CN101351040B

CN101351040B - Method for establishing voice call and mobile management entity, user equipment

Info

Publication number: CN101351040B
Application number: CN2007101675019A
Authority: CN
Inventors: 于益俊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-07-19
Filing date: 2007-10-22
Publication date: 2012-05-30
Anticipated expiration: 2027-10-22
Also published as: CN101351040A

Abstract

The invention provides a method for setting up voice call, a mobile management entity and user equipment. The method for setting up voice call comprises that: the voice signaling mode of the located network of the user is sent to the user equipment; the user equipment receives and records the voice signaling mode; when the user makes a call, the user equipment selects a corresponding voice call signaling based on the voice signaling mode and uses the selected voice signaling to make a call. By means of the technical proposal provided by the invention embodiment, different voice signaling modes can be adopted without the participation of the user, thereby reducing the complexity of the user to use the user equipment and bringing using convenience for the user.

Description

Method for establishing voice call and mobile management entity, subscriber equipment

Technical field

The present invention relates to the mobile communication technology field, method that particularly a kind of audio call is set up and mobile management entity, subscriber equipment.

Background technology

In traditional mobile communications network; Speech business adopts circuit commutative field (CS, Circuit Switch) system to transmit, in order to carry out speech business; Need to adopt earlier call control signalling to accomplish the foundation of call link between calling mobile terminal (UE, User Equipment) and the called UE.What between load bearing equipment, transmit at this moment, is call control signalling.For example, UE sends traditional call control signalling to mobile switching centre (MSC, Mobile SwitchCenter), sets up signaling link.

In mobile communications network superposition behind IP Multimedia System (IMS, the IP Multimedia System) network, can utilize the speech business of IMS network processes.The IP Access Network that this moment, UE need utilize IMS for example; GPRS (GPRS; General Packet Radio Service) carrying transmission session initializtion protocol (SIP, the Session Initiation Protocol) signaling of setting up is accomplished the foundation of call link.What transmitted this moment between load bearing equipment is the SIP signaling that is encapsulated as the IP bag.For example, UE utilizes this carrying the SIP signaling of audio call to be sent to CSCF (CSCF, the Call SessionControl Function) entity in IMS territory.Using IMS to control voice signaling is following development trend.

In the packet network of evolution, accomplish the another kind of method of speech processes as making full use of existing C S network, the foundation of the call control signalling completion call link in CS territory is transmitted in the carrying that UE can utilize the packet network of evolution to set up.What transmitted this moment between load bearing equipment is the call control signalling that is encapsulated as the IP bag.For example; Evolution packet network is the carrying that UE sets up an IP-based call control signalling of transmission; UE is packaged into the IP packet with traditional call control signalling; Utilize this carrying to send to the MSC of enhancing, the MSC of enhancing unties this IP bag, obtains traditional call control signalling and accomplishes call establishment.

Therefore, in the packet network of evolution,, then possibly have three kinds of selections at least: use traditional call control signalling if UE need carry out audio call; Use the SIP signaling; Use IP-based call control signalling.Because three kinds of voice call methods need adopt the different protocol stack to handle, UE and network also need adopt diverse ways to transmit and handle these voice signalings.The network of operator also can be supported multiple voice signaling mode, and UE considers from compatibility, also can support multiple voice signaling mode.

When the technical scheme that provides according to prior art is set up audio call; Need the user to know the situation of current network in advance; Select the voice signaling mode by the user according to the situation of current network and the needs of self; Know that such as, user current network can use IP phone to reduce rate, so the user uses the IP phone service through dialing specific telephone number.

But the packet network of evolution is the telecommunications network of an IP based network, so the difference of CS phone and IP phone mode no longer exists.If still need the user to participate in selecting the voice signaling mode, increased the complexity that the user uses terminal equipment.

And when UE when called, prior art can be selected different signaling methods according to the situation that UE registers in heterogeneous networks.When being registered to the IMS territory as UE; If called signaling is received from the CS territory; Then MSC can learn that this UE is registered to the IMS territory, therefore through the routing iinformation of HLR/HSS inquiry UE; MSC can assemble SIP and turn to signaling that audio call is sent to the IMS territory, thereby carries out the subsequent voice Business Processing in the IMS territory.But along with increasing of spendable voice signaling mode; This method can not be satisfied the demand fully; When being registered to the CS territory as UE, can select to use traditional call control signalling or IP-based call control signalling, the routing iinformation that write down among the HLR/HSS this moment can only explain that present UE is registered to the CS territory; Do not know but which kind of voice signaling mode UE can use, thereby can not guarantee carrying out smoothly of speech business.

Therefore; In carrying out the invention process; The inventor finds to have following problem in the prior art at least: when the technical scheme that adopts prior art to provide is set up audio call, need the user to know the situation of current network, and participate in adopting down the different voice signaling method the user; Therefore increased the complexity that the user uses terminal equipment, for the user has brought inconvenience in the use.And when UE when called owing to can't know the voice signaling mode ability that UE has, can not select suitable voice signaling to accomplish the subsequent voice Business Processing.

Summary of the invention

The technical problem that the embodiment of the invention will solve is that method that a kind of audio call sets up and mobile management entity, subscriber equipment are provided, and subscriber equipment can adopt suitable voice signaling mode to set up call link.

For solving the problems of the technologies described above, the purpose of the embodiment of the invention realizes through following technical scheme:

The method that the embodiment of the invention provides a kind of audio call to set up comprises:

Mobility Management Entity sends to subscriber equipment with the employed voice signaling mode of user's network of living in;

Subscriber equipment receives and writes down said voice signaling mode;

When the user made a call, subscriber equipment was selected the relevant voice call signaling according to said voice signaling mode; And use selected audio call signaling to make a call.

The method that the embodiment of the invention also provides a kind of audio call to set up comprises:

Subscriber equipment sends the voice signaling mode that this subscriber equipment is supported to user's network of living in;

Subscriber equipment receives the voice signaling mode of being selected by the residing network based configured strategy of user;

When the user made a call, subscriber equipment was selected the relevant voice call signaling according to the said voice signaling mode that receives; And use selected audio call signaling to make a call.

Controlling call entity receives the voice signaling mode of supporting as called subscriber equipment;

Controlling call entity judges whether the voice signaling mode of controlling call entity place network matees with the voice signaling mode of supporting as called subscriber equipment; If; Then controlling call entity selects the voice signaling mode of current network and the subscriber equipment as the called subscriber to accomplish call setup; If, then call signaling is not forwarded to the network that matees with the voice signaling mode of supporting as called subscriber equipment.

