WO2022022383A1 - 链路切换指示方法、装置、存储介质、芯片及相关设备 - Google Patents

链路切换指示方法、装置、存储介质、芯片及相关设备 Download PDF

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Publication number
WO2022022383A1
WO2022022383A1 PCT/CN2021/107912 CN2021107912W WO2022022383A1 WO 2022022383 A1 WO2022022383 A1 WO 2022022383A1 CN 2021107912 W CN2021107912 W CN 2021107912W WO 2022022383 A1 WO2022022383 A1 WO 2022022383A1
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WIPO (PCT)
Prior art keywords
user equipment
indication information
link
network device
instruct
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PCT/CN2021/107912
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English (en)
French (fr)
Inventor
徐敏
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展讯通信（上海）有限公司
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Publication of WO2022022383A1 publication Critical patent/WO2022022383A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/165—Performing reselection for specific purposes for reducing network power consumption

Definitions

  • the present invention relates to the field of communications, and in particular, to a link switching instruction method, device, storage medium, chip and related equipment.
  • the communication mode between the user equipment and the user equipment includes: a direct link communication mode and a Uu link (Uu Path) communication mode.
  • the direct link communication mode refers to the establishment of a direct link between user equipment, such as: PC5 link (PC5 Path) for communication, and the services transmitted on the direct link are mainly ProSe (Proximity-Based Services, close to Basic services);
  • the Uu link communication mode refers to the communication between user equipments forwarded through the network, and the corresponding communication link is the Uu link.
  • the user equipment switches the link according to the policy for data transmission, and the original link will be deleted; when the user equipment communicates in the direct link communication mode, if the Uu link needs to be restored to transmit services, for example, due to the PC5 link If the signal of the channel connection deteriorates or RLF (Radio Link Failure, radio link failure) occurs, the Uu link needs to be restored to transmit the service, and the CN (Core Network, core network) needs to re-establish the Uu link connection for transmitting the service. Longer delay reduces the real-time performance of data transmission.
  • RLF Radio Link Failure, radio link failure
  • the embodiments of the present application provide a link switching instruction method, device, storage medium, chip and related equipment, which can quickly restore the Uu link connection and reduce the delay of data transmission between user equipments.
  • an embodiment of the present application provides a link switching indication method, the method includes:
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context of the user equipment.
  • the embodiment of the present application further provides a link switching indication method, the method includes:
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context context of the user equipment, then according to the first indication information, retain the transmission service configuration and/or the user equipment of the user equipment. or the context Context of the user equipment.
  • an embodiment of the present application provides a link switching instructing device, where the link switching instructing device includes: a storage device and a processor,
  • the storage device for storing program codes
  • the processor when invoking the stored code, is configured to execute the link switching instruction method according to the first aspect.
  • an embodiment of the present application further provides a link switching instructing device, where the link switching instructing device includes: a storage device and a processor,
  • the storage device for storing program codes
  • the processor when invoking the stored code, is configured to execute the link switching instruction method according to the second aspect.
  • an embodiment of the present application provides a link switching instructing device, where the link switching instructing device includes:
  • a sending module configured to send the first indication information to the network device
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context of the user equipment.
  • an embodiment of the present application further provides a link switching instructing device, where the link switching instructing device includes:
  • a receiving module configured to receive the first indication information
  • a reservation module configured to, if the first indication information is used to instruct the network device to preserve the transmission service configuration of the user equipment and/or the context Context of the user equipment, reserve the user equipment according to the first indication information The service configuration and/or the context Context of the user equipment is transmitted.
  • an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and the computer program causes a computer to execute the link switching instruction method described in the first aspect.
  • an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium is configured to store a computer program, and the computer program enables a computer to execute the link switching instruction method described in the second aspect.
  • an embodiment of the present application provides a chip, where the chip is configured to output first indication information, so as to send the first indication information to a network device;
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context of the user equipment.
  • an embodiment of the present application further provides a chip, where the chip is configured to receive first indication information; if the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the The context Context of the user equipment, then according to the first indication information, the transmission service configuration of the user equipment and/or the context Context of the user equipment are reserved.
  • an embodiment of the present application provides a modular device, the modular device includes an output interface, wherein:
  • the output interface configured to output the first indication information, so as to send the first indication information to the network device;
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context of the user equipment.
  • the embodiments of the present application also provide a modular device, the modular device includes an input interface and a chip module, wherein:
  • the input interface for receiving first indication information
  • the chip module is configured to, if the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context context of the user equipment, retain the The transmission service configuration of the user equipment and/or the context of the user equipment.
  • FIG. 1 is a scene diagram of a link switching indication method provided by an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a link switching indication method provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of an interaction flow of a link switching indication method provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a link switching indication device provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a link switching indication device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another link switching indication device provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a modular device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of another module device according to an embodiment of the present application.
  • FIG. 1 is a scene diagram of a link switching indication method provided by an embodiment of the present application.
  • the first user equipment 101 and the second user equipment 103 first perform service transmission through the first network device 102, that is, the first user equipment 101 and the second user equipment 103 Service transmission is performed between two user equipments 103 through a Uu link; if the first user equipment 101 establishes a PC5 link with the second user equipment 103, that is, a PC5 link is used between the first user equipment 101 and the second user equipment 103 direct communication for service transmission, the first user equipment 101 sends first indication information to the first network equipment 102 before or after or at the same time as the successful establishment of the PC5 link to instruct the network equipment to retain the user equipment's transmission service configuration and /or Context of the user equipment, wherein the user equipment includes the first user equipment 101 and/or the second user equipment 103; further, the Uu link needs to be restored between the first user equipment 101
  • the first user equipment 101 communicates with the network device through the Uu link, and the aforementioned operation of switching the link is to switch the service that can be transmitted through the PC5 interface from the Uu link to the PC5 link for transmission.
  • the first user equipment 101 can retain the Uu link with the network device, but the reserved Uu link is not used to transmit the aforementioned switched
  • the service transmitted by the link can be transmitted through the PC5 link, but other transmission services are performed, such as: the transmission service that the first user equipment 101 communicates with other external networks through network equipment, and the communication between the first user equipment 101 and other user equipment.
  • the first user equipment 101 may also retain the service configuration that can be transmitted with the network device through the PC5 interface, but the Uu link will be deleted. If it is necessary to retransmit the aforementioned service switched to the PC5 link transmission on the Uu link, it is necessary to restore the transmission for the aforementioned switching to the PC5 link transmission according to the reserved transmission service configuration of the user equipment and/or the Context of the user equipment.
  • the Uu link connection of the service is necessary to restore the transmission for the aforementioned switching to the PC5 link transmission according to the reserved transmission service configuration of the user equipment and/or the Context of the user equipment.
  • the first indication information can also be used to indicate that the user equipment has established a PC5 link, that is, to inform the network device that the user equipment has established a PC5 link; and/or: the first indication information is also used to instruct the user equipment to switch the chain route, and the service transmission of the user equipment is not interrupted, that is, the network equipment is notified that the user equipment switches the link and the service transmission of the user equipment is not interrupted; and/or: the first indication information is further used to instruct the network equipment to The user equipment switches to Inactive (inactive state).
  • Inactive user equipment does not need to notify network equipment when it moves in a certain RNA (RAN Notification Area, radio access network notification area), and the user equipment will retain certain configurations, such as: at present, the user equipment will retain PDCP (Packet Data Convergence Protocol, packet Configurations such as Data Convergence Protocol) and SDAP (Service Data Adaptation Protocol), as well as some lower-layer (lower-layer) configurations of the original Pcell (Primary Cell, primary cell), if the network needs to schedule user equipment or user equipment has If data needs to be sent, the user equipment needs to be migrated to Connect (connected state), and the reserved configuration is restored for data transmission.
  • PDCP Packet Data Convergence Protocol
  • SDAP Service Data Adaptation Protocol
  • the state of one user equipment is controlled by only one network device, that is, there is only one primary base station of the user equipment.
  • the network device retains the transmission service configuration of the user equipment and/or the context of the user equipment, including: the first network device 102 retains the transmission service configuration and/or the context of the first user equipment 101 and/or the second user equipment 103 .
  • the first network device 102 learns the first user equipment according to the first indication information 101 and/or the second user equipment 103 has established a PC5 link.
  • the first network device 102 In the scenario where the states of the two user equipments are controlled by the same network device, if the first indication information is used to instruct the user equipment to switch the link, and the service transmission of the user equipment is not interrupted, the first network device 102 according to the first indication information, know that the first user equipment 101 switches the link without interrupting the service transmission of the first user equipment 101, and/or learn that the second user equipment 103 switches the link without interrupting the service transmission of the second user equipment 103.
  • the first network device 102 will switch the user equipment to Inactive according to the first indication information.
  • the user equipment 101 and/or the second user equipment 103 switch to Inactive.
  • the network device retains the transmission service configuration of the user equipment and/or the context of the user equipment, including: the first network device 102 retains the transmission service configuration of the first user equipment 101 and/or the first user The context of the device 101, and/or the first network device 102 notifies the second network device 104 to retain the transmission service configuration of the second user equipment 103 and/or the context of the second user equipment 103.
  • the first network device 102 learns the first user equipment according to the first indication information The device 101 has established the PC5 link, and/or the first network device 102 notifies the second network device 104 that the second user equipment 103 has established the PC5 link according to the first indication information.
  • the first indication information is used to instruct the user equipment to switch the link, and the service transmission of the user equipment is not interrupted
  • the first network equipment 102 according to the first Indication information, it is learned that the first user equipment 101 switches the link, and the service transmission of the first user equipment 101 is not interrupted, and/or, the first network device 102 notifies the second network device 104 according to the first indication information: the second user The device 103 switches the link, and the service transmission of the second user equipment 103 is not interrupted.
  • the first network device 102 sends the first indication information to the first network device 102 according to the first indication information
  • the user equipment 101 switches to Inactive, and/or the first network device 102 notifies the second network device 104 to switch the second user equipment 103 to Inactive according to the first indication information.
  • user equipment includes, but is not limited to, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station (Mobile Station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device ( Terminal Equipment), wireless communication equipment, user agent or user device.
  • an access terminal a subscriber unit, a subscriber station, a mobile station, a mobile station (Mobile Station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device ( Terminal Equipment), wireless communication equipment, user agent or user device.
  • the user equipment may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL for short) station, a Personal Digital Assistant (PDA for short), a Wireless communication-enabled handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or future evolved Public Land Mobile Networks (PLMN for short) ) in the terminal equipment, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • PLMN Public Land Mobile Networks
  • the first network device and the second network device include, but are not limited to, devices that can provide wireless communication capabilities, such as a base station.
  • the base station includes but is not limited to the equipment that provides the base station function in the 2G network, such as: Base Transceiver Station (English: Base Transceiver Station, BTS for short), the equipment that provides the base station function in the 3G network, such as: Node B (NodeB), Devices that provide base station functions in 4G networks, such as Evolved NodeB (eNB), and devices that provide base station functions in Wireless Local Area Networks (WLAN), such as Access Points (Access Points) Point, AP for short), the device Gnb that provides base station functions in 5G New Radio (New Radio, NR for short), and the node B (ng-eNB) that continues to evolve, where gNB and terminal use NR technology for communication, ng -E-UTRA (Evolved Universal Terrestrial Radio Access, Evolved Universal Terrestrial Radio Access)
  • the communication interface between the first user equipment 101 and the first network device 102 is the Uu interface, and the second user equipment 103 communicates with the first network device 102.
  • the communication interface between a network device 102 is a Uu interface; the direct communication interface between the first user equipment 101 and the second user equipment 103 is a PC5 interface; the first network device 102 can also communicate with the core network 105 .
  • the first user equipment 101 communicates with the first network device 102 through the Uu interface
  • the second user equipment 103 communicates with the first network device 102 through the Uu interface.
  • the two network devices 104 communicate; the direct communication interface between the first user equipment 101 and the second user equipment 103 is the PC5 interface; the first network device 102 and the second network device 104 communicate through the core network 105, that is, the first network device 102 can transmit the corresponding notification message to the second network device 104 through the core network 105, that is, if the first network device 102 and the second network device 104 are both base stations, the first network device 102 notifies the second network through the base station interface.
  • Device 104 performs the aforementioned notification operations.
