System, method and apparatus for establishing interactive media session based on ip multimedia subsystem

A method for establishing an interactive media session based on IP Multimedia Subsystem, comprising:

• receiving, by a MRF, an interactive service request initiating by a terminal;
• negotiating, by the MRF, an address port for RTSP connection and an address port for RTP connection to interact with the terminal;
• establishing a RTSP connection for interactive control based on the address port for RTSP connection between the terminal and a media control entity of the MRF;
• and
• establishing a RTP connection for media stream delivery based on the address port for RTP connection between the terminal and a media carrier entity of the MRF.

A method for establishing an interactive media session based on an IP Multimedia Subsystem, comprising:

• receiving, by a media control entity, an interactive service request initiated by a terminal via an application server;
• negotiating, by the application server, an address port for RTSP connection to communicate with the terminal and establishing a RTSP connection with the terminal for interactive control;
• negotiating, under the control of the media control entity, by a media carrier entity, an address, port for RTP connection to communicate with the terminal;
• and
• establishing a RTP connection for media stream delivery between the terminal and the media carrier entity.

A method for establishing an interactive media session based on an IP Multimedia Subsystem, comprising:

• receiving, by a media control entity, an interactive service request initiated by a terminal;
• negotiating, under the control of the media control entity, by a media carrier entity, an address port for RTP connection to communicate with the terminal;
• establishing a RTP connection for media stream delivery between the terminal and the media carrier entity;
• delivering a SIP message to an AS by the terminal, wherein the SIP message carries media interactive control information;
• acquiring, by the AS from the SIP message, the media interactive control information and converting the media interactive control information to a RTSP message;
• and
• interacting, between the AS and a MRF, through RTSP messages to exert interactive media control between a user and the MRF.

A method for establishing an interactive media session based on an IP Multimedia Subsystem, comprising:

• receiving, by a media control entity, an interactive service request initiated by a terminal;
• negotiating, by a media carrier entity, an address port for RTP connection to communicate with the terminal under the control of the media control entity;
• establishing a RTP connection for media stream delivery between the terminal and the media carrier entity;
• delivering a SIP message to the media control entity by the terminal, the SIP message carries media interactive control information;
• acquiring, by the media control entity from the SIP message, the media interactive control information and converting the media interactive control information to a H.248 message;
• and
• controlling, by the media control entity, the media carrier entity to interact, so as to realize media interactive control through the H.248 message.

A method for establishing an interactive media session based on an IP Multimedia Subsystem, comprising:

• receiving, by a media stream server which finally provides service, an interactive service request initiated by a terminal;
• negotiating, under the control of a controller inside the media stream server, by the media stream server, an address port for RTP connection to communicate with the terminal;
• establishing a RTP connection for media stream delivery between the terminal and the media stream server;
• providing, by the terminal, media interactive control information through a SIP message extension;
• sending, by the IMS network, the SIP message to an MRF;
• and
• converting, by the MRF, the media interactive control information carried in the SIP message to a RTSP message and exerting media interactive control with a media server already deployed in the network to realize the media interactive control between the terminal and the media stream server which finally provides service.

A system for establishing an interactive media session based on an IP Multimedia Subsystem, comprising an application server, a media control entity and a media carrier entity, wherein the media carrier entity is in communication with a terminal, wherein:

• the terminal is adapted to initiate an interactive service request and establish a Real Time Stream Protocol (RTSP) connection and a Real-time Transport Protocol (RTP) connection;
• the application server is adapted to process the service request;
• the media control entity is adapted to control resource allocation of the media carrier entity;
• and
• the media carrier entity is adapted to allocate, under the control of the media control entity, address ports for a RTSP connection and a RTP connection, and establish the RTSP connection and the RTP connection with the terminal.

A system for establishing an interactive media session based on an IMS Multimedia Subsystem, comprising:

• an application server, a media control entity, and a media carrier entity, wherein the media carrier entity is in communication with a terminal, wherein:
• the terminal is adapted to initiate an interactive service request and establish a Real Time Stream Protocol (RTSP) connection and a Real-time Transport Protocol (RTP) connection;
• the application server is adapted to process the service request;
• the media control entity is adapted to control resource allocation of the media carrier entity, and allocate an address port for RTSP connection to establish a RTSP connection with the terminal;
• and
• the media carrier entity is adapted to allocate an address port for RTP connection under the control of the media control entity and establish a RTP connection with the terminal.