WO2024094073A1 - Procédé de détermination de ressources de transmission candidates, et appareil associé - Google Patents

Procédé de détermination de ressources de transmission candidates, et appareil associé Download PDF

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Publication number
WO2024094073A1
WO2024094073A1 PCT/CN2023/129115 CN2023129115W WO2024094073A1 WO 2024094073 A1 WO2024094073 A1 WO 2024094073A1 CN 2023129115 W CN2023129115 W CN 2023129115W WO 2024094073 A1 WO2024094073 A1 WO 2024094073A1
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Prior art keywords
resource
time domain
transmission
communication device
domain units
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PCT/CN2023/129115
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English (en)
Chinese (zh)
Inventor
黎超
刘云
何泓利
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华为技术有限公司
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Publication of WO2024094073A1 publication Critical patent/WO2024094073A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and more specifically, to a method and related apparatus for determining candidate transmission resources.
  • An embodiment of the present application provides a method for determining candidate transmission resources, which can select appropriate transmission resources for data that needs to be transmitted continuously.
  • an embodiment of the present application provides a method for determining candidate transmission resources, the method comprising: a first communication device determines a first resource in a selection window, the first resource comprising M first time domain units that are continuous in the time domain, where M is an integer greater than or equal to 2; the first communication device determines a second resource of a second communication device in a perception window, the second resource comprising N second time domain units, wherein a third resource overlaps with the first resource, the third resource is a reserved resource corresponding to the second resource in the selection window, and N is an integer greater than or equal to 1, and when N is greater than 1, the N second time domain units are continuous in the time domain, and the third resource comprises L third time domain units, where L is an integer greater than or equal to 1; the first communication device determines a candidate resource for continuous transmission in the selection window based on the first resource, the second resource and the third resource.
  • the candidate resources determined in the above technical solution can be used to transmit data transmitted on continuous time domain units. Transmitting data jointly through multiple time domain units can achieve a larger transmission bandwidth, lower transmission delay, and a more reliable side link.
  • the first communication device determines a candidate resource for continuous transmission in the selection window based on the first resource, the second resource and the third resource, including: the first communication device determines a signal quality based on the second resource; the first communication device determines the candidate resource for continuous transmission in the selection window based on the signal quality, the first resource and the third resource.
  • the first communication device determines the signal quality based on the second resource, including: the first communication device determines that the signal quality is any one of the following: the maximum value of the RSRP of N REF second time domain units among the N second time domain units, the average value of the RSRP of the N REF second time domain units, the RSRP of the first second time domain unit among the N REF second time domain units, the RSRP of the last second time domain unit among the N REF second time domain units, or the RSRP of the second time domain unit with the highest transmission priority among the N REF second time domain units, wherein the reserved time domain units of the N REF second time domain units in the selection window overlap with the M first time domain units, and N REF is an integer greater than or equal to 1 and less than or equal to N.
  • the above technical solution takes resource overlap into consideration when determining signal quality. Therefore, the signal quality determined by the above technical solution can better reflect the signal quality of overlapping resources, thereby more accurately determining whether overlapping resources need to be excluded.
  • the first communication device determines the signal quality based on the second resource, including: the first communication device determines that the signal quality is any one of the following: the maximum value of the RSRP of the N second time domain units, the average value of the RSRP of the N second time domain units, the RSRP of the first second time domain unit of the N second time domain units, the RSRP of the last second time domain unit of the N second time domain units, and the RSRP of the second time domain unit with the highest transmission priority among the N second time domain units.
  • the above technical solution takes into account all signal qualities of the second resource when determining the signal quality. More resources are considered when determining signal quality. Therefore, the signal quality determined by the above technical solution may be higher. The available resources obtained in the end may be cleaner and receive less interference.
  • the first communication device determines the candidate resource for continuous transmission in the selection window based on the signal quality, the first resource and the third resource, including: when the signal quality is greater than a signal quality threshold, the first communication device determines the candidate resource for continuous transmission in the selection window based on the L third time domain units and the M first time domain units; when the signal quality is less than or equal to the signal quality threshold, the first communication device determines in the selection window that the candidate resource for continuous transmission includes the first resource.
  • the first communication device determines the candidate resource for continuous transmission in the selection window based on the L third time domain units and the M first time domain units, including: when the first communication device determines that there are M1 time domain units overlapping between the M first time domain units and the L third time domain units and the overlapping time domain units are the first M1 time domain units or the last M1 time domain units among the M first time domain units, the time-frequency resource including the overlapping time domain unit in the first resource is excluded from the candidate resources, and M1 is an integer greater than or equal to 1 and less than M.
  • the above technical solution only excludes the overlapping resources, so as to retain as many available resources as possible and reduce resource waste.
  • the first communication device determines the candidate resource for continuous transmission in the selection window based on the L third time domain units and the M first time domain units, including: when the first communication device determines that the M first time domain units overlap with one of the L third time domain units and the overlapping time domain unit is located at a specified position, the first resource is excluded from the candidate resources.
  • the first communication device determines the candidate resource for continuous transmission in the selection window based on the L third time domain units and the M first time domain units, including: the first communication device determines that the M first time domain units overlap with at least one time domain unit of the L third time domain units; the first communication device determines that the M first time domain units include at least one group of continuous time domain units in addition to the at least one time domain unit, and each group of continuous time domain units in the at least one group of continuous time domain units includes at least M REF1 continuous time domain units, and M REF1 is an integer greater than or equal to 2 and less than M; the first communication device determines that the candidate resources include the time-frequency resources in the first resources that include the at least one group of continuous time domain units.
  • the above technical solution only excludes the overlapping resources, so as to retain as many available resources as possible and reduce resource waste.
  • the method also includes: when the number of candidate resources determined in the selection window is less than a candidate resource number threshold, the first communication device reselects candidate resources based on resources containing M’ time domain units that are continuous in the time domain, where M’ is an integer greater than or equal to 2 and less than M.
  • the candidate resources can be reselected with a smaller number of continuous resources.
  • Using a smaller number of continuous time domain resources to select candidate resources may result in more available resources. Therefore, the above technical solution can increase the number of available resources when there are fewer available resources.
  • the first communication device reselects the candidate resource in the selection window, including: the first communication device determines a fourth resource in the selection window, the fourth resource includes M’ fourth time domain units that are continuous in the time domain, and M’ is an integer greater than or equal to 2 and less than M; the first communication device determines a fifth resource of the third communication device in the perception window, the fifth resource includes N’ fifth time domain units, wherein the sixth resource overlaps with the fourth resource, the sixth resource is a reserved resource corresponding to the fifth resource in the selection window, and N’ is an integer greater than or equal to 1.
  • the first communication device determines the reselected resource for continuous transmission in the selection window based on the fourth resource, the fifth resource and the sixth resource.
  • the method further includes: the first communication device determines the number of available subchannels and/or resource sets of the candidate resource.
  • the method further includes: when the first communication device determines that the number of candidate resources is less than a number threshold, sending part of the data to be sent.
  • the method further includes: the first communication device compares the transmission priority of the first communication device, the transmission priority of the second communication device, and a priority threshold; the first communication device determines that a seventh resource is preempted when it is determined that the transmission priority of the second resource is higher than the transmission priority of the first communication device, and/or the transmission priority of the second resource is higher than the priority threshold, wherein the seventh resource is a resource indicated by a higher layer, the candidate resources do not include the seventh resource, the priority threshold is determined according to the data transmission mode of the second communication device and the data transmission mode of the first communication device, and the second The data transmission mode of the communication device is continuous time domain unit or single time domain unit transmission, and the data transmission mode of the first communication device is continuous time domain unit or single time domain unit transmission.
  • the method also includes: the first communication device receives first priority indication information sent by the second communication device, and the first priority indication information is used to indicate the transmission priority of the second resource.
  • the method also includes: the first communication device receives second priority indication information sent by the second communication device, and the second priority indication information is used to indicate the transmission priority of each data sent using the second resource.
  • the overlapping of the third resource and the first resource includes: at least one first time domain unit in the first resource overlaps with at least one third time domain unit in the third resource.
  • the third resource overlaps with the first resource, including: at least one first frequency domain unit in the first resource overlaps with at least one third frequency domain unit in the third resource.
  • an embodiment of the present application provides a communication method, comprising: determining at least one first transmission parameter set based on M transmission parameter sets, wherein the M transmission parameter sets are respectively transmission parameter sets of M data to be sent, each transmission parameter set in the M transmission parameter sets includes N transmission parameters, the M data to be sent are data to be sent on continuous time domain units, the at least one first transmission parameter set contains the N transmission parameters, N is a positive integer greater than or equal to 1, and M is a positive integer greater than or equal to 2; determining candidate resources based on the at least one first transmission parameter set.
  • the above technical solution can determine one or more sets of unified parameters for multiple data that need to be transmitted continuously, so that it is convenient to select resources according to these parameters.
  • the method further includes: sending part or all of the M data to be sent in continuous time units according to the candidate resource.
  • determining at least one first transmission parameter set based on M transmission parameter sets includes: determining at least one first transmission parameter set based on M first transmission parameters, wherein the M first transmission parameters respectively belong to the M transmission parameter sets.
  • the above technical solution only considers the same transmission parameter in each transmission parameter set when determining the first transmission parameter set. Therefore, the above technical solution can select the first transmission parameter set more quickly.
  • the at least one first transmission parameter set is determined based on the M first transmission parameters, including: determining the optimal value among the M first transmission parameters; determining that the at least one first transmission parameter set is a group or more transmission parameter sets in the M transmission parameter sets that include the optimal value.
  • the above technical solution selects a transmission parameter set including an optimal value of the first transmission parameter when selecting the target transmission parameter. In this way, multiple data that need to be transmitted in continuous time units can have the optimal first transmission parameter.
  • the first transmission parameter is any one of the sending priority, the remaining packet delay margin or the resource reservation interval, and the optimal value among the M first transmission parameters is the minimum value of each transmission parameter among the M first transmission parameters.
  • the method before determining that the at least one first transmission parameter set is a group or multiple transmission parameter sets in the M transmission parameter set that include the optimal value, the method also includes: determining that the minimum value is higher than the first transmission parameter threshold.
  • the selected transmission resource may not be suitable for joint transmission of all data. Therefore, the above technical solution can try to avoid the difference between the first transmission parameter with the minimum value and other first transmission parameters being too large, so that the selected transmission parameter is suitable for joint transmission of multiple data.
  • the method before determining that the at least one first transmission parameter set is a group or more transmission parameter sets in the M transmission parameter sets that include the optimal value, the method also includes: determining a maximum value among the M first transmission parameters; determining that the difference between the maximum value and the minimum value is less than a first transmission parameter difference threshold.
  • the selected transmission resource may not be suitable for joint transmission of all data. Therefore, the above technical solution can try to avoid the difference between the first transmission parameter with the minimum value and other first transmission parameters being too large, so that the selected transmission parameter is suitable for joint transmission of multiple data.
  • the determining, according to the M transmission parameter sets, at least one first transmission parameter set includes: determining, according to N1 transmission parameters among the N transmission parameters included in each transmission parameter set in the M transmission parameter sets, a second transmission parameter set, wherein the second transmission parameter set includes the N1 transmission parameters; determining, according to the M transmission parameter sets, at least one first transmission parameter set; Determine at least one third transmission parameter set based on N2 transmission parameters among the N transmission parameters included in each transmission parameter set in the number set, wherein the third transmission parameter set includes the N2 transmission parameters, the N2 transmission parameters are the transmission parameters among the N transmission parameters except the N1 transmission parameters, N1 and N2 are positive integers greater than or equal to 1 and less than N, and the at least one first transmission parameter set includes the second transmission parameter set and the at least one third transmission parameter set.
  • the transmission parameters in the first transmission parameter set may come from different transmission parameter sets. Therefore, the selection of the transmission parameters in the first transmission parameter set in the above technical solution is more flexible.
  • the N 1 transmission parameters include a first transmission parameter
  • determining the second transmission parameter set based on N 1 transmission parameters among the N transmission parameters included in each transmission parameter set in the M transmission parameter sets includes: determining the first parameter set, which is a parameter set among the M parameter sets that contains optimal values of M first transmission parameters, and the M first transmission parameters respectively belong to the M parameter sets; and determining that the N 1 transmission parameters included in the second transmission parameter set are the N 1 transmission parameters included in the first parameter set.
  • the transmission parameters in the first transmission parameter set can come from different transmission parameter sets. Therefore, the selection of the transmission parameters in the first transmission parameter set of the above technical solution is more flexible. In addition, the above technical solution can ensure that the selected first transmission parameter set contains the optimal value of the first transmission parameter.
  • determining at least one first transmission parameter set based on M transmission parameter sets includes: determining N target transmission parameters, the N target transmission parameters are respectively the optimal values of the N transmission parameters in the M transmission parameter sets; and determining that the first transmission parameter set includes the N target transmission parameters.
  • the above technical solution takes into account the optimal values of all transmission parameters when selecting the transmission parameters in the first transmission parameter set. Therefore, the first transmission parameter set selected by the above technical solution can determine a better transmission resource.
  • the N transmission parameters include: a transmission priority, a remaining packet delay margin, a number of sub-channels, and a resource reservation interval, wherein the target transmission priority among the N target transmission parameters is the minimum value among the M transmission priorities, and the M transmission priorities are respectively derived from the M transmission parameter sets, the target remaining packet delay margin among the N target transmission parameters is the minimum value among the M remaining packet delay margins, and the M remaining packet delay margins are respectively derived from the M transmission parameter sets, the target number of sub-channels among the N target transmission parameters is the maximum value among the M number of sub-channels, and the M number of sub-channels are respectively derived from the M transmission parameter sets, and the target resource reservation interval among the N target transmission parameters is the minimum value among the M resource reservation intervals, and the M resource reservation intervals are respectively derived from the M transmission parameter sets.
  • the method before determining the N target transmission parameters, further includes: determining that the number of resource block sets of any two data in the M data is the same.
  • the method before determining at least one first transmission parameter set based on the M transmission parameter sets, the method further includes: determining the M data from the K data, the number of resource block sets of any two data in the M data, and the number of resource block sets of any data other than the M data in the K data is different from the number of resource block sets of any data in the M data.
  • resource sets with different numbers are excluded so that the physical layer can more conveniently select resources according to a uniform bandwidth size.
  • the determining at least one first transmission parameter set according to the M transmission parameter sets includes: when determining that the number of resource block sets of any two data in the M data is different, determining the number of subchannels in the first transmission parameter set to be a preset or preconfigured number of resource block sets.
  • a single transmission parameter set is used to facilitate resource selection by the physical layer.
  • the method before determining at least one first transmission parameter set based on the M transmission parameter sets, the method further includes: determining that the resource reservation intervals in the transmission parameter sets of any two data in the M data are in a positive integer multiple relationship.
