CN105338560B - Gateway disaster recovery method, equipment and system - Google Patents
Gateway disaster recovery method, equipment and system Download PDFInfo
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- CN105338560B CN105338560B CN201410385537.4A CN201410385537A CN105338560B CN 105338560 B CN105338560 B CN 105338560B CN 201410385537 A CN201410385537 A CN 201410385537A CN 105338560 B CN105338560 B CN 105338560B
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Abstract
The invention discloses a kind of gateway disaster recovery method, equipment and systems, are related to field of communication technology.The embodiment of the present invention stores the packet data gateway information of current service by mobility management entity, the mobility management entity information of packet data gateway storage current service, when the gateway failure of current service, mobility management entity real-time recovery user's calling service by the gateway of the disaster tolerance data transmission stored before to adapter tube, packet data gateway real-time recovery called service by the gateway of the disaster tolerance data transmission stored before to adapter tube, to improve LTE network reliability and business service quality.
Description
Technical field
The present invention relates to field of communication technology, especially a kind of gateway disaster recovery method, equipment and system.
Background technique
In long term evolution (Long Term Evolution, LTE) network, gateway (Service Gateway,
SGW) equipment is as evolved base station (Evolved Node Base station, eNodeB) and packet data gateway
User data bearer path between (Packet Gateway, PGW), completes the routing and forward of data packet.Mobile management
Entity (Mobility Management Entity, MME) equipment has mobile management, session management, subscription authentication, roaming
Control and the selection of PGW, SGW etc. function.Packet data network gateway equipment be gateway and application server (AF) it
Between user data bearer path, be responsible for user equipment (UE) (the Internet protocol or Internet protocol) address IP distribution, business
Charging and the routing of data packet and forward.ENodeB mainly completes wireless access function, including air interface resource management function,
MME selection function and user face data management and running etc..
Disaster tolerance data are mutually in step between active and standby SGW, additionally consume vast resources, and sync validity is low, reliability of disaster tolerance
Difference is mutually synchronized so not using between active and standby SGW, so the SGW of spare adapter tube will not save user's disaster tolerance information.At present
SGW disaster tolerance implementation process is as shown in Figure 1.For caller disaster-tolerant recovery, the request of Client-initiated calling service, which will be sent to, works as
On the MME of preceding service, since MME detects the SGW failure of user's current service, user will be unable to find available bearer path,
Service denial will be sent to user, instruction terminal initiation is adhered to again, it will this calling is interrupted, user adheres to again, and
Carrying is re-established, then user can initiate caller recovery calling service again.For being called disaster-tolerant recovery, PGW is received
Downlink business request, detects SGW failure, due to that can not find available bearer path, it will called service request is abandoned, thus
Interrupting called service can only latent period tracing section updating at this time since user can not be notified to be adhered to again
(Tracking Area Update, TAU), requires according to international norm at present, and the cycle T AU update cycle is about 1 hour,
About 1 hour is so waited, the TAU periodically updated will be apparent that current service SGW failure and trigger and adhere to again, for use
Business could be restored after family is adhered to successfully, so called service will interrupt about hour.
Each province's LTE network SGW equipment concentrates deployment at present, and capacity is larger, wide coverage, when primary SGW equipment fault
When, adapter tube SGW do not have disaster tolerance data can not real-time recovery caller and called service, so as to cause large area business paralysis for a long time
Paralysis is particularly acute the voice service influence based on LTE.
Summary of the invention
One technical problem to be solved by the embodiment of the invention is that: adapter tube SGW does not have disaster tolerance data can not real-time recovery
The problem of caller and called service.
According to an aspect of an embodiment of the present invention, a kind of gateway disaster recovery method provided, comprising: mobile management
Entity stores the information of packet data gateway, and the information of packet data gateway storage mobility management entity；Mobility
After management entity detects the gateway failure of current service, the information of the packet data gateway of storage is transmitted to adapter tube
Gateway；After packet data gateway detects the gateway failure of current service, by the mobility management entity of storage
Information is transmitted to the gateway of adapter tube.
