- Видео 40
- Просмотров 28 658
Shailesh Kaushik
Индия
Добавлен 31 авг 2008
Viewer Reachout: LTE MAC - General Overview with more focus on Multiplexing/Demultiplexing
In this video We have discussed the LTE MAC layer in detail with a bit more focus on Multiplexing and Demultiplexing.
Просмотров: 155
Видео
NR5G: Understanding Non Terrestrial Networks (NTN) in 5G part-03 (Timing Relationship Enhancements)
Просмотров 1143 месяца назад
In this Video, We study the #NTN adaptations in #5g. Due to large propagation delays, we may need to maintain an offset between UL and DL windows at UE as we saw in earlier videos. This poses another challenge related to timing relationships. In this video we learn about those challenges and how we overcome those challenges.
NR5G: Understanding Non Terrestrial Networks (NTN) in 5G part-02 (SIB19 Parameters)
Просмотров 1683 месяца назад
In this Video, We try to study the #NTN adaptations in #5g. #SIB19 parameters and their significance is discussed in detail. For part 1 of NTN series: ruclips.net/video/Yh50DrtxPNA/видео.html
NR5G: Understanding Non Terrestrial Networks (NTN) in 5G part-01 (Timing Adjustment)
Просмотров 4434 месяца назад
In this Video, We try to study the #NTN adaptations in #5g. Propagation delays in non terrestrial Networks are quite high and pose a challenge for timing adjustment at UE side. Here we study that problem specifically and how we have countered that in 5G.
Viewer Reachout: Timing Advance /Time Alignment in 5G (ENGLISH)
Просмотров 6738 месяцев назад
In this one, we discussed about the TA concept and parameters etc in detail.
Multithreading through C(POSIX)- Thread Attributes.
Просмотров 1849 месяцев назад
In this video we go deep into multhithreading concepts and discuss the concept of thread attributes and their implementation in C through POSIX library.
Understanding Multithreading through C (POSIX)
Просмотров 29010 месяцев назад
This is an explanation of multithreading basics and how do we achieve it through C.
Shikaar | शिकार | Aaj ki raat | आज की रात
Просмотров 156Год назад
Shikaar | शिकार | Aaj ki raat | आज की रात
LTE Hangout 8 : UE turns on. (MSG3, CR and RACH procedure conclusion)
Просмотров 384Год назад
In this particular hangout we discuss the RACH procedure conclusion after we discussed RAR in previous video.
LTE Hangout 7 : UE turns on. RAR
Просмотров 372Год назад
In this particular hangout we discuss the initial procedures when a UE is turned on. Our focus in this one is RAR message in detail.
LTE Hangout 6: Complete study of PDCCH and CCE allocation.
Просмотров 715Год назад
In this particular hangout we discuss the structure of PDCCH and it's allocation in terms of CCEs and the factors impacting this process.
LTE Hangout 5 : UE turns on. RACH
Просмотров 535Год назад
In this particular hangout we discuss the initial procedures when a UE is turned on. Our focus in this one is RACH message in detail.
LTE Hangout 2 : UE turns on. PSS|SSS|MIB
Просмотров 964Год назад
LTE Hangout 2 : UE turns on. PSS|SSS|MIB
LTE Hangout 1 : ULTRA BASIC discussion about LTE for absolute beginners in Telecom
Просмотров 842Год назад
LTE Hangout 1 : ULTRA BASIC discussion about LTE for absolute beginners in Telecom
5G Hangout (June 24, 2023): Discussion on Modulation, coding schemes etc.
Просмотров 498Год назад
5G Hangout (June 24, 2023): Discussion on Modulation, coding schemes etc.
NR5G Channels Structure(Logical/Transport/Physical) - Part 3(Hindi)
Просмотров 506Год назад
NR5G Channels Structure(Logical/Transport/Physical) - Part 3(Hindi)
NR5G Channels Structure(Logical/Transport/Physical) - Part 2(Hindi)
Просмотров 447Год назад
NR5G Channels Structure(Logical/Transport/Physical) - Part 2(Hindi)
NR5G Channels Structure(Logical/Transport/Physical) - Part 1(Hindi)
Просмотров 652Год назад
NR5G Channels Structure(Logical/Transport/Physical) - Part 1(Hindi)
NR5G Numerology and Frame structure (Hindi)
Просмотров 1,1 тыс.Год назад
NR5G Numerology and Frame structure (Hindi)
NR5G BWP (Bandwidth Part) concept - Part 3
Просмотров 555Год назад
NR5G BWP (Bandwidth Part) concept - Part 3
NR5G BWP (Bandwidth Part) concept - Part 2
Просмотров 684Год назад
NR5G BWP (Bandwidth Part) concept - Part 2
NR5G BWP (Bandwidth Part) concept - Part 1
Просмотров 1,1 тыс.Год назад
NR5G BWP (Bandwidth Part) concept - Part 1
NR5G BSR (Buffer Status Report) procedure.
Просмотров 1,6 тыс.Год назад
NR5G BSR (Buffer Status Report) procedure.
