CN103796265A - SRVCC switchover processing method and device based on video colloquy - Google Patents
SRVCC switchover processing method and device based on video colloquy Download PDFInfo
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Abstract
The invention discloses an SRVCC switchover processing method and device based on a video colloquy, and relates to the technical field of communication. The SRVCC switchover processing method and device based on the video colloquy resolve the problem that switchover of the voice service fails due to the fact that a user does not open a 3G video colloquy service. The method comprises the steps that an eMSC receives a switchover request; the eMSC sends an inquiry request to an HLR or HSS according to the switchover request and inquires whether a terminal opens the video colloquy service in the 3G network; when the eMSC receives the inquiry result sent by the HLR or HSS that the terminal does not open the video colloquy service in the 3G network, the eMSC sends an eSRVCC switchover request to an ATCF through an STN-SR, and switches the video colloquy service of the terminal from a voice communication service in a PS field to a voice communication service in a CS field. The SRVCC switchover processing method and device based on the video colloquy are suitable for being adopted when the video service carries out SRVCC switchover processing.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of SRVCC switching handling method and device based on video session.
Background technology
At Long Term Evolution (Long Term Evolution, LTE) area of coverage adopts Long Term Evolution voice (Voice over Long Term Evolution, VoLTE) can realize speech business, this speech business comprises video call service and traditional voice call technology, wherein, so-called VoLTE refers to the LTE speech business based on IP Multimedia System (IP Multimedia Subsystem, IMS).In the time that user roams out the LTE area of coverage, conventionally adopt single wireless voice calling continuity (Single Radio Voice Call Continuity, SRVCC) technology is switched to user's speech business third generation mobile network (Third Generation, 3G) and guarantees the continuity of speech business from VoLTE.
At present, prior art is (the video Single Radio Voice Call Continuity of the video single wireless voice calling continuity to VoLTE video call service, vSRVCC) switching flow stipulates, so-called vSRVCC refers to the SRVCC switching flow of initiating for video call service.In the time carrying out vSRVCC switching flow, Mobility Management Entity (Mobility Management Entity, MME) receive after the handover request that terminal initiates service quality rating mark (Quality of Service class identifier in session, QCI) value be 1 and vSRVCC switch packet switching (Packet Switch Domain, PS) carrying of territory bearing identification is peeled away, then to (the Enhanced MobileSwitching Center of enhancement mode mobile switching centre, eMSC) send PS territory to circuit switching (Circuit Switched Domain, CS) handover request in territory, eMSC needs to the 3rd third-generation mobile communication technology (The3rd Generation Telecommunication after receiving handover request, 3G) the corresponding bearing resource of wireless side request, business coherence and continuity application server (Business consistency and continuity of the application server, the medium surface of SCC-AS) initiating voice and video upgrades, after the 324M coding/decoding negotiation of 3G completes, switching completes, video call service is switched to the CS territory of 3G network to be continued to carry out from the PS territory of VoLTE network.
But in the time that the vSRVCC that adopts prior art to carry out video call service switches, in reality operation, most of user does not open 3G video call service, therefore causes being switched to after 3G network, video call service stops.
Summary of the invention
Embodiments of the invention provide a kind of SRVCC switching handling method and device based on video session, can solve the problem of not opening the speech business handoff failure that 3G video call service causes because of user.
First aspect, the embodiment of the present invention provides a kind of SRVCC switching handling method based on video session, comprising:
EMSC receives handover request, and described handover request is for asking the video call service of terminal to be switched to CS territory from PS territory;
Described eMSC according to described handover request to attaching position register (Home Location Register, or local subscribed services device (Home Subscriber Server HLR), HSS) send inquiry request, inquire about described terminal and in 3G network, whether open video call service;
Be that described terminal while not opening video call service in 3G network when described eMSC receives Query Result that described HLR or described HSS send, described eMSC passes through Session Hand-off number STN – SR to ATCF(Session Hand-off control function, Access transfer control Fouction) equipment initiation enhancement mode single wireless voice calling continuity (enhanced Single Radio Voice Call Continuity, eSRVCC) handover request, the video call service of described terminal is switched to the voice calling service in described CS territory from described PS territory, wherein said STN – SR is voice conversation forwarding number.
