104/22/02 mobile positioning e-911 & lbs bikash saha eus hub manager (mps/lbs) 972.583.5865...
TRANSCRIPT
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2 04/22/02
Agenda• Drivers• E-911 Mandate• MPS for GSM
* Positioning Technologies* Architecture
• Ericsson Solution– Roadmap– Design and Verification Procedure
• Why Ericsson MPS
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3 04/22/02
Drivers
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4 04/22/02
USA’s FCC Regulation: E-911 Ph2
Wireless Internet
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5 04/22/02
E-911 Mandate
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6 04/22/02
Phase II Accuracy Standards For Handset-Based Solutions:
* 50 meters for 67 percent of Calls
* 150 meters for 95 percent of calls
For Network-Based Solutions:* 100 meters for 67 percent of calls
* 300 meters for 95 percent of calls
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7 04/22/02
Recent FCC Actions Request for Relief
* Over the past few years, carriers have been asserting the need for relief from E-911 rules
* FCC set forth standard for carriers seeking relief:
>Plan that is specific, focused, and limited in scope
>As close as possible to full compliance
>Clear path to full compliance
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8 04/22/02
Recent FCC Actions Approval of Compliance Plans
* 10/5/01: FCC approved, with conditions and modifications, revised implementation plans of five nationwide wireless carrier
>Nextel, Sprint, Verizon and GSM portion of AT&T Wireless and Cingular networks
>Sixth nationwide carrier VoiceStream had their plan approved year before
>Plans contain specific schedules and benchmark
>Quarterly reports required to monitor compliance
>Move to enforcement mode
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9 04/22/02
Points of Concern Delay in reaching interim benchmarks towards full compliance. Some uncertainty about manufacturers producing necessary equipment in timely fashion. ILEC issues. Funding for PSAPs. Still a long road before end-to-end systems are operational throughout the country.
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10 04/22/02
Going forward The tragedies of September 11 give a new sense of urgency to the rollout of wireless E911. More than ever, mobiles phone have become indispensable tools for calling for help and for delivering help.The future of location technology is strong
*As deployment proceeds, technology and system-wide performance will improve.
*Customers increasingly will insist on having it available (like air bags and seatbelts in cars).
*Commercial location-based services will add to customer value and carrier revenue
But to get to the future, those involved-- including the FCC-- will have to redouble efforts to see that the promise of this life saving technology is fulfilled
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11 04/22/02
Mobile Positioning System (MPS)
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12 04/22/02
Mobile Positioning System Overview -GSM
YellowPages
E-OTD
WAP
PSAP
O/M CenterBilling CenterCustomer Administration Center
MobileNetwork
AGPS
Internet
API
Cell/Sector ID/TimingAdvance
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13 04/22/02
ServingMLC
E-911 Phase 2 CAS Push Wireless Emergency Call - GSM
S/R
MS
Ai, Di
MSC
BSS
GatewayMLC
PSAP
ALI DB
ESME
ESNELEC
CM Service Request
BSSMAP Complete Layer 3[CM Service Request]
BSSMAP Perform Location
BSSMAP Perform Location SMLC determines the positioningmethod and instigates the messagesfor the specific positioning methodBSSMAP Perform Location Ack
BSSMAP Perform Location Ack
Call Setup IAM [CgPN = callback#, GDP=ESRD, CGL=lat/long
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14 04/22/02
ServingMLC
E-911 Phase 2 NCAS Pull Wireless Emergency Call - GSMInitial position already available in GMLC
S/R
MS
Ai, Di
MSC
BSS
GatewayMLC
PSAP
ALI DB
ESME
ESNELEC
CM Service Request
BSSMAP Complete Layer 3[CM Service Request]
BSSMAP Perform Location
BSSMAP Perform Location SMLC determines the positioningmethod and instigates the messagesfor the specific positioning methodBSSMAP Perform Location Ack
BSSMAP Perform Location Ack
Call Setup
MAP Subscriber Location ReportMAP Subscriber Location Report Ack
ESPOSREQ [callback# or ESRK, INITIAL]esposreq [initial lat/long]
Call Release
MAP Subscriber Location Report[MSISDN, IMSI, MSC address, ESRD, ESRK, CALL RELEASE]
MAP Subscriber Location Report Ack
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15 04/22/02
Mobile Positioning System - GSM
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16 04/22/02
GSM LCS Architecture
HLR
ExternalLCS Client
GatewayMLC
Lh
MSC/VLR
BSCBTS/LMU B
MS
Um
Other PLMN GMLC
Lg
SMLC
SMLC
Ls(NSS)Lb(BSS)
LpLMU Type A
Um
LMU Type B
Abis
LeLgAAbis
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17 04/22/02
Positioning Methods in GSM
Cell- ID and Timing Advance (CGI+TA)
– Network based method Network Assisted GPS (A-GPS)
– Terminal based method Enhanced Observed Time Difference (E-OTD)
– Terminal based method Uplink Time-Of-Arrival (UL-TOA)
– Network based method
