CN103841545B - The method and device that a kind of MME ponds scene ability information reports - Google Patents

Abstract

The embodiment of the invention discloses a kind of mobility management entity MME ponds scene speech business keeping method, a kind of method reported the embodiment of the invention also discloses MME ponds scene user terminal UE ability informations and corresponding device.Wherein, institute's voice traffic keeping method includes：When the first MME failures in MME ponds, the 2nd MME in MME ponds receives the first tracing section updating TAU requests of UE initiations, and the former service MME that the first MME is UE, the 2nd MME is the service MME after the first MME failures；During the tracing section updating that the first TAU requests are initiated, the 2nd MME obtains UE ability information from the first MME, or, after the tracing section updating that the first TAU requests are initiated terminates, the 2nd MME obtains UE ability information from UE, and UE ability information includes：UE Single Radio Voice Call Continuity SRVCC relevant informations, or UE circuit switching fall-back CSFB ability informations.Using the present invention, UE ability information can be obtained in time, ensures UE circuit domain business availability and the sustainability of speech business.

Description

The method and device that a kind of MME ponds scene ability information reports

Technical field

The present invention relates to communication technical field, more particularly to the method and device that a kind of MME ponds scene ability information reports.

Background technology

In 4G（4rd-generation）In network, protocol definition packet switch（Packet Switched, PS）Net Network.But circuit switching in actual life（Circuit Switched, CS）Business is essential, so third generation affiliate Plan (The3rd Generation Partnership Project, 3GPP) agreement defines two kinds of CS business solutions, It is circuit switching fall-back respectively（Circuit Switched Fallback, CSFB）With long-term evolving network speech business （Voice over Long Term Evolution, VoLTE）.In CSFB schemes, user's combined registering to 4G networks, when with When family needs to carry out voice telephone service, the user is actively fallen back to 2/3G networks by notice network side by the network equipment, so as to Allow users to carry out voice telephone service using traditional 2/3G networks.In VoLTE schemes, user is directly in LTE nets Network passes through Long Term Evolution（Long Term Evolution, LTE）Carrying carries out voice call.But in VoLTE schemes, when with , it is necessary to pass through Single Radio Voice Call Continuity when family is from 4G Network Mobilities to 2/3G networks（Single Radio Voice Call Continuity, SRVCC）Technology keeps the continuity of audio call.In SRVCC technologies, user is in 4G nets When being conversed under network using VoLTE, if user is moved to 2/3G networks, completion PS is coordinated to arrive by network side and terminal CS switching, and carry out voice call using traditional CS equipment.

In 4G deployment, mobility management entity can be disposed in order to increase network reliability （MobilityManagement Entity, MME）Pond.MME ponds refer to the evolved base station in the area of pond, alternatively referred to as evolved Node B（Evolved Node B, eNB）It is connected on multiple MME, works as user terminal（UserEquipment, UE）In the area of pond The region that the MME serviced when mobile does not change, interconnect entirely between the MME in the area of eNB and MME ponds in MME ponds.

In prior art one, User support SRVCC abilities, and voice call is carried out by VoLTE.In user terminal Can be GL, such as the information such as MS Classmark2, MS Classmark3 and Supported Codec when networking Network side is notified, as above cell is the necessary information for carrying out SRVCC.As service MME（Hereinafter referred to as the first MME）Kimonos Be engaged in eNB between S1 interface faults when, UE initiate periodicity tracing section updating（Tracking Area Update, TAU）Flow. Specifically：UE sends messages to service eNB first, and tells service eNB：The core network nodes information that UE last time is accessed is first MME；The interface fault between eNB discoveries and the first MME is serviced, so service eNB selects one for UE in the area of MME ponds again Normal new MME（Hereinafter referred to as the 2nd MME）Serviced, forward the message to the 2nd MME；2nd MME is received after message The TAU flows of MME changes are the discovery that, so finding the MME of core net node the first that user's last time registers, are obtained from the first MME The contextual information at family is taken, meanwhile, the 2nd MME is to home subscriber server（Home Subscriber Server, HSS）Enter Row location update operations, HSS also send user log off operation to the first MME；Periodicity TAU flows terminate.

In prior art one, in the periodicity TAU flows that core net node should not change, core net node occurs Change（Periodicity TAU is a kind of special TAU flows, when UE enter evolved packet system connectivity management idle condition it Afterwards, periodicity TAU timers start timing；After UE enters evolved packet system connectivity management connection status, timer Stop timing；After when the timer times out, UE can actively initiate periodicity TAU flows.Under normal circumstances, for periodically TAU flows, core net node do not change）.When needing to carry out SRVCC processing, the 2nd MME can refuse to handle, and then lead Speech business is caused to interrupt.

In prior art two, User support CSFB abilities, and need to carry out voice call by CSFB technologies.It is so first First user can carry out joint attachment, combine in the case where servicing eNB and be registered to the first MME and mobile switching centre（Mobile Switching Center, MSC）On, now the first MME and MSC is normal on UE SGs interface conjunctionns, and user is in the scene Under can carry out voice call and short message service.When the S1 interface faults between the first MME and service eNB, UE initiates week Phase property TAU flows, process step is similar to the process step in prior art one, does not repeat herein.

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

The content of the invention

Technical problem to be solved of the embodiment of the present invention is, there is provided the side that a kind of MME ponds scene ability information reports Method and device, for solving in the prior art, when servicing MME failures, speech business interruption or speech business and short message The disabled problem of business.

In order to solve the above-mentioned technical problem, a kind of first aspect, there is provided mobility management entity pond scene speech business Keeping method, including：

When the first MME failures in mobility management entity MME ponds, the 2nd MME in the MME ponds receives user The first tracing section updating TAU requests that terminal is initiated, the first MME are the former service MME of the user terminal, described second MME is the service MME after the first MME failures；

During the tracing section updating that the first TAU requests are initiated, the 2nd MME obtains from the first MME The ability information of the user terminal, or, after the tracing section updating that the first TAU requests are initiated terminates, described the Two MME obtain the ability information of the user terminal from the user terminal, and the ability information of the user terminal includes：It is described The Single Radio Voice Call Continuity SRVCC relevant informations of user terminal, or the circuit switching fall-back of the user terminal CSFB ability informations.

As the first possible implementation of the first aspect, the first TAU requests do not carry the user The ability information of terminal, the first TAU requests include：Periodicity TAU is asked.

With reference to the possible implementation of the first of the first aspect or the first aspect, described first is additionally provided Second of possible implementation of aspect, during the tracing section updating initiated in the first TAU requests, described the The ability information that two MME obtain the user terminal from the first MME includes：

2nd MME determines that the user terminal is not registered user's terminal of the 2nd MME；To described first MME sends context request to ask the contextual information of the user terminal；The first MME is received to receive on described The context response of the contextual information comprising the user terminal sent after hereafter asking, the context response are also wrapped Contain：The SRVCC relevant informations of the user terminal, or the CSFB combined registering information of the user terminal.

With reference to second of possible implementation of the first aspect, the third for additionally providing the first aspect can The implementation of energy, methods described also include：

When the context response includes the SRVCC relevant informations of the user terminal, described in the 2nd MME preservations The SRVCC relevant informations of user terminal carry out SRVCC processing in order to the 2nd MME, and are sent to home subscriber server More new position request is to carry out location updating；Or, when the context response includes the CSFB combined registerings of the user terminal During information, the 2nd MME sends more new position request to carry out location updating to home subscriber server, and, to movement Switching centre sends position updating request to carry out SGs interface renewals.

