Method performed by user equipment and user equipment

Abstract

According to the present invention, a method executed by a user equipment is proposed, which is characterized by comprising: obtaining indication information related to resource allocation; and determining time-frequency resources according to the indication information, wherein is a positive integer greater than or equal to 1, wherein the indication information related to resource allocation includes information indicated by straight control information SCI, and the information indicated by SCI includes a time resource allocation indication value TRIV and / or a frequency resource allocation indication value FRIV.

Description

Technical Field

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

[0002] NR SL operation may support indicating one or more time / frequency resources in the SCI, for example, via the first stage SCI (1 st The "frequency resource allocation" field in the first-stage SCI indicates frequency domain resources, and the "time resource allocation" field in the first-stage SCI indicates time domain resources. How to determine the location and / or size of one or more frequency domain resources indicated according to the value of the "frequency resource allocation" field, and how to determine the location of one or more time domain resources indicated according to the value of the "time resource allocation" field, are problems that need to be solved in SCI design.

[0003] Prior Art Literature

[0004] Non-patent literature

[0005] Non-patent document 1: RP-152293, New WI proposal: Support for V2V services based on LTE sidelink

[0006] Non-patent document 2: RP-170798, New WID on 3GPP V2X Phase 2

[0007] Non-patent document 3: RP-170855, New WID on New Radio Access Technology

[0008] Non-Patent Document 4: RP-190766, New WID on 5G V2X with NR sidelink Summary of the invention

[0009] In order to solve at least part of the above problems, the present invention provides a method performed by a user equipment and the user equipment, so that a UE sending an SCI can efficiently and unambiguously indicate the allocated time-frequency resources to a UE receiving the SCI.

[0010] According to the present invention, a method performed by a user equipment is proposed, characterized in that it includes: obtaining indication information related to resource allocation; and determining according to the indication information time-frequency resources, of which is a positive integer greater than or equal to 1, wherein the indication information related to resource allocation includes information indicated by straight control information SCI, and the information indicated by SCI includes a time resource allocation indication value TRIV and / or a frequency resource allocation indication value FRIV.

[0011] Preferably, the time slot t1 where the first time-frequency resource is located and its starting subchannel f1 are determined according to a physical direct control channel PSCCH carrying the SCI.

[0012] Preferably, the time resource allocation indicator value TRIV is used to determine and the time slots where each time-frequency resource other than the first time-frequency resource is located; and determining the number m of sub-channels occupied by each time-frequency resource and the starting sub-channel of each time-frequency resource other than the first time-frequency resource according to the frequency resource allocation indication value FRIV.

[0013] Preferably, the value of the time resource allocation indicator TRIV corresponds to In the case of, the time resource allocation indication value TRIV is used to indicate the time slot t2 where the second time-frequency resource is located and the time slot t3 where the third time-frequency resource is located,

[0014] in,

[0015] like but

[0016] TRIV=30·(Δt 2，1 -1)+(31-Δt 3，1 )+32

[0017] Otherwise TRIV=30·(30-Δt 2，1 +1)+(30-1-(31-Δt 3，1 ))+32,

[0018] Where Δt 2，1 is the offset between t1 and t2, Δt 3，1 is the offset between t1 and t3.

[0019] Preferably, if the maximum number of allocatable time-frequency resources is m and the starting subchannel f2 of the second time-frequency resource are determined according to the frequency resource allocation indication value FRIV,

[0020] Here, FRIV can be defined as follows:

[0021]

[0022] in Indicates the number of sub-channels occupied by the resource pool.

[0023] Preferably, if the maximum number of allocatable time-frequency resources is m, the starting subchannel f2 of the second time-frequency resource and the starting subchannel f3 of the third time-frequency resource are determined according to the frequency resource allocation indication value FRIV,

[0024] Here, FRIV is defined as follows:

[0025]

[0026] Or FRIV is defined as follows:

[0027]

[0028] in, Indicates the number of sub-channels occupied by the resource pool.

[0029] Preferably, if Head The determined value of f2 does not indicate the starting subchannel of any time-frequency resource.

[0030] Preferably, if and The determined values ​​of f2 and f3 do not indicate the starting subchannel of any time-frequency resource.

[0031] Preferably, if and The determined value of f3 does not indicate the starting subchannel of any time-frequency resource.

[0032] In addition, according to the present invention, a user equipment is proposed, comprising: a processor; and a memory storing instructions, wherein the instructions execute the above method when executed by the processor.

[0033] Therefore, the present invention provides a method, by providing a mapping from the "frequency resource allocation" in the first stage SCI to the frequency parameters of the allocated time-frequency resources (such as the number of subchannels occupied by each allocated time-frequency resource, the starting subchannel of each of the part or all of the allocated time-frequency resources), and / or a mapping from the "time resource allocation" field in the first stage SCI to the time parameters of the allocated time-frequency resources (such as the time slot in which each of the part or all of the allocated time-frequency resources is located), so that the UE sending the SCI can efficiently and unambiguously indicate the allocated time-frequency resources to the UE receiving the SCI. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and other features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0035] Figure 1FIG. 1 is an example showing multiplexing of PSCCH and PSSCH on time-frequency resources.

[0036] Figure 2 is a flowchart showing a method executed by a user equipment according to the first embodiment of the present invention.

[0037] Figure 3 FIG. 4 is an example of parameters of various time-frequency resources allocated by the method executed by the user equipment according to the first embodiment of the present invention.

[0038] Figure 4 A block diagram of a user equipment UE involved in the present invention is shown. DETAILED DESCRIPTION

[0039] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the present invention should not be 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 invention are omitted to prevent confusion in understanding the present invention.

[0040] The following uses the 5G mobile communication system and its subsequent evolution versions as example application environments to specifically describe multiple embodiments of the present invention. However, it should be noted that the present invention is not limited to the following embodiments, but is applicable to more other wireless communication systems, such as communication systems after 5G and 4G mobile communication systems before 5G.

[0041] The following describes some of the terms involved in the present invention. Unless otherwise specified, the terms involved in the present invention are defined herein. The terms given in the present invention may be named differently in LTE, LTE-Advanced, LTE-Advanced Pro, NR and subsequent communication systems, but unified terms are used in the present invention, and when applied to a specific system, they can be replaced by the terms used in the corresponding system.

[0042] 3GPP: 3rd Generation Partnership Project

[0043] AS: Access Stratum, access layer

[0044] BWP: Bandwidth Part, bandwidth fragment

[0045] CA: Carrier Aggregation

[0046] CCE: control-channel element

[0047] CORESET: control-resource set, control resource set

[0048] CP: Cyclic Prefix

[0049] CP-OFDM: Cyclic Prefix Orthogonal Frequency Division Multiplexing

[0050] CRB: Common Resource Block

[0051] CRC: Cyclic Redundancy Check

[0052] CSI: Channel-state Information, channel state information

[0053] CSS: Common Search Space

[0054] DC: Dual Connectivity

[0055] DCI: Downlink Control Information, downlink control information

[0056] DFN: Direct Frame Number, direct frame number

[0057] DFT-s-OFDM: Discrete Fourier Transformation Spread Orthogonal Frequency Division Multiplexing

[0058] DL: Downlink

[0059] DL-SCH: Downlink Shared Channel, downlink shared channel

[0060] DM-RS: Demodulation reference signal

[0061] eMBB: Enhanced Mobile Broadband

[0062] eNB: E-UTRAN Node B, E-UTRAN Node B

[0063] E-UTRAN: Evolved UMTS Terrestrial Radio Access Network

[0064] FDD: Frequency Division Duplex

[0065] FDRA: Frequency Domain Resource Assignment, frequency domain resource allocation

