Access Node Device Stateless Stateful Packet Forwarding
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Solution Overview
Problem
Current wireless communication networks, particularly in EPS/LTE, face inefficiencies due to significant signaling and processing overhead for small data transfers, especially when machines communicate, leading to performance issues and security vulnerabilities, as they are not well-adapted for connectionless and connection-oriented services, and lack efficient dynamic roaming capabilities.
Innovation Solution
An access node device and method that forward data packets in either stateless or stateful modes based on packet type, using a processor to determine the forwarding path, with stateless mode utilizing a default path identified by a URI for service provider networks and stateful mode using user and session-specific information, decoupling the access network from the core network, and allowing for improved security and resource optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stateful mode is used for forwarding data packets with user context transfer, then service quality and security are improved, but signaling overhead and processing delay increase significantly
Solution Approach 1:
The patent implements dynamic mode selection between stateful and stateless forwarding based on service type and network conditions. The access node determines whether to establish full user contexts or use simplified forwarding paths, allowing the system to adapt its complexity to match actual service requirements and reduce unnecessary signaling overhead
Solution Approach 2:
The patent applies different forwarding treatments to different data packets based on their service characteristics. Connection-oriented services receive stateful handling with full security processing, while connectionless services use stateless forwarding with minimal processing, optimizing resource allocation locally for each packet type
2Reliability
If stateful mode is used for small data transfers, then security context is maintained, but processing overhead and network load increase
Solution Approach 1:
The patent applies differentiated security processing based on service type. For connectionless services with small data transfers, minimal security validation is performed without establishing full user contexts. For connection-oriented services, complete security context establishment is maintained. This local quality approach ensures security where needed while reducing processing overhead elsewhere
Solution Approach 2:
The patent changes the security processing parameters dynamically based on service characteristics. The depth of security context establishment, authentication requirements, and context storage duration are adjusted according to whether the service is connection-oriented or connectionless, optimizing the balance between security and processing efficiency
3Extent of automation
If rigid security and QoS management are implemented, then network control is improved, but adaptability to diverse applications deteriorates
Solution Approach 1:
The patent introduces dynamic service type classification that allows the network to adapt its control mechanisms to different application requirements. The system automatically identifies service characteristics and adjusts security and QoS management intensity accordingly, providing rigid control for connection-oriented services while enabling flexible handling for connectionless services
Solution Approach 2:
The patent creates a universal forwarding framework that handles both connection-oriented and connectionless services through a single architecture. The access node performs multi-functional operations including service type detection, mode selection, and adaptive forwarding, making the system versatile enough to support diverse applications while maintaining centralized control
Data Source
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AI summary
The present invention relates to access node device (1) arranged for receiving and forwarding data packets in a communication network (2), the device comprising at least one processor (20) arranged to: receive data packets from an user node (3); and forward the data packets in a stateless mode over a first path to a destination gateway node (4), the first path being a default path, or forward the data packets in a stateful mode over a second path to a destination node, the second path being determined by user and/or session specific information for said user node (3). Furthermore, the invention also relates to a corresponding gateway node device, a method in an access node, a method in a gateway node, a computer program, and a computer program product thereof.