CN105338560A - Disaster recovery method, equipment and system for service gateway - Google Patents
Disaster recovery method, equipment and system for service gateway Download PDFInfo
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- CN105338560A CN105338560A CN201410385537.4A CN201410385537A CN105338560A CN 105338560 A CN105338560 A CN 105338560A CN 201410385537 A CN201410385537 A CN 201410385537A CN 105338560 A CN105338560 A CN 105338560A
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Abstract
The invention discloses a disaster recovery method, equipment and system for a service gateway, and relates to the technical field of communication. In the embodiment of the invention, a mobile management entity stores grouped data gateway information of a current service; a grouped data gateway stores mobile management entity information of the current service; when the service gateway of the current service is in fault, the mobile management entity transmits the previously stored disaster recovery data to the taken-over service gateway to recover a user calling business in real time; the grouped data gateway transmits the previously stored disaster recovery data to the taken-over service gateway to recover a called business in real time, so that the reliability of an LTE (Long Term Evolution) network and the quality of business service can be improved.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of gateway disaster recovery method, equipment and system.
Background technology
At Long Term Evolution (LongTermEvolution, LTE) in network, gateway (ServiceGateway, SGW) equipment is as evolved base station (EvolvedNodeBasestation, and packet data gateway (PacketGateway eNodeB), PGW) the user data bearer path between, completes route and the forward of packet.Mobility Management Entity (MobilityManagementEntity, MME) equipment has the aspect function such as selection of mobile management, session management, subscription authentication, Roaming control and PGW, SGW.Packet data network gateway equipment is the user data bearer path between gateway and application server (AF), is responsible for route and the forward of IP (Internet protocol or Internet protocol) address assignment, service billing and the packet of subscriber equipment (UE).ENodeB mainly completes wireless access function, comprises the aspects such as air interface resource management function, MME selection function and user face data dispatching management.
Disaster tolerance data phase mutually synchronization between active and standby SGW, additionally consume ample resources, sync validity is low, and reliability of disaster tolerance is poor, so do not adopt synchronous mutually between active and standby SGW, so the SGW of adapter for subsequent use can not preserve user's disaster tolerance information.Current SGW disaster tolerance realization flow as shown in Figure 1.For caller disaster-tolerant recovery, the request of Client-initiated calling service will be sent on the MME of current service, because MME detects the SGW fault of user's current service, user cannot find available bearer path, will send service denial to user, and indicating terminal initiates again to adhere to, this calling will be interrupted, user adheres to again, and re-establishes carrying, and then user can initiate caller recovery calling service again.For called disaster-tolerant recovery, PGW receives downlink business request, SGW fault detected, due to available bearer path cannot be found, called service request will be abandoned, thus interruption called service, now owing to cannot notify that user adheres to again, can only latent period tracing section updating (TrackingAreaUpdate, TAU), at present according to international norm requirement, the cycle T AU update cycle is approximately 1 hour, so wait for about 1 hour, the TAU periodically updated will find current service SGW fault and trigger again to adhere to, adhere to business successfully until user could recover, so called service will interrupt about one hour.
Current each province LTE network SGW equipment is concentrated and is disposed, and capacity is comparatively large, wide coverage, when primary SGW equipment fault, adapter SGW does not have disaster tolerance data cannot real-time recovery caller and called service, thus causes the large area professional chief time to be paralysed, particularly serious on the speech business impact based on LTE.
Summary of the invention
An embodiment of the present invention technical problem to be solved is: adapter SGW does not have disaster tolerance data cannot the problem of real-time recovery caller and called service.
According to an aspect of the embodiment of the present invention, a kind of gateway disaster recovery method provided, comprising: the information of Mobility Management Entity stores packets data gateway, and the information of this packet data gateway storing mobile management entity; The information of the packet data gateway of storage is sent to the gateway of adapter after the gateway fault of current service being detected by Mobility Management Entity; The information of the Mobility Management Entity of storage is sent to the gateway of adapter after the gateway fault of current service being detected by packet data gateway.
