Signal predistortion circuit configuration

A signal predistortion circuit configuration, comprising:

• a digital predistortion circuit configured to output a first digital transmission signal according to at least one first parameter and output a second digital transmission signal according to at least one second parameter, the digital predistortion circuit further configured to determine whether to adjust the at least one first parameter according to a first digital reception signal and determine whether to adjust the at least one second parameter according to a second digital reception signal;
• a first transmitting circuit configured to generate a first analog transmission signal according to the first digital transmission signal;
• a first receiving circuit configured to generate the second digital reception signal according to a second analog reception signal and transmit the second digital reception signal to the digital predistortion circuit;
• a second transmitting circuit configured to generate a second analog transmission signal according to the second digital transmission signal;
• a second receiving circuit configured to generate the first digital reception according to a first analog reception signal and transmit the first digital reception signal to the digital predistortion circuit, wherein a minimum distance between the first transmitting circuit and the first receiving circuit is shorter than a minimum distance between the first transmitting circuit and the second receiving circuit, and a minimum distance between the second transmitting circuit and the second receiving circuit is shorter than a minimum distance between the second transmitting circuit and the first receiving circuit;
• a first analog-front-end (AFE) circuit coupled between the first transmitting circuit and the second receiving circuit, the first AFE circuit configured to generate the first analog reception signal according to the first analog transmission signal;
• and
• a second AFE circuit coupled between the second transmitting circuit and the first receiving circuit, the second AFE circuit configured to generate the second analog reception signal according to the second analog transmission signal.