WO2022151277A1 - Procédé de communication appliqué à un mécanisme de réception discontinue, et appareil associé - Google Patents

Procédé de communication appliqué à un mécanisme de réception discontinue, et appareil associé Download PDF

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Publication number
WO2022151277A1
WO2022151277A1 PCT/CN2021/071933 CN2021071933W WO2022151277A1 WO 2022151277 A1 WO2022151277 A1 WO 2022151277A1 CN 2021071933 W CN2021071933 W CN 2021071933W WO 2022151277 A1 WO2022151277 A1 WO 2022151277A1
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WIPO (PCT)
Prior art keywords
terminal device
drx
configuration information
information
paging
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PCT/CN2021/071933
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English (en)
Chinese (zh)
Inventor
彭文杰
肖潇
赵力
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华为技术有限公司
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Priority to PCT/CN2021/071933 priority Critical patent/WO2022151277A1/fr
Priority to CN202180084370.6A priority patent/CN116602049A/zh
Publication of WO2022151277A1 publication Critical patent/WO2022151277A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a communication method and related apparatuses applied to a discontinuous reception mechanism.
  • user equipment In a wireless communication system, user equipment (user equipment, UE) accesses a wireless communication network through a base station, so as to communicate with other UEs through the wireless communication network.
  • UE user equipment
  • the communication interface between the UE and the base station is called the Uu interface.
  • the UE communicates with the base station through the Uu interface, in order to reduce the power consumed by the UE to monitor the physical downlink control channel (PDCCH) used by the base station to schedule uplink physical resources and downlink physical resources, the communication between the UE and the base station can be based on non- Continuous reception (DRX) mechanism for communication.
  • the DRX mechanism between the UE and the base station may be referred to as the Uu DRX mechanism.
  • the basic working principle of the DRX mechanism is as follows: configure the DRX cycle (cycle) for the UE in the radio resource control (RRC) connected state, and the DRX cycle consists of the duration (On Duration) and the discontinuous reception opportunity (Opportunity for DRX) Composition; during the "On Duration” time, the UE monitors and receives the PDCCH; during the "Opportunity for DRX” time, the UE does not receive the PDCCH to reduce power consumption.
  • “On Duration” can also be called the activation period of the Uu DRX mechanism.
  • user equipment In a wireless communication system, user equipment (user equipment, UE) may also communicate directly without using a network device.
  • the interface for direct communication between UE and UE is called PC5 interface.
  • the link for direct communication between the UE and the UE is called a sidelink (SL) link.
  • the data transmission between the UE and the UE is carried out directly through the SL without going through the network, which can reduce the communication delay.
  • a DRX mechanism similar to that corresponding to the Uu interface can be introduced.
  • the newly introduced mechanism is called the SL DRX mechanism.
  • the "On Duration" in the SL DRX mechanism can also be called the activation period of the SL DRX mechanism.
  • UE1 acts as the data transmitter of the SL
  • UE2 acts as the data receiver of the SL.
  • UE2 also receives downlink data from the base station.
  • the time of the Uu DRX activation period is consistent with the time of the SL DRX activation period.
  • the present application provides a communication method and a related device applied to a discontinuous reception mechanism, so that the time of the Uu DRX activation period of the terminal device is consistent with the time of the SL DRX activation period, and the power saving effect is improved.
  • the present application provides a communication method applied to a discontinuous reception DRX mechanism, the method is executed by a communication device, the communication device is a first terminal device or a chip applied to the first terminal device, the communication The method includes: acquiring first DRX configuration information, where the first DRX configuration information is used for communication between a first terminal device and a first access network device through a Uu interface between terminal devices; sending auxiliary information to a second terminal device, the The auxiliary information is determined based on the first DRX configuration information, and the auxiliary information is used to assist the second terminal device to determine the first side used when the first terminal device communicates with the second terminal device uplink SL DRX configuration information; receiving the first SL DRX configuration information from the second terminal device.
  • the first terminal device obtains the first DRX configuration information, and sends the auxiliary information determined according to the first DRX configuration information to the second terminal device, so that the second terminal device can fully determine the first SL DRX configuration information when determining the first SL DRX configuration information.
  • the activation period of the SDL DRX of the first terminal device and the activation period of the Uu DRX are as consistent as possible, so as to achieve the best power saving effect of the first terminal device.
  • the first DRX configuration information includes a paging DRX configuration for the first terminal device to monitor paging messages from the first access network device information
  • the auxiliary information includes first paging DRX configuration information
  • the first terminal device acquires the paging DRX configuration information of the first access network device, determines the first paging DRX configuration information according to the paging DRX configuration information, and includes the auxiliary DRX configuration information of the first paging DRX configuration information.
  • the information is sent to the second terminal device, so that the second terminal device can fully consider the paging DRX configuration information of the first terminal device when determining the first SL DRX configuration information.
  • the first paging DRX configuration information includes the system frame number and time slot number of the first terminal device monitoring the paging message.
  • the first paging DRX configuration information includes one or more of the following information: the identifier of the first terminal device, the first The paging cycle of the terminal device, the number of paging frames in the paging cycle, the number of paging occasions in the paging frame, or the offset of the paging frame in the paging cycle.
  • the auxiliary information further includes first offset indication information
  • the first offset indication information includes One or more of the following information: the offset between the system frame number and the straight frame number of the first terminal device, the offset between the system frame subframe and the straight frame subframe of the first terminal device amount, the offset between the time slot of the system frame subframe and the time slot of the direct frame subframe, or the carrier used when the first terminal device communicates with the first access network device Subcarrier spacing.
  • the auxiliary information sent by the first terminal device to the second terminal device includes the first paging DRX configuration information and the first offset indication information, and the second terminal device can fully understand the first terminal device through the auxiliary information
  • the first paging DRX configuration information includes a paging frame and/or a paging occasion on which the first terminal device monitors the paging message, respectively.
  • the first terminal device converts the PF and/or PO calculated according to the paging DRX configuration information to the SL timing known by both the first terminal device and the second terminal device, which helps the first terminal device to Reach a consensus with the second terminal device.
  • the auxiliary information further includes second offset indication information
  • the second offset indication information includes one or more of the following information: the offset between the time slot of the system frame subframe and the time slot of the direct frame subframe or the subcarrier spacing of the carrier used when the first terminal device communicates with the first access network device .
  • the auxiliary information sent by the first terminal device to the second terminal device includes the first paging DRX configuration information and the second offset indication information, and the second terminal device can fully understand the first terminal device through the auxiliary information
  • the auxiliary information further includes first recommended configuration information
  • the first recommended configuration information includes the recommended first SL activation duration and/or Recommended first SL DRX cycle.
  • the auxiliary information sent by the first terminal device to the second terminal device includes first recommended configuration information, and the second terminal device can optimize the determined first SL DRX configuration information according to the first recommended configuration information, The determined first SL DRX configuration information is made more reasonable, and the energy saving effect of the first terminal device is further improved.
  • the first SL activation duration covers the paging frame and/or paging occasion of the first terminal device in the time domain
  • the The first SL DRX cycle is an integer multiple of the period of the paging occasion of the first terminal device or the cycle of the paging occasion of the first terminal device is an integer multiple of the first SL DRX cycle.
  • the first SL activation duration and the recommended first SL DRX cycle in the first recommended configuration information are limited, so that the determined activation period of the SL DRX overlaps the activation period of the paging DRX as much as possible.
  • the first DRX configuration information includes first Uu DRX configuration information
  • the auxiliary information includes the first Uu DRX configuration information
  • the first terminal device in the connected state acquires the first Uu DRX configuration information, and sends the auxiliary information including the first Uu DRX configuration information to the second terminal device, so that the second terminal device determines the first SL DRX when determining the first SL DRX.
  • the first Uu DRX configuration information of the first terminal device can be fully considered.
  • the auxiliary information further includes third offset indication information
  • the third offset indication information includes one or more of the following information: The offset between the system frame number of the first terminal device and the straight frame number, the offset between the system frame subframe and the straight frame subframe of the first terminal device, the system frame subframe The offset between the time slot of the direct frame subframe and the time slot of the direct frame subframe or the subcarrier spacing of the carrier used when the first terminal device communicates with the first access network device.
  • the auxiliary information sent by the first terminal device to the second terminal device includes the first Uu DRX configuration information and the third offset indication information, and the second terminal device can fully understand the The deviation between the Uu timing and the SL timing is such that the determined activation period in the first SL DRX configuration information is time-domain aligned with the activation period in the first Uu DRX configuration information of the first terminal device as much as possible.
  • the auxiliary information includes second Uu DRX configuration information, and the second Uu DRX configuration information is based on the configuration of the first terminal device.
  • the offset information between the Uu downlink timing and the SL timing is the Uu DRX configuration information obtained by adjusting the parameter values in the first Uu DRX configuration information.
  • the first terminal device adjusts the parameter values in the first Uu DRX configuration information according to the offset information between the Uu downlink timing and the SL timing of the first terminal device, to obtain the second Uu DRX configuration information, and
  • the second Uu DRX configuration information is sent to the second terminal equipment, so that the activation period in the determined first SL DRX configuration information is time-domain aligned with the activation period in the first Uu DRX configuration information of the first terminal equipment as much as possible, and simultaneously The speed at which the second terminal device determines the first SL DRX configuration information is improved.
  • the auxiliary information further includes second recommended configuration information
  • the second recommended configuration information includes recommended The second SL activation duration and/or the recommended second SL DRX cycle.
  • the auxiliary information sent by the first terminal device to the second terminal device includes second recommended configuration information, and the second terminal device can optimize the determined first SL DRX configuration information according to the second recommended configuration information, The determined first SL DRX configuration information is made more reasonable, and the energy saving effect of the first terminal device is further improved.
  • the start time of the activation duration of the second SL and the activation duration of the Uu interface of the first terminal device are at Aligned in the time domain
  • the second SL activation duration is less than or equal to the activation duration of the Uu interface of the first terminal device
  • the second SL DRX cycle is an integer multiple of the Uu DRX cycle of the first terminal device or
  • the Uu DRX cycle of the first terminal device is an integer multiple of the second SL DRX cycle.
