WO2016119262A1 - Procédé de reprise sur sinistre de service, dispositif associé et système de communication - Google Patents

Procédé de reprise sur sinistre de service, dispositif associé et système de communication Download PDF

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Publication number
WO2016119262A1
WO2016119262A1 PCT/CN2015/072049 CN2015072049W WO2016119262A1 WO 2016119262 A1 WO2016119262 A1 WO 2016119262A1 CN 2015072049 W CN2015072049 W CN 2015072049W WO 2016119262 A1 WO2016119262 A1 WO 2016119262A1
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mme
attached
serving
path
identifier
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PCT/CN2015/072049
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English (en)
Chinese (zh)
Inventor
陈波
范昱
孙晓姬
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华为技术有限公司
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Priority to PCT/CN2015/072049 priority Critical patent/WO2016119262A1/fr
Priority to CN201580033581.1A priority patent/CN106465094B/zh
Publication of WO2016119262A1 publication Critical patent/WO2016119262A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a service disaster tolerance method, related device, and communication system.
  • a Mobility Management Entity (MME) pool is a plurality of MMEs serving the same radio area at the same time.
  • MME Mobility Management Entity
  • All the base stations in the pool are interconnected, and the MME in the MME Pool implements resource sharing and service load sharing.
  • the existing service disaster recovery method is ineffective.
  • the UE is attached to the current MME to perform the called service of the LTE-based voice (VoLTE over LTE, VoLTE)
  • VoLTE LTE over LTE
  • the MME is unable to process the operation related to the called service of the UE's VoLTE, and the called service of the VoLTE of the UE fails.
  • the normal operation is performed only after the UE reattaches to a working MME in the MME pool area.
  • the MME provides the UE with a service corresponding to the VoLTE called, so that the VoLTE called service of the UE is restored.
  • the VoLTE called service of the UE cannot be successfully successful at one time, and the time required for the UE to reattach from the failed MME to the MME that works normally in the MME pool area is long, resulting in a poor user experience.
  • the embodiment of the present invention provides a service disaster tolerance method, a related device, and a communication system, which solves the problem that the service disaster tolerance effect is poor when the MME attached to the UE fails.
  • an embodiment of the present invention provides a method for service disaster tolerance, where the method includes:
  • the serving MME receives the query request message sent by the network element, where the query request message is used to request the MME attached to the UE to obtain the information corresponding to the service of the UE.
  • the query request message includes an identifier of the MME to which the UE is attached and an identifier of the UE, where the MME attached to the UE and the serving MME are located in the same MME pool area;
  • the serving MME determines information corresponding to the service of the UE according to the user information of the UE, and sends an inquiry response message to the network element, where the query response message includes information corresponding to the service of the UE.
  • the method further includes:
  • the serving MME receives the user information of the UE and the identifier of the UE that are sent by the MME attached to the UE, and records the correspondence between the user information of the UE and the identifier of the UE;
  • the acquiring, by the serving MME, the user information of the UE according to the identifier of the UE specifically includes:
  • the serving MME acquires user information of the UE saved by the serving MME according to the identifier of the UE.
  • the acquiring, by the serving MME, the user information of the UE according to the identifier of the UE includes:
  • the serving MME sends a broadcast request message to all MMEs in the MME pool area, where the broadcast request message includes an identifier of the UE, and the broadcast message is used to request to acquire user information of the UE.
  • the serving MME receives a broadcast response message of the backup MME of the MME to which the UE is attached, and the broadcast response message includes user information of the UE.
  • the serving MME obtains the user information of the UE according to the identifier of the UE, the method also includes:
  • the MME is an MME that provides services for the UE after the MME attached to the UE fails.
  • the serving MME determines, according to the identifier of the MME to which the UE is attached, that the serving MME is after the MME attached to the UE fails.
  • the MME that provides the service for the UE specifically includes:
  • the serving MME determines that the MME of the pre-configured MME includes the MME of the UE, and determines the MME that serves the UE when the MME attached to the UE fails after the serving MME is determined.
  • the home user register HSS passes the routing proxy node DRA with the serving MME and the UE If the attached MME is connected, the network element is the DRA; if the HSS is directly connected to the serving MME and the MME to which the UE is attached, the network element is the HSS.
  • the query response message further includes an identifier of the MME to which the UE is attached.
  • an embodiment of the present invention provides a method for service disaster tolerance, where the method includes:
  • the network element Obtaining, by the network element, the first path set and the second path set corresponding to the identifier of the destination mobility management entity MME, where the first path set and the second path set each include at least one path, the first path
  • the path in the set is a path from the network element to the destination MME
  • the path in the second path set is a path from the network element to a serving MME
  • the serving MME is generated when the destination MME
  • the MME that provides the service to the user equipment UE that is attached to the target MME does not pass the serving MME
  • the path in the second path set does not pass the destination.
  • the MME, the serving MME and the destination MME are located in the same pool area;
  • the query request message is used to request the MME attached to the UE to obtain information corresponding to the service of the UE, where the query request message includes an identifier of the MME attached to the UE and an identifier of the UE, where The MME attached to the UE is the destination MME;
  • the network element After the network element fails to send the query request message through all paths in the first path set, the network element sends the query request message by using a path in the second path set;
  • the network element receives the query response message sent by the serving MME, where the query response message includes information corresponding to the service of the UE.
