스케일러블 대역폭을 지원하는 단말 수신 장치 및 방법
이문식, 김남일, 박형근, 김일규, 방승찬, 김영훈
- 8619914 (2013.12.31)
- Provided are a receiver and a receiving method for a scalable bandwidth in a mobile station of an Orthogonal Frequency Division Multiplexing (OFDM) system. The receiving method includes the steps of: (a) filtering a received RF signal; (b) oscillating a frequency according to a center frequency control signal to output a local oscillation frequency; (c) down-converting the filtered RF signal by using the local oscillation frequency; (d) scalable-filtering the down-converted signal while adjusting a bandwidth according to a bandwidth control signal; (e) controlling gain of the scalable-filtered signal; (f) converting the gain-controlled analog signal into a digital signal by using a sampling frequency matching with a corresponding bandwidth according to an ADC control signal; and (g) demodulating the converted digital signal, outputting the center frequency control signal, the bandwidth control signal, and the ADC control signal according to control information received from an upper layer.
- KSP 제안 키워드
- ADC control, Analog signal, Bandwidth control, Center frequency, Control Signal, Digital Signal, Down-converting, Frequency control, Frequency division, Frequency division multiplexing, Frequency matching, Local oscillation, Mobile station(MS), Orthogonal frequency division Multiplexing(OFDM), Orthogonal frequency division multiplexing (OFDM) system, Oscillation Frequency, RF signal, Sampling frequency, User equipment(UE), division multiplexing