Invention Grant
US09385909B2 Detecting repeated preamble symbols using over-sized discrete fourier transforms
有权
使用超大型离散傅立叶变换来检测重复的前导码符号
- Patent Title: Detecting repeated preamble symbols using over-sized discrete fourier transforms
- Patent Title (中): 使用超大型离散傅立叶变换来检测重复的前导码符号
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Application No.: US14048172Application Date: 2013-10-08
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Publication No.: US09385909B2Publication Date: 2016-07-05
- Inventor: Raja V. Tamma , Kevin Traylor
- Applicant: FREESCALE SEMICONDUCTOR, INC.
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Main IPC: H04L27/26
- IPC: H04L27/26 ; H04L1/00 ; H04L1/08 ; H04L29/08
Abstract:
A technique for detecting symbols includes performing an over-sized discrete Fourier transform (DFT) operation on a received signal that includes at least two repeated symbols. A sum of signal characteristics for subcarriers of one or more possible symbols are determined based on the DFT operation. A sum of signal characteristics for non-subcarriers of the one or more possible symbols is determined based on the DFT operation. Finally, a determination is made as to whether one or more of the one or more possible symbols is detected based on the sum of signal characteristics for the subcarriers and sum of signal characteristics for the non-subcarriers.
Public/Granted literature
- US20150098530A1 Detecting Repeated Preamble Symbols Using Over-Sized Discrete Fourier Transforms Public/Granted day:2015-04-09
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