CN102811336A - Method and apparatus for capability negotiation of multimedia - Google Patents
Method and apparatus for capability negotiation of multimedia Download PDFInfo
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- CN102811336A CN102811336A CN2011101497200A CN201110149720A CN102811336A CN 102811336 A CN102811336 A CN 102811336A CN 2011101497200 A CN2011101497200 A CN 2011101497200A CN 201110149720 A CN201110149720 A CN 201110149720A CN 102811336 A CN102811336 A CN 102811336A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/24—Negotiation of communication capabilities
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Abstract
The invention provides a method and an apparatus for capability negotiation of a multimedia, belonging to the communication field. The method for capability negotiation of the multimedia is applied to an MONA-MPC (media oriented negotiation acceleration-Media Preconfigured Channels) system and comprises the following steps that: a first terminal creates a first priority PM message according to the self media capacity; the first terminal sends the first PM message to a second terminal and receives a second PM message returned by the second terminal, the second PM message includes the media capacity which is determined by the second terminal according to the priority of the media capacity of the first terminal and used for the communication between the second terminal and the first terminal; and the first terminal determines a media channel for the connection with the second terminal according to the second PM message. According to the method and the apparatus for capability negotiation of the multimedia, the generality of an MPC can be improved.
Description
Technical field
The present invention relates to the communications field, be meant a kind of multimedia capabilities machinery of consultation and device especially.
Background technology
Video telephone is a kind of multimedia communications system that integrates Voice & Video, makes people no longer be confined to common voice call service, and its, but also the dream of seeing its people had not only been heard in real realization.Along with the arriving in 3G epoch, video telephone will be accepted by increasing people.
The 3G video calling overwhelming majority is based on the video telephony standards of 3G-H.324M; Normal calling procedure H.245 needs more than 5 to 8 seconds; The user is beyond affordability, for this reason, the H.245 agreement MONA of process (media oriented negotiation acceleration occurred quickening; Negotiation towards medium is quickened), can shorten call set-up time H.245 within one second.
Three kinds of technology are arranged, i.e. SPC (Signaling Preconfigured Channel, the pre-configured passage of signaling), MPC (Media Preconfigured Channels in the MONA standard; The pre-configured passage of medium), ACP (Accelerated Connection Procedure; Quicken connection procedure), wherein the MPC negotiation speed is the fastest, but existing MPC technology has following shortcoming: can't presentation medium ability attribute; Have under the situation of multiple media capability like this; MPC can't represent the priority of multiple media capability, so just possibly cause consulting failure, has reduced the versatility of MPC.
Summary of the invention
The technical problem that the present invention will solve provides a kind of multimedia capabilities machinery of consultation and device, can improve the versatility of MPC.
For solving the problems of the technologies described above, embodiments of the invention provide technical scheme following:
On the one hand, a kind of multimedia capabilities machinery of consultation is provided, is applied in the pre-configured passage MONA-MPC of the negotiation acceleration-medium system of medium, comprise:
The first priority P M message is constructed according to the priority of self media capability in said first terminal;
Said first terminal is sent to second terminal with a said PM message; And receiving the 2nd PM message that said second terminal is returned, said the 2nd PM message comprises that said second terminal confirms that according to the priority of the media capability at said first terminal self and said first terminal communicate used media capability;
Said first terminal is according to the definite media channel that communicates with said second terminal of said the 2nd PM message.
Wherein, the priority that a said PM message is carried the media capability at said first terminal, the priority of said media capability comprise the priority and the priority of sending media capability of the receiving media ability at said first terminal.
Wherein, said the 2nd PM message comprises the transmission media capability and the receiving media ability at said second terminal, and said first terminal confirms that according to said the 2nd PM message the media channel that communicates with said second terminal comprises:
Whether said first terminal judges self possesses the transmission media capability consistent with the receiving media ability at said second terminal, and whether possesses the receiving media ability consistent with the transmission media capability at said second terminal;
When said first terminal possesses the transmission media capability consistent with the receiving media ability at said second terminal; When possessing the receiving media ability consistent with the transmission media capability at said second terminal, said first terminal communicates through pre-configured passage of medium and said second terminal.
