WO2018170854A1 - 切换方法、终端设备和网络设备 - Google Patents

切换方法、终端设备和网络设备 Download PDF

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Publication number
WO2018170854A1
WO2018170854A1 PCT/CN2017/077927 CN2017077927W WO2018170854A1 WO 2018170854 A1 WO2018170854 A1 WO 2018170854A1 CN 2017077927 W CN2017077927 W CN 2017077927W WO 2018170854 A1 WO2018170854 A1 WO 2018170854A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
link
handover
cell
measurement result
Prior art date
Application number
PCT/CN2017/077927
Other languages
English (en)
French (fr)
Inventor
杨宁
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2017/077927 priority Critical patent/WO2018170854A1/zh
Priority to KR1020197029273A priority patent/KR102282751B1/ko
Priority to CN201780088255.XA priority patent/CN110402598B/zh
Priority to EP17902430.2A priority patent/EP3592034A4/en
Priority to JP2019552028A priority patent/JP6918962B2/ja
Publication of WO2018170854A1 publication Critical patent/WO2018170854A1/zh
Priority to US16/577,247 priority patent/US11051215B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • 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
    • H04W36/0009—Control or signalling for completing the hand-off for a plurality of users or terminals, e.g. group communication or moving wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Definitions

  • the embodiments of the present application relate to the field of wireless communications, and in particular, to a handover method, a terminal device, and a network device.
  • a remote user equipment (Remote User Equipment, for example, a "Remote UE"), for example, a wearable device, may be performed by a relay terminal, such as a relay user equipment (Relay User Equipment, referred to as "Relay UE").
  • the relay terminal can help the remote terminal complete the data transmission.
  • the relay terminal and the remote terminal may establish a control plane connection through the same base station or different base stations, and the relay terminal helps the remote terminal complete data forwarding. At this time, if the relay terminal or the remote terminal moves, the base station is required to switch to ensure the continuity of data transmission.
  • the relay terminal and the remote terminal are likely to be in the same location, for example, all on the user. At this time, it is very likely that the two phones perform the same speed movement in the same direction at the same time. If the cell switching needs to be performed during the mobile process, Generally, the base station separately performs handover of two terminal devices, so that if two terminals are switched to cells covered by different base stations, the relay transmission between the relay terminal and the remote terminal is greatly affected.
  • the embodiment of the present application provides a handover method, a terminal device, and a network device, which can perform effective relay transmission between the relay terminal and the remote terminal after the relay terminal and the remote terminal perform cell handover.
  • a handover method including: a first terminal device acquires a measurement result of a link, where the link includes a link between the first terminal device and a first network device, and the a link between the network device and the second terminal device; the first terminal device determines, according to the measurement result, a first handover scheme of the first terminal device and/or a second handover scenario of the second terminal device Switching scheme.
  • the terminal device determines the handover scheme of the two terminal devices by acquiring the link information of the relay terminal device and the link information of the remote terminal device, so that the two terminal devices perform cell handover. After the cell reselection, it can be located in the cell covered by the same network device as much as possible, so that after the cell handover of the relay terminal and the remote terminal, the relay terminal and the remote terminal can continue to be effectively relayed. transmission.
  • the terminal device may not determine the handover scheme by itself, but Better guarantee the continuity of services between terminal devices.
  • the first network device may select, as the first terminal device and the second terminal device, the cell covered by the same network device as the to-be-switched cell or the reselected cell to be accessed. For example, if there is a service data interaction between the first terminal device and the second terminal device, when the two terminal device mobile processes need to perform cell handover, the first network device determines the first handover scheme and the second handover scheme. According to the link measurement result of the two terminal devices, the cell covered by the same network device is selected as the cell to be switched for the first terminal device and the second terminal device as much as possible to ensure the service continuity of the terminal device, despite the handover.
  • the post signal strength is not optimal.
  • the link further includes a link between the first terminal device and the second terminal device.
  • the method further includes: the first terminal device sends a handover command to the second terminal device, where the handover command is used to indicate the second terminal The device performs the second handover scheme.
  • the first terminal device determines, according to the measurement result, a first handover scheme of the first terminal device and/or a second terminal device
  • the second switching scheme includes: the first terminal device determines the first switching scheme and/or the first according to a state in which the first terminal device and the second terminal device are located, and the measurement result Two switching schemes.
  • the first handover scheme includes a cell handover in which the first terminal device is covered by the first network device Up to the cell covered by the second network device, or the first terminal device does not perform cell handover;
  • the first handover scheme includes the first terminal device reselecting a cell covered by the second network device as a cell to be accessed, or the A terminal device does not perform cell reselection;
  • the second handover scheme includes that the second terminal device is switched by the cell covered by the first network device to a cell or other network device coverage covered by the second network device The cell, or the second terminal device does not perform cell handover;
  • the second handover scheme includes the second terminal device reselecting a cell covered by the second network device or a cell covered by another network device as a to-be-accessed The cell, or the second terminal device does not perform cell reselection.
  • the first terminal device determines, according to the measurement result, a first handover scheme of the first terminal device and/or a second terminal device
  • the second switching scheme includes: determining, by the first terminal device, whether a link connection is maintained between the first terminal device and the second terminal device according to the measurement result; Whether a link connection is maintained between a terminal device and the second terminal device, and determining the first handover scheme and/or the second handover scheme.
  • the first terminal device determines that a link connection is maintained between the first terminal device and the second terminal device, the first terminal device After the first handover scheme is executed and the second terminal device performs the second handover scheme, the first terminal device and the second terminal device are located in a cell covered by the same network device.
  • the method further includes: The first terminal device sends release indication information to the second terminal device, where the release indication information is used to instruct the second terminal device to release a link connection with the first terminal device.
  • the first terminal device determines, according to the measurement result, the first handover scheme of the first terminal device and/or the second terminal device Before the second switching solution, the method further includes: the first terminal device acquiring association information between the first terminal device and the second terminal device, where the association information includes the first terminal device and a pairing relationship or a connection relationship between the second terminal devices;
  • the first terminal device Determining, by the first terminal device, the first handover scheme of the first terminal device and/or the second handover scheme of the second terminal device, according to the measurement result, the first terminal device according to the And determining the first handover scheme and/or the second handover scheme by using the association information and the measurement result.
  • the method further includes: the first terminal device sending a switching message to the first network device
  • the handover information includes at least one of the following information: information of the first handover scheme, information of the second handover scheme, and the measurement result.
  • the first terminal device determines, according to the measurement result, the first handover scheme of the first terminal device and/or the second terminal device Before the second switching solution, the method further includes: the first terminal device receiving the configuration information sent by the first network device, where the configuration information is used to indicate that the first terminal device preferentially sends the first terminal
  • the information about the cell to be switched, the cell to be switched is such that the first terminal device and the second terminal device satisfy the signal strength condition and are located in a cell covered by the same network device.
  • the first terminal device is a relay terminal device
  • the second terminal device is a remote terminal device
  • the first terminal device is a remote terminal device.
  • the measurement result of the link includes a measurement result of a link quality of the link, and/or a measurement result of a link state of the link.
  • the acquiring, by the first terminal device, the measurement result of the link that: the first terminal device determines the first terminal device and the first network device And a measurement result of the link between the first network device and the second terminal device sent by the second terminal device.
  • the acquiring, by the first terminal device, the measurement result of the link further includes: determining, by the first terminal device, the first terminal device and the second terminal device The measurement result of the link between the first terminal device and the second terminal device sent by the second terminal device;
  • the acquiring, by the first terminal device, the measurement result of the link includes: acquiring, by the first terminal device, the bearer sent by the second terminal device in the adaptation layer or The measurement result of the link in the connection port protocol stack PC5.
  • a second aspect provides a handover method, including: acquiring, by a second terminal device, a measurement result of a link, where the link includes a measurement result of a link between the second terminal device and the first network device; The second terminal device sends the measurement result to the first terminal device, where the measurement result is used by the first terminal device to determine a second handover scheme of the second terminal device; the second terminal device receives And the switching command sent by the first terminal device, and executing the second switching solution according to the switching command.
  • the terminal device can report the switching scheme of the two terminal devices according to the link information of the two terminal devices by reporting the link information of the terminal device to the other terminal device, so that the two terminal devices perform the cell. After handover or cell reselection, it can be located in the cell covered by the same network device as much as possible, so that after the relay terminal and the remote terminal perform cell handover, the relay terminal and the remote terminal can continue to effectively relay. transmission.
  • the terminal device may not determine the handover scheme by itself, but Better guarantee the continuity of services between terminal devices.
  • the link further includes a link between the first terminal device and the second terminal device.
  • the first handover scheme includes a cell handover in which the first terminal device is covered by the first network device Up to the cell covered by the second network device, or the first terminal device does not perform cell handover;
  • the first handover scheme includes the first terminal device reselecting a cell covered by the second network device as a cell to be accessed, or the A terminal device does not perform cell reselection;
  • the second handover scheme includes that the second terminal device is switched by the cell covered by the first network device to a cell or other network device coverage covered by the second network device The cell, or the second terminal device does not perform cell handover;
  • the second handover scheme includes the second terminal device reselecting a cell covered by the second network device or a cell covered by another network device as a to-be-accessed The cell, or the second terminal device does not perform cell reselection.
  • the second terminal device After the second handover scheme is executed, the second terminal device and the first terminal device are located in a cell covered by the same network device.
  • the method further includes: The second terminal device receives the release indication information sent by the first terminal device, and releases the link connection with the first terminal device according to the release indication information.
  • the first terminal device is a relay terminal device
  • the second terminal device is a remote terminal device
  • the first terminal device is a remote terminal device.
  • the device, the second terminal device is a relay terminal device.
  • the measurement result of the link includes a measurement result of a link quality of the link, and/or a measurement result of a link state of the link.
  • the sending, by the second terminal device, the measurement result to the first terminal device includes: sending, by the second terminal device, the first terminal device The measurement results carried in the adaptation layer or direct connection protocol stack PC5.
  • a third aspect provides a handover method, including: receiving, by a first network device, handover information sent by a first terminal device, where the handover information includes at least one of the following information: the first terminal device determines the a first handover scheme of the first terminal device, a second handover scheme of the second terminal device, and a measurement result of the link, where the link includes a link between the first terminal device and the first network device, And a link between the second terminal device and the first network device; the first network device confirms the first handover scheme and/or the second handover scheme according to the handover information .
  • the network device After receiving the information about the handover scheme determined by the terminal device and sent by the terminal device, the network device confirms the handover scheme, so as to determine whether the handover scheme of the relay terminal device and the remote terminal device is appropriate.
  • the handover scheme determined by the terminal device enables the two terminal devices to be located in the cell that they cover as much as possible after the cell handover or the cell reselection, so that after the relay terminal and the remote terminal perform cell handover, The effective relay transmission continues between the relay terminal and the remote terminal.
  • the link further includes a link between the first terminal device and the second terminal device.
  • the first switching scheme includes: switching, by the first terminal device, a cell covered by the first network device to a cell covered by the second network device, Or the first terminal device does not perform cell handover;
  • the second handover scheme includes the second terminal device reselecting a cell covered by the second network device or a cell covered by another network device as a cell to be accessed, Or the second terminal device does not perform cell reselection.
  • the method further includes: the first network device sends configuration information to the terminal device, where the configuration information is used to indicate that the first terminal device is prioritized Sending information about a cell to be handed over by the first terminal device, where the cell to be switched is enabled And the first terminal device and the second terminal device satisfy a signal strength condition and are located in a cell covered by the same network device.
  • the measurement result of the link includes a measurement result of a link quality of the link, and/or a measurement result of a link state of the link.
  • the first terminal device is a relay terminal device
  • the second terminal device is a remote terminal device
  • the first terminal device is a remote terminal device.
  • the device, the second terminal device is a relay terminal device.
  • a terminal device which can perform the operations of the terminal device in the foregoing first aspect or any optional implementation manner of the first aspect.
  • the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the first aspect or the first aspect described above.
  • a fifth aspect provides a terminal device, which can perform the operations of the terminal device in any of the foregoing optional implementations of the second aspect or the second aspect.
  • the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the second aspect or the second aspect described above.
  • a network device which can perform the operations of the network device in any of the foregoing optional implementations of the third aspect or the third aspect.
  • the network device may comprise a modular unit for performing the operations of the network device in any of the possible implementations of the third aspect or the third aspect described above.
  • a terminal device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in the first aspect or any possible implementation manner of the first aspect, or the execution causes the terminal device to implement the terminal provided by the fourth aspect device.
  • a terminal device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in any of the possible implementations of the second aspect or the second aspect, or the execution causes the terminal device to implement the terminal provided by the fifth aspect device.
  • a network device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the network device to perform the method in any of the possible implementations of the third aspect or the third aspect, or the execution causes the network device to implement the network provided by the sixth aspect device.
  • a computer readable storage medium storing a program, the program causing a network device to perform the first aspect described above, and any one of the various implementation manners .
  • a computer readable storage medium storing a program causing a network device to perform the switching of any of the above second aspects, and various implementations thereof method.
  • a computer readable storage medium storing a program causing a network device to perform the switching of any of the above third aspects, and various implementations thereof method.
  • a system chip comprising an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement Any of the foregoing first aspects and various implementations thereof.
  • a system chip comprising an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement Any of the foregoing second aspects and various implementations thereof.
  • a system chip includes an input interface, an output interface, a processor, and a memory, where the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement Any of the foregoing third aspects and various implementations thereof.
  • FIG. 1 is a schematic diagram of relay transmission of a terminal device of the prior art.
  • 2(a) is a schematic diagram of relay transmission of a terminal device of the prior art.
  • 2(b) is a schematic diagram of relay transmission of a terminal device of the prior art.
  • FIG. 3 is a schematic structural diagram of an application scenario of an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 7 is a process interaction diagram of a handover method according to an embodiment of the present application.
  • FIG. 8 is a flow diagram of a process of a handover method according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • a terminal device may also be referred to as a User Equipment ("UE"), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication device. , user agent or user device.
  • UE User Equipment
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SIP”) phone, a Wireless Local Loop (WLL) station, or a personal digital assistant (Personal Digital Assistant, Abbreviation "PDA”), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a future evolving land-based public mobile communication network ( Public Land Mobile Network (“PLMN”) is a terminal device in the network.
  • PLMN Public Land Mobile Network
  • the present application describes various embodiments in connection with a network device.
  • the network device may be a device for communicating with the terminal device, for example, may be a base station (Base Transceiver Station, abbreviated as "BTS") in the GSM system or CDMA, or may be a base station (NodeB, referred to as "NB” in the WCDMA system. ”), may also be an evolved base station (Evolutional Node B, “eNB” or “eNodeB”) in the LTE system, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a future 5G network.
  • a network side device in a network side device or a network side device in a future evolved PLMN network.
  • FIG. 3 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system in FIG. 3 may include a network device 10, a network device 20, a terminal device 30, and a terminal device 40.
  • the network device 10 is configured to provide communication services for the terminal device 30 and the terminal device 40.
  • the terminal device 40 is a remote terminal device such as a watch
  • the terminal device 30 is a relay terminal device such as a mobile phone
  • the terminal device 40 can be connected to the network device through the terminal device 30. Data transfer between 10.
  • the terminal device 30 and the terminal device 40 are in the same location, for example, both are on the user, at this time, the two terminal devices perform the same speed movement in the same direction at the same time, and if the cell switching needs to be performed during the mobile process, if the two terminal devices are switched To a cell covered by different network devices, it will have a great impact on the relay transmission between the relay terminal and the remote terminal. Therefore, when the cell handover is performed during the movement of the two terminal devices, it is desirable that the terminal device 30 and the terminal device 40 are switched to the cell covered by the same network device. As shown in FIG. 3, the terminal device 30 and the terminal device 40 are connected by the network.
  • the device 10 is switched to a cell covered by the network device 20, at which time the terminal device and the terminal device 40 can effectively perform normal relay transmission.
  • the arrows shown in FIG. 3 may represent uplink/downlink transmissions by the cellular link between the terminal device 20 and the network device 10.
  • the network in the embodiment of the present application may refer to a Public Land Mobile Network (PLMN) or a Device to Device (D2D) network or a Machine to Machine (Machine to Machine). /Man, referred to as "M2M” network or other network
  • PLMN Public Land Mobile Network
  • D2D Device to Device
  • Machine to Machine Machine to Machine
  • FIG. 3 is only a simplified schematic diagram of the example, and the network may also include other terminal devices, which are not shown in FIG.
