WO2021228136A1 - 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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WO2021228136A1
WO2021228136A1 PCT/CN2021/093309 CN2021093309W WO2021228136A1 WO 2021228136 A1 WO2021228136 A1 WO 2021228136A1 CN 2021093309 W CN2021093309 W CN 2021093309W WO 2021228136 A1 WO2021228136 A1 WO 2021228136A1
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value
optionally
information
carrier
parameter
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PCT/CN2021/093309
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English (en)
French (fr)
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罗超
刘仁茂
赵毅男
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夏普株式会社
罗超
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Priority to EP21803950.1A priority Critical patent/EP4152856A4/en
Priority to US17/923,983 priority patent/US20230189302A1/en
Publication of WO2021228136A1 publication Critical patent/WO2021228136A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/40Resource management for direct mode communication, e.g. D2D or sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the invention relates to a method executed by a user equipment and a user equipment.
  • Non-Patent Document 1 RP-152293, New WI proposal: Support for V2V services based on LTE sidelink
  • Non-Patent Document 2 RP-170798, New WID on 3GPP V2X Phase 2
  • Non-Patent Document 3 RP-170855, New WID on New Radio Access Technology
  • Non-Patent Document 4 RP-190766, New WID on 5G V2X with NR sidelink
  • the present invention provides a method executed by a user equipment and a user equipment.
  • a method executed by a user equipment and a user equipment By effectively combining the values of the TDD configuration parameters in the SL common control information, an efficient TDD configuration instruction is realized. .
  • a method executed by a user equipment is proposed, which is characterized by including: setting the 12-bit content of the message in the PSBCH in the S-SS/PSBCH block, and transmitting the S-SS/PSBCH block .
  • one of the 12 bits is used to indicate that mode 1 is used in TDD configuration, or mode 1 and mode 2 are used, and for FDD, or for spectrum that only supports PC5 interface and does not provide TDD configuration, All 12 bits are set to '1'.
  • a user equipment including: a processor; and a memory storing instructions, wherein the instructions execute the above-mentioned method when run by the processor.
  • the present invention provides a method for effectively combining the values of the parameters of the TDD configuration in the SL common control information to achieve an efficient TDD configuration indication.
  • Fig. 1 is a flowchart showing a method executed by a user equipment according to the first embodiment of the present invention.
  • Fig. 2 shows a block diagram of the user equipment UE involved in the present invention.
  • 3GPP 3rd Generation Partnership Project
  • the third generation partnership project the third generation partnership project
  • AGC Automatic Gain Control, automatic gain control
  • BWP Bandwidth Part, Bandwidth Part
  • CA Carrier Aggregation, carrier aggregation
  • CCE control-channel element, control channel element
  • CORESET control-resource set, control resource set
  • CP Cyclic Prefix, cyclic prefix
  • CP-OFDM Cyclic Prefix Orthogonal Frequency Division Multiplexing, Cyclic Prefix Orthogonal Frequency Division Multiplexing
  • CRB Common Resource Block, common resource block
  • CRC Cyclic Redundancy Check, cyclic redundancy check
  • CSI Channel-state Information, channel state information
  • DCI Downlink Control Information, downlink control information
  • DFN Direct Frame Number, direct frame number
  • DFT-s-OFDM Discrete Fourier Transformation Spread Orthogonal Frequency Division Multiplexing, Discrete Fourier Transform Spread Spectrum Orthogonal Frequency Division Multiplexing
  • DL-SCH Downlink Shared Channel, downlink shared channel
  • DM-RS also known as DMRS, Demodulation reference signal, demodulation reference signal
  • eMBB Enhanced Mobile Broadband, enhanced mobile broadband communications
  • eNB E-UTRAN Node B, E-UTRAN Node B
  • E-UTRAN Evolved UMTS Terrestrial Radio Access Network, the evolved UMTS terrestrial radio access network
  • FDD Frequency Division Duplex, Frequency Division Duplex
  • FDRA Frequency Domain Resource Assignment, frequency domain resource allocation
  • GLONASS GLObal NAvigation Satellite System, Global Navigation Satellite System
  • gNB NR Node B, NR Node B
  • GNSS Global Navigation Satellite System, Global Navigation Satellite System
  • GPS Global Positioning System, Global Positioning System
  • ID Identity (or Identifier), identity, identifier
  • IP Internet Protocol, Internet Protocol
  • LCID Logical Channel ID, logical channel identifier
  • LSB Least Significant Bit, the least significant bit
  • LTE Long Term Evolution, long-term evolution
  • LTE-A Long Term Evolution-Advanced, Long Term Evolution-Upgraded Version
  • MAC Medium Access Control, medium access control
  • MAC CE MAC Control Element, MAC control element
  • MCG Master Cell Group, master cell group
  • MIB Master Information Block, master information block
  • MIB-SL Master Information Block-Sidelink, master information block-go straight
  • MIB-SL-V2X Master Information Block-Sidelink-V2X, master information block-go straight-vehicle to any entity
  • MIB-V2X Master Information Block-V2X, master information block-vehicle to any entity
  • MSB Most Significant Bit, the most significant bit
  • mMTC massive Machine Type Communication, large-scale machine type communication
  • NAS Non-Access-Stratum, non-access layer
  • NDI New Data Indicator, new data indicator
  • NUL Normal Uplink, normal uplink
  • OFDM Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing
  • PBCH Physical Broadcast Channel, physical broadcast channel
  • PDCCH Physical Downlink Control Channel, physical downlink control channel
  • PDCP Packet Data Convergence Protocol, packet data convergence protocol
  • PDSCH Physical Downlink Shared Channel, physical downlink shared channel
  • PSBCH Physical Sidelink Broadcast Channel, physical direct broadcast channel
  • PSCCH Physical Sidelink Control Channel, physical direct control channel
  • PSFCH Physical Sidelink Feedback Channel, physical direct feedback channel
  • PSSCH Physical Sidelink Shared Channel, physical direct shared channel
  • PRB Physical Resource Block, physical resource block
  • PSS Primary Synchronization Signal, the primary synchronization signal
  • PSS-SL Primary Synchronization Signal for Sidelink, direct main synchronization signal
  • PSSS Primary Sidelink Synchronization Signal, the main straight line synchronization signal
  • PTAG Primary Timing Advance Group, the main timing advance group
  • PUSCH Physical uplink shared channel, physical uplink shared channel
  • PUCCH Physical uplink control channel, physical uplink control channel
  • QoS Quality of Service, quality of service
  • QZSS Quasi-Zenith Satellite System, Quasi-Zenith Satellite System
  • RAR Random Access Response, Random Access Response
  • RB Resource Block, resource block
  • REG resource-element group, resource element group
  • RF Radio Frequency, radio frequency
  • RLC Radio Link Control, radio link control protocol
  • Radio-Network Temporary Identifier Radio-Network Temporary Identifier, wireless network temporary identifier
  • RRC Radio Resource Control, radio resource control
  • RV Redundancy Version, redundant version
  • S-BWP Sidelink Bandwidth Part, straight bandwidth segment
  • S-MIB Sidelink Master Information Block, go straight to the master information block
  • S-PSS Sidelink Primary Synchronization Signal, direct main synchronization signal
  • S-SSB Sidelink SS/PBCH block, direct synchronization signal/physical broadcast channel block
  • S-SSS Sidelink Secondary Synchronization Signal, direct auxiliary synchronization signal
  • SCG Secondary Cell Group, secondary cell group
  • SCI Sidelink Control Information, direct control information
  • SCS Subcarrier Spacing, subcarrier spacing
  • SDAP Service Data Adaptation Protocol, service data adaptation protocol
  • SFN System Frame Number, system frame number
  • SIB System Information Block, system information block
  • SL BWP Sidelink Bandwidth Part, straight-through bandwidth segment
  • SL MIB Sidelink Master Information Block
  • SL PSS Sidelink Primary Synchronization Signal, direct main synchronization signal
  • SL SS Sidelink Synchronization Signal, direct synchronization signal
  • SL SSID Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), direct synchronization signal identification
  • SL SSB Sidelink SS/PBCH block, direct synchronization signal/physical broadcast channel block
  • SL SSS Sidelink Secondary Synchronization Signal, direct-travel secondary synchronization signal
  • SLSS Sidelink Synchronization Signal, direct synchronization signal
  • SLSS ID Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), direct synchronization signal identification
  • SLSSID Sidelink Synchronization Signal Identity (or Sidelink Synchronization Signal Identifier), direct synchronization signal identification
  • SpCell Special Cell, special cell
  • SRS Sounding Reference Signal, sounding reference signal
  • SSB SS/PBCH block, synchronization signal/physical broadcast channel block
  • SSB-SL SS/PBCH block for Sidelink, direct synchronization signal/physical broadcast channel block
  • SSS Secondary Synchronization Signal, secondary synchronization signal
  • SSS-SL Secondary Synchronization Signal for Sidelink, direct-travel auxiliary synchronization signal
  • SSSB Sidelink SS/PBCH block, direct synchronization signal/physical broadcast channel block
  • SSSS Secondary Sidelink Synchronization Signal, secondary direct synchronization signal
  • Sub-channel sub-channel
  • Timing Advance Timing Advance
  • TAG Timing Advance Group, timing advance group
  • Transport Block transport block
  • TCP Transmission Control Protocol, Transmission Control Protocol
  • TDD Time Division Duplex, time division duplex
  • TPC Transmit power control, transmission power control
  • UE User Equipment, user equipment
  • UMTS Universal Mobile Telecommunications System
  • Universal Mobile Telecommunications System Universal Mobile Telecommunications System
  • V2I Vehicle-to-Infrastructure, vehicle to infrastructure
  • V2N Vehicle-to-network, vehicle-to-network
  • V2P Vehicle-to-Pedestrian, vehicle to pedestrian
  • V2V Vehicle-to-vehicle, vehicle-to-vehicle
  • V2X Vehicle-to-everything, vehicle to any entity
  • VRB Virtual Resource Block, virtual resource block
  • V2X communication V2X SL communication
  • SL V2X communication SL V2X communication
  • one DL carrier, one UL carrier, and, optionally, one SUL carrier can be configured in a TDD cell.
  • the UL carrier may also be referred to as a "non-SUL carrier”.
  • non-SUL carrier is a kind of "UL carrier”.
  • a TDD cell can be configured with a UL carrier, which is called a "non-SUL carrier”.
  • a TDD cell can be configured with two UL carriers, one of which is a "non-SUL carrier” and the other is a "SUL carrier”.
  • S 1 is a set of the subsets S 1, S 1 may be in the zero or one or more (including all) of the set of elements.
  • S 1 and S 2 are two sets, then S 1 -S 2 represent the "difference set" of set S 1 and set S 2 , that is, the set of elements in set S 1 that do not belong to set S 2 .
  • operating on the elements in the set S 1 for example, filtering, transforming, etc.
  • the set S 2 can be equivalent to directly operating in the original set S 1 to obtain the updated set S 1 .
  • “higher layer” can refer to one or more protocol layers or protocol sublayers above the physical layer.
  • MAC layer RLC layer
  • PDCP layer PC5 RRC layer
  • PC5-S layer RRC layer
  • V2X layer application layer
  • V2X application layer etc.
  • pre-configuration can be pre-configured through higher layer protocol/signaling (pre-configure). For example, preset (for example, preset according to the specifications of the high-level protocol) in a specific storage location in the UE, or preset (for example, preset according to the specifications of the high-level protocol) in a specific storage location that the UE can access.
  • preset for example, preset according to the specifications of the high-level protocol
  • preset for example, preset according to the specifications of the high-level protocol
  • configuration can be configured through higher layer protocols/signaling.
  • it is configured for the UE through RRC signaling.
  • time-domain resources can also be referred to as time resources.
  • frequency-domain resources can also be referred to as frequency resources.
  • symbol refers to "OFDM symbol”.
  • the number of OFDM symbols can start from 0.
