding to an SL-PRS transmission may be referred to as a "basic SL-PRS resource”.
  • One "SL-PRS resource” may correspond to one basic SL-PRS resource, or several (eg, finite or infinite) basic SL-PRS resources, wherein the several basic SL-PRS resources may appear periodically or non-periodically.
  • the basic SL-PRS resources can be multiplexed in a "SL-PRS resource grid", where the SL-PRS resource grid can correspond to Symbols (such as consecutive symbols) and in the frequency domain RBs (e.g. consecutive RBs), Can be an integer greater than or equal to 1, Can be an integer greater than or equal to 1, can be an integer greater than or equal to 1, Any of can be a predefined or configured or preconfigured value, or determined according to one or more predefined or configured or preconfigured values.
  • a "SL-PRS Resource Grid” symbols can be in the same time slot, accordingly, the The numbers of the symbols in the time slot can be recorded as Among them, the can be a predefined or configured or preconfigured value, or determined according to one or more predefined or configured or preconfigured values.
  • an SL-PRS resource grid may additionally contain a symbol that can be used for AGC (Automatic Gain Control, automatic gain control) (e.g. symbol ), and/or a gap symbol that can be used for transmission and reception transitions (e.g. symbol ).symbol Can be in the same time slot.
  • AGC Automatic Gain Control, automatic gain control
  • a gap symbol that can be used for transmission and reception transitions
  • a SL-PRS resource grid (or, ) symbols may correspond to a "basic SL-PRS occasion" (or basic SL-PRS transmission occasion) in the time domain.
  • a time slot containing one or more basic SL-PRS occasions may be called an "SL-PRS time slot”.
  • a "SL-PRS opportunity" may correspond to a basic SL-PRS opportunity, or a SL-PRS time slot, or several (for example, a finite number or an infinite number) basic SL-PRS opportunities or SL-PRS time slots, wherein the several basic SL-PRS opportunities or SL-PRS time slots may appear periodically or non-periodically.
  • the RB numbers (such as CRB numbers and PRB numbers) of the RBs can be recorded as Among them, the It can be a predefined or configured or preconfigured value, or determined according to one or more predefined or configured or preconfigured values.
  • the resources corresponding to an SL-PRS resource grid may be in a resource pool, for example, (or, ) symbol is a time slot in the resource pool, and the SL-PRS resource grid RBs are within the bandwidth of the resource pool.
  • the bandwidth corresponding to each RB may be referred to as “SL-PRS bandwidth.”
  • the SL-PRS bandwidth may correspond to a portion of the bandwidth of the resource pool, or the entire bandwidth.
  • the set of REs (Resource Element) occupied by each basic SL-PRS resource can correspond to a unique "size" of A comb-like pattern, such as Specifically, for example, and can correspond to a Comb-2 pattern, where
  • the first basic SL-PRS resource occupies subcarriers 0, 2, 4, 6, 8, 10 in each RB in the SL-PRS bandwidth
  • the second basic SL-PRS resource occupies subcarriers 1, 3, 5, 7, 9, 11 in each RB in the SL-PRS bandwidth.
  • the first basic SL-PRS resource occupies subcarriers 1, 3, 5, 7, 9, 11 in each RB in the SL-PRS bandwidth
  • the second basic SL-PRS resource occupies subcarriers 0, 2, 4, 6, 8, 10 in each RB in the SL-PRS bandwidth.
  • Each basic SL-PRS resource in the symbol The minimum number of subcarriers in the corresponding RB The subcarrier number may be referred to as the "SL-PRS RE offset" of the basic SL-PRS resource. and
  • the "SL-PRS RE offset" of the first basic SL-PRS resource is 0, and the "SL-PRS RE offset" of the second basic SL-PRS resource is 1.
  • the basic SL-PRS resources can be indexed in ascending order of "SL-PRS RE offset", for example, basic SL-PRS resource a The "SL-PRS RE offset" is but
  • An SL-PRS transmission may be multiplexed with another SL transmission (e.g., a PSCCH transmission and/or a PSSCH transmission carrying application layer data, and/or a corresponding PSFCH (Physical Sidelink Feedback Channel) transmission) in the same time-frequency resource.
  • an SL-PRS resource may correspond to one or more REs in each of one or more symbols in a timeslot in which a PSCCH/PSSCH transmission is located.
  • the set of REs corresponding to an SL-PRS transmission may correspond to a comb pattern in an SL-PRS resource grid, or may not correspond to any comb pattern in the SL-PRS resource grid.
  • a resource pool dedicated to transmitting SL-PRS and/or corresponding control information and/or corresponding measurement report and/or other SL transmissions for positioning purposes can be called a "positioning resource pool”, or a “dedicated SL-PRS resource pool”, or a “dedicated SL positioning resource pool”, or a "SL positioning resource pool”.
  • a resource pool dedicated to SL transmission for communication purposes (such as PSCCH transmission and/or PSSCH transmission carrying application layer data, and/or corresponding PSFCH transmission) can be called a "communication resource pool”.
  • a SL transmission for positioning purposes can also be used for SL transmission for communication purposes (such as PSCCH transmission and/or PSSCH transmission carrying application layer data, and/or corresponding PSFCH transmission) can be called a "shared resource pool”.
  • a resource pool can be configured or pre-configured as a "location resource pool”, or a "communication resource pool”, or a "shared resource pool”.
  • a resource pool (e.g., denoted by e) has a set of time slots (e.g., denoted by ) may be a set of all time slots allocated to the resource pool e within a predefined resource pool definition period (e.g., an SFN period or a DFN period).
  • All time slots that meet the time domain condition of the first resource pool can be excluded from the set T all , and all remaining time slots are combined into a first time slot subset (for example, denoted as ), and then the first time slot subset All time slots that meet the time domain conditions of the second resource pool in the first time slot subset
  • the order in which the second time slot subset is formed, then the time slot set of the resource pool e may be equal to the second subset of time slots.
  • the first resource pool time domain condition may include one or more of the following (for example, any combination in the manner of “and” or “or”):
  • the time slot t is an "S-SSB time slot", wherein an S-SSB time slot may be a time slot in which an S-SSB is configured.
  • the number of S-SSB time slots may be denoted as N S-SSB .
  • the time slot t is a "non-SL time slot", where a non-SL time slot can be a symbol in which symbol and Symbol middle There is at least one time slot that is not semi-statically configured as a UL symbol.
  • the number of non-SL time slots may be denoted as N nonSL .
  • the time slot t is a "reserved time slot", where a “reserved time slot” can be defined as follows:
  • the bitmap can be recorded as
  • the bitmap may be configured by the parameter sl-TimeResource.
  • the first subset of time slots The number of time slots in It can be equal to 10240 ⁇ 2 ⁇ - NSS-SSB - NnonSL - Nreserved .
  • the second resource pool time domain condition may include:
  • k′ k mod L bitmap .
  • the time slot set of the resource pool e can be recorded as Among them, Time slot The subscript of can represent its time slot index in the resource pool e.
  • the set SL-PRS resources are configured in some or all time slots in the resource pool e (for example, when the resource pool e is a location resource pool), the set SL-PRS resources are configured in some or all time slots in the
  • the set of SL-PRS time slots in can be divided into subsets (for example, respectively ),in, can be an integer greater than or equal to 1,
  • the intersection of any two subsets in the set can be an empty set.
  • right Time Slot Collection may correspond to a "SL-PRS resource set" (for example, this may indicate that the "SL-PRS resource set” is the set of time slots The set of SL-PRS resources in all time slots in ).
  • the time slot set It may correspond to one or more of the following parameters (each of which may be determined in a predefined or configured or preconfigured manner):
  • a resource set cycle (e.g., denoted as ).
  • a resource set slot offset (e.g., denoted by ).
  • a resource duplication factor (e.g. ).
  • a resource time interval (e.g., ).
  • the first mute option may correspond to a mute repetition factor (e.g., ) and a silent bitmap (for example, in is the mute bitmap length).
  • the second mute option may correspond to a mute bitmap (e.g., in is the mute bitmap length).
  • ⁇ resource slot offsets (for example, respectively denoted as ).in, Can be an integer greater than or equal to 1.
  • the first SL-PRS resource set definition condition may include one or more of the following (for example, any combination in the manner of “and” or “or”):
  • No mute option is configured.
  • the "first mute option” and the "second mute option” are not configured.
  • the "first mute option” has been configured, and the mute bitmap in the "first mute option” The time slot corresponding to The bit is set (or The "second mute option” has been configured, and the mute bitmap in the "second mute option” The time slot corresponding to The bit is set (or reset).
  • the granularity of the "mute” operation can be a SL-PRS resource set.
  • the mute bitmap Each bit in may correspond to an SL-PRS resource set in one or more (e.g., All time slots belonging to the SL-PRS resource set in a) consecutive resource set period.
  • the mute bitmap in the "First Mute Option" The time slot corresponding to The bits can be Among them, z 1 can be equal to
  • the granularity of the "mute” operation can be one SL-PRS time slot.
  • Each bit in may correspond to a "repetition" of an SL-PRS resource set in a resource set period.
  • the mute bitmap Each bit in can correspond to v in A value in .
  • the mute bitmap in the "Second Mute Option" The time slot corresponding to The bits can be Among them, z2 can be equal to
  • the "first mute option" and/or the “second mute option” may also be configured in the resource pool e. Accordingly,
  • the “first mute option” and/or the “second mute option” may also be configured in the corresponding SL BWP, and accordingly, the “first mute option” and/or the “second mute option” may be applied to all applicable resource pools in the SL BWP (for example, all resource pools configured with SL-PRS resources).
  • the "first mute option" and/or the “second mute option” can also be configured in the corresponding SL carrier, and accordingly, the "first mute option” and/or the “second mute option” can be applied to all applicable resource pools in the SL carrier (for example, all resource pools configured with SL-PRS resources).
  • resource allocation and/or resource reservation and/or resource selection and/or resource reselection related to SL-PRS the corresponding resource allocation and/or resource reservation and/or resource selection and/or resource reselection may be performed according to a certain "SL-PRS resource granularity".
  • resource indexes For example, in the information related to resource allocation and/or reservation (e.g., SCI), it may be indicated resource indexes, where can be an integer greater than or equal to 1; accordingly, if the SL-PRS resource granularity corresponds to a basic SL-PRS resource, then Resource index corresponding to basic SL-PRS resources; if the SL-PRS resource granularity corresponds to an SL-PRS resource grid, then the Resource index corresponding to A SL-PRS resource grid.
  • the SL-PRS resource granularity may be defined in the time domain and/or frequency domain and/or code domain and/or spatial domain.
  • a parameter (or field) representing the SL-PRS resource granularity may indicate one of the following:
  • One or more basic SL-PRS resources (e.g., one or more basic SL-PRS resources).
  • One or more SL-PRS resource grids (eg, one or more SL-PRS resource grids in the same time slot).
  • One or more basic SL-PRS opportunities (eg, one or more basic SL-PRS opportunities in the same time slot).
  • the parameter (or field) representing the SL-PRS resource granularity may be determined in a predefined or configured or preconfigured manner, or indicated in an SCI or DCI or other signaling.
  • FIG. 1 shows a flowchart corresponding to a method executed by a UE according to the first embodiment of the present invention.
  • the steps performed by the UE include: step S101 and step S103 .
  • step S101 the content of SCI (for example, recorded as SCI 0 , and correspondingly, the resource pool used for transmitting and/or receiving the SCI 0 can be recorded as e 0 ) is determined.
  • the SCI 0 may be a one-stage SCI or a two-stage SCI.
  • the SCI 0 is a one-stage SCI.
  • the resource pool e 0 is a shared resource pool
  • the SCI 0 is a two-stage SCI.
  • the SCI 0 is a two-stage SCI (i.e., it has nothing to do with the type of the resource pool e 0 ).
