DRX Timing Adjustment for Wireless Communication Reliability
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Solution Overview
Problem
In wireless communication systems, especially in high mobility scenarios, frequent DRX reconfigurations lead to interruptions in ongoing uplink or downlink traffic, degrading the quality of voice and video communications due to naive timing adjustments during active talkspurts, resulting in power inefficiency and audio quality issues.
Innovation Solution
The method involves selectively adjusting encoding and decoding timings based on DRX configurations, waiting for periods of absent uplink or downlink traffic to minimize disruptions, and using timers to optimize timing adjustments, ensuring adjustments occur during silence periods or when traffic is absent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If timing adjustment is performed during active talkspurt, then encoding/decoding timing is synchronized, but audio quality degrades and communication is interrupted
Solution Approach 1:
The system performs timing adjustment during silence periods before actual communication resumes, rather than during active talkspurt. This preliminary action during idle periods avoids interrupting ongoing communication and maintains audio quality while still achieving synchronization when needed.
Solution Approach 2:
The patent converts the harmful effect of timing misalignment into a benefit by identifying and utilizing silence periods for adjustment. What would normally be wasted idle time is transformed into an opportunity to perform necessary timing synchronization without affecting active communication.
2Adaptability or versatility
If DRX reconfiguration is performed frequently in high mobility scenarios, then network adaptability is improved, but power consumption increases and communication quality degrades
Solution Approach 1:
Instead of performing full timing adjustments on every DRX reconfiguration, the system performs adjustments selectively only when timing misalignment exceeds a threshold. This partial action approach maintains network adaptability while avoiding unnecessary power consumption from excessive adjustments.
Solution Approach 2:
The system changes the parameter of timing adjustment frequency by introducing a threshold condition. Adjustments are performed based on actual need (when misalignment exceeds threshold) rather than on a fixed schedule, optimizing the balance between adaptability and power consumption.
3Reliability
If timing adjustment is performed immediately upon DRX reconfiguration, then synchronization is maintained, but uplink or downlink traffic is interrupted
Solution Approach 1:
The system performs timing adjustment during silence periods before resuming communication, rather than interrupting active traffic. This preliminary action during idle periods achieves synchronization without impacting ongoing uplink or downlink data transmission.
Solution Approach 2:
The system dynamically determines when to perform timing adjustments based on real-time detection of silence periods and timing misalignment thresholds, rather than following a fixed adjustment schedule. This dynamic approach maintains synchronization while preserving communication continuity.
Data Source
AI summary
This disclosure provides systems, methods, and apparatuses for adjusting an encoding timing or a decoding timing in a manner that minimizes disruption of ongoing uplink or downlink traffic. Some aspects more specifically relate to decoupling adjustment of the encoding timing and adjustment the decoding timing to enable independent adjustment of the encoding timing or the decoding timing. In some aspects, a user equipment (UE) may perform adjustment of the encoding timing, relative to an active time indicated by a discontinuous reception (DRX) configuration, at a time at which uplink traffic is absent. Additionally, or alternatively, the UE may perform adjustment of the decoding timing, relative to an active time indicated by a DRX configuration, at a time at which downlink traffic is absent. Accordingly, upon receiving a DRX configuration, the UE may wait until a period in which uplink traffic or downlink traffic is absent to perform a timing adjustment.