WO2023165387A1 - Procédé et dispositif de communication - Google Patents

Procédé et dispositif de communication Download PDF

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Publication number
WO2023165387A1
WO2023165387A1 PCT/CN2023/077625 CN2023077625W WO2023165387A1 WO 2023165387 A1 WO2023165387 A1 WO 2023165387A1 CN 2023077625 W CN2023077625 W CN 2023077625W WO 2023165387 A1 WO2023165387 A1 WO 2023165387A1
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WO
WIPO (PCT)
Prior art keywords
carrier
information
terminal device
configuration
configurations
Prior art date
Application number
PCT/CN2023/077625
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English (en)
Chinese (zh)
Inventor
才宇
徐海博
薛丽霞
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202210420954.2A external-priority patent/CN116761266A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023165387A1 publication Critical patent/WO2023165387A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the technical field of communication, and in particular to a communication method and device.
  • SL Sidelink
  • V2X vehicle to everything
  • Different terminal devices may be configured with the same or different carriers. If different carriers are configured for different terminal devices, the terminal device as the sending end sends sidelink data to the terminal device as the receiving end on the carrier of the terminal device, and the receiving end is configured with another carrier, then the receiving end It will only listen on this other carrier, so the receiving end cannot receive the sidelink data. This problem needs to be solved urgently.
  • Embodiments of the present application provide a communication method and device, which are used to improve the receiving success rate of a receiving end.
  • a first communication method is provided, which can be executed by a terminal device, or by other devices including terminal device functions, or by a chip system (or chip) or other functional modules, the chip system or functional modules
  • the function of the terminal device can be realized, and the chip system or the functional module is set in the terminal device, for example.
  • the terminal device is, for example, the first terminal device.
  • the method includes: determining N types of carrier configurations, each of the N types of carrier configurations includes a carrier for the first terminal device to send information to the second terminal device, and/or includes a carrier for the second terminal device
  • the terminal device sends information carriers to the first terminal device, where N is a positive integer; and sends first configuration information to the second terminal device, where the first configuration information is used to indicate the N types of carrier configurations.
  • the first terminal device may send first configuration information to the second terminal device, and each carrier configuration indicated by the first configuration information may indicate a carrier used for the first terminal device to send information to the second terminal device, And/or indicate the carrier used for the second terminal device to send information to the first terminal device.
  • the second terminal device can determine on which carrier(s) the second terminal device should receive information from the first terminal device, and/or determine which carrier(s) the second terminal device should receive information from the first terminal device on The first terminal device sends information. That is to say, through the first configuration information, both the transmitting and receiving parties can specify the carrier used by the two parties for communication, so that the information sent by the transmitting end can be correctly received by the receiving end, and the receiving success rate of the receiving end is improved.
  • the first configuration information includes frequency information of the carrier, or includes the The index of the carrier.
  • the carrier can be indicated through the frequency information of the carrier, which is relatively clear.
  • it may be indicated by the index of the carrier.
  • the index of the carrier has a small amount of information, which is beneficial to save signaling overhead.
  • the method further includes: receiving confirmation information from the second terminal device, where the confirmation information is used to instruct the second terminal device to accept the first of the N types of carrier configurations.
  • Carrier configuration or instructing the second terminal device to accept part of the carriers included in the first carrier configuration of the N types of carrier configurations; or, receiving rejection information from the second terminal device, where the rejection information is used to indicate the
  • the second terminal device rejects the N types of carrier configurations; or, receiving second configuration information from the second terminal device, where the second configuration information is used to indicate the carrier configuration expected by the second terminal device.
  • the second terminal device may accept one of the N carrier configurations, or accept a part of the configuration included in one of the N carrier configurations.
  • the second terminal device can be considered to have accepted the N carrier configurations. carrier configuration. Then the second terminal device can send confirmation information to the first terminal device, so that the configuration process ends, and the first terminal device and the second terminal device can use the configuration accepted by the second terminal device to communicate. Alternatively, the second terminal device may not accept the N types of carrier configurations, and the second terminal device may send rejection information and/or second configuration information to the first terminal device. If the first terminal device receives the rejection information, the first terminal device may reconfigure the carrier for the second terminal device, or may also stop the configuration process.
  • the first terminal device can use the second configuration information as a reference to reconfigure the carrier for the second terminal device, which can not only improve the configuration success rate, but also make the configured The carrier meets the requirements of the second terminal device.
  • the method before determining the N types of carrier configurations, further includes: receiving capability information from the second terminal device, where the capability information includes one or more of the following: the first The frequency band information supported by the second terminal device, the frequency band combination information supported by the second terminal device, or the support capability information of the second terminal device for multiple carriers.
  • the first terminal device can first obtain the carrier from the second terminal device. capability information.
  • the method before receiving capability information from the second terminal device, the method further includes: sending capability query information to the second terminal device, where the capability query information is used to request the The second terminal device provides capability information.
  • the second terminal device may proactively send capability information to the first terminal device without a request from the first terminal device, which can reduce signaling overhead.
  • the second terminal device may also send capability information to the first terminal device when requested by the first terminal device, so as to reduce sending of redundant information.
  • the capability query information further includes one or more of the following information: bandwidth information, carrier number information, or separation level information, where the bandwidth information is used to indicate the The second terminal device provides a frequency band or frequency band combination capable of supporting the bandwidth information; the carrier number information is used to instruct the second terminal device to provide a frequency band or frequency band combination capable of supporting the carrier number information; the separation level The information is used to instruct the second terminal device to provide a frequency band or frequency band combination capable of supporting the separation level information.
  • the above one or more items of information included in the capability query information can be collectively referred to as screening information, that is, through screening information, the second terminal device can be ordered to send capability information that meets the screening information to the first terminal device, so that the first terminal device The capability information obtained by the equipment is more valuable.
  • the method further includes: sending the capability information to an access network device.
  • the carrier configured for the second terminal device may be determined by the first terminal device, or may be determined by the access network device. If it is determined by the access network device, the first terminal device may send the capability information of the second terminal device to the access network device, so that the access network device determines which carriers are configured for the second terminal device.
  • determining the N types of carrier configurations includes: receiving third configuration information from an access network device, where the third configuration information is used to indicate the N types of carrier configurations. If the carrier configured for the second terminal device is determined by the access network device, the access network device can send the third configuration information to the first terminal device, so that the first terminal device can determine N types of carrier configurations based on this, and then pass The first configuration information indicates N types of carrier configurations to the second terminal device.
  • the method before determining the N types of carrier configurations, further includes: receiving auxiliary information from the second terminal device, where the auxiliary information is used to indicate K types of carrier configurations, and the K
  • the carriers included in the K carrier configurations are the carriers expected to be configured by the second terminal device, wherein each carrier configuration in the K carrier configurations includes a carrier for the first terminal device to send information to the second terminal device
  • the carrier and/or, includes a carrier used for the second terminal device to send information to the first terminal device, and K is a positive integer.
  • the second terminal device may send capability information and/or auxiliary information to the first terminal device. Both the capability information and the auxiliary information can assist the first terminal device or the access network device to configure a suitable carrier for the second terminal device, so as to improve configuration success rate.
  • the carriers included in the N carrier configurations are carriers included in the K carrier configurations.
  • what the first terminal device or the access network device configures for the second terminal device may be the carrier that the second terminal device expects to configure, which makes the configuration result more in line with the needs of the second terminal device. This has a higher probability of acceptance and therefore increases the configuration success rate.
  • the auxiliary information includes frequency information of carriers included in the K carrier configurations, or includes indexes of carriers included in the K carrier configurations.
  • the auxiliary information further includes bandwidth information of carriers included in the K carrier configurations, where the bandwidth information of the first carrier included in the K carrier configurations is used to indicate the The bandwidth of the first carrier configured by the second terminal device is less than or equal to the bandwidth corresponding to the bandwidth information.
  • the auxiliary information may also indicate the maximum bandwidth of a carrier. If the carrier is to be configured for the second terminal device, the configured bandwidth of the carrier may be less than or equal to the maximum bandwidth of the carrier. In this way, a suitable carrier is configured for the second terminal device, and the parameters of the carrier are also within the acceptance range of the second terminal device, so as to improve the configuration success rate.
  • the K types of carrier configurations include the carrier being used by the second terminal device.
  • the first terminal device or the access network device can configure the carrier used by the second terminal device for the second terminal device, then the second terminal device does not need to monitor/receive on the new carrier, but continues to continue on the used carrier It only needs to monitor/receive, which can reduce the power consumption of the second terminal device and simplify the implementation of the second terminal device.
  • the method further includes: sending first indication information to the second terminal device, where the first indication information is used to indicate activation of a second carrier, and the second carrier is the The first carrier configuration or carriers in the part of carriers.
  • the amount of data transmitted between the first terminal device and the second terminal device may not be balanced. For example, a large amount of data may be transmitted in certain time periods, while a small amount of data may be transmitted in certain time periods.
  • the embodiment of the present application considers that if the second terminal device always monitors/receives on all the carriers configured for the second terminal device, the power consumption of the second terminal device is relatively high.
  • the first terminal device (or access network device) can dynamically activate or deactivate the corresponding carrier according to the communication between the first terminal device and the second terminal device, so as to ensure that the first terminal device and the second terminal device
  • the two terminal devices can communicate normally, and the power consumption of the terminal devices can also be reduced.
  • the method further includes: receiving second indication information from the access network device, where the second indication information is used to indicate activation of the second carrier; or, according to the data to be transmitted Determine to activate the second carrier according to the corresponding relationship between the quantity and the first threshold; or, determine to activate the second carrier according to the first parameter, and the first parameter includes one or more of the following: the first The QoS information of the service between the terminal device and the second terminal device, the configuration of the first carrier or the CBR information of the partial carrier, or the data volume information buffered by the first terminal device interest.
  • the access network device may determine whether to activate or deactivate the corresponding carrier, or the first terminal device may also determine whether to activate or deactivate the corresponding carrier.
  • the first terminal device can determine whether to activate or deactivate the corresponding carrier according to corresponding parameters, or the first terminal device can also determine whether to activate or deactivate the corresponding carrier according to the amount of data, such as the amount of data to be sent to the second The data volume of the terminal equipment, so that the carrier activation or deactivation can meet the current communication needs.
  • the method further includes: sending first indication information to the second terminal device, where the first indication information is used to indicate deactivation of a third carrier, and the third carrier is The first carrier configuration or carriers in the part of carriers.
  • the method further includes: receiving third indication information from the access network device, where the third indication information is used to indicate deactivation of the third carrier; or, according to the to-be-transmitted According to the corresponding relationship between the amount of data and the first threshold, determine to deactivate the third carrier; or, determine to deactivate the third carrier according to the first parameter, where the first parameter includes one or more of the following: The QoS information of the service between the first terminal device and the second terminal device, the configuration of the first carrier or the CBR information of the partial carrier, or the data volume information buffered by the first terminal device.
  • the first terminal device when the first carrier configuration or a fourth carrier in the partial carrier is activated, start or restart a second timer corresponding to the fourth carrier; and/or , when sending information to the second terminal device and/or receiving information from the second terminal device through the first carrier configuration or a fourth carrier in the partial carrier, start or restart the connection with the fourth carrier
  • the second timer corresponding to the carrier For example, the first terminal device sends the instruction information for instructing to deactivate the third carrier to the second terminal device, but the second UE does not receive the instruction information, then the second terminal device will continue to listen/monitor on the third carrier reception, resulting in waste of power for the second terminal device.
  • the first terminal device and the second terminal device in the embodiment of the present application can maintain a timer for a carrier.
  • a terminal device can maintain a timer for a carrier. Through this timer, even if no indication information is received In a case where the terminal device can also deactivate the corresponding carrier, thereby reducing the power consumption of the terminal device.
  • start or Restarting the second timer corresponding to the fourth carrier includes: starting or restarting the second timer when sending the information to the second terminal device or receiving the information from the second terminal device is completed. a second timer; or, starting or restarting the second timer in the first time unit after sending the information to the second terminal device or receiving the information from the second terminal device.
  • the method further includes: deactivating the fourth carrier when the second timer expires. If the second timer expires, no matter whether the first terminal device receives the corresponding indication information, or whether the first terminal device determines that the fourth carrier needs to be deactivated, the first terminal device can deactivate the fourth carrier to reduce the The power consumption of the first terminal equipment is reduced.
  • the method further includes: when the third transmission function of the first terminal device on the fourth carrier in the first carrier configuration or the partial carrier is activated, Start or restart a fifth timer corresponding to the fourth carrier; and/or, when the fourth carrier in the first carrier configuration or the partial carrier and the second terminal device perform a third transmission function , start or restart a fifth timer corresponding to the fourth carrier.
  • the third transfer function includes the first terminal device receiving information from the second terminal device.
  • a terminal device can also maintain two timers for a carrier, and these two timers monitor different transmission functions of the terminal device on the carrier respectively, so that finer-grained control can be realized.
  • the transmission function corresponding to the timer may be deactivated, while the transmission function not corresponding to the timer is not restricted and may continue to be executed. This can not only reduce the power consumption of the terminal equipment, but also reduce the impact on other transmission functions, and improve the carrier utilization rate and communication success rate.
  • the method further includes: when the fifth timer expires, deactivating the third transmission function of the first terminal device on the fourth carrier.
  • the method further includes: when a fourth transmission function of the first terminal device on a fourth carrier in the first carrier configuration or the partial carrier is activated, Start or restart the sixth timer corresponding to the fourth carrier; and/or, when the fourth carrier in the first carrier configuration or the partial carrier and the second terminal device perform a fourth transmission function , start or restart a sixth timer corresponding to the fourth carrier.
  • the fourth transmission function includes the first terminal device sending information to the second terminal device.
  • the method further includes: when the sixth timer expires, deactivating the fourth transmission function of the first terminal device on the fourth carrier.
  • a second communication method which can be executed by a terminal device, or by other devices including terminal device functions, or by a chip system (or, chip) or other functional modules, the chip system or functional modules
  • the function of the terminal device can be realized, and the chip system or the functional module is set in the terminal device, for example.
  • the terminal device is, for example, the second terminal device.
  • the method includes: receiving first configuration information from a first terminal device; determining N types of carrier configurations according to the first configuration information, each of the N types of carrier configurations includes The carrier on which the second terminal device sends information, and/or includes a carrier used for the second terminal device to send information to the first terminal device, and N is a positive integer.
