Terminal Apparatus Wi-Fi Interference and BLE Distance Selection
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Solution Overview
Problem
Existing terminal apparatuses face challenges in selecting a suitable electronic apparatus for connection due to radio wave interference from multiple access points, which can lead to connection issues and decreased communication speed, as they do not consider Wi-Fi information and radio wave interference when selecting or displaying available devices.
Innovation Solution
A terminal apparatus equipped with both Wi-Fi and Bluetooth Low Energy (BLE) communication units, which uses BLE to assess radio wave interference and distance information to display a list of available electronic apparatuses, allowing users to select devices with lower interference and optimal connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal apparatus selects an electronic apparatus based only on distance (using BLE) without considering Wi-Fi radio wave interference, then the selection process is simple and fast, but the connection stability and communication quality deteriorate due to radio wave interference from multiple access points
Solution Approach 1:
The patent merges BLE and Wi-Fi communication systems into a unified selection process. The terminal apparatus uses BLE to obtain distance information and Wi-Fi to assess radio wave interference levels, combining both data sources to comprehensively evaluate electronic apparatuses. This integration allows the system to consider both proximity and communication quality without requiring separate selection processes.
Solution Approach 2:
The patent changes the evaluation parameters from solely distance-based (BLE RSSI) to a composite metric that includes both distance and radio wave interference levels. By introducing Wi-Fi signal quality as an additional parameter, the system transforms the selection criterion from a single-dimensional to a multi-dimensional evaluation, improving connection reliability while maintaining manageable complexity through automated scoring.
2Productivity
If the terminal apparatus connects to an access point in a high-interference environment, then connection establishment is quick, but communication speed decreases due to radio wave interference
Solution Approach 1:
The patent implements feedback by having the terminal apparatus actively measure Wi-Fi radio wave interference levels at each candidate electronic apparatus location. This real-time feedback on interference conditions allows the system to adjust its selection dynamically, avoiding access points with high interference that would degrade communication speed, while still prioritizing nearby devices with acceptable interference levels.
Solution Approach 2:
The patent performs preliminary assessment of radio wave interference levels using Wi-Fi scanning before final connection establishment. By evaluating the interference environment in advance and scoring each candidate apparatus accordingly, the system preemptively avoids high-interference locations, ensuring better communication speed from the outset rather than dealing with interference issues after connection.
3Measurement precision
If the terminal apparatus uses only Wi-Fi for device discovery and selection, then communication quality can be assessed, but the ability to determine precise distance and locate nearby devices deteriorates
Solution Approach 1:
The patent makes the electronic apparatus universal by equipping it with both BLE and Wi-Fi communication capabilities. BLE serves the function of precise distance measurement and initial device discovery, while Wi-Fi provides radio wave interference assessment. This multi-functionality allows a single apparatus to fulfill multiple selection criteria simultaneously, combining the strengths of both communication technologies without requiring separate systems.
Solution Approach 2:
The patent uses BLE as an intermediary to bridge the gap between physical proximity assessment and communication quality evaluation. BLE provides the distance information that helps prioritize nearby devices, while Wi-Fi acts as the intermediary for assessing radio wave interference. Together, they form a coordinated system where BLE's precise positioning complements Wi-Fi's communication quality metrics, neither losing information to the other.
Data Source
AI summary
Provided is a terminal apparatus including a first wireless communication interface that performs wireless communication with an electronic apparatus using a first wireless communication scheme, a second wireless communication unit that performs wireless communication with the electronic apparatus using a second wireless communication scheme, and a processor. The processor performs processing that displays on a display a display image that is based on information on the degree of radio wave interference in communication with the electronic apparatus in compliance with the first wireless communication scheme and information on a distance to the electronic apparatus, which is obtained based on a beacon signal that is received using the second wireless communication scheme.