CN101262359B - Conference rate matching method for multi-point conference system in pure ISDN network - Google Patents
Conference rate matching method for multi-point conference system in pure ISDN network Download PDFInfo
- Publication number
- CN101262359B CN101262359B CN2007101067776A CN200710106777A CN101262359B CN 101262359 B CN101262359 B CN 101262359B CN 2007101067776 A CN2007101067776 A CN 2007101067776A CN 200710106777 A CN200710106777 A CN 200710106777A CN 101262359 B CN101262359 B CN 101262359B
- Authority
- CN
- China
- Prior art keywords
- terminal
- conference
- meeting
- rate
- mcu
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Telephonic Communication Services (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a conference rate matching method for a multipoint conference system based on a pure integrated service digital network ISDN, which comprises the steps that when a conference is added with other terminals, if the conference rate of a terminal to be at a conference can not reach the existing conference rate of a terminal at the conference after being at the conference, an MCU carries out speed reduction processing to the terminal at the conference. By adopting the proposal of the invention, when the terminal to be at a conference can reach a conference rate smaller than the terminal at the conference, the rate of the terminal at the conference can be reduced without hanging up the terminal at the conference, thus realizing the matching of conference rate and being convenient for the operation of users.
Description
Technical field
The present invention relates to signaling and processing method of data in the data communication, relate in particular to the conference rate matching method of multipoint conference unit in pure ISDN (the Integrated Services Digital Network integrated services digital network) network.
Background technology
A basic multipoint conference unit---should form by MCU, conference terminal, transmission network as the multipoint videoconference system.Video conference terminal based on pure ISDN network utilizes the isdn link line to be connected, and its signal inserts MCU or other ISDN terminal through isdn line.
In the pure ISDN network TV conference system, between terminal and the terminal or the communication between terminal and the MCU directly link to each other by isdn line.The main agreement of using has: H.221, H.242, ISO13871.H.221 version of an agreement has been stipulated the transmission channel of whole 64kbit/s～1920kbit/s is dynamically cut apart the channel that the city is suitable for the more low rate of audio frequency, video, data and telematics occasion again.Be exactly specifically: distribute various channels; Also stipulated the frame structure of initial channel and additional channel.H.242 then be to make the other side know that it receives the decode the total capacity of various signals by its capability set of mutual transmission between terminal room or terminal and the MCU, carry out capability negotiation and carry out mode switch with this.The ISO13871 agreement then provides the method for highspeed serial data stream in a plurality of independently 56/64kbit/s channel of handling, these channels connect relatively independently, may there be time-delay in the data of each channel with respect to other channel, and receive channel must be a phase alignment, synchronous, so that recover primary data.Each channel frame structure of ISO13871 protocol definition provides alignment thereof.
Prior art problems is, when MCU will invite meeting on other terminal, or other terminal to go up can the time, because the conference rate of multi-point needs coupling, therefore if it is more to have gone up the isdn line resource that can terminal takies, then have to and will go up and can terminal hang up, call out again.As shown in Figure 1, system schematic when two terminals (being respectively first terminal 1 and second terminal 2) that link to each other for isdn line and MCU can not normally have a meeting, terminal and MCU use (2B+D) isdn line to link, MCU initiatively invites meeting on first terminal 1 in the process in session, on normal, understand in the process, because the isdn network environment defines, and has taken all isdn line resources.If at this moment MCU need invite meeting on second terminal 2 again, or second terminal, 2 needs are gone up meeting, according to the H320 protocol frame, after need hanging up first terminal 1, reuse different conference rates and call out first terminal 1, this has just caused the complexity of handling to the user, system's shortcoming flexibility, and user's operation is very inconvenient.
As shown in Figure 2, two terminals that link to each other for isdn line and the simulation drawing of MCU success.
Summary of the invention
Shortcoming and defect at the prior art existence, the invention provides the conference rate matching method of multipoint conference unit in a kind of pure ISDN network, the terminal of realization meeting to be added that can simple and flexible with go up can terminal conference rate consistent, go up can terminal and need not hang up.
The technical solution used in the present invention is:
A kind of conference rate matching method of the multipoint conference unit based on pure integrated services digital network ISDN comprises:
A, in the time will in a meeting, adding other terminal, if treat can terminal on after the meeting conference rate can not reach that go up can the existing conference rate of terminal, then execution in step b;
B, MCU carry out reduction of speed to the terminal of the meeting of going up to be handled.
