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christianrowlands / android-network-survey

Cellular Survey Android App
https://www.networksurvey.app
Apache License 2.0
151 stars 27 forks source link

RSRP Meter #16

Closed davidbtc2009 closed 1 year ago

davidbtc2009 commented 2 years ago

What is the upper and lower bounds of your RSRP meter? I know i have done data sessions at -115dbm and calling works (somewhat) all the way down at -125dbm though a text would be better at that level. Anything from -90 up to -70 ought to be considered a perfect connection.

christianrowlands commented 2 years ago

Great question, I think I need to find a way to include that information in the UI. Maybe when it is clicked.

The minimum LTE RSRP value that can represented by the meter bar is -125, and the maximum is -90. Of course, as you mention, you can have better values, than -90, but I took the same approach you did and anything better than -90 is "great".

Posting the other protocols here incase anyone else is interested:

GSM:

UMTS:

LTE:

NR:

Of course the 3GPP spec defined ranges are different, but I am not looking to represent those ranges, I am looking to represent what is "good" or "bad" to someone using a phone.

FWIW, here is the code that represents the min and max values: https://github.com/christianrowlands/android-network-survey/blob/3660fed5c18fdfe832adef0922c7a631d81d7e8d/networksurvey/src/main/java/com/craxiom/networksurvey/model/CellularProtocol.java

Also, I still plan on working on the LTE band number request you made, I just have not gotten around to it yet as I have been focusing on another project I have. I plan on giving some attention to Network survey this month.

davidbtc2009 commented 2 years ago

No problem and no wonder, i lock my phone to NR at all times and only drop it to LTE when i need to make a call. Are you planning to add the band numbers to NR as well? And the data session i did was at -115dbm on NR. The phone call i mentioned was -125 LTE.

Sent from Proton Mail mobile

-------- Original Message -------- On Oct 2, 2022, 8:51 PM, Christian Rowlands wrote:

Great question, I think I need to find a way to include that information in the UI. Maybe when it is clicked.

The minimum LTE RSRP value that can represented by the meter bar is -125, and the maximum is -90. Of course, as you mention, you can have better values, than -90, but I took the same approach you did and anything better than -90 is "great".

Posting the other protocols here incase anyone else is interested:

GSM:

  • Min: -107
  • Max: -89

UMTS:

  • Min: -107
  • Max: -77

LTE:

  • Min: -125
  • Max: -90

NR:

  • Min: -110
  • Max: -70

Of course the 3GPP spec defined ranges are different, but I am not looking to represent those ranges, I am looking to represent what is "good" or "bad" to someone using a phone.

FWIW, here is the code that represents the min and max values: https://github.com/christianrowlands/android-network-survey/blob/3660fed5c18fdfe832adef0922c7a631d81d7e8d/networksurvey/src/main/java/com/craxiom/networksurvey/model/CellularProtocol.java

Also, I still plan on working on the LTE band number request you made, I just have not gotten around to it yet as I have been focusing on another project I have. I plan on giving some attention to Network survey this month.

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christianrowlands commented 2 years ago

Yep, I plan on adding the band numbers for NR as well.

-115 for NR is getting pretty low! Crazy. I think I have seen -130 for an LTE call, but I might be mistaken on that as it was a while back.

davidbtc2009 commented 2 years ago

No way would i trust a call that weak. -120 is my cutoff where i stop attempting calls and either try ott messaging (signal, matrix, email) or sms/mms texts. Nothing bandwidth intensive or real-time. Because if the signal fluctuates much from changing position, blocking an antenna, etc its likely to fail.

Sent from Proton Mail mobile

-------- Original Message -------- On Oct 2, 2022, 9:16 PM, Christian Rowlands wrote:

Yep, I plan on adding the band numbers for NR as well.

-115 for NR is getting pretty low! Crazy. I think I have seen -130 for an LTE call, but I might be mistaken on that as it was a while back.

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: @.***>