Patent №
US 8,879,679
Granted
2014-11-04
Filed 2012
Owner
MOTOROLA MOBILITY LLC
Lab
—
AI components
1
hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
13594899
A method and system provide frequency offset compensation in a wireless communication device. A frequency offset compensation module (FOCM) correlates a received reference signal with sub-replica reference sequences to obtain a vector of matched filter output values associated with a time offset identified by a correlation time index value. The FOCM determines a correlation score vector using a combined energy associated with matched filter output values. The FOCM then determines a first phase difference based on matched filter output values corresponding to adjacent sub-replica sequences. The FOCM computes a second phase difference by linearly combining a selected first phase difference and at least one neighbor first phase difference having a second correlation time index value that differs from a first correlation time index value of the selected first phase difference. The FOCM uses the second phase difference to provide compensation for a frequency offset associated with received signals.
AI classification
Ownership
MOTOROLA MOBILITY LLC
assignment · 288480845
Assignors
QUANBECK, CHRIS T.
On an employer assignment, the assignors are typically the inventors.