  • the network element is the DRA;
  • the HSS is directly connected to the serving MME and the MME to which the UE is attached, and the network element is the HSS.
  • an embodiment of the present invention provides a serving MME, where the serving MME includes: a receiving unit, an obtaining unit, a determining unit, and a sending unit;
  • the receiving unit is configured to: after the fault of the mobility management entity MME to which the user equipment UE is connected, receive a query request message sent by the network element, where the query request message is used to request the MME attached to the UE to acquire the service of the UE Corresponding information, the query request message includes an identifier of the MME to which the UE is attached, and an identifier of the UE, where the MME attached to the UE and the serving MME are located in the same MME pool area;
  • the acquiring unit is configured to acquire user information of the UE according to the identifier of the UE;
  • a determining unit configured to determine, according to user information of the UE, information corresponding to the service of the UE;
  • the sending unit is configured to send a query response message to the network element, where the query response message includes information corresponding to the service of the UE.
  • the receiving unit is further configured to: receive user information of the UE and an identifier of the UE that are sent by an MME attached to the UE, and record the UE Correspondence between the user information and the identifier of the UE;
  • the obtaining unit is specifically configured to: acquire the service according to the identifier of the UE User information of the UE saved by the MME.
  • the sending unit is further configured to:
  • the receiving unit is further configured to: receive a broadcast response message of the backup MME of the MME to which the UE is attached, where the broadcast response message includes user information of the UE.
  • the determining unit is further configured to:
  • the serving MME is an MME that provides services for the UE after the MME attached to the UE fails.
  • the determining unit is specifically configured to: determine, by determining, that the identifier of the pre-configured MME includes the identifier of the MME to which the UE is attached.
  • the home user register HSS passes the routing proxy node DRA with the serving MME and the UE If the attached MME is connected, the network element is the DRA; if the HSS is directly connected to the serving MME and the MME to which the UE is attached, the network element is the HSS.
  • the query response message further includes an identifier of the MME to which the UE is attached.
  • an embodiment of the present invention provides a network element, where the network element includes: an obtaining unit, a sending unit, and a receiving unit;
  • the acquiring unit is configured to acquire a first path set and a second path set corresponding to the identifier of the destination mobility management entity MME, where the first path set and the second path set each include at least one path,
  • the road in the first path set The path is the path from the network element to the destination MME, and the path in the second path set is a path from the network element to the serving MME, and the serving MME is after the destination MME fails.
  • the serving MME and the destination MME are located in the same pool area;
  • the sending unit is configured to send, by using the path in the first path set, a query request message, where the query request message is used to request, by the MME attached to the UE, information about acquiring a service of the UE, where The query request message includes an identifier of the MME to which the UE is attached and an identifier of the UE, where the MME attached to the UE is the destination MME;
  • the sending unit is further configured to: after the sending unit fails to send the query request message by using all paths in the first path set, send the query request message by using a path in the second path set;
  • the receiving unit is configured to receive a query response message sent by the serving MME, where the query response message includes information corresponding to the service of the UE.
  • the network element is the DRA;
  • the HSS is directly connected to the serving MME and the MME to which the UE is attached, and the network element is the HSS.
  • an embodiment of the present invention provides a serving MME, where the serving MME includes: a receiver, a processor, a bus, a memory, and a transmitter;
  • the receiver is configured to: after the fault of the mobility management entity MME to which the user equipment UE is connected, receive a query request message sent by the network element, where the query request message is used to request the MME attached to the user equipment UE to acquire the service of the UE Corresponding information, the query request message includes an identifier of the UE, and the MME attached to the UE and the serving MME are located in the same MME pool area;
  • the sender is configured to send a query response message to the network element, where the query response message includes information corresponding to the service of the UE.
  • an embodiment of the present invention provides a network element, where the network element includes: a receiver, a processor, a bus, a memory, and a transmitter;
  • the processor acquires, by using the bus, an instruction in the memory, where the first path set and the second path set corresponding to the identifier of the destination mobility management entity MME are acquired, where the first path set and the The second path set includes at least one path, the path in the first path set is a path from the network element to the destination MME, and the path in the second path set is from the network element a path to the serving MME, where the serving MME is an MME that provides a service to the user equipment UE attached to the destination MME after the destination MME fails, and the path in the first path set does not pass the Serving the MME, the path in the second path set does not pass through the destination MME, and the serving MME and the destination MME are located in the same pool area;
  • the sender is configured to send, by using the path in the first path set, a query request message, where the query request message is used to request, by the MME attached to the UE, information about the service of the UE, where
  • the query request message includes an identifier of the MME to which the UE is attached and an identifier of the UE;
  • the sender After the sender fails to send the query request message through all the paths in the first path set, the sender sends the query request message by using a path in the second path set;
  • the receiver is configured to receive a query response message sent by the serving MME, where the query response message includes information corresponding to the service of the UE.
  • the embodiment of the present invention provides a communication system, where the communication system includes at least the MME according to the third aspect, or the MME according to any one of the possible implementation manners of the third aspect, and the fourth aspect.
  • the communication system includes at least the MME as described in the fifth aspect, and the sixth party The network element described above.
