Mobile communication system and control channel setting method i

Details Mobile communication system and control channel setting method i Mobile communication system and control channel setting method i

1997-06-26

1999-08-10

Olms, Douglas W.

Multiplex communications

Duplex

Communication over free space

370337, 370442, H04Q 736, H04Q 1104

Patent

active

059369477

ABSTRACT:
A mobile communication system includes a plurality of radio base stations and mobile stations. The system establishes radio connection between each radio base station and each mobile station by a TDMA-TDD scheme. Each radio base station includes an electric field strength measuring section, a search section, and a transmission timing control section. The electric field strength measuring section measures the reception input voltages of control channels from adjacent radio base stations. The search section searches for a transmission timing corresponding to the reception timing of a control carrier which does not contend with the transmission timings of control carriers in the adjacent radio base stations on the basis of the measurement result obtained by the electric field strength measuring section. The transmission timing control section transmits a carrier signal on the control channel at the searched-out transmission timing. A control channel setting method is also disclosed.

REFERENCES:
patent: 5260944 (1993-11-01), Tomabechi
patent: 5357123 (1994-10-01), Andersson et al.
patent: 5594720 (1997-01-01), Papadopoulaos et al.
patent: 5732073 (1998-03-01), Kusaki et al.
patent: 5761198 (1998-06-01), Kojima
patent: 5818831 (1998-10-01), Otonari

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