CN101119251A - Method for implementing video added value service in H.323 standard based network - Google Patents
Method for implementing video added value service in H.323 standard based network Download PDFInfo
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- CN101119251A CN101119251A CNA2006101101293A CN200610110129A CN101119251A CN 101119251 A CN101119251 A CN 101119251A CN A2006101101293 A CNA2006101101293 A CN A2006101101293A CN 200610110129 A CN200610110129 A CN 200610110129A CN 101119251 A CN101119251 A CN 101119251A
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Abstract
The present invention provides a method of realizing a video value-added service in a network based on the H.323 standard, including: expands the registrations, acceptances and mode RAS protocols in the H.323 standard; increase the value-added service guide and instruct messages about the video value-added service in the corresponding order message of the expanded RAS protocols; and guide a user terminal to the corresponding value-added service according to the guide and instruct message of the value-added service. According to the method of the present invention, the video value-added services of video requesting, video live broadcast, song requested video, network browsing, information inquiring and so on are realized in the network based on the H.323 standard.
Description
Technical field
The present invention relates to the video communication technology field, particularly a kind of method that in based on the video communication network of standard H.323, realizes video added value service.
Background technology
H.323 standard is based on the video communication network of IP network.H.323 the original intention of standard design provides point-to-point or the multipoint video communication service.At present the video communication service that provides on the network based on standard H.323 mainly is limited to point-to-point video communication, multipoint videoconference.The application that becomes increasingly conspicuous in people's daily life along with network is except realizing on the network based on standard H.323 that point-to-point video communication, the multipoint videoconference, people also require to realize other increment communication service on this network.In addition, development of internet technology has promoted to comprise the more colourful communications applications of video communication technology, this also impels people to wish to realize that by the application of video communication technology is expanded video communication value-added service, wherein said video added value service comprise video request program, net cast, video requesting song, network browsing, information inquiry or the like.
Summary of the invention
For this reason, the objective of the invention is in communication network, to realize video added value service, with the application of extending video communication service based on standard H.323.
For achieving the above object, according to the present invention, a kind of method that realizes rich and varied video added value service on existing network based on standard has H.323 been proposed, thereby fully satisfy user's video communication demand, wherein said video added value service comprises video request program, net cast, video requesting song, network browsing, information inquiry or the like.
According to the present invention, a kind of method that realizes video added value service in based on the network of standard H.323 is provided, comprising: the registration in the described H.323 standard, admittance and state RAS agreement are expanded; By the mode of number mapping and message feedback, in the corresponding signaling message of the RAS of described expansion agreement, increase value-added service guiding Indication message about video added value service; And, user terminal is directed in the corresponding value-added service according to described value-added service guiding Indication message.
Preferably, the access request ARQ/ admission reject ARJ message in the described RAS agreement is expanded, and described method further comprises: the user dials specific number by video terminal, and wherein this number is sent to gatekeeper GK by ARQ message; GK resolves described number, determines business and the ingress for service parameter thereof that will guide, and the value-added service that will comprise value-added service entrance parameter guides indication information to be encapsulated in the ARJ message to return to the user; User terminal is resolved and the startup client-side program according to type of service and ingress for service parameter in the described value-added service guiding Indication message, enters corresponding value-added service according to suction parameter and uses.
Preferably, expand the business control ServiceControl field in the described ARQ/ARJ signaling message, and carry corresponding value-added service guidance information by this field.
Preferably, expand the nonstandard data n onStandardData field in the described ARQ/ARJ signaling message, and carry corresponding value-added service guidance information by this field.
Preferably, the professional control response SCR of business in described RAS agreement control indication SCI/ message is expanded, carry corresponding value-added service guiding indication information by the control of the business in described SCI/SCR message ServiceControl field, and directly be pushed to the guiding that terminal realizes value-added service by the GK triggering and by GK, described method further comprises: when service needed is pushed to terminal, will comprise that by GK the value-added service of value-added service entrance parameter guides indication information to be encapsulated in the SCI message and sends to terminal; Terminal receives SCI message, sends SCR message to GK, confirms to receive corresponding value-added service guiding indication information; And terminal is according to type of service and ingress for service parameter in the described value-added service guiding Indication message, resolves also to start client-side program, enters corresponding value-added service according to suction parameter and uses.