Second aspect, the embodiment of the present invention provides a kind of SRVCC switch processing device based on video session, comprising:
Receiving element, for receiving handover request, described handover request is for asking the video call service of terminal to be switched to CS territory from PS territory;
Transmitting element, sends inquiry request for the described handover request receiving according to described receiving element to HLR or HSS, inquires about described terminal and in 3G network, whether opens video call service;
Processing unit, for being that described terminal is not in the time that 3G network is opened video call service when the Query Result that receives described HLR or described HSS transmission, initiate eSRVCC handover request by STN – SR to ATCF equipment, the voice calling service that the video call service of described terminal is switched to described CS territory from described PS territory, wherein said STN – SR is voice conversation forwarding number.
The embodiment of the present invention provides a kind of SRVCC switching handling method and device based on video session, the mode that can whether open by inquiry terminal video call service in 3G network select to switch after speech business type in 3G network.In the time that terminal is not opened video call service in 3G network, use STN – SR to initiate eSRVCC handover request to ATCF equipment, by eSRVCC handover request, the video call service in PS territory in VoLTE network is switched to the traditional voice talk business in CS territory in 3G network.With in prior art, switch the video call service in PS territory in VoLTE network switched in 3G network compared with visual telephone service by vSRVCC, can be in the time that user open 3G video call service, current video call service is fallen after rise for traditional voice talk business, avoid the termination of voice call, guarantee the continuity of user speech business.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of a kind of SRVCC switching handling method based on video session that Fig. 1 provides for the embodiment of the present invention;
The flow chart of the SRVCC switching handling method of the another kind that Fig. 2 provides for the embodiment of the present invention based on video session;
The structural representation of a kind of SRVCC switch processing device based on video session that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the SRVCC switch processing device of the another kind that Fig. 4 provides for the embodiment of the present invention based on video session.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of SRVCC switching handling method based on video session, and as shown in Figure 1, the method comprises:
Step 101, eMSC receives handover request, and described handover request is switched to CS territory by terminal from PS territory for request.
Adopt VoLTE can realize video call service at the LTE area of coverage, VoLTE is the voice calling service based on IMS network, and IMS is a kind of brand-new multimedia service form, and it can meet, and terminal is more novel, the demand of more diversified multimedia service.In the time that user roams out the LTE area of coverage, terminal sends SRVCC handover request to MME.Concrete, terminal to report network measure situation report, LTE wireless side determines to initiate the switching of SRVCC to 3G network according to network measure situation report.Optionally, carry SRVCC and switch (Handover, HO) indication in handover request, the current request of this Parametric Representation is handover request.
When MME receives this handover request, the carrying corresponding to packet-switched domain PS bearing identification vSRVCC markes PS bearer ID of the QCI=1 in terminal current sessions and video SRVCC switching peeled away, then above-mentioned two carryings are initiated to the switching flow of PS territory to CS territory, MME sends the request that terminal is switched to CS territory from PS territory to eMSC.Optionally, QCI=1 mark current business is voice calling service, and vSRVCC markes PS bearer ID mark current business is video call service.
Optionally, in this handover request, carry voice conversation forwarding number (Session Transfer Number for SRVCC, STN-SR), C-MSISDN(associated user number, Correlation Mobile Subscriber International ISDN/PSTN number), three parameters of vSRVCC indication parameter.
Wherein, in the LTE of terminal attaching process, user needs signing STN-SR and vSTN-SR in HSS, the route that STN-SR switches for voice, and vSTN-SR is for the route of video switch.VoLTE user is in registration, and access is shifted and controlled function (Access Transfer Control Function, ATCF) meeting to user assignment STN-SR number and write in HSS, and vSTN-SR is directly signing in HSS.
Wherein, when eMSC switches in initiation session, calling number is MSISDN(subscriber phone number, Mobile Subscriber International ISDN/PSTN number), called number is STN-SR, and this calling is routed to SCC-AS in IMS network, and then SCC-AS can be associated with former session with C-MSISDN, and the media that are initiated to far-end switch, far-end refers to initiate the opposite end of terminal of switching.Therefore, the PS territory and the CS territory that act as associated switching of C-MSISDN.
Step 102, eMSC sends inquiry request according to handover request to HLR or HSS, and whether inquiry terminal opens video call service in 3G network.
