FOTA Server Modifies MTC Discontinuous Reception Timers
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Solution Overview
Problem
Current technologies face challenges in managing firmware updates for Machine Type Communication (MTC) devices, particularly in 5G networks, due to their low power consumption and infrequent use patterns, which limits the time these devices are reachable for over-the-air updates, making it difficult to perform firmware upgrades, security patches, or provisioning changes.
Innovation Solution
The implementation of a system that modifies discontinuous reception parameters of MTC devices to keep them connected longer, allowing for extended periods to download FOTA packages by using custom extended idle-mode discontinuous reception timers and power saving mode adjustments, along with an AI component for automating the process and optimizing network resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If MTC devices use low power consumption and infrequent use patterns, then battery life and energy efficiency are improved, but the time devices are reachable for OTA updates is reduced
Solution Approach 1:
The network performs preliminary actions by modifying DRX parameters before the actual firmware update. When a device is identified as needing an update, the network proactively adjusts the discontinuous reception timer to extend the device's reachable window, ensuring the device remains awake long enough to receive and install the firmware update without requiring continuous power consumption during the update process itself
2Duration of action of moving object
If DRX timer is extended to keep devices connected longer, then firmware update time is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts the DRX timer duration based on the specific needs of each device and the size/importance of the firmware update. Rather than using a fixed extended timer, the network modifies the parameter adaptively - extending it only when and where needed for firmware updates, and maintaining normal power-saving behavior for routine operations. This dynamic adjustment allows the system to balance connection duration with power consumption on a per-case basis
Data Source
AI summary
A more efficient over-the-air software push can be facilitated by a firmware over-the-air (FOTA) server device in communication with a home subscriber server (HSS). For example, the FOTA server can host the names of user equipment devices that are due for a FOTA update. When a user equipment device identification is received from the HSS, the FOTA server can then check the user equipment device identification against the names within the server. If the name is found, then the system can send discontinuous reception data to the user equipment device to modify a current discontinuous reception value of the user equipment device. Thus, the modified discontinuous reception value can prompt a long reception time of the user equipment device such that the user equipment device can receive the FOTA.