WO2020125558A1 - 反馈控制信道的配置方法及设备 - Google Patents

反馈控制信道的配置方法及设备 Download PDF

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Publication number
WO2020125558A1
WO2020125558A1 PCT/CN2019/125387 CN2019125387W WO2020125558A1 WO 2020125558 A1 WO2020125558 A1 WO 2020125558A1 CN 2019125387 W CN2019125387 W CN 2019125387W WO 2020125558 A1 WO2020125558 A1 WO 2020125558A1
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WO
WIPO (PCT)
Prior art keywords
psfch
information
user equipment
feedback control
candidate time
Prior art date
Application number
PCT/CN2019/125387
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English (en)
French (fr)
Inventor
杨帆
王俊伟
张兴炜
Original Assignee
华为技术有限公司
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19898683.8A priority Critical patent/EP3879915A4/en
Publication of WO2020125558A1 publication Critical patent/WO2020125558A1/zh
Priority to US17/351,518 priority patent/US11991669B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H04L1/0004—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes applied to control information
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • 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
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

Definitions

  • This application relates to the field of wireless communication, and in particular to a method and device for configuring a feedback control channel.
  • the base station sends downlink data to the UE on the downlink, and the UE feeds back HARQ-ACK information on the uplink accordingly.
  • the base station can also send a downlink reference signal on the downlink, and the UE can The downlink reference signal is measured and feeds back corresponding channel state information (Channel State Information, CSI), such as periodic/semi-static CSI.
  • CSI Channel State Information
  • HARQ information and periodic/semi-static CSI information are all carried in the uplink control channel and belong to the uplink control information.
  • HARQ-ACK information and periodic/semi-static CSI information are feedback of downlink data and information, and are a type of feedback control information.
  • the data or information may be one UE (ie, sending UE), and sent to another UE or a group of UEs (ie, receiving UE), and the receiving UE needs feedback The corresponding information is sent to the sending UE.
  • the 5G new air interface system there is currently no method for feeding back control information on the side link.
  • Embodiments of the present application provide a feedback control channel configuration method and device, which can configure candidate time-frequency resources for a physical side link feedback control channel PSFCH carrying feedback control information, and thus can implement feedback control information required on the PSFCH.
  • an embodiment of the present application provides a method for configuring a feedback control channel.
  • the method includes: the first user equipment determines configuration information of a physical side link feedback control channel PSFCH, and the configuration information of the PSFCH is used to indicate or configure an
  • the candidate time-frequency resources of the PSFCH are described.
  • the candidate time-frequency resources of the PSFCH are used to carry feedback control information of the first information; the first user equipment sends the configuration information of the PSFCH to the second user equipment.
  • the first information may include data information sent by the first user equipment to the second user equipment, and corresponding feedback control information may include hybrid automatic retransmission confirmation information of the data sent by the second user equipment to the first user equipment HARQ- ACK or hybrid automatic retransmission denial information HARQ-NACK; the first information may also include reference information sent by the first user equipment to the second user equipment, the reference information is used to instruct the second user equipment to measure the channel state, corresponding to
  • the feedback control information may include channel state measurement information corresponding to the reference information. Based on this solution, the first user equipment may indicate or configure candidate time-frequency resources for the PSFCH carrying feedback control information, so as to implement the feedback control information required for feedback on the PSFCH.
  • the PSFCH configuration information includes one or more of the following information: PSFCH format information, PSFCH orthogonal frequency division multiplexing OFDM symbol number information, PSFCH resource pool Identification information, the number of bits of feedback control information, the number of codebooks of feedback control information, the codebook count of feedback control information, the time-frequency resource candidate information of PSFCH and the number of repetition information of configuration information.
  • the first user equipment can use the format information of the PSFCH, the information of the number of OFDM symbols of the PSFCH, the identification information of the PSFCH resource pool, the number of bits of the feedback control information, the number of codebooks of the feedback control information, and the codebook of the feedback control information
  • One or more pieces of information in the count, the candidate time-frequency resource information of the PSFCH and the repetition number information of the configuration information are used to indicate or configure the candidate time-frequency resources of the PSFCH, so as to realize the feedback control information required for feedback on the PSFCH.
  • the format information of the PSFCH and the modulation and coding strategy MCS of the first information, the subcarrier spacing SCS, or the number of OFDM symbols of the PSFCH are Correspondence.
  • the second user equipment may configure the format of the PSFCH through the MCS, SCS of the first information, or the number of OFDM symbols of the PSFCH, so as to implement feedback control information required for feedback on the PSFCH.
  • the information about the number of OFDM symbols of the PSFCH has a corresponding relationship with the MCS, SCS, or format information of the PSFCH of the first information.
  • the second user equipment may configure the number of OFDM symbols of the PSFCH through the MCS, SCS of the first information, or the format of the PSFCH, so as to implement feedback control information required for feedback on the PSFCH.
  • the number of second user equipments is N, and N is a positive integer greater than or equal to 1, and the configuration information of the PSFCH further includes candidate time-frequency resources Offset, the candidate time-frequency resource offset is used to configure candidate time-frequency resources of PSFCH of N second user equipments.
  • the first user equipment may configure different candidate time-frequency resources for the N second user equipments through the candidate time-frequency resource offset, so as to implement feedback control information required for feedback on the PSFCH.
  • the first user equipment sends the configuration information of the PSFCH through a physical side link control channel PSCCH or a physical side link shared channel PSSCH. Based on this solution, the first user equipment may send the configuration information of the PSFCH through the PSCCH or PSSCH, so as to implement the feedback control information required for feedback on the PSFCH.
  • the first user equipment receives feedback sent by the second user equipment on the candidate time-frequency resource indicated or configured by the PSFCH configuration information Control information. Based on this solution, the first user equipment may receive the feedback control information sent by the second user equipment on the PSFCH configuration information indication or the configured candidate time-frequency resource, so as to implement the feedback control information required for feedback on the PSFCH.
  • an embodiment of the present application provides a method for configuring a feedback control channel.
  • the method includes: a second user equipment receives PSFCH configuration information from a first user equipment, and the PSFCH configuration information is used to indicate or configure the PSFCH
  • Candidate time-frequency resources, the candidate time-frequency resources of the PSFCH are used to carry the feedback control information of the first information; the second user equipment determines the resource pool of the PSFCH according to the configuration information of the PSFCH; the second user equipment according to the PSFCH
  • the configuration information determines candidate time-frequency resources in the resource pool.
  • the second user equipment may determine the candidate time-frequency resource of the PSFCH according to the configuration information of the PSFCH, so as to implement feedback control information required for feedback on the PSFCH.
  • the PSFCH configuration information includes one or more of the following information: PSFCH format information, PSFCH OFDM symbol number information, PSFCH resource pool identification information, feedback control information The number of bits, the number of codebooks of the feedback control information, the codebook count of the feedback control information, the time-frequency resource candidate information of the PSFCH and the number of repetitions of the configuration information.
  • the second user equipment may indicate or configure the format information of the PSFCH, the number of OFDM symbols of the PSFCH, the identification information of the PSFCH resource pool, the number of bits of the feedback control information, and the code of the feedback control information through the first user equipment One or more of the number, the codebook count of the feedback control information, the PSFCH candidate time-frequency resource information and the repetition count information of the configuration information, to determine the PSFCH candidate time-frequency resource to achieve the feedback required on the PSFCH Feedback control information.
  • the second user equipment determines the PSFCH format according to the number of MCS, SCS, or PSFCH OFDM symbols of the first information. Based on this solution, the second user equipment may determine the format of the PSFCH by the number of OFDM symbols of MCS, SCS, or PSFCH of the first information, so as to implement feedback control information required for feedback on the PSFCH.
  • the second user equipment determines the number of OFDM symbols of the PSFCH according to the format of the MCS, SCS, or PSFCH of the first information. Based on this solution, the second user equipment may determine the number of OFDM symbols of the PSFCH in the format of MCS, SCS, or PSFCH of the first information, so as to implement feedback control information required for feedback on the PSFCH.
  • the number of second user equipments is N, and N is a positive integer greater than or equal to 1, and the configuration information of the PSFCH further includes candidate time-frequency Resource offset, the candidate time-frequency resource offset is used to configure the PSFCH candidate time-frequency resource.
  • the second user equipment may determine different candidate time-frequency resources for the N second user equipment through the candidate time-frequency resource offsets, so as to implement feedback control information required for feedback on the PSFCH.
  • the second user equipment sends feedback control to the first user equipment on the PSFCH configuration information indication or the configured candidate time-frequency resource information. Based on this solution, the second user equipment may send feedback control information to the first user equipment on the PSFCH configuration information indication or the configured candidate time-frequency resources, so as to implement feedback control information required for feedback on the PSFCH.
  • the second user equipment performs detection on the channel where the candidate time-frequency resource indicated or configured by the PSFCH configuration information is located, if the first candidate When the channel where the frequency resource is located is idle, the second user equipment sends feedback control information to the first user equipment on the first candidate time-frequency resource.
  • the second user equipment may send feedback control information to the first user equipment when it detects that the channel where the first candidate time-frequency resource is located is idle, so as to implement feedback control information required for feedback on the PSFCH.
  • an embodiment of the present application provides a user equipment, the user equipment having a method and function for implementing the foregoing first aspect.
  • This function can be realized by hardware, and can also be realized by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • an embodiment of the present application provides a user equipment, the user equipment having a method and function for implementing the foregoing second aspect.
  • This function can be realized by hardware, and can also be realized by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • an embodiment of the present application further provides a user equipment, including: at least one processor, at least one memory, and a communication interface, where the communication interface, the at least one memory, and the at least one processor are coupled;
  • the communication interface communicates with other devices, and the at least one memory is used to store a computer program, so that when the computer program is executed by the at least one processor, the first aspect and its various possible implementations or the second aspect and its various aspects are realized.
  • embodiments of the present application also provide a computer-readable storage medium, such as a non-transitory computer-readable storage medium.
  • a computer program is stored thereon, and when the computer program is run on the computer, the computer is caused to execute any one of the above-mentioned possible methods of the first aspect or any one of the second aspect of the second aspect.
  • the computer may be at least one storage node.
  • an embodiment of the present application further provides a computer program product, which when executed on a computer, causes any method provided in the first aspect or any method provided in the second aspect to be executed.
  • the computer may be at least one storage node.
  • an embodiment of the present application provides a communication system.
  • the communication system may include any one or more of the following: the user equipment in the third aspect, or the user equipment in the fourth aspect, or the fifth The user equipment in the aspect, or the computer-readable storage medium as in the sixth aspect, or the computer program product as in the seventh aspect.
  • any of the user equipment, the computer-readable storage medium, or the computer program product provided above are used to perform the corresponding method provided above. Therefore, for the beneficial effects that can be achieved, refer to the corresponding method The beneficial effects in will not be repeated here.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of this application.
  • FIG. 3 is a schematic diagram of the relationship between PSCCH and PSSCH provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for configuring a feedback control channel provided by an embodiment of this application;
  • FIG. 5 is a distribution diagram of a PSFCH resource pool provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of PSFCH candidate time domain resources provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of PSFCH candidate frequency domain resources provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of resource configuration of N second user equipments provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram 1 of user equipment according to an embodiment of the present application.
  • FIG. 10 is a second schematic structural diagram of user equipment according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram 3 of user equipment according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram 4 of user equipment according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of the composition of a communication system provided by an embodiment of the present application.
  • At least one of the following or a similar expression refers to any combination of these items, including any combination of a single item or a plurality of items.
  • at least one item (a) in a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be a single or multiple .
  • the words “first” and “second” are used to distinguish the same or similar items whose functions and functions are basically the same. Those skilled in the art may understand that the words “first” and “second” do not limit the number and execution order, and the words “first” and “second” do not necessarily mean different.
  • the network architecture and business scenarios described in the embodiments of the present application are intended to more clearly explain the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.
  • FIG. 1 it is a schematic structural diagram of a communication system 10 provided by an embodiment of the present application.
  • the communication system 10 includes a first user equipment 101 and a second user equipment 102.
