Patent ID: 8185125

Claim:
A transmission rate control method in which a radio base station controls a transmission rate of uplink user data transmitted from a mobile station, comprising: selecting, at the radio base station, from among mobile stations performing communications in a cell, increase-allowed mobile stations whose uplink user data transmission rate can be increased at a predetermined timing; equally dividing, at the radio base station, an available radio resource at the predetermined timing, based on the number of increase-allowed mobile stations or the number of transmission rate control channels that can be transmitted in the cell; adding, at the radio base station, the radio resource equally divided by the radio base station, to each radio resources allocated to each mobile stations to which a transmission rate control channel can be transmitted and is one of the increase-allowed mobile stations; notifying, from the radio base station to each mobile stations to which the transmission rate control channel can be transmitted and is one of the increase-allowed mobile stations, an allowed value corresponding to a radio resource to which the radio resource equally divided by the radio base station has been added; and transmitting, from each mobile stations to which the transmission rate control channel can be transmitted and is one of the increase-allowed mobile stations, the uplink user data at a transmission rate corresponding to the allowed value.