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18 04/22/02
Cell-ID and Timing Advance
Based on existing CGI and
TA
Default/Fallback
Positioning Method
Used to assist other
positioning mechanisms
Accuracy depends on cell
size and MS distance from
cell
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19 04/22/02
E-OTD
Time of Arrival information is collected by
the MS
LMU
LMU
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20 04/22/02
E-OTDReal Time Difference
information is collected by the LMU
LMU
LMU
Observed Time Difference(OTD)
information is collected by the
MS
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21 04/22/02
E-OTD
OTD and RTD information is
transmitted to the network
PLMN
LMU
LMUObserved Time
Difference (OTD)information is
collected by the MS
Real Time Differenceinformation is collected by
the LMU
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22 04/22/02
E-OTD MAIN CHARACTERISTICS
Only small software modifications in the MS needed
Utilises existing capabilities of the GSM network
Accuracy between 50 and 300 m
LMUs have to be placed between every 1-3 base stations
Cost of network upgrade
-+
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23 04/22/02
A-GPS
PLMN
GPS Assist information collected by the network
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24 04/22/02
A-GPS
Network assist information is transmitted to the MS
GPS Assist information collected by the network
PLMN
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25 04/22/02
A-GPS
GPS position fix is determined by the MS (with network assistance)
GPS Assist information collected by the network
Network assist information is transmitted to the MS
PLMN
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26 04/22/02
A-GPS
GPS position information is transmitted to the network
GPS Assist information collected by the network
Network assist information is transmitted to the MS
GPS position fix is determined by the MS (with network assistance)
PLMN
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27 04/22/02
Assisted GPS variants MS based GPS
– Give full assistance data to MS
– Perform Position calculation in MS
– Greater MS complexity
MS assisted GPS– Provide limited assistance data
– Return TDOA values
– Perform Position calculation in the network
– More signaling, no stand-alone position
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28 04/22/02
A-GPS MAIN CHARACTERISTICS
Lower power consumption than GPS
Fast Time-To-First-Fix (TFF)
Accuracy down to 10m
Allows for navigation
Limited indoor coverage (GPS has no indoor coverage)
Fall back solutions in comparison to GPS
Additional HW +SW in the MS
A few DGPS reference receivers needed
-+
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29 04/22/02
GSM POSITIONING METHODS - RELATIVE ACCURACIES
Accuracy (meters)
1 3 10 30 100 300 1K 3K 10K 30K
Sub-urban
Urban
Indoor
Rural
City
CGI.GPSA-GPS CGI+TA
E-OTD
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30 04/22/02
SERVICE DESCRIPTON
MT-LR Mobile Terminating Location RequestMO-LR Mobile Originating Location RequestNI-LR Network Induced Location Request
GMLC PLMN MS
MT-LRMO-LR
NI-LR
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31 04/22/02
EXAMPLES OF SERVICES
Navigation
Real time advertisment
Radio Network Planning
E911, E112
Dynamic call routing
Home Zone Billing
Information
Tracking
Games
FriendFinder
BikeFinder
BrandFinder
MO-LRNI-LRMT-LR
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32 04/22/02
Positioning Methods in UMTS
Cell Id
Cell Id + RTT (Round Trip Time)
OTDOA with/without IPDL
Assisted GPS
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33 04/22/02
Ericsson Solution
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34 04/22/02
MPS-G RoadmapMPS-G Roadmap
SingleCell TAEricssonNetworks
MPS-G 3.0
In Service GSM R8.0
MPS-G 4.0
SingleCell TA/ATIGSM 98/99CompliantBSS-Centric
GA Q1 02GSM R9.0
MPS-G 5 Lite
E-OTD /// LMUsType A
SingleCell TA
GA Q2 02 GSM R9.0
E-OTD /// LMUsType A and Type B
SingleCell TA
A-GPS
MPS-G 5.0 Full
October, 2002 GSM R9.1
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35 04/22/02
Design and Verification Procedure
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36 04/22/02
Summary of Network Impacts on Positioning Accuracy
• Timing delays due to multipath and distributed components
• Cell size versus accuracy targets and traffic distribution
• Relative base station location and MS-BTS location
• BCCH and BSIC planning and adequate C/I(MS & LMU)
• Neighbor definitions and positioning considerations
•Mobile Station assistance Data
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37 04/22/02
System Prerequisites for E-OTD
• Each cell seen by at least 1 LMU
• RXLev at LMU Antenna connector >= -110 dBm
• C/I at LMU >= 10 dB
• C/A (200 kHz) >= -8 dB
• C/A (400 kHz) >= -41 dB
• Mean excess delay for LMU is assumed to be 0.15 s
• GDOP between 1 and 1.5
• BTS coordinates known in three dimensions within 5-10 m
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38 04/22/02
Network Recommendations to Meet Positioning Accuracy Targets
Actions will be investigated in order increasing cost and complexity.
