Uplink Power Control via Beta Offset Segmentation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting uplink control information, particularly in scenarios where radio resource usage changes, leading to interference and subframe-dependent power control issues.
Innovation Solution
The method involves configuring first and second beta offsets for determining uplink power on the Physical Uplink Shared Channel (PUSCH) for HARQ-ACK, RI, and CQI, allowing for independent MCS offset configurations per subframe set to manage interference effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single beta offset is used for all uplink control information, then the configuration is simple, but the transmission reliability deteriorates when radio resource usage changes
Solution Approach 1:
The patent segments the single beta offset parameter into multiple beta offsets (first beta offset and second beta offset) corresponding to different subframe sets. This allows independent power control configuration for each subframe set, improving transmission reliability under changing radio resource usage while maintaining manageable configuration complexity through systematic parameter division.
Solution Approach 2:
The patent introduces dynamic adaptability by configuring different beta offsets for different subframe sets based on uplink-downlink configurations. The system can dynamically adjust power control parameters according to interference conditions and resource usage patterns, enhancing transmission reliability without requiring complete reconfiguration of the power control mechanism.
2Reliability
If power control is adapted to subframe-specific interference levels, then transmission reliability improves, but the system complexity increases
Solution Approach 1:
The patent applies local quality by configuring specific beta offsets for specific subframe sets rather than using a uniform configuration. Each subframe set can have optimized power control parameters tailored to its interference characteristics and resource usage pattern, improving transmission reliability locally without requiring complex global optimization.
Solution Approach 2:
The patent changes the power control parameter (beta offset) based on subframe set characteristics and interference levels. By adjusting the beta offset parameter differently for different subframe sets, the system adapts to varying interference conditions, improving transmission reliability while managing complexity through parameter variation rather than structural complexity.
3Object-affected harmful factors
If independent MCS offset configurations are used per subframe set, then interference management improves, but the configuration complexity increases
Solution Approach 1:
The patent segments the MCS offset configuration into separate configurations for different subframe sets. This allows independent optimization of modulation and coding parameters for each subframe set based on its interference characteristics, improving interference management while maintaining configuration manageability through systematic segmentation of parameters.
Data Source
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AI summary
The present invention relates to a method of transmitting uplink control information (UCI), which is transmitted by a user equipment in a wireless communication system. In particular, the method includes the steps of receiving first offset information associated with uplink control information (UCI) transmission in uplink subframes according to uplink-downlink configuration of a serving cell and receiving a power control parameter configuring a first uplink power control subframe set and a second uplink power control subframe set for the uplink subframes. In this case, the first uplink power control subframe set and the second uplink power control subframe set are configured to be independently applied by an offset for transmitting the uplink control information.