TWT Quiet Element Control for Legacy Wi-Fi Interference
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Solution Overview
Problem
Legacy Wi-Fi devices that do not support restricted Target Wake Time (TWT) operation interfere with latency-sensitive data communication during reserved service periods, causing interference and degrading the user experience in artificial reality applications.
Innovation Solution
Implementing a quiet element or quiet channel element that instructs non-TWT capable devices to refrain from transmitting during a quiet period, while TWT capable devices can selectively ignore this element to transmit during the reserved service period based on predefined rules or indications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a quiet element is implemented to prevent legacy devices from transmitting during reserved service periods, then interference from legacy devices is reduced, but TWT capable devices are also blocked from transmitting during the same period
Solution Approach 1:
The patent applies local quality by creating different transmission rules for different device types within the same quiet period. TWT capable devices are exempted from the quiet element restriction through specific identification mechanisms, allowing them to transmit while legacy devices remain blocked. This selective application of transmission permissions based on device capability resolves the contradiction by treating different devices differently based on their TWT support status
Solution Approach 2:
The patent introduces an intermediary mechanism (TWT schedule identification and exemption logic) that mediates between the quiet element restriction and TWT capable device transmission needs. The system uses TWT element information and schedule parameters as intermediaries to determine which devices should be exempted from quiet period restrictions, enabling differentiated access without direct device-to-device negotiation
2Adaptability or versatility
If legacy devices transmit during reserved service periods, then wireless communication compatibility is maintained, but latency-sensitive data communication is interfered with
Solution Approach 1:
The patent segments the wireless device population into two categories: TWT capable devices and legacy devices. By segmenting devices based on their TWT support capability, the system can apply different transmission rules to each segment. TWT capable devices are allowed to transmit during reserved service periods while legacy devices are restricted, thereby protecting latency-sensitive communications without compromising overall system compatibility
Solution Approach 2:
The patent changes the transmission parameter (permission to transmit during quiet period) based on the device's TWT capability parameter. Devices with TWT capability are granted exemption from quiet element restrictions, while legacy devices without this capability remain subject to the restrictions. This parameter-based differentiation resolves the contradiction by linking transmission permissions to specific device capabilities
Data Source
AI summary
Disclosed herein are related to a wireless communication. In one aspect, a wireless communication device receives a frame including a first indication that indicates the wireless communication device to disable transmission during a quiet period. The quiet period may overlap with a restricted service period of a restricted target wake time (TWT) schedule of the wireless communication device. In one aspect, the wireless communication device may determine to ignore the first indication for the quiet period based on a defined rule or a separate indication indicating the wireless communication device to ignore the first indication.