CN102377755A - Voice code conversion method and device - Google Patents
Voice code conversion method and device Download PDFInfo
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- CN102377755A CN102377755A CN2010102611035A CN201010261103A CN102377755A CN 102377755 A CN102377755 A CN 102377755A CN 2010102611035 A CN2010102611035 A CN 2010102611035A CN 201010261103 A CN201010261103 A CN 201010261103A CN 102377755 A CN102377755 A CN 102377755A
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Abstract
The invention provides a voice code conversion method and a voice code conversion device and relates to the field of communication. The voice code conversion method for an Internet protocol multimedia subsystem (IMS) comprises the following steps that: in a process that a calling IMS terminal sends a session invitation message to a called IMS terminal through a calling BAC, the calling BAC adds a voice code type supported by the calling BAC into the session invitation message; the called IMS terminal finds out a voice code type supported by the called IMS terminal from the voice code type of the session invitation message and generates a session response message of which the voice code type is the same as the voice code type supported by the called IMS terminal; and in a process that the called IMS terminal sends the session response message to the calling IMS terminal through a called BAC, an IMS core network and the calling BAC, the calling BAC modifies the voice code type of the session response message to be the voice code type supported by the calling IMS terminal. Due to conversion of voice codes by the BAC, communication among different terminals of the IMS network can be realized.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of speech coding conversion method and device.
Background technology
IMS (IP Multimedia Subsystem, IP multimedia system) network is the network of a fusion, has both supported the access of fixed terminal, also supports the access of portable terminal.The operation commercial city of China is a full-service operator at present.In view of the IMS network possesses with inserting irrelevant characteristic, fixedly IMS network and mobile IMS network can not distinguished by operator in on-premise network, therefore inevitably occur the problem of portable terminal and fixed terminal coexistence in the IMS of the same operator net.But, move with fixed terminal because the characteristic of channel that inserts is different, so developed different media coding forms.For example, G.711 fixedly the IMS terminal is general supports, G.723; G.729 speech coding moves the IMS terminal and then supports EVRC (Enhanced Variable RateCoder, Enhanced Variable Rate Coder); EVRC-B (Enhanced Variable RateCodec B; The Enhanced Variable Rate Coder Type B), AMR coded systems such as (Adaptive Multi-Rate, AMRs).
As the network basic capacity, the IMS network must satisfy the basic communication between the different terminals user.Consider the present situation of present fixed terminal and portable terminal, exist the terminal aspect to solve and two kinds of solutions of network level solution thinkings.
The solution thinking of terminal aspect is that all terminals of disposing in the network exist a kind of voice and video coding to occur simultaneously at least.Because network characteristic is different, the coding that is fit to fixed network possibly not be adapted at using among the comparatively nervous mobile network of bandwidth; And be fit to mobile network's coding because the limitation of voice quality and fixed network network equipment code capacity possibly also be not suitable in fixed network, promoting deployment.Simultaneously, consider and disposed mass of terminals equipment in the existing network that this solution can only be as a kind of alternative.
Solution thinking for network level; The general a solution of industry is that AS (the Application Server that a status is in the network core aspect is set in network at present; Application server); MRF (Media Resource Function, Media Resource Server) by this AS control subordinate is responsible for specially the speech coding in the territory is changed.A deficiency of this mode is exactly that all callings all will be triggered to this AS and handle.Make no matter whether the calling and called both sides are same type codings in all callings, all will pass through AS and handle, the path that causes calling out makes a circulation.And this AS need handle in all territories and call out, and it is heavier to load.Such as, even fixed terminal also need be handled through AS the calling of fixed terminal, unnecessary circuitous processing appears.
Summary of the invention
The objective of the invention is to propose a kind of speech coding conversion method and device, for the IMS network equipment is realized the speech coding conversion between the different terminals.
