XR Device Differentiation via Priority Scheduling

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Solution Overview

Problem

Current extended reality (XR) devices face challenges in differentiated network latency and quality of service, as traditional mechanisms like guaranteed bit rate (GBR) and quality of service identifier (QCI) do not distinguish between different data services, leading to inefficient resource allocation and high costs.

Innovation Solution

The implementation of an XR identifier sent to the base station allows for prioritization of XR device transmissions, enabling separate network queues and informed scheduling to ensure low latency data delivery, thereby differentiating XR devices from other network devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional quality of service mechanisms (QCI) are used for network resource allocation, then all data services receive equal treatment, but XR devices cannot achieve low latency performance required for successful operation

Engineering Contradiction:

ImproveXR device operation reliabilityVSAvoidnetwork latency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent segments network resource allocation by introducing device-type identification that distinguishes XR devices from other devices. The base station segments traffic handling by recognizing XR device identifiers and applying differentiated scheduling, separating XR traffic from general traffic streams to ensure low latency processing.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by providing enhanced quality of service specifically to XR devices rather than uniform treatment. The base station applies differentiated resource allocation, priority scheduling, and latency optimization locally to identified XR devices while maintaining standard service for other devices.

Inventive Principle:

Principle #3Local quality

2Reliability

If guaranteed bit rate (GBR) is provided to ensure low latency for XR devices, then XR device performance is improved, but network costs increase significantly

Engineering Contradiction:

ImproveXR device performanceVSAvoidnetwork resource cost

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent applies partial action by providing enhanced quality of service only to identified XR devices rather than guaranteeing bit rate to all devices. The base station applies priority scheduling and resource allocation selectively to XR devices based on device-type identification, providing sufficient but not excessive resources compared to full GBR implementation.

Inventive Principle:

Principle #16Partial or excessive action

3Ease of operation

If network resources are allocated uniformly to all devices, then resource allocation simplicity is maintained, but XR devices experience insufficient priority treatment leading to high latency

Engineering Contradiction:

Improvenetwork resource allocation simplicityVSAvoidXR device data transmission latency

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent introduces device-type identification as an intermediary mechanism that enables differentiated resource allocation without complex manual configuration. The base station uses the XR device identifier as an intermediary to automatically trigger priority scheduling and enhanced quality of service, simplifying the differentiation process while achieving low latency performance.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20240147517A1Extended reality device differentiation

Publication Date: 2024.05.02 T MOBILE INNOVATIONS LLC

AI summary

Aspects provided herein to provide methods, systems, and a non-transitory computer storage media storing computer-useable instructions to differentiate extended reality (XR) devices in a wireless network. The method begins a base station receiving an uplink message containing an XR identifier from an XR device. The base station determines a priority for the XR device using the XR identifier. Based on the priority transmissions are scheduled to the XR device.