WO2011063762A1 - 保证业务连接的方法、网络设备和用户设备 - Google Patents

保证业务连接的方法、网络设备和用户设备 Download PDF

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Publication number
WO2011063762A1
WO2011063762A1 PCT/CN2010/079210 CN2010079210W WO2011063762A1 WO 2011063762 A1 WO2011063762 A1 WO 2011063762A1 CN 2010079210 W CN2010079210 W CN 2010079210W WO 2011063762 A1 WO2011063762 A1 WO 2011063762A1
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WIPO (PCT)
Prior art keywords
user equipment
mobility management
network element
management network
initiate
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Application number
PCT/CN2010/079210
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English (en)
French (fr)
Inventor
周汉
吴问付
Original Assignee
华为技术有限公司
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.)
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Publication of WO2011063762A1 publication Critical patent/WO2011063762A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, a network device, and a user equipment for ensuring a service connection.
  • 3GPP 3rd Generation Partnership Project
  • TLE Long Term Evolution
  • the new mobile communication network architecture makes the architecture flatter than the existing General Packet Radio Service (GPRS)/Universal Mobile Telecommunication System (UMTS) and retains the packet domain. It is called the Evolved Packet System (EPS).
  • EPS Evolved Packet System
  • the core network of the existing EPS mainly includes: Mobility Management Entity (MME), Serving Gateway (S-GW), and Packet Data Network Gateway (P-GW).
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • P-GW Packet Data Network Gateway
  • MME non-access stratum
  • S-GW is responsible for local mobility
  • the anchor point, the mobility anchor inside the 3GPP system, and the lawful interception related information, the P-GW is responsible for policy enforcement, charging, and lawful interception related functions.
  • the above EPS network can be applied to human to human (H2H) and machine to machine (M2M) communication applications, where H2H communication requires human participation, while M2M communication refers to unattended participation.
  • H2H human to human
  • M2M machine to machine
  • the mobility management network element deletes the context information of the user equipment attached thereto, and the gateway device, ie, the S-
  • the GW and the P-GW detect that the mobility management network element is faulty or reset, the Context information of the user equipment attached to the mobility management network element is also deleted. Therefore, the GW and the P-GW are attached to the mobility management network.
  • the service connection of the user equipment on the element will be interrupted, and the user equipment needs to re-establish the service connection to realize the new industry.
  • the user equipment generally re-establishes the service connection by manually resetting the user equipment.
  • the mobility management network element and the gateway device may The context information of the user equipment attached to the mobility management network element is deleted, so that the service connection of the user equipment is interrupted, and the user equipment must be manually reset before the user equipment can re-establish the service connection, and the user equipment is highly reliable.
  • a service connection for example, a VIP user in an H2H communication application, or a security monitoring user device in an M2M communication application, which requires a highly reliable service connection.
  • the service connection cannot be quickly restored for the user, resulting in This type of high reliability service is not available.
  • the embodiments of the present invention provide a method for ensuring a service connection, a network device, and a user equipment, which can quickly and effectively restore the service connection of the user equipment, and ensure the validity and reliability of the service connection of the user equipment.
  • An embodiment of the present invention provides a method for ensuring a service connection, including:
  • the user equipment that needs to initiate the service establishment is attached to the mobility management network element according to the feature information of the user equipment, and the user equipment that needs to initiate the service establishment is notified to initiate service establishment.
  • An embodiment of the present invention provides a method for ensuring a service connection, including:
  • the access network device learns that the mobility management network element is faulty or reset.
  • the access network device broadcasts the broadcast message carrying the identifier of the mobility management network element, so that after the user equipment receives the broadcast message, if the identifier of the mobility management network element in the broadcast message and mobility management in the user equipment If the identifiers of the NEs are the same, the service establishment is initiated.
  • the embodiment of the invention provides a network device, including:
  • the fault information obtaining module is configured to learn that the mobility management network element is faulty or reset.
  • a feature information acquiring module configured to learn feature information of a user equipment attached to the mobility management network element
  • the notification module is configured to learn, according to the feature information of the user equipment, the user equipment that is required to initiate the service establishment, and notify the user equipment that needs to initiate the service establishment to initiate service establishment.
  • the embodiment of the invention provides a network device, including:
  • the fault information obtaining module is configured to learn that the mobility management network element is faulty or reset.
  • a broadcast module configured to broadcast a broadcast message carrying the mobility management network element identifier, so that after the user equipment receives the broadcast message, if the identifier of the mobility management network element in the broadcast message and the mobility in the user equipment If the IDs of the management NEs are the same, the service establishment is initiated.
  • An embodiment of the present invention provides a user equipment, including:
  • a message receiving module configured to receive a notification message sent by the network device, where the notification message is that the network device needs to initiate service establishment to be attached to the mobility management network element when the mobility management network element is faulty or reset.
  • User equipment initiates service establishment message;
  • the service connection module is configured to initiate service establishment according to the notification message.
  • the user equipment when the mobility management network element is faulty or reset, the user equipment is notified to establish a service connection, so that the user equipment that needs to initiate the service establishment can quickly establish a service connection, and restore the user equipment service connection with the high reliability service connection.
  • the validity of the service connection guarantees the reliability of the user equipment with reliable business requirements.
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a method for ensuring a service connection according to the present invention
  • Embodiment 2 is a schematic flowchart of Embodiment 2 of a method for ensuring a service connection according to the present invention
  • Embodiment 3 is a schematic flowchart of Embodiment 3 of a method for ensuring a service connection according to the present invention
  • Embodiment 4 is a schematic flowchart of Embodiment 4 of a method for ensuring a service connection according to the present invention
  • FIG. 5 is a schematic flowchart of Embodiment 5 of a method for ensuring a service connection according to the present invention
  • Embodiment 6 is a schematic flowchart of Embodiment 6 of a method for ensuring a service connection according to the present invention
  • Embodiment 7 is a schematic structural diagram of Embodiment 1 of a network device according to the present invention.
  • FIG. 8 is a schematic structural diagram of a feature information acquiring module in Embodiment 2 of a network device according to the present invention.
  • FIG. 8 is a schematic structural diagram of a notification module in Embodiment 2 of a network device according to the present invention.
  • FIG. 9 is a schematic structural diagram of a feature information acquiring module in the third embodiment of the network device according to the present invention.
  • FIG. 9 is a schematic structural diagram of a notification module in the third embodiment of the network device according to the present invention.
  • 10 is a schematic structural diagram of Embodiment 4 of a network device according to the present invention
  • 11 is a schematic structural diagram of a broadcast module in Embodiment 5 of a network device according to the present invention
  • FIG. 12 is a schematic structural diagram of an embodiment of a user equipment according to the present invention. detailed description
  • FIG. 1 is a schematic flowchart diagram of Embodiment 1 of a method for ensuring a service connection according to the present invention. Specifically, as shown in FIG. 1, the embodiment may include the following steps:
  • Step 101 The network device learns that the mobility management network element is faulty or reset.
  • Step 102 The network device learns the feature information of the user equipment that is attached to the mobility management network element.
  • Step 103 The network device learns, according to the feature information of the user equipment, that the service establishment needs to be initiated on the mobility management network element. The user equipment notifies the user equipment that needs to initiate service establishment to initiate service establishment.
  • the network device may be a gateway device, for example, a GGSN, an S-GW, or a P-GW, or may be an access network device, for example, a BSC, an RC, or an eNodeB; the mobility management network element. It can be SGSN or MME.
  • the user equipment that needs to initiate service establishment that is attached to the faulty or reset mobility management network element may be determined according to the feature information of the user equipment, and the need to initiate the notification is initiated.
  • the user equipment established by the service initiates service establishment, establishes a new service connection, and ensures the validity of the service connection of the user equipment that needs to initiate the service connection.
  • the user equipment that needs to initiate a service connection may be a user equipment with high reliability service requirements in the system, or a VIP user equipment, or a user equipment that plays a role in control; and the feature information of the user equipment (MTC Feature) It may be information indicating that the user equipment is applied for high reliability service requirements, or information indicating that the user equipment is a VIP user.
  • MTC Feature feature information of the user equipment
  • the user equipment initiates service establishment may refer to the user equipment initiating an attach procedure or the user equipment initiates a PDN connection establishment process or the user equipment initiates an activation PDP context procedure.
  • the user equipment that needs to initiate the service establishment is determined according to the feature information of the user equipment, and the user equipment that needs to initiate the service establishment is notified to initiate service establishment, and a new service connection is established.
  • User equipment that needs to initiate service establishment can quickly establish a service connection, and the recovery is highly reliable. The validity of the service connection of the user equipment of the sexual service, and the service connection of the user equipment of the high reliability service requirement.
  • FIG. 2 is a schematic flowchart diagram of Embodiment 2 of a method for ensuring a service connection according to the present invention.
  • the method of this embodiment may determine that the mobility management network element is faulty or reset by the gateway device, and the gateway device notifies the user equipment to establish a service connection.
  • the method of this embodiment may include the following steps:
  • Step 201 The gateway device learns that the first mobility management network element is faulty or reset.
  • Step A1 The gateway device sends a detection message to the first mobility management network element.
  • Step A2 When the gateway device does not receive the detection response message corresponding to the detection message fed back by the first mobility management network element, the gateway device learns that the first mobility management network element is faulty; or
  • Step A3 When the gateway device receives the detection response message corresponding to the detection message fed back by the first mobility management network element, and the detection response message indicates that the first mobility management network element is reset, the gateway device learns the first mobility management. The NE is reset.
  • the gateway device in this embodiment can learn that the first mobility management network element is faulty or reset by using the Echo detection message, and the detection process is: the gateway device sends a detection message to the first mobility management network element, such as Echo, for the first time.
  • the first mobility management network element responds to the detection message, returns a detection response message, such as Echo Response, and indicates a counter (counter) in the returned detection response message, and sets the counter to an initial value.
  • the gateway device periodically sends a detection message to the first mobility management network element. If the first mobility management network element is running normally, the first mobility management network element returns a response message and keeps the detection response message.
  • the counter value is unchanged; if the first mobility management network element is reset, the first mobility management network element will change the counter value in the detection response message, for example, the counter value is increased by 1, so that the gateway device can receive according to the received Detecting the counter value in the response message to know whether the first mobility management network element is reset, that is, the network
  • the gateway device can be informed of the first mobility management network element is reset.
  • the detection response message of the first mobility management network element is not received within a certain period of time after the gateway device sends the detection message, the first mobility management network element may be notified that the first mobility management network element is faulty. It can be understood by those skilled in the art that the embodiment of the present invention is not limited to the foregoing manner, and the gateway device may also know that the first mobility management network element is faulty or reset by other means.
  • Step 202 The gateway device learns characteristic information of the user equipment attached to the first mobility management network element that is faulty or reset.
  • the gateway device learns the user equipment attached to the mobility management network element. Specifically, the gateway device can be rooted According to the context information of the user equipment, the user equipment that is managed by the user equipment is the user equipment attached to the faulty or reset first mobility management network element, for example, the fault information may be included according to the context information of the user equipment.
  • the information of the first mobility management network element is reset, it can be known that the user equipment is a user equipment attached to the first mobility management network element.
  • the gateway device can obtain the feature information of the user equipment attached to the first mobility management network element in the following manners, which are respectively described as follows:
  • the gateway device can obtain the feature information of the user equipment from the context information of the user equipment.
  • the feature information of the user equipment may be set in the context information of the user equipment of the gateway device, and the feature information of the user equipment may be notified to the gateway device by the mobility management network element, and saved by the gateway device in the context information of the user equipment.
  • the feature information of the user equipment may be signed in the subscription data, and the mobility management network element may obtain the feature information of the user equipment from the subscription data, and may carry the obtained feature information of the user equipment in the session request message, such as Create.
  • the session request or the Create PDP Request is sent to the gateway device, so that the gateway device can save the feature information of the user equipment obtained from the session request message in the context information of the user equipment.
  • the acquiring, by the mobility management network element, the feature information of the user equipment from the subscription data may be: in an attach procedure or a tracking area update or a routing area update process, to a Home Location Register (HLR) or a home subscription server.
  • HLR Home Location Register
  • HSS Home Subscriber Server
  • the gateway device can obtain the feature information of the user equipment corresponding to the user equipment identification information of the user equipment from the configuration information of the gateway device.
  • the gateway device may be configured with the feature information corresponding to the identification information of the user equipment, so that after determining the user equipment attached to the first mobility management network element, the gateway device may be based on the identification information of the user equipment.
  • the configuration information is used to search for feature information of the user equipment corresponding to the identification information of the user equipment.
