wireless dsl for rural india

7/29/2019 Wireless DSL for Rural India

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Rene Abraham

Midas Communication Technologies

[email protected]

WWRF #19 2007 Chennai, India

Wireless DSL for Rural India

Challenges and Requirements


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Page 2WWRF#19 Rene Abraham 2007, Chennai

Outline

Background data

Challenges

Requirements


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Not Wireline

Wireline is not the way to go

Only a fraction of deployed

copper can support DSL

Rural teledensity is too low

for required ramp


4/22Page 4WWRF#19 Rene Abraham 2007, Chennai

7M cellular subscribers/month, but

Required Coverage

75% of population4900 Towns ~300M people

~350 000 Villages ~450M people

Existing Coverage

~30% of population

1700 Towns ~200M peopleNegligible rural coverage



Revenues: Rentals & Voice

SMS is less than 5%

Not lack of bandwidth or

QoS

- Ease of use issue?

- Relevance issue?

- Cost issue?

($ 7)



Internet? What Internet?

9.22 Million Internet

subscribers

2.4 Million broadband

subscribers

~38 Million more have

cellular Internet access

- Email? RSS?

- Or not used?

Millions

100, 000s



Challenges

Economic

Technical

Regulatory

Social



Targets versus Reality ConstraintsAwareness

Cost

Content,

Applications

Ease of use

- Local language

Other constraints

- Equipment

availability

- Power

- Reliability



Effective Regulation Matters

Spectrum allocation

Interconnection & NIXI efficiency

Leased line cost

Infrastructure sharing

QoS & tariffs



Requirements Wish List

Lowest cost

- Access Edge- Backhaul

- Backend core

- Reuse and inter-work with existing voice and data infrastructure

E.g. Aggregation switches, BRAS, NMS/EMS, Billing

Voice support

- Efficient transit and termination99.999% reliability

NMS

- Vastly improved preventive maintenance functionality


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Requirements Wish ListModular investment scaling

- Access edge POP should be viable at 50 subscribers

Service span should be 10 km

- Up to 2 km: Non- or near line of sight

- 2 to 10 km: Near line of sight or line of sight

256 kbps, 512 kbps and 1Mbps per user, always-on

- With QoS & Time/Volume provisioning, billing

- $ 5 + per month


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Requirements Wish List

Low cost voice & freedata capability

- Voice: Toll quality & Payphone, Fax support

- Data service allocated on demand

Self installable

Retail model

Pre-paid

- Simple recharge mechanism

- Non-trivial problem; cash based to start with

User maintained

- Low power & commodity battery


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Requirements: Infrastructure (NWK Edge)

5K subscribers/access node

Feed distributed POPs

No air conditioning

1.5 2.0 kW power consumption

Small form factor; container-shelter


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Requirements: Infrastructure (POP)

50 subscribers/POP

Feed up to 8 sectors as subscriber base grows

50 to 150 W power consumption


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Requirements: Customer Premise

Cost

- $150 terminal + access device

Ease of use

Reliability

- Thin client model?

Power


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Power Issues

~44% of rural households have access to electricity

Typically 36 hours of autonomous operation required

Solar panel

-


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New Ecosystem Needed

Application Providers

Transmission Providers

Service Providers

&

Regulator


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Start with Shared Access

Shared access

- Kiosks first, individual homes/users second

- Kiosk can also be village access edge operations centre and last

mile bridge


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Share Also

Storage

Peripherals

- Scanners and printers

Applications & Application Servers

Other common infrastructure


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Example: BroadbandcorDECT

Up to 8 Basestations/POP

From 50 to 400 subscribers

Only 100W needed at

remote site

E1 or Ethernet BackhaulE1 or Ethernet Backhaul

Fiber or RadioFiber or Radio

POPPOP

Centrally locatedCentrally located

corVANcorVAN


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zInternet Access Device + feature phone with phone book, CLI, call charge meter,

SMS, alarm, reminder, date, time

zAccess Internet and Intranet applications directly

zChat, E-mail, Information Servicesz Full feature keyboard

z40-character, 4-line display

zHands-free operation option

z Local language user interface option in future

zUltra-thin client architecture

z 3rd party application hosting on backend servers through standard API

Example: Access Port + Access Device

VAS ServerVAS Server


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Thank you

wireless dsl for rural india

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