Multicast Block Acknowledgement Aggregation for Wireless Traffic
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Solution Overview
Problem
Current communication systems face challenges in efficiently acknowledging transmissions from multiple user terminals to a single access point, leading to increased bandwidth requirements and traffic overhead.
Innovation Solution
A method and apparatus for generating and transmitting a multicast block acknowledgement message that includes a group identifier and acknowledgement information, reducing the need for individual acknowledgements and minimizing traffic by using a group identifier to aggregate acknowledgement information for multiple terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual acknowledgements are sent to each terminal, then reliability of transmission confirmation is improved, but bandwidth usage and traffic overhead increase
Solution Approach 1:
The patent combines multiple individual acknowledgement messages into a single multicast block acknowledgement message that serves multiple terminals simultaneously. The access point aggregates acknowledgement information for multiple user terminals into one message, reducing the total number of acknowledgement transmissions and thereby reducing bandwidth consumption while maintaining reliable transmission confirmation for each terminal.
Solution Approach 2:
The multicast block acknowledgement message serves multiple functions: it acknowledges transmissions from multiple different user terminals simultaneously, uses a group identifier to address multiple recipients at once, and maintains individual acknowledgement tracking for each terminal within the aggregated message structure.
2Reliability
If individual acknowledgements are sent to each terminal, then transmission confirmation accuracy is improved, but traffic overhead increases
Solution Approach 1:
The patent merges multiple individual acknowledgement transactions into a single multicast block acknowledgement message. By aggregating acknowledgement information for multiple terminals into one message with a group identifier, the system reduces traffic overhead while preserving accurate transmission confirmation for each individual terminal through structured acknowledgement data within the message.
3Quantity of substance
If multicast block acknowledgement is used, then bandwidth usage is reduced, but device complexity increases
Solution Approach 1:
The multicast block acknowledgement message is segmented into distinct components: a group identifier field that identifies the multicast group, and structured acknowledgement information fields that contain individual acknowledgement status for each terminal. This segmentation allows receiving terminals to efficiently parse and process only their relevant acknowledgement information while the access point manages the aggregation process.
4Quantity of substance
If multicast block acknowledgement is used, then traffic overhead is reduced, but protocol complexity increases
Solution Approach 1:
The protocol is segmented into clear components: terminals transmit uplink frames with their identifiers, the access point generates multicast block acknowledgement messages with group identifiers and structured acknowledgement fields, and terminals process messages by matching group identifiers and extracting their specific acknowledgement information. This structured segmentation reduces overall protocol complexity despite the advanced functionality.
Data Source
AI summary
A method for wireless communications is disclosed that includes generating and interpreting multicast block acknowledgement frames. Group identifiers and apparatus identifiers are used for indicating the presence of aggregated acknowledgement information and for extracting acknowledgement information for individual stations.