EENA workshop on Advanced Mobile Location

1. BJÖRN SKOGLUND, SOS ALARM
AML – testing and implementation
in Sweden
78,5% OF ALL 112 CALLS IN SWEDEN
ARE MADE FROM MOBILE PHONES

2. TESTING
 Tests done with Sony and the MNO Telia Sonera
 85 test calls to the single emergency number 112, January – March 2016
 Test calls from outdoor – indoor, fixed location – moving in car, on ground –
underground, city – rural environment, shopping malls
 Overall a very positive result:
- 57 very accurate locations (within 65 meters)
- AML text message generally arrived within seconds
- Way better than cell-id location
 Tests with Google starting next week

3. TEST RESULTS
Number
calls Made from:
Accurate location
(within 65 metres)
OK location (within
1,5 kilometres) No location Other
43 Outdoor 42 1 (deviation ~150 m)
14 Indoor 9 5
13 Underground 1 4 (avg 1164 m) 8
14 Shopping mall 5 7 2 ("Case not closed")
1 Without SIM-card 1 (expected)
2 Emergency roaming 2 (expected)

4. RURAL ENVIRONMENT
Cell-id
location
AML location

5. IN THE MIDDLE OF STOCKHOLM
Exakt AML-
position!
RADIUS: 19 M
Cell-id
location
AML location

6. SHOPPING MALL IN THE MIDDLE OF STOCKHOLM
RADIE: 35 M
Cell-id
location
AML location

7. CONCLUSIONS
OUTDOOR
 Very good location accuracy, average radius 16,7 metres
 High share of calls giving (correct) location
= very useful
INDOOR
 Location or not depdending on type of building (concrete walls, thick roof),
 Good location accuracy, average radius 29,9 metres
= useful if/when location delivered

8. CONCLUSIONS
UNDERGROUND
 More often than not, no location delivered
 When delivered (in 38% of test calls), average radius 1164 metres
= still useful if/when delivered
SHOPPING MALLS
 Location delivered in 42% of test cases, surprisingly low figure(?)
 There should have been a higher degree of location deliverance with access of WiFi
than it really did(?)
 When delivered, average radius 33 metres
= useful if/when location delivered

9. TIME SCHEDULE
Test 1
Sony & Telia
Test 2
Sony & Telia
Test 3
Sony & Telia
Start of SOS Alarm
project: “Location
of Mobile Phones
Through GPS”
“Go” from 3
out of 4 MNOs
Test 4: Google
and all MNOs
AML
implemented in
Sweden
Decisions on
interface in
digital map
Final testing
Judicial aspects on
integrity matters
– report *
* including a
review by the
Swedish Post and
Telecom Agency
Mail to Apple
CEO in Sweden
JAN DECNOVOCTSEPAUGJULJUNMAYAPRMARFEB

10. THANKS!
bjorn.skoglund@sosalarm.se
+46 10 140 82 56