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WO2025011511A1 - Procédé exécuté par un équipement utilisateur et équipement utilisateur - Google Patents

Procédé exécuté par un équipement utilisateur et équipement utilisateur Download PDF

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Publication number
WO2025011511A1
WO2025011511A1 PCT/CN2024/104189 CN2024104189W WO2025011511A1 WO 2025011511 A1 WO2025011511 A1 WO 2025011511A1 CN 2024104189 W CN2024104189 W CN 2024104189W WO 2025011511 A1 WO2025011511 A1 WO 2025011511A1
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WO
WIPO (PCT)
Prior art keywords
communication
user equipment
sci
sidelink
channel
Prior art date
Application number
PCT/CN2024/104189
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English (en)
Chinese (zh)
Inventor
赵毅男
罗超
刘仁茂
Original Assignee
夏普株式会社
赵毅男
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 夏普株式会社, 赵毅男 filed Critical 夏普株式会社
Publication of WO2025011511A1 publication Critical patent/WO2025011511A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink

Definitions

  • the present invention relates to the field of wireless communication technology, and in particular to a method executed by a user equipment and corresponding user equipment.
  • D2D communication (Device-to-Device communication) refers to the direct communication between two user devices without forwarding through a base station or core network.
  • 3GPP 3rd Generation Partnership Project
  • the high layer supports unicast and multicast communication functions.
  • LTE Release 13 eD2D The main functions introduced by LTE Release 13 eD2D include:
  • V2X Vehicle to Everything
  • the application scenarios of V2X mainly include four aspects:
  • V2V Vehicle to Vehicle, i.e. vehicle-to-vehicle communication
  • V2P Vehicle to Pedestrian, that is, the vehicle sends warnings to pedestrians or non-motor vehicles
  • V2N Vehicle to Network, that is, vehicles connected to mobile networks
  • V2I Vehicle to Infrastructure
  • Vehicle to Infrastructure refers to the communication between vehicles and road infrastructure.
  • V2X stage 1 introduced a new D2D communication interface called the PC5 interface.
  • the PC5 interface is mainly used to solve the communication problems of cellular vehicle networks in high-speed (up to 250 km/h) and high-node density environments. Vehicles can interact with information such as location, speed and direction through the PC5 interface, that is, vehicles can communicate directly through the PC5 interface.
  • the functions introduced by LTE Release 14 V2X mainly include:
  • the second phase of the V2X research project falls within the scope of LTE Release 15 research (see non-patent document 4).
  • the main features introduced include high-order 64QAM modulation, V2X carrier aggregation, short TTI transmission, and the feasibility study of transmit diversity.
  • a resource allocation mode 2 based on user equipment sensing is supported, or transmission mode 2.
  • the physical layer of the user equipment senses the transmission resources in the resource pool, indicating that the user equipment determines whether to exclude resources in the candidate resource set that overlap with the resources indicated by the above indication information based on the indication information in the SCI received from other user equipments.
  • the resources in the candidate resource set that are not excluded are reported to the upper layer, and the upper layer randomly selects resources for PSSCH/PSCCH transmission from the reported resource set.
  • NR SL evo NR sidelink evolution
  • SL-U includes both resource allocation method 1 and resource allocation method 2 for NR sideline communication.
  • the research project specifically includes:
  • SL-U the channel access technology and operation of NR air interface in unlicensed spectrum communication (NR unlicensed, referred to as NR-U) are reused.
  • the channel access technology of NR-U refers to the Listen Before Talk (LBT) technology, which means "listen before talking", which means that the user equipment needs to listen to the channel resources used for transmission before transmission. If the channel is idle, transmission is carried out; otherwise, transmission is abandoned.
  • LBT Listen Before Talk
  • One PSCCH/PSSCH transmission corresponds to N associated candidate PSFCH resources; wherein N is determined by configuration or pre-configuration information, and the value range of N includes ⁇ 1, 2, 3, 4 ⁇ ;
  • the above N associated candidate PSFCH resources are in the same resource block set (RB set) in different time slots.
  • the solution of this patent includes a method in which the physical layer of the sideline communication user equipment reports the sideline communication HARQ feedback information to the upper layer in SL-U, and a method in which the upper layer determines the multicast (groupcast) sideline communication HARQ feedback mechanism.
  • Non-patent literature 1 RP-140518, Work item proposal on LTE Device to Device Proximity Services
  • Non-patent literature 2 RP-142311, Work Item Proposal for Enhanced LTE Device to Device Proximity Services
  • Non-patent literature 3 RP-152293, New WI proposal: Support for V2V services based on LTE sidelink
  • Non-patent document 4 RP-170798, New WID on 3GPP V2X Phase 2
  • Non-patent literature 5 RP-181480, New SID Proposal: Study on NR V2X
  • Non-patent literature 6 RP-220300, WID revision: NR sidelink evolution
  • Non-patent literature 7 RAN1#113 Chairman’s notes, section 9.4.1.2
  • the present invention provides a method performed by a user equipment and the user equipment.
