WO2021031012A1 - 用于小区切换的方法及设备 - Google Patents

用于小区切换的方法及设备 Download PDF

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Publication number
WO2021031012A1
WO2021031012A1 PCT/CN2019/101185 CN2019101185W WO2021031012A1 WO 2021031012 A1 WO2021031012 A1 WO 2021031012A1 CN 2019101185 W CN2019101185 W CN 2019101185W WO 2021031012 A1 WO2021031012 A1 WO 2021031012A1
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WIPO (PCT)
Prior art keywords
configuration
terminal device
handover
cell
message
Prior art date
Application number
PCT/CN2019/101185
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English (en)
French (fr)
Inventor
尤心
卢前溪
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/CN2019/101185 priority Critical patent/WO2021031012A1/zh
Priority to CN201980092798.8A priority patent/CN113498620B/zh
Publication of WO2021031012A1 publication Critical patent/WO2021031012A1/zh

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    • 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
    • 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

Definitions

  • This application relates to the field of communications, and more specifically, to a method and device for cell handover.
  • the New Radio (NR) system supports cell handover, for example, when a terminal device moves from one cell to another, or due to wireless communication service load adjustment, activation operation and maintenance, equipment failure, etc., in order to ensure continuous communication
  • the communication link between the terminal equipment and the base station of the source cell needs to be transferred to the base station of the target cell to perform the handover process.
  • a terminal device When a terminal device performs a cell handover, it can perform a handover based on a dual active stack, or it can perform a handover based on a non-dual active stack. In this case, how the terminal device should perform cell handover has become an urgent problem to be solved.
  • This application provides a method and device for cell handover, and provides a way for terminal equipment to perform cell handover.
  • a method for cell handover which includes: a terminal device performs a first operation according to first information, the first operation is for cell handover, and the cell handover includes handover based on a dual active stack And switch based on non-dual active stack.
  • a method for cell handover including: a source cell performs a first operation based on first information, the first operation is for cell handover, and the cell handover includes handover based on a dual active stack And switch based on non-dual active stack.
  • a method for cell handover includes: a target cell performs a first operation according to first information, and the first operation is for cell handover, and the cell handover includes handover based on dual active stack and Switching of non-dual activation stacks.
  • a terminal device which is used to execute the method in the first aspect or its implementation manners.
  • the terminal device includes a functional module for executing the method in the foregoing first aspect or each implementation manner thereof.
  • a network device is provided, which is used to execute the method in the second aspect or its implementation manners.
  • the network device includes a functional module for executing the method in the foregoing second aspect or each implementation manner thereof.
  • a network device is provided, which is used to execute the method in the third aspect or its implementation manners.
  • the network device includes a functional module for executing the method in the third aspect or its implementation manners.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each of its implementation modes.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned second aspect or each of its implementation modes.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory, and execute the method in the third aspect or its implementation manners.
  • a device for implementing any one of the foregoing first to third aspects or the method in each implementation manner thereof.
  • the device includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first aspect to the third aspect or any of its implementation modes method.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner thereof.
  • a computer program product including computer program instructions that cause a computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner thereof.
  • a computer program which, when run on a computer, causes the computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner thereof.
  • Fig. 1 is a schematic diagram of a wireless communication system applied in an embodiment of the present application.
  • Fig. 2 is a schematic diagram of a contention-based random access process provided by an embodiment of the present application.
  • Fig. 3 is a schematic diagram of a non-contention-based random access process provided by an embodiment of the present application.
  • Figure 4 is a schematic diagram of a cell handover method provided by an embodiment of the present application.
  • Fig. 5 is a schematic flowchart of a method for cell handover provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of another method for cell handover provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another method for cell handover provided by an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of another method for cell handover provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of another method for cell handover provided by 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 provided by an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of another network device provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • Fig. 14 is a schematic structural diagram of a device according to an embodiment of the present application.
  • Fig. 15 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • Fig. 1 is a schematic diagram of a system 100 according to an embodiment of the present application.
  • the terminal device 110 is connected to the first network device 130 under the first communication system and the second network device 120 under the second communication system.
  • the first network device 130 is a Long Term Evolution (Long Term Evolution).
  • the second network device 120 is a network device under a New Radio (NR).
  • NR New Radio
  • the first network device 130 and the second network device 120 may include multiple cells.
  • FIG. 1 is an example of a communication system in an embodiment of the present application, and the embodiment of the present application is not limited to that shown in FIG. 1.
  • the communication system to which the embodiment of the present application is adapted may include at least multiple network devices under the first communication system and/or multiple network devices under the second communication system.
  • the system 100 shown in FIG. 1 may include one main network device under the first communication system and at least one auxiliary network device under the second communication system. At least one auxiliary network device is respectively connected to the one main network device to form multiple connections, and is connected to the terminal device 110 to provide services for it. Specifically, the terminal device 110 may simultaneously establish a connection through the main network device and the auxiliary network device.
  • connection established between the terminal device 110 and the main network device is the main connection
  • connection established between the terminal device 110 and the auxiliary network device is the auxiliary connection.
  • the control signaling of the terminal device 110 may be transmitted through the main connection
  • the data of the terminal device 110 may be transmitted through the main connection and the auxiliary connection at the same time, or may be transmitted only through the auxiliary connection.
  • first communication system and the second communication system in the embodiment of the present application are different, but the specific types of the first communication system and the second communication system are not limited.
  • the first communication system and the second communication system may be various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD) ), Universal Mobile Telecommunication System (UMTS), etc.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the main network device and the auxiliary network device may be any access network device.
  • the access network device may be a base station (Base Transceiver) in the Global System of Mobile Communications (GSM) system or Code Division Multiple Access (CDMA). Station, BTS), it can also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station in a Long Term Evolution (LTE) system (Evolutional Node B, eNB or eNodeB).
  • GSM Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • Station, BTS can also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station in a Long Term Evolution (LTE) system (Evolutional Node B, eNB or eNodeB).
  • GSM Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • Station, BTS can also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system,
  • the access network device may also be a Next Generation Radio Access Network (NG RAN), or a base station (gNB) in an NR system, or a cloud radio access network (Cloud
  • NG RAN Next Generation Radio Access Network
  • gNB base station
  • Cloud Cloud
  • the radio controller in Radio Access Network, CRAN, or the access network device can be a relay station, access point, in-vehicle device, wearable device, or in the future evolution of Public Land Mobile Network (PLMN) Network equipment, etc.
  • PLMN Public Land Mobile Network
  • the first network device 130 is taken as the main network device, and the second network device 120 is taken as an auxiliary network device as an example.
  • the first network device 130 may be an LTE network device, and the second network device 120 may be an NR network device. Or, the first network device 130 may be an NR network device, and the second network device 120 may be an LTE network device. Or both the first network device 130 and the second network device 120 may be NR network devices. Or the first network device 130 may be a GSM network device, a CDMA network device, etc., and the second network device 120 may also be a GSM network device, a CDMA network device, etc. Or the first network device 130 may be a Macrocell, and the second network device 120 may be a Microcell, Picocell, Femtocell, or the like.
  • the terminal device 110 may be any terminal device, and the terminal device 110 includes but is not limited to:
  • wired lines such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection; and/or another data connection/network; and/ Or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters; and/or another terminal device
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN wireless local area networks
  • digital TV networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters
  • IoT Internet of Things
  • a terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal” or a "mobile terminal”.
  • Examples of mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio phone transceivers Electronic device.
  • Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a network equipment (for example, The cell corresponding to the base station.
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, Pico Cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • enhanced mobile broadband eMBB
  • eMBB enhanced mobile broadband
  • URLLC Typical applications of URLLC include: industrial automation, power automation, telemedicine operations (surgery), traffic safety protection, etc.
  • Typical features of mMTC include: high connection density, small data volume, delay-insensitive services, low-cost modules and long service life.
  • the terminal device needs to initiate random access to the network device to establish a connection with the network device.
  • There are many events that trigger a terminal device to perform random access such as in the initial access process of the terminal device; in the reconstruction process of the terminal device; when the terminal device has uplink data to send, but the uplink out of synchronization is detected ;
  • SR scheduling request
  • the random access of the terminal device may include contention-based random access and non-contention-based random access.
  • the terminal device sends a message 1 (message 1, MSG1) to the network device on the random access channel, where the MSG1 includes a random access preamble.
  • MSG1 may be a physical layer message.
  • the network device may send MSG2 on a downlink shared channel (DL-SCH), where MSG2 may be a random access response (RAR).
  • MSG2 may be a media access control (media access control, MAC) layer message.
  • the RAR carries the timing advance (TA) of uplink transmission, the available uplink resource information, and the temporary cell radio network temporary identifier (T-CRNTI), that is, the temporary CRNTI.
  • TA timing advance
  • T-CRNTI temporary cell radio network temporary identifier
  • the RAR can be generated by the media access control (media access control, MAC) layer of the network device.
  • media access control media access control, MAC
  • One MSG2 can simultaneously respond to random access requests from multiple terminal devices.
  • the terminal device determines whether it belongs to its own RAR message, and when it determines that it belongs to its own RAR message, sends MSG3 in the uplink resource designated by MSG2, and this MSG3 carries the terminal device specific RNTI.
  • the MSG3 may be an RRC layer message.
  • the network device may send MSG4 to the terminal device.
  • the MSG4 includes contention resolution messages and uplink transmission resources allocated by the network equipment to the terminal equipment.
  • the MSG4 may be a MAC layer message.
  • the terminal device After receiving the MSG4, the terminal device can detect whether the specific RNTI sent in the MSG3 is included in the contention resolution message sent by the network device. If it is included, it indicates that the random access procedure of the terminal device is successful; otherwise, it is considered that the random procedure fails. After the random access process fails, the terminal device needs to initiate the random access process again from the first step.
  • MSG1 and MSG2 may not use the HARQ mechanism, while MSG3 and MSG4 may use the HARQ mechanism.
  • the terminal device can also initiate the next random machine access attempt until the maximum number of retransmissions and/or maximum retransmission time allowed by the network side is reached.
  • the terminal device generally performs random access by sending a preamble to the network device. After the terminal device sends the preamble for the first time, if the current random access fails, the terminal device can send the random access preamble to the network device for the second time.
  • the transmission power of the second preamble can be the first The transmit power of the secondary preamble after the power rise.
  • the step length of the power increase may be configured by the network device, or may also be pre-configured in the terminal device.
  • the non-contention-based random access process may be as shown in FIG. 3, for example.
  • the network device sends MSG0 to the terminal device.
  • the MSG0 may include a preamble configuration message, where the preamble configuration message is used to indicate a preamble for random access.
  • the MSG0 may be a physical layer message.
  • the terminal device sends MSG 1 to the network device, where the MSG1 includes the random access preamble in S310.
  • the MSG1 may be a physical layer message.
  • the network device sends MSG2 to the terminal device, where the MSG2 may be a random access response message.
  • the MSG2 may be a MAC layer message.
  • the terminal device can obtain non-competitive random access resources through RRC signaling and/or PDCCH signaling, and perform random access on the non-competitive random access resources.
  • the following takes the handover process as an example to describe the random access process of the terminal device.
  • the embodiment of the present application does not specifically limit the communication scenario of the handover process.
  • it may be an LTE system or an NR system.
  • the communication system needs to transfer the communication link between the terminal equipment and the source cell to the target cell, that is, perform the cell handover process.
  • the source cell can be understood as the cell to which the terminal device is currently connected
  • the target cell can be understood as the cell to which the terminal device is about to switch.
  • the embodiment of the present application does not specifically limit the manner in which the terminal device performs cell switching.
  • the terminal device may perform intra-site switching, that is, the source cell and the target cell belong to the same base station.
  • the terminal device may also perform handover between the base station and the base station, that is, the source cell and the target cell belong to different base stations.
  • the embodiment of the present application does not limit the interface used for cell handover between the base station and the base station.
  • it can be cell handover based on X2 interface or Xn interface, or it can be cell handover based on S1 interface or N2 interface.
  • the handover process of the terminal device can be divided into the following three stages: handover preparation, handover execution and handover completion.
  • the handover preparation may include the terminal device measuring and reporting the link quality, sending a handover request to the source base station, and receiving a handover command sent by the source base station.
  • the handover execution may include that the terminal device immediately executes the handover process after receiving the handover command sent by the source base station. For example, you can disconnect from the source cell and complete the connection with the target cell (such as performing random access, sending an RRC handover complete message to the target base station, etc.), serial number (SN) state transfer and data forwarding, etc. .
  • the completion of the handover may include the target cell and the access and mobility management function (AMF) and the user plane function (UPF) performing link handover, releasing the UE context of the source base station, and so on.
  • AMF access and mobility management function
  • UPF user plane function
  • the link switching and releasing the UE context of the source base station can be performed by AMF and UPF.
  • the link switching and releasing the UE context of the source base station can be performed by the mobility management entity (mobility management). entity, MME).
  • MME mobility management entity
  • the handover preparation phase (401-405) may include:
  • the source base station triggers the terminal device to perform neighboring cell measurement, so that the terminal device can measure the neighboring cell and report the measurement result to the source base station.
  • the source base station evaluates the measurement result reported by the terminal device and decides whether to trigger a handover.
  • the source base station decides to trigger a handover, it can send a handover request to the target base station.
  • the target base station may start admission according to the service information carried by the source base station, and perform radio resource configuration.
  • the target base station sends a handover request confirmation message to the source base station, and returns the admission result and wireless resource configuration information in the target base station to the source base station. At this point, the handover preparation phase is complete.
  • the handover execution stage (406-408) may include:
  • the source base station after the source base station receives the handover request confirmation message of the target base station, it can trigger the terminal device to perform handover.
  • the source base station can forward the buffered data, the data packet in transit, the system serial number of the data, etc. to the target base station. And, the target base station can buffer the data received from the source base station.
  • the terminal device can disconnect from the source base station and establish synchronization with the target base station.
  • the terminal device synchronizes to the target base station. At this point, the switching execution phase is complete.
  • the third stage, the handover completion stage (409-412) can include:
  • the target base station sends a path switching request to a mobility management function (Access and Mobility Management Function, AMF).
  • AMF Access and Mobility Management Function
  • the AMF after receiving the path switching request of the target base station, the AMF performs path switching with the User Plane Function (UPF) to clear the path mark of the user plane of the source base station.
  • UPF User Plane Function
  • the AMF may send a path switching confirmation message to the target base station.
  • the target base station sends a terminal device context release message to the source base station to notify the source base station that the handover is successful, and trigger the source base station to release the terminal device context. At this point, the switch is complete.
  • the terminal device immediately starts the T304 timer after receiving the handover command, and starts downlink synchronization to the target cell, obtains the master indication block (MIB) information of the target cell, and then initiates random access. During the random access process, multiple preamble retransmissions are allowed until the random access is successful. Further, if the T304 timer expires, indicating that the handover fails, the terminal device can directly trigger the RRC connection re-establishment process.
  • MIB master indication block
  • the terminal device After receiving the handover command, the terminal device will first disconnect the connection with the source base station, and then establish the connection with the target base station. Since the terminal device disconnects the source base station and communicates with the target base station, there will be a time difference, which can be referred to as handover interruption time.
