CN103841545A

CN103841545A - Capability information reporting method and device in MME pool scene

Info

Publication number: CN103841545A
Application number: CN201210489096.3A
Authority: CN
Inventors: 陈霞云; 倪国瑜; 孙晓锋; 席国宝
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-11-27
Filing date: 2012-11-27
Publication date: 2014-06-04
Anticipated expiration: 2032-11-27
Also published as: CN103841545B; WO2014082572A1

Abstract

An embodiment of the invention discloses a voice service maintenance method in a mobile management entity (MME) pool scene. An embodiment of the invention also discloses a method and corresponding device for reporting capability information of user equipment (UE) in the MME pool scene. The voice service maintenance method comprises the following steps: when a first MME fails in an MME pool, a second MME in the MME pool receives a first tracking area update (TAU) request initiated by the UE, the first MME being an original service MME of the UE, and the second MME being a service MME after the first MME fails; and during the process of tracking area updating initiated by the first TAU request, the second MME obtains capability information of the UE from the first MME, or after finishing the process of tracking area updating initiated by the first TAU request, the second MME obtains the capability information of the UE from the UE. The capability information of the UE comprises single radio voice call continuity (SRVCC) relevant information of the UE, or circuit switched fallback (CSFB) capability information of the UE. With the method and device in the invention, the capability information of the UE can be obtained timely, and the availability of the circuit domain service of the UE and the continuity of the voice service of the UE are guaranteed.

Description

Method and device that a kind of MME pond scene ability information reports

Technical field

The present invention relates to communication technical field, relate in particular to method and device that a kind of MME pond scene ability information reports.

Background technology

At 4G(4rd-generation) in network, protocol definition (Packet Switched, PS) network of packet switching.But (Circuit Switched Circuit-switched in actual life, CS) business is essential, so third generation partner program (The3rd Generation Partnership Project, 3GPP) agreement has specified two kinds of CS business solutions, respectively circuit switching fall-back (Circuit Switched Fallback, and long-term evolving network speech business (Voice over Long Term Evolution, VoLTE) CSFB).In CSFB scheme, user's combined registering is to 4G network, in the time that user need to carry out voice call business, informing network side initiatively falls back to 2/3G network by this user by the network equipment, thereby makes user can utilize traditional 2/3G network to carry out voice call business.In VoLTE scheme, user directly carries out voice call at LTE network by Long Term Evolution (Long Term Evolution, LTE) carrying.But in VoLTE scheme, when user is from 4G Network Mobility to 2/3G network time, need to pass through the continuity that Single Radio Voice Call Continuity (Single Radio Voice Call Continuity, SRVCC) technology keeps audio call.In SRVCC technology, when user utilizes VoLTE to converse under 4G network, if user moves to 2/3G network, coordinate the switching of PS to CS by network side and terminal, and utilized traditional CS equipment to carry out voice call.

In the deployment of 4G, can dispose Mobility Management Entity (MobilityManagement Entity, MME) pond in order to increase network reliability.MME pond refers to the evolved base station in the district of pond, also can be described as evolved Node B (evolved Node B, eNB) be connected on multiple MME, as user terminal (UserEquipment, UE) region that while movement in Chi district, the MME of service does not change, entirely interconnected between the MME in the eNB HeMMEChi district in MME pond.

In prior art one, User support SRVCC ability, and carry out voice call by VoLTE.Can be GL when user terminal networks, such as the information such as MS Classmark2, MS Classmark3 and Supported Codec are notified network side, as above cell is the necessary information of carrying out SRVCC.In the time of S1 interface fault between serving MME (a hereinafter referred to as MME) and service eNB, UE initiates periodically tracing section updating (Tracking Area Update, TAU) flow process.Concrete: first UE sends message to service eNB, and tells service eNB: the core network nodes information that UE accessed last time is a MME; Service eNB is found the interface fault between a MME, so service eNB is again for selecting normal new hereinafter referred to as the 2nd MME of MME(in UE MMEChi district) to serve, forwarding messages is given the 2nd MME; The 2nd MME finds it is the TAU flow process that MME changes after receiving message, so core net node the one MME that finds user to register last time, obtain user's contextual information from a MME, simultaneously, the 2nd MME is to home subscriber server (Home Subscriber Server, HSS) carry out location update operations, HSS also sends user log off operation to a MME; Periodically TAU flow process finishes.

In prior art one, in the periodicity TAU flow process that core net node should not change, change has occurred core net node, and (periodically TAU is a kind of special TAU flow process, and after UE enters evolved packet system connectivity management idle condition, periodically TAU timer starts timing; After UE enters evolved packet system connectivity management connection status, timer stops timing; After timer expiry, UE can initiatively initiate periodically TAU flow process.Under normal circumstances, for periodicity TAU flow process, core net node does not change).In the time that needs carry out SRVCC processing, the 2nd MME can refuse to process, and then causes speech business to be interrupted.

In prior art two, User support CSFB ability, and need to carry out voice call by CSFB technology.So first, user can combine and adheres to, under service eNB, combine and be registered to a MME and (the Mobile Switching Center of mobile switching centre, MSC) on, now a MME and MSC are normal about the SGs interface conjunctionn of UE, and user can carry out voice call and short message service under this scene.In the time of S1 interface fault between a MME and service eNB, UE initiates periodically TAU flow process, and process step is similar to the process step in prior art one, does not repeat herein.

In prior art two, in the periodicity TAU flow process that core net node should not change, there is change in core net node, and this can cause user follow-up all voice calls and short message service unavailable.

Summary of the invention

Embodiment of the present invention technical problem to be solved is, a kind of MME pond method and device that scene ability information reports are provided, be used for solving prior art, in the time of serving MME fault, the disabled problem of speech business interruption or speech business and short message service.

In order to solve the problems of the technologies described above, first aspect, provides a kind of Mobility Management Entity pond scene speech business keeping method, comprising:

In the time of a MME fault in Mobility Management Entity MME pond, the 2nd MME in described MME pond receives the first tracing section updating TAU request that user terminal is initiated, the former serving MME that a described MME is described user terminal, described the 2nd MME is the serving MME after a described MME fault;

In the tracing section updating process of initiating in a described TAU request, described the 2nd MME obtains the ability information of described user terminal from a described MME, or, after the tracing section updating of initiating in a described TAU request finishes, described the 2nd MME obtains the ability information of described user terminal from described user terminal, the ability information of described user terminal comprises: the Single Radio Voice Call Continuity SRVCC relevant information of described user terminal, or the circuit switching fall-back CSFB ability information of described user terminal.

As the possible implementation of the first of described first aspect, a described TAU asks the ability information of not carrying described user terminal, and a described TAU request comprises: periodically TAU request.

In conjunction with the possible implementation of the first of described first aspect or described first aspect, the possible implementation of the second of described first aspect is also provided, in the described tracing section updating process of initiating in a described TAU request, the ability information that described the 2nd MME obtains described user terminal from a described MME comprises:

Described the 2nd MME determines that described user terminal is not registered user's terminal of described the 2nd MME; Send context request to ask the contextual information of described user terminal to a described MME; Receive a described MME in the context response that receives the contextual information that comprises described user terminal sending after described context request, described context response also comprises: the SRVCC relevant information of described user terminal, or the CSFB combined registering information of described user terminal.

In conjunction with the possible implementation of the second of described first aspect, the third possible implementation of described first aspect is also provided, described method also comprises:

In the time of SRVCC relevant information that described context response comprises described user terminal, described the 2nd MME preserves the SRVCC relevant information of described user terminal so that described the 2nd MME carries out SRVCC processing, and sends and upgrade position requests to carry out position renewal to home subscriber server; Or, in the time of CSFB combined registering information that described context response comprises described user terminal, described the 2nd MME sends and upgrades position requests to carry out position renewal to home subscriber server, and, send position updating request to carry out the renewal of SGs interface to mobile switching centre.

