Disclosed are a method for receiving control information and a terminal device using the same. The terminal is able to receive a non-user-specific A-MAP IE of a specific sub-frame from a base station according as a broadcasting message is transmitted from the specific sub-frame, wherein the non-user-specific A-MAP IE includes an indicator showing that the non-user-specific A-MAP IE is configured in an extended form. The terminal can also obtain scheduling information based on the received indicator, wherein the scheduling information is configured by the type of the extended non-user-specific A-MAP IE. Then, the terminal is capable of decoding the broadcast message in a certain sub-frame based on the obtained scheduling information.