CN1893625B - Method for autonomous sponsoring meeting-gathering by user terminal in out-band mode - Google Patents
Method for autonomous sponsoring meeting-gathering by user terminal in out-band mode Download PDFInfo
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- CN1893625B CN1893625B CN2005100832668A CN200510083266A CN1893625B CN 1893625 B CN1893625 B CN 1893625B CN 2005100832668 A CN2005100832668 A CN 2005100832668A CN 200510083266 A CN200510083266 A CN 200510083266A CN 1893625 B CN1893625 B CN 1893625B
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Abstract
The method includes steps: through single channel built between user terminal and gatekeeper, user terminal transfers message including information of calling in conference to gatekeeper, which transfers the message to operational support platform; through gatekeeper, the operational support platform transfers message including feedback information to user terminal, and meanwhile dispatches managed multipoint control unit to call in related terminals to take part in conference. Comparing with prior art, the invention overcomes disadvantages of manual work for calling in related terminals to take part in conference, low efficiency and not flexible mode of implementation and operation, and long period for calling in a conference.
Description
Technical field
The present invention relates to the video communication technology field, especially, relate to based on the user terminal of system H.323 and independently initiate the method for conference convening with out-band method.
Background technology
Along with the develop rapidly of telecommunications industry, it is more and more easier that the interchange between the people also becomes, and the Internet from modes such as traditional telegram, phone, faxes to the fashionable world greatly facilitates people's work and life.Along with the raising of terminal equipment disposal ability and the increase of the network bandwidth, video communication technology becomes the previous new focus of order.As a kind of multimedia service, video signal communication is professional to carry out long-distance transmissions to informixs such as voice, image, data together.People can see the other side's image again at the sound that carries out both can having heard when the strange land exchanges the other side, increase the sense of reality, cordial feeling and telepresenc that the strange land exchanges.
As shown in Figure 1, video communication system generally is made up of user terminal (104), gatekeeper (102), multipoint control unit (MCU) (103), transmission channel (105) and operation supporting platform several parts such as (101).
Video user terminal (104) is the user side equipment of TV conference service, mainly is responsible for meeting-place image, the collection of voice, coding, to the image, the audio medium stream that receive unpack, decode, functions such as output and meeting control.
Gatekeeper (102) is the asset management device of TV conference service, and the management object of GK is MCU, video terminal etc.Major function is: address resolution, access control, Bandwidth Management, district management also provide interface with OSS, and authentication, charge information of meeting etc. are provided.
Multipoint control unit (MCU) (103) is the tandem treatment facility of TV conference service, from being divided into multipoint controller (MC) and multipoint processor (MP) in logic, MC provides the call setup and the controlled function of video conference in many ways, and H.245 the controlled function of MC by finishing.MP receives audio frequency, video and the data flow of self terminal or cascade MCU, GW in video conference in many ways, handle these Media Streams and they are sent back to terminal, MCU or GW.
Operation supporting platform (101) is the summation of a series of modules such as conference dispatching, service management, tent charging, network management.Its major function is unified control, unified resource scheduling and the management of realization to video communication network, by exchanging the mutual of layer equipment with video signal, finishes full-range control of videoconferencing service and management simultaneously.
Transmission channel (105) is used for the transmission of Media Stream and control flows.
Normally H.323 in the system, need to set up RAS (registration, permission, state) channel between user terminal and the gatekeeper, by the RAS channel, user terminal signs in on the gatekeeper, and the request gatekeeper allows it and another user terminal to call out when communication.Normal RAS channel does not transmit the meeting application information, therefore, traditional video conference convening mode is, at first preengage to the system manager by the video signal user, that is to say, user terminal will be many conference convening information by manual type apprizing system keeper, preengage successfully after, the keeper passes through the operation supporting platform port operation meeting in the time of preengaging.This meeting mode of holding necessarily requires have the special messenger to be responsible for convening of meeting, implementation underaction in the operation supporting platform side.
Summary of the invention
The objective of the invention is for overcome traditional video conference hold need in the mode manually to be responsible for convening, implementation is dumb, the mode of operation inefficiency, long shortcoming of cycle is held in meeting, and a kind of method of calling a meeting automatically is provided.
In order to achieve the above object, the present invention proposes a kind of user terminal and independently initiate the method for conference convening with out-band method, comprise: user terminal is delivered to the gatekeeper by the message that builds on individual passage between user terminal and the gatekeeper and will comprise conference convening information, and the gatekeeper is delivered to operation supporting platform with this message; The message that operation supporting platform will comprise feedback information passes to user terminal by the gatekeeper again, dispatches the multipoint control unit that operation supporting platform has jurisdiction over simultaneously and convenes the terminals joining the conference relevant with meeting.
