Dynamic Polling Frequency Adjustment for IoT Location Tracking
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Solution Overview
Problem
The increasing number of terminal devices in IoT systems is causing a significant load on mobile communication networks due to high signaling traffic required for real-time location information, which may become unmanageable as millions more devices are deployed, posing challenges for telecom operators.
Innovation Solution
A method and system that optimize polling of location information by adjusting polling frequencies based on terminal device movement, where a network node receives data on user plane traffic and adjusts polling frequency to zero when the device is stationary, reducing unnecessary load and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous polling is performed to obtain real-time location information of terminal devices, then location monitoring accuracy and responsiveness are improved, but network load and signaling traffic increase significantly
Solution Approach 1:
The polling frequency is made dynamic rather than static. The network node adjusts the polling frequency based on the terminal device's movement status, using higher frequencies when the device is moving and lower or zero frequencies when stationary, thereby optimizing the balance between location monitoring accuracy and network load
Solution Approach 2:
The polling frequency parameter is changed based on detected movement conditions. The network node modifies this parameter dynamically, switching between different polling frequencies (including zero) according to whether the terminal device is detected to be moving or stationary, thus adapting the monitoring intensity to actual needs
2Loss of time
If polling frequency is increased to obtain real-time location updates, then location information freshness is improved, but network resources are consumed excessively
Solution Approach 1:
The system dynamically adjusts polling frequency based on real-time detection of terminal device movement. When movement is detected, the network switches to a higher polling frequency to maintain fresh location information. When the device is stationary, the polling frequency is reduced to zero, eliminating unnecessary network resource consumption
Solution Approach 2:
The network node uses feedback from movement detection to control the polling process. The detection results serve as feedback that triggers appropriate polling frequency adjustments, ensuring location information is updated only when necessary (when the device moves), thereby optimizing the balance between information freshness and network resource usage
Data Source
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AI summary
The invention relates to a method for optimizing a polling of location information of a terminal device (110), the method, performed by a network node (120), comprises: receiving, from the terminal device (110), data indicative of a movement of the terminal device (110), the data is received in a payload traffic on a user plane; detecting (320) that the movement of the terminal device (110) is within a reference range, a detection (320) is based on data received from the terminal device (110); generating (330) a first control signal for re-defining a first polling frequency to occur at a second polling frequency, the second polling frequency being less than the first polling frequency.