View
231
Download
4
Category
Preview:
Citation preview
Proprietary & Confidential • 1
Ericsson CDMA450
Tarang Shah
CDMA450 Project Lead
Proprietary & Confidential • 2
CDMA450 Coverage & Capacity
Proprietary & Confidential • 3
Ericsson Presence in NMT 450
Ericsson provided 24 out of 38 NMT 450 Networks in the world!• Unparalleled experience with 450 MHz RF and equipment• Ericsson is operating some of these networks (e.g. Telia)
Proprietary & Confidential • 4
NMT CDMA2000BW 1.25 MHz BW 1.25 MHzChannel 25 kHz Channel 1.25 MHzMax Cap 50 Theoretical per Site Max Cap 61 Theoretical per SectorUsers/Sector 15 4/12 Cell Pattern Users/Sector 34
In a 1x3 Site 45 Users per site In a 1x3 Site 102 Users per site
NMT CDMA450 With TMACoverage Radius (km) 21 24 29
Area (sq km) 1147 1498 2187Improvement 0% 23% 32%
Capacity Erlang Usage 0.025 0.025Sim. Calls 15 34
Sector Erlang 9 25Cell Erlang 27 75Subscribers 1080 3000 3X
CDMA450 Capacity
Proprietary & Confidential • 5
NMT 450 Link Budget
Uplink Link Budget UL Rur IB UL Rur IC UL Rur O Down Link Link Budget DL Rur IB DL Rur IC DL Rur OMS EIRP dBi 30 30 30 BST output power Watt 50 50 50
Body Loss dB -5 -5 -5 BST EIRP dBi 47 47 47Building Penetration Loss dB -10 -6 0 Combiner losses dB -4 -4 -4
Log Normal Shadow Std Dev dB 8 8 8 BTS Antenna Gain dBi 12 12 12Area availabilty % 90% 90% 90% BTS RX Cable + Jumper Loss dB -2 -2 -2
Probability of cell edge coverage % 75% 75% 75% Body Loss dB -5 -5 -5Log Normal fading Margin dB -2.4 -2.4 -2.4 Building Penetration Loss dB -10 -6 0
BTS Antenna Gain dBi 12 12 12 Log Normal Shadow Std Dev dB 8 8 8BTS RX Cable + Jumper Loss dB -2 -2 -2 Area availabilty % 90% 90% 90%
TMA gain dB 3 3 3 Probability of cell edge coverage % 75% 75% 75%Interference & RF margin dB -10 -10 -10 Log Normal Fading Margin dB -2.4 -2.4 -2.4
BTS RX Sensitivity dBm -119 -119 -119 Interference & RF margin dB -10 -10 -10Maximum Allowable Path Loss 134.6 138.6 144.6 MS RX Sensitivity dBm -113 -113 -113
Maximum Allowable Path Loss 142.6 146.6 152.6
Proprietary & Confidential • 6
Parameter Units DU IB U IB Sub IB Sub IC Sub OS R IB R IC R OSMaximum MS PA power Watts 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2Maximum MS PA Transmit power dBm 23.0 23.0 23.0 23.0 23.0 23.0 23.0 23.0Reverse Pilot Overhead dB -1.5 -1.5 -1.5 -1.5 -1.5 -1.5 -1.5 -1.5MS Antenna Gain dBi 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1Subscriber MEIRP per Traffic Channel dBm 23.6 23.6 23.6 23.6 23.6 23.6 23.6 23.6Building Penetration Loss dB -20.0 -18.0 -12.0 -6.0 0.0 -10.0 -6.0 0.0Body Loss dB -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0Area Availability % 96% 96% 94% 94% 94% 90% 90% 90%Probability of cell edge coverage % 90% 90% 85% 85% 85% 75% 75% 75%Slow Fading Std. Deviation dB 10.0 10.0 8.0 8.0 8.0 8.0 8.0 8.0Fade Margin dB -12.8 -12.8 -8.3 -8.3 -8.3 -5.4 -5.4 -5.4Soft-Handoff Gain dB 5.1 5.1 3.9 3.9 3.9 3.7 3.7 3.7RBS Antenna Gain dBi 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0RBS Rx Cable and Connector Loss dB -1.5 -1.5 -1.5 -1.5 -1.5 -2.0 -2.0 -2.0CDMA Traffic Loading Effect* dB -5.2 -5.2 -3.0 -3.0 -3.0 -1.5 -1.5 -1.5RBS Receiver Sensitivity dBm -125.1 -125.1 -125.1 -125.1 -125.1 -125.1 -125.1 -125.1Maximum Allowable Path Loss dB 121.2 123.2 134.8 140.8 146.8 140.4 144.4 150.4*DU and U have a 70% Loading, Su 50% Loading and Ru 30% Loading
