1. Wireless Data Technologies
MM Clements

2. Last Week WiMAX has LOS and NLOS Backhaul will be p-to-p and LOS
NLOS suffers from flutter but can be solved with smart base stations
WiMAX may replace last mile to subscribers
May not eclipse x for some time
Customers may get up to 15 Mbps from access points,
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3. This week………. Telabria Case Study
Steps needed to deploy a WiMAX network
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4. Telabria Local company Providing wireless backhaul in Kent
2nd year of trading
Working with local government
Using 5.8 GHz for local access
Neither LOS nor NLOS – gives good multipath propagation
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5. Offered Products Home 1.5 & 3 Mbps down, 512 kbps up
Commercial offerings 5 and 10 Mbps
VoIP offered too
Free WiFI hotspot access for customers
Other benefits – see text for lecture
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6. Network Infrastructure
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7. Two Tiered Network Backhaul – LOS microwave High power - licensed
Local Service – 5.8 GHz
5.8 GHz is unlicensed
Others may use this frequency
Low power only allowed
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8. State of Network, 2005
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9. State of Network 2007
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10. Network Backhaul Currently expanding
Medway came online 1st quarter 2006
Herne Bay, Dover, Folkestone expected soon
NOC in Sittingbourne
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11. Local Government Partnership
Working with councils
Giving free services
Gaining rooftop access
Essential for WiMAX service
Cuts leasing costs
Over 100 roofs in Chatham
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12. Setting up Network Financial Planning Models – Wholly company owned
Customers must be available
Partnership
City or town owned
Financial opportunities essential for viability
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13. Inventories
The current and proposed fixed connectivity options offered by local providers
Current and future frequencies that are/ will be available
An inventory of assets such as buildings, towers etc. to set up the wireless hardware
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14. Proposed use of Network
Defines BW requirements
Fixed connectivity
VoIP services
Mobile data services
Video surveillance
Etc.
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15. 5 Year Financial Plan Defines customer take-up
Includes costs of setup and maintenance and training etc.
Hidden savings e.g. from surveillance to be factored in
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16. Site Survey Spectral analysis Tower documentation and mapping
LOS test – id in doubt, set up test rig
Power, space requirements, cable runs etc.
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17. Network Design
Summary of objectives, goals, expectations, advantages, challenges, frequencies etc.
Blueprint of required hardware & vendors
Complete costing
Power budget
Site survey results – tower dimensions etc.
Coverage maps
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18. Site Planning and Construction
Site owner must agree to plans
Permission for structure from local authority
Site walk to view actual site
Spectrum licence from Ofcom
Staging – buying and setting up hardware
Installation of switches, cabling
Rigging – set up of dish
Testing
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19. Monitoring of Devices Check devices work
Set up baselines for performance
Threshold traps of 25% set up
Alarms call NOC and key staff if SLA at risk
Network collisions & data loss should be monitored
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20. Device Maintenance Remote reset or configuration may work
Otherwise truck roll required
Firmware updates
Visual inspection every 6 months
Staff should be able to log in serially or by Ethernet
Plans for access 24/7 must be available
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21. Conclusion Telabria are expanding rapidly – taken over late 2006
Each new area needs to be treated differently
Planning
Site survey
Network Design
Site Planning
Construction
Maintenance
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