CN101552771A - Media gateway, media gateway controller, multimedia telephone intercommunication method and system - Google Patents
Media gateway, media gateway controller, multimedia telephone intercommunication method and system Download PDFInfo
- Publication number
- CN101552771A CN101552771A CN 200810090253 CN200810090253A CN101552771A CN 101552771 A CN101552771 A CN 101552771A CN 200810090253 CN200810090253 CN 200810090253 CN 200810090253 A CN200810090253 A CN 200810090253A CN 101552771 A CN101552771 A CN 101552771A
- Authority
- CN
- China
- Prior art keywords
- media gateway
- multimedia telephone
- quality information
- information
- dynamically
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a media gateway, a media gateway controller, a multimedia telephone intercommunication method and a system, which relate to the field of communication technology and are invented for solving the problem of not dynamically adjusting the communication quality during the intercommunication of an IMS multimedia telephone and a CS multimedia telephone in the prior art. The multimedia telephone intercommunication method provided by the embodiment of the invention comprises the following steps under the scene of the intercommunication of the IMS multimedia telephone and the CS multimedia telephone: the media gateway receives quality messages fed back by an IMS side multimedia telephone terminal; and the media gateway dynamically adjusts the communication quality according to the quality messages. The invention is suitable to the intercommunication of the multimedia telephones, and improves the communication quality of the intercommunication of the multimedia telephones.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of media gateway, Media Gateway Controller, multimedia telephone intercommunication method and system.
Background technology
At present, at 3GPP (3rd Generation Partnership Project, third generation partner program) IMS (IP Multimedia Subsystem, IP Multimedia System) multimedia telephone terminal and CS (Circuit Switch, circuit switching) H.324 side in the intercommunication of multimedia telephone terminal, carries out the intercommunication of information by gateway system usually.
IMS side multimedia telephone terminal and CS side H.324 multimedia telephone terminal carry out in the process of intercommunication quality problems that the packet that IMS side multimedia telephone terminal can occur sending usually steadily causes that buffering area overflows etc. inadequately.After gateway system is found this problem, to abandon this packet, and with RTCP (Real-timeTransport Control Protocol, RTCP Real-time Transport Control Protocol) form sends RR (Resource Record to IMS side multimedia telephone terminal, resource record) message, this packet of notice IMS side multimedia telephone terminal is lost, and perhaps adopts the mode of consulting coding again to improve the quality of mediaphone.
In realizing process of the present invention, the inventor finds that there are the following problems in the prior art:
IMS side multimedia telephone terminal takes place or detected quality problems can only be solved by the form of gateway system by packet loss, and IMS side multimedia telephone terminal can not be given concrete quality information feedback gateway system, and then, gateway system can not dynamically be adjusted with adaptive the quality problems that occur in the multimedia interconnection according to the quality information of being received, is unfavorable for improving the communication quality in the multimedia telephone intercommunication.
Summary of the invention
On the one hand, embodiments of the invention provide a kind of multimedia telephone intercommunication method, and this method can improve the communication quality in the multimedia telephone intercommunication.
The embodiments of the invention multimedia telephone intercommunication method is by the following technical solutions:
A kind of multimedia telephone intercommunication method, under the scene of IMS mediaphone and CS multimedia telephone intercommunication, described method comprises the steps:
Media gateway receives the quality information that IMS side multimedia telephone terminal feedback is come;
Media gateway is dynamically adjusted communication quality according to described quality information.
The embodiments of the invention multimedia telephone intercommunication method, in the multimedia telephone intercommunication process, media gateway can be obtained the quality information that IMS side multimedia telephone terminal feedback is come at any time, and takes different measures according to described quality information, and communication quality is dynamically adjusted.Compared with prior art, IMS side multimedia telephone terminal occurs or detected quality information, can feed back to media gateway in time, all sidedly, according to described quality information communication quality dynamically be adjusted by media gateway, and then the communication quality in the raising multimedia telephone intercommunication.
On the other hand, embodiments of the invention provide a kind of media gateway, and this media gateway can improve the communication quality in the multimedia telephone intercommunication.
The embodiments of the invention media gateway is by the following technical solutions:
A kind of media gateway comprises:
Receiving element is used to receive the quality information that IMS side multimedia telephone terminal feedback is come;
Adjustment unit is used for according to described quality information communication quality dynamically being adjusted.
