Equiping Rural Broadband Networks - OECD
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Equiping Rural Broadband Networks Technology enablers for cost-efficient DSL deployments Peter Linder Technical Director, Wireline, Ericsson Board Member, Ethernet in the First Mile Allliance
Transcript of Equiping Rural Broadband Networks - OECD
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Equiping Rural Broadband NetworksTechnology enablers for cost-efficient DSL deployments
Peter LinderTechnical Director, Wireline, EricssonBoard Member, Ethernet in the First Mile Allliance
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 2
Rural Broadband – Key IssuesOverall Broadband context– Which Strategic issues do all operators face ?– How will a Dual vs. Triple play ambiton affect available options ?– What will the future communication service look like ?
Cost efficient for few subscribers per site– Required improvements in DSLAM scalability– One universal technology for Business & Residential users– Improvements in reach and performance with ADSL2/2plus
Cost efficient transmission to small sites– Available alternatives – deployed today– Alternatives suggested for rural access
Summary and Key take-aways– Characteristics of successful operators– Conclusions
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 3
Strategic Broadband ChallengesRural Broadband part of three main Broadband industry issues
DSL CO Coverage(Site Expanison)
DSL User Uptake (Penetration/site)
BroadbandService Mix
Earlymajority
BigSites
512kBest Effort
PROFITABLE PENETRATION GROWTHDSL Service Affordable for a mass market
Zero Broadband churn among early adoptersIncrease DSLAM utilization rates (low UPUR)
PROFITABLE EXPANSION TO SMALL COsRegulatory environment for rural Broadband
Entry cost for first broadband lineCost efficient Transmission
NEW BROADBAND SERVICE MIX Differentiated Internet Access Offering
A business model beyond a single best effort pipeHigh Penetration to pull new service providers
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 4
Rural Broadband Ambition LevelsDual or Triple play ambition – Define the broadband framework
CPE DSLAMAggregation
SwitchAccessEdge
Best Effort Single Play (Broadband = Internet)Network throughput optimised for Internet Access
No QoS mechanisms introduced
Firts/LastMile
Second/PenultimateMile
Triple IP PlayIPTV added for Residential users
50X throughput increase
Dual IP PlayData & Communication services
QoS introduced – Capacity as above
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 5
Telephony in a Broadband futureEvolution scenario for the Communication Service
ClassicTelephony
PSTN &ISDN
universal
penetration
Past
BasicCommunication
services
Future
ConvergedCommunication
services
EnhancedCommunication
servicesClassicTelephony –
over IP
VoIP
Present
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 6
Cost efficiency for few subs per siteRequired improvements in DSLAM downward scalability
Past
~ 150 lines(Chassi with 3 linecards)
Present
12 lines(Micro configuration)
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 7
Cost efficiency for few subs per siteA universal DSL Technology for Residential and SMB users
Residential ADSL
Business SHDSL
High SpeedVDSL1
Long Reach IDSL
8Mbps/1Mbps
2Mbps/2Mbps
13-26Mbps/13-26Mbps
144kbps/144kbps
ConfigurableTriple-Annex ADSL2/2plus
24Mbps Down (A)3Mbps Up (M)
Increased reach (L)4-to-1
Rationalization
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 8
ADSL2+
ADSL2+Upto 24Mbps downstream capcity
Upto 3Mbps upstream capacitySweet spot in 0-2km serving areaConfigurable for multiple annexes
Cost efficiency for few subs per siteVisualization of Triple-Annex ADSL2/2plus speed and reach
Length, Km
ADSL2
ADSL2Upto 12Mbps downstream capacity
Upto 3Mbps upstream capacity~500kbps added capacity vs. ADSL
500m-1km increase in reach
1 Km 2 Km 3 Km 4 Km 5 Km 6 Km
8
12
ADSL
24
Data Rate, Mbps
7 Km
ADSL
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 9
Ethernet overC-WDM
SwitchedEthernet
FE/GEFE/GE EthernetBRAS
EthernetSwitch
EthernetSwitch
EthernetSwitch
EthernetSwitch
EthernetSwitch
FE/GEFE/GE
BRASEthernetSwitch
CWDM
TargetSolution
(Triple play)
Ethernet overNextGen SDH
Ethernet to ATM
SDHFEFE
BRASEthernetSwitch
NG SDH
Ethernet overMINI-LINK
FEFE
Ethernet overSDH/PDH
FEFE SDH / PDH
EthernetSwitch BRAS
BRASEthernetSwitch
FE/GEATM
BRASEthernetSwitch
STM1/4
MigrationSolutions
(Dual Play)
Cost efficient transmissionOverview of currently deployed alternatives
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 10
Cost efficient transmissionSuggested alternatives for near term site expansion projects
Fast Ethernet
(Fiber for COInterconnect)
FE/GE
EthernetBRASEthernet
Switch
EthernetSwitch
EthernetSwitch
EthernetSwitch
EthernetSwitch
FE/GE
Ethernet Over MINI-LINK
(Radio)
FEFE
EthernetSwitch
BRAS
Ethernet overTDM network
(PDH / SDH)
SDH / PDH
BRASEthernetSwitch
FEFE
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 11
Summary and Key take-awaysCharacteristics of successful rural deployments
PC experience is an essential enabler – TV as device might be required Successful Operators do often have a strong regional/local anchoringSmall COs are likely not a short-term targeted for national playersBusiness access vital driver – End-user need exist & is key to ROIFiber in the 2nd Mile priortized over fiber in the 1st MileLocal/Regional networks are potential Partners/Acquisition candidates for
PTTs/SPs – strive for architectrual alignment across a given marketAdoption of Ethernet centric architectures to enable low Operational costs
SDH / PDH
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2004-11-02Equipping Rural Broadband – OCED, Porto October 25 12
Summary & Key Take-awaysMajor hurdles for rural DSL has been addressed
Cost efficient for few subscribers per site– Required improvements in DSLAM scalability– One universal technology for Business & Residential users– Improvements in reach and performance with ADSL2/2plus
Cost efficient transmission to small sites– Available alternatives – deployed today– SDH/PDH, Radio & Fast Etherent suggested for rural nodes
Access to end-users beyond reach of DSL– Radio Access (3G, HDSPA, WiMax)– Extension of second mile beyond existing CO sites
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