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:
Aug. 02, 2016

Filed:

Jul. 28, 2014
Applicant:

Ceva D.s.p. Ltd., Herzlia Pituach, IL;

Inventors:

Zeev Kaplan, Karmiel, IL;

Noam Dvoretzki, Hod HaSharon, IL;

Eitan Hai, Ramat Gan, IL;

Assignee:

Ceva D.S.P. Ltd., Herzlia Pituach, IL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/06 (2006.01); H04L 25/03 (2006.01); H04B 7/02 (2006.01);
U.S. Cl.
CPC ...
H04L 25/03242 (2013.01); H04B 7/02 (2013.01); H04L 25/03191 (2013.01); H04L 2025/03426 (2013.01);
Abstract

A method and system for soft output multiple-input-multiple-output (MIMO) decoding may include generating a tree-graph based on: MIMO rank, number of bits per layer, and type of modulation, wherein the tree-graph comprises a root node, leaf nodes, nodes, and branches connecting the nodes; performing sphere decoding by determining a radius covering a subset of nodes within said tree-graph; managing, based on the sphere decoding, tables comprising metrics and counter metrics usable for log likelihood ratio (LLR) generation; predicting, based on a specified prediction scheme, counter metrics for paths in the tree-graph that comprise nodes and branches out of the determined radius; and updating the tables comprising the counter metrics with the predicted counter metric, in a case that the predicted counter metrics are better in maximum likelihood terms than the determined counter metrics.


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