CN101483930A - Utilizing method, device and system for media gateway resource - Google Patents
Utilizing method, device and system for media gateway resource Download PDFInfo
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- CN101483930A CN101483930A CNA2008101888611A CN200810188861A CN101483930A CN 101483930 A CN101483930 A CN 101483930A CN A2008101888611 A CNA2008101888611 A CN A2008101888611A CN 200810188861 A CN200810188861 A CN 200810188861A CN 101483930 A CN101483930 A CN 101483930A
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Abstract
An embodiment of the invention discloses a method for utilizing media gateway resource, a device and a system thereof. The method includes steps as follows: receiving information carrying with translating and editing ability of a calling side; comparing the translating and editing ability of the calling and a called side whether having intersection, if no, the control media gateway provides the translating and editing converting ability to the calling side and the called side. The embodiment can distinguish which circs needs to control the media gateway as the calling side and the called side for providing the translating and editing converting ability, which circs needs not to control the media gateway as the calling side and the called side for providing the translating and editing converting ability, accordingly, the media gateway resource can be utilized reasonably.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of media gateway resource utilizes method, equipment and system.
Background technology
Session Description Protocol (SDP, Session Description Protocol) is a kind of Multimedia session announcement that is used for describing, and Multimedia session is invited and other forms of Multimedia session is described initialized agreement.In a session, the dialog events that Calling Side and callee side not only can use the SDP message semantic definition to take place, comprise: the type that session foundation, session are set up, time that session is carried out or the like, and SDP message is also carried separately coding and decoding (CODEC, Coder-Decoder) ability.Have only when the coding and decoding ability of Calling Side and callee side has common factor, Calling Side and callee side can normally carry out session.Wherein, the coding and decoding ability of described Calling Side is the coding and decoding ability of the media gateway of Calling Side; The coding and decoding ability of described callee side is the coding and decoding ability of the media gateway of callee side.
At Internet protocol IP multimedia subsystem, IMS (IMS, Internet Protocol MultimediaSubsystem) there are some special IMS network elements in the network, such as MGCF (MGCF, Media Gateway Control Function) network element, network element as intercommunication between IMS network and the flexible exchanging network, be used to control the media gateway (MGW related with self, Media Gateway), the coding and decoding transfer capability is provided for the Calling Side and the callee side that do not have the coding and decoding ability to occur simultaneously by this MGW, makes Calling Side and callee side can normally carry out session.
Technical scheme commonly used is the fixing MGCF of employing control MGW, the coding and decoding transfer capability is provided for Calling Side and callee side by MGW.Wherein, MGCF can adopt H.248 agreement control MGW, makes MGW the coding and decoding transfer capability is provided for Calling Side and callee side.
The inventor finds that the shortcoming of this scheme is: when caller and called when having the coding and decoding ability to occur simultaneously, can cause MGW resource serious waste.
Summary of the invention
What the embodiment of the invention provided a kind of media gateway resource utilizes method, equipment and system, can reasonably utilize media gateway resource.
For achieving the above object, the embodiment of the invention provides following technical scheme:
The embodiment of the invention provides a kind of method of utilizing of media gateway resource, comprising:
The message of the coding and decoding ability of Calling Side is carried in reception;
Whether the coding and decoding ability of more described Calling Side and the coding and decoding ability of callee side have common factor, and if not, the control media gateway provides the coding and decoding transfer capability for Calling Side and callee side.
The embodiment of the invention provides a kind of controller, comprising:
Receiver module is used to receive the message of the coding and decoding ability of carrying Calling Side;
Comparison module, whether be used for the coding and decoding ability of more described Calling Side and the coding and decoding ability of callee side has common factor;
Control module, when the coding and decoding ability that is used for comparative result at described comparison module and is the coding and decoding ability of described Calling Side and callee side did not have common factor, the control media gateway provided the coding and decoding transfer capability for Calling Side and callee side.