In conjunction with the possible implementation of the first of described first aspect or described first aspect, the 4th kind of possible implementation of described first aspect is also provided, after described tracing section updating of initiating in a described TAU request finishes, the ability information that described the 2nd MME obtains described user terminal from described user terminal comprises:

Described the 2nd MME determines that described user terminal is not registered user's terminal of described the 2nd MME; Send TAU to described user terminal and accept message, or send TAU refuse information to described user terminal, wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged; Send the user terminal context release command that carries cause specific value to evolved base station eNB, so that described cause specific value is notified described user terminal by described eNB, thereby make described user terminal initiate the 2nd TAU request to described the 2nd MME, described the 2nd TAU asks the ability information of carrying described user terminal; Thereby receive described the 2nd TAU request and obtain the ability information of described user terminal.

In conjunction with the 4th kind of possible implementation of described first aspect, the 5th kind of possible implementation of described first aspect is also provided, described method also comprises:

Described the 2nd MME sends context request to ask the contextual information of described user terminal to a described MME; Thereby receive a described MME and obtain described contextual information receiving the context response that comprises described contextual information sending after described context request; Send and upgrade position requests to carry out position renewal to home subscriber server; If described the 2nd TAU asks the CSFB ability information of carrying described user terminal, described method further comprises: send position updating request to carry out the renewal of SGs interface to mobile switching centre.

In conjunction with the possible implementation of the first of described first aspect or described first aspect, the 6th kind of possible implementation of described first aspect is also provided, after described tracing section updating of initiating in a described TAU request finishes, the ability information that described the 2nd MME obtains described user terminal from described user terminal comprises:

Described the 2nd MME determines that described user terminal is not registered user's terminal of described the 2nd MME; Send TAU refuse information so that described user terminal initiates to adhere to request to described the 2nd MME to described user terminal, described in adhere to CSFB that request carries described user terminal and combine and adhere to information, or carry the SRVCC relevant information of described user terminal; Described in reception, adhere to the processing of adhering to of asking and carrying out described user terminal.

Second aspect, provides a kind of Mobility Management Entity pond method that scene ability information of user terminal reports, and comprising:

User terminal is initiated a TAU request, former serving MME the one MME of described user terminal breaks down, a described TAU request is received by the 2nd MME, and described the 2nd MME is the serving MME after a described MME fault, and a described MME and the 2nd MME are deployed in same MME pond;

After the tracing section updating of initiating in a described TAU request finishes, send the message of the ability information that comprises described user terminal to described the 2nd MME, so that described the 2nd MME obtains the ability information of described user terminal, the ability information of described user terminal comprises: the SRVCC relevant information of described user terminal, or the CSFB ability information of described user terminal.

As the possible implementation of the first of described second aspect, a described TAU asks the ability information of not carrying described user terminal, and a described TAU request comprises: periodically TAU request.

In conjunction with the possible implementation of the first of described second aspect or described second aspect, the possible implementation of the second of described second aspect is also provided, after described tracing section updating of initiating in a described TAU request finishes, the message that sends the ability information that comprises described user terminal to described the 2nd MME comprises:

Described user terminal receives described the 2nd MME and accepts message or TAU refuse information at the TAU that receives transmission after a described TAU request, and wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged; Receive the radio resource control RRC release message that carries cause specific value that evolved base station eNB sends, wherein, described eNB receive described the 2nd MME send the user's context release command of carrying described cause specific value after send described RRC release message to described user terminal; Initiate the 2nd TAU request to described the 2nd MME, described the 2nd TAU asks the ability information of carrying described user terminal.

In conjunction with the possible implementation of the first of described second aspect or described second aspect, the third possible implementation of described second aspect is also provided, after described tracing section updating of initiating in a described TAU request finishes, the message that sends the ability information that comprises described user terminal to described the 2nd MME comprises:

Described user terminal receives described the 2nd MME and is receiving the TAU refuse information sending after a described TAU request, and described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is changed; Initiate to adhere to request so that described the 2nd MME carries out the processing of adhering to of described user terminal to described the 2nd MME, described in adhere to CSFB that request carries described user terminal and combine and adhere to information, or, the SRVCC relevant information of described user terminal.

The third aspect, provides a kind of Mobility Management Entity pond method that scene ability information of user terminal reports, and comprising:

After the one MME breaks down, receive that the 2nd MME sends for asking the context request of contextual information of user terminal, the former serving MME that a described MME is described user terminal, described the 2nd MME is the serving MME after a described MME breaks down;

Send context response to described the 2nd MME, the contextual information that described context response comprises described user terminal and ability information, the ability information of described user terminal comprises: the SRVCC relevant information of described user terminal, or the CSFB ability information of described user terminal.

As a kind of possible implementation of the described third aspect, the CSFB ability information of described user terminal comprises: the CSFB combined registering information of described user terminal.

Fourth aspect, provides a kind of Mobility Management Entity MME, comprising:

The first receiving element, for when the MME fault in Mobility Management Entity MME pond, receives the first tracing section updating TAU request that user terminal is initiated, the former serving MME that a described MME is described user terminal;

The first processing unit, for the tracing section updating process of initiating in a described TAU request, obtain the ability information of described user terminal from a described MME, or, after the tracing section updating of initiating in a described TAU request finishes, obtain the ability information of described user terminal from described user terminal, the ability information of described user terminal comprises: the Single Radio Voice Call Continuity SRVCC relevant information of described user terminal, or the circuit switching fall-back CSFB ability information of described user terminal.

As the possible implementation of the first of described fourth aspect, a described TAU asks the ability information of not carrying described user terminal, and a described TAU request comprises: periodically TAU request.

In conjunction with the possible implementation of the first of described fourth aspect or described fourth aspect, the possible implementation of the second of described fourth aspect is also provided, described MME also comprises: judging unit, for receiving at described the first receiving element after a described TAU request, judge whether described user terminal is registered user's terminal of described MME, if not, trigger described the first processing unit.

In conjunction with the possible implementation of the second of described fourth aspect, the third possible implementation of described fourth aspect is also provided, described the first processing unit comprises:

First sends subelement, for sending context request to ask the contextual information of described user terminal to a described MME; First receives subelement, for receiving a described MME in the context response that receives the contextual information that comprises described user terminal sending after described context request, described context response also comprises: the SRVCC relevant information of described user terminal, or the CSFB combined registering information of described user terminal.

In conjunction with the third possible implementation of described fourth aspect, the 4th kind of possible implementation of described fourth aspect is also provided, described MME also comprises:

Memory cell, when comprising the SRVCC relevant information of described user terminal when the contextual information of described context response, stores the SRVCC relevant information of described user terminal so that carry out SRVCC processing; The second processing unit, for sending and upgrade position requests to carry out position renewal to home subscriber server.

In conjunction with the third possible implementation of described fourth aspect, the 5th kind of possible implementation of described fourth aspect is also provided, described MME also comprises:

The 3rd processing unit, when comprise the CSFB combined registering information of described user terminal when the contextual information of described context response, sends and upgrades position requests to carry out position renewal to home subscriber server; Fourth processing unit, for sending position updating request to carry out the renewal of SGs interface to mobile switching centre.

In conjunction with the possible implementation of the second of described fourth aspect, the 6th kind of possible implementation of described fourth aspect is also provided, described the first processing unit comprises:

Second sends subelement, accepts message, or send TAU refuse information to described user terminal for sending TAU to described user terminal, and wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged; The 3rd sends subelement, for send the user terminal context release command that carries cause specific value to evolved base station eNB, so that described cause specific value is notified described user terminal by described eNB, thereby make described user terminal initiate the 2nd TAU request to described MME, described the 2nd TAU asks the ability information of carrying described user terminal; Second receives subelement, thereby obtains the ability information of described user terminal for receiving described the 2nd TAU request.

In conjunction with the 6th kind of possible implementation of described fourth aspect, the 7th kind of possible implementation of described fourth aspect is also provided, described MME also comprises:

The first transmitting element, for sending context request to ask the contextual information of described user terminal to a described MME; The second receiving element, is receiving for receiving a described MME context response that comprises described contextual information sending after described context request; The 5th processing unit, for sending and upgrade position requests to carry out position renewal to home subscriber server.

In conjunction with the 7th kind of possible implementation of described fourth aspect, the 8th kind of possible implementation of described fourth aspect is also provided, described MME also comprises: the 6th processing unit, and for sending position updating request to carry out the renewal of SGs interface to mobile switching centre.