  • a method performed by a user equipment comprising: the user equipment sending sideline communication control information SCI on an unlicensed spectrum; and the user equipment attempting to receive a physical sideline communication feedback channel PSFCH associated with the SCI.
  • the SCI sent by the user equipment may be a multicast communication.
  • the communication type indication field in the SCI is set to a value representing the multicast communication of the hybrid automatic repeat request HARQ feedback mechanism one, or a value representing the multicast communication of the HARQ feedback mechanism two.
  • the communication type indication field in the SCI is set to a value indicating multicast communication of HARQ feedback mechanism one.
  • the candidate PSFCH resources may represent all candidate PSFCH resources on N time slots corresponding to a physical sideline communication control channel PSCCH and/or a physical sideline communication shared channel PSSCH transmission, wherein N is a positive integer.
  • the N may be obtained through configuration or pre-configuration information.
  • the communication type indication field in the SCI may be set to a value indicating multicast communication of HARQ feedback mechanism one.
  • the user equipment may report ACK to a higher layer when determining that PSFCH reception is missing on all the candidate PSFCH resources associated with the SCI.
  • the user equipment may report NACK to a higher layer when determining that PSFCH reception is not missed on all the candidate PSFCH resources.
  • a user equipment comprising: a processor; and a memory storing instructions, wherein the instructions, when executed by the processor, execute any one of the methods described in the first aspect.
  • the solution of the present invention can effectively improve the communication reliability of sidelink communication on unlicensed spectrum.
  • the solution of the present invention ensures that the physical layer reports ACK to the MAC layer when and only when there is no PSFCH reception on the N associated PSFCH resources corresponding to a PSCCH/PSSCH transmission.
  • This solution effectively improves the communication reliability of sidelink communication on unlicensed spectrum; at the same time, the solution of the present invention can be used for the MAC layer to determine the HARQ feedback mechanism of multicast sidelink communication, which can also improve the communication reliability of sidelink communication on unlicensed spectrum.
  • FIG1 is a schematic diagram showing a basic process of a method executed by a user equipment in the first embodiment of the invention.
  • FIG. 2 is a block diagram showing a user equipment according to an embodiment of the present invention.
  • 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.
  • 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.
  • PDCCH Physical Downlink Control Channel, physical downlink control channel
  • DCI Downlink Control Information, downlink control information
  • PDSCH Physical Downlink Shared Channel, physical downlink shared channel
  • eNB evolved NodeB, evolved base station
  • gNB NR base station
  • TTI Transmission Time Interval, transmission time interval
  • OFDM Orthogonal Frequency Division Multiplexing
  • CP-OFDM Cyclic Prefix Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing with cyclic prefix
  • C-RNTI Cell Radio Network Temporary Identifier, cell radio network temporary identifier
  • CSI Channel State Information, channel state information
  • CSI-RS Channel State Information Reference Signal, channel state information reference signal
  • CRS Cell Reference Signal, cell-specific reference signal
  • PUCCH Physical Uplink Control Channel, physical uplink control channel
  • PUSCH Physical Uplink Shared Channel, physical uplink shared channel
  • UL-SCH Uplink Shared Channel, uplink shared channel
  • SCI Sidelink Control Information, sidelink communication control information
  • PSCCH Physical Sidelink Control Channel, physical sidelink communication control channel
  • MCS Modulation and Coding Scheme, modulation and coding scheme
  • CRB Common Resource Block, common resource block
  • PRB Physical Resource Block, physical resource block
  • PSSCH Physical Sidelink Shared Channel, physical sidelink communication shared channel
  • RSRP Reference Signal Receiving Power, reference signal receiving power
  • SRS Sounding Reference Signal, detection reference signal
  • CRC Cyclic Redundancy Check, cyclic redundancy check
  • PSDCH Physical Sidelink Discovery Channel, physical sidelink communication discovery channel
  • PSBCH Physical Sidelink Broadcast Channel, physical sidelink communication broadcast channel
  • TDD Time Division Duplexing
  • FDD Frequency Division Duplexing
  • SIB System Information Block, system information block
  • SIB1 System Information Block Type 1, system information block type 1
  • SLSS Sidelink synchronization Signal, sidelink communication synchronization signal
  • PSSS Primary Sidelink Synchronization Signal, primary synchronization signal for sidelink communication
  • PCI Physical Cell ID, physical cell identifier
  • PSS Primary Synchronization Signal, primary synchronization signal
  • BWP BandWidth Part, bandwidth fragment/part
  • GNSS Global Navigation Satellite System, Global Navigation Satellite System
  • SFN System Frame Number, system (wireless) frame number
  • DFN Direct Frame Number, direct frame number
  • SSB Synchronization Signal Block, synchronization system information block
  • EN-DC EUTRA-NR Dual Connection, LTE-NR dual connection
