Signal configuration based transmitter adjustment in wireless communication devices
AssigneeMotorola Mobility LLC
InventorsArmin Klomsdorf, Robert Love, Ernest Schirmann, Dale Schwent
Life of this patent
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Abstract
A method in a wireless communication transmitter including a baseband processor (310) that dynamically configures the transmitter for a particular signal configuration, and a headroom controller (350) for adjusting transmitter headroom based on the particular signal configuration. In one embodiment, the PA headroom is controlled based on a power metric, for example, a 3rd order polynomial or peak to average ratio (PAR) metric, that is a function of the signal configuration. In another embodiment the PA headroom is adjusted using information in a look up table.
Claims30
A method in a wireless communication transmitter, the method comprising:
- configuring the wireless communication transmitter for a particular signal configuration;
- adjusting transmitter headroom based on the particular signal configuration,
- the headroom is a measure of power margin available for producing a particular RMS output power for a particular signal configuration.
A method in a wireless communication transmitter, the method comprising:
- determining transmitter headroom information using a power metric dependent on a particular signal configuration;
- configuring the wireless communication transmitter for the particular signal configuration after determining the transmitter headroom information;
- adjusting transmitter headroom for the particular signal configuration based on the transmitter headroom information determined using the power metric.
A method in a wireless communication transmitter, the method comprising:
- determining transmitter headroom based on a particular signal configuration using a look up table;
- configuring the wireless communication transmitter for the particular signal configuration after determining the transmitter headroom;
- adjusting transmitter headroom for the particular signal configuration based on the transmitter headroom determined using the look up table.
A method in a wireless communication transmitter, the method comprising:
- determining a power metric based on a particular signal configuration of the transmitter;
- adjusting transmitter output power based on the power metric.
A method in a wireless communication transmitter, the method comprising:
- configuring the wireless communication transmitter for a particular signal configuration;
- adjusting transmitter output power based on the particular signal configuration using a look up table.
Dependencies are inferred from the claim text.