  • the services transmitted on the link are mainly ProSe (Proximity-Based Services, close to basic services), and the transmission service configuration of the same service when transmitted on the direct link and when transmitted on the Uu link may be different.
  • the embodiments of the present application provide a link switching indication method, and this specification provides the method operation steps as described in the embodiments, but may include more or less operation steps based on routine or non-creative work.
  • the sequence of steps enumerated in the embodiments is only one of the execution sequences of many steps, and does not represent the only execution sequence.
  • the methods shown in the embodiments may be executed sequentially or in parallel.
  • the link switching indication method is applied in the first user equipment, and the method includes:
  • S21 Send the first indication information to the network device.
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the Context of the user equipment.
  • the embodiment of the present application can quickly restore the original link connection corresponding to the service of switching link transmission according to the reserved transmission service configuration of the user equipment and/or the context of the user equipment, thereby reducing the delay of data transmission of the first user equipment , effectively avoid data transmission interruption.
  • FIG. 2 is a schematic flowchart of a link switching indication method provided by an embodiment of the application.
  • This specification provides the method operation steps as described in the embodiment or the flowchart, but is based on conventional or non-creative work. More or fewer operational steps may be included.
  • the sequence of steps enumerated in the embodiments is only one of the execution sequences of many steps, and does not represent the only execution sequence.
  • the methods shown in the embodiments or the accompanying drawings may be executed sequentially or in parallel.
  • the link switching indication method is applied to a network device, and the method includes:
  • step S202 is performed.
  • S202 Retain the transmission service configuration of the user equipment and/or the context of the user equipment according to the first indication information.
  • the embodiment of the present application can quickly restore the original link connection corresponding to the service of switching link transmission according to the reserved transmission service configuration of the user equipment and/or the context of the user equipment, thereby reducing the delay of data transmission of the first user equipment , effectively avoid data transmission interruption.
  • step S21 and steps S201 to S202 may refer to the description of the subsequent embodiments.
  • FIG. 3 is a schematic diagram of an interaction flow of a link switching indication method provided by an embodiment of the present application.
  • This specification provides the operation steps of the method as described in the embodiment or the flowchart, but based on conventional or non-creative Labor may include more or fewer operational steps.
  • the sequence of steps enumerated in the embodiments is only one of the execution sequences of many steps, and does not represent the only execution sequence.
  • the methods shown in the embodiments or the accompanying drawings may be executed sequentially or in parallel. Specifically, as shown in Figure 3, the method includes:
  • step S301 is performed.
  • S301 The first user equipment sends first indication information to a network device.
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context of the user equipment.
  • the transmission service configuration of the reserved user equipment indicated by the first indication information refers to the configuration of the service that the user equipment can transmit through the PC5 interface, that is, the first user equipment and the second user equipment can pass through the Configuration of services transmitted by the PC5 interface.
  • the service that can be transmitted through the PC5 interface may correspond to one or more radio bearers
  • the transmission service configuration of the reserved user equipment may be the configuration of the one or more radio bearers, including: MAC ( Configurations such as parameters or measurements of the physical) layer or the cell group where the user equipment is located, the configuration of the one or more radio bearers may be stored in the network device as the context of the user equipment.
  • the reserved transmission service configuration of the user equipment includes: the configuration of the service transmitted on the Uu link that can be transmitted through the PC5 interface.
  • the first user equipment before the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through the Uu link, that is, the first user equipment and the second user equipment communicate through the Uu link link transmission service.
  • the first user equipment After establishing the PC5 link, the first user equipment communicates with the second user equipment through the PC5 link, that is, after the first user equipment establishes the PC5 link, the first user equipment and the second user equipment communicate through the PC5 link
  • the first user equipment can transfer all or part of the services originally transmitted on the Uu link to the PC5 link for continuous transmission, that is, the transmission on the PC5 link that was originally transmitted on the Uu link can be transmitted through the PC5 interface Business.
  • the first user equipment may also receive the indication information for instructing to retain the transmission service configuration and/or context of the user equipment, or receive To the scenario where the related service can be transmitted through the PC5 link, for example, in the scenario where the first user equipment receives the instruction information sent by the NAS (Non-Access-Stratum, non-access stratum), according to the received instruction information
  • the first indication information is generated and sent to the network device, and the first user equipment may also send the first indication information to the network device in other scenarios where there is a demand, which will not be repeated here.
  • the first user equipment may also communicate with the network device through a Uu link (Uu interface), that is, the first user equipment may send the first indication information to the network device through the Uu link.
  • the first user equipment may send the first indication information to the network device before or after or at the same time as establishing the PC5 link with the second user equipment, that is, within a time period close to the establishment of the PC5 link.
  • the first indication information is further used to indicate that the user equipment has established the PC5 link; and/or: the first indication information is further used to instruct the user equipment to switch the link, and the service transmission of the user equipment is not interrupted; and/or: the first indication information is further used to instruct the network device to switch the user equipment to an inactive state Inactive.
  • the switching of the link by the user equipment without interrupting the service transmission of the user equipment means that the first user equipment switches the link that transmits the service with the second user equipment from the Uu link to the PC5 link, but the original link is the Uu link.
  • the services transmitted on the road that can be transmitted through the PC5 interface are not interrupted, but migrate to the PC5 link to continue transmission, or transmit new services on the PC5 link.
  • the first user equipment can send a message to the network device to instruct the network device to switch the user equipment.
  • the first indication information to the inactive state Inactive.
  • the user equipment includes: the first user equipment and/or the second user equipment.
  • the first user equipment sends first indication information to the network equipment to instruct the network equipment to retain the transmission service configuration and/or context of the first user equipment and/or the second user equipment, so that the subsequent user equipment needs to restore the Uu link to When transmitting services, directly use the reserved user equipment transmission service configuration and/or context to quickly restore the Uu link connection, reduce the data transmission delay between the first user equipment and the second user equipment, and avoid the first user equipment and the second user equipment. Data transmission between two user equipments is interrupted.
  • the first user equipment obtains the identification information of the second user equipment and/or the cell identification information of the second user equipment through the PC5 link.
  • the first user equipment interacts with the second user equipment through the PC5 link to obtain the identification information of the second user equipment and/or the cell identification information of the second user equipment from the second user equipment; the second user equipment Through the PC5 link, the identification information of the second user equipment and/or the cell identification information of the second user equipment is sent to the first user equipment.
  • the identification information of the second user equipment includes Source ID (source identification), Destination ID (destination identification), temporary mobile subscriber identity TMSI (Temporary Mobile Subscriber Identity, TMSI), C-RNTI (Cell -At least one of the Radio Network Temporary Identifier, the cell wireless network temporary identifier).
  • the cell identification information of the second user equipment refers to the cell identification of the cell where the second user equipment is located; the cell identification includes a PCI (Physical Cell ID, physical cell identification) and/or a base station identification.
  • PCI Physical Cell ID, physical cell identification
  • the first user equipment sends the identification information of the second user equipment and/or the cell identification information of the second user equipment to the network device.
  • the first user equipment sends the identification information of the second user equipment and/or the cell identification information of the second user equipment to the network device through a Uu link (Uu interface) communicating with the network device.
  • a Uu link Uu interface
  • step S303 can also be executed before or at the same time as step S301, and is not limited to be executed after step S301.
  • the network device receives the third indication information; and/or: the network device receives the identification information of the second user equipment and/or the cell identification information of the second user equipment sent by the first user equipment.
  • the third indication information is used to indicate that one or more flows (service flows) in the first user equipment are allowed to be switched from the Uu link bearer to the PC5 link bearer.
  • the network device After the network device receives the third indication information, it can know that the one or more flows in the first user equipment and/or the corresponding one or more flows may be switched from the Uu link bearer to the PC5 link bearer. wireless bearer.
  • the third indication information may be sent by other external networks to the network device through the core network, may also be sent by the user equipment to the network device, or may be configured by the network element in the network where the network device is located by way of background configuration.
  • the network device may also be sent or configured to the network device in other ways, which will not be described in detail here.
  • the third indication information is further used to indicate the identification information of the second user equipment and/or the cell identification information of the second user equipment.
  • the network device may obtain the identification information of the second user equipment and/or the cell identification information of the second user equipment through the third indication information, and may also obtain the identification of the second user equipment directly from the first user equipment information and/or cell identification information of the second user equipment, so as to determine the first user equipment communicating with the first user equipment according to the identification information of the second user equipment and/or the cell identification information of the second user equipment.
  • the second user equipment, and then the network device may correspondingly retain the transmission service configuration of the second user equipment and/or the context Context of the second user equipment and other related configurations for restoring the Uu link connection.
  • S305 The network device receives the first indication information.
  • the first indication information is sent by the first user equipment to the network device if the first user equipment establishes a PC5 link; the first user equipment and the second user equipment Communication through the PC5 link, that is, after the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through the PC5 link to transmit services.
  • the first user equipment before the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through the Uu link, that is, the service is transmitted through the Uu link.
  • step S306 is performed.
  • step S305 can also be executed before or at the same time as step S304, and is not limited to be executed only after step S304.
  • the network device retains the transmission service configuration of the user equipment and/or the context of the user equipment according to the first indication information.
  • the network device switches the user equipment to the inactive state according to the first indication information Inactive state Inactive.
  • the first indication information is further used to indicate that the user equipment has established the PC5 link, that is, to inform the network device that the user equipment has established the PC5 link; and/or: the first indication The information is also used to instruct the user equipment to switch the link without interrupting the service transmission of the user equipment, that is, to inform the network equipment that the user equipment switches the link without interrupting the service transmission of the user equipment.
  • step S307 is executed.
  • the first user equipment sends second indication information to the network device, so that the network device restores or establishes a Uu link according to the second indication information.
  • the first user equipment may receive indication information for instructing to restore the Uu link to transmit services, and generate and send the second indication information to the network device according to the indication information; or, the first user equipment may When it is detected that the signal of the PC5 link becomes poor, for example: when the signal strength of the PC5 link is lower than the preset signal strength, the second indication information is automatically generated and sent to the network device; When the service transmitted through the Uu link is required, the second indication information is automatically generated and sent to the network device.
  • the first user equipment sends the second indication information to the network device through a Uu link (Uu interface) that communicates with the network device.
  • Uu link Uu interface
  • the second indication information is used to instruct the network device to restore or establish the Uu link, so that the first user equipment and the second user equipment transmit services through the Uu link, for example: the data to be transmitted on the PC5 link The service is switched to the Uu link for transmission.
  • the second indication information is used to instruct the network device to retain the service configuration transmitted on the PC5 link, that is, to retain the first user equipment and the second user equipment currently on the PC5 link
  • the configuration of the related Uu link when the transmitted service was originally transmitted on the Uu link for example: the radio bearer configuration and other measurement configurations of the service transmitted on the Uu link, the configuration of the related Uu link may be reserved according to step S306
  • the transmission service configuration of the user equipment and/or the context Context of the user equipment are obtained.
  • the second indication information is used to instruct the network device to restore the service configuration transmitted on the PC5 link on the Uu link, that is, to restore the switch from the Uu link to the current PC5 link
  • the configuration of the relevant Uu link when the service transmitted on the link is originally transmitted on the Uu link may be the transmission service configuration of the user equipment reserved according to step S306 and/or the user equipment The context Context obtained.
  • the first user equipment can continue to transmit the unfinished transmission service originally transmitted on the PC5 link on the Uu link.
  • the second indication information is specifically used to instruct the network device to establish a new service bearer and/or generate a new transmission service configuration, that is, the network device can reserve the transmission service of the user equipment according to step S306 Configure and/or the context Context of the user equipment, quickly establish a new service bearer and/or generate a new transmission service configuration, so that the first user equipment can perform a new service through the new service bearer and/or the new transmission service configuration.
  • Transmission service the new transmission service may be related to the second user equipment, for example: the first user equipment performs a video call transmission service with the second user equipment, or may not be related to the second user equipment, for example: the first user equipment loads a webpage transmission business.
  • S308 The network device receives the second indication information sent by the first user equipment.
  • the network device restores or establishes the Uu link according to the second indication information, so that the first user equipment and the second user equipment transmit services through the Uu link.
  • the network device retains the service configuration on the PC5 link according to the second indication information Service configuration transmitted on the road.
  • the network device will use the second indication information to restore the service configuration transmitted on the PC5 link on the Uu link. , and restore the service configuration transmitted on the PC5 link on the Uu link.
