CN105228206B - Switching method and system between packet-switched domain and circuit switched domain voice business - Google Patents
Switching method and system between packet-switched domain and circuit switched domain voice business Download PDFInfo
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- CN105228206B CN105228206B CN201410227540.3A CN201410227540A CN105228206B CN 105228206 B CN105228206 B CN 105228206B CN 201410227540 A CN201410227540 A CN 201410227540A CN 105228206 B CN105228206 B CN 105228206B
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Abstract
The embodiment of the invention discloses the switching methods and system between a kind of packet-switched domain and circuit switched domain voice business, wherein method includes：During calling and called carry out voice communication, if wherein the ps domain voice service ability of a side changes, ps domain voice service ability update message is sent to another party and receives the response message of other side；If current speech call is the voice communication of the domain CS, two mobile terminals currently support ps domain voice service, caller to cut off the voice communication of the domain CS by called automatic connection and after connecting successfully to called initiation ps domain audio call；If current speech call is ps domain voice communication, one of mobile terminal does not support currently ps domain voice service, caller to cut off ps domain voice communication by called automatic connection and after connecting successfully to called initiation CS domain audio call.The embodiment of the present invention may be implemented the continuity of ps domain voice service and the voice service of the domain CS and smoothly switch.
Description
Technical field
The present invention relates to the communication technology, especially a kind of packet switch domain (PS) and circuit switching (CS) domain voice service it
Between switching method and system.
Background technique
In long term evolution (LTE) stage, PS is operated in using LTE call (Volte) voice service of LTE network access
Domain operates in the domain CS by the domain the CS voice service of 2G or 3G network access, both voice calling services will be considerably long
It is coexisted in a period of time.User is during carrying out voice communication in LTE network and 3G, 2G network (such as CDMA
The nets such as CDMA2000, wideband code division multiple access WCDMA, tdd CDMA TD-SCDMA and global system for mobile communications GSM
Network) between when switching, it is necessary to switch between Volte voice service and the voice service of the domain CS.
For the continuity for obtaining Volte voice service and the voice service of the domain CS, calling is kept not interrupt in network switching,
In a kind of existing implementation method, either single antenna continuity voice communication (SRVCC) or double antenna continuity voice
It converses (DRVCC), is all utilized in deployment continuity voice communication (VCC) server in IP multimedia subsystem (IMS) network
After the information changed as intermediate NE, the network where receiving mobile terminal, judges that user needs to switch, get through in advance
The the second tunnel voice service channel for needing to be switched to, actually puts through the second road audio call, then leads to calling and called mobile terminal
It crosses the second road audio call to link together, then disconnects first via audio call again.The implementation method is needed when commencing business
Increase VCC server newly, this adds increased the operations of operator and service deployment cost.
In existing another implementation method, in the LTE stage by double-standby terminal (SVLTE) technology, mentioned by the domain CS
For voice, data are provided by the domain LTE.In the implementation method, user be not available have the continuous time delay of short circuit, high speech quality,
It is serviced using the Volte of fine definition (HD) encoding and decoding speech.
Therefore, it is based on existing above two implementation method, operator needs increasing operation and service deployment cost, or
Person abandon improve user experience dilemma in make one.
Summary of the invention
One technical problem to be solved by the embodiment of the invention is that：A kind of packet-switched domain and circuit commutative field language are provided
Switching method and system between sound business, to realize the continuity of ps domain voice service and the voice service of the domain CS and smoothly cut
It changes, in the case where not reducing user experience, reduces operation and lower deployment cost.
