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.

Date of Patent:
Dec. 12, 2017

Filed:

Apr. 30, 2015
Applicant:

Interdigital Patent Holdings, Inc., Wilmington, DE (US);

Inventors:

Kyle Jung-Lin Pan, Saint James, NY (US);

Donald M. Grieco, Manhasset, NY (US);

Robert L. Olesen, Huntington, NY (US);

Assignee:

InterDigital Patent Holdings, Inc., Wilmington, DE (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/04 (2017.01); H04L 5/00 (2006.01); H04W 72/04 (2009.01);
U.S. Cl.
CPC ...
H04B 7/0486 (2013.01); H04L 5/0091 (2013.01); H04W 72/0413 (2013.01);
Abstract

A method and apparatus for measuring and reporting a rank and/or a precoding matrix for multiple-input multiple-output (MIMO) communication are disclosed. A metric indicating a channel condition is measured and a rank is selected based on the metric. The metric may be a signal-to-interference and noise ratio (SINR), throughput, a block error rate (BLER), system capacity, a sum rate, or the like. An SINR for each radio block group (RBG) for each rank is calculated. A data rate is calculated for each RBG based on the SINR for each rank. An overall rate for all RBGs is calculated for each rank. At least one rank is selected based on the overall rate. At least one precoding matrix may be selected jointly with or separately from the at least one rank.


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