With reference to the possible implementation of the first of the first aspect or the first aspect, described first is additionally provided 4th kind of possible implementation of aspect, it is described after the tracing section updating initiated in the first TAU requests terminates The ability information that 2nd MME obtains the user terminal from the user terminal includes：

2nd MME determines that the user terminal is not registered user's terminal of the 2nd MME；It is whole to the user End sends TAU received messages, or sends TAU refuse informations to the user terminal, wherein, the TAU refuse informations carry The login state of the user terminal is set to keep constant Reason For Denial value；Sent to evolved base station eNB and carry special original Because of the user terminal context release command of value, so that the cause specific value is notified the user terminal by the eNB, so as to The user terminal is set to initiate the 2nd TAU requests to the 2nd MME, the 2nd TAU requests carry the user terminal Ability information；The 2nd TAU requests are received so as to obtain the ability information of the user terminal.

With reference to the 4th kind of possible implementation of the first aspect, additionally provide the first aspect the 5th kind can The implementation of energy, methods described also include：

2nd MME sends context request to ask the contextual information of the user terminal to the first MME； Receive the context response comprising the contextual information that the first MME sends after the context request is received from And obtain the contextual information；More new position request is sent to home subscriber server to carry out location updating；It is if described 2nd TAU requests carry the CSFB ability informations of the user terminal, then methods described further comprises：To mobile switching centre Position updating request is sent to carry out SGs interface renewals.

With reference to the possible implementation of the first of the first aspect or the first aspect, described first is additionally provided 6th kind of possible implementation of aspect, it is described after the tracing section updating initiated in the first TAU requests terminates The ability information that 2nd MME obtains the user terminal from the user terminal includes：

2nd MME determines that the user terminal is not registered user's terminal of the 2nd MME；It is whole to the user End sends TAU refuse informations so that the user terminal initiates attach request to the 2nd MME, and the attach request carries institute The CSFB joint attachment information of user terminal is stated, or carries the SRVCC relevant informations of the user terminal；Receiving the attachment please Ask and carry out the attachment processing of the user terminal.

Second aspect, there is provided a kind of method that mobility management entity pond scene ability information of user terminal reports, bag Include：

User terminal initiates the first TAU requests, and the former service MME of MME the first of the user terminal break down, and described the One TAU request by the 2nd MME receive, the 2nd MME be the first MME failures after service MME, the first MME and 2nd MME is deployed in same MME ponds；

After the tracing section updating that the first TAU requests are initiated terminates, sent to the 2nd MME and include the user The message of the ability information of terminal, so that the 2nd MME obtains the ability information of the user terminal, the user terminal Ability information includes：The SRVCC relevant informations of the user terminal, or the CSFB ability informations of the user terminal.

As the first possible implementation of the second aspect, the first TAU requests do not carry the user The ability information of terminal, the first TAU requests include：Periodicity TAU is asked.

With reference to the possible implementation of the first of the second aspect or the second aspect, described second is additionally provided Second of possible implementation of aspect, after the tracing section updating initiated in the first TAU requests terminates, to described The message that 2nd MME sends the ability information comprising the user terminal includes：

The user terminal receives the TAU received messages that the 2nd MME is sent after the first TAU requests are received Or TAU refuse informations, wherein, the TAU refuse informations, which carry, makes the login state holding of the user terminal is constant to refuse Exhausted cause value；The radio resource control RRC release messages for the carrying cause specific value that evolved base station eNB is sent are received, Wherein, it is backward to receive the user's context release command for carrying the cause specific value that the 2nd MME is sent by the eNB The user terminal sends the RRC release messages；The 2nd TAU requests, the 2nd TAU requests are initiated to the 2nd MME Carry the ability information of the user terminal.

With reference to the possible implementation of the first of the second aspect or the second aspect, described second is additionally provided The third possible implementation of aspect, after the tracing section updating initiated in the first TAU requests terminates, to described The message that 2nd MME sends the ability information comprising the user terminal includes：

The user terminal receives the TAU refusals that the 2nd MME is sent after the first TAU requests are received and disappeared Breath, the TAU refuse informations carry the Reason For Denial value for changing the login state of the user terminal；To described second MME initiates attach request so that the attachment of the 2nd MME progress user terminal is handled, described in the attach request carrying The CSFB joint attachment information of user terminal, or, the SRVCC relevant informations of the user terminal.

The third aspect, there is provided a kind of method that mobility management entity pond scene ability information of user terminal reports, bag Include：

First MME receives the contextual information for being used to ask user terminal of the 2nd MME transmissions after breaking down Hereafter ask, the first MME is the former service MME of the user terminal, and the 2nd MME is that event occurs for the first MME Service MME after barrier；

Context response is sent to the 2nd MME, the context that the context response includes the user terminal is believed Breath and ability information, the ability information of the user terminal include：The SRVCC relevant informations of the user terminal, or the use The CSFB ability informations of family terminal.

As a kind of possible implementation of the third aspect, the CSFB ability informations of the user terminal include： The CSFB combined registering information of the user terminal.

Fourth aspect, there is provided a kind of mobility management entity MME, including：

First receiving unit, for when the first MME failures in mobility management entity MME ponds, receiving user terminal The the first tracing section updating TAU requests initiated, the first MME are the former service MME of the user terminal；

First processing units, for the first TAU request initiate tracing section updating during, from described first MME obtains the ability information of the user terminal, or, after the tracing section updating that the first TAU requests are initiated terminates, The ability information of the user terminal is obtained from the user terminal, the ability information of the user terminal includes：The user The Single Radio Voice Call Continuity SRVCC relevant informations of terminal, or the circuit switching fall-back CSFB energy of the user terminal Force information.

As the first possible implementation of the fourth aspect, the first TAU requests do not carry the user The ability information of terminal, the first TAU requests include：Periodicity TAU is asked.

With reference to the possible implementation of the first of the fourth aspect or the fourth aspect, the described 4th is additionally provided Second of possible implementation of aspect, the MME also include：Judging unit, for being received in first receiving unit After being asked to the first TAU, judge whether the user terminal is registered user's terminal of the MME, if it is not, then touching Send out first processing units described.

With reference to second of possible implementation of the fourth aspect, the third for additionally providing the fourth aspect can The implementation of energy, the first processing units include：

First transmission sub-unit, for sending context request to the first MME to ask the user terminal Context information；First receiving subelement, included for receive that the first MME sends after the context request is received The context response of the contextual information of the user terminal, the context response also include：The SRVCC of the user terminal Relevant information, or the CSFB combined registering information of the user terminal.

With reference to the third possible implementation of the fourth aspect, additionally provide the fourth aspect the 4th kind can The implementation of energy, the MME also include：

Memory cell, for including the SRVCC phases of the user terminal when the contextual information in the context response When closing information, the SRVCC relevant informations of the user terminal are stored in order to carry out SRVCC processing；Second processing unit, is used for More new position request is sent to home subscriber server to carry out location updating.

With reference to the third possible implementation of the fourth aspect, additionally provide the fourth aspect the 5th kind can The implementation of energy, the MME also include：

3rd processing unit, for including the CSFB of the user terminal when the contextual information in the context response During combined registering information, more new position request is sent to home subscriber server to carry out location updating；Fourth processing unit, use In sending position updating request to mobile switching centre to carry out SGs interface renewals.

With reference to second of possible implementation of the fourth aspect, additionally provide the fourth aspect the 6th kind can The implementation of energy, the first processing units include：

Second transmission sub-unit, for sending TAU received messages to the user terminal, or sent to the user terminal TAU refuse informations, wherein, the TAU refuse informations, which carry, makes the login state of the user terminal keep constant refusal Cause value；3rd transmission sub-unit, the user terminal context of cause specific value is carried for being sent to evolved base station eNB Release command, so that the cause specific value is notified the user terminal by the eNB, so that the user terminal is to described MME initiates the 2nd TAU requests, and the 2nd TAU requests carry the ability information of the user terminal；Second receiving subelement, Asked for receiving the 2nd TAU so as to obtain the ability information of the user terminal.

