CN106465094B

CN106465094B - A kind of method, relevant apparatus and the communication system of business disaster tolerance

Info

Publication number: CN106465094B
Application number: CN201580033581.1A
Authority: CN
Inventors: 陈波; 范昱; 孙晓姬
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-01-30
Filing date: 2015-01-30
Publication date: 2019-10-22
Anticipated expiration: 2035-01-30
Also published as: WO2016119262A1; CN106465094A

Abstract

The embodiment of the invention provides method, relevant apparatus and the communication system of a kind of business disaster tolerance, solve the problems, such as that prior art business disaster tolerance effect is poor.This method comprises: after the mobile management entity MME failure of user equipment (UE) attachment, it services MME and receives the inquiry request message that network element is sent, information corresponding to the business for the MME request UE that inquiry request message is used to adhere to user equipment (UE), inquiry request message includes the mark of the MME of UE attachment and the mark of UE, and the MME and service MME of UE attachment are located in the area of the same pond MME；Service the user information that MME obtains UE according to the mark of UE；MME information according to corresponding to the business that the user information of UE determines UE is serviced, and sends query response message to network element, information corresponding to the business comprising UE in query response message.This method is suitable for field of communication technology.

Description

A kind of method, relevant apparatus and the communication system of business disaster tolerance

Technical field

The present invention relates to field of communication technology more particularly to a kind of method, relevant apparatus and the communication systems of business disaster tolerance.

Background technique

Under long term evolution (Long Term Evolution, LTE) network architecture, mobile management entity (Mobility Management Entity, MME) Chi Qu (Pool) is multiple MME while being identical wireless zone service, in MME Pool Each MME and MME Pool in all base station interconnections, the MME in MME Pool realizes resource-sharing, traffic load sharing.

But existing business disaster recovery method effect is poor, for example, executing when UE is attached on current MME based on LTE Voice (Voice over LTE, VoLTE) called service when, if current MME breaks down, due to the current MME without Relevant to the called service of the VoLTE of the UE work of method processing causes this called service of VoLTE of UE to fail, only when The UE is re-attached to after the MME of a normal work in the area of the pond MME, is provided by the MME of the normal work for the UE VoLTE is called corresponding service, so that the VoLTE called service of UE is restored.

Therefore, by the prior art, the VoLTE called service of UE cannot once succeed, also, UE is heavy from failure MME Time needed for being newly attached to the MME worked normally in the area of the pond MME is longer, causes user experience poor.

Summary of the invention

The embodiment of the present invention provides method, relevant apparatus and the communication system of a kind of business disaster tolerance, solves existing skill Art is when the UE MME adhered to breaks down, the poor problem of business disaster tolerance effect.

In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that

In a first aspect, the embodiment of the invention provides a kind of methods of business disaster tolerance, this method comprises:

After the mobile management entity MME failure of user equipment (UE) attachment, service MME receives the inquiry request that network element is sent Message, the inquiry request message are used for information corresponding to the business of UE described in the MME request adhered to the UE, institute State the mark for the MME that inquiry request message includes UE attachment and the mark of the UE, the MME and the clothes of the UE attachment Business MME is located in the area of the same pond MME；

The service MME obtains the user information of the UE according to the mark of the UE；

Service MME information according to corresponding to the business that the user information of the UE determines the UE, and to described Network element sends query response message, information corresponding to the business comprising the UE in the query response message.

In the first possible embodiment, with reference to first aspect, in the mobile management of user equipment (UE) attachment Before entity MME failure, the method also includes:

The user information for the UE that the MME that the service MME receives the UE attachment is sent and the mark of the UE, and Record the corresponding relationship of the user information of the UE and the mark of the UE；

Then the service MME is specifically included according to the user information that the mark of the UE obtains the UE:

The service MME obtains the user information for the UE that the service MME is saved according to the mark of the UE.

In second of possible embodiment, with reference to first aspect, the service MME is obtained according to the mark of the UE The user information of the UE specifically includes:

All MMEs of the service MME into the pond MME area send broadcast request message, the broadcast request message In include the UE mark, user information of the broadcast message for UE described in request；

The service MME receives the broadcast response message of the backup MME of the MME of the UE attachment, and the broadcast response disappears It include the user information of the UE in breath.

In the third possible embodiment, with reference to first aspect into second of first aspect possible embodiment It is any, before the service MME obtains the user information of the UE according to the mark of the UE, this method further include:

The service MME determines the service MME when the UE adheres to according to the mark of the UE MME adhered to After MME breaks down, the MME of service is provided for the UE.

In the 4th kind of possible embodiment, in conjunction with the third possible embodiment, the service MME is according to The mark of the MME of UE attachment determines that the service MME is to provide clothes after the MME of UE attachment breaks down for the UE The MME of business is specifically included:

The mark of MME comprising UE attachment in the mark for the MME that the service MME is pre-configured by judgement, determines When the service MME after MME of UE attachment breaks down, the MME of service is provided for the UE.

In the 5th kind of possible embodiment, with reference to first aspect into the 4th kind of possible embodiment of first aspect It is any, if Home Subscriber register HSS by route agent's node DRA and it is described service MME and the UE attachment MME It is connected, then the network element is the DRA；If the HSS is directly connected with the MME of the service MME and UE attachment, institute Stating network element is the HSS.

In the 6th kind of possible embodiment, with reference to first aspect into the 5th kind of possible embodiment of first aspect It is any, the query response message also includes the mark of the MME of UE attachment.

Second aspect, the embodiment of the invention provides a kind of methods of business disaster tolerance, this method comprises:

Network element obtains first path set and the second set of paths corresponding to the mark of purpose mobile management entity MME, Wherein, a paths, the first path set are respectively included at least in the first path set and second set of paths In path be path from the network element to the path of the purpose MME, in second set of paths be from the network element To the path of service MME, the service MME is after the purpose MME breaks down, to be attached on the purpose MME User equipment (UE) provides the MME of service, and the path in the first path set is without the service MME, second tunnel Path in diameter set is located at same Chi Qu without the purpose MME, the service MME and the purpose MME；

The network element sends inquiry request message, the inquiry request message by the path in the first path set Information corresponding to the business of UE described in MME request for adhering to the UE includes in the inquiry request message The mark of the MME of the UE attachment and the mark of the UE, the MME of the UE attachment is the purpose MME；

The inquiry request message, which is sent, by all paths in the first path set in the network element fails it Afterwards, the network element sends the inquiry request message by the path in second set of paths；

The network element receives the query response message that the service MME is sent, and includes described in the query response message Information corresponding to the business of UE.

