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:
Sep. 20, 2016

Filed:

Jul. 25, 2013
Applicant:

Motorola Solutions, Inc, Schaumburg, IL (US);

Inventors:

Gabi Ofir, Reshon Letzion, IL;

Baruh Hason, Tel Aviv-Yaffo, IL;

Salomon Serfaty, Gaash, IL;

Assignee:

MOTOROLA SOLUTIONS, INC., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01); H04W 4/00 (2009.01); H04W 72/00 (2009.01); H04L 12/413 (2006.01); H04B 1/00 (2006.01); G06F 15/16 (2006.01); H04W 4/08 (2009.01); H04W 36/36 (2009.01); H04W 36/00 (2009.01); H04W 84/08 (2009.01); H04W 88/04 (2009.01);
U.S. Cl.
CPC ...
H04W 4/08 (2013.01); H04W 36/36 (2013.01); H04W 36/0072 (2013.01); H04W 84/08 (2013.01); H04W 88/04 (2013.01);
Abstract

A method and a system for operating a subscriber unit to seamlessly switch between a trunked mode operation (TMO) and a direct mode operation (DMO) in a communication system. The communication system includes one or more subscriber units communicating in trunked mode operation on a first communication channel via a base station and the subscriber units communicating in direct mode operation on a second communication channel via a direct mode gateway station. When the subscriber units communicate in the TMO and when the signal quality on the first communication channel is below the predetermined threshold, the subscriber units automatically switch to the direct mode operation. When the subscriber units communicate in DMO and when the signal quality on the second communication channel is below the predetermined threshold, the subscriber units automatically switch to the trunked mode operation.


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