Dynamic P2P to MBMS Streaming Switching for Mobile Network Resource Optimization

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Solution Overview

Problem

Conventional P2P-based streaming systems in mobile networks face challenges such as high power consumption, excessive signaling messages, and inefficient resource usage due to dynamic changes in the number of peers receiving the same content, leading to bottlenecks and suboptimal network resource utilization.

Innovation Solution

A method and system that dynamically switch between P2P-based streaming and MBMS-based streaming in a radio communication network by counting peers in a broadcast area and switching from P2P to MBMS when the number of peers exceeds a predetermined threshold, utilizing a device connected to core network components and an MBMS control system to optimize resource usage and avoid bottlenecks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If P2P-based streaming is used in mobile networks, then scalability and flexibility are improved, but power consumption and signaling overhead increase significantly

Engineering Contradiction:

ImprovescalabilityVSAvoidpower consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The system dynamically switches between P2P and MBMS streaming modes based on the number of peers in the broadcast area. When peer count exceeds a threshold, the system transitions from P2P to MBMS mode, and vice versa. This dynamic adaptation resolves the contradiction by selecting the most energy-efficient mode based on real-time network conditions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the streaming mode parameter (P2P vs MBMS) based on the peer count parameter. By monitoring the number of peers and adjusting the streaming mode accordingly, the system optimizes power consumption while maintaining scalability benefits.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If P2P-based streaming is used in mobile networks, then scalability is improved, but signaling message overhead increases

Engineering Contradiction:

ImprovescalabilityVSAvoidsignaling messages

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The system dynamically adjusts the streaming mode based on peer count, switching from P2P to MBMS when signaling overhead becomes excessive. This resolves the contradiction by reducing signaling message quantity while preserving scalability through mode switching.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system introduces MBMS as an intermediary mode that can replace P2P streaming when peer count is high. MBMS acts as a mediator that reduces signaling overhead while maintaining the ability to serve multiple peers, thus resolving the contradiction between scalability and signaling overhead.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Loss of energy

If MBMS is used for data service, then radio resource efficiency is improved, but flexibility to handle varying peer numbers decreases

Engineering Contradiction:

Improveradio resource efficiencyVSAvoidflexibility

Core Design Contradiction:

Loss of energyVSAdaptability or versatility

Solution Approach 1:

The system dynamically switches between MBMS and P2P modes based on peer count. When peer count is low, it uses P2P mode for flexibility; when peer count is high, it switches to MBMS for radio resource efficiency. This dynamic switching resolves the contradiction by adapting to varying peer numbers.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system makes the streaming infrastructure universal by supporting both P2P and MBMS modes. This multi-functionality allows the system to achieve radio resource efficiency through MBMS while maintaining flexibility through P2P, resolving the contradiction between these two requirements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Use of energy by moving object

If a mobile deputy is deployed to optimize P2P streaming, then power consumption is reduced, but system scalability is limited due to deputy bottleneck

Engineering Contradiction:

Improvepower consumptionVSAvoidscalability

Core Design Contradiction:

Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The system introduces MBMS as an intermediary that can handle large numbers of peers without creating a bottleneck. When peer count exceeds the deputy's capacity, the system switches to MBMS mode, which can efficiently serve many peers simultaneously. This resolves the contradiction by providing a scalable alternative to the deputy architecture.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system dynamically switches from deputy-based P2P optimization to MBMS based on peer count thresholds. This dynamic approach resolves the contradiction by selecting the appropriate architecture (deputy or MBMS) based on scalability requirements while maintaining power consumption benefits.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS9787734B2Methods and devices for switching between peer-to-peer and multimedia broadcast multicast service

Publication Date: 2017.10.10 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

Methods and radio communication network systems enable switching between P2P-based streaming and MBMS-based streaming depending on a number of peers in the same area, streaming the same content and having an MBMS-based streaming capability.