The embodiments of the invention media gateway, receiving element can obtain the quality information that IMS side multimedia telephone terminal feedback is come at any time, and take different measures according to described quality information, communication quality is dynamically adjusted according to described quality information by adjustment unit.Compared with prior art, IMS side multimedia telephone terminal occurs or detected quality information, can feed back to adjustment unit in time, all sidedly, according to described quality information communication quality dynamically be adjusted by adjustment unit, and then the communication quality in the raising multimedia telephone intercommunication.
The third aspect, embodiments of the invention provide a kind of Media Gateway Controller, and this Media Gateway Controller can improve the communication quality in the multimedia telephone intercommunication.
The embodiments of the invention Media Gateway Controller is by the following technical solutions:
A kind of Media Gateway Controller comprises:
Accept the unit, be used to accept the quality information of medium gateway to report;
Feedback unit is used for dynamically adjusting to CS side multimedia telephone terminal described quality information feedback.
The embodiments of the invention Media Gateway Controller, when media gateway can not dynamically be adjusted communication quality according to the quality information that described IMS side multimedia telephone terminal feedback is come, to report gateway controller to described quality information, after accepting quality information that the unit receives medium gateway to report, dynamically adjust to CS side multimedia telephone terminal described quality information feedback by feedback unit.Compared with prior art, gateway controller receiving media gateway at any time feeds back the quality information of coming and dynamically adjusts, and then improves the communication quality in the multimedia telephone intercommunication.
Fourth aspect, embodiments of the invention provide a kind of multimedia telephone intercommunication system, and this system can improve the communication quality in the multimedia telephone intercommunication.
Embodiments of the invention multimedia telephone intercommunication system is by the following technical solutions:
A kind of multimedia telephone intercommunication system comprises:
Media gateway is used to receive the quality information that IMS side multimedia telephone terminal feedback is come, and according to described quality information communication quality is dynamically adjusted;
Media Gateway Controller is used for the quality information that the receiving media gateway reports, and dynamically adjusts to CS side multimedia telephone terminal described quality information feedback.
Embodiments of the invention multimedia telephone intercommunication system, media gateway can be obtained the quality information that IMS side multimedia telephone terminal feedback is come at any time, and take different measures according to described quality information, by media gateway communication quality is dynamically adjusted, perhaps described quality information is reported Media Gateway Controller, dynamically adjust to CS side multimedia telephone terminal described quality information feedback by Media Gateway Controller.Compared with prior art, IMS side multimedia telephone terminal occurs or detected quality information, can feed back to media gateway in time, all sidedly, and communication quality dynamically be adjusted according to described quality information, and then the communication quality in the raising multimedia telephone intercommunication.
Description of drawings
The multimedia telephone intercommunication method flow chart that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the flow chart of situation one among the multimedia telephone intercommunication method embodiment one provided by the invention;
Fig. 3 is the flow chart of situation two among the multimedia telephone intercommunication method embodiment one provided by the invention;
Fig. 4 is multimedia telephone intercommunication method embodiment two flow charts provided by the invention;
Fig. 5 is multimedia telephone intercommunication method embodiment three flow charts provided by the invention;
Fig. 6 is multimedia telephone intercommunication method embodiment four flow charts provided by the invention;
Fig. 7 is an embodiment of the invention media gateway architectures schematic diagram;
Fig. 8 is an embodiment of the invention Media Gateway Controller structural representation;
The multimedia telephone intercommunication system construction drawing that Fig. 9 provides for the embodiment of the invention.
Embodiment
In order to solve in the prior art the not high problem of communication quality in IMS mediaphone and CS multimedia telephone intercommunication, embodiments of the invention provide a kind of media gateway, Media Gateway Controller, multimedia telephone intercommunication method and system.
Below in conjunction with drawings and Examples the present invention is elaborated.
Embodiments of the invention provide a kind of multimedia telephone intercommunication method, and this method can improve the communication quality in IMS mediaphone and the CS multimedia telephone intercommunication.
As shown in Figure 1, under the scene of IMS mediaphone and CS multimedia telephone intercommunication, described method comprises the steps:
S1: media gateway receives the quality information that IMS side multimedia telephone terminal feedback is come;
S2: media gateway is dynamically adjusted communication quality according to described quality information.
The embodiments of the invention multimedia telephone intercommunication method, in the multimedia telephone intercommunication process, media gateway can be obtained the quality information that IMS side multimedia telephone terminal feedback is come at any time, and takes different measures according to described quality information, and communication quality is dynamically adjusted.Compared with prior art, IMS side multimedia telephone terminal occurs or detected quality information, can feed back to media gateway in time, all sidedly, according to described quality information communication quality dynamically be adjusted by media gateway, and then the communication quality in the raising multimedia telephone intercommunication.
