CN1494288A - Method of realizing multiplex sound reproduction simultaneously in conference through MEGACO protocol - Google Patents
Method of realizing multiplex sound reproduction simultaneously in conference through MEGACO protocol Download PDFInfo
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- CN1494288A CN1494288A CNA021450056A CN02145005A CN1494288A CN 1494288 A CN1494288 A CN 1494288A CN A021450056 A CNA021450056 A CN A021450056A CN 02145005 A CN02145005 A CN 02145005A CN 1494288 A CN1494288 A CN 1494288A
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Abstract
The method includes following steps. The media gateway as a conference server uses 'adding' command on context of conference mixing point to create number of terminal points equal to number of users taking part to conference. Voice media flows of all users in conference are gathered and mixed in the mixing point. Controller of media gateway through 'adding' command on context creates new terminal points. Controller of media gateway sends 'modifier' command to new terminal points to carry out operation of playing sound back. The invention reduces flux of protocol message by using existed resources in conference procedure so as to save operation time and resources of playing sound back.
Description
Technical field
The present invention relates to communication technical field, relate in particular to and pass through megaco protocol and in meeting, realize simultaneous multichannel playing.
Background technology
MEGACO (Media Gateway Control, i.e. media gateway controlling) agreement is the internet engineering service groups RFC3015 agreement of (The Internet Engineering Task Force is called for short IETF).
Be illustrated in figure 1 as the system group network figure that realizes megaco protocol.Megaco protocol has adopted separation gateway thought, and the gateway that former signaling and medium are focused on is decomposed into two parts: media gateway (Media Gateway is called for short MG) and Media Gateway Controller (Media Gateway Controller, abbreviation MGC).The MGC processing signaling, MG handles medium, the action of MGC control MG.From being a kind of master/slave (master/slave) relation in essence with MEGACO, send the order that will carry out by MGC to MG, MG gives MGC with the information reporting of being collected.MGC is equivalent to main (master), and MG is equivalent to from (slave).MGC distributes to the MG specific tasks, and handles the request that MG submits.MGC and MG are the network elements in the network, carry out communication by megaco protocol between they are mutual.
MGC in the megaco protocol and the logical relation between the MG represent that by link model two members the most basic are exactly context (Context) and destination node (Termination) in the link model.Wherein the annexation and the topological relation of destination node (Termination) represented in context (Context).
Main order between MGC and the MG comprises increase (ADD), revises (MODIFY) deletion (SUBTRACT), notice (NOTIFY) etc.
Playback is meant in call treatment, for certain service needed, carries out speech play for the calling party, as the voice suggestion of intelligent network.In conference system, a kind of special playback business demand is arranged, promptly play identical voice simultaneously for the speech channel in many ways that participates in a conference.Fig. 2 shows the existing method that megaco protocol is implemented in simultaneous multichannel playing in the meeting of passing through, as shown in the figure, in a meeting, suppose to have three media gateway MG1, MG2, MG3 among meeting, media gateway MG4 is a Conference server, its X point is the audio mixing point, the audio mixing point makes in the meeting all user's voice Media Streams that need playback assemble and audio mixing, media gateway MG1, MG2, MG3 corresponding context in Conference server MG4 is Ctx1, and three corresponding destination nodes are A, B, C.Traditional audio playback method to three users on media gateway MG1, MG2, the MG3 is to use modification (MODIFY) order to play same a kind of voice respectively to MG1, MG2, MG, so media gateway MG1, MG2, three users of MG3 hear same voice respectively.Adopt said method to need media gateway controller MGC that MG1, MG2, MG3 are carried out playback operation with revising order (MODIFY) order respectively.Need use 3 to revise order (MODIFY) order so respectively, and take 3 playback resources at needs, both complicated operation took more resource again.
Summary of the invention
The objective of the invention is in order to overcome the complicated operation that exists when the existing MEGACO of passing through realizes simultaneous multichannel playing in meeting, the technical problem that takies more resource.
The technical scheme that realizes technical problem to be solved by this invention and take is summarized as follows, and a kind of megaco protocol is realized simultaneous multichannel playing in meeting method of passing through is provided, and may further comprise the steps:
(1) uses on the context at the audio mixing point place of meeting as the media gateway of Conference server and increase order and create destination node with the number of users equal amount of conference participation, make that all user's voice Media Streams gather also audio mixing of audio mixing point in the meeting;
(2) Media Gateway Controller is created new destination node by increasing order on the context at described audio mixing point place;
(3) Media Gateway Controller is gone up new destination node to described audio mixing point and is sent the modification order, carries out playback operation.