In one embodiment, Mobility Management Entity stores the information of the packet data gateway of current service, and packet data gateway stores the information of the Mobility Management Entity of current service, comprise: Mobility Management Entity is in response to Client-initiated attachment request, select gateway and packet data gateway, and store the information of the packet data gateway selected; Mobility Management Entity sends establishment session request to the gateway of current service, creates session request and carries the information of Mobility Management Entity and the information of packet data gateway; The establishment session request of the information forwarding of the packet data gateway that the gateway that described packet data gateway receives current service carries according to described establishment session request, and the information of storing mobile management entity.
In one embodiment, after described Mobility Management Entity detects the gateway fault of current service, the information of the packet data gateway of storage is sent to the gateway of adapter, comprise: described Mobility Management Entity response Client-initiated service request, detect that the gateway of current service breaks down, gateway to adapter sends and creates session request, the information of the packet data gateway of the current service prestored is carried in described establishment session request, so that amendment carrying request is sent to corresponding packet data gateway according to the information of the packet data gateway of current service by the gateway of adapter.
In one embodiment, Mobility Management Entity selects the gateway of adapter according to data configuration.
In one embodiment, after packet data gateway detects the gateway fault of current service, the information of the Mobility Management Entity of storage is sent to the gateway of adapter, comprise: after packet data gateway detects the gateway fault of current service, gateway to adapter sends descending trigger notice, descending trigger notice carries the information of the Mobility Management Entity of the current service prestored, so that descending trigger notice is sent to corresponding Mobility Management Entity according to the information of the Mobility Management Entity of current service by the gateway of adapter.
In one embodiment, after packet data gateway detects the gateway fault of current service, the information of the Mobility Management Entity of storage is sent to the gateway of adapter, also comprise: the page response that Mobility Management Entity response user returns, gateway to adapter sends and creates session request, create the information that the packet data gateway of current service is carried in session request, so that amendment carrying request is sent to corresponding packet data gateway according to the information of the packet data gateway of current service by the gateway of adapter, thus the carrying recovered between the gateway of adapter and packet data gateway, to complete the disaster tolerance of called service.
In one embodiment, Mobility Management Entity also carries disaster tolerance mark to the establishment session request of the gateway transmission of adapter.
In one embodiment, the information of Mobility Management Entity comprises: at least one information in the mark of Mobility Management Entity and Internet protocol address; The information of packet data gateway comprises at least one information in the mark of packet data gateway and Internet protocol address.
According to an aspect of the embodiment of the present invention, a kind of Mobility Management Entity provided, comprising: memory module, for storing the information of the packet data gateway of current service; Sending module, for current service detected gateway fault after, the information of the packet data gateway of storage is sent to the gateway of adapter.
In one embodiment of the present of invention, the memory module of Mobility Management Entity comprises: selected cell, in response to Client-initiated attachment request, selects gateway and packet data gateway; Memory cell, for storing the information of the packet data gateway of selection.
In one embodiment, sending module comprises: detecting unit, for responding Client-initiated service request, detects that the gateway of current service breaks down; Transmitting element, session request is created for sending to the gateway of adapter, create the information that the packet data gateway of the current service prestored is carried in session request, so that amendment carrying request is sent to corresponding packet data gateway according to the information of the packet data gateway of current service by the gateway of adapter.
In one embodiment, sending module also comprises: selected cell, for selecting the gateway of adapter according to data configuration.
In one embodiment, disaster tolerance mark is also carried in the establishment session request that the sending module of Mobility Management Entity sends.
According to an aspect of the embodiment of the present invention, a kind of packet data gateway provided, comprising: memory module, for storing the information of the Mobility Management Entity of current service; And sending module, for current service detected gateway fault after, the information of the Mobility Management Entity of storage is sent to the gateway of adapter.
In one embodiment, the memory module of packet data gateway comprises: receiving element, for the establishment session request from Mobility Management Entity that the gateway receiving current service forwards, create session request and carry the information of Mobility Management Entity and the information of packet data gateway; And memory cell, for the information of storing mobile management entity.
In one embodiment, the sending module of packet data gateway comprises detecting unit, for the gateway fault of current service being detected; Transmitting element, for sending descending trigger notice to the gateway of adapter, descending trigger notice carries the information of the Mobility Management Entity of the current service prestored, so that descending trigger notice is sent to corresponding Mobility Management Entity according to the information of the Mobility Management Entity of current service by the gateway of adapter.
