Building an Enterprise Infrastructure for Global Wireless Mobility

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Building an Enterprise Infrastructure for Global
Wireless Mobility

• Keith Nelson
• The University of Texas at Austin

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Campus Communication Trends

• Residence hall POTS
• Laptop
• Cell phone

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In-Stat Businesses spend more on wireless voice
services than on wireline in 2006
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Mobility Is Applications

• Web apps
• Laptops
• More mobile web sites for small devices
• Other mobile apps, some of Windows Live, Rave
  Wireless, etc.
• Communications
• Voice
• Email
• Text
• Social networking
• Location based services

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Mobility Is Infrastructure

• Wired broadband such as cable, DSL, powerline
  when used with web apps
• Wireless technologies
• Wi-Fi
• Wi-Max
• 3G/4G
• Cellular
• Satellite

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The Difference Between Coverage Capacity

• Coverage is signal strength/number of bars
• Capacity is number of simultaneous end users any
  network can support

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Complimentary Wireless Technologies
Wi-Fi/ Bluetooth
UT Wi-Fi
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What areDistributed Antenna Systems?

• Antenna systems with remote power amplifiers
  (uplink and downlink), placed at locations which
  require new or improved coverage and are
  connected to a remotely located Base Station or
  Base Station Host site by means of fiber optic
  cable, free space optics or microwave radio.
• This presentation focuses on using fiber optic
  cable for DAS networking because it is a readily
  available resource on University and College
  campuses.

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Advantages of DAS

• Visually unobtrusive hardware, no major
  construction
• Supports all wireless services/operators
• Option to and/or complements traditional cell
  sites
• Can be designed for optimal wireless coverage -
  including capacity and in-building
• Base station equipment can be kept out of sight
• Lower radiation levels than macrocell towers
• Supports all applications, frequencies and
  protocals

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Coverage and Capacity Challenges
Why Microcells?
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Why Microcells?
Downloading a map to a passing car
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Alternative to a macro site
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Visually unobtrusive
Antennas
Base station/hotel
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Capacity Coverage
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DAS Project

• Vendor selection
• RFP contract
• Plan design
• Carrier participation
• Construction

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DAS RFP

• Texas AM and UT Austin submitted jointly
• Extensible to other Texas higher education
  institutions
• Selection criteria
• Cost to provide infrastructure (fiber, power,
  space), value of services
• Proposers reputation and past relationship with
  the Universities

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Selection Criteria (cont.)

• Quality of proposed technology, future
  capabilities, coverage (outdoors/indoors)
• Proven ability to meet University's needs (e.g.,
  recruiting carrier participation)
• Ability to comply with laws/rules (e.g., HUBs)
• Feasibility to add supplemental in-building
  coverage, future wireless technologies
• Projected long-term value of services including
  revenues from site leases.

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Plan Design

• Preliminary node and base station location plan
• Nodes
• Continuous wave (CW) drive testing
• In-building testing
• Base station
• 200 sq ft per carrier plus 200 for DAS equipment
• Power, HVAC, service access
• Fiber usually 1 or 2 per carrier
• 10 mile max - base station to node

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Carrier Participation

• Existing macro networks including existing campus
  site leases
• Carrier funding time frames
• Site acquisition companies new partners
• Money CapEx and OpEx
• Priorities carriers, enterprise, and DAS
  operators
• Trust

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University Coverage Priorities

• Major event locations  DKR (80,000 capacity) and
  Erwin Center (25,000 capacity)
• Residence halls 7,000 customers - HFS is
  planning to eliminate wired phone service and
  will need good indoor coverage
• Programs considering major mobility initiatives
   e.g., Business, Law, and Athletics are
  considering requirements for smart phones for
  students
• Main building  the central administration
  building for campus and houses the President's,
  some VPs, and brings in many VIPs.

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Current Status

• Design and CW testing 95 complete
• Base station locations identified
• Carrier negotiations well advanced
• Needed contingency for football
• Nine months to complete construction

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What is Fixed Mobile Convergence (FMC)?

• A wide range of technologies and services that
  integrate elements of fixed communications
  infrastructure to complement mobile services
  (http//www.fixed-mobileconvergence.com/)
• A vast array of different types of technology to
  perform very similar tasks (Wikopedia)

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FMC Business Models

• Operator Model - existing telecom providers use
  convergence to complement their existing mobile
  or fixed offering
• Mobile Virtual Network Operator (MVNO) an
  organization that provides a wireless/cellular)
  service but does not have an allocation of
  spectrum or unlicensed wireless infrastructure
• Enterprise Model potential to aggregate their
  business cellular minutes, based on
  enterprise-controlled and/or use-controlled
  business rules

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Issues

• Management of enterprise resources
• Different networks, different coverage and
  capacities
• Dual mode devices
• Ownership of the SIM or R-UIM
• Identity convergence (phone number, e-mail
  address, username and password )
• One user / different uses
• Federated identity management

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Desirable FMC Traits

• Device, PBX, and carrier agnostic
• Enterprise can aggregate and manage mobility
  costs (e.g., cellular use)
• Handoff between enterprise and carrier
  environments
• Unified/simplified services to users (e.g., 1
  voice mail, 1 cell phone, enterprise-specific
  features)

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Questions?

• Contact
• Keith Nelson
• The University of Texas at Austin
• knelson_at_austin.utexas.edu
• Thank you!

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