DU IB = Dense Urban In-BuildingU IB = Urban In-BuildingSub IC = Suburban In-CarSub OS = Suburban On-Street
R = Rural
Reverse Link Budget 450MHz, Sectorized Site (RC3 Voice)
CDMA450 Reverse Link Budget
Reverse Link Limited for coverage and 6db Improvement over NMT –> 25% more coverage with CDMA450
Proprietary & Confidential • 7
Site DataDirectional 3 sector18dBi 800 MHzAntenna Height 60m
Reverse Link Plot – 800 MHz
Rural In-BuildingRural In-CarRural OutdoorNo Reverse link
Rural In-BuildingRural In-CarRural OutdoorNo Reverse link
Rural In-BuildingRural In-CarRural OutdoorNo Reverse link
Rural In-Building Radius 16.5kmRural In-Car Radius 20km Rural Outdoor Radius 22kmNo Reverse link
Rural In-Building Radius 16.5kmRural In-Car Radius 20km Rural Outdoor Radius 22kmNo Reverse link
CDMA2000 Cell Site Radius
Proprietary & Confidential • 8
Site DataDirectional 3 sectorKathrein 733027 12dBi 450MHzAntenna Height 60m
Reverse Link Plot
Dense Urban In- BuildingRural In- Building
Rural In- CarRural Outdoor
No Reverse l ink
20 km
Dense Urban In -Building Radius 9 .5kmRural In -Building Radius 20km
Rural In -Car Radius 21km Rural Outdoor Radius 24km
No Reverse l ink
Site DataDirectional 3 sectorKathrein 733027 12dBi 450MHzAntenna Height 60m
Reverse Link Plot
Dense Urban In- BuildingRural In- Building
Rural In- CarRural Outdoor
No Reverse l ink
Dense Urban In- BuildingRural In- Building
Rural In- CarRural Outdoor
No Reverse l ink
20 km20 km
Dense Urban In -Building Radius 9 .5kmRural In -Building Radius 20km
Rural In -Car Radius 21km Rural Outdoor Radius 24km
No Reverse l ink
Dense Urban In -Building Radius 9 .5kmRural In -Building Radius 20km
Rural In -Car Radius 21km Rural Outdoor Radius 24km
No Reverse l ink
CDMA450 Cell Site Radius
24 km
Proprietary & Confidential • 9
With TMLNA, 5km Improvement in Radius
Site DataDirectional 3 sectorKathrein 733027 12dBi 450MHzAntenna Height 60mT M A M o u n t e d
Dense Urban In-BuildingRural In-Building
Rural In-CarRural Outdoor
No Reverse l ink
20 km
Dense Urban In -Bui lding Radius 11kmRural In -Bui lding Radius 22km
Rural In -Car Radius 23.5km Rural Outdoor Radius 29km
No Reverse l ink
Reverse Link PlotSite DataDirectional 3 sectorKathrein 733027 12dBi 450MHzAntenna Height 60mT M A M o u n t e d
Dense Urban In-BuildingRural In-Building
Rural In-CarRural Outdoor
No Reverse l ink
Dense Urban In-BuildingRural In-Building
Rural In-CarRural Outdoor
No Reverse l ink
20 km20 km
Dense Urban In -Bui lding Radius 11kmRural In -Bui lding Radius 22km
Rural In -Car Radius 23.5km Rural Outdoor Radius 29km
No Reverse l ink
Dense Urban In -Bui lding Radius 11kmRural In -Bui lding Radius 22km
Rural In -Car Radius 23.5km Rural Outdoor Radius 29km
No Reverse l ink
Reverse Link Plot
Proprietary & Confidential • 10
CDMA450 Business Case
CDMA450 Business Case
Indonesia
Proprietary & Confidential • 11
Two Scenarios
Case A 450 MHzCase B 800 MHz
Model assumptions
• Flat Earth Model• Network Type: Voice Only• ARPU: $15/Month• Terrain: 5% Dense Urban, 10% Urban, 25% Suburban, 60% Rural• Coverage: 7% in year one, 25% in year five• Base subscriber = 75,000 with 35% growth rate
Proprietary & Confidential • 12
Comparing 450 MHz and 800 MHz - Coverage
60% savings in number of Cell Sites with CDMA450!
