WO2019137409A1 - 一种切换方法、终端设备和网络设备 - Google Patents

一种切换方法、终端设备和网络设备 Download PDF

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Publication number
WO2019137409A1
WO2019137409A1 PCT/CN2019/071068 CN2019071068W WO2019137409A1 WO 2019137409 A1 WO2019137409 A1 WO 2019137409A1 CN 2019071068 W CN2019071068 W CN 2019071068W WO 2019137409 A1 WO2019137409 A1 WO 2019137409A1
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WIPO (PCT)
Prior art keywords
threshold
terminal device
network device
measurement report
handover
Prior art date
Application number
PCT/CN2019/071068
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English (en)
French (fr)
Inventor
赵保强
常俊仁
张向东
Original Assignee
华为技术有限公司
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19738620.4A priority Critical patent/EP3720173A4/en
Publication of WO2019137409A1 publication Critical patent/WO2019137409A1/zh
Priority to US16/925,106 priority patent/US20200344654A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0094—Definition of hand-off measurement parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/249—Reselection being triggered by specific parameters according to timing information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/36—Reselection control by user or terminal equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/36—Reselection control by user or terminal equipment
    • H04W36/362—Conditional handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00838—Resource reservation for handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/324—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by mobility data, e.g. speed data

Definitions

  • the present application relates to the field of communications, and more particularly, to a handover method, a terminal device, and a network device.
  • Handover refers to the process of transferring a wireless connection link of a communication from one cell to another in the process of ensuring uninterrupted communication in the process of mobile communication.
  • the terminal device sends a measurement report to the current cell to convert it. Go to another base station to ensure normal communication.
  • the serving base station sends a handover request message to the target base station, and the target base station returns a handover request response message and reserves for the terminal device.
  • the resource the serving base station sends a conditional handover command to the terminal device. Since the terminal device moves slowly or statically, the handover condition is not satisfied for a long time, and the terminal device discards the conditional handover command after the timer expires. At this time, the cell quality meets the trigger threshold of the measurement report, so the terminal device sends a measurement report to the serving base station, and the condition switching preparation process is repeated. Each time the above steps are repeated, two air interface messages and two Xn messages are triggered, and the target cell always reserves resources for the terminal device, which causes a very large system resource waste.
  • the present application provides a handover method, a terminal device, and a network device.
  • the terminal device can select or update a threshold value for triggering a measurement report according to the threshold configuration information, thereby helping the terminal device to continuously trigger the measurement report, thereby reducing the terminal device.
  • System overhead is a threshold value for triggering a measurement report according to the threshold configuration information.
  • the first aspect provides a handover method, where the handover method includes determining, by the terminal device, a first measurement report trigger threshold according to the threshold configuration information, where the threshold configuration information includes the first information or the threshold update information.
  • the first information includes at least one cell quality change rate threshold value and at least two measurement report trigger threshold values; the terminal device sends the first measurement report to the first network device according to the first measurement report trigger threshold value.
  • the terminal device receives a first handover command from the first network device, where the first handover command is used to instruct the terminal device to switch from the first network device to the second network device.
  • the threshold update information is a fourth measurement report trigger threshold or a threshold change step.
  • the at least one cell quality change rate threshold in the first information is predefined by a protocol.
  • the terminal device may select or update the threshold value of the trigger measurement report according to the threshold configuration information, which helps prevent the terminal device from continuously triggering the measurement report, thereby reducing the system overhead of the terminal device.
  • the threshold value configuration information includes the first information
  • the method further includes: the terminal device receiving a measurement control message from the first network device
  • the measurement control message includes the first information
  • the terminal device determines the first measurement report trigger threshold according to the threshold configuration information, including: the terminal device determines, according to the cell quality change rate and the first information,
  • the first measurement report triggers a threshold.
  • the handover method of the embodiment of the present application helps to prevent the terminal device from continuously triggering the measurement report by carrying the first information in the measurement control message, thereby reducing the system overhead of the terminal device.
  • the threshold value configuration information includes the first information
  • the method further includes: the terminal device receiving a second handover from the first network device And the second switching command includes the second switching condition and the first information, where the terminal device determines, according to the threshold configuration information, the first measurement report trigger threshold, including: the terminal device within a predetermined time The second handover condition is not met, and the terminal device determines the first measurement report trigger threshold according to the cell quality change rate and the first information.
  • the method before the terminal device receives the second handover command from the first network device, the method further includes: receiving, by the terminal device, a measurement control message from the first network device, where the measurement control The message includes a second threshold configuration information; the terminal device sends a second measurement report to the first network node according to the second threshold configuration information; wherein the terminal device receives the first network device
  • the second switching command includes: the terminal device receiving the second switching command sent by the first network device according to the second measurement report.
  • the handover method in the embodiment of the present application helps to prevent the terminal device from continuously triggering the measurement report by carrying the first information in the handover command, thereby reducing the system overhead of the terminal device.
  • the terminal device determines, according to the cell quality change rate and the first information, the first measurement report trigger threshold, including: the terminal device according to the cell a quality change rate and the at least one cell quality change rate threshold value, determining a first cell quality change rate threshold value; the terminal device triggering a gate from the at least two measurement reports according to the first cell mass change rate threshold value
  • the first measurement report trigger threshold is determined in the limit value.
  • the terminal device selects an appropriate measurement report trigger threshold from at least two measurement report trigger thresholds by using the cell quality change rate and the first information, which helps prevent the terminal device from continuously triggering.
  • the measurement report reduces the overhead of the terminal device.
  • the threshold configuration information includes threshold update information
  • the method further includes: the terminal device receiving the third from the first network device a switching command, the third switching command includes a third switching condition and the threshold update information, where the terminal device determines, according to the threshold configuration information, a first measurement report trigger threshold, including: within a predetermined time, The terminal device does not meet the third handover condition, and the terminal device determines the first measurement report trigger threshold according to the threshold update information.
  • the method before the terminal device receives the third handover command from the first network device, the method further includes: receiving, by the terminal device, a measurement control message sent by the first network device, where the measurement control message includes The third measurement report triggers a threshold value; the terminal device sends a third measurement report to the first network device according to the third measurement report trigger threshold value, where the terminal device receives the first measurement device from the first network device
  • the third switching command includes: receiving, by the terminal device, the third switching command that is sent by the first network device according to the third measurement report.
  • the handover method in the embodiment of the present application helps to prevent the terminal device from continuously triggering the measurement report by carrying the threshold update information in the handover command, thereby reducing the system overhead of the terminal device.
  • the threshold value configuration information includes threshold value update information
  • the method further includes: receiving, by the terminal device, measurement control from the first network device a message, the measurement control message includes a third measurement report trigger threshold and the threshold update information; the terminal device sends a third measurement report to the first network device according to the third measurement report trigger threshold; Receiving, by the terminal device, a third handover command from the first network device, where the third handover command includes a third handover condition, where the terminal device determines, according to the threshold configuration information, a first measurement report trigger threshold, including The terminal device does not satisfy the third handover condition within a predetermined time, and the terminal device determines the first measurement report trigger threshold according to the threshold update information.
  • the handover method in the embodiment of the present application helps to prevent the terminal device from continuously triggering the measurement report by carrying the threshold update information in the measurement control message, thereby reducing the system overhead of the terminal device.
  • the threshold update information is a fourth measurement report trigger threshold
  • the terminal device determines the first measurement according to the threshold update information. Reporting the trigger threshold, including: the terminal device does not satisfy the third switching condition within a predetermined time; after the predetermined time, the terminal device determines the fourth measurement report trigger threshold as the first measurement report trigger Threshold.
  • the threshold update information is a threshold change step.
  • the cell quality change rate threshold value includes a neighbor cell quality change rate threshold, a serving cell quality change rate threshold, the neighbor cell, and the At least one of a rate of change threshold of the serving cell quality deviation.
  • the measurement report trigger threshold includes a neighbor cell quality threshold, a serving cell quality threshold, and a quality deviation between the neighboring cell and the serving cell. At least one of the threshold values.
  • a handover method includes: receiving, by a terminal device, a first measurement control message from a first network device, where the first measurement control message includes a first measurement report trigger threshold; the terminal The device sends a first measurement report to the first network device according to the first measurement report trigger threshold; the terminal device receives a first handover command from the first network device, where the first handover command includes a first handover condition After the second predetermined time, the terminal device sends a second measurement report to the first network device according to the first measurement report trigger threshold.
  • the first predetermined time is the timer 1
  • the second predetermined time is the timer 2.
  • the terminal device After receiving the first switching command from the first network device, the terminal device starts the timer 1 at the timing. The terminal device does not satisfy the first switching condition during the operation of the device 1; after the timer 1 expires, the timer 2 is started. During the operation of the timer 2, the terminal device does not trigger the measurement report. After the timer 2 times out, the terminal device according to the The first measurement report triggers a threshold, and sends a second measurement report to the first network device.
  • the first switching command includes the timer 1 and the timer 2.
  • the switching method of the embodiment of the present application helps to prevent the terminal device from continuously triggering the measurement report by adding the timer 2, thereby reducing the system overhead of the terminal device.
  • a handover method where the first network device sends threshold configuration information to the terminal device, where the threshold configuration information is used by the terminal device to determine a first measurement report trigger threshold, the The limit configuration information includes first information or threshold update information, where the first information includes at least one cell quality change rate threshold and the at least two measurement report trigger thresholds; the first network device receives the a first measurement report of the terminal device; the first network device sends a first handover command to the terminal device according to the first measurement report, where the first handover command is used to indicate that the terminal device switches from the first network device to the first Two network devices.
  • the first network device sends the threshold value configuration information to the terminal device, where the first network device sends a measurement control message to the terminal device, where The measurement control message includes the threshold configuration information.
  • the method further includes: the first network device sends a measurement control message to the terminal device, where the measurement control message includes a second cell quality threshold;
  • the first network device receives the second measurement report from the terminal device, where the first network device sends the threshold value configuration information to the terminal device, including: the first network device, according to the second measurement report, to the terminal
  • the device sends a second handover command, where the second handover command includes the threshold configuration information.
  • the first network device sends a second handover command to the terminal device according to the second measurement report, including: the first network device according to the second a measurement report, sending a handover request message to the second network device; the first network device receiving a handover request response message from the second network device, where the handover request response message includes the threshold configuration information; the first network The device sends the second handover command to the terminal device according to the handover request response message.
  • the first network device sends a second handover command to the terminal device according to the second measurement report, including: the first network device according to the second Receiving a handover request message to the second network device; the first network device receives a handover request response message from the second network device; the first network device sends the handover request response message to the terminal device according to the handover request message The second switching command.
  • the first network device sends a second handover command to the terminal device according to the second measurement report, including: the first network device according to the second a measurement report, sending a handover request message to the second network device, where the handover request message includes the threshold configuration information; the first network device receives a handover request response message from the second network device, the handover request response message The threshold value configuration information is included; the first network device sends the second handover command to the terminal device according to the handover request response message.
  • a terminal device for performing the method of the first aspect or any possible implementation of the first aspect.
  • the terminal device comprises means for performing the method of any of the above-mentioned first aspect or any of the possible implementations of the first aspect.
  • a terminal device for performing the method in any of the possible implementations of the second aspect or the second aspect.
  • the terminal device comprises means for performing the method of any of the possible implementations of the second aspect or the second aspect described above.
  • a network device for performing the method in any of the possible implementations of the third aspect or the third aspect.
  • the network device comprises means for performing the method of any of the possible implementations of the third or third aspect above.
  • a terminal device comprising a memory, a transceiver, and at least one processor, the memory, the transceiver, and the at least one processor being interconnected by a line, the transceiver for performing And the method of any one of the possible implementations of the first aspect, the operation of the message transmission and reception performed by the terminal device; the at least one processor invoking the instruction stored in the memory, executing The processing operations performed by the terminal device in the method of any of the first aspect and any one of the possible implementations of the first aspect.
  • a terminal device comprising a memory, a transceiver, and at least one processor, the memory, the transceiver, and the at least one processor being interconnected by a line, the transceiver for performing And the method of any one of the possible implementations of the second aspect, wherein the at least one processor invokes the instruction stored in the memory, and performs The processing operation performed by the terminal device in the method in any one of the second aspect and the second possible aspect of the second aspect.
  • a network device comprising a memory, a transceiver, and at least one processor, the memory, the transceiver, and the at least one processor being interconnected by a line, the transceiver for performing And the method of any one of the possible implementations of the third aspect, wherein the at least one processor invokes the instruction stored in the memory, and performs The processing operations performed by the network device in the method of any of the third aspect and any one of the possible implementations of the third aspect.
  • a tenth aspect provides a chip system, which is applied to a terminal device, where the chip system includes: at least one processor, at least one memory, and an interface circuit, wherein the interface circuit is responsible for information interaction between the chip system and the outside world.
  • Said at least one memory, said interface circuit and said at least one processor being interconnected by a line, said at least one memory storing instructions; said instructions being executed by said at least one processor to perform said aspect of said various aspects The operation of the terminal device in the method.
  • a chip system for use in a network device, the chip system comprising: at least one processor, at least one memory, and an interface circuit, wherein the interface circuit is responsible for information interaction between the chip system and the outside world,
  • the at least one memory, the interface circuit, and the at least one processor are interconnected by a line, the at least one memory storing instructions; the instructions being executed by the at least one processor to perform the various aspects described above The operation of the network device in the method described.
  • a communication system including: a network device, and/or a terminal device; wherein the terminal device is the terminal device described in each aspect, and the network device is in the foregoing aspects.
  • Network equipment
  • a thirteenth aspect a computer program product for use in a terminal device, the computer program product comprising a series of instructions, when the instructions are executed, to perform the method of the above aspects The operation of the terminal device.
  • a computer program product for use in a network device, the computer program product comprising a series of instructions, when the instructions are executed, to perform the method of the above aspects The operation of the network device.
  • a computer readable storage medium is provided, the instructions being stored in a computer readable storage medium, when executed on a computer, causing the computer to perform the method of the various aspects described above.
  • FIG. 1 is a schematic diagram of a scenario in which the technical solution of the embodiment of the present application is applied.
  • FIG. 2 is a schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 3 is another schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 4 is still another schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of determining a measurement report trigger threshold value according to an embodiment of the present application.
  • Figure 6 is a schematic diagram of determining a measurement report trigger threshold.
  • FIG. 7 is still another schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 8 is still another schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 9 is still another schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 10 is still another schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 11 is still another schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 12 is still another schematic flowchart of a handover method according to an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 14 is another schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 15 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 16 is another schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 17 is still another schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 18 is still another schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 19 is still another schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 20 is still another schematic block diagram of a network device according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the terminal device in the embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or User device.
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network device in the embodiment of the present application may be a device for communicating with the terminal device, and the network device may be a Global System of Mobile communication (GSM) system or Code Division Multiple Access (CDMA).
  • Base Transceiver Station which may also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station in an LTE system (Evolutional The NodeB, eNB or eNodeB) may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a future.
  • the network device in the 5G network or the network device in the PLMN network in the future is not limited in this embodiment.
  • FIG. 1 is a schematic diagram showing a scenario of application of a technical solution according to an embodiment of the present application.
  • a terminal device is connected to a first network device, and since the terminal device moves to the second network device, Switching from the first network device to the second network device.
  • the first network device may be a serving base station or a source base station in actual situations, and the second network device may be a target base station.
  • FIG. 2 is a schematic flowchart of a handover method 100 according to an embodiment of the present application.
  • the terminal device may be the terminal device in FIG. 1
  • the first network device may be the first in FIG. 1
  • a network device, which may be the second network device in FIG. 1, the method 100 includes:
  • the terminal device determines, according to the threshold configuration information, a first measurement report trigger threshold, where the threshold configuration information includes first information or threshold update information, where the first information includes at least one cell quality change rate gate.
  • the limit and at least two measurement reports trigger thresholds.
  • the terminal device may receive the threshold configuration information sent by the first network device, where the threshold configuration information is used by the terminal device to determine a first measurement report trigger threshold, and the terminal device according to the threshold
  • the configuration information determines a first measurement report trigger threshold, where the threshold configuration information may be first information or threshold update information, where the first information includes at least one cell quality change rate threshold and at least two measurement reports Trigger threshold.
  • the threshold update information may be a measurement report trigger threshold or a threshold change step.
  • the threshold configuration information may be configured in a measurement report message sent by the first network device to the terminal device; and may also be configured in a handover command sent by the first network device to the terminal device before the handover method 100, where In this case, the handover method 100 may use the threshold configuration information configured by the first network device through the handover command in the previous handover, thereby determining the first measurement report trigger threshold in the handover method 100.
  • the first network device may select one of the following events as a measurement report trigger event:
  • the quality of the neighboring cell is better than the quality of the serving cell (A3 event, A6 event);
  • the quality of the serving cell is worse than the threshold a, and the quality of the neighboring cell is better than the threshold b (A5 event).
  • the first network device sets a set of threshold values for the trigger events used in the measurement configuration. If the triggering event involves only the quality of one cell (eg, A2 event and A4 event), or the triggering event involves the quality deviation values of two cells (such as A3 event, A6 event), only one threshold is included in a set of thresholds. Value; if the triggering event involves the quality of two cells (such as the A5 event), a set of thresholds contains two thresholds. A measurement report is triggered when the terminal device measurement meets the configured event threshold.
