CN101588599A

CN101588599A - Method for realizing domain selection, method for managing mobility and control gateway

Info

Publication number: CN101588599A
Application number: CNA2009101500511A
Authority: CN
Inventors: 叶进洲
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-06-30
Filing date: 2009-06-30
Publication date: 2009-11-25
Anticipated expiration: 2029-06-30
Also published as: CN101588599B

Abstract

The invention relates a method for realizing domain selection in a communication system, a method for managing mobility and a control gateway based on a packet switching PS domain speech service. The method for realizing domain selection comprises: receiving message commands sent by an IP generalized access network; converting and matching the message commands; determining the service types of the converted and matched message commands; selecting a network domain according to the service types; mapping the message commands into the command messages of the selected network domain; and sending the mapped message commands. In the invention, the smooth development of IMS is achieved and the utilization ratio of wireless bandwidth resource is improved by adding the network domain selection function and providing the application ability of multimedia.

Description

Realize method, motion management method and control gateway that the territory is selected

Technical field

The present invention relates to the mobile communication technology field, realize in particularly a kind of communication system that method, the motion management method selected in the territory reach the control gateway based on packet switching PS territory speech business.

Background technology

Development along with mobile communication technology, wideband wireless mobile communication evolution path has formed serial standard at the 3GPP tissue, Long Term Evolution (LTE, Long-Term Evolution) system is more and more approved, and become mainstream technology to 4G evolution, come into effect commercial the deployment at present in some country.

In LTE, continue as the LTE WiMAX by core network CS traditional speech business is provided, for the succession that guarantees business network, gradual development and operator originally in the investment of CS network, promoted general access technology that the development of speech business (VoLGA, the Voice over LTE via GenericAccess) technology of LTE is provided.Wherein, in the VoLGA technology, with of the IP carrying of LTE/SAE network as WiMAX, in VoLGA, introduced new general access network controller (GANC, GenericAccess Network Controller), this GANC is used for realizing the passage foundation of portable terminal application layer and core network MSC application layer, and promptly application layers such as the CC/SS/SMS of MS mobile phone side and MM have been set up the communication port of MSC peer-entities; In addition, on GANC, adaptive have the A interface of similar BSC or the RANAP interface of RNC, so that carry out information interaction with MSC, i.e. and Iu-CS/A interface; And by Z2 interface on the GANC and MME realization switching characteristic, for LTE user provides CS speech business.

In the VoLGA technology, though this GANC can keep the consistency of core network CS interface well, the business experience inheritance, operation and maintaining network influence also can reduce to minimum, still, in research and practice process to prior art, the present inventor finds, in existing implementation, can only provide the speech business of CS, can not provide the speech business of other networks, such as IMS etc.That is to say, in existing VoLGA,, providing of multimedia service formed restriction though the problem that provides of traditional voice service (CS speech business) has been provided.

Summary of the invention

The embodiment of the invention provides and realizes in a kind of communication system that method, the motion management method selected in the territory reach the control gateway based on packet switching PS territory speech business, selects function by increasing network domains, and the application power of multiple business is provided.

For solving the problems of the technologies described above, the embodiment of the invention provides and realizes the method that the territory is selected in a kind of communication system, and described method comprises:

Receive the information order that the IP general access network sends, and information order is changed and mated;

Determine the type of service of the described information order of conversion and coupling back, and select network domains according to described type of service;

Described information order is mapped as the command messages of selected network domains, sends the information order after the described mapping.

The embodiment of the invention provides a kind of motion management method, and described method comprises:

The needs that receive the network side transmission obtain the positional information of initial session protocol sip terminal;

The positional information that described needs obtain is carried out logic determines, and from mobile management entity MME, obtain the positional information of described sip terminal by the Sv interface;

Described positional information is mapped as the positional information that network side can be discerned, and sends the positional information after the mapping.

Accordingly, the embodiment of the invention also provides a kind of control gateway based on packet switching PS territory speech business, comprising:

Call out control and mobile processing unit, be used to receive the information order that the IP general access network sends, and described information order is changed and mated;

Service logic decision-making and network domains menu unit, the type of service that is used for determining conversion and mates the described information order in back, and according to described type of service selection network domains; And after described information order being mapped as the command messages of selected network domains, send the information order after the described mapping.

