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. 21, 2018

Filed:

Jan. 12, 2016
Applicant:

Andrew Wireless Systems Gmbh, Buchdorf, DE;

Inventors:

Daniel Schwab, Gersthofen, DE;

Thomas Kummetz, Kissing, DE;

Alfons Dussmann, Gansheim, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 3/06 (2006.01); H04L 5/14 (2006.01); H04W 72/04 (2009.01); H04W 88/08 (2009.01); H04B 7/024 (2017.01); H04W 24/02 (2009.01); H04B 7/022 (2017.01);
U.S. Cl.
CPC ...
H04J 3/0638 (2013.01); H04B 7/024 (2013.01); H04L 5/1469 (2013.01); H04W 24/02 (2013.01); H04W 72/0446 (2013.01); H04W 88/085 (2013.01); H04B 7/022 (2013.01); H04J 3/0685 (2013.01);
Abstract

A switching control module can optimize time division duplexing operations of a distributed antenna system ('DAS'). The switching control module can include a measurement receiver and a processor. The measurement receiver can measure signal powers of downlink signals in a downlink path of the DAS. The processor can determine start times for downlink sub-frames transmitted via the downlink path based on downlink signal powers measured by the measurement receiver exceeding a threshold signal power. The processor can identify a clock setting that controls a timing of switching signals used for switching the DAS between an uplink mode and a downlink mode. The processor can statistically determine a switching time adjustment for the clock setting based on switching time differentials between the clock setting and the start times. The processor can update the clock setting based on the switching time adjustment.


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