WO2013067773A1 - 一种终端触发消息有效时间控制方法及系统 - Google Patents

一种终端触发消息有效时间控制方法及系统 Download PDF

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Publication number
WO2013067773A1
WO2013067773A1 PCT/CN2012/070413 CN2012070413W WO2013067773A1 WO 2013067773 A1 WO2013067773 A1 WO 2013067773A1 CN 2012070413 W CN2012070413 W CN 2012070413W WO 2013067773 A1 WO2013067773 A1 WO 2013067773A1
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WIPO (PCT)
Prior art keywords
trigger message
terminal
timer
time value
terminal trigger
Prior art date
Application number
PCT/CN2012/070413
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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 US14/352,172 priority Critical patent/US9319924B2/en
Priority to EP12847126.5A priority patent/EP2779778B1/en
Publication of WO2013067773A1 publication Critical patent/WO2013067773A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the present invention relates to the field of terminal communications, and in particular, to a terminal trigger message effective time control method and system. Background technique
  • FIG. 1 is a schematic structural diagram of a cellular wireless communication system.
  • a cellular wireless communication system is mainly composed of a core network (Core), a radio access network (RAN), and a terminal, where:
  • the core network is responsible for non-access layer transactions, such as terminal location updates, and is an 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 cooperate with one or more other ones.
  • Base stations are connected, and each base station can be connected to one or more core network nodes;
  • a User Equipment is a device that can communicate with a cellular wireless communication network, such as a mobile phone or a laptop.
  • the mobility management unit (Mobility Management Entity (MME) or General Packet Radio Service Technical Support Node (SGSN)) is the unit in the core network responsible for managing terminal access control, location information update, and handover.
  • MME Mobility Management Entity
  • SGSN General Packet Radio Service Technical Support Node
  • the MME or SGSN is responsible for the core network-to-terminal non-access stratum signaling control and the function of registering the terminal to the network.
  • the home subscriber information unit (HSS) or Home Subscriber Location Register (HLR) is an entity in the core network responsible for storing identity information, authentication information, authorization information, and the like of the terminal device. Depending on the situation, the HSS or HLR can be used to store the user's identity information and use 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 may be saved by the gateway), or the identity information of the terminal device may be directly saved.
  • the HSS or HLR 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.
  • the Machine Type Communication Interoperability Function Entity is a connection 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 MME/SGSNo.
  • 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 MTC application server, and report the required data.
  • the terminal needs to be able to respond immediately and establish a connection with the MTC application server.
  • the existing solution sends the trigger information to the HSS through the server, and then sends the trigger message to the MME/SGSN through the MME/SGSN of the HSS query service terminal, and then passes the non-access.
  • the layer signaling is sent to the terminal, and the terminal establishes a connection with the server according to the trigger message.
  • the MME or the SGSN may reject the non-access stratum (NAS) request message initiated by the terminal under the congestion control, and carry the back-off timer in the reject message, so that the terminal is back. No request can be initiated before the expiration of the timer expires.
  • the existing network will remove the corresponding terminal trigger message after the terminal trigger message valid timer expires, the backoff timer of the existing network expires in the terminal. After the terminal trigger message valid timer expires, the corresponding terminal trigger message is removed, causing the terminal to trigger failure.
  • the main purpose of the present invention is to provide a terminal trigger message effective time control method and system, which can improve the terminal trigger success rate.
  • the technical solution of the present invention is achieved as follows:
  • a method for controlling a valid time of a terminal trigger message includes:
  • the mobility management unit receives a terminal trigger message from the machine type communication MTC application server;
  • the terminal trigger message valid timer reconfigures the time value.
  • the method further includes:
  • the mobility management unit notifies the relevant network element to update the time value of the terminal trigger message valid timer.
  • the method further includes: the mobility management unit storing the terminal trigger message.
  • the mobility management unit reconfigures the time value of the effective timer for the terminal to be triggered as follows:
  • the reconfigured trigger message valid timer time value is not less than the time value of the backoff timer.
  • the mobility management unit is a mobility management entity MME or a general packet radio service technology support node SGSN.
  • the related network element includes one or more of the following: a home subscriber information unit, a machine type communication interoperation function entity MTC IWF.
  • the home subscriber information unit is a home subscriber server HSS or a home subscriber location register HLR.
  • a terminal trigger message effective time control system comprising: a receiving unit, a determining unit, and a configuration unit;
  • the receiving unit is configured to receive a terminal trigger message from the MTC application server;
  • the determining unit is configured to determine, in a congestion control scenario, whether a time value of the back-off timer is greater than a time value of the terminal trigger message valid timer received by the receiving unit;
  • the configuration unit is configured to: when the determining unit determines that the time value of the back-off timer is greater than the time value of the terminal trigger message valid timer, re-configure the time value for the terminal trigger message valid timer.
  • the system further includes a notification unit, configured to notify the relevant network element to update the time value of the terminal trigger message valid timer after the configuration unit reconfigures the time value of the terminal trigger message valid timer.
  • the system also includes a storage unit configured to store the terminal trigger message after the receiving unit receives the terminal trigger message from the MTC application server.
  • the configuration unit is configured to: the re-configured time value of the terminal trigger message effective timer is: the re-configured trigger message valid timer time value is not less than the time value of the back-off timer.
  • the mobility management unit is an MME or an SGSN.
  • the related network element includes one or more of the following: a home subscriber information unit, an MTC IWF.
  • the home subscriber information unit is an HSS or an HLR.
  • the mobility management unit receives a terminal trigger message from the machine type communication MTC application server; in the congestion control scenario, the mobility management unit determines that the time value of the backoff timer is greater than the terminal When the time value of the message valid timer is triggered, the terminal trigger message valid timer reconfigures the time value.
  • the invention enables the network to retain the terminal trigger message before the terminal's backoff timer expires, so as to avoid the terminal trigger failure, thereby improving the terminal trigger success rate.
  • FIG. 1 is a schematic structural diagram of a cellular wireless communication system
  • FIG. 1 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to the present invention
  • FIG. 3 is a flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 1 of the present invention. Intention
  • FIG. 4 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 3 of the present invention
  • FIG. 6 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 4 of the present invention.
  • FIG. 7 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 5 of the present invention.
  • FIG. 8 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 6 of the present invention.
  • FIG. 9 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 7 of the present invention.
  • FIG. 10 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 8 of the present invention. detailed description
  • the basic idea of the present invention is that the mobility management unit receives the terminal trigger message from the machine type communication MTC application server.
  • the mobility management unit determines that the time value of the backoff timer is greater than the terminal trigger message effective timer.
  • the time value is the time value of the terminal trigger message valid timer reconfiguration.
  • FIG. 1 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to the present invention. As shown in FIG. 1, the method includes:
  • Step 201 The mobility management unit receives a terminal trigger message from the MTC application server.
  • the mobility management unit may be an MME or an SGSN.
  • the mobility management unit stores the terminal trigger message.