Wherein, described media gateway (MGW, Media Gateway) and Media Gateway Controller (MGCF, Media Gateway Control Function) are two key members in the next generation network, MGW is responsible for providing media resource and bearing resource, and MGCF is responsible for CCF.
H.324 under the situation of multimedia telephone terminal intercommunication, the detected quality information of IMS side multimedia telephone terminal is at least one in maximum bandwidth request, frame per second rank parameter, packet loss, the buffer information in IMS side multimedia telephone terminal and CS side.
In order to be illustrated more clearly in the method for multimedia interconnection of the present invention, corresponding with above-mentioned situation, provide specific embodiments of the invention below.
Embodiment one:
For the multimedia telephone intercommunication of having set up, when MTSI (IMS mediaphone) terminal moves to the intensive place of wireless user, because Radio Resource is relatively more nervous, the bandwidth of distributing to unique user will descend.At this moment, IMS side multimedia telephone terminal detects the network bandwidth and descends, and IMS side multimedia telephone terminal will require MGW to reduce bandwidth by RTCP to MGW feedback maximum bandwidth request TMMBR request message.After MGW receives the maximum bandwidth request, at first judge whether inserted video code translator in the described session, and whether video can be adjusted to described bandwidth requirement.
Situation one: if comprised video code translator in the described session, and video can be adjusted to described bandwidth requirement, then MGW self just can handle video, and the video transmission rate is adjusted.As shown in Figure 2, concrete steps are:
201, IMS side multimedia telephone terminal detects bandwidth and changes needs band internal feedback rate request;
202-203, IMS side multimedia telephone terminal are given MGW by the TMMBR request of RTCP with quality information feedback, wherein, comprise maximum bandwidth information in the described request;
204, MGW adjusts to the bandwidth of video flowing the numerical value of IMS side multimedia telephone terminal request by described video code translator;
205-206, carry out adjusted affirmation, MGW notice IMS side multimedia telephone terminal has been adjusted to the bandwidth that satisfies request.
Situation two: if do not use video code translator in the described session, perhaps inserted video code translator, but video can not be adjusted to described bandwidth requirement, then MGW will give MGCF maximum bandwidth information by information reporting H.248, by MGCF with described maximum bandwidth information by H.245 feeding back to H.324 multimedia telephone terminal of CS side, by the CS side H.324 multimedia telephone terminal dynamically adjust video coding according to maximum bandwidth.As shown in Figure 3, concrete steps are:
Session between 301-303, MGW foundation and the MGCF, MGCF indication MGW detects the bandwidth quality information of RTCP feedback;
304-306, when IMS side multimedia telephone terminal detects bandwidth when indication, will feed back described bandwidth quality information by the TMMBR request of RTCP, wherein, comprise maximum bandwidth information in the described quality information;
307-308, MGW H.248 to offer MGCF in form, wherein, comprise maximum bandwidth information with the quality information of IMS side multimedia telephone terminal feedback in the described quality information;
309-310, MGW send the maximum bandwidth confirmation to IMS side multimedia telephone terminal;
311-312, MGCF are according to the bandwidth information that comprises in the RTCP feedack, feed back to H.324 multimedia telephone terminal of CS side by flow-control command H.245, CS side H.324 multimedia telephone terminal is dynamically adjusted video coding and frame per second according to maximum bandwidth.
Wherein, described H.248 agreement is the definition of ITU-T SG16 (International Telecommunications Union-telecommunication standard branch) normal structure, is specifically designed to the agreement of media resource control.Can be used for controlling medium processing devices such as media gateway, Media Gateway Controller.
H.248 the basic principle of agreement is: the various resources on the medium processing device are conceptualized as network, and network is divided into physical network and casual network again.Physical network is represented some physical entities with semipermanent existence, as TDM (Time Division Multiplex, time division multiplexing) time slot; The public resource that on behalf of provisional application, casual network use the back to discharge flows as RTP (Real-Time Transport Protocol, RTP).Combination between the network is conceptualized as context, with the topological relation of describing between the network.Abstract based on these, call proceeding is actually network and contextual operation, finishes by command request between medium control device and the medium processing device and response, and order comprises increase, modification, deletion, notice etc.; Command parameter is called descriptor, is categorized as attribute (Property), signal (Signal), incident (Event), statistics (Statistic), and the parameter with professional correlation is polymerized to a bag (Package) in logic.Bag is the method for the Extended Protocol function that provides of agreement H.248.
