发明名称 |
APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIDE INFORMATION OF A PARTIAL TRANSMIT SEQUENCE IN AN OFDM COMMUNICATION SYSTEM |
摘要 |
An Orthogonal Frequency Division Multiplexing (OFDM) communication system that multiplexes data with a plurality of orthogonal sub-carrier frequencies, which includes a transmitter for converting a serial data stream into parallel data, and segmenting the parallel data into a plurality of blocks having a plurality of data blocks; inserting reference data having information representing a phase value and a position into which the reference symbol is inserted, into each of the segmented blocks; Inverse Fast Fourier Transform (IFFT)-transforming the respective blocks into time-based signals where sub-carrier frequencies are separately assigned to the data blocks; and determining phase factors of the IFFT-transformed time-based signals to reduce a Peak-to-Average Power Ratio (PAPR) where non-linear distortion occurs due to coincidence of phases of the data blocks IFFT-transformed with the sub-carrier frequencies, and phase-rotating the IFFT-transformed signals according to the determined phase factors before transmission.
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申请公布号 |
US2008049602(A1) |
申请公布日期 |
2008.02.28 |
申请号 |
US20070860344 |
申请日期 |
2007.09.24 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JUNG KI-HO;RYU HEUNG-GYOOUN;YUN SUNG-RYUL |
分类号 |
H04J11/00;H04J13/00;H04L27/26 |
主分类号 |
H04J11/00 |
代理机构 |
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地址 |
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