With reference to the 6th kind of possible implementation of the fourth aspect, additionally provide the fourth aspect the 7th kind can The implementation of energy, the MME also include：

First transmitting element, for asking the upper and lower of the user terminal to the first MME transmission context requests Literary information；Second receiving unit, for receiving that the first MME sends after the context request is received comprising described The context response of contextual information；5th processing unit, for sending more new position request to home subscriber server to enter Row location updating.

With reference to the 7th kind of possible implementation of the fourth aspect, additionally provide the fourth aspect the 8th kind can The implementation of energy, the MME also include：6th processing unit, for mobile switching centre send position updating request with Carry out SGs interface renewals.

With reference to second of possible implementation of the fourth aspect, additionally provide the fourth aspect the 9th kind can The implementation of energy, the first processing units include：

4th transmission sub-unit, for sending TAU refuse informations to the user terminal so that the user terminal is to institute State the 2nd MME and initiate attach request, the attach request carries the CSFB joint attachment information of the user terminal, or carries institute State the SRVCC relevant informations of user terminal；3rd receiving subelement, for receiving the attach request；Subelement is handled, is used for Carry out the attachment processing of the user terminal.

5th aspect, there is provided a kind of ability information reporting device of user terminal, including：

Transmitting element, for sending the first TAU requests, the former service MME of MME the first of the user terminal break down, First TAU request is received by the 2nd MME, and the 2nd MME is the service MME after the first MME failures, and described first MME and the 2nd MME are deployed in same MME ponds；

First processing units, after the tracing section updating for being initiated in the first TAU requests terminates, to described second MME sends the message of the ability information comprising the user terminal, so that the 2nd MME obtains the ability of the user terminal Information, the ability information of the user terminal include：The SRVCC relevant informations of the user terminal, or the user terminal CSFB ability informations.

As the first possible implementation of the described 5th aspect, the first TAU requests do not carry the user The ability information of terminal, the first TAU requests include：Periodicity TAU is asked.

With reference to the described 5th aspect or the first possible implementation of the 5th aspect, the described 5th is additionally provided Second of possible implementation of aspect, the first processing units include：

First receiving subelement, the TAU sent for receiving the 2nd MME after the first TAU requests are received Received message or TAU refuse informations, wherein, the TAU refuse informations, which carry, keeps the login state of the user terminal Constant Reason For Denial value；Second receiving subelement, the nothing of the carrying cause specific value for receiving evolved base station eNB transmissions Line Resource Control protocols RRC release messages, wherein, the eNB receives the carrying cause specific that the 2nd MME is sent After the user's context release command of value the RRC release messages are sent to the user terminal；First transmission sub-unit, is used for The 2nd TAU requests are initiated to the 2nd MME, the 2nd TAU requests carry the ability information of the user terminal.

With reference to the described 5th aspect or the first possible implementation of the 5th aspect, the described 5th is additionally provided The third possible implementation of aspect, the first processing units include：

3rd receiving subelement, the TAU sent for receiving the 2nd MME after the first TAU requests are received Refuse information, the TAU refuse informations carry the Reason For Denial value for changing the login state of the user terminal；Second hair Subelement is sent, at the attachment for carrying out the user terminal so as to the 2nd MME to the 2nd MME transmission attach requests Reason, the attach request carry the CSFB joint attachment information of the user terminal, or, the SRVCC correlations of the user terminal Information.

6th aspect, there is provided a kind of ability information reporting device of user terminal, including：

Receiving unit, please for receiving the context for being used to ask the contextual information of user terminal that the 2nd MME is sent Ask, the 2nd MME is the service MME after the former service MME of the user terminal breaks down, and is applied to install in the ability information Put and be arranged in the former service MME, the former service MME and the 2nd MME is deployed in same MME ponds；

Transmitting element, for sending context response to the 2nd MME, it is whole that the context response includes the user The contextual information and ability information at end, the ability information of the user terminal include：The related letters of the SRVCC of the user terminal Breath, or the CSFB ability informations of the user terminal.

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

7th aspect, there is provided a kind of mobility management entity cell system, including：First MME and the 2nd MME, wherein, institute The MME that the 2nd MME is provided by fourth aspect of the embodiment of the present invention is stated, the first MME includes the side of the embodiment of the present invention the 6th The ability information reporting device that face is provided.

Eighth aspect, there is provided a kind of ability information of user terminal reporting system, including：2nd MME and user terminal, its In, MME that the 2nd MME is provided by fourth aspect of the embodiment of the present invention, the user terminal includes the embodiment of the present invention The ability information reporting device that 5th aspect is provided.

Implement the embodiment of the present invention, have the advantages that：In the case where the first MME breaks down, the 2nd MME can The ability information of user terminal is obtained during the TAU initiated with the first TAU requests from the first MME, or in the first TAU The TAU of initiation obtains the ability information of user terminal from user terminal after terminating, and then can be according to the ability of user terminal Information carries out SRVCC processing or CSFB processing, so as to ensure the circuit domain business availability of user terminal and speech business Sustainability.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also To obtain other accompanying drawings according to these accompanying drawings.

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

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

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

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

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

Fig. 6 is reported according to the mobility management entity pond scene ability information of user terminal of an embodiment of the present invention The schematic flow sheet of method；

Fig. 7 is reported according to the mobility management entity pond scene ability information of user terminal of an embodiment of the present invention The schematic flow sheet of method；

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

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

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

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

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

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

Figure 13 B are the first processing units according to the ability information reporting device of the user terminal of an embodiment of the present invention Structural representation；

Figure 13 C are the first processing units according to the ability information reporting device of the user terminal of an embodiment of the present invention Structural representation；

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

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

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

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

Figure 18 is the schematic diagram according to 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 carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

Fig. 1 is according to the schematic flow sheet of the MME ponds scene speech business keeping method of an embodiment of the present invention, reference Fig. 1, this method include：

100：When the first MME failures in mobility management entity MME ponds, the 2nd MME in the MME ponds is received The first tracing section updating TAU requests that user terminal is sent, the first MME is the former service MME of the user terminal, described 2nd MME is the service MME after the first MME failures.

Wherein, after the service eNB of the user terminal receives the first TAU requests that the user terminal is sent, It was found that the S1 interface faults between the eNB and the first MME, then be that the user terminal reappears choosing in the MME ponds Take a normal MME（In the present embodiment, i.e., described 2nd MME）, and to be pass-through to this normal by the first TAU requests MME。

Optionally, the first TAU requests do not carry the ability information of the user terminal, the first TAU request bags Include：Periodicity TAU is asked.

102：During the tracing section updating that the first TAU requests are initiated, the 2nd MME is from the first MME The ability information of the user terminal is obtained, or, after the tracing section updating that the first TAU requests are initiated terminates, institute The ability information that the 2nd MME obtains the user terminal from the user terminal is stated, the ability information of the user terminal includes： The Single Radio Voice Call Continuity SRVCC relevant informations of the user terminal, or the circuit switching of the user terminal are returned Fall CSFB ability informations.

Wherein, the ability information of the user terminal can embody the user terminal support CSFB abilities or support SRVCC abilities.Optionally, the SRVCC relevant informations of the user terminal include：SRVCC ability informations, MS Classmark2, MS Classmark3 and Supported Codec information.Optionally, the circuit switching fall-back CSFB abilities of the user terminal Information includes：CSFB combined registerings information or CSFB joint attachment information etc..

In the method that the present embodiment is provided, when the first MME breaks down, the 2nd MME can ask in the first TAU During the TAU for asking initiation, or the first TAU request initiate TAU terminate after obtain user terminal ability information. When avoiding the first MME and breaking down, the problem of the 2nd MME can not obtain UE ability information, and then circuit domain can be ensured The availability of business and the sustainability of speech business.

Optionally, in a kind of implementation of the present embodiment, the first TAU requests are received in the 2nd MME Afterwards, the 2nd MME determines that the user terminal is not registered user's terminal of the 2nd MME（For example, according to described first The Globally Unique MME Identifier carried in TAU requests is judged）, then it is described to ask to send context request to the first MME The contextual information of user terminal；Receive that the first MME sends after the context request is received includes the use The context response of the contextual information of family terminal, the context response also include：The related letters of the SRVCC of the user terminal Breath, or the CSFB combined registering information of the user terminal（Such as：Location Area Identification（Location Area ID, LAI）With visit Visit location register number（Visitor Location Register Number, VLR Number））.

Optionally, in this implementation, when the context response includes the SRVCC relevant informations of the user terminal When, the 2nd MME preserves the SRVCC relevant informations of the user terminal in order to which the 2nd MME carries out SRVCC processing, And more new position request is sent to carry out location updating to home subscriber server.It can specifically include：

2nd MME preserves the SRVCC relevant informations of the user terminal；Sent more to the home subscriber server New position request, so as to the home subscriber server update the positional information related to the 2nd MME (such as：MME-ID To international mobile subscriber identity) and delete the positional information related to the first MME；Afterwards, the 2nd MME is to described User terminal sends TAU received messages and receives the TAU completion messages that the user terminal returns.It is specific for what is be directed to Signaling process, bearer context more new technological process etc., the present invention are not limited.

Optionally, in this implementation, when the context response includes the CSFB combined registerings of the user terminal During information, the 2nd MME sends more new position request to carry out location updating to the home subscriber server, and, to Moving exchanging center MSC sends position updating request to carry out the renewal of SGs interfaces so as to complete combined registering.Wherein, described One MME can insert the CSFB combined registerings information in the extended field of the context response.Wherein, SGs interfaces Renewal can use existing agreement, of the invention without limitation.

In the method that this implementation is provided, in the case of the first MME failures, the 2nd MME can be described The ability information of the UE is obtained during the TAU that first TAU requests are initiated, and then carries out location updating, can be according to described The ability that UE is supported carries out SRVCC processing or CSFB processing, ensure that the availability of circuit domain business and holding for speech business Continuous property.

Optionally, in a kind of implementation of the present embodiment, the first TAU requests are received in the 2nd MME Afterwards, the 2nd MME determines that the user terminal is not registered user's terminal of the 2nd MME, then performs following steps：

1）TAU received messages are sent to the user terminal, or TAU refuse informations are sent to terminate to the user terminal The TAU flows that the first TAU requests are initiated.Wherein, the TAU refuse informations carry the evolved packet system shifting for not changing UE Mobility management（EPS mobility management, EMM）The Reason For Denial value of login state, such as：conditional IE error（Condition cell error）.

2) the user terminal context release command for carrying cause specific value is sent to the eNB, so that the eNB will The cause specific value notifies the user terminal, so that the user terminal sends the 2nd TAU requests, institute to the eNB State the ability information that the 2nd TAU requests carry the user terminal.Wherein, the cause specific value can be Load Balancing TAU Required（Load is needed to reassign TAU）.

3）The 2nd TAU for receiving the eNB forwardings is asked so as to obtain the ability information of the user terminal.

Optionally, in the step 3 of this implementation, the TAU flows that the 2nd TAU requests are initiated are tracking area （TrackingArea, TA）The TAU flows of change, the related letters of SRVCC that the 2nd TAU requests carry the user terminal Breath.After 2nd MME receives the 2nd TAU requests, context request is sent to the first MME to ask the use The contextual information of family terminal；Receive that the first MME sends after the context request is received comprising it is described up and down The context response of literary information is so as to obtaining the contextual information；More new position request is sent to home subscriber server to enter Row location updating.

Optionally, in the step 3 of this implementation, the TAU flows that the 2nd TAU requests are initiated are united TA （Tracking area）/LA（Position area）More new technological process（Now, the TAU types of the 2nd TAU requests are " combined TA/LA Updating ", represent that the user terminal is supported or needs to perform CSFB）.2nd MME receives the 2nd TAU please After asking, context request is sent to the first MME to ask the contextual information of the user terminal；Receive described first The context response comprising the contextual information that MME is sent after the context request is received is so as to obtaining on described Context information；More new position request is sent to home subscriber server to carry out location updating；Position is sent to mobile switching centre Renewal request is put to carry out SGs interface renewals.

In the method that this implementation provides, the 2nd MME terminates in the TAU flows that the first TAU requests are initiated Afterwards, the ability information of the UE is obtained, and carries out location updating, the ability that can be supported according to the UE is carried out at SRVCC Reason or CSFB processing, ensure that the availability of circuit domain business and the sustainability of speech business.

Optionally, in a kind of implementation of the present embodiment, the first TAU requests are received in the 2nd MME Afterwards, the 2nd MME carries out following handle：

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

2）TAU refuse informations are sent so that the user terminal sends attach request to the eNB to the user terminal, The attach request carries the CSFB joint attachment information of the user terminal, or carries the SRVCC correlations of the user terminal Information.Wherein, the TAU refuse informations carry cause specific value（Such as：Implicitly detached（Implicit detach）, or UE identity cannot be derived by the network（The unavailable user's mark of network side））It is so that described UE EMM states change.

3）Receive the attach request of the eNB forwardings and carry out the attachment processing of the user terminal.Detailed is attached Handling process and can refer to prior art, the present invention is without limitation.

Fig. 2 is according to the schematic flow sheet of the MME ponds scene speech business keeping method of an embodiment of the present invention, reference Fig. 2, so that user terminal supports CSFB abilities as an example, this method includes：

2a）In the case of the first MME failures, UE sends the first TAU requests so as to initiate periodicity TAU to service eNB Flow and tell that the core net node that service UE last time described in eNB accesses is the first MME.

2b）The service eNB has found the S1 interface faults with the first MME, then is reselected in MME ponds normal 2nd MME is serviced, and the first TAU requests are forwarded into the 2nd MME.

2c）2nd MME determines that the TAU flows that the user terminal is initiated are the periodicity TAU flows that MME changes, Then TAU received messages are sent to the UE（2c-1 in such as figure）；Or the 2nd MME determines that the user terminal is initiated TAU flows be MME change periodicity TAU flows, then to the UE send TAU refuse informations（2c-2 in such as figure）, from And terminate current periodicity TAU flows.Wherein, the TAU refuse informations carry the reason for not changing UE EMM login states Value, such as：conditional IE error.

2d）2nd MME to the service eNB send UE context release commands, with release with the service eNB it Between S1 interfaces.Wherein, the UE contexts release command carries cause specific value：Load Balancing TAU Required。

2e）The service eNB passes through radio resource control（Radio Resource Control, RRC）Release disappears Above-mentioned cause value is notified the UE by breath.

2f）After the UE receives the message for carrying above-mentioned cause value, to the service eNB send the 2nd TAU request from And initiate united TA/LA location updatings.

2g）The service eNB sends the 2nd TAU requests to the 2nd MME.

2h）2nd MME carries out position update flow, and specific steps refer to related protocol, and the present invention is not done to this Limitation.

2i）2nd MME sends position updating request to MSC, to carry out location updating.

2j) MSC sends location updating received message to the 2nd MME, establishes the MSC and the 2nd MME Between SGs interface conjunctionns.

Here is omitted for subsequent step.

Embodiment illustrated in fig. 2 can ensure the availability of CSFB user speech phone and short message service.

Fig. 3 is according to the schematic flow sheet of the MME ponds scene speech business keeping method of an embodiment of the present invention, reference Fig. 3, so that user terminal supports SRVCC abilities as an example, this method includes：

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

3f）After the UE receives the RRC release messages for carrying cause value, the 2nd TAU requests are sent to the service eNB So as to initiate the TAU of TA changes, the 2nd TAU carries the SRVCC relevant informations of user, such as：MS Classmark2、MS Classmark3 and Support Code etc..

3g）The service eNB sends the 2nd TAU requests to the 2nd MME.

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

Here is omitted for subsequent step.

Embodiment illustrated in fig. 3 can ensure the continuity of SRVCC user speech telephone services.

Fig. 4 is according to the schematic flow sheet of the MME ponds scene speech business keeping method of an embodiment of the present invention, reference Fig. 4, this method include：

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

4c）2nd MME determines that the TAU flows that the user terminal is initiated are the periodicity TAU flows that MME changes, Then context request is sent to the first MME to ask the contextual information of the user terminal.

4d）First MME, which receives to send to the 2nd MME after the context request, includes the user terminal Contextual information context response, the context response also includes：The SRVCC relevant informations of the user terminal, or The CSFB combined registering information of the user terminal.

4e）2nd MME sends more new position request to carry out location updating to home subscriber server, optionally, When the context response includes the SRVCC relevant informations of the user terminal, the 2nd MME preserves the user terminal SRVCC relevant informations in order to the 2nd MME carry out SRVCC processing.

4f）Home subscriber server sends canceling position request to the first MME.

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

4h）The home subscriber server sends more new position response to the 2nd MME.

Detailed description for 4f-4h refer to prior art, not be described in detail herein.

If the context response includes the CSFB combined registering information of the user terminal, also need to perform step 4i And 4j, it otherwise need not perform step 4i and 4j.

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

Subsequent step repeats no more.

Fig. 5 is according to the schematic flow sheet of the MME ponds scene speech business keeping method of an embodiment of the present invention, reference Fig. 5, this method include：

5a-5b）It refer in embodiment illustrated in fig. 2 for step 2a-2b explanation.

5c）2nd MME determines that the user terminal is not registered user's terminal of the 2nd MME, then to described User terminal sends TAU refuse informations, and the TAU refuse informations carry refusing of changing the login state of the user terminal Exhausted cause value（Such as：Implicitly detached（Implicit detach）, or UE identity cannot be derived by the network（The unavailable user's mark of network side））So that the EMM states of the UE change.

5d）After the user terminal receives the TAU refuse informations, attach request is initiated to the 2nd MME, it is described Attach request carries the CSFB joint attachment information of the user terminal, or, the SRVCC relevant informations of the user terminal.Institute State attach request and be pass-through to the 2nd MME, i.e. step 5e via service eNB.

5e）The service eNB receives the attach request, and to the 2nd MME send the attach request so as to 2nd MME carries out the attachment processing of the user terminal.

5f）Normal attachment flow, prior art is refer to, is not repeated herein.

Fig. 6 is reported according to the mobility management entity pond scene ability information of user terminal of an embodiment of the present invention The schematic flow sheet of method, reference picture 6, this method includes：

600：User terminal initiates the first TAU requests, and the former service MME of MME the first of the user terminal break down, institute State the first TAU request by the 2nd MME receive, the 2nd MME be the first MME failures after service MME, described first MME and the 2nd MME are deployed in same MME ponds.

Optionally, the first TAU requests do not carry the ability information of the user terminal, such as：First TAU please It can be periodicity TAU requests to ask.

602：After the tracing section updating that the first TAU requests are initiated terminates, sent to the 2nd MME comprising described The message of the ability information of user terminal, so that the 2nd MME obtains the ability information of the user terminal, the user is whole The ability information at end includes：The SRVCC relevant informations of the user terminal, or the CSFB ability informations of the user terminal.

The method that the ability information of user terminal that the present embodiment is provided reports, can be in the first MME failures, will The ability information of the user terminal is sent to the 2nd MME by corresponding message, so that the 2nd MME is obtained in time The ability information of the user terminal, it ensure that the availability of circuit domain business and the sustainability of speech business.

Optionally, 602 can include following several implementations：

Implementation one comprises the following steps：

1）The user terminal receives the TAU that the 2nd MME is sent after the first TAU requests are received and receives to disappear Breath or TAU refuse informations, wherein, the TAU refuse informations, which carry, makes the login state of the user terminal keep constant Reason For Denial value.

2）The user terminal receives the radio resource control for the carrying cause specific value that evolved base station eNB is sent RRC release messages, wherein, the eNB receives the user's context for the carrying cause specific value that the 2nd MME is sent After release command the RRC release messages are sent to the user terminal.

3）The user terminal initiates the 2nd TAU requests to the 2nd MME, and the 2nd TAU requests carry the use The ability information of family terminal.

Exemplary, the operation performed by the user terminal in implementation one refer to be implemented shown in Fig. 2 or Fig. 3 Corresponding description in example.

Implementation two comprises the following steps：

1）The user terminal receives the TAU refusals that the 2nd MME is sent after the first TAU requests are received and disappeared Breath, the TAU refuse informations carry the Reason For Denial value for changing the login state of the user terminal.

2）Attach request is initiated so that the 2nd MME carries out the attachment processing of the user terminal to the 2nd MME, The attach request carries the CSFB joint attachment information of the user terminal, or, the related letters of SRVCC of the user terminal Breath.

Exemplary, the operation performed by the user terminal in implementation two refer in embodiment illustrated in fig. 5 Corresponding description.

Fig. 7 is reported according to the mobility management entity pond scene ability information of user terminal of an embodiment of the present invention The schematic flow sheet of method, reference picture 7, this method includes：

700：First MME receives the contextual information for being used to ask user terminal of the 2nd MME transmissions after breaking down Context request, the first MME is the former service MME of the user terminal, and the 2nd MME is the first MME hairs Service MME after raw failure.

702：Context response is sent to the 2nd MME, the context response includes the upper and lower of the user terminal Literary information and ability information, the ability information of the user terminal include：The SRVCC relevant informations of the user terminal, or institute State the CSFB ability informations of user terminal.

Optionally, in a kind of implementation of the present embodiment, the CSFB ability informations of the user terminal include：It is described The CSFB combined registering information of user terminal.

Exemplary, in a kind of implementation of the present embodiment, the operation performed by the first MME refer to Fig. 4 Corresponding description in institute's embodiment.

The method that the ability information of user terminal that the present embodiment is provided reports, can be in the first MME failures, will The ability information of the user terminal is sent to the 2nd MME by corresponding message, so that the 2nd MME is obtained in time The ability information of the user terminal, it ensure that the availability of circuit domain business and the sustainability of speech business.

Fig. 8 is that reference picture 8, MME80 includes according to the MME of an embodiment of the present invention structural representation：

First receiving unit 81, for when the first MME failures in mobility management entity MME ponds, it is whole to receive user The first tracing section updating TAU requests that end is sent, the first MME are the former service MME of the user terminal.

Optionally, in a kind of implementation of the present embodiment, the first TAU requests do not carry the user terminal Ability information, the first TAU requests include：Periodicity TAU is asked.

First processing units 82, for the first TAU request initiate tracing section updating during, from described first MME obtains the ability information of the user terminal, or, after the tracing section updating that the first TAU requests are initiated terminates, The ability information of the user terminal is obtained from the user terminal, the ability information of the user terminal includes：The user The Single Radio Voice Call Continuity SRVCC relevant informations of terminal, or the circuit switching fall-back CSFB energy of the user terminal Force information.

Optionally, MME80 can also include judging unit 83, for receiving described first in the first receiving unit 81 After TAU requests, judge whether the user terminal is registered user's terminal of the MME, if it is not, then triggering described first Processing unit 82.

The MME80 that the present embodiment provides in the case of the first MME failures, can obtain the energy of the user terminal Force information, avoid the problem of MME80 can not obtain user capability information.So that MME80 can be whole according to the user The ability at end carries out SRVCC processing or CSFB processing, ensure that the availability of circuit domain business and the sustainability of speech business.

Reference picture 9, Fig. 9 be according to the MME of an embodiment of the present invention structural representation, wherein, first processing units 92 include：

First transmission sub-unit 922, for sending context request to the first MME to ask the user terminal Contextual information；

First receiving subelement 924, the bag sent for receiving the first MME after the context request is received The context response of contextual information containing the user terminal, the context response also include：The user terminal SRVCC relevant informations, or the CSFB combined registering information of the user terminal.

Optionally, MME90 is in addition to including the first receiving unit 91, first processing units 92 and judging unit 93（Wherein, Although different for the label of the first receiving unit and judging unit in specification, function phase is same, embodiment as shown in Figure 8 In description, hereafter no longer special declaration）, in addition to：

Memory cell 94, for storing the ability information of the user terminal, such as：When upper in the context response During the SRVCC relevant informations of context information including the user terminal, store the SRVCC relevant informations of the user terminal so as to SRVCC processing is carried out in the MME.

Second processing unit 95, for sending more new position request to home subscriber server to carry out location updating.

Or it is optional, MME90 in addition to including the first receiving unit 91, first processing units 92 and judging unit 93, Also include：

3rd processing unit 96, for including the user terminal when the contextual information in the context response During CSFB combined registering information, more new position request is sent to the home subscriber server to carry out location updating；

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

Reference picture 10, Figure 10 be according to the MME of an embodiment of the present invention structural representation, wherein, the first processing is single Member 102 includes：

Second transmission sub-unit 1022, for sending TAU received messages to the user terminal, or to the user terminal TAU refuse informations are sent, wherein, the TAU refuse informations, which carry, makes the login state of the user terminal keep constant Reason For Denial value；

3rd transmission sub-unit 1024, the user terminal context of cause specific value is carried for being sent to the eNB Release command, so that the cause specific value is notified the user terminal by the eNB, so that the user terminal is to described MME initiates the 2nd TAU requests, and the 2nd TAU requests carry the ability information of the user terminal；

Second receiving subelement 1026, asked for receiving the 2nd TAU so as to obtain the ability of the user terminal Information.

Optionally, MME100 is in addition to including the first receiving unit 101, first processing units 102 and judging unit 103, Also include：

First transmitting element 104, for sending context request to the first MME to ask the user terminal Context information；

Second receiving unit 105, included for receive that the first MME sends after the context request is received The context response of the contextual information；

5th processing unit 106, for sending more new position request to home subscriber server to carry out location updating.

Further alternative, MME100 also includes：

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

Figure 11 is to be connect according to the MME of an embodiment of the present invention structural representation, reference picture 11, MME110 including first Unit 111, first processing units 112 and judging unit 113 are received, wherein, the first processing units 112 include：

4th transmission sub-unit 1122, for sending TAU refuse informations to the user terminal so as to the user terminal Attach request is initiated to the 2nd MME, the attach request carries the CSFB joint attachment information of the user terminal, or carries institute State the SRVCC relevant informations of user terminal.

3rd receiving subelement 1124, for receiving the attach request；

Subelement 1126 is handled, the attachment for carrying out the user terminal is handled.

Figure 12 is that reference picture 12, MME120 includes according to the MME of an embodiment of the present invention structural representation：Transmitting Machine 121, receiver 122, memory 123 and the processor being connected respectively with emitter 121, receiver 122 and memory 123 124.Wherein, various programs or application are stored in memory 123, to call corresponding program or application by processor 124, to hold Row is following to be operated：

When the first MME failures in mobility management entity MME ponds, user terminal is received by receiver 122 and initiated The first tracing section updating TAU requests, the first MME is the former service MME of the user terminal；

The ability information of the user terminal is obtained, including：In the tracing section updating process that the first TAU requests are initiated In, the ability information by receiver 122 from the first MME acquisitions user terminal, or, please in the first TAU Ask after the tracing section updating of initiation terminates, obtain the ability of the user terminal from the user terminal by receiver 122 Information, the ability information of the user terminal include：The Single Radio Voice Call Continuity SRVCC of the user terminal is related Information, or the circuit switching fall-back CSFB ability informations of the user terminal.

Optionally, the first TAU requests do not carry the ability information of the user terminal, the first TAU request bags Include：Periodicity TAU is asked.

Optionally, processor 124 is used for after the first TAU requests are received by receiver 122, judges the use Whether family terminal is registered user's terminal of the MME, if it is not, then performing the ability information for obtaining the user terminal Operation.

Optionally, processor 124 is used to send context request to the first MME to ask by emitter 121 The contextual information of user terminal is stated, receive the first MME by receiver 122 sends out after the context request is received The context response of the contextual information comprising the user terminal sent, the context response also include：The user is whole The SRVCC relevant informations at end, or the CSFB combined registering information of the user terminal.

Further alternative, the contextual information that processor 124 is additionally operable to work as in the context response includes the use During the SRVCC relevant informations of family terminal, the SRVCC relevant informations of the user terminal are stored to memory 123 in order to enter Row SRVCC processing；Processor 124 is additionally operable to send more new position request to home subscriber server by emitter 121 and held The corresponding location updating processing of row.

Or it is further alternative, the contextual information that processor 124 is additionally operable to work as in the context response includes institute When stating the CSFB combined registering information of user terminal, more new position request is sent to home subscriber server by emitter 121 To carry out location updating, position updating request is sent to carry out SGs interface renewals to mobile switching centre by emitter 121.

Optionally, processor 124 is used to send TAU received messages to the user terminal by emitter 121, or to institute State user terminal and send TAU refuse informations, wherein, the TAU refuse informations carry the login state for making the user terminal Keep constant Reason For Denial value；The user's end for carrying cause specific value is sent to evolved base station eNB by emitter 121 Context release command is held, so that the cause specific value is notified the user terminal by the eNB, so that the user is whole Hold to the MME and initiate the 2nd TAU requests, the 2nd TAU requests carry the ability information of the user terminal；Pass through reception Machine 122 receives the 2nd TAU requests so as to obtain the ability information of the user terminal.

Further alternative, processor 124 is additionally operable to send context request to the first MME by emitter 121 To ask the contextual information of the user terminal；First MME is received by receiver 122 and is receiving the context What is sent after request includes the context response of the contextual information；Sent by emitter 121 to home subscriber server More new position request is to carry out location updating.Further, processor 124 is additionally operable to by emitter 121 to mobile switch Center sends position updating request to carry out SGs interfaces renewal processing.

Optionally, processor 124 is used to send TAU refuse informations to the user terminal with toilet by emitter 121 State user terminal and initiate attach request to the 2nd MME, the CSFB joints that the attach request carries the user terminal are attached Information, or carries the SRVCC relevant informations of the user terminal；The attach request is received by receiver 122 and carried out The attachment processing of the user terminal.

Figure 13 A be according to the structural representation of the ability information reporting device of the user terminal of an embodiment of the present invention, The ability information reporting device 130 can be arranged in access net side, such as be arranged on the user terminal, including：

Transmitting element 131, for transmission the first TAU requests, event occurs for former service MME the first MME of the user terminal Barrier, the first TAU requests are received by the 2nd MME, and the 2nd MME is the service MME after the first MME failures, described First MME and the 2nd MME are deployed in same MME ponds.