  • the numbered set of OFDM symbols in a slot may be ⁇ 0, 1,..., 13 ⁇ .
  • the set of OFDM symbol numbers in a slot may be ⁇ 0, 1, ..., 11 ⁇ .
  • resource block can refer to virtual resource block (VRB), physical resource block (PRB), common resource block (CRB), or Refers to resource blocks defined in other ways.
  • VRB virtual resource block
  • PRB physical resource block
  • CRB common resource block
  • the subchannel (or sub-channel) number can start from 0. For example, if the number of sub-channels configured in the resource pool is Then the set of numbers of sub-channels can be
  • the number of subcarriers can start from 0.
  • the set of numbers of subcarriers in a resource block may be ⁇ 0, 1, ..., 11 ⁇ .
  • the value of a parameter with a size of L bits can be represented by an integer value (for example, 0, 1, 2, etc.), or the bit string corresponding to the integer (for example, A bit string of length L, such as'b 0 b 1 ... b L-1 ').
  • bit string'b 0 b 1 ... b L-1 ' the first (that is, the leftmost) bit (that is, b 0 ) is the most significant bit, and the last (that is, the rightmost) bit is the most significant bit.
  • bit string'b 0 b 1 ... b L-1 ' the first (that is, the leftmost) bit (that is, b 0 ) is the least significant bit, and the last (that is, the rightmost) bit is the least significant bit.
  • the values 0 and 1 of the parameter may correspond to '0' and '1', respectively.
  • the value of the parameter 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15 can respectively correspond to '0000 ','0001','0010','0011','0100','0101','0110','0111','1000','1001','1010', '1011','1100', '1101', '1110' and '1111'.
  • the values of the parameter 0, 1,..., 126, and 127 can correspond to ‘0000000’, ‘0000001’, ..., ‘1111110’ and ‘1111111’ respectively.
  • the interface between devices can be called a PC5 interface, and the corresponding transmission link can be called at the physical layer. It is a "straight" or “sidelink” (SL) link to distinguish it from 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 LTE SL link.
  • the SL link based on NR technology can be called NR SL link.
  • 5G V2X communication can be based on LTE SL or NR SL. Unless otherwise specified below, "SL” refers to NR SL.
  • the physical layer of the SL link can support one or more of the in-coverage, out-of-coverage, and partial-coverage scenarios.
  • Mode of transmission such as broadcast transmission, groupcast transmission, unicast transmission, and so on.
  • the SCS subcarrier spacing, subcarrier spacing, denoted as ⁇ f, in kHz
  • the SCS subcarrier spacing, subcarrier spacing, denoted as ⁇ f, in kHz
  • the SCS corresponding to the SL link can be 15kHz (normal CP), or 30kHz (normal CP), or 60kHz (normal CP or extended CP);
  • the SCS corresponding to the SL link can be 60kHz (normal CP or extended CP), or 120kHz (normal CP).
  • may be the SCS configuration of the SL carrier; for example, all SL transmissions in one SL carrier use the same SCS configuration and/or the same CP.
  • may be the SCS configuration of SL BWP (Sidelink Bandwidth Part, or S-BWP, or SBWP, or SL-BWP, or BWP-SL, or BWP for short); for example , All SL transmissions in an SL BWP use the same SCS configuration and/or the same CP.
  • may 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.
  • the signals and channels related to SL operation may include:
  • SL PSS Segment Primary Synchronization Signal
  • S-PSS S-PSS
  • SPSS S-PSS
  • SL-PSS S-SL
  • PSSS Primary Sidelink Synchronization Signal
  • Main straight sync signal Main straight sync signal
  • PSBCH Physical Sidelink Broadcast Channel, physical direct broadcast channel
  • ⁇ PSCCH Physical Sidelink Control Channel
  • ⁇ PSFCH Physical Sidelink Feedback Channel, physical direct feedback channel
  • SL PSS, SL SSS, and PSBCH can be organized into blocks on time/frequency resources, such as S-SSB (Sidelink Synchronization Signal/PSBCH block, or SSS/PSBCH block, direct synchronization signal/ Physical Direct Broadcast Channel Block), or SSS/PSBCH block, or SS/PSBCH block, or S-SS/PSBCH block, or SL SSB, or SSSB, or SL-SSB , Or SSB-SL.
  • S-SSB Systemlink Synchronization Signal/PSBCH block, or SSS/PSBCH block, direct synchronization signal/ Physical Direct Broadcast Channel Block
  • SSS/PSBCH block or SS/PSBCH block, or S-SS/PSBCH block, or SL SSB, or SL-SSB , Or SSB-SL.
  • the transmission bandwidth of the S-SSB (for example, 11 resource blocks) may be located in the corresponding SL carrier (for example, in one SL BWP configured
  • SL PSS and/or SL SSS can carry SL SSID (Sidelink Synchronization Identity, or Sidelink Synchronization Identifier), or Sidelink Synchronization Signal Identity, or Sidelink Synchronization Signal Identity, or Sidelink Synchronization Signal Identity, or SL-SSID, or SL-SSID Called SSID-SL, or SLSSID, or SLSS ID, or S-SSID, etc.), PSBCH can carry SL MIB (Sidelink Master Information Block), or SL-MIB , Or S-MIB, or MIB-SL, or MasterInformationBlockSidelink), for example, configured by the parameter masterInformationBlockSidelink.
  • SL SSID Sidelink Synchronization Identity, or Sidelink Synchronization Identifier
  • PSBCH can carry SL MIB (Sidelink Master Information Block), or SL-MIB , Or S-MIB, or MIB-SL, or MasterInformationBlockSidelink), for example, configured by
  • the time domain and/or frequency domain resources used to transmit the S-SSB can be configured through high-level parameters.
  • the position of the S-SSB in the frequency domain can be configured through the parameter absoluteFrequencySSB-SL (or the parameter sl-AbsoluteFrequencySSB-r16).
  • one or more synchronization configuration items can be configured through the parameter sl-SyncConfigList-r16.
  • the parameter numSSBwithinPeriod-SL (or the parameter sl-NumSSB-WithinPeriod-r16) can be configured.
  • the index of the slot where the S-SSB is located in a period of 16 frames can be in It can be configured by parameter timeOffsetSSB-SL (or parameter sl-TimeOffsetSSB-r16), It can be configured by parameter timeIntervalSSB-SL (or parameter sl-TimeInterval-r16).
  • the time domain resources and/or frequency domain resources configured for the S-SSB in the SL carrier correspond to the candidate S-SSB (or referred to as the S-SSB candidate).
  • the candidate S-SSB or referred to as the S-SSB candidate.
  • a time slot configured with S-SSB (or configured with S-SSB resources, or with candidate S-SSB, or with candidate S-SSB resources) can also be referred to as configured with SLSS (or Say that SLSS resources are configured) time slots. vice versa.
  • the synchronization source related to SL synchronization may include GNSS (Global Navigation Satellite System), gNB, eNB, and UE (for example, NR UE, LTE UE, NR UE or LTE UE).
  • GNSS Global Navigation Satellite System
  • gNB Global Navigation Satellite System
  • eNB eNode B
  • UE for example, NR UE, LTE UE, NR UE or LTE UE.
  • a UE serving as a synchronization source for example, a UE transmitting S-SSB
  • a SyncRef UE for example, a UE transmitting S-SSB
  • 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, Quasi-Zenith Satellite System) and so on.
  • GPS Global Positioning System
  • GLONASS GLObal Navigation Satellite System
  • BeiDou BeiDou Navigation Satellite System
  • Galileo Galileo Navigation Satellite System
  • QZSS Quadasi-Zenith Satellite System, Quasi-Zenith Satellite System
  • One or more (for example, one) SL BWP can be configured in the SL carrier.
  • the start symbol for SL transmission in a time slot where SL transmission can be carried out can be configured through the parameter startSLsymbols (or parameter sl-StartSymbol-r16) (for example, remember that the symbol is in the time slot).
  • the number in the gap is ), and the number of symbols configured for SL transmission in the time slot through the parameter lengthSLsymbols (or the parameter sl-LengthSymbols-r16) (for example, the number of symbols is ).
  • the set of values can be denoted as E.g
  • the set of values can be denoted as E.g
  • the "symbols used for SL transmission” may be referred to as "SL symbols”.
  • SL symbols the set of SL symbols in the time slot (in chronological order) as but For example, if Then the set of SL symbols in the time slot is ⁇ 7, 8, 9, 10, 11, 12, 13 ⁇ .
  • time slots that meet certain conditions can be SL transmission.
  • at least symbols in the time slot symbol symbol symbol It is an uplink symbol (for example, a semi-statically configured uplink symbol).
  • the time slot must be in a time slot set of a configured resource pool.
  • One or more resource pools can be configured in an SL BWP, among which, in each resource pool,
  • the position of the start resource block of the start subchannel of the resource pool in the SL BWP can be configured through the parameter startRB-Subchannel (or the parameter sl-StartRB-Subchannel-r16).
  • the number of sub-channels occupied by the resource pool can be configured through the parameter numSubchannel (or the parameter sl-NumSubchannel-r16) (denoted as ). Said The sub-channels can be continuous in the frequency domain.
  • each subchannel can be composed of one or more resource blocks.
  • the specific number of resource blocks (called the size of the subchannel, such as n subChannelSize ) can be defined by the parameter subchannelsize (or parameter sl-SubchannelSize-r16). ) Configuration.
  • the n subChannelSize resource blocks may be continuous in the frequency domain.
  • each sub-channel in a resource pool can be numbered separately according to the order of frequency from small to large Among them, the sub-channel numbered i can be called "sub-channel i"
  • the parameter timeresourcepool (or parameter sl-TimeResource-r16) can be used to configure one or more time slots (for example, through the Bitmap mode), where the size of the period can be a predefined value or configured by the parameter periodResourcePool (or parameter sl-Period-r16).
  • the allocation of resources related to SL operations can be classified as follows:
  • Mode 1 The base station schedules SL resources for SL transmission.
  • ⁇ Mode 2 The UE determines the SL resources for SL transmission (that is, 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 the SL transmission.
  • the UE can schedule data transmission through SCI (Sidelink Control Information).
  • SCI Servicelink Control Information
  • SL operation can support "two-stage SCI" (two-stage SCI), in which the first stage SCI (1 st -stage SCI) can contain information such as resource reservation and/or resource allocation to facilitate all monitoring (monitor) SL
  • the UE of the link performs sensing for resource reservation and/or resource allocation; the second-stage SCI (2 nd- stage SCI) may contain other information, such as information related to HARQ feedback.
  • SCI Servicelink Control Information
  • it may include only the first stage SCI, or only the second stage SCI, or both the first stage SCI and the second stage SCI.
  • the format of the first stage SCI can be SCI format 0-1 (or written as "SCI format 0_1").
  • SCI format 0-1 or written as "SCI format 0_1".
  • DMRS pattern ⁇ DMRS pattern (DMRS pattern).
  • the format of the second stage SCI can be SCI format 0-2 (or written as "SCI format 0_2").
  • SCI format 0-2 or written as "SCI format 0_2".
  • Source Layer-1 ID or Layer-1 Source ID, or Physical Layer Source ID, or Physical Layer Source ID, or (when the context is clear ) Is called Source ID, source identifier).
  • Destination Layer-1 ID (Destination Layer-1 ID, or Layer-1 Destination ID, Layer-1 Destination ID, or Physical Layer Destination ID, Physical Layer Target Identifier, or (in the case of clear context) ) Is called Destination ID, target identifier).
  • HARQ Process ID HARQ Process ID
  • HARQ Process Number HARQ Process Number
  • NDI New Data Indicator
  • 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 the PSCCH (or scheduled).
  • the PSCCH and its associated PSSCH can be multiplexed on the time domain and/or frequency domain resources allocated for SL transmission in a certain manner (for example, the subchannel where the starting resource block of the PSCCH is located is the start of the PSSCH associated with it. Starting subchannel.
