CN101370310A - User terminal, application server and call establishment method - Google Patents
User terminal, application server and call establishment method Download PDFInfo
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- CN101370310A CN101370310A CNA2008102223032A CN200810222303A CN101370310A CN 101370310 A CN101370310 A CN 101370310A CN A2008102223032 A CNA2008102223032 A CN A2008102223032A CN 200810222303 A CN200810222303 A CN 200810222303A CN 101370310 A CN101370310 A CN 101370310A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
Abstract
The inventive example provides a user terminal, application server and calling establishment method. The user terminal comprises encoder; decoder; first request module, for sending application server first calling request message which carries direction indication of medium stream needed to be established between the user terminal and opposite end user terminal; control module, for controlling working state of the encoder and decoder according to medium stream direction indication; communication module, for sending medium stream to opposite end user terminal or receiving medium stream according to working state of the encoder and the decoder when receiving response message from the application server. The user terminal of the inventive example controls opening and closing of encoder and decoder according to medium stream direction needed to establish when user terminal sends a call to opposite end user terminal, thereby saving resource of encoder and decoder.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of user terminal, application server and call-establishing method.
Background technology
IMS (IP Subsystem Multimedia, IP Multimedia System) is 3GPP (The 3rdGeneration Partnership Project, third generation partner plan) the support IP (InternetProtocol that proposes in, Internet protocol) subsystem of multimedia service, its objective is by the Internet provides multimedia service for the mobile subscriber.Compare with existing C S (Circuit Switched, circuit switching) and PS (PacketSwitch, packet switching) network, the IMS network has following characteristics: (1) IP-based multimedia service and session control core network; (2) common platform of the various fused business of support does not rely on any access technology and access way; (3) adopt SIP (Session Initial Protocol, session initiation protocol) agreement and standardized open interface flexibly, provide possibility for supporting extensive business; (4) by the definition of a plurality of normal structures and develop perfect.Therefore, industry generally believes that IMS is a 3G network developing direction in the future.
Yet, present most user still uses existing C S network, comprise PSTN (PublicSwitched Telephone Network, PSTN) net, ISDN (Integrated ServiceDigital NeTwork, integrated services digital network) net and GSM (Global System for MobileCommunication, global system for mobile communications) net etc., the CS network will with the long-term co-existence of IMS network, therefore, realize the intercommunication of IMS network and CS network, realize that promptly the calling between IMS user terminal and the CS user terminal is very important.
Prior art can realize the call setup between IMS user terminal and the CS user terminal.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
The CS network side only allows to set up two-way media stream, when the CS user terminal makes a call to IP user's terminal, the IMS network side also must be set up two-way media stream, yet in some cases, the CS user terminal only wishes to set up one-way media stream, sets up two-way media stream at the IMS network side this moment and then has waste; In addition, when the Media Stream of IMS user terminal foundation was one-way media stream, the CS user terminal can't know that also encoder, decoder are all worked in the communication process, has the waste of resource.
Summary of the invention
In view of this, the purpose of the embodiment of the invention is to provide a kind of user terminal, application server and call-establishing method, user terminal is when set up calling out end user terminal, the direction of the Media Stream of Jian Liing as required, the unlatching of controlled encoder and decoder or close, thus the resource of encoder saved.
For achieving the above object, the embodiment of the invention provides a kind of user terminal, comprises encoder, also comprises:
First request module is used for sending first call request message to application server, carries described user terminal in described first call request message and need indicate with the direction of the Media Stream that end user terminal is set up;
Control module is used for the direction indication according to described Media Stream, controls the operating state of described encoder and described decoder;
Communication module is used for when receiving the response message of described application server, according to the operating state of described encoder and described decoder, to described end user terminal is sent Media Stream or receiving media stream.
The embodiment of the invention also provides a kind of application server, comprising:
Second receiver module is used to receive the call request message that user terminal sends, and carries described user terminal in the described call request message and need indicate with the direction of the Media Stream that end user terminal is set up;
Sending module is used for sending to the direction indication of described Media Stream described to end user terminal;
Indicating module is used for according to the indication of the direction of described Media Stream, and indication IP Multimedia System media gateway is described user terminal and describedly sets up unidirectional or two-way media stream to end user terminal.
