Network Slice Assignment via Unique Transaction Identifier

The patent segments the network management functions by introducing dedicated Network Slice Selection Functions (NSSF) that operate independently to handle slice selection based on unique transaction identifiers. This segmentation allows the core network to manage multiple network slices without increasing terminal device complexity, as the slicing logic is distributed to network-side functions rather than embedded in each device.

The patent introduces unique transaction identifiers as an intermediary between the terminal device and the network core functions. These identifiers serve as a privacy-protecting layer that enables service customization without exposing sensitive user information. The NSSF acts as a mediator that processes these identifiers to determine appropriate network slice selection, thereby simplifying the overall information processing architecture while maintaining privacy.

The patent implements universal network functions that can handle multiple service types and customization requirements. The NSSF is designed to work with various unique transaction identifier formats and service requirements, while the Policy Control Function (PCF) provides unified policy management across different network slices. This multi-functionality approach allows the network architecture to handle diverse service customization needs without proportionally increasing complexity, as these functions serve multiple purposes simultaneously.