Patent ID: 8085735

Claim:
A wireless communication device for a communication system including data channels and control channels, comprising: a receiver for receiving signals, the signals including data signals sent over the data channels and control signals sent over control channels, said control signals corresponding to said data signals; a control channel demodulator for demodulating said control signals indicating at least one of a packet size and a modulation method; a first memory for storing said received data signals during demodulation of said control signals; a data channel demodulator for loading said received data signals from said first memory, and demodulating said data signals based on said control signals; an accumulator for accumulating said demodulated data signals which have been stored in said first memory; and a second memory for holding results of the accumulated demodulated signals; and wherein said data channel demodulator re-executes demodulating of previously received signals stored in said first memory if a number of retransmission is less than a predetermined value during a retransmission period, wherein said accumulator accumulates the demodulated previously received signals and stores results of the accumulated demodulated previously received signals into said second memory if the number of retransmission is less than said predetermined value during the retransmission period, and wherein said accumulator accumulates said demodulated signals from said data channel demodulator and said results of the accumulated demodulated signals from said second memory, and stores said results of the accumulated demodulated signals into said second memory if the number of retransmission is equal to or more than said predetermined value.