  • the handover interruption time can be understood as the end time of the communication between the terminal device and the source base station, and the time difference between the start time of the communication between the terminal device and the target base station, or it can also be understood as the time difference between the terminal device and the source base station.
  • the target base station is first added as a secondary node (SN), and then the target base station is changed from the SN to the master node (MN) through role change (role change) signaling. Finally, the source base station is released, so as to reduce the handover interruption time.
  • SN secondary node
  • MN master node
  • role change role change
  • eMBB-based handover or non-split bearer-based handover, or dual active stack-based handover.
  • the handover method can be based on the existing handover process, but after receiving the handover command, the terminal device will continue to maintain the connection with the source base station, and at the same time initiate random access to the target base station. This method can also achieve reduction The effect of switching the interruption time.
  • network devices When network devices make various event judgments or execute various algorithms, they all need to know the capabilities of the terminal device so that they can make the most appropriate judgment. Since the capabilities of different terminal devices are different or quite different, the network device needs to know the capabilities of the terminal device, and the terminal device needs to report the UE capabilities, and then the network device can determine the configuration of the terminal device in the network based on the UE capabilities.
  • the cell switch is executed immediately, that is, the connection with the source cell is released, and then the connection to the target cell is initiated. That is, the terminal device only complies with the configuration of one serving cell at the same time , The configuration of the serving cell is usually matched with the capabilities of the terminal equipment.
  • the terminal device will maintain the connection with the source cell and the target cell at the same time. In this case, how the terminal device performs cell handover becomes an urgent problem to be solved.
  • the embodiment of the present application provides a method for cell handover, which can provide a reasonable way for terminal equipment to perform cell handover. As shown in FIG. 5, the method includes step 510.
  • the cell handover may include handover based on dual active stack and handover based on non-dual active stack.
  • the source cell in the embodiment of the present application may refer to the base station of the source cell, and the target cell may refer to the base station of the target cell.
  • the source cell and the target cell are used to describe the solution of the embodiment of the present application.
  • the terminal device may determine the handover type according to the first information.
  • the first information may be information from the source cell. After determining the handover type, the source cell may send first information to the terminal device, and the first information may be used by the terminal device to determine the handover type and/or adjust the first configuration.
  • Switching types may include switching based on dual active stacks and switching based on non-dual active stacks, and switching based on non-dual active stacks may also be referred to as normal switching.
  • Handover based on the dual activation stack means that the terminal device will maintain the connection with the source cell and the target cell at the same time during the handover process.
  • Normal handover can refer to a traditional handover method, that is, after receiving a handover command, the terminal device first disconnects from the source cell, and then initiates a connection to the target cell. During the normal handover process, the terminal device will not maintain a connection with the source cell and the target cell at the same time.
  • the first configuration is the configuration of the terminal device in the source cell, that is, the first configuration is configured for the terminal device by the current serving cell (source cell) of the terminal device. Before the cell handover, the terminal device uses the first configuration to communicate with the source cell.
  • the source cell may no longer send the first configuration to the terminal device during the cell handover process.
  • the first information can be used to indicate the switching type. If the first information indicates that the switching type is dual active stack-based switching, the terminal device determines that the switching type is dual active stack-based switching; if the first information indicates that the switching type is Based on the handover of the non-dual active stack, that is, if the first information indicates that the handover type is normal handover, the terminal device determines that the handover type is normal handover.
  • the terminal device may also reduce the first configuration based on the first information.
  • the first information may be carried in a measurement configuration message, and the source cell may indicate the handover type to the terminal device through the measurement configuration message.
  • the first information may, for example, be used to instruct to adjust the first configuration.
  • the terminal device determines that the switching type is switching based on dual active stack.
  • the terminal device reduces the first configuration.
  • the first information may be a radio resource control (Radio Resource Control, RRC) reconfiguration message, and the source cell may instruct the terminal device to adjust the first configuration through the RRC reconfiguration message.
  • RRC Radio Resource Control
  • the RRC reconfiguration message may be sent to the terminal device while sending the measurement configuration information, or may be sent to the terminal device after the measurement configuration message is sent.
  • the terminal device may send second information to the source cell, where the second information is used to instruct the terminal device to complete the reduction of the first configuration.
  • the source cell can determine whether to perform dual active stack-based handover according to whether the terminal device lowers the first configuration.
  • the method includes steps S610 to S680.
  • the terminal device performs data transmission with the source cell and the user plane function (UPF) before cell handover.
  • UPF user plane function
  • the source cell may send first information to the terminal device, where the first information is used for the terminal device to determine the handover type and/or reduce the first configuration.
  • the source cell can determine the type of handover and whether the first configuration needs to be reduced according to whether it and the terminal device support handover based on dual active stack, the first configuration, and the capabilities of the terminal device.
  • the source cell can send first information to the terminal device, which instructs the terminal device to lower the One configuration.
  • the source cell can instruct the terminal device to reduce the first configuration in the following two ways.
  • the source cell sends a measurement configuration message to a terminal device, and the measurement configuration message carries indication information, and the indication information indicates that the measurement configuration is used by the terminal device to perform a dual active stack-based handover. After receiving the measurement configuration message, the terminal device can automatically reduce the first configuration.
  • the source cell may send an RRC reconfiguration message to the terminal device at the same time as the measurement configuration message or after sending the measurement configuration message.
  • the RRC reconfiguration message includes indication information, and the indication information is used to instruct the terminal device to lower the first Configuration.
  • the terminal device After receiving the RRC reconfiguration message, the terminal device determines that the handover type is the handover based on dual active stack, and reduces the first configuration.
  • the terminal device may send a measurement report to the source cell.
  • the measurement configuration message sent by the source cell to the terminal device may include a measurement event.
  • the measurement configuration message may include a threshold value of the channel quality of the target cell and/or a threshold value of the channel quality of the source cell.
  • the terminal device can measure the measurement event in the measurement configuration message. When the measurement event is met, for example, the measured channel quality of the target cell is higher than the configured threshold, and/or the measured source The channel quality of the cell is lower than the configured threshold, and the terminal device can send a measurement report to the source cell.
  • the measurement report may carry indication information, and the indication information is used to instruct the terminal device to reduce the first configuration to complete.
  • the source cell may make a handover decision based on the measurement report. For example, the source cell can determine the target cell based on the measurement report.
  • the source cell sends a handover request message to the target cell.
  • the target cell makes an access decision. For example, after the target cell receives the handover request message sent by the source cell, it can determine whether to allow the terminal device to access the target cell based on its own situation.
  • the target cell If the target cell allows the terminal device to access the cell, it may send a handover request response to the source cell.
  • the source cell may send a handover command to the terminal device according to specific conditions.
  • the terminal device can perform cell handover according to the handover command sent by the source cell.
  • the terminal device may perform a first operation according to the first information, and the first operation includes at least one of the following: determining the switching type, adjusting the first configuration, and adjusting the second Configuration.
  • the second configuration is the configuration of the terminal device in the target cell, that is, the second configuration is the configuration of the terminal device by the target cell.
  • the second configuration may be determined by the target cell after receiving the handover request sent by the source cell, and then the target cell may send the second configuration to the source cell, and the source cell sends the second configuration to the terminal device.
  • the first information may include the first configuration, the second configuration, and the capabilities of the terminal device, that is, the terminal device may perform the first operation according to the first configuration, the second configuration, and the capabilities of the terminal device.
  • the terminal device may determine the handover type according to the first configuration, the second configuration, and the capabilities of the terminal device. For another example, the terminal device may adjust the first configuration and/or the second configuration according to the first configuration, the second configuration, and the capabilities of the terminal device.
  • the terminal device determines that the switching type is switching based on the dual active stack or switching based on the non-dual active stack.
  • the terminal device can perform switching based on the dual activation stack based on the first configuration and the second configuration, or perform non-dual stack switching based on the second configuration. Activate the switching of the stack.
  • the terminal device may perform at least one of the following operations: determine that the handover type is handover based on a non-dual active stack, reduce the first configuration, and reduce the first configuration. Two configuration.
  • the terminal device can choose to perform handover based on the non-dual active stack, or the terminal device can reduce the first configuration and/or reduce the second configuration. Perform switch based on dual active stack.
  • Reducing the first configuration and/or reducing the second configuration of the terminal device may refer to that the terminal device reduces the first configuration and/or the second configuration so that the reduced configuration does not exceed the capabilities of the terminal device, thereby avoiding the configuration exceeding the terminal device’s capacity Ability to cause additional connection re-establishment process.
  • the second configuration may be obtained by the terminal device by receiving the handover command sent by the source cell. For example, after the target cell receives the handover request sent by the source cell, it can generate a handover command that includes the second configuration; then the target cell can send the generated handover command to the source cell, and the source cell sends it to the terminal device In this way, the terminal device obtains the second configuration configured by the target cell for the terminal device.
  • the terminal device may perform a first operation according to the first information, and the first operation includes at least one of the following: determining the switching type, adjusting the second configuration, and adjusting the third Configuration.
  • the second configuration is the configuration of the terminal device in the target cell.
  • the second configuration may be determined by the target cell after receiving the handover request sent by the source cell;
  • the third configuration is the terminal device after the target cell is adjusted in the source cell. Configuration under the cell. After the target cell determines the second configuration and the third configuration, the second configuration and the third configuration can be sent to the source cell, and the source cell sends the second configuration and the third configuration to the terminal device.
  • the target cell may receive a handover request message sent by the source cell.
  • the handover request message may include the capabilities of the terminal device and the first configuration.
  • the handover request message is also used to indicate the type of handover.
  • the target cell may determine the first Two configuration.
  • the target cell can also modify the first configuration. For example, if the first configuration occupies most of the capabilities of the terminal device, the target cell can reduce the first configuration to form a third configuration.
  • the target cell may send the determined second configuration and third configuration to the source cell through a handover command, and then the source cell sends the second configuration and the third configuration to the terminal device.
  • the first information may include the second configuration, the third configuration, and the capabilities of the terminal device, that is, the terminal device may perform the first operation according to the second configuration, the third configuration and the capabilities of the terminal device.
  • the terminal device may determine the handover type according to the second configuration, the third configuration and the capabilities of the terminal device. For another example, the terminal device may adjust the second configuration and/or the third configuration according to the second configuration, the third configuration, and the capabilities of the terminal device.
  • the terminal device can perform switching based on the dual activation stack of the second configuration and the third configuration, or perform non-dual activation based on the second configuration Switching of the stack.
  • the terminal device may perform at least one of the following operations: determine that the handover type is a handover based on a non-dual active stack, reduce the second configuration, and reduce the first configuration. Three configurations.
  • the terminal device can also choose to perform non-dual active stack based switching. Switch. Or, if the sum of the second configuration and the third configuration exceeds the capability of the terminal device, the terminal device may perform the handover based on the dual activation stack by reducing the second configuration and/or reducing the third configuration.
  • Reducing the second configuration and/or lowering the third configuration of the terminal device may refer to that the terminal device reduces the second configuration and/or lowers the third configuration so that the reduced configuration does not exceed the capabilities of the terminal device, thereby avoiding the configuration exceeding the terminal device’s capabilities.
  • the ability to cause additional connection re-establishment process may refer to that the terminal device reduces the second configuration and/or lowers the third configuration so that the reduced configuration does not exceed the capabilities of the terminal device, thereby avoiding the configuration exceeding the terminal device’s capabilities. The ability to cause additional connection re-establishment process.
  • the second configuration and the third configuration may be obtained by the terminal device by receiving a handover command sent by the source cell.
  • the target cell receives the handover request message sent by the source cell, it can generate a handover command that includes the second configuration and the third configuration; then the target cell can send the generated handover command to the source cell, and the source cell The cell is sent to the terminal equipment.
  • the terminal device may perform cell handover based on the second configuration.
  • the method includes steps S710 to S790.
  • the terminal equipment performs data transmission with the source cell and UPF before cell handover.
  • the source cell sends a measurement configuration message to the terminal device.
  • the measurement configuration message includes measurement events.
  • the source cell makes a handover decision according to the measurement report. For example, the source cell may determine whether the terminal device is required to perform cell handover according to the measurement report; for another example, the source cell may determine the target cell according to the measurement report.
  • the source cell may send a handover request message to the target cell.
  • the target cell makes an access decision. For example, after the target cell receives the handover request message, it can determine whether to allow the terminal device to access according to its own implementation.
  • the target cell may send a handover request response to the source cell.
  • the target cell may send a handover command to the source cell.
  • the switching command may include the second configuration.
  • the switching command may include the second configuration and the third configuration.
  • the source cell forwards the handover command to the target cell, where the handover command is also used to instruct the terminal device to perform a handover based on the dual activation stack.
  • the terminal device After receiving the handover command, the terminal device checks whether the configuration of the source cell and the configuration of the target cell match the capabilities of the terminal device.
  • the terminal device can determine whether the sum of the first configuration and the second configuration previously sent by the source cell exceeds the capability of the terminal device. For another example, if the handover command includes the second configuration and the third configuration, the terminal device can determine whether the sum of the second configuration and the third configuration exceeds the capability of the terminal device.
  • the terminal device may choose to perform normal handover.
  • the terminal device performs cell handover based on the handover command sent by the source cell.
  • the reduced configuration in the embodiment of the present application may include cancellation of dual connectivity and/or cancellation of carrier aggregation.
  • Adjusting the first configuration may include at least one of the following: deleting a secondary cell in dual connectivity, deactivating or releasing a secondary carrier in carrier aggregation.
  • Adjusting the second configuration may include at least one of the following: deleting the secondary cell in dual connectivity, deactivating or releasing the secondary carrier in carrier aggregation.
  • Adjusting the third configuration may include at least one of the following: deleting the secondary cell in dual connectivity, deactivating or releasing the secondary carrier in carrier aggregation.
  • the source cell may perform a first operation according to the first information, and the first operation is used for cell handover.
  • the cell handover may include handover based on dual active stack and handover based on non-dual active stack.
  • the first information may include the first configuration and the capability of the terminal device, and the source cell may determine the handover type according to the first configuration and the capability of the terminal device.
  • the definitions of the first configuration, the second configuration and the third configuration can be referred to the above description, and will not be repeated here.
  • the source cell may determine that the handover type is the handover based on the dual active stack. For another example, if the first configuration occupies most of the capabilities of the terminal device, the source cell may determine that the handover type is based on the dual activation stack, and reduce the first configuration; then the source cell may send instructions to the terminal device to Instruct the terminal device to lower the first configuration. For another example, if the first configuration occupies most of the capabilities of the terminal device, the source cell may determine that the handover type is a handover based on a non-dual active stack.
  • the source cell may send a first message to the terminal device, where the first message is used by the terminal device to determine the handover type.
  • the first message may include the first information described above using the terminal device as an example.
  • the terminal device may perform the first operation according to the first information in the first message.
  • the first message may be, for example, a measurement configuration message, which is used to indicate a handover type; or, for example, the first message may be an RRC reconfiguration message, which is used to instruct to adjust the first configuration.
  • the source cell may also receive second information sent by the terminal device, where the second information is used to instruct the terminal device to reduce the first configuration to complete.
  • the second information can be carried in the measurement report.
  • the source cell may determine the target cell based on the measurement report, and send a handover request message to the determined target cell.
  • the source cell may receive a second message sent by the target cell, and the second message includes the second configuration.
  • the source cell can perform a first operation according to the first configuration, the second configuration, and the capabilities of the terminal device.