  • the identification information of the user equipment may be that the mobility management network element carries the identifier information of the user equipment to the gateway device in the session management message. Specifically, the mobility management network element may perform an attach process or a tracking area update or a location area.
  • the session management message such as the Create Session Request or the Create PDP Request, carries the identification information of the user equipment attached thereto, and sends the identification information to the gateway device.
  • the gateway device can learn from the configuration information of the gateway device that the group identifier corresponding to the user equipment belongs to Characteristic information of the user equipment.
  • the gateway device may be configured with the feature information corresponding to the group identifier to which the user equipment belongs, so that the gateway device determines the group identifier to which the user equipment belongs after determining the user equipment attached to the first mobility management network element. Find the feature information of the user equipment corresponding to it in the configuration information.
  • the group identifier to which the user equipment belongs may be that the mobility management network element carries the group identifier to which the user equipment belongs to the gateway device in the session management message. Specifically, the mobility management network element may be in the attaching process or the tracking area.
  • the session management message carries the group identifier of the user equipment attached thereto, and sends the group identifier to the gateway device, and the gateway device obtains the user equipment according to the group identifier to which the user equipment belongs. Feature information.
  • the group identifier to which the user equipment belongs is the identifier of the user equipment group or group to which the user equipment belongs, the identifier of the M2M industry user (MTC User) to which the user equipment belongs, and the M2M application subscription user to which the user equipment belongs ( The identifier of the MTC Subscriber or other information indicating the group or industry user ID.
  • the access point name can identify the group, user group, or industry user to which the user equipment belongs, and the APN is the user.
  • the identity information of the master device can also be used as the group to which the user device belongs.
  • the group identifier described by the user equipment may be the identifier information of the master device.
  • the mobility management network element performs the attach process or the tracking area update or the location area update process or the handover process
  • the industry identifier to which the user equipment belongs may be carried in the session management message to the gateway device, and the gateway device may The feature information of the user equipment is obtained according to the obtained group identifier to which the user equipment belongs and configuration information thereon.
  • the feature information of the user equipment in this embodiment may be that the user equipment needs a higher service connection requirement.
  • the user equipment that needs a higher service connection requirement may be a user equipment with high reliability requirements in the system, or a system. VIP users in etc.
  • Step 203 The gateway device learns, according to the feature information of the user equipment, the user equipment that needs to initiate service establishment, which is attached to the first mobility management network element device, and sends an indication message to the normally running second mobility management network element, where the indication message is sent.
  • the user equipment information of the user equipment that needs to initiate the service establishment is carried.
  • the user equipment required for the service establishment needs to be the user equipment that needs to initiate service establishment. Therefore, when the gateway device obtains the feature information of the user equipment, the user equipment of the user equipment needs to be determined according to the characteristic information of the user equipment.
  • the indication message may be sent to the second mobility management network element that is in normal operation, and the user equipment information of the user equipment that needs to initiate service establishment is carried in the indication message, such as user setting. Identification information.
  • the gateway device in this embodiment may be a GGSN, and the indication message may be a packet data, a PDU Notification Request, and the packet data message notification request message.
  • the identifier information of the user equipment that needs to be triggered is included, such as the IMSI.
  • the packet data packet notification request message may further include location information of the user equipment that needs to be triggered, such as a Routing Area Identity.
  • the location information of the user equipment may be stored in the context information of the gateway device; and in the EUTRAN system, the gateway device is the SGW, and the indication message sent by the gateway device may be a downlink data packet notification message (Downlink Data)
  • the downlink data packet notification message includes the identifier information of the user equipment that needs to be triggered, such as the IMSI, and the downlink data packet notification message may further include the location of the user equipment that needs to be triggered.
  • Information such as a Tracking Area List, where the user equipment is Gateway configuration information can be stored on the user equipment device context information.
  • the indication message sent by the gateway device may be other messages, or newly added messages, in addition to the packet data message notification request message or the downlink data message notification message.
  • the message carries the identification information of the user equipment that needs to initiate service establishment, and also carries the location information of the user equipment that needs to initiate service establishment.
  • the second mobility management network element may also return an indication response message to the gateway device.
  • the second mobility management network element may respond and return an indication response message.
  • the indication message is a packet data message notification request message
  • the returned indication response message may be a packet data message notification response message (PDU Notification Response); if the indication message is a downlink data message notification message
  • the returned indication response message may be a Downlink Date Notification Ack.
  • Step 204 The second mobility management network element initiates an IMSI page to the user equipment that needs to initiate the service establishment by using the access network device according to the user equipment information of the user equipment that needs to initiate the service establishment in the indication message.
  • the user equipment information in the indication information sent by the gateway device includes the user equipment information of the user equipment that needs to initiate service establishment. Therefore, the second mobility management network element can directly trigger the user equipment to establish a service connection by using the IMSI paging. Specifically, the second mobility management network element may initiate, according to the user equipment information in the indication message, the IMSI paging to the user equipment, and the user equipment corresponding to the user equipment information carried in the indication message; or If the location information of the user equipment is carried in the indication message, the second mobility management network element may also page the user equipment in the location information of the user equipment to improve the pertinence and efficiency of the IMSI paging; or The mobility management network element may also initiate paging to the user equipment according to the customized paging rule, and the paging user sets Ready.
  • the access network device described in this step may be a BSC under the GERAN system; R C under the UTRAN system; and an eNodeB under the EUTRAN system.
  • the user equipment may perform IMSI paging.
  • Step 205 The user equipment that receives the IMSI paging message initiates service establishment and establishes a service connection.
  • the IMSI paging message may trigger the user equipment to re-establish a service connection.
  • the user equipment may initiate an attach procedure, and establish a PDN connection in the attach process, according to The PDN connection in the attaching process establishes a service connection; and in the GERAN/UTRAN system, the user equipment receives the IMSI paging, the user equipment may initiate an attach procedure, and then initiate a PDP context activation process, through the PDP context activation process. Establish a business connection.
  • the gateway device After the user equipment establishes a service connection, it can implement its own services, such as receiving or transmitting related service information, which can effectively meet the service needs of the user equipment.
  • the gateway device learns that the first mobility management network element is reset, the gateway device may further select the first mobility management network element to send a service establishment indication message for the user equipment, that is, in the mobility management network element.
  • the second mobility management network element in this embodiment is the same as the first mobility management network element.
  • the gateway device determines, according to the feature information of the user equipment, the user equipment that needs to initiate the service establishment, and when the mobility management network element fails, notifying the user equipment that needs to initiate the service establishment to establish a service connection, which can implement the gateway device triggering requirement.
  • the user equipment that initiates the service establishment quickly establishes a service connection, restores the validity of the service connection of the user equipment with high reliability service, and ensures the service connection of the user equipment of the high reliability service requirement.
  • FIG. 3 is a schematic flowchart of Embodiment 3 of a method for ensuring a service connection according to the present invention.
  • the method in this embodiment can determine that the mobility management network element is faulty or reset by the access network device, and the user equipment that needs to be triggered can be determined by the access network device, and the user equipment is notified to establish a service connection.
  • the method in this embodiment may include the following steps:
  • Step 301 The access network device determines that the mobility management network element is reset or faulty.
  • the access network device can learn that the mobility management network element is reset according to the reset indication message sent by the received mobility management network element. Specifically, when the mobility management network element is reset, the reset indication information may be sent to the access network device to notify the reset. In addition, the access network device can learn that the mobility management network element is faulty according to the link detection mechanism.
  • Step 302 The access network device learns feature information of the user equipment attached to the faulty or reset mobility management network element.
  • the access network device can learn information about the user equipment attached to the mobility management network element, such as an IMSI, by using a configuration method. Specifically, the user equipment or the VIP user equipment with high reliability may be configured on the access network device. Identification information. The access network device can obtain information about the user equipment that needs to initiate service establishment according to the configuration information.
  • Step 303 The access network device learns the user equipment that needs to initiate the establishment of the service, and sends an IMSI paging message to the user equipment that needs to initiate the service establishment.
  • the user equipment that needs to be set up for the service is required to be the user equipment that needs to initiate the service establishment. Therefore, when the access network device obtains the feature information of the user equipment, the user equipment that needs to initiate the service establishment can be determined according to the feature information of the user equipment. device.
  • Step 304 After receiving the IMSI paging message, the user equipment can establish a service connection.
  • the user equipment can re-establish the service connection triggered by the IMSI page.
  • the user equipment may initiate an attach procedure, and establish a PDN connection in the attach procedure, and establish a service connection according to the PDN connection in the attach procedure; and in the GERAN/UTRAN system, the user equipment may initiate attach
  • the process then initiates a PDP context activation process to establish a service connection through the PDP context activation process.
  • the user can implement its own services, such as receiving or transmitting related service information, which can effectively meet the service needs of the user equipment.
  • the access network device determines, according to the feature information of the user equipment, the user equipment that needs to initiate the service establishment, and when the mobility management network element fails, the user equipment that needs to initiate the service establishment is established by the IMSI paging, and the service connection is established.
  • the access network device can trigger the user equipment that needs to initiate service establishment to quickly establish a service connection, restore the validity of the service connection of the user equipment with high reliability service, and ensure the service connection of the user equipment with high reliability service requirements.
  • FIG. 4 is a schematic flowchart diagram of Embodiment 4 of a method for ensuring a service connection according to the present invention.
  • the access network device in this embodiment can trigger the user equipment to establish a service connection by using the R C request information.
  • this embodiment may include the following steps:
  • Step 401 is the same as step 301 in the above embodiment.
  • Step 402 The access network device learns feature information of the user equipment attached to the faulty or reset mobility management network element.
  • the access network device learns the user equipment attached to the mobility management network element. Specifically, the access network device may determine, according to the context information of the user equipment, whether the user equipment on the user equipment is a user equipment attached to the faulty or reset mobility management network element, such as context information according to the user equipment. When the information of the mobility management network element that has failed or reset is included, it can be known that the user equipment is a user equipment attached to the mobility management network element. Then, based on the learned user equipment attached to the mobility management network element, the feature information of the user equipment attached to the mobility management network element can be obtained.
  • the access network device can obtain the feature information of the user equipment attached to the mobility management network element in the following manners, which are respectively described as follows:
  • the access network device can obtain the feature information of the user equipment from the context information of the user equipment.
  • the feature information of the user equipment may be set in the context information of the user equipment on the access network device, and the feature information of the user equipment may be notified to the access network device by the mobility management network element, and stored in the context information of the user equipment.
  • the UE Context Setup Request message sent by the mobility management network element to the access network device in the attach procedure or the PDN connection establishment process includes the feature information of the user equipment.
  • the access network device can obtain the feature information of the user equipment corresponding to the cell identifier accessed by the user equipment from the configuration information of the access network device.
  • the access network device may be configured with the feature information corresponding to the cell identifier accessed by the user equipment, so that the access network device may search for the cell identifier corresponding to the user equipment access in the configuration information according to the cell identifier accessed by the user equipment. Characteristic information of the user equipment.
  • the access network device can obtain the feature information of the user equipment corresponding to the user equipment group identifier from the configuration information of the access network device.
  • the access network device may be configured with the feature information corresponding to the user equipment group identifier, so that the access network device may search for the user equipment corresponding to the group identifier of the user equipment in the configuration information according to the group identifier of the user equipment.
  • Feature information The group identifier to which the user equipment belongs is the group or user equipment group identifier to which the user equipment belongs, or the industry user ID to which the user equipment belongs, or the MTC User or MTC Subscriber identifier to which the user equipment belongs, or other identifier users.
  • the identifier of the group or user equipment group to which the device belongs is not limited in this patent.
  • the access network device can obtain the feature information of the user equipment from the R C message sent by the user equipment.
  • the user equipment can carry the feature information of the user equipment to the access network device in the RC message.
  • the user equipment can set the feature information of the user equipment in the process of attaching, routing area update or tracking area update process, service request, and the like.
  • the RC message is carried to the access network device.
  • the access network device can learn the user equipment that needs to initiate service establishment according to the feature information of the user equipment.
  • the user equipment of the user equipment may be the identification information of the user equipment that needs the higher service connection requirement.
  • the user equipment that needs the higher service connection requirement may be the user equipment with high reliability requirements in the system. , or a VIP user in the system.
  • the feature information of the user equipment may be that the mobility management network element notifies the access network device of the feature information of the user equipment in the radio access bearer (RAB) establishment process.
  • RAB radio access bearer
  • Step 403 The access network device determines, according to the feature information of the user equipment, the user equipment that needs to be initiated to establish the service that is attached to the mobility management network element device, and sends the mobility management network element fault to the user equipment that needs to initiate the service establishment. Or reset the RC release request message for the cause value.
