Methods and devices to reestablish a Radio Relay Control (RRC) connection

摘要

A method for re-establishing a Radio Resource Control connection, RRC, between a User Equipment (1), UE, and a target evolved NodeB (3), target eNB, the method being carried out by the UE (1) , and comprising: receiving (S100) an RRC Connection Restore message from the target eNB (3), the RRC Connection Restore message including a downlink authentication sample signal, DL, which has been generated by a Mobility Management Entity (4) and having had a Non-Access Stratum integrity key as input, and authenticating (S110) the received DL authentication sample signal.