WO2019148396A1 - 数据传输方法、切换方法及相关设备 - Google Patents

数据传输方法、切换方法及相关设备 Download PDF

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Publication number
WO2019148396A1
WO2019148396A1 PCT/CN2018/074830 CN2018074830W WO2019148396A1 WO 2019148396 A1 WO2019148396 A1 WO 2019148396A1 CN 2018074830 W CN2018074830 W CN 2018074830W WO 2019148396 A1 WO2019148396 A1 WO 2019148396A1
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WO
WIPO (PCT)
Prior art keywords
network device
user equipment
tdm mode
handover
configuration information
Prior art date
Application number
PCT/CN2018/074830
Other languages
English (en)
French (fr)
Inventor
刘建华
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 AU2018405898A priority Critical patent/AU2018405898A1/en
Priority to JP2020541741A priority patent/JP2021516882A/ja
Priority to EP18904470.4A priority patent/EP3742808A4/en
Priority to KR1020207024858A priority patent/KR20200111788A/ko
Priority to CN201880087508.6A priority patent/CN111656818A/zh
Priority to PCT/CN2018/074830 priority patent/WO2019148396A1/zh
Publication of WO2019148396A1 publication Critical patent/WO2019148396A1/zh
Priority to US16/938,157 priority patent/US20200359277A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/02—Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
    • H04W36/023—Buffering or recovering information during reselection
    • 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
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • 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
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a data transmission method, a handover method, and related devices.
  • the user equipment When the network signal changes, the user equipment (User Equipment, UE) switches. For example, switching from Long Term Evolution (LTE) to Wideband Code Division Multiple Access (WCDMA), switching from WCDMA to Global System for Mobile (GSM), and switching from GSM to WCDMA. Switch from WCDMA to LTE. Or when the UE moves from one cell (Cell Group, CG) to another cell, the UE also performs handover. For example, switching from the currently accessed cell to another cell.
  • LTE Long Term Evolution
  • WCDMA Wideband Code Division Multiple Access
  • GSM Global System for Mobile
  • the handover process mainly includes three processes: a handover preparation process, a handover execution process, and a handover completion process.
  • the UE side has a connection interruption with the network side, which causes data interruption on the UE side and the network side.
  • the embodiment of the present application provides a data transmission method, a switching method, and related devices, which are used to shorten the duration of data interruption.
  • an embodiment of the present application provides a data transmission method, including:
  • a handover instruction from the first network device, where the handover instruction carries configuration information of a TDM mode negotiated by the first network device and the second network device, where configuration information of the TDM mode is used by the user equipment TDM mode;
  • the user equipment performs data transmission with the first network device or the second network device in the TDM mode.
  • an embodiment of the present application provides a handover method, including:
  • the second network device receives a handover request from the first network device, where the handover request carries a radio frequency transceiver capability of the user equipment;
  • the second network device Transmitting, by the second network device, a handover confirmation response to the first network device, where the handover confirmation response carries configuration information of the TDM mode, where the handover confirmation response is used by the first network device Transmitting the configuration information of the TDM mode to the user equipment, where the configuration information of the TDM mode is used by the user equipment to use a TDM mode, where the TDM mode is used by the user equipment and the first network device
  • the second network device remains connected.
  • an embodiment of the present application provides a handover method, including:
  • the first network device sends a handover request to the second network device, where the handover request carries the radio frequency transceiver capability of the user equipment;
  • the first network device sends a handover instruction to the user equipment, where the handover instruction carries configuration information of the TDM mode, and the configuration information of the TDM mode is used by the user equipment to use a TDM mode, where the TDM mode is used for
  • the user equipment remains connected to the first network device and the second network device.
  • an embodiment of the present application provides a user equipment, including a communication unit and a processing unit, where:
  • the processing unit is configured to receive, by the communication unit, a handover instruction from a first network device, where the handover instruction carries configuration information of a TDM mode negotiated by the first network device and a second network device, where the TDM mode is Configuration information is used by the user equipment to use a TDM mode;
  • the processing unit is further configured to perform data transmission with the first network device or the second network device in the TDM mode.
  • the embodiment of the present application provides a network device, which is applied to a communication system including a first network device, a second network device, and a user equipment, where the network device is the second network device, including a communication unit and processing. Unit, where:
  • the processing unit is configured to receive, by using the communications unit, a handover request from a first network device, where the handover request carries a radio frequency transceiver capability of the user equipment;
  • the processing unit is further configured to determine configuration information of the TDM mode according to the radio frequency transceiver capability
  • the processing unit is further configured to send, by using the communication unit, a handover confirmation response to the first network device, where the handover confirmation response carries configuration information of the TDM mode, where the handover confirmation response is And sending, by the first network device, configuration information of the TDM mode to the user equipment, where configuration information of the TDM mode is used by the user equipment to use a TDM mode, where the TDM mode is used by the user equipment and The first network device and the second network device remain connected.
  • the embodiment of the present application provides a network device, which is applied to a communication system including a first network device, a second network device, and a user equipment, where the network device is the first network device, including a communication unit, and processing Unit, where:
  • the processing unit is configured to send, by using the communications unit, a handover request to the second network device, where the handover request carries a radio frequency transceiver capability of the user equipment;
  • the processing unit is further configured to receive, by the communication unit, a handover confirmation response from the second network device, where the handover confirmation response carries a configuration of the TDM mode determined by the second network device according to the radio frequency transceiver capability information;
  • the processing unit is further configured to send, by using the communication unit, a handover instruction to the user equipment, where the handover instruction carries configuration information of the TDM mode, where configuration information of the TDM mode is used by the user equipment to use TDM.
  • a mode the TDM mode is used by the user equipment to maintain a connection with the first network device and the second network device.
  • an embodiment of the present application provides a user equipment, including one or more processors, one or more memories, one or more transceivers, and one or more programs, where the one or more programs are Stored in the memory and configured to be executed by the one or more processors, the program comprising instructions for performing the steps in the method of the first aspect.
  • an embodiment of the present application provides a network device, including one or more processors, one or more memories, one or more transceivers, and one or more programs, where the one or more programs are Stored in the memory and configured to be executed by the one or more processors, the program comprising instructions for performing the steps in the method of the second aspect.
  • an embodiment of the present application provides a network device, including one or more processors, one or more memories, one or more transceivers, and one or more programs, where the one or more programs are Stored in the memory and configured to be executed by the one or more processors, the program comprising instructions for performing the steps in the method of the third aspect.
  • embodiments of the present application provide a computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the portion described by the method of the first aspect or All steps.
  • embodiments of the present application provide a computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the portion described by the method of the second aspect Or all steps.
  • the embodiment of the present application provides a computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the portion described by the method of the third aspect Or all steps.
  • the embodiment of the present application provides a computer program product, comprising: a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform the first aspect Some or all of the steps described in the described method.
  • the computer program product can be a software installation package.
  • the embodiment of the present application provides a computer program product, comprising: a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform the second aspect Some or all of the steps described in the described method.
  • the computer program product can be a software installation package.
  • the embodiment of the present application provides a computer program product, comprising: a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform the third aspect Some or all of the steps described in the described method.
  • the computer program product can be a software installation package.
  • the first network device and the second network device negotiate to configure configuration information of the TDM mode to the user equipment, because the configuration information of the TDM mode is used for the user equipment to use the TDM mode, and the TDM mode is used for the user equipment and the first network.
  • the device and the second network device remain connected, so that after the user equipment receives the switching instruction from the first network device, the user equipment can still perform data transmission with the first network device or the second network device, thereby avoiding data caused by the handover.
  • the problem of interruption which in turn shortens the length of data interruption.
  • FIG. 1A is a schematic structural diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 1B is a schematic diagram of a current handover procedure under LTE according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a user equipment according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a data transmission 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 another switching method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a handover procedure according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a computer device according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of another computer device according to an embodiment of the present application.
  • FIG. 1A shows a wireless communication system to which the present application relates.
  • the wireless communication system is not limited to the LTE system, and may be a fifth-generation mobile communication (5th Generation, 5G) system, a new radio (NR) system, and a machine to machine communication (Machine to Machine, M2M). ) System, etc.
  • 5G fifth-generation mobile communication
  • NR new radio
  • M2M Machine to Machine
  • the wireless communication system 100 can include a user equipment 101, a first network device 102, a second network device 103, and a core network 104. among them:
  • the first network device 102 and the second network device 103 may be base stations, which may be used to communicate with the user equipment 101, and may also be used to communicate with the core network 104.
  • the base station may be a Base Transceiver Station (BTS) in a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, or may be an evolved base station in an LTE system (Evolutional Node B). , eNB), and base stations in 5G systems, new air interface (NR) systems.
  • the base station may also be an Access Point (AP), a TransNode (Trans TRP), a Central Unit (CU), or other network entity, and may include some or all of the functions of the above network entities. .
  • User equipment 101 may be stationary or mobile in wireless communication system 100.
  • user device 101 may be a mobile device, a mobile station, a mobile unit, an M2M terminal, a wireless unit, a remote unit, a user agent, a mobile client, and the like.
  • the network device can be used to communicate with the user device 101 over the wireless interface 105 under the control of a network device controller (not shown).
  • the network device controller can be part of a core network or can be integrated into a network device.
  • Between the first network device 102 and the second network device 103, the first network device 102 and the core network 104, and the second network device 103 and the core network 104 may be directly connected via a blackhaul interface 106 (such as an X2 interface) or Inter-ground, communicate with each other.
  • a blackhaul interface 106 such as an X2 interface
  • Inter-ground Inter-ground
  • FIG. 1B shows an existing handover procedure under LTE.
  • the handover request to handover acknowledgment response is a handover preparation procedure
  • RRC reconfiguration to RRC reconfiguration completion is a handover execution procedure
  • the path handover request to source resource release is a handover completion procedure.
  • the uplink and downlink of the user equipment and the network device are in an interrupted state during the handover, and the user equipment cannot send uplink data to the network device, and cannot receive downlink data sent by the network device, thereby causing the user equipment. Data interruption with network devices.
  • the first network device 102 may be the source base station, and the second network device 103 may be the target base station.
  • the first network device 102 and the second network device 103 negotiate to configure the configuration information of the TDM mode to the user equipment 101.
  • the configuration information of the TDM mode is used for the user equipment 101 to use the TDM mode, and the TDM mode is used for the user equipment 101 and
  • the first network device 102 and the second network device 103 remain connected, such that the user device 101 can still be associated with the first network device 102 or the second network device after receiving the switching instruction from the first network device 102. 103 for data transmission, avoiding the problem of data interruption caused by switching, thereby shortening the length of data interruption.
  • the wireless communication system 100 shown in FIG. 1A is only for the purpose of more clearly explaining the technical solutions of the present application, and does not constitute a limitation of the present application. Those skilled in the art may know that with the evolution of the network architecture and new services. The appearance of the scenario, the technical solution provided by the present application is equally applicable to similar technical problems.
