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WO2016078377A1 - 寻呼方法、装置和系统 - Google Patents

寻呼方法、装置和系统 Download PDF

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Publication number
WO2016078377A1
WO2016078377A1 PCT/CN2015/079838 CN2015079838W WO2016078377A1 WO 2016078377 A1 WO2016078377 A1 WO 2016078377A1 CN 2015079838 W CN2015079838 W CN 2015079838W WO 2016078377 A1 WO2016078377 A1 WO 2016078377A1
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mme
enb
enbs
paging
range
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PCT/CN2015/079838
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English (en)
French (fr)
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刘合伦
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中兴通讯股份有限公司
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Publication of WO2016078377A1 publication Critical patent/WO2016078377A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/08—User notification, e.g. alerting and paging, for incoming communication, change of service or the like using multi-step notification by increasing the notification area

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  • This paper relates to mobile communication technologies, and more particularly to a paging method, apparatus and system.
  • the MME When paging for each user, the MME needs to send paging messages to a large number of eNBs; In this case, a large number of irrelevant paging messages are also received. As a result, the network and its air interface signaling are huge, which is likely to cause network signaling storms.
  • the paging method in the EPC system is that the MME sends a paging message to all eNBs in the TALIST range, and there is no efficient paging method.
  • the embodiment of the invention provides a paging method and device, which can solve the problem of low paging efficiency in an EPC system.
  • the paging method is provided by the embodiment of the present invention.
  • the method includes: the mobility management entity MME receives the downlink data notification sent by the serving gateway SGW; and the MME sends the MME search to the evolved base station eNB where the user equipment UE is last. Calling a message and paging the UE through the eNB.
  • the MME expanding the paging range includes: sending, by the MME, a paging message to all eNBs in the eNB list in which the UE is located within a first predetermined time, and using the UE in the first reservation All eNBs within the eNB list in time are paging the UE.
  • the method further includes: if the MME does not receive the UE The MME sends a paging message to all eNBs in the tracking area TA where the UE last time, and pages the UE by all eNBs in the last TA of the UE.
  • the method further includes: if the MME does not receive the response information of the UE, the MME And sending, to the eNB, all the eNBs in the TA range of the second predetermined time to send the paging message, and paging, by the eNB, all the eNBs in the TA range in the second predetermined time.
  • the method further includes: if the MME does not receive the UE In response to the information, the MME sends a paging message to all eNBs in the range of the tracking area list TALIST in which the UE is located, and pages all the eNBs in the TALIST range in which the UE is located.
  • the embodiment of the present invention further provides a paging apparatus, which is disposed in a mobility management entity MME, where the apparatus includes: a receiving module, configured to receive a downlink data notification sent by the serving gateway SGW; and a sending module, configured to be to the user equipment
  • the evolved base station eNB in which the UE last time transmits an MME paging message, and pages the UE through the eNB.
  • the device further includes: a recording module, configured to record eNB information of the last time the UE is located before the receiving module receives the downlink data notification sent by the SGW.
  • a recording module configured to record eNB information of the last time the UE is located before the receiving module receives the downlink data notification sent by the SGW.
  • the device further includes: a receiving module, configured to receive the response of the UE
  • the device further includes an expansion module, configured to: after the sending module pages the UE by using the eNB, if the receiving module does not receive the response information of the UE, expand the paging range. .
  • the enlarging module includes: a first enlarging unit, configured to send a paging message to all eNBs in the eNB list in which the UE is located within a first predetermined time, and pass the UE in the first All eNBs within the eNB list within the predetermined time are paging the UE.
  • a first enlarging unit configured to send a paging message to all eNBs in the eNB list in which the UE is located within a first predetermined time, and pass the UE in the first All eNBs within the eNB list within the predetermined time are paging the UE.
  • the enlarging module further includes: a second enlarging unit, configured to: in the range of the eNB list where the first enlarging module is located by the UE in the first predetermined time, all eNBs to the UE After the paging is performed, if the receiving module does not receive the response information of the UE, send a paging message to all eNBs in the tracking area TA where the UE last time, and pass the last TA of the UE. All eNBs in the network page the UE.
  • a second enlarging unit configured to: in the range of the eNB list where the first enlarging module is located by the UE in the first predetermined time, all eNBs to the UE After the paging is performed, if the receiving module does not receive the response information of the UE, send a paging message to all eNBs in the tracking area TA where the UE last time, and pass the last TA of the UE. All
  • the enlarging module further includes: a third enlarging unit, configured to: after the second enlarging unit pages the UE by all the eNBs in the TA where the UE last time, if The receiving module does not receive the response information of the UE, and sends a paging message to all eNBs in the TA range of the UE within the second predetermined time, and the TA is located in the second predetermined time by the UE. All eNBs in the range page the UE.
  • a third enlarging unit configured to: after the second enlarging unit pages the UE by all the eNBs in the TA where the UE last time, if The receiving module does not receive the response information of the UE, and sends a paging message to all eNBs in the TA range of the UE within the second predetermined time, and the TA is located in the second predetermined time by the UE. All eNBs in the range page the UE.
