WO2023134689A1 - 一种载波的确定方法及相关装置 - Google Patents

一种载波的确定方法及相关装置 Download PDF

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Publication number
WO2023134689A1
WO2023134689A1 PCT/CN2023/071696 CN2023071696W WO2023134689A1 WO 2023134689 A1 WO2023134689 A1 WO 2023134689A1 CN 2023071696 W CN2023071696 W CN 2023071696W WO 2023134689 A1 WO2023134689 A1 WO 2023134689A1
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WIPO (PCT)
Prior art keywords
carrier
terminal
service
type
busy rate
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PCT/CN2023/071696
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English (en)
French (fr)
Inventor
刘星
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展讯通信（上海）有限公司
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Publication of WO2023134689A1 publication Critical patent/WO2023134689A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal

Definitions

  • the present invention relates to the communication field, in particular to a method for determining a carrier and a related device.
  • a wireless communication system user equipment (or terminal equipment) and network equipment can communicate with each other.
  • the communication link through which user equipment sends information to network equipment is called an uplink (uplink, UL).
  • a communication link through which a device sends information to a user equipment is called a downlink (DL).
  • uplink uplink
  • DL downlink
  • D2D device-to-device
  • the user equipment uses a channel busy ratio (CBR) as an indicator for selecting a carrier used for communication.
  • CBR channel busy ratio
  • the user equipment measures and obtains the CBR of multiple carriers, and uses the carrier whose CBR is lower than the CBR threshold as a candidate carrier. If there are multiple candidate carriers, the user equipment selects one or more candidate carriers for data transmission.
  • the services between user equipments have diversified characteristics, and different services have different requirements for carriers, which may cause the carrier selected by the channel busy rate to fail to meet the needs of the services to be executed, which in turn affects the execution of services, making users The experience is poor.
  • the present application provides a method for determining a carrier and a related device, which can make the carrier selected in sidelink communication meet service requirements.
  • the present application provides a method for determining a carrier, the method comprising: when the first service has data to be sent, the first terminal determines the first carrier; wherein, the data of the first service passes through the The side link SL between the first terminal and the second terminal is transmitted, and the first service is a service that enables hybrid automatic repeat request HARQ feedback; there is at least one resource pool configured with A physical sidelink feedback channel PSFCH: the first terminal sends the data to be sent of the first service to the second terminal through the first carrier.
  • the carrier selected in the sidelink communication can meet service requirements.
  • the determining the first carrier by the first terminal includes: determining, by the first terminal, the first carrier from a first carrier set, where the first carrier set includes at least A carrier to be selected, where there is at least one resource pool configured with PSFCH on the carrier to be selected.
  • the method further includes: the first terminal acquires configuration information, and the configuration The information is used to indicate channel configuration information of a resource pool on a carrier supported by the first terminal; the first terminal determines a carrier set to be selected according to the configuration information, and the set of carrier carriers to be selected includes one or more A carrier set, each of the one or more carrier sets includes at least one candidate carrier; the first terminal determines the first carrier set from the candidate carrier set.
  • the method further includes: the first terminal receiving capability information from the second terminal, where the capability information is used to indicate the carrier supported by the second terminal.
  • the set: the first terminal determining the candidate carrier set according to the configuration information includes: the first terminal determining the candidate carrier set according to the configuration information and the capability information.
  • the method further includes: the first terminal sending indication information to the second terminal, where the indication information is used to indicate the first carrier set.
  • the present application provides a method for determining a carrier, the method comprising: when there is data to be sent in the first service, the first terminal determines threshold information according to the type of the first service, wherein the first service The data is transmitted through the side link SL between the first terminal and the second terminal, the threshold information is used to indicate the channel busy rate threshold of the first type of carrier and the second type of carrier, and the first type There is at least one resource pool configured with a physical sidelink feedback channel PSFCH on the carrier, and no PSFCH is configured in the resource pools on the second type of carrier; the first terminal according to the determined threshold information and the measured carrier The channel busy rate determines the target carrier, and the target carrier is used to transmit the data to be sent of the first service.
  • different types of services can have different threshold information correspondingly, so that different candidate carriers can be selected through different threshold information, so as to match the requirements of different types of services.
  • the first terminal determines the threshold information according to the type of the first service, including: if the first service is a service that enables hybrid automatic repeat request HARQ feedback, Then determine that the threshold information indicates a first type of value; if the first service is a service that does not enable HARQ feedback, then determine that the threshold information indicates a second type of value; the first type of value is the same as the first type of value The value of the second category is different.
  • the first type of value includes a channel busy rate threshold of the first type of carrier and a channel busy rate threshold of the second type of carrier, where the The channel busy rate threshold of the first type of carrier is greater than the channel busy rate threshold of the second type of carrier.
  • the second type of value includes a channel busy rate threshold of the first type of carrier and a channel busy rate threshold of the second type of carrier, where the The channel busy rate threshold of the first type of carrier is less than or equal to the channel busy rate threshold of the second type of carrier.
  • the first terminal determines the target carrier according to the determined threshold information and the measured channel busy rate of the carrier, including: the first terminal determines the target carrier according to the determined The threshold information and the channel busy rate of the measured carrier determine a candidate set, and the candidate set includes one or more candidate carriers; wherein, if the candidate carrier is the first type of candidate carrier, the The channel busy rate of the carrier to be selected is less than the channel busy rate threshold of the carrier of the first type, and if the carrier to be selected is a carrier of the second type to be selected, the channel busy rate of the carrier to be selected is less than the channel busy rate of the carrier of the second type A channel busy rate threshold of a carrier; the first terminal determines the target carrier from the candidate set.
  • the present application provides a communication device, including a unit for implementing the method in the above first aspect and any possible implementation thereof, or for implementing the above second aspect and any possible implementation thereof The unit of the method in the implementation.
  • the present application provides a communication device, including a processor and a transceiver; the transceiver is used to receive or send signals; the processor is used to perform the above-mentioned first aspect and any one thereof A method in a possible implementation manner, or used to execute the method in the above second aspect and any possible implementation manner thereof.
  • the communication device further includes a memory: the memory is configured to store a computer program; the processor is specifically configured to call the computer program from the memory , so that the communication device executes the method in the above first aspect and any possible implementation manner thereof, or executes the method in the above second aspect and any possible implementation manner thereof.
  • the present application provides a chip, the chip is used to determine the first carrier when there is data to be sent in the first service; wherein, the data of the first service passes through the first terminal and the second terminal and the first service is a service that enables hybrid automatic repeat request HARQ feedback; there is at least one resource pool configured with a physical sidelink feedback channel on the first carrier PSFCH: the chip is further configured to send to-be-sent data of the first service to the second terminal through the first carrier.
  • the present application provides a chip configured to determine threshold information according to the type of the first service when there is data to be sent in the first service, wherein the data of the first service passes through the first
  • the side link SL between the terminal and the second terminal is used for transmission, the threshold information is used to indicate the channel busy rate threshold of the first type carrier and the second type carrier, and there is at least one resource pool on the first type carrier
  • the physical sidelink feedback channel PSFCH is configured, and the resource pool on the second type of carrier is not configured with PSFCH; the chip is also configured to determine according to the determined threshold information and the channel busy rate of the measured carrier A target carrier, where the target carrier is used to transmit data to be sent of the first service.
  • the present application provides a module device, the module device includes a communication module, a power module, a storage module, and a chip module, wherein: the power module is used to power the module The equipment provides electric energy; the storage module is used to store data and instructions; the communication module is used for internal communication of the module equipment, or for the communication between the module equipment and external equipment; the chip module is used for In: when the first service has data to be sent, determine the first carrier; wherein, the data of the first service is transmitted through the sidelink SL between the first terminal and the second terminal, and the first The service is a service that enables hybrid automatic repeat request HARQ feedback; there is at least one resource pool configured with a physical sidelink feedback channel PSFCH on the first carrier; The to-be-sent data of the first service.
  • the power module is used to power the module The equipment provides electric energy
  • the storage module is used to store data and instructions
  • the communication module is used for internal communication of the module equipment, or for the communication between the module equipment and external equipment
  • the chip module is
  • the present application provides a module device, the module device includes a communication module, a power module, a storage module, and a chip module, wherein: the power module is used to power the module The equipment provides electric energy; the storage module is used to store data and instructions; the communication module is used for internal communication of the module equipment, or for the communication between the module equipment and external equipment; the chip module is used for In: when there is data to be sent in the first service, determining the threshold information according to the type of the first service, wherein the data of the first service is transmitted through the side link SL between the first terminal and the second terminal, The threshold information is used to indicate the channel busy rate thresholds of the first type carrier and the second type carrier, where there is at least one resource pool configured with a physical sidelink feedback channel PSFCH on the first type carrier, and the second type None of the resource pools on the carrier is configured with PSFCH; and the target carrier is determined according to the determined threshold information and the measured channel busy rate of the carrier, and the target carrier is used to transmit the data to be
  • the present application provides a computer-readable storage medium, where computer-readable instructions are stored in the computer-readable medium, and when the computer-readable instructions are run on a communication device, the communication device executes the following: The method in the above first aspect and any possible implementation thereof, or perform the method in the above second aspect and any possible implementation thereof.
  • the present application provides a computer program or a computer program product, including codes or instructions.
  • the codes or instructions When the codes or instructions are run on a computer, the computer executes the computer program described in the above first aspect and any possible implementation thereof. method, or perform the method in the above second aspect and any possible implementation manner thereof.
  • the first device can send the data to be sent of the first service to the second terminal through the first carrier. Since there is at least one resource pool configured with PSFCH on the first carrier, then the data for the first service Acknowledgment information of data HARQ feedback can be transmitted through the PSFCH, and the first carrier can meet the requirements of the first service. In this way, the carrier selected in the sidelink communication can meet service requirements.
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • FIG. 2 is a flowchart of a method for determining a carrier provided in an embodiment of the present application
  • FIG. 3 is a flow chart of another method for determining a carrier provided in an embodiment of the present application.
  • FIG. 4 is a flow chart of another method for determining a carrier provided in an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • Fig. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the embodiment of the present application can be applied to the network architecture shown in FIG. 1.
  • the network architecture shown in FIG. 1 is the network architecture of a wireless communication system.
  • the network architecture usually includes user equipment and network equipment, and the number and form of each equipment do not constitute a The limitations of the application examples.
  • Fig. 1 schematically shows a network device and two user equipments (user equipment 1 and user equipment 2).
  • the user equipment and the network equipment can communicate with each other.
  • the communication link through which the user equipment sends information to the network equipment is called an uplink (uplink, UL), and the communication link through which the network equipment sends information to the user equipment is called an uplink.
  • Figure 1 exemplarily shows the uplink and downlink between the user equipment 1 and the network equipment.
  • the user equipment 1 accesses the network equipment through the Uu interface. It should be noted that there may or may not be a communication link between the user equipment 2 and the network device, which is not limited in this embodiment of the present application.
  • the user equipment and the user equipment can communicate with each other.
  • the communication link between the user equipment and the user equipment is called a sidelink (sidelink, SL), and the sidelink can also be called a direct link.
  • Edge link, and other names the embodiment of the present application does not limit the name of the link.
  • FIG. 1 exemplarily shows a sidelink link between user equipment 1 and user equipment 2 .
  • the user equipment 1 and the user equipment 2 are connected through the PC5 interface.
  • the manner in which user equipments communicate with each other through a sidelink may be referred to as sidelink communication (or simply as sidelink communication).
  • the user equipment sending data may be called sending user equipment (or called sending terminal equipment), and the user equipment receiving data may be called receiving user equipment (or called receiving terminal equipment).
  • wireless communication systems mentioned in the embodiments of the present application include but are not limited to: Internet of Things (IoT), third-generation mobile communication (3rd-generation, 3G) systems, long-term evolution (long-term evolution) systems term evolution, LTE), fifth-generation mobile communication (5th-generation, 5G) system, sixth-generation mobile communication (6th-generation, 6G) system and future mobile communication system.
  • IoT Internet of Things
  • 3rd-generation, 3G third-generation mobile communication
  • long-term evolution long-term evolution
  • LTE long-term evolution
  • 5th-generation, 5G fifth-generation mobile communication
  • 6G sixth-generation mobile communication
  • future mobile communication system future mobile communication system.
  • the technical solutions of the embodiments of the present application can also be applied to wireless local area network (Wireless Local Area Network, WLAN) network, can also be applied to vehicle networking (Vehicle-to-X, V2X) network, can also be applied to Non-terrestrial networks (NTN), enhanced Internet of Things (LTE enhanced MTO, eMTC), can also be applied to other networks, etc.
  • WLAN Wireless Local Area Network
  • V2X vehicle networking
  • NTN Non-terrestrial networks
  • LTE enhanced MTO enhanced MTO
  • eMTC enhanced Internet of Things
  • the technical solution of this application is also applicable to other different network architectures, including but not limited to relay network architecture, dual link architecture, vehicle-to-everything (V2X) communication architecture, device-to-device (Device-to- Device, D2D) communication architecture, Adhoc network peer-to-peer (Peer to Peer, P2P) communication architecture, machine-to-machine (Machine to Machine, M2M) communication architecture in the Internet of Things, and other architectures.
  • V2X vehicle-to-everything
  • D2D Device-to-device
  • D2D Device-to- Device
  • P2P Adhoc network peer-to-peer
  • M2M Machine-to-machine to Machine
  • M2M Machine to Machine
  • the user equipment in the embodiment of the present application is a device with a wireless communication function, and may be called a terminal (terminal), terminal equipment, mobile station (mobile station, MS), mobile terminal (mobile terminal, MT) ), access terminal equipment, vehicle terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • a terminal terminal
  • terminal equipment terminal equipment
  • mobile station mobile station
  • MT mobile terminal
  • access terminal equipment vehicle terminal equipment
  • industrial control terminal equipment UE unit
  • UE station mobile station
  • remote station remote terminal equipment
  • mobile equipment UE terminal equipment
  • wireless communication equipment UE agent or UE device
  • User equipment may be fixed or mobile. It should be noted that the user equipment may support at least one wireless communication technology, such as LTE, new radio (new radio, NR) and so on.
  • the user equipment may be a mobile phone (mobile phone), a tablet computer (pad), a desktop computer, a notebook computer, an all-in-one computer, a vehicle terminal, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, transportation safety Wireless terminals in (transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless Local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, wearable devices, future mobile communications
  • the user equipment may also be a device capable of transmitting and receiving, such as a chip system.
  • the chip system may include a chip, and may also include other discrete devices, which is not limited in this embodiment of the present application.
  • the network device is a device that provides a wireless communication function for the user equipment, and may also be called a radio access network (radio access network, RAN) device, or an access network element.
  • the network device may support at least one wireless communication technology, such as LTE, NR and so on.
  • the network equipment includes but is not limited to: an access point (Access Point, AP) in a wireless local area network (Wireless Local Area Networks, WLAN), a next-generation mobile communication system (5th-generation, 5G) in the fifth generation Base station (generation nodeB, gNB), evolved node B (evolved node B, eNB), radio network controller (radio network controller, RNC), node B (node B, NB), base station controller (base station controller, BSC) ), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (baseband unit, BBU), transceiver point (transmitting and receiving point, TRP) , transmitting point (transmitting point, TP), mobile switching center, etc.
