CN104918292A - Service control method and system - Google Patents

Abstract

The embodiment of the invention discloses a service control method. The service control method comprises the following steps that: when services operating in a first network satisfy a first preset condition, the operating services are switched to a second network; and the operating services are switched to a third network from a second network, first parameters of the services when the services switched to the second network from the first network are superior to first parameters of the services when the services are switched to the third network from the first network, and second parameters of the services when the services operate in the third network are superior to second parameters of the services when the services operate in the second network. The embodiment of the invention also correspondingly discloses a service control system. The service control system includes a judging module, a first switching module and a second switching module.

Description

A kind of service control method and system

Technical field

The present invention relates to mobile communication business control field, particularly relate to a kind of service control method and system.

Background technology

Along with the maturation of LTE network technology and the quickening that expands size expansion work advance, how for LTE user provides high-quality speech business, guarantees that customer service perception becomes one of emphasis of LTE network service deployment.

At present, our 2/3G network has reached comprehensive covering through operation for many years, and the speech business of existing 2/3G mobile subscriber is carried on circuit domain (CS territory) equipment, possesses excellent voice quality.Existing LTE network only covers the speech in some cities and the hot spot region of data service, and LTE network is packet switching network, and the session service that the speech business of LTE user can only be carried by IP realizes, and need provide the control that continues by IMS network equipment.LTE user often can cross over LTE network and 2/3G network in a communication process; because LTE network is different with handshaking procedure with the bearing mode of 2/3G network to speech business; when not taking any voice continuity guarantee technology; there will be the disruption of voice; destroy Session continuity, thus affect the perception of LTE user to speech business.

Summary of the invention

In view of this, for solving the technical problem of existing existence, the embodiment of the present invention provides a kind of service control method, system and system, can guaranteeing business continuity, raising Consumer's Experience.

A kind of service control method, comprising:

The business in first network of operating in meet first pre-conditioned time, the described business run is switched to second network;

The described business run is switched to the 3rd network from second network, wherein, the first parameter when described business is switched to second network from first network is better than the first parameter when being switched to the 3rd network from first network, and second parameter of described service operation when the 3rd network is better than the second parameter when operating in second network.

Preferably, described first network is LTE network, described second network is 2/3G network PS field, described 3rd network is 2/3G network C S territory, described business is speech business, and described first pre-conditionedly moves out LTE network coverage for user equipment (UE), and described first parameter at least comprises switch speed, described second parameter at least comprises resource quantity

The method specifically comprises:

When LTE subscriber equipment moves out LTE coverage in speech business process, institute's voice traffic is switched to 2/3G network PS field;

Institute's voice traffic is transferred to CS territory from 2/3G network PS field.

Preferably, the method also comprises: after institute's voice traffic is switched to 2/3G network PS field, supported data business and speech business concurrent running.

Preferably, it is characterized in that, described speech business be switched to 2/3G network PS field, comprising:

Source base station sends handover request message to source Mobility Management Entity MME;

Source MME sends to target SGSN and forwards redirect request (Forward Relocation Request) message, comprises source PDP Context information;

Target SGSN sends redirect request (Relocation Request) message to Target RNC, and request RNC sets up wireless network RAB resource;

Target RNC distributes RAB resource, returns redirect response (Relocation Request Ack) message to SGSN;

Target SGSN returns to source MME and forwards redirect response (Forward Relocation Response) message, comprises wireless side RAB information and self IP information;

Source MME sends switching command (Handover Command) message to source base station, notifies that its switching is ready to complete;

Source base station sends to subscriber equipment and cuts out instruction (HO from E-UTRAN Command) message from LTE wireless network, and indicating user switches;

When source base station is redirected ready, by source MME, target SGSN to Target RNC transfer source RNC context forward (Forward SRNS Context) message, carries out redirection process execution, complete SRNS context transfer;

Subscriber equipment completes switching according to the customer parameter received, and proceeds the transmission of IP information under Target RNC;

Target RNC sends and has been redirected (Relocation Complete) message to target SGSN. and notice SGSN user has switched, and target SGSN starts to prepare to receive data from RNC, and sends data to target SAE-GW;

Target SGSN sends forward to source MME and has been redirected (Forward Relocation Complete) message, and notification source MME switches successful;

Source MME is by being redirected confirmation (Relocation Complete Ack) message response target SGSN;

Target SGSN sends to target SAE-GW and upgrades PDP Context request (Update PDPContext Request) message, the current all PDP Contexts of notice SAE-GW leading subscriber;

Target SAE-GW upgrades PDP Context field, returns and upgrades PDP Context response (Update PDP Context Response) message;

By Routing Area Update process (Routing Area Update procedure) message informing target SGSN, it is registered to new Route Area to subscriber equipment.

