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WO2018133831A1 - Procédé de commutation automatique pour terminal, station de base, et terminal - Google Patents

Procédé de commutation automatique pour terminal, station de base, et terminal Download PDF

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Publication number
WO2018133831A1
WO2018133831A1 PCT/CN2018/073364 CN2018073364W WO2018133831A1 WO 2018133831 A1 WO2018133831 A1 WO 2018133831A1 CN 2018073364 W CN2018073364 W CN 2018073364W WO 2018133831 A1 WO2018133831 A1 WO 2018133831A1
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WO
WIPO (PCT)
Prior art keywords
automatic
base station
terminal
automatic switching
handover
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/073364
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English (en)
Chinese (zh)
Inventor
孙立新
丁颖哲
周明宇
路杨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baicells Technologies Co Ltd
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Baicells Technologies Co Ltd
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Filing date
Publication date
Application filed by Baicells Technologies Co Ltd filed Critical Baicells Technologies Co Ltd
Publication of WO2018133831A1 publication Critical patent/WO2018133831A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—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
    • H04W36/00835—Determination of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • 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
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a method, a base station, and a terminal for automatically switching a terminal.
  • MF Multe Fire
  • LTE Long Term Evolution
  • an unlicensed band carrier can independently provide services without using a licensed band carrier.
  • the MF physical layer introduces a WiFi-like carrier sensing technology (LBT). , Listen Before Talk) mechanism.
  • LBT WiFi-like carrier sensing technology
  • the MF introduces a Discovery Reference Signal (DRS), which includes the main downlink common control signals, including system broadcast and primary synchronization signal (PSS, Primary Sync). Signal), Secondary Synchronization Signal (SSS), Enhanced Primary Sync Signal (ePSS), Enhanced Secondary Sync Signal (eSSS), Cell Reference Signal (CRS, Cell Reference Signal) , Master Information Block (MIB) and Enhanced System Information Block (SIB-MF, System Information Block Multefire).
  • DRS Discovery Reference Signal
  • PSS System broadcast and primary synchronization signal
  • SSS Secondary Synchronization Signal
  • ePSS Enhanced Primary Sync Signal
  • eSSS Enhanced Secondary Sync Signal
  • CRS Cell Reference Signal
  • MIB Master Information Block
  • SIB-MF Enhanced System Information Block
  • SIB-MF System Information Block Multefire
  • the MF cell transmits the CRS only in the DRS subframe or other subframes that are transmitted by the Physical Downlink Shared Channel (PDSCH). Therefore, the UE can perform channel measurement on the MF serving cell or the MF neighboring cell only in the DMTC window. Used for cell selection, cell reselection or handover.
  • the eNB may send the DMTC information of the serving cell, the intra-frequency neighboring cell, and the inter-frequency neighboring cell to the UE, so that the UE obtains the DRS transmission time window of the MF serving cell, the intra-frequency neighboring cell, and the inter-frequency neighboring cell according to the DMTC information to perform channel measurement. .
  • the MF provides two basic access mode network architectures, namely, a Public Land Mobile Network (PLMN) access mode and a Neutral Host Network (NHN) access mode.
  • the NH access mode is a unified planning and self-organizing neutral network introduced by MF.
  • One NHN can be shared to multiple service providers at the same time.
  • the MF RAN Radio Access Network
  • the network CN, Core Network
  • the PLMN access mode is a network mode of the 3GPP CN in which the MF RAN is connected to the mobile operator, and the UE may perform an S1 or X2 handover between the MF RAN of the PLMN access mode and the 3GPP RAN, and send the PLMN ID list in the broadcast message of the MF cell.
  • there is also a hybrid access mode in which the MF RAN is simultaneously connected to the NHN CN and the 3GPP CN, and the NHN-ID, PSP-ID, and PLMN ID list are simultaneously broadcast in the broadcast message of the MF cell.
  • the measurement result of the terminal located in the MF cell satisfies the handover condition, if the channel is occupied according to the LBT mechanism, the measurement report cannot be sent. Similarly, after receiving the measurement report of the terminal, the MF cell monitors the channel according to the LBT mechanism. When it is occupied, it will not be able to send a switching command, resulting in a too long switching delay. Therefore, a terminal autonomous handover is supported in the MF system. When the terminal detects that the channel quality of the current access cell and the neighboring cell meets the handover condition, the terminal does not need to wait for the handover command of the current access cell to automatically initiate random access to the target cell.
  • the terminal To access the target cell, that is, when the terminal detects that the channel quality of the current access cell and the neighboring cell meets the handover condition, the terminal does not send a measurement report to the current cell and waits for the handover command of the current cell to reduce the handover delay.
  • the source base station may send a handover preparation request to the automatic handover candidate target base station of the terminal, but the handover preparation for the automatic handover is different from the handover preparation in the traditional handover.
  • the traditional handover when the terminal meets the handover condition, the source is used.
  • the base station selects the target base station according to the measurement result of the terminal and sends a handover preparation request to the target base station.
  • the related technology does not specify the time when the source base station initiates the handover preparation to the target base station, and if there is no suitable handover preparation time, the invalid handover preparation and the X2 signaling overhead are increased. Therefore, how to determine the timing at which the source base station initiates handover preparation to the target base station and how to select a suitable target base station are problems to be solved.
  • the technical problem to be solved by the present disclosure is to provide a method for automatically switching a terminal, a base station, and a terminal.
  • the related technology solves the problem that the source base station initiates handover preparation to the target base station in the automatic handover of the terminal, resulting in invalid handover preparation.
  • the problem of large X2 signaling overhead is to provide a method for automatically switching a terminal, a base station, and a terminal.
  • an embodiment of the present disclosure provides a method for automatically switching a terminal, which is applied to a base station, and includes: when determining that the terminal supports an automatic handover function, to a target base station that needs to automatically prepare for the terminal to perform automatic handover. Sending an automatic handover request; receiving an automatic handover request response sent by the target base station; and activating an automatic handover function of the terminal, so that the terminal can initiate automatic handover.
  • the measurement configuration message prepared for automatic handover is sent to the terminal, where the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover; receiving and detecting the terminal according to the A measurement report for the automatic handover preparation that is prepared for the automatic handover preparation when the measurement configuration message prepared for the automatic handover preparation satisfies the measurement report condition for the automatic handover preparation.
  • the automatic handover request carries an automatic handover identifier.
  • the method before the sending the automatic handover request to the target base station that needs automatic handover preparation, the method further includes:
  • the base station supporting the automatic handover function is selected as the target base station that needs to be automatically switched.
  • the automatic switching request includes context information of the terminal.
  • the method before the sending the automatic handover request to the target base station that needs automatic handover preparation, the method further includes:
  • the target base station requiring automatic handover preparation is selected according to the cell that satisfies the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for the automatic handover.
  • the step of selecting the target base station that needs automatic handover preparation according to the cell that meets the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for the automatic handover includes:
  • the base station to which the neighboring cell of the cell that satisfies the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for the automatic handover is selected as the target base station that is ready for automatic handover.
  • the method further includes: sending, to the terminal, a target cell list with terminal context information.
  • the measurement report condition prepared for the automatic handover is loose or the same as the condition for triggering the automatic handover of the terminal.
  • the measurement event in the measurement report condition configuration for automatic handover preparation is one of A2-1, A3-1, A4, and A5 events.
  • the method further includes:
  • the automatic switching function of the terminal is activated.
  • the method before the activating the automatic switching function of the terminal, the method further includes: acquiring a channel occupancy rate, and determining to activate an automatic switching function of the terminal when the channel occupancy rate is greater than a first preset threshold; or
  • the method before the sending the measurement configuration message prepared for the automatic handover to the terminal, includes: when determining that the terminal supports the automatic handover function, sending a measurement configuration message for the automatic handover function to the terminal Receiving and detecting a measurement report for the activated automatic switching function sent by the terminal according to the measurement configuration message for activating the automatic switching function; wherein the measurement configuration message for activating the automatic switching function includes activating an automatic switching function Measurement object configuration and measurement report condition configuration;
  • the method Before the activating the automatic switching function of the terminal, the method includes:
  • the automatic switching function of activating the terminal is determined according to the measurement report for activating the automatic switching function. Further, the measurement report condition for activating the automatic switching function is loose or the same as the condition for triggering the automatic switching of the terminal; or
  • the measurement report condition prepared for automatic switching is stricter or the same as the measurement report condition for the active automatic switching function.
  • the measurement event in the measurement report condition configuration for activating the automatic switching function is one of A2-1, A3-1, A4, and A5 events.
  • the step of activating the automatic switching function of the terminal includes:
  • Instructing the terminal to activate an automatic handover function by transmitting a target cell list to the terminal, the target cell list including a target cell list supporting an automatic handover function and/or a target cell list having terminal context information; and/or
  • the automatic switching timer is configured to send the automatic switching timer to the terminal, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration, and in the Automatic switching starts after the automatic switching timer expires; and/or,
  • the terminal is configured to activate an automatic switching function by transmitting a measurement configuration for triggering automatic switching to the terminal, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration that triggers automatic switching and a measurement report condition configuration.
  • the method further includes:
  • the method further includes:
  • the measurement configuration message prepared by the automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for canceling the automatic handover; and according to the measurement report prepared for canceling the automatic handover, the cancel automatic handover request is sent to the target base station that cancels the automatic handover preparation.
  • the method before sending the cancel automatic handover request to the target base station that cancels the automatic handover preparation, the method further includes:
  • the target base station that cancels the automatic handover preparation is selected according to the cell that satisfies the measurement report condition for canceling the automatic handover preparation indicated in the measurement report prepared for canceling the automatic handover.
  • the step of selecting the target base station that cancels the automatic handover preparation according to the cell that meets the measurement report condition for canceling the automatic handover preparation indicated in the measurement report for canceling the automatic handover preparation includes:
  • the base station Determining, according to the cell indicating the measurement report condition that cancels the automatic handover preparation indicated in the measurement report for canceling the automatic handover preparation, the base station that includes the at least one cell that satisfies the measurement report condition for canceling the automatic handover preparation as the Determining the target base station for automatic handover preparation;
  • the base station Determining, according to the cell indicating the measurement report condition that cancels the automatic handover preparation indicated in the measurement report for canceling the automatic handover, the base station including all the cells that satisfy the measurement report condition of canceling the automatic handover preparation as the Cancel the target base station for automatic switching preparation.
  • the method further includes: sending, to the target base station that cancels the automatic handover preparation, a context information request for releasing the terminal.
  • the measurement report condition for canceling automatic handover preparation is strict or the same as the condition for not triggering automatic handover of the terminal.
  • the measurement event in the measurement report condition configuration for canceling automatic handover preparation is an A2-2 or A3-2 event.
  • the method further includes: deactivating an automatic switching function of the terminal.
  • the deactivating the automatic switching function of the terminal includes:
  • the channel occupancy rate is the detected number of other base station cells except the base station.
  • the channel occupancy ratio is a ratio of the number of times the channel is occupied and the total number of times the channel occupancy detection is detected before the data is transmitted in the first preset time;
  • the channel occupancy rate is a ratio of the number of times the channel is occupied to the total number of times the channel occupancy detection is detected when the channel occupancy detection is periodically performed within the second preset time; or
  • the channel occupancy rate is a ratio of a time when the average received signal strength detected in the third preset time exceeds a third preset threshold and the third preset time.
  • the method further includes:
  • the measurement configuration message for deactivating the automatic switching function includes a measurement object configuration and a measurement report condition configuration for deactivating the automatic switching function;
  • the automatic switching function of the terminal is deactivated according to the measurement report for deactivating the automatic switching function.
  • the measurement report condition for the deactivated automatic handover function is stricter or the same as the condition for not triggering the automatic handover of the terminal.
  • the measurement event in the measurement report condition configuration for deactivating the automatic switching function is an A2-2 or A3-2 event.
  • the deactivating the automatic switching function of the terminal includes:
  • Instructing the terminal to deactivate an automatic handover function by sending a configuration target cell list instruction to the terminal, where the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information; and/ or
  • an embodiment of the present disclosure further provides a base station, including: a first sending module, configured to: when determining that the terminal supports an automatic switching function, to a target base station that needs to prepare for automatic handover of the terminal Sending an automatic switching request; a first activation module, configured to activate an automatic switching function of the terminal, so that the terminal can initiate automatic switching.
  • a base station including: a first sending module, configured to: when determining that the terminal supports an automatic switching function, to a target base station that needs to prepare for automatic handover of the terminal Sending an automatic switching request; a first activation module, configured to activate an automatic switching function of the terminal, so that the terminal can initiate automatic switching.
  • the base station further includes: a first detecting module, configured to send, to the terminal, a measurement configuration message prepared for automatic handover, and receive and detect, by the terminal, that the measurement configuration message prepared according to the automatic handover meets the automatic A measurement report for automatic handover preparation sent when the prepared measurement report condition is switched, wherein the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover.
  • a first detecting module configured to send, to the terminal, a measurement configuration message prepared for automatic handover, and receive and detect, by the terminal, that the measurement configuration message prepared according to the automatic handover meets the automatic A measurement report for automatic handover preparation sent when the prepared measurement report condition is switched, wherein the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover.
  • the automatic handover request carries an automatic handover identifier.
  • the first sending module includes: a selecting submodule, configured to select, as the automatic needs, the base station supporting the automatic switching function before the second sending module sends an automatic switching request to the target base station that needs automatic switching preparation Switch the prepared target base station.
  • a selecting submodule configured to select, as the automatic needs, the base station supporting the automatic switching function before the second sending module sends an automatic switching request to the target base station that needs automatic switching preparation Switch the prepared target base station.
  • the first sending module includes: a first sending submodule, configured to send an automatic switching request to the target base station that needs automatic switching preparation; wherein the automatic switching request includes context information of the terminal .
  • the first sending module includes:
  • a second sending submodule configured to: according to the cell selection condition that meets the measurement report condition prepared for the automatic handover, which is indicated in the measurement report prepared for the automatic handover, before the automatic handover request is sent to the target base station that needs automatic handover preparation
  • the target base station that needs to automatically switch preparation is sent, and an automatic handover request is sent to the target base station that needs automatic handover preparation.