  • FIG. 4 is a schematic flowchart of a handover method 400 according to an embodiment of the present application.
  • the method can be made by Executed by a terminal device, the first terminal device may be a relay terminal device such as the terminal device 30 in FIG. 3 or a remote terminal device such as the terminal device 40 in FIG.
  • the switching method includes:
  • the first terminal device acquires a measurement result of the link, where the link includes a link between the first terminal device and the first network device, and a link between the first network device and the second terminal device.
  • the first terminal device determines, according to the measurement result, a first handover scheme of the first terminal device and/or a second handover scheme of the second terminal device.
  • At least one of the first terminal device and the second terminal device is in an inactive state or an idle state.
  • the first terminal device is a relay terminal device
  • the second terminal device is a remote terminal device
  • the first terminal device is a remote terminal device
  • the second terminal device is a relay terminal device
  • the method further includes: after determining the first handover scheme, the first terminal device performs the first handover scheme.
  • the first terminal device may acquire the measurement result of the link between the first network device and the first terminal device, and the first network device and the first The measurement result of the link between the two terminal devices, the measurement result of the links can be used to determine a first handover scheme for the first terminal device, and determine a second handover scheme for the second terminal device.
  • the first terminal device Since the first terminal device simultaneously acquires the measurement result of the link between the first terminal device and the first network device, and the measurement result of the link between the second terminal device and the first network device, the first terminal device is When determining the respective handover schemes for the first terminal device and the second terminal device, the measurement results of the multiple links may be comprehensively considered, and the cells covered by the same network device are selected as the first terminal device and the second terminal device as possible. The switched cell or the reselected cell to be accessed.
  • the first network device determines the first handover scheme and the second handover scheme. According to the link measurement result of the two terminal devices, the cell covered by the same network device is selected as the cell to be switched for the first terminal device and the second terminal device as much as possible to ensure the service continuity of the terminal device, despite the handover.
  • the post signal strength is not optimal.
  • the first handover scheme and the second handover scheme are determined by the first terminal device. Therefore, when the first terminal device and/or the second terminal device are in an inactive state or an idle state, the terminal device may not pass the network device, but determine the switching scheme by itself to better ensure the terminal device. The continuity of the business.
  • the first terminal device may determine a first handover scheme of the first terminal device, and determine a second handover scheme of the second terminal device; the first terminal device may also only determine the first handover scheme, and the second handover scheme is determined by the first handover scheme.
  • the second terminal device determines itself.
  • the method further includes: the first terminal device sends a handover command to the second terminal device, where the handover command is used to instruct the second terminal device to perform The second switching scheme.
  • the measurement result of the link acquired by the first terminal device may further include a measurement result of the link between the first terminal device and the second terminal device.
  • the first terminal device can obtain not only the measurement result of the link between the first network device and the first terminal device, but also the measurement result of the link between the first network device and the second terminal device, and The measurement result of the link between the first terminal device and the second terminal device is obtained, and the measurement results of the three links are comprehensively considered to determine the first handover scheme and/or the second handover scheme. Since the link situation between the two terminal devices is considered, the two terminal devices are switched to the cells covered by the same network device as much as possible.
  • the measurement result of the link includes a measurement result of the link quality of the link, and/or a measurement result of a link state of the link.
  • the first terminal device can determine the measurement result of the link of the first terminal device, that is, the measurement result of the link between the first terminal device and the first network device, and between the first terminal device and the second terminal device
  • the measurement result of the link and the second terminal device may determine the measurement result of the link of the second terminal device, that is, the measurement result of the link between the second terminal device and the first network device, and the second terminal device and the The measurement result of the link between a terminal device. Therefore, optionally, in 410, the first terminal device acquires the measurement result of the link, where: the first terminal device determines a measurement result of the link between the first terminal device and the first network device, and receives the second The measurement result of the link between the first network device and the second terminal device sent by the terminal device.
  • the first terminal device acquiring the measurement result of the link may further include: determining, by the first terminal device, a measurement result of the link between the first terminal device and the second terminal device; or receiving, by the first terminal device, the second terminal The measurement result of the link between the first terminal device and the second terminal device sent by the device.
  • the first terminal device obtains the measurement result of the link, where the first terminal device obtains the measurement result of the link that is sent by the second terminal device and is carried in the adaptation layer or the direct connection protocol stack PC5. .
  • the information of the interaction between the first terminal device, the second terminal device, and the first network device may be carried in the adaptation layer or in the signaling or data of the existing direct interface protocol stack PC5. .
  • the first terminal device determines, according to the measurement result, the first handover scheme of the first terminal device and/or the second handover scheme of the second terminal device, including: the first terminal device according to the first terminal The state of the device and the second terminal device, and the measurement result, determining the first handover scheme and/or the second handover scheme.
  • the first switching solution includes: the cell that is covered by the first network device by the first terminal device is switched to the cell that is covered by the second network device, or the first terminal device does not perform Cell switching
  • the first handover scheme includes the first terminal device reselecting the cell covered by the second network device as the cell to be accessed, or the first terminal device does not perform cell reselection;
  • the second handover scheme includes: the cell that is covered by the first network device by the second terminal device is switched to the cell covered by the second network device or the cell covered by the other network device, or the second terminal device does not Perform cell handover;
  • the second handover scheme includes the second terminal device reselecting a cell covered by the second network device or a cell covered by another network device as the cell to be accessed, or the second terminal The device does not perform cell reselection.
  • the second handover scheme may cause the second terminal device to switch or reselect to the same network as the first terminal device.
  • the device is in the cell covered by the second network device, but in the case that the signal strength condition is not allowed, or the first terminal device and the second terminal device do not need to maintain the link connection, the link connection should not be maintained, or the link is not suitable.
  • the second terminal device may also switch to the cell covered by the other network device or reselect the cell covered by the other network device as the cell to be accessed.
  • the first terminal device determines, according to the measurement result, the first handover scheme of the first terminal device and/or the second handover scheme of the second terminal device, including: the first terminal device according to the measurement node Determining whether a link connection is maintained between the first terminal device and the second terminal device; determining, by the first terminal device, whether the link connection is maintained between the first terminal device and the second terminal device, determining the first switching solution and/or Or the second switching scheme.
  • the first terminal device determines that the first terminal device maintains the link connection with the second terminal device, the first terminal device performs the first handover scheme and the second terminal device performs the second handover scheme, A terminal device and a second terminal device are located in a cell covered by the same network device.
  • the first network device determines that the link connection is maintained between the first terminal device and the second terminal device, for example, the first network device determines that the link connection should be maintained between the first terminal device and the second terminal device, Or the first switching scheme and/or the second switching scheme determined by the first network device, when the first terminal device performs the first switching scheme and the second terminal device performs the second switching scheme,
  • the first terminal device and the second terminal device are located in a cell covered by the same network device.
  • the first network device determines that the link connection is not maintained between the first terminal device and the second terminal device, for example, the first network device determines that the link connection between the first terminal device and the second terminal device should not continue, or If the link connection needs to be maintained, or the signal strength cannot meet the link requirement between the first terminal device and the second terminal device, the first switching solution and/or the second switching solution determined by the first network device may enable After a terminal device performs the first handover scheme and the second terminal device performs the second handover scheme, the first terminal device and the second terminal device are located in cells covered by the same or different network devices.
  • the method further includes: the first terminal device sends release indication information to the second terminal device, where the release indication information is And configured to instruct the second terminal device to release a link connection with the first terminal device.
  • the method further includes: A terminal device acquires association information between the first terminal device and the second terminal device, where the association information includes a pairing relationship or a connection relationship between the first terminal device and the second terminal device.
  • the first terminal device determines, according to the measurement result, the first handover scheme of the first terminal device and/or the second handover scheme of the second terminal device, including: the first terminal device determines, according to the association information and the measurement result, The first handover scheme and/or the second handover scheme.
  • the first terminal device may further be configured according to the first terminal device and the second terminal device.
  • the pairing relationship or the connection relationship, and the measurement result of the link jointly determine the first switching scheme and/or the second switching scheme. For example, if the first terminal device is in a connection relationship with the second terminal device, and there is still a data interaction, when determining the first handover scheme and/or the second handover scheme, the first terminal device performs the measurement result according to the link. It is possible for the first terminal device and the second terminal device to select a cell covered by the same network device as the cell to be switched or the cell to be accessed to be reselected, although the signal strength after the handover is not optimal.
  • the method further includes: the first terminal device sends the handover information to the first network device, where the handover information includes at least one of the following information: information of the first handover scheme The information of the second handover scheme and the measurement result of the link.
  • the first handover scheme and the second handover scheme may be reported to the first network device.
  • the first network device determines whether the first terminal device and/or the second terminal device can perform their own handover scheme to switch to a suitable network.
  • the information of the first handover scheme may include information of a cell to be switched by the first terminal device or a cell of the reselected cell (ie, a handover cell or a reselection cell that is preferred by the first terminal device), where the information of the second handover scheme may be The information of the cell to be handed over by the second terminal device or the cell of the reselected cell (ie, the switching cell or the reselected cell that the second terminal device prefers).
  • the first handover scheme determined by the first terminal device includes the first terminal device switching to the cell covered by the second network device, where the first terminal device may send the information of the first handover scheme and the measurement result of the link. Give the first network device.
  • the first network device may determine, according to the received measurement information and the information of the first handover scheme, whether the first terminal device selects whether to switch to a cell covered by the second network device.
  • the method further includes: the first terminal device And receiving the configuration information sent by the network device, where the configuration information is used to indicate that the first terminal device preferentially sends the information of the cell to be switched by the first terminal device, where the to-be-switched cell enables the first terminal device and the second terminal device to meet the signal strength. Conditions are located in cells covered by the same network device.
  • the first terminal device may send the information of the first handover scheme, that is, the information of the cell to be switched by the first terminal device, to the first network device, and may simultaneously send all the measurements measured by the first terminal device to the first network device.
  • Cell information when the terminal device reports, it will take precedence. Reporting, to the first network device, the information of the cell to be switched by the first terminal device, where the cell to be switched by the first terminal device is: enabling the first terminal device and the second terminal device to meet the switching signal strength condition and located in the same network Community.
  • the first terminal device acquires the measurement results of the links between the two of the first terminal device, the second terminal device, and the second network device, and also acquires the first terminal device and the second terminal device. And a measurement result of the links between the two in the third network device. If the first handover scheme determined by the first terminal device according to the obtained measurement results is: the first terminal device switches to the A cell under the coverage of the second network device, the A cell in the first handover scheme is optimally switched.
  • the cell that is, the cell that enables the first terminal device and the second terminal device to meet the handover signal strength condition and is located under the same network coverage
  • the first terminal device preferentially prioritizes the information of the first handover scheme (ie, the information of the A cell)
  • the information of the cell covered by the third network device and the information of other cells except the A cell covered by the second network device are sent to the first network device. Therefore, the first network device can confirm the first handover scheme according to the received information to determine whether the first handover scheme is suitable.
  • the terminal device determines the handover scheme of the two terminal devices by acquiring the link information of the relay terminal device and the link information of the remote terminal device, so that the two terminal devices perform cell handover or cell weight. After being selected, it can be located in the cell covered by the same network device as much as possible, so that after the cell handover of the relay terminal and the remote terminal, the relay terminal and the remote terminal can continue to perform effective relay transmission.
  • the terminal device may not determine the handover scheme by itself, but Better guarantee the continuity of services between terminal devices.
  • FIG. 5 is a schematic flowchart of a handover method 500 according to an embodiment of the present application.
  • the method may be performed by a second terminal device, which may be a relay terminal device such as terminal device 30 in FIG. 3 or a remote terminal device such as terminal device 40 in FIG.
  • the switching method includes:
  • the second terminal device acquires a measurement result of the link, where the link includes a measurement result of a link between the second terminal device and the first network device.
  • the second terminal device sends the measurement result to the first terminal device, where the measurement result is used by the first terminal device to determine a second handover scheme of the second terminal device.
  • the second terminal device receives the handover command sent by the first terminal device, and according to the Switching the command to execute the second switching scheme.
  • the first terminal device is a relay terminal device
  • the second terminal device is a remote terminal device
  • the first terminal device is a remote terminal device
  • the second terminal device is a relay terminal device
  • the second terminal device acquires the measurement result of the link between the second terminal device and the first network device, and sends the measurement result to the first terminal device, thereby Determining, by the first terminal device, the second terminal device according to the measurement result of the link between the first network device and the second terminal device, and the measurement result of the link between the first network device and the first terminal device Switching schemes, or you can also determine your own first switching scheme.
  • the first terminal device Since the first terminal device simultaneously acquires the measurement result of the link between the second terminal device and the first network device, and the measurement result of the link between the first terminal device and the first network device, the first terminal device is When the second terminal device determines the handover scheme, the measurement result of the multiple links may be comprehensively considered, and the cell covered by the same network device as the first terminal device is selected as the second terminal device as possible, as the reselected to be accessed. Community.
  • the measurement result of the link acquired by the second terminal device may further include a measurement result of the link between the second terminal device and the first terminal device.
  • the first terminal device may determine a measurement result of the link between the first network device and the first terminal device, and receive a link between the first network device and the second terminal device that is sent by the second terminal device.
  • the measurement result, and the measurement result of the link between the first terminal device and the second terminal device thereby comprehensively considering the measurement results of the three links to determine the first handover scheme and/or the second handover scheme. Since the link situation between the two terminal devices is considered, the two terminal devices are switched to the cells covered by the same network device as much as possible.
  • the measurement result of the link between the first terminal device and the second terminal device may also be determined by the first terminal device itself.
  • the measurement result of the link includes a measurement result of the link quality of the link, and/or a measurement result of a link state of the link.
  • the first handover scheme includes: the cell that is covered by the first network device by the first terminal device is switched to the cell that is covered by the second network device, or the first terminal device does not perform the cell handover. ;
  • the first handover scheme includes the first terminal device reselecting the cell covered by the second network device as the cell to be accessed, or the first terminal device does not perform cell reselection;
  • the second switching scheme includes the second terminal device
  • the cell covered by the network device is switched to the cell covered by the second network device or the cell covered by the other network device, or the second terminal device does not perform the cell handover;
  • the second handover scheme includes the second terminal device reselecting a cell covered by the second network device or a cell covered by another network device as the cell to be accessed, or the second terminal The device does not perform cell reselection.
  • the information of the interaction between the first terminal device, the second terminal device, and the first network device may be carried in the adaptation layer or in the signaling or data of the existing direct interface protocol stack PC5. .
  • the second terminal device and the first terminal device are located at the same A cell covered by a network device.
  • the first terminal device may determine, according to the measurement result of the link, whether the first terminal device and the second terminal device maintain a link connection, and if the first terminal device determines the first terminal device and the second terminal device, Maintaining a link connection, for example, when the first network device determines that the link connection should be maintained between the first terminal device and the second terminal device, or needs to continue to maintain the link connection, the second handover scheme determined by the first terminal device may After the second terminal device is configured to perform the second handover scheme, the second terminal device and the first terminal device after performing the first handover scheme are located in the cell covered by the same network device.
  • the method further includes: receiving, by the second terminal device, the release indication information sent by the first terminal device, and according to the The indication information is released, and the link connection with the first terminal device is released.
  • the handover command further includes information about the to-be-selected cell reselected by the second terminal device. .
  • the handover command further includes a resource used by the second terminal device to perform cell handover.
  • the terminal device reports its own link information to another terminal device, so that the other terminal device can decide two terminal devices according to the link information of the two terminal devices.
  • the handover scheme is such that after the two terminal devices perform cell handover or cell reselection, they can be located in the cell covered by the same network device as much as possible, so that after the relay terminal and the remote terminal perform cell handover, the relay terminal and the The effective relay transmission can continue between the remote terminals.
  • the terminal device may not determine the handover scheme by itself, but Better guarantee the continuity of services between terminal devices.
  • FIG. 6 is a schematic flowchart of a handover method 600 according to an embodiment of the present application.
  • the method can be performed by a second network device, such as network device 10 in FIG.
  • the switching method includes:
  • the first network device receives the handover information sent by the first terminal device, where the handover information includes at least one of the following: a first handover scheme of the first terminal device determined by the first terminal device, and a second terminal device The second handover scheme and the measurement result of the link, the link includes a link between the first terminal device and the first network device, and a link between the second terminal device and the first network device.