  • an access point Access Point, AP
  • WLAN Wireless Local Area Networks
  • 5th-generation, 5G in the fifth generation Base station
  • generation nodeB, gNB evolved
  • the network device can also be a wireless controller, a centralized unit (centralized unit, CU), and/or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can be Relay stations, access points, vehicle-mounted devices, terminal devices, wearable devices, and network devices in future mobile communications or network devices in future evolved PLMNs, etc.
  • the network device may also be an apparatus having a wireless communication function for the user equipment, such as a chip system.
  • the system-on-a-chip may include a chip, and may also include other discrete devices.
  • the network device can also communicate with an Internet Protocol (Internet Protocol, IP) network, such as the Internet (internet), a private IP network, or other data networks.
  • IP Internet Protocol
  • the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.
  • D2D Device-to-Device
  • D2D Device-to-Device
  • a communication link between user equipments is called a sidelink (sidelink, SL).
  • the side link may also be called a direct link, an edge link, and other names, and the name of the link is not limited in this embodiment of the present application.
  • On the sidelink data transmission is performed between user equipments through carriers.
  • CA Carrier aggregation
  • a CA mechanism is introduced on the side link.
  • the principle of the CA mechanism is to aggregate multiple continuous or discontinuous component carriers (or called carrier units) together to transmit data to obtain larger transmission bandwidth, thereby obtaining higher peak rate and throughput.
  • two or more component carriers (CC) are aggregated together to support larger transmission bandwidth.
  • the bandwidth of each carrier unit can be 5MHz, 10MHz, 15MHz and 20MHz, and so on.
  • a carrier formed by aggregating two or more carrier components is called a carrier set, or a carrier combination.
  • carrier aggregation supports aggregation between different carrier components.
  • the following carrier components may be included: a) carrier components with the same or different bandwidths. b) In the same frequency band, adjacent or non-adjacent carrier components. c) Carrier components in different frequency bands.
  • the sidelink supports broadcasting, and the user equipment uses a channel busy ratio (channel busy ratio, CBR) as an index for selecting a carrier used for communication.
  • CBR channel busy ratio
  • the user equipment measures and obtains the CBR of multiple carriers, and uses the carrier whose CBR is lower than the CBR threshold as a candidate carrier. If there are multiple candidate carriers, the user equipment selects one or more candidate carriers for data transmission.
  • the sidelink supports unicast, and the user equipment can select a carrier set according to the capabilities of the sending user equipment and the receiving user equipment.
  • the sending user equipment may obtain the sidelink carrier set supported by the receiving user equipment through capability exchange information in advance, and then select the carrier set used for communication from the carrier sets supported by both parties.
  • FIG. 2 it is a flowchart of a method for determining a carrier provided in an embodiment of the present application.
  • This method can be applied to the network architecture shown in FIG. 1 .
  • the first terminal in the following content may be user equipment 1 in FIG. 1, and the second terminal may be user equipment 2 in FIG. 1; or, the first terminal in the following content may be The second terminal may be the user equipment 1 in FIG. 1 .
  • the method includes the following steps:
  • the first terminal determines a first carrier.
  • the data of the first service is transmitted through the side link between the first terminal and the second terminal, and the first service is a service that enables hybrid automatic repeat request (HARQ) feedback .
  • the first service is a service that enables HARQ feedback, which can be understood as: the receiving end (that is, the second terminal) that receives the data of the first service needs to send data to the sending end (that is, the second terminal) of the data of the first service.
  • a terminal feeds back data acknowledgment information, where the acknowledgment information is used to indicate whether the received data of the first service is correct or not.
  • the acknowledgment information may include an acknowledgment character (acknowledge character, ACK) and a negative acknowledgment character (negative acknowledgment character, NACK), wherein, ACK indicates that the receiving end has received correct data, and NACK indicates that the receiving end has received wrong data, The sender needs to retransmit the data.
  • ACK acknowledgment character
  • NACK negative acknowledgment character
  • the first terminal sends the data of the first service to the second terminal in units of blocks.
  • the first terminal uses the data in the block to calculate a cyclic redundancy check (cyclic redundancy check, CRC), and sends it to the receiving end together with the block.
  • CRC cyclic redundancy check
  • the receiving end calculates a CRC based on the received data and compares it with the received CRC. If the two are equal, the receiving end considers that the correct data has been successfully received and replies an "ACK" to the sending end; if two If the two are not equal, the receiving end thinks that it has received wrong data, and replies a "NACK" to the sending end to request the sending end to retransmit the block.
  • the sending end If the sending end does not receive a reply from the receiving end within a certain period, the sending end assumes that the previously sent block has not arrived at the receiving end, and the sending end automatically retransmits the block.
  • the first service may be referred to as a service enabling HARQ feedback.
  • one or more resource pools can be configured on one carrier, for example, a maximum of eight resource pools can be configured on one carrier.
  • One or more channels can be configured on one resource pool.
  • the channel can include one or more of the following: physical sidelink feedback channel (physical sidelink feedback channel, PSFCH), physical sidelink broadcast channel (physical sidelink broadcast channel (PSBCH), physical sidelink discovery channel (physical sidelink discovery channel, PSDCH), physical sidelink control channel (physical sidelink control channel (PSCCH), physical sidelink shared channel (physical sidelink shared channel, PSSCH), and so on.
  • the PSFCH can be used to transmit acknowledgment information (for example, ACK and NACK) in HARQ feedback.
  • acknowledgment information for example, ACK and NACK
  • the PSFCH is used as an example channel for transmitting the acknowledgment information in the HARQ feedback.
  • the channel for transmitting the acknowledgment information in the HARQ feedback may have different names, which are not limited in the embodiments of the present application. Since there is at least one resource pool configured with a PSFCH on the first carrier, the confirmation information for the HARQ feedback of the data of the first service can be transmitted through the PSFCH, and the first carrier can meet the requirements of the first service. In this way, the carrier selected in the sidelink communication can meet the service requirements.
  • the first terminal may obtain configuration information, and the first terminal may determine the first carrier through the configuration information.
  • the configuration information is used to indicate the channel configuration information of the resource pool on the carrier supported by the first terminal.
  • the first terminal can know which carriers have resource pools configured with PSFCHs through the configuration information.
  • the first carrier may be one or more carriers among carriers configured with PSFCH in at least one resource pool.
  • the carriers supported by the first terminal are: carrier 1, carrier 2, carrier 3, carrier 4, and carrier 5.
  • the following information can be obtained from the configuration information: resource pool 1-1, resource pool 1-2, and resource pool 1-3 are configured on carrier 1, resource pool 1-1 is configured with PSFCH, and resource pool is configured on carrier 3 3-1.
  • the first carrier may be carrier 1 and/or carrier 3.
  • the first terminal may also measure the obtained channel busy rate of the carrier supported by itself, and determine the first carrier according to the channel busy rate and configuration information.
  • the first terminal may use a carrier whose CBR is lower than the CBR threshold and has at least one resource pool configured with PSFCH as a candidate carrier.
  • the first carrier may be one or more carriers in the candidate carriers.
  • the carriers supported by the first terminal are: carrier 1, carrier 2, carrier 3, carrier 4, and carrier 5, and the corresponding channel busy rates are: 20%, 40%, 60%, 30%, 10%, and the CBR threshold is 35%.
  • the following information can be obtained from the configuration information: resource pool 1-1, resource pool 1-2, and resource pool 1-3 are configured on carrier 1, resource pool 1-1 is configured with PSFCH, and resource pool is configured on carrier 3 3-1.
  • the first carrier may be Carrier 1 .
  • the first terminal sends to-be-sent data of the first service to the second terminal through the first carrier.
  • the confirmation information of the HARQ feedback for the data of the first service can be transmitted through the PSFCH, and the first carrier can meet the requirements of the first service.
  • the first terminal may select any one or more carriers supported by itself to transmit the data to be sent in the second service.
  • the data of the second service is transmitted through the sidelink between the first terminal and the second terminal, and the second service is a service for which HARQ feedback is not enabled.
  • the second service is a service that does not enable HARQ feedback can be understood as: the receiving end (that is, the second terminal) that receives the data of the second service does not need to send the data to the sending end of the second service ( That is, the first terminal) feeds back data acknowledgment information, where the acknowledgment information is used to indicate whether the received data of the second service is correct or not.
  • the first terminal may also select one or more carriers to transmit the data to be sent of the second service according to the CBR of the carriers supported by itself.
  • the first terminal measures the CBR of the carriers supported by itself, takes the carriers whose CBR is lower than the CBR threshold as candidate carriers, and selects one or more carriers from the candidate carriers to transmit the data to be sent of the second service.
  • the first terminal may select any one or more carriers supported by itself except the carrier configured with PSFCH in at least one resource pool to transmit the data to be sent of the second service.
  • at least one carrier resource configured with PSFCH in a resource pool can be reserved for the HARQ feedback-enabled service, which can meet the subsequent requirements of the HARQ feedback-enabled service.
  • the CBR of the carrier may also be combined to select the carrier supported by the first terminal itself except for the carrier configured with PSFCH in at least one resource pool, which will not be repeated here.
  • the first device can send the data to be sent of the first service to the second terminal through the first carrier. Since there is at least one resource pool configured with PSFCH on the first carrier, then the data for the first service Acknowledgment information of data HARQ feedback can be transmitted through the PSFCH, and the first carrier can meet the requirements of the first service. In this way, the carrier selected in the sidelink communication can meet service requirements.
  • FIG. 3 it is a flowchart of another carrier determination method provided by the embodiment of the present application.
  • This method can be applied to the network architecture shown in FIG. 1 .
  • the first terminal in the following content may be user equipment 1 in FIG. 1, and the second terminal may be user equipment 2 in FIG. 1; or, the first terminal in the following content may be The second terminal may be the user equipment 1 in FIG. 1 .
  • the method includes the following steps:
  • the first terminal acquires configuration information, where the configuration information is used to indicate channel configuration information of a resource pool on a carrier supported by the first terminal.
  • the first terminal may store the configuration information, and the first terminal may read the configuration information from a storage medium of its own device.
  • the first terminal may obtain the configuration information from other devices (for example, network devices), and the other devices allocate carrier resources for the first terminal or store the configuration information of the first terminal.
  • the configuration information may include identifiers of carriers supported by the first terminal, identifiers of resource pools on the carriers supported by the first terminal, information about channels configured on each resource pool, and so on.
  • the first terminal records the configuration information in the form of a data table, see Table 1, which shows a possible configuration information. It should be noted that, Table 1 only exemplarily shows configuration information of some carriers, and the first terminal may support more carriers. In addition, it should be noted that Table 1 is only an example, and there may be other forms for the first terminal to record the configuration information, which is not limited in this embodiment of the present application.
  • resource pool 1-1, resource pool 1-2, and resource pool 1-3 are configured on carrier 1, and resource pool 1-1 is configured with PSFCH, PSBCH, PSDCH, PSCCH, and PSSCH.
  • resource pool 1-2 is configured with PSBCH, PSDCH, and PSSCH, and resource pool 1-3 is configured with PSDCH, PSCCH, and PSSCH.
  • the first terminal determines a carrier set to be selected according to the configuration information.
  • the candidate carrier set includes one or more carrier sets, each carrier set in the one or more carrier sets includes at least one candidate carrier, and there is at least one resource pool configured with PSFCH on the candidate carrier.
  • PSFCH For the introduction of the PSFCH, refer to the introduction in the above content, and will not be repeated here.
  • the manner in which the first terminal determines the carrier set to be selected according to the configuration information may be as follows: the first terminal obtains its own capability information, and the first terminal determines the carrier set to be selected according to its own capability information and the configuration information. Select carrier set.
  • the capability information of the first terminal is used to indicate the set of carriers supported by the first terminal.
  • the carrier set supported by the first terminal may be understood as: the first terminal may support simultaneous reception and/or transmission of data on carriers included in any carrier set in these carrier sets.
  • the capability information may include a carrier identifier corresponding to a set of carriers supported by the first terminal.
  • the capability information includes [1,4], [1,5], [3,4,5], which can be expressed as: the first terminal can support carrier 1 and carrier 4, or carrier 1 and carrier 5 , or simultaneously receive and/or transmit data on Carrier 3, Carrier 4, and Carrier 5.
  • the first terminal needs to obtain its own capability information.
  • the first terminal may store the capability information, and the first terminal may read the capability information from a storage medium of its own device.
  • the first terminal may obtain the capability information from other devices (for example, network devices), and the other devices allocate carrier resources for the first terminal or store the capability information of the first terminal.
  • the carrier sets supported by the first terminal are [1,2], [3,4], [2,4], [1,5], and the following information can be obtained from the configuration information of the first terminal :
  • Carrier 1 is configured with resource pool 1-1, resource pool 1-2, and resource pool 1-3, wherein resource pool 1-1 is configured with PSFCH, and carrier 3 is configured with resource pool 3-1 and resource pool 3-2 , wherein resource pool 3-1 is configured with PSFCH, and the resource pools on carrier 2, carrier 4, and carrier 5 are not configured with PSFCH. It can be seen that since only carrier 1 and carrier 3 have resource pools configured with PSFCH, the candidate carrier sets are [1,2], [3,4] and [1,5].
  • the method further includes: the first terminal receives capability information from the second terminal, where the capability information is used to indicate the set of carriers supported by the second terminal.
  • the carrier set supported by the second terminal includes one or more carrier sets.
  • the carrier set supported by the second terminal may be understood as: the second terminal may support simultaneous reception and/or transmission of data on carriers included in any carrier set in these carrier sets.
  • the manner in which the second terminal acquires its own capability information may refer to the manner in which the first terminal acquires its own capability information introduced in the above content, and details are not repeated here.
  • the capability information may include a carrier identifier corresponding to a set of carriers supported by the second terminal.
  • the capability information includes [1,2,4], [1,3,5], [2,3,4,5], which can be expressed as: the second terminal can support , or on Carrier 1, Carrier 3 and Carrier 5, or on Carrier 2, Carrier 3, Carrier 4 and Carrier 5 to simultaneously receive and/or transmit data.
  • the manner in which the first terminal determines the carrier set to be selected according to the configuration information may also be: the first terminal determines the carrier set to be selected according to the configuration information and the capability information of the second terminal.
  • the manner in which the first terminal determines the carrier set to be selected according to the configuration information and the capability information of the second terminal may be: the first terminal determines the common supported carrier set according to the capability information of the first terminal itself and the capability information of the second terminal carrier set.
  • the first terminal determines the candidate carrier set from the commonly supported carrier set according to the configuration information.
  • the commonly supported carrier set can be understood as: the first terminal can support simultaneous transmission of data on the carriers included in any carrier set in these carrier sets, and the second terminal can support any carrier set in these carrier sets Concurrent reception of data on the included carriers, or, the first terminal may support simultaneous data reception on the carriers contained in any of these carrier sets, and the second terminal may support simultaneous reception of data on any of these carrier sets Data is sent simultaneously on the carriers contained in the set. That is to say, the commonly supported carrier set is the intersection of the carrier set supported by the first terminal and the carrier set supported by the second terminal.
  • the carrier set supported by the first terminal is [1,2], [3,4], [2,4], [1,5], and the carrier set supported by the second terminal is [1,2] , [3,4], [2,4].
