WO2012155485A1 - 一种处理终端触发消息的方法及系统 - Google Patents

一种处理终端触发消息的方法及系统 Download PDF

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Publication number
WO2012155485A1
WO2012155485A1 PCT/CN2011/082864 CN2011082864W WO2012155485A1 WO 2012155485 A1 WO2012155485 A1 WO 2012155485A1 CN 2011082864 W CN2011082864 W CN 2011082864W WO 2012155485 A1 WO2012155485 A1 WO 2012155485A1
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WO
WIPO (PCT)
Prior art keywords
terminal
trigger message
network element
trigger
message
Prior art date
Application number
PCT/CN2011/082864
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English (en)
French (fr)
Inventor
杨坤
吴昊
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP11865672.7A priority Critical patent/EP2696619B1/en
Priority to US14/117,303 priority patent/US9445441B2/en
Publication of WO2012155485A1 publication Critical patent/WO2012155485A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/18Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/28Timers or timing mechanisms used in protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18Service support devices; Network management devices

Definitions

  • the present invention relates to a technique for processing a terminal trigger message in the field of mobile communication technologies, and in particular, to a method and system for processing a terminal trigger message.
  • the cellular wireless communication system is mainly composed of a core network (CN, Core Network), an access network (RAN, Radio Access Network), and a terminal.
  • the core network is responsible for non-access stratum transactions, such as terminal location updates, and is the anchor point for the user plane.
  • the access network includes a base station, or a base station and a base station control, and the access network is responsible for access layer transactions (for example, management of radio resources).
  • the base stations may have physical or logical connections according to actual conditions, and the base station may be connected with one or more other ones.
  • the base stations are connected, and each base station can be connected to one or more core network nodes.
  • a user equipment UE, User Equipment
  • a user equipment refers to various devices that can communicate with a cellular wireless communication network, such as a mobile phone or a notebook computer.
  • the mobility management entity (MME) and the GPRS Service Support Node (SGSN) are the units in the core network responsible for managing terminal access control, location information update, and handover, and are responsible for core network-to-terminal non-access layer messages. The ability to control and register terminals to the network.
  • the Home Subscriber Server (HSS) and the Home Subscriber Location Register (HLR) are entities in the core network that are responsible for storing identity information, authentication information, and authorization information of the terminal device.
  • the HSS or HLR can be used to store the identity information of the user and the binding information of the user and the terminal device, or only the identity information of the user (the binding information of the user and the terminal device can be saved by the gateway), or directly save the terminal device.
  • Identity information is also responsible for the user's subscription database, as well as the user's authentication and authorization.
  • the service platform can query user or terminal information from the HSS or HLR.
  • Machine Type Communication interoperable functional entity
  • IWF IWF
  • the MTC IWF is a connected entity between the mobile communication network and the external public network, which can implement functions such as protocol conversion, address inquiry, and information storage.
  • the interoperability function entity is connected to the application server, and the pair can be connected to the HSS/HLR, or the MME/SGSN.
  • HSS/HLR HSS/HLR
  • MME/SGSN MME/SGSN.
  • the monitoring management system needs to obtain monitoring data from the monitoring terminal.
  • the server needs to trigger the terminal to establish a connection with the server, and report the required data. Then, after receiving the trigger message from the server, the terminal needs to be able to respond immediately and establish a connection with the server.
  • the existing solution sends the trigger information to the HSS through the server, and then queries the MME or the SGSN of the serving terminal through the HSS, and sends a trigger message to the MME or the SGSN, and then passes the non-access stratum signaling. Sended to the terminal, the terminal establishes a connection with the server according to the trigger message.
  • the existing network still retains the problem of the terminal triggering message before the terminal trigger message valid timer expires, which inevitably causes waste of network storage resources. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a method and system for processing a terminal trigger message to prevent waste of network storage resources caused by timeout storage of a terminal trigger message.
  • a method for processing a terminal trigger message wherein the control network element of the core network stores the trigger message after receiving a trigger message sent by the machine type communication server to the terminal, where the trigger message is stored for the terminal. The trigger message is removed before the trigger message valid timer expires.
  • the above method can also have the following characteristics:
  • the control network element determines that the reachable timer for the terminal expires and the trigger message valid timer has not expired, the trigger message is removed; or, when the reachable timer for the terminal is up to When the implicit detach timer is turned on, it is determined that the implicit detach timer expires and the trigger message valid timer has not expired, and the trigger message is removed.
  • the above method can also have the following characteristics:
  • the storage network element of the core network sends a trigger response message to the machine type communication server, to notify the machine type communication server that the trigger message of the terminal fails to be sent.
  • the above method can also have the following characteristics:
  • the control network element is a mobility management entity (MME), and the storage network element is a home subscriber server (HSS); or the control network element is a GPRS service support node (SGSN), and the storage network element is a home User Location Register (HLR).
  • MME mobility management entity
  • HSS home subscriber server
  • SGSN GPRS service support node
  • HLR home User Location Register
  • a system for processing a terminal trigger message including a control network element located in a core network, where the control network element includes a storage unit and a processing unit;
  • the control network element stores the trigger message after receiving the trigger message sent by the machine type communication server to the terminal;
  • the processing unit is configured to remove the trigger before the expiration of the trigger message valid timer for the terminal Message.
  • the above system can also have the following characteristics:
  • the processing unit is further configured to: when the reachable timer for the terminal expires and the trigger message valid timer is not expired, remove the trigger message; or, when reachable to the terminal When the timer expires, the implicit detach timer is turned on, and when the implicit detach timer expires and the trigger message valid timer has not expired, the trigger message is removed.
  • the above system can also have the following characteristics:
  • the control network element further includes a sending unit, the system further includes a storage network element located in the core network, and the sending unit is configured to: after the processing unit removes the trigger message, the storage network element via the core network Sending a trigger response message to the machine type communication server, notifying the machine type communication server that the trigger message transmission to the terminal fails.