The embodiment of the invention also provides a kind of mobile management entity, and the subscriber equipment that is used to access to mobile network provides the mobile management service, comprising:

Acquiring unit is used to obtain the voice signaling mode that current mobile network is suitable for;

Transmitting element is used to send the subscriber equipment that the voice signaling mode that current mobile network was suitable for that acquiring unit obtains is given access to mobile network.

The embodiment of the invention also provides a kind of subscriber equipment, is used for the access communications network and sets up network with other communication equipment being connected, thereby realize communication, comprising:

Receiving element is used to receive the voice signaling mode that current mobile network was suitable for of sending from Mobility Management Entity;

Memory cell is used to write down the voice signaling mode that current mobile network was suitable for that said receiving element receives;

Selected cell is used for selecting the relevant voice call signaling to make a call according to the voice signaling mode of said memory cell.

Receiving element is used to receive the voice signaling mode that subscriber equipment that subscriber equipment sends is supported;

Selected cell is used for the strategy according to network configuration, from the voice signaling mode that subscriber equipment is supported, selects the voice signaling mode;

Transmitting element is used for the selected voice signaling mode of selected cell is sent to subscriber equipment.

The present invention also provides a kind of subscriber equipment, is used for the access communications network and sets up network with other communication equipment being connected, thereby realize communication, comprising:

Memory cell is used to store the voice signaling mode that subscriber equipment is supported;

Transmitting element is used for sending the voice signaling mode that subscriber equipment that memory cell stores supports and gives mobile management entity;

Receiving element is used for the voice signaling mode of the subscriber equipment that the receiving mobility management entity selects.

The present invention also provides a kind of controlling call entity, is used for control is called out in the communication between the user terminal, comprising:

Receiving element is used to receive the call signaling that carries as called user equipment information;

Query unit is used for the call signaling that receives according to receiving element, sends the request of inquiry as the routing iinformation of called subscriber equipment to attaching position register;

Acquiring unit is used to receive the query response message that attaching position register returns, and said query response message carries the routing iinformation of subscriber equipment and the voice signaling mode of support;

Judging unit; Be used to judge whether the voice signaling mode of controlling call entity place network matees with the voice signaling mode of supporting as called subscriber equipment; If; The voice signaling mode of then selecting current network is accomplished the call setup flow process with the subscriber equipment as the called subscriber, if not, and the network that the voice signaling mode of then forwarded call signaling to another and subscriber equipment support is mated.

Method that the audio call that provides through the embodiment of the invention is set up and mobile management entity, subscriber equipment; Can the voice signaling mode of user's network of living in be sent to subscriber equipment; Subscriber equipment can select suitable voice signaling mode to set up call link according to the voice signaling mode of network of living in; Therefore need not employing different voice signaling method under user's participation, reduced the complexity that the user uses terminal equipment, for the user brings convenience in the use; Method that the audio call that provides through the embodiment of the invention is set up and mobile management entity, subscriber equipment; Subscriber equipment can send to user's network of living in the voice signaling mode of supporting; The voice signaling mode that user's network selecting of living in is suitable returns to subscriber equipment; Subscriber equipment adopts the voice signaling mode of user's network selecting of living in to set up call link; Therefore need not employing different voice signaling method under user's participation, reduced the complexity that the user uses terminal equipment, for the user brings convenience in the use; And the method that the audio call that provides through the embodiment of the invention is set up; When subscriber equipment when called; Controlling call entity can be known the voice signaling mode that subscriber equipment is supported, therefore can select suitable voice signaling to accomplish the subsequent voice Business Processing.

Description of drawings

Fig. 1 is the flow chart of method first embodiment of audio call foundation of the present invention;

Fig. 2 is the flow chart of method second embodiment of audio call foundation of the present invention;

Fig. 3 is the flow chart of method the 3rd embodiment of audio call foundation of the present invention;

Fig. 4 is the flow chart of method the 4th embodiment of audio call foundation of the present invention;

Fig. 5 is the flow chart of method the 5th embodiment of audio call foundation of the present invention;

Fig. 6 is the flow chart of method the 6th embodiment of audio call foundation of the present invention;

Fig. 7 is the structure chart of mobile network system first embodiment of the present invention;

Fig. 8 is the structure chart of mobile network system second embodiment of the present invention;

Fig. 9 is the structure chart of mobile network system the 3rd embodiment of the present invention;

Figure 10 is the structure chart of mobile network system the 4th embodiment of the present invention;

Figure 11 is the structure chart of mobile network system the 5th embodiment of the present invention.

Embodiment

The embodiment of the invention provides method that a kind of audio call sets up and mobile management entity, subscriber equipment.For making technical scheme of the present invention clearer, below with reference to accompanying drawing and enumerate embodiment, to further explain of the present invention.

Please with reference to Fig. 1, the flow chart of method first embodiment that sets up for audio call of the present invention.In the present embodiment, when portable terminal was attached to network, Mobility Management Entity sent the attach request response message of the voice signaling mode of carrying attach to network and gives portable terminal.

The detailed process that audio call is set up among the said mobile network comprises:

Step 101: portable terminal sends Attach Request message to the Mobility Management Entity of network, and request is attached in the network;

Said Mobility Management Entity is mobile management entity (MME, Mobile Management Entity), Serving GPRS Support Node (SGSN, Serving GPRS Supporting Node) etc.

Step 102: the portable terminal that said network adheres to request carries out authentication;

Step 102 is optional.

Step 103: after authentication is passed through; Mobility Management Entity is to attaching position register (HLR/HSS; Home location Register/Home Subscriber Server) initiates more new technological process of position, and obtain user's subscription data from attaching position register;

If operator is configured in the voice signaling mode of the network subscription data as the user in the attaching position register, then Mobility Management Entity comprises the voice signaling mode of network from attaching position register obtains user's subscription data.

Step 104: set up default bearer between mobile management entity and the packet gateway, if the voice signaling mode is configured in the packet gateway, then packet gateway sends to Mobility Management Entity with the voice signaling mode of configuration;

If the network that this portable terminal adheres to is grouping system (EPS, the Evolved PacketSystem) network of evolution, then in attaching process, need set up default bearer for this portable terminal.If operator is configured in the voice signaling mode in the packet gateway (PDN GW/GGSN, Packet Data Gateway/Gateway GSN), then to set up in the process at default bearer, packet gateway sends to Mobility Management Entity with the voice signaling mode of configuration.Therefore step 104 is optional.