  • user equipment 200 can include: one or more user equipment processors 201, memory 202, communication interface 203, receiver 205, transmitter 206, coupler 207, antenna 208, user interface 202, and inputs.
  • the output module (including the audio input and output module 210, the key input module 211, the display 212, and the like). These components can be connected by bus 204 or other means, and FIG. 2 is exemplified by a bus connection. among them:
  • Communication interface 203 can be used for user equipment 200 to communicate with other communication devices, such as network devices.
  • the network device may be the network device 300 shown in FIG. 3.
  • the communication interface 203 may be a Long Term Evolution (LTE) (4G) communication interface, or may be a 5G or a future communication interface of a new air interface.
  • LTE Long Term Evolution
  • 5G Fifth Generation
  • the user equipment 200 may also be configured with a wired communication interface 203, such as a Local Access Network (LAN) interface.
  • LAN Local Access Network
  • Transmitter 206 can be used to perform transmission processing, such as signal modulation, on signals output by user equipment processor 201.
  • Receiver 205 can be used to perform reception processing, such as signal demodulation, on the mobile communication signals received by antenna 208.
  • transmitter 206 and receiver 205 can be viewed as a wireless modem. In the user equipment 200, the number of the transmitter 206 and the receiver 205 may each be one or more.
  • the antenna 208 can be used to convert electromagnetic energy in a transmission line into electromagnetic waves in free space or to convert electromagnetic waves in free space into electromagnetic energy in a transmission line.
  • the coupler 207 is configured to divide the mobile communication signal received by the antenna 308 into multiple channels and distribute it to a plurality of receivers 205.
  • the user equipment 200 may also include other communication components such as a GPS module, a Bluetooth module, a Wireless Fidelity (Wi-Fi) module, and the like. Without being limited to the wireless communication signals described above, the user equipment 200 may also support other wireless communication signals, such as satellite signals, short wave signals, and the like. Not limited to wireless communication, the user equipment 200 may also be configured with a wired network interface (such as a LAN interface) to support wired communication.
  • a wired network interface such as a LAN interface
  • the input and output module can be used to implement interaction between the household device 200 and the user/external environment, and can mainly include an audio input and output module 210, a key input module 211, a display 212, and the like. Specifically, the input and output module may further include: a camera, a touch screen, a sensor, and the like. The input and output modules communicate with the user equipment processor 201 through the user interface 209.
  • Memory 202 is coupled to terminal processor 201 for storing various software programs and/or sets of instructions.
  • memory 202 can include high speed random access memory, and can also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state storage devices.
  • the memory 202 can store an operating system (hereinafter referred to as a system) such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • the memory 202 can also store a network communication program that can be used to communicate with one or more additional devices, one or more user devices, one or more network devices.
  • the memory 202 can also store a user interface program, which can realistically display the content of the application through a graphical operation interface, and receive user control operations on the application through input controls such as menus, dialog boxes, and keys. .
  • the memory 202 may be used to store a data transmission method provided by one or more embodiments of the present application, and an implementation procedure of the handover method on the user equipment 200 side.
  • a data transmission method provided by one or more embodiments of the present application
  • an implementation procedure of the handover method on the user equipment 200 side please refer to the following method embodiments.
  • user device processor 201 is operable to read and execute computer readable instructions.
  • the user equipment processor 201 can be used to invoke a program stored in the memory 212, such as a data transmission method provided by one or more embodiments of the present application, an implementation program of the handover method on the user equipment 200 side, and execute the program. Contained instructions.
  • the user equipment 200 shown in FIG. 2 is only one implementation of the embodiment of the present application. In an actual application, the user equipment 200 may further include more or fewer components, which are not limited herein.
  • FIG. 3 illustrates a network device 300 provided by some embodiments of the present application.
  • network device 300 can include one or more network device processors 301, memory 302, communication interface 303, transmitter 305, receiver 306, coupler 307, and antenna 308. These components can be connected via bus 304 or other types, and FIG. 4 is exemplified by a bus connection. among them:
  • Communication interface 303 can be used by network device 300 to communicate with other communication devices, such as user devices or other network devices.
  • the user equipment may be the user equipment 200 shown in FIG. 2.
  • the communication interface 303 may be a Long Term Evolution (LTE) (4G) communication interface, or may be a 5G or a future communication interface of a new air interface.
  • LTE Long Term Evolution
  • the network device 300 may also be configured with a wired communication interface 303 to support wired communication.
  • the backhaul link between one network device 300 and other network devices 300 may be a wired communication connection.
  • Transmitter 305 can be used to perform transmission processing, such as signal modulation, on signals output by network device processor 301.
  • Receiver 306 can be used to perform reception processing on the mobile communication signals received by antenna 308. For example, signal demodulation.
  • transmitter 305 and receiver 306 can be viewed as a wireless modem. In the network device 300, the number of the transmitter 305 and the receiver 306 may each be one or more.
  • the antenna 308 can be used to convert electromagnetic energy in a transmission line into electromagnetic waves in free space, or to convert electromagnetic waves in free space into electromagnetic energy in a transmission line.
  • Coupler 307 can be used to divide the mobile pass signal into multiple channels and distribute it to multiple receivers 306.
  • Memory 302 is coupled to network device processor 301 for storing various software programs and/or sets of instructions.
  • memory 302 may include high speed random access memory and may also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state storage devices.
  • the memory 302 can store an operating system (hereinafter referred to as a system) such as an embedded operating system such as uCOS, VxWorks, or RTLinux.
  • the memory 402 can also store a network communication program that can be used to communicate with one or more additional devices, one or more terminal devices, one or more network devices.
  • the network device processor 301 can be used to perform wireless channel management, implement call and communication link establishment and teardown, and provide cell handover control and the like for users in the control area.
  • the network device processor 301 may include: an Administration Module/Communication Module (AM/CM) (a center for voice exchange and information exchange), and a Basic Module (BM). Complete call processing, signaling processing, radio resource management, radio link management and circuit maintenance functions, Transcoder and SubMultiplexer (TCSM) (for multiplexing demultiplexing and code conversion) Function) and so on.
  • AM/CM Administration Module/Communication Module
  • BM Basic Module
  • TCSM Transcoder and SubMultiplexer
  • the memory 302 can be used to store the data transmission method provided by one or more embodiments of the present application, and the implementation procedure of the handover method on the network device 300 side.
  • the implementation of the data transmission method and the handover method provided by one or more embodiments of the present application please refer to the following method embodiments.
  • the network device processor 301 can be used to read and execute computer readable instructions. Specifically, the network device processor 301 can be used to invoke a program stored in the memory 302, such as a data transmission method provided by one or more embodiments of the present application, an implementation program of the handover method on the network device 300 side, and execute the program. Contained instructions.
  • the network device 300 shown in FIG. 3 is only one implementation of the embodiment of the present application. In actual applications, the network device 300 may further include more or fewer components, which are not limited herein.
  • the embodiment of the present application provides a data transmission method and a handover method.
  • FIG. 4 is a schematic flowchart of a data transmission method according to an embodiment of the present application, including the following steps:
  • Step 401 The user equipment receives a handover instruction from the first network device, where the handover instruction carries configuration information of a Time-division Multiplexing (TDM) mode negotiated by the first network device and the second network device, and the configuration of the TDM mode The information is used by the user equipment to use the TDM mode.
  • TDM Time-division Multiplexing
  • the first network device may be a source base station, and the second network device may be a target base station.
  • the handover command may be a Radio Resource Control (RRC) reconfiguration command sent by the first network device to the user equipment in the handover process.
  • RRC Radio Resource Control
  • the TDM mode is used by the user equipment to maintain a connection with the first network device and the second network device.
  • the user equipment can perform data transmission with different network devices (ie, the first network device or the second network device) in different time slots, so the user equipment can maintain the first network device and the second network device. Connected. If there is no TDM mode, the user equipment can only be configured to connect with the first network device or the second network device.
  • the configuration information of the TDM mode may be represented by at least one bit. For example, if the user equipment supports only one TDM mode, the configuration information of the TDM mode may be represented by one bit. For example, 1 indicates that the user equipment uses the TDM mode, and 0 indicates that the user equipment does not use the TDM mode. For another example, the user equipment supports only four TDM modes, and the configuration information of the TDM mode can be represented by using two bits. For example, the four TDM modes include TDM mode 1, TDM mode 2, TDM mode 3, and TDM mode 4, 00. Indicates that the user equipment uses TDM mode 1, 01 indicates that the user equipment uses TDM mode 2, and 10 indicates that the user equipment uses TDM mode 3, 11 to indicate that the user equipment uses TDM mode 4.
  • Step 402 The user equipment performs data transmission with the first network device or the second network device in the TDM mode.
  • the user equipment after receiving the handover instruction, performs the TDM mode based on the TDM mode configuration information, that is, the user equipment enters the dual-receive single-issue mode.
  • the user equipment configured in the TDM mode can use the uplink connection of the first network device and the second network device during the handover process.
  • the first network device and the second network device negotiate to configure configuration information of the TDM mode to the user equipment, because the configuration information of the TDM mode is used for the user equipment to use the TDM mode, and the TDM mode is used for the user equipment and the first network.
  • the device and the second network device remain connected, so that after the user equipment receives the switching instruction from the first network device, the user equipment can still perform data transmission with the first network device or the second network device, thereby avoiding data caused by the handover.
  • the problem of interruption which in turn shortens the length of data interruption.
  • the specific implementation manner in which the user equipment performs data transmission with the first network device or the second network device in the TDM mode is:
  • the user equipment If the uplink authorization configured by the Physical Downlink Control Channel (PDCCH) is not monitored, or the pre-configured uplink authorization is not provided in the foregoing handover command, the user equipment is in the TDM mode and the first network. The device performs data transmission.
  • PDCCH Physical Downlink Control Channel
  • the user equipment if the user equipment does not detect the uplink authorization of the PDCCH configuration, or the first network device does not provide the pre-configured uplink authorization in the handover instruction sent by the user equipment, the user equipment does not have the link of the second network device. Upstream authorization, in which case the user equipment cannot perform data transmission with the second network device, so in this case, the user equipment can only perform data transmission with the first network device.
  • the specific implementation manner in which the user equipment performs data transmission with the first network device or the second network device in the TDM mode is:
  • the user equipment determines to perform data transmission with the target network device in the TDM mode according to the link attribute information, where the target network device The first network device or the second network device is included.
  • the user equipment monitors the uplink authorization of the PDCCH configuration, or the first network device provides the pre-configured uplink authorization in the handover command sent by the user equipment, the user equipment has the uplink authorization of the link where the second network device is located. In this case, the user equipment can perform data transmission with the second network device and data transmission with the first network device. Therefore, in this case, the user equipment can follow the link of the two links.
  • the attribute information determines whether to perform data transmission with the first network device or data transmission with the second network device.
