Atoll is a radio network design tool for LTE planning. It uses the CrossWave propagation model which takes into account morphology data like buildings and clutter classes to more accurately model radio wave propagation compared to standard propagation models like Hata. CrossWave predictions are tuned using results from calibration campaigns to improve accuracy. Atoll also allows for 3D coverage modeling and optimization of heterogeneous networks with different transmitter layers.

1. LTE Radio Network
Design Tool - Atoll
1

2. Q: What is Atoll?
Answer
2
Ref: forsk.com

3. Q: What are Atoll General
Concepts?
Answer
3Ref: forsk.com

4. Q: What is LTE Planning
Workflow in Atoll?
Answer
4Ref: forsk.com

5. Q: What is a clutter?
� Clutter refers to a Land Use/Land
Cover classification of surface features
which impact on radio wave
propagation. These features are
classed according to their physical and
electrical properties.
Answer
5Ref: google pictures
Ref: www.teleres.com.au

6. Q: What is a cluster?
(in GSM)
� The number of cells per cluster is
restricted by the requirement that the
clusters must fit together like jig-saw
pieces. The possible cell clusters are
the 4-,7-,12- and 21-cell clusters.
Answer
6Ref: google pictures
Ref: www.doc.ic.ac.uk

7. Q: What are Geographic
Data Properties?
(clutter classes)
Answer
7
Ref: Kingway Tek

8. Q: What are heights in
MAP?
� clutter altitude: aka Digital Terrain Model (DTM) is
a continuous model of ground-level land surface,
represented by a digital raster grid with each grid
cell holding an elevation value. A DTM is a
fundamental data input for radio propagation
studies in that terrain blocks and reflects radio
waves.
� clutter height: the average building height on
clutter.
� 3D building: the shape and height of real buildings
Answer
8Ref: gamesminecraft.org

9. Q: What are heights in
MAP?
Answer

10. Q: What are Geographic
Data Properties?
(DTM)
Answer
10
Ref: Kingway Tek

11. Q: What are Geographic Data
Properties?
(3D building vs Clutter height)
Answer
11
Ref: Kingway Tek

12. Q: What are Global Settings in
Atoll?
(Band / Duplexing / BW)
Answer
12Ref: forsk.com

13. Q: What are Radio Parameters
in Atoll?
(Site / Transmitter / Cell)
Answer
13Ref: forsk.com Ref: www.telecomhall.com

14. Q: What are Radio Parameters
in Atoll?
(Site / Transmitter / Cell)
Answer
14Ref: forsk.com

15. Q: What are
Transmitters' Properties?
(BTS, NodeB, eNB)
Answer
15
Ref: forsk.com

16. Q: What are HetNets ?
(Benefits)
Answer
16
Ref: forsk.com

17. Q: What are HetNets ?
(Layers Management)
Answer
17
Ref: forsk.com

18. Q: What is CrossWave
Propagation Model ?
Answer
18Ref: forsk/Teltai

19. Q: What is Morphology data
used in CrossWave ?
Answer
19Ref: forsk/Teltai

20. Q: What is Facet data used in
CrossWave ?
Answer
20Ref: forsk/Teltai
Ref: google pictures

21. Q: What is Graph data used in
CrossWave ?
Answer
21Ref: forsk/Teltai

22. Q: What are Std. Predictions?
(Coverage by Transmitter)
Answer
22Ref: forsk.com

23. Q: What are Std. Predictions?
(Coverage by signal level)
Answer
23Ref: forsk.com

24. Q: What are the model results
wo tuning ?
(Hata vs CrossWave)
Answer
24Ref: forsk/Teltai

25. Q: What are the model results
with tuning ?
(Hata vs CrossWave)
Answer
25Ref: forsk/Teltai

26. Q: What is about micro
propagation modelling ?
Answer
26Ref: forsk/Teltai

27. Q: What is 3D Coverage in
Atoll ?
Answer
27Ref: forsk/Teltai

28. Q: What is SPM?
Answer
28Ref: Aalto University
� Standard Propagation Model in Atoll is
based on Okumura-Hata models.
� SPM is based on empirical formulas
and a set of parameters are set to their
default values

29. Q: What is calibration
campaign ?
(SPM vs CrossWave)
Answer
29Ref: forsk/Teltai

30. Thank You
30