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.

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.

Dhanyavaad malik...!! kzbin.info/www/bejne/j5mYYXeoqd2DhKM

ye to toomuch ho gaya....☺🤗

@shaileshkaushik I have watched a few times..its a quick refresher with all the important details covered..thanks!!!

@@damodarannithya 🙏

Will keep doing whatever and whenever possible..

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..

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.

Haye mera betu !!!!🤗🤗

Thanks..!! That's actually very good topic to be covering. Thanks for suggesting.

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

bht dhanyavaad..!!

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 .

thank you very much for your kind words..!!

Thank you very much..!!

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.

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

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..

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..

Thanks a lot for dropping in ..

Thank you very much sir..

you're very welcomed..!!

yahi to umra hai bhai ye sab karne ki... karo karo..

Thanku mam..

bht dhanyavaad..!!

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.

It's a pleasure..

You're very welcome ..

Thanku Boss..!!

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.

Thank you for dropping in.. Another thanks for dropping such a kind comment.. Glad to meet you..!!

Thanks a lot..!!

If you're around Gurgaon.. We can do some discussions.. I have not been conducting anything officially..

@@themeditationstaytion5074 We can connect over linkedin.

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.

It is in plans..

Thank you Sir..!!

very very nice to get appreciated for that...

I'm Batman..