  • the network device if the second indication information is used to instruct the network device to establish a new service bearer and/or generate a new transmission service configuration, the network device establishes a new service according to the second indication information Bearing and/or generating new transport service configurations.
  • the first user equipment sends the first indication information to the network device to instruct the network device to retain the transmission service configuration of the user equipment and/or the context of the user equipment, so as to prevent the first user equipment and the second user equipment from being separated by Uu
  • the Uu link connection is completely deleted, so that it takes a long time to re-establish the corresponding Uu link connection when the Uu link transmission service is restored.
  • the embodiment of the present application can quickly restore the original link connection corresponding to the service of switching link transmission according to the reserved transmission service configuration of the user equipment and/or the context of the user equipment, thereby reducing the delay of data transmission of the first user equipment , effectively avoid the interruption of data transmission, and improve the real-time performance of data transmission.
  • FIG. 4 is a schematic structural diagram of a link switching indication device provided by an embodiment of the present application.
  • the link switching indication device includes: a storage device 401 and a processor 402; And the link switching instructing device may further include a data interface 403 and a user interface 404 .
  • Various types of buses can also be used to establish connections between various hardwares.
  • the link switching instructing device can exchange data with other terminals, servers and other devices; the user interface 404 is used to realize human-computer interaction between the user and the link switching instructing device ;
  • the user interface 404 can provide a touch display screen, physical keys, etc. to realize the human-computer interaction between the user and the link switching indicating device.
  • the storage device 401 may include a volatile memory (Volatile memory), such as a random access memory (Random-Access Memory, RAM); the storage device 401 may also include a non-volatile memory (Non-Volatile Memory), such as a flash memory. Flash memory (Flash Memory), solid-state drive (Solid-State Drive, SSD), etc.; the storage device 401 may also include a combination of the above-mentioned types of memory.
  • volatile memory such as a random access memory (Random-Access Memory, RAM)
  • non-Volatile Memory such as a flash memory.
  • Flash memory Flash Memory
  • Solid-State Drive SSD
  • the storage device 401 may also include a combination of the above-mentioned types of memory.
  • the processor 402 may be a central processing unit (Central Processing Unit, CPU).
  • the processor 402 may further include a hardware chip.
  • the above-mentioned hardware chip can be an application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), a programmable logic device (Programmable Logic Device, PLD), and the like.
  • the above-mentioned PLD may be a Field-Programmable Gate Array (FPGA), a Generic Array Logic (GAL), or the like.
  • the link switching indicating device is the first user equipment:
  • the storage device 401 is used to store program codes
  • the processor 402 when invoking the stored code, is configured to send the first indication information to the network device;
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context of the user equipment.
  • the processor 402 is specifically configured to send first indication information to a network device if the first user equipment establishes a PC5 link; the first user equipment and the second user equipment pass through the The PC5 link communication described above.
  • the first user equipment before the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through a Uu link.
  • the processor 402 is further configured to send the identification information of the second user equipment and/or the cell identification information of the second user equipment to the network device.
  • the processor 402 is further configured to acquire the identification information of the second user equipment and/or the cell identification information of the second user equipment through the PC5 link.
  • the first indication information is further used to indicate that the user equipment has established the PC5 link
  • the first indication information is further used to instruct the user equipment to switch links without interrupting service transmission of the user equipment;
  • the first indication information is further used to instruct the network device to switch the user equipment to an inactive state Inactive.
  • the processor 402 is further configured to send second indication information to the network device, so that the network device restores or establishes the Uu link according to the second indication information;
  • the second indication information is used to instruct the network device to retain the service configuration transmitted on the PC5 link;
  • the second indication information is used to instruct the network device to restore the service configuration transmitted on the PC5 link on the Uu link;
  • the second indication information is used to instruct the network device to establish a new service bearer and/or generate a new transmission service configuration.
  • the user equipment includes: the first user equipment and/or the second user equipment.
  • the identification information of the second user equipment includes at least one of a source identification Source ID, a destination identification Destination ID, a temporary mobile subscriber identity code TMSI, and a cell wireless network temporary identification C-RNTI.
  • the cell identification information of the second user equipment refers to the cell identification of the cell where the second user equipment is located; the cell identification includes a physical cell identification PCI and/or a base station identification.
  • the link switching indicating device is a network device
  • the storage device 401 is used to store program codes
  • the processor 402 is configured to receive first indication information when calling the stored code
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context context of the user equipment, then according to the first indication information, retain the transmission service configuration of the user equipment and/or the context Context of the user equipment.
  • the first indication information is sent by the first user equipment to the network device if the first user equipment establishes a PC5 link; the first user equipment and the second user equipment Communicate over the PC5 link.
  • the first user equipment before the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through a Uu link.
  • the processor 402 is further configured to receive third indication information; the third indication information is used to indicate that one or more service flows in the first user equipment are allowed to be processed by the Uu The link bearer is switched to the PC5 link bearer.
  • the third indication information is further used to indicate the identification information of the second user equipment and/or the cell identification information of the second user equipment.
  • the processor 402 is further configured to receive the identification information of the second user equipment and/or the cell identification information of the second user equipment sent by the first user equipment.
  • the processor 402 is further configured to, if the first indication information is used to instruct the network device to switch the user equipment to the inactive state Inactive, according to the first indication information, The user equipment is switched to the inactive state Inactive.
  • the first indication information is further used to indicate that the user equipment has established the PC5 link
  • the first indication information is further used to instruct the user equipment to switch links without interrupting service transmission of the user equipment.
  • the processor 402 is further configured to receive second indication information sent by the first user equipment;
  • the second indication information is used to instruct the network device to retain the service configuration transmitted on the PC5 link, then according to the second indication information, retain the service configuration transmitted on the PC5 link;
  • the second indication information is used to instruct the network device to restore the service configuration transmitted on the PC5 link on the Uu link, then according to the second indication information, on the Uu link restore the service configuration transmitted on the PC5 link;
  • the second indication information is used to instruct the network device to establish a new service bearer and/or generate a new transmission service configuration, establish a new service bearer and/or generate a new transmission according to the second indication information business configuration.
  • the user equipment includes: the first user equipment and/or the second user equipment.
  • the second user equipment identifier includes at least one of a source identifier Source ID, a destination identifier Destination ID, a temporary mobile subscriber identity code TMSI, and a cell radio network temporary identifier C-RNTI.
  • the cell identifier of the cell where the second user equipment is located includes a physical cell identifier PCI and/or a base station identifier.
  • FIG. 5 is a schematic structural diagram of a link switching instructing apparatus provided by an embodiment of the present application. Specifically, as shown in FIG. 5, the link switching instructing apparatus includes:
  • a sending module 501 configured to send first indication information to a network device
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context of the user equipment.
  • the sending module 501 is specifically configured to send first indication information to a network device if the first user equipment establishes a PC5 link; the first user equipment and the second user equipment pass through the The PC5 link communication described above.
  • the first user equipment before the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through a Uu link.
  • the sending module 501 is further configured to send the identification information of the second user equipment and/or the cell identification information of the second user equipment to the network device.
  • the link switching instructing device further includes:
  • an obtaining module configured to obtain the identification information of the second user equipment and/or the cell identification information of the second user equipment through the PC5 link.
  • the first indication information is further used to indicate that the user equipment has established the PC5 link
  • the first indication information is further used to instruct the user equipment to switch links without interrupting service transmission of the user equipment;
  • the first indication information is further used to instruct the network device to switch the user equipment to an inactive state Inactive.
  • the sending module 501 is further configured to send second indication information to the network device, so that the network device restores or establishes a Uu link according to the second indication information;
  • the second indication information is used to instruct the network device to retain the service configuration transmitted on the PC5 link;
  • the second indication information is used to instruct the network device to restore the service configuration transmitted on the PC5 link on the Uu link;
  • the second indication information is used to instruct the network device to establish a new service bearer and/or generate a new transmission service configuration.
  • the user equipment includes: the first user equipment and/or the second user equipment.
  • the identification information of the second user equipment includes at least one of a source identification Source ID, a destination identification Destination ID, a temporary mobile subscriber identity code TMSI, and a cell wireless network temporary identification C-RNTI.
  • the cell identification information of the second user equipment refers to the cell identification of the cell where the second user equipment is located; the cell identification includes a physical cell identification PCI and/or a base station identification.
  • FIG. 6 is a schematic structural diagram of another link switching instructing device provided by an embodiment of the present application. Specifically, as shown in FIG. 6, the link switching instructing device includes:
  • a receiving module 601, configured to receive first indication information
  • Reservation module 602 configured to reserve the user equipment according to the first indication information if the first indication information is used to instruct the network device to preserve the transmission service configuration of the user equipment and/or the context of the user equipment The transmission service configuration and/or the context Context of the user equipment.
  • the first indication information is sent by the first user equipment to the network device if the first user equipment establishes a PC5 link; the first user equipment and the second user equipment Communicate over the PC5 link.
  • the first user equipment before the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through a Uu link.
  • the receiving module 601 is further configured to receive third indication information; the third indication information is used to indicate that one or more service flows in the first user equipment are allowed to be processed by the Uu The link bearer is switched to the PC5 link bearer.
  • the third indication information is further used to indicate the identification information of the second user equipment and/or the cell identification information of the second user equipment.
  • the receiving module 601 is further configured to receive the identification information of the second user equipment and/or the cell identification information of the second user equipment sent by the first user equipment.
  • the link switching instructing means includes:
  • a switching module configured to switch the user equipment to an inactive state according to the first indication information if the first indication information is used to instruct the network device to switch the user equipment to an inactive state Inactive Inactive.
  • the first indication information is further used to indicate that the user equipment has established the PC5 link
  • the first indication information is further used to instruct the user equipment to switch links without interrupting service transmission of the user equipment.
  • the receiving module 601 is further configured to receive second indication information sent by the first user equipment
  • the reservation module 602 is further configured to, if the second indication information is used to instruct the network device to reserve the service configuration transmitted on the PC5 link, then according to the second indication information, reserve the service configuration in the PC5 Service configuration transmitted on the link;
  • the link switching instructing device further includes:
  • a recovery module configured to: if the second indication information is used to instruct the network device to restore the service configuration transmitted on the PC5 link on the Uu link, then according to the second indication information, in the The service configuration transmitted on the described PC5 link is restored on the Uu link;
  • the establishment module is configured to, if the second indication information is used to instruct the network device to establish a new service bearer and/or generate a new transmission service configuration, then according to the second indication information, establish a new service bearer and/or Or generate a new transport service configuration.
  • the user equipment includes: the first user equipment and/or the second user equipment.
  • the second user equipment identifier includes at least one of a source identifier Source ID, a destination identifier Destination ID, a temporary mobile subscriber identity code TMSI, and a cell radio network temporary identifier C-RNTI.
  • the cell identifier of the cell where the second user equipment is located includes a physical cell identifier PCI and/or a base station identifier.
  • an embodiment of the present invention also provides a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and the computer program enables a computer to execute any one of step S21, steps S301 to S303, and S307 of the present application methods described in the examples.
  • the computer storage medium here may include both the built-in storage medium in the smart terminal, and certainly also the extended storage medium supported by the smart terminal.
  • the computer storage medium provides storage space, and the storage space stores the operating system of the intelligent terminal.
  • one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space, and these instructions may be one or more computer programs (including program codes).
  • the computer storage medium here may be a high-speed RAM memory, or a non-volatile memory (Non-Volatile Memory), such as at least one magnetic disk memory; optionally, at least one storage medium located far away from the aforementioned processor may also be used. computer storage media.
  • an embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and the computer program enables a computer to perform steps S201 to S202, steps S304 to S306, and S308 of the present application
  • the computer storage medium here may include both the built-in storage medium in the smart terminal, and certainly also the extended storage medium supported by the smart terminal.
  • the computer storage medium provides storage space, and the storage space stores the operating system of the intelligent terminal.
  • one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space, and these instructions may be one or more computer programs (including program codes).
  • the computer storage medium here may be a high-speed RAM memory, or a non-volatile memory (Non-Volatile Memory), such as at least one magnetic disk memory; optionally, at least one storage medium located far away from the aforementioned processor may also be used. computer storage media.
  • an embodiment of the present application provides a chip, where the chip is configured to output first indication information, so as to send the first indication information to a network device;
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context of the user equipment.