In one embodiment, the information of the packet data gateway of mobility management entity storage current service, and point
The information of the mobility management entity of group data gateway storage current service, comprising: mobility management entity is sent out in response to user
The attach request risen selects gateway and packet data gateway, and stores the information of the packet data gateway of selection；Mobility
Management entity sends creation session request to the gateway of current service, and creation session request carries mobility management entity
The information of information and packet data gateway；The packet data gateway receives the gateway of current service according to the creation meeting
The creation session request of the information forwarding for the packet data gateway that words request carries, and store the information of mobility management entity.
In one embodiment, it after the mobility management entity detects the gateway failure of current service, will deposit
The information of the packet data gateway of storage is transmitted to the gateway of adapter tube, comprising: mobility management entity response user's hair
The service request risen, detects that the gateway of current service breaks down, and sends creation session to the gateway of adapter tube and asks
It asks, the creation session request carries the information of the packet data gateway of pre-stored current service, so as to the service of adapter tube
Modification carrying request is sent to corresponding packet data gateway according to the information of the packet data gateway of current service by gateway.
In one embodiment, the gateway that mobility management entity is taken over according to data configuration selection.
In one embodiment, after packet data gateway detects the gateway failure of current service, by the shifting of storage
The information of mobility management entity is transmitted to the gateway of adapter tube, comprising: packet data gateway detects the service of current service
After gateway fails, downlink trigger notice is sent to the gateway of adapter tube, downlink trigger notice carries pre-stored current clothes
The information of the mobility management entity of business, so as to adapter tube gateway according to the information of the mobility management entity of current service
Downlink trigger notice is sent to corresponding mobility management entity.
In one embodiment, after packet data gateway detects the gateway failure of current service, by the shifting of storage
The information of mobility management entity is transmitted to the gateway of adapter tube, further includes: what mobility management entity response user returned seeks
Response is exhaled, sends creation session request to the gateway of adapter tube, creation session request carries the Packet Data Network of current service
The information of pass is sent so that modification is carried request according to the information of the packet data gateway of current service by the gateway of adapter tube
To corresponding packet data gateway, to restore the carrying between the gateway and packet data gateway of adapter tube, to complete
The disaster tolerance of called service.
In one embodiment, mobility management entity is also carried to the creation session request that the gateway of adapter tube is sent
Disaster tolerance mark.
In one embodiment, the information of mobility management entity includes: the mark and internet of mobility management entity
At least one information in protocol address；The information of packet data gateway includes the mark and Internet protocol of packet data gateway
At least one information in address.
According to an aspect of an embodiment of the present invention, a kind of mobility management entity provided, comprising: memory module is used
In the information of the packet data gateway of storage current service；Sending module, for detecting the gateway failure of current service
Afterwards, the information of the packet data gateway of storage is transmitted to the gateway of adapter tube.
In one embodiment of the present of invention, the memory module of mobility management entity includes: selecting unit, in response to
Client-initiated attach request selects gateway and packet data gateway；Storage unit, for storing the packet data of selection
The information of gateway.
In one embodiment, sending module includes: detection unit, for responding Client-initiated service request, is detected
Gateway to current service breaks down；Transmission unit, for sending creation session request, wound to the gateway of adapter tube
The information that session request carries the packet data gateway of pre-stored current service is built, so that the gateway of adapter tube is according to working as
Modification carrying request is sent to corresponding packet data gateway by the information of the packet data gateway of preceding service.
In one embodiment, sending module further include: selecting unit, for the service according to data configuration selection adapter tube
Gateway.
In one embodiment, the creation session request that the sending module of mobility management entity is sent also carries disaster tolerance mark
Will.
According to an aspect of an embodiment of the present invention, a kind of packet data gateway provided, comprising: memory module is used for
Store the information of the mobility management entity of current service；And sending module, for detecting the gateway of current service
After failure, the information of the mobility management entity of storage is transmitted to the gateway of adapter tube.
In one embodiment, the memory module of packet data gateway includes: receiving unit, for receiving current service
The creation session request from mobility management entity of gateway forwarding, creation session request carry mobility management entity
Information and packet data gateway information；And storage unit, for storing the information of mobility management entity.
In one embodiment, the sending module of packet data gateway includes detection unit, for detecting current service
Gateway failure；Transmission unit, for sending downlink trigger notice to the gateway of adapter tube, downlink trigger notice is carried
The information of the mobility management entity of pre-stored current service, so as to adapter tube gateway according to the movement of current service
Downlink trigger notice is sent to corresponding mobility management entity by the information of property management entity.