  • the embodiment of the present invention provides a service disaster tolerance method, a related device, and a communication system, which solves the problem that the service disaster tolerance of the prior art is poor.
  • the UE when the MME attached to the UE fails, the UE exists.
  • the HSS or the DRA sends the query request message of the HSS to the serving MME, and the serving MME obtains the user information of the UE according to the identifier of the UE, and obtains the information corresponding to the service of the UE by using the user information of the UE, and the The information corresponding to the service of the UE is sent to the HSS, thereby avoiding the problem that the disaster recovery effect caused by the UE's service cannot be successful once the MME attached to the UE fails.
  • 1 is a schematic diagram of an LTE network architecture
  • FIG. 2 is a flow chart of a method for service disaster tolerance
  • FIG. 3 is a schematic diagram of a networking relationship between an HSS and an MME
  • FIG. 4 is a flowchart of another method for service disaster tolerance
  • FIG. 5 is a flowchart of another method for service disaster tolerance
  • FIG. 6 is a schematic diagram of a serving MME
  • FIG. 7 is a schematic diagram of a network element
  • FIG. 8 is a schematic diagram of another network element or another serving MME.
  • an LTE network architecture is exemplarily described.
  • MME1, MME2, and MME3 form an MME Pool, a Serving Gateway (SGW), and The Packet Data Network Gateway (PGW) forms a Gateway Pool (GW Pool).
  • SGW Serving Gateway
  • PGW Packet Data Network Gateway
  • GW Pool Gateway Pool
  • HSS Home Subscriber Server
  • each mobile communication device is connected to a base station in the LTE access network, and the base station in the access network is connected to each MME in the MME Pool.
  • the HSS actually has a connection relationship with each MME in the MME Pool, and the MMEs in the MME Pool are connected to each other.
  • the HSS when there is a VoLTE called service of the UE1, the HSS needs to query the information of the current domain of the UE1, that is, whether the UE1 is currently in a packet switching (PS) domain or a circuit switching (CS). The information of the domain, at this time, the HSS sends a query request message to the MME1 to which the UE1 is attached to request the acquisition of the above information of the UE1.
  • PS packet switching
  • CS circuit switching
  • the UE1 it is necessary to wait for the UE1 to re-attach to a working MME in the MME Pool by actively initiating a service request. For example, after the MME2, the VoLTE called service of the UE1 can be performed normally, but the UE1 needs to reattach to a normal MME. Longer time, resulting in a poor user experience.
  • the embodiment of the present invention provides a service disaster tolerance method, so that the network element such as the HSS or the Diameter Routing Agent (DRA) can obtain the identifier of the MME1.
  • the network element such as the HSS or the Diameter Routing Agent (DRA) can obtain the identifier of the MME1.
  • Two path sets one of which is a set of paths from the network element to the MME1, and the other path is a set of paths from the network element to the MME2 (the MME2 is as described)
  • the MME that provides the service to the UE attached to the MME1 the network element may send a query request message to the MME1 by using the path of the network element to the MME1 to request acquisition.
  • the MME1 sends a fault, and the network element can send a query to the MME2 by using the path of the network element to the MME2.
  • the request message the MME2 may query the user information of the UE according to the identifier information of the UE included in the query request message, such as the IMSI information of the UE, and query the current domain of the UE from the user information of the UE. Information and send information about the domain in which the UE is currently located to the HSS.
  • the user information of the UE includes the subscription data information of the UE, the information corresponding to the service of the UE, and the like.
  • the MME may obtain the processing from the user information of the UE. The information needed for these businesses.
  • an embodiment of the present invention provides a method for service disaster tolerance, where the method includes:
  • the serving MME After the fault of the mobility management entity MME that is attached to the user equipment UE, the serving MME receives the query request message sent by the network element, where the query request message is used to request the MME attached to the UE to obtain the service corresponding to the service of the UE. And the MME and the serving MME that are attached to the UE are located in the same MME pool area.
  • the information corresponding to the service of the UE refers to information required by the HSS to process the service when the service of the UE exists, for example, when the service of the UE is a VoLTE called service.
  • the information corresponding to the service of the UE is information about a domain where the UE is currently located.
  • a networking relationship between an HSS and an MME is exemplarily described.
  • the HSS and the MME are configured by a Diameter Routing Agent (DRA) and the MME pool area as shown in FIG.
  • DRA Diameter Routing Agent
  • the network element is the DRA
  • the HSS is directly connected to the MME in the MME pool area
  • the network element is the HSS.
  • the HSS when the HSS needs to query the information corresponding to the service of the UE, the HSS sends a query request message to the MME attached to the UE, where the query request is cancelled.
  • the information includes the identifier of the UE, such as the International Mobile Subscriber Identification Number (IMSI) of the UE.
  • IMSI International Mobile Subscriber Identification Number
  • the HSS or the DRA sends the query request message to a normal MME in the MME pool area, such as MME2, as the serving MME of UE1.
  • the serving MME acquires user information of the UE according to the identifier of the UE.
  • the MME2 After receiving the query request message, the MME2 first determines, according to the identifier of the UE, whether the user information of the UE corresponding to the identifier of the UE is stored, and the user information of the UE includes the subscription data information of the UE, where the UE The information corresponding to the service, etc., when there is a UE service, such as a VoLTE called service of the UE, the MME may obtain, from the user information of the UE, information required by the HSS to process the service, that is, the UE requested by the query request message. Information corresponding to the business.