For realizing above-mentioned purpose; The invention provides the speech coding conversion method of a kind of IMS of being used for system; Comprise: send in the process of session invitation message to called IMS terminal through caller BAC at caller IMS terminal, said caller BAC adds the speech coding type that said caller BAC supports in said session invitation message; Said called IMS terminal is found out the speech coding type that said called IMS terminal is supported in the speech coding type of said session invitation message, generating the speech coding type is the conversational response message of the speech coding type of said called IMS terminal support; Send in the process of said conversational response message to said caller IMS terminal through called BAC, IMS core net and said caller BAC in said called IMS terminal, said caller BAC is revised as the speech coding type that said caller IMS terminal is supported with the speech coding type of said conversational response message.
In one embodiment; Saidly send in the process of session invitation message to called IMS terminal through caller BAC at caller IMS terminal; Said caller BAC adds the speech coding type that said caller BAC supports in said session invitation message; Comprise: said caller IMS sends said session invitation message to said caller BAC in the terminal, and said session invitation message comprises the speech coding type that said caller IMS terminal is supported; Said caller BAC adds the speech coding type that said caller BAC supports in the said session invitation message that receives; Said caller BAC sends to called IMS terminal with the said session invitation message of the speech coding type of having added said caller BAC support through the IMS core network.
In one embodiment; Saidly send in the process of said conversational response message to said caller IMS terminal through called BAC, IMS core net and said caller BAC in said called IMS terminal; Said caller BAC is revised as the speech coding type that said caller IMS terminal is supported with the speech coding type of said conversational response message; Comprise: said caller BAC receives the said conversational response message that said called IMS terminal is sent, and said conversational response message comprises the speech coding type that said called IMS terminal is supported; Said caller BAC is revised as the speech coding type of said conversational response message the speech coding type of said caller IMS terminal support according to the speech coding type of the support of the said caller IMS terminal in the said session invitation message; The said conversational response message that said caller BAC will comprise the speech coding type of supporting at said caller IMS terminal sends to said caller IMS terminal.
In one embodiment; The speech coding type that said caller BAC supports according to the said caller IMS terminal in the said session invitation message; The speech coding type of said conversational response message is revised as the speech coding type that said caller IMS terminal is supported; Comprise: said caller BAC selects to be redefined for the speech coding type of the preferred speech coding type in said caller IMS terminal as said conversational response message in the speech coding type that the said caller IMS terminal of said session invitation message is supported; Said caller BAC selects to be redefined for the speech coding type of the speech coding type of that said caller BAC preferentially supports and the support of said caller IMS terminal as said conversational response message.
In one embodiment, the speech coding conversion method also comprises: said caller BAC is that the medium of the speech coding type supported of said called IMS terminal are connected through setting up type of coding between said called BAC and the said called IMS terminal; The medium of between said caller BAC and said caller IMS terminal, setting up type of coding and be the speech coding type of supporting at said caller IMS terminal are connected.
For realizing above-mentioned purpose; The present invention also provides the speech coding conversion equipment of a kind of IMS of being used for system; Comprise: type of coding adds module; Be used at caller IMS terminal through the process of caller BAC to called IMS terminal transmission session invitation message, the speech coding type of in said session invitation message, adding said caller BAC support; Type of coding is searched module; Be used for finding out the speech coding type that said called IMS terminal is supported in the speech coding type of said session invitation message, generating the speech coding type is the conversational response message of the speech coding type of said called IMS terminal support; The type of coding modified module; Be used for sending the process of said conversational response message through called BAC, IMS core net and said caller BAC to said caller IMS terminal, the speech coding type of said conversational response message is revised as the speech coding type that said caller IMS terminal is supported in said called IMS terminal.
In one embodiment, said type of coding adds module and comprises: receiving element, be used to receive the said session invitation message that send at said caller IMS terminal, and said session invitation message comprises the speech coding type that said caller IMS terminal is supported; Adding device is used for adding the speech coding type that said caller BAC supports in the said session invitation message that receives; Transmitting element is used for the said session invitation message of the speech coding type of having added said caller BAC support is sent to called IMS terminal through the IMS core network.
