다중 셀 환경에서의 동기식 ＯＦＤＭ 수신 장치 및 그 방법
김준우, 정재근, 박윤옥
- 7801088 (2010.09.21)
- 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 제안 키워드
- 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