As shown from the above technical solution, after the embodiment of the invention is introduced network domains on based on the control gateway of packet switching PS territory speech business and is selected function, when ensureing terminal use CS voice service, can provide the application of multiple business (such as multimedia service).

Description of drawings

Fig. 1 is for the flow chart of the method that the territory is selected is provided in a kind of communication system that provides in the embodiment of the invention;

Realize first application example of the method that the territory is selected in a kind of communication system that Fig. 2 provides for the embodiment of the invention;

Realize second application example of the method that the territory is selected in a kind of communication system that Fig. 3 provides for the embodiment of the invention;

Realize the 3rd application example of the method that the territory is selected in a kind of communication system that Fig. 4 provides for the embodiment of the invention;

The flow chart of a kind of motion management method that Fig. 5 provides for the embodiment of the invention;

The application example figure of a kind of motion management method of providing in the embodiment of the invention is provided Fig. 6;

The structural representation of a kind of control gateway based on packet switching PS territory speech business of providing in the embodiment of the invention is provided Fig. 7;

Another structural representation of a kind of control gateway based on packet switching PS territory speech business of providing in the embodiment of the invention is provided Fig. 8;

Fig. 9 is provided for the enhancement mode of a kind of VoLGA of providing in the embodiment of the invention by the structural representation of system.

Embodiment

The embodiment of the invention proposes to realize in a kind of communication system that method, the motion management method selected in the territory reach the control gateway based on packet switching (PS, Packet Switched) territory speech business.Speech business (the 3GPP VoLGA of LTE is provided in the general access technology that satisfies the 3G (Third Generation) Moblie partnership projects, Third Generation Partnership Project-Voice over LTE via Generic Access) the main aim of series of canonical the time, to existing techniques in realizing the part enhancement function, realizing circuit switching (CS, Circuit Switched) on the basis of speech business, the control ability of multimedia application is provided, and select function by the core network domain of this enhancing, be implemented to IP Multimedia System (IMS, IP multimediasubsystem) network evolution and commercial flatness of disposing.

Further, the embodiment of the invention also adopts initial session protocol (SIP, Session InitiatedProtocol), guarantees that terminal is easy to acquired and higher commercial maturity, provides the basis to the evolution of IMS network simultaneously as the agreement of terminal applies layer; At existing general access network controller (GANC, Generic Access Network Controller) goes up introducing CN territory and select function, guarantee that the CN side business provides the variation of network not exert an influence to inserting side, thereby guarantee terminal use's investment, provide flexible way for this access controller smooth evolution for the network element of IMS simultaneously; In order to narrate conveniently, the GANC that the embodiment of the invention will possess enhancement function is called the control gateway (VoPS-GW, Voice Over Packet Service GateWay) based on packet switching PS territory speech business.

In order to make those skilled in the art person understand technical scheme in the embodiment of the invention better, and the above-mentioned purpose of the embodiment of the invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing technical scheme in the embodiment of the invention is described in further detail.

See also Fig. 1, for the flow chart of the method that the territory is selected is provided in a kind of communication system that provides in the embodiment of the invention, described method comprises:

Step 101: receive the information order that IP general access network (IPCAN, IP-ConnectivityAccess Network) sends, and information order is changed and mated;

In this step, can receive the information order that the IP general access network sends based on the control gateway of packet-switched domain speech business, can be to receive the information order that session initiation protocol terminal sends by the IP general access network.

Wherein, this information order can be: receive SIP call control signalling or the register requirement that sip terminal sends by the IP general access network by Z1 (Gm) interface, and/or receive the switching of MME transmission and mobile management message (such as the positional information of sip terminal etc.) by Z2 (Sv) interface.

Need to prove, in 3GPP, defined the Z1 interface, can only realize general calling control signaling between terminal and network are then by this Z1 interface, but in the embodiment of the invention, because with terminal modifications is sip terminal, then Chuan Shu signaling is the SIP call control signalling, thereby the Z1 interface is developed into Gm;

In 3GPP, simultaneously also defined the Z2 interface, essence is exactly Sv interface (only defining switching part), but the embodiment of the invention is expanded it, not only original hand off signaling can be comprised, but also the mobile management (such as positional information etc.) of expansion can be comprised.