  • the chip is specifically configured to output the first indication information if the first user equipment establishes a PC5 link, so as to send the first indication information to the network device; the first user equipment and the The second user equipment communicates through the PC5 link.
  • the first user equipment before the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through a Uu link.
  • the chip is further configured to output identification information of the second user equipment and/or cell identification information of the second user equipment, so as to send the second user to the network device The identification information of the device and/or the cell identification information of the second user equipment.
  • the chip is further configured to acquire the identification information of the second user equipment and/or the cell identification information of the second user equipment through the PC5 link.
  • the first indication information is further used to indicate that the user equipment has established the PC5 link
  • the first indication information is further used to instruct the user equipment to switch links without interrupting service transmission of the user equipment;
  • the first indication information is further used to instruct the network device to switch the user equipment to an inactive state Inactive.
  • the chip is further configured to output second indication information, so as to send the second indication information to the network device, so that the network device can restore or establish the Uu according to the second indication information link;
  • the second indication information is used to instruct the network device to retain the service configuration transmitted on the PC5 link;
  • the second indication information is used to instruct the network device to restore the service configuration transmitted on the PC5 link on the Uu link;
  • the second indication information is used to instruct the network device to establish a new service bearer and/or generate a new transmission service configuration.
  • the user equipment includes: the first user equipment and/or the second user equipment.
  • the identification information of the second user equipment includes at least one of a source identification Source ID, a destination identification Destination ID, a temporary mobile subscriber identity code TMSI, and a cell wireless network temporary identification C-RNTI.
  • the cell identification information of the second user equipment refers to the cell identification of the cell where the second user equipment is located; the cell identification includes a physical cell identification PCI and/or a base station identification.
  • the chip can execute the above step S21 and the related steps of the first user equipment in the method embodiment of FIG. 3 , for details, please refer to the implementation manners provided by the above steps, which will not be repeated here.
  • the chip includes at least one processor, at least one first memory, and at least one second memory; wherein, the at least one first memory and the at least one processor are interconnected through lines, and the first memory stores There are instructions; the at least one second memory and the at least one processor are interconnected through lines, and the second memory stores the data that needs to be stored in the foregoing method embodiments.
  • each module contained therein may be implemented by hardware such as circuits, or at least some of the modules may be implemented by a software program that runs on the integrated circuit inside the chip.
  • the processor and the remaining (if any) modules can be implemented in hardware such as circuits.
  • an embodiment of the present application further provides a chip, which is used to receive first indication information; if the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the user The context Context of the device, then according to the first indication information, the transmission service configuration of the user equipment and/or the context Context of the user equipment are reserved.
  • the first indication information is sent by the first user equipment to the network device if the first user equipment establishes a PC5 link; the first user equipment and the second user equipment Communicate over the PC5 link.
  • the first user equipment before the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through a Uu link.
  • the chip is further configured to receive third indication information; the third indication information is used to indicate that one or more service flows in the first user equipment are allowed to be used by the Uu link
  • the bearer is switched to the PC5 link bearer.
  • the third indication information is further used to indicate the identification information of the second user equipment and/or the cell identification information of the second user equipment.
  • the chip is further configured to receive the identification information of the second user equipment and/or the cell identification information of the second user equipment sent by the first user equipment.
  • the chip is further configured to, if the first indication information is used to instruct the network device to switch the user equipment to the inactive state Inactive, according to the first indication information, The user equipment switches to the inactive state Inactive.
  • the first indication information is further used to indicate that the user equipment has established the PC5 link
  • the first indication information is further used to instruct the user equipment to switch links without interrupting service transmission of the user equipment.
  • the chip is further configured to receive second indication information sent by the first user equipment
  • the second indication information is used to instruct the network device to retain the service configuration transmitted on the PC5 link, then according to the second indication information, retain the service configuration transmitted on the PC5 link;
  • the second indication information is used to instruct the network device to restore the service configuration transmitted on the PC5 link on the Uu link, then according to the second indication information, on the Uu link restore the service configuration transmitted on the PC5 link;
  • the second indication information is used to instruct the network device to establish a new service bearer and/or generate a new transmission service configuration, establish a new service bearer and/or generate a new transmission according to the second indication information business configuration.
  • the user equipment includes: the first user equipment and/or the second user equipment.
  • the second user equipment identifier includes at least one of a source identifier Source ID, a destination identifier Destination ID, a temporary mobile subscriber identity code TMSI, and a cell radio network temporary identifier C-RNTI.
  • the cell identifier of the cell where the second user equipment is located includes a physical cell identifier PCI and/or a base station identifier.
  • the chip can execute the steps related to the network device in the method embodiments of FIG. 2 and FIG. 3 .
  • steps related to the network device in the method embodiments of FIG. 2 and FIG. 3 .
  • details refer to the implementation manners provided by the above steps, and details are not repeated here.
  • the chip includes at least one processor, at least one first memory, and at least one second memory; wherein, the at least one first memory and the at least one processor are interconnected through lines, and the first memory stores There are instructions; the at least one second memory and the at least one processor are interconnected through lines, and the second memory stores the data that needs to be stored in the foregoing method embodiments.
  • FIG. 7 is a schematic structural diagram of a modular device provided by an embodiment of the application.
  • the modular device includes an output interface 701, wherein:
  • the output interface 701 is configured to output the first indication information, so as to send the first indication information to the network device;
  • the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context of the user equipment.
  • the output interface 701 is specifically configured to output first indication information if the first user equipment establishes a PC5 link, so as to send the first indication information to a network device; the first indication information A user equipment communicates with a second user equipment through the PC5 link.
  • the first user equipment before the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through a Uu link.
  • the output interface 701 is specifically configured to output the identification information of the second user equipment and/or the cell identification information of the second user equipment, so as to send the first user equipment to the network device.
  • the identification information of the second user equipment and/or the cell identification information of the second user equipment are specifically configured to output the identification information of the second user equipment and/or the cell identification information of the second user equipment.
  • the module device further includes:
  • the input interface is used to obtain the identification information of the second user equipment and/or the cell identification information of the second user equipment through the PC5 link.
  • the first indication information is further used to indicate that the user equipment has established the PC5 link
  • the first indication information is further used to instruct the user equipment to switch links without interrupting service transmission of the user equipment;
  • the first indication information is further used to instruct the network device to switch the user equipment to an inactive state Inactive.
  • the output interface 701 is further configured to output second indication information, so as to send the second indication information to the network device, so that the network device can recover according to the second indication information or establish a Uu link;
  • the second indication information is used to instruct the network device to retain the service configuration transmitted on the PC5 link;
  • the second indication information is used to instruct the network device to restore the service configuration transmitted on the PC5 link on the Uu link;
  • the second indication information is used to instruct the network device to establish a new service bearer and/or generate a new transmission service configuration.
  • the user equipment includes: the first user equipment and/or the second user equipment.
  • the identification information of the second user equipment includes at least one of a source identification Source ID, a destination identification Destination ID, a temporary mobile subscriber identity code TMSI, and a cell wireless network temporary identification C-RNTI.
  • the cell identification information of the second user equipment refers to the cell identification of the cell where the second user equipment is located; the cell identification includes a physical cell identification PCI and/or a base station identification.
  • the specific connection medium between the output interface 701 and the chip module (not shown in FIG. 7 ) is not limited in the embodiment of the present application.
  • the output interface 701 and the chip module are connected by a bus 702 in FIG. 7 .
  • the bus is represented by a thick line in FIG. 7 . be limited.
  • the bus 702 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 7, but it does not mean that there is only one bus or one type of bus.
  • FIG. 8 is a schematic structural diagram of another module device provided by an embodiment of the application.
  • the module device includes an input interface 801 and a chip module 802, wherein:
  • the input interface 801 is used to receive first indication information
  • the chip module 802 is configured to, if the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context Context of the user equipment, retain all the information according to the first indication information.
  • the transmission service configuration of the user equipment and/or the context Context of the user equipment is configured to, if the first indication information is used to instruct the network device to retain the transmission service configuration of the user equipment and/or the context Context of the user equipment.
  • the first indication information is sent by the first user equipment to the network device if the first user equipment establishes a PC5 link; the first user equipment and the second user equipment Communicate over the PC5 link.
  • the first user equipment before the first user equipment establishes the PC5 link, the first user equipment communicates with the second user equipment through a Uu link.
  • the input interface 801 is further configured to receive third indication information; the third indication information is used to indicate that one or more service flows in the first user equipment are allowed to be processed by the Uu The link bearer is switched to the PC5 link bearer.
  • the third indication information is further used to indicate the identification information of the second user equipment and/or the cell identification information of the second user equipment.
  • the input interface 801 is further configured to receive the identification information of the second user equipment and/or the cell identification information of the second user equipment sent by the first user equipment.
  • the chip module 802 is further configured to, if the first indication information is used to instruct the network device to switch the user equipment to the inactive state Inactive, according to the first indication information , the user equipment is switched to the inactive state Inactive.
  • the first indication information is further used to indicate that the user equipment has established the PC5 link
  • the first indication information is further used to instruct the user equipment to switch links without interrupting service transmission of the user equipment.
  • the input interface 801 is further configured to receive second indication information sent by the first user equipment
  • the chip module 802 is further configured to, if the second indication information is used to instruct the network device to retain the service configuration transmitted on the PC5 link, then according to the second indication information, reserve the service configuration in the Service configuration transmitted on the PC5 link;
  • the chip module 802 is further configured to, if the second indication information is used to instruct the network device to restore the service configuration transmitted on the PC5 link on the Uu link, according to the second Indication information, restore the service configuration transmitted on the PC5 link on the Uu link;
  • the chip module 802 is further configured to, if the second indication information is used to instruct the network device to establish a new service bearer and/or generate a new transmission service configuration, to establish a new transmission service configuration according to the second indication information. and/or generate a new transport service configuration.
  • the user equipment includes: the first user equipment and/or the second user equipment.
  • the second user equipment identifier includes at least one of a source identifier Source ID, a destination identifier Destination ID, a temporary mobile subscriber identity code TMSI, and a cell radio network temporary identifier C-RNTI.
  • the cell identifier of the cell where the second user equipment is located includes a physical cell identifier PCI and/or a base station identifier.
  • the input interface 801 and the output interface may be independent communication interfaces, or may be the same communication interface.
  • the specific connection medium between the input interface 801 , the chip module 802 , and the output interface is not limited in the embodiments of the present application.
  • the input interface 801 , the chip module 802 and the output interface are connected by a bus 803 in FIG. 8 .
  • the bus is represented by a thick line in FIG. 8 , and the connection between other components is only schematic. The description is not intended to be limiting.
  • the bus 803 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 8, but it does not mean that there is only one bus or one type of bus.

