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Channel sounding and estimation strategies for antenna selection in MIMO systems

US9178586B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9178586-B2
Application numberUS-201313953355-A
CountryUS
Kind codeB2
Filing dateJul 29, 2013
Priority dateFeb 1, 2008
Publication dateNov 3, 2015
Grant dateNov 3, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A method of antenna selection, in a MIMO system in which a transmitter having a first plurality of RF chains communicates with a receiver having a second plurality of RF chains, includes transmitting consecutive sounding packets produced by the first plurality of RF chains. The consecutive sounding packets each include a training symbol, and collectively sound a full-size channel for the MIMO system. The method also includes receiving channel state information for each of a plurality of scaled sub-channel estimates determined at the receiver. The channel state information includes at least one of respective gain factors that were applied to the consecutive sounding packets received at the receiver and respective scaling factors that were applied to sub-channel estimates determined at the receiver. The method also includes adjusting power levels applied to the first plurality of RF chains in response to receiving the channel state information.

First claim

Opening claim text (preview).

What is claimed: 1. A method of antenna selection in a multiple-input multiple-output (MIMO) system in which a transmitter having a first plurality of radio-frequency (RF) chains coupled to a first plurality of antennas communicates with a receiver having a second plurality of RF chains coupled to a second plurality of antennas, the method comprising: transmitting consecutive sounding packets produced by the first plurality of RF chains, wherein the consecutive sounding packets (…

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Frequently asked questions

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What does patent US9178586B2 cover?
A method of antenna selection, in a MIMO system in which a transmitter having a first plurality of RF chains communicates with a receiver having a second plurality of RF chains, includes transmitting consecutive sounding packets produced by the first plurality of RF chains. The consecutive sounding packets each include a training symbol, and collectively sound a full-size channel for the MIMO s…
Who is the assignee on this patent?
Marvell Int Ltd, Marvell World Trade Ltd
What technology area does this patent fall under?
Primary CPC classification H04B7/0417. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Nov 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).