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WO2018141287A1 - Procédé de commutation automatique, système, station de base et équipement utilisateur - Google Patents

Procédé de commutation automatique, système, station de base et équipement utilisateur Download PDF

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Publication number
WO2018141287A1
WO2018141287A1 PCT/CN2018/075278 CN2018075278W WO2018141287A1 WO 2018141287 A1 WO2018141287 A1 WO 2018141287A1 CN 2018075278 W CN2018075278 W CN 2018075278W WO 2018141287 A1 WO2018141287 A1 WO 2018141287A1
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WO
WIPO (PCT)
Prior art keywords
measurement
user equipment
base station
handover
measurement configuration
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/CN2018/075278
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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 WO2018141287A1 publication Critical patent/WO2018141287A1/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
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0088—Scheduling hand-off measurements
    • 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 application relates to the field of wireless communications technologies, and in particular, to an automatic handover method, system, base station, and user equipment.
  • MuLTE-Fire is a wireless access technology that extends Long Term Evolution (LTE) to unlicensed bands.
  • LTE Long Term Evolution
  • unlicensed band carriers can be independently served without the aid of a licensed band carrier.
  • Wi-Fi Wireless-Fidelity
  • the MuLTE-Fire physical layer is introduced.
  • a Listening Before Talk (LBT) mechanism similar to Wi-Fi's carrier monitoring technology. The principle of the LBT mechanism is that when the base station or the user equipment monitors that the unlicensed band channel is occupied, when the LBT fails, the signal is stopped to be sent to the opposite end. On the contrary, if the unlicensed band channel is idle, the LBT is considered to be successful, and the signal is sent. Peer.
  • LBT Listening Before Talk
  • DRS Discovery Reference Signal
  • PSS System broadcast and primary synchronization signal
  • SSS Secondary Sync 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-Multefire
  • DRS occupies 12 or 14 symbols in a downlink subframe (Symbol) .
  • the user equipment can obtain DRS, MIB, and SIB-MF in the Discovery Signals Measurement Timing Configuration (DMTC) window.
  • DMTC Discovery Signals Measurement Timing Configuration
  • the MulteFire cell sends the CRS only in the DRS subframe or other subframes that are transmitted by the Physical Downlink Shared Channel (PDSCH). Therefore, the user equipment can only use the MuLTE-Fire serving cell or the MuLTE-Fire neighboring cell in the DMTC window. Channel measurements are made for cell selection, cell reselection or handover.
  • the base station may separately send the DMTC information of the serving cell, the intra-frequency neighboring cell, and the inter-frequency neighboring cell to the user equipment.
  • the user equipment in the MuLTE-Fire cell meets the handover condition, if the user equipment monitors that the channel is occupied according to the LBT mechanism, the user equipment cannot send the measurement report to the base station, and the base station to which the MuLTE-Fire cell belongs receives the user. After the measurement report of the device, if the channel is occupied according to the LBT mechanism, the base station will not be able to send a handover command to the user equipment, resulting in excessive handover delay. Therefore, an automatic switching scheme of a user equipment is supported in the existing MuLTE-Fire system.
  • the measurement report is sent to the base station and started.
  • the automatic switching timer after receiving the measurement report, the base station initiates handover preparation to the target cell, and after the handover preparation is completed, the base station sends a handover instruction to the user equipment. If the user equipment acquires the handover command sent by the base station before the automatic handover timer expires, the user equipment switches to the target cell indicated by the handover instruction according to the handover instruction; otherwise, if the automatic handover timer expires and the user equipment does not receive the handover instruction, Then, the user equipment independently selects the target cell and initiates a handover request to the autonomously selected target cell.
  • the user equipment reports the measurement report of the automatic handover, starts the automatic handover timer, and waits for the acquisition of the handover instruction, and the base station initiates the handover preparation when receiving the measurement report of the automatic handover.
  • Both the user equipment and the base station need to know the measurement configuration of the automatic handover, that is, know when to start automatic handover.
  • the base station cannot make the user equipment know which one is the measurement configuration for the automatic handover, so that the user equipment cannot perform automatic handover. Therefore, there is a need for a method for the base station and the user equipment to know the measurement configuration of the automatic handover so that the user equipment can perform automatic handover.
  • the embodiment of the present application provides an automatic handover method, a system, a base station, and a user equipment, which are used to solve the problem that the user equipment cannot perform automatic handover in the prior art.
  • the embodiment of the present application provides an automatic handover method, which is applied to a system including a base station and a user equipment;
  • the base station generates a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier;
  • the user equipment acquires the measurement configuration message
  • the user equipment uses the measurement configuration for the automatic handover identifier as the measurement configuration of the automatic handover, and when the measurement result of the measurement object corresponding to the automatically switched measurement configuration satisfies the measurement report condition corresponding to the automatically switched measurement configuration, The user equipment is switched to the target cell.
  • the user equipment switches to the target cell, including:
  • the user equipment starts an automatic handover timer and sends a measurement report for automatic handover to the base station;
  • the user equipment selects the target cell and switches to the target cell; or if the automatic handover Before the timer expires, the user equipment acquires a handover command sent by the base station, and the user equipment switches to the target cell indicated by the handover instruction.
  • the user equipment switches to the target cell, including:
  • the user equipment determines to perform handover, and sends a measurement report for automatic handover to the base station;
  • the base station sends a handover preparation request to the target base station according to the measurement report for the automatic handover sent by the user equipment, and acquires a response message of the handover preparation request sent by the target base station;
  • the user equipment selects the target cell and switches to the target cell.
  • the automatic switching identifier is included in one or more of the measurement configurations; and/or,
  • the automatic switching identifier is included in one or more of the measurement objects; and/or,
  • the automatic switching indicator is included in one or more of the measurement report conditions.
  • the user equipment uses the measurement configuration for the automatic handover identifier as a measurement configuration for automatic handover, including:
  • the user equipment uses the measurement configuration as a measurement configuration for automatic handover; and/or,
  • the user equipment uses all measurement configurations corresponding to the measurement object as a measurement configuration for automatic switching; and/or,
  • the user equipment uses all measurement configurations corresponding to the measurement report condition as the measurement configuration of the automatic handover.
  • the method when the measurement result of the measurement object corresponding to the measurement configuration meets the measurement report condition corresponding to the measurement configuration, before the user equipment switches to the target cell, the method further includes:
  • the user equipment determines, according to the measurement configuration message, a measurement object corresponding to the automatically switched measurement configuration, and performs measurement on the measurement object to obtain a measurement result.
  • the user equipment selects a target cell, including:
  • the user equipment selects the target cell according to a measurement result of the measurement object for the measurement configuration of the automatic handover when the automatic handover timer is started;
  • the user equipment selects the target cell according to a measurement result of the first designated cell within a first specified duration before the automatic handover timer expires;
  • the user equipment selects the target cell according to a measurement result of the first designated cell within a second specified duration after the automatic handover timer expires;
  • the first designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the user equipment selects a target cell, including: the user equipment selects the target cell according to a measurement result of the second designated cell;
  • the second designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the method further includes: acquiring, by the user equipment, the cell list sent by the base station;
  • the user equipment selects a target cell, and the user equipment selects a cell as the target cell from the cell list according to a measurement result of a cell in the cell list.
  • the embodiment of the present application further provides an automatic handover method, which is implemented on a base station, and includes:
  • the measurement configuration message including at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier
  • the method further includes:
  • the method further includes:
  • the automatic switching identifier is included in one or more of the measurement configurations; and/or,
  • the automatic switching identifier is included in one or more of the measurement objects; and/or,
  • the automatic switching indicator is included in one or more of the measurement report conditions.
  • the method further includes:
  • the embodiment of the present application further provides an automatic handover method, which is applied to a system including a user equipment and a base station;
  • the base station Generating, by the base station, a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, and at least one measurement report condition;
  • the user equipment switches to a target cell.
  • the method further includes:
  • the user equipment When the measurement result of the measurement object corresponding to the automatically switched measurement configuration meets the measurement report condition corresponding to the automatically switched measurement configuration, the user equipment starts an automatic switching timer;
  • the base station After obtaining the measurement report carrying the automatic handover command, the base station determines to switch the user equipment, and sends a handover preparation request to the target base station according to the measurement report; when the base station acquires the response returned by the target base station a message, the base station sends a handover instruction to the user equipment;
  • the switching to the target cell includes:
  • the user equipment selects the target cell and switches to the target cell; or Before the automatic switching timer expires, if the user equipment acquires the handover instruction sent by the base station, the user equipment switches to the target cell indicated by the handover instruction.
  • the method further includes:
  • the base station After acquiring the measurement report carrying the automatic handover instruction, the base station sends a handover preparation request to the target base station according to the measurement report, and acquires a response message returned by the target base station;
  • the switching to the target cell includes:
  • the user equipment selects the target cell and switches to the target cell.
  • the method further includes: the user equipment determines a measurement object corresponding to the automatically switched measurement configuration, and performs measurement on the measurement object to obtain a measurement result.
  • the measurement configuration message further includes indication information indicating a measurement configuration for automatic switching selected by the user equipment; determining one or more measurements in the at least one measurement configuration Configure the measurement configuration as an automatic switch, including:
  • the user equipment selects one or more measurement configurations as the measurement configuration of the automatic handover in the measurement configuration indicated by the indication information according to the indication information in the measurement configuration message.
  • determining one or more measurement configurations in the at least one measurement configuration as the measurement configuration of the automatic handover includes:
  • One or more measurement report conditions are selected in the at least one measurement report condition, and the measurement configuration corresponding to the selected one or more measurement report conditions is used as the measurement configuration of the automatic handover.
  • the user equipment selects a target cell, including:
  • the user equipment selects the target cell according to a measurement result of the measurement object for the measurement configuration of the automatic handover when the automatic handover timer is started;
  • the user equipment selects the target cell according to a measurement result of the first designated cell within a first specified duration before the automatic handover timer expires;
  • the user equipment selects the target cell according to a measurement result of the first designated cell within a second specified duration after the automatic handover timer expires;
  • the first designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the user equipment selects a target cell, including: the user equipment selects the target cell according to a measurement result of the second designated cell; and the second designated cell is any neighboring cell or The cell included in the measurement object corresponding to the measurement configuration of the automatic handover is described.
