Leg Selection for Multi-Connectivity Reliability
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Solution Overview
Problem
Current cellular communication networks face challenges in optimizing resource usage and enhancing user experience due to limitations in reliability and efficiency of data packet transmission across multiple transmission legs, particularly in scenarios with varying leg reliability and potential packet errors.
Innovation Solution
The implementation of a method that involves obtaining a reliability estimate for transmission legs and assigning data packet types based on this estimate, using techniques such as PDCP duplication and network coding to improve data packet transmission success probability and reduce errors, by coding and decoding data packets and selectively assigning them to the most reliable transmission legs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data packets are transmitted over multiple transmission legs without selective assignment, then resource usage is simplified, but transmission reliability decreases due to packet errors on unreliable legs
Solution Approach 1:
The patent changes the parameter of packet assignment by introducing reliability estimates for different transmission legs and selectively assigning packets based on these estimates. The network entity determines which transmission leg to use for each packet by comparing reliability parameters, thereby improving transmission success probability while managing complexity through parameter-based decision making.
Solution Approach 2:
The patent implements dynamic packet assignment where the selection of transmission leg changes based on current reliability estimates. The system continuously updates reliability information and adapts packet routing decisions in real-time, transforming a static transmission approach into a dynamic one that responds to changing network conditions.
2Productivity
If all data packets are treated equally across transmission legs, then processing is simpler, but transmission efficiency decreases due to packet loss on unreliable legs
Solution Approach 1:
The patent applies local quality by treating different data packets differently based on their assignment to specific transmission legs. Instead of uniform processing, the system assigns packets to legs with appropriate reliability characteristics, giving each packet a tailored transmission path based on local leg quality assessments.
Solution Approach 2:
The patent performs preliminary action by obtaining reliability estimates for transmission legs before actual packet transmission. The network entity预先 determines the reliability of available legs and uses this information to make informed assignment decisions, preventing packet loss before it occurs rather than reacting to errors after transmission.
3Reliability
If transmission legs are used without reliability assessment, then system operation is simpler, but packet error rate increases
Solution Approach 1:
The patent implements feedback by obtaining reliability estimates for transmission legs and using this feedback information to guide packet assignment decisions. The system continuously monitors transmission leg performance and adjusts packet routing based on this feedback, creating a closed-loop control mechanism that improves reliability while automating management complexity.
Data Source
AI summary
Disclosed is a method comprising obtaining a reliability estimate indicating transmission success probability for a plurality of transmission legs and assigning a data packet type to a subset of the plurality of transmission legs based at least partly on said reliability estimate.