Switching method between a kind of packet-switched domain provided in an embodiment of the present invention and circuit switched domain voice business, packet
It includes：
During main call mobile terminal and callee's mobile terminal carry out voice communication, if main call mobile terminal
It changes with the ps domain voice service ability of a mobile terminal in callee's mobile terminal, one mobile terminal is to master
Another mobile terminal in the side's of crying mobile terminal and callee's mobile terminal sends ps domain voice service ability update message simultaneously
The response message that another described mobile terminal returns is received, the ps domain voice service ability update message is for indicating described
Ps domain voice service ability information after the variation of one mobile terminal includes another described mobile terminal in the response message
Current ps domain voice service ability information；
If the voice communication that main call mobile terminal and callee's mobile terminal carry out is the voice communication of the domain CS, in response to master
The side's of crying mobile terminal and callee's mobile terminal currently support ps domain voice service, and main call mobile terminal is mobile to callee
Terminal initiation ps domain audio call, the ps domain audio call that callee's mobile terminal automatic connection main call mobile terminal is initiated,
And the domain CS voice communication is cut off after the ps domain audio call connects successfully；
If the voice communication that main call mobile terminal and callee's mobile terminal carry out is ps domain voice communication, in response to master
The side's of crying mobile terminal or callee's mobile terminal do not support ps domain voice service currently, and main call mobile terminal is mobile to callee
The terminal initiation domain CS audio call, the domain the CS audio call that callee's mobile terminal automatic connection main call mobile terminal is initiated,
And the ps domain voice communication is cut off after the domain the CS audio call connects successfully.
Another embodiment of the above method according to the present invention, the ps domain voice service are specially long term evolution call
Volte voice service.
Another embodiment of the above method according to the present invention, one mobile terminal is especially by Session initiation Protocol
Sip message sends ps domain voice service ability update message to another mobile terminal；
The response message is specially sip message.
Another embodiment of the above method according to the present invention, the sip message include SIP message (message) message
Or SIP selects (options) message；
The response message includes 200OK response message.
Another embodiment of the above method according to the present invention sends the ps domain voice industry of mobile terminal by sip message
Business ability information include：
By carrying the ps domain for whether supporting the label of ps domain voice service ability to send mobile terminal in a sip message
Voice service ability information；Or
By whether carrying the ps domain for supporting the label of ps domain voice service ability to send mobile terminal in a sip message
Voice service ability information.
Another embodiment of the above method according to the present invention, callee's mobile terminal automatic connection calling party are mobile
Terminal initiate ps domain audio call or the domain CS audio call include：
After callee's mobile terminal receives ps domain audio call or the domain CS audio call, ps domain audio call or CS are judged
Whether caller rs number in the audio call of domain is caller rs number in current speech call；
Only in the calling party that the caller rs number in ps domain audio call or the domain CS audio call is in current speech call
When number, callee's mobile terminal automatic connection ps domain audio call or the domain CS audio call.
Switching system between a kind of packet-switched domain provided in an embodiment of the present invention and circuit switched domain voice business, packet
Main call mobile terminal and callee's mobile terminal are included,
A mobile terminal in the main call mobile terminal and callee's mobile terminal, for mobile with calling party
During another mobile terminal in terminal and callee's mobile terminal carries out voice communication, if a mobile terminal
Ps domain voice service ability changes, and sends ps domain voice service ability update message to another described mobile terminal and connects
The response message that another described mobile terminal returns is received, the ps domain voice service ability update message is for indicating described one
Ps domain voice service ability information after a mobile terminal variation；
Another mobile terminal in the main call mobile terminal and callee's mobile terminal, for receive it is described
After the ps domain voice service ability update message that one mobile terminal is sent, response message is returned to one mobile terminal,
It include the current ps domain voice service ability information of another described mobile terminal in the response message；
The main call mobile terminal, the voice communication for being carried out in main call mobile terminal and callee's mobile terminal
When for the voice communication of the domain CS, ps domain voice service is currently supported in response to main call mobile terminal and callee's mobile terminal,
Ps domain audio call is initiated to callee's mobile terminal；Or the language carried out in main call mobile terminal and callee's mobile terminal
When sound call is ps domain voice communication, ps domain voice is not supported currently in response to main call mobile terminal or callee's mobile terminal
Business initiates the domain CS audio call to callee's mobile terminal；
Callee's mobile terminal, for the ps domain audio call that automatic connection main call mobile terminal is initiated, and
The ps domain audio call cuts off the domain CS voice communication after connecting successfully；Or the initiation of automatic connection main call mobile terminal
The domain CS audio call, and the ps domain voice communication is cut off after the domain the CS audio call connects successfully.
Another embodiment of above system according to the present invention, the ps domain voice service are specially long term evolution call
Volte voice service.