  • the method further includes:
  • the user equipment selects a target cell, including:
  • the user equipment selects a cell as the target cell from the cell list according to a measurement result of a cell in the cell list.
  • the embodiment of the present application further provides an automatic handover method, which is implemented on a base station, and includes:
  • the measurement configuration message including at least one measurement configuration, at least one measurement object, and at least one measurement report condition;
  • the measurement configuration message Sending the measurement configuration message to the user equipment, so that the user equipment determines one or more measurement configurations in the at least one measurement configuration as a measurement configuration of an automatic handover, and corresponds to a measurement configuration of the automatic handover
  • the measurement report for the automatic handover is sent to the base station, where the measurement report carries an automatic handover instruction and is switched to the target cell.
  • the method further includes:
  • the method further includes:
  • the measurement configuration message further includes indication information, where the indication information is used by the user equipment to select one or more measurement configurations as automatic switching in a measurement configuration indicated by the indication information. Measurement configuration.
  • the method further includes:
  • the embodiment of the present application further provides an automatic switching method, which is implemented on a user equipment, and includes:
  • an automatic handover instruction is transmitted to the base station, and is selected and switched to the target cell.
  • selecting a target cell includes:
  • the second designated cell is an arbitrary neighboring cell or a cell included in the measurement object for automatic handover.
  • the method further includes:
  • the selecting a target cell includes: selecting a cell as the target cell from the cell list according to a measurement result of a cell in the cell list.
  • the embodiment of the present application further provides an automatic switching system, including a base station and a user equipment:
  • the base station is configured to generate a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier;
  • the base station is further configured to send the measurement configuration message to the user equipment
  • the user equipment is configured to acquire the measurement configuration message
  • the user equipment is further configured to use the measurement configuration for the automatic handover identifier as a measurement configuration of the automatic handover, and the measurement result corresponding to the measurement object corresponding to the automatically switched measurement configuration meets the measurement report corresponding to the automatically switched measurement configuration. When the condition is met, switch to the target cell.
  • the user equipment when the measurement result of the measurement object corresponding to the automatically switched measurement configuration meets the measurement report condition corresponding to the automatically switched measurement configuration, the user equipment is further configured to start an automatic switching timer and The base station sends a measurement report for automatic handover;
  • the base station is further configured to determine to switch the user equipment according to the measurement report for automatic handover sent by the user equipment, and send a handover preparation request to the target base station, and acquire, by the base station, the target base station. Sending a handover instruction to the user equipment when the response message of the handover preparation request is sent;
  • the user equipment is further configured to select the target cell and switch to the target cell; or Before the automatic handover timer expires, the user equipment is further configured to switch to the target cell indicated by the handover instruction when acquiring the handover instruction sent by the base station.
  • the user equipment is further configured to determine to perform handover, and send a measurement report for automatic handover to the base station.
  • the base station is further configured to: send, according to the measurement report for the automatic handover, the handover preparation request to the target base station, and acquire a response message of the handover preparation request sent by the target base station;
  • the user equipment is further configured to select the target cell and switch to the target cell.
  • the automatic switching identifier is included in one or more of the measurement configurations; and/or,
  • the automatic switching identifier is included in one or more of the measurement objects; and/or,
  • the automatic switching indicator is included in one or more of the measurement report conditions.
  • the user equipment is further configured to determine, according to the measurement configuration message, a measurement object corresponding to the automatically switched measurement configuration, and perform measurement on the measurement object to obtain a measurement result.
  • the user equipment is specifically configured to:
  • the first designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the user equipment is specifically configured to: select the target cell according to a measurement result of the second designated cell; and the second designated cell is an arbitrary neighboring cell or a measurement configuration of an automatic handover.
  • the cell included in the corresponding measurement object is specifically configured to: select the target cell according to a measurement result of the second designated cell; and the second designated cell is an arbitrary neighboring cell or a measurement configuration of an automatic handover. The cell included in the corresponding measurement object.
  • the user equipment is specifically configured to:
  • the embodiment of the present application further provides a base station, including:
  • a generating unit configured to generate a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier;
  • a sending unit configured to send the measurement configuration message to the user equipment, to facilitate the user equipment to acquire the measurement configuration message, and use the measurement configuration for the automatic handover identifier as a measurement configuration for automatic handover.
  • the measurement result of the measurement object corresponding to the automatic switching measurement configuration is switched to the target cell when the measurement report condition corresponding to the measurement configuration of the automatic switching is satisfied.
  • the method further includes:
  • An obtaining unit configured to acquire the measurement report for automatic handover sent by the user equipment
  • the sending unit is further configured to: send a handover preparation request to the target base station according to the measurement report for automatic handover; and send a handover instruction to the user equipment when acquiring a response message of the handover preparation request sent by the target base station .
  • the automatic switching identifier is included in one or more of the measurement configurations; and/or,
  • the automatic switching identifier is included in one or more of the measurement objects; and/or,
  • the automatic switching indicator is included in one or more of the measurement report conditions.
  • the embodiment of the present application further provides an automatic switching system, including a user equipment and a base station:
  • the base station is configured to generate a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, and at least one measurement report condition;
  • the base station is further configured to send the measurement configuration message to the user equipment
  • the user equipment is further configured to determine, in the at least one measurement configuration, one or more measurement configurations as a measurement configuration of the automatic handover, and when the measurement result of the measurement object corresponding to the automatically switched measurement configuration meets the measurement of the automatic handover
  • a measurement report for automatic handover is sent to the base station, where the measurement report carries an automatic handover instruction and is switched to the target cell.
  • the user equipment is further configured to start an automatic switching timer when the measurement result of the measurement object corresponding to the automatically switched measurement configuration meets the measurement report condition corresponding to the automatically switched measurement configuration;
  • the base station is further configured to: after acquiring the measurement report that carries the automatic handover instruction, determine to switch the user equipment, and send a handover preparation request to the target base station according to the measurement report; when the base station acquires the target a response message returned by the base station, where the base station sends a handover instruction to the user equipment;
  • the user equipment is specifically configured to:
  • the automatic handover timer expires and the user equipment does not acquire the handover instruction sent by the base station according to the measurement report, select the target cell and switch to the target cell; or, when the automatic Before the handover timer expires, if the user equipment acquires the handover instruction sent by the base station, it switches to the target cell indicated by the handover instruction.
  • the base station is further configured to: after acquiring the measurement report that carries the automatic handover instruction, send a handover preparation request to the target base station according to the measurement report, and acquire a response message returned by the target base station;
  • the user equipment is specifically configured to: select the target cell, and switch to the target cell.
  • the user equipment is further configured to determine a measurement object corresponding to the automatically switched measurement configuration, and measure the measurement object to obtain a measurement result.
  • the measurement configuration message further includes indication information for indicating a measurement configuration that is selected by the user equipment as an automatic handover;
  • the user equipment is specifically configured to:
  • the user equipment is specifically configured to:
  • One or more measurement report conditions are selected in the at least one measurement report condition, and the measurement configuration corresponding to the selected one or more measurement report conditions is used as the measurement configuration of the automatic handover.
  • the user equipment is specifically configured to:
  • the first designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the user equipment is specifically configured to:
  • the user equipment is specifically configured to:
  • the embodiment of the present application further provides a base station, including:
  • a generating unit configured to generate a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, and at least one measurement report condition;
  • a sending unit configured to send the measurement configuration message to the user equipment, so that the user equipment determines one or more measurement configurations in the at least one measurement configuration as a measurement configuration of an automatic handover, and automatically switches
  • the measurement report for the automatic handover is sent to the base station, where the measurement report carries an automatic handover instruction and is switched to the target cell.
  • the sending unit is further configured to send a handover preparation request to the target base station according to the measurement report that is sent by the terminal and that carries the automatic handover instruction.
  • the method further includes: an obtaining unit, configured to acquire a response message returned by the target base station.
  • the sending unit is further configured to send a handover preparation request to the target base station according to the measurement report that is sent by the terminal and that carries the automatic handover instruction, and send a handover instruction to the user equipment if the response message returned by the target base station is obtained. .
  • the measurement configuration message further includes indication information, where the indication information is used by the user equipment to select one or more measurement configurations as automatic switching in a measurement configuration indicated by the indication information. Measurement configuration.
  • the embodiment of the present application further provides a user equipment, including:
  • An obtaining unit for determining a measurement object for automatic switching and a condition for automatic switching An obtaining unit for determining a measurement object for automatic switching and a condition for automatic switching
  • a sending unit configured to send an automatic switching instruction to the base station when the measurement result of the measurement object for automatic switching satisfies the switching condition of the automatic switching
  • the processing unit is configured to select and switch to the target cell when the measurement result of the measurement object corresponding to the automatically switched measurement configuration meets the measurement report condition corresponding to the automatically switched measurement configuration.
  • the processing unit is specifically configured to:
  • the second designated cell is an arbitrary neighboring cell or a cell included in the measurement object for automatic handover.
  • the method further includes:
  • An acquiring unit configured to acquire the cell list sent by the base station
  • the processing unit is specifically configured to: select, according to the measurement result of the cell in the cell list, a cell as the target cell from the cell list.
  • the measurement configuration message when the base station sends the measurement configuration message to the user equipment, the measurement configuration message carries the automatic handover identifier, and the user equipment can determine the measurement configuration of the automatic handover, so that the base station and the user equipment can learn the measurement of the automatic handover.
  • Configuration so as to know when to perform automatic switching, thereby enabling an automatic switching scheme when the LBT mechanism is used in the MuLTE-Fire system, and the user equipment can perform automatic switching.
