Shared SIM Parameter for Machine Type Communication Cost Reduction
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Solution Overview
Problem
Current machine type communication technologies, such as cellular networks, are costly for wide-area coverage due to high equipment and subscription costs, especially for low-data monitoring systems.
Innovation Solution
Implementing a shared subscriber identity module (SIM) parameter among multiple devices for machine type communication, which reduces the cost of access by using a reduced set of circuit components and a simplified communication protocol, and enhances security through authentication and access server authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If cellular technology is used for wide-area machine type communication, then coverage area is improved, but cost increases significantly
Solution Approach 1:
Multiple MTC devices share a common SIM parameter, merging their access credentials into a single shared identity. This allows multiple devices to access the cellular network simultaneously using one SIM profile, reducing the need for individual SIM cards and associated costs for each device while maintaining wide-area coverage.
Solution Approach 2:
The shared SIM parameter serves multiple MTC devices universally, allowing a single SIM credential to function for authentication and access control across numerous devices. This multi-functional approach eliminates the need for device-specific SIM cards, reducing manufacturing costs while preserving network access capabilities.
2Reliability
If individual SIM cards are used for each MTC device, then authentication security is improved, but device complexity and cost increase
Solution Approach 1:
The authentication credentials of multiple devices are merged into a single shared SIM parameter. This consolidation maintains authentication security by using a standardized SIM-based authentication mechanism while reducing device complexity by eliminating individual SIM card requirements for each MTC device.
3Adaptability or versatility
If full cellular modem functionality is implemented, then communication capability is improved, but cost and power consumption increase
Solution Approach 1:
The patent extracts only the essential authentication function (SIM parameter) from the full cellular modem functionality. MTC devices can share the SIM parameter for network access without requiring complete cellular modem stacks, reducing hardware complexity and cost while maintaining sufficient communication capability for machine-type applications.
Solution Approach 2:
The shared SIM parameter approach uses a simpler, more economical access method compared to full cellular modems. By using shared credentials and simplified communication protocols, the system achieves acceptable communication capability at lower cost and reduced power consumption, suitable for the specific needs of MTC devices.
Data Source
AI summary
A method for establishing a machine type communication includes receiving a connection request for a machine type communication from a device. The connection request includes an authentication credential for the device. A shared subscriber identity module (SIM) parameter for the machine type communication is obtained based on the authentication credential.