  • the second sending submodule includes:
  • a first selecting unit configured to select, according to the measurement report prepared for the automatic handover preparation, a base station of a cell that satisfies the measurement report condition for the automatic handover preparation as a target base station that needs to be automatically switched;
  • a second selecting unit configured to select, as the target base station that needs to be automatically switched, the base station of the neighboring cell of the cell that meets the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for automatic handover.
  • the base station further includes: a second sending module, configured to send, to the terminal, a target cell list that has terminal context information.
  • a second sending module configured to send, to the terminal, a target cell list that has terminal context information.
  • the second sending module is specifically configured to: before sending the automatic handover request to the target base station that needs automatic handover preparation, send the target cell list with the terminal context information to the terminal; or in the target base station that needs to be automatically switched. After transmitting the automatic handover request, the target cell list with terminal context information is transmitted to the terminal.
  • the measurement report condition prepared for the automatic handover is loose or the same as the condition for triggering the automatic handover of the terminal.
  • the measurement event in the measurement report condition configuration for automatic handover preparation is one of A2-1, A3-1, A4, and A5 events.
  • the base station further includes:
  • the first activation module is configured to activate an automatic switching function of the terminal when determining that the terminal supports the automatic switching function.
  • the first activation module is further configured to: obtain a channel occupancy rate, activate an automatic switching function of the terminal when the channel occupancy rate is greater than a first preset threshold; or receive an activation sent by the terminal When the function request is automatically switched, the automatic switching function of the terminal is activated.
  • the base station further includes:
  • a second detecting module configured to: when the terminal supports the automatic switching function, send a measurement configuration message for the automatic switching function to the terminal, and receive and detect the measurement configuration of the terminal according to the automatic switching function for activation a measurement report sent by the message for activating an automatic switching function; wherein the measurement configuration message for activating an automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function;
  • a second activation module configured to determine an automatic switching function for activating the terminal according to the measurement report for activating an automatic switching function.
  • the measurement report condition for activating the automatic handover function is loose or the same as the condition for triggering the automatic handover of the terminal;
  • the measurement report condition prepared for the automatic handover is stricter or the same as the measurement report condition for the activation automatic handover function.
  • the measurement event in the measurement report condition configuration for activating the automatic switching function is one of A2-1, A3-1, A4, and A5 events.
  • the second activation module is specifically configured to:
  • Instructing the terminal to activate an automatic handover function by transmitting a target cell list to the terminal, the target cell list including a target cell list supporting an automatic handover function and/or a target cell list having terminal context information; and/or
  • the automatic switching timer is configured to send the automatic switching timer to the terminal, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration, and in the Automatic switching starts after the automatic switching timer expires and/or
  • the terminal is configured to activate an automatic switching function by transmitting a measurement configuration for triggering automatic switching to the terminal, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration that triggers automatic switching and a measurement report condition configuration.
  • the base station further includes:
  • An acquiring module configured to acquire user equipment UE capability information of the terminal
  • a determining module configured to determine, according to the UE capability information of the terminal, whether the terminal supports an automatic switching function.
  • the base station further includes:
  • a third detection module configured to send, to the terminal, a measurement configuration message for canceling automatic handover preparation, and detecting the acquired measurement report sent by the terminal for canceling automatic handover preparation; wherein the preparation for canceling automatic handover is performed
  • the measurement configuration message includes a measurement object configuration and a measurement report condition configuration prepared for canceling the automatic handover;
  • a third sending module configured to send a cancel automatic switching request to the target base station that cancels the automatic switching preparation according to the measurement report prepared for canceling the automatic switching.
  • the third sending module includes:
  • a third sending submodule configured to select, according to the cell that meets the measurement report condition for canceling automatic handover, in the measurement report prepared for canceling automatic handover, cancel the target base station for canceling automatic handover preparation, and cancel the target base station
  • the target base station that automatically prepares for handover initiates a request to release the context information of the terminal.
  • the third sending submodule includes:
  • a third selecting unit configured to select, according to the cell that meets the measurement report condition that cancels automatic handover preparation indicated in the measurement report prepared for canceling automatic handover, that the included at least one cell satisfies the cancellation automatic handover preparation a base station that measures the reporting condition as the target base station for canceling the automatic handover preparation;
  • a fourth selecting unit configured to select, according to the cell that meets the measurement report condition that cancels automatic handover preparation indicated in the measurement report for canceling automatic handover, that all cells included include the measurement of canceling automatic handover preparation
  • the base station reporting the condition serves as the target base station for canceling the automatic handover preparation.
  • the third sending submodule is further configured to: send, to the target base station that cancels the automatic handover preparation, a context information request for releasing the terminal.
  • the measurement report condition for canceling automatic handover preparation is strict or the same as the condition for not triggering automatic handover of the terminal.
  • the measurement event in the measurement report condition configuration for canceling the automatic handover preparation is an A2-2 or A3-2 event.
  • the base station further includes: a first deactivation module, configured to deactivate the automatic switching function of the terminal.
  • the first deactivation module is configured to acquire a channel occupancy rate, and when the channel occupancy rate is less than a second preset threshold, deactivate the automatic switching function of the terminal; or receive the sent by the terminal.
  • the automatic switching function request is deactivated, the automatic switching function of the terminal is deactivated.
  • the channel occupancy rate is the number of detected other base station cells except the base station.
  • the channel occupancy ratio is a ratio of the number of times the channel is occupied and the total number of times the channel occupancy detection is detected before the data is transmitted in the first preset time;
  • the channel occupancy rate is a ratio of the number of times the channel is occupied to the total number of times the channel occupancy detection is detected when the channel occupancy detection is periodically performed within the second preset time; or
  • the channel occupancy rate is a ratio of a time when the average received signal strength detected in the third preset time exceeds a third preset threshold and the third preset time.
  • the base station further includes:
  • a fourth detecting module configured to send, to the terminal, a measurement configuration message for deactivating an automatic switching function, and receiving and detecting a measurement report sent by the terminal for a deactivated automatic switching function; wherein the automatic switching for deactivation is performed
  • the measurement configuration message of the function includes a measurement object configuration and a measurement report condition configuration for deactivating the automatic switching function;
  • a second deactivation module configured to deactivate the automatic switching function of the terminal according to the measurement report for deactivating the automatic switching function.
  • the measurement report condition for deactivating the automatic handover function is strict or the same as the condition for not triggering the automatic handover of the terminal.
  • the measurement event in the measurement report condition configuration for deactivating the automatic switching function is an A2-2 or A3-2 event.
  • the first deactivation module is specifically configured to:
  • Instructing the terminal to deactivate an automatic handover function by sending a configuration target cell list instruction to the terminal, where the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information; and/ or
  • an embodiment of the present disclosure further provides a method for automatically switching a terminal, which is applied to a terminal, including: receiving an indication sent by a base station, where the base station needs to The target base station that performs automatic handover preparation by the terminal sends an automatic handover request and receives an automatic handover request response sent by the target base station; and activates an automatic handover function according to an indication of the base station.
  • the method before the receiving the indication sent by the base station, the method further includes: receiving a measurement configuration message sent by the base station for automatic handover preparation;
  • the measurement configuration message prepared for automatic handover includes a measurement prepared for automatic handover Object configuration and measurement report condition configuration;
  • a measurement report for automatic handover preparation is sent to the base station, so that the base station determines that the terminal supports automatic
  • an automatic handover request is sent to the target base station that needs automatic handover preparation according to the received measurement report prepared for automatic handover.
  • the automatic handover request carries an automatic handover identifier.
  • the method before the receiving the indication sent by the base station, the method further includes:
  • the method before the receiving the indication sent by the base station, the method further includes:
  • the base station Receiving, by the base station, a measurement configuration message for activating an automatic switching function; wherein the measurement configuration for activating an automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function;
  • a measurement report for activating automatic handover is sent to the base station when the measurement report condition for activating the automatic handover function is satisfied.
  • the step of activating the automatic switching function according to the indication of the base station includes:
  • the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information;
  • the automatic switching function is activated when the automatic switching timer configuration sent by the base station is received, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration and the automatic switching. Automatic switching starts after the timer expires; and/or
  • the automatic switching function is activated when receiving the measurement configuration for triggering automatic switching sent by the base station, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration and a measurement report condition configuration that trigger automatic switching.
  • it also includes:
  • the base station Receiving, by the base station, a measurement configuration message for canceling automatic handover preparation; wherein the measurement configuration for canceling automatic handover preparation includes a measurement object configuration and a measurement report condition configuration for canceling automatic handover preparation;
  • a measurement report for canceling automatic handover is sent to the base station when the measurement report condition for canceling automatic handover preparation is satisfied.
  • it also includes:
  • the automatic switching function is activated according to the indication of the base station.
  • the method further includes:
  • the method further includes:
  • the base station Receiving, by the base station, a measurement configuration message for deactivating an automatic handover function; wherein the measurement configuration for deactivating an automatic handover function includes a measurement object configuration and a measurement report condition configuration for deactivating an automatic handover function;
  • a measurement report for the deactivation automatic handover function is sent to the base station when the measurement report condition for deactivating the automatic handover function is satisfied.
  • an embodiment of the present disclosure further provides a terminal, including:
  • a first receiving module configured to receive a measurement configuration message sent by the base station for automatic handover preparation;
  • the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover;
  • a fourth sending module configured to send, according to the measurement configuration message prepared for automatic handover, a measurement report prepared for automatic handover to the base station when the measurement report condition for automatic handover preparation is met, so that the base station
  • the automatic handover request is sent to the target base station that needs automatic handover preparation according to the received measurement report prepared for automatic handover.
  • the automatic handover request carries an automatic handover identifier.
  • it also includes:
  • a fifth sending module configured to acquire a channel occupancy rate, and send an activation automatic switching function request to the base station when the channel occupancy rate is greater than a first preset threshold
  • a third activation module configured to activate an automatic switching function according to the indication of the base station.
  • it also includes:
  • a second receiving module configured to receive a measurement configuration message sent by the base station for activating an automatic switching function, where the measurement configuration for activating an automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function ;
  • a sixth sending module configured to send, according to the measurement configuration message for activating an automatic handover, a measurement report for activating an automatic handover to the base station when the measurement report condition for activating an automatic handover function is met;
  • a fourth activation module configured to activate an automatic switching function according to the indication of the base station.
  • the third activation module is used to:
  • the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information;
  • the automatic switching function is activated when the automatic switching timer configuration sent by the base station is received, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration and the automatic switching. Automatic switching starts after the timer expires; and/or
  • the automatic switching function is activated when receiving the measurement configuration for triggering automatic switching sent by the base station, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration and a measurement report condition configuration that trigger automatic switching.
  • it also includes:
  • a third receiving module configured to receive a measurement configuration message sent by the base station for canceling automatic handover preparation, where the measurement configuration for canceling automatic handover preparation includes a measurement object configuration and a measurement report condition configuration for canceling automatic handover preparation ;
  • a seventh sending module configured to send, according to the measurement configuration message for canceling automatic handover, a measurement report for canceling automatic handover to the base station when the measurement report condition for canceling automatic handover preparation is satisfied.
  • it also includes:
  • a third deactivation module configured to deactivate the automatic switching function according to the indication of the base station.
  • it also includes:
  • an eighth sending module configured to acquire a channel occupancy rate, and send a deactivation automatic switching function request to the base station when the channel occupancy rate is less than a second preset threshold.
  • it also includes:
  • a fourth receiving module configured to receive a measurement configuration message sent by the base station for the deactivation automatic switching function, where the measurement configuration for the deactivation automatic switching function includes measurement object configuration and measurement for deactivating the automatic switching function Report condition configuration;
  • a ninth sending module configured to send, according to the measurement configuration message for deactivating the automatic switching function, a measurement report for the deactivation automatic switching function to the base station when the measurement report condition for deactivating the automatic switching function is met .
  • Embodiments of the present disclosure also provide a base station, including: a processor, a memory, and a transceiver; wherein:
  • the transceiver is configured to: when determining that the terminal supports the automatic handover function, send an automatic handover request to the target base station that needs to prepare for automatic handover of the terminal, and receive an automatic handover request response sent by the target base station; the processor passes Executing the memory stored instructions for activating an automatic switching function of the terminal to enable the terminal to initiate automatic switching.
  • Embodiments of the present disclosure also provide a terminal, including: a transceiver, a processor, and a memory; wherein:
  • the transceiver is configured to receive an indication sent by the base station, where the base station sends an automatic handover request to the target base station that needs to prepare for automatic handover of the terminal, and receives the target base station when determining that the terminal supports the automatic handover function.
  • Embodiments of the present disclosure also provide a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps of the above-described automatic switching method applied to a base station .
  • Embodiments of the present disclosure also provide a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps in the above-described automatic switching method applied to a terminal .
  • the base station sends a measurement configuration message prepared for automatic handover to the terminal, and detects a measurement report for the automatic handover preparation sent by the acquired terminal; and determines according to the measurement report prepared for the automatic handover.
  • the automatic handover request is sent to the target base station that needs automatic handover preparation; wherein the measurement configuration message prepared for the automatic handover includes the measurement object configuration and the measurement report condition configuration prepared for the automatic handover.
  • the source base station determines that the terminal supports the automatic handover function, and receives the measurement report for the automatic handover preparation sent by the terminal, and then initiates an automatic handover request to the target base station, thereby effectively determining the time at which the handover preparation is initiated, and avoiding the source base station.
  • FIG. 1 is a flowchart of a first embodiment of a base station applied to a method for automatically switching a terminal according to the present disclosure
  • FIG. 2 is a flowchart of a second embodiment of a method for automatically switching a terminal according to the present disclosure
  • FIG. 3 is a flow chart of a method for automatically switching a terminal according to the disclosure of the present invention.
  • FIG. 4 is a flow chart of applying another method of signaling to a base station according to a method for automatically switching a terminal of the present disclosure
  • FIG. 5 is a flowchart of applying another method of signaling to a base station according to a method for automatically switching a terminal according to the disclosure
  • FIG. 6 is a flowchart of another method for applying signaling to a base station according to a method for automatically switching a terminal according to the present disclosure
  • FIG. 7 is a flowchart of a third embodiment of a base station applied to a method for automatically switching a terminal according to the present disclosure
  • FIG. 8 is a flow chart of applying another method of signaling to a base station according to a method for automatically switching a terminal of the present disclosure
  • FIG. 9 is a flowchart of applying another method of signaling to a base station according to a method for automatically switching a terminal according to the disclosure.
