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:
Apr. 04, 2023
Filed:
May. 07, 2019
Korea University Research and Business Foundation, Seoul, KR;
Inkyu Lee, Seoul, KR;
Seokju Jang, Seoul, KR;
Abstract
A beamforming method in a simultaneous wireless information and power transfer system and an apparatus therefor may derive a transmission signal transmitted to a plurality of information users and a plurality of energy users from a base station having an N(here, Nis a natural number) number of antennas included in each cell, derive a SINR (Signal to Interference plus Noise Ratio) of an i(here, i is a natural number) information user by using a noise power of the i(here, i is a natural number) information user included in a m(here, m is a natural number) cell, derive a harvested power of a j(here, j is a natural number) energy user included in the m(here, m is a natural number) cell, and perform beamforming by using a transmission signal power at the base station and a total harvested power of the plurality of energy users receiving a transmission signal from the base station. Accordingly, it is possible to improve the effect of minimizing the transmission power of the base station and maximizing the harvested power of the energy users while satisfying the QoS (Quality of Service) and transmission power limitation of the information users.