Patent ID: 11955996
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus, comprising:
a receiver configured to receive a wireless local area network (WLAN) analog baseband signal from a baseband chip;
an analog-to-digital converter (ADC) coupled to the receiver and configured to convert the WLAN analog baseband signal into a WLAN digital baseband signal;
one or more processors coupled to the ADC and configured to:
select, based on control information, a pre-equalization filter, wherein the pre-equalization filter is configured to compensate for wired transmission attenuation in a frequency domain; and
process the WLAN digital baseband signal to obtain a WLAN analog intermediate frequency signal by performing, using the pre-equalization filter and based on cable length estimation information of a cable, pre-equalization on the WLAN digital baseband signal to compensate for the wired transmission attenuation by ensuring that a signal-to-noise ratio (SNR) of each signal in a frequency band meets a requirement; and

a transmitter coupled to the one or more processors and configured to:
communicatively couple to a radio frequency processing apparatus disposed remotely from the apparatus through a wired connection between the apparatus and the radio frequency processing apparatus; and
send the WLAN analog intermediate frequency signal to the radio frequency processing apparatus through the wired connection between the apparatus and the radio frequency processing apparatus.