Network Node TSCAI Handling for XR Latency

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Solution Overview

Problem

Current wireless communication systems struggle to efficiently manage time-sensitive communication assistance information (TSCAI) for extended reality (XR) data traffic, particularly in terms of multimedia cadence, timing updates, and traffic pattern information, which are not compatible with existing communication protocols.

Innovation Solution

The method involves a network node receiving TSCAI associated with XR data traffic, which includes multimedia cadence information, timing update information, timing offset information, configurable parameter sets, and extended reality-specific traffic pattern information. The network node then transmits feedback and can request modifications to the TSCAI to optimize XR data traffic handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing communication protocols are used for XR data traffic, then compatibility and ease of operation are maintained, but time-sensitive communication requirements (latency, timing precision) cannot be met

Engineering Contradiction:

Improvetime-sensitive communication reliabilityVSAvoidprotocol compatibility

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces new communication parameters specific to XR traffic (multimedia cadence information, timing update information, timing offset information, configurable parameter sets, and extended reality specific traffic pattern information) that enable precise timing control and latency management while maintaining compatibility with existing protocol structures through feedback mechanisms and modification requests

Inventive Principle:

Principle #35Parameter changes

2Loss of time

If communication protocols are optimized for XR-specific requirements, then latency and timing precision are improved, but complexity of the communication system increases

Engineering Contradiction:

Improvecommunication latencyVSAvoidcommunication protocol complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The patent implements feedback mechanisms where the network node receives TSCAI from the XR device, processes it, and sends back feedback or modification requests. This closed-loop approach allows the system to adapt to XR traffic requirements dynamically without requiring complete protocol redesign, thereby reducing complexity while improving latency performance

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The communication protocol is made dynamic through the ability to receive TSCAI that contains configurable parameter sets and timing information, allowing the system to adjust communication parameters in real-time based on XR application requirements, thereby optimizing latency without permanent complexity increases

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20250193263A1Time sensitive communication assistance information for extended reality data traffic

Publication Date: 2025.06.12 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may receive time sensitive communication assistance information (TSCAI), associated with extended reality data traffic, that comprises at least one of multimedia cadence information, timing update information, timing offset information, configurable parameter set information, or extended reality specific traffic pattern information. The network node may transmit feedback associated with the TSCAI. Numerous other aspects are described.