  • the first network device confirms the first handover scheme and/or the second handover scheme according to the handover information.
  • the measurement result of the link includes a measurement result of the link quality of the link, and/or a measurement result of a link state of the link.
  • the first terminal device is a relay terminal device
  • the second terminal device is a remote terminal device
  • the first terminal device is a remote terminal device
  • the second terminal device is a relay terminal device
  • the first terminal device may acquire the measurement result of the link between the first network device and the first terminal device, and the first network device and the first The measurement result of the link between the two terminal devices, the first terminal device may determine the first handover scheme of the first terminal device according to the measurement result of the links, and determine the second handover scheme of the second terminal device. At this time, the first terminal device may further send at least one of the first handover scheme, the second handover scheme, and the measurement result of the link to the first network device, where the first network device receives the handover information according to the handover information.
  • the first handover scheme and/or the second handover scheme to determine whether the first handover scheme and/or the second handover scheme is an optimal handover scheme, that is, determining the first terminal device and/or the first Whether the second terminal device can perform its own handover scheme to switch to the appropriate network or reselect to the appropriate network as the network to be accessed.
  • the first handover scheme determined by the first terminal device includes the first terminal device switching to The first terminal device may send the information of the first handover scheme and the measurement result of the link to the first network device in the cell that is covered by the second network device.
  • the first network device may determine, according to the received measurement information and the information of the first handover scheme, whether the first terminal device selects whether to switch to a cell covered by the second network device.
  • the first handover scheme includes: the cell that is covered by the first network device by the first terminal device is switched to the cell that is covered by the second network device, or the first terminal device does not perform cell handover;
  • the second handover scheme includes the second The terminal device reselects the cell covered by the second network device or the cell covered by the other network device as the cell to be accessed, or the second terminal device does not perform cell reselection.
  • the method further includes: the network device sending configuration information to the terminal device, where the configuration information is used to indicate that the first terminal device preferentially sends information about a cell to be switched by the first terminal device, where the to-be-switched cell makes A terminal device and a second terminal device satisfy a signal strength condition and are located in a cell covered by the same network device.
  • the first terminal device may send the information of the first handover scheme, that is, the information of the cell to be switched by the first terminal device, to the first network device, and may simultaneously send all the measurements measured by the first terminal device to the first network device.
  • the information of the cell but the terminal device preferentially reports the information of the cell to be switched by the first terminal device to the first network device, where the cell to be switched by the first terminal device is: enabling the first terminal device A cell that satisfies both the handover signal strength condition and the same network with the second terminal device.
  • the first terminal device acquires the measurement result of the link between the first terminal device, the second terminal device, and the second network device, and also acquires the first terminal device, the second terminal device, and the third network device.
  • the measurement result of the link between If the first handover scheme determined by the first terminal device according to the obtained measurement results is: the first terminal device switches to the A cell under the coverage of the second network device, the A cell in the first handover scheme is optimally switched.
  • the cell that is, the cell that enables the first terminal device and the second terminal device to meet the handover signal strength condition and is located under the same network coverage
  • the first terminal device preferentially prioritizes the information of the first handover scheme (ie, the information of the A cell)
  • the information is sent to the first network device, and then the information of the cell covered by the third network device and the information of the other network other than the A cell that the second network device covers are sent to the first network device. Therefore, the first network device can confirm the first handover scheme according to the received information.
  • the network device after receiving the information about the handover scheme determined by the terminal device, the network device confirms the handover scheme, thereby determining the relay terminal device and the remote terminal. Whether the respective switching scheme of the end devices is appropriate.
  • the handover scheme determined by the terminal device enables the two terminal devices to be located in the cell that they cover as much as possible after the cell handover or the cell reselection, so that after the relay terminal and the remote terminal perform cell handover, The effective relay transmission continues between the relay terminal and the remote terminal.
  • FIG. 7 and FIG. 8 are merely examples, and embodiments of the present application are not limited thereto.
  • FIG. 7 is a process interaction diagram of a handover method according to an embodiment of the present application.
  • the first terminal device in FIG. 7 is in a connected state, and the second terminal device is in an inactive state or an idle state.
  • the method includes:
  • the second terminal device sends the measurement result of the link of the second terminal device to the first terminal device.
  • the measurement result of the link of the second terminal device includes a measurement result of a link (for example, link status or link quality, etc.) between the second terminal device and the first network device.
  • a link for example, link status or link quality, etc.
  • the first network device determines a first handover scheme of the first terminal device and a second handover scheme of the second terminal device.
  • the first terminal device determines the first handover scheme and the second handover scheme according to the measurement result of the link of the first terminal device and the measurement result of the link of the second terminal device.
  • the measurement result of the link of the first terminal device includes a measurement result of a link between the first terminal device and the first network device, and a measurement result of a link between the first terminal device and the second terminal device.
  • the first terminal device may further acquire a pairing relationship/connection relationship between the first terminal device and the second terminal device, so as to determine the first switch according to the pairing relationship/connection relationship and the measurement result of the link.
  • Scheme and second handover scheme may be used.
  • the first handover scheme includes: the cell that is covered by the first network device by the first terminal device is switched to the cell that is covered by the second network device, and the second handover scheme includes the second terminal device reselecting the cell covered by the second network device as the to-be-connected Into the community.
  • the first network device sends the handover information to the first network device.
  • the handover information includes at least one of the following: a first handover scheme of the first terminal device determined by the first terminal device, a second handover scheme of the second terminal device, and a measurement result of the link.
  • the first network device according to the switching information, the first switching scheme and the second switching party. Confirm the case.
  • the first network device sends an acknowledgement message to the first terminal device.
  • the first terminal device After receiving the acknowledgement message, the first terminal device sends a handover indication message to the second terminal device.
  • the handover indication message includes the cell information of the cell to be reselected by the second terminal device, where the second handover indication information is used to instruct the second terminal device to perform the second handover scheme.
  • the first terminal device performs a first handover scheme, and switches to a cell covered by the second network device.
  • the second terminal device performs a second handover scheme, and switches to a cell covered by the second network device.
  • the first terminal device may further send release indication information to the second terminal device to indicate release of the link connection between each other.
  • the release indication information may be sent to the second terminal device together by the handover indication information.
  • FIG. 8 is a flow diagram of a process of a handover method according to an embodiment of the present application.
  • the first terminal device and the second terminal device in FIG. 8 are both in an inactive state or an idle state.
  • the method includes:
  • the second terminal device sends a measurement result of the link of the second terminal device to the first terminal device.
  • the measurement result of the link of the second terminal device includes a measurement result of a link (for example, link status or link quality, etc.) between the second terminal device and the first network device.
  • a link for example, link status or link quality, etc.
  • the first terminal device determines a first handover scheme of the first terminal device and a second handover scheme of the second terminal device.
  • the first terminal device determines the first handover scheme and the second handover scheme according to the measurement result of the link of the first terminal device and the measurement result of the link of the second terminal device.
  • the measurement result of the link of the first terminal device includes a measurement result of a link between the first terminal device and the first network device, and a measurement result of a link between the first terminal device and the second terminal device.
  • the first terminal device may further acquire a pairing relationship/connection relationship between the first terminal device and the second terminal device, so as to determine the first switch according to the pairing relationship/connection relationship and the measurement result of the link.
  • Scheme and second handover scheme may be used.
  • the first handover scheme includes the first terminal device reselecting the cell covered by the second network device as the cell to be accessed
  • the second handover scheme includes the second terminal device reselecting the cell covered by the second network device as the to-be-accessed Community.
  • the first terminal device sends a handover indication message to the second terminal device. .
  • the handover indication message includes the cell information of the cell to be reselected by the second terminal device, where the second handover indication information is used to instruct the second terminal device to perform the second handover scheme.
  • the first terminal device performs a first handover scheme, and reselects a cell covered by the second network device as a cell to be accessed.
  • the second terminal device performs a second handover scheme, and reselects a cell covered by the second network device as a cell to be accessed.
  • the first terminal device may further send release indication information to the second terminal device to indicate release of the link connection between each other.
  • the release indication information may be sent to the second terminal device together by the handover indication information.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • FIG. 9 is a schematic block diagram of a terminal device 900 according to an embodiment of the present application.
  • the terminal device 900 includes an obtaining unit 910 and a determining unit 920. among them:
  • the obtaining unit 910 is configured to obtain a measurement result of the link, where the link includes a link between the first terminal device and the first network device, and between the first network device and the second terminal device link;
  • the determining unit 920 is configured to determine, according to the measurement result acquired by the acquiring unit 910, a first handover scheme of the first terminal device and/or a second handover scheme of the second terminal device.
  • the terminal device determines the handover scheme of the two terminal devices by acquiring the link information of the relay terminal device and the link information of the remote terminal device, so that after the two terminal devices perform cell handover or cell reselection, the terminal device can It may be located in a cell covered by the same network device, so that after the cell handover is performed by the relay terminal and the remote terminal, the relay terminal and the remote terminal continue to perform effective relay transmission.
  • the terminal device may determine the handover scheme by itself without passing through the network device, so as to better ensure the continuity of the service between the terminal devices.
  • the link further includes a link between the first terminal device and the second terminal device.
  • the first terminal device further includes: a sending unit, configured to: send a handover command to the second terminal device, where the handover command is used to instruct the second terminal device to perform the second handover scheme.
  • a sending unit configured to: send a handover command to the second terminal device, where the handover command is used to instruct the second terminal device to perform the second handover scheme.
  • the determining unit 920 is specifically configured to: determine, according to a state where the first terminal device and the second terminal device are located, and the measurement result, the first switching scheme and/or the The second switching scheme.
  • the first switching scheme includes: switching, by the first terminal device, a cell covered by the first network device to a cell covered by the second network device, or The first terminal device does not perform cell handover;
  • the first handover scheme includes the first terminal device reselecting a cell covered by the second network device as a cell to be accessed, or the A terminal device does not perform cell reselection;
  • the second handover scheme includes that the second terminal device is switched by the cell covered by the first network device to a cell or other network device coverage covered by the second network device The cell, or the second terminal device does not perform cell handover;
  • the second handover scheme includes the second terminal device reselecting a cell covered by the second network device or a cell covered by another network device as a to-be-accessed The cell, or the second terminal device does not perform cell reselection.
  • the determining unit 920 is specifically configured to: determine, according to the measurement result, whether a link connection is maintained between the first terminal device and the second terminal device; according to the first terminal device and the Whether the link connection is maintained between the second terminal devices, and determining the first handover scheme and/or the second handover scheme.
  • the first terminal device determines that a link connection is maintained between the first terminal device and the second terminal device, the first terminal device performs the first handover scheme and the After the second terminal device performs the second handover scheme, the first terminal device and the second terminal device are located in a cell covered by the same network device.
  • the sending unit is further configured to: send, to the second terminal device, release indication information, where the release indication information is used to indicate that the second terminal device releases the first terminal Link connection between devices.
  • the obtaining unit 910 is specifically configured to: determine, by the determining unit 920, the first switching scheme of the first terminal device and/or the second switching of the second terminal device according to the measurement result. Before the solution, the association information between the first terminal device and the second terminal device is obtained, where the association information includes a pairing relationship or a connection relationship between the first terminal device and the second terminal device;
  • the determining unit 920 is specifically configured to: determine the first switching scheme and/or the second switching scheme according to the association information and the measurement result.
  • the sending unit is further configured to: send, to the first network device, handover information, where the handover information includes at least one of the following information: Information of a handover scheme, information of the second handover scheme, and the measurement result.
  • the first terminal device further includes: a receiving unit, configured to: determine, by the determining unit 920, the first switching scheme of the first terminal device and/or the second terminal according to the measurement result Receiving, by the first network device, configuration information sent by the first network device, where the configuration information is used to indicate that the first terminal device preferentially sends information about a cell to be switched by the first terminal device, where The cell to be switched is such that the first terminal device and the second terminal device satisfy the signal strength condition and are located in a cell covered by the same network device.
  • a receiving unit configured to: determine, by the determining unit 920, the first switching scheme of the first terminal device and/or the second terminal according to the measurement result
  • the first terminal device is a relay terminal device, and the second terminal device is a remote terminal device; or the first terminal device is a remote terminal device, and the second terminal device is a relay device.
  • Terminal Equipment Terminal Equipment
  • the measurement result of the link includes a measurement result of a link quality of the link, and/or a measurement result of a link state of the link.
  • the acquiring unit 910 is specifically configured to: determine a measurement result of a link between the first terminal device and the first network device, and receive the first sent by the second terminal device A measurement result of a link between the network device and the second terminal device.
  • the acquiring unit 910 is specifically configured to: determine, by the first terminal device, a measurement result of a link between the first terminal device and the second terminal device; or the first terminal device receives the a measurement result of a link between the first terminal device and the second terminal device that is sent by the second terminal device.
  • the obtaining unit 910 is specifically configured to: acquire, by the first terminal device, a measurement result of a link that is sent by the second terminal device and that is carried in the adaptation layer or the direct interface protocol stack PC5.
  • FIG. 10 is a schematic block diagram of a terminal device 1000 according to an embodiment of the present application.
  • the terminal device 1000 includes an obtaining unit 1010, a transmitting unit 1020, and a processing unit 1030. among them:
  • the obtaining unit 1010 is configured to obtain a measurement result of the link, where the link includes a measurement result of a link between the second terminal device and the first network device;
  • the sending unit 1020 is configured to send, to the first terminal device, the measurement result obtained by the acquiring unit 1010, where the measurement result is used by the first terminal device to determine a second handover scheme of the second terminal device ;
  • the processing unit 1030 is configured to receive a handover command sent by the first terminal device, and execute the second handover scheme according to the handover command.
  • the terminal device can report the switching scheme of the two terminal devices according to the link information of the two terminal devices by reporting the link information of the terminal device to the other terminal device, so that the two terminal devices perform the cell. After handover or cell reselection, it can be located in the cell covered by the same network device as much as possible, so that after the relay terminal and the remote terminal perform cell handover, the relay terminal and the remote terminal can continue to effectively relay. transmission.
  • the terminal device may not determine the handover scheme by itself, but Better guarantee the continuity of services between terminal devices.
  • the link further includes a link between the first terminal device and the second terminal device.
  • the first switching scheme includes: switching, by the first terminal device, a cell covered by the first network device to a cell covered by the second network device, or The first terminal device does not perform cell handover;
  • the first handover scheme includes the first terminal device reselecting a cell covered by the second network device as a cell to be accessed, or the A terminal device does not perform cell reselection;
  • the second handover scheme includes that the second terminal device is switched by the cell covered by the first network device to a cell or other network device coverage covered by the second network device The cell, or the second terminal device does not perform cell handover;
  • the second handover scheme includes the second terminal device reselecting a cell covered by the second network device or a cell covered by another network device as a to-be-accessed The cell, or the second terminal device does not perform cell reselection.
  • the first terminal device determines that the first terminal device maintains a link connection with the second terminal device
  • the second terminal device performs the second handover scheme
  • the second terminal device and the first terminal device are located in a cell covered by the same network device.
  • the processing unit 1030 is further configured to: receive the release sent by the first terminal device Instructing information, and releasing a link connection with the first terminal device according to the release indication information.
  • the first terminal device is a relay terminal device, and the second terminal device is a remote terminal device; or the first terminal device is a remote terminal device, and the second terminal device is a relay device.
  • Terminal Equipment Terminal Equipment
  • the measurement result of the link includes a measurement result of a link quality of the link, and/or a measurement result of a link state of the link.
  • the sending unit 1020 is specifically configured to: send the measurement result carried in the adaptation layer or the direct interface protocol stack PC5 to the first terminal device.
  • FIG. 11 is a schematic block diagram of a network device 1100 in accordance with an embodiment of the present application. As shown in FIG. 11, the network device 1100 includes a receiving unit 1110 and a processing unit 1120. among them:
  • the receiving unit 1110 is configured to receive the handover information that is sent by the first terminal device, where the handover information includes at least one of the following information: the first handover scheme of the first terminal device determined by the first terminal device, a second handover scheme of the second terminal device and a measurement result of the link, the link including a link between the first terminal device and the first network device, and the second terminal device and the first a link between network devices;
  • the processing unit 1120 is configured to confirm the first handover scheme and/or the second handover scheme according to the handover information received by the receiving unit 1110.