  • the first user equipment 101 or the second user equipment 102 provided in the embodiments of the present application may be a portable computer (such as a mobile phone), a notebook computer, a personal computer (personal computer (PC)), and a wearable electronic device (such as a smart watch ), tablet PC, augmented reality (augmented reality (AR) ⁇ virtual reality (VR) equipment, vehicles, vehicle modules, vehicle computers, vehicle chips, vehicle communication systems, wireless terminals in industrial control, etc., implemented as follows
  • the specific forms of the first user equipment 101 and the second user equipment 102 are not particularly limited.
  • the communication system 10 may include multiple second user equipments, such as the second user equipment 102 and the second user equipment 103 in FIG. 1.
  • the first user equipment 101 or the second user equipment 102 in FIG. 1 may be implemented by one device, or may be implemented by multiple devices together, or may be a functional module in one device.
  • the application examples do not specifically limit this. It can be understood that the above function may be a network element in a hardware device, or a software function running on dedicated hardware, or a virtualized function instantiated on a platform (for example, a cloud platform).
  • FIG. 2 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application.
  • the communication device 200 includes a processor 201, a communication line 202, a memory 203, and at least one communication interface 204 (only an example in FIG. 2 is illustrated by including the communication interface 204).
  • the processor 201 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more used to control the execution of the program program of the present application integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 202 may include a path for transferring information between the above components.
  • Communication interface 204 using any device such as a transceiver, for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area network (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area network
  • the memory 203 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), or other types that can store information and instructions
  • the dynamic storage device can also be an electrically erasable programmable read-only memory (electrically erasable programmable-read-only memory (EEPROM), a read-only compact disc (compact disc read-only memory, CD-ROM) or other optical disc storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used to carry or store the desired program code in the form of instructions or data structures and can be used by a computer Access to any other media, but not limited to this.
  • the memory may exist independently and be connected to the processor through the communication line 202. The memory can also be integrated with the processor.
  • the memory 203 is used to store computer execution instructions for executing the solution of the present application, and the processor 201 controls the execution.
  • the processor 201 is used to execute computer-executed instructions stored in the memory 203, thereby implementing the feedback control channel configuration method provided in the following embodiments of the present application.
  • the computer execution instructions in the embodiments of the present application may also be called application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2.
  • the communication device 200 may include multiple processors, such as the processor 201 and the processor 205 in FIG. 2. Each of these processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the above communication device 200 may be a general device or a dedicated device.
  • the communication device 200 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a similar structure as shown in FIG. 2 equipment.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of the communication device 200.
  • the first user equipment 101 sends first information to the second user equipment 102, and the second user equipment 102 sends feedback control information of the first information to the first user equipment 101 as an example for description.
  • the second user equipment 102 may also send the second information to the first user equipment 101, and the first user equipment 101 may also send the feedback control information of the second information to the second user equipment.
  • the first information and the second information may include data information of the side link, and may also include reference information, such as a Zadoff-Chu sequence and a computer generated sequence (Computer generated sequence).
  • Those skilled in the art should understand that the first user equipment 101 and the second user equipment 102 in this embodiment of the present application may be either user equipment that sends data information or user equipment that sends feedback control information of the data information.
  • the second user equipment 102 may have multiple methods for sending feedback control information.
  • the second user equipment 102 may send the first information Feedback control information is carried on the physical side link control channel PSCCH or the physical side link shared channel PSSCH of the second user equipment 102.
  • the relationship between the PSSCH and the PSCCH may be as shown in FIG. 3, for time slot n
  • the PSCCH includes relevant information indicating the PSSCH, which is used to carry data.
  • the second user equipment 102 may carry the feedback control information of the first information on the physical side link feedback control channel PSFCH of the second user equipment 102 and send it.
  • the first user equipment 101 and the second user equipment 102 may periodically send information.
  • the second user equipment 102 sends the second information to the first user equipment 101
  • the first information The feedback control information is carried on the PSCCH or PSSCH of the second user equipment 102 and sent.
  • This method of side-link feedback control information if the feedback control information of the first information is large, the resources of the control information or data information will be excessively occupied, which will increase the coding rate and reduce the demodulation performance; Multiplexing the feedback control information of one message on the PSCCH or PSSCH will bring additional delay.
  • the first user equipment 101 may send data or information to N (N is a positive integer greater than 1) second user equipments, and the N second user equipments may feed back hybrid automatic retransmission confirmation information HARQ-ACK Or hybrid automatic retransmission denial information HARQ-NACK and/or channel state information CSI, but N second user equipments may not necessarily have periodic data sent to the first user equipment 101.
  • the second user equipment 102 may also send the feedback control information of the first information on the PSFCH of the second user equipment 102.
  • the PSFCH is a feedback control channel independently carrying feedback control information. Other non-feedback control information and data are generally not allowed. Use the frequency or time domain resources where the PSFCH is located.
  • the following embodiment provided by the present application describes the specific process of carrying the feedback control information of the first information on the PSFCH of the second user equipment 102 and sending it.
  • the method for configuring a feedback control channel includes the following steps:
  • Step 401 The first user equipment 101 determines PSFCH configuration information.
  • the configuration information of the PSFCH is used to indicate or configure candidate time-frequency resources of the PSFCH, and the candidate time-frequency resources of the PSFCH are used to carry feedback control information of the first information.
  • the PSFCH configuration information includes one or more of the following information: PSFCH format information, PSFCH orthogonal frequency division multiplexing OFDM symbol number information, PSFCH resource pool identification information, feedback control information bit number , The number of codebooks of the feedback control information, the codebook count of the feedback control information, the candidate time-frequency resource information of the PSFCH, and the number of repetition times of the configuration information.
  • the format information of the PSFCH includes the first format and/or the second format.
  • the first format may be a format with a fixed number of symbols.
  • the first format may occupy a time slot (14 symbols).
  • the position of the DMRS symbol of the demodulation reference signal in the first format is fixed.
  • the DMRS symbols in the first format may be symbols 2, 5, 8 and symbol 10.
  • the second format may be a format with a variable number of symbols, and the change range may be N 1 -N 2 , N 1 and N 2 are positive integers, and 0 ⁇ N 1 ⁇ N 2 ⁇ 14.
  • the position of the DMRS symbol in the second format may be pre-defined.
  • symbol 2 may be predefined as DMRS Symbol
  • symbol 3 can be predefined as DMRS symbol
  • symbol 1 and symbol 4 can be predefined as DMRS symbol.
  • the format of the PSFCH can be indicated by 1 bit. If the PSFCH format information is indicated as 0 in the PSFCH configuration information, it can indicate that the PSFCH format is the first format; if the PSFCH configuration information is set in the PSFCH configuration information The information indication is 1, which may indicate that the format of the PSFCH is the second format.
  • the format information of the PSFCH may also have other indication methods, and the embodiment of the present application does not specifically limit it.
  • the information of the number of OFDM symbols of PSFCH is used to indicate the number of OFDM symbols of PSFCH.
  • the first user equipment 101 and the second user equipment 102 are pre-configured with one or more sets of the number of PSFCHOFDM symbols, for example, ⁇ 1, 2 ⁇ , ⁇ 4, 7, 14 ⁇ .
  • the first user equipment 101 and the second user equipment 102 use the set ⁇ 1, 2 ⁇ as the set of the number of OFDM symbols of the target PSFCH, if the information of the number of OFDM symbols of the PSFCH is indicated as 0 in the configuration information of the PSFCH, it can be expressed The number of OFDM symbols of the PSFCH is 1; if the information of the number of OFDM symbols of the PSFCH is indicated as 1 in the configuration information of the PSFCH, it can indicate that the number of OFDM symbols of the PSFCH is 2.
  • the set of OFDM symbols of the target PSFCH can be configured by high-level signaling. Those skilled in the art should understand that the information on the number of OFDM symbols of the PSFCH may also have other indication methods, which are not specifically limited in the embodiments of the present application.
  • the identification information of the PSFCH resource pool is used to indicate the identification of the PSFCH resource pool.
  • the PSFCH resource pool may be located at both ends of the entire bandwidth or the entire bandwidth (BWP). As shown in FIG. 5, the PSFCH resource pool may be the bandwidth/partial bandwidth shown in FIG. 5, or the PSFCH resource pool It may be the resource pool 501 and the resource pool 502 shown in FIG. 5.
  • the PSFCH resource pool is unique to the PSFCH. The PSFCH resource pool can only be used if other non-feedback control information or data information meets at least one of the following conditions.
  • the third information may include data information, reference information, or sequence information.
  • the second user equipment 102 successfully feeds back control information on the first Q candidate time-frequency resources that feed back control information for P consecutive times, where P and Q are positive integers, 1 ⁇ P ⁇ 10, and 1 ⁇ Q ⁇ 10.
  • the number of OFDM symbols occupied by the data or information sent by the second user equipment 102 is less than or equal to the number of OFDM symbols of the PSFCH configured by the first user equipment 101 for the second user equipment 102.
  • the number of codebooks of the feedback control information may indicate the number of HARQ-ACK or HARQ-NACK codebooks (codebooks) that the second user equipment needs to feed back to the first user equipment.
  • the codebook count of the feedback information can be used to count the first The number of first information sent by the user equipment, for example, each time the first information is sent, the codebook count of the feedback information is increased by 1.
  • the PSFCH candidate time-frequency resource information includes PSFCH candidate time-domain resource information and PSFCH candidate frequency-domain resource information.
  • the configuration information of the PSFCH may configure the PSFCH candidate time-domain resources by indicating a time window length, a start position of the time window, and a PSFCH start position bitmap within the time window.
  • the time window may start at the Lth time slot after the second user equipment 102 receives the time slot where the first information sent by the first user equipment 101 is completed, the time window length is consecutive M time slots, and L is a positive integer greater than or equal to zero , M is a positive integer greater than or equal to 1.
  • the starting point of the time window can be located at the boundary of the time slot or at a certain symbol of the time slot.
  • the first user equipment 101 can indicate the position of the starting point of the PSFCH in the time window by means of a bitmap, as shown in FIG.
  • the time window length M is 2 time slots, and the time window includes 4 starting points.
  • the starting point and the fourth starting point can be used for PSFCH access.
  • the configuration information of the PSFCH can also configure the candidate time-domain resources of the PSFCH by indicating the length of the time window and the starting position of the time window.
  • the configuration information of the PSFCH may indicate that a certain time slot in 0-L is the starting position of the time window, where L is a positive integer not exceeding 16. For example: if the time window length M is 2 time slots, and the start position of the time window is 5, it may represent the fifth time slot after the second user equipment 102 receives the first information time slot sent by the first user equipment 101 The starting point in the sixth time slot can be used for PSFCH access.
  • the configuration information of the PSFCH may configure candidate frequency domain resources of the PSFCH by indicating the offset of the starting resource block RB, the number of RBs, and the number of frequency domain candidate resources.
  • the offset of the starting RB is used to indicate the RB index of the frequency domain candidate resource relative to the resource pool boundary in the configured resource pool.
  • the resource pool where the PSFCH is located is located in the bandwidth RB 10 to 15, the starting RB offset of the PSFCH is 2, the number of RBs is 1, and the number of frequency domain candidate resources is 3, then the PSFCH
  • the candidate frequency domain resource is RB 12-14.
  • the configuration information repetition number information is used to indicate the number of times the configuration information of the PSFCH can be used repeatedly. If the first user equipment 101 periodically sends data or information to the second user equipment 102, or the first user equipment 101 wants to adopt the same PSFCH configuration information, then the first user equipment 101 may configure the repetition number T 1 of the configuration information To determine that the current PSFCH configuration information can be reused.
  • the first user equipment 101 sends data or information to the second user equipment in a period t, and the first user equipment 101 may be carried in sidelink control information (SCI) when sending data or information for the first time PSFCH configuration information
  • the PSFCH configuration information includes the number of repetitions of the configuration information T 1 , then in the next T 1 -1 data or information, the PSFCH configuration information does not need to be sent
  • the second user equipment 102 can also be based on
  • the PSFCH configuration information sent for the first time indicates or configures PSFCH candidate time-frequency resources to achieve the purpose of saving signaling overhead.
  • the repetition count information of the configuration information may be indicated by 2 bits or more.
  • the repetition count information of the configuration information is configured as 00, indicating that feedback control information of the first information does not need to be sent repeatedly.
  • the information on the number of repetitions of the configuration information may also be configured as infinity. If the configuration is configured as infinity, the first user equipment may also send configuration release information to the second user equipment to release the PSFCH configuration information.
