Location-Matrix Band Scanning for Low-Power Network Detection
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Solution Overview
Problem
Electronic devices frequently search for networks with disparate coverage areas, leading to excessive energy consumption and reduced battery life, particularly in mixed 5G networks with varying frequency bands.
Innovation Solution
Implementing location-matrix based scanning where geographic indicators, such as circles or polygons, are sent to the device via a wider coverage network to activate radios only when entering or approaching smaller coverage areas, reducing unnecessary radio activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device frequently checks the smaller coverage area network's radio band to determine availability, then the device can detect the more desirable network when available, but significant energy is consumed and battery life is reduced
Solution Approach 1:
The wider coverage area network provides geographic indicators (coverage descriptors) in advance that describe where the smaller coverage area network signal is available. This preliminary information allows the electronic device to activate the corresponding radio only when it is in or about to enter the specified coverage area, rather than requiring continuous frequent checking.
Solution Approach 2:
The wider coverage area network acts as an intermediary that provides geographic indicator information about the smaller coverage area network's availability. This intermediary information enables the electronic device to make informed decisions about when to activate the radio for the smaller coverage network, reducing unnecessary energy consumption.
2Productivity
If the radio for the smaller coverage network is frequently powered on to check for signal, then the device can determine network availability, but energy consumption increases and battery life decreases
Solution Approach 1:
Geographic indicators describing the coverage area are provided in advance through the wider coverage network, allowing the device to plan radio activation timing optimally and avoid unnecessary power-on cycles.
Solution Approach 2:
Instead of continuous or frequent periodic checking, the system uses location-based triggering to activate the radio only when needed based on the device's geographic position relative to the coverage area descriptors.
3Adaptability or versatility
If the electronic device continuously scans for available networks in all frequency bands, then it can find the most favorable network, but the scanning process consumes excessive energy
Solution Approach 1:
The system applies different scanning behaviors to different frequency bands based on their coverage characteristics. For the smaller coverage area network, the device uses location-based triggering to activate the radio only when geographic indicators suggest the device is in or approaching the coverage area, rather than continuous scanning.
Solution Approach 2:
The network scanning approach is made dynamic by adjusting radio activation based on real-time location information and coverage descriptors, transitioning from static continuous scanning to adaptive location-based scanning.
Data Source
AI summary
An electronic device configured to operate in two frequency bands having significantly different coverage areas receives coordinates associated with a smaller coverage area over a frequency band having a larger coverage area. The coordinates allow the electronic device to only power up the associated radio and search for a base station of the smaller coverage area when the electronic device is in the area described by the coordinates. This allows the electronic device to achieve significant power savings compared to even infrequent random polling to determine when a base station of the smaller coverage area radio system is available.