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:
Nov. 15, 2016

Filed:

May. 02, 2012
Applicants:

Anis Husain, San Diego, CA (US);

Jeremy Rode, San Diego, CA (US);

David Smith, San Diego, CA (US);

Mark Hsu, La Jolla, CA (US);

Maha Achour, San Diego, CA (US);

Inventors:

Anis Husain, San Diego, CA (US);

Jeremy Rode, San Diego, CA (US);

David Smith, San Diego, CA (US);

Mark Hsu, La Jolla, CA (US);

Maha Achour, San Diego, CA (US);

Assignee:

ZIVA CORP., San Diego, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 56/00 (2009.01); H04W 84/18 (2009.01); H04B 7/02 (2006.01); H04J 3/06 (2006.01);
U.S. Cl.
CPC ...
H04W 56/0025 (2013.01); H04B 7/024 (2013.01); H04J 3/0682 (2013.01); H04J 3/0638 (2013.01); H04W 56/001 (2013.01); H04W 84/18 (2013.01);
Abstract

Methods and systems for coherent distributed communication techniques using time reversal are disclosed. In one aspect, cooperating nodes of a cluster can move relative to each other and relative to an intended receiver of the nodes' data transmissions. The nodes are synchronized to a common time reference, and data for transmission from the cluster is distributed to the nodes. The intended receiver sends a sounding signal to the nodes. Each node receives the sounding signal, obtains the channel response between the intended receiver and itself, and time-reverses the channel response. Each node then convolves its time-reversed channel response with the data to obtain the node's convolved data. Each node waits a predetermined time following the time reference signal, as determined based on the common time reference. At the expiration of the predetermined time period, the nodes simultaneously transmit their convolved data.


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