In one embodiment, said type of coding modified module comprises: receiving element, be used to receive the said conversational response message that said called IMS terminal is sent, and said conversational response message comprises the speech coding type that said called IMS terminal is supported; Revise the unit, be used for speech coding type, the speech coding type of said conversational response message is revised as the speech coding type of said caller IMS terminal support according to the said caller IMS terminal support of said session invitation message; Transmitting element is used for the said conversational response message that comprises the speech coding type of supporting at said caller IMS terminal is sent to said caller IMS terminal.
In one embodiment; Said type of coding modified module also comprises: the speech coding preferred cell; Be used for speech coding type in the support of the said caller IMS terminal of said session invitation message; Selection is redefined for the speech coding type of the preferred speech coding type in said caller IMS terminal as said conversational response message, or selects to be redefined for the speech coding type of the speech coding type of that said caller BAC preferentially supports and the support of said caller IMS terminal as said conversational response message.
In one embodiment; Described speech coding conversion equipment; Also comprise: connect and set up module; Being used at said caller BAC is that the medium of the speech coding type supported of said called IMS terminal are connected through setting up type of coding between said called BAC and the said called IMS terminal, and between said caller BAC and said caller IMS terminal, to set up type of coding be that the medium of the speech coding type of said caller IMS terminal support are connected.
Based on technique scheme, in the IMS system, when the IMS terminal of supporting dissimilar speech codings communicates, can realize conversion through BAC to speech coding.The realization of the embodiment of the invention need not increase external equipment, does not change existing IMS session flow process, realizes easyly, economical, both economizes on resources, and simplifies call path again.
Description of drawings
Accompanying drawing described herein is used to provide further explanation of the present invention, constitutes a part of the present invention.Illustrative examples of the present invention and explanation thereof only are used to explain the present invention, but do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation according to the application scenarios of the embodiment of the invention.
Fig. 2 is the flow chart according to the speech coding conversion method that is used for the IMS system of the embodiment of the invention.
Fig. 3 is for be used for the flow chart of the speech coding conversion method of IMS system according to another embodiment of the present invention.
Fig. 4 is the structural representation according to the speech coding conversion equipment that is used for the IMS system of the embodiment of the invention.
Fig. 5 is for be used for the structural representation of the speech coding conversion equipment of IMS system according to another embodiment of the present invention.
Fig. 6 is the structural representation that adds module according to the type of coding of the embodiment of the invention.
Fig. 7 is the structural representation according to the type of coding modified module of the embodiment of the invention.
Embodiment
With reference to the accompanying drawings the present invention is described in more detail, exemplary embodiment of the present invention wherein is described.In the accompanying drawings, identical label is represented identical or similar assembly or element.
Fig. 1 is the structural representation according to the application scenarios 100 of the embodiment of the invention.Application scenarios 100 comprises Calling Side UE (User Equipment; Subscriber equipment) 102 BAC (BorderAccess Controller; The edge access control equipment) 104 P-CSCF (Proxy-CallSession Control Function; Proxy-Call Session Control Function) 106, I-CSCF (Interrogating-CSCF, inquiry-CSCF) 108, S-CSCF (Serving-CSCF, business-CSCF) 120, HSS (HomeSubscriber Server; Home subscriber server) 122, and callee side UE 112, BAC114, P-CSCF 116, I-CSCF 118, S-CSCF 130, HSS 132.
Application scenarios 100 is an IMS network system application scenarios.The IMS system can satisfy the more demand of novelty, more diversified multimedia service of present terminal client.At present, the IMS system is considered to the core technology of next generation network, also is to solve to move with fixed network to merge, and introduces the professional important way of differentiation such as voice, data, the triple fusions of video.The maximum characteristics of IMS technology are that the business in traditional communication system, control and access part are separated fully; Become an individual system separately, the interface with unified standard between each system connects, and such structure can be simplified network configuration; Reduce investment outlay, be easy to management.