Optionally, eMSC receives after handover request, sends Query Information to HLR or HSS, and described Query Information comprises whether inquiry terminal opens the Query Information of video call service in 3G network.Due in the time that terminal is not opened video call service in 3G network, in 3G network, can not continue video session, in the time that terminal is opened video call service in 3G network, in 3G network, can continue video session, therefore need to determine whether terminal opens video call service in 3G network.
In the time that eMSC receives terminal that HLR or HSS send do not open the Query Result of video call service in 3G network, illustrate that this terminal can not continue video session in 3G network, therefore eMSC initiates the voice handover request of eSRVCC, carrying out in the process of switching to CS territory in PS territory, video call service is fallen after rise for traditional voice calling service.The SRVCC handoff technique that described eSRVCC handoff technique is a kind of enhancement mode, in the present embodiment, by eSRVCC, video call service is switched to voice calling service, compared with voice calling service being switched with by SRVCC, eSRVCC technology can shorten handover delay, improves user's experience.
Further alternative, after this step, also comprise: delete the described vSRVCC indication parameter that described handover request comprises, this indication parameter can be a character string, for example " vSRVCC ", and the switching object that is used to indicate handover request is video call service; Send announcement information to described MME, described announcement information is used for notifying the current SRVCC of described MME to switch to eSRVCC switching, so that described announcement information is transmitted to PCRF by described MME, is triggered the dedicated bearing that discharges IMS video by described PCRF;
ATCF is to ATGW(Acess Transfer Gateway Founction, gateway is shifted in access) transmission configuration messages, this configuration messages comprises new CS territory access leg media path information, for by PS territory access leg media path information current new CS territory access leg media path information updating; Then ATCF is initiated to the session updates of SCC-AS, and SCC-AS is to the PS territory access leg initiation session dismantling operation of former session, and video call service falls into voice calling service after rise in 3G network.
Wherein, send announcement information to described MME, and the execution sequence that ATCF sends configuration messages to ATGW does not limit.
Optionally, be that described terminal while opening video call service in 3G network when described eMSC receives Query Result that described HLR or HSS send, illustrate that this terminal can continue video call service in 3G network, therefore eMSC initiates the video switch request of vSRVCC.
The embodiment of the present invention provides a kind of SRVCC switching handling method based on video session, the mode that can whether open by inquiry terminal video call service in 3G network select to switch after speech business type in 3G network.In the time that terminal is not opened video call service in 3G network, use STN – SR to initiate eSRVCC handover request to ATCF, by eSRVCC handover request, the video call service in PS territory in VoLTE network is switched to the traditional voice talk business in CS territory in 3G network.With in prior art, switch the video call service in PS territory in VoLTE network switched in 3G network compared with visual telephone service by vSRVCC, can be in the time that user open 3G video call service, current video call service is fallen after rise for traditional voice talk business, avoid the termination of voice calling service, guarantee the continuity of user speech business.
The embodiment of the present invention provides the another kind of SRVCC switching handling method based on video session, and as shown in Figure 2, the method comprises:
Optionally, adopt VoLTE can realize video call service at the LTE area of coverage, in the time that user roams out the LTE area of coverage, terminal sends SRVCC handover request to MME.
In described handover request, carry STN-SR, C-MSISDN, three parameters of vSRVCC indication parameter.
Optionally, in the LTE of UE attaching process, user needs signing STN-SR and vSTN-SR in HSS, the route that STN-SR switches for voice, and vSTN-SR is for the route of video switch.VoLTE user is in registration, and access is shifted control function ATCF and can and be write in HSS to user assignment STN-SR number, and vSTN-SR is directly signing in HSS.
Due in the time that terminal is not opened video call service in 3G network, in 3G network, can not continue video session, in the time that terminal is opened video call service in 3G network, in 3G network, can continue video session, therefore need to determine whether terminal opens video call service in 3G network.
Optionally, the Query Result sending as HLR or the HSS of eMSC reception is that terminal is opened video call service in 3G network, illustrate that this terminal can continue video call service in 3G network, therefore eMSC sends and prepares handover request to object MSC, and object MSC is to the bearing resource of 3G network side request BS30.It should be noted that, the bearing resource of BS30 is the bearing resource that carries video call service in 3G network.
SCC-AS discharges after the IMS audio access leg of former session, notice eMSC, and eMSC receives after the notice of SCC-AS, and transmission video session is switched to the response message of CS from PS, and terminal has completed the switching of PS territory to CS territory.