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Abstract

本申请实施例公开了一种链路切换指示方法、装置、存储介质、芯片及相关设备，所述方法包括：向网络设备发送第一指示信息；所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。采用本发明，能够根据保留的用户设备的传输业务配置和/或所述用户设备的Context，快速恢复切换链路传输的业务对应的原链路连接，减少数据传输的时延。

Description

链路切换指示方法、装置、存储介质、芯片及相关设备 技术领域
本发明涉及通信领域，尤其涉及一种链路切换指示方法、装置、存储介质、芯片及相关设备。
背景技术
用户设备与用户设备的通信方式包括：直连链路通信方式和Uu链路(Uu Path)通信方式。直连链路通信方式是指用户设备之间建立直连链路，比如：PC5链路(PC5 Path)进行通信，在直连链路上所传输的业务主要是ProSe(Proximity-Based Services，接近基础服务)；Uu链路通信方式是指用户设备之间通过网络转发通信，对应的通信链路为Uu链路。
目前，用户设备根据策略切换链路进行数据传输，会删除原链路；用户设备在利用直连链路通信方式进行通信的过程中，若需要恢复Uu链路以传输业务，比如：由于PC5链路连接信号变差或者发生RLF(Radio Link Failure，无线链路失败)需要恢复Uu链路以传输业务，则需要CN(Core Network，核心网)重新建立用于传输业务的Uu链路连接，时延较长，降低了数据传输的实时性。
发明内容
本申请实施例提供一种链路切换指示方法、装置、存储介质、芯片及相关设备，能够快速恢复Uu链路连接，减少用户设备之间数据传输的时延。
为了解决上述技术问题，第一方面，本申请实施例提供一种链路切换指示方法，所述方法包括：
向网络设备发送第一指示信息；
所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
第二方面，本申请实施例还提供一种链路切换指示方法，所述方法包括：
接收第一指示信息；
若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
第三方面，本申请实施例提供一种链路切换指示设备，所述链路切换指示设备包括：存储装置和处理器，
所述存储装置，用于存储程序代码；
所述处理器，在调用所述存储代码时，用于执行如第一方面所述的链路切换指示方法。
第四方面，本申请实施例还提供一种链路切换指示设备，所述链路切换指示设备包括：存储装置和处理器，
所述存储装置，用于存储程序代码；
所述处理器，在调用所述存储代码时，用于执行如第二方面所述的链路切换指示方法。
第五方面，本申请实施例提供一种链路切换指示装置，所述链路切换指示装置包括：
发送模块，用于向网络设备发送第一指示信息；
所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
第六方面，本申请实施例还提供一种链路切换指示装置，所述链路切换指示装置包括：
接收模块，用于接收第一指示信息；
保留模块，用于若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
第七方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，所述计算机程序使得计算机执行第一方面所述的链路切换指示方法。
第八方面，本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，所述计算机程序使得计算机执行第二方面所述的链路切换指示方法。
第九方面，本申请实施例提供一种芯片，所述芯片，用于输出第一指示信息，以便于向网络设备发送所述第一指示信息；
所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
第十方面，本申请实施例还提供一种芯片，所述芯片，用于接收第一指示信息；若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
第十一方面，本申请实施例提供一种模组设备，所述模组设备包括输出接口，其中：
所述输出接口，用于输出第一指示信息，以便于向网络设备发送所述第一指示信息；
所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
第十二方面，本申请实施例还提供一种模组设备，所述模组设备包括输入接口和芯片模组，其中：
所述输入接口，用于接收第一指示信息；
所述芯片模组，用于若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的 传输业务配置和/或所述用户设备的上下文Context。
实施本申请实施例，具有如下有益效果：
通过向网络设备发送第一指示信息，以指示网络设备保留用户设备的传输业务配置和/或用户设备的上下文Context，从而能够根据保留的用户设备的传输业务配置和/或用户设备的Context，快速恢复切换链路传输的业务对应的原链路连接，减少数据传输的时延，有效避免数据传输中断。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种链路切换指示方法的场景图；
图2为本申请实施例提供的一种链路切换指示方法的流程示意图；
图3为本申请实施例提供的一种链路切换指示方法的交互流程示意图；
图4为本申请实施例提供的一种链路切换指示设备的结构示意图；
图5为本申请实施例提供的一种链路切换指示装置的结构示意图；
图6为本申请实施例提供的另一种链路切换指示装置的结构示意图；
图7为本申请实施例提供的一种模组设备的结构示意图；
图8为本申请实施例提供的另一种模组设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，本申请的说明书和权利要求书中及上述附图中的属于“第一”、“第二”、“第三”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述以外的顺序实施。此外，术语“包括”及其任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或服务器不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
请参阅图1，图1为本申请实施例提供的一种链路切换指示方法的场景图。如图1所 示，在该链路切换指示方法的场景图中，第一用户设备101与第二用户设备103之间首先通过第一网络设备102进行业务传输，即第一用户设备101与第二用户设备103之间通过Uu链路进行业务传输；若第一用户设备101建立与第二用户设备103的PC5链路，即第一用户设备101与第二用户设备103之间通过PC5链路直接通信以进行业务传输，则第一用户设备101在成功建立PC5链路的之前或之后或同时，向第一网络设备102发送第一指示信息，以指示网络设备保留用户设备的传输业务配置和/或用户设备的Context(上下文)，其中，用户设备包括第一用户设备101和/或第二用户设备103；进而在第一用户设备101与第二用户设备103之间需要恢复在Uu链路上传输业务时，无需CN(Core Network，核心网)执行重新建立第一用户设备101与第二用户设备103通信的Uu链路连接相关操作，比如：CN(Core Network，核心网)建立PDU(Protocol Data Unit，协议数据单元)Session(会话)的操作、根据CN配置的Qos(Quality of Service，服务质量)参数建立Uu链路的业务承载的操作，而是直接根据保留的用户设备的传输业务配置和/或用户设备的Context快速恢复用于传输业务的Uu链路连接。
需要说明的是，第一用户设备101与网络设备之间通过Uu链路通信，前述切换链路的操作是将可通过PC5接口传输的业务由Uu链路切换到PC5链路传输。在可通过PC5接口传输的业务由Uu链路切换到PC5链路传输后，第一用户设备101可保留与网络设备之间的Uu链路，但保留的Uu链路并不用于传输前述已切换链路传输的可通过PC5链路传输的业务，而是执行其他传输业务，比如：第一用户设备101通过网络设备与其他外部网络通信的传输业务、第一用户设备101与其他用户设备之间必须通过网络设备转发传输的业务等；或者，第一用户设备101还可保留与网络设备之间可通过PC5接口传输的业务配置，但会删除Uu链路。若需要在Uu链路上重新传输前述切换到PC5链路上传输的业务，则需要根据保留的用户设备的传输业务配置和/或用户设备的Context恢复用于传输前述切换到PC5链路上传输的业务的Uu链路连接。
其中，第一指示信息，还可用于指示用户设备已建立PC5链路，即告知网络设备：用户设备已建立PC5链路；和/或：第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输，即告知网络设备：用户设备切换链路，且未中断所述用户设备的业务传输；和/或：第一指示信息还用于指示网络设备将用户设备切换到Inactive(非激活态)。
Inactive的用户设备在一定的RNA(RAN Notification Area，无线接入网通知区域)移动不需要通知网络设备，用户设备会保留一定配置，比如：目前，用户设备会保留PDCP(Packet Data Convergence Protocol，分组数据汇聚协议)和SDAP(Service Data Adaptation Protocol，服务数据适配协议)等配置以及原Pcell(Primary Cell，主小区)的一些lower-layer(低层)配置，如果网络需要调度用户设备或者用户设备有数据需要发送，则需要将用户设备迁移到Connect(连接态)，恢复保留的配置进行数据传输。
需要说明的是，一个用户设备的状态只受一个网络设备控制，即用户设备的主基站只有一个。
本申请实施例中，在两个用户设备的状态受同一网络设备控制的场景下，比如：在第一用户设备101和第二用户设备103的状态，均受第一网络设备102控制的场景下，网络设备保留用户设备的传输业务配置和/或用户设备的Context，包括：第一网络设备102保留第一用户设备101和/或第二用户设备103的传输业务配置和/或Context。
在前述两个用户设备的状态受同一网络设备控制的场景下，若第一指示信息用于指示用户设备已建立PC5链路，则第一网络设备102根据第一指示信息，获知第一用户设备101和/或第二用户设备103已建立PC5链路。
在前述两个用户设备的状态受同一网络设备控制的场景下，若第一指示信息用于指示用户设备切换链路，且未中断用户设备的业务传输，则第一网络设备102根据第一指示信息，获知第一用户设备101切换链路，且未中断第一用户设备101的业务传输，和/或，获知第二用户设备103切换链路，且未中断第二用户设备103的业务传输。
在前述两个用户设备的状态受同一网络设备控制的场景下，若第一指示信息用于指示网络设备将用户设备切换到Inactive，则由第一网络设备102根据第一指示信息，将第一用户设备101和/或第二用户设备103切换到Inactive。
本申请实施例中，在两个用户设备的状态分别受不同网络设备控制的场景下，比如：在第一用户设备101的状态受第一网络设备102控制，且第二用户设备103的状态受第二网络设备104控制的场景下，网络设备保留用户设备的传输业务配置和/或用户设备的Context，包括：第一网络设备102保留第一用户设备101的传输业务配置和/或第一用户设备101的Context，和/或，第一网络设备102通知第二网络设备104保留第二用户设备103的传输业务配置和/或第二用户设备103的Context。
在前述两个用户设备的状态分别受不同网络设备控制的场景下，若第一指示信息用于指示用户设备已建立PC5链路，则第一网络设备102根据第一指示信息，获知第一用户设备101已建立PC5链路，和/或，第一网络设备102根据第一指示信息，通知第二网络设备104：第二用户设备103已建立PC5链路。
在前述两个用户设备的状态分别受不同网络设备控制的场景下，若第一指示信息用于指示用户设备切换链路，且未中断用户设备的业务传输，则第一网络设备102根据第一指示信息，获知第一用户设备101切换链路，且未中断第一用户设备101的业务传输，和/或，第一网络设备102根据第一指示信息，通知第二网络设备104：第二用户设备103切换链路，且未中断第二用户设备103的业务传输。
在前述两个用户设备的状态分别受不同网络设备控制的场景下，若第一指示信息用于指示网络设备将用户设备切换到Inactive，则第一网络设备102根据第一指示信息，将第一用户设备101切换到Inactive，和/或，第一网络设备102根据第一指示信息，通知第二网 络设备104将第二用户设备103切换到Inactive。
本申请实施例中，用户设备包括但不限定于接入终端、用户单元、用户站、移动站、移动台(Mobile Station，MS)、远方站、远程终端、移动设备、用户终端、终端设备(Terminal Equipment)、无线通信设备、用户代理或用户装置。用户设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，简称WLL)站、个人数字助理(Personal Digital Assistant，简称PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，简称PLMN)中的终端设备等。
本申请实施例中，第一网络设备与第二网络设备包括但不限定于基站等可提供无线通信通能的装置。基站包括但不限定于在2G网络中提供基站功能的设备，比如：基地无线收发站(英文：Base Transceiver Station，简称BTS)，3G网络中提供基站功能的设备，比如：节点B(NodeB)，在4G网络中提供基站功能的设备，比如：演进的节点B(Evolved NodeB，eNB)，在无线局域网络(Wireless Local Area Networks，简称WLAN)中提供基站功能的设备，比如：接入点(Access Point，简称AP)，5G新空口(New Radio，简称NR)中的提供基站功能的设备Gnb，以及继续演进的节点B(ng-eNB)，其中gNB和终端之间采用NR技术进行通信，ng-eNB和终端之间采用E-UTRA(Evolved Universal Terrestrial Radio Access，演进的通用陆地无线接入)技术进行通信，gNB和ng-eNB均可连接到5G核心网。本申请实施例中的基站还包含在未来新的通信系统中提供基站功能的设备等。
本申请实施例中，在前述两个用户设备的状态受同一网络设备控制的场景下，第一用户设备101与第一网络设备102之间的通信接口为Uu接口，第二用户设备103与第一网络设备102之间的通信接口为Uu接口；第一用户设备101与第二用户设备103之间的直连通信接口为PC5接口；第一网络设备102还可与核心网105通信。
本申请实施例中，在前述两个用户设备的状态分别受不同网络设备控制的场景下，第一用户设备101通过Uu接口与第一网络设备102通信，第二用户设备103通过Uu接口与第二网络设备104通信；第一用户设备101与第二用户设备103之间的直连通信接口为PC5接口；第一网络设备102与第二网络设备104通过核心网105通信，即第一网络设备102可将相应的通知消息通过核心网105传输给第二网络设备104，又即若第一网络设备102和第二网络设备104均为基站，则第一网络设备102通过基站接口通知第二网络设备104执行前述通知操作。
需要说明的是，第一用户设备101与第二用户设备103除通过本申请实施例所述的PC5链路进行直连链路通信外，还可通过其他类型直连链路通信；在直连链路上所传输的业务主要是ProSe(Proximity-Based Services，接近基础服务)，进而相同的业务在直连链路上传输时和在Uu链路上传输时的传输业务配置可不相同。
相应地，本申请实施例提供的一种链路切换指示方法，本说明书提供了如实施例所述的方法操作步骤，但基于常规或者无创造性的劳动可以包括更多或者更少的操作步骤。实施例中列举的步骤顺序仅仅为众多步骤执行顺序中的一种方式，不代表唯一的执行顺序。在实际中的终端或者存储介质产品执行时，可以按照实施例所示的方法顺序执行或者并行执行。所述链路切换指示方法，应用于第一用户设备中，所述方法包括：
S21：向网络设备发送第一指示信息。
其中，所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的Context(上下文)。
本申请实施例，能够根据保留的用户设备的传输业务配置和/或所述用户设备的Context，快速恢复切换链路传输的业务对应的原链路连接，减少第一用户设备数据传输的时延，有效避免数据传输中断。