  • the above system can also have the following characteristics:
  • the storage network element is configured to remove the stored trigger message after receiving the trigger response message.
  • the above system can also have the following characteristics:
  • the control network element is a mobility management entity (MME), and the storage network element is a home subscriber server (HSS); or the control network element is a GPRS service support node (SGSN), and the storage network element is a home User Location Register (HLR).
  • MME mobility management entity
  • HSS home subscriber server
  • SGSN GPRS service support node
  • HLR home User Location Register
  • a method for processing a terminal trigger message includes:
  • the control network element of the core network After receiving the trigger message sent by the machine type communication server to the terminal, the control network element of the core network stores the trigger message of the terminal, and before the valid timer of the trigger message for the terminal expires, The trigger message of the terminal is removed.
  • the step of removing the trigger message of the terminal before the expiration of the triggering message valid timer for the terminal by the control network element includes:
  • the control network element determines that the reachable timer for the terminal is expired and the trigger message of the terminal is not expired, and the trigger message of the terminal is removed; or
  • the implicit detachment timer is started, determining that the implicit detach timer expires and the trigger message of the terminal is not valid. At the time of the period, the trigger message of the terminal is removed.
  • the method further includes: after the control network element removes the trigger message, sending a trigger response message to the machine type communication server via the storage network element of the core network, and notifying the machine type communication server to the terminal The trigger message failed to be sent.
  • the method further includes: after receiving the trigger response message, the storage network element removes the stored trigger message of the terminal.
  • the control network element is a mobility management entity (MME), and the storage network element is a home subscriber server (HSS); or
  • the control network element is a GPRS Service Support Node (SGSN), and the storage network element is a Home User Location Register (HLR).
  • SGSN GPRS Service Support Node
  • HLR Home User Location Register
  • a system for processing a terminal trigger message includes a control network element located in a core network, where the control network element includes a storage unit and a processing unit, where:
  • the storage unit is configured to: store the trigger message after the control network element receives a trigger message sent by the machine type communication server to the terminal;
  • the processing unit is configured to remove the trigger message of the terminal before the expiration of the trigger message valid timer for the terminal.
  • the processing unit is configured to remove the trigger message of the terminal before the expiration of the trigger message valid timer for the terminal in the following manner:
  • the implicit detach timer is started, and when the implicit detach timer expires and the trigger message of the terminal is not expired, the timeout period is removed. The trigger message of the terminal.
  • the control network element further includes a sending unit, where the system further includes a storage network element located in the core network, where:
  • the sending unit is configured to: after the processing unit removes the trigger message of the terminal, send a trigger response message to the machine type communication server via the storage network element of the core network, to notify the machine type communication server The trigger message of the terminal failed to be sent.
  • the storage network element is configured to: after receiving the trigger response message, remove the stored trigger message.
  • the control network element is a mobility management entity (MME), and the storage network element is a home subscriber server (HSS); or
  • the control network element is a GPRS Service Support Node (SGSN), and the storage network element is a Home User Location Register (HLR).
  • SGSN GPRS Service Support Node
  • HLR Home User Location Register
  • control network element removes the stored trigger message before the expiration of the trigger message valid timer for the terminal, thereby saving network storage resources.
  • FIG. 1 is a schematic structural diagram of a system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method according to an embodiment of the present invention. Preferred embodiment of the invention
  • the system for processing a terminal trigger message in the solution includes a control network element 10 located in a core network, where the control network element includes a storage unit 101 and a processing unit 102, where:
  • the storage unit 101 is configured to: receive, at the control network element, a machine type communication server After the trigger message of the terminal, the trigger message for the terminal is stored;
  • Processing unit 102 is arranged to remove the trigger message before the trigger message valid timer for the terminal expires.
  • the processing unit 102 may use the different time points to remove the trigger message before the expiration of the trigger message valid timer for the terminal, which may be, but is not limited to, selecting the reachable timer expiration time point and implicit of the terminal. At the point of expiration of the detachment timer, other time points can be selected in this scheme.
  • the processing unit 102 is further configured to: determine that the reachable timer for the terminal expires and the trigger message valid timer does not expire, remove the trigger message; or, when it is for the terminal When the timer expires, the implicit detach timer is turned on, and when the implicit detach timer expires and the trigger message valid timer has not expired, the trigger message is removed.
  • the control network element further includes a sending unit 103, and the system further includes a storage network element 11 located in the core network, where:
  • the sending unit 103 is configured to: after the processing unit 102 removes the trigger message, send a trigger response message to the machine type communication server via the storage network element 11 of the core network, to notify the machine type communication server of the The trigger message of the terminal failed to be sent.
  • the storage network element 11 is configured to: after receiving the trigger response message, remove the stored trigger message.
  • the storage network element 11 removes the stored trigger message in time according to the indication of the control network element, and can also save the storage resource of the system.
  • the control network element is a mobility management entity (MME), and the storage network element is a home subscriber server (HSS); or
  • the control network element is a GPRS Service Support Node (SGSN), and the storage network element is a Home User Location Register (HLR).
  • SGSN GPRS Service Support Node
  • HLR Home User Location Register
  • Methods for processing terminal trigger messages include:
  • Step 201 The control network element of the core network receives a trigger message sent by the machine type communication server to the terminal, and then stores a trigger message for the terminal.
  • Step 202 The control network element removes the trigger message before expiration of a trigger message valid timer for the terminal.
  • the time point is removed from the trigger message, which may be, but is not limited to, selecting a reachable timer expiration time point and an implicit detachment timer expiration time point of the terminal, and other time points may also be selected in the solution. For example, when the control network element determines that the reachable timer for the terminal expires and the trigger message valid timer has not expired, the trigger message is removed; or, when the reachable timing is for the terminal When the device expires, the implicit detach timer is turned on, and when the implicit detach timer expires and the trigger message valid timer has not expired, the trigger message is removed.
