Radio frequency receiving link and radio frequency transceiving device

A radio frequency transceiving device, comprising:

• a radio frequency receiving link and a radio frequency transmitting link, wherein the radio frequency receiving link comprises:
• an input unit, configured to input a first input signal;
• a clock unit, configured to generate a local oscillator signal;
• a receiving link frequency-mixing unit, configured to obtain the first input signal and the local oscillator signal, and generate a first frequency-mixing signal according to the first input signal and the local oscillator signal;
• and a calibration unit, configured to obtain first direct current offset information of the radio frequency receiving link, wherein the first direct current offset information is direct current offset information in the radio frequency receiving link when the receiving link frequency-mixing unit generates the first frequency-mixing signal;
• the radio frequency transmitting link comprises:
• a transmitting link frequency-mixing unit, configured to obtain a preset analog signal, the local oscillator signal and preset fourth direct current offset information, and generate a third frequency-mixing signal according to the analog signal, the local oscillator signal and the fourth direct current offset information;
• and
• an output unit, configured to obtain an output signal according to the third frequency-mixing signal, and send the output signal to the input unit in the radio frequency receiving link;
• wherein the receiving link frequency-mixing unit is further configured to obtain a third input signal and generate a fourth frequency-mixing signal according to the third input signal and the local oscillator signal, wherein the third input signal is input by the input unit according to the first input signal and the output signal;
• the calibration unit is further configured to obtain fifth direct current offset information of the radio frequency receiving link, and perform frequency calibration for the radio frequency transmitting link according to the first direct current offset information and the fifth direct current offset information, wherein the fifth direct current offset information is direct current offset information in the radio frequency receiving link when the receiving link frequency-mixing unit generates the fourth frequency-mixing signal.