It should be noted that, the vSRVCC hand-off process flow process after step 207 is identical with the vSRVCC hand-off process flow process of prior art, in the present embodiment, is not described in detail.
Optionally, STN – SR is that in step 202, MME sends to the parameter of carrying in the handover request of eMSC.
Because the current voice calling service that switches to is switched, therefore need the parameter that represents video switch to delete, delete by vSRVCC indication parameter.
Step 212, eMSC sends announcement information to described MME, the eSRVCC switching that described announcement information switches to voice for notifying the current SRVCC of described MME.
Switch because this switches to voice calling service, former session is video session, therefore needs the dedicated bearing of the IMS video of former session to discharge, so that other video sessions re-use, thereby saves bearing resource.
ATCF is for doing the grappling of signaling plane, and controls ATGW and do the grappling of medium surface.So-called grappling is exactly that handoff functionality is by which network element control.
Be that ATGW is by PS territory access leg media path information current new CS territory access leg media path information updating.Optionally, in prior art owing to need to far-end being carried out the renewal of video and voice medium, therefore cause do not guarantee switching time, ATCF and ATGW in the present embodiment, are increased, while making to upgrade, do not need video and voice medium to far-end to upgrade, only need under the control of ATCF, be carried out the renewal of media path information by ATGW, therefore reduce the time delay of handoff procedure and voice interruption process.
It should be noted that, the execution sequence of step 212 and step 214 does not limit, and the order that can describe according to the present embodiment is carried out, and also can first perform step 214, then perform step 212, or step 212 and step 214 is carried out simultaneously.
The embodiment of the present invention provides a kind of SRVCC switching handling method based on video session, the mode that can whether open by inquiry terminal video call service in 3G network select to switch after speech business type in 3G network.In the time that terminal is not opened video call service in 3G network, use STN – SR to initiate eSRVCC handover request to ATCF, by eSRVCC handover request, the video call service in PS territory in VoLTE network is switched to the traditional voice talk business in CS territory in 3G network.With in prior art, switch the video call service in PS territory in VoLTE network switched to compared with the visual telephone service in CS territory in 3G network by vSRVCC, can be in the time that user open 3G video call service, current video call service is fallen after rise for traditional voice talk business, avoid the termination of voice calling service, guarantee the continuity of user speech business.
The embodiment of the present invention provides a kind of SRVCC switch processing device based on video session, and this device can be eMSC, and as shown in Figure 3, described device comprises: receiving element 31, transmitting element 32 and processing unit 33, wherein,
Receiving element 31, for receiving handover request, handover request is for asking the video call service of terminal to be switched to circuit switching (CS) territory from packet switching PS territory;
Transmitting element 32, sends inquiry request for the handover request receiving according to receiving element 31 to attaching position register HLR or local subscribed services device HSS, and whether inquiry terminal opens video call service in the 3rd third-generation mobile communication technology 3G network;
Processing unit 33, for being that terminal is not in the time that 3G network is opened video call service when the Query Result that receives HLR or HSS transmission, initiate enhancement mode single wireless voice calling continuity eSRVCC handover request by Session Hand-off number STN – SR to ATCF, the voice calling service that the video call service of terminal is switched to CS territory from PS territory, wherein STN – SR is voice conversation forwarding number.
Further, as shown in Figure 4, this device also comprises delete cells 41;
In the handover request that transmitting element 32 sends, comprise and be used to indicate the video single wireless voice calling continuity vSRVCC indication parameter that current talking business is video call service;
Further, transmitting element 32 is for after the vSRVCC indication parameter of deleting handover request at delete cells 41 and comprising, send announcement information to Mobility Management Entity MME, announcement information is used for notifying MME current video single wireless voice calling continuity vSRVCC to switch to voice eSRVCC switching, so that announcement information is transmitted to PCRF by MME, triggered the dedicated bearing that discharges video by PCRF.
Further, processing unit 33 for transmitting element 32 according to handover request after HLR or HSS send inquiry request, be that terminal while opening video call service in 3G network when receiving element 31 receives Query Result that HLR or HSS send, initiate the request of vSRVCC video switch by video session forwarding number vSTN – SR to SCC-AS, to complete the video switch of video call service from PS territory to CS territory, wherein vSTN – SR is video session forwarding number.