  • the automatic switching scheme can be implemented, it is possible to solve the problem that the user equipment switching failure rate is high due to the high channel occupancy rate of the target cell when the user equipment uses the LBT mechanism in the MuLTE-Fire system, so that the user waves ⁇
  • the target cell with a lower channel occupancy rate can be selected to complete the handover, which reduces the handover delay of the user equipment, and reduces the probability of handover failure to a certain extent.
  • FIG. 1 is a schematic flowchart of an automatic switching method provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for a user equipment to be handed over to a target cell according to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of another method for a user equipment to handover to a target cell according to an embodiment of the present application
  • FIG. 4 is a schematic flowchart of a specific implementation manner of an automatic switching method provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another specific implementation manner of an automatic switching method provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a base station side in an automatic handover method provided by an embodiment of the present solution
  • FIG. 7 is another schematic flowchart of an automatic switching method provided by an embodiment of the present application.
  • FIG. 8 is a schematic flowchart diagram of an implementation method of step 703 provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart diagram of another implementation method of step 703 provided by an embodiment of the present application.
  • FIG. 10 is a schematic flowchart diagram of another specific implementation manner of an automatic switching method according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic flowchart diagram of another specific implementation manner of an automatic switching method according to an embodiment of the present disclosure.
  • FIG. 12 is another schematic flowchart of a base station side in an automatic handover method provided by an embodiment of the present disclosure
  • FIG. 13 is another schematic flowchart of an automatic switching method provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of an automatic switching system according to an embodiment of the present application.
  • FIG. 15 is a functional block diagram of a base station according to an embodiment of the present application.
  • 16 is another functional block diagram of a base station provided by an embodiment of the present application.
  • FIG. 17 is a functional block diagram of a user equipment according to an embodiment of the present application.
  • first, second, etc. may be used to describe the specified duration in the embodiments of the present application, these specified durations should not be limited to these terms. These terms are only used to distinguish the specified durations from each other.
  • first specified duration may also be referred to as a specified duration if not departing from the scope of the embodiments of the present application.
  • second specified duration may also be referred to as a first specified duration.
  • the word “if” as used herein may be interpreted as “when” or “when” or “in response to determining” or “in response to detecting.”
  • the phrase “if determined” or “if detected (conditions or events stated)” may be interpreted as “when determined” or “in response to determination” or “when detected (stated condition or event) “Time” or “in response to a test (condition or event stated)”.
  • the user equipment reports the measurement report of the automatic handover, starts the automatic handover timer, and waits for the acquisition of the handover instruction, and the base station receives
  • the measurement report is automatically switched, the handover preparation is initiated. Therefore, both the user equipment and the base station need to know the measurement configuration of the automatic handover.
  • the base station learns the measurement configuration of the automatic handover, the user equipment cannot know which one is for automatic handover.
  • the base station cannot know which one is the measurement configuration for the automatic handover, thereby causing the user equipment to fail to perform automatic handover.
  • the solution of the solution provides two feasible solutions.
  • the base station selects the measurement configuration of the automatic handover, and indicates the measurement configuration of the automatic handover to the user equipment by using the measurement configuration message.
  • the second method is that the user equipment automatically selects the measurement configuration of the automatic handover, and then indicates the measurement configuration of the automatic handover to the base station after automatically switching the instruction.
  • Both of these methods can make the user equipment and the base station know which measurement configuration is the measurement configuration of the automatic handover, so that it can be known when the automatic handover is performed, so that the automatic handover scheme of the user equipment can be successfully completed.
  • the embodiments of the present application can be applied to a system including a base station and a user equipment.
  • the base station and user equipment can adopt the above-mentioned MuLTE-Fire technology.
  • FIG. 1 is a schematic flowchart of an automatic switching method according to an embodiment of the present application. As shown in FIG. 1 , the method includes:
  • the base station generates a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier.
  • the base station sends a measurement configuration message to the user equipment.
  • the user equipment acquires a measurement configuration message.
  • the user equipment automatically adjusts the measurement configuration for the identifier as the measurement configuration of the automatic handover, and when the measurement result of the measurement object corresponding to the automatically switched measurement configuration meets the measurement report condition corresponding to the automatically switched measurement configuration, the user equipment switches. To the target cell.
  • the user equipment involved in the embodiment of the present application is a device capable of transmitting and acquiring wireless signals, and may include, but is not limited to, a mobile phone, a personal digital assistant (PDA), a wireless modem, a wireless handheld device, Tablet, laptop, cordless phone, wireless local loop station, Customer Premise Equipment (CPE) or portable broadband wireless device (Mobile Wi-Fi, Mi-Fi) capable of converting mobile signals into wireless signals , smart home appliances, etc.
  • PDA personal digital assistant
  • CPE Customer Premise Equipment
  • portable broadband wireless device Mobile Wi-Fi, Mi-Fi
  • step 101 and step 102 the embodiment of the present application provides a feasible implementation manner.
  • the measurement configuration message generated by the base station and sent to the user equipment includes: at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier.
  • Each measurement configuration includes a measurement identity (Measurement Identity), a measurement object identifier, and a measurement report condition identifier, that is, a measurement configuration can correspond to one measurement object and one measurement report condition, which is equivalent to the measurement configuration. Used to save the correspondence between measurement configuration, measurement object and measurement report conditions.
  • Measurement Identity Measurement Identity
  • measurement object identifier a measurement object identifier
  • measurement report condition identifier a measurement report condition identifier
  • Each measurement object is used to indicate a target that the user equipment needs to measure, and may include a target frequency point or a target cell.
  • Each measurement report condition is used to indicate a condition for the user equipment to report the measurement report, wherein one measurement report condition may include a type of measurement event, a signal quality requirement of the measurement event, and a transmission period and a number of transmission times of the measurement report.
  • one measurement object may correspond to one or more measurement configurations, and one measurement object may correspond to one or more measurement report conditions.
  • a measurement report condition may correspond to one or more measurement objects, and one measurement report condition may correspond to one or more measurement configurations.
  • the measurement configuration message sent by the base station to the user equipment further includes an automatic handover identifier, where the automatic handover identifier is used to indicate to the user equipment which measurement configuration is the measurement configuration of the automatic handover.
  • the measurement configuration message sent by the base station to the user equipment carrying the automatic handover identifier may have the following three feasible implementation solutions:
  • An automatic switching indicator is included in one or more measurement configurations.
  • the measurement configuration message may include a field for storing one or more measurement configurations
  • the automatic switching identifier may be carried by using a field for storing one or more measurement configurations, if one is used for storage
  • the field of the measurement configuration includes an automatic switching identifier, indicating that the measurement configuration stored in the field is a measurement configuration that is automatically switched.
  • a measurement configuration for automatic switching is stored using a dedicated field that is separate from the traditional measurement configuration field.
  • the automatic handover identifier may be implemented by using an implicit identifier. For example, if the field for storing the measurement configuration includes an automatic handover timer, the measurement configuration stored in the field is a measurement configuration that is automatically switched. .
  • One or more measurement objects contain an automatic switching identifier.
  • the measurement configuration message may include a field for storing one or more measurement objects
  • the automatic switching identifier may be carried by using a field for storing one or more measurement objects, if one is used for storage.
  • the automatic switching identifier is included in the field of the measurement object, indicating that the measurement object stored in the field is an automatically switched measurement object, so that the automatic switching identifier can indicate that all measurement configurations corresponding to the measurement object stored in the field are automatically switched. Measurement configuration.
  • the automatic handover identifier may be implemented by using an implicit identifier. For example, if the field for storing the measurement object includes an automatic switching timer, the measurement object stored in the field is an automatically switched measurement object. . As another example, a measurement configuration for automatic switching is stored using a dedicated field that is separate from the traditional measurement object field.
  • One or more measurement report conditions include an automatic switching identifier.
  • the measurement configuration message may include a field for storing one or more measurement report conditions
  • the automatic switching identifier may be carried by using a field for storing one or more measurement report conditions, if one uses
  • the automatic switching identifier is included in the field for storing the measurement report condition, indicating that the measurement report condition stored in the field is a measurement report condition for automatic switching, so that the automatic switching identifier may indicate all the measurement report conditions stored in the field.
  • the measurement configuration is a measurement configuration that is automatically switched.
  • the automatic handover identifier can be implemented by using an implicit identifier. For example, if the field for storing the measurement report condition includes an automatic switching timer or includes an enable automatic switching timer flag, it indicates that the measurement report condition stored in the field is an automatically switched measurement object. Or, for example, if the field for storing the measurement report condition includes an automatic handover-specific measurement event, the identifier is identified to include an automatic handover identifier, thereby indicating that the measurement report condition stored in the field is an automatically switched measurement object, such as
  • the automatic switching dedicated measurement event can be a newly set A7 event dedicated to automatic switching. Or, for example, the measurement configuration for automatic handover is stored using a dedicated field that is separate from the traditional measurement report condition field.
  • step 104 the embodiment of the present application provides a feasible implementation manner herein.
  • the user equipment will automatically switch the measurement configuration for the identity as the measurement configuration for automatic handover.
  • the user equipment uses the measurement configuration as a measurement configuration for automatic handover.
  • the second type if the measurement object in the measurement configuration message includes the automatic switching identifier, the user equipment uses all the measurement configurations corresponding to the measurement object as the measurement configuration of the automatic switching.
  • the user equipment uses all measurement configurations corresponding to the measurement report condition as the measurement configuration of the automatic handover.
  • the user equipment is switched to the target cell when the measurement result of the measurement object corresponding to the measurement configuration of the automatic handover meets the measurement report condition corresponding to the measurement configuration of the automatic handover in step 104.
  • the first feasible implementation solution is applied to the hybrid automatic switching scenario, that is, the user equipment needs to send a measurement report to the base station and start an automatic switching timer.
  • the second feasible implementation solution is applied to the completely automatic switching scenario, that is, the user equipment can The measurement report is sent to the base station, but the automatic switching timer is not started to receive the handover command.
  • FIG. 2 is a schematic flowchart of a method for a user equipment to switch to a target cell according to an embodiment of the present disclosure. As shown in FIG. 2 , the method includes:
  • the user equipment determines, according to the measurement configuration message, a measurement object corresponding to the measurement configuration that is automatically switched, and performs measurement on the measurement object to obtain a measurement result.
