Method and apparatus for supervising transmit power in a high data rate system
AssigneeQUALCOMM Incorporated
InventorPaul E. Bender
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Abstract
A method of supervising on the forward link in a high data rate system is disclosed, wherein a base station transmits to an access terminal on a forward traffic channel only when the base station has data to send to the access terminal. Each access terminal generates periodic data rate measurements based on the received forward link signal. Each access terminal then minimizes the period in which it transmits on the reverse link without being power-controlled by turning off its transmitter based on the data rate measurements.
Claims27
In a wireless communication system, a method for controlling transmission power comprising:
- measuring at least one first carrier-to-interference ratio of a received signal;
- generating a first measurement value for each of said at least one first carrier-to-interference ratio to form at least one first measurement value;
- transmitting the at least one first measurement value;
- measuring a second carrier-to-interference ratio of the received signal;
- generating a second measurement value for the second carrier-to-interference ratio;
- and
- turning off a transmitter based on the at least one first measurement value and the second measurement value.
A wireless access terminal apparatus comprising:
- a transmitter for amplifying and transmitting a control signal at a transmit power level;
- a demodulator for demodulating a downconverted signal and measuring signal characteristics of the downconverted signal;
- and
- a control processor for generating measurement values based on the signal characteristics, and for setting the transmit power level to approximately zero based on the measurement values, wherein the transmitted control signal includes the measurement values.
A wireless access terminal apparatus comprising:
- means for measuring at least one first carrier-to-interference ratio of a received signal;
- means for generating a first measurement value for each of said at least one first carrier-to-interference ratio to form at least one first measurement value;
- means for transmitting the at least one first measurement value;
- means for measuring a second carrier-to-interference ratio of the received signal;
- means for generating a second measurement value for the second carrier-to-interference ratio;
- and
- means for turning off a transmitter based on the at least one first measurement value and the second measurement value.
Dependencies are inferred from the claim text.