In the first possible embodiment, in conjunction with second aspect, if Home Subscriber register HSS passes through route agent Node DRA is connected with the MME of the service MME and UE attachment, then the network element is the DRA；If the HSS directly with The service MME is connected with the UE MME adhered to, then the network element is the HSS.

The third aspect, the embodiment of the invention provides a kind of service MME, service MME includes: receiving unit, is obtained single Member, determination unit and transmission unit；

The receiving unit is sent for after the mobile management entity MME failure that user equipment (UE) adheres to, receiving network element Inquiry request message, the inquiry request message be used for the business of UE described in MME request adhere to the UE it is right The information answered, the inquiry request message include the mark and the mark of the UE of the MME of UE attachment, the UE attachment The MME and service MME is located in the area of the same pond MME；

The acquiring unit obtains the user information of the UE for the mark according to the UE；

Institute's determination unit, information corresponding to the business for determining the UE according to the user information of the UE；

The transmission unit includes institute in the query response message for sending query response message to the network element State information corresponding to the business of UE.

In the first possible embodiment, in conjunction with the third aspect, the receiving unit is also used to: it is attached to receive the UE The user information of the UE that sends of MME and the mark of the UE and record the user information of the UE and the mark of the UE The corresponding relationship of knowledge；

The acquiring unit is specifically used for: according to the mark of the UE, obtaining the use for the UE that the service MME is saved Family information.

In second of possible embodiment, in conjunction with the third aspect, the transmission unit is also used to:

All MME into the pond MME area send broadcast request message, include the UE in the broadcast request message Mark, user information of the broadcast message for UE described in request；

The receiving unit is also used to: the broadcast response message of the backup MME of the MME of the UE attachment is received, it is described wide Broadcast the user information in response message comprising the UE.

In the third possible embodiment, in conjunction with the third aspect into second of the third aspect possible embodiment It is any, the determination unit is also used to:

According to the mark of the MME of UE attachment, determine that the service MME is when the MME of UE attachment breaks down Afterwards, the MME of service is provided for the UE.

In the 4th kind of possible embodiment, in conjunction with the third possible embodiment, the determination unit is specifically used In: the mark of the MME comprising UE attachment in the mark for the MME being pre-configured by judgement works as institute when determining the service MME State UE attachment MME break down after, provide the MME of service for the UE.

In the 5th kind of possible embodiment, in conjunction in the 4th kind of possible embodiment of the third aspect to the third aspect It is any, if Home Subscriber register HSS by route agent's node DRA and it is described service MME and the UE attachment MME It is connected, then the network element is the DRA；If the HSS is directly connected with the MME of the service MME and UE attachment, institute Stating network element is the HSS.

In the 6th kind of possible embodiment, in conjunction in the 5th kind of possible embodiment of the third aspect to the third aspect It is any, the query response message also includes the mark of the MME of UE attachment.

Fourth aspect, the embodiment of the invention provides a kind of network element, which includes: acquiring unit, transmission unit and is connect Receive unit；

The acquiring unit, for obtain first path set corresponding to the mark of purpose mobile management entity MME and Second set of paths, wherein a paths are respectively included at least in the first path set and second set of paths, it is described Path in first path set is the path from the network element to the path of the purpose MME, in second set of paths For from the network element, to the path of service MME, the service MME is after the purpose MME breaks down, described in being attached to User equipment (UE) on purpose MME provides the MME of service, the path in the first path set without the service MME, Path in second set of paths is located at same pond without the purpose MME, the service MME and the purpose MME Area；

The transmission unit, it is described to look into for sending inquiry request message by the path in the first path set Ask information corresponding to the business of UE described in the MME request that request message is used to adhere to the UE, the inquiry request The mark of MME comprising UE attachment in message and the mark of the UE, the MME of the UE attachment is the purpose MME；

The transmission unit is also used to: being sent in the transmission unit by all paths in the first path set After the inquiry request message failure, the inquiry request message is sent by the path in second set of paths；

The receiving unit, the query response message sent for receiving the service MME, in the query response message Information corresponding to business comprising the UE.

In the first possible embodiment, in conjunction with fourth aspect, if Home Subscriber register HSS passes through route agent Node DRA is connected with the MME of the service MME and UE attachment, then the network element is the DRA；If the HSS directly with The service MME is connected with the UE MME adhered to, then the network element is the HSS.

5th aspect, the embodiment of the invention provides a kind of service MME, the service MME includes: receiver, processor, Bus, memory and transmitter；

The receiver, for after the mobile management entity MME failure that user equipment (UE) adheres to, receiving what network element was sent Inquiry request message, the inquiry request message are used for the business institute of UE described in the MME request adhered to user equipment (UE) Corresponding information, the inquiry request message include the mark of the UE, and the MME and the service MME of the UE attachment are located at In the area of the same pond MME；

The processor obtains the instruction in the memory by the bus, for being obtained according to the mark of the UE Take the user information of the UE；Information corresponding to the business for determining the UE according to the user information of the UE；

The transmitter includes described in the query response message for sending query response message to the network element Information corresponding to the business of UE.

6th aspect, the embodiment of the invention provides a kind of network element, which includes: receiver, processor, and bus is deposited Reservoir and transmitter；

The processor obtains the instruction in the memory by the bus, with real for obtaining purpose mobile management First path set and the second set of paths corresponding to the mark of body MME, wherein the first path set and described second A paths are respectively included at least in set of paths, the path in the first path set is from the network element to the purpose The path of MME, the path in second set of paths are the path from the network element to service MME, and the service MME is to work as After the purpose MME breaks down, the user equipment (UE) to be attached on the purpose MME provides the MME of service, and described first Path in set of paths without the service MME, path in second set of paths without the purpose MME, The service MME and purpose MME is located at same Chi Qu；

The transmitter, for sending inquiry request message, the inquiry by the path in the first path set Information corresponding to the business of UE described in the MME request that request message is used to adhere to the UE, the inquiry request disappear The mark of MME comprising UE attachment in breath and the mark of the UE；

The inquiry request message is sent by all paths in the first path set in the transmitter to fail Later, the transmitter sends the inquiry request message by the path in second set of paths；

The receiver wraps in the query response message for receiving the query response message of the service MME transmission Information corresponding to business containing the UE.

