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Control and User Plane Separation


Refers to the complete separation between control plane functions (which take care of the user connection management, defining QoS policies, performing user authentication, etc.) and user plane functions (which deal with data traffic forwarding).

It was first introduced in 3GPP’s Release 14 at the packet data gateway level, concerning the 4G Evolved Packet Core (mobile core for 4G networks) and introduced for 5G in 3GPP’s Release 15.

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