Mobile Device RF Band Scanning Optimization
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Solution Overview
Problem
Mobile devices face prolonged scanning times for available RF bands when powered on or toggled out of airplane mode, leading to a poor user experience due to the proliferation of radio frequencies and roaming agreements, which existing technologies have not effectively addressed.
Innovation Solution
The mobile device prioritizes and selectively scans RF bands based on geolocation coordinates and signal quality, using the last known network cell parameters and UICC instructions to quickly reconnect to the strongest network cell, and performs multiple scans to identify and connect to the preferred band with the best signal quality and bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile device scans through all available RF bands using a hardcoded list, then the device ensures comprehensive network coverage and reliability, but the scanning process takes a prolonged period of time resulting in poor user experience
Solution Approach 1:
The patent applies preliminary action by pre-obtaining band information from the UICC card before performing the full scanning process. The UICC contains pre-configured band data that allows the mobile device to skip the time-consuming process of scanning all possible RF bands sequentially. By having this information prepared in advance, the device can quickly connect to available networks while maintaining reliability through verification against the pre-stored band list.
2Reliability
If the mobile device scans through all supported RF bands, then the device ensures connection to the strongest network signal, but the proliferation of radio frequencies and roaming agreements increases the scanning duration
Solution Approach 1:
The patent uses preliminary action by pre-loading band information from the UICC card, which contains authoritative network band data provided by the carrier. This allows the device to prioritize bands that are known to be available and reliable, rather than blindly scanning all possible frequencies. The pre-obtained information guides the scanning process to focus on relevant bands, ensuring connection to strong signals while reducing overall scanning time.
3Adaptability or versatility
If the mobile device performs a full scan of all RF bands, then the device ensures complete network availability, but the process is time-consuming and impacts user experience
Solution Approach 1:
The patent applies preliminary action by obtaining band information from the UICC card before the scanning process begins. This pre-acquired information contains the set of bands that the device should scan, filtered and optimized by the carrier. By having this preliminary band list ready, the device maintains adaptability to various network environments while significantly reducing the scanning duration compared to scanning all possible RF bands without guidance.
Data Source
AI summary
Techniques are described herein for optimizing band scanning for one or more bands supported by a mobile device for connection to a wireless network. The techniques include determining geolocation coordinates corresponding to a real-time location of a mobile device. The mobile device may identify at least one available radio frequency (RF) band supported by the mobile device based at least on the geolocation coordinates. In some aspects, the mobile device may determine whether a signal quality of the available RF band is above a predetermined threshold. If the signal quality of the available RF band is above the predetermined threshold, the mobile device may selectively prioritize a scan for support by a wireless network of the available RF band and connect to the wireless network using the available RF band.