Mobile Positioning E911 LBS Bikash Saha EUS HUB

Mobile Positioning E-911 & LBS Bikash Saha EUS HUB Manager (MPS/LBS) 972. 583. 5865 bikash. saha@ericsson. com 1 04/22/02

Agenda • Drivers • E-911 Mandate • MPS for GSM * Positioning Technologies * Architecture • Ericsson Solution – Roadmap – Design and Verification Procedure • Why Ericsson MPS 2 04/22/02

Drivers 3 04/22/02

4 USA’s FCC Regulation: E-911 Ph 2 4 Wireless Internet 4 04/22/02

E-911 Mandate 5 04/22/02

Phase II Accuracy Standards l For Handset-Based Solutions: * 50 meters for 67 percent of Calls * 150 meters for 95 percent of calls l For Network-Based Solutions: * 100 meters for 67 percent of calls * 300 meters for 95 percent of calls 6 04/22/02

Recent FCC Actions l Request for Relief * Over the past few years, carriers have been asserting the need for relief from E-911 rules * FCC set forth standard for carriers seeking relief: >Plan that is specific, focused, and limited in scope >As close as possible to full compliance >Clear path to full compliance 7 04/22/02

Recent FCC Actions l Approval of Compliance Plans * 10/5/01: FCC approved, with conditions and modifications, revised implementation plans of five nationwide wireless carrier >Nextel, Sprint, Verizon and GSM portion of AT&T Wireless and Cingular networks >Sixth nationwide carrier Voice. Stream had their plan approved year before >Plans contain specific schedules and benchmark >Quarterly reports required to monitor compliance >Move to enforcement mode 8 04/22/02

Points of Concern Delay in reaching interim benchmarks towards full compliance. l Some uncertainty about manufacturers producing necessary equipment in timely fashion. l l ILEC issues. l Funding for PSAPs. Still a long road before end-to-end systems are operational throughout the country. l 9 04/22/02

Going forward The tragedies of September 11 give a new sense of urgency to the rollout of wireless E 911. More than ever, mobiles phone have become indispensable tools for calling for help and for delivering help. l l. The future of location technology is strong *As deployment proceeds, technology and system-wide performance will improve. *Customers increasingly will insist on having it available (like air bags and seatbelts in cars). *Commercial location-based services will add to customer value and carrier revenue But to get to the future, those involved-- including the FCC-will have to redouble efforts to see that the promise of this life saving technology is fulfilled l 10 04/22/02

Mobile Positioning System (MPS) 11 04/22/02

Mobile Positioning System Overview -GSM AGPS Yellow Pages Internet API Mobile Network WAP Cell/Sector ID/Timing Advance PSAP O/M Center Billing Center Customer Administration Center 12 E-OTD 04/22/02

E-911 Phase 2 CAS Push Wireless Emergency Call - GSM MSC S/R Ai , Di BSSMAP Complete Layer 3 [CM Service Request] BSSMAP Perform Location Ack BSSMAP Perform Location BSS MS LEC ESNE Gateway MLC PSAP ESME ALI DB Serving MLC SMLC Location determines the positioning BSSMAP Perform method and instigates the messages BSSMAP Perform Location for the specific. Ack positioning method CM Service Request Call Setup IAM [Cg. PN = callback#, GDP=ESRD, CGL=lat/long 13 04/22/02

E-911 Phase 2 NCAS Pull Wireless Emergency Call - GSM Initial position already available in GMLC MSC S/R LEC Ai , Di BSSMAP Complete Layer 3 Gateway [CM Service Request] MLC BSSMAP Perform Location Ack BSSMAP Perform Location MAP Subscriber Location Report Ack BSS MS ESNE PSAP ESME ALI DB Serving MLC SMLC Location determines the positioning BSSMAP Subscriber Perform Location Report MAP Subscriber Ack ESPOSREQ [callback# or ESRK, INITIAL] and instigates the. Report messages [MSISDN, method IMSI, MSC address, ESRD, ESRK, CALL RELEASE] BSSMAP Perform Location esposreq [initial lat/long] for the specific. Ack positioning method Setup CM Service Request Call Release 14 04/22/02

