Multi-Band Block Ack Control for IEEE 802.11be Links
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Solution Overview
Problem
Existing wireless communication standards face challenges in effectively managing and optimizing communication across multiple radio links in different frequency bands, particularly in IEEE 802.11be standard, where Block Ack communication is examined to enhance throughput but lacks efficient control mechanisms for starting and ending control operations.
Innovation Solution
A communication apparatus that supports IEEE 802.11be standard executes multi-band communication by establishing connections using multiple frequency channels, employing Block Ack communication with frames containing information on frequency channel usage, allowing simultaneous data transmission and reception across different frequency bands to manage and control these connections efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Block Ack communication is implemented to enhance throughput in multi-band communication, then communication rate is improved, but control operation complexity increases due to the need to appropriately start and end control operations across multiple radio links
Solution Approach 1:
The patent segments the control operation by introducing separate control frames (START Block Ack frame and END Block Ack frame) to manage the start and end of Block Ack communication across multiple radio links. This segmentation allows independent control of each radio link's Block Ack operation, reducing the overall control complexity while maintaining high throughput benefits.
Solution Approach 2:
The patent applies preliminary action by having the access point transmit a START Block Ack frame before initiating Block Ack communication and an END Block Ack frame before terminating it. This preliminary framing of control operations ensures that multiple radio links are properly coordinated from the beginning and end, simplifying the control mechanism while enabling enhanced communication rate.
2Productivity
If multiple frequency channels are used simultaneously to improve throughput, then communication rate increases, but control communication becomes more complex due to managing multiple radio links
Solution Approach 1:
The patent makes the control frame universal by allowing the same START Block Ack frame and END Block Ack frame structure to be transmitted across multiple frequency channels (2.4 GHz, 5 GHz, 6 GHz). This multi-functional control frame can manage Block Ack operations on any radio link, simplifying control communication while maintaining high throughput across multiple frequency channels.
Solution Approach 2:
The patent merges the control operation for multiple radio links into a unified frame structure. The START and END Block Ack frames can be transmitted simultaneously or sequentially across different frequency channels, combining multiple control operations into a single manageable process that simplifies control communication while enabling parallel throughput enhancement.
Data Source
AI summary
A communication apparatus for executing communication by establishing connections with another communication apparatus using a plurality of frequency channels transmits or receives, while control communication for collectively controlling communication in the connections using at least two of the plurality of frequency channels is executed, a frame for ending the control communication to or from the other communication apparatus. The frame can include at least two fields each storing information concerning a frequency channel, use of which is stopped in the control communication.