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:
Oct. 02, 2018
Filed:
Jun. 13, 2017
At&t Intellectual Property I, L.p., Atlanta, GA (US);
Yuang Lou, Dunwoody, GA (US);
Douglas A. Duet, Roswell, GA (US);
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Abstract
A wireless communications system combines Multiple Input/Multiple Output (MIMO), beamforming, and Orthogonal Frequency Division Multiple Access (OFDMA) techniques to increase spectral efficiency. A method includes transmitting first data in a first beam of electromagnetic signals focused on a first user equipment and generated by a first antenna array. The first data is associated with the first user equipment. The first data is transmitted using a first OFDMA resource block of a time slot of a radio frame and first beamforming weights. The method includes transmitting second data in a second beam of electromagnetic signals focused on a second user equipment and generated by the first antenna array. The second user equipment is spatially diverse from the first user equipment. The second data is associated with the second user equipment. The second data is transmitted using the first OFDMA resource block of the time slot and second beamforming weights.