  • the Rc release request message carrying the mobility management network element failure or the reset cause value may be sent to the user equipment to notify the user equipment to establish a service connection.
  • the user equipment may return an R C release response message (RRC Release Response) to the access network device.
  • RRC Release Response RRC Release Response
  • Step 404 After receiving the R C release request message, the user equipment may establish a service connection according to the cause value in the R C release request message.
  • the access network device determines, according to the feature information of the user equipment, the user equipment that needs to initiate the service establishment, and when the mobility management network element fails, the RC message is used to notify the user equipment that needs to initiate the service establishment to establish a service connection.
  • the access device triggers the user equipment that needs to initiate the service establishment to quickly establish a service connection, restore the validity of the service connection of the user equipment with high reliability service, and ensure the service connection of the user equipment with high reliability service requirements.
  • FIG. 5 is a schematic flowchart of Embodiment 5 of a method for ensuring a service connection according to the present invention.
  • the access network device may notify the user equipment to establish a service connection by sending a broadcast message.
  • the method in this embodiment may include the following steps:
  • Step 501 The access network device learns that the mobility management network element is faulty or reset.
  • Step 502 The access network device broadcasts a broadcast message carrying the faulty or reset mobility management network element identifier.
  • Step 503 After the user equipment receives the broadcast message, if the identifier of the mobility management network element in the broadcast message is related to the user equipment The identity of the mobility management network element is the same, and the user equipment initiates service establishment.
  • the user equipment may select whether to initiate service establishment. For example, if the user equipment is application feature information with high reliability or the user equipment is a VIP user, the user equipment receives After the broadcast message sent by the network device is received, and the identifier of the mobility management network element in the broadcast message is consistent with the identifier of the mobility management network element in the user equipment, the user equipment may initiate a service connection establishment.
  • the mobility management network element may allocate the mobility management network element identifier to the user equipment.
  • the mobility management network element is the MME, and the MME allocates the globally unique to the user equipment.
  • the MME identity GUMMEI is included in the Globally Unique Temporary Identity (GUTI); or, in the GERAN/UTRAN system, the mobility management network element is the SGSN, and the SGSN is included in the P-TMSI (Packet TMSI) allocated for the user equipment.
  • the SGSN identifies the NRL. Therefore, after receiving the broadcast message, the user equipment can determine whether the mobility management network element identifier in the broadcast message is consistent with the mobility management network element identifier on the mobile device. If they are consistent, the service connection can be established.
  • the user equipment that needs to establish a service connection is triggered by the broadcast message to establish a service connection, and the user equipment that needs to initiate the service establishment can quickly establish a service connection, and restore the validity of the service connection of the user equipment with high reliability service.
  • Service connection of user equipment for high reliability business needs.
  • the network device does not need to first determine that a service connection user equipment needs to be established according to the feature information of the user equipment, and the user equipment determines whether to initiate a service connection, which can reduce the burden on the network equipment.
  • FIG. 6 is a schematic flowchart of Embodiment 6 of a method for ensuring a service connection according to the present invention.
  • the access network device can notify the user equipment to establish a service connection by using broadcast information in a specific cell.
  • the method in this embodiment may include the following steps:
  • Step 601 The access network device learns that the mobility management network element is faulty or reset.
  • Step 602 The access network device learns, according to the correspondence between the configured cell identifier and the feature information of the user equipment, the cell identifier of the cell where the user equipment that needs to initiate the service establishment is located.
  • the correspondence between the cell identifier and the feature information of the user equipment may be configured on the access network device, for example, the user equipment that is accessed in some cells has high reliability or is a VIP user equipment.
  • the broadcast message carrying the identifier of the mobility management network element may be broadcast in the certain cell.
  • Step 603 The access network device broadcasts a broadcast message carrying the mobility management network element identifier to the cell corresponding to the cell identifier.
  • the method for ensuring that the user equipment is accessed in the cell corresponding to the cell identifier may be: (1) the access network device may carry the group identifier to which the user equipment belongs in the cell broadcast message, if The group identifier to which the user equipment belongs includes the group identifier to which the user equipment belongs in the (or the same) cell broadcast message, and the user equipment selects the cell access.
  • the group identifier to which the user equipment belongs is the group or user equipment group identifier to which the user equipment belongs, or the industry user ID to which the user equipment belongs, or the MTC User or MTC Subscriber identifier to which the user equipment belongs, or other identifier users.
  • the identifier of the group or user equipment group to which the device belongs is not limited in this patent.
  • the access network device broadcasts the CSG ID of the cell in a cell broadcast message (Closed Subscriber Group Identifier), if the CSG ID of the user equipment is consistent with the CSG ID of the cell, the user equipment selects the cell access.
  • CSG ID of the cell in a cell broadcast message (Closed Subscriber Group Identifier)
  • Step 604 After the user equipment receives the broadcast message, if the identifier of the mobility management network element in the broadcast message is consistent with the identifier of the mobility management network element in the user equipment, the user equipment may re-establish the service connection.
  • the user equipment that needs to establish a service connection is triggered by the broadcast message to establish a service connection, and the user equipment that needs to initiate the service establishment can quickly establish a service connection, and restore the validity of the service connection of the user equipment with high reliability service.
  • Service connection of user equipment for high reliability business needs.
  • the network device does not need to first determine that a service connection user equipment needs to be established according to the feature information of the user equipment, and the user equipment determines whether to initiate a service connection, which can reduce the burden on the network equipment.
  • the pertinence of the broadcast information can be improved.
  • FIG. 7 is a schematic structural diagram of Embodiment 1 of a network device according to the present invention.
  • the network device in this embodiment includes a fault information acquiring module 1, a feature information acquiring module 2, and a notification module 3, where
  • the fault information obtaining module 1 is configured to learn that the mobility management network element is faulty or reset.
  • the feature information obtaining module 2 is configured to learn feature information of the user equipment attached to the mobility management network element;
  • the notification module 3 is configured to learn, according to the feature information of the user equipment, the user equipment that is required to initiate the establishment of the service, and notify the user equipment that needs to initiate the service establishment to initiate service establishment.
  • the network device in this embodiment may be an access network device, for example, a GGSN, an S-GW, or a P-GW, or may be an access network device, for example, a BSC, an RNC, or an eNodeB; wherein the mobility management
  • the network element can be an SGSN or an MME.
  • the fault information acquiring module 1 learns that the mobility management network element is faulty or reset
  • the feature information acquiring module 2 can learn the feature information of the user equipment attached to the faulty or reset mobility management network element
  • the notification module 3 notifies the user equipment that needs to initiate service establishment to initiate service establishment according to the feature information of the user equipment, so that the user equipment that needs to initiate the service establishment receives the notification message, initiates service establishment, and re-establishes the service connection.
  • the user equipment that needs to initiate service establishment may be a user equipment that has high reliability service requirements in the system, such as a VIP user equipment, or a user equipment that controls.
  • the user equipment that needs to initiate the service establishment is determined according to the feature information of the user equipment, and the user equipment that needs to initiate the service establishment is notified to initiate service establishment, and a new service connection is established.
  • the user equipment that needs to initiate the service establishment can quickly establish a service connection, restore the validity of the service connection of the user equipment with high reliability service, and ensure the service connection of the user equipment with high reliability service requirements. Pick up.
  • FIG. 8A is a schematic structural diagram of a feature information acquiring module in a second embodiment of a network device according to the present invention
  • FIG. 8B is a schematic structural diagram of a notification module in a second embodiment of the network device according to the present invention.
  • the network device is a gateway device, which may be a GGSN, an S-GW, or a P-GW.
  • the information acquisition module 2 may include a first user determination unit 20, and a first feature acquisition unit 21, a second feature acquisition unit 22, or a third feature acquisition unit 23, where
  • the first user determining unit 20 is configured to learn the user equipment attached to the mobility management network element, and the first feature acquiring unit 21 is configured to learn the feature information of the user equipment from the context information of the user equipment; or ,
  • the second feature acquiring unit 22 is configured to learn, from the configuration information of the gateway device, feature information of the user equipment corresponding to the identifier information of the user equipment; or
  • the third feature acquiring unit 23 is configured to learn, from the configuration information of the gateway device, feature information of the user equipment corresponding to the group identifier to which the user equipment belongs.
  • the first feature acquiring unit 21, the second feature acquiring unit 22, or the third feature acquiring unit may be used. 23 Knowing the feature information of the user equipment.
  • the specific method for obtaining the service reference may be made to the method for ensuring the service connection in the second embodiment of the present invention, and details are not described herein again.
  • the notification module 3 in this embodiment may include a first trigger user determining unit 30 and a first information sending unit 31, where:
  • the first triggering user determining unit 30 is configured to learn, according to the feature information of the user equipment attached to the mobility management network element, the user equipment that is attached to the mobility management network element and needs to initiate service establishment;
  • the first information sending unit 31 is configured to send a service establishment indication message to the normally working mobility management network element, where the service establishment indication message carries information about the user equipment that needs to initiate service establishment, so that the normal working
  • the mobility management network element performs IMSI paging on the user equipment that needs to initiate service establishment according to the information of the user equipment, and notifies the user equipment that needs to initiate service establishment that is attached to the mobility management network element to receive Establish a service connection after the IMSI paging message.
  • the first information sending unit 31 may send the IMSI paging to the user equipment that needs to initiate the service establishment by using the working mobility management network element.
  • the user equipment is notified to initiate service establishment and re-establish a service connection.
  • the gateway device determines, according to the feature information of the user equipment, the user equipment that needs to initiate the service establishment, and when the mobility management network element fails, notifying the user equipment that needs to initiate the service establishment to establish a service connection, which can implement the gateway device triggering requirement.
  • the user equipment that initiates the service establishment quickly establishes a service connection, restores the validity of the service connection of the user equipment with high reliability service, and ensures the service connection of the user equipment of the high reliability service requirement.
  • FIG. 9A is a schematic structural diagram of a feature information acquiring module in a third embodiment of the network device according to the present invention
  • FIG. 9B is a schematic structural diagram of a notification module in the third embodiment of the network device according to the present invention.
  • the network device in this embodiment is an access network device, and may be a BSC, an R C or an eNodeB.
  • the feature information acquiring module 2 in this embodiment may include a second user determining unit 24, and a fourth feature acquiring unit 25, a fifth feature acquisition unit 26, a sixth feature acquisition unit 27, or a seventh feature acquisition unit 28,
  • the second user determining unit 24 is configured to learn the user equipment attached to the mobility management network element
  • the fourth feature acquiring unit 25 is configured to learn the feature information of the user equipment from the context information of the user equipment.
  • the fifth feature acquiring unit 26 is configured to learn, from the configuration information of the access network device, feature information of the user equipment corresponding to the group identifier of the user equipment;
  • the sixth feature acquiring unit 27 is configured to learn, from the configuration information of the access network device, feature information of the user equipment corresponding to the cell identifier accessed by the user equipment.
  • the seventh feature acquiring unit 28 is configured to obtain, from the R C message sent by the user equipment, feature information of the user equipment.
  • the fourth feature acquiring unit 25 learns that the mobility management network element is attached to the reset.
  • the obtaining unit 28 learns the feature information of the user equipment.
  • the specific method for obtaining the method reference may be made to the third and fourth embodiments of the method for ensuring service connection according to the present invention, and details are not described herein again.
  • the notification module 3 in this embodiment may include a second trigger user determining unit 32, and a second information transmitting unit 33 or a third information transmitting unit 34, where
  • the second triggering user determining unit 32 is configured to determine, according to the feature information of the user equipment attached to the mobility management network element, a user equipment that is attached to the mobility management network element and needs to initiate service establishment;
  • the second information sending unit 33 is configured to perform IMSI paging to the user equipment that needs to initiate service establishment, so that the user equipment that needs to initiate service establishment establishes a service connection after receiving the IMSI paging message;
  • the third information sending unit 34 is configured to send, to the user equipment that needs to initiate service establishment, an RC release request message that carries the mobility management network element fault or reset cause value, so that the user equipment that needs to initiate service establishment is A service connection is established after receiving the RC release request message.
  • the second information sending unit 33 may initiate an IMSI paging to the user equipment that needs to initiate the service establishment, and notify the user equipment to initiate service establishment.
  • the third information sending unit 34 sends an RC release request message to notify the user equipment to initiate service establishment.
  • the access network device determines, according to the feature information of the user equipment, the user equipment that needs to initiate the service establishment, and when the mobility management network element is faulty or reset, notifying the user equipment that needs to initiate the service establishment to establish a service connection, which can be implemented.