  • the storage network element of the core network sends a trigger response message to the machine type communication server, to notify the machine type communication server that the trigger message of the terminal fails to be sent.
  • the storage network element After receiving the trigger response message, the storage network element removes the stored trigger message.
  • the storage network element timely removes the stored trigger message according to the indication of the control network element, and can also save the storage resources of the system.
  • the control network element is a mobility management entity (MME), and the storage network element is a home subscriber server (HSS);
  • MME mobility management entity
  • HSS home subscriber server
  • control network element is a GPRS Service Support Node (SGSN), and the storage network element is a Home Subscriber Location Register (HLR).
  • SGSN GPRS Service Support Node
  • HLR Home Subscriber Location Register
  • the transmission path of the trigger message in this application example is MTC IWF-HSS-MME.
  • Step 1 After the terminal is powered on and attached to the network, when the signaling connection between the terminal and the current serving MME of the terminal has been released or interrupted, the terminal enters the idle state from the connected state, and the MME opens the terminal reachable timer (Mobile Reachable). Timer).
  • Step 2 When the MTC application server needs to obtain real-time data from the terminal, send a trigger message to the MTC IWF.
  • the trigger message includes the identifier of the terminal, the identifier of the application, the address of the server, the effective time of the trigger indication, etc. (where the identifier of the terminal is an external identifier used outside the network).
  • Step 3 The MTC IWF local database stores one-to-one between the external ID and the internal ID. A mapping table, and a many-to-one correspondence table between the internal identifier and the HSS.
  • the MTC IWF parses the trigger message, reads the terminal identifier in the trigger message, and searches for the internal identifier used in the network corresponding to the terminal identifier in the trigger message according to the mapping table of the external identifier and the internal identifier stored in the local database, and according to the internal
  • the HSS where the terminal is located is identified in the correspondence table between the internal identifier stored in the database and the HSS. After the HSS where the terminal is located is found, a new trigger message is constructed, and the terminal internal identifier is used to replace the external identifier of the terminal in the original trigger message, and is sent to the HSS by triggering the request signaling.
  • Step 4 After the terminal registers with the network, the HSS stores the current serving MME of the terminal. After receiving the trigger message, the HSS searches for the serving MME of the terminal in the locally stored information according to the terminal identifier in the trigger message, and sends the trigger message to the MME by inserting the subscription data (Insert Subscriber Data) signaling.
  • the subscription data Insert Subscriber Data
  • Step 5 After receiving the insertion subscription data signaling sent by the HSS, the MME reads the trigger message included therein, sets the trigger timer T1 locally, and locally sets the value of the timer T1 according to the valid time value in the trigger message. And start the timer, and store the trigger message of the terminal.
  • Step 6 The MME determines to remove the trigger message when the reachable timer for the terminal expires and the trigger message valid timer has not expired.
  • the MME sends a trigger response message to the HSS through the Stream Control Transmission Protocol (SCTP) on the S6a reference point (the reference point between the MME and the HSS) to notify the HSS that the trigger message of the terminal fails to be sent.
  • SCTP Stream Control Transmission Protocol
  • the MME Since the terminal is in an idle state, the MME does not immediately send a trigger message, and waits for the terminal to establish a NAS connection with the MME before sending. In the prior art, if the terminal reachable timer expires and the trigger timer T1 corresponding to the trigger message does not expire, the trigger message is still valid, and the MME still retains the trigger message.
  • Step 7 After receiving the flow control transmission protocol signaling sent by the MME, the HSS reads the trigger response message contained therein and removes the trigger message of the terminal. At the same time, the HSS sends a trigger response signal to the MTC IWF, informing the MTC IWF that the trigger message of the terminal fails to be sent.
  • Step 8 After receiving the trigger response signaling sent by the HSS, the MTC IWF removes the trigger message of the terminal, and sends a trigger response message to the MTC application server, to notify the MTC application server that the trigger message of the terminal fails to be sent.
  • Application example two
  • the transmission path of the trigger message in this application example is MTC IWF-HSS-MME.
  • Steps 1 to 5 correspond to steps 1 to 5 in the first embodiment.
  • Step 6 Because the terminal is in the idle state, the MME does not send the trigger message immediately. It needs to wait for the terminal to establish a NAS connection with the MME before sending. If the terminal reachable timer expires, the network turns on the Implicit Detach Timer.
  • Step 7 When the MME determines that the implicit detach timer expires and the trigger message valid timer T1 has not expired, the trigger message is removed.
  • the MME sends a trigger response message to the HSS through the flow control transmission protocol signaling on the S6a reference point, and notifies the HSS that the trigger message of the terminal fails to be sent.
  • the trigger message is still valid, and the MME still retains the trigger message.
  • Step 8 After receiving the flow control transmission protocol signaling sent by the MME, the HSS reads the trigger response message contained therein and removes the trigger message of the terminal. At the same time, the HSS sends a trigger response signal to the MTC IWF to notify the MTC IWF that the trigger message of the terminal fails to be sent.
  • Step 9 After receiving the trigger response signaling sent by the HSS, the MTC IWF removes the trigger message of the terminal, and sends a trigger response message to the MTC application server to notify the MTC application server that the trigger message of the terminal fails to be sent.
  • the transmission path of the trigger message in this application example is MTC IWF- HLR - SGSN.
  • Step 1 After the terminal is powered on and attached to the network, when the signaling connection between the terminal and the current serving SGSN of the terminal has been released or interrupted, the terminal enters the idle state from the connected state, and the SGSN starts the terminal reachable timer.
  • Step 2 When the MTC application server needs to obtain real-time data from the terminal, the trigger message is sent to the MTC IWF.
  • the trigger message includes the identifier of the terminal, the identifier of the application, the address of the server, the effective time of the trigger indication, etc. (where the identifier of the terminal is an external identifier used outside the network).
