Electronic Device Channel Selection for Bluetooth to Wi-Fi Handover
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Solution Overview
Problem
The existing Bluetooth technology faces challenges in establishing a stable Wi-Fi connection, particularly due to inefficient channel selection and increased time required when transitioning from a Bluetooth connection to a Wi-Fi connection.
Innovation Solution
An electronic device is equipped with modules for signal transmission through both Bluetooth and Wi-Fi interfaces, featuring a controller that assesses channel quality and performs a handover to a Wi-Fi network, ensuring seamless service by selecting the best channel for communication based on quality comparison.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a host device releases a Bluetooth connection and establishes a Wi-Fi connection using conventional channel selection methods, then the Wi-Fi connection can be established, but the time required becomes significant and channel selection is not effective
Solution Approach 1:
The patent applies preliminary action by measuring Wi-Fi channel quality in advance during the Bluetooth connection phase. The controller measures the quality of each Wi-Fi channel (1-13) while the Bluetooth connection is still active, so that when handover is needed, the best channel is already identified and ready for immediate use, eliminating the need for time-consuming channel selection after connection release.
2Productivity
If conventional Wi-Fi channel selection methods are used during Bluetooth-to-Wi-Fi handover, then connection can be established, but the handover process is inefficient and service continuity is affected
Solution Approach 1:
The patent performs Wi-Fi channel quality measurements in advance during the Bluetooth connection phase. The controller measures each Wi-Fi channel's quality (signal strength, interference level) while Bluetooth is still active, preparing the optimal channel selection before handover is triggered, thus enabling rapid and efficient transition without service interruption.
3Adaptability or versatility
If Bluetooth and Wi-Fi operate in overlapping frequency bands, then both technologies can be used, but channel interference occurs and connection stability deteriorates
Solution Approach 1:
The patent applies local quality by measuring and evaluating the quality of each individual Wi-Fi channel (1-13) separately. The controller identifies which specific channels have good signal strength and low interference, then selects only those appropriate channels for Wi-Fi operation, thereby avoiding channels that would cause or experience interference with Bluetooth operations in the overlapping 2.4 GHz band.
Data Source
AI summary
The present disclosure relates to a sensor network, Machine Type Communication (MTC), Machine-to-Machine (M2M) communication, and technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the above technologies, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An electronic device, a method of an electronic device, and a method of a terminal apparatus are provided. The electronic device includes a first module configured to transmit/receive a signal through a first transmission interface, a second module configured to transmit/receive a signal through a second transmission interface, and a controller configured to set a channel for transmitting/receiving a signal to/from an other electronic device through the second transmission interface, based on a quality of at least one channel transmitting/receiving a signal to/from the other electronic device through the first transmission interface.