Patent ID: 8275988

Claim:
A method for communicating between a network and a mobile terminal, the method comprising: receiving, by the mobile terminal from the network, at least one configuration parameter related to system information prior to establishing a Radio Resource Control (RRC) connection with the network; and transmitting, by the mobile terminal to the network, an RRC connection request message for establishing the RRC connection with the network, wherein the at least one configuration parameter comprises a system frame number (SNF), radio first layer (L1) parameters, and radio access channel (RACH) parameters, wherein the RRC connection request message includes information for verifying authenticity of the at least one configuration parameter, wherein the information is calculated by using only a configuration parameter that is known by the network and at least an integrity key or a checksum value, and wherein the checksum value, which is calculated at the mobile terminal using the at least one configuration parameter, is a unique identifier for identifying the at least one configuration parameter.