When a UE enters Idle mode, the network releases radio resources and the UE enters power saving mode. When the UE wants to send data (Uplink) the UE just tells the network “hey I want to send something” and away it goes, nice and simple. But when the network wants to send data to the … Continue reading Packet Buffering in the UPF →

I was recently looking for a field I could use in PFCP to denote the VRF / Network Segment to be used, and initially thought Network Instance would be perfect for this. It’s not. Network Instance is kinda preferred over the APN/DNN for decisions, for example a Packet Detection Rule (PDR) does not give a … Continue reading Network Instance in PFCP →