  • Step 202 In the congestion control scenario, the mobility management unit determines whether the time value of the backoff timer is greater than the time value of the terminal trigger message valid timer. If yes, go to step 203; otherwise, execute the existing process.
  • Step 203 The mobility management unit re-configures the time value of the message valid timer for the terminal.
  • the mobility management unit when the time value of the back-off timer is greater than the time value of the trigger message valid timer, the mobility management unit locally reconfigures the terminal-enabled message valid timer for a longer time value, and the re-configured trigger message is valid.
  • the timer time value is not less than the time value of the backoff timer.
  • Step 204 The mobility management unit notifies the relevant network element to update the time value of the terminal trigger message valid timer.
  • the related network element refers to a network element that stores the terminal trigger message, and may include, but is not limited to, one or more of the following: a home subscriber information unit (HSS or HLR), an MTC IWF.
  • HSS home subscriber information unit
  • MTC IWF MTC IWF
  • the MME/SGSN notifies the HSS/HLR, and/or the MTC IWF to update the time value of the terminal trigger message valid timer.
  • the present invention also correspondingly provides a terminal trigger message effective time control system, the system comprising: a receiving unit, a determining unit and a configuration unit;
  • the receiving unit is configured to receive a terminal trigger message from the MTC application server, and the determining unit is configured to determine, in the congestion control scenario, whether the time value of the back-off timer is greater than the terminal trigger message received by the receiving unit is valid.
  • the time value of the timer is configured to determine, in the congestion control scenario, whether the time value of the back-off timer is greater than the terminal trigger message received by the receiving unit is valid.
  • the configuration unit is configured to: when the determining unit determines that the time value of the back-off timer is greater than the time value of the terminal trigger message valid timer, re-configure the time value for the terminal trigger message valid timer.
  • the system further includes a notification unit configured to reconfigure the terminal triggering in the configuration unit After the time value of the effective timer is notified, the relevant network element is notified to update the time value of the terminal trigger message valid timer.
  • the system also includes a storage unit configured to store the terminal trigger message after the receiving unit receives the terminal trigger message from the MTC application server.
  • the configuration unit is configured to: the re-configured time value of the terminal trigger message effective timer is: the re-configured trigger message valid timer time value is not less than the time value of the back-off timer.
  • the mobility management unit is an MME or an SGSN.
  • the related network element includes one or more of the following: a home subscriber information unit, an MTC IWF.
  • the home subscriber information unit is an HSS or an HLR.
  • FIG. 3 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 1 of the present invention. As shown in FIG. 3, the process includes:
  • Step 301 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 an idle state from the connected state, and the network opens the terminal reachable timer (Mobile Reachable). Timer).
  • Step 302 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 303 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 HSS.
  • the MTC IWF stores and parses the trigger message, and reads the terminal identifier in the trigger message.
  • the terminal identifier corresponding to the trigger message is searched for in the network.
  • the internal identifier used, and the HSS where the terminal is located is searched according to the internal identifier stored in the database and the corresponding table of the HSS according to the internal identifier.
  • 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 304 After the terminal registers with the network, the HSS stores the current serving MME of the terminal. After receiving and storing the trigger message, the HSS searches for the service MME of the terminal in the locally stored information according to the terminal identifier in the trigger message, and sends a trigger message to the MME by inserting the subscription data (Insert Subscriber Data) signaling.
  • the subscription data Insert Subscriber Data
  • Step 305 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 sets the valid time value in the trigger message and the current time of the backoff timer. The value is compared. If the effective time is less than the backoff time, the MME locally sets the value of the timer T1 according to the current time value of the backoff timer, and starts the timer, and stores the terminal trigger message.
  • the specific setting mode can set the time value of the T1 timer to be slightly longer than the current time value of the back-off timer, for example, longer than the current time value of the back-off timer by 4 minutes.
  • Step 306 The MME does not immediately send a trigger message because the terminal is under congestion control, and waits for the terminal to establish a NAS connection with the MME after the backoff timer expires.
  • the MME sends a trigger message valid time update message to the HSS by using a stream control transmission protocol (SCTP) on the S6a reference point (the reference point between the MME and the HSS) to notify the HSS to update the validity time of the terminal trigger message.
  • SCTP stream control transmission protocol
  • the message contains the time value of the T1 timer set by the MME.
  • Step 307 After receiving the flow control transmission protocol signaling sent by the MME, the HSS reads the trigger message valid time update message included therein, and updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME. At the same time, the HSS sends a trigger message valid time update message to the MTC IWF, and notifies the MTC IWF to update the terminal trigger message valid time.
  • Step 308 After receiving the trigger message valid time update message sent by the HSS, the MTC IWF updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME. At the same time, the MTC IWF sends a trigger message valid time update message to the MTC application server, and notifies the MTC application server to update the terminal trigger message valid time.
  • Step 309 After receiving the trigger message valid time update message sent by the MTC IWF, the MTC application server updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME.
  • the MTC application server After receiving the trigger message valid time update message sent by the MTC IWF, the MTC application server updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME.
  • FIG. 4 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 2 of the present invention. As shown in FIG. 4, the process includes:
  • Step 401 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 an idle state from the connected state, and the network opens the terminal reachable timer (Mobile Reachable). Timer).
  • Step 402 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 403 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 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 finding the HSS where the terminal is located, construct a new trigger message, replace the external identifier of the terminal in the original trigger message by using the internal identifier of the terminal, and trigger the request message. Order to send to HSS.
  • Step 404 After the terminal registers with the network, the HSS stores the current serving MME of the terminal. After receiving and storing the trigger message, the HSS searches for the service MME of the terminal in the locally stored information according to the terminal identifier in the trigger message, and sends a trigger message to the MME by inserting the subscription data (Insert Subscriber Data) signaling.
  • the subscription data Insert Subscriber Data
  • Step 405 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 sets the valid time value in the trigger message and the current time of the backoff timer. The value is compared. If the effective time is less than the backoff time, the MME locally sets the value of the timer T1 according to the current time value of the backoff timer, and starts the timer, and stores the terminal trigger message.
  • the specific setting mode can set the time value of the T1 timer to be slightly longer than the current time value of the back-off timer, for example, longer than the current time value of the back-off timer by 4 minutes.
  • Step 406 The MME does not immediately send a trigger message because the terminal is under congestion control, and waits for the terminal to establish a NAS connection with the MME after the backoff timer expires.
  • the MME sends a trigger message valid time update message to the HSS by using a stream control transmission protocol (SCTP) on the S6a reference point (the reference point between the MME and the HSS) to notify the HSS to update the validity time of the terminal trigger message.
  • SCTP stream control transmission protocol
  • the message contains the time value of the T1 timer set by the MME.
  • Step 407 After receiving the flow control transmission protocol signaling sent by the MME, the HSS reads the trigger message valid time update message included in the MME, and updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME. At the same time, the HSS sends a trigger message valid time update message to the MTC application server, and notifies the MTC application server to update the terminal trigger message effective time.
  • the HSS may send a trigger message valid time update message to the MTC application server through the MTC IWF, but here, the MTC IWF does not depend on the trigger message valid time.