[0066] FR1: Frequency Range 1, frequency range 1

[0067] FR2: Frequency Range 1, frequency range 2

[0068] GLONASS: GLObal NAvigation Satellite System

[0069] gNB: NR Node B

[0070] GNSS: Global Navigation Satellite System

[0071] GPS: Global Positioning System

[0072] HARQ: Hybrid Automatic Repeat Request

[0073] ID:Identity (or Identifier), identity, identifier

[0074] IE: Information Element

[0075] IP: Internet Protocol

[0076] LCID: Logical Channel ID, logical channel identifier

[0077] LTE: Long Term Evolution

[0078] LTE-A: Long Term Evolution-Advanced

[0079] MAC: Medium Access Control

[0080] MAC CE: MAC Control Element

[0081] MCG: Master Cell Group

[0082] MIB: Master Information Block

[0083] MIB-SL: Master Information Block-Sidelink, Master Information Block-Sidelink

[0084] MIB-SL-V2X: Master Information Block-Sidelink-V2X, Master Information Block-Straight-Vehicle to Any Entity

[0085] MIB-V2X: Master Information Block-V2X, master information block-vehicle to any entity

[0086] mMTC: massive Machine Type Communication

[0087] NAS: Non-Access-Stratum

[0088] NDI: New Data Indicator, new data indicator

[0089] NR — New Radio

[0090] NUL: Normal Uplink, normal uplink

[0091] OFDM: Orthogonal Frequency Division Multiplexing

[0092] PBCH: Physical Broadcast Channel

[0093] PDCCH: Physical Downlink Control Channel, physical downlink control channel

[0094] PDCP: Packet Data Convergence Protocol, Packet Data Convergence Protocol

[0095] PDSCH: Physical Downlink Shared Channel, physical downlink shared channel

[0096] PSBCH: Physical Sidelink Broadcast Channel, physical sidelink broadcast channel

[0097] PSCCH: Physical Sidelink Control Channel

[0098] PSFCH: Physical Sidelink Feedback Channel, physical sidelink feedback channel

[0099] PSSCH: Physical Sidelink Shared Channel, physical straight shared channel

[0100] PRB: Physical Resource Block, physical resource block

[0101] PSS: Primary Synchronization Signal

[0102] PSS-SL: Primary Synchronization Signal for Sidelink, straight main synchronization signal

[0103] PSSS: Primary Sidelink Synchronization Signal, main straight synchronization signal

[0104] PTAG: Primary Timing Advance Group

[0105] PUSCH: Physical uplink shared channel, physical uplink shared channel

[0106] PUCCH: Physical uplink control channel, physical uplink control channel

[0107] QCL: Quasi co-location

[0108] QoS: Quality of Service

[0109] QZSS: Quasi-Zenith Satellite System

[0110] RAR: Random Access Response, random access response

[0111] RB: Resource Block

[0112] RE:Resource Element

[0113] REG: resource-element group, resource element group

[0114] RF: Radio Frequency

[0115] RLC: Radio Link Control, wireless link control protocol

[0116] RNTI: Radio-Network Temporary Identifier, wireless network temporary identifier

[0117] RRC: Radio Resource Control

[0118] RV: Redundancy Version, redundant version

[0119] S-BWP: Sidelink Bandwidth Part, straight bandwidth segment

[0120] S-MIB: Sidelink Master Information Block, straight line master information block

[0121] S-PSS: Sidelink Primary Synchronization Signal, straight main synchronization signal

[0122] S-SSB: Sidelink SS / PBCH block, straight synchronization signal / physical broadcast channel block

[0123] S-SSS: Sidelink Secondary Synchronization Signal, straight auxiliary synchronization signal

[0124] SCG: Secondary Cell Group

[0125] SCI: Sidelink Control Information, straight control information

[0126] SCS: Subcarrier Spacing, subcarrier spacing

[0127] SDAP: Service Data Adaptation Protocol, business data adaptation protocol

[0128] SFN: System Frame Number, system frame number

[0129] SIB: System Information Block

[0130] SL: Sidelink, straight

[0131] SL BWP: Sidelink Bandwidth Part, straight bandwidth segment

[0132] SL MIB: Sidelink Master Information Block, straight master information block

[0133] SL PSS: Sidelink Primary Synchronization Signal, straight main synchronization signal

[0134] SL SS:Sidelink Synchronisation Signal,Straight synchronization signal

[0135] SL SSID: Sidelink Synchronization Signal Identity (or SidelinkSynchronization Signal Identifier), straight synchronization signal identifier

[0136] SL SSB: Sidelink SS / PBCH block, straight synchronization signal / physical broadcast channel block

[0137] SL SSS: Sidelink Secondary Synchronization Signal, straight auxiliary synchronization signal

[0138] SLSS: Sidelink Synchronisation Signal, straight synchronization signal

[0139] SLSS ID: Sidelink Synchronization Signal Identity (or SidelinkSynchronization Signal Identifier), straight synchronization signal identifier

[0140] SLSSID: Sidelink Synchronization Signal Identity (or SidelinkSynchronization Signal Identifier), straight synchronization signal identifier

[0141] SpCell:Special Cell, special cell

[0142] SRS: Sounding Reference Signal, detection reference signal

[0143] SSB: SS / PBCH block, synchronization signal / physical broadcast channel block

[0144] SSB-SL: SS / PBCH block for Sidelink, straight synchronization signal / physical broadcast channel block

[0145] SSS: Secondary Synchronization Signal, auxiliary synchronization signal

[0146] SSS-SL: Secondary Synchronization Signal for Sidelink, straight auxiliary synchronization signal

[0147] SSSB: Sidelink SS / PBCH block, straight synchronization signal / physical broadcast channel block

[0148] SSSS: Secondary Sidelink Synchronization Signal, auxiliary straight line synchronization signal

[0149] STAG: Secondary Timing Advance Group

[0150] Sub-channel: sub-channel

[0151] SUL: Supplementary Uplink

[0152] TA: Timing Advance

[0153] TAG: Timing Advance Group, timing advance group

[0154] TB: Transport Block

[0155] TCP: Transmission Control Protocol

[0156] TDD: Time Division Duplex

[0157] TPC: Transmit power control

[0158] UE:User Equipment

[0159] UL: Uplink

[0160] UMTS: Universal Mobile Telecommunications System

[0161] URLLC: Ultra-Reliable and Low Laency Communication

[0162] USS: UE-specific Search Space, UE-specific search space

[0163] V2I: Vehicle-to-Infrastructure

[0164] V2N: Vehicle-to-network

[0165] V2P: Vehicle-to-Pedestrian

[0166] V2V: Vehicle-to-vehicle

[0167] V2X: Vehicle-to-everything

[0168] VRB: Virtual Resource Block

[0169] In all embodiments and implementations of the present invention, unless otherwise specified:

[0170] ● Optionally, where applicable, "send" can be replaced by "transmit".

[0171] ● Optionally, "higher layer" may refer to one or more protocol layers or protocol sublayers above the physical layer, such as the MAC layer, the RLC layer, the PDCP layer, the PC5RRC layer, the PC5-S layer, the RRC layer, the V2X layer, the application layer, the V2X application layer, and so on.

[0172] ● Optionally, "pre-configuration" may be pre-configured via a higher layer protocol / signaling, such as pre-setting (e.g., pre-setting according to the specification of the higher layer protocol) in a specific storage location in the UE, or pre-setting (e.g., pre-setting according to the specification of the higher layer protocol) in a specific storage location accessible to the UE.

[0173] ● Optionally, "configuration" may be configured through a higher layer protocol / signaling, such as configuring the UE through RRC signaling.

[0174] ●Optionally, the "starting subcarrier (or resource block, or resource block group, or subchannel)" can also be called the "first subcarrier (or resource block, or resource block group, or subchannel)", or the "subcarrier with the smallest number (or resource block, or resource block group, or subchannel)", or the "lowest subcarrier (or resource block, or resource block group, or subchannel)".

[0175] ●Optionally, time-domain resources can also be called time resources.

[0176] ●Optionally, frequency-domain resources may also be referred to as frequency resources.

