WO2023116831A1 - Procédé et appareil de sélection de ressources, et terminal - Google Patents

Procédé et appareil de sélection de ressources, et terminal Download PDF

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Publication number
WO2023116831A1
WO2023116831A1 PCT/CN2022/141068 CN2022141068W WO2023116831A1 WO 2023116831 A1 WO2023116831 A1 WO 2023116831A1 CN 2022141068 W CN2022141068 W CN 2022141068W WO 2023116831 A1 WO2023116831 A1 WO 2023116831A1
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Prior art keywords
signal
resource selection
request signal
time
target
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PCT/CN2022/141068
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English (en)
Chinese (zh)
Inventor
王欢
纪子超
彭淑燕
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维沃移动通信有限公司
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Publication of WO2023116831A1 publication Critical patent/WO2023116831A1/fr

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    • 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies

Definitions

  • the present application belongs to the technical field of communications, and in particular relates to a resource selection method, device and terminal.
  • the new air interface (New Radio, NR) secondary link (SideLink, SL, also known as side link or side link or side link) resource allocation method includes autonomous resource selection.
  • the terminal equipment or User Equipment (UE)-B sends a request signal (request signaling) to UE-A, and UE-A feeds back the cooperation to UE-B after receiving the request signaling Signal (coordination signaling), UE-B performs resource selection for transport block (Transport Block, TB) transmission based on coordination information.
  • UE-B sends multiple request signaling and receives multiple coordination signaling, it is difficult to determine the corresponding relationship between multiple request signaling and multiple coordination signaling, and it is difficult to accurately select appropriate resources for TB transmission.
  • Embodiments of the present application provide a resource selection method, device, and terminal, which can solve the problem of how to accurately select appropriate resources for TB transmission.
  • a resource selection method which includes:
  • the first terminal sends a first request signal, where the first request signal is used to request acquisition of resource selection information for target transmission;
  • the first terminal acquires a first cooperation signal associated with the first request signal, where the first cooperation signal carries resource selection information of the target transmission;
  • the first terminal performs resource selection according to the resource selection information of the target transmission indicated by the first coordination signal.
  • a resource selection method including:
  • the second terminal receives at least one request signal sent by the first terminal, and each request signal is used to request resource selection information for a target transmission;
  • the second terminal sends at least one cooperation signal according to the at least one request signal, the cooperation signal carries target information and resource selection information for the target transmission, and the target information is used to indicate that the cooperation signal and the Relationships between request signals.
  • a resource selection device including:
  • a first sending module configured to send a first request signal, where the first request signal is used to request resource selection information for target transmission;
  • a first obtaining module configured to obtain a first cooperation signal associated with the first request signal, where the first cooperation signal carries resource selection information of the target transmission;
  • the first selection module is configured to perform resource selection according to the resource selection information of the target transmission indicated by the first coordination signal.
  • a resource selection device including:
  • the first receiving module is configured to receive at least one request signal sent by the first terminal, each of the request signals is used to request resource selection information for a target transmission;
  • the second sending module is configured to send at least one cooperation signal according to the at least one request signal, the cooperation signal carries target information and resource selection information for the target transmission, and the target information is used to indicate that the cooperation signal is related to The association relationship between the request signals.
  • a terminal in a fifth aspect, includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, the following A step in the method of the first aspect or the second aspect.
  • a terminal including a processor and a communication interface, where the communication interface is used to send a first request signal, where the first request signal is used to request resource selection information for target transmission;
  • the processor is configured to obtain a first cooperation signal associated with the first request signal, the first cooperation signal carrying resource selection information of the target transmission; resource selection according to the target transmission indicated by the first cooperation signal Information for resource selection;
  • the communication interface is configured to receive at least one request signal sent by the first terminal, each of the request signals is used to request resource selection information for a target transmission;
  • the processor is configured to, according to the at least one request signal, Sending at least one cooperation signal through a communication interface, where the cooperation signal carries target information and resource selection information transmitted by the target, and the target information is used to indicate an association relationship between the cooperation signal and the request signal.
  • a seventh aspect provides a resource selection system, including: a first terminal and a second terminal, the first terminal can be used to perform the steps of the resource selection method as described in the first aspect, and the second terminal can be used to Execute the steps of the resource selection method as described in the second aspect.
  • a readable storage medium is provided, and programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by a processor, the steps of the method described in the first aspect are realized, or the steps of the method described in the first aspect are realized, or The steps of the method described in the second aspect.
  • a ninth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and implement the method as described in the first aspect , or implement the method described in the second aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the The steps of the resource selection method, or the steps of implementing the method described in the second aspect.
  • a communication device configured to perform the steps of the resource selection method described in the first aspect, or perform the steps of the resource selection method described in the second aspect.