According to an aspect of the embodiment of the present invention, a kind of gateway disaster tolerance system provided, comprising: aforesaid Mobility Management Entity and aforesaid packet data gateway.
The embodiment of the present invention stores the packet data gateway information of current service by Mobility Management Entity, packet data gateway stores the Mobility Management Entity information of current service, during the gateway fault of current service, the disaster tolerance data stored before are sent to the gateway of adapter and real-time recovery user calling service by Mobility Management Entity, the disaster tolerance data stored before are sent to the gateway of adapter and real-time recovery called service by packet data gateway, thus improve LTE network reliability and QoS.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present invention, further feature of the present invention and advantage thereof will become clear.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the gateway disaster recovery method schematic flow sheet of prior art.
Fig. 2 is the schematic flow sheet of a gateway disaster recovery method of the present invention embodiment.
Fig. 3 is the schematic flow sheet that the present invention backs up a disaster tolerance data embodiment
Fig. 4 is calling service disaster tolerance schematic flow sheet in gateway disaster recovery method of the present invention.
Fig. 5 is called service disaster tolerance schematic flow sheet in gateway disaster recovery method of the present invention.
Fig. 6 is the structural representation of a gateway disaster tolerance system of the present invention embodiment.
Fig. 7 is the structural representation of a Mobility Management Entity of the present invention embodiment.
Fig. 8 is the structural representation of another embodiment of Mobility Management Entity of the present invention.
Fig. 9 is the structural representation of another embodiment of Mobility Management Entity of the present invention.
Figure 10 is the structural representation of a packet data gateway of the present invention embodiment.
Figure 11 is the structural representation of another embodiment of packet data gateway of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Fig. 2 is the schematic flow sheet of a gateway disaster recovery method of the present invention embodiment.As shown in Figure 2, the method for the present embodiment comprises the following steps:
Step S202, Mobility Management Entity and packet data gateway backup disaster tolerance data, that is, Mobility Management Entity stores the information of the packet data gateway of current service, and packet data gateway stores the information of the Mobility Management Entity of current service.
Step S204, the information of the packet data gateway of storage is sent to the gateway of adapter after the gateway fault of current service being detected by Mobility Management Entity.
Step S206, the information of the Mobility Management Entity of storage is sent to the gateway of adapter after the gateway fault of current service being detected by packet data gateway.
Above-described embodiment stores the packet data gateway information of current service by Mobility Management Entity, packet data gateway stores the Mobility Management Entity information of current service, during the gateway fault of current service, the disaster tolerance data stored before are sent to the gateway of adapter and real-time recovery user calling service by Mobility Management Entity, the disaster tolerance data stored before are sent to the gateway of adapter and real-time recovery called service by packet data gateway, thus improve LTE network reliability and QoS.
In order to realize real-time disaster-tolerant recovery, need increase disaster tolerance data backup flow process, but not directly synchronous between primary gateway and adapter gateway, but when user adheres to, Mobility Management Entity stores the packet data gateway information of current service, and packet data gateway stores the Mobility Management Entity information of current service.With reference to figure 3, the Mobility Management Entity in step S202 and packet data gateway backup disaster tolerance data can adopt following methods to realize:
Step S302, user sends attachment request to Mobility Management Entity.
Step S304, Mobility Management Entity, in response to Client-initiated attachment request, is selected gateway and packet data gateway according to data configuration, and is stored the information of the packet data gateway selected.
Wherein, the information of packet data gateway such as comprises the information such as mark ID and Internet protocol address IP of packet data gateway.
Step S306, Mobility Management Entity sends establishment session request (CreateSessionRequest) to the gateway of current service, creates session request and carries the information of Mobility Management Entity and the information of packet data gateway.
Wherein, the information of Mobility Management Entity such as comprises the information such as mark ID and Internet protocol address IP of Mobility Management Entity.
Step S308, the gateway of current service forwards to packet data gateway and creates session request.