  • the starting resource block of the PSCCH is the starting resource block of the starting subchannel of the PSSCH to which it is associated).
  • the first stage SCI and/or the corresponding second stage SCI schedules the PSSCH (or the transmission of the PSSCH is scheduled, or the transmission of the TB carried in the PSSCH is scheduled).
  • the sender may be referred to as TX UE, and the receiver may be referred to as RX UE.
  • the PSFCH sent by the RX UE may carry feedback on the PSCCH and/or PSSCH sent by the TX UE.
  • the feedback may be referred to as "HARQ-ACK information".
  • the HARQ-ACK information may be an acknowledgement (ACK) or a negative acknowledgement (NACK, or NAK, Negative Acknowledgement); in other configurations, the HARQ-ACK information may only include NACK.
  • PSFCH resources can appear periodically in a resource pool, for example, the corresponding period (for example, called “PSFCH period” or "PSFCH resource period”," for example, recorded as For example, the unit is the number of time slots) can be configured through the parameter periodPSFCHresource (or parameter sl-PSFCH-Period-r16) (for example Another example Another example ). It can be used to indicate that no PSFCH resource is configured in the corresponding resource pool, and/or that the HARQ feedback in the corresponding resource pool is disabled.
  • a resource pool is not configured with PSFCH-related parameters (such as parameters configured through sl-PSFCH-Config-r16) or the PSFCH period configured in the parameter sl-PSFCH-Config-r16 is 0 timeslot, it means that PSFCH resources are not configured in the resource pool.
  • PSFCH-related parameters such as parameters configured through sl-PSFCH-Config-r16
  • the PSFCH period configured in the parameter sl-PSFCH-Config-r16 is 0 timeslot
  • the PSFCH resource can be configured in an RB set (for example, a set of continuous PRBs, or a set of partially or completely discontinuous PRBs), for example, configured through the parameter sl-PSFCH-RB-Set.
  • Fig. 1 is a flowchart showing a method executed by a user equipment according to the first embodiment of the present invention.
  • the steps performed by the user equipment UE include: step S101 and step S103.
  • step S101 the content of the message related to SL is set.
  • the step S101 is performed by a higher layer protocol (for example, RRC protocol) entity of the UE.
  • a higher layer protocol for example, RRC protocol
  • the "SL-related message" is an RRC message.
  • the "SL-related message" carries SL public control information.
  • the "SL-related message" is carried on the PSBCH in the S-SSB.
  • the "SL-related message" is a MasterInformationBlockSidelink message.
  • the "SL-related message" corresponds to (or is associated with) one SL carrier (denoted as C SL ). in,
  • the SL carrier C SL is a carrier used to transmit the "SL-related message".
  • the frequency of the SL carrier C SL is the UE Configure the frequency used to transmit and/or receive NR SL communication (denoted as f SL ).
  • the SL carrier C SL may correspond to (or be associated with) a cell (denoted as E). Among them, one or more of the following are established (where applicable):
  • the cell E exists only when there is in coverage on the frequency used for NR SL communication (for example , the frequency where the SL carrier C SL is located).
  • a carrier (denoted as C Uu ) in the cell E is configured with one or more parameters that are the same as the SL carrier C SL (for example, the absolute frequency of Point A, one or more A SCS and the carrier frequency corresponding to each SCS (for example, the starting frequency, or the center frequency; for example, the offset to point A is used, or the absolute frequency is used for expression) and/or the carrier bandwidth, etc.) .
  • the SL carrier C SL corresponds to (or is associated with) the carrier C Uu .
  • the carrier C Uu is a non-SUL carrier in the cell E.
  • the carrier C Uu is the UL carrier in the cell E.
  • the carrier C Uu is the SUL carrier in the cell E.
  • the frequency f SL of the SL carrier C SL is related to the frequency of the cell E (denoted as f Uu ) (“f SL concerns f Uu ”).
  • the cell E is a cell where the UE resides (camped cell).
  • the cell E is a serving cell of the UE.
  • the cell E is a primary cell (Primary Cell, PCell) of the UE.
  • Primary Cell PCell
  • the cell E is a primary SCG cell (Primary SCG Cell, PSCell) of the UE.
  • Primary SCG Cell Primary SCG Cell, PSCell
  • the cell E is a special cell (Special Cell, SpCell) of the UE.
  • the cell E is a secondary cell (Secondary Cell, SCell) of the UE.
  • SCell Secondary Cell
  • the SL carrier C SL may correspond to a carrier used for SL communication (for example, V2X communication based on the SL link).
  • the SL carrier C SL (or the spectrum corresponding to the SL carrier C SL ) is specifically allocated for SL communication.
  • the SL carrier C SL may correspond to a carrier used for V2X communication.
  • the SL carrier C SL (or the spectrum corresponding to the SL carrier C SL ) is specifically allocated for V2X communication.
  • the "message related to SL" corresponds to (or associated with) one SCS (e.g. SCS is configured to remember the corresponding SL [mu]), for example, the SL SL SCS of the carrier C, the carrier C and if the SL SCS SCS resource pool of BWP SL SL SL BWP of the SCS, and as a "message related to SL" of the transmission, and if a "message related to SL" of the transmission, and if The SCS of the S-SSB carrying the "SL-related message".
  • SCS is configured to remember the corresponding SL [mu]
  • the "SL-related message" may include one or more of the following:
  • ⁇ TDD configuration information for example, indicated by the parameter sl-TDD-Config. in,
  • the "TDD configuration information" may include one or more of the following parameters:
  • the "number of modes” may indicate the number of modes corresponding to (or included) in the "TDD configuration information”.
  • the corresponding pattern can be called “pattern 1";
  • N patterns 1 indicates that the number of patterns is 2, at this time, the corresponding two patterns Can be called “Mode 1" and “Mode 2" respectively.
  • N patterns 1 indicates that the number of patterns is 1.
  • the corresponding pattern can be called “pattern 1";
  • N patterns 0 indicates that the number of patterns is 2.
  • the corresponding two patterns Can be called “Mode 1" and “Mode 2" respectively.
  • Period information for example, record its value as I periods ).
  • the "period information" is used to indicate a period corresponding to one mode indicated by the "number of modes", or a period corresponding to two modes respectively. For example, if the number of modes indicated by the "number of modes" is 1, the “period information” indicates the period of mode 1 (for example, denoted as Q). For another example, if the number of modes indicated by the "number of modes” is 2, the “period information” indicates the period of mode 1 (for example, denoted as Q) and the period of mode 2 (for example, denoted as Q2), For example, according to the combination of Q and Q2, it is recorded as ⁇ Q, Q2>. in,
  • the unit of the period Q is milliseconds.
  • the unit of the period Q2 is milliseconds.
  • the set of values for I periods can be ⁇ 0, 1, 2, 3, 4, 5, 6, 7, 8 ⁇ , or ⁇ 1, 2, 3, 4, 5, 6, 7, 8, 9 ⁇ , or set ⁇ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 , 14, 15 ⁇ other subsets (for example, a subset of size 9); accordingly, the set of Q values can be ⁇ 0.5, 0.625, 1, 1.25, 2, 2.5, 4, 5, 10 ⁇ ;
  • the value set of periods can be mapped to the value set of Q one by one in any order, for example, the mapping is performed as shown in the following table.
  • the set of values of I periods can be ⁇ 0,1,2,3,4,5,6,7,8,9, 10, 11, 12, 13, 14, 15 ⁇ ; correspondingly, the set of values of ⁇ Q, Q2> can be ⁇ 0.5, 0.5>, ⁇ 0.625, 0.625>, ⁇ 1, 1>, ⁇ 0.5, 2 >, ⁇ 1.25,1.25>, ⁇ 2,0.5>, ⁇ 1,3>, ⁇ 2,2>, ⁇ 3,1>, ⁇ 1,4>, ⁇ 2,3>, ⁇ 2.5,2.5>, ⁇ 3, 2>, ⁇ 4, 1>, ⁇ 5, 5>, ⁇ 10, 10> ⁇ ; the set of values of I periods can be mapped to the set of values of ⁇ Q, Q2> in any order, for example Mapping is performed as shown in the table below.
  • ⁇ UL time slot information (UL slots, for example, record its value as I UL ).
  • the "UL time slot information" is used to indicate the number of UL time slots in the period corresponding to one mode indicated by the "number of modes", or the number of UL time slots in the period corresponding to the two modes respectively.
  • the number of UL time slots For example, if the number of modes indicated by the "number of modes" is 1, the "UL time slot information" indicates the number of UL time slots in the period of mode 1 (for example, denoted as D).
  • the "UL time slot information” indicates the number of UL time slots in the period of mode 1 (for example, denoted as D) and the mode The number of UL time slots in a period of 2 (for example, denoted as D2), for example, in a combination of D and D2, denoted as ⁇ D, D2>.
  • the SCS corresponding to the "number of UL time slots" is configured as the ⁇ SL .
  • the "covered” indication is a BOOLEAN type value.
  • the "covered" indication includes 1 bit.
  • Direct frame number for example, indicated by the parameter directFrameNumber.
  • the direct frame number may indicate the frame number of the corresponding S-SSB (for example, the S-SSB carrying the "SL-related message").
  • the "direct frame number" includes 10 bits.
  • the time slot index may indicate the index (or called number) of the time slot in which the corresponding S-SSB (for example, the S-SSB carrying the "SL-related message") is located, for example, the time slot is in the frame Number within. in,
  • the "time slot index" includes 7 bits.
  • the "reserved bits" includes 2 bits.
  • the "setting the content of the SL-related message" includes: for each i, executing one of the following two (for example, determining one of the following two in a predefined manner):
  • N is a predefined integer.
  • N 1 ⁇ ⁇
  • N 1 ⁇
  • each of the "SL setting conditions i" may include one or more of the following (any combination of “and” or “or” when applicable):
  • the cell E provides SIB12 messages.
  • the primary cell of the UE provides SIB12 messages.
  • the UE is configured to receive NR SL (or NR SL communication).
  • the UE is configured to transmit NR SL (or NR SL communication).
  • There is in coverage on the frequency used for NR SL communication (for example , the frequency where the SL carrier C SL is located).
  • the frequency f SL of the SL carrier C SL is related to the frequency f Uu of the cell E.
  • the SIB1 message contains the parameter tdd-UL-DL-ConfigurationCommon.
  • the parameter tdd-UL-DL-ConfigurationCommon is not included in the SIB1 message.
  • the parameter tdd-UL-DL-ConfigurationCommon in the SIB1 message contains pattern2.
  • the SIB1 message contains the parameter uplinkConfigCommon.
  • the parameter uplinkConfigCommon is not included in the SIB1 message.
  • the SIB1 message contains the parameter supplementaryUplink.
  • the supplementaryUplink parameter is not included in the SIB1 message.
  • the cell E is a TDD cell.
  • the cell E is an FDD cell.
  • the carrier C Uu is configured through the parameter uplinkConfigCommon.
  • the carrier C Uu is configured through the parameter supplementaryUplink.
  • the carrier C Uu is a non-SUL carrier of the cell E.
  • the carrier C Uu is the SUL carrier of the cell E.
  • the carrier C Uu is the UL carrier of the cell E.
  • the SL carrier C SL corresponds to a carrier used for SL communication.
  • the SL carrier C SL corresponds to a carrier used for V2X communication.
  • TDD configuration for example, TDD-specific physical channel configuration.
  • the cell E is an FDD cell; for another example, the cell E is a TDD cell, and the carrier C Uu is the SUL carrier of the cell E; for another example, the SL carrier C SL corresponds to one
  • the SL carrier C SL corresponds to a carrier used for V2X communication.
  • each of the "SL setting operations i" may include one or more of the following:
  • N patterns of the "number of patterns" as the maximum value among all legal values (that is, excluding reserved or undefined values).
  • the value I UL of the "UL time slot information" is adjusted according to the N value defined in Table 3.
