Antenna Interference Mitigation via Dynamic TDM-FDM Switching
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Solution Overview
Problem
In communication devices with limited hardware design space, such as mobile phones and set-top boxes, insufficient isolation between antennas leads to significant interference between different wireless communication systems, hindering maximum throughput performance.
Innovation Solution
A method and device for communication that determine whether mutual interference between antennas exceeds a preset threshold, and if so, employ a Time-Division Multiplexing (TDM) mode to avoid interference, while allowing Frequency-Division Multiplexing (FDM) when interference is below the threshold to achieve maximum throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sufficient hardware isolation between antennas is ensured, then interference between different wireless communication systems is avoided and maximum throughput performance is achieved, but hardware design space requirements increase
Solution Approach 1:
The patent implements dynamic antenna mode switching between TDM and FDM based on real-time interference detection. The system transitions from static hardware isolation to dynamic operational mode adaptation, allowing the same hardware configuration to achieve both high throughput and interference mitigation by adjusting the multiplexing mode according to actual interference conditions
Solution Approach 2:
The system changes operational parameters (time division vs frequency division multiplexing) to resolve interference issues. By detecting interference levels and switching between TDM and FDM modes, the system adapts parameter configurations to maintain throughput performance without requiring increased hardware isolation space
2Area of stationary object
If hardware isolation between antennas is reduced to save design space, then device compactness is improved, but interference between different wireless communication systems increases
Solution Approach 1:
The patent converts the harmful interference effect into a useful detection signal. By monitoring interference levels between antennas, the system identifies when TDM mode should be activated. The interference that would normally degrade performance is instead used as a trigger mechanism to switch to the appropriate multiplexing mode, thereby eliminating the harmful effect while maintaining compact hardware design
Solution Approach 2:
The system implements a feedback mechanism where interference detection results directly control the antenna multiplexing mode selection. The detected interference level feeds back to the control logic, which then adjusts the operational mode (TDM or FDM) to eliminate or mitigate the interference, creating a closed-loop system that maintains performance in compact hardware configurations
Data Source
AI summary
Provided are a method and device for communication and an electronic device. The method includes: determining whether impact of mutual interference between a first antenna and a second antenna on wireless signal transceiving of the first antenna and the second antenna exceeds a preset interference upper limit; and in response to a determination that the impact of the mutual interference between the first antenna and the second antenna on the wireless signal transceiving of the first antenna and the second antenna exceeds the preset interference upper limit, transceiving the first-mode wireless signal through the first antenna and transceiving the second-mode wireless signal through the second antenna. Transceiving of the first-mode wireless signal through the first antenna and transceiving of the second-mode wireless signal through the second antenna are performed in a time-division multiplexing (TDM) mode.