Because normally H.323 in the system, communicate by the RAS signaling between user terminal and the gatekeeper, and this signaling is not support to transmit conference convening information, and user terminal must adopt the mode of artificial reservation if will call a meeting, and needs platform side to have the special messenger to be responsible for scheduling.The present invention is used for transmitting conference specially and convenes information by set up individual passage between user terminal and gatekeeper, just by calling a meeting with outer mode, like this user just can be automatically with meeting the information of convening pass through the conference management module that the gatekeeper is delivered to operation supporting platform, conference management module just produces feedback information according to this conference convening information automatically and transmits reuse family terminal by GK, and the scheduling multipoint control unit is organized terminals joining the conference, whole process is automatic, need not artificial reservation, having overcome needs in the prior art manually to be responsible for convening, implementation is dumb, mode of operation inefficiency, meeting are held long shortcoming of cycle.
More particularly, described individual passage is an independent TCP passage.
The wherein said message that comprises conference convening information encapsulates by following specific messages form with the message that comprises feedback information: this form comprises version number, reserved field, bag length, order length and order.Comprise data field alternatively.
That is to say, the present invention is for transmission conference convening information and feedback information on the TCP passage, defined the outer message format of special band, by the outer message format of this band, and the form of said expansion bands external information in back and sub-information, just can be placed on all message relevant the form the inside and communicate with conference convening.
The wherein said message that comprises conference convening information is specially to be set up the outer connection request of band, SiteCall request or disconnects in the outer connection request of band one or more, and the described message that comprises feedback information is specially to be set up SiteCall connection response, SiteCall response or disconnection and be with in the outer connection response one or more.
Specific definition of the present invention the concrete message format of above-mentioned six kinds of message, and carried out clear and definite regulation to wherein setting up the information data format and the sub-information data format that are comprised in SiteCall request and the SiteCall response message, defined concrete information data type and sub-information data type simultaneously.
The information data type comprises SiteCall information and calling response message, and sub-information data type comprises the sub-information of meeting class, the sub-information of meeting-place class, the sub-information of Streaming Media class, the sub-information of common class and the sub-information of notice class.This standard defines the data encoding format of above-mentioned all kinds of sub-information, comprising: the sub-information of conference commands type, the sub-information of user cipher, convene the sub-information of device type, the service quality rating coding, multi-stream data formatter information, meeting level of security formatter information, the sub-information of data conferencing type format, the sub-information of terminal type, language form formatter information, the sub-information of transmission rate, the sub-information of video algorithm, the sub-information of video format, the sub-information of video frame rate, the sub-information of audio algorithm, the security parameter digital coding, safety check digital data coding, the Media Stream role illustrates formatter information, the sub-information of meeting failure, the sub-information of Streaming Media conference type, the sub-information of stream media format.
By these information and sub-information, terminal just can be placed on the sub-information such as conference commands type, user cipher, service quality on the position of sub-information of expansion bands external information of message and transmit, and has reached the purpose of transmitting these message relevant with meeting.
More than be at each feature of the present invention, discussed the contribution that these features are initiatively called a meeting and done for user terminal one by one.The user itself that delegates power to the lower levels that the present invention convenes meeting is for the popularization of publicization videoconferencing service provides good basis.Describe embodiments of the invention in detail below in conjunction with accompanying drawing.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described, wherein:
Fig. 1 is according to the video communication system structural representation that the present invention is based on H.323;
Fig. 2 is the flow chart that user terminal is independently initiated the method for conference convening;
Fig. 3 is the flow chart that further provides that user terminal is independently initiated conference convening.
Embodiment
By specific description of embodiments of the present invention below in conjunction with accompanying drawing, those skilled in the art will be more readily understood the present invention.
With reference to accompanying drawing 1, accompanying drawing 1 shows the video communication system structural representation based on H.323, comprising user terminal (104), transmission channel (105), GK (102), multipoint control unit (103) and operation supporting platform (101).Implied a conference management module in this operation supporting platform, this conference management module is responsible for the dispatching management of whole meeting, and the kernel scheduling function of operation supporting platform is all finished therein.Between user terminal and GK, set up independent TCP passage (700 port) and transmit relevant information, all The data TPKT encapsulation format.And the transmission of this message is carried out with specific messages form described below, will introduce this form in detail below.And the present invention requires user terminal and GK all will support the outer message format of the band of expanding, and this support can realize according to the message format simple programming by those skilled in the art.