  • PCell Primary Cell
  • PSFCH Physical Sidelink Feedback Channel, physical sidelink communication feedback channel
  • QPSK Quadrature Phase Shift Keying, orthogonal phase shift keying
  • 16/64/256 QAM 16/64/256 Quadrature Amplitude Modulation, quadrature amplitude modulation
  • AGC Auto Gain Control, automatic gain control
  • TDRA Time Domain Resource Assignment
  • time domain resource allocation indication field
  • ARFCN Absolute Radio Frequency Channel Number, absolute radio frequency channel number
  • SC-FDMA Single Carrier-Frequency Division Multiple Access
  • MAC Medium Access Control, media access control layer
  • PDU Protocol Data Unit, protocol data unit
  • SL-U Sidelink unlicensed, sidelink communication on unlicensed spectrum
  • NR-U NR unlicensed, NR communication on unlicensed spectrum
  • TBS Transport Block Size, transport block size
  • CQI Channel Quality Information, channel quality information
  • V2X and sidelink mentioned in the specification of the present invention have the same meaning.
  • V2X in the text can also represent sidelink; similarly, sidelink in the text can also represent V2X, and no specific distinction or limitation will be made in the following text.
  • the resource allocation method of V2X (sidelink) communication in the specification of the present invention can be equivalently replaced with the transmission mode of V2X (sidelink) communication.
  • the resource allocation method involved in the specification can represent the transmission mode, and the transmission mode involved can represent the resource allocation method.
  • transmission mode 1 represents a transmission mode (resource allocation method) based on base station scheduling
  • transmission mode 2 represents a transmission mode (resource allocation method) based on user equipment sensing and resource selection.
  • the PSCCH in the specification of the present invention is used to carry the SCI.
  • the PSCCH involved in the specification of the present invention corresponds to, or is related to, or is related to, or is scheduled to be a PSSCH.
  • the meanings are the same, that is, associated PSSCH or corresponding PSSCH.
  • the SCI (including first-level SCI and second-level SCI) corresponding to the PSSCH mentioned in the specification has the same meaning, that is, associated SCI or corresponding SCI.
  • the first-level SCI is called 1st stage SCI or SCI format 1-A, which is transmitted in PSCCH;
  • the second-level SCI is called 2nd stage SCI or SCI format 2-A (or, SCI format 2-B), which is transmitted in the corresponding PSSCH resources.
  • the NR sideline communication (SL-U for short) on the unlicensed spectrum in the specification of the present invention may also be referred to as shared spectrum channel access, that is, on the unlicensed spectrum, there may be user devices that access the channel through Wifi technology (wireless LAN technology based on IEEE 802.11 standard), and there may also be NR sideline communication user devices that access the channel through the PC5 interface.
  • Wifi technology wireless LAN technology based on IEEE 802.11 standard
  • NR sideline communication user devices that access the channel through the PC5 interface.
  • the parameter set numerology includes two meanings: subcarrier spacing and cyclic prefix CP length.
  • Table 4.2-1 shows the supported transmission parameter sets, as shown below.
  • each slot contains 14 OFDM symbols; for the Extended CP, each slot contains 12 OFDM symbols.
  • NR and LTE have the same definition of subframe, which means 1ms.
  • subframe means 1ms.
  • the slot number within 1 subframe (1ms) can be expressed as The range is 0 to
  • the slot number within a system frame (frame, duration 10ms) can be expressed as The range is 0 to in, and
  • the definitions of different subcarrier spacings ⁇ are shown in the following table.
  • Table 4.3.2-1 Number of symbols in each slot, number of slots in each system frame, number of slots in each subframe under normal CP
  • Table 4.3.2-2 Number of symbols in each slot, number of slots in each system frame, number of slots in each subframe when using extended CP (60kHz)
  • the system frame (or, simply referred to as frame) number SFN ranges from 0 to 1023.
  • the concept of direct system frame number DFN is introduced in sidelink communication, and the number range is also 0 to 1023.
  • the above description of the relationship between system frames and numerology can also be applied to direct system frames.
  • the duration of a direct system frame is also equal to 10ms.
  • a direct system frame includes 10 time slots, and so on. DFN is applied to timing on the sidelink carrier.
  • Resource blocks RB are defined in the frequency domain as For example, for a subcarrier spacing of 15 kHz, the RB is 180 kHz in the frequency domain. For a subcarrier spacing of 15 kHz ⁇ 2 ⁇ , the resource unit RE represents 1 subcarrier in the frequency domain and 1 OFDM symbol in the time domain.
  • Out-of-Coverage sidelink communication The two The UE has no network coverage (for example, the UE cannot detect any cell that meets the "cell selection criteria" on the frequency required for sidelink communication, indicating that the UE has no network coverage).
  • Both UEs performing sidelink communication have network coverage (for example, the UE detects at least one cell that meets the "cell selection criteria" on the frequency required for sidelink communication, indicating that the UE has network coverage).
  • Partial-Coverage sidelink communication One of the UEs performing sidelink communication has no network coverage, while the other UE has network coverage.
