Video Stream Quality Control via Policy Server Resource Reservation

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Solution Overview

Problem

The quality of video streams transmitted from mobile devices through telecommunications networks is often poor due to the best-efforts nature of these networks, which do not guarantee a minimum quality level, and existing methods do not allow for real-time or near real-time video streaming from mobile devices to media broadcasting companies.

Innovation Solution

A method that ensures a video stream from a mobile device is communicated at a minimum quality level by authorizing the device through a policy server, reserving resources, and establishing a communications session using signaling information, allowing for contemporaneous video capture and transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If video clips are captured and then later communicated through a telecommunications network, then the network can handle the traffic, but the quality of the video clip is poor because the network operates on a best-efforts basis

Engineering Contradiction:

Improvevideo qualityVSAvoiddelay in communication

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by reserving network resources and establishing quality of service parameters before the video stream is transmitted. The policy server authorizes the mobile device and pre-allocates network resources to ensure minimum quality levels are met during contemporaneous transmission.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If video streams are transmitted contemporaneously to capturing, then real-time delivery is achieved, but the network quality cannot be guaranteed

Engineering Contradiction:

Improvetimeliness of video deliveryVSAvoidminimum quality level

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where the policy server continuously monitors the video stream transmission and can adjust resource allocation to maintain quality standards. The network infrastructure provides feedback on stream quality and resource utilization to ensure compliance with minimum quality requirements.

Inventive Principle:

Principle #23Feedback

3Reliability

If resources are reserved to facilitate communication at minimum quality level, then quality is ensured, but network resource availability is reduced

Engineering Contradiction:

Improveminimum quality levelVSAvoidresource management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The policy server acts as an intermediary between mobile devices and the network infrastructure. It manages resource reservations and quality of service policies centrally, simplifying the complexity by providing a single point of control rather than distributing complex resource management across multiple network elements.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS8558866B1Ensuring quality of a video stream through a telecommunications network

Publication Date: 2013.10.15 T MOBILE INNOVATIONS LLC

AI summary

A method and medium are provided for ensuring that a video stream communicated from a mobile device is communicated subject to a minimum quality level. A request to communicate a video stream at a minimum quality level from a mobile device is received. Signaling information from the mobile device is processed and utilized to establish a communications pathway from the mobile device to the target device. The communications pathway facilitates the communication of the video stream at the minimum quality level. The video stream is communicated to the target device contemporaneously to receiving the video clip by the mobile device.