With reference to accompanying drawing 2, accompanying drawing 2 shows the user directly initiates conference convening by terminal call flow.At first require to set up independent TCP passage between user terminal (104) and the GK (102), after passage is set up, the conference convening information that GK initiates terminal is forwarded to the conference management module of operation supporting platform (101), shown in the first row arrow of Fig. 2, conference management module passes to user terminal with feedback information by GK according to the conference dispatching situation again, shown in the second row arrow of Fig. 2.The conference management module of operation supporting platform is dispatched its MCU that has jurisdiction over (103) resource simultaneously, and MCU convenes each terminals joining the conference according to normal flow.This normal flow is the same with prior art, comprise that MCU sends ARQ message to the gatekeeper, GK returns an ACF message to MCU, MCU sends out (setup) request of setting up to user terminal (104) then, user terminal is sent out ARQ message to the gatekeeper, GK is by the ACF acknowledgement messaging, and user terminal connects (connect) to MCU then.Other terminal (104 ') for meeting relates to also can adopt similar mode.
Following table 1 shows the concrete message format that transmits conference convening information and feedback information, comprises version number, reserved field, bag long, order length, order and data (optional).SiteCall message between user side and the GK is used the carrying of TCP 700 ports, uses TPKT form encapsulation of data (RFC1006).
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| version number | keep | bag is long |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| order length | order |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| [data] ...
+-+-+-+-+-+-+-+-+
The concrete encapsulation format of the table 1 outer message of band
Wherein:
Version number: 8, be fixed as 0x03;
Reserved field, is fixedly filled out 0x00 by 8;
Bag is long, and 16, the packet length with byte representation comprises packet header;
Order length, 16, with the order length of byte representation, comprise the order and the data of back, do not comprise order length self;
Order: 16, command word specifically is defined in the back and describes;
Data: elongated, the parameter that order is carried, optional.
Below table 2 defined the concrete information order content of the outer message of band, comprise and set up the outer connection request of band, set up the SiteCall connection response, SiteCall request, SiteCall response, disconnect the outer connection request of band and outer connection response is with in disconnection.
| Order | Implication | Direction |
| 0x00 | Set up the outer connection request of band | T-＞G |
| 0x01 | Set up the SiteCall connection response | G-＞T |
| 0x02 | The SiteCall request | T-＞G |
| 0x03 | The SiteCall response | G-＞T |
| 0x04 | Disconnect the outer connection request of band | T-＞G |
| 0x05 | Disconnect the outer connection response of band | G-＞T |
6 kinds of concrete information orders of the outer message of table 2 band
Certainly, 6 kinds of message that the present invention is not limited thereto, those skilled in the art can belong to protection scope of the present invention according to the message of making in this description.
Fig. 2 only shows a concise and to the point schematic flow diagram.Fig. 3 shows and utilizes these 6 kinds of concrete message to carry out the idiographic flow that conference convening information transmits.
At first, user terminal sends to the gatekeeper and sets up the outer connection request of band.Table 3 has defined the concrete message format of setting up the outer connection request of band.
Table 3 is set up the concrete message format of the outer connection request of band
The gatekeeper sends to user terminal and sets up SiteCall connection response, the concrete message format shown in following table 4:
Wherein result's value and implication are as follows:
| SiteCall connects result's (the 5th eight bit group) | Implication |
| 0 | Successful connection allows SiteCall |
| 1 | Connection failure, GK is connected interruption with service center |
| 2 | Connection failure, termination number does not exist |
| 3 | Connection failure, terminal is unregistered |
| 4 | Connection failure, the termination number size error |
Table 4 is set up the SiteCall connection response
User terminal sends the SiteCall request to the gatekeeper then, form such as table 5:
Table 5 SiteCall request form
SiteCall information data format such as following table 6:
Table 6 SiteCall information data format
After the gatekeeper was forwarded to the conference management platform with this information, the conference management platform responded and sends it back the gatekeeper, and the gatekeeper sends to user terminal with SiteCall response as shown in table 7 below again.
Table 7 SiteCall response format
Here use SiteCall response message class, according to form filling information data field as following table 8:
The content of the information data field of table 8 table 7
User terminal sends to the gatekeeper and disconnects the outer connection request of band, and is as shown in table 9:
Table 9 disconnects the outer connection request of band
The gatekeeper sends disconnection band as shown in table 10 and connects response to user terminal outward:
Table 10 disconnects the outer connection response of band
Form to the top expansion bands external information of mentioning defines below, and is as shown in table 11:
The form of table 11 expansion bands external information
Wherein: information data beginning flag: be fixed as 0xfe.
The extension bits of R:1bit if R is 0, represents that next byte no longer is the information type field; If R is 1, represent next byte still for the information data type field, can be level and smooth during by the guarantee information data type is set increases of R position expand.
The information data type: 7 bits, can a plurality of 7 bits of extension bits by the R position, the type of the transfer information data of indicating.
Information data length: the total length of the information data of indicating to transmit comprises control field and all sub-information such as information data beginning flag, information data end mark, CRC.
