Flow Setup Table for Mobile Data Network Breakout
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Solution Overview
Problem
Next-generation mobile data networks with flat architectures face challenges in efficiently breaking out data at the edge due to time constraints and the difficulty in making breakout decisions across entities, leading to increased latency and reduced quality of service.
Innovation Solution
Implementing a system with a flow setup table in the basestation breakout component that maps tunnel IDs to IP-related information, allowing for non-cacheable IP data flows to be serviced without network address translation, and using an overlay network to forward data requests and responses between the basestation and gateway components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data breakout decisions are made across multiple entities in a flat mobile data network, then service capability is enhanced, but latency increases and quality of service deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-establishing flow setup tables in both the basestation breakout component and gateway breakout component before data breakout operations. These tables contain pre-computed mappings between tunnel IDs and IP addresses, allowing immediate data forwarding decisions without real-time computation or inter-entity communication delays, thus resolving the latency issue while maintaining enhanced service capability
2Reliability
If network address translation is implemented for non-cacheable IP data flows, then address mapping is achieved, but processing complexity and time increase
Solution Approach 1:
The patent applies preliminary action by pre-computing and storing address mappings in flow setup tables before data flows arrive. The basestation breakout component receives IP address information from the gateway breakout component in advance and stores it in the flow setup table, eliminating the need for real-time network address translation and reducing processing complexity while maintaining reliable address mapping
Solution Approach 2:
The patent applies copying by creating and maintaining a local copy of the flow setup table in the basestation breakout component, which mirrors the mapping information available at the gateway breakout component. This local copy enables independent, fast lookup operations without requiring real-time communication with the gateway, reducing processing complexity while ensuring accurate address mapping
3Area of stationary object
If microwave links are used to connect mobile data network portions, then network coverage is maintained, but bandwidth is limited and throughput is restricted
Solution Approach 1:
The patent applies preliminary action by pre-establishing flow setup tables that contain complete IP address and tunnel ID mappings before data transmission occurs. This pre-computation enables the basestation breakout component to immediately forward data packets without real-time lookup or translation, effectively increasing throughput through faster processing while maintaining the existing microwave link infrastructure and network coverage
Data Source
AI summary
A flow setup table in a basestation breakout component allows for servicing non-cacheable IP data flows at the breakout component without the need for network address translation. For each broken out IP flow at the breakout component, the flow setup table holds a mapping between tunnel IDs and the IP related information. The flow setup table data is sent to the breakout component at the gateway. The gateway breakout component uses the flow setup table to forward non-cacheable data requests to the internet and return data received from the internet back to the basestation breakout component. The basestation component then sends the non-cacheable data in the correct tunnel to the user equipment requesting the data.