[0177] ● Optionally, "symbol" refers to "OFDM symbol".

[0178] ● Optionally, within a time slot, the numbering of OFDM symbols may start from 0. For example, for a normal CP, the set of OFDM symbol numbers within a time slot may be {0, 1, ..., 13}. For another example, for an extended CP, the set of OFDM symbol numbers within a time slot may be {0, 1, ..., 11}.

[0179] ●Optionally, the resource block may refer to a virtual resource block (VRB), a physical resource block (PRB), a common resource block (CRB), or a resource block defined in other ways.

[0180] ● Optionally, within a resource block, the subcarrier numbering may start from 0. For example, the set of subcarrier numbers within a resource block may be {0, 1, ..., 11}.

[0181] ● Optionally, the offset of one metric value (denoted as x2) relative to another metric value (denoted as x1) can also be referred to as the offset from the latter to the former. For example, the offset of time slot t2 relative to time slot t1 can also be referred to as the offset from time slot t1 to time slot t2, and vice versa.

[0182] ● Optionally, "time slot t" may refer to the time slot numbered t.

[0183] ● Optionally, the time slots may be numbered in a subframe. For example, for a 30kHz SCS, the number of a time slot in a subframe may be a value of any element in the set {0, 1}.

[0184] ● Optionally, the time slots may be numbered within a half-frame. For example, for a 30kHz SCS, the number of a time slot within a subframe may be a value of any element in the set {0, 1, ..., 9}.

[0185] ● Optionally, the time slots may be numbered within a frame. For example, for a 30kHz SCS, the number of a time slot within a subframe may be a value of any element in the set {0, 1, ..., 19}.

[0186] ● Optionally, the time slots may be numbered within a frame numbering period (eg, 1024 frames). For example, for a 30kHz SCS, the number of a time slot within a 1024 frame may be a value of any element in the set {0, 1, ..., 20479}.

[0187] ● Optionally, the time slots may be numbered starting from any time slot and with any number of time slots as a period. For example, time slots t1, t2, ..., t N Part or all of the may be located in the same subframe or half-frame or frame or frame numbering period (eg, 1024 frames), or may be located in different subframes or half-frames or frames or frame numbering periods (eg, 1024 frames).

[0188] ● Optionally, for time slots t1, t2, ..., t N , where applicable, t i (2≤i≤N) relative to the offset of t1 (e.g. Δt i，1 =t i -t1) means t i Optionally, it can be considered that t1=0 at this time.

[0189] In communications based on D2D (Device to Device) technology, the interface between devices (also called User Equipment, UE) can be called a PC5 interface, and the corresponding transmission link in the physical layer can be called a "straight" or "sidelink" (SL) link, which is used to distinguish between an uplink (UL) link and a downlink (DL) link. Communication based on the SL link can be called SL communication (sidelink communication). The SL link based on LTE technology can be called an LTE SL link. The SL link based on NR technology can be called an NR SL link. 5GV2X communication can be based on LTE SL or NR SL. Unless otherwise specified below, "SL" refers to NR SL.

[0190] The physical layer of the SL interface can support one or more modes of transmission in one or more scenarios including in-coverage, out-of-coverage and partial-coverage, such as broadcast transmission, multicast transmission, unicast transmission, etc.

[0191] For FR1 (Frequency Range 1), the SCS (subcarrier spacing, denoted as Δf, in kHz) corresponding to the SL link can be 15kHz (normal CP), or 30kHz (normal CP), or 60kHz (normal CP or extended CP); for FR2 (Frequency Range 2), the SCS corresponding to the SL link can be 60kHz (normal CP or extended CP), or 120kHz (normal CP). Each SCS corresponds to an SCS configuration (SCS configuration, denoted as μ), for example, Δf=15kHz corresponds to μ=0, Δf=30kHz corresponds to μ=1, Δf=60kHz corresponds to μ=2, Δf=120kHz corresponds to μ=3, and so on; for any given μ, Δf=2 μ ·15kHz. μ can be the SCS configuration of the SL carrier; for example, all SL transmissions in a SL carrier use the same SCS configuration and / or the same CP. μ can be the SCS configuration of the SL BWP (Sidelink Bandwidth Part, or S-BWP, or SBWP, or SL-BWP, or BWP-SL, or simply BWP); for example, all SL transmissions in a SL BWP use the same SCS configuration and / or the same CP. μ can be the SCS configuration of a resource pool; for example, all SL transmissions in a resource pool use the same SCS configuration and / or the same CP.

[0192] Signals and channels related to SL operation may include:

[0193] ●SL PSS (Sidelink Primary Synchronization Signal), also known as S-PSS, SPSS, SL-PSS, PSS-SL, or PSSS (Primary Sidelink Synchronization Signal), etc.

[0194] ●SL SSS (Sidelink Secondary Synchronization Signal), also known as S-SSS, or SSSS (Sidelink Secondary Synchronization Signal), or SL-SSS, or SSS-SL, or SSSS (Secondary Sidelink Synchronization Signal), and so on.

[0195] ●PSBCH (Physical Sidelink Broadcast Channel).

[0196] ●PSCCH (Physical Sidelink Control Channel).

[0197] ●PSSCH (Physical Sidelink Shared Channel).

[0198] ●PSFCH (Physical Sidelink Feedback Channel).

[0199] SL PSS, SL SSS and PSBCH together can be organized into a block form on time / frequency resources, for example, called SL SSB (Sidelink Synchronization Signal / PSBCH block, or SSS / PSBCHblock, direct synchronization signal / physical direct broadcast channel block), or SSS / PSBCH block, or S-SS / PSBCH block, or S-SSB, or SSSB, or SL-SSB, or SSB-SL. The transmission bandwidth of SL SSB (for example, 11 resource blocks) can be located within the corresponding SL carrier (for example, within a SL BWP configured within the SL carrier). SL PSS and / or SL SSS may carry SL SSID (Sidelink Synchronization Identity, or Sidelink Synchronization Identifier, straight-line synchronization identifier, or Sidelink SynchronizationSignal Identity, or Sidelink Synchronization Signal Identifier, straight-line synchronization signal identifier, or SL-SSID, or SSID-SL, or SLSSID, or SLSS ID, or S-SSID, etc.), and PSBCH may carry SL MIB (Sidelink Master Information Block, straight-line master information block, or SL-MIB, or S-MIB, or MIB-SL). SL MIB may include configuration information of the SL link, such as information related to the direct frame number (or frame number), direct half-frame number (or half-frame number), direct subframe number (or subframe number), or direct time slot number (or time slot number) where the PSBCH (or the corresponding SL SSB) carrying the SL MIB is located.

[0200] On the SL link, the time domain and / or frequency domain resources used to transmit the SL SSB can be configured through high-level parameters. For example, in the frequency domain, the position of the SL SSB in the frequency domain can be configured through the parameter absoluteFrequencySSB-SL. For another example, in the time domain, within a period of 16 frames, the number of SL SSBs (e.g., denoted as ) can be set by the parameter numSSBwithinPeriod-SL, where the number (or index) is i S-SSB The index of the time slot where the SL SSB is located in the period of 16 frames can be in It can be configured by the parameter timeOffsetSSB-SL. You can use the parameter Configuration.

[0201] Sometimes, it can be considered that the time domain resources and / or frequency domain resources configured for the SL SSB in the SL carrier correspond to the candidate SL SSB (or SL SSB candidate). On the time domain and / or frequency domain resources corresponding to a candidate SL SSB, there may be one or more SL SSB transmissions (for example, from different UEs) at the same time, or there may not be any SL SSB transmissions.

[0202] The synchronization sources (synchronization source, or synchronization reference, or synchronization reference source) related to SL synchronization may include GNSS (Global navigation satellite system), gNB, eNB and UE (e.g., NR UE, also such as LTE UE, also such as NR UE or LTE UE). A UE that serves as a synchronization source (e.g., a UE that transmits SL SSB) may be referred to as SyncRefUE.