  • the second SL activation duration and the recommended second SL DRX cycle in the second recommended configuration information are limited, so that the determined activation period of the SL DRX overlaps with the activation period of the paging DRX as much as possible.
  • the method further includes: sending first indication information to the second terminal device, the first indication information
  • the SDL DRX configuration information for instructing the second terminal device to be determined for the first terminal device needs to keep the consistency between the activation period of the SDL DRX and the activation period of the Uu DRX of the first terminal device.
  • the first terminal device sends first indication information to the second terminal device, which is used to instruct the second terminal device to make the activation period of SL DRX and the activation period of Uu DRX as much as possible when determining the first SL DRX configuration information Consistent, to achieve the best power saving effect of the first terminal device.
  • the first terminal device can simultaneously monitor the information from the first access network device and the information from the second terminal device;
  • the first indication information includes first capability indication information, and the first capability indication information indicates that the first terminal device can monitor data from the first access network device and from the second terminal device at the same time. Information.
  • the method further includes: sending second indication information to the second terminal device, the second indication information
  • the SDL DRX configuration information used to instruct the second terminal device to be determined for the first terminal device needs to keep the SLDRX activation period of the first terminal device and the Uu DRX activation period staggered in the time domain.
  • the first terminal device sends the second indication information to the second terminal device, which is used to instruct the second terminal device to make the time of the activation period of the SL DRX and the time of the Uu DRX as much as possible when determining the first SL DRX configuration information.
  • the time of the activation period is staggered in the time domain to avoid data loss due to information receiving conflict, so that the first terminal device can completely monitor the information from the first access network device and the second terminal device.
  • the first terminal device can only monitor data from the first access network device or can only monitor data from the second access network device at the same time. terminal equipment information;
  • the second indication information includes second capability indication information, and the second capability indication information indicates that the first terminal device can only monitor data from the first access network device or can only monitor data from the first access network device at the same time. information about the second terminal device.
  • the first SL DRX configuration information does not include the first SL DRX timer, or the first SL DRX timer
  • the length of the first SL DRX timer in the DRX configuration information is set to 0, and the first SL DRX timer includes a deactivation timer and a retransmission timer.
  • the first SL DRX configuration information determined by the second terminal device does not include the first SL DRX timing or the length of the first SL DRX timer is set to 0, so as to avoid the collision of data reception caused by the first SL DRX timer.
  • the first SL DRX configuration information includes a first SL DRX timer, and the first SL DRX timing
  • the timer includes a deactivation timer and a retransmission timer
  • the method further includes: during the monitoring period of the first terminal device, the first terminal device only monitors messages from the first access network device, and the monitoring period includes the activation period of the connected state , a paging frame in a disconnected state, and/or a paging occasion in a disconnected state.
  • the first SL DRX configuration information determined by the second terminal device includes the first SL DRX timer , if encountering the activation period in the first DRX configuration information, the first terminal device continues to run the first SL DRX timer, but at this time the first terminal device only monitors the information from the first access network device, avoiding the Data loss due to conflicting message reception.
  • the present application provides a communication method applied to a discontinuous reception DRX mechanism, the method is executed by a communication device, the communication device is a second terminal device or a chip applied to the second terminal device, the communication The method includes: receiving auxiliary information sent by a first terminal device, where the auxiliary information is used to assist a second terminal device in determining a first sidelink SL used when the first terminal device communicates with the second terminal device DRX configuration information; determine the first SL DRX configuration information according to the auxiliary information; send the first SL DRX configuration information to the first terminal device.
  • the auxiliary information includes paging DRX configuration information, and the paging DRX configuration information is used by the first terminal device to monitor the information from the first access network device. paging message.
  • the paging DRX configuration information includes the system frame number and time slot number of the first terminal device monitoring the paging message.
  • the paging DRX configuration information includes one or more of the following information: the identifier of the first terminal device, the first terminal device , the number of paging frames in the paging cycle, the number of paging occasions in the paging frame, or the offset of the paging frame in the paging cycle.
  • the auxiliary information further includes first offset indication information
  • the first offset indication information includes One or more of the following information: the offset between the system frame number and the straight frame number of the first terminal device, the offset between the system frame subframe and the straight frame subframe of the first terminal device amount, the offset between the time slot of the system frame subframe and the time slot of the direct frame subframe, or the carrier used when the first terminal device communicates with the first access network device Subcarrier spacing.
  • the paging DRX configuration information includes the paging frames and/or paging occasions corresponding to the first terminal equipment monitoring the paging message, respectively. Straight frame number and slot number.
  • the auxiliary information further includes second offset indication information
  • the second offset indication information includes one or more of the following information: the offset between the time slot of the system frame subframe and the time slot of the direct frame subframe or the subcarrier spacing of the carrier used when the first terminal device communicates with the first access network device .
  • the auxiliary information further includes first recommended configuration information
  • the first recommended configuration information includes the recommended first SL activation duration and/or Recommended first SL DRX cycle.
  • the first SL activation duration covers the paging frame and/or paging occasion of the first terminal device in the time domain
  • the The first SL DRX cycle is an integer multiple of the period of the paging occasion of the first terminal device or the cycle of the paging occasion of the first terminal device is an integer multiple of the first SL DRX cycle.
  • the auxiliary information includes Uu DRX configuration information between the first terminal devices.
  • the auxiliary information further includes first offset indication information
  • the first offset indication information includes one or more of the following information: The offset between the system frame number of the first terminal device and the straight frame number, the offset between the system frame subframe and the straight frame subframe of the first terminal device, the system frame subframe The offset between the time slot of the direct frame subframe and the time slot of the direct frame subframe or the subcarrier spacing of the carrier used when the first terminal device communicates with the first access network device.
  • the auxiliary information includes second Uu DRX configuration information, and the second Uu DRX configuration information is based on the configuration of the first terminal device.
  • the offset information between the Uu downlink timing and the SL timing is the Uu DRX configuration information obtained by adjusting the parameter values in the first Uu DRX configuration information.
  • the auxiliary information further includes second recommended configuration information
  • the second recommended configuration information includes recommended The second SL activation duration and/or the recommended second SL DRX cycle.
  • the start time of the activation duration of the second SL and the activation duration of the Uu interface of the first terminal device are at Aligned in the time domain
  • the second SL activation duration is less than or equal to the activation duration of the Uu interface of the first terminal device
  • the second SL DRX cycle is an integer multiple of the Uu DRX cycle of the first terminal device or
  • the Uu DRX cycle of the first terminal device is an integer multiple of the second SL DRX cycle.
  • the method further includes: receiving first indication information sent by the first terminal device, the first indication The information is used to indicate that the SL DRX configuration information determined by the second terminal device for the first terminal device needs to keep the consistency between the activation period of the SL DRX and the activation period of the Uu DRX of the first terminal device.
  • the first indication information includes first capability indication information, and the first capability indication information indicates that the first terminal device can simultaneously Monitor information from the first access network device and from the second terminal device.
  • the method further includes: receiving second indication information sent by the first terminal device, the second indication The information is used to indicate that the SL DRX configuration information determined by the second terminal device for the first terminal device needs to keep the activation period of the SL DRX and the activation period of the Uu DRX of the first terminal device staggered in the time domain.
  • the second indication information includes second capability indication information, and the second capability indication information indicates the first terminal device at the same time Only information from the first access network device or only information from the second terminal device can be monitored.
  • the first SL DRX configuration information does not include the first SL DRX timer, or the first SL DRX timer
  • the length of the first SL DRX timer in the DRX configuration information is set to 0, and the first SL DRX timer includes a deactivation timer and a retransmission timer.
  • the determining the first SLDRX configuration information according to the auxiliary information includes: reporting to the second access network The device sends the auxiliary information and the unicast connection identifier corresponding to the auxiliary information; and receives the first SL DRX configuration information from the second access network device.
  • the present application provides a communication apparatus applied to a discontinuous reception DRX mechanism
  • the apparatus may include various modules for implementing the method in the first aspect, and these modules may be implemented by means of software and/or hardware .
  • the present application provides a communication device applied to a discontinuous reception DRX mechanism, the device may include various modules for implementing the method in the second aspect, and these modules may be implemented by means of software and/or hardware .
  • the present application provides a communication device applied to the discontinuous reception DRX mechanism.
  • the apparatus may include a processor coupled to the memory.
  • the memory is used for storing program codes
  • the processor is used for executing the program codes in the memory, so as to implement the method in the first aspect or the second aspect or any one of the implementation manners thereof.
  • the apparatus may also include the memory.
  • the present application provides a chip, comprising at least one processor and a communication interface, wherein the communication interface and the at least one processor are interconnected through a line, and the at least one processor is configured to run a computer program or instruction to execute The method according to the first aspect or the second aspect or any one of the possible implementations thereof.
  • the present application provides a computer-readable medium, the computer-readable medium stores program code for device execution, and the program code includes a computer-readable medium for executing the first aspect or the second aspect or any one of them. implement the method described.
  • the present application provides a computer program product comprising instructions, which, when the computer program product is run on a computer, causes the computer to execute the method described in the first aspect or the second aspect or any one of the possible implementations thereof. method.
  • the present application provides a computing device, comprising at least one processor and a communication interface, the communication interface and the at least one processor are interconnected by a line, the communication interface communicates with a target system, and the at least one processing
  • the computer is used to run a computer program or instructions to perform the method according to the first aspect or the second aspect or any one of the possible implementations thereof.
  • the present application provides a computing system, comprising at least one processor and a communication interface, wherein the communication interface and the at least one processor are interconnected by a line, the communication interface communicates with a target system, and the at least one processing
  • the computer is used to run a computer program or instructions to perform the method according to the first aspect or the second aspect or any one of the possible implementations thereof.
  • FIG. 1 is a schematic structural diagram of a communication system to which the application is applicable;
  • FIG. 2 is a schematic flowchart of a communication method applied to a DRX mechanism according to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a communication method applied to a DRX mechanism according to another embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a communication method applied to a DRX mechanism according to another embodiment of the present application.