  • the method before determining at least one first transmission parameter set based on the M transmission parameter sets, the method further includes: determining the M data from the P data, the resource reservation intervals in the transmission parameter sets of any two of the M data are in the positive integer multiple relationship, and the resource reservation intervals in the transmission parameter set of any one of the K data except the M data are not in the positive integer multiple relationship with the resource reservation intervals in the transmission parameter set of any one of the M data.
  • the N transmission parameters include: a sending priority, a remaining Packet delay margin, number of subchannels and resource reservation interval, the N transmission parameters also include: the number of data retransmissions, the number of TBs of data that need to be transmitted in multiple TBs, or the number of time domain units for continuous transmission.
  • the physical layer can accurately select resources of the corresponding number of time domain units.
  • the method before determining at least one first transmission parameter set based on the M transmission parameter sets, the method further includes: receiving configuration information from a network device, the configuration information being used to indicate the use of single TB continuous transmission, the use of multiple TB continuous transmission, or the support of single TB and multiple TB continuous transmission.
  • the network device can control the way in which resource selection is performed to ensure the performance of resource selection.
  • an embodiment of the present application provides a communication method, comprising: obtaining M power parameter sets, the M power parameter sets corresponding one-to-one to M continuous time domain units, and M being a positive integer greater than or equal to 2; determining a first transmission power according to the M power parameter sets; and sending data on the M continuous time domain units according to the first transmission power.
  • the above technical solution can determine a unified transmission power for data transmitted jointly in multiple time domain units, so that it is convenient for the transmitter to send data in continuous time domain units.
  • determining a first transmit power according to the M power parameter sets includes: determining M first powers, the M first powers corresponding one-to-one to the M power parameter sets, each of the M first powers being determined according to the corresponding power parameter set, and determining a maximum value among the M first powers as the first transmit power; or determining M first powers, the M first powers corresponding one-to-one to the M power parameter sets, each of the M first powers being determined according to the corresponding power parameter set, and determining that the maximum power value on each unit frequency domain resource of the M first powers is the transmit power of the first transmit power on each unit frequency domain resource; or determining M first powers, the M first powers corresponding one-to-one to the M power parameter sets, each of the M first powers is determined according to the corresponding power parameter set, and determining that the minimum power value on each unit frequency domain resource of the M first powers is the transmit power of the first transmit power on each unit frequency domain resource.
  • the unit frequency domain resource is a subcarrier, a physical resource block PRB, or a subchannel.
  • sending data on the M consecutive time domain units according to the first transmission power includes: sending data on the M consecutive time domain units using the first transmission power.
  • sending data on the M consecutive time domain units based on the first sending power includes: determining M second sending powers, the j-th second sending power of the M second sending powers being determined based on the first sending power, the number of frequency domain resources of the first time domain unit and the number of frequency domain resources of the j-th time domain unit in the M consecutive time domain units, and the first sending power is determined based on a sending power parameter corresponding to the first time domain unit; and sending data on the M consecutive time domain units using the M second sending powers respectively.
  • the j-th second transmit power is based on the first transmit power, the number of RBs of the first time domain unit, and the number of RBs of the j-th time domain unit in the M consecutive time domain units, satisfying the following formula:
  • i represents the index of the first time domain unit of M consecutive time domain units
  • j represents the index of the j-th time domain unit among the M consecutive time domain units
  • P(i+j) is the j-th second transmit power
  • P(i+i m ) is the first transmit power
  • M RB (i+j) is the number of frequency domain resources of the j-th time domain unit
  • M RB,Mi (i+i m ) is the number of frequency domain resources of the first time domain unit.
  • each group of transmit power parameters in the M transmit power parameter sets includes N transmit power parameters
  • determining the first transmit power based on the M transmit power parameter sets includes: determining a first transmit power parameter set based on the M transmit power parameter sets, the first transmit power parameter set including the N transmit power parameters; determining the first transmit power based on the first transmit power parameter set.
  • the first transmit power parameter set includes: one or more parameters of priority, path loss, or bandwidth.
  • the priority in the first transmit power parameter set is any one of the following: the highest priority among the M power parameter sets; the priority of transmission in the power parameter set that determines the maximum value of the M first powers among the M power parameter sets; the priority of transmission in the power parameter set that determines the minimum value of the M first powers among the M power parameter sets; the maximum power value on each unit frequency domain resource among the M first powers, the corresponding power parameter The transmission priority of the set; the minimum power value on each unit frequency domain resource among the M first powers, and the corresponding power parameter set transmission priority.
  • determining the first transmit power according to the first transmit power parameter set includes: determining the value of the channel busy ratio CBR for sending data on the M consecutive time domain units according to the priority in the first transmit power parameter set; determining the maximum power value for sending data on the M consecutive time domain units according to the value of the CBR; and determining the first transmit power value according to the maximum power value.
  • the path loss includes any one of the following: the maximum path loss on the M consecutive time domain units; the minimum path loss on the M consecutive time domain units; the average path loss on the M consecutive time domain units; the path loss on the first time domain unit on the M consecutive time domain units; the path loss on the last time domain unit on the M consecutive time domain units; the path loss on the time domain unit with the highest transmission priority on the M consecutive time domain units.
  • determining the first transmit power according to the first transmit power parameter set includes: determining the sideline power and/or the cellular link power according to the path loss; determining the first transmit power according to the sideline power and/or the cellular link power.
  • an embodiment of the present application provides a communication device, which includes a module for implementing the first aspect or any possible implementation method of the first aspect.
  • an embodiment of the present application provides a communication device, which includes a module for implementing the second aspect or any possible implementation method of the second aspect.
  • an embodiment of the present application provides a communication device, which includes a module for implementing the third aspect or any possible implementation method of the third aspect.
  • an embodiment of the present application provides a communication device, which includes a processor, and the processor is used to execute a computer program stored in a memory, so that the communication device executes the first aspect or any possible implementation method of the first aspect.
  • the communication device also includes a memory.
  • an embodiment of the present application provides a communication device, which includes a processor, and the processor is used to execute a computer program stored in a memory, so that the communication device executes the second aspect or any possible implementation method of the second aspect.
  • the communication device also includes a memory.
  • an embodiment of the present application provides a communication device, which includes a processor, and the processor is used to execute a computer program stored in a memory, so that the communication device executes the third aspect or any possible implementation method of the third aspect.
  • the communication device also includes a memory.
  • an embodiment of the present application provides a chip system, which includes a logic circuit, which is used to couple with an input/output interface and transmit data through the input/output interface to execute the first aspect or any possible implementation method of the first aspect.
  • an embodiment of the present application provides a chip system, which includes a logic circuit, which is used to couple with an input/output interface and transmit data through the input/output interface to execute the second aspect or any possible implementation method of the second aspect.
  • an embodiment of the present application provides a chip system, which includes a logic circuit, which is used to couple with an input/output interface and transmit data through the input/output interface to execute the third aspect or any possible implementation method of the third aspect.
  • an embodiment of the present application provides a computer-readable storage medium, which stores program code.
  • the computer storage medium runs on a computer, it enables the computer to execute the first aspect or any possible implementation of the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium, which stores a program code.
  • the computer storage medium runs on a computer, the computer executes the second aspect or any possible implementation of the second aspect.
  • an embodiment of the present application provides a computer-readable storage medium, which stores program code.
  • the computer storage medium runs on a computer, it enables the computer to execute the third aspect or any possible implementation of the third aspect.
  • an embodiment of the present application provides a computer program product, which includes: a computer program code, when the computer program code runs on a computer, enables the computer to execute the first aspect or any possible implementation method of the first aspect.
  • an embodiment of the present application provides a computer program product, the computer program product comprising: a computer program code, when the computer program code is run on a computer, the computer executes the second aspect or any possible implementation of the second aspect Way.
  • an embodiment of the present application provides a computer program product, which includes: a computer program code, when the computer program code runs on a computer, enables the computer to execute the third aspect or any possible implementation of the third aspect.
  • FIG1 is a schematic diagram of an application scenario involved in this application.
  • FIG. 2 is a schematic diagram of an application scenario involved in the present application.
  • FIG3 is a schematic diagram of a perception window and a resource selection window.
  • FIG4 is a schematic flowchart of a communication method provided according to an embodiment of the present application.
  • FIG5 is a method for determining candidate transmission resources according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a first resource, a second resource, and a third resource.
  • FIG. 7 is a schematic diagram of a first resource, a second resource, and a third resource.
  • FIG8 is a schematic diagram of a first resource, a second resource, and a third resource.
  • FIG. 9 is a schematic diagram of a first resource, a second resource, and a third resource.
  • FIG. 10 is a schematic diagram of a first resource, a second resource, and a third resource.
  • FIG. 11 is a schematic diagram of a first resource, a second resource, and a third resource.
  • FIG. 12 is a schematic flowchart of a method for determining data sending according to an embodiment of the present application.
  • FIG13 is a schematic structural block diagram of another communication device provided according to an embodiment of the present application.
  • FIG14 is a schematic structural block diagram of a communication device provided according to an embodiment of the present application.
  • FIG. 15 is a schematic structural block diagram of a communication device provided according to an embodiment of the present application.
  • FIG16 is a structural block diagram of a communication device provided according to an embodiment of the present application.
  • references to "one embodiment” or “some embodiments” described in this specification mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment.
  • words such as “exemplary” or “for example” are used to indicate examples, illustrations or explanations. Any embodiment or design described as “exemplary” or “for example” in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs.
  • the use of words such as “exemplary” or “for example” is intended to present related concepts in a specific way.
  • the terms “including”, “comprising”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized.
  • "used to indicate” may include being used for direct indication and being used for indirect indication.
  • the indication information When describing that a certain indication information is used to indicate A, it may include that the indication information directly indicates A or indirectly indicates A, but it does not mean that the indication information must carry A.
  • the technical solution of the embodiment of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system
  • LTE Long Term Evolution
  • the satellite communication system includes satellite base stations and terminal equipment.
  • the satellite base station provides communication services for the terminal equipment.
  • the satellite base station can also communicate with the base station.
  • the satellite can be used as a base station or a terminal equipment.
  • the satellite can refer to a drone, a hot air balloon, a low- orbit satellite, a medium-orbit satellite, a high-orbit satellite, etc.
  • the satellite can also refer to a non-ground base station or non-ground equipment, etc.
  • a terminal device may be a device that provides voice/data connectivity to a user, such as a handheld device with wireless connection function, a vehicle-mounted device, etc.; it may be a device in vehicle networking communication, such as a communication terminal loaded on a vehicle, a road side unit (RSU); it may be a communication terminal loaded on a drone; it may also be a terminal device in an Internet of Things (IoT) system.
  • a terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • UE user equipment
  • terminal devices include, but are not limited to: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, terminals in vehicle-to-everything (V2X), wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, and wireless terminals in transportation safety.
  • MID mobile internet devices
  • VR virtual reality
  • AR augmented reality
  • wireless terminals in industrial control terminals in vehicle-to-everything (V2X)
  • V2X vehicle-to-everything
  • wireless terminals in self-driving wireless terminals in remote medical surgery
  • wireless terminals in smart grid wireless terminals in transportation safety.
  • the present invention relates to wireless terminals in the field of communications technology, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDA), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, wearable devices, terminal devices in 5G networks or terminal devices in future evolved public land mobile networks (PLMN), etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • handheld devices with wireless communication functions computing devices or other processing devices connected to wireless modems
  • wearable devices terminal devices in 5G networks or terminal devices in future evolved public land mobile networks (PLMN), etc.
  • PLMN public land mobile networks
  • the device for realizing the function of the terminal device may be the terminal device; or it may be a device capable of supporting the terminal device to realize the function, such as a chip system.
  • the device may be installed in the terminal device or used in combination with the terminal device.
  • the chip system may be composed of a chip, or may include a chip and other discrete devices.
  • the technical solution in the embodiment of the present application can also be applied to access network equipment.
  • the access network equipment can be a device that can access a terminal device to a wireless network.
  • the access network equipment can also be called a radio access network (RAN) node, a radio access network device, or a network device.
  • RAN radio access network
  • the access network equipment can be a base station.
  • the base station in the embodiments of the present application can broadly cover the following various names, or be replaced with the following names, such as: Node B, evolved Node B (eNB), next generation Node B (gNB), relay station, access point, transmitting point (TRP), transmitting point (TP), master eNodeB (MeNB), secondary eNodeB (SeNB), multi standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc.
  • a base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof.
  • a base station may also refer to a communication module, a modem, or a chip used to be arranged in the aforementioned device or apparatus.
  • a base station may also be a network-side device in a 6G network, a device that assumes the function of a base station in a future communication system, and the like.
  • a base station may support networks with the same or different access technologies.
  • Base stations can be fixed or mobile.
  • a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station.
  • a helicopter or drone can be configured to act as a device that communicates with another base station.
  • the location management device is a device used by the network side to determine the location information of the terminal device.
  • the location management device can be a location management function (LMF) entity, an evolved serving mobile location center (E-SMLC) or other devices that can be used to determine the location information of the terminal device.
  • LMF location management function
  • E-SMLC evolved serving mobile location center
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the access network device.
  • FIG1 is a schematic diagram of an application scenario 100 involved in the present application.
  • the cooperation information of the terminal device 130 can be used to assist the sidelink communication between the terminal device 110 and the terminal device 120.
  • the cooperation information may include indication information of the sidelink resources that can be used and/or indication information of the sidelink resources that cannot be used.
  • the terminal device 110 can perform sidelink communication with the terminal device 120 based on the cooperation information.
  • the sidelink communication modes include mode 1 and mode 2.
  • configuration-based scheduling type 1 means that the base station configures the resources for the terminal device to transmit, and the terminal device transmits according to the configured resources without further scheduling according to the business situation.
  • Configuration-based scheduling type 2 means that the base station configures a resource that can be used for transmission, and the terminal device uses the configured resources for continuous transmission.
  • the base station in mode 1, can schedule resources for sidelink communication (or sidelink communication resources) to the terminal device 1 and/or the terminal device 2, and the terminal device 1 performs sidelink communication to the terminal device 2 according to the resources scheduled by the base station.
  • the base station can configure or pre-configure the resource pool, and the terminal device 1 performs resource perception (or called listening, resource perception or perception, etc.) and resource selection in the resource pool, and performs sidelink communication to the terminal device 2 through the selected resources.
  • resource perception or called listening, resource perception or perception, etc.
  • resource selection or called listening, resource perception or perception, etc.
  • the terminal device 1 that performs mode sidelink communication it needs to have perception capability or support the selection of transmission resources for sidelink communication through perception.
  • Sidelink communication resources refer to resources for sidelink communication scheduled by the base station, or refer to time-frequency resources in a resource pool for sidelink communication.
  • Terminal device 1 can perform sidelink transmission on the resource.
