Hey, Unfortunately there are many things called "cell id". For our own purposes we use a specific combination of radio type and four more identifiers which depend on the radio type to uniquely identify a logical cell network. These identifiers aren't about a specific cell site or cell tower but only about a logical network. Data I've seen from other sources often have identifiers for a specific cell tower installation instead, but you cannot get those from the mobile operating systems.
A more detailed explanation of our unique cell identifiers is at http://mozilla-ichnaea.readthedocs.org/en/latest/cell.html. In the public API we call the five fields radio, mcc, mnc, lac and cid - though they actually refer to different technical values depending on the radio type. On newer versions of Android you get access to these identifiers via the http://developer.android.com/reference/android/telephony/TelephonyManager.html#getAllCellInfo%28%29 API. The TelephonyManager has a couple more methods for accessing these in older Android versions. Hanno > On 02.04.2015, at 21:32 , [email protected] wrote: > > Hello, > > Is there a way to estimate the location of a Cell ID (CID) in the raw data > download? The exported data seems sorted by the 'Updated' field. There is no > direct connection between the local tower/ antenna data available from the > FCC and public websites, and the Cell ID associated with a tower, that I can > determine. > I'm using an Apple iPhone with iOS and am trying to locate the source of > mappings of tower records, Tower ID, to Cell IDs for use with the phone's > Field Test mode data. > What it boils down to is I'm examining the use of raw data to do manual > estimations of locations using triangulation. I have tower and antenna data > including geographic coordinates but can't associate that data with the CELL > ID drom the phone's Field Test mode. > I've downloaded, uncompressed, and split the exported data file into > smaller chunks but seven megabytes per file is still too much, for the apps I > have, to search in a timely way (read : sometime today). > > Thank you, > Jim Julian _______________________________________________ dev-geolocation mailing list [email protected] https://lists.mozilla.org/listinfo/dev-geolocation