  • the following information can be obtained from the configuration information: resource pool 1-1, resource pool 1-2, and resource pool 1-3 are configured on carrier 1, resource pool 1-1 is configured with PSFCH, and resource pool is configured on carrier 3 3-1.
  • Resource pool 3-2 wherein resource pool 3-1 is configured with PSFCH, and the resource pools on carrier 2, carrier 4, and carrier 5 are not configured with PSFCH. It can be seen that the commonly supported carrier sets are [1,2], [3,4], [2,4], and since only carrier 1 and carrier 3 have resource pools configured with PSFCH, then the candidate The carrier sets are [1,2] and [3,4].
  • the first terminal determines the first carrier set from the candidate carrier set.
  • the first terminal determines a carrier set from the candidate carrier set as the first carrier set.
  • the first terminal may determine any carrier set from the candidate carrier set as the first carrier set.
  • the first terminal may measure the CBR of the carriers included in the candidate carrier set, calculate the average CBR of each candidate carrier set according to the CBR of each carrier, and select the candidate carrier with the smallest average CBR set as the first carrier set.
  • the carrier sets to be selected are [1,2] and [3,4], and the channel busy rates corresponding to carrier 1, carrier 2, carrier 3, and carrier 4 respectively measured by the first terminal are: 20%, 40%, 60%, 10%.
  • the calculated average CBR of the carrier set [1,2] is 30%, and the average CBR of the carrier set [3,4] is 35%, then the determined first carrier set is the carrier set [1,2]. In this way, the CBR situation of each carrier in the carrier set can be considered comprehensively.
  • the first terminal may measure the CBR of the carriers included in the candidate carrier set, and select the candidate carrier set including the carrier with the smallest CBR as the first carrier set.
  • the carrier sets to be selected are [1,2] and [3,4], and the channel busy rates corresponding to carrier 1, carrier 2, carrier 3, and carrier 4 respectively measured by the first terminal are: 20%, 40%, 60%, 10%.
  • the carrier with the smallest CBR is carrier 4, then the determined first carrier set is the carrier set [3, 4]. Since the overall performance of the carrier set formed by multiple carriers is likely to be determined by the carrier with the best transmission performance (equivalent to the smallest CBR), this method can take into account the overall performance of the carrier set.
  • the first terminal may also be other manners for the first terminal to determine the first carrier set from the candidate carrier set, which will not be repeated here.
  • the first terminal sends indication information to the second terminal, where the indication information is used to indicate the first carrier set.
  • the second terminal receives the indication information from the first terminal, and subsequently the first terminal and the second terminal can communicate on the first carrier set.
  • the first terminal may determine the first carrier set in the foregoing manner.
  • the data of the first service is transmitted through the sidelink between the first terminal and the second terminal, and the first service is a service enabling HARQ feedback.
  • the first set of carriers used for communication between the first terminal and the second terminal includes at least one carrier configured with a PSFCH in a resource pool, and the first set of carriers can meet the requirements of the first service.
  • the first terminal may determine the first carrier set in the foregoing manner. After the first terminal determines that the first service exists between the first terminal and the second terminal, the first terminal sends first indication information to the second terminal, where the first indication information is used to indicate the first carrier set, so that the first A terminal communicates with a second terminal on a first set of carriers. After the first terminal determines that there is no first service between the first terminal and the second terminal, the first terminal sends second indication information to the second terminal, where the second indication information is used to indicate the second carrier set, so that The first terminal and the second terminal communicate on a second set of carriers. Wherein, the first carrier set and the second carrier set may be the same or different.
  • the second carrier set is not required to include at least one carrier to be selected, and there is at least one resource pool configured with PSFCH on the carrier to be selected. There may be other selection modes (or called rules, requirements) for the second carrier set.
  • the first set of carriers used by the first terminal and the second terminal for communication includes at least one carrier configured with PSFCH in the resource pool, and the first set of carriers can meet the needs of the first service. demand.
  • the first terminal and the second terminal can use the second carrier set to communicate, and the selection of the second carrier set relaxes the requirements for the channel configuration of the carriers in the carrier set, so that the second There are more options for the carrier set, and the overall transmission performance may be better. In this way, service requirements in different scenarios can be considered, and suitable carrier sets in different scenarios can be selected.
  • the method may further include:
  • the first terminal determines the first carrier from the first carrier set.
  • the first terminal sends the data to be sent of the first service to the second terminal through the first carrier.
  • step S205 and step S206 can also refer to the content introduced in the above-mentioned FIG. 2 , which will not be repeated here.
  • FIG. 4 it is a flowchart of another method for determining a carrier provided by an embodiment of the present application.
  • This method can be applied to the network architecture shown in FIG. 1 .
  • the first terminal in the following content may be user equipment 1 in FIG. 1, and the second terminal may be user equipment 2 in FIG. 1; or, the first terminal in the following content may be The second terminal may be the user equipment 1 in FIG. 1 .
  • the method includes the following steps:
  • the first terminal determines threshold information according to the type of the first service.
  • the data of the first service is transmitted through the sidelink between the first terminal and the second terminal.
  • the threshold information is used to indicate the channel busy rate thresholds of the first type carrier and the second type carrier, where there is at least one resource pool configured with PSFCH on the first type carrier, and none of the resource pools on the second type carrier Configure PSFCH.
  • PSFCH For the introduction of the PSFCH, reference may be made to the introduction in the foregoing content, and details will not be repeated here.
  • different types of services may correspond to different threshold information, so that different candidate carriers may be selected through different threshold information, so as to match requirements of different types of services.
  • the manner in which the first terminal determines the threshold information according to the type of the first service may be: if the first service is a service that enables HARQ feedback, then determine that the threshold information indicates a value of the first type; if the If the first service is a service for which HARQ feedback is not enabled, it is determined that the threshold information indicates a value of the second type; the value of the first type is different from the value of the second type.
  • the first type of value includes a channel busy rate threshold of the first type of carrier and a channel busy rate threshold of the second type of carrier, wherein the channel busy rate threshold of the first type of carrier is greater than the channel busy rate threshold of the second type of carrier
  • the channel busy rate threshold of the carrier Since the channel busy rate threshold of the first type of carrier is greater than the channel busy rate threshold of the second type of carrier, in the process of selecting the carrier to be selected according to the channel busy rate threshold and the channel busy rate of the carrier, the first type of carrier is selected The possibility will be greater, which is beneficial to screen out carriers with at least one resource pool configured with PSFCH to match the requirements of the first service.
  • the second type of value includes a channel busy rate threshold of the first type of carrier and a channel busy rate threshold of the second type of carrier, wherein the channel busy rate threshold of the first type of carrier is less than or equal to the channel busy rate threshold of the second type of carrier The channel busy rate threshold of the second type of carrier.
  • the channel busy rate threshold of the first type of carrier is equal to the channel busy rate threshold of the second type of carrier, then in the process of selecting the candidate carrier according to the channel busy rate threshold and the channel busy rate of the carrier, the second The probability of being selected for the first type of carrier and the second type of carrier is equal.
  • the channel busy rate threshold of the first type of carrier is less than the channel busy rate threshold of the second type of carrier, then in the process of selecting the carrier to be selected according to the channel busy rate threshold and the channel busy rate of the carrier,
  • the second type of carrier is more likely to be selected, which is beneficial to filter out the carriers that are not configured with PSFCH in the resource pool, and the resources of the first type of carrier can be reserved for services that enable HARQ feedback, which can meet the needs of subsequent users.
  • the first terminal determines a target carrier according to the determined threshold information and the measured channel busy rate of the carrier, where the target carrier is used to transmit data to be sent of the first service.
  • the first terminal determines the target carrier according to the determined threshold information and the measured channel busy rate of the carrier as follows: the first terminal determines the target carrier according to the determined threshold information and the measured channel busy rate of the carrier
  • the candidate set is determined according to the rate, and the candidate set includes one or more candidate carriers; the first terminal determines the target carrier from the candidate set.
  • the channel busy rate of the carrier to be selected is less than (or: less than or equal to) the channel busy rate threshold of the carrier of the first type; if the carrier to be selected is For a carrier of the second type to be selected, the channel busy rate of the carrier to be selected is less than (or: less than or equal to) the channel busy rate threshold of the carrier of the second type.
  • the first terminal may select one or more candidate carriers from the candidate set as the target carrier.
  • the carriers supported by the first terminal are: carrier 1, carrier 2, carrier 3, carrier 4, and carrier 5, and the corresponding channel busy rates are: 20%, 35%, 30%, 25%, 40%.
  • the following information can be obtained from the configuration information: resource pool 1-1, resource pool 1-2, and resource pool 1-3 are configured on carrier 1, resource pool 1-1 is configured with PSFCH, and resource pool is configured on carrier 3 3-1.
  • Resource pool 3-2, wherein resource pool 3-1 is configured with PSFCH, and the resource pools on carrier 2, carrier 4, and carrier 5 are not configured with PSFCH.
  • carrier 1 and carrier 3 are carriers of the first type
  • carriers 2, 4 and 5 are carriers of the second type.
  • the threshold information indicates a value of the first type.
  • the channel busy rate threshold of the first type of carrier is 40%
  • the channel busy rate threshold of the second type of carrier is 20%.
  • the candidate carriers included in the candidate set are carrier 1 and carrier 3 . It can be seen that it is more likely that the first type of carrier is included in the candidate set, and the number of the first type of carrier in the candidate set is larger.
  • the threshold information indicates a value of the second type.
  • the channel busy rate threshold of the first type of carrier is 25%
  • the channel busy rate threshold of the second type of carrier is 40%.
  • the candidate carriers included in the candidate set are carrier 1, carrier 2 and carrier 4. It can be seen that it is more likely that the second type of carrier is included in the candidate set, and the number of the second type of carrier in the candidate set is larger.
  • different types of services can have different threshold information correspondingly, so that different candidate carriers can be selected through different threshold information, so as to match the requirements of different types of services.
  • the user equipment includes hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software with reference to the units and method steps of the examples described in the embodiments disclosed in the present application. Whether a certain function is executed by hardware or computer software drives the hardware depends on the specific application scenario and design constraints of the technical solution.
  • FIG. 5 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device may be a user equipment, or a device in the user equipment, or a device that can be matched and used with the user equipment.
  • the communication device 50 shown in FIG. 5 may include a determining unit 501 and a sending unit 502 . in:
  • the determining unit 501 is configured to determine the first carrier when there is data to be sent in the first service.
  • the data of the first service is transmitted through the side link SL between the communication device and the second terminal, and the first service is a service that enables hybrid automatic repeat request HARQ feedback; the first There is at least one resource pool configured with a physical sidelink feedback channel PSFCH on the carrier.
  • a sending unit 502 configured to send to-be-sent data of the first service to the second terminal via the first carrier.
  • the determining unit 501 is specifically configured to: determine a first carrier from a first set of carriers, the first set of carriers includes at least one candidate carrier, and there is at least one resource on the candidate carrier
  • the pool is configured with PSFCH.
  • the communication device further includes an obtaining unit, the obtaining unit is configured to: obtain configuration information, the configuration information is used to indicate a channel of a resource pool on a carrier supported by the communication device Configuration information; the determining unit 501 is further configured to: determine a carrier set to be selected according to the configuration information, the carrier set to be selected includes one or more carrier sets, and each carrier set in the one or more carrier sets At least one candidate carrier is included; and the first carrier set is determined from the candidate carrier set.
  • the communication device further includes a receiving unit configured to receive capability information from the second terminal, where the capability information is used to indicate the set of carriers supported by the second terminal ;
  • the determining unit 501 is specifically configured to: determine the candidate carrier set according to the configuration information and the capability information.
  • the sending unit 502 is further configured to: send indication information to the second terminal, where the indication information is used to indicate the first carrier set.
  • the communication device shown in FIG. 5 can send the data to be sent of the first service to the second terminal through the first carrier. Since there is at least one resource pool configured with PSFCH on the first carrier, the HARQ for the data of the first service Feedback acknowledgment information can be transmitted through the PSFCH, and the first carrier can meet the requirements of the first service. Through this communication device, the carrier selected in the sidelink communication can meet service requirements.
  • FIG. 6 shows a schematic structural diagram of another communication device according to an embodiment of the present application.
  • the communication device may be a user equipment, or a device in the user equipment, or a device that can be matched and used with the user equipment.
  • the communication device 60 shown in FIG. 6 may include a first determining unit 601 and a second determining unit 602 . in:
  • the first determining unit 601 is configured to determine threshold information according to the type of the first service when there is data to be sent in the first service, wherein the data of the first service passes through the side between the communication device and the second terminal
  • the threshold information is used to indicate the channel busy rate thresholds of the first type carrier and the second type carrier, and there is at least one resource pool configured with a physical sidelink feedback channel on the first type carrier PSFCH, resource pools on the second type of carrier are not configured with PSFCH.
  • the second determining unit 602 is configured to determine a target carrier according to the determined threshold information and the measured channel busy rate of the carrier, where the target carrier is used to transmit data to be sent of the first service.
  • the second determining unit 602 For operations performed by the second determining unit 602, reference may be made to the description of step S302 in the embodiment corresponding to FIG. 4 above.
  • the first determining unit 601 is specifically configured to: if the first service is a service that enables hybrid automatic repeat request (HARQ) feedback, determine that the threshold information indicates a first-type value; If the first service is a service for which HARQ feedback is not enabled, it is determined that the threshold information indicates a value of the second type; the value of the first type is different from the value of the second type.
  • HARQ hybrid automatic repeat request
  • the first type of value includes a channel busy rate threshold of the first type of carrier and a channel busy rate threshold of the second type of carrier, where the first type of carrier The channel busy rate threshold is greater than the channel busy rate threshold of the second type of carrier.
  • the second type of value includes a channel busy rate threshold of the first type of carrier and a channel busy rate threshold of the second type of carrier, where the first type of carrier The channel busy rate threshold is less than or equal to the channel busy rate threshold of the second type of carrier.
  • the second determining unit 602 is specifically configured to: determine a candidate set according to the determined threshold information and the measured carrier channel busy rate, and the candidate set includes one or more candidate Selecting a carrier; wherein, if the carrier to be selected is the first type of carrier to be selected, the channel busy rate of the carrier to be selected is less than the channel busy rate threshold of the carrier of the first type, and if the carrier to be selected is the first type of carrier to be selected.
  • the second type of candidate carrier the channel busy rate of the candidate carrier is less than the channel busy rate threshold of the second type of carrier; determine the target carrier from the candidate set.
  • different types of services may correspond to different threshold information, so that different candidate carriers may be selected through different threshold information, so as to match requirements of different types of services.
  • the aforementioned communication device may be, for example, a chip or a chip module.
  • each module or each unit included in the product may be a software module or a hardware module, or may be partly a software module and partly a hardware module.
  • each module contained therein may be realized by hardware such as a circuit, or at least some modules may be realized by a software program, and the software program runs inside the chip.