  • the user equipment starts an automatic handover timer and sends a measurement report for automatic handover to the base station.
  • the measurement configuration message carries the foregoing measurement configuration, the measurement object, and the measurement report condition, and the user equipment may perform the measurement on the target that needs to be measured, that is, the automatic handover according to the measurement object carried in the measurement configuration message.
  • the cell or frequency point included in the measurement object corresponding to the configuration is configured for measurement.
  • the user equipment needs to start the automatic measurement in addition to the measurement report for the automatic switching. Switch the timer.
  • the user equipment starts the automatic handover timer and sends a measurement report for the automatic handover to the base station.
  • the first type if the field used to store the measurement configuration in the measurement configuration message obtained by the user equipment includes the automatic handover identifier, the user equipment determines that the measurement configuration stored in the field for storing the measurement configuration is a measurement configuration that is automatically switched.
  • the user equipment starts an automatic handover timer, and sends a measurement report message to the base station, where the measurement report message is sent. Carrying a measurement report containing an identification of the measurement configuration that is automatically switched.
  • the field for storing the measurement configuration 0 includes an automatic switching identifier, and the measurement configuration 0 corresponds to the measurement report condition 3 and the measurement object 1. If the measurement result of the user equipment to the measurement object 1 satisfies the measurement report condition 3, the user equipment starts automatically. The timer is switched, and a measurement report message carrying the measurement report of the measurement object 1 is transmitted to the base station, and the measurement report carries the identifier of the measurement configuration 0.
  • the second type if the field for storing the measurement object in the measurement configuration message acquired by the user equipment includes the automatic switching identifier, the user equipment determines that the measurement object stored in the field for storing the measurement object is an automatically switched measurement object, All measurement configurations corresponding to the measurement object are automatically switched measurement configurations.
  • the user equipment starts the automatic switching timer, and The base station sends a measurement report message, where the measurement report message carries a measurement report, where the measurement report includes an identifier of a measurement configuration corresponding to the automatically switched measurement object.
  • one measurement object may correspond to one or more measurement report conditions, and when the measurement result of the measurement object satisfies the measurement report condition corresponding to the measurement object, the measurement report message corresponding to the measurement report condition is sent to the base station. For the measurement report condition that the measurement result of the measurement object is not satisfied, the user equipment does not send a measurement report message corresponding to the measurement report condition to the base station.
  • one measurement object may correspond to one or more measurement configurations, and thus the measurement report carried in the measurement report message includes an identifier of the measurement configuration corresponding to the measurement report condition corresponding to the measurement object.
  • the field for storing the measurement object 3 includes an automatic switching identifier
  • the measurement object 3 corresponds to the measurement report condition 1 and the measurement configuration 0
  • the measurement object 3 also corresponds to the measurement report condition 2 and the measurement configuration 1. If the measurement result of the user equipment to the measurement object 3 satisfies the measurement report condition 1 and does not satisfy the measurement report condition 2, the user equipment starts an automatic handover timer, and transmits a measurement report message carrying the measurement report of the measurement object 3 to the base station, the measurement The content of the report is only the identity of the measurement configuration 0.
  • the user equipment starts an automatic handover timer, and sends a measurement report message carrying the measurement report of the measurement object 3 to the base station, where
  • the measurement report contains the identification of the measurement configuration 0 and the identification of the measurement configuration 1.
  • the user equipment determines that the measurement report condition stored in the field for storing the measurement report condition is an automatic handover measurement. Reporting conditions, all measurement configurations corresponding to the measurement report conditions are automatically switched measurement configurations, and the measurement results obtained by the user equipment after measuring one or more measurement objects corresponding to the automatically switched measurement report conditions satisfy the measurement report.
  • the user equipment starts an automatic switching timer, and sends a measurement report message to the base station, where the measurement report message carries a measurement report, where the measurement report includes an identifier of one or more measurement configurations corresponding to the measurement report condition.
  • one measurement report condition may correspond to one or more measurement objects, and when the measurement result of the measurement object corresponding to a measurement report condition satisfies the measurement report condition, the measurement corresponding to the measurement report condition is sent to the base station. Report a message. For the measurement report condition that the measurement result of the measurement object is not satisfied, the user equipment does not send a measurement report message corresponding to the measurement report condition to the base station.
  • one measurement object may correspond to one or more measurement configurations, and thus the content of the measurement report carried in the measurement report message is an identification of the measurement configuration corresponding to the satisfied measurement report condition when the measurement report condition is satisfied.
  • the field for storing the measurement report condition 3 includes an automatic switching identifier
  • the measurement report condition 3 corresponds to the measurement object 1 and the measurement configuration 0
  • the measurement report condition 3 also corresponds to the measurement object 2 and the measurement configuration 1. If the measurement result of the measurement object 1 of the user equipment satisfies the measurement report condition 3, and the measurement result of the measurement object 2 does not satisfy the measurement report condition 3, the user equipment starts an automatic handover timer, and sends a measurement report carrying the measurement object 0 to the base station.
  • the measurement report message the content of the measurement report only measures the identity of configuration 0.
  • the user equipment starts an automatic handover timer, and transmits a measurement carrying the measurement report to the base station.
  • a report message containing the identity of the measurement configuration 0 and the identity of the measurement configuration 1.
  • the field includes an automatic handover identifier
  • the field used to store the measurement object in the measurement configuration message also includes an automatic handover identifier
  • the user determines the measurement report.
  • the condition and the measurement configuration corresponding to the measurement object are measurement configurations that are automatically switched.
  • the user equipment starts an automatic handover timer, and sends a measurement report message to the base station, where the measurement report message carries a measurement report, where the measurement report includes the measurement report condition And an identifier of the measurement configuration corresponding to the measurement object.
  • the base station determines to switch the user equipment according to the measurement report for automatic handover sent by the user equipment, and sends a handover preparation request to the target base station.
  • the base station acquires the measurement report message sent by the user equipment, and if the measurement report message carries the measurement report for the automatic handover, the base station determines that the user equipment needs to be switched, and therefore needs to initiate handover preparation, and may send handover preparation to the target base station. request.
  • the base station may determine to switch the target cell of the user equipment according to the cell identifier carried in the measurement report for the automatic handover, and then send a handover preparation request to the target base station where the target cell is located.
  • the handover preparation request sent by the base station to the target base station may carry the context information of the user equipment.
  • the base station may send a handover preparation request to the target base station through the X2 interface or the S1 interface.
  • the base station determines whether the measurement report message sent by the user equipment carries the measurement report for automatic handover, and has the following feasible implementation solutions.
  • the first type in the case where the field for storing the measurement configuration in the measurement configuration message includes the automatic handover identifier, if the measurement configuration corresponding to the identifier of the measurement configuration carried in the measurement report message acquired by the base station belongs to the automatic handover identifier
  • the measurement configuration is stored in the field, and the base station determines that the measurement report of the measurement configuration in the measurement report message is a measurement report for automatic handover.
  • the second type in the case that the field for storing the measurement object in the measurement configuration message includes the automatic handover identifier, if the measurement object corresponding to the identifier of the measurement configuration carried in the measurement report message acquired by the base station belongs to the automatic handover identifier The measurement object is stored in the field, and the base station determines that the measurement report of the measurement configuration in the measurement report message is a measurement report for automatic handover.
  • the measurement report message includes an identifier of the measurement configuration 0, and the identifier of the measurement configuration 0 corresponds to the measurement object 1 and the measurement report condition 3. If the field for storing the measurement object 1 in the measurement configuration message includes an automatic switching identifier, The measurement report for this measurement configuration 0 is a measurement report for automatic switching.
  • the third type in the case where the field for storing the measurement report condition in the measurement configuration message includes the automatic handover identifier, if the measurement report condition corresponding to the identifier of the measurement configuration carried in the measurement report message acquired by the base station belongs to the automatic The measurement report condition stored in the field of the handover identifier is determined, and the base station determines that the measurement report of the measurement configuration in the measurement report message is a measurement report for automatic handover.
  • the measurement report message includes an identifier of the measurement configuration 0, where the identifier of the measurement configuration 0 corresponds to the measurement object 1 and the measurement report condition 3. If the field for storing the measurement report condition 3 in the measurement configuration message includes the automatic switching identifier, The measurement report indicating this measurement configuration 0 is a measurement report for automatic switching.
  • the fourth type, in the measurement configuration message, the field for storing the measurement report condition includes the automatic handover identifier and the field for storing the measurement object, where the field includes the automatic handover identifier, and the measurement configuration carried in the measurement report message received by the base station
  • the measurement report condition corresponding to the identifier belongs to the measurement report condition stored in the field including the automatic handover identifier
  • the corresponding measurement object belongs to the measurement object stored in the field including the automatic handover identifier
  • the base station determines the measurement in the measurement report message.
  • the configured measurement report is a measurement report for automatic switching.
  • the measurement report message includes an identifier of the measurement configuration 0, and the identifier of the measurement configuration 0 corresponds to the measurement object 1 and the measurement report condition 3. If the measurement configuration message is used in the field for storing the measurement report condition 3, the automatic switching identifier is included and used. The automatic switching identifier is included in the field of the storage measurement object 1, indicating that the measurement report of the measurement configuration 0 is a measurement report for automatic switching.
  • the base station may further send the cell list or the base station list to the user equipment.
  • the cell list includes identifiers of one or more cells in each of the target base stations, and the base station list may include identifiers of the target base stations in the one or more target base stations.
  • the cell list or the base station list is used by the user equipment to preferentially select a target cell from the cells in the cell list when the target cell is selected, or to preferentially select the target cell from the cell under the base station in the base station list.
  • the base station acquires a response message of the handover preparation request sent by the target base station, send a handover instruction to the user equipment.
  • the target base station determines whether the user equipment is allowed to access according to the context information of the user equipment that is carried by the base station.
