Hi Liwen.
In your comment, you mentioned that aSignalExtension should be added to aSIFSTime and that the sum should become the new aSIFSTime.
The signal extension effect does not affect SIFS. The channel becomes empty for an additional aSignalExtension time on the receiving AMP non-AP STA if the aSignalExtension parameter is added to TXTIME. This effect is not observed on the transmitting AMP non-AP STA, the transmitting AMP AP STA, the transmitting AMP STA, or the receiving third-party STAs.
IMHO, the aSignalExtension parameter should not be added to TXTIME, as it is not the case in the WUR.
Best Regards,
Solomon Trainin
+972547885738
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