Centralized Media Controller in Trusted Security Sector
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Solution Overview
Problem
Current mobile access terminals lack robust security and efficient communication capabilities, particularly in providing secure connectivity and reducing network resource consumption for device-to-device communications within internet protocol multimedia systems.
Innovation Solution
A mobile access terminal with a trusted security sector containing a centralized media controller application that authenticates device applications and provides secure connectivity, utilizing a trust exchange service to manage communications and implement reduced call session control functionality, enabling device-to-device voice calls without base transceiver station involvement and conserving network resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If device applications are allowed to communicate freely with the IMS network, then communication functionality is improved, but security vulnerability increases
Solution Approach 1:
The centralized media controller application serves as an intermediary between device applications and the IMS network. It receives requests from device applications, authenticates them, and manages communications with the network, thereby protecting the network from direct exposure to potentially malicious device applications while maintaining communication functionality
Solution Approach 2:
The system segments security responsibilities by placing the centralized media controller in a trusted security sector separate from device applications. This segmentation allows device applications to communicate with the network through a controlled interface, improving security without sacrificing communication capabilities
2Reliability
If traditional call session control is used for all communications, then network coverage is improved, but network resource consumption increases
Solution Approach 1:
The system dynamically selects communication paths based on conditions. When device-to-device communication is feasible and secure, it bypasses traditional base transceiver station pathways. When network coverage or security requirements demand, it falls back to traditional IMS network pathways, optimizing resource consumption while maintaining reliability
Solution Approach 2:
The patent extracts call session control functionality from the network infrastructure and places it locally in the trusted security sector of mobile access terminals. This extraction enables local decision-making for device-to-device communications, reducing the need for network resource consumption while maintaining coverage through fallback options
Data Source
AI summary
A mobile access terminal (MAT) for use in an internet protocol multimedia system (IMS). The mobile access terminal comprises a first region of memory, a device application stored in the first region of memory, a second region of memory that implements a trusted security sector, and a centralized media controller application stored in the trusted security sector. The centralized media controller application is mated and paired with an incident internet protocol multimedia system network and wherein the centralized media controller application authenticates the device application and provides the device application with communications connectivity with the incident internet protocol multimedia system network.