  • the terminal device sends a first measurement report to the first network device according to the first measurement report trigger threshold, where the first network device receives the first measurement report sent by the terminal device.
  • the terminal device performs measurement on the serving cell and/or the neighboring cell according to the measurement configuration, and determines whether the condition of the measurement report trigger is met.
  • the terminal device is to the first network device. Send the first measurement report.
  • the first network device sends a first handover command to the terminal device according to the first measurement report, where the terminal device receives the first handover command sent by the first network device according to the first measurement report, the first handover The command includes a first switching condition.
  • FIG. 3 is another schematic flowchart of a handover method 100 according to an embodiment of the present application.
  • the S130 receives the first handover command sent by the first network device according to the first measurement report. ,include:
  • the first network device determines, according to the first measurement report, whether to switch the terminal device.
  • the first network device may make a handover decision based on the first measurement report and the radio resource management information.
  • the first network device sends a handover request message to the second network device, where the second network device receives the handover request message sent by the first network device.
  • the first network device sends a handover request message to the second network device, and carries necessary information to the second network device for handover preparation.
  • the necessary information includes: a target cell ID, a KgNB*, and a Radio Resource Control (RRC) context information, including a cell radio network temporary identifier of the terminal device in the first network device (Cell Radio Network Temporary) Identifier, C-RNTI), access layer configuration information (excluding physical layer configuration information), etc.
  • RRC Radio Resource Control
  • the second network device performs admission control according to the handover request message.
  • the first network device may send the handover request message to multiple second network devices, and the multiple second network devices perform admission control.
  • the second network device sends a handover request response message to the first network device, where the first network device receives the handover request response message sent by the second network device.
  • the second network device sends a handover request acknowledgement message to the first network device, where the handover request response message includes a transparent container, and the transparent container is sent to the terminal device as part of the handover command.
  • the transparent container contains a new C-RNTI
  • the second network device is used to select the security algorithm identifier of the security algorithm, and may also include a dedicated random access preamble sequence (Preamble) and an indication of the termination time of the dedicated Preamble.
  • Preamble dedicated random access preamble sequence
  • some other parameters such as system information blocks, can also be included.
  • the first network device sends a first handover command to the terminal device according to the handover request response message, where the terminal device receives the first handover command sent by the first network device, where the first handover command includes the first handover condition.
  • the first network device sends a first handover command to the terminal device, where the first handover command includes a transparent container.
  • the first network device performs the necessary encryption and integrity protection operations on the handover command.
  • the terminal device receives the necessary information (the necessary information includes: a new C-RNTI, a security algorithm identifier of the second network device, optionally, a dedicated random access Preamble and a dedicated Preamble)
  • the switching command of the termination time, and the system information block of the second network device, etc. is sent by the first network device to the terminal device.
  • the first switching command may further include a timer 1, where the timer 1 is used to indicate the effective time of the first switching command, and after receiving the first switching command, the terminal device does not immediately perform the switching process. Instead, start Timer 1 and evaluate if the switching conditions are met.
  • the terminal device performs handover of the terminal device according to the first handover condition, where the handover is a handover from the first network device to the second network device.
  • the terminal device determines whether the terminal device meets the first handover condition, and if the terminal device meets the first handover condition, performs handover of the first terminal device, where the handover is from the first network device to Switching of the second network device.
  • the first network device carries a fixed cell quality threshold in the measurement control message, and the switching condition is not satisfied for a long time at the cell edge at a low speed or static terminal device, in the timer After the timeout expires, the terminal device discards the conditional switching command. The cell quality meets the triggering threshold of the measurement report. Therefore, the terminal device sends a measurement report to the serving base station. The conditional switching preparation process is repeated, which causes a large amount of signaling overhead. At the same time, the second network device pre-predicts the terminal device. Retaining resources brings a huge waste of system resources.
  • the terminal device may select or update the threshold value of the trigger measurement report according to the threshold configuration information, which helps prevent the terminal device from continuously triggering the measurement report, thereby reducing the system overhead of the terminal device.
  • FIG. 4 is a schematic flowchart of a handover method 200 according to an embodiment of the present application.
  • the terminal device may be the terminal device in FIG. 1
  • the first network device may be the first in FIG. 1
  • a network device, which may be the second network device in FIG. 1, the method 200 includes:
  • the first network device sends a measurement control message to the terminal device, where the terminal device receives the measurement control message sent by the first network device, where the measurement control message includes the first information;
  • S220 The terminal device determines the first measurement report trigger threshold according to the cell quality change rate and the first information.
  • the first network device may configure the measurement process of the terminal device according to the roaming and access restriction information, including at least one of a measurement object (the quality of the neighboring cell, the quality of the serving cell, and the quality of the neighboring cell and the quality of the serving cell).
  • the first information includes at least one cell quality change rate threshold value and at least two measurement report trigger threshold values, and the terminal device determines the first measurement according to the cell quality change rate and the first information. Report the trigger threshold.
  • FIG. 5 illustrates a schematic diagram of determining a measurement report trigger threshold value in accordance with an embodiment of the present application.
  • the method for selecting the first measurement report trigger threshold is as follows:
  • the first network device configures n sets of measurement report trigger thresholds in the first information: a measurement report trigger threshold value 1, a measurement report trigger threshold value 2, ..., and a measurement report trigger threshold value n.
  • the first network device configures the associated n-1 cell quality change rate thresholds in the first information: a cell quality change rate threshold value 1, a cell quality change rate threshold value 2, ..., a cell quality
  • the rate of change threshold is n-1.
  • the terminal device determines, according to the cell quality change rate and the first information, the first measurement report trigger threshold, including:
  • a first cell quality change rate threshold according to a cell quality change rate and the at least one cell quality change rate threshold
  • the terminal device determines the first measurement report trigger threshold from the at least two measurement report trigger thresholds according to the first cell quality change rate threshold.
  • the corresponding measurement report trigger threshold is selected according to the cell quality change rate k.
  • the measurement report trigger threshold value 1 is used;
  • the measurement report trigger threshold value 2 is used;
  • the measurement report trigger threshold n is used.
  • the quality of the neighboring cell is better than the quality of the serving cell (A3 event, A6 event).
  • the method for determining the first measurement report trigger threshold is the same as the method for the A2 event described above, and is not described herein again for brevity.
  • the first information may further indicate, according to the quality change rate of the cell, the first measurement report trigger threshold, which may be a neighbor cell quality change rate, a serving cell quality change rate, and a neighbor cell ratio. At least one of the rate of change of the deterioration of the quality of the serving cell.
  • the first measurement report trigger threshold includes a threshold a and a threshold b.
  • the quality of the serving cell is worse than the threshold a, and the quality of the neighboring cell is better than the threshold b (A5 event).
  • the first network device configures n sets of measurement report trigger thresholds in the first information: a measurement report trigger threshold 1 (a 1 , b 1 ), and a measurement report trigger threshold 2 (a 2 , b 2 ), ..., the measurement report trigger threshold n(a n , b n ).
  • the first network device configures an associated n-1 cell quality change rate threshold value in the first information: a cell quality change rate threshold value 1 (c 1 , d 1 ), and a cell quality change rate gate The limit value 2 (c 2 , d 2 ), ..., the cell mass change rate threshold value n-1 (c n-1 , d n-1 ).
  • c 1 , c 2 , . . . , c n-1 in the above-mentioned measurement report trigger threshold may represent the serving cell quality change rate threshold
  • d 1 , d 2 , . . . , d n-1 may represent the quality change of the neighboring cell.
  • Rate threshold the first serving cell quality change rate may be determined from c 1 , c 2 , . . . , c n-1 according to the serving cell quality change rate by the method in (1), and then the first serving cell quality change rate is adopted. Determining a threshold a from a 1 , a 2 , . . .
  • the cell quality change rate determines a threshold b from b 1 , b 2 , ..., b n ;
  • the terminal device simultaneously satisfies the serving cell quality than the threshold a difference and the neighbor cell quality ratio threshold b, and triggers the reporting of the measurement report.
  • the terminal device sends a first measurement report to the first network device according to the first measurement report trigger threshold, and the first network device receives the first measurement report sent by the terminal device;
  • the first network device determines, according to the first measurement report, whether to switch the terminal device.
  • the first network device sends a handover request message to the second network device, where the second network device receives the handover request message sent by the first network device;
  • the second network device performs admission control according to the handover request message.
  • the second network device sends a handover request response message to the first network device, where the first network device receives the handover request response message sent by the second network device;
  • the first network device sends a first handover command to the terminal device according to the handover request response message, and the terminal device receives the first handover command sent by the first network device, where the first handover command includes the first handover condition;
  • the terminal device performs, according to the first switching condition, a handover of the terminal device, where the handover is a handover from the first network device to the second network device.
  • S230-S290 is similar to S120-S140 in the switching method 100, and is not described herein for brevity.
  • the first switching command may further include a timer 1. after receiving the first switching command, the terminal device does not immediately perform the switching process, but starts the timer 1, if the timer 1 expires before If the terminal device satisfies the first handover condition, the terminal device performs handover to the target cell that meets the condition. If the switching condition is not satisfied during the running of the timer 1, the terminal device discards the first switching command after the timer 1 times out, and executes the steps S220-S280 using the first information.
  • FIG. 6 is a schematic diagram of determining a trigger value of a measurement report.
  • the event type is that the quality of the serving cell becomes worse than the trigger threshold of the measurement report.
  • the first network device configures two sets of measurement report trigger thresholds for the terminal device.
  • the cell quality change rate is higher than the cell quality change rate threshold value 1, so The measurement report is triggered when the cell quality reaches the threshold 1.
  • the measurement report when the speed of the terminal device is slow or static, since the cell quality change rate threshold is lower than the cell quality change rate threshold 1, when the cell quality reaches the threshold 1, the measurement report is not triggered, only in the cell. When the quality reaches the threshold of 2, the measurement report can be triggered, thus avoiding the waste of system resources.
  • the handover method of the embodiment of the present application by carrying at least one cell quality change rate and at least two measurement report trigger threshold values in the measurement control message, helps the terminal device select an appropriate measurement report trigger threshold value through actual conditions. , thereby helping to avoid the terminal device continuously triggering measurement reports and reducing the overhead of the terminal device.
  • a handover method 200 according to an embodiment of the present application is described in detail.
  • the terminal device is selected to select an appropriate measurement report trigger gate according to actual conditions.
  • the limit value is described below with reference to FIG. 7 , which is used to describe the handover method 300 according to the embodiment of the present application.
  • the first information is carried in the handover command sent by the first network device to the terminal device in the previous handover, which is helpful.
  • the appropriate measurement report trigger threshold is selected according to the actual situation.
  • FIG. 7 is a schematic flowchart of a handover method 300 according to an embodiment of the present application.
  • the terminal device may be the terminal device in FIG. 1
  • the first network device may be the first in FIG. 1
  • a network device, which may be the second network device in FIG. 1, the method 300 includes:
  • the first network device sends the second handover command to the terminal device according to the second measurement report, where the terminal device receives the second handover command sent by the first network device according to the second measurement report, where the second handover command
  • the second switching condition and the threshold configuration information are included.
  • the threshold configuration information is the first information.
  • the first network device sends the second handover command to the terminal device according to the second measurement report, including:
  • the first network device sends a handover request message to the second network device according to the second measurement report, where the second network device receives the handover request message sent by the first network device according to the second measurement report;
  • the second network device sends a handover request response message to the first network device, where the first network device receives a handover request response message sent by the second network device, where the handover request response message includes the threshold configuration information;
  • the first network device sends the second handover command to the terminal device according to the handover request response message, and the terminal device receives the second handover command sent by the first network device according to the handover request response message.
  • the first information is configured by the second network device, and after receiving the handover request message sent by the first network device, the second network device sends the handover request response message to the first network device, where the handover is performed.
  • the request response message includes the first information configured by the second network device, and after receiving the handover request response message, the first network device carries the first information in a second handover command sent to the terminal device.
  • the first network device sends the second handover command to the terminal device according to the second measurement report, including:
  • the first network device sends a handover request message to the second network device according to the second measurement report, where the second network device receives the handover request message sent by the first network device according to the second measurement report;
  • the second network device sends a handover request response message to the first network device, where the first network device receives a handover request response message sent by the second network device;
  • the first network device sends the second handover command to the terminal device according to the handover request response message, and the terminal device receives the second handover command sent by the first network device according to the handover request response message.
  • the first information is configured by the first network device, and after receiving the handover request message sent by the first network device, the second network device sends the handover request response message to the first network device, where the After receiving the handover request response message, the network device carries the first information in the second handover command sent to the terminal device.
  • the first network device sends the second handover command to the terminal device according to the second measurement report, including:
  • the first network device sends a handover request message to the second network device according to the second measurement report, where the second network device receives the handover request message sent by the first network device according to the second measurement report, the handover request
  • the message includes the first information
  • the second network device sends a handover request response message to the first network device, where the first network device receives a handover request response message sent by the second network device, where the handover request response message includes the first information;
  • the first network device sends the second handover command to the terminal device according to the handover request response message, and the terminal device receives the second handover command sent by the first network device according to the handover request response message.
  • the first information is configured by the first network device, where the first network device carries the first information in a handover request message sent to the second network device, where the second network device receives the handover request After the message is sent to the first network device, the first information is sent to the first network device. After receiving the handover request response message, the first network device carries the second handover command sent to the terminal device. First information.
  • the switching method 300 before the sending, by the first network device, the second switching command to the terminal device according to the second measurement report, the switching method 300 further includes:
  • the first network device sends a measurement control message to the terminal device, where the terminal device receives a measurement control message sent by the first network device, where the measurement control message includes a second measurement report trigger threshold value;
  • the terminal device sends a second measurement report to the first network device according to the second measurement report trigger threshold, where the first network device receives the terminal device according to the second measurement report trigger threshold Second measurement report.
  • the second switching command may further include a timer 1.
  • the terminal device after receiving the second switching command, the terminal device does not immediately perform the switching process, but starts the timer 1, if the timer 1 expires before If the terminal device satisfies the second handover condition, the terminal device performs handover to the target cell that meets the condition. If the switching condition is not satisfied during the running of the timer 1, the terminal device discards the second switching command after the timer 1 times out, and executes the steps S320-S380 using the first information.
  • S320 The terminal device does not meet the second handover condition within a predetermined time, and the terminal device determines the first measurement report trigger threshold according to the cell quality change rate and the first information.
  • the first network device sends a measurement control message to the terminal device, where the measurement control message includes a second measurement report trigger threshold, and after the terminal device meets the second measurement report trigger threshold, The first network device sends a second measurement report, where the first network device sends the second handover command to the terminal device according to the second measurement report, where the second handover command includes the second handover condition and the first information, where The terminal device does not satisfy the second handover condition within a predetermined time, and the terminal device determines the first measurement report trigger threshold according to the cell quality change rate and the first information.
  • the terminal device determines that the first measurement report trigger threshold is similar to the process of S220 in the handover method 200 according to the cell quality change rate and the first information. For brevity, details are not described herein again.
  • the terminal device sends a first measurement report to the first network device according to the first measurement report trigger threshold, and the first network device receives the first measurement report sent by the terminal device;
  • the first network device determines, according to the first measurement report, whether to switch the terminal device.
  • the first network device sends a handover request message to the second network device, where the second network device receives the handover request message sent by the first network device;
  • the second network device performs admission control according to the handover request message.
  • the second network device sends a handover request response message to the first network device, where the first network device receives the handover request response message sent by the second network device;
  • the first network device sends a first handover command to the terminal device according to the handover request response message, and the terminal device receives the first handover command sent by the first network device, where the first handover command includes the first handover condition;
  • the terminal device performs, according to the first switching condition, a handover of the terminal device, where the handover is a handover from the first network device to the second network device.
  • S330-S390 is similar to S120-S140 in the switching method 100, and is not described herein for brevity.
  • the at least one cell quality change rate and the at least two measurement report trigger thresholds are carried in the handover command of the previous handover, which helps the terminal device select an appropriate measurement report trigger threshold by using actual conditions. , thereby helping to avoid the terminal device continuously triggering measurement reports and reducing the overhead of the terminal device.
  • the network side configures multiple sets of measurement report trigger thresholds and corresponding cell quality change rate threshold values for the terminal device, and the terminal The device selects one of the measurement report trigger thresholds according to the cell signal quality change rate.
  • the method 400 and 500 according to the embodiments of the present application are described below with reference to FIG. 8 to FIG. 10, which utilizes a timer to prevent the terminal device from continuously triggering the measurement report, and reduces the system overhead of the cell edge low speed or static terminal device.
  • FIG. 8 is a schematic flowchart of a handover method 400 according to an embodiment of the present application.
  • the terminal device may be the terminal device in FIG. 1
  • the first network device may be the first in FIG. 1
  • a network device, which may be the second network device in FIG. 1, the method 400 includes:
  • the first network device sends a measurement control message to the terminal device, where the terminal device receives a measurement control message sent by the first network device, where the measurement control message includes a first measurement report trigger threshold.
  • the measurement control message sent by the first network device to the terminal device includes a first measurement report trigger threshold.
  • the terminal device sends a first measurement report to the first network device according to the first measurement report trigger threshold, and the first network device receives the terminal device to send according to the first measurement report trigger threshold.
  • the first measurement report ;
  • the first network device determines, according to the first measurement report, whether to switch the terminal device.