  • the first configuration information includes frequency information of the carrier, or includes an index of the carrier.
  • the method further includes: sending confirmation information to the first terminal device, where the confirmation information is used to instruct the second terminal device to accept the first of the N types of carrier configurations.
  • Carrier configuration or instruct the second terminal device to accept part of the carriers included in the first carrier configuration of the N types of carrier configurations; or, send rejection information to the first terminal device, where the rejection information is used to indicate the
  • the second terminal device rejects the N types of carrier configurations; or, sends second configuration information to the first terminal device, where the second configuration information is used to indicate the desired carrier configuration of the second terminal device.
  • the method before receiving the first configuration information from the first terminal device, the method further includes: sending capability information of the second terminal device to the first terminal device, the capability The information includes one or more of the following: frequency band information supported by the second terminal device, frequency band combination information supported by the second terminal device, or information on the support capability of the second terminal device for multiple carriers.
  • the method before sending the capability information of the second terminal device to the first terminal device, the method further includes: receiving capability query information from the first terminal device, the The capability query information is used to request the second terminal device to provide capability information.
  • the capability query information further includes one or more of the following information: bandwidth information, carrier number information, or separation level information, where the bandwidth information is used to indicate the The second terminal device provides a frequency band or frequency band combination that can support the bandwidth information; the carrier number information is used to indicate that the second terminal The terminal device provides a frequency band or frequency band combination capable of supporting the carrier quantity information; the separation level information is used to instruct the second terminal device to provide a frequency band or frequency band combination capable of supporting the separation level information.
  • the method further includes: sending auxiliary information to the first terminal device, where the auxiliary information is used to indicate K types of carrier configurations, and the carriers included in the K types of carrier configurations are all The carrier desired to be configured by the second terminal device, wherein each of the K carrier configurations includes a carrier for the first terminal device to send information to the second terminal device, and/or includes The carrier used for the second terminal device to send information to the first terminal device, K is a positive integer.
  • the carriers included in the N carrier configurations are carriers included in the K carrier configurations.
  • the auxiliary information includes frequency information of carriers included in the K carrier configurations, or includes indexes of the carriers included in the K carrier configurations.
  • the auxiliary information further includes bandwidth information of carriers included in the K carrier configurations, where the bandwidth information of the first carrier included in the K carrier configurations is used to indicate the The bandwidth of the first carrier configured by the second terminal device is less than or equal to the bandwidth corresponding to the bandwidth information.
  • the K types of carrier configurations include the carrier being used by the second terminal device.
  • the method further includes: receiving first indication information from the second terminal device, where the first indication information is used to indicate activation of the second carrier, or to indicate deactivation of the second carrier.
  • the second carrier or the third carrier is a carrier in the first carrier configuration or the partial carrier.
  • the method further includes: when the first carrier configuration or a fourth carrier in the part of carriers is activated, starting or restarting the first carrier corresponding to the fourth carrier a timer; and/or, when receiving information from the first terminal device and/or sending information to the first terminal device through the first carrier configuration or a fourth carrier in the partial carrier, start or Restart the first timer corresponding to the fourth carrier.
  • starting or restarting the first timer corresponding to the fourth carrier including: starting or restarting at the moment when the information is received from the first terminal device or the information is sent to the first terminal device.
  • the first timer or, starting or restarting the first timer in the first time unit after receiving the information from the first terminal device or sending the information to the first terminal device device.
  • the method further includes: deactivating the fourth carrier when the first timer expires.
  • the method further includes: when the first transmission function of the second terminal device on the fourth carrier in the first carrier configuration or the partial carrier is activated, Start or restart the third timer corresponding to the fourth carrier; and/or, when the first terminal device performs the first transmission function through the first carrier configuration or the fourth carrier in the partial carrier , start or restart a third timer corresponding to the fourth carrier.
  • the first transmission function includes the second terminal device sending information to the first terminal device.
  • the method further includes: when the third timer expires, deactivating the first transmission function of the second terminal device on the fourth carrier.
  • the method further includes: when a second transmission function of the second terminal device on a fourth carrier in the first carrier configuration or the partial carrier is activated, Start or restart a fourth timer corresponding to the fourth carrier; and/or, when the first carrier is configured or the fourth carrier in the partial carrier is connected to the When the second terminal device executes the second transmission function, start or restart a fourth timer corresponding to the fourth carrier.
  • the second transmission function includes the second terminal device receiving information from the first terminal device.
  • the method further includes: when the fourth timer expires, deactivating the second transmission function of the second terminal device on the fourth carrier.
  • a third communication method is provided, which can be executed by access network equipment, or by other equipment including access network equipment functions, or by a chip system (or, chip) or other functional modules, the chip The system or functional module can realize the function of the access network equipment, and the chip system or functional module is set in the access network equipment, for example.
  • the access network device is, for example, a base station.
  • the method includes: determining N types of carrier configurations, each of the N types of carrier configurations includes a carrier for the first terminal device to send information to the second terminal device, and/or includes a carrier for the second terminal device
  • the terminal device sends information carriers to the first terminal device, where N is a positive integer; and sends third configuration information to the first terminal device, where the third configuration information is used to indicate the N types of carrier configurations.
  • the third configuration information includes frequency information of the carrier, or includes an index of the carrier.
  • the method further includes: receiving confirmation information from the first terminal device, where the confirmation information is used to instruct the second terminal device to accept the first of the N types of carrier configurations.
  • Carrier configuration or instructing the second terminal device to accept part of the carriers included in the first carrier configuration of the N types of carrier configurations; or, receiving rejection information from the first terminal device, where the rejection information is used to indicate the The second terminal device rejects the N types of carrier configurations; or, receiving second configuration information from the first terminal device, where the second configuration information is used to indicate the desired carrier configuration of the second terminal device.
  • the method before determining the N types of carrier configurations, further includes: receiving capability information from the first terminal device, where the capability information includes one or more of the following: the first The frequency band information supported by the second terminal device, the frequency band combination information supported by the second terminal device, or the support capability information of the second terminal device for multiple carriers.
  • the method before determining the N types of carrier configurations, further includes: receiving auxiliary information of the second terminal device from the first terminal device, where the auxiliary information is used to indicate K Carrier configurations, the carriers included in the K carrier configurations are the carriers expected to be configured by the second terminal device, wherein each carrier configuration in the K carrier configurations includes The carrier for the second terminal device to send information, and/or, includes a carrier for the second terminal device to send information to the first terminal device, and K is a positive integer.
  • the carriers included in the N carrier configurations are carriers included in the K carrier configurations.
  • the auxiliary information includes frequency information of carriers included in the K carrier configurations, or includes indexes of carriers included in the K carrier configurations.
  • the auxiliary information further includes bandwidth information of carriers included in the K carrier configurations, where the bandwidth information of the first carrier included in the K carrier configurations is used to indicate the The bandwidth of the first carrier configured by the second terminal device is less than or equal to the bandwidth corresponding to the bandwidth information.
  • the method further includes: determining to activate a second carrier according to a first parameter, where the second carrier is a carrier in the configuration of the first carrier or a carrier in the partial carrier, and the second carrier A parameter includes one or more of the following: QoS information of services between the first terminal device and the second terminal device, the configuration of the first carrier, or The CBR information of the part of the carrier, or the data volume information buffered by the first terminal device; sending second indication information to the first terminal device, where the second indication information is used to indicate activation of the second carrier .
  • the method further includes: determining to deactivate a third carrier according to a first parameter, where the third carrier is a carrier in the configuration of the first carrier or in the partial carrier, the The first parameter includes one or more of the following: QoS information of services between the first terminal device and the second terminal device, configuration of the first carrier or CBR information of the partial carrier, or, the The data volume information cached by the first terminal device; and sending second indication information to the first terminal device, where the second indication information is used to instruct deactivation of the third carrier.
  • a communication device may be the first terminal device described in any one of the first aspect to the third aspect.
  • the communication device has the function of the above-mentioned first terminal device.
  • the communication device is, for example, the first terminal device, or a functional module in the first terminal device, such as a baseband device or a chip system (or, chip), and the like.
  • the communication device may be the second terminal device described in any one of the first aspect to the third aspect.
  • the communication device has the function of the above-mentioned second terminal device.
  • the communication device is, for example, the second terminal device, or a functional module in the second terminal device, such as a baseband device or a chip system (or, chip), and the like.
  • the communication device includes a baseband device and a radio frequency device.
  • the communication device includes a processing unit (also called a processing module sometimes) and a transceiver unit (also called a transceiver module sometimes).
  • the transceiver unit can realize the sending function and the receiving function.
  • the sending unit sometimes also called the sending module.
  • the receiving unit sometimes also called receiving module.
  • the sending unit and the receiving unit can be the same functional module, which is called the transceiver unit, and this functional module can realize the sending function and the receiving function; or, the sending unit and the receiving unit can be different functional modules, and the transceiver unit is for these A general term for functional modules.
  • the processing unit is configured to determine N types of carrier configurations, and the N types of carrier configurations Each carrier configuration includes a carrier used for the first terminal device to send information to the second terminal device, and/or includes a carrier used for the second terminal device to send information to the first terminal device, and N is a positive integer ;
  • the transceiving unit (or, the sending unit) is configured to send first configuration information to the second terminal device, where the first configuration information is used to indicate the N types of carrier configurations.
  • the transceiver unit (or, the receiving unit) is configured to receive from the first terminal The device receives first configuration information; the processing unit is configured to determine N types of carrier configurations according to the first configuration information, and each carrier configuration in the N types of carrier configurations includes a The carrier for the second terminal device to send information, and/or, includes a carrier for the second terminal device to send information to the first terminal device, and N is a positive integer.
  • the communication device further includes a storage unit (sometimes also referred to as a storage module), and the processing unit is used to be coupled with the storage unit and execute the program or An instruction to enable the communication device to execute the function of the first terminal device or the second terminal device described in any one of the first aspect to the third aspect.
  • a storage unit sometimes also referred to as a storage module
  • a communication device may be the access network device described in any one of the above first to third aspects.
  • the communication device has the functions of the above-mentioned access network equipment.
  • the communication device is, for example, an access network device, or a functional module in the access network device, such as a baseband device or a chip system (or chip).
  • the communication device includes a baseband device and a radio frequency device.
  • the communication device includes a processing unit (sometimes also called a processing module) and a transceiver unit (sometimes also called a transceiver module).
  • a processing unit sometimes also called a processing module
  • transceiver unit sometimes also called a transceiver module
  • the processing unit is configured to determine N types of carrier configurations, each of the N types of carrier configurations includes a carrier for the first terminal device to send information to the second terminal device, and/or, Including a carrier for the second terminal device to send information to the first terminal device, N is a positive integer; the transceiver unit (or, the receiving unit) is used to send third configuration information to the first terminal device, The third configuration information is used to indicate the N types of carrier configurations.
  • the communication device further includes a storage unit (sometimes also referred to as a storage module), and the processing unit is used to be coupled with the storage unit and execute the program or An instruction to enable the communication device to perform the function of the access network device described in any one of the first aspect to the third aspect.
  • a storage unit sometimes also referred to as a storage module
  • a sixth aspect provides a communication system, including the communication device described in the fourth aspect and the communication device described in the fifth aspect.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store computer programs or instructions, and when executed, the first terminal device, the second terminal device, or the interface in the above-mentioned aspects The method performed by the network access device is implemented.
  • a computer program product containing instructions which enables the methods described in the above aspects to be implemented when it is run on a computer.
  • a chip system or chip including a processor and an interface, and the processor is configured to call and execute instructions from the interface, so that the chip system implements the methods in the above aspects.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application
  • FIG. 2 and FIG. 3 are flowcharts of two communication methods provided by the embodiments of the present application.
  • FIG. 4 is a schematic diagram of a device provided in an embodiment of the present application.
  • Fig. 5 is a schematic diagram of another device provided by the embodiment of the present application.
  • a terminal device is a device with a wireless transceiver function, which can be a fixed device, a mobile device, a handheld device (such as a mobile phone), a wearable device, a vehicle-mounted device, or a wireless device built into the above-mentioned devices (such as a communication module, a modem, or system-on-a-chip, etc.).
  • the terminal device is used to connect people, objects, machines, etc., and can be widely used in various scenarios, including but not limited to the following scenarios: cellular communication, device-to-device communication (device-to-device, D2D), car-to-everything (vehicle to everything, V2X), machine-to-machine/machine-type communications (M2M/MTC), internet of things (IoT), virtual reality (VR) , augmented reality (augmented reality, AR), industrial control (industrial control), driverless (self driving), telemedicine (remote medical), smart grid (smart grid), smart furniture, Terminal equipment for smart office, smart wear, smart transportation, smart city, drones, robots and other scenarios.
  • cellular communication device-to-device communication
  • D2D device-to-device, D2D
  • car-to-everything vehicle to everything
  • V2X machine-to-machine/machine-type communications
  • IoT internet of things
  • VR virtual reality
  • AR augmented reality
  • the terminal device may sometimes be called a UE, terminal, access station, UE station, remote station, wireless communication device, or user device, among others.
  • the terminal device is taken as an example for description.
  • the first UE mentioned below can be replaced by the first terminal device
  • the second UE mentioned below can be replaced by the second terminal device. .
  • the network devices in this embodiment of the present application may include, for example, access network devices and/or core network devices.
  • the access network device is a device with a wireless transceiver function, and is used for communicating with the terminal device.
  • the access network equipment includes but is not limited to a base station (base transceiver station (BTS), Node B, eNodeB/eNB, or gNodeB/gNB), a transmission reception point (TRP), a third generation 3rd generation partnership project (3GPP) subsequent evolution base station, wireless fidelity (wireless fidelity, Wi-Fi) system access node, wireless relay node, wireless backhaul node, etc.
  • BTS base transceiver station
  • TRP transmission reception point
  • 3GPP third generation 3rd generation partnership project
  • the base station may be: a macro base station, a micro base station, a pico base station, a small station, a relay station, and the like. Multiple base stations can support networks of the same access technology or networks of different access technologies.
  • a base station may contain one or more co-sited or non-co-sited transmission and reception points.
  • the access network device may 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.
  • the access network device may also be a server or the like.
  • a network device in a vehicle to everything (V2X) technology may be a road side unit (RSU).