  • the remaining (if any) modules can be realized by means of hardware such as circuits; for each device or product applied to or integrated in a chip module, each module contained in it can be realized by means of hardware such as circuits , different modules can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules can be implemented in the form of software programs that run on the integrated processing of the chip module device, the remaining (if any) modules can be realized by means of hardware such as circuits; for each device or product applied to or integrated in user equipment, each module contained in it can be realized by means of hardware such as circuits, and different modules It may be located in the same component (for example, a chip, a circuit module, etc.) or different components in the user equipment, or at least some modules may be implemented in the form of a software program, the software program runs on a processor integrated in the user equipment, and the remaining ( If there is), some modules can be realized by hardware such as circuits.
  • the apparatus may be user equipment or an apparatus for user equipment.
  • the apparatus for the user equipment may be a chip system or a chip in the user equipment.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the communication device 70 includes at least one processor 720, configured to implement the data processing function of the user equipment in the method provided by the embodiment of the present application.
  • the communication device 70 may further include a communication interface 710, configured to implement the sending and receiving operations of the user equipment in the method provided by the embodiment of the present application.
  • the communication interface may be a transceiver, a circuit, a bus, a module or other types of communication interfaces for communicating with other devices through a transmission medium.
  • the communication interface 710 is used for devices in the communication device 70 to communicate with other devices.
  • the processor 720 uses the communication interface 710 to send and receive data, and is used to implement the methods described in FIGS. 2-4 in the above method embodiments.
  • the communication device 70 may also include at least one memory 730 for storing program instructions and/or data.
  • the memory 730 is coupled to the processor 720 .
  • the coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • Processor 720 may cooperate with memory 730 .
  • Processor 720 may execute program instructions stored in memory 730 . At least one of the at least one memory may be included in the processor.
  • the processor 720 can read the software program in the memory 730, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor 720 performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit (not shown in the figure), and the radio frequency circuit performs radio frequency processing on the baseband signal, and passes the radio frequency signal through the antenna in the form of electromagnetic waves Send out.
  • the radio frequency circuit When data is sent to the communication device 70, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 720, and the processor 720 converts the baseband signal into data and converts the data to process.
  • the radio frequency circuit and antenna can be set independently from the processor 720 for baseband processing. layout.
  • a specific connection medium among the communication interface 710, the processor 720, and the memory 730 is not limited.
  • the memory 730, the processor 720, and the communication interface 710 are connected through the bus 740.
  • the bus is represented by a thick line in FIG. 7, and the connection mode between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 7 , but it does not mean that there is only one bus or one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or Execute the methods, operations and logic block diagrams disclosed in the embodiments of the present application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. The operations of the methods disclosed in the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the communication device may execute the relevant steps of the user equipment in the foregoing method embodiments, and for details, refer to the implementation manners provided by the foregoing steps, which will not be repeated here.
  • each module contained therein may be realized by hardware such as a circuit, and different modules may be located in the same component (such as a chip, a circuit module, etc.) or different components in the terminal.
  • at least part of the modules may be implemented in the form of a software program, the software program runs on a processor integrated in the terminal, and the remaining (if any) modules may be implemented in hardware such as circuits.
  • the communication device may be a chip or a chip system
  • the chip 80 includes a processor 801 and a communication interface 802 .
  • the number of processors 801 may be one or more, and the number of communication interfaces 802 may be more than one.
  • the processor 801 is configured to perform the following operation: when the first service has data to be sent, determine the first carrier. Wherein, the data of the first service is transmitted through the side link SL between the communication device and the second terminal, and the first service is a service that enables hybrid automatic repeat request HARQ feedback; the first There is at least one resource pool configured with a physical sidelink feedback channel PSFCH on the carrier. sending the to-be-sent data of the first service to the second terminal through the first carrier.
  • the processor 801 is specifically configured to perform the following operations: determine a first carrier from a first carrier set, where the first carrier set includes at least one candidate carrier, and the candidate There is at least one resource pool configured with PSFCH on the carrier.
  • the processor 801 is specifically configured to perform the following operations: acquire configuration information, where the configuration information is used to indicate channel configuration information of a resource pool on a carrier supported by the communication device; Determine a candidate carrier set according to the configuration information, the candidate carrier set includes one or more carrier sets, and each carrier set in the one or more carrier sets includes at least one candidate carrier; from the The first carrier set is determined from the candidate carrier set.
  • the processor 801 is specifically configured to perform the following operations: receive capability information from the second terminal, where the capability information is used to indicate the set of carriers supported by the second terminal; The configuration information and the capability information determine the candidate carrier set.
  • the processor 801 is further configured to perform the following operation: send indication information to the second terminal, where the indication information is used to indicate the first carrier set.
  • the processor 801 is configured to perform the following operations: when there is data to be sent in the first service, determine threshold information according to the type of the first service, wherein the data of the first service passes through The sidelink SL between the communication device and the second terminal performs transmission, and the threshold information is used to indicate the channel busy rate thresholds of the first type carrier and the second type carrier, and there is at least One resource pool is configured with a physical sidelink feedback channel PSFCH, and the resource pools on the second type of carrier are not configured with PSFCH.
  • a target carrier is determined according to the determined threshold information and the measured channel busy rate of the carrier, where the target carrier is used to transmit the data to be sent of the first service.
  • the processor 801 is specifically configured to perform the following operations: if the first service is a service enabling Hybrid Automatic Repeat Request (HARQ) feedback, determine that the threshold information indicates that the first class value; if the first service is a service that does not enable HARQ feedback, then determine that the threshold information indicates a second class value; the first class value is different from the second class value.
  • HARQ Hybrid Automatic Repeat Request
  • the first type of value includes a channel busy rate threshold of the first type of carrier and a channel busy rate threshold of the second type of carrier, where the first type of carrier The channel busy rate threshold is greater than the channel busy rate threshold of the second type of carrier.
  • the second type of value includes a channel busy rate threshold of the first type of carrier and a channel busy rate threshold of the second type of carrier, where the first type of carrier The channel busy rate threshold is less than or equal to the channel busy rate threshold of the second type of carrier.
  • the processor 801 is specifically configured to perform the following operations: determine a candidate set according to the determined threshold information and the measured carrier channel busy rate, and the candidate set includes a Or multiple carriers to be selected; wherein, if the carrier to be selected is the first type of carrier to be selected, the channel busy rate of the carrier to be selected is less than the channel busy rate threshold of the carrier of the first type, if the carrier to be selected is If the selected carrier is a carrier of the second type to be selected, the channel busy rate of the carrier to be selected is less than the threshold of the channel busy rate of the carrier of the second type; and the target carrier is determined from the set of candidates.