H.248 agreement increases new function by wrapping the function of Extended Protocol in agreement, does not generally need to revise the agreement body, and only need define new bag (Package).A bag can be regarded the encapsulation of an autonomous behavior as, when medium processing device is claimed this bag of support, also just equal it and support this characteristic, medium control device just can use attribute, incident, signal, the statistics of definition in this bag, operate the media resource on the medium processing device, realize the corresponding service logic.
Embodiment two:
Usually, under the certain situation of bandwidth, for the fierce picture of video content motion, need to select high frame per second, low image quality guarantees the quality of multimedia interconnection; And be tending towards for video content under the situation of static state, then adopt low frame per second, high picture quality to guarantee the quality of multimedia interconnection.When detecting video quality when bad, its main cause is a frame per second and image quality is inharmonious causes.At this moment, MGW at first judges in the session with IMS side multimedia telephone terminal whether comprised video code translator or inserted video code translator, and judges whether the frame per second and the resolution of the request of video coding can being adjusted to.
If inserted video code translator in the described session, and video coding can have been adjusted to the frame per second and the resolution of request, then handle, to frame per second with image resolution ratio is coordinated and balance by MGW self.Concrete steps are: at first, IMS side multimedia telephone terminal asks the balance request of frame per second and image resolution ratio is sent to MGW by the TMMBR of RTCP, wherein, comprises frame per second rank parameter in the balance request of described frame per second and image resolution ratio; Then, MGW is by video code translator, frame per second and image resolution ratio adjusted to the balance point of IMS side multimedia telephone terminal request; At last, MGW notice IMS side multimedia telephone terminal has been adjusted to the balance point that satisfies request.
If do not use video code translator in the described session, perhaps used video code translator, and described video code translator can not be adjusted to video coding the frame per second and the resolution of request, then MGW will report MGCF to described frame per second and image resolution ratio balance request, by MGCF described frame per second and image resolution ratio balance request are sent to H.324 multimedia telephone terminal of CS side, by the CS side H.324 multimedia telephone terminal described frame per second and image resolution ratio are carried out balance.As shown in Figure 4, concrete steps are:
Session between 401-403, MGW foundation and the MGCF, MGCF indication MGW detects the frame per second and the image resolution ratio quality information of RTCP feedback;
404-406, when IMS side multimedia telephone terminal detects the indication of frame per second and image resolution ratio information, will feed back described frame per second and image resolution ratio quality information by the TMMBR request of RTCP, wherein, comprise frame per second rank parameter in the described quality information;
407-408, MGW H.248 to offer MGCF in form, wherein, comprise described frame per second rank parameter with the quality information of IMS side multimedia telephone terminal feedback in the described quality information;
409-410, MGW send frame per second rank confirmation to IMS side multimedia telephone terminal;
The frame per second class information that comprises in the information that 411-412, MGCF report according to MGW, feed back to H.324 multimedia telephone terminal of CS side by flow-control command H.245, CS side H.324 multimedia telephone terminal is dynamically adjusted frame per second and image resolution ratio according to the frame per second rank.
Embodiment three:
When IMS side multimedia telephone terminal detects packet loss above upper limit threshold, will give MGW detected quality information feedback, after MGW receives described quality information, at first judge whether and can adjust communication quality according to described packet loss.
If can adjust communication quality according to described packet loss, then MGW self just can handle video, and described packet loss is converted to bandwidth information, according to described bandwidth information coding and frame per second is made amendment.
If can not adjust communication quality according to described packet loss, then MGW will be converted to bandwidth information to described packet loss and give MGCF by information reporting H.248, by MGCF with described maximum bandwidth information by H.245 feeding back to H.324 multimedia telephone terminal of CS side, by the CS side H.324 multimedia telephone terminal according to described bandwidth information coding and frame per second are made amendment.As shown in Figure 5, concrete steps are:
Session between 501-503, MGW foundation and the MGCF, MGCF indication MGW detects the packet loss threshold quality information of RTCP feedback, when carrying out the indication of described packet loss event detection, the threshold value of packet loss reporting events can carry by the incident bag, also can obtain by configuration mode;
504-505, IMS side multimedia telephone terminal periodically send the RTCP report to MGW, and MGW obtains the packet loss of terminal, and wherein, described RTCP report comprises RR (receiving report) and SR (sending report);
506-507, MGW are according to described packet loss reporting events threshold value, and the packet loss that RTCP is reported compares, and whether decision reports the quality incident, and report proposed bandwidth value with form H.248 to MGCF according to packet loss.For example: the current sessions bandwidth is 50Kbps, if packet loss reaches 20%, advises that then the bandwidth value that uses is 40Kbps;
508-509, MGCF to the CS side H.324 multimedia telephone terminal send H.245 order, indication CS side H.324 multimedia telephone terminal is encoded and modification such as frame per second;
510, CS side multimedia telephone terminal and in described intercommunication process, encoding and modification such as frame per second H.324.
