5G NR Initial Access Process, SSB Beam and SSB Beam Sweeping #5G #4G #telecom

This video is about:
5G Initial Access Process or
5G Intial Access Procedure
5G NR Synchronization Process
Primary Synchronization Signal (PSS) and Secondary Synchrinization Signal (SSS) Detection
Master Information Block (MIB) Decoding
Physical Broadcast Channel (PBCH) Payload Decoding
Frequency domain and time domain of Synchronization Signal Block (SSB)
SS/PBCH Block
Synchronization Signal Physical Broadcast Channel Block
SSB Burst and SSB Periodicity
SSB Patterns A to G
Synchronization Raster (SS Raster)
Mid band SSB Beam Sweeping
High band SSB Beam Sweeping
mmwave or mm wave
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Frequency Range 1 (FR1), Sub 6 GHz, between 3 GHz and 6 GHz or 7 GHz
Frequency Range 2 (FR2), FR2-1 , FR2-2,
5G NR 3 MHz Channel Bandwidth
System Information Block Type 1(SIB1)
gNB, 5G BS, 5G Base Station
KSSB (SSB Subcarrier Offset)
PRB (Physical Resource Block)
RB (Resource Block)
5G NR Resource Grid
Half frame Index , Half frame, Half of a radio frame, First half frame , First radio Half frame, Second half frame , Second radio half frame
PDDCH-ConfogSIB1
SFN (System Frame Number)
Initial Cell Search
SSB Pattern
SSB Index or
SSB Beam Index
64 SSBs
8 SSBs
GSCN (Global Synchronization Channel Number)
NR-ARFCN (New Radio Absolute Frquency Channel Number)
SSB Frequency Center
Common Resource Grid
Common Resource Block (CRB)
Point A, PointA
Offset To Point A (offsetToPointA)
Subcarrier Spacing (SCS)
Subcarrier Spacing Common
SCS of 15 KHz, 30 KHz, 120 KHz, 240 KHz, 480 KHz, 960 KHz
Default SCS for Synchronization
n263 new NR band , Unlicensed band
3GPP Releae 17
3GPP Releae 18

[PeymanZ-lvkg]

Thank you Mr. Rahim
Very Informative.
Looking forward to see more of your content.

Regards.

[千里之行-zr]

Thank you for the lecture. I noticed a minor inaccuracy at 3:47 : In NCP and ECP, we have 7 and 6 OFDM symbols per slot, respectively. You might have been referring to a subframe.

[Zahid_deeds]

Question can asked in an interview:
Why there're only 6 bits MSB in MIB for SFN or Why split of 6 bits and 4 bits?
In 4G, it is 8 bit and 2 bit split?

[ashishjain]

Great Video Rahim. I am sure it takes huge time to create such good content.

One query, assuming 5 widebeams in one 5G mmwave RAN, UE performs RACH on SSB index 4(assume), then which all parameters(e.g. slot, SFN, frequency PRBs etc.) are considered by RAN to conclude on which beam UE is performing RACH. Actually here I want to understand in details about SSB index and its association with RACH occasion. Its interesting how RAN knows from which beam UE is performing RACH.

Is SFN and Slot plays important role for concluding the best widebeam UE is attempting from? Thanks !!

[RahimNavaei]

✅ To transmit 64 SSBs using SSB Pattern F (Case F, SCS-480 KHz, FR2-2, n263), it takes approximately 1ms, whereas with SSB Pattern G (Case G, SCS-960 KHz, FR2-2, n263), this duration is less than 0.5 ms.
by Rahim Navaei