  • FIG. 10 is a schematic structural diagram of a base station according to the present disclosure.
  • FIG. 11 is a flowchart of a method for automatically switching a terminal of the present disclosure applied to a terminal;
  • FIG. 12 is a schematic structural diagram of a terminal according to the present disclosure.
  • FIG. 13 is another schematic structural diagram of a base station according to the present disclosure.
  • Figure 14 is another schematic structural view of the terminal of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a base station according to some examples of the present disclosure.
  • FIG. 16 is a schematic structural diagram of a base station according to some examples of the present disclosure.
  • FIG. 17 is a schematic structural diagram of a terminal according to some examples of the present disclosure.
  • FIG. 18 is a schematic structural diagram of a terminal according to some examples of the present disclosure.
  • a method for automatically switching a terminal according to an embodiment of the present disclosure is applied to a base station, including:
  • Step 101 Send a measurement configuration message prepared for automatic handover to the terminal, and detect the obtained measurement report for automatic handover preparation sent by the terminal.
  • the source base station transmits a measurement configuration message prepared for automatic handover to the terminal, wherein the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover.
  • the terminal performs channel measurement according to a measurement configuration message prepared for automatic handover, and transmits a measurement report to the source base station when it is measured that the measurement report condition for automatic handover preparation is satisfied.
  • the base station may perform measurement configuration for the automatic handover preparation on the terminal under certain conditions, for example, when the terminal measures that the serving cell signal quality is lower than a certain threshold, or when the terminal automatically switches the function.
  • Step 102 Send an automatic handover request to the target base station that needs automatic handover preparation when determining that the terminal supports the automatic handover function according to the measurement report prepared for automatic handover.
  • the source base station when the source base station receives the measurement report prepared for the automatic handover and determines that the terminal supports the automatic handover function, the source base station transmits an automatic handover request to the target base station that needs automatic handover preparation.
  • the automatic switching request may carry an automatic switching identifier.
  • the source base station carries the automatic handover identifier in the automatic handover request.
  • the source base station initiates an automatic handover request to the target base station when determining that the terminal supports the automatic handover function, and receives the measurement report for the automatic handover preparation sent by the terminal, thereby effectively determining to initiate the handover.
  • the moment of preparation avoids the problem of increasing the X2 signaling overhead caused by the source base station performing invalid handover preparation.
  • the measurement event in the measurement report condition configuration prepared for the automatic handover may be one of the A2-1, A3-1, A4, and A5 events.
  • the measurement report condition prepared for the automatic handover should be looser or the same as the condition for triggering the automatic handover of the terminal, that is, the measurement report condition that the terminal sends the preparation for the automatic handover should be satisfied before the condition that the terminal is automatically switched.
  • the target base station can complete the handover preparation before the automatic handover is performed, so as to complete the handover smoothly, and avoid unnecessary handover delay introduced by the terminal base station when the terminal accesses the target base station (ie, the target base station is The source base station actively requests the delay of acquiring the terminal context information.
  • the measurement event in the measurement report condition configuration prepared for the automatic handover may be configured as A2-1, that is, before the A3-1 event that triggers the terminal automatic handover; or
  • the measurement event in the measurement report condition configuration for the automatic handover preparation may be configured as A3-1, but the measurement report condition for configuring the automatic handover preparation is more relaxed than the condition for triggering the automatic handover of the terminal, for example, configuring the neighboring cell signal strength to be higher than the service.
  • the relative threshold of the cell signal strength is lower (ie, a lower offset offset value) or a shorter hysteresis time value is configured.
  • the step of sending an automatic handover request to the target base station that needs automatic handover preparation includes:
  • Step 1021 Select a base station supporting the automatic handover function as the target base station that needs to be automatically switched.
  • the source base station may select a base station supporting the automatic handover function as the target base station that needs automatic handover preparation to ensure that the automatic handover is performed efficiently.
  • Step 1022 Send an automatic handover request to the target base station that needs to be automatically switched.
  • the automatic handover request includes context information of the terminal.
  • the source base station sends an automatic handover request to the target base station that needs automatic handover preparation.
  • the base station supporting the automatic handover function in the base station to which the neighboring cell belongs is selected as the target base station that needs to prepare for automatic handover of the terminal, and the automatic handover request includes the terminal. Contextual information.
  • the target base station may reserve dedicated resources for the terminal, or may not reserve any dedicated resources for the terminal, and then send an automatic handover request response to the source base station, which is different from the traditional handover in that the handover command is not carried.
  • the step of sending an automatic handover request to the target base station that needs automatic handover preparation includes:
  • Step 1023 Select, according to the cell that meets the measurement report condition for automatic handover preparation indicated in the measurement report prepared for automatic handover, the target base station that needs automatic handover preparation, and prepare the target that needs automatic handover preparation.
  • the base station sends an automatic handover request.
  • the target base station that sends the automatic handover preparation request is a preset one or more base stations, which are the same for each terminal.
  • the source base station may flexibly select different target base stations for different terminals according to the measurement report prepared for automatic handover.
  • steps of step 1023 above include:
  • the base station to which the neighboring cell of the cell that satisfies the measurement report condition for the automatic handover preparation indicated in the measurement report is used as the target base station that is ready for automatic handover.
  • the cell signal quality in the measurement report that satisfies the measurement report condition for the automatic handover preparation is high, the probability of the terminal automatically switching, and the source base station can select the satisfaction indicated in the measurement report prepared for the automatic handover to be prepared for the automatic handover.
  • the base station to which the cell reporting the reporting condition belongs is the target base station that needs automatic handover preparation.
  • the terminal since the measurement report condition of the automatic handover preparation is satisfied before the trigger terminal performs the automatic handover, the terminal does not necessarily switch to the cell indicated in the measurement report, and the base station may select more target base stations for automatic handover preparation, for example, selecting for automatic handover preparation.
  • the base station of the neighboring cell of the cell that satisfies the measurement report condition for automatic handover preparation indicated in the measurement report serves as the target base station that needs automatic handover preparation, so as to avoid the target base station not having the additional delay introduced by the terminal context information.
  • the method before sending the automatic handover request to the target base station that needs automatic handover preparation, the method further includes:
  • a target cell list with terminal context information is transmitted to the terminal.
  • the source base station may use the cell under the target base station for the selected automatic handover preparation as the target cell having the terminal context information, for example, selecting the cell that satisfies the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for the automatic handover.
  • Target cell with terminal context information for example, selecting the cell that satisfies the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for the automatic handover.
  • the method further includes:
  • a target cell list with terminal context information is transmitted to the terminal.
  • the source base station may use the cell that accepts the handover request as the target cell with the terminal context information after receiving the automatic handover request response sent by the target base station.
  • the terminal can preferentially select these cells as the target cell for handover when the automatic handover is performed, thereby avoiding the lack of terminal context due to the target base station of the handover.
  • the unnecessary handover delay introduced that is, the delay that the target base station actively requests the source base station to acquire the terminal context information).
  • the source base station should also determine whether to send an automatic handover request to the target base station that needs automatic handover preparation according to whether the terminal activates the automatic handover function, and initiate an automatic handover request for the terminal source base station that has activated the automatic handover function.
  • the method for automatically switching the terminal in the embodiment of the present disclosure can effectively determine the timing of initiating the handover preparation, and avoid the problem of increasing the X2 signaling overhead caused by the source base station performing the invalid handover preparation.
  • the related art does not specify conditions for activating and deactivating automatic switching, which may cause the terminal to perform unnecessary switching.
  • the method for automatically switching a terminal in the embodiment of the present disclosure further specifies a condition for the source base station to activate and deactivate the terminal to automatically switch, thereby preventing the terminal from performing unnecessary automatic switching.
  • a method for automatic handover of a terminal is further provided, where the method is applied to a base station, including: when determining that the terminal supports an automatic handover function, sending an automatic handover request to a target base station that needs to prepare for automatic handover of the terminal. Receiving an automatic handover request response sent by the target base station; activating an automatic handover function of the terminal, so that the terminal can initiate automatic handover.
  • the method for automatically switching the terminal in the embodiment of the present disclosure further includes:
  • Step 103 Acquire user equipment UE capability information of the terminal.
  • the source base station may receive UE capability information sent by the terminal or receive capability information of the UE of the terminal sent by other base stations.
  • Step 104 Determine, according to the UE capability information of the terminal, whether the terminal supports an automatic handover function.
  • the terminal that supports the automatic handover function includes an automatic handover function indication in the UE capability information sent to the network, and the source base station may determine, according to the UE capability information, whether the terminal supports the automatic handover function.
  • the method for automatically switching the terminal in the embodiment of the present disclosure further includes:
  • Step 105 Activate the automatic switching function of the terminal when determining that the terminal supports the automatic switching function.
  • the source base station may instruct the terminal to activate the automatic handover capability.
  • step 106 when it is determined that the terminal supports the automatic switching function, the channel occupancy rate is acquired, and when the channel occupancy rate is greater than the first preset threshold, the automatic switching function of the terminal is activated.
  • the source base station determines that the terminal supports the automatic handover function, it further determines whether to activate the automatic handover function of the terminal according to the channel occupancy rate. If the currently detected channel occupancy rate or the average channel occupancy rate detected within the preset time exceeds a specified threshold (the first preset threshold), the terminal is instructed to activate the automatic handover function, because the higher the channel occupancy rate is detected, the source base station is indicated. The fewer idle subframes that can be utilized, the greater the delay in sending a handover command.
  • step 107 when it is determined that the terminal supports the automatic switching function, and receives the activation automatic switching function request sent by the terminal, the automatic switching function of the terminal is activated.
  • the terminal when the source base station receives the activation automatic handover function request sent by the terminal, the terminal is instructed to activate the automatic handover function, wherein the terminal can also determine whether to send the activation automatic handover function request according to the channel occupancy rate detected by the terminal, if the currently detected channel If the occupancy rate or the average channel occupancy rate detected within the preset time exceeds the specified threshold, the automatic handover function request is sent, because the higher the channel occupancy rate is, the less idle subframes the terminal can use, and the time when the measurement report is sent. The extension is greater.
  • the channel occupancy rate may be defined as the number of detected other base station cells except the base station.
  • the channel occupancy rate may be considered to exceed a specified threshold (the first preset threshold), and the terminal is instructed to activate the automatic switching function.
  • the channel occupancy rate may be defined as a ratio of the number of times the channel is occupied and the total number of channel occupancy detections are detected before the data is transmitted in the first preset time.
  • the channel occupancy rate may be defined as a ratio of the number of times the channel is occupied and the total number of times of channel occupancy detection when the channel occupancy detection is periodically performed in the second preset time.
  • the channel occupancy rate reflects the probability that the LBT is successful when transmitting downlink data.
  • the channel occupancy detection may be CCA (Clear Channel Assessment), or other channel detection, such as initial CSF evaluation initial CCA or extended net channel evaluation extended CCA. If the channel occupancy detection is successful, it can refer to the success of CCA once, or the continuous detection of multiple CCAs.
  • the channel occupancy rate may be defined as a time when the value of the received signal strength indicator (RSSI) detected in the third preset time exceeds a third preset threshold and the third preset time ratio.
  • RSSI received signal strength indicator
  • the channel occupancy rate is N/T.
  • the method for automatically switching the terminal in the embodiment of the present disclosure further includes:
  • Step 108 When it is determined that the terminal supports the automatic switching function, send a measurement configuration message for the activated automatic switching function to the terminal, and detect the obtained measurement report for the activated automatic switching function sent by the terminal;
  • the measurement configuration message for activating the automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function.
  • the source base station transmits a measurement configuration message for activating an automatic handover function to the terminal, including a measurement object configuration and a measurement report condition configuration.
  • the base station may send a measurement configuration message for the active automatic handover function to the terminal based on a certain condition, for example, when it is determined that the automatic handover preparation is initiated to the target base station (ie, in the embodiment of the present disclosure, when the terminal sends the received configuration For the measurement report prepared for automatic switching).
  • the terminal performs channel measurement according to the measurement configuration message for activating the automatic handover function, and transmits a measurement report to the source base station when it is measured that the measurement report condition for activating the automatic handover function is satisfied.
  • Step 109 Activate the automatic switching function of the terminal according to the measurement report for activating the automatic switching function.
  • the source base station receives a measurement report for activating the automatic handover function, instructing the terminal to activate the automatic handover function.
  • the measurement event in the measurement report condition configuration for activating the automatic switching function is one of A2-1, A3-1, A4, and A5 events.
  • the measurement report condition for activating the automatic handover function is looser or the same as the condition for triggering the automatic handover of the terminal, that is, the measurement report condition for the terminal to send the activation automatic handover function should be at the same time or at the same time as the condition for triggering the terminal to automatically switch. It is satisfied before, so that the terminal can activate the automatic switching function at the same time as or before the automatic switching, so as to smoothly switch and avoid unnecessary switching delay.
  • the measurement event in the measurement report condition configuration for the active automatic switching function may be configured as A2-1, that is, before the A3-1 event that triggers the terminal automatic switching; or
  • the measurement event in the measurement report condition configuration for activating the automatic switching function can be configured as A3-1, but the measurement report condition for configuring the automatic switching function is more relaxed than the condition for triggering the terminal automatic switching, for example, configuring the neighbor cell signal strength.
  • a relative threshold higher than the signal strength of the serving cell is lower (ie, a lower offset value) or a shorter hysteresis time value is configured.
  • the measurement report condition prepared for the automatic handover is stricter or the same as the measurement report condition for the automatic handover function, that is, the condition that the terminal transmits the measurement report prepared for the automatic handover should be simultaneously or compared with the condition of activating the automatic handover function of the terminal. It is then satisfied, so that the terminal can ensure that the target base station completes the handover preparation while or after the automatic handover function is activated, thereby avoiding unnecessary handover preparation.
  • the measurement event in the measurement report condition configuration for the active automatic switching function is configured as A3-1
  • the measurement event in the measurement report condition configuration for automatic switching preparation may be configured as A5; or, if automatic switching is activated for activation
  • the measurement event in the function measurement report condition configuration is configured as A2-1
  • the measurement event in the measurement report condition configuration prepared for automatic handover should be a stricter A2-1 event, that is, a lower serving cell signal strength threshold.