  • the second user equipment regardless of whether the configuration of the number of repetitions is a specific value or infinity, if the second user equipment receives the new PSFCH configuration information sent by the first user equipment, the second user equipment will update the previous PSFCH configuration information and use the new PSFCH configuration information.
  • Step 402 The first user equipment 101 sends the PSFCH configuration information to the second user equipment 102.
  • the first user equipment 101 may send the PSFCH configuration information to the second user equipment 102 through the PSCCH or PSSCH.
  • Step 403 The second user equipment 102 determines the PSFCH resource pool according to the PSFCH configuration information.
  • the second user equipment 102 may determine the PSFCH resource pool according to the PSFCH resource pool identification information in the PSFCH configuration information.
  • the identification information of the PSFCH resource pool may include the identification of at least one PSFCH resource pool.
  • Step 404 The second user equipment 102 determines candidate time-frequency resources in the resource pool according to the configuration information of the PSFCH.
  • the second user equipment 102 may determine the candidate time-frequency resources in the resource pool according to the PSFCH candidate time-frequency resource information in the PSFCH configuration information.
  • the PSFCH candidate time-frequency resource information includes PSFCH candidate time-domain resource information and PSFCH candidate frequency-domain resource information.
  • the second user equipment 102 may determine the candidate time domain resource of the PSFCH according to the time window length, the start position of the time window, and the start position bitmap within the time window.
  • the second user equipment 102 may also determine the candidate time domain resource of the PSFCH according to the time window length and the start position of the time window.
  • the second user equipment 102 may also configure PSFCH candidate time-domain resources according to the time window length and the starting position bitmap within the time window.
  • the second user equipment 102 may configure the candidate frequency domain resources of the PSFCH according to the offset of the starting RB, the number of RBs, and the number of frequency domain candidate time-frequency resources.
  • Step 405 The second user equipment 102 sends feedback control information to the first user equipment 101 on the PSFCH configuration information indication or the configured candidate time-frequency resource.
  • the second user equipment 102 performs detection on the channel where the candidate time-frequency resource indicated or configured by the PSFCH configuration information is located, and if the channel where the first candidate time-frequency resource is located is idle, the second user equipment 102 is in the first Feedback control information is sent to the first user equipment 101 on the candidate time-frequency resource.
  • the channel where the candidate time-frequency resource is located is a part of the BWP
  • the first candidate time-frequency resource may be the candidate time-frequency resource with the starting position first.
  • the detection method may be LBT (listen before talk), free channel assessment CCA (clean channel access) or other detection methods.
  • the configuration information of the PSCCH of the first user equipment 101 or the PSFCH in the PSSCH does not include the format information of the PSFCH, or the first user equipment 101 does not send the configuration information of the PSFCH to the second user equipment 102, the second user equipment 102
  • the format of the PSFCH may be determined according to the number of OFDM symbols of MCS, SCS, or PSFCH of the first information.
  • the MCS and SCS of the first information may be configured by the base station to the first user equipment 101 and the second user equipment 102, or may be configured by the first user equipment 101 according to the current state of the channel, Then send to the second user equipment 102 through SCI.
  • the first user equipment 101 and the second user equipment 102 may pre-store a correspondence between the format of the MCS or SCS and the PSFCH, and the second user equipment 102 may determine the format of the PSFCH according to the correspondence.
  • the PSFCH may use the second Format
  • the first user equipment 101 configures the first information with a higher modulation order (for example: 64QAM, 256QAM, etc.) or uses a higher code rate (for example: 3/4)
  • the PSFCH may use the second Format
  • the first user equipment 101 configures the first information with a lower modulation order (for example: BPSK, QPSK, etc.) or adopts a lower code rate (for example: 1/4)
  • the PSFCH may use the first format.
  • the PSFCH may use the first format, if the SCS configured by the first user equipment 101 for the first information Less than or equal to the third preset threshold (for example: 30KHz), then the PSFCH may use the second format.
  • a third preset threshold for example: 30KHz
  • the second user equipment 102 may also determine the format of the PSFCH according to the number of OFDM symbols of the PSFCH in the configuration information of SCI or PSFCH. For example, if the number of OFDM symbols of PSFCH is 2, then PSFCH can use the second format, and if the number of OFDM symbols of PSFCH is 14, then PSFCH can use the first format.
  • the second user The device 102 may determine the number of OFDM symbols of the PSFCH according to the format of the MCS, SCS, or PSFCH of the first information.
  • the MCS and SCS of the first information may be configured by the base station to the first user equipment 101 and the second user equipment 102, or may be configured by the first user equipment 101 according to the current state of the channel, Then send to the second user equipment 102 through SCI.
  • the first user equipment 101 and the second user equipment 102 may pre-store a correspondence between MCS or SCS and the number of OFDM symbols of PSFCH, and the second user equipment 102 may determine the number of OFDM symbols of PSFCH according to the correspondence.
  • the PSFCH may use less Symbols (for example: 2 symbols), if the first user equipment 101 configures the first information with a lower modulation order (for example: BPSK, QPSK, etc.) or uses a lower code rate (for example: 1/2), Then PSFCH can use more symbols (for example: 14 symbols).
  • the PSFCH may use more symbols (for example: 14 symbols), if the first user equipment 101 The SCS configured for the first information is less than or equal to the third preset threshold (for example: 30KHz), then the PSFCH can use fewer symbols (for example: 2 symbols).
  • the second user equipment 102 may also determine the number of OFDM symbols of the PSFCH according to the format of the PSFCH in the configuration information of SCI or PSFCH. For example: if the format of PSFCH is the second format, then PSFCH can use fewer symbols (for example: 2 symbols), if the format of PSFCH is the first format, then PSFCH can use more symbols (for example: 14 symbols) ).
  • the PSFCH may also use a fixed PSFCH format and a variable number of OFDM symbols of the PSFCH.
  • the second user equipment 102 may determine the number of OFDM symbols of the PSFCH according to the MCS or SCS of the first information.
  • the PSFCH format is the first format, and the number of OFDM symbols of the PSFCH can vary in ⁇ 2, 4, 7, 14 ⁇ , then the higher the modulation order of the first information or the higher the code rate, the symbols used by the PSFCH The fewer the number.
  • the modulation method of the first information is 256QAM and the code rate is 1/2, then PSFCH uses 2 symbols; if the modulation method of the first information is 64QAM and the code rate is 1/2, then PSFCH uses 4 symbols; if the first The modulation method of a message is 16QAM, and the code rate is 1/4, then the PSFCH uses 14 symbols.
  • the number of the second user equipment 102 may be N, where N is a positive integer greater than or equal to 1, and the configuration information of the PSFCH further includes a candidate time-frequency resource offset.
  • the candidate time-frequency resource offset may include a candidate time-domain offset and/or a candidate frequency-domain offset.
  • the candidate time-domain offset may be used for Configure the starting position of the time window, and the candidate frequency domain offset can be used to configure the starting RB offset.
  • the first user equipment 101 and the N second user equipment 102 are pre-configured with a sequence identifier of N second user equipment.
  • the first user equipment 101 may configure the second candidate time-frequency resource for the first second user equipment according to the feedback control channel configuration method in the unicast scenario described above, and the i-th second user equipment may be based on the second candidate time-frequency
  • the sequence identifier of the resource, the candidate time-frequency resource offset, and the i-th second user equipment determines the candidate time-frequency resource of the i-th second user equipment, where 1 ⁇ i ⁇ N.
  • the candidate time-frequency resource of the i-th second user equipment second candidate time-frequency resource+candidate time-frequency resource offset*the sequence identifier of the i-th second user equipment.
  • the first user equipment 101 sends first information to N second user equipments in time slot n
  • the first information includes an SCI
  • the SCI carries configuration information of the PSFCH
  • the PSFCH The configuration information of includes the candidate time domain offset and/or the candidate frequency domain offset, and the values of the candidate time domain offset and the candidate frequency domain offset are 4.
  • the RB occupied by the feedback control information of the second user equipment with the sequence identifier 1 is 1-4
  • the number of time slots is 1-4
  • the RB occupied by the feedback control information of the second user equipment with the sequence identifier 2 is 5-8
  • the number of time slots is 5-8, and so on.
  • N second user equipments 102 may be in ascending or descending order of N second user equipment identifiers, ascending or descending order of destination IDs of N second user equipments as data or information destinations, N second Ascending or descending order of the source ID of the user equipment as the sender of the feedback information, ascending or descending order of the priority of the N second user equipments, and path loss between the N second user equipments and the first user equipment Sort in ascending or descending order.
  • the N second user equipments can also be sorted in other ways, which is not specifically limited in this application.
  • the first user equipment 101 or the second user equipment 102 or the like includes a hardware structure and/or a software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driven hardware depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application may divide the first user equipment 101 or the second user equipment 102 according to the above method examples, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated In a processing module.
  • the above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another division manner.
  • FIG. 9 shows a schematic structural diagram of a user equipment 90.
  • the user equipment 90 includes: a determining module 901 and a sending module 902.
  • the determining module 901 is configured to determine the configuration information of the physical side link feedback control channel PSFCH, where the configuration information of the PSFCH is used to indicate or configure the candidate time-frequency resources of the PSFCH, and the candidate time-frequency resources of the PSFCH are used to carry Feedback control information of the first information.
  • the sending module 902 is configured to send the configuration information of the PSFCH to the second user equipment.
  • the configuration information of the PSFCH includes one or more of the following information: PSFCH format information, PSFCH orthogonal frequency division multiplexing OFDM symbol number information, PSFCH resource pool identification information, feedback control information bits Number, codebook number of feedback control information, codebook count of feedback control information, PSFCH candidate time-frequency resource information, and configuration information repetition number information.
  • the format information of the PSFCH and the modulation and coding strategy MCS of the first information, the subcarrier spacing SCS, or the number of OFDM symbols of the PSFCH have a corresponding relationship.
  • the information on the number of OFDM symbols of the PSFCH has a corresponding relationship with the format of the MCS, SCS, or PSFCH of the first information.
  • the number of the second user equipment is N, and N is a positive integer greater than or equal to 1
  • the configuration information of the PSFCH further includes a candidate time-frequency resource offset, and the candidate time-frequency resource offset is used Configured to configure PSFCH candidate time-frequency resources of the N second user equipments.
  • the sending module 902 is specifically configured to send the configuration information of the PSFCH through a physical side link control channel PSCCH or a physical side link shared channel PSSCH.
  • the user equipment 90 further includes a receiving module 903.
  • the receiving module 903 is configured to receive feedback control information sent by the second user equipment on the candidate time-frequency resource indicated or configured by the PSFCH configuration information.
  • the user equipment 90 is presented in the form of dividing each functional module in an integrated manner.
  • the "module” herein may refer to a specific ASIC, circuit, processor and memory that execute one or more software or firmware programs, integrated logic circuits, and/or other devices that can provide the above functions.
  • the user equipment 90 may adopt the form shown in FIG. 2.
  • the processor 201 in FIG. 2 may call the computer execution instruction stored in the memory 203 to cause the user equipment 90 to execute the feedback control channel configuration method in the foregoing method embodiment.
  • the functions/implementation processes of the sending module 902, the determining module 901, and the receiving module 903 in FIG. 10 may be implemented by the processor 201 in FIG. 2 calling the computer execution instructions stored in the memory 203.
  • the function/implementation process of the determination module 901 in FIG. 10 can be implemented by the processor 201 in FIG. 2 calling the computer execution instructions stored in the memory 203, and the function/implementation of the sending module 902 and the receiving module 903 in FIG.
  • the process can be implemented through the communication interface 204 in FIG. 2.
  • the user equipment 90 provided in this embodiment can execute the above-mentioned feedback control channel configuration method, the technical effects that can be obtained can refer to the above-mentioned method embodiments, which will not be repeated here.
  • an embodiment of the present application further provides an apparatus (for example, the apparatus may be a chip system), and the apparatus includes a processor for supporting the first user equipment 101 to implement the above feedback control channel configuration method, for example, determining The physical side link feeds back the configuration information of the control channel PSFCH, and sends the configuration information of the PSFCH to the second user equipment.
  • the device also includes a memory.
  • the memory is used to store necessary program instructions and data of the first user equipment. Of course, the memory may not be in the device.
  • the device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiments of the present application.