According to an aspect of an embodiment of the present invention, a kind of gateway disaster tolerance system provided, comprising: movement above-mentioned
Property management entity and packet data gateway above-mentioned.
The embodiment of the present invention stores the packet data gateway information of current service, packet data by mobility management entity
Gateway stores the mobility management entity information of current service, when the gateway failure of current service, mobility management entity
By the gateway of the disaster tolerance data transmission stored before to adapter tube, real-time recovery user's calling service, packet data gateway will
The disaster tolerance data transmission stored before to adapter tube gateway and real-time recovery called service, so that it is reliable to improve LTE network
Property and business service quality.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the gateway disaster recovery method flow diagram of the prior art.
Fig. 2 is the flow diagram of gateway disaster recovery method one embodiment of the present invention.
Fig. 3 is the flow diagram of backup disaster tolerance data one embodiment of the invention
Fig. 4 is calling service disaster tolerance flow diagram in gateway disaster recovery method of the invention.
Fig. 5 is called service disaster tolerance flow diagram in gateway disaster recovery method of the invention.
Fig. 6 is the structural schematic diagram of gateway disaster tolerance system one embodiment of the present invention.
Fig. 7 is the structural schematic diagram of mobility management entity one embodiment of the present invention.
Fig. 8 is the structural schematic diagram of mobility management entity further embodiment of the present invention.
Fig. 9 is the structural schematic diagram of another embodiment of mobility management entity of the present invention.
Figure 10 is the structural schematic diagram of packet data gateway one embodiment of the present invention.
Figure 11 is the structural schematic diagram of packet data gateway further embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for ease of description, the size of various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 2 is the flow diagram of gateway disaster recovery method one embodiment of the present invention.As shown in Fig. 2, the present embodiment
Method the following steps are included:
Step S202, mobility management entity and packet data gateway backup disaster tolerance data, that is, mobility management entity is deposited
The information of the packet data gateway of current service is stored up, and packet data gateway stores the mobility management entity of current service
Information.
Step S204, after mobility management entity detects the gateway failure of current service, by the packet count of storage
The gateway of adapter tube is transmitted to according to the information of gateway.
Step S206, after packet data gateway detects the gateway failure of current service, by the mobility pipe of storage
The information of reason entity is transmitted to the gateway of adapter tube.
Above-described embodiment stores the packet data gateway information of current service, Packet Data Network by mobility management entity
The mobility management entity information for closing storage current service, when the gateway failure of current service, mobility management entity will
The disaster tolerance data transmission stored before to adapter tube gateway and real-time recovery user's calling service, packet data gateway by it
The disaster tolerance data transmission of preceding storage to adapter tube gateway and real-time recovery called service, to improve LTE network reliability
And business service quality.
In order to realize real-time disaster-tolerant recovery, need to increase a disaster tolerance data backup process, but be not primary gateway
Direct synchronization between adapter tube gateway, but in user's attachment, mobility management entity stores point of current service
Group data gateway information, and the mobility management entity information of packet data gateway storage current service.With reference to Fig. 3, step
Mobility management entity and packet data gateway backup disaster tolerance data in S202 can be realized using following methods:
Step S302, user send attach request to mobility management entity.
Step S304, mobility management entity select to service in response to Client-initiated attach request, according to data configuration
Gateway and packet data gateway, and store the information of the packet data gateway of selection.
Wherein, mark ID and Internet protocol address IP of the information of packet data gateway for example including packet data gateway
Etc. information.
Step S306, mobility management entity send creation session request (Create to the gateway of current service
Session Request), creation session request carries the information of mobility management entity and the information of packet data gateway.
Wherein, the information of mobility management entity is for example including the mark ID of mobility management entity and Internet protocol
The information such as location IP.
The gateway of step S308, current service forward creation session request to packet data gateway.
Step S310, packet data gateway receives the creation session request of the gateway forwarding of current service, from wound
It builds in session request and extracts the information of mobility management entity, and store the information of mobility management entity.
Step S312, packet data gateway return to creation conversational response to gateway.
The gateway of step S314, current service return to creation conversational response information to mobility management entity.
Step S316, mobility management entity return to attachment received message to user.
