Document 185480
Greg GregBurdett Burdett Director, Director,Business BusinessDevelopment Development Geometrix GeometrixMobile MobileLocation LocationCenter Center [email protected] [email protected] How to Deploy Location-based Services Now and in the Future © ANDREW CORPORATION 4/07 Andrew Corporation is the foremost global supplier of one-stop, end-to-end radio frequency (RF) subsystem solutions. © ANDREW CORPORATION 4/07 Mobile Location Geo-Location applications on the mobile network Gateway MLC Internet Serving MLC Mobile Network LCS has turned wireless networks, beyond purely communication networks, into an instrument for locating mobile devices and their users. © ANDREW CORPORATION 4/07 Location Based Services – by application There are three principal categories of locationenhanced services: Copyright © 1996 Northern Telecom 1. Commercial Enterprise and Consumer Services - Require or are enhanced by knowledge of a mobile’s position to answer questions such as "Where's my delivery truck?”, "Where's my child?”, asset tracking, roadside assistance, driving directions, etc. Copyright © 1996 Northern Telecom Copyright © 1996 Norther n T elec om 2. Public Safety - Provide the location of wireless callers to emergency service centers such as 112, 911, etc. 3. Security - Locate and track specific individuals or items of interest © ANDREW CORPORATION 4/07 Location Technology Characteristics Typical Accuracy (approx) Yield/ Reliability Scalability Handset Participation Cost Cell ID 1000s Meters High High No Low Enhanced Cell ID 300m to 1000s Meters High High No Moderate U-TDOA 50 to 300m High Low No High A-GPS 10 to 50m Moderate High Yes Moderate Hybrid 10 to 100’s A-GPS Meters High High Yes Moderate Location Method © ANDREW CORPORATION 4/07 Location Solutions in a 3GPP/OMA Context Lh HLR ALI GMLC GMLC/ / SLP SLP Lc SCF E2 (ESP) Lg Core Le (MLP) SMLC SMLC Lup Ls Lb SGSN MSC A Gb Applications and Emergency MSC Iu Iu Lbis BSC User Plane UTDOA UTDOA server server Abis BTS LMU LMU LMU Iupc RNC GERAN UTRAN Iub Stand Stand Alone Alone SMLC SMLC UTDOA UTDOA server server Node B LMU LMU LMU © ANDREW CORPORATION 4/07 SMLC : Cell and Enhanced Cell Positioning Sector Information Sector Information Legacy Handset Serving Base Station (Cell Identity) Legacy Handset Serving Sector Information Timing Advance Serving Base Station (Cell Identity) RXLEVs RXLEV1 Neighbor Base Station 1 RXLEV2 Timing Advance Legacy Handset Serving Base Station Neighbor Base Station 2 © ANDREW CORPORATION 4/07 SMLC : A-GPS Functionality Reference Server* WARN Location Server PerformLocationResponse SS7A RRLP-MeasurePosition + GPS assistance data RRLP- Position Info MSC PerformLocationRequest BSC/RNC Periodic request for GPS assistance data for defined grids GPS Data Collector A-GPS PCF SMLC Cell & Grid Data • BTS Lat/Lon • Grid extent and element size Cell & Grid Database © ANDREW CORPORATION 4/07 Secure User Plane Location • Assumes measurements come from device (SET) • Bypasses signaling control plane to communicate with SET • SUPL session occurs over IP on user plane • Network-initiated requests “stimulated” by SMS or WAP data push • Device provides serving Cell-ID in start message •SLP needs cell database to, e.g., generate suitable GPS assistance data • Lead SUPL application is for A-GPS used for LBS purposes SET* MLS Application/ SUPL Agent Llp * SET – SUPL Enabled Terminal © ANDREW CORPORATION 4/07 Focus on: Hybrid A-GPS Periodic request for GPS assistance data for defined grids WARN* Network Measurement Requests Network Measurements MeasurePositionRequest + GPS acquisition assistance data GPS Data Collector GPS + Network Measurements Hybrid A-GPS Positioning Function SMLC • • Cell & Grid Data • BTS Lat/Lon • Grid extent and element size Cell & Grid Database * Wide Area Reference Network (WARN) of fixed GPS receivers used to determine assistance data for the area of coverage. Hybrid AGPS combines GPS measurements with other range measurements • Range measurements obtained from network – e.g. Timing advance, Round trip time, Uplink time difference of arrival measurements, etc. • Handset measurements, other than GPS, also used – e.g. Downlink time of arrival measurements • Use assumed altitude for Cell sites. Yield improvements are the primary benefit in environments of poor GPS acquisition (eg indoor, dense urban, etc) © ANDREW CORPORATION 4/07 What will the future bring? The rise of IP, VoIP, IMS and network convergence Multi-access IP location architecture - Need to locate subscribers beyond 3GPP/2 access WiFi / WiMAX Access • Cell-id : Similar to GSM/UMTS, a Cell-id based location can be determined • Network-based measurements : Use of WiMAX network information to determine a more accurate location than Cell-id. • A-GPS : Use SUPL to locate A-GPS enabled WiFi/WiMAX devices - Fixed Access • Locating subscribers on DSL, Cable or within Enterprises IP Location Applications - VoIP 911 Converged Location Based Services, including IMS Security applications © ANDREW CORPORATION 4/07 A lead application – emergency services for VoIP NENA defined (i2) migratory architecture Emergency network Call Handling 911 Call Call Server Server Location Location Server Server Geodetic & Civil loc,n ESGW ESGW VoIP VoIP Positioning Positioning Center Center Selective Selective Router Router ISUP IP call ALI locn E2+ Civic addr MSAG validation PAM Local ALI Global ESZ boundary data CAMA ERDB National VDB © ANDREW CORPORATION 4/07 Summarizing the future More of the same – evolving approaches to location measurement and determination Location technologies for WiMAX, WiFi, DSL, Cable,….. More architectures – pulling things together under the forces of convergence (VoIP 911, IMS, etc) Location technology today is diverse, complex, and powerful Cell and Rx level info RF survey DB Radio Camera The future even more so. Andrew Corporation will be there! © ANDREW CORPORATION 4/07 Andrew’s location technology products Geometrix® MLC User Plane and Control Plane Solutions - SMLC, GMLC, SAS, and SUPL Location Platform - SLP Provides Any Location Technology - CID, E-CID, U-TDOA, A-GPS, Hybrid A-GPS Vendor-Preferred, Operator-Preferred © ANDREW CORPORATION 4/07 Thank you Copyright © 1996 Northern Telecom © ANDREW CORPORATION 4/07 ANDREW CORPORATION One Company. A World of Solutions. © ANDREW CORPORATION 4/07
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