  • FIG. 5 is a schematic diagram of a situation in which the first SL DRX configuration information is unreasonable due to different Uu downlink timings of the first terminal equipment and the second terminal equipment;
  • FIG. 6 is a schematic flowchart of a communication method applied to a DRX mechanism according to another embodiment of the present application.
  • FIG. 7 is a schematic diagram of a situation in which information reception conflicts due to a deactivation timer
  • FIG. 8 is a schematic flowchart of a communication method applied to a DRX mechanism according to another embodiment of the present application.
  • FIG. 9 is a schematic diagram of the first recommended configuration information constructed based on the paging DRX configuration information
  • Fig. 10 is the logical schematic diagram of the second recommended configuration information constructed based on Uu DRX configuration information
  • FIG. 11 is a schematic flowchart of a communication method applied to a DRX mechanism according to another embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication apparatus applied to a DRX mechanism according to an embodiment of the present application
  • FIG. 13 is a schematic structural diagram of a communication device applied to a DRX mechanism according to another embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a communication apparatus applied to a DRX mechanism according to still another embodiment of the present application.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • LTE-A advanced long term evolution
  • NR New Radio
  • evolution system of NR system LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed frequency bands, non-licensed spectrum NR (NR-based access to unlicensed spectrum, NR-U) systems on licensed frequency bands, worldwide interoperability for microwave access (WiMAX) communication systems, wireless local area networks (WLAN), wireless security Wireless fidelity (WiFi), next-generation communication systems or other communication systems, etc.
  • WiMAX worldwide interoperability for microwave access
  • WLAN wireless local area networks
  • WiFi wireless security Wireless fidelity
  • next-generation communication systems or other communication systems etc.
  • the NR system may also be called a 5G system or a 5G network.
  • the technical solution of the present application can also be applied to a device to device (device to device, D2D) communication system, a machine to machine (machine to machine, M2M) communication system, a machine type communication (machine type communication, MTC), Vehicle to X (V2X) system, and vehicle to vehicle (V2V) communication system, etc.
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2X Vehicle to X
  • V2V vehicle to vehicle
  • FIG. 1 is a schematic diagram of a communication system to which this application applies.
  • the communication system 100 may include a network device 111 , a network device 112 , a terminal device 121 and a terminal device 122 .
  • the network device 111 and the network device 112 can provide communication coverage for a specific geographic area, respectively, and can communicate with terminal devices located within the coverage area. For example, network device 111 may communicate with end device 121 , and network device 112 may communicate with end device 122 .
  • the terminal device 121 and the terminal device 122 may be located in the coverage area of the same network device.
  • both the terminal device 121 and the terminal device 122 are located within the coverage area of the network device 111 .
  • the terminal device 121 or the terminal device 122 may be located outside the coverage area of the network device.
  • the terminal device 121 when the terminal device 121 is the data sending end of the SL communication and the terminal device 122 is the data receiving end of the SL communication, the terminal device 121 may be located outside the coverage area of the network device, and the terminal device 122 may be located within the coverage area of the network device 112 .
  • Data communication between the terminal device 121 and the terminal device 122 may be performed through a network device, or may be directly communicated between the UE and the UE without using the network device.
  • the interface for direct communication between UE and UE is called PC5 interface
  • the Uu interface between UE and network device and the link for direct communication between UE and UE is called side link (SL) ).
  • SL communication is the Internet of Vehicles. In the Internet of Vehicles, each vehicle is a UE, and data can be transmitted directly between vehicles through the side link without going through the network, which can effectively reduce the communication delay.
  • the communication system 100 may include a greater number of network devices, and the coverage of each network device may include other numbers of terminal devices, which are not limited in this embodiment of the present application.
  • the network device in this embodiment may be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN).
  • the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a future evolved public land mobile network (Public Land Mobile Network). Land Mobile Network, PLMN) network equipment, etc.
  • the network device 111 and the network device 112 may be (radio access network, (R)AN) devices in the NR system, and the (R)AN device in the NR system may be These are: non-3GPP access networks such as access points (access points, APs) of WiFi networks, next-generation base stations (collectively referred to as new-generation radio access network nodes (NG-RAN nodes), where the next-generation base stations include new Air interface base station (NR nodeB, gNB), new generation evolved base station (NG-eNB), central unit (central unit, CU) and distributed unit (distributed unit, DU) separate form gNB, etc.), new wireless controller ( new radio controller, NR controller), remote radio module, micro base station, relay (relay), transmission receive point (TRP), transmission point (TP) or other nodes.
  • NG-RAN nodes new-generation radio access network nodes
  • NG-RAN nodes new-generation radio access network nodes
  • the next-generation base stations include new Air interface base station (NR node
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.
  • the above-mentioned apparatuses for providing wireless communication functions for terminal equipment are collectively referred to as access network equipment.
  • the terminal device in the embodiments of the present application may be any terminal, and may also be referred to as user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal), terminal (terminal), and the like.
  • user equipment user equipment
  • MS mobile station
  • MS mobile terminal
  • terminal terminal
  • the terminal device in this embodiment may communicate with one or more core networks via the RAN. Therefore, the terminal device may also be referred to as a wireless terminal.
  • the wireless terminal may be a device that provides voice and/or data connectivity to users, and has A wireless connectivity capable handheld device, or other processing device connected to a wireless modem.
  • the terminal device in this embodiment may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (personal digital assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices or wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminals equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security ( Wireless terminals in transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • VR virtual reality
  • AR augmented reality
  • the terminal equipment 121 and the terminal equipment 122 include, but are not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable and/or another data connection/network; and/or via a wireless interface, e.g. for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM - an FM broadcast transmitter; and/or a device of another terminal device arranged to receive/transmit communication signals; and/or an Internet of Things (IoT) device.
  • a terminal device arranged to communicate via a wireless interface may be referred to as a "wireless communication terminal", “wireless terminal” or "mobile terminal".
  • Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radio telephones with data processing, facsimile, and data communication capabilities; may include radio telephones, pagers, Internet/Intranet PDAs with networking access, web browsers, memo pads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or others including radiotelephone transceivers electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • the network equipment and terminal equipment in this embodiment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on water; and can also be deployed on aircraft, balloons, and artificial satellites in the air.
  • the embodiments of the present application do not limit the application scenarios of the network device and the terminal device.
  • the terminal device may also be a relay device.
  • any device capable of data communication with the base station can be regarded as a terminal device.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be considered as on-board terminal equipment, and the on-board terminal equipment can be implemented as an on-board unit (OBU) or with A communication device in the OBU; or, the various terminal equipments described above, if located on the roadside, for example, provided in a roadside infrastructure, can be implemented as a road-side unit (RSU) or a communication device for the RSU , Among them, the RSU is usually the roadside unit of the V2X system, which can be used to receive real-time traffic information sent by traffic signals or application servers or network devices, and dynamically notify relevant vehicles to avoid or reduce traffic accidents and improve traffic efficiency.
  • OBU on-board unit
  • RSU road-side unit
  • the RSU is usually the roadside unit of the V2X system, which can be used to receive real-time traffic information sent by traffic signals or application servers or network devices, and dynamically notify relevant vehicles to avoid or reduce traffic accidents and improve traffic efficiency.
  • the OBU is the vehicle-mounted unit of the V2X system. It can communicate with the RSU/OBU through the PC5 port to realize the vehicle-to-vehicle (V2V), vehicle-to-pedestrian (V2P), Vehicle-to-infrastructure (V2I) and vehicle-to-network (V2N) functions, and can further support fully autonomous driving services.
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-pedestrian
  • V2I Vehicle-to-infrastructure
  • V2N vehicle-to-network
  • the device for implementing the function of the terminal device may be the terminal device itself, or may be a device capable of supporting the terminal device to realize the function, such as a chip system, and the device may be installed in the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a communication method applied to a DRX mechanism according to an embodiment of the present application. As shown in FIG. 2 , the method includes at least S201 to S204.
  • the first access network device in this embodiment may be the network device 111
  • the first terminal device may be the terminal device 121
  • the second terminal device may be the terminal device 122 .
  • the first terminal device acquires first DRX configuration information, where the first DRX configuration information is used for the first terminal device to communicate with the first access network device through the Uu interface.
  • the first DRX configuration information may include paging DRX configuration information for the first terminal device to monitor paging messages from the first access network device.
  • the first DRX configuration information may include Uu DRX configuration information in which the first terminal device monitors downlink control information from the first access network device.
  • the first DRX configuration information may include Uu DRX configuration information for the first terminal device to monitor the PDCCH sent from the first access network device, and based on the Uu DRX configuration information, the first terminal device may determine to monitor the PDCCH from the first access network device. The time of the PDCCH sent by the network access device.
  • the PDCCH includes resource scheduling information, for example, the PDCCH may include scheduling information for indicating physical downlink shared channel (PDSCH) resources or uplink physical shared channel (PUSCH) resources .
  • PDSCH physical downlink shared channel
  • PUSCH uplink physical shared channel
  • the first DRX configuration information may include both paging DRX configuration information and Uu DRX configuration information.
  • the first access network device refers to an access network device that provides access services for the first terminal device.
  • the first terminal device may acquire the first DRX configuration information in one or more ways. For example, the first terminal device may acquire the first DRX configuration information including the paging DRX configuration information through its access network device or core network device. For another example, the first terminal device may obtain the first DRX configuration information including the Uu DRX configuration information through the access network device.
  • the first terminal device may perform configuration based on the first DRX configuration information.
  • it may reply configuration completion indication information to the first access network device.
  • the first terminal device may be configured with dual connections, that is, the first terminal device will acquire two sets of Uu DRX configuration information from the first access network device, and one set is the main base station configured for the first terminal device.
  • the base station Uu DRX configuration information one set is the secondary base station Uu DRX configuration information configured by the secondary base station for the first terminal device.
  • the first access network device may support both high-frequency cells and low-frequency cells
  • two sets of Uu DRX configuration information will be configured for the first terminal device at this time, one is the low-frequency Uu DRX configuration information for the low-frequency cell, and the other is the low-frequency Uu DRX configuration information for the low-frequency cell.
