Network Segment Delay Reporting for End-to-End QoS Configuration

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Solution Overview

Problem

Providing Quality of Service (QoS) across multiple communication networks of different types is complex due to the inability of one network to obtain information about the operations of other networks, leading to challenges in configuring sufficient network resources to meet end-to-end QoS requirements.

Innovation Solution

A computing device determines end-to-end delay measurements across a first and second communication network and transmits delay information to a network element of the first network, enabling it to configure resources to meet the end-to-end QoS requirements by reporting delay information for network segments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If delay information is not reported for network segments, then the network operation is simple and autonomous, but the end-to-end QoS cannot be properly configured across multiple networks

Engineering Contradiction:

Improveend-to-end QoS configurationVSAvoidnetwork segment delay information

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The patent implements a feedback mechanism where delay measurements are reported from the second network to the first network. The computing device measures delay in the second network segment and transmits this information to the network element in the first network, enabling the first network to configure appropriate QoS parameters based on actual conditions in the second network.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent introduces an intermediary computing device that acts as a bridge between the two networks. This computing device performs delay measurements in the second network and transmits the measured delay information to the network element in the first network, facilitating QoS configuration across network boundaries.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If delay measurements are performed end-to-end across multiple networks, then accurate QoS configuration is enabled, but the measurement and reporting complexity increases

Engineering Contradiction:

Improveend-to-end delay measurementVSAvoidmeasurement and reporting mechanism

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the end-to-end delay measurement into distinct components: the first network segment delay and the second network segment delay. By measuring and reporting delay separately for the second network segment, the system achieves accurate end-to-end QoS configuration while maintaining manageable complexity through structured segmentation of measurement tasks.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12587480B2Delay reporting for network segments in an end-to-end communication path

Publication Date: 2026.03.24 QUALCOMM INC

AI summary

Embodiments of systems and methods for reporting a delay for network segments in an end-to-end communication path may include determining an end-to-end delay measurement of a communication path spanning a first communication network and a second communication network, and transmitting a message including delay information based on the determined end-to-end delay measurement to a network element of the first communication network, wherein the message is configured to enable the network element of the first communication network to configure the first communication network to provide sufficient Quality of Service (QoS) to support an end-to-end QoS requirement based on the delay information.