Further, as shown in Figure 4, this device also comprises:
Bearing resource request unit 42, before initiating vSRVCC video switch request by video session forwarding number vSTN – SR to SCC-AS at processing unit 33, to the bearing resource of 3G wireless side request BS30, after being assigned with the bearing resource of convenient BS30, eMSC uses vSTN – SR to initiate the request of vSRVCC video switch to SCC-AS;
Transmitting element 32, for initiate as SCC-AS video and voice media address renewal and be discharged into former IMS audio access leg after, send video session to MME and be switched to the response message in CS territory from PS territory, to video call service is switched in 3G network.
The embodiment of the present invention provides a kind of SRVCC switch processing device based on video session, the mode that can whether open by inquiry terminal video call service in 3G network select to switch after speech business type in 3G network.In the time that terminal is not opened video call service in 3G network, use STN – SR to initiate eSRVCC handover request to ATCF, by eSRVCC handover request, the video call service in PS territory in VoLTE network is switched to visual telephone service in 3G network.With in prior art, switch the video call service in PS territory in VoLTE network switched to compared with the traditional voice talk business in CS territory in 3G network by vSRVCC, can be in the time that user open 3G video call service, current video call service is fallen after rise for traditional voice talk business, avoid the termination of voice calling service, guarantee the continuity of user speech business.
It should be noted that, device embodiment described above is only schematic, the wherein said unit as separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in multiple network element.Can select according to the actual needs some or all of module wherein to realize the object of the present embodiment scheme.Those of ordinary skills, in the situation that not paying creative work, are appreciated that and implement.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential common hardware by software and realize, can certainly comprise that application-specific integrated circuit (ASIC), dedicated cpu, private memory, special components and parts etc. realize by specialized hardware, but in a lot of situation, the former is better execution mode.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 is stored in the storage medium can read, as the floppy disk of computer, USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc., comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) carry out the method described in the present invention each embodiment.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, what each embodiment stressed is and the difference of other embodiment.Especially,, for device and system embodiment, because it is substantially similar in appearance to embodiment of the method, so describe fairly simplely, relevant part is referring to the part explanation of embodiment of the method.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (10)
1. the SRVCC switching handling method based on video session, is characterized in that, comprising:
The eMSC of enhancement mode mobile switching centre receives handover request, and described handover request is for asking the video call service of terminal to be switched to circuit switching (CS) territory from packet switching PS territory;
Described eMSC sends inquiry request according to described handover request to attaching position register HLR or local subscribed services device HSS, inquires about described terminal and whether open video call service in the 3rd third-generation mobile communication technology 3G network;
Be that described terminal while not opening video call service in 3G network when described eMSC receives Query Result that described HLR or described HSS send, described eMSC initiates enhancement mode single wireless voice calling continuity eSRVCC handover request by Session Hand-off number STN – SR to Session Hand-off control function ATCF equipment, the voice calling service that the video call service of described terminal is switched to described CS territory from described PS territory, wherein said STN – SR is voice conversation forwarding number.
2. method according to claim 1, is characterized in that, comprises and be used to indicate the video single wireless voice calling continuity vSRVCC indication parameter that current talking business is video call service in described handover request;
Described eMSC by described STN – SR after described ATCF equipment is initiated described eSRVCC handover request, described method further comprises:
Described eMSC deletes the described vSRVCC indication parameter comprising in described handover request.
3. method according to claim 2, is characterized in that, after described eMSC deletes the described vSRVCC indication parameter comprising in described handover request, described method further comprises:
Described eMSC sends announcement information to Mobility Management Entity MME, described announcement information is used for notifying the current single wireless voice calling continuity SRVCC of described MME to switch to voice eSRVCC switching, so that described announcement information is transmitted to strategy and charging rule functions unit PCRF by described MME, triggered the dedicated bearing that discharges video by described PCRF;
ATCF equipment shifts gateway A TGW to access and sends configuration messages, carries new CS territory access leg media path information in described configuration messages, upgrades for the PS territory access leg media path information to current; Described ATCF sends session updates information to business coherence and continuity application server SCC-AS, so that described SCC-AS, to the PS territory access leg initiation session dismantling operation in former session, makes described video call service fall into voice calling service after rise in described CS territory.
