Method for ranging with bandwidth request code

The present invention relates to a ranging method using a bandwidth request code. The present invention to this, periodically transmits a bandwidth request code requesting the bandwidth allocation for transmission of an uplink traffic to a base station, and receives the CDMA_Allocation_IE in the UL-MAP including the radio resource information in the uplink from a base station, through the CDMA_Allocation_IE When viewed ranging run, then adjust the transmission parameter value included in the CDMA_Allocation_IE, determine whether or not the adjusted transmission parameter values ​​the optimal value, and the ranging method of resetting a timer for the periodic ranging is performed and an up therefor It provides CDMA_Allocation_IE structure of the link map. According to the present invention, by transmitting, by including the ranging parameters for a bandwidth request code in the UL-MAP, can reduce the uplink data transmission delay of the subscriber terminals, it does not transmit the RNG_RSP for performing a periodic ranging by the base station in which you can effectively use the downlink bandwidth. Ranging, periodic ranging, and bandwidth request code, CDMA_Allocation_IE