Central Wireless Feedback Merging for Shared Isochronous Bandwidth
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Solution Overview
Problem
Existing wireless communication devices face challenges in efficiently managing isochronous bandwidth, particularly when both Bluetooth and WLAN communications share a medium, leading to reduced bandwidth availability for Wi-Fi operations.
Innovation Solution
A central wireless device combines feedback from multiple peripheral devices into a single group feedback message, acknowledging data packets from multiple devices simultaneously, thereby freeing up additional time resources for Wi-Fi communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate acknowledgment messages are transmitted to each peripheral device, then reliable data packet delivery is ensured, but isochronous bandwidth is consumed and Wi-Fi communication resources are reduced
Solution Approach 1:
The patent combines multiple individual acknowledgment messages into a single group feedback message that acknowledges data packets from multiple peripheral devices simultaneously. This merging approach maintains reliable delivery confirmation while reducing the total quantity of acknowledgment transmissions, thereby freeing up isochronous bandwidth for Wi-Fi communications.
Solution Approach 2:
The group feedback message serves multiple functions: it acknowledges data packets from multiple peripheral devices in a single transmission, provides sequence number information for multiple devices, and enables reliable delivery confirmation without consuming proportional bandwidth for each individual device. This multi-functionality resolves the contradiction by making the acknowledgment mechanism more efficient.
2Loss of information
If multiple individual feedback messages are sent to peripheral devices, then accurate acknowledgment tracking is achieved, but time resources for Wi-Fi communications are reduced
Solution Approach 1:
The patent merges multiple individual feedback messages into a single group feedback message that contains acknowledgment information for multiple peripheral devices. This consolidation maintains accurate tracking of which data packets were successfully received by including sequence numbers for multiple devices, while significantly reducing the time required for acknowledgment transmissions compared to sending separate messages to each device.
3Ease of operation
If separate acknowledgment transmissions are performed for each peripheral device, then individual device feedback is provided, but power consumption increases
Solution Approach 1:
The patent combines multiple individual acknowledgment transmissions into a single group feedback message transmission. This merging approach maintains the ability to provide individual device feedback through included sequence numbers and device identifiers, while reducing the total number of transmission events and thereby lowering power consumption on the central wireless device.
Data Source
AI summary
This disclosure provides methods, components, devices and systems related to a central wireless device combining feedback for each peripheral wireless device of a connected isochronous group (CIG) into a single feedback message, thereby increasing the bandwidth available for Wi-Fi communications on the same band. In some examples, the central wireless device may monitor a first subevent of an isochronous interval for a first data packet from a first peripheral wireless device in the CIG and a second subevent of the isochronous interval for a second data packet from a second peripheral wireless device in the CIG. The central wireless device may transmit, in a third subevent of the isochronous interval and to each peripheral wireless device in the CIG, a group feedback message. The remaining subevents of the isochronous interval not used for isochronous streams may be used for Wi-Fi communications.