  • Part or all of the SCI 0 may be carried by a PSCCH (eg, denoted as PSCCH 0 ).
  • PSCCH eg, denoted as PSCCH 0
  • the SCI 0 (or the first stage SCI in the SCI 0 ) may be considered to be associated with the PSCCH 0 .
  • Part or all of the SCI 0 may be multiplexed in resources allocated for the PSSCH (eg, recorded as PSSCH 0 ) associated with (or scheduled by) the PSCCH 0 .
  • the SCI 0 may indicate N RES resources (e.g., time-frequency resources), where N RES may be an integer greater than or equal to 1; N RES may be determined according to one or more predefined and/or configured and/or preconfigured parameters; N RES may be indicated in the SCI 0.
  • the set corresponding to the N RES resources may be recorded as
  • the transmission multiplexed on the resource r0 may include one or more of the following:
  • SL-PRS can be an integer greater than or equal to 1, or an integer greater than or equal to 0 (for example Another example: ); It can be determined according to one or more predefined and/or configured and/or preconfigured parameters, or according to one or more fields in the SCI0; Said The SL-PRS can be expressed as and
  • the transmission(s) actually performed on the resource r 0 may be determined by a predefined or configured or preconfigured manner, or indicated in the SCI 0 .
  • each logical channel (if any) can be associated with a priority
  • each MAC CE (Control Element) (if any) can be associated with a priority.
  • Priority It can be defined as the highest priority (or the lowest priority) among all logical channels (if any) and/or all MAC CEs (if any) in the MAC PDU, or as the highest priority (or the lowest priority) among all logical channels (if any) and/or one MAC CE (if any) in the MAC PDU.
  • the priority associated with the MAC PDU can be equal to Said
  • the priority of the service (eg, data transmission service) carried by the MAC PDU may be represented.
  • Said Said and (For example, if the transmission actually performed on the resource r 0 includes the Said and ) can be associated with a priority level (for example, respectively and ).in,
  • ⁇ Said and Part or all of may be indicated by a higher layer of the UE.
  • ⁇ It may be indicated by a higher layer of the UE.
  • the SCI 0 may include one or more priority-related fields, wherein each of the fields may indicate a priority (e.g., the value of the field is equal to the priority value corresponding to the priority).
  • the SCI 0 may include a field (e.g., called "Priority 1") for indicating the priority of the
  • the SCI 0 may include a field (e.g., called "priority 2") for indicating the
  • the SCI 0 may include a field (e.g., called "priority 3") for indicating the
  • the SCI 0 may include a field (e.g., called "priority 4") for indicating the
  • the SCI 0 may include a field (eg, called "priority"), the value indicated by which may be related to the transmission actually performed on the resource r0 .
  • a field eg, called "priority”
  • the "Priority" field can be defined in one of the following ways:
  • the "Priority" field is used to indicate the Said Said All logical channels in the MAC PDU (if any) ) and the highest priority among all MAC CEs (if any).
  • the "Priority" field is used to indicate the Said Said The highest priority among all logical channels (if any) and one MAC CE (if any) in the MAC PDU.
  • the "Priority" field is used to indicate the Said Said The lowest priority among all logical channels (if any) and all MAC CEs (if any) in the MAC PDU.
  • the "Priority” field is used to indicate the Said Said The lowest priority among all logical channels (if any) and one MAC CE (if any) in the MAC PDU.
  • the "Priority" field may be defined in one of the following ways:
  • the transmission actually performed on the resource r 0 includes the PSSCH 0 and does not include the Said and
  • the "Priority" field is used to indicate the
  • step S103 the SCI is transmitted.
  • the PSCCH 0 and/or the PSSCH 0 carrying the SCI 0 is transmitted in the resource pool e 0 , or, additionally, the Said and
  • the present invention provides a method for deriving the priority value indicated in the SCI according to the priority of the MAC PDU carried in the PSSCH and the priority of one or more SL-PRSs multiplexed in the PSSCH. This allows the priority value indicated in the SCI to better reflect the priority processing method expected by the higher layer protocol.
  • FIG. 2 shows a flowchart corresponding to a method executed by a UE according to a second embodiment of the present invention.
  • the steps performed by the UE include: step S201 and step S203 .
  • the UE may be denoted as UE-A.
  • the UE-A may be an anchor UE.
  • step S201 one or more measurements related to SL positioning are performed.
  • the one or more measurements related to SL positioning can be used to locate a target UE (for example, denoted as UE-B).
  • UE-B a target UE
  • the one or more measurements related to SL positioning may be triggered by the UE-B, or by another entity (eg, a base station; or, for example, a positioning server).
  • another entity eg, a base station; or, for example, a positioning server.
  • the one or more measurements related to SL positioning may correspond to one or more measurement quantities.
  • the one or more SL positioning related measurements may include The measurement of SL-PRS resources, where Can be an integer greater than or equal to 1 (for example, Said The SL-PRS can be expressed as and
  • Said Said and Part or all of can be transmitted by the UE-B.
  • Said Said and Part or all of the may be transmitted by one or more UEs other than the UE-A and the UE-B.
  • Said Said and can be associated with a priority level (for example, and ). Said and The highest priority and the lowest priority in can be recorded as and Said Said and can correspond to the same priority (for example, ). It can be expressed as Said and The priority of the corresponding positioning service (or positioning session).
  • a measurement report related to SL positioning is transmitted.
  • a measurement report corresponding to the one or more measurements related to SL positioning is transmitted.
  • the measurement report may be associated with a priority (e.g., ).
  • a priority e.g., a priority
  • the The corresponding priority values wherein the "one or more priority values" may include the Said and The priority values corresponding to some or all of The corresponding priority value, and/or Specifically, for example, The corresponding priority value can be equal to the priority value corresponding to one of the following:
  • the measurement report may be carried by a PSCCH and/or a PSSCH.
  • the measurement report may be included in a physical layer message or a part of the physical layer message (e.g., SCI) carried in the PSCCH and/or the PSSCH, and accordingly, the priority of the physical layer message or the part of the physical layer message may be determined according to the priority of the physical layer message including the PSCCH and/or the PSSCH.
  • SCI physical layer message
  • the measurement report may be included in a higher layer message or a portion of the higher layer message (e.g., a MAC PDU, or a MAC CE in a MAC PDU; for another example, an RRC message; for another example, a PC5-RRC message; for another example, an SLPP (Sidelink Positioning Protocol) message) carried in the PSCCH and/or the PSSCH.
  • a higher layer message or a portion of the higher layer message e.g., a MAC PDU, or a MAC CE in a MAC PDU; for another example, an RRC message; for another example, a PC5-RRC message; for another example, an SLPP (Sidelink Positioning Protocol) message) carried in the PSCCH and/or the PSSCH.
  • the priority of the higher layer message or a portion of the higher layer message may be determined according to the information including the information.
  • the measurement report is determined by one or more parameters including (for example, the measurement report is included in a MAC CE
  • the present invention provides a method for determining the priority of the corresponding measurement report according to the highest priority among the priorities associated with the measured (one or more) SL-PRS. This enables the measurement report related to SL positioning to better reflect the priority processing method expected by the higher layer protocol.
  • FIG. 3 shows a flowchart corresponding to a method executed by a UE according to Embodiment 3 of the present invention.
  • the steps performed by the UE include: Step S301 and step S303.
  • a resource subset (for example, denoted as SA,P ) is determined.
  • the resource subset SA,P is determined according to a request triggered by a higher layer (e.g., MAC layer) entity in time slot n.
  • the resource subset SA,P may be used by the higher layer entity to perform SL-PRS resource selection or reselection (e.g., selecting one or more resources from the resource subset SA,P for SL-PRS transmission).
  • Each element (or referred to as a "resource") in the resource subset SA,P may correspond to one or more SL-PRS resources (or one or more basic SL-PRS resources).
  • the higher layer entity may provide one or more parameters, for example, including one or more of the following:
  • a resource pool (for example, denoted as e).
  • the resource pool e may be a positioning resource pool.
  • a priority value (eg, a layer-one priority value, denoted, for example, as P TX ).
  • the SL-PRS resource granularity may be determined in a predefined or configured or preconfigured manner, and accordingly, the higher layer entity does not provide the "SL-PRS resource granularity" when triggering the step S301.
  • the step S301 may include N S301 sub-steps, for example, the sub-steps are recorded in chronological order. Substeps Substeps Wherein N S301 can be an integer greater than or equal to 1.
  • the candidate resource set It may be all resources in the resource pool e that meet the first candidate resource condition, wherein, for a resource r in the resource pool e, the first candidate resource condition may include one or more of the following (for example, any combination in the form of "and” or "or"):
  • the time domain and/or frequency domain and/or code domain and/or spatial domain resources corresponding to the resource r belong to the resource pool e.
  • T 1 may be a predefined or configured or preconfigured value, or a value determined by the UE to satisfy certain conditions
  • T 2 may be a predefined or configured or preconfigured value, or a value determined by the UE to satisfy certain conditions.
  • the time interval [n+T 1 , n+T 2 ] can be called a “resource selection window” or a “selection window”.
  • the resource r complies with the SL-PRS resource granularity.
  • the resource r may be a basic SL-PRS resource in a certain SL-PRS resource grid; for another example, if the "resource granularity" corresponds to a SL-PRS resource grid, the resource r may be a SL-PRS resource grid in a certain time slot.
  • ⁇ SL-PRS can be transmitted on the time domain and/or frequency domain and/or code domain and/or spatial domain resources corresponding to the resource r.
  • the time domain resources corresponding to the SL-PRS configuration of the resource pool e include (one or more) symbols corresponding to the resource r.
  • the time domain and/or frequency domain and/or code domain and/or spatial domain resources corresponding to the resource r are not “muted”.
  • the candidate resource set The time domain resources or frequency domain resources or code domain resources or spatial domain resources corresponding to different elements in may overlap.
  • the candidate resource set There are no two or more elements that are exactly the same.
  • the sub-steps The one or more resource exclusion operations performed in the process may include: if the candidate resource set If a resource r satisfies the first resource exclusion condition, the resource r is removed from the candidate resource set.
  • the first resource exclusion condition may include one or more of the following (for example, any combination of "and” or "or"):
  • the time domain and/or frequency domain and/or code domain and/or spatial domain resources corresponding to the resource r have been “statically sound”.
  • step S303 the resource subset is reported to a higher layer.
  • the present invention provides a method which greatly improves the flexibility of SL-PRS resource configuration, resource selection and resource reselection by configuring the SL-PRS "mute" option and excluding all candidate resources in the "muted" time slots when determining the resource subset for SL-PRS resource selection.
  • FIG. 4 shows a flowchart corresponding to a method executed by a UE according to a fourth embodiment of the present invention.
  • the steps performed by the UE include: step S401 and step S403 .
  • step S401 an SCI (for example, denoted as SCI 0 ) is received.
  • SCI 0 For example, in the time slot of resource pool e 0 Receive the SCI 0 .
  • the SCI 0 may be a one-stage SCI or a two-stage SCI.
  • the SCI 0 is a one-stage SCI.
  • the resource pool e 0 is a shared resource pool
  • the SCI 0 is a two-stage SCI.
  • the SCI 0 is a two-stage SCI (i.e., it has nothing to do with the type of the resource pool e 0 ).
  • Part or all of the SCI 0 may be carried by a PSCCH (for example, denoted as PSCCH 0 ) .
  • PSCCH for example, denoted as PSCCH 0
  • the first stage SCI in the SCI 0 is associated with the PSCCH 0 .
  • Part or all of the SCI 0 may be multiplexed in resources allocated for the PSSCH (eg, recorded as PSSCH 0 ) associated with (or scheduled by) the PSCCH 0 .
  • the SCI 0 may indicate a "SL-PRS resource set".