  • the first terminal sends the first request signal, obtains the first cooperation signal associated with the first request signal, and performs resource selection based on the resource selection information of the target transmission indicated by the first cooperation signal, because
  • the first cooperation signal is a cooperation signal corresponding to the first request signal, that is, the resource selection information carried by the first cooperation signal is the resource selection information for the target transmission indicated by the first request signal, so that based on the first cooperation signal, the The appropriate resource is selected exactly for that target transfer.
  • FIG. 1 shows a structural diagram of a communication system applicable to an embodiment of the present application
  • FIG. 2 shows one of the schematic flow diagrams of the resource selection method in the embodiment of the present application
  • FIG. 3 shows the second schematic flow diagram of the resource selection method in the embodiment of the present application
  • FIG. 4 shows one of the module schematic diagrams of the resource selection device in the embodiment of the present application
  • FIG. 5 shows the second schematic diagram of the modules of the resource selection device in the embodiment of the present application
  • FIG. 6 shows a structural block diagram of a communication device according to an embodiment of the present application.
  • FIG. 7 shows a structural block diagram of a terminal according to an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • NR New Radio
  • the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
  • 6G 6th Generation
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, a super mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) equipment, robot, wearable device (Wearable Device) , Vehicle User Equipment (VUE), Pedestrian User Equipment (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computer, PC), teller machine or self-service machine and other terminal side devices, wearable devices include: smart watches, smart bracelet
  • the network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a wireless access network unit.
  • RAN Radio Access Network
  • the access network equipment may include a base station, a wireless local area network (Wireless Local Area Networks, WLAN) access point or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.
  • the base station may be called a node B, an evolved node B (eNB), an access network Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B, Home Evolution Type B node, Transmitting Receiving Point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in this application In the embodiment, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.
  • the embodiment of this application provides a resource selection method, including:
  • Step 201 The first terminal sends a first request signal, where the first request signal is used to request acquisition of resource selection information for target transmission.
  • the resource selection method of the embodiment of the present application is applicable to the enhanced scheme for resource allocation in related protocols.
  • UE-B sends request signaling to UE-A, and UE-A feeds back coordination to UE-B after receiving the request signaling.
  • Signaling, UE-B performs resource selection for TB transmission based on coordination signaling.
  • At least one of request signaling and coordination signaling can be controlled by second-stage sidelink control information (second-stage Sidelink Control Information, 2nd-stage SCI) or media access control (Media Access Control, MAC) control unit (Control Element , CE) carry.
  • the coordination information can be used to indicate that UE-A prefers resources used by UE-B (ie preferred resource), and/or, it can be used to indicate that UE-A does not prefer resources used by UE-B (ie non-preferred resource).
  • the above-mentioned first request signal may specifically be a request signaling
  • the above-mentioned target transmission may specifically be a transmission for a resource selection.
  • the target transfer is at least one TB transfer.
  • the above resource selection information may include at least one of the following: resource information that the second terminal prefers to use by the first terminal; resource information that the second terminal does not prefer to use by the first terminal.
  • Step 202 The first terminal acquires a first cooperation signal associated with the first request signal, where the first cooperation signal carries resource selection information of the target transmission.
  • the first terminal may receive multiple first coordination signaling.
  • the first terminal may be obtained in an implicit way (such as protocol reservation) or in an explicit way (such as indicated by indication information).
  • a first cooperation signal associated with a request signal, and subsequently, resource selection for the target transmission can be performed based on resource selection information carried in the first cooperation signal.
  • Step 203 The first terminal performs resource selection according to the resource selection information of the target transmission indicated by the first coordination signal.
  • the first terminal sends a first request signal, obtains a first cooperation signal associated with the first request signal, and performs resource selection based on the resource selection information of the target transmission indicated by the first cooperation signal.
  • the first cooperation signal is a cooperation signal corresponding to the first request signal, that is, the resource selection information carried by the first cooperation signal is the resource selection information for the target transmission indicated by the first request signal, so that based on the first cooperation signal, it is possible to accurately Select the appropriate resource for the target transfer.
  • acquiring the first cooperation signal associated with the first request signal by the first terminal includes:
  • the first terminal acquires a first cooperation signal associated with the first request signal according to the target information carried by at least one cooperation signal;
  • the target information is used to indicate at least one of the following:
  • the above-mentioned transmission resource information includes at least one of time-domain resources and frequency-domain resources, and when the target information indicates the transmission resource information of the request signal, it may indicate time-domain resources and/or frequency-domain resources
  • the index information of the request signal indicates the slot index (slot index) of the request signal, or indicates the start (Physical Resource Block, PRB) index of the request signal.
  • the above control information includes transmission parameters or hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) related parameters (such as HARQ process ID, etc.).
  • Hybrid Automatic Repeat reQuest Hybrid Automatic Repeat reQuest, HARQ
  • HARQ process ID HARQ process ID
  • the above target identification can be at least one of request ID (request ID), coordination ID (coordination ID) and logical channel identification (Logical channel ID), for example, the target identification is Logical channel ID.