  • FIG. 11 shows a schematic structural diagram of a user equipment 110.
  • the user equipment 110 includes a receiving module 1101 and a determining module 1102.
  • the receiving module 1101 is configured to receive configuration information of the PSFCH from the first user equipment, where the configuration information of the PSFCH is used to indicate or configure candidate time-frequency resources of the PSFCH, and the candidate time-frequency resources of the PSFCH are used to carry the Feedback control information of the first information.
  • the determining module 1102 is configured to determine the resource pool of the PSFCH according to the configuration information of the PSFCH.
  • the determining module 1102 is further configured to determine candidate time-frequency resources in the resource pool according to the configuration information of the PSFCH.
  • the PSFCH configuration information includes one or more of the following information: PSFCH format information, PSFCH OFDM symbol number information, PSFCH resource pool identification information, feedback control information bits, feedback control information Codebook number, codebook count of feedback control information, PSFCH candidate time-frequency resource information, and configuration information repetition number information.
  • the user equipment 110 determines the format of the PSFCH according to the number of OFDM symbols of the MCS, SCS, or PSFCH of the first information.
  • the user equipment 110 determines the number of OFDM symbols of the PSFCH according to the format of the MCS, SCS, or PSFCH of the first information.
  • the number of the user equipment 110 is N, and N is a positive integer greater than or equal to 1
  • the configuration information of the PSFCH further includes a candidate time-frequency resource offset, and the candidate time-frequency resource offset is used for Configuring candidate time-frequency resources of the PSFCH.
  • the user equipment 110 further includes a sending module 1103.
  • the sending module 1103 is configured to send the feedback control information to the first user equipment on the PSFCH configuration information indication or the configured candidate time-frequency resource.
  • the sending module 1103 is specifically configured to: perform detection on the channel where the candidate time-frequency resource is indicated or configured by the configuration information of the PSFCH, and if the channel where the first candidate time-frequency resource is located is idle, the The user equipment sends the feedback control information to the first user equipment on the first candidate time-frequency resource.
  • the user equipment 110 is presented in the form of dividing each functional module in an integrated manner.
  • the "module” herein may refer to a specific ASIC, circuit, processor and memory that execute one or more software or firmware programs, integrated logic circuits, and/or other devices that can provide the above functions.
  • those skilled in the art may think that the user equipment 110 may adopt the form shown in FIG. 2.
  • the processor 201 in FIG. 2 may invoke the computer execution instruction stored in the memory 203 to cause the user equipment 110 to execute the feedback control channel configuration method in the foregoing method embodiment.
  • the functions/implementation processes of the receiving module 1101, the sending module 1103, and the determining module 1102 in FIG. 12 may be implemented by the processor 201 in FIG. 2 calling the computer execution instructions stored in the memory 203.
  • the function/implementation process of the determination module 1102 in FIG. 12 can be implemented by the processor 201 in FIG. 2 calling the computer execution instructions stored in the memory 203, and the function/implementation of the receiving module 1101 and the sending module 1103 in FIG. The process can be implemented through the communication interface 204 in FIG. 2.
  • the user equipment 110 provided in this embodiment can execute the above-mentioned feedback control channel configuration method, the technical effects that can be obtained can refer to the above-mentioned method embodiments, which will not be repeated here.
  • an embodiment of the present application further provides an apparatus (for example, the apparatus may be a chip system), and the apparatus includes a processor for supporting the user equipment 110 to implement the foregoing feedback control channel configuration method, for example, from the first
  • the user equipment receives the PSFCH configuration information, and determines the PSFCH resource pool and the candidate time-frequency resources in the resource pool according to the PSFCH configuration information.
  • the device also includes a memory.
  • the memory is used to store necessary program instructions and data of the user equipment. Of course, the memory may not be in the device.
  • the device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiments of the present application.
  • FIG. 13 shows a schematic diagram of the composition of a communication system.
  • the communication system 130 may include: a user equipment 1301 and a user equipment 1302. It should be noted that FIG. 13 is only an exemplary drawing, and the embodiment of the present application does not limit the network elements included in the communication system 130 shown in FIG. 13 and the number of network elements.
  • the user equipment 1301 has the functions of the user equipment 90 shown in FIG. 9 or FIG. 10, and can be used to determine the configuration information of the PSFCH and send the configuration information of the PSFCH to the user equipment 1302.
  • the user equipment 1302 has the functions of the user equipment 110 shown in FIG. 11 or FIG. 12, and can be used to receive the PSFCH configuration information from the user equipment 1301, determine the PSFCH resource pool according to the PSFCH configuration information, and according to the PSFCH configuration The information determines candidate time-frequency resources in the resource pool.
  • the communication system 130 further includes a base station 1303.
  • the base station 1303 may be used to send the MCS and/or SCS of the first information to the user equipment 1301 and/or the user equipment 1302.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the modules or units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be The combination can either be integrated into another device, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may be one physical unit or multiple physical units, that is, may be located in one place, or may be distributed in multiple different places . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or software function unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium.
  • the technical solutions of the embodiments of the present application may essentially be part of or contribute to the prior art or all or part of the technical solutions may be embodied in the form of software products, which are stored in a storage medium