  • the enlarging module further includes: a fourth enlarging unit, configured to perform, by the third eNB, all the eNBs in the TA range of the UE within the second predetermined time by the UE After paging, if the receiving module does not receive the response information of the UE, send a paging message to all eNBs in the tracking area list TALIST where the UE is located, and pass all the TALISTs in which the UE is located. The eNB pages the UE.
  • a fourth enlarging unit configured to perform, by the third eNB, all the eNBs in the TA range of the UE within the second predetermined time by the UE After paging, if the receiving module does not receive the response information of the UE, send a paging message to all eNBs in the tracking area list TALIST where the UE is located, and pass all the TALISTs in which the UE is located. The eNB pages the UE.
  • the embodiment of the present invention further provides a paging system, where the system includes: a serving gateway SGW, configured to send a downlink data notification to the mobility management entity MME; and the mobility management entity MME is configured to record the user UE last.
  • the evolved base station eNB information is located once, and sends an MME paging message to the recorded eNB where the UE last time; and the evolved base station eNB is configured to send an eNB paging message to the UE.
  • the MME includes the paging device described above.
  • the embodiment of the invention further provides a computer readable storage medium storing program instructions, which can be implemented when the program instructions are executed.
  • the mobility management entity MME receives the downlink data notification sent by the serving gateway SGW; the MME sends an MME paging message to the evolved base station eNB where the user UE is last, and the eNB pairs the The UE performs paging; in the EPC system, the MME needs to send a paging message to all eNBs in the TALIST range to page the UE, thereby causing excessive network and air interface signaling and low communication efficiency, and implementing the MME.
  • the recording range is small to large, which reduces the paging signaling amount of the entire network and improves the communication efficiency.
  • FIG. 1 is a flowchart of a paging method according to an embodiment of the present invention.
  • FIG. 2 is a structural block diagram of a paging apparatus according to an embodiment of the present invention.
  • FIG. 3 is a networking diagram of a paging system according to an embodiment of the present invention.
  • FIG. 4 is a paging flow chart of an embodiment of the present invention.
  • FIG. 1 is a flowchart of a paging method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:
  • Step S102 the mobility management entity (MME) receives the downlink data notification sent by the serving gateway (SGW);
  • Step S104 The MME sends an MME paging message to the evolved base station (eNB) where the user equipment (UE) is last, and pages the UE through the eNB.
  • eNB evolved base station
  • UE user equipment
  • the MME receives the downlink data notification sent by the SGW in the foregoing step; the MME sends the The eNB where the UE last time transmits an MME paging message, and pages the UE through the eNB.
  • the method may further include the following step: the MME records the eNB information of the last time the UE is located.
  • the method may further include the following steps: if the MME does not receive the response information of the UE, the MME expands the paging range.
  • the MME expanding the paging range includes: sending, by the MME, a paging message to all eNBs in the eNB list in which the UE is located within the first predetermined time, and using the UE in the first All eNBs within the eNB list within the predetermined time are paging the UE.
  • the MME after the MME advertises the UE by the eNB in the eNB list in the first predetermined time, the MME does not receive the response information of the UE.
  • the MME sends a paging message to all eNBs in the tracking area TA where the UE last time, and pages the UE through all the eNBs in the last TA of the UE.
  • the MME after the MME is paging the UE by all the eNBs in the TA where the UE is last located, if the MME does not receive the response information of the UE, the MME sends the UE to the UE. All eNBs in the TA range within the second predetermined time send a paging message, and all UEs in the TA range of the UE within the second predetermined time are paged.
  • the MME does not receive the response information of the UE by using the eNB in the TA within the second predetermined time.
  • the MME sends a paging message to all eNBs in the range of the tracking area list TALIST where the UE is located, and pages all the eNBs in the TALIST range in which the UE is located.
  • the MME performs paging on the UE by the eNB where the UE is last located.
  • the MME needs to send paging messages to all eNBs in the TALIST range.
  • the paging can be performed on the UE, which leads to the problem of excessive network and air interface signaling and low communication efficiency.
  • the MME performs paging from small to large according to the usage record range of the UE, and reduces the paging signaling amount of the entire network. Improve communication efficiency.
  • a paging device is also provided.
  • the device is configured in the MME, and is configured to implement the foregoing embodiment, and details are not described herein.
  • the devices described in the following embodiments may be implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 2 is a structural block diagram of a paging apparatus according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes:
  • the receiving module 22 is configured to receive a downlink data notification sent by the serving gateway SGW;
  • the sending module 24 is configured to send an MME paging message to the evolved base station eNB where the UE is last, and page the UE by using the eNB.
  • the apparatus further includes: a recording module, configured to record the eNB information of the last time the UE is located before the receiving module 22 receives the downlink data notification sent by the SGW.
