Wireless Explained

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@jimrox-i5v 7 күн бұрын

this is so succinct

@gunjangosain8517 10 күн бұрын

A humble request: Please create video on PDCCH also.

@gunjangosain8517 11 күн бұрын

Your videos are concise and explain concepts very well. Please create more videos on topics such as HARQ (in DL) in 5G, beamforming, and other features that distinguish 5G from its predecessors.

@gunjangosain8517 11 күн бұрын

Dear @WirelessExplained, would it be possible for you to make an informatiove video on HARQcprocess overview, including ACK/NACK.

@gamingandmusic9217 16 күн бұрын

We want more videos from your channel

@gunjangosain8517 20 күн бұрын

Choosing another zadoff-chu sequence, to avoid collision.

@shibincheraniyil 21 күн бұрын

👍👍

@Catherine-x9m 24 күн бұрын

Why no people watching this!!! It's amazing!!

@Catherine-x9m 24 күн бұрын

Top!

@sukshithshetty8349 27 күн бұрын

How does UE detect in which FREQ range are SSB transmitted ????

@WirelessExplained 21 күн бұрын

1:34 In 5G, 3GPP has defined a set of frequencies for SSB transmission. So, US has to scan all those candidate frequencies. Refer 3GPP TS 38.213.

@WijthaGayan 28 күн бұрын

Such this video is gold mind ❤

@juvairia7664 Ай бұрын

Very informative

@marck3122 Ай бұрын

thanks dude for your explanation great effort to teach this topic

@nafisfaisal5817 Ай бұрын

This is exactly what I was looking for. Thanks a lot

@JoeGreens-g7p Ай бұрын

we want more videos fron you.

@WirelessExplained 21 күн бұрын

Yes, I’m working on several new videos that will be available soon.

@JoeGreens-g7p Ай бұрын

great

@gamingandmusic9217 2 ай бұрын

Is One Transport Block = number of bits sent in one OFDM symbol duration ?

@WirelessExplained 21 күн бұрын

1 transport block is total bits send to a UE within a slot, i.e., 14 symbols. BS can send data to multiple UEs within a slot, one transport block per UE.

@gamingandmusic9217 20 күн бұрын

@WirelessExplained Thanks and respect from India.

@stream191973 2 ай бұрын

excellent

@mangaldeepsahoo7078 2 ай бұрын

Excellent explanation of Search Space, CORESET and PDCCH

@gunjangosain8517 3 ай бұрын

@02:30, it says, UE sends the message after time offset?! What exactly is time offset?

@WirelessExplained 21 күн бұрын

Time offset is to ensure that BS receives RACH within an uplink slot, not in any downlink slot. This is because, 4G or 5G doesn't support full duplex.

@BettyThompson-o2y 3 ай бұрын

Brent Pass

@theoryandapplication7197 3 ай бұрын

thank you very much

@千里之行-z5r 3 ай бұрын

thank you sir

@mukundachlerkar8021 4 ай бұрын

Great, superb, nice perception

@thepromisedlan 4 ай бұрын

Thanks for the video, it was very clear! I have a question, does this mean there is a miniscule chance of two UEs ending up with the same C-RNTI, if the selected ue-identity is also the same?

@WirelessExplained 21 күн бұрын

Correct. You got it. There is a slight chance for RNTI collision, which may lead to link failure and result in re-attempting the entire RACH procedure.

@ericmrozinski6143 4 ай бұрын

Indeed, the best explanation of the concept around PDCCH scheduling I have seen anywhere, including the '5G bible' "5G New Radio In Bullets". Thank you for your effort!

@멍멍이-i3n 4 ай бұрын

please more video please

@WirelessExplained 21 күн бұрын

Yes, I plan to release more videos.

@jeffoh4793 5 ай бұрын

great explanation but the AI voice sounds a little off dont ya think? lol

@WirelessExplained 21 күн бұрын

Yes, I agree. I changed the voice in my later videos.

@sukshithshetty8349 5 ай бұрын

I didnt understand Interleaving and REG Bundle. Why is this neccessary when we already already know CCE is made of 6 REs? and Why is interleaving and cyclic shift used ?

@WirelessExplained 21 күн бұрын

Interleaving improves robustness against frequency-selective fading (i.e., diversity gain).

@sukshithshetty8349 5 ай бұрын

When and where does RA-RNTI comes into picture???

@WirelessExplained 21 күн бұрын

RACH procedure is used for multiple purposes. For initial connection, RA-RNTI is used, which is a temporary identifier for the UE. For reconnection purposes, C-RNTI is used (as shown in the video).

@chandrakanthmangali5456 6 ай бұрын

Best Explanation for CORESET

@thingstoknow3641 6 ай бұрын

Thank you, can you please let us know how to calculate Uplink TB size in 5G ?

@WirelessExplained 21 күн бұрын

BS asks UE to transmit using 'N' RBs with 'M' MCS. UE computes TB size from 'N' and 'M', similar to downlink TB size computation.

@bgjay6865 7 ай бұрын

It's awesome!!!

@yagzyalcntas553 7 ай бұрын

AMAZING

@amitsardanayt 7 ай бұрын

Very clear video with minimum time wastage. Loved it

@ayushibhatt9518 7 ай бұрын

Thanks for such a brief video. Can you also make a separate video based on Zadoff Chu sequence, that would be incredibly helpful.

@kirankumaryakkala 7 ай бұрын

Appreciate your presentation. The topic is neatly explained in a simplest way. I saw very few videos. Could you please cover more topics. Thanks

@WirelessExplained 21 күн бұрын

Yes, I’m working on more videos.

@Orig_Xi_jinping_from_china 8 ай бұрын

Can anyone tell which 3gpp papers should I refer to understand mac layer ?

@WirelessExplained 21 күн бұрын

Refer 3GPP TS 38.213 - NR; Physical Layer Procedures for Control

@sukshithshetty8349 8 ай бұрын

What is the use of Timing Advance?

@WirelessExplained 7 ай бұрын

BS has to receive uplink signal from all UEs at the same time, i.e., time synchronized. So, far-away UEs transmit earlier than nearby UEs, so that all signals reach BS at the same time.

@sukshithshetty8349 8 ай бұрын

First Question, how will one UE know which Zad Off Chu seq was selected by other UE??

@WirelessExplained 7 ай бұрын

UE will not know. In contention based RACH procedure, a UE randomly choose a Zadoff Chu sequence, without knowing if any other UE also has chosen the same.