US 11,678,236 B2
User equipment, network node and methods in a wireless communications network
Oscar Ohlsson, Bromma (SE); Icaro L. J. Da Silva, Solna (SE); Gunnar Mildh, Sollentuna (SE); and Magnus Stattin, Upplands Väsby (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Jun. 20, 2022, as Appl. No. 17/844,320.
Application 17/844,320 is a continuation of application No. 16/346,793, granted, now 11,399,322, previously published as PCT/SE2019/050177, filed on Mar. 1, 2019.
Claims priority of provisional application 62/732,052, filed on Sep. 17, 2018.
Prior Publication US 2022/0330109 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 76/27 (2018.01); H04W 36/00 (2009.01); H04W 76/18 (2018.01); H04W 84/04 (2009.01)
CPC H04W 36/0079 (2018.08) [H04W 36/0033 (2013.01); H04W 36/0083 (2013.01); H04W 76/18 (2018.02); H04W 76/27 (2018.02); H04W 84/042 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method performed by a User Equipment (UE) for resuming an Radio Resource Control (RRC) connection to a target cell in a wireless communications network, the method comprising:
when the target cell has been found, generating a security token, wherein an input value in a security token generating function of the UE comprises a set of input parameters, which set of input parameters comprises at least a cell identifier of the target cell, wherein the cell identifier of the target cell is selected from a plurality of cell identifiers in system information broadcasted by the target cell and is the cell identifier associated with the first in order of a plurality of Public Land Mobile Network (PLMN) identifiers in the system information broadcasted by the target cell, and wherein the set of input parameters further comprises a Tracking Area Code (TAC) associated to the PLMN or a RAN Area Code (RANAC) associated to the PLMN; and
sending a resuming request to a target network node serving the target cell, which resuming request comprises the security token.