  • the first network device sends a handover request message to the second network device, where the second network device receives the handover request message sent by the first network device;
  • the second network device performs admission control according to the handover request message.
  • the second network device sends a handover request response message to the first network device, where the first network device receives the handover request response message sent by the second network device;
  • the first network device sends a first handover command to the terminal device according to the handover request response message, and the terminal device receives the first handover command sent by the first network device, where the first handover command includes the first handover condition.
  • S430-S470 is similar to S131-S135 in the switching method 100, and is not described herein for brevity.
  • the first switching command in S470 includes the configuration of the first switching condition, the timer 1 and the timer 2, and the timer 1 is used to indicate the valid time of the first switching command, the timer. 2 Starts after timer 1 and is used to limit the terminal device from triggering the measurement report.
  • the timer 2 may be configured to the terminal device by using the measurement control message in S410. If the timer 2 is included in the measurement control message, the timer 2 may not be included in the first switching command.
  • S480 The terminal device does not satisfy the first switching condition in the first predetermined time, and the terminal device does not trigger the measurement report in the second predetermined time;
  • the terminal device After the second predetermined time, the terminal device sends a second measurement report to the first network device according to the first measurement report trigger threshold.
  • the terminal device after receiving the first handover command, the terminal device does not immediately perform the handover process, but starts the timer 1, and the timer 1 is used to indicate the validity time of the first handover command, and the timer 2 is After the timer 1 is started, during the operation of the timer 2, the terminal device no longer sends a measurement report to the first network device. After the timer 2 expires, steps S420-S470 are performed.
  • the handover method of the embodiment of the present application by using a timer, helps to prevent the terminal device from continuously triggering the measurement report, and reduces the system overhead of the cell edge low-speed or static terminal device.
  • FIG. 9 shows a schematic flowchart of a handover method 500 according to an embodiment of the present application.
  • the terminal device may be the terminal device in FIG. 1
  • the first network device may be the first network device in FIG. 1
  • the second network device may be the second network device in FIG. 1 .
  • the method 500 includes:
  • the first network device sends a measurement control message to the terminal device, where the terminal device receives a measurement control message sent by the first network device, where the measurement control message includes a third measurement report trigger threshold.
  • the measurement control message sent by the first network device to the terminal device includes a third measurement report trigger threshold.
  • the terminal device sends a third measurement report to the first network device according to the third measurement report trigger threshold, where the first network device receives the terminal device to send according to the third measurement report trigger threshold.
  • the third measurement report ;
  • the first network device determines, according to the third measurement report, whether to switch the terminal device.
  • the first network device sends a handover request message to the second network device, where the second network device receives the handover request message sent by the first network device;
  • the second network device performs admission control according to the handover request message.
  • S510-S550 is similar to S410-S450 in the switching method 400, and is not described herein for brevity.
  • the second network device sends a handover request response message to the first network device, where the first network device receives the handover request response message sent by the second network device;
  • the first network device sends a third handover command to the terminal device according to the handover request response message, and the terminal device receives the third handover command sent by the first network device, where the third handover command includes a third handover Condition and threshold update information.
  • the threshold update information is a fourth measurement report trigger threshold.
  • the threshold update information (the fourth measurement report trigger threshold) may be configured by the first network device, or may be configured by the second network device, and the configuration process and the configuration process of the first information in S310. Similarly, for the sake of brevity, it will not be repeated here.
  • the third switching command in S570 includes a third measurement condition, a configuration of the timer 1 and the timer 2, and a fourth measurement report trigger threshold, and the timer 1 is used. Instructing the effective time of the third switching command, the timer 2 is started after the timer 1, and the terminal device if the terminal device meets the fourth measurement report trigger threshold value configured in S570 during the operation of the timer 2 A measurement report may be sent to the first network device, and if not, the measurement report is not sent to the first network device.
  • the fourth measurement report trigger threshold may include a threshold or two thresholds for different measurement trigger times:
  • the quality of the serving cell is worse than the threshold a, and the quality of the neighboring cell is better than the threshold b (A5 event), and two thresholds.
  • the terminal device does not meet the third handover condition within a predetermined time. After the predetermined time, the terminal device determines the fourth measurement report trigger threshold as the first measurement report trigger threshold.
  • the terminal device sends a first measurement report to the first network device according to the first measurement report trigger threshold, and the first network device receives the first measurement report sent by the terminal device.
  • the handover method of the embodiment of the present application helps to prevent the terminal device from continuously triggering the measurement report by carrying a specific threshold value in the handover command, thereby reducing the system overhead of the cell edge low-speed or static terminal device.
  • FIG. 10 is a schematic flowchart of a handover method 600 according to an embodiment of the present application.
  • the terminal device may be the terminal device in FIG. 1
  • the first network device may be the first in FIG. 1
  • a network device, which may be the second network device in FIG. 1, the method 600 includes:
  • the first network device sends a measurement control message to the terminal device, where the terminal device receives a measurement control message sent by the first network device, where the measurement control message includes a third measurement report trigger threshold and a threshold update. information.
  • the threshold update information is a fourth measurement report trigger threshold.
  • the measurement control message sent by the first network device to the terminal device includes a third measurement report trigger threshold and a fourth measurement report trigger threshold.
  • the terminal device sends a third measurement report to the first network device according to the third measurement report trigger threshold, where the first network device receives the terminal device to send according to the third measurement report trigger threshold.
  • the third measurement report ;
  • the first network device determines, according to the third measurement report, whether to switch the terminal device.
  • the first network device sends a handover request message to the second network device, where the second network device receives the handover request message sent by the first network device;
  • the second network device performs admission control according to the handover request message.
  • S610-S650 is similar to S510-S550 in the switching method 500, and is not described herein for brevity.
  • the second network device sends a handover request response message to the first network device, where the first network device receives the handover request response message sent by the second network device;
  • the first network device sends a third handover command to the terminal device according to the handover request response message, and the terminal device receives the third handover command sent by the first network device, where the third handover command includes a third handover condition.
  • the third switching command in S670 includes the configuration of the third switching condition, the timer 1 and the timer 2, the timer 1 is used to indicate the effective time of the third switching command, and the timer 2 is in the timer.
  • the terminal device may send a measurement report to the first network device, if If not satisfied, the measurement report is not sent to the first network device.
  • the terminal device does not meet the third handover condition within a predetermined time. After the predetermined time, the terminal device determines the fourth measurement report trigger threshold as the first measurement report trigger threshold.
  • the terminal device sends a first measurement report to the first network device according to the first measurement report trigger threshold, and the first network device receives the first measurement report sent by the terminal device.
  • the handover method of the embodiment of the present application helps to prevent the terminal device from continuously triggering the measurement report by carrying a specific threshold value in the measurement control message, thereby reducing the system overhead of the cell edge low-speed or static terminal device.
  • the switching methods 400, 500, and 600 according to embodiments of the present application are described in detail above with reference to FIG. 8 to FIG. 10, using a timer (or a timer and a specific set of threshold values) to reduce the cell edge low speed.
  • the system overhead of the terminal device in the case of a static situation.
  • the methods 700 and 800 of the embodiment of the present application are described in detail below with reference to FIG. 11 and FIG. 12, and the threshold value change step size is configured to the terminal device by the network device, thereby reducing the cell size.
  • FIG. 11 is a schematic flowchart of a handover method 700 according to an embodiment of the present application.
  • the terminal device may be the terminal device in FIG. 1
  • the first network device may be the first in FIG. 1
  • a network device, which may be the second network device in FIG. 1, the method 700 includes:
  • the first network device sends a measurement control message to the terminal device, where the terminal device receives a measurement control message sent by the first network device, where the measurement control message includes a third measurement report trigger threshold.
  • the measurement control message sent by the first network device to the terminal device includes a third measurement report trigger threshold.
  • the terminal device sends a third measurement report to the first network device according to the third measurement report trigger threshold, where the first network device receives the terminal device to send according to the third measurement report trigger threshold.
  • the third measurement report ;
  • the first network device determines, according to the third measurement report, whether to switch the terminal device.
  • the first network device sends a handover request message to the second network device, where the second network device receives the handover request message sent by the first network device;
  • the second network device performs admission control according to the handover request message.
  • S710-S750 is similar to S510-S550 in the switching method 500, and is not described herein for brevity.
  • the second network device sends a handover request response message to the first network device, where the first network device receives the handover request response message sent by the second network device;
  • the first network device sends a third handover command to the terminal device according to the handover request response message, and the terminal device receives the third handover command sent by the first network device, where the third handover command includes a third handover Condition and threshold configuration information.
  • the threshold configuration information is a threshold change step.
  • the threshold update information (the threshold change step size) may be configured by the first network device or configured by the second network device, and the configuration process is similar to the configuration process of the first information in S310. For the sake of brevity, it will not be repeated here.
  • the third switching command includes a third switching condition, a configuration of the timer 1, and a threshold change step.
  • the timer 1 is used to indicate the valid time of the first switching command, and the timer 1 times out. If the terminal device meets the third handover condition, the terminal device switches to the target cell that meets the condition; if the terminal device does not satisfy the third handover condition during the operation of the timer 1, when the timer 1 times out, The terminal device updates the measurement report trigger threshold according to the threshold change step configured in the S760 third handover command.
  • the terminal device does not meet the third handover condition within a predetermined time. After the predetermined time, the terminal device determines the fourth measurement report trigger threshold as the first measurement report trigger threshold.
  • the threshold change step is a step value m. If the terminal device does not satisfy the third handover condition during the operation of the timer 1, the terminal device may determine the first measurement after the timer 1 times out.
  • the report trigger threshold is the third measurement report trigger threshold plus the step value m.
  • the third measurement report trigger threshold may be threshold 1. If the terminal device does not meet the third handover condition during the operation of the timer 1, the terminal device may It is determined that the first measurement report trigger threshold is threshold 2, and the threshold 2 is the third measurement report trigger threshold plus the step value m.
  • the terminal device sends a first measurement report to the first network device according to the first measurement report trigger threshold, and the first network device receives the first measurement report sent by the terminal device.
  • FIG. 12 is a schematic flowchart of a handover method 800 according to an embodiment of the present application.
  • the terminal device may be the terminal device in FIG. 1
  • the first network device may be the first in FIG. 1
  • a network device, which may be the second network device in FIG. 1, the method 800 includes:
  • the first network device sends a measurement control message to the terminal device, where the terminal device receives a measurement control message sent by the first network device, where the measurement control message includes a third measurement report trigger threshold and a threshold update. information.
  • the threshold update information is a threshold change step size.
  • the measurement control message sent by the first network device to the terminal device includes a third measurement report trigger threshold and a threshold change step.
  • the terminal device sends a third measurement report to the first network device according to the third measurement report trigger threshold, where the first network device receives the terminal device to send according to the third measurement report trigger threshold.
  • the third measurement report ;
  • the first network device determines, according to the third measurement report, whether to switch the terminal device.
  • the first network device sends a handover request message to the second network device, where the second network device receives the handover request message sent by the first network device;
  • the second network device performs admission control according to the handover request message.
  • S820-S850 is similar to the S720-S750 in the switching method 700, and is not described herein again for the sake of brevity.
  • the second network device sends a handover request response message to the first network device, where the first network device receives the handover request response message sent by the second network device;
  • the first network device sends a third handover command to the terminal device according to the handover request response message, where the terminal device receives the third handover command sent by the first network device, where the third handover command includes a third handover condition.
  • the third switching command includes a third switching condition and a configuration of the timer 1.
  • the timer 1 is used to indicate the effective time of the first switching command, and the terminal device satisfies the third switching before the timer 1 times out.
  • the condition is that the terminal device switches to the target cell that meets the condition; if the terminal device does not satisfy the third handover condition during the operation of the timer 1, the terminal device configures according to the S810 measurement control message after the timer 1 times out.
  • the threshold change step updates the measurement report trigger threshold.
  • the terminal device does not meet the third handover condition within a predetermined time. After the predetermined time, the terminal device determines the fourth measurement report trigger threshold as the first measurement report trigger threshold.
  • the threshold change step is a step value m. If the terminal device does not satisfy the third handover condition during the operation of the timer 1, the terminal device may determine the first measurement after the timer 1 times out.
  • the report trigger threshold is the third measurement report trigger threshold plus the step value m.
  • the third measurement report trigger threshold may be threshold 1. If the terminal device does not meet the third handover condition during the operation of the timer 1, the terminal device may It is determined that the first measurement report trigger threshold is threshold 2, and the threshold 2 is the third measurement report trigger threshold plus the step value m.
  • the terminal device sends a first measurement report to the first network device according to the first measurement report trigger threshold, and the first network device receives the first measurement report sent by the terminal device.
  • the switching method of the embodiment of the present application by configuring the threshold change step of the network side, helps to prevent the terminal device from continuously triggering the measurement report, and reduces the system overhead of the cell edge low-speed or static terminal device.
  • the switching method according to the embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 12 .
  • the terminal device and the network device according to the embodiment of the present application are described in detail below with reference to FIG. 13 to FIG. 20 .
  • FIG. 13 is a schematic block diagram of a terminal device 900 according to an embodiment of the present application. As shown in FIG. 13, the terminal device 900 includes:
  • the processing module 910 is configured to determine, according to the threshold configuration information, a first measurement report trigger threshold, where the threshold configuration information includes first information or threshold update information, where the first information includes at least one cell quality change. Rate threshold and at least two measurement report trigger thresholds;
  • the processing module 910 is further configured to: according to the first measurement report trigger threshold, the control transceiver module 920 sends a first measurement report to the first network device;
  • the transceiver module 920 is further configured to receive a first handover command that is sent by the first network device according to the first measurement report, where the first handover command is used to instruct the terminal device to switch from the first network device to the second network device.
  • the threshold configuration information includes the first information
  • the transceiver module 920 is further configured to receive the measurement control message sent by the first network device, where the measurement control message includes the first information
  • the processing module 910 is specifically configured to: determine, according to the cell quality change rate and the first information, the first measurement report trigger threshold.
  • the threshold configuration information includes the first information
  • the transceiver module 920 is further configured to receive a second handover command sent by the first network device according to the second measurement report, where the second handover command includes the second handover Conditions and the first information;
  • the processing module 910 is specifically configured to:
  • the terminal device does not satisfy the second handover condition within a predetermined time, and determines the first measurement report trigger threshold according to the cell quality change rate and the first information.
  • processing module 910 is specifically configured to:
  • the first measurement report trigger threshold from the at least two measurement report trigger thresholds.
  • the threshold configuration information includes threshold update information
  • the transceiver module 920 is further configured to receive a third handover command sent by the first network device according to the third measurement report, where the third handover command includes a third Switching conditions and the threshold update information;
  • the processing module 910 is specifically configured to:
  • the third switching condition is not met within a predetermined time, and the first measurement report triggering threshold is determined according to the threshold update information.
  • the threshold configuration information includes threshold update information
  • the transceiver module 920 is further configured to receive a measurement control message sent by the first network device, where the measurement control message includes a third measurement report trigger threshold and The threshold update information;
  • the processing module 910 controls the transceiver module 920 to send a third measurement report to the first network device according to the third measurement report trigger threshold.
  • the transceiver module 920 is further configured to receive a third handover command that is sent by the first network device according to the third measurement report, where the third handover command includes a third handover condition.
  • the processing module 910 is specifically configured to:
  • the terminal device does not satisfy the third handover condition within a predetermined time, and the terminal device determines the first measurement report trigger threshold according to the threshold update information.
  • the threshold update information is a fourth measurement report trigger threshold
  • the processing module 910 is specifically configured to:
  • the third switching condition is not satisfied within a predetermined time
  • the fourth measurement report trigger threshold is determined as the first measurement report trigger threshold.
  • the threshold update information is a threshold change step size.
  • the cell quality change rate threshold value includes at least one of a neighbor cell quality change rate threshold, a serving cell quality change rate threshold, and a change rate threshold of the neighbor cell and the serving cell quality deviation.
  • a neighbor cell quality change rate threshold includes at least one of a neighbor cell quality change rate threshold, a serving cell quality change rate threshold, and a change rate threshold of the neighbor cell and the serving cell quality deviation.
  • the measurement report trigger threshold includes at least one of a neighbor cell quality threshold, a serving cell quality threshold, and a threshold value of the neighbor cell and the serving cell quality deviation.
  • FIG. 14 shows a schematic block diagram of a terminal device 1000 according to an embodiment of the present application.
  • the terminal device 1000 includes:
  • the transceiver module 1010 is configured to receive a first measurement control message sent by the first network device, where the first measurement control message includes a first measurement report trigger threshold.
  • the processing module 1020 is configured to send, according to the first measurement report trigger threshold, a first measurement report to the first network device.
  • the transceiver module 1010 is further configured to receive a first switching command that is sent by the first network device according to the first measurement report, where the first switching command includes a first switching condition;
  • the first switching condition is not met, and after the second predetermined time, the processing module 1020 is further configured to send a second measurement report to the first network device according to the first measurement report trigger threshold.
  • FIG. 15 shows a schematic block diagram of a network device 1100 according to an embodiment of the present application.
  • the network device 1100 includes:
  • the transceiver module 1110 is configured to send threshold configuration information to the terminal device, where the threshold configuration information is used by the terminal device to determine a first measurement report trigger threshold, where the threshold configuration information includes first information or threshold update information.
