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Wireless Location Technology and Services

Wireless Location Technology and Services. Overview and Tutorial. Presentation Outline. Acronym List Wireless Location Technology: Definition Location Adds Value FCC Report and Order Technology Approaches Implementation Business Opportunities Location Network Configurations.

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Wireless Location Technology and Services

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  1. Wireless Location Technology and Services Overview and Tutorial

  2. Presentation Outline • Acronym List • Wireless Location Technology: Definition • Location Adds Value • FCC Report and Order • Technology Approaches • Implementation • Business Opportunities • Location Network Configurations

  3. List of Terms and Acronyms • Network-based location solutions - uses specialized location equipment within the network to determine location (TDOA, AOA, Multipath Analysis) • Handset-based location solutions - uses specialized electronics within the mobile handset to determine location (GPS, AFLT, OTD) • PDE - Position Determining Equipment • MPC - Mobile Position Center • FCC - United States Federal Communications Commission

  4. List of Terms and Acronyms • E 9-1-1 - United States Emergency Telephone Number • TDOA - Time Difference of Arrival • AOA - Angle of Arrival • GPS - Global Positioning System • PSAP - Public Safety Answering Point • CAS - Call-Path Associated Signaling • N-CAS - Non Call-Path Associated Signaling • SR - Selective Router • AFLT - Advanced Forward Link Trilateration • OTD - Observed Time Difference

  5. Wireless Location Technology Equipment and algorithms applied to wireless telecommunications to determine geographic position, and in some cases the velocity and direction of travel of wireless devices.

  6. North American Demand For Location Services • Industry analysts have forecasted that the location services marketplace in the United States will generate $4-8 billion annually by 2004. • FCC E 9-1-1 mandate

  7. Location Adds Value To Voice, Data, & Wireless Internet Services • Enhances voice related information and safety services • Enriches wireless data and telematics service offerings • Expands the types of wireless Internet applications and services supported through smart phones and intelligent devices • Differentiation via value-added location content • Enables more personalized information services

  8. U.A. Federal Communications Commission Third Report and Order Docket 94-102 Phase I - April, 1998 • Wireless carriers to supply cell site, sector, and call-back number for 911 calls.

  9. FCC 94-102 Phase II Requirements for Handset Solutions • Wireless carriers must: • Begin selling and activating ALI-capable handsets no later than March 1, 2001; • Ensure that at least 50% of all new handsets activated are ALI -capable no later than October 1,2001; and • Ensure that at least 95% of all new digital handsets activated are ALI-capable no later than October 1, 2002

  10. FCC 94-102 Phase II Requirements for Handset Solutions • Once a PSAP request is received: • Within 6 months or by October 1, 2001, whichever is later • Ensure that 100% of all new handsets activated are ALI-capable • Implement any network upgrades • Begin delivering location that satisfies Phase II requirements • Within 2 years or by December 31, 2004, whichever is later • Undertake reasonable efforts to achieve 100% penetration of ALI-capable handsets in its total subscriber base.

  11. FCC 94-102 Phase II Requirements for Network Solutions • Once a PSAP request is received: • Within 6 months or by October 1, 2001, whichever is later • Ensure that 100% of all new handsets activated are ALI-capable • Implement any network upgrades • Begin delivering location that satisfies Phase II requirements • Within 2 years or by December 31, 2004, whichever is later • Undertake reasonable efforts to achieve 100% penetration of ALI-capable handsets in its total subscriber base.

  12. FCC 94-102 Phase IILocation Accuracy Requirements • For network-based solutions • 100 meters for 67% of calls, and • 300 meters for 95% of calls • For handset-based solutions • 50 meters for 67% of calls, and • 150 meters for 95% of calls • The FCC has directed carriers to report their plans for implementing E911 Phase II, including technology they plan to use to provide caller location, by October 1, 2000.

  13. Technology Approaches • Network-Based Approaches • Time Difference of Arrival • Angle of Arrival • Multipath Analysis • Handset-Based Approaches • Global Positioning System • Network-Assisted GPS • Advanced Forward Link Trilateration • Enhanced Observed Time Difference

  14. Network - Time Difference of Arrival • Requires specialized receivers to be placed at the base station • Uses existing cell towers and infrastructure • Uses very accurate clocks to determine the difference in time in which a radio signal reaches different cell sites. The difference in time is then resolved to determine position, velocity, and heading.

  15. Network - Angle of Arrival • Requires specialized receivers to be placed at the base station • Requires construction of directional antenna array onto existing cell towers • Measures the direction of signal received at multiple towers with respect to antennas of known position to determine mobile position

  16. Network - Multipath Analysis • Requires specialized receivers to be placed at the base station • Requires construction of a multipath database on a location grid for a specific service area • Uses existing cell towers and infrastructure • Uses the multipath database to match the transmitter’s signal characteristics to determine a point on the location grid

  17. Handset - Global Positioning System • Requires GPS receiver and GPS antenna to be imbedded into the mobile telephone • Requires TDMA traffic channel resources to transmit location data • Employs signal timing techniques from four or more satellites from a constellation of 24 to determine position • Can require a significant time to compute position.

