Continuing the Quest for Wireless Location Accuracy Roger Marshall Roger Hixson, ENP

Session Topics Understanding today’s location landscape, and its evolution Problems that exist today, and how better location solves them Deeper look into how location advances impacts PSAP call taking and dispatch processes Considerations on displaying new caller location information

Session Topics What type(s) of location is available, and why is it needed? Which location related technologies are undergoing change? What is the expectation for 9-1-1 location in the future?

Location Landscape Drivers: FCC 4th Report & Order: Heightened Location Measured Location: 50m uncertainty, 90% confidence – this is geo location, also called a position estimate Provisioned Location: NEAD Dispatchable Location – this is a civic location, or street address Overall, there is a need for better, faster, dispatchable location

NEAD ARCHITECTURE

Location Landscape Changing Scenery: Moving from today’s Phase 1 & Phase 2 to add other location technologies Geo Location changes: Improved 2D location: AGNSS, O-TDOA, TBS, Crowd-Sourced Wi-Fi, Device based Hybrid, Small Cells 3D location including altitude Civic Location changes: Dispatchable location – From NEAD, civic address, includes: sub-address information: building, floor, room, zone, placetype, etc. Uncompensated Barometic Pressure

Location Landscape On Ramps: Access Technology Changes VoLTE becoming ubiquitous – offering more options for calling and data – therefore more options for location VoWiFi now being deployed – location systems based on Wi-Fi are less mature, diverse, and are changing RTT replacement of TTY – tied into a mobile location, whereas TTY for wireline relied on static location IoT sensors and alerts – no standards yet on 9-1-1 location 5G

Location Landscape Off Ramps: Changes for location displayed at the PSAP Assumption: both geo and civic (e.g., dispatchable) location forms New Class of Service label definitions WDL2 = ? WDL1 = ? WCVC = ? Repurposing of Customer Name field for wireless calls

Location Landscape DISCUSSION

National Emergency Address Database (Discussion Proposal) WDL2 indicates a wireless 9-1-1 call that provides: civic oriented data (address and sub-address location [where appropriate]) in addition to traditional WPH2 geodetic X, Y and Uncertainty data associated with the caller’s location (where available).  When this CoS is used, it indicates the civic oriented data is expected to meet the highest quality level criteria to be “dispatchable”, and indicates that the sub-address location within the building address is very close to the caller’s location.  

National Emergency Address Database (Discussion Proposal) WDL1 indicates a wireless 9-1-1 call that provides: civic oriented data (address and building zone [where appropriate]) in addition to traditional WPH2 geodetic X, Y and Uncertainty data associated with the caller’s location (where available).  When this CoS is used, it indicates the civic oriented data is expected to meet the medium-quality level criteria to be “dispatchable” by building zone but also indicates a less detailed location than WDL2. 

National Emergency Address Database (Discussion Proposal) WCVC indicates a wireless 9-1-1 call that provides: civic oriented data (address) in addition to traditional WPH2 geodetic X, Y and Uncertainty data associated with the caller’s location (where available).  When this CoS is used, it indicates the civic oriented data is not expected to meet the criteria to be “dispatchable” by either building zone (WDL1) or sub- address location (WDL2).

National Emergency Address Database (Discussion Proposal) Location Field Limitation of approximately 20 bytes on average (range may be 12 bytes to 60 bytes)? For NEAD uses, unique location items may be: Flr, Rm, Suite, Zone (floor quadrant) Mezz, Lobby, Bsmt?

WIRELESS PHONE PHASE I ANI/ALI 1 11 22 S2- 10 ESN=287 52 (210) 805-9949 15:21 08/18/2014 1101 TMOBILE-SE SECTOR-QF 616C5 (830) 511-6523 WRLS WIRELESS-SAN ANTONIO TX TMOBILE WIRELESS ALT#= TELCO=TMOB X= -98.46522 CNF=000 Y= 29.4092132 UNC=0 WIRELESS CALLER VERIFY CALLERS NUMBER VERIFY CALLERS LOCATION

WIRELESS ANI/ALI for Dispatchable Location 1 11 22 S2- 10 ESN=287 52 (210) 805-9949 15:21 08/18/2014 1234 Address Austin St (830) 511-6523 WDL2 CoS WIRELESS-SAN ANTONIO TX City, State Rm 541 BT=MTM Location TMOBILE WIRELESS w Civic Location Name ALT#= TELCO=TMOB X= -98.4972167 CNF=090 Y= 29.41387665 UNC=98 WIRELESS CALLER VERIFY CALLERS NUMBER VERIFY CALLERS LOCATION

WIRELESS ANI/ALI for Dispatchable Location WDL2 case 1 11 22 S2- 10 ESN=287 52 (210) 805-9949 15:21 08/18/2014 1234 Address Austin St (830) 511-6523 WDL2 CoS WIRELESS-SAN ANTONIO TX City, State Rm 541 BT=MTM Location TMOBILE WIRELESS w Civic Location Name ALT#= TELCO=TMOB X= -98.4972167 CNF=090 Includes geodetic est location as well, with UNC Y= 29.41387665 UNC=98 WIRELESS CALLER VERIFY CALLERS NUMBER VERIFY CALLERS LOCATION

WIRELESS ANI/ALI for Dispatchable Location WDL1 case 1 11 22 S2- 10 ESN=287 52 (210) 805-9949 15:21 08/18/2014 1234 Address Austin St (830) 511-6523 WDL1 CoS WIRELESS-SAN ANTONIO TX City, State Fl 5 NW Zone BT=MTM Location (plus/minus one floor and floor quadrant) TMOBILE WIRELESS w Civic Location Name ALT#= TELCO=TMOB X= -98.4972167 CNF=090 Includes geodetic est location as well, with UNC Y= 29.41387665 UNC=98 WIRELESS CALLER VERIFY CALLERS NUMBER VERIFY CALLERS LOCATION

WIRELESS ANI/ALI for WCVC case (estimated address but no detailed location) 1 11 22 S2- 10 ESN=287 52 (210) 805-9949 15:21 08/18/2014 1234 Address Austin St (est) (830) 511-6523 WCVC CoS WIRELESS-SAN ANTONIO TX City, State BT=MTM Location field including Building Type TMOBILE WIRELESS w Civic Location Name ALT#= TELCO=TMOB X= -98.4972167 CNF=090 Includes geodetic est location as well, with UNC Y= 29.41387665 UNC=98 WIRELESS CALLER VERIFY CALLERS NUMBER VERIFY CALLERS LOCATION

Location Landscape Buckle Up: What needs to be done Updated Procedures Updated Training materials Evolve CPE to display both location forms Migrate to NG9-1-1 to take advantage of richer information