US 12,395,958 B2
Expiry of time alignment timer
Gautham Prasad, Herndon, VA (US); Ali Cagatay Cirik, Chantilly, VA (US); Esmael Hejazi Dinan, McLean, VA (US); Kai Xu, Great Falls, VA (US); and Hyoungsuk Jeon, Centreville, VA (US)
Assigned to Ofinno, LLC, Reston, VA (US)
Filed by Ofinno, LLC, Reston, VA (US)
Filed on Mar. 8, 2024, as Appl. No. 18/600,343.
Application 18/600,343 is a continuation of application No. PCT/US2023/017801, filed on Apr. 6, 2023.
Claims priority of provisional application 63/336,102, filed on Apr. 28, 2022.
Prior Publication US 2024/0214960 A1, Jun. 27, 2024
Int. Cl. H04W 56/00 (2009.01); H04W 74/0833 (2024.01); H04W 76/20 (2018.01)
CPC H04W 56/0045 (2013.01) [H04W 74/0833 (2013.01); H04W 76/20 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive one or more messages indicating a plurality of timing advance groups (TAGs), the plurality of TAGs comprising:
two primary timing advance groups (PTAGs) for a special cell (SpCell), the two PTAGs comprising
a first PTAG associated with a first time alignment timer (TAT) and
a second PTAG associated with a second TAT; and
a third TAG for a secondary cell (SCell), wherein the third TAG comprises a secondary TAG (STAG) associated with a third TAT;
based on expiries of TATs associated with both the first PTAG and the second PTAG of the two PTAGs of the SpCell, determine all TATs associated with the plurality of TAGs as expired; and
transmit, to a base station via the SpCell, a random-access preamble after all the TATs associated with the plurality of TAGs are expired.