Preferably, described speech business is transferred to CS territory from 2/3G network PS field, comprising:

Subscriber equipment initiates Setup message to circuit domain MSC;

MSC routes the call to IMS core network through MGCF;

MGCF initiates invitation message to IMS core net, the SDP information of invitation message is set to the terminal point information of the upper distribution of MGW that MGCF controls, and the most at last this Message routing to VCC-AS;

VCC-AS is according to the number information in service switchover code message (HoServiceNo), and the current talking state of calling and called judges that this is a calling needing to transfer to circuit domain, find original Call-Control1 block message according to dialing number information simultaneously, thus find the peer user details of carrying out VOIP phone with calling subscriber, and by inviting (Reinvite) message to send to IMS core net again;

IMS core net forwards to peer user and invites (Reinvite) message again, and wherein local terminal SDP carries the terminal point information of the MGW into MGCF control;

After peer user receives invitation message again, alter course media bearer MGW, and return 200ok message;

200ok message is back to MGCF through IMS core net, and the media resource of MGW and peer user has been set up;

MGCF is replied by ANM notice MSC peer user;

MSC is invited to send connection (connect) message to initiation calling subscriber again;

Calling terminal returns to connect and confirms response, and two lateral terminals are completed by the voice connection of circuit domain, and original VOIP phone is transferred as traditional voice.

A kind of service control system, comprising: judge module, the first handover module and the second handover module; Wherein,

Whether described judge module, meet first pre-conditioned for the business judging to operate in first network;

Described first handover module, for the business determining when judge module to operate in first network meet first pre-conditioned time, the described business run is switched to second network;

Described second handover module, after being switched to second network in the described business run, the described business run is switched to the 3rd network from second network, wherein, the first parameter when described business is switched to second network from first network is better than the first parameter when being switched to the 3rd network from first network, and second parameter of described service operation when the 3rd network is better than the second parameter when operating in second network.

Preferably, described judge module, specifically for judging whether UE moves out LTE network coverage;

Described first handover module, specifically for when LTE subscriber equipment moves out LTE coverage in speech business process, is switched to 2/3G network PS field by institute's voice traffic;

Described second handover module, specifically for transferring to CS territory by institute's voice traffic from 2/3G network PS field.

Preferably, this system also comprises con current control module,

Described con current control module, after being switched to 2/3G network PS field at institute's voice traffic, controls and supported data business and speech business concurrent running.

Preferably, speech business is switched to 2/3G network PS field by described first handover module, specifically comprises:

Source base station sends handover request message to source Mobility Management Entity MME;

Source MME sends to target SGSN and forwards redirect request (Forward Relocation Request) message, comprises source PDP Context information;

Target SGSN sends redirect request (Relocation Request) message to Target RNC, and request RNC sets up wireless network RAB resource;

Target RNC distributes RAB resource, returns redirect response (Relocation Request Ack) message to SGSN;

Target SGSN returns to source MME and forwards redirect response (Forward Relocation Response) message, comprises wireless side RAB information and self IP information;

Source MME sends switching command (Handover Command) message to source base station, notifies that its switching is ready to complete;

Source base station sends to subscriber equipment and cuts out instruction (HO from E-UTRAN Command) message from LTE wireless network, and indicating user switches;

When source base station is redirected ready, by source MME, target SGSN to Target RNC transfer source RNC context forward (Forward SRNS Context) message, carries out redirection process execution, complete SRNS context transfer;

Subscriber equipment completes switching according to the customer parameter received, and proceeds the transmission of IP information under Target RNC;

Target RNC sends and has been redirected (Relocation Complete) message to target SGSN. and notice SGSN user has switched, and target SGSN starts to prepare to receive data from RNC, and sends data to target SAE-GW;

Target SGSN sends forward to source MME and has been redirected (Forward Relocation Complete) message, and notification source MME switches successful;

Source MME is by being redirected confirmation (Relocation Complete Ack) message response target SGSN;

Target SGSN sends to target SAE-GW and upgrades PDP Context request (Update PDP Context Request) message, the current all PDP Contexts of notice SAE-GW leading subscriber;

Target SAE-GW upgrades PDP Context field, returns and upgrades PDP Context response (Update PDP Context Response) message;

By Routing Area Update process (Routing Area Update procedure) message informing target SGSN, it is registered to new Route Area to subscriber equipment.

