Visible Light Transceiver Layout for Mobile Communication
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Solution Overview
Problem
Current communication methods using multiple antennas face limitations in performance and support for new service forms, particularly in visible light communication.
Innovation Solution
A communication device employing a plurality of first light emitters and receivers arranged oppositely on its surfaces, transmitting and receiving visible light signals to enhance performance and support for new services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional multi-antenna communication methods are used, then data reception quality and communication rate can be enhanced, but performance improvement and support for new service forms are limited
Solution Approach 1:
The patent replaces conventional radio frequency antenna systems with visible light communication systems using LEDs and photodetectors. This substitution enables new service forms such as indoor positioning, navigation, and emergency assistance while maintaining high communication rates through optical carrier waves.
Solution Approach 2:
The patent changes the fundamental communication parameter from radio frequency to visible light frequency. By using LEDs as transmitters and photodetectors as receivers, the system operates in the optical spectrum, enabling both high-speed communication and additional services like visual signaling and precise location tracking.
2Adaptability or versatility
If a quasi-omni pattern antenna is used for multicast/broadcast communication, then coverage in various directions is achieved, but directional communication performance is compromised
Solution Approach 1:
The patent employs multiple independent LED transmitters that can dynamically adjust their transmission patterns. By controlling individual LEDs or LED groups, the system can switch between omnidirectional broadcast mode and directional unicast mode, optimizing performance for different communication scenarios.
Solution Approach 2:
The patent divides the communication system into multiple spatially separated LED transmitters and photodetector receivers. This segmentation allows simultaneous operation of multiple communication channels with different patterns - some LEDs providing omnidirectional coverage while others provide directional beams, thereby resolving the contradiction between broadcast and unicast performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration improves communication performance and enables support for new service forms by facilitating effective visible light communication.
Implementation Method 1
A plurality of first light emitters, each of which is disposed along a first surface of the communication device and transmits a visible light signal
Implementation Method 2
a plurality of first light receivers, each of which is disposed along the first surface and receives a visible fight signal
Data Source
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AI summary
The present disclosure facilitates an improvement in the performance of a communication device facilitates support for new forms of services. A mobile terminal (10D) is a communication device that communicates using visible light, and includes: a plurality of light emitters (13a), each of which is disposed along the front surface of the mobile terminal (10D) and transmits a visible light signal; and a plurality of light receivers (14a), each of which is disposed along the front surface and receives a visible light signal. The plurality of light emitters (13a) are disposed on the left side of all of the plurality of light receivers (14a), and the plurality of first light receivers (14a) are disposed on the right side of all of the plurality of light emitters (13a).