  • a UE service such as a VoLTE called service of the UE
  • the MME2 If the MME2 stores the user information of the UE, the MME2 acquires the user information of the UE that is saved by the serving MME according to the identifier of the UE, and if the MME2 does not store the user information of the UE, The serving MME sends a broadcast request message to all MMEs in the MME pool area, where the broadcast request message includes the identifier of the UE, and the broadcast message is used to request to obtain user information of the UE; only the backup MME of the MME1 After receiving the broadcast message, the user information of the UE is obtained according to the identifier of the UE, and a broadcast response message is sent to the MME2, where the broadcast response message includes user information of the UE.
  • each MME obtains in advance the backup relationship of all MMEs in the pool area and the interface information of each MME.
  • the MME3 is the backup MME of the MME1
  • the MME2 is the backup MME of the MME3
  • the MME1 is the backup MME of the MME2.
  • the MME1 sends the user information of the UE attached to the MME1 to the MME3 in advance, and the MME3 records the user information of the UE. Correspondence relationship of the identity of the UE.
  • the MME2 determines that the user information of the UE is not stored according to the identifier of the UE after receiving the query request message.
  • the MME2 sends a broadcast message in the MME pool area, and after receiving the broadcast message, the MME 3 acquires the user information of the UE according to the identifier of the UE, and sends a broadcast response message to the MME2, where the broadcast response message is sent.
  • the user information of the UE is included in the user information.
  • the MME2 can directly obtain the saved user information of the UE according to the identifier of the UE.
  • the serving MME determines information corresponding to the service of the UE according to the user information of the UE, and sends an inquiry response message to the network element, where the query response message includes a service corresponding to the service of the UE. information.
  • the MME if the MME 2 obtains the user information of the UE, obtains information corresponding to the service of the UE from the user information of the UE, and sends a query corresponding message to the network element, where the query is performed.
  • the response message includes information corresponding to the service of the UE.
  • the embodiment of the present invention provides a method for service disaster tolerance.
  • the HSS or the DRA sends a query request message for requesting information corresponding to the service of the UE to another MME pool.
  • the working MME serves as the serving MME of the UE, and the serving MME obtains the user information of the UE according to the identifier of the UE, and obtains information corresponding to the service of the UE by using the user information of the UE, and the serving MME sends the information to the HSS.
  • the query response message includes information corresponding to the service of the UE, so that the HSS processes the service of the UE according to the information corresponding to the service of the UE, thereby avoiding the capacity that the UE's service cannot be successfully obtained at one time.
  • the embodiment of the present invention further provides a method for service disaster tolerance, and the method includes:
  • the serving MME receives the query request message sent by the network element, where the query request message is used to request the MME attached to the UE to obtain the service corresponding to the service of the UE.
  • the query request message includes an identifier of an MME to which the UE is attached, and an identifier of the UE, where The MME attached to the UE and the serving MME are located in the same MME pool area.
  • MME1 and MME2 are two MMEs in the MME Pool, and the HSS is respectively connected to the MME1 and the MME2 through the DRA, and the connection relationship is as shown in FIG. As shown in FIG. 3, it is assumed that the MME to which UE1 is attached is MME1.
  • the first path set and the second path set are pre-configured on the DRA, where the path in the first path set is a path from the DRA to the MME1, and the path in the first path set does not pass the MME2 Arriving at MME1, the path in the second path set is a path from the DRA to the MME2, and the path in the second path set does not reach the MME2 through the MME1, where the path in the first path set
  • the priority is greater than the priority of the path in the second set of paths.
  • the HSS When there is a service corresponding to the UE1, such as the VoLTE called service of the UE1, the HSS needs to query the information corresponding to the service of the UE1, such as the information of the domain where the UE1 is currently located.
  • the HSS requests the information corresponding to the service of the UE1 by sending a query request message.
  • the destination MME of the query request message is the MME to which the UE1 is attached, and the query request message includes the identifier of the MME1.
  • the host name of the MME1 or the IP address of the MME1 the query request message carries the identifier of the UE, and after receiving the query request message, the DRA determines the first path set corresponding to the identifier of the MME1.
  • the DRA first passes the path in the first path set to the query because the priority of the path in the first path set is greater than the priority of the path in the second path set
  • the request message is forwarded.
  • the MME1 fails, the DRA fails to forward the query request message through all the paths in the first path set, and the DRA passes the path in the second path set.
  • Query request message to the MME2 the MME2 is the query request message is processed.
  • the DRA-B receives the query request message sent by the HSS for requesting the information corresponding to the service of the UE, and the query request message carries the identifier information of the MME1, which is assumed to be Mme-a
  • DRA-B can pre-configure the paths corresponding to the identifiers of the three MMEs, which are DRA-B ⁇ MME1, DRA-B ⁇ DRA-A ⁇ MME1, and DRA-B ⁇ MME2, wherein the first two paths are in the first path set, the priority is higher than the third path, and the purpose is to be MME1
  • the MME1 is guaranteed to provide the UE1 with a service. Only when the MME1 fails, the MME, that is, the MME2, provides the UE1 with a service.