  • the first operation includes at least one of the following: determining the handover type, adjusting the first configuration, adjusting the second configuration, and determining whether Send a handover command to the terminal device.
  • the source cell may determine that the handover type is a handover based on a dual active stack, or determine that the handover type is a handover based on a non-dual active stack.
  • the source cell may not send a handover command to the terminal device, or reduce the first configuration, or determine that the handover type is a handover based on a non-dual active stack.
  • the source cell can also implement the handover based on the dual active stack by reducing the first configuration and/or reducing the second configuration.
  • the second message may be, for example, a handover command, and the target cell may send the second configuration to the source cell through the handover command.
  • the source cell may receive a third message sent by the target cell, where the third message includes the second configuration and the third configuration.
  • the source cell can perform a first operation according to the second configuration, the third configuration and the capabilities of the terminal device.
  • the first operation includes at least one of the following: determining the handover type, adjusting the second configuration, adjusting the third configuration, and determining whether Send a handover command to the terminal device.
  • the source cell may determine that the handover type is a handover based on a dual active stack, or determine that the handover type is a handover based on a non-dual active stack.
  • the source cell may not send a handover command to the terminal device, or reduce the third configuration, or determine that the handover type is a handover based on a non-dual active stack.
  • the source cell can also implement the handover based on the dual active stack by reducing the second configuration and/or reducing the third configuration.
  • the third message may be, for example, a handover command, and the target cell may send the second configuration and the third configuration to the source cell through the handover command.
  • the source cell When the source cell determines that the handover type is based on the dual active stack, it can send a dual active stack handover command to the terminal device; when the source cell determines that the handover type is based on the non-dual active stack, it can send the terminal The device sends a switch command for normal switch.
  • the source cell may send a handover request message to multiple candidate target cells, and then the source cell may select a candidate target cell for cell handover according to the second configuration fed back by the multiple candidate target cells. For example, the source cell sends a handover request message to multiple target cells. Some target cells report the second configuration based on normal handover, and some target cells feedback the configuration based on dual active stack handover. The source cell can trigger based on the desired Select the target cell for the handover type.
  • the target cell may perform a first operation according to the first information, and the first operation is used for cell handover.
  • the cell handover may include handover based on dual active stack and handover based on non-dual active stack.
  • the first information may include the first configuration and the capabilities of the terminal device.
  • the target cell may perform the first operation according to the first configuration and the capabilities of the terminal device.
  • the first operation includes the following At least one of: determining the handover type, determining the second configuration, and determining the third configuration.
  • the definitions of the first configuration, the second configuration and the third configuration can refer to the above description, which will not be repeated here.
  • the target cell may determine that the handover type is handover based on the non-dual active stack.
  • the target cell can determine the second configuration according to the first configuration and the capabilities of the terminal device, so that the sum of the first configuration and the second configuration does not exceed the capabilities of the terminal device, which can avoid the sum of the first configuration and the second configuration.
  • Exceeding the capacity of the terminal device causes an additional connection re-establishment process.
  • the target cell may send a first message to the source cell, where the first message includes the second configuration.
  • the first message may be a handover command, for example.
  • the target cell can reduce the first configuration, generate the third configuration, and determine the second configuration according to the first configuration and the capabilities of the terminal device, so that the sum of the second configuration and the third configuration does not exceed the capabilities of the terminal device. Avoid the extra connection re-establishment process because the sum of the second configuration and the third configuration exceeds the capability of the terminal device.
  • the target cell may send a second message to the source cell, where the first message includes the second configuration and the third configuration.
  • the second message may be a handover command, for example.
  • the target cell may receive a handover request message sent by the source cell.
  • the handover request message may include the first configuration and the capabilities of the terminal device.
  • the handover request message is also used to indicate the handover type, for example, the handover request message indicates handover.
  • the type is switch based on dual active stack.
  • the target cell After the target cell receives the handover request message, if the target cell does not support handover based on the dual active stack, the target cell can send a handover request rejection message to the source cell, or the target cell determines that the handover type is handover based on the non-dual active stack.
  • the target cell may send a handover command to the source cell.
  • the handover command includes a second configuration, and the second configuration may be determined based on all capabilities of the terminal device.
  • the method includes steps S810 to S880.
  • the terminal equipment performs data transmission with the source cell and UPF before cell handover.
  • the source cell sends a measurement configuration message to the terminal device.
  • the measurement configuration message includes measurement events.
  • the source cell makes a handover decision based on the measurement report.
  • the source cell may determine at least one target cell based on the measurement report.
  • the source cell sends a handover request message to the at least one target cell.
  • the handover request message includes the configuration of the source cell (first configuration) and the capabilities of the terminal device.
  • the handover request message may also carry indication information, and the indication information is used to indicate the handover type.
  • the target cell may make an access decision according to the handover request message.
  • the handover type indicated in the handover request message is a handover based on the dual active stack. If the target cell does not support handover based on the dual activation stack, the target cell may send a handover command based on normal handover to the source cell.
  • the source cell sends the received handover command to the terminal device.
  • S880 The terminal device performs cell handover based on the handover command sent by the source cell.
  • the method includes steps S910 to S990.
  • the terminal equipment performs data transmission with the source cell and UPF before cell handover.
  • the source cell sends a measurement configuration message to the terminal device.
  • the measurement configuration message includes measurement events.
  • the source cell makes a handover decision based on the measurement report. For example, the source cell determines at least one target cell based on the measurement report.
  • the source cell sends a handover request message to the at least one target cell.
  • the handover request message includes the configuration of the source cell (first configuration) and the capabilities of the terminal device.
  • the handover request message may also carry indication information, and the indication information is used to indicate the handover type.
  • the target cell may make an access decision according to the handover request message.
  • the target cell can determine the handover command of the target cell based on the first configuration and the capabilities of the terminal device, that is, determine the configuration of the target cell (the second configuration).
  • the target cell can determine the second configuration according to the first configuration and the capabilities of the terminal device; or if the target cell If the cell supports handover based on the dual activation stack, the target cell can determine the second configuration and the adjusted configuration of the source cell (third configuration) according to the first configuration and the capabilities of the terminal device.
  • the target cell sends a handover command in response to the handover request to the source cell, and indicates that the handover command is a handover command based on the dual activation stack.
  • the switching command may include the second configuration, or the switching command may include the second configuration and the third configuration.
  • the source cell may check whether the sum of the configuration of the source cell and the configuration of the target cell exceeds the capability of the terminal device.
  • the source cell may send a handover command based on normal handover to the terminal device.
  • the source cell may determine whether the sum of the second configuration and the first configuration previously sent to the terminal device exceeds the capability of the terminal device. For another example, if the handover command received by the source cell includes the second configuration and the third configuration, the source cell may determine whether the sum of the second configuration and the third configuration exceeds the capability of the terminal device.
  • the terminal device performs cell handover based on the handover command sent by the source cell.
  • the target cell when the target cell generates the second configuration, it can ensure that the sum of the first configuration and the second configuration does not exceed the capabilities of the terminal device.
  • the target cell can send the second configuration to the source cell; after the source cell receives the second configuration, The second configuration can be directly sent to the terminal device, or it can be judged whether the sum of the first configuration and the second configuration exceeds the capabilities of the terminal device; after the terminal device receives the second configuration, it can perform dual configuration based on the first configuration and the second configuration.
  • the switching of the activation stack may also be judged whether the sum of the first configuration and the second configuration exceeds the capability of the terminal device, and then the cell switching is performed according to the judgment result.
  • FIG. 10 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device may be any of the terminal devices described above.
  • the terminal device 1000 in FIG. 10 includes a processing unit 1010, where:
  • the processing unit 1010 is configured to perform a first operation according to the first information, where the first operation is for cell handover, and the cell handover includes handover based on a dual active stack and handover based on a non-dual active stack.
  • the processing unit 1010 is configured to determine a handover type according to the first information.
  • the first information is used to indicate the type of handover, and/or the first information is used to indicate to adjust a first configuration, and the first configuration is the configuration of the terminal device in the source cell .
  • the processing unit 110 is configured to: when the first information indicates that the handover type is a dual-active stack-based handover, and/or, when the first information indicates that the first configuration is reduced In this case, it is determined that the handover type is the handover based on the dual activation stack.
  • the processing unit 1010 is configured to: when the first information indicates that the handover type is a dual-active stack-based handover, and/or, when the first information instructs the terminal device to lower the In the case of the first configuration, lower the first configuration.
  • the terminal device further includes a communication unit 1020, configured to send second information to the source cell, where the second information is used to indicate that the first configuration is reduced.
  • the second information is carried in a measurement report.
  • the first information is carried in a measurement configuration message, or the first information is carried in a radio resource control RRC reconfiguration message.
  • the first information includes a capability, a first configuration, and a second configuration of the terminal device
  • the first configuration is the configuration of the terminal device in the source cell
  • the second configuration is the
  • the processing unit 1010 is configured to: perform a first operation according to the capabilities of the terminal device, the first configuration and the second configuration, the first operation including the following At least one of: determining the switching type, adjusting the first configuration, and adjusting the second configuration.
  • the processing unit 1010 is configured to: in the case that the sum of the first configuration and the second configuration does not exceed the capability of the terminal device, determine that the handover type is a handover based on a dual active stack or Switching of a non-dual active stack, and/or, in the case where the sum of the first configuration and the second configuration exceeds the capability of the terminal device, perform at least one of the following operations: determining that the switching type is based on Switching of non-dual active stacks, reducing the first configuration, and reducing the second configuration.
  • the second configuration is carried in a handover command sent by the source cell, and the handover command is also used to indicate a handover type.
  • the first information includes a capability, a second configuration, and a third configuration of the terminal device
  • the second configuration is the configuration of the terminal device in the target cell
  • the third configuration is the target cell
  • the processing unit 1010 is configured to: perform a first operation according to the capabilities of the terminal device, the second configuration, and the third configuration, and the first An operation includes at least one of the following: determining the switching type, adjusting the second configuration, and adjusting the third configuration.
  • the processing unit 1010 is configured to: in the case that the sum of the second configuration and the third configuration does not exceed the capability of the terminal device, determine that the handover type is a handover based on a dual active stack or Switching of a non-dual active stack, and/or, in the case where the sum of the second configuration and the third configuration exceeds the capability of the terminal device, perform at least one of the following operations: determining that the switching type is based on Switching of non-dual active stacks, reducing the second configuration, and reducing the third configuration.
  • the second configuration and the third configuration are carried in a handover command sent by the source cell, and the handover command is also used to indicate a handover type.
  • the switching types include switching based on dual active stacks and switching based on non-dual active stacks.
  • the adjusting the first configuration includes at least one of the following: deleting a secondary cell in dual connectivity, deactivating or releasing a secondary carrier in carrier aggregation; and/or, adjusting the second configuration includes at least one of the following One: deleting the secondary cell in dual connectivity, deactivating or releasing the secondary carrier in carrier aggregation; and/or, adjusting the third configuration includes at least one of the following: deleting the secondary cell in dual connectivity, deactivating or releasing Secondary carrier in carrier aggregation.
  • FIG. 11 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • the network device may be the source cell described above.
  • the network device 1100 in FIG. 11 includes a processing unit 1110, where:
  • the processing unit 1110 is configured to perform a first operation based on the first information, where the first operation is for cell handover, and the cell handover includes handover based on the dual active stack and handover based on the non-dual active stack.
  • the first information includes a first configuration and a capability of the terminal device
  • the first configuration is the configuration of the terminal device in the source cell
  • the processing unit 1110 is configured to: A configuration and capabilities of the terminal device determine the type of handover.
  • the network device further includes a communication unit 1120, configured to send a first message to the terminal device, where the first message is used by the terminal device to determine the handover type and/or adjust the first configuration.
  • a communication unit 1120 configured to send a first message to the terminal device, where the first message is used by the terminal device to determine the handover type and/or adjust the first configuration.
  • the first message is a measurement configuration message
  • the measurement configuration message is used to indicate a handover type
  • the first message is a radio resource control RRC reconfiguration message
  • the RRC reconfiguration message is used to indicate Adjust the first configuration
  • the network device further includes a communication unit 1120, configured to receive second information sent by the terminal device, where the second information is used to indicate that the first configuration is reduced.
  • the second information is carried in a measurement report.
  • the network device further includes a communication unit 1120, configured to receive a second message sent by the target cell, the second message including a second configuration, and the second configuration means that the terminal device is in the target cell.
  • the processing unit 1110 is configured to: perform the first operation according to the first configuration, the second configuration, and the capabilities of the terminal device, and the first operation includes at least one of the following: Determine the switching type, adjust the first configuration, and determine whether to send a switching command to the terminal device.
  • the processing unit 1110 is configured to: in a case where the sum of the first configuration and the second configuration does not exceed the capability of the terminal device, determine that the handover type is a handover based on a dual active stack, or It is determined that the handover type is handover based on a non-dual active stack, and/or, in the case that the sum of the first configuration and the second configuration exceeds the capability of the terminal device, the handover command is not sent to the terminal device , Or reduce the first configuration, or determine that the handover type is handover based on non-dual active stack.
  • the network device further includes a communication unit 1120, configured to receive a third message sent by the target cell, where the third message includes a second configuration and a third configuration, and the second configuration indicates that the terminal device is The configuration in the target cell, the third configuration is the configuration of the terminal device in the source cell after the target cell is adjusted, and the processing unit 1110 is configured to: according to the second configuration and the third configuration And the ability of the terminal device to perform the first operation, and the first operation includes at least one of the following: determining a switching type, adjusting a third configuration, and determining whether to send a switching command to the terminal device.
  • a communication unit 1120 configured to receive a third message sent by the target cell, where the third message includes a second configuration and a third configuration, and the second configuration indicates that the terminal device is The configuration in the target cell, the third configuration is the configuration of the terminal device in the source cell after the target cell is adjusted, and the processing unit 1110 is configured to: according to the second configuration and the third configuration And the ability of the terminal device to perform the
  • the processing unit 1110 is configured to: in a case where the sum of the second configuration and the third configuration does not exceed the capability of the terminal device, determine that the handover type is handover based on dual activation stack, or It is determined that the handover type is handover based on a non-dual active stack, and/or, when the sum of the second configuration and the third configuration exceeds the capability of the terminal device, no handover command is sent to the terminal device , Or reduce the third configuration, or determine that the handover type is handover based on non-dual active stack.
  • the second message and/or the third message are handover commands.
  • the network device further includes a communication unit 1120, configured to send a handover request message to the target cell, where the handover request message includes the capabilities of the terminal device and the first configuration.
  • a communication unit 1120 configured to send a handover request message to the target cell, where the handover request message includes the capabilities of the terminal device and the first configuration.
  • the target cell includes at least one candidate target cell
  • the network device further includes a communication unit 1120, configured to: select a candidate target cell for handover according to the second configuration sent by the at least one candidate target cell .
  • FIG. 12 is a schematic block diagram of another network device provided by an embodiment of the present application.
  • the network device may be the target cell described above.
  • the network device 1200 in FIG. 12 includes a processing unit 1210, where:
  • the processing unit 1210 is configured to perform a first operation according to the first information, where the first operation is for cell handover, and the cell handover includes handover based on a dual active stack and handover based on a non-dual active stack.