Another embodiment of above system according to the present invention, one mobile terminal is especially by Session initiation Protocol
Sip message sends ps domain voice service ability update message to another mobile terminal；The sip message includes SIP message
(message) message or SIP select (options) message；
The response message is specially sip message；The response message includes 200OK response message.
Another embodiment of above system according to the present invention, the main call mobile terminal or callee's mobile terminal tool
Whether body supports the label of ps domain voice service ability and sends the ps domain voice industry of mobile terminal by carrying in a sip message
Business ability information；Alternatively, in a sip message whether especially by carrying supports the label of ps domain voice service ability to move to send
The ps domain voice service ability information of dynamic terminal.
Another embodiment of above system according to the present invention, callee's mobile terminal are specifically receiving ps domain language
After sound calling or the domain CS audio call, judge whether the caller rs number in ps domain audio call or the domain CS audio call is current
Caller rs number in voice communication；Only the caller rs number in ps domain audio call or the domain CS audio call is current speech
When caller rs number in call, the automatic connection ps domain audio call or the domain CS audio call.
Switching side between the packet-switched domain provided based on the above embodiment of the present invention and circuit switched domain voice business
Method and system, during main call mobile terminal and callee's mobile terminal carry out voice communication, if one of mobile
The ps domain voice service ability of terminal changes, and can send ps domain voice service ability update to another mobile terminal and disappear
The response message for ceasing and receiving the return of another mobile terminal, when two mobile terminals currently support ps domain voice service,
Main call mobile terminal initiates ps domain audio call to callee's mobile terminal, and callee mobile terminal automatic connection calling party moves
The ps domain audio call that dynamic terminal is initiated, and it is logical that the domain the CS voice currently carried out is cut off after the ps domain audio call connects successfully
Words；When a side does not support ps domain voice service currently wherein, main call mobile terminal initiates the domain CS to callee's mobile terminal
Audio call, the domain the CS audio call that callee's mobile terminal automatic connection main call mobile terminal is initiated, and in the domain the CS language
The ps domain voice communication currently carried out is cut off after sound call proceeding success, to realize ps domain voice service and the domain CS voice industry
It the continuity of business and smoothly switches, in the case where not reducing user experience, reduces operation and lower deployment cost, reduce maintenance
Expense improves operation stability, promotes user's growth, optimizes customer experience.
Compared with prior art, the embodiment of the present invention, which can be effectively reduced, enables ps domain and the domain CS voice continuity business
Required cost, without purchasing server, no network operation expense, to existing network framework also without transformation demand, it is only necessary to mobile
The function of terminal achieves that.The operation expanding of the embodiment of the present invention is strong, and the rising of number of users can't bring any new
Expense, be conducive to extending user, and network stabilization is strong, and the failure in subnetwork endpoint or area will not influence other use
The experience at family.Initial stage is covered in LTE network, it is exactly because not easy to use that general commercial city of runing, which will not open Volte service,
Continuity guarantee plan, the embodiment of the present invention can change this status, can be used for arbitrary ps domain voice service and the domain CS
Handoff procedure between voice service.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiment of the present invention, and together with description for explaining
The principle of the present invention.
The present invention can be more clearly understood according to following detailed description referring to attached drawing, wherein：
The flow chart of the switching method one embodiment of Fig. 1 between ps domain of the present invention and the voice service of the domain CS.
The flow chart of switching method another embodiment of the Fig. 2 between ps domain of the present invention and the voice service of the domain CS.
The structural schematic diagram of the switching system one embodiment of Fig. 3 between ps domain of the present invention and the voice service of the domain CS.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should be noted that：Unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Simultaneously, it should be appreciated that for ease of description, the size of various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Mobile terminal in the embodiment of the present invention has in ps domain and the domain CS while sending and receiving the double receipts of double hairs of signal
And double nets register attached function, and mobile terminal has while carrying out CS voice communication all the way and all the way energy of ps domain voice communication
Power.When supporting the network (example of ps domain entering or leave either in the mobile whole terminal of main call mobile terminal and callee
Such as LTE network) overlay area when, can automatic trigger to other side provide ps domain voice service ability update informing.