The embodiment of the invention also provides a kind of network system, comprises controller and media gateway, but described controller is connected with media gateway with communication mode;
Described controller is used to receive the message of the coding and decoding ability of carrying Calling Side; Whether the coding and decoding ability of more described Calling Side and the coding and decoding ability of callee side have common factor, if not, control described media gateway and provide the coding and decoding transfer capability for Calling Side and callee side;
Described media gateway is used for when the coding and decoding ability of the coding and decoding ability of described Calling Side and callee side is not occured simultaneously, for Calling Side and callee side provide the coding and decoding transfer capability.
Whether the coding and decoding ability of embodiment of the invention comparison Calling Side and the coding and decoding ability of callee side have common factor, determine whether to need the control media gateway to provide the coding and decoding transfer capability for Calling Side and callee side, thereby can the reasonable use media gateway resource.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The schematic flow sheet that utilizes method of a kind of media gateway that Fig. 1 provides for the embodiment of the invention one;
The schematic flow sheet that utilizes method of a kind of media gateway that Fig. 2 provides for the embodiment of the invention two;
The logical construction schematic diagram of a kind of controller that Fig. 3 provides for the embodiment of the invention three;
The schematic diagram of a kind of network system that Fig. 4 provides for the embodiment of the invention four.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
For the ease of the embodiment of the invention is further understood, the embodiment of the invention is described in detail below in conjunction with accompanying drawing.
Embodiment one:
See also Fig. 1, the schematic flow sheet that utilizes method of a kind of media gateway resource that Fig. 1 provides for the embodiment of the invention one.As shown in Figure 1, this method can comprise:
Step 101: the message that receives the coding and decoding ability of carrying Calling Side.
Step 102: whether the coding and decoding ability of more described Calling Side and the coding and decoding ability of callee side have common factor, and if not, the control media gateway provides the coding and decoding transfer capability for Calling Side and callee side.
Wherein, the coding and decoding ability of callee side is pre-configured, and the coding and decoding ability of described pre-configured callee side can be according to the first configuration of being called out the numbers, with number prime minister with called as a subclass, obtain several different called subclass; Wherein, the coding and decoding ability supported of the coding and decoding ability that is endowed of each called subclass and its place media gateway resource is identical.
Wherein, so-called promptly is former positions of called number by the head that calls out the numbers, and how much length of concrete called first place (being how many figure places) is can be provided with voluntarily by the user, such as, the first place 0754-8283,0754-2897 or the like of being called out the numbers.
Wherein, the coding and decoding ability of Calling Side is carried by Session Description Protocol message.
If the coding and decoding ability of the coding and decoding ability of more described Calling Side and pre-configured callee side is common factor not, need the control media gateway to provide the coding and decoding transfer capability for Calling Side and callee side, otherwise can cause the percept of call completed between Calling Side and the callee side low, even cause and to call out.
Otherwise if the coding and decoding ability of the coding and decoding ability of more described Calling Side and pre-configured callee side has common factor, then Calling Side and callee side can normal calls and alternately, need not to control media gateway and provide the coding and decoding transfer capability for Calling Side and callee side.If the control media gateway provides the coding and decoding transfer capability for Calling Side and callee side, can cause the media gateway resource serious waste.
Because the configuration of the coding and decoding ability of callee side is based on an incompatible configuration of abstract set, so may be inconsistent for the coding and decoding ability of the coding and decoding ability of the callee side of some call arrangement and actual called place gateway.For caller with calledly be actually that the coding and decoding ability occurs simultaneously, but be made into the situation that does not have the coding and decoding ability to occur simultaneously in the time of configuration, after receiving follow-up real called party coding and decoding ability, keep original control media gateway that the call bearer model of coding and decoding transfer capability is provided for Calling Side and callee side; There is not the coding and decoding ability to occur simultaneously for caller and called being actually, but be made into the situation that has the coding and decoding ability to occur simultaneously in the time of configuration, when receiving called office call release message, need carry out the gravity treatment road according to call release message, the calling after the routing adopts the control media gateway that the call bearer model of coding and decoding transfer capability is provided for Calling Side and callee side once more.