  • the DRA-B cannot successfully forward the query request message through the first two paths, and the DRA-B forwards the query request message to the MME2 through the third path, and the MME2 queries the query. Request a message for processing.
  • the first path set and the second path set may not be set, and only need to ensure that when the destination MME of the query request message is the MME to which the UE is attached, the The MME that does not pass the identifier of the MME to which the UE is attached is not the MME that is attached to the MME to which the UE is attached, and the priority of the path that is not attached to the MME that is not attached to the UE.
  • the priority of the path to the MME is not limited.
  • the path of the MME that does not pass the MME to the UE and does not pass through the MME may be configured on the HSS. Determining a path of the MME to which the UE is attached to the MME, and setting a priority of the path, so that a path of the MME that does not reach the MME attached to the UE does not have a higher priority than an MME that does not pass the UE attachment The priority of the path of the MME.
  • the Query Request message is sent to the MME to which the UE is attached, and the MME attached to the UE fails to pass the UE after the MME attached to the UE fails.
  • the path of the attached MME to the MME sends a query request message to the MME. Specifically, after the MME attached to the UE is faulty, how to send the query request message to the MME may have multiple methods, which is used by the embodiment of the present invention. Not limited.
  • the serving MME determines, according to the identifier of the MME to which the UE is attached, that the serving MME is the UE after the MME attached to the UE fails.
  • the MME providing the service.
  • the identifier of the MME to which the UE is attached is the host name of the MME to which the UE is attached.
  • the MME to which the UE1 originally attached is the MME1.
  • the MME1 is configured with the identifier of the MME1, such as the host name mme-a of the MME1
  • the MME1 is configured with the identifier of the MME1, such as the host name mme-a of the MME1, and the identifier of the MME2, such as the host name mme-b of the MME2.
  • the MME2 After the MME2 receives the query request message, because the destination MME host name of the query request message is the host name mme-a of the MME to which the UE is attached, and the MME2 determines that the destination host name is the same as its pre-configured host name, The MME 2 processes the query request message.
  • the serving MME acquires user information of the UE according to the identifier of the UE.
  • the serving MME determines information corresponding to the service of the UE according to the user information of the UE, and sends an inquiry response message to the network element, where the query response message includes a service corresponding to the service of the UE. information.
  • the MME2 After querying the information corresponding to the service of the UE, the MME2 sends a query corresponding message to the HSS. Specifically, the MME may send a query response message to the HSS by using the DRA, where the query is related to the message.
  • the information corresponding to the service of the UE is included, so that the HSS processes the service of the UE according to the information corresponding to the service of the UE.
  • the query response message may further include a host name mme-a of the MME to which the UE is attached, so that the HSS does not detect that the MME attached to the UE is faulty, and reduces signaling overhead.
  • the embodiment of the present invention provides a method for service disaster tolerance, by pre-selecting a serving MME in the MME pool area, and configuring an identifier of the MME to which the UE is attached, such as the host name of the MME to which the UE is attached, when the UE is attached.
  • the HSS or the DSA cannot successfully forward the query request message to the MME attached to the UE by using a pre-configured path that does not pass the serving MME to the MME attached to the UE, and the HSS or the DRA through MME that does not pass through the UE attachment
  • the path to the MME forwards the query request message to the serving MME, and the host name of the destination MME in the query request message is the host name of the MME to which the UE is attached, and the UE is also configured to be attached to the MME.
  • the host name of the MME determines that the host name of the destination MME is the same as the host name of the MME, and performs the processing of the query request message, so that the service of the UE can be successfully succeeded once the MME attached to the UE fails.
  • the embodiment of the present invention further provides a method for service disaster tolerance.
  • the method includes:
  • the network element acquires a first path set and a second path set corresponding to the identifier of the destination mobility management entity MME, where the first path set and the second path set each include at least one path, where the a path in a path set is a path from the network element to the destination MME, a path in the second path set is a path from the network element to a serving MME, and the serving MME is when the destination After the MME is faulty, the MME that provides the service to the user equipment UE that is attached to the target MME does not pass through the serving MME, and the path in the second path set does not pass through the path.
  • the MME, the serving MME and the destination MME are located in the same pool area.
  • the DRA-B is the network element, and after receiving the query request message sent by the HSS, the DRA-B determines that the query request message includes the identifier of the MME to which the UE is attached, such as
  • the host name of the MME to which the UE is attached is mme-a, and the MME to which the UE is attached is the MME1, and the path corresponding to the identifiers of the MMEs to which the UE is attached is pre-stored in the DRA-B, in descending order of priority.
  • the path is DRA-B ⁇ MME1, path DRA-B ⁇ DRA-A ⁇ MME1, and path DRA-B ⁇ MME2.
  • the first two paths are the paths in the first path set, and the last path is the path in the second path set.
  • the network element sends, by using the path in the first path set, a query request message, where the query request message is used to request, by the MME attached to the UE, information about the service of the UE, where the query is performed.
  • the request message includes the UE attached The identity of the MME and the identity of the UE.
  • the DRA-B first forwards the query request message through the path DRA-B ⁇ MME1 and the path DRA-B ⁇ DRA-A ⁇ MME1 in the first path set.
  • the DRA-B passes through the first path set. The path to forward the query request message failed.