  • the value I UL of the "UL time slot information" is not adjusted.
  • Set the value I uL of the "UL time slot information" to the value when all time slots in the indicated (one or two) cycle are UL time slots.
  • the value of I UL that satisfies the condition at this time is related to one or more of ⁇ SL , N patterns , and I periods.
  • the "setting the content of the SL-related message” includes: if the TDD conditions are not met (or there is no applicable TDD configuration, for example, the SIB1 message does not include the parameter tdd-UL-DL-ConfigurationCommon), then: The value N patterns of the “number of patterns” is set to 0, the value I periods of the “period information” is set to 15, and the value I UL of the “UL time slot information” is set to 127.
  • step S103 the "SL-related message" is transmitted.
  • the step S103 may include one or more of the following:
  • the upper layer protocol entity of the UE submits the "SL-related message" to the lower layer protocol entity (for example, a physical layer entity) of the UE.
  • Transmit the "SL-related messages".
  • the underlying protocol entity for example, the physical layer entity
  • the UE transmits the "SL-related message”.
  • unconfigured may be replaced with “unconfigured and or not preconfigured”.
  • not configured may be replaced with “not (pre) configured”.
  • the SIB1 message is a SIB1 message received by the UE.
  • the SIB1 message corresponds to (or belongs to) the cell E.
  • the cell E broadcasts the SIB1 message
  • another example is that the primary cell of the UE configures the SIB1 message of the cell E for the UE.
  • the SIB1 message corresponds to (or belongs to) the primary cell of the UE.
  • the primary cell of the UE broadcasts the SIB1 message.
  • each of the "patterns” corresponds to a pattern in the TDD uplink and downlink configuration, such as the pattern defined by TDD-UL-DL-Pattern IE, such as the one in the SIB1 message Pattern1 or pattern2 in tdd-UL-DL-ConfigurationCommon in servingCellConfigCommon.
  • the ⁇ ref corresponds to the value of the SCS configuration indicated by the referenceSubcarrierSpacing in the parameter tdd-UL-DL-ConfigurationCommon.
  • the P, u slots , and u sym correspond to the value of the period indicated by dl-UL-TransmissionPeriodicity in pattern1 in the parameter tdd-UL-DL-ConfigurationCommon, and the indication of nrofUplinkSlots.
  • the P2, u slots, 2 , u sym, 2 respectively correspond to the dl-UL- in the pattern2 (if configured) in the parameter tdd-UL-DL-ConfigurationCommon.
  • the "UL time slot” refers to a time slot that meets UL time slot conditions.
  • the UL time slot conditions refer to one or more of the following (any combination of "and” or "or” when applicable):
  • the symbol symbol symbol Configure as uplink symbol.
  • all symbols (for example, for NCP, symbol 0, symbol 1, ..., symbol 13, and for ECP, symbol 0, symbol 1, ..., symbol 11) are all configured as uplink symbols.
  • the present invention provides a method for effectively combining the values of the parameters of the TDD configuration in the SL common control information to achieve an efficient TDD configuration indication.
  • FIG. 2 is used to illustrate a user equipment that can execute the method executed by the user equipment described in detail above in the present invention as a modified example.
  • Fig. 2 is a block diagram showing a user equipment UE related to the present invention.
  • the user equipment UE20 includes a processor 201 and a memory 202.
  • the processor 201 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 202 may include, for example, volatile memory (such as random access memory RAM), hard disk drive (HDD), non-volatile memory (such as flash memory), or other memories.
  • the memory 202 stores program instructions. When the instruction is executed by the processor 201, it can execute the above-mentioned method executed by the user equipment described in detail in the present invention.
  • the method and related equipment of the present invention have been described above in conjunction with preferred embodiments. Those skilled in the art can understand that the methods shown above are only exemplary, and the various embodiments described above can be combined with each other without any 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, may also include modules that can be developed or developed in the future and can be used for base stations, MMEs, or UEs, and so on.
  • the various identifiers shown above are only exemplary rather than restrictive, and the present invention is not limited to specific information elements as examples of these identifiers. Those skilled in the art can make many changes and modifications based on the teaching of the illustrated embodiment.
  • the above-mentioned embodiments of the present invention can be implemented by software, hardware, or a combination of both software and hardware.
  • 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 processing Device, application specific integrated circuit (ASIC), field programmable gate array (FPGA), programmable logic device (CPLD), etc.
  • DSP digital signal processing
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD programmable logic device
  • base station may refer to a mobile communication data and control switching center with a certain transmission power and a certain coverage area, including functions such as resource allocation and scheduling, data reception and transmission.
  • User equipment may refer to a user's mobile terminal, for example, including mobile phones, notebooks, and other terminal devices that can communicate with base stations or micro base stations wirelessly.
  • the embodiments of the present invention disclosed herein can be implemented on a computer program product.
  • the computer program product is a product that has a computer-readable medium with computer program logic encoded on the computer-readable medium, and when executed on a computing device, the computer program logic provides related operations to implement The above technical solution of the present invention.
  • the computer program logic When executed on at least one processor of the computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments 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 as software, code and/or other data structures such as one or more Firmware or microcode on a ROM or RAM or PROM chip, or downloadable software images, shared databases, etc. in one or more modules.
  • Software or firmware or such a configuration may 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 base station device and the terminal device used in each of the foregoing embodiments may be implemented or executed by a circuit, and the circuit is usually one or more integrated circuits.
  • Circuits designed to perform the functions described in this specification can include general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC) or general-purpose integrated circuits, field programmable gate arrays (FPGA), or other Programming logic devices, discrete gate or transistor logic, or discrete hardware components, or any combination of the above devices.
  • the general-purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine.