  • the link attribute information includes link quality
  • the user equipment determines, according to the link attribute information, that the data transmission is performed with the target network device in the TDM mode, where the target network device includes the first network device or the
  • the specific implementation methods of the two network devices are as follows:
  • the user equipment determines to perform data with the first network device in the TDM mode, where the link quality of the link where the first network device is located is higher than the link quality of the link where the second network device is located. transmission;
  • the user equipment determines to perform data with the second network device in the TDM mode, where the link quality of the link where the second network device is located is higher than the link quality of the link where the first network device is located. transmission.
  • the user equipment selects a link with better network quality for data transmission, thereby improving data transmission. Timeliness.
  • FIG. 5 is a schematic flowchart of a handover method according to an embodiment of the present application, including the following steps:
  • Step 501 The second network device receives a handover request from the first network device, where the handover request carries a radio frequency transceiver capability of the user equipment.
  • the first network device may be a source base station, and the second network device may be a target base station.
  • the radio frequency transceiver capability of the user equipment refers to the dual-receiving capability of the user equipment.
  • the first network device sends the radio frequency transceiver capability of the user equipment to the second network device to notify the second network device user equipment to support the TDM mode, or to notify the second network device user equipment which TDM modes are supported.
  • Step 502 The second network device determines configuration information of the TDM mode according to the radio frequency transceiver capability.
  • the second network device first determines whether the user equipment supports the TDM mode according to the radio frequency transceiver capability. If supported, the second network device determines which TDM modes are supported according to the radio frequency transceiver capability. If the user equipment supports only one TDM mode, the second network device determines configuration information of the TDM mode based on the one TDM mode. If the user equipment supports only a plurality of TDM modes, then one TDM mode is first selected, and then the configuration information of the TDM mode is determined based on the selected TDM mode.
  • the configuration information of the TDM mode may be represented by at least one bit. For example, if the user equipment supports only one TDM mode, the configuration information of the TDM mode may be represented by one bit. For example, 1 indicates that the user equipment uses the TDM mode, and 0 indicates that the user equipment does not use the TDM mode. For another example, the user equipment supports only four TDM modes, and the configuration information of the TDM mode can be represented by using two bits. For example, the four TDM modes include TDM mode 1, TDM mode 2, TDM mode 3, and TDM mode 4, 00. Indicates that the user equipment uses TDM mode 1, 01 indicates that the user equipment uses TDM mode 2, and 10 indicates that the user equipment uses TDM mode 3, 11 to indicate that the user equipment uses TDM mode 4.
  • Step 503 The second network device sends a handover confirmation response to the first network device for the handover request, where the handover confirmation response carries configuration information of the TDM mode, where the handover confirmation response is used by the first network device to the TDM mode.
  • the configuration information is sent to the user equipment, and the configuration information of the TDM mode is used by the user equipment to use the TDM mode, where the TDM mode is used for the user equipment to maintain a connection with the first network device and the second network device.
  • the first network device may send the configuration information of the TDM mode to the user equipment by using an RRC reconfiguration command.
  • the TDM mode is used by the user equipment to maintain a connection with the first network device and the second network device.
  • the first network device and the second network device negotiate to configure configuration information of the TDM mode to the user equipment, because the configuration information of the TDM mode is used for the user equipment to use the TDM mode, and the TDM mode is used for the user equipment and the first network.
  • the device and the second network device remain connected, so that after the user equipment receives the switching instruction from the first network device, the user equipment can still perform data transmission with the first network device or the second network device, thereby avoiding data caused by the handover.
  • the problem of interruption which in turn shortens the length of data interruption.
  • step 503 the method further includes:
  • the second network device is ready to receive uplink data from the user equipment.
  • the uplink connection of the first network device and the second network device can be used in the handover process. Therefore, after step 503, the second network device is ready to receive the uplink data of the user equipment. Can improve the timeliness of data transmission.
  • the method further includes:
  • the second network device receives uplink data from the user equipment
  • the second network device caches the uplink data if the second network device is not connected to the core network
  • the second network device forwards the uplink data to the core network.
  • the second network device may not establish a connection with the core network. Therefore, after receiving the uplink data from the user equipment, the second network device first determines whether the second network device determines whether the second network device is Connecting to the core network, the second network device determines whether the second network device is connected to the core network, where the second network device determines whether the second network device stores the Serving Gate Way (SGW) address information, if If yes, it means that the second network device is connected to the core network, otherwise the connection is not established.
  • SGW Serving Gate Way
  • the second network device when the second network device is not connected to the core network, the second network device first buffers the received uplink data, so that the uplink data is not lost.
  • the second network device When the second network device is connected to the core network, the second network device directly forwards the received uplink data to the core network, which improves the timeliness of data transmission.
  • the method further includes:
  • the second network device forwards the buffered uplink data to the core network.
  • the second network device when the second network device is connected to the core network, the second network device forwards the buffered uplink data to the core network in time, which improves the timeliness of data transmission.
  • FIG. 6 is a schematic flowchart of a handover method according to an embodiment of the present application, including the following steps:
  • Step 601 The first network device sends a handover request to the second network device, where the handover request carries the radio frequency transceiver capability of the user equipment.
  • the first network device may be a source base station, and the second network device may be a target base station.
  • the radio frequency transceiver capability of the user equipment refers to the dual-receiving capability of the user equipment.
  • the first network device sends the radio frequency transceiving capability of the user equipment to the second network device to notify the second network device user equipment to support the TDM mode, or to inform the second network device user equipment which TDM modes are supported, and the like.
  • Step 602 The first network device receives a handover confirmation response from the second network device, where the handover confirmation response carries configuration information of the TDM mode determined by the second network device according to the radio frequency transceiver capability.
  • Step 603 The first network device sends a handover instruction to the user equipment, where the handover instruction carries the configuration information of the TDM mode, where the configuration information of the TDM mode is used by the user equipment to use a TDM mode, where the TDM mode is used for The user equipment remains connected to the first network device and the second network device.
  • the switching instruction may be an RRC reconfiguration command sent by the first network device to the user equipment in the handover process.
  • the TDM mode is used by the user equipment to maintain a connection with the first network device and the second network device.
  • the configuration information of the TDM mode may be represented by at least one bit. For example, if the user equipment supports only one TDM mode, the configuration information of the TDM mode may be represented by one bit. For example, 1 indicates that the user equipment uses the TDM mode, and 0 indicates that the user equipment does not use the TDM mode. For another example, the user equipment supports only four TDM modes, and the configuration information of the TDM mode can be represented by using two bits. For example, the four TDM modes include TDM mode 1, TDM mode 2, TDM mode 3, and TDM mode 4, 00. Indicates that the user equipment uses TDM mode 1, 01 indicates that the user equipment uses TDM mode 2, and 10 indicates that the user equipment uses TDM mode 3, 11 to indicate that the user equipment uses TDM mode 4.
  • the first network device and the second network device negotiate to configure configuration information of the TDM mode to the user equipment, because the configuration information of the TDM mode is used for the user equipment to use the TDM mode, and the TDM mode is used for the user equipment and the first network.
  • the device and the second network device remain connected, so that after the user equipment receives the switching instruction from the first network device, the user equipment can still perform data transmission with the first network device or the second network device, thereby avoiding data caused by the handover.
  • the problem of interruption which in turn shortens the length of data interruption.
  • step 603 the method further includes:
  • the first network device receives uplink data from the user equipment
  • the first network device forwards the uplink data to a core network.
  • the first network device after the first network device receives the uplink data from the user equipment, the first network device needs to forward the uplink data to the second network device. In this embodiment, after the first network device receives the uplink data from the user equipment, the first network device directly forwards the uplink data to the core network, which improves the timeliness of data transmission.
  • step 603 the method further includes:
  • the downlink data sent by the first network device to the user equipment during the handover process is the downlink data sent by the first network device to the user equipment during the handover process.
  • the downlink of the first network device and the user equipment is interrupted during the handover process, and the downlink data of the user equipment and the network device is interrupted.
  • the first network device is connected to the downlink of the user equipment, which avoids the problem that the handover causes the downlink data to be interrupted.
  • FIG. 5 and FIG. 6 the embodiment of the present application provides a schematic diagram of a handover process, as shown in FIG. 7, including the following steps:
  • Step 701 The first network device sends a measurement configuration to the user equipment; the user equipment receives the measurement configuration from the first network device.
  • Step 702 The user equipment sends a measurement report to the first network device; the first network device receives the measurement report from the user equipment.
  • Step 703 The first network device sends a connection request to the second network device, and the second network device receives the connection request from the first network device.
  • Step 704 The second network device sends a connection confirmation response to the first network device for the connection request; the first network device receives a connection confirmation response from the second network device.
  • Step 705 The first network device sends a handover request to the second network device.
  • the second network device receives a handover request from the first network device, where the handover request carries the radio frequency transceiver capability of the user equipment.
  • Step 706 The second network device determines configuration information of the TDM mode according to the radio frequency transceiver capability of the user.
  • Step 707 The second network device sends a handover confirmation response to the first network device for the handover request.
  • the first network device receives a handover confirmation response from the second network device, where the handover confirmation response carries the configuration information of the TDM mode.
  • Step 708 The second network device is ready to receive uplink data from the user equipment.
  • Step 709 The first network device sends a handover instruction to the user equipment.
  • the user equipment receives a handover instruction from the first network device, where the handover instruction carries the configuration information of the TDM mode, where the configuration information of the TDM mode is used by the user equipment to use the TDM.
  • the TDM mode is used for the user equipment to remain connected to the first network device and the second network device.
  • Step 710 If the uplink authorization of the PDCCH configuration is not monitored, or the pre-configured uplink authorization is not provided in the handover instruction, or the uplink authorization of the PDCCH configuration is monitored, or the pre-configured uplink authorization is provided in the handover instruction. And the user equipment sends the uplink data to the first network device, where the link quality of the link where the first network device is located is higher than the link quality of the link where the second network device is located; the first network device receives the uplink data from the user equipment. Upstream data.
  • Step 711 The first network device forwards the uplink data to the core network, and the core network receives the uplink data from the first network device.
  • Step 712 The uplink authorization of the PDCCH configuration is monitored, or the pre-configured uplink authorization is provided in the handover instruction, and the link quality of the link where the second network device is located is higher than the link quality of the link where the first network device is located.
  • the user equipment sends uplink data to the second network device; the second network device receives uplink data from the user equipment.
  • Step 713 The second network device caches the uplink data if the second network device is not connected to the core network.
  • the second network device After the step 713, if the second network device is connected to the core network, the second network device forwards the cached uplink data to the core network in time.
  • Step 714 In the case that the second network device is connected to the core network, the second network device forwards the uplink data to the core network; and the core network receives the uplink data from the second network device.
  • Step 715 The user equipment sends a handover completion response to the second network device for the handover instruction, and the second network device receives the handover completion response from the user equipment.
