Gateway Device Dynamic Network Handover Using Cached Lists
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Solution Overview
Problem
Current network handover systems for fleet management devices are inefficient due to static and time-consuming transitions between primary and backup SIMs, leading to sub-optimal network connectivity and increased power consumption, as they fail to provide dynamic and flexible handovers based on location and network preferences.
Innovation Solution
A gateway system with a communication module that includes primary and secondary network subscription identifiers, allowing for dynamic activation and handovers by scanning available networks, disconnecting from a secondary network, and reconnecting to a primary network based on cached lists and network characteristics, ensuring optimal connectivity and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static network handover between primary and backup SIMs is implemented, then network connectivity is maintained, but handover time increases and power consumption increases
Solution Approach 1:
The system performs preliminary actions by maintaining a cached list of networks associated with the primary SIM before handover is needed. When the primary SIM becomes unavailable, the device can quickly switch to the backup SIM and immediately retrieve the pre-cached network list, avoiding time-consuming network scanning and acceleration the handover process while maintaining connectivity reliability.
2Reliability
If static network handover between primary and backup SIMs is implemented, then network connectivity is maintained, but power consumption increases
Solution Approach 1:
The system performs preliminary actions by maintaining a cached list of networks associated with the primary SIM before handover is needed. When the primary SIM becomes unavailable, the device can quickly switch to the backup SIM and immediately retrieve the pre-cached network list, avoiding time-consuming network scanning and acceleration the handover process while maintaining connectivity reliability.
Solution Approach 2:
The system continuously monitors network availability and signal quality of the primary SIM. When the primary SIM becomes unavailable or signal quality drops below a threshold, the system triggers a handover to the backup SIM. After handover, the system continues monitoring and can switch back to the primary SIM when it becomes available again, creating a feedback loop that optimizes power consumption by minimizing unnecessary network scanning and handovers.
3Reliability
If dynamic network scanning and handover is implemented, then optimal network connectivity is achieved, but device complexity increases
Solution Approach 1:
The system performs preliminary actions by maintaining a cached list of networks associated with the primary SIM before handover is needed. When the primary SIM becomes unavailable, the device can quickly switch to the backup SIM and immediately retrieve the pre-cached network list, avoiding time-consuming network scanning and acceleration the handover process while maintaining connectivity reliability.
Solution Approach 2:
The system uses a cached network list as an intermediary data structure that simplifies the handover process. Instead of performing complex real-time network scanning and evaluation, the device relies on the pre-computed cached list to quickly identify available networks after switching SIMs, reducing the computational complexity and processing requirements of the handover system.
Data Source
AI summary
A gateway device for providing a dynamic network activation and/or handover is disclosed herein. The gateway device may activate on a first network associated with a primary network subscription identifier and determine to switch to a secondary network associated with a secondary network subscription identifier. The gateway device may disconnect from the first network and activate on the secondary network. The gateway device may access a cached list of networks for the primary network subscription identifier and scan for available networks while active on the secondary network. Based at least in part on the scan, the gateway device may determine that a second network of the cached list of networks is available. In response, the gateway device can disconnect from the secondary network and connect to the second network.