Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.
Advanced LTE Planning Tool
Transcript of Advanced LTE Planning Tool
hmed Salah Mohamed
arim Mamdouh Rajab
ohamed Mohamed Mahdy
ohamed Saed Hassan
ostafa Elsayed Fawzy
LTE => Long Term Evolution
LTE is the next generation of the mobile broad band technology
Data rate of 100 Mbps
It's the next level after UMTS (3G) technology
We designed a tool by using C# language has the ability to calculate the actual number of cell to cover a certain area by LTE technology, using two algorthims for Ericsson technology, one for capacity & the other for coverage.
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)
Standard of living.
Dimension of site.
1.Coverage dimensioning in UL&DL
2.Capacity dimensioning methods:
System Interference Based
Cell Rings Based
MAPL(Max Allowed Path loss)
Calculate Cell Radius
Factors affecting maximum cell throughput:
Max. Cell Throughput
Interference Margin (IM)
Signal To Interference To Noise Ratio (SINR)
Average Bit rate Per Resource Block (RRB)
Cell Throughput (T cell)
IM,dl :Interference margin in down link.
Pdl,rb: Power transmitted per resource block in downlink.
F: Average ratio between the received power from other cells to that of own cell (Interference Factor).
N,rb: Thermal noise per resource block in downlink.
Lsa,max: Max signal attenuation in downlink.
H: Average attenuation factor dependent on site geometry,antenna pattern,wave propagation exponent and base station height,recommended 0.36.
From Link simulations
a1 ,a2 ,a3 : Fitted parameters.
a0 : Fitted parameter that represents the maximum obtainable bit rate in one resource block.
Cell Throughput ( T cell)
The bit rate per resource block is scaled by total no. of resource blocks to obtain average bit rate in downlink.
R avg,dl = n,rb * R,rb
: Total number of resource blocks in downlink
: Average bitrate in downlink.
: Average bitrate per resource block.
T.cell=Q,dl * Ravg,dl
:Cell throughput in downlink
The bit rate at the cell edge = average bit rate in cell
R avg,ul= R,rb * (n,rb - n,pucch)
: Average bit rate in uplink.
: Average bit rate per resource block.
: Total number of resource blocks in uplink.
: Physical uplink control channel.
T,cell = Q,ul * Ravg,ul
The main idea is done by dividing the cell in to a group of rings
Path Loss Lsa,max
System load QDL
for listening to us