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The Road(map) AheadTREY FORGETY – NENA DIRECTOR OF GOVERNMENT AFFAIRS
ROGER HIXSON – NENA TECHNICAL ISSUES DIRECTOR
Roadmap Principles
•Dispatchable Location
•Open, Transparent Testing
•Better Lat/Long, Standard Confidence
•Enforceable Metrics and Fallbacks
What Isn’t Changing
•Latitude / Longitude / Uncertainty
•ALI Formats
•MSAG / LVF Validation of Addresses
•Best estimate available from network
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Dispatchable Location
+38.806 -077.058 U=50 C=90%
↓1700 Diagonal Rd Ste 500
Alexandria VA 22314
Dispatchable Location Defined
“A location…that consists of the street address of the calling party, plus… suite, apartment or similar information … .”
WPH2
1700 DIAGONAL ROAD
SUITE 500
ALEXANDRIA VA
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Beacon Addresses
MSAG(Valid/Invalid)
National Emergency
Address Database
Validated Addresses Only
evolvedServingMobile
LocationCenter (eSMLC)
Beacon Entry Time
MAC/UUID(From Phone)
AutomaticLocation
Identification(ALI)
PSAP Call Taking Display
Call Time
Corroboration
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Timeline
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11/17/2014 11/17/20171/15 4/15 7/15 10/15 1/16 4/16 7/16 10/16 1/17 4/17 7/17 10/17
8/15Dispatchable Location Demo
5/16 - 11/16New WHP Products Support DL2/15
Working Groups Established
11/17National Emergency Address Database Online
11/15 - 5/16Standards Work Completed
(Range)
DL Tech
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WiFi MAC Address
04:0A:1A:66:BF:F1
Bluetooth LE UUID123e4567-e89b-12d3-a456-
426655440000
DL Roll Out
←Post-Standards Deployment of new VoLTE Handsets
• Network-wide support at standards + 24 months
• Delivery to ALI providers at standards + 48 months
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18-24 mo, 25%
24-30 mo25%
30-36 mo50%
Sales
Lat/Lon Tech
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A-GNSS
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O-TDOA
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Improving L/Lo Tech
•Carriers will deploy O-TDOA ,A-GNSS, and hybrid network-wide.
•New VoLTE phones will support both.
•Carriers crowd-sourced WiFi & Bluetooth X/Y in ~36 months.
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24 mo, 50%
36 mo25%
48 mo25%
Sales
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reported position
uconfidence=63%
true position
Uncertainty “u” is proportional to the confidence factor “c”.
o The smaller the confidence percentage, the shorter the uncertainty distance.
o The larger the confidence percentage, the longer the uncertainty distance.
uconfidence=95%
Position determining
system is 95% confident that true
position falls within this circle
Position determining
system is 63% confident that true
position falls within this circle
Standard Confidence
Test Bed
•Permanent test-bed for DL & X/Y/Z
•Objective, Transparent, Open, & Public-Safety Inclusive
•Representative of all morphologies(Dense Urban, Urban, Suburban, Rural)
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Test Bed
•Quantify the “art of the possible.”
•Characterize the performance of technologies.
•Provide “compliant fractions” to assess live-call data.
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Test Bed
•Two Locations:◦San Francisco◦Atlanta
•Provides a mix of construction types, structure density, and topology.
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Performance Metrics
6 “Monitored Markets”19
Performance Measurement
• Aggregated monthly, reported quarterly.
• Fraction of fixes by technology.
• PSAPs can get positioning source data!
• 9-1-1 Authorities must work with carriers to resolve performance issues before seeking FCC enforcement actions.
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Performance Requirements
DL or ≤ 50m Technology for:◦40% of all wireless 9-1-1 calls within 2 years
◦50% “ “ “ “ “ “ “ 3 years
◦70% “ “ “ “ “ “ “ 5 years
◦80% “ “ “ “ “ “ “ 6 years21
Vertical Information
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Vertical Location Information
•Within 6 years, carriers must, for each of the top 25 Cellular Market Areas (by population) deploy either:◦ 1 DL reference point for every 4 residents; or
◦ Z-Axis technology covering at least 80% of the population.
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Formal Evaluation
•NENA and APCO continuously evaluate carrier performance and adherence to timelines.
•Reasonable variations (e.g., standards development cycles) are expected, but will be monitored.
•At 36 months, a major assessment will determine whether the development and deployment of Dispatchable Location technology is “on track.”
•If not, carriers must supplement DL with Lat/Lon and Altitude technologies.
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