The flow chart of the switching method one embodiment of Fig. 1 between ps domain of the present invention and the voice service of the domain CS.Such as Fig. 1 institute
Show, the switching method between the embodiment ps domain and the voice service of the domain CS includes：
110, during main call mobile terminal and callee's mobile terminal carry out voice communication, if calling party is mobile
Terminal and the ps domain voice service ability of a mobile terminal in callee's mobile terminal change, and a mobile terminal is to master
Another mobile terminal in the side's of crying mobile terminal and callee's mobile terminal sends ps domain voice service ability update message simultaneously
Receive the response message of another mobile terminal return.
Ps domain voice service ability update message therein is used to indicate the ps domain voice after a mobile terminal variation
Professional ability information includes the current ps domain voice service ability information of another mobile terminal in response message.
120, if the voice communication that main call mobile terminal and callee's mobile terminal carry out is the voice communication of the domain CS, response
According to the ps domain voice service ability information of the side's of crying mobile terminal and callee's mobile terminal, know main call mobile terminal and
Callee's mobile terminal currently supports ps domain voice service, and main call mobile terminal initiates ps domain language to callee's mobile terminal
Sound calling, callee's mobile terminal automatic response is (i.e.：Connect) the ps domain audio call initiated of main call mobile terminal, and at this
Ps domain audio call cuts off the voice communication of the domain CS after connecting successfully.
Later, the follow-up process of the present embodiment is not executed.
130, if the voice communication that main call mobile terminal and callee's mobile terminal carry out is ps domain voice communication, response
According to the ps domain voice service ability information of the side's of crying mobile terminal and callee's mobile terminal, know main call mobile terminal or
Callee's mobile terminal does not support ps domain voice service currently, and main call mobile terminal initiates the domain CS language to callee's mobile terminal
Sound calling, the domain the CS audio call that callee's mobile terminal automatic connection main call mobile terminal is initiated, and in the domain the CS voice
Ps domain voice communication is cut off after call proceeding success.
Switching side between the packet-switched domain provided based on the above embodiment of the present invention and circuit switched domain voice business
Method, during main call mobile terminal and callee's mobile terminal carry out voice communication, if one of mobile terminal
Ps domain voice service ability changes, and ps domain voice service ability update message can be sent to another mobile terminal and is connect
The response message for receiving the return of another mobile terminal, when two mobile terminals currently support ps domain voice service, calling party
Mobile terminal initiates ps domain audio call, callee's mobile terminal automatic connection main call mobile terminal to callee's mobile terminal
The ps domain audio call of initiation, and the domain the CS voice communication currently carried out is cut off after the ps domain audio call connects successfully；?
When wherein a side does not support ps domain voice service currently, main call mobile terminal is initiated the domain CS voice to callee's mobile terminal and is exhaled
It cries, the domain the CS audio call that callee's mobile terminal automatic connection main call mobile terminal is initiated, and in the domain the CS audio call
The ps domain voice communication currently carried out is cut off after connecting successfully, to realize the company of ps domain voice service Yu the voice service of the domain CS
Continue property and smoothly switch, in the case where not reducing user experience, reduces operation and lower deployment cost, reduce maintenance costs,
Operation stability is improved, user's growth is promoted, optimizes customer experience.
Ps domain voice service in the embodiment of the present invention specifically can be Volte voice service and be also possible to other any PS
Domain voice service.Without loss of generality, following embodiment of the present invention is illustratively illustrated by taking Volte voice service as an example, together
Sample is suitable for other ps domain voice services.
In one specific example of the switching method embodiment between ps domain of the present invention and the voice service of the domain CS, wherein one
A mobile terminal when triggering ps domain voice service ability update, specifically can by the mechanism of point-to-point inquiry inform opposite end with
And obtain the current ps domain professional ability in opposite end.For example, a mobile terminal can specifically be disappeared by Session initiation Protocol (SIP)
Breath, such as sip message include SIP message (message) message or SIP selection (options) message, to another mobile terminal
Ps domain voice service ability update message is sent, response message is specifically also possible to sip message, such as can be in sip message
200OK response message.
