Receiver gain management

Details Receiver gain management Receiver gain management

2007-11-06

2007-11-06

Maung, Nay (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Plural receivers

C455S266000, C455S226100, C375S345000

Reexamination Certificate

active

10815261

ABSTRACT:
Noise floor searching is performed for a cellular base station to increase accuracy of receiver gain estimates. This allows adjustment of gain in a radio module to account for gain in front-end devices, and achieve a desired overall receiver target gain. The gain of the RF front-end devices is estimated based on the difference between measured Rx noise power at a receive port of the radio module and the noise floor of the radio module. In one embodiment, frequency sweeping across a receive band using a narrowband filter is done to search for minimum noise power. Interference detection may also be employed to increase awareness of any interfering signals that are presented at a configured channel. It is determined whether the interference is wideband or narrowband.

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