CN102318384A

CN102318384A - Method, network device and network system for processing failure of mobility management network element

Info

Publication number: CN102318384A
Application number: CN2010800019084A
Authority: CN
Inventors: 陈中平; 吴问付
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-09-03
Filing date: 2010-09-03
Publication date: 2012-01-11
Also published as: WO2011110013A1

Abstract

A method for processing a failure of a Mobility Management Network Element (MMNE) includes: determining that a failure occurs in the MMNE; when determining that the values of the bearer attribute parameters of the UE served by the failed MMNE match with the values of the bearer parameters needing to be retained, which are set in a bearer processing policy, in the moment of a failure occurred in the MMNE, retaining the bearers of the UE, wherein the bearer parameters needing to be retained, which are set in the bearer processing policy, in the moment of a failure occurred in the MMNE, correspond to the bearer attribute parameters of the UE. When a failure occurs in a MMNE, using the technical solution provided by the present invention can retain the bearers of the UE, and enables the UE to perform corresponding services.

Description

METHOD, NETWORK DEVICE AND NETWORK SYSTEM FOR PROCESSING FAILURE OF MOBILITY MANAGEMENT NETWORK ELEMENT

Processing method, the network equipment and the network system technical field of mobile management network element failure

The present invention relates to communication technical field, more particularly to a kind of processing method, the network equipment and the network system of mobile management network element failure.

Background technology

In order to tackle the challenge of wireless broad band technology, the leading superiority of 3GPP networks is kept, the Long Term Evolution plan of mobile communications network has been formulated（LTE, Long Term Evolution )₀Give a definition in the guidance of the evolution plan framework of new mobile communications network, the framework is more flat than present 2G, 3G network, and only remains packet domain（PS), therefore it is properly termed as the 3GPP packet-switched domains of evolution（The GPP Packet Switched Domain of Evolved 3), the also referred to as grouping system of evolution（ EPS, evolved packet system ).

EPS can be by the UMTS Terrestrial radio access network of evolution（Evolved UMTS Territorial Radio Access Network, E-UTRAN) IP connections are provided；EPS core net mainly includes mobility management entity (Mobile Management Entity, MME), gateway（Serving Gateway, S-GW), grouped data network gateway（Packet Data Network Gateway, P-GW) three logical functionalities, wherein, MME is responsible for Non-Access Stratum（Non Access, NAS) function such as signaling encryption and roaming, tracking, distributing user temporary identifications, security function etc..S-GW is responsible for mobility anchor point and packet route and forwarding inside local mobility anchor point and 3GPP system etc.；P-GW is then responsible for UE IP address distribution and charging, strategy execution etc..

When MME failures, for example, MME is restarted（When RESTART), eNodeB and S-GW perceive MME and restarted, and will discharge the carrying for the UE that this MME is serviced, cause the UE that MME is serviced to carry out any business.

The content of the invention

The embodiment of the present invention provides a kind of processing method, the network equipment and the network system of mobility management entity failure, in mobile management network element failure, retains UE carrying, UE is carried out corresponding business.

In view of this, the embodiment of the present invention is provided：

A kind of processing method of mobile management network element failure, including：

Determine mobile management network element failure；

Determine the carrying for the UE that the mobile management network element of the failure is serviced property parameters value with During the value matching of the parameter for the carrying that need to retain during the mobile management network element failure set in carrying processing strategy, retain the carrying of the UE, the parameter of the carrying that need to retain during the mobile management network element failure set in the carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE.

When the value of the parameter for the carrying that mobile management network element need to retain when determining the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy is matched, configured information is sent to access network element or gateway, so that it is corresponding parameter that the access network element or gateway retain the parameter of the carrying that need to retain during the mobile management network element failure set in the carrying of the UE, the carrying processing strategy in the mobile management network element failure with the property parameters of the carrying of the UE according to the configured information.

Mobile management network element UE priority, it is determined that needing to retain whole carryings of the UE when the mobile management network element failure；

The mobile management network element sends configured information to access network element or gateway, is carried so that the access network element or gateway retain the whole of the UE in the mobile management network element failure according to the configured information.

A kind of network element device, including：

Failure determining unit, for determine mobile management network element whether failure；

Carry determining unit, for when the determination result of failure determining unit is is, determine whether the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of failure is serviced is tactful with carrying processing matches, the parameter for carrying the carrying that need to retain during the mobile management network element failure set in processing strategy is corresponding parameter with the property parameters of the carrying of the UE；

Processing unit is carried, for when carrying the determination result of determining unit to be, retaining the carrying of the UE.

A kind of mobile management network element, including：

Determining unit, whether the value of the parameter for the carrying that the value for the property parameters for the carrying for determining UE need to retain when handling the mobile management network element failure set in strategy with carrying matches, the parameter for carrying the carrying that need to retain during the mobile management network element failure set in processing strategy and the UE carrying Property parameters are corresponding parameters；

Transmitting element, for the determination result in determining unit for when being, configured information is sent to access network element or gateway, so that the access network element or gateway retain the carrying of the UE in the mobile management network element failure according to the configured information.

A kind of mobile management network element, including：

Determining unit, for the priority according to UE, it is determined that whether needing to retain whole carryings of the UE when the mobile management network element failure；

Transmitting element, for the determination result in determining unit for when being, configured information is sent to access network element or gateway, is carried so that the access network element or gateway retain the whole of the UE in the mobile management network element failure according to the configured information.

A kind of network system, including：Mobile management network element, access network element and gateway, wherein, mobile management network element, when the value of the parameter for the carrying that value for the property parameters for the carrying for determining UE need to retain when handling the mobile management network element failure set in strategy with carrying is matched, configured information is sent to access network element or gateway, so that the access network element or gateway retain the carrying of the UE in the mobile management network element failure according to the configured information, the parameter for the carrying that need to retain during the mobile management network element failure set in the carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE；

Access network element, for receiving the configured information, in the mobile management network element failure, the carrying of the UE is retained according to the configured information；

Gateway, for receiving the configured information, in the mobile management network element failure, the carrying of the UE is retained according to the configured information.

A kind of network system, including：Mobile management network element, access network element and gateway, wherein, mobile management network element, for UE priority, it is determined that needing to retain whole carryings of the UE when the mobile management network element failure；Configured information is sent to access network element and gateway, is carried so that the access network element or gateway retain the whole of the UE in the mobile management network element failure according to the configured information；

Access network element, for receiving the configured information, when the mobile management network element failure, retains the whole of the UE according to the configured information and carries；

Gateway, for receiving the configured information, when the mobile management network element failure, according to The configured information retains whole carryings of the UE.

A kind of network system, including：Mobile management network element, access network element and gateway, wherein, access network element, for when mobile management network element breaks down, when determining that the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced is tactful with carrying processing is matched, retain the carrying of the UE；Gateway, for when mobile management network element breaks down, when determining that the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced is tactful with carrying processing is matched, retain the carrying of the UE；The parameter for the carrying that need to retain during the mobile management network element failure set in wherein described carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE.

