WO2015154373A1 - 一种避免用户设备掉话的方法及装置 - Google Patents

一种避免用户设备掉话的方法及装置 Download PDF

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WO2015154373A1
WO2015154373A1 PCT/CN2014/086159 CN2014086159W WO2015154373A1 WO 2015154373 A1 WO2015154373 A1 WO 2015154373A1 CN 2014086159 W CN2014086159 W CN 2014086159W WO 2015154373 A1 WO2015154373 A1 WO 2015154373A1
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cell
measurement
measurement report
user equipment
request
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PCT/CN2014/086159
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English (en)
French (fr)
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贾伟
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中兴通讯股份有限公司
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Publication of WO2015154373A1 publication Critical patent/WO2015154373A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • the present invention relates to the field of mobile communication systems, and more particularly to a method and apparatus for avoiding dropped calls of user equipment (UE, User Equipment) when a cell is turned off in a mobile communication system.
  • UE User Equipment
  • the physical cell identifier may be in conflict or confusion.
  • PCI physical cell identifier
  • the embodiments of the present invention are directed to the improvement of the foregoing problems in the mobile communication system, that is, the technical problem at least that can be solved by the embodiments of the present invention is to provide a method and a device for avoiding UE dropped calls, and the method or device can effectively avoid the cell A phenomenon in which a large number of UEs in a cell are dropped due to shutdown.
  • the method for avoiding the dropped call of the UE includes: sending a measurement request to the UE having the service in the cell, and instructing the UE to measure the quality of the neighboring cell, before the cell is turned off.
  • the UE is switched or redirected to the target cell according to the content of the measurement report.
  • the above measurement is an A4 event (event A4) measurement specified in the 3GPP (3rd Generation Partnership Project) protocol.
  • the foregoing method for avoiding UE dropped calls further includes: prohibiting UEs outside the cell from accessing or switching to the cell before performing the cell shutdown.
  • the forbidding the UE outside the cell to access the cell includes: changing the cell barring field in the first type of system information block in the broadcast message to prohibit, and then performing broadcast update; prohibiting the UE outside the cell from switching to the cell,
  • the method includes: upon receiving the handover request sent by the UE to be handed over to the cell, replying to the handover failure message.
  • the above measurement request is included in an RRC (Radio Resource Control) link reconfiguration message.
  • RRC Radio Resource Control
  • the UE If the UE does not meet the measurement requirement, or does not report the measurement report before the timer expires, the UE is redirected to the cell with higher priority according to the neighboring area configuration information.
  • the embodiment of the present invention further provides an apparatus for preventing a user equipment UE from dropping a call, including: a sending module, configured to send a measurement request to all UEs in the cell that have a service before the cell is turned off, and instruct the UE to measure the neighbor The quality of the cell, the execution module, configured to switch or redirect the UE to the target cell according to the content of the measurement report when receiving the measurement report that meets the measurement requirement reported by the UE within a predetermined time.
  • a sending module configured to send a measurement request to all UEs in the cell that have a service before the cell is turned off, and instruct the UE to measure the neighbor The quality of the cell
  • the execution module configured to switch or redirect the UE to the target cell according to the content of the measurement report when receiving the measurement report that meets the measurement requirement reported by the UE within a predetermined time.
  • the apparatus further includes a barring module configured to prohibit UEs outside the cell from accessing or switching to the cell.
  • the method or the device provided by the embodiment of the present invention performs processing according to the specific situation of the UE in the cell when modifying the PCI or other reasons, and when the cell in the cell has no service, directly performs the cell. Deleted. In a short period of time, the UE re-establishes the source cell to reduce the signaling storm in a short period of time. If some UEs in the cell have services, the UEs with services in the cell are moved out of the cell, and if no UE is used, the UE is directly re-established, which reduces the dropped calls of the UE, thereby improving the user experience.