  • V2X vehicle to everything
  • RSU road side unit
  • the base station can communicate with the terminal equipment, and can also communicate with the terminal equipment through the relay station.
  • a terminal device can communicate with multiple base stations in different access technologies.
  • the core network equipment is used to implement functions such as mobility management, data processing, session management, policy and charging.
  • the names of devices implementing core network functions in systems with different access technologies may be different, which is not limited in this embodiment of the present application.
  • the core network equipment includes: access and mobility management function (access and mobility management function, AMF), session management function (session management function, SMF), Policy control function (policy control function, PCF) or user plane function (user plane function, UPF), etc.
  • the communication device for realizing the function of the network device may be a network device, or a device capable of supporting the network device to realize the function, such as a chip system, and the device may be installed in the network device.
  • the technical solution provided by the embodiment of the present application the technical solution provided by the embodiment of the present application is described by taking the network device as an example for realizing the function of the network device.
  • 5G proximity based services-enabled (5G ProSe-enabled) UE is a UE that supports 5G ProSe requirements and related procedures.
  • 5G ProSe direct communication is communication between two or more adjacent 5G ProSe-enabled UEs.
  • the transmission of the user plane uses new radio (NR) technology, and the communication path between two ProSe-enabled UEs does not traverse any network nodes.
  • NR new radio
  • V2X communication (communication), using Uu interface and/or PC5 reference point (or, PC5 interface) to support communication of V2X service.
  • V2X services are realized through various types of V2X applications, such as vehicle-to-vehicle (V2V), vehicle-to-pedestrian (V2P), vehicle-to-infrastructure (V2I) ) or vehicle-to-network (V2N), etc.
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-pedestrian
  • V2I vehicle-to-infrastructure
  • V2N vehicle-to-network
  • the PC5 reference point (or, PC5 interface) is a reference point (or, interface) between UEs.
  • the Uu reference point (or Uu interface) is the connection between the UE and the radio access network (for example, next generation (next generation, NG)-radio access network (radio access network, RAN), or E-UTRAN, etc.) Reference point (or, interface).
  • the radio access network for example, next generation (next generation, NG)-radio access network (radio access network, RAN), or E-UTRAN, etc.
  • Reference point or, interface
  • NR SL communication is an access stratum (AS) function that realizes V2X communication and 5G ProSe direct communication between two or more adjacent UEs.
  • NR sidelink communication applies NR technology, but the communication path between UEs does not traverse any network nodes.
  • SL transmission is between a pair of source (source) and target (destination).
  • the source can be identified by the source layer 2 ID (source layer-2ID), and the destination can be identified by the destination layer 2 ID (destination layer-2ID).
  • the source layer-2ID is used to identify the data sender (sender) UE in the SL communication
  • the destination layer-2ID is used to identify the data target (target) UE or the data receiver UE in the SL communication.
  • the sender refers to the source of SL communication (or a media access control (media access control, MAC) protocol data unit (protocol data unit, PDU)
  • the receiver refers to SL communication (or a MAC PDU) the destination.
  • the UE described below may refer to a UE using a Layer-2 ID, and the UE uses the Layer-2 ID in SL communication.
  • SL communication includes a unicast communication mode.
  • a PC5-radio resource control (RRC) connection (connection) is a logical connection between a source and destination pair (the source and destination pair). The connection is considered to be established after the corresponding PC5 unicast link is established, and the PC5-RRC connection and the PC5 unicast link may correspond one-to-one.
  • RRC radio resource control
  • a UE can establish a PC5-RRC connection with one or more UEs, and one of the PC5-RRC connections is used for a pair of source Layer-2ID and destination Layer-2ID.
  • nouns for the number of nouns, unless otherwise specified, it means “singular noun or plural noun", that is, “one or more". “At least one” means one or more, and “plurality” means two or more. "And/or” describes the association relationship of associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character “/" generally indicates that the contextual objects are an "or” relationship. For example, A/B means: A or B. “At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • At least one item (piece) of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c Can be single or multiple.
  • the ordinal numerals such as “first” and “second” mentioned in this embodiment of the application are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority, or importance of multiple objects.
  • the first information and the second information may be the same information or different information, and this name does not indicate the content, amount of information, priority or importance of the two information. different.
  • the numbering of the steps in the various embodiments introduced in this application is only for distinguishing different steps, and is not used to limit the order of the steps. For example, S201 may occur before S202, or may occur after S202, or may occur simultaneously with S202.
  • the technical solutions provided in the embodiments of the present application can be applied to D2D scenarios, such as new radio (new radio, NR)-D2D scenarios, etc., or can be applied to vehicle to everything (V2X) scenarios, such as NR-V2X scenarios, etc. .
  • D2D scenarios such as new radio (new radio, NR)-D2D scenarios, etc.
  • V2X vehicle to everything
  • NR-V2X scenarios NR-V2X scenarios, etc.
  • it can be applied to the Internet of Vehicles, such as V2X, vehicle-to-vehicle (V2V), etc., or can be used in fields such as intelligent driving, assisted driving, or intelligent networked vehicles.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • Figure 1 includes UE1 and UE2.
  • UE1 can send data to UE2
  • UE2 is the sending end
  • UE2 is the receiving end
  • UE2 is the sending end
  • UE1 is the receiving end
  • Both UE1 and UE2 in FIG. 1 take a mobile phone as an example, and are not limited to this in practice.
  • the method provided by the embodiments of the present application will be described below with reference to the accompanying drawings.
  • the drawings corresponding to various embodiments of the present application all optional steps are indicated by dotted lines.
  • the various embodiments of the application The provided methods can all be applied to the scenario shown in FIG. 1.
  • the first UE involved in each embodiment of the present application may be UE1 in FIG. 1; the second UE involved in each embodiment of the present application, It may be UE2 in FIG. 1 .
  • Various embodiments of the present application are applicable to a single carrier scenario, that is, one carrier is configured for one UE.
  • various embodiments of the present application may also be applicable to a multi-carrier scenario, that is, multiple carriers may be configured for a UE, for example, the UE may support side link carrier aggregation, thereby achieving a higher data transmission rate.
  • the information transmitted between the first UE and the second UE may be information under the 3rd generation partnership project (3rd generation partnership project, 3GPP) protocol, such as side line information (or It may also be information under other communication protocols, such as wireless fidelity (wireless fidelity, WiFi) information or Bluetooth information.
  • 3rd generation partnership project, 3GPP 3rd generation partnership project
  • the carrier described in each embodiment of the present application may be a carrier used for communication between UEs, and the carrier corresponds to a communication protocol applicable to the first UE and the second UE.
  • the information transmitted between the first UE and the second UE is sidelink information, and the carrier may also be called a sidelink carrier or a sidechain carrier.
  • the transmission of sidelink information between the first UE and the second UE is mainly taken as an example.
  • FIG. 2 is a flow chart of the first communication method provided by the embodiment of the present application.
  • the first UE determines N types of carrier configurations, where N is a positive integer.
  • Each of the N carrier configurations includes a carrier for the first UE to send information to the second UE, and/or includes a carrier for the second UE to send information to the first UE.
  • the first carrier configuration may include M carriers
  • the M carriers may include carriers used for the first UE to send information to the second UE ( Or described as a carrier used for the second UE to receive information from the first UE), and/or, including a carrier used for the second UE to send information to the first UE (or described as, used for the first UE to receive information from the carrier of the information of the second UE).
  • M is a positive integer.
  • the N types of carrier configurations include other carrier configurations in addition to the first carrier configuration, for example, each of the N types of carrier configurations can be configured as a carrier for the first UE to send information to the second UE , and/or a carrier used for the second UE to send information to the first UE.
  • the carriers included in the different carrier configurations in the N carrier configurations may be different, and the carrier difference here may be reflected in one or more of the following: the number of carriers is different, the purpose of the carriers is different, or the specific carrier is different (or the frequency of the carrier different).
  • carrier configuration 1 for example, carrier configuration 1 is the first carrier configuration
  • carrier configuration 2 includes Q carriers
  • M is not equal to Q, which indicates that the two carrier configurations include different numbers of carriers.
  • carrier configuration 1 includes M carriers
  • carrier configuration 1 includes M carriers
  • carrier configuration 2 also includes M carriers
  • carrier 1 is included in the M carriers included in carrier configuration 1
  • carrier 1 is not included in the M carriers included in carrier configuration 2
  • the N types of carrier configurations may be determined by the first UE itself.
  • the first UE may determine N carrier configurations according to the carrier used by the first UE.
  • the N types of carrier configurations may also be determined by the first access network device, and the first access network device is the serving access network device of the first UE.
  • the first access network device may send third configuration information to the first UE, where the third configuration information may indicate N types of carrier configurations.
  • the first UE determines the N types of carrier configurations. place.
  • the first UE may or may not accept the carrier configuration indicated by the first access network device to the first UE.
  • the third configuration information indicates at least one carrier configuration. If the first UE accepts all carrier configurations, then all carrier configurations can be configured for the second UE.
  • at least one carrier configuration is N types of carrier configurations.
  • the first UE may not accept some or all of the carrier configurations in at least one carrier configuration, for example, the capabilities of the first UE cannot support working on the carriers included in the part or all of the carrier configurations. If the first UE does not accept the part or all of the carrier configurations, the first UE may send information indicating configuration failure to the first access network device. After receiving the information, the first access network device may re-indicate the new carrier configuration to the first UE until the first UE accepts it, or the first access network device may not re-indicate the new carrier configuration to the first UE configuration, but instructs the first UE to configure itself.
  • the first UE when the first UE is in the RRC inactive (inactive) state or the RRC idle (idle) state, the first UE can determine N types of carrier configurations by itself; or, when the first UE is in the RRC connected (connected) state, the first UE The N types of carrier configurations may be determined by itself, or the first access network device may determine the N types of carrier configurations.
  • the first UE sends the first configuration information to the second UE.
  • the second UE receives the first configuration information from the first UE.
  • the first configuration information may indicate N types of carrier configurations.
  • the first configuration information may be included in an RRC reconfiguration sidelink (RRC reconfiguration sidelink) message, or may also be included in other messages transmitted between the first UE and the second UE.
  • RRC reconfiguration sidelink RRC reconfiguration sidelink
  • carrier configuration and activation may be the same operation, that is, configuring a carrier for the second UE is equivalent to activating the carrier for the second UE, then the first Configuration information can also be regarded as activation information, which is used to activate N types of carrier configurations.
  • configuring a carrier is a different operation from activating a carrier.
  • the first UE also needs to activate the carrier for the second UE, so that the second UE can use the carrier.
  • the first configuration information may include information for configuring N types of carrier configurations (for example, N pieces of information to be introduced below), and further include information for activating N types of carrier configurations, so that the information used to configure N types of carrier configurations
  • the information is equivalent to configuring N types of carrier configurations for the second UE, and the information for activating N types of carrier configurations is equivalent to activating N types of carrier configurations for the second UE, or activating the carriers included in the N types of carrier configurations.
  • the first configuration information may include information for configuring N types of carrier configurations (for example, N pieces of information to be introduced below), but does not include information for activating N types of carrier configurations, and the first UE may additionally send information to the second The UE sends information for activating at least one of the N carrier configurations, for example, after the first UE receives an acknowledgment message from the second UE (the acknowledgment message will be introduced later), it can send the information to the second UE Sending information for activating the carrier configuration accepted by the second UE.
  • N types of carrier configurations for example, N pieces of information to be introduced below
  • the first UE may additionally send information to the second
  • the UE sends information for activating at least one of the N carrier configurations, for example, after the first UE receives an acknowledgment message from the second UE (the acknowledgment message will be introduced later), it can send the information to the second UE Sending information for activating the carrier configuration accepted by the second UE.
  • activating a carrier for the UE may be implemented as that the UE starts to use the carrier, for example, the UE starts to communicate with other UEs on the carrier, including monitoring/receiving on the carrier.
  • deactivating a carrier for the UE may be achieved by the UE stopping using the carrier, for example, the UE stops communicating on the carrier, or all communication activities of the UE do not use the carrier, or the UE is in No more listening/receiving etc. on this carrier.
  • the fact that the UE monitors/receives on a certain carrier may refer to monitoring/receiving the SCI on the carrier.
  • the SCI may be a first-level SCI, or a second-level SCI, or a first-level SCI and a second-level SCI.
  • activating a carrier for the UE may also be implemented as that the UE starts to use a certain transmission function on the carrier, and the transmission function may be all or part of the transmission function of the UE.
  • deactivating a carrier for the UE may be implemented as that the UE stops using the transmission function on the carrier, but if the transmission function is part of the transmission function of the UE, the UE may also use the transmission function on the carrier.
  • Other transmission functions of the UE Regarding these contents, the A more detailed introduction will be made in the next embodiment, and details will not be repeated here.
  • the first configuration information may include information of all carriers included in the N types of carrier configurations, thereby indicating the N types of carrier configurations.
  • the first configuration information includes N pieces of information, and the N pieces of information may indicate N types of carrier configurations, and one piece of information indicates one type of carrier configuration.
  • one of the N pieces of information is the first information, and the first information may indicate the first carrier configuration.
  • the first carrier configuration includes M carriers, and the first information may include information about the M carriers.
  • the information of a carrier may include frequency information of the carrier, then the first information may include frequency information of M carriers.
  • a carrier may include multiple resource blocks (resource blocks, RBs), and the frequency of the carrier may be represented by the frequency of one of the RBs included in the carrier, for example, by the absolute frequency of the RB.
  • the RB is, for example, the reference RB included in the carrier, for example, the reference RB is the RB located in the middle frequency domain among the RBs included in the carrier, or the RB with the lowest frequency among the RBs included in the carrier, or the RB of the carrier The RB with the highest frequency among the included RBs, etc.
  • the information of a carrier may also include bandwidth information of the carrier.
  • the information of a carrier includes frequency information of the carrier, and may optionally include bandwidth information of the carrier.
  • the first information may include frequency information of the M carriers, and optionally, bandwidth information of the M carriers.
  • the information of a carrier may not include the frequency information of the carrier, but include the index of the carrier, then the first information may include the indexes of the M carriers.
  • the carrier index has a smaller amount of information and occupies less resources, which is beneficial to save signaling overhead.
