Dynamic Split-Uplink Mode Restriction for VoIP Voice Muting
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Solution Overview
Problem
Serving dual-connected UEs in the split-uplink mode can result in added load on the air interface, contributing to voice muting during VoIP communications, particularly when uplink communication is split between two access nodes.
Innovation Solution
The system detects a predefined threshold high level of uplink voice muting and restricts the application of the split-uplink mode to control the uplink load on the first air interface, potentially disabling new activations of split-uplink mode for certain UEs or modifying trigger conditions to reduce uplink data flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If split-uplink mode is applied for dual-connectivity service, then uplink data transmission capacity is improved, but uplink load on the first air interface increases causing voice muting
Solution Approach 1:
The system dynamically adjusts the uplink transmission mode between split-uplink mode and non-split-uplink mode based on real-time voice muting detection. When voice muting is detected on the first air interface, the system switches from split-uplink mode to non-split-uplink mode, making the uplink transmission mode adaptable to current network conditions rather than fixed.
Solution Approach 2:
The system implements a feedback mechanism by detecting voice muting on the first air interface and using this detection to control whether split-uplink mode is applied. The voice muting detection serves as feedback that triggers mode switching, creating a closed-loop control system that responds to actual network conditions.
2Speed
If uplink communication is split between two access nodes, then data rate is improved, but voice quality deteriorates due to added load on the first air interface
Solution Approach 1:
The system dynamically switches between split-uplink mode (for high data rate) and non-split-uplink mode (for voice quality) based on real-time detection of voice muting conditions. This dynamic adaptation allows the system to optimize for data rate when voice quality is not compromised, and switch to voice quality optimization when muting is detected.
Solution Approach 2:
Voice muting detection provides feedback about voice quality degradation, which triggers the system to switch from split-uplink mode to non-split-uplink mode. This feedback loop ensures that voice quality is maintained by detecting when it deteriorates and responding by changing the transmission mode.
Data Source
AI summary
A method and system for controlling application of split-uplink mode for dual-connectivity service in a system where a first access node provides service on a first air interface and a second access node provides service on a second air interface, and where (i) in a single-connection-uplink mode for the dual-connectivity service, uplink user-plane communication is carried on just the second air interface and (ii) in the split-uplink mode for the dual-connectivity service, uplink user-plane communication is split between the first air interface and the second air interface. An example method includes detecting at least a predefined threshold high level of uplink voice muting on the first air interface and responsively restricting application of the split-uplink mode for the dual-connectivity service.