  • each module contained therein may be implemented by means of hardware such as circuits, or at least some of the modules may be implemented by means of software programs, which run on the internal integrated components of the chip.
  • the processor 801 and the remaining (if any) modules may be realized by hardware such as circuits.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the first terminal in the foregoing method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment; the storage module 903 is used to store data and instructions; the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices.
  • the chip module 904 is configured to: determine the first carrier when there is data to be sent in the first service. Wherein, the data of the first service is transmitted through the side link SL between the communication device and the second terminal, and the first service is a service that enables hybrid automatic repeat request HARQ feedback; the first There is at least one resource pool configured with a physical sidelink feedback channel PSFCH on the carrier. sending the to-be-sent data of the first service to the second terminal through the first carrier.
  • the chip module 904 is specifically configured to: determine a first carrier from a first set of carriers, where the first set of carriers includes at least one carrier to be selected, on which there is At least one resource pool is configured with PSFCH.
  • the chip module 904 is specifically configured to: obtain configuration information, where the configuration information is used to indicate channel configuration information of a resource pool on a carrier supported by the communication device; according to the The configuration information determines a candidate carrier set, the candidate carrier set includes one or more carrier sets, and each carrier set in the one or more carrier sets includes at least one candidate carrier; from the candidate carrier The first carrier set is determined in the set.
  • the chip module 904 is specifically configured to: receive capability information from the second terminal, where the capability information is used to indicate the set of carriers supported by the second terminal; according to the configuration information and the capability information determine the set of candidate carriers.
  • the chip module 904 is further configured to: send indication information to the second terminal, where the indication information is used to indicate the first carrier set.
  • the chip module 904 is configured to determine threshold information according to the type of the first service when there is data to be sent in the first service, wherein the data of the first service passes through the communication
  • the side link SL between the device and the second terminal is used for transmission, the threshold information is used to indicate the channel busy rate threshold of the first type carrier and the second type carrier, and there is at least one resource pool on the first type carrier
  • the physical sidelink feedback channel PSFCH is configured, and the resource pools on the second type of carrier are not configured with PSFCH.
  • a target carrier is determined according to the determined threshold information and the measured channel busy rate of the carrier, where the target carrier is used to transmit the data to be sent of the first service.
  • the chip module 904 is specifically configured to: if the first service is a service that enables Hybrid Automatic Repeat Request (HARQ) feedback, determine that the threshold information indicates a value of the first type ; If the first service is a service that does not enable HARQ feedback, determine that the threshold information indicates a value of the second type; the value of the first type is different from the value of the second type.
  • HARQ Hybrid Automatic Repeat Request
  • the first type of value includes a channel busy rate threshold of the first type of carrier and a channel busy rate threshold of the second type of carrier, where the first type of carrier The channel busy rate threshold is greater than the channel busy rate threshold of the second type of carrier.
  • the second type of value includes a channel busy rate threshold of the first type of carrier and a channel busy rate threshold of the second type of carrier, where the first type of carrier The channel busy rate threshold is less than or equal to the channel busy rate threshold of the second type of carrier.
  • the chip module 904 is specifically configured to: determine a candidate set according to the determined threshold information and the measured carrier channel busy rate, and the candidate set includes one or more A carrier to be selected; wherein, if the carrier to be selected is the first type of carrier to be selected, the channel busy rate of the carrier to be selected is less than the channel busy rate threshold of the carrier of the first type, and if the carrier to be selected is For a carrier of the second type to be selected, the channel busy rate of the carrier to be selected is less than the threshold of the channel busy rate of the carrier of the second type; and the target carrier is determined from the set of candidates.
  • each module contained therein may be realized by hardware such as a circuit, and different modules may be located in the same component of the chip module (such as a chip, a circuit module, etc.) or Among the different components, or at least some of the modules can be realized by means of a software program, the software program runs on the processor integrated in the chip module, and the remaining (if any) parts of the modules can be realized by means of hardware such as circuits.
  • the embodiment of the present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instruction is run on a processor, the method flow of the above-mentioned method embodiment is realized.
  • the embodiments of the present application also provide a computer program or a computer program product, including codes or instructions, and when the codes or instructions are run on a computer, the computer is made to execute the method in the above method embodiment.

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Abstract

本申请公开了一种载波的确定方法及相关装置，该方法包括:当第一业务存在待发送数据时，第一终端确定第一载波（S101）；其中，该第一业务的数据通过该第一终端和第二终端之间的侧行链路 SL进行传输，且该第一业务为使能混合自动重传请求HARQ反馈的业务；该第一载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH；该第一终端通过该第一载波向该第二终端发送该第一业务的待发送数据（S102）。通过本申请实施例的方案，可以使得侧行通信中选择出的载波满足业务的需求。

Description

一种载波的确定方法及相关装置 技术领域
本发明涉及通信领域，尤其涉及一种载波的确定方法及相关装置。
背景技术
无线通信系统中，用户设备(或称为终端设备)和网络设备之间可以相互通信，具体的，用户设备向网络设备发送信息的通信链路被称为上行链路(uplink，UL)，网络设备向用户设备发送信息的通信链路被称为下行链路(downlink，DL)。随着通信领域的发展，为了降低网络设备的负荷，满足高速率数据业务和邻近服务的通信需求，引入了设备到设备(Device-to-Device，D2D)通信的概念。在D2D通信的应用场景中，一定距离范围内的用户设备可以不通过网络设备，直接进行相互通信。用户设备和用户设备之间的通信链路称为侧行链路(sidelink，SL)。
在侧行链路上，用户设备和用户设备之间通过载波进行数据传输。现阶段，用户设备将信道忙率(channel busy ratio，CBR)作为选择通信所使用的载波的指标。示例性的，用户设备测量得到多个载波的CBR，将CBR低于CBR门限的载波作为候选载波，在存在多个候选载波的情况下，用户设备按照CBR从小到大的顺序，选择一个或多个候选载波来进行数据传输。
用户设备之间的业务具有多样化的特点，不同的业务对载波有着不同的需求，可能导致通过信道忙率选择出的载波并不满足需要执行的业务的需求，进而影响业务的执行，使得用户体验感较差。
发明内容
本申请提供一种载波的确定方法及相关装置，可以使得侧行通信中选择出的载波满足业务的需求。
第一方面，本申请提供了一种载波的确定方法，所述方法包括：当第一业务存在待发送数据时，第一终端确定第一载波；其中，所述第一业务的数据通过所述第一终端和第二终端之间的侧行链路SL进行传输，且所述第一业务为使能混合自动重传请求HARQ反馈的业务；所述第一载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH；所述第一终端通过所述第一载波向所述第二终端发送所述第一业务的待发送数据。通过该方法，可以使得侧行通信中选择出的载波满足业务的需求。
结合第一方面，在一种可能的实现方式中，所述第一终端确定第一载波，包括：所述第一终端从第一载波集合中确定第一载波，所述第一载波集合包括至少一个待选载波，所述待选载波上存在至少一个资源池配置有PSFCH。
结合第一方面，在一种可能的实现方式中，在所述第一终端从第一载波集合中确定第一载波之前，所述方法还包括：所述第一终端获取配置信息，所述配置信息用于指示所述第一终端所支持的载波上的资源池的信道配置信息；所述第一终端根据所述配置信息确定待选载波集合，所述待选载波集合中包括一个或者多个载波集合，所述一个或者多个载波集合中的每个载波集合至少包括一个待选载波；所述第一终端从所述待选载波集合中确定 所述第一载波集合。
结合第一方面，在一种可能的实现方式中，所述方法还包括：所述第一终端接收来自第二终端的能力信息，所述能力信息用于指示所述第二终端所支持的载波集合；所述第一终端根据所述配置信息确定待选载波集合，包括：所述第一终端根据所述配置信息和所述能力信息确定所述待选载波集合。
结合第一方面，在一种可能的实现方式中，所述方法还包括：所述第一终端向所述第二终端发送指示信息，所述指示信息用于指示所述第一载波集合。
第二方面，本申请提供了一种载波的确定方法，所述方法包括：当第一业务存在待发送数据时，第一终端根据第一业务的类型确定阈值信息，其中，所述第一业务的数据通过所述第一终端和第二终端之间的侧行链路SL进行传输，所述阈值信息用于指示第一类载波和第二类载波的信道忙率阈值，所述第一类载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH，所述第二类载波上的资源池均未配置PSFCH；所述第一终端根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，所述目标载波用于传输所述第一业务的待发送数据。通过该方法，不同类型的业务可以对应有不同的阈值信息，这样可以通过不同的阈值信息选取出不同的待选载波，以便匹配不同类型的业务的需求。
结合第二方面，在一种可能的实现方式中，所述第一终端根据第一业务的类型确定阈值信息，包括：若所述第一业务为使能混合自动重传请求HARQ反馈的业务，则确定所述阈值信息指示第一类取值；若所述第一业务为非使能HARQ反馈的业务，则确定所述阈值信息指示第二类取值；所述第一类取值与所述第二类取值不同。
结合第二方面，在一种可能的实现方式中，所述第一类取值包含所述第一类载波的信道忙率阈值和所述第二类载波的信道忙率阈值，其中，所述第一类载波的信道忙率阈值大于所述第二类载波的信道忙率阈值。
结合第二方面，在一种可能的实现方式中，所述第二类取值包含所述第一类载波的信道忙率阈值和所述第二类载波的信道忙率阈值，其中，所述第一类载波的信道忙率阈值小于或者等于所述第二类载波的信道忙率阈值。
结合第二方面，在一种可能的实现方式中，所述第一终端根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，包括：所述第一终端根据确定出的阈值信息和测量得到的载波的信道忙率确定待选集合，所述待选集合中包括一个或者多个待选载波；其中，若所述待选载波为第一类待选载波，则所述待选载波的信道忙率小于所述第一类载波的信道忙率阈值，若所述待选载波为第二类待选载波，则所述待选载波的信道忙率小于所述第二类载波的信道忙率阈值；所述第一终端从所述待选集合中确定所述目标载波。
第三方面，本申请提供了一种通信装置，包括用于实现上述第一方面及其任一种可能的实现方式中的方法的单元，或者用于实现上述第二方面及其任一种可能的实现方式中的方法的单元。
第四方面，本申请提供了一种通信装置，包括处理器和收发器；所述收发器，用于接收或发送信号；所述处理器，用于执行如上述第一方面及其任一种可能的实现方式中的方法，或者用于执行如上述第二方面及其任一种可能的实现方式中的方法。
结合第四方面，在一种可能的实现方式中，所述通信装置还包括存储器：所述存储器，用于存储计算机程序；所述处理器，具体用于从所述存储器中调用所述计算机程序，使得 所述通信装置执行如上述第一方面及其任一种可能的实现方式中的方法，或者执行如上述第二方面及其任一种可能的实现方式中的方法。