  • Set is high frequency Uu DRX configuration information for high frequency cells.
  • the first terminal device obtains two sets of Uu DRX configuration information, since the Uu timing in each set of Uu DRX configuration information may be different, the offset indication information of each set of Uu DRX configuration information is also different. . That is to say, when the first terminal device has two sets of Uu DRX configuration information, correspondingly, the first terminal device has two sets of offset indication information.
  • this application only takes a set of Uu DRX configuration information as an example for description.
  • the processing method for each set of Uu DRX configuration information is the same.
  • the first terminal device sends auxiliary information to the second terminal device, where the auxiliary information is determined by the first terminal device based on the first DRX configuration information.
  • the first terminal device determines auxiliary information based on the first DRX configuration information, and sends the auxiliary information to the second terminal device, so that the second terminal device determines based on the auxiliary information that the first terminal device communicates with the second terminal device SL DRX configuration information to use.
  • the auxiliary information may be understood as: information used to indicate the time at which the first terminal device monitors downlink information, where the downlink information is information sent by the first access network device.
  • any information sent by the first terminal device to the second terminal device and enabling the second terminal device to know the listening time of the first terminal device for the downlink information from the first access network device falls into this category.
  • the scope of protection of the auxiliary information in the application is to say, any information sent by the first terminal device to the second terminal device and enabling the second terminal device to know the listening time of the first terminal device for the downlink information from the first access network device falls into this category.
  • an SL unicast connection has been established between the first terminal device and the second terminal device.
  • the first terminal device may implement the interaction of auxiliary information based on the SL RRC message.
  • an SL unicast connection has been established between the first terminal device and the second terminal device, and after acquiring the first DRX configuration information from the first access network device, the first terminal device can send an SL RRC message to the second terminal device.
  • the terminal equipment sends auxiliary information.
  • the auxiliary information includes first paging DRX configuration information determined according to the paging DRX configuration information.
  • the first paging DRX configuration information may include a system frame number and a time slot number for the first terminal device to monitor the paging message, and the system frame number and time slot number may be based on the first terminal device from accessing It is calculated from the paging DRX configuration information received by the network device or the core network device.
  • the time slot number included in the first paging DRX configuration information may be one or multiple.
  • the first paging DRX configuration information may include one or more of the following information: an identifier of the first terminal device (for example, 5G-S-TMSI, and/or I-RNTI), the first terminal device paging cycle, the number of paging frames in the paging cycle, the number of paging occasions in the paging frame, or the offset of the paging frame in the paging cycle.
  • an identifier of the first terminal device for example, 5G-S-TMSI, and/or I-RNTI
  • the auxiliary information may further include first offset indication information
  • the first offset indication information may include one or more of the following information: the system frame number (SFN) of the first terminal device and the The offset between the straight frame numbers (DFN), the offset between the system frame subframe of the first terminal device and the straight frame subframe, the difference between the time slot of the system frame subframe and the time slot of the straight frame subframe The offset between the two or the subcarrier spacing of the carrier used by the first terminal device to communicate with the first access network device.
  • SFN system frame number
  • DNN straight frame numbers
  • the first paging DRX configuration information may include the paging frames and/or paging occasions corresponding to the first terminal device monitoring the paging message, respectively.
  • the straight frame number and time slot number That is, the first paging DRX configuration information may include the straight frame number corresponding to the paging frame in which the first terminal device monitors the paging message and the time slot number corresponding to the paging occasion on the straight frame of the first terminal device.
  • the straight frame number corresponding to the paging frame refers to the straight frame number that is aligned with the system frame number of the paging frame when the system frame and the straight frame are aligned in the time domain;
  • the corresponding time slot number on the frame refers to the time slot in which the time slot of the paging time on the system frame is aligned on the straight frame when the system frame and the straight frame are aligned in the time domain.
  • the time slot number included in the first paging DRX configuration information may be one or multiple.
  • the auxiliary information may further include second offset indication information, and the second offset indication information may include one or more of the following information: the time slot of the system frame subframe of the first terminal device is the same as the time slot of the system frame subframe of the first terminal device. The offset between the time slots of the direct frame subframe of the first terminal device or the subcarrier interval of the carrier used when the first terminal device communicates with the first access network device.
  • the auxiliary information may include the first Uu DRX configuration information determined according to the Uu DRX configuration information.
  • the first Uu DRX configuration information may be Uu DRX configuration information included in the first DRX configuration information.
  • the auxiliary information may further include third offset indication information, and the third offset indication information includes one or more of the following information: the first terminal The offset between the system frame number of the device and the straight frame number, the offset between the system frame subframe and the straight frame subframe of the first terminal device, the time slot of the system frame subframe and the straight frame subframe The offset between the time slots or the subcarrier spacing of the carrier used when the first terminal device communicates with the first access network device; in other implementations, the auxiliary information may include the second Uu DRX configuration information, The second Uu DRX configuration information is Uu DRX configuration information obtained by adjusting the parameter values in the first Uu DRX configuration information based on the offset information between the Uu downlink timing and the SL timing of the first terminal device.
  • the parameter value may include the value of the parameter "drx-StartOffset" and/or the value of the parameter "drx-boundary offset".
  • the auxiliary information includes the first paging DRX configuration information determined according to the paging DRX configuration information and the first paging DRX configuration information determined according to the paging DRX configuration information.
  • the auxiliary information includes the first Uu DRX configuration information and the system frame number and timeslot number of the first terminal device monitoring the paging message.
  • the auxiliary information includes the first Uu DRX configuration information and one or more of the following information: an identifier of the first terminal device (for example, 5G-S-TMSI, and/or I-RNTI), the first terminal The paging cycle of the device, the number of paging frames in the paging cycle, the number of paging occasions in the paging frame, or the offset of the paging frame in the paging cycle.
  • an identifier of the first terminal device for example, 5G-S-TMSI, and/or I-RNTI
  • the auxiliary information may further include first offset indication information or third offset information.
  • the auxiliary information may include the first Uu DRX configuration information and the straight frame number and time slot number corresponding to the paging frame and/or paging occasion at which the first terminal device monitors the paging message, respectively.
  • the auxiliary information may further include other parameter information in the second offset indication information and the third offset indication information except the existing parameters in the second offset information, or only include the third offset indication information.
  • the offset indication information does not include the second offset indication information.
  • the SL timing used is determined based on the SL synchronization signal of the second terminal device. For example, the first terminal device determines the SL timing based on the SL synchronization signal of the second terminal device, and the first terminal device determines the first offset indication information, the second offset indication information and the third offset indication information based on the SL timing.
  • the second terminal device determines the first SL DRX configuration information according to the auxiliary information.
  • the first SL DRX configuration information may be understood as: information used to indicate the time at which the first terminal device monitors or receives information sent by the second terminal device.
  • the information sent by the first terminal device to monitor or receive the second terminal device may include first-level sidelink control information (sidelink control information, SCI), or the first-level SCI and the second-level SCI. It can also be understood as a time used to instruct the first terminal device to monitor the physical sidelink control channel (physical sidelink control channel, PSCCH) resources and/or the physical sidelink shared channel (physical sidelink shared channel, PSSCH) resources. information.
  • first-level sidelink control information sidelink control information
  • PSCCH physical sidelink control channel
  • PSSCH physical sidelink shared channel
  • the second terminal device determines the first SL DRX configuration information according to the auxiliary information, which can be understood as: the second terminal device determines the first SL DRX configuration information according to the auxiliary information.
  • the terminal device determines the time at which the first terminal device monitors the information sent by the second terminal device based on the time at which the first terminal device monitors the downlink information sent by the first access network device.
  • the second terminal device after receiving the auxiliary information, determines the first SL DRX configuration information by itself according to the auxiliary information.
  • the second terminal device after receiving the auxiliary information, sends the auxiliary information to the second access network device, and the second access network device determines the first SL DRX configuration information according to the auxiliary information, and the second access network device determines the first SL DRX configuration information according to the auxiliary information.
  • the second access network device is the access network device of the second terminal device; the second terminal device then receives the first SL DRX configuration information sent by the second access network device.
  • the second terminal device may report the currently selected SL synchronization source to the second access network device, so that the second access network device can correctly understand the SL timing between the first terminal device and the second terminal device;
  • the second terminal device may also send the unicast connection identifier corresponding to the first DRX configuration information to the second access network device.
  • the second terminal device sends the first SL DRX configuration information to the first terminal device.
  • the first terminal device receives the first SLDRX configuration information.
  • an SL unicast connection has been established between the first terminal device and the second terminal device.
  • the second terminal device may implement the interaction of the first SL DRX configuration information based on the SL RRC message.
  • the first terminal device may send configuration completion indication information to the second terminal device.
  • the first SL DRX configuration information is determined based on the auxiliary information, that is, the time when the second terminal device monitors the downlink information sent by the first access network device based on the first terminal device is based on the time when the first terminal device monitors the It is determined by the time of the information sent by the second terminal device. Therefore, it is beneficial to realize that the second terminal device monitors the time when the first terminal device monitors the downlink information sent by the first access network device and the first terminal device listens to the downlink information sent by the second terminal device.
  • the time of the information sent by the device is as consistent as possible, that is, overlapping as much as possible, so that the first terminal device can wake up at the same time to monitor the information sent by the first access network device and the information sent by the second terminal device, thereby saving the first terminal device. energy consumption.
  • the second terminal device determines the first SL based on the auxiliary information
  • the DRX configuration information fully refers to or considers the Uu DRX configuration information of the first terminal device, so that the time when the first terminal device monitors the second terminal device and the time when the access network device is monitored can be kept consistent as much as possible, thereby improving the efficiency of the first terminal device.
  • the power saving effect of the device can even make the power saving effect of the first terminal device the best.
  • the second terminal device determines the auxiliary information based on the paging DRX configuration information of the first terminal device.
  • the first SL DRX configuration information can fully refer to or consider the paging DRX configuration information of the first terminal device, so that the PF and/or PO of the first terminal device can be kept consistent with the time when the first terminal device monitors the second terminal device as much as possible, Further, the power saving effect of the first terminal device can be improved, and even the power saving effect of the first terminal device can be optimized.
