Multi-Link Spatial Stream Aggregation for 802.11be Control Frame Reception
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Solution Overview
Problem
In multi-link wireless communication using the IEEE 802.11be standard, the temporary aggregation of spatial streams for efficient communication can result in a lack of usable spatial streams in other links, leading to missed control frames and potential interference with other communication devices, which hampers the efficiency of Enhanced Multi-Link Multi-Radio (EMLMR) communication.
Innovation Solution
A communication apparatus is configured to aggregate spatial streams usable by a partner apparatus across multiple links to a first link, specify the communication status of a second link, and transmit notifications to the partner apparatus regarding the usability of frequency channels after the completion of communication in the first link, allowing for optimized resource utilization and reduced interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spatial streams are temporarily aggregated to a specific link to increase the number of spatial streams, then communication efficiency is improved, but the communication apparatus cannot receive control frames from other links, leading to potential interference and reduced reliability
Solution Approach 1:
The patent applies preliminary action by notifying the partner apparatus in advance about the planned spatial stream aggregation operation and the duration it will affect other links. This allows the partner apparatus to proactively avoid transmitting control frames during the aggregation period, preventing missed frames and interference while maintaining the efficiency benefits of spatial stream aggregation.
2Productivity
If spatial streams are aggregated to a first link, then throughput in that link is improved, but frequency channels in other links remain idle causing loss of communication opportunities
Solution Approach 1:
The patent applies dynamics by enabling flexible switching of spatial stream aggregation configurations between multiple links. The system can dynamically allocate spatial streams to different links based on current communication needs, allowing frequency channels in previously idle links to be utilized effectively, thus reducing time loss while maintaining high throughput.
3Speed
If the number of spatial streams is increased in one link, then communication speed is improved, but the apparatus cannot monitor other links for signal collisions
Solution Approach 1:
The patent applies feedback by implementing a notification mechanism where the communication apparatus informs the partner apparatus about the spatial stream aggregation status and its impact on other links. This feedback loop enables the partner apparatus to adjust its transmission behavior accordingly, avoiding signal collisions on frequency channels that may not be actively monitored during aggregation periods, thus maintaining high communication speed while preventing harmful interference.
Data Source
AI summary
A communication apparatus for performing communication in accordance with an IEEE 802.11 series standard executes predetermined communication with a partner apparatus of the communication by aggregating spatial streams usable by the partner apparatus in each of a plurality of links to a first link among the plurality of links, specifies a communication status in a second link different from the first link among the plurality of links while the predetermined communication is executed in the first link, and transmits a predetermined notification to the partner apparatus based on a fact that the communication status in which the partner apparatus can transmit a signal in the second link is specified at an end of the predetermined communication in the first link.