Coding Rate Adjustment Using Signal Strength Change Detection
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Solution Overview
Problem
Existing communication systems fail to effectively adjust coding rates for terminal devices with high mobility, leading to increased probability of communication interruption in weak coverage areas or areas with high network load due to rapid signal changes.
Innovation Solution
A method for adjusting coding rates based on signal strength change rates, involving terminal devices, network devices, and access network devices, to ensure timely adaptation to changing network conditions and reduce communication interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AMR coding rate adjustment is performed based on uplink quality, then speech quality is maintained, but the terminal device may have passed through the weak coverage area by the time the adjustment message is delivered, increasing communication interruption probability
Solution Approach 1:
The terminal device detects signal strength change rates and sends detection reports to the network before actual signal degradation occurs. This preliminary detection enables the network to proactively adjust coding rates or trigger handovers before the terminal enters weak coverage areas, eliminating the delay inherent in reactive AMR adjustments.
Solution Approach 2:
The terminal device continuously monitors and reports signal strength change rates to the network. This feedback mechanism provides real-time information about signal degradation trends, enabling the network to make timely coding rate adjustments and handover decisions, thus maintaining communication continuity despite rapid signal changes.
2Speed
If the terminal device moves at high speed through weak coverage areas, then mobility is maintained, but signal attenuation occurs too rapidly for traditional AMR adjustment to be effective
Solution Approach 1:
The terminal device performs preliminary detection of signal strength change rates and reports them to the network before significant signal degradation occurs. This allows the network to pre-adjust coding rates or initiate handovers, making the system responsive enough to handle high-speed mobility through weak coverage areas without communication interruptions.
Data Source
AI summary
A coding rate adjustment method, where a terminal device may determine a signal strength change rate of a wireless network, and send the signal strength change rate to a first access network device. The terminal device receives a first coding rate from a media processing device, where the first coding rate is determined based on the signal strength change rate. Then, the terminal device codes audio and video data based on the first coding rate, which can better reflect a current wireless network environment. The terminal device codes the audio and video data based on the first coding rate.