  • the "SL-PRS resource set” corresponds to a set of time slots in the resource pool e 0.
  • a subset of e.g., denoted by in Specifically, for example, the set may be indicated in the SCI 0 The index j 0 of .
  • the SCI 0 may indicate one or more time slots in the resource pool e 0 (for example, the corresponding time slot set may be recorded as in can be an integer greater than or equal to 1). Specifically, for example, the time slot index offset in the resource pool e0 can be indicated in the SCI0.
  • the one or more time slots may be the set Accordingly, the one or more time slots in the set may be indicated in the SCI 0 .
  • the time slot index offset in .
  • the SCI 0 may indicate a resource index set (e.g., in Can be an integer greater than or equal to 1).
  • step S403 the (one or more) SL-PRS resources indicated in the SCI are determined (for example, the corresponding set is recorded as in Can be an integer greater than or equal to 1).
  • the collection It may include one or more resource indication time intervals (for example, respectively denoted as in Can is an integer greater than or equal to 1), wherein the manner of determining the SL-PRS resources in each resource indication time interval may be the same. Specifically, for example, in is the resource indication interval The set of SL-PRS resources determined within.
  • how to interpret one or more fields in the SCI 0 may be determined according to the SL-PRS resource granularity. Specifically, for example, if the SL-PRS resource granularity is a basic SL-PRS resource, then Used to indicate a basic SL-PRS resource, such as It can represent the number of the basic SL-PRS resource indicated by it within a resource indication time interval; for example, if the SL-PRS resource granularity is an SL-PRS resource grid, then Used to indicate an SL-PRS resource grid, such as the It can represent the number of the SL-PRS resource grid indicated by it within a resource indication time interval.
  • the one or more resource indication time intervals may be independent of the SL-PRS resource granularity.
  • the one or more resource indication time intervals may correspond to the time slots
  • the one or more resource indication time intervals may be determined according to the SL-PRS resource granularity. For example, if the SL-PRS resource granularity is a basic SL-PRS resource, each of the resource indication time intervals may correspond to an SL-PRS resource grid. For another example, if the SL-PRS resource granularity is an SL-PRS resource grid, the one or more resource indication time intervals may correspond to the time slots, respectively.
  • the SL-PRS resource granularity may be determined in a predefined or configured or preconfigured manner.
  • the SL-PRS resource granularity may be indicated in the SCI 0 .
  • the present invention provides a method, which greatly improves the flexibility of SL-PRS resource allocation or reservation by indicating the SL-PRS resource granularity in the SCI, and determining one or more fields related to SL-PRS resource allocation or reservation in the SCI according to the indicated SL-PRS resource granularity.
  • FIG. 5 shows a flowchart corresponding to a method executed by a UE according to a fifth embodiment of the present invention.
  • the steps performed by the UE include: step S501 and step S503 .
  • step S501 DCI (Downlink Control Information) is received.
  • PDCCH Physical downlink control channel
  • DCI for example, denoted as DCI 0
  • DCI 0 DCI carried in the received PDCCH is decoded according to a first SL DCI format.
  • the first SLDCI format can be used to schedule one or more SL transmissions (for example, one or more PSCCHs and/or PSSCHs; for example, one or more PSCCH/PSSCHs).
  • the first SLDCI format can be DCI format 3_0; for example, the one or more SL transmissions can be one or more SL transmissions in a resource pool (for example, denoted as e0 ) in a SL bandwidth segment (for example, denoted as b0 ) in a SL carrier (for example, denoted as c0 ), wherein the SL bandwidth segment b0 can be the only SL bandwidth segment in the SL carrier c0 , in which case the resource pool e0 can be referred to as a resource pool in the SL carrier c0 .
  • the SL carrier c 0 may be determined in a predefined or configured or preconfigured manner.
  • the SL carrier index (e.g., denoted as i 0 ) corresponding to the SL carrier c 0 may correspond to a predefined or configured or preconfigured parameter, or may be determined based on one or more predefined and/or configured and/or preconfigured parameters.
  • the SL carrier c 0 may be indicated in the first SLDCI format, for example, by a "carrier indicator" (or carrier index) field in the first SLDCI format.
  • the value of the carrier indicator field may be equal to the index i 0 .
  • the SL bandwidth segment b0 may be determined in a predefined or configured or preconfigured manner.
  • the SL bandwidth segment index (e.g., denoted as j0 ) corresponding to the SL bandwidth segment b0 may correspond to a predefined or configured or preconfigured parameter, or may be determined according to one or more predefined and/or configured and/or preconfigured parameters.
  • the SL bandwidth segment b 0 may be indicated in the DCI 0 , for example, by a "bandwidth part indicator" (or bandwidth part index) field in the DCI 0. Specifically, for example, the value of the bandwidth part indicator field may be equal to the index j 0 .
  • the resource pool e0 may be determined in a predefined or configured or preconfigured manner.
  • the resource pool index (e.g., denoted as k0 ) corresponding to the resource pool e0 may correspond to a predefined or configured or preconfigured parameter, or may be determined according to one or more predefined and/or configured and/or preconfigured parameters.
  • the resource pool e0 may be indicated in the DCI0 , for example, by a resource pool indicator (resource pool indicator, or resource pool index, resource Specifically, for example, the value of the resource pool indicator field may be equal to the index k 0 .
  • Part or all of the content of the DCI 0 can be determined by the values of one or more parameters of the resource pool e 0 (for example, the type of the resource pool e 0 ; for example, the resource pool set to which the resource pool e 0 belongs).
  • the DCI 0 includes (or only includes) fields in the first field set and fields in the second field set.
  • the DCI 0 includes (or only includes) the fields in the first field set and the fields in the third field set.
  • the first field set may include zero, one or more fields.
  • the first field set may include one or more of the following:
  • the second field set may include zero, one or more fields.
  • the third field set may include one or more of the following:
  • the third field set may include zero, one or more fields.
  • the third field set may include one or more of the following:
  • the second field set and the third field set may have one or more fields with the same name, but different sizes and/or uses of the fields.
  • the first resource pool index set may include one or more resource pool indexes.
  • the second resource pool index set may include one or more resource pool indexes.
  • intersection of the first resource pool index set and the second resource pool index set may be an empty set.
  • step S503 the operation indicated by the received DCI is performed (for example, performing one or more SL transmissions scheduled by the DCI).
  • the present invention provides a method, according to the DCI modulation
  • the type of resource pool where the SL transmission of the desired degree is located determines part or all of the content of the DCI. This allows one DCI format to be used to schedule SL transmissions of different types and/or for different purposes in different types of resource pools, simplifies the design of the DCI format and the problems caused by DCI size alignment, and improves the efficiency of network scheduling SL transmissions.
  • FIG. 6 is used to illustrate a user equipment as a variation example that can execute the method executed by the user equipment described in detail above in the present invention.
  • FIG6 is a block diagram showing a user equipment according to the present invention.
  • the user equipment UE60 includes a processor 601 and a memory 602.
  • the processor 601 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc.
  • the memory 602 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memories, etc.
  • the memory 602 stores program instructions. When the instructions are executed by the processor 601, the above method performed by the user equipment described in detail in the present invention may be executed.
  • the method of the present invention and the user equipment involved have been described above in conjunction with preferred embodiments. Those skilled in the art will appreciate that the method shown above is merely exemplary, and the embodiments described above can be combined with each other without contradiction. The method of the present invention is not limited to the steps and sequence shown above. The user equipment shown above may include more modules. The various identifiers shown above are merely exemplary and not restrictive, and the present invention is not limited to the specific information elements used as examples of these identifiers. Those skilled in the art will appreciate that the method shown above is merely exemplary, and the embodiments described above can be combined with each other without contradiction. Many variations and modifications are possible to the teachings.
  • any set is a subset of itself; the empty set is a subset of any set; part or all of a mathematical expression, mathematical equation, or mathematical inequality can be simplified, transformed, or rewritten to a certain extent (for example, merging constant terms, exchanging two addition terms, exchanging two multiplication terms, changing the sign of a term and moving it from the left side of the equation or inequality to the right side, changing the sign of a term and moving it from the right side of the equation or inequality to the left side, etc.), and the mathematical expressions, mathematical equations, or mathematical inequalities before and after simplification, transformation, or rewriting can be considered to be equivalent.
  • the above embodiments of the present invention can be implemented by software, hardware, or a combination of software and hardware.
  • the various components inside the user equipment in the above embodiments can be implemented by a variety of devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processors, application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), programmable logic devices (CPLDs), and the like.
  • DSP digital signal processing
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • CPLDs programmable logic devices
  • base station may refer to a mobile communication data and/or control exchange center with a certain transmission power and a certain coverage area, for example, including functions such as resource allocation scheduling, data reception and transmission, etc.
  • User equipment may refer to a user mobile terminal, for example, including mobile phones, notebooks, etc., which can communicate wirelessly with a base station or a micro base station.
  • the embodiments of the present invention disclosed herein may be implemented on a computer program product.
  • the computer program product is a product having a computer-readable medium, on which is encoded a computer program logic, which, when executed on a computing device, provides relevant operations to implement the above-mentioned technical solution of the present invention.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the above-mentioned technical solution of the present invention.
  • Such a configuration of the present invention is typically provided as software, code and/or other data structures set or encoded on a computer-readable medium such as an optical medium (e.g., CD-ROM), a floppy disk or a hard disk, or other media such as firmware or microcode on one or more ROM or RAM or PROM chips, or downloadable software images in one or more modules, shared databases, etc.
  • a computer-readable medium such as an optical medium (e.g., CD-ROM), a floppy disk or a hard disk, or other media such as firmware or microcode on one or more ROM or RAM or PROM chips, or downloadable software images in one or more modules, shared databases, etc.
  • the software or firmware or such a configuration can be installed on a computing device so that one or more processors in the computing device execute the technical solutions described in the embodiments of the present invention.
  • each functional module or each feature of the user equipment used in each of the above embodiments can be implemented or executed by a circuit, which is generally one or more integrated circuits.
  • the circuits designed to perform the various functions described in this specification may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC) or a general-purpose integrated circuit, a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, or a discrete hardware component, or any combination of the above devices.
  • the general-purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller or state machine.
  • the above-mentioned general-purpose processor or each circuit may be configured by a digital circuit, or may be configured by a logic circuit.
  • the present invention may also use an integrated circuit obtained using the advanced technology.