  • the corresponding relationship between the index of the carrier and the identifier of the carrier (for example, the frequency of the reference RB of the carrier can be regarded as the identifier of the carrier, or the serial number of a carrier in the frequency band can be regarded as the identifier of the carrier, etc.), can be predicted
  • the configuration is configured in the first UE and the second UE, and the pre-configured corresponding relationships in the first UE and the second UE may be completely the same, or may also be partially the same.
  • the corresponding relationship between the index of a carrier and the identifier of the carrier is regarded as a sub-relationship, and a corresponding relationship may include one or more sub-relationships.
  • the exact sameness here means that the sub-relationships included in the pre-configured correspondence in the first UE are completely the same as the sub-relationships included in the pre-configured correspondence in the first UE;
  • the sub-relations included in the pre-configured correspondence are partly the same as the sub-relations included in the pre-configured correspondence in the first UE.
  • the pre-configured correspondence in the first UE includes sub-relations 1 to 3
  • the internally preconfigured corresponding relationship includes sub-relationship 2 to sub-relationship 6.
  • the corresponding relationship between the index of the carrier and the identifier of the carrier may also be included in other information.
  • the first UE may receive fourth information from the first access network device, where the fourth information may include a correspondence between a carrier identifier and a carrier index, and the first UE may determine the carrier index according to the fourth information.
  • the fourth information may include identifiers of carriers used by UEs covered by the first access network device (may include carriers used for these UEs to receive information, and/or carriers used for these UEs to send information) and the IDs of these carriers. Correspondence between indexes.
  • the second UE may receive fifth information from the second access network device, where the fifth information may include a correspondence between carrier identifiers and carrier indexes, and the second UE may determine the carrier indexes according to the fifth information.
  • the fifth information may include identifiers of carriers used by UEs covered by the second access network device (may include carriers used for these UEs to receive information, and/or carriers used for these UEs to send information) and the IDs of these carriers. Correspondence between indexes.
  • the content included in the fourth information and the content included in the fifth information may be completely the same, or may be partly the same, for which reference may be made to the introduction above.
  • the first access network device is the serving access network device of the first UE
  • the second access network device is the serving access network device of the second UE
  • the first access network device and the second access network device may It is the same access network device, or may be different access network devices.
  • the information of a carrier may also include bandwidth information of the carrier.
  • the information of a carrier includes the index of the carrier, and optionally includes the bandwidth information of the carrier.
  • the first information may include indexes of M carriers, optionally , also includes bandwidth information of the M carriers.
  • the N carrier configurations indicated by the first UE may be used by the second UE to receive information from the first UE, and/or used by the second UE to send information to the first UE.
  • this embodiment of the present application may further include S203: the second UE sends capability information to the first UE, and accordingly, The first UE receives capability information from the second UE.
  • the capability information is, for example, included in a UE capability information sidelink (UE capability information sidelink) message, or included in other messages. For example, S203 occurs before S201.
  • the capability information is the capability information of the second UE, and the capability information may be the capability information sent by the second UE to the first UE for the first time, or it may be the capability information sent by the second UE to the first UE when the capability of the second UE changes.
  • the updated capability information sent For example, after establishing a PC5 unicast connection with the first UE, the second UE may send current capability information of the second UE to the first UE. Next, the second UE may also perform SL communication with other UEs except the first UE, such as PC5 unicast communication, PC5 multicast communication or PC5 broadcast communication, etc.
  • These communication processes may cause the second UE to occupy or release some frequency band, or change the capability of the second UE to support multiple carriers, which may cause the capability of the second UE to change. If the capability of the second UE changes, the second UE may send updated capability information to the first UE, so that the first UE can determine N types of carrier configurations according to the latest capability information of the second UE.
  • the first UE may use the capability information of the second UE as a reference factor when determining N types of carrier configurations.
  • the first UE may send the capability information to the first access network device for the first access network device to The capability information is used as a reference factor at the time of determining N types of carrier configurations.
  • the capability information includes, for example, the receiving capability information of the second UE, and/or includes the transmitting capability information of the second UE; or, the transmitting capability information of the second UE is the same as the receiving capability information, then the capability information includes the transmitting Capability information or receiving capability information is sufficient.
  • the capability information may include one or more of the following: information about frequency bands supported by the second UE, information about frequency band combinations supported by the second UE, or information about the ability of the second UE to support multiple carriers. Wherein, one frequency band combination may include at least two frequency bands.
  • the support capability information of the second UE for multiple carriers is taken as an example of the support capability information of the second UE for sidelink multiple carriers.
  • the second UE's support capability information for sidelink multi-carriers may include sidelink carrier aggregation bandwidth levels supported by the second UE, and/or include frequency separation levels for in-band non-continuous carrier aggregation supported by the second UE.
  • the sidelink carrier aggregation bandwidth level supported by the second UE may include the number of contiguous component carriers supported by the second UE participating in sidelink carrier aggregation, and/or the sidelink aggregation channel supported by the second UE Bandwidth (aggregated channel bandwidth).
  • the in-band discontinuous carrier aggregation frequency separation level supported by the second UE may indicate the maximum frequency separation supported by the second UE, that is, the maximum frequency separation between adjacent carriers among carriers participating in carrier aggregation.
  • the second UE's support capability information for sidelink multi-carriers is related to the frequency band information supported by the second UE, then the second UE's support capability information for sidelink multi-carriers may include Support capability information for sidelink multi-carriers in one or more frequency bands.
  • the second UEs respectively have support capabilities for sidelink multi-carriers, and the sidelink multi-carrier support capabilities corresponding to different frequency bands are the same or different.
  • the second UE supports frequency band 1 and frequency band 2.
  • frequency band 1 the number of continuous component carriers supported by the second UE is 2, the sidelink aggregation channel bandwidth supported by the second UE is A 1 , and the maximum frequency supported by the second UE is The interval is B 1 .
  • frequency band 2 the number of consecutive component carriers supported by the second UE is 3
  • the bandwidth of the sidelink aggregation channel supported by the second UE is A 2
  • the maximum frequency interval supported by the second UE is B 2 .
  • a 1 and A 2 may or may not be equal; B 1 and B 2 may or may not be equal.
  • the second UE's support capability information for sidelink multi-carriers is related to the frequency band combination information supported by the second UE, then the second UE's support capability information for sidelink multi-carriers may include one Or support capability information for sidelink multi-carriers under a combination of multiple frequency bands.
  • the second UEs respectively have support capabilities for sidelink multi-carriers, and the sidelink multi-carrier support capabilities corresponding to different frequency band combinations are the same or different.
  • the second UE supports frequency band combination 1 and frequency band combination 2, wherein frequency band combination 1 includes frequency band 1 and frequency band 2, and frequency band combination 2 includes frequency band 1 and frequency band 3.
  • frequency band combination 1 the number of consecutive component carriers supported by the second UE is 5, the bandwidth of the sidelink aggregation channel supported by the second UE is A 3 , and the maximum frequency interval supported by the second UE is B 3 .
  • the number of consecutive component carriers supported by the second UE is 3
  • the sidelink aggregation channel bandwidth supported by the second UE is A 4
  • the maximum frequency interval supported by the second UE is B 4 .
  • a 3 and A 4 may or may not be equal; B 3 and B 4 may or may not be equal.
  • the second UE's support capability information for sidelink multi-carriers may also include Information about the support capability of sidelink multi-carriers under the frequency bands included in one or more frequency band combinations will not be repeated here.
  • the second UE's support capability information for sidelink multi-carriers has nothing to do with the frequency band or frequency band combination supported by the second UE. If they are the same, then the capability information only needs to include the capability information of the second UE supporting the sidelink multi-carrier.
  • the second UE's support capability information for sidelink multi-carriers includes, the number of consecutive component carriers supported by the second UE is 4, the sidelink aggregation channel bandwidth supported by the second UE is A 5 , and the maximum frequency supported by the second UE is The interval is B 5 .
  • the second UE may actively send the capability information to the first UE, or the second UE may send the capability information to the first UE at the request of the first UE.
  • this embodiment of the present application further includes S204: the first UE sends capability query information to the second UE, and accordingly, the second UE receives capability query information from the first UE, and the capability query information may request the second UE to provide capability information.
  • the capability inquiry information is, for example, included in a UE capability inquiry sidelink (UE capability enquiry sidelink) message, or included in other messages. For example, S204 occurs before S203. After receiving the capability inquiry information, the second UE may send the capability information to the first UE.
  • the capability query information further includes one or more of the following information: bandwidth information (for example, referred to as first bandwidth information), carrier number information, or separation level information.
  • bandwidth information for example, referred to as first bandwidth information
  • carrier number information for example, referred to as carrier number information
  • separation level information for example, the bandwidth information is information A, Information on the number of carriers is information B, and separation level information is information C.
  • the first UE may determine one or more of the above information included in the capability inquiry information; or, if N types of carrier configurations are determined by the first access network device, the capability The query information may be sent by the first access network device to the first UE, and then sent by the first UE to the second UE, then one or more items of information above may be determined by the first access network device; or, if the first The access network device determines N types of carrier configurations, and the capability query information can also be sent by the first UE to the second UE, and the first UE can then send the capability information from the second UE to the first access network device, as above One or more pieces of information of may be determined by the first UE.
  • the first bandwidth information may instruct the second UE to provide a frequency band or frequency band combination capable of supporting the first bandwidth information.
  • the first bandwidth information may indicate the first bandwidth, which is equivalent to indicating to the second UE that each frequency band in the frequency bands indicated by the capability information sent by the second UE should be able to support the first bandwidth;
  • Each frequency band included in the frequency band combination indicated by the capability information sent should be able to support the first bandwidth; or, each frequency band combination in the frequency band combination indicated by the capability information sent by the second UE should be able to support the first bandwidth.
  • one frequency band supports the first bandwidth, it may be realized that the maximum bandwidth of the frequency band is greater than or equal to the first bandwidth.
  • a band combination supports the first bandwidth, It may be realized that the total maximum bandwidth of all frequency bands included in the frequency band combination is greater than or equal to the first bandwidth.
  • the first bandwidth information may be frequency information of the first bandwidth, or an index of the first bandwidth, or other information that can be used to determine the first bandwidth.
  • the information on the number of carriers may instruct the second UE to provide a frequency band or combination of frequency bands capable of supporting the information on the number of carriers.
  • the carrier number information indicates the first number, which is equivalent to indicating the second UE, and each frequency band in the frequency bands indicated by the capability information sent by the second UE should be able to support the first number; or, the second UE sends Each frequency band included in the frequency band combination indicated by the capability information of the second UE shall be able to support the first quantity; or, each frequency band combination in the frequency band combination indicated by the capability information sent by the second UE shall be able to support the first quantity.
  • one frequency band supports the first number
  • the number of consecutive component carriers supported by the second UE under the frequency band is less than or equal to the first number.
  • Supporting the first number by a frequency band combination may be implemented as that the total number of continuous component carriers supported by the second UE under all carriers included in the frequency band combination is less than or equal to the first number.
  • the separation level information may instruct the second UE to provide a frequency band or frequency band combination capable of supporting the separation level information.
  • the separation level information indicates the first frequency interval, which is equivalent to indicating the second UE, and each frequency band in the frequency bands indicated by the capability information sent by the second UE should be able to support the first frequency interval; or, the second UE
  • Each frequency band included in the frequency band combination indicated by the capability information sent should be able to support the first frequency interval; or, each frequency band combination in the frequency band combination indicated by the capability information sent by the second UE should be able to support the first frequency interval. frequency interval. Where one frequency band supports the first frequency interval, it may be realized that the maximum frequency interval supported by the second UE in the frequency band is smaller than or equal to the first frequency interval.
  • a frequency band combination supporting the first number may be realized in that the maximum frequency interval supported by the second UE in all frequency bands included in the frequency band combination is less than or equal to the first frequency interval.
  • a frequency band combination includes multiple frequency bands, and the second UE can support the maximum frequency interval in each frequency band, and the frequency interval with the largest or smallest value among these maximum frequency intervals can be considered as the second UE in the frequency band. The maximum frequency interval supported under the combination.
  • the second UE can be made to perform corresponding screening, so that the capability information sent by the second UE can meet the requirements of the first UE.
  • the second UE may send capability information to the first UE.
  • the second UE may not send capability information to the first UE, but may send auxiliary information to the first UE, then S203 may be replaced by: the second UE sends auxiliary information to the first UE, and correspondingly, the first UE receives Assistance information from the second UE.
  • the second UE may send the capability information and auxiliary information to the first UE, then S203 may be replaced by: the second UE sends the capability information and auxiliary information to the first UE, and correspondingly, the first UE receives the capability information from the second UE Information and Supporting Information.
  • S203 in FIG. 2 is that the second UE sends capability information and/or auxiliary information to the first UE.
  • the auxiliary information may also be used to assist the first UE (or the first access network device) in determining N types of carrier configurations.
  • the auxiliary information may also be called side chain multi-carrier auxiliary information and the like.
  • the auxiliary information it may be actively sent by the second UE to the first UE without a request from the first UE; or it may be requested by the first UE, for example, the first UE may request capability information and/or auxiliary information through S204 .
  • the auxiliary information may indicate K types of carrier configurations, where K is a positive integer.
  • the K types of carrier configurations are carrier configurations desired by the second UE, or desired by the second UE, or preferred by the second UE, or preferred by the second UE.
  • K carrier configurations are desired carrier configurations of the second UE as an example.
  • the K carrier configurations may include carriers used for the first UE to send information to the second UE, and/or include carriers used for the second UE to send information to the first UE.
  • one of the K carrier configurations may be referred to as a second carrier configuration
  • the second carrier configuration may include P carriers, and the P carriers are the carriers desired to be configured by the second UE, or the carriers desired by the second UE.
  • the configured carrier is either the carrier that the second UE tends to configure, or the carrier that the second UE considers to be preferentially configured.
  • the P carriers are the carriers expected to be configured by the second UE. These P carriers may include a carrier used for the first UE to send information to the second UE (or described as, a carrier used for the second UE to receive information from the first UE), and/or include a carrier used for the second UE A carrier for sending information to the first UE (or described as, a carrier for the first UE to receive information from the second UE).
  • P is a positive integer.
  • the K carrier configurations include other carrier configurations in addition to the second carrier configuration.
  • each carrier configuration in the K carrier configurations may include carriers of the second UE desired carrier configuration. These carriers can be used for The first UE sends information to the second UE, and/or the second UE sends information to the first UE.