Wherein, P-CSCF 106 and 116 is acting servers, for UE 102 and 112 provides access point.Such as, the signaling of UE 102 all will be passed through P-CSCF 106, signaling is forwarded to the I-CSCF 108 and/or the S-CSCF 120 of IMS network by P-CSCF 106.Equally, the signaling of UE 112 all will be passed through P-CSCF 116, signaling is forwarded to the I-CSCF 118 and/or the S-CSCF 130 of IMS network by P-CSCF 116.
I-CSCF 108 and 118 can be used to determine call request is transferred to suitable S-CSCF 120 and 130 respectively.Such as, when receiving a call request, I-CSCF 108 can inquire HSS 122, which S-CSCF is fit to this calling of service, then corresponding S-CSCF (like S-CSCF 120) is arrived in this Call Forwarding.
S-CSCF 120 and 130 provides user institute requested service for UE 102 and 112, as helps the user to seek called subscriber etc.Such as, S-CSCF 120 can obtain the configuration information of UE102 from HSS 122, obtain the service that UE 102 orders, and goes to visit corresponding AS again, lets AS that concrete service is provided.Wherein, AS is used for storage and carries out service logic, provides various IMS professional.An IMS network can allow a plurality of S-CSCF 120, and each can have different ability, and HSS 122 can distribute suitable S-CSCF120 for it according to the configuration information of UE 102.
HSS 122 and 132 is used to preserve user data, and the service contracting data of UE 102 and 112.
BAC 104 is positioned between IMS core network and the IMS user (UE 102); BAC114 is positioned between IMS core network and the IMS user (UE 112); For the user under the multiple network environment provides service access and intercommunication; Realize functions such as security protection, media management simultaneously, and cooperate bearer network to realize QoS (Quality of Service, service quality) management.The network interworking of different network environments can comprise following three kinds of situation: the user is in private network, the IMS core net is in public network; The user is in public network, the IMS core network is in private network; The user is in private network, and the IMS core net is in another private network.BAC 104 and 114 can support the IMS/ soft switch service to pass through at the FW/NAT of user network side (Fire Wall/Network Address Translation, fire compartment wall/network address translation).Aspect media conversion, the control and management that BAC 104 and 114 can support Media Stream can realize the function such as switching control, statistics, analysis, bandwidth control to medium.BAC 104 and 114 can also carry out correct route and carry out resource management message.In addition, BAC 104 and 114 can support the processed and the QoS mark function of packet.BAC 104 and 114 can be used as the application layer firewall of user access networks and IMS core net, realizes the security protection to the IMS core net.
According to embodiments of the invention; When the UE that supports dissimilar speech codings 102 with UE112 during respectively as calling terminal and terminal called; The contact point BAC104 that UE 102 inserts IMS can realize the conversion to speech coding; Thereby the medium of between UE 102 and BAC 104, setting up type of coding and be the speech coding type that UE 102 supports are connected; The medium of between UE 112 and BAC 104, setting up type of coding and be the speech coding type that UE 112 supports are connected, to satisfy the communication between the different types of terminals user.Realize the conversion of speech coding not needing to be provided with in addition AS and MRF by BAC 104, both can economize on resources, simplify call path again.
Fig. 2 is the flow chart according to the speech coding conversion method 200 that is used for the IMS system of the embodiment of the invention.
In step 202, send in the process of session invitation message to called IMS terminal through caller BAC at caller IMS terminal, caller BAC adds the speech coding type that caller BAC supports in session invitation message.
In step 204, called IMS terminal is found out the speech coding type that called IMS terminal is supported in the speech coding type of session invitation message, and generating the speech coding type is the conversational response message of the speech coding type of called IMS terminal support.
In step 206; Send in the process of conversational response message to caller IMS terminal through called BAC, IMS core net and caller BAC in called IMS terminal, caller BAC is revised as the speech coding type that caller IMS terminal is supported with the speech coding type of session response message.