  • the network element After the network element fails to send the query request message by using all paths in the first path set, the network element sends the query request message by using a path in the second path set.
  • the DRA-B After the DRA-B fails to forward the query request message through all the paths in the first path set, the DRA-B judges that the path in the first path set with the higher priority cannot reach the MME1 directly through the MME2.
  • the request message is sent to the MME1, and the DRA-B forwards the query request message to the next hop of the DRA-B in the path through the path in the second path set, that is, the path DRA-B ⁇ MME2, that is, the MME2, which is pre-configured in the MME2.
  • the MME1 has the host name mme-a, so the MME2 determines that the destination host name in the query request message is the same as the host name of the local device, and the MME2 processes the query request message, thereby avoiding when there is a service corresponding to the UE.
  • the business cannot be a successful one.
  • a link set corresponding to the identifier information of the MME to which the UE is attached may be configured on the network element, where a link of the network element is connected to the UE.
  • MME another link is connected to the MME pre-configured with the MME identity information attached by the UE.
  • MME1 is the MME to which UE1 is attached, and MME2 is pre-selected with the host name of MME1.
  • the priority of the road is lower.
  • the DRA-B when the DRA-B receives the query request message sent by the HSS, it determines that the host name of the destination host is mme-a, and the DRA-B passes the higher priority DRA-B& The MME1 link forwards the query request message. If the MME1 fails, the query request message fails to be forwarded. The DRA-B forwards the query request message through the lower priority DRA-B&MME2 link, and the MME2 receives the query. Request the message and process it.
  • the network element receives the query response message sent by the MME, where the query response message includes information corresponding to the service of the UE.
  • the network element is the DRA.
  • the network element is the HSS.
  • the network element receives the query response message sent by the serving MME, where the query response message includes information corresponding to the service of the UE.
  • the embodiment of the present invention provides a service disaster tolerance method, in which, when there is a service corresponding to the UE, the HSS obtains the information corresponding to the service of the UE by sending a query request message to the MME attached to the UE.
  • the query request message includes an identifier of the MME to which the UE is attached, such as a host name of the MME to which the UE is attached.
  • the DRA or the DRA that receives the query request message sent by the HSS preferentially forwards the query request message by using the path of the MME that does not go through the serving MME to the UE, and in the case that the MME attached to the UE is faulty,
  • the HSS or the DRA fails to forward the query request message, and the HSS or the DRA forwards the query request message to the MME by using a path that does not pass the MME attached by the UE to the serving MME.
  • the service MME pre-configures the identifier of the MME to which the UE is attached, such as the host name of the MME to which the UE is attached, and the service MME determines the query after receiving the query request message sent by the HSS or the DRA.
  • the MME of the UE that is included in the request message is the same as the self-configured host name, so that the query request message is processed, so that when the MME attached to the UE fails, the service of the UE exists, such as the UE.
  • VoLTE is called business
  • pass The service MME processes the service to implement a service success, and solves the problem that the current service disaster tolerance effect is poor.
  • the embodiment of the present invention further provides a service MME, and the service MME includes: a receiving unit 601, an obtaining unit 602, a determining unit 603, and a sending unit 604;
  • the receiving unit 601 is configured to: after the fault of the mobility management entity MME attached to the user equipment UE, receive a query request message sent by the network element, where the query request message is used to request the MME attached to the UE to acquire the UE Information corresponding to the service, the query request message includes an identifier of the MME to which the UE is attached, and an identifier of the UE, where the MME attached to the UE and the serving MME are located in the same MME pool area;
  • the obtaining unit 602 is configured to acquire user information of the UE according to the identifier of the UE.
  • the determining unit 603 is configured to determine, according to user information of the UE, information corresponding to the service of the UE;
  • the sending unit 604 is configured to send an inquiry response message to the network element, where the query response message includes information corresponding to the service of the UE.
  • the receiving unit 601 is further configured to: receive the user information of the UE that is sent by the MME that is attached to the UE, and the identifier of the UE, and record a correspondence between the user information of the UE and the identifier of the UE;
  • the obtaining unit 602 is specifically configured to: obtain the user information of the UE saved by the serving MME according to the identifier of the UE.
  • the sending unit 604 is further configured to:
  • the receiving unit 601 is further configured to: receive a broadcast response message of the backup MME of the MME to which the UE is attached, where the broadcast response message includes the user information of the UE interest.
  • the determining unit 603 is further configured to:
  • the serving MME is an MME that provides services for the UE after the MME attached to the UE fails.
  • the determining unit 603 is configured to: after determining that the MME of the pre-configured MME includes the identifier of the MME to which the UE is attached, and determining the serving MME, when the MME attached to the UE is faulty, The UE provides the served MME.
  • the network element is the DRA; if the HSS is directly related to the serving MME and the The MME to which the UE is attached is connected, and the network element is the HSS.
  • the query response message further includes an identifier of the MME to which the UE is attached.
  • the embodiment of the present invention provides a serving MME, which is a disaster-tolerant MME of an MME that is attached to a UE that is located in the same pool area as the serving MME, and the serving MME is pre-configured with identity information of the MME to which the UE is attached, such as a UE.
  • the host name information of the attached MME when there is a service corresponding to the UE, such as the VoLTE called service of the UE, the HSS needs to query the service of the UE by sending a query request message to the MME attached to the UE.