  • Step 3 The MTC IWF local database stores a one-to-one mapping table between the external identifier and the internal identifier, and a many-to-one correspondence table between the internal identifier and the HLR.
  • the MTC IWF parses the trigger message, reads the terminal identifier in the trigger message, and searches for the internal identifier used in the network corresponding to the terminal identifier in the trigger message according to the mapping table of the external identifier and the internal identifier stored in the local database, and according to the internal Identifies the HLR where the terminal is located in the corresponding table stored in the database and the HLR. After the HLR of the terminal is found, a new trigger message is constructed, and the terminal internal identifier is used to replace the external identifier of the terminal in the original trigger message, and is sent to the HLR by triggering the request signaling.
  • Step 4 After the terminal registers with the network, the HLR stores the current service SGSN of the terminal. After receiving the trigger message, the HLR searches for the service SGSN of the terminal in the locally stored information according to the terminal identifier in the trigger message, and sends a trigger message to the SGSN by inserting the subscription data signaling.
  • Step 5 After receiving the insertion subscription data signaling sent by the HLR, the SGSN reads the trigger message included therein, sets the trigger timer T2 locally, and locally sets the value of the timer T2 according to the valid time value in the trigger message. And start the timer, and store the trigger message of the terminal.
  • Step 6 The SGSN determines that the reachable timer for the terminal expires and the trigger message valid timer has not expired, the trigger message is removed.
  • the SGSN sends a trigger response message to the HLR through the Mobile Application Part Protocol (MAP) message on the Gr reference point (the reference point between the SGSN and the HLR) to notify the HLR that the trigger message of the terminal fails to be sent.
  • MAP Mobile Application Part Protocol
  • the SGSN does not send a trigger message immediately. It needs to wait for the terminal to establish a NAS connection with the SGSN before sending. Prior to this, if the terminal reachable timer expires and the trigger timer T2 corresponding to the trigger message does not expire, the trigger message is still valid, and the SGSN still retains the trigger message.
  • Step 7 After receiving the mobile application part protocol signaling sent by the SGSN, the HLR reads the trigger response message included therein and removes the trigger message of the terminal. At the same time, the HLR sends a trigger response signal to the MTC IWF to notify the MTC IWF that the trigger message of the terminal fails to be sent.
  • Step 8 After receiving the trigger response signaling sent by the HLR, the MTC IWF removes the trigger message of the terminal, and sends a trigger response message to the MTC application server, to notify the MTC application server that the trigger message of the terminal fails to be sent.