4. method according to claim 1, is characterized in that, described eMSC according to described handover request after described HLR or described HSS send inquiry request, described method further comprises:
Be that described terminal while opening video call service in 3G network when described eMSC receives Query Result that described HLR or described HSS send, described eMSC initiates the request of vSRVCC video switch by video session forwarding number vSTN – SR to SCC-AS, to complete the video switch of described video call service from described PS territory to described CS territory, wherein said vSTN – SR is video session forwarding number.
5. method according to claim 4, is characterized in that, before initiating the request of vSRVCC video switch by video session forwarding number vSTN – SR to described SCC-AS at described eMSC, described method further comprises:
Described eMSC is to the bearing resource of described 3G wireless side request BS30, and after being assigned with the bearing resource of the described BS30 of box lunch, described eMSC uses vSTN – SR to initiate the request of described vSRVCC video switch to described SCC-AS;
When described SCC-AS initiate video and voice media address renewal and be discharged into former IMS audio access leg after, described eMSC sends video session to described MME and is switched to the response message in CS territory from PS territory, to described video call service is switched in described 3G network.
6. the SRVCC switch processing device based on video session, is characterized in that, comprising:
Receiving element, for receiving handover request, described handover request is for asking the video call service of terminal to be switched to circuit switching (CS) territory from packet switching PS territory;
Transmitting element, sends inquiry request for the described handover request receiving according to described receiving element to attaching position register HLR or local subscribed services device HSS, inquires about described terminal and whether open video call service in the 3rd third-generation mobile communication technology 3G network;
Processing unit, for being that described terminal is not in the time that 3G network is opened video call service when the Query Result that receives described HLR or described HSS transmission, initiate enhancement mode single wireless voice calling continuity eSRVCC handover request by Session Hand-off number STN – SR to Session Hand-off control function ATCF equipment, the voice calling service that the video call service of described terminal is switched to described CS territory from described PS territory, wherein said STN – SR is voice conversation forwarding number.
7. device according to claim 6, is characterized in that, described device also comprises delete cells;
In the described handover request that described transmitting element sends, comprise and be used to indicate the video single wireless voice calling continuity vSRVCC indication parameter that current talking business is video call service;
Described delete cells, for described transmitting element by described STN – SR after described ATCF equipment is initiated described eSRVCC handover request, delete the described vSRVCC indication parameter comprising in described handover request.
8. device according to claim 7, it is characterized in that, described transmitting element is for after deleting at described delete cells the described vSRVCC indication parameter that described handover request comprises, send announcement information to Mobility Management Entity MME, described announcement information is used for notifying the current single wireless voice calling continuity SRVCC of described MME to switch to voice eSRVCC switching, so that described announcement information is transmitted to strategy and charging rule functions unit PCRF by described MME, triggered the dedicated bearing that discharges video by described PCRF.
9. device according to claim 6, it is characterized in that, described processing unit for described transmitting element according to described handover request after described HLR or described HSS send inquiry request, be that described terminal while opening video call service in 3G network when described receiving element receives Query Result that described HLR or described HSS send, initiate the request of vSRVCC video switch by video session forwarding number vSTN – SR to business coherence and continuity application server SCC-AS, to complete the video switch of described video call service from described PS territory to described CS territory, wherein said vSTN – SR is video session forwarding number.
