Public Talk:Future OpenCellID database content
* Add the value cellid in long/short-format in measurements_.csv/cell_towers.csv
* Add the value RNC (Radio Network Controller) in measurements_.csv/cell_towers.csv (UMTS)
* Add latitude and longitude from the calculated real position in the cell_towers.csv (Real place from the base station)
The actual position from the most cells is the middle from all measurements.
With the value signal maybe it is possible to calculate with the best signals (ASU = 31 or -51 dBm) the best calculated real place from the base station.
The value for the real latitude/longitude can used in example from a clf-import.
At the moment it is a mix with the middle and clf-import with the real position.
The real postion is useful for the apps G-Mon, G-NetTrack or RF Signal Tracker to create a cellfile or show alayer with the base stations.
Calculated middle from the cell:
changeable=1: the GPS position of the cell tower has been calculated from all available measurements
Real position from the cell:
changeable=0: the GPS position of the cell tower is precise; no measurements have been used to calculate it.
Example:
latitude_middle, longitude_middle, latitude_real, longitude_real
* Add the value cellrange.
With the value cellrange you can add the simple way for triangulation (see example google).
For this you use the calculated middle.
Lat=45.641502
Lon=8.812474
Range=1177 m
Example with the calculated middle and cellrange:
* Add value description for details from the cell
Example:
- street
- address
- bcch
- town
Links:
- Add value radio with describes the used technology like gsm, umts or lte
So you can see which technology is at the place.
Example Mozilla Location service:
https://mozilla-ichnaea.readthedocs.org/en/latest/cell.html
- Add value altitude
Useful for 3D heatmap
Example Mozilla Location service:
https://mozilla-ichnaea.readthedocs.org/en/latest/api/submit.html
CLF version 3.0 supports the following data. Should it be supported by OCID as well?
This format uses more information about cells. It has the following format:
MCC+MNC;CellId;LAC;RNC;Latitude;Longitude;Ratio;Data;RFU
CellId and LAC can be decimal or hexadecimal.
--Msemm (talk) 12:24, 26 January 2014 (CET)
CDMA support: is there anything special required?
- For CDMA, cell towers are identified via Network ID, Base sub-station ID and system ID (NID, BSSID and SID). CDMA phones include the Droid (II, X, HD, etc.), EVO 4G - all phones on Verizon and Sprint.
--Msemm (talk) 12:25, 26 January 2014 (CET)
Some more data to be stored? a com peting app displays advanced CellID info (LTE: RSRP, RSRQ, SNR, CQI, Timing Advance for LTE-TDD. CDMA: ECIO, EVDO ECIO, SNR) --Msemm (talk) 12:30, 26 January 2014 (CET)
openBmap file format: http://sourceforge.net/apps/mediawiki/myposition/index.php?title=Log_format --Msemm (talk) 20:09, 28 January 2014 (CET)
