Fixed Wireless Backhaul
Applications & Solutions
John Seaman - VP of Sales
Trango Systems, Inc.
Complete Solutions
Corporate Overview
 Leading manufacturer of wireless IP backhaul solutions
 Focusing on point-to-point microwave backhaul
 Based in San Diego, California
 Delivering wireless solutions since 1996
World Class Engineering & Manufacturing
Poway, California Facility
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Experienced engineeering & manufacturing teams
Long history of producing RF and IP equipment
Strong and close partnership with Broadcom
Close working relationship with customers
ISO9001 Certification
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30,000 square foot manufacturing facility
State-of-the-art, fully automated SMT lines
Fully Automated Optical Inspection (AOI) capability
Comprehensive system and subsystem testing
over temperature
Agenda
 PTP & Backhaul Applications
 Frequency Planning and Licensing
 Case Studies & Success Stories
Backhaul Evolution
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Backhaul: Once the “after thought” of the wireless infrastructure
Explosive growth in recent years
4G & LTE are pushing the limits of existing networks
Today’s MW solutions are more powerful and cost effective than ever
Gigabit & Beyond now possible
Wireless Backhaul is essential to today’s network!
Wireless Backhaul Markets & Applications
 Mobile Infrastructure - Carrier Networks - 4G/LTE
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Enterprise IT Networks
Service Providers - Fixed Wireless - ISPs - WISPs
Healthcare and Education - Campus Networks
Federal, State and Local Government Agencies - Public Safety
Industrial Wireless Networks - Energy - Utility Telecommunications
Transportation Networks - Shipping - Passenger and Freight
Security - Video Surveillance
Broadcast - Radio - TV - Studio Transmissions
PTP Applications
Licensed bands vs. Unlicensed bands
Licensed
Advantages
• No risk of interference
• Higher capacity
• FDD
• Lower Latency (<1mS)
• Product Reliability
• Network Reliability
Disadvantages
• Licensing fee
• Time waiting for license
• Typically more expensive
Unlicensed
Advantages
• No license required
• Quicker deployment
• Typically lower cost
Disadvantages
• High risk of interference
• Typically lower bandwidth
• Typically FDD
• High latency
• Interference causes poor
reliability
FCC Licensed Band Frequencies
Channel / Antenna Size Options
Band
Antenna
Minimum Size
Channel Sizes
Maximum Throughput
Minimum
Throughput 99.95%
6 GHz
3 ft.
10, 30, 60 MHz
486 – 761* Mbps
44 Mbps (64 QAM)
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6
5, 8.33, 12.5, 25
203 – 320*
22 (64 QAM)
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2
10, 20, 30, 40, 80
486 – 761*
44 (64 or 16 QAM)
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3
5, 8.33, 12.5, 25, 50
401 – 632*
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1
10, 20, 30, 40, 50, 80
486 – 761*
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8”
10, 20, 30, 40, 50
401 – 632*
Conditional certification: User may be required to change out antenna if it causes interference.
Smaller antennas may be allowed in coordination.
*Higher throughput figure represents max throughput for small packets due to header compression
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Network Design Considerations/Options
Ring Backhaul
Hub/Spoke Backhaul
Multi Ring / Mesh Backhaul
Linear / Daisy Chain Backhaul
Mixed Backhaul Network
Spoke
Linear
Ring
Branch
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Redundancy Planning
 Redundant equipment increases overall
uptime and customers perceptions.
 Critical capacity.
 Backhaul links typically major backbones.
Redundancy Methods
 Alternate paths
 Redundant Rings
 2+0 or 1+1 Hot standby
 Unlicensed under-build
 On-hand Spares
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Path Planning Considerations
Trango can Help!
 Pathcheck App
 Path Coordinates
 Rain Region
 Customized Path
Calculations
 Line of Sight
 Terrain Profiles
 Fresnel Zone
 Link Budgets
 Licensing Coordination
 Recommendations on
frequencies, antenna size,
modulation.
 Frequency coordination with
Radyn
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Path Considerations
Millimeterwave
Rain Attenuation
Antenna Sizes,
Types, Alignments
 Path Assessment
Atmospheric
Multipath
 Link Performance Calc.
 Link Availability Calc.
(Rain Fade)
 Frequency Study
Refraction, k-Factor
Path Clearance
Frensel zone
Feeder Losses
 Infrastructure
(Shelter, Power, Security)
 Antenna System
(Structures, Aesthetics)
 Grounding & Safety
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Shelter
Pathloss Terrain Profile
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Rain Regions – North America (Crane Model)
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Adaptive Coding & Modulation (ACM)
 Modulation can upshift or downshift without any loss of traffic – 100% hitless
 Increases link reliability
Sample Pathloss Report
 Location data
 Antenna & Radio data
 Free space loss
 Projected RX level
 Fade margin
 Rain rate & attenuation
 Availability Prediction
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Mobile Application for IP Backhaul
Planning
 GPS mapping with site placement and terrain data
 Max Tx power and antenna size based on selected frequency
band, regulatory region, channel bandwidth and rain region
 ITU rain region, Terrain and Fresnel zone profiles
 Site photographs, Map view of the point-to-point link
 RF link statistics displayed in real time
 Small Packet Capacity (Mbps), Large Packet Capacity (Mbps)
 Max Tx Power (dBm), Expected Rx Level (dBm)
 Rx Sensitivity (dBm), Fade Margin (dBm)
 Link Quality, Link Outage (minutes per year)
 Availability (% yearly)
 Email, print, and import/export of path profiles
 Quote request tool
Frequency Coordination
 Required site information
from Pathloss report,
tower call signs, etc.