The embodiment of the invention also provides a kind of call-establishing method, comprising:
Send first call request message to application server, carry user terminal in described first call request message and need indicate with the direction of the Media Stream that end user terminal is set up;
According to the direction indication of described Media Stream, the operating state of controlled encoder and decoder;
When receiving the response message of described application server,, end user terminal is sent Media Stream or receiving media stream to described according to the operating state of described encoder and described decoder.
Embodiments of the invention have following beneficial effect:
CS user terminal and IMS user terminal are when calling out, in sending to the call request message of application server, carry the direction of the Media Stream that indication need set up, the direction of the Media Stream of setting up according to described needs, the CS user terminal can controlled encoder and decoder open or close, simultaneously, application server can indicate the IMS network side only to set up unidirectional Media Stream, thereby has saved the resource of encoder or decoder and the media resource of IMS network side.
Description of drawings
Fig. 1 is the structural representation of the user terminal of the embodiment of the invention one;
Fig. 2 is the structural representation of the user terminal of the embodiment of the invention two;
Fig. 3 is the structural representation of the application server of the embodiment of the invention three;
Fig. 4 is the structural representation of the application server of the embodiment of the invention four;
Fig. 5 is the schematic flow sheet of the call-establishing method of the embodiment of the invention five;
Fig. 6 is the schematic flow sheet of the call-establishing method of the embodiment of the invention six;
Fig. 7 is the concrete scene schematic diagram that the CS user terminal of the embodiment of the invention makes a call to the IMS user terminal;
Fig. 8 is another concrete scene schematic diagram that the CS user terminal of the embodiment of the invention makes a call to the IMS user terminal;
Fig. 9 is the concrete scene schematic diagram that the IMS user terminal of the embodiment of the invention makes a call to the CS user terminal;
Figure 10 is another concrete scene schematic diagram that the IMS user terminal of the embodiment of the invention makes a call to the CS user terminal.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
Be illustrated in figure 1 as the structural representation of the user terminal of the embodiment of the invention one, described user terminal comprises:
Above-mentioned user terminal can be for being arranged in the user terminal of CS network, to being arranged in CS network or IMS network end user terminal is made a call, certainly, above-mentioned user terminal also can be for being arranged in the user terminal of IMS network, to being arranged in CS network or IMS network end user terminal is made a call.
The user terminal that provides by the foregoing description, when end user terminal is made a call, the Media Stream direction of Jian Liing as required, controlled encoder and decoder are opened or are closed, thereby save the resource of encoder.
Below be example with the user terminal that is arranged in the CS network to inserting IMS network end user terminal is made a call, the user terminal of the embodiment of the invention is elaborated.
Be illustrated in figure 2 as the structural representation of the user terminal of the embodiment of the invention two, described user terminal is arranged in the CS network, specifically comprises:
Above-mentioned control module 14 further comprises:
The first control submodule 141 when being used for direction at described Media Stream and being designated as described Media Stream for the one-way media stream that only sends, is controlled described encoder 11 and is opened, and controls described decoder 12 to close; And/or
The second control submodule 142 when being used for direction at described Media Stream and being designated as described Media Stream for the one-way media stream that only receives, is controlled described encoder 11 to close, and controls described decoder 12 and opens; And/or
The 3rd control submodule 143 when being used for direction at described Media Stream and being designated as described Media Stream and being two-way media stream, is controlled described encoder 11 and described decoder 12 is opened.
Above-mentioned communication module 15 further comprises:
First sends submodule 151, is used for when described encoder 11 is opened, and sends the Media Stream after the described encoder encodes; And/or
Second sends submodule 152, is used for when the operating state of described encoder 11 is closed, and sends blank form stream; And/or
Receive submodule 153, be used for when described decoder 12 is opened or closed receiving media stream; And/or
Abandon submodule 154, be used for when the operating state of described decoder 12 is closed, the Media Stream that receives being abandoned.
