US 11,838,978 B2
NR PDCP preservation upon RRC resume/suspend
Oumer Teyeb, Montréal (CA); and Gunnar Mildh, Sollentuna (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (PUBL), Stockholm (SE)
Filed on Jul. 28, 2022, as Appl. No. 17/875,714.
Application 17/875,714 is a continuation of application No. 16/648,262, granted, now 11,523,456, previously published as PCT/IB2018/057064, filed on Sep. 14, 2018.
Claims priority of provisional application 62/565,067, filed on Sep. 28, 2017.
Prior Publication US 2022/0369409 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 76/25 (2018.01); H04W 80/02 (2009.01)
CPC H04W 76/25 (2018.02) [H04W 80/02 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for use in a user equipment (UE) of resuming a radio bearer in a wireless communication network, the method comprising:
establishing a radio resource control (RRC) connection with a first network node;
establishing a signaling radio bearer 1 (SRB1) with an NR Packet Data Convergence Protocol (PDCP) configuration;
receiving a connection suspend message from the first network node;
suspending the SRB1;
receiving a connection resume message via the SRB1;
responsive to the connection resume message including PDCP configuration information, configuring the SRB1 with a PDCP configuration; and
resuming the SRB1.