CDMA/TDD Radio Communication System

Details CDMA/TDD Radio Communication System CDMA/TDD Radio Communication System

1995-01-06

1996-09-24

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

375205, 455 134, H04J 1304

Patent

active

055597890

ABSTRACT:
In addition to a structure of a conventional CDMA/TDD radio communication system, a base station includes a pilot signal generating circuit for generating a pilot signal that has a constant transmission power level and is known in mobile units and a pilot channel spreading circuit for transmitting the pilot signal to the mobile units through a transmission line. Each of the mobile units includes a pilot signal reception level measuring circuit for measuring reception power of the received pilot signal and a transmission power control circuit for controlling transmission power of a power amplification circuit based on the measured reception power of the received pilot signal.

REFERENCES:
patent: 5267262 (1993-11-01), Wheatley, III
patent: 5278992 (1994-01-01), Su et al.
patent: 5420850 (1995-05-01), Umeda et al.
Riaz Esmailzadeh, et al, "Power Control in Packet Switched Time Division Duplex Direct Sequence Spread Spectrum Communications"; IEEE Vehicular Technology Society 42nd, VTS Conference, pp. 989-992, 1992.

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