  • Step 716 The second network device sends a path switch request to the core network; the core network receives the path switch request from the second network device.
  • Step 717 The core network sends a path switch confirmation response to the second network device for the path switch request.
  • the second network device receives the path switch confirmation response from the core network.
  • Step 718 The second network device sends a context release request of the user equipment to the first network device, where the first network device receives a context release request from the user equipment of the second network device.
  • Step 719 The first network device releases the context of the user equipment.
  • FIG. 8 is a computer device 800 according to an embodiment of the present disclosure.
  • the computer device 800 is applied to a communication system including a user equipment, a first network device, and a second network device.
  • the computer device 800 may be a user equipment.
  • the first network device may also be a second network device, and the computer device 800 includes: one or more processors, one or more memories, one or more transceivers, and one or more programs;
  • the one or more programs are stored in the memory and configured to be executed by the one or more processors.
  • the program when computer device 800 is a user device, the program includes instructions for performing the following steps:
  • the handover instruction carries configuration information of a TDM mode negotiated by the first network device and the second network device, where configuration information of the TDM mode is used by the user equipment to use a TDM mode ;
  • the program includes instructions specifically for performing the following steps:
  • the program includes instructions specifically for performing the following steps:
  • the uplink authorization of the PDCCH configuration is monitored, or the pre-configured uplink authorization is provided in the handover instruction, determining, according to the link attribute information, performing data transmission with the target network device in the TDM mode, where the target network The device includes the first network device or the second network device.
  • the program includes specific use Instructions for performing the following steps:
  • the program when computer device 800 is a second network device, the program includes instructions for performing the following steps:
  • a handover confirmation response carries configuration information of the TDM mode
  • the handover confirmation response is used by the first network device to be in the TDM mode.
  • the configuration information is sent to the user equipment, where the configuration information of the TDM mode is used by the user equipment to use a TDM mode, where the TDM mode is used for the user equipment to stay connected with the first network device and the second network device.
  • the program includes an instruction further for performing the following steps:
  • program includes instructions that are also used to perform the following steps:
  • the program includes instructions further for performing the following steps:
  • the program when computer device 800 is a first network device, the program includes instructions for performing the following steps:
  • the handover confirmation response carries configuration information of the TDM mode determined by the second network device according to the radio frequency transceiver capability
  • the handover instruction carries configuration information of the TDM mode, where configuration information of the TDM mode is used by the user equipment to use a TDM mode, where the TDM mode is used by the user equipment and the The first network device and the second network device remain connected.
  • the program includes instructions further for performing the following steps:
  • the program includes instructions further for performing the following steps:
  • FIG. 9 is a computer device 900 according to an embodiment of the present disclosure.
  • the computer device 900 is applied to a communication system including a user equipment, a first network device, and a second network device.
  • the computer device 900 may be a user equipment. It may also be a first network device or a second network device.
  • the user device 900 includes a processing unit 901, a communication unit 902, and a storage unit 903.
  • computer device 900 when computer device 900 is a user device,
  • the processing unit 901 is configured to receive, by using the communication unit 902, a handover instruction from the first network device, where the handover instruction carries configuration information of a TDM mode negotiated by the first network device and the second network device, where the TDM mode is configured. Information for the user equipment to use the TDM mode;
  • the processing unit 901 is further configured to perform data transmission with the first network device or the second network device in the TDM mode.
  • the processing unit 901 is specifically configured to:
  • the processing unit 901 is specifically configured to:
  • the uplink authorization of the PDCCH configuration is monitored, or the pre-configured uplink authorization is provided in the handover instruction, determining, according to the link attribute information, performing data transmission with the target network device in the TDM mode, where the target network The device includes the first network device or the second network device.
  • the processing unit 901 is specifically configured to use :
  • the computer device 900 when the computer device 900 is a second network device,
  • the processing unit 901 is configured to receive, by using the communication unit 902, a handover request from the first network device, where the handover request carries a radio frequency transceiver capability of the user equipment;
  • the processing unit 901 is further configured to determine configuration information of the TDM mode according to the radio frequency transceiver capability
  • the processing unit 901 is further configured to send, by using the communication unit 902, a handover confirmation response to the first network device, where the handover confirmation response carries configuration information of the TDM mode, where the handover confirmation response is used for
  • the first network device sends the configuration information of the TDM mode to the user equipment, where the TDM mode configuration information is used by the user equipment to use a TDM mode, and the TDM mode is used by the user equipment and the first The network device and the second network device remain connected.
  • the processing unit 901 is further configured to prepare to receive uplink data from the user equipment.