When encoder 11 is opened, first sends the Media Stream of submodule 151 after network side sends coding, when encoder 11 cuts out, because the CS network does not allow to set up one-way media stream, therefore, the second transmission submodule 152 still needs to send blank form stream to the CS network side;
Receive submodule 153 when decoder 12 is opened, receive the Media Stream that network side sends, when the operating state of decoder 12 is closed, because the CS network side does not allow to set up one-way media stream, still send Media Stream to user terminal, receiving submodule 153 still needs to receive the Media Stream that network side sends, and at this moment, can the Media Stream that receive be abandoned by abandoning submodule 154.
Above-mentioned user terminal is arranged in the CS network, need have the ability that inserts the CS network, in addition, described user terminal also need with the IMS network in application server communication, also must have the ability that is used to insert the IMS network, therefore described user terminal is: promptly have the ability that inserts the CS network, have the user terminal of the ability that inserts the IMS network again.
Above-mentioned user terminal is by a specific control channel and an application server communication, described control channel can be realized by polytype signaling protocol, for example, sip message, SMS (Short Message Service, Short Message Service) Facility (instrument) message of the USSD of message, CS network (Unstructured Supplementary Service Data, unstructured supplementary data traffic) message or CS network etc.
When described user terminal adopts control channel that IMS network signaling protocol (as sip message) realizes and application server communication, described user terminal need pass through S-CSCF (Server Call SessionControl Function, service call conversation control function) communicates with application server, S-CSCF is used for user terminal is carried out registration/registration function, carry out the session control service, application server and S-CSCF are by ISC (IMS Centralised Service, the control of IMS centralized traffic) interface communication; When described user terminal adopts control channel that CS network signaling protocol (as USSD message) realizes and application server communication, described user terminal can be directly and application server communicate.
In addition, before transmission or receiving media stream, above-mentioned user terminal also need be set up the media channel of carrying media stream in the CS network, and therefore, above-mentioned user terminal also comprises:
After setting up the carrying media passage, described user terminal then can be by described media channel to end user terminal being sent Media Stream or receiving media stream.
Above-mentioned user terminal all is as a side who makes a call, to inserting IMS network end user terminal is made a call, certainly, described user terminal also can be used as a side of receipt of call, receive described calling to end user terminal, at this moment, described user terminal also comprises:
Same, after the call setup success, above-mentioned control module 14 is according to the direction of the Media Stream that the end user terminal needs are set up, and the unlatching of controlled encoder 11 and decoder 12 or close is in order to avoid waste unnecessary coding or decode operation.
The user terminal that provides by the foregoing description, with insert end user terminal is set up when calling out in the IMS network, the Media Stream direction of Jian Liing as required, controlled encoder and decoder are opened or are closed, thereby the resource of saving encoder.
Be illustrated in figure 3 as the structural representation of the application server of the embodiment of the invention three, described application server comprises:
Sending module 22 is used for sending to the direction indication of described Media Stream described to end user terminal.
Indicating module 23 is used for according to the indication of the direction of described Media Stream, and indication IMS media gateway is described user terminal and describedly sets up unidirectional or two-way media stream to end user terminal.
Described application server is the application server that is arranged in the IMS network.
Described IMS media gateway is used to carry the Media Stream between CS network and the IMS network.
Above-mentioned user terminal can be for being arranged in the user terminal of CS network, to being arranged in CS network or IMS network end user terminal is made a call, certainly, above-mentioned user terminal also can be for being arranged in the user terminal of IMS network, to being arranged in CS network or IMS network end user terminal is made a call.
The application server that provides by the foregoing description, when receiving the calling of CS user terminal or IMS user terminal initiation, the direction indication of the Media Stream that can set up according to the needs that carry in the call request message, indication IMS media gateway is set up unidirectional or two-way media stream, thus the resource that can save the IMS network side.
