5G DL Reference Signal: Demodulation Reference Signal - DMRS

This Video will clarify all the basic understanding regarding 5G DL DMRS for PDSCH different configurations, PBCH & PDCCH, and it will also explain most of the use cases of PDSCH-DMRS-related parameters. The below is covered in this video.
Content:
1- DMRS for PDSCH Configurations and main parameters
2- DMRS for PBCH
3- DMRS for PDCCH
Studying Source:
5G NR in Bullets
3GPP Reference TS 38.211~38.214 & TS 38.331

[@hamzahabdulhadi5218]

Adawi, your session is excellent and very informative! I came across it while searching for specific information about SRS hopping, and it helped clear up some doubts :) , keep it up mate

[@mohamedeladawiashour]

Thanks a lot, Hamza 🙏

[@keepursmile000]

Thanks a lot,we are always waiting for your new videos

[@mohamedeladawiashour]

I am happy to hear that; i will ensure to share more. Thanks a lot

[@menaharby754]

Very clear, thanks alot

[@mohamedeladawiashour]

Thanks a lot, Mena, I am grateful that you keep sharing your feedback

[@VipinKumar-dv7hy]

Very informative.....very good effort

[@mohamedeladawiashour]

Thanks a lot vipin

[@ahmedelbayyar3377]

Very good , thanks a lot

[@mohamedeladawiashour]

Thank you 🙏

[@karelrocejdl60]

When speaking about "ports" and users I think it is more appropriate to explain it via layers, because especially in case of MU-MIMO we are not mapping ports to user but a layer (MaMIMO 5G). SSS is Secondary Synchronization Signal.

[@mohamedeladawiashour]

Yes; you fully right; this point for ports and layer mapping need more clarification; even myself i need to read and try to understand it more

[@adityapadhi4923]

NIce video. Do you have any video for how does UE acquire MIB and SIB from physical layer point of view ?

[@mohamedeladawiashour]

Thanks; i didn’t get the question but i have the below video for the steps followed by the UE to acquire MIB and SIB during the initial access
th-cam.com/video/4ore-5a0Mow/w-d-xo.htmlsi=XVQDIBC46CGvf2lJ

[@georgioskarouzos7418]

Very useful info Mohamed. Is it possible DMRS-AdditionalPos to be used for MU-MIMO users? DMRS-AdditionalPos increases also the number of antenna ports. Is it correct ? Thank you

[@mohamedeladawiashour]

Good Question, Georgi; I still did not find any explicit information and an answer to your question. I have read in some documents that additional DMRs improved MU-MIMO Performance. Still, honestly, I don't know whether it increases the number of antenna ports, but I believe it increases the number of antenna ports; I will let you know if I get a direct answer to this question. And please also do the same in case you found it as well.

[@georgioskarouzos7418]

@@mohamedeladawiashour Thank you Mohamed