  • the first information includes a capability and a first configuration of the terminal device, the first configuration is the configuration of the terminal device in the source cell, and the processing unit 1210 is configured to: support in the target cell
  • a first operation is performed according to the capabilities of the terminal device and the first configuration, and the first operation includes at least one of the following: determining the switching type, determining the second configuration, A third configuration is determined, where the second configuration is a configuration of the terminal device in the target cell, and the third configuration is a configuration of the terminal device in the source cell after the target cell is adjusted.
  • the processing unit 1210 is configured to: determine the second configuration according to the capabilities of the terminal device and the first configuration, so that the sum of the first configuration and the second configuration does not exceed all The capabilities of the terminal equipment.
  • the network device further includes a communication unit 1220, configured to send a first message to the source cell, where the first message includes the second configuration.
  • the processing unit 1210 is configured to: determine a second configuration and a third configuration according to the capabilities of the terminal device and the first configuration, so that the sum of the second configuration and the third configuration does not exceed all The capabilities of the terminal equipment.
  • the network device further includes a communication unit 1220, configured to send a second message to the source cell, where the second message includes the second configuration and the third configuration.
  • a communication unit 1220 configured to send a second message to the source cell, where the second message includes the second configuration and the third configuration.
  • the first message and/or the second message are handover commands.
  • the network device further includes a communication unit 1220, configured to receive a handover request message sent by the source cell, where the handover request message includes the capability of the terminal device and the first configuration.
  • a communication unit 1220 configured to receive a handover request message sent by the source cell, where the handover request message includes the capability of the terminal device and the first configuration.
  • the first information is a handover type supported by the target cell
  • the processing unit 1210 is configured to: in a case where the target cell does not support handover based on dual active stacks, determine that the handover type is based on non- Handover of the dual activation stack, or the target cell sends a handover request rejection message to the source cell.
  • the network device further includes a communication unit 1220, configured to send a handover command to the source cell when the target cell determines that the handover type is handover based on a non-dual active stack, where the handover command includes The second configuration, the second configuration is determined based on all capabilities of the terminal device.
  • a communication unit 1220 configured to send a handover command to the source cell when the target cell determines that the handover type is handover based on a non-dual active stack, where the handover command includes The second configuration, the second configuration is determined based on all capabilities of the terminal device.
  • the aforementioned communication module may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned determining module may be one or more processors.
  • FIG. 13 is a schematic structural diagram of a communication device 1300 according to an embodiment of the present application.
  • the communication device 1300 shown in FIG. 13 includes a processor 1310, and the processor 1310 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 1300 may further include a memory 1320.
  • the processor 1310 may call and run a computer program from the memory 1320 to implement the method in the embodiment of the present application.
  • the memory 1320 may be a separate device independent of the processor 1310, or it may be integrated in the processor 1310.
  • the communication device 1300 may further include a transceiver 1330, and the processor 1310 may control the transceiver 1330 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 1330 may include a transmitter and a receiver.
  • the transceiver 1330 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 1300 may specifically be a network device of an embodiment of the present application, and the communication device 1300 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not repeated here. .
  • the communication device 1300 may specifically be a mobile terminal/terminal device of an embodiment of the application, and the communication device 1300 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the application, for the sake of brevity , I won’t repeat it here.
  • Fig. 14 is a schematic structural diagram of a device according to an embodiment of the present application.
  • the apparatus 1400 shown in FIG. 14 includes a processor 1410, and the processor 1410 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the apparatus 1400 may further include a memory 1420.
  • the processor 1410 may call and run a computer program from the memory 1420 to implement the method in the embodiment of the present application.
  • the memory 1420 may be a separate device independent of the processor 1410, or it may be integrated in the processor 1410.
  • the device 1400 may further include an input interface 1430.
  • the processor 1410 can control the input interface 1430 to communicate with other devices or devices, and specifically, can obtain information or data sent by other devices or devices.
  • the device 1400 may further include an output interface 1440.
  • the processor 1410 can control the output interface 1440 to communicate with other devices or devices, and specifically, can output information or data to other devices or devices.
  • the device can be applied to the network equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application.
  • the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application.
  • details are not described herein again.
  • the device can be applied to the mobile terminal/terminal device in the embodiment of this application, and the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application.
  • the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application.
  • the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application.
  • the device mentioned in the embodiments of the present application may be a chip, and the chip may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-chip.
  • FIG. 15 is a schematic block diagram of a communication system 1500 according to an embodiment of the present application. As shown in FIG. 15, the communication system 1500 includes a terminal device 1510 and a network device 1520.
  • the terminal device 1510 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 1520 can be used to implement the corresponding function implemented by the network device in the above method. For brevity, it will not be repeated here. .
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • Synchlink DRAM SLDRAM
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application ,
  • the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application ,
  • I will not repeat it here.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For brevity, I won't repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • I won’t repeat it here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

本申请提供了一种用于小区切换的方法及设备，提供了一种终端设备进行小区切换的方式。该方法包括：终端设备根据第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。

Description

用于小区切换的方法及设备 技术领域
本申请涉及通信领域，并且更具体地，涉及一种用于小区切换的方法及设备。
背景技术
新无线(New Radio，NR)系统支持小区切换，例如，当终端设备从一个小区移动到另一个小区，或由于无线通信业务负荷量调整、激活操作维护、设备故障等原因，为了保证通信的连续性和服务的质量，需要将该终端设备与源小区基站的通信链路转移到目标小区基站上，即执行切换过程。
终端设备在进行小区切换时，可以执行基于双激活栈的切换，也可以执行基于非双激活栈的切换。在该情况下，终端设备该如何进行小区切换成为亟需解决的问题。
发明内容
本申请提供一种用于小区切换的方法及设备，提供了一种终端设备进行小区切换的方式。
第一方面，提供了一种用于小区切换的方法，包括：终端设备根据第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
第二方面，提供了一种用于小区切换的方法，包括：源小区基于第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
第三方面，一种用于小区切换的方法，包括：目标小区根据第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
第四方面，提供了一种终端设备，用于执行上述第一方面或其各实现方式中的方法。
具体地，该终端设备包括用于执行上述第一方面或其各实现方式中的方法的功能模块。
第五方面，提供了一种网络设备，用于执行上述第二方面或其各实现方式中的方法。
具体地，该网络设备包括用于执行上述第二方面或其各实现方式中的方法的功能模块。
第六方面，提供了一种网络设备，用于执行上述第三方面或其各实现方式中的方法。
具体地，该网络设备包括用于执行上述第三方面或其各实现方式中的方法的功能模块。