  • the measurement report condition for activating the automatic switching function may also be stricter than the measurement report condition prepared for the automatic handover, that is, the measurement report condition for the automatic handover preparation is sent by the terminal after the measurement report condition for the activation automatic handover function is Satisfy.
  • the target cell list supporting the automatic handover function may also be sent.
  • the role of the target cell list supporting the automatic handover function is to enable the terminal to select a target cell according to the base station in the list to avoid handover failure.
  • the automatic switching function of the source base station activating terminal may be an explicit indication or an implicit activation.
  • the step of activating the automatic switching function of the terminal is as follows:
  • Target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information;
  • the automatic switching timer is configured to send the automatic switching timer to the terminal, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration, and in the Automatic switching starts after the automatic switching timer expires; and/or,
  • the terminal is configured to activate an automatic switching function by transmitting a measurement configuration for triggering automatic switching to the terminal, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration that triggers automatic switching and a measurement report condition configuration.
  • the base station transmits a target cell list for automatic handover to the terminal, and/or transmits an automatic handover timer configuration to instruct the terminal to activate the automatic handover function.
  • the terminal can start the automatic switching function when the target cell with automatic switching and/or the automatic switching timer configuration are saved.
  • the automatic switching timer is used for hybrid automatic switching.
  • the hybrid automatic switching is a special case of the combination of the traditional switching controlled by the base station and the automatic switching of the terminal.
  • the hybrid automatic switching when the source base station receives the trigger terminal, the hybrid automatic switching (ie, starting automatic) After the measurement report of the automatic handover sent when the timer is switched, a traditional handover preparation request is initiated to the selected traditional handover target cell, and then a handover command is sent to the terminal, and the terminal receives the handover command before the automatic handover timer expires.
  • the timer is stopped and switched to the target cell indicated by the handover command.
  • the base station may also send a traditional handover target cell list to the terminal, where the target cell that is ready for traditional handover is included. If the terminal receives the list before the automatic switchover timer expires, the terminal will first consider selecting the target cell that is ready for traditional handover when the terminal performs automatic handover after the timer expires, because this will further reduce the handover delay.
  • the method for automatically switching a terminal in the embodiment of the present disclosure specifies a condition that the source base station activates the automatic handover of the terminal, thereby avoiding unnecessary automatic switching of the terminal.
  • the method for automatically switching the terminal in the embodiment of the disclosure further includes:
  • step 110 the automatic switching function of the terminal is deactivated.
  • step 110 includes:
  • Step 1101 Obtain a channel occupancy rate, and when the channel occupancy rate is less than a second preset threshold, deactivate the automatic switching function of the terminal.
  • the source base station determines whether to deactivate the automatic switching function of the terminal according to the channel occupancy rate. If the currently detected channel occupancy rate or the average channel occupancy rate detected within the preset time is less than a specified threshold (second preset threshold), the terminal is instructed to deactivate the automatic switching function.
  • a specified threshold second preset threshold
  • step 1102 when receiving the request for deactivating the automatic switching function sent by the terminal, deactivating the automatic switching function of the terminal.
  • the terminal instructs the terminal to deactivate the automatic switching function, wherein the terminal can also determine whether to send the deactivated automatic switching function request according to the channel occupancy rate detected by the terminal, if the current detection If the obtained channel occupancy rate or the average channel occupancy rate detected within the preset time is less than the specified threshold, the deactivation automatic switching function request is sent.
  • the channel occupancy rate may be defined as the number of detected other base station cells except the base station.
  • the channel occupancy rate may be considered to be less than a specified threshold (second preset threshold), and the terminal is instructed to deactivate the automatic switching function.
  • the channel occupancy rate may be defined as a ratio of the number of times the channel is occupied and the total number of channel occupancy detections are detected before the data is transmitted in the first preset time.
  • the channel occupancy rate may be defined as a ratio of the number of times the channel is occupied and the total number of times of channel occupancy detection when the channel occupancy detection is periodically performed in the second preset time.
  • the channel occupancy rate reflects the probability that the LBT is successful when transmitting downlink data.
  • the channel occupancy detection can be CCA or other channel detection, such as initial CCA or extended CCA. If the channel occupancy detection is successful, it can refer to the success of CCA once, or the continuous detection of multiple CCAs.
  • the channel occupancy rate may be defined as a ratio of a time when the RSSI detected in the third preset time exceeds a third preset threshold and the third preset time.
  • the channel occupancy rate is N/T.
  • step 110 further includes:
  • Step 1103 Send a measurement configuration message for deactivating the automatic switching function to the terminal, and detect the obtained measurement report sent by the terminal for the deactivation automatic switching function; wherein the de-activated automatic switching function is used.
  • the measurement configuration message includes a measurement object configuration and a measurement report condition configuration for deactivating the automatic switching function.
  • the source base station transmits a measurement configuration message for the deactivation automatic handover function to the terminal, including the measurement object configuration and the measurement report condition configuration.
  • the base station may send a measurement configuration message for deactivating the automatic handover function to the terminal when determining to cancel the automatic handover preparation.
  • the terminal performs channel measurement according to the measurement configuration message for deactivating the automatic switching function, and sends a measurement report to the source base station when it is measured that the measurement report condition for deactivating the automatic switching function is satisfied.
  • Step 1104 Deactivate the automatic switching function of the terminal according to the measurement report for deactivating the automatic switching function.
  • the source base station receives a measurement report for the deactivated automatic handover function, instructing the terminal to deactivate the automatic handover function.
  • the measurement event in the measurement report condition configuration for deactivating the automatic handover function is an A2-2 or an A3-2 event.
  • the measurement report condition for deactivating the automatic handover function is stricter or the same as the condition for not automatically triggering the terminal automatic handover, that is, the measurement report condition for the terminal to send the deactivated automatic handover should be compared with the condition that the automatic handover of the terminal is not triggered. At the same time or after being satisfied, this ensures that the terminal activates the automatic switching function when the automatic switching is not performed.
  • the measurement event in the measurement report condition configuration for the deactivation automatic switching function can be configured as A2-2, that is, after the A3-2 event that does not trigger the terminal automatic switching, When the A2-2 event is satisfied, the terminal does not perform automatic switching; or, the measurement event A3-2 in the condition configuration configuration may be reported for the measurement of the deactivation automatic switching function, but the measurement report condition ratio for the deactivation automatic switching function is configured.
  • the conditions for not triggering the automatic handover of the terminal are more strict, for example, the condition that the signal strength difference between the serving cell and the neighboring cell is configured is more severe (ie, a larger offset offset value) or a larger hysteresis time value.
  • the foregoing step 110 includes:
  • Instructing the terminal to deactivate an automatic handover function by sending a configuration target cell list instruction to the terminal, where the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information; and/ or
  • the base station sends a target cell list instruction for configuring automatic handover to the terminal, and/or sends an automatic handover timer instruction to instruct the terminal to deactivate the automatic handover function.
  • the terminal configures the target cell for automatic handover or the automatic switch timer configuration, that is, when the target cell with automatic handover or the automatic switch timer is not saved, the automatic switchover function cannot be started.
  • the method for automatically switching the terminal in the embodiment of the present disclosure specifies that the source base station deactivates the condition that the terminal automatically switches, thereby avoiding unnecessary automatic switching of the terminal.
  • the target base station cancels the handover preparation, or when the terminal receives the release terminal context request sent by the source base station after the other target cell successfully switches, cancels the handover preparation, that is, deletes the terminal.
  • Contextual information when the terminal does not access when the handover timer expires, the target base station cancels the handover preparation, or when the terminal receives the release terminal context request sent by the source base station after the other target cell successfully switches, cancels the handover preparation, that is, deletes the terminal. Contextual information.
  • the condition for automatic handover preparation is looser than the condition for triggering the automatic handover of the terminal, and the network side does not know whether the terminal performs handover and when to perform handover. If the ping-pong handover preparation is easily performed according to the related art.
  • the method for automatically switching the terminal according to the embodiment of the present disclosure can cancel the automatic handover preparation according to the measurement report prepared for canceling the automatic handover, thereby avoiding the problem of ping-pong handover preparation.
  • the method for automatically switching the terminal in the embodiment of the disclosure further includes:
  • Step 114 Send a measurement configuration message for canceling automatic handover preparation to the terminal, and detect the acquired measurement report sent by the terminal for canceling automatic handover preparation; wherein the measurement configuration message prepared for canceling automatic handover preparation Includes measurement object configuration and measurement report condition configuration for canceling automatic switching preparation.
  • the source base station transmits a measurement configuration message for canceling the automatic handover preparation to the terminal, wherein the measurement configuration message prepared for canceling the automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for canceling the automatic handover preparation.
  • the base station may send a measurement configuration message for canceling the automatic handover preparation to the terminal after deactivating the automatic handover function of the terminal.
  • the terminal performs channel measurement according to a measurement configuration message prepared for canceling automatic handover, and transmits a measurement report to the source base station when it is measured that the measurement report condition for canceling the automatic handover preparation is satisfied.
  • Step 115 Send a cancel automatic handover request to the target base station that cancels the automatic handover preparation according to the measurement report prepared for canceling the automatic handover.
  • the source base station when the source base station receives the measurement report prepared for canceling the automatic handover, the source base station sends a cancel automatic handover request to the target base station that cancels the automatic handover preparation, where the identifier information of the terminal may be included.
  • the measurement event in the measurement report condition configuration for canceling the automatic handover preparation may be an A2-2 or an A3-2 event.
  • the measurement report condition for canceling the automatic handover preparation is stricter than the condition for not automatically triggering the terminal automatic handover, that is, the measurement report condition for the terminal to send the cancellation for the automatic handover preparation should be later after the condition that the terminal automatic handover is not triggered. Satisfied, this can ensure that the target base station cancels the automatic handover preparation when the terminal does not perform automatic handover.
  • the measurement report condition for canceling the automatic handover preparation is looser or the same as the measurement report condition for the deactivation automatic handover function, that is, the condition for transmitting the measurement report for canceling the automatic handover preparation is compared with the condition for deactivating the automatic handover of the terminal. It should be satisfied at the same time or before, so that the terminal can ensure that the target base station completes the cancel handover preparation while deactivating the automatic handover function. If the automatic handover preparation is not canceled when the terminal automatic handover function is deactivated, the base station may cancel the automatic handover preparation when the measurement report for canceling the automatic handover preparation is not received.
  • the step of sending the cancel automatic handover request to the target base station that cancels the automatic handover preparation includes:
  • Step 1151 Select a target base station that cancels automatic handover preparation according to the cell that meets the measurement report condition for canceling automatic handover preparation indicated in the measurement report for canceling automatic handover preparation, and prepares a target for canceling automatic handover preparation.
  • the base station sends a request for releasing the context information of the terminal.
  • the source base station can flexibly select the target base station that cancels the automatic handover preparation according to the measurement report prepared for canceling the automatic handover, and requests to release the terminal context information.
  • step 1151 includes:
  • the base station Determining, according to the cell indicating the measurement report condition that cancels the automatic handover preparation indicated in the measurement report for canceling the automatic handover preparation, the base station that includes the at least one cell that satisfies the measurement report condition for canceling the automatic handover preparation as the Determining the target base station for automatic handover preparation;
  • the base station Determining, according to the cell indicating the measurement report condition that cancels the automatic handover preparation indicated in the measurement report for canceling the automatic handover, the base station including all the cells that satisfy the measurement report condition of canceling the automatic handover preparation as the Cancel the target base station for automatic switching preparation.
  • the source base station may select, as the target base station that cancels the automatic handover preparation, the base station that the at least one cell included satisfies the measurement report condition for canceling the automatic handover preparation. It is also possible to select a base station in which all of the included cells satisfy the measurement report condition for canceling the automatic handover preparation as the target base station for canceling the automatic handover preparation.
  • the method for automatically switching the terminal according to the embodiment of the present disclosure can cancel the automatic handover preparation according to the measurement report prepared for canceling the automatic handover, thereby avoiding the problem of ping-pong handover preparation.
  • the method for automatically switching a terminal in the embodiment of the present disclosure can effectively determine the time at which the handover preparation is initiated and select a suitable target base station, thereby avoiding the problem of increasing the X2 signaling overhead caused by the source base station performing invalid handover preparation.
  • the condition that the source base station activates and deactivates the terminal to automatically switch is specified, thereby avoiding unnecessary automatic switching of the terminal.
  • the automatic switching preparation can be canceled according to the measurement report prepared for canceling the automatic switching, thereby avoiding the problem of ping-pong switching preparation.
  • the embodiment of the present disclosure is a specific application embodiment of the foregoing first embodiment.
  • the embodiment of the present disclosure specifically describes a process in which a source base station activates an automatic handover function of a terminal and a source base station initiates automatic handover preparation.
  • the source base station separately configures a trigger condition (ie, configures a measurement report condition) for activating the automatic handover function of the terminal and initiating the automatic handover, wherein the automatic handover of the activation terminal and the initiation of the automatic handover preparation are not strictly sequential, that is,
  • the measurement configuration that the base station transmits to the terminal for the active terminal automatic handover function may be performed before or after transmitting the measurement configuration prepared for automatic handover.
  • a method for automatically switching a terminal according to an embodiment of the present disclosure is applied to a base station, including:
  • Step 201 Acquire UE capability information of the terminal.
  • the source base station may receive UE capability information sent by the terminal or receive capability information of the UE of the terminal sent by other base stations.
  • Step 202 Determine, according to the UE capability information of the terminal, whether the terminal supports an automatic handover function.
  • the terminal that supports the automatic handover function includes an automatic handover function indication in the UE capability information sent to the network, and the source base station may determine, according to the UE capability information, whether the terminal supports the automatic handover function.
  • Step 203 When it is determined that the terminal supports the automatic switching function, send a measurement configuration message for the active automatic switching function to the terminal, and detect the obtained measurement report for the activated automatic switching function sent by the terminal;
  • the measurement configuration message for activating the automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function.
  • the source base station transmits a measurement configuration message for activating an automatic handover function to the terminal, including a measurement object configuration and a measurement report condition configuration.
  • the base station may send a measurement configuration message for the activation automatic handover function to the terminal after determining to initiate automatic handover preparation to the target base station.