  • the network device After receiving the information about the handover scheme determined by the terminal device and sent by the terminal device, the network device confirms the handover scheme, so as to determine whether the handover scheme of the relay terminal device and the remote terminal device is appropriate.
  • the handover scheme determined by the terminal device enables the two terminal devices to be located in the cell that they cover as much as possible after the cell handover or the cell reselection, so that after the relay terminal and the remote terminal perform cell handover, Continue between the relay terminal and the remote terminal The line effectively relays the transmission.
  • the link further includes a link between the first terminal device and the second terminal device.
  • the first handover scheme includes: the cell that is covered by the first network device by the first terminal device is switched to a cell that is covered by the second network device, or the first terminal device does not perform cell handover.
  • the second handover scheme includes the second terminal device reselecting a cell covered by the second network device or a cell covered by another network device as a cell to be accessed, or the second terminal device does not perform cell weight selected.
  • the first network device further includes: a sending unit, configured to: send configuration information to the terminal device, where the configuration information is used to indicate that the first terminal device preferentially sends the first terminal device to be switched
  • the information of the cell, the cell to be switched is such that the first terminal device and the second terminal device meet the signal strength condition and are located in a cell covered by the same network device.
  • the measurement result of the link includes a measurement result of a link quality of the link, and/or a measurement result of a link state of the link.
  • the first terminal device is a relay terminal device, and the second terminal device is a remote terminal device; or the first terminal device is a remote terminal device, and the second terminal device is a relay device.
  • Terminal Equipment Terminal Equipment
  • FIG. 12 is a schematic structural diagram of a terminal device 1200 according to an embodiment of the present application.
  • the terminal device includes a processor 1210, a transceiver 1220, and a memory 1230, wherein the processor 1210, the transceiver 1220, and the memory 1230 communicate with each other through an internal connection path.
  • the memory 1230 is configured to store instructions for executing the instructions stored by the memory 1230 to control the transceiver 1220 to receive signals or transmit signals.
  • the processor 1210 is configured to: obtain a measurement result of the link, where the link includes a link between the first terminal device and the first network device, and the first network device and the second terminal device.
  • the first switching scheme of the first terminal device and/or the second switching scheme of the second terminal device is determined according to the measurement result obtained by the acquiring unit.
  • the processor 1210 can call the program code stored in the memory 1230 to perform the corresponding operations of the terminal device in the method 400 shown in FIG. 4, and details are not described herein for brevity.
  • the processor 1210 may be a central processing unit (“CPU"), and the processor 1210 may also be other general-purpose processors, digital signal processors (DSPs). , application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) Or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 1230 can include read only memory and random access memory and provides instructions and data to the processor 1210. A portion of the memory 1230 can also include a non-volatile random access memory. For example, the memory 1230 can also store information of the device type.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1210 or an instruction in a form of software.
  • the steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 1210.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 1230, and the processor 1210 reads the information in the memory 1230 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the terminal device 1200 may correspond to the terminal device for performing the method 400 in the foregoing method 400, and the terminal device 900 according to the embodiment of the present application, and each unit or module in the terminal device 1200 is used for The operations or processes performed by the terminal device in the above method 400 are performed.
  • each unit or module in the terminal device 1200 is used for The operations or processes performed by the terminal device in the above method 400 are performed.
  • detailed description thereof will be omitted.
  • FIG. 13 is a schematic structural diagram of a terminal device 1300 according to an embodiment of the present application.
  • the terminal device includes a processor 1310, a transceiver 1320, and a memory 1330, wherein the processor 1310, the transceiver 1320, and the memory 1330 communicate with each other through an internal connection path.
  • the memory 1330 is configured to store instructions for executing the instructions stored by the memory 1330 to control the transceiver 1320 to receive signals or transmit signals.
  • the processor 1310 is configured to: obtain a measurement result of the link, where the link includes a measurement result of a link between the second terminal device and the first network device;
  • the transceiver 1320 is configured to: send, to the first terminal device, the measurement result obtained by the acquiring unit, where the measurement result is used by the first terminal device to determine a second handover scheme of the second terminal device Receiving a handover command sent by the first terminal device, where the handover command instructs the second terminal device to perform the second handover scheme;
  • the processor 1310 is further configured to: execute the second switching scheme according to the switching command.
  • the processor 1310 can call the program code stored in the memory 1330 to perform the corresponding operations of the terminal device in the method 500 shown in FIG. 5.
  • the processor 1310 can call the program code stored in the memory 1330 to perform the corresponding operations of the terminal device in the method 500 shown in FIG. 5.
  • the processor 1310 can call the program code stored in the memory 1330 to perform the corresponding operations of the terminal device in the method 500 shown in FIG. 5.
  • the processor 1310 may be a central processing unit (“CPU"), and the processor 1310 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 1330 can include read only memory and random access memory and provides instructions and data to the processor 1310. A portion of the memory 1330 can also include a non-volatile random access memory. For example, the memory 1330 can also store information of the device type.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1310 or an instruction in a form of software.
  • the steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 1310.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 1330, and the processor 1310 reads the information in the memory 1330 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the terminal device 1300 according to the embodiment of the present application may correspond to the terminal device for performing the method 500 in the foregoing method 500, and the terminal device 1000 according to the embodiment of the present application, and each unit or module in the terminal device 1300 is used for The operations or processes performed by the terminal device in the above method 500 are performed.
  • each unit or module in the terminal device 1300 is used for The operations or processes performed by the terminal device in the above method 500 are performed.
  • detailed description thereof will be omitted.
  • FIG. 14 is a schematic structural diagram of a network device 1400 according to an embodiment of the present application.
  • the network device includes a processor 1410, a transceiver 1420, and a memory 1430, wherein the processor 1410, the transceiver 1420, and the memory 1430 communicate with each other through an internal connection path.
  • the memory 1430 is configured to store instructions for executing the instructions stored by the memory 1430 to control the transceiver 1420 to receive signals or transmit signals.
  • the transceiver 1420 is configured to: receive the handover information sent by the first terminal device, where the handover information includes at least one of the following information: the first handover of the first terminal device determined by the first terminal device a scheme, a second handover scheme of the second terminal device, and a measurement result of the link, where the link includes a link between the first terminal device and the first network device, and the second terminal device and a link between the first network devices;
  • the processor 1310 is configured to: according to the switching information received by the receiving unit, The first handover scheme and/or the second handover scheme are acknowledged.
  • the processor 1410 can call the program code stored in the memory 1430 to perform the corresponding operations of the network device in the method 600 shown in FIG. 6.
  • the processor 1410 can call the program code stored in the memory 1430 to perform the corresponding operations of the network device in the method 600 shown in FIG. 6.