  • the general-purpose processor or each circuit described above may be configured by a digital circuit, or may be configured by a logic circuit.
  • the present invention can also use an integrated circuit obtained by using the advanced technology.

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Abstract

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:设置S-SS/PSBCH块中的PSBCH中的消息的12个比特的内容,以及传输所述S-SS/PSBCH块。其中,所述12个比特中的一个比特用于指示TDD配置中使用模式1,或者使用模式1和模式2,并且对FDD,或者对只支持PC5接口、且未提供TDD配置的频谱,所述12个比特全部设置为'1'。

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5G V2X中,需要在SL***配置信息(如MasterInformationBlockSidelink消息)中的一个大小受限(例如大小为12比特)的字段中指示TDD配置信息,这给所述字段的设计,例如如何分配所述字段的每个码点(code point)所指示的信息,带来了很大的挑战。
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
非专利文献2:RP-170798,New WID on 3GPP V2X Phase 2
非专利文献3:RP-170855,New WID on New Radio Access Technology
非专利文献4:RP-190766,New WID on 5G V2X with NR sidelink
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,通过在SL公共控制信息中有效地组合TDD配置的参数的值,实现了高效的TDD配置的指示。
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:设置S-SS/PSBCH块中的PSBCH中的消息的12个比特的内容,以及传输所述S-SS/PSBCH块。其中,所述12个比特中的一个比特用于指示TDD配置中使用模式1,或者使用模式1和模式2,并且对FDD,或者对只支 持PC5接口、且未提供TDD配置的频谱,所述12个比特全部设置为‘1’。
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,通过在SL公共控制信息中有效地组合TDD配置的参数的值,实现了高效的TDD配置的指示。
附图说明
通过下文结合附图的详细描述,本发明的上述和其它特征将会变得更加明显,其中:
图1是示出了根据本发明的实施例一的由用户设备执行的方法的流程图。
图2示出了本发明所涉及的用户设备UE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5G移动通信***及其后续的演进版本作为示例应用环境,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它的无线通信***,例如5G之后的通信***以及5G之前的4G移动通信***等。
下面描述本发明涉及的部分术语,如未特别说明,本发明涉及的术语采用此处定义。本发明给出的术语在LTE、LTE-Advanced、LTE-Advanced Pro、NR以及之后的通信***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***中时,可以替换为相应***中采用的术语。
3GPP:3rd Generation Partnership Project,第三代合作伙伴计划
AGC:Automatic Gain Control,自动增益控制
AL:Aggregation Level,聚合等级
AS:Access Stratum,接入层
BWP:Bandwidth Part,带宽片段
CA:Carrier Aggregation,载波聚合
CCE:control-channel element,控制信道元素
CORESET:control-resource set,控制资源集
CP:Cyclic Prefix,循环前缀
CP-OFDM:Cyclic Prefix Orthogonal Frequency Division Multiplexing,循环前缀正交频分复用
CRB:Common Resource Block,公共资源块
CRC:Cyclic Redundancy Check,循环冗余校验
CSI:Channel-state Information,信道状态信息
CSS:Common Search Space,公共搜索空间
DC:Dual Connectivity,双连接
DCI:Downlink Control Information,下行控制信息
DFN:Direct Frame Number,直接帧号
DFT-s-OFDM:Discrete Fourier Transformation Spread Orthogonal Frequency Division Multiplexing,离散傅里叶变换扩频正交频分复用
DL:Downlink,下行
DL-SCH:Downlink Shared Channel,下行共享信道
DM-RS:又称为DMRS,Demodulation reference signal,解调参考信号
eMBB:Enhanced Mobile Broadband,增强的移动宽带通信
eNB:E-UTRAN Node B,E-UTRAN节点B
E-UTRAN:Evolved UMTS Terrestrial Radio Access Network,演进的UMTS陆地无线接入网
FDD:Frequency Division Duplex,频分双工
FDRA:Frequency Domain Resource Assignment,频域资源分配
FR1:Frequency Range 1,频率范围1
FR2:Frequency Range 1,频率范围2
GLONASS:GLObal NAvigation Satellite System,全球导航卫星***
gNB:NR Node B,NR节点B
GNSS:Global Navigation Satellite System,全球导航卫星***
GPS:Global Positioning System,全球定位***
HARQ:Hybrid Automatic Repeat Request,混合自动重复请求
ID:Identity(或者Identifier),身份,标识符
IE:Information Element,信息元素
IP:Internet Protocol,网际协议
LCID:Logical Channel ID,逻辑信道标识符
LSB:Least Significant Bit,最低有效位
LTE:Long Term Evolution,长期演进
LTE-A:Long Term Evolution-Advanced,长期演进-升级版
MAC:Medium Access Control,介质访问控制
MAC CE:MAC Control Element,MAC控制元素
MCG:Master Cell Group,主小区组
MIB:Master Information Block,主信息块
MIB-SL:Master Information Block-Sidelink,主信息块-直行
MIB-SL-V2X:Master Information Block-Sidelink-V2X,主信息块-直行-车辆到任何实体
MIB-V2X:Master Information Block-V2X,主信息块-车辆到任何实体
MSB:Most Significant Bit,最高有效位
mMTC:massive Machine Type Communication,大规模机器类通信
NAS:Non-Access-Stratum,非接入层
NDI:New Data Indicator,新数据指示符
NR:New Radio,新无线电
NUL:Normal Uplink,正常上行
OFDM:Orthogonal Frequency Division Multiplexing,正交频分复用
PBCH:Physical Broadcast Channel,物理广播信道
PDCCH:Physical Downlink Control Channel,物理下行控制信道
PDCP:Packet Data Convergence Protocol,分组数据汇聚协议
PDSCH:Physical Downlink Shared Channel,物理下行共享信道
PSBCH:Physical Sidelink Broadcast Channel,物理直行广播信道
PSCCH:Physical Sidelink Control Channel,物理直行控制信道
PSFCH:Physical Sidelink Feedback Channel,物理直行反馈信道
PSSCH:Physical Sidelink Shared Channel,物理直行共享信道
PRB:Physical Resource Block,物理资源块
PSS:Primary Synchronization Signal,主同步信号
PSS-SL:Primary Synchronization Signal for Sidelink,直行主同步信号
PSSS:Primary Sidelink Synchronization Signal,主直行同步信号
PTAG:Primary Timing Advance Group,主定时提前组
PUSCH:Physical uplink shared channel,物理上行共享信道
PUCCH:Physical uplink control channel,物理上行控制信道
QCL:Quasi co-location,准共置
QoS:Quality of Service,服务质量
QZSS:Quasi-Zenith Satellite System,准天顶卫星***
RAR:Random Access Response,随机接入响应
RB:Resource Block,资源块
RE:Resource Element,资源元素
REG:resource-element group,资源元素组
RF:Radio Frequency,射频
RLC:Radio Link Control,无线链路控制协议
RNTI:Radio-Network Temporary Identifier,无线网络临时标识符
RRC:Radio Resource Control,无线资源控制
RV:Redundancy Version,冗余版本
S-BWP:Sidelink Bandwidth Part,直行带宽片段
S-MIB:Sidelink Master Information Block,直行主信息块
S-PSS:Sidelink Primary Synchronization Signal,直行主同步信号
S-SSB:Sidelink SS/PBCH block,直行同步信号/物理广播信道块
S-SSS:Sidelink Secondary Synchronization Signal,直行辅同步信号
SCG:Secondary Cell Group,次小区组
SCI:Sidelink Control Information,直行控制信息
SCS:Subcarrier Spacing,子载波间隔
SDAP:Service Data Adaptation Protocol,业务数据适配协议
SFN:System Frame Number,***帧号
SIB:System Information Block,***信息块
SL:Sidelink,直行
SL BWP:Sidelink Bandwidth Part,直行带宽片段
SL MIB:Sidelink Master Information Block,直行主信息块
SL PSS:Sidelink Primary Synchronization Signal,直行主同步信号
SL SS:Sidelink Synchronisation Signal,直行同步信号
SL SSID:Sidelink Synchronization Signal Identity(或者Sidelink Synchronization Signal Identifier),直行同步信号标识
SL SSB:Sidelink SS/PBCH block,直行同步信号/物理广播信道块
SL SSS:Sidelink Secondary Synchronization Signal,直行辅同步信号
SLSS:Sidelink Synchronisation Signal,直行同步信号
SLSS ID:Sidelink Synchronization Signal Identity(或者Sidelink Synchronization Signal Identifier),直行同步信号标识
SLSSID:Sidelink Synchronization Signal Identity(或者Sidelink Synchronization Signal Identifier),直行同步信号标识
SpCell:Special Cell,特殊小区
SRS:Sounding Reference Signal,探测参考信号
SSB:SS/PBCH block,同步信号/物理广播信道块
SSB-SL:SS/PBCH block for Sidelink,直行同步信号/物理广播信道块
SSS:Secondary Synchronization Signal,辅同步信号
SSS-SL:Secondary Synchronization Signal for Sidelink,直行辅同步信号
SSSB:Sidelink SS/PBCH block,直行同步信号/物理广播信道块
SSSS:Secondary Sidelink Synchronization Signal,辅直行同步信号
STAG:Secondary Timing Advance Group,辅定时提前组
Sub-channel:子信道
SUL:Supplementary Uplink,补充上行
TA:Timing Advance,定时提前
TAG:Timing Advance Group,定时提前组
TB:Transport Block,传输块
TCP:Transmission Control Protocol,传输控制协议
TDD:Time Division Duplex,时分双工
TPC:Transmit power control,传输功率控制
UE:User Equipment,用户设备
UL:Uplink,上行
UMTS:Universal Mobile Telecommunications System,通用移动通信***
URLLC:Ultra-Reliable and Low Latency Communication,超可靠低延迟通信
USS:UE-specific Search Space,UE特定搜索空间
V2I:Vehicle-to-Infrastructure,车辆到基础设施
V2N:Vehicle-to-network,车辆到网络
V2P:Vehicle-to-Pedestrian,车辆到行人
V2V:Vehicle-to-vehicle,车辆到车辆
V2X:Vehicle-to-everything,车辆到任何实体
VRB:Virtual Resource Block,虚拟资源块
在本发明的所有实施例和实施方式中,如未特别说明:
● 可选地,在适用的情况下,“V2X通信”、“V2X SL通信”和“SL V2X通信”可以互换。
● 可选地,在上下文清楚的情况下,可以认为在一个TDD小区中可以配置一个DL载波、一个UL载波以及,可选地,一个SUL载波。其中,所述UL载波也可以称为“非SUL载波”。
● 可选地,在上下文清楚的情况下,可以认为在一个TDD小区中,“非SUL载波”是一种“UL载波”。例如,一个TDD小区可以配置一个UL载波,称为“非SUL载波”。又如,一个TDD 小区可以配置两个UL载波,其中一个是“非SUL载波”,另一个是“SUL载波”。
● 可选地,在适用的情况下,“发送”和“传输”可以互换。
● 可选地,在适用的情况下,“SL载波内”和“SL载波上”可以互换。
● 可选地,在适用的情况下,“SL BWP内”和“SL BWP上”可以互换。
