Topics We Will Cover Today

Broadband Wireless Internet from Bell Canada

presented by:

Andrew Tsui, P.Eng., MBA Associate Director – Olympic Services & Broadband Wireless Marketing

IEEE Seminar on WiMAX Wireless Technology University of British Columbia April 28th, 2006

Topics We Will Cover Today

● Our Service

● Background

● Technology Overview

● Issues We Face

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1 Topics We Will Cover Today

● Our Service

● Background

● Technology Overview

● Issues We Face

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Internet You Can Take With You.

Imagine…

● Internet access wherever you need it

● a personal high speed Internet connection

● affordable and predictable cost

● speed and reliability … all powered by Canada’s largest ISP

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2 Sympatico™ High Speed Unplugged

● Personal Internet access with ADSL-like speeds

● Portable, plug’n’play solution for any Ethernet- enabled device

● DHCP for easy configuration, no software needed

● Service available to over 5 million households and 40% of the population across Canada

● Secure wireless traffic over licensed 2.5GHz spectrum

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Western Canada coverage in 2006

AlbertaAlberta CalgaryCalgary EdmontonEdmonton RedRed DeerDeer BritishBritish ColumbiaColumbia AbbotsfordAbbotsford VancouverVancouver VictoriaVictoria

coming soon: Lethbridge, Chilliwack, Kamloops, Kelowna, Nanaimo

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3 Easily Roam Across Canada

Coverage also available in major centres such as:

Barrie, Hamilton, Kitchener, London, Ottawa-Hull, Toronto, Windsor ONTARIO coming soon: Brantford, Guelph, Kingston, Oshawa, Peterborough, Sarnia, St. Catherines-Niagara, Greater Sudbury, Thunder Bay

Montreal, Quebec City QUEBEC coming soon: Granby, Magog, Saint-Hyacinthe, Salaberry-de-Valleyfield, Sherbrooke, Chicoutimi-Jonquiere, Drummondville, Joliette, Trois-Rivieres

NOVA SCOTIA Halifax

Fredericton NEW BRUNSWICK coming soon: Moncton

NEWFOUNDLAND St. John’s

PRINCE EDWARD ISLAND Charlottetown

YUKON Whitehorse

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Simple and Portable

$45/mo $60/mo

Downlink up to 512 kbps 3 Mbps

Uplink up to 128 kbps 384 kbps

Usage included 4 GB 60 GB

$250 Modem cost ($99 with a 24-mo contract)

available today at highspeedunplugged.sympatico.ca

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4 Topics We Will Cover Today

● Our Service

● Background

● Technology Overview

● Issues We Face

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Who is Bell Canada?

Bell Canada is a 126-year old company, and is a fully-owned subsidiary of BCE (Bell Canada Enterprises). BCE is Canada's largest communications company (US$17B in revenues). It is publicly traded in TSX, NYSE and SWX (ticker symbol: BCE). Websites: www.bce.ca and www.bell.ca KEY BELL CANADA PRODUCT BRANDS

¾Bell provides advanced telecommunications services to consumers, 12.6M telephone lines small and medium-size businesses and large enterprises.

¾ Bell Mobility provides innovative wireless communications solutions: PCS and cellular, Web browsing and data, two-way 5.8M wireless subscribers messaging, paging, and airline passenger communications services.

¾ Bell ExpressVu provides the highest quality and most comprehensive Direct-to-Home (DTH) services across the country with 1.7M video subscribers over 300 digital channels and a full gamut of interactive TV services.

¾ Sympatico is Canada’s most popular web portal and ISP. It provides an integrated collection of local, national and global Internet content, as well as various Internet-based products and services for 2.2M Internet subscribers the consumer and small-office/home office market in Canada.