Step S310, the establishment session request that the gateway that packet data gateway receives current service forwards, from creating the information extracting Mobility Management Entity session request, and the information of storing mobile management entity.
Step S312, packet data gateway returns establishment conversational response to gateway.
Step S314, the gateway of current service returns to Mobility Management Entity and creates conversational response information.
Step S316, Mobility Management Entity returns attachment to user and accepts message.
Above-described embodiment, the packet data gateway information of current service is stored by Mobility Management Entity, packet data gateway stores the Mobility Management Entity information of current service, realize the storage of disaster tolerance data, directly synchronous relative to disaster tolerance data between primary SGW and adapter SGW, consumption of natural resource is few, and sync validity is high, and reliability of disaster tolerance is good.
After backup disaster tolerance data, the gateway of adapter can utilize the disaster tolerance data of backup to carry out caller and called disaster-tolerant recovery, and caller and called disaster-tolerant recovery business procedure are described below respectively.
For caller disaster-tolerant recovery of the present invention, when the gateway fault of user's service, Mobility Management Entity is when re-establishing carrying to adapter gateway, packet data gateway information is delivered to the gateway of adapter, the gateway of adapter is made to obtain the information of the packet data gateway of user's current service, re-establish the carrying of the packet data gateway of adapter gateway and current service, signaling plane between adapter gateway and the packet data gateway of current service is connected and the normal recovery of user face connection, ensure that user's calling service normally effectively processes, such Mobility Management Entity can not interrupt current caller just can real-time recovery calling service.
Fig. 4 is calling service disaster tolerance schematic flow sheet in gateway disaster recovery method of the present invention.With reference to figure 4, the calling service recovery process of the present embodiment is as follows:
Step S402, user sends service request to Mobility Management Entity.
Step S404, Mobility Management Entity response Client-initiated service request, detects that the gateway of current service breaks down, and selects the gateway of adapter according to data configuration.
Step S406, Mobility Management Entity sends establishment session request to the gateway of adapter, creates the information that the packet data gateway of the current service prestored is carried in session request.
Wherein, above-mentioned establishment session request can also carry disaster tolerance mark, disaster tolerance mark represents that this business is the business of disaster-tolerant recovery, but not new business, the gateway of adapter does not need to send establishment session request to packet data gateway according to disaster tolerance mark and re-establishes carrying, and only needs to revise original bearing parameter thus recovering bearing to packet data gateway transmission amendment carrying request.
Step S408, the gateway of adapter, to the packet data gateway transmission amendment carrying request of correspondence, revises the information that the packet data gateway of current service is carried in the request of carrying.
Step S410, the packet data gateway of current service is to the amendment of original carrying data, the aspect data of the SGW mark of such as taking over, IP, tunnel endpoint identifier (TunnelEndpointID, TEID), and send amendment carrying response to the gateway of adapter.
Step S412, the gateway of adapter returns establishment conversational response to the Mobility Management Entity of current service.
Step S414, the Mobility Management Entity of current service returns business to user and accepts message.
Above-described embodiment, when Mobility Management Entity detects the gateway fault of current service, the disaster tolerance data stored before are sent to the gateway of adapter, service message is sent to corresponding packet data gateway according to the information of the packet data gateway in disaster tolerance data by the gateway of adapter, thus real-time recovery user calling service, improve LTE network reliability and QoS.
For called disaster-tolerant recovery of the present invention, when the gateway fault of user's service, the packet data gateway of current service receives downlink business request, the packet data gateway of current service has stored the information of the Mobility Management Entity of user's current service, packet data gateway sends the descending trigger notice of carrying the Mobility Management Entity information prestored to the gateway of adapter, descending trigger notice is delivered to the Mobility Management Entity of current service by the gateway of adapter according to entrained Mobility Management Entity information, business can not cannot be recovered because of the Mobility Management Entity that can not find current service, Mobility Management Entity according to original information by re-establishing carrying to the paging of user and triggering, guarantee user's called service normal process, without the need to waiting for a TAU update cycle, just can real-time recovery user called service.
Fig. 5 is gateway disaster recovery method called service disaster tolerance schematic flow sheet of the present invention.With reference to figure 5, the called service disaster-tolerant recovery process of the present embodiment is as follows:
Step S502, packet data gateway receives downlink data.