  • a resource can carry a physical sidelink control channel (physical sidelink control channel, PSCCH), a physical sidelink shared channel (physical sidelink share channel, PSSCH), a physical sidelink feedback channel (physical sidelink feedback channel, PSFCH), and/or, carry demodulation reference signals (demodulation reference signal, DMRS) and other signals.
  • the reference signal can be carried in one or more resource elements (resource element, RE), and RE can occupy one symbol in the time domain and one subcarrier in the frequency domain.
  • the time domain scheduling unit of the sidelink resource is a time slot
  • the frequency domain scheduling unit is a subchannel.
  • terminal device 1 can measure the signal quality of resources within the sensing window, for example, the reference signal received power (RSRP) measurement value of the detection resource. If the RSRP measurement value is greater than or equal to a certain threshold, it is considered that the resource is occupied by other terminal devices.
  • RSRP reference signal received power
  • Terminal device 1 excludes the resources in the resource selection window corresponding to the resource from the candidate resource set.
  • the resources in the resource selection window corresponding to the excluded resource may be resources determined according to the resource and the resource reservation interval.
  • the resource reservation interval is a signaling-configured or predefined periodic value, which may be indicated by sidelink control information (SCI).
  • SCI may indicate the resource reservation interval and the time-frequency resources currently in use.
  • the resources reserved after the SCI sending moment and the resource reservation interval currently in use may correspond to the resources reserved, which may be referred to as periodic reserved resources in this application.
  • the periodic reserved resources are reserved by the sending device through the SCI it sends. From the perspective of the receiving device, it receives the SCI sent by other devices, thereby determining the resources periodically reserved by these devices through the SCI it sends.
  • the terminal device 1 can exclude the periodic reserved resources of the resource in the candidate resource set through resource sensing.
  • the remaining resources in the sensing window i.e., the resources not excluded
  • the resources or candidate resources used for sidelink transmission refer to the resources or a collection of resources used or considered by the transmitting terminal device for sidelink transmission to the receiving terminal device.
  • the moment of triggering resource selection is also called the resource selection triggering moment, that is, the time point at which the resource selection is triggered.
  • the higher layer requests the terminal device to determine the moment of a set of resource sets, which are used for resource selection during data transmission.
  • the higher layer referred to in the embodiment of the present application can be a protocol or signaling of a network device (such as a base station), or it can be an upper layer protocol stack of a terminal device (such as an upper layer software, a media access control (MAC) layer, etc.).
  • this triggering moment can be represented as n.
  • the moment can be the position of a symbol, a time slot, a mini time slot (the number of occupied symbols is any number of symbols from 1 to 12 or 1 to 14 symbols), a subframe or a radio frame, etc.
  • time slot n when time slot n is triggered, the higher layer will provide the terminal device with parameters for resource selection. These parameters include one or more of the following: the resource pool used, the priority of the physical layer, the remaining PDB, the number of subchannels required in a time slot, the interval of resource reservation, etc.
  • the moment of triggering resource selection is usually the moment when the application layer data has been assembled in the protocol stack and is about to be sent down through the physical layer.
  • the time when resource selection is triggered may be the time when a transport block (TB) of the MAC layer arrives (or is about to be sent, or is about to arrive) at the physical layer.
  • TB transport block
  • An example is used to describe the time when resource selection is triggered, but it does not exclude that the time slot n here can be replaced by a transmission time n of other time units such as symbol n, mini time slot n, etc.
  • a transport block can be used to carry one or more data packets transmitted via the side link.
  • the perception window may also be referred to as a resource perception window, or may also be referred to as a listening window, a detection window or an equivalent monitoring window.
  • the perception window is a set of time-frequency resources of the terminal device within a period of time before the moment of triggering resource selection. Because the moment when the terminal device needs to perform physical layer resource selection occurs at the moment of triggering resource selection, the terminal device will know whether resource selection is needed only after the moment of triggering resource selection arrives. Therefore, the terminal device will always perceive the resources, so that when the moment of triggering resource selection arrives, it can determine the appropriate transmission resources after the moment of triggering resource selection based on the perception results before the moment of triggering resource selection.
  • the terminal device usually performs detection and analysis with the length of the perception window going forward.
  • the time domain position of the perception window is [nT 0 ,nT proc,0 ).
  • T proc,0 is the time for the sending terminal device to process the monitoring result. The value of T proc,0 will be different according to the capabilities of the terminal device, and T proc,0 ⁇ 0.
  • the selection window may also be referred to as a resource selection window. It is part or all of the time domain resources within the packet delay budget (PDB) remaining after the moment of triggering resource selection.
  • the terminal device may exclude unavailable time-frequency resources in the resource selection window [n+T 1 , n+T 2 ] according to the perception result, and then send the terminal device to obtain available time-frequency resources for sending TB, which is used to obtain the resources used for sidelink transmission through resource selection.
  • T 1 is a non-negative constant
  • T 2 is a constant that does not exceed the remaining PDB. The terminal device needs to determine the transmission resources for the TB to be transmitted within the selection window.
  • the terminal device needs to send the TB to be transmitted according to the determined transmission resources within the selection window.
  • the terminal device (such as the physical layer) may determine a candidate or available resource set (which may be referred to as a candidate resource set, and the resources therein may be referred to as candidate resources) in the selection window, and then report these resource sets to the upper layer (such as the MAC layer), and then the upper layer determines the transmission resources from this resource set.
  • the physical layer of the terminal device may directly determine the transmission resources based on the determined candidate or available resource set, and send the TB to be transmitted.
  • the time when the terminal device service layer generates data is the start time of the PDB, PBD is the maximum delay, and the start time may be before time n.
  • the PDB after time n is the remaining PDB.
  • the time domain range of the perception window in the present application may not be limited to [nT 0 , nT proc, 0 ), and/or the time range of the resource selection window may not be limited to [n+T 1 , n+T 2 ]. In other words, there may be no specific constraints on the time domain range of the perception window and/or the resource selection window.
  • the terminal device selects resources from the resource pool for sidelink transmission in the following ways: random resource selection, partial sensing resource selection, and full sensing resource selection.
  • random resource selection means that the terminal device determines resources from the resource selection window by random selection.
  • This resource selection method does not require the terminal device to support perception, and the terminal device may not even have the ability to perceive resources.
  • the terminal that performs random resource selection may also have perception capabilities, which is not limited in the embodiments of the present application.
  • the terminal device In partial perception, the terminal device only perceives the occupancy of a portion of the resources in the resource pool, but does not perceive other resources. The terminal device can then select transmission resources from the perceived unoccupied resources and/or the unperceived resources. Terminal devices that select resources in this way are partially perceived devices, such as the partially perceived devices being studied in the 3GPP standard R17.
  • Partial sensing includes periodic based partial sensing (PPS) and/or short term sensing (STS).
  • PPS periodic based partial sensing
  • STS short term sensing
  • Periodic partial sensing or periodic sensing means that the terminal device will use partial sensing resources for detection every step length Pstep on some time domain resources on the time axis. Then it will sense possible side transmission from all or part of these partial sensing resources. It can be described as: ty-k*Pstep.
  • the step size Pstep can be the entire set or a subset of the set of all resource reservation interval values, and the resource reservation interval is configured by signaling or predefined.
  • ty can be a candidate time slot of a candidate resource of size Y determined from a selection window based on periodic partial perception.
  • y in ty can be y 0 ,y 1 ,...,y Y-1 .
  • each candidate sensing resource subset can be called a group of sensing resources, and its positions are: ty -10Pstep , ty- 9Pstep , ... and ty -Pstep , and these candidate sensing resource subsets can be represented by ty-10Pstep , ty -9Pstep , ... and ty -Pstep, respectively.
  • the size (or length) of each candidate sensing resource listening subset is Y time slots (or subframes).
  • ty can be the first time slot in Y, or a certain time slot in the middle, or the last time slot.
  • the resources sensed by the terminal device in the periodic partial perception can be referred to as partial sensing resources of the periodic interval or periodic partial sensing resources, etc.
  • the partial sensing resources of the periodic interval may include one or more groups of sensing resources in ty-10Pstep , ty-9Pstep , ... and ty -Pstep .
  • the time slots for performing partial sensing operations may be one or more groups of sensing resources, and each group of sensing resources is determined by tyk*Pstep according to the corresponding k value.
  • the k value is fixed to a predefined integer, there is only the group corresponding to the k value.
  • the k value can be 1 or 2
  • the k value can be 1, 2, or 3, there may be three groups, ty-Pste, ty-2*Pste , and ty -3*Pste .
  • the "period" in the periodic partial sensing operation refers more to the fact that the resources for performing partial sensing are determined based on the interval Pstep. When it has only one group, it does not mean that other operations are to be performed. When it has multiple groups, it refers to multiple groups determined by the interval Pstep.
  • Pstep when Pstep has different values, different Psteps will determine different partial sensing resources according to tyk*Pstep .
  • the partial sensing of the period may be before the time slot n, or after the time slot n. This embodiment of the present application does not limit this.
  • V2X communication takes V2X communication as an example to illustrate how terminal devices perform periodic partial perception.
  • the terminal device detects the SCI sent by other devices, and these SCIs will indicate at least one of the following information: the time-frequency resources occupied by the corresponding data in the current time slot, the reserved resources or the transmission period corresponding to the subsequent 1 or 2 retransmissions.
  • the terminal device can determine the resources occupied or reserved for the transmission of the current data packet and the subsequent retransmissions respectively based on these occupied resources and reserved resources. Further, in combination with the period indicated in the SCI, the resources occupied on the corresponding time-frequency resources in the subsequent period can also be determined. When the period is continuously extended forward, the resources occupied in the resource selection window in the future can be determined.
  • the terminal device detects that the resources occupied or reserved by another terminal device are R(x,y), where x represents the frequency domain position, and y represents the time domain position of the detected SCI or the reserved position indicated by the current SCI. Then the terminal device can determine that all resources R(x,y+j*P) are resources reserved for the other terminal device, where j is a non-negative integer and P is the period value indicated on the detected SCI. Based on this, the terminal device can determine the resources occupied or reserved by other terminal devices in the perception window and resource selection window in combination with this information, so that these resources can be excluded from the resource selection window. It should be understood that, unless otherwise specified in this application, excluding resources means not using certain resources as resources in the candidate resource set and/or not using certain resources as resources for side transmission.
  • Short-term perception refers to the terminal device perceiving all or part of the time units in a period of time determined in the resource selection window and/or perception window.
  • the terminal device determines the candidate resources based on the perception results.
  • the difference from the period-based partial perception is that the short-term perceived resources are not determined according to the preset interval Pstep, and only need to measure the position for a period of time.
  • the short-term perceived resources may be located after the moment of triggering resource selection and before ty , so the short-term perception does not need to be performed frequently, but only needs to be performed after the resource selection is triggered to save power consumption.
  • the terminal device can obtain the reservation or occupation of the resources in the selection window by other terminal devices based on the short-term partial perception in the selection window, thereby excluding the resources reserved and/or occupied by other terminal devices in the selection window.
  • the terminal device may use the perception window based on periodic partial perception to determine the resource occupancy information of the periodic service, and/or use the perception resource of short-term perception to monitor the occupancy information of the periodic or non-periodic service.
  • the terminal device may combine the occupancy information of these two parts of resources to obtain a complete monitoring result.
  • full perception requires the terminal device to perceive all resources within the perception window.
  • both partial perception and full perception resource selection methods require the terminal device to have perception capabilities.
  • the perception and resource selection process of the sending terminal device may include the following steps:
  • the transmitting terminal device receives SCI from other terminal devices on the sensing resources, and the SCI includes resource reservation information of other terminal devices.
  • n represents the time when the transmitting terminal device is triggered to select resources.
  • the SCI is a first-stage SCI (1st-stage SCI), which is sent on the PSCCH.
  • the sensing resources here include sensing resources based on periodic partial sensing and/or sensing resources based on short-time sensing. If full sensing is adopted, the sensing resources may include all resources within the sensing window.
  • the resources in the perception window may be a portion of the resources in the resource pool determined according to time n.
  • one SCI can schedule three transmissions of the same TB, for example, the first transmission of the three transmissions is the initial transmission, and the next two transmissions are retransmissions, or all three transmissions are retransmissions.
  • the perception information included in the SCI includes the scheduling data of the second and third retransmissions. Time-frequency resource information, periodic time-frequency resource information reflecting the data service cycle, and data priority information. It can be understood that at a given moment, a terminal device reserves resources (including time-frequency resources) after that moment for data retransmission and new periodic data transmission by sending an SCI.
  • the transmitting terminal device learns from the perception information of the SCI received from the terminal device 1 that the time-frequency resource reserved by the terminal device 1 is within the resource selection window [n+T 1 ,n+T 2 ] of the transmitting terminal device, the transmitting terminal device measures the DMRS of the data and/or control channel that the terminal device 1 needs to send on the time-frequency resource according to the perception information to obtain the RSRP measurement value. If the RSRP measurement value is greater than the RSRP threshold, the transmitting terminal device excludes the periodic reserved resources corresponding to the time-frequency resource from the set SA.
  • the terminal device can exclude resources from the set SA according to the time domain position of the unperceived resources within the perception window and all cycles in the service cycle set configured for the resource pool.
  • the initialization state of the set SA is the set of all candidate single-slot resources in the resource selection window.
  • a candidate single-slot resource refers to a time-frequency resource with a time domain length of 1 slot.
  • SA represents a candidate resource set, and the initial state of the candidate resource set includes all candidate single-slot resources in the resource selection window.
  • the sending terminal device can determine available time-frequency resources among the remaining resources in the perception window, so that the sending terminal device selects time-frequency resources from the available time-frequency resources to send data.
  • M total is the total number of all candidate single-slot resources in the resource selection window, or M total is the total number of all resources that can be used for side transmission of the second terminal in the resource selection window.
  • steps 1 to 4 are also referred to as a process of determining candidate resources.
  • the process of determining candidate resources in the present application can be implemented with reference to the above steps 1 to 4, or implemented in other ways.
  • the time-frequency resources used by the sending terminal device when sending data are selected in the resource selection window based on the monitoring result of the sending terminal device in the resource perception window.
  • the perception result can be regarded as obtained on the basis of the monitoring result.
  • the monitoring result includes the results determined by the above steps 1, 2 and 3 or 1, 2, 3 and 4.
  • the perception result is the set of resources remaining after resource exclusion.
  • the sending terminal device is not aware of the channel conditions around the receiving terminal device.
  • the sending terminal device does not perceive it, then for the receiving terminal device, when it receives data from the sending terminal device, it may be subject to strong interference caused by the side communication of other terminal devices, resulting in poor signal reception quality of the receiving terminal device, or even possible reception failure.
  • the priority of the data may be the priority of the service to which the data belongs.