In conjunction with the possible implementation of the second of described fourth aspect, the 9th kind of possible implementation of described fourth aspect is also provided, described the first processing unit comprises:

The 4th sends subelement, for sending TAU refuse information to described user terminal so that described user terminal initiates to adhere to request to described the 2nd MME, describedly adhere to CSFB that request carries described user terminal and combine and adhere to information, or carry the SRVCC relevant information of described user terminal; The 3rd receives subelement, described in receiving, adheres to request; Process subelement, for carrying out the processing of adhering to of described user terminal.

The 5th aspect, provides a kind of ability information reporting device of user terminal, comprising:

Transmitting element, be used for sending a TAU request, former serving MME the one MME of described user terminal breaks down, and a described TAU request is received by the 2nd MME, described the 2nd MME is the serving MME after a described MME fault, and a described MME and the 2nd MME are deployed in same MME pond;

The first processing unit, after finishing for the tracing section updating of initiating in a described TAU request, send the message of the ability information that comprises described user terminal to described the 2nd MME, so that described the 2nd MME obtains the ability information of described user terminal, the ability information of described user terminal comprises: the SRVCC relevant information of described user terminal, or the CSFB ability information of described user terminal.

As the possible implementation of the first of described the 5th aspect, a described TAU asks the ability information of not carrying described user terminal, and a described TAU request comprises: periodically TAU request.

In conjunction with the possible implementation of the first of described the 5th aspect or described the 5th aspect, the possible implementation of the second of described the 5th aspect is also provided, described the first processing unit comprises:

First receives subelement, accept message or TAU refuse information for receiving described the 2nd MME at the TAU that receives transmission after a described TAU request, wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged; Second receives subelement, the radio resource control RRC release message that carries cause specific value sending for receiving evolved base station eNB, wherein, described eNB receive described the 2nd MME send the user's context release command of carrying described cause specific value after send described RRC release message to described user terminal; First sends subelement, and for initiate the 2nd TAU request to described the 2nd MME, described the 2nd TAU asks the ability information of carrying described user terminal.

In conjunction with the possible implementation of the first of described the 5th aspect or described the 5th aspect, the third possible implementation of described the 5th aspect is also provided, described the first processing unit comprises:

The 3rd receives subelement, is receiving for receiving described the 2nd MME the TAU refuse information sending after a described TAU request, and described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is changed; Second sends subelement, for sending and adhere to request so that described the 2nd MME carries out the processing of adhering to of described user terminal to described the 2nd MME, describedly adhere to CSFB that request carries described user terminal and combine and adhere to information, or, the SRVCC relevant information of described user terminal.

The 6th aspect, provides a kind of ability information reporting device of user terminal, comprising:

Receiving element, for receive that the 2nd MME sends for asking the context request of contextual information of user terminal, serving MME after the former serving MME that described the 2nd MME is described user terminal breaks down, described ability information reporting device is arranged in described former serving MME, and described former serving MME and the 2nd MME are deployed in same MME pond;

Transmitting element, for sending context response to described the 2nd MME, the contextual information that described context response comprises described user terminal and ability information, the ability information of described user terminal comprises: the SRVCC relevant information of described user terminal, or the CSFB ability information of described user terminal.

As a kind of possible implementation of described the 6th aspect, the CSFB ability information of described user terminal comprises: the CSFB combined registering information of described user terminal.

The 7th aspect, a kind of Mobility Management Entity cell system is provided, has comprised: a MME and the 2nd MME, wherein, the MME that described the 2nd MME provides for embodiment of the present invention fourth aspect, a described MME comprises the ability information reporting device that the embodiment of the present invention the 6th aspect provides.

Eight aspect, a kind of ability information of user terminal reporting system is provided, comprise: the 2nd MME and user terminal, wherein, the MME that described the 2nd MME provides for embodiment of the present invention fourth aspect, described user terminal comprises the ability information reporting device that the embodiment of the present invention the 5th aspect provides.

Implement the embodiment of the present invention, there is following beneficial effect: in the situation that a MME breaks down, the 2nd MME can the one obtains the ability information of user terminal in the TAU process initiated of TAU request from a described MME, or after finishing, obtains the TAU initiating at a TAU ability information of user terminal from user terminal, and then can carry out SRVCC processing or CSFB processing according to the ability information of user terminal, thereby can ensure the circuit domain business availability of user terminal and the sustainability of speech business.

Brief description of the drawings

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is according to the schematic flow sheet of the MME pond scene speech business keeping method of an embodiment of the present invention;

Fig. 2 is according to the schematic flow sheet of the MME pond scene speech business keeping method of an embodiment of the present invention;

Fig. 3 is according to the schematic flow sheet of the MME pond scene speech business keeping method of an embodiment of the present invention;

Fig. 4 is according to the schematic flow sheet of the MME pond scene speech business keeping method of an embodiment of the present invention;

Fig. 5 is according to the schematic flow sheet of the MME pond scene speech business keeping method of an embodiment of the present invention;

Fig. 6 is the schematic flow sheet of the method that reports according to the Mobility Management Entity pond scene ability information of user terminal of an embodiment of the present invention;

Fig. 7 is the schematic flow sheet of the method that reports according to the Mobility Management Entity pond scene ability information of user terminal of an embodiment of the present invention;

Fig. 8 is according to the structural representation of the MME of an embodiment of the present invention;

Fig. 9 is according to the structural representation of the MME of an embodiment of the present invention;

Figure 10 is according to the structural representation of the MME of an embodiment of the present invention;

Figure 11 is according to the structural representation of the MME of an embodiment of the present invention;

Figure 12 is according to the structural representation of the MME of an embodiment of the present invention;

Figure 13 A is according to the structural representation of the ability information reporting device of the user terminal of an embodiment of the present invention;

Figure 13 B is according to the structural representation of the first processing unit of the ability information reporting device of the user terminal of an embodiment of the present invention;

Figure 13 C is according to the structural representation of the first processing unit of the ability information reporting device of the user terminal of an embodiment of the present invention;

Figure 14 is according to the structural representation of the ability information reporting device of the user terminal of an embodiment of the present invention;

Figure 15 is according to the structural representation of the ability information reporting device of the user terminal of an embodiment of the present invention;

Figure 16 is according to the structural representation of the ability information reporting device of the user terminal of an embodiment of the present invention;

Figure 17 is according to the schematic diagram of the MME cell system of an embodiment of the present invention;

Figure 18 is according to the schematic diagram of the ability information of user terminal reporting system of an embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Fig. 1 is that with reference to Fig. 1, the method comprises according to the schematic flow sheet of the MME pond scene speech business keeping method of an embodiment of the present invention:

100: in the time of a MME fault in Mobility Management Entity MME pond, the 2nd MME in described MME pond receives the first tracing section updating TAU request that user terminal sends, the former serving MME that a described MME is described user terminal, described the 2nd MME is the serving MME after a described MME fault.

Wherein, the service eNB of described user terminal receives after a described TAU request of described user terminal transmission, find the S1 interface fault between described eNB and a described MME, in described MME pond, for reappearing, described user terminal chooses a normal MME(in the present embodiment, be described the 2nd MME), and a described TAU request is pass-through to this normal MME.

Optionally, a described TAU asks the ability information of not carrying described user terminal, and a described TAU request comprises: periodically TAU request.

102: in the tracing section updating process of initiating in a described TAU request, described the 2nd MME obtains the ability information of described user terminal from a described MME, or, after the tracing section updating of initiating in a described TAU request finishes, described the 2nd MME obtains the ability information of described user terminal from described user terminal, the ability information of described user terminal comprises: the Single Radio Voice Call Continuity SRVCC relevant information of described user terminal, or the circuit switching fall-back CSFB ability information of described user terminal.

Wherein, the ability information of described user terminal can embody described user terminal support CSFB ability or support SRVCC ability.Optionally, the SRVCC relevant information of described user terminal comprises: SRVCC ability information, MS Classmark2, MS Classmark3 and Supported Codec information.Optionally, the circuit switching fall-back CSFB ability information of described user terminal comprises: CSFB combined registering information or CSFB combine and adhere to information etc.

