Patent ID: 7853283
Filing Date: 2010-12-14
Classification: H04L,H04W

Abstract:
1. A transmission power control method which controls a transmission power of an uplink user data channel for transmitting uplink user data from a mobile station to a radio base station, comprising: transmitting, from the mobile station to the radio base station, a transmission data block which includes control information periodically, even when the uplink user data to be transmitted has not existed in a transmission buffer of the mobile station; notifying, at the radio base station, the number of retransmissions of the transmission data block to a radio network controller; determining, at the radio network controller, a target SIR of a dedicated physical control channel in the radio base station based on the notified number of retransmissions, and notifying the determined target SIR to the radio base station; controlling, at the radio base station, a transmission power of the dedicated physical control channel in the mobile station based on the notified target SIR; and determining, at the radio network controller, a transmission wave amplitude ratio between the uplink user data channel and the dedicated physical control channel based on the notified number of retransmissions, and notifying the determined transmission wave amplitude ratio to the mobile station.