From the course: 5G Architecture, Design, Protocols, Evolution, and Deployment

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Synchronization signal block

Synchronization signal block

From the course: 5G Architecture, Design, Protocols, Evolution, and Deployment

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Synchronization signal block

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(bright music) - [Instructor] So in the previous lecture, we learned about the different downlink channels that are crucial for initial access, such as SSS and PBCH. And those channels and signals together form a synchronization signal block where we are focusing on those different channels and signals precisely which is making the SSP. So looking at the allocation here, we have the PSS, which is allocated, and PSS are used for cell-search procedure along with the SSS. We talked about it. So we have PSS and SSS. Together, they will be used for cell-search procedure and cell identification. PSS uses approximately 126 sub-carriers spanning from around sub-carrier 56 to 182 in the frequency domain within the frame. So we set, like, their location is fixed so that UE can decode them and can access to the network appropriately. Now, these signals are continuously transmitted by the base station, typically every 20 milliseconds, so that if the UI misses them initially, it will be having the…

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