  18. Network-Assisted Global Positioning System • Requires GPS receiver and GPS antenna to be imbedded into the mobile telephone • Requires TDMA traffic channel resources to transmit assistance and location data • Requires special servers to be placed throughout the area of coverage to assist mobile receivers with acquiring GPS signals • Mobile GPS receivers communicate with stationary GPS servers to assist in position determination

  19. Handset - Advanced Forward Link Trilateration • A Time Difference of Arrival technique using the handset’s receiver. • Requires new phones with precise timing. • Needs systemwide Base Station Synchronization • Requires TDMA traffic channel resources to transmit location data

  20. Handset - Enhanced Observed Time Difference • A Time Difference of Arrival technique using the handset’s receiver and specialized reference receivers • Requires new phones or new software in phones. • Requires addition of new receivers throughout the network • Requires TDMA traffic channel resources to transmit assistance messages and location data

  21. The Evolving Standards for Location • TIA • TR 45.1 PN-4985 • geolocation for AMPS • estimated ballot, April 2000 • TR 45.2 PN-3890 • geolocation network support for AMPS, TDMA • estimated ballot, April 2000 • TR 45.3 • no specific geolocation support at this time • 3GPP2 • IS-2000 (UWC-136B) • no specific geolocation support at this time

  22. Compatibility with TDMA • Network Solutions • AOA, TDOA, Multipath Analysis require PN-3890 interconnect • does not require air interface modifications (TR 45.1, TR 4.3, UWC-136-B) • Handset Solutions • A-GPS, W-GPS, AFLT, E-OTD require PN-3820 interconnection • require air interface PN-4589 (TR 45.1) and UWC-136-B modifications

  23. Implementation Considerations • Network-based approaches • Additional equipment in base station • Use of telecommunication links between base station and mobile switch • Added system testing • Added system maintenance • Handset-based approaches • Additional equipment in base station • Additional equipment (servers) in network • Use of air interface resources between mobile station and base station • Use of telecommunication links between base station and mobile switching center • Added system testing • Added system maintenance • Handset upgrades/replacement • Distribution/inventory logistics

  24. Business Opportunities • Service differentiation • Revenue from new services • New subscribers as a result of new service offerings • More revenue from existing subscriber base • Improved retention as a result of enhanced services • Improved RF engineering efficiencies leading to cost reduction • Location is high value, low bandwidth data

  25. Location Powers The Wireless Web • Expands the variety of Internet applications • Enriches value added Internet content • Enables personalized, customized information • Location is high value, low bandwidth data for mobile applications

  26. Location Services Hotlist • Enhanced 911 • Traffic Information • Enhanced 411 Directory/Information • Navigational Assistance • Enhanced Roadside Assistance • Location Based Billing • Fleet Tracking • Stolen Vehicle Recovery • Personal Location • RF/Network Optimization

  27. Location data accompanied with 911 call, expedites emergency response time FCC mandate (94-102) driving demand for location capability Requires public safety answering point (PSAP) capable of displaying position data Appeals to consumers demand/desire for safety and security Improves retention Can save lives Enhanced 911 Service Opportunity

  28. Location enables customized, personalized traffic data based on actual users location or proximity to incidents Value added content for the mobile professional Strong demand for real-time traffic information New service revenue Service differentiation Improves subscriber value proposition Traffic Information Services Service Opportunity

  29. Location enables more personalized, customized information services Mobile Yellow Pages - supports shopping, dining, banking, emergency-medical inquiries among many others improves operator efficiency, don’t have to ask “where are you?” Enhances consumer convenience Creates more directory services applications Drives minutes of use/volume of transactions Enhanced 411 Directory/Information Services Service Opportunity

  30. Location enhances safety features of service Location improves response times Can assist in routing of calls to assistance centers Strong demand from wireless users New revenue stream Bundled service offerings Value-added retention tool Enhanced Roadside Assistance Service Opportunity

  31. Provides users with real-time directions Via live operator Via mobile mapping Internet applications Bundled service offering with real-time traffic conditions Drives minutes of use/volume of transactions Navigational Assistance Service Opportunity

  32. Tiered pricing based on users location at the time of call Software defined geographic billing zones Promotes usage at home or office Migrate wireline minutes of use to wireless Service differentiation Increase revenue and profits from low marginal-cost airtime Location Based Billing Service Opportunity

  33. Location devices Low-cost wireless transmitters Standard mobile telephone GPS Lowest cost approach Optional stolen vehicle recovery service Revenue from new service offering Key application for highly mobile workforce Bundled voice, data, location services Fleet/Vehicle Tracking Opportunity Service

  34. Requires small wireless device, adaptable to a number of applications Wireless location technology lowest cost approach Huge untapped market for personal location services Child location Medical alert Personal security Personal Location Service Opportunity

  35. Carriers can use subscribers to drive test their networks Mass volume location data with signal characteristics measured from multiple sites Helps RF engineers Quickly detect and correct adjacent and co-channel interference Determine actual uplink coverage Produce real-time coverage maps True-up RF modeling software Improves engineering response time to RF engineering problems Reduces time required for traffic engineering activities Provides hard data for new cell site placement Reduces drive testing All leading to reduced operating expenses Network/RF Optimization Service Opportunity

  36. Voice Caller ANI Cell Site P-ANI Tandem PSAP Terminals LEC 911 BS MSC CAS SR 911 CPE Location Network N-CAS Caller ANI Caller Location Example Of A Network-Based Location System Integration Into Wireless E9-1-1 System Base Station (BS), Mobile Switch (MSC), LEC Tandem (LEC), 9-1-1 Tandem (911), Selective Router (SR), Call-Path Associated Signaling (CAS) Non Call-Path Associated Signaling (N-CAS), Public Safety Answering Point (PSAP)

  37. Voice Caller ANI Cell Site P-ANI Tandem PSAP Terminals LEC 911 MSC BS Base Station Messaging Two-Way Air Interface Messaging Network Messaging SR 911 CPE N-CAS LS Caller ANI Caller Location Handset-Based Location System Integration Into Wireless E9-1-1 System Base Station (BS), Mobile Switch (MSC), LEC Tandem (LEC), 9-1-1 Tandem (911), Selective Router (SR), Landside GPS Server (LS) Non Call-Path Associated Signaling (N-CAS), Public Safety Answering Point (PSAP)

  38. For More Information Contact TruePosition at www.trueposition.com

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