Coverage Cellsites
050
100150200250300350400450
Year 1 Year 2 Year 3 Year 4 Year 5
450 MHz
800 MHz
Proprietary & Confidential • 13
Comparing 450 MHz and 800 MHz – CAPEX & OPEX
CAPEX
$0.0$2.0$4.0$6.0$8.0
$10.0
Year 1 Year 2 Year 3 Year 4 Year 5
MU
SD 450 MHz
800 MHz
OPEX
$0.0
$5.0
$10.0
$15.0
$20.0
$25.0
$30.0
$35.0
Year 1 Year 2 Year 3 Year 4 Year 5
MU
SD 450 MHz
800 MHz
Proprietary & Confidential • 14
Comparing 450 MHz and 800 MHz – Break-Even
Breakeven up to 40% faster with CDMA450
Break Even Point
-
10
20
30
40
50
60
Scenario75L
Scenario75H
Scenario100L
Scenario100H
Mo
nth
s 450 MHz
800 MHz
Proprietary & Confidential • 15
CDMA450 RF Evolution
Proprietary & Confidential • 16
CDMA450 Technology
• CDMA450 is 3G Technology– Based on CDMA2000 1X (IS-2000)– Supports EVDO and EVDV for high speed data– Excellent coverage and capacity performance among digital wireless
technologies
Proprietary & Confidential • 17
Evolution Designed to Support VoIP & Enhanced PTT
• Physical layer improved for QoS-sensitive services and higher spectral efficiency
• Media Access Control (MAC) layer improved for rapid connection setup and improved support for delay sensitive applications
• Reverse link operates at higher capacity (~2x )
Data plus VoIPData onlyVoice + DataVoice support
300 - 600 Kbps
600 - 1200 Kbps
3.1 Mbps FL1.8 Mbps RL
TDM FLCDM RL
DO rev A
150 - 350 Kbps
600 - 1200 Kbps
2.5 Mbps FL153.6 Kbps RL
TDM FLCDM RL
1xEV-DO
150 - 350 Kbps
Average sector FL throughput
150 - 350 Kbps
Average sector RL throughput
163.2 Kbps (0)307.2 Kbps (A)
Peak data rate
CDMMultiplexing of users
1X
Proprietary & Confidential • 18
1xEV-DO Rev. A – Enablers for VoIP
• QOS improvements
• Multi-User packet for Forward link
• Short packets for forward link
• Improved virtual handoff
• Improved reverse link budget and capacity
• Reverse link latency improvements
Proprietary & Confidential • 19
Voice payload Latency – Push to Talk
Proprietary & Confidential • 20
Qualcomm EVDO Chipset Schedule
Proprietary & Confidential • 21
CDMA450 Network Evolution
Creating Efficient Solutions
Proprietary & Confidential • 22
Ericsson Layered Network Architecture
ControlLayer
MSCServer GMSC/Transit/
TelephonyServer
CSCF
HSSMGCF
HLR
CSS
AAA
ServiceLayer
ApplicationServers
ApplicationServers OSA - Service Capability
ServersAXE
TSP
CPP
MGW-MRFP
GGSN
WCDMA GSM/EDGE
PSTN/PLMN/ISDN
InternetIntranet
Packet Backbone
MGW-MRFP
PDSN/HA
WLAN
WSN
SGWSS7/C7
CDMA450®
PDSN/HA SGSN
ConnectivityLayer
CDMA450® is a registered trademark of the Telecommunications Industry Association (TIA-USA)
Platforms
Proprietary & Confidential • 23
CS domain, ANSI-41
PS-domain
Core Network
Management Systems
MSCserver
GGSN
PSTNMGW MGW
Common IPMultimedia Domain
MGW
MGCF SGWCSCF
MRF
Connectivity Network
SGSN
InternetIntranets
HAPDSN
MSCserver GMSC
server
Service Layer
Apps
Serviceenablers
IP infra-structure
AAA
Charging
HSS/CSS
Complete Network View – CDMA 450 and WCDMA
CS domain, MAP
o===
IOS
IP
IP
ISUP
IP
Iu
Iu
Radio AccessNetwork
CDMA450
RBS BSC
A3, A7
WCDMA
BTS RAN
A1, A2, A5
A10, A11
Proprietary & Confidential • 24
Ericsson’s Main 3G Platforms –CDMA450& WCDMA
AXE Platform (AXE) for switching, service control
– Control, connectivity planes
Connectivity Packet Platform (CPP) for payload transport
– Connectivity planes
MSC
MSC Server
Telecom Server Platform (TSP)for service applications