Preferably, speech business is transferred to CS territory from 2/3G network PS field by described second handover module, specifically comprises:

Subscriber equipment initiates Setup message to circuit domain MSC;

MSC routes the call to IMS core network through MGCF;

MGCF initiates invitation message to IMS core net, the SDP information of invitation message is set to the terminal point information of the upper distribution of MGW that MGCF controls, and the most at last this Message routing to VCC-AS;

VCC-AS is according to the number information in service switchover code message (HoServiceNo), and the current talking state of calling and called judges that this is a calling needing to transfer to circuit domain, find original Call-Control1 block message according to dialing number information simultaneously, thus find the peer user details of carrying out VOIP phone with calling subscriber, and by inviting (Reinvite) message to send to IMS core net again;

IMS core net forwards to peer user and invites (Reinvite) message again, and wherein local terminal SDP carries the terminal point information of the MGW into MGCF control;

After peer user receives invitation message again, alter course media bearer MGW, and return 200ok message;

200ok message is back to MGCF through IMS core net, and the media resource of MGW and peer user has been set up;

MGCF is replied by ANM notice MSC peer user;

MSC is invited to send connection (connect) message to initiation calling subscriber again;

Calling terminal returns to connect and confirms response, and two lateral terminals are completed by the voice connection of circuit domain, and original VOIP phone is transferred as traditional voice.

Service control method described in the embodiment of the present invention and system, the business in first network of operating in meet first pre-conditioned time, the described business run is switched to second network; The described business run is switched to the 3rd network from second network, wherein, the first parameter when described business is switched to second network from first network is better than the first parameter when being switched to the 3rd network from first network, and second parameter of described service operation when the 3rd network is better than the second parameter when operating in second network.By the scheme described in the embodiment of the present invention, can guaranteeing business continuity, raising Consumer's Experience.

Accompanying drawing explanation

Fig. 1 is the embodiment of the present invention one service control method schematic flow sheet;

Fig. 2 is the service control method schematic flow sheet that the embodiment of the present invention one is concrete;

Fig. 3 is the embodiment of the present invention one service control system structural representation;

Fig. 4 is another service control system structural representation of the embodiment of the present invention;

Fig. 5 is the overall realization flow schematic diagram of the PHO-ICT method for switching languages described in the embodiment of the present invention 1;

Fig. 6 is the schematic network structure described in the embodiment of the present invention 2;

Fig. 7 is the signaling process schematic diagram realizing PS territory procedure of switching voice described in the embodiment of the present invention 3;

Fig. 8 is the signaling process schematic diagram of CS territory voice transfer process described in the embodiment of the present invention 4.

Embodiment

In various embodiments of the present invention: the business in first network of operating in meet first pre-conditioned time, the described business run is switched to second network; The described business run is switched to the 3rd network from second network, wherein, the first parameter when described business is switched to second network from first network is better than the first parameter when being switched to the 3rd network from first network, and second parameter of described service operation when the 3rd network is better than the second parameter when operating in second network.

The embodiment of the present invention proposes a kind of service control method, and as shown in Figure 1, the method comprises:

Step 101: the business in first network of operating in meet first pre-conditioned time, the described business run is switched to second network;

Step 102: the described business run is switched to the 3rd network from second network, wherein, the first parameter when described business is switched to second network from first network is better than the first parameter when being switched to the 3rd network from first network, and second parameter of described service operation when the 3rd network is better than the second parameter when operating in second network.

Optionally, described first network is LTE network, described second network is 2/3G network PS field, described 3rd network is 2/3G network C S territory, described business is speech business, and described first pre-conditionedly moves out LTE network coverage for user equipment (UE), and described first parameter at least comprises switch speed, described second parameter at least comprises resource quantity

As shown in Figure 2, the method embodiment specifically comprises:

Step 201: when LTE subscriber equipment moves out LTE coverage in speech business process, institute's voice traffic is switched to 2/3G network PS field;

Step 202: institute's voice traffic is transferred to CS territory from 2/3G network PS field.

Optionally, the method also comprises: after institute's voice traffic is switched to 2/3G network PS field, supported data business and speech business concurrent running.