第七方面，提供了一种终端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面或其各实现方式中的方法。
第八方面，提供了一种网络设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第二方面或其各实现方式中的方法。
第九方面，提供了一种网络设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第三方面或其各实现方式中的方法。
第十方面，提供了一种装置，用于实现上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
具体地，该装置包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该装置的设备执行如上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第十一方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第十二方面，提供了一种计算机程序产品，包括计算机程序指令，所述计算机程序指令使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第十三方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
附图说明
图1是本申请实施例应用的无线通信系统的示意图。
图2是本申请实施例提供的一种基于竞争的随机接入过程的示意图。
图3是本申请实施例提供的一种基于非竞争的随机接入过程的示意图。
图4是本申请实施例提供的一种小区切换的方法的示意图。
图5是本申请实施例提供的一种用于小区切换的方法的示意性流程图。
图6是本申请实施例提供的另一种用于小区切换的方法的示意性流程图。
图7是本申请实施例提供的另一种用于小区切换的方法的示意性流程图。
图8是本申请实施例提供的另一种用于小区切换的方法的示意性流程图。
图9是本申请实施例提供的另一种用于小区切换的方法的示意性流程图。
图10是本申请实施例提供的一种终端设备的示意性框图。
图11是本申请实施例提供的一种网络设备的示意性框图。
图12是本申请实施例提供的另一种网络设备的示意性框图。
图13是本申请实施例的通信设备的示意性结构图。
图14是本申请实施例的装置的示意性结构图。
图15是本申请实施例的通信系统的示意性框图。
具体实施方式
图1是本申请实施例的系统100的示意图。
如图1所示，终端设备110与第一通信系统下的第一网络设备130和第二通信系统下的第二网络设备120相连，例如，该第一网络设备130为长期演进(Long Term Evolution，LTE)下的网络设备，该第二网络设备120为新空口(New Radio,NR)下的网络设备。
其中，该第一网络设备130和该第二网络设备120下可以包括多个小区。
应理解，图1是本申请实施例的通信系统的示例，本申请实施例不限于图1所示。
作为一个示例，本申请实施例适应的通信系统可以包括至少该第一通信系统下的多个网络设备和/或该第二通信系统下的多个网络设备。
例如，图1所示的系统100可以包括第一通信系统下的一个主网络设备和第二通信系统下的至少一个辅助网络设备。至少一个辅助网络设备分别与该一个主网络设备相连，构成多连接，并分别与终端设备110连接为其提供服务。具体地，终端设备110可以通过主网络设备和辅助网络设备同时建立连接。
可选地，终端设备110和主网络设备建立的连接为主连接，终端设备110与辅助网络设备建立的连接为辅连接。终端设备110的控制信令可以通过主连接进行传输，而终端设备110的数据可以通过主连接以及辅连接同时进行传输，也可以只通过辅连接进行传输。
作为又一示例，本申请实施例中的第一通信系统和第二通信系统不同，但对第一通信系统和该第二通信系统的具体类别不作限定。
例如，该第一通信系统和该第二通信系统可以是各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)等。
所述主网络设备和所述辅助网络设备可以为任意接入网设备。
可选地，在一些实施例中，所述接入网设备可以是全球移动通讯(Global System of Mobile communication，GSM)系统或码分多址(Code Division Multiple Access，CDMA)中的基站(Base Transceiver Station，BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统中的基站(NodeB，NB)，还可以是长期演进(Long Term Evolution，LTE)系统中的演进型基站(Evolutional Node B，eNB或eNodeB)。
可选地，所述接入网设备还可以是下一代无线接入网(Next Generation Radio Access Network，NG RAN)，或者是NR系统中的基站(gNB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该接入网设备可以为中继站、接入点、车载设备、可穿戴设备，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
在图1所示的系统100中，以该第一网络设备130为主网络设备，以该第二网络设备120为辅助网络设备为例。
该第一网络设备130可以为LTE网络设备，该第二网络设备120可以为NR网络设备。或者该第一网络设备130可以为NR网络设备，第二网络设备120可以为LTE网络设备。或者该第一网络设备130和该第二网络设备120都可以为NR网络设备。或者该第一网络设备130可以为GSM网络设备，CDMA网络设备等，该第二网络设备120也可以为GSM网络设备，CDMA网络设备等。或者第一网络设备130可以是宏基站(Macrocell)，第二网络设备120可以为微蜂窝基站(Microcell)、微微蜂窝基站(Picocell)或者毫微微蜂窝基站(Femtocell)等。
可选地，所述终端设备110可以是任意终端设备，所述终端设备110包括但不限于：
经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和 /或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、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，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，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、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。
在本申请实施例中，网络设备为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
应理解，本申请实施例的方法可以用于传输各种类型的业务。
例如增强移动宽带(enhance mobile broadband，eMBB)，eMBB以用户获得多媒体内容、服务和数据为目标，其需求增长十分迅速。又例如eMBB，由于eMBB可能部署在不同的场景中，便如室内，市区，农村等，其能力和需求的差别也比较大，因此可以结合具体的部署场景详细分析。又例如URLLC，URLLC的典型应用包括：工业自动化，电力自动化，远程医疗操作(手术)，交通安全保障等。mMTC的典型特点包括：高连接密度，小数据量，时延不敏感业务，模块的低成本和长使用寿命等。
终端设备在一些特殊的场景下，需要向网络设备发起随机接入，以建立与网络设备之间的连接。触发终端设备进行随机接入的事件有多种，例如在终端设备的初始接入过程中；在终端设备的重建过程中；在终端设备有上行数据需要发送，但检测到上行失步的情况下；终端设备有上行数据需要发送，但没有调度请求(scheduling request，SR)资源的情况下；在终端设备需要进行小区切换的情况下；在基站有下行数据需要发送，但检测到上行失步的情况下。
终端设备的随机接入可以包括基于竞争的随机接入和基于非竞争的随机接入。
基于竞争的随机接入过程可以参照图2所示。
S210、终端设备在随机接入信道向网络设备发送消息1(message 1，MSG1)，该MSG1中包含随机接入前导码。其中，该MSG1可以是物理层消息。
S220、网络设备收到MSG1之后，可以在下行共享信道(downlink share channel，DL-SCH)发送MSG2，其中，MSG2可以为随机接入响应(random access response，RAR)。其中，该MSG2可以为媒体接入控制(media access control，MAC)层消息。
其中，RAR中携带了上行传输的时间提前量(timeing advance，TA)和可以使用的上行资源信息以及临时小区无线网络临时标识(temporary cell radio network temporary identifier，T-CRNTI)，也即临时CRNTI。
可选地，RAR可以由网络设备的媒体接入控制(media access control，MAC)层产生。一条MSG2可以同时对应多个终端设备的随机接入请求响应。
S230中，终端设备在接收到MSG2后，判断是否属于自己的RAR消息，在判断为属于自己的RAR消息时，在MSG2指定的上行资源中发送MSG3，该MSG3携带终端设备特定的RNTI。其中，该MSG3可以为RRC层消息。
在步骤240中，网络设备在接收到MSG3之后，可以向终端设备发送MSG4。其中，该MSG4中包括竞争解决消息以及网络设备为终端设备分配的上行传输资源。其中，该MSG4可以为MAC层消息。
终端设备接收到MSG4后，可以检测在MSG3发送的特定的RNTI是否包含在网络设备发送的竞争解决消息中。若包含，则表明终端设备随机接入过程成功，否则认为随机过程失败。随机接入过程失败后，终端设备需要再次从第一步开始发起随机接入过程。
可选地，MSG1和MSG2可以不使用HARQ机制，而MSG3和MSG4可以使用HARQ机制。
一次随机接入尝试失败，终端设备还可以发起下一次随机机接入尝试，直至达到网络侧允许的最大重传次数和/或最大重传时间。
终端设备一般是通过向网络设备发送前导码来进行随机接入的。终端设备在第一次发送前导码后，如果当前的随机接入失败，则终端设备可以向网络设备第二次发送随机接入的前导码，该第二次前导码的发送功率可以是第一次前导码的发送功率经过功率攀升之后的发送功率。该功率攀升的步长可以是网络设备配置的，或者也可以是预配置在终端设备中的。
基于非竞争的随机接入过程例如可以如图3所示。
S310、网络设备向终端设备发送MSG0，该MSG0可以包括前导码配置消息，该前导码配置消息用于指示随机接入的前导码。该MSG0可以为物理层消息。
S320、终端设备向网络设备发送MSG 1，该MSG1包括S310中的随机接入前导码。该MSG1可以为物理层消息。
S330、网络设备向终端设备发送MSG2，该MSG2可以为随机接入响应消息。该MSG2可以为MAC层消息。
在基于非竞争的随机接入过程中，终端设备可以通过RRC信令和/或PDCCH信令来获取非竞争随机接入的资源，并在该非竞争随机接入资源上进行随机接入。
下面以切换过程为例，对终端设备的随机接入过程进行描述。本申请实施例对切换过程的通信场景不做具体限定，例如可以为LTE系统，也可以为NR系统。
当正在使用网络服务的终端设备从源小区移动到目标小区的覆盖范围内，或者由于无线传输业务负荷量调整、激活操作维护、设备故障等原因，为了保证终端设备通信的连续性和服务的质量，通信系统需要将终端设备与源小区的通信链路转移到目标小区上，即执行小区切换过程。源小区可以理解为终端设备当前所连接的小区，目标小区可以理解为终端设备即将要切换的小区。
本申请实施例对终端设备进行小区切换的方式不做具体限定，例如终端设备可以进行站内切换，也就是说，源小区与目标小区同属于一个基站。又例如，终端设备也可以进行基站与基站之间的切换，也就是说，源小区与目标小区属于不同的基站。
本申请实施例对进行基站与基站之间的小区切换所采用的接口不做限定。例如可以是基于X2接口或Xn接口的小区切换，或者也可以是基于S1接口或N2接口的小区切换。
以Xn接口为例，终端设备的切换过程可以分为以下三个阶段：切换准备、切换执行和切换完成。
切换准备可以包括终端设备对链路质量进行测量上报、向源基站发送切换请求，以及接收源基站发送的切换命令。
切换执行可以包括终端设备在接收到源基站发送的切换命令后，立即执行切换过程。例如，可以断开与源小区的连接，并完成与目标小区的连接(如执行随机接入，发送RRC切换完成消息给目标基站等)，序列号(serial number，SN)状态转移和数据转发等。
切换完成可以包括目标小区与接入与移动性管理功能(access and mobility management function，AMF)和用户面功能(user plane function，UPF)执行链路切换，释放源基站的UE上下文等。
对于NR系统来说，链路切换和释放源基站的UE上下文可以是由AMF和UPF执行的，对于LTE系统来说，链路切换和释放源基站的UE上下文可以是由移动管理实体(mobility management entity，MME)来执行的。本申请实施例对应用的系统不做具体限定，可以应用于LTE系统，也可以应用于NR系统。
具体地，如图4所示，切换准备阶段(401～405)可以包括：
在401中，源基站触发终端设备进行邻区测量，从而终端设备可以对邻区进行测量，并将测量结果上报给源基站。
在402中，源基站对终端设备上报的测量结果进行评估，决定是否触发切换。
在403中，若源基站决定触发切换，则可以向目标基站发送切换请求。
在404中，目标基站接收到源基站发送的切换请求后，可以根据源基站携带的业务信息开始准入，并进行无线资源配置。
在405中，目标基站向源基站发送切换请求确认消息，将在目标基站内的准入结果和无线资源配置信息返回给源基站。至此，切换准备阶段完成。
第二阶段，切换执行阶段(406～408)可以包括：
在406中，源基站接收到目标基站的切换请求确认消息后，可以触发终端设备进行切换。
在407中，源基站可以将缓冲数据、在传数据包、数据的系统序列号等转发给目标基站。并且，目标基站可以缓存从源基站接收的数据。
此外，终端设备可以断开与源基站的连接，与目标基站建立同步。
在408中，终端设备同步到目标基站。至此，切换执行阶段完成。
第三阶段，切换完成阶段(409～412)可以包括：
在409中，目标基站向移动性管理功能(Access and Mobility Management Function，AMF)发送路径切换请求。
在410中，AMF接收到目标基站的路径切换请求后，与用户面功能(User Plane Function，UPF)执行路径切换，清除源基站用户面的路径标记。
在411中，在路径切换完成之后，AMF可以向目标基站发送路径切换确认消息。
在412中，目标基站向源基站发送终端设备上下文释放消息，通知源基站切换成功，并触发源基站释放终端设备上下文。至此，切换完成。
终端设备在收到切换命令后立即启动T304定时器，并开始下行同步到目标小区，获取目标小区主信息块(master indication block，MIB)信息，然后发起随机接入。随机接入过程中允许多次前导码(preamble)重传直至随机接入成功。进一步地，如果T304定时器超时，说明切换失败，则所述终端设备可以直接触发RRC连接重建过程。
在传统的切换过程中，终端设备在接收到切换命令后，会先断开与源基站之间的连接，然后再建立与目标基站之间的连接。由于终端设备在断开源基站，到与目标基站之间进行通信，会存在时间差，该时间差可以称为切换中断时间。
切换中断时间可以理解为终端设备与源基站之间通信的结束时间，以及终端设备与目标基站之间通信的开始时间之间的时间差，或者，也可以理解为终端设备与源基站之间发送的最后一条消息的时间，以及终端设备与目标基站之间发送的第一条消息的时间之间的时间差。
在3GPP移动性增强课题中，提出了对于切换时减少切换中断时间的优化方法，包括以下两种架构，本申请实施例的方案对于这两种架构都可以使用。
1、基于双连接的切换，或称为基于分离承载(split bearer)的切换。在切换时，先把目标基站添加为辅节点(secondary node，SN)，然后通过角色改变(role change)信令将目标基站从SN变为主节点(master node，MN)。最后再把源基站释放掉，从而能够达到减小切换中断时间的效果。
2、基于eMBB的切换，或称为基于非分离承载(non-split bearer)的切换，或称为基于双激活栈(dual active stack)的切换。该切换方式可以基于现有的切换流程，只是终端设备在接收到切换命令后，会继续保持与源基站之间的连接，同时向目标基站发起随机接入，采用这种方式也能达到减小切换中断时间的效果。
网络设备在做各种事件判决或执行各种算法时，均需知道终端设备的能力，这样才能做出最切合的判决。由于不同终端设备的能力各不相同或者差异较大，网络设备需要获知终端设备的能力，终端设备需要上报UE能力，然后网络设备可以根据UE能力，确定终端设备在该网络下的配置。
在传统的切换流程中，当终端设备收到切换命令后立即执行小区切换，即释放与源小区的连接，然后向目标小区发起连接，也就是说，终端设备同一时刻只遵守一个服务小区的配置，服务小区的配置通常是与终端设备的能力相匹配的。但是对于dual active stack的切换，终端设备会同时保持与源小区和目标小区的连接，在该情况下，终端设备如何进行小区切换成为亟需解决的问题。
本申请实施例提供一种用于小区切换的方法，能够为终端设备进行小区切换提供一种合理的方式。如图5所示，该方法包括步骤510。
S510、根据第一信息，执行第一操作，该第一操作用于小区切换。该小区切换可以包括基于双激活栈的切换和基于非双激活栈的切换。
下面分别从终端设备、源小区、目标小区的角度对本申请实施例进行详细描述。
本申请实施例中的源小区可以指源小区基站，目标小区可以指目标小区基站，为简化描述，采用源小区和目标小区描述本申请实施例的方案。
对于终端设备来说，作为一种实现方式，终端设备可以根据第一信息，确定切换类型。
该第一信息可以是来自源小区的信息。源小区在确定切换类型之后，可以向终端设备发送第一信息，该第一信息可用于终端设备确定切换类型和/或调整第一配置。
切换类型可以包括基于双激活栈(dual active stack)的切换和基于非双激活栈的切换，基于非双激活栈的切换可以也可以称为正常(normal)切换。
基于双激活栈的切换表示终端设备在切换过程中，会同时保持与源小区和目标小区的连接。
Normal切换可以指传统的切换方式，即终端设备在接收到切换命令后，先断开与源小区的连接，然后向目标小区发起连接。在normal切换过程中，终端设备不会同时与源小区和目标小区保持连接。
第一配置为终端设备在源小区下的配置，也就是说，该第一配置是由终端设备当前的服务小区(源 小区)为终端设备配置的。在小区切换之前，终端设备使用第一配置与源小区进行通信。
由于第一配置是终端设备在小区切换之前就已经获得的，因此终端设备在小区切换过程中，源小区可以不再向终端设备发送第一配置。
该第一信息例如可用于指示切换类型，如果该第一信息指示切换类型为基于dual active stack的切换，则终端设备确定切换类型为基于dual active stack的切换；如果该第一信息指示切换类型为基于非双激活栈的切换，也就是说，第一信息指示切换类型为正常(normal)切换，则终端设备确定切换类型为normal切换。
如果第一信息指示切换类型为基于dual active stack的切换，终端设备还可以基于第一信息，降低第一配置。
第一信息可以承载在测量配置消息中，源小区可以通过测量配置消息向终端设备指示切换类型。
该第一信息例如可用于指示调整第一配置，在第一信息指示终端设备降低第一配置的情况下，终端设备确定切换类型为基于dual active stack的切换。
另外，在第一信息指示终端设备降低第一配置的情况下，终端设备降低第一配置。
