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Registered FREQUENCY ERROR ESTIMATOR USING SECOND-ORDER LOOP FILTER AND OPERATING METHOD OF THE FREQUENCY ERROR ESTIMATOR

이동통신 시스템에서 2차 루프 필터를 사용하는 주파수 오차 추정기 및 그 동작방법
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Inventors
Seo Seok, Jee Deockgu, Jo Gweon Do, Kim Hyung Jung, Kim Jinup
Application No.
12256112 (2008.10.22)
Publication No.
20090154619 (2009.06.18)
Registration No.
8229046 (2012.07.24)
Country
UNITED STATES
Project Code
07MM1300, Development of Adaptive Radio Access and Transmission Technologies for 4th Generation Mobile Communications, Kim Jinup
Abstract
A frequency error estimator and an operating method of the frequency error estimator are provided. In the frequency error estimator and the operating method of the frequency error estimator, a frequency error between a transmitter and a receiver of a mobile communication system using a reference code is calculated, thereby improving the precision of estimation while reflecting variations in frequency over time.
KSP Keywords
Communication system, Error estimator, Over time, frequency error(FE), loop-filter(LF), mobile communication, mobile communication system, second-order