  • several instructions are included to enable a device (which may be a single-chip microcomputer, chip, etc.) or processor to execute all or part of the steps of the methods described in the embodiments of the present application.
  • the foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本申请实施例提供一种反馈控制信道的配置方法及设备，涉及无线通信领域。可以为承载反馈控制信息的物理侧链路反馈控制信道PSFCH配置候选时频资源，进而可以实现在PSFCH上反馈所需的反馈控制信息。该方法包括：第一用户设备确定物理侧链路反馈控制信道PSFCH的配置信息，该PSFCH的配置信息用于指示或配置所述PSFCH的候选时频资源，该PSFCH的候选时频资源用于承载第一信息的反馈控制信息；第一用户设备向第二用户设备发送该PSFCH的配置信息。

Description

反馈控制信道的配置方法及设备
“本申请要求于2018年12月19日提交国家知识产权局、申请号为201811554313.6发明名称为“反馈控制信道的配置方法及设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中”。
技术领域
本申请涉及无线通信领域，尤其涉及反馈控制信道的配置方法及设备。
背景技术
在5G新空口***中，基站在下行链路上发送下行数据给UE，UE则相应的在上行链路上反馈HARQ-ACK信息；基站也可以在下行链路上发送下行参考信号，UE进而对下行参考信号进行测量并反馈相应的信道状态信息(Channel State Information，CSI)，如周期/半静CSI。其中，HARQ信息、周期/半静态CSI信息均在上行控制信道中承载，属于上行控制信息。广义的来讲，HARQ-ACK信息，周期/半静态CSI信息都是对下行链路数据和信息的反馈，是一种反馈控制信息。
对应地，在侧链路(Sidelink)上，数据或者信息(如参考信号)可以是一个UE(即发送UE)，发送给另外一个或者一组UE(即接收UE)的，而接收UE需要反馈相应的信息给发送UE。但是，在5G新空口***中，目前并没有关于侧链路反馈控制信息的方法。
发明内容
本申请实施例提供反馈控制信道的配置方法及设备，可以为承载反馈控制信息的物理侧链路反馈控制信道PSFCH配置候选时频资源，进而可以实现在PSFCH上反馈所需的反馈控制信息。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，本申请实施例提供一种反馈控制信道的配置方法，该方法包括：第一用户设备确定物理侧链路反馈控制信道PSFCH的配置信息，该PSFCH的配置信息用于指示或配置所述PSFCH的候选时频资源，该PSFCH的候选时频资源用于承载第一信息的反馈控制信息；第一用户设备向第二用户设备发送该PSFCH的配置信息。该第一信息可以包括第一用户设备发送给第二用户设备的数据信息，对应的反馈控制信息中可以包含第二用户设备发送给第一用户设备的该数据的混合自动重传确认信息HARQ-ACK或混合自动重传否认信息HARQ-NACK；第一信息还可以包括第一用户设备发送给第二用户设备的参考信息，该参考信息用于指示第二用户设备对信道状态进行测量，对应的反馈控制信息中可以包含与该参考信息对应的信道状态的测量信息。基于此方案，第一用户设备可以为承载反馈控制信息的PSFCH指示或配置候选时频资源，以实现在PSFCH上反馈所需的反馈控制信息。
结合第一方面，在一种可能的实现方式中，该PSFCH的配置信息包括以下信息中一个或多个：PSFCH的格式信息、PSFCH的正交频分复用OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息 的码本计数、PSFCH的候选时频资源信息和配置信息的重复次数信息。基于此方案，第一用户设备可以通过PSFCH的格式信息、PSFCH的OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息的码本计数、PSFCH的候选时频资源信息和配置信息的重复次数信息中的一个或者多个信息，来指示或配置该PSFCH的候选时频资源，以实现在PSFCH上反馈所需的反馈控制信息。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，该PSFCH的格式信息与第一信息的调制与编码策略MCS、子载波间隔SCS或者该PSFCH的OFDM符号个数有对应关系。基于此方案，第二用户设备可以通过第一信息的MCS、SCS或者该PSFCH的OFDM符号个数信息配置PSFCH的格式，以实现在PSFCH上反馈所需的反馈控制信息。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，PSFCH的OFDM符号个数信息与第一信息的MCS、SCS或者该PSFCH的格式信息有对应关系。基于此方案，第二用户设备可以通过第一信息的MCS、SCS或者该PSFCH的格式配置PSFCH的OFDM符号个数，以实现在PSFCH上反馈所需的反馈控制信息。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，第二用户设备的数量为N，N为大于等于1的正整数，该PSFCH的配置信息还包括候选时频资源偏移量，该候选时频资源偏移量用于配置N个第二用户设备的PSFCH的候选时频资源。基于此方案，第一用户设备可以通过候选时频资源偏移量为N个第二用户设备配置不同的候选时频资源，以实现在PSFCH上反馈所需的反馈控制信息。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，第一用户设备通过物理侧链路控制信道PSCCH或者物理侧链路共享信道PSSCH发送所述PSFCH的配置信息。基于此方案，第一用户设备可以通过PSCCH或者PSSCH发送PSFCH的配置信息，以实现在PSFCH上反馈所需的反馈控制信息。
结合第一方面和上述可能的实现方式，在另一种可能的实现方式中，第一用户设备在该PSFCH的配置信息指示或配置的候选时频资源上接收所述第二用户设备发送的反馈控制信息。基于此方案，第一用户设备可以在该PSFCH的配置信息指示或配置的候选时频资源上接收第二用户设备发送的反馈控制信息，以实现在PSFCH上反馈所需的反馈控制信息。
第二方面，本申请实施例提供一种反馈控制信道的配置方法，该方法包括：第二用户设备从第一用户设备接收PSFCH的配置信息，该PSFCH的配置信息用于指示或配置该PSFCH的候选时频资源，该PSFCH的候选时频资源用于承载所述第一信息的反馈控制信息；第二用户设备根据该PSFCH的配置信息确定该PSFCH的资源池；第二用户设备根据该PSFCH的配置信息确定资源池中的候选时频资源。基于此方案，第二用户设备可以根据PSFCH的配置信息确定该PSFCH的候选时频资源，以实现在PSFCH上反馈所需的反馈控制信息。
结合第二方面，在一种可能的实现方式中，PSFCH的配置信息包括以下信息中一个或多个：PSFCH的格式信息、PSFCH的OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息的码本计数、 PSFCH的候选时频资源信息和配置信息的重复次数信息。基于此方案，第二用户设备可以通过第一用户设备指示或者配置的PSFCH的格式信息、PSFCH的OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息的码本计数、PSFCH的候选时频资源信息和配置信息的重复次数信息中的一个或者多个信息，来确定该PSFCH的候选时频资源，以实现在PSFCH上反馈所需的反馈控制信息。
结合第二方面和上述可能的实现方式，在另一种可能的实现方式中，第二用户设备根据第一信息的MCS、SCS或者PSFCH的OFDM符号个数确定PSFCH的格式。基于此方案，第二用户设备可以通过第一信息的MCS、SCS或者PSFCH的OFDM符号个数确定PSFCH的格式，以实现在PSFCH上反馈所需的反馈控制信息。
结合第二方面和上述可能的实现方式，在另一种可能的实现方式中，第二用户设备根据第一信息的MCS、SCS或者PSFCH的格式确定PSFCH的OFDM符号个数。基于此方案，第二用户设备可以通过第一信息的MCS、SCS或者PSFCH的格式确定PSFCH的OFDM符号个数，以实现在PSFCH上反馈所需的反馈控制信息。
结合第二方面和上述可能的实现方式，在另一种可能的实现方式中，第二用户设备的数量为N，N为大于等于1的正整数，所述PSFCH的配置信息还包括候选时频资源偏移量，所述候选时频资源偏移量用于配置所述PSFCH的候选时频资源。基于此方案，第二用户设备可以通过候选时频资源偏移量为N个第二用户设备确定不同的候选时频资源，以实现在PSFCH上反馈所需的反馈控制信息。
结合第二方面和上述可能的实现方式，在另一种可能的实现方式中，第二用户设备在该PSFCH的配置信息指示或者配置的候选时频资源上向所述第一用户设备发送反馈控制信息。基于此方案，第二用户设备可以在该PSFCH的配置信息指示或者配置的候选时频资源上向所述第一用户设备发送反馈控制信息，以实现在PSFCH上反馈所需的反馈控制信息。
结合第二方面和上述可能的实现方式，在另一种可能的实现方式中，第二用户设备在该PSFCH的配置信息指示或配置的候选时频资源所在信道上进行检测，若第一候选时频资源所在信道空闲时，第二用户设备在第一候选时频资源上向第一用户设备发送反馈控制信息。基于此方案，第二用户设备可以在检测到第一候选时频资源所在信道空闲时，向第一用户设备发送反馈控制信息，以实现在PSFCH上反馈所需的反馈控制信息。
第三方面，本申请实施例提供了一种用户设备，该用户设备具有实现上述第一方面所述的方法和功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第四方面，本申请实施例提供了一种用户设备，该用户设备具有实现上述第二方面所述的方法和功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第五方面，本申请实施例还提供了一种用户设备，包括：至少一个处理器、至少一个存储器以及通信接口，该通信接口、该至少一个存储器与该至少一个处理器耦合；用户设备通过该通信接口与其他设备通信，该至少一个存储器用于存储计算机程序， 使得该计算机程序被该至少一个处理器执行时实现如第一方面及其各种可能的实现方式或第二方面及其各种可能的实现方式所述的反馈控制信道的配置方法。
第六方面，本申请实施例还提供了一种计算机可读存储介质，如计算机非瞬态的可读存储介质。其上储存有计算机程序，当该计算机程序在计算机上运行时，使得计算机执行上述第一方面的任一种可能的方法或者第二方面的任一种可能的方法。例如，该计算机可以是至少一个存储节点。
第七方面，本申请实施例还提供了一种计算机程序产品，当其在计算机上运行时，使得第一方面提供的任一方法或者第二方面提供的任一方法被执行。例如，该计算机可以是至少一个存储节点。
第八方面，本申请实施例提供一种通信***，该通信***可以包括如下任一种或几种：如第三方面中的用户设备，或者如第四方面中的用户设备，或者如第五方面中的用户设备，或者如第六方面中的计算机可读存储介质，或者如第七方面中的计算机程序产品。
可以理解的，上述提供的任一种用户设备或计算机可读存储介质或计算机程序产品等均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考对应的方法中的有益效果，此处不再赘述。
附图说明
图1为本申请实施例提供的通信***架构示意图；
图2为本申请实施例提供的通信设备的硬件结构示意图；
图3为本申请实施例提供的PSCCH与PSSCH关系示意图；
图4为本申请实施例提供的反馈控制信道的配置方法的流程示意图；
图5为本申请实施例提供的PSFCH资源池分布图；
图6为本申请实施例提供的PSFCH的候选时域资源示意图；
图7为本申请实施例提供的PSFCH的候选频域资源示意图；
图8为本申请实施例提供的N个第二用户设备的资源配置示意图；
图9为本申请实施例提供的用户设备的结构示意图一；
图10为本申请实施例提供的用户设备的结构示意图二；
图11为本申请实施例提供的用户设备的结构示意图三；
图12为本申请实施例提供的用户设备的结构示意图四；
图13为本申请实施例提供的通信***的组成示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。其中，在本申请的描述中，除非另有说明，“/”表示前后关联的对象是一种“或”的关系，例如，A/B可以表示A或B；本申请中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A，B可以是单数或者复数。并且，在本申请的描述中，除非另有说明，“多个”是指两个或多于两个。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b， c可以是单个，也可以是多个。另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
此外，本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
如图1所示，为本申请实施例提供的通信***10的架构示意图。图1中，通信***10包括第一用户设备101和第二用户设备102。
可选的，本申请实施例提供的第一用户设备101或者第二用户设备102可以为便携式计算机(如手机)、笔记本电脑、个人计算机(personal computer，PC)、可穿戴电子设备(如智能手表)、平板电脑、增强现实(augmented reality，AR)\虚拟现实(virtual reality，VR)设备、车辆、车载模组、车载电脑、车载芯片、车载通信***、工业控制中的无线终端等，以下实施例对该第一用户设备101和该第二用户设备102的具体形式不做特殊限制。
在具体实现中，作为一种实施例，通信***10可以包括多个第二用户设备，例如图1中的第二用户设备102和第二用户设备103。
可选的，本申请实施例图1中的第一用户设备101或者第二用户设备102可以由一个设备实现，也可以由多个设备共同实现，还可以是一个设备内的一个功能模块，本申请实施例对此不作具体限定。可以理解的是，上述功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行的软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。
例如，本申请实施例图1中的第一用户设备101或者第二用户设备102可以通过图2中的通信设备来实现。图2所示为本申请实施例提供的通信设备的硬件结构示意图。该通信设备200包括处理器201，通信线路202，存储器203以及至少一个通信接口204(图2中仅是示例性的以包括通信接口204为例进行说明)。
处理器201可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信线路202可包括一通路，在上述组件之间传送信息。
通信接口204，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。
存储器203可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光 碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路202与处理器相连接。存储器也可以和处理器集成在一起。
其中，存储器203用于存储执行本申请方案的计算机执行指令，并由处理器201来控制执行。处理器201用于执行存储器203中存储的计算机执行指令，从而实现本申请下述实施例提供的反馈控制信道的配置方法。
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
在具体实现中，作为一种实施例，处理器201可以包括一个或多个CPU，例如图2中的CPU0和CPU1。
在具体实现中，作为一种实施例，通信设备200可以包括多个处理器，例如图2中的处理器201和处理器205。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
