Method and system for automatic gain control during signal acquisition
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United States of America Patent
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Apr 20, 2010
Issued Date -
N/A
app pub date -
Apr 3, 2006
filing date -
Apr 3, 2006
priority date (Note) -
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Abstract
The disclosure is directed to a mobile communication device that includes automatic gain control (AGC) circuitry and operates in either a tracking mode or an acquisition mode. A received signal is sampled n times to calculate an energy estimate that is used to set the gain control values within the AGC circuitry. The value of n varies depending on whether the handset is operating in the acquisition mode or the tracking mode. Acquisition mode is typically considered to be the mode prior to coarse timing acquisition, also referred to as frame acquisition.
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