Location Based Services -
Technology & System Operation

Introduction to Location Based Services

What are Location Based Services?
General Description of Location Based Services
Description of Potential Location Based Services
Location Based Charging / Tracking Services / Public Safety Services / Emergency Services / Commercial Services / Location Based Information Services / …
The Business Perspective of Location Services
Charging of Location Services ? Accuracy of the Location Determination / Accuracy requirement of the offered Service / Accuracy required by the US FCC mandate / What are the future developments on the LCS sector?
The different Positioning Mechanisms used for LCS
Received Signal Strength / Timing Advance / Angle of Arrival / Time of Arrival / Observed Time Difference / Global Positioning System

Overview of Different LCS Releases (Rel.99, Rel.4 and Rel5)
Generic LCS Logical Architecture / Network Architecture in GERAN and UTRAN
Network Elements and Interfaces
SMLC / GMLC / LMU Type A / LMU Type B / …
Mobile Station Assisted vs. Mobile Station Based Positioning Technologies
Differences / Pros & Cons / Overview of Specified Technologies in GERAN and UTRAN
Mobile Station Assisted Positioning Technologies
Detailed description of Mobile Station Assisted E-OTD, OTDOA, U-TDOA, A-GPS / Flow Diagrams / Procedures / Pros & Cons / Which additional Resources are required in the Network?
Mobile Station Based Positioning Technologies
Detailed Description of Mobile Station Based A-GPS and E-OTD / Flow Diagrams / Procedures / Pros & Cons / Which additional Resources are required in the Network?
Comparison
Costs / Accuracy / Pros & Cons

Signaling Protocols and Interfaces
BSSAP-LE / BSSLAP / LLP / RRLP / SMLCPP
Selected Procedures / Mobile Originated Location Request
Information Transfer Between a BSS Based SMLC and a Target Mobile Station / Information Transfer between a BSS based SMLC and a Type B LMU

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