Further, among the described step a, treat can terminal on after the meeting conference rate can not reach and go up and can be meant by the existing conference rate of terminal:
Multipoint control unit MCU can offer the conference rate of each participant terminal less than the existing conference rate of each last meeting terminal, or the maximum conference rate that can support of described each participant terminal gone up can the existing conference rate of terminal less than each, described participant terminal comprises that go up can terminal and treat the meeting terminal;
Further, described step b also comprises: make minimum in conference rate and the following speed behind the reduction of speed one to equate: the maximum rate that each participant terminal can be supported, MCU the maximum rate that can provide for each participant terminal.
Further, among the described step b, reduction of speed is handled and is meant: hang up unnecessary B channel resource according to the speed behind the described reduction of speed, carry out the upper end flow process again.
Further, also comprise behind the described step b:
C, can joining meeting to terminal with described treating; Its conference rate is the conference rate behind the described reduction of speed.
Further, among the described step a, if the channel resource that MCU can offer each participant terminal is more than or equal to the conference rate of each terminal of the access success first time, and the channel resource of described each terminal to be added more than or equal to each gone up can terminal speed, then directly carry out step c.
Further, among the described step a, in a meeting, add terminal and be meant that MCU invites other joining meeting to terminal, or other demanding terminal adds meeting.
Further, also comprise before the described step a:
Meeting is carried out in the intercommunication success between a MCU and one or more terminals.
After having adopted the solution of the present invention, when the conference rate for the treatment of can terminal can reach can terminal hour than going up, speed that can terminal on can be on hanging on reducing under can the situation of terminal, thus realize the coupling of conference rate, can user friendlyly operate.
Description of drawings
The conference system schematic diagram of Fig. 1 for can not normally have a meeting based on the MCU of isdn line and two communication terminals in the prior art time;
Fig. 2 is the video conferencing schematic diagram when having a meeting successfully based on the MCU of isdn line and two communication terminals in the prior art;
Fig. 3 is that going up of terminal can flow chart in the multipoint conference unit of isdn network in the prior art;
Fig. 4 is the concrete implementing procedure schematic diagram of the conference rate matching method of multipoint conference unit in the pure ISDN network of the present invention;
Fig. 5 is the application example schematic flow sheet of the conference rate matching method of multipoint conference unit in the pure ISDN network of the present invention.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
As shown in Figure 3, be the upper end flow process of ISDN terminal in the prior art:
The make a call calling of main channel B of A, protocol stack application layer.
B, protocol stack management level are called out to Q931, Q921 protocol element according to existing resources.
C, network side respond current b-channel call success.
D, carry out ISO13871 binding flow process.
E, according to the parameter of ISO13871 binding negotiation, prepare to call out additional B channel.
The calling of F, similar main channel B, the binding flow process of adding the B channel is finished binding.
G, carry out H221 frame search process, carry out exchange of H242 conference capability and mode switch after the frame alignment success.
H, report and have a meeting successfully, last meeting.
Suppose in certain session, conference rate between MCU and the terminal is 256kbit/s (kbps), but this moment, MCU need invite meeting on the other-end again, or other-end need go up meeting, and this moment another treat can the existing B channel resource of terminal have only 3 (conference rates of maximum support 192kbit/s).According to the principle of multipoint conference unit, the conference rate of multi-point should mate.
For achieving the above object, the present invention by the following technical solutions, the method of rate-matched in the multipoint conference unit under the pure ISDN network, when other terminal will go up meeting, and when its conference rate can't reach the existing speed of first group of meeting, reduction of speed is carried out in first group of meeting, that is to say in first group of meeting of meeting on, initiatively initiate reduction of speed, hang up unnecessary B channel resource, according to the terminal resource (the perhaps surplus resources of MCU) for the treatment of meeting, the conference rate between meeting terminal and MCU has been gone up in reduction, the method of changing down is that MCU initiatively hangs up can the unnecessary channel resource of terminal, make minimum in speed and the following speed behind the reduction of speed one consistent: each has been gone up can terminal and treat the maximum rate that the meeting terminal can be supported, MCU---comprise going up and can and the treat meeting---maximum rate that provides that can be each participant terminal; As above example is supposed maximum rate that MCU can provide for each terminal greater than 192kbit/s, and then N bar B channel resource should be initiatively hung up in first group of meeting, and N=(256-192)/64 is because B channel can provide the transmission rate of 64kbit/s; Described hanging up do not need to call out again, only needs again the conference capability between the mutual meeting of going up terminal and MCU to get final product.Described first group of meeting that meeting is MCU and one or more terminal rooms.
