This Video Discusses in details about LTE attach Call flow : Frequency Scanning PSS and SSS decoding LTE Frame location of PSS and SSS MIB Decoding Log analysis
Note: It is a common misconception that the MIB has a parameter for the number of transmit antennas which is not correct. The MIB has a CRC however, which is scrambled with one of three sequences which maps to the number of antennas used in the cell. So, when the UE calculates the CRC from the decoded MIB it compares against each of the three descrambled CRCs looking for a match and hence discovers the number of antennas.
Hi expert one quick question with you can we have any situation where we will be reporting bsr index 63 for all 3 lcg ? if yes please specify the scenario? and is there any concept which allow all 3 LCG to fill bsr index 63 ?
What will be the pss and sss position in case of ECP as there ar wonky 6 symbols per slot. In case of NCP it is 7th symbol of first slots of N0 and N5 subframes for TDD. But in case of ecp there is no 7th symbol. So for ECP would it be 6th symbols of first slots of N0 and N5 subframes for TDF
Hi, can u please send your mail id. I just wanted all the class videos to refer in sequence. I could find only few like lte attach part 1, part 2, part 3 which is uploaded 9 months ago. I want other class videos too.
PBCH (Physical Broadcast Channe A common query is why the PBCH contains the PHICH configuration. PBCH is to be decoded in the beginning so the UE would not be expecting any HARQ ACKs/NACKs so why should PBCH transmit PHICH configuration. The UE needs to know the PDCCH location in the 1st OFDM symbol and to de-interleave the 1st OFDM symbol, it needs to know the locations of PHICH, PCFICH and RS (Reference Signals). Now, the locations of the RS and the PCFICH are calculated by using the PCI (Physical Cell ID - calculated from the S-SS and P-SS which are decoded before the PBCH) and since the UE already knows the PCI before it starts decoding the PBCH so it knows the locations of the RS and the PCFICH. However, it still needs to know the locations of the PHICH groups so that has to be transmitted in the PBCH. Once, the UE has the knowledge about the PHICH, PCFICH and RS locations then it knows that the remaining REs belong to PDCCH.
Sir PHICH configuration in terms of Ng value indicates the net REs for PHICH. but as long as UE doesn't know the exact location of PHICH REs how can it calculate the rest PDCCH REs?
Thanks for very Nice Explanation...
Your videos are amazing. Sir please make more videos on protocol testing..we are waiting eagerly seen no videos from so many days..
Note: It is a common misconception that the MIB has a parameter for the number of transmit antennas which is not correct. The MIB has a CRC however, which is scrambled with one of three sequences which maps to the number of antennas used in the cell. So, when the UE calculates the CRC from the decoded MIB it compares against each of the three descrambled CRCs looking for a match and hence discovers the number of antennas.
Thank you🙏
Great!!!
Hi expert one quick question with you
can we have any situation where we will be reporting bsr index 63 for all 3 lcg ?
if yes please specify the scenario?
and is there any concept which allow all 3 LCG to fill bsr index 63 ?
👌👌👌
Well explianed
What will be the pss and sss position in case of ECP as there ar wonky 6 symbols per slot.
In case of NCP it is 7th symbol of first slots of N0 and N5 subframes for TDD. But in case of ecp there is no 7th symbol. So for ECP would it be 6th symbols of first slots of N0 and N5 subframes for TDF
Hi ,,where can we get protocol stack initialization in your videos
Nice
Sir please explain Volte call flow and architecture
Hi do you know about NMM flow in LTE
very crisp video.. please do watch it..
Can i get videos before this lecture?
Can I get before video, please
next class link...of this video pls..
Hi, can u please send your mail id. I just wanted all the class videos to refer in sequence. I could find only few like lte attach part 1, part 2, part 3 which is uploaded 9 months ago. I want other class videos too.
sir Please tell me why PHICH in MIB...?
PBCH (Physical Broadcast Channe
A common query is why the PBCH contains the PHICH configuration. PBCH is to be decoded in the beginning so the UE would not be expecting any HARQ ACKs/NACKs so why should PBCH transmit PHICH configuration. The UE needs to know the PDCCH location in the 1st OFDM symbol and to de-interleave the 1st OFDM symbol, it needs to know the locations of PHICH, PCFICH and RS (Reference Signals). Now, the locations of the RS and the PCFICH are calculated by using the PCI (Physical Cell ID - calculated from the S-SS and P-SS which are decoded before the PBCH) and since the UE already knows the PCI before it starts decoding the PBCH so it knows the locations of the RS and the PCFICH. However, it still needs to know the locations of the PHICH groups so that has to be transmitted in the PBCH. Once, the UE has the knowledge about the PHICH, PCFICH and RS locations then it knows that the remaining REs belong to PDCCH.
Thanks bro..
Sir PHICH configuration in terms of Ng value indicates the net REs for PHICH.
but as long as UE doesn't know the exact location of PHICH REs how can it calculate the rest PDCCH REs?
Sir want to join your classes
Why SIB information transmitted in 80ms? What is the location of SIB?
Only SIB 1 has the periodicity of 80ms as per 3gpp standards.
Other SIBs information is there in SIB 1 (SIB scheduling infolist IE)
@@5Gdiscussions Is location of SIB1 is specified or not?