该第一信息可以为无线资源控制(radio resource control，RRC)重配置消息，源小区可以通过RRC重配置消息向终端设备指示调整第一配置。该RRC重配置消息可以是在发送测量配置信息的同时向终端设备发送的，也可以是在发送完测量配置消息之后向终端设备发送的。
终端设备在降低第一配置之后，可以向源小区发送第二信息，该二信息用于指示终端设备降低第一配置完成。这样，源小区可以根据终端设备是否降低第一配置确定是否执行基于dual active stack的切换。
举例说明，如图6所示，该方法包括步骤S610～S680。
终端设备在进行小区切换之前，和源小区、用户面功能(user plane function，UPF)进行数据传输。
S610、源小区确定切换类型后，可以向终端设备发送第一信息，该第一信息用于终端设备确定切换类型和/或降低第一配置。
源小区可以根据自己和终端设备是否支持基于dual active stack的切换、第一配置、终端设备的能力等情况，确定切换类型以及是否需要降低第一配置。
如果源小区和终端设备都支持基于dual active stack的切换，且第一配置占用了大部分的终端设备的能力，则源小区可以向终端设备发送第一信息，该第一信息指示终端设备降低第一配置。
S620、终端设备接收到第一信息后，降低第一配置。
源小区可以通过以下两种方式向终端设备指示降低第一配置。
方式1、源小区向终端设备发送测量配置消息，该测量配置消息中携带指示信息，该指示信息指示该测量配置用于终端设备执行基于dual active stack的切换。终端设备接收到该测量配置消息后，可以自动降低第一配置。
方式2、源小区可以在发送测量配置消息的同时或者发送完测量配置消息之后，向终端设备发送RRC重配置消息，该RRC重配置消息包括指示信息，该指示信息用于指示终端设备降低第一配置。终端设备接收到该RRC重配置消息后，确定切换类型为基于dual active stack的切换，并降低第一配置。
S630、终端设备可以向源小区发送测量报告。
源小区向终端设备发送的测量配置消息中可以包括测量事件，例如该测量配置消息中可以包括目标小区的信道质量的阈值和/或源小区的信道质量的阈值。终端设备接收到测量配置消息后，可以对测量配置消息中的测量事件进行测量，当测量事件满足时，如测得的目标小区的信道质量高于所配置的阈值，和/或测得的源小区的信道质量低于所配置的阈值，终端设备可以向源小区发送测量报告。本申请实施例中，该测量报告中可以携带指示信息，该指示信息用于指示终端设备降低第一配置完成。
S640、源小区接收到该测量报告后，可以基于该测量报告做出切换决定。如源小区可以基于该测量报告确定目标小区。
S650、源小区向目标小区发送切换请求消息。
S660、目标小区做出接入决定。如目标小区接收到源小区发送的切换请求消息后，可以结合自身情况确定是否允许终端设备接入到目标小区。
S670、如果目标小区允许终端设备接入到本小区，则可以向源小区发送切换请求应答。
S680、源小区接收到目标小区发送的切换请求应答后，可以根据具体情况向终端设备发送切换命令。
然后终端设备可以根据源小区发送的切换命令进行小区切换。
对于终端设备来说，作为另一种实现方式，终端设备可以根据第一信息，执行第一操作，该第一操作包括以下中的至少一种：确定切换类型、调整第一配置、调整第二配置。其中，第二配置为终端设备在目标小区下的配置，也就是说，该第二配置是目标小区为终端设备配置的。
该第二配置可以是目标小区在接收到源小区发送的切换请求后确定的，然后目标小区可以将第二配置发送给源小区，再由源小区发送给终端设备。
可选地，该第一信息可以包括第一配置、第二配置和终端设备的能力，也就是说，终端设备可以根据第一配置、第二配置和终端设备的能力，执行第一操作。
例如，终端设备可以根据第一配置、第二配置和终端设备的能力，确定切换类型。又例如，终端设备可以根据第一配置、第二配置和终端设备的能力，调整第一配置和/或第二配置。
在第一配置和第二配置之和未超过终端设备的能力的情况下，终端设备确定切换类型为基于双激活栈的切换或基于非双激活栈的切换。
也就是说，如果第一配置和第二配置之和未超过终端设备的能力，终端设备可以基于第一配置和第二配置执行基于双激活栈的切换，也可以执行基于第二配置执行非双激活栈的切换。
在第一配置和第二配置之和超过终端设备的能力的情况下，终端设备可以执行以下操作中的至少一种：确定切换类型为基于非双激活栈的切换、降低第一配置、降低第二配置。
也就是说，如果第一配置和第二配置之和超过终端设备的能力，终端设备可以选择执行基于非双激活栈的切换，或者终端设备可以通过降低第一配置和/或降低第二配置来执行基于双激活栈的切换。
终端设备降低第一配置和/或降低第二配置可以指，终端设备通过降低第一配置和/或第二配置，使得降低之后的配置不超过终端设备的能力，从而避免由于配置超过终端设备的能力而导致额外的连接重建立过程。
第二配置可以是终端设备通过接收源小区发送的切换命令获得的。例如，目标小区接收到源小区发送的切换请求后，可以生成切换命令，该切换命令中包括第二配置；然后目标小区可以将生成的切换命令发送给源小区，再由源小区发送给终端设备，这样终端设备就获得了目标小区为终端设备配置的第二配置。
对于终端设备来说，作为又一种实现方式，终端设备可以根据第一信息，执行第一操作，该第一操作包括以下中的至少一种：确定切换类型、调整第二配置、调整第三配置。其中，第二配置为终端设备在目标小区下的配置，该第二配置例如可以是目标小区在接收到源小区发送的切换请求后确定的；第三配置为目标小区调整之后的终端设备在源小区下的配置。目标小区确定第二配置和第三配置后，可以将第二配置和第三配置发送给源小区，再由源小区发送给终端设备。
具体地，目标小区可以接收源小区发送的切换请求消息，该切换请求消息中可以包括终端设备的能力以及第一配置，该切换请求消息还用于指示切换类型，目标小区可以根据具体情况确定第二配置。在某些情况下，目标小区还可以修改第一配置，如第一配置占用了大部分的终端设备的能力，则目标小区可以降低第一配置，形成第三配置。目标小区可以将确定的第二配置和第三配置通过切换命令发送给源小区，再由源小区将第二配置和第三配置发送给终端设备。
可选地，该第一信息可以包括第二配置、第三配置和终端设备的能力，也就是说，终端设备可以根据第二配置、第三配置和终端设备的能力，执行第一操作。
例如，终端设备可以根据第二配置、第三配置和终端设备的能力，确定切换类型。又例如，终端设备可以根据第二配置、第三配置和终端设备的能力，调整第二配置和/或第三配置。
在第二配置和第三配置之和未超过终端设备的能力的情况下，终端设备可以执行基于第二配置和第三配置的双激活栈的切换，也可以执行基于第二配置的非双激活栈的切换。
在第二配置和第三配置之和超过终端设备的能力的情况下，终端设备可以执行以下操作中的至少一种：确定切换类型为基于非双激活栈的切换、降低第二配置、降低第三配置。
也就是说，如果第二配置和第三配置之和超过终端设备的能力，在该情况下，即使源小区指示切换类型为基于双激活栈的切换，终端设备也可以选择执行基于非双激活栈的切换。或者，如果第二配置和第三配置之和超过终端设备的能力，终端设备可以通过降低第二配置和/或降低第三配置来执行基于双激活栈的切换。
终端设备降低第二配置和/或降低第三配置可以指，终端设备通过降低第二配置和/或降低第三配置，使得降低之后的配置不超过终端设备的能力，从而避免由于配置超过终端设备的能力而导致额外的连接重建立过程。
第二配置和第三配置可以是终端设备通过接收源小区发送的切换命令获得的。例如，目标小区接收到源小区发送的切换请求消息后，可以生成切换命令，该切换命令中包括第二配置和第三配置；然后目标小区可以将生成的切换命令发送给源小区，再由源小区发送给终端设备。
终端设备在确定切换类型为基于非双激活栈的切换的情况下，可以基于第二配置执行小区切换。
举例说明，如图7所示，该方法包括步骤S710～S790。
终端设备在进行小区切换之前，和源小区、UPF进行数据传输。
S710、源小区向终端设备发送测量配置消息。该测量配置消息中包括测量事件。
S720、当测量配置消息中的测量事件对应的条件满足时，终端设备生成测量报告，并向源小区发送该测量报告。
S730、源小区根据测量报告，做出切换决定。例如源小区可以根据测量报告确定是否需要终端设备进行小区切换；又如，源小区可以根据测量报告确定目标小区。
S740、如果源小区确定需要终端设备进行小区切换，源小区可以向目标小区发送切换请求消息。
S750、目标小区做出接入决定。如目标小区接收到切换请求消息后，可以根据自身实现确定是否允许终端设备接入。
S760、如果目标小区允许终端设备接入本小区，目标小区可以向源小区发送切换请求应答，例如，目标小区可以向源小区发送切换命令。
该切换命令中可以包括第二配置。或者该切换命令中可以包括第二配置和第三配置。
S770、源小区向目标小区转发该切换命令，该切换命令还用于指示终端设备执行基于双激活栈的切换。
S780、终端设备接收到切换命令后，检查源小区的配置、目标小区的配置是否与终端设备的能力相匹配。
例如，如果切换命令中仅包括第二配置，则终端设备可以判断之前源小区发送的第一配置、第二配置之和是否超出终端设备的能力。又例如，如果切换命令中包括第二配置和第三配置，则终端设备可以判断第二配置和第三配置之和是否超出终端设备的能力。
S790、如果源小区的配置、目标小区的配置超出终端设备的能力，终端设备可以选择执行正常的切换。
然后终端设备基于源小区发送的切换命令进行小区切换。
本申请实施例中的降低配置可以包括取消双连接和/或取消载波聚合。
调整第一配置可以包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波。
调整第二配置可以包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波。
调整第三配置可以包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波。
下面以源小区为例对本申请实施例的方案进行描述，下文中为描述的相应技术特征可以参见上文的描述。
对于源小区来说，源小区可以根据第一信息，执行第一操作，该第一操作用于小区切换。该小区切换可以包括基于双激活栈的切换和基于非双激活栈的切换。
作为一种实现方式，第一信息可以包括第一配置和终端设备的能力，源小区可以根据第一配置和终端设备的能力，确定切换类型。
第一配置、第二配置和第三配置的定义可以参见上文的描述，此处不再赘述。
例如，如果第一配置仅占用了少部分的终端设备的能力，则源小区可以确定切换类型为基于双激活栈的切换。又例如，如果第一配置占用了大部分的终端设备的能力，则源小区可以确定切换类型为基于双激活栈的切换，并降低第一配置；然后源小区可以向终端设备发送指示信息，以指示终端设备降低第一配置。再例如，如果第一配置占用了大部分的终端设备的能力，则源小区可以确定切换类型为基于非双激活栈的切换。
源小区可以向终端设备发送第一消息，该第一消息用于终端设备确定切换类型。该第一消息中可以包括上文中以终端设备为例描述的第一信息，如上文所述，终端设备可以根据第一消息中的第一信息，执行第一操作。
该第一消息例如可以为测量配置消息，该测量配置消息用于指示切换类型；或者该第一消息例如可以为RRC重配置消息，该RRC重配置消息用于指示调整第一配置。
源小区还可以接收终端设备发送的第二信息，该第二信息用于指示终端设备降低第一配置完成。
该第二信息可以承载在测量报告中。
源小区接收到该测量报告后，可以基于该测量报告确定目标小区，并向确定的目标小区发送切换请求消息。
对于源小区来说，作为另一种实现方式，源小区可以接收目标小区发送的第二消息，该第二消息中包括第二配置。源小区可以根据第一配置、第二配置和终端设备的能力，执行第一操作，该第一操作包括以下中的至少一种：确定切换类型、调整第一配置、调整第二配置、确定是否向终端设备发送切换命 令。
在第一配置和第二配置之和未超过终端设备的能力的情况下，源小区可以确定切换类型为基于双激活栈的切换、或确定切换类型为基于非双激活栈的切换。
在第一配置和第二配置之和超过终端设备的能力的情况下，源小区可以不向终端设备发送切换命令、或降低第一配置、或确定切换类型为基于非双激活栈的切换。
在某些情况下，在第一配置和第二配置之和超过终端设备的能力的情况下，源小区也可以通过降低第一配置和/或降低第二配置来实现基于双激活栈的切换。
该第二消息例如可以为切换命令，目标小区可以通过切换命令向源小区发送第二配置。
对于源小区来说，作为又一种实现方式，源小区可以接收目标小区发送的第三消息，该第三消息中包括第二配置和第三配置。源小区可以根据第二配置、第三配置和终端设备的能力，执行第一操作，该第一操作包括以下中的至少一种：确定切换类型、调整第二配置、调整第三配置、确定是否向终端设备发送切换命令。
在第二配置和第三配置之和未超过终端设备的能力的情况下，源小区可以确定切换类型为基于双激活栈的切换、或确定切换类型为基于非双激活栈的切换。
在第二配置和第三配置之和超过终端设备的能力的情况下，源小区可以不向终端设备发送切换命令、或降低第三配置、或确定切换类型为基于非双激活栈的切换。
在某些情况下，在第二配置和第三配置之和超过终端设备的能力的情况下，源小区也可以通过降低第二配置和/或降低第三配置来实现基于双激活栈的切换。
该第三消息例如可以为切换命令，目标小区可以通过切换命令向源小区发送第二配置和第三配置。
源小区在确定切换类型为基于双激活栈的切换的情况下，可以向终端设备发送dual active stack的切换命令；源小区在确定切换类型为基于非双激活栈的切换的情况下，可以向终端设备发送normal切换的切换命令。
源小区可以向多个候选目标小区发送切换请求消息，然后源小区可以根据多个候选目标小区反馈的第二配置，选择用于小区切换的候选目标小区。例如，源小区向多个目标小区发送了切换请求消息，有些目标小区反馈的第二配置为基于normal切换的配置，有些目标小区反馈了基于dual active stack切换的配置，源小区可以基于想要触发的切换类型选择目标小区。
下面以目标小区为例对本申请实施例的方案进行描述，下文中为描述的相应技术特征可以参见上文的描述。
对于目标小区来说，目标小区可以根据第一信息，执行第一操作，该第一操作用于小区切换。该小区切换可以包括基于双激活栈的切换和基于非双激活栈的切换。
第一信息可以包括第一配置和终端设备的能力，在目标小区支持基于双激活栈切换的情况下，目标小区可以根据第一配置和终端设备的能力，执行第一操作，第一操作包括以下中的至少一种：确定切换类型、确定第二配置、确定第三配置。
其中，第一配置、第二配置和第三配置的定义可以参见上文的描述，此处不再赘述。
例如，如果第一配置占用了大部分的终端设备的能力，则目标小区可以确定切换类型为基于非双激活栈的切换。
又例如，目标小区可以根据第一配置和终端设备的能力，确定第二配置，使得第一配置和第二配置之和不超过终端设备的能力，能够避免由于第一配置和第二配置之和超过终端设备的能力而导致额外的连接重建立过程。
目标小区确定第二配置之后，可以向源小区发送第一消息，该第一消息中包括第二配置。该第一消息例如可以为切换命令。
再例如，目标小区可以根据第一配置和终端设备的能力，降低第一配置，生成第三配置，并确定第二配置，使得第二配置和第三配置之和不超过终端设备的能力，能够避免由于第二配置和第三配置之和超过终端设备的能力而导致额外的连接重建立过程。
目标小区确定第二配置和第三配置之后，可以向源小区发送第二消息，该第一消息中包括第二配置和第三配置。该第二消息例如可以为切换命令。
可选地，目标小区可以接收源小区发送的切换请求消息，该切换请求消息中可以包括第一配置和终端设备的能力，该切换请求消息还用于指示切换类型，如该切换请求消息指示切换类型为基于双激活栈的切换。
目标小区接收到切换请求消息后，如果目标小区不支持基于双激活栈的切换，目标小区可以向源小区发送切换请求拒绝消息，或者目标小区确定切换类型为基于非双激活栈的切换。
如果目标小区确定切换类型为基于非双激活栈的切换，则目标小区可以向源小区发送切换命令，该 切换命令中包括第二配置，该第二配置可以是基于终端设备的全部能力确定的。
下面结合图8和图9对本申请实施例的方案进行描述。
举例说明，如图8所示，该方法包括步骤S810～S880。
终端设备在进行小区切换之前，和源小区、UPF进行数据传输。
S810、源小区向终端设备发送测量配置消息。该测量配置消息中包括测量事件。
S820、当测量配置消息中的测量事件对应的条件满足时，终端设备生成测量报告，并向源小区发送该测量报告。
S830、源小区基于测量报告作出切换决定，如源小区可以基于测量报告确定至少一个目标小区。
S840、源小区向该至少一个目标小区发送切换请求消息。该切换请求消息中包括源小区的配置(第一配置)以及终端设备的能力。可选地，该切换请求消息中还可以携带指示信息，该指示信息用于指示切换类型。
S850、目标小区接收到切换请求消息后，可以根据该切换请求消息做出接入决定。
S860、假设切换请求消息中指示的切换类型为基于双激活栈的切换。如果目标小区不支持基于双激活栈的切换，目标小区可以向源小区发送基于正常切换的切换命令。
S870、源小区将接收到的切换命令发送给终端设备。
S880、终端设备基于源小区发送的切换命令进行小区切换。
举例说明，如图9所示，该方法包括步骤S910～S990。
终端设备在进行小区切换之前，和源小区、UPF进行数据传输。
S910、源小区向终端设备发送测量配置消息。该测量配置消息中包括测量事件。
S920、当测量配置消息中的测量事件对应的条件满足时，终端设备生成测量报告，并向源小区发送该测量报告。
S930、源小区基于测量报告作出切换决定，如源小区基于测量报告确定至少一个目标小区。
S940、源小区向该至少一个目标小区发送切换请求消息。该切换请求消息中包括源小区的配置(第一配置)以及终端设备的能力。可选地，该切换请求消息中还可以携带指示信息，该指示信息用于指示切换类型。
S950、目标小区接收到切换请求消息后，可以根据该切换请求消息做出接入决定。
目标小区可以基于第一配置以及终端设备的能力，确定目标小区的切换命令，即确定目标小区的配置(第二配置)。
假设切换请求消息中指示的切换类型为基于双激活栈的切换，如果目标小区支持基于双激活栈的切换，则目标小区可以根据第一配置以及终端设备的能力，确定第二配置；或者如果目标小区支持基于双激活栈的切换，则目标小区可以根据第一配置以及终端设备的能力，确定第二配置以及调整之后的源小区的配置(第三配置)。
S960、目标小区向源小区发送切换请求应答的切换命令，并指示该切换命令为基于双激活栈的切换命令。该切换命令中可以包括第二配置，或者该切换命令中可以包括第二配置和第三配置。
S970、源小区接收到目标小区发送的切换命令后，可以检查源小区的配置和目标小区的配置之和是否超出终端设备的能力。
S980、如果源小区的配置和目标小区的配置之和超出终端设备的能力，源小区可以向终端设备发送基于正常切换的切换命令。
例如，如果源小区接收到的切换命令中仅包括第二配置，则源小区可以判断第二配置、以及之前向终端设备发送的第一配置之和是否超出终端设备的能力。又例如，如果源小区接收到的切换命令中包括第二配置和第三配置，则源小区可以判断第二配置和第三配置之和是否超出终端设备的能力。
S990、终端设备基于源小区发送的切换命令进行小区切换。
上文描述的多种实施例可以单独使用，也可以相互结合使用，本申请实施例对此不作具体限定。例如，目标小区在生成第二配置时，可以保证第一配置和第二配置之和不超出终端设备的能力，目标小区可以将第二配置发送给源小区；源小区接收到第二配置之后，可以直接将第二配置发送给终端设备，也可以判断第一配置和第二配置之和是否超出终端设备的能力；终端设备接收到第二配置之后，可以根据第一配置和第二配置执行双激活栈的切换，或者也可以判断第一配置和第二配置之和是否超出终端设备的能力，然后根据判断结果执行小区切换。
上文均是以“基于双激活栈的切换”这个术语为例进行描述的，但是本申请实施例并不限于此，本申请实施例也可以替换为其他术语，只要该术语表示终端设备在切换过程中需要同时与多个小区保持连接即可。
上文中详细描述了根据本申请实施例的用于小区切换的方法，下面将结合图10至图15，描述根据 本申请实施例的装置，方法实施例所描述的技术特征适用于以下装置实施例。
图10是本申请实施例提供的一种终端设备的示意性框图，该终端设备可以是上文描述的任一种终端设备。图10的终端设备1000包括处理单元1010，其中：
