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:
Dec. 09, 2014
Filed:
Dec. 07, 2011
Cheol Mun, Gyeonggi-do, KR;
Sung Tae Kim, Gyeonggi-do, KR;
Jong Kwan Yook, Seoul, KR;
Youn Sun Kim, Gyeonggi-do, KR;
Jin Kyu Han, Seoul, KR;
Cheol Mun, Gyeonggi-do, KR;
Sung Tae Kim, Gyeonggi-do, KR;
Jong Kwan Yook, Seoul, KR;
Youn Sun Kim, Gyeonggi-do, KR;
Jin Kyu Han, Seoul, KR;
Abstract
Feedback methods and apparatuses are provided for efficiently feeding back downlink Channel State Information (CSI) using limited information in a DAS-based wireless communication system. A method includes determining, by a receiver, a candidate Antenna Port (AP) set from among a plurality of APs; selecting an active AP set from the candidate AP set; and transmitting the candidate AP set, the active AP set, and the downlink CSI of active APs included in the active AP set.