Optimal initial gain selection for wireless receiver

Details Optimal initial gain selection for wireless receiver Optimal initial gain selection for wireless receiver

2011-02-08

2011-02-08

Le, Lana N (Department: 2614)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C455S232100, C455S234100

Reexamination Certificate

active

07885627

ABSTRACT:
An OFDM wireless transceiver uses a digital automatic gain control (AGC) module. The digital AGC module is configured for setting a gain to an initial gain value for mapping a received wireless signal to a first power value for an input circuit having a prescribed input range. The initial gain value is set relative to the prescribed input range and a prescribed signal to noise ratio. If the digital AGC module determines that the first power value of the received wireless signal does not exceed the prescribed input range, the digital AGC module calculates an optimum gain for the received wireless signal relative to the initial gain value and the first power value; if the first power value exceeds the prescribed input range, the AGC module determines the optimum gain based on setting the gain to a minimum gain value.

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