  • the processor 1410 may be a central processing unit (“CPU"), and the processor 1410 may also be other general-purpose processors, digital signal processors (DSPs), Application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 1430 can include read only memory and random access memory and provides instructions and data to the processor 1410. A portion of the memory 1430 can also include a non-volatile random access memory. For example, the memory 1430 can also store information of the device type.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1410 or an instruction in a form of software.
  • the steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 1410.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 1430, and the processor 1410 reads the information in the memory 1430 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the network device 1400 may correspond to the network device for performing the method 600 in the foregoing method 600, and the network device 1100 according to the embodiment of the present application, and each unit or module in the network device 1400 is used for The operations or processes performed by the network device in the above method 600 are performed.
  • each unit or module in the network device 1400 is used for The operations or processes performed by the network device in the above method 600 are performed.
  • detailed description thereof will be omitted.
  • FIG. 15 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • the system chip 1500 of FIG. 15 includes an input interface 1501, an output interface 1502, at least one processor 1503, and a memory 1504.
  • the input interface 1501, the output interface 1502, the processor 1503, and the memory 1504 are interconnected by an internal connection path.
  • the processor 1503 is configured to execute code in the memory 1504.
  • the processor 1503 can implement the method 400 performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 1503 may implement a method embodiment when the code is executed A method 500 performed by a terminal device.
  • the code is executed A method 500 performed by a terminal device.
  • the processor 1503 may implement a method embodiment when the code is executed A method 500 performed by a terminal device. For the sake of brevity, it will not be repeated here.
  • the processor 1503 can implement the method 600 performed by the network device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method of various embodiments of the present application.
  • the storage medium includes: a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or an optical disk, and the like.
  • the medium of the program code includes: a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or an optical disk, and the like.

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Abstract

本申请公开了一种切换方法、终端设备和网络设备，该方法包括：第一终端设备获取链路的测量结果，所述链路包括所述第一终端设备与第一网络设备之间的链路，以及所述第一网络设备与第二终端设备之间的链路；所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案。从而能够在中继终端和远端终端进行小区切换后，使中继终端设备和远端终端设备之间继续进行有效地中继传输。

Description

切换方法、终端设备和网络设备 技术领域
本申请实施例涉及无线通信领域，并且更具体地，涉及一种切换方法、终端设备和网络设备。
背景技术
在现有无线通信系统中，远端终端(Remote User Equipment，简称“Remote UE”)例如可穿戴设备可以通过中继终端例如现有普通的手机终端(Relay User Equipment，简称“Relay UE”)进行数据传输。如图1所示，中继终端可以帮助远端终端完成数据传输。并且如图2(a)和图2(b)所示，中继终端与远端终端可能通过同一基站或不同基站建立控制面连接，同时中继终端帮助远端终端完成数据的转发。此时如果中继终端或远端终端发生移动，则会要求基站切换，以保证数据传输的连续性。
但是在实际应用中，中继终端和远端终端很可能处于同一位置例如都在用户身上，此时两者很可能同时进行相同方向相同速度的移动，在移动过程中如果需要进行小区切换，目前通常是基站分别对两个终端设备进行各自的切换，这样，如果两个终端被切换至不同基站覆盖的小区，那么会对中继终端和远端终端之间的中继传输造成很大影响。
发明内容
本申请实施例提供了一种切换方法、终端设备和网络设备，能够在中继终端和远端终端进行小区切换后，使中继终端和远端终端之间继续进行有效地中继传输。
第一方面，提供了一种切换方法，包括：第一终端设备获取链路的测量结果，所述链路包括所述第一终端设备与第一网络设备之间的链路，以及所述第一网络设备与第二终端设备之间的链路；所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案。
因此，终端设备通过获取中继终端设备的链路信息和远端终端设备的链路信息，来决策两个终端设备的切换方案，使得两个终端设备进行小区切换 或小区重选后，能够尽可能地位于相同网络设备覆盖的小区中，从而能够在中继终端和远端终端进行小区切换后，使中继终端和远端终端之间继续进行有效地中继传输。
并且，由于第一切换方案和第二切换方案是由终端设备来确定的，这样，在终端设备处于非激活状态或者空闲状态时，终端设备可以不通过网络设备，而是自行确定切换方案，以更好地保证终端设备之间的业务的连续性。
由于综合考虑多条链路的测量结果，因而第一网络设备可以尽量为第一终端设备和第二终端设备选择相同网络设备覆盖的小区作为待切换的小区或者重选的待接入的小区。例如，如果第一终端设备与第二终端设备之间存在业务数据交互，那么当这两个终端设备移动过程需要进行小区切换时，第一网络设备在确定第一切换方案和第二切换方案时会根据两个终端设备各自的链路测量结果，尽可能地为第一终端设备和第二终端设备选择相同网络设备覆盖的小区作为待切换的小区，以保证终端设备的业务连续性，尽管切换后信号强度并非是最优的。
可选地，在第一方面的一种实现方式中，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
可选地，在第一方面的一种实现方式中，所述方法还包括：所述第一终端设备向所述第二终端设备发送切换命令，所述切换命令用于指示所述第二终端设备执行所述第二切换方案。
可选地，在第一方面的一种实现方式中，所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案，包括：所述第一终端设备根据所述第一终端设备和所述第二终端设备所处的状态，以及所述测量结果，确定所述第一切换方案和/或所述第二切换方案。
可选地，在第一方面的一种实现方式中，若所述第一终端设备处于连接状态，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；
若所述第一终端设备处于非激活状态或空闲状态，所述第一切换方案包括所述第一终端设备重选所述第二网络设备覆盖的小区作为待接入的小区，或者所述第一终端设备不进行小区重选；
若所述第二终端设备处于连接状态，所述第二切换方案包括所述第二终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区或其他网络设备覆盖的小区，或者所述第二终端设备不进行小区切换；
若所述第二终端设备处于非激活状态或空闲状态，所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
可选地，在第一方面的一种实现方式中，所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案，包括：所述第一终端设备根据所述测量结果，确定所述第一终端设备与所述第二终端设备之间是否保持链路连接；所述第一终端设备根据所述第一终端设备与所述第二终端设备之间是否保持链路连接，确定所述第一切换方案和/或所述第二切换方案。
可选地，在第一方面的一种实现方式中，若所述第一终端设备确定所述第一终端设备与所述第二终端设备之间保持链路连接，则所述第一终端设备执行所述第一切换方案且所述第二终端设备执行所述第二切换方案后，所述第一终端设备和所述第二终端设备位于相同网络设备覆盖的小区。
可选地，在第一方面的一种实现方式中，若所述第一终端设备确定所述第一终端设备和所述第二终端设备之间不保持链路连接，所述方法还包括：所述第一终端设备向所述第二终端设备发送释放指示信息，所述释放指示信息用于指示所述第二终端设备释放与所述第一终端设备之间的链路连接。
可选地，在第一方面的一种实现方式中，在所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案之前，所述方法还包括：所述第一终端设备获取所述第一终端设备与所述第二终端设备之间的关联信息，所述关联信息包括所述第一终端设备与所述第二终端设备之间的配对关系或连接关系；
所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案，包括：所述第一终端设备根据所述关联信息和所述测量结果，确定所述第一切换方案和/或所述第二切换方案。
可选地，在第一方面的一种实现方式中，若所述第一终端设备处于连接状态，所述方法还包括：所述第一终端设备向所述第一网络设备发送切换信 息，所述切换信息包括以下信息中的至少一种：所述第一切换方案的信息、所述第二切换方案的信息和所述测量结果。
可选地，在第一方面的一种实现方式中，在所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案之前，所述方法还包括：所述第一终端设备接收所述第一网络设备发送的配置信息，所述配置信息用于指示所述第一终端设备优先发送所述第一终端设备待切换的小区的信息，所述待切换的小区使得所述第一终端设备与所述第二终端设备满足信号强度条件且位于同一网络设备覆盖的小区。
可选地，在第一方面的一种实现方式中，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备，
可选地，在第一方面的一种实现方式中，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
可选地，在第一方面的一种实现方式中，所述第一终端设备获取链路的测量结果，包括：所述第一终端设备确定所述第一终端设备与所述第一网络设备之间的链路的测量结果，并接收所述第二终端设备发送的所述第一网络设备与所述第二终端设备之间的链路的测量结果。
可选地，在第一方面的一种实现方式中，所述第一终端设备获取链路的测量结果，还包括：所述第一终端设备确定所述第一终端设备与第二终端设备之间的链路的测量结果；或者所述第一终端设备接收所述第二终端设备发送的所述第一终端设备与所述第二终端设备之间的链路的测量结果。
可选地，在第一方面的一种实现方式中，所述第一终端设备获取链路的测量结果，包括：第一终端设备获取所述第二终端设备发送的承载在适配层或直连接口协议栈PC5中的链路的测量结果。
第二方面，提供了一种切换方法，包括：第二终端设备获取链路的测量结果，所述链路包括所述第二终端设备与第一网络设备之间的链路的测量结果；所述第二终端设备向所述第一终端设备发送所述测量结果，所述测量结果用于所述第一终端设备确定所述第二终端设备的第二切换方案；所述第二终端设备接收所述第一终端设备发送的切换命令，并根据所述切换命令，执行所述第二切换方案。
因此，终端设备通过向另一终端设备上报自己的链路信息，使另一终端设备可以根据两个终端设备的链路信息来决策两个终端设备的切换方案，以使得两个终端设备进行小区切换或小区重选后，能够尽可能地位于相同网络设备覆盖的小区中，从而在中继终端和远端终端进行小区切换后，中继终端和远端终端之间可以继续进行有效地中继传输。
并且，由于第一切换方案和第二切换方案是由终端设备来确定的，这样，在终端设备处于非激活状态或者空闲状态时，终端设备可以不通过网络设备，而是自行确定切换方案，以更好地保证终端设备之间的业务的连续性。
可选地，在第二方面的一种实现方式中，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
可选地，在第二方面的一种实现方式中，若所述第一终端设备处于连接状态，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；
若所述第一终端设备处于非激活状态或空闲状态，所述第一切换方案包括所述第一终端设备重选所述第二网络设备覆盖的小区作为待接入的小区，或者所述第一终端设备不进行小区重选；
若所述第二终端设备处于连接状态，所述第二切换方案包括所述第二终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区或其他网络设备覆盖的小区，或者所述第二终端设备不进行小区切换；
若所述第二终端设备处于非激活状态或空闲状态，所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
可选地，在第二方面的一种实现方式中，若所述第一终端设备确定所述第一终端设备与所述第二终端设备之间保持链路连接，则所述第二终端设备执行所述第二切换方案后，所述第二终端设备和所述第一终端设备位于相同网络设备覆盖的小区。
可选地，在第二方面的一种实现方式中，若所述第一终端设备确定第一终端设备和所述第二终端设备之间不保持链路连接，所述方法还包括：所述第二终端设备接收所述第一终端设备发送的释放指示信息，并根据所述释放指示信息，释放与所述第一终端设备之间的链路连接。
可选地，在第二方面的一种实现方式中，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
可选地，在第二方面的一种实现方式中，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
可选地，在第二方面的一种实现方式中，所述第二终端设备向所述第一终端设备发送所述测量结果，包括：所述第二终端设备向所述第一终端设备发送承载在适配层或直连接口协议栈PC5中的所述测量结果。
第三方面，提供了一种切换方法，包括：第一网络设备接收第一终端设备发送的切换信息，所述切换信息包括以下信息中的至少一种：所述第一终端设备确定的所述第一终端设备的第一切换方案、第二终端设备的第二切换方案和链路的测量结果，所述链路包括所述第一终端设备与所述第一网络设备之间的链路，以及所述第二终端设备与所述第一网络设备之间的链路；所述第一网络设备根据所述切换信息，对所述第一切换方案和/或所述第二切换方案进行确认。
因此，网络设备接收终端设备发送的该终端设备确定的切换方案的信息后，对该切换方案进行确认，从而判断中继终端设备和远端终端设备各自的切换方案是否合适。由于终端设备确定的切换方案使得两个终端设备在进行小区切换或小区重选后，能够尽可能地都位于自己覆盖的小区中，从而能够在中继终端和远端终端进行小区切换后，使中继终端和远端终端之间继续进行有效地中继传输。
可选地，在第三方面的一种实现方式中，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
可选地，在第三方面的一种实现方式中，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
可选地，在第三方面的一种实现方式中，所述方法还包括：所述第一网络设备向所述终端设备发送配置信息，所述配置信息用于指示所述第一终端设备优先发送所述第一终端设备待切换的小区的信息，所述待切换的小区使 得所述第一终端设备与所述第二终端设备满足信号强度条件且位于同一网络设备覆盖的小区。
可选地，在第三方面的一种实现方式中，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
可选地，在第三方面的一种实现方式中，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
第四方面，提供了一种终端设备，该终端设备可以执行上述第一方面或第一方面的任意可选的实现方式中的终端设备的操作。具体地，该终端设备可以包括用于执行上述第一方面或第一方面的任意可能的实现方式中的终端设备的操作的模块单元。
第五方面，提供了一种终端设备，该终端设备可以执行上述第二方面或第二方面的任意可选的实现方式中的终端设备的操作。具体地，该终端设备可以包括用于执行上述第二方面或第二方面的任意可能的实现方式中的终端设备的操作的模块单元。
第六方面，提供了一种网络设备，该网络设备可以执行上述第三方面或第三方面的任意可选的实现方式中的网络设备的操作。具体地，该网络设备可以包括用于执行上述第三方面或第三方面的任意可能的实现方式中的网络设备的操作的模块单元。
第七方面，提供了一种终端设备，该终端设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该终端设备执行第一方面或第一方面的任意可能的实现方式中的方法，或者该执行使得该终端设备实现第四方面提供的终端设备。
第八方面，提供了一种终端设备，该终端设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该终端设备执行第二方面或第二方面的任意可能的实现方式中的方法，或者该执行使得该终端设备实现第五方面提供的终端设备。
第九方面，提供了一种网络设备，该网络设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该网络设备执行第三方面或第三方面的任意可能的实现方式中的方法，或者该执行使得该网络设备实现第六方面提供的网络设备。
第十方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序，所述程序使得网络设备执行上述第一方面，及其各种实现方式中的任一种切换方法。
第十一方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序，所述程序使得网络设备执行上述第二方面，及其各种实现方式中的任一种切换方法。
第十二方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序，所述程序使得网络设备执行上述第三方面，及其各种实现方式中的任一种切换方法。
第十三方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第一方面及其各种实现方式中的任一种方法。
第十四方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第二方面及其各种实现方式中的任一种方法。
第十五方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第三方面及其各种实现方式中的任一种方法。
附图说明
图1是现有技术的终端设备中继传输的示意图。
图2(a)是现有技术的终端设备中继传输的示意图。
图2(b)是现有技术的终端设备中继传输的示意图。
图3是本申请实施例的一种应用场景的示意性架构图。
图4是本申请实施例的切换方法的示意性流程图。
图5是本申请实施例的切换方法的示意性流程图。
图6是本申请实施例的切换方法的示意性流程图。
图7是本申请实施例的切换方法的流程交互图。
图8是本申请实施例的切换方法的流程交互图。
图9是本申请实施例的终端设备的示意性框图。
图10是本申请实施例的终端设备的示意性框图。
图11是本申请实施例的网络设备的示意性框图。
图12是本申请实施例的终端设备的示意性结构图。
图13是本申请实施例的终端设备的示意性结构图。
图14是本申请实施例的网络设备的示意性结构图。
图15是本申请实施例的系统芯片的示意性结构图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