  • the access network device triggers the user equipment that needs to initiate service establishment to quickly establish a service connection, restore the validity of the service connection of the user equipment with high reliability service, and ensure the service connection of the user equipment with high reliability service requirements.
  • FIG. 10 is a schematic structural diagram of Embodiment 4 of a network device according to the present invention.
  • the network device is an access network device, and in this embodiment, the access network device can notify the user equipment to establish a service connection by sending a broadcast message when the mobility management network element is faulty.
  • the network device in this embodiment includes a fault information acquiring module 4 and a broadcast module 5, where
  • the fault information obtaining module 4 is configured to learn that the mobility management network element is faulty or reset.
  • the broadcast module 5 is configured to broadcast a broadcast message carrying the mobility management network element identifier, so that after the user equipment receives the broadcast message, if the identifier of the mobility management network element in the broadcast message and the mobile device in the user equipment If the identifiers of the sex management NEs are the same, the service establishment is initiated.
  • the broadcast module 5 can broadcast the broadcast message carrying the mobility management network element identifier to notify the mobility management network element.
  • the user equipment establishes a service connection, and after the user equipment receives the broadcast message, and the mobility management network element identifier on the user equipment is the same as the mobility management network element identifier carried in the broadcast message, the user equipment may also be based on the user equipment.
  • the fifth embodiment of the method for ensuring service connection according to the present invention and details are not described herein again.
  • the user equipment that needs to establish a service connection is triggered by the broadcast message to establish a service connection, and the user equipment that needs to initiate the service establishment can quickly establish a service connection, and restore the validity of the service connection of the user equipment with high reliability service.
  • Service connection of user equipment for high reliability business needs.
  • This embodiment does not require a network
  • the network device first determines that a service connection user equipment needs to be established according to the feature information of the user equipment, and the user equipment itself determines whether to initiate a service connection, which can reduce the burden of the network equipment.
  • FIG. 11 is a schematic structural diagram of a broadcast module in Embodiment 5 of a network device according to the present invention.
  • the broadcast module 5 may specifically include a cell identifier acquiring unit 50 and a broadcast unit 51, where
  • the cell identifier obtaining unit 50 is configured to learn, according to the correspondence between the configured cell identifier and the feature information of the user equipment, the cell identifier of the cell where the user equipment that needs to initiate the service establishment is located;
  • the broadcast unit 51 is configured to broadcast, to the cell corresponding to the cell identifier, a broadcast message carrying the mobility management network element identifier, so that after the user equipment receives the broadcast message, if the mobility management network element in the broadcast message.
  • the identity of the mobility management network element in the user equipment is consistent with the identity of the mobility management network element in the user equipment.
  • the cell identity acquisition unit 50 can learn the cell identity of the cell where the user equipment that needs to initiate service establishment is located, and the broadcast unit 51 is in the specific cell corresponding to the cell identity.
  • the broadcast message carrying the mobility management network element identifier is broadcasted, so that the user equipment attached to the mobility management network element in the specific cell establishes a service connection after receiving the broadcast message.
  • the user equipment that needs to establish a service connection is triggered by the broadcast message to establish a service connection, and the user equipment that needs to initiate the service establishment can quickly establish a service connection, and restore the validity of the service connection of the user equipment with high reliability service.
  • Service connection of user equipment for high reliability business needs.
  • the network device does not need to first determine that a service connection user equipment needs to be established according to the feature information of the user equipment, and the user equipment itself determines whether to initiate a service connection, which can reduce the burden on the network equipment, and the embodiment sends a broadcast to a specific cell. Messages can improve the targeting of broadcast messages.
  • FIG. 12 is a schematic structural diagram of an embodiment of a user equipment according to the present invention. As shown in FIG. 12, the user equipment in this embodiment includes a message receiving module 6 and a service connection module 7, where
  • the message receiving module 6 is configured to receive a notification message that is sent by the network device, where the notification message is that the network device needs to initiate a service that is attached to the mobility management network element when the mobility management network element is faulty or reset.
  • the established user equipment initiates a service establishment message;
  • the service connection module 7 is configured to initiate service establishment according to the notification message.
  • the network device may be an access network device, for example, a GGSN, an S-GW, or a P-GW, or may be an access network device, for example, a BSC, an R C, or an eNodeB.
  • the message receiving module 6 is configured to receive the IMSI initiated by the gateway device by using the mobility management network element. Or the IMS release request message that is sent by the access network device and that carries the mobility management network element fault or the reset cause value.