  • Different carrier configurations among the K carrier configurations may include different carriers, for which reference may be made to the introduction of N carrier configurations in S201.
  • the first UE After the first UE receives the auxiliary information, it can use the auxiliary information as a reference factor when determining the N types of carrier configurations (or, if the first UE receives the auxiliary information and capability information from the second UE, it can determine the N types of carrier configurations During configuration, the capability information and/or the auxiliary information may be used as reference factors).
  • the first UE may send the auxiliary information to the first access network device for the first access network device to
  • the auxiliary information is used as a reference factor when determining the N types of carrier configurations (or, if the first access network device receives the auxiliary information and capability information from the first UE, when determining the N types of carrier configurations, the capability information and /or this auxiliary information as a reference factor).
  • the N types of carrier configurations are the same as the K types of carrier configurations, which means that the N types of carrier configurations are the same as the K types of carrier configurations; or, some of the N types of carrier configurations are the same as the K types of carrier configurations, and the rest The carrier configuration is different from the K carrier configurations.
  • the N1 carrier configurations in the N carrier configurations are the same as the N1 carrier configurations in the K carrier configurations, and the N carrier configurations also include N2 carrier configurations, which are different from the K carrier configurations. All carrier configurations in the carrier configurations are different; or, the N carrier configurations are different from the K carrier configurations, which means that any carrier configuration in the N carrier configurations is different from the K carrier configurations.
  • the carriers included in the N carrier configurations are a subset of the carriers included in the K carrier configurations, so that the carriers configured for the second UE are as far as possible the carriers expected by the second UE.
  • N carrier configurations include carrier 1 to carrier 4
  • K carrier configurations include carrier 1 to carrier 5.
  • the carriers included in the K carrier configurations may include the carrier being used by the second UE.
  • the K carrier configurations include a third carrier, and the third carrier is a carrier being used by the second UE.
  • the second UE is communicating with one or more other UEs except the first UE, and the communication manner includes, for example, one or more of PC5 unicast communication, PC5 multicast communication, or PC5 broadcast communication.
  • the second UE may use one or more carriers, and the second UE may include part or all of the one or more carriers in the K carrier configurations.
  • the carriers configured by the first UE for the second UE according to the assistance information include the carriers being used by the second UE, because the second UE is using these carriers, the second UE has already monitored/received on these carriers, if The first UE configures the second UE to continue to use these carriers, then the second UE does not need to monitor/receive on the new carrier, but continues to monitor/receive on the used carrier, which can save the work of the second UE consumption.
  • the second UE may monitor the congestion level of the carrier, for example, the second UE determines the busyness of the carrier through a channel busy ratio (channel busy ratio, CBR). For example, if the CBR of a certain carrier being used by the second UE is high, indicating that the carrier is relatively busy, the second UE may not add the carrier to the K carrier configurations; if the CBR of a certain carrier being used by the second UE is A lower CBR indicates that the carrier is relatively idle, and the second UE may add the carrier to one or more carrier configurations in the K carrier configurations. In this way, the power consumption of the second UE can be saved, and the congestion degree of the carrier can also be considered to reduce collisions.
  • CBR channel busy ratio
  • the auxiliary information indicates K types of carrier configurations.
  • an indication manner is that the auxiliary information includes information of all carriers included in the K types of carrier configurations.
  • the auxiliary information may include K pieces of information, and the K pieces of information may indicate K types of carriers configuration, one of which indicates a carrier configuration.
  • one of the K pieces of information is the second information, and the second information may indicate the second carrier configuration.
  • the second carrier configuration includes P carriers
  • the second information may include information on the P carriers.
  • information of a carrier may include frequency information of the carrier or an index of the carrier.
  • the carrier information may also include bandwidth information of the carrier.
  • content included in the carrier information refer to the introduction of S202.
  • the bandwidth information is, for example, the maximum bandwidth of the carrier.
  • the second information includes bandwidth information of the first carrier, and the bandwidth indicated by the bandwidth information may be called the second bandwidth.
  • the second bandwidth may be the maximum bandwidth of the first carrier, which can be understood as, if the first UE (or the first access network device) is to configure the first carrier for the second UE, that is, if the N carrier configurations Any one or more carrier configurations include the first carrier, then the bandwidth of the first carrier configured by the first UE (or the first access network device) may be less than or equal to the second bandwidth.
  • the second UE sends confirmation information to the first UE.
  • the first UE receives the confirmation information from the second UE. If the second UE accepts the first configuration information, the second UE may send confirmation information to the first UE, to instruct the second UE to accept the first configuration information, or to instruct the second UE to accept N kinds of carrier configurations.
  • the confirmation information may also be referred to as success information or acceptance information, and the confirmation information is used as an example in this document.
  • the first configuration information indicates a kind of carrier configuration (for example, the first carrier configuration)
  • the second UE may send confirmation information to the first UE .
  • the second UE completely accepts the first carrier configuration, which means that the second UE accepts all carriers configured by the first carrier configuration.
  • the second UE may determine whether to accept a carrier according to various factors. For example, the second UE may determine whether the second UE supports a carrier according to one or more factors in the capability of the second UE, the number of carriers supported by the second UE, or the degree of carrier congestion.
  • the first configuration information indicates multiple carrier configurations. Then, if the second UE fully accepts one carrier configuration among the N carrier configurations, the second UE may send confirmation information to the first UE. The second UE completely accepts a carrier configuration, which means that the second UE accepts all carriers configured by the carrier configuration. Optionally, if the second UE fully accepts multiple carrier configurations in the N carrier configurations, the second UE may select one carrier configuration from the multiple carrier configurations.
  • the confirmation information may indicate the carrier configuration accepted by the second UE, so that the subsequent communication process between the first UE and the second UE can be Use this carrier configuration.
  • the first UE may use the carrier configuration accepted by the second UE during communication with the second UE. After the second UE sends the confirmation information, it may also use the carrier configuration accepted by the second UE during communication with the first UE. Optionally, if the N types of carrier configurations are determined by the first access network device, the first UE may also send the confirmation information to the first access network device, so that the first access network device knows that the carrier configuration process is over .
  • the confirmation information is, for example, included in an RRC reconfiguration complete sidelink (RRC reconfiguration complete sidelink) message, or may also be included in other messages.
  • RRC reconfiguration complete sidelink RRC reconfiguration complete sidelink
  • the second UE sends rejection information to the first UE.
  • the first UE receives the rejection information from the second UE. If the second UE does not accept the first configuration information, the second UE may send rejection information to the first UE, to instruct the second UE not to accept the first configuration information, or to instruct the second UE not to accept N kinds of carrier configurations.
  • the rejection information may also be called failure information, etc., and the rejection information is used as an example in this document.
  • S205 and S206 are two optional solutions, and the second UE may determine to execute S205 or S206 according to acceptance of the first configuration information (or according to acceptance of N types of carrier configurations).
  • the first configuration information indicates a carrier configuration (for example, the first carrier configuration)
  • the second UE may send rejection information to the first UE.
  • the second UE does not accept the first carrier configuration at all, which means that the second UE does not accept all carriers configured in the first carrier configuration.
  • the first configuration information indicates multiple carrier configurations. Then, if the second UE does not accept the N types of carrier configurations at all, the second UE may send rejection information to the first UE. The second UE completely does not accept the N types of carrier configurations, which means that the second UE does not accept all the carriers configured for each carrier configuration in the N types of carrier configurations.
  • the first UE may no longer configure the second UE, or may reconfigure a corresponding carrier for the second UE, for example, perform S201 again. If the N carrier configurations are determined by the first access network device, the first UE may send the rejection information to the first access network device after receiving the rejection information. After receiving the rejection information, the first access network device may no longer configure the second UE, or may reconfigure a corresponding carrier for the second UE and send it to the first UE, for example, S201 may be performed again.
  • the second UE sends second configuration information to the first UE.
  • the first UE receives second configuration information from the second UE.
  • the second UE may send rejection information to the first UE, or may send second configuration information to the first UE. Or, even if the second UE accepts the first configuration information, the second UE may send the second configuration information to the first UE.
  • the second UE may also send a corresponding indication to the first UE, and the indication may be carried in the second configuration information, or sent together with the second configuration information. According to the indication, the first UE may determine that the second UE accepts the first configuration information or does not accept the first configuration information.
  • S205-S207 are three optional schemes, and the second UE may choose to execute one of these three schemes. Alternatively, S205 and S206 are two optional solutions, and S207 can be used as a further supplementary solution to either of these two solutions.
  • the second configuration information may indicate one or more carrier configurations, each of the one or more carrier configurations includes one or more carriers, and the one or more carriers include information for the second UE to send to the first The carrier on which the UE sends information, and/or the carrier used for the first UE to send information to the second UE.
  • the one or more carrier configurations indicated by the second configuration information are the carrier configurations expected (or wanted; or tended; or expected to be prioritized) by the second UE.
  • the first UE may configure a carrier for the second UE again, for example, re-perform S201.
  • the first UE may use the second configuration information as a reference factor for reconfiguration.
  • the carrier is configured by the first access network device for the second UE
  • the first UE may send the second configuration information to the first access network device, and the first access network device may configure the carrier for the second UE again , and resend the configured carrier to the first UE.
  • S201 may be re-executed.
  • the first access network device may use the second configuration information as a reference factor for reconfiguration.
  • the first UE or the access network device may again provide the second UE with Configure the carrier.
  • the first UE may temporarily not configure a carrier for the second UE.
  • the second configuration information may be used as a reference factor for the subsequent configuration. For example, if the second UE not only sends the second configuration information to the first UE, but also indicates to the first UE that the second UE accepts the first configuration information, the first UE or the access network device may temporarily not provide the configuration information for the second UE.
  • the carrier is configured, but the second configuration information may be stored for subsequent reference.
  • the second UE completely accepts the first configuration information or does not accept the first configuration information at all.
  • a carrier configuration for example, a first carrier configuration
  • the first configuration information indicates multiple carrier configurations. If, for each of the multiple carrier configurations, the second UE accepts some of the carriers configured for each carrier configuration, and for the remaining carriers configured for each carrier configuration, the second UE does not accept, In this case, it is considered that the second UE partially accepts the first configuration information. Or, if for each carrier configuration in at least one of the multiple carrier configurations, the second UE accepts part of the carriers configured for each carrier configuration, and for the rest of the carrier configurations configured for each carrier configuration Carrier, the second UE does not accept it. In addition, the second UE does not accept the rest of the carrier configurations except at least one carrier configuration among the multiple carrier configurations. This situation is also regarded as the second UE partially accepting the first configuration information. .
  • one processing method is that the second UE performs S206, that is, because the second UE cannot fully accept the first configuration information, the second UE may process it in a rejecting manner. Among the carrier configurations indicated by the configuration information, the originally receivable carrier configurations are also rejected.
  • the confirmation information at this time may indicate the carrier configuration accepted by the second UE.
  • the second UE may select one of the carrier configurations as the carrier configuration for acknowledging acceptance.
  • the second UE accepts part of the carriers included in the first carrier configuration, and the confirmation information may indicate this part of carriers; another example, N>1, the second UE accepts each carrier configuration in multiple carrier configurations part of the carriers included, the second UE can select a carrier configuration, and the confirmation information can indicate the carrier configuration and the carriers accepted by the second UE in the carrier configuration; for another example, N>1, the first The second UE accepts the partial carriers included in each carrier configuration in at least one carrier configuration, then, if the number of at least one carrier configuration is 1, the confirmation information may indicate the carrier configuration, and indicate that the second UE is in the carrier configuration.
  • the second UE may select a carrier configuration, the confirmation information may indicate the carrier configuration, and indicate that the second UE is on the carrier Carriers accepted in the configuration.
  • the first UE can determine the carrier accepted by the second UE, so that the first UE and the second UE can use the carrier accepted by the second UE to communicate, and there is no need to configure a carrier for the second UE, and the carrier can be improved. configuration efficiency.
  • the second UE may send desired second configuration information to the first UE, and the first UE or the first access network device may immediately reconfigure the carrier for the second UE, or may not reconfigure the carrier for the second UE temporarily. carrier. Then, if the first UE or the first access network device does not reconfigure the carrier for the second UE, the first UE and the second UE can use the configuration accepted by the second UE to communicate.
  • the first UE may send the first configuration information to the second UE, and the carrier configuration indicated by the first configuration information may indicate the carrier used for the first UE to send information to the second UE, and/or indicate the carrier used for The carrier on which the second UE sends information to the first UE. Then, according to the first configuration information, the second UE can determine on which carrier(s) the second UE should receive information from the first UE, and/or determine which carrier(s) the second UE should send to the first UE. information. Equivalently, through the first configuration information, both the sending and receiving parties can specify the carrier used by the two parties for communication.
  • the sending end can send information on all or part of the carriers accepted by the receiving end, and the receiving end can listen on all accepted carriers. /Receive, so that the information sent by the sending end can be correctly received by the receiving end, which improves the receiving success rate of the receiving end.
  • the second UE may reject the first configuration information, and the first UE may reconfigure the second UE, and if the second UE continues to reject, the first UE may continue to configure; or, If the second UE does not accept the first configuration information, the second UE can indicate to the first UE the carrier configuration expected by the second UE, and the first UE can reconfigure the carrier for the second UE accordingly.
  • the second UE continues to refuse, Then the first UE can continue to configure; or, even if the second UE accepts the first configuration information, the second UE can also indicate to the first UE that the second UE The desired carrier configuration, based on which the first UE may reconfigure the carrier for the second UE, or may be used as a reference for subsequent configuration of the carrier for the second UE.
  • the above is equivalent to the negotiation process between the first UE and the second UE, and is more conducive to determining a carrier acceptable to both the first UE and the second UE.
  • the amount of data transmitted between the first UE and the second UE may not be balanced. For example, a large amount of data may be transmitted in certain time periods, while a small amount of data may be transmitted in certain time periods.
  • the embodiment of the present application considers that if the second UE always monitors/receives on all the carriers configured for the second UE, the power consumption of the second UE is relatively high. In view of this, the embodiment of the present application provides a second communication method, through which the power consumption of the second UE can be reduced. Please refer to FIG. 3 , which is a flowchart of the method.
  • the first UE sends first indication information to the second UE.
  • the second UE receives the first indication information from the first UE.
  • the first indication information may indicate to activate (or use; or apply) the second carrier, or indicate to deactivate (or no longer use) the third carrier.