Preferably, to the nonstandard message of described RAS protocol extension NSM, carry corresponding value-added service guiding indication information by the nonstandard data field in the described NSM message, and directly be pushed to the guiding that terminal realizes value-added service by the GK triggering and by GK, described method further comprises: when service needed is pushed to terminal, the value-added service guiding indication information that will be comprised value-added service entrance parameter by GK is encapsulated in the nonStandardData field, sends to terminal by NSM message; Terminal receives NSM message, and loopback NSM message is given GK, confirms to receive corresponding value-added service guiding indication information; And terminal is according to type of service and ingress for service parameter in the value-added service guiding Indication message, resolves also to start client-side program, uses according to the corresponding value-added service of suction parameter.
Preferably, the guiding function for value-added service is undertaken by uniform resource position mark URL.
Preferably, described video communication value-added service comprises: video request program, net cast, video requesting song, web page browsing and information inquiry etc.
Description of drawings
It is clear more and obvious that characteristics of the present invention, advantage and beneficial effect will become by the detailed description of carrying out with reference to the following drawings, wherein:
The professional control field that Fig. 1 shows in the RAS agreement of utilizing standard H.323 according to the present invention is triggered the method that realizes the video added value service guiding by user side;
The nonstandard data field that Fig. 2 shows in the RAS agreement of utilizing standard H.323 according to the present invention is triggered the method that realizes the video added value service guiding by user side;
The professional control field that Fig. 3 shows in the RAS agreement of utilizing standard H.323 according to the present invention is triggered the method that realizes the video added value service guiding by the gatekeeper; And
The nonstandard data field that Fig. 4 shows in the RAS agreement of utilizing standard H.323 according to the present invention is triggered the method that realizes the video added value service guiding by the gatekeeper.
Embodiment
Below in conjunction with accompanying drawing preferred implementation of the present invention is described, to specify implementation method of the present invention.
Traditional point-to-point video communication process is: video communication terminal is dialed the other side's number, this number is sent to GK (Gatekeeper, the gatekeeper), the number that GK dials for terminal carries out address resolution, search out the address of terminal called, set up two connections between the terminal then, thereby set up video communication.
This method is that the mode by number mapping and message feedback is directed to every value-added service.That is: video terminal is dialed some special number, this number passes through RAS (Registration H.323, Admission and Status, registration, admittance and state) agreement, wherein the RAS agreement is the agreement between end points and the GK, has defined registration, access, bandwidth change, state and detach procedure between end points and GK.The method according to this invention, number sends to GK, after GK resolves, not to set up terminal to other-end or MCU (Multipoint Control Unit, multipoint control unit) calling, but be directed to other business (as video request program, WEB browses etc.) by GK.
Referring to accompanying drawing 1, the professional control field that Fig. 1 shows in the RAS agreement of utilizing standard H.323 according to the present invention triggers the method that realizes the video added value service guiding by user side, and this method comprises:
(1) user dials some special number by video terminal, this number is the same with other video calls, send to GK by ARQ (Admission Request inserts request) signaling message, wherein said ARQ signaling message belongs to a kind of signaling message that relates in the RAS agreement.
(2) GK resolves for the number that the user dials, definite business that will guide and ingress for service point parameter thereof, and the value-added service guiding indication information that will comprise value-added service entrance parameter is encapsulated in ARJ (Admission Reject, the admission reject) signaling message and returns.Equally, described ARJ signaling message also belongs to a kind of signaling message that relates in the RAS agreement.
(3) terminal is according to type of service in the guiding service Indication message and ingress for service point parameter, resolves also to start client-side program, enters corresponding value-added service according to suction parameter and uses, for example video request program, application such as live.
Support that in terminal the ARQ/ARJ signaling in its RAS agreement has been expanded professional control (ServiceControl) field under the situation of version H.323V4, carry corresponding value-added service guiding indication information by this business control ServiceControl field.
The serviceControl field is defined as follows:
ServiceControlSession::＝SEQUENCE
{
sessionId INTEGER(0..255)，
contents ServiceControlDescriptor OPTIONAL，
reason CHOICE
{
open NULL，
refresh NULL，
close NULL，
...
}，
...
}
ServiceControlDescriptor::＝CHOICE
{
Url IA5String (SIZE (0..512)),--fill in herein and want guide service
URL
signal H248SignalsDescriptor，
nonStandard NonStandardParameter，
callCreditServiceControl CallCreditServiceControl，
...
}
For version H.323V2,, can realize by the nonstandard data n onStandardData field in the RAS agreement this moment owing to do not have the ServiceControl extended field in its RAS agreement.The nonStandardData field is the field of reserving in the RAS agreement, and this field can be carried in the ARQ/ARJ signaling.