● 可选地,若S 1是一个集合,则S 1的子集可以是S 1中的零个或一个或多个(包括全部)元素的集合。
● 可选地,若S 1和S 2是两个集合,则S 1-S 2表示集合S 1和集合S 2的“差集”,即集合S 1中不属于集合S 2的元素的集合。
● 可选地,若S 1和S 2是两个集合,则S 1-S 2={x|x∈S 1
Figure PCTCN2021093309-appb-000001
}。
● 可选地,对集合S 1中的元素进行操作(例如筛选、变换等)后得到集合S 2,可以等同于直接在原集合S 1中进行操作,得到更新后的集合S 1
● 可选地,“高层”可以指物理层之上的一个或多个协议层或协议子层。例如MAC层,又如RLC层,又如PDCP层,又如PC5 RRC层,又如PC5-S层,又如RRC层,又如V2X层,又如应用层,又如V2X应用层,等等。
● 可选地,“预配置”可以是通过高层协议/信令进行预配置(pre-configure)。例如预置(例如按高层协议的规范预置)在UE中特定的存储位置,或者预置(例如按高层协议的规范预置)在UE能存取的特定的存储位置。
● 可选地,“配置”可以是通过高层协议/信令进行配置。例如通过RRC信令为UE配置。
● 可选地,时域(time-domain)资源又可以称为时间(time)资源。
● 可选地,频域(frequency-domain)资源又可以称为频率(frequency)资源。
● 可选地,“符号”指的是“OFDM符号”。
● 可选地,在一个时隙内,OFDM符号的编号可以从0开始。例 如对于正常CP,在一个时隙内的OFDM符号的编号的集合可以是{0,1,...,13}。又如对于扩展CP,在一个时隙内的OFDM符号的编号的集合可以是{0,1,...,11}。
● 可选地,资源块可以指虚拟资源块(virtual resource block,VRB),也可以指物理资源块(physical resource block,PRB),也可以指公共资源块(common resource block,CRB),也可以指按其他方式定义的资源块。
● 可选地,子信道(subchannel,或者sub-channel)的编号可以从0开始。例如,若资源池中配置的子信道的个数为
Figure PCTCN2021093309-appb-000002
则子信道的编号的集合可以是
Figure PCTCN2021093309-appb-000003
● 可选地,在一个资源块内,子载波的编号可以从0开始。例如在一个资源块内的子载波的编号的集合可以是{0,1,...,11}。
● 可选地,一个大小为L比特的参数的取值可以用一个整数值(例如0,1,2,等等)表示,也可以等同地用所述整数对应的比特串(bit string,例如长度L的比特串,例如‘b 0b 1...b L-1’)表示。
其中,
◆ 可选地,所述比特串‘b 0b 1...b L-1’中,第一个(即最左边的)比特(即b 0)为最高有效位,最后一个(即最右边的)比特(即b L-1)为最低有效位。例如,若L=3,且所述参数的取值用比特串表示为‘011’,则所述参数的最高有效位的值为0。
◆ 可选地,所述比特串‘b 0b 1...b L-1’中,第一个(即最左边的)比特(即b 0)为最低有效位,最后一个(即最右边的)比特(即b L-1)为最高有效位。例如,若L=3,且所述参数的取值用比特串表示为‘011’,则所述参数的最低有效位的值为0。
例如,若L=1,则所述参数的值0和1可以分别对应‘0’和‘1’。
又如,若L=4,则所述参数的值0、1、2、3、4、5、6、7、8、9、10、11、12、13、14和15可以分别对应‘0000’、‘0001’、‘0010’、‘0011’、‘0100’、‘0101’、‘0110’、‘0111’、‘1000’、‘1001’、‘1010’、 ‘1011’、‘1100’、‘1101’、‘1110’和‘1111’。
又如,若L=7,则所述参数的值0、1、……、126和127可以分别对应‘0000000’、‘0000001’、……、‘1111110’和‘1111111’。
在基于D2D(Device to Device,设备到设备)技术的通信中,设备(也称为用户设备,User Equipment,UE)之间的接口可以称为PC5接口,相应的传输链路在物理层可以称为“直行”或者说“侧行”(sidelink,简称SL)链路,以区别于上行(uplink,简称UL)链路和下行(downlink,简称DL)链路。基于SL链路的通信可以称为SL通信(sidelink communication)。基于LTE技术的SL链路可以称为LTE SL链路。基于NR技术的SL链路可以称为NR SL链路。5G V2X通信可以基于LTE SL,也可以基于NR SL。下文中如未特别说明,“SL”指的是NR SL。
SL链路的物理层可以支持在有覆盖(in-coverage)、无覆盖(out-of-coverage)和部分覆盖(partial-coverage)场景中的一种或多种场景下进行一种或多种模式的传输,例如广播(broadcast)传输,又如组播(groupcast)传输,又如单播(unicast)传输,等等。
对FRl(Frequency Range 1,频率范围1),SL链路对应的SCS(subcarrier spacing,子载波间隔,记为Δf,单位为kHz)可以是15kHz(正常CP),或30kHz(正常CP),或60kHz(正常CP或扩展CP);对FR2(Frequency Range 2,频率范围2),SL链路对应的SCS可以是60kHz(正常CP或扩展CP),或120kHz(正常CP)。每个SCS分别对应一个SCS配置(SCS configuration,记为μ),例如,Δf=15kHz对应μ=0,Δf=30kHz对应μ=1,Δf=60kHz对应μ=2,Δf=120kHz对应μ=3,等等;又如,对任意一个给定的μ,Δf=2 μ·15kHz。μ可以是SL载波的SCS配置;例如,一个SL载波中的所有SL传输都使用同一个SCS配置和/或同一个CP。μ可以是SL BWP(Sidelink Bandwidth Part,直行带宽片段,或者称为S-BWP,或者称为SBWP,或者称为SL-BWP,或者称为BWP-SL,或者简称为BWP)的SCS配置;例如,一个SL BWP中的所有SL传输都使用同一个SCS配置和/或同一个CP。μ可以是资源池(resource pool)的SCS配置;例如,一个资源池中的所有SL传输都 使用同一个SCS配置和/或同一个CP。
与SL操作有关的信号和信道可以包括:
● SL PSS(Sidelink Primary Synchronization Signal,直行主同步信号),或者称为S-PSS,或者称为SPSS,或者称为SL-PSS,或者称为PSS-SL,或者称为PSSS(Primary Sidelink Synchronization Signal,主直行同步信号),等等。
● SL SSS(Sidelink Secondary Synchronization Signal,直行辅同步信号),或者称为S-SSS,或者称为SSSS(Sidelink Secondary Synchronization Signal),或者称为SL-SSS,或者称为SSS-SL,或者称为SSSS(Secondary Sidelink Synchronization Signal,辅直行同步信号),等等。
● PSBCH(Physical Sidelink Broadcast Channel,物理直行广播信道)。
● PSCCH(Physical Sidelink Control Channel,物理直行控制信道)。
● PSSCH(Physical Sidelink Shared Channel,物理直行共享信道)。
● PSFCH(Physical Sidelink Feedback Channel,物理直行反馈信道)。
SL PSS、SL SSS和PSBCH一起可以在时频(time/frequency)资源上组织成块状的形式,例如称为S-SSB(Sidelink Synchronization Signal/PSBCH block,或者SSS/PSBCH block,直行同步信号/物理直行广播信道块),或者称为SSS/PSBCH块,或者称为SS/PSBCH块,或者称为S-SS/PSBCH块,或者称为SL SSB,或者称为SSSB,或者称为SL-SSB,或者称为SSB-SL。S-SSB的传输带宽(例如,11个资源块)可以位于相应的SL载波内(例如,位于所述SL载波内配置的一个SL BWP内)。SL PSS和/或SL SSS可以携带SL SSID(Sidelink Synchronization Identity,或者Sidelink Synchronization Identifier,直行同步标识,或者Sidelink Synchronization Signal Identity,或者Sidelink Synchronization Signal Identifier,直行同步信号标识,或者称为SL-SSID,或者称为SSID-SL,或者称为SLSSID,或者称为SLSS ID,或者称为S-SSID,等等),PSBCH可以携带SL MIB(Sidelink Master Information Block,直行主信息块,或者称为SL-MIB,或者称为S-MIB,或者称为MIB-SL,或者称为MasterInformationBlockSidelink),例如通过参数 masterInformationBlockSidelink配置。
在SL链路上,用于传输S-SSB的时域和/或频域资源可以通过高层参数进行配置。例如,在频域上,可以通过参数absoluteFrequencySSB-SL(或者参数sl-AbsoluteFrequencySSB-r16)配置S-SSB在频域上的位置。又如,在时域上,可以通过参数sl-SyncConfigList-r16配置一个或多个同步配置项,其中每一个同步配置项中,可以通过参数numSSBwithinPeriod-SL(或者参数sl-NumSSB-WithinPeriod-r16)配置在长度为16个帧的S-SSB周期内的
Figure PCTCN2021093309-appb-000004
个S-SSB,其中,编号(或者说索引)为i S-SSB
Figure PCTCN2021093309-appb-000005
的S-SSB所在的时隙(slot)在长度为16帧的周期内的索引可以是
Figure PCTCN2021093309-appb-000006
其中
Figure PCTCN2021093309-appb-000007
可以通过参数timeOffsetSSB-SL(或者参数sl-TimeOffsetSSB-r16)配置,
Figure PCTCN2021093309-appb-000008
可以通过参数timeIntervalSSB-SL(或者参数sl-TimeInterval-r16)配置。
有时候,可以认为为SL载波中的S-SSB配置的时域资源和/或频域资源对应的是候选(candidate)S-SSB(或者称为S-SSB候选)。在一个候选S-SSB所对应的时域和/或频域资源上,可能同时存在一个或多个S-SSB传输(例如,分别来自不同UE),也可能不存在任何S-SSB传输。
有时候,一个配置了S-SSB(或者说配置了S-SSB资源,或者说配置了候选S-SSB,或者说配置了候选S-SSB资源)的时隙也可以称为配置了SLSS(或者说配置了SLSS资源)的时隙。反之亦然。
与SL同步有关的同步源(synchronization source,或者称为同步参考,synchronization reference,或者称为同步参考源,synchronization reference source)可以包括GNSS(Global navigation satellite system,全球导航卫星***)、gNB、eNB和UE(例如NR UE,又如LTE UE,又如NR UE或LTE UE)。一个作为同步源的UE(例如,传输S-SSB的UE),可以称为SyncRef UE。
GNSS的例子可以包括GPS(Global Positioning System,全球定位***)、GLONASS(GLObal NAvigation Satellite System,全球导航卫星***)、BeiDou(北斗导航卫星***)、Galileo(伽利略导航卫星***)、QZSS(Quasi-Zenith Satellite System,准天顶卫星***)等。
SL载波内可以配置一个或多个(例如一个)SL BWP。在每一个SL BWP内,可以通过参数startSLsymbols(或者参数sl-StartSymbol-r16)配置在一个可以进行SL传输的时隙内的用于SL传输的起始符号(例如记所述符号在所述时隙内的编号为
Figure PCTCN2021093309-appb-000009
),以及通过参数lengthSLsymbols(或者参数sl-LengthSymbols-r16)配置在所述时隙内的用于SL传输的符号个数(例如记所述符号个数为
Figure PCTCN2021093309-appb-000010
)。
Figure PCTCN2021093309-appb-000011
的取值集合可以记为
Figure PCTCN2021093309-appb-000012
例如
Figure PCTCN2021093309-appb-000013
的取值集合可以记为
Figure PCTCN2021093309-appb-000014
例如
Figure PCTCN2021093309-appb-000015
所述“用于SL传输的符号”可以称为“SL符号”。记所述时隙内的SL符号的集合(按时间先后顺序)为
Figure PCTCN2021093309-appb-000016
Figure PCTCN2021093309-appb-000017
Figure PCTCN2021093309-appb-000018
例如,若
Figure PCTCN2021093309-appb-000019
则在所述时隙内的SL符号的集合为{7,8,9,10,11,12,13}。
只有满足一定的条件的时隙才可以进行SL传输。例如,所述时隙中至少符号
Figure PCTCN2021093309-appb-000020
符号
Figure PCTCN2021093309-appb-000021
符号
Figure PCTCN2021093309-appb-000022
是上行符号(例如半静态配置的上行符号)。又如,所述时隙必须在一个已配置的资源池的时隙集合中。
一个SL BWP内可以配置一个或多个资源池,其中,在每一个资源池内,
● 在频域,可以通过参数startRB-Subchannel(或者参数sl-StartRB-Subchannel-r16)配置所述资源池在SL BWP内的起始 子信道的起始资源块的位置。
● 在频域,可以通过参数numSubchannel(或者参数sl-NumSubchannel-r16)配置所述资源池占用的子信道的个数(记为
Figure PCTCN2021093309-appb-000023
)。所述
Figure PCTCN2021093309-appb-000024
个子信道在频域上可以是连续的。
● 在频域,每个子信道可以由一个或多个资源块组成,具体的资源块个数(称为子信道的大小,例如记为n subChannelSize)可以通过参数subchannelsize(或者参数sl-SubchannelSize-r16)配置。所述n subChannelSize个资源块在频域上可以是连续的。
● 在频域,按频率从小到大的顺序,一个资源池内的各个子信道可以分别编号为
Figure PCTCN2021093309-appb-000025
其中,编号为i的子信道可以称为“子信道i”
Figure PCTCN2021093309-appb-000026
● 在时域,可以通过参数timeresourcepool(或者参数sl-TimeResource-r16)配置周期性出现的可用于所述资源池(或者说属于所述资源池)的一个或多个时隙(例如通过时隙位图的方式),其中周期的大小可以是一个预定义的值,或者通过参数periodResourcePool(或者参数sl-Period-r16)配置。
与SL操作有关的资源(例如时域资源,又如频域资源,又如码域资源)的分配方式可以分类如下:
● 模式1(Mode 1):基站调度用于SL传输的SL资源。
● 模式2(Mode 2):UE确定用于SL传输的SL资源(即基站不参与SL资源的调度)。例如,执行SL传输操作的UE自主确定用于SL传输的SL资源。
