Tata Communications WiMAX Rollout

7/25/2019 Tata Communications WiMAX Rollout

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2008 Tata Communications Transformation Services, Ltd. All Rights Reserved.

Tata Communications WiMAX Rollout

- Ushering in the

Wireless Broadband Revolut ion


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Agenda

Background

Scale of the project

Services offered

Approach

Challenges

Solution

Benefits

Conclusion


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BackgroundTata Communications focus on 3 As (Access, Affordability, and Applications) helped

develop a wireless access strategy enabling seamless connectivity to enterprise and retail

customers

In a geographically diverse and vast country like India, Tata Communications. envisioned wireless

technologies to facilitate in Providing coverage to areas difficult to connect

Improved range and connectivity in areas partially covered by wired network

By 2005 Tata Communications rolled out Multichannel Multipoint Distribution Service (MMDS)

(precursor to WiMAX) project in 50 cites to provide last mile wireless access.

By early 2007- With new spectrum policy, Tata Communications got license to implement pan IndiaWorldwide Interoperability for Microwave Access (WiMAX)

Provides better coverage in both LOS and Non-LOS conditions

Features like Orthogonal Freq Division Multiplexing, Adaptivemodulation etc provide better connectivity and performance

Standardized architecture leading substantially lower cost persubscriber

Line of Sight (LOS) and Near Line ofSight (Near LOS) constraint

Limited capacity without sectorizationand cellularization

WiMAX BenefitsMMDS Limitations


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Scale of the Project

Outdoor, Semi Indoor& Indoor

OutdoorTypes of CPE6

42No. of System Integrators engaged fordeployment

5

Planet EV, MapinfoRF Planning tools used4

Regional**CentralNetwork Management System3

3000+1500+No. of Base Stations240+350+No. of Cities1

RetailEnterpriseDescriptionS. No.

* Regional NMS based on greater number of Retail SS

1212Subscriber Stations

105Base Stations

802.16 e (Mobile)802.16 d (Fixed)Vendors Evaluated


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Services Offered

- WiMAX with ISDN backup - Ethernet Relay Services

- Layer3 VPN Services - Multiple VLAN support

In future

Wireless Broadband Internet

Value Added Content based

Services e.g. Stock updates

Internet Leased Lines

Layer2 MPLS

VPN

Managed VOIP Services

At present

Retail CustomersEnterprise CustomersServices Offered


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Approach

Planning Evaluation Implementation

Proof of Concept (PoC) Field tr ials / Pilot

Requirements Gathering

RFP drafting, issue & response

evaluation

Site Visits & Lab Visits

Technical Evaluation

Preparing Vendor SpecificBusiness Cases

Commercial Negotiations

Overall evaluation (ProductComparison Matrix, Total Cost OfOwnership evaluation)

Order finalization

Technology Planning

Service Planning

RF Planning

Backhaul Planning

Deployment Plan

Site surveys and acquis ition

Site Installation

Site Integration

Backhaul Integration

NMS Integration

Acceptance Test ing

Customer Migration

Handover to Operations


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Approach- An illustrative project plan*

*Indicative for a city ro llout and not as per actual project plan and timelines

Quarter 1

Quarter 2

Quarter 3

Service

Planning

RFPlanning

Backhaul

Planning

Vendor

Selection

Implementation

NMS

OSS/BSS


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Challenges

Regulatory

Issues

Inter

operability

Issues

Planning

Issues

3.3 GHz profile is not a standard WiMAX forum prof ile

Only 12 MHz spectrum released by regulator

Limited equipment vendors in this Frequency band

Site specific AIPs (Agreement in Principle) to deploy the

Base Stations

Import Licenses

Ensuring interoperability compl iance for base stations

and subscriber stations

High equipment cost

Clutter and terrain of Indian cities make RF planning dif ficult

Optimal use of 12 MHz spectrumMigration of existing MMDS customers to WiMAX network

within the same operational spectrum


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Possible Solution- A WiMAX Ecosystem

OEMs

System

Integrators

IT

companies

CarriersChip

Vendors

Trade

forums

Develop, produce, certify, promote and deliver a quality rollout

Provide a platform to all the stakeholders

Deliver unique solutions tailored to suit Indian market

Interoperability between different vendor equipment

Lower the base station and subscriber station cost

Expedite entry of 3.3 GHz profile into WiMAX forum profile list

In the Indian context, creation of a WiMAX ecosystem led to the following benefits-


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Benefits

India Map- Source www.mapsofindia.com

Faster Go To Market- 6 month advantage over

setting up a city wide wireline network.

Easy Scalability- Network expansion in

Covering newer areas

Providing better coverage in existing wired networkareas

Off the Shelf Model-Installation time for

retail customers reduced to 60 mins from

2-3 days.

Robust Carrier Class Network- WIMAX

offers efficient multiple access capability

which provides carrier class network

resulting in lower OPEX.

Higher Quali ty of Service (QoS)-Prioritization of the traffic as per userrequirement

To design better customer centricbroadband plans

Improved services to business customers

New Business and Profit Models- Targeting new set

of customers e.g. ISPs demand WiMAX as a backhaul

option

Better Return On Investment- Compared to other

access technologies like 3G, WiMax offers a profitable

business plan with relatively high levels of revenue,

coupled with a relatively low CapEx and OpEx


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Conclusion

Ushering in theUshering in the

WirelessWireless

Broadband RevolutionBroadband Revolution

S

tructur

edApp

roach

ChallengesTackled

AccessStrategyPo

ssible

Solution

Regulatory

Inter-Operability

Planning

Planning Evaluation Implementation

OEMs

System

Integrators

IT

companies

CarriersChip

Vendors

Trade

forums

Ecosyste

m

Upgrading existing

MMDS network to

superior wireless

alternative WiMAX


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Annexure - Bangalore Pilot

Outdoor Subscriber StationBST antenna 2

BST antenna 1 BST Outdoor Unit


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Architecture Diagram for Bangalore

Aggr egation swit ch

3750

Aggr egation swit ch3750

Micro pop

Carltontowers

Commercial

street

Mega Pop

3750

Gig

i

Tata Comm. MPLS

/Metro E

Network

172.29.x.x

172.29.x.x

172.29.x.x

172.29.x.x

7606

Micro pop

100 pop

. .

7606

Internet

BS for Retail si tes BS for Enterprise sites

Tata Communications WiMAX Rollout

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