In another specific example of switching method embodiment between ps domain of the present invention and the voice service of the domain CS, pass through
When sip message sends the ps domain voice service ability information of mobile terminal, whether can specifically be propped up by carrying in a sip message
The label of ps domain voice service ability is held to send the ps domain voice service ability information of mobile terminal；Alternatively, can also pass through
Whether the ps domain voice service ability for supporting the label of ps domain voice service ability to send mobile terminal is carried in a sip message
Information.
For example, for sending ps domain voice service ability update message using SIP OPTIONS message, it can be in SIP
Accept-contact or contact header field in OPTIONS message include specified services label "+g.3gpp.icsi-ref=
" urn%3Aurn-7%3A3gpp-service.ims.icsi.mmtel " indicates that the mobile terminal has Volte voice industry
Business ability, if the network coverage changes the sip options message that triggering mobile terminal is sent and do not include this service label, then it represents that
The mobile terminal does not have Volte voice service ability temporarily.
An application based on the above embodiment of the present invention, one of mobile terminal trigger PS voice service ability update
Afterwards, if what is currently carried out originally is Volte voice communication, the present mobile terminal will not have due to leaving LTE covering
This ps domain voice service ability informs the ps domain voice service ability information after its variation of other side by sip options message
And after obtaining the response message of other side's return, the domain CS voice is initiated to former callee's mobile terminal from former main call mobile terminal and is exhaled
It cries, this CS calling can be by callee's mobile terminal automatic response, after connecting successfully, and callee's mobile terminal breaks Volte language
Sound call.Otherwise there is LTE covering area when a mobile terminal enters from no LTE covering area, if currently carry out originally
It is the domain CS audio call, then LTE network coverage condition, which sends the mobile terminal changed and sends to other side, has Volte language
Service label "+g.3gpp.icsi-ref=" the urn%3Aurn-7%3A3gpp- of sound business ability
The sip options message of service.ims.icsi.mmtel ", if the 200ok message that other side replys also is provided simultaneously with
Service label "+g.3gpp.icsi-ref=" the urn%3Aurn-7%3A3gpp- of Volte voice service ability
Service.ims.icsi.mmtel ", then former main call mobile terminal initiates new Volte voice to former callee's mobile terminal
Calling, callee's mobile terminal receive the rear automatic-answering back device Volte audio call and disconnect the domain the CS voice communication carried out originally,
To realize voice service smoothly switch and continuity.
Since mobile terminal has while sending and receiving the professional ability of Volte voice and CS voice, in order to avoid quilt
It is protected when the side's of crying mobile terminal connects the audio call that former main call mobile terminal is initiated with the calling generated when other users incoming call
Hold, the business such as call forwarding clash, can specify that callee's mobile terminal only can be with the ongoing domain CS of automatic connection
Other party number in voice communication calls the Volte audio call come or is carrying out the other side number in Volte voice communication
The domain the CS audio call that code calling comes, and automatically hang up current ongoing another way voice communication.
In another specific example of switching method embodiment between ps domain of the present invention and the voice service of the domain CS, it is called
When ps domain audio call or the domain CS audio call that square mobile terminal automatic connection main call mobile terminal is initiated, specifically receiving
To after ps domain audio call or the domain CS audio call, judge that the caller rs number in ps domain audio call or the domain CS audio call is
The no caller rs number in current speech call；Callee's mobile terminal is only in ps domain audio call or the domain CS audio call
Caller rs number be current speech call in caller rs number when, the automatic connection ps domain audio call or the domain CS voice are exhaled
It cries.
The flow chart of switching method another embodiment of the Fig. 2 between ps domain of the present invention and the voice service of the domain CS.Wherein
Caller, called party's mobile terminal be provided with Volte voice service ability.The embodiment is in the voice call process of the domain CS, quilt
For the side's of crying mobile terminal enters LTE covering area from no LTE covering area, by a specific Application Example to this hair
Bright embodiment is further elaborated.