Referring to accompanying drawing 2, the nonstandard data field that Fig. 2 shows in the RAS agreement of utilizing standard H.323 according to the present invention triggers the method that realizes the video added value service guiding by user side, and this method comprises:
(1) user dials some special number by video terminal, and this number is the same with other video calls, sends to GK by the ARQ signaling message.In this embodiment, utilize the nonstandard data n onStandardData field in the ARQ signaling message to add the number of being dialed.
(2) GK resolves for the number that the user dials, and determines business and the ingress for service parameter thereof that will guide, and the value-added service that just comprises value-added service entrance parameter guides indication information to be encapsulated in the ARJ message to return.In this embodiment, also be to utilize the nonstandard data n onStandardData field in the ARJ signaling and corresponding service entrance parameter is encapsulated in the ARJ signaling message.
(3) terminal is resolved and the startup client-side program according to type of service and ingress for service parameter in the value-added service guiding Indication message, enters corresponding value-added service according to suction parameter and uses.
NonStandardData is defined as follows:
NonStandardParameter::＝SEQUENCE
{
nonStandardIdentifier NonStandardIdentifier，
data OCTET STRING
}
NonStandardIdentifier is nonstandard sign H.221, and the nonstandard information format in data territory is defined as follows:
| Field name | Field contents | Take byte | Remarks |
| Message id | Message id (udwMsgID) | 4 bytes | |
| The message total length | Message total length (udwMsgDataLen) | 4 bytes | Total bytes (not comprising itself) |
| Message content | Concrete message content | ～(indefinite) | Fill in the URL that wants guide service |
GK is undertaken by URL (URL(uniform resource locator)) for the guiding function of value-added service, is an example below:
| Special service number for example | URL for example | Professional | Type |
| 1680001 (news) | http://news.sina.co m.cn | WEB browses | HTTP |
| 1680002 (weather) | http://www.t7.com | WEB browses | HTTP |
| 1680003 (train constantly) | http://www.train.co m | WEB browses | HTTP |
| 1680004 (live world cups) | rtsp://sports01.vip. video.net.cn | Media player | RTSP |
| Other | ... | ... |
Can also directly trigger for the guiding of value-added service and to realize by GK.At this moment, professional actual value-added service platform by the backstage is initiated, and is pushed to terminal by GK.
Under H.323V4 terminal and GK support situation, its RAS agreement is supported SCI (ServiceControlIndication, professional control is indicated) and SCR (ServiceControlResponse, professional control response) signaling message carries corresponding value-added service guiding indication information by business control ServiceControl field wherein.Fig. 3 shows the professional control field in the RAS agreement of utilizing standard H.323 according to the present invention and realizes the method for video added value service guiding by the gatekeeper, and its realization flow is as follows:
(1) when service needed is pushed to terminal, will comprise that by GK the value-added service of value-added service entrance parameter guides indication information to be encapsulated in SCI (ServiceControlIndication, the professional control indication) message and sends to terminal,
(2) terminal receives SCI message, sends SCR (ServiceControlResponse, professional control response) message and gives GK, confirms to receive corresponding value-added service guiding indication information.
(3) terminal is resolved and the startup client-side program according to type of service and ingress for service parameter in the value-added service guiding Indication message, enters corresponding value-added service according to suction parameter and uses.
Under H.323V4 terminal and GK do not support situation, can realize by the expansion RAS message.Here by NSM (NonStandardMessage, nonstandard message) message bearing business information.The nonstandard data field that Fig. 4 shows according to the present invention in the RAS agreement during H.323 utilization marks triggers the method that realizes the video added value service guiding by the gatekeeper, and its flow process is as follows:
(1) when service needed is pushed to terminal, will comprise that by GK the value-added service guiding indication information of value-added service entrance parameter is encapsulated in the nonStandardData field, send to terminal by NSM message.
(2) terminal receives NSM message, and loopback NSM message is given GK, confirms to receive corresponding value-added service guiding indication information.
(3) terminal is resolved and the startup client-side program according to type of service and ingress for service parameter in the value-added service guiding Indication message, enters other application according to suction parameter.
NSM is the H.323 expanded signalling of redetermination, and concrete signaling is defined as follows:
NonStandardMessage::＝SEQUENCE
{
requestSeqNum RequestSeqNum，
nonStandardData NonStandardParameter，
...，
tokens SEQUENCE OF ClearToken OPTIONAL，
cryptoTokens SEQUENCE OF CryptoH323Token OPTIONAL，
integrityCheckValue ICV OPTIONAL，
}
NonStandardData Field Definition wherein is the same.
Below in conjunction with the drawings the method for video added value service that realizes in based on the video communication network of standard H.323 according to the present invention is set forth, but the present invention is not limited to this.One skilled in the art will appreciate that according to the principle of the invention, can make various modifications, improvement, and do not break away from the enclose scope of claim of the present invention the present invention.