  • the above-mentioned target information can be specifically indicated through 2nd-stageSCI.
  • the first terminal acquiring the first cooperation signal associated with the first request signal according to the target information carried by at least one cooperation signal includes:
  • the target information carried by the at least one coordination signal determine first target information associated with the first request signal, where the target information includes at least one of the transmission resource information and the control information;
  • the above target information is used to indicate the transmission resource information of the request signal and/or the control information associated with the request signal, and the first terminal obtains the first request signal associated with the first request signal according to the target information.
  • the target information that is, the transmission resource information indicated by the first target information is the transmission resource information of the first request signal, or the control information indicated by the first target information is the control information associated with the first request signal, and
  • the cooperation signal carrying the first target information is used as the first cooperation signal. This manner is to explicitly indicate the first cooperation signal associated with the first request signal.
  • the first terminal acquiring the first cooperation signal associated with the first request signal according to the target information carried by at least one cooperation signal includes:
  • a cooperation signal carrying the same target identifier as the first request signal is used as the first cooperation signal.
  • the above-mentioned target information is used to indicate the target identifier carried by the cooperation signal, and the manner of indicating the first cooperation signal associated with the first request signal by means of indicating the target identifier through the target information is an explicit manner.
  • acquiring the first cooperation signal associated with the first request signal by the first terminal includes:
  • the target time period refers to a time period between the first time and the second time
  • the first time is the sending time of the first request signal
  • the second time is T1+a preset time interval
  • T1 is associated with the sending time of the first request signal.
  • the above T1 is the time when the first request signal is transmitted for the first time or the time when the first request signal is transmitted for the n1th time or the time when the first request signal is transmitted for the last time, or the physical secondary link shared channel is transmitted for the request signal (Physical SideLink Shared Channel, PSSCH) associated physical secondary link feedback channel (Physical SideLink Feedback Channel, PSFCH) at the moment;
  • the above preset time interval is predetermined by the protocol or (pre) configured or indicated by the first terminal of.
  • the foregoing preset time interval may be determined according to a packet delay budget (Packet Delay Budget, PDB).
  • the above-mentioned preset time interval may be a delay budget (Packet Delay Budget, PDB) used when the second terminal selects the first cooperative signal transmission resource, and the second terminal receives the first request signal, and sends a request to the first terminal accordingly. Feedback the first cooperation signal.
  • PDB Packet Delay Budget
  • the second time is set to ensure that the cooperation signal received by the first terminal within the target time period is used as the first cooperation signal. In this way, only one cooperation signal is received within the target time period. This manner is a manner of implicitly indicating the first coordination signal.
  • the first terminal after the first terminal sends the first request signal, it further includes:
  • the first terminal sends a second request signal, and the sending time of the second request signal is after the second time, or, the sending time of the second request signal is after the receiving time of the first cooperation signal .
  • the first request signal may specifically be a next request signal sent after the first terminal sends the first request signal.
  • the first terminal when the first terminal receives the last cooperation signal or the transmission of the last cooperation signal exceeds the preset packet delay budget (Packet Delay Budget, PDB), the first terminal can send a new request signal, So that there is always a one-to-one correspondence between the request signal and the cooperation signal.
  • PDB Packet Delay Budget
  • a typical value of the delay budget is equal to the delay budget used when the second terminal selects the first coordinated signal transmission resource.
  • acquiring the first cooperation signal associated with the first request signal by the first terminal includes:
  • the coordination signal with a smaller resource number is combined with the resource number (time domain resource number or frequency domain resource number) Request signal to associate.
  • This manner also belongs to the manner of implicitly determining the first coordination signal.
  • acquiring the first cooperation signal associated with the first request signal by the first terminal includes:
  • the preset conditions include at least one of the following:
  • the receiving delay is less than or equal to the preset receiving delay, for example, the coordinated signal received within the preset receiving delay is the first coordinated signal;
  • the selected resources corresponding to the carried resource selection information meet the requirements indicated by the first terminal (the first request signal), for example, the sub-channel size (sub-channel size) meets the requirements indicated by the first request signal, and the time domain position meets the requirements indicated by the first terminal (first request signal).
  • the first request signal for example, the sub-channel size (sub-channel size) meets the requirements indicated by the first request signal, and the time domain position meets the requirements indicated by the first terminal (first request signal).
  • the above method of using the cooperation signal satisfying the preset condition as the first cooperation signal associated with the first request signal belongs to the method of implicitly determining the first cooperation signal.
  • the request signal and/or the cooperation signal carry at least one of the following:
  • the first terminal sends a first request signal, obtains a first cooperation signal associated with the first request signal, and performs resource selection based on the resource selection information of the target transmission indicated by the first cooperation signal.
  • the first cooperation signal is a cooperation signal corresponding to the first request signal, that is, the resource selection information carried by the first cooperation signal is the resource selection information for the target transmission indicated by the first request signal, so that based on the first cooperation signal, it is possible to accurately Select the appropriate resource for the target transfer.
