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LTE Dimensioning

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by

Karim Mamdouh

on 9 September 2014

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Transcript of LTE Dimensioning

Advanced
LTE
Planning Tool

What is LTE?!
LTE
=> Long Term Evolution
LTE is the next generation of the mobile broad band technology
Data rate from 100 to 300 Mbps
It's the next level after UMTS (3G) technology
LTE technical aspects
Planning Process
Developing of Dimensioning Tool
Tool Presentation
Teams Members:
Karim Mamdouh Rajab
Mostafa Elsayed Fawzy
Ahmed Salah Mohamed
Mohamed Saeed Hassan
Mohamed Mohamed Mahdy
Supervised By:
Prof. Dr. Talaat Elgarf
Objective
W
e designed a tool by using
C#
language, has the ability to calculate the actual number of cells need to cover a certain area by
LTE
technology via using
E
ricsson technology for
2
algorithms for
C
overage &
C
apacity.
Outlines
Mobile Generation
LTE Technology
LTE Planning
Tool Presentation
Mobile Generations
LTE Targets
Spectral efficiency 2 to 4 times times more than HSPA technology (release 6).
Peak rates exceed 100 Mbps in downlink & 50 Mbps in uplink.
Decrease the latency comparing to 3G technology
Throughput according to shannon's theory:-
C = B log2 (1+SNR)
Handover Latency
Spectral Efficiency
Band width on demands up to 20 Mhz
1.4 MHz
3 MHz
5 MHz
10 MHz
15 MHz
20 MHz

OFDMA Technology
MIMo technology
Adaptation Modulation
LTE network architecture
Network Service Area
Network
LTE frame
Collecting Informations
Standard Of Livings
Expected Traffic
Dimension Of Site
Project Phaces
Studying Coverage
&
Capacity Dimensioning
Developing
LTE
Dimensioning Tool
UL Coverage
Dimensioning Flow Chart
Start LTE
Dimensioning
Link Budgets
Calculation

MAPL
(Max Allowed
Pass Loss)
Propagation
Model
Calculate
Cell Radius
&
Site Count
END
Margins
RX-Sensitivity
Losses Margin
System Gains
1.Penetration Loss.
2.Feeder Loss.
3.Jumper Loss.
4.Connector Loss.
MIMOGains, Diversity&Beam Forming
Interference Margin
System
DownLink
Noise Rise in DL
Average DL SINR
DL average bit rate per resource block
UpLink
Thanks!
Any Questions?!
Item
Subcategory
3GPP
LTE (Release 8)
3GPP
LTE-Advanced
(Release 10)
Peak Data Rate
Downlink
Uplink
300 Mbps
150 Mbps
1 Gbps
500 Mbps
Peak Spectral
Efficiency (b/s/Hz)
Downlink
Uplink
16.3 (4x4 MIMO)
30 (Up to 8x8 MIMO)
4.3 (64 QAM SISO)
15 (Up to 4x4 MIMO)
Tool Presentation
Why we used C#?!
1. Independent Platform :
Work in any environment ( Windows, Linux, MAC,…etc.).
Don’t need to develop different versions for each platform.
2. Object oriented programming :
Modular structure.
Distribute efforts.
Easily debugged and modified.
DL average user bit rate
Cell Throughput in DL
a0,a1,a2,a3
=> Fitted Parameteres
From Okumora-Hata propagation model we can get the cell radius leading to simply calculate cell area and site count.
DL noise rise at cell edge
DL cell edge SINR
DL Coverage
Conclusion
The target of our project was to design a tool able to make automatic cell planning and how to use our resources in the best usage to get the best result, also how to calculate the bit rate for the network to get the best data rate for network users.
Future Work:
To use 3D maps instead of 2D maps.
Draw the actual coverage antenna shape via draw the real dimensions of the antennas.
To design a tool abl to edit previous projects to avoid building projects from scratch.
Full transcript