Multi-Carrier Open Group Chat NNI Verification
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Solution Overview
Problem
Open group chat sessions between mobile devices registered to different telecommunications networks fail to resume when not all networks have a network-to-network interface (NNI) agreement, leading to unexplained failures and reduced user experience.
Innovation Solution
A protocol that checks for NNI agreements between all implicated networks before initiating an open group chat, using alternative messaging services like MMS or closed group chat if any network lacks an NNI agreement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If open group chat is initiated between mobile devices registered to different networks without verifying NNI agreements, then the chat can be started with more network compatibility, but the chat session will fail to resume when networks lack NNI agreements
Solution Approach 1:
The patent applies preliminary action by checking for NNI agreements between all implicated networks before initiating the open group chat session. The system proactively verifies network compatibility and establishes the necessary interface agreements in advance, preventing future session resumption failures rather than reacting to them afterward.
Solution Approach 2:
The patent introduces an intermediary verification mechanism that acts as a mediator between multiple networks. This intermediary check ensures that all networks have the necessary NNI agreements in place before allowing the chat to proceed, facilitating reliable communication across network boundaries without requiring direct peer-to-peer agreements between all participating networks.
2Reliability
If NNI agreement verification is performed before initiating open group chat, then chat session reliability is improved, but the protocol complexity increases
Solution Approach 1:
The patent applies self-service by having the initiating mobile device automatically perform NNI agreement verification with the network before starting the chat session. The system serves itself by autonomously checking network compatibility requirements without requiring manual intervention or complex user-side protocol implementation, thereby improving reliability while keeping device complexity manageable.
Data Source
AI summary
An open group chat (OGC) session is initiated between mobile devices registered to different telecommunications networks by first verifying whether each implicated network has a network-to-network interface (NNI) agreement with each other network. A first mobile device receives a request to initiate an OGC session between the first mobile device, a second mobile device registered to a second telecommunications network, and a third mobile device registered to a third telecommunications network. The first device determines, based on a response received from the second network, if an operator of the second network and an operator of the third network have an NNI agreement. If the received response indicates the operators of the second and third networks do not have an NNI agreement, the first mobile device sends a non-OGC message, such as a multimedia messaging service (MMS) message or a closed group chat (CGC) message, to the second and third devices.