The embodiment of the invention also provides a kind of multimedia capabilities machinery of consultation, is applied in the pre-configured passage MONA-MPC of the negotiation acceleration-medium system of medium, comprise:
Second terminal receives the first priority P M message that send at first terminal, carries the priority of the media capability at said first terminal in the said PM message;
Said second terminal confirms that according to the priority of the media capability at said first terminal self and said first terminal communicate used media capability;
Said second terminal is sent to said first terminal with determined media capability through the 2nd PM message, so that the media channel that said first terminal is confirmed and said second terminal communicates.
Wherein, The priority of the media capability at said first terminal comprises the priority and the priority of sending media capability of the receiving media ability at first terminal, and said second terminal confirms that according to the priority of the media capability at said first terminal self and said first terminal communicate used media capability and comprise:
Said second terminal confirms that according to the priority of the receiving media ability at said first terminal self and said first terminal communicate used transmission media capability;
Said second terminal confirms that according to the priority of the transmission media capability at said first terminal self and said first terminal communicate used receiving media ability.
The embodiment of the invention also provides a kind of multimedia capabilities consulting device, is applied in the pre-configured passage MONA-MPC of the negotiation acceleration-medium system of medium, comprise:
First constructing module is used for constructing the first priority P M message according to the priority of the media capability at first terminal;
First interface module; Be used for a said PM message is sent to second terminal; And receiving the 2nd PM message that said second terminal is returned, said the 2nd PM message comprises that said second terminal communicates used media capability according to the priority of the media capability at said first terminal determined self and said first terminal;
First processing module is used for confirming the media channel that said first terminal and said second terminal communicate according to said the 2nd PM message.
Wherein, Said first constructing module specifically is used for the priority of the media capability at said first terminal is filled into a said PM message, and the priority of said media capability comprises the priority and the priority of sending media capability of the receiving media ability at said first terminal.
Wherein, said the 2nd PM message comprises the transmission media capability and the receiving media ability at said second terminal, and said first processing module comprises:
Judging unit is used to judge whether said first terminal possesses the transmission media capability consistent with the receiving media ability at said second terminal, and whether possesses the receiving media ability consistent with the transmission media capability at said second terminal;
Processing unit; Be used for possessing the transmission media capability consistent with the receiving media ability at said second terminal when said first terminal; When possessing the receiving media ability consistent, confirm that said first terminal communicates through pre-configured passage of medium and said second terminal with the transmission media capability at said second terminal.
The embodiment of the invention also provides a kind of multimedia capabilities consulting device, is applied in the pre-configured passage MONA-MPC of the negotiation acceleration-medium system of medium, comprise:
Second interface module is used to receive the first priority P M message that send at first terminal, carries the priority of the media capability at said first terminal in the said PM message;
Second processing module is used for confirming that according to the priority of the media capability at said first terminal second terminal and said first terminal communicate used media capability;
Second constructing module is used for constructing the 2nd PM message according to the media capability at determined said second terminal;
Said second interface module also is used to send said the 2nd PM message to said first terminal, so that the media channel that said first terminal is confirmed and said second terminal communicates.
Wherein, the priority of the media capability at said first terminal comprises the priority and the priority of sending media capability of the receiving media ability at first terminal,
Said second processing module specifically is used for confirming that according to the priority of the receiving media ability at said first terminal said second terminal and said first terminal communicate used transmission media capability, confirms that according to the priority of the transmission media capability at said first terminal said second terminal and said first terminal communicate used receiving media ability.
Embodiments of the invention have following beneficial effect:
In the such scheme; First terminal is sent to the priority that carries the media capability at first terminal in the PM message at second terminal; Such second terminal just can confirm that self and first terminal communicate used media capability according to the priority of the media capability at first terminal, thereby the both sides that guarantee communication can adopt preferentially the higher media capability of priority to hold consultation after receiving PM message; Increase the negotiation success rate, improved the versatility of MPC.