Embodiment four:
IMS side multimedia telephone terminal may detect the situation that buffering area is lower than lower threshold or is higher than upper limit threshold when buffer information is detected.
IMS side multimedia telephone terminal may detect the situation that buffering area is lower than lower threshold or is higher than upper limit threshold when buffer information is detected.At this moment, IMS side multimedia telephone terminal will be given MGW this quality information feedback.
When described quality information is a buffering area when being lower than lower threshold or being higher than upper limit threshold, if MGW self can carry out the adjustment of buffering area, then MGW will reduce transmission rate or recover transmission rate according to described buffer information.
If MGW can not carry out the adjustment of buffering area, MGW will report MGCF to described buffer information, by MGCF to the CS side H.324 multimedia telephone terminal send request, by the CS side H.324 multimedia telephone terminal adjust bandwidth according to described buffer information, thereby finish the dynamic adjustment of buffering area.As shown in Figure 6, concrete steps are:
601-602, MGCF indication MGW detects the buffer information and the average receiving velocity of IMS multimedia terminal feedback;
If IMS side multimedia telephone terminal will detect buffer information by RTCP and MGW (not shown this step) is given in average receiving velocity quality information feedback;
603, MGW detects the buffer information and the Mean Speed of IMS side multimedia telephone terminal feedback, if exceed self adjustable range, can not carry out the adjustment of buffering area, need request CS side H.324 multimedia telephone terminal realize the adjusting of quality of the conversation in the Flow Control mode;
604-605, MGW report request Flow Control incident with form H.248 to MGCF, comprise the proposed bandwidth value in the described request, and this numerical value can according to buffer information and average receiving belt be wide estimate.For example: when buffering area is about to overflow, and Mean Speed is when equaling v, and MGW will advise a rate value less than v; If buffering area is about to underflow, with rate value that is higher than v of suggestion;
606-607, MGCF with form H.245 to the CS side H.324 multimedia telephone terminal send information, indication CS side H.324 multimedia telephone terminal is carried out bandwidth and is revised.
In four embodiment of multimedia telephone intercommunication method of the present invention, can not have MGW to judge and self can dynamically adjust this step to communication quality, and directly described quality information is reported MGCF according to described quality information.
Need to prove, in IMS side multimedia telephone terminal and CS side H.324 under the situation of multimedia telephone terminal intercommunication, the detected quality information of IMS side multimedia telephone terminal is at least one in the information such as maximum bandwidth request, frame per second rank parameter, packet loss, buffer information, if so comprise a plurality of above information in the quality information, then can carry out the flow process of this information respective embodiments simultaneously, repeat no more here.
Thereby, utilize the embodiments of the invention multimedia telephone intercommunication method, can carry out dynamic adaptation to multimedia interconnection according to the quality information that IMS side multimedia telephone terminal feedback is come, and then improve the communication quality in the multimedia telephone intercommunication.
Embodiments of the invention also provide a kind of media gateway, and this media gateway can improve the communication quality in the multimedia telephone intercommunication.
As shown in Figure 7, described media gateway comprises:
Receiving element 1 is used to receive the quality information that IMS side multimedia telephone terminal feedback is come;
Adjustment unit 2 is used for according to described quality information communication quality dynamically being adjusted.
The embodiments of the invention media gateway, receiving element 1 can obtain the quality information that IMS side multimedia telephone terminal feedback is come at any time, and take different measures according to described quality information, communication quality is dynamically adjusted according to described quality information by adjustment unit 2.Compared with prior art, IMS side multimedia telephone terminal occurs or detected quality information, can feed back to adjustment unit 2 in time, all sidedly, according to described quality information communication quality dynamically be adjusted by adjustment unit 2, and then the communication quality in the raising multimedia telephone intercommunication.
Wherein, described adjustment unit 2 also comprises:
First adjustment unit 3 is used for by media gateway self communication quality dynamically being adjusted;
Second adjustment unit 4 is used for that described quality information is reported Media Gateway Controller and dynamically adjusts.
After receiving element 1 receives the quality information that IMS side multimedia telephone terminal feedback comes, can select communication quality dynamically to be adjusted by media gateway self, perhaps described quality information is reported Media Gateway Controller and dynamically adjust.
In order to select to be adjusted by first adjustment unit 3 or 4 pairs of communication qualities of second adjustment unit, described media gateway also comprises:
Judging unit 5, be used to judge that can media gateway self dynamically adjust communication quality according to described quality information, if described media gateway self can not dynamically be adjusted communication quality, then notify second adjustment unit 4 that described quality information is reported Media Gateway Controller and dynamically adjust.