  • the UE From the UE side, the UE has only two scenarios: no network coverage and network coverage. Partial network coverage is described from the perspective of sidelink communication.
  • the resources sent and received by the UE belong to the resource pool.
  • the base station schedules transmission resources for the sidelink UE in the resource pool, or, for a transmission mode based on UE perception in sidelink communication, the UE determines the transmission resources in the resource pool.
  • the frequency domain supports resource allocation based on sub-channels as the minimum granularity, that is, for PSSCH transmission, the resources occupied in the frequency domain are an integer number of sub-channels.
  • a sub-channel can represent several consecutive resource blocks RBs in the frequency domain.
  • the sidelink communication user equipment selects candidate resources within a time window (optionally, resource selection window [n+T1, n+T2]), and determines the candidate resources that overlap with the reserved resources based on the reserved resources indicated by the PSCCH sent by other user equipment in the monitoring time slot, and excludes these overlapping candidate resources.
  • the physical layer reports the set of candidate resources that are not excluded to the MAC layer, and the MAC layer selects transmission resources for the PSSCH/PSCCH.
  • the set of transmission resources selected by the MAC layer is called a selected sidelink grant.
  • the sideline communication resources included in the grant can be used for the initial transmission and all retransmissions of one MAC PDU (corresponding to one transport block TB), or can be used for the initial transmission and all retransmissions of multiple MAC PDUs (corresponding to multiple transport blocks TB).
  • the present invention does not impose any limitation on this.
  • LBT operation For wireless communications on unlicensed spectrum, some countries or regions (for example, Europe) stipulate that user equipment must perform LBT operation before transmitting wireless communications, which is a "listen before talk" mechanism, also known as channel access operation, which refers to a mechanism for determining channel availability by sensing the channel. Specifically, during a period of time before communication transmission, the user equipment will only transmit when it detects that the channel is idle; otherwise, the user equipment will not transmit.
  • LBT operation also known as channel access operation
  • the energy detected by the base station or user equipment on the channel is lower than the energy threshold value X Thresh for a duration equal to or greater than 4 ⁇ s, the base station or user equipment considers that the channel is idle within this time unit (or, referred to as LBT success).
  • the channel (channel) that the base station or user equipment detects energy and uses to determine whether it is idle represents a carrier containing a set of continuous resource blocks RB, or a part of the carrier.
  • the channel can also be referred to as LBT bandwidth (LBT bandwidth), or LBT sub-band (LBT sub-band), or RB set (RB set).
  • LBT bandwidth LBT bandwidth
  • LBT sub-band LBT sub-band
  • RB set RB set
  • An LBT bandwidth or RB set can be equal to 20MHz in the frequency domain, that is, there can be an RB set on a 20MHz carrier.
  • the number of resource blocks RBs corresponding to multiple RB sets and a guard band (GB for short) between two consecutive RB sets included in a carrier (a carrier with a frequency exceeding 20 MHz, such as 40 MHz, 60 MHz, and 80 MHz) may be as shown in the following table:
  • Table 1 Number of RBs in all RB sets and GBs on a carrier at 15kHz and 30kHz subcarrier spacing
  • 105-6-105 indicates that the carrier contains two consecutive RB sets, each containing 105 RBs. Between the two RB sets, there is a guard band GB containing 6 consecutive RBs, which contains a total of 216 consecutive RBs, and so on for other items in Table 1.
  • the LBT operations performed by the (sideline communication) user equipment on different RB sets may be independent of each other (i.e., the two are unrelated). For example, the user equipment detects that the channel is idle on RB set 1, and the channel is occupied (or busy) on RB set 2. If the resources selected by the sideline communication user equipment for transmitting PSSCH/PSCCH include (all or part of) RBs corresponding to RB set 1 and RB set 2, the user equipment may send the corresponding PSSCH/PSCCH if and only if the user equipment detects that the channel is idle on both RB set 1 and RB set 2.
  • one PSCCH/PSSCH transmission can correspond to N associated candidate PSFCH resources, that is, when the LBT of one candidate PSFCH resource is unsuccessful, the LBT of one or more other candidate PSFCH resources may be successful, and PSFCH transmission can be performed.
  • N is determined by configuration or pre-configuration information, and the value range is ⁇ 1, 2, 3, 4 ⁇ .
  • the N associated candidate PSFCH resources corresponding to one PSCCH/PSSCH transmission are in the same RB set in different time slots.
  • HARQ feedback mechanism 1 For multicast sideline communications, two different HARQ feedback mechanisms are supported, namely HARQ feedback mechanism 1 and HARQ feedback mechanism 2.
  • HARQ feedback mechanism 2 means that when the user equipment receiving PSCCH/PSSCH fails to decode successfully, it sends NACK on the associated PSFCH resource. When it decodes successfully, it sends ACK on the associated PSFCH resource.