  • the embodiment of the present application also provides a resource selection method, including:
  • Step 301 The second terminal receives at least one request signal sent by the first terminal, and each request signal is used to request resource selection information for a target transmission.
  • Step 302 The second terminal sends at least one cooperation signal according to the at least one request signal, the cooperation signal carries target information and resource selection information for the target transmission, and the target information is used to indicate the cooperation signal The association relationship with the request signal.
  • the second terminal sends a cooperation signal according to at least one request signal
  • the cooperation signal carries target information for indicating the association relationship between the cooperation signal and the request signal and resource selection information for the target transmission.
  • the target information enables the first terminal to select the first cooperation signal associated with the first request signal sent by it, and perform resource selection based on the resource selection information carried in the first cooperation signal, thereby ensuring that the first terminal can accurately transmit Choose the right resource.
  • the target information includes at least one of the following:
  • the target information has been described in the above-mentioned embodiment of the method on the first terminal side, and will not be repeated here.
  • the method before the second terminal sends at least one cooperation signal, the method further includes:
  • the location information includes at least one of the first moment when the location association starts and the second moment when the location relationship ends, and the first resource selection window is used to select and send the cooperation Signal transmission resources.
  • the foregoing first resource selection window may also be described as a resource selection window of the coordination signal.
  • the first moment includes at least one of the following:
  • the earliest time corresponding to the start position of the first resource selection window corresponds to multiple times, and the earliest time among them is selected as the first time;
  • the moment when the MAC layer of the first terminal triggers resource selection (may be equivalent to the position of slot n in related protocols such as 38.214);
  • the earliest time at which the MAC layer of the first terminal triggers resource selection here, the time at which the MAC layer triggers resource selection corresponds to multiple time points, and the earliest time point is selected as the first time point.
  • the category at the first moment can be determined based on the way the second terminal acquires the request signal, and the way the second terminal acquires the request signal includes at least acquiring and/or demodulating the 2nd SCI Or get it by demodulating MAC CE. In this way, more flexibility is provided for the MAC layer to determine the resource selection window.
  • the physical layer directly determines the start position of the first resource selection window; if the second terminal obtains the request signal by demodulating the MAC CE, the MAC layer determines slot n The earliest time of , the MAC layer independently determines the time of slot n and notifies the PHY layer, and the PHY layer determines the starting position of the first resource selection window according to slot n.
  • the first moment is determined according to at least one of the following:
  • the first item the transmission time of the request signal, for example, the time after x time units of the request signal transmission time is the first time, and the x time units are based on the decoding process time of the request signal of the second terminal (request signaling decoding processing time) is determined or determined based on a preset request signal decoding process time, and/or, the x time units are based on resource selection preparation time (resource selection preparation time);
  • Second item the first start moment indicated by the request signal.
  • the latest or earliest time among the first item and the second item above may be determined as the first moment.
  • the first start time may specifically be a specific start time indicated by the request signal for the resource selection of the cooperation signal, or a unified start time indicated for the resource selection of the cooperation signal and the preferred resource.
  • a fixed code point is set in the first start moment to indicate that the transmission moment of the request signal is the first moment.
  • the manner of determining the first moment is associated with the type of the first moment.
  • the second moment includes at least one of the following:
  • the first item the time corresponding to the end position of the first resource selection window
  • the second item the latest time corresponding to the end position of the first resource selection window (equivalent to the position of slot n+remaining PDB in related agreements such as 38.214), where the end position of the first resource selection window corresponds to multiple times , select the latest moment as the second moment above;
  • the third item the target time after the time when resource reselection is triggered
  • the fourth item the maximum value of the target time after the time when resource reselection is triggered
  • the target time is the time corresponding to n time units after the time when the resource selection is triggered by the MAC layer, and the n time units are determined according to the time length of the reserved data packet delay budget remaining PDB, for example , according to the upper limit of the remaining PDB to determine the maximum value of the above target time.
  • the type at the second moment (the above four items correspond to the four types) is determined based on the manner in which the second terminal acquires the request signal, and the manner in which the second terminal acquires the request signal includes at least obtaining by demodulating 2nd SCI and/or Obtained by demodulating MAC CE.
  • the second moment is determined according to at least one of the following:
  • the first item the transmission time of the request signal, for example, the second time is the time after y time units from the transmission time of the request signal, and the y1 time units are determined based on at least one of the following: the request of the second terminal
  • the signal decoding process time (request signaling decoding processing time), the decoding process time determination based on the preset request signal, the preparation time based on resource selection (resource selection preparation time determination), the length of the first resource selection window and the cooperation signal feedback
  • the delay requirement is agreed by the protocol or is (pre)configured or determined based on the rules agreed by the protocol or indicated by the first terminal;
  • the second item the first start time or the first end time indicated by the request signal, and the first end time is the end time indicated by the resource selection of the request signal as a cooperation signal and/or preferred resource; optionally, in the above first
  • a fixed code point is set in the end time to indicate that the first end time is the above-mentioned second time.