  • the terminal performs channel measurement according to the measurement configuration message for activating the automatic handover function, and transmits a measurement report to the source base station when it is measured that the measurement report condition for activating the automatic handover function is satisfied.
  • Step 204 Activate an automatic switching function of the terminal according to the measurement report for activating an automatic switching function.
  • the source base station receives a measurement report for activating the automatic handover function, instructing the terminal to activate the automatic handover function.
  • Step 205 Send a measurement configuration message prepared for automatic handover to the terminal, and detect the obtained measurement report for automatic handover preparation sent by the terminal.
  • the source base station transmits a measurement configuration message prepared for automatic handover to the terminal, wherein the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover.
  • the terminal performs channel measurement according to a measurement configuration message prepared for automatic handover, and transmits a measurement report to the source base station when it is measured that the measurement report condition for automatic handover preparation is satisfied.
  • Step 206 Send an automatic handover request to the target base station that needs automatic handover preparation when determining that the terminal supports the automatic handover function according to the measurement report prepared for automatic handover.
  • the source base station when the source base station receives the measurement report prepared for automatic handover and determines that the terminal supports the automatic handover function, the source base station sends an automatic handover request to the target base station that needs automatic handover preparation, for example, selecting an automatic handover function supported by the base station to which the neighboring cell belongs.
  • the base station serves as a target base station that needs to prepare for automatic handover of the terminal.
  • the step of sending an automatic handover request to the target base station that needs automatic handover preparation includes:
  • Step 2061 Select, according to the cell that meets the measurement report condition for automatic handover preparation indicated in the measurement report prepared for automatic handover, the target base station that needs automatic handover preparation, and prepare the target that needs automatic handover preparation.
  • the base station sends an automatic handover request.
  • the target base station that sends the automatic handover preparation request is a preset one or more base stations, which are the same for each terminal.
  • the source base station may flexibly select different target base stations for different terminals according to the measurement report prepared for automatic handover.
  • steps of the above step 2061 include:
  • the base station to which the neighboring cell of the cell that satisfies the measurement report condition for the automatic handover preparation indicated in the measurement report is used as the target base station that is ready for automatic handover.
  • the cell signal quality in the measurement report that satisfies the measurement report condition for the automatic handover preparation is high, the probability of the terminal automatically switching, and the source base station can select the satisfaction indicated in the measurement report prepared for the automatic handover to be prepared for the automatic handover.
  • the base station to which the cell reporting the reporting condition belongs is the target base station that needs automatic handover preparation.
  • the terminal since the measurement report condition of the automatic handover preparation is satisfied before the trigger terminal performs the automatic handover, the terminal does not necessarily switch to the cell indicated in the measurement report, and the base station may select more target base stations for automatic handover preparation, for example, selecting for automatic handover preparation.
  • the base station of the neighboring cell of the cell that satisfies the measurement report condition for automatic handover preparation indicated in the measurement report serves as the target base station that needs automatic handover preparation, so as to avoid the target base station not having the additional delay introduced by the terminal context information.
  • the method before sending the automatic handover request to the target base station that needs automatic handover preparation, the method further includes:
  • a target cell list with terminal context information is transmitted to the terminal.
  • the source base station may use the cell under the target base station for the selected automatic handover preparation as the target cell having the terminal context information, for example, selecting the cell that satisfies the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for the automatic handover.
  • Target cell with terminal context information for example, selecting the cell that satisfies the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for the automatic handover.
  • the method further includes:
  • a target cell list with terminal context information is transmitted to the terminal.
  • the source base station may use the cell that accepts the handover request as the target cell with the terminal context information after receiving the automatic handover request response sent by the target base station.
  • the terminal can preferentially select the cells as the target cell of the handover when the terminal automatically switches, and avoids the lack of the terminal context due to the target base station of the handover.
  • the unnecessary handover delay introduced that is, the delay that the target base station actively requests the source base station to acquire the terminal context information).
  • the terminal completely switches automatically, and the signaling process is as shown in FIG. 3:
  • the base station sends a measurement configuration message for the automatic switching function to the terminal. After receiving the measurement report message (Measurement Report) sent by the terminal for the automatic switching function, the base station sends an activation automatic switching function indication message (AUM active) to the terminal, indicating the terminal. Activate the automatic switching function. Then, the base station sends a measurement configuration message prepared for the automatic handover to the terminal, and after receiving the measurement report (Measurement Report) for the automatic handover preparation sent by the terminal, determines to initiate the automatic handover preparation and selects the target base station that needs automatic handover preparation; the base station targets the target The base station sends an Autonomous HO Request message, and the target base station sends an Autonomous HO Request ACK to the base station.
  • AUM active activation automatic switching function indication message
  • the base station sends a target cell list with terminal context information to the terminal according to the received automatic handover request response message, so that the terminal selects the cell in the target cell list when selecting the target cell to be handed over.
  • the terminal sends a handover request message to the target cell to the target cell.
  • the measurement configuration message sent by the base station to the terminal for automatic handover preparation may be performed before the measurement configuration message for the automatic handover function is activated to the terminal, that is, the following signaling may be performed before the terminal makes an automatic handover decision.
  • the base station sends a measurement configuration message prepared for the automatic handover to the terminal, and after receiving the measurement report for the automatic handover preparation, the terminal determines to initiate the automatic handover preparation and selects the target base station that needs automatic handover preparation; the base station sends the automatic to the target base station.
  • Autonomous HO Request the target base station sends an Autonomous HO Request ACK to the base station.
  • the base station sends a measurement configuration message for the automatic switching function to the terminal. After receiving the measurement report message (Measurement Report) for the automatic switching function, the base station sends an activation automatic switching function indication message (AUM active) to the terminal, indicating that the UE is activated. Automatic switching function.
  • the base station sends a target cell list with terminal context information to the terminal according to the received automatic handover request response message, so that the terminal selects the cell in the target cell list when selecting the target cell to be switched.
  • the base station may implicitly activate the automatic switching function of the terminal by sending a target cell list with terminal context information to the terminal instead of issuing the automatic switching function indication message.
  • the application scenario 2 of the embodiment of the present disclosure is a hybrid handover between a traditional handover and a terminal automatic handover control under the control of a base station, and the signaling process is as shown in FIG. 4:
  • the base station sends a measurement configuration message for the active automatic switching function to the terminal, and after receiving the measurement report (Measurement Report) for the automatic switching function, the terminal sends an activation automatic switching function indication (AUM active) message to the terminal, indicating that the terminal activates automatically. Switching function; then, the base station sends a measurement configuration message prepared for the automatic handover preparation to the terminal, and after receiving the measurement report (Measurement Report) for the automatic handover preparation sent by the terminal, the base station determines to initiate the automatic handover preparation and selects the target base station that needs automatic handover preparation.
  • the base station sends an Autonomous HO Request to the target base station, and the target base station sends an Autonomous HO Request ACK to the base station.
  • the base station sends a target cell list (terminal cell list) with terminal context information to the terminal according to the received automatic handover request response message, so that the terminal selects the target cell list when the automatic handover timer expires automatically.
  • the cell serves as a target cell.
  • the base station sends a traditional handover preparation request message (HO Request) to the selected traditional handover target base station, and the target base station sends a handover request response message (HO Request ACK) to the base station, and then the base station sends a handover command (HO Command) to the terminal;
  • HO Request traditional handover preparation request message
  • HO Request ACK handover request response message
  • HO Command handover command
  • the measurement configuration message that the base station sends the terminal to the terminal for the automatic handover preparation may be performed before the measurement configuration message for the automatic handover function is sent to the terminal, that is, the following signaling procedure may be performed before the terminal hybrid handover is triggered.
  • Figure 5 shows that
  • the base station sends a measurement configuration message prepared for the automatic handover preparation to the terminal, and after receiving the measurement report (Measurement Report) for the automatic handover preparation sent by the terminal, the base station determines to initiate the automatic handover preparation and selects the target base station that needs automatic handover preparation; the base station to the target base station The Autonomous HO Request is sent, and the target base station sends an Autonomous HO Request ACK to the base station.
  • the base station sends a target cell list (terminal cell list) with terminal context information to the terminal according to the received automatic handover request response message, so that the terminal selects the target cell list when the automatic handover timer expires automatically.
  • the cell serves as a target cell.
  • the base station sends a measurement configuration message for the active automatic switching function to the terminal, and after receiving the measurement report (Measurement Report) for the automatic switching function, the terminal sends an activation automatic switching function indication (AUM active) message to the terminal, indicating the terminal.
  • AUM active activation automatic switching function indication
  • the base station can send the Target Cell list and the measurement configuration for the active automatic switching function to the terminal through the same signaling.
  • the base station may also implicitly activate the automatic switching function of the terminal by transmitting a measurement configuration message for the hybrid handover.
  • the base station prepares the same measurement report condition for the hybrid handover and the automatic handover of the terminal.
  • the terminal triggers the hybrid handover (starts the automatic handover timer) and sends a measurement report, when the base station receives the measurement report.
  • the base station uses the traditional handover preparation process to implement automatic handover preparation. The specific process is shown in Figure 6:
  • the base station sends a measurement configuration message for the active automatic switching function to the terminal, and after receiving the measurement report (Measurement Report) for the automatic switching function, the terminal sends an activation automatic switching function indication (AUM active) message to the terminal, indicating that the terminal activates automatically. Switch function. Then, the base station sends a measurement configuration message for the terminal hybrid handover to the terminal. After receiving the measurement report sent by the terminal, the base station selects the target base station and sends a handover request message (HO Request) to the target base station, and the target base station sends a handover to the base station. Request response message (HO Request ACK).
  • HO Request handover request message
  • the base station may not explicitly issue the automatic handover function indication message but implicitly activate the automatic handover function of the terminal by transmitting a measurement configuration message for the hybrid handover to the terminal.
  • the source base station may send an automatic switch timer configuration to the terminal to instruct the terminal to activate the automatic switch function, where the automatic switch timer is configured to determine, according to the automatic switch timer configuration, the automatic switch timer duration and Automatic switching starts after the automatic switching timer expires.
  • the source base station may send the traditional handover target cell list to the terminal, where the target cell that is ready for the traditional handover is included. If the terminal receives the list before the automatic switchover timer expires, the terminal will first consider selecting the target cell that is ready for traditional handover when the terminal performs automatic handover after the timer expires, because this will further reduce the handover delay.
  • the method for automatically switching the terminal in the embodiment of the present disclosure can effectively determine the time at which the handover preparation is initiated and select an appropriate target base station, thereby avoiding the problem of increasing the X2 signaling overhead caused by the source base station performing invalid handover preparation.
  • the condition that the source base station activates the terminal to automatically switch is specified, thereby avoiding unnecessary automatic switching of the terminal.
  • the embodiment of the present disclosure is a specific application embodiment of the foregoing first embodiment.
  • the embodiment of the present disclosure specifically describes a process in which a source base station activates an automatic handover function of a terminal and a source base station initiates automatic handover preparation.
  • the source base station is configured to activate the terminal automatic handover function and initiate the automatic handover preparation to configure the same trigger condition (that is, configure the measurement report condition), and simultaneously activate the terminal automatic handover function and initiate automatic handover preparation.
  • a method for automatically switching a terminal according to an embodiment of the present disclosure is applied to a base station, including:
  • Step 701 Acquire UE capability information of the terminal.
  • the source base station may receive UE capability information sent by the terminal or receive capability information of the UE of the terminal sent by other base stations.
  • Step 702 Determine, according to the UE capability information of the terminal, whether the terminal supports an automatic handover function.
  • the terminal that supports the automatic handover function includes an automatic handover function indication in the UE capability information sent to the network, and the source base station may determine, according to the UE capability information, whether the terminal supports the automatic handover function.
  • Step 703 Send a measurement configuration message for the automatic switching function and the automatic switching preparation to the terminal, and detect the obtained measurement report sent by the terminal for the automatic switching function and the automatic switching preparation.
  • Step 704 when determining that the terminal supports the automatic switching function, activate the automatic switching function of the terminal according to the measurement report prepared for the automatic switching function and the automatic switching preparation, and send an automatic to the target base station that needs automatic switching preparation. Switch the request.
  • the base station may send an activation automatic handover function indication to the terminal after receiving the automatic handover preparation request response sent by the target base station.
  • the source base station may indicate that the terminal activates the automatic handover function by sending the target cell list to the terminal, where the target cell list includes a target cell list supporting the automatic handover function and/or a target cell list with terminal context information.
  • the role of the target cell list supporting the automatic handover function is to enable the terminal to select a target cell according to the base station in the list to avoid handover failure.
  • the role of the target cell list with the terminal context information is to enable the terminal to select the target cell according to the base station in the list to avoid introducing an additional handover delay, which may be a fixed list for the terminal under each source base station, and may be accessible to the terminal.
  • the cells have different lists, and there may be different lists for the terminals under each source base station.
  • the terminal may first consider the target cell list with terminal context information, and secondly consider the target cell list supporting the automatic handover function.
  • the target cell list with the terminal context information. After the source base station receives the handover request response of the target base station, the source base station receives the handover request as the terminal with the terminal. The automatic switching target cell list of the context is sent to the terminal.
  • the terminal completely switches automatically, and the signaling process is as shown in FIG. 8:
  • the base station sends a measurement configuration message for the active automatic switching function and the automatic switching preparation to the terminal, and determines the automatic switching function of the activated terminal and selects when receiving the measurement report (Measurement Report) for the automatic switching function and the automatic switching preparation sent by the terminal.
  • the target base station needs to be automatically switched, and the base station sends an automatic handover preparation request message (Autonomous HO Request) to the target base station, and the target base station sends an Autonomous HO Request ACK to the base station. Then, the base station sends an activation automatic handover function indication (AUM active) message to the terminal, instructing the terminal to activate the automatic handover function.
  • AUM active activation automatic handover function indication
  • the application scenario 2 of the embodiment of the present disclosure is a hybrid handover between a traditional handover and a terminal automatic handover control under the control of a base station, and the signaling process is as shown in FIG. 9:
  • the base station sends a measurement configuration message for the automatic switching function and the automatic switching preparation to the terminal, and after receiving the measurement report (Measurement Report) for the automatic switching function and the automatic switching preparation sent by the terminal, determining the automatic switching function of the active terminal and selecting the required Automatically switch the prepared target base station.
