Multi-Link Mode Negotiation for EMLSR and EMLMR Links
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Solution Overview
Problem
Current multi-band aggregation and communication technologies lack clear stipulations on which links support Enhanced-MultiLink Single Radio (EMLSR) or Enhanced-MultiLink Multi-Radio (EMLMR) modes during multi-link establishment between multi-link devices (MLD), leading to inefficiencies and potential communication conflicts.
Innovation Solution
A communication method and apparatus that utilize a first message frame to determine and negotiate operation modes and link information for multi-link devices, enabling flexible selection of EMLSR or EMLMR modes based on channel status, network conditions, and device capabilities, with feedback mechanisms to ensure agreement between AP MLD and non-AP STA MLD.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple frequency bands are aggregated for simultaneous communication, then the data rate and throughput are increased, but the complexity of link management and mode negotiation increases
Solution Approach 1:
The patent segments the multi-link establishment process into distinct phases: capability exchange, parameter negotiation, and mode determination. Each link's operation mode (EMLSR/EMLMR) is independently determined based on specific criteria, allowing granular control over complex multi-band aggregation while maintaining manageable negotiation procedures
Solution Approach 2:
The patent introduces dynamic mode selection where links can operate in different operation modes (EMLSR or EMLMR) based on real-time conditions. The first message frame dynamically carries operation mode indication information, allowing the system to adapt link configurations rather than using a static uniform approach across all links
2Adaptability or versatility
If operation modes are not clearly stipulated during multi-link establishment, then the system maintains flexibility, but communication conflicts and inefficiencies occur
Solution Approach 1:
The patent performs preliminary action by determining and indicating operation modes during the multi-link establishment phase, before actual data transmission begins. The first message frame is exchanged during association/setup to pre-negotiate which links will operate in EMLSR or EMLMR modes, preventing conflicts during active communication
Solution Approach 2:
The patent implements feedback mechanisms where devices exchange capability information and operation mode indications through message frames. The receiving device provides feedback by acknowledging the indicated operation mode or suggesting alternatives, ensuring both parties agree on the configuration before proceeding with communication
Data Source
AI summary
A communication method is performed by a non-Access Point Station Multi-Link Device (non-AP STA MLD). The method includes: determining a first message frame, wherein the first message frame includes identification information for indicating an operation mode to be maintained, and the identification information corresponds to link information for identifying a link to which the operation mode is applicable; and sending the first message frame.