  • a recording module configured to record the eNB information of the last time the UE is located before the receiving module 22 receives the downlink data notification sent by the SGW.
  • the receiving module 22 is further configured to receive response information of the UE, where the apparatus further includes an enlarging module, configured to: after the sending module 24 pages the UE by using the eNB, If the receiving module 22 does not receive the response information of the UE, the paging range is expanded.
  • the enlarging module includes: a first enlarging unit, configured to send a paging message to all eNBs in the eNB list in which the UE is located within a first predetermined time, and All eNBs in the eNB list in the first predetermined time period page the UE.
  • the enlarging module further includes: a second enlarging unit, configured to: in the range of the eNB list in which the first enlarging module is located by the UE within the first predetermined time, After the UE performs paging, if the receiving module 22 does not receive the response information of the UE, it sends a paging message to all the eNBs in the tracking area TA where the UE last time, and passes the TA in the last time the UE is located. All eNBs page the UE.
  • a second enlarging unit configured to: in the range of the eNB list in which the first enlarging module is located by the UE within the first predetermined time, After the UE performs paging, if the receiving module 22 does not receive the response information of the UE, it sends a paging message to all the eNBs in the tracking area TA where the UE last time, and passes the TA in the last time the UE is located. All
  • the enlarging module further includes: a third enlarging unit, configured to: after the second enlarging unit pages the UE by all the eNBs in the TA where the UE last time, If the receiving module 22 does not receive the response information of the UE, send a paging message to all eNBs in the TA range of the UE within the second predetermined time, and pass the UE within the TA range of the second predetermined time. All eNBs page the UE.
  • a third enlarging unit configured to: after the second enlarging unit pages the UE by all the eNBs in the TA where the UE last time, If the receiving module 22 does not receive the response information of the UE, send a paging message to all eNBs in the TA range of the UE within the second predetermined time, and pass the UE within the TA range of the second predetermined time. All eNBs page the UE.
  • the enlarging module further includes: a fourth enlarging unit, configured to: in the third enlarging unit, the UE in the TA range of the UE within the second predetermined time by the UE After the paging is performed, if the receiving module 22 does not receive the response information of the UE, it sends a paging message to all eNBs in the tracking area list TALIST where the UE is located, and passes all the eNBs in the TALIST range in which the UE is located. Paging the UE.
  • the MME needs to send a paging message to all eNBs in the TALIST range to page the UE, thereby causing excessive network and air interface signaling and low communication efficiency, and implementing the MME according to the MME.
  • the UE uses the recording range from small to large for paging, which reduces the paging signaling amount of the entire network and improves the communication efficiency.
  • FIG. 3 is a networking diagram of a paging system according to an embodiment of the present invention. As shown in FIG. 3, the system includes:
  • SGW configured to send a downlink data notification to the MME
  • the MME is configured to record the evolved base station eNB information of the last time the user UE is located, and send an MME paging message to the recorded eNB of the last time the UE is located;
  • Set to eNB set to send an eNB paging message to the UE.
  • the SGW, the MME, and the eNB are combined, and in the EPC system, the MME needs to send a paging message to all eNBs in the TALIST range to page the UE, thereby causing excessive network and air interface signaling, and communication efficiency. Too low a problem enables the MME to perform paging from small to large according to the usage range of the UE, which reduces the paging signaling amount of the entire network and improves the communication efficiency.
  • the MME saves location information to each registered UE to the mobility management context information (MM context).
  • MM context mobility management context information
  • 3GPP Third Generation Partnership Project
  • This example also needs to store the following information in the user MM context: the most active eNB (Last eNB), the list of recently active eNBs. (Last eNB List), TA (Last TA) of the last activity, and TA list of the most recent activity (Last TAList).
  • the MME assigns the TALIST to the user and stores it in the MM context information corresponding to the user, corresponding to the Tracking Area List field.
  • the eNB of the current activity of the user is saved in the Last eNB field; the current TA is saved in the Last TAI; The user-assigned TALIST is saved in the Tracking Area List.
  • the eNB When the user performs other service processes, such as the service request Service Request, if the eNB changes, the last eNB in the Last eNB is added to the Last eNB List, and the current eNB of the user is saved in the Last eNB; if the user TA changes, Add the last Last TAI to the Last TAI List and save the current TA to LastTAI.
  • the service request Service Request if the eNB changes, the last eNB in the Last eNB is added to the Last eNB List, and the current eNB of the user is saved in the Last eNB; if the user TA changes, Add the last Last TAI to the Last TAI List and save the current TA to LastTAI.
  • FIG. 4 is a paging flow chart according to an embodiment of the present invention.
  • the paging range is from small to large for paging, and the minimum is eNB granularity.
  • the TALIST assigned by the MME to the user is paged in a small to large range, so that most users can page in a small range, reducing the overall signaling number of the network.