Above-described embodiment stores the packet data gateway information of current service, packet data by mobility management entity
Gateway stores the mobility management entity information of current service, the storage of disaster tolerance data is realized, relative to primary SGW and adapter tube
The direct synchronization of disaster tolerance data between SGW, consumption resource is few, and sync validity is high, and reliability of disaster tolerance is good.
After backup disaster tolerance data, the disaster tolerance data that the gateway of adapter tube can use backup carry out caller and called
Disaster-tolerant recovery illustrates caller and called disaster-tolerant recovery business procedure separately below.
For caller disaster-tolerant recovery of the invention, when the gateway failure of user service, mobility management entity exists
When re-establishing carrying to adapter tube gateway, packet data gateway information is sent to the clothes for making adapter tube to the gateway of adapter tube
The information of the packet data gateway for gateway acquisition user's current service of being engaged in, re-establishes point of adapter tube gateway and current service
The carrying of group data gateway, so that signaling plane connection and use between adapter tube gateway and the packet data gateway of current service
The connection of family face is normal to restore, it is ensured that user's calling service is normally effectively treated, and such mobility management entity, which will not interrupt, works as
Preceding caller can real-time recovery calling service.
Fig. 4 is calling service disaster tolerance flow diagram in gateway disaster recovery method of the invention.With reference to Fig. 4, this implementation
The calling service recovery process of example is as follows:
Step S402, user send service request to mobility management entity.
Step S404, mobility management entity respond Client-initiated service request, detect the service network of current service
Pass is broken down, and according to the gateway of data configuration selection adapter tube.
Step S406, mobility management entity send creation session request to the gateway of adapter tube, create session request
Carry the information of the packet data gateway of pre-stored current service.
Wherein, above-mentioned creation session request can also carry disaster tolerance mark, and disaster tolerance mark indicates that this business is that disaster tolerance is extensive
Multiple business, rather than new business, the gateway of adapter tube do not need to send creation meeting to packet data gateway according to disaster tolerance mark
Words request re-establishes carrying, and only need to send to packet data gateway modification carrying request modify original bearing parameter thus
Recovering bearing.
The gateway of step S408, adapter tube send modification carrying request, modification carrying to corresponding packet data gateway
Request carries the information of the packet data gateway of current service.
Step S410, modification of the packet data gateway of current service to original carrying data, such as the SGW mark of adapter tube
Knowledge, IP, tunnel endpoint identifier (Tunnel Endpoint ID, TEID) aspect data, and to the gateway of adapter tube send out
Send modification carrying response.
The gateway of step S412, adapter tube return to creation conversational response to the mobility management entity of current service.
The mobility management entity of step S414, current service return to business received message to user.
Above-described embodiment, when mobility management entity detects the gateway failure of current service, by what is stored before
Disaster tolerance data transmission is to the gateway of adapter tube, and the gateway of adapter tube is according to the information of the packet data gateway in disaster tolerance data
Corresponding packet data gateway is sent by service message, so that real-time recovery user's calling service, improves LTE network reliability
And business service quality.
For called disaster-tolerant recovery of the invention, when the gateway failure of user service, the packet count of current service
Downlink business request, the mobility pipe of the packet data gateway of current service stored user's current service are received according to gateway
The information of entity is managed, packet data gateway sends to the gateway of adapter tube and carries pre-stored mobility management entity information
Downlink trigger notice, the gateway of adapter tube according to entrained mobility management entity information by downlink trigger notice send to
The mobility management entity of current service will not can not restore industry because of the mobility management entity that can not find current service
Business, mobility management entity re-establish carrying by paging to user and triggering according to original information, it is ensured that user's quilt
Business is made normally to handle, without waiting for a TAU update cycle, so that it may real-time recovery user's called service.
Fig. 5 is gateway disaster recovery method called service disaster tolerance flow diagram of the present invention.With reference to Fig. 5, the present embodiment
Called service disaster-tolerant recovery process is as follows:
Step S502, packet data gateway receive downlink data.
Step S504, packet data gateway detects the gateway of current service failure, to the service network of adapter tube
It closes and sends downlink trigger notice, downlink trigger notice carries the information of the mobility management entity of pre-stored current service.
Wherein, downlink trigger notice message can for example pass through Downlink Triggering Notification message
It realizes.
Step S506, the mobility management entity for the current service that the gateway of adapter tube is carried according to downlink trigger notice
Information downlink trigger notice is sent to corresponding mobility management entity.