  • the update message is updated, and only the trigger message valid time update message is sent.
  • Step 408 After receiving the trigger message valid time update message sent by the HSS, the MTC application server updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME.
  • the MTC application server After receiving the trigger message valid time update message sent by the HSS, the MTC application server updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME.
  • FIG. 5 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 3 of the present invention. As shown in FIG. 5, the process includes:
  • Step 501 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 an idle state from the connected state, and the network opens the terminal reachable timer (Mobile Reachable). Timer).
  • Step 502 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 503 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 HSS.
  • the MTC IWF stores and 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 Find the HSS where the terminal is located according to the internal identifier stored in the database and the corresponding table of the HSS. After finding the HSS where the terminal is located, 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 504 After the terminal registers with the network, the HSS stores the current serving MME of the terminal. After receiving the trigger message, the HSS stores the information locally according to the terminal identifier in the trigger message.
  • the serving MME of the medium finding terminal sends a trigger message to the MME by inserting subscription data (Insert Subscriber Data) signaling.
  • subscription data Insert Subscriber Data
  • Step 505 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 sets the valid time value in the trigger message and the current time of the backoff timer. The value is compared, if the effective time is less than the backoff time, then
  • the MME locally sets the value of the timer T1 according to the current time value of the backoff timer, and starts the timer, and stores the terminal trigger message.
  • the specific setting mode can set the time value of the T1 timer to be slightly longer than the current time value of the back-off timer, for example, longer than the current time value of the back-off timer by 4 minutes.
  • Step 506 The MME does not immediately send a trigger message because the terminal is under congestion control, and waits for the terminal to establish a NAS connection with the MME after the backoff timer expires.
  • the MME sends a trigger message valid time update message to the MTC IWF, and notifies the MTC IWF to update the validity time of the terminal trigger message, where the message includes the time value of the T1 timer set by the MME.
  • Step 507 After receiving the trigger message valid time update message sent by the MME, the MTC IWF updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME. At the same time, the MTC IWF sends a trigger message valid time update message to the MTC application server, and informs the MTC application server to update the terminal trigger message valid time.
  • Step 508 After receiving the trigger message valid time update message sent by the MTC IWF, the MTC application server updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME.
  • the MTC application server updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME.
  • FIG. 6 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 4 of the present invention. As shown in FIG. 6, the process includes: Step 601: 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 an idle state from the connected state, and the network opens the terminal reachable timer.
  • Step 602 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 603 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 stores and 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 Find the HLR where the terminal is located according to the internal identifier stored in the database and the corresponding table of the HLR according to the internal identifier. After finding the HLR where the terminal is located, a new trigger message is constructed, and the terminal internal identifier is used to replace the terminal external identifier in the original trigger message, and is sent to the HLR through trigger request signaling.
  • Step 604 After the terminal registers with the network, the HLR stores the current service SGSN of the terminal. After receiving and storing 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 605 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 sets the valid time value in the trigger message and the current time of the backoff timer. The value is compared. If the effective time is less than the backoff time, the SGSN locally sets the value of the timer T2 according to the current time value of the backoff timer, and starts the timer, and stores the terminal trigger message.
  • the specific setting mode can set the time value of the T2 timer to be slightly longer than the current state of the back-off timer.
  • the time value for example, is longer than the current time value of the backoff timer by 4 minutes.
  • Step 606 The SGSN does not immediately send a trigger message because the terminal is under congestion control, and waits for the terminal to establish a NAS connection with the SGSN after the backoff timer expires.
  • the SGSN sends a trigger message valid time update message to the HLR through the Mobile Application Part Protocol (MAP) on the Gr reference point (the reference point between the SGSN and the HLR) to notify the HLR to update the validity time of the terminal trigger message.
  • MAP Mobile Application Part Protocol
  • the message contains the time value of the T2 timer set by the SGSN.
  • Step 607 After receiving the flow control transmission protocol signaling sent by the SGSN, the HLR reads the trigger message valid time update message included in the SGSN, and updates the validity time of the terminal trigger message according to the time value of the T2 timer set by the SGSN. At the same time, the HLR sends a trigger message valid time update message to the MTC IWF, and notifies the MTC IWF to update the validity time of the terminal trigger message.
  • Step 608 After receiving the trigger message valid time update message sent by the HLR, the MTC IWF updates the validity time of the terminal trigger message according to the time value of the T2 timer set by the SGSN. At the same time, the MTC IWF sends a trigger message valid time update message to the MTC application server, and informs the MTC application server to update the terminal trigger message valid time.
  • Step 609 After receiving the trigger message valid time update message sent by the MTC IWF, the MTC application server updates the valid time of the terminal trigger message according to the time value of the T2 timer set by the SGSN.
  • the MTC application server After receiving the trigger message valid time update message sent by the MTC IWF, the MTC application server updates the valid time of the terminal trigger message according to the time value of the T2 timer set by the SGSN.
  • FIG. 7 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 5 of the present invention. As shown in FIG. 7, the process includes:
  • Step 701 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 an idle state from the connected state, and the network opens the terminal reachable timer.
  • Step 702 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 703 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
  • the HLR in which the terminal is located is identified in the correspondence table between the internal identifier stored in the database and the HLR. After finding the HLR where the terminal is located, 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 signal.
  • Step 704 After the terminal registers with the network, the HLR stores the current serving SGSN of the terminal. After receiving and storing 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 705 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 sets the valid time value in the trigger message and the current time of the backoff timer. The value is compared. If the effective time is less than the backoff time, the SGSN locally sets the value of the timer T2 according to the current time value of the backoff timer, and starts the timer, and stores the terminal trigger message.
  • the specific setting mode can set the time value of the T2 timer to be slightly longer than the current time value of the back-off timer, for example, longer than the current time value of the back-off timer by 4 minutes.
  • Step 706 The SGSN does not immediately send a trigger message because the terminal is under congestion control, and waits for the terminal to establish a NAS connection with the SGSN before the backoff timer expires.
  • the SGSN sends a trigger message valid time update message to the HLR through the Mobile Application Part Protocol (MAP) on the Gr reference point (the reference point between the SGSN and the HLR) to notify the HLR to update the validity time of the terminal trigger message.
  • MAP Mobile Application Part Protocol
  • the message contains the time value of the T2 timer set by the SGSN.
  • Step 707 After receiving the flow control transmission protocol signaling sent by the SGSN, the HLR reads the trigger message valid time update message included therein, and updates the validity time of the terminal trigger message according to the time value of the T2 timer set by the SGSN. At the same time, the HLR sends a trigger message valid time update message to the MTC application server, and notifies the MTC application server to update the terminal trigger message valid time.
  • the HLR may send the trigger message valid time update message to the MTC application server through the MTC IWF.
  • the MTC IWF does not update according to the trigger message valid time update message, and only sends the trigger message valid time update message.
  • Step 708 After receiving the trigger message valid time update message sent by the HLR, the MTC application server updates the validity time of the terminal trigger message according to the time value of the T2 timer set by the SGSN.