Step 105: Mobility Management Entity sends the response message (promptly adhere to and receive message) of attach request to portable terminal; Said message is carried the voice signaling mode of attach to network; After portable terminal is received the message of the voice signaling mode of carrying attach to network, the voice signaling mode of record network;

Said voice signaling mode comprises traditional call control signalling, SIP signaling or IP-based call control signalling etc.The voice signaling mode that said voice signaling mode can be portable terminal network support of living in is tabulated; Network of living in also can provide the precedence information of voice signaling mode; Such as preferred voice signaling mode being placed on first of voice signaling tabulation, perhaps for every kind of signaling method assigned priority etc.Said voice signaling mode except in step 103 and step 104 from attaching position register and packet gateway obtain, can also directly be pre-configured to be on the Mobility Management Entity.

Step 106: portable terminal returns to Mobility Management Entity and adheres to completion message.

Step 106 is optional.

Step 107: when the user made a call, portable terminal selected the relevant voice call signaling to set up call link according to the said voice signaling mode of record.

If the voice signaling mode that portable terminal obtains is a kind of incessantly; Then portable terminal need be according to the voice signaling mode ability of self; Can preferably advise by the reference voice signaling method simultaneously, select a kind of voice signaling mode, and utilize the relevant voice call signaling to set up call link.Described voice signaling mode advises preferably and can be provided by network side that perhaps portable terminal self provides.

Please with reference to Fig. 2, the flow chart of method second embodiment that sets up for audio call of the present invention.In the present embodiment; When portable terminal moves to the reposition district from old lane place; Cause portable terminal need be updated to the Mobility Management Entity in reposition district at the mobile management entity of old lane place; In the renewal process of lane place, the Mobility Management Entity in reposition district sends the position updating request response message of the voice signaling mode of carrying reposition district network and gives portable terminal.

Audio call is set up detailed process and is comprised among the said mobile network:

Step 201: portable terminal sends the location area updating request message through the Mobility Management Entity of new access network equipment to the reposition district;

Step 202: the Mobility Management Entity in reposition district sends context request message, acquisition request user's context to the Mobility Management Entity of old lane place;

Step 203: the Mobility Management Entity of old lane place returns context response information to the Mobility Management Entity in reposition district, carries the voice signaling mode of user's MM Context, bearer context and old lane place network.

Step 204: the Mobility Management Entity in reposition district carries out authentication to said portable terminal;

Step 204 is optional.

Step 205: after authentication was passed through, the Mobility Management Entity in reposition district sent context acknowledgement message to the Mobility Management Entity of old lane place.

Step 206: set up default bearer between the mobile management entity in reposition district and the packet gateway, if the voice signaling mode is configured in the packet gateway, then packet gateway sends to the voice signaling mode of configuration the Mobility Management Entity in reposition district;

If this user is attached to the EPS network, then in the MME in reposition district, also need set up default bearer for portable terminal.If operator is pre-configured to be in the voice signaling mode in the packet gateway, then to set up in the process at default bearer, packet gateway can send to the voice signaling mode of configuration the Mobility Management Entity in reposition district.Therefore step 206 is optional.

Step 207: the Mobility Management Entity in reposition district is initiated more new technological process of position to attaching position register, obtains user's subscription data;

If operator is configured in the voice signaling mode of the network subscription data as the user in the attaching position register, then the Mobility Management Entity in reposition district comprises the voice signaling mode of network from attaching position register obtains user's subscription data.

Step 208: the Mobility Management Entity in reposition district sends location area updating request responding message (being that location area updating receives message) to portable terminal; The voice signaling mode that has comprised network in the said message; After portable terminal is received the message of the voice signaling mode of carrying attach to network, the voice signaling mode of record network;

Said voice signaling mode comprises traditional call control signalling, SIP signaling or IP-based call control signalling etc.Said voice signaling mode can be tabulated for the voice signaling mode of portable terminal network support of living in; Network of living in also can provide the precedence information of voice signaling mode; Such as preferred voice signaling mode being placed on first of voice signaling tabulation, perhaps for every kind of signaling method assigned priority etc.Said voice signaling mode except in step 206 and step 207 from packet gateway or its storage of homing position obtain, also can directly be configured on the Mobility Management Entity in reposition district.

At the Mobility Management Entity in reposition district before portable terminal sends location area updating request responding message; The Mobility Management Entity in reposition district can also judge further whether the voice signaling mode that writes down in the Mobility Management Entity with old lane place is identical; If it is identical; Then in said message, do not carry the voice signaling mode,, then in said message, carry the voice signaling mode if inequality.

Step 209: portable terminal upgrades to the Mobility Management Entity home position district in reposition district accomplishes message.

Step 209 is optional.

Step 210: when the user made a call, portable terminal selected the relevant voice call signaling to set up call link according to the said voice signaling mode of record.

Please with reference to Fig. 3, the flow chart of method the 3rd embodiment that sets up for audio call of the present invention.In the present embodiment; When portable terminal switches; The reorientation (Relocation) that comprises RNS is handled, and the switching between the different access systems etc., can cause the Mobility Management Entity of portable terminal to change into the Mobility Management Entity of destination from the Mobility Management Entity of source; In handoff procedure, the Mobility Management Entity of source sends the voice signaling mode switching command message of carrying the destination network and gives portable terminal.

Step 301: the source access network equipment sends handoff request message to the source Mobility Management Entity;

Step 302: the source Mobility Management Entity is transmitted said handoff request message to the destination Mobility Management Entity;

Step 303: destination Mobility Management Entity and destination access network equipment carry out the destination switchable resource and prepare to handle;

Step 304: the destination Mobility Management Entity sends the response message of handoff request to the source Mobility Management Entity, comprises the voice signaling mode of destination Mobility Management Entity place network in the said message;

Step 305: the source Mobility Management Entity sends switching command to portable terminal; The voice signaling mode that comprises destination Mobility Management Entity place network in the said switching command message; After portable terminal is received the message of the voice signaling mode of carrying attach to network, the voice signaling mode of record network.

Step 306: portable terminal is accomplished and is switched;

Concrete handoff procedure is identical with general handoff procedure, does not further describe here.

Step 307: as user during in the destination network-originated call, portable terminal selects the relevant voice call signaling to set up call link according to the said voice signaling mode of record.

Voice signaling mode described in the present embodiment comprises traditional call control signalling, SIP signaling or IP-based call control signalling etc.; The voice signaling mode that can be portable terminal network support of living in is tabulated; Network of living in also can the voice signaling mode precedence information; Such as preferred voice signaling mode being placed on first of voice signaling tabulation, perhaps for every kind of signaling method assigned priority etc.