  • the priority of the data to be sent is known, such as obtained from a high level.
  • the terminal device may learn the priority of the service transmitted by other terminal devices based on the priority information carried in the SCI.
  • the higher the service priority the more important the data in the data packet corresponding to the service to be transmitted is.
  • the higher the service priority the higher the service quality (quality of service, QoS) parameter requirements of the service.
  • the QoS parameters of the service include at least one of the following: reliability requirements of the service, transmission delay requirements of the service, transmission rate or transmission throughput requirements of the service.
  • the priority of the service may be negatively correlated with the priority value indicated in the SCI, or it may be positively correlated. Taking the negative correlation as an example, the smaller the priority value indicated in the SCI, the more important the service is, and vice versa, the larger the priority value, the lower the importance of the service.
  • the priority in the SCI can be indicated by 3 bits, and its value can correspond to an integer from 1 to 8. When the SCI indicates 1, it indicates that the service priority is higher; when the SCI indicates 8, it indicates that the service priority is lower.
  • the priority of the data may be the priority of the TB to be transmitted by the MAC layer to the physical layer.
  • a TB of a service to be transmitted may include: at least one MAC control element and/or at least one logical channel.
  • each MAC control element corresponds to a priority
  • each logical channel corresponds to a priority.
  • the highest priority among the at least one MAC control element and/or at least one logical channel included in the service to be transmitted may be determined as the priority of the entire TB of the service to be transmitted.
  • Signaling configuration in this application, may also be described as configuration signaling, or simply configuration.
  • signaling configuration includes configuration by signaling sent by the base station, and the signaling may be any one of radio resource control (RRC) messages, downlink control information (DCI) or system information block (SIB), MAC control resource element (CE), or SCI.
  • RRC radio resource control
  • DCI downlink control information
  • SIB system information block
  • CE MAC control resource element
  • the signaling configuration may also be configured to the terminal device by pre-configured signaling, or configured to the terminal device in a pre-configured manner.
  • the pre-configuration here is to define or configure the values of the corresponding parameters in advance in a protocol manner, and store them in the terminal device when communicating with the terminal device.
  • the pre-configured message can be modified or updated under the condition that the terminal device is connected to the network.
  • the signaling configuration may be the value of the relevant parameters.
  • the value or configuration information is limited to the resource pool sent or received by the terminal device.
  • the resource pool is a collection of resources used for transmission on a specific carrier or bandwidth portion
  • Data or information can be carried through time and frequency resources.
  • the time-frequency resources may include one or more time domain units (or, may also be referred to as time units).
  • a time domain unit may be a symbol, or a mini-slot, or a slot, or a partial slot, or a subframe, or a radio frame, and so on.
  • time-frequency resources can include one or more frequency domain units.
  • a frequency domain unit can be a resource element (RE), a resource block (RB), a subchannel, a resource pool, a bandwidth, a bandwidth part (BWP), a carrier, a channel, or an interlace RB, etc.
  • a time slot is the most basic time domain resource unit for a transmission.
  • a time slot includes: a full time slot, a mini time slot, a partial time slot, or a sub-time slot consisting of one or more OFDM symbols.
  • a time slot may also be a set of one or more symbols.
  • a time slot may also include a set of one or more OFDM symbols, for example, the number of the one or more OFDM symbols is 1, 2, 3, 4, 6, 7, 12 or 14, etc.
  • the time slot referred to in the embodiments of the present application may include a time slot, a mini time slot, or any one of a partial time slot and a complete time slot.
  • guard period (GP) symbols for a time slot, if there are one or more guard period (GP) symbols in the middle of the time slot or in the last symbol of the time slot, these GP symbols may be included or not.
  • GP guard period
  • the time slot may include the last null symbol, or in another expression, the time slot may not include the last null symbol.
  • the frequency domain resource may be an RB set, a subchannel, an interlace, a PRB or an RE.
  • An RB set may include multiple RBs or multiple subchannels.
  • An interlaced frequency domain resource block may also be referred to as an interlace.
  • An interlace may include multiple discrete frequency domain resources (or discontinuous frequency domain resources), wherein the frequency domain intervals between adjacent discrete frequency domain resources are equal.
  • a subchannel refers to a unit of frequency domain resources formed by a plurality of continuous RBs.
  • the number of continuous RBs included in a subchannel may be configured by signaling or predefined.
  • the number of RBs included in a subchannel is an integer such as 10, 12, 15, 20, or 25.
  • an interlace includes multiple RBs, and a number of RBs not used for transmission are equally spaced between the RBs.
  • an interlace occupies 10 RBs, and only one RB out of every 10 RBs is used for transmission, and the rest are not used for transmission of the first device.
  • an interlace can occupy a total of 5 RBs numbered 0, 10, 20, 30, and 40, and the remaining RBs are left empty for no transmission.
  • Signal quality is a physical quantity or measurement indicator used to measure the strength, energy, power, etc. of the signal received, detected or estimated on a specific resource or reference signal, reflecting the quality of the received signal.
  • the signal quality of the reference signal resource includes any one or more of the following: reference signal received power (reference signal received power, RSRP), reference signal received quality (reference signal received quality, RSRQ), received signal strength indication (received signal strength indication, RSSI), and signal to interference plus noise ratio (signal to interference plus noise ratio, SINR).
  • SINR refers to the ratio of the strength of the received useful signal to the strength of the received interference signal (noise and interference).
  • the above-mentioned signal quality can be the quality of the physical layer.
  • RSRP of the physical layer such as L1-RSRP
  • RSRQ of the physical layer such as L1-RSRQ
  • RSSI of the physical layer such as L1-RSSI
  • SINR of the physical layer such as L1-SINR
  • channel busy ratio channel busy ratio, CBR
  • channel occupancy ratio channel occupancy ratio, CR
  • the signal quality measured for the sidelink–physical reference signal may be RSSI, RSRP, or RSRQ, which may be respectively expressed as: PRS-RSSI, PRS-RSRP, or PRS-RSRQ.
  • the signal quality measured for a physical sidelink control channel may be RSSI, RSRP, or RSRQ, which may be respectively expressed as: PSCCH-RSSI, PSCCH-RSRP, or PSCCH-RSRQ.
  • FIG4 is a schematic flow chart of a communication method provided according to an embodiment of the present application.
  • the method shown in FIG4 can be performed by a communication device.
  • the communication device referred to in the embodiment of the present application can be a terminal device, a network device (such as an access network device), or a positioning management device; the communication device can also be a component in the above-mentioned device (such as a chip, a chip system and/or a circuit, etc.).
  • a communications device determines at least one first transmission parameter set according to M transmission parameter sets.
  • the communication device determines candidate resources according to the at least one first transmission parameter set.
  • FIG. 4 may further include step 403 .
  • the communication device sends part or all of the M data to be sent in continuous time units according to the candidate resource.
  • the M transmission parameter sets are respectively transmission parameter sets of M data to be sent.
  • Each transmission parameter set in the M transmission parameter sets includes N transmission parameters.
  • the M data to be sent are data to be sent in continuous time domain units.
  • the at least one first transmission parameter set includes the N transmission parameters, N is a positive integer greater than or equal to 1, and M is a positive integer greater than or equal to 2.
  • the N transmission parameters may include transmission priority, remaining packet delay margin, the number of subchannels required in a time domain unit (may be referred to as the number of subchannels), and a transmission resource reservation interval.
  • the transmission priority is the priority of the transmitted service.
  • the N transmission parameters may also include the number of data retransmissions, the number of TBs of data requiring multi-TB transmission, or the number of time domain units for continuous transmission.
  • the N transmission parameters may include any one or more of the following parameters: transmission priority, remaining packet delay margin, number of subchannels required in a time domain unit, transmission resource reservation interval, number of data retransmissions, number of TBs of data requiring multi-TB transmission, or number of time domain units for continuous transmission.
  • the five data to be transmitted may be respectively referred to as data 1, data 2, data 3, data 4, and data 5.
  • the transmission parameter set of data 1 may be recorded as SET 1
  • the transmission parameter set of data 2 may be recorded as SET 2
  • the transmission parameter set of data 3 may be recorded as SET 3 , and so on.
  • Prio Txi can be used to represent the value of the transmission priority in the transmission parameter set i
  • remaining PDB i can be used to represent the value of the remaining packet delay margin in the transmission parameter set i
  • L subCHi can be used to represent the number of subchannels in the transmission parameter set i
  • P rsvp_Txi can be used to represent the value of the transmission resource reservation interval in the transmission parameter set i.
  • the four transmission parameters in SET 1 can be recorded as ⁇ Prio TX1 , remaining PDB 1 , L subCH1 , P rsvp_TX1 ⁇
  • the four transmission parameters in SET 2 can be recorded as ⁇ Prio TX2 , remaining PDB 2 , L subCH2 , P rsvp_TX2 ⁇
  • the four transmission parameters in SET 3 can be recorded as ⁇ Prio TX3 , remaining PDB 3 , L subCH3 , P rsvp_TX3 ⁇ , and so on.
  • the transmission parameters in SET 1 and SET 5 can be recorded as:
  • SET 1 ⁇ Prio TX1 , remaining PDB 1 , L subCH1 , P rsvp_TX1 ⁇ ;
  • SET 2 ⁇ Prio TX2 , remaining PDB 2 , L subCH2 , P rsvp_TX2 ⁇ ;
  • SET 3 ⁇ Prio TX3 , remaining PDB 3 , L subCH3 , P rsvp_TX3 ⁇ ;
  • SET 4 ⁇ Prio TX4 , remaining PDB 4 , L subCH4 , P rsvp_TX4 ⁇ ;
  • SET 5 ⁇ Prio TX5 , remaining PDB 5 , L subCH5 , P rsvp_TX5 ⁇ .
  • the first transmission parameter set may be recorded as T_SET. If there are two or more first transmission parameter sets, then the i-th first transmission parameter set in the two or more first transmission parameter sets may be recorded as T_SET i ; if there is only one first transmission parameter set, then the first transmission parameter set may be expressed as T_SET.
  • the first transmission parameter set may include values of four transmission parameters: transmission priority, remaining packet delay margin, number of sub-channels, and sending resource reservation interval.
  • each target transmission set in the two or more first transmission parameter sets includes the values of four transmission parameters: transmission priority, remaining packet delay margin, number of subchannels, and transmission resource reservation interval.
  • the values of transmission priority, remaining packet delay margin, number of subchannels, and transmission resource reservation interval in T_SET 1 can be respectively recorded as: T_Prio TX1 , T_remaining PDB 1 , T_L subCH1 , T_P rsvp_TX1 ;
  • the values of transmission priority, remaining packet delay margin, number of subchannels, and transmission resource reservation interval in T_SET 2 can be respectively recorded as T_Prio TX2 , T_remaining PDB 2 , T_L subCH2 , T_P rsvp_TX2 , and so on.
  • each of the two or more first transmission parameter sets may only include the transmission priority, the remaining packet delay margin, the number of subchannels, and the values of some transmission parameters in the transmission resource reservation interval.
  • one or more first transmission parameter sets include ⁇ transmission priority, remaining packet delay margin ⁇
  • another one or more first transmission parameter sets include ⁇ number of subchannels, transmission resource reservation interval ⁇
  • one or more first transmission parameter sets include ⁇ number of subchannels, transmission resource reservation interval ⁇
  • the first transmission parameter set includes ⁇ transmission priority, remaining packet delay margin, number of sub-channels ⁇
  • one or more other first transmission parameter sets include ⁇ sending resource reservation interval ⁇
  • one or more first transmission parameter sets include ⁇ transmission priority ⁇
  • one or more other first transmission parameter sets include ⁇ remaining packet delay margin, number of sub-channels, sending resource reservation interval ⁇ .
  • determining at least one first transmission parameter set according to the M transmission parameter sets may include: determining the at least one first transmission parameter set according to the M first transmission parameters, wherein the M first transmission parameters respectively belong to the M transmission parameter sets.
  • the first transmission parameter may be one of the N transmission parameters.
  • the N transmission parameters are transmission priority, remaining packet delay margin, number of subchannels, and transmission resource reservation interval.
  • the first transmission parameter can be one of transmission priority, remaining packet delay margin, number of subchannels, and transmission resource reservation interval.
  • the M first transmission parameters may be transmission priorities in five transmission parameter sets, that is, the five first transmission parameters may include: Prio TX1 , Prio TX2 , Prio TX3 , Prio TX4 and Prio TX5 .
  • the M first transmission parameters may be the remaining packet delay margins in five transmission parameter sets, that is, the five first transmission parameters may include: remaining PDB 1 , remaining PDB 2 , remaining PDB 3 , remaining PDB 4 and remaining PDB 5 .
  • the M first transmission parameters may be transmission resource reservation intervals in five transmission parameter sets, that is, the five first transmission parameters may include: P rsvp_TX1 , P rsvp_TX2 , P rsvp_TX3 , P rsvp_TX4 and P rsvp_TX5 .
  • determining the at least one first transmission parameter set based on the M first transmission parameters may include: determining the optimal value among the M first transmission parameters; and determining that the at least one first transmission parameter set is one or more sets of transmission parameters among the M transmission parameter sets that include the optimal value.
  • the optimal value among the M first transmission parameters may be the best value or the most appropriate value among the M first transmission parameters.
  • the optimal value of the first transmission parameter is the minimum value if the first transmission parameter is a remaining packet delay margin or a transmission resource reservation interval.
  • the optimal value of the first transmission parameter may be a maximum value or a minimum value.
  • the first transmission parameter is the number of subchannels required on a time domain unit, then the number of subchannels of the first transmission parameter is the value that is closest to the average value. This average value may be determined based on the number of M subchannels in the M transmission parameter sets, or may be determined based on the number of historical subchannels.
  • the optimal value of the number of subchannels may be the value that is closest to a reference value, which may be preconfigured, predefined, or indicated by a high level. For ease of description, it is assumed below that the optimal value of the number of subchannels is the maximum value of the number of subchannels.
  • the transmission priority is inversely proportional to the value of the transmission priority. That is, the higher the transmission priority, the smaller the value of the transmission priority. In this case, if the first transmission parameter is the transmission priority, then the optimal value of the M transmission priorities is the minimum value of the M transmission priority values.
  • the transmission priority is proportional to the value of the transmission priority, that is, the higher the transmission priority, the larger the value of the transmission priority.
  • the optimal value of the M transmission priorities is the maximum value among the values of the M transmission priorities.
  • the transmission priority is inversely proportional to the value of the transmission priority, that is, the higher the transmission priority, the smaller the value of the transmission priority.
  • these transmission parameter sets can be used as the first transmission parameter sets.
  • the second transmission parameters of the multiple transmission parameter sets can be compared, and the transmission parameter set with the optimal value of the second transmission parameter can be selected, and the first transmission parameter set can include the N transmission parameters in the transmission parameter set.