  • the auxiliary information further includes the first bias indication information, the second bias indication information or the third bias indication information, so that the time indicated by the first SL DRX configuration information is the same as the time indicated in the first DRX configuration information.
  • the time of the first terminal device can be synchronized in the time domain, so that the time when the first terminal device monitors the second terminal device can be kept consistent with the time when the access network device is monitored, so that the power saving effect of the first terminal device can be improved.
  • the power saving effect of the first terminal device is optimal.
  • the auxiliary information sent by the first terminal device to the second terminal device may further include recommended configuration information (also referred to as preferred configuration information, preferred configuration information, recommended configuration information or preferred, etc.),
  • the recommended configuration information may include the SL activation duration and/or the recommended SL DRX cycle recommended by the first terminal device to the second terminal device.
  • the recommended configuration information included in the auxiliary information may be referred to as the first recommended configuration information, and the recommended SL activation duration in the first recommended configuration information is referred to as the first SL activation.
  • the duration, the SLDRX cycle recommended in the first recommended configuration information is called the first SLDRX cycle.
  • the first SL activation duration may cover the paging frame and/or paging occasion of the first terminal device in the time domain
  • the first SL DRX cycle may be an integer of the period of the paging occasion of the first terminal device times or the period of the paging occasion of the first terminal device may be an integer multiple of the first SL DRX period.
  • the recommended configuration information included in the auxiliary information may be referred to as the second recommended configuration information, and the recommended SL activation duration in the second recommended configuration information is referred to as the second SL activation duration.
  • the recommended SL DRX cycle in the second recommended configuration information is called the second SL DRX cycle.
  • the start time of the activation duration of the second SL may be aligned with the start time of the activation duration of the Uu interface of the first terminal device in the time domain, and the activation duration of the second SL may be less than or equal to the activation duration of the first terminal device.
  • the second SL DRX cycle may be an integer multiple of the Uu DRX cycle of the first terminal device or the Uu DRX cycle of the first terminal device may be an integer multiple of the second SL DRX cycle.
  • the auxiliary information sent by the first terminal device to the second terminal device includes recommended configuration information, and it is possible to further try to keep the time that the first terminal device monitors the second terminal device consistent with the time that the access network device monitors the access network device.
  • the power saving effect of the first terminal device can be improved, and even the power saving effect of the first terminal device can be optimized.
  • the first terminal device may send indication information to the second terminal device, where the indication information is used to indicate whether the SL DRX configuration information determined by the second terminal device for the first terminal device needs to be maintained by the first terminal device
  • the activation period of SL DRX is consistent with that of Uu DRX. Keeping the consistency of the activation period of the SL DRX and the activation period of the Uu DRX of the first terminal device can be understood as keeping the activation period of the SL DRX and the activation period of the Uu DRX overlapping in the time domain. Optionally, keeping the activation period of SL DRX and the activation period of Uu DRX overlapping in the time domain may be partially overlapping, or completely overlapping.
  • the first terminal device may send first indication information to the second terminal device, where the first indication information is used to indicate that the SL DRX configuration information determined by the second terminal device for the first terminal device needs to keep the SL DRX of the first terminal device Consistency of activation period and activation period of Uu DRX.
  • the first terminal device may send second indication information to the second terminal device, where the second indication information is used to indicate that the SL DRX configuration information determined by the second terminal device for the first terminal device does not need to maintain the SL of the first terminal device.
  • the consistency between the activation period of DRX and the activation period of Uu DRX, or the second indication information is used to instruct the second terminal device to maintain the SL DRX activation period of the first terminal device when determining the SL DRX configuration information for the first terminal device
  • the activation period of Uu DRX is staggered in time domain.
  • the first terminal device when the first terminal device can monitor the information from the first access network device and the information from the second terminal device at the same time, the first terminal device can send the first indication information to the second terminal device.
  • the first terminal device The indication information may include first capability indication information.
  • the first capability indication information indicates that the first terminal device can monitor information from the first access network device and from the second terminal device at the same time.
  • the second terminal device may determine that the SL DRX configuration information needs to maintain the consistency between the activation period of the SL DRX of the first terminal device and the activation period of the Uu DRX, And when determining the SL DRX configuration information, try to keep the time that the first terminal device monitors the second terminal device consistent with the time that the access network device monitors the access network device, so that the power saving effect of the first terminal device is the best.
  • the first terminal device may send the second indication information to the second terminal device.
  • the second indication information may include second capability indication information.
  • the second capability indication information indicates that the first terminal device cannot monitor the information from the first access network device and the second terminal device at the same time, or the second capability indication information indicates that the first terminal device cannot monitor the information from the first access network device and the second terminal device at the same time.
  • the terminal device can only receive information from one of the first access network device and the second terminal device at the same time.
  • the second terminal device can determine that the SL DRX configuration information does not need to keep the SL DRX activation period and Uu DRX activation period of the first terminal device.
  • the consistency of the activation period in other words, it can be determined that the SL DRX configuration information needs to keep the SL DRX activation period of the first terminal device and the Uu DRX activation period staggered in the time domain, and when determining the SL DRX configuration information, try to make The time when the first terminal device monitors the second terminal device is staggered from the time when the first terminal device monitors the access network device, so as to avoid data loss due to reception conflict, so as to ensure that the first terminal device can correctly receive the first access network device and the second terminal device. information sent by the device, thereby improving the communication reliability of the first terminal device.
  • the first terminal device when the first terminal device can monitor the information from the first access network device and the information from the second terminal device at the same time, the first terminal device can also send messages to the second terminal according to the relevant configuration information (for example, the user's configuration).
  • the device sends the second indication information instead of sending the first indication information.
  • the second terminal device after the second terminal device receives the second indication information, it can determine that the SLDRX configuration information does not need to maintain the consistency between the activation period of the SLDRX of the first terminal device and the activation period of the UuDRX, and perform corresponding operations.
  • the first terminal device may be pre-agreed that: by default, the first terminal device expects that the SLDRX configuration information determined by the second terminal device needs to keep the consistency between the activation period of SDL DRX of the first terminal device and the activation period of Uu DRX. In this case, when the first terminal device hopes that the SL DRX configuration information determined by the second terminal device needs to maintain the consistency between the activation period of the SL DRX of the first terminal device and the activation period of the Uu DRX, it may not send the first indication information .
  • the second terminal device may determine that the SL DRX configuration information needs to keep the activation period and Uu DRX of the SL DRX of the first terminal device. the consistency of the activation period, and take the appropriate action.
  • the second terminal device sends the second Instructions.
  • the first terminal device expects that the SL DRX configuration information determined by the second terminal device does not maintain the consistency between the activation period of the SL DRX of the first terminal device and the activation period of the Uu DRX. sex.
  • the first terminal device hopes that the SL DRX configuration information determined by the second terminal device does not maintain the consistency between the activation period of the SL DRX of the first terminal device and the activation period of the Uu DRX, it may not send the second indication information .
  • the second terminal device may determine that the SL DRX configuration information does not need to keep the activation period and Uu of the SL DRX of the first terminal device. Consistency of the activation period of DRX, and perform corresponding operations.
  • the first indication is sent. information.
  • the SL DRX configuration information determined by default by the second terminal device does not need to maintain the consistency between the activation period of the SL DRX of the first terminal device and the activation period of Uu DRX, that is, determining the SL DRX configuration information needs to maintain the SL DRX of the first terminal device.
  • the activation period of DRX and the activation period of Uu DRX are staggered in the time domain. In this case, when the first terminal device cannot monitor the information from the first access network device and the information from the second terminal device at the same time, the first terminal device does not need to send the first capability indication information to the second terminal device. In this way, even if the second terminal device does not receive the first capability indication information, the time for the first terminal device to monitor the second terminal device and the time for monitoring the access network device are staggered as far as possible.
  • an implementation manner in which the time when the first terminal device monitors the second terminal device and the time when it monitors the access network device is staggered is as follows: the first SL DRX configuration information determined by the second terminal device does not include the first SL The DRX timer, or the length of the first SL DRX timer in the first SL DRX configuration information is set to 0, and the first SL DRX timer includes a deactivation timer and a retransmission timer.
  • the first SL DRX configuration information determined by the second terminal device includes the configuration information of the first SL DRX timer, but if the activation period in the first DRX configuration information is encountered, stop the first SL DRX timing. device. Further, when the activation period in the first DRX configuration information ends, the first SLDRX timer is restarted.
  • the first SL DRX configuration information determined by the second terminal device includes the configuration information of the first SL DRX timer, and if an activation period in the first DRX configuration information is encountered, continue to run the first SL DRX timer. , but at this time, the first terminal device only monitors the information from the first access network device.
  • the first terminal device is in an idle or inactive state, and the first terminal device will configure the paging DRX based on the paging DRX configuration provided by the first access network device (for example, the serving base station of the first terminal device).
  • the information determines the PF and/or PO, and monitors the paging message on the PF and/or PO, that is, the Uu is in a awake state at the time corresponding to the PF and/or PO.
  • the method may include S301 to S305.
  • the first terminal device acquires paging DRX configuration information.
  • the first terminal device replies an acknowledgement message to the network device that sent the paging DRX configuration information.
  • the first terminal device when it is in a connected state, an idle state or an inactive state, it can acquire the paging DRX configuration information sent by the first access network device, and monitor the PDCCH of the first access network device.
  • the first terminal device moves into the coverage of the first access network device, and monitors the PDCCH of the first access network device.
  • the first terminal device obtains the paging DRX configuration information from the broadcast system information, and at this time, the first terminal device monitors the PDCCH of the network device in the coverage area.
  • the first terminal device may determine the PF and/or the PO according to the acquired paging DRX configuration information and the first terminal device identification.
  • the first terminal device determines the PF and/or PO according to the paging DRX configuration information.
  • the first terminal device may determine the PF and/or PO according to the received paging DRX configuration information and the identifier of the first terminal device.
  • the first terminal device sends auxiliary information to the second terminal device, and optionally, the second terminal device replies with a confirmation message to the first terminal device.