7th aspect, the embodiment of the invention provides a kind of communication system, the communication system includes at least such as third party MME described in MME described in face or the third aspect any one possible embodiment, and the net as described in fourth aspect Network element described in member or fourth aspect any one possible embodiment；Or

The communication system includes at least the MME as described in terms of the 5th, and the network element as described in terms of the 6th.

The embodiment of the invention provides method, relevant apparatus and the communication systems of a kind of business disaster tolerance, solve existing skill The poor problem of art business disaster tolerance effect, in the method, when the MME of UE attachment breaks down and there are the business corresponding to UE When, the inquiry request message of HSS is sent to and services MME by HSS or DRA, and service MME believes according to the user that the mark of UE obtains UE Breath, and information corresponding to the business of UE is obtained by the user information of UE, and the corresponding information of the business of the UE is sent To HSS, when breaking down so as to avoid the MME adhered to as UE, the business of UE cannot once succeed caused disaster tolerance effect Poor problem.

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 for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1 is a kind of LTE network framework schematic diagram；

Fig. 2 is a kind of method flow diagram of business disaster tolerance；

Fig. 3 is the networking relation schematic diagram of HSS and MME a kind of；

Fig. 4 is the method flow diagram of another business disaster tolerance；

Fig. 5 is the method flow diagram of another business disaster tolerance；

Fig. 6 is a kind of service MME schematic diagram；

Fig. 7 is a kind of network element schematic diagram；

Fig. 8 is another network element or another service MME schematic diagram.

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.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

In conjunction with Fig. 1, a kind of LTE network framework is illustratively described, in the packet switch (packet of the framework Switching, PS) in domain core net, MME1, MME2 and MME3 form MME Pool, gateway (Serving Gateway, SGW) and message data network gateway (Packet Data Network Gateway, PGW) composition gateway Chi Qu (Gateway Pool, GW Pool).In addition, also including Home Subscriber register (Home in the ps domain core net of LTE network Subscriber Server, HSS).

In the access net of the framework, each mobile communication equipment is connected with the base station in LTE access net, in access net Base station is connected with each MME in MME Pool, it should be noted that is only exemplary in Fig. 1 and describes part network element Connection relationship, such as HSS be actually there are in connection relationship and MME Pool with each MME in MME Pool MME two it is two interconnected etc..

In the prior art, when there are the VoLTE called service of UE1, HSS needs to inquire the letter that UE1 is currently located domain Breath, i.e. UE1 are currently at the domain packet switch (packet switching, PS) still in circuit switching (circuit Switching, CS) domain information, at this point, the MME1 that adheres to UE1 of HSS sends inquiry request message, with request UE1's Above- mentioned information, but since MME1 failure, the inquiry request of HSS fail, cause the VoLTE called service of UE1 to fail.

Now it is necessary to which UE1 is waited to be re-attached to a normal work in MME Pool by active initiating business request The MME of work, after MME2, the VoLTE called service of UE1 can be just normally carried out, but UE1 is re-attached to one normally The MME upper required time is longer, causes user experience poor.

To solve the problems, such as that prior art disaster tolerance effect is poor, the embodiment of the invention provides a kind of sides of business disaster tolerance Method, so that the mark of the available MME1 of network elements such as HSS or route agent's node (Diameter Routing Agent, DRA) Know two kinds of corresponding set of paths, one of set of paths is from the network element to the set in the path of the MME1, separately A kind of path is that (MME2 is after the MME1 breaks down, for attachment for the set in the path from the network element to MME2 UE on the MME1 provides the MME of service), thus the network element can by the network element to the path of the MME1, Inquiry request message is sent to the MME1, (such as the UE is current with information corresponding to the business of UE described in request The information in place domain), if message sends failure, illustrate that the MME1 sends failure, the network element can pass through the net Member arrives the path of the MME2, and Xiang Suoshu MME2 sends inquiry request message, and the MME2 can be according in inquiry request message The identification information for the UE for being included inquires the user information of the UE such as the IMSI information of UE, and believes from the user of the UE The information that UE is currently located domain is inquired in breath, and the UE information for being currently located domain is sent to HSS.

Specifically, include the subscription data information of UE in the user information of UE, information corresponding to the business of UE etc., when depositing In the business of UE, as UE VoLTE called service when, MME can be got from the user information of UE handles these business institutes The information needed.

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.

In conjunction with Fig. 2, the embodiment of the invention provides a kind of methods of business disaster tolerance, this method comprises:

201, after the mobile management entity MME failure of user equipment (UE) attachment, service MME receives the inquiry that network element is sent Request message, the inquiry request message are used for letter corresponding to the business of UE described in the MME request adhered to the UE Breath, the inquiry request message include the mark of the MME of UE attachment and the mark of the UE, the MME of UE attachment and The service MME is located in the area of the same pond MME.

It should be noted that information corresponding to the business of the UE, refers to when there are the business of UE, HSS needs are looked into Information required for the processing of the inquiry business, for example, when the business of the UE is VoLTE called service, the business of the UE Corresponding information is the information that the UE is currently located domain.

Specifically, the networking relationship of HSS and MME a kind of is illustratively described in conjunction with Fig. 3, when HSS and MME such as Fig. 3 institute Show when being connected by route agent's node (Diameter Routing Agent, DRA) with the MME in the area of the pond MME, it is described Network element is the DRA, and when the MME in the HSS and the pond MME area is connected directly, the network element is the HSS.

Specifically, when information corresponding to HSS needs to inquire the business of the UE, MME that the HSS can adhere to UE Inquiry request message is sent, includes the mark of UE in the inquiry request message, such as the international mobile subscriber identity of UE (International Mobile Subscriber Identification Number, IMSI).