请参阅图2，图2为本申请实施例提供的一种链路切换指示方法的流程示意图，本说明书提供了如实施例或流程图所述的方法操作步骤，但基于常规或者无创造性的劳动可以包括更多或者更少的操作步骤。实施例中列举的步骤顺序仅仅为众多步骤执行顺序中的一种方式，不代表唯一的执行顺序。在实际中的终端或者存储介质产品执行时，可以按照实施例或者附图所示的方法顺序执行或者并行执行。具体如图2所示，所述链路切换指示方法，应用于网络设备中，所述方法包括：
S201：接收第一指示信息；
若所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则执行步骤S202。
S202：根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
本申请实施例，能够根据保留的用户设备的传输业务配置和/或所述用户设备的Context，快速恢复切换链路传输的业务对应的原链路连接，减少第一用户设备数据传输的时延，有效避免数据传输中断。
需要说明的是步骤S21、步骤S201至S202描述的方法的具体实现可参考后续实施例的描述。
请参阅图3，图3为本申请实施例提供的一种链路切换指示方法的交互流程示意图，本说明书提供了如实施例或流程图所述的方法操作步骤，但基于常规或者无创造性的劳动可以包括更多或者更少的操作步骤。实施例中列举的步骤顺序仅仅为众多步骤执行顺序中的一种方式，不代表唯一的执行顺序。在实际中的终端或者存储介质产品执行时，可以按照实施例或者附图所示的方法顺序执行或者并行执行。具体如图3所示，所述方法包括：
若所述第一用户设备建立PC5链路，则执行步骤S301。
S301：第一用户设备向网络设备发送第一指示信息。
其中，所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
本申请实施例中，所述第一指示信息指示的保留用户设备的传输业务配置，是指用户设备可通过PC5接口传输的业务的配置，即第一用户设备与第二用户设备之间可通过PC5接口传输的业务的配置。
本申请实施例中，所述可通过PC5接口传输的业务可对应一个或多个无线承载，所述保留用户设备的传输业务配置可以是所述一个或多个无线承载的配置，包括：MAC(物理)层或用户设备所在小区组的参数或测量等配置，所述一个或多个无线承载的配置可以作为用户设备的上下文存储在网络设备中。
本申请实施例中，所述保留的用户设备的传输业务配置包括：在Uu链路上传输的可通过PC5接口传输的业务的配置。
本申请实施例中，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信，即第一用户设备与第二用户设备通过Uu链路传输业务。在建立PC5链路后，所述第一用户设备与第二用户设备通过所述PC5链路通信，即在第一用户设备建立PC5链路后，第一用户设备与第二用户设备通过PC5链路通信；第一用户设备可将原本在Uu链路上传输的全部或部分业务转移到PC5链路上继续传输，即可在PC5链路上传输原本在Uu链路传输的可通过PC5接口传输的业务。
本申请实施例中，除第一用户设备建立PC5链路的场景，第一用户设备也可在接收到用于指示保留用户设备的传输业务配置和/或上下文Context的指示信息的场景，或者接收到相关业务可以通过PC5链路传输的指示信息的场景，比如：第一用户设备在接收到NAS(Non-Access-Stratum，非接入层)发送的指示信息的场景，根据接收到的指示信息生成并向网络设备发送第一指示信息，第一用户设备还可以在其它有需求的场景下，向网络设备发送第一指示信息，在此不做赘述。
本申请实施例中，所述第一用户设备还可通过Uu链路(Uu接口)与网络设备通信，即第一用户设备可通过Uu链路向网络设备发送第一指示信息。所述第一用户设备可在建立与第二用户设备之间的PC5链路的之前或之后或同时，即在接近建立PC5链路的时间段内，向网络设备发送第一指示信息。
本申请实施例中，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输；和/或：所述第一指示信息还用于指示所述网络设备将所述用户设备切换到非激活态Inactive。
其中，用户设备切换链路，且未中断所述用户设备的业务传输是指第一用户设备将与第二用户设备传输业务的链路由Uu链路切换到PC5链路，但是原来在Uu链路上传输的可通过PC5接口传输的业务并未中断传输，而是迁移到PC5链路上继续传输，或者在PC5 链路上传输新的业务。
需要说明的是，若用户设备原本在Uu链路上传输的业务均是可切换到PC5链路传输的业务，则第一用户设备可向网络设备发送用于指示网络设备将所述用户设备切换到非激活态Inactive的第一指示信息。
本申请实施例中，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。第一用户设备向网络设备发送第一指示信息，以指示网络设备保留第一用户设备和/或第二用户设备的传输业务配置和/或上下文Context，以在后续用户设备需恢复Uu链路以传输业务时，直接使用保留的用户设备传输业务配置和/或上下文Context快速恢复Uu链路连接，减少第一用户设备与第二用户设备之间数据传输的时延，避免第一用户设备与第二用户设备之间数据传输中断。
S302：第一用户设备通过所述PC5链路，获取所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
具体地，第一用户设备通过所述PC5链路与第二用户设备交互，以从第二用户设备获取第二用户设备的标识信息和/或第二用户设备的小区标识信息；第二用户设备通过所述PC5链路，向第一用户设备发送第二用户设备的标识信息和/或第二用户设备的小区标识信息。
本申请实施例中，所述第二用户设备的标识信息包括Source ID(源标识)、Destination ID(目的标识)、临时移动用户识别码TMSI(Temporary Mobile Subscriber Identity，TMSI)、C-RNTI(Cell-Radio Network Temporary Identifier，小区无线网络临时标识)中的至少一项。
本申请实施例中，所述第二用户设备的小区标识信息是指第二用户设备所在小区的小区标识；所述小区标识包括PCI(Physical Cell ID，物理小区标识)和/或基站标识。
S303：第一用户设备向所述网络设备发送所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
具体地，第一用户设备通过与网络设备通信的Uu链路(Uu接口)向网络设备发送所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
需要说明的是，步骤S303还可在步骤S301之前或同时执行，并不只限定于在步骤S301之后执行。
S304：网络设备接收第三指示信息；和/或：网络设备接收所述第一用户设备发送的所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
本申请实施例中，所述第三指示信息，用于指示所述第一用户设备中的一个或者多个flow(业务流)被允许由Uu链路承载切换到PC5链路承载。网络设备接收到第三指示信息后，即可知晓可能会由Uu链路承载切换到PC5链路承载的第一用户设备中的一个或者多个flow和/或所述一个或多个flow对应的无线承载。
本申请实施例中，所述第三指示信息可由其他外部网络通过核心网发送给网络设备， 也可由用户设备发送给网络设备，还可由网络设备所在网络中的网元通过后台配置的方式配置给网络设备，还可通过其他方式发送或配置给网络设备，在此不做赘述。
本申请实施例中，所述第三指示信息，还用于指示所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
网络设备可通过第三指示信息，获得所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息，还可直接从第一用户设备获得所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息，以根据所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息确定与第一用户设备对端通信的第二用户设备，进而网络设备可对应保留第二用户设备的传输业务配置和/或第二用户设备的上下文Context等与恢复Uu链路连接的相关配置。
S305：网络设备接收第一指示信息。
本申请实施例中，所述第一指示信息是若所述第一用户设备建立PC5链路，则由第一用户设备向所述网络设备发送的；所述第一用户设备与第二用户设备通过所述PC5链路通信，即在第一用户设备建立PC5链路后，第一用户设备与第二用户设备通过所述PC5链路通信以传输业务。
本申请实施例中，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信，即通过Uu链路传输业务。
本申请实施例中，若所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则执行步骤S306。
需要说明的是，步骤S305还可在步骤S304之前或同时执行，并不限定于只在步骤S304之后执行。
S306：网络设备根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
本申请实施例中，若所述第一指示信息用于指示所述网络设备将所述用户设备切换到非激活态Inactive，则网络设备根据所述第一指示信息，将所述用户设备切换到非激活态Inactive。
本申请实施例中，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路，即告知网络设备：用户设备已建立PC5链路；和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输，即告知网络设备：用户设备切换链路，且未中断所述用户设备的业务传输。
本申请实施例中，若第一用户设备需要恢复在Uu链路上传输业务，比如：将第一用户设备与第二用户设备之间原本在Uu链路传输的业务转移到PC5链路传输后，又需要将这些业务恢复到Uu链路上传输，则执行步骤S307。
S307：第一用户设备向所述网络设备发送第二指示信息，以使所述网络设备根据所述 第二指示信息恢复或建立Uu链路。
本申请实施例中，第一用户设备可接收用于指示恢复Uu链路以传输业务的指示信息，根据该指示信息，生成并向网络设备发送第二指示信息；或者，第一用户设备可在检测PC5链路的信号变差时，比如：在PC5链路的信号强度低于预设信号强度时，自动生成并向网络设备发送第二指示信息；或者，第一用户设备在有其他新的需要通过Uu链路传输的业务时，自动生成并向网络设备发送第二指示信息。
本申请实施例中，第一用户设备通过与网络设备通信的Uu链路(Uu接口)向网络设备发送第二指示信息。
其中，所述第二指示信息，用于指示网络设备恢复或建立Uu链路，以使第一用户设备与第二用户设备通过该Uu链路传输业务，比如：将在PC5链路上传输的业务切换到Uu链路上传输。
本申请实施例中，所述第二指示信息，用于指示所述网络设备保留在所述PC5链路上传输的业务配置，即保留第一用户设备与第二用户设备当前在PC5链路上传输的业务原本在Uu链路上传输时的相关Uu链路的配置，比如：业务在Uu链路上传输的无线承载配置和其他测量等配置，相关Uu链路的配置可以是根据步骤S306保留的所述用户设备的传输业务配置和/或所述用户设备的上下文Context获得的。
和/或：所述第二指示信息，用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置，即恢复由在Uu链路切换到当前在PC5链路上传输的业务原本在Uu链路上传输时的相关Uu链路的配置，相关Uu链路的配置可以是根据步骤S306保留的所述用户设备的传输业务配置和/或所述用户设备的上下文Context获得的。
具体地，若网络设备在Uu链路上恢复在PC5链路上传输的业务配置，则第一用户设备可在Uu链路上继续传输原本在PC5链路上传输的未完成的传输业务。
和/或：所述第二指示信息，具体用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置，即网络设备可根据步骤S306保留的所述用户设备的传输业务配置和/或所述用户设备的上下文Context，快速建立新的业务承载和/或生成新的传输业务配置，以使第一用户设备通过新的业务承载和/或新的传输业务配置执行新的传输业务，新的传输业务可能与第二用户设备相关，比如：第一用户设备执行与第二用户设备的视频通话传输业务，也可能与第二用户设备无关，比如：第一用户设备加载网页的传输业务。
S308：网络设备接收所述第一用户设备发送的第二指示信息。
S309：网络设备根据第二指示信息，恢复或建立Uu链路，以使第一用户设备与第二用户设备通过该Uu链路传输业务。
本申请实施例中，若所述第二指示信息用于指示所述网络设备保留在所述PC5链路上传输的业务配置，则网络设备根据所述第二指示信息，保留在所述PC5链路上传输的业务配置。
本申请实施例中，若所述第二指示信息用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置，则网络设备根据所述第二指示信息，在所述Uu链路上恢复在所述PC5链路上传输的业务配置。
本申请实施例中，若所述第二指示信息用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置，则网络设备根据所述第二指示信息，建立新的业务承载和/或生成新的传输业务配置。
本申请实施例中，第一用户设备向网络设备发送第一指示信息，以指示网络设备保留用户设备的传输业务配置和/或用户设备的Context，避免第一用户设备与第二用户设备由Uu链路切换到PC5链路传输业务时，完全删除Uu链路连接，造成在恢复Uu链路传输业务时，需花费较长的时间重新建立对应的Uu链路连接。
本申请实施例，能够根据保留的用户设备的传输业务配置和/或所述用户设备的Context，快速恢复切换链路传输的业务对应的原链路连接，减少第一用户设备数据传输的时延，有效避免数据传输中断，提高了传输数据的实时性。
请参阅图4，图4为本申请实施例提供的一种链路切换指示设备的结构示意图，具体如图4所示，所述链路切换指示设备，包括：存储装置401和处理器402；并且所述链路切换指示设备还可以包括数据接口403、用户接口404。各个硬件之间还可以通过各种类型的总线建立连接。
通过所述数据接口403，所述链路切换指示设备可以和其他终端、服务器等设备之间交互数据；所述用户接口404用于实现用户与所述链路切换指示设备之间的人机交互；所述用户接口404可提供触摸显示屏、物理按键等实现用户与所述链路切换指示设备之间的人机交互。
所述存储装置401可以包括易失性存储器(Volatile memory)，例如随机存取存储器(Random-Access Memory，RAM)；存储装置401也可以包括非易失性存储器(Non-Volatile Memory)，例如快闪存储器(Flash Memory)，固态硬盘(Solid-State Drive，SSD)等；存储装置401还可以包括上述种类的存储器的组合。
所述处理器402可以是中央处理器(Central Processing Unit，CPU)。所述处理器402还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(Application-Specific Integrated Circuit，ASIC)，可编程逻辑器件(Programmable Logic Device，PLD)等。上述PLD可以是现场可编程逻辑门阵列(Field-Programmable Gate Array，FPGA)，通用阵列逻辑(Generic Array Logic，GAL)等。
对于所述链路切换指示设备为第一用户设备的情况：
所述存储装置401，用于存储程序代码；
所述处理器402，在调用所述存储代码时，用于向网络设备发送第一指示信息；
所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用 户设备的上下文Context。
在一个实施例中，所述处理器402，具体用于若所述第一用户设备建立PC5链路，则向网络设备发送第一指示信息；所述第一用户设备与第二用户设备通过所述PC5链路通信。
在一个实施例中，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信。
在一个实施例中，所述处理器402，还用于向所述网络设备发送所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述处理器402，还用于通过所述PC5链路，获取所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；
和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输；