Be illustrated in figure 4 as the structural representation of the application server of the embodiment of the invention four, described application server comprises:
Sending module 22 is used for sending to the direction indication of described Media Stream described to end user terminal.
Indicating module 23 is used for according to the indication of the direction of described Media Stream, and indication IMS media gateway is described user terminal and describedly sets up unidirectional or two-way media stream to end user terminal.
Described application server is the application server that is arranged in the IMS network.
Described IMS media gateway is used to carry the Media Stream between CS network and the IMS network.
Above-mentioned user terminal can be for being arranged in the user terminal of CS network, to being arranged in CS network or IMS network end user terminal is made a call, certainly, above-mentioned user terminal also can be for being arranged in the user terminal of IMS network, to being arranged in CS network or IMS network end user terminal is made a call.
When described user terminal was the user terminal that inserts in the IMS network, described application server also needed to ask to set up described user terminal and described media channel to the stream of the carrying media between the end user terminal, and therefore, described application server also comprises:
The signaling change server of above-mentioned IMS network can be MGCF (MGW Control Function, MGCF).
When described user terminal is the CS user terminal, application server at first receives the call request message that the CS user terminal sends, carry the direction indication of the Media Stream that needs foundation in the described call request message, application server does not send to the IMS user terminal with described call request message at once, but receiving request that the CS user terminal sends by the signaling change server when setting up the request message of media channel, in conjunction with the indication of setting up two-way media stream of carrying in the described request message, the direction of the Media Stream of determine to need setting up sends to the direction indication of the Media Stream that carries in the call request message to end user terminal.
The application server that provides by the foregoing description, when receiving the calling of CS user terminal or IMS user terminal initiation, the direction indication of the Media Stream that can set up according to the needs that carry in the call request message, indication IMS media gateway is set up unidirectional or two-way media stream, thus the resource that can save the IMS network side.
Be illustrated in figure 5 as the schematic flow sheet of the call-establishing method of the embodiment of the invention five, comprise:
Above-mentioned user terminal can be for being arranged in the user terminal of CS network, to being arranged in CS network or IMS network end user terminal is made a call, certainly, above-mentioned user terminal also can be for being arranged in the user terminal of IMS network, to being arranged in CS network or IMS network end user terminal is made a call.
The method that provides by the foregoing description, when end user terminal is made a call, the Media Stream direction of Jian Liing as required, controlled encoder and decoder are opened or are closed, thereby save the resource of encoder.
Below make a call to the user terminal that inserts the IMS network with the user terminal that is arranged in the CS network and to be example, the call-establishing method of the embodiment of the invention is elaborated.
Be illustrated in figure 6 as the schematic flow sheet of the call-establishing method of the embodiment of the invention six, comprise:
For convenience of description, above-mentioned steps 64 is placed after the step 63, in the implementation of reality, step 64 can be arranged in after arbitrary step of step 61～step 63, or finishes synchronously with the arbitrary step in step 61～step 63.
The method of above-mentioned steps 64 is specially:
When the direction of described Media Stream is designated as described Media Stream for the one-way media stream that only sends, control described encoder and open, control described decoder to close; Or
When the direction of described Media Stream is designated as described Media Stream for the one-way media stream that only receives, control described encoder to close, control described decoder and open; Or
When the direction of described Media Stream is designated as described Media Stream and is two-way media stream, control described encoder and described decoder and open.
The method of above-mentioned steps 65 is specially:
When described encoder is opened,, send the Media Stream after the described encoder encodes by described media channel; Or
When described encoder cuts out,, send blank form stream by described media channel; Or
By described media channel, receiving media stream; Or
When described decoder is closed, the Media Stream that receives is abandoned.
Above-mentioned first call request message can be sip message, USSD message, SMS message or facility message.
Said method all is that user terminal in the CS network is as the initiator who calls out, end user terminal is made a call in the IMS network, certainly, user terminal in the CS network also can be used as the recipient of calling, receive the calling in the IMS network to end user terminal, during as the recipient that calls out, described method also comprises:
Receive second call request message that described application server sends, carry the direction indication that need set up Media Stream with described user terminal to end user terminal in the IMS network in described second call request message;
According to the direction indication of described Media Stream, the operating state of controlled encoder and decoding.
