Fixed Bitrate Wireless VoIP Transceiver for Call Delay Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless VoIP devices experience delays due to automatic bitrate control, which degrades call signal quality as the signal quality worsens, particularly due to signal attenuation and interference, leading to frequent bitrate adjustments and changes in modulation schemes.
Innovation Solution
A wireless communications system that establishes a wireless connection at a predetermined call bitrate, not determined through a maximizing process, between the wireless transceiver and the networking device, ensuring consistent signal transmission and eliminating delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If automatic bitrate control is used to adapt to signal quality changes, then the system can maintain connectivity under varying conditions, but delays occur due to frequent bitrate adjustments and modulation scheme changes
Solution Approach 1:
The patent applies dynamics by enabling the wireless transceiver to dynamically switch between different bitrate modes (first bitrate with first modulation scheme, second bitrate with second modulation scheme) based on real-time signal quality conditions. This allows the system to adapt to varying channel conditions while maintaining continuous operation without fixed constraints.
Solution Approach 2:
The patent changes key transmission parameters (bitrate and modulation scheme) based on signal quality measurements. When signal quality exceeds a threshold, the system switches to the first bitrate with first modulation scheme; otherwise, it switches to the second bitrate with second modulation scheme, thereby optimizing transmission performance under different conditions.
2Productivity
If the system starts at the highest bitrate to maximize data transmission, then productivity is improved, but call signal quality degrades when signal conditions worsen due to attenuation and interference
Solution Approach 1:
The system dynamically adjusts bitrate based on signal quality rather than starting at maximum bitrate. It switches between first bitrate (higher rate) and second bitrate (lower rate) depending on whether signal quality exceeds the threshold, thereby balancing data transmission efficiency with call signal quality maintenance.
Solution Approach 2:
The system implements feedback by continuously monitoring signal quality and adjusting bitrate accordingly. The wireless transceiver measures signal quality and switches between bitrate modes based on whether the measured quality exceeds a predetermined threshold, creating a closed-loop control system that maintains optimal performance.
3Reliability
If bitrate is reduced to ensure good transmission under poor signal conditions, then call signal quality is maintained, but data transmission efficiency decreases
Solution Approach 1:
The system dynamically selects between first bitrate and second bitrate based on real-time signal quality conditions. When signal quality exceeds the threshold, it uses the higher first bitrate for efficient transmission; when signal quality deteriorates, it switches to the lower second bitrate to maintain transmission quality, thereby optimally balancing speed and reliability.
Solution Approach 2:
The system changes transmission parameters (bitrate and modulation scheme) based on signal quality measurements. It switches between different bitrate modes to adapt to varying channel conditions, maximizing data transmission rate when conditions are good and maintaining transmission quality when conditions are poor.
Data Source
AI summary
A wireless communication system transmits and receives electronic voice signals between a wireless communication device and a wireless networking device at a call bitrate stored in the wireless communication device. By using the call bitrate when transmitting and receiving call signals, the wireless communication system is able to eliminate delays in the call signals caused if the signal becomes worse.