  • the first predetermined time and the second predetermined time may be the same or different. Including the following steps:
  • the MME After the user enters the idle state IDLE state, when the user needs to be paged, the MME first pages the user's last eNB and waits for the user to respond; the MME only performs paging under the last active eNB4 of the user, if If the user is in the range of eNB4, the user responds to the paging, and after receiving the user response, the MME ends the current paging. If the UE does not receive the response, the process proceeds according to step 2).
  • the MME pages in the range of the eNB list in which the user is active for the first predetermined time The MME pages the eNBs that are recently active, such as eNB3 and eNB4, and waits for the UE to respond. If the UE responds, the current search ends. If the UE does not respond, the MME pages in a wider range according to step 3);
  • the MME pages the next active TA of the user, and performs paging to all the eNBs in the TA.
  • the MME pages all the eNBs under the TA1 that the user is actively active. If the UE receives the response, the MME ends the present. Sub-page, if the UE does not respond, continue to expand the paging range according to step 4);
  • the MME pages all the TAs that are active in the second predetermined time of the user, and pages all the eNBs under the TAs. If the UE receives the response, the current paging ends. If the UE does not respond, the MME Step 5) continue to expand the paging range;
  • the MME pages in the range of the user TALIST, and pages all the eNBs in the TALIST range.
  • the MME sends a paging message to all eNBs under the user TALIST (TA1 and TA2), and waits for the UE to respond.
  • the MME needs to send a paging message to all eNBs in the TALIST range to page the UE, resulting in excessive network and air interface signaling and low communication efficiency. Paging from small to large reduces the amount of paging signaling in the network as a whole and improves communication efficiency.

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Abstract

一种寻呼方法、装置和系统，所述寻呼方法包括：移动性管理实体MME接收服务网关SGW发送的下行数据通知；所述MME向用户设备UE最后一次所在的演进型基站eNB发送MME寻呼消息，并通过所述eNB对所述UE进行寻呼。所述寻呼装置设置于移动性管理实体MME，包括：接收模块和发送模块。所述系统包括服务网关SGW、移动性管理实体MME和演进型基站eNB。

Description