In the IMS system, when the IMS terminal of supporting dissimilar speech codings communicates, can in conversation message, add the speech coding type through BAC and realize conversion speech coding.The realization of the embodiment of the invention need not increase external equipment, does not change existing IMS session flow process, realizes easyly, economical, both economizes on resources, and simplifies call path again.
Fig. 3 is for be used for the flow chart of the speech coding conversion method 300 of IMS system according to another embodiment of the present invention.
In step 302, session invitation message is sent to caller BAC in caller IMS terminal, and session invitation message comprises the speech coding type that caller IMS terminal is supported.Such as session invitation message is form as follows, and wherein the speech coding supported of caller IMS terminal is for G.711a, G.711u, G.726.
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a＝rtpmap：106G726-40/8000
a＝rtpmap：101telephone-event/8000
a＝sendrecv
In step 304, caller BAC adds the speech coding type that caller BAC supports in the session invitation message that receives.Such as; Caller BAC has added all coded sets that caller BAC supports in the session invitation message that receives; Can comprise AMR, EVRC etc.; At this moment, G.711a the speech coding list of types of session invitation message can comprise, G.711u, G.726, AMR, EVRC etc., its session invitation message can be as follows:
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a＝rtpmap：102G726-32/8000
a＝rtpmap：106G726-40/8000
a＝rtpmap：101telephone-event/8000
a＝sendrecv
In step 306, caller BAC sends to called IMS terminal with the session invitation message of the speech coding type of having added caller BAC support through the IMS core network.Such as, caller BAC sends to P-CSCF with the session invitation message, and P-CSCF sends to the session invitation message S-CSCF of caller IMS terminal attaching.This S-CSCF carries out addressing to called IMS terminal, this session invitation message is transmitted to the I-CSCF of called IMS terminal ownership.The I-CSCF inquiry HSS of called IMS terminal ownership; Be retrieved as the S-CSCF address of called IMS terminal service; And the session invitation message is transmitted to the S-CSCF into called IMS terminal service, and then the session invitation message is sent to called IMS terminal through the P-CSCF of callee side, called BAC according to this address.
In step 308; Called IMS terminal is found out the speech coding type that called IMS terminal is supported in the speech coding type of session invitation message; Generate the speech coding type and be the conversational response message of the speech coding type that called IMS terminal supports, and with the session response message through called BAC and IMS network destined caller BAC.Only support the EVRC coding such as called IMS terminal.Called IMS terminal can be found out the speech coding type of EVRC as conversational response message from the speech coding list of types of session invitation message.
In step 310, caller BAC receives the conversational response message that called IMS terminal is sent, and conversational response message comprises the speech coding type that called IMS terminal is supported, such as EVRC.
In step 312, caller BAC is that the medium of the speech coding type (like EVRC) supported of called IMS terminal are connected through setting up type of coding between called BAC and the called IMS terminal.
In step 314, caller BAC is revised as the speech coding type (like EVRC) of session response message the speech coding type (as G.726) of caller IMS terminal support according to the speech coding type of the support of the caller IMS terminal in the session invitation message.In one embodiment, caller BAC can select to be redefined for the speech coding type of the preferred speech coding type in caller IMS terminal as conversational response message in the speech coding type that the caller IMS terminal of session invitation message is supported.Such as, caller IMS terminal most preferred speech coding type is come first of the speech coding type supported at caller IMS terminal, the speech coding type that caller BAC then can selecting sequence ranks the first is as the speech coding type of conversational response message.In another embodiment, caller BAC can select to be redefined for the speech coding type of the speech coding type of that caller BAC preferentially supports and the support of caller IMS terminal as conversational response message.BAC can adopt the preferred speech coding that is provided with in advance according to the situation of bandwidth or the effect of coding, is implemented in network side coding selection is controlled.
In step 316, the conversational response message that caller BAC will comprise the speech coding type of supporting at caller IMS terminal sends to caller IMS terminal.
In step 318, the medium of between caller BAC and caller IMS terminal, setting up type of coding and be the speech coding type of supporting at caller IMS terminal are connected.
