Patent ID: 6823194
Filing Date: 2004-11-23
Classification: H04W

Abstract:
A method of controlling transmitter power in a wireless communication system in which user data is processed in a multirate signal having a rate N(t) where N(t) is a function time and in which the user data signal having rate N(t) is converted into a transmission data signal having a faster rate M(t) for transmission by a transmitter and in which the transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data comprising determining a transmitter scale factor as a function of N(t)/M(t) such that a change in the user data signal rate or the rate of the transmission data signal is compensated for in advance of a quality of data based adjustment associated with such data rate change wherein transmitter power is controlled by an open loop system where the transmitter:receives from the receiver a reference signal, reference signal power data, measured interference power data, and target signal to interference ratio (SIR) data which SIR data is based on relatively slowly collected received signal quality data, measures the reference signal to determine received reference signal power, computes a path loss based on the received reference signal power data and the determined reference signal power, and computes the scale factor based on the computed path loss, the received measured interference power data, the target SIR data and (N(t)/M(t)).