The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2019
Filed:
Nov. 26, 2007
Eung-sun Kim, Suwon-si, KR;
Jong-hyeuk Lee, Seongnam-si, KR;
Jae-hak Chung, Seoul, KR;
Ho-jin Kim, Seoul, KR;
Joo-hwan Chun, Daejeon, KR;
Kyung-chun Lee, Daejeon, KR;
Il-han Kim, Daejeon, KR;
Eung-Sun Kim, Suwon-si, KR;
Jong-Hyeuk Lee, Seongnam-si, KR;
Jae-Hak Chung, Seoul, KR;
Ho-Jin Kim, Seoul, KR;
Joo-Hwan Chun, Daejeon, KR;
Kyung-Chun Lee, Daejeon, KR;
Il-Han Kim, Daejeon, KR;
Abstract
A method for assigning a single frequency sub-channel to a plurality of MSs (Mobile Stations) in an OFDM (Orthogonal Frequency Division Multiplexing) system utilizing SDM (Spatial Division Multiplexing) with multiple transmit/receive antennas. In the method, a BS (Base Station) can effectively assign a pilot channel to estimate a downlink channel. The BS divides the single frequency sub-channel into a plurality of spatial channels, and sequentially assigns the plurality of spatial channels to the MSs having the maximum communication capacity, thereby transmitting signals of the MSs through the single frequency sub-channel.