Fig. 4 is the structural representation according to the speech coding conversion equipment 400 that is used for the IMS system of the embodiment of the invention.Speech coding conversion equipment 400 comprises that type of coding adds module 402, type of coding is searched module 404 and type of coding modified module 406.
Type of coding adds module 402, is used at caller IMS terminal through the process of caller BAC to called IMS terminal transmission session invitation message, the speech coding type of in session invitation message, adding caller BAC support.
Type of coding is searched module 404, is used for finding out the speech coding type that called IMS terminal is supported in the speech coding type of session invitation message, and generating the speech coding type is the conversational response message of the speech coding type of called IMS terminal support.
Type of coding modified module 406; Be used for sending the process of conversational response message through called BAC, IMS core net and caller BAC to caller IMS terminal, the speech coding type of session response message is revised as the speech coding type that caller IMS terminal is supported in called IMS terminal.
Fig. 5 is for be used for the structural representation of the speech coding conversion equipment 500 of IMS system according to another embodiment of the present invention.Speech coding conversion equipment 500 comprises that type of coding adds module 502, type of coding is searched module 504, type of coding modified module 506 and is connected and sets up module 508.
Type of coding adds module 502, is used at caller IMS terminal through the process of caller BAC to called IMS terminal transmission session invitation message, the speech coding type of in session invitation message, adding caller BAC support.Be illustrated in figure 6 as the structural representation that adds module 502 according to the type of coding of the embodiment of the invention.Type of coding adds module 502 and comprises: receiving element 12, adding device 14 and transmitting element 16.Wherein, receiving element 12 is used to receive the session invitation message that send at caller IMS terminal, and session invitation message comprises the speech coding type that caller IMS terminal is supported.Adding device 14 is used for adding the speech coding type that caller BAC supports in the session invitation message that receives.Transmitting element 16 is used for the session invitation message of the speech coding type of having added caller BAC support is sent to called IMS terminal through the IMS core network.
Type of coding is searched module 504, is used for finding out the speech coding type that called IMS terminal is supported in the speech coding type of session invitation message, and generating the speech coding type is the conversational response message of the speech coding type of called IMS terminal support.
Type of coding modified module 506; Be used for sending the process of conversational response message through called BAC, IMS core net and caller BAC to caller IMS terminal, the speech coding type of session response message is revised as the speech coding type that caller IMS terminal is supported in called IMS terminal.Be illustrated in figure 7 as structural representation according to the type of coding modified module 506 of the embodiment of the invention.Type of coding modified module 506 comprises receiving element 22, revises unit 24, transmitting element 26 and speech coding preferred cell 28.Wherein, receiving element 22 is used to receive the conversational response message that called IMS terminal is sent, and conversational response message comprises the speech coding type that called IMS terminal is supported.Revise unit 24, be used for speech coding type, the speech coding type of session response message is revised as the speech coding type of caller IMS terminal support according to the caller IMS terminal support of session invitation message.Transmitting element 26 is used for the conversational response message that comprises the speech coding type of supporting at caller IMS terminal is sent to caller IMS terminal.Speech coding preferred cell 28; Be used for speech coding type in the support of the caller IMS terminal of session invitation message; Selection is redefined for the speech coding type of the preferred speech coding type in caller IMS terminal as conversational response message, or selects to be redefined for the speech coding type of the speech coding type of that caller BAC preferentially supports and the support of caller IMS terminal as conversational response message.
Connect and set up module 508; Being used at caller BAC is that the medium of the speech coding type supported of called IMS terminal are connected through setting up type of coding between called BAC and the called IMS terminal, and between caller BAC and caller IMS terminal, to set up type of coding be that the medium of the speech coding type of caller IMS terminal support are connected.
In the IMS system, when the IMS terminal of supporting dissimilar speech codings communicates, can realize conversion through BAC to speech coding.The realization of the embodiment of the invention need not increase external equipment, does not change existing IMS session flow process, realizes easyly, economical, both economizes on resources, and simplifies call path again.