210, during main call mobile terminal and callee's mobile terminal carry out the voice communication of the domain CS, callee is moved
Dynamic terminal learns that oneself enters the overlay area LTE according to the variation of network signal, and sending to main call mobile terminal includes being used for
Indicate the service label "+g.3gpp.icsi-ref=" urn%3Aurn-7%3A3gpp- for having Volte voice service ability
Sip options or sip the message message of service.ims.icsi.mmtel ".
220, main call mobile terminal also includes indicating have into the 200ok message that callee's mobile terminal is replied simultaneously
Service label "+g.3gpp.icsi-ref=" the urn%3Aurn-7%3A3gpp- of Volte voice service ability
service.ims.icsi.mmtel”。
230, sip options or the sipmessage message that main call mobile terminal is sent according to callee's mobile terminal
In include service label "+g.3gpp.icsi-ref=" urn%3Aurn-7%3A3gpp-
Service.ims.icsi.mmtel ", while knowing and oneself also having Volte voice service ability, then it is mobile eventually to callee
Initiate Volte audio call in end.
240, the Volte audio call that callee's mobile terminal automatic response main call mobile terminal is initiated, and at this
Volte audio call cuts off the voice communication of the domain CS after connecting successfully, to realize the voice service of the domain CS to Volte voice service
Smoothly switch.
In embodiment shown in Fig. 2, the IMS of calling party and callee can be the same IMS；Calling party and callee's
P/S-GW may be the same P/S-GW, and the IMS of calling party and callee are the same IMS at this time；Calling party and callee
ENodeB may be the same eNodeB, it is same that the P/S-GW of calling party and callee, which are same P/S-GW, IMS, at this time
One IMS.
Those of ordinary skill in the art will appreciate that：Realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes：ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The structural schematic diagram of the switching system one embodiment of Fig. 3 between ps domain of the present invention and the voice service of the domain CS.It should
The switching method embodiment stream between the above-mentioned each ps domain of the present invention and the voice service of the domain CS may be implemented in the switching system of embodiment
Journey.As shown in figure 3, the switching system of the embodiment includes calling party end and callee's terminal.Wherein：
A mobile terminal in main call mobile terminal and callee's mobile terminal, for main call mobile terminal
During carrying out voice communication with another mobile terminal in callee's mobile terminal, if the ps domain of a mobile terminal
Voice service ability changes, and sends ps domain voice service ability update message to another mobile terminal and receives another
The response message that mobile terminal returns, ps domain voice service ability update message are used to indicate the PS after a mobile terminal variation
Domain voice service ability information.Ps domain voice service in the embodiment of the present invention specifically can be Volte voice service can also be with
It is other any ps domain voice services.
Another mobile terminal in main call mobile terminal and callee's mobile terminal, for receiving said one
After the ps domain voice service ability update message that mobile terminal is sent, response message, the response are returned to a mobile terminal
It include the current ps domain voice service ability information of another mobile terminal in message.
Main call mobile terminal, the voice communication for carrying out in main call mobile terminal and callee's mobile terminal are CS
When the voice communication of domain, ps domain voice service is currently supported in response to main call mobile terminal and callee's mobile terminal, to quilt
The side's of crying mobile terminal initiates ps domain audio call；Or it is logical in the voice that main call mobile terminal and callee's mobile terminal carry out
When words are ps domain voice communication, ps domain voice industry is not supported currently in response to main call mobile terminal or callee's mobile terminal
Business initiates the domain CS audio call to callee's mobile terminal.
Callee's mobile terminal, for the ps domain audio call that automatic connection main call mobile terminal is initiated, and in the PS
Domain audio call cuts off the voice communication of the domain CS after connecting successfully；Or the domain the CS voice that automatic connection main call mobile terminal is initiated
Calling, and ps domain voice communication is cut off after the domain the CS audio call connects successfully.
In one specific example of the switching system embodiment between ps domain of the present invention and the voice service of the domain CS, a shifting
Dynamic terminal specifically can by Session initiation Protocol (SIP) message, such as sip message include SIP message (message) message or
SIP selects (options) message, sends ps domain voice service ability update message, response message tool to another mobile terminal
Body is also possible to sip message, such as can be the 200OK response message in sip message.