  • the transmission path of the trigger message in this embodiment is MTC IWF - HLR - SGSN.
  • Steps 1 to 5 correspond to steps 1 to 5 in the first embodiment.
  • Step 6 Because the terminal is idle, the SGSN does not send a trigger message immediately. It needs to wait for the terminal to establish a NAS connection with the SGSN before sending. Prior to this, if the terminal reachable timer expires, the network turns on the implicit detach timer.
  • Step 7 When the SGSN determines that the implicit detach timer expires and the trigger message valid timer T2 has not expired, the trigger message is removed.
  • the SGSN sends a trigger response message to the HLR through the mobile application part protocol signaling on the Gr reference point to notify the HLR that the trigger message transmission of the terminal fails.
  • the trigger message is still valid, and the SGSN still retains the trigger message.
  • Step 8 After receiving the mobile application part protocol signaling sent by the SGSN, the HLR reads the trigger response message included therein and removes the trigger message of the terminal. At the same time, the HLR sends a trigger response signal to the MTC IWF to notify the MTC IWF that the trigger message of the terminal fails to be sent.
  • Step 9 After receiving the trigger response signaling sent by the HLR, the MTC IWF removes the trigger message of the terminal, and sends a trigger response message to the MTC application server to notify the MTC application server that the trigger message of the terminal fails to be sent.
  • control network element removes the stored trigger message before the expiration of the trigger message valid timer for the terminal, thereby saving network storage resources. Therefore, the present invention has strong industrial applicability.

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Abstract

一种处理终端触发消息的方法及系统,该方法包括:核心网的控制网元收到机器类型通信服务器发往终端的触发消息后存储所述终端的触发消息,并在针对所述终端的触发消息有效定时器到期之前,移除所述终端的触发消息。本方案中控制网元在针对所述终端的触发消息有效定时器到期之前,及时移除已存储的触发消息,节省网络存储资源。

Description

一种处理终端触发消息的方法及系统
技术领域
本发明涉及到移动通信技术领域中的处理终端触发消息的技术, 尤其涉 及一种处理终端触发消息的方法及系统。
背景技术
蜂窝无线通讯系统主要由核心网(CN, Core Network )、 接入网(RAN, Radio Access Network )和终端组成。 核心网负责非接入层事务, 例如终端位 置更新等, 并且是用户面的锚点。 接入网包括基站, 或者基站以及基站控制, 接入网负责接入层事务(例如无线资源的管理) , 基站之间可以根据实际情 况存在物理或者逻辑上的连接, 基站可以与其它一个或多个基站连接, 并且 每个基站可以和一个或者一个以上的核心网节点连接。终端即用户设备(UE, User Equipment )是指可以和蜂窝无线通讯网络通讯的各种设备, 比如移动电 话或者笔记本电脑等。
移动性管理实体( MME )和 GPRS服务支持节点( SGSN, Serving GPRS Support Node )是核心网中负责管理终端接入控制、位置信息更新以及切换的 单元, 负责核心网到终端的非接入层信令控制和将终端注册到网络的功能。
归属用户服务器 (HSS )和归属用户位置寄存器 (HLR )是核心网中负 责保存终端设备的身份信息、认证信息和授权信息等的实体。根据不同情况, HSS或 HLR可用于保存用户的身份信息及用户和终端设备的绑定信息,或只 保存用户的身份信息 (可由网关保存用户和终端设备的绑定信息) , 或直接 保存终端设备的身份信息。 HSS或 HLR还负责用户的签约数据库, 以及执行 用户的身份验证和授权等。 业务平台可从 HSS或 HLR查询用户或终端信息。
机器类型通信(MTC, Machine Type Communication )互操作功能实体
( IWF ) , 即 MTC IWF是在移动通信网和外部公网之间的一个连接实体, 能 够实现协议转换, 地址查询, 信息保存等功能。 互操作功能实体对外连接应 用服务器, 对内可以连接到 HSS/HLR, 或 MME/SGSN。 通常有某些业务, 比如监控管理系统需要向监控终端获取监控数据, 需 要通过服务器触发终端建立与服务器的连接, 以上报需要的数据。 那么终端 在接收到服务器的触发消息后, 就需要能立即响应, 建立与服务器的连接。 目前为了满足服务器对终端的触发需求, 已有解决方案通过服务器发送触发 信息到 HSS, 然后通过 HSS查询服务终端的 MME或 SGSN, 将触发消息发 送到 MME或 SGSN,然后通过非接入层信令发送到终端,终端根据触发消息 建立与服务器的连接。 现有网络在终端触发消息有效定时器到期之前, 仍会 保留该终端触发消息的问题, 这必然造成了网络存储资源的浪费。 发明内容