[0203] Examples of GNSS may include GPS (Global Positioning System), GLONASS (GLObal NAvigation Satellite System), BeiDou (Beidou Navigation Satellite System), Galileo (Galileo Navigation Satellite System), QZSS (Quasi-Zenith Satellite System), and the like.

[0204] One or more (e.g., one) SL BWPs may be configured in a SL carrier. In each SL BWP, the starting symbol of the SL time domain resource in a time slot may be configured by the parameter startSLsymbols, and the number of symbols of the SL time domain resource in a time slot may be configured by the parameter lengthSLsymbols. The symbols of the SL time domain resource in a time slot may be contiguous, for example, from symbol 7 to symbol 13 (i.e., symbols 7, 8, 9, 10, 11, 12, and 13).

[0205] SL transmission can be performed in a specific resource pool. One or more resource pools can be configured in a SL BWP. In each resource pool,

[0206] ● In the frequency domain, the position of the starting resource block of the starting subchannel of the resource pool within the SL BWP can be configured through the parameter startRB-Subchannel.

[0207] ● In the frequency domain, the number of subchannels occupied by the resource pool can be configured by the parameter numSubchannel (denoted as ). The subchannels may be continuous in the frequency domain.

[0208] ● In the frequency domain, each subchannel can be composed of one or more resource blocks. The specific number of resource blocks (called the subchannel size, for example, denoted by n) subChannelsize ) can be configured by the parameter subchannelsize. subChannelsize The resource blocks may be continuous in the frequency domain.

[0209] ●In the frequency domain, the sub-channels in a resource pool can be numbered in ascending order of frequency: Among them, the subchannel numbered i can be called "subchannel i"

[0210] ●In the time domain, one or more time slots that can be used for the resource pool (or belong to the resource pool) that appear periodically can be configured through the parameter timeresourcepool (for example, through a time slot bitmap), where the size of the period can be configured through the parameter periodResourcePool.

[0211] The allocation methods of resources related to SL operations (such as time domain resources, frequency domain resources, and code domain resources) can be classified as follows:

[0212] ●Mode 1: The base station schedules SL resources for SL transmission.

[0213] ● Mode 2: The UE determines the SL resources used for SL transmission (ie, the base station does not participate in the scheduling of SL resources). For example, the UE performing the SL transmission operation autonomously determines the SL resources used for SL transmission.

[0214] UE can schedule data transmission through SCI (Sidelink Control Information). SL operation can support "two-stage SCI", in which the first stage SCI (1 st -stage SCI) may include information such as resource reservation and / or resource allocation, so that all UEs that are monitoring the SL link can sense the resource reservation and / or resource allocation; the second stage SCI (2 nd -stage SCI) may include other information, such as information related to HARQ feedback, etc. Unless otherwise specified below, when "SCI" ​​is mentioned alone, it may include only the first-stage SCI, only the second-stage SCI, or both the first-stage SCI and the second-stage SCI.

[0215] The following are some examples of information that may be included in a Phase I SCI:

[0216] ●Priority.

[0217] ●Frequency resource allocation (Frequency resource assignment).

[0218] ●Time resource assignment.

[0219] ●Resource reservation period.

[0220] ●The second stage SCI format (2 nd -stage SCI format).

[0221] The following are some examples of information that may be included in a Stage 2 SCI:

[0222] ●Source Layer-1 ID (also called Layer-1 Source ID, layer-1 source identifier, also called Physical Layer Source ID, physical layer source identifier, or (when the context is clear) Source ID, source identifier).

[0223] ●Destination Layer-1 ID (also called Layer-1 Destination ID, layer 1 destination identifier, also called Physical Layer Destination ID, physical layer destination identifier, or (when the context is clear) Destination ID, destination identifier).

[0224] ●HARQ process identifier (HARQ Process ID), or HARQ process number (HARQ Process Number).

[0225] ●New Data Indicator (NDI).

[0226] ●Redundancy Version (RV).

[0227] The first-stage SCI can be carried on the PSCCH. The second-stage SCI can be multiplexed with the data to be transmitted on the PSSCH associated with (or scheduled by) the PSCCH. The PSCCH and its associated PSSCH can be multiplexed in a certain way on the time domain and / or frequency domain resources allocated for SL transmission (for example, the subchannel where the starting resource block of the PSCCH is located is the starting subchannel of the PSSCH to which it is associated. For another example, the starting resource block of the PSCCH is the starting resource block of the starting subchannel of the PSSCH to which it is associated). In addition, it can be considered that the first-stage SCI and / or the corresponding second-stage SCI schedules the PSSCH (or schedules the transmission of the PSSCH, or schedules the transmission of the TB carried in the PSSCH). Figure 1 It shows an example of multiplexing of PSCCH and PSSCH on time-frequency resources, wherein the subchannel where the starting resource block of PSCCH is located is f1, so after detecting PSCCH, the UE can determine that the starting subchannel of PSSCH associated with the PSCCH is f1; the time slot where PSCCH is located is t1, so after detecting PSCCH, the UE can determine that the time slot where PSSCH associated with the PSCCH is located is t1.

[0228] In NR SL, how to determine the value of one or more corresponding parameters according to the value of the "frequency resource allocation" field or the "time resource allocation" field in the first stage SCI is a problem that needs to be solved. For example, the frequency domain parameters (such as the number of occupied subchannels, or the starting subchannel) of each allocated time-frequency resource are determined according to the value of the "frequency resource allocation" field, and the time slot where each allocated time-frequency resource is located is determined according to the value of the "time resource allocation" field.

[0229] [Example 1]

[0230] Combine the following Figure 2 The method executed by the user equipment according to the first embodiment of the present invention is described below.

[0231] Figure 2 is a flowchart showing a method executed by a user equipment according to the first embodiment of the present invention.

[0232] like Figure 2 As shown, in the first embodiment of the present invention, the steps performed by the user equipment UE (also referred to as receiving UE or RX UE in the first embodiment of the present invention) include: step S101 and step S103.

[0233] Specifically, in step S101, indication information related to resource allocation (resource allocation, or resource assignment) is obtained.

[0234] in,

[0235] ●Optionally, the information related to resource allocation may include one or more of the following:

[0236] ◆The starting symbol of the SL time domain resource in a time slot (denoted as ).

[0237] ◆The number of symbols of SL time domain resources in a time slot (denoted as ).

[0238] ◆The size of the time resource allocation window (denoted as W).

[0239] ◆The number of subchannels occupied by a resource pool (e.g., a resource pool related to the resource allocation, denoted as P) (denoted as ).

[0240] ◆The maximum number of allocable time-frequency resources (denoted as ).

[0241] ◆Frequency resource allocation indication value (denoted as FRIV).

[0242] ◆Time resource allocation indication value (denoted as TRIV).

[0243] ● Optionally, the information related to resource allocation may include predefined information. For example, the size of the time resource allocation window may be predefined as W=32 time slots.

[0244] ● Optionally, the information related to resource allocation may include configuration information or pre-configuration information. For example, the starting symbol of the SL time domain resource in a time slot This can be configured or pre-configured through the parameter startSLsymbols. For example, the number of symbols in a time slot of the SL time domain resource It can be configured or pre-configured by the parameter lengthSLsymbols. For example, the number of sub-channels occupied by the resource pool P This can be configured or pre-configured through the parameter numSubchannel. For example, the maximum number of allocable time-frequency resources This can be configured or pre-configured through the maxNumResource parameter. For example, when the maxNumResource parameter is configured to 2 For example, when the parameter maxNumResource is configured to 3 For example, when the parameter maxNumResource is not configured For example, when the parameter maxNumResource is not configured For example, when the parameter maxNumResource is not configured

[0245] ● Optionally, the information related to resource allocation may include information indicated by SCI, such as information indicated by the first-stage SCI, or information indicated by the second-stage SCI, or information jointly indicated by the first-stage SCI and the second-stage SCI.