第五方面，本申请提供了一种芯片，所述芯片，用于当第一业务存在待发送数据时，确定第一载波；其中，所述第一业务的数据通过第一终端和第二终端之间的侧行链路SL进行传输，且所述第一业务为使能混合自动重传请求HARQ反馈的业务；所述第一载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH；所述芯片，还用于通过所述第一载波向所述第二终端发送所述第一业务的待发送数据。
第六方面，本申请提供了一种芯片，所述芯片，用于当第一业务存在待发送数据时，根据第一业务的类型确定阈值信息，其中，所述第一业务的数据通过第一终端和第二终端之间的侧行链路SL进行传输，所述阈值信息用于指示第一类载波和第二类载波的信道忙率阈值，所述第一类载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH，所述第二类载波上的资源池均未配置PSFCH；所述芯片，还用于根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，所述目标载波用于传输所述第一业务的待发送数据。
第七方面，本申请提供了一种模组设备，所述模组设备包括通信模组、电源模组、存储模组以及芯片模组，其中：所述电源模组用于为所述模组设备提供电能；所述存储模组用于存储数据和指令；所述通信模组用于进行模组设备内部通信，或者用于所述模组设备与外部设备进行通信；所述芯片模组用于：当第一业务存在待发送数据时，确定第一载波；其中，所述第一业务的数据通过第一终端和第二终端之间的侧行链路SL进行传输，且所述第一业务为使能混合自动重传请求HARQ反馈的业务；所述第一载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH；通过所述第一载波向所述第二终端发送所述第一业务的待发送数据。
第八方面，本申请提供了一种模组设备，所述模组设备包括通信模组、电源模组、存储模组以及芯片模组，其中：所述电源模组用于为所述模组设备提供电能；所述存储模组用于存储数据和指令；所述通信模组用于进行模组设备内部通信，或者用于所述模组设备与外部设备进行通信；所述芯片模组用于：当第一业务存在待发送数据时，根据第一业务的类型确定阈值信息，其中，所述第一业务的数据通过第一终端和第二终端之间的侧行链路SL进行传输，所述阈值信息用于指示第一类载波和第二类载波的信道忙率阈值，所述第一类载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH，所述第二类载波上的资源池均未配置PSFCH；根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，所述目标载波用于传输所述第一业务的待发送数据。
第九方面，本申请提供了一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当所述计算机可读指令在通信装置上运行时，使得所述通信装置执行如上述第一方面及其任一种可能的实现方式中的方法，或者执行如上述第二方面及其任一种可能的实现方式中的方法。
第十方面，本申请提供一种计算机程序或计算机程序产品，包括代码或指令，当代码或指令在计算机上运行时，使得计算机执行如上述第一方面及其任一种可能的实现方式中的方法，或者执行如上述第二方面及其任一种可能的实现方式中的方法。
通过本申请实施例的方法，第一设备可以通过第一载波向第二终端发送第一业务的待 发送数据，由于第一载波上存在至少一个资源池配置有PSFCH，那么针对该第一业务的数据的HARQ反馈的确认信息可以通过该PSFCH进行传输，该第一载波可以满足该第一业务的需求。通过这种方式，可以使得侧行通信中选择出的载波满足业务的需求。
附图说明
图1是本申请实施例提供的一种网络架构的示意图；
图2是本申请实施例提供的一种载波的确定方法的流程图；
图3是本申请实施例提供的又一种载波的确定方法的流程图；
图4是本申请实施例提供的又一种载波的确定方法的流程图；
图5是本申请实施例提供的一种通信装置的结构示意图；
图6是本申请实施例提供的又一种通信装置的结构示意图；
图7是本申请实施例提供的又一种通信装置的结构示意图；
图8是本申请实施例提供的一种芯片的结构示意图；
图9是本申请实施例提供的一种模组设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本申请以下实施例中所使用的术语只是为了描述特定实施例的目的，而并非旨在作为对本申请的限制。如在本申请的说明书和所附权利要求书中所使用的那样，单数表达形式“一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括复数表达形式，除非其上下文中明确地有相反指示。还应当理解，本申请中使用的术语“和/或”是指并包含一个或多个所列出项目的任何或所有可能组合。
需要说明的是，本申请的说明书和权利要求书中及上述附图中的属于“第一”“第二”“第三”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述以外的顺序实施。此外，本申请的术语“包括”及其任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或服务器不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本申请实施例可以应用于图1所示的网络架构，图1所示的网络架构为无线通信系统的网络架构，该网络架构通常包括用户设备和网络设备，各个设备数量以及形态并不构成对本申请实施例的限定。图1中示意出了一个网络设备，以及两个用户设备(用户设备1和用户设备2)。
用户设备和网络设备之间可以相互通信，具体的，用户设备向网络设备发送信息的通信链路被称为上行链路(uplink，UL)，网络设备向用户设备发送信息的通信链路被称为下行链路(downlink，DL)。图1中示例性示出了用户设备1和网络设备之间的上行链路 和下行链路。示例性的，用户设备1通过Uu接口接入网络设备。需要说明的是，用户设备2和网络设备之间可以存在通信链路，也可以不存在通信链路，本申请实施例不作限制。
用户设备和用户设备之间可以相互通信，具体的，用户设备和用户设备之间的通信链路称为侧行链路(sidelink，SL)，该侧行链路还可以称为直通链路，边缘链路，等等名称，本申请实施例对链路的名称不作限制。图1中示例性示出了用户设备1和用户设备2之间的侧行链路。示例性的，用户设备1和用户设备2之间通过PC5接口进行连接。本申请中，用户设备之间通过侧行链路进行相互通信的方式可以称为侧行链路通信(或者简称为侧行通信)。在侧行链路通信中，发送数据的用户设备可以称为发送用户设备(或者称为发送终端设备)，接收数据的用户设备可以称为接收用户设备(或者称为接收终端设备)。
需要说明的是，本申请实施例提及的无线通信系统包括但不限于：物联网系统(internet of things，IoT)、第三代移动通信(3rd-generation，3G)系统、长期演进系统(long term evolution，LTE)、第五代移动通信(5th-generation，5G)系统、第六代移动通信(6th-generation，6G)系统以及未来移动通信系统。在一些实施例中，本申请实施例的技术方案还可以应用于无线局域网(Wireless Local Area Network，WLAN)网络，还可以应用于车联网(Vehicle-to-X，V2X)网络，还可以应用于非陆域(non-terrestrial networks，NTN)、增强物联网(LTE enhanced MTO，eMTC)，还可以应用于其他网络等。
本申请技术方案还适用于其他不同的网络架构，包括但不限于中继网络架构、双链接架构、车辆到任何物体(Vehicle-to-Everything，V2X)通信架构、设备到设备(Device-to-Device，D2D)通信架构、Adhoc网络中的点对点(Peer to Peer，P2P)通信架构、物联网中的机器到机器(Machine to Machine，M2M)通信架构，等等架构。
本申请实施例的用户设备(user equipment，UE)是一种具有无线通信功能的设备，可以称为终端(terminal)、终端设备、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、接入终端设备、车载终端设备、工业控制终端设备、UE单元、UE站、移动站、远方站、远程终端设备、移动设备、UE终端设备、无线通信设备、UE代理或UE装置等。需要说明的是，下述内容中，以用户设备这个名称为例进行介绍，该用户设备还可以称之为终端、终端设备、UE，等等，这些术语均可以理解为本申请实施例中的用户设备，本申请对用户设备的名称并不限制。
用户设备可以是固定的或者移动的。需要说明的是，用户设备可以支持至少一种无线通信技术，例如LTE、新空口(new radio，NR)等。例如，用户设备可以是手机(mobile phone)、平板电脑(pad)、台式机、笔记本电脑、一体机、车载终端、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、可穿戴设备、未来移动通信网络中的用户设备或者未来演进的公共移动陆地网络(public land mobile network，PLMN)中的用户设备等。在本申请的一些实施例中，用户设备还可以是具有收发功能的装置，例如芯片系统。 其中，芯片系统可以包括芯片，还可以包括其它分立器件，本申请实施例对此并不限定。
本申请实施例中网络设备是一种为用户设备提供无线通信功能的设备，也可称之为无线接入网(radio access network，RAN)设备、或接入网网元等。其中，网络设备可以支持至少一种无线通信技术，例如LTE、NR等。示例的，网络设备包括但不限于：无线局域网络(Wireless Local Area Networks，WLAN)中的接入点(Access Point，AP)、第五代移动通信系统(5th-generation，5G)中的下一代基站(generation nodeB，gNB)、演进型节点B(evolved node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved node B、或home node B，HNB)、基带单元(baseband unit，BBU)、收发点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心等。网络设备还可以是云无线网络络(cloud radio access network，CRAN)场景下的无线控制器、集中单元(centralized unit，CU)、和/或分布单元(distributed unit，DU)，或者网络设备可以为中继站、接入点、车载设备、终端设备、可穿戴设备以及未来移动通信中的网络设备或者未来演进的PLMN中的网络设备等。在一些实施例中，网络设备还可以为具有为用户设备提供无线通信功能的装置，例如芯片系统。示例的，芯片系统可以包括芯片，还可以包括其它分立器件。在一些实施例中，网络设备还可以与互联网协议(Internet Protocol，IP)网络进行通信，例如因特网(internet)，私有的IP网，或其他数据网等。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
接下来，对本申请实施例涉及到的一些概念进行介绍。
1.设备到设备(Device-to-Device，D2D)通信
为了降低网络设备的负荷，满足高速率数据业务和邻近服务的通信需求，引入了设备到设备(Device-to-Device，D2D)通信的概念。在D2D通信系统中，传输数据就无需网络设备(或者称为核心设备或中间设备)的干预，这样可以降低通信系统中网络设备的压力，提升频谱利用率和吞吐量，扩大了网络容量。
在D2D通信的应用场景中，用户设备和用户设备之间的通信链路称为侧行链路(sidelink，SL)。可选的，该侧行链路还可以称为直通链路，边缘链路，等等名称，本申请实施例对链路的名称不作限制。在侧行链路上，用户设备和用户设备之间通过载波进行数据传输。
2.载波聚合(carrier aggregation，CA)机制
为了提高通信系统的吞吐率，满足对数据传输速率的要求，在侧行链路上引入了CA机制。CA机制的原理是：将多个连续或者非连续的分量载波(或称为载波单元)聚合在一起传输数据，获取更大的传输带宽，从而获取更高的峰值速率和吞吐量。在CA机制中，将2个或更多的载波单元(component carrier，CC)聚合在一起以支持更大的传输带宽。每个载波单元的带宽可以为5MHz、10MHz、15MHz和20MHz，等等。在本申请实施例中，将2个或更多的载波单元聚合后形成的载波称为载波集合，或者载波组合。
为了高效地利用零碎的频谱，载波聚合支持不同载波单元之间的聚合。示例性的，可以包括如下载波单元：a)相同或不同带宽的载波单元。b)同一频带内，邻接或非邻接的载波单元。c)不同频带内的载波单元。
在一些可能的实现方式中，侧行链路支持广播，用户设备将信道忙率(channel busy ratio，CBR)作为选择通信所使用的载波的指标。示例性的，用户设备测量得到多个载波的CBR，将CBR低于CBR门限的载波作为候选载波，在存在多个候选载波的情况下，用户设备按照CBR从小到大的顺序，选择一个或多个候选载波来进行数据传输。在另一些可能的实现方式中，侧行链路支持单播，用户设备可以根据发送用户设备和接收用户设备的能力选择载波集合。示例性的，发送用户设备可以预先通过能力交互信息获得接收用户设备所支持的侧行链路载波集合，然后从双方均支持的载波集合中选出通信所使用的载波集合。
由于用户设备之间的业务具有多样化的特点，不同的业务对载波有着不同的需求，可能导致通过信道忙率或者用户设备支持能力选择出的载波并不满足需要执行的业务的需求，进而影响业务的执行，使得用户体验感较差。鉴于此，提出本申请实施例的方案。
参见图2，是本申请实施例提供的一种载波的确定方法的流程图。该方法可以应用于图1所示的网络架构中。示例性的，下述内容中的第一终端可以为图1中的用户设备1，第二终端可以为图1中的用户设备2；或者，下述内容中的第一终端可以为图1中的用户设备2，第二终端可以为图1中的用户设备1。该方法包括以下步骤：
S101、当第一业务存在待发送数据时，第一终端确定第一载波。
其中，该第一业务的数据通过第一终端和第二终端之间的侧行链路进行传输，且该第一业务为使能混合自动重传请求(hybrid automatic repeat request，HARQ)反馈的业务。需要说明的是，第一业务为使能HARQ反馈的业务可以理解为：接收该第一业务的数据的接收端(即第二终端)，需要向该第一业务的数据的发送端(即第一终端)反馈数据的确认信息，该确认信息用于指示接收到的该第一业务的数据正确与否。示例性的，该确认信息可以包括确认字符(acknowledge character，ACK)和否认字符(negative acknowledge character，NACK)，其中，ACK表示接收端接收到了正确的数据，NACK表示接收端接收到了错误的数据，需要发送端重传该数据。
在一个示例中，第一终端按块(block)为单位向第二终端发送第一业务的数据。第一终端使用块中的数据计算出一个循环冗余校验(cyclic redundancy check，CRC)，并随着该块一起发送到接收端。接收端根据收到的数据计算出一个CRC，并与接收到的CRC进行比较，如果二者相等，接收端就认为成功地收到了正确的数据，并向发送端回复一个“ACK”；如果二者不相等，接收端就认为收到了错误的数据，并向发送端回复一个“NACK”，以要求发送端重传该块。如果在某个特定的周期内，发送端没有收到接收端的回复，则发送端假定之前发送的块没有到达接收端，发送端自动重传该块。在这种方式中，第一业务可以称为使能HARQ反馈的业务。
在侧行链路上，用户设备和用户设备之间通过载波进行数据传输。需要说明的是，一个载波上可以配置一个或者多个资源池，示例性的，一个载波上最多可以8个资源池。一个资源池上可以配置一个或者多个信道，示例性的，信道可以包括以下一项或者多项：物理侧行链路反馈信道(physical sidelink feedback channel，PSFCH)、物理侧行链路广播信 道(physical sidelink broadcast channel，PSBCH)、物理侧行链路发现信道(physical sidelink discovery channel，PSDCH)、物理侧行链路控制信道(physical sidelink control channel(PSCCH)、物理侧行链路共享信道(physical sidelink shared channel，PSSCH)，等等。
其中，该PSFCH可以用于传输HARQ反馈中的确认信息(示例性的，ACK和NACK)。具体的，该第一载波上存在至少一个资源池配置有PSFCH。需要说明的是，在本申请实施例中，该PSFCH作为传输HARQ反馈中的确认信息的一种示例信道，在不同的系统和不同的应用场景中，传输HARQ反馈中的确认信息的信道可能有不同的名称，本申请的实施例对此并不做限定。由于第一载波上存在至少一个资源池配置有PSFCH，那么针对该第一业务的数据的HARQ反馈的确认信息可以通过该PSFCH进行传输，该第一载波可以满足该第一业务的需求，通过这种方式，可以使得侧行通信中选择出的载波满足业务的需求。
可选的，在一种实现方式中，第一终端可以获取配置信息，第一终端可以通过该配置信息确定第一载波。其中，该配置信息用于指示该第一终端所支持的载波上的资源池的信道配置信息。在这种方式中，第一终端可以通过配置信息知晓哪些载波上存在资源池配置有PSFCH。该第一载波可以是存在至少一个资源池配置有PSFCH的载波中的一个或者多个载波。
在一个示例中，第一终端所支持的载波为：载波1、载波2、载波3、载波4和载波5。从配置信息中可以获取到如下信息：载波1上配置有资源池1-1、资源池1-2、资源池1-3，其中资源池1-1配置了PSFCH，载波3上配置有资源池3-1、资源池3-2，其中资源池3-1配置了PSFCH，载波2、载波4和载波5上的资源池都没有配置PSFCH。那么，第一载波可以是载波1和/或载波3。
可选的，在另一种实现方式中，第一终端还可以测量得到的自身支持的载波的信道忙率，根据该信道忙率和配置信息确定第一载波。示例性的，第一终端可以将CBR低于CBR门限且存在至少一个资源池配置有PSFCH的载波作为候选载波。该第一载波可以是候选载波中的一个或者多个载波。
在一个示例中，第一终端所支持的载波为：载波1、载波2、载波3、载波4和载波5，其分别对应的信道忙率为：20％、40％、60％、30％、10％，CBR门限为35％。从配置信息中可以获取到如下信息：载波1上配置有资源池1-1、资源池1-2、资源池1-3，其中资源池1-1配置了PSFCH，载波3上配置有资源池3-1、资源池3-2，其中资源池3-1配置了PSFCH，载波2、载波4和载波5上的资源池都没有配置PSFCH。那么，第一载波可以是载波1。
S102、第一终端通过该第一载波向第二终端发送该第一业务的待发送数据。
由于第一载波上存在至少一个资源池配置有PSFCH，那么针对该第一业务的数据的HARQ反馈的确认信息可以通过该PSFCH进行传输，该第一载波可以满足该第一业务的需求。
另外需要说明的是，在这种方式中，若第二业务存在待发送数据时，第一终端可以选择自身支持的任一个或者多个载波传输第二业务的待发送数据。该第二业务的数据通过第一终端和第二终端之间的侧行链路进行传输，且该第二业务为非使能HARQ反馈的业务。需要说明的是，第二业务为非使能HARQ反馈的业务可以理解为：接收该第二业务的数据的接收端(即第二终端)，不需要向该第二业务的数据的发送端(即第一终端)反馈数据 的确认信息，该确认信息用于指示接收到的该第二业务的数据正确与否。
可选的，第一终端还可以根据自身支持的载波的CBR选择一个或者多个载波传输第二业务的待发送数据。示例性的，第一终端测量得到自身支持的载波的CBR，将CBR低于CBR门限的载波作为候选载波，从候选载波中选取一个或多个载波来传输第二业务的待发送数据。
可选的，第一终端可以选择自身支持且除去存在至少一个资源池配置有PSFCH的载波外的，任一个或者多个载波传输第二业务的待发送数据。通过这种方式，可以将存在至少一个资源池配置有PSFCH的载波资源预留给使能HARQ反馈的业务，可以满足后续使能HARQ反馈的业务的需求。另外，在这种方式中，还可以结合载波的CBR对第一终端自身支持且除去存在至少一个资源池配置有PSFCH的载波外的载波进行选择，此处不再赘述。
通过图2所示的方法，第一设备可以通过第一载波向第二终端发送第一业务的待发送数据，由于第一载波上存在至少一个资源池配置有PSFCH，那么针对该第一业务的数据的HARQ反馈的确认信息可以通过该PSFCH进行传输，该第一载波可以满足该第一业务的需求。通过这种方式，可以使得侧行通信中选择出的载波满足业务的需求。
参见图3，是本申请实施例提供的又一种载波的确定方式的流程图。该方法可以应用于图1所示的网络架构中。示例性的，下述内容中的第一终端可以为图1中的用户设备1，第二终端可以为图1中的用户设备2；或者，下述内容中的第一终端可以为图1中的用户设备2，第二终端可以为图1中的用户设备1。该方法包括以下步骤：
S201、第一终端获取配置信息，该配置信息用于指示第一终端所支持的载波上的资源池的信道配置信息。
可选的，第一终端可以存储有该配置信息，第一终端可以从自身设备的存储介质中读取该配置信息。可选的，第一终端可以从其他设备(例如，网络设备)获取该配置信息，该其他设备为该第一终端分配载波资源，或者存储有该第一终端的配置信息。
示例性的，该配置信息可以包含第一终端所支持的载波的标识，第一终端所支持的载波上的资源池的标识，各个资源池上配置的信道的信息，等等信息。在一种示例中，第一终端通过数据表的形式记录该配置信息，参见表1，表1中表示了一种可能的配置信息。需要说明的是，该表1中仅示例性示出了部分载波的配置信息，该第一终端可以支持更多的载波。另外需要说明的是，表1仅为示例，第一终端记录该配置信息的方式还可以存在其他形式，本申请实施例不作限制。
表1
Figure PCTCN2023071696-appb-000001
Figure PCTCN2023071696-appb-000002