 Analysis against existing
and proposed stations
(other microwave,
satellite, TV relay, etc.) to
ensure no interference or
performance impact.
 Confirm performance
matches FCC
requirements.
 Coordination per path.
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FCC Licensing
Form 601
 Double and triple check coordinates, line of site and
Fresnel zone for path obstructions
 If no issues, submit to FCC
 Coordinator notifies other licensees in the area for
comment.
 Approx. 30 days for notice to be reviewed by licensees.
 Pay filing fees to FCC per site.
 $470 for new, $270 modification
 No fee for gov agencies
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Microwave System Form Factors
Split-Mount
All-Outdoor
All-Indoor
Separate Indoor unit (IDU)
and outdoor unit (ODU)
IDU Rack mount in shelter
ODU Direct Mount to
Antenna
IF Cable (coax) from IDU
to ODU
 Modem and Radio self
contained in outdoor unit
Typical connection via
POE or direct fiber up the
tower
No rack space required,
no coax required.
 Modem unit and RFU
Unit all housed indoors
Rack Mount
Waveguide installation
Case Studies
Missoula County Schools
46° 55'
 Microwave network connects over 20 district properties
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5 High schools
Rattlesnake Elem
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2 Middle schools
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10 Elementary schools
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Various business and administration buildings
 100 Mbps FD Connection at all schools
Lowell Elem
Willard Alternativ e Sch
Paxson Elem
 300 Mbps @ main business building
 Engineered for Five nines (99.999%)
50'
 Project Completed Summer 2011
Washington Middle Sch
Jef f erson Fine Arts
Sentinel Tower
Lewis & Clark Elem
Russell Elem
Meadow Hill Elem
KMSO / CCI Tower
Missoula School Project – Design
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22 Microwave links
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18 & 23 GHz Licensed / 20 MHz channel
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One 2+0 Link for business building
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Most links use 2 ft antenna
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Longest link ~6 miles
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Most links direct LOS shot to single tower
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Split architecture links (IDU/ODU)
Plumas County, CA
Public Safety Microwave Network
 Multipurpose Microwave Network – Deployed 2012
 Funded by HLS grant
 Interconnects county facilities and mountain repeater sites
Pure IP Network for convergence of
 LMR (Land Mobile Radio)
 Next Gen 911
 FirstNet
 Ongoing expansion via various grants
 Goal to interconnect 14 northern CA Counties and
FirstNet
Next Generation 911 & FirstNet
NG911
 IP-based system that allows digital
information (e.g., voice, photos, videos,
text messages, telematics) to flow
seamlessly from the public, through the
911 network, and on to emergency
responders.
 FirstNet’s mission is to develop and build first
nationwide broadband network dedicated to
public safety.
 Independent entity operating under
guidance of NTIA.
 Allocated $7 Billion by the FCC to create the
network.
www.firstnet.gov
FirstNet Challenges
Plumas County, CA
Network Design
 Currently 12 Licensed microwave hops
 Various 4.9 GHz spurs
 11 GHz, 6 GHz 1+0, 2+0, 1+1 Configurations
Pure IP Network for convergence of
 LMR (Land Mobile Radio)
 Next Gen 911
 First Net
 Ongoing Expansion via various grants
 Goal to interconnect 14 northern CA Counties
Skywerx Internet Services
Colorado Broadband Service Provider
Serves over 7000 customers
• Other ISPs
• Residential
• Education
• Banking
• Hospitals
• Muni Gov. / 911 Dispatch
Operates extensive redundant licensed
Microwave Backhaul Network
Skywerx
Colorado Redundant Backhaul Network
Designed for reliability,
capacity & redundancy
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2+0 / 4+0
Licensed Bands
6 GHz, 11 GHz, 18 GHz
24 GHz UL
30+ Links
Several 40+ mile links
Deploying microwave since
2007
• Expansion ongoing
• Fiber interconnect to
Colorado Springs
Deployment Challenges
Weather * Power * Terrain
Skywerks has overcome them all!
Thank you!
Contact
Trango Systems. Inc.
John Seaman
Vice President - Sales
14118 Stowe Drive
Poway, CA 92064
USA
(o) +1-858-391-0010
(m) +1-858-335-4384
Email: john@trangosys.com
Skype: johnseam11
www.trangosys.com
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