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:
Aug. 28, 2018
Filed:
Mar. 19, 2015
Nec Corporation, Minato-ku, Tokyo, JP;
Duong Pham, Mulgrave, AU;
Yasushi Maruta, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A system includes an eNB which is operable to communicate with one or UEs and a set of multiple transmit antennas associated with the eNB. The antennas are partitioned into multiple antenna subsets. In a first form of the method, one of the antennas is designated as a reference antenna and the reference antenna forms part of each antenna subset. In a second form of the method, one of the subsets is designated as a reference subset. The UE(s) are operable to compute multiple PMIs for the respective multiple subsets and to report the multiple PMIs to the eNB for the eNB to use in precoding. The first form involves computing a PMI for a given antenna subset independently of the PMIs of any of the other antenna subsets. The second form involves computing a PMI for a given subset based on or using the PMI for the reference subset.