MCData Regroup Communication Through SIP Header Routing

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

There is no existing procedure in 3GPP MCS standard for initiating MCData communication between a communication group to which a client belongs and another group to which the client does not necessarily belong.

Innovation Solution

A method is provided to initiate MCData communication within a regroup of communication groups by transmitting SIP requests with specific header fields to identify and authorize client entities, involving participating and non-controlling servers to manage and distribute the communication requests according to the 3GPP MCS standard.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If MCData communication is initiated within a regroup of communication groups according to existing 3GPP MCS standard procedures, then communication can be established within a single communication group, but no procedure exists to initiate communication across multiple communication groups (regroup)

Engineering Contradiction:

Improvecapability to initiate MCData communication across multiple communication groupsVSAvoidcomplexity of communication initiation procedure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a Controlling Server as an intermediary component that mediates MCData communication initiation across multiple communication groups. The Controlling Server receives the initial MCData request, identifies the target regroup of communication groups, determines the appropriate destination groups, and coordinates the forwarding of communication requests to participating servers in those groups. This intermediary architecture enables cross-group communication without requiring complex peer-to-peer coordination between client entities and multiple participating servers.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If existing SIP request formats are used for MCData communication initiation, then simple single-group communication can be established, but requests cannot properly identify or route to multiple communication groups within a regroup

Engineering Contradiction:

Improveability of SIP requests to identify and route to multiple communication groupsVSAvoidloss of group identification information in communication requests

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent implements a nested information structure where communication group identifiers and regroup identifiers are embedded within SIP request header fields. The SIP request contains nested identification data that allows the Controlling Server to extract and process information about multiple target communication groups. This nesting approach enables rich group identification capabilities while maintaining the standard SIP request format structure.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS12418786B2Method for initiating MCData communication within a regroup of communication groups in a 3GPP MCS network

Publication Date: 2025.09.16 AIRBUS DS SLC

AI summary

A method for initiating an MCData communication within a regroup of communication groups, the method being implemented by a network according to the 3GPP MCS standard, wherein an MCData communication may include short data messages or file distribution. In addition, some information is added in the different transmissions to allow additional verifications by the different entities.