Dynamic TID-to-Link Mapping in Multi-Link Operations
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Solution Overview
Problem
In Multi-Link Operation (MLO) wireless communication systems, dynamic changes in link conditions, such as link addition, deletion, or over-utilization, can disrupt Traffic Identifier (TID) to link mappings, leading to service quality issues and management overhead during roaming, as current mechanisms fail to maintain Quality of Service (QoS) commitments and adapt to available radio resources.
Innovation Solution
A method and system for dynamically reconfiguring TID to link mappings by a network controller, which detects triggers like link changes or roaming, and adjusts mappings to maintain QoS commitments by redistributing TID traffic across available links, ensuring continuous service quality during dynamic link reconfiguration and roaming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dynamic link modification is performed in MLO, then network adaptability and resource utilization are improved, but TID mapping stability and QoS commitment are worsened
Solution Approach 1:
The patent implements dynamic TID-to-link mapping that automatically adjusts when link conditions change. The system continuously monitors link status and reconfigures TID mappings in real-time to maintain QoS commitments despite dynamic link modifications, transforming the static mapping approach into a dynamic adaptive system.
Solution Approach 2:
The patent employs feedback mechanisms where the system monitors link conditions and QoS performance, then uses this information to trigger appropriate actions. When link changes are detected, the feedback loop initiates TID mapping reconfiguration to preserve QoS commitments, creating a closed-loop control system that adapts to changing conditions.
2Duration of action of stationary object
If TID mapping is preserved during roaming, then service continuity is improved, but management complexity increases
Solution Approach 1:
The patent creates a universal TID mapping preservation mechanism that works across different APs and links. The same TID mapping relationships are maintained regardless of which AP or link is being used, allowing the system to handle roaming scenarios with a unified approach rather than requiring separate management for each scenario.
Solution Approach 2:
The patent performs preliminary actions by establishing and preserving TID mappings before roaming occurs. The system proactively maintains the mapping relationships across link changes and roaming events, rather than reacting after service disruption occurs, thereby ensuring seamless service continuity.
3Stability of the object's composition
If static TID to link mapping is used, then mapping stability is improved, but network efficiency and adaptability to link conditions deteriorate
Solution Approach 1:
The patent transforms the static TID-to-link mapping into a dynamic system that automatically adapts to changing link conditions. The mapping relationships are maintained stably through preservation mechanisms, while simultaneously allowing reconfiguration when necessary to optimize network efficiency, achieving both stability and adaptability.
Data Source
AI summary
MLO management techniques are disclosed for preserving TID to link mapping and associated TID commitments. A method includes determining existing TID to link mapping for communication between at least one non-AP MLD and at least one AP MLD, the at least one non-AP MLD and one AP MLD communicating over a MLO based communication network; detecting a trigger for modifying the existing TID to link mapping; and upon detecting the trigger, determining a new TID to link mapping for the existing TID to link mapping such that one or more TID commitments of the existing TID to link mapping are maintained in the new TID to link mapping, the one or more TID commitments including at least a Quality of Service associated with a corresponding TID and one or more flow characteristics associated with network traffic to and from the at least one non-AP MLD.