Multi-Link Communication Control for Low-Overhead TID Mapping Changes
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Solution Overview
Problem
Existing multi-link operation systems face increased overhead and time delays when changing link assignments due to the need for frequent resetting and inefficient TID-to-link mapping, particularly in enhanced multi-link operations.
Innovation Solution
A communication control apparatus that controls wireless communication sections to efficiently change link settings based on report information, reducing overhead by temporarily adjusting TID assignments using report information stored in frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If TID-to-link mapping is changed by resetting and exchanging specific frames, then the link assignment can be updated, but overhead is increased and time delay occurs
Solution Approach 1:
The patent extracts the TID-to-link mapping information from the conventional reset frame exchange process and incorporates it into existing data frames as report information. This allows the mapping changes to be transmitted alongside regular data traffic without requiring separate reset procedures, thereby reducing overhead and time delay while maintaining adaptability.
Solution Approach 2:
The patent merges the TID-to-link mapping update function with existing data frame transmission. Report information containing mapping changes is embedded in regular data frames, combining control information transmission with data transmission to eliminate separate reset procedures and reduce overall overhead.
2Adaptability or versatility
If TID-to-link mapping is changed by resetting and exchanging specific frames, then the link assignment can be updated, but overhead is increased
Solution Approach 1:
The patent merges control information (TID-to-link mapping changes) with data transmission by embedding report information in existing data frames. This eliminates the need for separate reset frames and reduces the quantity of control overhead while maintaining full adaptability for link assignment updates.
Solution Approach 2:
The patent makes existing data frames multi-functional by enabling them to carry both data payload and control information (report information about TID-to-link mapping). This universal approach allows a single frame type to serve multiple purposes, reducing the need for specialized control frames and minimizing overhead.
3Adaptability or versatility
If MU EDCA parameter is used for transmitting unmapped TID, then transmission can occur, but priority is lower and transmission right acquisition rate is reduced
Solution Approach 1:
The patent applies preliminary action by pre-establishing TID-to-link mapping relationships before transmission is needed. Report information proactively notifies receiving devices of mapping changes, allowing both ends to synchronize their mapping tables in advance. This eliminates the need for low-priority MU EDCA transmissions and restores normal transmission priority.
Data Source
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AI summary
[Object] To reduce overhead upon changing a setting for a link. [Solving Means] A communication control apparatus according to the present disclosure includes a control section that controls a plurality of wireless communication sections wirelessly connected to a wireless communication apparatus using respective links of a plurality of links for which respective settings have been performed, the control section performing control such that report information received by any of the plurality of wireless communication sections is acquired and such that a setting of a target link that is a portion of the plurality of links is changed from a current setting to a target setting, on the basis of the report information, the report information indicating a change applied to the current setting such that the setting of the target link is changed from the current setting to the target setting.