CN101651551A - Conference system and method for controlling flow directions of media stream in conference - Google Patents
Conference system and method for controlling flow directions of media stream in conference Download PDFInfo
- Publication number
- CN101651551A CN101651551A CN200810142368A CN200810142368A CN101651551A CN 101651551 A CN101651551 A CN 101651551A CN 200810142368 A CN200810142368 A CN 200810142368A CN 200810142368 A CN200810142368 A CN 200810142368A CN 101651551 A CN101651551 A CN 101651551A
- Authority
- CN
- China
- Prior art keywords
- media stream
- conference
- meeting
- media
- message
- 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
Landscapes
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention relates to a conference system and a method for controlling flow directions of a media stream in conference. The conference system comprises a media gateway, a call agent, a terminal anda conference agent server. The method comprises the following steps that: a conference site is created on a conference media agent server; the conference media agent server establishes connection between the conference site and a conference member terminal; and if the conference member terminal needs to adjust the flow direction of the media stream, the call agent informs the media gateway to adjust the conference media agent server to forward the flow direction of the media stream and the conference media agent server forwards the subsequent media stream via the adjusted flow direction of the media stream. The system and the method flexibly adjust the flow direction of the media stream according to various voice requirements of the conference members on a conference in the conference, meet the requirement on the realization of multiple voice functions in the conference at present, and do not occupy the self resource of the MG.
Description
Technical field
The present invention relates to the network communications technology, in particular, is a kind of conference system and the method for controlling the Media Stream flow direction in meeting.
Background technology
MGCP (Media Gateway Control Protocol, MGCP) be at simple network management monitoring protocol (Simple Gateway Control Protocol, SGCP) and the procotol Equipment Control (Internet Protocol Device Control forms on basis IPDC).What MGCP adopted is the thought that gateway separates, and signaling and medium are separated into two parts: Call Agent (Call Agent, CA) and media gateway (Media Gateway, MG), the CA processing signaling, MG handles medium, CA controls the action of MG.CA mainly finishes the controlled function of traffic signaling, and MG then mainly finishes the processing capacity of Media Stream, to realize voice communication.
The call model of MGCP comprises link model and calls out controlling models.The most important notion of link model is an end points and be connected, and calls out in the controlling models and the most important thing is incident and signal.MGCP by to end points be connected event and signal and detect and differentiate, the Media Stream of controlling each end points in the whole calling procedure to.So just can be that a member creates a connection under a MG, also can also can a plurality of members between a plurality of MG create a plurality of connections for a plurality of members create a plurality of connections.
Exactly because this call model of MGCP, MGCP can be for connecting between a plurality of members under the MG end points, as shown in Figure 1: between member A and member B, connect, suppose that the Media Stream that member A receives identifies with RA, the Media Stream that member A sends identifies with SA, member A can be conversed, then necessary RA=SB, RB=SA with member B; MGCP also can be for connecting between a plurality of members under a plurality of MG end points, as shown in Figure 2: connect between member A and member C, enable to communicate with each other, RA=SC then, RC=SA.Same MGCP also can make a plurality of members that are in the same meeting communicate with each other for providing the Multi-Party Conference function based on the member under the MGCP end points.In same meeting, the Media Stream that each conference member receives all is the mixing of media streams that other conference members send, as shown in Figure 3: member A, member B and member C are in the meeting, MG has set up a plurality of connections in this meeting, RA=SB+SC so, RB=SA+SC, RC=SA+SB, member A, member B and member C just can hear the speech of other two sides except that own like this.
Along with this function of multimedia conferencing is used in multiple occasion, and various occasions have also proposed multiple requirement to meeting, the user is not only that requirement can be carried out meeting, require equally in meeting, can accomplish the voice of conference member are controlled, in the hope of can be more near the effect of real meetings.But at present MGCP can not meeting always control well Media Stream to, can't satisfy some special demands, the limitation that has caused present meeting to be used.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of conference system and the control Media Stream flows in meeting method, and the Media Stream that the present invention can effectively control under the situation of the resource that does not take MG in the meeting flows to.
A kind of conference system, comprise MG, CA and terminal, connect by transmission network between described MG, CA and the terminal, also comprise an IMS conference medium acting server (Conference Media Proxy Server, CMPS), described CMPS is used to the meeting of holding in described conference system that the Conference Room is provided and for described Conference Room connects with belonging between the terminal under this Conference Room, and the control forwarding Media Stream that is subjected to described MG.