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Abstract

本发明提出了一种由用户设备执行的方法以及用户设备，由用户设备执行的方法包括：确定SCI的内容，其中所述SCI中的优先级字段的值被设置为所述SCI关联的PSSCH所携带的MAC PDU对应的所有逻辑信道的优先级、所有MAC CE的优先级、以及复用在所述PSSCH所在的时频资源中的SL-PRS的优先级中的最高优先级所对应的优先级值，以及传输所述SCI。

Description

由用户设备执行的方法以及用户设备 技术领域
本发明涉及一种由用户设备执行的方法以及用户设备。
背景技术
在无线通信系统中，不同的通信节点之间可以进行信息交换。无线通信可以在授权频谱(licensed spectrum)和/或非授权频谱(unlicensed spectrum)上进行。无线通信系统的一个例子是由3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)标准化的系统，例如基于LTE(Long-Term Evolution)无线接入技术的4G系统或其演进系统，又如基于NR(New Radio)无线接入技术的5G系统或其演进系统。在一个基于3GPP规范的通信系统中，通信节点的例子可以包括UE(User Equipment，用户设备)和基站(例如eNB，又如gNB)。从基站到UE的无线链路(radio link)可以称为下行链路(DL，downlink)，从UE到基站的无线链路可以称为上行链路(UL，uplink)，UE之间的无线链路可以称为侧行链路(SL，sidelink)。基站和UE之间进行无线传输和/或接收的接口可以称为Uu接口(例如基于NR的NR-Uu接口；又如基于LTE的LTE-Uu接口)。UE之间进行无线传输和/或接收的接口可以称为PC5接口。
在无线通信系统中可以支持一种或多种定位(positioning)技术。在对UE进行定位时，可以根据对下行信号的测量，和/或对上行信号的测量，和/或对侧行信号的测量，计算或估计UE的位置信息。为了支持在授权频 谱和/或非授权频谱上的通信，和/或在授权频谱和/或非授权频谱上对UE的定位，需要解决一系列的问题，例如，信道接入(channel access)机制；又如，物理层信道和/或信号的结构；又如，物理层控制信息和/或信令流程(例如同步流程，又如反馈和/或确定机制)；又如，更高层控制信息和/或信令流程；又如，资源的分配和/或管理；又如，不同系统间的共存。
在先技术文献
非专利文献
非专利文献1：RP-152293，New WI proposal：Support for V2V services based on LTE sidelink，3GPP TSG RAN Meeting #70
非专利文献2：RP-170798，New WID on 3GPP V2X Phase 2，3GPP TSG RAN Meeting #75
非专利文献3：RP-170855，New WID on New Radio Access Technology，3GPP TSG RAN Meeting #75
非专利文献4：RP-190766，New WID on 5G V2X with NR sidelink，3GPP TSG RAN Meeting #83
非专利文献5：RP-201385，WID revision：NR sidelink enhancement，3GPP TSG RAN Meeting #88e
非专利文献6：RP-221938，Revised WID on NR sidelink evolution，3GPP TSG RAN Meeting #97e
非专利文献7：RP-210903，Revised WID on NR Positioning Enhancements，3GPP TSG RAN Meeting #91e
非专利文献8：RP-222616，Revised SID on Study on expanded and improved NR positioning，3GPP TSG RAN Meeting #97e
发明内容
为了解决上述问题中的至少一部分，本发明提供了一种由用户设备执行的方法以及用户设备，根据PSSCH中携带的MAC PDU的优先级以及复用在所述PSSCH中的一个或多个SL-PRS的优先级，推导SCI中指示的优先级值。这使得在SCI中指示的优先级值可以更好地体现更高层协议期望的优先级处理方式。
根据本发明，提出了一种由用户设备执行的方法，其特征在于包括：确定SCI的内容，其中所述SCI中的优先级字段的值等于第一优先级值和第二优先级值中的较小者，所述第一优先级值是携带所述SCI的PSCCH所关联的PSSCH所携带的MAC PDU的优先级的值，所述第二优先级值是所述PSSCH中复用的SL-PRS的优先级的值，以及传输所述SCI。
此外，根据本发明，提出了一种用户设备，包括：处理器；以及存储器，存储有指令，其中，所述指令在由所述处理器运行时执行上述的方法。
因此，本发明提供了一种方法，根据PSSCH中携带的MAC PDU的优先级以及复用在所述PSSCH中的一个或多个SL-PRS的优先级，推导SCI中指示的优先级值。这使得在SCI中指示的优先级值可以更好地体现更高层协议期望的优先级处理方式。
附图说明
通过下文结合附图的详细描述，本发明的上述和其他特征将会变得更加明显，其中：
图1示出了根据本发明的实施例一的由用户设备执行的方法对应的流程图。
图2示出了根据本发明的实施例二的由用户设备执行的方法对应的流程图。
图3示出了根据本发明的实施例三的由用户设备执行的方法对应的流程图。
图4示出了根据本发明的实施例四的由用户设备执行的方法对应的流程图。
图5示出了根据本发明的实施例五的由用户设备执行的方法对应的流程图。
图6示出了本发明所涉及的用户设备的框图。
具体实施方式
下面结合附图和具体实施方式对本发明进行详细阐述。应当注意，本发明不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本发明没有直接关联的公知技术的详细描述，以防止对本发明的理解造成混淆。
下文以3GPP制定的5G(或者称为NR，或者称为5G NR)无线通信系统规范及其后续的演进版本(例如，5G Advanced)作为示例应用环境，具体描述了根据本发明的多个实施方式。然而，需要指出的是，本发明不 限于以下实施方式，而是可适用于更多其他的无线通信系统，例如5G之后的无线通信系统，又如5G之前的4G移动通信系统或其演进系统如LTE、LTE-Advanced、LTE-Advanced Pro等。
本发明给出的术语在不同的无线通信系统中可能采用不同的命名方式，但本发明中采用统一的术语，在应用到具体的系统中时，可以替换为相应系统中采用的术语。
在本发明的所有实施例和实施方式中，如未特别说明：
●“节点”(或者“通信节点”)可以是一个UE，或者是一个网络节点(例如基站，又如定位服务器)。
●“基站”可以是一个eNB(E-UTRAN NodeB，E-UTRAN节点B，
其中，E-UTRAN表示Evolved Universal Terrestrial Radio Access Network，演进的统一陆地无线接入网)，或者是一个gNB(向UE提供NR用户面和控制面协议终结、并通过NG接口连接到5G核心网的节点)，或者是一个ng-eNB(向UE提供E-UTRA用户面和控制面协议终结、并通过NG接口连接到5G核心网的节点，其中E-UTRA表示Evolved Universal Terrestrial Radio Access，演进的统一陆地无线接入)。
●“定位服务器”可以指E-SMLC(Enhanced Serving Mobile Location Centre，增强服务移动位置中心)，或者SLP(SUPL Location Platform，SUPL位置平台，其中SUPL指的是Secure User Plane Location，安全用户面位置)，或者LMF(Location Management Function，位置管理功能)，或者一个实现了类似功能的其他节点。
●“更高层”(higher layer(s)，或者upper layer(s))可以指在一个特定的协议栈(protocol stack)中，一个参考协议层或参考协议子层之上的一个或多个协议层或协议子层。例如，若所述参考协议层或参考协议子层是物理层，则“更高层”可以指MAC(Medium Access Control，介质访问控制)层，和/或RLC(Radio Link Control，无线链路控制协议)层，和/或PDCP(Packet Data Convergence Protocol，分组数据汇聚协议)层，和/或PC5 RRC(Radio Resource Control，无线资源控制)层，和/或PC5-S层，和/或RRC层，和/或其他协议层或协议子层。如未特别说明，所述参考协议层或参考协议子层是物理层。在不会引起歧义的情况下，“更高层”也可以称为“高层”。
●“配置”(configure)可以指在一个通信节点(例如UE)中，第一个协议层(例如RRC层)实体向第二个协议层(例如物理层)实体提供配置信息。
●“配置”可以指第一个通信节点(例如基站)向第二个通信节点(例如UE)提供配置信息(例如从基站向UE传输RRC信令，其中包含所述配置信息；又如从UE-A向UE-B传输PC5-RRC信令，其中包含所述配置信息)。“配置”可以额外包括在所述第二个通信节点中，第一个协议层(例如RRC层)实体向第二个协议层(例如物理层)实体提供从所述第一个通信节点接收到的配置信息。
●“预配置”(pre-configure)可以指将相应的配置信息预置在一个通信节点(例如UE)中特定的存储位置，或者将相应的配置信息 预置在UE能存取的特定的存储位置。
●“配置”可以指“配置或预配置”。
●“个数”可以指“总数”。例如，“一个资源池中的子信道个数”(the number of sub-channels in a resource pool)可以指所述资源池中的子信道总数(the total number of sub-channels in the resource pool)。
●常数Tc可以定义为：Tc＝1/(Δfmax·Nf)，其中Δfmax＝480·103Hz，Nf＝4096。
●常数κ可以定义为：κ＝Ts/Tc＝64，其中Ts＝1/(Δfref·Nf，ref)，Δfref＝15·103Hz，Nf，ref＝2048。
●μ可以表示子载波间隔配置(subcarrier spacing configuration)，例如μ＝0；Δf可以表示相应的子载波间隔(subcarrier spacing，SCS)，例如μ＝0对应Δf＝15kHz。
●“符号”可以指OFDM(Orthogonal Frequency Division Multiplexing，正交频分复用)符号。
●可以表示每个子帧中的时隙的个数。
●可以表示每个时隙中的符号的个数。
●一个资源(resource)可以对应下面中的一项或多项：
■时域(time-domain)上的一个或多个参数。例如，所述资源的起始符号；又如，所述资源的起始时隙；又如，所述资源占用的符号个数；又如，所述资源占用的时隙个数。
■频域(frequency-domain)上的一个或多个参数。例如，所述资 源的起始子信道；又如，所述资源的起始RB(resource block，资源块)；又如，所述资源的起始子载波；又如，所述资源占用的子信道个数；又如，所述资源占用的RB个数；又如，所述资源占用的子载波个数。
■码域(code-domain)上的一个或多个参数。例如，所述资源对应的循环移位(cyclic shift)值或相应的循环移位索引；又如，所述资源对应的循环移位对(cyclic shift pair)值或相应的循环移位对索引。
■空域(spatial-domain)上的一个或多个参数。例如，所述资源对应的层(layer)，其中一个“层”可以指一个MIMO(Multiple Input Multiple Output，多输入多输出)层。
例如，若一个资源对应时域上的一个或多个参数(例如符号)以及频域上的一个或多个参数(例如RB)，则所述资源可以称为一个“时频资源”。