  • processing unit 901 is further configured to receive uplink data from the user equipment by using the communication unit 902 during the handover process;
  • the processing unit 901 is further configured to cache the uplink data if the second network device is not connected to the core network;
  • the processing unit 901 is further configured to forward the uplink data to the core network by using the communication unit 902 if the second network device is connected to the core network.
  • the processing unit 901 is further configured to: when the second network device is connected to the core network, forward the buffered uplink data to the core network by using the communication unit 902.
  • the computer device 900 when the computer device 900 is the first network device,
  • the processing unit 901 is configured to send, by using the communication unit 902, a handover request to the second network device, where the handover request carries a radio frequency transceiver capability of the user equipment;
  • the processing unit 901 is further configured to receive, by using the communication unit 902, a handover confirmation response from the second network device, where the handover confirmation response carries configuration information of the TDM mode determined by the second network device according to the radio frequency transceiver capability;
  • the processing unit 901 is further configured to send, by using the communication unit 902, a handover instruction, where the handover instruction carries configuration information of the TDM mode, where configuration information of the TDM mode is used by the user equipment to use a TDM mode,
  • the TDM mode is used by the user equipment to remain connected to the first network device and the second network device.
  • the processing unit 901 is further configured to receive, by the communication unit 902, uplink data from the user equipment during the handover process;
  • the processing unit 901 is further configured to forward the uplink data to the core network by using the communication unit 902.
  • the processing unit 901 is further configured to use the downlink data sent by the communication unit 902 to the user equipment during the handover process.
  • the processing unit 901 may be a processor or a controller, and may be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application specific integrated circuit (Application- Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof, which may be implemented or executed in conjunction with the present disclosure.
  • CPU central processing unit
  • DSP digital signal processor
  • ASIC Application- Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication unit 902 can be a transceiver, a transceiver circuit, a radio frequency chip, a communication interface, etc.
  • the storage unit 903 can be a memory.
  • the processing unit 901 is a processor
  • the communication unit 902 is a communication interface
  • the storage unit 903 is a memory
  • the computer device according to the embodiment of the present application may be the computer device shown in FIG.
  • the embodiment of the present application further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute a user in the method embodiment as described above Some or all of the steps described by the device, the first network device, or the second network device.
  • the embodiment of the present application further provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to execute a user as in the above method Some or all of the steps described by the device, the first network device, or the second network device.
  • the computer program product can be a software installation package.
  • the steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented by a processor executing software instructions.
  • the software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (DVD)), or a semiconductor medium (for example, a solid state disk (SSD)). )Wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a digital video disc (DVD)
  • DVD digital video disc
  • SSD solid state disk

Abstract

本申请实施例提供了一种数据传输方法、切换方法及相关设备。在本申请中，第一网络设备与第二网络设备协商的TDM模式的配置信息，该TDM模式的配置信息用于所述用户设备使用TDM模式，TDM模式用于用户设备与第一网络设备和第二网络设备保持连接，用户设备在接收到来自第一网络设备的切换指令后，用户设备与第一网络设备或第二网络设备进行数据传输。采用本申请实施例可缩短数据中断的时长。

Description

数据传输方法、切换方法及相关设备 技术领域
本申请涉及通信技术领域，具体涉及一种数据传输方法、切换方法及相关设备。
背景技术
当网络信号发生变化时，用户设备(User Equipment，UE)会进行切换。比如从长期演进(Long Term Evolution，LTE)切换至带宽码分多址(Wideband Code Division Multiple Access，WCDMA)，从WCDMA切换至全球移动通信系统(Global System for Mobile，GSM)，从GSM切换至WCDMA，从WCDMA切换至LTE等。或者当UE从一个小区(Cell Group，CG)移动到另一个小区时，UE也会进行切换。比如从当前接入的小区切换至另一个小区。
目前，切换流程主要包括3个过程，这3个过程有：切换准备过程、切换执行过程和切换完成过程。在切换执行过程中，UE侧跟网络侧出现连接中断，进而导致UE侧与网络侧出现数据中断。
发明内容
本申请实施例提供了一种数据传输方法、切换方法及相关设备，用于缩短数据中断的时长。
第一方面，本申请实施例提供一种数据传输方法，包括：
用户设备接收来自第一网络设备的切换指令，所述切换指令携带所述第一网络设备与第二网络设备协商的TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式；
所述用户设备以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输。
第二方面，本申请实施例提供一种切换方法，包括：
第二网络设备接收来自第一网络设备的切换请求，所述切换请求携带用户设备的射频收发能力；
所述第二网络设备根据所述射频收发能力确定TDM模式的配置信息；
所述第二网络设备针对所述切换请求向所述第一网络设备发送切换确认响应，所述切换确认响应携带所述TDM模式的配置信息，所述切换确认响应用于所述第一网络设备将所述TDM模式的配置信息发送给用户设备，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
第三方面，本申请实施例提供一种切换方法，包括：
第一网络设备向第二网络设备发送切换请求，所述切换请求携带用户设备的射频收发能力；
所述第一网络设备接收来自所述第二网络设备的切换确认响应，所述切换确认响应携带所述第二网络设备根据所述射频收发能力确定的TDM模式的配置信息；
所述第一网络设备向用户设备发送切换指令，所述切换指令携带所述TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
第四方面，本申请实施例提供一种用户设备，包括通信单元和处理单元，其中：
所述处理单元，用于通过所述通信单元接收来自第一网络设备的切换指令，所述切换 指令携带所述第一网络设备与第二网络设备协商的TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式；
所述处理单元，还用于以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输。
第五方面，本申请实施例提供一种网络设备，应用于包括第一网络设备、第二网络设备和用户设备的通信系统，所述网络设备为所述第二网络设备，包括通信单元和处理单元，其中：
所述处理单元，用于通过所述通信单元接收来自第一网络设备的切换请求，所述切换请求携带用户设备的射频收发能力；
所述处理单元，还用于根据所述射频收发能力确定TDM模式的配置信息；
所述处理单元，还用于通过所述通信单元针对所述切换请求向所述第一网络设备发送切换确认响应，所述切换确认响应携带所述TDM模式的配置信息，所述切换确认响应用于所述第一网络设备将所述TDM模式的配置信息发送给所述用户设备，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
第六方面，本申请实施例提供一种网络设备，应用于包括第一网络设备、第二网络设备和用户设备的通信系统，所述网络设备为所述第一网络设备，包括通信单元和处理单元，其中：
所述处理单元，用于通过所述通信单元向第二网络设备发送切换请求，所述切换请求携带用户设备的射频收发能力；
所述处理单元，还用于通过所述通信单元接收来自所述第二网络设备的切换确认响应，所述切换确认响应携带所述第二网络设备根据所述射频收发能力确定的TDM模式的配置信息；
所述处理单元，还用于通过所述通信单元向所述用户设备发送切换指令，所述切换指令携带所述TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
第七方面，本申请实施例提供一种用户设备，包括一个或多个处理器、一个或多个存储器、一个或多个收发器，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述一个或多个处理器执行，所述程序包括用于执行如第一方面所述的方法中的步骤的指令。
第八方面，本申请实施例提供一种网络设备，包括一个或多个处理器、一个或多个存储器、一个或多个收发器，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述一个或多个处理器执行，所述程序包括用于执行如第二方面所述的方法中的步骤的指令。
第九方面，本申请实施例提供一种网络设备，包括一个或多个处理器、一个或多个存储器、一个或多个收发器，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述一个或多个处理器执行，所述程序包括用于执行如第三方面所述的方法中的步骤的指令。
第十方面，本申请实施例提供一种计算机可读存储介质，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如第一方面所述的方法所描述的部分或全部步骤。
