5G RLC modes

Most networks misuse 5G RLC modes.

Here’s how to choose the right one.

5G RLC operates in three modes.

  1. Transparent.
  2. Acknowledged.
  3. Unacknowledged.

Each is unique.

Each has a purpose.

  • Transparent Mode is minimal.

    • It skips error correction.
    • It skips segmentation too.
    • Data moves quickly but lacks protection.
  • Unacknowledged Mode is better.

    • It segments and reassembles data.
    • It’s faster than Acknowledged Mode.
    • But it skips error correction.
  • Acknowledged Mode is robust.

    • Error correction through ARQ ensures reliability.
    • Protocol errors? Fixed.
    • Data reassembly? Done.

Now, here’s a common mistake I’ve seen.
People assume all layers ensure reliability.

They DON’T.

Reliability starts here, at RLC.

So, when designing a 5G network, ask yourself:

  • Is speed more critical than reliability?
  • Can your system tolerate retransmissions?
  • Does segmentation improve data flow for your use case?

This is where decisions matter most.

Use them with intent.

Thanks for reading.

LinkedIn: :point_down:

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