  • Example 6 After receiving the trigger message valid time update message sent by the HLR, the MTC application server updates the validity time of the terminal trigger message according to the time value of the T2 timer set by the SGSN.
  • FIG. 8 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 6 of the present invention. As shown in FIG. 8, the process includes:
  • Step 801 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 an idle state from the connected state, and the network opens the terminal reachable timer.
  • Step 802 Send a trigger message to the MTC IWF when the MTC application server needs to obtain real-time data from the terminal.
  • 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 external to the network. Identification).
  • Step 803 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 stores and 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 Find the HLR where the terminal is located according to the internal identifier stored in the database and the corresponding table of the HLR according to the internal identifier. After finding the HLR where the terminal is located, a new trigger message is constructed, and the terminal internal identifier is used to replace the terminal external identifier in the original trigger message, and is sent to the HLR through trigger request signaling.
  • Step 804 After the terminal registers with the network, the HLR stores the current serving 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 805 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 sets the valid time value in the trigger message and the current time of the backoff timer. The value is compared, if the effective time is less than the backoff time, then
  • the SGSN locally sets the value of the timer T2 according to the current time value of the backoff timer, and starts the timer, and stores the terminal trigger message.
  • the specific setting mode can set the time value of the T2 timer to be slightly longer than the current time value of the back-off timer, for example, longer than the current time value of the back-off timer by 4 minutes.
  • Step 806 Because the terminal is under congestion control, the SGSN does not immediately send a trigger message, and needs to wait for the terminal to establish a NAS connection with the SGSN after the backoff timer expires.
  • the SGSN sends a trigger message valid time update message to the MTC IWF, and notifies the MTC IWF to update the validity time of the terminal trigger message, where the message includes the time value of the T2 timer set by the SGSN.
  • Step 807 The MTC IWF updates the validity time of the trigger message sent by the SGSN. After the information, the validity time of the terminal trigger message is updated according to the time value of the T2 timer set by the SGSN. At the same time, the MTC IWF sends a trigger message valid time update message to the MTC application server, and notifies the MTC application server to update the terminal trigger message valid time.
  • Step 808 After receiving the trigger message valid time update message sent by the MTC IWF, the MTC application server updates the validity time of the terminal trigger message according to the time value of the ⁇ 2 timer set by the SGSN.
  • the MTC application server After receiving the trigger message valid time update message sent by the MTC IWF, the MTC application server updates the validity time of the terminal trigger message according to the time value of the ⁇ 2 timer set by the SGSN.
  • FIG. 9 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 7 of the present invention. As shown in FIG. 9, the process includes:
  • Step 901 After the terminal is powered on and attached to the network, when the signaling connection between the terminal and the current service port of the terminal has been released or interrupted, the terminal enters an idle state from the connection state, and the network opens the terminal reachable timer (Mobile Reachable). Timer).
  • Step 902 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 903 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 MME.
  • the MTC IWF stores and 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 The MME where the terminal is located is searched according to the internal identifier stored in the database and the correspondence table of the MME according to the internal identifier.
  • Step 904 After receiving the trigger request signaling sent by the MTC I WF, the MME reads the trigger message included therein, sets the trigger timer T1 locally, and sets the valid time value in the trigger message and the current current of the backoff timer. The time value is compared. If the effective time is less than the backoff time, the MME locally sets the value of the timer T1 according to the current time value of the backoff timer, and starts the timer, and stores the terminal trigger message.
  • the specific setting mode can set the time value of the T1 timer to be slightly longer than the current time value of the back-off timer, for example, longer than the current time value of the back-off timer by 4 minutes.
  • Step 905 The MME does not immediately send a trigger message because the terminal is under congestion control, and waits for the terminal to establish a NAS connection with the MME after the backoff timer expires.
  • the MME sends a trigger message valid time update message to the MTC IWF, and notifies the MTC IWF to update the validity time of the terminal trigger message, where the message includes the time value of the T1 timer set by the MME.
  • Step 906 After receiving the trigger message valid time update message sent by the MME, the MTC IWF updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME. At the same time, the MTC IWF sends a trigger message valid time update message to the MTC application server, and informs the MTC application server to update the terminal trigger message valid time.
  • Step 907 After receiving the trigger message valid time update message sent by the MTC IWF, the MTC application server updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME.
  • the MTC application server After receiving the trigger message valid time update message sent by the MTC IWF, the MTC application server updates the validity time of the terminal trigger message according to the time value of the T1 timer set by the MME.
  • FIG. 10 is a schematic flowchart of a method for controlling a valid time of a terminal trigger message according to Embodiment 8 of the present invention. As shown in FIG. 10, the process includes:
  • Step 1001 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 an idle state from the connected state.
  • the network enables the terminal reachable timer.
  • Step 1002 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 1003 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 SGSN.
  • the MTC IWF stores and 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
  • the SGSN where the terminal is located is searched according to the internal identifier stored in the database and the correspondence table of the SGSN according to the internal identifier. After the SGSN 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 SGSN by triggering the request signaling.
  • Step 1004 After receiving the trigger request signaling sent by the MTC IWF, the SGSN reads the trigger message included therein, sets the trigger timer T2 locally, and sets the valid time value in the trigger message and the current time of the backoff timer. The value is compared. If the effective time is less than the backoff time, the SGSN locally sets the value of the timer T2 according to the current time value of the backoff timer, and starts the timer, and stores the terminal trigger message.
  • the specific setting mode can set the time value of the T2 timer to be slightly longer than the current time value of the back-off timer, for example, longer than the current time value of the back-off timer by 4 minutes.
  • Step 1005 Because the terminal is under congestion control, the SGSN does not immediately send a trigger message, and needs to wait for the terminal to establish a NAS connection with the SGSN before the backoff timer expires.
  • the SGSN sends a trigger message valid time update message to the MTC IWF, and notifies the MTC IWF to update the validity time of the terminal trigger message, where the message includes the time value of the T2 timer set by the SGSN.
  • Step 1006 After receiving the trigger message valid time update message sent by the SGSN, the MTC IWF updates the validity time of the terminal trigger message according to the time value of the T2 timer set by the SGSN. At the same time, the MTC IWF sends a trigger message valid time update message to the MTC application server, and notifies the MTC application server to update the terminal trigger message valid time.
  • Step 1007 After receiving the trigger message valid time update message sent by the MTC IWF, the MTC application server updates the validity time of the terminal trigger message according to the time value of the T2 timer set by the SGSN.