In the method that the present embodiment provides, in the time that a MME breaks down, the 2nd MME can ask in the TAU process of initiation at a described TAU, or after the TAU of a described TAU request initiation finishes, obtains the ability information of user terminal.While having avoided a MME to break down, the 2nd MME cannot obtain the problem of the ability information of UE, and then can ensure the availability of circuit domain business and the sustainability of speech business.

Optionally, in a kind of implementation of the present embodiment, receive after a described TAU request at described the 2nd MME, described the 2nd MME determine described user terminal be not described the 2nd MME registered user's terminal (for example, judge according to the Globally Unique MME Identifier carrying in a described TAU request), send context request to ask the contextual information of described user terminal to a described MME; Receive a described MME in the context response that receives the contextual information that comprises described user terminal sending after described context request, described context response also comprises: the SRVCC relevant information of described user terminal, or the CSFB combined registering information of described user terminal (for example: Location Area Identification (Location Area ID, LAI) and VLR Visitor Location Register number (Visitor Location Register Number, VLR Number)).

Optionally, in this implementation, in the time of SRVCC relevant information that described context response comprises described user terminal, described the 2nd MME preserves the SRVCC relevant information of described user terminal so that described the 2nd MME carries out SRVCC processing, and sends and upgrade position requests to carry out position renewal to home subscriber server.Specifically can comprise:

Described the 2nd MME preserves the SRVCC relevant information of described user terminal; Send and upgrade position requests to described home subscriber server, for example, so that described home subscriber server upgrades positional information (: MME-ID and international mobile subscriber identity) with deletion with a described MME relevant positional information relevant to described the 2nd MME; Afterwards, described the 2nd MME sends TAU to described user terminal and accepts message and receive the TAU that described user terminal returns to complete message.For more new technological process etc. of the concrete signaling process wherein relating to, bearer context, the present invention does not limit.

Optionally, in this implementation, in the time of CSFB combined registering information that described context response comprises described user terminal, described the 2nd MME sends and upgrades position requests to carry out position renewal to described home subscriber server, and, complete combined registering thereby send position updating request to moving exchanging center MSC to carry out the renewal of SGs interface.Wherein, a described MME can insert described CSFB combined registering information in the extended field of described context response.Wherein, the renewal of SGs interface can adopt existing agreement, and the present invention does not limit this.

In the method that this implementation provides, the in the situation that of a MME fault, in the TAU process that described the 2nd MME can initiate in a described TAU request, obtain the ability information of described UE, and then carry out position renewal, the ability that can support according to described UE carries out SRVCC processing or CSFB processes, and has ensured the availability of circuit domain business and the sustainability of speech business.

Optionally, in a kind of implementation of the present embodiment, receive after a described TAU request at described the 2nd MME, described the 2nd MME determines that described user terminal is not registered user's terminal of described the 2nd MME, carries out following steps:

1) send TAU to described user terminal and accept message, or send to described user terminal the TAU flow process that TAU refuse information is initiated to finish a described TAU request.Wherein, described TAU refuse information is carried the Reason For Denial value of evolved packet system mobile management (EPS mobility management, the EMM) login state that does not change UE, for example: conditional IE error(condition cell error).

2) send to described eNB the user terminal context release command that carries cause specific value, so that described cause specific value is notified described user terminal by described eNB, thereby make described user terminal send the 2nd TAU request to described eNB, described the 2nd TAU asks the ability information of carrying described user terminal.Wherein, described cause specific value can be that Load Balancing TAU Required(needs the heavy distribution T AU of load).

3) thus receive described the 2nd TAU request that described eNB forwards and obtain the ability information of described user terminal.

Optionally, in the step 3 of this implementation, the TAU flow process that described the 2nd TAU request is initiated is the TAU flow process that tracking area (TrackingArea, TA) changes, and described the 2nd TAU asks the SRVCC relevant information of carrying described user terminal.Described the 2nd MME receives after described the 2nd TAU request, sends context request to ask the contextual information of described user terminal to a described MME; Thereby receive a described MME and obtain described contextual information receiving the context response that comprises described contextual information sending after described context request; Send and upgrade position requests to carry out position renewal to home subscriber server.

Optionally, in the step 3 of this implementation, the TAU flow process that described the 2nd TAU request is initiated is the TA(tracking area of associating)/LA(lane place) more new technological process is (now, the TAU type of described the 2nd TAU request is " combined TA/LA updating ", represents that described user terminal support maybe needs to carry out CSFB).Described the 2nd MME receives after described the 2nd TAU request, sends context request to ask the contextual information of described user terminal to a described MME; Thereby receive a described MME and obtain described contextual information receiving the context response that comprises described contextual information sending after described context request; Send and upgrade position requests to carry out position renewal to home subscriber server; Send position updating request to carry out the renewal of SGs interface to mobile switching centre.

In the method that this implementation provides, after the TAU flow process that described the 2nd MME initiates in a described TAU request finishes, obtain the ability information of described UE, the line position of going forward side by side upgrades, the ability that can support according to described UE carries out SRVCC processing or CSFB processes, and has ensured the availability of circuit domain business and the sustainability of speech business.

Optionally, in a kind of implementation of the present embodiment, receive after a described TAU request at described the 2nd MME, described the 2nd MME carries out following processing:

1) determine that described user terminal is not registered user's terminal of described the 2nd MME.

2) send TAU refuse information so that described user terminal sends and adheres to request to described eNB to described user terminal, described in adhere to CSFB that request carries described user terminal and combine and adhere to information, or carry the SRVCC relevant information of described user terminal.Wherein, described TAU refuse information is carried cause specific value (for example: Implicitly detached(implicit detach), or UE identity cannot be derived by the network(network side can not obtain user ID)) the EMM state of described UE is changed.

3) described in receiving that described eNB forwards, adhere to the processing of adhering to of asking and carrying out described user terminal.The detailed handling process of adhering to can be with reference to prior art, and the present invention does not limit this.

Fig. 2 is according to the schematic flow sheet of the MME pond scene speech business keeping method of an embodiment of the present invention, with reference to Fig. 2, supports CSFB ability as example taking user terminal, and the method comprises:

2a) in the situation that of a MME fault, initiate TAU flow process periodically and tell UE described in described service eNB that the core net node that accessed last time is a MME thereby UE sends a TAU request to service eNB.

2b) described service eNB is found and the S1 interface fault of a described MME, in MME pond, reselects normal the 2nd MME and serves, and a described TAU request is forwarded to described the 2nd MME.

2c) described the 2nd MME determines that the TAU flow process that described user terminal is initiated is the periodicity TAU flow process that MME changes, and sends TAU to described UE and accepts message (as the 2c-1 in figure); Or described the 2nd MME determines that the TAU flow process that described user terminal is initiated is the periodicity TAU flow process that MME changes, and sends TAU refuse information (as the 2c-2 in figure) to described UE, thereby finishes current periodicity TAU flow process.Wherein, described TAU refuse information is carried the cause value of the EMM login state that does not change UE, for example: conditional IE error.

2d) described the 2nd MME sends the release command of UE context to described service eNB, to discharge the S1 interface between described service eNB.Wherein, cause specific value is carried in the release command of described UE context: Load Balancing TAU Required.

2e) described service eNB is notified described UE by radio resource control (Radio Resource Control, RRC) release message by above-mentioned cause value.

2f) described UE receives after the message of carrying above-mentioned cause value, initiates the TA/LA position renewal of combining thereby send the 2nd TAU request to described service eNB.

2g) described the 2nd TAU request is sent to described the 2nd MME by described service eNB.

2h) described the 2nd MME carries out position update flow, and concrete steps please refer to related protocol, and the present invention does not limit this.

2i) described the 2nd MME sends position updating request to MSC, to carry out position renewal.

2j) described MSC sends position renewal to described the 2nd MME and accepts message, sets up the SGs interface conjunctionn between described MSC and described the 2nd MME.

Subsequent step repeats no more herein.

The availability that can ensure CSFB user speech phone and short message service embodiment illustrated in fig. 2.

Fig. 3 is according to the schematic flow sheet of the MME pond scene speech business keeping method of an embodiment of the present invention, with reference to Fig. 3, supports SRVCC ability as example taking user terminal, and the method comprises:

3a-3e) please refer to embodiment illustrated in fig. 2 in for the description of step 2a to 2e.