  • the base station sends an automatic handover preparation request message (Autonomous HO Request) to the target base station, and the target base station sends an automatic handover preparation request response message (Autonomous HO Request ACK) to the base station.
  • the base station sends an activation automatic handover function indication (AUM active) message to the terminal, instructing the terminal to activate the automatic handover function.
  • AUM active activation automatic handover function indication
  • the base station sends a measurement configuration message for the hybrid handover to the terminal.
  • the automatic handover timer is started, and a measurement report (Measurement Report) for the hybrid handover is sent to the base station.
  • the base station sends a traditional handover preparation request message (HO Request) to the selected traditional handover target base station, and the target base station sends a handover request response message (HO Request ACK) to the base station, and then the base station sends a handover command (HO Command) to the terminal;
  • HO Request traditional handover preparation request message
  • HO Request ACK handover request response message
  • HO Command handover command
  • the terminal When the automatic switch timer expires (Timer Expire), the terminal is automatically switched, and the terminal autonomously selects the target cell and sends a handover request to the target cell (HO request to target cell).
  • the base station may not specifically send the activation automatic handover function indication message to the terminal, but implicitly instruct the terminal to activate the automatic handover function by sending a measurement configuration message for the hybrid handover.
  • the source base station may send an automatic switch timer configuration to the terminal to instruct the terminal to activate the automatic switch function, where the automatic switch timer is configured to determine, according to the automatic switch timer configuration, the automatic switch timer duration and Automatic switching starts after the automatic switching timer expires.
  • the source base station may send the traditional handover target cell list to the terminal, where the target cell that is ready for traditional handover is included. If the terminal receives the list before the automatic switchover timer expires, the terminal will first consider selecting the target cell that is ready for traditional handover when the terminal performs automatic handover after the timer expires, because this will further reduce the handover delay.
  • the method for automatically switching the terminal in the embodiment of the present disclosure can effectively determine the time at which the handover preparation is initiated and select an appropriate target base station, thereby avoiding the problem of increasing the X2 signaling overhead caused by the source base station performing invalid handover preparation.
  • the condition that the source base station activates the terminal to automatically switch is specified, thereby avoiding unnecessary automatic switching of the terminal.
  • an embodiment of the present disclosure further provides a base station, including:
  • the first detecting module 1001 is configured to send a measurement configuration message prepared for the automatic handover to the terminal, and detect the obtained measurement report for the automatic handover preparation sent by the terminal;
  • the first sending module 1002 is configured to send, according to the measurement report prepared for the automatic handover, an automatic handover request to a target base station that needs automatic handover preparation when determining that the terminal supports the automatic handover function; where the preparation is for automatic handover
  • the measurement configuration message includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover.
  • the base station of the embodiment of the present disclosure when determining that the terminal supports the automatic handover function, and receiving the measurement report for the automatic handover preparation sent by the terminal, initiates an automatic handover request to the target base station, thereby effectively determining the time at which the handover preparation is initiated, and avoiding The problem that the source base station performs an invalid handover preparation and increases the X2 signaling overhead.
  • the first sending module 1002 includes:
  • a first sending submodule configured to send an automatic handover request to the target base station that needs to be automatically switched, where the automatic handover request includes context information of the terminal.
  • the first sending module 1002 includes:
  • a second sending submodule configured to select the target base station that needs automatic handover preparation according to the cell that meets the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for the automatic handover, and to the need
  • the target base station that automatically prepares for handover automatically sends an automatic handover request.
  • the second sending submodule includes:
  • a first selecting unit configured to select, according to the measurement report prepared for the automatic handover preparation, a base station of a cell that satisfies the measurement report condition for the automatic handover preparation as a target base station that needs to be automatically switched;
  • a second selecting unit configured to select, as the target base station that needs to be automatically switched, the base station of the neighboring cell of the cell that meets the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for automatic handover.
  • the base station of the embodiment of the present disclosure further includes:
  • a second sending module configured to send a target cell list with terminal context information to the terminal before sending an automatic handover request to the target base station that needs automatic handover preparation; or after sending an automatic handover request to the target base station that needs automatic handover preparation, A target cell list with terminal context information is transmitted to the terminal.
  • the measurement report condition prepared for the automatic handover is loose or the same as the condition for triggering the automatic handover of the terminal.
  • the measurement event in the measurement report condition configuration prepared for automatic handover is one of A2-1, A3-1, A4, and A5 events.
  • the base station of the embodiment of the present disclosure further includes:
  • a first activation module configured to: activate an automatic switching function of the terminal when determining that the terminal supports an automatic switching function; or acquire a channel occupancy rate when the terminal supports an automatic switching function, where the channel occupancy rate is When the first preset threshold is greater than the first preset threshold, the automatic switching function of the terminal is activated; or when the terminal is determined to support the automatic switching function, and the automatic switching function request sent by the terminal is received, the automatic switching of the terminal is activated.
  • the base station of the embodiment of the present disclosure further includes:
  • a second detecting module configured to: when the terminal supports the automatic switching function, send a measurement configuration message for the automatic switching function to the terminal, and detect the obtained measurement for the activated automatic switching function sent by the terminal a report; wherein the measurement configuration message for activating an automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function;
  • a second activation module configured to activate an automatic switching function of the terminal according to the measurement report for activating an automatic switching function.
  • the measurement report condition for activating the automatic handover function is looser or the same as the condition for triggering the automatic handover of the terminal;
  • the measurement report condition prepared for the automatic handover is stricter or the same as the measurement report condition for the activation automatic handover function.
  • the measurement event in the measurement report condition configuration for activating the automatic handover function is one of A2-1, A3-1, A4, and A5 events.
  • the first activation module or the second activation module is used to:
  • Instructing the terminal to activate an automatic handover function by transmitting a target cell list to the terminal, the target cell list including a target cell list supporting an automatic handover function and/or a target cell list having terminal context information; and/or
  • the automatic switching timer is configured to send the automatic switching timer to the terminal, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration, and in the Automatic switching starts after the automatic switching timer expires; and/or,
  • the terminal is configured to activate an automatic switching function by transmitting a measurement configuration for triggering automatic switching to the terminal, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration that triggers automatic switching and a measurement report condition configuration.
  • the base station of the embodiment of the present disclosure further includes:
  • An acquiring module configured to acquire user equipment UE capability information of the terminal
  • a determining module configured to determine, according to the UE capability information of the terminal, whether the terminal supports an automatic switching function.
  • the base station of the embodiment of the present disclosure further includes:
  • a third detection module configured to send, to the terminal, a measurement configuration message for canceling automatic handover preparation, and detecting the acquired measurement report sent by the terminal for canceling automatic handover preparation; wherein the preparation for canceling automatic handover is performed
  • the measurement configuration message includes a measurement object configuration and a measurement report condition configuration prepared for canceling the automatic handover;
  • a third sending module configured to send a cancel automatic switching request to the target base station that cancels the automatic switching preparation according to the measurement report prepared for canceling the automatic switching.
  • the third sending module includes:
  • a third sending submodule configured to select, according to the cell that meets the measurement report condition for canceling automatic handover, in the measurement report prepared for canceling automatic handover, cancel the target base station for canceling automatic handover preparation, and cancel the target base station
  • the target base station that automatically prepares for handover initiates a request to release the context information of the terminal.
  • the third sending submodule includes:
  • a third selecting unit configured to select, according to the cell that meets the measurement report condition that cancels automatic handover preparation indicated in the measurement report prepared for canceling automatic handover, that the included at least one cell satisfies the cancellation automatic handover preparation a base station that measures the reporting condition as the target base station for canceling the automatic handover preparation;
  • a fourth selecting unit configured to select, according to the cell that meets the measurement report condition that cancels automatic handover preparation indicated in the measurement report for canceling automatic handover, that all cells included include the measurement of canceling automatic handover preparation
  • the base station reporting the condition serves as the target base station for canceling the automatic handover preparation.
  • the measurement report condition for canceling the automatic handover preparation is strict or the same as the condition for not triggering the automatic handover of the terminal.
  • the measurement event in the measurement report condition configuration for canceling automatic handover preparation is an A2-2 or A3-2 event.
  • the base station of the embodiment of the present disclosure further includes:
  • the first deactivation module is configured to deactivate the automatic switching function of the terminal.
  • the method is specifically configured to obtain a channel occupancy rate, and when the channel occupancy rate is less than a second preset threshold, deactivating an automatic switching function of the terminal; or receiving a request for deactivating an automatic switching function sent by the terminal. At the time, the automatic switching function of the terminal is deactivated.
  • the channel occupancy rate is the detected number of other base station cells except the base station.
  • the channel occupancy ratio is a ratio of the number of times the channel is occupied and the total number of times the channel occupancy detection is detected before the data is transmitted in the first preset time;
  • the channel occupancy rate is a ratio of the number of times the channel is occupied to the total number of times the channel occupancy detection is detected when the channel occupancy detection is periodically performed within the second preset time; or
  • the channel occupancy rate is a ratio of a time when the average received signal strength detected in the third preset time exceeds a third preset threshold and the third preset time.
  • the base station of the embodiment of the present disclosure further includes:
  • a fourth detecting module configured to send a measurement configuration message for deactivating the automatic switching function to the terminal, and detecting the obtained measurement report sent by the terminal for the deactivation automatic switching function; wherein the deactivating The measurement configuration message of the automatic switching function includes a measurement object configuration and a measurement report condition configuration for deactivating the automatic switching function;
  • a second deactivation module configured to deactivate the automatic switching function of the terminal according to the measurement report for deactivating the automatic switching function.
  • the measurement report condition for the deactivated automatic handover function is strict or the same as the condition for not triggering the automatic handover of the terminal.
  • the measurement event in the measurement report condition configuration for deactivating the automatic handover function is an A2-2 or A3-2 event.
  • the base station of the embodiment of the present disclosure when determining that the terminal supports the automatic handover function, and receiving the measurement report for the automatic handover preparation sent by the terminal, initiates an automatic handover request to the target base station, thereby effectively determining the time at which the handover preparation is initiated, and avoiding The problem that the source base station performs an invalid handover preparation and increases the X2 signaling overhead.
  • the base station in the embodiment of the present disclosure can implement the steps in the foregoing method embodiments applied to the base station, and can achieve the same technical effect.
  • a method for automatically switching a terminal according to an embodiment of the present disclosure is applied to a terminal, including:
  • Step 1101 Receive a measurement configuration message sent by the base station for automatic handover preparation.
  • the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover.
  • Step 1102 According to the measurement configuration message prepared for automatic handover, when the measurement report condition for automatic handover preparation is met, a measurement report for automatic handover preparation is sent to the base station, where the base station receives the The prepared measurement report is automatically switched and when it is determined that the terminal supports the automatic handover function, an automatic handover request is sent to the target base station that needs automatic handover preparation.
  • the terminal performs channel measurement according to a measurement configuration message prepared for automatic handover, and sends a measurement report to the source base station when the measurement report condition for automatic handover preparation is satisfied, and the source base station determines the terminal.
  • the automatic switching function is supported, and when the measurement report for the automatic handover preparation sent by the terminal is received, the automatic handover request is initiated to the target base station, thereby effectively determining the time at which the handover preparation is initiated, and avoiding the source base station performing the invalid handover preparation. Increase the problem of X2 signaling overhead.
  • the method for automatically switching the terminal in the embodiment of the present disclosure further includes:
  • Step 1103 Obtain a channel occupancy rate, and send an activation automatic switching function request to the base station when the channel occupancy rate is greater than a first preset threshold.
  • the terminal determines whether to send an activation automatic handover function request according to the channel occupancy rate detected by the terminal, and if the currently detected channel occupancy rate or the average channel occupancy rate detected within the preset time exceeds a specified threshold, the terminal sends an activation automatic handover function request. Because the higher the channel occupancy rate is, the less idle subframes the terminal can utilize, and the greater the delay in transmitting the measurement report.
  • Step 1104 Activate an automatic switching function according to the indication of the base station.
  • the source base station when the source base station receives the activation automatic handover function request sent by the terminal, the source base station is instructed to activate the automatic handover function.
  • the source base station may further determine whether to activate the automatic switching function of the terminal according to the channel occupancy rate when determining that the terminal supports the automatic switching function. If the currently detected channel occupancy rate or the average channel occupancy rate detected within the preset time exceeds a specified threshold (the first preset threshold), the terminal is instructed to activate the automatic handover function, because the higher the channel occupancy rate is detected, the source base station is indicated. The fewer idle subframes that can be utilized, the greater the delay in sending a handover command.
  • the method for automatically switching the terminal in the embodiment of the present disclosure further includes:
  • Step 1105 Receive a measurement configuration message sent by the base station for activating an automatic switching function, where the measurement configuration for activating an automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function.
  • Step 1106 Send, according to the measurement configuration message for activating automatic handover, a measurement report for activating automatic handover to the base station when the measurement report condition for activating an automatic handover function is met;
  • Step 1107 Activate an automatic switching function according to the indication of the base station.
  • the source base station transmits a measurement configuration message for activating an automatic handover function to the terminal, including a measurement object configuration and a measurement report condition configuration.
  • the terminal performs channel measurement according to the measurement configuration message for activating the automatic handover function, and transmits a measurement report to the source base station when it is measured that the measurement report condition for activating the automatic handover function is satisfied.
  • the source base station receives a measurement report for activating the automatic handover function, instructing the terminal to activate the automatic handover function.
  • the step of activating the automatic switching function according to the indication of the base station includes:
  • the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information;
  • the automatic switching function is activated when the automatic switching timer configuration sent by the base station is received, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration and the automatic switching. Automatic switching starts after the timer expires; and/or
  • the automatic switching function is activated when receiving the measurement configuration for triggering automatic switching sent by the base station, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration and a measurement report condition configuration that trigger automatic switching.
  • the method for automatically switching the terminal in the embodiment of the present disclosure further includes:
  • Step 1108 Receive a measurement configuration message sent by the base station for canceling automatic handover preparation, where the measurement configuration for canceling automatic handover preparation includes a measurement object configuration and a measurement report condition configuration prepared for canceling automatic handover preparation;
  • Step 1109 Send, according to the measurement configuration message for canceling automatic handover, a measurement report for canceling automatic handover to the base station when the measurement report condition for canceling automatic handover preparation is satisfied.