  • FIG. 1 is a flow chart showing the basic steps of a method for avoiding UE dropped calls according to the present invention
  • FIG. 2 is a flowchart of a specific implementation manner of a method for avoiding UE dropped calls according to the present invention
  • FIG. 3 is a flow chart of a preferred embodiment of a method for avoiding dropped calls of a UE according to the present invention
  • FIG. 4 is a schematic diagram of a base station prohibiting UE from cutting in
  • FIG. 5 is a schematic diagram of an apparatus for avoiding UE dropped calls according to the present invention.
  • FIG. 1 is a flowchart of a basic procedure of a method for avoiding UE dropped calls according to the present invention. As shown in FIG. 1, the method for avoiding UE dropped calls according to the present invention includes:
  • the base station Before performing cell shutdown, the base station sends a measurement request to the UE that has the service in the cell, and instructs the UE to measure the quality of the neighbor cell.
  • the base station When receiving the measurement report that meets the measurement requirement reported by the UE within a predetermined time, the base station switches or redirects the UE to the target cell according to the content of the measurement report.
  • the information of each E-RAB (Evolved-Radio Access Bearer) of the built-in data radio bearer is saved in the UE context, and the base station can establish the E-RAB of the UE. It is determined whether the UE has a service, for example, if the UE's E-RAB has been established, it is determined that the UE has a service.
  • the measurement request in step 101 may be included in an RRC Connection Reconfiguration message, or may be sent as a separate message, and the measurement request includes measurement configuration information; the UE performs the neighboring cell according to the measurement configuration information in the measurement request. measuring.
  • the measurement configuration information includes a neighboring cell quality threshold, and the measured content includes neighbor cell quality information, such as: Reference Signal Received Power (RSRP, Reference Singnal Received Power), Reference Signal Received Quality (RSRQ, Reference Singnal). Received Quanity), etc.; the UE performs measurement and reports the measurement result to the base station when the measurement condition is satisfied.
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • Received Quanity Received Quanity
  • the A4 event specified in the 3GPP communication protocol may be used to trigger the reporting of the measurement report, that is, when the quality of the neighboring cell is higher than the set threshold, the measurement request is considered to be met, and the measurement result is sent to the base station by using the measurement report message.
  • the base station switches the UE to the cell according to the cell ID of the neighboring cell that satisfies the measurement requirement carried in the measurement report.
  • the UE may be handed over or redirected to the cell with the best cell quality or the cell corresponding to the frequency with high priority; or according to other rules. Select the target cell to switch or redirect.
  • the cell A is to be deleted, and the base station where the cell A is located is recorded as the base station A.
  • the method for avoiding UE dropped calls in this embodiment includes:
  • Step 201 After receiving the instruction to turn off the cell A, the base station A starts a timer, and sends the A4 measurement request to the UE in the cell A according to a certain time interval T in sequence;
  • the A4 measurement request may be included in an RRC Connection Reconfiguration message or sent as a separate message.
  • Step 202 After receiving the A4 measurement request, the UE in the cell A performs the A4 measurement. When the measurement requirement is met, the measurement report is reported to the base station A before the timer expires; when the UE does not meet the measurement requirement, or is in the timing If the A4 measurement report is not reported before the timer expires, the process jumps to step 204.
  • the measurement report carries the physical identifier of the cell that meets the measurement requirement. For convenience of description, it is assumed that the cell that meets the measurement requirement in the measurement report reported by the UE1 is the cell B.
  • Step 203 The base station A switches or redirects the UE1 to the target cell B.
  • the base station A can handover or redirect the UE1 to the cell with the best cell quality.
  • Step 204 The base station redirects the UE to the cell with higher priority according to the neighboring area configuration information and the predetermined priority.
  • the base station may redirect the UE to the neighboring cell with a high frequency priority according to the neighboring area configuration information.
  • Step 205 After the UE with the service in the cell A moves out, the cell is turned off.
  • FIG. 3 is a schematic diagram of a preferred embodiment of the present invention. As shown in FIG. 3, the method for avoiding UE dropped calls in this embodiment includes:
  • Step 301 After receiving the instruction to delete the cell A, the base station A prohibits the new UE from accessing the cell A.