Described Conference Room has unique identifier, is used to identify its affiliated meeting.
Terminal under the described Conference Room has unique identifier, is used to identify its affiliated Conference Room.
A kind of method that the control Media Stream flows in meeting said method comprising the steps of:
Step 1: on CMPS, create the Conference Room;
Step 2: between described Conference Room and meeting member terminal, connect;
Step 3: flow to if described conference member terminal need be adjusted Media Stream, then CA notice MG adjusts the flow direction that CMPS transmits Media Stream, and CMPS flows to adjusted Media Stream and transmits follow-up Media Stream.
Described step 1 also comprises:
Step a: for setting up unique identifier in described Conference Room;
Step b: for the member terminal of described meeting is set up unique identifier.
Create with the employing Rout message mechanism that is connected between the described conference member terminal described Conference Room.
Media Stream direction in the described connection of step 2 is defaulted as two-way transmission.
Described step 3 specifically comprises:
Steps A: described member terminal sends adjusts the request of Media Stream direction to described CA, carries the starting point and the endpoint parameter of the Media Stream that needs adjustment in the described request;
Step B: described CA determines to need to adjust the member terminal and the adjusted Media Stream flow direction that Media Stream flows to, by the MG control protocol signaling message notice MG of expansion;
Step C: after described MG receives message, at first resolve described message, the described direction that needs to adjust the Media Stream of the member terminal that Media Stream flows to of CMPS distribution is set then, if success is set, then MG returns the successful incident of response and gives CA, and CMPS transmits the follow-up Media Stream of described terminal with the new flow direction; If failure is set, then MG returns the response turkey and gives CA, and CMPS continues to transmit the follow-up Media Stream of described terminal according to original Media Stream direction;
Step D:CA returns and adjusts the member terminal that response message is given the request of transmission.
Among the described step B:
If it is two-way transmission that described adjusted Media Stream flows to, then described CA is by SendRev message mechanism notice MG; If it is unidirectional transmission that adjusted Media Stream flows to, then CA is by SendOnly message mechanism notice MG; If it is unidirectional reception that adjusted Media Stream flows to, then CA is by RevOnly message mechanism notice MG; If it is not transmit that adjusted Media Stream flows to, then CA is by Close message mechanism notice MG.
The MG control protocol signaling message of the described expansion of step B comprises: message name, message body, the identifier and the adjusted Media Stream that carry the member terminal that needs the adjustment Media Stream flow direction in the described message body flow to parameter.
The present invention is by increasing resource equipment and extended medium means of signaling, realized in meeting and can require to adjust neatly the Media Stream direction to the various voice of meeting according to conference member, satisfy the various phonetic functions that present needs are realized in meeting, do not take simultaneously the MG its other resources, like this MG more other the affairs of processing that can free.
Description of drawings
Fig. 1 is following two the conference member connection diagrams of same MG;
Fig. 2 is following two the conference member connection diagrams of a plurality of MG;
Fig. 3 is based on the conference architecture schematic diagram of present MGCP;
Fig. 4 is the method for the invention flow chart;
Fig. 5 is the schematic diagram that connects between Conference Room and the conference member among the present invention;
Fig. 6 is that media stream flows to embodiment one schematic diagram in the meeting of the present invention;
Fig. 7 is that media stream flows to embodiment two schematic diagrames in the meeting of the present invention;
Fig. 8 is that media stream flows to embodiment three schematic diagrames in the meeting of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further details.
Conference system of the present invention, comprise MG, CA, terminal and CMPS, connect by transmission network between MG, CA, terminal and the CMPS, CMPS is a resource equipment, it provides an independently space for each meeting, be exclusively used in the forwarding of the Media Stream of this meeting, be that CMPS is a Media Stream terminal, be used to the meeting of in described conference system, holding that the Conference Room is provided and for described Conference Room connects with belonging between the terminal under this Conference Room, and the control forwarding Media Stream that is subjected to described MG; Described Conference Room has unique identifier, is used to identify its affiliated meeting; Terminal under the described Conference Room has unique identifier, is used to identify its affiliated Conference Room.