●一个“层”可以指在空间复用(spatial multiplexing)中，一个TB(Transport Block，传输块)所映射到的一个或多个层中的一个。所述映射也可以认为是所述TB对应的码字(codeword)到所述一个或多个层的映射。
●“RB”可以指PRB(physical resource block，物理资源块)，或者VRB(virtual resource block，虚拟资源块)，或者CRB(common resource block，公共资源块)，或者IRB(Interlaced Resource Block，交织资源块)。
●“编号”和“索引”可以互换。例如，一个RB的编号(number)也可以称为所述RB的索引(index)。又如，“将一个RB编号为0”也可以表述为“将一个RB索引为0”。
●一个序列(或者数组，或者列表，或者有序的集合，等等)中的元素的编号可以从0开始。例如，一个RB集(RB Set)的第一个RB可以称为所述RB集的RB 0。
●一个对象(例如一个子载波、一个时隙、一个循环移位，等等)可以用其索引表示，例如编号为0的CRB可以称为CRB 0。
●若在提到一个对象时未指明相应的数量，则所述对象的数量可以是一个，或者多个。例如，在“在一个信道上执行传输”中，所述“传输”(transmission(s))可以对应一个传输，或者多个传输。
●一个“位图”(bitmap，例如记为B)可以对应一个比特序列，例如，B＝(b0，b1，...，bL-1)，其中L是所述位图B的长度；b0可以是所述位图B的MSB(Most Significant Bit，最高有效位)，或者LSB(Least Significant Bit，最低有效位)。
●Δ(x1，x2)可以表示x1和x2之间的偏移(offset between x1 and x2)，其中，所述x1和所述x2可以是两个可以比较的参数(或变量)，或者一个参数(或变量)的两个可能的值(例如，所述x1和所述x2可以是两个时隙，或者两个子帧，或者两个帧，或者两个子载波，或者两个RB，或者两个子信道，等等)。
●Δ(x1，x2)可以等于x2-x1。例如，记CRB集合 其中 且则Δ(x1，x2)可以等于
●Δ(x1，x2)可以等于idx(x2)-idx(x1)，其中idx(x1)和idx(x2)分别是x1和x2在同一个集合中对应的元素的索引。例如，记CRB集合其中 且则Δ(x1，x2)可以等于3-0＝3。
●“x1和x2之间的偏移”又可以称为x2相对于x1的偏移(offset of x2 with respect to x1，或者offset of x2 relative to x1)。
●“x1和x2之间的偏移”又可以称为从x1到x2的偏移(offset from x1 to x2)。
●若Δ(x1，x2)＝D，可以将x2记为x2＝ADD(x1，D)。
●若Δ(x1，x2)＝D，可以将x1记为x1＝SUBTRACT(x2，D)。
●两个子载波之间的偏移可以是所述两个子载波的中心频率之间的偏移。
●取模运算(Modulo Operation)可以定义为r≡a mod N，其中，
■r是余数(remainder)。
■a＝N×q+r，其中，q可以称为a和N的整数商(integer quotient)。
■0≤r＜|N|。
●舍入运算(Round Operation)可以记为b＝round(a)，其中，b可以定义为最接近a的整数。若存在两个最接近a的整数，则b可以定义 为所述两个整数中较大者，或者定义为所述两个整数中较小者。
●“资源池”指的是SL资源池。
●“SCI”(Sidelink Control Information)指的可以是一阶段(one-stage，或者称为“单阶段”，single-stage)SCI，或者是两阶段(two-stage)SCI。对两阶段SCI，“SCI”可以指第一阶段SCI(1st-stage SCI)和/或第二阶段SCI(2nd-stage SCI)。
●一个“SL时隙”可以指一个配置或预配置了SL资源的时隙。其中，所述“SL资源”可以包括或者不包括用于特定用途的资源，其中所述“用于特定用途的资源”可以是用于同步流程的资源，例如用于传输S-SS/PSBCH(S-SS/Physical Sidelink Broadcast CHannel，或者Sidelink-Synchronization Signal/Physical Sidelink Broadcast CHannel)块的资源。一个S-SS/PSBCH块又可以称为一个S-SSB。
●一个“物理时隙”可以指一个属于某个物理时隙集合的时隙，其中，所述物理时隙集合可以是一段连续的时间(例如，一个持续时间为1024个帧的帧周期)中的所有时隙；所述物理时隙集合中的物理时隙可以按时间先后顺序依次编号为0，1，……。
●一个“逻辑时隙”可以指一个属于某个资源池的时隙集合的时隙，其中，所述时隙集合可以是一段连续的时间(例如，1024个帧)中属于所述资源池的所有时隙；所述时隙集合中的逻辑时隙可以按时间先后顺序依次编号为0，1，……。
●一个“逻辑时隙”可以指一个可以配置为属于某个资源池的时隙集合的时隙。
●一个“SL时隙”可以指一个属于某个资源池的时隙集合的时隙。
●一个“SL时隙”可以指一个可以配置为属于某个资源池的时隙集合的时隙。
●一个SL时隙中的SL符号集合可以记为其中分别表示相应的符号在所述时隙内的索引，其中 其中是所述时隙内第一个SL符号的索引(例如通过参数sl-StartSymbol配置)，是所述时隙内SL符号的个数(例如通过参数sl-LengthSymbols配置)。
●一个将PSSCH(Physical Sidelink Shared Channel，物理侧行共享信道)及其关联的PSCCH(Physical Sidelink Control Channel，物理侧行控制信道)复用在同一个资源(例如，一个SL时隙中的若干个子信道)中的SL传输可以称为一个“PSCCH/PSSCH传输”。
●在时域，一个“帧”(frame，或者称为“无线帧”，radio frame)可以是一个系统帧(system frame)，或者是一个直接帧(direct frame)。一个帧号(frame number)周期的持续时间(例如记为TFNP)可以是一个预定义或配置或预配置的值，例如，TFNP＝1024个帧。一个帧号周期内的每个帧可以对应一个唯一的帧号，例如按时间先后顺序依次为0，1，……，1023。一个系统帧的帧号可以称为一个SFN(system frame number)；又如，一个直接帧的帧号可以称为一个DFN(direct frame number))，相应地，对系统帧，一个帧周期可以称为一个SFN周期；对直接帧一个帧周期可以称为一个 DFN周期。每个帧的持续时间可以是Tf＝10毫秒，其中可以包含10个子帧，其中每个子帧的持续时间为Tsf＝1毫秒。每个子帧中可以包含个时隙，例如，一个时隙在子帧中的索引可以记为一个时隙在帧中的索引可以记为其中，可以等于10·2μ。一个帧号周期中的时隙索引可以记为 其中可以等于 (例如，1024·(10·2μ))。
●“目标UE”(target UE)可以指正在被定位的UE(或者称为“正在被定位的设备”)。
●“锚点UE”(anchor UE)可以指为目标UE的定位提供支持的UE(或者称为“为目标UE的定位提供支持的设备”)。
●一个SL ID(sidelink identity，sidelink ID，SL标识符)可以是一个层一(layer 1)SL ID，或者是一个层二(layer 2)SL ID。
●一个优先级(priority，或者优先级别，priority level)可以对应一个优先级值(priority value)。例如，一个优先级对应的优先级值是0，另一个优先级对应的优先级值是1。
●一个优先级在第一个协议层中可以对应第一个优先级值，在第二个协议层中可以对应第二个优先级值，其中，所述第一个优先级值和所述第二个优先级值可以相等，或者不等。例如，物理层的优先级值0，1，……，7可以分别对应更高层的1，2，……，8。
●优先级顺序(priority order)与相应的优先级值的关系可以是：随 着优先级值增加，优先级(或者称为“优先级顺序”)降低。例如，若第一个SL传输和第二个SL传输所关联的优先级所对应的优先级值分别是0和1，则所述第一个SL传输的优先级高于所述第二个SL传输的优先级。
●优先级顺序与相应的优先级值的关系可以是：随着优先级值增加，优先级(或者称为“优先级顺序”)升高。例如，若第一个SL传输和第二个SL传输所关联的优先级所对应的优先级值分别是0和1，则所述第一个SL传输的优先级低于所述第二个SL传输的优先级。
在SL上与定位有关的参考信号可以称为SL-PRS(Sidelink Positioning Reference Signal，侧行定位参考信号)。用于SL-PRS的频率资源可以配置在一个资源池中，其中，所述用于SL-PRS的频率资源可以对应所述资源池中的部分RB，或者全部RB。
一个SL-PRS传输所对应的时域和/或频域和/或码域和/或空域资源可以称为一个“基本SL-PRS资源”。
一个基本SL-PRS资源上可以有实际的SL-PRS传输，或者没有实际的SL-PRS传输。
一个“SL-PRS资源”可以对应一个基本SL-PRS资源，或者若干个(例如有限个，又如无限个)基本SL-PRS资源，其中，所述若干个基本SL-PRS资源可以是周期性出现的，或者不是周期性出现的。
个基本SL-PRS资源可以复用在一个“SL-PRS资源网格”中，其中，所述SL-PRS资源网格可以对应时域上的个符号(例如 个连续的符号)和频域上的个RB(例如个连续的RB)，可以是一个大于或等于1的整数，可以是一个大于或等于1的整数，可以是一个大于或等于1的整数，所述中的任意一个可以是一个预定义或配置或预配置的值，或者根据一个或多个预定义或配置或预配置的值确定。
一个“SL-PRS资源网格”中的个符号可以在同一个时隙内，相应地，所述个符号在所述时隙内的编号可以分别记为 其中，所述可以是一个预定义或配置或预配置的值，或者根据一个或多个预定义或配置或预配置的值确定。可选地，除所述个符号外，一个SL-PRS资源网格可以额外地包含一个可以用于AGC(Automatic Gain Control，自动增益控制)的符号(例如符号)，和/或一个可以用于传输、接收转换的间隔(gap)符号(例如符号)。符号 可以在同一个时隙内。
一个SL-PRS资源网格中的(或者，)个符号在时域上可以对应一个“基本SL-PRS时机”(basic SL-PRS occasion，或者称为基本SL-PRS传输时机，basic SL-PRS transmission occasion)。一个包含一个或多个基本SL-PRS时机的时隙可以称为一个“SL-PRS时隙”。
一个“SL-PRS时机”可以对应一个基本SL-PRS时机，或者一个SL-PRS时隙，或者若干个(例如有限个，又如无限个)基本SL-PRS时机或SL-PRS时隙，其中，所述若干个基本SL-PRS时机或SL-PRS时隙可以是周期性出现的，或者不是周期性出现的。
一个“SL-PRS资源网格”中的个RB的RB编号(例如CRB编号，又如PRB编号)可以分别记为 其中，所述可以是一个预定义或配置或预配置的值，或者根据一个或多个预定义或配置或预配置的值确定。
一个SL-PRS资源网格所对应的资源可以在一个资源池中，例如，所述SL-PRS资源网格中的(或者，)个符号所在的时隙是所述资源池中的一个时隙，所述SL-PRS资源网格中的个RB在所述资源池的带宽内。所述个RB对应的带宽可以称为“SL-PRS带宽”。所述SL-PRS带宽可以对应所述资源池的部分带宽，或者全部带宽。
在一个SL-PRS资源网格中的个基本SL-PRS资源中，每一个基本SL-PRS资源所占用的RE(Resource Element，资源元素)的集合可以对应一个独特的、“大小”为的梳状图案(comb-like pattern)，例如称为图案。具体地，例如，和可以对应一个Comb-2图案，其中，
●在符号中，第一个基本SL-PRS资源占用SL-PRS带宽中的每个RB中的子载波0，2，4，6，8，10，第二个基本SL-PRS资源占用SL-PRS带宽中的每个RB中的子载波1，3，5，7，9，11。
●在符号中，第一个基本SL-PRS资源占用SL-PRS带宽中的每个RB中的子载波1，3，5，7，9，11，第二个基本SL-PRS资源占用SL-PRS带宽中的每个RB中的子载波0，2，4，6，8，10。
