Invention Grant
- Patent Title: Frequency offset compensation improvement for a long term evolution (LTE) searcher
- Patent Title (中): 长期演进(LTE)搜索器的频偏补偿改进
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Application No.: US13594899Application Date: 2012-08-27
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Publication No.: US08879679B2Publication Date: 2014-11-04
- Inventor: Chris T. Quanbeck
- Applicant: Chris T. Quanbeck
- Applicant Address: US IL Libertyville
- Assignee: Motorola Mobility LLC
- Current Assignee: Motorola Mobility LLC
- Current Assignee Address: US IL Libertyville
- Agency: Leydig, Voit & Mayer, Ltd.
- Main IPC: H04B1/10
- IPC: H04B1/10

Abstract:
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.
Public/Granted literature
- US20140056392A1 FREQUENCY OFFSET COMPENSATION IMPROVEMENT FOR A LONG TERM EVOLUTION (LTE) SEARCHER Public/Granted day:2014-02-27
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