NR5G Downlink Resource Allocation Types procedure (Hindi)
Просмотров 2,1 тыс.Год назад
NR5G Downlink Resource Allocation Types procedure (Hindi)
Hi.. I want to be in the development side of communication.. Can you please suggest some of the courses that might be helpful for me.. Or any resources
Depends on the exact domain... That shall dictate the choice of language.... Supporting tech and Specifications etc.
both RACH and DCI is generated in MAC. Then why separate transport channel for RACH but no separate Transport Channel for DCI?
I do not have an answer for this which I can claim to be 100% correct BUT I believe it is so because for RACH, Specifications have put an onus on MAC for certain things like choosing RACH pramble and occasion etc and trigger L1 to do rach. On the other hand, DCI information origin is not driven by specifications. It only specifies DCI formats and associate PDCCH with it on resource grid, but has not specified it to be originating in MAC or L1, Leaving this portion to be implementation specific, This makes a lot of sense because it will be closely related to schedular and the scheduling part is completely left for internal implementations. Hence, No Transport channel associated with DCI.
if TAT is set to infinity what that means?
It is a way to kind of disable the time alignment timer implementation. It means UE shall not maintaing a timer running and gNB does no have a compulsion to send TA MAC CE within a time range.
🙏🏼👍very good, beautifully explained 👍🙏🏼 Please provide the link of part-1 in description
Dhanyavaad malik...!! ruclips.net/video/Yh50DrtxPNA/видео.html
You are a great teacher..great content..thanks!
ye to toomuch ho gaya....☺🤗
@shaileshkaushik I have watched a few times..its a quick refresher with all the important details covered..thanks!!!
@@damodarannithya 🙏
Very informative sir , great one ❤❤
Hi Sir Can you upload more videos on LTE and 5G concepts
Will keep doing whatever and whenever possible..
I wish so much these other videos were also in english
I have plans to all in Enlish.. Meanwhle you can try and build your understanding via LTE hangout playlist.. That one is completely in English.
@@shaileshkaushik Hi Shailesh, thanks for responding. I am actually watching the lte hangout, and seems to me so good all your explanations, that I wanted to know if there also were there for 5G. I am from Latin America, with several years working on lte, and only with your videos I have clarified some concepts like never before. We are about to enter now on 5G.
@@LuisGarcia-nn6dr 5G moe or less follows from 4G... Transition should be fine... BTW where in LATIN America ??.... I have had a very long and strong connection with Latin America... One of my most fav places in the whole world..
@@shaileshkaushik Shailesh, I am from Venezuela but working in Mexico. I have had plenty friends from India. I use to work also in USA, several cities, many years ago, and met many friends from India, wonderful people.
@@LuisGarcia-nn6dr Good to Meet you Garcia..
At 11:18, interleave or channel coding jo bola he wo security k liye nahi hoti right. kyuki security k liye to encryption hota he. interleaver and channel coding ka purpose to alag he, right.
depends on what you mean by security... All these methods are meant for the security of data.... When you say encryption ( Ciphering), you mean the security in a way that no one can access the data except sender and receiver, So in a way it is to maintain secrecy... whereas, channel coding etc are the methods that ensure that data transfer over the air happens without errors... here also you're securing the data.. it is like transporting a bone-china set with proper security... you need security so it does not break but it is not really controversial if it is sent in a transparent packaging (i.e. without ciphering). but if you are a 70s bollywood movie smuggler transporting cocaine... it may not need padded packaging, but you would not want everyone to see what is inside... so you would want to cipher here.... So all these procedures are there for securing the data but different manner.
Sings very softly😊😊😊😊
Haye mera betu !!!!🤗🤗
Thanks Shailesh for the nice explanation ,could you please prepare one video on K0,K1 and K2
Thanks..!! That's actually very good topic to be covering. Thanks for suggesting.
Pl make advance level of this topic as well
Very informative content..thanks..can you pls also make a video with details on pss/sss pbch decoding and dmrs
I am finding it hard now to make videos these days... Only taking up sessions and recording those.. If something like this comes up, shall upload..
@shaileshkaushik of course..whenever possible. Taking sessions means you take classes on certain topics which you decide?
@@damodarannithya Not really.. if someone reaches out to me with some specific topic in mind, I try to study and discuss it with them online and record the meeting.. Just like this one.. Although I do charge a pizza..
Nice explanation ...pss/sss pbch decoding and dmrs yes pls
Finally someone is really teaching the concepts the way it should be explained on RUclips. Thanks a lot for sharing. Please keep us posted with such valuable sessions.
Superb Shailesh ji
bht dhanyavaad..!!
Nice explanation
Hi thank you very much for the video. Actually some small details i was looking for which i think u missed Like how gnb knows it is short bsr or long or truncated.. also by the name apply truncated makes sens in long truncated like instead of sending bsr for all lcg id ue will send highest priority lcgs ... but in short bsr how is short bsr truncated? Its only 1 byte does it become less than 1 byte ? If not how why is it called truncated?