One embodiment of the invention sets whether the value of the parameter of the carrying of reservation matches to determine the carrying for needing to retain in mobile management network element failure by the value for determining the property parameters of UE carrying in tactful with carrying processing, so when mobile management network element failure, the UE can also carry out business corresponding with the carrying retained, improve the experience of user.

Mobile management network element just determines the whole carryings for retaining the UE whether are needed in mobile management network element failure according to some UE priority in another embodiment of the present invention, and notify access network element or gateway, make access network element or gateway the meeting member-retaining portion UE in mobile management network element failure whole carryings, can cause the UE of high priority can also carry out business in mobile management network element failure.Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in embodiment will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is 3GPP network architecture diagrams；

Fig. 2 is the processing method for the mobile management network element failure that one embodiment of the invention is provided；

Fig. 3 is the processing method for the mobile management network element failure that another embodiment of the present invention is provided；Fig. 4 is the processing method for the mobile management network element failure that further embodiment of this invention is provided；Fig. 5 is the processing method that UE provided in an embodiment of the present invention is restarted by MME during E-UTRAN core network access； Fig. 6 is the processing method that UE provided in an embodiment of the present invention is restarted by SGSN during UTRAN core network access；

Fig. 7 is a kind of processing network equipment infrastructure figure of mobile management network element failure provided in an embodiment of the present invention；

Fig. 8 is a kind of mobile management network element structure chart provided in an embodiment of the present invention；

Fig. 9 is another mobile management network element structure chart provided in an embodiment of the present invention；

Figure 10 is a kind of network architecture figure provided in an embodiment of the present invention；

Figure 11 is another network architecture figure provided in an embodiment of the present invention；

Figure 12 is another network architecture figure provided in an embodiment of the present invention.

Embodiment

Refering to Fig. 1, in order that the technical scheme of subsequent descriptions of the embodiment of the present invention is more clearly understood, first the network architecture that the embodiment of the present invention is applicable is briefly described：The 3GPP network architectures as shown in Figure 1, UE can be by the UMTS Terrestrial radio access network of evolution（Evolved UMTS Territorial Radio Access Network, E-UTRAN) connection core network, UMTS Terrestrial radio access network can also be passed through（UMTS Terrestrial Radio Access Network, UTRAN) connection core network, or pass through enhanced data rates for gsm evolution wireless access network（GSM EDGE Radio Access Network, GERAN) connection core network；Wherein, E-UTRAN access networks include evolution base station eNodeB；UTRAN or GERAN access networks include radio network controller（ Radio Network Controller, RNC );When UE is accessed from E-UTRAN, core net includes MME, S-GW and P-GW;When UE is accessed from UTRAN or GERAN, core net includes Serving GPRS Support Node（Serving GPRS Support Node, SGSN), S-GW and P-GW;Interface in 3GPP network structures between each network element is connected referring specifically to shown in Fig. 1, will not be repeated here.It should be noted that, the network architecture shown in Fig. 1 is only a kind of network architecture that technical solution of the present invention is applicable, and it will be understood by those skilled in the art that technical scheme provided by the present invention can be applicable to other network architectures, such as non-3 GPP network framework.

Refering to Fig. 2, the embodiment of the present invention provides a kind of processing method of mobile management network element failure, and the executive agent of each step of this method can be access network element or S-GW, specifically, when UE is accessed by E-UTRAN, access network element is eNodeB;When UE is accessed by UTRAN, access network element is RNC.This method description is it is determined that during mobile management network element failure, how access network element or gateway are determined to retain carrying or releasing bearing, and this method is specifically included： 201st, determine that mobile management network element breaks down.

Wherein, mobile management network element is MME or SGSN in the present embodiment.

Wherein, specifically, when executive agent is S-GW, restarting counting restart counter to determine whether mobile management network element breaks down in probe response Echo Response message that can be by detecting mobile management network element transmission；When executive agent is access network element, access network element can determine whether mobile management network element breaks down by detecting whether to receive the Reset message of mobile management network element transmission, for details, reference can be made to the detailed description of subsequent embodiment.

Wherein, mobile management network element failure can refer to mobile management network element and restart or other failures.

When the 202nd, determining that the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced is tactful with carrying processing is matched, retain the carrying of the UE；Or, when determining that the value of the parameter for the carrying that need to retain when the value of the property parameters of the carrying for the UE that the mobile management network element of failure is serviced handles the mobile management network element failure set in strategy with carrying is mismatched, then discharge the carrying of the UE, wherein, the parameter for the carrying that need to retain during mobile management network element failure in carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE.

Specifically, determining the quality of service type mark of the carrying for the UE that the mobile management network element of failure is serviced（QoS Class Identifier, QCI), distribute and retain priority (Allocation and Retention Priority, A P), whether the value of the parameter of carrying that need to retain matches when the value of at least one parameter is with the mobile management network element failure set in carrying processing strategy in APN (Access Point Name, APN).

Specifically, can such as include QCI, A P or APN in carrying processing strategy, such as QCI is equal to 5, A P and is more than or equal to 8 and less than or equal to 10, or APN is more than 12;Then when mobile management network element failure, the property parameters of the UE serviced of the mobile management network element of failure carrying are determined, retain the carrying if QCI is equal to 5, do not retain the carrying etc. if A P are equal to 20.

At least two in QCI, ARP and APN can such as be included in carrying processing strategy, such as QCI is equal to 5, A P and is more than or equal to 8 and less than or equal to 10, and APN be more than in 12 at least two；Then when mobile management network element failure, determine the property parameters of the UE serviced of the mobile management network element of failure carrying, as when QCI, which is equal to 5 and A P, is equal to 8, then retain the carrying, if the property parameters of UE carrying, such as when A P are equal to 9, APN equal to 9, the carrying is then deleted, if the category of UE carrying Property parameter, such as QCI be equal to 5, A P be equal to 9 and APN be equal to 13 when, then retain the carrying etc..In embodiments of the present invention, the parameter for the carrying that need to retain during mobile management network element failure in carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE, specifically：

If the parameter for carrying the carrying that need to retain during the mobile management network element failure in policing parameter is QCI, whether the QCI in the property parameters for the carrying for comparing UE is matching；Or

It is if carrying the parameter for the carrying that need to retain during the mobile management network element failure in policing parameter

During RAP and APN, then whether RAP and APN in the property parameters for the carrying for comparing UE matching, etc..

Wherein, the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced is equal to the value that the carrying handles the parameter for the carrying that need to retain during the mobile management network element failure set in strategy；Or

Within the span of the parameter for the carrying that the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced need to retain when the carrying handles the mobile management network element failure set in strategy.