应理解，本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile Communication，简称“GSM”)系统、码分多址(Code Division Multiple Access，简称“CDMA”)系统、宽带码分多址(Wideband Code Division Multiple Access，简称“WCDMA”)系统、长期演进(Long Term Evolution，简称“LTE”)系统、LTE频分双工(Frequency Division Duplex，简称“FDD”)系统、LTE时分双工(Time Division Duplex，简称“TDD”)、通用移动通信系统(Universal Mobile Telecommunication System，简称“UMTS”)、以及未来的5G通信系统等。
本申请结合终端设备描述了各个实施例。终端设备也可以指用户设备(User Equipment，简称“UE”)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称“SIP”)电话、无线本地环路(Wireless Local Loop，简称“WLL”)站、个人数字处理(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陆上公用移动通信网(Public Land Mobile Network，简称“PLMN”)网络中的终端设备等。
本申请结合网络设备描述了各个实施例。网络设备可以是用于与终端设备进行通信的设备，例如，可以是GSM系统或CDMA中的基站(Base Transceiver Station，简称“BTS”)，也可以是WCDMA系统中的基站(NodeB，简称“NB”)，还可以是LTE系统中的演进型基站(Evolutional Node B，简称“eNB”或“eNodeB”)，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络侧设备或未来演进的PLMN网络中的网络侧设备等。
图3是本申请实施例的一个应用场景的示意图。图3中的通信系统可以包括网络设备10、网络设备20、终端设备30和终端设备40。网络设备10用于为终端设备30和终端设备40提供通信服务，终端设备40为远端终端设备例如手表，终端设备30为中继终端设备例如手机，终端设备40可以通过终端设备30与网络设备10之间进行数据传输。终端设备30和终端设备40如果处于同一位置例如都在用户身上，此时两个终端设备会同时进行相同方向相同速度的移动，在移动过程中如果需要进行小区切换，如果两个终端设备被切换至不同网络设备覆盖的小区，那么会对中继终端和远端终端之间的中继传输造成很大影响。因此，在两个终端设备移动过程中进行小区切换时，希望能够是终端设备30和终端设备40被切换至相同网络设备覆盖的小区，如图3所示，终端设备30和终端设备40由网络设备10被切换至网络设备20覆盖的小区中，这时终端设备和终端设备40可以有效地进行正常中继传输。图3中所示出的箭头可以表示通过终端设备20与网络设备10之间的蜂窝链路进行的上/下行传输。
本申请实施例中的网络可以是指公共陆地移动网络(Public Land Mobile Network，简称“PLMN”)或者设备对设备(Device to Device，简称“D2D”)网络或者机器对机器/人(Machine to Machine/Man，简称“M2M”)网络或者其他网络，图3只是举例的简化示意图，网络中还可以包括其他终端设备，图3中未予以画出。
图4是本申请实施例的切换方法400的示意性流程图。该方法可以由第 一终端设备执行，该第一终端设备可以是中继终端设备例如图3中的终端设备30或者是远端终端设备例如图3中的终端设备40。如图4所示，该切换方法包括：
在410中，第一终端设备获取链路的测量结果，该链路包括第一终端设备与第一网络设备之间的链路，以及第一网络设备与第二终端设备之间的链路。
在420中，第一终端设备根据该测量结果，确定第一终端设备的第一切换方案和/或第二终端设备的第二切换方案。
可选地，第一终端设备与第二终端设备中的至少一个终端设备处于非激活状态或者空闲状态。
可选地，第一终端设备为中继终端设备，第二终端设备为远端终端设备，或者第一终端设备为远端终端设备，第二终端设备为中继终端设备。
可选地，该方法还包括：第一终端设备在确定第一切换方案后，执行该第一切换方案。
具体来说，第一终端设备和第二终端设备在进行小区切换时，第一终端设备可以获取第一网络设备与第一终端设备之间的链路的测量结果，以及第一网络设备与第二终端设备之间的链路的测量结果，这些链路的测量结果能够用于为第一终端设备确定第一切换方案，以及为第二终端设备确定第二切换方案。由于第一终端设备同时获取第一终端设备与第一网络设备之间的链路的测量结果，以及第二终端设备与第一网络设备之间的链路的测量结果，因而第一终端设备在为第一终端设备和第二终端设备确定各自的切换方案时，可以综合考虑多条链路的测量结果，尽可能地为第一终端设备和第二终端设备选择相同网络设备覆盖的小区作为待切换的小区或者重选的待接入的小区。
例如，如果第一终端设备与第二终端设备之间存在业务数据交互，那么当这两个终端设备移动过程需要进行小区切换时，第一网络设备在确定第一切换方案和第二切换方案时会根据两个终端设备各自的链路测量结果，尽可能地为第一终端设备和第二终端设备选择相同网络设备覆盖的小区作为待切换的小区，以保证终端设备的业务连续性，尽管切换后信号强度并非是最优的。
而且，该实施例中，第一切换方案和第二切换方案是由第一终端设备确 定的，这样，在第一终端设备和/或第二终端设备处于非激活状态或者空闲状态时，终端设备可以不通过网络设备，而是自行确定切换方案，以更好地保证终端设备之间的业务的连续性。
这里，第一终端设备可以确定第一终端设备的第一切换方案，并确定第二终端设备的第二切换方案；第一终端设备也可以只确定第一切换方案，而第二切换方案由第二终端设备自己确定。
如果第一终端设备为第二终端设备确定了第二切换方案，可选地，该方法还包括：第一终端设备向第二终端设备发送切换命令，该切换命令用于指示第二终端设备执行该第二切换方案。
可选地，第一终端设备获取的链路的测量结果，还可以包括第一终端设备与第二终端设备之间的链路的测量结果。
也就是说，第一终端设备不仅可以获取第一网络设备与第一终端设备之间的链路的测量结果，以及第一网络设备与第二终端设备之间的链路的测量结果，还可以获取第一终端设备与第二终端设备之间的链路的测量结果，并综合考虑这三条链路的测量结果，来确定第一切换方案和/或第二切换方案。由于考虑了两个终端设备之间的链路情况，从而使两个终端设备尽可能地切换至相同网络设备覆盖的小区中。
可选地，该链路的测量结果包括该链路的链路质量的测量结果，和/或该链路的链路状态的测量结果。
由于第一终端设备可以确定第一终端设备的链路的测量结果，即第一终端设备与第一网络设备之间的链路的测量结果，以及第一终端设备与第二终端设备之间的链路的测量结果，而第二终端设备可以确定第二终端设备的链路的测量结果，即第二终端设备与第一网络设备之间的链路的测量结果，以及第二终端设备与第一终端设备之间的链路的测量结果。因此，可选地，在410中，第一终端设备获取链路的测量结果，包括：第一终端设备确定第一终端设备与第一网络设备之间的链路的测量结果，并接收第二终端设备发送的第一网络设备与第二终端设备之间的链路的测量结果。
进一步地，第一终端设备获取链路的测量结果，还可以包括：第一终端设备确定第一终端设备与第二终端设备之间的链路的测量结果；或者第一终端设备接收第二终端设备发送的第一终端设备与第二终端设备之间的链路的测量结果。
其中，可选地，第一终端设备获取链路的测量结果，包括：该第一终端设备获取第二终端设备发送的承载在适配层或直连接口协议栈PC5中的链路的测量结果。
即第一终端设备、第二终端设备和第一网络设备之间的测量结果等交互的信息，可以承载在适配层中或者承载在现有的直连接口协议栈PC5的信令或数据中。
可选地，在410中，第一终端设备根据该测量结果，确定第一终端设备的第一切换方案和/或第二终端设备的第二切换方案，包括：第一终端设备根据第一终端设备和第二终端设备所处的状态，以及该测量结果，确定该第一切换方案和/或该第二切换方案。
其中，可选地，若第一终端设备处于连接状态，该第一切换方案包括第一终端设备由第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者第一终端设备不进行小区切换；
若第一终端设备处于非激活状态或空闲状态，该第一切换方案包括第一终端设备重选第二网络设备覆盖的小区作为待接入的小区，或者第一终端设备不进行小区重选；
若第二终端设备处于连接状态，该第二切换方案包括第二终端设备由第一网络设备覆盖的小区切换至第二网络设备覆盖的小区或其他网络设备覆盖的小区，或者第二终端设备不进行小区切换；
若第二终端设备处于非激活状态或空闲状态，该第二切换方案包括第二终端设备重选第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者第二终端设备不进行小区重选。
这里，若第一切换方案使得第一终端设备切换或重选至第二终端设备覆盖的小区中，那么第二切换方案可以使得第二终端设备切换或重选至与第一终端设备相同的网络设备即第二网络设备覆盖的小区中，但是在信号强度条件不允许的情况下，或者第一终端设备与第二终端设备之间不需要保持链路连接、不应该保持链路连接或者不适合再继续保持链路连接时，第二终端设备也可以切换至其他网络设备覆盖的小区中或者重选其他网络设备覆盖的小区作为待接入的小区。
可选地，第一终端设备根据该测量结果，确定第一终端设备的第一切换方案和/或第二终端设备的第二切换方案，包括：第一终端设备根据该测量结 果，确定第一终端设备与第二终端设备之间是否保持链路连接；第一终端设备根据第一终端设备与第二终端设备之间是否保持链路连接，确定该第一切换方案和/或该第二切换方案。
进一步地，若第一终端设备确定第一终端设备与第二终端设备之间保持链路连接，则第一终端设备执行该第一切换方案且第二终端设备执行该第二切换方案后，第一终端设备和第二终端设备位于相同网络设备覆盖的小区。
具体来说，若第一网络设备确定第一终端设备与第二终端设备之间保持链路连接，例如，第一网络设备确定第一终端设备与第二终端设备之间应该保持链路连接，或者需要继续保持链路连接时，第一网络设备确定的第一切换方案和/或第二切换方案，会使得第一终端设备执行第一切换方案且第二终端设备执行第二切换方案后，第一终端设备和第二终端设备位于相同网络设备覆盖的小区。
若第一网络设备确定第一终端设备与第二终端设备之间不保持链路连接，例如第一网络设备确定第一终端设备与第二终端设备之间不应该继续保持链路连接，或者不需要继续保持链路连接，或者信号强度无法满足第一终端设备与第二终端设备之间的链路要求，那么第一网络设备确定的第一切换方案和/或第二切换方案，可以使第一终端设备执行第一切换方案且第二终端设备执行第二切换方案后，第一终端设备和第二终端设备位于相同或者不同网络设备覆盖的小区。
可选地，若第一终端设备确定第一终端设备和第二终端设备之间不保持链路连接，该方法还包括：第一终端设备向第二终端设备发送释放指示信息，该释放指示信息用于指示第二终端设备释放与第一终端设备之间的链路连接。
可选地，在420之前，即，在第一终端设备根据该测量结果，确定第一终端设备的第一切换方案和/或第二终端设备的第二切换方案之前，该方法还包括：第一终端设备获取第一终端设备与第二终端设备之间的关联信息，该关联信息包括第一终端设备与第二终端设备之间的配对关系或连接关系。
其中，第一终端设备根据该测量结果，确定第一终端设备的第一切换方案和/或第二终端设备的第二切换方案，包括：第一终端设备根据该关联信息和该测量结果，确定该第一切换方案和/或该第二切换方案。
具体来说，第一终端设备还可以根据第一终端设备与第二终端设备之间 的配对关系或连接关系，以及链路的测量结果，来共同确定第一切换方案和/或第二切换方案。例如，如果第一终端设备与第二终端设备处于连接关系，还存在数据交互，那么在确定第一切换方案和/或第二切换方案时，第一终端设备会根据链路的测量结果，尽可能地为第一终端设备和第二终端设备选择相同网络设备覆盖的小区作为待切换的小区或者重选的待接入的小区，尽管切换后信号强度并非是最优的。
可选地，若第一终端设备处于连接状态，该方法还包括：第一终端设备向第一网络设备发送切换信息，该切换信息包括以下信息中的至少一种：该第一切换方案的信息、该第二切换方案的信息和链路的测量结果。
具体来说，第一终端设备确定第一终端设备的第一切换方案和/或第二终端设备的第二切换方案后，还可以将第一切换方案和第二切换方案上报给第一网络设备，以使得第一网络设备对第一切换方案和/或第二切换方案进行确认，确定第一终端设备和/或第二终端设备是否能够执行自己的切换方案从而切换到合适的网络下。该第一切换方案的信息中可以包括第一终端设备待切换的小区或者重选的小区的信息(即第一终端设备倾向的切换小区或重选小区)，该第二切换方案的信息中可以包括第二终端设备待切换的小区或者重选的小区的信息(即第二终端设备倾向的切换小区或重选小区)。
举例来说，第一终端设备确定的第一切换方案包括第一终端设备切换至第二网络设备覆盖的小区中，第一终端设备可以将该第一切换方案的信息和链路的测量结果发送给第一网络设备。第一网络设备可以根据接收到的测量信息和第一切换方案的信息，确定第一终端设备选择切换至第二网络设备覆盖的小区中是否合适。
进一步地，可选地，在第一终端设备根据该测量结果，确定第一终端设备的第一切换方案和/或第二终端设备的第二切换方案之前，该方法还包括：第一终端设备接收该网络设备发送的配置信息，该配置信息用于指示第一终端设备优先发送第一终端设备待切换的小区的信息，该待切换的小区使得第一终端设备与第二终端设备满足信号强度条件且位于同一网络设备覆盖的小区。
也就是说，第一终端设备可以向第一网络设备发送第一切换方案的信息即第一终端设备待切换的小区的信息，还可以同时向第一网络设备发送第一终端设备所测量的所有小区的信息，但是，终端设备在进行上报时，会优先 向第一网络设备上报第一终端设备待切换的小区的信息，其中，第一终端设备待切换的小区为：能够使第一终端设备与第二终端设备既满足切换信号强度条件且位于同一网络的小区。
举例来说，假设第一终端设备获取了第一终端设备、第二终端设备以及第二网络设备中两两相互之间的链路的测量结果，还获取了第一终端设备、第二终端设备以及第三网络设备中两两相互之间的链路的测量结果。如果第一终端设备根据获取的这些测量结果确定的第一切换方案为：第一终端设备切换至第二网络设备覆盖下的A小区，那么由于第一切换方案中的A小区为最优的切换小区(即能够使第一终端设备与第二终端设备既满足切换信号强度条件且位于同一网络覆盖下的小区)，第一终端设备会优先将第一切换方案的信息(即A小区的信息)发送给第一网络设备，之后才会将第三网络设备覆盖下的小区的信息，以及第二网络设备覆盖下的除A小区之外的其他小区的信息发送给第一网络设备。从而第一网络设备可以根据接收到的这些信息，来对该第一切换方案进行确认，以确定该第一切换方案是否合适。
在本申请实施例中，终端设备通过获取中继终端设备的链路信息和远端终端设备的链路信息，来决策两个终端设备的切换方案，使得两个终端设备进行小区切换或小区重选后，能够尽可能地位于相同网络设备覆盖的小区中，从而能够在中继终端和远端终端进行小区切换后，使中继终端和远端终端之间继续进行有效地中继传输。
并且，由于第一切换方案和第二切换方案是由终端设备来确定的，这样，在终端设备处于非激活状态或者空闲状态时，终端设备可以不通过网络设备，而是自行确定切换方案，以更好地保证终端设备之间的业务的连续性。
图5是本申请实施例的切换方法500的示意性流程图。该方法可以由第二终端设备执行，第二终端设备可以为中继终端设备例如图3中的终端设备30或者是远端终端设备例如图3中的终端设备40。如图5所示，该切换方法包括：
在510中，第二终端设备获取链路的测量结果，该链路包括第二终端设备与第一网络设备之间的链路的测量结果。
在520中，第二终端设备向第一终端设备发送该测量结果，该测量结果用于第一终端设备确定第二终端设备的第二切换方案。
在530中，第二终端设备接收第一终端设备发送的切换命令，并根据该 切换命令，执行该第二切换方案。
可选地，第一终端设备为中继终端设备，第二终端设备为远端终端设备，或者第一终端设备为远端终端设备，第二终端设备为中继终端设备。
具体来说，第二终端设备在进行小区切换时，第二终端设备获取第二终端设备与第一网络设备之间的链路的测量结果，并将该测量结果发送给第一终端设备，从而第一终端设备根据第一网络设备与第二终端设备之间的链路的测量结果，以及第一网络设备与第一终端设备之间的链路的测量结果，为第二终端设备确定第二切换方案，或者还可以确定自己的第一切换方案。由于第一终端设备同时获取第二终端设备与第一网络设备之间的链路的测量结果，以及第一终端设备与第一网络设备之间的链路的测量结果，因而第一终端设备为第二终端设备确定切换方案时，可以综合考虑多条链路的测量结果，尽可能地为第二终端设备选择与第一终端设备相同的网络设备覆盖的小区，作为其重选的待接入的小区。
可选地，第二终端设备获取的链路的测量结果，还可以包括第二终端设备与第一终端设备之间的链路的测量结果。
也就是说，第一终端设备可以确定第一网络设备与第一终端设备之间的链路的测量结果，并接收第二终端设备发送的第一网络设备与第二终端设备之间的链路的测量结果，以及第一终端设备与第二终端设备之间的链路的测量结果，从而综合考虑这三条链路的测量结果，来确定第一切换方案和/或第二切换方案。由于考虑了两个终端设备之间的链路情况，从而使两个终端设备尽可能地切换至相同网络设备覆盖的小区中。当然，第一终端设备与第二终端设备之间的链路的测量结果也可以由第一终端设备自己确定。
可选地，该链路的测量结果包括该链路的链路质量的测量结果，和/或该链路的链路状态的测量结果。
可选地，若第一终端设备处于连接状态，该第一切换方案包括第一终端设备由第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者第一终端设备不进行小区切换；
若第一终端设备处于非激活状态或空闲状态，该第一切换方案包括第一终端设备重选第二网络设备覆盖的小区作为待接入的小区，或者第一终端设备不进行小区重选；
若第二终端设备处于连接状态，该第二切换方案包括第二终端设备由第 一网络设备覆盖的小区切换至第二网络设备覆盖的小区或其他网络设备覆盖的小区，或者第二终端设备不进行小区切换；
若第二终端设备处于非激活状态或空闲状态，该第二切换方案包括第二终端设备重选第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者第二终端设备不进行小区重选。
可选地，在520中第二终端设备向第一终端设备发送该测量结果，包括：第二终端设备向第一终端设备发送承载在适配层或直连接口协议栈PC5中的该测量结果。
即第一终端设备、第二终端设备和第一网络设备之间的测量结果等交互的信息，可以承载在适配层中或者承载在现有的直连接口协议栈PC5的信令或数据中。
可选地，若第一终端设备确定第一终端设备与第二终端设备之间保持链路连接，则第二终端设备执行该第二切换方案后，第二终端设备和第一终端设备位于相同网络设备覆盖的小区。
具体来说，第一终端设备可以根据链路的测量结果，确定第一终端设备与第二终端设备之间是否保持链路连接，若第一终端设备确定第一终端设备与第二终端设备之间保持链路连接，例如第一网络设备确定第一终端设备与第二终端设备之间应该保持链路连接，或者需要继续保持链路连接时，第一终端设备确定的第二切换方案，会使得第二终端设备执行该第二切换方案后，第二终端设备和执行第一切换方案后的第一终端设备位于相同网络设备覆盖的小区。
可选地，若第一终端设备确定第一终端设备和第二终端设备之间不保持链路连接，该方法还包括：第二终端设备接收第一终端设备发送的释放指示信息，并根据该释放指示信息，释放与第一终端设备之间的链路连接。
可选地，若该第二切换方案包括第二终端设备重选第二网络设备覆盖的小区作为待接入的小区，则该切换命令还包括第二终端设备重选的待接入小区的信息。
可选地，若该第二切换方案包括第二终端设备切换至第二网络设备覆盖的小区，则该切换命令还包括第二终端设备用于进行小区切换的资源。
在本申请实施例中，终端设备通过向另一终端设备上报自己的链路信息，使另一终端设备可以根据两个终端设备的链路信息来决策两个终端设备 的切换方案，以使得两个终端设备进行小区切换或小区重选后，能够尽可能地位于相同网络设备覆盖的小区中，从而在中继终端和远端终端进行小区切换后，中继终端和远端终端之间可以继续进行有效地中继传输。
并且，由于第一切换方案和第二切换方案是由终端设备来确定的，这样，在终端设备处于非激活状态或者空闲状态时，终端设备可以不通过网络设备，而是自行确定切换方案，以更好地保证终端设备之间的业务的连续性。
图6是本申请实施例的切换方法600的示意性流程图。该方法可以由第二网络设备例如图3中的网络设备10来执行。如图6所示，该切换方法包括：
在610中，第一网络设备接收第一终端设备发送的切换信息，该切换信息包括以下信息中的至少一种：第一终端设备确定的第一终端设备的第一切换方案、第二终端设备的第二切换方案和链路的测量结果，该链路包括第一终端设备与第一网络设备之间的链路，以及第二终端设备与第一网络设备之间的链路。
在620中，第一网络设备根据该切换信息，对该第一切换方案和/或该第二切换方案进行确认。
可选地，该链路的测量结果包括该链路的链路质量的测量结果，和/或该链路的链路状态的测量结果。
可选地，第一终端设备为中继终端设备，第二终端设备为远端终端设备，或者第一终端设备为远端终端设备，第二终端设备为中继终端设备。
具体来说，第一终端设备和第二终端设备在进行小区切换时，第一终端设备可以获取第一网络设备与第一终端设备之间的链路的测量结果，以及第一网络设备与第二终端设备之间的链路的测量结果，第一终端设备可以根据这些链路的测量结果确定第一终端设备的第一切换方案，并确定第二终端设备的第二切换方案。这时，第一终端设备还可以将该第一切换方案、第二切换方案、和链路的测量结果中的至少一项发送给第一网络设备，第一网络设备根据接收到的这些切换信息，对该第一切换方案和/或该第二切换方案进行确认，以确定该第一切换方案和/或第二切换方案是否为最优的切换方案，即确定第一终端设备和/或第二终端设备是否能够执行自己的切换方案从而切换到合适的网络下或者重选到合适的网络作为待接入的网络。
举例来说，第一终端设备确定的第一切换方案包括第一终端设备切换至 第二网络设备覆盖的小区中，第一终端设备可以将该第一切换方案的信息和链路的测量结果发送给第一网络设备。第一网络设备可以根据接收到的测量信息和第一切换方案的信息，确定第一终端设备选择切换至第二网络设备覆盖的小区中是否合适。
可选地，该第一切换方案包括第一终端设备由第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者第一终端设备不进行小区切换；该第二切换方案包括第二终端设备重选第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者第二终端设备不进行小区重选。
可选地，该方法还包括：该网络设备向该终端设备发送配置信息，该配置信息用于指示第一终端设备优先发送第一终端设备待切换的小区的信息，该待切换的小区使得第一终端设备与第二终端设备满足信号强度条件且位于同一网络设备覆盖的小区。
