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:
Feb. 11, 2020
Filed:
Oct. 24, 2017
Apple Inc., Cupertino, CA (US);
Jayesh H. Kotecha, Austin, TX (US);
Jayakrishnan C. Mundarath, Austin, TX (US);
Apple Inc., Cupertino, CA (US);
Abstract
A wireless communication system non-collaborative, multiple input, multiple output (MIMO) space division multiple access (SDMA) system determines subscriber station combining and weighting vectors that yield a high average signal-to-interference plus noise ratio (SINR). Each subscriber station independently transmits information to a base station that allows the base station to determine a weight vector wfor each subscriber station using the determined combining vector of the subscriber station. The icombining vector corresponds to a right singular vector corresponding to a maximum singular value of a channel matrix between a base station and the isubscriber station. Each subscriber station transmits signals using a weight vector, which corresponds to a left singular vector corresponding to a maximum singular value of a channel matrix between the isubscriber station and the base station. The base station uses the weight vector wto determine the signal transmitted by the isubscriber station.