• BSIC Replanning
• BCCH Frequency Plan Retune
• Changes to Certain RN Features (HCS, Cell Load Sharing, etc.)
• Modifications to existing sites (antennas, output power, etc.)
• Site Additions in Certain Areas
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39 04/22/02
Core Network Design - GMPC and SMPC Dimensioning
OtherPLMN
Lb
GMPC
GMPCExternal LCS client
SMPC
MSC/VLR
HLR
BSC
A
Type A
Abis
Type B
RBS
LMU
LMU
Lg
LsLh
The number of and location of all MPS-G nodes
All MPS-G node interconnections to the BSC and LMUs
Link dimensioning
Throughput and delay calculations
Redundancy
The impact, if any, of additional links and traffic on the existing GSM nodes.
Comprehensive core network diagram.
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40 04/22/02
Design and Verification Process
Parameter Settings Preparation
Parameter Settings Preparation
Site Survey, Evaluation & Measurements
Site Survey, Evaluation & Measurements
3rd Best Serving SiteCoverage Analysis
3rd Best Serving SiteCoverage Analysis
Initial LMU Design and Required Network Changes
Initial LMU Design and Required Network Changes
GDOP AnalysisGDOP Analysis
G/SMPC DimensioningG/SMPC DimensioningLMU-A/BTS SMS DimensioningLMU-A/BTS SMS Dimensioning
Implementation of Network Changes
[Carrier Responsibility]
Update of LMU DesignUpdate of LMU Design
Carrier InputCarrier Input
LMU BTS ListLMU BTS List
INP
UT
DE
SIG
N
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41 04/22/02
Design and Verification Process (cont’d)
Positioning VerificationPositioning Verification
Verification ReportVerification Report
Installation and Integration of Additional
Equipment[If Necessary]
Positioning Re-Verification[If Necessary}
Positioning Re-Verification[If Necessary}
VE
RIF
ICA
TIO
N
AcceptanceAcceptance
Installation and Integration of Equipment
Not part of design or verification process
Involves field work
Analysis activities
Design and dimensioning activities
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42 04/22/02
Why Ericsson MPS
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43 04/22/02
MPC Applications
and Content
Consulting /Integration
NetworkSystems
Devices /Terminals
End-to-end solution
!
Design &Verification
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44 04/22/02
26 commercial contracts already signed (As of today))
4 contracts signed in US from 3 major operators for MPS solution both in
GSM (GMPC, SMPC/PDE, LMU-A/B and SW upgrade for the other nodes in Core network as well as access network) &
TDMA
~5 trials
~3 Letters of Intent
MPS references
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45 04/22/02
Complete Solutions from Ericsson Location Technology & Roadmap
Mobile Positioning System (TDMA, GSM, UMTS) Basic and high location accuracy Roadmap for the future Presence in all LCS standard activities
Location Based Applications Ericsson together with Partners
Service Enabling Products WAP Gateway, Middleware, WAP Application Server, etc.
Services Design & Verification Integration, installation, training etc. Branding, pricing, etc.