处理单元1010，用于根据第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
可选地，所述处理单元1010用于：根据所述第一信息，确定切换类型。
可选地，所述第一信息用于指示切换类型，和/或，所述第一信息用于指示调整第一配置，所述第一配置为所述终端设备在所述源小区下的配置。
可选地，所述处理单元110用于：在所述第一信息指示切换类型为基于双激活栈的切换的情况下，和/或，在所述第一信息指示降低所述第一配置的情况下，确定切换类型为基于双激活栈的切换。
可选地，所述处理单元1010用于：在所述第一信息指示切换类型为基于双激活栈的切换的情况下，和/或，在所述第一信息指示所述终端设备降低所述第一配置的情况下，降低所述第一配置。
可选地，所述终端设备还包括通信单元1020，用于：向所述源小区发送第二信息，所述第二信息用于指示降低所述第一配置完成。
可选地，所述第二信息承载在测量报告中。
可选地，第一信息承载在测量配置消息中，或第一信息承载在无线资源控制RRC重配置消息中。
可选地，所述第一信息包括所述终端设备的能力、第一配置和第二配置，所述第一配置为所述终端设备在源小区下的配置，所述第二配置为所述终端设备在目标小区下的配置，所述处理单元1010用于：根据所述终端设备的能力、所述第一配置和所述第二配置，执行第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整所述第一配置、调整所述第二配置。
可选地，所述处理单元1010用于：在所述第一配置和所述第二配置之和未超过所述终端设备的能力的情况下，确定切换类型为基于双激活栈的切换或基于非双激活栈的切换，和/或，在所述第一配置和所述第二配置之和超过所述终端设备的能力的情况下，执行以下操作中的至少一种：确定切换类型为基于非双激活栈的切换、降低所述第一配置、降低所述第二配置。
可选地，所述第二配置承载在源小区发送的切换命令中，所述切换命令还用于指示切换类型。
可选地，所述第一信息包括所述终端设备的能力、第二配置和第三配置，所述第二配置为所述终端设备在目标小区下的配置，所述第三配置为目标小区调整之后的所述终端设备在源小区下的配置，所述处理单元1010用于：根据所述终端设备的能力、所述第二配置和所述第三配置，执行第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整所述第二配置、调整所述第三配置。
可选地，所述处理单元1010用于：在所述第二配置和所述第三配置之和未超过所述终端设备的能力的情况下，确定切换类型为基于双激活栈的切换或基于非双激活栈的切换，和/或，在所述第二配置和所述第三配置之和超过所述终端设备的能力的情况下，执行以下操作中的至少一种：确定切换类型为基于非双激活栈的切换、降低所述第二配置、降低所述第三配置。
可选地，所述第二配置和所述第三配置承载在源小区发送的切换命令中，所述切换命令还用于指示切换类型。
可选地，所述切换类型包括基于双激活栈的切换和基于非双激活栈的切换。
可选地，所述调整第一配置包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波；和/或，调整第二配置包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波；和/或，调整第三配置包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波。
图11是本申请实施例提供的一种网络设备的示意性框图，该网络设备可以是上文描述的源小区。图11的网络设备1100包括处理单元1110，其中：
处理单元1110，用于基于第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
可选地，所述第一信息包括第一配置和终端设备的能力，所述第一配置为所述终端设备在所述源小区下的配置，所述处理单元1110用于：根据所述第一配置和所述终端设备的能力，确定切换类型。
可选地，所述网络设备还包括通信单元1120，用于：向所述终端设备发送第一消息，所述第一消息用于所述终端设备确定切换类型和/或调整第一配置。
可选地，所述第一消息为测量配置消息，所述测量配置消息用于指示切换类型，或，所述第一消息为无线资源控制RRC重配置消息，所述RRC重配置消息用于指示调整第一配置。
可选地，所述网络设备还包括通信单元1120，用于：接收所述终端设备发送的第二信息，所述第二信息用于指示降低所述第一配置完成。
可选地，所述第二信息承载在测量报告中。
可选地，所述网络设备还包括通信单元1120，用于：接收目标小区发送的第二消息，所述第二消息中包括第二配置，所述第二配置为终端设备在所述目标小区下的配置，所述处理单元1110用于：根据第一配置、所述第二配置和所述终端设备的能力，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整第一配置、确定是否向所述终端设备发送切换命令。
可选地，所述处理单元1110用于：在所述第一配置和所述第二配置之和未超过所述终端设备的能力的情况下，确定切换类型为基于双激活栈的切换、或确定切换类型为基于非双激活栈的切换，和/或，在所述第一配置和所述第二配置之和超过所述终端设备的能力的情况下，不向所述终端设备发送切换命令、或降低所述第一配置、或确定切换类型为基于非双激活栈的切换。
可选地，所述网络设备还包括通信单元1120，用于：接收目标小区发送的第三消息，所述第三消息中包括第二配置和第三配置，所述第二配置为终端设备在所述目标小区下的配置，所述第三配置为所述目标小区调整之后的所述终端设备在所述源小区下的配置，所述处理单元1110用于：根据第二配置、第三配置和终端设备的能力，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整第三配置、确定是否向所述终端设备发送切换命令。
可选地，所述处理单元1110用于：在所述第二配置和所述第三配置之和未超过所述终端设备的能力的情况下，确定切换类型为基于双激活栈的切换、或确定切换类型为基于非双激活栈的切换，和/或，在所述第二配置和所述第三配置之和超过所述终端设备的能力的情况下，不向所述终端设备发送切换命令、或降低所述第三配置、或确定切换类型为基于非双激活栈的切换。
可选地，第二消息和/或第三消息为切换命令。
可选地，所述网络设备还包括通信单元1120，用于：向所述目标小区发送切换请求消息，所述切换请求消息中包括所述终端设备的能力、以及第一配置。
可选地，所述目标小区包括至少一个候选目标小区，所述网络设备还包括通信单元1120，用于：根据所述至少一个候选目标小区发送的第二配置，选择用于切换的候选目标小区。
图12是本申请实施例提供的另一种网络设备的示意性框图，该网络设备可以是上文描述的目标小区。图12的网络设备1200包括处理单元1210，其中：
处理单元1210，用于根据第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
可选地，所述第一信息包括终端设备的能力和第一配置，所述第一配置为所述终端设备在源小区下的配置，所述处理单元1210用于：在所述目标小区支持基于双激活栈切换的情况下，根据所述终端设备的能力和所述第一配置，执行第一操作，所述第一操作包括以下中的至少一种：确定切换类型、确定第二配置、确定第三配置，所述第二配置为所述终端设备在所述目标小区下的配置，所述第三配置为所述目标小区调整之后的所述终端设备在所述源小区下的配置。
可选地，所述处理单元1210用于：根据所述终端设备的能力和所述第一配置，确定所述第二配置，使得所述第一配置和所述第二配置之和不超过所述终端设备的能力。
可选地，所述网络设备还包括通信单元1220，用于：向所述源小区发送第一消息，所述第一消息中包括所述第二配置。
可选地，所述处理单元1210用于：根据所述终端设备的能力和第一配置，确定第二配置和第三配置，使得所述第二配置和所述第三配置之和不超过所述终端设备的能力。
可选地，所述网络设备还包括通信单元1220，用于：向所述源小区发送第二消息，所述第二消息中包括所述第二配置和所述第三配置。
可选地，第一消息和/或第二消息为切换命令。
可选地，所述网络设备还包括通信单元1220，用于：接收所述源小区发送的切换请求消息，所述切换请求消息中包括所述终端设备的能力和所述第一配置。
可选地，所述第一信息为所述目标小区支持的切换类型，所述处理单元1210用于：在所述目标小区不支持基于双激活栈的切换的情况下，确定切换类型为基于非双激活栈的切换，或目标小区向所述源小区发送切换请求拒绝消息。
可选地，所述网络设备还包括通信单元1220，用于：在目标小区确定切换类型为基于非双激活栈的切换的情况下，向所述源小区发送切换命令，所述切换命令中包括第二配置，所述第二配置是基于所述终端设备的全部能力确定的。
可选地，在一些实施例中，上述通信模块可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述确定模块可以是一个或多个处理器。
图13是本申请实施例提供的一种通信设备1300示意性结构图。图13所示的通信设备1300包括 处理器1310，处理器1310可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图13所示，通信设备1300还可以包括存储器1320。其中，处理器1310可以从存储器1320中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1320可以是独立于处理器1310的一个单独的器件，也可以集成在处理器1310中。
可选地，如图13所示，通信设备1300还可以包括收发器1330，处理器1310可以控制该收发器1330与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器1330可以包括发射机和接收机。收发器1330还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备1300具体可为本申请实施例的网络设备，并且该通信设备1300可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备1300具体可为本申请实施例的移动终端/终端设备，并且该通信设备1300可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
图14是本申请实施例的装置的示意性结构图。图14所示的装置1400包括处理器1410，处理器1410可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图14所示，装置1400还可以包括存储器1420。其中，处理器1410可以从存储器1420中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1420可以是独立于处理器1410的一个单独的器件，也可以集成在处理器1410中。
可选地，该装置1400还可以包括输入接口1430。其中，处理器1410可以控制该输入接口1430与其他设备或装置进行通信，具体地，可以获取其他设备或装置发送的信息或数据。
可选地，该装置1400还可以包括输出接口1440。其中，处理器1410可以控制该输出接口1440与其他设备或装置进行通信，具体地，可以向其他设备或装置输出信息或数据。
可选地，该装置可应用于本申请实施例中的网络设备，并且该装置可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该装置可应用于本申请实施例中的移动终端/终端设备，并且该装置可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例提到的装置可以为芯片，该芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图15是本申请实施例提供的一种通信系统1500的示意性框图。如图15所示，该通信系统1500包括终端设备1510和网络设备1520。
其中，该终端设备1510可以用于实现上述方法中由终端设备实现的相应的功能，以及该网络设备1520可以用于实现上述方法中由网络设备实现的相应的功能为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，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。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。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。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器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，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包 括但不限于这些和任意其它适合类型的存储器。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的移动终端/终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
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，所述单元的划分，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。
所述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。
所述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。针对这样的理解，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所述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，)ROM、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请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，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (96)

  1. 一种用于小区切换的方法，其特征在于，包括：
    终端设备根据第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备根据第一信息，执行第一操作，包括：
    所述终端设备根据所述第一信息，确定切换类型。
  3. 根据权利要求2所述的方法，其特征在于，所述第一信息用于指示切换类型，和/或，所述第一信息用于指示调整第一配置，所述第一配置为所述终端设备在源小区下的配置。
  4. 根据权利要求3所述的方法，其特征在于，所述终端设备根据所述第一信息，确定切换类型，包括：
    在所述第一信息指示切换类型为基于双激活栈的切换的情况下，和/或，在所述第一信息指示降低所述第一配置的情况下，所述终端设备确定切换类型为基于双激活栈的切换。
  5. 根据权利要求4所述的方法，其特征在于，所述第一操作还包括调整所述第一配置，所述终端设备根据第一信息，执行第一操作，包括：
    在所述第一信息指示切换类型为基于双激活栈的切换的情况下，和/或，在所述第一信息指示所述终端设备降低所述第一配置的情况下，所述终端设备降低所述第一配置。
  6. 根据权利要求3-5中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备向所述源小区发送第二信息，所述第二信息用于指示降低所述第一配置完成。
  7. 根据权利要求6所述的方法，其特征在于，所述第二信息承载在测量报告中。
  8. 根据权利要求2-7中任一项所述的方法，其特征在于，所述第一信息承载在测量配置消息中，或所述第一信息承载在无线资源控制RRC重配置消息中。
  9. 根据权利要求1所述的方法，其特征在于，所述第一信息包括所述终端设备的能力、第一配置和第二配置，所述第一配置为所述终端设备在源小区下的配置，所述第二配置为所述终端设备在目标小区下的配置，
    所述终端设备根据第一信息，执行第一操作，包括：
    所述终端设备根据所述终端设备的能力、所述第一配置和所述第二配置，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整所述第一配置、调整所述第二配置。
  10. 根据权利要求9所述的方法，其特征在于，所述终端设备根据所述终端设备的能力、所述第一配置和所述第二配置，执行所述第一操作，包括：
    在所述第一配置和所述第二配置之和未超过所述终端设备的能力的情况下，所述终端设备确定切换类型为基于双激活栈的切换或基于非双激活栈的切换，和/或，
    在所述第一配置和所述第二配置之和超过所述终端设备的能力的情况下，所述终端设备执行以下操作中的至少一种：确定切换类型为基于非双激活栈的切换、降低所述第一配置、降低所述第二配置。
  11. 根据权利要求9或10所述的方法，其特征在于，所述第二配置承载在源小区发送的切换命令中，所述切换命令还用于指示切换类型。
  12. 根据权利要求1所述的方法，其特征在于，所述第一信息包括所述终端设备的能力、第二配置和第三配置，所述第二配置为所述终端设备在目标小区下的配置，所述第三配置为目标小区调整之后的所述终端设备在源小区下的配置，
    所述终端设备根据第一信息，执行第一操作，包括：
    所述终端设备根据所述终端设备的能力、所述第二配置和所述第三配置，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整所述第二配置、调整所述第三配置。
  13. 根据权利要求12所述的方法，其特征在于，所述终端设备根据所述终端设备的能力、所述第二配置和所述第三配置，执行所述第一操作，包括：
    在所述第二配置和所述第三配置之和未超过所述终端设备的能力的情况下，所述终端设备确定切换类型为基于双激活栈的切换或基于非双激活栈的切换，和/或，
    在所述第二配置和所述第三配置之和超过所述终端设备的能力的情况下，所述终端设备执行以下操作中的至少一种：确定切换类型为基于非双激活栈的切换、降低所述第二配置、降低所述第三配置。
  14. 根据权利要求12或13所述的方法，其特征在于，所述第二配置和所述第三配置承载在源小区发送的切换命令中，所述切换命令还用于指示切换类型。
  15. 根据权利要求2-14中任一项所述的方法，其特征在于，所述调整第一配置包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波；和/或，
    调整第二配置包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波； 和/或，
    调整第三配置包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波。
  16. 一种用于小区切换的方法，其特征在于，包括：
    源小区基于第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
  17. 根据权利要求16所述的方法，其特征在于，所述第一信息包括第一配置和终端设备的能力，所述第一配置为所述终端设备在所述源小区下的配置，所述源小区基于第一信息，执行第一操作，包括：
    所述源小区根据所述第一配置和所述终端设备的能力，确定切换类型。
  18. 根据权利要求17所述的方法，其特征在于，所述方法还包括：
    所述源小区向所述终端设备发送第一消息，所述第一消息用于所述终端设备确定切换类型和/或调整所述第一配置。
  19. 根据权利要求18所述的方法，其特征在于，所述第一消息为测量配置消息，所述测量配置消息用于指示切换类型，或，
    所述第一消息为无线资源控制RRC重配置消息，所述RRC重配置消息用于指示调整所述第一配置。
  20. 根据权利要求19所述的方法，其特征在于，所述方法还包括：
    所述源小区接收所述终端设备发送的第二信息，所述第二信息用于指示降低所述第一配置完成。
  21. 根据权利要求20所述的方法，其特征在于，所述第二信息承载在测量报告中。
  22. 根据权利要求16所述的方法，其特征在于，所述方法还包括：
    所述源小区接收目标小区发送的第二消息，所述第二消息中包括第二配置，所述第二配置为终端设备在所述目标小区下的配置，
    所述源小区基于第一信息，执行第一操作，包括：
    所述源小区根据第一配置、所述第二配置和所述终端设备的能力，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整第一配置、确定是否向所述终端设备发送切换命令。
  23. 根据权利要求22所述的方法，其特征在于，所述源小区根据第一配置、第二配置和终端设备的能力，执行所述第一操作，包括：
    在所述第一配置和所述第二配置之和未超过所述终端设备的能力的情况下，所述源小区确定切换类型为基于双激活栈的切换、或确定切换类型为基于非双激活栈的切换，和/或，
    在所述第一配置和所述第二配置之和超过所述终端设备的能力的情况下，所述源小区不向所述终端设备发送切换命令、或降低所述第一配置、或确定切换类型为基于非双激活栈的切换。
  24. 根据权利要求16所述的方法，其特征在于，所述方法还包括：
    所述源小区接收目标小区发送的第三消息，所述第三消息中包括第二配置和第三配置，所述第二配置为终端设备在所述目标小区下的配置，所述第三配置为所述目标小区调整之后的所述终端设备在所述源小区下的配置，
    所述源小区基于第一信息，执行第一操作，包括：
    所述源小区根据所述第二配置、所述第三配置和终端设备的能力，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整第三配置、确定是否向所述终端设备发送切换命令。
  25. 根据权利要求24所述的方法，其特征在于，所述源小区根据所述第二配置、所述第三配置和终端设备的能力，执行所述第一操作，包括：
    在所述第二配置和所述第三配置之和未超过所述终端设备的能力的情况下，所述源小区确定切换类型为基于双激活栈的切换、或确定切换类型为基于非双激活栈的切换，和/或，
    在所述第二配置和所述第三配置之和超过所述终端设备的能力的情况下，所述源小区不向所述终端设备发送切换命令、或降低所述第三配置、或确定切换类型为基于非双激活栈的切换。
  26. 根据权利要求22-25中任一项所述的方法，其特征在于，第二消息和/或第三消息为切换命令。
  27. 根据权利要求22-26中任一项所述的方法，其特征在于，所述方法还包括：
    所述源小区向所述目标小区发送切换请求消息，所述切换请求消息中包括所述终端设备的能力、以及第一配置。
  28. 根据权利要求27所述的方法，其特征在于，所述目标小区包括至少一个候选目标小区，所述方法还包括：
    所述源小区根据所述至少一个候选目标小区发送的第二配置，选择用于切换的候选目标小区。
  29. 一种用于小区切换的方法，其特征在于，包括：
    目标小区根据第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激 活栈的切换和基于非双激活栈的切换。
  30. 根据权利要求29所述的方法，其特征在于，所述第一信息包括终端设备的能力和第一配置，所述第一配置为所述终端设备在源小区下的配置，所述目标小区根据第一信息，执行第一操作，包括：
    在所述目标小区支持基于双激活栈切换的情况下，所述目标小区根据所述终端设备的能力和所述第一配置，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、确定第二配置、确定第三配置，所述第二配置为所述终端设备在所述目标小区下的配置，所述第三配置为所述目标小区调整之后的所述终端设备在所述源小区下的配置。
  31. 根据权利要求30所述的方法，其特征在于，所述目标小区根据所述终端设备的能力和所述第一配置，执行所述第一操作，包括：
    所述目标小区根据所述终端设备的能力和所述第一配置，确定所述第二配置，使得所述第一配置和所述第二配置之和不超过所述终端设备的能力。
  32. 根据权利要求31所述的方法，其特征在于，所述方法还包括：
    所述目标小区向所述源小区发送第一消息，所述第一消息中包括所述第二配置。
  33. 根据权利要求30所述的方法，其特征在于，所述目标小区根据所述终端设备的能力和所述第一配置，执行所述第一操作，包括：
    所述目标小区根据所述终端设备的能力和所述第一配置，确定所述第二配置和所述第三配置，使得所述第二配置和所述第三配置之和不超过所述终端设备的能力。
  34. 根据权利要求33所述的方法，其特征在于，所述方法还包括：
    所述目标小区向所述源小区发送第二消息，所述第二消息中包括所述第二配置和所述第三配置。
  35. 根据权利要求32或34所述的方法，其特征在于，第一消息和/或第二消息为切换命令。
  36. 根据权利要求30-35中任一项所述的方法，其特征在于，所述方法还包括：
    所述目标小区接收所述源小区发送的切换请求消息，所述切换请求消息中包括所述终端设备的能力和所述第一配置。
  37. 根据权利要求36所述的方法，其特征在于，所述切换请求消息用于指示切换类型为基于双激活栈的切换。
  38. 根据权利要求29所述的方法，其特征在于，所述第一信息为所述目标小区支持的切换类型，
    所述目标小区根据第一信息，执行第一操作，包括：
    在所述目标小区不支持基于双激活栈的切换的情况下，所述目标小区确定切换类型为基于非双激活栈的切换，或向源小区发送切换请求拒绝消息。
  39. 根据权利要求38所述的方法，其特征在于，所述方法还包括：
    在目标小区确定切换类型为基于非双激活栈的切换的情况下，所述目标小区向所述源小区发送切换命令，所述切换命令中包括第二配置，所述第二配置是基于终端设备的全部能力确定的。
  40. 一种终端设备，其特征在于，包括：
    处理单元，用于根据第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
  41. 根据权利要求40所述的终端设备，其特征在于，所述处理单元用于：
    根据所述第一信息，确定切换类型。
  42. 根据权利要求41所述的终端设备，其特征在于，所述第一信息用于指示切换类型，和/或，所述第一信息用于指示调整第一配置，所述第一配置为所述终端设备在源小区下的配置。
  43. 根据权利要求42所述的终端设备，其特征在于，所述处理单元用于：
    在所述第一信息指示切换类型为基于双激活栈的切换的情况下，和/或，在所述第一信息指示降低所述第一配置的情况下，确定切换类型为基于双激活栈的切换。
  44. 根据权利要求43所述的终端设备，其特征在于，所述处理单元用于：
    在所述第一信息指示切换类型为基于双激活栈的切换的情况下，和/或，在所述第一信息指示所述终端设备降低所述第一配置的情况下，降低所述第一配置。
  45. 根据权利要求42-44中任一项所述的终端设备，其特征在于，所述终端设备还包括通信单元，用于：
    向所述源小区发送第二信息，所述第二信息用于指示降低所述第一配置完成。
  46. 根据权利要求45所述的终端设备，其特征在于，所述第二信息承载在测量报告中。
  47. 根据权利要求41-46中任一项所述的终端设备，其特征在于，所述第一信息承载在测量配置消息中，或所述第一信息承载在无线资源控制RRC重配置消息中。
  48. 根据权利要求40所述的终端设备，其特征在于，所述第一信息包括所述终端设备的能力、第 一配置和第二配置，所述第一配置为所述终端设备在源小区下的配置，所述第二配置为所述终端设备在目标小区下的配置，
    所述处理单元用于：
    根据所述终端设备的能力、所述第一配置和所述第二配置，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整所述第一配置、调整所述第二配置。
  49. 根据权利要求48所述的终端设备，其特征在于，所述处理单元用于：
    在所述第一配置和所述第二配置之和未超过所述终端设备的能力的情况下，确定切换类型为基于双激活栈的切换或基于非双激活栈的切换，和/或，
    在所述第一配置和所述第二配置之和超过所述终端设备的能力的情况下，执行以下操作中的至少一种：确定切换类型为基于非双激活栈的切换、降低所述第一配置、降低所述第二配置。
  50. 根据权利要求48或49所述的终端设备，其特征在于，所述第二配置承载在源小区发送的切换命令中，所述切换命令还用于指示切换类型。
  51. 根据权利要求40所述的终端设备，其特征在于，所述第一信息包括所述终端设备的能力、第二配置和第三配置，所述第二配置为所述终端设备在目标小区下的配置，所述第三配置为目标小区调整之后的所述终端设备在源小区下的配置，
    所述处理单元用于：
    根据所述终端设备的能力、所述第二配置和所述第三配置，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整所述第二配置、调整所述第三配置。
  52. 根据权利要求51所述的终端设备，其特征在于，所述处理单元用于：
    在所述第二配置和所述第三配置之和未超过所述终端设备的能力的情况下，确定切换类型为基于双激活栈的切换或基于非双激活栈的切换，和/或，
    在所述第二配置和所述第三配置之和超过所述终端设备的能力的情况下，执行以下操作中的至少一种：确定切换类型为基于非双激活栈的切换、降低所述第二配置、降低所述第三配置。
  53. 根据权利要求51或52所述的终端设备，其特征在于，所述第二配置和所述第三配置承载在源小区发送的切换命令中，所述切换命令还用于指示切换类型。
  54. 根据权利要求41-53中任一项所述的终端设备，其特征在于，所述调整第一配置包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波；和/或，
    调整第二配置包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波；和/或，
    调整第三配置包括以下中的至少一种：删除双连接中的辅小区、去激活或释放载波聚合中的辅载波。
  55. 一种网络设备，其特征在于，所述网络设备为源小区，包括：
    处理单元，用于基于第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
  56. 根据权利要求55所述的网络设备，其特征在于，所述第一信息包括第一配置和终端设备的能力，所述第一配置为所述终端设备在所述源小区下的配置，所述处理单元用于：
    根据所述第一配置和所述终端设备的能力，确定切换类型。
  57. 根据权利要求56所述的网络设备，其特征在于，所述网络设备还包括通信单元，用于：
    向所述终端设备发送第一消息，所述第一消息用于所述终端设备确定切换类型和/或调整所述第一配置。
  58. 根据权利要求57所述的网络设备，其特征在于，所述第一消息为测量配置消息，所述测量配置消息用于指示切换类型，或，
    所述第一消息为无线资源控制RRC重配置消息，所述RRC重配置消息用于指示调整所述第一配置。
  59. 根据权利要求58所述的网络设备，其特征在于，所述网络设备还包括通信单元，用于：
    接收所述终端设备发送的第二信息，所述第二信息用于指示降低所述第一配置完成。
  60. 根据权利要求59所述的网络设备，其特征在于，所述第二信息承载在测量报告中。
  61. 根据权利要求55所述的网络设备，其特征在于，所述网络设备还包括通信单元，用于：
    接收目标小区发送的第二消息，所述第二消息中包括第二配置，所述第二配置为终端设备在所述目标小区下的配置，
    所述处理单元用于：
    根据第一配置、所述第二配置和所述终端设备的能力，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整第一配置、确定是否向所述终端设备发送切换命令。
  62. 根据权利要求61所述的网络设备，其特征在于，所述处理单元用于：
    在所述第一配置和所述第二配置之和未超过所述终端设备的能力的情况下，确定切换类型为基于双激活栈的切换、或确定切换类型为基于非双激活栈的切换，和/或，
    在所述第一配置和所述第二配置之和超过所述终端设备的能力的情况下，不向所述终端设备发送切换命令、或降低所述第一配置、或确定切换类型为基于非双激活栈的切换。
  63. 根据权利要求55所述的网络设备，其特征在于，所述网络设备还包括通信单元，用于：
    接收目标小区发送的第三消息，所述第三消息中包括第二配置和第三配置，所述第二配置为终端设备在所述目标小区下的配置，所述第三配置为所述目标小区调整之后的所述终端设备在所述源小区下的配置，
    所述处理单元用于：
    根据所述第二配置、所述第三配置和终端设备的能力，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、调整第三配置、确定是否向所述终端设备发送切换命令。
  64. 根据权利要求63所述的网络设备，其特征在于，所述处理单元用于：
    在所述第二配置和所述第三配置之和未超过所述终端设备的能力的情况下，确定切换类型为基于双激活栈的切换、或确定切换类型为基于非双激活栈的切换，和/或，
    在所述第二配置和所述第三配置之和超过所述终端设备的能力的情况下，不向所述终端设备发送切换命令、或降低所述第三配置、或确定切换类型为基于非双激活栈的切换。
  65. 根据权利要求61-64中任一项所述的网络设备，其特征在于，第二消息和/或第三消息为切换命令。
  66. 根据权利要求61-65中任一项所述的网络设备，其特征在于，所述网络设备还包括通信单元，用于：
    向所述目标小区发送切换请求消息，所述切换请求消息中包括所述终端设备的能力、以及第一配置。
  67. 根据权利要求66所述的网络设备，其特征在于，所述目标小区包括至少一个候选目标小区，所述网络设备还包括通信单元，用于：
    根据所述至少一个候选目标小区发送的第二配置，选择用于切换的候选目标小区。
  68. 一种网络设备，其特征在于，所述网络设备为目标小区，包括：
    处理单元，用于根据第一信息，执行第一操作，所述第一操作用于小区切换，所述小区切换包括基于双激活栈的切换和基于非双激活栈的切换。
  69. 根据权利要求68所述的网络设备，其特征在于，所述第一信息包括终端设备的能力和第一配置，所述第一配置为所述终端设备在源小区下的配置，所述处理单元用于：
    在所述目标小区支持基于双激活栈切换的情况下，根据所述终端设备的能力和所述第一配置，执行所述第一操作，所述第一操作包括以下中的至少一种：确定切换类型、确定第二配置、确定第三配置，所述第二配置为所述终端设备在所述目标小区下的配置，所述第三配置为所述目标小区调整之后的所述终端设备在所述源小区下的配置。
  70. 根据权利要求69所述的网络设备，其特征在于，所述处理单元用于：
    根据所述终端设备的能力和所述第一配置，确定所述第二配置，使得所述第一配置和所述第二配置之和不超过所述终端设备的能力。
  71. 根据权利要求70所述的网络设备，其特征在于，所述网络设备还包括通信单元，用于：
    向所述源小区发送第一消息，所述第一消息中包括所述第二配置。
  72. 根据权利要求69所述的网络设备，其特征在于，所述处理单元用于：
    根据所述终端设备的能力和所述第一配置，确定所述第二配置和所述第三配置，使得所述第二配置和所述第三配置之和不超过所述终端设备的能力。
  73. 根据权利要求72所述的网络设备，其特征在于，所述网络设备还包括通信单元，用于：
    向所述源小区发送第二消息，所述第二消息中包括所述第二配置和所述第三配置。
  74. 根据权利要求71或73所述的网络设备，其特征在于，第一消息和/或第二消息为切换命令。
  75. 根据权利要求69-74中任一项所述的网络设备，其特征在于，所述网络设备还包括通信单元，用于：
    接收所述源小区发送的切换请求消息，所述切换请求消息中包括所述终端设备的能力和所述第一配置。
  76. 根据权利要求75所述的网络设备，其特征在于，所述切换请求消息用于指示切换类型为基于双激活栈的切换。
  77. 根据权利要求68所述的网络设备，其特征在于，所述第一信息为所述目标小区支持的切换类 型，
    所述处理单元用于：
    在所述目标小区不支持基于双激活栈的切换的情况下，确定切换类型为基于非双激活栈的切换，或向源小区发送切换请求拒绝消息。
  78. 根据权利要求77所述的网络设备，其特征在于，所述网络设备还包括通信单元，用于：
    在目标小区确定切换类型为基于非双激活栈的切换的情况下，向所述源小区发送切换命令，所述切换命令中包括第二配置，所述第二配置是基于终端设备的全部能力确定的。
  79. 一种终端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至15中任一项所述的方法。
  80. 一种网络设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求16至28中任一项所述的方法。
  81. 一种网络设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求29至39中任一项所述的方法。
  82. 一种装置，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述装置的设备执行如权利要求1至15中任一项所述的方法。
  83. 一种装置，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述装置的设备执行如权利要求16至28中任一项所述的方法。
  84. 一种装置，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述装置的设备执行如权利要求29至39中任一项所述的方法。
  85. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至15中任一项所述的方法。
  86. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求16至28中任一项所述的方法。
  87. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求29至39中任一项所述的方法。
  88. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至15中任一项所述的方法。
  89. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求16至28中任一项所述的方法。
  90. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求29至39中任一项所述的方法。
  91. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至15中任一项所述的方法。
  92. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求16至28中任一项所述的方法。
  93. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求29至39中任一项所述的方法。
  94. 一种通信系统，其特征在于，包括如权利要求40至54中任一项所述的终端设备。
  95. 一种通信系统，其特征在于，包括如权利要求55至67中任一项所述的网络设备。
  96. 一种通信系统，其特征在于，包括如权利要求68至78中任一项所述的网络设备。
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