US 12,500,807 B2 · Transceiver system and control method with improved pre-distortion effect

Abstract

A transceiver system includes a signal generator and controller circuit, a first signal converter circuit, an attenuator circuit, and a second signal converter circuit. Signal generator and controller circuit generates a transmitting baseband signal. First signal converter circuit generates a transmitting radio frequency signal according to transmitting baseband signal. Attenuator circuit generates an attenuated radio frequency signal according to transmitting radio frequency signal. Second signal converter circuit generates an attenuation range baseband reference signal according to attenuated radio frequency signal. Signal generator and controller circuit determines a first attenuation range for attenuator circuit according to attenuation range baseband reference signal when transmitting baseband signal is a dual-tone signal, and determines a second attenuation range from first attenuation range for attenuator circuit according to attenuation range baseband reference signal when transmitting baseband signal is a single-tone signal, and second attenuation range is for a pre-distortion process.

Claims20

Dependent claims

A transceiver system with improved pre-distortion effect, the transceiver system comprising:

a signal generator and controller circuit configured to generate a transmitting baseband signal;
a first signal converter circuit configured to generate a transmitting radio frequency signal according to the transmitting baseband signal;
an attenuator circuit configured to generate an attenuated radio frequency signal according to the transmitting radio frequency signal;
and
a second signal converter circuit configured to generate an attenuation range baseband reference signal according to the attenuated radio frequency signal,
wherein the signal generator and controller circuit is further configured to determine a first attenuation range for the attenuator circuit according to the attenuation range baseband reference signal when the transmitting baseband signal is a dual-tone signal, and determine a second attenuation range from the first attenuation range for the attenuator circuit according to the attenuation range baseband reference signal when the transmitting baseband signal is a single-tone signal, and wherein the second attenuation range is for a pre-distortion process.

3 more elements

A control method with improved pre-distortion effect, the control method comprising:

generating, by a signal generator and controller circuit, a first transmitting baseband signal, wherein the first transmitting baseband signal is a dual-tone signal;
generating, by a first signal converter circuit, an attenuator circuit, and a second signal converter circuit, a first attenuation range baseband reference signal according to the first transmitting baseband signal;
determining, by the signal generator and controller circuit, a first attenuation range for the attenuator circuit according to the first attenuation range baseband reference signal;
generating, by the signal generator and controller circuit, a second transmitting baseband signal, wherein the second transmitting baseband signal is a single-tone signal;
generating, by the first signal converter circuit, the attenuator circuit, and the second signal converter circuit, a second attenuation range baseband reference signal according to the second transmitting baseband signal;
and
determining, by the signal generator and controller circuit, a second attenuation range from the first attenuation range for the attenuator circuit according to the second attenuation range baseband reference signal, wherein the second attenuation range is for a pre-distortion process.

4 more elements

Dependencies are inferred from the claim text.

Transceiver system and control method with improved pre-distortion effect

Life of this patent

Transceiver system and control method with improved pre-distortion effect

Life of this patent

Abstract

Claims20