  • the first UE is a data sending end
  • the second UE is a data receiving end
  • the second UE can receive data from the first UE.
  • the second carrier is a carrier that has not been activated before receiving the first indication information
  • the third carrier is a carrier that has been activated before receiving the first indication information.
  • the first UE and the second UE communicate using the first carrier configuration introduced in the embodiment shown in FIG.
  • the carrier is, for example, one or more carriers among the M carriers, and the second carrier is different from the third carrier.
  • M carriers refer to the embodiment shown in FIG. 2 .
  • the first indication information indicates to activate the second carrier, for example, may include frequency information of the second carrier, or include an index of the second carrier.
  • the first indication information indicates to deactivate the third carrier, for example, may include frequency information of the third carrier, or include an index of the third carrier.
  • the first indication information may also carry a corresponding indication, for example, if the first indication information indicates activation of the second carrier, the first indication information may include frequency information or an index of the second carrier, and An activation indication is included; if the first indication information indicates deactivation of the third carrier, the first indication information may include frequency information or an index of the third carrier, and the deactivation indication.
  • the first indication information may not additionally carry the activation indication or the deactivation indication, but indicate the activation or deactivation in an implicit manner.
  • An implicit manner is, for example, indicating activation or deactivation through first indication information in different formats; another implicit manner is, for example, indicating activation or deactivation through different scrambling manners of the first indication information.
  • the embodiment of the present application proposes that the carrier used for the first UE to send data to the second UE may change dynamically.
  • the first UE may send the data to the second UE.
  • the first instruction message For example, if the first UE determines that the carrier used for the first UE to send data to the second UE changes, the first UE may send the first indication information to the second UE. Alternatively, if the first UE configures a carrier for the second UE but has not yet activated the configured carrier, the first UE may also send the first indication information to the second UE, and at this time the first indication information may indicate activation of the second carrier . There may be multiple ways for the first UE to determine the carrier used for sending data from the first UE to the second UE, which are described below with examples.
  • the first way is determined according to an instruction from the first access network device.
  • the first access network device is the first UE Service access network equipment. For example, if the first UE is in the RRC connection state, or when the first UE sends information in a resource scheduling mode of an access network device, the first method may be used.
  • the first access network device may send second indication information to the first UE, and the second indication information may indicate activation of the second carrier or deactivation third carrier.
  • the first access network device may send the second indication information to the first UE; and if the carrier determined this time is the same as the carrier determined last time, the first access network device may not send the second indication to the first UE information.
  • the first UE may send the first indication information to the second UE.
  • the second indication information indicates activation of the second carrier
  • the first indication information indicates activation of the second carrier
  • the second indication information indicates deactivation of the third carrier
  • the first indication information indicates deactivation of the third carrier.
  • the first UE may send the second parameter to the first access network device, and the second parameter may be used to assist the first access network device in determining whether the carrier changes.
  • the second parameter includes, for example, one or more of the following: service quality (quality of service, QoS) information between the first UE and the second UE, CBR of some or all carriers in the carriers accepted by the second UE information, or information about the amount of data buffered by the first UE.
  • the carriers accepted by the second UE include, for example, all or part of the carriers in the first carrier configuration.
  • the QoS information of the service between the first UE and the second UE may include one or more of the following: PC5 interface 5G QoS identifier (PC5 5G QoS identifier, PQI), guaranteed flow bit rate (guaranteed flow bit rate, GFBR), Maximum flow bit rate (maximum flow bit rate, MFBR), PC5 link aggregate maximum bit rate (PC5link aggregate maximum bit rate, PC5Link-AMBR), or distance (range).
  • PC5 interface 5G QoS identifier PC5 5G QoS identifier, PQI
  • guaranteed flow bit rate guaranteed flow bit rate
  • GFBR Guarantee flow bit rate
  • MFBR Maximum flow bit rate
  • PC5 link aggregate maximum bit rate PC5link aggregate maximum bit rate
  • PC5Link-AMBR PC5 Link aggregate maximum bit rate
  • the value of the distance may indicate the applicable distance of the PC5QoS parameter in the PC5 communication between the first UE and the second UE, that is, when the data receiving end (for example, the second UE) and the data sending end (for example, the first UE) ) exceeds the distance (range) indicated by the SL QoS profile, PC5 communication is best-effort, or in other words, PC5 communication quality cannot be guaranteed.
  • the PQI may indicate one or more of the following PC5QoS parameters: resource type (resource type), priority level (priority level), packet delay budget (packet delay budget, PDB), packet error rate (packet error rate , PER), sliding window (averaging window), or maximum data burst volume (MDBV).
  • the resource type can be guaranteed bit rate (guaranteed bit rate, GBR), delay critical GBR (delay critical GBR) or non-GBR (non-GBR)).
  • the data volume information cached by the first UE may be information on the data volume stored in the buffer zone of the first UE, such as a sidelink buffer status report (buffer status report, BSR) of the first UE, and the sidelink BSR may include the first UE buffer size information.
  • the data buffered by the first UE includes, for example, data to be sent to the second UE.
  • the data volume information cached by the first UE indicates that the first UE caches a large amount of data and may require more carrier transmission, then the first access network device may instruct to activate the second carrier to meet the data transmission requirements and reduce Small data transmission delay.
  • the first access network device may determine to deactivate the third carrier, so that the third carrier The second UE does not need to continue to monitor/receive on the third carrier, so as to reduce the power consumption of the second UE.
  • the first access network device may determine whether to activate or deactivate the corresponding carrier between the first UE and the second UE according to the second parameter, or the first access network device may refer to other factors in addition to the second parameter , for the first access
  • the specific implementation manner of the network device is not limited.
  • the first UE determines by itself. For example, if the first UE is in the RRC idle state or the RRC inactive state, or the first UE sends information in a mode in which the UE independently selects resources, the second method may be used.
  • the first UE may determine according to the first parameter whether to activate or deactivate the carrier used for the first UE to send data to the second UE.
  • the first parameter includes, for example, one or more of the following: QoS information of the service between the first UE and the second UE, CBR information of some or all of the carriers accepted by the second UE, or the cached information of the first UE data volume information.
  • QoS information of the service between the first UE and the second UE CBR information of some or all of the carriers accepted by the second UE, or the cached information of the first UE data volume information.
  • the first parameter and the second parameter may be the same parameter, or may be completely or partially different.
  • the first UE determines by itself. Different from the second manner, in the third manner, the first UE may be determined according to the first condition. Regardless of whether the first UE is in the RRC connected state, the RRC idle state or the RRC inactive state, and whether the first UE sends information in the mode of UE autonomously selecting resources or in the mode of resource scheduling by access network equipment, the first UE will A third manner may be used to determine whether to activate or deactivate the carrier used for the first UE to send data to the second UE.
  • the first condition may come from the first access network device.
  • the first access network device configures the first condition to the first UE through a unicast message, or the first condition may be included in a system message, and the first UE may obtain the first condition by receiving the system message from the first access network device. information.
  • the first condition may be configured by the first access network device.
  • the first condition may be preconfigured in the first UE.
  • the first condition may also come from the second UE, and the second UE may configure the first condition to the first UE.
  • the first condition may also be determined by the first UE itself.
  • the first condition is a data volume condition.
  • the first UE may determine whether to activate or deactivate a carrier for the first UE to send data to the second UE according to the amount of data to be transmitted by the first UE.
  • a data volume condition includes a correspondence between a first threshold and the number of carriers, and the first threshold may also be referred to as a data volume threshold. If the amount of data to be transmitted by the first UE is less than a certain first threshold, the number of carriers that the first UE can use (or activate) should be less than or equal to the number of carriers corresponding to the first threshold.
  • the corresponding relationship may include at least one first threshold and at least one number of carriers, and the first threshold and the number of carriers may be in one-to-one correspondence. It can be understood that the corresponding relationship includes at least one sub-relationship, and one of the sub-relationships is a corresponding relationship between a first threshold and a number of carriers.
  • One of the sub-relationships is, for example, that the number of carriers corresponding to the first threshold 1 is 3. Then, if the amount of data to be transmitted by the first UE is less than the first threshold 1, the number of carriers that the first UE can use should be less than or equal to 3.
  • the first UE does not need to perform an activation or deactivation operation, that is, there is no need to perform S301; or, if the number of carriers currently activated by the first UE is less than 3, the first UE S301 may not be performed, that is, the activation or deactivation operation is not performed, or the first UE may also perform S301, for example, the first indication information indicates activation of the second carrier; or, if the number of carriers currently activated by the first UE is greater than 3 , the first UE may perform S301, for example, the first indication information indicates to deactivate the third carrier.
  • This correspondence can be applied to all CBRs, or different CBRs can have different correspondences.
  • the CBR range can be divided, and different corresponding relationships can be configured for different CBR ranges, so that the determined number of carriers is more in line with the current carrier usage.
  • another data volume condition includes, if the data volume to be transmitted by the first UE is greater than or equal to the first threshold, the first UE activates the second carrier; or, if the data volume to be transmitted by the first UE is less than the second threshold threshold, the first UE deactivates the third carrier.
  • the second carrier may be a predetermined carrier, or a carrier associated with the first threshold, Or it is a carrier selected by the first UE itself.
  • the third carrier may be a predetermined carrier, or a carrier associated with the second threshold, or a carrier selected by the first UE.
  • the second threshold may be less than or equal to the first threshold. This condition is relatively simple and easy to implement.
  • the first UE may also send information to the first access network device, where the information may indicate that the corresponding carrier has been activated or deactivated.
  • the second UE starts or restarts a timer.
  • the first indication information indicates to deactivate the third carrier, but the second UE does not receive the first indication information, then the second UE will continue to monitor/receive on the third carrier, resulting in waste of power of the second UE.
  • the second UE will always be on Monitoring/receiving on the carrier also causes waste of power of the second UE.
  • the embodiment of the present application proposes that the second UE may maintain a timer for the carrier, so as to control the activation or deactivation of the carrier (or transmission function) through the timer.
  • the second UE maintains the timer in different manners, and an example is introduced below.
  • the second UE can maintain a timer for different carriers, for example called the first timer, the number of the first timer is the same as the carrier configured (or accepted by the second UE) the same amount.
  • the timing duration of the first timer may be configured by the first UE, or configured by the first access network device, or may also be pre-configured in the second UE.
  • the second UE may start or restart a first timer corresponding to a carrier under one or more of the following conditions: when the carrier is activated, when receiving information from the first UE on the carrier, Or, when sending information to the first UE on the carrier.
  • the first indication information indicates activation of the second carrier, and the second UE may start or restart the first timer corresponding to the second carrier after receiving the first indication information.
  • the first indication information is carried in a physical sidelink shared channel (physical sidelink share channel, PSSCH), then the second UE may start or restart the first timer within the first time unit after the end of the PSSCH.
  • the time unit is, for example, a subframe (subframe), a time slot (slot), an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol (symbol), or a millisecond.
  • the second UE can start or restart the first timer corresponding to the carrier.
  • the second UE may start at the first time unit after receiving information from the first UE (the information includes, for example, one or more items of information such as SCI, PSSCH, SCI and PSSCH, or MAC PDU) Or restart the corresponding first timer.
  • the SCI used to trigger the second UE to start or restart the first timer corresponding to the carrier may satisfy: the source layer-1ID contained in the SCI is the lower 8 bits of the layer-2ID of the first UE (8 is the least effective bit (least significant bit, LSB)), and the destination layer-1ID contained in the SCI is the lower 8 bits (8LSB) of the layer-2ID of the second UE.
  • the source layer-1ID contained in the SCI is the lower 8 bits of the layer-2ID of the first UE (8 is the least effective bit (least significant bit, LSB)
  • LSB least effective bit
  • the second UE may start or restart the first timer corresponding to the carrier. For example, at the first time unit after the second UE sends information to the first UE (the information includes, for example, one or more items of information such as SCI, PSSCH, SCI and PSSCH, or MAC PDU), start or The corresponding first timer is restarted.
  • the second UE starts the first timer corresponding to the second carrier after receiving the first indication information for indicating activation of the second carrier.
  • the second UE receives the PSSCH from the first UE on the second carrier or sends a MAC PDU to the first UE on the second carrier, then the second UE can restart the first UE. timer.
  • the second UE may deactivate the carrier corresponding to the first timer. If the second UE deactivates a certain carrier, the second UE no longer monitors/receives the carrier, or in other words, no longer monitors or receives information on the carrier. In this way, even if the second UE does not receive an instruction to deactivate the carrier from the first UE, or the first UE does not instruct the second UE to deactivate the carrier, the second UE can also deactivate the carrier by itself through the first timer.
  • the corresponding carrier is activated to reduce the power consumption of the second UE due to monitoring/receiving.
  • the second UE may no longer monitor/receive information from the first UE on the carrier, and no longer send information to the first UE on the carrier, that is , the second UE no longer communicates with the first UE on the carrier.
  • the second UE can continue to use the carrier to communicate with other UEs, for example, the second UE can continue to send information to other UEs on the carrier, and/or monitor/receive information from other UEs on the carrier, which can improve carrier utilization.
  • the "deactivation" of a certain carrier by a certain UE mentioned in the first method may mean that the UE does not communicate with any UE on the carrier, that is, the UE no longer uses the carrier; correspondingly, the UE "Activating" a certain carrier may mean that the UE starts to communicate with any UE on the carrier, that is, the UE starts to use the carrier. Then the first indication information in S301 may instruct the UE to "deactivate” the third carrier or instruct the UE to "activate” the second carrier.
  • deactivating" a certain carrier by the UE may also mean that the UE no longer communicates with a certain UE on the carrier, but it does not limit whether the UE communicates with other UEs on the carrier; correspondingly, the UE "activates" a certain carrier.
  • a carrier may mean that the UE starts to communicate with a certain UE on the carrier, and there is no restriction on the communication between the UE and other UEs on the carrier.
  • the first indication information instructs the UE to "deactivate” the third carrier, it may specifically instruct the UE to deactivate a certain transmission function of the second UE on the third carrier, and if the first indication information indicates the UE to "activate”
  • the second carrier may specifically instruct the UE to activate the transmission function of the second UE on the carrier.
  • the transmission function includes, for example, a function of the second UE sending information to the first UE, and a function of the second UE receiving information from the first UE.
  • the UE may disable the first timer corresponding to the third carrier in addition to deactivating the transmission function of the second UE on the third carrier.