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Abstract

本发明公开了一种终端触发消息有效时间控制方法，包括：移动性管理单元接收来自机器类型通信（MTC）应用服务器的终端触发消息；拥塞控制场景下，移动性管理单元判定回退定时器的时间值大于所述终端触发消息有效定时器的时间值，则为所述终端触发消息有效定时器重新配置时间值。本发明还相应地公开了一种终端触发消息有效时间控制系统。本发明使网络在终端的回退定时器到期之前，能够保留该终端触发消息，以避免终端触发的失败，从而提高终端触发的成功率。

Description

一种终端触发消息有效时间控制方法及系统 技术领域
本发明涉及终端通信领域， 尤其涉及一种终端触发消息有效时间控制 方法及系统。 背景技术
图 1为蜂窝无线通讯系统的结构示意图， 如图 1所示， 蜂窝无线通讯 系统主要由核心网 （ Core Network, CN )、 接入网 （ Radio Access Network, RAN )和终端组成， 其中：
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 ( User Equipment, UE )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。
移动性管理单元（移动性管理实体（MME )或者通用分组无线服务技 术服务支持节点 （SGSN ) )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。 MME或 SGSN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。
归属用户信息单元（归属用户服务器（HSS )或者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。
机器类型通信互操作功能实体（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/SGSNo
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 MTC应用服务器的连接，以上报需要的数 据。那么终端在接收到 MTC应用服务器的触发消息后，就需要能立即响应， 建立与 MTC应用服务器的连接。 目前， 为了满足 MTC应用服务器对终端 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/SGSN, 将触发消息发送到 MME/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。
在现有方案中， MME或 SGSN可以拒绝处于拥塞控制下的终端发起的 非接入层 （NAS )请求消息， 并在拒绝消息中携带回退定时器 （Back-off Timer ), 使得终端在回退定时器到期之前不能发起任何请求， 但是， 由于 现有网络在终端触发消息有效定时器到期之后会移除相应的终端触发消 息， 所以， 现有网络在终端的回退定时器到期之前而终端触发消息有效定 时器到期之后， 即会移除相应的终端触发消息的问题， 从而造成终端触发 失败。 发明内容
有鉴于此， 本发明的主要目的在于提供一种终端触发消息有效时间控 制方法及系统， 能够提高终端触发成功率。 为达到上述目的， 本发明的技术方案是这样实现的：
一种终端触发消息有效时间控制方法， 包括：
移动性管理单元接收来自机器类型通信 MTC应用服务器的终端触发 消息；
拥塞控制场景下， 移动性管理单元判定回退定时器的时间值大于所述 终端触发消息有效定时器的时间值， 则为所述终端触发消息有效定时器重 新配置时间值。
所述移动性管理单元重新配置所述终端触发消息有效定时器的时间值 后， 该方法还包括：
移动性管理单元通知相关网元更新所述终端触发消息有效定时器的时 间值。
所述移动性管理单元接收来自 MTC应用服务器的终端触发消息后，该 方法还包括： 移动性管理单元存储所述终端触发消息。
所述移动性管理单元为所述终端触发消息有效定时器重新配置时间值 为： 重新配置的触发消息有效定时器时间值不小于所述回退定时器的时间 值。
所述移动性管理单元为移动性管理实体 MME 或通用分组无线服务技 术服务支持节点 SGSN。
所述相关网元包括以下一项或多项： 归属用户信息单元、 机器类型通 信互操作功能实体 MTC IWF。
所述归属用户信息单元为归属用户服务器 HSS或归属用户位置寄存器 HLR。
一种终端触发消息有效时间控制系统， 包括： 接收单元、 判断单元和 配置单元； 其中，
所述接收单元， 设置为接收来自 MTC应用服务器的终端触发消息； 所述判断单元， 设置为在拥塞控制场景下， 判断回退定时器的时间值 是否大于接收单元接收的所述终端触发消息有效定时器的时间值；
所述配置单元， 设置为在判断单元判定回退定时器的时间值大于所述 终端触发消息有效定时器的时间值时， 为所述终端触发消息有效定时器重 新配置时间值。
该系统还包括通知单元， 设置为在配置单元重新配置所述终端触发消 息有效定时器的时间值后， 通知相关网元更新所述终端触发消息有效定时 器的时间值。
该系统还包括存储单元，设置为在接收单元接收来自 MTC应用服务器 的终端触发消息后， 存储所述终端触发消息。
所述配置单元为所述终端触发消息有效定时器重新配置时间值为： 重 新配置的触发消息有效定时器时间值不小于所述回退定时器的时间值。
所述移动性管理单元为 MME或 SGSN。
所述相关网元包括以下一项或多项： 归属用户信息单元、 MTC IWF。 所述归属用户信息单元为 HSS或 HLR。
本发明终端触发消息有效时间控制方法及系统， 移动性管理单元接收 来自机器类型通信 MTC应用服务器的终端触发消息； 拥塞控制场景下， 移 动性管理单元判定回退定时器的时间值大于所述终端触发消息有效定时器 的时间值， 则为所述终端触发消息有效定时器重新配置时间值。 本发明使 网络在终端的回退定时器到期之前， 能够保留该终端触发消息， 以避免终 端触发的失败， 从而提高终端触发成功率。 附图说明
图 1为蜂窝无线通讯系统的结构示意图；
图 1为本发明终端触发消息有效时间控制方法流程示意图；
图 3为本发明实施例 1所述终端触发消息有效时间控制方法的流程示 意图；
图 4为本发明实施例 2所述终端触发消息有效时间控制方法的流程示 意图；
图 5为本发明实施例 3所述终端触发消息有效时间控制方法的流程示 意图；
图 6为本发明实施例 4所述终端触发消息有效时间控制方法的流程示 意图；
图 7为本发明实施例 5所述终端触发消息有效时间控制方法的流程示 意图；
图 8为本发明实施例 6所述终端触发消息有效时间控制方法的流程示 意图。
图 9为本发明实施例 7所述终端触发消息有效时间控制方法的流程示 意图。
图 10为本发明实施例 8所述终端触发消息有效时间控制方法的流程示 意图。 具体实施方式
本发明的基本思想是：移动性管理单元接收来自机器类型通信 MTC应 用服务器的终端触发消息； 拥塞控制场景下， 移动性管理单元判定回退定 时器的时间值大于所述终端触发消息有效定时器的时间值， 则为所述终端 触发消息有效定时器重新配置时间值。
图 1为本发明终端触发消息有效时间控制方法流程示意图， 如图 1所 示， 该方法包括：
步驟 201 :移动性管理单元接收来自 MTC应用服务器的终端触发消息。 这里， 所述移动性管理单元可以为 MME或 SGSN。
一般情况下， MTC应用服务器发送终端触发消息到移动性管理单元后， 移动性管理单元会存储该终端触发消息。
步驟 202: 拥塞控制场景下， 移动性管理单元判断回退定时器的时间值 是否大于所述终端触发消息有效定时器的时间值， 如果是， 执行步驟 203; 否则， 执行现有流程。
步驟 203:移动性管理单元为所述终端触发消息有效定时器重新配置时 间值。
这里， 当回退定时器的时间值大于触发消息有效定时器的时间值时， 移动性管理单元在本地为终端触发消息有效定时器重新配置较长的时间 值， 所述重新配置的触发消息有效定时器时间值不小于所述回退定时器的 时间值。
步驟 204:移动性管理单元通知相关网元更新所述终端触发消息有效定 时器的时间值。
这里， 所述相关网元指存储了该终端触发消息的网元， 可以包括但不 限于以下一项或多项： 归属用户信息单元（HSS或者 HLR )、 MTC IWF。
MME/SGSN会通知 HSS/HLR,和 /或 MTC IWF更新该终端触发消息有 效定时器的时间值。
本发明还相应地提出了一种终端触发消息有效时间控制系统， 该系统 包括： 接收单元、 判断单元和配置单元； 其中，