  • the information of the MME of the query request message is the identifier information of the MME to which the UE is attached.
  • the HSS or the DRA corresponds to the identifier information of the MME to which the UE is attached. All the paths of the MME that do not pass the DR to the MME attached to the UE cannot be successfully forwarded to the MME to which the UE is attached, and the HSS or DRA passes the lower priority.
  • the path of the MME that is attached to the UE to the disaster recovery MME sends the query request message to the DR MME, and the DR MME determines that the identifier of the destination MME is its pre-configured host name.
  • the MME requests the query to cancel The information is processed, so that the service of the UE can be successfully succeeded in the case that the MME attached to the UE is faulty, and the problem that the current service disaster tolerance effect is poor is solved.
  • the embodiment of the present invention further provides a network element, and the network element includes: an obtaining unit 701, a sending unit 702, and a receiving unit 703;
  • the acquiring unit 701 is configured to acquire a first path set and a second path set corresponding to the identifier of the destination mobility management entity MME, where the first path set and the second path set each include at least one path
  • the path in the first path set is a path from the network element to the destination MME
  • the path in the second path set is a path from the network element to a serving MME, where the serving MME is After the destination MME is faulty, the MME that provides the service to the user equipment UE attached to the destination MME does not pass the service MME in the first path set, and the second path set
  • the path does not pass through the destination MME, and the serving MME and the destination MME are located in the same pool area;
  • the sending unit 702 is configured to send, by using the path in the first path set, a query request message, where the query request message is used to request, by the MME attached to the UE, information about the service of the UE, where
  • the query request message includes an identifier of the MME to which the UE is attached and an identifier of the UE;
  • the sending unit 702 is further configured to send the query request message by using a path in the second path set after the sending unit fails to send the query request message through all paths in the first path set. ;
  • the receiving unit 703 is configured to receive a query response message sent by the serving MME, where the query response message includes information corresponding to the service of the UE.
  • the network element is the DRA; if the HSS is directly related to the serving MME and the The MME to which the UE is attached is connected, and the network element is the HSS.
  • the embodiment of the present invention provides a network element, where the network element is pre-configured with multiple paths corresponding to the destination MME, where the path of the path that does not pass through the DR to the destination MME is higher than that of the destination MME.
  • the priority of the path, the DR MME is pre-selected and the MME attached to the UE is located in the same MME pool area and pre-configured
  • the MME having the host name of the MME to which the UE is attached, in the scenario that the MME attached to the UE is faulty, after the network element determines the destination MME of the query request message, the UE that has the higher priority does not go through the DR to the UE. All the path forwarding of the MME fails.
  • the network element sends the query request message to the DR MME through the path of the lower priority MME that does not pass the UE to reach the DR MME.
  • the query request message is processed, so that the service of the UE is successful once, thereby solving the problem that the disaster recovery effect of the prior art service is poor.
  • the embodiment of the present invention further provides a service MME.
  • the service MME includes: a receiver, a processor, a bus, a memory, and a transmitter;
  • the receiver is configured to: after the fault of the mobility management entity MME to which the user equipment UE is connected, receive a query request message sent by the network element, where the query request message is used to request the MME attached to the UE to acquire the service of the UE Corresponding information, the query request message includes an identifier of the UE, and the MME attached to the UE and the serving MME are located in the same MME pool area;
  • the sender is configured to send a query response message to the network element, where the query response message includes information corresponding to the service of the UE.
  • the receiver is further configured to: receive the user information of the UE and the identifier of the UE that are sent by the MME that is attached to the UE, and record a correspondence between the user information of the UE and the identifier of the UE. ;
  • the processor is specifically configured to: obtain the user information of the UE saved by the serving MME according to the identifier of the UE.
  • the sender is further configured to: send a broadcast request message to all MMEs in the MME pool area, where the broadcast request message includes an identifier of the UE, and the broadcast message is used to request to acquire the UE.
  • User information ;
  • the receiver is further configured to: receive a broadcast response message of the backup MME of the MME to which the UE is attached, where the broadcast response message includes user information of the UE.
  • the processor is further configured to: determine, according to the identifier of the MME to which the UE is attached, that the serving MME is an MME that provides services for the UE after the MME attached to the UE fails.
  • the processor is configured to: determine, by using the identifier of the MME that is included in the pre-configured MME, that the MME that is attached to the UE is determined to be the UE when the MME attached to the UE is faulty.
  • the MME providing the service.
  • the network element is the DRA; if the HSS is directly related to the serving MME and the The MME to which the UE is attached is connected, and the network element is the HSS.
  • the query response message further includes an identifier of the MME to which the UE is attached.
  • the embodiment of the present invention provides a serving MME, which is a disaster-tolerant MME of an MME that is attached to a UE that is located in the same pool area as the serving MME, and the serving MME is pre-configured with identity information of the MME to which the UE is attached, such as a UE.
  • the host name information of the attached MME when there is a service corresponding to the UE, such as the VoLTE called service of the UE, the HSS needs to query the service of the UE by sending a query request message to the MME attached to the UE.
  • the information of the MME of the query request message is the identifier information of the MME to which the UE is attached.