The embodiment of the invention provides a kind of method of utilizing of media gateway resource, coding/decoding capability by the media gateway resource support of configuration callee side place, the coding/decoding capability that this ability and Calling Side are sended over compares judgement, whether utilizes media gateway resource thereby can dynamically reasonably determine this to call out.
Embodiment two:
See also Fig. 2, the schematic flow sheet that utilizes method of a kind of media gateway resource that Fig. 2 provides for the embodiment of the invention two.The embodiment of the invention as executive agent, is introduced the method for utilizing of media gateway resource that the embodiment of the invention provides with the MGCF network element.As shown in Figure 2, this method can comprise:
Step 201:MGCF network element receives the information of session description protocol that carries the coding and decoding ability that Calling Side sends.
Wherein, the coding and decoding ability of carrying of described Calling Side transmission is the coding and decoding ability of the media gateway resource support of Calling Side.
Step 202: whether the coding and decoding ability of the coding and decoding ability of more described Calling Side and pre-configured callee side has common factor, if not, and execution in step 203; If then execution in step 204.
Wherein, relatively whether the coding and decoding ability of the coding and decoding ability of Calling Side and pre-configured callee side has common factor specifically can be:
Obtain the coding and decoding ability of the Calling Side that Session Description Protocol message that described Calling Side sends carries;
Whether have common factor, if not, then execution in step 203 if contrasting the coding and decoding ability of described Calling Side and the coding and decoding ability of pre-configured callee side.
Step 203: the control media gateway provides the coding and decoding transfer capability for Calling Side and callee side.
Wherein, can adopt H.248 agreement that media gateway is controlled, make described media gateway provide the coding and decoding transfer capability for Calling Side and callee side.
Step 204: do not control media gateway and provide the coding and decoding transfer capability for Calling Side and callee side.
Give an example, for example:
Caller is A;
Called set one (B=07548283XXX, C=07548283XXX, D=07548283XXX);
Called set two (E=07542897XXX, F=07542897XXX, G=07542897XXX);
The coding and decoding ability of the media gateway resource support at caller A place is: CODEC_A, CODEC_B, CODEC_C;
The coding and decoding ability that called set one place media gateway resource is supported: CODEC_B, CODEC_C;
The coding and decoding ability that called set two place media gateway resources are supported: CODEC_E, CODEC_F.
When caller A calls out the user of called set one, receive the coding and decoding ability CODEC_A that carries Calling Side that caller A sends, CODEC_B, the Session Description Protocol message of CODEC_C; With the coding and decoding ability CODEC_A of described Calling Side, CODEC_B, the coding and decoding ability of CODEC_C and pre-configured called set one is got common factor; Because having the coding and decoding ability, Calling Side and callee side occur simultaneously: CODEC_B, CODEC_C; Provide the coding and decoding transfer capability so need not to control media gateway for Calling Side and callee side.
When caller A calls out the user of called set two, receive the coding and decoding ability CODEC_A that carries Calling Side that caller A sends, CODEC_B, the Session Description Protocol message of CODEC_C; With the coding and decoding ability CODEC_A of described Calling Side, CODEC_B, the coding and decoding ability CODEC_E of CODEC_C and pre-configured called set two, CODEC_F gets common factor; Because Calling Side and callee side do not have the coding and decoding ability to occur simultaneously, so the control media gateway provides the coding and decoding transfer capability for Calling Side and callee side.