  • the second time is the time y2 time units after the first start time, and the y2 time units are determined based on at least one of the following: the length of the coordination signal resource selection window, the above-mentioned delay requirement for the coordination signal feedback .
  • the third item the location of the selected resource corresponding to the resource selection information, for example, the second moment is determined based on the location of the preferred resource, for example, the moment of z1 time units before the moment where the first preferred resource is located is the second moment
  • the z1 time units are determined based on the coordination signal decoding time of the first terminal or the preset coordination signal decoding time, and for another example, the first z1 time units at the time corresponding to the start position of the second resource selection window are the first z1 time units two moments
  • the fourth item the start position of the second resource selection window of the selected resource corresponding to the resource selection information.
  • the latest or earliest time among the above-mentioned first item, second item, third item and fourth item is determined as the second moment.
  • the manner of determining the second moment is associated with the type of the second moment.
  • the method before the second terminal sends at least one cooperation signal, the method further includes:
  • the second resource selection window is used to select and send the resource Select the transmission resource for the information.
  • the second resource selection window can also be described as a resource selection window of preferred resource.
  • the third moment includes at least one of the following:
  • the earliest moment corresponding to the starting position of the second resource selection window (can be equivalent to the position of slot n in related agreements such as 38.214), here, the starting position of the second resource selection window corresponds to multiple times, and the earliest moment is selected as the third moment above;
  • the earliest time when the MAC layer of the first terminal triggers resource selection here, the time when the MAC layer triggers resource selection corresponds to multiple time points, and the earliest time point is selected as the third time point.
  • the category at the third moment may be determined based on the manner in which the second terminal acquires the request signal, and the manner in which the second terminal acquires the request signal includes at least acquiring and/or demodulating the 2nd SCI Or get it by demodulating MAC CE.
  • the third moment is determined according to at least one of the following:
  • the first item the transmission moment of the request signal, for example, the time after x time units of the request signal transmission time is the third moment, and the x time units are determined based on at least one of the following: the decoding process of the request signal of the second terminal time (request signaling decoding processing time) or the decoding process time based on the preset request signal; the x is based on the resource selection preparation time (resource selection preparation time); the time or the preset time of the first terminal's cooperative signal decoding process The time of the cooperative signal decoding process is set; the length of the cooperative signal resource selection window and the delay requirement of the cooperative signal feedback.
  • the delay requirement is stipulated in the protocol or (pre)configured or determined based on a rule stipulated in the protocol or indicated by the first terminal;
  • the unified start time of the indication, the second end time may specifically be the end time indicated by the resource selection of the request signal as a cooperation signal and/or preferred resource; for example, the time x time units after the transmission time of the request signal is the first time
  • x time units are determined based on at least one of the following: the determination of the decoding process time (request signaling decoding processing time) of the request signal of the second terminal or the determination of the decoding process time based on the preset request signal; the preparation time for resource selection (resource selection preparation time); the length of the cooperative signal resource selection window; the delay requirement for cooperative signal feedback.
  • the third item the position of the transmission resource corresponding to the coordination signal, for example, the time z2 time units after the time of the (last) coordination signaling transmission resource (coordination signaling transmission resource) is the third time.
  • the z2 time unit is determined based on the decoding time of the coordination signal of the first terminal or based on a preset decoding time of the coordination signal.
  • z3 time units before the end of the coordination signaling transmission resource resource selection window are the third time.
  • the z3 time units are determined based on the decoding time of the coordination signal of the first terminal or based on the preset decoding time of the coordination signal.
  • the third moment may be determined according to the earliest or latest moment among the first item, the second item, and the third item, and the determination method of the third moment is associated with the type of the third moment.
  • a fixed code point is set at the second starting moment to indicate that the transmission moment of the request signal is the third moment.
  • the fourth moment includes at least one of the following:
  • the latest time corresponding to the end position of the second resource selection window corresponds to multiple times, and the latest time is selected as the fourth time;
  • the target time after the time when resource reselection is triggered
  • the target time is the time corresponding to n time units after the time when the resource selection is triggered by the MAC layer, and the n time units are determined according to the duration of the remaining PDB, for example, according to the upper limit of the remaining PDB Value to determine the maximum value of the above target moment, n is greater than or equal to 0.
  • the category at the fourth moment (the above four items correspond to the four categories) is determined based on the manner in which the second terminal acquires the request signal, and the manner in which the second terminal acquires the request signal includes at least obtaining by demodulating 2nd SCI and/or Obtained by demodulating MAC CE.
  • the fourth moment is determined according to at least one of the following:
  • the second end time may specifically be the end time indicated by the request signal being a cooperation signal and/or resource selection of the preferred resource.
  • the second terminal sends a cooperation signal according to at least one request signal
  • the cooperation signal carries target information for indicating the association relationship between the cooperation signal and the request signal and resource selection information for the target transmission.
