Technologies for compact and low power consumption personal handy-phone system terminals

Shuji Kubota, Kiyoshi Enomoto, Katsuhiko Kawazoe, Tetsu Sakata, Kiyoshi Kobayashi

研究成果: Article査読

抄録

This paper proposes a very low power consumption one-chip baseband LSI for personal communication terminals. It is composed of a π/4 DQPSK modem, an ADPCM codec, a TDMA-TDD controller and an LAPDC controller. The novel circuit configuration makes it possible to significantly reduce the power consumption of the baseband circuits of personal communication terminals. In addition, by using a novel coherent demodulator and an ADPCM codec with a click noise suppressor, it achieves 2approx.3dB higher-quality voice transmission in terms of required Eb/No in fading environments.

本文言語English
ページ(範囲)775-780
ページ数6
ジャーナルNTT R and D
44
9
出版ステータスPublished - 1995
外部発表はい

ASJC Scopus subject areas

  • 電子工学および電気工学

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