Step S504, packet data gateway detects the gateway fault of current service, and the gateway to adapter sends descending trigger notice, and descending trigger notice carries the information of the Mobility Management Entity of the current service prestored.
Wherein, descending trigger notification message such as can be realized by DownlinkTriggeringNotification message.
Step S506, descending trigger notice is sent to corresponding Mobility Management Entity by the information of the Mobility Management Entity of the current service that the gateway of adapter carries according to descending trigger notice.
Step S508, the Mobility Management Entity of current service returns the response of descending trigger notice to the gateway taken over.
Wherein, descending trigger notice response message such as can be realized by DownlinkTriggeringResponse message.
Step S510, the gateway of adapter responds to packet data gateway converting downlink trigger notice.
Step S512, the Mobility Management Entity of current service sends paging request to user.
Step S514, user returns page response to the Mobility Management Entity of current service.
Step S516, the Mobility Management Entity of current service, to the gateway transmission establishment session request of adapter, creates the information that the packet data gateway of current service is carried in session request.
Wherein, create session request and can also carry disaster tolerance mark, the function of disaster tolerance mark and purposes, with reference to aforementioned, repeat no more here.
Step S518, the gateway of adapter is asked to the packet data gateway transmission amendment carrying of current service.
Step S520, the packet data gateway of current service returns amendment carrying response to the gateway taken over.
Step S522, the gateway of adapter returns to the Mobility Management Entity of current service and creates conversational response message.
Step S524, downlink data is sent to user by the packet data gateway of current service.
Above-described embodiment stores the Mobility Management Entity information of current service by packet data gateway, during the gateway fault of current service, Mobility Management Entity information in the disaster tolerance data stored before is sent to the gateway of adapter and real-time recovery called service by packet data gateway, thus improves LTE network reliability and QoS.
Fig. 6 is the structural representation of a gateway disaster tolerance system of the present invention embodiment.As shown in Figure 6, the system 600 of the present embodiment comprises Mobility Management Entity 602 and packet data gateway 604.
Mobility Management Entity 602, for storing the information of the packet data gateway 604 of current service, after the gateway fault of current service being detected, is sent to the gateway of adapter by the information of the packet data gateway 604 of storage.
Packet data gateway 604, for storing the information of the Mobility Management Entity 602 of current service, after the gateway fault of current service being detected, is sent to the gateway of adapter by the information of the Mobility Management Entity 602 of storage.
Above-described embodiment stores the information of the packet data gateway of current service by Mobility Management Entity, packet data gateway stores the information of the Mobility Management Entity of current service, during the gateway fault of current service, the disaster tolerance data stored before are sent to the gateway of adapter and real-time recovery user calling service by Mobility Management Entity, the disaster tolerance data stored before are sent to the gateway of adapter and real-time recovery called service by packet data gateway, thus improve LTE network reliability and QoS.
Fig. 7 is the structural representation of an embodiment of Mobility Management Entity 602 of the present invention.As shown in Figure 7, the Mobility Management Entity 602 of the present embodiment comprises:
Memory module 702, for storing the information of the packet data gateway 604 of current service.
Sending module 704, for current service detected gateway fault after, the information of the packet data gateway 604 of storage is sent to the gateway of adapter.
Above-described embodiment stores the information of the packet data gateway of current service by the memory module of Mobility Management Entity, during the gateway fault of current service, the information of the packet data gateway of the current service stored before is sent to the gateway of adapter and real-time recovery user calling service by the sending module of Mobility Management Entity.
Fig. 8 is the structural representation of another embodiment of Mobility Management Entity 602 of the present invention.As shown in Figure 8, the memory module 702 of the present embodiment comprises:
Selected cell 8022, in response to Client-initiated attachment request, selects gateway and packet data gateway.
Memory cell 8024, for storing the information of the packet data gateway 604 of selection.
