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Everything about PFCP

3GPP protocol

Packet Forwarding Control Protocol (PFCP) is a 3GPP protocol used on the Sx/N4 interface between the control plane and the user plane function, specified in TS 29.244. It is one of the main protocols introduced in the 5G Next Generation Mobile Core Network, but is also used in the 4G/LTE EPC to implement Control and User Plane Separation (CUPS). PFCP and the associated interfaces seek to formalize the interactions between different types of functional elements used in the Mobile Core Networks as deployed by most operators providing 4G, as well as 5G, services to mobile subscribers. These two types of components are:The Control Plane (CP) functional elements, handling mostly signaling procedures The User-data Plane (UP) functional elements, handling mostly packet forwarding, based on rules set by the CP elements. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: PFCPA 5-minute orientation
  2. Skim a recent paper: Detection Model for 5G Core PFCP DDoS Attacks Based on Sin-Cos-bIAVOAInfluential work since 2022
  3. Read the landmark paper: Ultra low dielectric, self-cleansing and highly oleophobic POSS-PFCP aryl ether polymer compositesCited 61 times
  4. Go sideways: System Architecture EvolutionA closely related topic
  5. Go sideways: GPRS Tunnelling ProtocolA closely related topic

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🏆 Landmark papers (most cited)

🆕 Influential since 2022

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