Because in the prior art, mobility management entity, which is restarted, will cause access network element to discharge the RRC connections between UE, and then the service disconnection for causing UE to be carrying out.Restart because UE can not perceive mobility management entity, so can initiate to re-establish the flow of connection, business is connected and recovers to attempt to re-establish with network side, for example, sending service request Service Request message to the mobility management entity restarted.The mobility management entity restarted then returns to refuse information due to having lost UE contexts to UE, so, and UE can be caused to carry out business for a long time.In order to avoid UE can not carry out business for a long time, this method can also include：When the condition of predetermined release UE connections is met, sent a notification message to UE, the notification message is used to indicate that UE initiates attachment flow.Wherein, the time that the condition of predetermined release UE connections can remain static for UE reaches scheduled duration, such as UE remains static for a long time（For example, UE does not carry out data transmission for a long time）The time that such as UE remains static reaches the time of the static timer settings of " UE inactivity timer " UE, above-mentioned notification message is then then sent in the static timer expiries of " UE inactivity timer " UE, specific scheduled duration can be set by access network element；Causing UE to be moved to outside the access network element compass of competency due to the network coverage, so cause the access network element can not continue as UE and service etc. is provided.Specifically, the notification message can ask for Connection Release Seek message（Such as, wireless heterogeneous networks Connection Release RRC Connection Release message）, carry in the connection release request message for indicating that UE initiates the configured information of attachment flow.

Whether the value of the parameter for the carrying that need to retain during the mobile management network element failure that the embodiment of the present invention is set by the value for determining the property parameters of UE carrying in tactful with carrying processing matches to determine to determine the carrying that needs retain in mobile management network element failure, so when mobile management network element failure, the UE can also carry out business corresponding with the carrying retained, improve the experience of user.

Refering to Fig. 3, the embodiment of the present invention provides a kind of processing method of mobile management network element failure, and this method describes mobile management network element and determines UE which carrying retained in its failure, and this method is specifically included：

Whether the value of the parameter for the carrying that need to retain when the 301st, mobile management network element determines the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy matches, wherein, the parameter for the carrying that need to retain during mobile management network element failure in carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE.

The step can be specifically：Determine whether the value of the parameter for the carrying that need to retain when the value of at least one parameter is with the mobile management network element failure set in carrying processing strategy in QCI, distribution and reservation priority A P, the APN APN of UE carrying matches.Where it is determined whether the method for matching is referred to the description in step 202.

302nd, when the value of the parameter for the carrying that need to retain when the mobile management network element failure set during the value of the property parameters of UE carrying is tactful with carrying processing is matched, mobile management network element sends configured information to access network element or gateway, so that the access network element or gateway retain the carrying of the UE in the mobile management network element failure according to the configured information.

Wherein, when UE is accessed by E-UTRAN, access network element is eNodeB;When UE is accessed by UTRAN, access network element is RNC.

Wherein, the scheme that the embodiment is provided can be performed when setting up UE some carrying, i.e. when setting up some carrying, judge whether the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters for the carrying currently set up is tactful with carrying processing matches, if it is, notifying access network element or server gateway to retain the carrying in mobile management network element failure.

Wherein, the mobile management network element determines that the value of the property parameters of UE carrying is equal to the value that the carrying handles the parameter for the carrying that need to retain during the mobile management network element failure set in strategy；Or The mobile management network element is determined within the span of parameter for the carrying that the value of the property parameters of UE carrying need to retain when the carrying handles the mobile management network element failure set in strategy.Whether the value of the parameter for the carrying that need to retain during the mobile management network element failure that mobile management network element is set by the value for determining the property parameters of UE carrying in tactful with carrying processing in the embodiment of the present invention matches to determine whether retain the carrying in mobile management network element failure, and notify access network element or gateway, access network element or gateway is set to retain UE part carrying in mobile management network element failure, rather than all discharge carryings all UE, so, the UE is set to carry out business corresponding with the carrying retained, improve the experience of user.

Refering to Fig. 4, the embodiment of the present invention provides a kind of processing method of mobile management network element failure, and party's carrying, this method is specifically included：

401st, mobile management network element UE priority, it is determined that whether needing to retain whole carryings of the UE when the mobile management network element failure.

In embodiments of the present invention, operator can set user of some VIP users as high priority, then in mobile management failure, can preferentially retain whole carryings of these VIP users；And for example, it is Gold Subscriber that a certain UE can be set in subscription data, then the Gold Subscriber is the user of high priority, then when mobile management network element failure, can preferentially retain whole carryings of these Gold Subscriber.

When the whole carryings for retaining the UE the 402nd, are needed when the mobile management network element failure, configured information is sent to access network element or gateway, is carried so that the access network element or gateway retain the whole of the UE in the mobile management network element failure according to the configured information.

Wherein, the scheme that the embodiment is provided can be performed when setting up UE carrying, i.e. when setting up carrying, according to the priority of UE in the priority of UE in signing information or carrying processing strategy, it is determined that whether needing to retain UE whole carryings when mobile management network element failure, if it is, notifying access network element or server gateway to retain whole carryings of the UE in mobile management network element failure.

The embodiment of the present invention determined according to some UE priority in mobile management network element failure whether The whole for retaining the UE is needed to carry, and notify access network element or gateway, make access network element or gateway the meeting member-retaining portion UE in mobile management network element failure whole carryings, rather than all discharge all UE whole carryings, can so cause the UE of high priority can also carry out business in mobile management network element failure.

Fig. 5 shows a kind of processing method of mobile management network element failure provided in an embodiment of the present invention, and the scene of embodiment description is that UE is accessed by E-UTRAN, and UE is in connection status and carries out Packet Service.When MME is restarted, S-GW and eNodeB can continue to retain carrying, and then maintain data transfer.Further, when RRC Connection Releases, eNodeB can notify UE to perform attachment flow so that network can rebuild UE context for UE, and this method is specifically included：

501st, S-GW and eNodeB know that MME is restarted, and determine that the MME restarts what is influenceed

UE。

Specifically, S-GW can send Echo request message to MME, and MME returns to carry in Echo Response message, message to S-GW restarts counting restart counter, when restart counter are 1, S-GW determines that MME is restarted；Or MME sends Echo Request message when restarting to S-GW, restart counter are carried in message, when restart counter are 1, S-GW determines that MME is restarted.S-GW can be determined as follows the MME and restart influenceed UE:The MME of UE services address information is included as in the UE contexts preserved by S-GW（It can be IP address）, when MME is restarted, S-GW just can determine that the MME is restarted and can had an impact to which UE by the MME address information and each UE context restarted.

MME is restarted, and sends Reset message to eNodeB, eNodeB receives the message and knows that MME is restarted.ENodeB can be determined as follows the MME and restart influenceed UE:When UE is in connected state, there is S1 connections between eNodeB and the MME for servicing the UE（That is the chain of command connection between E-UTRAN and MME）, when MME is restarted, the connections of the S1 between eNodeB and the MME for servicing the UE can be caused to be released, so eNodeB can determine that the MME is restarted and can had an impact to which UE.When UE is in Idle state, due to there is no S1 connections between eNodeB and UE, so eNodeB, which can not determine that MME is restarted, influences whether the UE.

502nd, S-GW and eNodeB retain the carrying of the UE.