UE可以通过SCI(Sidelink Control Information,直行控制信息)调度数据的传输。SL操作可以支持“两阶段SCI”(two-stage SCI),其中第一阶段SCI(1 st-stage SCI)可以包含资源预留和/或资源分配等信息,以便于所有正在监测(monitor)SL链路的UE对于资源预留和/或资源分配情况进行检测(sensing);第二阶段SCI(2 nd-stage SCI)可以包含其他信息,例如和HARQ反馈相关的信息等。下文中如未特别说明,在单独提到“SCI”时,可以只包括第一阶段SCI,也可以只包括第二阶段SCI,也可以既包括第一阶段SCI也包括第二阶段SCI。
第一阶段SCI的格式可以是SCI格式0-1(或者写成“SCI格式0_1”)。下面是SCI格式0-1中可以包含的信息的一些例子:
● 优先级(Priority)。
● 频率资源分配(Frequency resource assignment)。
● 时间资源分配(Time resource assignment)。
● 资源预留周期(Resource reservation period)。
● DMRS模式(DMRS pattern)。
● 第二阶段SCI格式(2 nd-stage SCI format)。
第二阶段SCI的格式可以是SCI格式0-2(或者写成“SCI格式0_2”)。下面是SCI格式0-2中可以包含的信息的一些例子:
● 源层一标识符(Source Layer-1 ID,或者称为Layer-1 Source ID,层一源标识符,或者称为Physical Layer Source ID,物理层源标识符,或者(在上下文清楚的情况下)称为Source ID,源标识符)。
● 目标层一标识符(Destination Layer-1 ID,或者称为Layer-1 Destination ID,层一目标标识符,或者称为Physical Layer Destination ID,物理层目标标识符,或者(在上下文清楚的情况下)称为Destination ID,目标标识符)。
● HARQ进程标识(HARQ Process ID),或者说HARQ进程号(HARQ Process Number)。
● 新数据标识(New Data Indicator,NDI)。
● 冗余版本(Redundancy Version,RV)。
第一阶段SCI可以携带在PSCCH上。第二阶段SCI可以和要传输的数据一起复用在PSCCH关联的(或者说调度的)PSSCH上。PSCCH及其所关联的PSSCH可以通过一定的方式复用在为SL传输分配的时域和/或频域资源上(例如,PSCCH的起始资源块所在的子信道是其所关联的PSSCH的起始子信道。又如,PSCCH的起始资源块是其所关联的PSSCH的起始子信道的起始资源块)。另外,可以认为第一阶段SCI和/或相应的第二阶段SCI调度了PSSCH(或者说调度了PSSCH的传输,或者说调度了PSSCH中携带的TB的传输)。
对于一个特定的包含PSCCH和/或PSSCH的SL传输,发送方可以称为TX UE,接收方可以称为RX UE。若所述SL传输是一个组播(groupcast)传输,或者单播(unicast)传输,在启用HARQ反馈的情况下,RX UE发送的PSFCH可以携带对TX UE发送的PSCCH和/或PSSCH的反馈,其中,所述反馈可以称为“HARQ-ACK信息”。在一些配置下,HARQ-ACK信息可以是肯定应答(ACK),或者否定应答(NACK,或者NAK,Negative Acknowledgement);在另一些配置下,HARQ-ACK信息可以只包含NACK。
在时域,PSFCH资源可以在一个资源池中周期性地出现,例如相应的周期(例如称为“PSFCH周期”或者“PSFCH资源周期”,例如记为
Figure PCTCN2021093309-appb-000027
例如单位为时隙个数)可以通过参数periodPSFCHresource(或者参数sl-PSFCH-Period-r16)进行配置(例如
Figure PCTCN2021093309-appb-000028
又如
Figure PCTCN2021093309-appb-000029
又如
Figure PCTCN2021093309-appb-000030
)。
Figure PCTCN2021093309-appb-000031
可以用于指示相应的资源池中没有配置PSFCH资源,和/或表示相应的资源池中HARQ反馈被禁用。例如,若一个资源池未配置PSFCH相关的参数(例如通过sl-PSFCH-Config-r16进行配置的参数)或者参数sl-PSFCH-Config-r16中配置的PSFCH周期为0时隙,则表示所述资源池未配置PSFCH资源。可选地,若一个资源池已配置参数sl-PSFCH-Config-r16且参数sl-PSFCH-Config-r16中配置的PSFCH周期大于0时隙,则表示所述资源池已配置PSFCH资源。
与PSFCH周期有关的时隙可以是“逻辑时隙”,即只包括属于相应的资源池中的时隙;例如,在某个帧(frame)中的时隙0和时隙5属于某个资源池的时域资源,而时隙1、2、3和4不属于该资源池的时域资源,则在所述资源池中,所述时隙0和所述时隙5是两个相邻的“逻辑时隙”,例如分别编号为
Figure PCTCN2021093309-appb-000032
Figure PCTCN2021093309-appb-000033
在这个例子中,若sl-PSFCH-Period-r16=1,则所述时隙0和所述时隙5中都存在PSFCH资源。
在频域,PSFCH资源可以配置在一个RB集合(例如一组连续PRB的集合,又如一组部分或全部不连续的PRB的集合)中,例如通过参数sl-PSFCH-RB-Set进行配置。
[实施例一]
下面结合图1来说明本发明的实施例一的由用户设备执行的方法。
图1是示出了根据本发明的实施例一的由用户设备执行的方法的流程图。
如图1所示,在本发明的实施例一中,用户设备UE执行的步骤包括:步骤S101和步骤S103。
具体地,在步骤S101,设置与SL有关的消息的内容。其中,
● 可选地,所述步骤S101由所述UE的高层协议(例如RRC协议)实体执行。
● 可选地,所述“与SL有关的消息”是一个RRC消息。
● 可选地,所述“与SL有关的消息”中携带SL公共控制信息。
● 可选地,所述“与SL有关的消息”携带在S-SSB中的PSBCH上。
● 可选地,所述“与SL有关的消息”是MasterInformationBlockSidelink消息。
● 可选地,所述“与SL有关的消息”对应(或者关联)一个SL载波(记为C SL)。其中,
◆ 可选地,所述SL载波C SL是用于传输所述“与SL有关的消息”的载波。
◆ 可选地,所述SL载波C SL的频率(例如起始频率,又如中心频率,又如占用的频率范围,又如起始频率和带宽,又如中心频率和带宽)是所述UE配置用于传输和/或接收NR SL通信的频率(记为f SL)。
◆ 可选地,所述SL载波C SL可以对应(或者关联)一个小区(记为E)。其中,下面的一项或多项成立(在适用的情况下):
○ 可选地,仅当在用于NR SL通信的频率(例如所述SL载波C SL所在的频率)上有覆盖(in coverage)时,存 在所述小区E。
○ 可选地,所述小区E中的一个载波(记为C Uu)配置了和所述SL载波C SL相同的一个或多个参数(例如A点(Point A)的绝对频率、一个或多个SCS以及每个所述SCS分别对应的载波频率(例如起始频率,又如中心频率;例如使用到A点的偏移表示,又如使用绝对频率表示)和/或载波带宽,等等)。此时,可选地,可以认为所述SL载波C SL对应(或者关联)所述载波C Uu
其中,
◇ 可选地,所述载波C Uu是所述小区E中的非SUL载波。
◇ 可选地,所述载波C Uu是所述小区E中的UL载波。
◇ 可选地,所述载波C Uu是所述小区E中的SUL载波。
○ 可选地,所述SL载波C SL的频率f SL与所述小区E的频率(记为f Uu)有关(“f SL concerns f Uu”)。
○ 可选地,所述小区E是所述UE驻留的小区(camped cell)。
○ 可选地,所述小区E是所述UE的服务小区(serving cell)。
○ 又如,所述小区E是所述UE的主小区(Primary Cell,PCell)。
○ 可选地,,所述小区E是所述UE的主SCG小区(Primary  SCG Cell,PSCell)。
○ 可选地,,所述小区E是所述UE的特殊小区(Special Cell,SpCell)。
○ 可选地,,所述小区E是所述UE的辅小区(Secondary Cell,SCell)。
◆ 可选地,所述SL载波C SL可以对应一个用于SL通信(例如基于SL链路的V2X通信)的载波。例如,所述SL载波C SL(或者所述SL载波C SL对应的频谱)专门分配为用于SL通信。
◆ 可选地,所述SL载波C SL可以对应一个用于V2X通信的载波。例如,所述SL载波C SL(或者所述SL载波C SL对应的频谱)专门分配为用于V2X通信。
● 可选地,所述“与SL有关的消息”对应(或者关联)一个SCS(例如记相应的SCS配置为μ SL),例如所述SL载波C SL的SCS,又如所述SL载波C SL上的SL BWP的SCS,又如用于传输所述“与SL有关的消息”的SL BWP的SCS,又如用于传输所述“与SL有关的消息”的资源池的SCS,又如携带所述“与SL有关的消息”的S-SSB的SCS。
● 可选地,所述“与SL有关的消息”中可以包含下面中的一项或多项:
◆ TDD配置信息,例如通过参数sl-TDD-Config指示。其中,
○ 所述“TDD配置信息”中可以包含下面中的一项或多项参数:
◇ 模式个数(number of patterns,例如将其取值记为N patterns)。其中,
Figure PCTCN2021093309-appb-000034
可选地,所述“模式个数”的大小可以是X个比特,其中,X可以是一个预定义或预配置或 配置的值。例如,X=1。
Figure PCTCN2021093309-appb-000035
可选地,所述“模式个数”可以指示所述“TDD配置信息”对应(或者说包含)的模式的个数。
Figure PCTCN2021093309-appb-000036
可选地,N patterns=0指示模式的个数为1,此时,相应的模式可以称为“模式1”;N patterns=1指示模式的个数为2,此时,相应的两个模式可以分别称为“模式1”和“模式2”。
Figure PCTCN2021093309-appb-000037
可选地,N patterns=1指示模式的个数为1,此时,相应的模式可以称为“模式1”;N patterns=0指示模式的个数为2,此时,相应的两个模式可以分别称为“模式1”和“模式2”。
◇ 周期信息(periodicity information,例如将其取值记为I periods)。其中,
Figure PCTCN2021093309-appb-000038
可选地,所述“周期信息”的大小可以是Y个比特,其中,Y可以是一个预定义或预配置或配置的值。例如,Y=4。
Figure PCTCN2021093309-appb-000039
可选地,所述“周期信息”用于指示所述“模式个数”所指示的一个模式所对应的周期,或者两个模式所分别对应的周期。例如,若所述“模式个数”指示的模式的个数为1,则所述 “周期信息”指示模式1的周期(例如记为Q)。又如,若所述“模式个数”指示的模式的个数为2,则所述“周期信息”指示模式1的周期(例如记为Q)以及模式2的周期(例如记为Q2),例如,按Q和Q2的组合的方式,记为<Q,Q2>。其中,
Figure PCTCN2021093309-appb-000040
可选地,所述周期Q的单位为毫秒。
Figure PCTCN2021093309-appb-000041
可选地,所述周期Q2的单位为毫秒。例如,若所述“模式个数”指示的模式的个数为1,则I periods的值的集合可以是{0,1,2,3,4,5,6,7,8},或者是{1,2,3,4,5,6,7,8,9},或者集合{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}的其他子集(例如大小为9的子集);相应地,Q的值的集合可以是{0.5,0.625,1,1.25,2,2.5,4,5,10};I periods的值的集合可以按任意次序一一映射到Q的值的集合,例如按下表所示的方式进行映射。
表1
I periods Q
0 0.5
1 0.625
2 1
3 1.25
4 2
5 2.5
6 4
7 5
8 10
又如,若所述“模式个数”指示的模式的个数为2,则I periods的值的集合可以是{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};相应地,<Q,Q2>的值的集合可以是{<0.5,0.5>,<0.625,0.625>,<1,1>,<0.5,2>,<1.25,1.25>,<2,0.5>,<1,3>,<2,2>,<3,1>,<1,4>,<2,3>,<2.5,2.5>,<3,2>,<4,1>,<5,5>,<10,10>};I periods的值的集合可以按任意次序一一映射到<Q,Q2>的值的集合,例如按下表所示的方式进行映射。
表2
I periods <Q,Q2>
0 <0.5,0.5>
1 <0.625,0.625>
2 <1,1>
3 <0.5,2>
4 <1.25,1.25>
5 <2,0.5>
6 <1,3>
7 <2,2>
8 <3,1>
9 <1,4>
10 <2,3>
11 <2.5,2.5>
12 <3,2>
13 <4,1>
14 <5,5>
15 <10,10>
◇ UL时隙信息(UL slots,例如将其取值记为I UL)。
Figure PCTCN2021093309-appb-000042
可选地,所述“UL时隙信息”的大小可以是Z 个比特,其中,Z可以是一个预定义或预配置或配置的值。例如,Z=7。
Figure PCTCN2021093309-appb-000043
可选地,所述“UL时隙信息”用于指示所述“模式个数”所指示的一个模式所对应的周期内的UL时隙的个数,或者两个模式所分别对应的周期内的UL时隙的个数。例如,若所述“模式个数”指示的模式的个数为1,则所述“UL时隙信息”指示模式1的周期内的UL时隙的个数(例如记为D)。又如,若所述“模式个数”指示的模式的个数为2,则所述“UL时隙信息”指示模式1的周期内的UL时隙的个数(例如记为D)以及模式2的周期内的UL时隙的个数(例如记为D2),例如,按D和D2的组合的方式,记为<D,D2>。
Figure PCTCN2021093309-appb-000044
可选地,所述“UL时隙的个数”对应的SCS配置为所述μ SL
◆ “有覆盖”指示,例如通过参数inCoverage指示。其中,
○ 可选地,所述“有覆盖”指示是一个BOOLEAN类型的值。
○ 可选地,所述“有覆盖”指示包含1个比特。
◆ 直接帧号,例如通过参数directFrameNumber指示。其中,所述直接帧号可以指示相应S-SSB(例如携带所述“与SL有关的消息”的S-SSB)所在的帧号。其中,
○ 可选地,所述“直接帧号”包含10个比特。
◆ 时隙索引(或者称为时隙号),例如通过参数slotIndex指示。其中,所述时隙索引可以指示相应S-SSB(例如携带所述“与SL有关的消息”的S-SSB)所在的时隙的索引(或者称为编号),例如所述时隙在帧内的编号。其中,
○ 可选地,所述“时隙索引”包含7个比特。
◆ 保留比特,例如通过参数reservedBits指示。其中,
○ 可选地,所述“保留比特”包含2个比特。
● 可选地,所述“设置与SL有关的消息的内容”包括:对每一个i,执行下面两者之一(例如按预定义的方式确定下面两者中的一个):
◆ 若满足SL设置条件i,则执行SL设置操作i。
◆ 若不满足SL设置条件i,则执行SL设置操作i。
其中:
◆ 可选地,1≤i≤N。其中,
○ 可选地,N是一个预定义的整数。
○ 可选地,N≥1。
◆ 可选地,每一个所述“SL设置条件i”可以包括下面中的一项或多项(在适用的情况下按“与”或者“或”的方式任意组合):
○ 所述小区E提供SIB12消息。
○ 所述UE的主小区提供SIB12消息。
○ 所述UE配置为接收NR SL(或者说NR SL通信)。
○ 所述UE配置为传输NR SL(或者说NR SL通信)。
○ 在用于NR SL通信的频率(例如所述SL载波C SL所在的频率)上有覆盖(in coverage)。
○ 在用于NR SL通信的频率(例如所述SL载波C SL所在的频率)上无覆盖(out of coverage)。
○ 所述SL载波C SL的频率f SL与所述小区E的频率f Uu有关。
○ SIB1消息中包含参数tdd-UL-DL-ConfigurationCommon。
○ SIB1消息中不包含参数tdd-UL-DL-ConfigurationCommon。
○ SIB1消息中的参数tdd-UL-DL-ConfigurationCommon中包含pattern2。
○ SIB1消息中包含参数uplinkConfigCommon。
○ SIB1消息中不包含参数uplinkConfigCommon。
○ SIB1消息中包含参数supplementaryUplink。