  • the first information includes at least one cell quality change rate threshold value and the at least two measurement report trigger threshold values;
  • the transceiver module 1110 is further configured to receive a first measurement report that is sent by the terminal device according to the first measurement report trigger threshold.
  • the processing module 1120 is configured to control, according to the first measurement report, the transceiver module 1110 to send a first handover command to the terminal device, where the first handover command is used to instruct the terminal device to switch from the first network device to the second network. device.
  • the transceiver module 1110 is specifically configured to:
  • the transceiver module 1110 is further configured to send a measurement control message to the terminal device, where the measurement control message includes a second cell quality threshold.
  • the transceiver module 1110 is further configured to receive a second measurement report that is sent by the terminal device according to the second cell quality threshold.
  • the transceiver module 1110 is specifically configured to:
  • processing module 1120 is specifically configured to:
  • processing module 1120 is specifically configured to:
  • processing module 1120 is specifically configured to:
  • the threshold update information is a fourth measurement report trigger threshold or a threshold change step.
  • the cell quality change rate threshold value includes at least one of a neighbor cell quality change rate threshold, a serving cell quality change rate threshold, and a change rate threshold of the neighbor cell and the serving cell quality deviation.
  • a neighbor cell quality change rate threshold includes at least one of a neighbor cell quality change rate threshold, a serving cell quality change rate threshold, and a change rate threshold of the neighbor cell and the serving cell quality deviation.
  • the measurement report trigger threshold includes at least one of a neighbor cell quality threshold, a serving cell quality threshold, and a threshold value of the neighbor cell and the serving cell quality deviation.
  • FIG. 16 is a schematic block diagram of a network device 1200 according to an embodiment of the present application. As shown in FIG. 16, the network device 1200 includes:
  • the transceiver module 1210 is configured to receive a handover request message sent by the first network device.
  • the processing module 1220 is configured to send, according to the handover request message, a handover request response message to the first network device, where the handover request response message includes threshold configuration information, where the threshold configuration information includes first information or a threshold And updating the information, the first information includes at least one cell quality change rate threshold value and at least two measurement report trigger threshold values.
  • the threshold request configuration information is included in the handover request message.
  • the threshold update information is a fourth measurement report trigger threshold or a threshold change step.
  • the cell quality change rate threshold value includes at least one of a neighbor cell quality change rate threshold, a serving cell quality change rate threshold, and a change rate threshold of the neighbor cell and the serving cell quality deviation.
  • a neighbor cell quality change rate threshold includes at least one of a neighbor cell quality change rate threshold, a serving cell quality change rate threshold, and a change rate threshold of the neighbor cell and the serving cell quality deviation.
  • the measurement report trigger threshold includes at least one of a neighbor cell quality threshold, a serving cell quality threshold, and a threshold value of the neighbor cell and the serving cell quality deviation.
  • FIG. 17 shows a schematic block diagram of a terminal device 1300 according to an embodiment of the present application.
  • the terminal device 1300 includes one or more processors 1310, a memory 1320, and a communication interface 1330; the one or more processors 1310, the memory 1320, and the communication interface 1330 are each connected by an internal path;
  • the memory 1320 is configured to store a computer execution instruction
  • the one or more processors 1310 are configured to execute computer execution instructions stored by the memory 1320, so that the terminal device 1300 can perform data interaction with other devices through the communication interface 1330 to perform the foregoing steps provided in the foregoing embodiments. Switch method.
  • the one or more processors 1310 are configured to perform the following operations:
  • a first measurement report trigger threshold Determining, according to the threshold configuration information, a first measurement report trigger threshold, where the threshold configuration information includes first information or threshold update information, where the first information includes at least one cell quality change rate threshold and at least Two measurement reports trigger thresholds;
  • the control communication interface 1330 sends a first measurement report to the first network device according to the first measurement report trigger threshold
  • the first switching command sent by the first network device according to the first measurement report is received by the communication interface 1330, where the first switching command is used to indicate that the terminal device switches from the first network device to the second network device.
  • terminal device 1300 may be specifically the terminal device 900 in the foregoing embodiment, and may be used to perform various steps and/or processes corresponding to the terminal device 900 in the foregoing method embodiments.
  • FIG. 18 shows a schematic block diagram of a terminal device 1400 of an embodiment of the present application.
  • the terminal device 1400 includes one or more processors 1410, a memory 1420, and a communication interface 1430; the one or more processors 1410, the memory 1420, and the communication interface 1430 are each connected by an internal path;
  • the memory 1420 is configured to store a computer execution instruction
  • the one or more processors 1410 are configured to execute computer executed instructions stored by the memory 1420, so that the server 1400 can perform data exchange with other devices through the communication interface 1430 to perform the switching provided in the foregoing embodiment. method.
  • the one or more processors 1410 are configured to perform the following operations:
  • the first switching condition is not met, and after the second predetermined time, the second measurement report is sent to the first network device according to the first measurement report trigger threshold.
  • the network device 1400 may be specifically the network device 1000 in the foregoing embodiment, and may be used to perform various steps and/or processes corresponding to the network device 1000 in the foregoing method embodiments.
  • FIG. 19 shows a schematic block diagram of a network device 1500 of an embodiment of the present application.
  • the network device 1500 includes one or more processors 1510, a memory 1520, and a communication interface 1530; the one or more processors 1510, the memory 1520, and the communication interface 1530 are each connected by an internal path;
  • the memory 1520 is configured to store a computer execution instruction
  • the one or more processors 1510 are configured to execute computer-executed instructions stored by the memory 1520, so that the terminal device 1500 can perform data interaction with other devices through the communication interface 1530 to perform the operations provided in the foregoing embodiments. Switch method.
  • the one or more processors 1510 are configured to perform the following operations:
  • the threshold value configuration information is sent to the terminal device by using the communication interface 1530, where the threshold value configuration information is used by the terminal device to determine a first measurement report trigger threshold, where the threshold value configuration information includes first information or threshold update information, where The first information includes at least one cell quality change rate threshold value and the at least two measurement report trigger threshold values;
  • the first transceiver command is configured to send the first handover command to the terminal device, where the first handover command is used to instruct the terminal device to switch from the first network device to the second network device.
  • the network device 1500 may be specifically the network device 1100 in the foregoing embodiment, and may be used to perform various steps and/or processes corresponding to the network device 1100 in the foregoing method embodiments.
  • FIG. 20 shows a schematic block diagram of a network device 1600 of an embodiment of the present application.
  • the network device 1600 includes one or more processors 1610, a memory 1620, and a communication interface 1630; the one or more processors 1610, the memory 1620, and the communication interface 1630 are each connected by an internal path;
  • the memory 1620 is configured to store a computer execution instruction
  • the one or more processors 1610 are configured to execute computer-executed instructions stored by the memory 1620, such that the network device 1600 can perform data interaction with other devices through the communication interface 1630 to perform the operations provided in the foregoing embodiments. Switch method.