Optionally, the embodiment of the present invention also correspondingly proposes a kind of service control system, and as shown in Figure 3, this system comprises: judge module 31, first handover module 32 and the second handover module 33; Wherein,

Whether judge module 31, meet first pre-conditioned for the business judging to operate in first network;

First handover module 32, for the business determining when judge module 31 to operate in first network meet first pre-conditioned time, the described business run is switched to second network;

Second handover module 33, after being switched to second network in the described business run, the described business run is switched to the 3rd network from second network, wherein, the first parameter when described business is switched to second network from first network is better than the first parameter when being switched to the 3rd network from first network, and second parameter of described service operation when the 3rd network is better than the second parameter when operating in second network.

Optionally, described judge module, specifically for judging whether UE moves out LTE network coverage;

Described first handover module, specifically for when LTE subscriber equipment moves out LTE coverage in speech business process, is switched to 2/3G network PS field by institute's voice traffic;

Described second handover module, specifically for transferring to CS territory by institute's voice traffic from 2/3G network PS field.

Optionally, as shown in Figure 4, this system also comprises con current control module 34,

Con current control module 34, after being switched to 2/3G network PS field at institute's voice traffic, controls and supported data business and speech business concurrent running.

Below by specific embodiment, technical scheme of the present invention is described in further detail.

Embodiment 1

The present embodiment describes the call transfer that PHO-ICT(PS territory switches associating IMS control, PS Handover-IMS Controlled Call Transfer) voice handover scheme.

The present embodiment is under LTE network covering also incomplete situation, when LTE user moves out LTE coverage in speech business process, first by PHO (PS Handover, PS territory switches), ip voice is switched to fast PS territory (existing network GPRS network), to guarantee the continuity of speech business, and supported data and speech business is concurrent, meanwhile, consider that 2/3G radio channel resource Capacity Ratio is more nervous, and in order to protect the investment of CS territory (circuit domain), immediately by call transfer function that IMS controls, the call transfer service request of CS territory is initiated to IMS call transfer module by terminal, under the control of IMS call transfer function, the ip voice in PS territory is shifted as CS territory traditional voice automatically, user is made to complete communication process in 2/3G lattice network territory, thus ensure better speech service quality and good client perception, data service is simultaneously unaffected.

Fig. 5 is the overall realization flow schematic diagram of the PHO-ICT method for switching languages described in the embodiment of the present invention 1, and as shown in Figure 5, the method specifically comprises:

Step 501: terminal, in LTE network, realizes the VOIP speech business based on IP carrying under IMS control;

VOIP voice, first by PHO, are switched to PS territory, to guarantee that the continuity of speech business is protected by step 502: when LTE user moves out LTE coverage in speech business process fast.

Step 503: after PHO procedure of switching voice completes, immediately by ICT (call transfer that IMS controls) function, the call transfer service request of CS territory is initiated to IMS call transfer module by terminal, under the control of IMS call transfer functional module, the VOIP voice in PS territory are shifted as CS territory traditional voice automatically, to guarantee that voice quality is protected, user is made to have good service-aware.

Can find out according to foregoing description, PHO-ICT voice handover scheme described in the present embodiment, the voice achieving the PS territory network from LTE to 2/3G take over seamlessly the IMS call transfer forwarding function with automation, supported data and speech business concurrent, solves the continuity problem of LTE user speech business in different systems networking well.The technical problems such as the call delay in correlation technique implementation procedure is long, treatment mechanism is complicated, data service is hung up, the easy appearance of switching failed phenomenon, terminal and chip slower development can be avoided.Generally speaking, the beneficial effect of the present embodiment is: handover delay is short, supported data and speech business concurrent, accelerates the continuity realizing data and speech business, guarantees that the perception of LTE user to data and speech business is unaffected.

Embodiment 2

The present embodiment describes a network configuration, the PHO-ICT voice handover scheme described in embodiment 1 can be realized, it should be noted that, for accelerating to realize this programme operation flow, make there is good interoperability between each hardware and software equipment, in this programme model, individual device adopts the open interface of standard; Meanwhile, independently can carry out function optimization and upgrading for ease of the flexible networking of equipment and individual device, this programme model adopts modularized design.

Fig. 6 is the schematic network structure described in the embodiment of the present invention 2, and as shown in Figure 6, this network comprises:

1, application server for continuity of voice call (Voice Call Continuity-Application Server, VCC-AS): shift between the territory of responsible audio call and set up new voice channel to ensure voice continuity fast.

