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:
May. 13, 2014
Filed:
Feb. 13, 2012
Jin Kyu Han, Seoul, KR;
Cheol Mun, Gyeonggi-do, KR;
Sung Tae Kim, Gyeonggi-do, KR;
Youn Sun Kim, Gyeonggi-do, KR;
Jong Kwan Yook, Seoul, KR;
Jin Kyu Han, Seoul, KR;
Cheol Mun, Gyeonggi-do, KR;
Sung Tae Kim, Gyeonggi-do, KR;
Youn Sun Kim, Gyeonggi-do, KR;
Jong Kwan Yook, Seoul, KR;
Abstract
A transmission method and apparatus utilizing Multiple-Input and Multiple-Output (MIMO) precoding based on Distributed Antenna Systems (DASs) are provided. The transmission method includes determining active antenna ports, for a User Equipment (UE) having multiple receive antennas, from among a plurality of Distributed Antenna Ports (DAPs) evenly placed in a service area; assigning a Multiple-Input and Multiple-Output (MIMO) mode to the UE and notifying the UE of the MIMO mode assignment; determining a signal precoding vector on a basis of feedback information for the MIMO mode received from the UE; and precoding a signal using the signal precoding vector and transmitting the precoded signal through the active antenna ports.