  • the service connection module 7 can establish a service connection according to the message received by the message receiving module 6. Specifically, the service connection module 7 can be configured to receive the IMSI paging message initiated by the gateway device through the mobility management network element.
  • Initiating service establishment or, after receiving the IMSI paging message initiated by the access network device, initiating service establishment; or, receiving, for receiving the mobility management network element fault sent by the access network device or After the RC release request message of the cause value is reset, the service establishment is initiated according to the cause value in the RRC release request message.
  • the service connection module is specifically configured to initiate an attach process, and establish a service connection according to the PDN connection in the attach process; or, specifically, to initiate an attach process and a PDP context activation process, according to the PDP context activation process.
  • Business connection is specifically configured to initiate an attach process, and establish a service connection according to the PDN connection in the attach process; or, specifically, to initiate an attach process and a PDP context activation process, according to the PDP context activation process.
  • the message receiving module 6 may be specifically configured to receive a broadcast message that is sent by the access network device and that carries the faulty or reset mobility management network element identifier.
  • the service connection module 7 may be specifically used when When the identifier of the mobility management network element included in the broadcast message is the same as the identifier of the mobility management network element in the user equipment, the service establishment is initiated.
  • the service connection can be established according to the notification message sent by the network device, so that when the mobility management network element attached to the user equipment is faulty or reset, the service connection is established through the received notification message, and the validity of the service connection can be quickly and effectively restored. , to ensure high reliability business needs of user equipment.
  • the method includes the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Description

保证业务连接的方法、 网络设备和用户设备 本申清要求于 2009年 11月 27 日提交中国专利局、 申请号为 200910225672.1、 发 明名称为 "保证业务连接的方法、 网络设备和用户设备" 的中国专利申请的优先权， 其 全部内容通过引用结合在本申请中。 技术领域 本发明实施例涉及通信技术领域， 尤其涉及一种保证业务连接的方法、 网络设备和 用户设备。 背景技术 第三代合作伙伴计划（3rd Generation Partnership Project, 3GPP)为了应对在无线宽带 技术上的挑战，保持 3GPP的优势，制定了长期演进计划（Long Term Evolution, TLE ) , 并在该 LTE 下定义了新的移动通信网络架构， 使得该架构相对于现有的通用无线分组 业务系统（General Packet Radio Service, GPRS ) /通用移动通信系统（ Universal Mobile Telecommunication System, UMTS )更加扁平， 并且保留了分组域， 被称之为演进的分 组网络（Evolved Packet System, EPS ) 。 现有的 EPS的核心网主要包括： 移动管理实 体 ( Mobility Management Entity, MME ) 、 月艮务网关 （ Serving Gateway, S-GW )和分 组数据网络网关（ Packet Data Network Gateway, P-GW )等逻辑功能实体， 其中， MME 负责非接入层（ Non Access Stratum, NAS )信令和 NAS信令加密以及漫游、 跟踪等功 能， 分配用户临时身份标识以及安全功能等； S-GW 负责本地的移动性锚点、 3GPP 系 统内部的移动性锚点， 以及合法监听相关信息， P-GW负责策略执行、 计费以及合法监 听相关功能。
上述的 EPS网络可应用于人与人（ Human to Human, H2H )和机器与机器（ Machine to Machine, M2M )通信的应用中， 其中， H2H通信需要人为参与， 而 M2M通信则是 指无人为参与情况下各用户设备之间的网络通讯， 如交通控制与管理、 工厂监控以及远 程抄表等的应用。 在目前的 EPS网络中， 当移动性管理网元， 即 MME出现故障或复位 时， 移动性管理网元会将附着在其上的用户设备的上下文信息全部删除， 同时， 网关设 备， 即 S-GW和 P-GW检测到移动性管理网元出现故障或复位时， 也会将其上管理的附 着在移动性管理网元上的用户设备的上下文信息全部删除， 因此， 附着在移动性管理网 元上的用户设备的业务连接就会中断， 用户设备需要重新建立业务连接才能实现新的业 务， 而目前用户设备一般是通过人工复位用户设备的方法才能重新建立业务连接。 在实现本发明过程中， 发明人发现现有技术中至少存在如下问题： 现有的 H2H或 M2M通信系统中， 当移动性管理网元出现故障或复位时， 移动性管理网元和网关设备 会将附着在该移动性管理网元上的用户设备的上下文信息全部删除，使得用户设备的业 务连接中断，且必须对用户设备进行人工复位后才可使用户设备重新建立业务连接， 而 对于高可靠性业务连接， 例如， H2H通信应用下的 VIP用户， 或者 M2M通信应用下的 安全监控用户设备， 其需要高可靠性的业务连接， 现有技术中无法为该类用户快速恢复 业务连接， 从而导致该类高可靠性业务不可用。 发明内容
本发明实施例提供一种保证业务连接的方法、 网络设备和用户设备， 实现快速有效 地恢复用户设备的业务连接， 保证用户设备的业务连接的有效性和可靠性。
本发明实施例提供一种保证业务连接的方法， 包括：
获知移动性管理网元故障或复位；
获知附着于所述移动性管理网元上的用户设备的特征信息；
根据用户设备的特征信息获知附着于所述移动性管理网元上的需要发起业务建立 的用户设备 , 通知所述需要发起业务建立的用户设备发起业务建立。
本发明实施例提供一种保证业务连接的方法， 包括：
接入网设备获知移动性管理网元故障或复位；
接入网设备广播携带所述移动性管理网元标识的广播消息， 以使用户设备接收到所 述广播消息后，如果广播消息中的移动性管理网元的标识与用户设备中的移动性管理网 元的标识一致， 则发起业务建立。
本发明实施例提供一种网络设备， 包括：
故障信息获取模块， 用于获知移动性管理网元故障或复位；
特征信息获取模块， 用于获知附着于所述移动性管理网元上的用户设备的特征信 息；
通知模块， 用于根据用户设备的特征信息获知附着于所述移动性管理网元上的需要 发起业务建立的用户设备， 通知所述需要发起业务建立的用户设备发起业务建立。
本发明实施例提供一种网络设备， 包括：
故障信息获取模块， 用于获知移动性管理网元故障或复位； 广播模块， 用于广播携带所述移动性管理网元标识的广播消息， 以使用户设备接收 到所述广播消息后，如果广播消息中的移动性管理网元的标识与用户设备中的移动性管 理网元的标识一致， 则发起业务建立。
本发明实施例提供一种用户设备， 包括：
消息接收模块， 用于接收网络设备发送的通知消息， 所述通知消息为所述网络设备 在移动性管理网元故障或复位时，通知附着于所述移动性管理网元上的需要发起业务建 立的用户设备发起业务建立的消息；
业务连接模块， 用于根据所述通知消息发起业务建立。
本发明实施例通过在移动性管理网元故障或复位时， 通知用户设备建立业务连接， 使得需要发起业务建立的用户设备可以快速地建立业务连接， 恢复具有高可靠性业务连 接的用户设备业务连接的有效性，保证具有可靠性业务需求的用户设备的业务连接的可 靠性。 附图说明 为了更清楚地说明本发明实施例的技术方案， 下面将对实施例描述中所需要使用的 附图作一筒单地介绍， 显而易见地， 下面描述中的附图是本发明的一些实施例， 对于本 领域普通技术人员来讲， 在不付出创造性劳动性的前提下， 还可以根据这些附图获得其 他的附图。
图 1为本发明保证业务连接的方法实施例一的流程示意图；
图 2为本发明保证业务连接的方法实施例二的流程示意图；
图 3为本发明保证业务连接的方法实施例三的流程示意图；
图 4为本发明保证业务连接的方法实施例四的流程示意图；
图 5为本发明保证业务连接的方法实施例五的流程示意图；
图 6为本发明保证业务连接的方法实施例六的流程示意图；
图 7为本发明网络设备实施例一的结构示意图；
图 8Α为本发明网络设备实施例二中特征信息获取模块的结构示意图；
图 8Β为本发明网络设备实施例二中通知模块的结构示意图；
图 9Α为本发明网络设备实施例三中特征信息获取模块的的结构示意图； 图 9Β为本发明网络设备实施例三中通知模块的结构示意图；
图 10为本发明网络设备实施例四的结构示意图； 图 11为本发明网络设备实施例五中广播模块的结构示意图；
图 12为本发明用户设备实施例的结构示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发明实施例中 的附图， 对本发明实施例中的技术方案进行清楚、 完整地描述， 显然， 所描述的实施例 是本发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技 术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范 围。
图 1为本发明保证业务连接的方法实施例一的流程示意图。 具体地， 如图 1所示， 本实施例可包括如下步骤：
步骤 101、 网络设备获知移动性管理网元故障或复位；
步骤 102、 网络设备获知附着于所述移动性管理网元上的用户设备的特征信息； 步骤 103、 网络设备根据用户设备的特征信息获知附着于所述移动性管理网元上的 需要发起业务建立的用户设备， 通知所述需要发起业务建立的用户设备发起业务建立。
其中， 所述的网络设备可以为网关设备， 例如， GGSN、 S-GW或 P-GW, 或者， 也可以为接入网设备，例如， BSC、 R C或 eNodeB;所述的移动性管理网元可以是 SGSN 或 MME。
本实施例在移动性管理网元故障或复位时，可才艮据用户设备的特征信息确定附着于 该故障或复位的移动性管理网元的需要发起业务建立的用户设备， 并通知该需要发起业 务建立的用户设备发起业务建立， 建立新的业务连接， 保证需要发起业务连接的用户设 备的业务连接的有效性。 其中， 该需要发起业务连接的用户设备可以为系统中具有高可 靠性业务需求的用户设备， 或 VIP用户设备， 或起控制作用的用户设备等； 所述的用户 设备的特征信息（MTC Feature )可以是表示用户设备为高可靠性业务需求应用的信息， 或者是表示用户设备为 VIP用户的信息。
本实施例中， 所述的用户设备发起业务建立可以是指用户设备发起附着流程或者用 户设备发起 PDN连接建立流程或者用户设备发起激活 PDP上下文流程。
本实施例在移动性管理网元故障或复位时，根据用户设备的特征信息确定需要发起 业务建立的用户设备， 并通知该需要发起业务建立的用户设备发起业务建立， 建立新的 业务连接， 使得需要发起业务建立的用户设备可快速地建立业务连接， 恢复具有高可靠 性业务的用户设备的业务连接的有效性， 保证高可靠性业务需求的用户设备的业务连 接。
图 2为本发明保证业务连接的方法实施例二的流程示意图。本实施例方法可通过网 关设备确定移动性管理网元故障或复位， 并由网关设备通知用户设备建立业务连接。 具 体地， 本实施例方法可包括以下步骤：
步骤 201、 网关设备获知第一移动性管理网元故障或复位。
本步骤中， 网关设备获知第一移动性管理网元故障或复位具体地可包括如下步骤： 步骤 A1、 网关设备向第一移动性管理网元发送检测消息；
