Selective Acknowledgement for Access Probe Frame Reliability
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Solution Overview
Problem
In wireless communication systems, the existing methods for access probes result in redundant transmissions and increased interference due to the lack of efficient acknowledgement mechanisms, leading to power wastage and suboptimal resource utilization.
Innovation Solution
Implementing a selective acknowledgement (SACK) mechanism that allows wireless nodes to acknowledge only correctly received frames within an access probe message, enabling selective retransmission of faulty frames and reducing unnecessary transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional acknowledgement mechanisms are used for access probes, then all frames must be retransmitted when any error occurs, but this results in redundant transmissions and increased interference
Solution Approach 1:
The patent segments the access probe into multiple frames and implements selective acknowledgement at the frame level. Instead of treating the entire access probe as a single unit that requires complete retransmission upon any error, the system acknowledges individual frames and retransmits only those that contain errors. This segmentation approach maintains reliability for correctly received frames while eliminating redundant retransmissions of error-free frames, thereby reducing interference at the base station.
2Reliability
If traditional acknowledgement mechanisms are used for access probes, then all frames must be retransmitted when any error occurs, but this leads to power wastage
Solution Approach 1:
The patent segments the access probe into multiple frames and implements selective acknowledgement at the frame level. Instead of treating the entire access probe as a single unit that requires complete retransmission upon any error, the system acknowledges individual frames and retransmits only those that contain errors. This segmentation approach maintains reliability for correctly received frames while eliminating redundant retransmissions of error-free frames, thereby reducing interference at the base station.
3Productivity
If selective acknowledgement is implemented, then retransmission efficiency is improved, but system complexity increases
Solution Approach 1:
The patent segments the access probe into multiple frames and implements selective acknowledgement at the frame level. Instead of treating the entire access probe as a single unit that requires complete retransmission upon any error, the system acknowledges individual frames and retransmits only those that contain errors. This segmentation approach maintains reliability for correctly received frames while eliminating redundant retransmissions of error-free frames, thereby reducing interference at the base station.
Solution Approach 2:
The patent implements a feedback mechanism where the base station sends selective acknowledgements back to the wireless device indicating which frames were received correctly and which require retransmission. This feedback loop enables the wireless device to make informed decisions about retransmission, improving retransmission efficiency by avoiding redundant transmissions of correctly received frames while maintaining manageable system complexity through structured feedback protocols.
Data Source
AI summary
Aspects of the present disclosure are directed to apparatuses and methods capable of selective acknowledgement of packets from an access probe. In one aspect, an apparatus includes: a transceiver configured to receive a set of frames associated with an access probe message from a wireless node, wherein the access probe message includes a plurality of frames, and the set of frames comprises a subset of the plurality of frames; and a processing system configured to generate a selective acknowledgement message based on a determination of whether each frame in the set of frames is received correctly. The acknowledgement includes an indication of receipt for at least one frame in the set of frames. The transceiver can transmit the selective acknowledgement message with an identifier assigned to the wireless node to allow tracking of a response. Other aspects, embodiments, and features are also claimed and described.