Hi experts,
In 5G IAB node network, will there be any change in UE protocol stack?
I mean are there new protocols defined for UEs connecting to IAB node?
IAB works on higher layers above RLC.
No change on UE protocol.
1 Like
Thanks. That means UE won’t be knowing whether it is connected to IAB node or IAB donor.
It’s all same for a UE?
1 Like
Yes, IAB is transparent to UE.
1 Like
38.401. It mentions another layer BAP under MT.
Which seems to be a change at UE.
Yes but this is between gnodeB to gNodeb.
It does not involve UEs.
IAB is a transmission feature that occupies radio resources. It has nothing to do with UEs.
1 Like
Thanks @RFSpecialist. I guess this image explains it well.
I misunderstood IAB-MT as UE, where it is a mobile terminal for IAB-Donar which gets the data for IAB-DU.
I have one question related to this topic. How is the resources shared b/w the donor DU and other DUs (which share the same CU). Is each DU assigned resources separately ? Or do they share some RBs from the total RB assigned to Donor CU ?
1 Like