COMBINED OPEN LOOP/CLOSED LOOP FOR CONTROLLING UPLINK POWER OF A MOBILE STATION

A method and apparatus are disclosed comprising open loop/closed loop uplink power control scheme for E-UTRA. The combined open and closed loop method for UL intra-cell PC controls the wireless transmit receive unit (WTRU) transmit power spectral density (PSD), PSDTx (e.g. power per RB). The method includes receiving signaling indicating an uplink, UL, resource assignment, a power control, PC, correction command and an assigned modulation coding set, MCS; determining a transmit power based on a combination of a power component corresponding to a bandwidth of the UL resource assignment, an open loop PC component, a closed loop PC component and a power offset, wherein the open loop PC component comprises a cell specific open loop PC nominal component and a pathloss compensation component based on a filtered pathloss estimate and a pathloss compensation factor, wherein the closed loop PC component comprises a correction factor, wherein the correction factor is based on the PC correction command, and wherein the power offset is related to the assigned MCS; and applying the transmit power.