Local Break-Out Selective Copying for Backhaul Efficiency

The patent extracts only the necessary control parameters and selected traffic data from the local break-out traffic flow, rather than copying all traffic. The LBO function selectively copies data based on control parameters received from the core network, extracting only what is needed for lawful interception while leaving the majority of traffic to be processed locally without backhaul transmission.

The patent segments the traffic handling into two paths: locally processed traffic that does not require core network intervention, and selectively copied traffic that is forwarded to the core network for lawful interception. This segmentation allows the system to maintain low backhaul load while preserving complete interception capability for required traffic flows.

The patent introduces a copying mechanism as an intermediary between the LBO function and the core network. The LBO function copies relevant traffic data and forwards it to the core network, allowing core network functionalities such as Legal Intercept to act on the copied traffic without requiring all traffic to route through the core network, thus maintaining both low backhaul load and full core network functionality.

The patent uses selective copying of traffic data from the LBO function to the core network. Instead of routing all traffic through the core network, the system creates copies of specific traffic flows that require core network processing, allowing functionalities like Legal Intercept to operate on these copies while the original traffic continues to flow locally with minimal backhaul load.