Dynamic Packet Cloning for Ultra-Reliable 5G Delivery
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Solution Overview
Problem
Existing mechanisms for packet transmission, such as TCP, PRP, RTP, and policy-based routing, fail to meet the ultra-reliability requirements of 5G use cases, as they either incur high latency, are limited to specific protocols, or are not adaptable to achieve arbitrarily high reliability levels.
Innovation Solution
The method involves dynamic packet cloning and route selection, where packets are cloned and routed through multiple paths to achieve the required reliability, with fields added to the IP header to manage cloning levels and reliability, allowing routers to transparently forward packets and adjust QoS for increased reliability without altering existing network structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dynamic packet cloning is implemented to achieve ultra-reliability, then packet delivery reliability is significantly enhanced, but network traffic and bandwidth usage increase
Solution Approach 1:
The patent implements packet cloning by creating multiple copies of original packets and routing them through different paths. Each cloned packet carries identical payload data but traverses alternative routes to ensure at least one copy reaches the destination reliably, directly addressing the reliability enhancement while managing network traffic through intelligent routing
Solution Approach 2:
The patent segments the network transmission by dividing packet flow into original packets and cloned packets that travel through different network paths. This segmentation allows the system to distribute traffic load across multiple routes, achieving reliability through path diversity while managing overall network bandwidth consumption
2Reliability
If multiple routing paths are used for packet cloning, then packet delivery reliability increases, but device complexity increases
Solution Approach 1:
The patent employs dynamic route selection where routing paths are not fixed but adaptively chosen based on current network conditions and reliability requirements. The system dynamically determines which paths to use for cloned packets, allowing flexibility in managing routing complexity while maintaining high reliability through adaptive path selection
Solution Approach 2:
The patent implements feedback mechanisms where routing decisions are based on monitored network conditions and delivery outcomes. The system uses feedback from network status and packet delivery results to adjust routing paths for cloned packets, managing complexity through intelligent control while achieving ultra-reliability
3Reliability
If packet cloning is applied to existing networks, then ultra-reliability requirements are met, but compatibility with existing protocols must be maintained
Solution Approach 1:
The patent designs the packet cloning mechanism to be universally applicable across existing network protocols and architectures. The cloning function is implemented in a protocol-agnostic manner that can work with TCP, UDP, and other existing protocols, allowing the system to meet ultra-reliability requirements while maintaining broad compatibility with existing network infrastructure
Solution Approach 2:
The patent introduces intermediary components that handle packet cloning and routing without requiring modifications to existing end-system protocols. These intermediary elements act as mediators between original packets and the network infrastructure, enabling reliability enhancement while preserving compatibility with existing protocols through transparent operation
Data Source
AI summary
Various embodiments relate to a method for increasing the reliability of a packet delivery by using dynamic packet cloning on a source node and an intermediate node, the method comprising the steps of calculating an achieved reliability, calculating a calculated reliability using the achieved reliability, determining which of a plurality of first routes that have a reliability greater than the calculated reliability, selecting a first route from the determined first routes wherein the selected first route has the lowest reliability of the determined first routes, when there is at least one determined first routes, selecting a first route from the plurality of first routes wherein the selected first route has highest reliability of the plurality of first routes, when there are no determined first routes, updating a required reliability in the packet header to the reliability of the selected first route and sending the packet on the selected first route.