Described conference rate matching method specifically comprises the steps, as shown in Figure 4:
Steps A, the intercommunication success begins to carry out meeting between a MCU and one or more terminals;
Step B, have other terminal will add meeting, promptly MCU need call out other terminal or other terminal need be called out MCU, if treat this moment can terminal on after the meeting conference rate can not reach the existing conference rate of the meeting of going up terminal, execution in step C then, otherwise direct execution in step D;
Treat can terminal on after the meeting conference rate can not reach and go up and can be meant by the existing conference rate of terminal: the conference rate that MCU can offer each participant terminal less than each gone up can terminal existing conference rate, or the conference rate of the maximum that can support of described each participant terminal can not reach respectively upward existing conference rate of meeting terminal.
Step C, MCU be reduction of speed initiatively, go up can terminal carry out the reduction of speed processing, make minimum in speed and the following speed behind the reduction of speed one to equate: the maximum rate that each participant terminal can be supported, MCU can be the maximum rate of each participant terminal distribution; Described participant terminal comprises the terminal meeting of going up and that treat meeting.Such as, the resource that MCU can provide is total up to 6 B channel resources, the conference rate that can provide is total up to 384kbit/s, the terminal that goes up meeting is UE1, its speed is 192kbit/s, treat other two terminals that are of meeting, so the speed that each terminal can be distributed is 2 B channel resources, i.e. 128kbit/s; If the maximum rate that described terminal UE 1, UE2, UE3 can support is all more than or equal to 128kbit/s, the speed that then will have meeting is reduced to 128kbit/s; If one or more maximum rates that can support are arranged less than 128kbit/s among UE1, UE2, the UE3, the speed that then will have a meeting is reduced to one minimum in the maximum rate that these three terminals can support.
Hang up unnecessary B channel according to the conference rate that will drop to, carry out the upper end flow process again;
Step D can joining meeting to terminal with described treating, promptly MCU calls out that treat can terminal, and perhaps treating can terminal call MCU, and conference rate is the last conference rate behind the meeting terminal reduction of speed among the step C.
Further be illustrated with an application example of the present invention below
This example is to carry out on the basis of existing E1 handling process, does not have the calling and called notion, and with reference to accompanying drawing 5, its idiographic flow is:
The first step, calling terminal carries out normal upper end flow process, successfully goes up meeting.
In second step, need to add other terminal; The protocol stack application layer prepares to carry out reduction of speed according to the actual requirements, the B channel resource that calculating need be hung up.
In the 3rd step, the protocol stack application layer initiates to hang up the B channel resource to Q931, Q921.
In the 4th step, successful information is hung up in the network side response.
In the 5th step, carry out H221, H242 process again.Again carry out the exchange of frame alignment, conference capability.
Through above-mentioned flow process, in the multipoint videoconference system, can carry out the reduction of speed of meeting flexibly.Increased the flexibility of system, be user-friendly to.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (7)
1. conference rate matching method based on the multipoint conference unit of pure integrated services digital network ISDN comprises:
A, in the time will in a meeting, adding other terminal, if treat can terminal on after the meeting conference rate can not reach that go up can the existing conference rate of terminal, then execution in step b;
B, MCU carry out reduction of speed to the terminal that goes up meeting, hang up unnecessary B channel according to the conference rate that will drop to.
2. the method for claim 1 is characterized in that, among the described step a, treat can terminal on after the meeting conference rate can not reach and go up and can be meant by the existing conference rate of terminal:
Multipoint control unit MCU can offer the conference rate of each participant terminal less than the existing conference rate of each last meeting terminal, or the maximum conference rate that can support of described each participant terminal gone up can the existing conference rate of terminal less than each, described participant terminal comprises that go up can terminal and treat the meeting terminal.
3. method as claimed in claim 2 is characterized in that, minimum one equates in the conference rate among the described step b behind the reduction of speed and the following speed: the maximum rate that each participant terminal can be supported, MCU the maximum rate that can provide for each participant terminal.