Assuming that the UE is UE1, on the MME1 of UE1 attachment, when MME1 failure, HSS or DRA are by the inquiry request message It is sent to a normal MME in the area of the pond MME, the service MME on MME2, as UE1.

202, the service MME obtains the user information of the UE according to the mark of the UE.

After MME2 receives the inquiry request message, the mark institute for being stored with UE is judged whether according to the mark of UE first The user information of the corresponding UE, it should be noted that the user information of UE includes the subscription data information of UE, the business of UE Corresponding information etc., when there are UE business, as UE VoLTE called service when, MME can be obtained from the user information of UE Information needed for handling these business to HSS, i.e., information corresponding to the business of the UE of the described inquiry request message request. If MME2 is stored with the user information of the UE, the MME2 obtains what the service MME was saved according to the mark of the UE The user information of the UE, if MME2 does not store the user information of the UE, the service MME is into the pond MME area All MME send broadcast request message, include the mark of the UE in the broadcast request message, the broadcast message is used for The user information of UE described in request；It, can be according to the UE's after the backup MME of only MME1 receives the broadcast message Mark obtains the user information of the UE, and sends broadcast response message to MME2, includes described in the broadcast response message The user information of UE.

Specifically, each MME obtains the backup relation of all MME in the area of pond in advance in the pond MME area shown in Fig. 3 And the interface message of each MME.In conjunction with Fig. 3, it is assumed that MME3 is that the backup MME, MME2 of MME1 are the backup MME of MME3, MME1 is the backup MME of MME2, then the user information for the UE being attached on MME1 is sent to MME3, MME3 record in advance by MME1 The corresponding relationship of the mark of the user information and UE of UE.

Therefore, when MME3 is the backup MME of MME1, MME2 is received after the inquiry request message according to the UE's Mark judgement is without the user information of the storage UE, then MME2 sends broadcast message in the area of the pond MME, and MME3 is received The user information of the UE is obtained after the broadcast message according to the mark of the UE, and sends broadcast response message to MME2, It include the user information of the UE in the broadcast response message.

Certainly, if the backup MME, MME2 of the MME2 inherently MME1 can directly acquire guarantor according to the mark of UE The user information of the UE deposited.

203, service MME information according to corresponding to the business that the user information of the UE determines the UE, and to The network element sends query response message, information corresponding to the business comprising the UE in the query response message.

The service MME after the user information of UE as described in being got MME2, obtains institute from the user information of the UE Information corresponding to the business of UE is stated, and sends inquiry corresponding message to the network element, includes institute in the query response message State information corresponding to the business of UE.

The embodiment of the invention provides a kind of methods of business disaster tolerance, after the MME of UE attachment breaks down, HSS or DRA Another the normal work inquiry request message of information corresponding to the business for being used for request UE being sent in the area of the pond MME On the MME of work, service MME of the MME of the normal work as UE, service MME obtains the user information of UE according to the mark of UE, And information corresponding to the business of UE is obtained by the user information of UE, service MME sends query response message to HSS, this is looked into Information corresponding to the business in response message comprising UE is ask, so that HSS information according to corresponding to the business of UE is to UE Business handled, thus the business of the UE avoided cannot once succeed brought by the poor problem of disaster tolerance effect.

To solve the problems, such as that prior art disaster tolerance effect is poor, in conjunction with Fig. 4, the embodiment of the invention also provides a kind of business The method of disaster tolerance, this method comprises:

401, after the mobile management entity MME failure of user equipment (UE) attachment, service MME receives the inquiry that network element is sent Request message, the inquiry request message are used for letter corresponding to the business of UE described in the MME request adhered to the UE Breath, the inquiry request message include the mark of the MME of UE attachment and the mark of the UE, the MME of UE attachment and The service MME is located in the area of the same pond MME.

In conjunction with Fig. 3, the networking relationship of MME and HSS a kind of is illustratively described, in Fig. 3, MME1 and MME2 are MME Two MME in Pool, HSS are respectively connected with by DRA and MME1 and MME2, and connection relationship is as shown in Figure 3, it is assumed that UE1 attachment MME be MME1.

Wherein, first path set and the second set of paths are pre-configured on DRA, wherein the path in first path set For from the path of DRA to the MME1, and the path in the first path set reaches MME1 without the MME2, described Path in second set of paths be from the path of DRA to the MME2, and the path in second set of paths without The MME1 reaches MME2, wherein the priority in the path in first path set is greater than the path in the second set of paths Priority.

When there are business corresponding to the UE1, such as VoLTE called service of the UE1, the HSS needs to inquire The information in the domain that information corresponding to the business of UE1, such as UE1 are currently located, at this point, the HSS is asked by sending inquiry Message is sought to request information corresponding to the business of the UE1, specifically, the purpose MME of the inquiry request message is described The MME of UE1 attachment includes the mark of the MME1 in the inquiry request message, such as the IP of the host name of MME1 or MME1 Location carries the mark of UE in the inquiry request message, after the DRA receives the inquiry request message, described in judgement First path set and the second set of paths corresponding to the mark of MME1, it is excellent due to the path in the first path set First grade is greater than the priority in the path in second set of paths, then the DRA is first passed through in the first path set Path is forwarded the inquiry request message, and in the case where MME1 failure, DRA passes through all in first path set Path forwards inquiry request message failure, then the DRA is by the path in second set of paths by the inquiry Request message is forwarded to MME2, then the MME2 handles the inquiry request message.

For example, in conjunction with Fig. 3, it is assumed that DRA-B receives the business for UE described in request that the HSS is sent The inquiry request message of corresponding information carries the identification information of MME1 in the inquiry request message, it is assumed that and it is mme-a, Path corresponding to the upper mark that can be pre-configured three purpose MME of DRA-B, is DRA-B → MME1 respectively, DRA-B → DRA-A → MME1 and DRA-B → MME2, wherein preceding two paths in first path set, priority be higher than third Paths, the purpose for the arrangement is that, when MME1 is worked normally, guarantee that MME1 provides service for the UE1, only when described When MME1 failure, service just is provided for the UE1 by the MME, i.e. MME2.

When MME1 failure, DRA-B can not successfully forwarded the inquiry request message by preceding two paths, then institute It states DRA-B and the inquiry request message is forwarded to by MME2 by third path, MME2 carries out the inquiry request message Processing.

