Adaptive TID-to-Link Mapping for Smooth Multi-Link Video
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Solution Overview
Problem
In multi-link communication environments, increased retransmissions due to deteriorating communication quality in certain links can lead to inefficient data transmission, particularly for streaming data categorized as Video, making it difficult to maintain smooth data reproduction on the receiving end.
Innovation Solution
A communication apparatus and method that dynamically adjusts TID-to-Link Mapping by resetting links with poor communication quality to ensure data transmission only occurs through links with sufficient quality, using a determination unit to assess link quality and a setting unit to reallocate TIDs based on link availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmission continues through all established links, then link utilization is maximized, but communication quality deteriorates due to retransmissions on poor-quality links
Solution Approach 1:
The patent implements dynamic TID-to-Link Mapping that automatically adjusts link allocation based on real-time communication quality assessment. The determination unit continuously monitors link states and the setting unit resets mappings when quality deteriorates, transforming the static link configuration into a dynamic adaptive system that responds to changing channel conditions.
Solution Approach 2:
The patent establishes a feedback loop where the determination unit assesses communication quality on each link and provides information to the setting unit. Based on this feedback about link states, the system automatically resets TID-to-Link Mapping to exclude poor-quality links, creating a closed-loop control system that continuously optimizes data transmission paths.
2Reliability
If TID-to-Link Mapping is reset to exclude poor-quality links, then communication quality is ensured, but link utilization decreases
Solution Approach 1:
The patent changes the operational parameters of link utilization by dynamically adjusting TID-to-Link Mapping based on communication quality thresholds. When quality parameters fall below required levels, the system resets the mapping to exclude those links, effectively changing which links are active for data transmission and optimizing overall system performance.
3Productivity
If multiple links are established for data transmission, then throughput increases, but frequency usage efficiency decreases due to retransmissions
Solution Approach 1:
The patent converts the harmful effect of poor-quality links causing retransmissions into a beneficial filtering mechanism. By using the determination unit to identify and exclude links with communication quality below required levels, the system transforms potential sources of waste into active quality control measures that prevent inefficient frequency usage.
4Device complexity
If TID-to-Link Mapping is maintained statically, then configuration simplicity is preserved, but adaptability to changing link conditions is lost
Solution Approach 1:
The patent implements a self-service mechanism where the communication apparatus automatically monitors its own link conditions and performs self-optimization through dynamic TID-to-Link Mapping adjustments. The determination unit and setting unit work autonomously to assess quality and reset mappings without external intervention, enabling the system to adapt to changing conditions while maintaining operational simplicity.
Data Source
AI summary
A communication apparatus establishes a plurality of links with a different communication apparatus by a Multi-Link function, sets TID-to-Link Mapping which allocates Traffic Identifiers (TIDs) to the established links, determines whether a link state of each of one or more links with the TIDs allocated thereto is a link state in which a communication quality needed for communicating a specific type of data corresponding to a specific category has been ensured, and, in a case where it is determined that one or more links to which TIDs in the specific category are mapped are not in the link state in which the communication quality has been ensured, resets the TID-to-Link Mapping in such a manner that the specific type of data is not transmitted via the one or more links determined not to be in the link state in which the communication quality has ensured.