Method and apparatus for controlling a power level of a base sta

Details Method and apparatus for controlling a power level of a base sta Method and apparatus for controlling a power level of a base sta

1994-12-13

1996-11-12

Faile, Andrew

Telecommunications

Transmitter and receiver at separate stations

With control signal

455 521, 455 561, 455 63, 455 671, H04B 700

Patent

active

055749844

ABSTRACT:
After setting a base station to a transmit power level (12) which provides a signal at a subscriber unit having a target quality level, a fading characteristic of a communication channel between the subscriber unit and a base site is measured (13). The fading characteristic is then compared with a threshold value (14). The measuring (13) and comparing (14) are repeated until the fading characteristic crosses a threshold (15). Once the fading characteristic crosses the threshold for a receive Eb/No level that is representative of a e.g. static fading condition, the base transmit power that is transmitted to the subscriber is increased by a predetermined amount in anticipation of the need for an increased Eb/No for the case of a faded signal (61). The determination of the fading characteristic and threshold comparison may be performed at either the subscriber unit or the base station.

REFERENCES:
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patent: 5003619 (1991-03-01), Morris et al.
patent: 5239667 (1993-08-01), Kanai
patent: 5245629 (1993-09-01), Hall
patent: 5386589 (1995-01-01), Kanai
Microwave Mobile Communications, Edited by William C. Jakes, Jr., A Wiley-Interscience Publication, 1974.

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