  • the one or more processors 1610 are configured to perform the following operations:
  • the handover request response message includes threshold configuration information, where the threshold configuration information includes first information or threshold update information, the first The information includes at least one cell quality change rate threshold and at least two measurement report trigger thresholds.
  • the network device 1600 may be specifically the network device 1200 in the foregoing embodiment, and may be used to perform various steps and/or processes corresponding to the network device 1200 in the foregoing method embodiments.
  • the embodiment of the present application further provides a chip system, the chip system includes: one or more processors, one or more memories, and an interface circuit, wherein the interface circuit is responsible for information interaction between the chip system and the outside world, One or more memories, the interface circuit, and the one or more processors are interconnected by a line, the one or more memories having instructions stored therein; the instructions being executed by the one or more processors to The terminal device or the network device is caused to perform an operation of the terminal device or the network device corresponding to the above method.
  • the chip system includes: one or more processors, one or more memories, and an interface circuit, wherein the interface circuit is responsible for information interaction between the chip system and the outside world, One or more memories, the interface circuit, and the one or more processors are interconnected by a line, the one or more memories having instructions stored therein; the instructions being executed by the one or more processors to The terminal device or the network device is caused to perform an operation of the terminal device or the network device corresponding to the above method.
  • the embodiment of the present application further provides a communication system, including: a terminal device, and/or a network device; wherein the terminal device is the terminal device described in each aspect, and the network device is in the foregoing aspects.
  • a communication system including: a terminal device, and/or a network device; wherein the terminal device is the terminal device described in each aspect, and the network device is in the foregoing aspects.
  • Network equipment
  • the embodiment of the present application further provides a computer program product, which is applied to a network device, where the computer program product includes a series of instructions, when the instruction is executed, so that the terminal device or the terminal device can perform corresponding to The operation of the terminal device or the network device of the above method.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments 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 may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the computer program product can include one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic disk), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)).
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic disk
  • an optical medium e.g., a DVD
  • a semiconductor medium e.g., a Solid State Disk (SSD)
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本申请提供了一种切换方法、终端设备和网络设备，该切换方法包括：该切换方法包括终端设备根据门限值配置信息，确定第一测量报告触发门限值，该门限值配置信息包括第一信息或门限值更新信息，该第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值；该终端设备根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告；该终端设备接收来自于该第一网络设备的第一切换命令，该第一切换命令用于指示该终端设备从该第一网络设备切换到第二网络设备。本申请实施例的切换方法，终端设备可以根据门限值配置信息选择或者更新触发测量报告的门限值，有助于防止终端设备持续触发测量报告，从而减少终端设备的系统开销。

Description

一种切换方法、终端设备和网络设备
本申请要求于2018年1月11日提交中国专利局、申请号为201810026708.2、申请名称为“一种切换方法、终端设备和网络设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体地，涉及一种切换方法、终端设备和网络设备。
背景技术
切换是指在移动通信的过程中，在保证通信不间断的前提下，把通信的无线连接链路从一个小区转换到另一个小区的过程。用户在通话过程中，从一个基站覆盖区移动到另一个基站覆盖区时，或由于受到外界的干扰或其他原因使通信质量下降时，终端设备会向当前小区发送测量报告，以使得将其转换到另一个基站上去，以保证正常的通信。
现有的条件切换方法中，对于在小区边缘低速徘徊或静止的终端设备，在触发测量报告之后，服务基站向目标基站发送切换请求消息，目标基站回复切换请求响应消息并为该终端设备预留资源，服务基站发送条件切换命令给该终端设备，由于该终端设备移动缓慢或静止，切换条件长时间不满足，在定时器超时后该终端设备会丢弃条件切换命令。此时小区质量满足测量报告触发门限，因此该终端设备会向服务基站发送一条测量报告，条件切换准备过程会重复执行。每一次重复以上步骤都会引发两条空口消息和两条Xn消息，并且目标小区会一直为该终端设备预留资源，带来非常大的系统资源浪费。
发明内容
本申请提供一种切换方法、终端设备和网络设备，终端设备可以根据门限值配置信息选择或者更新触发测量报告的门限值，有助于防止终端设备持续触发测量报告，从而减少终端设备的系统开销。
第一方面，提供了一种切换方法，该切换方法包括终端设备根据门限值配置信息，确定第一测量报告触发门限值，该门限值配置信息包括第一信息或门限值更新信息，该第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值；该终端设备根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告；该终端设备接收来自于该第一网络设备的第一切换命令，该第一切换命令用于指示该终端设备从该第一网络设备切换到第二网络设备。
具体而言，该门限值更新信息为第四测量报告触发门限值或者门限值变化步长。
在一些可能的实现方式中，该第一信息中的至少一个小区质量变化率门限值由协议预定义。
本申请实施例的切换方法，终端设备可以根据门限值配置信息选择或者更新触发测量 报告的门限值，有助于防止终端设备持续触发测量报告，从而减少终端设备的系统开销。
结合第一方面，在第一方面的某些可能的实现方式中，该门限值配置信息包括该第一信息，该方法还包括：该终端设备接收来自于该第一网络设备的测量控制消息，该测量控制消息包括该第一信息；其中，该终端设备根据门限值配置信息，确定第一测量报告触发门限值，包括：该终端设备根据小区质量变化率和该第一信息，确定该第一测量报告触发门限值。
本申请实施例的切换方法，通过在测量控制消息中携带第一信息，有助于防止终端设备持续触发测量报告，从而减少终端设备的系统开销。
结合第一方面，在第一方面的某些可能的实现方式中，该门限值配置信息包括该第一信息，该方法还包括：该终端设备接收来自于该第一网络设备的第二切换命令，该第二切换命令包括第二切换条件和该第一信息；其中，该终端设备根据门限值配置信息，确定第一测量报告触发门限值，包括：在预定时间内，该终端设备不满足该第二切换条件，该终端设备根据小区质量变化率和该第一信息，确定该第一测量报告触发门限值。
在一些可能的实现方式中，该终端设备接收来自于该第一网络设备的第二切换命令之前，该方法还包括：该终端设备接收来自于该第一网络设备的测量控制消息，该测量控制消息包括第二门限值配置信息；该终端设备根据该第二门限值配置信息，向该第一网络节点发送第二测量报告；其中，该终端设备接收来自于该第一网络设备的第二切换命令，包括：该终端设备接收该第一网络设备根据该第二测量报告发送的该第二切换命令。
本申请实施例的切换方法，通过在切换命令中携带第一信息，有助于防止终端设备持续触发测量报告，从而减少终端设备的系统开销。
结合第一方面，在第一方面的某些可能的实现方式中，该终端设备根据小区质量变化率和该第一信息，确定该第一测量报告触发门限值，包括：该终端设备根据小区质量变化率和该至少一个小区质量变化率门限值，确定第一小区质量变化率门限值；该终端设备根据该第一小区质量变化率门限值，从该至少两个测量报告触发门限值中确定该第一测量报告触发门限值。
本申请实施例的切换方法，终端设备通过小区质量变化率和该第一信息，从至少两个测量报告触发门限值中选择适合的测量报告触发门限值，有助于防止终端设备持续触发测量报告，从而减少终端设备的系统开销。
结合第一方面，在第一方面的某些可能的实现方式中，该门限值配置信息包括门限值更新信息，该方法还包括：该终端设备接收来自于该第一网络设备的第三切换命令，该第三切换命令包括第三切换条件和该门限值更新信息；其中，该终端设备根据门限值配置信息，确定第一测量报告触发门限值，包括：在预定时间内，该终端设备不满足该第三切换条件，该终端设备根据该门限值更新信息，确定该第一测量报告触发门限值。
在一些可能实现方式中，该终端设备接收来自于该第一网络设备的第三切换命令之前，该方法还包括：该终端设备接收该第一网络设备发送的测量控制消息，该测量控制消息包括第三测量报告触发门限值；该终端设备根据该第三测量报告触发门限值，向该第一网络设备发送第三测量报告；其中，该终端设备接收来自于该第一网络设备的第三切换命令，包括：终端设备接收该第一网络设备根据该第三测量报告发送的该第三切换命令。
本申请实施例的切换方法，通过在切换命令中携带门限值更新信息，有助于防止终端 设备持续触发测量报告，从而减少终端设备的系统开销。
结合第一方面，在第一方面的某些可能的实现方式中，该门限值配置信息包括门限值更新信息，该方法还包括：该终端设备接收来自于该第一网络设备的测量控制消息，该测量控制消息包括第三测量报告触发门限值和该门限值更新信息；该终端设备根据该第三测量报告触发门限值，向该第一网络设备发送第三测量报告；该终端设备接收来自于该第一网络设备的第三切换命令，该第三切换命令包括第三切换条件；其中，该终端设备根据门限值配置信息，确定第一测量报告触发门限值，包括：在预定时间内，该终端设备不满足该第三切换条件，该终端设备根据该门限值更新信息，确定该第一测量报告触发门限值。
本申请实施例的切换方法，通过在测量控制消息中携带门限值更新信息，有助于防止终端设备持续触发测量报告，从而减少终端设备的系统开销。
结合第一方面，在第一方面的某些可能的实现方式中，该门限值更新信息为第四测量报告触发门限值，该终端设备根据该门限值更新信息，确定该第一测量报告触发门限值，包括：在预定时间内，该终端设备不满足该第三切换条件；在预定时间后，该终端设备将该第四测量报告触发门限值确定为该第一测量报告触发门限值。
结合第一方面，在第一方面的某些可能的实现方式中，该门限值更新信息为门限值变化步长。
结合第一方面，在第一方面的某些可能的实现方式中，该小区质量变化率门限值包括邻小区质量变化率门限值、服务小区质量变化率门限值、该邻小区与该服务小区质量偏差的变化率门限值中的至少一种。
结合第一方面，在第一方面的某些可能的实现方式中，该测量报告触发门限值包括邻小区质量门限值、服务小区质量门限值、该邻小区与该服务小区质量偏差的门限值中的至少一种。
第二方面，提供了一种切换方法，该切换方法包括：终端设备接收来自于第一网络设备的第一测量控制消息，该第一测量控制消息包括第一测量报告触发门限值；该终端设备根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告；该终端设备接收来自于该第一网络设备的第一切换命令，该第一切换命令包括第一切换条件；在第一预定时间内，该终端设备不满足该第一切换条件，在第二预定时间后，该终端设备根据该第一测量报告触发门限，向该第一网络设备发送第二测量报告。
具体而言，该第一预定时间为定时器1，该第二预定时间为定时器2，该终端设备接收来自于该第一网络设备的该第一切换命令后，启动定时器1，在定时器1运行期间该终端设备不满足该第一切换条件；定时器1超时后启动定时器2，定时器2运行期间，该终端设备不触发测量报告，定时器2超时后，该终端设备根据该第一测量报告触发门限，向该第一网络设备发送第二测量报告。
在一些可能的实现方式中，该第一切换命令中包括该定时器1和该定时器2。
本申请实施例的切换方法，通过增加定时器2，有助于防止终端设备持续触发测量报告，从而减少终端设备的系统开销。
第三方面，提供了一种切换方法，该切换方法包括：第一网络设备向终端设备发送门限值配置信息，该门限值配置信息用于终端设备确定第一测量报告触发门限，该门限值配置信息包括第一信息或门限值更新信息，该第一信息包括至少一个小区质量变化率门限值 和该至少两个测量报告触发门限值；该第一网络设备接收来自于该终端设备的第一测量报告；该第一网络设备根据该第一测量报告，向该终端设备发送第一切换命令，该第一切换命令用于指示该终端设备从该第一网络设备切换到第二网络设备。
结合第三方面，在第三方面的某些可能的实现方式中，该第一网络设备向终端设备发送门限值配置信息，包括：该第一网络设备向该终端设备发送测量控制消息，该测量控制消息包括该门限值配置信息。
结合第三方面，在第三方面的某些可能的实现方式中，该方法还包括：该第一网络设备向该终端设备发送测量控制消息，该测量控制消息包括第二小区质量门限值；该第一网络设备接收来自于该终端设备的第二测量报告；其中，该第一网络设备向终端设备发送门限值配置信息，包括：该第一网络设备根据第二测量报告，向该终端设备发送第二切换命令，该第二切换命令包括该门限值配置信息。
结合第三方面，在第三方面的某些可能的实现方式中，该第一网络设备根据第二测量报告，向该终端设备发送第二切换命令，包括：该第一网络设备根据该第二测量报告，向该第二网络设备发送切换请求消息；该第一网络设备接收来自于该第二网络设备的切换请求响应消息，该切换请求响应消息包括该门限值配置信息；该第一网络设备根据该切换请求响应消息，向该终端设备发送该第二切换命令。
结合第三方面，在第三方面的某些可能的实现方式中，该第一网络设备根据第二测量报告，向该终端设备发送第二切换命令，包括：该第一网络设备根据该第二测量报告，向该第二网络设备发送切换请求消息；该第一网络设备接收来自于该第二网络设备的切换请求响应消息；该第一网络设备根据该切换请求响应消息，向该终端设备发送该第二切换命令。
结合第三方面，在第三方面的某些可能的实现方式中，该第一网络设备根据第二测量报告，向该终端设备发送第二切换命令，包括：该第一网络设备根据该第二测量报告，向该第二网络设备发送切换请求消息，该切换请求消息包括该门限值配置信息；该第一网络设备接收来自于该第二网络设备的切换请求响应消息，该切换请求响应消息包括该门限值配置信息；该第一网络设备根据该切换请求响应消息，向该终端设备发送该第二切换命令。
第四方面，提供了一种终端设备，用于执行第一方面或第一方面任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第一方面或第一方面的任一种可能的实现方式中的方法的模块。
第五方面，提供了一种终端设备，用于执行第二方面或第二方面任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第二方面或第二方面的任一种可能的实现方式中的方法的模块。
第六方面，提供了一种网络设备，用于执行第三方面或第三方面任意可能的实现方式中的方法。具体地，该网络设备包括用于执行上述第三方面或第三方面的任一种可能的实现方式中的方法的模块。
第七方面，提供了一种终端设备，该终端设备包括存储器、收发器和至少一个处理器，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述收发器用于执行第一方面及第一方面的任一种可能的实现方式中的方法中，在所述终端设备进行的消息收发的操作；所述至少一个处理器调用所述存储器中存储的所述指令，执行第一方面及第一方面 的任一种可能的实现方式中的方法中，在所述终端设备进行的处理操作。
第八方面，提供了一种终端设备，该终端设备包括存储器、收发器和至少一个处理器，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述收发器用于执行第二方面及第二方面的任一种可能的实现方式中的方法中，在所述终端设备进行的消息收发的操作；所述至少一个处理器调用所述存储器中存储的所述指令，执行第二方面及第二方面的任一种可能的实现方式中的方法中，在所述终端设备进行的处理操作。
第九方面，提供了一种网络设备，该网络设备包括存储器、收发器和至少一个处理器，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述收发器用于执行第三方面及第三方面的任一种可能的实现方式中的方法中，在所述网络设备进行的消息收发的操作；所述至少一个处理器调用所述存储器中存储的所述指令，执行第三方面及第三方面的任一种可能的实现方式中的方法中，在所述网络设备进行的处理操作。
第十方面，提供了一种芯片系统，应用于终端设备中，该芯片系统包括：至少一个处理器、至少一个存储器和接口电路，所述接口电路负责所述芯片系统与外界的信息交互，所述至少一个存储器、所述接口电路和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有指令；所述指令被所述至少一个处理器执行，以进行上述各个方面的所述的方法中所述终端设备的操作。
第十一方面，提供了一种芯片系统，应用于网络设备中，该芯片系统包括：至少一个处理器、至少一个存储器和接口电路，所述接口电路负责所述芯片系统与外界的信息交互，所述至少一个存储器、所述接口电路和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有指令；所述指令被所述至少一个处理器执行，以进行上述各个方面的所述的方法中所述网络设备的操作。
第十二方面，提供了一种通信系统，包括：网络设备，和/或，终端设备；其中，所述终端设备为上述各个方面所述的终端设备，所述网络设备为上述各个方面所述的网络设备。
