VoLTE Power Reduction via Adaptive Voice Quality Control
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Solution Overview
Problem
The implementation of Voice over LTE (VoLTE) is hindered by power consumption issues, requiring methods to reduce power consumption while maintaining voice quality in digital electronic devices.
Innovation Solution
A communications apparatus comprising a radio frequency (RF) signal processing device, a baseband signal processing device, and a processor that estimates user-perceived voice quality and adjusts parameters such as codec mode, transmission power, and packet drop rate to reduce power consumption while ensuring voice quality remains above a predetermined threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voice packets are transmitted with high quality parameters in VoLTE communications, then voice quality is maintained, but power consumption increases
Solution Approach 1:
The system dynamically adjusts voice packet transmission parameters (such as codec mode, packet size, and transmission frequency) based on real-time network conditions and user mobility state. When the user is stationary or in stable conditions, higher quality parameters are used. When mobile or in poor network conditions, parameters are reduced to save power, thus resolving the contradiction between maintaining voice quality and reducing power consumption.
Solution Approach 2:
The invention changes transmission parameters adaptively based on measured voice quality metrics and power consumption levels. By monitoring parameters such as MOS (Mean Opinion Score) and adjusting codec modes, packet intervals, and transmission power, the system optimizes the balance between voice quality and energy usage, directly addressing the technical contradiction.
2Reliability
If voice packets are transmitted at high frequency to maintain quality, then voice quality is improved, but power consumption increases
Solution Approach 1:
The system implements periodic transmission of voice packets with adaptive intervals. Instead of continuous high-frequency transmission, packets are sent at optimized intervals based on voice activity detection and network conditions. During silent periods or when quality thresholds are met, transmission frequency is reduced, thereby reducing power consumption while maintaining perceived voice quality.
3Reliability
If advanced signal processing is used to maintain voice quality, then voice quality is improved, but device complexity increases
Solution Approach 1:
The signal processing function is segmented and distributed between the user equipment and the network infrastructure. Advanced processing such as echo cancellation, noise suppression, and voice activity detection are performed collaboratively, reducing the processing burden and complexity on the mobile device while maintaining high voice quality.
Data Source
AI summary
A method for reducing power consumption when a communications apparatus establishes voice communications with another communications apparatus includes estimating a voice quality perceived by a user of the another communications apparatus; determining whether the estimated voice quality is higher than a predetermined threshold; and adjusting at least one parameter utilized for processing a plurality of voice packets to be transmitted to the another communications apparatus according to the estimated voice quality to reduce the power consumption when the estimated voice quality is higher than the predetermined threshold.