寻呼方法、装置和系统 技术领域
本文涉及移动通讯技术，尤其涉及一种寻呼方法、装置和系统。
背景技术
在演进型分组核心网(EPC)系统中，移动性管理实体(MME)主要进行用户移动性管理、会话管理等。当用户注册的时候，MME给用户分配跟踪区列表(TALIST)。根据协议标准，MME对用户的寻呼，需要在TALIST范围内寻呼，即MME需要对TALIST范围内所有演进基站(eNB)下发寻呼消息，进而由eNB再针对小区进行寻呼。通常情况下，跟踪区(TA)及其TALIST的范围比较大，其下eNB个数较多，对每个用户进行寻呼时MME都需要对大量eNB下发寻呼消息；同样对每个eNB而言，也会收到大量的无关的寻呼消息。如此导致网络及其空口信令量巨大，容易造成网络信令风暴。目前移EPC系统中的寻呼方法都是MME对TALIST范围内所有eNB发送寻呼消息，并没有高效率的寻呼方法。
在相关技术中，针对EPC系统中寻呼效率低的问题，目前尚未提出有效的解决方法。
发明内容
本发明实施例提供了一种寻呼方法和装置，能够解决EPC系统中寻呼效率低的问题。
本发明实施例提供的一种寻呼方法，所述方法包括：移动性管理实体MME接收服务网关SGW发送的下行数据通知；所述MME向用户设备UE最后一次所在的演进型基站eNB发送MME寻呼消息，并通过所述eNB对所述UE进行寻呼。
可选地，在所述MME接收SGW发送的下行数据通知之前，所述方法还包括：所述MME记录所述UE最后一次所在的eNB信息。
可选地，在通过所述eNB对所述UE进行寻呼后，所述方法还包括：如果所述MME未接收到所述UE的响应信息，所述MME扩大寻呼范围。
可选地，所述MME扩大寻呼范围包括：所述MME向所述UE在第一预定时间内所在的eNB列表范围内所有eNB发送寻呼消息，并通过所述UE在所述第一预定时间内所在的eNB列表范围内所有eNB对所述UE进行寻呼。
可选地，在通过所述UE在所述第一预定时间内所在的eNB列表范围内所有eNB对所述UE进行寻呼后，所述方法还包括：如果所述MME未接收到所述UE的响应信息，所述MME向所述UE最后一次所在的跟踪区TA里的所有eNB发送寻呼消息，并通过所述UE最后一次所在的TA里的所有eNB对所述UE进行寻呼。
可选地，在通过所述UE最后一次所在的TA里的所有eNB对所述UE进行寻呼后，所述方法还包括：如果所述MME未接收到所述UE的响应信息，所述MME向所述UE在第二预定时间内所在TA范围内所有的eNB发送寻呼消息，并通过所述UE在所述第二预定时间内所在TA范围内所有的eNB对所述UE进行寻呼。
可选地，在通过所述UE在所述第二预定时间内所在TA范围内所有的eNB对所述UE进行寻呼后，所述方法还包括：如果所述MME未接收到所述UE的响应信息，所述MME向所述UE所在的跟踪区列表TALIST范围内所有的eNB发送寻呼消息，并通过所述UE所在的TALIST范围内所有的eNB对所述UE进行寻呼。
本发明实施例还提供了一种寻呼装置，设置于移动性管理实体MME，所述装置包括：接收模块，设置为接收服务网关SGW发送的下行数据通知；以及发送模块，设置为向用户设备UE最后一次所在的演进型基站eNB发送MME寻呼消息，并通过所述eNB对所述UE进行寻呼。
可选地，所述装置还包括：记录模块，其设置为在所述接收模块接收SGW发送的下行数据通知之前，记录所述UE最后一次所在的eNB信息。
可选地，所述的装置还包括：接收模块，还设置为接收所述UE的响应 信息；所述装置还包括扩大模块，其设置为在所述发送模块通过所述eNB对所述UE进行寻呼后，如果所述接收模块未接收到所述UE的响应信息，扩大寻呼范围。
可选地，所述扩大模块包括：第一扩大单元，设置为向所述UE在第一预定时间内所在的eNB列表范围内所有eNB发送寻呼消息，并通过所述UE在所述第一预定时间内所在的eNB列表范围内所有eNB对所述UE进行寻呼。
可选地，所述扩大模块还包括：第二扩大单元，其设置为在所述第一扩大模块通过所述UE在所述第一预定时间内所在的eNB列表范围内所有eNB对所述UE进行寻呼后，如果所述接收模块未接收到所述UE的响应信息，向所述UE最后一次所在的跟踪区TA里的所有eNB发送寻呼消息，并通过所述UE最后一次所在的TA里的所有eNB对所述UE进行寻呼。
可选地，所述扩大模块还包括：第三扩大单元，其设置为在所述第二扩大单元通过所述UE最后一次所在的TA里的所有eNB对所述UE进行寻呼后，如果所述接收模块未接收到所述UE的响应信息，向所述UE在第二预定时间内所在TA范围内所有的eNB发送寻呼消息，并通过所述UE在所述第二预定时间内所在TA范围内所有的eNB对所述UE进行寻呼。
可选地，所述扩大模块还包括：第四扩大单元，其设置为在所述第三扩大单元通过所述UE在所述第二预定时间内所在TA范围内所有的eNB对所述UE进行寻呼后，如果所述接收模块未接收到所述UE的响应信息，向所述UE所在的跟踪区列表TALIST范围内所有的eNB发送寻呼消息，并通过所述UE所在的TALIST范围内所有的eNB对所述UE进行寻呼。
本发明实施例还提供了一种寻呼系统，所述系统包括：服务网关SGW，设置为向移动性管理实体MME发送的下行数据通知；所述移动性管理实体MME，设置为记录用户UE最后一次所在的演进型基站eNB信息，并向记录的所述UE最后一次所在的eNB发送MME寻呼消息；以及所述演进型基站eNB，设置为向所述UE发送eNB寻呼消息。
