XR Device Identification via Access Network Type for QoS
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Solution Overview
Problem
Extended reality (XR) devices, such as virtual reality (VR), augmented reality (AR), and mixed reality (MR) devices, face challenges in meeting their specific quality of service (QoS) guarantees when connected to a Wi-Fi hotspot, as they require high throughput, low latency/jitter, and low packet loss/error.
Innovation Solution
The solution involves identifying XR devices to an Internet gateway by providing a specific access network type associated with XR devices, allowing the Internet gateway to establish a protocol data unit (PDU) session and packet data network (PDN) connectivity with specific DNNs and APNs, thereby meeting the QoS requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If XR devices connect to a Wi-Fi hotspot using generic device identification, then connection establishment is simple, but quality of service guarantees (throughput, latency, jitter, packet loss) cannot be met
Solution Approach 1:
The patent applies the concept of visual identification by changing the display color of the camera viewfinder to green when face detection is successful, providing immediate visual feedback to the user about the detection state without requiring complex interface interactions
Solution Approach 2:
The system automatically performs face detection and provides visual feedback without requiring user intervention. The camera device autonomously detects faces, determines detection success, and updates the display color accordingly, eliminating the need for manual configuration or complex user operations
2Reliability
If the Internet gateway uses generic access network type identification, then device compatibility is high, but XR device specific QoS requirements cannot be satisfied
Solution Approach 1:
The patent introduces device-specific identification characteristics (access network type indicators) that allow the Internet gateway to differentiate between generic devices and XR devices. This enables localized QoS policy application where XR devices receive enhanced service quality while other devices continue to use standard service levels, resolving the contradiction between specialization and compatibility
3Reliability
If XR devices establish PDU sessions with specific DNNs and APNs, then QoS requirements are met, but network configuration complexity increases
Solution Approach 1:
The system pre-configures the Internet gateway with XR-specific access network type indicators and associated QoS policies. When an XR device connects, the gateway automatically recognizes the device type through the pre-established indicator and applies the appropriate QoS parameters without requiring real-time configuration or complex negotiation, thereby maintaining simplicity while ensuring QoS guarantees
Data Source
AI summary
Methods and systems are provided for differentiating an XR device from other devices when initiating communications with an Internet gateway. Initially the XR device sends a probe request to the Internet gateway, where the probe request includes an identifier of the device type and network requirements of the XR device. It is determined that the particular device type and network requirements in the probe request are supported by the Internet gateway, and is communicated to the XR device in the form of a probe response. A communication session is set up between the XR device, the Internet gateway, and a network, the communication session including QoS control based on the device type and network requirements of the XR device.