Sensor-Based Network Access Control for IoT Resource Efficiency
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Solution Overview
Problem
In cyber-physical control applications, consumer Internet of Things (IoT) devices in vertical domains, such as smart factories, inefficiently consume resources as they are designed to transmit and receive data constantly, leading to unnecessary resource usage.
Innovation Solution
An apparatus and method that utilize a sensor-based network access control system, where an Access and Mobility Management Function Module (AMF) provides permissible sensor information to user equipment (UE), allowing network access only when specific sensor conditions are met, enabling the UE to operate in an idle mode until necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices are designed to transmit and receive data constantly, then data transmission reliability is improved, but resource consumption increases
Solution Approach 1:
The patent implements dynamic network access control by transitioning devices between inactive/idle modes and active modes based on sensor-triggered conditions. Devices dynamically adjust their operational state rather than maintaining constant connectivity, resolving the contradiction between reliability and resource consumption.
Solution Approach 2:
The system changes the operational parameter of network access from constant connectivity to conditional connectivity based on sensor values. By modifying the access state parameter dynamically according to sensor-triggered conditions, the system maintains reliability when needed while reducing resource consumption during normal operation.
2Use of energy by moving object
If devices enter inactive or idle mode to save resources, then resource efficiency is improved, but response time increases
Solution Approach 1:
The system performs preliminary actions by pre-configuring sensor-triggered conditions and permissible sensor lists before devices enter idle mode. When sensor conditions are met, devices can quickly transition to active mode without extensive negotiation, reducing response time while maintaining resource efficiency during idle periods.
Solution Approach 2:
The system implements feedback mechanisms where sensor values continuously monitor environmental conditions and trigger network access when predetermined conditions are satisfied. This feedback loop ensures devices remain in energy-saving modes until actual service needs arise, at which point rapid response is enabled through pre-configured access permissions.
3Use of energy by moving object
If sensor-based access control is implemented, then resource consumption is reduced, but system complexity increases
Solution Approach 1:
The patent extracts the access control logic from complex continuous negotiation processes and consolidates it into predefined sensor-triggered conditions and permissible sensor lists. By separating the access decision-making into pre-configured rules rather than dynamic negotiations, the system reduces resource consumption while managing complexity through structured simplification.
4Reliability
If devices maintain constant network connectivity, then service availability is improved, but unnecessary resource usage increases
Solution Approach 1:
The system implements periodic sensor monitoring and conditional network access rather than constant connectivity. Devices periodically check sensor values against predetermined conditions and only activate network access when conditions are satisfied, eliminating unnecessary resource usage while maintaining service availability when actually needed.
Data Source
AI summary
An apparatus for controlling network access includes an access and mobility management function module (AMF) and a performance management module. The AMF provides, to a user equipment (UE), information about permissible sensors supporting a sensor-based network access from among sensors possessed by the UE. The performance management module stores the permissible sensor information. Upon receiving a list of the sensors possessed by the UE from the UE, the AMF extracts, from the performance management module, the permissible sensor information including a list of the permissible sensors and a permissible condition for permitting network access through the permissible sensors.