2, forwarding function (Domain Transfer Function) module between network domains: be positioned at VCC AS application apparatus, in IMS call transfer process, audio call is transferred to CS territory tradition switching equipment from IMS domain VOIP voice status, is responsible for re-establishing calling or release Call.

3, circuit domain adaption function (CS Adaption function) module: be positioned at VCC AS application apparatus, in IMS call transfer process, realize after user is switched to traditional 2/3G network from LTE network, completing circuit territory calling adaptation processing function and number measuring ability.

4, P-CSCF(Proxy Call Session Control Function, proxy Call Session Control Function): the registration and the session request that are mainly used in receiving terminal user, agency forwards and controls the information relevant to carrying.

5, I-CSCF(query call conversation control function, Interrogating Call Session Control Function): carry out the inquiry of user contracting data and the distribution of business.

6, S-CSCF(service call conversation control function, Serving Call Session Control Function): the service request performing user, carry out the process of service logic, conversation switching and business and be toggled to VCC AS module.

7, HSS(home subscriber server, Home Subscriber Server): mainly carry out user signing contract information and Service Data Management.

8, PCRF(strategy and charging rule functions unit, Policy and Charging Rules Function): carry out QOS strategy, business rule and charging way and control.

9, MGCF(MGCF, Media Gateway Control Function): the conversion being responsible for application protocol, realizes IMS domain and the intercommunication of CS territory, CSCF by MGCF indirectly control 2/3G network carry out continuing of information interaction and call.

10, all devices in LTE core network: be responsible for data when LTE user resides in LTE network and speech business continues.

11,2/3G tradition core net all devices: when responsible LTE user moves out LTE network scope, complete the quick switching of ip voice by PS territory and complete the transfer of ip voice to circuit domain traditional voice service under the control of VCC-AS.

Embodiment 3

Mention in embodiment 1, when LTE user moves out LTE coverage in speech business process, first by PHO, VOIP voice are switched to PS territory (existing network GPRS network) fast, to guarantee that the continuity of speech business is protected.The present embodiment describes the signaling process that realizes described PS territory procedure of switching voice, and as shown in Figure 7, this signaling process comprises:

When step 701.LTE user arrives LTE network and 2/3G network boundary region in speech business process, the Mobility Management Entity (Mobility Management Entity, MME) that LTE network wireless side eNodeB equipment (source base station) was registered originally to user sends handover request message.

Step 702. source MME judges that this handover request is different intersystem handover, to objective network SGSN(target SGSN) send forwarding redirect request (Forward Relocation Request) message, comprise the PDP Context information that source is all.

Step 703. target SGSN sends redirect request (Relocation Request) message to Target RNC, and request RNC sets up wireless network RAB resource.

Step 704. Target RNC distributes RAB resource, returns redirect response (Relocation Request Ack) message to SGSN.

Step 705. target SGSN returns to source MME and forwards redirect response (Forward Relocation Response) message, comprises wireless side RAB information and self IP information.

Step 706. source MME sends switching command (Handover Command) message to source base station, notifies that its switching is ready to complete.

Step 707. source base station sends to user and cuts out instruction (HO from E-UTRAN Command) message from LTE wireless network, and indicating user switches, and this message comprises the wireless resource information that Target RNC is set up.

Step 708. source base station, when being redirected ready, by MME, SGSN to Target RNC transfer source RNC context forward (Forward SRNS Context) message, carrying out redirection process execution, completes SRNS context transfer.

Step 709. user completes switching according to the customer parameter received, and proceeds the transmission of IP information under Target RNC, guarantees the continuity of VOIP voice and resuming of data service.

Step 710. Target RNC sends and has been redirected (Relocation Complete) message to target SGSN. and notice SGSN user has switched, and SGSN starts to prepare to receive data from RNC, and sends data to SAE-GW.

Step 711. target SGSN sends forward to source MME and has been redirected (Forward Relocation Complete) message, and notice MME switches successful.

Step 712. source MME is by being redirected confirmation (Relocation Complete Ack) message response SGSN.

Step 713. target SGSN sends to SAE-GW and upgrades PDP Context request (Update PDP Context Request) message, the current all PDP Contexts of notice SAE-GW leading subscriber.

Step 714.SAE-GW have updated PDP Context field, return and upgrade PDP Context response (Update PDP Context Response) message, user current IP carrying set up between UE, RNC, SGSN, SAE-GW, VOIP voice are maintained.

