摘要 |
<p>An apparatus and a method for detecting a signal in a communication system using a multi-antenna are provided to estimate a reception signal by considerably reducing the amount of calculation compared with estimation of a reception signal by using an existing QRD(QR Decomposition)-based M algorithm. A receiving end generates a tree structure(502), and determines the first threshold value(504). The receiving end removes a branch with a metric value smaller than the first threshold value(506) and extends each survived candidate symbol as candidate symbols by the number corresponding to a modulation order(508). The receiving end determines a candidate symbol having a minimum accumulated branch metric value as a reception symbol(512), and extends the determined candidate symbol by the number corresponding to the modulation order(514). The receiving end determines a minimum accumulated branch metric value, among the extended candidate symbols, as the second threshold value(516). The receiving end excludes a candidate symbol having a value larger than the second threshold value, among the M number of candidate symbols(518), and extends the surviving candidate symbols by the number corresponding to a modulation order(520). The receiving end determines a candidate symbol corresponding to a minimum accumulated branch metric value as a reception symbol at the third stage(522).</p> |
申请人 |
SAMSUNG ELECTRONICS CO., LTD.;ICU RESEARCH AND INDUSTRIAL COOPERATION GROUP |
发明人 |
LEE, JOO HYUN;YUN, SANG BOH;KWON, YOUNG HOON;HWANG, SUNG SOO;KIM, JONG IN;PARK, HYUN CHEOL;KIM, HYOUN KUK;JEON, KI HWAN |