Adaptive Wireless Signal Power for More Accurate Device Location
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Solution Overview
Problem
Existing location determining methods for electronic devices suffer from significant location errors of tens of meters due to the use of a single intensity short-range wireless communication signal, leading to inaccurate location determination.
Innovation Solution
The electronic device dynamically adjusts the output intensity of short-range wireless communication signals based on battery state and wireless communication link state, transmitting signals with varying intensities to improve location accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single intensity short-range wireless communication signal is transmitted for location determination, then the device operation is simple, but the location accuracy deteriorates with errors of tens of meters
Solution Approach 1:
The patent segments the location determination process by transmitting multiple short-range wireless communication signals with different output intensities (first signal with first intensity, second signal with second intensity). This segmentation allows the system to gather more comprehensive signal strength information from multiple intensity levels, thereby improving location accuracy while managing device complexity through systematic signal transmission protocols
Solution Approach 2:
The patent applies parameter changes by varying the output intensity parameter of the short-range wireless communication signals. By transmitting signals at different intensity levels and analyzing the corresponding signal strength indicators (SSIs), the system can more accurately determine location. This parameter variation resolves the contradiction by improving measurement precision through multiple intensity measurements while maintaining reasonable device complexity through automated processing
2Measurement precision
If multiple signals with different intensities are transmitted to improve location accuracy, then the location precision improves, but the device complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where the electronic device receives signal strength indicators (SSIs) corresponding to each transmitted signal intensity, analyzes these feedback signals, and uses them to determine location. The system also considers battery state feedback to dynamically adjust transmission strategies. This feedback loop enables accurate location determination through multiple intensity signals while managing device complexity through intelligent, adaptive processing
Solution Approach 2:
The patent applies dynamics by making the signal transmission adaptive rather than static. The system dynamically adjusts which signals to transmit and how to process them based on battery state and received signal conditions. This dynamic approach allows the device to improve location accuracy when needed while reducing operational complexity under normal conditions, effectively resolving the contradiction between precision and complexity
3Reliability
If signal output intensity is increased to improve signal reception, then the signal strength improves, but the energy consumption increases
Solution Approach 1:
The patent applies parameter changes by transmitting signals at multiple different output intensities rather than a single high intensity. By varying the intensity parameter and analyzing the corresponding signal strength indicators, the system can achieve reliable signal reception at lower energy consumption levels. The ability to switch between different intensity parameters allows optimal balance between reception quality and energy usage
Solution Approach 2:
The patent applies partial action by transmitting multiple signals at different intensities only when location determination is needed, rather than continuously transmitting at high intensity. This partial transmission strategy achieves sufficient signal reception quality for accurate location while significantly reducing overall energy consumption compared to continuous high-intensity transmission
Data Source
AI summary
An electronic device includes: a communication circuit; a memory storing one or more instructions; and at least one processor electrically connected with the communication circuit, and configured to execute the one or more instructions to: control the communication circuit to transmit a first short-range wireless communication signal having a first output intensity; and control the communication circuit to transmit a second short-range wireless communication signal having a second output intensity that is different from the first output intensity.