Quality adaptive streaming method using temporal scalability and system thereof

PURPOSE: A quality-adaptive multimedia data streaming method and a system thereof are provided to off the improved service quality to a user as improving the stability of a network. CONSTITUTION: A butter state determining module(130) calculates a presumptive value of the data amount buffered in a buffer(210) of a client terminal(200), and determines the buffer state of a client terminal at a specific time. A transfer rate calculating module(150) calculates the average transfer rate of TCP traffic through feedbag message information, and calculates the transfer rate of a multimedia data stream. A network state determining module(140) determines the network state through the feedbag message information. A quality-adaptive module(160) controls the number of activated multimedia data frames.