Description of drawings
Fig. 1 is the schematic flow sheet of the multimedia capabilities machinery of consultation of the embodiment of the invention;
Fig. 2 is another schematic flow sheet of the multimedia capabilities machinery of consultation of the embodiment of the invention;
Fig. 3 is the structural representation of the multimedia capabilities consulting device of the embodiment of the invention;
Fig. 4 is another structural representation of the multimedia capabilities consulting device of the embodiment of the invention;
Fig. 5 sets up schematic flow sheet for MONA-MPC session of the prior art;
Fig. 6 sets up schematic flow sheet for the session of the multimedia capabilities machinery of consultation of the embodiment of the invention.
Embodiment
For technical problem, technical scheme and advantage that embodiments of the invention will be solved is clearer, will combine accompanying drawing and specific embodiment to be described in detail below.
Embodiments of the invention in the prior art because MPC can't represent the priority of multiple media capability, cause consulting failure, reduce the problem of the versatility of MPC, a kind of multimedia capabilities machinery of consultation and device are provided, can improve the versatility of MPC.
Fig. 1 is the schematic flow sheet of the multimedia capabilities machinery of consultation of the embodiment of the invention; As shown in Figure 1; Present embodiment is applied to MONA-MPC (media oriented negotiation acceleration-Media Preconfigured Channels; The pre-configured passage of negotiation acceleration-medium towards medium) in the system, comprising:
Step 101: the first priority P M message is constructed according to the priority of self media capability in first terminal;
Step 102: first terminal is sent to second terminal with a PM message; And receiving the 2nd PM message that second terminal is returned, the 2nd PM message comprises that second terminal confirms that according to the priority of the media capability at first terminal self and first terminal communicate used media capability;
Step 103: first terminal is according to the definite media channel that communicates with second terminal of the 2nd PM message.
The multimedia capabilities machinery of consultation of the embodiment of the invention; First terminal is sent to the priority that carries the media capability at first terminal in the PM message at second terminal; Such second terminal is after receiving PM message; Just can confirm that self and first terminal communicate used media capability according to the priority of the media capability at first terminal; Thereby the both sides that guarantee communication can preferentially adopt the higher media capability of priority to hold consultation, and have increased the negotiation success rate, have improved the versatility of MPC.
Fig. 2 is another schematic flow sheet of the multimedia capabilities machinery of consultation of the embodiment of the invention, and is as shown in Figure 2, and present embodiment is applied to comprise in the MONA-MPC system:
Step 201: second terminal receives the first priority P M message that send at first terminal, carries the priority of the media capability at first terminal in the PM message;
Step 202: second terminal confirms that according to the priority of the media capability at first terminal self and first terminal communicate used media capability;
Step 203: second terminal is sent to first terminal with determined media capability through the 2nd PM message, so that the media channel that first terminal is confirmed and second terminal communicates.
The multimedia capabilities machinery of consultation of the embodiment of the invention; First terminal is sent to the priority that carries the media capability at first terminal in the PM message at second terminal; Such second terminal is after receiving PM message; Just can confirm that self and first terminal communicate used media capability according to the priority of the media capability at first terminal; Thereby the both sides that guarantee communication can preferentially adopt the higher media capability of priority to hold consultation, and have increased the negotiation success rate, have improved the versatility of MPC.
Fig. 3 is the structural representation of the multimedia capabilities consulting device of the embodiment of the invention, and is as shown in Figure 3, and present embodiment is applied to comprise in the MONA-MPC system:
First constructing module 30 is used for constructing the first priority P M message according to the priority of the media capability at first terminal;
First interface module 31; Be used for a PM message is sent to second terminal; And receiving the 2nd PM message that second terminal is returned, the 2nd PM message comprises that second terminal communicates used media capability according to the priority of the media capability at first terminal determined self and first terminal;
First processing module 32 is used for confirming the media channel that first terminal and second terminal communicate according to the 2nd PM message.
