Download - TDMAoverGSM
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EDGE Update
March 2003
Mike Bamburak
VP, Technology Strategy & Architecture
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Contents
GSM vs. TDMA
EDGE vs. GPRS
GSM Platform Revenues
EDGE Test Progress
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GSM Coverage
GSM same frequency overlay on TDMA No coverage issues because GSM has a 2 dB link budget
advantage over TDMA
GSM 1900 overlay on TDMA 850 1900 suffers a 10 dB propagation penalty over 850 Coverage issues addressed by:
o 2 dB GSM link budget advantage
o 3 dB higher gain / same size antennas
o 3-5 dB coverage enhancement techniques (tower top amps, air combining, etc.)
o Selectively add new cells, or
o Selectively install GSM 850 base stations and use GSM 850/1900 terminals
Limited area GSM roll-out GAIT terminals and Mobile Gateway
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GSM Capacity
3G Americas White Paper July 18, 2002Voice Capacity Enhancements for GSM Evolution to UMTSFigures 6 & 7: Comparison of analog, TDMA, GSM, 1xRTT and UMTS (in 10 MHz)
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GSM Infrastructure Cost
TDMA Capex per Incr. MOUTDMA Capex per Incr. MOU Baseline
Cost ImprovementCost Improvement
GSM Capex per Incr. MOUGSM Capex per Incr. MOU Lower $s
Immediate18% Benefit
Significant capital cost improvement betweentechnologies to manufacture MOUs
x
Based on same volume of minutesx Efficiency continues to improve with technology advancement
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GSM Terminal Costs
GSM 850/1900 vs. TDMA 850/1900 15-20% less cost! GSM terminals also include additional functionality:
o GPRS, polyphonic ring tones, Java, etc.
GSM 850/1900 vs. GSM 1900 Same Cost! AWS vendors have migrated to a dual or tri-band strategy
o The original $10 - $20 cost difference has been eliminated
GSM 850/1900 terminal availability AWS was already selling 3 models by the end of 2002
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AWS GSM/GPRS Deployment
MarketsLaunched67
LaunchedOn Budget
Rogers AT&T Wireless Top Markets:Montreal, Toronto, Vancouver, Edmonton, Calgary
* Roam Only* Roam Only
Manc hes ter/C onc ord
Miami/F t. L aud erdaleMinneapo lis /S t. P aul
New Hav en/Wa terbury, C T
New York
Oklaho ma C ity
O m ah a
Orlando
PhiladelphiaPh o en ix
Pittsburgh
Portland
Providence
R aleigh/D urham
Sacramento
S alt L ake C ityS an Antonio
S an Dieg o
S F O /O aklan d/S an J o s e
S cr an t o n
S eattle/Ta c oma
Shreveport
S p o k a n eS pringfield, MA
S pringfield, MO
S t. Louis
Stockton
T amp a/S t. P eters burg
Toledo
T u c s o n
T u l s a
W.P alm B eac h
W as hington D C
Wichita
W orchester
*B uffalo
*Rochester
*S aginaw
*S an J u an, P R
Albuquerque
AllentownAtlanta
Austin
Bakersfield
B altimore
B o s t o n
C h arlotte
C hicag oC leve land/Akro n
C olumbus
Dallas/Ft. Worth
Denver
Detroit
E l P a s o
Fres n oF t. Myers
Grand R apids
Greensboro/Winston-Salem
Harrisburg
Hartford
Honolulu
HoustonIndianapolis
Jacksonville
K ans as C ity
L a s V e g as
Los Angeles
SitesInstalled14,900+
GSM/GPRS market launch ahead of schedule and on budget
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EDGE vs. GPRS
BTS PCU
SGSN GGSNMS
Internet
GPRSGPRS Protocol
EDGE
radio
MSEDGE EDGE Protocol
No changes
SGSN GGSN
note: EDGE also uses existing GSM/GPRS spectrum and frequency plan
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EDGE Coverage
EDGE protocols, i.e. Link Adaptationand Incremental Redundancy, andvendor proprietary techniques increase
data coverage area
EDGE
GPRS
3 dB
application coverage comparison ina typical urban C/I limited system
10kbp
s/TS
10kbp
s/TS
~ 3dB
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EDGE Data Rates ~ 3 times GPRS
Distance
to BTS
Data rate (kbps)
GSM Cell Radius
MCS9
MCS8
MCS7
MCS5
MCS6
CS1 CS2 CS3MCS2
EGPRS MCS
GPRS CS
CS4
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Freed up capacity!EDGE Transceiver
Standard GSM/GPRS Transceiver
voice voice voice voice voice
voice voice voice voice voiceFree
TS
Free
TSdata
EDGE Capacity ~ 3 times GPRS
data data data
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EDGE Infrastructure Cost
AWS EDGE UpgradeAWS EDGE Upgrade CapexCapex
AWS GSM/GPRSAWS GSM/GPRS CapexCapex
EDGE IncrementalEDGE Incremental CapexCapex
$15/pop
$1-2/pop
~10%
AWS GSM capital specific to EDGE is marginal
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EDGE Terminal Costs
EDGE Terminal Impact Linear Power Amplifier for 8-PSK Modulation Greater Signal Processing
o More complex 8-PSK equalization/demodulation
o New Protocols, e.g. Incremental Redundancy, etc.
o Higher data rates
A Leading Terminal Vendor estimates that EDGE adds ~10% to terminal engine (diminishing with time) and < 10% to terminal product cost (engine cost does not include
color display, camera, etc.
