US 12,261,735 B2
Mobility robustness in a cellular network
Torsten Dudda, Wassenberg (DE); Angelo Centonza, Granada (ES); Mats Folke, Vällingby (SE); Stefan Wager, Espoo (FI); and Emre Yavuz, Stockholm (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on May 18, 2023, as Appl. No. 18/199,149.
Application 18/199,149 is a continuation of application No. 17/227,955, filed on Apr. 12, 2021, granted, now 11,671,310.
Application 17/227,955 is a continuation of application No. 16/704,221, filed on Dec. 5, 2019, granted, now 11,005,704, issued on May 11, 2021.
Application 16/704,221 is a continuation of application No. 14/414,512, granted, now 10,530,639, issued on Jan. 7, 2020, previously published as PCT/EP2015/050271, filed on Jan. 8, 2015.
Claims priority of provisional application 61/968,570, filed on Mar. 21, 2014.
Prior Publication US 2023/0291639 A1, Sep. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 41/0659 (2022.01); H04W 24/02 (2009.01); H04W 24/10 (2009.01); H04W 36/00 (2009.01); H04L 43/0817 (2022.01); H04W 40/12 (2009.01); H04W 40/36 (2009.01); H04W 76/19 (2018.01)
CPC H04L 41/0661 (2023.05) [H04W 24/02 (2013.01); H04W 24/10 (2013.01); H04W 36/0055 (2013.01); H04W 36/0058 (2018.08); H04L 43/0817 (2013.01); H04W 40/12 (2013.01); H04W 40/36 (2013.01); H04W 76/19 (2018.02)] 21 Claims
OG exemplary drawing
 
1. A method, performed by a user equipment, the method comprising:
starting a first timer and a second timer in response to different respective network events, wherein the starting of the first and second timers causes the first and second timers to simultaneously elapse; and
responsive to one of the simultaneously elapsing timers expiring, indicating, to a network node, which of the simultaneously elapsing timers expired.