The method that the control Media Stream flows in meeting of the present invention is based on described MG realization, and described method flow specifically may further comprise the steps as shown in Figure 4:
S01:MG is Conference Room of conference creation on CMPS;
During conference creation, MG creates a Conference Room simultaneously on CMPS, and identify this meeting with unique identifier, as shown in Figure 5, member A, member B and member C have created a meeting, suppose that this Conference ID is 1, then in CMPS for the sign of this conference creation Conference Room and comprise all members' of this meeting sign, as: conf ID:1 (userA, userB, userC);
The message of the conference member that MG also can be provided with according to CA is set up a unique identifier in the new the inside, Conference Room of creating of CMPS respectively for each member of this meeting;
S02:MG notice CMPS connects between Conference Room and conference member, and the Media Stream in the described connection flows to and is defaulted as two-way transmission;
The Media Stream direction comprises:
(1) two-way transmission: the Media Stream in the meeting between any two conference members all is two-way transmission;
(2) one-way transmission: be divided into two kinds of situations, a kind of is that certain member can only send Media Stream in the meeting; Another kind is that certain member can only flow by receiving media in the meeting;
(3) do not transmit: certain conference member can not carry out the transmitting-receiving of Media Stream in the meeting;
After Conference Room and conference member all had sign, MG notified CMPS to set up the logic route between Conference Room and the conference member and be connected according to being identified at by the mode that sends message, and the Media Stream direction in this connection is two-way transmission.As shown in Figure 5, have three logic routes among this embodiment, the present invention adopts Rout message mechanism sign to create route, it comprises two end points of connection, and Rout (conf ID:1, userA), Rout (conf ID:1, userB), Rout (conf ID:1, userC);
S3: if there is conference member need adjust the Media Stream direction, then CA determines to notify MG after the Media Stream direction, and MG is provided with the direction that the CMPS distribution media flows according to notice, and CMPS is with the follow-up Media Stream of the distribution of the Media Stream direction after being provided with; This step specifically comprises:
1) conference member need be adjusted the Media Stream direction, then sends to adjust the request of the Media Stream flow direction to CA, carries the starting point and the endpoint parameter of the Media Stream that need adjust in the described request;
2) CA determines that at first the member terminal and the adjusted Media Stream that need the adjustment Media Stream to flow to flow to, and notify MG by the MG control protocol signaling message of expansion then after receiving request;
The MGCP signaling message of described expansion comprises: message name, message body, and the identifier and the adjusted Media Stream that carry the member terminal that needs the adjustment Media Stream flow direction in the described message body flow to parameter;
If the direction of adjusted Media Stream is two-way transmission, then CA is by SendRev message mechanism notice MG, SendRev message comprises two end points of connection, whole message body is: SendRev (userA, userB), illustrate that member A and member B both can receive the other side's Media Stream, also can send Media Stream to the other side.Equally, and member A and member C:SendRev (userA, userC), between member B and the member C: SendRev (userB, userC);
If the direction of adjusted Media Stream is unidirectional transmission, then CA is by SendOnly message mechanism notice MG, CMPS carries out unidirectional forwarding to Media Stream by MG control, SendOnly message comprises two end points of connection, wherein first is a starting point, second is terminal point, terminal point can be the sign of whole meeting, also can be the some members in the meeting, illustrates that Media Stream can only flow to terminal point from starting point, as, SendOnly (userA, userB), this time, be the sound that member B can hear A, but A but can not hear the sound of B;
If adjusting the direction of back Media Stream is unidirectional reception, then CA is by RevOnly message mechanism notice MG, CMPS carries out unidirectional forwarding to Media Stream by MG control, RevOnly message comprises two end points of connection, wherein first is a starting point, second is terminal point, terminal point can be the sign of whole meeting, also can be the some members in the meeting, illustrates that starting point can receive the Media Stream that specified endpoint is come, as, RevOnly (userA, userB), this time, be the sound that member A can hear B, but member B but can not hear the sound of member A;
If adjust the direction of back Media Stream and be not transfer mode, then CA is by Close message mechanism notice MG, not transmitting also not by MG control CMPS to the Media Stream of this end points, transfer medium flows to this end points, Close message comprises the end points of conductively-closed, as, Close (userA) indicates member A and can not listen and can not say;
3) MG at first resolves this notice after receiving the notice of CA, obtain adjusting the identifier of the member terminal that Media Stream flows to and new Media Stream direction, the direction of Media Stream that CMPS distributes the member of described identifier sign is set then, if success is set, then MG returns the successful incident of response and gives CA, and media proxy server is with the new follow-up Media Stream of flow direction distribution; If failure is set, then MG returns the response turkey and gives CA, and media proxy server continues according to original Media Stream direction distribution media stream;
4) CA returns the member terminal that request response give to send request, if MG returns is turkey, then CA returns the member terminal that request failure message is given the request of transmission; If what MG returned is successfully incident, then CA returns the member terminal that the request success message is given the request of transmission.
