Does we have MAC CE in 5G as well for only PDCCH DCI there?

ankgitm · February 8, 2021, 3:00am

Hi 5G Experts,
Does we have MAC CE in 5G as well for only PDCCH DCI there?
I am not able to find mac CE like 4G we have…

marcengo · March 28, 2021, 8:28pm

The purpose and function of NR MAC CE is almost same as LTE MAC CE.

Here you can find a good explanation:

ankgitm · March 28, 2021, 8:31pm

Any idea how MAC CE Tx to UE and eNodeB.
I think using PDSCH, PUSCH channel. Is it correct?

samohiuddin · March 28, 2021, 8:33pm

MAC CE is sent on PDSCH channel.

ankgitm · March 28, 2021, 8:33pm

Thanks. And for UL MAC CE, is it PUSCH?

RFSpecialist · March 28, 2021, 8:34pm

I have not heard of UL MAC CE.

ankgitm · March 28, 2021, 8:34pm

RFSpecialist · March 28, 2021, 8:35pm

But are those MAC CE?

ankgitm · March 28, 2021, 8:35pm

Yes, MAC CE.

samohiuddin · March 28, 2021, 8:36pm

Yes, UL MAC CE are send on UL SCH which maps to PUSCH channel.

Yes, BSR is a MAC CE.