5G Antenna Object Detection via Reflection Signals
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Solution Overview
Problem
In 5G mobile communication, the quality of wireless signals is deteriorated and electromagnetic waves are damaged due to blockage from objects, particularly when a person grips an electronic device, leading to restricted transmission and increased damage.
Innovation Solution
An electronic device equipped with a second wireless communication circuit and a communication processor that allocates a detection symbol to detect external objects by transmitting a signal and receiving a reflection signal, allowing for control of transmission based on the detected object, using a second radio access technology (RAT) and antenna arrays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-frequency signals are used to improve data throughput, then data throughput is improved, but signal quality deteriorates and electromagnetic waves are damaged due to blockage
Solution Approach 1:
The system performs object detection in advance by allocating detection symbols before data transmission. The communication processor detects objects in the environment using detection symbols, and based on the detection results, determines whether to transmit data or switch to a different antenna. This preliminary detection prevents signal blockage before it occurs, resolving the contradiction between maintaining high data throughput and ensuring signal quality.
2Productivity
If transmission is performed without object detection, then transmission efficiency is maintained, but electromagnetic waves are damaged and transmission is restricted when objects cause blockage
Solution Approach 1:
The system uses the same antenna array that transmits data to also detect objects by analyzing reflection signals from detection symbols. The objects that would normally cause harmful blockage are detected in advance through their reflection of detection signals. This converts the potential harmful interaction between electromagnetic waves and objects into a useful detection mechanism, allowing the system to avoid transmitting when blockage would occur, thus preventing electromagnetic wave damage while maintaining transmission efficiency.
3Measurement precision
If detection symbols are allocated from uplink or flexible symbols, then object detection capability is improved, but available symbols for data transmission are reduced
Solution Approach 1:
The system allocates only certain uplink or flexible symbols as detection symbols rather than all symbols, performing partial detection action. The communication processor selectively designates specific symbols within the slot structure for detection purposes while leaving other symbols available for data transmission. This partial allocation provides sufficient object detection capability to identify blockage risks without excessively reducing the number of symbols available for maintaining data transmission capacity.
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 solution reduces signal deterioration and electromagnetic wave damage by effectively detecting and adapting to external objects, improving communication quality and transmission efficiency in 5G networks.
Implementation Method 1
detecting an object by transmitting a signal in the detection symbol and receiving a reflection signal of the transmitted signal
Data Source
AI summary
An electronic device including a second wireless communication circuit providing second radio access technology (RAT) and a communication processor controlling the second wireless communication circuit are provided. The communication processor may allocate a detection symbol for detecting an external object, may detect the external object from the allocated symbol, and may control the second wireless communication circuit based on the detected external object.