Wherein, described quality information is: maximum bandwidth request, frame per second and image resolution ratio balance request, packet loss, buffer information.
Thereby, utilizing the embodiments of the invention media gateway, can dynamically adjust the communication quality in the multimedia interconnection according to the quality information that IMS side multimedia telephone terminal feedback is come, and then the communication quality in the raising multimedia telephone intercommunication.
Embodiments of the invention also provide a kind of Media Gateway Controller, and this Media Gateway Controller can improve the communication quality in the multimedia telephone intercommunication.
As shown in Figure 8, described Media Gateway Controller comprises:
Accept unit 6, be used to accept the quality information of medium gateway to report;
Feedback unit 7 is used for dynamically adjusting to CS side multimedia telephone terminal described quality information feedback.
The embodiments of the invention Media Gateway Controller, when media gateway can not dynamically be adjusted communication quality according to the quality information that described IMS side multimedia telephone terminal feedback is come, to report gateway controller to described quality information, after accepting quality information that unit 6 receives medium gateway to report, dynamically adjust to CS side multimedia telephone terminal described quality information feedback by feedback unit 7.Compared with prior art, gateway controller receiving media gateway at any time feeds back the quality information of coming and dynamically adjusts, and then improves the communication quality in the multimedia telephone intercommunication.
Embodiments of the invention also provide a kind of multimedia telephone intercommunication system, and this system can improve the communication quality in the multimedia telephone intercommunication.
As shown in Figure 9, described system comprises:
Media gateway is used to receive the quality information that IMS side multimedia telephone terminal feedback is come, and according to described quality information communication quality is dynamically adjusted;
Media Gateway Controller is used for the quality information that the receiving media gateway reports, and dynamically adjusts to CS side multimedia telephone terminal described quality information feedback.
Embodiments of the invention multimedia telephone intercommunication system, media gateway can be obtained the quality information that IMS side multimedia telephone terminal feedback is come at any time, and take different measures according to described quality information, by media gateway communication quality is dynamically adjusted, perhaps described quality information is reported Media Gateway Controller, dynamically adjust to CS side multimedia telephone terminal described quality information feedback by Media Gateway Controller.Compared with prior art, IMS side multimedia telephone terminal occurs or detected quality information, can feed back to media gateway in time, all sidedly, and communication quality dynamically be adjusted according to described quality information, and then the communication quality in the raising multimedia telephone intercommunication.
The above; it only is the embodiment of the embodiment of the invention; but the protection range of the embodiment of the invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, the protection range of the embodiment of the invention should be as the criterion with the protection range of claim.
Claims (17)
1, a kind of multimedia telephone intercommunication method is characterized in that, under the scene of IMS mediaphone and CS multimedia telephone intercommunication, described method comprises the steps:
Media gateway receives the quality information that IMS side multimedia telephone terminal feedback is come;
Media gateway is dynamically adjusted communication quality according to described quality information.
2, multimedia telephone intercommunication method according to claim 1 is characterized in that, the step that described media gateway is dynamically adjusted communication quality according to described quality information is specially:
Self dynamically adjusts media gateway communication quality; Or
Media gateway reports Media Gateway Controller with described quality information and dynamically adjusts.
3, multimedia telephone intercommunication method according to claim 2 is characterized in that, described quality information is at least one in maximum bandwidth request, frame per second and image resolution ratio balance request, packet loss, the buffer information.
4, multimedia telephone intercommunication method according to claim 3 is characterized in that, when described quality information was the maximum bandwidth request, the step that described media gateway is dynamically adjusted communication quality self was specially:
Media gateway is adjusted the video transmission rate according to described maximum bandwidth request.
5, multimedia telephone intercommunication method according to claim 3 is characterized in that, when described quality information was the maximum bandwidth request, described media gateway reported the step that Media Gateway Controller dynamically adjusts with described quality information and is specially:
Media gateway reports Media Gateway Controller with described maximum bandwidth information;
Media Gateway Controller is given CS side multimedia telephone terminal with described maximum bandwidth feedback information, dynamically adjusts video coding by CS side multimedia telephone terminal according to described maximum bandwidth information.
6, multimedia telephone intercommunication method according to claim 3 is characterized in that, when described quality information was frame per second and image resolution ratio balance request, the step that described media gateway is dynamically adjusted communication quality self was specially:
Media gateway is according to described frame per second and image resolution ratio balance request, frame per second and image resolution ratio is adjusted to the poised state of request.