在一个SL-PRS资源网格中的个基本SL-PRS资源中，每一个基本SL-PRS资源在符号中的最小编号的子载波在相应的RB中的 子载波编号可以称为所述基本SL-PRS资源的“SL-PRS RE偏移”。例如，在上面关于和的例子中，第一个基本SL-PRS资源的“SL-PRS RE偏移”为0，第二个基本SL-PRS资源的“SL-PRS RE偏移”为1。在所述SL-PRS资源网格中，所述个基本SL-PRS资源可以按“SL-PRS RE偏移”从小到大的顺序进行索引，例如，记基本SL-PRS资源a的“SL-PRS RE偏移”为则
一个SL-PRS传输可以和一个其他SL传输(例如携带应用层数据的PSCCH传输和/或PSSCH传输，和/或相应的PSFCH(Physical Sidelink Feedback Channel，物理侧行反馈信道)传输)复用在同一个时频资源中。例如，一个SL-PRS资源可以对应一个PSCCH/PSSCH传输所在的时隙中的一个或多个符号中的每一个符号中的一个或多个RE。在这种情况下，一个SL-PRS传输所对应的RE集合可以对应一个SL-PRS资源网格中的某个梳状图样，或者不对应所述SL-PRS资源网格中任何一个梳状图案。
一个专门用于传输SL-PRS和/或相应的控制信息和/或相应的测量报告和/或其他用于定位目的的SL传输的资源池可以称为一个“定位资源池”，或者“专用SL-PRS资源池”，或者“专用SL定位资源池”，或者“SL定位资源池”。
一个专门用于以通信为目的的SL传输(例如携带应用层数据的PSCCH传输和/或PSSCH传输，和/或相应的PSFCH传输)的资源池可以称为一个“通信资源池”。
一个既可以用于以定位为目的的SL传输(例如包括SL-PRS传输和/ 或相应的控制信息的传输和/或相应的测量报告的传输)也可以用于以通信为目的的SL传输(例如携带应用层数据的PSCCH传输和/或PSSCH传输，和/或相应的PSFCH传输)的资源池可以称为一个“共享资源池”。
一个资源池可以配置或预配置为“定位资源池”，或者“通信资源池”，或者“共享资源池”。
一个资源池(例如记为e)的时隙集合(例如记为)可以是在一个预定义的资源池定义周期(例如，一个SFN周期或一个DFN周期)内的、分配给所述资源池e的所有时隙组成的集合。在所述资源池定义周期内的所有物理时隙的集合可以记为Tall＝{0，1，...，10240×2μ-1}，其中μ是所述资源池e所在的SL BWP的子载波配置。
为确定所述集合可以先在所述集合Tall中排除满足第一资源池时域条件的所有时隙，并将剩下的所有时隙按其在所述集合Tall中的顺序组成第一时隙子集(例如记为)，然后将所述第一时隙子集中满足第二资源池时域条件的所有时隙按其在所述第一时隙子集中的顺序组成第二时隙子集，则所述资源池e的时隙集合可以等于所述第二时隙子集。
对时隙t∈Tall，所述第一资源池时域条件可以包括下面中的一项或多项(例如，按“与”或者“或”的方式的任意一种组合)：
●所述时隙t是一个“S-SSB时隙”，其中，一个S-SSB时隙可以是其中配置了S-SSB的时隙。S-SSB时隙的个数可以记为NS-SSB。
●所述时隙t是一个“非SL时隙”，其中，一个非SL时隙可以是其中的符号符号和符号中 至少有一个没有半静态地配置为UL符号的时隙。非SL时隙的个数可以记为NnonSL。
●所述时隙t是一个“保留时隙”，其中，“保留时隙”可以按如下方式定义：
■将所述集合Tall中除了NS-SSB个S-SSB时隙以及NnonSL个非SL时隙外的其他所有时隙按时隙索引从小到大的顺序依次记为
■对时隙lr是一个“保留时隙”，其中，0≤r＜10240×2μ-NS-SSB-NnonSL，m＝0，1，…，Nreserved-1，Nreserved＝(10240×2μ-NS-SSB-NnonSL)mod Lbitmap，其中Lbitmap可以是由更高层配置的一个位图的长度。例如，所述位图可以记为 又如，所述位图可以由参数sl-TimeResource配置。
所述第一时隙子集中的时隙个数可以等于10240×2μ-NS-SSB-NnonSL-Nreserved。
对时隙(0≤k＜10240×2μ-NS-SSB-NnonSL-Nreserved)，所述第二资源池时域条件可以包括：
●其中，k′＝k mod Lbitmap。
所述资源池e的时隙集合可以记为其中，对时隙的下标可以表示其在所述资源池e中的时隙索引。
在所述资源池e(例如，当所述资源池e是一个定位资源池时)中，可以对所述集合中的部分或全部时隙配置SL-PRS资源。例如，所述集合中的SL-PRS时隙的集合可以划分为个子集(例如分别记为 )，其中，可以是一个大于或等于1的整数，所述个子集中任意两个子集的交集可以是空集。作为一个特例，可以等于1，且可以等于
对时隙集合可以对应一个“SL-PRS资源集”(例如，这可以表示所述“SL-PRS资源集”是所述时隙集合中的所有时隙中的SL-PRS资源的集合)。
对所述时隙集合可以对应下面中的一项或多项参数(其中每一项参数可以按预定义或配置或预配置的方式确定)：
●一个资源集周期(例如记为)。
●一个资源集时隙偏移(例如记为)。
●一个资源重复因子(例如记为)。
●一个资源时间间隔(例如记为)。
●一个“第一静音选项”。例如，所述第一静音选项可以对应一个静音重复因子(例如记为)以及一个静音位图(例如记为其中是所述静音位图的长度)。
●一个“第二静音选项”。例如，所述第二静音选项可以对应一个静音位图(例如记为其中是所述静音位图的长度)。
●个资源时隙偏移(例如分别记为 )。其中，可以是一个大于或等于1的整数。
具体地，例如，对若存在 使得所述集合中的时隙满足第一SL-PRS资源集定义条件，则所述时隙属于所述集合其中，所述第一SL-PRS资源集定义条件可以包括下面中的一项或多项(例如，按“与”或者“或”的方式的任意一种组合)：
●
●所述时隙未被“静音”(muted)。例如，若下面中有一项成立，则表示所述时隙未被“静音”：
■未配置任何静音选项。例如，所述“第一静音选项”和所述“第二静音选项”都未配置。
■所述“第二静音选项”未配置；所述“第一静音选项”已配置，且所述“第一静音选项”中的静音位图中对应所述时隙的比特已置位(或者，已复位)。
■所述“第一静音选项”未配置；所述“第二静音选项”已配置，且所述“第二静音选项”中的静音位图中对应所述时隙的比特已置位(或者，已复位)。
■所述“第一静音选项”已配置，且所述“第一静音选项”中的静音位图中对应所述时隙的比特已置位(或者， 已复位)；所述“第二静音选项”已配置，且所述“第二静音选项”中的静音位图中对应所述时隙的比特已置位(或者，已复位)。
所述“第一静音选项”中，“静音”操作的粒度可以是一个SL-PRS资源集。例如，所述静音位图中的每个比特可以对应一个SL-PRS资源集在一个或多个(例如，个)连续的资源集周期中所有属于所述SL-PRS资源集的时隙。
所述“第一静音选项”中的静音位图中对应所述时隙的比特可以是其中，z1可以等于
所述“第二静音选项”中，“静音”操作的粒度可以是一个SL-PRS时隙。例如，所述静音位图中的每个比特可以对应一个SL-PRS资源集在一个资源集周期中的一个“重复”(repetition)。具体地，例如，所述静音位图中的每个比特可以对应v在中的一个值。
所述“第二静音选项”中的静音位图中对应所述时隙的比特可以是其中，z2可以等于
所述“第一静音选项”和/或所述“第二静音选项”也可以在所述资源池e中配置，相应地，
●
●
●
所述“第一静音选项”和/或所述“第二静音选项”也可以在相应的SL BWP中配置，相应地，所述“第一静音选项”和/或所述“第二静音选项”可以应用于所述SL BWP中的所有适用的资源池(例如，所有配置了SL-PRS资源的资源池)。
所述“第一静音选项”和/或所述“第二静音选项”也可以在相应的SL载波中配置，相应地，所述“第一静音选项”和/或所述“第二静音选项”可以应用于所述SL载波中的所有适用的资源池(例如，所有配置了SL-PRS资源的资源池)。
在与SL-PRS有关的资源分配和/或资源预留和/或资源选择和/或资源重选中，可以按一定的“SL-PRS资源粒度”(SL-PRS resource granularity)执行相应的资源分配和/或资源预留和/或资源选择和/或资源重选。例如，在与资源分配和/或预留有关的信息(例如，SCI)中，可以指示个资源索引，其中可以是一个大于或等于1的整数；相应地，若所述SL-PRS资源粒度对应一个基本SL-PRS资源，则所述个资源索引对应个基本SL-PRS资源；若所述SL-PRS资源粒度对应一个SL-PRS资源网格，则所述个资源索引对应个SL-PRS资源网格。
SL-PRS资源粒度可以在时域和/或频域和/或码域和/或空域上定义。例如，一个表示SL-PRS资源粒度的参数(或字段)可以指示下面中的一项：
●一个或多个基本SL-PRS资源(例如，同一个SL-PRS资源网格中 的一个或多个基本SL-PRS资源)。
●一个或多个SL-PRS资源。
●一个或多个SL-PRS资源网格(例如，同一个时隙中的一个或多个SL-PRS资源网格)。
●一个或多个基本SL-PRS时机(例如，同一个时隙中的一个或多个基本SL-PRS时机)。
●一个或多个SL-PRS时机。
●一个或多个SL-PRS时隙。
所述表示SL-PRS资源粒度的参数(或字段)可以按预定义或配置或预配置的方式确定，或者在SCI或DCI或其他信令中指示。
实施例一
下面结合图1来说明本发明的实施例一的由UE执行的方法。
图1示出了根据本发明的实施例一的由UE执行的方法对应的流程图。
如图1所示，在本发明的实施例一中，UE执行的步骤包括：步骤S101和步骤S103。
具体地，在步骤S101，确定SCI(例如，记为SCI0，相应地，用于传输和/或接收所述SCI0的资源池可以记为e0)的内容。
所述SCI0可以是一阶段SCI，或者是两阶段SCI。例如，若所述资源池e0是一个定位资源池，则所述SCI0是一阶段SCI。又如，若所述资源池e0是一个共享资源池，则所述SCI0是两阶段SCI。又如，所述SCI0是两阶段SCI(即与所述资源池e0的类型无关)。
所述SCI0的部分或全部(例如，所述SCI0中的第一阶段SCI)可以由一个PSCCH(例如，记为PSCCH0)携带。可以认为所述SCI0(或者，所述SCI0中的第一阶段SCI)关联所述PSCCH0。
所述SCI0的部分或全部(例如，所述SCI0中的第二阶段SCI)可以复用在为所述PSCCH0关联(或者，调度)的PSSCH(例如，记为PSSCH0)分配的资源中。
所述SCI0可以指示NRES个资源(例如，时频资源)，其中，NRES可以是一个大于或等于1的整数；NRES可以根据一个或多个预定义和/或配置和/或预配置的参数确定；NRES可以在所述SCI0中指示。所述NRES个资源对应的集合可以记为复用在所述资源r0上的传输可以包括下面中的一项或多项：
●所述PSCCH0。
●所述PSSCH0。
●个SL-PRS，其中，可以是一个大于或等于1的整数，或者是一个大于或等于0的整数(例如又如， )；可以根据一个或多个预定义和/或配置和/或预配置的参数确定，或者根据所述SCI0中的一个或多个字段确定；对 所述个SL-PRS可以分别记为和
在所述资源r0上实际执行的(一个或多个)传输可以通过预定义或配置或预配置的方式确定，或者在所述SCI0中指示。
所述PSSCH0(例如，如果在所述资源r0上实际执行的传输中包含所述 PSSCH0的话)中携带的MAC PDU(Protocol Data Unit，协议数据单元)中，每个逻辑信道(如果有的话)可以关联一个优先级，每个MAC CE(Control Element)(如果有的话)可以关联一个优先级。优先级可以定义为所述MAC PDU中的所有逻辑信道(如果有的话)和/或所有MAC CE(如果有的话)中的最高优先级(或者，最低优先级)，或者定义为所述MAC PDU中的所有逻辑信道(如果有的话)和/或一个MAC CE(如果有的话)中的最高优先级(或者，最低优先级)。所述MAC PDU所关联的优先级可以等于所述可以表征所述MAC PDU所承载的业务(例如，数据传输业务)的优先级。
所述所述和所述(例如，如果在所述资源r0上实际执行的传输中包含所述所述和所述的话)可以分别关联一个优先级(例如依次记为和)。其中，
●所述所述和所述中的最高优先级和最低优先级可以分别记为和
●所述所述和所述可以对应同一个优先级(例如记为)。所述可以表示所述所述和所述所对应的定位业务(或者，定位会话)的优先级。