The mobile management entity of source is before sending switching command message to portable terminal; The mobile management entity of source can also judge further whether the voice signaling mode that provides with the mobile management entity of destination is identical; If it is identical; Then in said message, do not carry the voice signaling mode,, then in said message, carry the voice signaling mode if inequality.

Because the voice signaling mode of network generally is consistent for an operator; Be whole public land mobile net (PLMN; Public Land Mobile Network) in is consistent; So also can in cell broadcast messages, carry the voice signaling mode of network, send to portable terminal.Portable terminal carries out record after receiving the voice signaling mode in the cell broadcast messages, and the voice signaling mode of service recorder is set up call link when portable terminal is initiated audio call.Described voice signaling mode comprises traditional call control signalling, SIP signaling or IP-based call control signalling etc.; The voice signaling mode that can be portable terminal network support of living in is tabulated; Network of living in also can provide preferred voice signaling mode; Such as preferred voice signaling mode being placed on first of voice signaling tabulation, perhaps for every kind of signaling method assigned priority etc.

Certainly; Except the method that the foregoing description provides selects the audio call signaling to set up the call link; Can also the voice signaling mode that operator sets be solidificated in client identification module card (SIM; Subscriber Identity Model) in, bought the SIM of this operator as the user after, also just selected to set up the voice signaling mode of audio call; Another kind of mode is in portable terminal, to be configured, and particularly for the portable terminal of carrier customization, the voice signaling mode is set in the portable terminal manufacture process directly.Described voice signaling mode comprises traditional call control signalling, SIP signaling or IP-based call control signalling etc.; The voice signaling mode that can be portable terminal network support of living in is tabulated; Network of living in also can provide preferred voice signaling mode; Such as preferred voice signaling mode being placed on first of voice signaling tabulation, perhaps for every kind of signaling method assigned priority etc.

Please with reference to Fig. 4, the flow chart of method the 4th embodiment that sets up for audio call of the present invention.In the present embodiment, when portable terminal was attached to network, portable terminal carried the voice signaling mode that portable terminal is supported in sending to the Attach Request message of network.

Step 401: portable terminal Mobility Management Entity in network sends Attach Request message, requires to be registered in the network, carries the voice signaling mode that portable terminal is supported in the said Attach Request message;

Described voice signaling mode comprises traditional call control signalling, SIP signaling or IP-based call control signalling etc.; The voice signaling mode that described voice signaling mode can be the portable terminal support is tabulated, and comprises all or part voice signaling mode that portable terminal is supported.The precedence information that can comprise the voice signaling mode during said voice signaling mode is tabulated is such as being placed on preferred voice signaling mode first of voice signaling tabulation, perhaps for every kind of signaling method assigned priority etc.

Step 402: the portable terminal that said network adheres to request carries out authentication;

Step 402 can be selected to carry out.

Step 403: after authentication was passed through, Mobility Management Entity was initiated more new technological process of position to HLR/HSS, and obtained user's subscription data from HLR/HSS;

Mobility Management Entity is initiated the position more in the process of new technological process to HLR/HSS; Mobility Management Entity is carried at the voice signaling mode of portable terminal support and sends to HLR/HSS in the location update request message; After HLR/HSS receives location update request message, write down the voice signaling mode that its portable terminal that carries is supported; Perhaps; Mobility Management Entity is before sending location update request message to HLR/HSS; According to configured strategy, earlier from the voice signaling mode that portable terminal is supported, select a kind of or one group of voice signaling mode, and the voice signaling mode of selecting is sent to HLR/HSS carry out record.

Step 404: set up default bearer between mobile management entity and the packet gateway;

If the network that this portable terminal adheres to is grouping system (EPS, the Evolved PacketSystem) network of evolution, then in attaching process, need set up default bearer for this portable terminal.Therefore step 404 is optional.

Step 405: Mobility Management Entity sends the response message (promptly adhere to and accept message) of attach request to portable terminal, carries the voice signaling mode of network selecting in the response message of said attach request;

If in the step 403; Mobility Management Entity is carried at the voice signaling mode of portable terminal support and sends to HLR/HSS in the location update request message; Then Mobility Management Entity is according to the strategy of network configuration; Select a kind of or one group of voice signaling mode in the voice signaling mode that the portable terminal that from HLR/HSS, writes down is supported,, and send to portable terminal through the response message of attach request as the voice signaling mode of network selecting;

If in the step 403, Mobility Management Entity sends to HLR/HSS with the voice signaling mode of selecting and carries out record, and then Mobility Management Entity sends to portable terminal with the voice signaling mode of the said selection response message through attach request.

The strategy of network configuration is meant the operation strategy of operator's configuration; Such as two kinds of voice signaling modes are provided in the current carrier network: traditional call control signalling and SIP signaling; If operator feels progressively to discard the CS network, then this strategy can be configured to preferentially use the SIP signaling.Therefore, as long as UE supports the SIP signaling method, network just can preferentially be selected the SIP signaling method and notify UE.

Step 406: portable terminal returns to Mobility Management Entity and adheres to completion message.

Step 406 is optional.

Step 407: when the user made a call, portable terminal selected the relevant voice call signaling to set up call link according to the said voice signaling mode of record.

Please with reference to Fig. 5, the flow chart of method the 5th embodiment that sets up for audio call of the present invention.In the present embodiment, when portable terminal carries out the position update processing in network, also can the voice signaling mode of portable terminal support be sent to network.So-called position update processing is the more general designation of new technological process of multiple position in the present embodiment, specifically comprises circuit domain position more new technological process (Location Area Update), Routing Area Update flow process (Routing Area Update), tracing section updating flow process (Tracking Area Update) etc.

Step 501: portable terminal sends the location area updating request message through the Mobility Management Entity of new access network equipment to the reposition district, carries the voice signaling mode that portable terminal is supported in the said location area updating request message;

Step 502: the Mobility Management Entity in reposition district sends context request message, acquisition request user's context to the Mobility Management Entity of old lane place;

Step 503: the Mobility Management Entity of old lane place returns context response information to the Mobility Management Entity in reposition district, carries the voice signaling mode of the portable terminal support of writing down in user's MM Context, bearer context and the old lane place network in the said context response information;

The voice signaling mode that the portable terminal that writes down in the old lane place network in the step 503 is supported maybe be identical with the voice signaling mode that portable terminal in the step 501 is supported; Also maybe be different; If different, the Mobility Management Entity in reposition district with the voice signaling mode of portable terminal support in the step 501 as the current voice signaling mode of supporting of portable terminal.

Step 504: the Mobility Management Entity in reposition district carries out authentication to said portable terminal;

Step 504 is optional.