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5 The Wireless Landscape

Wide Area Cellular Network • Road Warrior •Large public coverage •Urban Youth •Always-on, short bursts of data Wireless Wide Area Network •Metro-area ntwks • Business Traveler •Usage charges •Last-mile wireline replacement •Residential/SMB •LAN extension Internet •Enable portable applications •fixed affordable costs Mobility

Wireless Local Area Network Vehicle • Office Worker 2G Cellular •HS, short range, wireless LAN 802.16e •Hotspots for HS “data sipping” •Home •Med-Low cost • Mobile Worker Walk 802.16d •Emerging business models •Campus 1xRTT/ Outdoor

EV-DO 802.11a/g/n Stationary Bell Hotspots HiperLAN2 3G Cellular 802.11b Wireless Personal Area Walk Network (WPAN) •Personal or location specific Bell WLAN •Cable replacement Indoor Stationary/ Bluetooth •Low cost Desktop 0.1 110100Mbps

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Inukshuk Joint Venture

- In September 2005, Bell announced a 50/50 partnership with Rogers Communications to build and manage a Canada-wide broadband wireless network through the Inukshuk Wireless JV ● Pooling of spectrum holdings in the 2.3, 2.5 and 3.5GHz bands

● Leveraging existing cellular sites/towers in order to accelerate the network build - Initial deployment comprises 600+ cell sites (in 20 markets) using NextNet Wireless’ Expedience system (pre-WiMAX) operating in the 2.5 GHz band (MCS)

● Target operation in over 45 cities, and 100 unserved and remote communities in the next 3 years

● Service offer of Best Effort Internet access as an alternative to DSL and cable - License restricted to fixed & portable services only - Plans for a roaming agreement with Clearwire Corporation that will allow customers broadband access in the US.

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6 History of Inukshuk

Aug 1999: - Inukshuk Internet Inc. formed as a partnership between Microcell and Look Communications.

Mar 2000: - Inukshuk wins 12 regional Multipoint Communications System (MCS) licenses to build and operate in all Canadian provinces and territories except Manitoba and Saskatchewan. Jan 2001: - Inukshuk becomes a wholly-owned subsidiary of Microcell.

Dec 2001: - Inukshuk granted ten-year licenses with specific performance milestones and criteria. - Inukshuk announced its intent to build a BWA network to support a broad range of data applications, including wireless high-speed Internet, Voice over Internet Protocol services, as well as home and office networking. Nov 2003: - Allstream Inc., Inukshuk and NR Communications, LLC announced the creation of a new venture with the aim of using MCS wireless technology to offer integrated high-speed Internet, IP-based voice and local networking services to selected markets in Canada. Each partner took a one-third ownership stake. Feb 2004: - Inukshuk partners Nunanet and SSI Micro launches wireless Internet service in Yellowknife and Nunavut.

Mar 2004: - Inukshuk JV launched its first MCS networks in Richmond, BC, and in Cumberland, ON.

Nov 2004: - Rogers Wireless Inc. completes acquisition of Microcell, giving it Microcell’s share of the JV.

Feb 2005: - Allstream pulls out of JV, leaving Rogers and NR Communications as the only remaining partners.

Sep 2005: - Bell takes over NR Communications’ portion of the JV, giving Bell and Rogers equal ownership in the Inukshuk Wireless Partnership joint venture.

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Why Bell and Inukshuk?

● enhanced Internet access service footprint across Canada

● wireless network that complements our Mobility network

● maximizes our investment in broadband wireless technology

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7 Topics We Will Cover Today

● Our Service

● Background

● Technology Overview

● Issues We Face

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Partner In Technology

● Bell is working with NextNet Wireless ¾eight years of development experience in broadband wireless technologies ¾member of WiMAX Forum since January 2004 ¾world leader in broadband wireless deployments

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8 Key Features

● Pre-WiMAX, NextNet-proprietary system ● Non-Line-of-Sight OFDM radio transmission ● Time Division Duplex (TDD) transmission protocol ● Adaptive Modulation, Direct Burst Detection ● Multi-cell network architecture ● Multiple cell-sector configurations possible ● Layer 2 network interface ● IEEE 802.1q (VLAN) support ● Standards based Network Management

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Network Overview

Inukshuk Network ISP Network

NextNet Access ISP Application Servers Server (DHCP, DNS, Radius, Mail etc)

AggregationAggregation ISP Computer NetworkNetwork Provisioning Server Indoor CPE ISPISP Network Network