●所述所述和所述中的部分或全部可以由所述UE的更高层指示。
●所述可以由所述UE的更高层指示。
所述SCI0中可以包含一个或多个与优先级有关的字段，其中，每个所述字段可以指示一个优先级(例如，所述字段的值等于所述优先级所对应的优先级值)。例如，所述SCI0中可以包含一个字段(例如称为“优先级1”)，用于指示所述又如，所述SCI0中可以包含一个字段(例如称为“优先级2”)，用于指示所述又如，所述SCI0中可以包含一个字段(例如称为“优先级3”)，用于指示所述又如，所述SCI0中可以包含一个字段(例如称为“优先级4”)，用于指示所述
所述SCI0中可以包含一个字段(例如称为“优先级”)，其指示的值可以与在所述资源r0上实际执行的传输有关。
例如，若在所述资源r0上实际执行的传输中包含所述PSSCH0，且包含所述所述和所述则所述“优先级”字段可以按下面中的一种方式定义：
●所述“优先级”字段用于指示所述和所述中优先级较高者。
●所述“优先级”字段用于指示所述和所述中优先级较高者。
●所述“优先级”字段用于指示所述和所述中优先级较低者。
●所述“优先级”字段用于指示所述和所述中优先级较低者。
●所述“优先级”字段用于指示所述所述所述所述MAC PDU中的所有逻辑信道(如果有 的话)以及所有MAC CE(如果有的话)中的最高优先级。
●所述“优先级”字段用于指示所述所述所述所述MAC PDU中的所有逻辑信道(如果有的话)以及一个MAC CE(如果有的话)中的最高优先级。
●所述“优先级”字段用于指示所述所述所述所述MAC PDU中的所有逻辑信道(如果有的话)以及所有MAC CE(如果有的话)中的最低优先级。
●所述“优先级”字段用于指示所述所述所述所述MAC PDU中的所有逻辑信道(如果有的话)以及一个MAC CE(如果有的话)中的最低优先级。
又如，若在所述资源r0上实际执行的传输中包含所述所述和所述且不包含所述PSSCH0，则所述“优先级”字段可以按下面中的一种方式定义：
●所述“优先级”字段用于指示所述
●所述“优先级”字段用于指示所述
●所述“优先级”字段用于指示所述
又如，若在所述资源r0上实际执行的传输中包含所述PSSCH0，且不包含所述所述和所述则所述“优先级”字段用于指示所述
此外，在步骤S103，传输所述SCI。例如，在所述资源池e0中传输携带所述SCI0的所述PSCCH0和/或所述PSSCH0，或者，额外地，所述所述和所述
这样，根据实施例一所述，本发明提供了一种方法，根据PSSCH中携带的MAC PDU的优先级以及复用在所述PSSCH中的一个或多个SL-PRS的优先级，推导SCI中指示的优先级值。这使得在SCI中指示的优先级值可以更好地体现更高层协议期望的优先级处理方式。
实施例二
下面结合图2来说明本发明的实施例二的由UE执行的方法。
图2示出了根据本发明的实施例二的由UE执行的方法对应的流程图。
如图2所示，在本发明的实施例二中，UE执行的步骤包括：步骤S201和步骤S203。
所述UE可以记为UE-A。
所述UE-A可以是一个锚点UE。
具体地，在步骤S201，执行一项或多项与SL定位有关的测量。
所述一项或多项与SL定位有关的测量可以用于对一个目标UE(例如记为UE-B)的定位。
所述一项或多项与SL定位有关的测量可以由所述UE-B触发，或者由一个其他实体(例如，一个基站；又如，一个定位服务器)触发。
所述一项或多项与SL定位有关的测量可以对应一个或多个测量量。
所述一项或多项与SL定位有关的测量可以包括对个SL-PRS资源的测量，其中，可以是一个大于或等于1的整数(例如， 所述个SL-PRS可以分别记为和
所述所述和所述中的部分或全部可以由所述UE-B传输。
所述所述和所述中的部分或全部可以由所述UE-A和所述UE-B之外的其他一个或多个UE传输。
所述所述和所述可以分别关联一个优先级(例如依次记为和)。所述所述和所述中的最高优先级和最低优先级可以分别记为和所述所述和所述可以对应同一个优先级(例如记为)。所述可以表示所述所述和所述所对应的定位业务(或者，定位会话)的优先级。
此外，在步骤S203，传输与SL定位有关的测量报告。例如，传输所述一项或多项与SL定位有关的测量所对应的测量报告。
所述测量报告可以关联一个优先级(例如记为)。可选地，可以根据一个或多个优先级值确定所述对应的优先级值，其中，所述“一个或多个优先级值”可以包括所述所述和所述中的部分或全部分别对应的优先级值，和/或对应的优先级值，和/或对应的优先级值。具体地，例如，所述对应的优先级值可以等于下面中的一项所对应的优先级值：
●所述
●所述
●所述
所述测量报告可以由一个PSCCH和/或一个PSSCH携带。具体地，例如，所述测量报告可以包含在所述PSCCH和/或所述PSSCH中携带的一个物理层消息或所述物理层消息的一部分(例如，SCI)中，相应地，所述物理层消息或所述物理层消息的一部分的优先级可以根据包括所述在内的一个或多个参数确定。又如，所述测量报告可以包含在所述PSCCH和/或所述PSSCH中携带的一个更高层消息或所述更高层消息的一部分(例如，一个MAC PDU，或者一个MAC PDU中的一个MAC CE；又如，一个RRC消息；又如，一个PC5-RRC消息；又如，一个SLPP(Sidelink Positioning Protocol，侧行定位协议)消息)中，相应地，所述更高层消息或所述更高层消息的一部分的优先级可以根据包括所述在内的一个或多个参数确定(例如，所述测量报告包含在一个MAC CE中，相应地，所述MAC CE的优先级等于所述)。
这样，根据实施例二所述，本发明提供了一种方法，根据所测量的(一个或多个)SL-PRS所关联的优先级中的最高优先级确定相应的测量报告的优先级。这使得与SL定位有关的测量报告可以更好地体现更高层协议期望的优先级处理方式。
实施例三
下面结合图3来说明本发明的实施例三的由UE执行的方法。
图3示出了根据本发明的实施例三的由UE执行的方法对应的流程图。
如图3所示，在本发明的实施例三中，UE执行的步骤包括：步骤S301 和步骤S303。
具体地，在步骤S301，确定一个资源子集(例如记为SA，P)。
例如，根据一个更高层(例如MAC层)实体在时隙n触发的请求，确定所述资源子集SA，P。所述资源子集SA，P可以用于所述更高层实体执行SL-PRS资源的选择或重选(例如，从所述资源子集SA，P中选择一个或多个资源用于SL-PRS传输)。所述资源子集SA，P中的每一个元素(或者称为一个“资源”)可以对应一个或多个SL-PRS资源(或者一个或多个基本SL-PRS资源)。
为触发所述步骤S301，所述更高层实体可以提供一个或多个参数，例如包括下面中的一项或多项：
●一个资源池(例如记为e)。所述资源池e可以是一个定位资源池。
●选择窗口长度(例如记为DB)。
●SL-PRS资源粒度。
●一个优先级值(例如，一个层一优先级值，例如记为PTX)。
可选地，所述SL-PRS资源粒度可以按预定义的或配置的或预配置的方式确定，相应地，所述更高层实体在触发所述步骤S301时不提供所述“SL-PRS资源粒度”。
所述步骤S301可以包含NS301个子步骤，例如按时间先后顺序依次记为子步骤子步骤子步骤其中NS301可以是一个大于或等于1的整数。
例如，在子步骤(其中n0是一个满足0≤n0≤NS301-1的整数，例如n0＝0)中，确定一个候选资源集合(例如记为)；又如，在子步 骤(其中n1是一个满足0≤n1≤NS301-1的整数，例如n1＝1)中，确定一个感测窗口(例如记为WA，P)；又如，在子步骤(其中n2是一个满足0≤n2≤NS301-1的整数，例如n2＝2)中，确定一个信号检测门限(例如记为ThA，P)；又如，在子步骤(其中n3是一个满足0≤n3≤NS301-1的整数，例如n3＝3)中，将所述资源子集SA，P初始化为所有候选资源的集合(即所述集合)；又如，在子步骤(其中n4是一个满足0≤n4≤NS301-1的整数，例如n4＝4)中，执行一个或多个资源排除操作，其中，在每次所述资源排除操作中从所述资源子集SA，P中排除零个或一个或多个资源；又如，在子步骤(其中n5是一个满足0≤n5≤NS301-1的整数，例如n5＝5)中，根据所述资源子集SA，P中的元素的个数(例如记为NA，P)执行一个或多个操作，例如，若所述NA，P小于某个门限值，则调整(例如，递增)所述信号检测门限ThA，P，然后跳转到所述子步骤
所述候选资源集合可以是所述资源池e中满足第一候选资源条件的所有资源，其中，对所述资源池e中的一个资源r，所述第一候选资源条件可以包括下面中的一项或多项(例如，按“与”或者“或”的方式的任意一种组合)：
●所述资源r对应的时域和/或频域和/或码域和/或空域资源属于所述资源池e。
●所述资源r在时间间隔[n+T1，n+T2]内。其中，T1可以是一个预定义或配置或预配置的值，或者是由所述UE自行确定的一个满足一定条件的值；T2可以是一个预定义或配置或预配置的值，或者是由所述UE自行确定的一个满足一定条件的值。所述时间间隔 [n+T1，n+T2]可以称为一个“资源选择窗口”，或者“选择窗口”。
●所述资源r符合所述SL-PRS资源粒度。例如，若所述SL-PRS资源粒度对应一个基本SL-PRS资源，则所述资源r可以是某个SL-PRS资源网格中的一个基本SL-PRS资源；又如，若所述“资源粒度”对应一个SL-PRS资源网格，则所述资源r可以是某个时隙中的一个SL-PRS资源网格。
●所述资源r对应的时域和/或频域和/或码域和/或空域资源上可以传输SL-PRS。例如，在时域，所述资源池e的SL-PRS配置对应的时域资源中包含了所述资源r所对应的(一个或多个)符号。
●所述资源r对应的时域和/或频域和/或码域和/或空域资源没有被“静音”。
●所述资源r所在的时隙没有被“静音”。
可选地，所述候选资源集合中的不同元素所对应的时域资源或频域资源或码域资源或空域资源可以重叠。
可选地，所述候选资源集合中不存在完全相同的两个或多个元素。
所述子步骤中执行的一个或多个资源排除操作可以包括：若所述候选资源集合中的一个资源r满足第一资源排除条件，则将所述资源r从所述候选资源集合中排除。其中，所述第一资源排除条件可以包括下面中的一项或多项(例如，按“与”或者“或”的方式的任意一种组合)：
●所述资源r对应的时域和/或频域和/或码域和/或空域资源中的部分或全部已被其他UE预留。
●所述资源r对应的时域和/或频域和/或码域和/或空域资源已被“静 音”。
●所述资源r所在的时隙已被“静音”。
此外，在步骤S303，向更高层报告所述资源子集。
这样，根据实施例三所述，本发明提供了一种方法，通过配置SL-PRS“静音”选项，以及在确定用于SL-PRS资源选择的资源子集时，排除已被“静音”的时隙中的所有候选资源，极大地提高了SL-PRS的资源配置、资源选择和资源重选的灵活性。
实施例四
下面结合图4来说明本发明的实施例四的由UE执行的方法。
图4示出了根据本发明的实施例四的由UE执行的方法对应的流程图。
如图4所示，在本发明的实施例四中，UE执行的步骤包括：步骤S401和步骤S403。
具体地，在步骤S401，接收SCI(例如，记为SCI0)。例如，在资源池e0中的时隙接收所述SCI0。
所述SCI0可以是一阶段SCI，或者是两阶段SCI。例如，若所述资源池e0是一个定位资源池，则所述SCI0是一阶段SCI。又如，若所述资源池e0是一个共享资源池，则所述SCI0是两阶段SCI。又如，所述SCI0是两阶段SCI(即与所述资源池e0的类型无关)。
所述SCI0的部分或全部(例如，所述SCI0中的第一阶段SCI)可以由一个PSCCH(例如，记为PSCCH0)携带。可以认为所述SCI0(或者，所 述SCI0中的第一阶段SCI)关联所述PSCCH0。
所述SCI0的部分或全部(例如，所述SCI0中的第二阶段SCI)可以复用在为所述PSCCH0关联(或者，调度)的PSSCH(例如，记为PSSCH0)分配的资源中。
所述SCI0可以指示一个“SL-PRS资源集”。例如，所述“SL-PRS资源集”对应所述资源池e0的时隙集合的一个子集(例如记为其中)。具体地，例如，可以在所述SCI0中指示所述集合的索引j0。
所述SCI0可以指示所述资源池e0中的一个或多个时隙(例如，相应的时隙集合可以记为其中可以是一个大于或等于1的整数)。具体地，例如，可以在所述SCI0中指示所述资源池e0中的时隙索引偏移所述一个或多个时隙可以是所述集合中的时隙，相应地，可以在所述SCI0中指示所述一个或多个时隙在所述集合中的时隙索引偏移。