– Control plane
MRFP
PDSN MGW/SGW
HA
BSC RBS
CSCF
MRFC AAA
HLR
MGCF CSS
Proprietary & Confidential • 25
Ericsson RBS 1130 for Wireless Broadband
• High Capacity– Up to 3x3 DO carriers
• Flexible MCPA Technology– Power level can be adjusted based on network needs– Offers from 20W up to 55W power output in a single carrier
• TMA for improved reverse link performance• Compact Form
– Small footprint: 0.27 m2
• Convenient Serviceability– Easily accessible from front and top
• Smooth migration– Can support DO and DV with channel card change
• Low Interference Band Class 11 support• Innovative design to support all subband classes
Proprietary & Confidential • 26
To/from BSC(traffic & O&M access)
External alarms
SCB CAM
BBDB
ET
MP
SCB
TRX
AIU
EACU
MCPA
TU
CU or PSU/PCUMains Power
Baseband subrack
RF subrack
MCPA subrack
RBS cabinet
Power subrackAntenna
GPS
MCPA
RETRET
ASCASC
WCDMA RBS CDMA450 RBS
•Green - Shared Resources•Yellow - Air Interface Specific•Blue - Standard HW Provisioned per Air Interface Type
To/from RNC(traffic & O&M access)
External alarms
SCB TX
RX
BBIF
ET
GPB
SCB RFIF
TRX
AIU
EACU
TU
CUMains Power
Baseband subrack
RF subrack
MCPA subrack
RBS cabinet
Power subrackAntenna
ASC
RET
MCPA MCPA
Proprietary & Confidential • 27
Current BSC1120 vs RNC 3810 architecture
RBS
RNC
MSC
SGSN
GPB
ETB
TUB
SCB
SXB
Main Subrack
ATM Switch
SPB
GPB
ETB
SCB
Extension Subrack 1
ATM Switch
SPB
GPB
ETB
SCB
Extension Subrack n
ATM Switch
SPB
RBS
RBS
RBS
RBS
RBS
RBS
RANOS
Thin client
PDSN
BSC
GPB
ETB
GPSTUB
SCB
SXB
Main Subrack
ATM Switch
SPB
GPB
ETB
SCB
Extension Subrack 1
ATM Switch
SPB
GPB
ETB
SCB
Extension Subrack n
ATM Switch
SPB
RBS
RBS
RBS
RBS
RBS
RBS
Thin client
RNM
MSB
MSB
MSC
CDMA450 BSC1120 WCDMA RNC 3810
Proprietary & Confidential • 28
BSC 1120 vs. RNC 3810 Architecture after All-IP migration
• BSC 1120 without MSBs is from a HW and architectural perspective the same as RNC
• The following board types are common to both the BSC 1120 & the RNC 3810 (All-IP Scenario)
SCB SXB GPB ET-MxSPB
Common CPP Hardware
BSC 1120 RNC 3810
DifferencesGPS-TUB TUB
Proprietary & Confidential • 29
CDMA450 and WCDMA Management Architecture
ElementManagement
Sub-NetworkManagement
NetworkManagement
O&MComponents
NMS (Fault, Performance and Trouble Management)
Integration Reference Points (IRPs)
Radio Access SNM Core Network SNM SNOS
TCP/IP/SNMPCORBA/FTP/XML
CDMA450 Packet Core
Network
PDSN/ HAPDSN/
HA
AAAAAA
IP MultiMediaNetwork
SGW
SCM
MRFMGW
MGCF
HLR/AC
ServiceNetwork
MPS
WAPPPCS
IWF
eSMS-C
HSS
UM/VMSHSS
CDMA450 Circuit-Switched Network
MSCMSC
MSCMSC
MSCServerMSC
ServerMSCServerMSC
Server
BSC
CDMA450/WCDMA RadioAccess Network
RBSRBSRBSRBSRBS
GGSNGGSN
WCDMA Packet Network
SGSNSGSN
RNC
Proprietary & Confidential • 30
Conclusions
• CDMA450 offers improvements in coverage and capacity over NMT 450– 3 times voice capacity– 25% more coverage– Data capabilities
• CDMA450 offers better economics over CDMA2000 1x @ 800 MHz– 40% faster break-even
• CDMA450 RF Evolution is Excellent– Faster Uplinks– VoIP Capabilities– World-class PTT performance
• CDMA450 Network Evolution– Evolution towards All-IP– Efficient product design approach is key for operator benefits– Creating Synergies with other 3G technologies– Creating common OAMP environment for multi-technology operations– Creating interoperability in service layer (MMS, LBS, PTT)
Recommended