Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2003-07-10
2008-08-12
Yao, Kwang B. (Department: 2616)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
C714S746000
Reexamination Certificate
active
07411903
ABSTRACT:
A method for generating packet-based transmission control parameters includes (a) receiving class information of an audio-video (AV) application and characteristic information of an AV packet, from the AV application, (b) receiving status information of a wireless channel and buffer storage time information of the AV packet, from a medium access control (MAC) layer, and (c) generating and outputting the packet-based transmission control parameters on the basis of the received information. In addition, a selective retransmission method includes (a) transmitting packets of an MPEG-2 frame in real-time, (b) checking for any transmission error after the transmission, and (c) if any transmission error is generated, retransmitting only packets of an I-frame. Therefore, it is possible to efficiently support AV service in wireless communication by dynamically controlling transmission control parameters according to a buffer status and by reflecting the characteristics of the AV frames.
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Hwang Hyo-sun
Jang Kyung-hun
Park Jong-ae
Kao Jutai
Lee & Morse P.C.
Samsung Electronics Co,. Ltd.
Yao Kwang B.
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