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2.9 - CARRIER AGGREGATION TECHNIQUE (CA) -CAPACITY & COVERAGE ENHANCEMENT IN 4G LTE

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CARRIER AGGREGATION TECHNIQUE (CA) -CAPACITY & COVERAGE ENHANCEMENT IN 4G LTE
Imagine a road is connecting two places. Now, As the number of people travelling increases, what do we do to serve the increased traffic? We add more lanes or construct flyovers.
Similarly in LTE, Carrier aggregation is used to serve increasing bit rate demand. Here bandwidth is increased by aggregating separate spectrum, thus increasing the bit rate and network performance.
We have shown the different technique can be use to deploy CA, such as
Intra-band Contagious - easiest to deploy
Intra-band Non Contagious - used in fragmented network
Inter-band - Complex
also we have shown the LTE CA Classes to differentiate from others.
It also includes gradual work done at different country to deploy CA and plan for the future release.
This is the ninth 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)
5. Radio Electronics websites
6. CA for Dummies ( Book by Wiley )

Опубликовано:

7 мар 2017

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Комментарии : 90

@thunder440v3 6 лет назад

Content on this channel is really good. Stop worrying about voice (human/robotic). Content is good most importantly and voice is good enough to understand . Thanks .

@LTE4G 6 лет назад

+Thunder 440v - Thanks a lot for the nice words. It's people like you who motivate us to work hard. We will definitely keep making videos as long as we can. Happy Learning.

@thunder440v3 6 лет назад

Thanks 😊

@samykamkar 6 лет назад

Great video! I love your series. I must note that I prefer the synthesized voice as it was easier for me to understand. Keep up the awesome videos.

@LTE4G 6 лет назад

Really? You are the first person who said that.

@samykamkar 6 лет назад

The highest rated comment here said the same thing. Anyway, it’s your channel and you can share however you like! I really appreciate the information any way you do it!

@JakeHambyZ80 4 года назад

@@LTE4G Yes, I like your voice much better than the synthesized voice.

@wottowutzke 4 года назад

Very, very important and great explanation, good background, thanks a lot, success

@alanspicertelecom 7 лет назад

You finally have the CA #9 done. I should have come back more often. Now I'm over 1 week late :-)

@LTE4G 7 лет назад

+Alan Spicer - lol! Sometimes we feel that we should increase our our frequency of video upload. You make us realize that it's okay to be slow. We always appreciate your support. Happy learning

@su-hyunjung2477 6 лет назад

Thank you very much for your great video :) easy to understand, you use your natural voice though. 👍🏻

@LTE4G 6 лет назад

+Su-Hyun Jung - Thanks a lot. Happy Learning.

@slhzidi 7 лет назад

Keep up the amazing work! It's really helping and enlightening!

@LTE4G 7 лет назад

Thanks a lot Sadzey.

@sanjaysinghsolanki3953 7 лет назад

Kudos for good work and thanks a lot for sharing these videos. Keep up doing wonderful work !!!

@LTE4G 7 лет назад

Thanks Mr. Solanki. We have finally migrated from Text to Speech converter to human voice. We would appreciate some feedback.

@ankurtomar 5 лет назад

Carrier aggregation 4G+

@shuyuchen3080 7 лет назад

Keep up the good work! Very helpful with understanding. I would vote for the synthetic voice since it does not have accents....

@LTE4G 7 лет назад

+Shuyu chen - Thanks Shuyu. Is it difficult to understand?

@johannesvoigt9071 7 лет назад

I really appreciated you using your natural voice! i find it a lot easier to understand than the synthetic ones. your accent is quiet present, but it is good to understand! :)

@prernakaushik6340 5 лет назад

Content is very good, very nicely explained.Thanks a lot

@manimaranchandran3109 4 года назад

Great video with fruitful information's.. 👍

@venkatanaveenpotnuru2164 7 лет назад

that was awesome and very informative. thanks and all the best.

@LTE4G 7 лет назад

Thanks Venkat. Happy Learning.