所述接收单元， 设置为接收来自 MTC应用服务器的终端触发消息； 所述判断单元， 设置为在拥塞控制场景下， 判断回退定时器的时间值 是否大于接收单元接收的所述终端触发消息有效定时器的时间值；
所述配置单元， 设置为在判断单元判定回退定时器的时间值大于所述 终端触发消息有效定时器的时间值时， 为所述终端触发消息有效定时器重 新配置时间值。
该系统还包括通知单元， 设置为在配置单元重新配置所述终端触发消 息有效定时器的时间值后， 通知相关网元更新所述终端触发消息有效定时 器的时间值。
该系统还包括存储单元，设置为在接收单元接收来自 MTC应用服务器 的终端触发消息后， 存储所述终端触发消息。
所述配置单元为所述终端触发消息有效定时器重新配置时间值为： 重 新配置的触发消息有效定时器时间值不小于所述回退定时器的时间值。
所述移动性管理单元为 MME或 SGSN。
所述相关网元包括以下一项或多项： 归属用户信息单元、 MTC IWF。 所述归属用户信息单元为 HSS或 HLR。
下面结合具体实施例对本发明的技术方案作进一步详细描述。
实施例 1
本实施例中， MTC IWF和 HSS中会存储终端触发消息， 图 3为本发明 实施例 1所述终端触发消息有效时间控制方法的流程示意图， 如图 3所示， 该流程包括：
步驟 301、 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， 网络开启终端可达定时器（ Mobile Reachable Timer )。
步驟 302、 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）。
步驟 303、 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存储并 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。
步驟 304、 当终端注册到网络后， HSS会存储终端当前的服务 MME。 在接收并存储触发消息后， 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。
步驟 305、 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 , 并将触发消息中的有效时间 值与回退定时器的当前时间值进行比较， 若有效时间小于回退时间， 则 MME根据回退定时器的当前时间值在本地设置定时器 T1的值， 并启动该 定时器， 同时存储该终端触发消息。
具体设置方式可将 T1定时器的时间值设置为稍长于回退定时器的当前 时间值， 例如长于回退定时器当前时间值 4分钟。
步驟 306、 由于终端处于拥塞控制下， MME不会立即发送触发消息， 需等待终端在回退定时器到期时与 MME建立 NAS连接后再进行发送。
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 )信令发送触发消息有效 时间更新消息到 HSS, 通知 HSS更新该终端触发消息有效时间， 消息中包 含 MME设置的 T1定时器的时间值。
步驟 307、 HSS在接收到 MME发送的流控制传输协议信令后， 读取其 中包含的触发消息有效时间更新消息， 并根据 MME设置的 T1定时器的时 间值更新该终端触发消息有效时间。 同时， HSS发送触发消息有效时间更 新消息到 MTC IWF, 通知 MTC IWF更新该终端触发消息有效时间。 步驟 308、 MTC IWF在接收到 HSS发送的触发消息有效时间更新消息 后， 根据 MME设置的 T1定时器的时间值更新该终端触发消息有效时间。 同时， MTC IWF发送触发消息有效时间更新消息到 MTC应用服务器， 通 知 MTC应用服务器更新该终端触发消息有效时间。
步驟 309、 MTC应用服务器在接收到 MTC IWF发送的触发消息有效 时间更新消息后， 根据 MME设置的 T1定时器的时间值更新该终端触发消 息有效时间。 实施例 2
本实施例中， HSS中会存储终端触发消息， 图 4为本发明实施例 2所 述终端触发消息有效时间控制方法的流程示意图， 如图 4所示， 该流程包 括：
步驟 401、 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， 网络开启终端可达定时器（Mobile Reachable Timer )。
步驟 402、 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）。
步驟 403、 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。
步驟 404、 当终端注册到网络后， HSS会存储终端当前的服务 MME。 在接收并存储触发消息后， 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。
步驟 405、 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 , 并将触发消息中的有效时间 值与回退定时器的当前时间值进行比较， 若有效时间小于回退时间， 则 MME根据回退定时器的当前时间值在本地设置定时器 T1的值， 并启动该 定时器， 同时存储该终端触发消息。
具体设置方式可将 T1定时器的时间值设置为稍长于回退定时器的当前 时间值， 例如长于回退定时器当前时间值 4分钟。
步驟 406、 由于终端处于拥塞控制下， MME不会立即发送触发消息， 需等待终端在回退定时器到期时与 MME建立 NAS连接后再进行发送。
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 )信令发送触发消息有效 时间更新消息到 HSS, 通知 HSS更新该终端触发消息有效时间， 消息中包 含 MME设置的 T1定时器的时间值。
步驟 407、 HSS在接收到 MME发送的流控制传输协议信令后， 读取其 中包含的触发消息有效时间更新消息， 并根据 MME设置的 T1定时器的时 间值更新该终端触发消息有效时间。 同时， HSS发送触发消息有效时间更 新消息到 MTC应用服务器， 通知 MTC应用服务器更新该终端触发消息有 效时间。
需要说明的是， HSS可以通过 MTC IWF将触发消息有效时间更新消息 发送到 MTC应用服务器， 但是， 这里 MTC IWF不根据触发消息有效时间 更新消息进行更新， 仅发送触发消息有效时间更新消息。
步驟 408、 MTC应用服务器在接收到 HSS发送的触发消息有效时间更 新消息后， 根据 MME设置的 T1定时器的时间值更新该终端触发消息有效 时间。 实施例 3
本实施例中， MTC IWF中会存储终端触发消息， 图 5为本发明实施 例 3所述终端触发消息有效时间控制方法的流程示意图， 如图 5所示， 该 流程包括：
步驟 501、 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， 网络开启终端可达定时器（ Mobile Reachable Timer )。
步驟 502、 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）。
步驟 503、 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存储并 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。
步驟 504、 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。
步驟 505、 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 , 并将触发消息中的有效时间 值与回退定时器的当前时间值进行比较， 若有效时间小于回退时间， 则
MME根据回退定时器的当前时间值在本地设置定时器 T1的值， 并启动该 定时器， 同时存储该终端触发消息。
具体设置方式可将 T1定时器的时间值设置为稍长于回退定时器的当前 时间值， 例如长于回退定时器当前时间值 4分钟。
步驟 506、 由于终端处于拥塞控制下， MME不会立即发送触发消息， 需等待终端在回退定时器到期时与 MME建立 NAS连接后再进行发送。
MME发送触发消息有效时间更新消息到 MTC IWF, 通知 MTC IWF 更新该终端触发消息有效时间， 消息中包含 MME设置的 T1定时器的时间 值。