ISP Router Provisioning Server Access •Assigns service BTS Server attributes •Directs ISP Network CPE Network Access Provider configuration •Connects ISP to all •Functions as an Network ISP Application requests to Network Access Ethernet bridge •L2 switched network Servers BTS BTS correct ISP Provider POPs •Provide DHCP, •Mounted at Tower •Provides Radius, Mail etc as locations (2-4 per cell connectivity to all ISP required by services site) Services (Internet, VPN Services, VoIP Services etc)

Access Network Regional Hub ISP Connectivity ISP Services

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9 Design Parameters & Requirements

Current Design Downlink: 3 Mbps (Peak) Service Bandwidth Uplink: 640 kbps (Peak) Uplink and downlink data Current: asymmetrical (75% DL and 25% UL) symmetry (TDD system) In 4-5 years: symmetrical-like, close to ~50% DL and ~50% UL

Cell Radius (using Indoor CPE) Urban Core: 0.5 m Suburban: 1.5 Km Rural: 2.2 Km

Frequency 2.5GHz Channel Bandwidth 6MHz per channel x 16 channels # of sectors per site 3-4 Oversubscription 20:1 BTS backhaul 3 ~ 5Mbps VLANs 9 per BTS for ISP management/data and control

Regional hubs 10

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Devices

CPE – Customer BTS – Base Premise Transceiver Equipment Station

Integrated indoor wireless modem/transceiver unit Integrated Indoor or Outdoor mounted Plug and play self-install Self contained No software to install 2 watts max output; Channel bandwidth 6 MHz; Receiver PCMIA card is the next form factor for CPE sensitivity -96 dBm. Always-on, IP over Ethernet connection 48 volts – 3.0 amps per BTS Single or multi-computer networking environments RF connector Type N Female Requires GPS for timing 2,5 GHz frequency band Downlink configurable up to 3 Mbps Uplink configurable up to 640 kbps

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10 Provisioning Server

Maintains subscriber unit database

● Service Level Agreement (SLA)

● Area of Operation (AO)

● IP Address (Dynamic, Fixed, Static, PPPoE)

● VLAN assignment

● VoIP profile CPE management Over the air upgrade tool XML interface to Customer Care application

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Network Management

• Works with all industry standard network management applications • SNMP and Web based ¾ Base Station Management • Configuration • Access Management • Event Reporting • Statistics ¾ Interface Management • Airlink ¾ Subscriber Unit management • Configuration • Airlink quality • Statistics • Syslog, Telnet, FTP • Base Station Central Configuration utility

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11 Topics We Will Cover Today

● Our Service

● Background

● Technology Overview

● Issues We Face

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Meeting the needs of all end-users

● Current network infrastructure designed for ‘personal’ or residential broadband Internet access ¾ base-station oversubscription ratios based on consumer market ● Large and midsized enterprises as well as public services seek wireless private network capabilities ¾ dedicated bandwidth, point to point and/or wide-area coverage

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12 Delivering the service

● In-building penetration still highly variable ¾ signal strength dependent on building envelope design ¾ elevation also affects reception ● Service assurance processes still evolving ¾ air-link depends on modem orientation ¾ user diagnostics at CPE end of link are limited ¾ quality of service

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Balancing technology and market needs

● Constant evolution of wireless standards ¾ 802.16 vs. 802.11 Mesh vs. WCDMA (HSDPA) vs. . . . . ¾ current deployment is proprietary pre-WiMAX ● New applications drive demand for broadband ¾ streaming video, portable thin clients, live CRM, etc. ● Overlap with mobile services and applications ¾ current technology does not perform hand-offs between BTS ¾ license restricts us to fixed & portable services only

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13 In closing…

Bell-University Labs

● enabling innovation across Canada

http://www.bce.ca/en/community/innovation/universityresearch/

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Fixed Wireless Channel Dynamics

Existing WiMAX/IEEE 802.16 channel models do not effectively capture the dynamics of fixed wireless channels

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14 Bell, UBC, and WiMAX

A better understanding of fixed wireless channel dynamics will lead to more effective radio resource management schemes.

Bell-University Labs is lead sponsor of a major research effort in this area by UBC’s Radio Science Lab.

Bell contributions include both direct funding and in- kind contributions, including access to data from a live network and access to Bell sites.

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Thank You

highspeedunplugged.sympatico.ca