3f) described UE receives after the RRC release message that carries cause value, thereby send the 2nd TAU request to described service eNB and initiate the TAU that TA changes, described the 2nd TAU carries user's SRVCC relevant information, such as: MS Classmark2, MS Classmark3 and Support Code etc.

3g) described the 2nd TAU request is sent to described the 2nd MME by described service eNB.

3h) please refer to embodiment illustrated in fig. 2 in for the description of step 2h.

Subsequent step repeats no more herein.

The continuity that can ensure SRVCC user speech telephone service embodiment illustrated in fig. 3.

Fig. 4 is that with reference to Fig. 4, the method comprises according to the schematic flow sheet of the MME pond scene speech business keeping method of an embodiment of the present invention:

4a-4b) please refer to embodiment illustrated in fig. 2 in for the description of step 2a-2b.

4c) described the 2nd MME determines that the TAU flow process that described user terminal is initiated is the periodicity TAU flow process that MME changes, and sends context request to ask the contextual information of described user terminal to a described MME.

4d) a described MME receives the context response that sends the contextual information that comprises described user terminal after described context request to described the 2nd MME, described context response also comprises: the SRVCC relevant information of described user terminal, or the CSFB combined registering information of described user terminal.

4e) described the 2nd MME sends and upgrades position requests to carry out position renewal to home subscriber server, optionally, in the time of SRVCC relevant information that described context response comprises described user terminal, described the 2nd MME preserves the SRVCC relevant information of described user terminal so that described the 2nd MME carries out SRVCC processing.

4f) home subscriber server sends canceling position request to a described MME.

4g) a described MME sends canceling position response to home subscriber server.

4h) described home subscriber server is replied to described the 2nd MME transmission renewal position.

Detailed description for 4f-4h please refer to prior art, does not describe in detail herein.

If the CSFB combined registering information that described context response comprises described user terminal, also needs to perform step 4i and 4j, otherwise without execution step 4i and 4j.

4i-4j) please refer to embodiment illustrated in fig. 2 in for the description of step 2i-2j.

Subsequent step repeats no more.

Fig. 5 is that with reference to Fig. 5, the method comprises according to the schematic flow sheet of the MME pond scene speech business keeping method of an embodiment of the present invention:

5a-5b) please refer to embodiment illustrated in fig. 2 in for the explanation of step 2a-2b.

5c) described the 2nd MME determines that described user terminal is not registered user's terminal of described the 2nd MME, send TAU refuse information to described user terminal, described TAU refuse information carries the Reason For Denial value (for example: Implicitly detached(implicit detach) that the login state of described user terminal is changed, or UE identity cannot be derived by the network(network side can not obtain user ID)) the EMM state of described UE is changed.

5d) described user terminal receives after described TAU refuse information, initiate to adhere to request to described the 2nd MME, described in adhere to CSFB that request carries described user terminal and combine and adhere to information, or, the SRVCC relevant information of described user terminal.Described adhering to asks to be pass-through to described the 2nd MME, i.e. step 5e via service eNB.

5e) described service eNB is adhered to request described in receiving, and adheres to request so that described the 2nd MME carries out the processing of adhering to of described user terminal described in sending to described the 2nd MME.

5f) normal attachment flow, please refer to prior art, does not repeat herein.

Fig. 6 is the schematic flow sheet of the method that reports according to the Mobility Management Entity pond scene ability information of user terminal of an embodiment of the present invention, and with reference to Fig. 6, the method comprises:

600: user terminal is initiated a TAU request, former serving MME the one MME of described user terminal breaks down, a described TAU request is received by the 2nd MME, and described the 2nd MME is the serving MME after a described MME fault, and a described MME and the 2nd MME are deployed in same MME pond.

Optionally, a described TAU asks the ability information of not carrying described user terminal, for example: a described TAU request can be periodically TAU request.

602: after the tracing section updating of initiating in a described TAU request finishes, send the message of the ability information that comprises described user terminal to described the 2nd MME, so that described the 2nd MME obtains the ability information of described user terminal, the ability information of described user terminal comprises: the SRVCC relevant information of described user terminal, or the CSFB ability information of described user terminal.

The method that the ability information of user terminal that the present embodiment provides reports, can be in the time of a described MME fault, the ability information of described user terminal is sent to described the 2nd MME by corresponding message, so that described the 2nd MME obtains the ability information of described user terminal in time, the availability of circuit domain business and the sustainability of speech business are ensured.

Optionally, 602 can comprise following several implementation:

Implementation one comprises the steps:

1) described user terminal receives described the 2nd MME and accepts message or TAU refuse information at the TAU that receives transmission after a described TAU request, and wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged.

2) described user terminal receives the radio resource control RRC release message that carries cause specific value that evolved base station eNB sends, wherein, described eNB receive described the 2nd MME send the user's context release command of carrying described cause specific value after send described RRC release message to described user terminal.

3) described user terminal is initiated the 2nd TAU request to described the 2nd MME, and described the 2nd TAU asks the ability information of carrying described user terminal.

Exemplary, the performed operation of described user terminal in implementation one please refer to Fig. 2 or embodiment illustrated in fig. 3 in corresponding description.

Implementation two comprises the steps:

1) described user terminal receives described the 2nd MME and is receiving the TAU refuse information sending after a described TAU request, and described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is changed.

2) initiate to adhere to request so that described the 2nd MME carries out the processing of adhering to of described user terminal to described the 2nd MME, described in adhere to CSFB that request carries described user terminal and combine and adhere to information, or, the SRVCC relevant information of described user terminal.

Exemplary, the performed operation of described user terminal in implementation two please refer to the corresponding description in embodiment illustrated in fig. 5.

Fig. 7 is the schematic flow sheet of the method that reports according to the Mobility Management Entity pond scene ability information of user terminal of an embodiment of the present invention, and with reference to Fig. 7, the method comprises:

After within 700: the, a MME breaks down, receive that the 2nd MME sends for asking the context request of contextual information of user terminal, the former serving MME that a described MME is described user terminal, described the 2nd MME is the serving MME after a described MME breaks down.

702: send context response to described the 2nd MME, the contextual information that described context response comprises described user terminal and ability information, the ability information of described user terminal comprises: the SRVCC relevant information of described user terminal, or the CSFB ability information of described user terminal.

Optionally, in a kind of implementation of the present embodiment, the CSFB ability information of described user terminal comprises: the CSFB combined registering information of described user terminal.

Exemplary, in a kind of implementation of the present embodiment, the performed operation of a described MME please refer to the corresponding description in the embodiment of Fig. 4 institute.

Fig. 8 is according to the structural representation of the MME of an embodiment of the present invention, and with reference to Fig. 8, MME80 comprises:

The first receiving element 81, for when the MME fault in Mobility Management Entity MME pond, receives the first tracing section updating TAU request that user terminal sends, the former serving MME that a described MME is described user terminal.

Optionally, in a kind of implementation of the present embodiment, a described TAU asks the ability information of not carrying described user terminal, and a described TAU request comprises: periodically TAU request.

The first processing unit 82, for the tracing section updating process of initiating in a described TAU request, obtain the ability information of described user terminal from a described MME, or, after the tracing section updating of initiating in a described TAU request finishes, obtain the ability information of described user terminal from described user terminal, the ability information of described user terminal comprises: the Single Radio Voice Call Continuity SRVCC relevant information of described user terminal, or the circuit switching fall-back CSFB ability information of described user terminal.

Optionally, MME80 can also comprise judging unit 83, for receiving at the first receiving element 81 after a described TAU request, judges whether described user terminal is registered user's terminal of described MME, if not, trigger described the first processing unit 82.

The MME80 that the present embodiment provides can, the in the situation that of a described MME fault, obtain the ability information of described user terminal, has avoided MME80 cannot obtain the problem of user capability information.Thereby make MME80 to carry out SRVCC processing or CSFB processing according to the ability of described user terminal, ensured the availability of circuit domain business and the sustainability of speech business.

With reference to Fig. 9, Fig. 9 is according to the structural representation of the MME of an embodiment of the present invention, and wherein, the first processing unit 92 comprises:

First sends subelement 922, for sending context request to ask the contextual information of described user terminal to a described MME;

First receives subelement 924, for receiving a described MME in the context response that receives the contextual information that comprises described user terminal sending after described context request, described context response also comprises: the SRVCC relevant information of described user terminal, or the CSFB combined registering information of described user terminal.