Step 505: the Mobility Management Entity in reposition district sends context acknowledgement message to the Mobility Management Entity of old lane place;

Step 506: set up default bearer between the mobile management entity in reposition district and the packet gateway;

If this user is attached to the EPS network, then in the MME in reposition district, also need set up default bearer for portable terminal.This step 506 is optional.

Step 507: the Mobility Management Entity in reposition district is initiated more new technological process of position to attaching position register, obtains user's subscription data;

The Mobility Management Entity in reposition district is initiated the position more in the process of new technological process to HLR/HSS; The Mobility Management Entity in reposition district is carried at the voice signaling mode of portable terminal support and sends to HLR/HSS in the location update request message; After HLR/HSS receives location update request message, write down the voice signaling mode that its portable terminal that carries is supported; Perhaps; The Mobility Management Entity in reposition district is before sending location update request message to HLR/HSS; According to configured strategy; Earlier from the voice signaling mode that portable terminal is supported, select a kind of or one group of voice signaling mode, and the voice signaling mode of selecting is sent to HLR/HSS carry out record.

Step 508: the Mobility Management Entity in reposition district sends location area updating request responding message (being that location area updating is accepted message) to portable terminal;

If in the step 507; The Mobility Management Entity in reposition district is carried at the voice signaling mode of portable terminal support and sends to HLR/HSS in the location update request message; Then the Mobility Management Entity in reposition district is according to the ability of the strategy and the portable terminal of network; Select a kind of or one group of voice signaling mode in the voice signaling mode that the portable terminal that from HLR/HSS, writes down is supported; As the voice signaling mode of network selecting, and send to portable terminal through location area updating request responding message;

If in the step 507; The Mobility Management Entity in reposition district sends to HLR/HSS with the voice signaling mode of selecting and carries out record, and then the Mobility Management Entity in reposition district sends to portable terminal with the voice signaling mode of said selection through location area updating request responding message.

Step 509: portable terminal upgrades to the Mobility Management Entity home position district in reposition district accomplishes message.

Step 509 is optional.

Step 510: when the user made a call, portable terminal selected the relevant voice call signaling to set up call link according to the said voice signaling mode of record.

Please with reference to Fig. 6, the flow chart of method the 6th embodiment that sets up for audio call of the present invention.In the present embodiment, portable terminal is as called, and the voice signaling mode of network based selection is connected with setting up to call out as callee's portable terminal.

Step 601: controlling call entity is received the call signaling that the calling subscriber sends;

Step 602: controlling call entity sends inquiry routing iinformation request message to HLR/HSS, obtains the routing iinformation as called subscriber's portable terminal;

Step 603:HLR/HSS sends the response message of inquiry routing iinformation to controlling call entity; Except comprising routing iinformation, can also comprise the voice signaling mode of supporting as called subscriber's portable terminal in the said response message as called subscriber's portable terminal;

Step 604: whether the voice signaling mode of judging controlling call entity place network matees with the voice signaling mode of supporting as called portable terminal, if then carry out step 605, if not, then carry out step 606;

Step 605: controlling call entity selects the voice signaling mode of current network and the portable terminal as the called subscriber to accomplish the call setup flow process.

Step 606: routing iinformation that controlling call entity provides according to HLR/HSS and the voice signaling mode of supporting as called subscriber's portable terminal; Select the mobile management entity in the network that the voice signaling mode of another and portable terminal support matees, to said mobile management entity forwarded call signaling;

Step 607: mobile management entity sends to the portable terminal as the called subscriber with the call signaling of receiving;

Step 608: after portable terminal is received said call signaling, accomplish the call setup flow process with network.

Please, be the structure chart of mobile network system first embodiment of the present invention with reference to Fig. 7.Said mobile network system comprises portable terminal 71 and the Mobility Management Entity 72 of mobile management is provided for portable terminal.

Said Mobility Management Entity 72 comprises dispensing unit 721, acquiring unit 722 and transmitting element 723.Said dispensing unit 721 is used to dispose current mobile network's voice signaling mode, and the current mobile network's who is disposed voice signaling mode is sent to the acquiring unit 722 of said Mobility Management Entity; Said acquiring unit 722 is used to obtain the current mobile network's of dispensing unit 721 configurations voice signaling mode; Said transmitting element 723 is used for sending the current mobile network's of acquiring unit voice signaling mode and gives portable terminal 71.

Said portable terminal 71 comprises receiving element 711, memory cell 712 and selected cell 713.Said receiving element 711 is used to receive the current mobile network's that the transmitting element 723 of said Mobility Management Entity 72 sent voice signaling mode; Said memory cell 712 is used to write down the current mobile network's that said receiving element 711 receives voice signaling mode; Said selected cell 713 is used for selecting the relevant voice call signaling to set up call link according to the current mobile network's of said memory cell 712 records voice signaling mode.

The transmitting element of said mobile management entity can comprise the attachment response transmitting element, and the attach request response message that is used to send the voice signaling mode of carrying attach to network is given the portable terminal of access to mobile network.The receiving element of said portable terminal comprises the attachment response receiving element, is used to receive the attach request response message of the voice signaling mode of carrying attach to network that the transmitting element of said mobile management entity sends.

The transmitting element of said mobile management entity can comprise position renewal response unit and judging unit.Said position is upgraded response unit and is used to send the portable terminal of the position updating request response message of the voice signaling mode of carrying attach to network to access to mobile network; Said judging unit is used to judge whether the voice-over-net signaling method in reposition district is identical with the voice-over-net signaling method of old lane place, if different, the voice signaling mode of then in upgrading request response, carrying reposition district network.The receiving element of said portable terminal comprises that the position upgrades the response receiving element, is used to receive the position updating request response message of the voice signaling mode of carrying reposition district network that the transmitting element of said mobile management entity sends.

The transmitting element of said mobile management entity can comprise handoff response unit and judging unit.Said switch unit is used to send the portable terminal of the handover request ack message of the voice signaling mode of carrying attach to network to access to mobile network; Said judging unit is used to judge whether the voice-over-net signaling method of destination is identical with the voice-over-net signaling method of source, if different, the voice signaling mode of then in upgrading request response, carrying the destination network.The receiving element of said portable terminal comprises the handoff response receiving element, is used to receive the handover request ack message of the voice signaling mode of carrying the destination network that the transmitting element of said mobile management entity sends.

Please, be the structure chart of mobile network system second embodiment of the present invention with reference to Fig. 8.Said mobile network system comprise portable terminal 81, for portable terminal provide mobile management Mobility Management Entity 82, the attaching position register 83 of user contracting data to Mobility Management Entity 82 is provided.