步驟 507、 MTC IWF在接收到 MME发送的触发消息有效时间更新消 息后，根据 MME设置的 T1定时器的时间值更新该终端触发消息有效时间。 同时， MTC IWF发送触发消息有效时间更新消息到 MTC应用服务器， 通 知 MTC应用服务器更新该终端触发消息有效时间。
步驟 508、 MTC应用服务器在接收到 MTC IWF发送的触发消息有效 时间更新消息后， 根据 MME设置的 T1定时器的时间值更新该终端触发消 息有效时间。 实施例 4
本实施例中， MTC IWF和 HLR中会存储终端触发消息， 图 6为本发 明实施例 4所述终端触发消息有效时间控制方法的流程示意图， 如图 6所 示， 该流程包括： 步驟 601、 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， 网络开启终端可达定时器。
步驟 602、 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）。
步驟 603、 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存储 并解析触发消息， 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。
步驟 604、 当终端注册到网络后， HLR会存储终端当前的服务 SGSN。 在接收并存储触发消息后， 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。
步驟 605、 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, 并将触发消息中的有效时 间值与回退定时器的当前时间值进行比较， 若有效时间小于回退时间， 则 SGSN根据回退定时器的当前时间值在本地设置定时器 T2的值， 并启动该 定时器， 同时存储该终端触发消息。
具体设置方式可将 T2定时器的时间值设置为稍长于回退定时器的当前 时间值， 例如长于回退定时器当前时间值 4分钟。
步驟 606、 由于终端处于拥塞控制下， SGSN不会立即发送触发消息， 需等待终端在回退定时器到期时与 SGSN建立 NAS连接后再进行发送。
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 )信令发送触发消息有效时间更新消 息到 HLR,通知 HLR更新该终端触发消息有效时间， 消息中包含 SGSN设 置的 T2定时器的时间值。
步驟 607、 HLR在接收到 SGSN发送的流控制传输协议信令后， 读取 其中包含的触发消息有效时间更新消息，并根据 SGSN设置的 T2定时器的 时间值更新该终端触发消息有效时间。 同时， HLR发送触发消息有效时间 更新消息到 MTC IWF, 通知 MTC IWF更新该终端触发消息有效时间。
步驟 608、 MTC IWF在接收到 HLR发送的触发消息有效时间更新消息 后， 根据 SGSN设置的 T2定时器的时间值更新该终端触发消息有效时间。 同时， MTC IWF发送触发消息有效时间更新消息到 MTC应用服务器， 通 知 MTC应用服务器更新该终端触发消息有效时间。
步驟 609、 MTC应用服务器在接收到 MTC IWF发送的触发消息有效 时间更新消息后，根据 SGSN设置的 T2定时器的时间值更新该终端触发消 息有效时间。 实施例 5
本实施例中， HLR中会存储终端触发消息， 图 7为本发明实施例 5所 述终端触发消息有效时间控制方法的流程示意图， 如图 7所示， 该流程包 括：
步驟 701、 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， 网络开启终端可达定时器。 步驟 702、 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）。
步驟 703、 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。
步驟 704、 当终端注册到网络后， HLR会存储终端当前的服务 SGSN。 在接收并存储触发消息后， 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。
步驟 705、 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, 并将触发消息中的有效时 间值与回退定时器的当前时间值进行比较， 若有效时间小于回退时间， 则 SGSN根据回退定时器的当前时间值在本地设置定时器 T2的值， 并启动该 定时器， 同时存储该终端触发消息。
具体设置方式可将 T2定时器的时间值设置为稍长于回退定时器的当前 时间值， 例如长于回退定时器当前时间值 4分钟。
步驟 706、 由于终端处于拥塞控制下， SGSN不会立即发送触发消息， 需等待终端在回退定时器到期时与 SGSN建立 NAS连接后再进行发送。 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 )信令发送触发消息有效时间更新消 息到 HLR,通知 HLR更新该终端触发消息有效时间， 消息中包含 SGSN设 置的 T2定时器的时间值。
步驟 707、 HLR在接收到 SGSN发送的流控制传输协议信令后， 读取 其中包含的触发消息有效时间更新消息，并根据 SGSN设置的 T2定时器的 时间值更新该终端触发消息有效时间。 同时， HLR发送触发消息有效时间 更新消息到 MTC应用服务器， 通知 MTC应用服务器更新该终端触发消息 有效时间。
需要说明的是， HLR可以通过 MTC IWF将触发消息有效时间更新消 息发送到 MTC应用服务器， 但是， 这里 MTC IWF不根据触发消息有效时 间更新消息进行更新， 仅发送触发消息有效时间更新消息。
步驟 708、 MTC应用服务器在接收到 HLR发送的触发消息有效时间更 新消息后，根据 SGSN设置的 T2定时器的时间值更新该终端触发消息有效 时间。 实施例 6
本实施例中， MTC IWF中会存储终端触发消息， 图 8为本发明实施 例 6所述终端触发消息有效时间控制方法的流程示意图， 如图 8所示， 该 流程包括：
步驟 801、 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， 网络开启终端可达定时器。
步驟 802、 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）。
步驟 803、 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存储 并解析触发消息， 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。
步驟 804、 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。
步驟 805、 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, 并将触发消息中的有效时 间值与回退定时器的当前时间值进行比较， 若有效时间小于回退时间， 则
SGSN根据回退定时器的当前时间值在本地设置定时器 T2的值， 并启动该 定时器， 同时存储该终端触发消息。
具体设置方式可将 T2定时器的时间值设置为稍长于回退定时器的当前 时间值， 例如长于回退定时器当前时间值 4分钟。
步驟 806、 由于终端处于拥塞控制下， SGSN不会立即发送触发消息， 需等待终端在回退定时器到期时与 SGSN建立 NAS连接后再进行发送。
SGSN发送触发消息有效时间更新消息到 MTC IWF, 通知 MTC IWF 更新该终端触发消息有效时间，消息中包含 SGSN设置的 T2定时器的时间 值。
步驟 807、 MTC IWF在接收到 SGSN发送的触发消息有效时间更新消 息后，根据 SGSN设置的 T2定时器的时间值更新该终端触发消息有效时间。 同时， MTC IWF发送触发消息有效时间更新消息到 MTC应用服务器， 通 知 MTC应用服务器更新该终端触发消息有效时间。
步驟 808、 MTC应用服务器在接收到 MTC IWF发送的触发消息有效 时间更新消息后，根据 SGSN设置的 Τ2定时器的时间值更新该终端触发消 息有效时间。 实施例 7
本实施例中， MTC IWF中会存储终端触发消息， 图 9为本发明实施 例 7所述终端触发消息有效时间控制方法的流程示意图， 如图 9所示， 该 流程包括：