  • HARQ feedback mechanism 1 all group member user equipments in the multicast communication can share the same associated PSFCH resource.
  • HARQ feedback mechanism 2 the associated PSFCH resources corresponding to all group member user equipments in the multicast communication can be different.
  • the communication type indication field may include two bits, namely, the values are ‘00’, ‘01’, ‘10’, and ‘11’.
  • the indication information corresponding to each value is shown in Table 2.
  • FIG1 is a schematic diagram showing a basic process of a method executed by a user equipment according to a first embodiment of the present invention.
  • the steps performed by the user equipment include:
  • step S101 a sideline communication user equipment sends sideline communication control information SCI on an unlicensed spectrum (or on a shared spectrum).
  • the sent SCI is a multicast communication, that is, the number of user equipments receiving the SCI is greater than 1, or equal to 1.
  • the communication type indicator field (cast type indicator field) in the SCI is set to ‘01’, or, ‘11’, indicating multicast communication of HARQ feedback mechanism two, or, multicast communication of HARQ feedback mechanism one.
  • the communication type indicator field in the SCI is set to ‘11’, indicating multicast communication of the HARQ feedback mechanism one.
  • the candidate PSFCH resources represent (all) candidate PSFCH resources in N time slots corresponding to one PSCCH/PSSCH transmission, where N is a positive integer obtained through configuration or pre-configuration information.
  • the value of the communication type indication field in the SCI is ‘11’, which indicates multicast communication of HARQ feedback mechanism one.
  • step S102 the user equipment attempts to receive (attempt to) the PSFCH associated with (or corresponding to) the SCI.
  • the user equipment determines that PSFCH reception is absent (absence of PSFCH reception) on (all) the N candidate PSFCH resources (occasion) associated with (or corresponding to) the SCI, then the user equipment reports an ACK to the upper layer (MAC layer); optionally, otherwise, a NACK is reported to the upper layer.
  • MAC layer the upper layer
  • the communication reliability of sideline communication on unlicensed spectrum can be effectively improved.
  • the scheme of the present invention ensures that the physical layer reports ACK to the MAC layer when and only when there is no PSFCH reception on the N associated PSFCH resources corresponding to a PSCCH/PSSCH transmission. This scheme effectively improves the communication reliability of sideline communication on unlicensed spectrum.
  • the solution of the present invention can be used for the MAC layer to determine the HARQ feedback mechanism of the multicast sideline communication, and can also improve the communication reliability of the sideline communication on the unlicensed spectrum.
  • FIG2 is a block diagram of a user equipment UE involved in the present invention.
  • the user equipment UE80 includes a processor 801 and a memory 802.
  • the processor 801 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc.
  • the memory 802 may include, for example, a volatile memory.
  • the memory 802 may be a memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory.
  • the memory 802 stores program instructions. When the instructions are executed by the processor 801, the above method performed by the user equipment described in detail in the present invention can be executed.
  • the method of the present invention and the related equipment have been described above in conjunction with the preferred embodiments. Those skilled in the art will appreciate that the method shown above is only exemplary, and the embodiments described above can be combined with each other without contradiction.
  • the method of the present invention is not limited to the steps and sequence shown above.
  • the network node 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 only exemplary and not restrictive, and the present invention is not limited to the 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.
  • the above embodiments of the present invention can be implemented by software, hardware, or a combination of software and hardware.
  • the various components inside the 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.
  • DSP digital signal processing
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • CPLDs programmable logic devices
  • base station may refer to a mobile communication data and control exchange center with a large transmission power and a wide coverage area, including functions such as resource allocation scheduling, data reception and transmission, etc.
  • User equipment may refer to a user mobile terminal, such as a mobile phone, a notebook, etc., which can communicate wirelessly with a base station or a micro base station.
  • the embodiments of the present invention disclosed herein can be implemented on a computer program product.
  • the computer program product is a product as follows: it has 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.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present invention.
  • This configuration of the present invention is typically provided as a soft disk set or encoded on a computer-readable medium such as an optical medium (such as a CD-ROM), a floppy disk, or a hard disk.
  • the software or firmware or such 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 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.
  • the present invention may also use the integrated circuit obtained by using the advanced technology.

