Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Patent
1995-08-31
1998-03-24
Pascal, Leslie
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
455219, 4552321, H04B 110, H04G 320
Patent
active
057323410
ABSTRACT:
The process of the present invention adjusts the input gain by a predetermined amount. The receiver processing measures the gain change in the IF sisal power. If the change is less than the predetermined amount, the CDMA signal and jammers are below the noise floor and, therefore, the gain is increased. If the IF signal power change is equal to the predetermined amount, the CDMA signal is above the noise floor and the interference is minimal. Therefore, in this case, gain adjustment is not necessary, but increasing gain will improve sensitivity. If the IF signal power change is greater than the predetermined amount, the interference is evident and the gain is reduced to reduce the intermodulation products. This process is used until the receiver is operating at the best compromise between interference and noise figure.
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Martin Roger W.
Miller Russell B.
Pascal Leslie
Qualcomm Incorporated
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