Wherein, first constructing module 30 specifically is used for the priority of the media capability at first terminal is filled into a PM message, and the priority of media capability comprises the priority and the priority of sending media capability of the receiving media ability at first terminal.
Wherein, the 2nd PM message comprises the transmission media capability and the receiving media ability at second terminal, and first processing module 32 comprises:
Judging unit is used to judge whether first terminal possesses the transmission media capability consistent with the receiving media ability at second terminal, and whether possesses the receiving media ability consistent with the transmission media capability at second terminal;
Processing unit; Be used for possessing the transmission media capability consistent with the receiving media ability at second terminal when first terminal; When possessing the receiving media ability consistent, confirm that first terminal communicates through the pre-configured passage of medium and second terminal with the transmission media capability at second terminal.
The multimedia capabilities consulting device of the embodiment of the invention; First terminal is sent to the priority that carries the media capability at first terminal in the PM message at second terminal; Such second terminal is after receiving PM message; Just can confirm that self and first terminal communicate used media capability according to the priority of the media capability at first terminal; Thereby the both sides that guarantee communication can preferentially adopt the higher media capability of priority to hold consultation, and have increased the negotiation success rate, have improved the versatility of MPC.
Fig. 4 is another structural representation of the multimedia capabilities consulting device of the embodiment of the invention, and is as shown in Figure 4, and present embodiment is applied to comprise in the MONA-MPC system:
Wherein, the priority of the media capability at first terminal comprises the priority and the priority of sending media capability of the receiving media ability at first terminal,
The multimedia capabilities consulting device of the embodiment of the invention; First terminal is sent to the priority that carries the media capability at first terminal in the PM message at second terminal; Such second terminal is after receiving PM message; Just can confirm that self and first terminal communicate used media capability according to the priority of the media capability at first terminal; Thereby the both sides that guarantee communication can preferentially adopt the higher media capability of priority to hold consultation, and have increased the negotiation success rate, have improved the versatility of MPC.
Below in conjunction with accompanying drawing, multimedia capabilities machinery of consultation of the present invention is explained further details.
Shown in Figure 5ly set up schematic flow sheet, comprising for MONA-MPC session of the prior art:
After CS (Client/Server, client/server) link establishment, transmit leg is filled and is sent the PM initial message and gives the recipient;
When transmit leg possessed multiple media capability, the recipient can be known the media capability that transmit leg is supported according to media data, but can not know the priority of each media capability like this;
For the recipient; The PDU of the preconfigured media passage that parsing receives (Protocol Data Unit, pdu), whether media data wherein meets the MPC-RX of self; If data do not satisfy the MPC-RX of self among the PDU that receives, then abandon all data.If satisfy then decode and show.
For transmit leg, can be after receiving recipient's PM message judge according to the other side's MPC-RX whether the pre-configured passage of setting up before self is correct, if mistake then stop to send, then would use suitable media channel to send.
When the terminal possesses multiple media capability; Flow process is set up in MONA-MPC session of the prior art can not presentation medium ability attribute; When possessing multiple media capability at the terminal like this; The priority that can't represent multiple media capability so just can not guarantee that the both sides terminal through the highest media capability foundation communication of priority, possibly cause the failure of media negotiation.