Step S508, the mobility management entity of current service return to downlink trigger notice to the gateway of adapter tube and ring
It answers.
Wherein, downlink trigger notice response message can for example pass through Downlink Triggering Response message
It realizes.
The gateway of step S510, adapter tube are responded to packet data gateway converting downlink trigger notice.
The mobility management entity of step S512, current service send paging request to user.
Step S514, user return to page response to the mobility management entity of current service.
The mobility management entity of step S516, current service send creation session request, wound to the gateway of adapter tube
Build the information that session request carries the packet data gateway of current service.
Wherein, creation session request can also carry disaster tolerance mark, and the function and purposes of disaster tolerance mark are with reference to aforementioned, here
It repeats no more.
The gateway of step S518, adapter tube send modification carrying request to the packet data gateway of current service.
The packet data gateway of step S520, current service return to modification carrying response to the gateway of adapter tube.
Step S522, the gateway of adapter tube return to creation conversational response to the mobility management entity of current service and disappear
Breath.
Downlink data is sent user by the packet data gateway of step S524, current service.
Above-described embodiment stores the mobility management entity information of current service by packet data gateway, current service
When gateway failure, the mobility management entity information in the disaster tolerance data stored before is transmitted to and connects by packet data gateway
The gateway of pipe and real-time recovery called service, to improve LTE network reliability and business service quality.
Fig. 6 is the structural schematic diagram of gateway disaster tolerance system one embodiment of the present invention.As shown in fig. 6, the present embodiment
System 600 include mobility management entity 602 and packet data gateway 604.
Mobility management entity 602, the information of the packet data gateway 604 for storing current service detect current
After the gateway failure of service, the information of the packet data gateway 604 of storage is transmitted to the gateway of adapter tube.
Packet data gateway 604, the information of the mobility management entity 602 for storing current service detect current
After the gateway failure of service, the information of the mobility management entity 602 of storage is transmitted to the gateway of adapter tube.
Above-described embodiment stores the information of the packet data gateway of current service, packet data by mobility management entity
Gateway stores the information of the mobility management entity of current service, and when the gateway failure of current service, mobile management is real
Body real-time recovery user's calling service, packet data gateway by the gateway of the disaster tolerance data transmission stored before to adapter tube
The real-time recovery called service by the gateway of the disaster tolerance data transmission stored before to adapter tube, so that improving LTE network can
By property and business service quality.
Fig. 7 is the structural schematic diagram of one embodiment of mobility management entity 602 of the present invention.As shown in fig. 7, this implementation
Example mobility management entity 602 include:
Memory module 702, the information of the packet data gateway 604 for storing current service.
Sending module 704, after the gateway failure for detecting current service, by the packet data gateway of storage
604 information is transmitted to the gateway of adapter tube.
Above-described embodiment stores the letter of the packet data gateway of current service by the memory module of mobility management entity
Breath, when the gateway failure of current service, the sending module of mobility management entity is by point of the current service stored before
Group data gateway information be transmitted to adapter tube gateway and real-time recovery user's calling service.
Fig. 8 is the structural schematic diagram of the further embodiment of mobility management entity 602 of the present invention.As shown in figure 8, this reality
The memory module 702 for applying example includes:
Selecting unit 8022, for selecting gateway and packet data gateway in response to Client-initiated attach request.
Storage unit 8024, the information of the packet data gateway 604 for storing selection.
Fig. 9 is the structural schematic diagram of another embodiment of mobility management entity 602 of the present invention.As shown in figure 9, this reality
The sending module 704 for applying example includes:
Detection unit 9042 detects that the gateway of current service occurs for responding Client-initiated service request
Failure；
Transmission unit 9044, for sending creation session request to the gateway of adapter tube, the creation session request is taken
The information of packet data gateway with pre-stored current service, so as to adapter tube gateway according to the grouping of current service
Modification carrying request is sent to corresponding packet data gateway by the information of data gateway.
Sending module further comprises: selecting unit 9046, for the gateway according to data configuration selection adapter tube.
Figure 10 is the structural schematic diagram of one embodiment of packet data gateway 604 of the present invention.As shown in Figure 10, this implementation
Example packet data gateway 604 include:
Memory module 1002, the information of the mobility management entity 602 for storing current service.
