High quality and very low power consumption one-chip baseband LSIC for personal handy phone system

Masato Mizoguchi, Tetsu Sakata, Kiyoshi Kobayashi, Yoichi Matsumoto, Shuji Kubota, Shuzo Karo

Research output: Contribution to conferencePaper

Abstract

This paper proposes a high-quality and very low power consumption baseband LSIC for the personal handy phone system and shows modem configuration and transmission performance. The developed baseband LSIC is composed of a fully digitalized baseband modulator, a coherent demodulator, an ADPCM voice codec with a click noise suppressor, a hardware implemented TDMA-TDD controller and LAPDC (Layer 2 protocol) controller. It completely meets the Personal Handy Phone System (PHS) standard, the personal communication system in Japan. Experimental results show that the novel coherent demodulator reduces the irreducible frame error rate by 40%, and achieves an Eb/N0 improvement of 3 dB in typical fading environments compared with the conventional demodulator employing differential detection. Moreover, the novel circuit configurations of the modem, ADPCM codec, TDMA-TDD controller and LAPDC controller make it possible to significantly reduce the power consumption of personal terminals. By employing the developed LSIC, a very compact and very long battery life (10 hour talking time) personal communication terminal will be realized.

Original languageEnglish
Pages1262-1266
Number of pages5
Publication statusPublished - 1995 Dec 1
EventProceedings of the 1995 6th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'95. Part 3 (of 3) - Toronto, Can
Duration: 1995 Sep 271995 Sep 29

Other

OtherProceedings of the 1995 6th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'95. Part 3 (of 3)
CityToronto, Can
Period95/9/2795/9/29

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Mizoguchi, M., Sakata, T., Kobayashi, K., Matsumoto, Y., Kubota, S., & Karo, S. (1995). High quality and very low power consumption one-chip baseband LSIC for personal handy phone system. 1262-1266. Paper presented at Proceedings of the 1995 6th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'95. Part 3 (of 3), Toronto, Can, .