10. device according to claim 9, is characterized in that, described device also comprises:
Bearing resource request unit, before initiating vSRVCC video switch request by video session forwarding number vSTN – SR to described SCC-AS at described processing unit, to the bearing resource of described 3G wireless side request BS30, after being assigned with the bearing resource of the described BS30 of box lunch, described eMSC uses vSTN – SR to initiate the request of described vSRVCC video switch to described SCC-AS;
Described transmitting element, for after the renewal of the media address of described SCC-AS initiation video and voice being discharged into former IMS audio access leg, send video session to described MME and be switched to the response message in CS territory from PS territory, to described video call service is switched in described 3G network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410046780.3A CN103796265B (en) | 2014-02-10 | 2014-02-10 | A kind of SRVCC switching handling methods and device based on video session |
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| CN201410046780.3A CN103796265B (en) | 2014-02-10 | 2014-02-10 | A kind of SRVCC switching handling methods and device based on video session |
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| CN103796265A true CN103796265A (en) | 2014-05-14 |
| CN103796265B CN103796265B (en) | 2017-07-21 |
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| CN104602276A (en) * | 2014-12-25 | 2015-05-06 | 北京理工大学 | Adaptive optimizing method for eSRVCC switching parameter settings |
| CN104756548A (en) * | 2014-06-30 | 2015-07-01 | 华为技术有限公司 | Switching method, base station, and mobile management body |
| CN105871823A (en) * | 2016-03-25 | 2016-08-17 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for processing IMS (IP Multimedia Subsystem) service and terminal |
| CN105873146A (en) * | 2016-06-07 | 2016-08-17 | 中国联合网络通信集团有限公司 | Method and device for processing voice service |
| CN106231654A (en) * | 2016-09-12 | 2016-12-14 | 中国联合网络通信集团有限公司 | Video traffic changing method based on dual-card dual-standby terminal and device |
| WO2016206165A1 (en) * | 2015-06-24 | 2016-12-29 | 中兴通讯股份有限公司 | Method and device for increasing data transmission rate in video call |
| CN106303356A (en) * | 2016-08-28 | 2017-01-04 | 青岛百灵信息科技股份有限公司 | Video call method between a kind of VoLTE and PSTN net |
| CN106332193A (en) * | 2016-08-18 | 2017-01-11 | 中国联合网络通信集团有限公司 | Method for processing video call service and terminal equipment |
| CN106412479A (en) * | 2015-07-31 | 2017-02-15 | 展讯通信（上海）有限公司 | Mobile terminal video calling method for mobile terminal |
| CN106487528A (en) * | 2015-08-27 | 2017-03-08 | 中国移动通信集团公司 | A kind of acquisition methods of user VoLTE signing state and equipment |
| CN106791126A (en) * | 2016-12-27 | 2017-05-31 | 努比亚技术有限公司 | Dialing mechanism, mobile terminal and method |
| CN106792941A (en) * | 2016-12-20 | 2017-05-31 | 北京小米移动软件有限公司 | The processing method and processing device of injection frequency continuous voice call switching |
| CN106856603A (en) * | 2015-12-09 | 2017-06-16 | 中国联合网络通信集团有限公司 | Open method, the apparatus and system of VoLTE services |
| CN106973145A (en) * | 2017-02-28 | 2017-07-21 | 宇龙计算机通信科技(深圳)有限公司 | The screen switching and double screen terminal of double screen terminal |
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| CN110278215A (en) * | 2019-07-16 | 2019-09-24 | 中国联合网络通信集团有限公司 | A kind of call-establishing method and system, conversation management functional entity |
| CN110868765A (en) * | 2018-08-28 | 2020-03-06 | 中国移动通信集团重庆有限公司 | Method, device and equipment for processing special voice bearer and storage medium |
| CN115834549A (en) * | 2022-11-24 | 2023-03-21 | 中国联合网络通信集团有限公司 | Call switching method and device, electronic equipment and computer readable medium |
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| CN104756548A (en) * | 2014-06-30 | 2015-07-01 | 华为技术有限公司 | Switching method, base station, and mobile management body |
| WO2016000195A1 (en) * | 2014-06-30 | 2016-01-07 | 华为技术有限公司 | Handover method, base station and mobility management entity |
| CN104756548B (en) * | 2014-06-30 | 2019-03-08 | 华为技术有限公司 | Switching method, base station and mobile management entity |
