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

Claim 8:
9. An apparatus, comprising:
a receiver configured to receive a wireless local area network (WLAN) analog intermediate frequency signal from a baseband processing apparatus;
one or more processors coupled to the receiver and configured to process the WLAN analog intermediate frequency signal to obtain a WLAN digital baseband signal;
a digital-to-analog converter (DAC) coupled to the one or more processors 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
convert the WLAN digital baseband signal into a WLAN analog baseband 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 DAC and configured to:
communicatively couple to a radio frequency chip disposed remotely from the apparatus through a wired connection between the apparatus and the radio frequency chip; and
send the WLAN analog baseband signal to the radio frequency chip through the wired connection between the apparatus and the radio frequency chip.