  • the target information enables the first terminal to select the first cooperation signal associated with the first request signal sent by it, and perform resource selection based on the resource selection information carried in the first cooperation signal, thereby ensuring that the first terminal can accurately transmit Choose the right resource.
  • the resource selection method provided in the embodiment of the present application may be executed by a resource selection device.
  • the method for resource selection performed by the resource selection device is taken as an example to describe the resource selection device provided in the embodiment of the present application.
  • the embodiment of the present application also provides a resource selection device 400, including:
  • the first sending module 401 is configured to send a first request signal, where the first request signal is used to request resource selection information for target transmission;
  • the first obtaining module 402 is configured to obtain a first cooperation signal associated with the first request signal, where the first cooperation signal carries resource selection information of the target transmission;
  • the first selection module 403 is configured to perform resource selection according to the resource selection information of the target transmission indicated by the first coordination signal.
  • the first obtaining module is configured to obtain a first cooperation signal associated with the first request signal according to target information carried by at least one cooperation signal;
  • the target information is used to indicate at least one of the following:
  • the first acquisition module includes:
  • the first determining submodule is configured to determine first target information associated with the first request signal in the target information carried by the at least one coordination signal, where the target information includes the transmission resource information and the control at least one of the information;
  • the second determining submodule is configured to use the cooperation signal carrying the first target information as the first cooperation signal associated with the first request signal.
  • the first acquiring module is configured to use a cooperation signal carrying the same target identifier as the first request signal as the first cooperation signal.
  • the first acquiring module is configured to use the cooperation signal received within the target time period as the first cooperation signal associated with the first request signal;
  • the target time period refers to a time period between the first time and the second time
  • the first time is the sending time of the first request signal
  • the second time is T1+a preset time interval
  • T1 is associated with the sending time of the first request signal.
  • the device of the embodiment of the present application further includes:
  • the second sending module is configured to send a second request signal after the first sending module sends the first request signal, and the sending time of the second request signal is after the second time, or, the second request signal The sending time of is after the receiving time of the first coordination signal.
  • the first acquisition module includes:
  • the first acquisition submodule is configured to acquire the target first resource associated with the target second resource number of the first request signal according to the association relationship between the first resource number of the cooperation signal and the second resource number of the request signal serial number;
  • the third determining submodule is configured to use the cooperation signal corresponding to the target first resource number as the first cooperation signal associated with the first request signal.
  • the first acquiring module is configured to use a cooperation signal satisfying a preset condition as a first cooperation signal associated with the first request signal;
  • the preset conditions include at least one of the following:
  • the receiving delay is less than or equal to the preset receiving delay
  • the selected resources corresponding to the carried resource selection information meet the requirements indicated by the first terminal;
  • the device in this embodiment of the present application sends a first request signal, acquires a first cooperation signal associated with the first request signal, and performs resource selection based on the resource selection information of the target transmission indicated by the first cooperation signal, because the first
  • the cooperation signal is a cooperation signal corresponding to the first request signal, that is, the resource selection information carried by the first cooperation signal is the resource selection information for the target transmission indicated by the first request signal, so that based on the first cooperation signal, it can be accurately
  • the target transport selects the appropriate resource.
  • the embodiment of the present application also provides a resource selection device 500, including:
  • the first receiving module 501 is configured to receive at least one request signal sent by the first terminal, each of the request signals is used to request resource selection information for a target transmission;
  • the second sending module 502 is configured to send at least one cooperation signal according to the at least one request signal, the cooperation signal carries target information and resource selection information for the target transmission, and the target information is used to indicate the cooperation signal The association relationship with the request signal.
  • the target information includes at least one of the following:
  • the device of the embodiment of the present application further includes:
  • the first determining module is configured to determine the location information of the first resource selection window before the second sending module sends at least one cooperation signal, where the location information includes the first moment of starting location association and the second moment of ending location relationship At least one item of , the first resource selection window is used to select a transmission resource for sending the coordination signal.
  • the first moment includes at least one of the following:
  • the first moment is determined according to at least one of the following:
  • the second moment includes at least one of the following:
  • the target time after the time when resource reselection is triggered
  • the target time is a time corresponding to n time units after the time when resource selection is triggered by the MAC layer, and the n time units are determined according to the time length of the reserved data packet delay budget remaining PDB.
  • the second moment is determined according to at least one of the following:
  • the resource selection information corresponds to the start position of the second resource selection window for resource selection.
  • the device of the embodiment of the present application further includes:
  • the second determining module is configured to determine the location information of the second resource selection window before the second sending module sends at least one cooperation signal, where the location information includes the third moment when the location association starts and the fourth moment when the location relationship ends At least one item of , the second resource selection window is used to select a transmission resource for sending the resource selection information.
