This is good stuff. As a radio engineer of 22 years of course I am supposed to be able to quote this back to someone in my sleep but to know that 5G works pretty much like 4G does comes as a small relief.
Thanks. That is the idea behind this channel to demystify the complexities in 5G and the best way is to relate it to the existing known technologies like LTE/4G :)
Hi the presentation is very crisp and to the point. Could you please do a session related to Carrier Aggregation and also cover the call flows that occur between the 5G UE and the RAN?
@@OurTechPlanet Thanks for your reply .So do we have CQI to MCS mapping for UL as well or not .Like to know how UL CQI and MCS work while UL data transfer .May you share the spec reference if any .
@@ramyaranjanbarik681 No, actually in uplink, there is no CQI index. It is uplink SINR that is directly calculated by the gNB/eNB and then the scheduler assigns an appropriate MCS. So, this is more of a vendor implementation thing.
@@OurTechPlanet Got it .So eNB/gNB used SRS-AS to estimate the UL SINR and NW scheduler assigns an appropriate MCS irrespective of Vendor implementation i guess. The way of measuring the SRS-AS and allocating MCS might be a vendor specific. Thanks for clarifying the doubts.
Hello sir, please come out with a video on cqi, 5qi, mcs in 5g nr. My ex bosstold me that cqi is not there in nr and instead it has 5qi(5g qci) but no cqi. Three different mcs tables are there in 5g but first two are same as in lte and 3rd one is for low SE(urllc). But still I have seen somewhere that nr too has three different cqi tables(again first two are same as was in lte). In one interview also when I told that there is no cqi in nr and it has new terms called 5qi.but the interviewer did not believe me and as a result I got rejected.
For 5G Concepts & Basics, check out the complete playlist below :)
🌐5G Throughput Optimization
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This is good stuff. As a radio engineer of 22 years of course I am supposed to be able to quote this back to someone in my sleep but to know that 5G works pretty much like 4G does comes as a small relief.
Thanks. That is the idea behind this channel to demystify the complexities in 5G and the best way is to relate it to the existing known technologies like LTE/4G :)
First time i am listening to you, you are teacher par excellence, keep up the good work, Thanks
Thanks a lot, always good to hear such great feedback. Do help us spread the word by sharing the content with others :)
@@OurTechPlanet Sure
Great video, exactly what I was looking for !
Glad that it helped :)
Hi the presentation is very crisp and to the point. Could you please do a session related to Carrier Aggregation and also cover the call flows that occur between the 5G UE and the RAN?
Sure, will work on it.
Your all videos are really good...Thanks for your efforts...Please upload videos on all 5G KPI's and their optimization.
Thanks, we will keep doing so :) Meanwhile do share with others as we need support from the community to keep going :)
Also need some SA call flow
This will be added soon!
Very informative. Look forward to more similar videos bro
Thanks, More to come!
Well explained (y). Thanks
Thanks! :)
Is the MCS for the UL transmission configured based on HARQ ACK/NACK sent by gNB ? Thank you
Yes, outer loop works on BLER which is based on ACK/NACK. So, MCS is adjusted based on that.
Great explanation as usual
Thanks again!
Great!!!
Thanks
Excellent explanation... Thank you Sir
You are welcome :)
Need a clear concept for CCE utilization for both 4g & 5G Ina simplest way
Sure, will work on this topic soon!
Very intresting! May be can you also show the parameters that correspond to this,
huawei for example
Thanks. We try to remain vendor agnostic on this channel :)
Thanks!
Glad to help! :)
Nice Video .How about UL data scheduling .Does NW calculate UL Channel quality and schedules grants to UE.
Yup, the NW calculates UL channel quality but grants are usually based on UE's requirement which is indicated by SR or BSR mechanism.
@@OurTechPlanet Thanks for your reply .So do we have CQI to MCS mapping for UL as well or not .Like to know how UL CQI and MCS work while UL data transfer .May you share the spec reference if any .
@@ramyaranjanbarik681 No, actually in uplink, there is no CQI index. It is uplink SINR that is directly calculated by the gNB/eNB and then the scheduler assigns an appropriate MCS. So, this is more of a vendor implementation thing.
@@OurTechPlanet Got it .So eNB/gNB used SRS-AS to estimate the UL SINR and NW scheduler assigns an appropriate MCS irrespective of Vendor implementation i guess. The way of measuring the SRS-AS and allocating MCS might be a vendor specific. Thanks for clarifying the doubts.
Subscribed
Thanks
Awesome ali
Thanks :)
Awesome video
Thanks Pratik!
Great stuff!
Thanks Pawan! :)
Hello sir, please come out with a video on cqi, 5qi, mcs in 5g nr. My ex bosstold me that cqi is not there in nr and instead it has 5qi(5g qci) but no cqi. Three different mcs tables are there in 5g but first two are same as in lte and 3rd one is for low SE(urllc). But still I have seen somewhere that nr too has three different cqi tables(again first two are same as was in lte). In one interview also when I told that there is no cqi in nr and it has new terms called 5qi.but the interviewer did not believe me and as a result I got rejected.
5G has CQI table as well , just like LTE.
QCI is a different thing, it is Quality Of Service and in 5G , the equivalent of QCI is called 5QI
Brilliant
Thanks!
very well explained
Thanks Shoaib :)