CN107580190A - A kind of list of conference based on Session Initiation Protocol is subscribed to and Notification Method - Google Patents
A kind of list of conference based on Session Initiation Protocol is subscribed to and Notification Method Download PDFInfo
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- CN107580190A CN107580190A CN201710724524.9A CN201710724524A CN107580190A CN 107580190 A CN107580190 A CN 107580190A CN 201710724524 A CN201710724524 A CN 201710724524A CN 107580190 A CN107580190 A CN 107580190A
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Abstract
The present invention provides a kind of list of conference subscription based on Session Initiation Protocol and Notification Method, step S1, logs in video conferencing system by web browser by user first, carries out list of conference and subscribe to request；Step S2, list of conference subscribes to the Subscriber that request is forwarded to video conferencing system by proxy server；Step S3, the Subscriber of video conferencing system notifies the list of conference of user to be transmitted to user by proxy server；The list of conference is notified with the conference list event packages of XML document, the event package only includes the configuration information of meeting, and user is allowed to subscribe to list of conference information, and informant and subscriber must support application/conference list+xml data formats, the root element of the XML document is<conference‑list>.The inventive method improves the efficiency of useful information transmission, has saved substantial amounts of server resource on the premise of the integrality of list of conference information and readability is ensured.
Description
Technical field
The present invention relates to video conference field, more particularly to a kind of list of conference based on Session Initiation Protocol is subscribed to and notice side
Method.
Background technology
Conferencing technology based on Session Initiation Protocol (Session Initiation Protocol, session initiation protocol) has turned into
The mainstream technology standard of video conferencing system.For H.323, Session Initiation Protocol is simple in construction clear, can with it is relatively low into
This, builds the video signal audio system of complexity.Session Initiation Protocol has been next generation network (NGN：Next
GenerationNetwork core control protocol).At the same time, Session Initiation Protocol and its standardization effort of application are also positive
Progress among, among these just include by IETF SIPPING working groups leader centralized multimedia conferencing standardization effort
With the meeting-place control and CPCP (Conference Policy Control Protocol) standardization of XCON working groups leader
Work.With the formulation of these standards, the conference system based on Session Initiation Protocol will have broader practice scene.
User is logged in after conference system, it is necessary to know its list of conference information participated in.Existing conference status subscribes to rule
Model " RFC 4575-A Session Initiation Protocol (SIP) Event Package for Conference
The subscription of conference status information and informing mechanism defined in State ".But the content of announcement main body of the specification is some meeting
A meeting for possessing complex configurations intactly can not be presented to user in status information, these information.And user carries out meeting
The precondition of state subscription be after which the meeting known it and can subscribed to has could subscribe to these can status information.Therefore,
User can not pass through conference status and subscribe to acquisition conferencing information in the case where which the meeting for not knowing oneself participation has.
Moreover, user is more often not intended to understand the detailed status information of some meeting, its meeting participated in is only known
View summary info (such as：Session Topic, meeting start time, personnel participating in the meeting etc.).The shape for the meeting that RFC 4574 is defined
The state information content is more huge, if the meeting that user attends a meeting is more, then pushing the fresh information of conference status will take
Substantial amounts of server resource.The efficiency of useful information transmission how is improved, will be the problem of emphasis of the present invention considers.
The content of the invention
The technical problem to be solved in the present invention, it is to provide a kind of list of conference subscription based on Session Initiation Protocol and notice side
Method, on the premise of the integrality of list of conference information and readability is ensured, the efficiency of useful information transmission is improved, saved big
The server resource of amount.
What the present invention was realized in：A kind of list of conference based on Session Initiation Protocol is subscribed to and Notification Method, including
Step S1, video conferencing system is logged in by web browser by user first, carries out list of conference and subscribe to request；
Step S2, list of conference subscribes to the Subscriber that request is forwarded to video conferencing system by proxy server；
Step S3, the Subscriber of video conferencing system forwards the list of conference notice of user by proxy server
To user；
Wherein, the list of conference is notified with the conference-list event packages of XML document, the event
Bag only includes the configuration information of meeting, and allows user to subscribe to list of conference information, and informant and subscriber must support
Application/conference-list+xml data formats；
The subscription of the list of conference and the signaling process of notice are specifically：
(1), WEB client side sends carrying SIP SUBSCRIBE websocket messages to proxy server；
(2), proxy server extracts SIP SUBSCRIBE from websocket messages, and is transmitted to video council
The Subscriber of conference system；
(3) after, the Subscriber of video conferencing system receives SIP SUBSCRIBE, hair under proxy server is passed through
The list of conference notice at family.
Further, the root element of the XML document is<conference-list>, the root element<
conference-list>Carry version attributes, the root element<conference-list>Daughter element pass through addition
It is divided into permission some notifications after state attributes and does not allow the class of some notifications two；Wherein, Conference-list event packages
Belong to customized, the subscriber for alloing information by version attributes is judged the integrality of notice；And pass through
State attributes can simplify content of announcement, reduce information exchange cost.
Methods described also includes step S4, changed when the list of conference information of video conferencing system, Subscriber
Actively the modification information of the list of conference of user is notified to be transmitted to user by proxy server, wherein modification information only includes
Since being notified from last time, the information that changes.
The invention has the advantages that：
(1) user only need to once be subscribed to, and its all conferencing information participated in can be known, due to list of conference information
Only configured comprising meeting, and configuration information has the characteristics of renewal frequency is low, ensure that the integrality of conferencing information and readable
Property while, can greatly reduce server send notice length and frequency.After complete list of conference being pushed to user, service
The content of announcement that device subsequently pushes only is included away from the change information that meeting configures after last time notice, can reduce server update meeting
Resource spent by list.
(2) meeting configuration item abundant defined in conference-list event packages, user can easily pass through client
The meeting configuration of various customization is completed at end, and conference-list event packages are write by XML in the present invention, and XML is to expand
Markup language is opened up, this makes it have good autgmentability and flexibility, and developer can be based on according to the business needs of oneself
Existing XML specification, by way of newly-increased label, quickly increase new meeting configuration item.
(3) Subscriber of video conferencing system automatically turns the list of conference notice of the user by proxy server
User is issued, therefore user remains to obtain the meeting relevant with oneself in the case where which the meeting for not knowing oneself participation has
Discuss information.
Brief description of the drawings
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is video conferencing system frame diagram of the present invention.
Fig. 2 is control signaling flow chart in meeting-place of the present invention.
Fig. 3 is the Signalling exchange flow chart of user's registration and list of conference subscription procedure in the inventive method.
Fig. 4 is the establishment, modification and the Signalling exchange flow chart for deleting process of meeting in the inventive method.
Fig. 5 is the Signalling exchange flow chart that host invites with removing members in the inventive method.
Embodiment
As shown in figure 1, the list of conference based on Session Initiation Protocol of the present invention is subscribed to and Notification Method, including：
Step S1, video conferencing system is logged in by web browser by user first, carries out list of conference and subscribe to request；
Step S2, list of conference subscribes to the Subscriber that request is forwarded to video conferencing system by proxy server；
Step S3, the Subscriber of video conferencing system forwards the list of conference notice of user by proxy server
To user；
Step S4, when the list of conference information of video conferencing system changes, Subscriber is actively by the meeting of user
The modification information notice of view list is transmitted to user by proxy server, wherein modification information only include from last time notice with
Come, the information to change.
As shown in Fig. 2 the subscription of list of conference of the present invention and the signaling process of notice are specifically：
(1), WEB client side sends carrying SIP SUBSCRIBE websocket messages to proxy server；
(2), proxy server extracts SIP SUBSCRIBE from websocket messages, and is transmitted to video council
The Subscriber of conference system；
(3) after, the Subscriber of video conferencing system receives SIP SUBSCRIBE, hair under proxy server is passed through
The list of conference notice at family.
Wherein, the Signalling exchange flow of user's registration of the present invention and list of conference subscription procedure is as shown in figure 3, the wound of meeting
The Signalling exchange flow for building, changing and deleting process is as shown in Figure 4；Host is invited with the Signalling exchange flow of removing members then
As shown in Figure 5.
Wherein, as shown in table 1 below, the list of conference is led to the conference-list event packages of XML document
Know, the event package only includes the configuration information of meeting, and allows user to subscribe to list of conference information, and informant and subscriber
Application/conference-list+xml data formats must be all supported, the root element of the XML document is<
conference-list>；The root element<conference-list>Version attributes are carried, what property value was incremented by, can
It is complete (full), part (partial) or described of deleted (deleted) to include information for labelled element
Element<conference-list>Daughter element allow some notifications by adding to be divided into after state attributes and do not allow portion
It is divided to and notifies two classes, which part informing mechanism refers in notice only comprising the information since being notified from last time, to have changed.If
Some element includes a large amount of data frequently changed, then after element addition state attributes, can carry out some notifications；Following table
The member of middle support section notice is known as：<conference-list>、<conference-info>、<users>With<user>.Table
Multiple identical daughter elements are also distinguished by element key assignments in 1, such as<conference-info>Key assignments：Entity, general assignment
For meeting URI；<user>Key assignments：Entity, typically it is entered as member URI.
Table 1：Conference-list XML structure general views
Table 2 is seen again, and the table 2 gives<conference-list>The specific definition mode of XML Schema
Table 2
Table 3 below gives list of conference subscription, establishment, modification and the example for deleting notice of meeting.
Table 3
Although the foregoing describing the embodiment of the present invention, those familiar with the art should manage
Solution, the specific embodiment described by us are merely exemplary, rather than for the restriction to the scope of the present invention, are familiar with this
The equivalent modification and change that the technical staff in field is made in the spirit according to the present invention, should all cover the present invention's
In scope of the claimed protection.
Claims (2)
1. a kind of list of conference based on Session Initiation Protocol is subscribed to and Notification Method, it is characterised in that：Including：
Step S1, video conferencing system is logged in by web browser by user first, carries out list of conference and subscribe to request；
Step S2, list of conference subscribes to the Subscriber that request is forwarded to video conferencing system by proxy server；
Step S3, the list of conference of the user is notified to be transmitted to by proxy server by the Subscriber of video conferencing system
User；
Wherein, the list of conference is that conference-list event packages in the format of a xml document are notified, the event
Bag only includes the configuration information of meeting, and requires that informant and subscriber must support application/conference-
List+xml data formats, after user subscribes to list of conference information, all conferencing informations of its participation can be obtained；
The subscription of the list of conference and the signaling process of notice are specifically：
(1), WEB client side sends carrying SIP SUBSCRIBE websocket messages to proxy server；
(2), proxy server extracts SIP SUBSCRIBE from websocket messages, and is transmitted to video conference system
The Subscriber of system；
(3) after, the Subscriber of video conferencing system receives SIP SUBSCRIBE, issue user's by proxy server
List of conference notifies.
2. a kind of list of conference based on Session Initiation Protocol according to claim 1 is subscribed to and Notification Method, it is characterised in that：
The root element of the XML document is<conference-list>, the root element<conference-list>Carry
Version attributes, the root element<conference-list>Daughter element by being divided into permission after adding state attributes
Some notifications and do not allow the class of some notifications two；
Methods described also includes step S4, when the list of conference information of video conferencing system changes, and Subscriber is actively
The modification information notice of the list of conference of user is transmitted to user by proxy server, wherein modification information is only included from upper
Since secondary notice, the information that changes.
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Cited By (6)
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| CN109361892A (en) * | 2018-10-30 | 2019-02-19 | 平安科技（深圳）有限公司 | The signalling analysis method and device of voice and video telephone, electronic equipment, storage medium |
| CN109714561A (en) * | 2019-01-07 | 2019-05-03 | 福建星网智慧科技股份有限公司 | A kind of SIP conference control method based on INFO message |
| CN110198478A (en) * | 2019-05-10 | 2019-09-03 | 广州视源电子科技股份有限公司 | Interaction recorded broadcast method, system, client, device, equipment and storage medium |
| CN112291371A (en) * | 2020-12-28 | 2021-01-29 | 全时云商务服务股份有限公司 | Conference message real-time synchronization method, system, device and storage medium |
| CN113434224A (en) * | 2021-05-24 | 2021-09-24 | 荣耀终端有限公司 | Conference information transmission method and electronic equipment |
| CN115065944A (en) * | 2022-08-18 | 2022-09-16 | 中保国盛集团有限公司 | Conference information notification method, 5G message center and computer-readable storage medium |
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Cited By (7)
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| CN115065944A (en) * | 2022-08-18 | 2022-09-16 | 中保国盛集团有限公司 | Conference information notification method, 5G message center and computer-readable storage medium |
| CN115065944B (en) * | 2022-08-18 | 2022-11-18 | 中保国盛集团有限公司 | Conference information notification method, 5G message center and computer readable storage medium |
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Application publication date: 20180112 |