[0246] in,

[0247] ◆Optionally, the first-stage SCI is determined by detecting (or receiving, for example, including steps such as channel estimation and / or demodulation and / or decoding) a PSCCH carrying the first-stage SCI.

[0248] ◆Optionally, the frequency resource allocation indication value FRIV is determined according to the "frequency resource allocation" field in the first stage SCI. For example, the value of the "frequency resource allocation" field in the first stage SCI is used as the frequency resource allocation indication value FRIV. For another example, the "frequency resource allocation" field in the first stage SCI is composed of the frequency resource allocation indication value FRIV. For another example, the "frequency resource allocation" field in the first stage SCI contains the frequency resource allocation indication value FRIV. Among them,

[0249] ○Optionally, if The size of the "Frequency Resource Allocation" field in the first stage SCI can be Bit.

[0250] ○Optionally, if The size of the "Frequency Resource Allocation" field in the first stage SCI can be Bit.

[0251] ◆Optionally, the time resource allocation indication value TRIV is determined according to the "time resource allocation" field in the first stage SCI. For example, the value of the "time resource allocation" field in the first stage SCI is used as the time resource allocation indication value TRIV. For another example, the "time resource allocation" field in the first stage SCI is composed of the time resource allocation indication value TRIV. For another example, the "time resource allocation" field in the first stage SCI contains the time resource allocation indication value TRIV. Among them,

[0252] ○Optionally, if Then the size of the "Time Resource Allocation" field in the first-stage SCI may be 5 bits.

[0253] ○Optionally, if Then the size of the "Time Resource Allocation" field in the first-stage SCI may be 9 bits.

[0254] In addition, optionally, in step S103, one or more time-frequency resources are determined. For example, time-frequency resources, which are respectively called "time-frequency resource 1", "time-frequency resource 2", ..., "time-frequency resource 3" in chronological order. ”, among which time-frequency resources The time slot, starting subchannel and number of occupied subchannels are respectively time slot t i , subchannel f i and m.

[0255] in,

[0256] ●Optionally, the The number of sub-channels occupied by each time-frequency resource is equal (ie, equal to m).

[0257] ●Optionally, the The time-frequency resources may be the time-frequency resources in the resource pool P.

[0258] ●Optionally,

[0259] ●Optionally,

[0260] ●Optionally, Always equal to 1.

[0261] ●Optionally, Always equal to

[0262] ●Optionally, m≥1.

[0263] ●Optionally,

[0264] ●Optionally,

[0265] ●Optionally,

[0266] ●Optionally, for time-frequency resources

[0267] ●Optionally, for time-frequency resources

[0268] ● Optionally, time slot can be located in a time resource allocation window of length W time slots starting from time slot t1, where:

[0269] ◆Optionally, the W time slots may only include time slots in the resource pool P (for example, there may be zero, one or more time slots that do not belong to the resource pool P between the first time slot and the second time slot in the W time slots).

[0270] ◆Optionally, the W time slots may include time slots in the resource pool P and time slots that do not belong to the resource pool P.

[0271] ● Optionally, time slot They can be represented by their offsets relative to time slot t1 (for example, the offsets relative to time slot t1 in the resource pool P). In this case, if the context is clear, Δt i，1 Indicates t i , or by determining Δt i，1 Determine by Optionally, it can be considered that t1=0 at this time. For example, if Δt 2，1 =1, then time slot t2 may be the next time slot in the resource pool P immediately following time slot t1.

[0272] ●Optionally, if And time-frequency resources are allocated Then the time-frequency resource (i-1) must be allocated.

[0273] ● Optionally, the PSCCH (denoted as PSCCH1) carrying the first-stage SCI and / or the PSSCH (denoted as PSSCH1) associated with the PSCCH1 are transmitted on the time-frequency resource 1.

[0274] ◆Optionally, t1 and / or f1 are determined based on the PSCCH (denoted as PSCCH1) carrying the first-stage SCI. For example, by detecting (or receiving, for example, including steps such as channel estimation and / or demodulation and / or decoding) the PSCCH1, the time slot where the PSCCH1 is located is determined, and then t1 is determined to be equal to the time slot where the PSCCH1 is located. For another example, by detecting (or receiving, for example, including steps such as channel estimation and / or demodulation and / or decoding) the PSCCH1, the subchannel where the starting PRB of the PSCCH1 is located is determined, and then f1 is determined to be equal to the subchannel where the starting PRB of the PSCCH1 is located. Wherein,

[0275] ○ Optionally, the starting PRB of PSCCH1 is the starting PRB of subchannel f1.

[0276] ●Optionally, the A time-frequency resource can be called an "assigned" time-frequency resource.

[0277] ●Optionally, in the Among the time-frequency resources, other time-frequency resources except time-frequency resource 1, namely, "time-frequency resource 2", ..., "time-frequency resource " can be called reserved time-frequency resources. For example, if There are no reserved time-frequency resources. Then there is 1 reserved time-frequency resource.

[0278] ● Optionally, determine according to the time resource allocation indication value TRIV and / or other time domain parameters (e.g., time slot t2 where time-frequency resource 2 is located (e.g., In the case of In the case of ), for example, time slot t3 where time-frequency resource 3 is located (for example, In the case of

[0279] ◆ Optionally, by determining Δt 2，1 Determine t2 by using Δt 2，1 Indicates t2).

[0280] ◆ Optionally, by determining Δt 3，1 Determine t3 by using Δt 3，1 Indicates t3).

[0281] Optionally, one or more values ​​of the time resource allocation indicator TRIV (for example, {0}, {C 10}, where C 10You can take the value of any element in the set S1) Among them,

[0282] ○ Optionally, the corresponding relationship is applicable to

[0283] ○ Optionally, the corresponding relationship is applicable to

[0284] ○ Optionally, the corresponding relationship is applicable to

[0285] ○ Optionally, time slot t2 does not exist at this time.

[0286] ○ Optionally, time slot t3 does not exist at this time.

[0287] Optionally, the time resource allocation indicator TRIV may have one or more values ​​(eg, {1, 2, ..., W-1}, or {C 20 +1, C 20 +2, ..., C 20 +W-1}, where C 20 You can take the value of any element in the set S1) Among them,

[0288] ○ Optionally, the corresponding relationship is applicable to

[0289] ○ Optionally, the corresponding relationship is applicable to

[0290] Optionally, the time resource allocation indicator value TRIV may be used to indicate the time slot t2 where the time-frequency resource 2 is located (for example, using Δt 2，1 For example, TRIV=1 may indicate that time slot t2 is the next time slot immediately following time slot t1 in the resource pool P; for another example, TRIV=v may be used to indicate Δt 2，1 =v (v=1, 2, ..., W-1); for example, TRIV=v can be used to indicate Δt 2，1 =vC 20 (vC 20 =1, 2, ..., W-1).

[0291] ○ Optionally, time slot t3 does not exist at this time.

[0292] Optionally, one or more values ​​of the time resource allocation indicator TRIV (for example Another example Among them C 30 You can take the value of any element in the set S1) situation.

[0293] ○ Optionally, the corresponding relationship is applicable to

[0294] ○ Optionally, the time resource allocation indicator value TRIV can be used to indicate the time slot t2 where the time-frequency resource 2 is located and the time slot t3 where the time-frequency resource 3 is located. For example, TRIV=TRIV′+Δ T , where TRIV′ can be defined as follows:

[0295]

[0296] in,

[0297] ◇ Optionally, Δ T It can be defined in any of the following ways:

[0298] ΔT=C 100 .

[0299] Δ T =W+C 100 .

[0300] in,

[0301] Optionally, C 100 It can take the value of any element in the set S1.

[0302] ◇ Optionally, Δ T，1 It can be defined in any of the following ways:

[0303] Δ T，1 =C 110 .

[0304] Δ T，1 =W+C 110 .