Step 102: determine the type of service of the described information order of conversion and coupling back, and select default network domains according to described type of service;

In this step, default network domains can comprise: CS territory, core network domain and/or IMS domain, but be not limited to this.

VoPS-GW can judge the type of service of the information order after conversion and the coupling earlier, and its judgment mode can then, be selected default network domains according to described type of service according to configuration and the local policy according to operator; Such as, if the type of service of this information order is speech business, then select the CS territory; If its type of service is the IMS business, then select IMS territory etc.

Step 103: described information order is mapped as the command messages of selected network domains, sends the information order after the described mapping.

In this step, the professional ability that VoPS-GW need provide according to selected network is carried out the adaptive of signaling, is about to the command messages that described information order is mapped as selected network domains, afterwards the information order after the described mapping is sent to the network of network domains correspondence.

Preferably, described method can further include: receive the information order response message that network side sends; After described command response message conversion is the command response message that can discern of sip terminal, send to this sip terminal by the IP general access network.

Be VoPS-GW after receiving the information order response message that network side sends, now be converted into the command response message that sip terminal can be discerned, send to this sip terminal by the IP general access network again.

Need to prove, in the present embodiment, this IP general access network can comprise: Long Term Evolution/senior Long Term Evolution (LTE/SAE, Long Term Evolution/) network, high speed downlink packet inserts (HSDPA, High Speed Downlink Package Access) network, data-optimized network (the EVDO of evolution, Evolution-Data Optimized,), WLAN (wireless local area network) (WLAN, Wireless LocalArea Network) or World Interoperability for Microwave Access, WiMax (Wimax), but be not limited to this, can be other IP general access network, present embodiment limit yet.

Preferably, described method can further include:

Receive network side and send the positional information that to obtain sip terminal;

The positional information that described needs obtain is carried out logic determines, and from described mobile management entity MME, obtain the positional information of described sip terminal by the Sv interface;

The problem that the embodiment of the invention exists at existing VoLGA technology, and, realized the part enhancement function safeguarding on original fundamental interests basis of operator and terminal use; Such as after the introducing network domains is selected function on the VoPS-GW, solved in the existing scheme LTE/SAE broadband wireless wasting of resources problem, and the problem that is difficult to improve investment return, when ensureing terminal use CS voice service, the application of multimedia and data service can be provided, realize smooth evolution to IMS; And the utilance that improves wireless bandwidth resource.Also enrich simultaneously terminal use's business experience, increased the telephone traffic of carrier network.

Wherein, because SIP is in the extensive use in IP field, especially in the application in IMS territory, guaranteed its flatness to the evolution of IMS objective network, after the IMS network obtained ripe the application, the terminal use can not be subjected to core network device and change the influence that causes, on the other hand based on the SIP control ability that has existed, GANC with enhancing ability can be good at being evolved to P-CSCF, becomes the indispensable network element of IMS network.

The embodiment of the invention further also solves the problem of terminal availability difference owing to introduced sip terminal.That is to say, SIP as call control protocol end to end, is admitted because it in the application in IP field more and more widely, has obtained in the communication industry the consistent of all producers.According to 3GPP MMTEL standard, it calls out control ability can realize all CS voice basic service and supplementary services, therefore, adopts SIP to insert the advantage that the side call control protocol possesses skills upward and industrial chain is supported as IPCAN.

Because the embodiment of the invention is based on SIP, multimedia application power also is provided, improve the wireless bandwidth resource utilance: because SIP is to the good support of multimedia application, created advantage on the LTE/SAE WiMAX, carrying out multimedia service, on GANC, provide the CN territory to select function with enhancing ability, the multimedia service that makes some have using value can be obtained disposing in advance, both, also brought new revenue source simultaneously for operator for the terminal use brings new business experience;

Also see also Fig. 2, realize first application example of the method that the territory is selected in a kind of communication system that the embodiment of the invention provides, in the present embodiment, with the process that realizes that sip terminal registration and position, CS territory are upgraded, wherein, IP-CAN is example with LTE/MME, but be not limited to this, comprise:

Step 201:UE successfully adheres at IP-CAN;

Be to comprise respectively between UE and the LTE/MME setting up the operation that RRC connects, GPRS adheres to success and PDP context activation;

Step 202:UE sends login request message (SIP register) by SIP to VoPS-GW;

Step 203:VoPS-GW is converted into the login request message that receives the location update message in CS territory;

Step 204:VoPS-GW sends to the location update message in CS territory the MSC of CN;

Step 205:MSC sends authentication request message to VoPS-GW;

Step 206:VoPS-GW is converted to the 3 tuple challenges of CS the 5 tuple challenges of SIP after receiving described authentication request message; Wherein, the authentication challenge has been a known technology for those skilled in the art, does not repeat them here.