由表1可以看出，载波1上配置有资源池1-1、资源池1-2、资源池1-3，其中，资源池1-1配置了PSFCH、PSBCH、PSDCH、PSCCH、PSSCH，资源池1-2配置了PSBCH、PSDCH、PSSCH，资源池1-3配置了PSDCH、PSCCH、PSSCH。
S202、第一终端根据该配置信息确定待选载波集合。
其中，该待选载波集合中包括一个或者多个载波集合，该一个或者多个载波集合中的每个载波集合至少包括一个待选载波，该待选载波上存在至少一个资源池配置有PSFCH。有关于PSFCH的介绍可以参照上述内容中的介绍，此处不再赘述。
在一种可能的实现方式中，第一终端根据该配置信息确定待选载波集合的方式可以为：第一终端获取自身的能力信息，第一终端根据自身的能力信息和该配置信息确定该待选载波集合。其中，该第一终端的能力信息用于指示第一终端所支持的载波集合。该第一终端所支持的载波集合可以理解为：第一终端可以支持在这些载波集合中的任一载波集合所包含的载波上同时接收和/或发送数据。在一个示例中，该能力信息可以包含第一终端所支持的载波集合所对应的载波标识。例如，该能力信息包含[1,4]、[1,5]、[3,4,5]，可以表示为：第一终端可以支持在载波1和载波4上，或者载波1和载波5上，或者载波3、载波4和载波5上同时接收和/或发送数据。
可选的，第一终端需要获取自身的能力信息。在一种可能的方式中，第一终端可以存储有该能力信息，第一终端可以从自身设备的存储介质中读取该能力信息。在另一种可能的方式中，第一终端可以从其他设备(例如，网络设备)获取该能力信息，该其他设备为该第一终端分配载波资源，或者存储有该第一终端的能力信息。
在一个示例中，第一终端支持的载波集合为[1,2]、[3,4]、[2,4]、[1,5]，从第一终端的配置信息中可以获取到如下信息：载波1上配置有资源池1-1、资源池1-2、资源池1-3，其中资源池1-1配置了PSFCH，载波3上配置有资源池3-1、资源池3-2，其中资源池3-1配置了PSFCH，载波2、载波4和载波5上的资源池都没有配置PSFCH。可以看出，由于仅有载波1和载波3存在配置有PSFCH的资源池，那么该待选载波集合为[1,2]、[3,4]和[1,5]。
在另一些实施例中，该方法还包括：第一终端接收来自第二终端的能力信息，该能力信息用于指示第二终端所支持的载波集合。
其中，该第二终端所支持的载波集合中包括一个或者多个载波集合。该第二终端所支持的载波集合可以理解为：第二终端可以支持在这些载波集合中的任一载波集合所包含的载波上同时接收和/或发送数据。该第二终端获取自身的能力信息的方式可以参照上述内容中介绍的第一终端获取自身的能力信息的方式，此不再赘述。
在一个示例中，该能力信息可以包含第二终端所支持的载波集合所对应的载波标识。例如，该能力信息包含[1,2,4]、[1,3,5]、[2,3,4,5]，可以表示为：第二终端可以支持在载波1、载波2和载波4上，或者载波1、载波3和载波5上，或者载波2、载波3、载波4和载波5上同时接收和/或发送数据。
在另一种可能的实现方式中，第一终端根据该配置信息确定待选载波集合的方式还可 以为：第一终端根据该配置信息和该第二终端的能力信息确定该待选载波集合。
可选的，第一终端根据该配置信息和该第二终端的能力信息确定待选载波集合的方式可以为：第一终端根据第一终端自身的能力信息和第二终端的能力信息确定共同支持的载波集合。第一终端根据该配置信息从该共同支持的载波集合中确定该待选载波集合。该共同支持的载波集合可以理解为：第一终端可以支持在这些载波集合中的任一载波集合所包含的载波上同时发送数据，且第二终端可以支持在这些载波集合中的任一载波集合所包含的载波上同时接收数据，或者，第一终端可以支持在这些载波集合中的任一载波集合所包含的载波上同时接收数据，且第二终端可以支持在这些载波集合中的任一载波集合所包含的载波上同时发送数据。也即是说，该共同支持的载波集合为该第一终端所支持的载波集合和该第二终端所支持的载波集合的交集。
在一个示例中，第一终端支持的载波集合为[1,2]、[3,4]、[2,4]、[1,5]，第二终端支持的载波集合为[1,2]、[3,4]、[2,4]。从配置信息中可以获取到如下信息：载波1上配置有资源池1-1、资源池1-2、资源池1-3，其中资源池1-1配置了PSFCH，载波3上配置有资源池3-1、资源池3-2，其中资源池3-1配置了PSFCH，载波2、载波4和载波5上的资源池都没有配置PSFCH。可以看出，该共同支持的载波集合为[1,2]、[3,4]、[2,4]，又由于仅有载波1和载波3存在配置有PSFCH的资源池，那么该待选载波集合为[1,2]和[3,4]。
S203、第一终端从该待选载波集合中确定该第一载波集合。
可选的，该第一终端从该待选载波集合中确定出一个载波集合作为该第一载波集合。
在一种可能的实现方式中，该第一终端可以从该待选载波集合中确定出任意一个载波集合作为该第一载波集合。
在又一种可能的实现方式中，第一终端可以测量待选载波集合中包含的载波的CBR，根据各个载波的CBR计算每个待选载波集合的平均CBR，选取平均CBR最小的待选载波集合作为第一载波集合。示例性的，该待选载波集合为[1,2]和[3,4]，第一终端测量出的载波1、载波2、载波3和载波4分别对应的信道忙率为：20％、40％、60％、10％。计算得到载波集合[1,2]的平均CBR为30％，载波集合[3,4]的平均CBR为35％，那么确定出的第一载波集合为载波集合[1,2]。通过这种方式，可以综合考虑载波集合中的各个载波的CBR情况。
在又一种可能的实现方式中，第一终端可以测量待选载波集合中包含的载波的CBR，选取包含CBR最小的载波的待选载波集合作为第一载波集合。示例性的，该待选载波集合为[1,2]和[3,4]，第一终端测量出的载波1、载波2、载波3和载波4分别对应的信道忙率为：20％、40％、60％、10％。CBR最小的载波为载波4，那么确定出的第一载波集合为载波集合[3,4]。由于多个载波所构成的载波集合的整体性能很可能是由传输性能最好(等效为CBR最小)的载波决定的，这种方式可以考虑到载波集合的整体性能。
第一终端还可能存在其他从该待选载波集合中确定出第一载波集合的方式，此处不再一一赘述。
S204、第一终端向第二终端发送指示信息，该指示信息用于指示该第一载波集合。
相应的，第二终端接收来自第一终端的指示信息，后续第一终端和第二终端可以在第一载波集合上进行通信。
在一种可能的实现方式中，在第一终端确定第一终端和第二终端之间存在第一业务后， 第一终端可以按照上述方式确定第一载波集合。其中，第一业务的数据通过该第一终端和第二终端之间的侧行链路进行传输，且第一业务为使能HARQ反馈的业务。该使能HARQ反馈的业务的介绍可以参照上述步骤S201中的介绍，此处不再赘述。通过这种方式，第一终端和第二终端通信所使用的第一载波集合中包含存在至少一个资源池配置有PSFCH的载波，该第一载波集合可以满足第一业务的需求。
在又一种可能的实现方式中，在第一终端和第二终端建立了侧行链路之后，第一终端可以按照上述方式确定第一载波集合。在第一终端确定第一终端和第二终端之间存在第一业务后，该第一终端向第二终端发送第一指示信息，该第一指示信息用于指示第一载波集合，以使得第一终端和第二终端在第一载波集合上进行通信。在第一终端确定第一终端和第二终端之间不存在第一业务后，该第一终端向第二终端发送第二指示信息，该第二指示信息用于指示第二载波集合，以使得第一终端和第二终端在第二载波集合上进行通信。其中，该第一载波集合与该第二载波集合可以相同，也可以不同。第二载波集合中不要求至少包括一个待选载波，该待选载波上存在至少一个资源池配置有PSFCH。第二载波集合可以存在其他的选取方式(或称为规则、要求)。通过这种方式，在第一业务存在期间，第一终端和第二终端通信所使用的第一载波集合中包含存在至少一个资源池配置有PSFCH的载波，该第一载波集合可以满足第一业务的需求。在第一业务不存在的情况下，第一终端和第二终端可以使用第二载波集合进行通信，该第二载波集合的选取放宽了对载波集合中的载波的信道配置的要求，使得第二载波集合的可选情况更多，整体的传输性能可能更优质。这种方式中，可以考虑不同场景下的业务需求，选取不同场景中适宜的载波集合。
在一些实施例中，在第一终端和第二终端在第一载波集合上进行通信之后，该方法还可以包括：
S205、当第一业务存在待发送数据时，第一终端从第一载波集合中确定第一载波。
其中，该第一载波上存在至少一个资源池配置有PSFCH，也即是说，该第一载波属于上述内容中介绍的待选载波。
S206、第一终端通过该第一载波向第二终端发送该第一业务的待发送数据。
需要说明的是，步骤S205和步骤S206实施方式还可以参照上述图2所介绍的内容，此处不再赘述。
参见图4，是本申请实施例提供的又一种载波的确定方法的流程图。该方法可以应用于图1所示的网络架构中。示例性的，下述内容中的第一终端可以为图1中的用户设备1，第二终端可以为图1中的用户设备2；或者，下述内容中的第一终端可以为图1中的用户设备2，第二终端可以为图1中的用户设备1。该方法包括以下步骤：
S301、当第一业务存在待发送数据时，第一终端根据第一业务的类型确定阈值信息。
其中，该第一业务的数据通过该第一终端和第二终端之间的侧行链路进行传输。具体的，该阈值信息用于指示第一类载波和第二类载波的信道忙率阈值，该第一类载波上存在至少一个资源池配置有PSFCH，该第二类载波上的资源池均未配置PSFCH。该PSFCH的介绍可以参照上述内容中的介绍，此处不再赘述。在本实施例中，不同类型的业务可以对应有不同的阈值信息，这样可以通过不同的阈值信息选取出不同的待选载波，以便匹配不同类型的业务的需求。
在一些实施例中，第一终端根据第一业务的类型确定阈值信息的方式可以为：若该第一业务为使能HARQ反馈的业务，则确定该阈值信息指示第一类取值；若该第一业务为非使能HARQ反馈的业务，则确定该阈值信息指示第二类取值；该第一类取值与该第二类取值不同。其中，使能HARQ反馈的业务和非使能HARQ反馈的业务的介绍，可以参照上述内容中的介绍，此处不再赘述。
可选的，该第一类取值包含该第一类载波的信道忙率阈值和该第二类载波的信道忙率阈值，其中，该第一类载波的信道忙率阈值大于该第二类载波的信道忙率阈值。由于第一类载波的信道忙率阈值大于该第二类载波的信道忙率阈值，那么依据信道忙率阈值和载波的信道忙率选取待选载波的过程中，第一类载波被选取到的可能性就会更大，这样就有利于筛选出存在至少一个资源池配置有PSFCH的载波，匹配第一业务的需求。
可选的，该第二类取值包含该第一类载波的信道忙率阈值和该第二类载波的信道忙率阈值，其中，该第一类载波的信道忙率阈值小于或者等于该第二类载波的信道忙率阈值。在一种可能的情况中，第一类载波的信道忙率阈值等于该第二类载波的信道忙率阈值，则依据信道忙率阈值和载波的信道忙率选取待选载波的过程中，第一类载波和第二类载波被选取到的可能性均等。在另一种可能的情况中，第一类载波的信道忙率阈值小于该第二类载波的信道忙率阈值，则依据信道忙率阈值和载波的信道忙率选取待选载波的过程中，第二类载波被选取到的可能性更大，这样就有利于筛选出资源池均未配置PSFCH的载波，可以将第一类载波的资源预留给使能HARQ反馈的业务，可以满足后续使能HARQ反馈的业务的需求。
S302、第一终端根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，该目标载波用于传输该第一业务的待发送数据。
在一些实施例中，第一终端根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波的方式为：该第一终端根据确定出的阈值信息和测量得到的载波的信道忙率确定待选集合，该待选集合中包括一个或者多个待选载波；该第一终端从该待选集合中确定该目标载波。其中，若该待选载波为第一类待选载波，则该待选载波的信道忙率小于(或者为：小于或者等于)该第一类载波的信道忙率阈值，若该待选载波为第二类待选载波，则该待选载波的信道忙率小于(或者为：小于或者等于)该第二类载波的信道忙率阈值。
可选的，该第一终端可以从该待选集合中任选一个或者多个待选载波作为该目标载波。第一终端从该待选集合中选取目标载波还可以存在其他的选取方式，本申请实施例不作限制。
在一个示例中，第一终端所支持的载波为：载波1、载波2、载波3、载波4和载波5，其分别对应的信道忙率为：20％、35％、30％、25％、40％。从配置信息中可以获取到如下信息：载波1上配置有资源池1-1、资源池1-2、资源池1-3，其中资源池1-1配置了PSFCH，载波3上配置有资源池3-1、资源池3-2，其中资源池3-1配置了PSFCH，载波2、载波4和载波5上的资源池都没有配置PSFCH。那么，载波1和载波3为第一类载波，载波2、载波4和载波5为第二类载波。
若该第一业务为使能HARQ反馈的业务，则确定该阈值信息指示第一类取值。示例性的，该第一类取值中的第一类载波的信道忙率阈值为40％，第二类载波的信道忙率阈值为20％。那么，待选集合中的包括的待选载波为载波1和载波3。可以看出，待选集合中包 括第一类载波的可能性更大，第一类载波在待选集合中的数目更多。
若该第一业务为非使能HARQ反馈的业务，则确定该阈值信息指示第二类取值。示例性的，该第二类取值中的第一类载波的信道忙率阈值为25％，第二类载波的信道忙率阈值为40％。那么，待选集合中的包括的待选载波为载波1，载波2和载波4。可以看出，待选集合中包括第二类载波的可能性更大，第二类载波在待选集合中的数目更多。
通过图4所示的方法，不同类型的业务可以对应有不同的阈值信息，这样可以通过不同的阈值信息选取出不同的待选载波，以便匹配不同类型的业务的需求。
可以理解的是，为了实现上述实施例中功能，用户设备包括了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本申请中所公开的实施例描述的各示例的单元及方法步骤，本申请能够以硬件或硬件和计算机软件相结合的形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用场景和设计约束条件。
参见图5，图5示出了本申请实施例的一种通信装置的结构示意图。该通信装置可以是用户设备，也可以是用户设备中的装置，或者是能够和用户设备匹配使用的装置。图5所示的通信装置50可以包括确定单元501和发送单元502。其中：
确定单元501，用于当第一业务存在待发送数据时，确定第一载波。其中，所述第一业务的数据通过通信装置和第二终端之间的侧行链路SL进行传输，且所述第一业务为使能混合自动重传请求HARQ反馈的业务；所述第一载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH。确定单元501所执行的操作可以参照上述图2所对应的实施例中的步骤S101的介绍，或者可以参照上述图3所对应的实施例中的步骤S205的介绍。
发送单元502，用于通过所述第一载波向所述第二终端发送所述第一业务的待发送数据。
在一种可能的实现方式中，确定单元501具体用于：从第一载波集合中确定第一载波，所述第一载波集合包括至少一个待选载波，所述待选载波上存在至少一个资源池配置有PSFCH。
在一种可能的实现方式中，所述通信装置还包括获取单元，所述获取单元用于：获取配置信息，所述配置信息用于指示所述通信装置所支持的载波上的资源池的信道配置信息；确定单元501还用于：根据所述配置信息确定待选载波集合，所述待选载波集合中包括一个或者多个载波集合，所述一个或者多个载波集合中的每个载波集合至少包括一个待选载波；从所述待选载波集合中确定所述第一载波集合。
在一种可能的实现方式中，所述通信装置还包括接收单元，所述接收单元用于接收来自第二终端的能力信息，所述能力信息用于指示所述第二终端所支持的载波集合；确定单元501具体用于：根据所述配置信息和所述能力信息确定所述待选载波集合。
在一种可能的实现方式中，所述发送单元502还用于：向所述第二终端发送指示信息，所述指示信息用于指示所述第一载波集合。
图5所示的通信装置，可以通过第一载波向第二终端发送第一业务的待发送数据，由于第一载波上存在至少一个资源池配置有PSFCH，那么针对该第一业务的数据的HARQ反馈的确认信息可以通过该PSFCH进行传输，该第一载波可以满足该第一业务的需求。 通过这种通信装置，可以使得侧行通信中选择出的载波满足业务的需求。
参见图6，图6示出了本申请实施例的又一种通信装置的结构示意图。该通信装置可以是用户设备，也可以是用户设备中的装置，或者是能够和用户设备匹配使用的装置。图6所示的通信装置60可以包括第一确定单元601和第二确定单元602。其中：
第一确定单元601，用于当第一业务存在待发送数据时，根据第一业务的类型确定阈值信息，其中，所述第一业务的数据通过所述通信装置和第二终端之间的侧行链路SL进行传输，所述阈值信息用于指示第一类载波和第二类载波的信道忙率阈值，所述第一类载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH，所述第二类载波上的资源池均未配置PSFCH。第一确定单元601所执行的操作可以参照上述图4所对应的实施例中的步骤S301的介绍。
第二确定单元602，用于根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，所述目标载波用于传输所述第一业务的待发送数据。第二确定单元602所执行的操作可以参照上述图4所对应的实施例中的步骤S302的介绍。
在一种可能的实现方式中，第一确定单元601具体用于：若所述第一业务为使能混合自动重传请求HARQ反馈的业务，则确定所述阈值信息指示第一类取值；若所述第一业务为非使能HARQ反馈的业务，则确定所述阈值信息指示第二类取值；所述第一类取值与所述第二类取值不同。
在一种可能的实现方式中，所述第一类取值包含所述第一类载波的信道忙率阈值和所述第二类载波的信道忙率阈值，其中，所述第一类载波的信道忙率阈值大于所述第二类载波的信道忙率阈值。
在一种可能的实现方式中，所述第二类取值包含所述第一类载波的信道忙率阈值和所述第二类载波的信道忙率阈值，其中，所述第一类载波的信道忙率阈值小于或者等于所述第二类载波的信道忙率阈值。
在一种可能的实现方式中，第二确定单元602具体用于：根据确定出的阈值信息和测量得到的载波的信道忙率确定待选集合，所述待选集合中包括一个或者多个待选载波；其中，若所述待选载波为第一类待选载波，则所述待选载波的信道忙率小于所述第一类载波的信道忙率阈值，若所述待选载波为第二类待选载波，则所述待选载波的信道忙率小于所述第二类载波的信道忙率阈值；从所述待选集合中确定所述目标载波。
图6所示的通信装置，不同类型的业务可以对应有不同的阈值信息，这样可以通过不同的阈值信息选取出不同的待选载波，以便匹配不同类型的业务的需求。
上述通信装置例如可以是：芯片、或者芯片模组。关于上述实施例中描述的各个装置、产品包含的各个模块或者各个单元，其可以是软件模块，也可以是硬件模块，或者也可以部分是软件模块，部分是硬件模块。例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，或者，至少部分模块可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，不同的模块可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块可以采用软件程序的方 式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块可以采用电路等硬件方式实现；对于应用于或集成于用户设备的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，不同的模块可以位于用户设备内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块可以采用软件程序的方式实现，该软件程序运行于用户设备内部集成的处理器，剩余的(如果有)部分模块可以采用电路等硬件方式实现。
如图7所示为本申请实施例提供的另一种通信装置70，用于实现上述图2-图4中第一终端的功能。该装置可以是用户设备或用于用户设备的装置。用于用户设备的装置可以为用户设备内的芯片系统或芯片。其中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
通信装置70包括至少一个处理器720，用于实现本申请实施例提供的方法中用户设备的数据处理功能。通信装置70还可以包括通信接口710，用于实现本申请实施例提供的方法中用户设备的收发操作。在本申请实施例中，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口，用于通过传输介质和其它设备进行通信。例如，通信接口710用于通信装置70中的装置可以和其它设备进行通信。处理器720利用通信接口710收发数据，并用于实现上述方法实施例图2-图4所述的方法。
通信装置70还可以包括至少一个存储器730，用于存储程序指令和/或数据。存储器730和处理器720耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器720可能和存储器730协同操作。处理器720可能执行存储器730中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
当通信装置70开机后，处理器720可以读取存储器730中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器720对待发送的数据进行基带处理后，输出基带信号至射频电路(图未示意)，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到通信装置70时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器720，处理器720将基带信号转换为数据并对该数据进行处理。
在另一种实现中，所述的射频电路和天线可以独立于进行基带处理的处理器720而设置，例如在分布式场景中，射频电路和天线可以与独立于通信装置，呈拉远式的布置。
本申请实施例中不限定上述通信接口710、处理器720以及存储器730之间的具体连接介质。本申请实施例在图7中以存储器730、处理器720以及通信接口710之间通过总线740连接，总线在图7中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图7中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
