Single Registration in 5G Network

In Single Registration mobile network, the UE registers only with one network, either the 4G network, or the 5G network.

This means that the UE establishes a connection and exchanges data through either the 5G or the 4G network, but not both simultaneously as what happens in "Dual Registration".

As a result, Handovers between the 5G and 4G networks require the UE to re-register with the new network.

This approach is simpler to implement and may be more suitable for early 5G deployments.