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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.

Patent No.:

US 11943721 B1

PDFFull Text
Date of Patent:
Mar. 26, 2024

Filed:

Nov. 15, 2021

Method and apparatus of operating multiple time alignment timers in mobile communication system supporting carrier aggregation

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Jaehyuk Jang, Suwon-si, KR;

Kyeong In Jeong, Suwon-si, KR;

Assignee:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Attorney:

Jefferson IP Law, LLP

Primary Examiner:

Steve R Young

Int. Cl.
CPC ...
H04W 72/04 (2023.01); H04L 1/18 (2023.01); H04L 1/1829 (2023.01); H04L 1/1867 (2023.01); H04L 5/00 (2006.01); H04W 28/04 (2009.01); H04W 52/02 (2009.01); H04W 52/14 (2009.01); H04W 52/36 (2009.01); H04W 52/50 (2009.01); H04W 52/54 (2009.01); H04W 56/00 (2009.01); H04W 72/0446 (2023.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01); H04W 74/00 (2009.01); H04W 74/08 (2009.01); H04W 76/19 (2018.01); H04L 27/26 (2006.01); H04W 24/04 (2009.01); H04W 48/08 (2009.01); H04W 72/00 (2023.01); H04W 72/0453 (2023.01); H04W 76/38 (2018.01); H04W 84/04 (2009.01); H04W 88/02 (2009.01); H04W 88/06 (2009.01); H04W 88/08 (2009.01); H04W 88/10 (2009.01);
U.S. Cl.
CPC ...
H04W 52/365 (2013.01); H04L 1/1835 (2013.01); H04L 1/1851 (2013.01); H04L 1/1854 (2013.01); H04L 1/1874 (2013.01); H04L 1/1883 (2013.01); H04L 5/001 (2013.01); H04L 5/0048 (2013.01); H04L 5/0098 (2013.01); H04W 28/04 (2013.01); H04W 52/0216 (2013.01); H04W 52/0219 (2013.01); H04W 52/146 (2013.01); H04W 52/367 (2013.01); H04W 52/50 (2013.01); H04W 52/54 (2013.01); H04W 52/545 (2013.01); H04W 56/0005 (2013.01); H04W 56/001 (2013.01); H04W 56/0015 (2013.01); H04W 56/0045 (2013.01); H04W 56/005 (2013.01); H04W 72/0446 (2013.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01); H04W 74/006 (2013.01); H04W 74/0833 (2013.01); H04W 74/085 (2013.01); H04W 74/0858 (2013.01); H04W 74/0891 (2013.01); H04W 76/19 (2018.02); H04L 27/2662 (2013.01); H04W 24/04 (2013.01); H04W 48/08 (2013.01); H04W 72/00 (2013.01); H04W 72/04 (2013.01); H04W 72/0453 (2013.01); H04W 76/38 (2018.02); H04W 84/042 (2013.01); H04W 88/02 (2013.01); H04W 88/06 (2013.01); H04W 88/08 (2013.01); H04W 88/10 (2013.01); Y02D 30/70 (2020.08);
Abstract

A method of operating multiple time alignment timers (TimeAlignmentTimer) is provided for facilitating communication between and evolved Node B (eNB) and a User Equipment (UE) in a Long Term Evolution (LTE) system supporting multiple carriers. The method includes starting a first TAT of a first group including the primary cell, starting a second TAT when Timing Advance (TA) information on a second group not including the primary cell is received; and determining transmission of at least one of a Hybrid Automatic Repeat Request Acknowledgement/Negative-acknowledgement (HARQ ACK/NACK), a physical uplink control channel, and a sounding reference signal according to a start and an expiration of at least one of the first and second TATs.

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