Description of the invention provides for example with for the purpose of describing, and is not the disclosed form that exhaustively perhaps limit the invention to.A lot of modifications and variation are obvious for those of ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment that have various modifications that the present invention's design is suitable for special-purpose.
Claims (10)
1. a speech coding conversion method that is used for the IMS system is characterized in that, comprising:
Send in the process of session invitation message to called IMS terminal through caller BAC at caller IMS terminal, said caller BAC adds the speech coding type that said caller BAC supports in said session invitation message;
Said called IMS terminal is found out the speech coding type that said called IMS terminal is supported in the speech coding type of said session invitation message, generating the speech coding type is the conversational response message of the speech coding type of said called IMS terminal support; With
Send in the process of said conversational response message to said caller IMS terminal through called BAC, IMS core net and said caller BAC in said called IMS terminal, said caller BAC is revised as the speech coding type that said caller IMS terminal is supported with the speech coding type of said conversational response message.
2. speech coding conversion method according to claim 1; It is characterized in that; Saidly send in the process of session invitation message to called IMS terminal through caller BAC at caller IMS terminal; Said caller BAC adds the speech coding type that said caller BAC supports in said session invitation message, comprising:
Said caller IMS sends said session invitation message to said caller BAC in the terminal, and said session invitation message comprises the speech coding type that said caller IMS terminal is supported;
Said caller BAC adds the speech coding type that said caller BAC supports in the said session invitation message that receives; With
Said caller BAC sends to called IMS terminal with the said session invitation message of the speech coding type of having added said caller BAC support through the IMS core network.
3. speech coding conversion method according to claim 2; It is characterized in that; Saidly send in the process of said conversational response message to said caller IMS terminal through called BAC, IMS core net and said caller BAC in said called IMS terminal; Said caller BAC is revised as the speech coding type that said caller IMS terminal is supported with the speech coding type of said conversational response message, comprising:
Said caller BAC receives the said conversational response message that said called IMS terminal is sent, and said conversational response message comprises the speech coding type that said called IMS terminal is supported;
Said caller BAC is revised as the speech coding type of said conversational response message the speech coding type of said caller IMS terminal support according to the speech coding type of the support of the said caller IMS terminal in the said session invitation message; With
The said conversational response message that said caller BAC will comprise the speech coding type of supporting at said caller IMS terminal sends to said caller IMS terminal.
4. speech coding conversion method according to claim 3; It is characterized in that; The speech coding type that said caller BAC supports according to the said caller IMS terminal in the said session invitation message; The speech coding type of said conversational response message is revised as the speech coding type that said caller IMS terminal is supported, comprises:
Said caller BAC selects to be redefined for the speech coding type of the preferred speech coding type in said caller IMS terminal as said conversational response message in the speech coding type that the said caller IMS terminal of said session invitation message is supported; Or
Said caller BAC selects to be redefined for the speech coding type of the speech coding type of that said caller BAC preferentially supports and the support of said caller IMS terminal as said conversational response message.
5. speech coding conversion method according to claim 1 is characterized in that, also comprises:
Is that the medium of the speech coding type supported of said called IMS terminal are connected at said caller BAC through setting up type of coding between said called BAC and the said called IMS terminal; With
The medium of between said caller BAC and said caller IMS terminal, setting up type of coding and be the speech coding type of supporting at said caller IMS terminal are connected.
6. a speech coding conversion equipment that is used for the IMS system is characterized in that, comprising:
Type of coding adds module, is used at caller IMS terminal through the process of caller BAC to called IMS terminal transmission session invitation message, the speech coding type of in said session invitation message, adding said caller BAC support;
Type of coding is searched module; Be used for finding out the speech coding type that said called IMS terminal is supported in the speech coding type of said session invitation message, generating the speech coding type is the conversational response message of the speech coding type of said called IMS terminal support; With
The type of coding modified module; Be used for sending the process of said conversational response message through called BAC, IMS core net and said caller BAC to said caller IMS terminal, the speech coding type of said conversational response message is revised as the speech coding type that said caller IMS terminal is supported in said called IMS terminal.
