Delay Status Reporting for Synchronized Multi-Modal Wireless Data

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Solution Overview

Problem

3GPP networks face challenges in maintaining synchronization of multi-modal data due to differing discard timer expiries across different channels, leading to premature data discard and degradation or failure of synchronized data communication.

Innovation Solution

Implementing delay status reporting (DSR) mechanisms that trigger based on inter-flow dependent conditions, ensuring synchronized data transmission by reporting buffer delays across related traffic flows, and adjusting resource allocation to meet synchronization thresholds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If data is transmitted via multiple channels with independent discard timers, then each channel can operate independently with its own timing, but synchronization between multi-modal data flows deteriorates

Engineering Contradiction:

Improveindependent channel operationVSAvoidsynchronization of multi-modal data

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent merges the discard timer operations of multiple channels by introducing a common discard timer that is shared across all channels carrying multi-modal data. This common timer ensures that data from different modalities (e.g., audio, video, text) is discarded simultaneously, maintaining synchronization. The base station coordinates the discard timer values across channels, combining what were previously independent timing operations into a unified synchronization mechanism.

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If discard timers are set independently for each channel, then channel-specific timing requirements can be met, but data may be discarded prematurely before synchronized transmission

Engineering Contradiction:

Improvechannel-specific timing flexibilityVSAvoidpremature data discard

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by having the base station pre-coordinate and align the discard timer values across multiple channels before data transmission begins. The base station calculates appropriate discard timer values that account for the synchronization requirements of multi-modal data, ensuring that all channels are ready to transmit or discard data simultaneously. This preliminary coordination prevents premature discard while maintaining channel-specific timing flexibility.

Inventive Principle:

Principle #10Preliminary action

3Device complexity

If separate buffers are used for different channels, then channel isolation is maintained, but synchronization control between channels becomes complex

Engineering Contradiction:

Improvebuffer management structureVSAvoidsynchronization control

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The base station acts as an intermediary that coordinates the discard timer operations between the UE's separate channel buffers. While the UE maintains separate buffers for different channels (preserving buffer isolation), the base station mediates synchronization by aligning the discard timer values across channels and coordinating data transmission timing. This intermediary coordination simplifies the overall synchronization control while maintaining the benefits of separate buffer management.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250310820A1Delay services for multi-modality

Publication Date: 2025.10.02 APPLE INC

AI summary

The present application relates to devices and components including apparatus, systems, and methods related to delay status reporting in wireless communication systems.