○ SIB1消息中不包含参数supplementaryUplink。
○ 所述小区E是一个TDD小区。
○ 所述小区E是一个FDD小区。
○ 所述载波C Uu通过参数uplinkConfigCommon配置。
○ 所述载波C Uu通过参数supplementaryUplink配置。
○ 所述载波C Uu是所述小区E的非SUL载波。
○ 所述载波C Uu是所述小区E的SUL载波。
○ 所述载波C Uu是所述小区E的UL载波。
○ 所述SL载波C SL对应一个用于SL通信的载波。
○ 所述SL载波C SL对应一个用于V2X通信的载波。
○ 无适用的TDD配置(例如TDD特定的物理信道配置)。
例如,所述小区E是一个FDD小区;又如,所述小区E是一个TDD小区,且所述载波C Uu是所述小区E的SUL载波;又如,所述SL载波C SL对应一个用于SL通信的载波;又如,所述SL载波C SL对应一个用于V2X通信的载波。
◆ 可选地,每一个所述“SL设置操作i”可以包括下面中的一项或多项:
○ 设置所述“模式个数”的值N patterns为0。
○ 设置所述“模式个数”的值N patterns为1。
○ 设置所述“模式个数”的值N patterns为{0,1}中的任意一个值。
○ 设置所述“模式个数”的值N patterns为其所有合法取值(即不包括预留或未定义的取值)中的最大值。
○ 设置所述“模式个数”的值N patterns为其所有合法取值(即不包括预留或未定义的取值)中的最小值。
○ 设置所述“周期信息”的值I periods为所述“I periods的值的集合到Q的值的集合的映射关系”(例如表1)中对应Q=P的行中的I periods的值。
○ 设置所述“周期信息”的值I periods为所述“I periods的值的集合到<Q,Q2>的值的集合的映射关系”(例如表2)中对应<Q,Q2>=<P,P2>的行中的I periods的值。
○ 设置所述“周期信息”的值I periods为0。
○ 设置所述“周期信息”的值I periods为1。
○ 设置所述“周期信息”的值I periods为2。
○ 设置所述“周期信息”的值I periods为3。
○ 设置所述“周期信息”的值I periods为4。
○ 设置所述“周期信息”的值I periods为5。
○ 设置所述“周期信息”的值I periods为6。
○ 设置所述“周期信息”的值I periods为7。
○ 设置所述“周期信息”的值I periods为8。
○ 设置所述“周期信息”的值I periods为9。
○ 设置所述“周期信息”的值I periods为10。
○ 设置所述“周期信息”的值I periods为11。
○ 设置所述“周期信息”的值I periods为12。
○ 设置所述“周期信息”的值I periods为13。
○ 设置所述“周期信息”的值I periods为14。
○ 设置所述“周期信息”的值I periods为15。
○ 设置所述“周期信息”的值I periods为{0,1,...,15}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{0,1}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{0,1,2}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{0,1,2,3}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{0,1,...,4}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{0,1,...,5}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{0,1,...,6}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{0,1,...,7}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{0,1,...,8}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{7,8,...,15}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{8,9,...,15}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{9,10,...,15}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{10,11,...,15}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{11,12,...,15}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{12,13,14,15}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{13,14,15}中的任意一个值。
○ 设置所述“周期信息”的值I periods为{14,15}中的任意一个值。
○ 设置所述“周期信息”的值I periods为其所有合法取值(即不包括预留或未定义的取值)中的最大值。
○ 设置所述“周期信息”的值I periods为其所有合法取值(即不包括预留或未定义的取值)中的最小值。
○ 设置所述“UL时隙信息”的值I UL为下面中的一项:
Figure PCTCN2021093309-appb-000045
Figure PCTCN2021093309-appb-000046
Figure PCTCN2021093309-appb-000047
其中,
Figure PCTCN2021093309-appb-000048
可选地,u 1对应所述参数tdd-UL-DL-ConfigurationCommon中的pattern1中的“UL时隙”个数。例如,对NCP,若
Figure PCTCN2021093309-appb-000049
则u 1=u slots+1,否则u 1=u slots。又如,对ECP,若
Figure PCTCN2021093309-appb-000050
Figure PCTCN2021093309-appb-000051
则u 1=u slots+1,否则u 1=u slots。又如,u 1=u slots
Figure PCTCN2021093309-appb-000052
可选地,u 2对应所述参数tdd-UL-DL-ConfigurationCommon中的pattern2 (如果已配置)中的“UL时隙”个数。例如,对NCP,若
Figure PCTCN2021093309-appb-000053
则u 2=u slots,2+1,否则u 2=u slots,2。又如,对ECP,若
Figure PCTCN2021093309-appb-000054
则u 2=u slots,2+1,否则u 2=u slots,2。又如,u 2=u slots,2
Figure PCTCN2021093309-appb-000055
可选地,若所述参数tdd-UL-DL-ConfigurationCommon中的pattern2未配置,u 2=0。
○ 调整所述“UL时隙信息”的值I UL,例如,令I UL等于I UL/N。其中,
◇ 可选地,仅当所述参数tdd-UL-DL-ConfigurationCommon中的pattern2已配置时调整所述“UL时隙信息”的值I UL
◇ 可选地,仅当UL时隙信息调整条件满足时调整所述“UL时隙信息”的值I UL。例如,根据表3定义的N值调整所述“UL时隙信息”的值I UL
◇ 可选地,对于未定义N值的情况,不调整所述“UL时隙信息”的值I UL
◇ 可选地,对于未定义N值的情况,按N=1调整所述“UL时隙信息”的值I UL
表3 不同<Q,Q2>和μ SL组合下的N值
Figure PCTCN2021093309-appb-000056
Figure PCTCN2021093309-appb-000057
○ 设置所述“UL时隙信息”的值I UL为集合{0,1,...,127}中的一个预定义或预配置或配置的值。例如0,又如1,又如2,又如3,又如4,又如5,又如6,又如7,又如8,又如9,又如118,又如119,又如120,又如121,又如122,又如123,又如124,又如125,又如126,又如127。
○ 设置所述“UL时隙信息”的值I UL为集合{0,1,...,127}中的任意一个值。
○ 设置所述“UL时隙信息”的值I UL为集合{0,1,...,127}的一个预定义或预配置或配置的子集中的任意一个值。其中,所述子集可以是集合{0,1,...,127}的任意一个子集。
○ 设置所述“UL时隙信息”的值I UL为其所有合法取值(即不包括预留或未定义的取值)中的最大值。
○ 设置所述“UL时隙信息”的值I UL为其所有合法取值(即不包括预留或未定义的取值)中的最小值。
○ 设置所述“UL时隙信息”的值I UL为对应最大UL时隙个数的值。例如,若所述“模式个数”指示1个模式,则设置所述“UL时隙信息”的值I UL为当所述“UL时隙信息”指示模式1的周期内的UL时隙的个数D取最大值时所对应的I UL的值。又如,若所述“模式个数”指示2个模式,则设置所述“UL时隙信息”的值为当所述“UL时隙信息”指示模式1的周期内的UL时隙的个数以及模式2的周期内的UL时隙的个数的组合<D,D2>中D和D2都取最大值时所对应的I UL的值。
○ 设置所述“UL时隙信息”的值I uL为对应所指示的(一个或两个)周期内所有的时隙都是UL时隙时的值。其中,可选地,此时满足条件的I UL的值与μ SL、N patterns、I periods中的一个或多个有关。
例如,所述“设置与SL有关的消息的内容”包括:若不满足TDD条件(或者说无适用的TDD配置,例如所述SIB1消息中不包含参数tdd-UL-DL-ConfigurationCommon),则:设置所述“模式个数”的值N patterns为0,设置所述“周期信息”的值I periods为15,设置所述“UL时隙信息”的值I UL为127。
此外,在步骤S103,传输所述“与SL有关的消息”。例如,所述步骤S103可以包括下面中的一项或多项:
● 提交所述“与SL有关的消息”。例如,所述UE的高层协议实体将所述“与SL有关的消息”提交(submit)给所述UE的底层协议实体(例如物理层实体)。
● 传输所述“与SL有关的消息”。例如,所述UE的底层协议实体(例如物理层实体)传输所述“与SL有关的消息”。
可选地,在本发明的实施例一中,“已配置”可以替换为“已预配置”。
可选地,在本发明的实施例一中,“已配置”可以替换为“已配置或已预配置”。
可选地,在本发明的实施例一中,“未配置”可以替换为“未预配置”。
可选地,在本发明的实施例一中,“未配置”可以替换为“未配置且或未预配置”。
可选地,在本发明的实施例一中,“未配置”可以替换为“未(预)配置”。
可选地,在本发明的实施例一中,所述SIB1消息是所述UE接收到的SIB1消息。
可选地,在本发明的实施例一中,所述SIB1消息对应(或者说属于)所述小区E。例如,所述小区E广播所述SIB1消息,又如,所述UE的主小区为所述UE配置所述小区E的所述SIB1消息。
可选地,在本发明的实施例一中,所述SIB1消息对应(或者说属于)所述UE的主小区。例如,所述UE的主小区广播所述SIB1消息。
可选地,在本发明的实施例一中,每个所述“模式”对应TDD上下行配置中的一个模式,例如由TDD-UL-DL-Pattern IE所定义的模式,例如SIB1消息中的servingCellConfigCommon中的tdd-UL-DL-ConfigurationCommon中的pattern1或者pattern2。
可选地,在本发明的实施例一中,所述μ ref对应参数tdd-UL-DL-ConfigurationCommon中的referenceSubcarrierSpacing指示的SCS配置的值。
可选地,在本发明的实施例一中,所述P、u slots、u sym分别对应参数tdd-UL-DL-ConfigurationCommon中的pattern1中的dl-UL-TransmissionPeriodicity指示的周期的值、nrofUplinkSlots指示的时隙个数、nrofUplinkSymbols指示的符号个数。
可选地,在本发明的实施例一中,所述P2、u slots,2、u sym,2分别对应参数tdd-UL-DL-ConfigurationCommon中的pattern2(如果已配置)中的dl-UL-TransmissionPeriodicity指示的周期的值、nrofUplinkSlots指示的时 隙个数、nrofUplinkSymbols指示的符号个数。
可选地,在本发明的实施例一中,所述“UL时隙”(或者称为“准UL时隙”,或者称为“候选UL时隙”,或者称为“准SL时隙”,或者称为“候选SL时隙”)是指满足UL时隙条件的时隙。其中,对于一个给定的时隙l,所述UL时隙条件是指下面的一项或多项(在适用的情况下按“与”或者“或”的方式任意组合):
● 所述时隙l中,符号
Figure PCTCN2021093309-appb-000058
符号
Figure PCTCN2021093309-appb-000059
符号
Figure PCTCN2021093309-appb-000060
配置为上行符号。
● 所述时隙l中,至少符号
Figure PCTCN2021093309-appb-000061
符号
Figure PCTCN2021093309-appb-000062
符号
Figure PCTCN2021093309-appb-000063
配置为上行符号。
● 所述时隙l中,所有符号(例如对于NCP,符号0、符号1、……、符号13;又如对于ECP,符号0、符号1、……、符号11)都配置为上行符号。
这样,根据实施例一所述,本发明提供了一种方法,通过在SL公共控制信息中有效地组合TDD配置的参数的值,实现了高效的TDD配置的指示。
[变形例]
下面,利用图2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2是表示本发明所涉及的用户设备UE的框图。
如图2所示,该用户设备UE20包括处理器201和存储器202。处理器201例如可以包括微处理器、微控制器、嵌入式处理器等。存储器202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202上存储有程序指令。该指令在由处理器201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。上面示出的网络节点和用户设备可以包括更多的模块,例如还可以包括可以开发的或者将来开发的可用于基站、MME、或UE的模块等等。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,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(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,等等)或者变换或者重写;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,上述实施例中的基站和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。
在本申请中,“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控制交换中心,包括资源分配调度、数据接收发送等功能。“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***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基站设备和终端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:
    设置S-SS/PSBCH块中的PSBCH中的消息的12个比特的内容,以及
    传输所述S-SS/PSBCH块,
    其中,
    所述12个比特中的一个比特用于指示TDD配置中使用模式1,或者使用模式1和模式2,并且
    对FDD,或者对只支持PC5接口、且未提供TDD配置的频谱,所述12个比特全部设置为‘1’。
  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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