Method and apparatus for estimating and controlling initial...

Details Method and apparatus for estimating and controlling initial... Method and apparatus for estimating and controlling initial...

2006-05-02

2006-05-02

Gelin, Jean (Department: 2681)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C455S234100, C455S240100

Reexamination Certificate

active

07039378

ABSTRACT:
In a time-division duplex (TDD) system, a reliable initialization scheme that is applicable to an automatic gain controller (AGC) at a base station is implemented in various forms depending on the availability of certain information such as signal-to-interference ratio (SIR), spreading factors and other parameters. A more accurate estimation of the initial control word of a gain-adjustable amplifier for one or more time slots is implemented. The scheme is applicable to AGC initialization for each time slot of the TDD system, but is also applicable to other systems of transmission, without limitation.

REFERENCES:
patent: 3944942 (1976-03-01), Chudleigh, Jr.
patent: 5631921 (1997-05-01), Schilling
patent: 6002713 (1999-12-01), Goldstein et al.
patent: 6025720 (2000-02-01), Lenz et al.
patent: 6167244 (2000-12-01), Tomoe

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