Said attaching position register 83 comprises dispensing unit 831, transmitting element 832.Said dispensing unit 83 1 is used to dispose current mobile network's voice signaling mode; Said transmitting element 832 is used to send user's subscription data and gives mobile management entity, and said user's subscription data carries the current mobile network's that dispensing unit 831 disposed voice signaling mode.

Said Mobility Management Entity 82 comprises receiving element 821, acquiring unit 822 and transmitting element 823.Said receiving element 821 is used to receive the user contracting data of the voice signaling mode of carrying current mobile network that attaching position register 83 sends, and said acquiring unit 822 is used to obtain the current mobile network's that receiving element 821 receives voice signaling mode; Said transmitting element 823 is used for sending the current mobile network's of acquiring unit 822 voice signaling mode and gives portable terminal 81.

Said portable terminal 81 comprises receiving element 811, memory cell 812 and selected cell 813.Said receiving element 811 is used to receive the current mobile network's that the transmitting element 823 of said Mobility Management Entity 82 sent voice signaling mode; Said memory cell 812 is used to write down the current mobile network's that said receiving element 811 receives voice signaling mode; Said selected cell 813 is used for selecting the relevant voice call signaling to set up call link according to the current mobile network's of said memory cell 812 records voice signaling mode.

Please, be the structure chart of mobile network system the 3rd embodiment of the present invention with reference to Fig. 9.Said mobile network system comprise portable terminal 91, for portable terminal provide mobile management Mobility Management Entity 92, cooperate Mobility Management Entity 92 to set up the packet gateway 93 of default bearer.

Said packet gateway 93 comprises dispensing unit 931, transmitting element 932.Said dispensing unit 931 is used to dispose current mobile network's voice signaling mode; Said transmitting element 932 is used for sending to be set up default bearer message and gives mobile management entity, saidly sets up the voice signaling mode that default bearer message is carried the current mobile network that dispensing unit 931 disposed.

Said Mobility Management Entity 92 comprises receiving element 921, acquiring unit 922 and transmitting element 923.Said receiving element 921 is used to receive the current mobile network's that packet gateway 93 sends voice signaling mode, and said acquiring unit 922 is used to obtain the current mobile network's that receiving element 921 receives voice signaling mode; Said transmitting element 923 is used for sending the current mobile network's of acquiring unit 922 voice signaling mode and gives portable terminal 91.

Said portable terminal 91 comprises receiving element 911, memory cell 912 and selected cell 913.Said receiving element 911 is used to receive the current mobile network's that the transmitting element 923 of said Mobility Management Entity 92 sent voice signaling mode; Said memory cell 912 is used to write down the current mobile network's that said receiving element 911 receives voice signaling mode; Said selected cell 913 is used for selecting the relevant voice call signaling to set up call link according to the current mobile network's of said memory cell 912 records voice signaling mode.

Please, be the structure chart of mobile network system the 4th embodiment of the present invention, corresponding to the method the 4th and the 5th embodiment of audio call foundation of the present invention with reference to Figure 10.Said mobile network system comprises portable terminal X1 and the Mobility Management Entity Y1 of mobile management is provided for portable terminal.

Said portable terminal X1 comprises memory cell X11, transmitting element X12 and receiving element X13.Said memory cell X11 is used for the voice signaling mode that memory mobile terminal is supported; Said transmitting element is used for sending the voice signaling mode that memory cell X11 mobile terminals stored supported and gives mobile management entity Y1; Said receiving element X13 is used to receive the voice signaling mode that said Mobility Management Entity Y1 selects portable terminal.

Said Mobility Management Entity Y1 comprises receiving element Y11, selected cell Y12 and transmitting element Y13.Said receiving element Y11 is used for the voice signaling mode that portable terminal that mobile terminal receive sends is supported; Said selected cell Y12 is used for the strategy according to network configuration, from the voice signaling mode that portable terminal is supported, selects a kind of or one group of voice signaling mode; Said transmitting element Y13 sends to portable terminal X1 with the selected voice signaling mode of selected cell Y12.

The transmitting element of said portable terminal can comprise the attach request transmitting element; The Attach Request message that is used to send the voice signaling mode of carrying the portable terminal support is given mobile management entity; The receiving element of said mobile management entity can comprise the attach request receiving element, is used to receive that said portable terminal sends carries the Attach Request message of the voice signaling mode that portable terminal supports; The transmitting element of said mobile management entity can comprise the attachment response transmitting element; The attachment response message that is used to send the mobile terminal sound signaling method that carries user's network selecting of living in is given portable terminal; The receiving element of said portable terminal can comprise the attachment response receiving element, is used to receive the attachment response message of the mobile terminal sound signaling method that carries user's network selecting of living in that the transmitting element of said mobile management entity sends.

The transmitting element of said portable terminal can comprise the position updating request transmitting element; The location area updating request message that is used to send the voice signaling mode of carrying the portable terminal support is given mobile management entity; The receiving element of said mobile management entity can comprise the position updating request receiving element, is used to receive that said portable terminal sends carries the location update request message of the voice signaling mode that portable terminal supports; The transmitting element of said mobile management entity can comprise position renewal response transmitting element; The location area updating response message that is used to send the mobile terminal sound signaling method that carries user's network selecting of living in is given portable terminal; The receiving element of said portable terminal can comprise that the position upgrades the response receiving element, and response message is upgraded in the position that is used to receive the mobile terminal sound signaling method that carries user's network selecting of living in that the transmitting element of said mobile management entity sends.Described position updating request and response are general designations, specifically can comprise request of CS location area updating and response, Routing Area Update request and response, and tracing section updating request and response etc.

Please, be the structure chart of mobile network system the 5th embodiment of the present invention, corresponding to method the 6th embodiment of audio call foundation of the present invention with reference to Figure 11.Said mobile network system comprises controlling call entity A1 and the attaching position register B1 of mobile management is provided for portable terminal.

Said controlling call entity A1 comprises receiving element A11, query unit A12, acquiring unit A13, storage unit A 14 and judging unit A15.Said receiving element A11 is used to receive the call signaling that carries as called information of mobile terminal; Said query unit A12 is used for the call signaling that received according to receiving element A11, sends the request of inquiry as the routing iinformation of called portable terminal to attaching position register B1; Said acquiring unit A13 is used to receive the query response message that attaching position register B1 returns, and said query response message carries the routing iinformation of portable terminal and the voice signaling mode of support; Said storage unit A 14 is used for the voice signaling mode of stored calls controlled entity place network and the voice signaling mode of other networks; Said judging unit A15 is used to judge whether the voice signaling mode of controlling call entity place network matees with the voice signaling mode of supporting as called portable terminal; If; Then select the voice signaling mode of current network to accomplish the call setup flow process with portable terminal as the called subscriber; If not, the network that the voice signaling mode of then forwarded call signaling to another and portable terminal support is mated.

