Patent ID: 8837443

Claim:
A method performed by a base station apparatus, comprising: transmitting a paging message with a notification of changing a first access barring parameter, wherein the first access barring parameter is included in a specific system information block which is different from a System Information Block Type 2 which includes a second access barring parameter, the paging message is also used as a notification of a change of system information including changing the second access barring parameter due to modification during a next modification period, the second access barring parameter in the System Information Block Type 2 is not changed within a present modification period and is required to wait for the next modification period to change, and the first access barring parameter in the specific system information block is updateable during the present modification period and is not required to wait for the next modification period to change; adjusting the first access barring parameter in the specific system information block to bar access from specific user equipment; and transmitting the adjusted first access barring parameter in the specific system information block.