Part J: Technology

Mobile Location Services: Mobile Location Services: Market StrategiesMarket Strategies

Ovum Report 200Ovum Report 20000

Part J:Part J:TechnologyTechnology

Pasi PekkinenPasi Pekkinen

[email protected]@navinova.com

Navinova OyNavinova Oy

19/04/2319/04/23 / PP / PP 22Ovum Report 2000: Mobile Location ServicesOvum Report 2000: Mobile Location Services

Key messagesKey messages

• Standardising positioning technologies and the Standardising positioning technologies and the interchange of data with other systems a great interchange of data with other systems a great challengechallenge

• LBS will be a part of personalised servicesLBS will be a part of personalised services

• Basic positioning is available: Cell IDBasic positioning is available: Cell ID

• More accurate methods will be availableMore accurate methods will be available– require investments in devices and/or networksrequire investments in devices and/or networks

• Market will be limited until a clear choiceMarket will be limited until a clear choice


Key messages (2)Key messages (2)

• Terminal-based solutions more accurateTerminal-based solutions more accurate– Devices require modificationsDevices require modificationsimplications on the size, complexity and power implications on the size, complexity and power

consumptionconsumptionaffects on the costaffects on the cost

• If positioning solely within device, the role of If positioning solely within device, the role of the operator diminishesthe operator diminishes


Technological implicationsTechnological implications

• Sharing of information between operators, Sharing of information between operators, application and service providers and device application and service providers and device vendors poses a major challengevendors poses a major challenge

• Different applications have different Different applications have different requirementsrequirements– commerce transactions must be securecommerce transactions must be secure– navigational services near real-timenavigational services near real-time


Terminal-based technologiesTerminal-based technologiesGPSGPS• Measurement of signal from satellitesMeasurement of signal from satellites

– minimum 4 satellites need to be visibleminimum 4 satellites need to be visible

• Time of arrival of the signal usedTime of arrival of the signal usedA-GPSA-GPS• continuously operating GPS reference network continuously operating GPS reference network

provides assistance in speed and accuracy of first provides assistance in speed and accuracy of first fixfix

GPS drawbacksGPS drawbacks– urban canyon effecturban canyon effect– requires all handsets to be modifiedrequires all handsets to be modified


Terminal-based: E-OTDTerminal-based: E-OTD

• Device measures signals from Device measures signals from 3 base 3 base stations and observes the time differencestations and observes the time difference

• Device requires software updateDevice requires software update• Base stations need to be synchronised or Base stations need to be synchronised or

location units need to be installedlocation units need to be installed• Slightly slower response times than Cell IDSlightly slower response times than Cell ID• Active measurement by the device or base Active measurement by the device or base

stations transmit their position and timing stations transmit their position and timing values by cell broadcastvalues by cell broadcast


Network-based (1)Network-based (1)

• Cell IDCell ID– Fallback positioning method: no modifications Fallback positioning method: no modifications

requiredrequired– Usually combined with TA Usually combined with TA Cell ID+ Cell ID+

• Time of Arrival (TOA)Time of Arrival (TOA)– measurement of the propagation time of a signal measurement of the propagation time of a signal

from device to from device to 3 LMUs3 LMUs– high investment costshigh investment costs


Technology comparisonTechnology comparisonLocation Location technologytechnology

Terminal Terminal modificationsmodifications

Network Network modificationsmodifications

Investment Investment requiredrequired

OwnershipOwnership

Cell ID + TACell ID + TA NoneNone NoneNone LowLow OperatorOperator

TOATOA NoneNone Measurement Measurement unitsunits

HighHigh OperatorOperator

A-GPSA-GPS GPS receiverGPS receiver Measurement Measurement unitsunits

MediumMedium HandsetHandset

E-OTDE-OTD Software updateSoftware update Base station Base station modificationsmodifications

MediumMedium MixedMixed


Standards bodies (1)Standards bodies (1)

• GSM AssociationGSM Association– 01/2000 document on LBS service requirements01/2000 document on LBS service requirements

• ETSIETSI– ETSI standard GSM 03.71: functional description ETSI standard GSM 03.71: functional description

for location servicesfor location services

• UMTSUMTS– 3GPP for third generation: Cell ID, GPS, IPDL-3GPP for third generation: Cell ID, GPS, IPDL-

OTDOAOTDOA


Standards bodies (2)Standards bodies (2)• WAP ForumWAP Forum

– work underway for standard enabling LBS for WAPwork underway for standard enabling LBS for WAP

• LIFLIF– founded by Ericsson, Motorola and Nokia in 09/2000founded by Ericsson, Motorola and Nokia in 09/2000– to develop inter-operable LCS solutionto develop inter-operable LCS solution– generic interface for application developersgeneric interface for application developers

• BluetoothBluetooth– defining local-positioning profile as part of future defining local-positioning profile as part of future

Bluetooth specification (target 2001)Bluetooth specification (target 2001)

Part J: Technology

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