The specific implementation that S-GW retains the carrying of the UE includes：

First way：S-GW handles the value of strategy and the property parameters of UE carrying according to carrying, really Determine UE needs which carrying retained.Specifically, whether the value of the parameter for the carrying that S-GW need to retain when judging the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy matches, if matching, then determine to retain the carrying, otherwise determine to discharge the carrying, specific carrying processing strategy can be pre-configured on S-GW, and carrying processing strategy can be the combination of one of following processing mode or following processing mode：

1) carrying that QCI is a certain specific value, other deleting load-bearing/releases are retained；

2) carrying that QCI belongs in a certain specific span, other deleting load-bearing/releases are retained；

3) carrying that A P are a certain specific value, other deleting load-bearing/releases are retained；

4) carrying that A P belong in a certain specific span, other deleting load-bearing/releases are retained；

5) the corresponding carryings of a certain specific APN, other deleting load-bearing/releases are retained；

Above-mentioned QCI, A P and APN can regard the property parameters of carrying as.Wherein, carrying processing strategy can also be other strategies that operator formulates, and the realization of the present invention is not influenceed.

The second way：MME handles the value of strategy and the property parameters of UE carrying according to carrying, determine which carrying for retaining UE is needed when MME breaks down, specifically, whether the value of the parameter for the carrying that MME need to retain when judging the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy matches, if matching, then determine to retain the carrying, otherwise determine to discharge the carrying, then S-GW is notified, wherein, carrying processing strategy can be the combination of one of following processing mode or following processing mode：

6) the corresponding carrying of a certain particular UE, other deleting load-bearing/releases are retained.

When setting up some carrying, MME can send Create Session Request and create conversation request message to S-GW, when MME needs to retain the carrying according to carrying processing strategy decision, configured information is then carried in the message, and the configured information is used to notify S-GW to retain the carrying when MME failures； MME The Create Bearer Response that configured information can also be carried by being sent to S-GW create bearing response message, notify S-GW to retain the carrying when MME failures.Certainly, MME can also send other message to S-GW and realize the purpose for notifying S-GW to retain the carrying currently set up.S-GW is received after configured information, and confirmation retains the carrying when MME failures, and preserves the configured information.So, the S-GW in this step can be according to the configured information of preservation, it is determined that needing that UE which carrying retained.

The third mode：Whether MME decision-makings retain UE whole carryings in MME failures, that is MME handles the priority of UE in strategy according to the priority or carrying of UE in signing information, judge that whether retaining the whole of the UE when MME failures carries, and then notifies S-GW.

Such as, when UE is high-priority users, it is determined that retaining whole carryings of the UE in MME failures, when UE is low priority user, it is determined that discharging whole carryings of the UE in MME failures.

Specifically, when setting up carrying, MME can send Create Session Request to S-GW and create conversation request message, when it is determined that retaining UE whole carryings, configured information is carried within the message, and the configured information indicates to retain whole carryings of the UE in MME failures.S-GW is received after configured information, confirms to retain UE whole carryings when MME failures, and preserves the configured information, so, and the S-GW in this step can be according to the configured information, it is determined that retaining UE whole carryings.

The specific implementation that eNodeB retains the carrying of the UE includes：

First way：ENodeB determines that UE needs the carrying retained according to the value of the property parameters of carrying processing strategy and UE carrying.Specifically, whether the value of the parameter for the carrying that eNodeB need to retain when judging the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy matches, if it does, then determining to retain the carrying, otherwise determine to discharge the carrying.Specific carrying processing strategy can be pre-configured on eNodeB or be obtained from MME.Specifically, carrying processing strategy can be the combination of one of following processing mode or following processing mode：

2) carrying that QCI belongs in a certain specific span, other deleting load-bearing/releases are retained；3) carrying that A P are a certain specific value, other deleting load-bearing/releases are retained；

Above-mentioned QCI, A P and APN can regard the property parameters of carrying as.Wherein, carrying processing strategy can also be other strategies that operator formulates, and the realization of the present invention is not influenceed. If carrying processing strategy is obtained from MME, eNodeB can obtain carrying processing strategy from MME in the following way：When eNodeB is initialized, carrying processing strategy is sent from MME to eNodeB, such as, MME sends SI SETUP RESPONSE message to eNodeB, wherein comprising carrying processing strategy, carrying processing strategy can certainly be sent using other message, the realization of the present invention is not influenceed.

The second way：MME handles the value of strategy and the property parameters of UE carrying according to carrying, determine which carrying for retaining UE needed when MME breaks down, specifically, whether the value of the parameter for the carrying that MME need to retain when judging the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy matches, if matching, then determine to retain the carrying, otherwise determine to discharge the carrying, then eNodeB is notified, wherein, carrying processing strategy can be identical with first way, will not be repeated here.

Specifically, when setting up some carrying, MME can set up request message to the eNodeB carryings for sending the carrying that correspondence is currently set up, when MME needs to retain the carrying according to carrying processing strategy decision, configured information is carried in the message, the configured information is represented when the MME failures, retains the carrying currently set up.ENodeB is received after the configured information, confirms to retain carrying when MME failures, and preserve the configured information.So, the eNodeB in this step 7 can be carried according to the configured information of preservation it is determined that needing to retain which of UE.

The third mode：Whether MME decision-makings retain UE whole carryings in MME failures, that is MME handles the priority of UE in strategy according to the priority or carrying of UE in signing information, judge that whether retaining the whole of the UE when MME failures carries, and then notifies eNodeB.

Specifically, when setting up carrying, MME can be sent in context request message, the context request message to eNodeB and carry configured information, and the configured information is represented when the mobility management entity failure, retain whole carryings of the UE.ENodeB is received after the configured information, confirms to retain UE whole carryings when MME failures, and preserves the configured information, and so, eNodeB can determine that the whole for retaining UE is carried according to the configured information in this step.

ENodeB and S-GW may retain UE part carrying in the step, it is assumed that what is currently retained is voice bearer, if eNodeB, S-GW are currently just in transmitting audio data, then eNodeB, S-GW can maintain to continue the transmitting audio data on the voice bearer, will not cause the Transmission of current speech data.If eNodeB, S-GW due to remaining voice bearer, are then used currently without transmitting audio data Family equipment can initiate again calling etc. operation, eNodeB, S-GW can on the voice bearer of reservation transmitting audio data.

503rd, it is optional, when the condition of predetermined release UE connections is met, eNodeB sent to UE the instruction carried in RRC Connection Release message, the message for indicating UE initiation attachment flows believe ' ＆.

Wherein, the time that the condition of predetermined release UE connections can remain static for UE reaches scheduled duration, such as UE remains static for a long time（For example, UE does not carry out data transmission for a long time）The time remained static reaches the time of the static timer settings of " UE inactivity timer " UE, above-mentioned RRC Connection Release message is then then sent in the static timer expiries of " UE inactivity timer " UE, specific scheduled duration can be set by eNodeB；Or；The condition of predetermined release UE carryings can not continue as UE for the eNodeB and provide service, for example, causing UE to be moved to outside eNodeB compasses of competency due to the network coverage, so causing the eNoedB can not continue as UE and providing service etc..

