I’m doing a survey of the existing cellular antenna towers in my city. Using a 2G chip (SIM800L) and with an AT command (AT + CENG) I get a list of the closest towers.
Analyzing the data of a single cellular company I see the following:
-I read the LAC, BSIC and the CELLID, among other data.
-The LAC is unique in the whole area. So it’s not a problem
-I need to identify a tower with a unique code, so I assume that the BSIC should be a unique number for each tower. And that there could be several CELLID in each tower.
-I see in the obtained data that there are CELLID’s that are repeated in different BSIC.
I do not understand the relationship between BSCI and CELLID.
Any help with this?