Said attaching position register B1 comprises memory cell B11, receiving element B12 and transmitting element B13.Said memory cell B11 is used to store the voice signaling mode that current mobile terminal is supported; Said receiving element B12 is used to receive the request message of the inquiry routing iinformation that said controlling call entity A1 sends; Said transmitting element B13 is used for the request message according to the inquiry routing iinformation of receiving element B12 reception; Send query response message and give controlling call entity A1, the voice signaling mode of mobile terminals stored support among the routing iinformation that said query response message carries portable terminal and the memory cell B11.

Said portable terminal among the present invention comprises that also all can utilize mobile communications network to carry out the subscriber equipment of speech business except comprising traditional mobile phone that carries out speech business.For example, when the user is linked into the mobile network through data card, but speech business software is by computer simulation, and also can accomplish communication through the mobile network this moment, and subscriber equipment is the computer that said completion communication is used.

In sum; Method that the audio call that provides through the embodiment of the invention is set up and mobile management entity, subscriber equipment; Can the voice signaling mode of user's network of living in be sent to subscriber equipment, subscriber equipment can select suitable voice signaling mode to set up call link according to the voice signaling mode of network of living in, therefore need not in user's presence, to adopt the different voice signaling method; Reduced the complexity that the user uses terminal equipment, for the user brings convenience in the use; Method that the audio call that provides through the embodiment of the invention is set up and mobile management entity, subscriber equipment; Subscriber equipment can send to user's network of living in the voice signaling mode of supporting; The voice signaling mode that user's network selecting of living in is suitable returns to subscriber equipment; Subscriber equipment adopts the voice signaling mode of user's network selecting of living in to set up call link; Therefore need not employing different voice signaling method under user's participation, reduced the complexity that the user uses terminal equipment, for the user brings convenience in the use.The embodiment of the invention is also reused existing network equipment for operator, and carrying out network design according to the operation policy-flexible provides technical foundation.And the method that the audio call that provides through the embodiment of the invention is set up; When subscriber equipment when called; Controlling call entity can be known the voice signaling mode that subscriber equipment is supported, therefore can select suitable voice signaling to accomplish the subsequent voice Business Processing.

More than method that a kind of audio call provided by the present invention is set up and mobile management entity, subscriber equipment carried out detailed introduction; Used concrete example among this paper principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used to help to understand disclosed technical scheme; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.

Claims

1. the method set up of an audio call is characterized in that said method comprises:

Mobility Management Entity sends to subscriber equipment with the employed voice signaling mode of user's network of living in; Subscriber equipment receives and writes down said voice signaling mode; When the user made a call, subscriber equipment was selected the relevant voice call signaling according to said voice signaling mode; And use selected audio call signaling to make a call.

2. the method that audio call according to claim 1 is set up is characterized in that the voice signaling mode of said user network of living in is configured in the Mobility Management Entity.

3. the method that audio call according to claim 1 is set up; It is characterized in that; The voice signaling mode of said user network of living in is configured in attaching position register or the packet gateway, and mobile management entity obtains and preserve the voice signaling mode of user's network of living in from attaching position register or packet gateway.

4. the method for setting up according to claim 2 or 3 described audio calls is characterized in that, the detailed process that the voice signaling mode of user's network of living in is sent to subscriber equipment comprises:

Subscriber equipment sends Attach Request message to Mobility Management Entity;

Mobility Management Entity sends the attach request response message of the voice signaling mode of carrying attach to network and gives subscriber equipment.

5. the method for setting up according to claim 2 or 3 described audio calls is characterized in that, the detailed process that the voice signaling mode of user's network of living in is sent to subscriber equipment comprises:

Subscriber equipment sends the location area updating request message to the mobile management entity in reposition district;

The Mobility Management Entity in reposition district sends the position updating request response message of the voice signaling mode of carrying reposition district network and gives subscriber equipment.

6. the method that audio call according to claim 5 is set up is characterized in that, the Mobility Management Entity in reposition district sends the position updating request response message of the voice signaling mode of carrying reposition district network and also comprises for subscriber equipment before:

Judge whether the voice-over-net signaling method that writes down in the Mobility Management Entity of the voice-over-net signaling method that writes down in the Mobility Management Entity in reposition district and old lane place is identical; If different, as then in upgrading request response, to carry reposition district network voice signaling mode.

7. the method for setting up according to claim 2 or 3 described audio calls is characterized in that, the detailed process that the voice signaling mode of user's network of living in is sent to subscriber equipment comprises:

Subscriber equipment sends handoff request message to the source Mobility Management Entity;

The source Mobility Management Entity sends the voice signaling mode switching command message of carrying the destination network and gives subscriber equipment.

8. the method that audio call according to claim 7 is set up is characterized in that, the source Mobility Management Entity sends the voice signaling mode switching command message of carrying the destination network and also comprises for subscriber equipment before:

Judge whether the voice-over-net signaling method that writes down in the voice-over-net signaling method that writes down in the destination Mobility Management Entity and the source Mobility Management Entity is identical, if different, the voice signaling mode of then in switching command message, carrying the destination network.

9. the method set up of an audio call is characterized in that said method comprises:

Subscriber equipment sends the voice signaling mode that this subscriber equipment is supported to user's network of living in; Subscriber equipment receives the voice signaling mode that the residing network based configured strategy of user is selected;

10. the method that audio call according to claim 9 is set up is characterized in that,

The residing network based configured strategy of user is selected the voice signaling mode from the voice signaling mode that the subscriber equipment that receives is supported.

11. the method that audio call according to claim 10 is set up is characterized in that, subscriber equipment to the concrete mode of voice signaling mode that user's network of living in sends this subscriber equipment support is:

Mobility Management Entity receives the Attach Request message that subscriber equipment sends in user's network of living in, carries the voice signaling mode that subscriber equipment is supported in the said Attach Request message;

Subscriber equipment receives the concrete mode of said voice signaling mode:

Mobility Management Entity is selected the voice signaling mode according to configured strategy in user's network of living in, and the voice signaling mode that the response message through attach request carries selection returns to subscriber equipment.

12. the method that audio call according to claim 10 is set up is characterized in that, the residing network based configured strategy of said user is selected the voice signaling mode, the voice signaling mode of selecting is returned to subscriber equipment also comprise before:

The Mobility Management Entity in reposition district sends context request message, acquisition request user's context to the Mobility Management Entity of old lane place;

The Mobility Management Entity of old lane place returns context response information to the Mobility Management Entity in reposition district, carries the voice signaling mode of the subscriber equipment support of writing down in the network of old lane place in the said context response information.