所述MME包括上述寻呼装置。
本发明实施例还提供一种计算机可读存储介质，存储有程序指令，当该程序指令被执行时可实现上述方法。
通过本发明实施例方案，移动性管理实体MME接收服务网关SGW发送的下行数据通知；所述MME向用户UE最后一次所在的演进型基站eNB发送MME寻呼消息，并通过所述eNB对所述UE进行寻呼；解决在EPC系统中，MME需要对TALIST范围内所有eNB发送寻呼消息才能对UE进行寻呼，从而导致网络和空口信令过多、通讯效率过低的问题，实现了MME根据UE使用记录范围由小到大进行寻呼，减少了网络整体的寻呼信令量，提高了通讯效率。
附图概述
图1是本发明实施例的一种寻呼方法的流程图；
图2是本发明实施例的一种寻呼装置的结构框图；
图3是本发明实施例的一种寻呼系统的组网图；
图4是本发明实施例的寻呼流程图。
本发明的实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例和实施例中的特征可以相互任意组合。
在本实施例中提供了一种寻呼方法，图1是根据本发明实施例的一种寻呼方法的流程图，如图1所示，该流程包括如下步骤：
步骤S102，移动性管理实体(MME)接收服务网关(SGW)发送的下行数据通知；
步骤S104，该MME向用户设备(UE)最后一次所在的演进型基站(eNB)发送MME寻呼消息，并通过该eNB对该UE进行寻呼。
其中，上述步骤中MME接收SGW发送的下行数据通知；该MME向 UE最后一次所在的eNB发送MME寻呼消息，并通过该eNB对该UE进行寻呼。
可选地，在本实施例中，在该MME接收SGW发送的下行数据通知之前，还可包括以下步骤：该MME记录该UE最后一次所在的eNB信息。
可选地，在本实施例中，在该MME通过该eNB对该UE进行寻呼后，还可包括以下步骤：如果该MME未接收到该UE的响应信息，该MME扩大寻呼范围。
可选地，在本实施例中，该MME扩大寻呼范围包括：该MME向该UE在第一预定时间内所在的eNB列表范围内所有eNB发送寻呼消息，并通过该UE在该第一预定时间内所在的eNB列表范围内所有eNB对该UE进行寻呼。
可选地，在本实施例中，在该MME通过该UE在该第一预定时间内所在的eNB列表范围内所有eNB对该UE进行寻呼后，如果该MME未接收到该UE的响应信息，该MME向该UE最后一次所在的跟踪区TA里的所有eNB发送寻呼消息，并通过该UE最后一次所在的TA里的所有eNB对该UE进行寻呼。
可选地，在本实施例中，在该MME通过该UE最后一次所在的TA里的所有eNB对该UE进行寻呼后，如果该MME未接收到该UE的响应信息，该MME向该UE在第二预定时间内所在TA范围内所有的eNB发送寻呼消息，并通过该UE在该第二预定时间内所在TA范围内所有的eNB对该UE进行寻呼。
可选地，在本实施例中，在该MME通过该UE在该第二预定时间内所在TA范围内所有的eNB对该UE进行寻呼后，如果该MME未接收到该UE的响应信息，该MME向该UE所在的跟踪区列表TALIST范围内所有的eNB发送寻呼消息，并通过该UE所在的TALIST范围内所有的eNB对该UE进行寻呼。
通过上述步骤，MME通过UE最后一次所在的eNB对该UE进行寻呼，解决在EPC系统中，MME需要对TALIST范围内所有eNB发送寻呼消息才 能对UE进行寻呼，从而导致网络和空口信令过多、通讯效率过低的问题，实现了MME根据UE使用记录范围由小到大进行寻呼，减少了网络整体的寻呼信令量，提高了通讯效率。
在本实施例中还提供了寻呼装置，该装置设置于MME，设置为实现上述实施例，已经进行过说明的不再赘述。尽管以下实施例所描述的装置可以以软件来实现，但是硬件、或者软件和硬件的组合的实现也是可能并被构想的。
图2是根据本发明实施例的一种寻呼装置的结构框图，如图2所示，该装置包括：
接收模块22，设置为接收服务网关SGW发送的下行数据通知；以及
发送模块24，设置为向UE最后一次所在的演进型基站eNB发送MME寻呼消息，并通过该eNB对该UE进行寻呼。
可选地，在本实施例中，该装置还包括：记录模块，其设置为在该接收模块22接收SGW发送的下行数据通知之前，记录该UE最后一次所在的eNB信息。
可选地，在本实施例中，接收模块22，还设置为接收该UE的响应信息；该装置还包括扩大模块，其设置为在该发送模块24通过该eNB对该UE进行寻呼后，如果该接收模块22未接收到该UE的响应信息，扩大寻呼范围。
可选地，在本实施例中，该扩大模块包括：第一扩大单元，其设置为向该UE在第一预定时间内所在的eNB列表范围内所有eNB发送寻呼消息，并通过该UE在该第一预定时间内所在的eNB列表范围内所有eNB对该UE进行寻呼。
可选地，在本实施例中，该扩大模块还包括：第二扩大单元，其设置为在该第一扩大模块通过该UE在该第一预定时间内所在的eNB列表范围内所有eNB对该UE进行寻呼后，如果该接收模块22未接收到该UE的响应信息，向该UE最后一次所在的跟踪区TA里的所有eNB发送寻呼消息，并通过该UE最后一次所在的TA里的所有eNB对该UE进行寻呼。
可选地，在本实施例中，该扩大模块还包括：第三扩大单元，其设置为在该第二扩大单元通过该UE最后一次所在的TA里的所有eNB对该UE进行寻呼后，如果该接收模块22未接收到该UE的响应信息，向该UE在第二预定时间内所在TA范围内所有的eNB发送寻呼消息，并通过该UE在该第二预定时间内所在TA范围内所有的eNB对该UE进行寻呼。
