Upload
gigi-ion
View
219
Download
0
Embed Size (px)
Citation preview
8/13/2019 Do You Know Where I Am Now - Good!
1/26
Do You Know Where Iam Now? Good!(?)
Jack Kozik Applications Product Group CTO, Americas
20-Nov-08
External Talk for NIU IEEE Student Branch
8/13/2019 Do You Know Where I Am Now - Good!
2/26
All Rights Reserved Alcatel-Lucent 2008, #####2 | 11/20/20082 | NTT Voice and Multimedia | November 2008
Summary
LBS Killer App Since 1998. Why taking off now? EE Engineering Problems, solved.
Talk Title:"Do you know where I am now? Good!(?)"
Abstract:
Location Based Services have been one of the killer application (since 1998?!) formobile networks. Only within the last year or so do we see major mobileoperators offering "Friend Finder" or "Turn-by-turn Navigation" services. Electrical
Engineers have had to work a large number of engineering, economic andregulatory challenges to make the original LBS service concepts commericallypractical.
This talk gives a technical look at these challenges and discusses how new 4Gtechnologies will enhance location services. Service examples covered: E911,turn-by-turn directions, friend finder, geo-fencing, advertising insertion, and linksto social networking services.
8/13/2019 Do You Know Where I Am Now - Good!
3/26
All Rights Reserved Alcatel-Lucent 2008, #####3 | 11/20/2008
Outline
Alcatel-Lucent Background
Location Base Service Devices
GPS Gadgets
Mobile Network Operator Geolocation Services
Verizon
AT&T
Blackberry
How Does The Network Know the location of the Phone?
User Plane and Control Plane
How Does an Application Find Out?
How to Reduce Power/Spectrum Consumption?
8/13/2019 Do You Know Where I Am Now - Good!
4/26
All Rights Reserved Alcatel-Lucent 2008, #####4 | 11/20/2008
8/13/2019 Do You Know Where I Am Now - Good!
5/26
All Rights Reserved Alcatel-Lucent 2008, #####5 | 11/20/2008
8/13/2019 Do You Know Where I Am Now - Good!
6/26
All Rights Reserved Alcatel-Lucent 2008, #####6 | 11/20/2008
Garmin nuvi 270, GPSMAP 60Cx
8/13/2019 Do You Know Where I Am Now - Good!
7/26All Rights Reserved Alcatel-Lucent 2008, #####7 | 11/20/2008
Verizon Wireless Location Services
8/13/2019 Do You Know Where I Am Now - Good!
8/26All Rights Reserved Alcatel-Lucent 2008, #####8 | 11/20/2008
AT&T Navigator
8/13/2019 Do You Know Where I Am Now - Good!
9/26
All Rights Reserved Alcatel-Lucent 2008, #####9 | 11/20/2008
Mapquest for Blackberry (w or w/o GPS)
8/13/2019 Do You Know Where I Am Now - Good!
10/26
All Rights Reserved Alcatel-Lucent 2008, #####10 | 11/20/2008
Wireless Assisted GPS
15M A-GPS Handsets Sold
TerminalsSold
100,000
4,300,000
14,600,000
0
2,000,000
4,000,000
6,000,000
8,000,000
10,000,000
12,000,000
14,000,000
16,000,000
Jan. 2002 July.2002 May.2003
More than 70 Handset Mod els
Chart from Qualcomm
http://www.verizonwireless.com/ics/plsql/equipment.phone_popup?p_mkt_code=Northern%20California&p_name=LG%20VX3100http://www.3gtoday.com/devices/devices/device1576.htmlhttp://www.lginfocomm.com/products/product_detail.php?p=268/13/2019 Do You Know Where I Am Now - Good!
11/26
All Rights Reserved Alcatel-Lucent 2008, #####11 | 11/20/2008
Jacks Gadgets
Moto Razr2
E911 Network Derived
Moto Q
GPS, E911 Only
Sierra Wireless AirCard
No GPS
8/13/2019 Do You Know Where I Am Now - Good!
12/26
All Rights Reserved Alcatel-Lucent 2008, #####12 | 11/20/2008
Engineering Questions
How does the network know where the phone is?
Without a GPS Chip?
With a GPS Chip
8/13/2019 Do You Know Where I Am Now - Good!
13/26
All Rights Reserved Alcatel-Lucent 2008, #####13 | 11/20/2008
Location Technologies Cell id or GPS Chip in Phone
Standalone GPS
Handset based method, using only GPS satellitesignals
high performance,
poor availability in dense areas, high Time to First
Fix & Power Consumption
Cell-Id andCell-Id ++
Cell identification and network measurements(Timing Advance, Time of Arrival, Received Power,)
low cost & very high availability
accuracy performance ~4-500 m
Enhanced Assisted-GPS
Handsets-based or assisted method combiningGPS information and Mobile network
information (cell-id)
Betteravailability in dense areas,
Low Time to First Fix & Power Consumption
Very high accuracy
Standard interfaces between the network andthe handset (SUPL)
8/13/2019 Do You Know Where I Am Now - Good!
14/26
All Rights Reserved Alcatel-Lucent 2008, #####14 | 11/20/2008
Network Based Solutions No GPS Chip in the Phone
Two predominant solutions
Uplink Time Difference of Arrival - UTDOA
triangulates time of arrival of signal
Angle of Arrival - AOA measures angle of
signal
E911 ph II accuracy for PDE
67% - w/in 100 m
95% - w/in 300 m
Remaining difficulty - accuracy requiresmultiple cell sites
Not observed - network based solution
workable in a rural environment with low
cell site density
UTDOA
Requires 3
cell sites
AOARequires 2
cell sites &
special
antennae
H b id S l i GPS Chi i Ph l Al /E h l
8/13/2019 Do You Know Where I Am Now - Good!