Sending module 1004, it is after the gateway failure for detecting current service, the mobile management of storage is real
The information of body 602 is transmitted to the gateway of adapter tube.
Above-described embodiment stores the letter of the mobility management entity of current service by the memory module of packet data gateway
Breath, when the gateway failure of current service, the sending module of packet data gateway is by the movement of the current service stored before
The information of property management entity is transmitted to the gateway of adapter tube and real-time recovery user's calling service.
Figure 11 is the structural schematic diagram of the further embodiment of packet data gateway 604 of the present invention.As shown in figure 11, this reality
The memory module 1002 for applying the packet data gateway 604 of example includes:
Receiving unit 1102, the gateway for receiving current service forward from mobility management entity 602
Session request is created, creation session request carries the information of mobility management entity 602 and the information of packet data gateway 604.
Storage unit 1104, for storing the information of mobility management entity 602.
As shown in figure 11, the sending module 1004 of the packet data gateway 604 of the present embodiment, comprising:
Detection unit 1106, for detecting the gateway failure of current service；
Transmission unit 1108, for sending downlink trigger notice to the gateway of adapter tube, the downlink trigger notice is taken
The information of mobility management entity with pre-stored current service, so as to adapter tube gateway according to the shifting of current service
Downlink trigger notice is sent to corresponding mobility management entity by the information of mobility management entity.
In one embodiment, transmission unit 1108 are also used to respond the page response of user's return, the service to adapter tube
Gateway sends creation session request, and the creation session request carries the information of the packet data gateway of current service, to connect
Modification carrying request is sent to corresponding packet count according to the information of the packet data gateway of current service by the gateway of pipe
According to gateway.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of gateway disaster recovery method characterized by comprising
Mobility management entity stores the information of the packet data gateway of current service, and the packet data gateway is from current
The letter of the mobility management entity of current service is extracted and stored in the creation session request of the gateway forwarding of service
Breath；
After the mobility management entity detects the gateway failure of current service, by the letter of the packet data gateway of storage
Breath is transmitted to the gateway of adapter tube；
After the packet data gateway detects the gateway failure of current service, by downlink trigger notice by the shifting of storage
The information of mobility management entity is transmitted to the gateway of adapter tube, so that the movement of the gateway of adapter tube to current service
Property management entity forward the downlink trigger notice；
The mobility management entity calling called subscriber；
The mobility management entity sends creation session request to the gateway of adapter tube, and the creation session request carrying is worked as
The information and disaster tolerance mark of the packet data gateway of preceding service, disaster tolerance mark indicate that this business is the business of disaster-tolerant recovery, with
So that the gateway of adapter tube re-establishes carrying by modification bearing mode and the packet data gateway according to disaster tolerance mark；
The mobility management entity receives the creation conversational response that the gateway of adapter tube returns；
Downlink data is sent called subscriber by the packet data gateway.
2. gateway disaster recovery method according to claim 1, which is characterized in that the mobility management entity storage is worked as
The information of the packet data gateway of preceding service, and the mobile management of packet data gateway storage current service is real
The information of body, comprising:
The mobility management entity selects gateway and packet data gateway in response to Client-initiated attach request, and
Store the information of the packet data gateway of selection；
The mobility management entity sends creation session request to the gateway of current service, and the creation session request is taken
The information of information and packet data gateway with mobility management entity；
The packet data gateway receives the packet data that the gateway of current service is carried according to the creation session request
The creation session request of the information forwarding of gateway, and store the information of mobility management entity.
3. gateway disaster recovery method according to claim 1, which is characterized in that the mobility management entity detects
After the gateway failure of current service, the information of the packet data gateway of storage is transmitted to the gateway of adapter tube, comprising:
The mobility management entity responds Client-initiated service request, detects that event occurs for the gateway of current service
Barrier sends creation session request to the gateway of adapter tube, and the creation session request carries pre-stored current service
The information of packet data gateway, so that the gateway of adapter tube holds modification according to the information of the packet data gateway of current service
It carries request and is sent to corresponding packet data gateway.