It is of course also possible to be not provided with the first path set and second set of paths, it is only necessary to guarantee when described When the purpose MME of inquiry request message is the MME of UE attachment, the mark institute of the purpose MME configured on the DRA In corresponding mulitpath, the UE attachment is reached without the MME of the mark of the MME for being pre-configured with the UE attachment The priority in the path of MME is greater than the priority that the path of the MME is reached without the MME that the UE adheres to, specifically , it is not limited in the embodiment of the present invention.

Certainly, there is no DRA between HSS and MME, but under the scene that is connected directly of HSS and MME, can also by The path of a plurality of MME that the UE attachment is reached without the MME, and the MME adhered to without the UE are configured on HSS The path of the MME is reached, and the priority in path is set, so that reaching the road of the MME of the UE attachment without the MME The priority of diameter is higher than the priority that the path of the MME is reached without the MME that the UE adheres to.

If the MME of UE attachment is normal, will be inquired by reaching the path of MME of the UE attachment without the MME Request message is sent to the MME of UE attachment, after the MME of UE attachment breaks down, then the MME by adhering to without the UE Inquiry request message is sent to MME by the path for reaching the MME, specifically, how will look into after the MME failure of UE attachment Inquiry request message is sent to the MME can be there are many method, and it is not limited in the embodiment of the present invention.

402, the service MME determines that the service MME is when the UE is attached according to the mark of the UE MME adhered to MME break down after, provide the MME of service for the UE.

Specifically, assuming the host name of the MME for being identified as UE attachment of the MME of the UE attachment, scene shown in Fig. 3 Under, it is assumed that the MME that UE1 adhered to originally is MME1.The mark of MME1 is configured on MME1, such as the host name mme-a, MME2 of MME1 The upper mark configured with MME1, such as the mark of the host name mme-a and MME2 of MME1, such as the host name mme-b of MME2.

After MME2 receives the inquiry request message, since the purpose MME host of the inquiry request message is entitled The host name mme-a, MME2 of the MME of the UE attachment judges that destination host name is identical with the host name that itself is pre-configured, then MME2 handles the inquiry request message.

403, the service MME obtains the user information of the UE according to the mark of the UE.

404, service MME information according to corresponding to the business that the user information of the UE determines the UE, and to The network element sends query response message, information corresponding to the business comprising the UE in the query response message.

After the MME2 inquires information corresponding to the business of the UE, Xiang Suoshu HSS sends inquiry corresponding message, tool Body, it includes institute in the inquiry corresponding message that the MME, which can send query response message to the HSS by the DRA, Information corresponding to the business of UE is stated, so that industry of the HSS information according to corresponding to the business of the UE to the UE Business is handled.

It further, can also include the host name mme-a for the MME that the UE adheres in the query response message, with So that the MME that the HSS does not perceive UE attachment breaks down, the expense of signaling is reduced.

The embodiment of the invention provides a kind of methods of business disaster tolerance, by preselecting a service MME in the area of the pond MME, And service MME on configuration UE attachment MME mark, as UE adhere to MME host name, when UE attachment MME occur therefore When barrier, HSS or DRA can not be looked by the path for the MME for reaching UE attachment without the service MME being pre-configured by described The MME that request message is successfully forwarded to the UE attachment is ask, then the HSS or DRA without the UE by adhering to MME reach the path of the MME inquiry request message be forwarded to the service MME, the mesh in inquiry request message MME host name be UE attachment MME host name, due to be also configured in the MME UE attachment MME host Name, then the MME judges that the host name of purpose MME is identical as the host name of itself, to carry out the place to inquiry request message Reason solves prior art business disaster tolerance so that the business of UE can once succeed after the MME of UE attachment breaks down The poor problem of effect.

To solve the problems, such as that prior art disaster tolerance effect is poor, the embodiment of the invention also provides a kind of sides of business disaster tolerance Method, in conjunction with Fig. 5, this method comprises:

501, network element obtains first path set and the second path set corresponding to the mark of purpose mobile management entity MME It closes, wherein a paths, the first path collection are respectively included at least in the first path set and second set of paths Path in conjunction is that the path from the network element to the path of the purpose MME, in second set of paths is from the net For member to the path of service MME, the service MME is after the purpose MME breaks down, to be attached on the purpose MME User equipment (UE) the MME of service is provided, the path in the first path set is without the service MME, described second Path in set of paths is located at same Chi Qu without the purpose MME, the service MME and the purpose MME.

For example, Fig. 3 is engaged, DRA-B is the network element, is asked when the DRA-B receives the inquiry that the HSS is sent After seeking message, the mark of the MME comprising UE attachment in the inquiry request message is judged, such as the host name mme- of the UE MME adhered to The MME of a, UE attachment is MME1, and path corresponding to the mark of the MME of three UE attachments is pre-stored in the DRA-B, Path DRA-B → MME1, path DRA-B → DRA-A → MME1 and path are followed successively by according to the sequence of priority from high to low DRA-B→MME2.Then preceding two paths are the path in first path set, and the last item path is the second set of paths In path.

502, the network element sends inquiry request message, the inquiry request by the path in the first path set Message is used for information corresponding to the business of UE described in the MME request adhered to the UE, in the inquiry request message The mark of MME comprising UE attachment and the mark of the UE.

DRA-B first passes through path DRA-B → MME1 and path DRA-B → DRA-A → MME1 turns in first path set Inquiry request message is sent out, when the MME failure of UE attachment, DRA-B forwards the inquiry by the path in first path set Request message failure.

503, the inquiry request message is sent by all paths in the first path set in the network element to lose After losing, the network element sends the inquiry request message by the path in second set of paths.

After DRA-B forwards the inquiry request message failure by all paths in first path set, DRA-B judgement The path that MME1 can not directly be reached without MME2 by two in the higher first path set of priority asks inquiry Message is asked to be sent to MME1, DRA-B is disappeared inquiry request by the path in the second set of paths, i.e. path DRA-B → MME2 Breath is forwarded to the next-hop of DRA-B in the path, i.e. MME2, due to being pre-configured with the host name mme-a of MME1 in MME2, MME2 judges that the destination host name in inquiry request message is identical as the host name of the machine, and the MME2 is to the inquiry request message It is handled, so as to avoid when business corresponding there are UE, which cannot primary successful problem.