4. method as claimed in claim 3 is characterized in that, also comprises behind the described step b:
C, can joining meeting to terminal with described treating; Its conference rate is the conference rate behind the described reduction of speed.
5. method as claimed in claim 4, it is characterized in that, among the described step a, if the channel resource that MCU can offer each participant terminal is more than or equal to the conference rate of each terminal of the access success first time, and the channel resource of described each terminal to be added then directly carries out step c more than or equal to each speed that has gone up the meeting terminal.
6. the method for claim 1 is characterized in that, among the described step a, add terminal and be meant that MCU invites other joining meeting to terminal in a meeting, or other demanding terminal adds meeting.
7. the method for claim 1 is characterized in that, also comprises before the described step a:
Meeting is carried out in the intercommunication success between a MCU and one or more terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101067776A CN101262359B (en) | 2007-06-20 | 2007-06-20 | Conference rate matching method for multi-point conference system in pure ISDN network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101067776A CN101262359B (en) | 2007-06-20 | 2007-06-20 | Conference rate matching method for multi-point conference system in pure ISDN network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101262359A CN101262359A (en) | 2008-09-10 |
| CN101262359B true CN101262359B (en) | 2010-09-08 |
Family
ID=39962585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101067776A Expired - Fee Related CN101262359B (en) | 2007-06-20 | 2007-06-20 | Conference rate matching method for multi-point conference system in pure ISDN network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101262359B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104394031A (en) * | 2014-11-13 | 2015-03-04 | 华为软件技术有限公司 | Method and device for forecasting access rate of broadband network |
-
2007
- 2007-06-20 CN CN2007101067776A patent/CN101262359B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101262359A (en) | 2008-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5563882A (en) | Process for converting a point-to-point multimedia call to a bridged multimedia call | |
| US6018360A (en) | Method of switching a call to a multipoint conference call in a H.323 communication compliant environment | |
| WO1997005754A9 (en) | Process for converting a point-to-point multimedia call to a bridged multimedia call | |
| CN104363407B (en) | A kind of video conferencing system means of communication and related device | |
| WO2011088656A1 (en) | Method and system for implementing three-party call of videophone by mobile terminals | |
| CN102625078A (en) | Teleconference control method, terminal device, MCU (Multipoint Control Unit) and video system | |
| EP2061268A1 (en) | Method and system to achieve cluster communication service | |
| CN101146208A (en) | Terminal with built-in multiple-point control unit and its communication method | |
| CN103444162A (en) | Method for transferring control of an existing conference call to an application for controlling a conference and computer program product for carrying out the method | |
| CN101656864A (en) | Method for realizing selection and watching of video and video session system | |
| EP2288175A1 (en) | Delivery of identification information | |
| JPH03230652A (en) | Multi-medium communication system | |
| EP2442520B1 (en) | Method and system for implementing large capacity call by using h.323 protocol stack | |
| CN101719903B (en) | Method and system for realizing multi-point control unit cascading of IP multimedia subsystem | |
| CN100574232C (en) | A kind of implementation method of parallel calls function of multimedia call | |
| CN103379044A (en) | Network device and method for adjusting bandwidth dynamically thereof | |
| CN1960525B (en) | Dialogue control method and system in service of multiparty communication | |
| CN101262359B (en) | Conference rate matching method for multi-point conference system in pure ISDN network | |
| CN102006451A (en) | Method, system and MCU (Micro Control Unit) for realizing multipicture in cascade meeting | |
| CN203206277U (en) | Gateway used for video conferences | |
| CN100544422C (en) | Being used to does not have the method for interrupting Conference Calling | |
| CN1610349B (en) | Real-time information transmitting method | |
| JP2005260384A (en) | Video conference system | |
| EP3142318B1 (en) | Scheduling method and device for protocol stack in remote presentation system | |
| CN101222651B (en) | Method and device for implementing co-line call |
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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Zhongxing Net Technology Co., Ltd. Assignor: ZTE Corporation Contract record no.: 2012990000392 Denomination of invention: Conference rate matching method for multi-point conference system in pure ISDN network Granted publication date: 20100908 License type: Exclusive License Open date: 20080910 Record date: 20120606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20190620 |