  • the transmission parameter set with the optimal value of the third transmission parameter can be selected, and the first transmission parameter set can include the N transmission parameters in the transmission parameter set.
  • the fourth transmission parameter set can be selected according to the fourth transmission parameter set. The transmission parameter determines the first transmission parameter set.
  • the first transmission parameter is the transmission priority
  • the second transmission parameter is the remaining packet delay margin
  • the third transmission parameter is the resource reservation interval.
  • the five resource reservation intervals satisfy: P rsvp_TX3 ⁇ P rsvp_TX2 ⁇ P rsvp_TX1 ⁇ P rsvp_TX4 ⁇ P rsvp_TX5 .
  • T_SET SET 3 .
  • the at least one first transmission parameter set is one or more transmission parameter sets in the M transmission parameter sets that include the optimal value.
  • the optimal value is the minimum value of the M first transmission parameters, then if the minimum value is lower than the first transmission parameter threshold, it can be determined that the at least one first transmission parameter set is a group or more transmission parameter sets in the M transmission parameter sets that include the optimal value.
  • the first transmission parameter is the transmission priority.
  • the values of the transmission priorities in the five transmission parameter sets satisfy the following relationship: Prio TX1 ⁇ Prio TX2 ⁇ Prio TX3 ⁇ Prio TX4 ⁇ Prio TX5 , and Prio TX1 ⁇ TH_Prio TX , then SET 1 can be determined as the first transmission parameter set, and TH_Prio TX is the first transmission parameter threshold when the first transmission layer is the transmission priority.
  • the transmission parameter set including the optimal value may be deleted, and the first transmission parameter set is determined according to the remaining transmission parameter sets.
  • the values of the transmission priorities in the six transmission parameter sets satisfy the following relationship: Prio TX6 ⁇ Prio TX1 ⁇ Prio TX2 ⁇ Prio TX3 ⁇ Prio TX4 ⁇ Prio TX5 , and Prio TX6 >TH_Prio TX .
  • SET 6 can be excluded, and the first transmission parameter set can be determined according to the transmission priorities of SET 1 to SET 5. If Prio TX1 ⁇ TH_Prio TX , then SET 1 can be determined as the first transmission parameter set.
  • the at least one first transmission parameter set is a group or multiple transmission parameter sets in the M transmission parameter sets that include the optimal value.
  • the optimal value is the minimum value of the M first transmission parameters
  • the worst value is the maximum value of the M first transmission parameters. In this case, it can be determined whether the difference between the maximum value and the minimum value is less than the first transmission parameter difference threshold. If the difference between the maximum value and the minimum value is less than the first transmission parameter difference threshold, it can be determined that the at least one first transmission parameter set is one or more transmission parameter sets in the M transmission parameter sets that include the optimal value.
  • the first transmission parameter is the transmission priority.
  • the values of the transmission priorities in the five transmission parameter sets satisfy the following relationship: Prio TX1 ⁇ Prio TX2 ⁇ Prio TX3 ⁇ Prio TX4 ⁇ Prio TX5 , and (Prio TX5 -Prio TX1 ) ⁇ TH_Dff_Prio TX , then SET 1 can be determined as the first transmission parameter set, and TH_Dff_Prio TX is the first transmission parameter difference threshold when the first transmission layer is the transmission priority.
  • the difference between the maximum value and the minimum value is not less than the first transmission parameter difference threshold, multiple transmission parameter sets that satisfy the difference between the maximum value and the minimum value is less than the first transmission parameter difference threshold can be determined, and the first transmission parameter set is determined from the multiple transmission parameter sets.
  • the values of the transmission priorities in the six transmission parameter sets satisfy the following relationship: Prio TX6 ⁇ Prio TX1 ⁇ Prio TX2 ⁇ Prio TX3 ⁇ Prio TX4 ⁇ Prio TX5 , and (Prio TX5 -Prio TX6 )>TH_Dff_Prio TX .
  • Prio TX5 -Prio TX1 and TH_Dff_Prio TX can be compared. If (Prio TX5 -Prio TX1 ) ⁇ TH_Dff_Prio TX , then SET 6 can be excluded and SET 1 is determined as the first transmission parameter set.
  • the determining of at least one first transmission parameter set according to M transmission parameter sets comprises: determining a second transmission parameter set according to N 1 transmission parameters of the N transmission parameters included in each transmission parameter set in the M transmission parameter sets, wherein The second transmission parameter set includes the N1 transmission parameters; according to the N2 transmission parameters among the N transmission parameters included in each transmission parameter set in the M transmission parameter sets, at least one third transmission parameter set is determined, wherein the third transmission parameter set includes the N2 transmission parameters, the N2 transmission parameters are the transmission parameters among the N transmission parameters except the N1 transmission parameters, N1 and N2 are positive integers greater than or equal to 1 and less than N, and the at least one first transmission parameter set includes the second transmission parameter set and the at least one third transmission parameter set.
  • the first transmission parameter set may include two or more.
  • the two or more first transmission parameter sets can be divided into two types: a second transmission parameter set and a third transmission parameter set, the second transmission parameter set includes some transmission layer parameters among the N transmission parameters (i.e., N1 transmission parameters); the third transmission parameter set includes the remaining transmission parameters among the N transmission parameters (i.e., N2 transmission parameters).
  • N transmission parameters include transmission priority, remaining packet delay margin, number of sub-channels and sending resource reservation interval.
  • the transmission parameters in the second transmission parameter set may include ⁇ priority, remaining packet delay margin ⁇ ; the transmission parameters in the third transmission parameter set may include ⁇ number of sub-channels, sending resource reservation interval ⁇ .
  • the second transmission parameter set may include one, and the third transmission parameter set may include multiple.
  • the second transmission parameter set may include multiple, and the third transmission parameter set may also include multiple.
  • the second transmission parameter set may include multiple, and the third transmission parameter set may include one.
  • the second transmission parameter set and the third transmission parameter set may each have only one.
  • the N 1 transmission parameters included in the second transmission parameter set may include the first transmission parameter.
  • the second transmission parameter set may be determined in the following manner: determining a first parameter set, the first parameter set being a parameter set including optimal values of M first transmission parameters among the M parameter sets, the M first transmission parameters respectively belonging to the M parameter sets; and determining that the N 1 transmission parameters included in the second transmission parameter set are the N 1 transmission parameters included in the first parameter set.
  • the optimal value of the first transmission parameter is the minimum value; if the first transmission parameter is the number of subchannels, then the optimal value of the first transmission parameter can be the maximum value.
  • the values of the transmission priorities in the five transmission parameter sets satisfy the following relationship: Prio TX1 ⁇ Prio TX2 ⁇ Prio TX3 ⁇ Prio TX4 ⁇ Prio TX5 . If the transmission parameters in the second transmission parameter set include ⁇ transmission priority, remaining packet delay margin ⁇ ; the transmission parameters in the third transmission parameter set include ⁇ number of subchannels, sending resource reservation interval ⁇ , then the transmission parameters in the first transmission parameter set are from SET 1 .
  • the first transmission parameter also needs to meet the first transmission parameter threshold.
  • the difference between the best value and the worst value of the first transmission parameter also needs to meet the first transmission parameter difference threshold.
  • the N 1 transmission parameters included in the second transmission parameter set may be optimal values of the N 1 transmission parameters in the M transmission parameter sets.
  • the transmission parameters in the second transmission parameter set include ⁇ transmission priority, remaining packet delay margin ⁇
  • the values of the transmission priorities in the five transmission parameter sets satisfy the following relationship: Prio TX1 ⁇ Prio TX2 ⁇ Prio TX3 ⁇ Prio TX4 ⁇ Prio TX5
  • the values of the remaining packet delay margins in the five transmission parameter sets satisfy the following relationship remaining PDB 2 ⁇ remaining PDB 3 ⁇ remaining PDB 1 ⁇ remaining PDB 4 ⁇ remaining PDB 5
  • the transmission priority in the second transmission parameter set is Prio TX1
  • the remaining packet delay margin is remaining PDB 2 .
  • the number of second transmission parameter sets may be determined according to the number of transmission parameter sets including the optimal values of N 1 transmission parameters. Assuming that the number of second transmission parameter sets is Num 1 , then Num 1 second transmission parameter sets correspond one-to-one to Num 1 transmission parameter sets in the M transmission parameter sets, and each of the Num 1 second transmission parameter sets includes N 1 transmission parameters in the corresponding transmission parameter set. Each of the Num 1 transmission parameter sets includes the optimal values of one or more transmission parameters in the N 1 transmission parameters.
  • the transmission parameters in the second transmission parameter set include ⁇ transmission priority, remaining packet delay margin ⁇ . If the values of the transmission priorities in the five transmission parameter sets satisfy the following relationship: Prio TX1 ⁇ Prio TX2 ⁇ Prio TX3 ⁇ Prio TX4 ⁇ Prio TX5 , and the values of the remaining packet delay margins in the five transmission parameter sets satisfy the following relationship: remaining PDB 2 ⁇ remaining PDB 3 ⁇ remaining PDB 1 ⁇ remaining PDB 4 ⁇ remaining PDB 5 , then two second transmission parameter sets can be determined, the transmission priority in the first second transmission parameter set is Prio TX1 , and the remaining packet delay margin is remaining PDB 1 ; the transmission priority in the second first target transmission layer eucalyptus set is Prio TX2 , and the remaining packet delay margin is remaining PDB 2 .
  • the transmission parameters in the first transmission parameter set are from a transmission parameter set including an optimal value of the first transmission parameter
  • the transmission parameters in the second transmission parameter set may be from any one or more of the M transmission parameter sets.
  • the transmission parameters in the second transmission parameter set include ⁇ transmission priority, remaining packet delay margin ⁇ and the transmission parameters in the second transmission parameter set are from SET 1. Then the transmission parameters ⁇ number of subchannels, transmission resource reservation interval ⁇ in the third transmission parameter set may be from any one or more of SET 1 to SET 5 .
  • the transmission parameters in the third transmission parameter set may be ⁇ transmission priority, remaining packet delay margin ⁇ in SET 1 .
  • the transmission parameters included in the third transmission parameter set may come from a transmission parameter set including the optimal value of the number of subchannels or the transmission resource reservation interval.
  • the transmission parameters included in the third transmission parameter set may come from a transmission parameter set including the minimum value of the transmission resource reservation interval.
  • the transmission resource reservation interval ⁇ in the third transmission parameter set may be ⁇ the number of subchannels, the transmission resource reservation interval ⁇ in SET 3 .
  • the transmission parameters in the third transmission parameter set are the optimal values of the transmission parameters in SET 1 to SET 5.
  • the transmission parameters in the third transmission parameter set are the number of subchannels and the transmission resource reservation interval
  • the relationship between the two transmission parameters in SET 1 to SET 5 is as follows: P rsvp_TX3 ⁇ P rsvp_TX2 ⁇ P rsvp_TX1 ⁇ P rsvp_TX4 ⁇ P rsvp_TX5 , L subCH1 ⁇ L subCH2 ⁇ L subCH3 ⁇ L subCH4 ⁇ L subCH5 .
  • the number of subchannels in the third transmission parameter set is L subCH5
  • the transmission resource reservation interval is P rsvp_TX3 .
  • there may be five third transmission parameter sets and the five third transmission parameter sets respectively include the number of subchannels and the transmission resource reservation intervals in the five transmission parameter sets.
  • there may be four third transmission parameter sets and the four third transmission parameter sets respectively include the number of subchannels and the transmission resource reservation intervals in SET 2 to SET 5.
  • there may be two third transmission parameter sets and the two third transmission parameter sets respectively include the number of subchannels and the transmission resource reservation interval of SET 1 and the number of subchannels and the transmission resource reservation interval in the transmission parameter set with the lowest transmission priority value among SET 2 to SET 5 .
  • the number of the third transmission parameter sets can be determined according to the value of the number of subchannels and the transmission resource reservation interval. If the transmission parameter set containing the optimal value of the number of subchannels is different from the transmission parameter set containing the optimal value of the transmission resource reservation interval, then there can be two third transmission parameter sets, the number of subchannels in one of the two third transmission parameter sets is the optimal value of the number of subchannels, and the transmission resource reservation interval is the transmission resource reservation interval in the transmission parameter set containing the optimal value of the number of subchannels; the transmission resource reservation interval of the other of the two third transmission parameter sets is the optimal value of the transmission resource reservation interval, and the number of subchannels is the number of subchannels in the transmission parameter set containing the optimal value of the transmission resource reservation interval.
  • the transmission parameter set containing the optimal value of the number of subchannels is the same as the transmission parameter set containing the optimal value of the transmission resource reservation interval, then there can be only one third transmission parameter set, and the number of subchannels and the transmission resource reservation interval in the third transmission parameter set are the optimal values of the number of subchannels and the optimal values of the transmission resource reservation interval.
  • determining at least one first transmission parameter set based on M transmission parameter sets includes: determining N target transmission parameters, the N target transmission parameters are respectively the optimal values of the N transmission parameters in the M transmission parameter sets; and determining that the first transmission parameter set includes the N target transmission parameters.
  • the first transmission parameter set includes ⁇ Prio TX1 , remaining PDB 2 , L subCH5 , P rsvp_TX1 ⁇ .
  • the determining of at least one first transmission parameter set based on the M transmission parameter sets includes: determining N 3 target transmission parameters, the N 3 target transmission parameters are respectively the optimal values of the N 3 transmission parameters in the M transmission parameter sets; and determining that the first transmission parameter set includes the N 3 target transmission parameters.
  • the number of the first transmission parameter sets may be one, or two or more. If the number of the first transmission parameter sets is two or more, each first transmission parameter set includes the N 3 first transmission parameter sets.
  • N 3 is a positive integer greater than or equal to 1 and less than N.
  • N 3 transmission parameters include transmission priority and remaining packet delay margin
  • the minimum value of the transmission priority in the five transmission parameter sets is Prio TX1
  • the minimum value of the remaining packet delay margin is remaining PDB 2 .
  • multiple first transmission parameter sets can be determined, and each of the multiple first transmission parameter sets includes transmission priority, remaining packet delay margin, number of subchannels, and transmission resource reservation interval, but the transmission priority in each first transmission parameter set is Prio TX1 , and the remaining packet delay margin is remaining PDB 2 .
  • the values of the remaining transmission parameters in each first transmission parameter set can be determined according to the transmission priority in SET 1 to SET 5 .
  • the method for determining the remaining transmission parameters in each first transmission parameter set may refer to the method for determining the transmission parameters in the third transmission parameter set.
  • the transmission parameters included in the first transmission parameter set in the above embodiments are all determined according to the optimal values in the M transmission parameter sets. In other embodiments, the transmission parameters included in the first transmission parameter set may also be determined according to the average value of the transmission parameters in the M transmission parameter sets.
  • the transmission priority in the first transmission parameter set may be the average value of M transmission priorities.
  • the transmission priority in the first transmission parameter set may be the average value of M' transmission priorities with the smallest transmission priority value among the M transmission priorities.
  • M' may be a value preset, pre-configured, or indicated by a high-level signaling, or M' may be determined based on a ratio and M of a pre-configured, preset value, or high-level signaling.
  • the average value here may be an arithmetic mean or a weighted mean, etc., which is not limited in the embodiments of the present application.
  • the average value if the average value is not an integer, the average value may be rounded. Similarly, if the value determined based on a ratio and M is a non-integer value, the non-integer value may be rounded to obtain M'.
  • the embodiments of the present application do not limit the rounding method in the above rounding step, for example, it may be rounding up, rounding down, or rounding by rounding off.
  • the number of resource block sets of any two of the M data to be sent is the same. For example, assuming that there are K data to be sent, the M data to be sent can be first screened out from the K data to be sent. The number of resource block sets of any two of the M data to be sent is the same, and the number of resource block sets of any one of the K data except the M data is different from the number of resource block sets of any one of the M data.
  • the number of subchannels in the first transmission parameter set is determined to be a preset or preconfigured number of resource block sets.
  • the sending resource reservation intervals in any two transmission parameter sets among the M sending transmission parameter sets are in a positive integer multiple relationship. For example, assuming that there are P data to be sent in total, the M data to be sent can be first determined from the P data to be sent, and the sending resource reservation intervals in the transmission parameter sets of any two data to be sent among the M data to be sent are in a positive integer multiple relationship, and the sending resource reservation interval in the transmission parameter set of any data among the P data to be sent except the M data to be sent and the sending resource reservation interval in the transmission parameter set of any data among the M data to be sent are not in a positive integer multiple relationship.
  • the communication device before determining at least one first transmission parameter set, the communication device also receives configuration information from a network device, where the configuration information is used to instruct the communication device to use single-TB continuous transmission, use multi-TB continuous transmission, or support both single-TB and multi-TB continuous transmission.
  • the specific implementation manner of the communication device determining the candidate resources for transmitting data may refer to the embodiment shown in Figure 5.
  • the specific implementation manner of the communication device determining the transmission power when transmitting data may refer to the embodiment shown in Figure 12.
  • FIG5 is a method for determining candidate transmission resources according to an embodiment of the present application.
  • the method shown in FIG5 can be performed by a communication device.
  • the communication device referred to in the embodiment of the present application can be a terminal device, a network device (such as an access network device), or a positioning management device; the communication device can also be a component of the above-mentioned device (such as a chip, a chip system and/or a circuit, etc.).
  • a first communication device determines a first resource, where the first resource includes M first time domain units that are continuous in the time domain, where M is an integer greater than or equal to 2.
  • the first communication device determines a second resource of the second communication device in a perception window, the second resource includes N second time domain units, wherein a third resource overlaps with the first resource, the third resource is a reserved resource corresponding to the second resource in the selection window, and N is an integer greater than or equal to 1.
  • N is an integer greater than or equal to 1.
  • the N second time domain units are continuous in the time domain
  • the third resource includes L third time domain units, and L is an integer greater than or equal to 1.
  • the first communication device determines a candidate resource for continuous transmission in the selection window according to the first resource, the second resource and the third resource.
  • the first communication device can determine the second resource of the second communication device by receiving the SCI sent by the second communication device, and determine the resource (i.e., the third resource) reserved by the second communication device in the selection window according to the resource reservation interval in the SCI.
  • the SCI can be sent by the second communication device to the first communication device, or it can be monitored by the first communication device when the second communication device sends it to other communication devices.
  • the first communication device can receive the SCI sent by the second communication device through broadcast or multicast.
  • the overlap between the third resource and the first resource includes a time domain overlap.
  • at least one third time domain unit in the third resource overlaps with at least one first time domain unit in the first resource.
  • the overlap between the third resource and the first resource includes time domain overlap and frequency domain overlap.
  • at least one third time domain unit in the third resource overlaps with at least one first time domain unit in the first resource
  • At least one third frequency domain unit overlaps with at least one first frequency domain unit in the first resource.
  • Each of the M first time domain units has a corresponding frequency domain resource.
  • the M first frequency domain units correspond one-to-one to the M first time domain units.
  • the size and position of the M first frequency domain units can be completely the same or partially the same.
  • each of the L third time domain units also has a corresponding frequency domain resource.
  • the L third frequency domain units correspond one-to-one to the L third time domain units.
  • the size and position of the L third frequency domain units can be completely the same or partially the same.
  • time domain resources occupied by one or more of the M first time domain units are the same as the time domain resources occupied by one or more of the L third time domain units, it can be considered that the first resources overlap with the third resources in the time domain.
  • the frequency domain resources occupied by one or more of the L first frequency domain units are the same as the frequency domain resources occupied by one or more of the L third frequency domain units, it can be considered that the first resources overlap with the third resources in the frequency domain.
  • the overlap referred to in the embodiments of the present application may be a complete overlap or a partial overlap.
  • the complete overlap of two time domain units means that the time domain resources occupied by the two time domain units are exactly the same.
  • two time domain units time domain unit 1 and time domain unit 2.
  • time domain unit 1 occupies time slot 2 in subframe 0
  • time domain unit 2 also occupies time slot 2 in subframe 0
  • the two time domain units can be said to completely overlap.
  • the partial overlap of two time domain units means that the time domain resources occupied by the two time domain units are partially the same. Take time domain unit 1 and time domain unit 2 as examples. Assume that time slot 2 in subframe 0 includes two mini time slots.
  • Time domain unit 1 occupies two mini time slots in time slot 2 in subframe 0, and time domain unit 2 occupies the first mini time slot in time slot 2 in subframe 0.
  • the two time domain units can be said to partially overlap.
  • the complete overlap of two frequency domain units can mean that the frequency domain resources occupied by the two frequency domain units are exactly the same, or that the frequency domain resources occupied by the two frequency domain units are partially the same.
  • two resources overlap part or all of the time domain resources of the two resources overlap, and on these overlapping time domain resources, part or all of the frequency domain resources overlap.
  • the first resource is located in the resource selection window.
  • the first resource includes five time-frequency units that are continuous in the time domain, which can be respectively referred to as S 11 , S 12 , S 13 , S 14 and S 15 .
  • the second resource located in the perception window also includes five time-frequency units that are continuous in the time domain, which can be respectively referred to as S 21 , S 22 , S 23 , S 24 and S 25 .
  • the third resource is a reserved resource of the second resource in the resource selection window.
  • the third resource also includes five time-frequency units that are continuous in the time domain, which can be respectively referred to as S 31 , S 32 , S 33 , S 34 and S 35 .
  • S 34 in the third resource overlaps with S 11 in the first resource
  • S 35 in the third resource overlaps with S 12 in the first resource.
  • the first resource is located in the resource selection window.
  • the first resource includes five time-frequency units that are continuous in the time domain, which can be respectively referred to as S11 , S12 , S13 , S14 and S15 .
  • the second resource located in the perception window includes four time-frequency units that are continuous in the time domain, which can be respectively referred to as S21 , S22 , S23 and S24 .
  • the third resource is a reserved resource of the second resource in the resource selection window.
  • the third resource also includes four time-frequency units that are continuous in the time domain, which can be respectively referred to as S31 , S32 , S33 and S34 .
  • S34 in the third resource overlaps with S11 in the first resource.
  • the first resource is located in the resource selection window.
  • the first resource includes four time-frequency units that are continuous in the time domain, which can be respectively referred to as S11 , S12 , S13 and S14 .
  • the second resource located in the perception window includes four time-frequency units that are continuous in the time domain, which can be respectively referred to as S21 , S22 , S23 and S24 .
  • the third resource is a reserved resource of the second resource in the resource selection window.
  • the third resource also includes four time-frequency units that are continuous in the time domain, which can be respectively referred to as S31 , S32 , S33 and S34 .
  • S31 in the third resource overlaps with S14 in the first resource.
  • the first resource is located in the resource selection window.
  • the first resource includes five time-frequency units that are continuous in the time domain, which can be respectively referred to as S 11 , S 12 , S 13 , S 14 and S 15 .
  • the second resource located in the perception window includes a time-frequency unit, which can be referred to as S 21 .
  • the third resource is a reserved resource of the second resource in the resource selection window.
  • the third resource also includes a time-frequency unit, which can be referred to as S 31 .
  • S 31 in the third resource overlaps with S 13 in the first resource.
  • the reserved resources of the second resource in the resource selection window may appear only once (for example, as shown in FIG. 6 to FIG. 8 ).
  • the reserved resources of the second resource in the resource selection window may also appear periodically.
  • the first resource is located in the resource selection window.
  • the first resource includes five time-frequency units that are continuous in the time domain, which can be respectively referred to as S 11 , S 12 , S 13 , S 14 and S 15.
  • the second resource located in the perception window includes four time-frequency units that are continuous in the time domain, which can be respectively referred to as S 21 , S 22 , S 23 and S 24.
  • the reserved resources of the second resource in the resource selection window are repeated with a period of D 1.
  • the third resource located in the resource selection window includes 6 time-frequency units, and the 6 time-frequency resources can be respectively referred to as S 31 , S 32 , S 33 , S 34 , S 35 and S 36 , where S 31 , S 32 , S 33 and S 34 are four time-frequency units that are continuous in the time domain, and the time interval between S 35 and S 31 is the period D 1 .
  • the first resource is located in the resource selection window.
  • the first resource includes five time-frequency units that are continuous in the time domain, which can be respectively referred to as S11 , S12 , S13 , S14 and S15 .
  • the second resource located in the perception window includes four time-frequency units that are continuous in the time domain, which can be respectively referred to as S21 , S22 , S23 and S24 .
  • the reserved resources of the second resource in the resource selection window are repeated with a period of D1 .
  • the third resource located in the resource selection window includes 8 time-frequency units, which can be respectively called S31 , S32 , S33 , S34 , S35 , S36, S37 and S38 , where S31 , S32 , S33 and S34 are four time-frequency units continuous in the time domain, S35 , S36 , S37 and S38 are four time-frequency units continuous in the time domain, and the time interval between S35 and S31 is period D2 .
  • the last time-frequency unit (i.e., S34 ) of the first four time-frequency units of the eight time-frequency units overlaps with the first time-frequency unit (i.e., S11 ) in the first resource; the first time-frequency unit (i.e., S35 ) of the last four time-frequency units overlaps with the last time-frequency unit (i.e., S15 ) in the first resource.
  • the X (for example, five or four) time-frequency units continuous in the time domain referred to in the embodiments of the present application means that there are X time-frequency units, and these X time-frequency units occupy X continuous time-domain units in the time domain.
  • the second resource includes N second time domain units
  • the third resource includes L third time domain units.
  • the number of time domain units included in the second resource may be equal to the number of time domain units included in the third resource, and the number of time domain units included in the second resource may not be equal to the number of time domain units included in the third resource.
  • the number of time domain units included in the second resource may be equal to, greater than, or less than the number of time domain units included in the third resource.
  • the number of time domain units included in the second resource is equal to the number of time domain units included in the third resource.
  • the number of time domain units included in the second resource is less than the number of time domain units included in the third resource.
  • the number of time domain units included in the second resource is greater than the number of time domain units included in the third resource.
  • the first resource is located in the resource selection window.
  • the first resource includes five time-frequency units that are continuous in the time domain, which can be respectively referred to as S 11 , S 12 , S 13 , S 14 and S 15.
  • the second resource located in the perception window includes four time-frequency units that are continuous in the time domain, which can be respectively referred to as S 21 , S 22 , S 23 and S 24.
  • the third resource located in the resource selection window includes 3 time-frequency units, and the 3 time-frequency units can be respectively referred to as S 31 , S 32 , and S 33. S 33 overlaps with S 11 .
  • the first communication device may determine a signal quality based on the second resource, and determine a candidate resource for continuous transmission based on the signal quality, the first resource, and the third resource.
  • the first communication device may determine the signal quality based on a second resource corresponding to a third resource overlapping with the first resource in a resource selection window.
  • the signal quality may be determined based on the RSRP of the N REF second time domain units.
  • N REF may be a positive integer greater than or equal to 1 and less than or equal to N.
  • the RSRP of a time domain unit is an RSRP value obtained by measuring a reference signal carried by a frequency domain resource in a time-frequency resource including the time domain unit.
  • the RSRP of the N REF second time domain units is the value of the RSRP obtained by measuring a reference signal carried by a frequency domain resource on the N REF second time domain units.
  • the N REF second time domain units include the time domain units of S 24 and S 25 .
  • N REF second time domain units include S 24 time domain units.
  • N REF second time domain units include the time domain unit of S 21 .
  • N REF second time domain units include the time domain unit of S 21 .
  • N REF second time domain units include S 24 time domain units.
  • the N REF second time domain units include the time domain units of S 21 and S 24 .
  • N REF second time domain units include S 24 time domain units.
  • the RSRP of the second time domain unit can be used as the signal quality of the second resource.
  • the signal quality of the second resource may be a maximum value of RSRPs of the N REF second time domain units.
  • the signal quality of the second resource may be an average value of the RSRPs of the N REF second time domain units.
  • the signal quality of the second resource may be the RSRP of the first second time domain unit among the N REF second time domain units.
  • the signal quality of the second resource may be the RSRP of the last second time domain unit among the N REF second time domain units.
  • the signal quality of the second resource may be the RSRP of the second time domain unit with the highest transmission priority among the N REF second time domain units.
  • the first communications device may determine the signal quality of the second resource according to the RSRPs of the N second time domain units.
  • the RSRP of the second time domain unit can be used as the signal quality of the second resource.
  • the signal quality of the second resource may be a maximum value of the RSRPs of the N second time domain units.
  • the signal quality of the second resource may be an average value of the RSRPs of the N second time domain units.
  • the signal quality of the second resource may be the RSRP of the first second time domain unit among the N second time domain units.
  • the signal quality of the second resource may be the RSRP of the last second time domain unit among the N second time domain units.
  • the signal quality of the second resource may be the RSRP of the second time domain unit having the highest transmission priority among the N second time domain units.
  • the candidate resource may be determined according to the signal quality and a signal quality threshold.
  • the first communication device may store only one signal quality threshold. The first communication device determines the candidate resource according to the signal quality threshold and the signal quality.
  • the first communication device may store two or more signal quality thresholds.
  • the first communication device may determine a signal quality threshold (e.g., may be referred to as a first signal quality threshold) from the two or more signal quality thresholds, and then determine the candidate resource according to the first signal quality threshold and the signal quality.
  • a signal quality threshold e.g., may be referred to as a first signal quality threshold
  • the first communication device may include two signal quality thresholds, which may be respectively referred to as signal quality threshold 1 and signal quality threshold 2.