It should be noted that the embodiment of the present invention can also be by configuring the MME of UE attachment on the network element Link set corresponding to identification information, wherein the MME that a link connection of the network element is adhered to UE, another link connect It is connected to the MME of the MME identification information for being pre-configured with the UE attachment, for example, in conjunction with Fig. 3, it is assumed that MME1 is that UE1 is attached MME, MME2 be pre-selection the MME configured with MME1 host name be configured on DRA-B by taking the network element DRA-B as an example The link set title of the link of MME1=" DRA-B&MME1 ", fills in the IP address of DRA-B and the IP address of MME1 respectively here, The priority of the link is higher；It is configured to link set title=" DRA-B&MME2 " of the link of MME2 on DRA-B, divides here The IP address of DRA-B and the IP address of MME2 are not filled in, and the priority of the link is lower.

Judge that the host of destination host is entitled after DRA-B receives the inquiry request message of HSS transmission based on this Mme-a, DRA-B first pass through the higher DRA-B&MME1 link pair inquiry request message of priority and are forwarded, in MME1 failure In the case where the inquiry request message retransmission failure, DRA-B passes through priority lower DRA-B&MME2 link pair inquiry again to be asked It asks message to be forwarded, received inquiry request message by MME2 and it is handled.

Specifically, the network element receives the query response message that the MME is sent, it include institute in the query response message State information corresponding to the business of UE.

It should be noted that when as shown in figure 3, the HSS passes through the route agent's node DRA and MME and UE When the MME of attachment is connected, the network element is the DRA.Or directly adhere to the MME and UE as the HSS When MME is connected, the network element is the HSS.

504, the network element receives the query response message that the service MME is sent, and includes in the query response message Information corresponding to the business of the UE.

Specifically, the detail technical features of the embodiment of the present invention can be found in embodiment corresponding to above-mentioned Fig. 2 and Fig. 4, this Inventive embodiments repeat no more this.

The embodiment of the invention provides a kind of methods of business disaster tolerance, in the method, when there are the business corresponding to UE, HSS sends inquiry request message by the MME adhered to UE and obtains information corresponding to the business of the UE, the inquiry request Message includes the mark of the MME of UE attachment, such as the host name of the MME of UE attachment.HSS receives what the HSS was sent The DRA of inquiry request message is preferentially by reaching the path for the MME that the UE adheres to the inquiry request without service MME Message is forwarded, and in the case where the MME failure of UE attachment, the HSS or the DRA forward the inquiry request Message failure, the HSS or the DRA will be described by the path that the MME adhered to without the UE reaches the service MME Inquiry request message is forwarded to the MME, such as described since the service MME is pre-configured with the mark of the MME of the UE attachment The host name of the MME of UE attachment is sentenced after the service MME receives the inquiry request message that the HSS or DRA is sent The mark of the MME for the UE attachment for including in disconnected inquiry request message is identical as host name itself is pre-configured, thus to the inquiry Request message is handled so that when UE attachment MME break down after and there are the business of the UE, such as the UE When VoLTE called service, the business is handled by the service MME, the primary success of business is realized, solves The poor problem of prior art business disaster tolerance effect.

To solve the problems, such as that prior art disaster tolerance effect is poor, the embodiment of the invention also provides a kind of service MME, in conjunction with Fig. 6, service MME include: receiving unit 601, acquiring unit 602, determination unit 603 and transmission unit 604；

The receiving unit 601, for receiving network element after the mobile management entity MME failure that user equipment (UE) adheres to The inquiry request message of transmission, the inquiry request message are used for the business of UE described in the MME request adhered to the UE Corresponding information, the inquiry request message include the mark of the MME of UE attachment and the mark of the UE, and the UE is attached MME and the service MME be located in the area of the same pond MME；

The acquiring unit 602 obtains the user information of the UE for the mark according to the UE；

Institute's determination unit 603, information corresponding to the business for determining the UE according to the user information of the UE；

The transmission unit 604 is used to send query response message to the network element, includes in the query response message Information corresponding to the business of the UE.

The receiving unit 601 is also used to: receiving the user information of the UE that the MME of UE attachment is sent and described The mark of UE and the corresponding relationship for recording the user information of the UE and the mark of the UE；

The acquiring unit 602 is specifically used for: according to the mark of the UE, obtaining the UE that the service MME is saved User information.

Specifically, the transmission unit 604 is also used to:

The receiving unit 601 is also used to: the broadcast response message of the backup MME of the MME of the UE attachment is received, it is described Broadcast the user information in response message comprising the UE.

Optionally, the determination unit 603 is also used to:

Specifically, the determination unit 603 is used for: adhering in the mark for the MME being pre-configured by judgement comprising the UE MME mark, determine it is described service MME when the UE attachment MME break down after, provide service for the UE MME。

Specifically, if Home Subscriber register HSS is attached by route agent's node DRA and the service MME and the UE MME be connected, then the network element be the DRA；If MME phase of the HSS directly with the service MME and UE attachment Even, then the network element is the HSS.

Optionally, the query response message also includes the mark of the MME of the UE attachment.

The embodiment of the invention provides a kind of service MME, service MME is located in same pond area with service MME The disaster tolerance MME of the MME of UE attachment, service MME are pre-configured with the identification information of the MME of UE attachment, such as the master of the UE MME adhered to Machine name information, when there are the corresponding business of the UE, such as VoLTE called service of the UE, HSS is needed by adhering to UE MME send inquiry request message mode inquire information corresponding to the business of the UE, the mesh of the inquiry request message MME be UE attachment MME identification information, when the MME failure of UE attachment, HSS or DRA are by being pre-configured Priority corresponding to the identification information of the MME of the UE attachment is higher to reach the UE attachment without the disaster tolerance MME MME all paths successfully MME, HSS or DRA that the inquiry request message is forwarded to UE attachment can not be passed through it is excellent The inquiry request message is sent to by the path that the lower MME without UE attachment of first grade reaches the disaster tolerance MME The disaster tolerance MME, the disaster tolerance MME judge that the mark of purpose MME is the host name that itself is pre-configured, then disaster tolerance MME is to institute It states inquiry request message to be handled, the business of UE in the case where the MME failure of UE attachment is once succeeded, is solved Prior art business disaster tolerance effect poor problem.