  • the source base station transmits a measurement configuration message for canceling the automatic handover preparation to the terminal, wherein the measurement configuration message prepared for canceling the automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for canceling the automatic handover preparation.
  • the terminal performs channel measurement according to a measurement configuration message prepared for canceling automatic handover, and transmits a measurement report to the source base station when it is measured that the measurement report condition for canceling the automatic handover preparation is satisfied.
  • the source base station receives the measurement report prepared for canceling the automatic handover, the source base station sends a cancel automatic handover request to the target base station that cancels the automatic handover preparation, which may include the identifier information of the terminal.
  • the method for automatically switching the terminal in the embodiment of the present disclosure further includes:
  • Step 1110 Deactivate the automatic switching function according to the indication of the base station.
  • the method further includes:
  • Step 1111 Obtain a channel occupancy rate, and send a deactivation automatic switching function request to the base station when the channel occupancy rate is less than a second preset threshold.
  • the terminal determines whether to send the deactivated automatic handover function request according to the channel occupancy rate detected by the terminal. If the currently detected channel occupancy rate or the average channel occupancy rate detected within the preset time is less than a specified threshold, the terminal sends an automatic deactivation. Feature request.
  • the source base station may also determine whether to deactivate the automatic switching function of the terminal according to the channel occupancy rate. If the currently detected channel occupancy rate or the average channel occupancy rate detected within the preset time is less than a specified threshold, the terminal is instructed to deactivate the automatic switching function.
  • the method further includes:
  • Step 1112 Receive a measurement configuration message sent by the base station for a deactivate automatic handover function, where the measurement configuration for the deactivation automatic handover function includes a measurement object configuration and a measurement report condition configuration for deactivating the automatic handover function.
  • Step 1113 according to the measurement configuration message for deactivating the automatic switching function, sending a measurement report for the deactivation automatic switching function to the base station when the measurement report condition for deactivating the automatic switching function is satisfied.
  • the source base station transmits a measurement configuration message for the deactivation automatic handover function to the terminal, including the measurement object configuration and the measurement report condition configuration.
  • the terminal performs channel measurement according to the measurement configuration message for deactivating the automatic switching function, and sends a measurement report to the source base station when it is measured that the measurement report condition for deactivating the automatic switching function is satisfied.
  • the source base station receives a measurement report for the deactivated automatic handover function, instructing the terminal to deactivate the automatic handover function.
  • the terminal performs channel measurement according to a measurement configuration message prepared for automatic handover, and sends a measurement report to the source base station when the measurement report condition for automatic handover preparation is satisfied, and the source base station determines the terminal.
  • the automatic switching function is supported, and when the measurement report for the automatic handover preparation sent by the terminal is received, the automatic handover request is initiated to the target base station, thereby effectively determining the time at which the handover preparation is initiated, and avoiding the source base station performing the invalid handover preparation. Increase the problem of X2 signaling overhead.
  • the terminal of the embodiment of the present disclosure includes:
  • the first receiving module 1201 is configured to receive a measurement configuration message sent by the base station for automatic handover preparation, where the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover;
  • the fourth sending module 1202 is configured to send, according to the measurement configuration message prepared for automatic handover, a measurement report prepared for automatic handover to the base station, when the measurement report condition for automatic handover preparation is met, for the base station Receiving the measurement report prepared for automatic handover and transmitting an automatic handover request to the target base station that needs automatic handover preparation when determining that the terminal supports the automatic handover function.
  • the terminal of the embodiment of the present disclosure performs channel measurement according to the measurement configuration message prepared for automatic handover, and sends a measurement report to the source base station when the measurement report condition for automatic handover preparation is met, and the source base station determines that the terminal supports the automatic handover function. And when the measurement report for the automatic handover preparation sent by the terminal is received, the automatic handover request is initiated to the target base station, thereby effectively determining the time at which the handover preparation is initiated, and avoiding the increase of the X2 signaling caused by the source base station performing the invalid handover preparation.
  • the problem of overhead is provided.
  • the terminal of the embodiment of the present disclosure further includes:
  • a fifth sending module configured to acquire a channel occupancy rate, and send an activation automatic switching function request to the base station when the channel occupancy rate is greater than a first preset threshold
  • a third activation module configured to activate an automatic switching function according to the indication of the base station.
  • the terminal of the embodiment of the present disclosure further includes:
  • a second receiving module configured to receive a measurement configuration message sent by the base station for activating an automatic switching function, where the measurement configuration for activating an automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function ;
  • a sixth sending module configured to send, according to the measurement configuration message for activating an automatic handover, a measurement report for activating an automatic handover to the base station when the measurement report condition for activating an automatic handover function is met;
  • a fourth activation module configured to activate an automatic switching function according to the indication of the base station.
  • the third activation module or the fourth activation module is used to:
  • the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information;
  • the automatic switching function is activated when the automatic switching timer configuration sent by the base station is received, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration and the automatic switching. Automatic switching starts after the timer expires; and/or
  • the automatic switching function is activated when receiving the measurement configuration for triggering automatic switching sent by the base station, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration and a measurement report condition configuration that trigger automatic switching.
  • the terminal of the embodiment of the present disclosure further includes:
  • a third receiving module configured to receive a measurement configuration message sent by the base station for canceling automatic handover preparation, where the measurement configuration for canceling automatic handover preparation includes a measurement object configuration and a measurement report condition configuration for canceling automatic handover preparation ;
  • a seventh sending module configured to send, according to the measurement configuration message for canceling automatic handover, a measurement report for canceling automatic handover to the base station when the measurement report condition for canceling automatic handover preparation is satisfied.
  • the terminal of the embodiment of the present disclosure further includes:
  • a third deactivation module configured to deactivate the automatic switching function according to the indication of the base station.
  • the terminal of the embodiment of the present disclosure further includes:
  • an eighth sending module configured to acquire a channel occupancy rate, and send a deactivation automatic switching function request to the base station when the channel occupancy rate is less than a second preset threshold.
  • the terminal of the embodiment of the present disclosure further includes:
  • a fourth receiving module configured to receive a measurement configuration message sent by the base station for the deactivation automatic switching function, where the measurement configuration for the deactivation automatic switching function includes measurement object configuration and measurement for deactivating the automatic switching function Report condition configuration;
  • a ninth sending module configured to send, according to the measurement configuration message for deactivating the automatic switching function, a measurement report for the deactivation automatic switching function to the base station when the measurement report condition for deactivating the automatic switching function is met .
  • the terminal of the embodiment of the present disclosure performs channel measurement according to the measurement configuration message prepared for automatic handover, and sends a measurement report to the source base station when the measurement report condition for automatic handover preparation is met, and the source base station determines that the terminal supports the automatic handover function. And when the measurement report for the automatic handover preparation sent by the terminal is received, the automatic handover request is initiated to the target base station, thereby effectively determining the time at which the handover preparation is initiated, and avoiding the increase of the X2 signaling caused by the source base station performing the invalid handover preparation.
  • the problem of overhead is provided.
  • the terminal in the embodiment of the present disclosure can implement the steps in the foregoing method embodiments applied to the terminal, and can achieve the same technical effect.
  • an embodiment of the present disclosure provides a base station, including:
  • the processor 1301 is configured to send a measurement configuration message prepared for automatic handover to the terminal, and detect the obtained measurement report for the automatic handover preparation sent by the terminal;
  • the transmitter 1302 is configured to send, according to the measurement report prepared for the automatic handover, an automatic handover request to a target base station that needs automatic handover preparation when determining that the terminal supports the automatic handover function, where the measurement is prepared for automatic handover preparation.
  • the configuration message includes a measurement object configuration and a measurement report condition configuration prepared for automatic switching.
  • the processor 1301 can also be configured and implement the functions implemented by all the modules in the foregoing base station embodiment, and can achieve the same technical effects as those of the foregoing base station embodiments.
  • the terminal of the embodiment of the present disclosure includes:
  • a receiver 1401 configured to receive a measurement configuration message sent by the base station for automatic handover preparation;
  • the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover;
  • the transmitter 1402 is configured to send, according to the measurement configuration message prepared for automatic handover, a measurement report prepared for automatic handover to the base station, when the measurement report condition for automatic handover preparation is met, for the base station to receive The measurement report prepared for the automatic handover and when it is determined that the terminal supports the automatic handover function, sends an automatic handover request to the target base station that needs automatic handover preparation.
  • the terminal of the embodiment of the present disclosure further includes a processor, and the processor can also be configured to implement the functions implemented by all the modules in the foregoing terminal embodiment, and can achieve the same technical effects as those of the foregoing terminal embodiment.
  • a base station is provided, as shown in FIG. 15, including: a sending module 1501, configured to: when determining that the terminal supports an automatic switching function, to a target base station that needs to prepare for automatic handover of the terminal An automatic switching request is sent; an activation module 1502 is configured to activate an automatic switching function of the terminal to enable the terminal to initiate automatic switching.
  • a base station including: a processor 1601, a memory 1602, and a transceiver 1603; wherein: the transceiver 1603 is configured to, when determining that the terminal supports the automatic switching function, to The target base station that needs to perform automatic handover preparation for the terminal sends an automatic handover request, and receives an automatic handover request response sent by the target base station; the processor 1601 is configured to activate the instruction by executing an instruction stored by the memory 1602. The automatic switching function of the terminal enables the terminal to initiate automatic switching.
  • the terminal base station is used to activate and deactivate the terminal automatic switching, thereby avoiding unnecessary automatic switching of the terminal.
  • a terminal is provided, as shown in FIG. 17, including: a receiving module 1701, configured to receive an indication sent by a base station, where the base station determines that the terminal supports an automatic switching function
  • the target base station that performs automatic handover preparation by the terminal sends an automatic handover request and receives an automatic handover request response sent by the target base station; and the activation module 1702 is configured to activate the automatic handover function according to the indication of the base station.
  • a terminal is provided, as shown in FIG. 18, including: a processor 1801, a memory 1802, and a transceiver 1803; wherein: the transceiver 1803 is configured to receive an indication sent by a base station, where When determining that the terminal supports the automatic handover function, the base station sends an automatic handover request to the target base station that needs to prepare for automatic handover of the terminal, and receives an automatic handover request response sent by the target base station; the processor 1801 executes the The memory 1802 stores instructions for activating an automatic switching function according to an indication of a base station.
  • the terminal described in the embodiment of the present disclosure may be a mobile phone (or mobile phone), or other device capable of transmitting or receiving a wireless signal, including a user equipment (terminal), a personal digital assistant (PDA), a wireless modem, Wireless communication devices, handheld devices, laptop computers, cordless phones, wireless local loop (WLL) stations, CPE or Mifi capable of converting mobile signals into wifi signals, smart home appliances, or other non-human operations can spontaneously Equipment for communication in a mobile communication network, etc.
  • a user equipment terminal
  • PDA personal digital assistant
  • WLL wireless local loop
  • CPE wireless local loop
  • a method for automatically switching a terminal, applied to a base station comprising:
  • the automatic switching function of the terminal is activated to enable the terminal to initiate automatic switching.
  • the method before the sending an automatic handover request to the target base station that needs to prepare for the automatic handover of the terminal, the method further includes:
  • the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover;
  • the base station supporting the automatic handover function is selected as the target base station that needs to be automatically switched.
  • the target base station requiring automatic handover preparation is selected according to the cell that satisfies the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for the automatic handover.
  • A5 The method according to claim A4, wherein the selecting a target requiring automatic handover preparation according to a cell that satisfies the measurement report condition for automatic handover preparation indicated in the measurement report prepared for automatic handover Base station, including:
  • the base station to which the neighboring cell of the cell that satisfies the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for the automatic handover is selected as the target base station that is ready for automatic handover.
  • a target cell list with terminal context information is transmitted to the terminal.
  • A9 The method of claim A8, wherein the measurement event in the measurement report condition configuration for automatic handover preparation is one of A2-1, A3-1, A4, and A5 events.
  • the terminal When it is determined that the terminal supports the automatic switching function, sending, to the terminal, a measurement configuration message for activating an automatic switching function, receiving and detecting, by the terminal, automatic switching for activation according to the measurement configuration message for the active automatic switching function.
  • a measurement report of the function wherein the measurement configuration message for activating the automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function;
  • the method Before the activating the automatic switching function of the terminal, the method includes:
  • the measurement report condition prepared for the automatic handover is stricter or the same as the measurement report condition for the activation automatic handover function.
  • A13 The method of claim A11 or A12, wherein the measurement event in the measurement report condition configuration for activating an automatic switching function is one of A2-1, A3-1, A4, and A5 events.
  • Target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information;
  • the automatic switching timer is configured to send the automatic switching timer to the terminal, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration, and in the Automatic switching starts after the automatic switching timer expires; and/or,
  • the terminal is configured to activate an automatic switching function by transmitting a measurement configuration for triggering automatic switching to the terminal, wherein the measurement configuration message triggering automatic switching includes a measurement object configuration and a measurement report condition configuration that trigger automatic switching.
  • the measurement configuration message prepared by the automatic switching includes the measurement object configuration and the measurement report condition configuration prepared for canceling the automatic switching;
  • the cancel automatic handover request is sent to the target base station that cancels the automatic handover preparation.
  • A17 The method according to claim A16, wherein before the canceling the automatic handover request to the target base station that cancels the automatic handover preparation, the method further includes:
  • the target base station that cancels the automatic handover preparation is selected according to the cell that satisfies the measurement report condition for canceling the automatic handover preparation indicated in the measurement report prepared for canceling the automatic handover.
  • the base station Determining, according to the cell indicating the measurement report condition that cancels the automatic handover preparation indicated in the measurement report for canceling the automatic handover preparation, the base station that includes the at least one cell that satisfies the measurement report condition for canceling the automatic handover preparation as the Determining the target base station for automatic handover preparation;
  • the base station Determining, according to the cell indicating the measurement report condition that cancels the automatic handover preparation indicated in the measurement report for canceling the automatic handover, the base station including all the cells that satisfy the measurement report condition of canceling the automatic handover preparation as the Cancel the target base station for automatic switching preparation.
  • A21 The method of claim A20, wherein the measurement event in the measurement report condition configuration for canceling automatic handover preparation is an A2-2 or A3-2 event.
  • the channel occupancy rate is the number of detected other base station cells except the base station.