7. speech coding conversion equipment according to claim 6 is characterized in that, said type of coding adds module and comprises:
Receiving element is used to receive the said session invitation message that send at said caller IMS terminal, and said session invitation message comprises the speech coding type that said caller IMS terminal is supported;
Adding device is used for adding the speech coding type that said caller BAC supports in the said session invitation message that receives; With
Transmitting element is used for the said session invitation message of the speech coding type of having added said caller BAC support is sent to called IMS terminal through the IMS core network.
8. speech coding conversion equipment according to claim 7 is characterized in that, said type of coding modified module comprises:
Receiving element is used to receive the said conversational response message that said called IMS terminal is sent, and said conversational response message comprises the speech coding type that said called IMS terminal is supported;
Revise the unit, be used for speech coding type, the speech coding type of said conversational response message is revised as the speech coding type of said caller IMS terminal support according to the said caller IMS terminal support of said session invitation message; With
Transmitting element is used for the said conversational response message that comprises the speech coding type of supporting at said caller IMS terminal is sent to said caller IMS terminal.
9. speech coding conversion equipment according to claim 8 is characterized in that, said type of coding modified module also comprises:
The speech coding preferred cell; Be used for speech coding type in the support of the said caller IMS terminal of said session invitation message; Selection is redefined for the speech coding type of the preferred speech coding type in said caller IMS terminal as said conversational response message, or selects to be redefined for the speech coding type of the speech coding type of that said caller BAC preferentially supports and the support of said caller IMS terminal as said conversational response message.
10. speech coding conversion equipment according to claim 6 is characterized in that, also comprises:
Connect and set up module; Being used at said caller BAC is that the medium of the speech coding type supported of said called IMS terminal are connected through setting up type of coding between said called BAC and the said called IMS terminal, and between said caller BAC and said caller IMS terminal, to set up type of coding be that the medium of the speech coding type of said caller IMS terminal support are connected.
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| CN201010261103.5A CN102377755B (en) | 2010-08-24 | 2010-08-24 | Voice code conversion method and device |
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| CN110753021A (en) * | 2018-07-24 | 2020-02-04 | 成都鼎桥通信技术有限公司 | Data transmission method, device and storage medium |
| CN113765910A (en) * | 2021-09-01 | 2021-12-07 | 珠海格力电器股份有限公司 | Communication method, communication apparatus, storage medium, and electronic device |
| CN115002695A (en) * | 2021-12-30 | 2022-09-02 | 荣耀终端有限公司 | IMS calling method, device and user equipment |
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| CN1893427A (en) * | 2005-07-07 | 2007-01-10 | 华为技术有限公司 | Method for conducting business support ability consultation |
| CN101453696A (en) * | 2007-11-30 | 2009-06-10 | 华为技术有限公司 | Establishment method, system and apparatus for broadcast and multicast bearing |
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| CN1893427A (en) * | 2005-07-07 | 2007-01-10 | 华为技术有限公司 | Method for conducting business support ability consultation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110753021A (en) * | 2018-07-24 | 2020-02-04 | 成都鼎桥通信技术有限公司 | Data transmission method, device and storage medium |
| CN110753021B (en) * | 2018-07-24 | 2022-06-14 | 成都鼎桥通信技术有限公司 | Data transmission method, device and storage medium |
| CN113765910A (en) * | 2021-09-01 | 2021-12-07 | 珠海格力电器股份有限公司 | Communication method, communication apparatus, storage medium, and electronic device |
| CN113765910B (en) * | 2021-09-01 | 2023-06-16 | 珠海格力电器股份有限公司 | Communication method, device, storage medium and electronic equipment |
| CN115002695A (en) * | 2021-12-30 | 2022-09-02 | 荣耀终端有限公司 | IMS calling method, device and user equipment |
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