  • the signal quality threshold 1 may be determined as the first signal quality threshold
  • the signal quality threshold 2 may be determined as the first signal quality threshold.
  • the two signal quality thresholds are related to the transmission mode of the second communication device.
  • the signal quality threshold 1 is used as the first signal quality threshold; if the second communication device is a continuous multi-time domain unit transmission, the signal quality threshold 2 is used as the first signal quality threshold.
  • the signal quality threshold 1 and the signal quality threshold 2 are signaling configuration, preconfiguration or predefined.
  • the signal quality threshold 1 and the signal quality threshold 2 are independently configured through signaling.
  • the signal quality threshold 1 is configured for the transmission of a single time domain unit.
  • the signal quality threshold 2 is configured for the transmission of multiple continuous time domain units.
  • the signal quality threshold may also be related to the specific number of continuous time domain units included in the second resource.
  • the first communication device may include three signal quality thresholds, which may be respectively referred to as signal quality threshold 1, signal quality threshold 2 and signal quality threshold 3.
  • signal quality threshold 1 is the first signal quality threshold
  • signal quality threshold 2 is the first signal quality threshold
  • signal quality threshold 3 is the first signal quality threshold
  • the specific number of continuous time domain units included in the second resource for determining the signal quality threshold may be signaling configured, preconfigured or predefined.
  • the first communications device may determine that the candidate resources include the first resource.
  • the first communication device when the first communication device reports the first resource to a higher layer, it may only notify the higher layer that the first resource exists in the candidate resources, without reporting specific information of the first resource.
  • the first communication device when the first communication device reports the first resource to a higher layer, it may report specific information of the first resource (eg, the time-frequency resource location of the first resource) to the higher layer.
  • specific information of the first resource eg, the time-frequency resource location of the first resource
  • the first communication device may determine the candidate resource according to the L third time domain units and the M first time domain units.
  • the first communication device determines the candidate resource according to the L third time domain units and the M first time domain units, including: the first communication device determines the candidate resource according to the L third time domain units and the M first time domain units.
  • M1 overlapping time domain units in the time domain unit and the overlapping time domain units are the first M1 time domain units or the last M1 time domain units in the M first time domain units
  • the time-frequency resources of the overlapping time domain unit part in the first resource are excluded from the candidate resource set
  • M1 is a positive integer greater than or equal to 1 and less than M.
  • the first communication device reports the first resource to the upper layer, the overlapping part of the first resource is reported to the upper layer as an unavailable or non-recommended resource.
  • the value of M1 may be preconfigured, predefined, or indicated by a higher layer.
  • the first communication device may exclude S11 from candidate resources.
  • the first communication device may exclude S14 from candidate resources.
  • the first communication device may exclude S11 from candidate resources.
  • the time-frequency resource containing the overlapping time domain unit in the first resource is excluded from the candidate resource.
  • the first communication device reports the first resource to a higher layer, the overlapping portion of the first resource is reported to the higher layer as an unavailable or non-recommended resource.
  • the first communication device may exclude S 11 and S 15 from candidate resources.
  • the first communication device determines the candidate resource based on the L third time domain units and the M first time domain units, including: when the first communication device determines that the M first time domain units overlap with one of the L third time domain units and the overlapping time domain unit is located at a specified position, the first resource is excluded from the candidate resource.
  • the first communication device reports the first resource to a higher layer, the first resource is reported to the higher layer as an unavailable or unrecommended resource.
  • the designated location may be preconfigured, predefined, or indicated by a higher layer.
  • the designated position is any position except the first time domain unit and the last time domain unit of the M first time domain units.
  • the overlapping time domain unit is the third first time domain unit of the five first time domain units.
  • the first communication device can exclude the first resource from the candidate resources.
  • the first communication device reports the first resource to the upper layer, it reports the first resource to the upper layer as an unavailable or unrecommended resource.
  • the first communication device determines the candidate resource based on the L third time domain units and the M first time domain units, including: the first communication device determines that the M first time domain units overlap with at least one time domain unit of the L third time domain units; the first communication device determines that the M first time domain units include at least one group of continuous time domain units in addition to the at least one time domain unit, and each group of continuous time domain units in the at least one group of continuous time domain units includes at least M REF1 continuous time domain units, and M REF1 is a positive integer greater than or equal to 2 and less than M; the first communication device determines that the candidate resource includes the time-frequency resources corresponding to the at least one group of non-overlapping continuous time domain units.
  • the first communication device reports the time-frequency resources corresponding to the at least one group of non-overlapping continuous time domain units to a higher layer.
  • the value of M REF1 may be preconfigured, predefined, or indicated by a higher layer.
  • M REF1 is equal to 2.
  • the first group of continuous time domain units in the two groups of continuous time domain units includes the time domain units in time-frequency units S 11 and S 12
  • the second group of continuous time domain units includes the time domain units in time-frequency units S 14 and S 15. It can be seen that the number of time domain units included in each group of continuous time domain units in the two groups of continuous time domain units is equal to M REF1 .
  • the first communication device can determine that the candidate resources include these two groups of continuous time domain units.
  • the first communication device reports the time-frequency resources corresponding to the two groups of continuous time domain units to the upper layer.
  • the time domain unit overlap determined when excluding resources in the above embodiment includes: the time domain unit overlaps and the frequency domain units corresponding to the time domain units overlap partially or completely.
  • the M first time domain units and the L third time domain units mentioned in the above embodiment have M 1 time domain units overlapped, which can be M 1 time domain units overlapped and the frequency domain units corresponding to the M 1 time domain units overlap partially or completely.
  • the M first time domain units and the L third time domain units mentioned in the above embodiment have one time domain unit overlapped, which can be a first time domain unit overlapped with a third time domain unit, and the two frequency domain units corresponding to the two time domain units overlap partially or completely.
  • the method also includes: when the number of candidate resources determined in the selection window is less than a candidate resource number threshold, the first communication device reselects candidate resources based on resources comprising M’ time domain units that are continuous in the time domain, where M’ is an integer greater than or equal to 2 and less than M.
  • the first communication device reselects the candidate resource in the selection window, including: the first communication device determines a fourth resource in the selection window, the fourth resource includes M' fourth time domain units that are continuous in the time domain, M' is an integer greater than or equal to 2 and less than M; the first communication device determines a fifth resource of the third communication device in the perception window, the fifth resource includes N' fifth time domain units.
  • the sixth resource overlaps with the fourth resource, the sixth resource is the reserved resource corresponding to the fifth resource in the selection window, the N' is an integer greater than or equal to 1, and when N' is greater than 1, the N' fifth time domain units are continuous in the time domain, and the sixth resource includes L' sixth time domain units, and L' is an integer greater than or equal to 1;
  • the first communication device determines the reselected resource for continuous transmission in the selection window according to the fourth resource, the fifth resource and the sixth resource.
  • the specific implementation method of the first communication device reselecting according to the fourth resource, the fifth resource and the sixth resource is similar to the method of determining the candidate resource according to the first resource, the second resource and the third resource, and will not be repeated here for the sake of brevity.
  • the first communication device determines that only 7 resources in the resource set include 5 consecutive time domain units, and the number of consecutive time domain units in the remaining resources is less than 5. Then, the first communication device can determine to repeat the resource selection process shown in Figure 5 with the fourth resource including 3 consecutive time domain units as a condition to obtain a reselected candidate resource.
  • the first communication determines the eighth resource in the perception window, and the first device determines the reserved resource of the eighth resource according to all configured resource reservation intervals. If the time domain resource where the reserved resource of the eighth resource is located overlaps with the first resource, the first resource is excluded from the candidate resources.
  • the first communication determines the eighth resource in the perception window, and the first device determines the reserved resource of the eighth resource according to all configured resource reservation intervals. If the time domain resource where the reserved resource of the eighth resource is located overlaps with the first resource, the resource overlapping with the first resource is excluded from the candidate resources.
  • the first communication device determines the number of available subchannels and/or resource sets of the candidate resource. Optionally, if the sizes of available subchannels on different time domain units in the reported candidate resource are different, the sizes of multiple available subchannels may be reported.
  • the first communications device sends part of the data to be sent when determining that the number of candidate resources is less than a number threshold.
  • the first communication device may select the data to be sent according to the priority of the data. For example, the first communication device may preferentially send data with a high priority. In other words, the priority of the data that can be sent is higher than the priority of the data that is not sent.
  • the first communication device when the first communication device determines that the number of candidate resources is less than a quantity threshold, the first communication device may select the data to be sent according to the order in which the data are determined. The first communication device may send the data determined first.
  • the first communication device may select the data to be sent according to the type of data. For example, the first communication device may first send the data carried by the control channel, and if there are remaining resources after sending the data carried by the control channel, the first communication device may continue to send the data carried by other channels (such as data carried by the shared channel).
  • the first communication device compares the transmission priority of the first communication device, the transmission priority of the second communication device, and the priority threshold; the first communication device determines that the seventh resource is preempted when it is determined that the transmission priority of the second communication device is higher than the transmission priority of the first communication device, and the transmission priority of the second communication device is higher than the priority threshold, wherein the seventh resource is a resource indicated by a higher layer, the candidate resources do not include the seventh resource, and the priority threshold is determined according to the data transmission mode of the second communication device and the data transmission mode of the first communication device, the data transmission mode of the second communication device is continuous time domain unit or single time domain unit transmission, and the data transmission mode of the first communication device is continuous time domain unit or single time domain unit transmission.
  • the priority threshold is signaling configuration, preconfigured or predefined.
  • the priority threshold is independently configured for continuous time domain unit and single time domain unit transmission through signaling.
  • the first communication device receives first priority indication information sent by the second communication device, and the first priority indication information is used to indicate the transmission priority of the second resource.
  • the first priority indication information can be carried in an SCI or MAC control resource unit (control element, CE).
  • the first priority indication information can be indicated by indication information of a channel occupancy time (COT) structure, and/or COT sharing information.
  • the first priority indication information indicates the priority of multiple consecutive time domain units on the second resource sent by the second communication device.
  • the transmission priority of the second resource can be determined according to the method shown in Figure 4.
  • the transmission priority of the second resource is the transmission priority of data transmitted using the second resource.
  • the transmission priority of the second resource is the transmission priority in the first transmission parameter set in the method shown in Figure 4.
  • each of the multiple data to be transmitted over the multiple consecutive time domain units has a corresponding transmission parameter set, and the transmission parameter set has a transmission priority.
  • the transmission priority of the second resource may be the transmission priority in the transmission parameter set corresponding to any one of the multiple data.
  • the first communication device receives second priority indication information sent by the second communication device, where the second priority indication information is used to indicate the transmission priority of each data sent using the second resource.
  • FIG. 12 is a schematic flowchart of a method for sending data determined according to an embodiment of the present application.
  • M power parameter sets where the M power parameter sets correspond one-to-one to M continuous time domain units, and M is a positive integer greater than or equal to 2.
  • the first transmission power is determined based on the M power parameter sets, including: determining M first powers, the M first powers corresponding one-to-one to the M power parameter sets, each power of the M first powers is determined based on the corresponding power parameter set, and determining the maximum value of the M first powers as the first transmission power.
  • Each of the M power parameter sets may include N parameters, where N is a positive integer greater than or equal to 1.
  • the N parameters may include any one or more of path loss, priority, and bandwidth.
  • M first powers may be determined respectively according to these parameters.
  • the three power parameter sets may be respectively referred to as power parameter set 1, power parameter set 2 and power parameter set 3.
  • Power parameter set 1, power parameter set 2 and power parameter set 3 may be respectively represented as P_SET 1 , P_SET 2 and P_SET 3 .
  • P_SET 1 ⁇ LOSS 1 , Prior 1 , BW 1 ⁇ ;
  • P_SET 2 ⁇ LOSS 2 , Prior 2 , BW 2 ⁇ ;
  • P_SET 3 ⁇ LOSS 3 , Prior 3 , BW 3 ⁇ .
  • LOSS 1 , LOSS 2 and LOSS 3 are the path losses in P_SET 1 , P_SET 2 and P_SET 3 respectively.
  • Prior 1 , Prior 2 and Prior 3 are the priorities in P_SET 1 , P_SET 2 and P_SET 3 respectively.
  • BW 1 , BW 2 and BW 3 are the bandwidths in P_SET 1 , P_SET 2 and P_SET 3 respectively.
  • the first transmission power may be Pwr 1 .
  • the first transmit power is determined based on the M power parameter sets, including: determining M first powers, the M first powers corresponding one-to-one to the M power parameter sets, each of the M first powers is determined based on the corresponding power parameter set, and determining that the maximum power value on each unit frequency domain resource among the M first powers is the transmit power of the first transmit power on each unit frequency domain resource.
  • the unit frequency domain resource is a subcarrier, a physical resource block (PRB), or a subchannel.
  • PRB physical resource block
  • the power value of the unit frequency domain resource corresponding to the first time domain unit is Pu1
  • the power value of the unit frequency domain resource corresponding to the second time domain unit is Pu2
  • the power value of the unit frequency domain resource corresponding to the third time domain unit is Pu3
  • Pu1 > Pu2 > Pu3 is the transmission power of each unit frequency domain resource of the first transmission power.
  • the first transmit power is determined based on the M power parameter sets, including: determining M first powers, the M first powers corresponding one-to-one to the M power parameter sets, each power of the M first powers is determined based on the corresponding power parameter set, and determining that the minimum power value on each unit frequency domain resource among the M first powers is the transmit power of the first transmit power on each unit frequency domain resource.
  • the power value of the unit frequency domain resource corresponding to the first time domain unit is Pu1
  • the power value of the unit frequency domain resource corresponding to the second time domain unit is Pu2
  • the power value of the unit frequency domain resource corresponding to the third time domain unit is Pu3
  • Pu1 > Pu2 > Pu3 is the transmission power of each unit frequency domain resource of the first transmission power.
  • the M data may be directly transmitted using the first transmission power.
  • the transmission power of the data transmitted on each time domain unit in the M consecutive time domain units is the first transmission power.
  • the sending of data on the M continuous time domain units according to the first sending power includes: determining M second sending powers, the jth second sending power of the M second sending powers being determined according to the first sending power, the number of frequency domain resources of the first time domain unit and the number of frequency domain resources of the jth time domain unit of the M continuous time domain units, the first sending power being determined according to a sending power parameter corresponding to the first time domain unit; and sending data on the M continuous time domain units using the M second sending powers respectively.
  • the j-th second transmit power is based on the first transmit power, the number of RBs of the first time domain unit, and the number of RBs of the j-th time domain unit in the M consecutive time domain units, satisfying the following formula:
  • i represents the index of the first time domain unit of M consecutive time domain units
  • j represents the index of the j-th time domain unit among the M consecutive time domain units
  • P(i+j) is the j-th second transmit power
  • P(i+i m ) is the first transmit power
  • M RB (i+j) is the number of frequency domain resources of the j-th time domain unit
  • M RB,Mi (i+i m ) is the number of frequency domain resources of the first time domain unit.
