Patent ID: 8838089
Filing Date: 2014-09-16
Classification: H04W

Abstract:
1. A method of improving Radio Resource Control (RRC) connection establishment for an RRC layer of a user equipment (UE) in a wireless communication system, the method comprising: receiving a connection request message from a Non Access Stratum (NAS) layer of the UE, for initiating an RRC connection establishment procedure; when a cell reselection or a cell barred occurs during an RRC connection establishment procedure, initiating the RRC connection establishment procedure based on completion of the cell reselection or the cell barred even if a waiting time does not finish yet, wherein the waiting time starts when the NAS layer of the UE receives a connection request failure message corresponding to the occurrence of the cell reselection or the cell barred or when the NAS layer of the UE transmits a service request message to the RRC layer of the UE; and aborting the RRC connection establishment procedure, after the RRC layer of the UE receives a request for aborting the RRC connection establishment procedure from the NAS layer after the cell reselection or the cell barred is completed.