Step 207:VoPS-GW sends SIP authentication challenge request message to UE, comprises the 5 tuple challenges (RAND, AUTN, CKSN) of described SIP;

Step 208:UE sends registration challenge responses message to VoPS-GW, comprises XRES;

The registration challenge responses that step 209:VoPS-GW will receive converts the authentication response message of CS to;

Step 210:VoPS-GW sends the authentication response message of described CS to the MSC of CN;

Step 211:MSC sends the position renewal to VoPS-GW and accepts message;

Step 212:VoPS-GW sends the response message that succeeds in registration to UE.

Also see also Fig. 3, second application example of the method that the territory is selected is provided in a kind of communication system that provides for the embodiment of the invention, in the present embodiment, function is selected in main VoPS-GW calling procedure and the CN territory of realizing, wherein, the IP general access network is an example with LTE/SAE, but is not limited to this, comprising:

Step 301:UE initiates the SIP call request message to VoPS-GW; Be that UE makes a call at IP-CAN;

Step 302:VoPS-GW is after receiving the SIP call request message, according to the signaling of SIP aspect and the description of SDP, the coupling business rule is selected network, and judges that the type of service of SIP call request message is speech business, and select CS MSC to provide professional, finish the CN territory and select enhancement function; And the call setup request message (CS Setup) that the SIP call request message is mapped as circuit domain;

Step 303:VoPS-GW sends the call setup request message of described circuit domain to the MSC of CN;

The MSC of step 304:CN sends the call treatment response message to VoPS-GW; Wherein, before the step 303 and 304, VoPS-GW sets up being connected of Iu-CS with MSC;

Finish the RAB resource of Iu-CS between step 305:MSC and the VoPS-GW and set up process; This process has been a known technology for those skilled in the art, does not repeat them here.

Step 306:VoPS-GW sends SIP call message to UE; Be that VoPS-GW finishes CS MSC and SIP and calls out the continue conversion of signaling of control subsequent voice calls, successfully set up and call out.

Also see also Fig. 4, realize the 3rd application example of the method that the territory is selected in a kind of communication system that provides for the embodiment of the invention, in the present embodiment, the main VoPS-GW called flow of realizing, wherein, the IP general access network is an example with LTE/SAE, but is not limited to this.After the link establishment of the wireless access network applying portion (RANAP, Radio Access Network Application Part) of VoPS-GW and MSC, comprising:

Step 401:MSC is accomplished to the Iu-CS establishment of connection of VoPS-GW;

Step 402:MSC sends paging request (Paging) message to VoPS-GW;

After step 403:VoPS-GW receives Paging message, directly dress up page response (PagingRsp) message according to the SIP state group;

Step 404:VoPS-GW sends page-response message to MSC;

Step 405:MSC sends CS territory call setup request message to VoPS-GW;

Step 406:VoPS-GW is converted into SIP with the call setup request message of receiving and calls out the request of initiation;

Step 407:VoPS-GW sends SIP to UE and calls out the request of initiation;

Step 408:VoPS-GW sends the CS territory to MSC and calls out acknowledge message;

Finish the foundation of RAB resource between step 409:VoPS-GW and the MSC;

Step 410:UE sends SIP successful connection request to VoPS-GW;

Step 411:VoPS-GW calls out the SIP that receives to the successful connection request and is converted into the calling successful connection request of CS territory;

Step 412:VoPS-GW sends the CS territory to MSC and calls out the successful connection request.

