Appending Management Data to Block Acknowledgment Frames
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Solution Overview
Problem
Upper network layers in wireless networks lack information about efficiency improvements in the physical and MAC layers, preventing them from utilizing these enhancements effectively.
Innovation Solution
An access point sends management frames to stations to request reports on their operation, which are appended to block acknowledgments or included in spare capacity of physical protocol data units (PPDUs), allowing upper layers to gain insight into efficiency improvements in the data link and physical layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If efficiency improvements are implemented in the physical layer and MAC layer, then network efficiency is improved, but upper networking layers lack knowledge of these improvements and cannot utilize them
Solution Approach 1:
The patent implements a feedback mechanism where the MAC layer sends information about efficiency improvements (such as resource allocation, modulation schemes, and transmission parameters) to upper networking layers through protocol data units. This allows upper layers to become aware of and adapt to the optimizations occurring at lower layers, resolving the information loss problem while maintaining the efficiency benefits.
2Loss of information
If control or management data is added to block acknowledge or protocol data unit, then upper layers gain information about efficiency improvements, but data transmission overhead increases
Solution Approach 1:
The patent merges control or management data with existing block acknowledge or protocol data units by appending the management data to the end of these units. This combining approach allows upper layers to receive efficiency information without requiring separate dedicated communication channels, thereby minimizing the increase in data transmission overhead while still providing the necessary information.
Solution Approach 2:
The patent makes existing protocol data units multi-functional by enabling them to carry both their original data payload and additional control or management information. This allows the same data unit to serve multiple purposes - data transmission and information conveyance - reducing the need for separate overhead channels.
Data Source
AI summary
Disclosed methods and systems for efficiently gathering reports from stations coupled to an access point via a wireless network. In some cases, the reports may be attached to block acknowledge frames, which often occur. Alternatively, when multiple stations operate with assigned resource units during a transmission opportunity (TXOP), the reports are embedded in the spare capacity of a physical protocol data units used during the TXOP.