7, multimedia telephone intercommunication method according to claim 3, it is characterized in that, when described quality information was frame per second and image resolution ratio balance request, described media gateway reported the step that Media Gateway Controller dynamically adjusts with described quality information and is specially:
Media gateway reports Media Gateway Controller with described frame per second and image resolution ratio balance request;
Media Gateway Controller feeds back to CS side multimedia telephone terminal with described frame per second and image resolution ratio balance request, according to described frame per second and image resolution ratio balance request, frame per second and image resolution ratio are adjusted to the poised state of request by CS side multimedia telephone terminal.
8, multimedia telephone intercommunication method according to claim 3 is characterized in that, when described quality information was packet loss, the step that described media gateway is dynamically adjusted communication quality self was specially:
Media gateway is converted to bandwidth information with described packet loss, according to described bandwidth information coding and frame per second is made amendment.
9, multimedia telephone intercommunication method according to claim 3 is characterized in that, when described quality information was packet loss, described media gateway reported the step that Media Gateway Controller dynamically adjusts with described quality information and is specially:
Media gateway is converted to bandwidth information with described packet loss and reports Media Gateway Controller;
Media Gateway Controller feeds back to CS side multimedia telephone terminal with described bandwidth information, coding and frame per second is made amendment according to described bandwidth information by CS side multimedia telephone terminal.
10, multimedia telephone intercommunication method according to claim 3 is characterized in that, when described quality information was buffer information, the step that described media gateway is dynamically adjusted communication quality self was specially:
Media gateway reduces transmission rate or recovers transmission rate according to described buffer information.
11, multimedia telephone intercommunication method according to claim 3 is characterized in that, when described quality information was buffer information, described media gateway reported the step that Media Gateway Controller dynamically adjusts with described quality information and is specially:
Media gateway reports Media Gateway Controller with described buffer information;
Media Gateway Controller feeds back to CS side multimedia telephone terminal with described buffer information, is reduced transmission rate or recovers transmission rate according to described buffer information by CS side multimedia telephone terminal.
12, according to each described multimedia telephone intercommunication method in the claim 2 to 11, it is characterized in that, before described media gateway reports described quality information the step that Media Gateway Controller dynamically adjusts, also comprise the steps:
Can the media gateway judgement self dynamically be adjusted communication quality according to described quality information, if media gateway self can not dynamically be adjusted communication quality, then described quality information reported Media Gateway Controller and dynamically adjust.
13, a kind of media gateway is characterized in that, comprising:
Receiving element is used to receive the quality information that IMS side multimedia telephone terminal feedback is come;
Adjustment unit is used for according to described quality information communication quality dynamically being adjusted.
14, media gateway according to claim 13 is characterized in that, described adjustment unit comprises:
First adjustment unit is used for by media gateway self communication quality dynamically being adjusted;
Second adjustment unit is used for that described quality information is reported Media Gateway Controller and dynamically adjusts.
15, media gateway according to claim 14 is characterized in that, described media gateway also comprises:
Judging unit, be used to judge that can media gateway self dynamically adjust communication quality according to described quality information, if described media gateway self can not dynamically be adjusted communication quality, then notify second adjustment unit that described quality information is reported Media Gateway Controller and dynamically adjust.
16, a kind of Media Gateway Controller is characterized in that, comprising:
Accept the unit, be used to accept the quality information of medium gateway to report;
Feedback unit is used for dynamically adjusting to CS side multimedia telephone terminal described quality information feedback.
