Et system with adjustment for noise
AssigneeQuantance, Inc.
InventorSerge Francois Drogi
Life of this patent
Estimating the term…
Abstract
An envelope tracking transceiver dynamically adjusts envelope tracking parameters to achieve the desired tradeoff between noise performance and power efficiency. When higher levels of noise are acceptable, the envelope tracking transceiver dynamically adjusts transmitter parameters to achieve better power efficiency while sacrificing noise performance. When lower levels of noise are desired, the envelope tracking transceiver dynamically adjusts parameters to achieve better noise performance while sacrificing efficiency.
Claims20
An envelope tracking transceiver comprising:
- a power amplifier to receive an input signal and generate an amplified output signal, the power amplifier receiving a supply voltage providing power to the power amplifier;
- a lookup circuit to generate a power supply control signal based on an estimated amplitude of the input signal and a feedback signal indicating a compression level for operating the power amplifier;
- a power supply to provide the supply voltage to the power amplifier based on the power supply control signal;
- a receiver to receive a receive signal and to generate a noise margin signal representative of a noise margin of the receive signal;
- and
- a configuration circuit to generate the feedback signal based on the noise margin signal.
An envelope tracking transceiver comprising:
- a power amplifier to receive an input signal and generate an amplified output signal, the power amplifier receiving a supply voltage providing power to the power amplifier;
- a lookup circuit to generate a power supply control signal based on an estimated amplitude of the input signal;
- a power supply to provide the supply voltage to the power amplifier based on the power supply control signal;
- a receiver to receive a receive signal and to generate a noise margin signal representative of a noise margin of the receive signal;
- and
- a configuration circuit to generate one or more control signals to control parameters of at least one of the power amplifier, the lookup circuit, and the power supply based on the noise margin signal.
An envelope tracking transceiver comprising:
- a power amplifier to receive an input signal and generate an amplified output signal, the power amplifier receiving a supply voltage providing power to the power amplifier;
- a lookup circuit to generate a power supply control signal based on an estimated amplitude of the input signal and a feedback signal indicating a compression level for operating the power amplifier;
- a power supply to provide the supply voltage to the power amplifier based on the power supply control signal;
- a feedback receiver to generate a noise measure in the amplified output signal and to generate the feedback signal responsive to the noise measure.
Dependencies are inferred from the claim text.