也就是说，第一终端设备可以向第一网络设备发送第一切换方案的信息即第一终端设备待切换的小区的信息，还可以同时向第一网络设备发送第一终端设备所测量的所有小区的信息，但是，终端设备在进行上报时，会优先向第一网络设备上报第一终端设备待切换的小区的信息，其中，第一终端设备待切换的小区为：能够使第一终端设备与第二终端设备既满足切换信号强度条件且位于同一网络的小区。
例如，假设第一终端设备获取了第一终端设备、第二终端设备以及第二网络设备之间的链路的测量结果，还获取了第一终端设备、第二终端设备以及第三网络设备之间的链路的测量结果。如果第一终端设备根据获取的这些测量结果确定的第一切换方案为：第一终端设备切换至第二网络设备覆盖下的A小区，那么由于第一切换方案中的A小区为最优的切换小区(即能够使第一终端设备与第二终端设备既满足切换信号强度条件且位于同一网络覆盖下的小区)，第一终端设备会优先将第一切换方案的信息(即A小区的信息)发送给第一网络设备，之后才会将第三网络设备覆盖下的小区的信息，以及第二网络设备覆盖下除A小区之外的其他小区的信息发送给第一网络设备。从而第一网络设备可以根据接收到的这些信息，来对该第一切换方案进行确认。
在本申请实施例中，网络设备接收终端设备发送的该终端设备确定的切换方案的信息后，对该切换方案进行确认，从而判断中继终端设备和远端终 端设备各自的切换方案是否合适。由于终端设备确定的切换方案使得两个终端设备在进行小区切换或小区重选后，能够尽可能地都位于自己覆盖的小区中，从而能够在中继终端和远端终端进行小区切换后，使中继终端和远端终端之间继续进行有效地中继传输。
下面结合图7和图8，举两个详细的例子，来具体描述本申请实施例的切换方法。应理解，图7和图8仅为示例，本申请实施例并不限于此。
图7是本申请实施例的切换方法的流程交互图。图7中的第一终端设备处于连接状态，第二终端设备处于非激活状态或空闲状态。如图7所示，该方法包括：
701、第二终端设备向第一终端设备发送第二终端设备的链路的测量结果。
其中，第二终端设备的链路的测量结果包括第二终端设备与第一网络设备之间的链路(例如链路状况或者链路质量等)的测量结果。
702、第一网络设备确定第一终端设备的第一切换方案和第二终端设备的第二切换方案。
具体地，第一终端设备根据第一终端设备的链路的测量结果，和第二终端设备的链路的测量结果，确定第一切换方案和第二切换方案。
其中，第一终端设备的链路的测量结果包括第一终端设备与第一网络设备之间的链路的测量结果、以及第一终端设备与第二终端设备之间的链路的测量结果。
可选地，第一终端设备还可以获取第一终端设备与第二终端设备之间的配对关系/连接关系，从而根据该配对关系/连接关系，以及上述链路的测量结果，确定第一切换方案和第二切换方案。
其中，第一切换方案包括第一终端设备由第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，第二切换方案包括第二终端设备重选第二网络设备覆盖的小区作为待接入的小区。
703、第一网络设备向第一网络设备发送切换信息。
其中，该切换信息包括以下信息中的至少一种：第一终端设备确定的第一终端设备的第一切换方案、第二终端设备的第二切换方案和链路的测量结果。
704、第一网络设备根据该切换信息，对该第一切换方案和第二切换方 案进行确认。
705、第一网络设备向第一终端设备发送确认消息。
706、第一终端设备接收确认消息后，向第二终端设备发送切换指示消息。
其中，该切换指示消息中包括第二终端设备待重选的小区的小区信息，该第二切换指示信息用于指示第二终端设备执行第二切换方案。
707、第一终端设备执行第一切换方案，切换至第二网络设备覆盖的小区。
708、第二终端设备执行第二切换方案，切换至第二网络设备覆盖的小区。
如果第一终端设备确定第一终端设备和第二终端设备之间不需要或不应改或者不适合继续保持链路连接、或者当前的信号强度条件无法更好地使第一终端设备和第二终端设备之间保持链路连接，那么第一终端设备还可以向第二终端设备发送释放指示信息，以指示释放彼此之间的链路连接。该释放指示信息可以通过切换指示信息一起下发给第二终端设备。
图8是本申请实施例的切换方法的流程交互图。图8中的第一终端设备和第二终端设备均处于非激活状态或空闲状态。如图8所示，该方法包括：
801、第二终端设备向第一终端设备发送第二终端设备的链路的测量结果。
其中，第二终端设备的链路的测量结果包括第二终端设备与第一网络设备之间的链路(例如链路状况或者链路质量等)的测量结果。
802、第一终端设备确定第一终端设备的第一切换方案和第二终端设备的第二切换方案。
具体地，第一终端设备根据第一终端设备的链路的测量结果，和第二终端设备的链路的测量结果，确定第一切换方案和第二切换方案。
其中，第一终端设备的链路的测量结果包括第一终端设备与第一网络设备之间的链路的测量结果、以及第一终端设备与第二终端设备之间的链路的测量结果。
可选地，第一终端设备还可以获取第一终端设备与第二终端设备之间的配对关系/连接关系，从而根据该配对关系/连接关系，以及上述链路的测量结果，确定第一切换方案和第二切换方案。
其中，第一切换方案包括第一终端设备重选第二网络设备覆盖的小区作为待接入的小区，第二切换方案包括第二终端设备重选第二网络设备覆盖的小区作为待接入的小区。
803、第一终端设备向第二终端设备发送切换指示消息。。
其中，该切换指示消息中包括第二终端设备待重选的小区的小区信息，该第二切换指示信息用于指示第二终端设备执行第二切换方案。
804、第一终端设备执行第一切换方案，重选第二网络设备覆盖的小区作为待接入的小区。
805、第二终端设备执行第二切换方案，重选第二网络设备覆盖的小区作为待接入的小区。
如果第一终端设备确定第一终端设备和第二终端设备之间不需要或不应改或者不适合继续保持链路连接、或者当前的信号强度条件无法更好地使第一终端设备和第二终端设备之间保持链路连接，那么第一终端设备还可以向第二终端设备发送释放指示信息，以指示释放彼此之间的链路连接。该释放指示信息可以通过切换指示信息一起下发给第二终端设备。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
图9是根据本申请实施例的终端设备900的示意性框图。如图9所示，该终端设备900包括获取单元910和确定单元920。其中：
获取单元910，用于获取链路的测量结果，所述链路包括所述第一终端设备与第一网络设备之间的链路，以及所述第一网络设备与第二终端设备之间的链路；
确定单元920，用于根据所述获取单元910获取的所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案。
因此，终端设备通过获取中继终端设备的链路信息和远端终端设备的链路信息，来决策两个终端设备的切换方案，使得两个终端设备进行小区切换或小区重选后，能够尽可能地位于相同网络设备覆盖的小区中，从而能够在中继终端和远端终端进行小区切换后，使中继终端和远端终端之间继续进行有效地中继传输。
并且，由于第一切换方案和第二切换方案是由终端设备来确定的，这样， 在终端设备处于非激活状态或者空闲状态时，终端设备可以不通过网络设备，而是自行确定切换方案，以更好地保证终端设备之间的业务的连续性。
可选地，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
可选地，所述第一终端设备还包括发送单元，用于：向所述第二终端设备发送切换命令，所述切换命令用于指示所述第二终端设备执行所述第二切换方案。
可选地，所述确定单元920具体用于：根据所述第一终端设备和所述第二终端设备所处的状态，以及所述测量结果，确定所述第一切换方案和/或所述第二切换方案。
可选地，若所述第一终端设备处于连接状态，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；
若所述第一终端设备处于非激活状态或空闲状态，所述第一切换方案包括所述第一终端设备重选所述第二网络设备覆盖的小区作为待接入的小区，或者所述第一终端设备不进行小区重选；
若所述第二终端设备处于连接状态，所述第二切换方案包括所述第二终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区或其他网络设备覆盖的小区，或者所述第二终端设备不进行小区切换；
若所述第二终端设备处于非激活状态或空闲状态，所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
可选地，所述确定单元920具体用于：根据所述测量结果，确定所述第一终端设备与所述第二终端设备之间是否保持链路连接；根据所述第一终端设备与所述第二终端设备之间是否保持链路连接，确定所述第一切换方案和/或所述第二切换方案。
可选地，若所述第一终端设备确定所述第一终端设备与所述第二终端设备之间保持链路连接，则所述第一终端设备执行所述第一切换方案且所述第二终端设备执行所述第二切换方案后，所述第一终端设备和所述第二终端设备位于相同网络设备覆盖的小区。
可选地，若所述第一终端设备确定所述第一终端设备和所述第二终端设 备之间不保持链路连接，所述发送单元还用于：向所述第二终端设备发送释放指示信息，所述释放指示信息用于指示所述第二终端设备释放与所述第一终端设备之间的链路连接。
可选地，所述获取单元910具体用于：在所述确定单元920根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案之前，获取所述第一终端设备与所述第二终端设备之间的关联信息，所述关联信息包括所述第一终端设备与所述第二终端设备之间的配对关系或连接关系；
所述确定单元920具体用于：根据所述关联信息和所述测量结果，确定所述第一切换方案和/或所述第二切换方案。
可选地，若所述第一终端设备处于连接状态，所述发送单元还用于：向所述第一网络设备发送切换信息，所述切换信息包括以下信息中的至少一种：所述第一切换方案的信息、所述第二切换方案的信息和所述测量结果。
可选地，所述第一终端设备还包括接收单元，用于：在所述确定单元920根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案之前，接收所述第一网络设备发送的配置信息，所述配置信息用于指示所述第一终端设备优先发送所述第一终端设备待切换的小区的信息，所述待切换的小区使得所述第一终端设备与所述第二终端设备满足信号强度条件且位于同一网络设备覆盖的小区。
可选地，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
可选地，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
可选地，所述获取单元910具体用于：确定所述第一终端设备与所述第一网络设备之间的链路的测量结果，并接收所述第二终端设备发送的所述第一网络设备与所述第二终端设备之间的链路的测量结果。
可选地，所述获取单元910具体用于：所述第一终端设备确定所述第一终端设备与第二终端设备之间的链路的测量结果；或者所述第一终端设备接收所述第二终端设备发送的所述第一终端设备与所述第二终端设备之间的链路的测量结果。
可选地，所述获取单元910具体用于：第一终端设备获取所述第二终端设备发送的承载在适配层或直连接口协议栈PC5中的链路的测量结果。
图10是根据本申请实施例的终端设备1000的示意性框图。如图10所示，该终端设备1000包括获取单元1010、发送单元1020和处理单元1030。其中：
获取单元1010，用于获取链路的测量结果，所述链路包括所述第二终端设备与第一网络设备之间的链路的测量结果；
发送单元1020，用于向所述第一终端设备发送所述获取单元1010获取的所述测量结果，所述测量结果用于所述第一终端设备确定所述第二终端设备的第二切换方案；
处理单元1030，用于接收所述第一终端设备发送的切换命令，并根据所述切换命令，执行所述第二切换方案。
因此，终端设备通过向另一终端设备上报自己的链路信息，使另一终端设备可以根据两个终端设备的链路信息来决策两个终端设备的切换方案，以使得两个终端设备进行小区切换或小区重选后，能够尽可能地位于相同网络设备覆盖的小区中，从而在中继终端和远端终端进行小区切换后，中继终端和远端终端之间可以继续进行有效地中继传输。
并且，由于第一切换方案和第二切换方案是由终端设备来确定的，这样，在终端设备处于非激活状态或者空闲状态时，终端设备可以不通过网络设备，而是自行确定切换方案，以更好地保证终端设备之间的业务的连续性。
可选地，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
可选地，若所述第一终端设备处于连接状态，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；
若所述第一终端设备处于非激活状态或空闲状态，所述第一切换方案包括所述第一终端设备重选所述第二网络设备覆盖的小区作为待接入的小区，或者所述第一终端设备不进行小区重选；
若所述第二终端设备处于连接状态，所述第二切换方案包括所述第二终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区或其他网络设备覆盖的小区，或者所述第二终端设备不进行小区切换；
若所述第二终端设备处于非激活状态或空闲状态，所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
可选地，若所述第一终端设备确定所述第一终端设备与所述第二终端设备之间保持链路连接，则所述第二终端设备执行所述第二切换方案后，所述第二终端设备和所述第一终端设备位于相同网络设备覆盖的小区。
可选地，若所述第一终端设备确定第一终端设备和所述第二终端设备之间不保持链路连接，所述处理单元1030还用于：接收所述第一终端设备发送的释放指示信息，并根据所述释放指示信息，释放与所述第一终端设备之间的链路连接。
可选地，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
可选地，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
可选地，所述发送单元1020具体用于：向所述第一终端设备发送承载在适配层或直连接口协议栈PC5中的所述测量结果。
图11是根据本申请实施例的网络设备1100的示意性框图。如图11所示，该网络设备1100包括接收单元1110和处理单元1120。其中：
接收单元1110，用于接收第一终端设备发送的切换信息，所述切换信息包括以下信息中的至少一种：所述第一终端设备确定的所述第一终端设备的第一切换方案、第二终端设备的第二切换方案和链路的测量结果，所述链路包括所述第一终端设备与所述第一网络设备之间的链路，以及所述第二终端设备与所述第一网络设备之间的链路；
处理单元1120，用于根据所述接收单元1110接收的所述切换信息，对所述第一切换方案和/或所述第二切换方案进行确认。
因此，网络设备接收终端设备发送的该终端设备确定的切换方案的信息后，对该切换方案进行确认，从而判断中继终端设备和远端终端设备各自的切换方案是否合适。由于终端设备确定的切换方案使得两个终端设备在进行小区切换或小区重选后，能够尽可能地都位于自己覆盖的小区中，从而能够在中继终端和远端终端进行小区切换后，使中继终端和远端终端之间继续进 行有效地中继传输。
可选地，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
可选地，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
可选地，所述第一网络设备还包括发送单元，用于：向所述终端设备发送配置信息，所述配置信息用于指示所述第一终端设备优先发送所述第一终端设备待切换的小区的信息，所述待切换的小区使得所述第一终端设备与所述第二终端设备满足信号强度条件且位于同一网络设备覆盖的小区。
可选地，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
可选地，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
图12是根据本申请实施例的终端设备1200的示意性结构图。如图12所示，该终端设备包括处理器1210、收发器1220和存储器1230，其中，该处理器1210、收发器1220和存储器1230之间通过内部连接通路互相通信。该存储器1230用于存储指令，该处理器1210用于执行该存储器1230存储的指令，以控制该收发器1220接收信号或发送信号。
其中，该处理器1210用于：获取链路的测量结果，所述链路包括所述第一终端设备与第一网络设备之间的链路，以及所述第一网络设备与第二终端设备之间的链路；根据所述获取单元获取的所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案。
可选地，该处理器1210可以调用存储器1230中存储的程序代码，执行图4所示的方法400中的终端设备的相应操作，为了简洁，在此不再赘述。
应理解，在本申请实施例中，该处理器1210可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器1210还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA) 或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器1230可以包括只读存储器和随机存取存储器，并向处理器1210提供指令和数据。存储器1230的一部分还可以包括非易失性随机存取存储器。例如，存储器1230还可以存储设备类型的信息。
在实现过程中，上述方法的各步骤可以通过处理器1210中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的定位方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器1210中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1230，处理器1210读取存储器1230中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
根据本申请实施例的终端设备1200可以对应于上述方法400中用于执行方法400的终端设备，以及根据本申请实施例的终端设备900，且该终端设备1200中的各单元或模块分别用于执行上述方法400中终端设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图13是根据本申请实施例的终端设备1300的示意性结构图。如图13所示，该终端设备包括处理器1310、收发器1320和存储器1330，其中，该处理器1310、收发器1320和存储器1330之间通过内部连接通路互相通信。该存储器1330用于存储指令，该处理器1310用于执行该存储器1330存储的指令，以控制该收发器1320接收信号或发送信号。
其中，该处理器1310用于：获取链路的测量结果，所述链路包括所述第二终端设备与第一网络设备之间的链路的测量结果；
该收发器1320用于：向所述第一终端设备发送所述获取单元获取的所述测量结果，所述测量结果用于所述第一终端设备确定所述第二终端设备的第二切换方案；接收所述第一终端设备发送的切换命令，所述切换命令指示所述第二终端设备执行所述第二切换方案；
该处理器1310还用于：根据所述切换命令，执行所述第二切换方案。
可选地，该处理器1310可以调用存储器1330中存储的程序代码，执行图5所示的方法500中的终端设备的相应操作，为了简洁，在此不再赘述。
应理解，在本申请实施例中，该处理器1310可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器1310还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器1330可以包括只读存储器和随机存取存储器，并向处理器1310提供指令和数据。存储器1330的一部分还可以包括非易失性随机存取存储器。例如，存储器1330还可以存储设备类型的信息。
在实现过程中，上述方法的各步骤可以通过处理器1310中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的定位方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器1310中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1330，处理器1310读取存储器1330中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
根据本申请实施例的终端设备1300可以对应于上述方法500中用于执行方法500的终端设备，以及根据本申请实施例的终端设备1000，且该终端设备1300中的各单元或模块分别用于执行上述方法500中终端设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图14是根据本申请实施例的网络设备1400的示意性结构图。如图14所示，该网络设备包括处理器1410、收发器1420和存储器1430，其中，该处理器1410、收发器1420和存储器1430之间通过内部连接通路互相通信。该存储器1430用于存储指令，该处理器1410用于执行该存储器1430存储的指令，以控制该收发器1420接收信号或发送信号。
其中，该收发器1420用于：接收第一终端设备发送的切换信息，所述切换信息包括以下信息中的至少一种：所述第一终端设备确定的所述第一终端设备的第一切换方案、第二终端设备的第二切换方案和链路的测量结果，所述链路包括所述第一终端设备与所述第一网络设备之间的链路，以及所述第二终端设备与所述第一网络设备之间的链路；
该处理器1310用于：根据所述接收单元接收的所述切换信息，对所述 第一切换方案和/或所述第二切换方案进行确认。
可选地，该处理器1410可以调用存储器1430中存储的程序代码，执行图6所示的方法600中的网络设备的相应操作，为了简洁，在此不再赘述。
应理解，在本申请实施例中，该处理器1410可以是中央处理单元(Central Processing Unit，简称“CPU”)，该处理器1410还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器1430可以包括只读存储器和随机存取存储器，并向处理器1410提供指令和数据。存储器1430的一部分还可以包括非易失性随机存取存储器。例如，存储器1430还可以存储设备类型的信息。
在实现过程中，上述方法的各步骤可以通过处理器1410中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的定位方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器1410中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1430，处理器1410读取存储器1430中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