  • the specific implementation manner may be: the base station changes the cellBarred field of the SystemInformationBlockType1 (the first type of system information block) in the cell broadcast message to barred (disabled), and then performs broadcast update.
  • the base station changes the cellBarred field of the SystemInformationBlockType1 (the first type of system information block) in the cell broadcast message to barred (disabled), and then performs broadcast update.
  • Step 302 The base station A prohibits the UE from switching from other cells to the cell A.
  • the base station A if a UE requests to handover from another cell to the cell A, that is, when the cell A is used as the target cell to send a handover request, the base station A returns a handover failure message to the UE.
  • Step 303 The base station A starts a timer, and sends the A4 measurement request to the UE in the cell A in a certain time interval T.
  • the A4 measurement request may be included in the RRC Connection Reconfiguration message. Can be sent as a separate message.
  • Step 304 After receiving the A4 measurement request, the UE in the cell A performs the A4 measurement. When the measurement requirement is met, the measurement report is reported to the base station A before the timer expires; when the UE does not meet the measurement requirement, or is in the timing If the A4 measurement report is not reported before the timer expires, the process jumps to step 306.
  • the measurement report carries the physical identifier of the cell that meets the measurement requirement. For convenience of description, it is assumed that the cell that meets the measurement requirement in the measurement report reported by the UE1 is the cell B.
  • Step 305 The base station A switches or redirects the UE1 to the target cell B.
  • the base station A may switch or redirect the UE1 to the cell with the best cell quality, or switch or redirect to the cell corresponding to the frequency with a higher priority; Other rules select the target cell to switch or redirect.
  • Step 306 The base station redirects the UE to the cell with high frequency priority according to the neighboring area configuration information and the predetermined priority.
  • Step 307 When all the UEs in the cell move out, the cell is turned off.
  • the UE without service is re-established to other cells in the form of re-establishment.
  • FIG. 4 is a schematic diagram of prohibiting UE from cutting in, showing a detailed implementation of the above step 302.
  • the process of prohibiting the UE from entering the base station includes: the source base station sends a handover request message to the MME, and then the MME sends the handover request message to the target base station; and the target base station that needs to perform the corresponding cell shutdown receives the After the message, the message directly returns to the switch failure message, and the UE is prohibited from cutting in.
  • FIG. 5 is a schematic diagram of an apparatus for avoiding UE dropped calls according to the present invention.
  • the method includes: a sending module, configured to send a measurement request to all UEs in the cell that are in the cell before the cell is shut down, instructing the UE to measure the quality of the neighboring cell; and executing the module, being set to be scheduled
  • the UE switches or redirects the UE to the target cell according to the content of the measurement report.
  • the apparatus for avoiding the dropped call of the UE in the embodiment of the present invention may further include a prohibiting module, configured to prohibit the UE outside the cell from accessing or switching to the cell.
  • the apparatus for avoiding UE dropped calls in the embodiment of the present invention, and the sending module, the executing module, and the prohibiting module of the apparatus may be implemented by a processor in a base station, may also be implemented by a specific logic circuit, or may be implemented by software. Or a combination of software and hardware.
  • the processor may be a Central Processing Unit (CPU), a Micro Processor Unit (MPU), a Digital Signal Processor (DSP), or a Field Programmable Gate Array. (FPGA, Field-Programmable Gate Array), etc.
  • the embodiment of the present invention provides a method and an apparatus for avoiding dropped calls of a user equipment, which have the following beneficial effects: when a PCI is modified or other reasons cause a cell to be deleted, the UE performs specific conditions according to the UE in the cell. Processing, when there is no service in the UE in the cell, the cell deletion is directly performed. In a short period of time, the UE re-establishes the source cell to reduce the signaling storm in a short period of time. If some UEs in the cell have services, the UEs with services in the cell are moved out of the cell, and if no UE is used, the UE is directly re-established, which reduces the dropped calls of the UE, thereby improving the user experience.

