5G Deployment Option-8/8a

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Option 8/8a:

In this option, the network will use the EPC core i.e. 4G Core. For radio access, both LTE and NR will be used. Control signaling will be routed through the NR RAN.

This Option is not very likely, since an operator's LTE coverage is likely (at least initially) to be larger than their NR coverage. So there is no sense in routing signaling via the NR RAN. 

The difference between Options 8 and 8a is based on whether the user plane data is sent to LTE directly or via the NR RAN.


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