Described second call request message is a conversation initiating protocol message.
The method that provides by the foregoing description, in the IMS network to end user terminal make a call or receive in the IMS network to the calling of end user terminal the time, equal directions of the Media Stream that can set up as required, controlled encoder or decoder are opened or are closed, and can save the resource of encoder or decoder.
Below with concrete application scenarios above-mentioned call-establishing method is elaborated.
The CS user terminal that is illustrated in figure 7 as the embodiment of the invention may further comprise the steps to the concrete scene schematic diagram that the IMS user terminal makes a call:
Step 71, CS UE (user terminal) sends the INVITE of asking to set up with IMS UE Media Stream by S-CSCF to application server, carries " recvonly (only receiving) " indication of the direction of indication Media Stream in the described INVITE.
CS UE is for inserting the user terminal in the CS network, IMS UE is for inserting the user terminal of IMS network, described INVITE is first call request message described in the foregoing description, control channel and application server communication that described CS UE realizes by sip message.
Step 72, CS UE sends SETUP message to MSC server, and the media channel of carrying media stream is set up in request.
In the present embodiment, MSC server and MGCF combine and form the signaling change server, and certainly, MSC server also can be independent network entity.
Step 73, MGCF gives INVITE with the SETUP message conversion, and sends to application server, carries " sendrecv (transmitting-receiving bidirectional) " indication in this INVITE, and two-way media stream is set up in request.
Because the CS network can only be set up two-way media stream, therefore, MGCF still indicated in the message that application server sends and set up two-way media stream this moment.
Step 74, application server is in conjunction with above-mentioned two INVITE that receive, definite direction that needs the Media Stream of foundation, generate a new INVITE, and send to IMS UE by S-CSCF, and carrying " recvonly (only receiving) " indication in the described new INVITE, indication CS UE is receiving media stream only, be the indication of carrying in the INVITE that only sends according to CS UE of application server, determine the direction of Media Stream.
Step 75 after IMS UE receives INVITE, sends the 200OK acknowledge message by S-CSCF to application server.
Step 76, application server sends 200 OK acknowledge messages to MGCF by S-CSCF, carry " sendonly (only sending) " indication in the message, indication IMS UE only sends Media Stream, at this moment, MGCF control IMS-MGW sets up the one-way media stream that only receives, and promptly only receives the Media Stream that IMS UE sends.
Step 77, MSC server sends CONNECT message to UE, indication IMS UE call accepted request.
Step 78, application server sends 200 OK acknowledge messages by S-CSCF to CS UE, and indicating call is set up successfully.
At this moment, CS UE controlled encoder is closed, and the control decoder is opened, and only the Media Stream that receives is decoded, and send blank CS network media stream, and the IMS network side only uses the transmission media stream resources.
Above-mentioned CS UE communicates by the control channel and the application server of sip message expansion, as mentioned above, also can communicate by the control channel and the application server of other extension of message, the concrete scene schematic diagram that Fig. 8 communicates for the control channel and the application server of CS UE by the USSD extension of message, the specific implementation method is similar to the above embodiments, different is, at control channel and the application server when communicating of CS UE by the USSD extension of message, because USSD is the signaling of CS network, therefore, CS UE can be directly and application server communicate, no longer need by S-CSCF, the specific implementation process is not being described in detail.
Above-mentioned two specific embodiments all are that the CS user terminal is as the initiator who calls out, the method that makes a call to the IMS user terminal, with next with the IMS user terminal as the initiator who calls out, making a call to the CS user terminal is example, and the call-establishing method of the embodiment of the invention is elaborated.
