【資料名稱】：G-NetTrack - Android OS UMTS/GSM/LTE/CDMA/EVDO Network Monit

【資料作者】：G-NetTrack

【資料日期】：2013.03.13

【資料語言】：英文

【資料格式】：其它

【資料目錄和簡介】：

This is a fieldtest/netmonitor application for UMTS/GSM/LTE/CDMA/EVDO network.

The application monitors the serving CELLID, LEVEL, QUAL, MCC, MNC, LAC, technology, cell serving time and neighbor cells CELLID/PSC and LEVEL.

LEVEL and QUAL depend on technology:
- 2G - RXLEVEL and RXQUAL
- 3G - RSCP and ECNO
- 4G - RSRP and RSRQ

For 4G also SNR and CQI are monitored.

The phone measurement capabilities vary with the phone brand and type.

There are two modes in which app could be used - instant and log modes.

1. Instant mode - this is a quick mode for fast measurements
- start the app
- enable the mapview (Control tab)
- select measurement (LEVEL, QUAL, CELLID, DL-bitrate, UL-bitrate, Speed)
- when you finish with measurements you can export the observed measurement to kml or take a screenshot.

2. Log mode - this is more sophisticated mode. You can also start voice and data sequences (that's why you see in the app permissions "Services that cost you money - Directly call phone numbers") in order to monitor the network for blocked and dropped calls and to measure upload and download bitrate. Don't lock the phone while the log is running.
- start the app
- select what measurements you want to log (Menu-Settings)
- start log (Control tab)
- the app starts to create kml and text tab export for the selected measurements
- it also creates event kml and text file - for cell reselections, handovers, Call Start, Call End, Call Drop, Call Block
- when you are finished with measurements press End Log button
- you can find kml exports and tab exports in folder G-NetTrack_Logs on sdcard

Download sample kml and text logfiles

Using application you can easily pinpoint network problems like:
- blocked calls
- dropped calls
- bad coverage - low RXLEVEL
- low uplink and downlink data throughput
- lack of dominant server causing lot of cell reselections and frequent service interruptions - when the serving cell time is small
- weak 3G coverage - when you have a lot of reselections between cells on 3G and 2G

If you have cell information you can view the sites on the map. In order to do this create cellfile and put it into folder G_NetTrack_Logs/cellfile. The cellfile format is tab delimited text file with following columns:

CELLNAME - name of the cell - you can put anything here
LAT - latitude in decimal format
LONG - longitude in decimal format
LAC - LAC of the cell - number
CELLID - CELLID of the cell - number
AZIMUTH - azimuth of the antenna - number
TECH - technology - 2G, 3G or 4G
NODE - for GSM is empty, for 3G is RNC and for 4G is eNodeB ID - this column is mandatory only for 4G. For 3G you can skip it if "LAC-CELLID" is unique



CELLNAME LAT LONG LAC CELLID AZIMUTH TECH NODE
BG10021 42.69838 23.32268 1400 10021 0 2G
BG10022 42.69838 23.32268 1400 10022 120 2G
BG10023 42.69838 23.32268 1400 10023 240 2G
BG10027 42.69838 23.32268 1010 10027 0 3G 621
BG10028 42.69838 23.32268 1010 10028 120 3G 621
BG10029 42.69838 23.32268 1010 10029 240 3G 621
BG10024 42.69838 23.32268 1050 10024 0 4G 1001
BG10025 42.69838 23.32268 1050 10025 120 4G 1001
BG10026 42.69838 23.32268 1050 10026 240 4G 1001


Download sample cellfile.

If you use this cellfile after choosing to show sites in Menu - Settings and starting the app you will see this three sector 2G/3G/4G site in the center of Sofia, Bulgaria: