Method for adjusting transmitter output power
AssigneeInfineon Technologies AG
InventorsTobias Scholand, Michael Speth
Life of this patent
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Abstract
A description is given for a method for operating a wireless multichannel CDMA transmitter, wherein a power metric based on a particular signal configuration is determined, the power metric being determined as a function of power weighting factors used in the channels of the particular signal configuration, and wherein the transmitter output power is adjusted based on the power metric.
Claims22
A method of operating a wireless multichannel CDMA transmitter, the method comprising:
- generating a plurality of modulated data streams;
- spreading each one of the data streams with one of a plurality of spreading factors;
- multiplying each one of the spread data streams with a respective one of a plurality of power weighting factors;
- and
- calculating a maximum power reduction for a power amplifier of the CDMA transmitter as a function of the used power weighting factors.
A method in a wireless multichannel CDMA transmitter, the method comprising:
- configuring the wireless multichannel CDMA transmitter for a particular signal configuration;
- adjusting transmitter headroom based on the particular configuration, wherein the headroom is adjusted as a function of power weighting factors used in the channels of the particular signal configuration.
A method in a wireless multichannel CDMA transmitter, the method comprising:
- determining a power metric based on a particular signal configuration of the transmitter, wherein the power metric is determined as a function of power weighting factors used in the channels of the particular signal configuration;
- and
- adjusting transmitter output power based on the power metric.
A method of operating a power amplifier in a wireless multichannel CDMA transmitter, the method comprising:
- determining a particular signal configuration of the transmitter;
- and
- adjusting power amplifier headroom based on the particular signal configuration, wherein the headroom is calculated as a function of power weighting factors used in the channels of the particular signal configuration.
A method in a wireless multichannel CDMA transmitter, the method comprising:
- determining a metric based on a particular signal configuration of the transmitter, wherein the metric is determined as a function of the particular signal configuration;
- and
- adjusting transmitter output power based on the metric.
Dependencies are inferred from the claim text.