The IMS user terminal that is illustrated in figure 9 as the embodiment of the invention may further comprise the steps to the concrete scene schematic diagram that the CS user terminal makes a call:
Step 91, IMS UE sends INVITE by S-CSCF to application server, carry " sendonly (only sending) " indication in the described INVITE, the Media Stream that indication IMS UE need set up is the one-way media stream of only sending direction, and described INVITE is second call request message in the foregoing description.
Step 92, application server to sending to CS UE, are carried INVITE " sendonly (only sending) " indication in the described INVITE.
Step 93, application server sends INVITE to MGCF, and the media channel of carrying media stream is set up in request, carries " sendonly (only sending) " indication in the described INVITE.
Step 94, MSC server sends SETUP message to CS UE.
Step 95, CS UE returns CONNECT message, indication user call accepted.
Step 96, MGCF is that 200 OK determine message with the CONNECT message conversion, and sends to application server
Step 97, CS UE returns 200 OK acknowledge messages to application server.
Step 98, application server send 200 OK acknowledge messages to IMS UE, and indicating call is set up successfully.
At this moment, CS UE controlled encoder is closed, and the control decoder is opened, and only carry out the decoding of Media Stream, and the IMS network side only uses the transmission media stream resources.
Above-mentioned application server communicates by the control channel and the CS UE of sip message expansion, also can communicate by the control channel and the CS UE of other extension of message, the concrete scene schematic diagram that Figure 10 communicates for the control channel and the CS UE of application server by the USSD extension of message, the specific implementation method is similar to the above embodiments, different is, at control channel and the CS UE when communicating of application server by the USSD extension of message, because USSD is the signaling of CS network, therefore, application server can be directly and CS UE communicate, no longer need by S-CSCF, the specific implementation process is not being described in detail.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, this program is when carrying out, comprise step, described storage medium as above-mentioned method embodiment.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (16)
1. a user terminal comprises encoder, it is characterized in that, also comprises:
First request module is used for sending first call request message to application server, carries described user terminal in described first call request message and need indicate with the direction of the Media Stream that end user terminal is set up;
Control module is used for the direction indication according to described Media Stream, controls the operating state of described encoder and described decoder;
Communication module is used for when receiving the response message of described application server, according to the operating state of described encoder and described decoder, to described end user terminal is sent Media Stream or receiving media stream.
2. user terminal according to claim 1 is characterized in that, described control module comprises:
The first control submodule when being used for direction at described Media Stream and being designated as described Media Stream for the one-way media stream that only sends, is controlled described encoder and is opened, and controls described decoder to close; And/or
The second control submodule when being used for direction at described Media Stream and being designated as described Media Stream for the one-way media stream that only receives, is controlled described encoder to close, and controls described decoder and opens; And/or
The 3rd control submodule when being used for direction at described Media Stream and being designated as described Media Stream and being two-way media stream, is controlled described encoder and described decoder and is opened.
3. user terminal according to claim 2 is characterized in that, described communication module comprises:
First sends submodule, is used for when described encoder is opened, and sends the Media Stream after the described encoder encodes; And/or
Second sends submodule, is used for when described encoder cuts out, and sends blank form stream; And/or
Receive submodule, be used for when described decoder is opened or closed receiving media stream.
4. user terminal according to claim 3 is characterized in that, described communication module also comprises:
Abandon submodule, be used for when described decoder is closed, the Media Stream that receives being abandoned.
5. user terminal according to claim 1 is characterized in that, described first call request message is conversation initiating protocol message, unstructured supplementary data traffic message, short message service message or instrument message.
6. user terminal according to claim 1 is characterized in that, also comprises:
First receiver module is used to receive second call request message that described application server sends, and carries the direction indication of the Media Stream that need set up with described user terminal end user terminal in described second call request message.
7. user terminal according to claim 6 is characterized in that, described second call request message is a conversation initiating protocol message.
8. an application server is characterized in that, comprising:
Second receiver module is used to receive the call request message that user terminal sends, and carries described user terminal in the described call request message and need indicate with the direction of the Media Stream that end user terminal is set up;
Sending module is used for sending to the direction indication of described Media Stream described to end user terminal;
Indicating module is used for according to the indication of the direction of described Media Stream, and indication IP Multimedia System media gateway is described user terminal and describedly sets up unidirectional or two-way media stream to end user terminal.
