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:
Jun. 25, 2019
Filed:
Jan. 24, 2014
Ntt Docomo, Inc., Tokyo, JP;
Anass Benjebbour, Tokyo, JP;
Yoshihisa Kishiyama, Tokyo, JP;
NTT DOCOMO, INC., Tokyo, JP;
Abstract
The present invention is designed to provide a radio base station, a user terminal, a radio communication system and a radio communication method of novel structures that can improve the efficiency of the use of radio resources sufficiently. A plurality of user terminals feed back channel state information to a radio base station, the radio base station selects, from a plurality of candidate user sets and a plurality of power ratio sets, each of the candidate user sets indicating candidates of user terminals to be subject to non-orthogonal-multiplexing over a given radio resource and each of the power ratio sets indicating a transmission power ratio of downlink signals for the user terminals indicated in each of the candidate user sets, a candidate user set and a power ratio set to use in downlink signal transmission, based on the channel state information that is fed back, and transmits downlink signals for a plurality of user terminals indicated in the selected candidate user set using the transmission power ratio indicated by the selected power ratio set, and the selected candidate user set receive the downlink signals.