In another specific example of switching system embodiment between ps domain of the present invention and the voice service of the domain CS, caller
Whether square mobile terminal or callee's mobile terminal specifically can support ps domain voice service ability by carrying in a sip message
Label send the ps domain voice service ability information of mobile terminal；Alternatively, especially by whether branch is carried in a sip message
The label of ps domain voice service ability is held to send the ps domain voice service ability information of mobile terminal.
In another specific example of switching system embodiment between ps domain of the present invention and the voice service of the domain CS, it is called
Square mobile terminal specifically after receiving ps domain audio call or the domain CS audio call, judges ps domain audio call or the domain CS voice
Whether caller rs number in calling is caller rs number in current speech call；Only in ps domain audio call or the domain CS voice
When caller rs number in calling is the caller rs number in current speech call, the automatic connection ps domain audio call or the domain CS
Audio call.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with its
The difference of its embodiment, the same or similar part cross-reference between each embodiment.For system embodiment
For, since it is substantially corresponding with embodiment of the method, so being described relatively simple, referring to the portion of embodiment of the method in place of correlation
It defends oneself bright.
Method of the invention, system may be achieved in many ways.For example, software, hardware, firmware or soft can be passed through
Part, hardware, firmware any combination realize method and system of the invention.The said sequence of the step of for the method is only
It is to be illustrated, the step of method of the invention is not limited to sequence described in detail above, unless otherwise especially
Explanation.In addition, in some embodiments, also the present invention can be embodied as to record program in the recording medium, these program bags
It includes for realizing machine readable instructions according to the method for the present invention.Thus, the present invention also covers storage for executing according to this
The recording medium of the program of the method for invention.
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (11)
1. the switching method between a kind of packet switch domain (PS) and circuit switching (CS) domain voice service, which is characterized in that packet
It includes：
During main call mobile terminal and callee's mobile terminal carry out voice communication, if main call mobile terminal and quilt
The ps domain voice service ability of a mobile terminal changes in the side's of crying mobile terminal, and one mobile terminal is to calling party
Mobile terminal sends ps domain voice service ability update message with another mobile terminal in callee's mobile terminal and receives
The response message that another described mobile terminal returns, the ps domain voice service ability changes to be left including mobile terminal
Or entering long term evolution LTE covering area, the ps domain voice service ability update message is for indicating one mobile whole
The ps domain voice service ability information after changing is held, includes the current ps domain of another described mobile terminal in the response message
Voice service ability information；
If the voice communication that main call mobile terminal and callee's mobile terminal carry out is the voice communication of the domain CS, in response to calling party
Mobile terminal and callee's mobile terminal currently support ps domain voice service, and main call mobile terminal is to callee's mobile terminal
Initiation ps domain audio call, the ps domain audio call that callee's mobile terminal automatic connection main call mobile terminal is initiated, and
The ps domain audio call cuts off the domain CS voice communication after connecting successfully；
If the voice communication that main call mobile terminal and callee's mobile terminal carry out is ps domain voice communication, in response to calling party
Mobile terminal or callee's mobile terminal do not support ps domain voice service currently, and main call mobile terminal is to callee's mobile terminal
The initiation domain CS audio call, the domain the CS audio call that callee's mobile terminal automatic connection main call mobile terminal is initiated, and
The domain the CS audio call cuts off the ps domain voice communication after connecting successfully.
2. the method according to claim 1, wherein the ps domain voice service is specially long term evolution call
Volte voice service.
3. according to the method described in claim 2, it is characterized in that, one mobile terminal is especially by Session initiation Protocol
Sip message sends ps domain voice service ability update message to another mobile terminal；
The response message is specially sip message.
4. according to the method described in claim 3, it is characterized in that, the sip message includes SIP message (message) message
Or SIP selects (options) message；
The response message includes 200 OK response messages.
5. according to the method described in claim 3, it is characterized in that, sending the ps domain voice industry of mobile terminal by sip message
Business ability information include：
By carrying the ps domain voice for whether supporting the label of ps domain voice service ability to send mobile terminal in a sip message
Professional ability information；Or
By whether carrying the ps domain voice for supporting the label of ps domain voice service ability to send mobile terminal in a sip message
Professional ability information.