Specifically, RRC Connection Release message in the step can directly notify UE to initiate attachment flow, for example, increase value-" an Attach required " in original release cause " Release Cause " newly within the message), it is for indicating that UE initiates the configured information of attachment flow to be somebody's turn to do " Attach required "；Or, message informing UE is currently restarted for its MME for providing service, trigger UE and initiate attachment flow, for example, cell MME is carried in the message and restarts instruction " MME Restart Indication ", then it is for indicating that UE initiates the configured information of attachment flow to be somebody's turn to do " MME Restart Indication "；Or, its context of message informing UE is lost, and triggering UE initiates attachment flow, for example, cell context failure " UE Context Invalid " is carried within the message, then is somebody's turn to do " UE Context Invalid " to indicate that UE initiates the configured information of attachment flow.

The step is when the condition of predetermined release UE connections is met, eNodeB sends RRC Connection Release message to UE, UE is notified to initiate attachment flow in time, UE is set to avoid sending the unnecessary signaling for re-establishing connection, such as service request Service Request message etc., so, it is possible to reduce the break period of UE business, while the unnecessary flow for re-establishing connection can also be saved.

504th, optional, UE is received after RRC Connection Release message, according to the configured information for indicating that UE initiates attachment flow is used in message, initiates attachment flow.

Specifically, can be according to the value-" Attach increased newly in release cause in message " Release Cause " Required ", directly initiates attachment flow；Or, the cell " MME Restart Indication " in message knows that oneself registered MME has been restarted, and initiates attachment flow；Or, according to cell in message " UE Context Invalid ", know that UE context is unavailable, initiate attachment flow.

The embodiment of the present invention is when MME is restarted, retain the carrying that the MME services UE, and then UE is carried out related service, when follow-up eNodeB is to UE transmission RRC Connection Release message, carried in connection release request for indicating that UE initiates the configured information of attachment flow, UE initiates attachment flow according to configured information, network side is set to rebuild context for UE, UE can be so set to avoid sending the unnecessary signaling for re-establishing connection, such as service request Service Request message etc., the break period of UE business can be reduced, the unnecessary flow for re-establishing connection can also be saved simultaneously.

Fig. 6 shows the processing method that another mobile management network element provided in an embodiment of the present invention is restarted, and the scene of embodiment description is that UE is accessed by UTRAN, and UE is in connection status and carries out Packet Service.When SGSN is restarted, S-GW and RNC can continue to retain carrying, and then maintain data transfer.Further, when RRC Connection Releases, RNC can notify UE to perform attachment flow so that network can rebuild UE context for UE, and this method is specifically included：

601st, S-GW and RNC know that SGSN is restarted, and determine that the SGSN restarts influenceed UE.Specifically, S-GW can send Echo request message to SGSN, and SGSN returns to carry in Echo Response message, message to S-GW restarts counting restart counter, when restart counter are 1, S-GW determines that SGSN is restarted；Or SGSN sends Echo Request message when restarting to S-GW, restart counter are carried in message, when restart counter are 1, S-GW determines that SGSN is restarted.S-GW can be determined as follows the SGSN and restart influenceed UE:Because S-GW is when SGSN is restarted, S-GW just can determine that the SGSN is restarted and can had an impact to which UE by the SGSN address information and each UE context restarted.

SGSN is restarted, and sends Reset message to RNC, RNC receives the message and knows that SGSN is restarted.RNC can be determined as follows the SGSN and restart influenceed UE:When UE is in connected state, there is Iu-PS connections between RNC and the SGSN for servicing the UE（That is the chain of command connection between UTRAN and SGSN）, when SGSN is restarted, Iu-PS connections can be caused to be released, so RNC can determine that the SGSN is restarted and can had an impact to which UE.

602nd, S-GW and RNC retain the carrying of the UE. The specific implementation that S-GW retains the carrying of the UE includes：

First way：It is identical with the description below previous embodiment step 502, no longer praise state herein.The second way：SGSN handles the value of strategy and the property parameters of UE carrying according to carrying, determine which carrying for retaining UE is needed when SGSN breaks down, specifically, whether the value of the parameter for the carrying that SGSN need to retain when judging the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy matches, if matching, then determine to retain the carrying, otherwise determine to discharge the carrying, then S-GW is notified, specifically, carrying processing strategy is identical with the carrying processing strategy in the second way in above-described embodiment, it will not be repeated here.

Specifically, when setting up carrying, SGSN can send Create Session Request and create conversation request message to S-GW, when SGSN needs to retain the carrying according to carrying processing strategy decision, configured information is then carried in the message, and the configured information is used to notify S-GW to retain the carrying when SGSN failures；The Create Bearer Response that SGSN can also carry configured information by being sent to S-GW create bearing response message, notify S-GW to retain the carrying when SGSN failures.Certainly, SGSN can also send other message to S-GW and realize the purpose for notifying S-GW to retain the carrying currently set up.S-GW is received after the configured information, confirms to retain carrying when SGSN failures, and preserve the configured information.So, the S-GW in this step can according to the configured information of preservation, it is determined that need to retain UE which carry.

The third mode：Whether SGSN decision-makings retain UE whole carryings in SGSN failures, that is SGSN handles the priority of UE in strategy according to the priority or carrying of UE in signing information, judge that whether retaining the whole of the UE when SGSN failures carries, and then notifies S-GW.

Such as, when UE is high-priority users, it is determined that retaining whole carryings of the UE in SGSN failures, when UE is low priority user, it is determined that discharging whole carryings of the UE in SGSN failures.

Specifically, when setting up carrying, SGSN can send Create Session Request to S-GW and create conversation request message, when it is determined that retaining UE whole carryings, configured information is carried within the message, and the configured information indicates to retain whole carryings of the UE in SGSN failures.S-GW is received after the configured information, confirms to retain UE whole carryings when SGSN failures, and preserves the configured information, so, and the S-GW in this step can be according to the configured information, it is determined that the whole for retaining UE is carried.

The specific implementation that RNC retains the carrying of the UE includes：

First way：RNC handles the value of strategy and the property parameters of UE carrying according to carrying, determine that UE needs the carrying retained.Specific carrying processing strategy can be pre-configured on RNC Either obtained from SGSN.The tactful strategy described under the specific implementation first way of the carrying of the UE that retains with eNodeB in above-described embodiment step 502 of specific processing therein is identical, will not be repeated here.

If carrying processing strategy is obtained from SGSN, RNC can obtain carrying processing strategy from SGSN in the following way：When RNC is initialized, carrying processing strategy is sent from SGSN to RNC, such as, SGSN sends Iu SETUP RESPONSE message to RNC, wherein comprising carrying processing strategy, naturally it is also possible to send carrying processing strategy using other message, the realization of the present invention is not influenceed.