Optionally, MME90 except comprising the first receiving element 91, the first processing unit 92 and judging unit 93 (wherein, although the label for the first receiving element and judging unit in specification is different, but function is identical, all descriptions in embodiment as shown in Figure 8, below special declaration no longer), also comprise:

Memory cell 94, for the ability information of storing described user terminal, for example: in the time that the contextual information in described context response comprises the SRVCC relevant information of described user terminal, store the SRVCC relevant information of described user terminal so that described MME carries out SRVCC processing.

The second processing unit 95, for sending and upgrade position requests to carry out position renewal to home subscriber server.

Or optional, MME90, except comprising the first receiving element 91, the first processing unit 92 and judging unit 93, also comprises:

The 3rd processing unit 96, when comprise the CSFB combined registering information of described user terminal when the contextual information of described context response, sends and upgrades position requests to carry out position renewal to described home subscriber server;

Fourth processing unit 97, for sending position updating request to carry out the renewal of SGs interface to mobile switching centre.

With reference to Figure 10, Figure 10 is according to the structural representation of the MME of an embodiment of the present invention, and wherein, the first processing unit 102 comprises:

Second sends subelement 1022, accepts message, or send TAU refuse information to described user terminal for sending TAU to described user terminal, and wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged;

The 3rd sends subelement 1024, for send the user terminal context release command that carries cause specific value to described eNB, so that described cause specific value is notified described user terminal by described eNB, thereby make described user terminal initiate the 2nd TAU request to described MME, described the 2nd TAU asks the ability information of carrying described user terminal;

Second receives subelement 1026, thereby obtains the ability information of described user terminal for receiving described the 2nd TAU request.

Optionally, MME100, except comprising the first receiving element 101, the first processing unit 102 and judging unit 103, also comprises:

The first transmitting element 104, for sending context request to ask the contextual information of described user terminal to a described MME;

The second receiving element 105, is receiving for receiving a described MME context response that comprises described contextual information sending after described context request;

The 5th processing unit 106, for sending and upgrade position requests to carry out position renewal to home subscriber server.

Further alternative, MME100 also comprises:

The 6th processing unit 107, for sending position updating request to carry out the renewal of SGs interface to mobile switching centre.

Figure 11 is according to the structural representation of the MME of an embodiment of the present invention, and with reference to Figure 11, MME110 comprises the first receiving element 111, the first processing unit 112 and judging unit 113, and wherein, described the first processing unit 112 comprises:

The 4th sends subelement 1122, for sending TAU refuse information so that described user terminal initiates to adhere to request to the 2nd MME to described user terminal, describedly adhere to CSFB that request carries described user terminal and combine and adhere to information, or carry the SRVCC relevant information of described user terminal.

The 3rd receives subelement 1124, described in receiving, adheres to request;

Process subelement 1126, for carrying out the processing of adhering to of described user terminal.

Figure 12 is according to the structural representation of the MME of an embodiment of the present invention, and with reference to Figure 12, MME120 comprises: transmitter 121, receiver 122, memory 123 and the processor 124 being connected with transmitter 121, receiver 122 and memory 123 respectively.Wherein, in memory 123, store various programs or application, to call corresponding program or application by processor 124, to carry out following operation:

In the time of a MME fault in Mobility Management Entity MME pond, receive the first tracing section updating TAU request that user terminal is initiated, the former serving MME that a described MME is described user terminal by receiver 122;

Obtain the ability information of described user terminal, comprise: in the tracing section updating process of initiating in a described TAU request, obtain the ability information of described user terminal from a described MME by receiver 122, or, after the tracing section updating of initiating in a described TAU request finishes, obtain the ability information of described user terminal from described user terminal by receiver 122, the ability information of described user terminal comprises: the Single Radio Voice Call Continuity SRVCC relevant information of described user terminal, or the circuit switching fall-back CSFB ability information of described user terminal.

Optionally, processor 124, for receiving by receiver 122 after a described TAU request, judges whether described user terminal is registered user's terminal of described MME, if not, carry out the operation of the ability information of obtaining described user terminal.

Optionally, processor 124 is for sending context request to ask the contextual information of described user terminal by transmitter 121 to a described MME, receive a described MME in the context response that receives the contextual information that comprises described user terminal sending after described context request by receiver 122, described context response also comprises: the SRVCC relevant information of described user terminal, or the CSFB combined registering information of described user terminal.

Further alternative, processor 124 also when comprising the SRVCC relevant information of described user terminal when the contextual information of described context response, is stored to memory 123 so that carry out SRVCC processing by the SRVCC relevant information of described user terminal; Processor 124 is also for being sent and upgrade position requests and carry out corresponding position and upgrade processing to home subscriber server by transmitter 121.

Or, further alternative, processor 124 is also when comprising the CSFB combined registering information of described user terminal when the contextual information of described context response, send and upgrade position requests to carry out position renewal to home subscriber server by transmitter 121, send position updating request to carry out the renewal of SGs interface by transmitter 121 to mobile switching centre.

Optionally, processor 124 is accepted message for sending TAU by transmitter 121 to described user terminal, or send TAU refuse information to described user terminal, wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged; Send the user terminal context release command that carries cause specific value to evolved base station eNB by transmitter 121, so that described cause specific value is notified described user terminal by described eNB, thereby make described user terminal initiate the 2nd TAU request to described MME, described the 2nd TAU asks the ability information of carrying described user terminal; Thereby receive the 2nd TAU request and obtain the ability information of described user terminal by receiver 122.

Further alternative, processor 124 is also for sending context request to ask the contextual information of described user terminal by transmitter 121 to a described MME; Receive a described MME by receiver 122 and receiving the context response that comprises described contextual information sending after described context request; Send and upgrade position requests to carry out position renewal to home subscriber server by transmitter 121.Further, processor 124 also upgrades processing for sending position updating request by transmitter 121 to mobile switching centre to carry out SGs interface.

Optionally, processor 124 is for sending TAU refuse information so that described user terminal initiates to adhere to request to described the 2nd MME by transmitter 121 to described user terminal, describedly adhere to CSFB that request carries described user terminal and combine and adhere to information, or carry the SRVCC relevant information of described user terminal; Described in receiving by receiver 122, adhere to the processing of adhering to of asking and carrying out described user terminal.

Figure 13 A is according to the structural representation of the ability information reporting device of the user terminal of an embodiment of the present invention, and this ability information reporting device 130 can be arranged in Access Network side, for example, be arranged on described user terminal, comprising:

Transmitting element 131, be used for sending a TAU request, former serving MME the one MME of described user terminal breaks down, and a described TAU request is received by the 2nd MME, described the 2nd MME is the serving MME after a described MME fault, and a described MME and the 2nd MME are deployed in same MME pond.

The first processing unit 132, after finishing for the tracing section updating of initiating in a described TAU request, send the message of the ability information that comprises described user terminal to described the 2nd MME, so that described the 2nd MME obtains the ability information of described user terminal, the ability information of described user terminal comprises: the SRVCC relevant information of described user terminal, or the CSFB ability information of described user terminal.

The ability information reporting device 130 that the present embodiment provides can be in the time of a described MME fault, the ability information of described user terminal is sent to described the 2nd MME by corresponding message, so that described the 2nd MME obtains the ability information of described user terminal in time, the availability of circuit domain business and the sustainability of speech business are ensured.

Optionally, in a kind of implementation of the present embodiment, with reference to Figure 13 B, the first processing unit 132 comprises:

First receives subelement 1322, accept message or TAU refuse information for receiving described the 2nd MME at the TAU that receives transmission after a described TAU request, wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged.

Second receives subelement 1324, the radio resource control RRC release message that carries cause specific value sending for receiving evolved base station eNB, wherein, described eNB receive described the 2nd MME send the user's context release command of carrying described cause specific value after send described RRC release message to described user terminal.

First sends subelement 1326, and for initiate the 2nd TAU request to described the 2nd MME, described the 2nd TAU asks the ability information of carrying described user terminal.