  • the third moment includes at least one of the following:
  • the third moment is determined according to at least one of the following:
  • the location of the transmission resource corresponding to the coordination signal is the location of the transmission resource corresponding to the coordination signal.
  • the fourth moment includes at least one of the following:
  • the target time after the time when resource reselection is triggered
  • the target time is a time corresponding to n time units after the time when the MAC layer triggers resource selection, and the n time units are determined according to the duration of the remaining PDB.
  • the fourth moment is determined according to at least one of the following:
  • a cooperation signal is sent according to at least one request signal, and the cooperation signal carries target information for indicating the association relationship between the cooperation signal and the request signal and resource selection information transmitted by the target.
  • the information can enable the first terminal to select the first cooperation signal associated with the first request signal sent by it, and perform resource selection based on the resource selection information carried in the first cooperation signal, thereby ensuring that the first terminal can accurately select a suitable resource for the target transmission. resource.
  • the resource selection apparatus in this embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip.
  • the electronic device may be a terminal, or other devices other than the terminal.
  • the terminal may include, but not limited to, the types of terminal 11 listed above, and other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in this embodiment of the present application.
  • NAS Network Attached Storage
  • the resource selection device provided in the embodiment of the present application can realize each process realized by the method embodiments in FIG. 2 to FIG. 3 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • this embodiment of the present application also provides a communication device 600, including a processor 601 and a memory 602, and the memory 602 stores programs or instructions that can run on the processor 601, such as , when the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, each step of the above resource selection method embodiment can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, and the communication interface is used to send a first request signal, wherein the first request signal is used to request acquisition of resource selection information for target transmission; the acquisition is related to the A first cooperation signal associated with the first request signal, where the first cooperation signal carries resource selection information of the target transmission; the processor is configured to perform resource selection according to the resource selection information of the target transmission indicated by the first cooperation signal;
  • the communication interface is configured to receive at least one request signal sent by the first terminal, and each of the request signals is used to request acquisition of resource selection information for a target transmission; according to the at least one request signal, at least one cooperation signal is sent, so The cooperation signal carries target information and resource selection information of the target transmission, and the target information is used to indicate an association relationship between the cooperation signal and the request signal.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 7 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710. At least some parts.
  • the terminal 700 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 710 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 704 may include a graphics processing unit (Graphics Processing Unit, GPU) 7041 and a microphone 7042, and the graphics processor 7041 is used by the image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
  • the display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072 .
  • the touch panel 7071 is also called a touch screen.
  • the touch panel 7071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.
  • the radio frequency unit 701 may transmit the downlink data from the network side device to the processor 710 for processing after receiving the downlink data; in addition, the radio frequency unit 701 may send uplink data to the network side device.
  • the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 709 can be used to store software programs or instructions as well as various data.
  • the memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playing function, image playback function, etc.), etc.
  • memory 709 may include volatile memory or nonvolatile memory, or, memory 709 may include both volatile and nonvolatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM erasable programmable read-only memory
  • Electrical EPROM Electrical EPROM
  • EEPROM electronically programmable Erase Programmable Read-Only Memory
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synch link DRAM , SLDRAM) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM Double Data Rate SDRAM
  • DDRSDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • Synch link DRAM , SLDRAM
  • Direct Memory Bus Random Access Memory Direct Rambus
  • the processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 710 .
  • the radio frequency unit 701 is configured to send a first request signal, wherein the first request signal is used to request resource selection information for target transmission;
  • the processor 710 is configured to acquire a first cooperation signal associated with the first request signal, where the first cooperation signal carries resource selection information of the target transmission; resources for the target transmission indicated by the first cooperation signal Select information to select resources.
  • the first request signal is sent, the first cooperation signal associated with the first request signal is obtained, and resource selection is performed based on the resource selection information of the target transmission indicated by the first cooperation signal. Since the first cooperation The signal is a cooperation signal corresponding to the first request signal, that is, the resource selection information carried by the first cooperation signal is the resource selection information for the target transmission indicated by the first request signal, so that based on the first cooperation signal, the The target transfer selects the appropriate resource.
  • the processor 710 is configured to acquire a first cooperation signal associated with the first request signal according to target information carried in at least one cooperation signal;
  • the target information is used to indicate at least one of the following:
  • the processor 710 is configured to determine first target information associated with the first request signal in the target information carried by the at least one coordination signal, where the target information includes the transmission resource information and at least one item of the control information; using the cooperation signal carrying the first target information as the first cooperation signal associated with the first request signal.
  • the processor 710 is configured to use a cooperation signal carrying the same target identifier as the first request signal as the first cooperation signal.
  • the processor 710 is configured to use the cooperation signal received within the target time period as the first cooperation signal associated with the first request signal;
  • the target time period refers to a time period between the first time and the second time
  • the first time is the sending time of the first request signal
  • the second time is T1+a preset time interval
  • T1 is associated with the sending time of the first request signal.
