Outer loop/weighted open loop power control in a time division duplex communication system

摘要

The present invention provides a spread spectrum time division duplex user equipment (52), the user equipment (52) using frames with time slots for communication, the user equipment (52) receiving power commands and receiving a first communication having a transmission power level in a first time slot, the user equipment (52) measuring a power level of the first communication as received and determining a pathloss estimate based on in part the measured received first communication level and the first communication transmission power level, the system characterized by the user equipment (52) comprising means (108) for setting a transmission power level for a second communication in a second time slot from the user equipment (52) based on in part the pathloss estimate weighted by a quality factor adjusted by the power commands, wherein the quality factor decreases as a number of time slots between the first and second time slots increases.