Block Acknowledgment Compression for Wireless Bandwidth Efficiency

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Wireless communication systems face inefficiencies in bandwidth usage due to the large size of block acknowledgment (ACK) packets, which consume significant resources for transmission.

Innovation Solution

The method involves generating a block acknowledgment frame with specific fields such as a block acknowledgment identifier, starting sequence control, and a block acknowledgement bitmap, and transmitting it wirelessly, with techniques like compression and field reduction to minimize packet size, allowing for efficient transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If block acknowledgment packets are transmitted to confirm receipt of data units, then communication reliability is improved, but bandwidth consumption increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidbandwidth consumption
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The block acknowledgment packet is segmented into essential fields only (block acknowledgment identifier, starting sequence control, and block acknowledgement bitmap), eliminating redundant information while maintaining the ability to confirm receipt of multiple data units. This segmentation reduces the overall packet size and bandwidth consumption while preserving communication reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts and retains only the critical components needed for block acknowledgment functionality. By taking out and removing unnecessary fields and overhead information from traditional block acknowledgment packets, the solution achieves reduced packet size and lower bandwidth consumption while maintaining the essential reliability function of confirming data unit receipt.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If traditional block acknowledgment packets are used, then communication completeness is maintained, but transmission efficiency deteriorates

Engineering Contradiction:
Improvecommunication completenessVSAvoidtransmission efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

By segmenting the block acknowledgment packet into only the necessary fields (identifier, starting sequence control, and bitmap), the patent eliminates redundant data while preserving complete acknowledgment information. This segmentation enables faster transmission and processing, improving transmission efficiency without compromising communication completeness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the parameter of packet size by reducing the block acknowledgment packet to its essential components only. This parameter change from traditional full-size packets to compressed essential-field packets improves transmission efficiency while maintaining the completeness of acknowledgment information through the optimized field structure.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9253290B2Apparatus and methods for block acknowledgment compression
Publication Date: 2016.02.02 QUALCOMM INC
  • US9253290B2 patent drawing
  • US9253290B2 patent drawing
  • US9253290B2 patent drawing

AI summary

Systems, methods, and devices for compressing block acknowledgment (ACK) frames/packets are described herein. In some aspects, a method of communicating in a wireless network includes generating a block acknowledgment frame comprising a plurality of fields in the following order: a block acknowledgment identifier field including an identifier of the block acknowledgment frame; a starting sequence control field including at least one of a sequence number and a function of a sequence number of a data unit for which the block acknowledgement frame is sent; and a block acknowledgement bitmap field indicating a received status of a number of data units. The method further includes wirelessly transmitting the block acknowledgment frame.