@anshulgoyal8506 7 лет назад

Great job people, this kind of stuff is really making things easier to understand for beginners.Can you make such effort covering the LTE stack? Thanks in advance :)

@derwoodkhan4804 4 года назад

This is just beautifully explained . Thank you .

@hordevran 7 лет назад

Brilliant video as usual. Thanks a lot!

@LTE4G 7 лет назад

+HordeMajster - Thanks man

@cleversonahum 4 года назад

Amazing explanation, thx

@ssasidhar75 6 лет назад

excellent explanation..

@LTE4G 6 лет назад

Thanks Sasidhar. Happy Learning.

@mohammadalmaazi 5 лет назад

I am sorry , you are doing a great job. I really understand a lot of concepts easily. However, the accent in this video makes it tedious and so difficult to absorb the information presented here. you are explaining to the whole researchers who they are from various countries not only from India. So I recommend strongly to help all people to get benefits from your amazing explanation, you should use a clear accent not the Indian one . All my respect for you amazing channel.

@JakeHambyZ80 4 года назад

I have the opposite feedback. I find the author's Indian accent much more pleasant to listen to than the people he paid to do the voiceovers in the earlier videos in the series. I'd love to see some new videos in the same style as the later ones in the series.

@CYJOEC 5 лет назад

Two questions dumb perhaps: 1) Isn't SCC eNB too distant for UE to well receive the signal? Thought the UE Rx would be designed to receive the signal within main cell rather than neighboring cell? 2) Can the Antenna operate at two or more carriers simultaneously when running CA?

@palashkundu1771 2 года назад

Great video and easier to understand. Is it possible for supporting CA with CCs from different network operators?

@artindance2992 5 лет назад

Good video, is there any video on Dual Connectivity ? Why we need dual connectivity , what is the difference between DC & Inter ENB CA. Thanks

@stevenz995 7 лет назад

Great video! One question: does CA only work well at cell edge? at 2:30 the graph shows a phone communicating with several different cell towers (each cell tower is a eNB right?). I thought CA is about one serving basestation capable of handling multiple carrier components

@LTE4G 7 лет назад

Thanks Steven. Glad that you asked we also had similar confusion. The answer is No! CA can be implemented anywhere. It can be implemented inside a single cell or inside overlapping cells(where small cells are involved). At cell edge where the performance degrades CA can be used to enhance it. In co-ordinated Multipoint (shall be discussed in upcoming video) you will see how signals from different sites are used constructively to serve user more efficiently. In release 10, the CA IS about one serving basesatation capable of handling multiple carrier components. but in Release 11 the support for multiple time advances was introduced i.e cells belonging to two different Base station. It is mentioned in the video. Happy Learning.

@mohitmnit 3 года назад

The lane example/analogy that u took would be more appropriate with MIMO rather than CA. :) but anyways A very nice video

@pedrosalazarortega6375 Год назад

Thank you so much for this content! Which book or books you read to make this work come true?

@RadhaKrishnaArvapally 4 года назад

presentation method is very good. "writing with pencil". which software did you use for this?

@MikeJack4Music 4 года назад

I would like to know as well.

@HimanshuKushwahaHimmi 6 лет назад

Are you people planning to do any videos regarding 5G NR? Btw great videos. :)

@lidiejoseph8506 7 лет назад

Very helpful thank you! can you please explain how to know if an LTE device support or does not support CA?

@yfs9035 3 года назад

AT&T carrier aggregation is godly on the new Firstnet B14 buildouts, It's 4 or 5X CA. 300Mbps is easy

@LTE4G 3 года назад

That's great to hear. Tell us more about it. where exactly has it been deployed?

@namitaigit 6 лет назад

Hi, Great video! Thanks a lot. Do we have any link available for the slides?

@indiacha Год назад

Redmi K50I mobile supports CA. In India telecom giant Jio tested 5g first on this device.

@LIFE-hm8wp 5 лет назад

If a operator having 3 freq band 2300 1800 and 850 having 20 10 5 mhz freq. What will be the scenario in term of CA in this case. Pls explain.

@RadhaKrishnaArvapally 4 года назад

You are showing 5 CC are from 5 different towers. Is that right?

@thusharadilruk9670 3 года назад

What is the better band for PCC?

@akhimakhi93 7 лет назад

Hey I don't understand. So the intra band can have contiguous and non contiguous carriers? Whats the difference between inter and intra. Really confused

@LTE4G 7 лет назад

+Akhilesh Rao - Yes Intra Band CA can have contiguous as well non contiguous carriers. In simple words Band refers to a chunk of Frequency Spectrum in which the service provider operates. In LTE there can be multiple bands. For example Band 3 refers to 1800MHz-FDD Band, where 1710-1755MHz is used for Uplink and 1805-1880MHz is used for downlink operation. Similarly Band 40 refers to 2300Mhz-Tdd banb, where 2300-2400Mhz is used for operation. You can refer to this link for further clarification. www.radio-electronics.com/info/cellulartelecomms/lte-long-term-evolution/lte-frequency-spectrum.php

@atchutram9894 7 лет назад

This gives an impression that each component carrier is necessarily from different physical eNodeBs. I don't think it is the truth, is it?

@LTE4G 7 лет назад

+atchut ram - No the component carriers can be of same eNodeB. Sometimes one eNodeB can radiate in different frequency in a particular sector. The different frequencies will have different RRH. In such case the component carriers can be of same eNodeB.

@sanyambansal 7 лет назад

great work (y) ........ can u provide any ppt or pdf for the same???

@LTE4G 7 лет назад

Hello Sanyam, Can you please specify your requirement?

@sanyambansal 7 лет назад

i need to deliver a presentation and it includes the basics of LTE....so any help u could provide will be appreciable!!

@LTE4G 7 лет назад

+Sanyam Bansal - There are various presentations available all over the internet. You can refer to them. If you have any doubt you can ask us.

@elhorla 7 лет назад

Good Job! I prefer the other voice thou.

@LTE4G 7 лет назад

+Guillermo Guevara - The robot one or the one in HetNet?

@elhorla 7 лет назад

Synthetic voice.

@vishnuvardhan0099 7 лет назад

Which textbook can we refer to get more knowledge about LTE

@LTE4G 7 лет назад

+vishnu vardhan - There are plenty of books available. All the books published by Wiley are good. We refer to them a lot. Happy Learning.

@HateNothing 7 лет назад

Hi, Is CA possbile between FDD carrier and TDD carrier(Band)?

@LTE4G 7 лет назад

yes it is possible.

@lieutenantgreen626 4 года назад

РТФ, привет

@gyzq 6 лет назад

the diagram is good， but the accent is a bit too strong.

@jyotiarora5649 6 лет назад

nice video....please tell me how to use carrier aggregation in ofdm code

@LTE4G 6 лет назад

+Jyoti Arora - Can you please elaborate your question?

@bikeshshrestha9550 7 лет назад

Is CA possible between two operators? If yes then is it in use or not?

@LTE4G 7 лет назад

+Bikesh Shrestha - As of now no. But who knows in future we see it happening

@RajatSingh-ks1cd 7 лет назад

Will carrier aggregation work if there is congestion in nearby cells??

@LTE4G 7 лет назад

+Rajat Singh - No it won't. The primary requirement is free Resurce Blocks.

@RajatSingh-ks1cd 7 лет назад

LTE But RF congestion is caused by high prb

@LTE4G 7 лет назад

Can you please elaborate your question?

@RajatSingh-ks1cd 7 лет назад

LTE I want to know that what can we do to mitigate the high prb utilisation issue will planning of small cell help ? Cause In my region there is a highly utilised site and to mitigate the issue we planned a macro site nearby but after radiation of that site the performance of the small cell present in the region started to degrade

@LTE4G 7 лет назад

In LTE-Advanced there is a feature called Co-Ordinated Multipoint which can be implemented to reduce the Inter Cell interference. We are not RF experts maybe you can consult other experts for a better advice.

@mohammadalmaazi 5 лет назад

why did you change the lecturer , the language in this video is not clear at all as it's an indian accent. his English is not clear as well as previous videos. dislike for the ambiguity and inability of understanding what's mentioned in this video.