FLUTE Protocol Session Parameter Extraction for Mobile Receivers

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Solution Overview

Problem

In wireless communication systems, existing protocols like FLUTE struggle to provide mobile receivers with essential parameters for broadcast/multicast sessions, such as Forward Error Correction, congestion control, and content description, leading to incomplete functionality in data transmission.

Innovation Solution

A method using the Session Description Protocol (SDP) to communicate session parameters like FEC encoding schemes, congestion control, and error thresholds to receivers, ensuring proper data transmission and error recovery mechanisms are in place.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the FLUTE protocol is used for broadcast/multicast transmission, then data delivery is achieved, but essential session parameters (FEC, congestion control, error thresholds) cannot be provided to mobile receivers

Engineering Contradiction:

Improvesession parametersVSAvoidprotocol compatibility

Core Design Contradiction:

Loss of informationVSAdaptability or versatility

Solution Approach 1:

The patent introduces an intermediary mechanism that bridges the FLUTE protocol and mobile receivers. Session parameters are extracted from FLUTE protocol data units and re-transmitted to mobile receivers through a compatible interface, allowing parameter communication without requiring mobile receivers to fully support FLUTE protocol

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the parameter transmission process into separate components. Session parameters are extracted as distinct elements from the FLUTE protocol data flow and transmitted independently to mobile receivers, allowing selective parameter communication without requiring complete protocol compatibility

Inventive Principle:

Principle #1Segmentation

2Reliability

If session parameters are communicated to mobile receivers, then data transmission reliability is improved, but protocol complexity increases

Engineering Contradiction:

Improvedata deliveryVSAvoidprotocol implementation

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts only the essential session parameters (FEC encoding schemes, congestion control parameters, error thresholds) from the complex FLUTE protocol framework and transmits them separately to mobile receivers. This extraction approach provides necessary reliability information without requiring mobile receivers to implement the complete FLUTE protocol complexity

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUSRE45352E1Conveying parameters for broadcast/multicast sessions via a communication protocol

Publication Date: 2015.01.20 NOKIA CORP

AI summary

This invention relates to a method, a computer program, a computer program product, a system, a sender, a receiver and a session description protocol for transmitting common data from one sender (902) to a plurality of receivers (901) within a transmission session, comprising communicating (802) at least one session parameter, which is related to said transmission of said common data within said transmission session, to said plurality of receivers (901) via a communication protocol; and transmitting said common data from said sender (902) to said plurality of receivers (901) within said transmission session. The invention particularly relates to broadcast/multicast transmission of common data in a wire-bound and/or wireless network, wherein a File Delivery over Unidirectional Transport FLUTE protocol is used.