[0305] in,

[0306] Optionally, C 110 It can take the value of any element in the set S1.

[0307] ◇ Optionally, Δ T，2 It can be defined in any of the following ways:

[0308] Δ T，2 =C 120 .

[0309] Δ T，2 =W+C 120 .

[0310] in,

[0311] Optionally, C 120 It can take the value of any element in the set S1.

[0312] ◇ Optionally, "time domain allocation condition 1" can be defined as any one of the following conditions:

[0313]

[0314]

[0315]

[0316]

[0317] in,

[0318] Optionally, C 130 , C 131 and C 132 Each of can take the value of any element in set S1.

[0319] ◇ Optionally, T1 can be defined in any of the following ways:

[0320] T1=30·(Δt 2，1 -1)+(31-Δt 3，1 ).

[0321] T1=30·Δt 2，1 -Δt 3，1 +1.

[0322] T1=(WC 140 )·(Δt 2，1 -C 141 )+((WC 142 )-Δt 3，1 ).

[0323] T1=(WC 140 )·Δt 2，1 -Δt 3，1 +C 143。

[0324] T1=C 144 ·Δt 2，1 -C 145 ·Δt 3，1 +C 146 。

[0325] T1=30·(30-Δt 2，1 +1)+(30-1-(31-Δt 3，1 ))。

[0326] T1=928-30·Δt 2，1 +Δt 3，1 。

[0327] T1=(W-C 140 )·((W-C 140 )-Δt 2，1 +C 147 )+((W-C 140 )-C 148 -((W-C 142 )-Δt 3，1 ))。

[0328] T1=(W-C 140 )·(W-C 140 )-C 149 -(W-C 140 )·Δt 2，1 +Δt 3，1 。

[0329] T1=30·(Δt 3，1 -1)+(31-Δt 2，1 )。

[0330] T1=30·Δt 3，1 -Δt 2，1 +1。

[0331] T1=(W-C 140 )·(Δt 3，1 -C 141 )+((W-C 142 )-Δt 2，1 )。

[0332] T1=(W-C 140 )·Δt 3，1-Δt 2，1 +C 143 .

[0333] T1=C 144 ·Δt 3，1 -C 145 ·Δt 2，1 +C 146 .

[0334] T1=30·(30-Δt 3，1 +1)+(30-1-(31-Δt 2，1 )).

[0335] T1=928-30·Δt 3，1 +Δt 2，1 .

[0336] T1=(WC 140 )·((WC 140 )-Δt 3，1 +C 147 )+((WC 140 )-C 148 -((WC 142 )-Δ t2，1 )).

[0337] T1=(WC 140 )·(WC 140 )-C 149 -(WC 140 )·Δt 3，1 +Δt 2，1 .

[0338] in,

[0339] Optionally, C 140 , C 141 , C 142 , C 143 , C 144 , C 145 , C 146 , C 147 , C 148 and C 149 Each of can take the value of any element in set S1.

[0340] Optionally, T2 can be defined in any of the following ways:

[0341] T2=30·(Δt2，1 -1)+(31-Δt 3，1 )。

[0342] T2=30·Δt 2，1 -Δt 3，1 +1。

[0343] T2=(W-C 150 )·(Δt 2，1 -C 151 )+((W-C 152 )-Δt 3，1 )。

[0344] T2=(W-C 150 )·Δt 2，1 -Δt 3，1 +C 153 。

[0345] T2=C 154 ·Δt 2，1 -C 155 ·Δt 3，1 +C 156 。

[0346] T2=30·(30-Δt 2，1 +1)+(30-1-(31-Δt 3，1 ))。

[0347] T2=928-30·Δt 2，1 +Δt 3，1 。

[0348] T2=(W-C 150 )·((W-C 150 )-Δt 2，1 +C 157 )+((W-C 150 )-C 158 -((W-C 152 )-Δt 3，1 ))。

[0349] T2=(W-C 150 )·(W-C 150 )-C 159 -(W-C 150 )·Δt 2，1 +Δt 3，1 。

[0350] T2=30·(Δt 3，1 -1)+(31-Δt 2，1 )。

[0351] T2=30·Δt 3，1 -Δt 2，1 +1。

[0352] T2=(W-C 150 )·(Δt 3，1 -C 151 )+((W-C 152 )-Δt 2，1 )。

[0353] T2=(W-C 150 )·Δt 3，1 -Δt 2，1 +C 153 。

[0354] T2=C 154 ·Δt 3，1 -C 155 ·Δt 2，1 +C 156 。

[0355] T2=30·(30-Δt 3，1 +1)+(30-1-(31-Δt 2，1 ))。

[0356] T2=928-30·Δt 3，1 +Δt 2，1 。

[0357] T2=(W-C 150 )·((W-C 150 )-Δt 3，1 +C 157 )+((W-C 150 )-C 158 -((W-C 152 )-Δt 2，1 ))。

[0358] T2=(W-C 150 )·(W-C 150 )-C 159 -(W-C 150 )·Δt 3，1+Δt 2，1 .

[0359] in,

[0360] C 150 , C 151 , C 1s2 , C 153 , C 154 , C 155 , C 156 , C 157 , C 158 and C 159 Each of can take the value of any element in set S1.

[0361] For example, TRIV=TRIV′+W, where TRIV′ can be defined as follows:

[0362]

[0363] For example, TRIV can be defined as follows:

[0364]

[0365] For another example, TRIV=TRIV′+W, where TRIV′ can be defined as follows:

[0366]

[0367] For example, TRIV can be defined as follows:

[0368]

[0369]

[0370] For another example, TRIV=TRIV′+W, where TRIV′ can use the following definition of RIV (for example, the definition of RIV in uplink resource allocation type 1, and the definition of RIV in downlink resource allocation type 1) and replace L RBs Replaced by Δt 2，1 , R.B. start Replaced by (W-1)-Δt 3，1 , Replace with (W-2):

[0371]

[0372] For another example, TRIV=TRIV′+32, where TRIV′ can be defined as follows:

[0373]

[0374] For example, TRIV can be defined as follows:

[0375]

[0376] For another example, TRIV=TRIV′+32, where TRIV′ can be defined as follows:

[0377]

[0378] For example, TRIV can be defined as follows:

[0379]

[0380] For another example, TRIV=TRIV′+32, where TRIV′ can be defined as follows:

[0381]

[0382] For example, TRIV can be defined as follows:

[0383]

[0384] For another example, TRIV=TRIV′+32, where TRIV′ can use the following definition of RIV (for example, the definition of RIV in uplink resource allocation type 1, and the definition of RIV in downlink resource allocation type 1) and replace L RBs Replaced by Δt 2，1 , R.B. start Replaced by 31-Δt 3，1 , Replace with 30:

[0385]

[0386] Optionally, the number of subchannels m occupied by each time-frequency resource (e.g., each allocated time-frequency resource, such as time-frequency resource 1) and / or other frequency domain parameters (e.g., the starting subchannel f2 of time-frequency resource 2 (e.g., in In the case of In the case of ), for example, the starting subchannel f3 of the time-frequency resource 3 (for example, in the case of)).

[0387] in,

[0388] ◆Optionally, if The values ​​of m and f2 are determined according to the frequency resource allocation indication value FRIV.

[0389] ○ Optionally, FRIV can be defined as follows:

[0390] <![CDATA[FRIV=f2+Δ F，2 ]]>

[0391] in,

[0392] ◇ Optionally,

[0393] ◇Optionally, if but

[0394] ◇Optionally, if m=1, then Δ F，2 =0.

[0395] ◇Optionally, if m>1, then

[0396] ◇Optionally, if m≠1, then

[0397] ◇Optionally, if but Otherwise Δ F，2 =0.

[0398] ◇Optionally, if m>1, then Otherwise Δ F，2 =0.

[0399] ◇Optionally, if m≠1, then Otherwise Δ F，2 =0.