通信装置70具体是用于用户设备时，例如通信装置70具体是芯片或者芯片系统时，通信接口710所输出或接收的可以是基带信号。通信装置70具体是用户设备时，通信接口710所输出或接收的可以是射频信号。在本申请实施例中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或 者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、操作及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的操作可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
需要说明的是，该通信装置可以执行前述方法实施例中用户设备的相关步骤，具体可参见上述各个步骤所提供的实现方式，在此不再赘述。
对于应用于或集成于通信装置的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，不同的模块可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块可以采用电路等硬件方式实现。
对于通信装置可以是芯片或芯片系统的情况，可参见图8所示的芯片的结构示意图。该芯片80包括处理器801和通信接口802。其中，处理器801的数量可以是一个或多个，通信接口802的数量可以是多个。
在一种实施例中，该处理器801被配置用于执行如下操作：当第一业务存在待发送数据时，确定第一载波。其中，所述第一业务的数据通过通信装置和第二终端之间的侧行链路SL进行传输，且所述第一业务为使能混合自动重传请求HARQ反馈的业务；所述第一载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH。通过所述第一载波向所述第二终端发送所述第一业务的待发送数据。
在一种可能的实现方式中，该处理器801被配置具体用于执行如下操作：从第一载波集合中确定第一载波，所述第一载波集合包括至少一个待选载波，所述待选载波上存在至少一个资源池配置有PSFCH。
在一种可能的实现方式中，该处理器801被配置具体用于执行如下操作：获取配置信息，所述配置信息用于指示所述通信装置所支持的载波上的资源池的信道配置信息；根据所述配置信息确定待选载波集合，所述待选载波集合中包括一个或者多个载波集合，所述一个或者多个载波集合中的每个载波集合至少包括一个待选载波；从所述待选载波集合中确定所述第一载波集合。
在一种可能的实现方式中，该处理器801被配置具体用于执行如下操作：接收来自第二终端的能力信息，所述能力信息用于指示所述第二终端所支持的载波集合；根据所述配置信息和所述能力信息确定所述待选载波集合。
在一种可能的实现方式中，该处理器801被配置还用于执行如下操作：向所述第二终端发送指示信息，所述指示信息用于指示所述第一载波集合。
在另一种实施例中，该处理器801被配置用于执行如下操作：当第一业务存在待发送数据时，根据第一业务的类型确定阈值信息，其中，所述第一业务的数据通过所述通信装置和第二终端之间的侧行链路SL进行传输，所述阈值信息用于指示第一类载波和第二类载波的信道忙率阈值，所述第一类载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH，所述第二类载波上的资源池均未配置PSFCH。根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，所述目标载波用于传输所述第一业务的待发送数据。
在一种可能的实现方式中，该处理器801被配置具体用于执行如下操作：若所述第一业务为使能混合自动重传请求HARQ反馈的业务，则确定所述阈值信息指示第一类取值；若所述第一业务为非使能HARQ反馈的业务，则确定所述阈值信息指示第二类取值；所述第一类取值与所述第二类取值不同。
在一种可能的实现方式中，所述第一类取值包含所述第一类载波的信道忙率阈值和所述第二类载波的信道忙率阈值，其中，所述第一类载波的信道忙率阈值大于所述第二类载波的信道忙率阈值。
在一种可能的实现方式中，所述第二类取值包含所述第一类载波的信道忙率阈值和所述第二类载波的信道忙率阈值，其中，所述第一类载波的信道忙率阈值小于或者等于所述第二类载波的信道忙率阈值。
在一种可能的实现方式中，该处理器801被配置具体用于执行如下操作：根据确定出的阈值信息和测量得到的载波的信道忙率确定待选集合，所述待选集合中包括一个或者多个待选载波；其中，若所述待选载波为第一类待选载波，则所述待选载波的信道忙率小于所述第一类载波的信道忙率阈值，若所述待选载波为第二类待选载波，则所述待选载波的信道忙率小于所述第二类载波的信道忙率阈值；从所述待选集合中确定所述目标载波。
对于应用于或集成于芯片的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，或者，至少部分模块可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器801，剩余的(如果有)部分模块可以采用电路等硬件方式实现。
如图9所示，图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中第一终端的相关步骤，该模组设备90包括：通信模组901、电源模组902、存储模组903以及芯片模组904。
其中，所述电源模组902用于为所述模组设备提供电能；所述存储模组903用于存储数据和指令；所述通信模组901用于进行模组设备内部通信，或者用于所述模组设备与外部设备进行通信。
在一种实施例中，所述芯片模组904用于：当第一业务存在待发送数据时，确定第一载波。其中，所述第一业务的数据通过通信装置和第二终端之间的侧行链路SL进行传输，且所述第一业务为使能混合自动重传请求HARQ反馈的业务；所述第一载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH。通过所述第一载波向所述第二终端发送所述第一业务的待发送数据。
在一种可能的实现方式中，所述芯片模组904具体用于：从第一载波集合中确定第一载波，所述第一载波集合包括至少一个待选载波，所述待选载波上存在至少一个资源池配置有PSFCH。
在一种可能的实现方式中，所述芯片模组904具体用于：获取配置信息，所述配置信息用于指示所述通信装置所支持的载波上的资源池的信道配置信息；根据所述配置信息确定待选载波集合，所述待选载波集合中包括一个或者多个载波集合，所述一个或者多个载波集合中的每个载波集合至少包括一个待选载波；从所述待选载波集合中确定所述第一载波集合。
在一种可能的实现方式中，所述芯片模组904具体用于：接收来自第二终端的能力信 息，所述能力信息用于指示所述第二终端所支持的载波集合；根据所述配置信息和所述能力信息确定所述待选载波集合。
在一种可能的实现方式中，所述芯片模组904还用于：向所述第二终端发送指示信息，所述指示信息用于指示所述第一载波集合。
在另一种实施例中，所述芯片模组904用于：当第一业务存在待发送数据时，根据第一业务的类型确定阈值信息，其中，所述第一业务的数据通过所述通信装置和第二终端之间的侧行链路SL进行传输，所述阈值信息用于指示第一类载波和第二类载波的信道忙率阈值，所述第一类载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH，所述第二类载波上的资源池均未配置PSFCH。根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，所述目标载波用于传输所述第一业务的待发送数据。
在一种可能的实现方式中，所述芯片模组904具体用于：若所述第一业务为使能混合自动重传请求HARQ反馈的业务，则确定所述阈值信息指示第一类取值；若所述第一业务为非使能HARQ反馈的业务，则确定所述阈值信息指示第二类取值；所述第一类取值与所述第二类取值不同。
在一种可能的实现方式中，所述第一类取值包含所述第一类载波的信道忙率阈值和所述第二类载波的信道忙率阈值，其中，所述第一类载波的信道忙率阈值大于所述第二类载波的信道忙率阈值。
在一种可能的实现方式中，所述第二类取值包含所述第一类载波的信道忙率阈值和所述第二类载波的信道忙率阈值，其中，所述第一类载波的信道忙率阈值小于或者等于所述第二类载波的信道忙率阈值。
在一种可能的实现方式中，所述芯片模组904具体用于：根据确定出的阈值信息和测量得到的载波的信道忙率确定待选集合，所述待选集合中包括一个或者多个待选载波；其中，若所述待选载波为第一类待选载波，则所述待选载波的信道忙率小于所述第一类载波的信道忙率阈值，若所述待选载波为第二类待选载波，则所述待选载波的信道忙率小于所述第二类载波的信道忙率阈值；从所述待选集合中确定所述目标载波。
对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，不同的模块可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块可以采用电路等硬件方式实现。
本申请实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在处理器上运行时，上述方法实施例的方法流程得以实现。
本申请实施例还提供一种计算机程序或计算机程序产品，包括代码或指令，当代码或指令在计算机上运行时，使得计算机执行如上述方法实施例的方法。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某些操作可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本申请所必须的。
本申请提供的各实施例的描述可以相互参照，对各个实施例的描述都各有侧重，某个 实施例中没有详述的部分，可以参见其他实施例的相关描述。为描述的方便和简洁，例如关于本申请实施例提供的各装置、设备的功能以及执行的操作可以参照本申请方法实施例的相关描述，各方法实施例之间、各装置实施例之间也可以互相参考、结合或引用。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (20)

  1. 一种载波的确定方法，其特征在于，所述方法包括：
    当第一业务存在待发送数据时，第一终端确定第一载波；其中，所述第一业务的数据通过所述第一终端和第二终端之间的侧行链路SL进行传输，且所述第一业务为使能混合自动重传请求HARQ反馈的业务；所述第一载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH；
    所述第一终端通过所述第一载波向所述第二终端发送所述第一业务的待发送数据。
  2. 根据权利要求1所述的方法，其特征在于，所述第一终端确定第一载波，包括：
    所述第一终端从第一载波集合中确定第一载波，所述第一载波集合包括至少一个待选载波，所述待选载波上存在至少一个资源池配置有PSFCH。
  3. 根据权利要求2所述的方法，其特征在于，在所述第一终端从第一载波集合中确定第一载波之前，所述方法还包括：
    所述第一终端获取配置信息，所述配置信息用于指示所述第一终端所支持的载波上的资源池的信道配置信息；
    所述第一终端根据所述配置信息确定待选载波集合，所述待选载波集合中包括一个或者多个载波集合，所述一个或者多个载波集合中的每个载波集合至少包括一个待选载波；
    所述第一终端从所述待选载波集合中确定所述第一载波集合。
  4. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    所述第一终端接收来自第二终端的能力信息，所述能力信息用于指示所述第二终端所支持的载波集合；
    所述第一终端根据所述配置信息确定待选载波集合，包括：
    所述第一终端根据所述配置信息和所述能力信息确定所述待选载波集合。
  5. 根据权利要求3所述的方法，其特征在于，所述第一终端从所述待选载波集合中确定所述第一载波集合包括：
    所述第一终端测量所述待选载波集合中包含的待选载波的信道忙率；
    根据各个待选载波的信道忙率计算每个待选载波集合的平均信道忙率；
    将平均信道忙率最小的待选载波集合确定为所述第一载波集合。
  6. 根据权利要求3所述的方法，其特征在于，所述第一终端从所述待选载波集合中确定所述第一载波集合包括：
    所述第一终端测量所述待选载波集合中包含的待选载波的信道忙率；
    将包含信道忙率最小的待选载波的待选载波集合确定为所述第一载波集合。
  7. 根据权利要求2-6任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端向所述第二终端发送指示信息，所述指示信息用于指示所述第一载波集合。
  8. 一种载波的确定方法，其特征在于，所述方法包括：
    当第一业务存在待发送数据时，第一终端根据第一业务的类型确定阈值信息，其中，所述第一业务的数据通过所述第一终端和第二终端之间的侧行链路SL进行传输，所述阈值信息用于指示第一类载波和第二类载波的信道忙率阈值，所述第一类载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH，所述第二类载波上的资源池均未配置PSFCH；
    所述第一终端根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，所述目标载波用于传输所述第一业务的待发送数据。
  9. 根据权利要求8所述的方法，其特征在于，所述第一终端根据第一业务的类型确定阈值信息，包括：
    若所述第一业务为使能混合自动重传请求HARQ反馈的业务，则确定所述阈值信息指示第一类取值；
    若所述第一业务为非使能HARQ反馈的业务，则确定所述阈值信息指示第二类取值；所述第一类取值与所述第二类取值不同。
  10. 根据权利要求9所述的方法，其特征在于，所述第一类取值包含所述第一类载波的信道忙率阈值和所述第二类载波的信道忙率阈值，其中，所述第一类载波的信道忙率阈值大于所述第二类载波的信道忙率阈值。
  11. 根据权利要求9所述的方法，其特征在于，所述第二类取值包含所述第一类载波的信道忙率阈值和所述第二类载波的信道忙率阈值，其中，所述第一类载波的信道忙率阈值小于或者等于所述第二类载波的信道忙率阈值。
  12. 根据权利要求8-11任一项所述的方法，其特征在于，所述第一终端根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，包括：
    所述第一终端根据确定出的阈值信息和测量得到的载波的信道忙率确定待选集合，所述待选集合中包括一个或者多个待选载波；其中，若所述待选载波为第一类待选载波，则所述待选载波的信道忙率小于所述第一类载波的信道忙率阈值，若所述待选载波为第二类待选载波，则所述待选载波的信道忙率小于所述第二类载波的信道忙率阈值；
    所述第一终端从所述待选集合中确定所述目标载波。
  13. 一种通信装置，其特征在于，包括用于实现权利要求1-12任一项所述方法的单元。
  14. 一种通信装置，其特征在于，包括处理器和收发器；
    所述收发器，用于接收或发送信号；
    所述处理器，用于执行如权利要求1-12任一项所述的方法。
  15. 根据权利要求14所述的通信装置，其特征在于，所述通信装置还包括存储器：
    所述存储器，用于存储计算机程序；
    所述处理器，具体用于从所述存储器中调用所述计算机程序，使得所述通信装置执行如权利要求1-12任一项所述的方法。
  16. 一种芯片，其特征在于，
    所述芯片，用于当第一业务存在待发送数据时，确定第一载波；其中，所述第一业务的数据通过第一终端和第二终端之间的侧行链路SL进行传输，且所述第一业务为使能混合自动重传请求HARQ反馈的业务；所述第一载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH；
    所述芯片，还用于通过所述第一载波向所述第二终端发送所述第一业务的待发送数据。
  17. 一种芯片，其特征在于，
    所述芯片，用于当第一业务存在待发送数据时，根据第一业务的类型确定阈值信息，其中，所述第一业务的数据通过第一终端和第二终端之间的侧行链路SL进行传输，所述阈值信息用于指示第一类载波和第二类载波的信道忙率阈值，所述第一类载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH，所述第二类载波上的资源池均未配置PSFCH；
    所述芯片，还用于根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，所述目标载波用于传输所述第一业务的待发送数据。
  18. 一种模组设备，其特征在于，所述模组设备包括通信模组、电源模组、存储模组以及芯片模组，其中：
    所述电源模组用于为所述模组设备提供电能；
    所述存储模组用于存储数据和指令；
    所述通信模组用于进行模组设备内部通信，或者用于所述模组设备与外部设备进行通信；
    所述芯片模组用于：
    当第一业务存在待发送数据时，确定第一载波；其中，所述第一业务的数据通过第一终端和第二终端之间的侧行链路SL进行传输，且所述第一业务为使能混合自动重传请求HARQ反馈的业务；所述第一载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH；
    通过所述第一载波向所述第二终端发送所述第一业务的待发送数据。
  19. 一种模组设备，其特征在于，所述模组设备包括通信模组、电源模组、存储模组以及芯片模组，其中：
    所述电源模组用于为所述模组设备提供电能；
    所述存储模组用于存储数据和指令；
    所述通信模组用于进行模组设备内部通信，或者用于所述模组设备与外部设备进行通信；
    所述芯片模组用于：
    当第一业务存在待发送数据时，根据第一业务的类型确定阈值信息，其中，所述第一业务的数据通过第一终端和第二终端之间的侧行链路SL进行传输，所述阈值信息用于指示第一类载波和第二类载波的信道忙率阈值，所述第一类载波上存在至少一个资源池配置有物理侧行链路反馈信道PSFCH，所述第二类载波上的资源池均未配置PSFCH；
    根据确定出的阈值信息和测量得到的载波的信道忙率，确定目标载波，所述目标载波用于传输所述第一业务的待发送数据。
  20. 一种计算机可读存储介质，其特征在于，所述计算机存储介质中存储有计算机可读指令，当所述计算机可读指令在通信装置上运行时，使得所述通信装置执行权利要求1-12任一项所述的方法。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210099975A1 (en) * 2019-09-30 2021-04-01 Qualcomm Incorporated Sidelink feedback transmission in resource pool
CN112822778A (zh) * 2019-11-15 2021-05-18 联发科技股份有限公司 用于侧行链路传送的方法及用户设备
US20210176751A1 (en) * 2018-04-05 2021-06-10 Telefonaktiebolaget Lm Ericsson (Publ) Mac-phy model for sidelink carrier (re)selection
WO2021206466A1 (en) * 2020-04-09 2021-10-14 Lg Electronics Inc. Sidelink harq feedback and resource pool selection
CN113711663A (zh) * 2019-02-15 2021-11-26 中兴通讯股份有限公司 用于设备到设备的链路的资源配置和选择
WO2021251643A1 (en) * 2020-06-09 2021-12-16 Lg Electronics Inc. Resource selection for multiple harq processes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210176751A1 (en) * 2018-04-05 2021-06-10 Telefonaktiebolaget Lm Ericsson (Publ) Mac-phy model for sidelink carrier (re)selection
CN113711663A (zh) * 2019-02-15 2021-11-26 中兴通讯股份有限公司 用于设备到设备的链路的资源配置和选择
US20210099975A1 (en) * 2019-09-30 2021-04-01 Qualcomm Incorporated Sidelink feedback transmission in resource pool
CN112822778A (zh) * 2019-11-15 2021-05-18 联发科技股份有限公司 用于侧行链路传送的方法及用户设备
WO2021206466A1 (en) * 2020-04-09 2021-10-14 Lg Electronics Inc. Sidelink harq feedback and resource pool selection
WO2021251643A1 (en) * 2020-06-09 2021-12-16 Lg Electronics Inc. Resource selection for multiple harq processes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SHARP: "Remaining issues on physical layer procedures for NR sidelink", 3GPP TSG RAN WG1 MEETING #100BIS-E R1-2002390, 11 April 2020 (2020-04-11), XP051875599 *

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