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Registered SYNCHRONOUS ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING RECEIVING APPARATUS IN MULTI-CELL ENVIRONMENT AND METHOD THEREOF
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SYNCHRONOUS ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING RECEIVING APPARATUS IN MULTI-CELL ENVIRONMENT AND METHOD THEREOF
- Inventors
- Kim Jun-Woo, 박윤옥, Jung Jae Gun
- Application No.
- 11720605 (2005.11.10)
- Publication No.
- 20080123517 (2008.05.29)
- Registration No.
- 7801088 (2010.09.21)
- Country
- UNITED STATES
- Abstract
- A receiving apparatus of a mobile terminal receiving a signal in a synchronous OFDM system under a multi-cell environment, including a demodulation start controller performing frame synchronization and cell search using a received signal and outputting information on a demodulation start point and a to-be-demodulated neighbor cell; a FFT unit converting a time-domain signal into a frequency-domain signal; a scramble code generator generating scramble codes for the to-be-demodulated neighbor cell from the demodulation start controller and the current cell; a correlator multiplying a signal from the FFT unit and scramble codes from the scramble code generator and outputting correlation signals; demodulators provided corresponding to a current cell and a maximum number of neighbor cells to be demodulated, and demodulating the correlation signals; and a decoder decoding signals from the demodulators and restoring original information transmitted from the corresponding cell.
- KSP Keywords
- Cell search, Code Generator, Frame synchronization, Frequency division, Frequency division multiplexing, Multi-cell, OFDM systems, Orthogonal frequency division Multiplexing(OFDM), division multiplexing, frequency domain(FD), mobile terminal, time-domain