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Abstract

La présente invention concerne un procédé exécuté par un équipement utilisateur et un équipement utilisateur. Le procédé comprend les étapes suivantes : sur un spectre sans licence, l'équipement utilisateur envoie des informations de commande de liaison latérale (SCI) ; et l'équipement utilisateur tente de recevoir un canal de rétroaction de liaison latérale physique (PSFCH) associé aux SCI. Par conséquent, la fiabilité de communication de communication de liaison latérale sur des spectres sans licence peut être efficacement améliorée.
PCT/CN2024/104189 2023-07-13 2024-07-08 Procédé exécuté par un équipement utilisateur et équipement utilisateur WO2025011511A1 (fr)

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CN202310860674.8 2023-07-13
CN202310860674.8A CN119316956A (zh) 2023-07-13 2023-07-13 由用户设备执行的方法以及用户设备

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WO2025011511A1 true WO2025011511A1 (fr) 2025-01-16

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CN110944403A (zh) * 2018-09-21 2020-03-31 株式会社Kt 用于传送侧链路harq反馈信息的方法和设备
CN113518313A (zh) * 2020-04-09 2021-10-19 华为技术有限公司 一种侧行链路组播通信的方法及通信装置
CN114946146A (zh) * 2019-10-30 2022-08-26 Oppo广东移动通信有限公司 用于混合自动重传请求上报的用户设备和方法

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CN110944403A (zh) * 2018-09-21 2020-03-31 株式会社Kt 用于传送侧链路harq反馈信息的方法和设备
CN114946146A (zh) * 2019-10-30 2022-08-26 Oppo广东移动通信有限公司 用于混合自动重传请求上报的用户设备和方法
CN113518313A (zh) * 2020-04-09 2021-10-19 华为技术有限公司 一种侧行链路组播通信的方法及通信装置

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