步驟 901、 终端开机并附着到网络后， 当终端和终端当前的服务 ΜΜΕ 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， 网络开启终端可达定时器（ Mobile Reachable Timer )。
步驟 902、 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）。
步驟 903、 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 MME之间的多对一对应表。 MTC IWF存储 并解析触发消息， 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 MME 的对应表中查找终端所在的 MME。 在查找到终端所在的 MME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 MME。 步驟 904、 MME在接收到 MTC I WF发送的触发请求信令后， 读取其 中包含的触发消息， 在本地设置触发定时器 T1 , 并将触发消息中的有效时 间值与回退定时器的当前时间值进行比较， 若有效时间小于回退时间， 则 MME根据回退定时器的当前时间值在本地设置定时器 T1的值， 并启动该 定时器， 同时存储该终端触发消息。
具体设置方式可将 T1定时器的时间值设置为稍长于回退定时器的当前 时间值， 例如长于回退定时器当前时间值 4分钟。
步驟 905、 由于终端处于拥塞控制下， MME不会立即发送触发消息， 需等待终端在回退定时器到期时与 MME建立 NAS连接后再进行发送。
MME发送触发消息有效时间更新消息到 MTC IWF, 通知 MTC IWF 更新该终端触发消息有效时间， 消息中包含 MME设置的 T1定时器的时间 值。
步驟 906、 MTC IWF在接收到 MME发送的触发消息有效时间更新消 息后，根据 MME设置的 T1定时器的时间值更新该终端触发消息有效时间。 同时， MTC IWF发送触发消息有效时间更新消息到 MTC应用服务器， 通 知 MTC应用服务器更新该终端触发消息有效时间。
步驟 907、 MTC应用服务器在接收到 MTC IWF发送的触发消息有效 时间更新消息后， 根据 MME设置的 T1定时器的时间值更新该终端触发消 息有效时间。 实施例 8
本实施例中， MTC IWF中会存储终端触发消息， 图 10为本发明实施 例 8所述终端触发消息有效时间控制方法的流程示意图， 如图 10所示， 该 流程包括：
步驟 1001、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， 网络开启终端可达定时器。
步驟 1002、 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）。
步驟 1003、 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 SGSN之间的多对一对应表。 MTC IWF存储 并解析触发消息， 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 SGSN 的对应表中查找终端所在的 SGSN。在查找到终端所在的 SGSN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 SGSN。
步驟 1004、 SGSN在接收到 MTC IWF发送的触发请求信令后，读取其 中包含的触发消息， 在本地设置触发定时器 T2, 并将触发消息中的有效时 间值与回退定时器的当前时间值进行比较， 若有效时间小于回退时间， 则 SGSN根据回退定时器的当前时间值在本地设置定时器 T2的值， 并启动该 定时器， 同时存储该终端触发消息。
具体设置方式可将 T2定时器的时间值设置为稍长于回退定时器的当前 时间值， 例如长于回退定时器当前时间值 4分钟。
步驟 1005、 由于终端处于拥塞控制下， SGSN不会立即发送触发消息， 需等待终端在回退定时器到期时与 SGSN建立 NAS连接后再进行发送。
SGSN发送触发消息有效时间更新消息到 MTC IWF, 通知 MTC IWF 更新该终端触发消息有效时间，消息中包含 SGSN设置的 T2定时器的时间 值。 步驟 1006、MTC IWF在接收到 SGSN发送的触发消息有效时间更新消 息后，根据 SGSN设置的 T2定时器的时间值更新该终端触发消息有效时间。 同时， MTC IWF发送触发消息有效时间更新消息到 MTC应用服务器， 通 知 MTC应用服务器更新该终端触发消息有效时间。
步驟 1007、 MTC应用服务器在接收到 MTC IWF发送的触发消息有效 时间更新消息后，根据 SGSN设置的 T2定时器的时间值更新该终端触发消 息有效时间。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

1、 一种终端触发消息有效时间控制方法， 其中， 该方法包括： 移动性管理单元接收来自机器类型通信 MTC应用服务器的终端触发 消息；
拥塞控制场景下， 移动性管理单元判定回退定时器的时间值大于所述 终端触发消息有效定时器的时间值， 则为所述终端触发消息有效定时器重 新配置时间值。
2、 根据权利要求 1所述的方法， 其中， 所述移动性管理单元重新配置 所述终端触发消息有效定时器的时间值后， 该方法还包括：
移动性管理单元通知相关网元更新所述终端触发消息有效定时器的时 间值。
3、 根据权利要求 1所述的方法， 其中， 所述移动性管理单元接收来自 MTC应用服务器的终端触发消息后， 该方法还包括： 移动性管理单元存储 所述终端触发消息。
4、 根据权利要求 1所述的方法， 其中， 所述移动性管理单元为所述终 端触发消息有效定时器重新配置时间值为： 重新配置的触发消息有效定时 器时间值不小于所述回退定时器的时间值。
5、 根据权利要求 1至 4任一项所述的方法， 其中，
所述移动性管理单元为移动性管理实体 MME 或通用分组无线服务技 术服务支持节点 SGSN。
6、 根据权利要求 2所述的方法， 其中，
所述相关网元包括以下一项或多项： 归属用户信息单元、 机器类型通 信互操作功能实体 MTC IWF。
7、 根据权利要求 6所述的方法， 其中， 所述归属用户信息单元为归属 用户服务器 HSS或归属用户位置寄存器 HLR。
8、 一种终端触发消息有效时间控制系统， 其中， 该系统包括： 接收单 元、 判断单元和配置单元； 其中，
所述接收单元， 设置为接收来自 MTC应用服务器的终端触发消息； 所述判断单元， 设置为在拥塞控制场景下， 判断回退定时器的时间值 是否大于接收单元接收的所述终端触发消息有效定时器的时间值；
所述配置单元， 设置为在判断单元判定回退定时器的时间值大于所述 终端触发消息有效定时器的时间值时， 为所述终端触发消息有效定时器重 新配置时间值。
9、 根据权利要求 8所述的系统， 其中， 该系统还包括通知单元， 设置 为在配置单元重新配置所述终端触发消息有效定时器的时间值后， 通知相 关网元更新所述终端触发消息有效定时器的时间值。
10、 根据权利要求 8所述的系统， 其中， 该系统还包括存储单元， 设 置为在接收单元接收来自 MTC应用服务器的终端触发消息后，存储所述终 端触发消息。
11、 根据权利要求 8 所述的系统， 其中， 所述配置单元为所述终端触 发消息有效定时器重新配置时间值为： 重新配置的触发消息有效定时器时 间值不小于所述回退定时器的时间值。
12、 根据权利要求 8至 11任一项所述的系统， 其中， 所述移动性管理 单元为 MME或 SGSN。
13、 根据权利要求 9所述的系统， 其中， 所述相关网元包括以下一项 或多项： 归属用户信息单元、 MTC IWF。
14、 根据权利要求 13 所述的系统， 其中， 所述归属用户信息单元为 HSS或 HLR。
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EP2779778A1 (en) 2014-09-17
CN103108305B (zh) 2017-11-03
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US9319924B2 (en) 2016-04-19
US20140254383A1 (en) 2014-09-11
EP2779778A4 (en) 2015-11-11

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