4. gateway disaster recovery method according to claim 1, which is characterized in that the packet data gateway, which detects, works as
After the gateway failure of preceding service, the information of the mobility management entity of storage is transmitted to the gateway of adapter tube, comprising:
After the packet data gateway detects the gateway failure of current service, downlink touching is sent to the gateway of adapter tube
It sends out public notice, the downlink trigger notice carries the information of the mobility management entity of pre-stored current service, to take over
Gateway downlink trigger notice is sent to by corresponding mobility according to the information of the mobility management entity of current service
Management entity.
5. gateway disaster recovery method according to claim 1, which is characterized in that the information of the mobility management entity
At least one information in mark and Internet protocol address including mobility management entity；
The information of the packet data gateway includes at least one in the mark and Internet protocol address of packet data gateway
Information.
6. a kind of packet data gateway characterized by comprising
Memory module, for being extracted from the creation session request that the gateway of current service forwards and storing current service
The information of mobility management entity；
Sending module, after the gateway failure for detecting current service, by downlink trigger notice by the movement of storage
Property management entity information be transmitted to the gateway of adapter tube so that the mobility of the gateway of adapter tube to current service
Management entity forwards the downlink trigger notice, so that the mobility management entity calling called subscriber, and to the clothes of adapter tube
Be engaged in gateway initiate creation session process, after the gateway of the packet data gateway and adapter tube re-establishes carrying, will under
Row data are sent to called subscriber.
7. packet data gateway according to claim 6, which is characterized in that the memory module includes:
Receiving unit, the creation session from mobility management entity that the gateway for receiving current service forwards are asked
It asks, the creation session request carries the information of mobility management entity and the information of packet data gateway；
Storage unit, for storing the information of mobility management entity.
8. packet data gateway according to claim 6, which is characterized in that the sending module, comprising:
Detection unit, for detecting the gateway failure of current service；
Transmission unit, for sending downlink trigger notice to the gateway of adapter tube, the downlink trigger notice carrying is deposited in advance
The information of the mobility management entity of the current service of storage, so as to adapter tube gateway according to the mobile management of current service
Downlink trigger notice is sent to corresponding mobility management entity by the information of entity.
9. packet data gateway according to claim 8, which is characterized in that the transmission unit is also used to respond user
The page response of return sends creation session request to the gateway of adapter tube, and the creation session request carries current service
Packet data gateway information, so that the gateway of adapter tube will be modified according to the information of the packet data gateway of current service
Carrying request is sent to corresponding packet data gateway.
10. a kind of gateway disaster tolerance system characterized by comprising mobility management entity and claim 6-9 are any
The packet data gateway,
Wherein, mobility management entity includes:
Memory module, the information of the packet data gateway for storing current service；
After the gateway failure for detecting current service, the information of the packet data gateway of storage is passed for sending module
It is sent to the gateway of adapter tube,
The sending module of mobility management entity includes:
Detection unit detects that the gateway of current service breaks down for responding Client-initiated service request；
Transmission unit, for sending creation session request to the gateway of adapter tube, the creation session request carrying is deposited in advance
The information and disaster tolerance mark of the packet data gateway of the current service of storage, disaster tolerance mark indicate that this business is the industry of disaster-tolerant recovery
Business, so that the gateway of adapter tube requests modification carrying according to the information of disaster tolerance mark and the packet data gateway of current service
It is sent to corresponding packet data gateway, to re-establish carrying with the packet data gateway.
11. system according to claim 10, which is characterized in that the memory module of mobility management entity includes:
Selecting unit, for selecting gateway and packet data gateway in response to Client-initiated attach request；
Storage unit, the information of the packet data gateway for storing selection.
12. system according to claim 10, which is characterized in that the sending module of mobility management entity further include:
Selecting unit, for the gateway according to data configuration selection adapter tube.
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| CN111757401B (en) * | 2019-03-29 | 2021-12-14 | 华为技术有限公司 | Gateway selection system and method |
| WO2021047578A1 (en) * | 2019-09-12 | 2021-03-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for failure management |
| CN112543468B (en) * | 2019-09-23 | 2022-11-18 | 华为技术有限公司 | Disaster recovery method for gateway equipment and communication equipment |
| CN111130906B (en) * | 2019-12-31 | 2021-06-08 | 华为技术有限公司 | Gateway fault recovery method and device |
| CN117014297A (en) * | 2022-04-28 | 2023-11-07 | 华为技术有限公司 | User plane management method, control plane device and user plane device |
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