上述的通信设备200可以是一个通用设备或者是一个专用设备。在具体实现中，通信设备200可以是台式机、便携式电脑、网络服务器、掌上电脑(personal digital assistant，PDA)、移动手机、平板电脑、无线终端设备、嵌入式设备或有图2中类似结构的设备。本申请实施例不限定通信设备200的类型。
下面将结合图1至图2对本申请实施例提供的反馈控制信道的配置方法进行具体阐述。
需要说明的是，本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，本申请实施例对此不作具体限定。
首先，以第一用户设备101向第二用户设备102发送第一信息，第二用户设备102向第一用户设备101发送第一信息的反馈控制信息为例进行阐述。需要说明的是，第二用户设备102也可以向第一用户设备101发送第二信息，第一用户设备101也可以向第二用户设备发送第二信息的反馈控制信息。所述第一信息和第二信息可以包括侧链路的数据信息，也可以包括参考信息，例如Zadoff-Chu序列，计算机生成序列(Computer generated sequence)。本领域技术人员应该理解，本申请实施例中的第一用户设备101和第二用户设备102既可以是发送数据信息的用户设备，也可以是发送数据信息的反馈控制信息的用户设备。
需要说明的是，若第一用户设备101向第二用户设备102发送第一信息，第二用户设备102可以有多种发送反馈控制信息的方法，例如，第二用户设备102可以将第一信息的反馈控制信息承载在第二用户设备102的物理侧链路控制信道PSCCH或者物理侧链路共享信道PSSCH上发送，示例性的，PSSCH与PSCCH的关系可以如图3所示，对于时隙n，PSCCH中包括指示PSSCH的相关信息，PSSCH用于承载数据。再例如，第二用户设备102可以将第一信息的反馈控制信息承载在第二用户设备102的物理侧链路反馈控制信道PSFCH上发送。
在单播场景下，第一用户设备101和第二用户设备102有周期性的信息发送的情况，可以在第二用户设备102向第一用户设备101发送第二信息时，将第一信息的反馈控制信息承载在第二用户设备102的PSCCH或者PSSCH上发送。采用这种侧链路反馈控制信息的方法，若第一信息的反馈控制信息较大，会过多占用控制信息或者数据信息的资源，会使编码速率提高，解调性能降低；另外，将第一信息的反馈控制信息复用在PSCCH或者PSSCH还会带来额外的时延。在组播场景下，第一用户设备101可以向N(N是大于1的正整数)个第二用户设备发送数据或者信息，N个第二用户设备可以反馈混合自动重传确认信息HARQ-ACK或混合自动重传否认信息HARQ-NACK和/或信道状态信息CSI，但N个第二用户设备不一定有周期性的数据发送给第一用户设备101。
第二用户设备102还可以将第一信息的反馈控制信息承载在第二用户设备102的PSFCH上发送，该PSFCH是独立承载反馈控制信息的反馈控制信道，其他非反馈控制信息和数据一般不可以使用该PSFCH所在的频域或时域资源。本申请提供的以下实施例是对将第一信息的反馈控制信息承载在第二用户设备102的PSFCH上发送的具体过程进行了阐述。
如图4所示，为本申请实施例提供的一种反馈控制信道的配置方法，该反馈控制信道的配置方法包括以下步骤：
步骤401、第一用户设备101确定PSFCH的配置信息。
需要说明的是，该PSFCH的配置信息用于指示或配置该PSFCH的候选时频资源，该PSFCH的候选时频资源用于承载第一信息的反馈控制信息。
示例性的，该PSFCH的配置信息包括以下信息中一个或多个：PSFCH的格式信息、PSFCH的正交频分复用OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息的码本计数、PSFCH的候选时频资源信息和配置信息的重复次数信息。
PSFCH的格式信息包括第一格式和/或第二格式。其中，第一格式可以是符号数固定的格式，例如，第一格式可以固定占用一个时隙(14个符号)。第一格式的解调参考信号DMRS符号的位置是固定的，例如：第一格式的DMRS符号可以是符号2、5、8以及符号10。第二格式可以是符号数可变的格式，变化范围可以是N 1-N 2，N 1和N 2为正整数，0＜N 1＜N 2≤14。第二格式的DMRS符号的位置可以是预定义的，例如，若第二格式的符号数的变化范围是4-6，若PSFCH的时域长度为4个符号，符号2可以被预定义为DMRS符号，若PSFCH的时域长度为5个符号，符号3可以被预定义为DMRS符号，若PSFCH的时域长度为6个符号，符号1和符号4可以被预定义为DMRS符号。示例性的，可以通过1比特指示PSFCH的格式，若该PSFCH的配置信息中将PSFCH的格式信息指示为0，可以表示PSFCH的格式是第一格式；若该PSFCH的配置信息中将PSFCH的格式信息指示为1，可以表示PSFCH的格式是第二格式。本领域技术人员应当理解，PSFCH的格式信息还可以有其他的指示方式，本申请实施例不进行具体限制。
PSFCH的OFDM符号个数信息用于指示PSFCH的OFDM符号个数。示例性的，第一用户设备101和第二用户设备102预配置有PSFCHOFDM符号个数的一个或者多 个集合，例如{1，2}、{4，7，14}。若第一用户设备101和第二用户设备102将集合{1，2}作为目标PSFCH的OFDM符号个数集合，若该PSFCH的配置信息中将PSFCH的OFDM符号个数信息指示为0，可以表示PSFCH的OFDM符号个数是1；若该PSFCH的配置信息中将PSFCH的OFDM符号个数信息指示为1，可以表示PSFCH的OFDM符号个数是2。其中，目标PSFCH的OFDM符号个数集合可以由高层信令进行配置。本领域技术人员应当理解，PSFCH的OFDM符号个数信息还可以有其他的指示方式，本申请实施例不进行具体限制。
PSFCH资源池的标识信息用于指示PSFCH资源池的标识。PSFCH的资源池可以位于整个带宽或者整个部分带宽(bandwidth part，BWP)的两端，如图5所示，PSFCH的资源池可以是图5所示的带宽/部分带宽，或者，PSFCH的资源池可以是图5所示资源池501和资源池502。PSFCH的资源池是PSFCH特有的，其他的非反馈控制信息或者数据信息若满足以下条件的至少一条时，才可以使用PSFCH的资源池。
1、若第二用户设备102在向第一用户设备101发送反馈控制信息的同时还需要发送第三信息，所述第三信息可以包括数据信息、参考信息或者序列信息。
2、若PSCCH和PSSCH的资源池中的资源占用率大于第一预设阈值(例如：60％)，且PSFCH的资源池的资源占用率小于第二预设阈值(例如：50％)，或者，第二用户设备102连续P次在反馈控制信息的前Q个候选时频资源上反馈控制信息成功，其中，P和Q是正整数，1＜P＜10，1＜Q＜10。
3、第二用户设备102发送的数据或信息所占的OFDM符号个数小于等于第一用户设备101为第二用户设备102配置的PSFCH的OFDM符号个数。
若反馈信息为HARQ-ACK或HARQ-NACK信息时，反馈控制信息的码本数可以表示第二用户设备需要向第一用户设备反馈的HARQ-ACK或HARQ-NACK码本(codebook)的个数。
若第一用户设备的第一信息包括数据信息且多次发送的第一信息需要第二用户设备在同一个候选时频资源或码本中反馈，反馈信息的码本计数可以用于计数第一用户设备发送第一信息的个数，例如，每发送一个第一信息则反馈信息的码本计数增加1。
PSFCH的候选时频资源信息包括PSFCH的候选时域资源信息和PSFCH的候选频域资源信息。
可选的，PSFCH的配置信息可以通过指示时间窗长、时间窗起始位置以及时间窗内的PSFCH起始位置位图配置PSFCH的候选时域资源。时间窗可以开始于第二用户设备102接收完成第一用户设备101发送的第一信息所在时隙之后的第L个时隙，时间窗长为连续M个时隙，L为大于等于零的正整数，M为大于等于1的正整数。时间窗起始点位置可以位于时隙的边界，也可以位于时隙的某一符号处，第一用户设备101可以通过位图(bitmap)的方式指示时间窗内的PSFCH起始点位置，如图6所示，时间窗长M为2个时隙，时间窗内包括4个起始点，时间窗内的起始点可以表示为b 0b 1b 2b 3＝0101，即时间窗内的第二起始点和第四起始点可以用于PSFCH的接入。
可选的，PSFCH的配置信息也可以通过指示时间窗长和时间窗起始位置配置PSFCH的候选时域资源。示例性的，PSFCH的配置信息可以通过指示0-L中的某一个时隙为时间窗的起始位置，其中，L为不超过16的正整数。例如：若时间窗长M为2 个时隙，时间窗起始位置为5，可以表示在第二用户设备102接收完成第一用户设备101发送的第一信息时隙之后的第5个时隙至第6个时隙中的起始点都可以用于PSFCH的接入。
可选的，PSFCH的配置信息还可以通过指示时间窗长和时间窗内的PSFCH起始位置位图配置PSFCH的候选时域资源。例如，若时间窗长M为2个时隙，时间窗内包括4个起始点，时间窗内的起始点可以表示为b 0b 1b 2b 3＝0101，PSFCH可以在第二用户设备102接收完成第一用户设备101发送的第一信息时隙之后的第1-2个时隙的第二起始点和第四起始点接入，PSFCH还可以在第二用户设备102接收完成第一用户设备101发送的第一信息时隙之后的第3-4个时隙的第二起始点和第四起始点接入。
可选的，PSFCH的配置信息可以通过指示起始资源块RB的偏移量、RB个数以及频域候选资源个数配置PSFCH的候选频域资源。起始RB的偏移量用于指示频域候选资源在配置资源池中相对于资源池边界的RB索引。示例性的，如图7所示，PSFCH所在的资源池位于带宽RB 10～15，PSFCH的起始RB偏移量为2，RB个数为1，频域候选资源个数为3，那么PSFCH的候选频域资源即为RB 12～14。
配置信息重复次数信息用于指示PSFCH的配置信息可以重复使用的次数。若第一用户设备101周期性地向第二用户设备102发送数据或信息，或者第一用户设备101想采取相同的PSFCH配置信息，那么第一用户设备101可以通过配置配置信息的重复次数T 1，确定当前的PSFCH配置信息可以重复使用。例如：第一用户设备101以周期t向第二用户设备发送数据或信息，第一用户设备101可以在第一次发送数据或信息时在侧链路控制信息(sidelink control information，SCI)中携带PSFCH的配置信息，该PSFCH的配置信息包括配置信息的重复次数T 1，那么在接下来发送的T 1-1次数据或信息中，不用发送PSFCH的配置信息，第二用户设备102也可以根据第一次发送的PSFCH的配置信息指示或配置PSFCH的候选时频资源，以达到节约信令开销的目的。可以用2比特或者2比特以上指示配置信息的重复次数信息，示例性的，将配置信息的重复次数信息配置为00，表示不需要重复发送第一信息的反馈控制信息。示例性的，配置信息的重复次数信息也可以配置为无穷大，若配置为无穷大时，第一用户设备还可以向第二用户设备发送配置释放信息，释放PSFCH配置信息。另一方面，无论重复次数的配置为具体值还是无穷大，若第二用户设备接收到第一用户设备发送的新的PSFCH配置信息，那么第二用户设备将更新之前的PSFCH配置信息，使用新的PSFCH配置信息。
步骤402、第一用户设备101向第二用户设备102发送PSFCH的配置信息。
第一用户设备101可以通过PSCCH或者PSSCH向第二用户设备102发送PSFCH的配置信息。
步骤403、第二用户设备102根据PSFCH的配置信息确定PSFCH的资源池。
需要说明的是，第二用户设备102可以根据PSFCH的配置信息中的PSFCH资源池的标识信息确定PSFCH的资源池。PSFCH资源池的标识信息中可以包括至少一个PSFCH资源池的标识。
步骤404、第二用户设备102根据PSFCH的配置信息确定资源池中的候选时频资源。
需要说明的是，第二用户设备102可以根据PSFCH的配置信息中的PSFCH的候选时频资源信息确定资源池中的候选时频资源。PSFCH的候选时频资源信息包括PSFCH的候选时域资源信息和PSFCH的候选频域资源信息。
可选的，第二用户设备102可以根据时间窗长、时间窗起始位置以及时间窗内的起始位置位图确定PSFCH的候选时域资源。可选的，第二用户设备102也可以根据时间窗长和时间窗的起始位置确定PSFCH的候选时域资源。可选的，第二用户设备102还可以根据时间窗长以及时间窗内的起始位置位图配置PSFCH的候选时域资源。
可选的，第二用户设备102可以根据起始RB的偏移量、RB个数以及频域候选时频资源个数配置PSFCH的候选频域资源。
步骤405、第二用户设备102在PSFCH的配置信息指示或者配置的候选时频资源上向所述第一用户设备101发送反馈控制信息。
进一步的，第二用户设备102在PSFCH的配置信息指示或配置的所述候选时频资源所在信道上进行检测，若第一候选时频资源所在信道空闲时，所述第二用户设备在第一候选时频资源上向第一用户设备101发送反馈控制信息。其中，候选时频资源所在的信道是BWP的一部分，所述第一候选时频资源可以是起始位置在前的候选时频资源。该检测的方式可以是先听后说LBT(listen before talk)、空闲信道评估CCA(clean channel access)或者其他的检测方式。
进一步的，若第一用户设备101的PSCCH或者PSSCH中的PSFCH的配置信息不包括PSFCH的格式信息，或者第一用户设备101没有向第二用户设备102发送PSFCH的配置信息，第二用户设备102可以根据第一信息的MCS、SCS或者PSFCH的OFDM符号个数确定PSFCH的格式。
需要说明的是，第一信息的MCS和SCS可以是基站配置给第一用户设备101和第二用户设备102的，也可以是第一用户设备101根据信道的当前状态给第一信息配置的，再通过SCI发送给第二用户设备102。第一用户设备101和第二用户设备102可以预存MCS或者SCS与PSFCH的格式的对应关系，第二用户设备102可以根据该对应关系确定PSFCH的格式。
示例性的，若第一用户设备101给第一信息配置较高的调制阶数(例如：64QAM、256QAM等)或者采用较高的码率(例如：3/4)，那么PSFCH可以采用第二格式，若第一用户设备101给第一信息配置较低的调制阶数(例如：BPSK、QPSK等)或者采用较低的码率(例如：1/4)，那么PSFCH可以采用第一格式。
示例性的，若第一用户设备101给第一信息配置的SCS大于第三预设阈值(例如：30KHz)，那么PSFCH可以采用第一格式，若第一用户设备101给第一信息配置的SCS小于等于第三预设阈值(例如：30KHz)，那么PSFCH可以采用第二格式。
第二用户设备102还可以根据SCI或者PSFCH的配置信息中的PSFCH的OFDM符号个数确定PSFCH的格式。例如：若PSFCH的OFDM符号个数是2，那么PSFCH可以采用第二格式，若PSFCH的OFDM符号个数是14，那么PSFCH可以采用第一格式。
进一步的，若第一用户设备101的PSCCH或者PSSCH中的PSFCH的配置信息不包括PSFCH的OFDM符号个数，或者第一用户设备101没有向第二用户设备102 发送PSFCH的配置信息，第二用户设备102可以根据第一信息的MCS、SCS或者PSFCH的格式确定PSFCH的OFDM符号个数。
需要说明的是，第一信息的MCS和SCS可以是基站配置给第一用户设备101和第二用户设备102的，也可以是第一用户设备101根据信道的当前状态给第一信息配置的，再通过SCI发送给第二用户设备102。第一用户设备101和第二用户设备102可以预存MCS或者SCS与PSFCH的OFDM符号个数的对应关系，第二用户设备102可以根据该对应关系确定PSFCH的OFDM符号个数。
示例性的，若第一用户设备101给第一信息配置较高的调制阶数(例如：64QAM、256QAM等)或者采用较高的码率(例如：3/4)，那么PSFCH可以采用较少的符号(例如：2个符号)，若第一用户设备101给第一信息配置较低的调制阶数(例如：BPSK、QPSK等)或者采用较低的码率(例如：1/2)，那么PSFCH可以采用较多的符号(例如：14个符号)。
示例性的，若第一用户设备101给第一信息配置的SCS大于第三预设阈值(例如：30KHz)，那么PSFCH可以采用较多的符号(例如：14个符号)，若第一用户设备101给第一信息配置的SCS小于等于第三预设阈值(例如：30KHz)，那么PSFCH可以采用较少的符号(例如：2个符号)。