The OA that utilizes method to save to carry out in order to determine whether to have the coding and decoding ability between Calling Side and the callee side of the media gateway resource that the embodiment of the invention provides consults.Because carrying out OA between Calling Side and the callee side consults to determine whether to have the coding and decoding ability and has following problem at least:
If the coding and decoding ability is A in the information of session description protocol that a Calling Side sends, B, C, the coding and decoding ability is D in the information of session description protocol of callee side, E, C, callee side is the D of oneself preferably, rather than sends C and return, and so just can't realize using this public coding and decoding ability of C;
If two. after carrying out the OA negotiation first time, find not have the coding and decoding ability to occur simultaneously, determine the call bearer model again, can cause call proceeding seriously to postpone, and all be that very big technical difficulty is arranged in handling process and the OA negotiation.
As seen, the embodiment of the invention can just can confirm whether to need to control media gateway resource before OA consults, thereby can save serious the delay and complicated OA negotiation flow process of conversation switching that the OA negotiation brings.
The method of utilizing of the above-mentioned media gateway resource that the embodiment of the invention two is provided is described in detail, whether the coding and decoding ability of coding and decoding ability that sends by Calling Side relatively and pre-configured callee side has common factor, determine whether to need the control media gateway to provide the coding and decoding transfer capability for Calling Side and callee side, thus can the reasonable use media gateway resource.
Embodiment three:
See also Fig. 3, the logical construction schematic diagram of a kind of controller that Fig. 3 provides for the embodiment of the invention three.As shown in Figure 3, this device can comprise:
Wherein, the coding and decoding ability of Calling Side is carried by Session Description Protocol message.
Whether comparison module 302, being used for the coding and decoding ability of the Calling Side that more described receiver module 301 receives and the coding and decoding ability of callee side has common factor.
Described controller can also comprise configuration module 304, be used to dispose the coding and decoding ability of callee side, it specifically is coding and decoding ability according to the first pre-configured callee side of being called out the numbers, will by call out the numbers the prime minister with called as a subclass, dispose the coding and decoding ability of this subclass, the coding and decoding ability of this subclass is identical with the coding and decoding ability that its place media gateway resource is supported.
Wherein, so-called promptly is former positions of called number by the head that calls out the numbers, and how much length of concrete called first place (being how many figure places) is can be provided with voluntarily by the user, such as, the first place 0754-8283,0754-2897 or the like of being called out the numbers.
H.248 described control module 303 can adopt agreement that media gateway is controlled, and makes described media gateway provide the coding and decoding transfer capability for Calling Side and callee side.
Wherein, described comparison module 302 can comprise:
It specifically can be the coding and decoding ability of obtaining the Calling Side that Session Description Protocol message that described receiver module 301 receives carries.
Specifically can be whether the coding and decoding ability of the Calling Side that obtains of the described acquisition module 3021 of contrast and the coding and decoding ability of pre-configured callee side have common factor.
Give an example, for example:
Caller is A;
Called set one (B=07548283XXX, C=07548283XXX, D=07548283XXX);
Called set two (E=07542897XXX, F=07542897XXX, G=07542897XXX);
The coding and decoding ability of the media gateway resource support at caller A place is: CODEC_A, CODEC_B, CODEC_C;
The coding and decoding ability that called set one place media gateway resource is supported: CODEC_B, CODEC_C;
The coding and decoding ability that called set two place media gateway resources are supported: CODEC_E, CODEC_F.
When caller A called out the user of called set one, described receiver module 301 received the coding and decoding ability CODEC_A that carries Calling Side that caller A sends, CODEC_B, the Session Description Protocol message of CODEC_C;
Described acquisition module 3021 obtains the coding and decoding ability CODEC_A of the Calling Side that described Session Description Protocol message that described receiver module 301 receives carries, CODEC_B, CODEC_C;
The coding and decoding ability CODEC_A of the Calling Side that the described acquisition module 3021 of described contrast module 3022 contrasts obtains, CODEC_B, the coding and decoding ability CODEC_B of the called set one that CODEC_C and configuration module 304 are pre-configured, CODEC_C has common factor CODEC_B, CODEC_C;
So control module 303 is not controlled media gateway and is provided the coding and decoding transfer capability for Calling Side and callee side.