Shown in Figure 6ly set up schematic flow sheet for the session of multimedia capabilities machinery of consultation of the present invention; In the present embodiment; And do not require terminal called also can be in PM message presentation medium ability attribute; But for both sides can both improve the MPC versatility, terminal called also can be in PM message presentation medium ability attribute, can in PM message, presentation medium ability attribute be that example describes multimedia capabilities machinery of consultation of the present invention also with terminal called below:
After the CS link establishment, calling terminal founds the media priority table, confirms the priority of codec symmetric properties table and self multiple media capability.Receiving media ability such as the calling terminal support comprises A and B, and wherein the priority of A is the highest, and the priority of B is taken second place; The transmission media capability of calling terminal support comprises A, B and C, and wherein the priority of A is the highest, and the priority of C is taken second place, and the priority of B is minimum;
Step 602 if calling terminal support and the preferential MPC that uses then construct PM message, is wherein added media capability and corresponding priority level, codec attributes in the Payload of PM message field;
Particularly, can be in PM message reserved place or define new field and represent above-mentioned information, can to indicate what represent in these Payload fields be media data or media capability association attributes with the most significant high four of first byte among the Payload;
The media capability of representing in the PM message of terminal called according to the definite response of priority of the media capability of media capability of self supporting and calling terminal.Comprise following several kinds of situation:
One, the codec of calling terminal is not symmetrical, and can satisfy the transmission media capability of (1) terminal called support and the receiving media ability of calling terminal support simultaneously has common factor and the receiving media ability of (2) terminal called support and the transmission media capability of calling terminal support that common factor is arranged;
The receiving media ability of knowing the calling terminal support such as terminal called has A and B; Wherein the priority of A is the highest; The priority of B is taken second place, and the transmission media capability of terminal called support comprises A and B, then the transmission media capability A of terminal called expression self in the PM message of response; If terminal called knows that the transmission media capability of calling terminal support has A, B and C; Wherein the priority of A is the highest; The priority of C is taken second place; The priority of B is minimum, and the receiving media ability of terminal called support includes only B and C, then the receiving media ability C of terminal called expression self in the PM message of response;
Two, the codec of calling terminal is symmetrical, and can satisfy the transmission media capability of (1) terminal called support and the receiving media ability of calling terminal support simultaneously has common factor and the receiving media ability of (2) terminal called support and the transmission media capability of calling terminal support that common factor is arranged;
Know that such as terminal called the codec of calling terminal is symmetrical; The receiving media ability of supporting has A and B; Wherein the priority of A is the highest; The priority of B is taken second place, and the transmission media capability of terminal called support has only B, then the transmission media capability B of terminal called expression self in the PM message of response; Because the codec of calling terminal is symmetrical; Therefore the transmission media capability of calling terminal support also is A and B; Wherein the priority of A is the highest; The priority of B is taken second place, and the receiving media ability of terminal called support includes only B, then the receiving media ability B of terminal called expression self in the PM message of response;
Three, can not satisfy the transmission media capability of (1) terminal called support and the receiving media ability of calling terminal support simultaneously has common factor and the receiving media ability of (2) terminal called support and the transmission media capability of calling terminal support that common factor is arranged;
The receiving media ability of knowing the calling terminal support such as terminal called has A and B; Wherein the priority of A is the highest; The priority of B is taken second place, and the transmission media capability of terminal called support has only C, then the transmission media capability C of terminal called expression self in the PM message of response; If terminal called knows that the transmission media capability of calling terminal support comprises A, B and C; Wherein the priority of A is the highest; The priority of C is taken second place; The priority of B is minimum, and the receiving media ability of terminal called support includes only D, then the receiving media ability D of terminal called expression self in the PM message of response;
Step 605: calling terminal receives the PM message of terminal called response, confirms the media channel that communicates with terminal called.
If comprise the receiving media ability that terminal called returns in the transmission media capability of calling terminal; And comprise the transmission media capability that terminal called returns in the receiving media ability of calling terminal simultaneously; Then explain between calling terminal and the terminal called and can carry out normal talking through the MPC that sets up before, then calling terminal and terminal called are consulted successfully.
If do not comprise the receiving media ability that terminal called returns in the transmission media capability of calling terminal; Or do not comprise the transmission media capability that terminal called returns in the receiving media ability of calling terminal; Explain that then calling terminal and terminal called can not carry out normal talking through the MPC that sets up before, calling terminal need be reselected other suitable media channels and communicate.
When terminal called is merely able in PM message the presentation medium data; Calling terminal is in receiving the PM message that terminal called returns; Judge whether self can resolve audio, video data wherein; If can resolve, then explain between calling terminal and the terminal called and can carry out normal talking through the MPC that sets up before.If can not resolve, calling terminal abandons this PM message, reselects other suitable media channels and communicates.