| CN104602276A (en) * | 2014-12-25 | 2015-05-06 | 北京理工大学 | Adaptive optimizing method for eSRVCC switching parameter settings |
| CN104602276B (en) * | 2014-12-25 | 2018-01-16 | 北京理工大学 | The adaptive optimization method that a kind of eSRVCC handoff parameters are set |
| CN106331565A (en) * | 2015-06-24 | 2017-01-11 | 中兴通讯股份有限公司 | Method and device for improving data transmission speed of video call |
| WO2016206165A1 (en) * | 2015-06-24 | 2016-12-29 | 中兴通讯股份有限公司 | Method and device for increasing data transmission rate in video call |
| CN106412479B (en) * | 2015-07-31 | 2020-03-24 | 展讯通信（上海）有限公司 | Mobile terminal video calling method and system |
| CN106412479A (en) * | 2015-07-31 | 2017-02-15 | 展讯通信（上海）有限公司 | Mobile terminal video calling method for mobile terminal |
| CN106487528B (en) * | 2015-08-27 | 2020-04-17 | 中国移动通信集团公司 | Method and device for acquiring VoLTE subscription state of user |
| CN106487528A (en) * | 2015-08-27 | 2017-03-08 | 中国移动通信集团公司 | A kind of acquisition methods of user VoLTE signing state and equipment |
| CN106856603B (en) * | 2015-12-09 | 2020-03-13 | 中国联合网络通信集团有限公司 | VoLTE service opening method, device and system |
| CN106856603A (en) * | 2015-12-09 | 2017-06-16 | 中国联合网络通信集团有限公司 | Open method, the apparatus and system of VoLTE services |
| WO2017161728A1 (en) * | 2016-03-25 | 2017-09-28 | 宇龙计算机通信科技(深圳)有限公司 | Processing method and processing apparatus for ims service, and terminal |
| CN105871823A (en) * | 2016-03-25 | 2016-08-17 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for processing IMS (IP Multimedia Subsystem) service and terminal |
| CN105873146A (en) * | 2016-06-07 | 2016-08-17 | 中国联合网络通信集团有限公司 | Method and device for processing voice service |
| CN105873146B (en) * | 2016-06-07 | 2019-06-14 | 中国联合网络通信集团有限公司 | Voice service processing method and device |
| CN107547819B (en) * | 2016-06-29 | 2020-04-28 | 中兴通讯股份有限公司 | Video switching method, device and system |
| CN107547819A (en) * | 2016-06-29 | 2018-01-05 | 中兴通讯股份有限公司 | A kind of method, apparatus and system of video switching |
| CN106332193A (en) * | 2016-08-18 | 2017-01-11 | 中国联合网络通信集团有限公司 | Method for processing video call service and terminal equipment |
| CN106303356A (en) * | 2016-08-28 | 2017-01-04 | 青岛百灵信息科技股份有限公司 | Video call method between a kind of VoLTE and PSTN net |
| CN106231654A (en) * | 2016-09-12 | 2016-12-14 | 中国联合网络通信集团有限公司 | Video traffic changing method based on dual-card dual-standby terminal and device |
| CN106231654B (en) * | 2016-09-12 | 2019-12-03 | 中国联合网络通信集团有限公司 | Video traffic switching method and device based on dual-card dual-standby terminal |
| CN106792941B (en) * | 2016-12-20 | 2019-12-13 | 北京小米移动软件有限公司 | Method and device for processing single radio frequency voice call continuity switching |
| CN106792941A (en) * | 2016-12-20 | 2017-05-31 | 北京小米移动软件有限公司 | The processing method and processing device of injection frequency continuous voice call switching |
| CN106791126A (en) * | 2016-12-27 | 2017-05-31 | 努比亚技术有限公司 | Dialing mechanism, mobile terminal and method |
| CN106973145A (en) * | 2017-02-28 | 2017-07-21 | 宇龙计算机通信科技(深圳)有限公司 | The screen switching and double screen terminal of double screen terminal |
| WO2018161804A1 (en) * | 2017-03-10 | 2018-09-13 | 中兴通讯股份有限公司 | Method and system for switching from ims call to circuit-switched call |
| CN108574670A (en) * | 2017-03-10 | 2018-09-25 | 中兴通讯股份有限公司 | Switching method and system of a kind of IMS call to circuit domain |
| CN110868765A (en) * | 2018-08-28 | 2020-03-06 | 中国移动通信集团重庆有限公司 | Method, device and equipment for processing special voice bearer and storage medium |
| CN110278215A (en) * | 2019-07-16 | 2019-09-24 | 中国联合网络通信集团有限公司 | A kind of call-establishing method and system, conversation management functional entity |
| CN110278215B (en) * | 2019-07-16 | 2022-01-25 | 中国联合网络通信集团有限公司 | Call establishment method and system, and session management function entity |
| CN115834549A (en) * | 2022-11-24 | 2023-03-21 | 中国联合网络通信集团有限公司 | Call switching method and device, electronic equipment and computer readable medium |
| CN115834549B (en) * | 2022-11-24 | 2024-04-02 | 中国联合网络通信集团有限公司 | Call switching method, device, electronic equipment and computer readable medium |
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