Replication Handling Function Rules for Multi-Access Traffic Redundancy
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Solution Overview
Problem
There is a need for improved control systems in communication networks to optimize complex network elements and manage replication-based redundancy mechanisms effectively.
Innovation Solution
The apparatus and methods provide mechanisms for determining and coordinating replication rules for user traffic, including traffic descriptors, application identifiers, and failure handling, to manage redundancy in communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If replication-based redundancy mechanism is implemented across multiple access technologies, then reliability of data transmission is improved, but device complexity and network complexity increase
Solution Approach 1:
The patent introduces a Replication Handling Function (RHF) as an intermediary component that centralizes the complex logic of traffic replication and elimination. The RHF receives user plane packets, determines replication rules, and coordinates with multiple access technologies (3GPP and non-3GPP accesses) to ensure reliable delivery without burdening individual network elements with complex decision-making logic.
Solution Approach 2:
The patent segments the replication handling functionality into distinct modular components: the RHF for rule-based decision making, User Plane Functions (UPFs) for packet forwarding, and separate 3GPP and non-3GPP access networks. This segmentation allows each component to perform its specific function independently, reducing overall system complexity while maintaining reliability.
2Adaptability or versatility
If dynamic replication rules are implemented across diverse access networks, then adaptability of traffic management is improved, but control system complexity increases
Solution Approach 1:
The patent implements dynamic replication rules that can be adjusted in real-time based on network conditions, traffic characteristics, and service requirements. The RHF receives and processes replication rules that specify different behaviors for different traffic flows, access types, and network states, enabling flexible adaptation without hardcoding complex decision logic in each network element.
Solution Approach 2:
The RHF serves as a universal control point that handles replication decisions for multiple access technologies (3GPP and non-3GPP) and multiple User Plane Functions through a single rule-based interface. This multi-functional approach simplifies the control system by providing a unified mechanism that adapts to diverse scenarios without requiring separate control logic for each access type.
3Productivity
If multiple PDU sessions are replicated across multiple UEs, then productivity of data transmission is improved, but measurement precision and control difficulty increase
Solution Approach 1:
The patent creates packet copies (replicas) that are distributed across multiple User Equipments and access networks to increase throughput. The Replication Handling Function generates identical copies of user plane packets and routes them through different PDU sessions and UEs, enabling parallel transmission that improves productivity while maintaining data integrity.
Solution Approach 2:
The patent implements feedback mechanisms where the RHF monitors the status of replicated packets and can adjust replication behavior based on delivery success. The system tracks which packets have been successfully delivered and uses this information to eliminate redundant copies, providing control over the complexity of managing multiple replicated streams.
Data Source
AI summary
There is provided a method for an apparatus for a network function, the apparatus for the network function, and a computer program for the apparatus, that causes the apparatus to: receive an indication that a first user equipment and/or a first user plane function configured to transmit first user traffic is associated with a first replication handling function, the first replication handling function being configurable to coordinate at least one replication-based redundancy mechanism performed on at least part of said first user traffic; determine a first set of replication rules for use by the first replication handling function determining when the at least one replication-based redundancy mechanism is performed on at least part of said first user traffic; and cause the first set of replication rules to be provided to the first replication handling function.