  • the HSS or the DRA corresponds to the identifier information of the MME to which the UE is attached. All the paths of the MME that do not pass the DR to the MME attached to the UE cannot be successfully forwarded to the MME to which the UE is attached, and the HSS or DRA passes the lower priority.
  • the path of the MME that is attached to the UE to the disaster recovery MME sends the query request message to the DR MME, and the DR MME determines that the identifier of the destination MME is its pre-configured host name.
  • the MME requests the query to cancel The information is processed, so that the service of the UE can be successfully succeeded in the case that the MME attached to the UE is faulty, and the problem that the current service disaster tolerance effect is poor is solved.
  • the embodiment of the present invention further provides a network element, which is combined with FIG. 8 , the network element includes: a receiver, a processor, a bus, a memory, and a transmitter;
  • the processor acquires, by using the bus, an instruction in the memory, where the first path set and the second path set corresponding to the identifier of the destination mobility management entity MME are acquired, where the first path set and the The second path set includes at least one path, the path in the first path set is a path from the network element to the destination MME, and the path in the second path set is from the network element a path to the serving MME, where the serving MME is an MME that provides a service to the user equipment UE attached to the destination MME after the destination MME fails, and the path in the first path set does not pass the Serving the MME, the path in the second path set does not pass through the destination MME, and the serving MME and the destination MME are located in the same pool area;
  • the sender is configured to send, by using the path in the first path set, a query request message, where the query request message is used to request, by the MME attached to the UE, information about the service of the UE, where
  • the query request message includes an identifier of the MME to which the UE is attached and an identifier of the UE;
  • the sender After the sender fails to send the query request message through all the paths in the first path set, the sender sends the query request message by using a path in the second path set;
  • the receiver is configured to receive a query response message sent by the serving MME, where the query response message includes information corresponding to the service of the UE.
  • the network element is the DRA; if the HSS is directly related to the serving MME and the The MME to which the UE is attached is connected, and the network element is the HSS.
  • the embodiment of the present invention provides a network element, where the network element is pre-configured with multiple paths corresponding to the destination MME, and the path of the path that does not pass through the disaster recovery MME to the destination MME is optimized.
  • the priority is higher than the priority of the path of the MME that does not pass the destination MME to the disaster-tolerant MME.
  • the DR is the pre-selected MME that is in the same MME pool area as the MME attached to the UE and is pre-configured with the host name of the MME to which the UE is attached.
  • the network element determines the destination MME of the Query Request message, all the paths of the MME that are not attached to the MME are not forwarded through the MME.
  • the network element sends the query request message to the DR MME through the path of the lower priority MME that does not pass the UE to reach the DR MME, and the DR MME processes the query request message to make the UE service once. Success, thus solving the problem of poor performance of the prior art business disaster tolerance.
  • the embodiment of the present invention further provides a communication system, where the communication system includes at least the MME in the embodiment corresponding to FIG. 6 and the embodiment corresponding to FIG.
  • the network element in the network, or the communication system at least includes the serving MME and the network element in the embodiment corresponding to FIG.
  • the detailed technical features of the embodiments of the MME, the network element, and the communication system of the present invention can be referred to the embodiments of the method corresponding to FIG. 2, FIG. 4, and FIG. The embodiment of the communication system will not be described again.

Abstract

Des modes de réalisation de la présente invention résolvent le problème en l'état de la technique des mauvais effets de reprise sur sinistre de service. L'invention concerne un procédé de reprise sur sinistre de service, un dispositif associé et un système de communication. Le procédé comprend les étapes suivantes : lorsqu'une entité de gestion mobile (MME) liée à un équipement d'utilisateur (UE) fonctionne mal, une MME en service reçoit un message de demande d'interrogation transmis par un élément de réseau, le message de demande d'interrogation étant utilisé pour demander à la MME liée à l'UE d'acquérir des informations correspondant à un service de l'UE, le message de demande d'interrogation comprend une identité de la MME liée à l'UE et une identité de l'UE et la MME liée à l'UE et la MME en service sont situées dans une même zone de groupe de MME; la MME en service acquiert des informations d'utilisateur de l'UE sur la base de l'identité de l'UE; et la MME en service détermine les informations correspondant au service de l'UE sur la base des informations d'utilisateur de l'UE et transmet un message de réponse à l'interrogation à l'élément de réseau, le message de réponse à l'interrogation comprenant les informations correspondant au service de l'UE. Le procédé est applicable au domaine des technologies de communication.
PCT/CN2015/072049 2015-01-30 2015-01-30 Procédé de reprise sur sinistre de service, dispositif associé et système de communication WO2016119262A1 (fr)

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CN109996268B (zh) * 2017-12-29 2022-05-31 中国移动通信集团四川有限公司 通信链路连接方法、装置、设备及介质
CN108924814A (zh) * 2018-06-06 2018-11-30 武汉虹信通信技术有限责任公司 一种基于移动管理实体池的容灾方法
CN110798853B (zh) * 2018-08-02 2023-04-25 成都鼎桥通信技术有限公司 通信方法、装置及系统
CN111465041A (zh) * 2019-01-21 2020-07-28 普天信息技术有限公司 一种在容灾备份中确定主mme的方法及装置
CN116669063A (zh) * 2022-02-21 2023-08-29 华为技术有限公司 一种通信方法及装置

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