What is the use if single ENB serves multiple cells?Instead it increases ENB loads?

Question

Suppose a eNB is shared between two operators so can he have multiple tracking area code ?

Answer 1

When an eNodeB supports more cells, it results less no. of users per cell but at the same time users get more radio resources compare to single cell. More radio resources means high data rate and better user experience. Another use case is when an eNodeB has multi cells with different frequencies, it can support carrier aggregation. Carrier aggregation is a concept by which eNodeB can allocate more radio resource to a user if UE supports CA.