Mobile Positioning System - GSM 15 04/22/02

SMLC GSM LCS Architecture SMLC LMU Type A Lp Um HLR Lb(BSS) Ls(NSS) Um A Abis MS BTS/ LMU B Lg BSC MSC/ VLR Abis LMU Type B Lh Le Gateway MLC External LCS Client Lg Other PLMN 16 GMLC 04/22/02

Positioning Methods in GSM l Cell- ID and Timing Advance (CGI+TA) – Network based method l Network Assisted GPS (A-GPS) – Terminal based method l Enhanced Observed Time Difference (E-OTD) – Terminal based method l Uplink Time-Of-Arrival (UL-TOA) – Network based method 17 04/22/02

Cell-ID and Timing Advance l l Based on existing CGI and TA Default/Fallback Positioning Method Used to assist other positioning mechanisms Accuracy depends on cell size and MS distance from cell 18 04/22/02

E-OTD LMU 19 Time of Arrival information is collected by the MS 04/22/02

E-OTD Real Time Difference information is collected by the LMU LMU 20 Observed Time Difference(OTD) information is collected by the MS 04/22/02

E-OTD Real Time Difference information is collected by the LMU OTD and RTD information is transmitted to the network LMU PLMN LMU 21 Observed Time Difference (OTD) information is collected by the MS 04/22/02

E-OTD MAIN CHARACTERISTICS - + l Only small software modifications in the MS needed l LMUs have to be placed between every 1 -3 base stations l Utilises existing capabilities of the GSM network l Cost of network upgrade l Accuracy between 50 and 300 m 22 04/22/02

A-GPS Assist information collected by the network PLMN 23 04/22/02

A-GPS Assist information collected by the network Network assist information is transmitted to the MS PLMN 24 04/22/02

A-GPS Assist information collected by the network Network assist information is transmitted to the MS GPS position fix is determined by the MS (with network assistance) PLMN 25 04/22/02

A-GPS Assist information collected by the network Network assist information is transmitted to the MS GPS position information is transmitted to the network GPS position fix is determined by the MS (with network assistance) PLMN 26 04/22/02

Assisted GPS variants l MS based GPS – Give full assistance data to MS – Perform Position calculation in MS – Greater MS complexity l MS assisted GPS – Provide limited assistance data – Return TDOA values – Perform Position calculation in the network – More signaling, no stand-alone position 27 04/22/02

A-GPS MAIN CHARACTERISTICS - + l Lower power consumption than GPS l Additional HW +SW in the MS l Fast Time-To-First-Fix (TFF) l A few DGPS reference receivers needed l Accuracy down to 10 m l Allows for navigation l Limited indoor coverage (GPS has no indoor coverage) l Fall back solutions in comparison to GPS 28 04/22/02

GSM POSITIONING METHODS - RELATIVE ACCURACIES A-GPS CGI+TA GPS CGI. E-OTD Rural Suburban Urba n City Indoor 1 3 10 30 100 300 1 K 3 K 10 K 30 K Accuracy (meters) 29 04/22/02

SERVICE DESCRIPTON GMLC PLMN MS MO-LR MT-LR NI-LR MT-LR MO-LR NI-LR Mobile Terminating Location Request Mobile Originating Location Request Network Induced Location Request 30 04/22/02

EXAMPLES OF SERVICES MT-LR NI-LR MO-LR Information Tracking Games Friend. Finder Bike. Finder Brand. Finder E 911, E 112 Dynamic call routing Home Zone Billing Navigation Real time advertisment Radio Network Planning 31 04/22/02

Positioning Methods in UMTS l Cell Id + RTT (Round Trip Time) l OTDOA with/without IPDL l Assisted GPS 32 04/22/02