Claims (10)
1. method that realizes video added value service in based on the network of standard H.323 is characterized in that described method comprises:
Registration in the described H.323 standard, admittance and state RAS agreement are expanded;
By the mode of number mapping and message feedback, in the corresponding signaling message of the RAS of described expansion agreement, increase value-added service guiding Indication message about video added value service; And
According to described value-added service guiding Indication message, user terminal is directed in the corresponding value-added service.
2. according to the method for claim 1, it is characterized in that, the access request ARQ/ admission reject ARJ message in the described RAS agreement is expanded, and described method further comprise:
The user dials specific number by video terminal, and wherein this number is sent to gatekeeper GK by ARQ message;
GK resolves described number, determines business and the ingress for service parameter thereof that will guide, and the value-added service that will comprise value-added service entrance parameter guides indication information to be encapsulated in the ARJ message to return to the user;
User terminal is resolved and the startup client-side program according to type of service and ingress for service parameter in the described value-added service guiding Indication message, enters corresponding value-added service according to suction parameter and uses.
3. according to the method for claim 1 or 2, it is characterized in that, expand the business control ServiceControl field in the described ARQ/ARJ signaling message, and carry corresponding value-added service guidance information by this field.
4. according to the method for claim 1 or 2, it is characterized in that, expand the nonstandard data n onStandardData field in the described ARQ/ARJ signaling message, and carry corresponding value-added service guidance information by this field.
5. according to the method for claim 1 or 2, it is characterized in that, undertaken by uniform resource position mark URL for the guiding function of value-added service.
6. according to the method for claim 1 or 2, it is characterized in that described video communication value-added service comprises: video request program, net cast, video requesting song, web page browsing and information inquiry etc.
7. according to the method for claim 1, it is characterized in that, the professional control response SCR of business in described RAS agreement control indication SCI/ message is expanded, carry corresponding value-added service guiding indication information by the control of the business in described SCI/SCR message ServiceControl field, and directly be pushed to the guiding that terminal realizes value-added service by the GK triggering and by GK, described method further comprises:
When service needed is pushed to terminal, will comprise that by GK the value-added service of value-added service entrance parameter guides indication information to be encapsulated in the SCI message and sends to terminal;
Terminal receives SCI message, sends SCR message to GK, confirms to receive corresponding value-added service guiding indication information; And
Terminal is resolved and the startup client-side program according to type of service and ingress for service parameter in the described value-added service guiding Indication message, enters corresponding value-added service according to suction parameter and uses.
8. according to the method for claim 1, it is characterized in that, the nonstandard message of described RAS protocol extension NSM is expanded, carry corresponding value-added service guiding indication information by the nonstandard data field in the described NSM message, and directly be pushed to the guiding that terminal realizes value-added service by the GK triggering and by GK, described method further comprises:
When service needed is pushed to terminal, will comprise that by GK the value-added service guiding indication information of value-added service entrance parameter is encapsulated in the nonStandardData field, send to terminal by NSM message;
Terminal receives NSM message, and loopback NSM message is given GK, confirms to receive corresponding value-added service guiding indication information; And
Terminal is resolved and the startup client-side program according to type of service and ingress for service parameter in the value-added service guiding Indication message, uses according to the corresponding value-added service of suction parameter.
9. according to claim 1,7 or 8 method, it is characterized in that, undertaken by uniform resource position mark URL for the guiding function of value-added service.
10. according to claim 1,7 or 8 method, it is characterized in that described video communication value-added service comprises: video request program, net cast, video requesting song, web page browsing and information inquiry etc.
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| CN200610110129A CN101119251B (en) | 2006-07-31 | 2006-07-31 | Method for implementing video added value service in H.323 standard based network |
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| CN200610110129A CN101119251B (en) | 2006-07-31 | 2006-07-31 | Method for implementing video added value service in H.323 standard based network |
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| CN101119251B CN101119251B (en) | 2010-05-26 |
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| EP1014666A1 (en) * | 1998-12-21 | 2000-06-28 | Siemens Aktiengesellschaft | Method for setting up of multipoint connections between plural terminals in a H.323 data communication network |
| CA2317980C (en) * | 1999-09-16 | 2004-10-19 | At&T Corp. | H.323 mobility architecture for terminal, user and service mobility |
| KR100414928B1 (en) * | 2001-09-05 | 2004-01-13 | 삼성전자주식회사 | Method for transmitting short message in internet phone and system therefor |
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