本发明要解决的技术问题是提供一种处理终端触发消息的方法及系统, 防止终端触发消息的超时储存导致的网络存储资源浪费。
为了解决上述技术问题, 提供了一种处理终端触发消息的方法, 其中, 核心网的控制网元收到机器类型通信服务器发往终端的触发消息后存储所述 触发消息, 在针对所述终端的触发消息有效定时器到期之前, 移除所述触发 消息。
其中, 上述方法还可以具有以下特点:
所述控制网元判断针对所述终端的可达定时器到期并且所述触发消息有 效定时器未到期时, 移除所述触发消息; 或者, 当针对所述终端的可达定时 器到期时, 开启隐式去附着定时器, 判断所述隐式去附着定时器到期并且所 述触发消息有效定时器未到期时, 移除所述触发消息。
其中, 上述方法还可以具有以下特点:
所述控制网元移除所述触发消息后, 经由核心网的存储网元向所述机器 类型通信服务器发送触发响应消息, 通知所述机器类型通信服务器对所述终 端的触发消息发送失败。
其中, 上述方法还可以具有以下特点:
所述存储网元收到所述触发响应消息后, 移除已存储的所述触发消息。 其中, 上述方法还可以具有以下特点: 所述控制网元为移动性管理实体(MME ) , 所述存储网元为归属用户服 务器(HSS ); 或者, 所述控制网元为 GPRS服务支持节点 (SGSN ) , 所述 存储网元为归属用户位置寄存器(HLR ) 。
为了解决上述技术问题, 还提供了一种处理终端触发消息的系统, 包括 位于核心网的控制网元, 其中, 所述控制网元包括存储单元和处理单元; 所 述存储单元, 用于在所述控制网元收到机器类型通信服务器发往终端的触发 消息后存储所述触发消息; 所述处理单元, 用于在针对所述终端的触发消息 有效定时器到期之前, 移除所述触发消息。
其中, 上述系统还可以具有以下特点:
所述处理单元, 还用于判断针对所述终端的可达定时器到期并且所述触 发消息有效定时器未到期时, 移除所述触发消息; 或者, 当针对所述终端的 可达定时器到期时, 开启隐式去附着定时器, 判断所述隐式去附着定时器到 期并且所述触发消息有效定时器未到期时, 移除所述触发消息。
其中, 上述系统还可以具有以下特点:
所述控制网元还包括发送单元,所述系统还包括位于核心网的存储网元; 所述发送单元, 用于在所述处理单元移除所述触发消息后, 经由核心网 的存储网元向所述机器类型通信服务器发送触发响应消息, 通知所述机器类 型通信服务器对所述终端的触发消息发送失败。
其中, 上述系统还可以具有以下特点:
所述存储网元, 用于在收到所述触发响应消息后, 移除已存储的所述触 发消息。
其中, 上述系统还可以具有以下特点:
所述控制网元为移动性管理实体(MME ) , 所述存储网元为归属用户服 务器(HSS ); 或者, 所述控制网元为 GPRS服务支持节点 (SGSN ) , 所述 存储网元为归属用户位置寄存器(HLR ) 。
一种处理终端触发消息的方法, 包括:
核心网的控制网元收到机器类型通信服务器发往终端的触发消息后存储 所述终端的触发消息, 并在针对所述终端的触发消息有效定时器到期之前, 移除所述终端的触发消息。
其中, 所述控制网元在针对所述终端的触发消息有效定时器到期之前, 移除所述终端的触发消息的步骤包括:
所述控制网元判断针对所述终端的可达定时器到期并且所述终端的触发 消息有效定时器未到期时, 移除所述终端的触发消息; 或者,
所述控制网元判断针对所述终端的可达定时器到期时, 开启隐式去附着 定时器, 判断所述隐式去附着定时器到期并且所述终端的触发消息有效定时 器未到期时, 移除所述终端的触发消息。
该方法还包括: 所述控制网元移除所述触发消息后, 经由所述核心网的 存储网元向所述机器类型通信服务器发送触发响应消息, 通知所述机器类型 通信服务器对所述终端的触发消息发送失败。
该方法还包括: 所述存储网元收到所述触发响应消息后, 移除已存储的 所述终端的触发消息。
其中, 所述控制网元为移动性管理实体(MME ) , 所述存储网元为归属 用户服务器(HSS ) ; 或者,
所述控制网元为 GPRS服务支持节点(SGSN ) , 所述存储网元为归属用 户位置寄存器(HLR ) 。
一种处理终端触发消息的系统, 包括位于核心网的控制网元, 所述控制 网元包括存储单元和处理单元, 其中:
所述存储单元设置成: 在所述控制网元收到机器类型通信服务器发往终 端的触发消息后存储所述触发消息;
所述处理单元设置成:在针对所述终端的触发消息有效定时器到期之前, 移除所述终端的触发消息。
其中, 所述处理单元设置成按照以下方式在针对所述终端的触发消息有 效定时器到期之前, 移除所述终端的触发消息:
判断针对所述终端的可达定时器到期并且所述终端的触发消息有效定时 器未到期时, 移除所述终端的触发消息; 或者, 判断针对所述终端的可达定时器到期时, 开启隐式去附着定时器, 判断 所述隐式去附着定时器到期并且所述终端的触发消息有效定时器未到期时, 移除所述终端的触发消息。
其中, 所述控制网元还包括发送单元, 所述系统还包括位于核心网的存 储网元, 其中:
所述发送单元设置成: 在所述处理单元移除所述终端的触发消息后, 经 由核心网的存储网元向所述机器类型通信服务器发送触发响应消息, 通知所 述机器类型通信服务器对所述终端的触发消息发送失败。
其中, 所述存储网元设置成: 在收到所述触发响应消息后, 移除已存储 的所述触发消息。
其中, 所述控制网元为移动性管理实体(MME ) , 所述存储网元为归属 用户服务器(HSS ) ; 或者,
所述控制网元为 GPRS服务支持节点(SGSN ) , 所述存储网元为归属用 户位置寄存器(HLR ) 。
本方案中控制网元在针对所述终端的触发消息有效定时器到期之前, 及 时移除已存储的触发消息, 节省网络存储资源。 附图概述
图 1为本发明实施例的系统结构示意图;
图 2为本发明实施例的方法流程示意图。 本发明的较佳实施方式
下面将结合附图对本发明实施例的实施进行进一步详细的说明。
本方案中处理终端触发消息的系统, 包括位于核心网的控制网元 10, 所 述控制网元包括存储单元 101和处理单元 102, 其中:
存储单元 101设置成: 在所述控制网元收到机器类型通信服务器发往终 端的触发消息后存储针对所述终端的触发消息;
处理单元 102设置成:在针对所述终端的触发消息有效定时器到期之前, 移除所述触发消息。
处理单元 102可以在针对所述终端的触发消息有效定时器到期之前使用 不同的时间点移除所述触发消息, 可以但不限于选取所述终端的可达定时器 到期时间点和隐式去附着定时器到期时间点, 本方案中还可以选用其它时间 点。 例如, 处理单元 102还设置成: 判断针对所述终端的可达定时器到期并 且所述触发消息有效定时器未到期时, 移除所述触发消息; 或者, 当针对所 述终端的可达定时器到期时, 开启隐式去附着定时器, 判断所述隐式去附着 定时器到期并且所述触发消息有效定时器未到期时, 移除所述触发消息。
所述控制网元还包括发送单元 103 , 所述系统还包括位于核心网的存储 网元 11 , 其中:
发送单元 103设置成: 在所述处理单元 102移除所述触发消息后, 经由 核心网的存储网元 11向所述机器类型通信服务器发送触发响应消息,通知所 述机器类型通信服务器对所述终端的触发消息发送失败。
所述存储网元 11设置成: 在收到所述触发响应消息后, 移除已存储的所 述触发消息。 所述存储网元 11根据控制网元的指示, 及时移除已存储的所述 触发消息, 也可以节省系统的存储资源。
所述控制网元为移动性管理实体(MME ) , 所述存储网元为归属用户服 务器(HSS ) ; 或者,
所述控制网元为 GPRS服务支持节点(SGSN ) , 所述存储网元为归属用 户位置寄存器(HLR ) 。
处理终端触发消息的方法包括:
步骤 201、 核心网的控制网元收到机器类型通信服务器发往终端的触发 消息后存储针对所述终端的触发消息;
步骤 202、 所述控制网元在针对所述终端的触发消息有效定时器到期之 前, 移除所述触发消息。 的时间点移除所述触发消息, 可以但不限于选取所述终端的可达定时器到期 时间点和隐式去附着定时器到期时间点, 本方案中还可以选用其它时间点。 例如, 所述控制网元判断针对所述终端的可达定时器到期并且所述触发消息 有效定时器未到期时, 移除所述触发消息; 或者, 当针对所述终端的可达定 时器到期时, 开启隐式去附着定时器, 判断所述隐式去附着定时器到期并且 所述触发消息有效定时器未到期时, 移除所述触发消息。
所述控制网元移除所述触发消息后, 经由核心网的存储网元向所述机器 类型通信服务器发送触发响应消息, 通知所述机器类型通信服务器对所述终 端的触发消息发送失败。
所述存储网元收到所述触发响应消息后, 移除已存储的所述触发消息。 存储网元根据控制网元的指示, 及时移除已存储的所述触发消息, 也可以节 省系统的存储资源。
所述控制网元为移动性管理实体(MME ) , 所述存储网元为归属用户服 务器(HSS ) ;
或者, 所述控制网元为 GPRS服务支持节点(SGSN ) , 所述存储网元为 归属用户位置寄存器(HLR ) 。
下面通过应用实例进行详细说明。
应用实例一
本应用实例中触发消息的传送路径为 MTC IWF- HSS - MME。
步骤 1: 终端开机并附着到网络后, 当终端和终端当前的服务 MME之间 的信令连接已经被释放或中断, 那么终端从连接状态进入空闲状态, MME 开启终端可达定时器( Mobile Reachable Timer ) 。
步骤 2: 当 MTC应用服务器需要从终端获取实时数据时, 将触发消息发 送到 MTC IWF。该触发消息中包含终端的标识,应用的标识,服务器的地址, 触发指示的有效时间等(这里终端的标识为网络之外使用的外部标识) 。
步骤 3: MTC IWF本地数据库存储了外部标识与内部标识之间的一对一 映射表, 以及内部标识与 HSS之间的多对一对应表。 MTC IWF解析触发消 息, 读取触发消息中的终端标识, 根据本地数据库中存储的外部标识与内部 标识的映射表,查找触发消息中的终端标识对应的在网络中使用的内部标识, 并根据内部标识在数据库中存储的内部标识与 HSS的对应表中查找终端所在 的 HSS。 在查找到终端所在的 HSS后, 构建新的触发消息, 使用终端内部标 识替代原触发消息中的终端外部标识, 并通过触发请求信令发送到 HSS。
步骤 4: 当终端注册到网络后, HSS会存储终端当前的服务 MME。 在接 收到触发消息后, HSS根据触发消息中的终端标识在本地存储的信息中查找 终端的服务 MME, 通过插入签约数据 ( Insert Subscriber Data )信令将触发消 息发送到 MME。
步骤 5: MME在接收到 HSS发送的插入签约数据信令后,读取其中包含 的触发消息, 在本地设置触发定时器 T1 , 根据触发消息中的有效时间值在本 地设置定时器 T1的值, 并启动该定时器, 同时存储该终端的触发消息。
步骤 6: MME判断针对所述终端的可达定时器到期并且所述触发消息有 效定时器未到期时, 移除所述触发消息。 MME通过 S6a参考点 (MME和 HSS之间的参考点)上的流控制传输协议( SCTP, Stream Control Transmission Protocol )信令发送触发响应消息到 HSS, 通知 HSS该终端的触发消息发送 失败。
由于终端处于空闲状态, MME 不会立即发送触发消息, 需等待终端与 MME建立 NAS连接后再进行发送。 现有技术中, 若终端可达定时器到期而 触发消息对应的触发定时器 T1并未到期, 则该触发消息仍然有效, MME依 然保留该触发消息。
步骤 7: HSS在接收到 MME发送的流控制传输协议信令后,读取其中包 含的触发响应消息, 并移除该终端的触发消息。 同时, HSS发送触发响应信 令到 MTC IWF, 通知 MTC IWF该终端的触发消息发送失败。
步骤 8: MTC IWF在接收到 HSS发送的触发响应信令后, 移除该终端的 触发消息, 并发送触发响应消息到 MTC应用服务器, 通知 MTC应用服务器 该终端的触发消息发送失败。 应用实例二
本应用实例中触发消息的传送路径为 MTC IWF- HSS - MME。
步骤 1至步骤 5与具体实施例一中的步骤 1至步骤 5对应相同。
步骤 6: 由于终端处于空闲状态, MME不会立即发送触发消息, 需等待 终端与 MME建立 NAS连接后再进行发送。 若终端可达定时器到期, 则网络 开启隐式去附着定时器( Implicit Detach Timer ) 。
步骤 7: MME判断所述隐式去附着定时器到期并且所述触发消息有效定 时器 T1未到期时, 移除所述触发消息。 MME通过 S6a参考点上的流控制传 输协议信令发送触发响应消息到 HSS ,通知 HSS该终端的触发消息发送失败。
隐式去附着定时器到期而触发消息对应的触发定时器 T1并未到期,则该 触发消息仍然有效, MME依然保留该触发消息。
步骤 8: HSS在接收到 MME发送的流控制传输协议信令后,读取其中包 含的触发响应消息, 并移除该终端的触发消息。 同时, HSS发送触发响应信 令到 MTC IWF , 通知 MTC IWF该终端的触发消息发送失败。
步骤 9: MTC IWF在接收到 HSS发送的触发响应信令后, 移除该终端的 触发消息, 并发送触发响应消息到 MTC应用服务器, 通知 MTC应用服务器 该终端的触发消息发送失败。
应用实例三
本应用实例中触发消息的传送路径为 MTC IWF- HLR - SGSN。
步骤 1 : 终端开机并附着到网络后, 当终端和终端当前的服务 SGSN之 间的信令连接已经被释放或中断, 那么终端从连接状态进入空闲状态, SGSN 开启终端可达定时器。
步骤 2: 当 MTC应用服务器需要从终端获取实时数据时, 将触发消息发 送到 MTC IWF。该触发消息中包含终端的标识,应用的标识,服务器的地址, 触发指示的有效时间等(这里终端的标识为网络之外使用的外部标识) 。 步骤 3: MTC IWF本地数据库存储了外部标识与内部标识之间的一对一 映射表 , 以及内部标识与 HLR之间的多对一对应表。 MTC IWF解析触发消 息, 读取触发消息中的终端标识, 根据本地数据库中存储的外部标识与内部 标识的映射表,查找触发消息中的终端标识对应的在网络中使用的内部标识, 并根据内部标识在数据库中存储的内部标识与 HLR 的对应表中查找终端所 在的 HLR。 在查找到终端所在的 HLR后, 构建新的触发消息, 使用终端内部 标识替代原触发消息中的终端外部标识, 并通过触发请求信令发送到 HLR。