Ericsson Solution 33 04/22/02

A-GPS MPS-G Roadmap E-OTD /// LMUs Type A Single Cell TA Ericsson Networks Single Cell TA/ATI GSM 98/99 Compliant BSS-Centric Single Cell TA E-OTD /// LMUs Type A and Type B Single Cell TA MPS-G 3. 0 MPS-G 4. 0 MPS-G 5 Lite MPS-G 5. 0 Full In Service GSM R 8. 0 GA Q 1 02 GSM R 9. 0 GA Q 2 02 GSM R 9. 0 October, 2002 GSM R 9. 1 34 04/22/02

Design and Verification Procedure 35 04/22/02

Summary of Network Impacts on Positioning Accuracy • Timing delays due to multipath and distributed components • Cell size versus accuracy targets and traffic distribution • Relative base station location and MS-BTS location • BCCH and BSIC planning and adequate C/I(MS & LMU) • Neighbor definitions and positioning considerations • Mobile Station assistance Data 36 04/22/02

System Prerequisites for E-OTD • Each cell seen by at least 1 LMU • RXLev at LMU Antenna connector >= -110 d. Bm • C/I at LMU >= 10 d. B • C/A (200 k. Hz) >= -8 d. B • C/A (400 k. Hz) >= -41 d. B • Mean excess delay for LMU is assumed to be 0. 15 s • GDOP between 1 and 1. 5 • BTS coordinates known in three dimensions within 5 -10 m 37 04/22/02

Network Recommendations to Meet Positioning Accuracy Targets Actions will be investigated in order increasing cost and complexity. • BSIC Replanning • BCCH Frequency Plan Retune • Changes to Certain RN Features (HCS, Cell Load Sharing, etc. ) • Modifications to existing sites (antennas, output power, etc. ) • Site Additions in Certain Areas 38 04/22/02

Core Network Design - GMPC and SMPC Dimensioning SMPC LMU HLR Lb Type A Ls Lh BSC A RBS Abis Lg MSC/ VLR GMPC LMU External LCS client Type B GMPC 39 Other PLMN 04/22/02

INPUT Design and Verification Process Carrier Input Site Survey, Evaluation & Measurements DESIGN 3 rd Best Serving Site Coverage Analysis GDOP Analysis Initial LMU Design and Required Network Changes LMU BTS List Implementation of Network Changes [Carrier Responsibility] Update of LMU Design LMU-A/BTS SMS Dimensioning G/SMPC Dimensioning Parameter Settings Preparation 40 04/22/02

Design and Verification Process (cont’d) VERIFICATION Installation and Integration of Equipment Positioning Verification Installation and Integration of Additional Equipment [If Necessary] Positioning Re-Verification [If Necessary} Verification Report Not part of design or verification process Involves field work Acceptance Analysis activities Design and dimensioning activities 41 04/22/02

Why Ericsson MPS 42 04/22/02

End-to-end solution Devices / Terminals Network Systems Applications MPC and Content Design & Verification Consulting / Integration ! 43 04/22/02

MPS references l 26 commercial contracts already signed (As of today)) l 4 contracts signed in US from 3 major operators for MPS solution both in 4 GSM (GMPC, SMPC/PDE, LMU-A/B and SW upgrade for the other nodes in Core network as well as access network) & 4 TDMA l ~5 trials l ~3 Letters of Intent 44 04/22/02

Complete Solutions from Ericsson 4 Location Technology & Roadmap * Mobile Positioning System (TDMA, GSM, UMTS) * Basic and high location accuracy * Roadmap for the future * Presence in all LCS standard activities 4 Location Based Applications * Ericsson together with Partners 4 Service Enabling Products * WAP Gateway, Middleware, WAP Application Server, etc. 4 Services * Design & Verification * Integration, installation, training etc. * Branding, pricing, etc. 45 04/22/02