Multimedia negotiation method of the present invention; Through the priority of in calling terminal PM message, carrying multiple media capability, make terminal called in the media capability of self supporting, can select high media capability of calling terminal medium priority and calling terminal to hold consultation; And if the codec of calling terminal is symmetrical, calling terminal PM message also can be represented multiple media capability, has enlarged the scope of terminal called selection media capability, has improved the successful property of media negotiation, has enlarged the versatility of MPC.
Many functional parts described in this specification all are called as module, so that stress the independence of its implementation more especially.
In the embodiment of the invention, module can realize with software, so that carried out by various types of processors.For instance, the executable code module of a sign can comprise the one or more physics or the logical block of computer instruction, and for instance, it can be built as object, process or function.However, the executable code of institute's identification module need not to be physically located in together, but can comprise the different instruction on being stored in the coordination not, when combining on these command logics, and its composition module and realize the regulation purpose of this module.
In fact, executable code module can be individual instructions or many instructions, and even can be distributed on a plurality of different code segments, be distributed in the middle of the distinct program, and cross over a plurality of memory devices and distribute.Likewise, operating data can be identified in module, and can realize and be organized in the data structure of any suitable type according to any suitable form.Said operating data can be used as the individual data collection and is collected, and perhaps can be distributed on the diverse location (to be included on the different storage device), and can only be present on system or the network as electronic signal at least in part.
When module can utilize software to realize; Consider the level of existing hardware technology; So can be with the module of software realization; Do not considering under the condition of cost that those skilled in the art can build the corresponding hardware circuit and realize corresponding function, said hardware circuit comprises conventional ultra-large integrated (VLSI) circuit or gate array and the existing semiconductor such as logic chip, transistor or other discrete element.Module can also be used programmable hardware device, such as realizations such as field programmable gate array, programmable logic array, programmable logic devices.
In each method embodiment of the present invention; The sequence number of said each step can not be used to limit the sequencing of each step; For those of ordinary skills, under the prerequisite of not paying creative work, the priority of each step is changed also within protection scope of the present invention.
The above 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 principle according to the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. multimedia capabilities machinery of consultation is applied in the pre-configured passage MONA-MPC of the negotiation acceleration-medium system of medium, it is characterized in that, comprising:
The first priority P M message is constructed according to the priority of self media capability in said first terminal;
Said first terminal is sent to second terminal with a said PM message; And receiving the 2nd PM message that said second terminal is returned, said the 2nd PM message comprises that said second terminal confirms that according to the priority of the media capability at said first terminal self and said first terminal communicate used media capability;
Said first terminal is according to the definite media channel that communicates with said second terminal of said the 2nd PM message.
2. multimedia capabilities machinery of consultation according to claim 1 is characterized in that,
The priority that a said PM message is carried the media capability at said first terminal, the priority of said media capability comprise the priority and the priority of sending media capability of the receiving media ability at said first terminal.
3. multimedia capabilities machinery of consultation according to claim 2; It is characterized in that; Said the 2nd PM message comprises the transmission media capability and the receiving media ability at said second terminal, and said first terminal confirms that according to said the 2nd PM message the media channel that communicates with said second terminal comprises:
Whether said first terminal judges self possesses the transmission media capability consistent with the receiving media ability at said second terminal, and whether possesses the receiving media ability consistent with the transmission media capability at said second terminal;
When said first terminal possesses the transmission media capability consistent with the receiving media ability at said second terminal; When possessing the receiving media ability consistent with the transmission media capability at said second terminal, said first terminal communicates through pre-configured passage of medium and said second terminal.
4. multimedia capabilities machinery of consultation is applied in the pre-configured passage MONA-MPC of the negotiation acceleration-medium system of medium, it is characterized in that, comprising:
Second terminal receives the first priority P M message that send at first terminal, carries the priority of the media capability at said first terminal in the said PM message;
Said second terminal confirms that according to the priority of the media capability at said first terminal self and said first terminal communicate used media capability;
Said second terminal is sent to said first terminal with determined media capability through the 2nd PM message, so that the media channel that said first terminal is confirmed and said second terminal communicates.
