Can same DU support two different PRACHs like PRACH format0 and PRACH format b4?

Ryan · December 18, 2023, 5:42pm

Hi all 5G Experts.

Which lets say having UE1 sending prachformat0 and UE2 sending formatb4 the DU shall be able to decode both properly?

SA deployment.

Is it possible?

tjoo · December 18, 2023, 5:45pm

I don’t think it’s feasible.

FYI, 5G SA nation wide MNO prach-ConfigurationIndex, for outdoor(macro/micro) → 203 (format C2), inbuilding small cell → 148 (format B4).

Manoj_deka · December 18, 2023, 5:45pm

No, it is not possible.

1 DU support only 1 PF.

Ryan · December 18, 2023, 5:46pm

Got you!

So by two DUs within same CU, I can have 2 PF which each DU to have 1 PF?

Manoj_deka · December 18, 2023, 5:46pm

Yes, correct.

Ryan · December 18, 2023, 5:47pm

Two DUs means like two cells.

Im trying to check is that DU (PHY) if able to decode concurrent different PRACH formats with no decoding issues.

So, is it impossible to have this scenario?

susbose10 · December 18, 2023, 5:48pm

I don’t think it’s possible.

One board config can have only 1 Prachconfig.