第二用户设备102还可以根据SCI或者PSFCH的配置信息中的PSFCH的格式确定PSFCH的OFDM符号个数。例如：若PSFCH的格式是第二格式，那么PSFCH可以采用较少的符号(例如：2个符号)，若PSFCH的格式是第一格式，那么PSFCH可以采用较多的符号(例如：14个符号)。
PSFCH还可以采用固定的PSFCH格式和可变的PSFCH的OFDM符号个数，第二用户设备102可以根据第一信息的MCS或者SCS确定PSFCH的OFDM符号个数。例如，PSFCH格式为第一格式，PSFCH的OFDM符号个数可以在{2，4，7，14}中变化，那么第一信息的调制阶数越高或者码率越高，则PSFCH采用的符号数越少。若第一信息的调制方式是256QAM，码率为1/2，则PSFCH采用2个符号；若第一信息的调制方式是64QAM，码率为1/2，则PSFCH采用4个符号；若第一信息的调制方式是16QAM，码率为1/4，则PSFCH采用14个符号。
进一步的，第二用户设备102的数量可以为N，N为大于等于1的正整数，PSFCH的配置信息还包括候选时频资源偏移量。
当N＝1时，适用于单播场景，所述候选时频资源偏移量为0。
当N>1时，适用于组播场景，所述候选时频资源偏移量可以包含候选时域偏移量和/或候选频域偏移量，所述候选时域偏移量可以用于配置时间窗起始位置，所述候选频域偏移量可以用于配置起始RB的偏移量。
在组播场景下，第一用户设备101和N个第二用户设备102预配置有N个第二用户设备的顺序标识。第一用户设备101可以按照上述单播场景下的反馈控制信道的配置方法，为第1个第二用户设备配置第二候选时频资源，第i个第二用户设备可以根据第二候选时频资源、候选时频资源偏移量和第i个第二用户设备的顺序标识确定第i个第二用户设备的候选时频资源，其中，1＜i≤N。
进一步的，第i个第二用户设备的候选时频资源＝第二候选时频资源+候选时频资 源偏移量*第i个第二用户设备的顺序标识。
示例性的，如图8所示，第一用户设备101在时隙n向N个第二用户设备发送第一信息，该第一信息包括SCI，该SCI中携带有PSFCH的配置信息，该PSFCH的配置信息包括候选时域偏移量和/或候选频域偏移量，该候选时域偏移量和候选频域偏移量的值是4。顺序标识为1的第二用户设备的反馈控制信息占用的RB是1-4，时隙数为1-4，顺序标识为2的第二用户设备的反馈控制信息占用的RB是5-8，时隙数为5-8，以此类推。
N个第二用户设备102可以按照N个第二用户设备标识的升序或者降序、N个第二用户设备作为数据或信息目的地的目的地标识(Destination ID)的升序或者降序、N个第二用户设备作为反馈信息的发送方的源标识(Source ID)的升序或者降序，N个第二用户设备的优先级的升序或者降序、N个第二用户设备与第一用户设备之间的路径损耗进的升序或者降序进行排序。本领域技术人员应该理解，N个第二用户设备还可以按照其他的方式进行排序，本申请对此不进行具体限定。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，上述第一用户设备101或者第二用户设备102等为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对第一用户设备101或者第二用户设备102进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
比如，以采用集成的方式划分各个功能模块的情况下，图9示出了一种用户设备90的结构示意图。该用户设备90包括：确定模块901和发送模块902。确定模块901，用于确定物理侧链路反馈控制信道PSFCH的配置信息，所述PSFCH的配置信息用于指示或配置所述PSFCH的候选时频资源，所述PSFCH的候选时频资源用于承载第一信息的反馈控制信息。发送模块902，用于向第二用户设备发送所述PSFCH的配置信息。
可选的，所述PSFCH的配置信息包括以下信息中一个或多个：PSFCH的格式信息、PSFCH的正交频分复用OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息的码本计数、PSFCH的候选时频资源信息和配置信息重复次数信息。
可选的，所述PSFCH的格式信息与所述第一信息的调制与编码策略MCS、子载波间隔SCS或者PSFCH的OFDM符号个数有对应关系。
可选的，所述PSFCH的OFDM符号个数信息与所述第一信息的MCS、SCS或者 PSFCH的格式有对应关系。
可选的，所述第二用户设备的数量为N，N为大于等于1的正整数，所述PSFCH的配置信息还包括候选时频资源偏移量，所述候选时频资源偏移量用于配置所述N个第二用户设备的PSFCH的候选时频资源。
可选的，所述发送模块902具体用于：通过物理侧链路控制信道PSCCH或者物理侧链路共享信道PSSCH发送所述PSFCH的配置信息。
可选的，如图10所示，用户设备90还包括接收模块903。该接收模块903，用于在所述PSFCH的配置信息指示或配置的候选时频资源上接收所述第二用户设备发送的反馈控制信息。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在本实施例中，该用户设备90以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该用户设备90可以采用图2所示的形式。
比如，图2中的处理器201可以通过调用存储器203中存储的计算机执行指令，使得用户设备90执行上述方法实施例中的反馈控制信道的配置方法。
示例性的，图10中的发送模块902、确定模块901和接收模块903的功能/实现过程可以通过图2中的处理器201调用存储器203中存储的计算机执行指令来实现。或者，图10中的确定模块901的功能/实现过程可以通过图2中的处理器201调用存储器203中存储的计算机执行指令来实现，图10中的发送模块902和接收模块903的功能/实现过程可以通过图2中的通信接口204来实现。
由于本实施例提供的用户设备90可执行上述的反馈控制信道的配置方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
可选的，本申请实施例还提供了一种装置(例如，该装置可以是芯片***)，该装置包括处理器，用于支持第一用户设备101实现上述反馈控制信道的配置方法，例如确定物理侧链路反馈控制信道PSFCH的配置信息，并向第二用户设备发送所述PSFCH的配置信息。在一种可能的设计中，该装置还包括存储器。该存储器，用于保存第一用户设备必要的程序指令和数据。当然，存储器也可以不在该装置中。该装置是芯片***时，可以由芯片构成，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
或者，比如，以采用集成的方式划分各个功能模块的情况下，图11示出了一种用户设备110的结构示意图。该用户设备110包括：接收模块1101和确定模块1102。接收模块1101，用于从第一用户设备接收PSFCH的配置信息，所述PSFCH的配置信息用于指示或配置所述PSFCH的候选时频资源，所述PSFCH的候选时频资源用于承载所述第一信息的反馈控制信息。确定模块1102，用于根据所述PSFCH的配置信息确定所述PSFCH的资源池。确定模块1102，还用于根据所述PSFCH的配置信息确定所述资源池中的候选时频资源。
可选的，所述PSFCH的配置信息包括以下信息中一个或多个：PSFCH的格式信 息、PSFCH的OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息的码本计数、PSFCH的候选时频资源信息和配置信息重复次数信息。
可选的，所述用户设备110根据所述第一信息的MCS、SCS或者PSFCH的OFDM符号个数确定PSFCH的格式。
可选的，所述用户设备110根据所述第一信息的MCS、SCS或者PSFCH的格式确定PSFCH的OFDM符号个数。
可选的，所述用户设备110的数量为N，N为大于等于1的正整数，所述PSFCH的配置信息还包括候选时频资源偏移量，所述候选时频资源偏移量用于配置所述PSFCH的候选时频资源。
可选的，如图12所示，所述用户设备110还包括发送模块1103。
所述发送模块1103，用于在所述PSFCH的配置信息指示或者配置的候选时频资源上向所述第一用户设备发送所述反馈控制信息。
可选的，所述发送模块1103具体用于：在所述PSFCH的配置信息指示或配置的所述候选时频资源所在信道上进行检测，若第一候选时频资源所在信道空闲时，所述用户设备在所述第一候选时频资源上向所述第一用户设备发送所述反馈控制信息。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在本实施例中，该用户设备110以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该用户设备110可以采用图2所示的形式。
比如，图2中的处理器201可以通过调用存储器203中存储的计算机执行指令，使得用户设备110执行上述方法实施例中的反馈控制信道的配置方法。
示例性的，图12中的接收模块1101、发送模块1103和确定模块1102的功能/实现过程可以通过图2中的处理器201调用存储器203中存储的计算机执行指令来实现。或者，图12中的确定模块1102的功能/实现过程可以通过图2中的处理器201调用存储器203中存储的计算机执行指令来实现，图12中的接收模块1101和发送模块1103的功能/实现过程可以通过图2中的通信接口204来实现。
由于本实施例提供的用户设备110可执行上述的反馈控制信道的配置方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
可选的，本申请实施例还提供了一种装置(例如，该装置可以是芯片***)，该装置包括处理器，用于支持用户设备110实现上述反馈控制信道的配置方法，例如从第一用户设备接收PSFCH的配置信息，并根据所述PSFCH的配置信息确定所述PSFCH的资源池和所述资源池中的候选时频资源。在一种可能的设计中，该装置还包括存储器。该存储器，用于保存用户设备必要的程序指令和数据。当然，存储器也可以不在该装置中。该装置是芯片***时，可以由芯片构成，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
图13示出了的一种通信***的组成示意图，如图13所示，该通信***130中可 以包括：用户设备1301和用户设备1302。需要说明的是，图13仅为示例性附图，本申请实施例不限定图13所示通信***130包括的网元以及网元的个数。
其中，用户设备1301具有上述图9或图10所示用户设备90的功能，可以用于确定PSFCH的配置信息，并向用户设备1302发送该PSFCH的配置信息。
用户设备1302具有上述图11或图12所示用户设备110的功能，可以用于从用户设备1301接收PSFCH的配置信息，根据该PSFCH的配置信息确定该PSFCH的资源池；并根据该PSFCH的配置信息确定该资源池中的候选时频资源。
可选的，通信***130还包括基站1303。
基站1303可以用于向用户设备1301和/或用户设备1302发送第一信息的MCS和/或SCS。
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到该通信***130对应网元的功能描述，在此不再赘述。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个装置，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (30)

  1. 一种反馈控制信道的配置方法，其特征在于，包括：
    第一用户设备确定物理侧链路反馈控制信道PSFCH的配置信息，所述PSFCH的配置信息用于指示或配置所述PSFCH的候选时频资源，所述PSFCH的候选时频资源用于承载第一信息的反馈控制信息；
    所述第一用户设备向第二用户设备发送所述PSFCH的配置信息。
  2. 根据权利要求1所述的反馈控制信道的配置方法，其特征在于，所述PSFCH的配置信息包括以下信息中一个或多个：PSFCH的格式信息、PSFCH的正交频分复用OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息的码本计数、PSFCH的候选时频资源信息和配置信息的重复次数信息。
  3. 根据权利要求1或2所述的反馈控制信道的配置方法，其特征在于，所述PSFCH的格式信息与所述第一信息的调制与编码策略MCS、子载波间隔SCS或者所述PSFCH的OFDM符号个数信息有对应关系。
  4. 根据权利要求1-3任一项所述的反馈控制信道的配置方法，其特征在于，所述PSFCH的OFDM符号个数信息与所述第一信息的MCS、SCS或者所述PSFCH的格式信息有对应关系。
  5. 根据权利要求1-4任一项所述的反馈控制信道的配置方法，其特征在于，所述第二用户设备的数量为N，N为大于等于1的正整数，所述PSFCH的配置信息还包括候选时频资源偏移量，所述候选时频资源偏移量用于配置N个第二用户设备的PSFCH的候选时频资源。
  6. 根据权利要求1-5任一项所述的反馈控制信道的配置方法，其特征在于，所述第一用户设备向第二用户设备发送所述PSFCH的配置信息，包括：
    所述第一用户设备通过物理侧链路控制信道PSCCH或者物理侧链路共享信道PSSCH发送所述PSFCH的配置信息。
  7. 根据权利要求1-6任一项所述的反馈控制信道的配置方法，其特征在于，所述方法还包括：所述第一用户设备在所述PSFCH的配置信息指示或配置的候选时频资源上接收所述第二用户设备发送的反馈控制信息。
  8. 一种反馈控制信道的配置方法，其特征在于，包括：
    第二用户设备从第一用户设备接收PSFCH的配置信息，所述PSFCH的配置信息用于指示或配置所述PSFCH的候选时频资源，所述PSFCH的候选时频资源用于承载第一信息的反馈控制信息；
    所述第二用户设备根据所述PSFCH的配置信息确定所述PSFCH的资源池；
    所述第二用户设备根据所述PSFCH的配置信息确定所述资源池中的候选时频资源。
  9. 根据权利要求8所述的反馈控制信道的配置方法，其特征在于，所述PSFCH的配置信息包括以下信息中一个或多个：PSFCH的格式信息、PSFCH的OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息的码本计数、PSFCH的候选时频资源信息和配置信息的重复次数信 息。
  10. 根据权利要求8或9所述的反馈控制信道的配置方法，其特征在于，所述第二用户设备根据所述第一信息的MCS、SCS或者所述PSFCH的OFDM符号个数信息确定PSFCH的格式。
  11. 根据权利要求8-10任一项所述的反馈控制信道的配置方法，其特征在于，所述第二用户设备根据所述第一信息的MCS、SCS或者所述PSFCH的格式信息确定PSFCH的OFDM符号个数。
  12. 根据权利要求8-11任一项所述的反馈控制信道的配置方法，其特征在于，所述第二用户设备的数量为N，N为大于等于1的正整数，所述PSFCH的配置信息还包括候选时频资源偏移量，所述候选时频资源偏移量用于配置所述PSFCH的候选时频资源。
  13. 根据权利要求8-12任一项所述的反馈控制信道的配置方法，其特征在于，所述方法还包括：
    所述第二用户设备在所述PSFCH的配置信息指示或者配置的候选时频资源上向所述第一用户设备发送所述反馈控制信息。
  14. 根据权利要求13所述的反馈控制信道的配置方法，其特征在于，所述第二用户设备在所述PSFCH的配置信息指示或者配置的候选时频资源上向所述第一用户设备发送所述反馈控制信息，包括：
    所述第二用户设备在所述PSFCH的配置信息指示或配置的候选时频资源所在信道上进行检测，若第一候选时频资源所在信道空闲时，所述第二用户设备在所述第一候选时频资源上向所述第一用户设备发送所述反馈控制信息。
  15. 一种用户设备，其特征在于，包括：确定模块和发送模块；
    所述确定模块，用于确定物理侧链路反馈控制信道PSFCH的配置信息，所述PSFCH的配置信息用于指示或配置所述PSFCH的候选时频资源，所述PSFCH的候选时频资源用于承载第一信息的反馈控制信息；
    所述发送模块，用于向第二用户设备发送所述PSFCH的配置信息。
  16. 根据权利要求15所述的用户设备，其特征在于，所述PSFCH的配置信息包括以下信息中一个或多个：PSFCH的格式信息、PSFCH的正交频分复用OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息的码本计数、PSFCH的候选时频资源信息和配置信息的重复次数信息。
