Patent ID: 7693537
Filing Date: 2010-04-06
Classification: H04W

Abstract:
1. A transmission rate control method wherein a mobile station controls a transmission rate of an uplink channel, based on a scheduling grant signal notified by a radio base station, in an EUL scheme, comprising: notifying, at a radio network controller, at a timing of a call setup, a primary allowable transmission rate of the uplink channel to the mobile station, by a layer-3 message; starting, at the mobile station, when data to be transmitted is generated after the call setup, transmission of the data by the uplink channel, at a transmission rate which is equal to or lower than the primary allowable transmission rate; transmitting, at the radio base station, an absolute grant signal as the scheduling grant signal, to the mobile station, by a layer-2 message; and controlling, at the mobile station, the transmission rate of the uplink channel, based on the absolute grant signal transmitted from the radio base station.