Foldable Electronic Housing Angle Control for Wireless Links
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Solution Overview
Problem
In foldable or rollable electronic devices, the changing distance between antennas due to the angle or position of the housing affects the performance of short-range wireless communication, leading to reduced transmission and reception rates and increased latency.
Innovation Solution
An electronic device with a hinge structure and foldable housings, equipped with first and second antennas, uses a processor to identify the angle between the housings and control the communication circuit to adjust the operation mode, modulation and coding scheme, and bandwidth of the links to maintain optimal wireless communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the housing is folded to reduce device size, then portability is improved, but the distance between antennas is reduced causing wireless communication performance to deteriorate
Solution Approach 1:
The patent applies dynamics by making the wireless communication operation mode changeable based on the housing angle. The system dynamically switches between different operation modes (first mode for unfolded state, second mode for folded state) to adapt to the changing antenna distance, thereby maintaining communication performance while allowing device folding.
Solution Approach 2:
The patent changes the operation mode parameter of the wireless communication system based on the housing angle. When the housing angle indicates a folded state, the system changes from a first operation mode to a second operation mode, adjusting communication parameters to compensate for reduced antenna distance and maintain performance.
2Productivity
If multiple antennas are disposed in different housings to improve communication performance, then transmission rate is improved, but device complexity increases
Solution Approach 1:
The patent makes the wireless communication system universally adaptable to different housing configurations by implementing multiple operation modes. The same communication system can operate effectively whether antennas are in the same housing or different housings, whether the device is folded or unfolded, eliminating the need for separate communication systems for different configurations.
3Ease of operation
If the housing angle changes to enable folding, then ease of operation is improved, but interference between antenna signals increases
Solution Approach 1:
The patent uses feedback from the housing angle sensor to automatically adjust the wireless communication operation mode. The system continuously monitors the housing angle and adjusts communication parameters accordingly, creating a closed-loop control system that eliminates signal interference caused by folding without requiring manual intervention.
Data Source
AI summary
An electronic device includes: a hinge structure; a foldable housing including a first housing structure and a second housing structure that are configured to be foldable relative to each other around the hinge structure; a first antenna provided in the first housing structure; a second antenna provided in the second housing structure; a communication circuit electrically connected to the first antenna and the second antenna, and configured to transmit and receive data through a first link and a second link established between an external electronic device and the electronic device; and a processor operatively connected to the communication circuit, wherein the processor is configured to: identify whether an angle between the first housing structure and the second housing structure satisfies a specified condition; and control the communication circuit to transmit, through at least one of the first link and the second link, a signal related to a change in an operation of short-range wireless communication, based on whether the angle satisfies the specified condition.