Patent ID: 8289904

Claim:
A method for receiving system information from a base station (BS) supporting a first communication system and a second communication system, the method comprising: searching a frequency band of the first communication system, and receiving a FCH (frame control header) including first information indicating if the second communication system is supported; and receiving system information of the second communication system if the first information indicates that the second communication system is supported, wherein the system information is received via downlink MAP messages, wherein the FCH includes a count value indicating which one of the downlink MAP messages includes the system information, and wherein the count value is subtracted by â€˜1â€™ each time any one of the downlink MAP messages is transmitted, and if the count value becomes â€˜0â€™ at a specific frame, the count value is reset to an initial value at a next frame of the specific frame, the initial value being a value other than â€˜0â€™.