6. according to claim 1 to method described in 5 any one, which is characterized in that callee's mobile terminal connects automatically
The ps domain audio call or the domain CS audio call that continuous main call mobile terminal is initiated include：
After callee's mobile terminal receives ps domain audio call or the domain CS audio call, ps domain audio call or the domain CS language are judged
Sound calling in caller rs number whether be current speech call in caller rs number；
Only in the caller rs number that the caller rs number in ps domain audio call or the domain CS audio call is in current speech call
When, callee's mobile terminal automatic connection ps domain audio call or the domain CS audio call.
7. the switching system between a kind of packet switch domain (PS) and circuit switching (CS) domain voice service, including calling party are mobile
Terminal and callee's mobile terminal, which is characterized in that
A mobile terminal in the main call mobile terminal and callee's mobile terminal, for main call mobile terminal
During carrying out voice communication with another mobile terminal in callee's mobile terminal, if the ps domain of a mobile terminal
Voice service ability changes, and sends ps domain voice service ability update message to another described mobile terminal and receives institute
State another mobile terminal return response message, the ps domain voice service ability change left including mobile terminal or
Into long term evolution LTE covering area, the ps domain voice service ability update message is for indicating one mobile terminal
Ps domain voice service ability information after variation；
Another mobile terminal in the main call mobile terminal and callee's mobile terminal, for receive it is one
After the ps domain voice service ability update message that mobile terminal is sent, response message is returned to one mobile terminal, it is described
It include the current ps domain voice service ability information of another described mobile terminal in response message；
The main call mobile terminal, the voice communication for carrying out in main call mobile terminal and callee's mobile terminal are CS
When the voice communication of domain, ps domain voice service is currently supported in response to main call mobile terminal and callee's mobile terminal, to quilt
The side's of crying mobile terminal initiates ps domain audio call；Or it is logical in the voice that main call mobile terminal and callee's mobile terminal carry out
When words are ps domain voice communication, ps domain voice industry is not supported currently in response to main call mobile terminal or callee's mobile terminal
Business initiates the domain CS audio call to callee's mobile terminal；
Callee's mobile terminal, for the ps domain audio call that automatic connection main call mobile terminal is initiated, and in the PS
Domain audio call cuts off the domain CS voice communication after connecting successfully；Or the domain CS that automatic connection main call mobile terminal is initiated
Audio call, and the ps domain voice communication is cut off after the domain the CS audio call connects successfully.
8. system according to claim 7, which is characterized in that the ps domain voice service is specially long term evolution call
Volte voice service.
9. system according to claim 8, which is characterized in that one mobile terminal is especially by Session initiation Protocol
Sip message sends ps domain voice service ability update message to another mobile terminal；The sip message includes SIP message
(message) message or SIP select (options) message；
The response message is specially sip message；The response message includes 200 OK response messages.
10. system according to claim 9, which is characterized in that the main call mobile terminal or callee's mobile terminal
Especially by carrying the ps domain voice for whether supporting the label of ps domain voice service ability to send mobile terminal in a sip message
Professional ability information；Alternatively, in a sip message whether especially by carrying supports the label of ps domain voice service ability to send
The ps domain voice service ability information of mobile terminal.
11. according to system described in claim 7 to 10 any one, which is characterized in that callee's mobile terminal is specific
After receiving ps domain audio call or the domain CS audio call, the calling party in ps domain audio call or the domain CS audio call is judged
Number whether be current speech call in caller rs number；The only calling party in ps domain audio call or the domain CS audio call
When number is the caller rs number in current speech call, the automatic connection ps domain audio call or the domain CS audio call.
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| CN107529200B (en) * | 2016-06-21 | 2021-02-23 | 中兴通讯股份有限公司 | Method and device for releasing resources after network switching of terminal in VoLTE (Voice over Long term evolution) |
| CN108834187B (en) * | 2018-06-12 | 2021-05-28 | 深圳市沃特沃德股份有限公司 | Mobile terminal and temperature control method thereof |
| CN112566205B (en) * | 2020-12-10 | 2023-12-22 | 维沃移动通信有限公司 | Communication service processing method and device |
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