  • the radio frequency unit 701 is configured to send a second request signal after sending the first request signal, and the sending time of the second request signal is after the second time, or the second request signal The sending time of is after the receiving time of the first coordination signal.
  • the processor 710 is configured to acquire the target second resource number associated with the first request signal according to the association relationship between the first resource number of the cooperation signal and the second resource number of the request signal. target first resource number;
  • the processor 710 is configured to use a cooperation signal satisfying a preset condition as a first cooperation signal associated with the first request signal;
  • the preset conditions include at least one of the following:
  • the receiving delay is less than or equal to the preset receiving delay
  • the selected resources corresponding to the carried resource selection information meet the requirements indicated by the first terminal;
  • the first request signal is sent, the first cooperation signal associated with the first request signal is obtained, and resource selection is performed based on the resource selection information of the target transmission indicated by the first cooperation signal. Since the first cooperation The signal is a cooperation signal corresponding to the first request signal, that is, the resource selection information carried by the first cooperation signal is the resource selection information for the target transmission indicated by the first request signal, so that based on the first cooperation signal, the The target transfer selects the appropriate resource.
  • the radio frequency unit 701 is configured to receive at least one request signal sent by the first terminal, each of the request signals is used to request resource selection information for a target transmission;
  • the processor 710 is configured to send at least one cooperation signal through the radio frequency unit 701 according to the at least one request signal, where the cooperation signal carries target information and resource selection information for the target transmission, and the target information is used to indicate the The association relationship between the cooperation signal and the request signal.
  • the target information includes at least one of the following:
  • the processor 710 is further configured to determine location information of the first resource selection window, where the location information includes at least one of a first moment when the location association starts and a second moment when the location relationship ends, the The first resource selection window is used to select a transmission resource for sending the coordination signal.
  • the first moment includes at least one of the following:
  • the first moment is determined according to at least one of the following:
  • the second moment includes at least one of the following:
  • the target time after the time when resource reselection is triggered
  • the target time is the time corresponding to n time units after the time when the resource selection is triggered by the MAC layer, and the n time units are determined according to the duration of the reserved data packet delay budget remaining PDB.
  • the second moment is determined according to at least one of the following:
  • the resource selection information corresponds to the start position of the second resource selection window for resource selection.
  • the processor 710 is further configured to determine location information of the second resource selection window, where the location information includes at least one of a third moment when the location association starts and a fourth moment when the location relationship ends, the The second resource selection window is used to select a transmission resource for sending the resource selection information.
  • the third moment includes at least one of the following:
  • the third moment is determined according to at least one of the following:
  • the location of the transmission resource corresponding to the coordination signal is the location of the transmission resource corresponding to the coordination signal.
  • the fourth moment includes at least one of the following:
  • the target time after the time when resource reselection is triggered
  • the target time is a time corresponding to n time units after the time when the MAC layer triggers resource selection, and the n time units are determined according to the duration of the remaining PDB.
  • the fourth moment is determined according to at least one of the following:
  • the first request signal is sent, the first cooperation signal associated with the first request signal is obtained, and resource selection is performed based on the resource selection information of the target transmission indicated by the first cooperation signal. Since the first cooperation The signal is a cooperation signal corresponding to the first request signal, that is, the resource selection information carried by the first cooperation signal is the resource selection information for the target transmission indicated by the first request signal, so that based on the first cooperation signal, the The target transfer selects the appropriate resource.
  • the embodiment of the present application also provides a readable storage medium.
  • the readable storage medium stores programs or instructions.
  • the program or instructions are executed by the processor, the various processes in the above resource selection method embodiments can be realized, and the same To avoid repetition, the technical effects will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk, and the like.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above resource selection method embodiment
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run programs or instructions to implement the above resource selection method embodiment
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the embodiment of the present application further provides a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the above resource selection method embodiment
  • the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the above resource selection method embodiment
  • the embodiment of the present application also provides a resource selection system, including: a first terminal and a second terminal, the first terminal can be used to perform the steps of the above resource selection method applied to the first terminal, the first terminal The second terminal can be used to execute the above-mentioned steps of the resource selection method applied to the second terminal.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente demande se rapporte au domaine technique des communications. Sont divulgués un procédé et un appareil de sélection de ressources, ainsi qu'un terminal. Le procédé de sélection de ressources selon des modes de réalisation de la présente demande comprend les étapes suivantes : un premier terminal envoie une première signalisation de demande, la première signalisation de demande étant utilisée pour demander d'acquérir des informations de sélection de ressources pour une transmission cible ; le premier terminal acquiert une première signalisation de coordination associée à la première signalisation de demande, la première signalisation de coordination transportant les informations de sélection de ressources pour la transmission cible ; le premier terminal effectue une sélection de ressources selon les informations de sélection de ressources pour la transmission cible indiquées par la première signalisation de coordination.
PCT/CN2022/141068 2021-12-23 2022-12-22 Procédé et appareil de sélection de ressources, et terminal WO2023116831A1 (fr)

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