Dynamic Reference Signal Reception Scheduling for Cellular Power Optimization
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Solution Overview
Problem
Conventional reference signal (RS) reception scheduling in cellular technologies is inflexible, leading to unnecessary power consumption during good channel conditions and insufficient performance during poor conditions.
Innovation Solution
A dynamic adjustment method for RS reception that involves detecting channel conditions to determine and adjust RS reception scheduling, reducing frequency during good conditions and increasing it during poor conditions, and associating scheduling with sleep or active states based on channel quality, stability, scenario, and performance requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed RS reception scheduling is used, then the UE can maintain consistent channel monitoring, but power consumption increases during good channel conditions
Solution Approach 1:
The patent implements dynamic RS reception scheduling where the UE adjusts its RS reception frequency based on detected channel conditions. When channel conditions are good, the UE reduces RS reception frequency to save power; when conditions deteriorate, the UE increases reception frequency to maintain reliability. This transforms the fixed scheduling into a dynamic adaptive system that responds to real-time channel variations.
Solution Approach 2:
The patent changes the reception frequency parameter of RS based on channel condition detection. The UE monitors channel quality indicators and adjusts the RS reception scheduling parameter accordingly, allowing the system to optimize between power consumption and channel monitoring consistency by varying the reception frequency according to actual channel state.
2Device complexity
If fixed RS reception scheduling is used, then the UE can maintain simple scheduling structure, but performance becomes insufficient during poor channel conditions
Solution Approach 1:
The patent introduces dynamic adjustment capability that allows the RS reception scheduling to adapt to poor channel conditions. When the UE detects deteriorating channel quality, it automatically increases the RS reception frequency to ensure sufficient performance, transforming a static simple structure into a dynamic system that maintains reliability under varying conditions.
Solution Approach 2:
The patent implements a feedback mechanism where the UE continuously detects channel conditions and uses this information to adjust RS reception scheduling. The detection result feeds back into the scheduling decision, creating a closed-loop system that ensures performance requirements are met during poor channel conditions while maintaining structural simplicity through rule-based adjustment.
3Reliability
If RS reception frequency is increased, then channel monitoring performance improves, but power consumption increases
Solution Approach 1:
The patent dynamically changes the RS reception frequency parameter based on detected channel conditions. Instead of maintaining a constantly high reception frequency, the system adjusts this parameter upward only when channel conditions deteriorate, and reduces it when conditions are good, thereby achieving performance improvement only when necessary and minimizing overall power consumption.
Solution Approach 2:
The patent implements periodic RS reception with variable period length. The reception occurs at regular intervals, but the period length is dynamically adjusted based on channel conditions - longer periods (lower frequency) when conditions are good, and shorter periods (higher frequency) when conditions are poor, optimizing the balance between performance and power consumption.
Data Source
AI summary
A dynamic adjustment method for RS reception is provided. The dynamic adjustment method for RS reception includes the following steps. A processor of an apparatus may detect at least one channel condition to generate a detection result. Then, the processor may determine an RS reception scheduling based on the detection result. Then, the processor may perform an RS reception based on the RS reception scheduling to receive RSs from a network node.