CN101815067B - Multimedia conference realization method and system - Google Patents

Abstract

The invention discloses a method for realizing a multimedia conference. The method includes: a user logs in to a web page or a client, and sends a request for creating a conference site to a media resource server through a conference Web server (Conf WS) and a conference business capability server (Conf AS). (MRS); after the MRS creates a conference site successfully, the user adds conference members through a Web page or a client, and invites conference members through Conf WS and Conf AS; conference members hold a conference on ConfAS; the invention also discloses a multimedia conference Implement the system. According to the technical solution of the present invention, the ease of use and convenience of users participating in the meeting are greatly improved.

Description

Method and system for realizing multimedia conference

technical field

The invention relates to the field of intelligent network communication, and mainly relates to a method and system for realizing a multimedia conference.

Background technique

With the popularization and improvement of computer-centered multimedia technology, new means and methods have been brought to conference work. Especially in recent years, visual information technologies such as video conferencing and distance learning have been widely used in the field of intelligent network communication. , the multimedia conferencing service has been popularized in the IP Multimedia Subsystem (IMS, IP Multimedia Subsystem) and the next-generation communication network (NGN, NextGeneration Network), which are increasingly valued and promoted by people, and are playing an increasingly important role. A multimedia conference can be an audio conference or a video conference, or a conference in which audio, video and data applications coexist.

Most of the currently implemented multimedia conferences, such as voice and video conferences, rely on smart terminals. The so-called smart terminal refers to PC smart terminals such as MSN and QQ. For smart terminals, if a multimedia conference is to be conducted, the user needs to download and install these smart terminals to implement operations such as holding a multimedia conference. These software can only run on the Internet, and cannot communicate with the client server (CS, Client Server), that is, they cannot directly call mobile phones or landlines through these smart terminals, and can only make calls between the same smart terminals in the Internet .

There is also a multimedia conference, which is realized through an Interactive Voice Response (IVR, Interactive Voice Response) system. Mobile phone users can obtain required information or participate in interactive services by dialing a designated number. In order to realize the multimedia conferencing of the IVR system, it is necessary to apply for access number resources from the operator, purchase the corresponding voice platform equipment and connect the signaling/traffic relay with the voice gateway of the operator, build its own service system, and create its own After the voice service process is established, the IVR service can be launched. However, there is currently no corresponding specification to restrict this type of equipment, and the interoperability and openness of services are poor. When equipment from different manufacturers communicate with each other, a lot of coordination work is required.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a method and system for implementing a multimedia conference. A user terminal only needs to log in to a web page or client to perform operations related to the conference.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

The invention provides a method for realizing a multimedia conference, including:

The user logs in to the web page or client, and sends the request for creating a conference site to the media resource server (MRS) through the conference web server (Conf WS) and the conference business capability server (ConfAS);

After the MRS creates a conference site successfully, the user adds conference members through the Web page or client, and invites conference members through the Conf WS and Conf AS;

The conference members hold a conference on ConfAS.

In the above method, the method further includes: the user logs in to the web page or the client terminal to end the conference.

In the above method, the specific method for the user to log in to the web page or end the meeting at the client end is as follows:

The user logs in to the Web page or the client clicks to end the conference, and sends an HTTPPost request to the Conf WS to end the conference, and the Conf WS sends a TCP request message to the Conf AS, and the Conf AS sends a request to the The terminals of the invited conference members and the MRS send BYE to release calls and resources. After all calls and media resources are released, the Conf AS returns a TCP response message that the conference ends to the ConfWS, and the Conf WS sends a message to the ConfWS. The Web page or the client returns an HTTP response indicating that the conference is over, and the Web page or the client prompts that the conference has ended.

In the above method, the user logs in the web page or the client, and sends the request for creating a conference site to the MRS through Conf WS and Conf AS, specifically:

The user logs in the Web page or the client, sends a request for creating a conference to the Conf WS through the Web page or the client, and the Conf WS sends a conference creation request to the Conf AS after receiving the request for creating a conference. message and conference attribute information, the Conf AS sends a request message for creating a conference site to the MRS after receiving the conference creation request and the conference attribute information.

In the above method, the message for creating a conference is a Transmission Control Protocol (TCP) message for creating a conference or a Binary Layer Control Protocol (BFCP) message for creating a conference.

In the above method, after the MRS successfully creates the conference site, the user adds conference members through the Web page or client, and invites conference members through Conf WS and Conf AS. Specifically:

After the MRS successfully creates the site, the Conf WS returns an HTTP response message that the site is successfully created to the Web page or client, and the Web page or client, after receiving the response message, prompts that the site is successfully created, and pops up Conference control interface; the user adds a conference member through the pop-up conference control interface of the Web page or the client, after the addition is completed, the request for inviting the conference member is sent to the terminal of the conference member through the Conf WS and Conf AS, and the conference member accepts After the invitation, the Conf WS saves the status information of the conference members sent by the Conf AS.

In the above method, the conference member holding a conference on the Conf AS further includes:

When the conference is held, if the Conf WS receives the HTTP Get request for updating conference information sent by the Web page or the client, it will return an HTTP response to the Web or the client, carrying the latest information of the conference and conference members in the response. Status, after receiving the response, the Web page or client displays the specific status information of the member.

In the above method, the client is a client supporting the HTTP protocol.

The present invention also provides a realization system of multimedia conference, including: login module, Conf WS module, Conf AS module, MRS module; Wherein,

The login module is used to provide a web page or a client, and the user logs in the web page or the client through the login module, sends a request to create a conference site to the MRS module through the Conf WS module and the Conf AS module, and adds conference members;

The Conf WS module is used to receive the request for creating a meeting place and the request for inviting conference members sent by the login module, and send the request to the Conf AS module;

The Conf AS module is used to receive the request from the Conf WS module to create a conference site and invite conference members, and send the request to create a conference site to the MRS module to provide a platform for conference members to hold meetings;

The MRS module is configured to create a site after receiving a request for creating a site.

In the above system, the login module is also used for the user to log in to the Web or the client to end the conference.

In the above system, the intercommunication between the Conf AS and the Conf WS uses TCP messages or BFCP messages.

The implementation method and system of the multimedia conference provided by the present invention are multimedia conferences based on the browser/server (BS, Browser Server) mode. When a conference is held, the user terminal can perform operations related to the conference by logging in to a Web page or client , which greatly improves the ease of use and convenience of the users participating in the conference; the function of the conference is separated into two servers, Conf AS and Conf WS, so that the two servers can focus on executing their respective functions and reduce the coupling of functions. Conf AS and Conf WS Conf WS intercommunication can be realized through TCP messages or application layer protocols such as BFCP. By using TCP messages, Conf AS and Conf WS from different manufacturers can communicate with each other. The method is simple and convenient. Using BFCP and other application layer protocols can realize the standardization of interoperability. , with good scalability; Conf WS has a standard HTTP interface, so the functions of Conf WS can be provided to clients that support HTTP.

Description of drawings

FIG. 1 is a schematic flow diagram of a method for implementing a multimedia conference in the present invention;

FIG. 2 is a schematic structural diagram of a system for implementing a multimedia conference in the present invention.

Detailed ways

The present invention proposes a multimedia conference in BS mode, and its basic idea is: a user logs in to a Web page or a client, and sends a request for creating a conference site to a media resource server (Conf WS) and a conference service capability server (Conf AS) MRS); after MRS successfully creates a conference site, the user adds conference members through the Web page or client, and invites conference members through Conf WS and Conf AS; conference members hold a conference on Conf AS.

The multimedia conference in BS mode means that the user conducts the conference and the conference control operation through the Web browser or the client.

In a specific embodiment of the present invention, the transmission control protocol (TCP, Transmission Control Protocol) message used for the intercommunication between the meeting Web server (Conf WS, Conference WebServer) and the meeting business capability server (Conf AS, Conference Application Server) is the invention from Defined, the format is as follows:

type/length variable name Remark UNIT8[32] Identity message ID UINT8[64] HTTPSessionId HTTP service session number UINT8[64] CallSessionId Conference service session number UINT32 ConfId meeting number UINT8[128] ConfURI Conference URI UINT32 FunctionId Conference function number UINT8[xx] Reserved variable structure length

Among them, UNIT8 and UNIT32 indicate the type of variable, [xx] indicates the length of the variable, a UNIT8 indicates a unit or a byte, a UNIT32 indicates 4 UNIT8, UNIT8[32] indicates that the variable needs to occupy the length of 32 UNIT8; Identity Indicates the message ID, which is used to distinguish whether it is a TCP message used by the conference or other ordinary TCP messages; HTTPSessionId indicates the service session number of the Hypertext Transfer Protocol (HTTP, Hyper Text Transfer Protocol), which is used to identify the request sent by Conf WS. The HTTPSessionId of the request sent by Conf WS is different; CallSessionId indicates the session number of the conference service, that is, the call number of the conference. When Conf WS sends a request to create a conference, it is filled with 0. The actual value is generated by Conf AS after the conference site is successfully created. Return it to Conf WS through the response message of inviting members, and then fill in CallSessionId in all requests and response messages of the conference; ConfId represents the conference number, which is the unique identifier of the conference. After the conference site is successfully created, it will be generated by Conf AS in the order of the creation request ;ConfURI indicates the resource identifier (URI, Universal ResourceIdentifier) of the conference, which is used by users to join the conference or subscribe to the site information; FunctionId indicates the function number of the conference operation, which is used to distinguish specific conference operations, such as creating a conference site, ending a conference, and inviting Members, etc.; Reserved is used for message body extension and has a variable structure length. According to different FunctionIds, the structure of Reserved content is different, and different conference functions can be realized.

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is the schematic flow chart of the realization method of multimedia conference of the present invention, as shown in Fig. 1, the realization method of multimedia conference provided by the present invention comprises the following steps:

Step 101, the user logs in to the Web page or the client, and sends a request for creating a meeting place to a Media Resource Server (MRS, Media Resource Server) through Conf WS and Conf AS;

Specifically, the user logs in to the web page or client, sends a request for creating a conference to Conf WS through the web page or client, and the request for creating a conference carries conference attribute information, and the web page or client sends the conference attribute information through Post To Conf WS, the client supports HTTP, which can be realized by installing the corresponding client software. The client has functions such as QQ and MSN, such as chat, group, voice, etc., and also has the ability to communicate with fixed phones and mobile phones Function; the intercommunication between Web pages or clients and Conf WS can use HTTP. The conference attribute information is some parameters related to the conference, such as the duration of the conference, the number of people in the conference, the theme of the conference, etc. According to the different needs of users, the parameters The types and numbers are also different;

Conf WS sends a conference creation message to Conf AS after receiving the conference creation request. The conference creation message carries conference attribute information. The conference creation message can be but not limited to the TCP message for creating a conference The Binary Floor Control Protocol (BFCP, Binary Floor Control Protocol) message of the conference; if the message to create a conference is a TCP message to create a conference, the FunctionId in the message is 100, and the specific content of the conference attribute information carried in the message is as follows:

field type/length variable name field meaning UINT8[128] Creater Conference Applicants UINT32 ConfStartType Method of meeting initiation (instant/reservation) UINT32 ConfType Meeting Type (Audio/Video) UINT8[128] ConfSubject Conference theme UINT8[20] ConfStartTime Meeting start time (used when scheduling a meeting) UINT32 ConfDuration length of meeting UINT32 ConfSize The number of people the meeting can accommodate UINT32 ConfEndNotifyTime How long before the meeting ends to be reminded UINT8[128] President Chairman of the meeting (empty if there is no chairman) UINT8[6] PresidentPwd Conference chairperson password

UINT8[6] MemberPwd Conference member password UINT32 PicCount Number of video conference screens

After receiving the request for creating a conference and the conference attribute information, the Conf AS initializes the conference attributes according to the conference attribute information, that is, sets the values of the parameters in the conference attribute information, and sends a request message for creating a conference site to the MRS. The conference attribute information initialized by the AS. After receiving the request message for creating a site, the MRS returns 200 OK to the Conf AS, indicating that the request message for creating a site has been received.

Step 102, after the MRS successfully creates the conference site, the user adds conference members through the web page or client, and invites conference members through Conf WS and Conf AS;

Specifically, MRS creates a conference site, and the method of MRS creating a conference site can be but not limited to: MRS sends its own information such as IP address and conference attribute information to the terminal where the conference members are located in the form of media stream, and at the same time obtains the terminal where the conference member is located. information, such as IP address, etc., so that both the MRS and the user terminal know each other’s information, and the conference members can learn about the topic of the conference, the duration of the conference and other information through the conference attribute information. At the same time, MRS allocates media resources and opens media channels. The MRS successfully creates the site. After the MRS successfully creates the site, it sends a response message of the site creation success to Conf AS. After receiving the response message of the site creation success, the Conf AS returns 200 OK to the MRS, indicating that the site creation response message is received. MRS and The intercommunication between Conf AS generally uses Session Initiation Protocol (SIP, Session Initiation Protocol) or Media Gateway Control Protocol (MGCP, MediaGateway Control Protocol). The specific protocol used depends on the type of protocol supported by MRS; After a successful response message, send a TCP response message to Conf WS that the conference was created successfully. The FunctionId of the message is 100, and the specific content carried in the message is as follows:

type/length variable name Remark UINT32 Result Meeting request result, 200 indicates success, other codes indicate request failure UINT8[32] Reason Description of the failure reason when the request fails UINT8[xx] Reserved Variable structure length, contract extension as needed

After Conf WS receives the TCP response message that the conference is successfully created, it returns an HTTP response message that the conference site is successfully created to the web page or client. After receiving the response message, the web page or client prompts the user that the conference site is successfully created and pops up the conference Control interface; the user adds conference members through the web page or the conference control interface popped up by the client. After the addition is completed, the web page or the client sends an HTTP Post request for inviting conference members to Conf WS, and Conf WS sends the request after receiving the request. The TCP request message for inviting conference members is sent to ConfAS. The request message carries the number information of the invited conference members. The FunctionId in the TCP message is 200. The specific content carried in the message is as follows:

type/length variable name Remark UINT32 MemberId Conference member ID, fill in 0 UNIT8[128] Member meeting members UINT32 JoinType The method of joining conference members, 1 system invites, 2 users join UINT8[32] PresenceName Conference member display name UINT8[xx] Reserved Variable structure length, contract extension as needed

Conf AS returns a response message to Conf WS to invite conference members, indicating that the request has been successfully received. The response message is a TCP response message, and the FunctionId in the message is 200. The specific content carried in the message is as follows:

type/length variable name Remark UINT32 MemberId Conference member ID UINT32 Result Conference request result, 200 means success, other code means failure UINT8[32] Reason Description of the failure reason when the request fails UINT8[xx] Reserved Variable structure length, contract extension as needed

After Conf WS receives the response message of inviting conference members, it returns an HTTP response to the Web page or client, indicating that the request for inviting conference members has been successfully received by Conf AS, and the Web page or client shows that conference members are being invited; Conf AS Send an invitation message to the terminals of the invited conference members. The terminal first returns 180 Ringing to indicate receipt of the invitation message, and then returns 200 OK to indicate acceptance of the invitation. Conf AS returns ACK to the terminal to indicate that the 200 OK sent by the terminal is successfully received, and the first session on the terminal side is completed. Second media negotiation, the intercommunication between Conf AS and terminal uses SIP;

Conf AS sends invitation information to MRS to negotiate the use of media resources. MRS returns 200OK to indicate that the negotiation of media resources is successful. Conf AS returns ACK to indicate that the 200OK returned by MRS is received successfully. The media negotiation on the media resource server side is completed, and Conf AS obtains the MRS media. Resource information, Conf AS uses MRS media resource information to conduct the second media negotiation on the terminal side with the terminal side;

Conf AS sends to Conf WS a TCP message indicating that conference members join successfully. The FunctionId in this message is 300, and the specific content carried in the message is as follows:

type/length variable name Remark UINT32 MemberId Conference member ID UNIT8[128] Member meeting members UINT32 MemberStatus Current status of conference members UINT8[xx] Reserved Variable structure length, contract extension as needed

Conf WS saves the status information of conference members sent by Conf AS; if you want to continue to invite conference members, the user can add conference members through the web page or the conference control interface that pops up on the client, and then send the HTTP Post request to invite conference members For Conf WS, the subsequent steps are the same as the previous description, and will not be repeated here.

Step 103, meeting members hold a meeting on the Conf AS;

Specifically, after successfully inviting conference members, the conference members hold a conference on the Conf AS, and the MRS allocates conference resources to the terminals where each conference member resides, so that the terminals where each conference member resides are connected to the allocated conference resources, and the MRS commands the conference chip to mix Audio, the conference chip mixes the audio streams from the terminals where the conference members are located, so that the conference members can hear each other’s voices; when the conference is held, if Conf WS receives the The HTTP Get request to update the meeting information will return an HTTP response to the Web or the client, and the response will carry the latest status of the meeting and meeting members. After receiving the response, the Web page or client will display the specific status information of the members, which includes meeting Whether the member is online, the number of the conference member, etc.

Step 104, the user logs in to the web page or client to end the conference;

Specifically, the user logs in to the web page or the client clicks to end the conference, and sends an HTTP Post request to Conf WS to end the conference. Conf WS sends the TCP request message to ConfAS. The FunctionId in the TCP message is 101, and the message carries The specific content is as follows:

type/length variable name Remark UINT8[6] PresidentPwd Conference chairperson password UINT8[xx] Reserved Variable structure length, contract extension as needed

Conf AS sends BYE to the terminals of the invited conference members and MRS to release calls and resources. After all calls and media resources are released, Conf AS returns a TCP response message of conference end to Conf WS. The FunctionId in this message is 101 , the specific content carried in the message is as follows:

type/length variable name Remark UINT32 Result Result of meeting end request, 200 success, other failure error codes UINT8[32] Reason Description of the failure reason when the request fails UINT8[xx] Reserved Variable structure length, contract extension as needed.

Conf WS returns the HTTP response of the end of the conference to the web page or client, and the web page or client prompts that the conference has ended.

For realizing above-mentioned method, the present invention also provides a kind of realization system of multimedia meeting, as shown in Figure 2, this system comprises: login module 21, Conf WS 22, Conf AS 23, MRS 24; Wherein,

The login module 21 is used to provide a web page or a client. The user logs in the web page or the client through the login module 21, sends a request for creating a conference site to the MRS 24 through the Conf WS 22 and the Conf AS 23, adds conference members and ends the conference;

Conf WS 22, used to receive the request for creating a conference site and the request for inviting conference members sent by the login module 21, and send the request to Conf AS 23;

Conf AS 23 is used to receive the request from Conf WS 22 to create a conference site and invite conference members, and send the request to create a conference site to MRS 24; it provides a platform for conference members to hold meetings;

MRS 24, used to create a site after receiving a request to create a site.

The above description is only a preferred embodiment of the present invention, and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the within the protection scope of the present invention.

Claims (10)

1. A method for implementing a multimedia conference, characterized in that the method comprises: The user logs in to the web page or the client, and sends the request for creating a conference carrying the conference attribute information to the conference Web server Conf WS through Post. After receiving the request for creating a conference, the Conf WS sends it to the conference business capability server Conf AS. Create the message and conference attribute information of the conference, the Conf AS initializes the conference attribute according to the conference attribute information, and sends the request for creating the conference site to the media resource server MRS; The MRS creating a conference site includes sending its own information and the conference attribute information to the terminals where the conference members are located in the form of media streams, obtaining information about the terminals where the conference members are located, allocating media resources and opening media channels; After the MRS creates a conference site successfully, the user adds conference members through the Web page or client, and invites conference members through the Conf WS and Conf AS; The conference members hold a conference on the Conf AS. 2 . The method according to claim 1 , further comprising: the user logs in to the web page or the client terminal to end the meeting. 3 . 3. The method according to claim 2, wherein the user logs in to the web page or ends the meeting at the client end as follows: The user logs in to the Web page or the client clicks to end the conference, and sends an HTTPPost request to the Conf WS to end the conference, and the Conf WS sends a TCP request message to the Conf AS, and the Conf AS sends a request to the The terminals of the invited conference members and the MRS send BYE to release calls and resources. After all calls and media resources are released, the Conf AS returns a TCP response message that the conference ends to the ConfWS, and the Conf WS sends a message to the ConfWS. The Web page or the client returns an HTTP response indicating that the conference is over, and the Web page or the client prompts that the conference has ended. 4. The method according to claim 1, wherein the message for creating a conference is a Transmission Control Protocol (TCP) message for creating a conference or a Binary Layer Control Protocol (BFCP) message for creating a conference. 5. The method according to claim 1, characterized in that, after the MRS successfully creates a conference site, the user adds conference members through a Web page or a client, and invites conference members through Conf WS and Conf AS as follows: After the MRS creates the site successfully, the Conf WS returns an HTTP response message that the site is successfully created to the Web page or the client, and the Web page or the client prompts that the site is created successfully after receiving the response message, and The conference control interface pops up; the user adds a conference member through the pop-up conference control interface of the Web page or the client, after adding, the request for inviting the conference member is sent to the terminal of the conference member through the Conf WS and Conf AS, and the conference member After accepting the invitation, the Conf WS saves the status information of the conference members sent by the Conf AS. 6. method according to claim 1, is characterized in that, described meeting member holds a meeting on Conf AS and further comprises: When the conference is held, if the Conf WS receives the HTTP Get request for updating conference information sent by the Web page or the client, it returns an HTTP response to the Web page or the client, and the response carries the information of the conference and conference members. The latest status, after receiving the response, the Web page or the client displays the specific status information of the member. 7. The method according to any one of claims 1 to 6, wherein the client is a client supporting the HTTP protocol. 8. A realization system of multimedia conference, it is characterized in that, the system comprises: login module, Conf WS module, Conf AS module, MRS module; Wherein, Login module, for providing Web page or client, the user logs in described Web page or client by login module, sends the request of the creation meeting that carries meeting attribute information to Conf WS module by Post mode, adds meeting member; The Conf WS module is used to receive the request for creating a meeting place and the request for inviting conference members sent by the login module, and send the request to the Conf AS module; The Conf AS module is used to receive the request for creating a conference site and the request for inviting conference members sent by the Conf WS module, initialize the conference attributes according to the conference attribute information, and send the request for creating a conference site to the MRS module to hold a conference for conference members Provide a platform; The MRS module is configured to create a conference site after receiving a request to create a conference site, and the MRS module to create a conference site includes sending its own information and the conference attribute information to the terminals where the conference members are located in the form of media streams, and obtaining the conference members' location. Terminal information, allocate media resources and open media channels. 9 . The system according to claim 8 , wherein the login module is also used for the user to log in to the web page or end the meeting with the client. 10. The system according to claim 8 or 9, wherein the intercommunication between the Conf AS and ConfWS uses a TCP message or a BFCP message.