An equalizing and channel coding processor for GSM terminals

Abstract

A bs tra c tA new DSP architecture for equalizing, channel codingldecoding and encryptioddecryption required by GSM hand portable terminals is presented. In the DSP, which is called EQCHAN (Equalizer and Channel codingldecoding processor), these tasks are managed in common units, that is, the data processing unit (DPU) and the bit manipulation unit (BMU). The LSI that contains EQCHAN was designed using 0.8 pm CMOS technology arid its die size is 123mm2. The power consumed in the LSI is 6OmW at 3.6V under continuous communicatioin mode and this value is sufficient for a portable terminal. In this paper, we describe the detail architecture of EQCHAN.