US 2025/0105850 A1 · WIRELESS COMMUNICATION DEVICE AND METHOD FOR CONTROLLING ACTIVATION OF RF TRANSMISSION SIGNAL GENERATION CIRCUIT

Abstract

A wireless communication device and method for controlling activation of a radio frequency (RF) transmission signal generation circuit are disclosed. The wireless communication device includes a communication processor and a transceiver controlled by the communication processor to perform wireless communication, wherein the transceiver includes a phase locked loop (PLL) configured to generate a first oscillator signal based on a clock frequency signal, an RF transmission signal generation circuit configured to generate an RF transmission signal based on the first oscillator signal received from the PLL circuit and a baseband transmission signal received from the communication processor, and a first decision circuit configured to receive a first phase comparison signal indicating whether a phase of the first oscillator signal is locked from a first phase comparator in the PLL circuit and control activation of at least one component included in the RF transmission signal generation circuit based on the first phase comparison signal.

Claims20

Dependent claims

A wireless communication device, comprising:

a communication processor;
and
a transceiver configured to be controlled by the communication processor to perform wireless communication,
wherein the transceiver comprises:
a phase locked loop (PLL) circuit configured to generate a first oscillator signal based on a clock frequency signal;
a radio frequency (RF) transmission signal generation circuit configured to generate an RF transmission signal based on the first oscillator signal received from the PLL circuit and a baseband transmission signal received from the communication processor;
and
a first decision circuit configured to receive, from a first phase comparator comprised in the PLL circuit, a first phase comparison signal indicating whether a phase of the first oscillator signal is locked, and control activation of at least one component comprised in the RF transmission signal generation circuit based on the first phase comparison signal.

5 more elements

A method of controlling activation of a radio frequency (RF) transmission signal generation circuit comprised in a transceiver of a wireless communication device configured to perform wireless communication, the method comprising:

comparing, by a first phase comparator in a phase locked loop (PLL) circuit of the transceiver, a phase of a clock frequency signal and a phase of a first oscillator signal that is an output signal of the PLL circuit, and generating a first phase comparison signal indicating whether the phase of the first oscillator signal is locked;
transferring, by the first phase comparator, the first phase comparison signal to a first decision circuit of the transceiver;
controlling, by the first decision circuit, activation of at least one component comprised in the RF transmission signal generation circuit based on whether the phase of the first oscillator signal indicated in the first phase comparison signal is locked;
in response to the at least one component being activated, generating, by the RF transmission signal generation circuit, an RF transmission signal from the first oscillator signal and a baseband transmission signal generated by a communication processor of the wireless communication device;
and
outputting, by the RF transmission signal generation circuit, the generated RF transmission signal.

3 more elements

Dependencies are inferred from the claim text.

Wireless communication device and method for controlling activation of rf transmission signal generation circuit

Life of this patent

Wireless communication device and method for controlling activation of rf transmission signal generation circuit

Life of this patent

Abstract

Claims20