Fig. 9 is the structural representation of another embodiment of Mobility Management Entity 602 of the present invention.As shown in Figure 9, the sending module 704 of the present embodiment comprises:
Detecting unit 9042, for responding Client-initiated service request, detects that the gateway of current service breaks down;
Transmitting element 9044, session request is created for sending to the gateway of adapter, the information of the packet data gateway of the current service prestored is carried in described establishment session request, so that amendment carrying request is sent to corresponding packet data gateway according to the information of the packet data gateway of current service by the gateway of adapter.
Sending module further comprises: selected cell 9046, for selecting the gateway of adapter according to data configuration.
Figure 10 is the structural representation of an embodiment of packet data gateway 604 of the present invention.As shown in Figure 10, the packet data gateway 604 of the present embodiment comprises:
Memory module 1002, for storing the information of the Mobility Management Entity 602 of current service.
Sending module 1004, for current service detected gateway fault after, the information of the Mobility Management Entity 602 of storage is sent to the gateway of adapter.
Above-described embodiment stores the information of the Mobility Management Entity of current service by the memory module of packet data gateway, during the gateway fault of current service, the information of the Mobility Management Entity of the current service stored before is sent to the gateway of adapter and real-time recovery user calling service by the sending module of packet data gateway.
Figure 11 is the structural representation of another embodiment of packet data gateway 604 of the present invention.As shown in figure 11, the memory module 1002 of the packet data gateway 604 of the present embodiment comprises:
Receiving element 1102, the establishment session request from Mobility Management Entity 602 that the gateway for receiving current service forwards, creates session request and carries the information of Mobility Management Entity 602 and the information of packet data gateway 604.
Memory cell 1104, for the information of storing mobile management entity 602.
As shown in figure 11, the sending module 1004 of the packet data gateway 604 of the present embodiment, comprising:
Detecting unit 1106, for detecting the gateway fault of current service;
Transmitting element 1108, for sending descending trigger notice to the gateway of adapter, described descending trigger notice carries the information of the Mobility Management Entity of the current service prestored, so that descending trigger notice is sent to corresponding Mobility Management Entity according to the information of the Mobility Management Entity of current service by the gateway of adapter.
In one embodiment, transmitting element 1108, also for responding the page response that user returns, gateway to adapter sends and creates session request, the information of the packet data gateway of current service is carried in described establishment session request, so that amendment carrying request is sent to corresponding packet data gateway according to the information of the packet data gateway of current service by the gateway of adapter.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. a gateway disaster recovery method, is characterized in that, comprising:
Mobility Management Entity stores the information of the packet data gateway of current service, and described packet data gateway stores the information of the described Mobility Management Entity of current service;
The information of the packet data gateway of storage is sent to the gateway of adapter after the gateway fault of current service being detected by described Mobility Management Entity;
The information of the Mobility Management Entity of storage is sent to the gateway of adapter after the gateway fault of current service being detected by described packet data gateway.
2. gateway disaster recovery method according to claim 1, it is characterized in that, described Mobility Management Entity stores the information of the packet data gateway of current service, and described packet data gateway stores the information of the described Mobility Management Entity of current service, comprising:
Described Mobility Management Entity, in response to Client-initiated attachment request, is selected gateway and packet data gateway, and is stored the information of the packet data gateway selected;
Described Mobility Management Entity sends establishment session request to the gateway of current service, and the information of Mobility Management Entity and the information of packet data gateway are carried in described establishment session request;
The establishment session request of the information forwarding of the packet data gateway that the gateway that described packet data gateway receives current service carries according to described establishment session request, and the information of storing mobile management entity.
3. gateway disaster recovery method according to claim 1, is characterized in that, the information of the packet data gateway of storage is sent to the gateway of adapter, comprises after the gateway fault of current service being detected by described Mobility Management Entity:
Described Mobility Management Entity response Client-initiated service request, detect that the gateway of current service breaks down, gateway to adapter sends and creates session request, the information of the packet data gateway of the current service prestored is carried in described establishment session request, so that amendment carrying request is sent to corresponding packet data gateway according to the information of the packet data gateway of current service by the gateway of adapter.
4. gateway disaster recovery method according to claim 3, is characterized in that, described Mobility Management Entity selects the gateway of adapter according to data configuration.
