Vehicle Electronic Device Network Search Optimization
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Solution Overview
Problem
Vehicle-mounted electronic devices face challenges in efficiently searching for higher priority Public Land Mobile Networks (PLMNs) while maintaining network connectivity, especially when operating in sleep mode with network access devices always on.
Innovation Solution
The electronic device monitors the network access device's operation mode and identifies the current network state, adjusting the search cycle for PLMNs accordingly. When the device enters a preset operation mode, it changes the search strategy to optimize power consumption and connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network access device remains activated while the processor is in sleep mode, then connectivity is maintained, but power consumption increases
Solution Approach 1:
The system is divided into two independent operational components: the processor that can enter sleep mode, and the network access device that remains activated. This segmentation allows the processor to conserve power while the network access device independently maintains connectivity, resolving the contradiction between power consumption and connectivity reliability.
Solution Approach 2:
The system dynamically adjusts its operational state by allowing the processor to transition between active and sleep modes while the network access device maintains a persistent active state. This dynamic configuration enables the system to optimize power consumption without sacrificing connectivity, as the network access device can wake the processor when needed.
2Reliability
If the electronic device performs frequent PLMN searches, then network priority optimization is improved, but power consumption and processing overhead increase
Solution Approach 1:
The system implements periodic PLMN searches instead of continuous searching. The network access device performs PLMN searches at predetermined intervals while operating in sleep mode, rather than continuously monitoring all available networks. This periodic approach maintains network priority optimization while significantly reducing power consumption and processing overhead compared to continuous searching.
3Speed
If the processor remains active to manage network searches, then search responsiveness is improved, but power consumption increases
Solution Approach 1:
The system separates the processor's responsibilities by allowing it to enter sleep mode while the network access device independently handles PLMN search operations. The processor is segmented from the continuous network monitoring function, enabling it to conserve power while the network access device maintains search responsiveness through periodic wake-ups and autonomous search execution.
Solution Approach 2:
The network access device is empowered to autonomously perform PLMN searches without requiring the processor to remain continuously active. The device serves itself by independently managing search operations, wake schedules, and network evaluations, thereby maintaining search responsiveness while allowing the processor to enter low-power states.
Data Source
AI summary
A vehicular electronic device and method thereof are disclosed herein. The electronic device includes memory, a network access device and a processor. The processor implements the method, including: monitoring, via at least one processor, whether a network access device of the electronic device enters a preset operation mode in which the network access device remains activated while a processor of the electronic device is in a sleep mode, based on detecting that the network access device enters the preset operation mode, identifying a network state of the network access device, based at least on the network state of the network access device, changing a search cycle of a network search as executed by the network access device, and executing the network search based on the changed search cycle.