PUCCH Power Adjustment for Stable Coverage
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Solution Overview
Problem
The Physical Uplink Control Channel (PUCCH) in wireless communication systems experiences unstable coverage due to varying numbers of symbols occupied in a slot, which affects transmission quality.
Innovation Solution
A method is introduced to adjust the transmit power of the PUCCH by incorporating a component correlated with the number of symbols occupied in a slot, ensuring stable coverage across different symbol configurations, applicable to both User Equipment (UE) and base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of symbols occupied by PUCCH in one slot varies from 4 to 14, then the PUCCH coverage changes significantly, but maintaining stable coverage becomes difficult
Solution Approach 1:
The patent changes the power parameter by introducing a symbol duration component into the power calculation formula. Specifically, it adds a term proportional to the number of symbols T to the PUCCH power calculation, which compensates for coverage variations caused by different symbol counts, thereby maintaining stable coverage while adapting to varying symbol configurations
Solution Approach 2:
The patent makes the PUCCH power dynamic by linking it to the variable number of symbols T. The power adjustment formula dynamically adapts to different symbol configurations (4-14 symbols) by automatically adjusting the power level based on the actual symbol count, enabling the system to maintain stable coverage across different dynamic configurations
2Device complexity
If frequency domain resources are coupled with symbol variations, then resource allocation becomes complex, but decoupling them reduces configuration flexibility
Solution Approach 1:
The patent segments the resource configuration into independent components: frequency domain resources are configured separately from time domain symbol variations. This segmentation allows frequency resources to remain fixed while symbol count varies, simplifying configuration management while maintaining allocation flexibility through independent control of each resource dimension
Data Source
AI summary
The disclosure provides a method and a device in a base station and a User Equipment (UE) for power adjustment. The UE first transmits a first radio signal. The first radio signal occupies T time unit(s) in time domain, and the T is used for determining a first component. A first reference power is in linear correlation with the first component. A transmit power of the first radio signal is a first power, and the first reference power is used for determining the first power. The T is a positive integer. The above method can ensure that the first radio signal keeps a stable coverage in the condition that the first radio signal occupies different numbers of time units.