  • the channel occupancy ratio is a ratio of the number of times the channel is occupied and the total number of times the channel occupancy detection is detected before the data is transmitted in the first preset time;
  • the channel occupancy rate is a ratio of the number of times the channel is occupied to the total number of times the channel occupancy detection is detected when the channel occupancy detection is periodically performed within the second preset time; or
  • the channel occupancy rate is a ratio of a time when the average received signal strength detected in the third preset time exceeds a third preset threshold and the third preset time.
  • the measurement configuration message for deactivating the automatic switching function includes a measurement object configuration and a measurement report condition configuration for deactivating the automatic switching function;
  • the automatic switching function of the terminal is deactivated according to the measurement report for deactivating the automatic switching function.
  • A27 The method of claim A26, wherein the measurement event in the measurement report condition configuration for the deactivate automatic switching function is an A2-2 or A3-2 event.
  • Instructing the terminal to deactivate an automatic handover function by sending a configuration target cell list instruction to the terminal, where the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information; and/ or,
  • Instructing the terminal to deactivate the automatic switching function by sending a measurement configuration to the terminal to configure the automatic switching for triggering, wherein the measurement configuration message triggering automatic switching includes a measurement object configuration and a measurement report condition configuration that trigger automatic switching.
  • a base station comprising:
  • a first sending module configured to: when determining that the terminal supports the automatic switching function, send an automatic switching request to a target base station that needs to prepare for automatic handover of the terminal;
  • a first activation module configured to activate an automatic switching function of the terminal, so that the terminal can initiate automatic switching.
  • a first detecting module configured to send, to the terminal, a measurement configuration message prepared for automatic handover, and receive and detect, according to the measurement configuration message prepared by the terminal according to the automatic handover preparation, when the measurement report condition prepared for automatic handover is satisfied
  • the first sending module includes:
  • selecting a submodule configured to select, as the target base station that needs automatic handover preparation, a base station that supports an automatic handover function before the first sending module sends an automatic handover request to a target base station that needs automatic handover preparation.
  • a second sending submodule configured to: according to the cell selection condition that meets the measurement report condition prepared for the automatic handover, which is indicated in the measurement report prepared for the automatic handover, before the automatic handover request is sent to the target base station that needs automatic handover preparation
  • the target base station that needs to automatically switch preparation is sent, and an automatic handover request is sent to the target base station that needs automatic handover preparation.
  • a first selecting unit configured to select, according to the measurement report prepared for the automatic handover preparation, a base station of a cell that satisfies the measurement report condition for the automatic handover preparation as a target base station that needs to be automatically switched;
  • a second selecting unit configured to select, as the target base station that needs to be automatically switched, the base station of the neighboring cell of the cell that meets the measurement report condition for the automatic handover preparation indicated in the measurement report prepared for automatic handover.
  • the first sending submodule is configured to send an automatic handover request to the target base station that needs automatic handover preparation, where the automatic handover request includes context information of the terminal.
  • a second sending module configured to send, to the terminal, a target cell list with terminal context information.
  • a second detecting module configured to: when the terminal supports the automatic switching function, send a measurement configuration message for the automatic switching function to the terminal, and receive and detect the measurement configuration of the terminal according to the automatic switching function for activation a measurement report sent by the message for activating an automatic switching function; wherein the measurement configuration message for activating an automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function;
  • a second activation module configured to determine an automatic switching function for activating the terminal according to the measurement report for activating an automatic switching function.
  • the measurement report condition prepared for the automatic handover is stricter or the same as the measurement report condition for the activation automatic handover function.
  • Instructing the terminal to activate an automatic handover function by transmitting a target cell list to the terminal, the target cell list including a target cell list supporting an automatic handover function and/or a target cell list having terminal context information; and/or
  • the automatic switching timer is configured to send the automatic switching timer to the terminal, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration, and in the Automatic switching starts after the automatic switching timer expires; and/or
  • the terminal is configured to activate an automatic switching function by transmitting a measurement configuration for triggering automatic switching to the terminal, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration that triggers automatic switching and a measurement report condition configuration.
  • An acquiring module configured to acquire user equipment UE capability information of the terminal
  • a determining module configured to determine, according to the UE capability information of the terminal, whether the terminal supports an automatic switching function.
  • a third detection module configured to send, to the terminal, a measurement configuration message for canceling automatic handover preparation, and receiving and detecting a measurement report prepared by the terminal according to the measurement configuration message prepared for canceling automatic handover, for canceling automatic handover preparation
  • the measurement configuration message prepared for canceling automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for canceling automatic handover;
  • a third sending module configured to send a cancel automatic switching request to the target base station that cancels the automatic switching preparation according to the measurement report prepared for canceling the automatic switching.
  • a third sending submodule configured to select, according to the cell that meets the measurement report condition for canceling automatic handover, in the measurement report prepared for canceling automatic handover, cancel the target base station for canceling automatic handover preparation, and cancel the target base station
  • the target base station that automatically prepares for handover initiates a request to release the context information of the terminal.
  • a third selecting unit configured to select, according to the cell that meets the measurement report condition that cancels automatic handover preparation indicated in the measurement report prepared for canceling automatic handover, that the included at least one cell satisfies the cancellation automatic handover preparation a base station that measures the reporting condition as the target base station for canceling the automatic handover preparation;
  • a fourth selecting unit configured to select, according to the cell that meets the measurement report condition that cancels automatic handover preparation indicated in the measurement report for canceling automatic handover, that all cells included include the measurement of canceling automatic handover preparation
  • the base station reporting the condition serves as the target base station for canceling the automatic handover preparation.
  • the first deactivation module is configured to deactivate the automatic switching function of the terminal.
  • the base station according to claim B51 wherein the first deactivation module is specifically configured to acquire a channel occupancy rate, and when the channel occupancy rate is less than a second preset threshold, deactivate the automatic switching of the terminal.
  • the channel occupancy ratio is a ratio of the number of times the channel is occupied and the total number of times the channel occupancy detection is detected before the data is transmitted in the first preset time;
  • the channel occupancy rate is a ratio of the number of times the channel is occupied to the total number of times the channel occupancy detection is detected when the channel occupancy detection is periodically performed within the second preset time; or
  • the channel occupancy rate is a ratio of a time when the average received signal strength detected in the third preset time exceeds a third preset threshold and the third preset time.
  • a fourth detecting module configured to send, to the terminal, a measurement configuration message for deactivating an automatic switching function, and receiving and detecting a measurement report sent by the terminal for a deactivated automatic switching function; wherein the automatic switching for deactivation is performed
  • the measurement configuration message of the function includes a measurement object configuration and a measurement report condition configuration for deactivating the automatic switching function;
  • a second deactivation module configured to deactivate the automatic switching function of the terminal according to the measurement report for deactivating the automatic switching function.
  • Instructing the terminal to deactivate an automatic handover function by sending a configuration target cell list instruction to the terminal, where the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information; and/ or
  • a method for automatically switching a terminal which is applied to a terminal, and includes:
  • the automatic switching function is activated according to the indication of the base station.
  • the method before the receiving the indication sent by the base station, the method further comprises:
  • a measurement configuration message for automatic handover preparation receives, by the base station, a measurement configuration message for automatic handover preparation, where the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover;
  • a measurement report for automatic handover preparation is sent to the base station, so that the base station determines that the terminal supports automatic
  • an automatic handover request is sent to the target base station that needs automatic handover preparation according to the received measurement report prepared for automatic handover.
  • the method before the receiving the indication sent by the base station, the method further comprises:
  • the base station Receiving, by the base station, a measurement configuration message for activating an automatic switching function; wherein the measurement configuration for activating an automatic switching function includes a measurement object configuration and a measurement report condition configuration for activating an automatic switching function;
  • a measurement report for activating automatic handover is sent to the base station when the measurement report condition for activating the automatic handover function is satisfied.
  • step of activating the automatic switching function according to the indication of the base station comprises:
  • the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information;
  • the automatic switching function is activated when the automatic switching timer configuration sent by the base station is received, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration and the automatic switching. Automatic switching starts after the timer expires; and/or
  • the automatic switching function is activated when receiving the measurement configuration for triggering automatic switching sent by the base station, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration and a measurement report condition configuration that trigger automatic switching.
  • the base station Receiving, by the base station, a measurement configuration message for canceling automatic handover preparation; wherein the measurement configuration for canceling automatic handover preparation includes a measurement object configuration and a measurement report condition configuration for canceling automatic handover preparation;
  • a measurement report for canceling automatic handover is sent to the base station when the measurement report condition for canceling automatic handover preparation is satisfied.
  • the automatic switching function is activated according to the indication of the base station.
  • the method further comprises:
  • the method further comprises:
  • the base station Receiving, by the base station, a measurement configuration message for deactivating an automatic handover function; wherein the measurement configuration for deactivating an automatic handover function includes a measurement object configuration and a measurement report condition configuration for deactivating an automatic handover function;
  • a measurement report for the deactivation automatic handover function is sent to the base station when the measurement report condition for deactivating the automatic handover function is satisfied.
  • the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information; and/or,
  • an automatic switching timer configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration and Automatic switching starts after the automatic switching timer expires;
  • a measurement configuration indication for triggering automatic handover to deactivate the automatic handover function, where the measurement configuration of triggering automatic handover includes a measurement object configuration and a measurement report condition configuration that trigger automatic handover.
  • a terminal comprising:
  • a first receiving module configured to receive an indication sent by the base station, where the base station sends an automatic handover request to the target base station that needs to prepare for automatic handover of the terminal, and receives the target base station when determining that the terminal supports the automatic handover function Automatic switching request response sent;
  • An activation module is configured to activate an automatic switching function according to an indication of the base station.
  • the first receiving module is further configured to receive a measurement configuration message sent by the base station for automatic handover preparation, where the measurement configuration message prepared for automatic handover includes a measurement object configuration and a measurement report condition configuration prepared for automatic handover;
  • the terminal further includes:
  • a fourth sending module configured to send, according to the measurement configuration message prepared for automatic handover, a measurement report prepared for automatic handover to the base station when the measurement report condition for automatic handover preparation is met, so that the base station
  • the automatic handover request is sent to the target base station that needs automatic handover preparation according to the received measurement report prepared for automatic handover.
  • a fifth sending module configured to: before the activation module activates the automatic switching function according to the indication of the base station, acquire a channel occupancy rate, and send an activation automatic switching function to the base station when the channel occupancy rate is greater than a first preset threshold. request.
  • a second receiving module configured to receive, before the activation module activates the automatic switching function according to the indication of the base station, a measurement configuration message sent by the base station for activating an automatic switching function; wherein the measurement configuration for activating an automatic switching function Includes measurement object configuration and measurement report condition configuration for activating the automatic switching function;
  • a sixth sending module configured to send, according to the measurement configuration message for activating automatic handover, a measurement report for activating automatic handover to the base station when the measurement report condition for activating an automatic handover function is met.
  • the target cell list includes a target cell list supporting an automatic handover function and/or a target cell list having terminal context information;
  • the automatic switching function is activated when the automatic switching timer configuration sent by the base station is received, where the automatic switching timer is configured to determine, according to the automatic switching timer configuration, an automatic switching timer duration and the automatic switching. Automatic switching starts after the timer expires; and/or
  • the automatic switching function is activated when receiving the measurement configuration for triggering automatic switching sent by the base station, wherein the measurement configuration for triggering automatic switching includes a measurement object configuration and a measurement report condition configuration that trigger automatic switching.
  • a third receiving module configured to receive a measurement configuration message sent by the base station for canceling automatic handover preparation, where the measurement configuration for canceling automatic handover preparation includes a measurement object configuration and a measurement report condition configuration for canceling automatic handover preparation ;
  • a seventh sending module configured to send, according to the measurement configuration message for canceling automatic handover, a measurement report for canceling automatic handover to the base station when the measurement report condition for canceling automatic handover preparation is satisfied.
  • a third deactivation module configured to deactivate the automatic switching function according to the indication of the base station.
  • an eighth sending module configured to acquire a channel occupancy rate, and send a deactivation automatic switching function request to the base station when the channel occupancy rate is less than a second preset threshold.
  • a fourth receiving module configured to receive a measurement configuration message sent by the base station for the deactivation automatic switching function, where the measurement configuration for the deactivation automatic switching function includes measurement object configuration and measurement for deactivating the automatic switching function Report condition configuration;
  • a ninth sending module configured to send, according to the measurement configuration message for deactivating the automatic switching function, a measurement report for the deactivation automatic switching function to the base station when the measurement report condition for deactivating the automatic switching function is met .
  • a base station comprising: a processor, a memory, and a transceiver; wherein:
  • the transceiver is configured to: when determining that the terminal supports the automatic switching function, send an automatic handover request to a target base station that needs to prepare for automatic handover of the terminal, and receive an automatic handover request response sent by the target base station;
  • the processor is configured to activate an automatic switching function of the terminal by executing an instruction stored in the memory to enable the terminal to initiate automatic switching.
  • a terminal comprising: a processor, a memory, and a transceiver; wherein:
  • the transceiver is configured to receive an indication sent by the base station, where the base station sends an automatic handover request to the target base station that needs to prepare for automatic handover of the terminal, and receives the target base station when determining that the terminal supports the automatic handover function. Automatic switching request response sent;
  • the processor is configured to activate an automatic switching function according to an indication of a base station by executing an instruction stored by the memory.
  • a computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the steps of the method of any one of claims A1-A29 .
  • a computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the steps of the method of any one of claims C59-C69 .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de commutation automatique pour un terminal, une station de base et un terminal. Le procédé est appliqué à une station de base et comprend les étapes suivantes : lorsqu'il est déterminé que le terminal prend en charge une fonction de commutation automatique, envoyer une demande de commutation automatique à une station de base cible devant préparer le terminal pour une commutation automatique ; recevoir une réponse de demande de commutation automatique envoyée par la station de base cible ; et activer la fonction de commutation automatique du terminal, de sorte que le terminal puisse démarrer la commutation automatique.
PCT/CN2018/073364 2017-01-20 2018-01-19 Procédé de commutation automatique pour terminal, station de base, et terminal Ceased WO2018133831A1 (fr)

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CN201710042898.2 2017-01-20
CN201710042898.2A CN108337700B (zh) 2017-01-20 2017-01-20 一种终端自动切换的方法、基站及终端

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