  17. 根据权利要求15或16所述的用户设备，其特征在于，所述PSFCH的格式信息与所述第一信息的调制与编码策略MCS、子载波间隔SCS或者所述PSFCH的OFDM符号个数信息有对应关系。
  18. 根据权利要求15-17任一项所述的用户设备，其特征在于，所述PSFCH的OFDM符号个数信息与所述第一信息的MCS、SCS或者所述PSFCH的格式信息有对应关系。
  19. 根据权利要求15-18任一项所述的用户设备，其特征在于，所述第二用户设备的数量为N，N为大于等于1的正整数，所述PSFCH的配置信息还包括候选时频资 源偏移量，所述候选时频资源偏移量用于配置N个第二用户设备的PSFCH的候选时频资源。
  20. 根据权利要求15-19任一项所述的用户设备，其特征在于，所述发送模块具体用于：通过物理侧链路控制信道PSCCH或者物理侧链路共享信道PSSCH发送所述PSFCH的配置信息。
  21. 根据权利要求15-20任一项所述的用户设备，其特征在于，所述用户设备还包括：接收模块，
    所述接收模块，用于在所述PSFCH的配置信息指示或配置的候选时频资源上接收所述第二用户设备发送的反馈控制信息。
  22. 一种用户设备，其特征在于，包括：接收模块和确定模块；
    所述接收模块，用于从第一用户设备接收PSFCH的配置信息，所述PSFCH的配置信息用于指示或配置所述PSFCH的候选时频资源，所述PSFCH的候选时频资源用于承载第一信息的反馈控制信息；
    所述确定模块，用于根据所述PSFCH的配置信息确定所述PSFCH的资源池；
    所述确定模块，还用于根据所述PSFCH的配置信息确定所述资源池中的候选时频资源。
  23. 根据权利要求22所述的用户设备，其特征在于，所述PSFCH的配置信息包括以下信息中一个或多个：PSFCH的格式信息、PSFCH的OFDM符号个数信息、PSFCH资源池的标识信息、反馈控制信息的比特数、反馈控制信息的码本数、反馈控制信息的码本计数、PSFCH的候选时频资源信息和配置信息的重复次数信息。
  24. 根据权利要求22或23所述的用户设备，其特征在于，所述用户设备根据所述第一信息的MCS、SCS或者所述PSFCH的OFDM符号个数信息确定PSFCH的格式。
  25. 根据权利要求22-24任一项所述的用户设备，其特征在于，所述用户设备根据所述第一信息的MCS、SCS或者所述PSFCH的格式信息确定PSFCH的OFDM符号个数。
  26. 根据权利要求22-25任一项所述的用户设备，其特征在于，所述用户设备的数量为N，N为大于等于1的正整数，所述PSFCH的配置信息还包括候选时频资源偏移量，所述候选时频资源偏移量用于配置所述PSFCH的候选时频资源。
  27. 根据权利要求22-26任一项所述的用户设备，其特征在于，所述用户设备还包括发送模块；
    所述发送模块，用于在所述PSFCH的配置信息指示或者配置的候选时频资源上向所述第一用户设备发送所述反馈控制信息。
  28. 根据权利要求27所述的用户设备，其特征在于，所述发送模块具体用于：在所述PSFCH的配置信息指示或配置的候选时频资源所在信道上进行检测，若第一候选时频资源所在信道空闲时，所述用户设备在所述第一候选时频资源上向所述第一用户设备发送所述反馈控制信息。
  29. 一种用户设备，包括：至少一个处理器，至少一个存储器以及通信接口，其特征在于，
    所述通信接口、所述至少一个存储器与所述至少一个处理器耦合；所述用户设备通过所述通信接口与其他设备通信，所述至少一个存储器用于存储计算机程序，使得所述计算机程序被所述至少一个处理器执行时实现如权利要求1-7中任一项所述的反馈控制信道的配置方法，或权利要求8-14中任一项所述的反馈控制信道的配置方法。
  30. 一种计算机可读存储介质，其特征在于，包括计算机程序，当所述计算机程序在至少一个存储节点上运行时，所述至少一个存储节点执行权利要求1-7中任一项所述的反馈控制信道的配置方法，或权利要求8-14中任一项所述的反馈控制信道的配置方法。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022073214A1 (en) * 2020-10-09 2022-04-14 Nokia Shanghai Bell Co., Ltd. Harq feedback for nr sidelink communication in unlicensed spectrum

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3886348B1 (en) * 2019-01-11 2024-07-31 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Sidelink communication method, terminal device and network device
CN111435909B (zh) * 2019-01-11 2022-01-14 华为技术有限公司 发送和接收反馈信道的方法以及装置
WO2020145723A1 (ko) * 2019-01-11 2020-07-16 엘지전자 주식회사 Nr v2x에서 pssch 자원을 선택하는 방법 및 장치
KR20200114828A (ko) * 2019-03-29 2020-10-07 삼성전자주식회사 무선 통신 시스템에서 사이드링크 피드백 채널의 신호 처리를 위한 방법 및 장치
US11356979B2 (en) * 2019-04-24 2022-06-07 Samsung Electronics Co., Ltd. Method and apparatus for NR V2X sidelink HARQ procedure
CN113891462B (zh) * 2020-07-03 2023-06-20 维沃移动通信有限公司 副链路反馈资源配置方法、信息处理方法和设备
WO2022011594A1 (en) * 2020-07-15 2022-01-20 Qualcomm Incorporated Transmission of reverse-link grants for anchor based sidelink communication
CN111862643B (zh) * 2020-07-20 2022-01-14 南京木马牛智能科技有限公司 在复杂环境下发送危险预警语音信息的方法及智能眼镜
WO2022021314A1 (en) * 2020-07-31 2022-02-03 Guangdong Oppo Mobile Telecommunications Corp., Ltd. User equipment and method for sidelink communication in unlicensed frequency spectrum by same
WO2022077435A1 (en) * 2020-10-16 2022-04-21 Apple Inc. Systems and methods for resource allocation and encoding of inter-ue coordination messages
US11805471B2 (en) * 2020-11-18 2023-10-31 Qualcomm Incorporated Discovery indication for sidelink
CN114765506B (zh) * 2021-01-15 2024-04-26 展讯通信（上海）有限公司 辅链路的psfch传输方法及装置、计算机可读存储介质
CN117157925A (zh) * 2021-04-22 2023-12-01 Oppo广东移动通信有限公司 资源选取方法、装置、设备及存储介质
WO2023044938A1 (zh) * 2021-09-27 2023-03-30 北京小米移动软件有限公司 一种反馈信息传输方法、装置及存储介质
CN114071760A (zh) * 2021-12-27 2022-02-18 成都爱瑞无线科技有限公司 数据通信方法、装置、电子设备及存储介质
WO2023123310A1 (en) * 2021-12-31 2023-07-06 Qualcomm Incorporated Techniques for enhanced sidelink feedback transmission
CN115314109B (zh) * 2022-04-12 2023-08-01 中国人民解放军战略支援部队航天工程大学 一种用fpga实现的多通道光纤传输
CN117014117A (zh) * 2022-04-29 2023-11-07 展讯通信（上海）有限公司 物理侧链路反馈信道发送方法及装置、可读存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104954976A (zh) * 2015-06-30 2015-09-30 宇龙计算机通信科技(深圳)有限公司 一种资源调度方法、终端、基站及***
US20160073408A1 (en) * 2014-09-04 2016-03-10 Futurewei Technologies, Inc. System and Method for Communicating Resource Allocation for D2D
US20180092122A1 (en) * 2016-09-25 2018-03-29 Ofinno Technologies, Llc Harq process in semi-persistent scheduling

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101753278B (zh) * 2008-12-16 2012-12-12 华为技术有限公司 一种数据接收的反馈方法及终端
CN101867536B (zh) * 2009-04-15 2013-11-06 华为技术有限公司 一种多播广播业务预编码方法、基站及终端
AU2011308576C1 (en) * 2010-10-01 2016-03-03 Interdigital Patent Holdings, Inc. Systems and methods for uplink feedback for high-speed downlink packet access (HSDPA)
EP3883161B1 (en) * 2013-01-21 2024-03-06 Huawei Technologies Co., Ltd. Uplink feedback method, user equipment, and base station
CN105813204B (zh) * 2014-12-31 2020-05-05 中兴通讯股份有限公司 资源池配置方法及设备
US10863492B2 (en) * 2015-07-16 2020-12-08 Qualcomm Incorporated Low latency device-to-device communication
CN107615849B (zh) * 2015-08-12 2020-07-14 华为技术有限公司 上行控制信息发送接收方法、装置及***
KR20170037489A (ko) * 2015-09-25 2017-04-04 주식회사 아이티엘 V2x를 위한 dm-rs 구성 방법 및 그 장치
WO2018085044A1 (en) * 2016-11-02 2018-05-11 Intel IP Corporation User equipment (ue), evolved node-b (enb) and methods for signaling of new radio (nr) physical uplink control channel (pucch) allocations
CN108990162B (zh) * 2016-11-03 2019-08-13 华为技术有限公司 终端设备、存储介质、控制信道检测装置及方法
CN108322414B (zh) * 2017-01-17 2023-01-13 华为技术有限公司 一种反馈信息传输方法及装置
US11153853B2 (en) * 2017-05-05 2021-10-19 Motorola Mobility Llc Sidelink control information indication
US20210314796A1 (en) * 2018-08-07 2021-10-07 Idac Holdings, Inc. Nr v2x - methods for congestion control
CN115765943A (zh) * 2018-12-13 2023-03-07 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
WO2020222565A1 (en) * 2019-05-02 2020-11-05 Samsung Electronics Co., Ltd. Resource allocation method and apparatus in wireless communication system
CN113891462B (zh) * 2020-07-03 2023-06-20 维沃移动通信有限公司 副链路反馈资源配置方法、信息处理方法和设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160073408A1 (en) * 2014-09-04 2016-03-10 Futurewei Technologies, Inc. System and Method for Communicating Resource Allocation for D2D
CN104954976A (zh) * 2015-06-30 2015-09-30 宇龙计算机通信科技(深圳)有限公司 一种资源调度方法、终端、基站及***
US20180092122A1 (en) * 2016-09-25 2018-03-29 Ofinno Technologies, Llc Harq process in semi-persistent scheduling

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "Feature lead summary for agenda item 7.2.4.1.2 Physical layer procedures", 3GPP TSG RAN WG1 MEETING #95 R1-1813938, 16 November 2018 (2018-11-16), XP051494414, DOI: 20200302013815 *
See also references of EP3879915A4
SONY: "Discussion on NR V2X resource allocation mechanism", 3GPP TSG RAN WG1 MEETING #95 R1-1813139, 16 November 2018 (2018-11-16), XP051479405, DOI: 20200302014328A *
VIVO: "Discussion on resource allocation mechanism for NR V2X", 3GPP TSG RAN WG1 #96 R1-1903337, 1 March 2019 (2019-03-01), XP051601014, DOI: 20200302014141PX *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022073214A1 (en) * 2020-10-09 2022-04-14 Nokia Shanghai Bell Co., Ltd. Harq feedback for nr sidelink communication in unlicensed spectrum

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