步骤 A2、 当网关设备未接收到第一移动性管理网元反馈的与检测消息对应的检测 应答消息， 则网关设备获知第一移动性管理网元故障； 或者，
步骤 A3、 当网关设备接收到第一移动性管理网元反馈的与检测消息对应的检测应 答消息， 且检测应答消息指示第一移动性管理网元复位时， 则网关设备获知第一移动性 管理网元复位。
具体地， 本实施例网关设备可通过 Echo探测消息获知第一移动性管理网元故障或 复位， 其探测过程为： 网关设备在第一次向第一移动性管理网元发送检测消息， 如 Echo Request时，第一移动性管理网元会对该检测消息作出应答，返回检测应答消息，如 Echo Response, 且在返回的检测应答消息中指示一个计数器（ counter ) , 并将该计数器设置 一个初始值， 此后， 网关设备周期性的向第一移动性管理网元发送检测消息， 若第一移 动性管理网元运行正常， 则第一移动性管理网元会返回应答消息， 并保持检测应答消息 中的计数器数值不变； 若第一移动性管理网元复位， 则第一移动性管理网元将会改变检 测应答消息中的计数器数值， 如计数器数值加 1 , 因此， 网关设备可根据接收到的检测 应答消息中的计数器数值获知第一移动性管理网元是否复位， 即网关设备接收到的检测 应答消息中的计数器数值大于前一检测应答消息中的数值时， 网关设备即可获知第一移 动性管理网元复位。 而网关设备发送检测消息之后的一定的时间内， 未接收到第一移动 性管理网元的检测应答消息时， 可获知该第一移动性管理网元故障。 本领域技术人员可 理解的是， 本发明实施例并不限于上述方式， 网关设备也可通过其它方式获知第一移动 性管理网元故障或复位。
步骤 202、 网关设备获知附着于该出现故障或复位的第一移动性管理网元上的用户 设备的特征信息。
首先， 网关设备获知附着于该移动性管理网元的用户设备。 具体地， 网关设备可根 据其上的用户设备的上下文信息，获知其管理的用户设备是否是附着于该故障或复位的 第一移动性管理网元的用户设备，如可根据用户设备的上下文信息中包含有出现故障或 复位的第一移动性管理网元的信息时，可获知用户设备是附着于该第一移动性管理网元 的用户设备。
其次， 根据获知的附着于第一移动性管理网元上的用户设备， 则可获知附着于该第 一移动性管理网元的用户设备的特征信息。 其中， 网关设备可通过以下几种方式获知附 着于该第一移动性管理网元上的用户设备的特征信息， 分别说明如下：
( 1 ) 网关设备可从用户设备的上下文信息中获知用户设备的特征信息。
网关设备的用户设备的上下文信息中可设置有用户设备的特征信息，且用户设备的 特征信息可通过移动性管理网元通知给网关设备， 并由网关设备将其保存在用户设备的 上下文信息中。 具体地， 可以在签约数据中签约用户设备的特征信息， 移动性管理网元 可从签约数据中获取用户设备的特征信息， 并可将获得的用户设备的特征信息携带在会 话请求消息， 如 Create Session Request 或 Create PDP Request中， 发送给网关设备， 从 而网关设备可以将从会话请求消息中获得的用户设备的特征信息保存在用户设备的上 下文信息中。
其中， 移动性管理网元从签约数据中获取用户设备的特征信息具体可以是： 在附着 流程或跟踪区更新或路由区更新流程中， 向归属位置寄存器（ Home Location Register, HLR )或归属签约服务器（Home Subscriber Server, HSS )发送位置更新请求（Update Location Request )消息， HLR或 HSS在位置更新确认（ Update Location Ack )消息中携 带用户设备的特征信息。
( 2 ) 网关设备可从网关设备的配置信息中， 获知与用户设备的用户设备标识信息 对应的用户设备的特征信息。
网关设备可配置有与用户设备的标识信息对应的特征信息， 这样， 网关设备在确定 附着于第一移动性管理网元的用户设备后， 即可才艮据用户设备的标识信息， 在其上配置 信息中查找与用户设备的标识信息对应的用户设备的特征信息。 其中， 用户设备的标识 信息可以是移动性管理网元在会话管理消息中将用户设备的标识信息携带给网关设备， 具体地，移动性管理网元可在进行附着流程或跟踪区更新或位置区更新流程或切换流程 时， 在会话管理消息， 如 Create Session Request 或 Create PDP Request中， 携带附着于 其上的用户设备的标识信息， 发送给网关设备。
( 3 ) 网关设备可从网关设备的配置信息中， 获知与用户设备所属的群组标识对应 的用户设备的特征信息。
网关设备可配置有与用户设备所属的群组标识对应的特征信息， 这样， 网关设备在 确定附着于第一移动性管理网元的用户设备后， 即可才艮据用户设备所属的群组标识， 在 配置信息中查找与之对应的用户设备的特征信息。 其中， 用户设备所属的群组标识可以 是移动性管理网元在会话管理消息中将用户设备所属的群组标识携带给网关设备 ,具体 地， 移动性管理网元可在进行附着流程或跟踪区更新或位置区更新流程或切换流程时， 在会话管理消息中携带附着于其上的用户设备的群组标识， 发送给网关设备， 网关设备 可根据该用户设备所属的群组标识获得用户设备的特征信息。
其中， 所述的用户设备所属的群组标识是指用户设备所属的用户设备组或群组的标 识、 用户设备所属的 M2M行业用户 （ MTC User ) 的标识、 用户设备所属的 M2M应用 签约用户 （MTC Subscriber ) 的标识或其它指示群组或行业用户标识的信息， 例如， 可 通过接入点名称 ( Access Point Name, APN )标识用户设备所属的群组、 用户组或行业 用户， 则 APN就是用户设备所属群组或用户组或行业用户的标识； 此外， 在主备设备 ( Master/Slave设备）组成的群组或者用户设备组的场景下， 主设备的标识信息也可以 作为用户设备所属群组或用户组或行业用户的标识， 此时， 用户设备所述的群组标识就 可以是主设备的标识信息。 本实施例中， 移动性管理网元在进行附着流程或跟踪区更新 或位置区更新流程或切换流程时，可在会话管理消息中将用户设备所属的行业标识携带 给网关设备， 网关设备即可根据获得的用户设备所属的群组标识和其上的配置信息获得 用户设备的特征信息。
本实施例中的用户设备的特征信息可以是用户设备需要较高业务连接需求， 具体 地， 需要较高业务连接需求的用户设备可以是系统中的具有高可靠性要求的用户设备， 或者是系统中的 VIP用户等。
步骤 203、 网关设备根据用户设备的特征信息获知附着在第一移动性管理网元设备 上的需要发起业务建立的用户设备， 向正常运行的第二移动性管理网元发送指示消息， 该指示消息中携带需要发起业务建立的用户设备的用户设备信息。
上述的需要较高业务连接需要的用户设备即为需要发起业务建立的用户设备， 因 此， 网关设备获得用户设备的特征信息时， 即可根据用户设备的特征信息确定需要发起 业务建立的用户设备。
当获得确定需要触发的用户设备后 ,可向正常运行的第二移动性管理网元发送指示 消息， 且该指示消息中携带该需要发起业务建立的用户设备的用户设备信息， 如用户设 备的标识信息。 其中， 在 GERAN/UTRAN系统， 本实施例所述的网关设备可为 GGSN, 则指示消息可以是分组数据 4艮文通知清求消息 （ PDU Notification Request ) , 所述的分 组数据报文通知请求消息中包含该需要触发的用户设备的标识信息， 如 IMSI, 此外， 所述的分组数据报文通知请求消息中还可包括该需要触发的用户设备的位置信息，如路 由区标识（Routing Area Identity ) , 其中， 用户设备的位置信息可保存在网关设备的上 下文信息中； 而在 EUTRAN系统中， 所述的网关设备为 SGW, 则网关设备发送的指示 消息可以是下行数据报文通知消息（ Downlink Data Notification ) , 所述的下行数据报文 通知消息中包括该需要触发的用户设备的标识信息， 如 IMSI, 此外， 所述的下行数据 报文通知消息中还可包括该需要触发的用户设备的位置信息， 如跟踪区列表（ Tracking Area List ) , 其中， 所述的用户设备的位置信息可保存在网关设备上用户设备的上下文 信息中。 本领域技术人员可以理解的是， 网关设备发送的指示消息除了可以是分组数据 报文通知请求消息，或者下行数据报文通知消息外，也可以是其它消息，或新增的消息， 且在该消息中携带需要发起业务建立的用户设备的标识信息， 以及还可携带需要发起业 务建立的用户设备的位置信息。
之后， 第二移动性管理网元接收到该指示消息后还可以向网关设备返回指示响应消 息。
具体地， 接收到网关设备发送的携带用户设备的信息的指示消息后， 第二移动性管 理网元可作出应答， 并返回指示响应消息。 其中， 若所述指示消息为分组数据报文通知 请求消息时， 返回的指示响应消息可为分组数据报文通知响应消息 (PDU Notification Response ) ； 若所述指示消息为下行数据报文通知消息时， 返回的指示响应消息可以为 下行数据艮文通知确认消息 （ Downlink Date Notification Ack ) 。
步骤 204、 第二移动性管理网元根据该指示消息中的需要发起业务建立的用户设备 的用户设备信息， 通过接入网设备 , 向该需要发起业务建立的用户设备发起 IMSI寻呼。
由于网关设备发送的指示信息中的用户设备信息包含需要发起业务建立的用户设 备的用户设备信息， 因此， 第二移动性管理网元可通过 IMSI寻呼直接触发用户设备建 立业务连接。 具体地， 第二移动性管理网元可根据指示消息中的用户设备信息， 在其管 理范围内向用户设备发起 IMSI寻呼， 寻呼该指示消息中携带的用户设备信息对应的用 户设备； 或者， 若指示消息中携带有用户设备的位置信息， 则第二移动性管理网元还可 在所述的用户设备的位置信息内寻呼用户设备， 提高 IMSI寻呼的针对性和效率； 或者， 第二移动性管理网元还可以根据自定义的寻呼规则向用户设备发起寻呼， 寻呼用户设 备。
本步骤中所述的接入网设备在 GERAN系统下可以是 BSC; 在 UTRAN系统下， 可 以是 R C;在 EUTRAN系统下可以是 eNodeB。当接入网设备接收到 IMSI寻呼消息后， 可对用户设备进行 IMSI寻呼。
步骤 205、 接收到 IMSI寻呼消息的用户设备， 发起业务建立， 建立业务连接。 所述的 IMSI寻呼消息可触发用户设备重新建立业务连接， 具体地，在 EUTRAN系 统中， 用户设备接收到 IMSI寻呼， 则用户设备可发起附着流程， 并在附着流程中建立 PDN连接， 根据所述附着流程中的 PDN连接建立业务连接； 而在 GERAN/UTRAN系 统中， 用户设备接收到 IMSI寻呼， 则用户设备可发起附着流程， 然后发起 PDP上下文 激活流程， 通过所述 PDP上下文激活流程建立业务连接。 用户设备建立业务连接后， 即可实现其自身的业务， 如接收或发送相关的业务信息， 可有效满足用户设备的业务需 要。 另外， 如果网关设备获知第一移动性管理网元复位， 则所述网关设备还可以选择所 述第一移动性管理网元为所述用户设备发送业务建立指示消息， 即在移动性管理网元复 位的场景下， 本实施例中所述第二移动性管理网元与所述第一移动性管理网元相同。
本实施例通过网关设备根据用户设备的特征信息确定需要发起业务建立的用户设 备，并在移动性管理网元出现故障时，通知需要发起业务建立的用户设备建立业务连接， 可以实现网关设备触发需要发起业务建立的用户设备快速地建立业务连接 , 恢复具有高 可靠性业务的用户设备的业务连接的有效性，保证高可靠性业务需求的用户设备的业务 连接。
图 3为本发明保证业务连接的方法实施例三的流程示意图。本实施例方法可通过接 入网设备确定移动性管理网元故障或复位， 并可由接入网设备确定需要触发的用户设 备， 通知用户设备建立业务连接。 具体地， 本实施例方法可包括以下步骤：
步骤 301、 接入网设备确定移动性管理网元复位或故障。
本步骤中， 接入网设备可根据接收到的移动性管理网元发送的复位指示消息， 获知 移动性管理网元复位。 具体地， 移动性管理网元复位时， 可向接入网设备发送复位指示 信息，通知其复位。另外，接入网设备可以根据链路探测机制获知移动性管理网元故障。
步骤 302、 接入网设备获知附着于该发生故障或复位的移动性管理网元上的用户设 备的特征信息。
接入网设备可以通过配置的方法获知附着于该移动性管理网元的用户设备的信息， 如 IMSI。 具体可以是在接入网设备上配置具有高可靠性的用户设备或者 VIP用户设备 的标识信息。 接入网设备根据配置信息即可以获知需要发起业务建立的用户设备的信 息。
步骤 303、 接入网设备获知附着在移动性管理网元设备上的需要发起业务建立的用 户设备 , 并向该需要发起业务建立的用户设备发送 IMSI寻呼消息。
上述的需要较高业务连接需要的用户设备即为需要发起业务建立的用户设备， 因 此， 接入网设备获得用户设备的特征信息时， 即可根据用户设备的特征信息确定需要发 起业务建立的用户设备。
步骤 304、 用户设备接收到 IMSI寻呼消息后， 即可建立业务连接。
用户设备接收到 IMSI寻呼后，可在该 IMSI寻呼的触发下重新建立业务连接。具体 地， 在 EUTRAN系统中， 用户设备可发起附着流程， 并在附着流程中建立 PDN连接， 根据所述附着流程中的 PDN连接建立业务连接； 而在 GERAN/UTRAN系统中， 用户设 备可发起附着流程， 然后发起 PDP上下文激活流程， 通过所述 PDP上下文激活流程建 立业务连接。 用户建立业务连接后， 即可实现其自身的业务， 如接收或发送相关的业务 信息， 可有效满足用户设备的业务需要。
本实施例通过接入网设备根据用户设备的特征信息确定需要发起业务建立的用户 设备， 并在移动性管理网元出现故障时， 通过 IMSI寻呼通知需要发起业务建立的用户 设备建立业务连接，可以实现接入网设备触发需要发起业务建立的用户设备快速地建立 业务连接， 恢复具有高可靠性业务的用户设备的业务连接的有效性， 保证高可靠性业务 需求的用户设备的业务连接。
图 4为本发明保证业务连接的方法实施例四的流程示意图。 与图 3所示实施例技术 方案不同的是，本实施例接入网设备可通过 R C请求信息触发用户设备建立业务连接。 具体地， 如图 4所示， 本实施例可包括以下步骤：
步骤 401、 与上述实施例中的步骤 301对应相同。
步骤 402、 接入网设备获知附着于该发生故障或复位的移动性管理网元上的用户设 备的特征信息。
首先， 接入网设备获知附着于该移动性管理网元的用户设备。 具体地， 接入网设备 可根据其上的用户设备的上下文信息，确定其上的用户设备是否是附着于该故障或复位 的移动性管理网元的用户设备，如可根据用户设备的上下文信息中包含有出现故障或复 位的移动性管理网元的信息时， 可获知用户设备是附着于该移动性管理网元的用户设 备。 其次， 根据获知的附着于移动性管理网元上的用户设备， 则可获知附着于该移动性 管理网元的用户设备的特征信息。
其中，接入网设备可通过以下几种方式获知附着于该移动性管理网元上的用户设备 的特征信息， 分别说明如下：
( 1 )接入网设备可从用户设备的上下文信息中获知用户设备的特征信息。