可选地，在本实施例中，该扩大模块还包括：第四扩大单元，其设置为在该第三扩大单元通过该UE在该第二预定时间内所在TA范围内所有的eNB对该UE进行寻呼后，如果该接收模块22未接收到该UE的响应信息，向该UE所在的跟踪区列表TALIST范围内所有的eNB发送寻呼消息，并通过该UE所在的TALIST范围内所有的eNB对该UE进行寻呼。
通过上述装置，解决在EPC系统中，MME需要对TALIST范围内所有eNB发送寻呼消息才能对UE进行寻呼，从而导致网络和空口信令过多、通讯效率过低的问题，实现了MME根据UE使用记录范围由小到大进行寻呼，减少了网络整体的寻呼信令量，提高了通讯效率。
在本实施例中提供了一种寻呼系统，图3是根据本发明实施例的一种寻呼系统的组网图，如图3所示，该系统包括：
SGW，设置为向MME发送的下行数据通知；
MME，设置为记录用户UE最后一次所在的演进型基站eNB信息，并向记录的该UE最后一次所在的eNB发送MME寻呼消息；以及
设置为eNB，设置为向该UE发送eNB寻呼消息。
通过上述系统，将SGW、MME和eNB相结合，解决在EPC系统中，MME需要对TALIST范围内所有eNB发送寻呼消息才能对UE进行寻呼，从而导致网络和空口信令过多、通讯效率过低的问题，实现了MME根据UE使用记录范围由小到大进行寻呼，减少了网络整体的寻呼信令量，提高了通讯效率。
下面结合应用示例对上述实施例进行说明。
应用示例一：
MME为每个注册的UE保存位置信息到移动性管理上下文信息(MM context)中。目前第三代合作伙伴计划(3GPP)已经定义了Tracking Area List信息，本示例为了寻呼需要，还需要在用户MM上下文中保存如下信息：最近活动的eNB(Last eNB)、最近活动的eNB列表(Last eNB List)、最近一次活动的TA(Last TA)、最近活动的TA列表(Last TAList)。
参考标准协议3GPP TS 23.4015.7.2MME并添加信息如下：
MME MM and EPS bearer Contexts
Figure PCTCN2015079838-appb-000001
用户注册attach的时候，MME给用户分配TALIST携带给用户，同时保存在该用户对应的MM context信息中，对应Tracking Area List字段。将用户本次活动的eNB，保存在Last eNB字段中；当前TA保存在Last TAI中；给 用户分配的TALIST保存在Tracking Area List中。
用户进行其他业务流程的时候，比如服务请求Service Request，如果eNB变化，将Last eNB中的上一次的eNB添加到Last eNB List中，将用户当前eNB保存在Last eNB中；如果用户TA发生变化，则将上次的Last TAI添加到Last TAI List中，同时将当前TA保存到LastTAI中。
图4是根据本发明实施例的寻呼流程图，如图4所示寻呼范围由小到大进行寻呼，最小为eNB粒度。范围为最后一次活动的eNB→第一预定时间内活动的eNB列表(几个eNB)→最后一次活动的TA→第二预定时间内活动的TA列表(近期活动的几个TA,TALIST范围内)→MME分配给用户的TALIST，按照有小到大的范围寻呼，使多数用户在小范围内寻呼到，减少网络整体信令数。第一预定时间和第二预定时间可以相同也可以不同。包括如下步骤：
1)、用户进入空闲态IDLE态之后，当需要寻呼用户的时候，MME先对用户最后一次的eNB进行寻呼，等待用户响应；MME仅在用户最后一次活动的eNB4下进行寻呼，如果该用户在eNB4范围下，则用户对寻呼进行响应，MME收到用户响应之后，结束本次寻呼，如果没有收到UE响应，则按照步骤2)进行；
2)、MME在用户第一预定时间内活动的eNB列表范围内寻呼，MME对用户近期活动的eNB进行寻呼，比如eNB3和eNB4，并等待UE响应，如果UE有响应则结束本次寻呼，如果UE没有响应，则MME按照步骤3)在更大范围内寻呼；
3)、MME在用户最后一次活动的TA下寻呼，向该TA下的所有eNB进行寻呼，MME对用户最近活动的TA1下的所有eNB进行寻呼，如果收到UE响应，则结束本次寻呼，如果UE没有响应，则按照步骤4)继续扩大寻呼范围；
4)、MME在用户第二预定时间内活动的所有TA下寻呼，向这些TA下的所有eNB进行寻呼，如果收到UE响应，则结束本次寻呼，如果UE没有响应，则按照步骤5)继续扩大寻呼范围；
5)、MME在用户TALIST范围内寻呼，向TALIST范围内所有eNB进行寻呼，MME对用户TALIST(TA1和TA2)下的所有eNB发送寻呼消息，并等待UE响应。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成，上述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地，上述实施例中的各模块/单元可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。本发明实施例不限制于任何特定形式的硬件和软件的结合。
工业实用性
解决在EPC系统中，MME需要对TALIST范围内所有eNB发送寻呼消息才能对UE进行寻呼，从而导致网络和空口信令过多、通讯效率过低的问题，实现了MME根据UE使用记录范围由小到大进行寻呼，减少了网络整体的寻呼信令量，提高了通讯效率。

