Method and system for non-orthogonal noise energy based gain con

Details Method and system for non-orthogonal noise energy based gain con Method and system for non-orthogonal noise energy based gain con

1995-08-23

1998-05-19

Marcelo, Melvin

Multiplex communications

Diagnostic testing

Determination of communication parameters

370317, 370320, 375200, 4552263, H04B 169, H04J 1302

Patent

active

057545332

ABSTRACT:
A method and system for processing multiple instances of data using noise energy based gain control is described. A signal is transmitted from a base station and is received along with associated noise energy by a subscriber unit. The non-orthogonal noise energy associated with a signal transmitted to a subscriber unit is measured, and the gain of that signal is adjusted such that the non-orthogonal noise energy is set to a predetermined level. If multiple instances of the signal are received by the subscriber unit, the signals are isolated and the non-orthogonal noise associated with each signal is measured separately. In the preferred embodiment the non-orthogonal noise measurement is performed by demodulation of a low energy channel within a forward link signal processed in accordance with code division multiple access signal processing techniques. A reference value is then divided by the result of this demodulation to calculate a control signal which is used to adjust the gain of a signal associated with a second, higher energy, channel within the forward link signal. The reference value may generated via the use of stored information, or via measurement of another signal that has previously been adjusted to a more optimal energy level.

REFERENCES:
patent: 4225976 (1980-09-01), Osborne et al.
patent: 5448600 (1995-09-01), Lucas
patent: 5559790 (1996-09-01), Yano et al.

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