Optionally, in a kind of implementation of the present embodiment, with reference to Figure 13 C, the first processing unit 132 comprises:

The 3rd receives subelement 1328, is receiving for receiving described the 2nd MME the TAU refuse information sending after a described TAU request, and described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is changed.

Second sends subelement 1330, for sending and adhere to request so that described the 2nd MME carries out the processing of adhering to of described user terminal to described the 2nd MME, describedly adhere to CSFB that request carries described user terminal and combine and adhere to information, or, the SRVCC relevant information of described user terminal.

Figure 14 is according to the structural representation of the ability information reporting device of the user terminal of an embodiment of the present invention, this ability information reporting device 140 can be arranged in Access Network side, for example be arranged on described user terminal, comprise: transmitter 141, receiver 142, memory 143 and the processor 144 being connected with transmitter 141, receiver 142 and memory 143 respectively.Wherein, memory 143 stores various programs or application, to call corresponding program or application by processor 144, to carry out following operation:

Processor 144 sends a TAU request by transmitter 141, former serving MME the one MME of user terminal breaks down, a described TAU request is received by the 2nd MME, described the 2nd MME is the serving MME after a described MME fault, and a described MME and the 2nd MME are deployed in same MME pond;

After the tracing section updating of initiating in a described TAU request finishes, processor 144 sends the message of the ability information that comprises described user terminal to described the 2nd MME by transmitter 141, so that described the 2nd MME obtains the ability information of described user terminal, the ability information of described user terminal comprises: the SRVCC relevant information of described user terminal, or the CSFB ability information of described user terminal.The message of the ability information that wherein, comprises described user terminal can be pass-through to described the 2nd MME via the service eNB of described user terminal.

Optionally, processor 144 is accepted message or TAU refuse information for receive described the 2nd MME by receiver 142 at the TAU that receives transmission after a described TAU request, wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged; Receive by receiver 142 the radio resource control RRC release message that carries cause specific value that eNB sends, wherein, described eNB receive described the 2nd MME send the user's context release command of carrying described cause specific value after send described RRC release message to described user terminal; Initiate the 2nd TAU request by transmitter 141 to described the 2nd MME, described the 2nd TAU asks the ability information of carrying described user terminal.

Optionally, processor 144 is receiving for receive described the 2nd MME by receiver 142 the TAU refuse information sending after a described TAU request, and described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is changed; Send and adhere to request so that described the 2nd MME carries out the processing of adhering to of described user terminal to described the 2nd MME by transmitter 141, described in adhere to CSFB that request carries described user terminal and combine and adhere to information, or, the SRVCC relevant information of described user terminal.

Figure 15 is according to the structural representation of the ability information reporting device of the user terminal of an embodiment of the present invention, and this ability information reporting device 150 can be arranged in core-network side, for example, be arranged on Mobility Management Entity, comprising:

Receiving element 151, for receive that the 2nd MME sends for asking the context request of contextual information of user terminal, serving MME after the former serving MME that described the 2nd MME is described user terminal breaks down, described ability information reporting device 150 is arranged in described former serving MME, and described former serving MME and the 2nd MME are deployed in same MME pond.

Transmitting element 152, for sending context response to described the 2nd MME, the contextual information that described context response comprises described user terminal and ability information, the ability information of described user terminal comprises: the SRVCC relevant information of described user terminal, or the CSFB ability information of described user terminal.

The ability information reporting device 150 that the present embodiment provides can be in the time of a described MME fault, the ability information of described user terminal is sent to described the 2nd MME by corresponding message, so that described the 2nd MME obtains the ability information of described user terminal in time, the availability of circuit domain business and the sustainability of speech business are ensured.

Figure 16 is according to the structural representation of the ability information reporting device of the user terminal of an embodiment of the present invention, this ability information reporting device 160 can be arranged in core-network side, for example be arranged on Mobility Management Entity, comprise: transmitter 161, receiver 162, memory 163 and the processor 164 being connected with transmitter 161, receiver 162 and memory 163 respectively.Wherein, memory 163 stores various programs or application, to call corresponding program or application by processor 164, to carry out following operation:

Processor 164 receive by receiver 162 that the 2nd MME sends for asking the context request of contextual information of user terminal, serving MME after the former serving MME that described the 2nd MME is described user terminal breaks down, described ability information reporting device 160 is arranged in described former serving MME, and described former serving MME and the 2nd MME are deployed in same MME pond;

Send context response by transmitter 161 to described the 2nd MME, the contextual information that described context response comprises described user terminal and ability information, the ability information of described user terminal comprises: the SRVCC relevant information of described user terminal, or the CSFB ability information of described user terminal.

Optionally, the CSFB ability information of described user terminal comprises: the CSFB combined registering information of described user terminal.

Figure 17 is according to the schematic diagram of the MME cell system of an embodiment of the present invention, and with reference to Figure 17, described MME cell system comprises: a MME171 and the 2nd MME172.Wherein, please refer to the corresponding description in any one illustrated embodiment in Fig. 8 to Figure 12 for the structure explanation of the 2nd MME172, do not repeat herein.Wherein, a described MME171 comprises ability information reporting device, for the explanation of described ability information reporting device please refer to Figure 15 or embodiment illustrated in fig. 16 in corresponding description, do not repeat herein.

Certainly, MME cell system can also comprise the interconnecting relation between other MME, eNB and each MME etc., and the present invention does not limit this.MME cell system provided by the invention can in time be obtained by the 2nd MME172 the ability information of user terminal from a described MME171, and then ensures the sustainability of circuit domain business availability and speech business.

Figure 18 is according to the schematic diagram of the ability information of user terminal reporting system of an embodiment of the present invention, with reference to Figure 18, described system comprises: the 2nd MME181 and user terminal 182, wherein, structure explanation for the 2nd MME181 please refer to the corresponding description in any one illustrated embodiment in Fig. 8-12, does not repeat herein.Wherein, described user terminal 182 comprises ability information reporting device, please refer to the corresponding description in any one illustrated embodiment in Figure 13 A to Figure 14 for the explanation of described ability information reporting device, does not repeat herein.

The ability information of user terminal reporting system that the present embodiment provides, makes the 2nd MME181 in time to obtain its ability information by described user terminal 182, and then can ensure the sustainability of circuit domain business availability and speech business.

One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.

Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.

Claims

1. a Mobility Management Entity pond scene speech business keeping method, is characterized in that, comprising:

2. method according to claim 1, is characterized in that, a described TAU asks the ability information of not carrying described user terminal, and a described TAU request comprises: periodically TAU request.

3. method according to claim 1 and 2, is characterized in that, in the described tracing section updating process of initiating in a described TAU request, the ability information that described the 2nd MME obtains described user terminal from a described MME comprises:

Described the 2nd MME determines that described user terminal is not registered user's terminal of described the 2nd MME;

Send context request to ask the contextual information of described user terminal to a described MME;

Receive a described MME in the context response that receives the contextual information that comprises described user terminal sending after described context request, described context response also comprises: the SRVCC relevant information of described user terminal, or the CSFB combined registering information of described user terminal.

4. method according to claim 3, is characterized in that, described method also comprises:

In the time of SRVCC relevant information that described context response comprises described user terminal, described the 2nd MME preserves the SRVCC relevant information of described user terminal so that described the 2nd MME carries out SRVCC processing, and sends and upgrade position requests to carry out position renewal to home subscriber server; Or

In the time of CSFB combined registering information that described context response comprises described user terminal, described the 2nd MME sends and upgrades position requests to carry out position renewal to home subscriber server, and, send position updating request to carry out the renewal of SGs interface to mobile switching centre.

5. method according to claim 1 and 2, is characterized in that, after described tracing section updating of initiating in a described TAU request finishes, the ability information that described the 2nd MME obtains described user terminal from described user terminal comprises:

Send TAU to described user terminal and accept message, or send TAU refuse information to described user terminal, wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged;

Send the user terminal context release command that carries cause specific value to evolved base station eNB, so that described cause specific value is notified described user terminal by described eNB, thereby make described user terminal initiate the 2nd TAU request to described the 2nd MME, described the 2nd TAU asks the ability information of carrying described user terminal;

Thereby receive described the 2nd TAU request and obtain the ability information of described user terminal.

