Satellite up-link fade control

Details Satellite up-link fade control Satellite up-link fade control

2005-09-20

2005-09-20

Trinh, Sonny (Department: 2687)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S013400, C455S063100, C375S298000

Reexamination Certificate

active

06947741

ABSTRACT:
A method up-link fade control for a satellite not having AGC, includes the steps of determining characteristics for correcting channel non-linearity, each characteristic being determined for a different value of up-link fade. A signal representative of up-link fade is determined by a beacon receiver and the signal is associated with a correction characteristic for the up-link fade. The correction characteristic associated with the signal is applied to a corrector of a modulator such that the corrector changes the modulator characteristics to modify constellation parameters at a satellite receiver.

REFERENCES:
patent: 4752967 (1988-06-01), Bustamante et al.
patent: 6072364 (2000-06-01), Jeckeln et al.
patent: WO 98/28888 (1998-02-01), None
patent: WO 98/45964 (1998-10-01), None
patent: WO 00/01065 (2000-06-01), None
WO 98/45964, Fleming et al, Methods and Apparatus for Controlling Earth-Station Transmitted Power in a VSAT Network. International Publication Date: Oct. 15, 1998.
WO 00/25495, Beech et al, Method and Apparatus for Reducing Distortion of Digital Data. International Publication Date: May 4, 2000.

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