The second way：SGSN determines which carrying for retaining UE needed when SGSN breaks down according to the value of the property parameters of carrying processing strategy and UE carrying, specifically, carrying processing strategy is identical with the carrying processing strategy described under the second way in the specific implementation of the lower RNC of step 502 in above-described embodiment carryings for retaining the UE, no longer praises state herein.

Specifically, when setting up some carrying, SGSN can set up request message to the RNC carryings for sending the carrying that correspondence is currently set up, when SGSN needs to retain the carrying according to carrying processing strategy decision, configured information is carried in the message, the configured information is represented when the SGSN failures, retains the carrying currently set up.RNC is received after configured information, confirms to retain carrying when SGSN failures, and preserve the configured information.So, the RNC in this step can be according to the configured information of preservation, it is determined that needing to retain which of UE₇| carry.

The third mode：Whether SGSN decision-makings retain UE whole carryings in SGSN failures, that is SGSN handles the priority of UE in strategy according to the priority or carrying of UE in signing information, judge that whether retaining the whole of the UE when SGSN failures carries, and then notifies RNC.

Specifically, when setting up carrying, SGSN is sent in context request message, the context request message to RNC and carries configured information, and the configured information is represented when the mobility management entity failure, retain whole carryings of the UE.RNC is received after configured information, confirms to retain UE whole carryings when SGSN failures, and preserves configured information, and so, RNC can determine that the whole for retaining UE is carried according to configured information in this step.

RNC and S-GW may retain UE part carrying in the step, it is assumed that what is currently retained is voice bearer, if RNC and S-GW is current just in transmitting audio data, then RNC and S-GW can maintain to continue the transmitting audio data on the voice bearer, will not cause the Transmission of current speech data.If RNC and S-GW is currently without transmitting audio data, due to remaining voice bearer, then terminal can be again Initiate the operation such as calling, RNC and S-GW can on the voice bearer of reservation transmitting audio data.

603rd, it is optional, when the condition of predetermined release UE connections is met, RNC sends RRC Connection Release message to UE, the instruction for indicating UE initiation attachment flows is carried in the message and believes the step when the condition of predetermined release UE connections is met, RNC sends RRC to UE

Connection Release message, UE is notified to initiate attachment flow, UE is set to avoid sending the unnecessary signaling for re-establishing connection, such as service request Service Request message etc., so, the break period of UE business can be reduced, while the unnecessary flow for re-establishing connection can also be saved.

Wherein, the specific implementation of the step is no longer praised state herein referring to the associated description of step 503.604th, optional, UE is received after RRC Connection Release message, according to the configured information for indicating that UE initiates attachment flow is used in message, initiates attachment flow.

Wherein, the specific implementation of the step is no longer praised state herein referring to the associated description of step 504.The embodiment of the present invention is when SGSN is restarted, retain the carrying that the SGSN services UE, and then UE is carried out related service, when follow-up RNC is to UE transmission RRC Connection Release message, carried in connection release request for indicating that UE initiates the configured information of attachment flow, UE initiates attachment flow according to configured information, network side is set to rebuild context for UE, UE can be so set to avoid sending the unnecessary signaling for re-establishing connection, such as service request Service Request message etc., the break period of UE business can be reduced, the unnecessary flow for re-establishing connection can also be saved simultaneously.

Refering to Fig. 7, the embodiment of the present invention provides a kind of network equipment, and the network equipment can be access network element or S-GW, and the network equipment is specifically included：

Failure determining unit 701, for determine mobile management network element whether failure；When the network equipment is S-GW, specifically can by detect mobile management network element send Echo Response message in restart counter determine mobile management network element whether failure；When the network equipment is access network element, can specifically be determined by detecting whether to receive Reset message that mobile management network element sends mobile management network element whether failure, for details, reference can be made to the detailed description of embodiment of the method appropriate section.

Carry determining unit 702, for when the determination result of failure determining unit 701 is is, whether the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of failure judgement is serviced is tactful with carrying processing to match；Specifically, may determine that in QCI, A P, APN of UE carrying the value of at least one parameter with carrying processing strategy Whether the value of the parameter for the carrying that need to retain during the mobile management network element failure of setting matches；Wherein, the specific corresponding description that may refer in above-mentioned two embodiment of the method for carrying processing strategy, no longer praises state herein.

Processing unit 703 is carried, for when carrying the determination result of determining unit 702 to be, retaining the carrying of the UE；When the determination result for carrying determining unit 702 is no, the carrying of the UE is discharged.

Carrying processing unit 703 is additionally operable to when the condition of predetermined release UE connections is met, and discharges retained UE carrying, and in order to when the condition of predetermined release UE connections is met, notify UE to initiate attachment flow immediately, the network equipment also includes：Transmitting element 704, for when the condition of predetermined release UE connections is met, being sent a notification message to UE, the notification message is used to indicate that UE initiates attachment flow.Wherein, the condition of the predetermined release UE connections is the time that UE remains static to reach scheduled duration, or, access network element can not continue as UE and provide service；The notification message sent to UE can be specifically to carry to be used for the releasing request message for indicating the configured information that UE initiates attachment flow.

The embodiment of the present invention is in mobile management network element failure, whether the value of the parameter for the carrying that need to retain during the mobile management network element failure set by the value of the property parameters for the carrying for judging UE in tactful with carrying processing matches to determine whether retain the carrying in mobile management network element failure, rather than all delete carryings all UE, so, when mobile management network element failure, the UE can also carry out business corresponding with the carrying retained, improve the experience of user；Further, when the condition of predetermined release UE connections is met, sent a notification message to UE, UE is notified to initiate attachment flow in time, UE is avoided sending the unnecessary signaling for re-establishing connection, such as service request Service Request message etc., so, the break period of UE business can be reduced, while the unnecessary flow for re-establishing connection can also be saved.

Refering to Fig. 8, the embodiment of the present invention provides a kind of mobile management network element, and the mobile management network element can be SGSN or MME, and it is specifically included：

Whether determining unit 801, the value of the parameter for the carrying that need to retain when the value of the property parameters of the carrying for determining UE is with the mobile management network element failure set in carrying processing strategy matches；Specifically, whether the value for determining the QCI of UE carrying, distribution and retaining the parameter for the carrying that need to retain when the value of at least one parameter handles the mobile management network element failure set in strategy with carrying in priority A P, APN APN matches；Wherein, the specific corresponding description that may refer in above-mentioned two embodiment of the method for carrying processing strategy, no longer praises state herein.

Transmitting element 802, for when the determination result of determining unit 801 is to be, configured information being sent to access network element or gateway, so that the access network element or gateway are in the mobile management network element failure When retain the carrying of the UE according to the configured information.When the determination result of determining unit 801 is no, configured information can not be sent to access network element or gateway, the configured information for the carrying for indicating to delete the UE in the mobile management network element failure can also be sent to access network element or gateway.

