5G Data Traffic Rerouting Across Internet Service Chains
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Solution Overview
Problem
Existing 5G communication networks experience disruptions in Internet service connectivity due to component failures, requiring users to establish new sessions, which can cause service interruptions.
Innovation Solution
Implementing an Internet service disruption routing module to detect component failures in the first Internet service chain, select an alternate component from a second service chain, and redirect data traffic using the radio access network (RAN) to maintain seamless connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network uses a single Internet service chain for data traffic routing, then the network structure is simple, but the reliability of Internet service connectivity deteriorates when component failures occur
Solution Approach 1:
The patent combines multiple Internet service chains (first chain with first UPF and first Internet interface, second chain with second UPF and second Internet interface) into a unified routing system. The network device maintains both chains simultaneously and can switch between them, merging their functionalities to achieve both simplicity and reliability.
Solution Approach 2:
The patent implements dynamic routing where the network device can adaptively switch between the first and second Internet service chains based on real-time component status. When a component failure is detected in one chain, the system dynamically redirects data traffic to the other chain, making the network structure flexible and responsive to changes.
2Reliability
If the network implements automatic failure detection and routing switching, then the service continuity is maintained, but the system complexity increases
Solution Approach 1:
The network device performs automatic failure detection and self-routing without external intervention. The system monitors its own components (UPFs and Internet interfaces) and autonomously switches traffic routing when failures are detected, enabling the network to service itself and maintain continuity without manual configuration or complex external control systems.
Solution Approach 2:
The patent implements a feedback mechanism where the network device continuously monitors the status of components in both Internet service chains. When a failure is detected, this information feeds back to the routing logic, which then adjusts the traffic routing accordingly. This closed-loop feedback system maintains service continuity through automatic adaptation to component failures.
3Loss of time
If the network requires manual session reestablishment upon component failure, then the system complexity is low, but the service interruption time increases
Solution Approach 1:
The patent prepares multiple Internet service chains in advance (first chain and second chain with different UPFs and Internet interfaces) before failures occur. When a component failure is detected, the system can immediately switch to the pre-prepared alternative chain, eliminating the need for manual session reestablishment and reducing service interruption time to near-zero.
Data Source
AI summary
A method for routing data traffic for an Internet service in a communication network includes detecting, using an Internet service disruption routing module, a failure of a component in a first Internet service chain in the communication network. The first Internet service chain includes a first user plane function (UPF) and a first Internet interface, and has at least one assigned session. The method further includes selecting, using the Internet service disruption routing module, at least one component of a second Internet service chain, transmitting, using the Internet service disruption routing module, a signal to a RAN in the communication network indicating the selected at least one component of the second Internet service chain, and redirecting, using the RAN, data traffic for the at least one assigned session of the first Internet service chain to the at least one component of the second Internet service chain.