By Routing Area Update process (Routing Area Update procedure) message informing target SGSN, he is registered to new Route Area to step 715. user.

Embodiment 4

Mention in embodiment 1, user is after PHO procedure of switching voice completes, for ensureing that the speech perception of user is not by the impact of GPRS network wireless bandwidth resource anxiety, immediately by ICT (call transfer that IMS controls) function, the call transfer service request of CS territory is initiated to IMS call transfer functional module by terminal, under the control of IMS call transfer functional module, the VOIP voice in PS territory are shifted as CS territory traditional voice, to guarantee that user has good speech perception automatically.The present embodiment describes the signaling process that realizes described CS territory voice transfer process, and as shown in Figure 8, this signaling process comprises:

Step 801: terminal use is while being switched to GPRS network, circuit domain MSC is registered in by GSM function, for ensureing that the speech perception of user is not by the impact of GPRS network wireless bandwidth resource anxiety, Setup message is initiated immediately to circuit domain MSC, opposite-terminal number HoserviceNo carries, and the calling of terminal is automatically initiated function and configured realize fast by carrying out the superposition of IMS call transfer function and number on the IMS terminal basis of software of existing mobile phone.

Step 802:MSC, according to the HoServiceNo in SETUP message, routes the call to IMS core network through MGCF.

After step 803 and 804:MGCF receive the call setup message of MSC, initiate Invite message to IMS core net, the SDP information of Invite message be set to the terminal point information of the upper distribution of MGW that MGCF controls, and the most at last this Message routing to VCC-AS.

Step 805:VCC-AS is according to the number information in service switchover code message (HoServiceNo), and the current talking state of calling and called judges that this is a calling needing to transfer to circuit domain, find original Call-Control1 block message according to dialing number information simultaneously, thus find the peer user details of carrying out VOIP phone with calling subscriber, and by inviting (Reinvite) message to send to IMS core net again.

Step 806:IMS core net forwards Reinvite message to peer user, and wherein local terminal SDP carries the terminal point information of the MGW into MGCF control.

Step 807: after peer user receives Reinvite message, alter course media bearer MGW, and return 200ok message.

Step 808:200ok message is back to MGCF through IMS core net, and the media resource of MGW and peer user has been set up.

Step 809:MGCF is replied by ANM notice MSC peer user.

Step 810:MSC sends connection (connect) message to initiation calling subscriber.

Step 811: calling terminal returns connect ACK and replys, two lateral terminals are completed by the voice connection of circuit domain, original VOIP phone is transferred as traditional voice, and user awareness is well ensured, the voice resource of circuit domain high-quality is well utilized simultaneously.

Compared to correlation technique, adopt the method described in the embodiment of the present invention, following technique effect can be reached:

1, compared to circuit domain dropping (Circuit Switched Fallback, CSFB) mode, can avoid the calling establishment time delay in voice fallback process to increase problem, called subscriber and fall failure handling mechanism complexity and user have certain hour unreachable problem when returning LTE after rise.

2, continuous voice call (Single Radio Voice Call Continuity is provided compared to for injection frequency (singly treating) terminal, SRVCC) mode, the speech business disruption of about 300-500MS when can avoid switching, guarantee to control switching time at about 100MS, thus lifting client perception, meet commercial deployment requirements completely; In addition, for the present situation of SRVCC terminal and chip immature development, and the problem that interference is large, power consumption is large, volume is large, cost is high that Multi-mode dual-standby terminal exists, the embodiment of the present invention can realize the rapid deployment of LTE speech business in advance by software terminal; In addition, can solve in SRVCC handoff procedure, or in the process of CSFB voice fallback, hang-up or the speed decline problem of data service can be caused, for the concurrent and continuity of data and speech business provides realization rate.

3, the large-scale redevelopment of existing 2/3G core net is avoided, investment reduction cost, and, can accelerate to realize the data of LTE network and the continuity of speech business, in advance for LTE user provides reliable high-quality speech business, and guarantee better quality of service.

Above-mentioned each module can by central processing unit (the Central Processing Unit in electronic equipment, CPU), digital signal processor (Digital Signal Processor, DSP) or programmable logic array (Field-Programmable Gate Array, FPGA) realize.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of hardware embodiment, software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce system for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command system, and this command system realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims (10)

1. a service control method, is characterized in that, the method comprises:

The business in first network of operating in meet first pre-conditioned time, the described business run is switched to second network;

The described business run is switched to the 3rd network from second network, wherein, the first parameter when described business is switched to second network from first network is better than the first parameter when being switched to the 3rd network from first network, and second parameter of described service operation when the 3rd network is better than the second parameter when operating in second network.

