Patent ID: 8190144

Claim:
A method of receiving updated system information in a wireless communication system, the method comprising: receiving system information comprising a value; receiving, by a terminal via a downlink shared control channel, a notification for changing of the system information, wherein the notification is one of a plurality of notifications that are each received during one of a plurality of modification periods, wherein each period of the plurality of modification periods has boundaries which are defined based on a System Frame Number (SFN) and the value of the system information; determining, for each of the plurality of modification periods, if there is a change in the system information based on the received notification; if there is a change in the system information, then receiving, by the terminal, an updated system information during a modification period of the plurality of modification periods, wherein the updated system information is received via a downlink shared data channel; wherein changes of the system information only occur at respective modification periods of the plurality of modification periods.