AML workshop - Deployment reports 1
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EENA Workshop on Advanced Mobile Location
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AML workshop - Deployment reports 1
- 1. AML – Advanced Mobile Location 999 – improving precision for mobile calls
- 2. UK Emergency Service BT Public Network Fixed/Mobile Networks BT 112 Call Centres Stage 1 PSAP BT (6 sites) ~ 28m calls/year Public networks (BT and others) Police 47% Ambulance 49% Fire 4% Coastguard <1% 999/112 (158 Local Controls – Stage 2 PSAPs) 999/112 call handling : Voice + Location - Voice : Mobile, Fixed, VoIP - eSMS for hearing impaired ( also ITUv21 text over voice, real time text using special terminals) - Telematics in certain vehicles that includes a voice call + separate SMS data message ~62% Mobile >80 Communication Providers (CPs) PSTN-IP Gateways VoIP CPs Location Hub – uses network and handset location Location VPN Some handset locations via SMS – AML Network Location – GMLC for mobiles
- 3. Deploying Google’s AML in UK • UK already has AML - some handsets on some networks but only slowly growing • Google’s Android OS update to Play Services accelerates deployment -> means each handset provider + network does not have to maintain it’s own AML functionality • BT PSAP tested with Google : 100s of test calls in a variety of locations to optimise Thunderbird Configuration for SMS :- - use of “data SMS” - time to gather location (20 seconds) - works alongside existing AML functionality (on some handsets) • Coordinated meetings with Mobile Networks, Google and UK Regulator - further testing with each network using wider range of handsets - agreed common UK Thunderbird Partner Configuration - allowed agreement to be signed and some changes to online Ts and Cs made - agreed gradual rollout : enabling small % calls to start • Rollout started on 6 June 2016
- 4. Thunderbird rollout in UK Calls/day from day 1 (6th June) • Day(2pm-2pm) Calls Throttle (%Enabled) • 1 (Mon-Tue) 35 2% (2 MNOs @2%) • 2 (Tue-Wed) 59 • 3 (Wed-Thu) 73 • 4 (Thu-Fri) 162 4% • 5 (Fri-Sat) 200 • 6 (Sat-Sun) 262 • 7 (Sun-Mon) 236 • 8 (Mon-Tue) 367 10% (3 MNOs @10%) • 9 (Tue-Wed) 476 • 10 (Wed-Thu) 586 • 11 (Thu-Fri) 716 • Positioning Method breakdown Position Method Count Percentage • Wifi 1638 49.47% • GNSS 998 30.14% • No Loc 497 15.01% • Cell 178 5.38% • Grand Total 3311 100.00% Handsets Alcatel, EE, HTC, Huawei, LG, Motorola, Oneplus, Samsung, Sony, Vodafone……
- 5. Voice call set-up ~5s BT999 TTA ~1s BT PSAP handling ~8s Police TTA ~6s Second Location Hub search Re-query after ~ 20 secs Timeline to most effectively use the handset location User makes call Call answered by Stage 1 PSAP Police call handling Time (seconds) Event 0 5 3010 15 20 25 Call connect initiated. Call answered by Stage 2 PSAP First Location Hub search. Network Location Data Arrives ~1 sec after call answered Actual Handset Location arrival times 37
- 6. Live use • Examples from today – if internet access • Sample of 1000 Thunderbird Results • 15% <10m radius • 10m<30%<20m • 20m<30%<50m • 50m<5%<200m • 200m<5%<2.5km • 15% No location