Patent ID: 7693170
Filing Date: 2010-04-06
Classification: H04W

Abstract:
1. A transmission rate control method for transmission of data according to transmission time intervals (TTI), comprising: transmitting, at a radio base station, via a relative rate grant channel, a command for controlling a transmission rate in uplink to a mobile station; determining, at the mobile station, the transmission rate in a current transmission time interval, based on the command received via the received relative rate grant channel; and determining, at the mobile station, in the current transmission time interval, to maintain the transmission rate unchanged, when data was not transmitted in a previous transmission time interval and a command received via the relative grant channel indicates to increase the transmission rate; maintaining the transmission rate wherein the mobile station is not already transmitting at its maximum rate; performing HARQ process control with a transmission control section; and maintaining in a current transmission time interval assigned to a certain HARQ process, the transmission rate unchanged, when data was not transmitted in a previous transmission time interval assigned to the certain HARQ process and a command received via the relative rate grant channel indicates to increase the transmission rate.