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 |
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ページ(範囲) | 775-780 |
ページ数 | 6 |
ジャーナル | NTT R and D |
巻 | 44 |
号 | 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