和/或：所述第一指示信息还用于指示所述网络设备将所述用户设备切换到非激活态Inactive。
在一个实施例中，所述处理器402，还用于向所述网络设备发送第二指示信息，以使所述网络设备根据所述第二指示信息恢复或建立Uu链路；
所述第二指示信息，用于指示所述网络设备保留在所述PC5链路上传输的业务配置；
和/或：所述第二指示信息，用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置；
和/或：所述第二指示信息，用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置。
在一个实施例中，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。
在一个实施例中，所述第二用户设备的标识信息包括源标识Source ID、目的标识Destination ID、临时移动用户识别码TMSI、小区无线网络临时标识C-RNTI中的至少一项。
在一个实施例中，所述第二用户设备的小区标识信息是指第二用户设备所在小区的小区标识；所述小区标识包括物理小区标识PCI和/或基站标识。
对于所述链路切换指示设备为网络设备的情况：
所述存储装置401，用于存储程序代码；
所述处理器402，在调用所述存储代码时，用于接收第一指示信息；
若所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
在一个实施例中，所述第一指示信息是若所述第一用户设备建立PC5链路，则由第一用户设备向所述网络设备发送的；所述第一用户设备与第二用户设备通过所述PC5链路通 信。
在一个实施例中，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信。
在一个实施例中，所述处理器402，还用于接收第三指示信息；所述第三指示信息，用于指示所述第一用户设备中的一个或者多个业务流flow被允许由Uu链路承载切换到PC5链路承载。
在一个实施例中，所述第三指示信息，还用于指示所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述处理器402，还用于接收所述第一用户设备发送的所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述处理器402，还用于若所述第一指示信息用于指示所述网络设备将所述用户设备切换到非激活态Inactive，则根据所述第一指示信息，将所述用户设备切换到非激活态Inactive。
在一个实施例中，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；
和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输。
在一个实施例中，所述处理器402，还用于接收所述第一用户设备发送的第二指示信息；
若所述第二指示信息用于指示所述网络设备保留在所述PC5链路上传输的业务配置，则根据所述第二指示信息，保留在所述PC5链路上传输的业务配置；
若所述第二指示信息用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置，则根据所述第二指示信息，在所述Uu链路上恢复在所述PC5链路上传输的业务配置；
若所述第二指示信息用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置，则根据所述第二指示信息，建立新的业务承载和/或生成新的传输业务配置。
在一个实施例中，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。
在一个实施例中，所述第二用户设备标识包括源标识Source ID、目的标识Destination ID、临时移动用户识别码TMSI、小区无线网络临时标识C-RNTI中的至少一项。
在一个实施例中，所述第二用户设备所在小区的小区标识包括物理小区标识PCI和/或基站标识。
请参阅图5，图5为本申请实施例提供的一种链路切换指示装置的结构示意图，具体如图5所示，所述链路切换指示装置包括：
发送模块501，用于向网络设备发送第一指示信息；
所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用 户设备的上下文Context。
在一个实施例中，所述发送模块501，具体用于若所述第一用户设备建立PC5链路，则向网络设备发送第一指示信息；所述第一用户设备与第二用户设备通过所述PC5链路通信。
在一个实施例中，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信。
在一个实施例中，所述发送模块501，还用于向所述网络设备发送所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述链路切换指示装置还包括：
获取模块，用于通过所述PC5链路，获取所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；
和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输；
和/或：所述第一指示信息还用于指示所述网络设备将所述用户设备切换到非激活态Inactive。
在一个实施例中，所述发送模块501，还用于向向所述网络设备发送第二指示信息，以使所述网络设备根据所述第二指示信息恢复或建立Uu链路；
所述第二指示信息，用于指示所述网络设备保留在所述PC5链路上传输的业务配置；
和/或：所述第二指示信息，用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置；
和/或：所述第二指示信息，用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置。
在一个实施例中，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。
在一个实施例中，所述第二用户设备的标识信息包括源标识Source ID、目的标识Destination ID、临时移动用户识别码TMSI、小区无线网络临时标识C-RNTI中的至少一项。
在一个实施例中，所述第二用户设备的小区标识信息是指第二用户设备所在小区的小区标识；所述小区标识包括物理小区标识PCI和/或基站标识。
请参阅图6，图6为本申请实施例提供的另一种链路切换指示装置的结构示意图，具体如图6所示，所述链路切换指示装置包括：
接收模块601，用于接收第一指示信息；
保留模块602，用于若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
在一个实施例中，所述第一指示信息是若所述第一用户设备建立PC5链路，则由第一用户设备向所述网络设备发送的；所述第一用户设备与第二用户设备通过所述PC5链路通信。
在一个实施例中，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信。
在一个实施例中，所述接收模块601，还用于接收第三指示信息；所述第三指示信息，用于指示所述第一用户设备中的一个或者多个业务流flow被允许由Uu链路承载切换到PC5链路承载。
在一个实施例中，所述第三指示信息，还用于指示所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述接收模块601，还用于接收所述第一用户设备发送的所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述链路切换指示装置包括：
切换模块，用于若所述第一指示信息用于指示所述网络设备将所述用户设备切换到非激活态Inactive，则根据所述第一指示信息，将所述用户设备切换到非激活态Inactive。
在一个实施例中，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；
和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输。
在一个实施例中，所述接收模块601，还用于接收所述第一用户设备发送的第二指示信息；
所述保留模块602，还用于若所述第二指示信息用于指示所述网络设备保留在所述PC5链路上传输的业务配置，则根据所述第二指示信息，保留在所述PC5链路上传输的业务配置；
所述链路切换指示装置还包括：
恢复模块，用于若所述第二指示信息用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置，则根据所述第二指示信息，在所述Uu链路上恢复在所述PC5链路上传输的业务配置；
建立模块，用于若所述第二指示信息用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置，则根据所述第二指示信息，建立新的业务承载和/或生成新的传输业务配置。
在一个实施例中，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。
在一个实施例中，所述第二用户设备标识包括源标识Source ID、目的标识Destination ID、临时移动用户识别码TMSI、小区无线网络临时标识C-RNTI中的至少一项。
在一个实施例中，所述第二用户设备所在小区的小区标识包括物理小区标识PCI和/或 基站标识。
相应地，本发明实施例还提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，所述计算机程序使得计算机执行本申请步骤S21、步骤S301至S303、S307中任意实施例描述的方法。可以理解的是，此处的计算机存储介质既可以包括智能终端中的内置存储介质，当然也可以包括智能终端所支持的扩展存储介质。计算机存储介质提供存储空间，该存储空间存储了智能终端的操作系统。并且，在该存储空间中还存放了适于被处理器加载并执行的一条或一条以上的指令，这些指令可以是一个或一个以上的计算机程序(包括程序代码)。需要说明的是，此处的计算机存储介质可以是高速RAM存储器，也可以是非不稳定的存储器(Non-Volatile Memory)，例如至少一个磁盘存储器；可选的还可以是至少一个位于远离前述处理器的计算机存储介质。
相应地，本发明实施例还提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，所述计算机程序使得计算机执行本申请步骤S201至S202、步骤S304至S306、S308至S309中任意实施例描述的方法。可以理解的是，此处的计算机存储介质既可以包括智能终端中的内置存储介质，当然也可以包括智能终端所支持的扩展存储介质。计算机存储介质提供存储空间，该存储空间存储了智能终端的操作系统。并且，在该存储空间中还存放了适于被处理器加载并执行的一条或一条以上的指令，这些指令可以是一个或一个以上的计算机程序(包括程序代码)。需要说明的是，此处的计算机存储介质可以是高速RAM存储器，也可以是非不稳定的存储器(Non-Volatile Memory)，例如至少一个磁盘存储器；可选的还可以是至少一个位于远离前述处理器的计算机存储介质。
相应地，本申请实施例提供一种芯片，所述芯片，用于输出第一指示信息，以便于向网络设备发送所述第一指示信息；
所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
在一个实施例中，所述芯片，具体用于若所述第一用户设备建立PC5链路，则输出第一指示信息，以便于向网络设备发送第一指示信息；所述第一用户设备与第二用户设备通过所述PC5链路通信。
在一个实施例中，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信。
在一个实施例中，所述芯片，还用于输出所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息，以便于向所述网络设备发送所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述芯片，还用于通过所述PC5链路，获取所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；
和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输；
和/或：所述第一指示信息还用于指示所述网络设备将所述用户设备切换到非激活态Inactive。
在一个实施例中，所述芯片还用于输出第二指示信息，以便于向所述网络设备发送所述第二指示信息，以使所述网络设备根据所述第二指示信息恢复或建立Uu链路；
所述第二指示信息，用于指示所述网络设备保留在所述PC5链路上传输的业务配置；
和/或：所述第二指示信息，用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置；
和/或：所述第二指示信息，用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置。
在一个实施例中，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。
在一个实施例中，所述第二用户设备的标识信息包括源标识Source ID、目的标识Destination ID、临时移动用户识别码TMSI、小区无线网络临时标识C-RNTI中的至少一项。
在一个实施例中，所述第二用户设备的小区标识信息是指第二用户设备所在小区的小区标识；所述小区标识包括物理小区标识PCI和/或基站标识。
需要说明的是，所述芯片可以执行上述步骤S21和图3方法实施例中第一用户设备的相关步骤，具体可参见上述各个步骤所提供的实现方式，在此不再赘述。
在一个实施例中，上述芯片包括至少一个处理器、至少一个第一存储器和至少一个第二存储器；其中，前述至少一个第一存储器和前述至少一个处理器通过线路互联，前述第一存储器中存储有指令；前述至少一个第二存储器和前述至少一个处理器通过线路互联，前述第二存储器中存储前述方法实施例中需要存储的数据。
对于应用于或集成于芯片的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，或者，至少部分模块可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块可以采用电路等硬件方式实现。
相应地，本申请实施例还提供一种芯片，所述芯片，用于接收第一指示信息；若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
在一个实施例中，所述第一指示信息是若所述第一用户设备建立PC5链路，则由第一用户设备向所述网络设备发送的；所述第一用户设备与第二用户设备通过所述PC5链路通信。
在一个实施例中，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信。
在一个实施例中，所述芯片，还用于接收第三指示信息；所述第三指示信息，用于指示所述第一用户设备中的一个或者多个业务流flow被允许由Uu链路承载切换到PC5链路承载。
在一个实施例中，所述第三指示信息，还用于指示所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述芯片，还用于接收所述第一用户设备发送的所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述芯片，还用于若所述第一指示信息用于指示所述网络设备将所述用户设备切换到非激活态Inactive，则根据所述第一指示信息，将所述用户设备切换到非激活态Inactive。
在一个实施例中，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；
和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输。
在一个实施例中，所述芯片，还用于接收所述第一用户设备发送的第二指示信息；
若所述第二指示信息用于指示所述网络设备保留在所述PC5链路上传输的业务配置，则根据所述第二指示信息，保留在所述PC5链路上传输的业务配置；
若所述第二指示信息用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置，则根据所述第二指示信息，在所述Uu链路上恢复在所述PC5链路上传输的业务配置；
若所述第二指示信息用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置，则根据所述第二指示信息，建立新的业务承载和/或生成新的传输业务配置。
在一个实施例中，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。