第十一方面，本申请实施例提供一种计算机可读存储介质，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如第二方面所述的方法所描述的部分或全部步骤。
第十二方面，本申请实施例提供一种计算机可读存储介质，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如第三方面所述的方法所描述的部分或全部步骤。
第十三方面，本申请实施例提供一种计算机程序产品，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如第一方面所述的方法所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
第十四方面，本申请实施例提供一种计算机程序产品，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如第二方面所述的方法所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
第十五方面，本申请实施例提供一种计算机程序产品，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如第三方面所述的方法所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
可见，本申请中，第一网络设备和第二网络设备协商给用户设备配置TDM模式的配置信息，由于TDM模式的配置信息用于用户设备使用TDM模式，TDM模式用于用户设备与第一网络设备和第二网络设备保持连接，这样可使得用户设备在接收到来自第一网络设备的切换指令后，用户设备仍然可以与第一网络设备或第二网络设备进行数据传输，避免了切换导致数据中断的问题，进而缩短了数据中断的时长。
本申请的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1A是本申请实施例提供的一种无线通信系统的架构示意图；
图1B是本申请实施例提供的一种现有的在LTE下的切换流程的示意图；
图2是本申请实施例提供的一种用户设备的结构示意图；
图3是本申请实施例提供的一种网络设备的结构示意图；
图4是本申请实施例提供的一种数据传输方法的流程示意图；
图5是本申请实施例提供的一种切换方法的流程示意图；
图6是本申请实施例提供的另一种切换方法的流程示意图；
图7是本申请实施例提供的一种切换流程的示意图；
图8本申请实施例提供的一种计算机设备的结构示意图；
图9本申请实施例提供的另一种计算机设备的结构示意图。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。
本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。
图1A示出了本申请涉及的无线通信系统。所述无线通信系统不限于LTE系统，还可以是未来演进的第五代移动通信(the 5th Generation，5G)系统、新空口(New Radio，NR)系统，机器与机器通信(Machine to Machine，M2M)系统等。如图1A所示，无线通信系统100可包括：用户设备101、第一网络设备102、第二网络设备103和核心网104。其中：
第一网络设备102和第二网络设备103可以为基站，基站可以用于与用户设备101进行通信，也可以用于与核心网104进行通信。基站可以是时分同步码分多址(Time Division Synchronous Code Division Multiple Access，TD-SCDMA)系统中的基站收发台(Base Transceiver Station，BTS)，也可以是LTE系统中的演进型基站(Evolutional Node B，eNB)，以及5G系统、新空口(NR)系统中的基站。另外，基站也可以为接入点(Access Point，AP)、传输节点(Trans TRP)、中心单元(Central Unit，CU)或其他网络实体，并且可以包括以上网络实体的功能中的一些或所有功能。
用户设备101在无线通信系统100中，可以是静止的，也可以是移动的。在本申请的一些实施例中，用户设备101可以是移动设备、移动台(mobile station)、移动单元(mobile unit)、M2M终端、无线单元，远程单元、用户代理、移动客户端等等。
具体的，网络设备可用于在网络设备控制器(未示出)的控制下，通过无线接口105与用户设备101通信。在一些实施例中，所述网络设备控制器可以是核心网的一部分，也可以集成到网络设备中。第一网络设备102与第二网络设备103之间，第一网络设备102与核心网104，第二网络设备103与核心网104可以通过回程(blackhaul)接口106(如X2接口)，直接地或者间接地，相互通信。
图1B示出了现有的在LTE下的切换流程。在图1B所示的切换流程中，切换请求到切换确认响应为切换准备过程，RRC重配置到RRC重配置完成为切换执行过程，路径切换请求到源资源释放为切换完成过程。目前在切换执行过程中，用户设备与网络设备的上行链路和下行链路处于中断状态，导致用户设备不能给网络设备发送上行数据，也不能接收网络设备下发的下行数据，进而导致用户设备与网络设备出现数据中断。
在本申请中，在切换流程中，第一网络设备102可以是源基站，第二网络设备103可以是目标基站。
本申请中，第一网络设备102和第二网络设备103协商给用户设备101配置TDM模式的配置信息，由于TDM模式的配置信息用于用户设备101使用TDM模式，TDM模式用于用户设备101与第一网络设备102和第二网络设备103保持连接，这样可使得用户设备101在接收到来自第一网络设备102的切换指令后，用户设备101仍然可以与第一网络设备102或第二网络设备103进行数据传输，避免了切换导致数据中断的问题，进而缩短了数据中断的时长。
需要说明的，图1A示出的无线通信系统100仅仅是为了更加清楚的说明本申请的技术方案，并不构成对本申请的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请提供的技术方案对于类似的技术问题，同样适用。
参考图2，图2示出了本申请的一些实施例提供的用户设备200。如图2所示，用户设备200可包括：一个或多个用户设备处理器201、存储器202、通信接口203、接收器205、发射器206、耦合器207、天线208、用户接口202，以及输入输出模块(包括音频输入输出模块210、按键输入模块211以及显示器212等)。这些部件可通过总线204或者其他方式连接，图2以通过总线连接为例。其中：
通信接口203可用于用户设备200与其他通信设备，例如网络设备，进行通信。具体的，所述网络设备可以是图3所示的网络设备300。具体的，通信接口203可以是长期演进(LTE)(4G)通信接口，也可以是5G或者未来新空口的通信接口。不限于无线通信接口，用户设备200还可以配置有有线的通信接口203，例如局域接入网(Local Access Network，LAN)接口。
发射器206可用于对用户设备处理器201输出的信号进行发射处理，例如信号调制。接收器205可用于对天线208接收的移动通信信号进行接收处理，例如信号解调。在本申请的一些实施例中，发射器206和接收器205可看作一个无线调制解调器。在用户设备200中，发射器206和接收器205的数量均可以是一个或者多个。天线208可用于将传输线中 的电磁能转换成自由空间中的电磁波，或者将自由空间中的电磁波转换成传输线中的电磁能。耦合器207用于将天线308接收到的移动通信信号分成多路，分配给多个的接收器205。
除了图2所示的发射器206和接收器205，用户设备200还可包括其他通信部件，例如GPS模块、蓝牙(Bluetooth)模块、无线高保真(Wireless Fidelity，Wi-Fi)模块等。不限于上述表述的无线通信信号，用户设备200还可以支持其他无线通信信号，例如卫星信号、短波信号等等。不限于无线通信，用户设备200还可以配置有有线网络接口(如LAN接口)来支持有线通信。
所述输入输出模块可用于实现户设备200和用户/外部环境之间的交互，可主要包括音频输入输出模块210、按键输入模块211以及显示器212等。具体的，所述输入输出模块还可包括：摄像头、触摸屏以及传感器等等。其中，所述输入输出模块均通过用户接口209与用户设备处理器201进行通信。
存储器202与终端处理器201耦合，用于存储各种软件程序和/或多组指令。具体的，存储器202可包括高速随机存取的存储器，并且也可包括非易失性存储器，例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器202可以存储操作系统(下述简称系统)，例如ANDROID，IOS，WINDOWS，或者LINUX等嵌入式操作系统。存储器202还可以存储网络通信程序，该网络通信程序可用于与一个或多个附加设备，一个或多个用户设备，一个或多个网络设备进行通信。存储器202还可以存储用户接口程序，该用户接口程序可以通过图形化的操作界面将应用程序的内容形象逼真的显示出来，并通过菜单、对话框以及按键等输入控件接收用户对应用程序的控制操作。
在本申请的一些实施例中，存储器202可用于存储本申请的一个或多个实施例提供的数据传输方法、切换方法在用户设备200侧的实现程序。关于本申请的一个或多个实施例提供的数据传输方法、切换方法的实现，请参考下述方法实施例。
在本申请的一些实施例中，用户设备处理器201可用于读取和执行计算机可读指令。具体的，用户设备处理器201可用于调用存储于存储器212中的程序，例如本申请的一个或多个实施例提供的数据传输方法、切换方法在用户设备200侧的实现程序，并执行该程序包含的指令。
需要说明的，图2所示的用户设备200仅仅是本申请实施例的一种实现方式，实际应用中，用户设备200还可以包括更多或更少的部件，这里不作限制。
参考图3，图3示出了本申请的一些实施例提供的网络设备300。如图3所示，网络设备300可包括：一个或多个网络设备处理器301、存储器302、通信接口303、发射器305、接收器306、耦合器307和天线308。这些部件可通过总线304或者其他式连接，图4以通过总线连接为例。其中：
通信接口303可用于网络设备300与其他通信设备，例如用户设备或其他网络设备，进行通信。具体的，所述用户设备可以是图2所示的用户设备200。具体的，通信接口303可以是长期演进(LTE)(4G)通信接口，也可以是5G或者未来新空口的通信接口。不限于无线通信接口，网络设备300还可以配置有有线的通信接口303来支持有线通信，例如一个网络设备300与其他网络设备300之间的回程链接可以是有线通信连接。
发射器305可用于对网络设备处理器301输出的信号进行发射处理，例如信号调制。接收器306可用于对天线308接收的移动通信信号进行接收处理。例如信号解调。在本申请的一些实施例中，发射器305和接收器306可看作一个无线调制解调器。在网络设备300中，发射器305和接收器306的数量均可以是一个或者多个。天线308可用于将传输线中的电磁能转换成自由空间中的电磁波，或者将自由空间中的电磁波转换成传输线中的电磁能。耦合器307可用于将移动通信号分成多路，分配给多个的接收器306。
存储器302与网络设备处理器301耦合，用于存储各种软件程序和/或多组指令。具体的，存储器302可包括高速随机存取的存储器，并且也可包括非易失性存储器，例如一个 或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器302可以存储操作系统(下述简称系统)，例如uCOS、VxWorks、RTLinux等嵌入式操作系统。存储器402还可以存储网络通信程序，该网络通信程序可用于与一个或多个附加设备，一个或多个终端设备，一个或多个网络设备进行通信。
网络设备处理器301可用于进行无线信道管理、实施呼叫和通信链路的建立和拆除，并为本控制区内的用户提供小区切换控制等。具体的，网络设备处理器301可包括：管理/通信模块(Administration Module/Communicat ion Module，AM/CM)(用于话路交换和信息交换的中心)、基本模块(Basic Module，BM)(用于完成呼叫处理、信令处理、无线资源管理、无线链路的管理和电路维护功能)、码变换及子复用单元(Transcoder and SubMultiplexer，TCSM)(用于完成复用解复用及码变换功能)等等。
在本申请的实施例中，存储器302可用于存储本申请的一个或多个实施例提供的数据传输方法、切换方法在网络设备300侧的实现程序。关于本申请的一个或多个实施例提供的数据传输方法、切换方法的实现，请参考下述方法实施例。
本申请实施例中，网络设备处理器301可用于读取和执行计算机可读指令。具体的，网络设备处理器301可用于调用存储于存储器302中的程序，例如本申请的一个或多个实施例提供的数据传输方法、切换方法在网络设备300侧的实现程序，并执行该程序包含的指令。
需要说明的，图3所示的网络设备300仅仅是本申请实施例的一种实现方式，实际应用中，网络设备300还可以包括更多或更少的部件，这里不作限制。
基于前述无线通信系统100、用户设备200以及网络设备300分别对应的实施例，本申请实施例提供了数据传输方法和切换方法。
请参见图4，图4为本申请实施例提供的一种数据传输方法的流程示意图，包括以下步骤：
步骤401：用户设备接收来自第一网络设备的切换指令，该切换指令携带第一网络设备与第二网络设备协商的时分复用(Testing Data Management，TDM)模式的配置信息，该TDM模式的配置信息用于用户设备使用TDM模式。
其中，在切换流程中，第一网络设备可以是源基站，第二网络设备可以是目标基站。
其中，在切换流程中，上述切换指令可以是第一网络设备发送给用户设备的无线资源控制(Radio Resource Control，RRC)重配置指令。
其中，在切换流程中，TDM模式用于用户设备与第一网络设备和第二网络设备保持连接。在TDM模式下，用户设备可以在不同的时隙与不同的网络设备(即第一网络设备或第二网络设备)进行数据传输，所以用户设备就可以与第一网络设备和第二网络设备保持连接了。如果没有TDM模式，用户设备只能被配置成与第一网络设备或者第二网络设备连接。
其中，TDM模式的配置信息可以使用至少一个比特来表示。例如，用户设备仅支持一种TDM模式，那么TDM模式的配置信息可以使用一个比特来表示，比如，1表示用户设备使用TDM模式，0表示用户设备不使用TDM模式。又例如，用户设备仅支持4种TDM模式，那么TDM模式的配置信息可以使用2个比特来表示，比如，4种TDM模式包括TDM模式1、TDM模式2、TDM模式3和TDM模式4，00表示用户设备使用TDM模式1，01表示用户设备使用TDM模式2、10表示用户设备使用TDM模式3、11表示用户设备使用TDM模式4。
步骤402：用户设备以该TDM模式与第一网络设备或第二网络设备进行数据传输。
具体实现中，在接收到切换指令之后，用户设备基于TDM模式配置信息进行TDM模式，即用户设备进入双收单发模式。配置了TDM模式的用户设备，在切换过程中，第一 网络设备和第二网络设备的上行连接均可以使用。
可见，本申请中，第一网络设备和第二网络设备协商给用户设备配置TDM模式的配置信息，由于TDM模式的配置信息用于用户设备使用TDM模式，TDM模式用于用户设备与第一网络设备和第二网络设备保持连接，这样可使得用户设备在接收到来自第一网络设备的切换指令后，用户设备仍然可以与第一网络设备或第二网络设备进行数据传输，避免了切换导致数据中断的问题，进而缩短了数据中断的时长。
在本申请的一实施例中，用户设备以该TDM模式与第一网络设备或第二网络设备进行数据传输的具体实现方式有：
在未监测到物理下行控制信道(Physical Downlink Control Channel，PDCCH)配置的上行授权，或上述切换指令中未提供预配置的上行授权的情况下，用户设备以所述TDM模式与所述第一网络设备进行数据传输。
