An Explanation To Open Mobile Alliance Mobile Location ...docbox.etsi.org/STF/Archive/STF321_TISPAN3_EC_Emergency_Call...An Explanation To Open Mobile Alliance Mobile Location Services

3rd. Emergency Services Workshop – Brussels, November 2007 © LogicaCMG 2007. All rights reservedSlide # 1

An Explanation To

Open Mobile Alliance

Mobile Location Services

Olaf Lem

LogicaCMG Geo-ICT, The Netherlands

Slide # 2 3rd. Emergency Services Workshop – Brussels, November 2007 © LogicaCMG 2007. All rights reserved

Introduction

• Olaf Lem

– LogicaCMG Geo-ICT since 1997

–Projects in Telecoms, Energy & Utilities and Public Transport

– Standardisation Officer for AGILE-project since September 2005

• Project funded by EU under 6th. Framework Programm (FP6)

• AGILE aims at Mass Market Location Based Services (LBS)

• Integration of Galileo & Mobile Telecommunications Networks

• AGILE Website: http://www.galileo-in-lbs.com

–Represent LogicaCMG in OMA and OGC

• LogicaCMG Geo-ICT

• OMA Mobile Location Services (MLS)

• Assisted GNSS � back to SUPL


LogicaCMG Geo-ICT


• Netherlands (40)

• Portugal (80)

• USA (10)

• UK (20)

• Finland (30)

• Germany (10)

• Brazil (10)

LogicaCMG Geo-ICT – Competences & Experience

• LogicaCMG Geo-ICT Competence Centre in Nieuwegein (NL)

• > 20 years of experience and knowledge

• Independent Geo-ICT system integrator

• Technical Committee Member of the Open Geospatial Consortium (OGC)

Worldwide 200 Geo-ICT experts


LogicaCMG Geo-ICT – Partners

Business Partner Solutions

Business Partner

Certified Advantage Partner

Registered Solution Provided Partner

Associate Developer Partner

Value Added Reseller

Member Developers Network


LogicaCMG Geo-ICT – Markets

Project volume approximately € 20 million

Active in many markets

• Utilities

• Oil and Gas

• Water Companies

• Telecommunication

• Industry, Transport and Logistics

• Public Sector

• Traffic and Transportation

• Finance


The Power of LogicaCMG Geo-ICT

SAP

Competence

Test

Competence

Oracle

Competence

EAI

CompetenceJAVA

Competence

Microsoft

Competence

Geo-ICT

Competence

• LogicaCMG Worldwide:

– IT consultancy, systems integration and outsourcing Services

– Formed in December 2002

– Around 20.000 Staff

– Offices in 34 Countries

– Headquartered in the UK

– Listed at the London and Amsterdam Stock Exchange


Open Mobile Alliance – Mobile Location Services (MLS)


Mobile Location Services in Daily Practise

E911/112 PSAP

Mobile Operator(s)

Oops … !


OMA Mobile Location Services (MLS) – Architectural Diagram


OMA Mobile Location Protocol (MLP)


OMA Privacy Checking Protocol (PCP)


OMA Roaming Location Protocol (RLP)


OMA Secure UserPlane Location (SUPL) Protocol


Assisted GNSS


Positioning based on Triangulation

Satellite

(T1- T0) x SpeedOfLight = Distance


How does Satellite Positioning work ?

•• Satellites are circling (e.g. nonSatellites are circling (e.g. non--geostatic) geostatic) around the Eartharound the Earth

••Which means that at every time of Day, the Which means that at every time of Day, the position of the Satellites varyposition of the Satellites vary

•• So it depends on your position and current So it depends on your position and current time, which Satellites are time, which Satellites are ‘‘visiblevisible’’

•• The position of Satellites at a certain time and The position of Satellites at a certain time and position on Earth is known as the position on Earth is known as the ““AlmanacAlmanac””

•• The receiver has to know which Almanac is The receiver has to know which Almanac is applicable to calculate itapplicable to calculate it’’s current positions current position


The Receiver has to Calculate the Almanac

• Calculation of the Almanac:

1. Scanning for ‘visible’ satellites

2. Fixing the current UTC-time (taken from the satellites signal)

3. Rejecting impossible Almanacs (due to visible satellites)

4. Establishing the right Almanac

• Calculating the position (standard receiver):

1. Interpret satellite signals against the Almanac

2. Establish position, accuracy and reliability


Why Assisted GNSS has been Invented

• Time To First Fix (TTFF)

• Energy Consuming Calculations

• Accuracy

• That is why Assisted GNSS has been invented:

–Reference Location (e.g. Current Cell-ID)

–Reference Time (e.g. Current Time in the GSM-Network)

–Navigation Model (Visible Satellites and Clock-Corrections)

–Other Corrections (e.g.. Ionosferic, Differential, etc.)


Systems Involved in Assisted GNSS

Cell

BTSBSC

BTS

BTS

AGNSS Server

SMLC

MS

Location

requested

Assistance data

elaboration

Assistance Data request

Assistance Data delivery

Satellite

Satellite

Satellite


Back to OMA Mobile Location Services & SUPL


OMA SUPL 2.0 Sequence Diagram


OMA Mobile Location Services

• OMA-RD-MLS-V1_2-20070904-C.doc(Candidate Version 1.2 – 04 September 2007)

• OMA-TS-MLP-V3_3-20070831-D.doc(Draft Version 3.3 – 30 Aug 2007)

• OMA-TS-RLP-V1_1-20070831-D.doc(Candidate Version 1.1 – 31 August 2007)

• OMA-TS-PCP-V1_1-20060414-D.doc(Draft Version 1.1– 14 Apr 2006)

• SUPL 1.0:

– OMA-AD-SUPLV1_0-20070615-A.doc (Approved Version 1.0 – 15 Jun 2007)

– OMA-TS-ULP-V1_1-20070809-D.doc (Draft Version 1.1 –09 Aug 2007)

• SUPL 2.0:

– OMA-AD-SUPLV2_0-20070831-D.doc (Draft Version 3.0 – 31 August 2007)

– OMA-TS-ULP-V2_0-20070905-D.doc (Draft Version 2.0 – 5 Sep 2007)


3GPP Location Services (LCS) – Release 7

• TS 22.071 Release 7

– 3GPP Location Services (LCS) Service description; Stage 1


– 3GPP Functional stage 2 description of Location Services


– 3GPP Radio Resource LCS (Location Services) Protocol (RRLP)


– 3GPP Radio Resource Control (RRC)


OMA LOC (SUPL) Summary

• Open Mobile Alliance - Location Workgroup - Mobile Location Services:

– MLS operates at ‘Application Level’ (e.g. provides functionality to build applications)

– External Interface is defined by MLP

– Privacy Checking Protocol (PCP)

– Roaming Location Protocol (RLP)

– Internal Interface (e.g. Network to the Phone) is defined by SUPL

• OMA Secure UserPlane for Location (SUPL) protocol:

– Provides the ability to position a mobile phone

– Provides additional functionality for positioning (Area-event & Triggered locations)

– Supports Cell-ID, EOTD, AFLT and (A-)GPS, and will support (A-)Galileo

– SUPL acts as a wrapper for 3GPP-protocols

• The protocols maintained by 3GPP performs the actual positioning

– Exchange of Assistance Data

– Returns the Position to SUPL


Thank You for Your Attention

If you have any Questions

don’t hesistate to contact me

[email protected]

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An Explanation To Open Mobile Alliance Mobile Location ...docbox.etsi.org/STF/Archive/STF321_TISPAN3_EC_Emergency_Call...An Explanation To Open Mobile Alliance Mobile Location Services