As shown in Figure 6, be that media stream flows to embodiment one schematic diagram in the meeting of the present invention, member A can hear the conversation of member B and member C, member B and member C can converse mutually, but member B and member C can not hear the sound of member A.Then the Media Stream direction of Jian Liing just should for: SendRev (userB, userC), RevOnly (userA, conf ID:1), when MG sets by the notice of CA after CMPS goes up the flow direction of Media Stream, CMPS just according to new rule at member A, member B carries out Media Stream and transmits between the member C.
As shown in Figure 7, be that media stream flows to embodiment two schematic diagrames in the meeting of the present invention, member A can communicate with each other with member B, and member B and member C can converse mutually, but member A can hear the sound of member C, and member C then can not hear the sound of member A.Then the Media Stream direction of Jian Liing just should be SendRev (userB, userA), SendRev (userB, userC), and Sendonly (userC, userA), when MG sets by the notice of CA after CMPS goes up the flow direction of Media Stream, CMPS just according to new rule at member A, member B carries out Media Stream and transmits between the member C.
As shown in Figure 8, be that media stream flows to embodiment three schematic diagrames in the meeting of the present invention, member A can communicate with each other with member B, and member C can not converse mutually with member A and B, can not hear the sound of member A and member B.Then the Media Stream direction of Jian Liing just should for: SendRev (userB, userA), Close (userC), when MG sets by the notice of CA after CMPS goes up the flow direction of Media Stream, CMPS just according to new rule at member A, member B carries out medium and transmits between the member C.
MG carries out the message that CA sends, if run succeeded, then can return the Succ incident and give CA, and CMPS transmits Media Stream according to the new flow direction; If carry out failure, then can return the Fail incident and give CA, CMPS according to original Media Stream to transmitting medium.
The present invention realized a kind of in meeting based on MGCP control Media Stream to method, in the present communications industry, can use the present invention to realize multiple multimedia conference service flexibly.
Claims (10)
1, a kind of conference system, comprise media gateway, Call Agent and terminal, connect by transmission network between described media gateway, Call Agent and the terminal, it is characterized in that, also comprise an IMS conference medium acting server, described IMS conference medium acting server is used to the meeting of holding in described conference system that the Conference Room is provided and for described Conference Room connects with belonging between the terminal under this Conference Room, and the control forwarding Media Stream that is subjected to described media gateway.
2, conference system as claimed in claim 1 is characterized in that, described Conference Room has unique identifier, is used to identify its affiliated meeting.
3, conference system as claimed in claim 1 is characterized in that, the terminal under the described Conference Room has unique identifier, is used to identify its affiliated Conference Room.
4, a kind of method that the control Media Stream flows in meeting is characterized in that, said method comprising the steps of:
Step 1: on the IMS conference medium acting server, create the Conference Room;
Step 2: described IMS conference medium acting server connects between described Conference Room and meeting member terminal;
Step 3: flow to if described conference member terminal need be adjusted Media Stream, then Call Agent notice media gateway is adjusted the flow direction that the IMS conference medium acting server is transmitted Media Stream, and the IMS conference medium acting server flows to adjusted Media Stream and transmits follow-up Media Stream.
5, the method that the control Media Stream flows in meeting as claimed in claim 4 is characterized in that described step 1 also comprises:
Step a: for setting up unique identifier in described Conference Room;
Step b: for the member terminal of described meeting is set up unique identifier.
6, the method that the control Media Stream flows in meeting as claimed in claim 4 is characterized in that, create with the employing Rout message mechanism that is connected between the described conference member terminal described Conference Room.
7, the method that the control Media Stream flows in meeting as claimed in claim 4 is characterized in that the Media Stream direction in the described connection of step 2 is defaulted as two-way transmission.
8, the method that the control Media Stream flows in meeting as claimed in claim 4 is characterized in that described step 3 specifically comprises:
Steps A: described member terminal sends adjusts the request of Media Stream direction to described Call Agent, carries the starting point and the endpoint parameter of the Media Stream that needs adjustment in the described request;
Step B: described Call Agent is determined to need to adjust the member terminal and the adjusted Media Stream flow direction that Media Stream flows to, by the MGCP signaling message notice media gateway of expansion;
Step C: after described media gateway is received message, at first resolve described message, the described direction that needs to adjust the Media Stream of the member terminal that Media Stream flows to of IMS conference medium acting server distribution is set then, if success is set, then media gateway is returned the successful incident of response and is given Call Agent, and the IMS conference medium acting server is transmitted the follow-up Media Stream of described terminal with the new flow direction; If failure is set, then media gateway is returned the response turkey and is given Call Agent, and the IMS conference medium acting server continues to transmit the follow-up Media Stream of described terminal according to original Media Stream direction;
Step D: Call Agent returns adjusts the member terminal that response message is given the request of transmission.
