Question: In E-UTRA and NB-IoT, what is the allowed deviation in Downlink (DL) Reference Signal (RS) / Narrowband Reference Signal (NRS) power compared to the power indicated on the Downlink Shared Channel (DL-SCH)?
Option 1: Within 0.5 dB
Option 2: Within 1.5 dB
Option 3: Within 3.5 dB
Option 4: Within 2.1 dB
Explanation: This reflects the allowed deviation to ensure consistent signal strength and quality across different carriers, directly impacting network performance and user experience, as per 3GPP standards for maintaining reliable communication in wireless networks.