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Integrated Corp. Contracts
Enterprise Data
Voice
IntegratedSolutions
1997 1999 2000 2001 2002 2003 20041998
NetworkTDMACDPD
GSMGPRS EDGE UMTS
AdvancedWireless Data
Electronic Care,
Provisioning, Reporting
Digital One Rate
Early Data
Solutions
Global Capabilities
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At the Forefront of the Enterprise Market
A dedicated business solutions team to orchestrate the Enterprise value chain
Software
Distribution Integration
Orchestrate
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Broad Range of Enterprise Devices
Enhanced Data Phones
Specialty Devices
Integrated PDAs
Notebook, Tablet PC
Expanding Device Capabilities
! Integrated voice / data devices
! Java, Bluetooth, EDGE, WiFi
! Multiple browser support
! SMS client support on all devices! E2E security
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Connecting subscribers to the people and information they care about most
Leader in Consumer Data
Messaging
SMS IM
Email
Location basedservices
MMS - MultimediaMessaging
mMode
Connect Manage
Entertain
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mMode Performance - December 2002 Snapshot
All of GSM subsdata enabled
mMode ARPU over $8.00
Over one-thirdof GSM subscribers
bought mMode
Additional 25%used data
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EDGE Concept and Performance
! EDGE adapts the radio modulation to the radio conditions
! Higher speeds under good conditions, slower under adverse
! As a result, EDGE is the most spectrally efficient technology
below 100Kbps
0
50
100
150
200
250
300
350
400
0 32 64 96 128 160 192 224 256
Ave rage Throughput (Kbps )
Sp
ectralEfficiency(Kbps/MHz
/sector)
W C DM A (10 M Hz)
cdma2000 1X (10 MHz)
E G P R S ( 10 M H z w B C C H )
EG P RS (1.25 M Hz w/o B C CH)
0
10
20
30
40
50
60
0 10 20 30
C /I [dB]
Thro
ughputperTSL[kb/s]
Typ icalurban m acro cellC/ I distribution
35%15% 15%35%
E G P R S
d ata
b o os t
75%
75%
75%
25%
25%
25%
EDGE
GPRS CS 1-4
GPRS CS 1-2
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Field Configuration
" EDGE Infrastructure: Nortel Core, Ericsson RAN
" EDGE Terminals: Nokia, Motorola
" BSC: 2
" BTS: 12 Total - 850/1900 MHz
BYB 501:212-30, IOG-20c
Nortel SGSN
GPRS 4.0 Software
Gb
R9.1 Software
Ericsson BSC
OSS
Abis
2206 - 1900MHzBTS 9.1B Software
Ericsson BTS
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0 5 10 15 20 25 30 35 400
10
20
30
40
50
60
C/I [dB]
Throughput[kbit/s]
Constant coding scheme, Tu3 no FH @ 900MHz
MCS9
MCS8
MCS7
MCS6
MCS5
MCS4
MCS3
MCS2
MCS1
IR unlimited memoryno IR
Throughput Simulation with IR
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EDGE Throughput AWS Lab and Field
Updated 1/31/03
20.4 kbpsMCS2
25.3 kbpsMCS3
31.6 kbpsMCS4
43.0 kbps39.52 kbpsMCS5
57.2 kbps52.24 kbpsMSC6
86.5 kbps82.0 kbpsMCS7105.0 kbps100.0 kbpsMCS8
114.2 kbps112.0 kbpsMCS9
FIELDLAB
Average throughput (DL)- 2 Timeslots- Avg RSSI =~50dBm
File Size = 500kBNo link Quality Control
(i.e. no LA or IR)Channel Throughput (On ABIS)
via Nethawk
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LA/IR Throughput AWS Lab
Application: FTP Downloads, Avg File Size: 500k
Ericsson RAN with Nokia 6200U Mobile
2 Time Slots / Maximum MCS = 8 / TU3 and TU50 Fading / No Hopping
Application Throughput as connected to the OSS server
0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
1 0 0
5 7 9 1 1 1 3 1 5 1 7 1 9 2 1 2 3 2 5
C /I (dB )
T
h
ro
u
g
h
p
u
t
(kb
LA + IR , N O fading LA + IR , TU50 LA + IR , TU3
Updated 2/6/03
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LA/IR Throughput Field Trial
Application: FTP Download / 500Kb files
Test Cluster: On a given sector face: 3 test Points chosen.
High: At site: ~25dB Med: mile from site ~15dB Low: 1 mile away ~10dB
0
10
20
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40
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60
70
80
90
100
L M H
C /I in H -M -L S teps
T
h
ro
u
gh
p
u
t
(k
C itt d t EDGE D l t
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Committed to EDGE Deployment
EDGE targeted to be fully deployed by mid-2003
Currently deploying all new
sites with EDGE technology
Currently deploying all newsites with EDGE technology
79% of our markets fully equippedwith EDGE radios by the
end of 2002, excluding Telecorp.
79% of our markets fully equippedwith EDGE radios by the
end of 2002, excluding Telecorp.
K T k A
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Key Take Aways
GSM platform is lowest cost service platform GSM 850 is here GSM platform enables international roaming and
associated revenue stream GPRS enables packet data and associated revenuestream
EDGE provides higher performance and lower costs
EDGE on track on all fronts from testing throughdeployment
welcome to mlife.