US 12,464,591 B1
Method and system to enhance RRC re-establishment procedure in NR access network
Vikash Kumar, Jharkhand (IN); Akhil Shukla, Karnataka (IN); Allen Job, Kerala (IN); Palani Lakshamanan, Karnataka (IN); and Dheeraj Kumar, Karnataka (IN)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Oct. 7, 2022, as Appl. No. 17/962,183.
Application 17/962,183 is a continuation of application No. PCT/KR2022/010813, filed on Jul. 22, 2022.
Claims priority of application No. 202141033115 (IN), filed on Jul. 23, 2021; and application No. 202141033115 (IN), filed on Jun. 17, 2022.
Int. Cl. H04W 76/19 (2018.01); H04L 1/1812 (2023.01); H04W 72/23 (2023.01); H04W 76/20 (2018.01)
CPC H04W 76/19 (2018.02) [H04L 1/1812 (2013.01); H04W 72/23 (2023.01); H04W 76/20 (2018.02)] 12 Claims
OG exemplary drawing
 
1. A method performed by a network apparatus for handling a radio resource control (RRC) re-establishment procedure in a wireless network, the method comprising:
receiving, from a user equipment (UE), an RRC re-establishment request in accordance with a radio link failure being detected in the UE;
transmitting, to the UE, a downlink RRC re-establishment message;
receiving, from the UE, a hybrid automatic repeat request (HARQ) level acknowledgement for the transmitted downlink RRC re-establishment message;
transmitting, to the UE, downlink control information (DCI) including a pre-emptive uplink resource grant in response to receiving the HARQ level acknowledgement for the transmitted downlink RRC re-establishment message; and
receiving, from the UE, an RRC re-establishment complete message uplink resources of the pre-emptive uplink resource grant.