Patent · US Active

Method and system for automatic gain control during signal acquisition

US7702046B2 · kind B2 · utility

9Cited by

2References

27Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Vinay Murthy · Elmont, US
Linbo Li · San Diego, US
Raghuraman Krishnamoorthi · San Diego, US

Key dates

Filing date	Apr 3, 2006
Grant date	Apr 20, 2010
Priority date	—
Expiry date	Jan 21, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH03G3/3052
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.