  • the target base station sends a response message of the handover preparation request to the base station, where the permission handover command is carried.
  • the base station can obtain the response message of the handover preparation request sent by the target base station, and send a handover instruction to the user equipment according to the allowed handover command carried by the base station, where the handover instruction is used to indicate the target cell that can be handed over.
  • the base station needs to send a handover command to the user equipment, it first monitors whether the channel is occupied. If the channel is occupied, the base station cannot send a handover command to the user equipment, which may cause the automatic handover timer to expire. The user equipment has not received the switch instruction. If the channel is idle, the base station can successfully send a handover command to the user equipment.
  • the target base station sends a response to the handover preparation request to the base station, where the handover request is carried, so that the base station can obtain the response message of the handover preparation request sent by the target base station, according to the The switch command is rejected and the switch instruction is not sent to the user equipment.
  • the user equipment selects the target cell and switches to the target cell.
  • the user equipment can start timing. If the automatic switching timer expires, the user equipment has not obtained the switching instruction sent by the base station, and the user equipment determines that the user equipment needs to perform the switching instruction. Automatic switching, so the user equipment can independently select the target cell to be handed over, and switch to the autonomously selected target cell after the selection is completed.
  • the user equipment may select the target cell as follows.
  • the first type the user equipment selects the target cell according to the measurement result of the measurement object for the measurement configuration of the automatic handover when the automatic handover timer is started.
  • the first designated cell is a cell included in the measurement object corresponding to the measurement configuration of any neighboring cell or automatic handover.
  • the user equipment may select the target cell in the first designated cell that starts the automatic handover timer and sends the measurement report of the automatic handover, that is, the measurement configuration that the measurement result meets the measurement report condition and the corresponding measurement configuration is automatically switched.
  • the target cell is selected in the first designated cell.
  • the user equipment selects the target cell according to the measurement result of the first designated cell within a first specified duration before the automatic handover timer expires.
  • the first designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the user equipment may select the target cell according to the measurement result of the first designated cell in the first specified duration T1 before the automatic handover timer expires.
  • the first specified duration T1 can be configured by the base station.
  • the third type is the measurement report condition stored by the user equipment in the field including the automatic handover identifier and the condition for storing the measurement report, and the measurement is performed on the cell in the corresponding measurement object, and when the measurement result satisfies the corresponding measurement report condition or other
  • the user equipment uses the cell as the target cell.
  • the fourth type is that the user equipment measures the cell included in the measurement object stored in the field that includes the automatic handover identifier and the measurement measurement object, and the measurement result satisfies the field that includes the automatic handover identifier and the condition for storing the measurement report. When the stored measurement report condition is met, the user equipment uses the cell as the target cell.
  • the user equipment selects the target cell according to the measurement result of the first designated cell within a second specified duration after the automatic handover timer expires.
  • the first designated cell is a cell included in the measurement object corresponding to the measurement configuration of the arbitrary neighboring cell or the automatic handover.
  • the user equipment may select the target cell according to the measurement result of the first designated cell in the second specified duration T2 after the automatic handover timer expires.
  • the second specified duration T2 can be configured by the base station.
  • the cell included in the measurement object corresponding to the measurement configuration of the automatic handover may include the following situations:
  • the first type is a measurement configuration stored by the user equipment for the field including the automatic handover identifier and the storage measurement configuration, corresponding to The cell in the measurement object performs measurement, and when the measurement result satisfies the corresponding measurement report condition or other specified conditions, the user equipment uses the cell as the target cell.
  • the second type is that the user equipment measures the cell in the measurement object stored in the field that includes the automatic handover identifier and the location for storing the measurement object, and when the measurement result satisfies the corresponding measurement report condition or other specified conditions, the user equipment will This cell serves as a target cell.
  • the third type is the measurement report condition stored by the user equipment in the field including the automatic handover identifier and the condition for storing the measurement report, and the measurement is performed on the cell in the corresponding measurement object, and when the measurement result satisfies the corresponding measurement report condition or other
  • the user equipment uses the cell as the target cell.
  • the fourth type is that the user equipment measures the cell included in the measurement object stored in the field that includes the automatic handover identifier and the measurement measurement object, and the measurement result satisfies the field that includes the automatic handover identifier and the condition for storing the measurement report. When the stored measurement report condition is met, the user equipment uses the cell as the target cell.
  • the user equipment selects a cell as a target cell from the cell list according to the measurement result of the cell in the cell list.
  • the cell list may be sent to the user equipment before the base station sends a handover preparation request to the target base station.
  • the user equipment can use the cell as the target cell as long as the signal quality of the cell exceeds a specified threshold.
  • the user equipment may use the cell as the target cell.
  • the cell configures the cell in the corresponding measurement object for the measurement of the automatic handover, and the measurement result of the cell meets the measurement report condition corresponding to the measurement configuration of the automatic handover, the user equipment may use the cell as the target cell.
  • the second implementation manner may also be preferentially used.
  • other implementation manners are adopted (the first type, the second type, the third type, or the fourth type). Method to realize).
  • the user equipment If the user equipment acquires the handover instruction sent by the base station before the automatic handover timer expires, the user equipment switches to the target cell indicated by the handover instruction.
  • the user equipment If the handover command sent by the base station is obtained by the user equipment before the automatic handover timer expires, the user equipment performs a traditional handover procedure, switches to the target cell indicated by the handover instruction, and stops the automatic handover timer.
  • the user equipment needs to send a measurement report to the base station and start an automatic switching timer.
  • the user equipment can select the automatic switching timer only when the automatic switching timer expires and the switching instruction sent by the base station is not received.
  • the target cell is switched to the target cell. If the user equipment receives the handover command sent by the base station before the automatic handover timer expires, the target cell cannot be selected autonomously and needs to be switched to the target cell indicated by the handover instruction by the base station, which is called hybrid automatic. Switch scenes.
  • FIG. 3 is a schematic flowchart of another method for a user equipment to switch to a target cell according to an embodiment of the present application. As shown in FIG. 3 , the method includes:
  • the user equipment determines, according to the measurement configuration message, a measurement object corresponding to the measurement configuration that is automatically switched, and performs measurement on the measurement object to obtain a measurement result.
  • step 301 For the specific implementation of the step 301, refer to the specific implementation of the foregoing step 201, and details are not described herein again.
  • the user equipment determines to perform handover, and sends a measurement report for automatic handover to the base station.
  • the base station sends a handover preparation request to the target base station according to the measurement report for the automatic handover sent by the user equipment, and acquires a response message of the handover preparation request sent by the target base station.
  • the user equipment selects the target cell and switches to the target cell.
  • the measurement configuration message carries the foregoing measurement configuration, the measurement object, and the measurement report condition
  • the user equipment can perform the measurement target, such as the target frequency point, according to the measurement object carried in the measurement configuration message. / or the target cell performs measurement, and according to the measurement configuration, determines the measurement report condition corresponding to the measurement object.
  • the measurement configuration is not the measurement configuration of the automatic handover, when the measurement result of the measurement object satisfies the measurement report condition corresponding to the measurement object, the user equipment needs to send a measurement report to the base station.
  • the user equipment needs to send a measurement report for automatic switching, but does not need to start automatic. Switch the timer.
  • step 202 For a specific implementation scheme of the user equipment to determine whether the measurement result of the measurement object corresponding to the measurement configuration of the automatic handover meets the measurement report condition corresponding to the measurement configuration of the automatic handover, refer to the description of step 202, and details are not described herein again.
  • the user equipment determines that automatic handover is required, and therefore, the user equipment directly selects the switch to be automatically selected.
  • the target cell does not need to start the automatic handover timer and wait for the base station to send a handover command.
  • the user equipment may select the target cell as follows.
  • the first type the user equipment selects the target cell according to the measurement result of the second designated cell.
  • the second designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the user equipment may select, in a cell in the automatically switched measurement object whose measurement result meets the corresponding measurement report condition, when determining that the measurement result of the automatically switched measurement object satisfies the corresponding measurement report condition Target cell.
  • the user equipment selects a cell as the target cell from the cell list according to a measurement result of a cell in the cell list.
  • the cell list may be sent to the user equipment by the base station while sending the measurement configuration message to the user equipment.
  • the user equipment can use the cell as the target cell as long as the signal quality of the cell exceeds a specified threshold.
  • the user equipment may use the cell as the target cell.
  • the cell configures the cell in the corresponding measurement object for the measurement of the automatic handover, and the measurement result of the cell meets the measurement report condition corresponding to the measurement configuration of the automatic handover, the user equipment may use the cell as the target cell.
  • the user equipment when the user equipment determines that the measurement result of the measurement object corresponding to the measurement configuration of the automatic handover meets the measurement report condition corresponding to the measurement configuration of the automatic handover, the user equipment only needs to send a measurement report to the base station, but The automatic switching timer is not started. Therefore, it is not necessary to wait until the automatic switching timer expires to select the target cell, but when it is determined that the measurement result of the measurement object corresponding to the automatically switched measurement configuration satisfies the measurement report condition corresponding to the automatically switched measurement configuration.
  • the target cell is directly selected autonomously, and then switched to the target cell, which is called a fully automatic switching scenario.
  • FIG. 4 is a schematic flowchart of a specific implementation manner of an automatic switching method according to an embodiment of the present application. The embodiment is applied to the hybrid automatic switching scenario. As shown in FIG. 4, the method includes:
  • the base station generates a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier.
  • the base station sends a measurement configuration message to the user equipment.
  • the user equipment uses the measurement configuration for the automatic handover identifier in the measurement configuration message as the measurement configuration of the automatic handover.
  • the user equipment determines, according to the measurement configuration message, a measurement object corresponding to the measurement configuration that is automatically switched, and performs measurement on the measurement object to obtain a measurement result.
  • the user equipment determines whether the measurement result of the measurement object corresponding to the measurement configuration of the automatic switching meets the measurement report condition corresponding to the measurement configuration of the automatic switching, and if yes, executes 406.
  • the user equipment starts an automatic handover timer and sends a measurement report for automatic handover to the base station, and then performs step 407 or performs step 409.
