2.12 - THROUGHPUT (SPEED in MBPS) CALCULATION IN 4G LTE
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- Опубліковано 12 вер 2024
- THROUGHPUT (SPEED in MBPS) CALCULATION IN 4G LTE
In this video we have shown 4 methods by which throughput can be calculated in LTE and how various factors affect the actual throughput that an end user experiences. -
1. First we have calculated using Shanon Hartley Formula and Nyquist's Sampling theory. Which is a generic formula and can be used for any wireless commumication, be it GSM/2G or LTE/4G.
2. Secondly we have tried to calculate the throughput using a more LTE Specific technique. We tried calculating from Resource Element perspective.
3. However there are several other factors that affect the throughput. One of them is the overheads that are being. So in third method we have shown how the IP layer throughput varies from the physical layer throughput.
4. For the fourth method one can refer to 3GPP document 36.213, Table 7.1.7.1-1, Table 7.1.7.2.1-1 and Table 7.1.7.2.2-1 for more accurate calculations of capacity. Table 7.1.7.1-1 shows the mapping between MCS (Modulation and Coding Scheme) index and TBS (Transport Block Size) index. Table 7.1.7.2.1-1 shows the transport block size. It indicates the number of bits that can be transmitted in a subframe/TTI (Transmit Time Interval).
www.etsi.org/de...
This is the Twelfth and Final Video of the LTE- Fundamental series. You can catch the full series by following this link
• 2 - Fundamental Of 4G ...
Also, Check out our series on Evolution of communication -
• 1 - Evolution of Commu...
Reference:
Images - Google images, Openclipart
Music - Bensound, Google youtube audio library
Content - 1. LTE - The UMTS Long Term Evolution (From Theory to Practice - book)
2. LTE Advanced by Wiley Publication - Book
3. Other Internet Resources
4. 3GPP Documents and standards (Open Source - 36.213)
5. Sharetechnote
It's great and easy to follow. Thank you LTE for bringing knowledge to us! Keep up your good work. BTW, the voice of the Indian man is great too.
+crystalmild - Thanks a lot for the nice words.
it's very well explained just as all previous videos. Very good material for entry-level understanding of the LTE. Keep on mate!
That's one superb illustration! Much appreciated!
You are rare excellent teacher. i always like your e-teaching
Thanks Ravi. Happy Learning. :)
Informative video...Thanks.
Good video, Please be creating such kind of valuable stuff
nice video! great use of graphics and great explanation!
Thanks Marco. Your support means a lot to us. Happy Learning
Good visual material to explain and understand LTE to calcule level
Hi, formulation is wrong! meaning 1 RB contains 8400*2 REs not 8400*2000, although final calculation is correct.
Really Nice Videos from this Channel ... Explained Easy way and graphical respresentations
Thanks a lot. Happy Learning.
Very good, simple, objective and concise
It 's really astonishing. I have a question at minutes 2:59, if the MIMO technique is asymmetric 4x6, which factor should be used in estimating throughput, 4 or 6? Thank you so much for doing the great jobs.
I didn't expected I would be studying by a Shakti Kapoor like VOICE. well Jokes apart. Really Good stuff. Eagerly waiting for new videos
+jay parekh - Haha! Thanks man. We are working on our next video. Hopefully it will be complete before new year.
Please upload more videos. I just love your channel.. content is great ☺️👌👌👏👏👏
+Thunder 440v - We plan to. Thanks for your support. Happy Learning.
Good video to understand throughput in LTE as well as throughput in general
its perfect like your all past videos , but can improve voice-over , its quit noisy
I think previous video's were much better.
Hi Aman. Can you please help us understand what went wrong? Or what are the things that made the previous videos better?
This voice is better than the robotic voice!
The background music is too noisy
Are you sure 1resouse element is equal to 1 sub carrier ?
excellent information. But your voice is important than music. plz try to make video with ur quality voice not with music. Thanks
thanks for the video and keep doing what you doing .....
