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:
Jan. 05, 2021

Filed:

Feb. 07, 2020
Applicant:

Andrew Wireless Systems Gmbh, Buchdorf, DE;

Inventors:

Jaroslav Hoffmann, Donauwörth, DE;

Peter Starek, Donauwoerth, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/25 (2013.01); H04B 10/079 (2013.01); H04B 10/2575 (2013.01); H04Q 11/00 (2006.01); H04W 24/08 (2009.01); H04W 88/08 (2009.01); H04B 10/032 (2013.01); G01R 31/28 (2006.01); H04Q 11/06 (2006.01); G01R 31/58 (2020.01); G01M 11/00 (2006.01); H04B 17/00 (2015.01);
U.S. Cl.
CPC ...
H04B 10/07953 (2013.01); G01M 11/00 (2013.01); G01R 31/2822 (2013.01); G01R 31/58 (2020.01); H04B 10/032 (2013.01); H04B 10/079 (2013.01); H04B 10/0795 (2013.01); H04B 10/07955 (2013.01); H04B 10/25752 (2013.01); H04B 10/25754 (2013.01); H04B 10/25758 (2013.01); H04B 17/00 (2013.01); H04Q 11/00 (2013.01); H04Q 11/0067 (2013.01); H04Q 11/06 (2013.01); H04W 24/08 (2013.01); H04W 88/085 (2013.01); H04Q 2011/0081 (2013.01); H04Q 2011/0083 (2013.01);
Abstract

In one embodiment, a distributed antenna system comprises: at least one master unit; at least one remote antenna unit communicatively coupled via a switch to the master unit by a primary cable and a secondary cable both coupled to the switch, the remote antenna unit comprising a compensating link check module that outputs a control signal to the switch, wherein the switch selects between the primary and secondary cable in response to the control signal; wherein the compensating link check module controls the switch to momentarily select the secondary cable to perform a link check during which the remote unit measures a quality metric of a downlink signal received via the secondary cable; and upon initiation of the link check, the compensating link check module adjusts an attenuation of the downlink signal received on the secondary cable by loading calibration settings for the secondary cable into a compensation attenuator.


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