具体实现中，若用户设备未监测到PDCCH配置的上行授权，或第一网络设备给用户设备发送的切换指令中未提供预配置的上行授权，表示用户设备没有第二网络设备所在的链路的上行授权，那么在该种情况下，用户设备不能与第二网络设备进行数据传输，因此在该种情况下，用户设备只能与第一网络设备进行数据传输。
在本申请的一实施例中，用户设备以该TDM模式与第一网络设备或第二网络设备进行数据传输的具体实现方式有：
在监测到PDCCH配置的上行授权，或上述切换指令中提供预配置的上行授权的情况下，用户设备根据链路属性信息确定以所述TDM模式与目标网络设备进行数据传输，所述目标网络设备包括所述第一网络设备或所述第二网络设备。
具体实现中，若用户设备监测到PDCCH配置的上行授权，或第一网络设备给用户设备发送的切换指令中提供预配置的上行授权，表示用户设备有第二网络设备所在的链路的上行授权，那么在该种情况下，用户设备既可以与第二网络设备进行数据传输，又可以与第一网络设备进行数据传输，因此在该种情况下，用户设备可根据两条链路的链路属性信息，确定是与第一网络设备进行数据传输还是与第二网络设备进行数据传输。
进一步地，上述链路属性信息包括链路质量，用户设备根据链路属性信息确定以所述TDM模式与目标网络设备进行数据传输，所述目标网络设备包括所述第一网络设备或所述第二网络设备的具体实现方式有：
在所述第一网络设备所在链路的链路质量高于所述第二网络设备所在链路的链路质量的情况下，用户设备确定以所述TDM模式与所述第一网络设备进行数据传输；
在所述第二网络设备所在链路的链路质量高于所述第一网络设备所在链路的链路质量的情况下，用户设备确定以所述TDM模式与所述第二网络设备进行数据传输。
可见，在用户设备既可以与第一网络设备进行数据传输，又可以与第二网络设备进行数据传输的情况下，用户设备选择网络质量较好的链路进行数据传输，进而提升了数据传输的时效性。
请参见图5，图5为本申请实施例提供的一种切换方法的流程示意图，包括以下步骤：
步骤501：第二网络设备接收来自第一网络设备的切换请求，该切换请求携带用户设备的射频收发能力。
其中，在切换流程中，第一网络设备可以是源基站，第二网络设备可以是目标基站。
其中，用户设备的射频收发能力指的是用户设备的双收单发能力。
其中，第一网络设备向第二网络设备发送用户设备的射频收发能力是用于告知第二网络设备用户设备支持TDM模式，或是用于告知第二网络设备用户设备支持哪些TDM模式等。
步骤502：第二网络设备根据该射频收发能力确定TDM模式的配置信息。
具体实现中，第二网络设备首先根据射频收发能力确定用户设备是否支持TDM模式，如果支持，第二网络设备根据射频收发能力确定支持哪些TDM模式。如果用户设备仅支持一种TDM模式，那么第二网络设备基于该一种TDM模式确定TDM模式的配置信息。如果用户设备仅支持多种TDM模式，那么首先选择一种TDM模式，然后基于选择的这一种TDM模式确定TDM模式的配置信息。
其中，TDM模式的配置信息可以使用至少一个比特来表示。例如，用户设备仅支持一种TDM模式，那么TDM模式的配置信息可以使用一个比特来表示，比如，1表示用户设备使用TDM模式，0表示用户设备不使用TDM模式。又例如，用户设备仅支持4种TDM模式，那么TDM模式的配置信息可以使用2个比特来表示，比如，4种TDM模式包括TDM模式1、TDM模式2、TDM模式3和TDM模式4，00表示用户设备使用TDM模式1，01表示用户设备使用TDM模式2、10表示用户设备使用TDM模式3、11表示用户设备使用TDM模式4。
步骤503：第二网络设备针对该切换请求向所述第一网络设备发送切换确认响应，该切换确认响应携带该TDM模式的配置信息，该切换确认响应用于第一网络设备将该TDM模式的配置信息发送给用户设备，该TDM模式的配置信息用于用户设备使用TDM模式，该TDM模式用于用户设备与第一网络设备和第二网络设备保持连接。
其中，在切换流程中，第一网络设备可通过RRC重配置指令将TDM模式的配置信息发送给用户设备。
其中，在切换流程中，TDM模式用于用户设备与第一网络设备和第二网络设备保持连接。
可见，本申请中，第一网络设备和第二网络设备协商给用户设备配置TDM模式的配置信息，由于TDM模式的配置信息用于用户设备使用TDM模式，TDM模式用于用户设备与第一网络设备和第二网络设备保持连接，这样可使得用户设备在接收到来自第一网络设备的切换指令后，用户设备仍然可以与第一网络设备或第二网络设备进行数据传输，避免了切换导致数据中断的问题，进而缩短了数据中断的时长。
在本申请的一实施例中，在步骤503之后，所述方法还包括：
第二网络设备准备接收来自所述用户设备的上行数据。
可见，由于配置了TDM模式的用户设备，在切换流程中，第一网络设备和第二网络设备的上行连接均可以使用，因此在步骤503之后，第二网络设备准备好接收用户设备的上行数据，可提升了数据传输的时效性。
在本申请的一实施例中，所述方法还包括：
在切换过程中，所述第二网络设备接收来自所述用户设备的上行数据；
在所述第二网络设备与核心网未连接的情况下，所述第二网络设备缓存所述上行数据；
在所述第二网络设备与所述核心网已连接的情况下，所述第二网络设备将所述上行数据转发至所述核心网。
具体实现中，在切换过程中，第二网络设备与核心网可能还未建立连接，因此第二网络设备在接收到来自用户设备的上行数据之后，第二网络设备先向确定第二网络设备是否与核心网连接，第二网络设备向确定第二网络设备是否与核心网连接，具体方式有：第二网络设备确定第二网络设备是否存储有服务网关(Serving Gate Way，SGW)地址信息，如果有，则表示第二网络设备与核心网连接，否则未建立连接。
可见，在本实施例中，在第二网络设备与核心网未连接时，第二网络设备先将接收到的上行数据缓存，这样可保证上行数据不被丢失。在第二网络设备与核心网已连接时，第二网络设备直接将接收到的上行数据转发至核心网，这样可提升了数据传输的时效性。
在本申请的一实施例中，第二网络设备缓存所述上行数据之后，所述方法还包括：
在第二网络设备与核心网已连接的情况下，第二网络设备将缓存所述上行数据转发至核心网。
可见，在第二网络设备与核心网已连接时，第二网络设备及时将缓存的上行数据转发至核心网，这样可提升了数据传输的时效性。
请参见图6，图6为本申请实施例提供的一种切换方法的流程示意图，包括以下步骤：
步骤601：第一网络设备向第二网络设备发送切换请求，该切换请求携带用户设备的射频收发能力。
其中，在切换流程中，第一网络设备可以是源基站，第二网络设备可以是目标基站。
其中，用户设备的射频收发能力指的是用户设备的双收单发能力。
其中，第一网络设备向第二网络设备发送用户设备的射频收发能力是用于告知第二网络设备用户设备支持TDM模式，或是用于告知第二网络设备用户设备支持哪些TDM模式，等。
步骤602：第一网络设备接收来自第二网络设备的切换确认响应，该切换确认响应携带第二网络设备根据该射频收发能力确定的TDM模式的配置信息。
步骤603：第一网络设备向用户设备发送切换指令，该切换指令携带所述TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
其中，在切换流程中，上述切换指令可以是第一网络设备发送给用户设备的RRC重配置指令。
其中，在切换流程中，TDM模式用于用户设备与第一网络设备和第二网络设备保持连接。
其中，TDM模式的配置信息可以使用至少一个比特来表示。例如，用户设备仅支持一种TDM模式，那么TDM模式的配置信息可以使用一个比特来表示，比如，1表示用户设备使用TDM模式，0表示用户设备不使用TDM模式。又例如，用户设备仅支持4种TDM模式，那么TDM模式的配置信息可以使用2个比特来表示，比如，4种TDM模式包括TDM模式1、TDM模式2、TDM模式3和TDM模式4，00表示用户设备使用TDM模式1，01表示用户设备使用TDM模式2、10表示用户设备使用TDM模式3、11表示用户设备使用TDM模式4。
可见，本申请中，第一网络设备和第二网络设备协商给用户设备配置TDM模式的配置信息，由于TDM模式的配置信息用于用户设备使用TDM模式，TDM模式用于用户设备与第一网络设备和第二网络设备保持连接，这样可使得用户设备在接收到来自第一网络设备的切换指令后，用户设备仍然可以与第一网络设备或第二网络设备进行数据传输，避免了切换导致数据中断的问题，进而缩短了数据中断的时长。
在本申请的一实施例中，在步骤603之后，所述方法还包括：
在切换过程中，所述第一网络设备接收来自所述用户设备的上行数据；
所述第一网络设备将所述上行数据转发至核心网。
具体实现中，目前第一网络设备接收到来自用户设备的上行数据后，第一网络设备需要将该上行数据转发至第二网络设备。在本实施例中，第一网络设备接收到来自用户设备的上行数据后，第一网络设备直接将该上行数据转发至核心网，这样可提升了数据传输的时效性。
在本申请的一实施例中，在步骤603之后，所述方法还包括：
在切换过程中，所述第一网络设备向所述用户设备发送的下行数据。
具体实现中，目前在切换过程中，第一网络设备与用户设备的下行链路是中断的，导致用户设备与网络设备的下行数据出现中断。在本实施例中，在切换过程中，第一网络设 备与用户设备的下行链路是连接的，避免了切换导致下行数据中断的问题。
结合图4、图5和图6，本申请实施例提供一种切换流程的示意图，如图7所示，包括以下步骤：
步骤701：第一网络设备向用户设备发送测量配置；用户设备接收来自第一网络设备的测量配置。
步骤702：用户设备向第一网络设备发送测量报告；第一网络设备接收来自用户设备的测量报告。
步骤703：第一网络设备向第二网络设备发送连接请求；第二网络设备接收来自第一网络设备的连接请求。
步骤704：第二网络设备针对该连接请求向第一网络设备发送连接确认响应；第一网络设备接收来自第二网络设备的连接确认响应。
步骤705：第一网络设备向第二网络设备发送切换请求；第二网络设备接收来自第一网络设备的切换请求，该切换请求携带用户设备的射频收发能力。
步骤706：第二网络设备根据用户的射频收发能力确定TDM模式的配置信息。
步骤707：第二网络设备针对该切换请求向第一网络设备发送切换确认响应；第一网络设备接收来自第二网络设备的切换确认响应，该切换确认响应携带该TDM模式的配置信息。
步骤708：第二网络设备准备接收来自用户设备的上行数据。
步骤709：第一网络设备向用户设备发送切换指令；用户设备接收来自第一网络设备的切换指令，所述切换指令携带该TDM模式的配置信息，该TDM模式的配置信息用于用户设备使用TDM模式，该TDM模式用于用户设备与第一网络设备和第二网络设备保持连接。
步骤710：在未监测到PDCCH配置的上行授权，或该切换指令中未提供预配置的上行授权的情况下，或者，在监测到PDCCH配置的上行授权，或切换指令中提供预配置的上行授权，且第一网络设备所在链路的链路质量高于第二网络设备所在链路的链路质量的情况下，用户设备向第一网络设备发送上行数据；第一网络设备接收来自用户设备的上行数据。
步骤711：第一网络设备将该上行数据转发至核心网；核心网接收来自第一网络设备的该上行数据。
步骤712：在监测到PDCCH配置的上行授权，或切换指令中提供预配置的上行授权，且第二网络设备所在链路的链路质量高于第一网络设备所在链路的链路质量的情况下，用户设备向第二网络设备发送上行数据；第二网络设备接收来自用户设备的上行数据。
步骤713：在第二网络设备与核心网未连接的情况下，第二网络设备缓存该上行数据。
其中，在步骤713之后，如果第二网络设备与核心网已连接，第二网络设备及时将缓存所述上行数据转发至核心网。
步骤714：在第二网络设备与核心网已连接的情况下，第二网络设备将该上行数据转发至核心网；核心网接收来自第二网络设备的该上行数据。
步骤715：用户设备针对切换指令向第二网络设备发送切换完成响应；第二网络设备接收来自用户设备的切换完成响应。
步骤716：第二网络设备向核心网发送路径切换请求；核心网接收来自第二网络设备的路径切换请求。
步骤717：核心网针对该路径切换请求向第二网络设备发送路径切换确认响应；第二网络设备接收来自核心网的路径切换确认响应。
步骤718：第二网络设备向第一网络设备发送用户设备的上下文释放请求；第一网络 设备接收来自第二网络设备的用户设备的上下文释放请求。
步骤719：第一网络设备释放用户设备的上下文。
需要说明的是，本实施例所述的内容的具体实现方式可参见上述方法，在此不再叙述。
请参见图8，图8是本申请实施例提供的一种计算机设备800，该计算机设备800应用于包括用户设备、第一网络设备和第二网络设备的通信系统，计算机设备800可以是用户设备、也可以是第一网络设备、也可以是第二网络设备，该计算机备800包括：一个或多个处理器、一个或多个存储器、一个或多个收发器，以及一个或多个程序；
所述一个或多个程序被存储在所述存储器中，并且被配置由所述一个或多个处理器执行。
在一实施例中，当计算机设备800是用户设备时，所述程序包括用于执行以下步骤的指令：
接收来自第一网络设备的切换指令，所述切换指令携带所述第一网络设备与第二网络设备协商的TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式；
以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输。
进一步地，在以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输方面，所述程序包括具体用于执行以下步骤的指令：
在未监测到PDCCH配置的上行授权，或所述切换指令中未提供预配置的上行授权的情况下，以所述TDM模式与所述第一网络设备进行数据传输。
进一步地，在以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输方面，所述程序包括具体用于执行以下步骤的指令：
在监测到所述PDCCH配置的上行授权，或所述切换指令中提供预配置的上行授权的情况下，根据链路属性信息确定以所述TDM模式与目标网络设备进行数据传输，所述目标网络设备包括所述第一网络设备或所述第二网络设备。
进一步地，在根据链路属性信息确定以所述TDM模式与目标网络设备进行数据传输，所述目标网络设备包括所述第一网络设备或所述第二网络设备方面，所述程序包括具体用于执行以下步骤的指令：
在所述第一网络设备所在链路的链路质量高于所述第二网络设备所在链路的链路质量的情况下，确定以所述TDM模式与所述第一网络设备进行数据传输；
在所述第二网络设备所在链路的链路质量高于所述第一网络设备所在链路的链路质量的情况下，确定以所述TDM模式与所述第二网络设备进行数据传输。
在一实施例中，当计算机设备800是第二网络设备时，所述程序包括用于执行以下步骤的指令：
接收来自第一网络设备的切换请求，所述切换请求携带用户设备的射频收发能力；
根据所述射频收发能力确定TDM模式的配置信息；
针对所述切换请求向所述第一网络设备发送切换确认响应，所述切换确认响应携带所述TDM模式的配置信息，所述切换确认响应用于所述第一网络设备将所述TDM模式的配置信息发送给用户设备，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
进一步地，在针对所述切换请求向所述第一网络设备发送切换确认响应之后，所述程序包括还用于执行以下步骤的指令：
准备接收来自所述用户设备的上行数据。
进一步地，所述程序包括还用于执行以下步骤的指令：
在切换过程中，接收来自所述用户设备的上行数据；
在所述第二网络设备与核心网未连接的情况下，缓存所述上行数据；
在所述第二网络设备与所述核心网已连接的情况下，将所述上行数据转发至所述核心网。
进一步地，在缓存所述上行数据之后，所述程序包括还用于执行以下步骤的指令：
在所述第二网络设备与所述核心网已连接的情况下，将缓存所述上行数据转发至所述核心网。
在一实施例中，当计算机设备800是第一网络设备时，所述程序包括用于执行以下步骤的指令：
