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. 24, 2019

Filed:

May. 08, 2015
Applicant:

Motorola Solutions, Inc., Chicago, IL (US);

Inventors:

Yong Tian, Chengdu, CN;

Li-Ya Mi, Chengdu, CN;

Zhong Wei, Chengdu, CN;

Kang-Kai Zhao, Chengdu, CN;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 3/42 (2006.01); H04W 76/40 (2018.01); H04M 3/56 (2006.01); H04W 4/16 (2009.01); H04W 8/18 (2009.01);
U.S. Cl.
CPC ...
H04W 76/40 (2018.02); H04M 3/42221 (2013.01); H04M 3/56 (2013.01); H04W 4/16 (2013.01); H04M 2203/2088 (2013.01); H04M 2203/305 (2013.01); H04W 8/18 (2013.01);
Abstract

Missed voice stream portions are replayed at a late entry subscriber device (SD) in a wireless radio network. The SD joins a voice call on a radio channel via a base station and detects that it is late to the call. The SD continues to receive a remaining portion of the call and plays back the portion of the call. The SD detects an end of the voice call, and (i) transmits a request message including an indication of a first duration of the portion of the call received or (ii) detects a similar message from another SD. The SD then receives an indication of a total duration of the voice call and calculates a third duration as a function of the total duration and the first duration. The SD receives and plays back the missed portion of the call for the third duration.


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