[0400] ◇Optionally, if m=1, then Δ F，2 =0; otherwise

[0401] in,

[0402] ◇Optionally, in any of the above expressions, Can be replaced by

[0403] ○ Optionally, FRIV can be defined as follows:

[0404]

[0405] ◆Optionally, if The values ​​of m, f2 and f3 are determined according to the frequency resource allocation indication value FRIV.

[0406] ○ Optionally, FRIV can be defined as follows:

[0407]

[0408] Or defined as follows:

[0409]

[0410] in,

[0411] ◇ Optionally,

[0412] ◇Optionally, if but

[0413] ◇Optionally, if m=1, then Δ F，3 =0.

[0414] ◇Optionally, if m>1, then

[0415] ◇Optionally, if m≠1, then

[0416] ◇Optionally, if but Otherwise Δ F，3 =0.

[0417] ◇Optionally, if m>1, then Otherwise Δ F，3 =0.

[0418] ◇Optionally, if m≠1, then Otherwise Δ F，3 =0.

[0419] ◇Optionally, if m=1, then Δ F，3 =0; otherwise

[0420] in,

[0421] ◇Optionally, in any of the above expressions, Can be replaced by

[0422] ◆Optionally, if The values ​​of m and f2 are determined according to the frequency resource allocation indication value FRIV; if The values ​​of m, f2 and f3 are determined according to the frequency resource allocation indication value FRIV.

[0423] ○ Optionally, FRIV can be defined as follows:

[0424]

[0425] ○ Or defined as follows:

[0426]

[0427] in,

[0428] ◇ Optionally,

[0429] ◇Optionally, if but

[0430] ◇Optionally, if m=1, then Δ F =0.

[0431] ◇Optionally, if m>1, then

[0432] ◇Optionally, if m≠1, then

[0433] ◇Optionally, if but Otherwise Δ F =0.

[0434] ◇Optionally, if m>1, then Otherwise Δ F =0.

[0435] ◇Optionally, if m≠1, then Otherwise Δ F =0.

[0436] ◇Optionally, if m=1, then Δ F =0; otherwise

[0437] ◆Optionally, if and Then the determined value of f2 does not indicate the starting subchannel of any time-frequency resource (for example, the determined value of f2 can be ignored at this time).

[0438] Optionally, a given value of m may correspond to one or more FRIV values. For example, for a given value of m (denoted as m0), the one or more FRIV values ​​are based on m=m0 and f2=F 2，0 Determine the value of FRIV, where F 2，0 Can take collection The value of one or more elements in .

[0439] Optionally, a given value of m corresponds to a value of FRIV. For example, for a given value of m (denoted as m0), the value of FRIV is m=m0 and f2=F 2，1 The corresponding FRIV value, where F 2，1 Equal to set The value of a predefined or configured or preconfigured element in, such as F 2，1 =0; At this time, optionally, m=m0 and f2≠F 2，1 The corresponding FRIV value (for example, in F 2，1 = 0, m0 and f2 = "set The value of any element in "the value of FRIV corresponding to" can be reserved (for example, for use in future protocol versions).

[0440] ◆Optionally, if and Then the determined values ​​of f2 and f3 do not indicate the starting subchannel of any time-frequency resource (for example, the determined values ​​of f2 and f3 can be ignored at this time).

[0441] Optionally, a given value of m may correspond to one or more values ​​of FRIV. For example, for a given value of m (denoted as m0), the values ​​of FRIV are m=m0, f2=F 2，2 and f3=F 3，0 The corresponding FRIV value, where F 2，2 and F 3，0 Each of the can take the set The value of any element in .

[0442] Optionally, a given value of m corresponds to a value of FRIV. For example, for a given value of m (denoted as m=m0), the value of FRIV is m0, f2=F 2，3 and f3=F 3，1The corresponding FRIV value, where F 2，3 and F 3，1 Each of them is equal to the set The value of a predefined or configured or preconfigured element in, such as F 2，3 =0, F 3，1 =0; Another example is F 2，3 =0, Another example F 3，1 = 0. At this time, optionally, m = m0, f2 ≠ F 2，3 and f3≠F 3，1 The corresponding FRIV value (for example, in F 2，3 =0, F 3，1 = 0, m = m0, f2 = "set The value of any element in the set The value of any element in "the value of FRIV corresponding to" can be reserved (for example, for use in future protocol versions).

[0443] ◆Optionally, if and Then the determined value of f3 does not indicate the starting subchannel of any time-frequency resource (for example, the determined value of f3 can be ignored at this time).

[0444] ○ Optionally, a given value of m and a given value of f2 may correspond to one or more values ​​of FRIV. For example, for a given value of m (denoted as m0) and a given value of f2 (denoted as f 2，4 ), the value of FRIV is m=m0, f2=f 2，4 and f3=F 3，2 The corresponding FRIV value, where F 3，2 Can take collection The value of one or more elements in .

[0445] ○ Optionally, a given value of m and a given value of f2 correspond to a value of FRIV. For example, for a given value of m (denoted as m0) and a given value of f2 (denoted as f 2，4 ), wherein FRIV is m, f 2，4 and f3=F 3，3 The corresponding FRIV, where F 3，3 Equal to set The value of a predefined or configured or preconfigured element in, such as F3，3 =0; At this time, optionally, m=m0, f2=f 2，4 and f3≠F 3，3 The corresponding FRIV value (for example, in F 3，3 = 0, m = m0, f2 = f 2，4 and f3 = "set The value of any element in "the value of FRIV corresponding to" can be reserved (for example, for use in future protocol versions).

[0446] Figure 3 It shows and An example of the various parameters of time-frequency resource 1, time-frequency resource 2 and time-frequency resource 3.

[0447] Optionally, in the first embodiment of the present invention, the set S1 may be equal to any one of the following sets, or equal to the union of any two or more of the following sets:

[0448] ●{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11, -12, -13, -14, -15, -16, -17, -18, -19, -20, -21, -22, -23, -24, -25, -26, -27, -28, -29, -30, -31, -32, -33, -34, -35, -36}.

[0449] ●{784, 812, 840, 841, 868, 870, 896, 899, 900, 924, 928, 930, 952, 957, 960, 961, 980, 986, 990, 992, 1008, 1015, 1020, 1023, 1024, 1044, 1050, 1054, 1056, 1080, 1085, 1088, 1089, 1116, 1120, 1122, 1152, 1155, 1156, 1188, 1190, 1224, 1225, 1260, 1296}.

[0450] ●{(W-4) (W-4),(W-3) (W-4),(W-2) (W-4),(W-1) (W-4),(W-0) (W-4),(W+1) (W-4),(W+2) (W-4),(W+3) (W-4),(W+4) (W-4),(W-3) (W-3),(W-2) (W-3),( W-1) (W-3),(W-0) (W-3),(W+1) (W-3),(W+2) (W-3),(W+3) (W-3),(W+4) (W-3),(W-2) (W-2),(W-1) (W-2),(W-0) (W-2),(W+1) (W-2),(W+2) (W-2),(W+3) (W-2),(W+4),(W-2),(W-1),(W-1),(W-0),(W-1),(W+1),(W-1),(W+2),(W-1),(W+3),(W-1),(W+4),(W-1),(W-0),(W+1),(W-0),(W+2),(W-0),(W+3),(W- 0),(W+4)·(W-0),(W+1)·(W+1),(W+2)·(W+1),(W+3)·(W+1),(W+4)·(W+1),(W+2)·(W+2),(W+3)·(W+2),(W+4)·(W+2),(W+3)·(W+3),(W+4)·(W+3),(W+4)·(W+3),(W+4)·(W+4)}。

[0451] ●{W,W+1,W+2,W+3,W+4,W+5,W+6,W+7,W+8,W+9,W+10,W+11,W+12,W+13,W+14,W+15,W+16,W+17,W+18,W +19,W+20,W+21,W+22,W+23,W+24,W+25,W+26,W+27,W+28,W+29,W+30,W+31,W+32,W+33,W+34,W+35,W+3 6,W-1,W-2,W-3,W-4,W-5,W-6,W-7,W-8,W-9,W-10,W-11,W-12,W-13,W-14,W-15,W-16,W-17,W-18,W-19 ,W-20,W-21,W-22,W-23,W-24,W-25,W-26,W-27,W-28,W-29,W-30,W-31,W-32,W-33,W-34,W-35,W-36}。

[0452] Thus, according to the first embodiment, the present invention provides a method, by providing a mapping from the "frequency resource allocation" in the first stage SCI to the frequency parameters of the allocated time-frequency resources (for example, the number of sub-channels occupied by each allocated time-frequency resource, the starting sub-channel of time-frequency resource 2, and the starting sub-channel of time-frequency resource 3), and providing a mapping from the "time resource allocation" field in the first stage SCI to the time parameters of the allocated time-frequency resources (for example, the time slot where time-frequency resource 2 is located, and the time slot where time-frequency resource 3 is located), so that the UE sending the SCI can efficiently and unambiguously indicate the allocated time-frequency resources to the UE receiving the SCI.