向第二网络设备发送切换请求，所述切换请求携带用户设备的射频收发能力；
接收来自所述第二网络设备的切换确认响应，所述切换确认响应携带所述第二网络设备根据所述射频收发能力确定的TDM模式的配置信息；
向用户设备发送切换指令，所述切换指令携带所述TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
进一步地，在向所述用户设备发送切换指令之后，所述程序包括还用于执行以下步骤的指令：
在切换过程中，接收来自所述用户设备的上行数据；
将所述上行数据转发至核心网。
进一步地，在向所述用户设备发送切换指令之后，所述程序包括还用于执行以下步骤的指令：
在切换过程中，向所述用户设备发送的下行数据。
需要说明的是，本实施例所述的内容的具体实现方式可参见上述方法，在此不再叙述。
请参阅图9，图9是本申请实施例提供的一种计算机设备900，该计算机设备900应用于包括用户设备、第一网络设备和第二网络设备的通信系统，计算机设备900可以是用户设备、也可以是第一网络设备、也可以是第二网络设备，用户设备900包括处理单元901、通信单元902和存储单元903。
在一实施例中，当计算机设备900是用户设备时，
处理单元901，用于通过通信单元902接收来自第一网络设备的切换指令，所述切换指令携带所述第一网络设备与第二网络设备协商的TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式；
处理单元901，还用于以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输。
进一步地，在以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输方面，处理单元901具体用于：
在未监测到PDCCH配置的上行授权，或所述切换指令中未提供预配置的上行授权的情况下，以所述TDM模式与所述第一网络设备进行数据传输。
进一步地，在以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输方面，处理单元901具体用于：
在监测到所述PDCCH配置的上行授权，或所述切换指令中提供预配置的上行授权的情况下，根据链路属性信息确定以所述TDM模式与目标网络设备进行数据传输，所述目标网络设备包括所述第一网络设备或所述第二网络设备。
进一步地，在根据链路属性信息确定以所述TDM模式与目标网络设备进行数据传输， 所述目标网络设备包括所述第一网络设备或所述第二网络设备方面，处理单元901具体用于：
在所述第一网络设备所在链路的链路质量高于所述第二网络设备所在链路的链路质量的情况下，确定以所述TDM模式与所述第一网络设备进行数据传输；
在所述第二网络设备所在链路的链路质量高于所述第一网络设备所在链路的链路质量的情况下，确定以所述TDM模式与所述第二网络设备进行数据传输。
在一实施例中，当计算机设备900是第二网络设备时，
处理单元901，用于通过通信单元902接收来自第一网络设备的切换请求，所述切换请求携带用户设备的射频收发能力；
处理单元901，还用于根据所述射频收发能力确定TDM模式的配置信息；
处理单元901，还用于通过通信单元902针对所述切换请求向所述第一网络设备发送切换确认响应，所述切换确认响应携带所述TDM模式的配置信息，所述切换确认响应用于所述第一网络设备将所述TDM模式的配置信息发送给用户设备，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
进一步地，在针对所述切换请求向所述第一网络设备发送切换确认响应之后，
处理单元901，还用于准备接收来自所述用户设备的上行数据。
进一步地，处理单元901，还用于在切换过程中，通过通信单元902接收来自所述用户设备的上行数据；
处理单元901，还用于在所述第二网络设备与核心网未连接的情况下，缓存所述上行数据；
处理单元901，还用于在所述第二网络设备与所述核心网已连接的情况下，通过通信单元902将所述上行数据转发至所述核心网。
进一步地，在缓存所述上行数据之后，
处理单元901，还用于在所述第二网络设备与所述核心网已连接的情况下，通过通信单元902将缓存所述上行数据转发至所述核心网。
在一实施例中，当计算机设备900是第一网络设备时，
处理单元901，用于通过通信单元902向第二网络设备发送切换请求，所述切换请求携带用户设备的射频收发能力；
处理单元901，还用于通过通信单元902接收来自所述第二网络设备的切换确认响应，所述切换确认响应携带所述第二网络设备根据所述射频收发能力确定的TDM模式的配置信息；
处理单元901，还用于通过通信单元902向用户设备发送切换指令，所述切换指令携带所述TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
进一步地，在向所述用户设备发送切换指令之后，
处理单元901，还用于在切换过程中，通过通信单元902接收来自所述用户设备的上行数据；
处理单元901，还用于通过通信单元902将所述上行数据转发至核心网。
进一步地，在向所述用户设备发送切换指令之后，
处理单元901，还用于在切换过程中，通过通信单元902向所述用户设备发送的下行数据。
其中，处理单元901可以是处理器或控制器，(例如可以是中央处理器(Central  Processing Unit，CPU)，通用处理器，数字信号处理器(Digital Signal Processor，DSP)，专用集成电路(Application-Specific Integrated Circuit，ASIC)，现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等)。通信单元902可以是收发器、收发电路、射频芯片、通信接口等，存储单元903可以是存储器。
当处理单元901为处理器，通信单元902为通信接口，存储单元903为存储器时，本申请实施例所涉及的计算机设备可以为图8所示的计算机设备。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中用户设备、第一网络设备或第二网络设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如上述方法中用户设备、第一网络设备或第二网络设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
本申请实施例所描述的方法或者算法的步骤可以以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read Only Memory，ROM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于接入网设备、目标网络设备或核心网设备中。当然，处理器和存储介质也可以作为分立组件存在于接入网设备、目标网络设备或核心网设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如，固态硬盘(Solid State Disk，SSD))等。
以上所述的具体实施方式，对本申请实施例的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请实施例的具体实施方式而已，并不用于限定本申请实施例的保护范围，凡在本申请实施例的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请实施例的保护范围之内。

Claims (20)

  1. 一种数据传输方法，其特征在于，包括：
    用户设备接收来自第一网络设备的切换指令，所述切换指令携带所述第一网络设备与第二网络设备协商的时分复用TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式；
    所述用户设备以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输。
  2. 根据权利要求1所述的方法，其特征在于，所述用户设备以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输，包括：
    在未监测到物理下行控制信道PDCCH配置的上行授权，或所述切换指令中未提供预配置的上行授权的情况下，所述用户设备以所述TDM模式与所述第一网络设备进行数据传输。
  3. 根据权利要求1或2所述的方法，其特征在于，所述用户设备以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输，包括：
    在监测到所述PDCCH配置的上行授权，或所述切换指令中提供预配置的上行授权的情况下，所述用户设备根据链路属性信息确定以所述TDM模式与目标网络设备进行数据传输，所述目标网络设备包括所述第一网络设备或所述第二网络设备。
  4. 根据权利要求3所述的方法，其特征在于，所述链路属性信息包括链路质量，所述用户设备根据链路属性信息确定以所述TDM模式与目标网络设备进行数据传输，所述目标网络设备包括所述第一网络设备或所述第二网络设备，包括：
    在所述第一网络设备所在链路的链路质量高于所述第二网络设备所在链路的链路质量的情况下，所述用户设备确定以所述TDM模式与所述第一网络设备进行数据传输；
    在所述第二网络设备所在链路的链路质量高于所述第一网络设备所在链路的链路质量的情况下，所述用户设备确定以所述TDM模式与所述第二网络设备进行数据传输。
  5. 一种切换方法，其特征在于，包括：
    第二网络设备接收来自第一网络设备的切换请求，所述切换请求携带用户设备的射频收发能力；
    所述第二网络设备根据所述射频收发能力确定时分复用TDM模式的配置信息；
    所述第二网络设备针对所述切换请求向所述第一网络设备发送切换确认响应，所述切换确认响应携带所述TDM模式的配置信息，所述切换确认响应用于所述第一网络设备将所述TDM模式的配置信息发送给用户设备，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
  6. 根据权利要求5所述的方法，其特征在于，所述第二网络设备针对所述切换请求向所述第一网络设备发送切换确认响应之后，所述方法还包括：
    所述第二网络设备准备接收来自所述用户设备的上行数据。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    在切换过程中，所述第二网络设备接收来自所述用户设备的上行数据；
    在所述第二网络设备与核心网未连接的情况下，所述第二网络设备缓存所述上行数据；
    在所述第二网络设备与所述核心网已连接的情况下，所述第二网络设备将所述上行数据转发至所述核心网。
  8. 根据权利要求7所述的方法，其特征在于，所述第二网络设备缓存所述上行数据 之后，所述方法还包括：
    在所述第二网络设备与所述核心网已连接的情况下，所述第二网络设备将缓存所述上行数据转发至所述核心网。
  9. 一种切换方法，其特征在于，包括：
    第一网络设备向第二网络设备发送切换请求，所述切换请求携带用户设备的射频收发能力；
    所述第一网络设备接收来自所述第二网络设备的切换确认响应，所述切换确认响应携带所述第二网络设备根据所述射频收发能力确定的时分复用TDM模式的配置信息；
    所述第一网络设备向用户设备发送切换指令，所述切换指令携带所述TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
  10. 根据权利要求9所述的方法，其特征在于，所述第一网络设备向所述用户设备发送切换指令之后，所述方法还包括：
    在切换过程中，所述第一网络设备接收来自所述用户设备的上行数据；
    所述第一网络设备将所述上行数据转发至核心网。
  11. 根据权利要求9或10所述的方法，其特征在于，所述第一网络设备向所述用户设备发送切换指令之后，所述方法还包括：
    在切换过程中，所述第一网络设备向所述用户设备发送的下行数据。
  12. 一种用户设备，其特征在于，包括通信单元和处理单元，其中：
    所述处理单元，用于通过所述通信单元接收来自第一网络设备的切换指令，所述切换指令携带所述第一网络设备与第二网络设备协商的时分复用TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式；
    所述处理单元，还用于以所述TDM模式与所述第一网络设备或所述第二网络设备进行数据传输。
  13. 一种网络设备，其特征在于，应用于包括第一网络设备、第二网络设备和用户设备的通信系统，所述网络设备为所述第二网络设备，包括通信单元和处理单元，其中：
    所述处理单元，用于通过所述通信单元接收来自第一网络设备的切换请求，所述切换请求携带用户设备的射频收发能力；
    所述处理单元，还用于根据所述射频收发能力确定时分复用TDM模式的配置信息；
    所述处理单元，还用于通过所述通信单元针对所述切换请求向所述第一网络设备发送切换确认响应，所述切换确认响应携带所述TDM模式的配置信息，所述切换确认响应用于所述第一网络设备将所述TDM模式的配置信息发送给所述用户设备，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
  14. 一种网络设备，其特征在于，应用于包括第一网络设备、第二网络设备和用户设备的通信系统，所述网络设备为所述第一网络设备，包括通信单元和处理单元，其中：
    所述处理单元，用于通过所述通信单元向第二网络设备发送切换请求，所述切换请求携带用户设备的射频收发能力；
    所述处理单元，还用于通过所述通信单元接收来自所述第二网络设备的切换确认响应，所述切换确认响应携带所述第二网络设备根据所述射频收发能力确定的时分复用TDM模式的配置信息；
    所述处理单元，还用于通过所述通信单元向所述用户设备发送切换指令，所述切换指令携带所述TDM模式的配置信息，所述TDM模式的配置信息用于所述用户设备使用TDM模式，所述TDM模式用于所述用户设备与所述第一网络设备和所述第二网络设备保持连接。
  15. 一种用户设备，其特征在于，包括一个或多个处理器、一个或多个存储器、一个或多个收发器，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述一个或多个处理器执行，所述程序包括用于执行如权利要求1-4任一项所述的方法中的步骤的指令。
  16. 一种用户设备，其特征在于，包括一个或多个处理器、一个或多个存储器、一个或多个收发器，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述一个或多个处理器执行，所述程序包括用于执行如权利要求5-8任一项所述的方法中的步骤的指令。
  17. 一种用户设备，其特征在于，包括一个或多个处理器、一个或多个存储器、一个或多个收发器，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述一个或多个处理器执行，所述程序包括用于执行如权利要求9-11任一项所述的方法中的步骤的指令。
  18. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求1-4任一项所述的方法中的步骤的指令。
  19. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求5-8任一项所述的方法中的步骤的指令。
  20. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求9-11任一项所述的方法中的步骤的指令。
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