Patent ID: 9094919
Filing Date: 2015-07-28
Classification: H04W

Abstract:
1. A method in a radio base station of a cellular radio system, the radio base station being arranged to control the power transmitted in an uplink by a user equipment by transmitting power control commands in a downlink to the user equipment striving to keep the received uplink Signal-to-Interference Ratio, SIR, at a given SIR target, the method comprising: generating during a grant delay for the user equipment, from when a new grant for the user equipment is known until the new grant is in use by the user equipment, a corrective SIR target term based on a power level associated with the new grant, forming a corrected SIR target by combining the given SIR target with the corrective SIR target term that is based on the power level associated with the new grant, and controlling the power transmitted in the uplink by the user equipment during the grant delay, from when the new grant for the user equipment is known until the new grant is in use by the user equipment, by transmitting transmit power control commands in the downlink during the grant delay, striving to keep the received uplink SIR at the corrected SIR target.