5G gNodeB Control Plane Protocol Stack

5G control plane ensures every device stays connected.

It adjusts connections based on load and demand.

Here’s what the gNB typically does:

  • Processes signals for quick responses.
  • Allocates resources to match bandwidth demand.
  • Routes data ensures smooth data flow.
  • Load balance maintains steady performance.
  • Interference management limits disruptions.

There are different protocols running at gNB.

Protocols stack between UE and gNB:

  • L1
  • MAC
  • RLC
  • PDCP
  • RRC

Protocols stack between gNB and AMF:

  • L1
  • L2
  • IP
  • SCTP
  • NGAP

In short, each part does its job.

Thus, creating the seamless experience we expect from 5G.

Thanks for reading.

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