Wherein, in another embodiment of the presently claimed invention, determining unit 801, for determining whether the value for the property parameters that UE ^ is carried is equal to the value of the parameter for the carrying that need to retain when the carrying handles the mobile management network element failure set in strategy；Or

Determining unit 801, whether the value of the property parameters of the carrying for determining UE is within the span of the parameter for the carrying that need to retain when the carrying handles the mobile management network element failure set in strategy

Whether the value of the parameter for the carrying that need to retain during the mobile management network element failure that mobile management network element is set by the value for judging the property parameters of UE carrying in tactful with carrying processing in the embodiment of the present invention matches to determine to determine the carrying that needs retain in mobile management network element failure, and notify access network element and gateway, rather than all discharge carryings all UE in mobile management gateway failure, so, when mobile management network element failure, the UE can also carry out business corresponding with the carrying retained, improve the experience of user.

Refering to Fig. 9, the embodiment of the present invention provides a kind of mobile management network element, and the mobile management network element can be SGSN or MME, and it is specifically included：

Determining unit 901, for the priority according to UE, it is determined that whether needing to retain whole carryings of the UE when the mobile management network element failure；Specifically, the priority of UE in strategy can be handled according to the priority or carrying of UE in signing information, it is determined that whether needing to retain whole loads of the UE when the mobile management network element failure；

Transmitting element 902, for the determination result in determining unit 901 for when being, configured information is sent to access network element or gateway, is carried so that the access network element or gateway retain the whole of the UE in the mobile management network element failure according to the configured information.When the determination result of determining unit 901 is no, information can not be sent to access network element or gateway, the configured informations of UE whole carrying are deleted when can also send to access network element or gateway and indicate mobile management network element failure.

Mobile management network element determines the whole carryings for retaining the UE whether are needed in mobile management network element failure according to some UE priority in the embodiment of the present invention, and notify access network element or gateway, make access network element or gateway the meeting member-retaining portion UE in mobile management network element failure whole carryings, rather than all discharge all UE whole carryings, so the UE of high priority can be caused to exist Business can also be carried out during mobile management network element failure.

Refering to Figure 10, the embodiment of the present invention provides a kind of network system, and the network system includes：Access network element 1001, mobile management network element 1002 and gateway S-GW1003；

Mobile management network element 1002, when the value of the parameter for the carrying that value for the property parameters for the carrying for determining UE need to retain when handling the mobile management network element failure set in strategy with carrying is matched, configured information is sent to access network element or gateway, so that the access network element or gateway retain the carrying of the UE in the mobile management network element failure according to the configured information；Wherein, mobile management network element can be MME or SGSN;

Access network element 1001, for receiving the configured information, in the mobile management network element failure, the carrying of the UE is retained according to the configured information；Wherein, when mobile management network element is MME, access network element is eNodeB, and when mobile management network element is SGSN, access network element is RNC.

Gateway 1003, for receiving the configured information, in the mobile management network element failure, the carrying of the UE is retained according to the configured information.

Whether the value of the parameter for the carrying that need to retain during the mobile management network element failure that mobile management network element is set by the value for judging the property parameters of UE carrying in tactful with carrying processing in the embodiment of the present invention matches to determine to determine the carrying that needs retain in mobile management network element failure, and notify access network element or gateway, access network element or gateway is set to retain UE part carrying in mobile management network element failure, rather than all discharge carryings all UE, so, when mobile management network element failure, the UE can also carry out business corresponding with the carrying retained, improve the experience of user.

Refering to Figure 11, the embodiment of the present invention provides a kind of network system, and the network system includes：Access network element

1101st, mobile management network element 1102 and gateway S-GW 1103；

Mobile management network element 1102, for UE priority, it is determined that needing to retain whole carryings of the UE when the mobile management network element failure；Configured information is sent to access network element and gateway, is carried so that the access network element or gateway retain the whole of the UE in the mobile management network element failure according to the configured information；Wherein, mobile management network element can be MME or SGSN;

Access network element 1101, for receiving the configured information, when the mobile management network element failure, retains the whole of the UE according to the configured information and carries；When mobile management network element is MME, access network element is eNodeB, and when mobile management network element is SGSN, access network element is RNC.

Gateway 1103, for receiving the configured information, when the mobile management network element failure, according to The configured information retains whole carryings of the UE.

Refering to Figure 12, the embodiment of the present invention provides a kind of network system, and the network system includes：Access network element 1201, mobile management network element 1202 and gateway S-GW 1203, wherein,

Access network element 1201, for when mobile management network element 1202 breaks down, when determining that the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element 1202 of failure is serviced is tactful with carrying processing is matched, retain the carrying of the UE；

Gateway 1203, for when mobile management network element 1203 breaks down, when determining that the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of failure is serviced is tactful with carrying processing is matched, retain the carrying of the UE；The parameter for the carrying that need to retain during the mobile management network element failure wherein set in carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE.

The embodiment of the present invention determines the whole carryings for retaining the UE whether are needed in mobile management network element failure according to some UE priority, and notify access network element or gateway, make access network element or gateway the meeting member-retaining portion UE in mobile management network element failure whole carryings, rather than all discharge all UE whole carryings, can so cause the UE of high priority can also carry out business in mobile management network element failure.

One of ordinary skill in the art will appreciate that realizing that all or part of step in above-described embodiment method can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable recording medium, such as read-only storage, disk or CD etc..

Processing method, the network equipment and the network system of the mobile management network element failure provided above the embodiment of the present invention are described in detail, specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help to understand method and its core concept of the invention；Simultaneously for those of ordinary skill in the art, according to the thought of the present invention, it will change in specific embodiments and applications, in summary, this specification content should not be construed as limiting the invention.

Claims

Claim

1st, a kind of processing method of mobile management network element failure, it is characterised in that including：

Determine that mobile management network element breaks down；

When determining that the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced is tactful with carrying processing is matched, retain the carrying of the UE, the parameter of the carrying that need to retain during the mobile management network element failure set in the carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE.

2nd, according to the method described in claim 1, it is characterised in that

Determining that the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced is tactful with carrying processing is matched is specially：

Determine that the value of the parameter for the carrying that need to retain when the value of at least one parameter is with the mobile management network element failure set in carrying processing strategy in quality of service type mark QCI, distribution and reservation priority A P, the APN APN of the carrying for the UE that the mobile management network element of failure is serviced is matched.

3rd, according to the method described in claim 1, characterized in that, set during the value of the property parameters of the carrying for the UE that the mobile management network element for determining the failure is serviced is tactful with carrying processing mobile management network element failure when the value of the parameter of carrying that need to retain match including：

Determine that the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced is equal to the value of the parameter for the carrying that need to retain during the mobile management network element failure set in the carrying processing strategy；

Or,

Determine within the span of parameter for the carrying that the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced need to retain in the mobile management network element failure set during the carrying processing is tactful.

4th, according to the method described in claim 1, it is characterised in that after the carrying of the UE is retained, this method also includes：

When the condition of predetermined release UE connections is met, sent a notification message to the UE, the notification message is used to indicate that the UE initiates attachment flow.