步骤 4: 当终端注册到网络后, HLR会存储终端当前的服务 SGSN。 在 接收到触发消息后, HLR根据触发消息中的终端标识在本地存储的信息中查 找终端的服务 SGSN, 通过插入签约数据信令将触发消息发送到 SGSN。
步骤 5: SGSN在接收到 HLR发送的插入签约数据信令后, 读取其中包 含的触发消息, 在本地设置触发定时器 T2, 根据触发消息中的有效时间值在 本地设置定时器 T2的值, 并启动该定时器, 同时存储该终端的触发消息。
步骤 6: SGSN判断针对所述终端的可达定时器到期并且所述触发消息有 效定时器未到期时,移除所述触发消息。 SGSN通过 Gr参考点( SGSN和 HLR 之间的参考点)上的移动应用部分协议 ( MAP, Mobile Application Part )信 令发送触发响应消息到 HLR, 通知 HLR该终端的触发消息发送失败。
由于终端处于空闲状态, SGSN不会立即发送触发消息, 需等待终端与 SGSN建立 NAS连接后再进行发送。 在此之前, 若终端可达定时器到期而触 发消息对应的触发定时器 T2并未到期, 则该触发消息仍然有效, SGSN依然 保留该触发消息。
步骤 7: HLR在接收到 SGSN发送的移动应用部分协议信令后, 读取其 中包含的触发响应消息, 并移除该终端的触发消息。 同时, HLR发送触发响 应信令到 MTC IWF , 通知 MTC IWF该终端的触发消息发送失败。
步骤 8: MTC IWF在接收到 HLR发送的触发响应信令后,移除该终端的 触发消息, 并发送触发响应消息到 MTC应用服务器, 通知 MTC应用服务器 该终端的触发消息发送失败。 具体实施例四
本具体实施例中触发消息的传送路径为 MTC IWF - HLR - SGSN。
步骤 1至步骤 5与具体实施例一中的步骤 1至步骤 5对应相同。
步骤 6: 由于终端处于空闲状态, SGSN不会立即发送触发消息, 需等待 终端与 SGSN建立 NAS连接后再进行发送。 在此之前, 若终端可达定时器到 期, 则网络开启隐式去附着定时器。
步骤 7: SGSN判断所述隐式去附着定时器到期并且所述触发消息有效定 时器 T2未到期时, 移除所述触发消息。 SGSN通过 Gr参考点上的移动应用 部分协议信令发送触发响应消息到 HLR,通知 HLR该终端的触发消息发送失 败。
若隐式去附着定时器到期而触发消息对应的触发定时器 T2并未到期,则 该触发消息仍然有效, SGSN依然保留该触发消息。
步骤 8: HLR在接收到 SGSN发送的移动应用部分协议信令后, 读取其 中包含的触发响应消息, 并移除该终端的触发消息。 同时, HLR发送触发响 应信令到 MTC IWF , 通知 MTC IWF该终端的触发消息发送失败。
步骤 9: MTC IWF在接收到 HLR发送的触发响应信令后,移除该终端的 触发消息, 并发送触发响应消息到 MTC应用服务器, 通知 MTC应用服务器 该终端的触发消息发送失败。
需要说明的是, 在不冲突的情况下, 本申请中的实施例及实施例中的特 征可以相互任意组合。 当然, 本发明还可有其他多种实施例, 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
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, 所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 /单元可以釆用 硬件的形式实现, 也可以采用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
工业实用性 本方案中控制网元在针对所述终端的触发消息有效定时器到期之前, 及 时移除已存储的触发消息, 节省网络存储资源。 因此本发明具有很强的工业 实用性。

Claims

权 利 要 求 书
1、 一种处理终端触发消息的方法, 包括:
核心网的控制网元收到机器类型通信服务器发往终端的触发消息后存储 所述终端的触发消息, 并在针对所述终端的触发消息有效定时器到期之前, 移除所述终端的触发消息。
2、 如权利要求 1所述的方法, 其中, 所述控制网元在针对所述终端的触 发消息有效定时器到期之前, 移除所述终端的触发消息的步骤包括:
所述控制网元判断针对所述终端的可达定时器到期并且所述终端的触发 消息有效定时器未到期时, 移除所述终端的触发消息; 或者,
所述控制网元判断针对所述终端的可达定时器到期时, 开启隐式去附着 定时器, 判断所述隐式去附着定时器到期并且所述终端的触发消息有效定时 器未到期时, 移除所述终端的触发消息。
3、 如权利要求 1所述的方法, 该方法还包括:
所述控制网元移除所述触发消息后, 经由所述核心网的存储网元向所述 机器类型通信服务器发送触发响应消息, 通知所述机器类型通信服务器对所 述终端的触发消息发送失败。
4、 如权利要求 3所述的方法, 该方法还包括:
所述存储网元收到所述触发响应消息后, 移除已存储的所述终端的触发 消息。
5、 如权利要求 3或 4所述的方法, 其中,
所述控制网元为移动性管理实体(MME ) , 所述存储网元为归属用户服 务器(HSS ) ; 或者,
所述控制网元为 GPRS服务支持节点(SGSN ) , 所述存储网元为归属用 户位置寄存器(HLR ) 。
6、 一种处理终端触发消息的系统, 包括位于核心网的控制网元, 所述控 制网元包括存储单元和处理单元, 其中:
所述存储单元设置成: 在所述控制网元收到机器类型通信服务器发往终 端的触发消息后存储所述触发消息;
所述处理单元设置成:在针对所述终端的触发消息有效定时器到期之前, 移除所述终端的触发消息。
7、 如权利要求 6所述的系统, 其中, 所述处理单元设置成按照以下方式 在针对所述终端的触发消息有效定时器到期之前,移除所述终端的触发消息: 判断针对所述终端的可达定时器到期并且所述终端的触发消息有效定时 器未到期时, 移除所述终端的触发消息; 或者,
判断针对所述终端的可达定时器到期时, 开启隐式去附着定时器, 判断 所述隐式去附着定时器到期并且所述终端的触发消息有效定时器未到期时, 移除所述终端的触发消息。
8、 如权利要求 6所述的系统, 其中, 所述控制网元还包括发送单元, 所 述系统还包括位于核心网的存储网元, 其中:
所述发送单元设置成: 在所述处理单元移除所述终端的触发消息后, 经 由核心网的存储网元向所述机器类型通信服务器发送触发响应消息, 通知所 述机器类型通信服务器对所述终端的触发消息发送失败。
9、 如权利要求 8所述的系统, 其中,
所述存储网元设置成: 在收到所述触发响应消息后, 移除已存储的所述 触发消息。
10、 如权利要求 8或 9所述的系统, 其中,
所述控制网元为移动性管理实体(MME ) , 所述存储网元为归属用户服 务器(HSS ) ; 或者,
所述控制网元为 GPRS服务支持节点(SGSN ) , 所述存储网元为归属用 户位置寄存器(HLR ) 。
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