Optionally, in a kind of implementation of the present embodiment, the first TAU requests do not carry the user terminal Ability information, the first TAU requests include：Periodicity TAU is asked.

First processing units 132, after the tracing section updating for being initiated in the first TAU requests terminates, to described the Two MME send the message of the ability information comprising the user terminal, so that the 2nd MME obtains the energy of the user terminal Force information, the ability information of the user terminal include：The SRVCC relevant informations of the user terminal, or the user terminal CSFB ability informations.

The ability information reporting device 130 that the present embodiment provides can be whole by the user in the first MME failures The ability information at end is sent to the 2nd MME by corresponding message, so that the 2nd MME obtains user's end in time The ability information at end, it ensure that the availability of circuit domain business and the sustainability of speech business.

Optionally, in a kind of implementation of the present embodiment, reference picture 13B, first processing units 132 include：

First receiving subelement 1322, sent after the first TAU request is received for receiving the 2nd MME TAU received messages or TAU refuse informations, wherein, the TAU refuse informations, which carry, protects the login state of the user terminal Hold constant Reason For Denial value.

Second receiving subelement 1324, the wireless money of the carrying cause specific value for receiving evolved base station eNB transmissions Source control protocol RRC release messages, wherein, the eNB receives the carrying cause specific value that the 2nd MME is sent After user's context release command the RRC release messages are sent to the user terminal.

First transmission sub-unit 1326, for initiating the 2nd TAU requests to the 2nd MME, the 2nd TAU requests are taken Ability information with the user terminal.

Optionally, in a kind of implementation of the present embodiment, reference picture 13C, first processing units 132 include：

3rd receiving subelement 1328, sent after the first TAU request is received for receiving the 2nd MME TAU refuse informations, the TAU refuse informations carry the Reason For Denial value for changing the login state of the user terminal.

Second transmission sub-unit 1330, for sending attach request to the 2nd MME so that the 2nd MME carries out institute The attachment processing of user terminal is stated, the attach request carries the CSFB joint attachment information of the user terminal, or, the use The SRVCC relevant informations of family 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, is somebody's turn to do Ability information reporting device 140 can be arranged in access net side, such as be arranged on the user terminal, including：Emitter 141st, receiver 142, memory 143 and the processor being connected respectively with emitter 141, receiver 142 and memory 143 144.Wherein, memory 143 is stored with various programs or application, to call corresponding program or application by processor 144, to hold Row is following to be operated：

Processor 144 sends the first TAU requests by emitter 141, and former service MME the first MME of user terminal occur Failure, the first TAU request are received by the 2nd MME, and the 2nd MME is the service MME after the first MME failures, institute State the first MME and the 2nd MME is deployed in same MME ponds；

After the tracing section updating that the first TAU requests are initiated terminates, processor 144 is by emitter 141 to described 2nd MME sends the message of the ability information comprising the user terminal, so that the 2nd MME obtains the user terminal Ability information, the ability information of the user terminal include：The SRVCC relevant informations of the user terminal, or the user are whole The CSFB ability informations at end.Wherein, the message of the ability information comprising the user terminal can be via the user terminal Service eNB is pass-through to the 2nd MME.

Optionally, the first TAU requests do not carry the ability information of the user terminal, the first TAU request bags Include：Periodicity TAU is asked.

Optionally, processor 144 be used for by receiver 142 receive the 2nd MME receive the first TAU ask The TAU received messages or TAU refuse informations sent after asking, wherein, the TAU refuse informations, which carry, makes the user terminal Login state keeps constant Reason For Denial value；The wireless money for the carrying cause specific value that eNB is sent is received by receiver 142 Source control protocol RRC release messages, wherein, the eNB receives the carrying cause specific value that the 2nd MME is sent After user's context release command the RRC release messages are sent to the user terminal；By emitter 141 to described second MME initiates the 2nd TAU requests, and the 2nd TAU requests carry the ability information of the user terminal.

Optionally, processor 144 be used for by receiver 142 receive the 2nd MME receive the first TAU ask The TAU refuse informations sent after asking, the TAU refuse informations carry the refusal for changing the login state of the user terminal Cause value；Attach request is sent so that the 2nd MME carries out the user terminal to the 2nd MME by emitter 141 Attachment processing, the attach request carries the CSFB joint attachment information of the user terminal, or, the user terminal SRVCC relevant informations.

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, is somebody's turn to do Ability information reporting device 150 can be arranged in core-network side, such as be arranged on mobility management entity, including：

Receiving unit 151, the context for being used to ask the contextual information of user terminal sent for receiving the 2nd MME Request, the 2nd MME are the service MME after the former service MME of the user terminal breaks down, and the ability information reports Device 150 is arranged in the former service MME, and the former service MME and the 2nd MME is deployed in same MME ponds.

Transmitting element 152, for sending context response to the 2nd MME, the context response includes the use The contextual information and ability information of family terminal, the ability information of the user terminal include：The SRVCC phases of the user terminal Close information, or the CSFB ability informations of the user terminal.

Optionally, in a kind of implementation of the present embodiment, the CSFB ability informations of the user terminal include：It is described The CSFB combined registering information of user terminal.

The ability information reporting device 150 that the present embodiment is provided can be in the first MME failures, by the user The ability information of terminal is sent to the 2nd MME by corresponding message, so that the 2nd MME obtains the user in time The ability information of terminal, it ensure that the availability of circuit domain business and the sustainability of speech business.

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, is somebody's turn to do Ability information reporting device 160 can be arranged in core-network side, such as be arranged on mobility management entity, including：Emitter 161st, receiver 162, memory 163 and the processor being connected respectively with emitter 161, receiver 162 and memory 163 164.Wherein, memory 163 is stored with various programs or application, to call corresponding program or application by processor 164, to hold Row is following to be operated：

Processor 164 receives the contextual information for being used to ask user terminal of the 2nd MME transmissions by receiver 162 Context request, the 2nd MME are the service MME after the former service MME of the user terminal breaks down, and the ability is believed Breath reporting device 160 is arranged in the former service MME, and the former service MME and the 2nd MME is deployed in same MME ponds；

Context response is sent to the 2nd MME by emitter 161, it is whole that the context response includes the user The contextual information and ability information at end, the ability information of the user terminal include：The related letters of the SRVCC of the user terminal Breath, or the CSFB ability informations of the user terminal.

Optionally, the CSFB ability informations of the user terminal include：The CSFB combined registering information of the user terminal.

Figure 17 is according to the schematic diagram of the MME cell systems of an embodiment of the present invention, reference picture 17, the MME cell systems Including：First MME171 and the 2nd MME172.Wherein, the structure explanation for the 2nd MME172 refer to Fig. 8 and appoint into Figure 12 Corresponding description in an illustrated embodiment of anticipating, is not repeated herein.Wherein, the first MME171 is included applies to install in ability information Put, refer to corresponding description in Figure 15 or embodiment illustrated in fig. 16 for the explanation of the ability information reporting device, herein Do not repeat.

Certainly, MME cell systems can also include interconnecting relation between other MME, eNB and each MME etc., and the present invention is right This is not limited.MME cell systems provided by the invention can in time be obtained from the first MME171 by the 2nd MME172 and used The ability information of family terminal, and then ensure circuit domain business availability and the sustainability of 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, reference picture 18, the system includes：2nd MME181 and user terminal 182, wherein, it refer to figure for the 2nd MME181 structure explanation Corresponding description in 8-12 in any one illustrated embodiment, is not repeated herein.Wherein, the user terminal 182 includes ability Information reporting device, Figure 13 A realities shown in any one into Figure 14 are refer to for the explanation of the ability information reporting device The corresponding description in example is applied, is not repeated herein.

