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US 6,212,399 B1Granted
Method and apparatus for controlling the power radiated by a wireless terminal in a telecommunications system based on a variable step size
AssigneeLucent Technologies Inc.
InventorsSarath Kumar, Sanjiv Nanda, Lei Song
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Abstract
A technique for controlling the power with which a wireless terminal transmits is disclosed. One embodiment of the present invention comprises: transmitting a first signal at a first power level; receiving a series of n power control signals, bi−n+1 through bi; setting a step size based on a measure of dispersion of the n power control signals; and transmitting a second signal at a second power level that is based on the first power level and the step size.
Claims28
A method comprising:
- transmitting a first signal at a first power level;
- receiving a series of n power control signals, bi−n+1 through bi, wherein n>1;
- setting a step size to a first value when an absolute value of the sum of the magnitude of said n power control signals is less than a first threshold;
- setting said step size to a second value when said absolute value of the sum of the magnitude of said n power control signals is greater than said first threshold and less than a second threshold;
- setting said step size to a third value when said absolute value of the sum of the magnitude of said n power control signals is greater than said second threshold;
- and
- transmitting a second signal at a second power level that is based on said first power level and said step size.
4 more elements
A wireless terminal comprising:
- a receiver for receiving a series of n power control signals, bi−n+1 through bi, wherein n>1;
- a transmitter for transmitting a first signal at a first power level and a second signal at a second power level that is based on said first power level and a step size;
- a processor for receiving said n power control signals from said receiver, for setting said step size to a first value when an absolute value of the sum of the magnitude of said n power control signals is less than a first threshold;
- setting said step size to said second value when said absolute value of the sum of the magnitude of said n power control signals is greater than said first threshold and less than a second threshold, and setting said step size to a third value when said absolute value of the sum of the magnitude of said n power control signals is greater than said second threshold.
1 more element
A method comprising:
- transmitting a first signal at a first power level;
- receiving a series of n power control signals, bi−n+1 through bi, wherein n>1;
- setting a step size to a first value when an absolute value of the sum of the magnitude of said n power control signals is less than a first threshold;
- setting said step size to a second value when said absolute value of the sum of the magnitude of said n power control signals is greater than said first threshold;
- and
- transmitting a second signal at a second power level that is based on said first power level and said step size.
3 more elements
A wireless terminal comprising:
- a receiver for receiving a series of n power control signals, bi−n+1 through bi, wherein n>1;
- a transmitter for transmitting a first signal at a first power level and a second signal at a second power level that is based on said first power level and a step size;
- a processor for receiving said n power control signals from said receiver, for setting said step size to a first value when an absolute value of the sum of the magnitude of said n power control signals is less than a first threshold, and for setting said step size to a second value when said absolute value of the sum of the magnitude of said n power control signals is greater than said first threshold.
A method comprising:
- transmitting a first signal at a first power level;
- receiving a series of n power control signals, bi−n+1 through bi, wherein n>1;
- setting a step size based on an absolute value of the sum of the magnitude of said n power control signals, bi−n+1 through bi;
- and
- transmitting a second signal at a second power level that is based on said first power level and said step size.
2 more elements
A wireless terminal comprising:
- a receiver for receiving a series of n power control signals, bi−n+1 through bi, wherein n>1;
- a transmitter for transmitting a first signal at a first power level and a second signal at a second power level that is based on said first power level and a step size;
- a processor for receiving said n power control signals from said receiver, and for setting said step size based on an absolute value of the sum of the magnitude of said n power control signals, bi−n+1 through bi.
Dependencies are inferred from the claim text.