  • the auxiliary information sent by the first terminal device to the second terminal device may include first paging DRX configuration information and offset indication information, and the offset indication information in this embodiment includes first offset indication information or second offset indication information.
  • the first paging DRX configuration information indicates that the first terminal device monitors the paging frame and/or the paging time information of the paging occasion of the paging message from the first access network device.
  • the offset indication information represents offset information between the Uu downlink timing and the SL timing of the first terminal device.
  • the first paging DRX configuration information may include the PF and/or PO calculated by the first terminal device in S302 corresponding to the SFN and the slot for monitoring the paging message on the serving cell of the first terminal device. If the first terminal device directly sends the SFN and slot corresponding to the PF and/or PO on its own serving cell to the second terminal device, the timing of the serving cell of the first terminal device may be inconsistent with the timing of the serving cell of the second terminal device , in this case, the understanding of the activation period in the paging DRX configuration of the first terminal equipment by the second terminal equipment may be inconsistent with the time of the actual activation period in the paging DRX configuration of the first terminal equipment.
  • the first paging DRX configuration information includes, in addition to the SFN and slot corresponding to the PF and/or PO calculated by the first terminal device and corresponding to the serving cell of the first terminal device, the first offset indication information.
  • the first offset indication information includes the offset between the system frame number of the first terminal device and the straight frame number, the offset between the system frame subframe and the straight frame subframe of the first terminal device, and the system frame subframe.
  • the first paging DRX configuration information may include that the first terminal device converts the calculated PF and/or PO into DFN and slot aligned with the SL time domain. Considering the possibility that the Uu downlink timing and the SL timing of the first terminal device may not be aligned with the slot boundary, the first paging DRX configuration information further includes second offset indication information.
  • the second terminal device does not know the Uu timing of the first terminal device, but the SL timing between the first terminal device and the second terminal device is known to each other, the calculated value of the first terminal device is calculated by the first terminal device.
  • the PF and/or PO are switched to the SL timing known by both terminal devices, enabling the first terminal device and the second terminal device to reach a consensus.
  • the second offset indication information includes the offset between the time slot of the system frame subframe and the time slot of the direct frame subframe or the subcarrier spacing of the carrier used by the first terminal device to communicate with the first access network device .
  • the first paging DRX configuration information may further include parameters used when the first terminal device calculates PF and/or PO.
  • the parameters used by the first terminal device to calculate the PF and/or PO include the identity of the first terminal device (for example, 5G-S-TMSI), the paging cycle of the first terminal device, the number of paging frames in the paging cycle, The number of paging occasions in the paging frame or the offset of the paging frame in the paging cycle, etc.
  • the auxiliary information may also include a period for paging the DRX.
  • the second terminal device determines the first SL DRX configuration information according to the auxiliary information.
  • the second terminal device sends the first SL DRX configuration information to the first terminal device, optionally, the first terminal device sends a configuration complete message to the second terminal device.
  • the first terminal device after receiving the paging DRX configuration information sent by the first access network device, the first terminal device determines auxiliary information according to the first paging DRX configuration information and offset indication information, and uses the auxiliary information Sent to the second terminal device, the second terminal device can comprehensively consider the first paging configured by the first terminal device when determining the first SL DRX configuration information for the SL communication between the first terminal device and the second terminal device.
  • the DRX configuration information and the offset indication information enable the finally determined first SL DRX configuration information and the activation period time of the first DRX configuration information to be consistent in the time domain as much as possible, thereby further improving the power saving effect of the first terminal device.
  • the first terminal device is in a connected state, and the first access network device (for example, the serving base station of the first terminal device) configures the Uu DRX configuration information for the first terminal device.
  • the method may include S401 to S404.
  • the first terminal device acquires the Uu DRX configuration information sent by the first access network device.
  • the first terminal device performs configuration and replies to the first access network device with a configuration complete message.
  • the Uu DRX configuration information sent by the first access network device can be obtained.
  • the Uu DRX configuration information is used to instruct the first terminal device to monitor physical layer control messages and/or resource scheduling information from the first access network device.
  • the first access network device can decide to configure the Uu DRX configuration information for the first terminal device by itself based on the implementation, or can configure the Uu DRX configuration information for the first terminal device based on the request of the first terminal device.
  • the first terminal device may be configured with dual connections, that is, the first terminal device will obtain two sets of Uu DRX configuration information from the first access network device, and one set is the main base station configured for the first terminal device.
  • the base station Uu DRX configuration information one set is the secondary base station Uu DRX configuration information configured by the secondary base station for the first terminal device.
  • the first access network device may support both high-frequency cells and low-frequency cells
  • two sets of Uu DRX configuration information will be configured for the first terminal device, one set is the low-frequency Uu DRX configuration information for low-frequency cells, and one set is the low-frequency Uu DRX configuration information for the low-frequency cell.
  • Set is high frequency Uu DRX configuration information for high frequency cells.
  • the first terminal device obtains two sets of Uu DRX configuration information, since the Uu timing in each set of Uu DRX configuration information may be different, the offset indication information of each set of Uu DRX configuration information is also different. . That is to say, when the first terminal device has two sets of Uu DRX configuration information, correspondingly, the first terminal device has two sets of offset indication information.
  • this application only takes a set of Uu DRX configuration information as an example for description.
  • the processing method for each set of Uu DRX configuration information is the same.
  • the first terminal device sends auxiliary information to the second terminal device, and optionally, the second terminal device sends a confirmation message to the first terminal device.
  • the first terminal device will determine the exact time of the activation period and the time of the discontinuous reception opportunity based on the first DRX configuration information and the Uu downlink timing (DL timing) provided by the first access network device . If the auxiliary information determined by the first terminal device only includes the first DRX configuration information configured for it by the first access network device, the second terminal device will understand the first DRX configuration information of the first terminal device according to its own Uu downlink timing , and the Uu downlink timing of the first terminal device and the second terminal device may be different, then the time of the activation period and the time of the discontinuous reception opportunity determined by the first terminal device and the second terminal device will be reflected on the SL differently. .
  • the Uu downlink timings of the first terminal equipment and the second terminal equipment may be different, it is difficult for the first SL DRX configuration determined by the second terminal equipment to be in the time domain with the first DRX configuration of the first terminal equipment achieve synchronization.
  • FIG. 5 is a schematic diagram of a situation in which the first SL DRX configuration information is unreasonable due to different Uu downlink timings of the first terminal device and the second terminal device.
  • the first terminal equipment reflects the time on the SL according to the Uu DRX configuration information sent by the first access network equipment and the time of the activation period determined by the Uu downlink timing, and the second terminal equipment provides the time according to the first terminal equipment.
  • the Uu DRX configuration information and the time of the activation period determined by the Uu downlink timing are different from the time reflected on the SL. That is, the second terminal device thinks that the first terminal device is in the discontinuous reception opportunity at a certain moment, but actually the first terminal device is in the active period at that moment.
  • the auxiliary information sent by the first terminal device to the second terminal device includes first Uu DRX configuration information and first offset indication information.
  • the first offset indication information may include the offset of SFN and DFN (SFN_DFN_Offset).
  • the offset of SFN and DFN may be SFN-DFN or DFN-SFN.
  • the offset of SFN and DFN can help the second terminal device to know The SFN of the first terminal device and the offset of the DFN between the first terminal device and the second terminal device.
  • the first offset indication information may include a boundary offset.
  • SFN_DFN_Offset can only help the second terminal device to align the frame numbers, but the boundary may still be misaligned, so the boundary offset can be introduced through the first offset indication information.
  • the boundary offset may include the offset between the system frame subframe and the straight frame subframe of the first terminal device and the difference between the time slot (slot) of the system frame subframe and the time slot of the straight frame subframe. , and further align frame boundaries, subframe boundaries, and time slot boundaries.
  • the first offset indication information may further include the subcarrier spacing of the carrier used when the first terminal device communicates with the first access network device.
  • the first terminal device can communicate with the first access network device.
  • the sub-carrier spacing of the carrier used when sending is sent to the second terminal device.
  • the auxiliary information sent by the first terminal device to the second terminal device includes second Uu DRX configuration information.
  • the second Uu DRX configuration information is Uu DRX configuration information obtained by the first terminal device adjusting the parameter values in the first Uu DRX configuration information based on the first offset indication information.
  • the above-mentioned SFN_DFN_Offset and boundary offset may be determined by the first terminal device, or may be determined by the first access network device.
  • the first terminal device knows the SL timing and also knows the Uu downlink timing of the first access network device, so the first terminal device can determine the SFN_DFN_Offset and the boundary offset by itself.
  • the first terminal device needs to send the SL synchronization source with the second terminal device to the first access network device, and at S401 , the first access network device sends SFN_DFN_Offset and boundary offset information while sending the Uu DRX configuration information to the first terminal device.
  • the SL timing mentioned in this application may be understood as the SL timing of the first terminal device, and may also be understood as the SL timing of the second terminal device.
  • the second terminal device determines the first SL DRX configuration information according to the auxiliary information.
  • the second terminal device sends the first SL DRX configuration information to the first terminal device, optionally, the first terminal device sends a configuration complete message to the second terminal device.
  • the first terminal device after receiving the Uu DRX configuration information sent by the first access network device, the first terminal device determines auxiliary information according to the first Uu DRX configuration information and offset indication information, and the auxiliary information may include the first The Uu DRX configuration information and the first bias indication information, or the second Uu DRX configuration information obtained by adjusting the parameters in the first Uu DRX configuration information according to the first bias indication information, the first terminal device sends the auxiliary information
  • the activation period time of the first SL DRX configuration information and the first DRX configuration information determined by the second terminal device according to the auxiliary information can be kept as consistent as possible in the time domain, and the saving time of the first terminal device is further improved. Electric effect.
  • the first terminal device has at least two sets of receiving devices or the first terminal device has only one set of receiving devices, but only when the set of receiving devices can support a sufficiently large bandwidth, the first terminal device can simultaneously monitor incoming and outgoing data from the first access network device and the first terminal device.
