Usage Reporting Rules (URRs) are a foundational component of modern Control and User Plane Separation (CUPS) architecture, used to measure, track, and report subscriber traffic data usage. In traditional telecom core architectures, the packet gateways (like PGW or SGW) handled both signaling and data routing within the same node. Under the 3GPP CUPS standard (introduced in Release 14), these functions are split: the Control Plane (CP) manages signaling and rules, while the User Plane (UP) processes high-speed data packets independently.
Because the UP handles the data but does not directly talk to billing or policy systems (like OCS or PCRF), the CP must instruct it exactly how to track bytes and time using URRs sent over the PFCP (Packet Forwarding Control Protocol) interface. Core Mechanics of URRs
URRs operate in harmony with other Packet Forwarding Control Protocol (PFCP) session-related rules to regulate how subscriber data is handled and accounted for: Control and User Plane Separation of EPC nodes (CUPS)
Leave a Reply