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. 07, 2018
Filed:
Jul. 20, 2016
National Tsing Hua University, Hsinchu, TW;
National Tsing Hua University, Hsinchu, TW;
Abstract
A method of joint clustering and precoding and a base station using the same are provided and applicable to a non-orthogonal multiple access (NOMA) system. The method includes: dividing four user equipments into a first cluster and a second cluster each consisting of two user equipments; forming a first cluster signal and a second cluster signal for simultaneous transmission at the base station; establishing a first precoding set and a second precoding set for the first cluster and the second cluster, respectively, by using channel state information between the base station and all the user equipments; selecting a first precoder from the first precoding set and a second precoder from the second precoding set; superposing the first cluster signal multiplied by the first precoder and the second cluster signal multiplied by the second precoder and broadcasting a resulting signal to the user equipments in the first and second cluster.