Patent ID: 11967996
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. An equalizer, configured to:
receive at least two channels of digital electrical signals; and
randomly select two channels of mutually independent digital electrical signals from the at least two channels of the digital electrical signals, wherein the equalizer comprises:
a time-to-frequency convertor, configured to:
obtain a first complex signal; and
convert the first complex signal to a frequency domain signal, wherein the first complex signal is a first time domain signal, and the first complex signal is obtained based on the two channels of mutually independent digital electrical signals;

a multiplier, configured to multiply the first complex signal in frequency domain by a tap coefficient to obtain a second complex signal, wherein the tap coefficient is used to implement signal compensation for the first complex signal in frequency domain; and
a frequency-to-time convertor, configured to:
convert the second complex signal into a second time domain signal;
divide the second time domain signal into two channels of real signals; and
output the two channels of the real signals.