  • the signal of the second terminal device for example, when the bandwidth supported by the receiving device of the first terminal device is greater than the difference between the frequency point of Uu DL and the SL frequency point of the first terminal device, the first terminal device can simultaneously monitor the signal from the first terminal device.
  • the signal of the network access device and the second terminal device for example, when the bandwidth supported by the receiving device of the first terminal device is greater than the difference between the frequency point of Uu DL and the SL frequency point of the first terminal device.
  • the first terminal device may have only one set of receiving devices and the set of receiving devices can support a relatively small bandwidth, this means that the first terminal device cannot monitor signals from the first access network device and the second terminal device at the same time.
  • the second terminal device when determining the first SL DRX configuration information, can stagger the activation period in the SL DRX configuration information and the activation period in the first DRX configuration information in the time domain, so that the first terminal device Only then can signals from the first access network device and the second terminal device be received completely.
  • the first terminal device needs to send indication information to the second terminal device, where the indication information is used to indicate whether the first terminal device monitors information from the first access network device and the second terminal device at the same time.
  • the embodiment shown in FIG. 6 is an application scenario in which the receiving capability of the first terminal device is considered.
  • the method may include S601 to S603.
  • the first terminal device sends auxiliary information and indication information to the second terminal device, optionally, the second terminal device feeds back a confirmation message to the first terminal device.
  • the indication information sent by the first terminal device to the second terminal device may include first indication information or second indication information, the first indication information may include first capability indication information, and the second indication information may include second capability indication information. Instructions.
  • the first capability indication information indicates that the first terminal device can monitor information from the first access network device and the second terminal device at the same time; the second capability indication information indicates that the first terminal device can only monitor information from the first access network device at the same time.
  • the network access device can only monitor the information from the second terminal device.
  • the first terminal device may send auxiliary information and indication information to the second terminal device at the same time.
  • the first terminal device may send the auxiliary information and the indication information to the second terminal device respectively.
  • the first terminal device first sends the indication information to the second terminal device, and then sends the auxiliary information to the second terminal device.
  • the second terminal device needs to determine whether to provide the first terminal device with the first SL DRX configuration information consistent with the activation period in the first DRX configuration information, or whether to provide the first SL DRX configuration information consistent with the activation period in the first DRX configuration information according to the previously received indication information
  • the second terminal device determines the first SL DRX configuration information according to the auxiliary information and the indication information.
  • the second terminal device can directly determine the first SL DRX configuration information according to the auxiliary information and the indication information, or can send the auxiliary information and the indication information to the second access network device, and the second access network device can determine the first SL DRX configuration information.
  • the situation in which the second terminal device directly determines the first SL DRX configuration information according to the auxiliary information and the indication information is introduced.
  • the second terminal device determines the first SL DRX configuration information according to the auxiliary information, so that the second terminal device determines the first SL DRX configuration information according to the auxiliary information.
  • the activation period of the first SL DRX configuration information determined by the information and the activation period of the first DRX configuration information can be kept as consistent as possible in the time domain, which further improves the power saving effect of the first terminal device.
  • the first SL DRX timer can enable the first terminal device to monitor the information from the second terminal device in the time period outside the active period, for example, the first SL DRX timer can include an inactive timer (inactive timer ) and a retransmission timer.
  • FIG. 7 is a schematic diagram of a situation of information reception collision due to a deactivation timer.
  • the first terminal device when the indication information indicates that the first terminal device can only monitor information from the first access network device or can only monitor information from the second terminal device at the same time, due to the existence of the deactivation timer, the first terminal device It is possible to monitor the information from the second terminal device outside the activation period of the first SL DRX configuration information. If it is in the activation period of the first DRX configuration information at this time, the first terminal device is monitoring the information from the first access network device. information, which will cause the first terminal device to fail to completely monitor the information from the first access network device and the second terminal device or cause information congestion.
  • the second terminal device determines the first SL DRX configuration information according to the auxiliary information and the indication information, it can time the first SL DRX in the first SL DRX configuration information. device to set.
  • the first SL determined by the second terminal device The configuration information of the first SL DRX timer is not provided in the DRX configuration information, or the length of the first SL DRX timer is all set to 0.
  • the first terminal device determined by the second terminal device includes the configuration information of the first SL DRX timer, but if the activation period in the first DRX configuration information is encountered, the first SL DRX timer is stopped.
  • the first terminal device determined by the second terminal device includes the configuration information of the first SL DRX timer. If the activation period in the first DRX configuration information is encountered, the first SL DRX timer will continue to run, but at this time, the first terminal device only listens to the first SL DRX timer. Information about the access network equipment.
  • the process for the second access network device to determine the first SL DRX configuration information according to the auxiliary information and the indication information may refer to the process for the second terminal device to determine the first SL DRX configuration information according to the auxiliary information and the indication information.
  • the second terminal device may report the currently selected SL synchronization source to the second access network device, so that the second access network device can correctly understand the SL timing between the first terminal device and the second terminal device;
  • the second terminal device may also send the unicast connection identifier corresponding to the first DRX configuration information to the second access network device.
  • the second access network device sends the determined first SL DRX configuration information to the second terminal device.
  • monitoring of the information from the second terminal device by the first terminal device may be understood as the monitoring of the physical sidelink control channel (PSCCH) by the first terminal device on the PC5 interface.
  • monitoring the information from the first access network device by the first terminal device may be understood as monitoring the PDCCH of the Uu interface.
  • the second terminal device sends the first SL DRX configuration information to the first terminal device, optionally, the first terminal device sends a configuration complete message to the second terminal device.
  • the first terminal device in addition to sending auxiliary information to the second terminal device, the first terminal device also provides indication information to the second terminal device, which is used to indicate whether the first terminal device can simultaneously monitor the access from the first terminal device. information of the network device and the second terminal device.
  • the second terminal device determines the first SL DRX configuration information according to the acquired auxiliary information and indication information, and can only monitor the information from the first access network device or the second terminal device at the same time for the first terminal device
  • the first SL DRX timer is set to avoid data loss due to information receiving conflicts, so that the first terminal device can completely monitor the data from the first access network device and the third Two terminal equipment information.
  • the first terminal device recommends configuration information for the second terminal device.
  • the method may include S801 to S804.
  • the first terminal device acquires the first DRX configuration information sent by the first access network device.
  • the first terminal device performs the configuration and returns a configuration complete message to the first access network device.
  • the first terminal device sends auxiliary information and indication information to the second terminal device, optionally, the second terminal device sends a confirmation message to the first terminal device.
  • the auxiliary information sent by the first terminal device to the second terminal device may include first DRX configuration information, offset indication information, and recommended configuration information.
  • the recommended configuration information may include first recommended configuration information and second recommended configuration information, where the first recommended configuration information is the recommended configuration information determined by the first terminal device according to the acquired paging DRX configuration and the deviation between the Uu downlink timing and the SL timing.
  • the second recommended configuration information is the recommended configuration information determined by the first terminal device according to the obtained Uu DRX configuration and the deviation between the Uu downlink timing and the SL timing.
  • the first recommended configuration information includes the first SL activation duration and/or the first SL DRX cycle recommended by the first terminal device.
  • the first SL activation duration covers the paging frame and/or paging occasion of the first terminal device in the time domain
  • the first SL DRX cycle is an integer multiple of the cycle of the paging occasion of the first terminal device or the first terminal device
  • the period of the paging occasion of the device is an integer multiple of the first SL DRX period.
  • FIG. 9 is a schematic diagram of the first recommended configuration information constructed based on the paging DRX configuration information.
  • the second recommended configuration information includes the second SL activation duration and/or the second SL DRX cycle recommended by the first terminal device.
  • the start time of the activation duration of the second SL is aligned with the start time of the activation duration of the Uu interface of the first terminal device in the time domain, and the activation duration of the second SL is less than or equal to the activation duration of the Uu interface of the first terminal device.
  • the second SL DRX cycle is an integer multiple of the Uu DRX cycle of the first terminal device or the Uu DRX cycle of the first terminal device is an integer multiple of the second SL DRX cycle.
  • Fig. 10 is a logical schematic diagram of the second recommended configuration information constructed based on the Uu DRX configuration information.
  • the second terminal device determines the first SL DRX configuration information according to the auxiliary information.
  • the second terminal device determines the first SL DRX configuration information according to the received auxiliary information, it can use the recommended configuration information in the auxiliary information as reference information, and optimize the determined first SL DRX configuration information.
  • the second terminal device sends the first SL DRX configuration information to the first terminal device, optionally, the first terminal device sends a configuration complete message to the second terminal device.
  • the auxiliary information sent by the first terminal device to the second terminal device further includes recommended configuration information, and when the second terminal device determines the first SL DRX configuration information according to the received auxiliary information, the auxiliary information can be
  • the recommended configuration information in the device is used as reference information, and the determined first SL DRX configuration information is optimized, so that the first SL DRX configuration information determined by the second terminal device is more reasonable, and the energy saving effect of the first terminal device is further improved.
  • FIG. 11 is a schematic flowchart of a communication method applied to a DRX mechanism according to still another embodiment of the present application. As shown in FIG. 11 , the method may include S1101 to S1106 .
  • the first terminal device acquires the first DRX configuration information sent by the first access network device.
  • the first terminal device performs the configuration and returns a configuration complete message to the first access network device.
  • the first terminal device sends auxiliary information and indication information to the second terminal device, optionally, the second terminal device sends a confirmation message to the first terminal device.
  • the second terminal device sends the auxiliary information and the indication information to the second access network device, optionally, the second access network device sends a confirmation message to the second terminal device.
  • the second terminal device when the second terminal device sends the received first DRX configuration information to the second access network device, it also needs to indicate the unicast connection identifier corresponding to the first DRX configuration information.
  • the second terminal device when the second terminal device sends the received first DRX configuration information to the second access network device, it may report the currently selected SL synchronization source to the second access network device, so that the second access network device can The SL timing between the first terminal device and the second terminal device can be properly understood.
  • the second access network device determines the first SLDRX configuration information according to the auxiliary information and the indication information.
  • the second access network device sends the first SLDRX configuration information to the second terminal device, optionally, the second terminal device sends an acknowledgement message to the second access network device.
