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:
May. 07, 2018
Interdigital Technology Corporation, Wilmington, DE (US);
Robert L. Olesen, Huntington, NY (US);
Eldad M. Zeira, Huntington, NY (US);
Peter J. Voltz, Commack, NY (US);
Yongwen E. Yang, Columbia, MD (US);
Qingyuan Dai, Germantown, MD (US);
Chang-Soo Koo, Melville, NY (US);
I-Tai Lu, Dix Hills, NY (US);
KunJu Tsai, Chunan, TW;
INTERDIGITAL TECHNOLOGY CORPORATION, Wilmington, DE (US);
Abstract
A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.