  • the base station determines, according to the measurement report for automatic handover sent by the user equipment, the handover user equipment, and sends a handover preparation request to the target base station.
  • step 408 When the base station acquires the response message of the handover preparation request sent by the target base station, determine whether the channel is occupied. If not, go to step 409. If yes, the switching instruction cannot be sent, and then step 411 is performed.
  • the base station sends a handover instruction to the user equipment.
  • the user equipment If the user equipment acquires a handover command sent by the base station before the automatic handover timer expires, the user equipment switches to the target cell indicated by the handover instruction.
  • the user equipment selects the target cell and switches to the target cell.
  • FIG. 5 is a schematic flowchart of another specific implementation manner of an automatic switching method according to an embodiment of the present application, the embodiment is applied to the above-mentioned fully automatic switching scenario. As shown in FIG. 5, the method includes:
  • the base station generates a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier.
  • the base station generates a cell list.
  • the base station sends a measurement configuration message and a cell list to the user equipment.
  • the user equipment uses the measurement configuration for the automatic handover identifier in the measurement configuration message as the measurement configuration of the automatic handover.
  • the user equipment determines, according to the measurement configuration message, a measurement object corresponding to the measurement configuration that is automatically switched, and performs measurement on the measurement object to obtain a measurement result.
  • the user equipment determines whether the measurement result of the measurement object corresponding to the measurement configuration of the automatic handover meets the measurement report condition corresponding to the measurement configuration of the automatic handover, and if yes, determines to perform handover, and sends a measurement report for the automatic handover to the base station, and then executes 507 and / or 508.
  • the base station sends a handover preparation request to the target base station according to the measurement report for the automatic handover sent by the user equipment, and acquires a response message of the handover preparation request sent by the target base station.
  • the user equipment selects a target cell.
  • the user equipment may select the target cell according to the obtained cell list.
  • the user equipment switches to the target cell.
  • the embodiment of the present application further provides a method flow for the base station side.
  • FIG. 6 is a schematic flowchart of the base station side in the automatic handover method provided by the embodiment, as shown in FIG. 6 .
  • Methods can include:
  • the measurement configuration message includes at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier.
  • the measurement configuration message when the base station sends the measurement configuration message to the user equipment, the measurement configuration message carries the automatic handover identifier, and the user equipment can determine the measurement configuration of the automatic handover, so that the base station and the user equipment can learn the measurement of the automatic handover.
  • the configuration enables the base station and the user equipment to know when to perform automatic handover, thereby enabling an automatic handover scheme when the LBT mechanism is used in the MuLTE-Fire system, and the user equipment can perform automatic handover.
  • the automatic switching scheme can be implemented, it is possible to solve the problem that the user equipment switching failure rate is high due to the high channel occupancy rate of the target cell when the user equipment uses the LBT mechanism in the MuLTE-Fire system, so that the user waves ⁇
  • the target cell with a lower channel occupancy rate can be selected to complete the handover, which reduces the handover delay of the user equipment, and reduces the probability of handover failure to a certain extent.
  • FIG. 7 is another schematic flowchart of an automatic switching method according to an embodiment of the present application. As shown in FIG. 7 , the method includes:
  • the base station generates a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, and at least one measurement report condition.
  • the base station sends the measurement configuration message to the user equipment.
  • the user equipment determines one or more measurement configurations as the measurement configuration of the automatic handover in the at least one measurement configuration, and the measurement result corresponding to the measurement object corresponding to the automatically switched measurement configuration meets the measurement report condition corresponding to the automatically switched measurement configuration.
  • a measurement report for automatic switching is sent to the base station, and the measurement report carries an automatic switching instruction.
  • the user equipment switches to the target cell.
  • the base station does not need to carry the automatic switching identifier through the measurement configuration message, but is determined by the user equipment. Which measurement configuration is the measurement configuration of the automatic handover, and then it is synchronized to the base station by the measurement report message, so that the measurement configuration in which the base station and the user equipment know the automatic handover can also be realized.
  • step 703 "when the measurement result of the measurement object corresponding to the automatically switched measurement configuration satisfies the measurement report condition corresponding to the measurement configuration of the automatic handover, the measurement report for the automatic handover is sent to the base station, and the measurement report carries the automatic handover instruction"
  • the user equipment may determine the measurement object corresponding to the measurement configuration of the automatic handover, and measure the measurement object to obtain a measurement result.
  • the user equipment performs measurement on the measurement object corresponding to the measurement configuration of the automatic handover, and the measurement result can be referred to the related description above, and details are not described herein again.
  • the following embodiments of the present application provide the following possible implementation manners in the implementation of the step 703, in which the user equipment determines one or more measurement configurations in the at least one measurement configuration as the measurement configuration of the automatic handover.
  • the first type the measurement configuration message sent by the base station to the user equipment, further includes indication information for indicating a measurement configuration that is selected by the user equipment as an automatic handover, so that the user equipment may be configured according to the measurement configuration message. Instructing information that one or more measurement configurations are selected as the measurement configuration for automatic switching in the measurement configuration indicated by the indication information.
  • one or more measurement configurations are selected as at least one measurement configuration as a measurement configuration for automatic switching.
  • the third type selects one or more measurement objects among the at least one measurement object, and the measurement configuration corresponding to the selected one or more measurement objects is used as the measurement configuration of the automatic switching.
  • one or more measurement report conditions are selected in the at least one measurement report condition, and the measurement configuration corresponding to the selected one or more measurement report conditions is used as the measurement configuration of the automatic switching.
  • the measurement report condition of the automatic switching is that the A3-1 event under the preset parameter is met, wherein the preset parameter can be determined autonomously by the user equipment.
  • the user equipment determines that automatic handover is required, and then sends a measurement report carrying the automatic handover instruction to the base station.
  • the embodiment of the present application provides a feasible implementation manner.
  • FIG. 8 is a schematic flowchart of a method for implementing step 703 according to an embodiment of the present application. As shown in FIG. 8 , the method is applied to a hybrid automatic switching scenario, and the method may include:
  • the user equipment starts an automatic handover timer and sends a measurement report for automatic handover to the base station, where the measurement report is used. Carry an automatic switching command.
  • the base station acquires a measurement report that carries an automatic handover instruction, determines to switch the user equipment, and sends a handover preparation request to the target base station according to the measurement report.
  • the measurement report for the automatic handover sent by the user equipment to the base station carries the automatic handover instruction.
  • the base station learns that the measurement report is a measurement report for automatic handover according to the automatic handover instruction, and further can initiate handover preparation.
  • the automatic switching instruction may be used to indicate the target base station.
  • the base station may send a handover preparation request to the target base station by using the X2 interface or the S1 interface, where the handover preparation request carries the context information of the user equipment.
  • the base station may further send the cell list to the user equipment.
  • the cell list includes identifiers of one or more cells under each target base station in one or more target base stations.
  • the cell list is used by the user equipment to preferentially select a target cell from the cells in the cell list when selecting the target cell.
  • the base station If the base station acquires the response message returned by the target base station, the base station sends a handover instruction to the user equipment.
  • step 803 For the specific implementation of the step 803, reference may be made to the related description of the foregoing step 204, and details are not described herein again.
  • the user equipment selects the target cell and switches to the target cell.
  • the user equipment can start timing. If the automatic switching timer expires, the user equipment has not obtained the switching instruction sent by the base station, and the user equipment determines that the user equipment needs to perform the switching instruction. Automatic switching, so the user equipment can independently select the target cell to be handed over, and switch to the autonomously selected target cell after the selection is completed.
  • the user equipment may select the target cell as follows.
  • the first type selects the target cell by using the user equipment according to the measurement result of the measurement object for the measurement configuration of the automatic handover when the automatic switching timer is started.
  • the first designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the user equipment may select the target cell in the cell included in the measurement object corresponding to the measurement report that starts the automatic handover timer and sends the automatic handover, that is, the measurement that the measurement result satisfies the measurement report condition and the corresponding measurement configuration is automatically switched.
  • the selected target cell is selected from the cells included in the configured measurement object.
  • the user equipment selects the target cell according to the measurement result of the first designated cell in the first specified duration T4 before the automatic handover timer expires.
  • the first designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the first specified duration T4 can be configured by the base station.
  • the cell included in the measurement object corresponding to the measurement configuration of the automatic handover may include the following situations:
  • the first type is a measurement configuration stored by the user equipment for the field including the automatic handover identifier and the storage measurement configuration, corresponding to The cell in the measurement object performs measurement, and when the measurement result satisfies the corresponding measurement report condition or other specified conditions, the user equipment uses the cell as the target cell.
  • the second type is that the user equipment measures the cell in the measurement object stored in the field that includes the automatic handover identifier and the location for storing the measurement object, and when the measurement result satisfies the corresponding measurement report condition or other specified conditions, the user equipment will This cell serves as a target cell.
  • the third type is the measurement report condition stored by the user equipment in the field including the automatic handover identifier and the condition for storing the measurement report, and the measurement is performed on the cell in the corresponding measurement object, and when the measurement result satisfies the corresponding measurement report condition or other
  • the user equipment uses the cell as the target cell.
  • the fourth type is that the user equipment measures the cell included in the measurement object stored in the field that includes the automatic handover identifier and the measurement measurement object, and the measurement result satisfies the field that includes the automatic handover identifier and the condition for storing the measurement report. When the stored measurement report condition is met, the user equipment uses the cell as the target cell.
  • the user equipment selects the target cell according to the measurement result of the designated cell in the second specified duration T5 after the automatic handover timer expires.
  • the user equipment may select the target cell according to the measurement result of the first designated cell in the second specified duration T5 after the automatic handover timer expires.
  • the first designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the second specified duration T5 can be configured by the base station.
  • the cell included in the measurement object corresponding to the measurement configuration of the automatic handover may include the following situations:
  • the first type is a measurement configuration stored by the user equipment for the field including the automatic handover identifier and the storage measurement configuration, corresponding to The cell in the measurement object performs measurement, and when the measurement result satisfies the corresponding measurement report condition or other specified conditions, the user equipment uses the cell as the target cell.
