Fast adaptive power control for a variable multirate communications system
AssigneeInterDigital Technology Corporation
InventorJohn W. Haim
Life of this patent
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Abstract
A system and a method of controlling transmitter power in a wireless communication system in which user data is processed as a multirate signal in which the user data signal having a first rate is converted into a transmission data signal having a faster second rate for transmission. The transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data. The transmitter power is determined as a function of the first and second rates such that a change in the data rate in the multiple channels or the rate of the transmission data signal is compensated in advance of a quality of data based adjustment associated with such data rate change.
Claims5
A base station comprising:
- a receiving circuit configured to receive a signal from a user equipment at a determined transmit power level;
- wherein the power level received is set by at least combining a first value with a second value;
- the first value being derived at least from a pathloss from the base station to the user equipment and the second value being derived at least by dividing a number of data elements for transmission by the user equipment by a number of elements provided in the transmitted signal for reception by the base station;
- and
- a transmitting circuit configured to transmit power commands to the user equipment;
- wherein the determined power level received is further derived from the received power commands at the user equipment.
Dependencies are inferred from the claim text.