  • each group of transmit power parameters in the M transmit power parameter sets includes N transmit power parameters
  • determining the first transmit power based on the M transmit power parameter sets includes: determining a first transmit power parameter set based on the M transmit power parameter sets, the first transmit power parameter set including the N transmit power parameters; and determining the first transmit power based on the first transmit power parameter set.
  • the priority in the first transmit power parameter set is any one of the following: the priority in the first transmit power parameter set is any one of the following: the highest priority among the M power parameter sets; the transmission priority in the power parameter set that determines the maximum value of the M first powers among the M power parameter sets; the transmission priority in the power parameter set that determines the minimum value of the M first powers among the M power parameter sets; the transmission priority of the power parameter set corresponding to the maximum power value on each unit frequency domain resource among the M first powers; the transmission priority of the power parameter set corresponding to the minimum power value on each unit frequency domain resource among the M first powers.
  • P_SET 1 , P_SET 2 and P_SET 3 as an example, assume that Prior 1 >Prior 2 >Prior 3 , Pwr 1 >Pwr 2 >Pwr 3 , Pu1 > Pu2 > Pu3 .
  • the priority in the first transmit power parameter set is the highest priority in the M power parameter sets, that is, the priority in the first transmit power parameter set is Prior 1 .
  • the priority in the first transmit power parameter set is the priority of transmission in the power parameter set that determines the maximum value of the M first powers in the M power parameter sets.
  • the maximum value of the first power is Prior 1
  • the corresponding power parameter set is P_SET 1. Therefore, the priority in the first transmit power parameter is Prior 1 .
  • the priority in the first transmit power parameter set is the transmission priority in the power parameter set that determines the minimum value of the M first powers in the M power parameter sets.
  • the minimum value of the first power is Prior 3
  • the corresponding power parameter set is P_SET 3. Therefore, the priority in the first transmit power parameter is Prior 3 .
  • the priority in the first transmit power parameter set is the maximum power value on each unit frequency domain resource among the M first powers, and the transmission priority of the corresponding power parameter set.
  • the maximum power value of the unit frequency domain resource is Pu1
  • the corresponding power parameter set is P_SET 1. Therefore, the priority in the first transmit power parameter is Prior 1 .
  • the priority in the first transmit power parameter set is the minimum power value on each unit frequency domain resource among the M first powers, and the corresponding power parameter set transmission priority.
  • the minimum power value of the unit frequency domain resource is Pu3
  • the corresponding power parameter set is P_SET 3. Therefore, the priority in the first transmit power parameter is Prior 3 .
  • determining the first transmit power according to the first transmit power parameter set includes: determining a channel busy rate (CBR) value for sending data on the M consecutive time domain units according to a priority in the first transmit power parameter set; determining a maximum power value for sending data on the M consecutive time domain units according to the CBR value; and determining the first transmit power value according to the maximum power value.
  • CBR channel busy rate
  • the path loss includes any one of the following: the maximum path loss on the M consecutive time domain units; the minimum path loss on the M consecutive time domain units; the average path loss on the M consecutive time domain units; the path loss on the first time domain unit on the M consecutive time domain units; the path loss on the last time domain unit on the M consecutive time domain units; the path loss on the time domain unit with the highest transmission priority on the M consecutive time domain units.
  • determining the first transmit power according to the first transmit power parameter set includes: determining the sideline power and/or the cellular link power according to the path loss; determining the first transmit power according to the sideline power and/or the cellular link power.
  • FIG13 is a schematic structural block diagram of another communication device according to an embodiment of the present application.
  • the communication device 1300 shown in FIG13 includes: a processing module 1301 and a sending module 1302.
  • the processing module 1301 can be implemented by a processor, and the sending module 1302 can be implemented by a transmitter.
  • the communication device 1300 can implement each step in the embodiment shown in FIG4.
  • the processing module 1301 is configured to determine at least one first transmission parameter set according to M transmission parameter sets, wherein the M transmission parameter sets are transmission parameter sets of M data to be sent, each transmission parameter set in the M transmission parameter sets includes N transmission parameters, the M data to be sent are data to be sent on continuous time domain units, and the at least one first transmission parameter set includes Contains the N transmission parameters, where N is a positive integer greater than or equal to 1, and M is a positive integer greater than or equal to 2.
  • the processing module 1301 is further configured to determine candidate resources according to the at least one first transmission parameter set.
  • the sending module 1302 is used to send part or all of the M to-be-sent data in continuous time units according to the candidate resources.
  • processing module 1301 and the sending module 1302 can be found in the above embodiments, and will not be described again here for the sake of brevity.
  • FIG14 is a schematic structural block diagram of a communication device according to an embodiment of the present application.
  • the communication device 1400 shown in FIG14 includes: a processing module 1401 and a resource selection module 1402.
  • the processing module 1401 and the resource selection module 1402 can be implemented by a processor.
  • the communication device 1400 can implement each step in the embodiment shown in FIG5.
  • the processing module 1401 is configured to determine a first resource in a selection window, where the first resource includes N first time domain units that are continuous in the time domain.
  • the processing module 1401 is also used to determine the second resource of the second communication device in the perception window, the second resource includes N second time domain units, wherein the third resource overlaps with the first resource, the third resource is the reserved resource corresponding to the second resource in the selection window, and N is an integer greater than or equal to 1.
  • N is an integer greater than or equal to 1.
  • the N second time domain units are continuous in the time domain
  • the third resource includes L third time domain units, and L is an integer greater than or equal to 1.
  • the resource selection module 1402 is used to determine candidate resources for continuous transmission in the selection window according to the first resource, the second resource and the third resource.
  • processing module 1401 and the resource selection module 1402 can be found in the above embodiments, and will not be described again for the sake of brevity.
  • FIG15 is a schematic structural block diagram of a communication device provided according to an embodiment of the present application.
  • the communication device 1500 shown in FIG15 includes a processing module 1501 and a sending module 1502.
  • the processing module 1501 can be implemented by a processor, and the sending module 1502 can be implemented by a transmitter.
  • the communication device 1500 can implement each step of the method shown in FIG12.
  • the processing module 1501 is used to obtain M transmit power parameter sets, where the M transmit power parameter sets correspond one-to-one to M continuous time domain units, and M is a positive integer greater than or equal to 2.
  • the processing module 1501 is further configured to determine a first transmit power according to the M transmit power parameter sets.
  • the sending module 1502 is configured to send data on the M consecutive time domain units according to the first sending power.
  • processing module 1501 and the sending module 1502 can be found in the above embodiments, and for the sake of brevity, they will not be repeated here.
  • the present application also provides a communication device, which includes: a processing module, a sending module and a receiving module.
  • the communication device can implement the functions implemented by any two or all of the communication devices 1300, 1400 and 1500.
  • FIG 16 is a block diagram of a communication device according to an embodiment of the present application.
  • the communication device 1600 shown in Figure 16 includes a processor 1601, which can be used to process the communication protocol and communication data, control the communication device, execute software programs, process data of software programs, etc.
  • the communication device 1600 may further include a memory 1602.
  • the memory 1602 is mainly used to store software programs and data.
  • the communication device 1600 may further include a transceiver 1603.
  • the transceiver may also be referred to as a transceiver unit, a transceiver, a transceiver device, etc.
  • a device used to implement a receiving function in the transceiver 1603 may be regarded as a receiving module
  • a device used to implement a sending function in the transceiver 1603 may be regarded as a sending module, that is, the transceiver 1603 includes a receiving module and a sending module.
  • the receiving module may also be sometimes referred to as a receiver, a receiver, or a receiving circuit, etc.
  • the sending module may also be sometimes referred to as a transmitter, a transmitter, or a transmitting circuit, etc.
  • the communication device 1600 may be a terminal device or a device for a terminal device (eg, a chip, a circuit, etc.).
  • the communication device 1600 may be a network device or a device used for a network device (eg, a chip, a circuit, etc.).
  • the communication device 1600 may also include a radio frequency circuit and an antenna.
  • the radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals.
  • the antenna is mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves.
  • the antenna and radio frequency circuit with transceiver functions can be regarded as the transceiver 1603 of the communication device 1600.
  • the communication device 1600 may also include an input/output interface.
  • the input/output interface may be used to obtain data and send the obtained data to the processor 1601 and/or the memory 1602.
  • the input/output interface may also be used to send data generated by the processor 1601 to other devices.
  • FIG16 For ease of explanation, only one memory and processor are shown in FIG16. In an actual product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or a storage device, etc.
  • the memory may be set independently of the processor or may be integrated with the processor, and the embodiments of the present application do not limit this.
  • the processor 1601, the memory 1602 and the transceiver 1603 communicate with each other through internal connection paths to transmit control and/or data signals.
  • the method disclosed in the above embodiment of the present invention can be applied to the processor 1601, or implemented by the processor 1601.
  • the processor 1601 may be an integrated circuit chip with signal processing capabilities.
  • each step of the above method can be completed by an integrated logic circuit of hardware in the processor 1601 or an instruction in the form of software.
  • the processor described in each embodiment of the present application may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.
  • the steps of the method disclosed in the embodiments of the present invention may be directly embodied as being executed by a hardware decoding processor, or may be executed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the art such as a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read-only memory or an electrically erasable programmable memory, a register, etc.
  • RAM random access memory
  • ROM read-only memory
  • programmable read-only memory or an electrically erasable programmable memory
  • register etc.
  • the storage medium is located in a memory, and the processor reads the instructions in the memory and completes the steps of the above method in combination with its hardware.
  • the memory 1602 may store instructions for executing the method shown in FIG. 4 in the above method.
  • the processor 1601 may execute the instructions stored in the memory 1602 in combination with other hardware to complete the various steps of the method shown in FIG. 4.
  • the specific working process and beneficial effects of the processor 1601 may refer to the description in the above method embodiment. If the communication device 1600 is not provided with the memory 1602, the processor 1601 may be coupled to a memory storing instructions for executing the method shown in FIG. 4.
  • the memory 1602 may store instructions for executing the method shown in FIG. 5 in the above method.
  • the processor 1601 may execute the instructions stored in the memory 1602 in combination with other hardware to complete the various steps of the method shown in FIG. 5.
  • the specific working process and beneficial effects of the processor 1601 may refer to the description in the above method embodiment. If the communication device 1600 is not provided with the memory 1602, the processor 1601 may be coupled to a memory storing instructions for executing the method shown in FIG. 5.
  • the memory 1602 may store instructions for executing the method shown in FIG. 12 in the above method.
  • the processor 1601 may execute the instructions stored in the memory 1602 in combination with other hardware to complete the various steps of the method shown in FIG. 12.
  • the specific working process and beneficial effects of the processor 1601 may refer to the description in the above method embodiment. If the communication device 1600 is not provided with the memory 1602, the processor 1601 may be coupled to a memory storing instructions for executing the method shown in FIG. 12.
  • the embodiment of the present application further provides a chip system, the chip system comprising a logic circuit, the logic circuit being used to couple with an input/output interface and transmit data through the input/output interface.
  • the chip system can execute the method shown in FIG4 .
  • An embodiment of the present application also provides a computer-readable storage medium having instructions stored thereon, and when the instructions are executed, the method shown in FIG. 4 is executed.
  • An embodiment of the present application also provides a computer program product comprising instructions, which, when executed, perform the method shown in FIG. 4 .
  • the embodiment of the present application further provides a chip system, the chip system comprising a logic circuit, the logic circuit being used to couple with an input/output interface and transmit data through the input/output interface.
  • the chip system can execute the method shown in FIG5 .
  • An embodiment of the present application also provides a computer-readable storage medium having instructions stored thereon, and when the instructions are executed, the method shown in FIG. 5 is executed.
  • An embodiment of the present application also provides a computer program product comprising instructions, which, when executed, performs the method shown in FIG. 5 .
  • the embodiment of the present application further provides a chip system, the chip system comprising a logic circuit, the logic circuit being used to couple with an input/output interface and transmit data through the input/output interface.
  • the chip system can execute the method shown in FIG12 .
  • An embodiment of the present application also provides a computer-readable storage medium having instructions stored thereon, which, when executed, execute the method shown in FIG. 12 .
  • An embodiment of the present application also provides a computer program product comprising instructions, which, when executed, performs the method shown in FIG. 12 , such as the method shown in FIG. 12 .
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. 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 module, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art.
  • the computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

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  • Signal Processing (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente demande concernent un procédé de détermination de ressources de transmission candidates, ainsi qu'un appareil associé. Le procédé comprend les étapes suivantes : un premier dispositif de communication détermine des premières ressources dans une fenêtre de sélection, les premières ressources comprenant M premières unités de domaine temporel qui sont continues dans le domaine temporel ; le premier dispositif de communication détermine les deuxièmes ressources d'un second dispositif de communication dans une fenêtre de détection, les deuxièmes ressources comprenant N secondes unités de domaine temporel, des troisièmes ressources chevauchant les premières ressources, et les troisièmes ressources étant des ressources réservées des deuxièmes ressources dans la fenêtre de sélection ; selon les premières ressources, les deuxièmes ressources et les troisièmes ressources, le premier dispositif de communication détermine, à partir de la fenêtre de sélection, des ressources pour effectuer une transmission continue. Les ressources candidates déterminées dans la solution technique peuvent être utilisées pour transmettre des données transmises sur des unités de domaine temporel continues. La transmission de données combinée d'unités de domaine temporel multiples permet d'augmenter une bande de transmission, de réduire un délai de transmission et d'obtenir une liaison latérale plus fiable.
PCT/CN2023/129115 2022-11-04 2023-11-01 Procédé de détermination de ressources de transmission candidates, et appareil associé WO2024094073A1 (fr)

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CN202211380633.0A CN117998655A (zh) 2022-11-04 2022-11-04 确定候选传输资源的方法和相关装置

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Citations (4)

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WO2021204133A1 (fr) * 2020-04-09 2021-10-14 北京紫光展锐通信技术有限公司 Procédé et dispositif de sélection de ressources pour liaison auxiliaire, support de stockage et terminal
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WO2020191769A1 (fr) * 2019-03-28 2020-10-01 Oppo广东移动通信有限公司 Procédé de transmission de canal de liaison latérale, et dispositif terminal
US20210314916A1 (en) * 2020-03-30 2021-10-07 Samsung Electronics Co., Ltd. Resource selection procedure to preserve chain integrity
WO2021204133A1 (fr) * 2020-04-09 2021-10-14 北京紫光展锐通信技术有限公司 Procédé et dispositif de sélection de ressources pour liaison auxiliaire, support de stockage et terminal
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