Invention Grant
- Patent Title: Orthogonal frequency division multiplexing access (OFDMA) ranging
- Patent Title (中): 正交频分复用接入（OFDMA）范围
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Application No.: US11531586Application Date: 2006-09-13
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Publication No.: US07675888B2Publication Date: 2010-03-09
- Inventor: Cory S. Modlin , Tarik Muharemovic
- Applicant: Cory S. Modlin , Tarik Muharemovic
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Steven A. Shaw; W. James Brady; Frederick J. Telecky, Jr.
- Main IPC: H04B7/216
- IPC: H04B7/216 ; H04W4/00 ; H04B7/208 ; H04J11/00
Abstract:
A method for Orthogonal Frequency Division Multiplexing Access (OFDMA) ranging is provided. The method includes receiving a signal having OFDMA symbols. An FFT is performed on this signal. Matching ranging codes are found. The power for a given hypothesized ranging code is determined and compared to a power threshold to determine if the code was transmitted. The timing offset and power are reported as the result of ranging.
Public/Granted literature
- US20070058524A1 Orthogonal Frequency Division Multiplexing Access (OFDMA) Ranging Public/Granted day:2007-03-15
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