根据本申请实施例的网络设备1400可以对应于上述方法600中用于执行方法600的网络设备，以及根据本申请实施例的网络设备1100，且该网络设备1400中的各单元或模块分别用于执行上述方法600中网络设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图15是本申请实施例的系统芯片的一个示意性结构图。图15的系统芯片1500包括输入接口1501、输出接口1502、至少一个处理器1503、存储器1504，所述输入接口1501、输出接口1502、所述处理器1503以及存储器1504之间通过内部连接通路互相连接。所述处理器1503用于执行所述存储器1504中的代码。
可选地，当所述代码被执行时，所述处理器1503可以实现方法实施例中由终端设备执行的方法400。为了简洁，这里不再赘述。
可选地，当所述代码被执行时，所述处理器1503可以实现方法实施例 中由终端设备执行的方法500。为了简洁，这里不再赘述。
可选地，当所述代码被执行时，所述处理器1503可以实现方法实施例中由网络设备执行的方法600。为了简洁，这里不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，该单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
该作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例该方法的全部或部分步骤。而前述 的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称“ROM”)、随机存取存储器(Random Access Memory，简称“RAM”)、磁碟或者光盘等各种可以存储程序代码的介质。
以上，仅为本申请的具体实施方式，但本申请实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请适合私利的保护范围之内。因此，本申请实施例的保护范围应该以权利要求的保护范围为准。

Claims (60)

  1. 一种切换方法，其特征在于，所述方法包括：
    第一终端设备获取链路的测量结果，所述链路包括所述第一终端设备与第一网络设备之间的链路，以及所述第一网络设备与第二终端设备之间的链路；
    所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案。
  2. 根据权利要求1所述的方法，其特征在于，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备向所述第二终端设备发送切换命令，所述切换命令用于指示所述第二终端设备执行所述第二切换方案。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案，包括：
    所述第一终端设备根据所述第一终端设备和所述第二终端设备所处的状态，以及所述测量结果，确定所述第一切换方案和/或所述第二切换方案。
  5. 根据权利要求4所述的方法，其特征在于，若所述第一终端设备处于连接状态，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；
    若所述第一终端设备处于非激活状态或空闲状态，所述第一切换方案包括所述第一终端设备重选所述第二网络设备覆盖的小区作为待接入的小区，或者所述第一终端设备不进行小区重选；
    若所述第二终端设备处于连接状态，所述第二切换方案包括所述第二终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区或其他网络设备覆盖的小区，或者所述第二终端设备不进行小区切换；
    若所述第二终端设备处于非激活状态或空闲状态，所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述第一 终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案，包括：
    所述第一终端设备根据所述测量结果，确定所述第一终端设备与所述第二终端设备之间是否保持链路连接；
    所述第一终端设备根据所述第一终端设备与所述第二终端设备之间是否保持链路连接，确定所述第一切换方案和/或所述第二切换方案。
  7. 根据权利要求6所述的方法，其特征在于，若所述第一终端设备确定所述第一终端设备与所述第二终端设备之间保持链路连接，
    则所述第一终端设备执行所述第一切换方案且所述第二终端设备执行所述第二切换方案后，所述第一终端设备和所述第二终端设备位于相同网络设备覆盖的小区。
  8. 根据权利要求1至5中任一项所述的方法，其特征在于，若所述第一终端设备确定所述第一终端设备和所述第二终端设备之间不保持链路连接，所述方法还包括：
    所述第一终端设备向所述第二终端设备发送释放指示信息，所述释放指示信息用于指示所述第二终端设备释放与所述第一终端设备之间的链路连接。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，在所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案之前，所述方法还包括：
    所述第一终端设备获取所述第一终端设备与所述第二终端设备之间的关联信息，所述关联信息包括所述第一终端设备与所述第二终端设备之间的配对关系或连接关系；
    所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案，包括：
    所述第一终端设备根据所述关联信息和所述测量结果，确定所述第一切换方案和/或所述第二切换方案。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，若所述第一终端设备处于连接状态，所述方法还包括：
    所述第一终端设备向所述第一网络设备发送切换信息，所述切换信息包括以下信息中的至少一种：所述第一切换方案的信息、所述第二切换方案的 信息和所述测量结果。
  11. 根据权利要求1至10中任一项所述的方法，其特征在于，在所述第一终端设备根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案之前，所述方法还包括：
    所述第一终端设备接收所述第一网络设备发送的配置信息，所述配置信息用于指示所述第一终端设备优先发送所述第一终端设备待切换的小区的信息，所述待切换的小区使得所述第一终端设备与所述第二终端设备满足信号强度条件且位于同一网络设备覆盖的小区。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
  13. 根据权利要求1至12中任一项所述的方法，其特征在于，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
  14. 根据权利要求1至13中任一项所述的方法，其特征在于，所述第一终端设备获取链路的测量结果，包括：
    所述第一终端设备确定所述第一终端设备与所述第一网络设备之间的链路的测量结果，并接收所述第二终端设备发送的所述第一网络设备与所述第二终端设备之间的链路的测量结果。
  15. 根据权利要求14所述的方法，其特征在于，所述第一终端设备获取链路的测量结果，还包括：
    所述第一终端设备确定所述第一终端设备与第二终端设备之间的链路的测量结果；或者
    所述第一终端设备接收所述第二终端设备发送的所述第一终端设备与所述第二终端设备之间的链路的测量结果。
  16. 根据权利要求1至15中任一项所述的方法，其特征在于，所述第一终端设备获取链路的测量结果，包括：
    第一终端设备获取所述第二终端设备发送的承载在适配层或直连接口协议栈PC5中的链路的测量结果。
  17. 一种切换方法，其特征在于，所述方法包括：
    第二终端设备获取链路的测量结果，所述链路包括所述第二终端设备与 第一网络设备之间的链路的测量结果；
    所述第二终端设备向所述第一终端设备发送所述测量结果，所述测量结果用于所述第一终端设备确定所述第二终端设备的第二切换方案；
    所述第二终端设备接收所述第一终端设备发送的切换命令，并根据所述切换命令，执行所述第二切换方案。
  18. 根据权利要求17所述的方法，其特征在于，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
  19. 根据权利要求17或18所述的方法，其特征在于，若所述第一终端设备处于连接状态，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；
    若所述第一终端设备处于非激活状态或空闲状态，所述第一切换方案包括所述第一终端设备重选所述第二网络设备覆盖的小区作为待接入的小区，或者所述第一终端设备不进行小区重选；
    若所述第二终端设备处于连接状态，所述第二切换方案包括所述第二终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区或其他网络设备覆盖的小区，或者所述第二终端设备不进行小区切换；
    若所述第二终端设备处于非激活状态或空闲状态，所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
  20. 根据权利要求17至19中任一项所述的方法，其特征在于，若所述第一终端设备确定所述第一终端设备与所述第二终端设备之间保持链路连接，
    则所述第二终端设备执行所述第二切换方案后，所述第二终端设备和所述第一终端设备位于相同网络设备覆盖的小区。
  21. 根据权利要求17至19中任一项所述的方法，其特征在于，若所述第一终端设备确定第一终端设备和所述第二终端设备之间不保持链路连接，所述方法还包括：
    所述第二终端设备接收所述第一终端设备发送的释放指示信息，并根据所述释放指示信息，释放与所述第一终端设备之间的链路连接。
  22. 根据权利要求17至21中任一项所述的方法，其特征在于，所述第 一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
  23. 根据权利要求17至22中任一项所述的方法，其特征在于，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
  24. 根据权利要求17至23中任一项所述的方法，其特征在于，所述第二终端设备向所述第一终端设备发送所述测量结果，包括：
    所述第二终端设备向所述第一终端设备发送承载在适配层或直连接口协议栈PC5中的所述测量结果。
  25. 一种切换方法，其特征在于，所述方法包括：
    第一网络设备接收第一终端设备发送的切换信息，所述切换信息包括以下信息中的至少一种：所述第一终端设备确定的所述第一终端设备的第一切换方案、第二终端设备的第二切换方案和链路的测量结果，所述链路包括所述第一终端设备与所述第一网络设备之间的链路，以及所述第二终端设备与所述第一网络设备之间的链路；
    所述第一网络设备根据所述切换信息，对所述第一切换方案和/或所述第二切换方案进行确认。
  26. 根据权利要求25所述的方法，其特征在于，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
  27. 根据权利要求25或26所述的方法，其特征在于，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；
    所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
  28. 根据权利要求25至27中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备向所述终端设备发送配置信息，所述配置信息用于指示所述第一终端设备优先发送所述第一终端设备待切换的小区的信息，所述待切换的小区使得所述第一终端设备与所述第二终端设备满足信号强度条件且位于同一网络设备覆盖的小区。
  29. 根据权利要求25至28中任一项所述的方法，其特征在于，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
  30. 根据权利要求25至29中任一项所述的方法，其特征在于，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
  31. 一种终端设备，其特征在于，所述终端设备为第一终端设备，所述第一终端设备包括：
    获取单元，用于获取链路的测量结果，所述链路包括所述第一终端设备与第一网络设备之间的链路，以及所述第一网络设备与第二终端设备之间的链路；
    确定单元，用于根据所述获取单元获取的所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案。
  32. 根据权利要求31所述的终端设备，其特征在于，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
  33. 根据权利要求31或32所述的终端设备，其特征在于，所述第一终端设备还包括发送单元，用于：
    向所述第二终端设备发送切换命令，所述切换命令用于指示所述第二终端设备执行所述第二切换方案。
  34. 根据权利要求31至33中任一项所述的终端设备，其特征在于，所述确定单元具体用于：
    根据所述第一终端设备和所述第二终端设备所处的状态，以及所述测量结果，确定所述第一切换方案和/或所述第二切换方案。
  35. 根据权利要求34所述的终端设备，其特征在于，若所述第一终端设备处于连接状态，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；
    若所述第一终端设备处于非激活状态或空闲状态，所述第一切换方案包括所述第一终端设备重选所述第二网络设备覆盖的小区作为待接入的小区，或者所述第一终端设备不进行小区重选；
    若所述第二终端设备处于连接状态，所述第二切换方案包括所述第二终 端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区或其他网络设备覆盖的小区，或者所述第二终端设备不进行小区切换；
    若所述第二终端设备处于非激活状态或空闲状态，所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
  36. 根据权利要求31至35中任一项所述的终端设备，其特征在于，所述确定单元具体用于：
    根据所述测量结果，确定所述第一终端设备与所述第二终端设备之间是否保持链路连接；
    根据所述第一终端设备与所述第二终端设备之间是否保持链路连接，确定所述第一切换方案和/或所述第二切换方案。
  37. 根据权利要求36所述的终端设备，其特征在于，若所述第一终端设备确定所述第一终端设备与所述第二终端设备之间保持链路连接，
    则所述第一终端设备执行所述第一切换方案且所述第二终端设备执行所述第二切换方案后，所述第一终端设备和所述第二终端设备位于相同网络设备覆盖的小区。
  38. 根据权利要求31至35中任一项所述的终端设备，其特征在于，若所述第一终端设备确定所述第一终端设备和所述第二终端设备之间不保持链路连接，所述发送单元还用于：
    向所述第二终端设备发送释放指示信息，所述释放指示信息用于指示所述第二终端设备释放与所述第一终端设备之间的链路连接。
  39. 根据权利要求31至38中任一项所述的终端设备，其特征在于，所述获取单元具体用于：
    在所述确定单元根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案之前，获取所述第一终端设备与所述第二终端设备之间的关联信息，所述关联信息包括所述第一终端设备与所述第二终端设备之间的配对关系或连接关系；
    所述确定单元具体用于：
    根据所述关联信息和所述测量结果，确定所述第一切换方案和/或所述第二切换方案。
  40. 根据权利要求31至39中任一项所述的终端设备，其特征在于，若 所述第一终端设备处于连接状态，所述发送单元还用于：
    向所述第一网络设备发送切换信息，所述切换信息包括以下信息中的至少一种：所述第一切换方案的信息、所述第二切换方案的信息和所述测量结果。
  41. 根据权利要求31至40中任一项所述的终端设备，其特征在于，所述第一终端设备还包括接收单元，用于：
    在所述确定单元根据所述测量结果，确定所述第一终端设备的第一切换方案和/或所述第二终端设备的第二切换方案之前，接收所述第一网络设备发送的配置信息，所述配置信息用于指示所述第一终端设备优先发送所述第一终端设备待切换的小区的信息，所述待切换的小区使得所述第一终端设备与所述第二终端设备满足信号强度条件且位于同一网络设备覆盖的小区。
  42. 根据权利要求31至41中任一项所述的终端设备，其特征在于，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
  43. 根据权利要求31至42中任一项所述的终端设备，其特征在于，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
  44. 根据权利要求31至43中任一项所述的终端设备，其特征在于，所述获取单元具体用于：
    确定所述第一终端设备与所述第一网络设备之间的链路的测量结果，并接收所述第二终端设备发送的所述第一网络设备与所述第二终端设备之间的链路的测量结果。
  45. 根据权利要求44所述的终端设备，其特征在于，所述获取单元具体用于：
    所述第一终端设备确定所述第一终端设备与第二终端设备之间的链路的测量结果；或者
    所述第一终端设备接收所述第二终端设备发送的所述第一终端设备与所述第二终端设备之间的链路的测量结果。
  46. 根据权利要求31至45中任一项所述的终端设备，其特征在于，所述获取单元具体用于：
    第一终端设备获取所述第二终端设备发送的承载在适配层或直连接口 协议栈PC5中的链路的测量结果。
  47. 一种终端设备，其特征在于，所述终端设备为第二终端设备，所述第二终端设备包括：
    获取单元，用于获取链路的测量结果，所述链路包括所述第二终端设备与第一网络设备之间的链路的测量结果；
    发送单元，用于向所述第一终端设备发送所述获取单元获取的所述测量结果，所述测量结果用于所述第一终端设备确定所述第二终端设备的第二切换方案；
    处理单元，用于接收所述第一终端设备发送的切换命令，并根据所述切换命令，执行所述第二切换方案。
  48. 根据权利要求47所述的终端设备，其特征在于，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
  49. 根据权利要求47或48所述的终端设备，其特征在于，若所述第一终端设备处于连接状态，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；
    若所述第一终端设备处于非激活状态或空闲状态，所述第一切换方案包括所述第一终端设备重选所述第二网络设备覆盖的小区作为待接入的小区，或者所述第一终端设备不进行小区重选；
    若所述第二终端设备处于连接状态，所述第二切换方案包括所述第二终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区或其他网络设备覆盖的小区，或者所述第二终端设备不进行小区切换；
    若所述第二终端设备处于非激活状态或空闲状态，所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
  50. 根据权利要求47至49中任一项所述的终端设备，其特征在于，若所述第一终端设备确定所述第一终端设备与所述第二终端设备之间保持链路连接，
    则所述第二终端设备执行所述第二切换方案后，所述第二终端设备和所述第一终端设备位于相同网络设备覆盖的小区。
  51. 根据权利要求47至49中任一项所述的终端设备，其特征在于，若 所述第一终端设备确定第一终端设备和所述第二终端设备之间不保持链路连接，所述处理单元还用于：
    接收所述第一终端设备发送的释放指示信息，并根据所述释放指示信息，释放与所述第一终端设备之间的链路连接。
  52. 根据权利要求47至51中任一项所述的终端设备，其特征在于，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
  53. 根据权利要求47至52中任一项所述的终端设备，其特征在于，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
  54. 根据权利要求47至53中任一项所述的终端设备，其特征在于，所述发送单元具体用于：
    向所述第一终端设备发送承载在适配层或直连接口协议栈PC5中的所述测量结果。
  55. 一种网络设备，其特征在于，所述网络设备为第一网络设备，所述第一网络设备包括：
    接收单元，用于接收第一终端设备发送的切换信息，所述切换信息包括以下信息中的至少一种：所述第一终端设备确定的所述第一终端设备的第一切换方案、第二终端设备的第二切换方案和链路的测量结果，所述链路包括所述第一终端设备与所述第一网络设备之间的链路，以及所述第二终端设备与所述第一网络设备之间的链路；
    处理单元，用于根据所述接收单元接收的所述切换信息，对所述第一切换方案和/或所述第二切换方案进行确认。
  56. 根据权利要求55所述的网络设备，其特征在于，所述链路还包括所述第一终端设备与所述第二终端设备之间的链路。
  57. 根据权利要求55或56所述的网络设备，其特征在于，所述第一切换方案包括所述第一终端设备由所述第一网络设备覆盖的小区切换至所述第二网络设备覆盖的小区，或者所述第一终端设备不进行小区切换；
    所述第二切换方案包括所述第二终端设备重选所述第二网络设备覆盖的小区或其他网络设备覆盖的小区作为待接入的小区，或者所述第二终端设备不进行小区重选。
  58. 根据权利要求55至57中任一项所述的网络设备，其特征在于，所述第一网络设备还包括发送单元，用于：
    向所述终端设备发送配置信息，所述配置信息用于指示所述第一终端设备优先发送所述第一终端设备待切换的小区的信息，所述待切换的小区使得所述第一终端设备与所述第二终端设备满足信号强度条件且位于同一网络设备覆盖的小区。
  59. 根据权利要求55至58中任一项所述的网络设备，其特征在于，所述链路的测量结果包括所述链路的链路质量的测量结果，和/或所述链路的链路状态的测量结果。
  60. 根据权利要求55至59中任一项所述的网络设备，其特征在于，所述第一终端设备为中继终端设备，所述第二终端设备为远端终端设备；或者所述第一终端设备为远端终端设备，所述第二终端设备为中继终端设备。
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