US 2026/0100505 A1 · WIRELESS COMMUNICATION DEVICE AND METHOD FOR COMPENSATING NONLINEAR DISTORTION OF WIRELESS COMMUNICATION DEVICE

Abstract

A wireless communication device and a method for compensating nonlinear distortion of a wireless communication device are provided. The wireless communication device includes a transmitting (TX) baseband circuit, an amplitude modulation (AM) circuit, a phase modulation (PM) circuit, a power amplifier (PA), a calculation circuit and a compensation circuit. The TX baseband circuit outputs a TX signal to make the AM circuit and the PM circuit generate an AM signal and a PM signal, respectively. The PA takes the AM signal as a supply voltage and generates an output signal according to the PM signal. The calculation circuit estimates a delay skew between the AM signal and the PM signal according to a detection result of the output signal to generate an estimation result, and the compensation circuit compensates the AM signal or the PM signal according to the estimation result, in order to reduce the delay skew.

Claims14

Dependent claims

A wireless communication device, comprising:

a transmitting (TX) baseband circuit, configured to output a TX signal;
an amplitude modulation (AM) circuit, configured to generate an AM output signal according to an AM TX signal of the TX signal;
a phase modulation (PM) circuit, configured to generate a PM output signal according to a PM TX signal of the TX signal;
a power amplifier (PA), coupled to the AM circuit and the PM circuit, the PA configured to take the AM output signal as a supply voltage and generate an output signal according to the PM output signal;
a delay calculation circuit, configured to estimate a delay skew between the AM output signal and the PM output signal according to a detection result of the output signal to generate an estimation result;
and
a delay compensation circuit, coupled to the TX baseband circuit and the delay calculation circuit, the delay compensation circuit configured to compensate the AM output signal or the PM output signal according to the estimation result, in order to reduce the delay skew.

4 more elements

A method for compensating nonlinear distortion of a wireless communication device, comprising:

utilizing a transmitting (TX) baseband circuit of the wireless communication device to output a TX signal;
utilizing an amplitude modulation (AM) circuit of the wireless communication device to generate an AM output signal according to an AM TX signal of the TX signal;
utilizing a phase modulation (PM) circuit of the wireless communication device to generate a PM output signal according to a PM TX signal of the TX signal;
utilizing a power amplifier (PA) of the wireless communication device to take the AM output signal as a supply voltage and generate an output signal according to the PM output signal;
utilizing a delay calculation circuit of the wireless communication device to estimate a delay skew between the AM output signal and the PM output signal according to a detection result of the output signal to generate an estimation result;
and
utilizing a delay compensation circuit of the wireless communication device to compensate the AM output signal or the PM output signal according to the estimation result, in order to reduce the delay skew.

4 more elements

Dependencies are inferred from the claim text.

Wireless communication device and method for compensating nonlinear distortion of wireless communication device

Life of this patent

Wireless communication device and method for compensating nonlinear distortion of wireless communication device

Life of this patent

Abstract

Claims14