Simultaneously, provide another kind to pass through megaco protocol is realized simultaneous multichannel playing in meeting method, may further comprise the steps:
(1) uses on the context at the audio mixing point place of meeting as the media gateway of Conference server and increase order and create destination node with the number of users equal amount of conference participation, make that all user's voice Media Streams gather also audio mixing of audio mixing point in the meeting;
(2) Media Gateway Controller is created new destination node by increasing order on the context at described audio mixing point place;
(3) Media Gateway Controller sends the playback Media Stream by the media server at modification order control playback resource place and the tie point of Conference server to the upward new destination node of described audio mixing point, carries out playback operation.
Adopt technical solution of the present invention, utilized the resource that has existed in the conference process to carry out playback, reduced the protocol message flow between the MGC and MG in the conference process, saved the operating time, and saved the playback resource.
Description of drawings
Fig. 1 shows the networking diagram of megaco protocol system;
Fig. 2 shows the existing schematic diagram of realizing simultaneous multichannel playing;
Fig. 3 shows a kind of execution mode schematic diagram that the present invention realizes simultaneous multichannel playing;
Fig. 4 shows the another kind of execution mode schematic diagram that the present invention realizes simultaneous multichannel playing.
Embodiment
Below in conjunction with accompanying drawing, illustrate the mode of concrete enforcement of the present invention.
In the meeting control procedure, need carry out the while during playback operation to a certain certain customers pairing destination node (Termination), in the present invention, all these destination nodes are not carried out playback operation, but create a destination node again at audio mixing point as this meeting of the media gateway of Conference server, then this destination node is carried out playback.Other destination nodes because and this destination node in a context, so the pairing user of other destination nodes also can hear the playback signal.
Its specific implementation is that MGC passes through to increase the context of (ADD) order control as the audio mixing point place on the media gateway MG4 of Conference server, produce a new destination node Z at this context, send to new destination node Z by MGC then and revise order (MODIFY), to the playback of audio mixing point.
Figure 3 shows that the schematic diagram of a kind of execution mode of simultaneous multichannel playing method of the present invention, promptly create a new destination node Z again by increasing (ADD) order among the context Ctx1 at the audio mixing point X point place in Conference server MG4, revise (MODIFY) order by new destination node Z is sent, carry out playback operation.Because MG1, MG2, pairing three the destination node A of three users of MG3, B, C is among conference context Ctx1, it is identical that the process of playback operation and common use megaco protocol carry out playback operation by audio mixing point X, the M point that is the playback Media Stream by MG5 sends to new destination node Z, audio medium stream flows to the audio mixing point by new destination node Z, X flows to A by audio mixing point, B, three destination nodes of C, then by A, B, three destination nodes of C flow to MG1 respectively, MG2, three users of MG3, so MG1, MG2, three users of MG3 hear voice flow respectively, thereby can hear the playback of media server MG5, finish playback operation new destination node Z.Like this for only need make amendment order (MODIFY) operation of MG1, MG2, three user's playbacks of MG3, and only take a playback resource in the Conference server MG4 to new destination node Z.
Figure 4 shows that the schematic diagram of the another kind of execution mode of simultaneous multichannel playing method of the present invention, as shown in the figure, when playback resource and Conference server during not at same physical equipment, for example playback resource is on another one media server MG5, create a new destination node Z again by increasing (ADD) order among the context Ctx1 at the audio mixing point X point place in Conference server MG4 at this moment, Media Gateway Controller sends the playback Media Stream by the media server at modification order control playback resource place and the tie point M of Conference server to described new destination node Z then, carries out playback operation.Because MG1, MG2, pairing three the destination node A of three users of MG3, B, C is among conference context Ctx1, it is identical that the process of playback operation and common use megaco protocol carry out playback operation by the audio mixing point, be that the playback Media Stream flows to audio mixing point X by new destination node Z, X flows to A by audio mixing point, B, three destination nodes of C, then by A, B, three destination nodes of C flow to MG1 respectively, MG2, three users of MG3, so MG1, MG2, three users of MG3 hear voice flow respectively, thereby can hear the playback of media server MG5, finish playback operation new destination node Z.Like this for MG1, MG2, three user's playbacks of MG3 order (MODIFY) operation of only need making amendment, and only take a playback resource to the tie point M of the media server at playback resource place and Conference server.
Although disclosed relating to, passed through megaco protocol and realize that in meeting the method for simultaneous multichannel playing carried out special description with reference to embodiment, those skilled in the art can understand, under the situation that does not depart from scope and spirit of the present invention, can carry out all conspicuous modification of form and details to it, for example, because same in the megaco protocol and the similitude of agreement H.248, the essence of technical scheme of the present invention agreement realizes that in meeting simultaneous multichannel playing is suitable equally for using H.248.Therefore, embodiment described above is illustrative and not restrictive, and under the situation that does not break away from the spirit and scope of the present invention, all variations and modification are all within the scope of the present invention.
Claims (2)
1, pass through megaco protocol is realized simultaneous multichannel playing in meeting method, it is characterized in that may further comprise the steps:
(1) uses on the context at the audio mixing point place of meeting as the media gateway of Conference server and increase order and create destination node with the number of users equal amount of conference participation, make that all user's voice Media Streams gather also audio mixing of audio mixing point in the meeting;
(2) Media Gateway Controller is created new destination node by increasing order on the context at described audio mixing point place;
(3) Media Gateway Controller is gone up new destination node to described audio mixing point and is sent the modification order, carries out playback operation.
2, pass through megaco protocol is realized simultaneous multichannel playing in meeting method, it is characterized in that may further comprise the steps:
(1) uses on the context at the audio mixing point place of meeting as the media gateway of Conference server and increase order and create destination node with the number of users equal amount of conference participation, make that all user's voice Media Streams gather also audio mixing of audio mixing point in the meeting;
(2) Media Gateway Controller is created new destination node by increasing order on the context at described audio mixing point place;
(3) Media Gateway Controller sends the playback Media Stream by the media server at modification order control playback resource place and the tie point of Conference server to the upward new destination node of described audio mixing point, carries out playback operation.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007006191A1 (en) * | 2005-07-11 | 2007-01-18 | Huawei Technologies Co., Ltd. | A sound reproduction method for the session and the apparatus thereof |
CN100407854C (en) * | 2004-07-31 | 2008-07-30 | 华为技术有限公司 | Announcement Method in Wideband Code Division Multiple Access Communication System |
CN100442877C (en) * | 2006-08-21 | 2008-12-10 | 华为技术有限公司 | A method and system for realizing cluster communication service |
WO2008148340A1 (en) * | 2007-06-02 | 2008-12-11 | Huawei Technologies Co., Ltd. | Resources reservation method and device |
CN100461878C (en) * | 2005-06-17 | 2009-02-11 | 华为技术有限公司 | Method for Realizing Media Gateway Control Protocol Announcement |
CN1770759B (en) * | 2004-11-05 | 2010-09-01 | 中兴通讯股份有限公司 | Method for holding uniformity of media gateway controller and resource state on media gateway |
CN101867482A (en) * | 2010-06-21 | 2010-10-20 | 中兴通讯股份有限公司 | Method, equipment and system for realizing playback of meeting members in media meeting |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US5440624A (en) * | 1992-11-10 | 1995-08-08 | Netmedia, Inc. | Method and apparatus for providing adaptive administration and control of an electronic conference |
ATE364203T1 (en) * | 1997-11-04 | 2007-06-15 | Collaboration Properties Inc | DIVISABLE, NETWORKED MULTIMEDIA SYSTEMS AND APPLICATIONS |
GB0005426D0 (en) * | 2000-03-08 | 2000-04-26 | Ericsson Telefon Ab L M | Signalling in a telecommunications network |
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2002
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100407854C (en) * | 2004-07-31 | 2008-07-30 | 华为技术有限公司 | Announcement Method in Wideband Code Division Multiple Access Communication System |
CN1770759B (en) * | 2004-11-05 | 2010-09-01 | 中兴通讯股份有限公司 | Method for holding uniformity of media gateway controller and resource state on media gateway |
CN100461878C (en) * | 2005-06-17 | 2009-02-11 | 华为技术有限公司 | Method for Realizing Media Gateway Control Protocol Announcement |
WO2007006191A1 (en) * | 2005-07-11 | 2007-01-18 | Huawei Technologies Co., Ltd. | A sound reproduction method for the session and the apparatus thereof |
CN100452892C (en) * | 2005-07-11 | 2009-01-14 | 华为技术有限公司 | Method for carrying out playback on conversation |
US8036209B2 (en) | 2005-07-11 | 2011-10-11 | Huawei Technologies Co., Ltd. | Method and apparatus for announcement for session |
CN100442877C (en) * | 2006-08-21 | 2008-12-10 | 华为技术有限公司 | A method and system for realizing cluster communication service |
WO2008148340A1 (en) * | 2007-06-02 | 2008-12-11 | Huawei Technologies Co., Ltd. | Resources reservation method and device |
CN101867482A (en) * | 2010-06-21 | 2010-10-20 | 中兴通讯股份有限公司 | Method, equipment and system for realizing playback of meeting members in media meeting |
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