Search International and National Patent Collections

1. (WO2018138163) RE-ESTABLISHING A RADIO RESOURCE CONTROL CONNECTION

Pub. No.:    WO/2018/138163    International Application No.:    PCT/EP2018/051748
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Thu Jan 25 00:59:59 CET 2018
IPC: H04W 12/06
H04W 76/19
H04W 4/70
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: LEHTOVIRTA, Vesa
WIFVESSON, Monica
NAKARMI, Prajwol, Kumar
Title: RE-ESTABLISHING A RADIO RESOURCE CONTROL CONNECTION
Abstract:
A method for re-establishing a Radio Resource Control, RRC, connection between a User Equipment (1), UE, and a target evolved NodeB (3), target eNB, the method being performed by the target eNB and comprising: receiving an RRC connection re-establishment request from the UE (1), wherein the RRC connection re-establishment request includes an authentication token generated with a Non Access Stratum integrity key as input; sending a verification message to a Mobility Management Entity (4), MME, wherein the verification message includes the received authentication token; receiving a response from the MME, of verification of the authentication token. Disclosed are also methods for the UE, MME, and a source eNB, as well as the apparatus themselves and computer programs and computer program products therefore.