High capacity and wide coverage cell station for personal communication systems

Kiyoshi Kobayashi, Tomoaki Kumagai, Shuji Kubota, Shigeaki Ogose, Takeshi Hattori

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This paper proposes a new cell station (CS) configuration for personal communication systems. The proposed CS employs a modified coherent demodulator with 4-branch maximal ratio combining diversity and a burst-by-burst automatic frequency control (AFC) to enhance the coverage. The proposed CS also employs an antenna-sharing diversity transmission to incorporate more than one transceiver block, into a small unit with high power efficiency. With these techniques, the BER performance of the uplink control channel (CCH) is flattened regardless of carrier frequency errors within ±12 kHz; the diversity gain of uplink traffic channel (TCH) is improved by 2 dB; the downlink transmission power is reduced by 1.9 dB.

Original languageEnglish
Pages (from-to)112-118
Number of pages7
JournalIEICE Transactions on Communications
Issue number1
Publication statusPublished - 1999
Externally publishedYes


  • Burst-by-burst AFC
  • Cell station
  • Coherent detection
  • Diversity
  • Personal communication

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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