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Abstract

本发明涉及无线通信系统中小区关断时避免用户设备掉话的方法和装置。该方法，包括：在进行小区关断前，向所述小区中存在业务的UE下发测量请求，指示UE测量邻小区的质量；在预定时间内接收到UE上报的满足测量要求的测量报告时，根据所述测量报告的内容将UE切换或者重定向到目标小区。采用本发明的方法或装置，可以减少用户设备掉话，提升了用户的体验。

Description

一种避免用户设备掉话的方法及装置 技术领域
本发明涉及移动通信系统领域，尤其是移动通信系统中小区关断时避免用户设备(UE，User Equipment)掉话的方法和装置。
背景技术
移动通信网络大规模部署的时候，网络中会出现物理小区识别码(PCI，Physical Cell Id)冲突或者混淆的情况，在修改PCI时或者其他需要进行小区关断或小区删建的情况下，会导致小区中的大量UE出现掉话现象，客户体验不佳。
发明内容
本发明实施例针对移动通信系统中的上述问题做出改进，即本发明实施例至少能够解决的技术问题是提供一种避免UE掉话的方法及装置，该方法或装置能够有效地避免因小区关断而引起的小区中大量UE掉话的现象。
为至少解决上述技术问题，本发明实施例提供的避免UE掉话的方法，包括：在进行小区关断前，向所述小区中存在业务的UE下发测量请求，指示UE测量邻小区的质量；在预定时间内接收到UE上报的满足测量要求的测量报告时，根据所述测量报告的内容将UE切换或者重定向到目标小区。
上述测量为3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)协议中规定的A4事件(event A4)测量。
上述避免UE掉话的方法还包括：在所述进行小区关断前，禁止所述小区之外的UE接入或切换到所述小区。
禁止小区之外的UE接入所述小区包括：将广播消息中第一类系统资讯区块中的小区禁止字段改为禁止，然后进行广播更新；禁止小区之外的UE切换到所述小区，包括：在接收到UE发送的要切换到所述小区的切换请求时，回复切换失败消息。
上述测量请求包含在RRC(Radio Resource Control，无线资源控制)链接重配消息中。
若UE不满足测量要求，或者在定时器超时之前没有上报测量报告，则根据邻区配置信息将UE重定向到优先级高的小区。
本发明实施例还提供一种避免用户设备UE掉话的装置，包括：发送模块，设置为在进行小区关断前，向所述小区中所有存在业务的UE下发测量请求，指示UE测量邻小区的质量；执行模块，设置为在预定时间内接收到UE上报的满足测量要求的测量报告时，根据所述测量报告的内容将UE切换或者重定向到目标小区。
上述装置还包括禁止模块，设置为禁止所述小区之外的UE接入或切换到所述小区。
采用本发明实施例提供的方法或装置，在修改PCI或其他原因导致要进行小区删建时，根据小区中UE的具体情况分别进行处理，当小区中的UE都没有业务存在时，直接进行小区删建。短时间内，UE则会重建立到源小区，减少短时间内的信令风暴。若小区中部分UE有业务存在，则将小区中存在业务的UE迁出该小区，没有业务UE则直接重建立，减少UE的掉话，从而提升了用户的体验。
附图说明
图1是本发明避免UE掉话的方法基本步骤流程图；
图2是本发明避免UE掉话的方法具体实现方式的流程图；
图3本发明避免UE掉话的方法优选实施例的流程图；
图4是基站禁止UE切入的示意图；
图5是本发明避免UE掉话的装置的示意图。
具体实施方式
图1是本发明避免UE掉话的方法基本步骤的流程图，如图1所示，本发明避免UE掉话的方法包括：
101：在进行小区关断前，基站向小区中存在业务的UE发送测量请求，指示UE测量邻小区的质量。
102：在预定时间内接收到UE上报的满足测量要求的测量报告时，基站根据所述测量报告的内容将UE切换或者重定向到目标小区。