When caller A called out the user of called set two, described receiver module 301 received the coding and decoding ability CODEC_A that carries Calling Side that caller A sends, CODEC_B, the Session Description Protocol message of CODEC_C;
Described acquisition module 3021 obtains the coding and decoding ability CODEC_A of the Calling Side that described Session Description Protocol message that described receiver module 301 receives carries, CODEC_B, CODEC_C;
The coding and decoding ability CODEC_A of the Calling Side that the described acquisition module 3021 of described contrast module 3022 contrasts obtains, CODEC_B, the coding and decoding ability CODEC_E of the called set two that CODEC_C and configuration module 304 are pre-configured, CODEC_F does not occur simultaneously;
H.248 described control module 303 adopts agreement that media gateway is controlled, and makes described media gateway provide the coding and decoding transfer capability for Calling Side and callee side.
Need to prove that the controller that the embodiment of the invention provides can be used as the part of MGCF Network Element Function or control device independently.
Above-mentioned a kind of controller that the embodiment of the invention three is provided is described in detail, relatively whether the coding and decoding ability of Calling Side transmission and the coding and decoding ability of callee side have common factor, if do not occur simultaneously, then control media gateway and provide the coding and decoding transfer capability for Calling Side and callee side, thus can the reasonable use media gateway resource.
Embodiment four:
See also Fig. 4, the schematic diagram of a kind of network system that Fig. 4 provides for the embodiment of the invention four.As shown in Figure 4, this network system can comprise:
Described controller 401 is used to receive the message of the coding and decoding ability of carrying Calling Side; Whether the coding and decoding ability of more described Calling Side and the coding and decoding ability of callee side have common factor, if not, control described media gateway and provide the coding and decoding transfer capability for Calling Side and callee side;
Described media gateway 402 is used for when the coding and decoding ability of the coding and decoding ability of described Calling Side and callee side is not occured simultaneously, for Calling Side and callee side provide the coding and decoding transfer capability.
Wherein, described controller 401 also is used to dispose the coding and decoding ability of callee side, the coding and decoding ability of callee side is first pre-configured according to being called out the numbers, will by call out the numbers the prime minister with called as a subclass, dispose the coding and decoding ability of this subclass, the coding and decoding ability of this subclass is identical with the coding and decoding ability that its place media gateway resource is supported.
Wherein, the coding and decoding ability of Calling Side is carried by Session Description Protocol message.
The concrete logical construction of the controller 401 that the embodiment of the invention provides is identical with the logical construction of the controller that embodiment three provides, and here no longer repeats.
Whether a kind of network system that the embodiment of the invention four provides has common factor by the coding and decoding ability of controller comparison Calling Side transmission and the coding and decoding ability of callee side, if do not occur simultaneously, then control media gateway and provide the coding and decoding transfer capability for Calling Side and callee side, thus can the reasonable use media gateway resource.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as read-only memory (ROM), random access device (RAM), magnetic disc or CD.
More than utilize method, equipment and the system of a kind of media gateway resource that the embodiment of the invention provided is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1, a kind of media gateway resource utilize method, it is characterized in that, comprising:
The message of the coding and decoding ability of Calling Side is carried in reception;
Whether the coding and decoding ability of more described Calling Side and the coding and decoding ability of callee side have common factor, and if not, the control media gateway provides the coding and decoding transfer capability for Calling Side and callee side.
2, method according to claim 1 is characterized in that, the coding and decoding ability of described Calling Side is carried by Session Description Protocol message.
3, method according to claim 1 is characterized in that, the coding and decoding ability of described callee side is first pre-configured according to being called out the numbers.
4, method according to claim 3 is characterized in that, comprising:
Will by call out the numbers the prime minister with called as a subclass;
Dispose the coding and decoding ability of this subclass, the coding and decoding ability of this subclass is identical with the coding and decoding ability that its place media gateway resource is supported.
