Roaming

[pharaoh]

Hi,

Anyone has info on national roaming of 4g/5g networks?

Any real life implemtation of 4G national roaming -- where within the same coverage area, the subscribers can roaming to multiple operators? Is the roaming implemented at RAN or core, and how does the UE decide which network to use? I heard Etisalat implemented?

Thanks.

[dennielone]

Hi Pharaoh,

You can read some plmn selection or nas 3GPP specification for detail.