  • the second type is that the user equipment measures the cell in the measurement object stored in the field that includes the automatic handover identifier and the location for storing the measurement object, and when the measurement result satisfies the corresponding measurement report condition or other specified conditions, the user equipment will This cell serves as a target cell.
  • the third type is the measurement report condition stored by the user equipment in the field including the automatic handover identifier and the condition for storing the measurement report, and the measurement is performed on the cell in the corresponding measurement object, and when the measurement result satisfies the corresponding measurement report condition or other
  • the user equipment uses the cell as the target cell.
  • the fourth type is that the user equipment measures the cell included in the measurement object stored in the field that includes the automatic handover identifier and the measurement measurement object, and the measurement result satisfies the field that includes the automatic handover identifier and the condition for storing the measurement report. When the stored measurement report condition is met, the user equipment uses the cell as the target cell.
  • the user equipment selects a cell as the target cell from the cell list according to a measurement result of a cell in the cell list.
  • the cell list may be sent to the user equipment before the base station sends a handover preparation request to the target base station.
  • the user equipment can use the cell as the target cell as long as the signal quality of the cell exceeds a specified threshold.
  • the user equipment may use the cell as the target cell.
  • the cell configures the cell in the corresponding measurement object for the measurement of the automatic handover, and the measurement result of the cell meets the measurement report condition corresponding to the measurement configuration of the automatic handover, the user equipment may use the cell as the target cell.
  • the user equipment Before the automatic switching timer expires, if the user equipment acquires the handover instruction sent by the base station, the user equipment switches to the target cell indicated by the handover indication.
  • the user equipment If the handover command sent by the base station is obtained by the user equipment before the automatic handover timer expires, the user equipment performs a traditional handover procedure, switches to the target cell indicated by the handover instruction, and stops the automatic handover timer.
  • the technical solution described in FIG. 8 is applied to a hybrid automatic handover scenario, which is a measurement configuration in which a user equipment automatically selects an automatic handover, instead of assigning with a base station, but the user equipment needs to synchronize the measurement report for automatic handover to the base station through the measurement report.
  • the user equipment starts the automatic switching timer. When the automatic switching timer expires and the handover command sent by the base station is not received, the user equipment selects the target cell and switches to the target cell. If the automatic switching timer expires, the user equipment receives the timer.
  • the handover command sent by the base station cannot select the target cell autonomously, and needs to switch to the target cell indicated by the handover instruction by the base station, which is called a hybrid automatic handover scenario.
  • step 703 and step 704 the embodiment of the present application further provides another feasible implementation manner.
  • FIG. 9 is a schematic flowchart of another implementation method of step 703 according to an embodiment of the present application. As shown in FIG. 9 , the method is applied to a completely automatic switching scenario.
  • the method may include:
  • the user equipment sends a measurement report for the automatic handover to the base station, where the measurement report carries an automatic switching instruction.
  • the user equipment can perform the autonomous selection of the target cell and switch to the device without waiting for the automatic handover timer to expire.
  • the user equipment in this embodiment does not need to start the automatic switching timer, and only sends the measurement report carrying the automatic switching instruction to the base station, so that the user equipment needs to perform automatic switching after selecting the measurement configuration of the automatic switching.
  • the measurement configuration of the automatic handover can be synchronized to the base station, so that both the user equipment and the base station can know the measurement configuration of the automatic handover.
  • the base station After acquiring the measurement report that carries the automatic handover command, the base station sends a handover preparation request to the target base station according to the measurement report.
  • step 902 For a specific implementation of the step 902, reference may be made to the related description of the foregoing step 802, and details are not described herein again.
  • the base station acquires a response message of the handover preparation request returned by the target base station.
  • step 903 For the specific implementation of the step 903, reference may be made to the related description of the foregoing step 803, and details are not described herein again.
  • the user equipment selects a target cell and switches to the target cell.
  • the user equipment may select the target cell according to the cell list.
  • the user equipment selecting the target cell according to the cell list reference may be made to the related description of the foregoing step 804, and details are not described herein again.
  • FIG. 10 is a schematic flowchart of another specific implementation manner of an automatic switching method according to an embodiment of the present application. This embodiment is applied to a hybrid automatic switching scenario. As shown in FIG. 10, the method includes:
  • the base station generates a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, and at least one measurement report condition.
  • the base station sends a measurement configuration message to the user equipment.
  • the user equipment determines one or more measurement configurations in the at least one measurement configuration as a measurement configuration of the automatic handover.
  • the user equipment determines a measurement object corresponding to the measurement configuration that is automatically switched, and performs measurement on the measurement object to obtain a measurement result.
  • the user equipment determines whether the measurement result of the measurement object corresponding to the measurement configuration of the automatic switching meets the measurement report condition corresponding to the measurement configuration of the automatic switching, and if yes, executes 1006.
  • the user equipment starts an automatic switching timer and sends a measurement report for automatic switching to the base station, where the measurement report carries an automatic switching instruction. Then step 1007 is performed or step 1009 is performed.
  • the base station After determining, by the user equipment, the measurement report that carries the automatic handover instruction, the base station determines to switch the user equipment, and sends a handover preparation request to the target base station according to the measurement report.
  • step 1008 When the base station acquires the response message of the handover preparation request sent by the target base station, it is determined whether the channel is occupied. If not, step 1009 is performed. If yes, the switch instruction cannot be sent, and then step 1011 is performed.
  • the base station sends a handover instruction to the user equipment.
  • the user equipment If the user equipment acquires a handover command sent by the base station before the automatic handover timer expires, the user equipment switches to the target cell indicated by the handover instruction.
  • FIG. 11 is a schematic flowchart of another specific implementation manner of an automatic handover method according to an embodiment of the present application. This embodiment is applied to a completely automatic handover scenario. As shown in FIG. 11, the method includes:
  • the base station generates a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, and at least one measurement report condition.
  • the base station sends a measurement configuration message to the user equipment.
  • the user equipment determines one or more measurement configurations in the at least one measurement configuration as the measurement configuration of the automatic handover.
  • the user equipment determines a measurement object corresponding to the measurement configuration that is automatically switched, and performs measurement on the measurement object to obtain a measurement result.
  • the user equipment determines whether the measurement result of the measurement object corresponding to the measurement configuration of the automatic switching meets the measurement report condition corresponding to the measurement configuration of the automatic switching, and if yes, executes 1106.
  • the user equipment sends a measurement report for automatic handover to the base station, where the measurement report carries an automatic handover indication, and then steps 1107 and 1109 are performed.
  • the base station After acquiring the measurement report that carries the automatic handover command, the base station sends a handover preparation request to the target base station according to the measurement report, and acquires a response message returned by the target base station.
  • the base station acquires a response message of the handover preparation request sent by the target base station.
  • the user equipment selects a target cell and switches to the target cell.
  • the embodiment of the present application further provides a method flow for the base station side.
  • FIG. 12 is another schematic flowchart of the base station side in the automatic handover method provided by the embodiment of the present application, as shown in FIG. 12 .
  • the method can include:
  • the measurement configuration message includes at least one measurement configuration, at least one measurement object, and at least one measurement report condition.
  • the user equipment 1202 Send the measurement configuration message to the user equipment, so that the user equipment determines one or more measurement configurations in the at least one measurement configuration as a measurement configuration of automatic handover, and corresponds to a measurement configuration of automatic handover.
  • the measurement result of the measurement object satisfies the measurement report condition corresponding to the measurement configuration of the automatic handover, and sends a measurement report for the automatic handover to the base station, where the measurement report carries an automatic handover instruction and switches to the target cell.
  • FIG. 13 is another schematic flowchart of an automatic switching method according to an embodiment of the present application. As shown in FIG. 13 , the method includes:
  • the measurement object for automatic switching and the condition for automatic switching may be pre-configured on the user equipment, so that the user equipment can be directly acquired when needed.
  • the method may further include the steps of: measuring a measurement object for automatic switching, and obtaining a measurement result.
  • step 1302 can include the following possible implementations.
  • the first type selects the target cell according to the measurement result of the first designated cell.
  • the second designated cell is an arbitrary neighboring cell or a cell included in the measurement object for automatic handover. For details, refer to the related description of selecting a target cell in FIG. 3, and details are not described herein again.
  • the cell is selected from the cell list as the target cell.
  • the cell is selected from the cell list as the target cell.
  • the second implementation manner may also be preferentially used, and the first implementation manner is adopted when the cell in the cell list cannot be selected as the target cell.
  • the user equipment determines the measurement configuration of the automatic handover, and then indicates the measurement configuration of the automatic handover to the base station by using the measurement report message, so that the base station and the user equipment can learn the automatic handover.
  • the measurement configuration so as to know when to perform automatic switching, can realize the automatic switching scheme when the LBT mechanism is used in the MuLTE-Fire system, and the user equipment can perform automatic switching.
  • the automatic switching scheme can be implemented, it is possible to solve the problem that the user equipment switching failure rate is high due to the high channel occupancy rate of the target cell when the user equipment uses the LBT mechanism in the MuLTE-Fire system, so that the user waves ⁇
  • the target cell with a lower channel occupancy rate can be selected to complete the handover, which reduces the handover delay of the user equipment, and reduces the probability of handover failure to a certain extent.
  • the user equipment determines the measurement configuration of the automatic handover, and then indicates the measurement configuration of the automatic handover to the base station by using the automatic handover indication, so that the base station and the user equipment can learn the measurement configuration of the automatic handover. Therefore, it is known when automatic switching is performed, so that an automatic switching scheme when the LBT mechanism is used in the MuLTE-Fire system can be realized, and the user equipment can perform automatic switching.
  • the automatic switching scheme can be implemented, it is possible to solve the problem that the user equipment switching failure rate is high due to the high channel occupancy rate of the target cell when the user equipment uses the LBT mechanism in the MuLTE-Fire system, so that the user waves ⁇
  • the target cell with a lower channel occupancy rate can be selected to complete the handover, which reduces the handover delay of the user equipment, and reduces the probability of handover failure to a certain extent.
