Frequency Band Scan Order Optimization for Network Selection
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Solution Overview
Problem
Current electronic devices spend significant time performing full band scans to find a suitable network, especially when they lack stored data for a default network, leading to inefficient network selection.
Innovation Solution
The electronic device optimizes the band scan order by using locally-stored location data, such as mobile country codes, to prioritize frequency bands most likely used in the device's region, placing them at the beginning of the scan order, and adjusting the order based on recent network connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a full band scan is performed in default serial order, then all supported channels are scanned to identify a preferred network, but the scan time takes up to several minutes
Solution Approach 1:
The patent applies preliminary action by using location data (such as GPS coordinates or cell tower triangulation) to pre-determine which frequency bands are most likely to contain available networks in the device's current geographic area. This allows the scan to start with the most promising bands already identified, rather than scanning all bands in a fixed default order, thereby reducing scan time while maintaining reliable network identification.
Solution Approach 2:
The patent implements dynamics by making the scan order adaptive rather than static. The scan sequence is dynamically adjusted based on real-time location information and historical data about network availability in different regions. This dynamic reordering allows the system to prioritize bands that are geographically relevant to the current location, significantly reducing the time needed to identify available networks compared to a fixed serial scan of all bands.
2Productivity
If the scan order is reprogrammed to optimize scanning, then fewer channels need to be scanned before reaching an interruption point, but it requires a high level of knowledge and is not convenient
Solution Approach 1:
The patent applies self-service by automatically generating the optimized scan order using location data and network availability information, without requiring user intervention or manual configuration. The system autonomously determines which frequency bands to prioritize based on geographic location and historical network data, eliminating the need for users to have specialized knowledge to configure scan parameters while maintaining high scan efficiency.
Solution Approach 2:
The patent implements parameter changes by dynamically adjusting the scan order parameters based on location data. Instead of requiring manual reprogramming of scan sequences, the system automatically modifies the scan parameters (band priorities, scan sequence) based on real-time location information and stored network availability data, making the optimization process transparent and easy to use while maintaining high productivity.
Data Source
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AI summary
Locally available location data is analyzed to identify a country or region of the world in which an electronic device (10) is most likely being used. From the identified country or region, the electronic device configures a band scan order for a prioritized full band scan of channels supported by the electronic device. As part of the configuration, the electronic device places the frequencies most likely to be used for radio access technology in the identified country or region at the beginning of the band scan order.