5th, method according to claim 4, it is characterised in that The condition of the predetermined release UE connections is the time that the UE remains static to reach scheduled duration, or, access network element can not continue as the UE and provide service.

6th, a kind of processing method of mobile management network element failure, it is characterised in that including：

When the value of the parameter for the carrying that mobile management network element need to retain when determining the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy is matched, configured information is sent to access network element or gateway, so that the access network element or gateway retain the carrying of the UE in the mobile management network element failure according to the configured information, the parameter for the carrying that need to retain during the mobile management network element failure set in wherein described carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE.

7th, method according to claim 6, it is characterised in that

The value of the parameter for the carrying that mobile management network element need to retain when determining the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy, which is matched, is specially：

Determine that the value of the parameter for the carrying that need to retain when the value of at least one parameter is with the mobile management network element failure set in carrying processing strategy in quality of service type mark QCI, distribution and reservation priority A P, the APN APN of UE carrying is matched.

8th, method according to claim 6, it is characterized in that, the value of the parameter for the carrying that the mobile management network element need to retain when determining the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy is matched, including：

The mobile management network element determines that the value of the property parameters of UE carrying is equal to the value of the parameter for the carrying that need to retain during the mobile management network element failure set in the carrying processing strategy；Or

The mobile management network element is determined within the span of parameter for the carrying that the value of the property parameters of UE carrying need to retain in the mobile management network element failure set during the carrying processing is tactful.

9th, according to any described method of claim 6 to 8, it is characterized in that, the value of the parameter for the carrying that the mobile management network element need to retain when determining the value of the property parameters of UE carrying with the mobile management network element failure set in carrying processing strategy is matched, configured information is sent to access network element or gateway, including：

The mobile management network element is when the ^ for setting up the UE is carried, whether the value of the parameter for the carrying that the mobile management network element need to retain when determining the value of the property parameters of the UE of foundation carrying with the mobile management network element failure set in carrying processing strategy matches, if it does, then to access network element or Person's gateway sends configured information.

10th, a kind of processing method of mobile management network element failure, it is characterised in that including：

Mobile management network element UE priority, it is determined that needing to retain whole carryings of the UE when the mobile management network element failure；

The mobile management network element sends configured information to access network element or gateway, is carried so that the access network element or gateway retain the whole of the UE in the mobile management network element failure according to the configured information.

11st, method according to claim 7, it is characterised in that

Mobile management network element UE priority, it is determined that the whole carryings for needing to retain the UE when the mobile management network element failure are specially：

Mobile management network element handles the priority of UE in strategy according to the priority or carrying of UE in signing information, it is determined that needing to retain UE whole carryings when the mobile management network element failure.

12nd, a kind of network element device, it is characterised in that including：

Failure determining unit, for determine mobile management network element whether failure；

Carry determining unit, for when the determination result of the failure determining unit is is, determine whether the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced is tactful with carrying processing matches, wherein the parameter for carrying the carrying that need to retain during the mobile management network element failure set in processing strategy is corresponding parameter with the property parameters of the carrying of the UE；

Processing unit is carried, for when the determination result of the carrying determining unit is is, retaining described

The 7 of UE | carry.

13rd, equipment according to claim 12, it is characterised in that also include：

Transmitting element, for when the condition of predetermined release UE connections is met, being sent a notification message to UE, the notification message is used to indicate that UE initiates attachment flow.

14th, a kind of mobile management network element, it is characterised in that including：

Determining unit, whether the value of the parameter for the carrying that the value for the property parameters for the carrying for determining UE need to retain when handling the mobile management network element failure set in strategy with carrying matches, and the parameter for carrying the carrying that need to retain during the mobile management network element failure set in processing strategy is corresponding parameter with the property parameters of the carrying of the UE； Transmitting element, for the determination result in determining unit for when being, configured information is sent to access network element or gateway, so that the access network element or gateway retain the carrying of the UE in the mobile management network element failure according to the configured information.

15th, mobile management network element according to claim 14, it is characterised in that

Whether the determining unit, the value of the property parameters of the carrying for determining UE is equal to the value of the parameter for the carrying that need to retain during the mobile management network element failure set in the carrying processing strategy；Or the determining unit, whether the value of the property parameters of the carrying for determining UE is within the span of the parameter for the carrying that need to retain in the mobile management network element failure set during the carrying processing is tactful.

16th, a kind of mobile management network element, it is characterised in that including：

Determining unit, for the priority according to UE, it is determined that whether needing to retain whole carryings of the UE when the mobile management network element failure；

Transmitting element, for the determination result in determining unit for when being, configured information is sent to access network element or gateway, is carried so that the access network element or gateway retain the whole of the UE in the mobile management network element failure according to the configured information.

17th, mobile management network element according to claim 16, it is characterised in that

The determining unit, for the priority of UE in the priority according to UE in signing information or carrying processing strategy, it is determined that whether needing to retain whole carryings of the UE when the mobile management network element failure.

18th, a kind of network system, it is characterised in that including：Mobile management network element, access network element and gateway, wherein,

Mobile management network element, when the value of the parameter for the carrying that value for the property parameters for the carrying for determining UE need to retain when handling the mobile management network element failure set in strategy with carrying is matched, configured information is sent to access network element or gateway, so that the access network element or gateway retain the carrying of the UE in the mobile management network element failure according to the configured information, the parameter for the carrying that need to retain during the mobile management network element failure set in the carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE；

Access network element, for receiving the configured information, in the mobile management network element failure, the carrying of the UE is retained according to the configured information；

Gateway, for receiving the configured information, in the mobile management network element failure, according to The configured information retains the carrying of the UE.

19th, a kind of network system, it is characterised in that including：Mobile management network element, access network element and gateway, wherein,

Mobile management network element, for UE priority, it is determined that needing to retain whole carryings of the UE when the mobile management network element failure；Configured information is sent to access network element and gateway, carried so that the access network element or gateway retain the whole of the UE in the mobile management network element failure according to the configured information, the parameter for carrying the carrying that need to retain during the mobile management network element failure set in processing strategy is corresponding parameter with the property parameters of the carrying of the UE；

Access network element, for receiving the configured information, when the mobile management network element failure, retains the whole of the UE according to the configured information and carries；

Gateway, for receiving the configured information, when the mobile management network element failure, retains the whole of the UE according to the configured information and carries.

20th, a kind of network system, it is characterised in that including：Mobile management network element, access network element and gateway, wherein,

Access network element, for when mobile management network element breaks down, when determining that the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced is tactful with carrying processing is matched, retain the carrying of the UE；Gateway, for when mobile management network element breaks down, when determining that the value of the parameter for the carrying that need to retain during the mobile management network element failure set during the value of the property parameters of the carrying for the UE that the mobile management network element of the failure is serviced is tactful with carrying processing is matched, retain the carrying of the UE；The parameter for the carrying that need to retain during the mobile management network element failure set in wherein described carrying processing strategy is corresponding parameter with the property parameters of the carrying of the UE.