[0453] [Modifications]

[0454] Next, use Figure 4 A user equipment as a variation example that can execute the method executed by the user equipment described in detail above of the present invention is described.

[0455] Figure 4 It is a block diagram showing a user equipment UE involved in the present invention.

[0456] like Figure 4 As shown, the user equipment UE40 includes a processor 401 and a memory 402. The processor 401 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The memory 402 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 402 stores program instructions. When the instructions are executed by the processor 401, the above method performed by the user equipment described in detail in the present invention may be executed.

[0457] The method of the present invention and the devices involved have been described above in conjunction with the preferred embodiments. Those skilled in the art will appreciate that the method shown above is merely exemplary, and the various 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 network nodes and user equipment shown above may include more modules, for example, modules that can be developed or developed in the future and can be used for base stations, MMEs, or UEs, etc. The various identifiers shown above are merely exemplary and not restrictive, and the present invention is not limited to specific information elements that serve as examples of these identifiers. Those skilled in the art may make many changes and modifications based on the teachings of the illustrated embodiments. Those skilled in the art should appreciate that part or all of a mathematical expression, mathematical equation, or mathematical inequality may be simplified to a certain extent (for example, by combining constant terms) or transformed or rewritten; the mathematical expression, mathematical equation, or mathematical inequality before and after simplification, transformation, or rewriting may be considered equivalent. For example, in the equation TRIV=TRIV′+ΔT If Δ T =0, then TRIV = TRIV', and the definition of TRIV' can be considered to be the definition of TRIV. T，1 If Δ T，1 =0, then "TRIV' = T1 + Δ T，1 ” is equivalent to “TRIV′=T1”. For example, in the equation TRIV′=T2+Δ T，2 If Δ T，2 =0, then "TRIV' = T2 + Δ T，2 ” is equivalent to “TRIV′=T2”.

[0458] It should be understood that the above embodiments of the present invention can be implemented by software, hardware, or a combination of software and hardware. For example, the various components inside the base station and user equipment in the above embodiments can be implemented by a variety of devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processors, application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), programmable logic devices (CPLDs), and the like.

[0459] In this application, "base station" may refer to a mobile communication data and control exchange center with a certain transmission power and a certain coverage area, including functions such as resource allocation scheduling, data reception and transmission, etc. "User equipment" may refer to a user's mobile terminal, such as a mobile phone, a notebook, etc., which can communicate wirelessly with a base station or a micro base station.

[0460] In addition, the embodiments of the present invention disclosed herein can be implemented on a computer program product. More specifically, the computer program product is a product as follows: having a computer-readable medium, on which a computer program logic is encoded, and when executed on a computing device, the computer program logic provides relevant operations to implement the above-mentioned technical solution of the present invention. When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operation (method) described in the embodiment of the present invention. This arrangement of the present invention 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 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 solution described in the embodiment of the present invention.

[0461] 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 above-mentioned 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 the progress of semiconductor technology, an advanced technology that can replace the current integrated circuit appears, the present invention may also use the integrated circuit obtained by using the advanced technology.

[0462] Although the present invention has been illustrated above in conjunction with the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications, substitutions and changes may be made to the present invention without departing from the spirit and scope of the present invention. Therefore, the present invention should not be limited by the above-described embodiments, but by the appended claims and their equivalents.

Claims

1. A user equipment, comprising: processor; as well as A memory storing instructions, wherein based on the instructions, the processor is configured to: receiving first-stage straight control information SCI contained in a physical straight control channel PSCCH, wherein the first-stage SCI indicates a time resource indication value TRIV and a frequency resource indication value FRIV; and Determine about The information of the allocated physical shared channel PSSCH resource includes a first starting subchannel index f1 for the first resource as the index of the subchannel of the lowest PRB on which the PSCCH is transmitted, wherein is determined based on the TRIV, like The information includes a second starting subchannel index f2 for the second resource and a The number of consecutively allocated subchannels m for each of the resources satisfies: like The information includes a second starting subchannel index f2 for the second resource, a third starting subchannel index f3 for the third resource, and The number of subchannels in each of the resources, m, satisfies: is the maximum number of configured PSSCH resources that can be indicated in the first stage SCI, when hour, is equal to 1 or 2, when hour, is equal to 1, 2 or 3, is the number of configured subchannels in the resource pool, like and Then f2 is not used to indicate PSSCH resources. like and Then f2 and f3 are not used to indicate PSSCH resources, and like and Then f3 is not used to indicate PSSCH resources.

2. A user equipment, comprising: processor; as well as A memory storing instructions, wherein based on the instructions, the processor is configured to: Sending first-stage straight control information SCI included in a physical straight control channel PSCCH, wherein the first-stage SCI indicates a time resource indication value TRIV and a frequency resource indication value FRIV; and Determine about The information of the allocated physical shared channel PSSCH resource includes a first starting subchannel index f1 for the first resource as the index of the subchannel of the lowest PRB on which the PSCCH is transmitted, wherein is determined based on the TRIV, like The information includes a second starting subchannel index f2 for the second resource and a The number of consecutively allocated subchannels m for each of the resources satisfies: like The information includes a second starting subchannel index f2 for the second resource, a third starting subchannel index f3 for the third resource, and The number of subchannels in each of the resources, m, satisfies: is the maximum number of configured PSSCH resources that can be indicated in the first stage SCI, when hour, is equal to 1 or 2, when hour, is equal to 1, 2 or 3, is the number of configured subchannels in the resource pool, like and Then f2 is not used to indicate PSSCH resources. like and Then f2 and f3 are not used to indicate PSSCH resources, and like and Then f3 is not used to indicate PSSCH resources.

3. A method performed by a user equipment, comprising: receiving first-stage straight control information SCI contained in a physical straight control channel PSCCH, wherein the first-stage SCI indicates a time resource indication value TRIV and a frequency resource indication value FRIV; and Determine about The information of the allocated physical shared channel PSSCH resource indicates a first starting subchannel index f1 for the first resource as the index of the subchannel of the lowest PRB on which the PSCCH is transmitted, wherein is determined based on the TRIV, like The information indicates a second starting subchannel index f2 for the second resource, and The number of consecutively allocated subchannels m for each of the resources satisfies: like The information indicates a second starting subchannel index f2 for the second resource, a third starting subchannel index f3 for the third resource, and a The number of subchannels in each of the resources, m, satisfies: is the maximum number of configured PSSCH resources that can be indicated in the first stage SCI, when hour, is equal to 1 or 2, when hour, is equal to 1, 2 or 3, is the number of configured subchannels in the resource pool, like and Then f2 is not used to indicate PSSCH resources. like and Then f2 and f3 are not used to indicate PSSCH resources, and like and Then f3 is not used to indicate PSSCH resources.

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