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High Capacity and Wide Coverage Cell Station for Personal Communication Systems

Kiyoshi KOBAYASHI, Tomoaki KUMAGAI, Shuji KUBOTA, Shigeaki OGOSE, Takeshi HATTORI

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Summary :

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.

Publication
IEICE TRANSACTIONS on Communications Vol.E82-B No.1 pp.112-119
Publication Date
1999/01/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Communication Systems and Transmission Equipment

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