13. the method that audio call according to claim 10 is set up is characterized in that, the residing network based configured strategy of said user is selected the voice signaling mode, the voice signaling mode of selecting is returned to subscriber equipment also comprise before:

The Mobility Management Entity in reposition district is initiated location update request message to attaching position register, carries the voice signaling mode that subscriber equipment is supported.

14. the method that audio call according to claim 10 is set up is characterized in that, the concrete mode of voice signaling mode that the residing network reception of user subscriber equipment is supported is:

The Mobility Management Entity in reposition district receives the location area updating request message that subscriber equipment sends in user's network of living in, carries the voice signaling mode that subscriber equipment is supported in the said location area updating request message;

The residing network based configured strategy of user is selected the voice signaling mode, the voice signaling mode of selecting is returned to the concrete mode of subscriber equipment be:

The Mobility Management Entity in reposition district is selected the voice signaling mode according to configured strategy in the residing network of user, and the voice signaling mode that the response message through position updating request carries selection returns to subscriber equipment.

15. the method according to the described audio call of arbitrary claim in 9 to 14 is set up is characterized in that, said voice signaling mode is tabulation.

16. the method that audio call according to claim 15 is set up is characterized in that said tabulation also comprises the precedence information of voice signaling mode.

17. the method that audio call is set up is characterized in that said method comprises:

18. the method that audio call according to claim 17 is set up is characterized in that, controlling call entity receives the voice signaling mode of supporting as called subscriber equipment and specifically comprises:

Controlling call entity sends inquiry routing iinformation request message to attaching position register, obtains the routing iinformation as called subscriber's subscriber equipment;

Attaching position register sends the response message of inquiring about routing iinformation to controlling call entity, comprises in the said response message as the routing iinformation of called subscriber equipment and the voice signaling mode of supporting as called subscriber equipment.

19. a mobile management entity, the subscriber equipment that is used to access to mobile network provides the mobile management service, it is characterized in that, comprising:

20. mobile management entity according to claim 19 is characterized in that, also comprises dispensing unit, is used to dispose current mobile network's voice signaling mode, and the current mobile network's who is disposed voice signaling mode is sent to said acquiring unit.

21. mobile management entity according to claim 19; It is characterized in that; Also comprise receiving element; Be used to receive voice signaling mode, and the current mobile network's who is received voice signaling mode is sent to said acquiring unit from the current mobile network of attaching position register or packet gateway transmission.

22. mobile management entity according to claim 19 is characterized in that, said transmitting element comprises the attachment response transmitting element, and the attach request response message that is used to send the voice signaling mode of carrying attach to network is given the subscriber equipment of access to mobile network.

23. mobile management entity according to claim 19; It is characterized in that; Said transmitting element comprises position renewal response transmitting element, and the position updating request response message that is used to send the voice signaling mode of carrying reposition district network is given the subscriber equipment of access to mobile network.

24. mobile management entity according to claim 23; It is characterized in that; Said transmitting element also comprises judging unit; Be used to judge whether the voice-over-net signaling method in reposition district is identical with the voice-over-net signaling method of old lane place, if different, the voice signaling mode of then in upgrading request response, carrying reposition district network.

25. mobile management entity according to claim 19; It is characterized in that; Said transmitting element comprises the handoff response transmitting element, and the handover request ack message that is used to send the voice signaling mode of carrying the destination network is given the subscriber equipment of access to mobile network.

26. mobile management entity according to claim 25; It is characterized in that; Said transmitting element also comprises judging unit; Be used to judge whether the voice-over-net signaling method of destination is identical with the voice-over-net signaling method of source, if different, the voice signaling mode of then in upgrading request response, carrying the destination network.

27. a subscriber equipment is used for the access communications network and sets up network with other communication equipment being connected, thereby realizes communication, it is characterized in that, comprising:

28. subscriber equipment according to claim 27 is characterized in that, said receiving element comprises the attachment response receiving element, is used to receive the attach request response message of the voice signaling mode of carrying attach to network.

29. subscriber equipment according to claim 27 is characterized in that, said receiving element comprises position renewal response receiving element, is used to receive the position updating request response message of the voice signaling mode of carrying reposition district network.

30. subscriber equipment according to claim 27 is characterized in that, said receiving element comprises the handoff response receiving element, is used to receive the handover request ack message of the voice signaling mode of carrying the destination network.

31. a mobile management entity, the subscriber equipment that is used to access to mobile network provides the mobile management service, it is characterized in that, comprising:

32. mobile management entity according to claim 31 is characterized in that, said receiving element comprises:

The attach request receiving element is used to receive that subscriber equipment sends carries the Attach Request message of the voice signaling mode that subscriber equipment supports;

The attachment response transmitting element, the attachment response message that is used to send the current mobile network's who carries user's network selecting of living in voice signaling mode is given subscriber equipment.

33. mobile management entity according to claim 31 is characterized in that, said receiving element comprises:

The position updating request receiving element is used to receive that said subscriber equipment sends carries the location update request message of the voice signaling mode that subscriber equipment supports;

The response transmitting element is upgraded in the position, and the location area updating response message that is used to send the subscriber equipment voice signaling mode of carrying user's network selecting of living in is given subscriber equipment.

34. a subscriber equipment is used for the access communications network and sets up network with other communication equipment being connected, thereby realizes communication, it is characterized in that, comprising:

35. subscriber equipment according to claim 34 is characterized in that, said transmitting element comprises:

The attach request transmitting element, the Attach Request message that is used to send the voice signaling mode of carrying the subscriber equipment support is given mobile management entity;

The attachment response receiving element is used to receive the attachment response message of the subscriber equipment voice signaling mode of carrying user's network selecting of living in that the transmitting element of said mobile management entity sends.

36. subscriber equipment according to claim 34 is characterized in that, said transmitting element comprises:

The position updating request transmitting element, the location area updating request message that is used to send the voice signaling mode of carrying the subscriber equipment support is given mobile management entity;

The response receiving element is upgraded in the position, and response message is upgraded in the position that is used to receive the subscriber equipment voice signaling mode of carrying user's network selecting of living in that the transmitting element of said mobile management entity sends.

37. a controlling call entity is used for control is called out in the communication between the user terminal, it is characterized in that, comprising:

38. according to the described controlling call entity of claim 37, it is characterized in that, also comprise:

Memory cell is used for the voice signaling mode of stored calls controlled entity place network and the voice signaling mode of other networks.