Accordingly, the embodiment of the invention also provides a kind of motion management method, its flow chart as shown in Figure 5, described method comprises:

Step 501: receive network side and send the positional information that to obtain sip terminal;

Step 502: the positional information that described needs obtain is carried out logic determines, and from described mobile management entity MME, obtain the positional information of described sip terminal by the Sv interface;

Step 503: described positional information is mapped as the positional information that network side can be discerned, and sends the positional information after the mapping.

For the ease of understanding, illustrate with concrete application example below.

See also Fig. 6, the application example figure of a kind of motion management method of providing in the embodiment of the invention is provided; In the present embodiment, mainly realize VoPS-GW by expanding the process that the Sv interface obtains the positional information of sip terminal, wherein, the IP general access network is an example with LTE/MME, but is not limited to this.After the link establishment of the RANAP of VoPS-GW and MSC, comprising:

Step 601:MSC sends position message control request message by Iu-CS interface to VoPS-GW, comprises the positional information of obtaining sip terminal;

Step 602:VoPS-GW is after receiving described position message control request message, and judging whether needs to trigger the Sv interface, and if desired, then execution in step 603; Otherwise process ends (not shown);

Step 603:VoPS-GW is converted into the positional information control request that MME can discern with described position message control request;

Step 604:VoPS-GW sends positional information control request message by the Sv interface to MME;

That is to say that VoPS-GW adopts the Sv interface of extended capability, by MME realize and ERAN alternately, finish that location information is obtained or the control of ability.

Step 605:MME sends positional information control response message to VoPS-GW;

Step 606:VoPS-GW is the position message control response message that MSC can discern with the positional information control response message transformation that receives;

Step 607:VoPS-GW sends position message control response message to MSC.

Based on the implementation procedure of said method, the embodiment of the invention also provides a kind of control gateway based on packet switching PS territory speech business, and its structural representation sees Fig. 7 for details, and described control gateway comprises: call out control and mobile processing unit (Call control﹠amp; Mobility logic processing) 71 and service logic decision-making and (the Service logic decision﹠amp of network domains menu unit; CN selection) 72, wherein,

This calls out control and mobile processing unit 71, is used to receive the information order of IP general access network transmission, and described information order is changed and mated;

That is to say that this unit belongs to the embodiment of the invention to the enhancement function under the VoLGA framework of the prior art, under the VoLGA framework, call control signalling is transparent transmission, need not to handle and conversion; And the embodiment of the invention is improved this framework.And utilize flexible conversion and the coupling of its realization to call control signalling, to adapt to the message sequence requirement of the different signalings of CN side; Simultaneously, the embodiment of the invention has also strengthened the expanded function to the Sv interface, can handle other mobility functions that removes the switching by this interface, such as the positional information of obtaining sip terminal etc., but is not limited to this.

This service logic decision-making and network domains menu unit 72, the type of service that is used for determining conversion and mates the described information order in back, and according to the default network domains of described type of service selection; And after described information order being mapped as the command messages of selected network domains, send the information order after the described mapping;

That is to say that this unit also is an enhancement unit of the present invention, mainly realize different CN network selection, and the signaling logic of the decision business as a result of foundation selection; Carrying out two-way signaling mapping afterwards, mainly is to realize the function mapping of terminal (such as mobile phone) side signaling to different CN network signals;

Preferably, this calls out control and mobile processing unit 71, specifically can be used to receive the information order that the initial session protocol sip terminal sends by the IP general access network.

Preferably, the described command messages that described calling control and mobile processing unit 71 receive specifically can comprise, but be not limited to this: receive SIP call control signalling or the register requirement that sip terminal sends by the IP general access network by Z1 (Gm) interface, and/or receive the non-switching class mobile management message that MME sends by Z2 (Sv) interface.

Preferably, can further include: switch logic processing unit 73 (Handover logicprocessing) is used for receiving the switching message that MME sends by Z2 (Sv) interface, and will switches message and send to call out and control and mobile processing unit 71.Specifically as shown in Figure 8, be another structural representation of the embodiment of the invention.

Preferably, described service logic decision-making and network domains menu unit, can also be used to receive the command response message that network side sends, described command response message conversion is the command response message that can discern of sip terminal after, send to this sip terminal by the IP general access network.

