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КОНФЕРЕНЦИЯ АСТЕЛ 2010 ДОСТЪП БЕЗ БАРИЕРИ. Панел II Проектиране на широколентовия достъп, добри практики. Игнат Станев Колеж по телекомуникации и пощи. Съдържание :. Проектиране на широколентов достъп Проблем 1 – Service bandwidth upgrade on FTTH broadband access network

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slide1
КОНФЕРЕНЦИЯ АСТЕЛ 2010ДОСТЪП БЕЗ БАРИЕРИ

Панел II

Проектиране на широколентовия достъп, добри практики

Игнат Станев

Колеж по телекомуникации и пощи

slide2
Съдържание :
  • Проектиране на широколентов достъп
  • Проблем 1 – Service bandwidth upgrade
    • on FTTHbroadband access network
    • on xDSL broadband access network
  • Проблем 2 –Selection of broadband access technology
    • xDSL vs. FTTH for urban brownfield area
    • FTTH vs. WiMAX for urban greenfield area
    • xDSL vs. WiMAX for rural area
  • Обучение в КТП по проектиране на широколентов достъп
planning of wireline bb access network
Planning of wireline BB access network
  • Capturing sophisticated market forecasts
  • Selecting the best access technology for a geographic region
  • Designing and dimensioning optimized access networks
  • Providing detailed economic analysis based on forecasts and infrastructure investments
planning of wireless bb access network
Planning of wireless BB access network
  • Interactive microwave link engineering
  • Design of radio access networks
  • Planning wireless broadband networks
  • Frequency allocation and coordination
slide5
Problem 1 – Service bandwidthupgrade

There is a need to model the impact of upgrading the service bandwidth bandwidth, the service take rate and the service mix on the access network.

For a given market, the access network planners want to perform Bandwidth Upgrade Scenarios, Uptake Growth Scenarios, and Service Mix Scenarios

The access network plannershave to dimension the required capacity of the access nodes, to optimize the access network and to calculate related coststo upgradeit.

slide6
Speed and bandwidth statistics related to service upgrade

Offeredbroadband connection – by price and speed

Average advertised vs. actual download speed

Source : OECD, TeleGeography, Point Topic

Source : OECD 2009

slide7
Service bandwidthupgrade – example I

Service:

Service:

Normal :

Upgraded:

Service:

Service:

Service utilization is presented by the Contention Ratio

slide8
Service bandwidthupgrade – example I

<- Normal

FTTH – Home locations

Upgraded:

slide9
Service bandwidthupgrade- exampleI

<- Normal

Bandwidth per service ( Mbit/s )

Bandwidth increase:

Upgraded:

slide10
Service bandwidthupgrade- exampleI

Access Network Dimensioning/ Optimization

<- Normal

(3 OLT, 17 Splitter 1:8, 89 Splitter 1:4)

Upgraded:

(3 OLT, 28 Splitter 1:8, 93 Splitter 1:4)

slide11
Service bandwidthupgrade – example I

Costs :

Costs increase :

(relative to all costs)

slide13
Service bandwidthupgrade – example II

BUS

Service:

Service:

Normal

Upgraded

Upgraded:

Service:

RES

Service:

slide14
Service bandwidthupgrade– example II

<- Normal

CC – Copper Cabinets

Upgraded:

slide15
Service bandwidthupgrade- exampleII

<- Normal

Bandwidth per service ( Mbit/s )

Upgraded:

Bandwidth increase:

slide16
Service bandwidthupgrade- exampleII

<- Normal (3 MSAN)

Access Network Dimensioning/ Optimization

Upgraded: (5 MSAN)

slide17
Service bandwidthupgrade – example II

Costs :

Costs increase :

(relative to all costs)

slide19
Problem2 – Selection of Access Technology

Aim is to investigate the techno-economical impact of various access technologies on the network for a given market

Multiple techno-economical studies are carrier out for the purpose to determine the optimum access technology for the network

Selection is done by comparison of the economical parameters for each access technology

slide20
Broadband access technologies

Application of different broadband technologies

IP

Source : OESD 2008

slide21
Broadband access – market share by technology

Broadband subscriptions inJapan

Broadband subscriptions in France

Source : Japan MIC

Source : ARCEP

slide22
Low subscriber base

*

Y

Wireless

N

Is area Greenfield pocket within Brownfield?

Is there high growth for service demand?

N

N

Y

Y

OLT exists or planned?

Is existing

MSAN

capacity &

BB reach?

* *

Y

N

FTTH

Temp BB wireless / Plan OLT

N

Y

Extend network from MSAN

Planning guidelines for broadband access technology

Sample guidelines

Access Network Planning Roadmap

Access Network Planning Guidelines

Source : STC

slide23
Example I – urban area brownfield

xDSL

xDSL vs. FTTH brownfield

slide25
Example I – urban areabrownfield

xDSL vs. FTTH brownfield

FTTH

xDSL

slide26
Example II – urban areagreenfield

FTTH vs. WiMAX greenfield

FTTH

slide28
Example II – urban areagreenfield

FTTH vs. WiMAX greenfield

WiMAX

FTTH

slide29
Example III (a) – rural area

xDSL vs. WiMAX rural area

xDSL

slide31
Example III (a)– rural area

xDSL vs. WiMAX rural area

slide32
Example III (b)– rural area

xDSL vs. WiMAX rural area

xDSL

slide34
Example III (b)– rural area

xDSL vs. WiMAX rural area

slide35
Обучение в КТП по проектиране на широколентов достъп
  • Учебни дисциплини (лекции) – ТКМ с раздели “NGN архитектура и услуги”,“Моделиране на мрежи” и “Планиране на мрежи”
  • Учебни дисциплини (сем. упражнения и практики)– ТКМ и Спец. Софтуер, където се демонстрират и прилагат инструменти за планиране на широколентов достъп
  • Лаборатория “ТКМ” с 4 мощниработни станции с големи ектани, с инстталиран лицензиран софтуер “VPIaccessMaker” за планиране на широколентов достъп
  • Дипломни работи в областта на NGN и планиране на широколентов достъп– 5(2009); 6(2010)
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