在LTE通信系统中，UE上下文中会保存已建数据无线承载的每个E-RAB(Evolved-Radio Access Bearer，演进型无线接入承载)的信息，基站可以以UE的E-RAB建立情况来判断此UE是否存在业务，例如：当UE的E-RAB已建立的情况下，判定UE存在业务。
步骤101中的测量请求可以包含在RRC Connection Reconfiguration(RRC连接重配)消息中，也可以作为一个单独的消息发送，测量请求包含测量配置信息；UE根据测量请求中的测量配置信息对邻小区进行测量。本发明的是实施例中，测量配置信息包括邻小区质量门限，测量的内容包括邻小区质量信息，如：参考信号接收功率(RSRP，Reference Singnal Received Power)、参考信号接收质量(RSRQ，Reference Singnal Received Quanity)等；UE执行测量并在满足测量条件时上报测量结果给基站。具体的，可以是3GPP通信协议中规定的A4事件来触发上报测量报告，即当邻小区质量高于设定门限时，即认为满足测量要求，通过测量报告消息将测量结果发送给基站。基站根据测量报告携带的满足测量要求的邻小区的小区ID将UE切换到该小区。当测量报告携带的满足测量要求的邻小区的小区ID有多个时，可以把UE切换或重定向到小区质量最好的小区，或者优先级高的频点对应的小区；也可以按照其他规则选择切换或重定向的目标小区。
如图2所示，小区A要进行删建，小区A所在的基站记为基站A。本实施例中避免UE掉话的方法包括：
步骤201：基站A在接收到要关断小区A的指令后开启一个定时器，并给小区A中的存在业务的UE按照一定的时间间隔T依次下发A4测量请求；
具体的，该A4测量请求可以包含在RRC Connection Reconfiguration消息中，也可以作为一个单独的消息发送。
步骤202：小区A中的存在业务的UE接收到A4测量请求后，进行A4测量，当满足测量要求时，在定时器超时前上报测量报告给基站A；当UE不满足测量要求，或者在定时器超时之前没有上报A4测量报告，则跳转至步骤204。
所述测量报告中携带满足测量要求的小区的物理标识；为方便描述，这里假设UE1上报的测量报告中满足测量要求的小区为小区B。
步骤203：基站A把UE1切换或者重定向到目标小区B。
切换和重定向都属于现有技术的内容，不再赘述。如果满足测量要求的的邻小区有多个，基站A可以把UE1切换或重定向到小区质量最好的小区。
步骤204：基站根据邻区配置信息和预定的优先级将UE重定向到优先级高的小区。
具体的，可以是基站根据邻区配置信息将UE重定向到频点优先级高的邻小区。
步骤205：当小区A中有业务的UE迁出后，进行小区关断。
图3是本发明优选实施例的示意图，如图3所示，本实施例中避免UE掉话的方法包括：
步骤301：基站A在接收到要删除小区A的指令后，禁止新的UE接入到小区A。
具体实现方式可以是：基站将小区广播消息中SystemInformationBlockType1(第一类系统资讯区块)的cellBarred(小区禁止)字段改为barred(禁止)，然后进行广播更新。
步骤302：基站A禁止UE从其他小区切换到小区A。
具体的，若有UE请求从其他小区切换到小区A，即：把小区A作为目标小区发送切换请求时，基站A给UE回复切换失败消息。
步骤303：基站A开启一个定时器，并给小区A中的存在业务的UE按照一定的时间间隔T依次下发A4测量请求；具体的，该A4测量请求可以包含在RRC Connection Reconfiguration消息中，也可以作为一个单独的消息发送。
步骤304：小区A中的存在业务的UE接收到A4测量请求后，进行A4测量，当满足测量要求时，在定时器超时前上报测量报告给基站A；当UE不满足测量要求，或者在定时器超时之前没有上报A4测量报告，则跳转至步骤306。
所述测量报告中携带满足测量要求的小区的物理标识；为方便描述，这里假设UE1上报的测量报告中满足测量要求的小区为小区B。
步骤305：基站A把UE1切换或者重定向到目标小区B。
如果测量报告中满足测量要求的小区有多个，则基站A可以把UE1切换或重定向到小区质量最好的小区，或者切换或重定向到优先级高的频点对应的小区；也可以按照其他规则选择切换或重定向的目标小区。