Preferably, described service logic decision-making and network domains menu unit, can also be used to receive network side and send the positional information that to obtain sip terminal, and the positional information that described needs obtain is carried out logic determines, and the result that will judge sends to described calling control and mobile processing unit; And receive the positional information that described calling control and mobile processing unit send the described sip terminal that gets access to, and after described positional information is mapped as the positional information that network side can discern, and the positional information of transmission after shining upon;

This calls out control and mobile processing unit, can also be used for receive described judgement as a result the time, and from described mobile management entity MME, obtain the positional information of described sip terminal, and the positional information of the sip terminal got of feedback by the Sv interface.

Preferably, this service logic decision-making and network domains menu unit, specifically A interface by circuit commutative field or wireless access network applying portion RANAP interface send the information order after the described mapping.

In this embodiment, described IP general access network can comprise: LTE/SAE network, HSDPA network, EVDO, WLAN or Wimax, but be not limited to this, also can be other access network based on the IP connection.

Accordingly, the embodiment of the invention also provides the enhancement mode of a kind of VoLGA to realize system, when satisfying the main aim of 3GPP VoLGA series of canonical, prior art has been realized partly strengthening, on the basis of realizing the CS speech business, the control ability of multimedia application is provided, and selects function, be implemented to evolution of IMS network and commercial flatness of disposing by the CN territory of this enhancing.In this system, the IP general access network of its carrying is example with LTE/SAE, but is not limited to this, and in order to narrate conveniently, the GANC that possesses enhancement function that the embodiment of the invention will have now in the VoLGA system is called VoPS-GW.Its structural representation as shown in Figure 9, this system specifically comprises: sip terminal 91, LTE/SAE92, VoPS-GW93, MSC94 and IP territory professional ability entity 95, wherein, this LTE/SAE92 comprises: LTE921, MME922 and SAE-GW923.

Wherein, in this system, sip terminal 91 is used to provide the SIP based on the LTE access technology to use personal terminal; LTE921 is the UTRA and the UTRAN of evolution, and its structure has been a known technology to those skilled in the art, does not repeat them here; MME is the control core of SAE, and the processing of control signalings such as the user inserts, service bearer control, paging, switching controls is provided; Senior Long Term Evolution gateway (SAE-GW) is the anchor point of Data-carrying, and IP bearing function and service quality (QoS) control etc. is provided; VoPS-GW, communication network IAD based on PS territory IP carrying provides voice call control and transfer capability, and it is adaptive to be provided to the interface and the signaling of CN various kinds of equipment, such as, receive MME by the Z1 interface and transmit SIP call control signalling or the register requirement that sip terminal sends; Perhaps receive the non-switching class mobile management message that MME sends by the Z2 interface; Perhaps, from MME, obtain the positional information of sip terminal by the Sv interface; Perhaps the SGi interface carries out the transmission of data etc.Function that it is concrete and effect see for details above-mentioned, do not repeat them here; MSC is used to provide CS speech business and intelligent value-added service; IP territory professional ability entity (IP Service): be used to provide the Internet business, and IMS field multimedia business.

In this system, the embodiment of the invention adopts the application layer protocol of SIP control protocol as terminal, guarantees that terminal is easy to acquired and higher commercial maturity, provides the basis to the evolution of IMS network simultaneously; On existing GANC, introduce the CN territory and selected function (being VoPS-GW), guarantee that the CN side business provides the variation of network not exert an influence to inserting side, thereby guarantee terminal use's investment, provide flexible way for this access controller smooth evolution for the network element of IMS simultaneously.

By above-mentioned disclosed embodiment as can be known, the embodiment of the invention has been introduced the enhancement function of CN territory choosing, solve original scheme to the wasting of resources of LTE/SAE broadband wireless and the problem that is difficult to improve investment return, when ensureing terminal use CS voice service, the application of multimedia and data service can be provided, greatly enrich terminal use's business experience, increased the telephone traffic of carrier network; Before IMS network large-scale application, operator can set speech business and select the CS core net to provide, after IMS network large-scale application begins, operator can cut the IMS network with the user of this type of appointment arbitrarily according to strategies such as number section or domain names, transfer to provide the speech business of fusion by the IMS network, this technology can ensure that the investment of operator on VoPS-GW obtains maximum protection, and reduces the influence that upgrading network equipment brings;