2. method according to claim 1, it is characterized in that, described first network is LTE network, described second network is 2/3G network PS field, and described 3rd network is 2/3G network C S territory, and described business is speech business, described first pre-conditionedly moves out LTE network coverage for user equipment (UE), described first parameter at least comprises switch speed, and described second parameter at least comprises resource quantity

The method specifically comprises:

When LTE subscriber equipment moves out LTE coverage in speech business process, institute's voice traffic is switched to 2/3G network PS field;

Institute's voice traffic is transferred to CS territory from 2/3G network PS field.

3. method according to claim 2, is characterized in that, the method also comprises: after institute's voice traffic is switched to 2/3G network PS field, supported data business and speech business concurrent running.

4. according to the method in claim 2 or 3, it is characterized in that, described speech business be switched to 2/3G network PS field, comprising:

Source base station sends handover request message to source Mobility Management Entity MME;

Source MME sends to target SGSN and forwards redirect request (Forward Relocation Request) message, comprises source PDP Context information;

Target SGSN sends redirect request (Relocation Request) message to Target RNC, and request RNC sets up wireless network RAB resource;

Target RNC distributes RAB resource, returns redirect response (Relocation Request Ack) message to SGSN;

Target SGSN returns to source MME and forwards redirect response (Forward Relocation Response) message, comprises wireless side RAB information and self IP information;

Source MME sends switching command (Handover Command) message to source base station, notifies that its switching is ready to complete;

Source base station sends to subscriber equipment and cuts out instruction (HO from E-UTRAN Command) message from LTE wireless network, and indicating user switches;

When source base station is redirected ready, by source MME, target SGSN to Target RNC transfer source RNC context forward (Forward SRNS Context) message, carries out redirection process execution, complete SRNS context transfer;

Subscriber equipment completes switching according to the customer parameter received, and proceeds the transmission of IP information under Target RNC;

Target RNC sends and has been redirected (Relocation Complete) message to target SGSN. and notice SGSN user has switched, and target SGSN starts to prepare to receive data from RNC, and sends data to target SAE-GW;

Target SGSN sends forward to source MME and has been redirected (Forward Relocation Complete) message, and notification source MME switches successful;

Source MME is by being redirected confirmation (Relocation Complete Ack) message response target SGSN;

Target SGSN sends to target SAE-GW and upgrades PDP Context request (Update PDP Context Request) message, the current all PDP Contexts of notice SAE-GW leading subscriber;

Target SAE-GW upgrades PDP Context field, returns and upgrades PDP Context response (Update PDP Context Response) message;

By Routing Area Update process (Routing Area Update procedure) message informing target SGSN, it is registered to new Route Area to subscriber equipment.

5. according to the method in claim 2 or 3, it is characterized in that, described speech business transferred to CS territory from 2/3G network PS field, comprising:

Subscriber equipment initiates Setup message to circuit domain MSC;

MSC routes the call to IMS core network through MGCF;

MGCF initiates invitation message to IMS core net, the SDP information of invitation message is set to the terminal point information of the upper distribution of MGW that MGCF controls, and the most at last this Message routing to VCC-AS;

VCC-AS is according to the number information in service switchover code message (HoServiceNo), and the current talking state of calling and called judges that this is a calling needing to transfer to circuit domain, find original Call-Control1 block message according to dialing number information simultaneously, thus find the peer user details of carrying out VOIP phone with calling subscriber, and by inviting (Reinvite) message to send to IMS core net again;

IMS core net forwards to peer user and invites (Reinvite) message again, and wherein local terminal SDP carries the terminal point information of the MGW into MGCF control;

After peer user receives invitation message again, alter course media bearer MGW, and return 200ok message;

200ok message is back to MGCF through IMS core net, and the media resource of MGW and peer user has been set up;

MGCF is replied by ANM notice MSC peer user;

MSC is invited to send connection (connect) message to initiation calling subscriber again;

Calling terminal returns to connect and confirms response, and two lateral terminals are completed by the voice connection of circuit domain, and original VOIP phone is transferred as traditional voice.

