Measuring cell signal strength (rsrp) for booster placement -- can't find rsrp.

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Level 1

9 points

Measuring cell signal strength (rsrp) for booster placement -- can't find rsrp.

LTE service cell measurement doesn't show rsrp on iPhone Xr -- can it be found anywhere? I'm trying to locate the best placement for a SureCall Fusion-4Home cell signal booster, per the instructions, need to find the rsrp parameter under the LTE Serving Cell Measurement info, which has rscp and rssi but not rsrp. The rsrp is a measure of the strength of the cell signal. One enters the number @3001#12345#* to access a page of related info, that is, for instance, to get to the LTE Serving Cell Measurement info.

iPhone XR, iOS 16

Posted on Dec 22, 2025 7:00 PM

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Answer 1

Dec 23, 2025 12:00 AM in response to dhcox57

The dialing code is dialing *3001#12345#* and not @3001#12345#

Understand RAT concerning Cellular Networks.

Cellular networks use different Radio Access Technologies (RATs) for communication. Common RATs include GSM (Global System for Mobile Communications), CDMA (Code Division Multiple Access), LTE (Long-Term Evolution), and 5G NR (New Radio).
Each RAT represents a different generation or technology level in mobile communication.
Network retention usually refers to a device's ability to maintain a connection to a specific network (e.g., GSM, CDMA, LTE) while moving between different areas or cells.

You may have checked the current LTE band/5G/4G/3G by dialing *3001#12345#* and pressing the call button and then selecting the Serving cell info option and then looked at MISC

See the pic below which is self-explanatory

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Answer 2

dhcox57 Author

Level 1

9 points

Dec 23, 2025 11:44 AM in response to SravanKrA

Thanks for the reply. The initial "@" was a typo in my post, I had typed in the correct sequence on the phone.

Lots of interesting info in your reply and the "self-explanatory" pic. I still don't see a way to measure the strength of whatever cell signal my phone is using, which according to the documentation with the booster should be a parameter called "rsrp" and be in a negative DB amount. And which is apparently easy to see on a newer iPhone. Is there a way to access this rsrp value on this old iPhone Xr?

Thanks again.

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