| US 7,508,891 B2 | ||
| Method for feeding back antenna shuffling information in a multiple-input multiple-output system using a multiple space-time block coding technique | ||
| Young-Ho Jung, Yongin-si (Korea, Republic of); Seung-Hoon Nam, Seoul (Korea, Republic of); Yong-Hoon Lee, Daejeon (Korea, Republic of); Jin-Gon Joung, Seoul (Korea, Republic of); Woo-Seok Nam, Busan (Korea, Republic of); and Woo-Hyuk Chang, Gyeongsan-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., (Korea, Republic of); and Korea Advanced Institute of Technology (KAIST), (Korea, Republic of) | ||
| Filed on Jul. 14, 2005, as Appl. No. 11/181,147. | ||
| Claims priority of application No. 10-2004-0056304 (KR), filed on Jul. 20, 2004. | ||
| Prior Publication US 2006/0018415 A1, Jan. 26, 2006 | ||
| Int. Cl. H04B 7/10 (2006.01); H04B 1/00 (2006.01) | ||
| U.S. Cl. 375—347 [375/148] | 14 Claims |
| 1. A method for feeding back antenna shuffling information of transmitted signals in a multiple-input multiple-output (MIMO)
system, comprising the steps of:
receiving, through two reception antennas, signals transmitted from four transmit antennas;
computing mean square error values of the received signals in relation to antenna shuffling information indices of the transmitted
signals; and
feeding back an index of an antenna shuffling having a minimum mean square error value from among the mean square error values,
wherein the index of the antenna shuffling is determined using channel matrix S, where
 hi,j is a channel gain value between a j-th Tx antenna and an i-th Rx antenna.
|