Radio telecommunications network

摘要

This invention deals with the problem of assigning the power offset between DPCCH and DPDCH. The problem arises from the usage of power control on the DPCCH whereas the quality that is under control (e.g. BER) is given on the DCH/ DPDCH. The power offset must be adjusted in such a way that the transmission power requirements of the DPCCH and the DPDCH are met without wasting to much of the power. An algorithm for assigning the power offsets is disclosed that consists of two main parts: Allocation of the specific G-values to every TFC by RRC in the RNC and signalling them to transmitting and receiving side (UE/ NodeB) via higher layer signalling. Autonomously adjusting of G in PHY regarding the current used TFC in the transmitter. The receiver determines the G-value from the TFC via TFCI signalling. This algorithm allows efficient setting of dynamically variable offset values without too much signalling overhead. It is compliant to the currently UMTS standard. <IMAGE>