步骤306：基站根据邻区配置信息和预定的优先级将UE重定向到频点优先级高的小区。
步骤307：当小区中的UE全部迁出，进行小区关断。
其中，无业务的UE以重建立的形式重建到其他小区。
图4是禁止UE切入的示意图，示出了上述步骤302的详细实现方式。如图所示：基站禁止UE切入的过程包括：源基站向MME发送切换请求(handover request)消息，然后MME将该切换请求消息发送给目标基站；要进行相应小区关断的目标基站收到该消息后直接回复切换失败消息，禁止UE切入。
图5是本发明避免UE掉话的装置的示意图。如图5所述，包括：发送模块，设置为在进行小区关断前，向所述小区中所有存在业务的UE下发测量请求，指示UE测量邻小区的质量；执行模块，设置为在预定时间内接收到UE上报的满足测量要求的测量报告时，根据所述测量报告的内容将UE切换或者重定向到目标小区。
本发明实施例避免UE掉话的装置还可以包括禁止模块，设置为禁止所述小区之外的UE接入或切换到所述小区。
本发明实施例中提出的避免UE掉话的装置，以及该装置的发送模块、执行模块，以及禁止模块可以通过基站中的处理器来实现，也可以通过具体的逻辑电路实现，也可以通过软件或软硬件结合的方式实现。在实际应用中，所述处理器可以为中央处理器(CPU，Central Processing Unit)、微处理器(MPU，Micro Processor Unit)、数字信号处理器(DSP，Digital Signal Processor)或现场可编程门阵列(FPGA，Field－Programmable Gate Array)等。
应当理解的是，对本领域普通技术人员来说，可以根据本发明的技术方案的说明和具体实施方式做出各种可能的改变或替换，所有这些改变或替换都属于本发明的权利要求的保护范围。
工业实用性
如上所述，本发明实施例提供了一种避免用户设备掉话的方法和装置，具有以下有益效果：在修改PCI或其他原因导致要进行小区删建时，根据小区中UE的具体情况分别进行处理，当小区中的UE都没有业务存在时，直接进行小区删建。短时间内，UE则会重建立到源小区，减少短时间内的信令风暴。若小区中部分UE有业务存在，则将小区中存在业务的UE迁出该小区，没有业务UE则直接重建立，减少UE的掉话，从而提升了用户的体验。

Claims (8)

  1. 一种避免用户设备UE掉话的方法，包括：在进行小区关断前，向所述小区中存在业务的UE下发测量请求，指示UE测量邻小区的质量；在预定时间内接收到UE上报的满足测量要求的测量报告时，根据所述测量报告的内容将UE切换或者重定向到目标小区。
  2. 根据权利要求1所述的方法，其中，所述测量为3GPP协议中规定的A4事件测量。
  3. 根据权利要求1所述的方法，其中，所述方法还包括：在所述进行小区关断前，禁止所述小区之外的UE接入或切换到所述小区。
  4. 根据权利要求3所述的方法，其中，所述禁止所述小区之外的UE接入所述小区包括：将广播消息中第一类系统资讯区块中的小区禁止字段改为禁止，然后进行广播更新；所述禁止所述小区之外的UE切换到所述小区，包括：在接收到UE发送的要切换到所述小区的切换请求时，回复切换失败消息。
  5. 根据权利要求1所述的方法，其中，所述测量请求包含在RRC链接重配消息中。
  6. 根据权利要求1所述的方法，其中，若UE不满足测量要求，或者在定时器超时之前没有上报测量报告，则根据邻区配置信息将UE重定向到优先级高的小区。
  7. 一种避免用户设备UE掉话的装置，包括：发送模块，设置为在进行小区关断前，向所述小区中所有存在业务的UE下发测量请求，指示UE测量邻小区的质量；执行模块，设置为在预定时间内接收到UE上报的满足测量要求的测量报告时，根据所述测量报告的内容将UE切换或者重定向到目标小区。
  8. 根据权利要求7所述的装置，其中，还包括禁止模块，设置为禁止所述小区之外的UE接入或切换到所述小区。
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