Information data end mark: be fixed as 0xfd.
CRC16: the CRC check value that adopts 16 canonical algorithms of CCITT.
Sub-information definition in the table 11 such as following table 12
Sub-information in table 12 table 11
The extension bits of R:1bit if R is 0, represents that next byte no longer is the information type field; If R is 1, represent next byte still for sub-information type field, can be level and smooth when guaranteeing that by being provided with of R position sub-information type increases expand.
Sub-information type: 7 bits can expand to a plurality of 7 bits, the type of the sub-information data of indicating to transmit by the R position.
Sub-message length: represent the length (byte) of sub-information data, this field length is 1 byte.
Sub-information data: entrained data in the sub-packets of information.
This standard defines information data type and the sub-information data type of mentioning in the top information format, and particular content is as follows:
| Type | R | 7 bit information data class offsets |
| SiteCall information | 0 | 0x00 |
| The SiteCall response message | 0 | 0x01 |
Table 13 information data type definition
The sub-information data type definition of table 14
By definition to this a little information, just can be placed on the sub-information such as conference commands type, user cipher, service quality on the position of sub-information of expansion bands external information of message and transmit, reach the purpose of transmitting these message relevant with meeting.By this a little information, just can will between user and gatekeeper, transmit such as conference convening message such as meeting-place.
Embody by the tight message format of a top cover, just can be encapsulated in all the elements relevant in the message and transmit, thereby carry out conference convening with conference convening.
Above embodiment has been described according to the present invention based on H.323 realizing the method that the user independently calls a meeting by terminal in the system, those skilled in the art can know, according to principle of the present invention, can make amendment, improve and replace and all can not break away from principle of the present invention various embodiment of the present invention.The present invention is limited by the claim of enclosing.
Claims (7)
1. a user terminal is independently initiated the method for conference convening with out-band method, comprising:
User terminal is delivered to the gatekeeper by the message that transmitting conference convenes the individual passage of information will comprise conference convening information that is used for specially that builds between user terminal and the gatekeeper, promptly by calling a meeting with outer mode, the gatekeeper is delivered to operation supporting platform with this message;
The message that operation supporting platform will comprise feedback information passes to user terminal by the gatekeeper, dispatches the multipoint control unit that operation supporting platform has jurisdiction over simultaneously and convenes the terminals joining the conference relevant with meeting.
2. method according to claim 1, wherein said individual passage are independent TCP passages.
3. method according to claim 1, the wherein said message that comprises conference convening information encapsulates by following specific messages form with the message that comprises feedback information: this form comprises version number, reserved field, bag length, order length and order.
4. method according to claim 3 is characterized in that described form also comprises data field.
5. method according to claim 4, the wherein said message that comprises conference convening information is specially to be set up the outer connection request of band, SiteCall request or disconnects in the outer connection request of band one or more, and the described message that comprises feedback information is specially to be set up SiteCall connection response, SiteCall response or disconnection and be with in the outer connection response one or more.
6. method according to claim 5, wherein the encapsulation of the data field of the message of SiteCall request contains the information data of sub-information of meeting class and the sub-information of meeting-place class.
7. method according to claim 5, wherein the data field encapsulation of the message of SiteCall response contains the information data of the sub-information of result notification class.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100832668A CN1893625B (en) | 2005-07-08 | 2005-07-08 | Method for autonomous sponsoring meeting-gathering by user terminal in out-band mode |
| HK07107303.0A HK1103324A1 (en) | 2005-07-08 | 2007-07-09 | Video conference call setup via out-bound controlling message |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100832668A CN1893625B (en) | 2005-07-08 | 2005-07-08 | Method for autonomous sponsoring meeting-gathering by user terminal in out-band mode |
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| CN1893625A CN1893625A (en) | 2007-01-10 |
| CN1893625B true CN1893625B (en) | 2010-06-09 |
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| CN2005100832668A Active CN1893625B (en) | 2005-07-08 | 2005-07-08 | Method for autonomous sponsoring meeting-gathering by user terminal in out-band mode |
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| HK (1) | HK1103324A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867770A (en) * | 2010-05-26 | 2010-10-20 | 中兴通讯股份有限公司 | Method for obtaining remote seat position information and remote presentation system |
| CN106162041A (en) * | 2015-04-02 | 2016-11-23 | 中兴通讯股份有限公司 | Video conferencing system based on gatekeeper and video conference convene method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1642096A (en) * | 2004-01-08 | 2005-07-20 | 华为技术有限公司 | Multimedia conference convening method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1642096A (en) * | 2004-01-08 | 2005-07-20 | 华为技术有限公司 | Multimedia conference convening method |
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| CN1893625A (en) | 2007-01-10 |
| HK1103324A1 (en) | 2007-12-14 |
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