接入网设备上用户设备的上下文信息中可设置有用户设备的特征信息， 且用户设备 的特征信息可通过移动性管理网元通知给接入网设备， 并保存在用户设备的上下文信息 中， 如， 移动性管理网元在附着流程或者 PDN连接建立流程中向接入网设备发送的 UE Context Setup Request消息中包含用户设备的特征信息。
( 2 )接入网设备可从接入网设备的配置信息中， 获知与用户设备接入的小区标识 对应的用户设备的特征信息。
接入网设备可配置有与用户设备接入的小区标识对应的特征信息， 这样， 接入网设 备可根据用户设备接入的小区标识，在配置信息中查找与用户设备接入的小区标识对应 的用户设备的特征信息。
( 3 )接入网设备可从接入网设备的配置信息中， 获知与用户设备群组标识对应的 用户设备的特征信息。
接入网设备可配置有与用户设备群组标识对应的特征信息， 这样， 接入网设备可根 据用户设备的群组标识，在配置信息中查找与用户设备的群组标识对应的用户设备的特 征信息。 其中， 用户设备所属的群组标识是指用户设备所属的群组或用户设备组标识， 或者是用户设备所属的行业用户标识， 或者是用户设备所属的 MTC User 或 MTC Subscriber标识， 或者其他标识用户设备所属的群组或用户设备组的标识， 本专利不作 限制。
( 4 )接入网设备可从用户设备发送的 R C消息中， 获知用户设备的特征信息。 用户设备可在 R C消息中将用户设备的特征信息携带给接入网设备， 如， 用户设 备可以在附着流程、 路由区更新或跟踪区更新流程、 服务请求等流程中将用户设备的特 征信息在 R C消息中携带给接入网设备。
在获得用户设备的特征信息后，接入网设备即可根据用户设备的特征信息获知需要 发起业务建立的用户设备。 其中， 所述的用户设备的特征信息可以是需要较高业务连接 需求的用户设备的标识信息， 具体地， 需要较高业务连接需求的用户设备可以是系统中 的具有高可靠性要求的用户设备， 或者是系统中的 VIP用户等。 此外， 本实施例中， 用户设备的特征信息也可以是移动性管理网元在无线接入承载 ( Radio Access Bearer, RAB )建立流程中， 将用户设备的特征信息通知接入网设备。
步骤 403、 接入网设备根据用户设备的特征信息确定附着在移动性管理网元设备上 的需要发起业务建立的用户设备， 并向该需要发起业务建立的用户设备发送携带移动性 管理网元故障或复位原因值的 R C释放请求消息。
当接入网设备确定需要发起业务建立的用户设备后 , 即可向用户设备发送携带移动 性管理网元故障或复位原因值的 R C释放请求消息， 作为业务建立指示通知用户设备 建立业务连接。
之后， 用户设备在接收到 RRC释放请求消息后， 可向接入网设备返回 R C释放响 应消息 （ RRC Release Response ) 。
步骤 404、 用户设备接收到 R C释放请求消息后， 可根据 R C释放请求消息中的 原因值， 建立业务连接。
本实施例通过接入网设备根据用户设备的特征信息确定需要发起业务建立的用户 设备， 并在移动性管理网元出现故障时， 通过 R C消息通知需要发起业务建立的用户 设备建立业务连接，可以实现接入网设备触发需要发起业务建立的用户设备快速地建立 业务连接， 恢复具有高可靠性业务的用户设备的业务连接的有效性， 保证高可靠性业务 需求的用户设备的业务连接。
图 5为本发明保证业务连接的方法实施例五的流程示意图。 本实施例中， 在移动性 管理网元故障或复位时， 接入网设备可通过发送广播消息通知用户设备建立业务连接。 具体地， 如图 5所示， 本实施例方法可包括以下步骤：
步骤 501、 接入网设备获知移动性管理网元故障或复位。
步骤 502、 接入网设备广播携带该故障或复位的移动性管理网元标识的广播消息； 步骤 503、 用户设备接收到广播消息后， 如果广播消息中的移动性管理网元的标识 与用户设备中的移动性管理网元的标识一致， 则所述用户设备发起业务建立。
本实施例中， 用户设备接收到广播消息后， 可由用户设备选择是否发起业务建立， 例如， 如果用户设备是具有高可靠性的应用特征信息或者所述用户设备是 VIP用户， 则 用户设备接收到接入网设备发送的广播消息后，且广播消息中的移动性管理网元的标识 与用户设备中的移动性管理网元的标识一致， 则用户设备可发起业务连接建立。
实际应用中， 移动性管理网元可为用户设备分配移动性管理网元标识， 具体地， 如 在 EUTRAN系统中， 移动性管理网元为 MME, 则 MME在为用户设备分配全局唯一的 临时标识（ Globally Unique Temporary Identity, GUTI ) 中包含 MME标识 GUMMEI; 或者， 在 GERAN/UTRAN系统中， 移动性管理网元为 SGSN, 则 SGSN在为用户设备 分配的 P-TMSI ( Packet TMSI ) 中包含 SGSN标识 NRL 因此， 用户设备接收到该广播 消息后， 即可确定广播消息中的移动性管理网元标识是否与其自身上的移动性管理网元 标识一致， 若一致， 则可建立业务连接。
本实施例通过广播消息触发需要建立业务连接的用户设备建立业务连接，可以实现 需要发起业务建立的用户设备快速地建立业务连接， 恢复具有高可靠性业务的用户设备 的业务连接的有效性， 保证高可靠性业务需求的用户设备的业务连接。 本实施例无需网 络设备首先根据用户设备的特征信息确定需要建立业务连接用户设备， 而由用户设备自 身确定是否发起业务连接， 可以减轻网络设备的负担。
图 6为本发明保证业务连接的方法实施例六的流程示意图。 与上述图 5所示实施例 技术方案不同的是，本实施例中接入网设备可在特定的小区内通过广播信息通知用户设 备建立业务连接。 具体地， 如图 6所示， 本实施例方法可包括以下步骤：
步骤 601、 接入网设备获知移动性管理网元故障或复位。
步骤 602、接入网设备根据配置的小区标识与用户设备的特征信息之间的对应关系， 获知需要发起业务建立的用户设备所在小区的小区标识。
本实施中，在接入网设备上可以配置小区标识与用户设备的特征信息之间的对应关 系， 如， 在某些小区下接入的用户设备均具有高可靠性或者均是 VIP的用户设备， 则接 入网设备在获知移动性管理网元复位或故障后，可以在所述某些小区中广播携带移动性 管理网元的标识的广播消息。
步骤 603、 接入网设备向所述小区标识对应的小区广播携带所述移动性管理网元标 识的广播消息。
需要说明的是， 保证用户设备在该所述小区标识对应的小区内接入的方法可以是： ( 1 )接入网设备在小区广播消息中可以携带用户设备所属的群组标识， 如果所述 用户设备所属的群组标识包含于（或者相同）小区广播消息中的用户设备所属的群组标 识， 则所述用户设备选择所述小区接入。
其中， 用户设备所属的群组标识是指用户设备所属的群组或用户设备组标识， 或者 是用户设备所属的行业用户标识， 或者是用户设备所属的 MTC User或 MTC Subscriber 标识， 或者其他标识用户设备所属的群组或用户设备组的标识， 本专利不作限制。
( 2 )接入网设备在小区广播消息中广播所述小区的 CSG ID ( Closed Subscriber Group Identifier ) , 如果所述用户设备的 CSG ID与所述小区的 CSG ID一致， 则所述用 户设备选择所述小区接入。
步骤 604、 用户设备接收到广播消息后， 如果广播消息中的移动性管理网元的标识 与用户设备中移动性管理网元的标识一致， 则用户设备可重新建立业务连接。
本实施例通过广播消息触发需要建立业务连接的用户设备建立业务连接，可以实现 需要发起业务建立的用户设备快速地建立业务连接， 恢复具有高可靠性业务的用户设备 的业务连接的有效性， 保证高可靠性业务需求的用户设备的业务连接。 本实施例无需网 络设备首先根据用户设备的特征信息确定需要建立业务连接用户设备， 而由用户设备自 身确定是否发起业务连接， 可以减轻网络设备的负担。 本实施例通过向特定的小区发送 广播消息， 可以提高广播信息的针对性。
图 7为本发明网络设备实施例一的结构示意图。 如图 7所示， 本实施例网络设备包 括故障信息获取模块 1、 特征信息获取模块 2和通知模块 3 , 其中，
故障信息获取模块 1 , 用于获知移动性管理网元故障或复位；
特征信息获取模块 2, 用于获知附着于所述移动性管理网元上的用户设备的特征信 息；
通知模块 3 , 用于根据用户设备的特征信息获知附着于所述移动性管理网元上的需 要发起业务建立的用户设备， 通知所述需要发起业务建立的用户设备发起业务建立。
本实施例网络设备可以是接入网设备， 例如， GGSN、 S-GW或 P-GW, 或者， 也 可以是接入网设备， 例如， BSC、 RNC或 eNodeB; 其中， 所述的移动性管理网元可以 是 SGSN或 MME。
本实施例中， 故障信息获取模块 1获知移动性管理网元故障或复位时， 可由特征信 息获取模块 2获知附着于该该故障或复位的移动性管理网元上的用户设备的特征信息， 并通过通知模块 3根据用户设备的特征信息通知需要发起业务建立的用户设备发起业务 建立， 以便需要发起业务建立的用户设备接收到该通知消息后， 发起业务建立， 重新建 立业务连接。 其中， 所述的需要发起业务建立的用户设备可以系统中具有高可靠性业务 需求的用户设备， 如 VIP用户设备， 或起控制作用的用户设备等。
本实施例在移动性管理网元故障或复位时，可根据用户设备的特征信息确定需要发 起业务建立的用户设备， 并通知该需要发起业务建立的用户设备发起业务建立， 建立新 的业务连接， 使得需要发起业务建立的用户设备可快速地建立业务连接， 恢复具有高可 靠性业务的用户设备的业务连接的有效性，保证高可靠性业务需求的用户设备的业务连 接。
图 8A为本发明网络设备实施例二中特征信息获取模块的结构示意图； 图 8B为本 发明网络设备实施例二中通知模块的结构示意图。 本实施例网络设备为网关设备， 可以 是 GGSN、 S-GW或 P-GW, 具体地， 在上述图 7所示实施例技术方案的基础上， 如图 8A所示， 本实施例中的特征信息获取模块 2可包括第一用户确定单元 20, 以及第一特 征获取单元 21、 第二特征获取单元 22或者第三特征获取单元 23 , 其中，
第一用户确定单元 20, 用于获知附着于所述移动性管理网元的用户设备； 第一特征获取单元 21 ,用于从用户设备的上下文信息中，获知所述用户设备的特征 信息； 或者，
第二特征获取单元 22,用于从网关设备的配置信息中，获知与所述用户设备的标识 信息对应的所述用户设备的特征信息； 或者，
第三特征获取单元 23，用于从网关设备的配置信息中，获知与所述用户设备所属的 群组标识对应的所述用户设备的特征信息。
本实施例中， 当第一用户确定单元 20获知附着于出现故障或复位移动性管理网元 的用户设备后， 可通过第一特征获取单元 21、 第二特征获取单元 22或者第三特征获取 单元 23获知用户设备的特征信息。 其具体获取方法可参考本发明保证业务连接的方法 实施例二， 在此不再赘述。
如图 8B所示，本实施例中的通知模块 3可包括第一触发用户确定单元 30和第一信 息发送单元 31 , 其中：
第一触发用户确定单元 30 ,用于才艮据附着于所述移动性管理网元上的用户设备的特 征信息， 获知附着于所述移动性管理网元上的需要发起业务建立的用户设备；
第一信息发送单元 31 , 用于向正常工作的移动性管理网元发送业务建立指示消息， 所述业务建立指示消息中携带所述需要发起业务建立的用户设备的信息， 以便所述正常 工作的移动性管理网元根据所述用户设备的信息对所述需要发起业务建立的用户设备 进行 IMSI寻呼， 通知所述附着于所述移动性管理网元上的需要发起业务建立的用户设 备在接收到 IMSI寻呼消息后建立业务连接。
本实施例中第一触发用户确定单元 30获知需要发起业务建立的用户设备后， 可由 第一信息发送单元 31通过正常工作的移动性管理网元向需要发起业务建立的用户设备 发送 IMSI寻呼， 通知用户设备发起业务建立， 重新建立业务连接。 其具体实现过程可 参考本发明保证业务的连接方法实施例二， 在此不再赘述。 本实施例通过网关设备根据用户设备的特征信息确定需要发起业务建立的用户设 备，并在移动性管理网元出现故障时，通知需要发起业务建立的用户设备建立业务连接， 可以实现网关设备触发需要发起业务建立的用户设备快速地建立业务连接， 恢复具有高 可靠性业务的用户设备的业务连接的有效性，保证高可靠性业务需求的用户设备的业务 连接。
图 9A为本发明网络设备实施例三中特征信息获取模块的结构示意图； 图 9B为本 发明网络设备实施例三中通知模块的结构示意图。 本实施例网络设备为接入网设备， 可 以是 BSC、 R C或 eNodeB。 具体地， 在上述图 7所示实施例技术方案的基础上， 如图 9A所示， 本实施例中的特征信息获取模块 2可包括第二用户确定单元 24, 以及第四特 征获取单元 25、 第五特征获取单元 26、 第六特征获取单元 27或第七特征获取单元 28, 其巾，
第二用户确定单元 24 , 用于获知附着于所述移动性管理网元的用户设备； 第四特征获取单元 25 ,用于从用户设备的上下文信息中，获知所述用户设备的特征 信息；
第五特征获取单元 26,用于从接入网设备的配置信息中，获知与所述用户设备的群 组标识对应的所述用户设备的特征信息；
第六特征获取单元 27,用于从接入网设备的配置信息中，获知与所述用户设备接入 的小区标识对应的所述用户设备的特征信息
第七特征获取单元 28 , 用于从所述用户设备发送的 R C消息中， 获知所述用户设 备的特征信息。
本实施例中， 第二用户确定单元 24获知附着于出现复位的移动性管理网元后， 可 通过第四特征获取单元 25、 第五特征获取单元 26、 第六特征获取单元 27或第七特征获 取单元 28获知用户设备的特征信息。 其具体的获取方法可参考本发明保证业务连接的 方法实施例三和四， 在此不再赘述。
如图 9B所示， 本实施例中的通知模块 3可包括第二触发用户确定单元 32, 以及第 二信息发送单元 33或第三信息发送单元 34, 其中，
第二触发用户确定单元 32,用于才艮据附着于所述移动性管理网元上的用户设备的特 征信息， 确定附着于所述移动性管理网元上的需要发起业务建立的用户设备；
第二信息发送单元 33 , 用于向所述需要发起业务建立的用户设备进行 IMSI寻呼， 以便所述需要发起业务建立的用户设备在接收到 IMSI寻呼消息后建立业务连接； 第三信息发送单元 34,用于向所述需要发起业务建立的用户设备发送携带所述移动 性管理网元故障或复位原因值的 R C释放请求消息， 以便所述需要发起业务建立的用 户设备在接收到所述 R C释放请求消息后建立业务连接。
本发明实施例可通过第二触发用户确定单元 32获知需要发起业务建立的用户设备 后， 可由第二信息发送单元 33向需要发起业务建立的用户设备发起 IMSI寻呼， 通知用 户设备发起业务建立， 或者， 由第三信息发送单元 34发送 R C释放请求消息， 通知用 户设备发起业务建立。 其具体发送过程可参考本发明保证业务连接的方法实施例三或 四， 在此不再赘述。
本实施例通过接入网设备根据用户设备的特征信息确定需要发起业务建立的用户 设备， 并在移动性管理网元出现故障或复位时， 通知需要发起业务建立的用户设备建立 业务连接， 可以实现接入网设备触发需要发起业务建立的用户设备快速地建立业务连 接， 恢复具有高可靠性业务的用户设备的业务连接的有效性， 保证高可靠性业务需求的 用户设备的业务连接。