第十三方面，提供了一种计算机程序产品，应用于终端设备中，所述计算机程序产品包括一系列指令，当所述指令被运行时，以进行上述各个方面的所述的方法中所述终端设备的操作。
第十四方面，提供了一种计算机程序产品，应用于网络设备中，所述计算机程序产品包括一系列指令，当所述指令被运行时，以进行上述各个方面的所述的方法中所述网络设备的操作。
第十五方面，提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述各个方面的所述的方法。
附图说明
图1是本申请实施例的技术方案应用的一种场景的示意图。
图2是本申请实施例的切换方法的示意性流程图。
图3是本申请实施例的切换方法的另一示意性流程图。
图4是本申请实施例的切换方法的再一示意性流程图。
图5是本申请实施例的确定测量报告触发门限值的示意图。
图6是确定测量报告触发门限值的示意图。
图7是本申请实施例的切换方法的再一示意性流程图。
图8是本申请实施例的切换方法的再一示意性流程图。
图9是本申请实施例的切换方法的再一示意性流程图。
图10是本申请实施例的切换方法的再一示意性流程图。
图11是本申请实施例的切换方法的再一示意性流程图。
图12是本申请实施例的切换方法的再一示意性流程图。
图13是本申请实施例的终端设备的示意性框图。
图14是本申请实施例的终端设备的另一示意性框图。
图15是本申请实施例的网络设备的示意性框图。
图16是本申请实施例的网络设备的另一示意性框图。
图17是本申请实施例的终端设备的再一示意性框图。
图18是本申请实施例的终端设备的再一示意性框图。
图19是本申请实施例的网络设备的再一示意性框图。
图20是本申请实施例的网络设备的再一示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，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频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、未来的第五代(5th Generation，5G)系统或新无线(New Radio，NR)等。
本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，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，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络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LTE系统中的演进型基站(Evolutional NodeB，eNB或eNodeB)，还可以是云 无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
图1是示出了根据本申请实施例的技术方案应用的一种场景的示意图，如图1所示，终端设备连接到第一网络设备，由于终端设备向第二网络设备移动，此时需要从第一网络设备切换到第二网络设备。
应理解，该第一网络设备在实际情况中可以为服务基站或者源基站，该第二网络设备可以为目标基站。
图2示出了根据本申请实施例的切换方法100的示意性流程图，如图2所示，该终端设备可以为图1中的终端设备，该第一网络设备可以为图1中的第一网络设备，该第二网络设备可以为图1中的第二网络设备，该方法100包括：
S110，终端设备根据门限值配置信息，确定第一测量报告触发门限值，该门限值配置信息包括第一信息或门限值更新信息，该第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值。
具体而言，该终端设备可以接收第一网络设备发送的门限值配置信息，该门限值配置信息用于该终端设备确定第一测量报告触发门限值，该终端设备根据该门限值配置信息确定第一测量报告触发门限值，该门限值配置信息可以为第一信息或者门限值更新信息，该第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值。
应理解，该门限值更新信息可以为一个测量报告触发门限值，还可以为门限值变化步长。
还应理解，该门限值配置信息可以在第一网络设备向终端设备发送的测量报告消息中配置；还可以在切换方法100之前第一网络设备向该终端设备发送的切换命令中配置，这种情况下，切换方法100可以使用上一次切换中第一网络设备通过切换命令配置的门限值配置信息，从而确定切换方法100中的该第一测量报告触发门限值。
可选地，该第一网络设备可以从以下事件中选择一种作为测量报告触发事件：
(1)服务小区质量变得比门限值差(A2事件)；
(2)邻小区质量变得比门限值好(A4事件)；
(3)邻小区质量比服务小区质量好的偏差高于门限(A3事件、A6事件)；
(4)服务小区质量比门限a差，并且邻小区质量比门限b好(A5事件)。
该第一网络设备会在测量配置中为使用的触发事件设置一组门限值。如果触发事件只涉及一个小区的质量(如，A2事件和A4事件)，或者触发事件涉及两个小区的质量偏差值(如A3事件、A6事件)，一组门限值中仅包含一个门限值；如果触发事件涉及两个小区的质量(如A5事件)，一组门限值中包含两个门限值。当该终端设备测量结果满足了所配置的事件的门限值，则会触发测量报告。
S120，该终端设备根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告，该第一网络设备接收该终端设备发送的第一测量报告。
具体而言，该终端设备根据测量配置对服务小区和/或邻区进行测量，并判断是否满足测量报告触发的条件。当测量满足报告触发条件时(邻小区质量高于一定门限同时服务小区质量低于一定门限，或者邻小区质量比服务小区质量高的偏差值高于一定门限)，该 终端设备向第一网络设备发送该第一测量报告。
S130，该第一网络设备根据该第一测量报告，向该终端设备发送第一切换命令，该终端设备接收该第一网络设备根据该第一测量报告发送的第一切换命令，该第一切换命令包括第一切换条件。
图3示出了根据本申请实施例的切换方法100的另一示意性流程图，如图3所示，S130该终端设备接收该第一网络设备根据该第一测量报告发送的第一切换命令，包括：
S131，该第一网络设备根据该第一测量报告，确定是否对该终端设备进行切换。
具体而言，该第一网络设备可以基于该第一测量报告及无线资源管理信息作出切换决定。
S132，该第一网络设备向该第二网络设备发送切换请求消息，该第二网络设备接收该第一网络设备发送的该切换请求消息。
具体而言，该第一网络设备发送切换请求消息给该第二网络设备，并携带必要的信息给该第二网络设备做切换准备。
可选地，这些必要的信息包括：目标小区ID，KgNB*，无线资源控制(Radio Resource Control，RRC)上下文信息(包括该终端设备在第一网络设备的小区无线网络临时标识(Cell Radio Network Temporary Identifier，C-RNTI)，接入层配置信息(物理层配置信息除外)等。
S133，该第二网络设备根据该切换请求消息执行准入控制。
应理解，该第一网络设备可以向多个第二网络设备发送该切换请求消息，由该多个第二网络设备进行准入控制。
S134，该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的该切换请求响应消息。
具体而言，该第二网络设备发送切换请求确认消息给该第一网络设备，该切换请求响应消息包含一个透传容器(transparent container)，该transparent container作为切换命令的一部分发送给该终端设备。transparent container包含一个新的C-RNTI，第二网络设备用于选择安全算法的安全算法标识符，还可以包含一个专用的随机接入前导序列(Preamble)以及专用的Preamble的终止时间的指示。此外也可以包含一些其它参数，如系统信息块等。
S135，该第一网络设备根据该切换请求响应消息，向该终端设备发送第一切换命令，该终端设备接收该第一网络设备发送的该第一切换命令，该第一切换命令包括第一切换条件。
具体而言，该第一网络设备向该终端设备发送第一切换命令，该第一切换命令包含transparent container。第一网络设备对切换命令执行必要的加密和完整性保护操作。该终端设备接收到具有必要信息(这些必要的信息包含：新的C-RNTI，该第二网络设备的安全算法标识符，可选地，还可以包含一个专用的随机接入Preamble以及专用的Preamble的终止时间的指示，以及该第二网络设备的系统信息块等)的切换命令，由该第一网络设备发送切换命令给该终端设备。
应理解，该第一切换命令中还可以包括定时器1，定时器1用于指示该第一切换命令的有效时间，该终端设备接收到该第一切换命令后，并不立即执行切换过程，而是启动定 时器1，并评估切换条件是否满足。
S140，该终端设备根据该第一切换条件，进行该终端设备的切换，该切换为从该第一网络设备到第二网络设备的切换。
具体而言，该终端设备判断该终端设备是否满足该第一切换条件，若该终端设备满足该第一切换条件，则进行该第一终端设备的切换，该切换为从该第一网络设备到该第二网络设备的切换。
现有技术的条件切换方法中，该第一网络设备在测量控制消息中携带固定的小区质量门限值，对于在小区边缘低速徘徊或静止的终端设备，切换条件长时间不满足，在定时器超时后该终端设备会丢弃条件切换命令。此时小区质量满足测量报告触发门限，因此该终端设备会向服务基站发送一条测量报告，条件切换准备过程会重复执行，会造成大量的信令开销，同时，第二网络设备会为终端设备预留资源，带来非常大的系统资源浪费。
本申请实施例的切换方法，终端设备可以根据门限值配置信息选择或者更新触发测量报告的门限值，有助于防止终端设备持续触发测量报告，从而减少终端设备的系统开销。
图4示出了根据本申请实施例的切换方法200的示意性流程图，如图4所示，该终端设备可以为图1中的终端设备，该第一网络设备可以为图1中的第一网络设备，该第二网络设备可以为图1中的第二网络设备，该方法200包括：
S210，该第一网络设备向该终端设备发送测量控制消息，该终端设备接收该第一网络设备发送的该测量控制消息，该测量控制消息包括该第一信息；
S220，该终端设备根据小区质量变化率和该第一信息，确定该第一测量报告触发门限值。
具体而言，该第一网络设备可以根据漫游和访问限制信息配置该终端设备的测量过程，包括测量对象(邻小区质量、服务小区质量和邻小区比服务小区质量好的偏差中的至少一种)和第一信息，该第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值，该终端设备根据小区质量变化率和该第一信息，确定该第一测量报告触发门限值。
图5示出了根据本申请实施例的确定测量报告触发门限值的示意图。
针对测量配置中不同的触发事件，选择该第一测量报告触发门限值的方法如下：
(1)服务小区质量变得比门限值差(A2事件)。
该第一网络设备在该第一信息中配置n组测量报告触发门限值：测量报告触发门限值1，测量报告触发门限值2，…，测量报告触发门限值n。
同时，第一网络设备在该第一信息中配置相关联的n-1个小区质量变化率门限值：小区质量变化率门限值1，小区质量变化率门限值2，…，小区质量变化率门限值n-1。
该终端设备根据小区质量变化率和该第一信息，确定该第一测量报告触发门限值，包括：
该终端设备根据小区质量变化率和该至少一个小区质量变化率门限值，确定第一小区质量变化率门限值；
该终端设备根据该第一小区质量变化率门限值，从该至少两个测量报告触发门限值中确定该第一测量报告触发门限值。
具体而言，如图5所示，根据小区质量变化率k选择对应的测量报告触发门限值。
若k≥小区质量变化率门限值1，则使用测量报告触发门限值1；
若小区质量变化率门限值2≤k＜小区质量变化率门限值1，则使用测量报告触发门限值2；
……
若k＜小区质量变化率门限值n-1，则使用测量报告触发门限值n。
(2)邻小区质量变得比门限值好(A4事件)；
(3)邻小区质量比服务小区质量好的偏差高于门限(A3事件、A6事件)。
应理解，对于A3事件、A4事件和A6事件，确定第一测量报告触发门限值的方法与上述A2事件的方法相同，为了简洁，在此不再赘述。
还应理解，该第一信息还可以指示该终端设备根据哪个小区的质量变化率来确定该第一测量报告触发门限值，可以是邻小区质量变化率、服务小区质量变化率和邻小区比服务小区质量好的变差的变化率中的至少一种。
可选地，该第一测量报告触发门限值包括门限a和门限b。
(4)服务小区质量比门限a差，并且邻小区质量比门限b好(A5事件)。
该第一网络设备在第一信息中配置n组测量报告触发门限值：测量报告触发门限值1(a 1，b 1)，测量报告触发门限值2(a 2，b 2)，…，测量报告触发门限值n(a n，b n)。
同时，该第一网络设备在该第一信息中配置相关联的n-1个小区质量变化率门限值：小区质量变化率门限值1(c 1，d 1)，小区质量变化率门限值2(c 2，d 2)，…，小区质量变化率门限值n-1(c n-1，d n-1)。
应理解，上述测量报告触发门限值中c 1、c 2，…，c n-1可以表示服务小区质量变化率门限，d 1、d 2，…，d n-1可以表示邻小区质量变化率门限，可以通过(1)中的方法，根据服务小区质量变化率从c 1、c 2，…，c n-1中确定第一服务小区质量变化率，然后通过第一服务小区质量变化率从a 1、a 2，…，a n中确定门限a；根据邻小区质量变化率从d 1、d 2，…，d n-1中确定第一邻小区质量变化率，然后通过第一服务小区质量变化率从b 1、b 2，…，b n中确定门限b；
还应理解，对于A5事件，该终端设备同时满足服务小区质量比门限a差和邻小区质量比门限b好，才会触发测量报告的上报。
S230，该终端设备根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告，该第一网络设备接收该终端设备发送的第一测量报告；
S240，该第一网络设备根据该第一测量报告，确定是否对该终端设备进行切换；
S250，该第一网络设备向该第二网络设备发送切换请求消息，该第二网络设备接收该第一网络设备发送的该切换请求消息；
S260，该第二网络设备根据该切换请求消息执行准入控制；
S270，该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的该切换请求响应消息；
S280，该第一网络设备根据该切换请求响应消息，向该终端设备发送第一切换命令，该终端设备接收该第一网络设备发送的该第一切换命令，该第一切换命令包括第一切换条件；
S290，该终端设备根据该第一切换条件，进行该终端设备的切换，该切换为从该第一 网络设备到第二网络设备的切换。
应理解，S230-S290与切换方法100的中S120-S140类似，为了简洁，在此不再赘述。
还应理解，该第一切换命令中还可以包括定时器1，该终端设备接收到该第一切换命令后，并不立即执行切换过程，而是启动定时器1，若在定时器1超时前，该终端设备满足该第一切换条件，则该终端设备向满足条件的目标小区进行切换。若在定时器1运行期间切换条件没有满足，当定时器1超时后，该终端设备丢弃该第一切换命令，并使用该第一信息执行步骤S220-S280。
下面结合图6，对本申请实施例的切换方法200进行解释，图6示出了一种确定测量报告触发门限值的示意图，事件类型为服务小区质量变得比测量报告触发门限值差，该第一网络设备为该终端设备配置2组测量报告触发门限值。
例如，如图6所示，若该终端设备向远离该第一网络设备的方向移动，当速度比较快时，由于小区质量变化率较大，高于小区质量变化率门限值1，因此在小区质量达到门限1时触发测量报告。
又例如，当该终端设备的速度缓慢或者静止时，由于小区质量变化率门限值低于小区质量变化率门限值1，因此当小区质量达到门限1时并不触发测量报告，只有在小区质量达到门限2时才能够触发测量报告，从而避免了系统资源的浪费。
本申请实施例的切换方法，通过在测量控制消息中携带至少一个小区质量变化率和至少两个测量报告触发门限值，有助于该终端设备通过实际情况选择合适的测量报告触发门限值，从而有助于避免该终端设备持续触发测量报告和减少终端设备的系统开销。
上面结合图4，详细描述了根据本申请实施例的切换方法200，切换方法100中通过在测量控制消息中携带该第一信息，有助于该终端设备根据实际情况选择合适的测量报告触发门限值，下面结合图7，描述根据本申请实施例的切换方法300，切换方法300中通过在前一次切换中第一网络设备发送给该终端设备的切换命令中携带该第一信息，有助于该终端设备在做下一次切换时根据实际情况选择合适的测量报告触发门限值。
图7示出了根据本申请实施例的切换方法300的示意性流程图，如图7所示，该终端设备可以为图1中的终端设备，该第一网络设备可以为图1中的第一网络设备，该第二网络设备可以为图1中的第二网络设备，该方法300包括：
S310，该第一网络设备根据第二测量报告，向该终端设备发送该第二切换命令，该终端设备接收该第一网络设备根据第二测量报告发送的第二切换命令，该第二切换命令包括第二切换条件和该门限值配置信息。
可选地，该门限值配置信息为该第一信息。
可选地，该第一网络设备根据第二测量报告，向该终端设备发送第二切换命令，包括：
该第一网络设备根据该第二测量报告，向该第二网络设备发送切换请求消息，该第二网络设备接收该第一网络设备根据该第二测量报告发送的该切换请求消息；
该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的切换请求响应消息，该切换请求响应消息包括该门限值配置信息；
该第一网络设备根据该切换请求响应消息，向该终端设备发送该第二切换命令，该终端设备接收该第一网络设备根据该切换请求响应消息发送的该第二切换命令。
具体而言，该第一信息由该第二网络设备配置，该第二网络设备接收到该第一网络设 备发送的切换请求消息后，向该第一网络设备发送该切换请求响应消息，该切换请求响应消息包括由该第二网络设备配置的该第一信息，该第一网络设备接收到该切换请求响应消息后，向该终端设备发送的第二切换命令中携带该第一信息。
可选地，该第一网络设备根据第二测量报告，向该终端设备发送第二切换命令，包括：
该第一网络设备根据该第二测量报告，向该第二网络设备发送切换请求消息，该第二网络设备接收该第一网络设备根据该第二测量报告发送的该切换请求消息；
该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的切换请求响应消息；
该第一网络设备根据该切换请求响应消息，向该终端设备发送该第二切换命令，该终端设备接收该第一网络设备根据该切换请求响应消息发送的该第二切换命令。
具体而言，该第一信息由该第一网络设备配置，该第二网络设备接收到该第一网络设备发送的切换请求消息后，向该第一网络设备发送该切换请求响应消息，该第一网络设备接收到该切换请求响应消息后，向该终端设备发送的第二切换命令中携带该第一信息。
可选地，该第一网络设备根据第二测量报告，向该终端设备发送第二切换命令，包括：
该第一网络设备根据该第二测量报告，向该第二网络设备发送切换请求消息，该第二网络设备接收该第一网络设备根据该第二测量报告发送的该切换请求消息，该切换请求消息包括该第一信息；
该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的切换请求响应消息，该切换请求响应消息包括该第一信息；
该第一网络设备根据该切换请求响应消息，向该终端设备发送该第二切换命令，该终端设备接收该第一网络设备根据该切换请求响应消息发送的该第二切换命令。
具体而言，该第一信息由该第一网络设备配置，该第一网络设备在向该第二网络设备发送的切换请求消息中携带该第一信息，该第二网络设备接收到该切换请求消息后，将该第一信息放入切换请求响应消息中发送给该第一网络设备，该第一网络设备接收到该切换请求响应消息后，向该终端设备发送的第二切换命令中携带该第一信息。
可选地，该第一网络设备根据第二测量报告，向该终端设备发送该第二切换命令之前，该切换方法300还包括：
该第一网络设备向该终端设备发送测量控制消息，该终端设备接收所述第一网络设备发送的测量控制消息，该测量控制消息包括第二测量报告触发门限值；
该终端设备根据所述第二测量报告触发门限值，向所述第一网络设备发送第二测量报告，该第一网络设备接收该终端设备根据该第二测量报告触发门限值发送的该第二测量报告。
应理解，该第二切换命令中还可以包括定时器1，该终端设备接收到该第二切换命令后，并不立即执行切换过程，而是启动定时器1，若在定时器1超时前，该终端设备满足该第二切换条件，则该终端设备向满足条件的目标小区进行切换。若在定时器1运行期间切换条件没有满足，当定时器1超时后，该终端设备丢弃该第二切换命令，并使用该第一信息执行步骤S320-S380。
S320，在预定时间内，该终端设备不满足该第二切换条件，该终端设备根据小区质量变化率和该第一信息，确定该第一测量报告触发门限值。
具体而言，该第一网络设备向该终端设备发送测量控制消息，该测量控制消息包括第二测量报告触发门限值，该终端设备满足该第二测量报告触发门限值之后，会向该第一网络设备发送第二测量报告，该第一网络设备根据第二测量报告，向该终端设备发送该第二切换命令，该第二切换命令中包括第二切换条件和该第一信息，在预定时间内，该终端设备不满足该第二切换条件，则该终端设备根据小区质量变化率和该第一信息，确定该第一测量报告触发门限值。
应理解，该终端设备根据小区质量变化率和所述第一信息，确定所述第一测量报告触发门限值与切换方法200中的S220的过程类似，为了简洁，在此不再赘述。
S330，该终端设备根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告，该第一网络设备接收该终端设备发送的第一测量报告；
S340，该第一网络设备根据该第一测量报告，确定是否对该终端设备进行切换；
S350，该第一网络设备向该第二网络设备发送切换请求消息，该第二网络设备接收该第一网络设备发送的该切换请求消息；
S360，该第二网络设备根据该切换请求消息执行准入控制；
S370，该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的该切换请求响应消息；
S380，该第一网络设备根据该切换请求响应消息，向该终端设备发送第一切换命令，该终端设备接收该第一网络设备发送的该第一切换命令，该第一切换命令包括第一切换条件；
S390，该终端设备根据该第一切换条件，进行该终端设备的切换，该切换为从该第一网络设备到第二网络设备的切换。
应理解，S330-S390与切换方法100的中S120-S140类似，为了简洁，在此不再赘述。
