# Tracking location with GSM tower triangulation

I want to track location with GSM tower triangulation.

I searched and I found this API for GSM positioning.

{
"gsm": [{
"mcc": 262,
"mnc": 1,
"lac": 5126,
"cid": 16504,
"nmr": [
{ "bsic": "6", "bcch": "82" },
{ "bsic": "7", "bcch": "85" },
{ "bsic": "12", "bcch": "93" },
{ "bsic": "13", "bcch": "88" },
{ "bsic": "19", "bcch": "88" }
]
}]
}


It requires the shown GSM information.

I don't understand what "nmr" is.

How can I find "nmr" information of GSM?

• why can you not search the web? the answers are all there – Tony Stewart EE75 Dec 28 '20 at 1:39
• I searched but I don't understand exactly what is nmr. – Sun Dec 28 '20 at 10:41
• @Sun: In the context of GSM, "NMR" stands for "Network Measurement Report." Despite having written (professionally) several programs that use GSM modems, I do not recall having seen the AT commands needed to get the NMR values. I'm also not having any success looking them up. – JRE Dec 28 '20 at 11:54
• Thank yoyu @JRE – Sun Dec 28 '20 at 12:47
• As far as I can tell, the NMR is in the "Cell Broadcast Messages" that you can request using the "AT+CSCB" command. – JRE Dec 28 '20 at 13:38