  • the second UE can maintain two timers for different carriers, for example, the third timer and the fourth timer, and the number of the third timer is the same as that configured by the second UE (or, the first The number of carriers accepted by the second UE is the same, and the number of the fourth timer is also the same as the number of carriers configured (or accepted by the second UE).
  • the timing duration of the third timer may be configured by the first UE, or configured by the second UE, or configured by the first access network device, or may also be pre-configured in the second UE.
  • the timing duration of the fourth timer may be configured by the first UE, or configured by the second UE, or configured by the first access network device, or may also be pre-configured in the second UE.
  • the timing duration of the third timer and the timing duration of the fourth timer may or may not be equal.
  • the second UE may maintain the third timer and the fourth timer at the same time, or may only maintain any one of the two timers. In this embodiment of the present application, the second UE maintains the third timer and the fourth timer at the same time as an example.
  • the third timer corresponding to a carrier is used to monitor the first transmission function of the second UE on the carrier, and the first transmission function includes, for example, sending information from the second UE to the first UE.
  • the first transmission function may include a function of the second UE sending information to the first UE.
  • the second UE when the first transmission function of the second UE on a carrier is activated, and/or when the second UE performs the first transmission function with the first UE on the carrier, the second UE may start or Restart the third timer corresponding to the carrier.
  • the first instruction information in S301 indicates to activate the second carrier, it may specifically indicate to activate the first transmission function and/or the second transmission function of the second UE on the second carrier; or, in S301 If the first instruction information indicates to deactivate the third carrier, it may specifically indicate to deactivate the first transmission function and/or the second transmission function of the second UE on the third carrier.
  • the first indication information indicates to activate the first transmission function of the second UE on the second carrier, and the second UE may start or restart the third timer corresponding to the second carrier after receiving the first indication information. For example, if the first indication information is carried in the PSSCH, then the second UE may start or restart the third timer within the first time unit after the end of the PSSCH. And if the first indication information indicates to activate the second transmission function of the second UE on the second carrier, and does not indicate to activate the first transmission function of the second UE on the second carrier, the third timer corresponding to the second carrier stay the same.
  • the second UE may start or restart a third timer corresponding to the carrier.
  • the first transmission function is for the second UE to send information to the first UE, so if the second UE sends one of the information such as SCI, PSSCH, SCI and PSSCH, or MAC PDU to the first UE on a certain carrier item or items, the second UE may start or restart the third timer corresponding to the carrier.
  • the second UE may start or end the first time unit after sending information to the first UE (the information includes, for example, one or more items of information such as SCI, PSSCH, SCI and PSSCH, or MAC PDU) to the first UE.
  • the corresponding third timer is restarted.
  • the second UE starts a third timer corresponding to the second carrier after receiving the first indication information for indicating activation of the second carrier.
  • the second UE performs the first transmission function with the first UE on the second carrier, then the second UE may restart the third timer.
  • the second UE may deactivate the second UE's first timer on the carrier corresponding to the third timer. transfer function. Or, if the first indication information in S301 indicates to deactivate the first transmission function of the second UE on the third carrier, the second UE may also deactivate the first transmission function of the second UE on the third carrier, and , the second UE may also disable the third timer corresponding to the third carrier.
  • the deactivation of the first transmission function of the second UE on a certain carrier by the second UE may be implemented in that the second UE no longer performs the first transmission function on the carrier, but for other transmissions of the second UE on the carrier
  • the function is not limited, for example, the second UE may also perform a second transmission function on the carrier (if the fourth timer does not expire), and/or perform a transmission function with other UEs on the carrier, etc.
  • the second UE can also deactivate the carrier by itself through the third timer.
  • the transmission function on the corresponding carrier is activated to reduce the power consumption of the second UE.
  • the utilization rate of the carrier can be improved.
  • a fourth timer corresponding to a carrier is used to monitor a second transmission function of the second UE on the carrier, where the second transmission function includes, for example, that the second UE receives information from the first UE.
  • the second transmission function may include a function for the second UE to receive information from the first UE.
  • the second UE when the second transmission function of the second UE on a carrier is activated, and/or when the second UE performs the second transmission function with the first UE on the carrier, the second UE may start or Restart the fourth timer corresponding to the carrier.
  • the first indication information indicates to activate the second transmission function of the second UE on the second carrier, and the second UE may start or restart a fourth timer corresponding to the second carrier after receiving the first indication information. For example, if the first indication information is carried in the PSSCH, then the second UE may start or restart the fourth timer within the first time unit after the end of the PSSCH. And if the first indication information indicates to activate the first transmission function of the second UE on the second carrier, and does not indicate to activate the second transmission function of the second UE on the second carrier, then the fourth timer corresponding to the second carrier stay the same.
  • the second UE may start or restart a fourth timer corresponding to the carrier.
  • the first transmission function is that the second UE receives information from the first UE, then if the second UE receives one of the information such as SCI, PSSCH, SCI and PSSCH, or MAC PDU from the first UE on a certain carrier item or items, the second UE may start or restart the fourth timer corresponding to the carrier.
  • the second UE may start or end the first time unit after receiving information from the first UE (the information includes, for example, one or more items of information such as SCI, PSSCH, SCI and PSSCH, or MAC PDU). The corresponding fourth timer is restarted.
  • the second UE may deactivate the second UE on the carrier corresponding to the third timer. transfer function. Or, if the first indication information in S301 indicates to deactivate the second transmission function of the second UE on the third carrier, the second UE may also deactivate the second transmission function of the second UE on the third carrier, and , the second UE may also disable the fourth timer corresponding to the third carrier.
  • the deactivation of the second transmission function of the second UE on a certain carrier by the second UE may be realized in that the second UE no longer performs the second transmission function on the carrier, but for other transmissions of the second UE on the carrier
  • the function is not limited, for example, the second UE may also perform the first transmission function on the carrier (if the third timer has not expired), and/or perform the transmission function with other UEs on the carrier, etc.
  • the second UE can also deactivate the carrier by itself through the fourth timer.
  • the transmission function on the corresponding carrier is activated to reduce the power consumption of the second UE.
  • the utilization rate of the carrier can be improved.
  • the third timer and the fourth timer corresponding to a carrier can monitor different transmission functions respectively, and can realize finer-grained control over the transmission function of the second UE, for example, a kind of transmission function of the second UE When the transmission function is deactivated, another transmission function and other transmission functions may still be available, thereby improving the transmission efficiency of the second UE.
  • the first UE starts or restarts a timer.
  • the carrier between the first UE and the second UE is used by both the first UE and the second UE, if only the second UE unilaterally deactivates a certain carrier according to the timer, or deactivates a certain carrier on a certain carrier Part of the transmission function of the carrier, but the first UE does not know about it, the first UE may also communicate with the second UE through the carrier, which may lead to information loss. Therefore, in order to make the information at both ends equal, the first UE may also maintain a corresponding timer for the carrier, so as to control the activation or deactivation of the carrier (or transmission function) through the timer.
  • the manner in which the first UE maintains the timer corresponds to the manner in which the second UE maintains the timer, and an example is introduced below.
  • the third way This is actually the first way for the first UE to maintain the timer, but to avoid confusion with the first way in S302, the way for the first UE is called the third way.
  • the first UE can maintain a timer for different carriers, and the number of timers maintained by the first UE for the carrier is the same as the carrier configured by the first UE for the second UE (or, The number of accepted carriers) is the same.
  • the timing duration of the timer maintained by the first UE may be configured by the first UE, or configured by the first access network device, or may also be pre-configured in the first UE.
  • the timer maintained by the first UE may also be called a first timer, or to distinguish it from the timer maintained by the second UE, the timer maintained by the first UE may be called a second timer.
  • the first UE may start or restart a second timer corresponding to a carrier under one or more of the following conditions: when the carrier is activated, when receiving information from the second UE on the carrier, Or, when sending information to the second UE on the carrier.
  • the first indication information indicates to activate the second carrier, and the first UE may start or restart the second timer corresponding to the second carrier after sending the first indication information.
  • the first indication information is carried in the PSSCH, then the first UE may start or restart the second timer corresponding to the second carrier within the first time unit after the end of the PSSCH.
  • the first UE receives the second indication information from the first access network device, and the second indication information indicates activation of the second carrier, then the first UE may also start or restart the second carrier after receiving the second indication information.
  • the second timer corresponding to the two carriers For example, the second indication information is carried in the physical downlink shared channel (physical downlink shared channel, PDCCH), then the first UE can start or restart the second timing corresponding to the second carrier in the first time unit after the end of the PDSCH device.
  • PDCCH physical downlink shared channel
  • the first UE may start or restart the second timer corresponding to the carrier. For example, if the first UE sends one or more items of SCI, PSSCH, SCI and PSSCH, or MAC PDU to the second UE on a certain carrier, the first UE can start or restart the second UE corresponding to the carrier. timer. For example, in the first time unit after sending information to the first UE (the information is, for example, one or more items of information such as SCI, PSSCH, SCI and PSSCH, or MAC PDU), start or The corresponding second timer is restarted.
  • the first UE can start or restart the first UE corresponding to the carrier.
  • Two timers For example, the first UE may start or end the first time unit after receiving information from the second UE (the information includes, for example, one or more items of information such as SCI, PSSCH, SCI and PSSCH, or MAC PDU). The corresponding second timer is restarted.
  • the first UE starts the second timer corresponding to the second carrier after receiving the second indication information for indicating activation of the second carrier, or after sending the first indication information for indicating activation of the second carrier.
  • the first UE sends SCI to the second UE on the second carrier or receives PSSCH from the second UE on the second carrier, then the first UE can restart the second timer .
  • the first UE may deactivate the carrier corresponding to the second timer. If the first UE deactivates a certain carrier, the first UE will no longer send information on the carrier to the second UE, for example, no longer send SCI, PSSCH, SCI and PSSCH, or MAC to the second UE on the carrier PDUs, etc. In this way, the second UE and the first UE can maintain carrier activation and deactivation information synchronously, so that the first UE and the second UE use the same carrier, reduce information loss, and save power consumption of the second UE.
  • the first UE may no longer monitor/receive information from the second UE on the carrier, and no longer send information to the second UE on the carrier, that is , the first UE no longer communicates with the second UE on the carrier. But the first UE can still continue Using the carrier to communicate with other UEs, for example, the first UE can continue to send information to other UEs on the carrier, and/or monitor/receive information from other UEs on the carrier, which can improve the utilization of the carrier. No matter which of the above methods is adopted, since both the first UE and the second UE maintain the timer, the amount of indication information for deactivating the carrier sent by the first UE to the second UE can be reduced, thereby saving signaling overhead.
  • the fourth way This is actually the first way for the first UE to maintain the timer. In order to avoid confusion with the second way in S302, the way for the first UE is called the fourth way.
  • the first UE can maintain two timers for different carriers, for example, the fifth timer and the sixth timer, and the number of the fifth timer is the same as that configured by the second UE (or, the second timer).
  • the number of carriers accepted by the second UE is the same, and the number of the sixth timer is also the same as the number of carriers configured (or accepted by the second UE).
  • the timing duration of the fifth timer may be configured by the first UE, or configured by the second UE, or configured by the first access network device, or may also be pre-configured in the first UE.
  • the timing duration of the sixth timer may be configured by the first UE, or configured by the second UE, or configured by the first access network device, or may also be pre-configured in the second UE.
  • the timing duration of the fifth timer and the timing duration of the sixth timer may or may not be equal.
  • the first UE may maintain the fifth timer and the sixth timer at the same time, or may only maintain any one of the two timers. In this embodiment of the present application, the first UE maintains the fifth timer and the sixth timer at the same time as an example.
  • a fifth timer corresponding to a carrier is used for monitoring a third transmission function of the first UE on the carrier, where the third transmission function includes, for example, that the first UE receives information from the second UE.
  • the third transmission function may include a function for the first UE to receive information from the second UE.
  • the third transmission function of the first UE corresponds to the first transmission function of the second UE.
  • the first transmission function of the second UE includes the second UE sending information to the first UE
  • the third transmission function of the first UE includes the first UE receiving information from the second UE.
  • the first UE when the third transmission function of the first UE on a carrier is activated, and/or when the first UE performs the third transmission function with the second UE on the carrier, the first UE may start or Restart the fifth timer corresponding to the carrier.
  • the first UE determines to activate or deactivate the carrier according to the instruction of the access network device, then if the second instruction information indicates that the second carrier is activated, it may specifically indicate that the first UE is activated on the second carrier. or, if the second indication information indicates deactivation of the third carrier, it may specifically indicate deactivation of the third transmission function of the first UE on the third carrier and/or Fourth transfer function.
  • the second indication information indicates to activate the third transmission function of the first UE on the second carrier, or the first UE determines to activate the third transmission function of the first UE on the second carrier according to any of the methods introduced in S301, Then, when the first UE finishes receiving the second indication information, or finishes sending the first indication information (the first indication information indicates activation of the first transmission function of the second UE on the second carrier), the second UE may start or restart the second transmission function.
  • the fifth timer corresponding to the carrier. For example, if the second indication information is carried in the PDCCH, then the first UE may start or restart the fifth timer within the first time unit after the end of the PDCCH.
  • the first indication information is carried in the PSSCH, and the first UE may start or restart the fifth timer within the first time unit after the end of the PSSCH.
  • the second indication information indicates to activate the fourth transmission function of the first UE on the second carrier, and does not indicate to activate the third transmission function of the second UE on the second carrier, or the first UE determines not to activate the first UE
  • the third transmission function on the second carrier, or the first indication information indicates activation of the second transmission function of the second UE on the second carrier and does not indicate activation of the first transmission function of the second UE on the second carrier, then The fifth timer corresponding to the second carrier remains unchanged.
  • the first UE may start or Restart the fifth timer corresponding to the carrier. For this, refer to the related introduction of S302.
  • the first UE may deactivate the first UE's third timer on the carrier corresponding to the fifth timer. transfer function. Or, if the first indication information in S301 indicates to deactivate the first transmission function of the second UE on the third carrier, or the second indication information indicates to deactivate the third transmission function of the first UE on the third carrier, then The first UE may also deactivate the third transmission function of the first UE on the third carrier, and in addition, the first UE may also disable the fifth timer corresponding to the third carrier.
