US 12,445,189 B2
Sidelink failure detection and recovery
Karthikeyan Ganesan, Kronberg im Taunus (DE); Prateek Basu Mallick, Dreieich (DE); Joachim Loehr, Wiesbaden (DE); Alexander Johann Maria Golitschek Edler von Elbwart, Darmstadt (DE); Ravi Kuchibhotla, Chicago, IL (US); and Vijay Nangia, Woodridge, IL (US)
Assigned to Lenovo (Singapore) Pte. Ltd., Singapore (SG)
Filed by Lenovo (Singapore) PTE. LTD., New Tech Park (SG)
Filed on Jul. 6, 2022, as Appl. No. 17/858,814.
Application 17/858,814 is a continuation of application No. 16/780,179, filed on Feb. 3, 2020, granted, now 11,425,775.
Claims priority of provisional application 62/800,031, filed on Feb. 1, 2019.
Prior Publication US 2022/0346175 A1, Oct. 27, 2022
Int. Cl. H04B 7/06 (2006.01); H04W 76/14 (2018.01); H04W 76/19 (2018.01)
CPC H04B 7/06966 (2023.05) [H04W 76/14 (2018.02); H04W 76/19 (2018.02)] 15 Claims
OG exemplary drawing
 
1. A first user equipment (UE), comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the first UE to:
establish a PC5 radio resource control (PC5-RRC) connection for sidelink unicast communication with a second UE;
transmit the sidelink unicast communication over the PC5-RRCconnection;
detect a sidelink failure for the PC5-RRC connection based at least in part on reception of a hybrid automatic repeat request (HARQ) feedback on a physical sidelink feedback channel (PSFCH);
declare the sidelink failure for the PC5-RRC connection based at least in part on detecting the sidelink failure; and
increment a value of a counter in response to the sidelink failure.