FREQUENCY OFFSET COMPENSATION IMPROVEMENT FOR A LONG TERM EVOLUTION (LTE) SEARCHER

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 hardwareH04L 27/0014H04L 27/266H04L 27/2671H04L 27/2675H04L 27/2682H04L 27/2688H04L 2027/0065H04L 2027/0089

AI classification

AI hardware0.74
Vision0.28
Machine learning0.10
Planning0.09
Knowledge representation0.03
Natural language0.00
Evolutionary computation0.00
Speech0.00

Ownership

MOTOROLA MOBILITY LLC

assignment · 288480845

Assignors

QUANBECK, CHRIS T.

On an employer assignment, the assignors are typically the inventors.

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