  • the deactivation of the third transmission function of the first UE on a certain carrier by the first UE may be realized in that the first UE no longer performs the third transmission function on the carrier, but for other transmissions of the first UE on the carrier
  • the function is not limited, for example, the first UE may also perform the fourth transmission function on the carrier (if the sixth timer has not expired), and/or perform the transmission function with other UEs on the carrier, etc.
  • the first UE can pass the fifth timing
  • the device automatically deactivates the transmission function on the corresponding carrier, so as to reduce the power consumption of the first UE.
  • the utilization rate of the carrier can be improved.
  • a sixth timer corresponding to a carrier is used to monitor a fourth transmission function of the first UE on the carrier, where the fourth transmission function includes, for example, sending information from the first UE to the second UE.
  • the fourth transmission function may include a function of the first UE sending information to the second UE.
  • the fourth transmission function of the first UE corresponds to the second transmission function of the second UE.
  • the fourth transmission function of the first UE includes the first UE sending information to the second UE
  • the second transmission function of the second UE includes the second UE receiving information from the first UE.
  • the first UE when the fourth transmission function of the first UE on a carrier is activated, and/or when the first UE performs the fourth transmission function with the second UE on the carrier, the first UE may start or Restart the sixth timer corresponding to the carrier.
  • the second indication information indicates to activate the fourth transmission function of the first UE on the second carrier, or the first UE determines to activate the fourth transmission function of the first UE on the second carrier according to any method described in S301, Then, when the first UE finishes receiving the second indication information, or finishes sending the first indication information (the first indication information indicates activation of the second transmission function of the second UE on the second carrier), the second UE may start or restart the second transmission function.
  • the sixth timer corresponding to the carrier. For example, if the second indication information is carried in the PDCCH, then the first UE may start or restart the sixth timer within the first time unit after the end of the PDCCH.
  • the first indication information is carried in the PSSCH, and the first UE may start or restart the sixth timer within the first time unit after the end of the PSSCH.
  • the second indication information indicates to activate the third transmission function of the first UE on the second carrier, and does not indicate to activate the fourth transmission function of the second UE on the second carrier, or the first UE determines not to activate the first UE
  • the fourth transmission function on the second carrier, or the first indication information indicates activation of the first transmission function of the second UE on the second carrier and does not indicate activation of the second transmission function of the second UE on the second carrier, then The sixth timer corresponding to the second carrier remains unchanged.
  • the first UE may start or restart a sixth timer corresponding to the carrier. For this, refer to the related introduction of S302.
  • the first UE may deactivate the fourth timer of the first UE on the carrier corresponding to the sixth timer. transfer function. Or, if the first indication information in S301 indicates to deactivate the second transmission function of the second UE on the third carrier, or the second indication information indicates to deactivate the fourth transmission function of the first UE on the third carrier, then The first UE may also deactivate the fourth transmission function of the first UE on the third carrier, and in addition, the first UE may also disable the sixth timer corresponding to the third carrier.
  • the deactivation of the fourth transmission function of the first UE on a certain carrier by the first UE may be realized as that the first UE is no longer on the The fourth transmission function is performed on the carrier, but there is no restriction on other transmission functions of the first UE on the carrier, for example, the first UE may also perform the third transmission function on the carrier (if the fifth timer has not expired), and /or perform a transmission function with other UEs on the carrier, etc.
  • the first UE can pass the sixth timing
  • the device automatically deactivates the transmission function on the corresponding carrier, so as to reduce the power consumption of the first UE.
  • the utilization rate of the carrier can be improved.
  • the fifth timer and the sixth timer corresponding to a carrier can monitor different transmission functions respectively, and can realize finer-grained control over the transmission function of the first UE, for example, a kind of transmission function of the first UE When the transmission function is deactivated, another transmission function and other transmission functions may still be available, thereby improving the transmission efficiency of the first UE.
  • the "activation" of a certain carrier by a certain UE in the embodiment of the present application may mean that the UE does not communicate with any UE on the carrier, that is, the UE no longer uses the carrier; or it may mean that the UE does not communicate with any UE on the carrier; The UE no longer performs some transmission functions on the carrier, but there is no restriction on whether the UE performs other transmission functions on the carrier.
  • S302 and S303 can be executed simultaneously, or S302 is executed before S303, or S302 is executed after S303.
  • the first UE or the first access network device may determine to activate or deactivate the corresponding carrier according to the current communication situation between the first UE and the second UE, or activate or deactivate the transmission of the UE on the corresponding carrier
  • the function can not only meet the data transmission requirements, reduce the data transmission delay, but also reduce the power consumption of the UE.
  • a carrier can be configured for the second UE through the embodiment shown in FIG. 2 .
  • the corresponding carrier can be activated or deactivated through the embodiment shown in FIG. 3 , or activated or deactivated. Activate the transmission function of the UE on the corresponding carrier.
  • the embodiment shown in FIG. 3 and the embodiment shown in FIG. 2 may not be combined, but applied separately.
  • FIG. 4 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device 400 may be the first UE described in the embodiment shown in FIG. 2 or the embodiment shown in FIG. 3 or the circuit system of the first UE, and is used to implement the method corresponding to the first UE in the above method embodiment. Methods.
  • the communication device 400 may be the second UE or the circuit system of the second UE described in the embodiment shown in FIG. 2 or the embodiment shown in FIG. Two UE methods.
  • the communication device 400 may be the access network device or the circuit system of the access network device described in the embodiment shown in FIG. 2 or the embodiment shown in FIG. 3 , and is used to implement the corresponding A method for access network equipment.
  • a circuit system is a chip system.
  • the communication device 400 includes at least one processor 401 .
  • the processor 401 can be used for internal processing of the device to realize certain control processing functions.
  • processor 401 includes instructions.
  • processor 401 may store data.
  • different processors may be separate devices, may be located in different physical locations, and may be located on different integrated circuits.
  • different processors may be integrated within one or more processors, eg, on one or more integrated circuits.
  • the communication device 400 includes one or more memories 403 for storing instructions.
  • data may also be stored in the memory 403 .
  • the processor and memory can be set separately or integrated together.
  • the communication device 400 includes a communication line 402 and at least one communication interface 404 .
  • the memory 403 , the communication line 402 and the communication interface 404 are all options, they are all indicated by dotted lines in FIG. 4 .
  • the communication device 400 may further include a transceiver and/or an antenna.
  • the transceiver can be used to communicate to other mounted device to send messages or receive messages from other devices.
  • the transceiver may be referred to as a transceiver, a transceiver circuit, an input-output interface, etc., and is used to realize the transceiver function of the communication device 400 through an antenna.
  • the transceiver includes a transmitter (transmitter) and a receiver (receiver).
  • the transmitter can be used to generate a radio frequency (radio frequency) signal from a baseband signal
  • the receiver can be used to convert the radio frequency signal into a baseband signal.
  • the processor 401 may include a general-purpose central processing unit (central processing unit, CPU), a microprocessor, a specific application integrated circuit (application specific integrated circuit, ASIC), or one or more programs for controlling the implementation of the embodiment of the present application. integrated circuits.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • Communication line 402 may include a pathway for communicating information between the above-described components.
  • Communication interface 404 using any device such as a transceiver, for communicating with other devices or communication networks, such as Ethernet, radio access network (radio access network, RAN), wireless local area network (wireless local area networks, WLAN), Wired access network, etc.
  • radio access network radio access network
  • WLAN wireless local area network
  • Wired access network etc.
  • Memory 403 may be read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM) or other types that can store information and instructions It can also be an electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be programmed by a computer Any other medium accessed, but not limited to.
  • the memory 403 may exist independently, and is connected to the processor 401 through the communication line 402 . Alternatively, the memory 403 can also be integrated with the processor 401 .
  • the memory 403 is used to store computer-executed instructions for executing the solutions of the embodiments of the present application, and the execution is controlled by the processor 401 .
  • the processor 401 is configured to execute computer-executed instructions stored in the memory 403, so as to implement the communication method provided by the above-mentioned embodiments in the embodiments of the present application.
  • the computer-executed instructions in the embodiments of the present application may also be referred to as application program codes, which is not specifically limited in the embodiments of the present application.
  • the processor 401 may include one or more CPUs, for example, CPU0 and CPU1 in FIG. 4 .
  • the communication device 400 may include multiple processors, for example, the processor 401 and the processor 408 in FIG. 4 .
  • Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the chip When the apparatus shown in FIG. 4 is a chip, such as a chip of the first UE, or a chip of the second UE, or a chip of an access network device, the chip includes a processor 401 (may also include a processor 408), Communication line 402 , memory 403 and communication interface 404 .
  • the communication interface 404 may be an input interface, a pin, or a circuit.
  • the memory 403 may be a register, a cache, and the like.
  • the processor 401 and the processor 408 may be a general-purpose CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling program execution of the communication method in any of the above-mentioned embodiments.
  • the embodiment of the present application may divide the device into functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules.
  • the division of modules in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, There may be another division method.
  • FIG. 5 shows a schematic diagram of a device, and the device 500 may be the first UE, the second UE or the access network involved in the above method embodiments.
  • the device is either a chip in the first UE, a chip in the second UE, or a chip in the access network device.
  • the apparatus 500 includes a sending unit 501 , a processing unit 502 and a receiving unit 503 .
  • the apparatus 500 can be used to implement the steps performed by the first UE, the second UE, or the access network device in the method of the embodiment of the present application, and related features can refer to the above embodiments, and will not be repeated here. .
  • the functions/implementation process of the sending unit 501, the receiving unit 503, and the processing unit 502 in FIG. 5 may be implemented by the processor 401 in FIG. 4 invoking computer-executed instructions stored in the memory 403.
  • the function/implementation process of the processing unit 502 in FIG. 5 can be realized by calling the computer execution instructions stored in the memory 403 by the processor 401 in FIG. The process may be implemented through communication interface 404 in FIG. 4 .
  • the functions/implementation process of the sending unit 501 and the receiving unit 503 may also be implemented through pins or circuits.
  • the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores computer programs or instructions, and when the computer programs or instructions are executed, the first UE, the second A method performed by a UE or an access network device.
  • the functions described in the above embodiments can be realized in the form of software function units and sold or used as independent products.
  • the technical solution of the embodiment of the present application is essentially or the part that contributes to or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including several
  • the instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the embodiments of the present application.
  • the storage medium includes: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.
  • the embodiment of the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is run on the computer, the computer is made to execute any one of the foregoing method embodiments by the first UE, the second 2. The method performed by the UE or the access network equipment.
  • An embodiment of the present application further provides a processing apparatus, including a processor and an interface; the processor is configured to execute the method performed by the first UE, the second UE, or the access network device involved in any one of the above method embodiments.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (such as a floppy disk, a hard disk, or a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (solid state disk, SSD)), etc.
  • the various illustrative logic units and circuits described in the embodiments of this application can be processed by a general-purpose processor, digital signal Digital signal processor (DSP), application specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic , discrete hardware components, or any combination of the above designed to implement or operate the described functions.
  • the general-purpose processor may be a microprocessor, and optionally, the general-purpose processor may also be any conventional processor, controller, microcontroller or state machine.
  • a processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration to accomplish.
  • the steps of the method or algorithm described in the embodiments of the present application may be directly embedded in hardware, a software unit executed by a processor, or a combination of both.
  • the software unit may be stored in RAM, flash memory, ROM, erasable programmable read-only memory (EPROM), EEPROM, registers, hard disk, removable disk, CD-ROM or any other form in the art in the storage medium.
  • the storage medium can be connected to the processor, so that the processor can read information from the storage medium, and can write information to the storage medium.
  • the storage medium can also be integrated into the processor.
  • the processor and the storage medium can be set in the ASIC, and the ASIC can be set in the terminal device.
  • the processor and the storage medium may also be disposed in different components in the terminal device.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande se rapporte à un procédé et à un dispositif de communication. Un premier dispositif terminal détermine N types de configurations de porteuse, chacun des N types de configurations de porteuse comprenant une porteuse pour que le premier dispositif terminal envoie des informations à un second dispositif terminal, et/ou comprenant une porteuse pour que le second dispositif terminal envoie des informations au premier dispositif terminal. Le premier dispositif terminal envoie des premières informations de configuration au second dispositif terminal, de façon à indiquer les N types de configurations de porteuse. Au moyen des premières informations de configuration, à la fois un expéditeur et un récepteur peuvent connaître clairement les porteuses utilisées pour une communication entre les deux parties, de sorte que les informations envoyées par l'expéditeur peuvent être correctement reçues par le récepteur, et que le taux de réussite de réception du récepteur est amélioré.
PCT/CN2023/077625 2022-03-01 2023-02-22 Procédé et dispositif de communication WO2023165387A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202210194310.6 2022-03-01
CN202210194310 2022-03-01
CN202210420954.2A CN116761266A (zh) 2022-03-01 2022-04-20 一种通信方法及设备
CN202210420954.2 2022-04-20

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CN110149183A (zh) * 2018-02-13 2019-08-20 华为技术有限公司 通信设备
WO2020063327A1 (fr) * 2018-09-26 2020-04-02 维沃移动通信有限公司 Procédés de sélection et de configuration de ressources de transmission de liaison secondaire et dispositif
CN111757291A (zh) * 2019-03-28 2020-10-09 华为技术有限公司 一种通信方法和装置
WO2021062805A1 (fr) * 2019-09-30 2021-04-08 华为技术有限公司 Procédé et appareil de communication
WO2021081898A1 (fr) * 2019-10-31 2021-05-06 华为技术有限公司 Procédé de communication et appareil de communication
WO2021238786A1 (fr) * 2020-05-25 2021-12-02 华为技术有限公司 Procédé de communication sans fil, support et système

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WO2020063327A1 (fr) * 2018-09-26 2020-04-02 维沃移动通信有限公司 Procédés de sélection et de configuration de ressources de transmission de liaison secondaire et dispositif
CN111757291A (zh) * 2019-03-28 2020-10-09 华为技术有限公司 一种通信方法和装置
WO2021062805A1 (fr) * 2019-09-30 2021-04-08 华为技术有限公司 Procédé et appareil de communication
WO2021081898A1 (fr) * 2019-10-31 2021-05-06 华为技术有限公司 Procédé de communication et appareil de communication
WO2021238786A1 (fr) * 2020-05-25 2021-12-02 华为技术有限公司 Procédé de communication sans fil, support et système

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