Claims (17)

  1. 一种寻呼方法，所述方法包括：
    移动性管理实体MME接收服务网关SGW发送的下行数据通知；
    所述MME向用户设备UE最后一次所在的演进型基站eNB发送MME寻呼消息，并通过所述eNB对所述UE进行寻呼。
  2. 根据权利要求1所述的方法，
    在所述MME接收SGW发送的下行数据通知之前，所述方法还包括：所述MME记录所述UE最后一次所在的eNB信息。
  3. 根据权利要求1或2所述的方法，
    在通过所述eNB对所述UE进行寻呼后，所述方法还包括：如果所述MME未接收到所述UE的响应信息，所述MME扩大寻呼范围。
  4. 根据权利要求3所述的方法，其中，所述MME扩大寻呼范围包括：
    所述MME向所述UE在第一预定时间内所在的eNB列表范围内所有eNB发送寻呼消息，并通过所述UE在所述第一预定时间内所在的eNB列表范围内所有eNB对所述UE进行寻呼。
  5. 根据权利要求4所述的方法，
    在通过所述UE在所述第一预定时间内所在的eNB列表范围内所有eNB对所述UE进行寻呼后，所述方法还包括：如果所述MME未接收到所述UE的响应信息，所述MME向所述UE最后一次所在的跟踪区TA里的所有eNB发送寻呼消息，并通过所述UE最后一次所在的TA里的所有eNB对所述UE进行寻呼。
  6. 根据权利要求5所述的方法，
    在通过所述UE最后一次所在的TA里的所有eNB对所述UE进行寻呼后，所述方法还包括：如果所述MME未接收到所述UE的响应信息，所述MME向所述UE在第二预定时间内所在TA范围内所有的eNB发送寻呼消息，并通过所述UE在所述第二预定时间内所在TA范围内所有的eNB对所述UE进行寻呼。
  7. 根据权利要求6所述的方法，
    在通过所述UE在所述第二预定时间内所在TA范围内所有的eNB对所述UE进行寻呼后，所述方法还包括：如果所述MME未接收到所述UE的响应信息，所述MME向所述UE所在的跟踪区列表TALIST范围内所有的eNB发送寻呼消息，并通过所述UE所在的TALIST范围内所有的eNB对所述UE进行寻呼。
  8. 一种寻呼装置，设置于移动性管理实体MME，所述装置包括：
    接收模块，设置为接收服务网关SGW发送的下行数据通知；以及
    发送模块，设置为向用户设备UE最后一次所在的演进型基站eNB发送MME寻呼消息，并通过所述eNB对所述UE进行寻呼。
  9. 根据权利要求8所述的装置，所述装置还包括：
    记录模块，其设置为在所述接收模块接收SGW发送的下行数据通知之前，记录所述UE最后一次所在的eNB信息。
  10. 根据权利要求8或9所述的装置，
    所述接收模块，还设置为接收所述UE的响应信息；
    所述装置还包括：扩大模块，其设置为在所述发送模块通过所述eNB对所述UE进行寻呼后，如果所述接收模块未接收到所述UE的响应信息，扩大寻呼范围。
  11. 根据权利要求10所述的装置，所述扩大模块包括：
    第一扩大单元，其设置为向所述UE在第一预定时间内所在的eNB列表范围内所有eNB发送寻呼消息，并通过所述UE在所述第一预定时间内所在的eNB列表范围内所有eNB对所述UE进行寻呼。
  12. 根据权利要求11所述的装置，所述扩大模块还包括：
    第二扩大单元，其设置为在所述第一扩大模块通过所述UE在所述第一预定时间内所在的eNB列表范围内所有eNB对所述UE进行寻呼后，如果所述接收模块未接收到所述UE的响应信息，向所述UE最后一次所在的跟踪区TA里的所有eNB发送寻呼消息，并通过所述UE最后一次所在的TA里的所 有eNB对所述UE进行寻呼。
  13. 根据权利要求12所述的装置，所述扩大模块还包括：
    第三扩大单元，其设置为在所述第二扩大单元通过所述UE最后一次所在的TA里的所有eNB对所述UE进行寻呼后，如果所述接收模块未接收到所述UE的响应信息，向所述UE在第二预定时间内所在TA范围内所有的eNB发送寻呼消息，并通过所述UE在所述第二预定时间内所在TA范围内所有的eNB对所述UE进行寻呼。
  14. 根据权利要求13所述的装置，所述扩大模块还包括：
    第四扩大单元，其设置为在所述第三扩大单元通过所述UE在所述第二预定时间内所在TA范围内所有的eNB对所述UE进行寻呼后，如果所述接收模块未接收到所述UE的响应信息，向所述UE所在的跟踪区列表TALIST范围内所有的eNB发送寻呼消息，并通过所述UE所在的TALIST范围内所有的eNB对所述UE进行寻呼。
  15. 一种寻呼系统，所述系统包括：
    服务网关SGW，设置为向移动性管理实体MME发送的下行数据通知；
    所述移动性管理实体MME，设置为记录用户UE最后一次所在的演进型基站eNB信息，并向记录的所述UE最后一次所在的eNB发送MME寻呼消息；以及
    所述演进型基站eNB，设置为向所述UE发送eNB寻呼消息。
  16. 根据权利要求15所述的系统，其中，所述MME包括如权利要求8-14中任一权利要求所述的寻呼装置。
  17. 一种计算机可读存储介质，存储有程序指令，当该程序指令被执行时可实现权利要求1-7任一项所述的方法。
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