A SYSTEM AND METHOD FOR ADJUSTING AMPLITUDE OF THE CHANNEL DECODED DATA IN CDMA SYSTEM

摘要

The present invention is a system and method for adjusting the amplitude of the channel decoded data in the CDMA system, the said system includes: a compensation merging module of DPCCH channel, an estimating module of DPDCH channel, a calculating module of DPDCH amplitude-adjusting factor, a DPDCH compensation merging and amplitude adjusting module, wherein, after the calculating module of DPDCH amplitude-adjusting factor receives the compensated and merged physical control channel data, acquires the relationship between the DPDCH data amplitude and the DPCCH data amplitude according to the wireless link parameter of DPCCH and DPDCH, estimates the DPDCH data amplitude according to the DPCCH data amplitude, the input data amplitude required by decoding is divided by the estimated data amplitude, then acquire the adjusting factor; the DPDCH compensation merging and amplitude adjusting module performs channel compensation and multi-path merging function on the de-spreaded data of DDPCH by using the DPDCH channel estimation value, the merged data multiplies the adjusting factor at once to adjust the amplitude. The present invention can reduce the memory consumption during the calculation of the amplitude adjusting, and can distribute the calculation averagely so as to contribute to the stability of the system.