15/26
All Rights Reserved Alcatel-Lucent 2008, #####15 | 11/20/2008
MobileSwitching
Center
PDE
assistinginformationabout GPS
signal
Mobile w/Assisted
GPS
GPSsatellites GPS signals
Reference GPSreceiver/service
PositionDeterminingEquipment
IS 41
Base stations
MPC
MobilePositioning
Center
Hybrid Functionality Uses Network & GPS
Hybrid Solutions GPS Chip in Phone plus Almanac/Ephemeral
and info from mobile network
LBS Apps
Web
8/13/2019 Do You Know Where I Am Now - Good!
16/26
All Rights Reserved Alcatel-Lucent 2008, #####16 | 11/20/2008
E911 Driven Technology Development
US Carrier Network Location Technology
Former Alltel CDMA AGPS
Former AT&T Wireless GSM
TDMA
UMTS
UTDOA+
UTDOA+
GPS
Former Cingular Wireless GSM
TDMA
UTDOA+
UTDOA+
Nextel iDEN* GPS
Quest CDMA AGPS
Sprint PCS CDMA AGPS
Verizon Wireless CDMA AGPS
T-Mobile GSM UTDOA+
* iDEN uses netwo rk assi sted, MS-based, GPS posit io ning . CDMA does MS-ass isted
+UTDOA not necessar i ly expected to get use o utside USA due to co st of LMUs.
Dominant
technologies have
emerged as:
A-GPS
for CDMA* and
UTDOAfor GSM
8/13/2019 Do You Know Where I Am Now - Good!
17/26
All Rights Reserved Alcatel-Lucent 2008, #####17 | 11/20/2008
Engineering Questions
How does an application know where the phone is?
Without a GPS Chip?
With a GPS Chip?
8/13/2019 Do You Know Where I Am Now - Good!
18/26
All Rights Reserved Alcatel-Lucent 2008, #####18 | 11/20/2008
LBS Standards: Control Plane
Control Plane - Location queries are
managed at the network level on controland traffic channel. Applicable standardis IS-801 for mobile and 3GPP2 X.S.0002for network
Used for E-911
Existing Phones: A-GPS or no GPS chip
Network knows because E911 is useroriginated
LBS Application sends Web Messageand gets Lat/Long back
MPCMS MSC
HLR
PDE
LBS
ClientSMSC
Ad
Content
8/13/2019 Do You Know Where I Am Now - Good!
19/26
All Rights Reserved Alcatel-Lucent 2008, #####19 | 11/20/2008
LBS Standards: User Plane
User PlaneLocation queries are
managed in an IP network requiring.Applicable standards: TIA-1020, OMA-AD-SUPL-V1_0-20050719-C
A-GPS Phones
Web Application asks software runningin the phone.
Network only knows last reportedlocation of phone.
8/13/2019 Do You Know Where I Am Now - Good!
20/26
All Rights Reserved Alcatel-Lucent 2008, #####20 | 11/20/2008
Example : User Plane
HLR
SMSC
WirelessNetwork
GSM
1- Send a Location Request
2- Checkapplication profile& location privacy
3- Flash SMS
For paging
4- ATI request
AlcatelLocation Server
5- Retrieve theX,Y coordinates
6- Send a
Location Response
8/13/2019 Do You Know Where I Am Now - Good!
21/26
All Rights Reserved Alcatel-Lucent 2008, #####21 | 11/20/2008
8/13/2019 Do You Know Where I Am Now - Good!
22/26
All Rights Reserved Alcatel-Lucent 2008, #####22 | 11/20/2008
Network Elements Two key pieces
Gateway Location Center
Application interface for locationservices
Application authentication
Privacy checking
Access independent
Examples GMLC, MPC
Serving Location Center
Determines the location
Talks to access network and user
device Understands the access it serves
Examples SMLC, PDE
Gateway
Location Center
Serving
Location Center
8/13/2019 Do You Know Where I Am Now - Good!
23/26
All Rights Reserved Alcatel-Lucent 2008, #####23 | 11/20/2008
Engineering Problem
How do I build applications that have lots of location dips?
If data connection always on, then battery drain
Need to push info to the terminals so they can run with uplink dormant
Geofencing!
8/13/2019 Do You Know Where I Am Now - Good!
24/26
All Rights Reserved Alcatel-Lucent 2008, #####24 | 11/20/2008
Sally,this is
the bestpizza in
NYC
Sally gets a
GMS
Sallys profile &
loc. match a GMS
30% offall Shirtsat TheShop
Sally gets a
GMS
Sallys profile &
loc. match a GMS
Peers or 3rdParty Content
Providers leave GMSes.
message for Sally around a
location
Sally this isthe best
pizza in NYC
- MikeSign me up
x Accept
Sally opts-in
Geofence Matching Engine
A users location is compared to geofences. An event is triggered
(e.g., send SMS) when the opted-in user enters or leave a specific geofence.
Opt-inSMSorWAP
WEB
Sally moves
around the world
30% off all
Shirts at The
Shop
Code XR456
8/13/2019 Do You Know Where I Am Now - Good!
25/26
All Rights Reserved Alcatel-Lucent 2008, #####25 | 11/20/2008
Joe is at
school.
ConfirmationMessage!
Joe has
left the
school
grounds
WARNINGMessage!
Mom defines
Geo-Fences andSchedule
Kid Tracker monitors the location
of the child throughout the day.
User Scenario: Kid Tracker
Parent Defined Geo-Fences
Mom gets a message based on
her rules!Kid Tracker monitors the location
of the child throughout the day.
HomeHomeHome
8/13/2019 Do You Know Where I Am Now - Good!
26/26
All Rights Reserved Alcatel-Lucent 2008 #####26 | 11/20/2008
www.alcatel-lucent.com