本申请实施例的通过在前一次切换的切换命令中携带至少一个小区质量变化率和至少两个测量报告触发门限值，有助于该终端设备通过实际情况选择合适的测量报告触发门限值，从而有助于避免该终端设备持续触发测量报告和减少终端设备的系统开销。
上面结合图4至图7，详细描述了根据本申请实施例的切换方法200和300，网络侧为终端设备配置多组测量报告触发门限值以及对应的小区质量变化率门限值，该终端设备根据小区信号质量变化率选用其中某组测量报告触发门限值。下面结合图8至图10，描述根据本申请实施例的方法400和500，利用定时器，防止终端设备持续触发测量报告，减少小区边缘低速徘徊或者静止的终端设备的系统开销。
图8示出了根据本申请实施例的切换方法400的示意性流程图，如图8所示，该终端设备可以为图1中的终端设备，该第一网络设备可以为图1中的第一网络设备，该第二网络设备可以为图1中的第二网络设备，该方法400包括：
S410，该第一网络设备向该终端设备发送测量控制消息，该终端设备接收所述第一网络设备发送的测量控制消息，该测量控制消息包括第一测量报告触发门限值。
具体而言，该第一网络设备向该终端设备发送的测量控制消息中包括第一测量报告触发门限值。
S420，该终端设备根据所述第一测量报告触发门限值，向所述第一网络设备发送第一测量报告，该第一网络设备接收该终端设备根据该第一测量报告触发门限值发送的该第一 测量报告；
S430，该第一网络设备根据该第一测量报告，确定是否对该终端设备进行切换；
S440，该第一网络设备向该第二网络设备发送切换请求消息，该第二网络设备接收该第一网络设备发送的该切换请求消息；
S450，该第二网络设备根据该切换请求消息执行准入控制；
S460，该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的该切换请求响应消息；
S470，该第一网络设备根据该切换请求响应消息，向该终端设备发送第一切换命令，该终端设备接收该第一网络设备发送的该第一切换命令，该第一切换命令包括第一切换条件。
应理解，S430-S470与切换方法100中的S131-S135类似，为了简洁，在此不再赘述。
还应理解，相比于S135，S470中的第一切换命令中包括第一切换条件、定时器1和定时器2的配置，定时器1用于指示该第一切换命令的有效时间，定时器2在定时器1后启动，用于限制该终端设备触发测量报告。
还应理解，上述定时器2还可以通过S410中的测量控制消息配置给该终端设备，若该测量控制消息中包括该定时器2，则该第一切换命令中可以不包括该定时器2。
S480，在第一预定时间内，该终端设备不满足该第一切换条件，在第二预定时间内，该终端设备不触发测量报告；
S490，在第二预定时间后，该终端设备根据该第一测量报告触发门限，向该第一网络设备发送第二测量报告。
具体而言，该终端设备在接收到该第一切换命令后，并不立即执行切换过程，而是启动定时器1，定时器1用于指示该第一切换命令的有效时间，定时器2在定时器1后启动，定时器2运行期间，该终端设备不再向该第一网络设备发送测量报告，定时器2超时后，执行步骤S420-S470。
本申请实施例的切换方法，利用定时器，有助于避免终端设备持续触发测量报告，减少小区边缘低速徘徊或者静止的终端设备的系统开销。
图9示出了根据本申请实施例的切换方法500的示意性流程图，通过配置一组特定的门限值，减少小区边缘低速徘徊或者静止的终端设备的系统开销。
如图9所示，该终端设备可以为图1中的终端设备，该第一网络设备可以为图1中的第一网络设备，该第二网络设备可以为图1中的第二网络设备，该方法500包括：
S510，该第一网络设备向该终端设备发送测量控制消息，该终端设备接收所述第一网络设备发送的测量控制消息，该测量控制消息包括第三测量报告触发门限值。
具体而言，该第一网络设备向该终端设备发送的测量控制消息中包括第三测量报告触发门限值。
S520，该终端设备根据所述第三测量报告触发门限值，向所述第一网络设备发送第三测量报告，该第一网络设备接收该终端设备根据该第三测量报告触发门限值发送的该第三测量报告；
S530，该第一网络设备根据该第三测量报告，确定是否对该终端设备进行切换；
S540，该第一网络设备向该第二网络设备发送切换请求消息，该第二网络设备接收该 第一网络设备发送的该切换请求消息；
S550，该第二网络设备根据该切换请求消息执行准入控制。
应理解，S510-S550与切换方法400中的S410-S450类似，为了简洁，在此不再赘述。
S560，该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的该切换请求响应消息；
S570，该第一网络设备根据该切换请求响应消息，向该终端设备发送第三切换命令，该终端设备接收该第一网络设备发送的该第三切换命令，该第三切换命令包括第三切换条件和门限值更新信息。
可选地，该门限值更新信息为第四测量报告触发门限值。
应理解，该门限值更新信息(第四测量报告触发门限值)可以由该第一网络设备配置，也可以由该第二网络设备配置，配置过程与S310中该第一信息的配置过程类似，为了简洁，在此不再赘述。
还应理解，相比于S470，S570中的第三切换命令中除了包括第三切换条件、定时器1和定时器2的配置，还包括第四测量报告触发门限值，定时器1用于指示该第三切换命令的有效时间，定时器2在定时器1后启动，在定时器2运行期间，若该终端设备满足S570中配置的该第四测量报告触发门限值，则该终端设备可以向该第一网络设备发送一条测量报告，若不满足，则不向该第一网络设备发送测量报告。
可选地，该第四测量报告触发门限值对于不同的测量触发时间可能包含一个门限值或者两个门限值：
(1)服务小区质量变得比门限差(A2事件)，1个门限值；
(2)邻小区质量变得比门限好(A4事件)，1个门限值；
(3)邻小区比服务小区质量好的偏差高于门限(A3事件、A6事件)，1个门限值；
(4)服务小区质量比门限a差，并且邻小区质量比门限b好(A5事件)，2个门限值。
S580，在预定时间内，该终端设备不满足该第三切换条件，在预定时间后，该终端设备将该第四测量报告触发门限值确定为该第一测量报告触发门限值。
S590，该终端设备根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告，该第一网络设备接收该终端设备发送的第一测量报告。
应理解，S590以后的过程与切换方法100中S130-S140类似，为了简洁，在此不再赘述。
本申请实施例的切换方法，通过在切换命令中携带一组特定的门限值，有助于避免终端设备持续触发测量报告，减少小区边缘低速徘徊或者静止的终端设备的系统开销。
图10示出了根据本申请实施例的切换方法600的示意性流程图，如图10所示，该终端设备可以为图1中的终端设备，该第一网络设备可以为图1中的第一网络设备，该第二网络设备可以为图1中的第二网络设备，该方法600包括：
S610，该第一网络设备向该终端设备发送测量控制消息，该终端设备接收所述第一网络设备发送的测量控制消息，该测量控制消息包括第三测量报告触发门限值和门限值更新信息。
可选地，该门限值更新信息为第四测量报告触发门限值。
应理解，该第四测量报告触发门限值与S570中的类似，为了简洁，在此不再赘述。
具体而言，该第一网络设备向该终端设备发送的测量控制消息中包括第三测量报告触发门限值和第四测量报告触发门限值。
S620，该终端设备根据所述第三测量报告触发门限值，向所述第一网络设备发送第三测量报告，该第一网络设备接收该终端设备根据该第三测量报告触发门限值发送的该第三测量报告；
S630，该第一网络设备根据该第三测量报告，确定是否对该终端设备进行切换；
S640，该第一网络设备向该第二网络设备发送切换请求消息，该第二网络设备接收该第一网络设备发送的该切换请求消息；
S650，该第二网络设备根据该切换请求消息执行准入控制。
应理解，S610-S650与切换方法500中的S510-S550类似，为了简洁，在此不再赘述。
S660，该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的该切换请求响应消息；
S670，该第一网络设备根据该切换请求响应消息，向该终端设备发送第三切换命令，该终端设备接收该第一网络设备发送的该第三切换命令，该第三切换命令包括第三切换条件。
还应理解，S670中的第三切换命令中除了包括第三切换条件、定时器1和定时器2的配置，定时器1用于指示该第三切换命令的有效时间，定时器2在定时器1后启动，在定时器2运行期间，若该终端设备满足S610测量控制消息中配置的该第四测量报告触发门限值，则该终端设备可以向该第一网络设备发送一条测量报告，若不满足，则不向该第一网络设备发送测量报告。
S680，在预定时间内，该终端设备不满足该第三切换条件，在预定时间后，该终端设备将该第四测量报告触发门限值确定为该第一测量报告触发门限值。
S690，该终端设备根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告，该第一网络设备接收该终端设备发送的第一测量报告。
应理解，S690以后的过程与切换方法100中S130-S140类似，为了简洁，在此不再赘述。
本申请实施例的切换方法，通过在测量控制消息中携带一组特定的门限值，有助于避免终端设备持续触发测量报告，减少小区边缘低速徘徊或者静止的终端设备的系统开销。
上面结合图8至图10，详细得描述了根据本申请实施例的切换方法400、500和600，利用定时器(或者定时器和一组特定的门限值)，从而减小小区边缘低速徘徊或静止情况下的终端设备的系统开销，下面结合图11和图12，详细描述本申请实施例的方法700和800，通过网络设备向该终端设备配置门限值变化步长，从而减小小区边缘低速徘徊或静止情况下的终端设备的系统开销。
图11示出了根据本申请实施例的切换方法700的示意性流程图，如图11所示，该终端设备可以为图1中的终端设备，该第一网络设备可以为图1中的第一网络设备，该第二网络设备可以为图1中的第二网络设备，该方法700包括：
S710，该第一网络设备向该终端设备发送测量控制消息，该终端设备接收所述第一网络设备发送的测量控制消息，该测量控制消息包括第三测量报告触发门限值。
具体而言，该第一网络设备向该终端设备发送的测量控制消息中包括第三测量报告触发门限值。
S720，该终端设备根据所述第三测量报告触发门限值，向所述第一网络设备发送第三测量报告，该第一网络设备接收该终端设备根据该第三测量报告触发门限值发送的该第三测量报告；
S730，该第一网络设备根据该第三测量报告，确定是否对该终端设备进行切换；
S740，该第一网络设备向该第二网络设备发送切换请求消息，该第二网络设备接收该第一网络设备发送的该切换请求消息；
S750，该第二网络设备根据该切换请求消息执行准入控制。
应理解，S710-S750与切换方法500中的S510-S550类似，为了简洁，在此不再赘述。
S760，该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的该切换请求响应消息；
S770，该第一网络设备根据该切换请求响应消息，向该终端设备发送第三切换命令，该终端设备接收该第一网络设备发送的该第三切换命令，该第三切换命令包括第三切换条件和门限值配置信息。
可选地，该门限值配置信息为门限值变化步长。
应理解，该门限值更新信息(门限值变化步长)可以由该第一网络设备配置，也可以由该第二网络设备配置，配置过程与S310中该第一信息的配置过程类似，为了简洁，在此不再赘述。
应理解，该第三切换命令中除了包括第三切换条件、定时器1的配置，还包括门限值变化步长，定时器1用于指示该第一切换命令的有效时间，定时器1超时之前，该终端设备满足该第三切换条件，则该终端设备向满足条件的目标小区切换；若在定时器1运行期间该终端设备不满足该第三切换条件，则当定时器1超时后，该终端设备按照S760第三切换命令中配置的门限值变化步长更新测量报告触发门限值。
S780，在预定时间内，该终端设备不满足该第三切换条件，在预定时间后，该终端设备将该第四测量报告触发门限值确定为该第一测量报告触发门限值。
例如，该门限值变化步长为步长值m，若在定时器1运行期间该终端设备不满足该第三切换条件，则当定时器1超时后，该终端设备可以确定该第一测量报告触发门限值为该第三测量报告触发门限值加上该步长值m。
如图6所示，该第三测量报告触发门限值可以为门限1，若在定时器1运行期间该终端设备不满足该第三切换条件，则当定时器1超时后，该终端设备可以确定该第一测量报告触发门限值为门限2，门限2即为该第三测量报告触发门限值加上该步长值m。
S790，该终端设备根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告，该第一网络设备接收该终端设备发送的第一测量报告。
应理解，S790以后的过程与切换方法100中S130-S140类似，为了简洁，在此不再赘述。
图12示出了根据本申请实施例的切换方法800的示意性流程图，如图12所示，该终端设备可以为图1中的终端设备，该第一网络设备可以为图1中的第一网络设备，该第二网络设备可以为图1中的第二网络设备，该方法800包括：
S810，该第一网络设备向该终端设备发送测量控制消息，该终端设备接收所述第一网络设备发送的测量控制消息，该测量控制消息包括第三测量报告触发门限值和门限值更新信息。
可选地，该门限值更新信息为门限值变化步长。
具体而言，该第一网络设备向该终端设备发送的测量控制消息中包括第三测量报告触发门限值和门限值变化步长。
S820，该终端设备根据所述第三测量报告触发门限值，向所述第一网络设备发送第三测量报告，该第一网络设备接收该终端设备根据该第三测量报告触发门限值发送的该第三测量报告；
S830，该第一网络设备根据该第三测量报告，确定是否对该终端设备进行切换；
S840，该第一网络设备向该第二网络设备发送切换请求消息，该第二网络设备接收该第一网络设备发送的该切换请求消息；
S850，该第二网络设备根据该切换请求消息执行准入控制。
应理解，S820-S850与切换方法700中的S720-S750类似，为了简洁，在此不再赘述。
S860，该第二网络设备向该第一网络设备发送切换请求响应消息，该第一网络设备接收该第二网络设备发送的该切换请求响应消息；
S870，该第一网络设备根据该切换请求响应消息，向该终端设备发送第三切换命令，该终端设备接收该第一网络设备发送的该第三切换命令，该第三切换命令包括第三切换条件。
应理解，该第三切换命令中包括第三切换条件、定时器1的配置，定时器1用于指示该第一切换命令的有效时间，定时器1超时之前，该终端设备满足该第三切换条件，则该终端设备向满足条件的目标小区切换；若在定时器1运行期间该终端设备不满足该第三切换条件，则当定时器1超时后，该终端设备按照S810测量控制消息中配置的门限值变化步长更新测量报告触发门限值。
S880，在预定时间内，该终端设备不满足该第三切换条件，在预定时间后，该终端设备将该第四测量报告触发门限值确定为该第一测量报告触发门限值。
例如，该门限值变化步长为步长值m，若在定时器1运行期间该终端设备不满足该第三切换条件，则当定时器1超时后，该终端设备可以确定该第一测量报告触发门限值为该第三测量报告触发门限值加上该步长值m。
如图6所示，该第三测量报告触发门限值可以为门限1，若在定时器1运行期间该终端设备不满足该第三切换条件，则当定时器1超时后，该终端设备可以确定该第一测量报告触发门限值为门限2，门限2即为该第三测量报告触发门限值加上该步长值m。
S890，该终端设备根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告，该第一网络设备接收该终端设备发送的第一测量报告。
应理解，S890以后的过程与切换方法100中S130-S140类似，为了简洁，在此不再赘述。
本申请实施例的切换方法，通过网络侧配置门限值变化步长，有助于避免终端设备持续触发测量报告，减少小区边缘低速徘徊或者静止的终端设备的系统开销。
上文结合图1至图12，详细得描述了根据本申请实施例的切换方法，下面结合图13 至图20，详细得描述根据本申请实施例的终端设备和网络设备。
图13示出了根据本申请实施例的终端设备900的示意性框图，如图13所示，该终端设备900包括：
处理模块910，用于根据门限值配置信息，确定第一测量报告触发门限值，该门限值配置信息包括第一信息或门限值更新信息，该第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值；
该处理模块910还用于根据该第一测量报告触发门限值，控制收发模块920向第一网络设备发送第一测量报告；
该收发模块920还用于接收该第一网络设备根据该第一测量报告发送的第一切换命令，该第一切换命令用于指示该终端设备从该第一网络设备切换到第二网络设备。
可选地，该门限值配置信息包括该第一信息，该收发模块920还用于接收该第一网络设备发送的测量控制消息，该测量控制消息包括该第一信息；
其中，该处理模块910具体用于：根据小区质量变化率和该第一信息，确定该第一测量报告触发门限值。
可选地，该门限值配置信息包括该第一信息，该收发模块920还用于接收该第一网络设备根据第二测量报告发送的第二切换命令，该第二切换命令包括第二切换条件和该第一信息；
其中，该处理模块910具体用于：
在预定时间内，该终端设备不满足该第二切换条件，根据小区质量变化率和该第一信息，确定该第一测量报告触发门限值。
可选地，该处理模块910具体用于：
根据小区质量变化率和该至少一个小区质量变化率门限值，确定第一小区质量变化率门限值；
根据该第一小区质量变化率门限值，从该至少两个测量报告触发门限值中确定该第一测量报告触发门限值。
可选地，该门限值配置信息包括门限值更新信息，该收发模块920还用于接收该第一网络设备根据第三测量报告发送的第三切换命令，该第三切换命令包括第三切换条件和该门限值更新信息；
其中，该处理模块910具体用于：
在预定时间内，不满足该第三切换条件，根据该门限值更新信息，确定该第一测量报告触发门限值。
可选地，该门限值配置信息包括门限值更新信息，该收发模块920还用于接收该第一网络设备发送的测量控制消息，该测量控制消息包括第三测量报告触发门限值和该门限值更新信息；
该处理模块910根据该第三测量报告触发门限值，控制该收发模块920向该第一网络设备发送第三测量报告；
该收发模块920还用于接收该第一网络设备根据该第三测量报告发送的第三切换命令，该第三切换命令包括第三切换条件；
其中，该处理模块910具体用于：
在预定时间内，该终端设备不满足该第三切换条件，该终端设备根据该门限值更新信息，确定该第一测量报告触发门限值。
可选地，该门限值更新信息为第四测量报告触发门限值，该处理模块910具体用于：
在预定时间内，不满足该第三切换条件；
在预定时间后，将该第四测量报告触发门限值确定为该第一测量报告触发门限值。
可选地，该门限值更新信息为门限值变化步长。
可选地，该小区质量变化率门限值包括邻小区质量变化率门限值、服务小区质量变化率门限值、该邻小区与该服务小区质量偏差的变化率门限值中的至少一种。
可选地，该测量报告触发门限值包括邻小区质量门限值、服务小区质量门限值、该邻小区与该服务小区质量偏差的门限值中的至少一种。
图14示出了根据本申请实施例的终端设备1000的示意性框图，如图14所示，该终端设备1000包括：
收发模块1010，用于接收第一网络设备发送的第一测量控制消息，该第一测量控制消息包括第一测量报告触发门限值；
处理模块1020，用于根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告；
该收发模块1010还用于接收该第一网络设备根据该第一测量报告发送的第一切换命令，该第一切换命令包括第一切换条件；
在第一预定时间内，不满足该第一切换条件，在第二预定时间后，该处理模块1020还用于根据该第一测量报告触发门限，向该第一网络设备发送第二测量报告。
图15示出了根据本申请实施例的网络设备1100的示意性框图，如图15所示，该网络设备1100包括：
收发模块1110，用于向终端设备发送门限值配置信息，该门限值配置信息用于终端设备确定第一测量报告触发门限，该门限值配置信息包括第一信息或门限值更新信息，该第一信息包括至少一个小区质量变化率门限值和该至少两个测量报告触发门限值；
该收发模块1110还用于接收该终端设备根据该第一测量报告触发门限值发送的第一测量报告；
处理模块1120，用于根据该第一测量报告，控制该收发模块1110向该终端设备发送第一切换命令，该第一切换命令用于指示该终端设备从该第一网络设备切换到第二网络设备。
可选地，该收发模块1110具体用于：
向该终端设备发送测量控制消息，该测量控制消息包括该门限值配置信息。
可选地，该收发模块1110还用于向该终端设备发送测量控制消息，该测量控制消息包括第二小区质量门限值；
该收发模块1110还用于接收该终端设备根据该第二小区质量门限值发送的第二测量报告；
其中，该收发模块1110具体用于：
根据第二测量报告，向该终端设备发送第二切换命令，该第二切换命令包括该门限值配置信息。
可选地，该处理模块1120具体用于：
根据该第二测量报告，控制该收发模块向该第二网络设备发送切换请求消息；
控制该收发模块接收该第二网络设备发送的切换请求响应消息，该切换请求响应消息包括该门限值配置信息；
根据该切换请求响应消息，控制该收发模块向该终端设备发送该第二切换命令。
可选地，该处理模块1120具体用于：
根据该第二测量报告，控制该收发模块向该第二网络设备发送切换请求消息；
控制该收发模块接收该第二网络设备发送的切换请求响应消息；
根据该切换请求响应消息，控制该收发模块向该终端设备发送该第二切换命令。
可选地，该处理模块1120具体用于：
根据该第二测量报告，控制该收发模块向该第二网络设备发送切换请求消息，该切换请求消息包括该门限值配置信息；
控制该收发模块接收该第二网络设备发送的切换请求响应消息，该切换请求响应消息包括该门限值配置信息；
根据该切换请求响应消息，控制该收发模块向该终端设备发送该第二切换命令。
可选地，该门限值更新信息为第四测量报告触发门限值或门限值变化步长。
可选地，该小区质量变化率门限值包括邻小区质量变化率门限值、服务小区质量变化率门限值、该邻小区与该服务小区质量偏差的变化率门限值中的至少一种。
可选地，该测量报告触发门限值包括邻小区质量门限值、服务小区质量门限值、该邻小区与该服务小区质量偏差的门限值中的至少一种。
图16根据本申请实施例的网络设备1200的示意性框图，如图16所示，该网络设备1200包括：
收发模块1210，用于接收第一网络设备发送的切换请求消息；
处理模块1220，用于根据该切换请求消息，向该第一网络设备发送切换请求响应消息，该切换请求响应消息包括门限值配置信息，该门限值配置信息包括第一信息或门限值更新信息，该第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值。
可选地，该切换请求消息中包括该门限值配置信息。