Short and short truncated both are 1 byte long PDUs but Short means that UE only needed allocation for 1 LCG, whereas, Short truncated means that UE needed allocation for more than 1 LCG but only had allocation enough to fit in a single byte PDU of BSR CE .
Amazing 😊
Simply wow. Explained in simple language, anyone can understand
thank you very much for your kind words..!!
Nice explanation
Good work and well details provided.
Thank you very much..!!
For what reasons gNB will grant less to UE forbsending data, will this also not increase the latency and how to overcome and ensure tht UE grant proper grant for UL
scheduling is completely implementation dependent and is not governed by specifications... So it is completely implementation dependent how resource allocation is done.. Probably scheduler is keeping fix allocations per UE every TTI, OR Probably whole bandwidth is lesser in that particular BWP than what UE requires.. etc.. All these are theoretical possibilities... but as I said, there's no fix answer as it is all implementation dependent.
Can we prioritise the BSR for logical channel group, or LCG takes BSR in round robbin fashion
Logical channel priority is governed by 38.321 A particular LCG can be prioritised over other but that rigidity may lead to the starvation of lesser prioritised LCG, So that is also taken into account... For details you can refer to below mentioned link: www.sharetechnote.com/html/Handbook_LTE_LoCh_Prioritization.html
How many time regular BSR can be sent after expiry of not receiving DCI UL
only once you can send BSR, because if you don't get grant in response you can't send BSR again because........ you do not have PUSCH allocation for doing so... In such case UE will have to rely on SR procedure..
very well explained , enjoying to watch your video and like the way you have explained , Please keep posting new video on L2 layer . Thanks !!
very very nice explanation , keep it up 👍
Very nice and informative video , really appreciate your effort . Can you please make video on MAC - CE and other MAC or (L2 layer) related topic . Thanks in advance .
Thanks for dropping in .. You can look into LTE hangout series.. there are a few where we dive deeper in MAC concepts.. Or if you have some specific topic in mind..Please let me know..
I am working on 5g. Your videos are really helpful and understanding the topics very easily.
Thanks a lot for dropping in ..
Thanks Shailesh. Its always a treat watching your video. Keep it up
Thank you very much sir..
Well explained !! Thanks
you're very welcomed..!!
We are facing segment faults and memory leak issues 😂😂😂😂
yahi to umra hai bhai ye sab karne ki... karo karo..
Very informative 😄
Thanku mam..
kya baat 😀😀 bahut khub
bht dhanyavaad..!!
Shailesh ji, how can I join these sessions, I am interested, details please @shaileshkaushik
I finished a few over last month and will be uploading these soon. So you may not need a session and can go through these... For something that is not covered in upcoming videos.. Contact me over linked in.. I shall try and schedule one for the topics not already covered.
Thanks for video.🙏👍
It's a pleasure..
Thank you so much sir, very informative and detailed video ❤❤
You're very welcome ..
Good work..boss
Thanku Boss..!!
Whats is diff numeroligy bwp and same numerology bwp ?
Hi, Sorry for the late reply, These are parts of UE capability related to BWP switching via DCI and times. This is a way by which UE indicates that it is capable of switching between BWPs of same numerology or different numerology. For example, if a provider has deployed a cell with 4 bwps which work on different numerology, then only a UE which has indicated a capability of switching between these can be switched based on DCI or timer( Not RRc Signalling switching, that has t be supported by UE) So if such an opportunity arises where UE can not stay oa a particular BWP and needs to be switched but has not indicated the ability throuugh the parameters you have mentioned, In that case UE would be released and re admitted to a different BWP. I hope your question was answered.
Hi Shailesh, thanks for wonderful video. Though i am working as RRC/PDCP engineer for sometime now but i decided to explore physical channel concepts and resource mapping info. I must say ai am addicted to your channel like Games of Thrones. ( PS: I too had worked in Aricent and hughes) :). I would love if you could make a detalied video on SRS- in 5G.
Thank you for dropping in.. Another thanks for dropping such a kind comment.. Glad to meet you..!!
exceptional way of explaining the HARQ. Thanks for great video :)
Thanks a lot..!!
Hi Mr Shailesh, I wish to learn more on NR. New in this technology and into debugging customer issues. Do you provide personal coaching?
If you're around Gurgaon.. We can do some discussions.. I have not been conducting anything officially..
@@themeditationstaytion5074 We can connect over linkedin.
its very informative class. can please make video for NR handover procedure.
That would be an RRC procedure.. I do not have a very deep understanding of RRC. RRC procedures would come here but that would take some time.
Very informative videos..Are you planning to publish any brief vedio related to 5G NR rach procedure …How it is different from LTE RACH?
It is in plans..
Well explained buddy :)
Thank you Sir..!!
Very very good way of teaching ❤
very very nice to get appreciated for that...
👍👍
How you explained the so-called '"complex" concept of 5G shows your understanding of the subject. Great video. Thanks for the upload.
I'm Batman..
Great content