Invention Grant
- Patent Title: Preamble detection using frequency based correlation
- Patent Title (中): 使用基于频率的相关性的前导码检测
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Application No.: US11635886Application Date: 2006-12-08
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Publication No.: US07606139B2Publication Date: 2009-10-20
- Inventor: Eyal Bick , Uri Perlmutter , Yuval Lomnitz
- Applicant: Eyal Bick , Uri Perlmutter , Yuval Lomnitz
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Lee & Hayes, PLLC
- Main IPC: H04J11/00
- IPC: H04J11/00
Abstract:
A method for detecting a preamble location in a multiple preamble OFDM (Orthogonal Frequency Division Multiplexing) system is disclosed. An OFDM signal is generated with a plurality of frames, and each of the frames includes symbols and a predetermined preamble symbol. A maximum FDDC (Frequency Domain Differential Correlator) value is computed for each of the symbols in some of the frames. The preamble location in a frame is determined by summing the maximum FDDC value for each symbol at a same frame location in consecutive frames of the OFDM signal.
Public/Granted literature
- US20080137527A1 Preamble detection using frequency based correlation Public/Granted day:2008-06-12
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