Antenna Adjusting Method for Wireless Terminal
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Solution Overview
Problem
Current Wi-Fi systems switch from MIMO to SISO mode only after detecting packet errors and packet loss, leading to data loss and reduced user experience, especially in environments sensitive to packet loss rates, such as voice over Wi-Fi applications.
Innovation Solution
An antenna adjusting method and device that continuously monitor radiation efficiencies of antennae and switch between SISO and MIMO modes based on preset thresholds, transmitting broadcast messages to adjust the mode proactively before data transmission, ensuring optimal transmission efficiency by maintaining the appropriate mode according to the antenna environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MIMO mode is used in deteriorated antenna environment, then communication rate is improved, but packet error and packet loss increase
Solution Approach 1:
The patent applies preliminary action by continuously monitoring antenna environment (radiation efficiency) before data transmission occurs. The system proactively detects deterioration and switches from MIMO to SISO mode in advance, preventing packet errors and loss before they happen, rather than reacting after errors are detected.
Solution Approach 2:
The patent implements feedback by continuously monitoring radiation efficiency of antennas and using this information to dynamically adjust the transmission mode. The system creates a closed-loop control where antenna environment feedback directly influences mode selection, enabling adaptive optimization of both communication rate and reliability.
2Reliability
If SISO mode is used in good antenna environment, then packet loss is reduced, but communication rate decreases
Solution Approach 1:
The patent applies dynamics by making the transmission mode flexible and adaptive rather than fixed. The system dynamically switches between MIMO and SISO modes based on real-time antenna environment conditions, optimizing the balance between communication rate and packet loss rate according to current conditions.
Solution Approach 2:
The patent implements parameter changes by adjusting the transmission mode parameter based on radiation efficiency measurements. When radiation efficiency exceeds a threshold, MIMO mode is selected for higher rate; when below threshold, SISO mode is selected for lower packet loss, thereby adapting system parameters to environmental conditions.
3Reliability
If antenna environment monitoring is performed after packet error detection, then mode switching is achieved, but data transmission time is lost
Solution Approach 1:
The patent applies preliminary action by performing antenna environment monitoring continuously in the background before data transmission is needed. This proactive approach ensures the optimal mode is already determined when transmission begins, eliminating delays and data loss associated with post-error detection switching.
Solution Approach 2:
The patent implements continuity of useful action by continuously monitoring antenna environment conditions without interrupting data transmission. The monitoring operates concurrently with transmission, ensuring uninterrupted communication while maintaining optimal mode selection based on real-time conditions.
Data Source
AI summary
An antenna adjusting method includes: transmitting a first broadcast message in a case that a plurality of antennae are in a SISO mode, and acquiring radiation efficiencies of the plurality of antennae; and maintaining the SISO mode in a case that the radiation efficiency of at least one of the plurality of antennae is less than a preset threshold.