6. a service control system, is characterized in that, this system comprises: judge module, the first handover module and the second handover module; Wherein,

Whether described judge module, meet first pre-conditioned for the business judging to operate in first network;

Described first handover module, for the business determining when judge module to operate in first network meet first pre-conditioned time, the described business run is switched to second network;

Described second handover module, after being switched to second network in the described business run, the described business run is switched to the 3rd network from second network, wherein, the first parameter when described business is switched to second network from first network is better than the first parameter when being switched to the 3rd network from first network, and second parameter of described service operation when the 3rd network is better than the second parameter when operating in second network.

7. system according to claim 6, is characterized in that,

Described judge module, specifically for judging whether UE moves out LTE network coverage;

Described first handover module, specifically for when LTE subscriber equipment moves out LTE coverage in speech business process, is switched to 2/3G network PS field by institute's voice traffic;

Described second handover module, specifically for transferring to CS territory by institute's voice traffic from 2/3G network PS field.

8. system according to claim 7, is characterized in that, this system also comprises con current control module,

Described con current control module, after being switched to 2/3G network PS field at institute's voice traffic, controls and supported data business and speech business concurrent running.

9. the method according to claim 7 or 8, is characterized in that, speech business is switched to 2/3G network PS field by described first handover module, specifically comprises:

Source base station sends handover request message to source Mobility Management Entity MME;

Source MME sends to target SGSN and forwards redirect request (Forward Relocation Request) message, comprises source PDP Context information;

Target SGSN sends redirect request (Relocation Request) message to Target RNC, and request RNC sets up wireless network RAB resource;

Target RNC distributes RAB resource, returns redirect response (Relocation Request Ack) message to SGSN;

Target SGSN returns to source MME and forwards redirect response (Forward Relocation Response) message, comprises wireless side RAB information and self IP information;

Source MME sends switching command (Handover Command) message to source base station, notifies that its switching is ready to complete;

Source base station sends to subscriber equipment and cuts out instruction (HO from E-UTRAN Command) message from LTE wireless network, and indicating user switches;

When source base station is redirected ready, by source MME, target SGSN to Target RNC transfer source RNC context forward (Forward SRNS Context) message, carries out redirection process execution, complete SRNS context transfer;

Subscriber equipment completes switching according to the customer parameter received, and proceeds the transmission of IP information under Target RNC;

Target RNC sends and has been redirected (Relocation Complete) message to target SGSN. and notice SGSN user has switched, and target SGSN starts to prepare to receive data from RNC, and sends data to target SAE-GW;

Target SGSN sends forward to source MME and has been redirected (Forward Relocation Complete) message, and notification source MME switches successful;

Source MME is by being redirected confirmation (Relocation Complete Ack) message response target SGSN;

Target SGSN sends to target SAE-GW and upgrades PDP Context request (Update PDP Context Request) message, the current all PDP Contexts of notice SAE-GW leading subscriber;

Target SAE-GW upgrades PDP Context field, returns and upgrades PDP Context response (Update PDP Context Response) message;

By Routing Area Update process (Routing Area Update procedure) message informing target SGSN, it is registered to new Route Area to subscriber equipment.

10. the system according to claim 7 or 8, is characterized in that, speech business is transferred to CS territory from 2/3G network PS field by described second handover module, specifically comprises:

Subscriber equipment initiates Setup message to circuit domain MSC;

MSC routes the call to IMS core network through MGCF;

MGCF initiates invitation message to IMS core net, the SDP information of invitation message is set to the terminal point information of the upper distribution of MGW that MGCF controls, and the most at last this Message routing to VCC-AS;

VCC-AS is according to the number information in service switchover code message (HoServiceNo), and the current talking state of calling and called judges that this is a calling needing to transfer to circuit domain, find original Call-Control1 block message according to dialing number information simultaneously, thus find the peer user details of carrying out VOIP phone with calling subscriber, and by inviting (Reinvite) message to send to IMS core net again;

IMS core net forwards to peer user and invites (Reinvite) message again, and wherein local terminal SDP carries the terminal point information of the MGW into MGCF control;

After peer user receives invitation message again, alter course media bearer MGW, and return 200ok message;

200ok message is back to MGCF through IMS core net, and the media resource of MGW and peer user has been set up;

MGCF is replied by ANM notice MSC peer user;

MSC is invited to send connection (connect) message to initiation calling subscriber again;

Calling terminal returns to connect and confirms response, and two lateral terminals are completed by the voice connection of circuit domain, and original VOIP phone is transferred as traditional voice.