可选地，该门限值更新信息为第四测量报告触发门限值或门限值变化步长。
可选地，该小区质量变化率门限值包括邻小区质量变化率门限值、服务小区质量变化率门限值、该邻小区与该服务小区质量偏差的变化率门限值中的至少一种。
可选地，该测量报告触发门限值包括邻小区质量门限值、服务小区质量门限值、该邻小区与该服务小区质量偏差的门限值中的至少一种。
图17示出了本申请实施例的终端设备1300的示意性框图。该终端设备1300包括一个或多个处理器1310、存储器1320和通信接口1330；所述一个或多个处理器1310、所述存储器1320和所述通信接口1330均通过内部通路连接；
所述存储器1320，用于存储计算机执行指令；
所述一个或多个处理器1310，用于执行所述存储器1320存储的计算机执行指令，使得所述终端设备1300可以通过所述通信接口1330与其他装置进行数据交互来执行上述实 施例中提供的切换方法。
其中，该一个或多个处理器1310用于执行以下操作：
根据门限值配置信息，确定第一测量报告触发门限值，该门限值配置信息包括第一信息或门限值更新信息，该第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值；
根据该第一测量报告触发门限值，控制通信接口1330向第一网络设备发送第一测量报告；
通过通信接口1330接收该第一网络设备根据该第一测量报告发送的第一切换命令，该第一切换命令用于指示该终端设备从该第一网络设备切换到第二网络设备。
应理解，终端设备1300可以具体为上述实施例中的终端设备900，并且可以用于执行上述方法实施例中与终端设备900对应的各个步骤和/或流程。
图18示出了本申请实施例的终端设备1400的示意性框图。该终端设备1400包括一个或多个处理器1410、存储器1420和通信接口1430；所述一个或多个处理器1410、所述存储器1420和所述通信接口1430均通过内部通路连接；
所述存储器1420，用于存储计算机执行指令；
所述一个或多个处理器1410，用于执行所述存储器1420存储的计算机执行指令，使得所述服务器1400可以通过所述通信接口1430与其他装置进行数据交互来执行上述实施例中提供的切换方法。
其中，该一个或多个处理器1410用于执行以下操作：
通过通信接口1430接收第一网络设备发送的第一测量控制消息，该第一测量控制消息包括第一测量报告触发门限值；
根据该第一测量报告触发门限值，向第一网络设备发送第一测量报告；
通过通信接口1430接收该第一网络设备根据该第一测量报告发送的第一切换命令，该第一切换命令包括第一切换条件；
在第一预定时间内，不满足该第一切换条件，在第二预定时间后，根据该第一测量报告触发门限，向该第一网络设备发送第二测量报告。
应理解，网络设备1400可以具体为上述实施例中的网络设备1000，并且可以用于执行上述方法实施例中与网络设备1000对应的各个步骤和/或流程。
图19示出了本申请实施例的网络设备1500的示意性框图。该网络设备1500包括一个或多个处理器1510、存储器1520和通信接口1530；所述一个或多个处理器1510、所述存储器1520和所述通信接口1530均通过内部通路连接；
所述存储器1520，用于存储计算机执行指令；
所述一个或多个处理器1510，用于执行所述存储器1520存储的计算机执行指令，使得所述终端设备1500可以通过所述通信接口1530与其他装置进行数据交互来执行上述实施例中提供的切换方法。
其中，该一个或多个处理器1510用于执行以下操作：
通过通信接口1530向终端设备发送门限值配置信息，该门限值配置信息用于终端设备确定第一测量报告触发门限，该门限值配置信息包括第一信息或门限值更新信息，该第一信息包括至少一个小区质量变化率门限值和该至少两个测量报告触发门限值；
通过通信接口1530接收该终端设备根据该第一测量报告触发门限值发送的第一测量报告；
根据该第一测量报告，控制该收发模块向该终端设备发送第一切换命令，该第一切换命令用于指示该终端设备从该第一网络设备切换到第二网络设备。
应理解，网络设备1500可以具体为上述实施例中的网络设备1100，并且可以用于执行上述方法实施例中与网络设备1100对应的各个步骤和/或流程。
图20示出了本申请实施例的网络设备1600的示意性框图。该网络设备1600包括一个或多个处理器1610、存储器1620和通信接口1630；所述一个或多个处理器1610、所述存储器1620和所述通信接口1630均通过内部通路连接；
所述存储器1620，用于存储计算机执行指令；
所述一个或多个处理器1610，用于执行所述存储器1620存储的计算机执行指令，使得所述网络设备1600可以通过所述通信接口1630与其他装置进行数据交互来执行上述实施例中提供的切换方法。
其中，该一个或多个处理器1610用于执行以下操作：
通过通信接口1630接收第一网络设备发送的切换请求消息；
根据该切换请求消息，向该第一网络设备发送切换请求响应消息，该切换请求响应消息包括门限值配置信息，该门限值配置信息包括第一信息或门限值更新信息，该第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值。
应理解，网络设备1600可以具体为上述实施例中的网络设备1200，并且可以用于执行上述方法实施例中与网络设备1200对应的各个步骤和/或流程。
本申请实施例还提供了一种芯片系统，该芯片系统包括：一个或多个处理器、一个或多个存储器和接口电路，所述接口电路负责所述芯片系统与外界的信息交互，所述一个或多个存储器、所述接口电路和所述一个或多个处理器通过线路互联，所述一个或多个存储器中存储有指令；所述指令被所述一个或多个处理器执行，以使得所述终端设备或网络设备可以执行对应于上述方法的终端设备或网络设备的操作。
本申请实施例还提供了一种通信系统，包括：终端设备，和/或，网络设备；其中，所述终端设备为上述各个方面所述的终端设备，所述网络设备为上述各个方面所述的网络设备。
本申请实施例还提供了一种计算机程序产品，应用于网络设备中，所述计算机程序产品包括一系列指令，当所述指令被运行时，以使得所述终端设备或终端设备可以执行对应于上述方法的终端设备或网络设备的操作。
在本申请实施例中，应注意，本申请实施例上述的方法实施例可以应用于处理器中，或者由处理器实现。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，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的一个或多个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品可以包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用 介质可以是磁性介质(例如，软盘、硬盘、磁盘)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
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。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例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以所述权利要求的保护范围为准。

Claims (40)

  1. 一种切换方法，其特征在于，包括：
    终端设备根据门限值配置信息，确定第一测量报告触发门限值，所述门限值配置信息包括第一信息或门限值更新信息，所述第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值；
    所述终端设备根据所述第一测量报告触发门限值，向第一网络设备发送第一测量报告；
    所述终端设备接收来自于所述第一网络设备的第一切换命令，所述第一切换命令用于指示所述终端设备从所述第一网络设备切换到第二网络设备。
  2. 根据权利要求1所述的方法，其特征在于，所述门限值配置信息包括所述第一信息，所述方法还包括：
    所述终端设备接收来自于所述第一网络设备的测量控制消息，所述测量控制消息包括所述第一信息；
    其中，所述终端设备根据门限值配置信息，确定第一测量报告触发门限值，包括：
    所述终端设备根据小区质量变化率和所述第一信息，确定所述第一测量报告触发门限值。
  3. 根据权利要求1所述的方法，其特征在于，所述门限值配置信息包括所述第一信息，所述方法还包括：
    所述终端设备接收来自于所述第一网络设备的第二切换命令，所述第二切换命令包括第二切换条件和所述第一信息；
    其中，所述终端设备根据门限值配置信息，确定第一测量报告触发门限值，包括：
    在预定时间内，所述终端设备不满足所述第二切换条件，所述终端设备根据小区质量变化率和所述第一信息，确定所述第一测量报告触发门限值。
  4. 根据权利要求2或3所述的方法，其特征在于，所述终端设备根据小区质量变化率和所述第一信息，确定所述第一测量报告触发门限值，包括：
    所述终端设备根据小区质量变化率和所述至少一个小区质量变化率门限值，确定第一小区质量变化率门限值；
    所述终端设备根据所述第一小区质量变化率门限值，从所述至少两个测量报告触发门限值中确定所述第一测量报告触发门限值。
  5. 根据权利要求1所述的方法，其特征在于，所述门限值配置信息包括门限值更新信息，所述方法还包括：
    所述终端设备接收来自于所述第一网络设备的第三切换命令，所述第三切换命令包括第三切换条件和所述门限值更新信息；
    其中，所述终端设备根据门限值配置信息，确定第一测量报告触发门限值，包括：
    在预定时间内，所述终端设备不满足所述第三切换条件，所述终端设备根据所述门限值更新信息，确定所述第一测量报告触发门限值。
  6. 根据权利要求1所述的方法，其特征在于，所述门限值配置信息包括门限值更新 信息，所述方法还包括：
    所述终端设备接收来自于所述第一网络设备的测量控制消息，所述测量控制消息包括第三测量报告触发门限值和所述门限值更新信息；
    所述终端设备根据所述第三测量报告触发门限值，向所述第一网络设备发送第三测量报告；
    所述终端设备接收来自于所述第一网络设备的第三切换命令，所述第三切换命令包括第三切换条件；
    其中，所述终端设备根据门限值配置信息，确定第一测量报告触发门限值，包括：
    在预定时间内，所述终端设备不满足所述第三切换条件，所述终端设备根据所述门限值更新信息，确定所述第一测量报告触发门限值。
  7. 根据权利要求5或6所述的方法，其特征在于，所述门限值更新信息为第四测量报告触发门限值，所述终端设备根据所述门限值更新信息，确定所述第一测量报告触发门限值，包括：
    在预定时间内，所述终端设备不满足所述第三切换条件；
    在预定时间后，所述终端设备将所述第四测量报告触发门限值确定为所述第一测量报告触发门限值。
  8. 根据权利要5或6所述的方法，其特征在于，所述门限值更新信息为门限值变化步长。
  9. 根据权利要求1至4中任一项所述的方法，其特征在于，所述小区质量变化率门限值包括邻小区质量变化率门限值、服务小区质量变化率门限值、所述邻小区与所述服务小区质量偏差的变化率门限值中的至少一种。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述测量报告触发门限值包括邻小区质量门限值、服务小区质量门限值、所述邻小区与所述服务小区质量偏差的门限值中的至少一种。
  11. 一种切换方法，其特征在于，包括：
    终端设备接收来自于第一网络设备的第一测量控制消息，所述第一测量控制消息包括第一测量报告触发门限值；
    所述终端设备根据所述第一测量报告触发门限值，向第一网络设备发送第一测量报告；
    所述终端设备接收来自于所述第一网络设备的第一切换命令，所述第一切换命令包括第一切换条件；
    在第一预定时间内，所述终端设备不满足所述第一切换条件，在第二预定时间后，所述终端设备根据所述第一测量报告触发门限，向所述第一网络设备发送第二测量报告。
  12. 一种切换方法，其特征在于，包括：
    第一网络设备向终端设备发送门限值配置信息，所述门限值配置信息用于终端设备确定第一测量报告触发门限，所述门限值配置信息包括第一信息或门限值更新信息，所述第一信息包括至少一个小区质量变化率门限值和所述至少两个测量报告触发门限值；
    所述第一网络设备接收来自于所述终端设备的第一测量报告；
    所述第一网络设备根据所述第一测量报告，向所述终端设备发送第一切换命令，所述 第一切换命令用于指示所述终端设备从所述第一网络设备切换到第二网络设备。
  13. 根据权利要求12所述的方法，其特征在于，所述第一网络设备向终端设备发送门限值配置信息，包括：
    所述第一网络设备向所述终端设备发送测量控制消息，所述测量控制消息包括所述门限值配置信息。
  14. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备向所述终端设备发送测量控制消息，所述测量控制消息包括第二小区质量门限值；
    所述第一网络设备接收来自于所述终端设备的第二测量报告；
    其中，所述第一网络设备向终端设备发送门限值配置信息，包括：
    所述第一网络设备根据第二测量报告，向所述终端设备发送第二切换命令，所述第二切换命令包括所述门限值配置信息。
  15. 根据权利要求14所述的方法，其特征在于，所述第一网络设备根据第二测量报告，向所述终端设备发送第二切换命令，包括：
    所述第一网络设备根据所述第二测量报告，向所述第二网络设备发送切换请求消息；
    所述第一网络设备接收来自于所述第二网络设备的切换请求响应消息，所述切换请求响应消息包括所述门限值配置信息；
    所述第一网络设备根据所述切换请求响应消息，向所述终端设备发送所述第二切换命令。
  16. 根据权利要求14所述的方法，其特征在于，所述第一网络设备根据第二测量报告，向所述终端设备发送第二切换命令，包括：
    所述第一网络设备根据所述第二测量报告，向所述第二网络设备发送切换请求消息；
    所述第一网络设备接收来自于所述第二网络设备的切换请求响应消息；
    所述第一网络设备根据所述切换请求响应消息，向所述终端设备发送所述第二切换命令。
  17. 根据权利要求14所述的方法，其特征在于，所述第一网络设备根据第二测量报告，向所述终端设备发送第二切换命令，包括：
    所述第一网络设备根据所述第二测量报告，向所述第二网络设备发送切换请求消息，所述切换请求消息包括所述门限值配置信息；
    所述第一网络设备接收来自于所述第二网络设备的切换请求响应消息，所述切换请求响应消息包括所述门限值配置信息；
    所述第一网络设备根据所述切换请求响应消息，向所述终端设备发送所述第二切换命令。
  18. 一种终端设备，其特征在于，包括：
    处理模块，用于根据门限值配置信息，确定第一测量报告触发门限值，所述门限值配置信息包括第一信息或门限值更新信息，所述第一信息包括至少一个小区质量变化率门限值和至少两个测量报告触发门限值；
    所述处理模块还用于根据所述第一测量报告触发门限值，控制收发模块向第一网络设备发送第一测量报告；
    所述收发模块还用于接收来自于所述第一网络设备的第一切换命令，所述第一切换命令用于指示所述终端设备从所述第一网络设备切换到第二网络设备。
  19. 根据权利要求18所述的终端设备，其特征在于，所述门限值配置信息包括所述第一信息，所述收发模块还用于接收来自于所述第一网络设备的测量控制消息，所述测量控制消息包括所述第一信息；
    其中，所述处理模块具体用于：根据小区质量变化率和所述第一信息，确定所述第一测量报告触发门限值。
  20. 根据权利要求18所述的终端设备，其特征在于，所述门限值配置信息包括所述第一信息，所述收发模块还用于接收来自于所述第一网络设备的第二切换命令，所述第二切换命令包括第二切换条件和所述第一信息；
    其中，所述处理模块具体用于：
    在预定时间内，所述终端设备不满足所述第二切换条件，根据小区质量变化率和所述第一信息，确定所述第一测量报告触发门限值。
  21. 根据权利要求19或20所述的终端设备，其特征在于，所述处理模块具体用于：
    根据小区质量变化率和所述至少一个小区质量变化率门限值，确定第一小区质量变化率门限值；
    根据所述第一小区质量变化率门限值，从所述至少两个测量报告触发门限值中确定所述第一测量报告触发门限值。
  22. 根据权利要求18所述的终端设备，其特征在于，所述门限值配置信息包括门限值更新信息，所述收发模块还用于接收来自于所述第一网络设备的第三切换命令，所述第三切换命令包括第三切换条件和所述门限值更新信息；
    其中，所述处理模块具体用于：
    在预定时间内，不满足所述第三切换条件，根据所述门限值更新信息，确定所述第一测量报告触发门限值。
  23. 根据权利要求18所述的终端设备，其特征在于，所述门限值配置信息包括门限值更新信息，所述收发模块还用于接收来自于所述第一网络设备的测量控制消息，所述测量控制消息包括第三测量报告触发门限值和所述门限值更新信息；
    所述处理模块根据所述第三测量报告触发门限值，控制所述收发模块向所述第一网络设备发送第三测量报告；
    所述收发模块还用于接收来自于所述第一网络设备的第三切换命令，所述第三切换命令包括第三切换条件；
    其中，所述处理模块具体用于：
    在预定时间内，所述终端设备不满足所述第三切换条件，所述终端设备根据所述门限值更新信息，确定所述第一测量报告触发门限值。
  24. 根据权利要求22或23所述的终端设备，其特征在于，所述门限值更新信息为第四测量报告触发门限值，所述处理模块具体用于：
    在预定时间内，不满足所述第三切换条件；
    在预定时间后，将所述第四测量报告触发门限值确定为所述第一测量报告触发门限值。
  25. 根据权利要求22或23所述的终端设备，其特征在于，所述门限值更新信息为门限值变化步长。
  26. 根据权利要求18至21中任一项所述的终端设备，其特征在于，所述小区质量变化率门限值包括邻小区质量变化率门限值、服务小区质量变化率门限值、所述邻小区与所述服务小区质量偏差的变化率门限值中的至少一种。
  27. 根据权利要求18至26中任一项所述的终端设备，其特征在于，所述测量报告触发门限值包括邻小区质量门限值、服务小区质量门限值、所述邻小区与所述服务小区质量偏差的门限值中的至少一种。
  28. 一种终端设备，其特征在于，包括：
    收发模块，用于接收来自于第一网络设备的第一测量控制消息，所述第一测量控制消息包括第一测量报告触发门限值；
    处理模块，用于根据所述第一测量报告触发门限值，向第一网络设备发送第一测量报告；
    所述收发模块还用于接收来自于所述第一网络设备的第一切换命令，所述第一切换命令包括第一切换条件；
    在第一预定时间内，不满足所述第一切换条件，在第二预定时间后，所述处理模块还用于根据所述第一测量报告触发门限，向所述第一网络设备发送第二测量报告。
  29. 一种网络设备，其特征在于，包括：
    收发模块，用于向终端设备发送门限值配置信息，所述门限值配置信息用于终端设备确定第一测量报告触发门限，所述门限值配置信息包括第一信息或门限值更新信息，所述第一信息包括至少一个小区质量变化率门限值和所述至少两个测量报告触发门限值；
    所述收发模块还用于接收来自于所述终端设备的第一测量报告；
    处理模块，用于根据所述第一测量报告，控制所述收发模块向所述终端设备发送第一切换命令，所述第一切换命令用于指示所述终端设备从所述第一网络设备切换到第二网络设备。
  30. 根据权利要求29所述的网络设备，其特征在于，所述收发模块具体用于：
    向所述终端设备发送测量控制消息，所述测量控制消息包括所述门限值配置信息。
  31. 根据权利要求29所述的网络设备，其特征在于，所述收发模块还用于向所述终端设备发送测量控制消息，所述测量控制消息包括第二小区质量门限值；
    所述收发模块还用于接收来自于所述终端设备的第二测量报告；
    其中，所述收发模块具体用于：
    根据第二测量报告，向所述终端设备发送第二切换命令，所述第二切换命令包括所述门限值配置信息。
  32. 根据权利要求31所述的网络设备，其特征在于，所述处理模块具体用于：
    根据所述第二测量报告，控制所述收发模块向所述第二网络设备发送切换请求消息；
    控制所述收发模块接收来自于所述第二网络设备的切换请求响应消息，所述切换请求响应消息包括所述门限值配置信息；
    根据所述切换请求响应消息，控制所述收发模块向所述终端设备发送所述第二切换命令。
  33. 根据权利要求31所述的网络设备，其特征在于，所述处理模块具体用于：
    根据所述第二测量报告，控制所述收发模块向所述第二网络设备发送切换请求消息；
    控制所述收发模块接收来自于所述第二网络设备的切换请求响应消息；
    根据所述切换请求响应消息，控制所述收发模块向所述终端设备发送所述第二切换命令。
  34. 根据权利要求31所述的网络设备，其特征在于，所述处理模块具体用于：
    根据所述第二测量报告，控制所述收发模块向所述第二网络设备发送切换请求消息，所述切换请求消息包括所述门限值配置信息；
    控制所述收发模块接收来自于所述第二网络设备的切换请求响应消息，所述切换请求响应消息包括所述门限值配置信息；
    根据所述切换请求响应消息，控制所述收发模块向所述终端设备发送所述第二切换命令。
  35. 一种装置，其特征在于，包括：处理器，所述处理器与存储器耦合；
    存储器，用于存储计算机程序；
    处理器，用于执行所述存储器中存储的计算机程序，以使得所述装置执行如权利要求1-11或12-17中任一项所述的方法。
  36. 一种装置，其特征在于，包括：处理器，存储器和收发器；
    所述存储器，用于存储计算机程序；
    所述处理器，用于执行所述存储器中存储的计算机程序，以使得所述装置执行如权利要求1-11或12-17中任一项所述的方法。
  37. 一种处理器，其特征在于，所述处理器包括：至少一种电路，用于执行如权利要求1-11或12-17中任一项所述的方法。
  38. 一种可读存储介质，包括程序或指令，当所述程序或指令在计算机上运行时，如权利要求1-11或12-17中任意一项所述的方法被执行。
  39. 一种计算机程序，包括程序或指令，当所述程序或指令在计算机上运行时，如权利要求1-11或12-17中任意一项所述的方法被执行。
  40. 一种装置，其特征在于，用于执行如权利要求1-11或12-17中任一项所述的方法。
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