The present invention relates to a ranging method using a bandwidth request code. For this purpose, the present invention provides a ranging method that includes transmitting a bandwidth request code for requesting a bandwidth for uplink traffic transmission from a radio access station, receiving a CDMA_Allocation_IE...http://www.google.de/patents/US20080232330?utm_source=gb-gplus-sharePatent US20080232330 - Method for Ranging with Bandwidth Request Code
