Patent ID: 7801222

Claim:
A method for encoding a signal of a wireless communication system, the method comprising: dividing a current frame of the signal into a plurality of GOBs (Groups of Blocks) each having a certain size; determining whether a current GOB to be encoded of the plurality of GOBs is a first GOB of the current frame; calculating a control parameter value of the current GOB according to whether the current GOB is the first GOB of the current frame; controlling an encoding bit rate of the current GOB according to the control parameter value; wherein the encoding bit rate of the current GOB is controlled according to the equation λ 1 n = λ 1 n - 1 + ( B 1 n - 1 B target / g - 1 ) where λ n 1 is the control parameter for encoding the first GOB of the current frame (n th frame), B n−1 1 is the encoding bit rate obtained by encoding the first GOB of a previous frame (n−1 th frame), B target is the target bit rate of the current frame, and g is the number of GOBs of the current frame; and encoding the current GOB.