A method is disclosed that is capable of appropriately assigning radio resource even when a propagation quality changes. After receiving the required communication rate from the mobile station, the base station measures the maximum used radio resource, and multiplies the maximum used radio resource by...http://www.google.com.tw/patents/US20040097240?utm_source=gb-gplus-share專利 US20040097240 - Admission control method and device in mobile communication system