5, according to each described method of claim 1 to 4, it is characterized in that, comprising:
Obtain the coding and decoding ability of the Calling Side that described message carries;
Whether have common factor, if not, then control media gateway and provide the coding and decoding transfer capability for Calling Side and callee side if contrasting the coding and decoding ability of described Calling Side and the coding and decoding ability of callee side.
6, a kind of controller is characterized in that, comprising:
Receiver module is used to receive the message of the coding and decoding ability of carrying Calling Side;
Comparison module, whether be used for the coding and decoding ability of more described Calling Side and the coding and decoding ability of callee side has common factor;
Control module, when the coding and decoding ability that is used for comparative result at described comparison module and is the coding and decoding ability of described Calling Side and callee side did not have common factor, the control media gateway provided the coding and decoding transfer capability for Calling Side and callee side.
7, controller according to claim 6, it is characterized in that, described controller also comprises configuration module, be used to dispose the coding and decoding ability of callee side, it specifically is coding and decoding ability according to the first pre-configured callee side of being called out the numbers, will by call out the numbers the prime minister with called as a subclass, dispose the coding and decoding ability of this subclass, the coding and decoding ability of this subclass is identical with the coding and decoding ability of its place media gateway resource support.
8, according to claim 6 or 7 described controllers, it is characterized in that described comparison module comprises:
Acquisition module is used to obtain the coding and decoding ability of the Calling Side that described message carries;
The contrast module is used to contrast the coding and decoding ability of described Calling Side and whether the coding and decoding ability of callee side has common factor.
9, a kind of network system is characterized in that, comprises controller and media gateway, but described controller is connected with media gateway with communication mode;
Described controller is used to receive the message of the coding and decoding ability of carrying Calling Side; Whether the coding and decoding ability of more described Calling Side and the coding and decoding ability of callee side have common factor, if not, control described media gateway and provide the coding and decoding transfer capability for Calling Side and callee side;
Described media gateway is used for when the coding and decoding ability of the coding and decoding ability of described Calling Side and callee side is not occured simultaneously, for Calling Side and callee side provide the coding and decoding transfer capability.
10, system according to claim 9, it is characterized in that, described controller also is used to dispose the coding and decoding ability of callee side, the coding and decoding ability of callee side is first pre-configured according to being called out the numbers, will by call out the numbers the prime minister with called as a subclass, dispose the coding and decoding ability of this subclass, the coding and decoding ability of this subclass is identical with the coding and decoding ability that its place media gateway resource is supported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101888611A CN101483930A (en) | 2008-12-30 | 2008-12-30 | Utilizing method, device and system for media gateway resource |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101888611A CN101483930A (en) | 2008-12-30 | 2008-12-30 | Utilizing method, device and system for media gateway resource |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012075966A1 (en) * | 2010-12-10 | 2012-06-14 | 华为技术有限公司 | Processing method for media streams, and media gateway |
| CN106791241A (en) * | 2016-12-09 | 2017-05-31 | 中国联合网络通信集团有限公司 | A kind of coding/decoding negotiation method and call controller |
| CN110557593A (en) * | 2018-06-01 | 2019-12-10 | 中兴通讯股份有限公司 | Media transmission method and H323-SIP gateway |
-
2008
- 2008-12-30 CN CNA2008101888611A patent/CN101483930A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012075966A1 (en) * | 2010-12-10 | 2012-06-14 | 华为技术有限公司 | Processing method for media streams, and media gateway |
| CN106791241A (en) * | 2016-12-09 | 2017-05-31 | 中国联合网络通信集团有限公司 | A kind of coding/decoding negotiation method and call controller |
| CN110557593A (en) * | 2018-06-01 | 2019-12-10 | 中兴通讯股份有限公司 | Media transmission method and H323-SIP gateway |
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Open date: 20090715 |