9. application server according to claim 8 is characterized in that, also comprises:
Request module is used for when receiving described call request message, sends the foundation request of the media channel of setting up the described Media Stream of carrying to the signaling change server of IP Multimedia System network.
10. a call-establishing method is characterized in that, comprising:
Send first call request message to application server, carry user terminal in described first call request message and need indicate with the direction of the Media Stream that end user terminal is set up;
According to the direction indication of described Media Stream, the operating state of controlled encoder and decoder;
When receiving the response message of described application server,, end user terminal is sent Media Stream or receiving media stream to described according to the operating state of described encoder and described decoder.
11. call-establishing method according to claim 10 is characterized in that, described direction indication according to described Media Stream, and the method for controlled encoder and decoder operating state is specially:
When the direction of described Media Stream is designated as described Media Stream for the one-way media stream that only sends, control described encoder and open, control described decoder to close; Or
When the direction of described Media Stream is designated as described Media Stream for the one-way media stream that only receives, control described encoder to close, control described decoder and open; Or
When the direction of described Media Stream is designated as described Media Stream and is two-way media stream, control described encoder and described decoder and open.
12. call-establishing method according to claim 11 is characterized in that, described operating state according to described encoder and described decoder is specially to described method to end user terminal transmission Media Stream or receiving media stream:
When described encoder is opened, send the Media Stream after the described encoder encodes; Or
When described encoder cuts out, send blank form stream; Or
When described decoder is opened or is closed, receiving media stream.
13. call-establishing method according to claim 12 is characterized in that, and is described when described decoder is opened or closed, and also comprises after the receiving media stream:
When described decoder is closed, the Media Stream that receives is abandoned.
14. call-establishing method according to claim 10 is characterized in that, described first call request message is conversation initiating protocol message, unstructured supplementary data traffic message, short message service message or instrument message.
15. call-establishing method according to claim 10 is characterized in that, also comprises:
Receive second call request message that described application server sends, carry the direction indication that to set up Media Stream to end user terminal with described user terminal in described second call request message.
16. call-establishing method according to claim 15 is characterized in that, described second call request message is a conversation initiating protocol message.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102223032A CN101370310B (en) | 2008-09-16 | 2008-09-16 | User terminal, application server and call establishment method |
| PCT/CN2009/073172 WO2010031284A1 (en) | 2008-09-16 | 2009-08-10 | User terminal, application server, and method for establishing call |
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| CN2008102223032A CN101370310B (en) | 2008-09-16 | 2008-09-16 | User terminal, application server and call establishment method |
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| WO2010031284A1 (en) * | 2008-09-16 | 2010-03-25 | 华为终端有限公司 | User terminal, application server, and method for establishing call |
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| CN114980263B (en) * | 2022-07-13 | 2022-11-18 | 武汉慧联无限科技有限公司 | Method and device for controlling terminal, processing equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119299A (en) * | 2006-08-02 | 2008-02-06 | 华为技术有限公司 | Method for conducting media stream, conduction detecting method and system |
| CN100461778C (en) * | 2006-08-17 | 2009-02-11 | 华为技术有限公司 | Method and system for implementing short message business bifurcation transmission in multimedia subsystem |
| CN101222477B (en) * | 2007-01-10 | 2011-08-10 | 华为技术有限公司 | Method, equipment and system for initiator and receiver cancelling call |
| CN101370310B (en) * | 2008-09-16 | 2011-09-14 | 华为终端有限公司 | User terminal, application server and call establishment method |
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2008
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2009
- 2009-08-10 WO PCT/CN2009/073172 patent/WO2010031284A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010031284A1 (en) * | 2008-09-16 | 2010-03-25 | 华为终端有限公司 | User terminal, application server, and method for establishing call |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010031284A1 (en) | 2010-03-25 |
| CN101370310B (en) | 2011-09-14 |
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