Further, because the embodiment of the invention adopts the SIP control protocol as access side call control protocol, and substitute the GAN end side agreement of the original definition of 3GPP, it is immature to have solved the terminal that faced originally, and industrial chain supports short situation; Angle from commerce is disposed has reduced market promotion risk, has accelerated marketing speed; From technology maturity, the main flow mobile phone technique that SIP has accepted extensively for industry, the technology form is quite ripe, meets the development trend of industry, can protect the investment interests of terminal use on mobile phone;

Further, the embodiment of the invention is also introduced LTE/SAE IP CAN access side calling control technology provides technology independent mutually with the network side business, Technical Architecture disconnected from each other, solve the evolution routing problem of original scheme, the flexibility that further provides access side and network side technology effectively to make up, the convenient operation investment tactics of implementing operator is reused the existing CS core net of operator, and ensure the investment of operator on VoPS-GW can smooth evolution to the IMS objective network.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1, realize the method that the territory is selected in a kind of communication system, it is characterized in that, comprising:

Described information order is mapped as the information order of selected network domains, sends the information order after the described mapping.

2, method according to claim 1 is characterized in that, the information order that described reception IP general access network sends is:

Receive the information order that the initial session protocol sip terminal sends by the IP general access network.

3, method according to claim 2 is characterized in that, described information order comprises:

Receive SIP call control signalling or the register requirement that sip terminal sends by the IP general access network by Gm, and/or receive switching message or the mobile management message that mobile management entity MME sends by the Sv interface.

4, according to each described method of claim 1 to 3, it is characterized in that the information order after the described mapping of described transmission specifically comprises: A interface by circuit commutative field or wireless access network applying portion RANAP interface send the information order after the described mapping.

5, according to each described method of claim 1 to 3, it is characterized in that described method also comprises:

Receive the information order response message that network side sends;

After described information order response message is converted to the command response message that sip terminal can discern, send to this sip terminal by the IP general access network.

6, according to each described method of claim 1 to 3, it is characterized in that described IP general access network comprises: data-optimized network EVDO, the WLAN (wireless local area network) WLAN of Long Term Evolution LTE/SAE network, high-speed downlink packet access HSDPA network, evolution or World Interoperability for Microwave Access, WiMax Wimax.

7, according to each described method of claim 1 to 3, it is characterized in that described network domains comprises: circuit domain, core network domain and/or IMS domain.

8, a kind of motion management method is characterized in that, comprising:

9, a kind of control gateway based on packet switching PS territory speech business is characterized in that, comprising:

10, control gateway according to claim 9 is characterized in that, described calling control and mobile processing unit specifically are used to receive the information order that sip terminal sends by the IP general access network.

11, control gateway according to claim 10 is characterized in that, the described command messages that described calling control and mobile processing unit receive specifically comprises:

Receive SIP call control signalling or the register requirement that sip terminal sends by the IP general access network by Gm, and/or receive the non-switching class mobile management message that MME sends by the Sv interface.

12, control gateway according to claim 9 is characterized in that, also comprises:

The switch logic processing unit is used for receiving the switching message that MME sends by the Sv interface, and will switch message and send to call out and control and mobile processing unit.

13, control gateway according to claim 9, it is characterized in that, described service logic decision-making and network domains menu unit, also be used to receive the command response message that network side sends, after described command response message conversion is the command response message that can discern of sip terminal, send to this sip terminal by the IP general access network.

14, control gateway according to claim 9 is characterized in that,

Described service logic decision-making and network domains menu unit, also be used to receive network side and send the positional information that to obtain sip terminal, and the positional information that described needs obtain carried out logic determines, and the result that will judge sends to described calling control and mobile processing unit; And receive the positional information that described calling control and mobile processing unit send the described sip terminal that gets access to, and after described positional information is mapped as the positional information that network side can discern, and the positional information of transmission after shining upon;

Described calling control and mobile processing unit, also be used for receive described judgement as a result the time, and from described mobile management entity MME, obtain the positional information of described sip terminal, and the positional information of the sip terminal got of feedback by the Sv interface.

15, according to each described control gateway of claim 9 to 14, it is characterized in that, described service logic decision-making and network domains menu unit, specifically A interface by circuit commutative field or wireless access network applying portion RANAP interface send the information order after the described mapping.