在一个实施例中，所述第二用户设备标识包括源标识Source ID、目的标识Destination ID、临时移动用户识别码TMSI、小区无线网络临时标识C-RNTI中的至少一项。
在一个实施例中，所述第二用户设备所在小区的小区标识包括物理小区标识PCI和/或基站标识。
需要说明的是，所述芯片可以执行上述图2和图3方法实施例中网络设备的相关步骤，具体可参见上述各个步骤所提供的实现方式，在此不再赘述。
在一个实施例中，上述芯片包括至少一个处理器、至少一个第一存储器和至少一个第二存储器；其中，前述至少一个第一存储器和前述至少一个处理器通过线路互联，前述第一存储器中存储有指令；前述至少一个第二存储器和前述至少一个处理器通过线路互联，前述第二存储器中存储前述方法实施例中需要存储的数据。
请参阅图7，图7为本申请实施例提供的一种模组设备的结构示意图，所述模组设备包括输出接口701，其中：
所述输出接口701，用于输出第一指示信息，以便于向网络设备发送所述第一指示信息；
所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
在一个实施例中，所述输出接口701，具体用于若所述第一用户设备建立PC5链路，则输出第一指示信息，以便于向网络设备发送所述第一指示信息；所述第一用户设备与第二用户设备通过所述PC5链路通信。
在一个实施例中，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信。
在一个实施例中，所述输出接口701，具体用于输出所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息，以便于向所述网络设备发送所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述模组设备还包括：
输入接口，用于通过所述PC5链路，获取所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；
和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输；
和/或：所述第一指示信息还用于指示所述网络设备将所述用户设备切换到非激活态Inactive。
在一个实施例中，所述输出接口701，还用于输出第二指示信息，以便于向所述网络设备发送所述第二指示信息，以使所述网络设备根据所述第二指示信息恢复或建立Uu链路；
所述第二指示信息，用于指示所述网络设备保留在所述PC5链路上传输的业务配置；
和/或：所述第二指示信息，用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置；
和/或：所述第二指示信息，用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置。
在一个实施例中，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。
在一个实施例中，所述第二用户设备的标识信息包括源标识Source ID、目的标识Destination ID、临时移动用户识别码TMSI、小区无线网络临时标识C-RNTI中的至少一项。
在一个实施例中，所述第二用户设备的小区标识信息是指第二用户设备所在小区的小区标识；所述小区标识包括物理小区标识PCI和/或基站标识。
本申请实施例中，本申请实施例中不限定输出接口701和芯片模组(图7中未画出)之间的具体连接介质。本申请实施例在图7中以输出接口701和芯片模组之间通过总线702 连接，总线在图7中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线702可以分为地址总线、数据总线、控制总线等。为便于表示，图7中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
请参阅图8，图8为本申请实施例提供的另一种模组设备的结构示意图，所述模组设备包括输入接口801和芯片模组802，其中：
所述输入接口801，用于接收第一指示信息；
所述芯片模组802，用于若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
在一个实施例中，所述第一指示信息是若所述第一用户设备建立PC5链路，则由第一用户设备向所述网络设备发送的；所述第一用户设备与第二用户设备通过所述PC5链路通信。
在一个实施例中，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信。
在一个实施例中，所述输入接口801，还用于接收第三指示信息；所述第三指示信息，用于指示所述第一用户设备中的一个或者多个业务流flow被允许由Uu链路承载切换到PC5链路承载。
在一个实施例中，所述第三指示信息，还用于指示所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述输入接口801，还用于接收所述第一用户设备发送的所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
在一个实施例中，所述芯片模组802，还用于若所述第一指示信息用于指示所述网络设备将所述用户设备切换到非激活态Inactive，则根据所述第一指示信息，将所述用户设备切换到非激活态Inactive。
在一个实施例中，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；
和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输。
在一个实施例中，所述输入接口801，还用于接收所述第一用户设备发送的第二指示信息；
所述芯片模组802，还用于若所述第二指示信息用于指示所述网络设备保留在所述PC5链路上传输的业务配置，则根据所述第二指示信息，保留在所述PC5链路上传输的业务配置；
所述芯片模组802，还用于若所述第二指示信息用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置，则根据所述第二指示信息，在所述Uu链路上 恢复在所述PC5链路上传输的业务配置；
所述芯片模组802，还用于若所述第二指示信息用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置，则根据所述第二指示信息，建立新的业务承载和/或生成新的传输业务配置。
在一个实施例中，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。
在一个实施例中，所述第二用户设备标识包括源标识Source ID、目的标识Destination ID、临时移动用户识别码TMSI、小区无线网络临时标识C-RNTI中的至少一项。
在一个实施例中，所述第二用户设备所在小区的小区标识包括物理小区标识PCI和/或基站标识。
本申请实施例中，所述输入接口801和所述输出接口(图8中未画出)可以为相互独立的通信接口，也可以为同一个通信接口。本申请实施例中不限定输入接口801、芯片模组802以及输出接口之间的具体连接介质。本申请实施例在图8中以输入接口801、芯片模组802以及输出接口之间通过总线803连接，总线在图8中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线803可以分为地址总线、数据总线、控制总线等。为便于表示，图8中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
以上所揭露的仅为本发明的部分实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (32)

  1. 一种链路切换指示方法，其特征在于，所述方法包括：
    向网络设备发送第一指示信息；
    所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
  2. 如权利要求1所述的方法，其特征在于，所述向网络设备发送第一指示信息，包括：
    若所述第一用户设备建立PC5链路，则向网络设备发送第一指示信息；所述第一用户设备与第二用户设备通过所述PC5链路通信。
  3. 如权利要求2所述的方法，其特征在于，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信。
  4. 如权利要求2所述的方法，其特征在于，所述方法还包括：
    向所述网络设备发送所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
  5. 如权利要求2所述的方法，其特征在于，所述方法还包括：
    通过所述PC5链路，获取所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
  6. 如权利要求1所述的方法，其特征在于，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；
    和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输；
    和/或：所述第一指示信息还用于指示所述网络设备将所述用户设备切换到非激活态Inactive。
  7. 如权利要求2所述的方法，其特征在于，所述方法还包括：
    向所述网络设备发送第二指示信息，以使所述网络设备根据所述第二指示信息恢复或建立Uu链路；
    所述第二指示信息，用于指示所述网络设备保留在所述PC5链路上传输的业务配置；
    和/或：所述第二指示信息，用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上传输的业务配置；
    和/或：所述第二指示信息，用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置。
  8. 如权利要求2-7任一项所述的方法，其特征在于，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。
  9. 如权利要求4或5所述的方法，其特征在于，所述第二用户设备的标识信息包括源 标识Source ID、目的标识Destination ID、临时移动用户识别码TMSI、小区无线网络临时标识C-RNTI中的至少一项。
  10. 如权利要求4或5所述的方法，其特征在于，所述第二用户设备的小区标识信息是指第二用户设备所在小区的小区标识；所述小区标识包括物理小区标识PCI和/或基站标识。
  11. 一种链路切换指示方法，其特征在于，所述方法包括：
    接收第一指示信息；
    若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
  12. 如权利要求11所述的方法，其特征在于，所述第一指示信息是若所述第一用户设备建立PC5链路，则由第一用户设备向所述网络设备发送的；所述第一用户设备与第二用户设备通过所述PC5链路通信。
  13. 如权利要求12所述的方法，其特征在于，在所述第一用户设备建立PC5链路之前，所述第一用户设备与所述第二用户设备通过Uu链路通信。
  14. 如权利要求12所述的方法，其特征在于，所述方法还包括：
    接收第三指示信息；所述第三指示信息，用于指示所述第一用户设备中的一个或者多个业务流flow被允许由Uu链路承载切换到PC5链路承载。
  15. 如权利要求14所述的方法，其特征在于，所述第三指示信息，还用于指示所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
  16. 如权利要求12所述的方法，其特征在于，所述方法还包括：
    接收所述第一用户设备发送的所述第二用户设备的标识信息和/或所述第二用户设备的小区标识信息。
  17. 如权利要求12所述的方法，其特征在于，所述方法还包括：
    若所述第一指示信息用于指示所述网络设备将所述用户设备切换到非激活态Inactive，则根据所述第一指示信息，将所述用户设备切换到非激活态Inactive。
  18. 如权利要求12所述的方法，其特征在于，所述第一指示信息还用于指示所述用户设备已建立所述PC5链路；
    和/或：所述第一指示信息还用于指示所述用户设备切换链路，且未中断所述用户设备的业务传输。
  19. 如权利要求13所述的方法，其特征在于，所述方法还包括：
    接收所述第一用户设备发送的第二指示信息；
    若所述第二指示信息用于指示所述网络设备保留在所述PC5链路上传输的业务配置，则根据所述第二指示信息，保留在所述PC5链路上传输的业务配置；
    若所述第二指示信息用于指示所述网络设备在所述Uu链路上恢复在所述PC5链路上 传输的业务配置，则根据所述第二指示信息，在所述Uu链路上恢复在所述PC5链路上传输的业务配置；
    若所述第二指示信息用于指示所述网络设备建立新的业务承载和/或生成新的传输业务配置，则根据所述第二指示信息，建立新的业务承载和/或生成新的传输业务配置。
  20. 如权利要求12-19任一项所述的方法，其特征在于，所述用户设备包括：所述第一用户设备和/或所述第二用户设备。
  21. 如权利要求15或16所述的方法，其特征在于，所述第二用户设备标识包括源标识Source ID、目的标识Destination ID、临时移动用户识别码TMSI、小区无线网络临时标识C-RNTI中的至少一项。
  22. 如权利要求15或16所述的方法，其特征在于，所述第二用户设备所在小区的小区标识包括物理小区标识PCI和/或基站标识。
  23. 一种链路切换指示设备，其特征在于，所述链路切换指示设备包括：存储装置和处理器，
    所述存储装置，用于存储程序代码；
    所述处理器，在调用所述存储代码时，用于执行如权利要求1-10任一项所述的链路切换指示方法。
  24. 一种链路切换指示设备，其特征在于，所述链路切换指示设备包括：存储装置和处理器，
    所述存储装置，用于存储程序代码；
    所述处理器，在调用所述存储代码时，用于执行如权利要求11-22任一项所述的链路切换指示方法。
  25. 一种链路切换指示装置，其特征在于，所述链路切换指示装置包括：
    发送模块，用于向网络设备发送第一指示信息；
    所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
  26. 一种链路切换指示装置，其特征在于，所述链路切换指示装置包括：
    接收模块，用于接收第一指示信息；
    保留模块，用于若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
  27. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质用于存储计算机程序，所述计算机程序使得计算机执行权利要求1-10任一项所述的链路切换指示方法。
  28. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质用于存储计算机程序，所述计算机程序使得计算机执行权利要求11-22任一项所述的链路切换指示方法。
  29. 一种芯片，其特征在于，所述芯片，用于输出第一指示信息，以便于向网络设备发送所述第一指示信息；
    所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
  30. 一种芯片，其特征在于，所述芯片，用于接收第一指示信息；若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
  31. 一种模组设备，其特征在于，所述模组设备包括输出接口，其中：
    所述输出接口，用于输出第一指示信息，以便于向网络设备发送所述第一指示信息；
    所述第一指示信息用于指示所述网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context。
  32. 一种模组设备，其特征在于，所述模组设备包括输入接口和芯片模组，其中：
    所述输入接口，用于接收第一指示信息；
    所述芯片模组，用于若所述第一指示信息用于指示网络设备保留用户设备的传输业务配置和/或所述用户设备的上下文Context，则根据所述第一指示信息，保留所述用户设备的传输业务配置和/或所述用户设备的上下文Context。
PCT/CN2021/107912 2020-07-30 2021-07-22 链路切换指示方法、装置、存储介质、芯片及相关设备 WO2022022383A1 (zh)

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