LTE: What eNodeB does after receiving S1 setup response ?

Question

In S1-Setup Request message, eNodeB tells max # (6) of broad casted PLMNs. In S1-Setup response message, MME responds back to eNodeB with maxnoofPLMNsPerMME(32) IE. I am not able to find the reason that why maxnoofPLMNsPerMME is 32 even eNodeB can broadcast maxium of 6 ?

Answer 1

As MME has one to many relationship with eNBs. Consider a scenario of RAN sharing where MME1 supports multiple(say 16) PLMN . (say PLMN1, PLMN2,....PLMN16).
There are two eNBs (say eNB1 and eNB2) where eNB1 supports few PLMN (say PLMN1-8) and eNB2 supports other few PLMN(say PLMN9-16). Hence in this scenario its justified.

Hope this make sense