6. method according to claim 5, is characterized in that, described method also comprises:

Described the 2nd MME sends context request to ask the contextual information of described user terminal to a described MME;

Thereby receive a described MME and obtain described contextual information receiving the context response that comprises described contextual information sending after described context request;

Send and upgrade position requests to carry out position renewal to home subscriber server;

If described the 2nd TAU asks the CSFB ability information of carrying described user terminal, described method further comprises: send position updating request to carry out the renewal of SGs interface to mobile switching centre.

7. method as claimed in claim 1 or 2, is characterized in that, after described tracing section updating of initiating in a described TAU request finishes, the ability information that described the 2nd MME obtains described user terminal from described user terminal comprises:

Send TAU refuse information so that described user terminal initiates to adhere to request to described the 2nd MME to described user terminal, described in adhere to CSFB that request carries described user terminal and combine and adhere to information, or carry the SRVCC relevant information of described user terminal;

Described in reception, adhere to the processing of adhering to of asking and carrying out described user terminal.

8. the method that Mobility Management Entity pond scene ability information of user terminal reports, is characterized in that, comprising:

9. method according to claim 8, is characterized in that, a described TAU asks the ability information of not carrying described user terminal, and a described TAU request comprises: periodically TAU request.

10. method according to claim 8 or claim 9, is characterized in that, after described tracing section updating of initiating in a described TAU request finishes, the message that sends the ability information that comprises described user terminal to described the 2nd MME comprises:

Described user terminal receives described the 2nd MME and accepts message or TAU refuse information at the TAU that receives transmission after a described TAU request, and wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged;

Receive the radio resource control RRC release message that carries cause specific value that evolved base station eNB sends, wherein, described eNB receive described the 2nd MME send the user's context release command of carrying described cause specific value after send described RRC release message to described user terminal;

Initiate the 2nd TAU request to described the 2nd MME, described the 2nd TAU asks the ability information of carrying described user terminal.

11. methods according to claim 8 or claim 9, is characterized in that, after described tracing section updating of initiating in a described TAU request finishes, the message that sends the ability information that comprises described user terminal to described the 2nd MME comprises:

Described user terminal receives described the 2nd MME and is receiving the TAU refuse information sending after a described TAU request, and described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is changed;

Initiate to adhere to request so that described the 2nd MME carries out the processing of adhering to of described user terminal to described the 2nd MME, described in adhere to CSFB that request carries described user terminal and combine and adhere to information, or, the SRVCC relevant information of described user terminal.

12. 1 kinds of methods that Mobility Management Entity pond scene ability information of user terminal reports, is characterized in that, comprising:

After the one MME breaks down, receive that the 2nd MME sends for asking the context request of contextual information of user terminal, the former serving MME that a described MME is described user terminal, described the 2nd MME is the serving MME after a described MME breaks down, and a described MME and the 2nd MME are deployed in same MME pond;

13. methods according to claim 12, is characterized in that,

The CSFB ability information of described user terminal comprises: the CSFB combined registering information of described user terminal.

14. 1 kinds of Mobility Management Entity MME, is characterized in that, comprising:

15. MME according to claim 14, is characterized in that, a described TAU asks the ability information of not carrying described user terminal, and a described TAU request comprises: periodically TAU request.

16. MME as described in claims 14 or 15, is characterized in that, described MME also comprises:

Judging unit, for receiving at described the first receiving element after a described TAU request, judges whether described user terminal is registered user's terminal of described MME, if not, trigger described the first processing unit.

17. MME as claimed in claim 16, is characterized in that, described the first processing unit comprises:

First sends subelement, for sending context request to ask the contextual information of described user terminal to a described MME;

First receives subelement, for receiving a described MME in the context response that receives the contextual information that comprises described user terminal sending after described context request, described context response also comprises: the SRVCC relevant information of described user terminal, or the CSFB combined registering information of described user terminal.

18. MME as claimed in claim 17, is characterized in that, described MME also comprises:

Memory cell, when comprising the SRVCC relevant information of described user terminal when the contextual information of described context response, stores the SRVCC relevant information of described user terminal so that carry out SRVCC processing;

The second processing unit, for sending and upgrade position requests to carry out position renewal to home subscriber server.

19. MME as claimed in claim 17, is characterized in that, described MME also comprises:

The 3rd processing unit, when comprise the CSFB combined registering information of described user terminal when the contextual information of described context response, sends and upgrades position requests to carry out position renewal to home subscriber server;

Fourth processing unit, for sending position updating request to carry out the renewal of SGs interface to mobile switching centre.

20. MME as claimed in claim 16, is characterized in that, described the first processing unit comprises:

Second sends subelement, accepts message, or send TAU refuse information to described user terminal for sending TAU to described user terminal, and wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged;

The 3rd sends subelement, for send the user terminal context release command that carries cause specific value to evolved base station eNB, so that described cause specific value is notified described user terminal by described eNB, thereby make described user terminal initiate the 2nd TAU request to described MME, described the 2nd TAU asks the ability information of carrying described user terminal;

Second receives subelement, thereby obtains the ability information of described user terminal for receiving described the 2nd TAU request.

21. MME as claimed in claim 20, is characterized in that, described MME also comprises:

The first transmitting element, for sending context request to ask the contextual information of described user terminal to a described MME;

The second receiving element, is receiving for receiving a described MME context response that comprises described contextual information sending after described context request;

The 5th processing unit, for sending and upgrade position requests to carry out position renewal to home subscriber server.

22. MME as claimed in claim 21, is characterized in that, described MME also comprises:

The 6th processing unit, for sending position updating request to carry out the renewal of SGs interface to mobile switching centre.

23. MME as claimed in claim 16, is characterized in that, described the first processing unit comprises:

The 4th sends subelement, for sending TAU refuse information to described user terminal so that described user terminal initiates to adhere to request to described the 2nd MME, describedly adhere to CSFB that request carries described user terminal and combine and adhere to information, or carry the SRVCC relevant information of described user terminal;

The 3rd receives subelement, described in receiving, adheres to request;

Process subelement, for carrying out the processing of adhering to of described user terminal.

The ability information reporting device of 24. 1 kinds of user terminals, is characterized in that, comprising:

25. devices according to claim 24, is characterized in that, a described TAU asks the ability information of not carrying described user terminal, and a described TAU request comprises: periodically TAU request.

26. according to the device described in claim 24 or 25, it is characterized in that, described the first processing unit comprises:

First receives subelement, accept message or TAU refuse information for receiving described the 2nd MME at the TAU that receives transmission after a described TAU request, wherein, described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is remained unchanged;

Second receives subelement, the radio resource control RRC release message that carries cause specific value sending for receiving evolved base station eNB, wherein, described eNB receive described the 2nd MME send the user's context release command of carrying described cause specific value after send described RRC release message to described user terminal;

First sends subelement, and for initiate the 2nd TAU request to described the 2nd MME, described the 2nd TAU asks the ability information of carrying described user terminal.

27. according to the device described in claim 24 or 25, it is characterized in that, described the first processing unit comprises:

The 3rd receives subelement, is receiving for receiving described the 2nd MME the TAU refuse information sending after a described TAU request, and described TAU refuse information carries the Reason For Denial value that the login state of described user terminal is changed;

Second sends subelement, for sending and adhere to request so that described the 2nd MME carries out the processing of adhering to of described user terminal to described the 2nd MME, describedly adhere to CSFB that request carries described user terminal and combine and adhere to information, or, the SRVCC relevant information of described user terminal.

The ability information reporting device of 28. 1 kinds of user terminals, is characterized in that, comprising:

29. devices according to claim 28, is characterized in that,

30. 1 kinds of Mobility Management Entity cell systems, it is characterized in that, described system comprises: a MME and the 2nd MME, wherein, described the 2nd MME is the MME as described in any one in claim 14-23, and a described MME comprises the ability information reporting device as described in claim 28 or 29.

31. 1 kinds of ability information of user terminal reporting systems, it is characterized in that, described system comprises: the 2nd MME and user terminal, wherein, described the 2nd MME is the MME as described in any one in claim 14-23, and described user terminal comprises the ability information reporting device as described in any one in claim 24-27.