Patent ID: 7403800
Filing Date: 2008-07-22
Classification: H04W

Abstract:
1. In a mobile communication system, a method of setting a reverse activity bit (RAB), the method comprising: measuring a rise over thermal noise-measured (ROTm) representing a load degree of a reverse link; comparing the ROTm with a setup reference value (ROTm_th); setting the RAB to lower data rate of a terminal, when the ROTm is greater than the ROTm_th; enabling a base station to receive and monitor a variation rate of the ROTm (ROT-v), when the ROTm is less than the ROTm_th; dividing the ROTm into at least two states according to the ROT-v; setting the RAB to lower the data rate according to one of the at least two states; and resetting the RAB, when the state of the ROTm is changed after the RAB is set; calculating a RAB set time, when the state of the ROTm is changed, by using the formula: RAB set time=RABSetTimeBystate+RABSetTimeByStateTrans, wherein RABSetTimeBystate is a RAB set time corresponding to the state of the ROTm, and RABSetTimeByStateTrans is a RAB set time corresponding to the transition degree of the state of the ROTm.