5. multimedia capabilities machinery of consultation according to claim 4; It is characterized in that; The priority of the media capability at said first terminal comprises the priority and the priority of sending media capability of the receiving media ability at first terminal, and said second terminal confirms that according to the priority of the media capability at said first terminal self and said first terminal communicate used media capability and comprise:
Said second terminal confirms that according to the priority of the receiving media ability at said first terminal self and said first terminal communicate used transmission media capability;
Said second terminal confirms that according to the priority of the transmission media capability at said first terminal self and said first terminal communicate used receiving media ability.
6. a multimedia capabilities consulting device is applied in the pre-configured passage MONA-MPC of the negotiation acceleration-medium system of medium, it is characterized in that, comprising:
First constructing module is used for constructing the first priority P M message according to the priority of the media capability at first terminal;
First interface module; Be used for a said PM message is sent to second terminal; And receiving the 2nd PM message that said second terminal is returned, said the 2nd PM message comprises that said second terminal communicates used media capability according to the priority of the media capability at said first terminal determined self and said first terminal;
First processing module is used for confirming the media channel that said first terminal and said second terminal communicate according to said the 2nd PM message.
7. multimedia capabilities consulting device according to claim 6 is characterized in that,
Said first constructing module specifically is used for the priority of the media capability at said first terminal is filled into a said PM message, and the priority of said media capability comprises the priority and the priority of sending media capability of the receiving media ability at said first terminal.
8. multimedia capabilities consulting device according to claim 7 is characterized in that, said the 2nd PM message comprises the transmission media capability and the receiving media ability at said second terminal, and said first processing module comprises:
Judging unit is used to judge whether said first terminal possesses the transmission media capability consistent with the receiving media ability at said second terminal, and whether possesses the receiving media ability consistent with the transmission media capability at said second terminal;
Processing unit; Be used for possessing the transmission media capability consistent with the receiving media ability at said second terminal when said first terminal; When possessing the receiving media ability consistent, confirm that said first terminal communicates through pre-configured passage of medium and said second terminal with the transmission media capability at said second terminal.
9. a multimedia capabilities consulting device is applied in the pre-configured passage MONA-MPC of the negotiation acceleration-medium system of medium, it is characterized in that, comprising:
Second interface module is used to receive the first priority P M message that send at first terminal, carries the priority of the media capability at said first terminal in the said PM message;
Second processing module is used for confirming that according to the priority of the media capability at said first terminal second terminal and said first terminal communicate used media capability;
Second constructing module is used for constructing the 2nd PM message according to the media capability at determined said second terminal;
Said second interface module also is used to send said the 2nd PM message to said first terminal, so that the media channel that said first terminal is confirmed and said second terminal communicates.
10. multimedia capabilities consulting device according to claim 9 is characterized in that, the priority of the media capability at said first terminal comprises the priority and the priority of sending media capability of the receiving media ability at first terminal,
Said second processing module specifically is used for confirming that according to the priority of the receiving media ability at said first terminal said second terminal and said first terminal communicate used transmission media capability, confirms that according to the priority of the transmission media capability at said first terminal said second terminal and said first terminal communicate used receiving media ability.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101497200A CN102811336A (en) | 2011-06-03 | 2011-06-03 | Method and apparatus for capability negotiation of multimedia |
| PCT/CN2012/072194 WO2012163126A1 (en) | 2011-06-03 | 2012-03-12 | Multimedia ability negotiation method and device |
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| CN2011101497200A CN102811336A (en) | 2011-06-03 | 2011-06-03 | Method and apparatus for capability negotiation of multimedia |
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| CN105874852A (en) * | 2013-09-11 | 2016-08-17 | 惠普发展公司，有限责任合伙企业 | Mobile device power control |
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| CN105874852B (en) * | 2013-09-11 | 2020-03-13 | 惠普发展公司，有限责任合伙企业 | Mobile device power control |
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| WO2012163126A1 (en) | 2012-12-06 |
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