geodata for wireless network planning - geosmart asia · digitalglobe proprietary and business...
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Geodata for Wireless Network Planning
Mobile World Congress 2017
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Overview
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DigitalGlobe Proprietary and Business Confidential
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DigitalGlobe Proprietary and Business Confidential
Network needs are changing
• Move towards high frequency spectrum
- Sub-6GHz to mmWave
- Means Line of Sight (LOS) becomes critical
• Densification - Micro cell and Pico cell as well as Low Power Wide Area (LPWA); stuffing more and more network equipment into a smaller areas
- More potential for interference requires smart planning
- All these micro RANs need to be connected back to the core network, Microwave emerging as optimal transport
• Interoperability - Huge amounts of data sent through multiple frequencies all acquired by a single receiver
- Increased vulnerability to data surge at high traffic times
- Requires microwave backhaul path diversity to handle failure scenarios
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DigitalGlobe Proprietary and Business Confidential
Urban Suburban
Rural
- Traditional domain of advance mobile networks - Current expansion of small cell - Vison for 5G
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Current geodata Practice
3D polygon
These data are great for planning but are very high cost and limited to the urban core.
2.5D Clutter Height
These data are low cost and scalable but do not provide accurate predictions
Mobile World Congress 2017
2D Clutter
These data are very low cost, but provide very poor prediction accuracy
3d Buildings
Clutter height or Obstruction Heights (DHM)
Clutter (Land Classification)
Terrain (DTM)
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DigitalGlobe – Overview of Technology
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DigitalGlobe Proprietary and Business Confidential
Creating the Industry’s Best Elevation Data fueled by industry's best constellation and archive
8 International Defense & Intelligence
IKONOS®
80cm GSD1 9 m CE902
QuickBird®
65cm GSD 23 m CE90
WorldView-3®
30 cm GSD <3.0 m CE90
WorldView-2®
46 cm GSD <3.5 m CE90
GeoEye-1®
46 cm GSD <3.5 m CE90
WorldView-1®
50 cm GSD <4 m CE90
WorldView-4®
30 cm GSD <3.0 m CE90
1. Ground Separation Distance, a common measure of spatial resolution; 2. Circular Error 90%, a measure in meters of the native spatial accuracy of the satellite
Rio de Janeiro, Brazil | Vricon DSM
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DigitalGlobe® Proprietary and Business Confidential
2D footprints
Building footprint extraction with Machine Learning technology
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How is it Done?
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Higher Resolution Images = Better 3D Models
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Geodata Products
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DigitalGlobe® Proprietary and Business Confidential
Data layers
• Geo dataset is composed by 3D vector, 2D Liner Vector, Clutter (DLU&DHM), DTM (and ortho imagery optionally).
These can represent a number of different elements including roads, bridges, rivers, coastlines, etc.
3D Vector
2D Liner Vector (Optional)
These dataset are developed from high accurate building footprint and elevation model. 3D forest and bridge can be provided as optional.
Clutter (DLU & DHM) Digital Land Use offers a range of statistically categorized classes (e.g., forest, high building, etc.). Digital Height Models provide height data as Raster.
Digital Terrain Models provide a 3D model of the surface of the earth.
DTM
A high-resolution image simplify the 3D telecom dataset compared to the real world.
Ortho imagery (Optional)
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True Ortho
Mobile World Congress 2017
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DSM (All Surfaces)
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DTM (Terrain)
Mobile World Congress 2017
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Obstruction Height (DHM or Digital Height Model)
Mobile World Congress 2017
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Clutter (Land Use and Land Cover Classification)
Mobile World Congress 2017
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DigitalGlobe® Proprietary and Business Confidential
3D Vectors
• AW3D Telecom - sample (3D Vector)
©NTTDATA included DigitalGlobe,Inc.
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Use Case Descriptions
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Finding the ROI
Industries that rely on line of sight communications have very few options to accurately model and predict success/failure rates at scale
Satellite TV
Microwave backhaul
Future wireless networks (5G)
Fixed Wireless Broadband
Geodata available through DigitalGlobe could:
Reduce service calls/truck rolls
Reduce desktop planning
Reduce field visits
Enable earlier real estate planning and procurement, with known alternates.
Speed up time to market
Mobile World Congress 2017
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Use Case – Derive Accurate RF Models without Redundant Drive Testing and Tuning
Mobile World Congress 2017
Drive test measurements overlaid with non-tuned 30 meter geodata – low correlation
Drive test measurements overlaid with high res 10 meter geodata – much better correlation w/o tuning
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Telco Radio Line of Sight
Mobile World Congress 2017
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Finding Solutions for Microwave Backhaul Planners
Problem: low accuracy obstruction height Geodata is overestimating clear LoS, creating near 60% failure rate of planed microwave links - Fujitsu Network Communications
Current remedy:
Numerous field visits & re-visits
Re-planning of microwave links
Longer than required planning & development schedules
• Elevation data available through DigitalGlobe could:
Reduce microwave planning schedule
Reduce field visits
Reduce costs
Enable earlier real estate planning and procurement, with known alternates.
Mobile World Congress 2017
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Improved Microwave Backhaul Planning
Mobile World Congress 2017
Microwave Path profile using surveyed obstruction data
Microwave Path profile using Vricon Height Obstruction data
A
B
These two microwave profiles are of the exact same area. With traditional field surveying, a series of obstructions (indicated with arrow A) would lead to a disqualification of this path from backhaul planning. The DigitalGlobe Height Obstruction data shows that this area (indicated with arrow B) is clearly below the Fresnel zone and would be an optimal microwave link.
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Improved Microwave Backhaul Planning
We used to rely on lower quality clutter data in the New York area. With this data, 60% of all our planned links failed when they were checked by our surveyors. Now, thanks to the accurate and complete representation of buildings and foliage in the Vricon 3D data provided by DigitalGlobe, we are able to confidently reject blocked links and pick the clear links, all within our virtual desk plan. Thanks to this high-quality clutter height data, we have seen a 98% decrease in false positives.”
—Wade McKin
Microwave Solutions Architect V, Fujitsu Network Communications
Mobile World Congress 2017