  • the embodiment of the present application further provides an apparatus embodiment for implementing the steps and methods in the foregoing method embodiments.
  • FIG. 14 is a schematic structural diagram of an automatic switching system according to an embodiment of the present application.
  • the system includes a base station 100 and a user equipment 200:
  • the base station 100 is configured to generate a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier;
  • the base station 100 is further configured to send the measurement configuration message to the user equipment.
  • the user equipment 200 is configured to acquire the measurement configuration message.
  • the user equipment 200 is further configured to use the measurement configuration for the automatic handover identifier as the measurement configuration of the automatic handover, and the measurement result corresponding to the measurement object corresponding to the measurement configuration of the automatic handover meets the measurement configuration corresponding to the automatic handover measurement configuration. When reporting conditions, switch to the target cell.
  • the user equipment 200 when the measurement result of the measurement object corresponding to the automatically switched measurement configuration meets the measurement report condition corresponding to the measurement configuration of the automatic switching, the user equipment 200 is further configured to start the automatic switching timer. Sending a measurement report for automatic handover to the base station;
  • the base station 100 is further configured to determine to switch the user equipment according to the measurement report for automatic handover sent by the user equipment, and send a handover preparation request to the target base station, and acquire the target when the base station acquires the target Sending a handover instruction to the user equipment when the response message of the handover preparation request sent by the base station is sent;
  • the user equipment 200 is further configured to select the target cell and switch to the target cell; or If the automatic switching timer expires, the user equipment is further configured to switch to the target cell indicated by the handover instruction when acquiring the handover instruction sent by the base station.
  • the user equipment 200 when the measurement result of the measurement object corresponding to the measurement configuration of the automatic handover meets the measurement report condition corresponding to the measurement configuration of the automatic handover, the user equipment 200 is further configured to determine to perform handover, and The base station sends a measurement report for automatic handover;
  • the base station 100 is further configured to: send, according to the measurement report for the automatic handover, the handover preparation request to the target base station, and obtain a response message of the handover preparation request sent by the target base station;
  • the user equipment 200 is further configured to select the target cell and switch to the target cell.
  • the automatic switching identifier is included in one or more of the measurement configurations; and/or one or more of the measurement objects include the automatic switching identifier; and/or one The automatic switching identifier is included in one or more of the measurement report conditions.
  • the user equipment 200 is further configured to determine, according to the measurement configuration message, a measurement object corresponding to the automatically switched measurement configuration, and perform measurement on the measurement object to obtain a measurement result.
  • the user equipment 200 is specifically configured to:
  • the first designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the user equipment 200 is specifically configured to: select the target cell according to a measurement result of the second designated cell; and the second designated cell is a measurement configuration of any neighboring cell or automatic handover. The cell included in the corresponding measurement object.
  • the user equipment 200 is specifically configured to:
  • FIG. 15 is a functional block diagram of a base station according to an embodiment of the present application.
  • the base station includes:
  • the generating unit 11 is configured to generate a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, at least one measurement report condition, and an automatic handover identifier;
  • the sending unit 12 is configured to send the measurement configuration message to the user equipment, so that the user equipment acquires the measurement configuration message, and uses the measurement configuration for the automatic handover identifier as a measurement configuration for automatic handover.
  • the target cell is switched.
  • the base station further includes:
  • the obtaining unit 13 is configured to acquire the measurement report for the automatic handover sent by the user equipment;
  • the sending unit 12 is further configured to: send a handover preparation request to the target base station according to the measurement report for automatic handover; and send a handover to the user equipment when acquiring a response message of the handover preparation request sent by the target base station instruction.
  • the automatic switching identifier is included in one or more of the measurement configurations; and/or one or more of the measurement objects include the automatic switching identifier; and/or one The automatic switching identifier is included in one or more of the measurement report conditions.
  • the embodiment of the present application further provides an automatic switching system, as shown in FIG. 14, including a user equipment and a base station:
  • the base station 100 is configured to generate a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, and at least one measurement report condition;
  • the base station 100 is further configured to send the measurement configuration message to the user equipment 200.
  • the user equipment 200 is further configured to determine, in the at least one measurement configuration, one or more measurement configurations as a measurement configuration of the automatic handover, and when the measurement result of the measurement object corresponding to the automatically switched measurement configuration meets the automatic handover
  • a measurement report for the automatic handover is sent to the base station 100, where the measurement report carries an automatic handover instruction and is switched to the target cell.
  • the user equipment 200 is further configured to start an automatic switching timer. ;
  • the base station 100 is further configured to: after acquiring the measurement report that carries the automatic handover instruction, determine to switch the user equipment, and send a handover preparation request to the target base station according to the measurement report; when the base station acquires the a response message returned by the target base station, where the base station sends a handover instruction to the user equipment;
  • the user equipment 200 is specifically configured to:
  • the automatic handover timer expires and the user equipment does not acquire the handover instruction sent by the base station according to the measurement report, select the target cell and switch to the target cell; or, when the automatic Before the handover timer expires, if the user equipment acquires the handover instruction sent by the base station, it switches to the target cell indicated by the handover instruction.
  • the base station 100 is further configured to: after acquiring the measurement report that carries the automatic handover instruction, send a handover preparation request to the target base station according to the measurement report, and obtain the target base station to return.
  • Response message
  • the user equipment 200 is specifically configured to: select the target cell, and switch to the target cell.
  • the user equipment 200 is further configured to determine a measurement object corresponding to the measurement configuration of the automatic handover, and measure the measurement object to obtain a measurement result.
  • the measurement configuration message further includes indication information for indicating a measurement configuration that is selected by the user equipment as an automatic handover;
  • the user equipment 200 is specifically configured to:
  • the user equipment 200 is specifically configured to:
  • One or more measurement report conditions are selected in the at least one measurement report condition, and the measurement configuration corresponding to the selected one or more measurement report conditions is used as the measurement configuration of the automatic handover.
  • the user equipment 200 is specifically configured to:
  • the first designated cell is a cell included in a measurement object corresponding to an arbitrary neighboring cell or an automatically switched measurement configuration.
  • the user equipment 200 is specifically configured to:
  • the user equipment 200 is specifically configured to: obtain the cell list sent by the base station, and select, according to the measurement result of the cell in the cell list, from the cell list.
  • the cell serves as the target cell.
  • FIG. 16 is another functional block diagram of a base station according to an embodiment of the present application. As shown in FIG. 16
  • a generating unit 21 configured to generate a measurement configuration message, where the measurement configuration message includes at least one measurement configuration, at least one measurement object, and at least one measurement report condition;
  • the sending unit 22 is configured to send the measurement configuration message to the user equipment, so that the user equipment determines one or more measurement configurations in the at least one measurement configuration as a measurement configuration of the automatic handover, and automatically switches The measurement report corresponding to the measurement object meets the measurement report condition corresponding to the automatically switched measurement configuration, and sends a measurement report for the automatic handover to the base station, where the measurement report carries an automatic handover instruction and switches to the target cell. .
  • the sending unit 22 is further configured to send a handover preparation request to the target base station according to the measurement report that is sent by the terminal and that carries the automatic handover instruction.
  • the method further includes an obtaining unit 23, configured to acquire a response message returned by the target base station.
  • the sending unit 22 is further configured to send, according to the measurement report that is sent by the terminal and that carries an automatic handover instruction, a handover preparation request to the target base station; if the response returned by the target base station is obtained, The message sends a handover instruction to the user equipment.
  • the measurement configuration message further includes indication information, where the indication information is used by the user equipment to select one or more measurement configurations as automatic switching in a measurement configuration indicated by the indication information. Measurement configuration.
  • FIG. 17 is a functional block diagram of a user equipment according to an embodiment of the present application, as shown in FIG.
  • An obtaining unit 31 configured to determine a measurement object for automatic switching and a condition for automatic switching
  • the sending unit 32 is configured to send an automatic switching instruction to the base station when the measurement result of the measurement object for automatic switching satisfies the switching condition of the automatic switching;
  • the processing unit 33 is configured to select and switch to the target cell when the measurement result of the measurement object corresponding to the automatically switched measurement configuration satisfies the measurement report condition corresponding to the automatically switched measurement configuration.
  • the processing unit 33 is specifically configured to:
  • the second designated cell is an arbitrary neighboring cell or a cell included in the measurement object for automatic handover.
  • the method further includes:
  • An obtaining unit 34 configured to acquire the cell list sent by the base station
  • the processing unit 33 is specifically configured to: select, according to the measurement result of the cell in the cell list, a cell as the target cell from the cell list.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined. Or it can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present application. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

Les modes de réalisation de la présente invention concernent un procédé de commutation automatique, un système, une station de base et un équipement utilisateur. La station de base génère un message de configuration de mesure, le message de configuration de mesure comprenant au moins une configuration de mesure, au moins un objet de mesure, au moins une condition de rapport de mesure et un identifiant de commutation automatique; la station de base envoie le message de configuration de mesure à l'équipement utilisateur; et l'équipement utilisateur acquiert le message de configuration de mesure, utilise la configuration de mesure à laquelle l'identifiant de commutation automatique est dirigé en tant que configuration de mesure d'une commutation automatique, et commute vers une cellule cible lorsque le résultat de mesure de l'objet de mesure correspondant à la configuration de mesure de la commutation automatique satisfait à la condition de rapport de mesure correspondant à la configuration de mesure de commutation automatique. La solution technique fournie dans les modes de réalisation de la présente invention est utilisée pour résoudre le problème de l'état de la technique selon lequel l'équipement utilisateur ne parvient pas à effectuer une commutation automatique.
PCT/CN2018/075278 2017-02-04 2018-02-05 Procédé de commutation automatique, système, station de base et équipement utilisateur Ceased WO2018141287A1 (fr)

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CN201710064631.3A CN107071842B (zh) 2017-02-04 2017-02-04 自动切换方法、系统、基站及用户设备

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