The ability information of user terminal reporting system that the present embodiment provides so that the 2nd MME181 can in time pass through institute State user terminal 182 and obtain its ability information, and then circuit domain business availability and the sustainability of speech business can be ensured.

One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic Dish, CD, read-only memory（Read-Only Memory, ROM）Or random access memory（Random Access Memory, RAM）Deng.

The above disclosed power for being only a kind of preferred embodiment of the present invention, the present invention can not being limited with this certainly Sharp scope, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.

Claims (13)

1. A kind of 1. mobility management entity pond scene speech business keeping method, it is characterised in that including：

   When the first MME failures in mobility management entity MME ponds, the 2nd MME in the MME ponds receives user terminal The the first tracing section updating TAU requests initiated, the first MME are former the service MME, the 2nd MME of the user terminal For the service MME after the first MME failures；

   After the tracing section updating that the first TAU requests are initiated terminates, the 2nd MME obtains institute from the user terminal The ability information of user terminal is stated, including：It is not registered user's terminal of the 2nd MME to determine the user terminal, to institute State user terminal and send TAU received messages, or TAU refuse informations are sent to the user terminal, wherein, the TAU refusals disappear Breath, which carries, makes the login state of the user terminal keep constant Reason For Denial value, sends and carries to evolved base station eNB There is the user terminal context release command of cause specific value, so that the cause specific value is notified the user by the eNB Terminal, so that the user terminal initiates the 2nd TAU requests to the 2nd MME, the 2nd TAU requests carry the use The ability information of family terminal, the 2nd TAU requests are received so as to obtain the ability information of the user terminal, user's end The ability information at end includes：The Single Radio Voice Call Continuity SRVCC relevant informations of the user terminal, or the user The circuit switching fall-back CSFB ability informations of terminal.
2. 2. according to the method for claim 1, it is characterised in that the first TAU requests do not carry the user terminal Ability information, the first TAU requests include：Periodicity TAU is asked.
3. 3. method according to claim 1, it is characterised in that methods described also includes：

   2nd MME sends context request to ask the contextual information of the user terminal to the first MME；

   The context comprising the contextual information that the first MME is sent after the context request is received is received to ring Should be so as to obtaining the contextual information；

   More new position request is sent to home subscriber server to carry out location updating；

   If the 2nd TAU requests carry the CSFB ability informations of the user terminal, methods described further comprises：To Mobile switching centre sends position updating request to carry out SGs interface renewals.
4. 4. a kind of method that mobility management entity pond scene ability information of user terminal reports, it is characterised in that including：

   User terminal initiates the first TAU requests, and the former service MME of MME the first of the user terminal break down, and described first TAU requests are received by the 2nd MME, and the 2nd MME is the service MME after the first MME failures, the first MME and the Two MME are deployed in same MME ponds；

   After the tracing section updating that the first TAU requests are initiated terminates, the user terminal receives the 2nd MME and received The TAU received messages or TAU refuse informations sent after being asked to the first TAU, wherein, the TAU refuse informations carry The login state of the user terminal is set to keep constant Reason For Denial value；

   The radio resource control RRC release messages for the carrying cause specific value that evolved base station eNB is sent are received, wherein, The user's context release command that the eNB receives the carrying cause specific value that the 2nd MME is sent is described backward User terminal sends the RRC release messages；

   The 2nd TAU requests are initiated to the 2nd MME, the 2nd TAU requests carry the ability information of the user terminal, with Toilet states the ability information that the 2nd MME obtains the user terminal, and the ability information of the user terminal includes：The user is whole The SRVCC relevant informations at end, or the CSFB ability informations of the user terminal.
5. 5. according to the method for claim 4, it is characterised in that the first TAU requests do not carry the user terminal Ability information, the first TAU requests include：Periodicity TAU is asked.
6. A kind of 6. MME of mobility management entity the 2nd, it is characterised in that including：

   First receiving unit, initiated for when the first MME failures in mobility management entity MME ponds, receiving user terminal The first tracing section updating TAU requests, the first MME is the former service MME of the user terminal；

   First processing units, after the tracing section updating for being initiated in the first TAU requests terminates, from the user terminal The ability information of the user terminal is obtained, including：It is not the 2nd MME registered user's terminal to determine the user terminal, to The user terminal sends TAU received messages, or sends TAU refuse informations to the user terminal, wherein, the TAU refusals Message, which carries, makes the login state of the user terminal keep constant Reason For Denial value, sends and takes to evolved base station eNB User terminal context release command with cause specific value, so that the cause specific value is notified the use by the eNB Family terminal, so that the user terminal initiates the 2nd TAU requests to the 2nd MME, the 2nd TAU is asked described in carrying The ability information of user terminal, the 2nd TAU requests are received so as to obtain the ability information of the user terminal, the user The ability information of terminal includes：The Single Radio Voice Call Continuity SRVCC relevant informations of the user terminal, or the use The circuit switching fall-back CSFB ability informations of family terminal.
7. 7. the 2nd MME according to claim 6, it is characterised in that the first TAU requests do not carry the user terminal Ability information, the first TAU request includes：Periodicity TAU is asked.
8. 8. the 2nd MME as claimed in claims 6 or 7, it is characterised in that the 2nd MME also includes：

   Judging unit, for after first receiving unit receives the first TAU requests, judging that the user terminal is It is no to be registered user's terminal of the MME, if it is not, then triggering the first processing units.
9. 9. the 2nd MME as claimed in claim 6, it is characterised in that the 2nd MME also includes：

   First transmitting element, for sending context request to the first MME to ask the context of the user terminal to be believed Breath；

   Second receiving unit, for receiving that the first MME sends after the context request is received comprising described The context response of context information；

   5th processing unit, for sending more new position request to home subscriber server to carry out location updating.
10. 10. the 2nd MME as claimed in claim 9, it is characterised in that the 2nd MME also includes：

    6th processing unit, for sending position updating request to mobile switching centre to carry out SGs interface renewals.
11. A kind of 11. ability information reporting device of user terminal, it is characterised in that including：

    Transmitting element, for sending the first TAU requests, the former service MME of MME the first of the user terminal break down, described First TAU requests are received by the 2nd MME, and the 2nd MME is the service MME, the first MME after the first MME failures Same MME ponds are deployed in the 2nd MME；

    First processing units, after the tracing section updating for being initiated in the first TAU requests terminates, receive the 2nd MME The TAU received messages or TAU refuse informations sent after the first TAU requests are received, wherein, the TAU refuse informations Carrying makes the login state of the user terminal keep constant Reason For Denial value, receives taking for evolved base station eNB transmissions Radio resource control RRC release messages with cause specific value, wherein, the eNB receives what the 2nd MME was sent Carry and send the RRC release messages to the user terminal after the user's context release command of the cause specific value, to 2nd MME initiates the 2nd TAU requests, and the 2nd TAU requests carry the ability information of the user terminal, so as to described 2nd MME obtains the ability information of the user terminal, and the ability information of the user terminal includes：The user terminal SRVCC relevant informations, or the CSFB ability informations of the user terminal.
12. 12. device according to claim 11, it is characterised in that the first TAU requests do not carry the user terminal Ability information, the first TAU request includes：Periodicity TAU is asked.
13. 13. a kind of ability information of user terminal reporting system, it is characterised in that the system includes：2nd MME and user are whole End, wherein, the 2nd MME is the MME as described in any one in claim 6-10, and the user terminal includes such as right It is required that the ability information reporting device described in 11 or 12.