| US 7,532,599 B2 | ||
| Apparatus and method for allocating user in a multiple antenna mobile communication system supporting multi-user diversity | ||
| Eung-Sun Kim, Suwon-si (Korea, Republic of); Jae-Sang Ham, Yongin-si (Korea, Republic of); Jong-Hyeuk Lee, Seongnam-si (Korea, Republic of); Chung-Yong Lee, Seoul (Korea, Republic of); Sei-Joon Shim, Seoul (Korea, Republic of); and Kyeong-Yeon Kim, Seoul (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd, (Korea, Republic of); and Yonsei University, (Korea, Republic of) | ||
| Filed on Mar. 14, 2006, as Appl. No. 11/374,735. | ||
| Claims priority of application No. 10-2005-0021190 (KR), filed on Mar. 14, 2005. | ||
| Prior Publication US 2006/0203777 A1, Sep. 14, 2006 | ||
| Int. Cl. H04W 4/00 (2006.01); H04W 72/00 (2006.01); H04J 11/00 (2006.01); H03C 7/02 (2006.01); H04B 1/02 (2006.01); H04B 7/02 (2006.01); H04B 17/02 (2006.01); H04B 1/00 (2006.01); H04B 7/00 (2006.01) | ||
| U.S. Cl. 370—334 [370/203; 370/329; 455/101; 455/133; 455/450; 455/69] | 10 Claims |
| 1. A method of allocating a terminal in a spatial multiplexing multi-input multi-output (SM-MIMO) system, the method comprising
the steps of:
calculating, by each of a plurality of terminals, an effective signal-to-interference noise ratio (SINR) of each of a plurality
of channels over each of a plurality of possible detection orders;
selecting, by each of the terminals, a detection order that minimizes a highest of error probabilities of the channels from
among the detection orders, wherein each of the error probabilities is based on a product of a minimum symbol distance of
a modulation scheme to be used in one of the channels and the effective SINR of the one of the channels;
transmitting, by each of the terminals, to a base station, the selected detection order and modulation schemes to be used
in the channels in accordance with the selected detection order;
selecting, by the base station, a terminal with a lowest average of the error probabilities from among the terminals using
detection orders received from the terminals; and
setting, by the base station, the modulation schemes to be used in the channels, according to the detection order corresponding
to the selected terminal,
wherein the detection order selecting step comprises selecting the detection order by
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