17, a kind of multimedia telephone intercommunication system is characterized in that, comprising:
Media gateway is used to receive the quality information that IMS side multimedia telephone terminal feedback is come, and according to described quality information communication quality is dynamically adjusted;
Media Gateway Controller is used for the quality information that the receiving media gateway reports, and dynamically adjusts to CS side multimedia telephone terminal described quality information feedback.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810090253 CN101552771B (en) | 2008-03-31 | 2008-03-31 | Media gateway, media gateway controller, multimedia telephone intercommunication method and system |
| ES09726792T ES2389688T3 (en) | 2008-03-31 | 2009-03-24 | Multimedia gateway, multimedia gateway controller, method and system for multimedia phone communication |
| EP09726792A EP2264959B1 (en) | 2008-03-31 | 2009-03-24 | Media gateway, media gateway controller, method and system for communication of multimedia phones |
| PCT/CN2009/070962 WO2009121272A1 (en) | 2008-03-31 | 2009-03-24 | Media gateway, media gateway controller, method and system for communication of multimedia phones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810090253 CN101552771B (en) | 2008-03-31 | 2008-03-31 | Media gateway, media gateway controller, multimedia telephone intercommunication method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101552771A true CN101552771A (en) | 2009-10-07 |
| CN101552771B CN101552771B (en) | 2013-11-06 |
Family
ID=41156764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810090253 Active CN101552771B (en) | 2008-03-31 | 2008-03-31 | Media gateway, media gateway controller, multimedia telephone intercommunication method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101552771B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348781A (en) * | 2013-07-26 | 2015-02-11 | 中兴通讯股份有限公司 | Multimedia service transmission method and terminal equipment |
| CN106507024A (en) * | 2016-11-17 | 2017-03-15 | 北京数码视讯技术有限公司 | A kind of self-adaption code rate method of adjustment and device |
| CN108023869A (en) * | 2016-10-28 | 2018-05-11 | 海能达通信股份有限公司 | Parameter regulation means, device and the mobile terminal of multimedia communication |
| US10085050B2 (en) | 2014-08-15 | 2018-09-25 | Xiaomi Inc. | Method and apparatus for adjusting video quality based on network environment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988714A (en) * | 2005-12-22 | 2007-06-27 | 中兴通讯股份有限公司 | End call network selecting system and end call network selecting method |
| US7817648B2 (en) * | 2006-08-04 | 2010-10-19 | Nokia Corporation | Interworking control between different communication parties |
-
2008
- 2008-03-31 CN CN 200810090253 patent/CN101552771B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348781A (en) * | 2013-07-26 | 2015-02-11 | 中兴通讯股份有限公司 | Multimedia service transmission method and terminal equipment |
| US10085050B2 (en) | 2014-08-15 | 2018-09-25 | Xiaomi Inc. | Method and apparatus for adjusting video quality based on network environment |
| CN108023869A (en) * | 2016-10-28 | 2018-05-11 | 海能达通信股份有限公司 | Parameter regulation means, device and the mobile terminal of multimedia communication |
| CN108023869B (en) * | 2016-10-28 | 2021-03-19 | 海能达通信股份有限公司 | Parameter adjusting method and device for multimedia communication and mobile terminal |
| CN106507024A (en) * | 2016-11-17 | 2017-03-15 | 北京数码视讯技术有限公司 | A kind of self-adaption code rate method of adjustment and device |
| CN106507024B (en) * | 2016-11-17 | 2019-04-02 | 北京数码视讯技术有限公司 | A kind of self-adaption code rate method of adjustment and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101552771B (en) | 2013-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1719302B8 (en) | Fast signalling procedure for streaming services quality of service managing in wireless networks | |
| KR100705432B1 (en) | Streaming media | |
| JP4927333B2 (en) | Bandwidth adaptation | |
| CN101483494B (en) | Method and system for encoding and decoding algorithm dynamic negotiation of SIP terminal | |
| EP3866474B1 (en) | Video self-adaptation method, related device and storage medium | |
| CN102256101B (en) | A kind of conversion method of media capability in video conference, system and application server | |
| KR20140104961A (en) | Congestion induced video scaling | |
| KR20180031016A (en) | Downside of the transmitter side video phone | |
| WO2010037293A1 (en) | Method and system for improving quality of multimedia calls, media controlling equipment and media processing equipment | |
| CA2461838C (en) | Auto-compression for media over ip | |
| CN101651815B (en) | Visual telephone and method for enhancing video quality by utilizing same | |
| CN101552771B (en) | Media gateway, media gateway controller, multimedia telephone intercommunication method and system | |
| EP2266231B1 (en) | Coversational interactivity measurement and estimation for real-time media | |
| CN107770473B (en) | Audio and video data transmission control method and device | |
| EP2264959B1 (en) | Media gateway, media gateway controller, method and system for communication of multimedia phones | |
| CN111526163B (en) | ViLTE video call quality control system and method | |
| CN109982023B (en) | Resolution adjustment method in video session | |
| Pyun | Context-aware streaming video system for vertical handover over wireless overlay network | |
| CN101515974B (en) | Method, equipment and VG for detecting VoIP channel and switching PSTN backup | |
| Lundan et al. | 3GPP streaming over GPRS rel'97 | |
| WO2014087764A1 (en) | Terminal and communication system | |
| Zhu et al. | Research on adaptive transmission of H. 264 video stream and QoS guarantee based on SIP | |
| Curcio | QoS Aspects of Mobile Multimedia Applications | |
| Hammi et al. | Dynamic rate control in wireless video communications | |
| Velev et al. | TCP-friendly streaming in next generation wireless networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |