Method and apparatus for providing video service in communication system

A method of a proxy server for providing a video service in a communication system, the method comprising:

• establishing, with a terminal, a first transmission control protocol (TCP) session for transmitting and receiving first video data;
• receiving, from the terminal, a request message that requests establishment of a second TCP session when a domain address providing the first video data is comprised in a domain address list comprising domain addresses providing the video service;
• and
• verifying the request message and transmitting, to the terminal, a response message that indicates that the second TCP session is established.

A method of a video server for providing a video service in a communication system, the method comprising:

• receiving, from a terminal, a request message requesting reception of first video data in a maximum available bandwidth;
• transmitting, to the terminal, the first video data in the maximum available bandwidth;
• receiving, from the terminal, a request message requesting reception of the first video data in a first bandwidth within the maximum available bandwidth and a request message requesting reception of second video data in a second bandwidth;
• and
• transmitting the first video data in the first bandwidth and the second video data in the second bandwidth,
• wherein the first bandwidth and the second bandwidth are determined to provide differential image qualities.

An apparatus of a terminal for providing a video service in a communication system, the apparatus comprising:

• a processor configured to:
• request a server to transmit first video data in a maximum available bandwidth,
• determine a first bandwidth for the first video data and a second bandwidth for second video data within the maximum available bandwidth so that the first video data and the second video data have differential image qualities when an event of requesting the second video data is detected, and
• request the server to transmit the first video data in the first bandwidth and to transmit the second video data in the second bandwidth;
• and
• a transceiver configured to:
• receive, from the server, the first video data in the maximum available bandwidth,
• receive the first video data in the first bandwidth, and
• receive the second video data in the second bandwidth from the server.

An apparatus of a proxy server for providing a video service in a communication system, the apparatus comprising:

• a processor configured to establish, with a terminal, a first transmission control protocol (TCP) session for transmitting and receiving first video data;
• a receiver configured to receive, from the terminal, a request message that requests establishment of a second TCP session when a domain address providing the first video data is comprised in a domain address list comprising domain addresses providing the video service;
• and
• a transmitter configured to transmit, to the terminal, a response message that indicates that the second TCP session is established.

An apparatus of a video server for providing a video service in a communication system, the apparatus comprising:

• a receiver configured to receive, from a terminal, a request message requesting reception of first video data in a maximum available bandwidth, a request message requesting reception of the first video data in a first bandwidth within the maximum available bandwidth, and a request message requesting reception of second video data in a second bandwidth;
• and
• a transmitter configured to:
• transmit, to the terminal, the first video data in the maximum available bandwidth,
• transmit the first video data in the first bandwidth, and
• transmit the second video data in the second bandwidth,
• wherein the first bandwidth and the second bandwidth are determined to provide differential image qualities.