5. gateway disaster recovery method according to claim 1, is characterized in that, the information of the Mobility Management Entity of storage is sent to the gateway of adapter, comprises after the gateway fault of current service being detected by described packet data gateway:
After described packet data gateway detects the gateway fault of current service, gateway to adapter sends descending trigger notice, described descending trigger notice carries the information of the Mobility Management Entity of the current service prestored, so that descending trigger notice is sent to corresponding Mobility Management Entity according to the information of the Mobility Management Entity of current service by the gateway of adapter.
6. gateway disaster recovery method according to claim 5, is characterized in that, the information of the Mobility Management Entity of storage is sent to the gateway of adapter, also comprises after the gateway fault of current service being detected by described packet data gateway:
The page response that described Mobility Management Entity response user returns, gateway to adapter sends and creates session request, the information of the packet data gateway of current service is carried in described establishment session request, so that amendment carrying request is sent to corresponding packet data gateway according to the information of the packet data gateway of current service by the gateway of adapter.
7. the gateway disaster recovery method according to claim 3 or 6, is characterized in that, disaster tolerance mark is also carried in the establishment session request that described Mobility Management Entity sends.
8. gateway disaster recovery method according to claim 1, is characterized in that, the information of described Mobility Management Entity comprises at least one information in the mark of Mobility Management Entity and Internet protocol address;
The information of described packet data gateway comprises at least one information in the mark of packet data gateway and Internet protocol address.
9. a Mobility Management Entity, is characterized in that, comprising:
Memory module, for storing the information of the packet data gateway of current service;
Sending module, for current service detected gateway fault after, the information of the packet data gateway of storage is sent to the gateway of adapter.
10. Mobility Management Entity according to claim 9, is characterized in that, described memory module comprises:
Selected cell, in response to Client-initiated attachment request, selects gateway and packet data gateway;
Memory cell, for storing the information of the packet data gateway of selection.
11. Mobility Management Entity according to claim 9, is characterized in that, described sending module comprises:
Detecting unit, for responding Client-initiated service request, detects that the gateway of current service breaks down;
Transmitting element, session request is created for sending to the gateway of adapter, the information of the packet data gateway of the current service prestored is carried in described establishment session request, so that amendment carrying request is sent to corresponding packet data gateway according to the information of the packet data gateway of current service by the gateway of adapter.
12. Mobility Management Entity according to claim 11, is characterized in that, described sending module also comprises:
Selected cell, for selecting the gateway of adapter according to data configuration.
13. Mobility Management Entity according to claim 11, is characterized in that, disaster tolerance mark is also carried in the establishment session request that described sending module sends.
14. 1 kinds of packet data gateway, is characterized in that, comprising:
Memory module, for storing the information of the described Mobility Management Entity of current service;
Sending module, for current service detected gateway fault after, the information of the Mobility Management Entity of storage is sent to the gateway of adapter.
15. packet data gateway according to claim 14, is characterized in that, described memory module comprises:
Receiving element, the establishment session request from Mobility Management Entity that the gateway for receiving current service forwards, the information of Mobility Management Entity and the information of packet data gateway are carried in described establishment session request;
Memory cell, for the information of storing mobile management entity.
16. packet data gateway according to claim 14, is characterized in that, described sending module, comprising:
Detecting unit, for detecting the gateway fault of current service;
Transmitting element, for sending descending trigger notice to the gateway of adapter, described descending trigger notice carries the information of the Mobility Management Entity of the current service prestored, so that descending trigger notice is sent to corresponding Mobility Management Entity according to the information of the Mobility Management Entity of current service by the gateway of adapter.
17. packet data gateway according to claim 16, it is characterized in that, described transmitting element, also for responding the page response that user returns, gateway to adapter sends and creates session request, the information of the packet data gateway of current service is carried in described establishment session request, so that amendment carrying request is sent to corresponding packet data gateway according to the information of the packet data gateway of current service by the gateway of adapter.
18. 1 kinds of gateway disaster tolerance systems, is characterized in that, comprising: the arbitrary described Mobility Management Entity of claim 9-13 and the arbitrary described packet data gateway of claim 14-17.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410385537.4A CN105338560B (en) | 2014-08-07 | 2014-08-07 | Gateway disaster recovery method, equipment and system |
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