To solve the problems, such as that prior art disaster tolerance effect is poor, the embodiment of the invention also provides a kind of network elements, in conjunction with figure 7, which includes: acquiring unit 701, transmission unit 702 and receiving unit 703；

The acquiring unit 701, for obtaining first path set corresponding to the mark of purpose mobile management entity MME With the second set of paths, wherein respectively include at least a paths, institute in the first path set and second set of paths Stating path in first path set is the road from the network element to the path of the purpose MME, in second set of paths Diameter is the path from the network element to service MME, and the service MME is after the purpose MME breaks down, to be attached to It states the user equipment (UE) on purpose MME and the MME of service is provided, the path in the first path set is without the service MME, the path in second set of paths are located at same without the purpose MME, the service MME and the purpose MME One Chi Qu；

The transmission unit 702, it is described for sending inquiry request message by the path in the first path set Information corresponding to the business of UE described in the MME request that inquiry request message is used to adhere to the UE, the inquiry are asked Ask the mark of the MME comprising UE attachment in message and the mark of the UE；

The transmission unit 702 is also used to: passing through all paths in the first path set in the transmission unit After sending the inquiry request message failure, the inquiry request is sent by the path in second set of paths and is disappeared Breath；

The receiving unit 703, the query response message sent for receiving the service MME, the inquiry response disappear Information corresponding to business in breath comprising the UE.

The embodiment of the invention provides a kind of network element, which is pre-configured with the corresponding mulitpath of purpose MME, wherein The priority for reaching the path of purpose MME without disaster tolerance MME is excellent higher than the path for reaching disaster tolerance MME without purpose MME First grade, the disaster tolerance MME are that the MME of pre-selection adhered to UE is located at same MME Chi Qu and is pre-configured with the master of the MME of UE attachment The MME of machine name after the network element judges the purpose MME of inquiry request message, leads under the scene of the MME failure of UE attachment All path retransmission failures of the higher MME that UE attachment is reached without disaster tolerance MME of priority are crossed, the network element passes through at this time The inquiry request message is sent to disaster tolerance by the path that the lower MME without UE attachment of priority reaches disaster tolerance MME MME is handled the inquiry request message by disaster tolerance MME, so that the business of UE once succeeds, to solve existing skill The poor problem of art business disaster tolerance effect.

To solve the problems, such as that prior art disaster tolerance effect is poor, the embodiment of the invention also provides a kind of service MME, in conjunction with Fig. 8, service MME include: receiver, processor, bus, memory and transmitter；

The receiver, for after the mobile management entity MME failure that user equipment (UE) adheres to, receiving what network element was sent Inquiry request message, the inquiry request message are used for corresponding to the business of UE described in the MME request adhered to the UE Information, the inquiry request message includes the mark of the UE, and the MME and the service MME of UE attachment are positioned at same In the area GeMMEChi；

Specifically, the receiver is also used to: receiving user information and the institute of the UE of the MME transmission of the UE attachment The mark of UE is stated, and records the corresponding relationship of the user information of the UE and the mark of the UE；

The processor is specifically used for: according to the mark of the UE, obtaining the user for the UE that the service MME is saved Information.

Specifically, the transmitter is also used to: all MME in the area of the pond Xiang Suoshu MME send broadcast request message, described It include the mark of the UE, user information of the broadcast message for UE described in request in broadcast request message；

The receiver is also used to: receiving the broadcast response message of the backup MME of the MME of the UE attachment, the broadcast It include the user information of the UE in response message.

Optionally, the processor is also used to: according to the mark of the MME of UE attachment, determining that the service MME is to work as After the MME of the UE attachment breaks down, the MME of service is provided for the UE.

Optionally, the processor is used for: the MME adhered in the mark for the MME being pre-configured by judgement comprising the UE Mark, determine it is described service MME when the UE attachment MME break down after, provide the MME of service for the UE.

To solve the problems, such as that prior art disaster tolerance effect is poor, the embodiment of the invention also provides a kind of network elements, in conjunction with figure 8, which includes: receiver, processor, bus, memory and transmitter；

To solve the problems, such as that prior art disaster tolerance effect is poor, the embodiment of the invention also provides a kind of communication systems, should Communication system includes at least the MME in the embodiment as corresponding to Fig. 6 and the network element in the embodiment as corresponding to Fig. 7, or Person, the communication system include at least the service MME and network element in the embodiment as corresponding to Fig. 8.It should be noted that this hair The detail technical features of embodiment corresponding to bright service MME, network element and communication system can be found in Fig. 2, Fig. 4 and Fig. 5 institute The embodiment of corresponding method, the embodiment that the present invention services MME, network element and communication system repeat no more this.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. a kind of method of business disaster tolerance, which is characterized in that this method comprises:

After the mobile management entity MME failure of user equipment (UE) attachment, service MME receives the inquiry request that network element is sent and disappears It ceases, information corresponding to the business of UE described in the MME request that the inquiry request message is used to adhere to the UE is described Inquiry request message includes the mark of the MME of UE attachment and the mark of the UE, the MME and the service that the UE adheres to MME is located in the area of the same pond MME；

Service MME information according to corresponding to the business that the user information of the UE determines the UE, and to the network element Query response message is sent, information corresponding to the business comprising the UE in the query response message.

2. the method according to claim 1, wherein in the mobile management entity of user equipment (UE) attachment Before MME failure, the method also includes:

3. the method according to claim 1, wherein the service MME is according to the acquisition of the mark of the UE The user information of UE specifically includes:

All MMEs of the service MME into the pond MME area send broadcast request message, wrap in the broadcast request message Mark containing the UE, user information of the broadcast message for UE described in request；

The service MME receives the broadcast response message of the backup MME of the MME of UE attachment, in the broadcast response message User information comprising the UE.

4. method according to claim 1-3, which is characterized in that the MME that services is according to the mark of the UE Before the user information for obtaining the UE, this method further include:

The service MME determines that the service MME is the MME hair when UE attachment according to the mark of the UE MME adhered to After raw failure, the MME of service is provided for the UE.

