Adaptive Multicast Streaming Optimizer for Wireless Networks

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Solution Overview

Problem

Existing wireless network technologies face inefficiencies in delivering video content to mobile devices, as they often rely on either multicast or unicast transmission methods without adaptively switching between them based on viewing patterns, leading to suboptimal use of wireless network resources.

Innovation Solution

Implementing a virtual set-top box (STB) application on mobile devices that dynamically switches between multicast and unicast video streaming based on the number of mobile devices viewing the same content, utilizing adaptive multicast streaming optimizer to determine the most bandwidth-efficient transmission method for each video stream.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If multicast transmission is used to deliver video content to multiple mobile devices, then bandwidth efficiency is improved, but network resource allocation becomes suboptimal when viewing patterns change

Engineering Contradiction:
Improvebandwidth efficiencyVSAvoidnetwork resource allocation adaptability
Core Design Contradiction:
Loss of energyVSAdaptability or versatility

Solution Approach 1:

The system dynamically switches between multicast and unicast transmission modes based on real-time viewing patterns and network conditions. The virtual STB application monitors the number of devices viewing the same content and adapts the transmission method accordingly, transitioning from static to dynamic resource allocation to optimize bandwidth efficiency across varying network states.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the transmission parameter (multicast vs. unicast) based on the viewing audience size. When multiple devices view the same content, multicast is used to conserve bandwidth; when viewing drops to fewer devices, unicast is employed to ensure optimal resource allocation. This parameter switching resolves the contradiction between bandwidth efficiency and allocation adaptability.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If unicast transmission is used to deliver video content to mobile devices, then network resource allocation flexibility is improved, but bandwidth efficiency deteriorates when multiple devices view the same content

Engineering Contradiction:
Improvenetwork resource allocation flexibilityVSAvoidbandwidth efficiency
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The system employs dynamic transmission mode selection that adapts to real-time viewing patterns. The virtual STB application continuously monitors content popularity and switches between unicast and multicast modes, ensuring that unicast flexibility is utilized only when necessary (low viewing numbers) while multicast efficiency dominates during high-demand scenarios.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The transmission method parameter is changed based on the number of concurrent viewers. When the viewing audience exceeds a threshold, the system transitions from unicast to multicast to improve bandwidth efficiency. This conditional parameter change resolves the contradiction by applying unicast flexibility only when it does not waste bandwidth resources.

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If static transmission method is used without adaptive switching, then system complexity is reduced, but network resource utilization efficiency deteriorates

Engineering Contradiction:
Improvetransmission control complexityVSAvoidnetwork resource utilization efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The virtual STB application on mobile devices performs self-monitoring of viewing patterns and automatically triggers transmission mode switches without requiring complex centralized control. Each device reports its viewing status, and the system autonomously decides between multicast and unicast based on aggregated data, reducing control complexity while maintaining high resource utilization efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements feedback mechanisms where the virtual STB application continuously monitors viewing patterns and feeds this information back to the transmission control logic. This feedback loop enables automatic adaptation between multicast and unicast modes, achieving high resource utilization without requiring complex manual configuration or centralized control overhead.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS8817684B2Adaptive mobile multicasting for wireless networks
Publication Date: 2014.08.26 VERIZON PATENT & LICENSING INC
  • US8817684B2 patent drawing
  • US8817684B2 patent drawing
  • US8817684B2 patent drawing

AI summary

Video streams may be adaptively switched between multicast and unicast transmission over a wireless interface of a wireless network. A device may track a quantity of videos that are being streamed over the wireless network. The device may determine, based on the tracked quantity of videos, whether to dedicate a radio channel, of at least one cell in the wireless network, to streaming a first of the videos. The device may transmit, in response to a request, from a mobile device, for the first video, an identification of the dedicated radio channel so that the mobile device can receive the first video as a streaming video over the dedicated radio channel.