Headset Protocol Switching for Stable Wireless Links
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Solution Overview
Problem
Wearable display technologies for virtual or augmented reality experience face connectivity issues due to delays or failures in communication links between the wearable device and the central processing system, leading to a reduced user experience.
Innovation Solution
Implementing a method and system that allows switching between different wireless communication protocols, such as IEEE 802.11ay and IEEE 802.11ax, based on link quality degradation, where the head wearable display requests a protocol switch and the console determines the optimal time for switching between communication links to maintain a stable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single wireless communication protocol (e.g., IEEE 802.11ay) is used for communication between the wearable display and console, then the communication link may provide high data rates, but the link quality may degrade due to environmental factors causing delays or failures
Solution Approach 1:
The system dynamically switches between different wireless communication protocols (IEEE 802.11ay and IEEE 802.11ax) based on real-time link quality conditions. The wearable display and console monitor signal-to-noise ratio and other link characteristics, automatically transitioning between protocols to maintain optimal communication reliability under varying environmental conditions.
Solution Approach 2:
The system changes the communication protocol parameter based on link quality degradation. When the first link using IEEE 802.11ay experiences poor signal-to-noise ratio, the system switches to the second link using IEEE 802.11ax, effectively changing the operational parameters to maintain reliable communication.
2Reliability
If the system switches communication protocols dynamically based on link quality, then communication reliability is improved, but the system complexity increases due to managing multiple protocols and switch decisions
Solution Approach 1:
The system implements a feedback mechanism where the wearable display and console continuously monitor link quality metrics (signal-to-noise ratio, link characteristics) and use this feedback to automatically decide when to switch between IEEE 802.11ay and IEEE 802.11ax protocols. This closed-loop control simplifies the switching logic by relying on objective threshold-based decisions rather than complex algorithms.
Solution Approach 2:
The protocol switching is performed autonomously by the communication devices themselves without requiring external intervention. The wearable display and console self-manage the protocol selection based on their own link quality assessments, reducing the need for complex external control systems.
3Ease of operation
If the system maintains a single active communication link, then the system operation is simpler, but the user experience deteriorates due to communication delays or failures
Solution Approach 1:
The system establishes a second communication link using IEEE 802.11ax in advance as a backup before the first link using IEEE 802.11ay fails. This preliminary preparation ensures that when link quality degradation occurs, the system can immediately switch to the pre-established alternative link, minimizing communication delays and maintaining seamless operation.
Data Source
AI summary
Disclosed herein are a system, a method and a device for switching between different communications protocols. A head wearable display can transmit, to a console during a first session interval, a first request to switch from a first link using a first communication protocol to a second link using a second communication protocol. The first request can include at least one characteristic of the first link. The head wearable display can receive, from the console, a first response to the first request, to perform a switch from the first link to the second link. The first response can indicate a wake up time and a second session interval to perform the switch. The head wearable display can switch from the first link to the second link in the second session interval and after the wake up time.