Radio frequency signal transceiving and processing method, device, and base station system

摘要

A radio frequency signal transceiver includes: a transmission circuit configured to perform power amplification on an input first analog signal, wirelessly transmit the first analog signal after power amplification, and output the first analog signal after power amplification to a pre-distortion circuit; the pre-distortion circuit configured to convert the first analog signal after power amplification into a second analog signal and output the second analog signal, where the second analog signal is used to feedback distortion of the first analog signal to compensate the first analog signal in advance according to the distortion; and a receiving circuit configured to wirelessly receive a third analog signal, and process and output the third analog signal. The radio frequency signal transceiver can improve efficiency in receiving and transmitting a radio frequency signal, reduce a cost of a base station system, and reduce a difficulty in implementing the base station system.

主权项

1. A radio remote unit (RRU), comprising:
a digital circuit; a backplane; and at least one radio frequency signal transceiver configured to transmit an analog signal to the digital circuit via the backplane, wherein the radio frequency signal transceiver comprises;
a pre-distortion circuit; anda transmission circuit coupled to the pre-distortion circuit and configured to:
perform power amplification on an input first analog signal;wirelessly transmit the first analog signal after power amplification; andoutput the first analog signal after power amplification to the pre distortion circuit, wherein the pre-distortion circuit is configured to:
convert the first analog signal after power amplification output by the transmission circuit into a second analog signal; andoutput the second analog signal, wherein the second analog signal is used to feedback distortion of the first analog signal to compensate the first analog signal in advance according to the distortion; anda receiving circuit configured to:
wirelessly receive a third analog signal;process the third analog signal; andoutput the processed third analog signal, wherein the digital circuit is coupled to the at least one radio frequency signal transceiver and is configured to;
convert at least one input first digital signal into a corresponding number of fourth analog signals; andoutput the corresponding number of fourth analog signals to a corresponding number of radio frequency signal transceivers;convert a fifth analog signal output by at least one radio frequency signal transceiver into a corresponding number of second digital signals;output the corresponding number of second digital signals, wherein the fifth analog signal is used to feedback distortion of one of the fourth analog signals to compensate the one fourth analog signal in advance according to the distortion;convert a processed sixth analog signal output by at least one radio frequency signal transceiver into a corresponding number of third digital signals; andoutput the corresponding number of third digital signals, wherein the one fourth analog signal is the same as the first analog signal, wherein the second analog signal is the same as the fifth analog signal, and wherein the third analog signal is the same as the sixth analog signal.