所述SCI0可以指示一个资源索引集合(例如记为 其中可以是一个大于或等于1的整数)。
此外，在步骤S403，确定所述SCI中指示的(一个或多个)SL-PRS资源(例如将相应的集合记为其中可以是一个大于或等于1的整数)。
所述集合可以包括在一个或多个资源指示时间间隔(例如分别记为其中可以 是一个大于或等于1的整数)内分别确定的所有SL-PRS资源，其中，在每个所述资源指示时间间隔内确定SL-PRS资源的方式可以相同。具体地，例如，其中是在资源指示时间间隔内确定的SL-PRS资源组成的集合。
可选地，可以根据SL-PRS资源粒度，确定如何解释(interpret)所述SCI0中的一个或多个字段(例如，一个或多个与SL-PRS资源分配或预留有关的字段)。具体地，例如，若所述SL-PRS资源粒度是一个基本SL-PRS资源，则用于指示一个基本SL-PRS资源，例如所述可以表示其所指示的基本SL-PRS资源在一个资源指示时间间隔内的编号；又如，若所述SL-PRS资源粒度是一个SL-PRS资源网格，则用于指示一个SL-PRS资源网格，例如所述可以表示其所指示的SL-PRS资源网格在一个资源指示时间间隔内的编号。
所述一个或多个资源指示时间间隔可以与SL-PRS资源粒度无关。例如，所述一个或多个资源指示时间间隔可以分别对应所述时隙
所述一个或多个资源指示时间间隔可以根据所述SL-PRS资源粒度确定。例如，若所述SL-PRS资源粒度是一个基本SL-PRS资源，则每个所述资源指示时间间隔可以对应一个SL-PRS资源网格。又如，若所述SL-PRS资源粒度是一个SL-PRS资源网格，则所述一个或多个资源指示时间间隔可以分别对应所述时隙
所述SL-PRS资源粒度可以按预定义或配置或预配置的方式确定。
所述SL-PRS资源粒度可以在所述SCI0中指示。
这样，根据所述实施例四，本发明提供了一种方法，通过在SCI中指示SL-PRS资源粒度，以及根据所指示的SL-PRS资源粒度确定SCI中一个或多个与SL-PRS资源分配或预留有关的字段，极大地提高了SL-PRS资源分配或预留的灵活性。
实施例五
下面结合图5来说明本发明的实施例五的由UE执行的方法。
图5示出了根据本发明的实施例五的由UE执行的方法对应的流程图。
如图5所示，在本发明的实施例五中，UE执行的步骤包括：步骤S501和步骤S503。
具体地，在步骤S501，接收DCI(Downlink Control Information，下行控制信息)。例如，在一个搜索空间集合中监听(monitor)PDCCH(Physical downlink control channel，物理下行控制信道)，并根据第一SL DCI格式解码所接收到的PDCCH中携带的DCI(例如，记为DCI0)。
所述第一SLDCI格式可以用于调度一个或多个SL传输(例如，一个或多个PSCCH和/或PSSCH；又如，一个或多个PSCCH/PSSCH)。例如，所述第一SLDCI格式可以是DCI格式3_0；又如，所述一个或多个SL传输可以是一个SL载波(例如记为c0)中的一个SL带宽片段(例如记为b0)中的一个资源池(例如记为e0)中的一个或多个SL传输，其中，所述SL带宽片段b0可以是所述SL载波c0中唯一的一个SL带宽片段，在这种情况下可以称所述资源池e0为所述SL载波c0中的一个资源池。
所述SL载波c0可以按预定义或配置或预配置的方式确定。例如，所述SL载波c0所对应的SL载波索引(例如记为i0)可以对应一个预定义或配置或预配置的参数，或者根据一个或多个预定义和/或配置和/或预配置的参数确定。
所述SL载波c0可以在所述第一SLDCI格式中指示，例如，通过所述第一SLDCI格式中的一个“载波指示器”(carrier indicator，或者称为载波索引，carrier index)字段指示。具体地，例如，所述载波指示器字段的值可以等于所述索引i0。
所述SL带宽片段b0可以按预定义或配置或预配置的方式确定。例如，所述SL带宽片段b0所对应的SL带宽片段索引(例如记为j0)可以对应一个预定义或配置或预配置的参数，或者根据一个或多个预定义和/或配置和/或预配置的参数确定。
所述SL带宽片段b0可以在所述DCI0中指示，例如，通过所述DCI0中的一个“带宽片段指示器”(bandwidth part indicator，或者称为带宽片段索引，bandwidth part index)字段指示。具体地，例如，所述带宽片段指示器字段的值可以等于所述索引j0。
所述资源池e0可以按预定义或配置或预配置的方式确定。例如，所述资源池e0所对应的资源池索引(例如记为k0)可以对应一个预定义或配置或预配置的参数，或者根据一个或多个预定义和/或配置和/或预配置的参数确定。
所述资源池e0可以在所述DCI0中指示，例如，通过所述DCI0中的一个“资源池指示器”(resource pool indicator，或者称为资源池索引，resource  pool index)字段指示。具体地，例如，所述资源池指示器字段的值可以等于所述索引k0。
所述DCI0的部分或全部内容(例如，除包括所述资源池指示器在内的一个或多个字段以外的所有字段)可以由所述资源池e0的一个或多个参数的值(例如，所述资源池e0的类型；又如，所述资源池e0所在的资源池集合)确定。
例如，若所述资源池e0是一个定位资源池(或者，若所述资源池e0所对应的资源池索引属于第一资源池索引集合)，则所述DCI0中包括(或者，只包括)第一字段集合中的字段和第二字段集合中的字段。
又如，若所述资源池e0是一个共享资源池(或者，若所述资源池e0所对应的资源池索引属于第二资源池索引集合)，则所述DCI0中包括(或者，只包括)第一字段集合中的字段和第三字段集合中的字段。
所述第一字段集合中可以包含零个、一个或多个字段。例如，所述第一字段集合中可以包含下面中的一项或多项：
●所述载波指示器字段。
●所述带宽片段指示器字段。
●所述资源池指示器字段。
●一个“时间间隔”字段。
所述第二字段集合中可以包含零个、一个或多个字段。例如，所述第三字段集合中可以包含下面中的一项或多项：
●一个“SL-PRS资源粒度”字段。
●一个“SL-PRS资源集索引”字段。
●一个“SL-PRS频率资源分配”(或者称为“频率资源分配”)字段。
●一个“SL-PRS时间资源分配”(或者称为“时间资源分配”)字段。
所述第三字段集合中可以包含零个、一个或多个字段。例如，所述第三字段集合中可以包含下面中的一项或多项：
●一个“HARQ进程号”字段。
●一个“新数据指示器”字段。
●一个“初始传输的最低子信道索引”字段。
●SCI格式1-A中的频率资源分配(frequency resource assignment)字段。
●SCI格式1-A中的时间资源分配(time resource assignment)字段。
所述第二字段集合和所述第三字段集合可以有一个或多个字段的名称相同，但是字段的大小和/或用途不同。
所述第一资源池索引集合中可以包含一个或多个资源池索引。
所述第二资源池索引集合中可以包含一个或多个资源池索引。
所述第一资源池索引集合和所述第二资源池索引集合的交集可以是空集。
此外，在步骤S503，执行接收到的DCI所指示的操作(例如，执行所述DCI调度的一个或多个SL传输)。
这样，根据实施例五所述，本发明提供了一种方法，根据在DCI所调 度的SL传输所在的资源池的类型，确定所述DCI的部分或全部内容。这使得可以使用一个DCI格式调度不同类型的资源池中的不同类型的和/或用于不同目的的SL传输，简化了DCI格式的设计以及DCI大小对齐所带来的问题，提高了网络调度SL传输的效率。
变形例
下面，利用图6来说明作为一种变形例的可执行本发明上面所详细描述的用户设备执行的方法的用户设备。
图6是表示本发明所涉及的用户设备的框图。
如图6所示，所述用户设备UE60包括处理器601和存储器602。处理器601例如可以包括微处理器、微控制器、嵌入式处理器等。存储器602例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器602上存储有程序指令。该指令在由处理器601运行时，可以执行本发明详细描述的由用户设备执行的上述方法。
上文已经结合优选实施例对本发明的方法和涉及的用户设备进行了描述。本领域技术人员可以理解，上面示出的方法仅是示例性的，而且以上说明的各实施例在不发生矛盾的情况下能够相互组合。本发明的方法并不局限于上面示出的步骤和顺序。上面示出的用户设备可以包括更多的模块。上文中示出的各种标识仅是示例性的而不是限制性的，本发明并不局限于作为这些标识的示例的具体信元。本领域技术人员根据所示实施例的 教导可以进行许多变化和修改。
本领域技术人员应该理解，任何一个集合是它本身的子集；空集是任何集合的子集；数学表达式或数学等式或数学不等式的部分或全部可以进行一定程度的简化或者变换或者重写(例如合并常数项，又如交换两个加法项，又如交换两个乘法项，又如将一个项改变正负号后从等式或不等式的左边移动到右边，又如将一个项改变正负号后从等式或不等式的右边移动到左边，等等)，简化或者变换或者重写前后的数学表达式或数学等式或数学不等式可以认为是等同的。
应该理解，本发明的上述实施例可以通过软件、硬件或者软件和硬件两者的结合来实现。例如，上述实施例中的用户设备内部的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路器件、数字电路器件、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
在本发明中，“基站”可以指具有一定发射功率和一定覆盖面积的移动通信数据和/或控制交换中心，例如包括资源分配调度、数据接收和传输等功能。“用户设备”可以指用户移动终端，例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。
此外，这里所公开的本发明的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本发明的上述技术方案。当在计算系统的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本发明实 施例所述的操作(方法)。本发明的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可读介质上的软件、代码和/或其他数据结构、或者诸如一个或多个ROM或RAM或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本发明实施例所描述的技术方案。
此外，上述每个实施例中所使用的用户设备的每个功能模块或各个特征可以由电路实现或执行，所述电路通常为一个或多个集成电路。设计用于执行本说明书中所描述的各个功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)或通用集成电路、现场可编程门阵列(FPGA)或其他可编程逻辑器件、分立的门或晶体管逻辑、或分立的硬件组件、或以上器件的任意组合。通用处理器可以是微处理器，或者所述处理器可以是现有的处理器、控制器、微控制器或状态机。上述通用处理器或每个电路可以由数字电路配置，或者可以由逻辑电路配置。此外，当由于半导体技术的进步，出现了能够替代目前的集成电路的先进技术时，本发明也可以使用利用该先进技术得到的集成电路。
尽管以上已经结合本发明的优选实施例示出了本发明，但是本领域的技术人员将会理解，在不脱离本发明的精神和范围的情况下，可以对本发明进行各种修改、替换和改变。因此，本发明不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。

Claims (2)

  1. 一种由用户设备UE执行的方法，其特征在于包括：
    确定SCI的内容，其中
    所述SCI中的优先级字段的值被设置为所述SCI关联的PSSCH所携带的MAC PDU对应的所有逻辑信道的优先级、所有MAC CE的优先级、以及复用在所述PSSCH所在的时频资源中的SL-PRS的优先级中的最高优先级所对应的优先级值，以及
    传输所述SCI。
  2. 一种用户设备，包括：
    处理器；以及
    存储器，存储有指令，
    其中，所述指令在由所述处理器运行时执行根据权利要求1中所述的方法。
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