9, the method that the control Media Stream flows in meeting as claimed in claim 8 is characterized in that, among the described step B:
If it is two-way transmission that described adjusted Media Stream flows to, then described Call Agent is by SendRev message mechanism notice media gateway; If it is unidirectional transmission that adjusted Media Stream flows to, then Call Agent is by SendOnly message mechanism notice media gateway; If it is unidirectional reception that adjusted Media Stream flows to, then Call Agent is by RevOnly message mechanism notice media gateway; If it is not transmit that adjusted Media Stream flows to, then Call Agent is by Close message mechanism notice media gateway.
10, the method that the control Media Stream flows in meeting as claimed in claim 8, it is characterized in that, the MGCP signaling message of the described expansion of step B comprises: message name, message body, the identifier and the adjusted Media Stream that carry the member terminal that needs the adjustment Media Stream flow direction in the described message body flow to parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101423686A CN101651551B (en) | 2008-08-12 | 2008-08-12 | Conference system and method for controlling flow directions of media stream in conference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101423686A CN101651551B (en) | 2008-08-12 | 2008-08-12 | Conference system and method for controlling flow directions of media stream in conference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101651551A true CN101651551A (en) | 2010-02-17 |
| CN101651551B CN101651551B (en) | 2012-07-04 |
Family
ID=41673681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101423686A Expired - Fee Related CN101651551B (en) | 2008-08-12 | 2008-08-12 | Conference system and method for controlling flow directions of media stream in conference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101651551B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417166C (en) * | 2002-09-28 | 2008-09-03 | 中兴通讯股份有限公司 | Method for implementing simultaneous multichannel playing in session |
| CN100463404C (en) * | 2003-06-25 | 2009-02-18 | 中兴通讯股份有限公司 | Method for implementing telephone conference service by using media resource server |
-
2008
- 2008-08-12 CN CN2008101423686A patent/CN101651551B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101651551B (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1849824B (en) | System and method for performing distributed video conferencing | |
| US8761071B2 (en) | Internet protocol radio dispatch system and method | |
| CN101346929B (en) | Method for converting between unicast sessions and a multicast session | |
| WO2017129129A1 (en) | Instant call method, device, and system | |
| CN102065076B (en) | Implementation method of SIP (Session Initiation Protocol)-based regional ground-to-air radio station voice networking system | |
| CN103188300B (en) | The methods, devices and systems of VOIP phone are realized in cloud computing environment | |
| US7643436B2 (en) | Apparatus and method for combining network conferences that are not co-located | |
| EP2675134B1 (en) | Method for transmitting data from a participant device in a session in an internet protocol (IP) system | |
| CN101427557A (en) | Network resource optimization in a video conference | |
| US20040047303A1 (en) | Apparatus, system and method for managing call requests in a communication network providing a plurality of communication services | |
| CN112565234B (en) | Cross-network transmission system and method based on WebRTC | |
| CN103634490A (en) | A gateway for the survivability of an enterprise network using SIP | |
| CN101502012A (en) | Method and system for providing a push-to-talk communication session | |
| CN104902111B (en) | A kind of method, apparatus and system established based on Web RTC multi-party call | |
| CN101110868A (en) | Method and system for multi-person voice communication based on PC and telephony | |
| US20090286523A1 (en) | Communications method between a combinational terminal and multimedia terminal | |
| CN101611589A (en) | Be used for the data segment of data flow is distributed to the method and apparatus of group with a plurality of users | |
| CN101114985B (en) | Coding/decoding transition system and method | |
| JP4492482B2 (en) | Dependent connection method, terminal and program in group communication system | |
| US10187523B2 (en) | Method and system for automatic transmission of status information | |
| US20160234384A1 (en) | Efficient allocation and usage of communication channels for text streams | |
| CN103067189B (en) | A kind of master-slave mode TeleConference Bridge based on converged communication | |
| CN101651551B (en) | Conference system and method for controlling flow directions of media stream in conference | |
| CN101453429A (en) | Multi-part communication system and method | |
| CN107948207A (en) | Rail transit broadband cluster system and communication method |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20170812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |