NRF54l15 best accuracy possible

Hi,

I found that the NRF 54l15 can only estimate distance based on channel sounding and RSSI. On the bluetooth website it mentioned channel sounding accuracy being around 20cm. But when I test it myself it is up to 50cm and then sometimes 1m off. Since 54l15 only has channel sounding and RSSI to get distance, is combining the two of them to achieve 2cm accuracy possible? Is there any way to make the NRF 54l15 achieve 2cm accuracy? Thank you so much in advance.

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