  • the second access network device After determining the first SL DRX configuration information according to the received first DRX configuration information, the second access network device sends the first SL DRX configuration information to the second terminal device.
  • the second access network device when the second access network device sends the first SL DRX configuration information to the second terminal device, it may carry the corresponding unicast connection identifier.
  • the second terminal device sends the first SLDRX configuration information to the first terminal device, optionally, the first terminal device sends a confirmation message to the second terminal device.
  • FIG. 12 is a schematic structural diagram of a communication apparatus applied to a DRX mechanism according to an embodiment of the present application.
  • the apparatus 1200 may include an obtaining module 1201 , a sending module 1202 and a receiving module 1203 .
  • the apparatus 1200 may be used to implement the operations implemented by the first terminal device in FIG. 2 to FIG. 4 , FIG. 6 , FIG. 8 and FIG. 11 .
  • the apparatus 1200 may be used to implement the method shown in FIG. 2 above.
  • the acquiring module 1201 is used to implement S201
  • the sending module 1202 is used to implement S202
  • the receiving module 1203 is used to implement S204.
  • the apparatus 1200 may be used to implement the method shown in FIG. 3 above.
  • the acquiring module 1201 is used to implement S301
  • the sending module 1202 is used to implement S303
  • the receiving module 1203 is used to implement S305.
  • the apparatus 1200 may be used to implement the method shown in FIG. 4 above.
  • the acquiring module 1201 is used to implement S401
  • the sending module 1202 is used to implement S402
  • the receiving module 1203 is used to implement S404.
  • the apparatus 1200 may be used to implement the method shown in FIG. 6 above.
  • the sending module 1202 is used to implement S601
  • the receiving module 1203 is used to implement S603.
  • the apparatus 1200 may be used to implement the method shown in FIG. 8 above.
  • the acquiring module 1201 is used to implement S801
  • the sending module 1202 is used to implement S802
  • the receiving module 1203 is used to implement S804.
  • the apparatus 1200 may be used to implement the method shown in FIG. 11 above.
  • the acquiring module 1201 is used to implement S1101
  • the sending module 1202 is used to implement S1102
  • the receiving module 1203 is used to implement S1106.
  • FIG. 13 is a schematic structural diagram of a communication apparatus applied to a DRX mechanism according to another embodiment of the present application.
  • the apparatus 1300 may include a receiving module 1301 , a processing module 1302 and a sending module 1303 .
  • the apparatus 1300 may be used to implement the operations implemented by the second terminal device in FIG. 2 to FIG. 4 , FIG. 6 , FIG. 8 and FIG. 11 .
  • the apparatus 1300 may be used to implement the method shown in FIG. 2 above.
  • the receiving module 1301 is used to implement S202
  • the processing module 1302 is used to implement S203
  • the sending module 1303 is used to implement S204.
  • the apparatus 1300 may be used to implement the method shown in FIG. 3 above.
  • the receiving module 1301 is used to implement S303
  • the processing module 1302 is used to implement S304
  • the sending module 1303 is used to implement S305.
  • the apparatus 1300 may be used to implement the method shown in FIG. 4 above.
  • the receiving module 1301 is used to implement S402
  • the processing module 1302 is used to implement S403
  • the sending module 1303 is used to implement S404.
  • the apparatus 1300 may be used to implement the method shown in FIG. 6 above.
  • the receiving module 1301 is used to implement S601
  • the processing module 1302 is used to implement S602
  • the sending module 1303 is used to implement S603.
  • the apparatus 1300 may be used to implement the method shown in FIG. 8 above.
  • the receiving module 1301 is used to implement S802
  • the processing module 1302 is used to implement S803
  • the sending module 1303 is used to implement S804.
  • the apparatus 1300 may be used to implement the method shown in FIG. 11 above.
  • the receiving module 1301 is used to implement S1102 and S1105, and the transmitting module 1303 is used to implement S1104 and S1106.
  • FIG. 14 is a schematic structural diagram of a communication apparatus applied to a DRX mechanism according to still another embodiment of the present application.
  • the apparatus 1400 shown in FIG. 14 can be used to perform the method described in any one of the foregoing embodiments.
  • the communication apparatus 1400 includes a processor 1401 and an interface circuit 1403 .
  • the processor 1401 and the interface circuit 1403 are coupled to each other.
  • the interface circuit 1403 may be a transceiver or an input/output interface.
  • the communication device 1400 may further include a memory 1402 for storing instructions executed by the processor 1401 or input data required by the processor 1401 to execute the instructions or data generated after the processor 1401 executes the instructions.
  • the processor 1401 is used to implement the functions of the above-mentioned processing module 1302
  • the interface circuit 1403 is used to implement the above-mentioned sending module 1202 , 1303 and the functions of the receiving modules 1203 and 1301.
  • the first terminal device chip When the above communication device is a chip applied to the first terminal device, the first terminal device chip implements the function of the first terminal device in the above method embodiment.
  • the first terminal device chip receives information from other modules (such as radio frequency modules or antennas) in the first terminal device, and the information is sent to the first terminal device by the network device or the second terminal device; or, the first terminal device
  • the chip sends information to other modules (such as a radio frequency module or an antenna) in the first terminal device, and the information is sent by the first terminal device to the network device or the second terminal device.
  • the second terminal device chip implements the function of the second terminal device in the above method embodiment.
  • the second terminal device chip receives information from other modules (such as radio frequency modules or antennas) in the second terminal device, and the information is sent by the network device or the first terminal device to the second terminal device; or, the second terminal device
  • the chip sends information to other modules (such as a radio frequency module or an antenna) in the second terminal device, and the information is sent by the second terminal device to the network device or the first terminal device.
  • the network device chip When the communication device is a chip applied to a network device, the network device chip implements the functions of the network device in the foregoing method embodiments.
  • the network device chip receives information from other modules (such as radio frequency modules or antennas) in the network device, and the information is sent to the network device by the first terminal device or the second terminal device; or, the network device chip sends information to the network device.
  • Other modules such as radio frequency modules or antennas
  • send information send information, and the information is sent by the network device to the first terminal device or the second terminal device.
  • the memory 1401 may be a read only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM).
  • the memory 1401 may store programs, and when the programs stored in the memory 1401 are executed by the processor 1402 , the processor 1402 may be used to perform various steps of the methods shown in FIGS. 2 to 4 , 6 , 8 and 11 .
  • the processor 1402 can use a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for executing related programs to The communication method applied to the DRX mechanism according to the method embodiment of the present application is implemented.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • the processor 1402 can also be an integrated circuit chip with signal processing capability. In the implementation process, each step of the method of the various embodiments of the present application may be completed by an integrated logic circuit of hardware in the processor 1402 or an instruction in the form of software.
  • the above-mentioned processor 1402 can also be a general-purpose processor, a digital signal processor (digital signal processing, DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, Discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory 1401, and the processor 1402 reads the information in the memory 1401, and implements the functions required by each method in the embodiments of the present application in combination with its hardware. For example, FIG. 2 to FIG. 4, FIG. 6, and FIG. and the various steps/functions of the embodiment shown in FIG. 11 .
  • the communication interface 1403 can use, but is not limited to, a transceiver such as a transceiver to implement communication between the device 1400 and other devices or a communication network.
  • a transceiver such as a transceiver to implement communication between the device 1400 and other devices or a communication network.
  • the bus 1404 may include a pathway for communicating information between the various components of the apparatus 1400 (eg, the memory 1401, the processor 1402, the communication interface 1403).
  • the apparatus 1400 shown in this embodiment of the present application may be an electronic device, or may also be a chip configured in the electronic device.
  • the processor in the embodiment of the present application may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application-specific integrated circuits (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory Fetch memory
  • direct memory bus random access memory direct rambus RAM, DR RAM
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-described embodiments 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 or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • 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 downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server or data center by wire (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that contains one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • At least one means one or more, and “plurality” means two or more.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • at least one item (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple .
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk and other media that can store program codes.

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

Abstract

L'invention concerne un procédé de communication appliqué à un mécanisme de réception discontinue, ainsi qu'un appareil associé. Le procédé comprend les étapes suivantes : un premier dispositif terminal acquiert des premières informations de configuration DRX, les premières informations de configuration DRX servant à demander au premier dispositif terminal de communiquer avec un premier dispositif de réseau d'accès au moyen d'une interface Uu ; envoyer des informations auxiliaires à un second dispositif terminal, les informations auxiliaires étant déterminées d'après les premières informations de configuration DRX, et les informations auxiliaires étant utilisées pour aider le second dispositif terminal à déterminer des premières informations de configuration DRX SL utilisées lorsque le premier dispositif terminal communique avec le second dispositif terminal ; et recevoir les premières informations de configuration DRX SL provenant du second dispositif de terminal.
PCT/CN2021/071933 2021-01-14 2021-01-14 Procédé de communication appliqué à un mécanisme de réception discontinue, et appareil associé WO2022151277A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2021/071933 WO2022151277A1 (fr) 2021-01-14 2021-01-14 Procédé de communication appliqué à un mécanisme de réception discontinue, et appareil associé
CN202180084370.6A CN116602049A (zh) 2021-01-14 2021-01-14 应用于非连续接收机制的通信方法及相关装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/071933 WO2022151277A1 (fr) 2021-01-14 2021-01-14 Procédé de communication appliqué à un mécanisme de réception discontinue, et appareil associé

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Citations (3)

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Publication number Priority date Publication date Assignee Title
CN111556590A (zh) * 2020-04-13 2020-08-18 中国信息通信研究院 一种边链路非连续接收方法
CN111670603A (zh) * 2020-04-13 2020-09-15 北京小米移动软件有限公司 监听信道的方法、装置、用户设备及存储介质
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CN111800894A (zh) * 2019-08-22 2020-10-20 维沃移动通信有限公司 sidelink的DRX配置方法和设备
CN111556590A (zh) * 2020-04-13 2020-08-18 中国信息通信研究院 一种边链路非连续接收方法
CN111670603A (zh) * 2020-04-13 2020-09-15 北京小米移动软件有限公司 监听信道的方法、装置、用户设备及存储介质

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