5. according to the method described in claim 4, it is characterized in that, the MME that services is according to the mark of the UE MME adhered to Know, determines that the service MME is specifically to wrap after the MME of UE attachment breaks down for the UE MME for providing service It includes:

It is described service MME by judgement be pre-configured MME mark in comprising the UE attachment MME mark, determine described in When servicing MME after the MME of UE attachment breaks down, the MME of service is provided for the UE.

6. according to claim 1-3,5 described in any item methods, which is characterized in that if Home Subscriber register HSS passes through road It is connected by agent node DRA with the MME of the service MME and UE attachment, then the network element is the DRA；If the HSS Directly it is connected with the MME of the service MME and UE attachment, then the network element is the HSS.

7. according to claim 1-3,5 described in any item methods, which is characterized in that the query response message also includes described The mark of the MME of UE attachment.

8. a kind of method of business disaster tolerance, which is characterized in that this method comprises:

Network element obtains first path set and the second set of paths corresponding to the mark of purpose mobile management entity MME, wherein A paths, the road in the first path set are respectively included at least in the first path set and second set of paths Diameter is that the path from the network element to the path of the purpose MME, in second set of paths is from the network element to service The path of MME, the service MME are after the purpose MME breaks down, and the user to be attached on the purpose MME sets Standby UE provides the MME of service, and the path in the first path set is without the service MME, second set of paths In path be located at same Chi Qu without the purpose MME, the service MME and the purpose MME；

The network element sends inquiry request message by the path in the first path set, and the inquiry request message is used for Information corresponding to the business of UE described in the MME request adhered to the UE, comprising described in the inquiry request message The MME of the mark of the MME of UE attachment and the mark of the UE, the UE attachment is the purpose MME；

After the network element sends the inquiry request message failure by all paths in the first path set, institute It states network element and the inquiry request message is sent by the path in second set of paths；

The network element receives the query response message that the service MME is sent, and includes the UE's in the query response message Information corresponding to business.

9. according to the method described in claim 8, it is characterized in that, if Home Subscriber register HSS passes through route agent's node DRA is connected with the MME of the service MME and UE attachment, then the network element is the DRA；If the HSS directly with it is described Service MME is connected with the UE MME adhered to, then the network element is the HSS.

10. a kind of service mobility management entity MME, which is characterized in that the service MME includes: receiving unit, acquiring unit, Determination unit and transmission unit；

The receiving unit, for receiving looking into for network element transmission after the mobile management entity MME failure that user equipment (UE) adheres to Request message is ask, the inquiry request message is used for corresponding to the business of UE described in the MME request adhered to the UE Information, the inquiry request message include the mark of the MME of UE attachment and the mark of the UE, the MME of the UE attachment It is located in the area of the same pond MME with the service MME；

The transmission unit includes the UE in the query response message for sending query response message to the network element Business corresponding to information.

11. service MME according to claim 10, which is characterized in that the receiving unit is also used to: it is attached to receive the UE The user information of the UE that sends of MME and the mark of the UE and record the user information of the UE and the mark of the UE The corresponding relationship of knowledge；

The acquiring unit is specifically used for: according to the mark of the UE, obtaining the user's letter for the UE that the service MME is saved Breath.

12. service MME according to claim 10, which is characterized in that the transmission unit is also used to:

All MME into the pond MME area send broadcast request message, include the mark of the UE in the broadcast request message Know, user information of the broadcast message for UE described in request；

The receiving unit is also used to: receiving the broadcast response message of the backup MME of the MME of the UE attachment, the broadcast is rung Answer the user information in message comprising the UE.

13. the described in any item service MME of 0-12 according to claim 1, which is characterized in that the determination unit is also used to:

According to the mark of the MME of UE attachment, determine that the service MME is to be after the MME of UE attachment breaks down The UE provides the MME of service.

14. service MME according to claim 13, which is characterized in that the determination unit is specifically used for: pre- by judging The mark of MME comprising UE attachment in the mark of the MME of configuration, determines the MME adhered to when the service MME as the UE After breaking down, the MME of service is provided for the UE.

15. 0-12 according to claim 1,14 described in any item service MME, which is characterized in that if Home Subscriber register HSS It is connected by route agent node DRA with the MME of the service MME and UE attachment, then the network element is the DRA；If The HSS is directly connected with the MME of the service MME and UE attachment, then the network element is the HSS.

16. 0-12 according to claim 1, service MME described in any one of 14, which is characterized in that the inquiry response disappears The mark of MME of the breath also comprising UE attachment.

17. a kind of network element, which is characterized in that the network element includes: acquiring unit, transmission unit and receiving unit；

The acquiring unit, for obtaining first path set and second corresponding to the mark of purpose mobile management entity MME Set of paths, wherein in the first path set and second set of paths respectively include at least a paths, described first Path in set of paths be the path from the network element to the path of the purpose MME, in second set of paths be from For the network element to the path of service MME, the service MME is after the purpose MME breaks down, to be attached to the purpose User equipment (UE) on MME provides the MME of service, and the path in the first path set is described without the service MME Path in second set of paths is located at same Chi Qu without the purpose MME, the service MME and the purpose MME；

The transmission unit, for sending inquiry request message by the path in the first path set, the inquiry is asked Ask information corresponding to the business of UE described in MME request of the message for adhering to the UE, the inquiry request message In the mark of the MME comprising UE attachment and the mark of the UE, the MME of UE attachment is the purpose MME；

The transmission unit is also used to: being passed through described in all paths transmission in the first path set in the transmission unit After inquiry request message failure, the inquiry request message is sent by the path in second set of paths；

The receiving unit, the query response message sent for receiving the service MME include in the query response message Information corresponding to the business of the UE.

18. network element according to claim 17, which is characterized in that if Home Subscriber register HSS is saved by route agent Point DRA is connected with the MME of the service MME and UE attachment, then the network element is the DRA；If the HSS is directly and institute It states service MME to be connected with the UE MME adhered to, then the network element is the HSS.

19. a kind of communication system, which is characterized in that the communication system is included at least if claim 10 is into claim 16 Described in any item service MME, and the network element as described in claim 17 or claim 18.