图 10为本发明网络设备实施例四的结构示意图。本实施例网络设备为接入网设备， 且本实施例接入网设备可在移动性管理网元故障时，通过发送广播消息通知用户设备建 立业务连接。 具体地， 如图 10所示， 本实施例网络设备包括故障信息获取模块 4和广 播模块 5 , 其中，
故障信息获取模块 4, 用于获知移动性管理网元故障或复位；
广播模块 5 , 用于广播携带所述移动性管理网元标识的广播消息， 以使用户设备接 收到所述广播消息后，如果广播消息中的移动性管理网元的标识与用户设备中的移动性 管理网元的标识一致， 则发起业务建立。
本实施例中， 故障信息获取模块 4获知移动性管理网元故障或复位时， 可通过广播 模块 5广播携带所述移动性管理网元标识的广播消息， 以通知附着于该移动性管理网元 的用户设备建立业务连接， 其中， 用户设备接收到该广播消息后， 且用户设备上的移动 性管理网元标识与广播消息中携带的移动性管理网元标识相同时，用户设备也可根据自 身的需要选择是否建立业务连接，其具体实现过程可参考上述本发明保证业务连接的方 法实施例五， 在此不再赘述。
本实施例通过广播消息触发需要建立业务连接的用户设备建立业务连接，可以实现 需要发起业务建立的用户设备快速地建立业务连接，恢复具有高可靠性业务的用户设备 的业务连接的有效性， 保证高可靠性业务需求的用户设备的业务连接。 本实施例无需网 络设备首先根据用户设备的特征信息确定需要建立业务连接用户设备， 而由用户设备自 身确定是否发起业务连接， 可以减轻网络设备的负担。
图 11为本发明网络设备实施例五中广播模块的结构示意图。在上述图 10所示实施 例技术方案的基础上， 如图 11所示， 所述的广播模块 5具体可包括小区标识获取单元 50 和广播单元 51 , 其中，
小区标识获取单元 50,用于根据配置的小区标识与用户设备的特征信息之间的对应 关系， 获知所述需要发起业务建立的用户设备所在小区的小区标识；
广播单元 51 ,用于向所述小区标识对应的小区广播携带所述移动性管理网元标识的 广播消息， 以使用户设备接收到所述广播消息后， 如果广播消息中的移动性管理网元的 标识与用户设备中的移动性管理网元的标识一致， 则发起业务建立。
本实施中， 当获知移动性管理网元故障或复位时， 可由小区标识获取单元 50获知 需要发起业务建立的用户设备所在小区的小区标识， 并由广播单元 51在该小区标识对 应的特定小区内广播携带所述移动性管理网元标识的广播消息，使得在该特定小区内附 着于该移动性管理网元的用户设备在接收到广播消息后， 建立业务连接。 其具体实现可 参考上述本发明保证业务连接的方法实施例六， 在此不再赘述。
本实施例通过广播消息触发需要建立业务连接的用户设备建立业务连接，可以实现 需要发起业务建立的用户设备快速地建立业务连接， 恢复具有高可靠性业务的用户设备 的业务连接的有效性， 保证高可靠性业务需求的用户设备的业务连接。 本实施例无需网 络设备首先根据用户设备的特征信息确定需要建立业务连接用户设备， 而由用户设备自 身确定是否发起业务连接， 可以减轻网络设备的负担， 且本实施例通过向特定的小区发 送广播消息， 可以提高广播消息的针对性。
图 12为本发明用户设备实施例的结构示意图。 如图 12所示， 本实施例用户设备包 括消息接收模块 6和业务连接模块 7 , 其中，
消息接收模块 6, 用于接收网络设备发送的通知消息， 所述通知消息为所述网络设 备在移动性管理网元故障或复位时，通知附着于所述移动性管理网元上的需要发起业务 建立的用户设备发起业务建立的消息；
业务连接模块 7 , 用于根据所述通知消息发起业务建立。
其中， 所述的网络设备可以是接入网设备， 例如， GGSN、 S-GW或 P-GW, 或者， 也可以为接入网设备， 例如， BSC、 R C或 eNodeB。
本实施中， 消息接收模块 6可用于接收网关设备通过移动性管理网元发起的 IMSI 寻呼消息； 或者， 用于接收接入网设备发起的 IMSI寻呼消息； 用于接收接入网设备发 送的携带移动性管理网元故障或复位原因值的 RRC释放清求消息。 相应地， 业务连接 模块 7可根据消息接收模块 6接收的消息， 建立业务连接， 具体地， 业务连接模块 7可 用于接收到所述网关设备通过移动性管理网元发起的 IMSI寻呼消息后，发起业务建立； 或者， 用于接收到所述接入网设备发起的 IMSI寻呼消息后， 发起业务建立； 或者， 用 于接收到所述接入网设备发送的携带移动性管理网元故障或复位原因值的 R C释放请 求消息后， 根据 RRC释放清求消息中的原因值， 发起业务建立。
其中， 所述业务连接模块具体用于发起附着流程， 并根据所述附着流程中的 PDN 连接建立业务连接； 或者， 具体用于发起附着流程和 PDP上下文激活流程， 根据所述 PDP上下文激活流程建立业务连接。
此外， 本实施中， 消息接收模块 6也可具体用于接收接入网设备发送的携带发生故 障或复位的移动性管理网元标识的广播消息； 相应地， 业务连接模块 7可具体用于当所 述广播消息中包含的移动性管理网元的标识与用户设备中的移动性管理网元的标识相 同时， 发起业务建立。
本实施例可根据网络设备发送的通知消息建立业务连接，使得用户设备附着的移动 性管理网元故障或复位时， 通过接收到的通知消息建立业务连接， 可快速有效地恢复业 务连接的有效性， 保证用户设备的高可靠性业务需求。
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步骤可以通过程 序指令相关的硬件来完成， 前述的程序可以存储于一计算机可读取存储介质中， 该程序 在执行时， 执行包括上述方法实施例的步骤； 而前述的存储介质包括： ROM、 RAM. 磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对其限制； 尽管 参照前述实施例对本发明进行了详细的说明， 本领域的普通技术人员应当理解： 其依然 可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替 换； 而这些修改或者替换， 并不使相应技术方案的本质脱离本发明各实施例技术方案的 精神和范围。

Claims

权利要求
1、 一种保证业务连接的方法， 其特征在于， 包括：
获知移动性管理网元故障或复位；
获知附着于所述移动性管理网元上的用户设备的特征信息；
根据用户设备的特征信息获知附着于所述移动性管理网元上的需要发起业务建立 的用户设备， 通知所述需要发起业务建立的用户设备发起业务建立。
2、 根据权利要求 1 所述的方法， 其特征在于， 所述获知附着于所述移动性管理网 元上的用户设备的特征信息包括：
网关设备获知附着于所述移动性管理网元的用户设备；
所述网关设备从用户设备的上下文信息中， 获知所述用户设备的特征信息； 或者， 所述网关设备从网关设备的配置信息中，获知与所述用户设备的标识信息对应的所述用 户设备的特征信息； 或者， 所述网关设备从网关设备的配置信息中， 获知与所述用户设 备所属的群组标识对应的所述用户设备的特征信息。
3、 根据权利要求 2所述的方法， 其特征在于， 所述根据用户设备的特征信息获知 附着于所述移动性管理网元上的需要发起业务建立的用户设备，通知所述需要发起业务 建立的用户设备发起业务建立包括：
所述网关设备根据附着于所述移动性管理网元上的用户设备的特征信息，获知附着 于所述移动性管理网元上的需要发起业务建立的用户设备；
所述网关设备向正常工作的移动性管理网元发送业务建立指示消息， 所述业务建立 指示消息中携带所述需要发起业务建立的用户设备的信息， 以使所述正常工作的移动性 管理网元根据所述用户设备的信息对所述需要发起业务建立的用户设备进行 IMSI 寻 呼， 通知所述附着于所述移动性管理网元上的需要发起业务建立的用户设备在接收到 IMSI寻呼消息后建立业务连接。
4、 根据权利要求 1 所述的方法， 其特征在于， 所述获知附着于所述移动性管理网 元上的用户设备的特征信息包括：
接入网设备获知附着于所述移动性管理网元的用户设备；
所述接入网设备从用户设备的上下文信息中，获知所述用户设备的特征信息；或者， 所述接入网设备从接入网设备的配置信息中，获知与所述用户设备的群组标识对应的所 述用户设备的特征信息； 或者， 所述接入网设备从接入网设备的配置信息中， 获知与所 述用户设备接入的小区标识对应的所述用户设备的特征信息； 或者， 所述接入网设备从 所述用户设备发送的 R C消息中， 获知所述用户设备的特征信息。
5、 根据权利要求 4所述的方法， 其特征在于， 所述根据用户设备的特征信息获知 附着于所述移动性管理网元上的需要发起业务建立的用户设备，通知所述需要发起业务 建立的用户设备发起业务建立包括：
所述接入网设备根据附着于所述移动性管理网元上的用户设备的特征信息，确定附 着于所述移动性管理网元上的需要发起业务建立的用户设备；
所述接入网设备向所述需要发起业务建立的用户设备进行 IMSI寻呼， 通知所述需 要发起业务建立的用户设备在接收到 IMSI寻呼消息后建立业务连接； 或者， 所述接入 网设备向所述需要发起业务建立的用户设备发送携带所述移动性管理网元故障或复位 原因值的 R C 释放请求消息， 通知所述需要发起业务建立的用户设备在接收到所述 R C释放请求消息后建立业务连接。
6、 一种保证业务连接的方法， 其特征在于， 包括：
接入网设备获知移动性管理网元故障或复位；
接入网设备广播携带所述移动性管理网元标识的广播消息，以使用户设备接收到所 述广播消息后，如果广播消息中的移动性管理网元的标识与用户设备中的移动性管理网 元的标识一致， 则发起业务建立。
7、 根据权利要求 6所述的方法， 其特征在于， 所述接入网设备广播携带所述移动 性管理网元标识的广播消息包括：
接入网设备根据配置的小区标识与用户设备的特征信息之间的对应关系，获知需要 发起业务建立的用户设备所在小区的小区标识；
所述接入网设备向所述小区标识对应的小区广播携带所述移动性管理网元标识的 广播消息。
8、 一种网络设备， 其特征在于， 包括：
故障信息获取模块， 用于获知移动性管理网元故障或复位；
特征信息获取模块， 用于获知附着于所述移动性管理网元上的用户设备的特征信 息；
通知模块， 用于根据用户设备的特征信息获知附着于所述移动性管理网元上的需要 发起业务建立的用户设备， 通知所述需要发起业务建立的用户设备发起业务建立。
9、 根据权利要求 8所述的网络设备， 其特征在于， 所述特征信息获取模块包括： 第一用户确定单元及如下单元中的任一个：第一特征获取单元、第二特征获取单元、 第三特征获取单元；
所述第一用户确定单元用于获知附着于所述移动性管理网元的用户设备； 所述第一特征获取单元用于从用户设备的上下文信息中，获知所述用户设备的特征 信息；
所述第二特征获取单元用于从网关设备的配置信息中，获知与所述用户设备的标识 信息对应的所述用户设备的特征信息；
所述第三特征获取单元用于从网关设备的配置信息中，获知与所述用户设备所属的 群组标识对应的所述用户设备的特征信息。
10、 根据权利要求 9所述的网络设备， 其特征在于， 所述通知模块包括： 第一触发用户确定单元， 用于才艮据附着于所述移动性管理网元上的用户设备的特征 信息， 获知附着于所述移动性管理网元上的需要发起业务建立的用户设备；
第一信息发送单元， 用于向正常工作的移动性管理网元发送业务建立指示消息， 所 述业务建立指示消息中携带所述需要发起业务建立的用户设备的信息， 以便所述正常工 作的移动性管理网元根据所述用户设备的信息对所述需要发起业务建立的用户设备进 行 IMSI寻呼， 通知所述附着于所述移动性管理网元上的需要发起业务建立的用户设备 在接收到 IMSI寻呼消息后建立业务连接。
11、 根据权利要求 8所述的网络设备， 其特征在于， 所述特征信息获取模块包括： 第二用户确定单元及如下单元中的任一个：第四特征获取单元、第五特征获取单元、 第六特征获取单元、 第七特征获取单元；
所述第二用户确定单元用于获知附着于所述移动性管理网元的用户设备； 所述第四特征获取单元用于从用户设备的上下文信息中，获知所述用户设备的特征 信息；
所述第五特征获取单元用于从接入网设备的配置信息中，获知与所述用户设备的群 组标识对应的所述用户设备的特征信息；
所述第六特征获取单元用于从接入网设备的配置信息中，获知与所述用户设备接入 的小区标识对应的所述用户设备的特征信息；
所述第七特征获取单元用于从所述用户设备发送的 R C消息中， 获知所述用户设 备的特征信息。
12、 根据权利要求 11所述的网络设备， 其特征在于， 所述通知模块包括： 第二触发用户确定单元及如下单元中的任一个： 第二信息发送单元、 第三信息发送 单元；
所述第二触发用户确定单元用于根据附着于所述移动性管理网元上的用户设备的 特征信息， 确定附着于所述移动性管理网元上的需要发起业务建立的用户设备；
所述第二信息发送单元用于向所述需要发起业务建立的用户设备进行 IMSI寻呼， 通知所述需要发起业务建立的用户设备在接收到 IMSI寻呼消息后建立业务连接； 所述第三信息发送单元用于向所述需要发起业务建立的用户设备发送携带所述移 动性管理网元故障或复位原因值的 R C释放请求消息， 通知所述需要发起业务建立的 用户设备在接收到所述 RRC释放请求消息后建立业务连接。
13、 一种网络设备， 其特征在于， 包括：
故障信息获取模块， 用于获知移动性管理网元故障或复位；
广播模块， 用于广播携带所述移动性管理网元标识的广播消息， 以使用户设备接收 到所述广播消息后，如果广播消息中的移动性管理网元的标识与用户设备中的移动性管 理网元的标识一致， 则发起业务建立。
14、 根据权利要求 13所述的网络设备， 其特征在于， 所述广播模块包括： 小区标识获取单元， 用于根据配置的小区标识与用户设备的特征信息之间的对应关 系， 获知所述需要发起业务建立的用户设备所在小区的小区标识；
广播单元， 用于向所述小区标识对应的小区广播携带所述移动性管理网元标识的广 播消息， 以使用户设备接收到所述广播消息后， 如果广播消息中的移动性管理网元的标 识与用户设备中的移动性管理网元的标识一致， 则发起业务建立。
15、 一种用户设备， 其特征在于， 包括：
消息接收模块， 用于接收网络设备发送的通知消息， 所述通知消息为所述网络设备 在移动性管理网元故障或复位时，通知附着于所述移动性管理网元上的需要发起业务建 立的用户设备发起业务建立的消息；
业务连接模块， 用于根据所述通知消息发起业务建立。
16、 根据权利要求 15所述的用户设备， 其特征在于， 所述消息接收模块具体用于 接收接入网设备发送的携带发生故障或复位的移动性管理网元标识的广播消息；
所述业务连接模块具体用于当所述广播消息中包含的移动性管理网元的标识与用 户设备中的移动性管理网元的标识相同时， 发起业务建立。
17、 根据权利要求 15所述的用户设备， 其特征在于， 所述业务连接模块具体用于 发起附着流程， 并根据所述附着流程中的 PDN连接建立业务连接； 或者， 所述业务连接模块具体用于发起附着流程和 PDP上下文激活流程， 根据所述 PDP 上下文激活流程建立业务连接。
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