Thanks Hari.
This is such a quality video, why did you stop making videos?
great video!
Thanks Hayden
What happened dear educators? You have stopped making videos.
I always liked it.
I understand that these videos are of deep engineering so normal students might not have visited it.
I suggest that please make videos in serial wise manner based on University/IIT/NIT syllabus (which may have some divergence) & ESE, CSE syllabus (you may include previous year questions)... It will attract more students and will turn revenue for u.
Jai Hind.
+Ravi Raushan Kumar - Thanks for the suggestions. Revenue was never our primary motive.
To be honest we got little lazy and occupied with stuffs. But we plan to restart soon.
Happy Learning.
Jai Hind
thank you!
Nice video. Thankyou so much!! Sir do you have a dataset for predicting throughput of base stations?I want to do load balancing in heterogeneous network using machine learning
Dear @LTE:
How come a channel of BW B provide 2B symbols per sec. According to Nyquist rate, if k is the max frequency of the BW B then we must sample at a rate of 2k per sec. please correct me if i am wrong.
brilliant!
+紀建榮 - Thanks
Bring back the old voice my friend. It'll help you growth your audience. ;) You could do some on ANR, X2 link, call setup, HO Parms, A3 as well. Kudos!
We will. This is the last video of fundamental series. In our next series we will cover them. So stay tuned.
Happy Learning
I am very grateful with the video you created
But, can you help me to calculate throughput user data / square km?
To determine the number of e node b based on capacity.
Sorry my english is very bad.
thank u very much
Great videos and please do NOT bring back the robot voices - I much prefer the Indian accent.
+Goat Industries - Thanks a lot. As of now we are sticking with the human voice.
Great news!
While calculation of maximum DL throughput we consider enodeB uses all resources for DL only. How is it possible. I mean all subframes for DL. Same thing for UL. Why don't we consider UL traffic in overhead.
There are 2 kinds of duplexing modes which can be used, FDD or TDD. In FDD, both uplink and downlink use different bandwidth, therefore they are independent each other. In TDD, the mobile antennas work either in uplink or in downlink. They rapidly switch their roles, however a significant amount of time they are in downlink mode. Please read about LTE frame structures to get more clarity.
www.rfwireless-world.com/Tutorials/LTE-frame-structure.html
very nice
What is Symbol rate? I understand the data rate is BW/SCS * log2(qam)* mimo. But what is the symbol rate? Is 64qam’s symbol rate 3 times higher than qpsk?
C = BW * log(1+ S/N) this is how many symbols you can send per second. If you are using no modulation, then symbol rate = bit rate. When you use 64QAM you can send 6 bits per one symbol so data rate would be 6x symbol rate.
Are the number of Resource block allocated in LTE channel directly correlated to the number of users connected? (as mentioned in 5:50 of the video)
+Sagnik Basu - Not exactly. We gave that example for simplicity.
There maybe several other factors affecting the Resource Block allocated to a user. It mainly depends upon the requirement of the user (which may depend upon the QOS of the Service Requested or the RF condition of the user etc) and the total number of resource blocks available at the eNodeB.
1.modulation coding scheme based on snd
At 3.54 from where 2000 came...if anyone knows please reply
wrong calculation. 8400*2 should be there. Final calculation is right although
РТФ, привет
pleaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaase stop using this voice it's really make me bored and nutrifiz
+Ahmed Khalid - should we go back to the old synthetic voice?
LTE actually I don't like both new and old 😂 but the older sound is better compared with this Indian man hhhh
LTE but you should know that your channel is one of the greatest channels in telecom content in UA-cam and I really thank you
+Ahmed Khalid - lol. I guess we have reached a deadlock then. Most people have been complaining about emotion less Jenni and We are Indians so we cannot change that fact.
Check the Hetnet video and let us know what you think. We have used a different human voice in it.
Thanks Khalid. Those words mean a lot to us.
Happy Learning.