Sounding Reference Signal Power Control in Full-Duplex Communication
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently controlling the transmission power of sounding reference signals during full-duplex communication, which is essential for meeting the requirements of next-generation radio access networks.
Innovation Solution
A method and device for transmitting and receiving sounding reference signals in full-duplex communication, where the user equipment (UE) receives power control parameter sets from a base station to determine the transmission power of the sounding reference signal, and this power is separately adjusted for subband full duplex (SBFD) symbols and non-SBFD symbols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single power control parameter set is used for sounding reference signal transmission, then the device complexity is reduced, but the communication efficiency deteriorates in full-duplex scenarios
Solution Approach 1:
The power control parameter set is segmented into multiple distinct sets: first power control parameter sets for non-SBFD uplink symbols and second power control parameter sets for SBFD uplink symbols. This segmentation allows the system to optimize power control for different full-duplex scenarios, improving communication efficiency by applying appropriate power levels for each symbol type while maintaining manageable complexity through structured parameter organization.
2Reliability
If transmission power of sounding reference signal is not adjusted for SBFD symbols, then the ease of operation is improved, but the reliability deteriorates in full-duplex communication
Solution Approach 1:
The power control mechanism is made dynamic by enabling the UE to select between different power control parameter sets based on the symbol type (SBFD or non-SBFD). This dynamic adaptation ensures reliable full-duplex communication by adjusting power levels according to the specific transmission scenario, while the automated selection process based on symbol identification maintains ease of operation without requiring manual intervention.
3Adaptability or versatility
If separate power control parameter sets are used for SBFD and non-SBFD symbols, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
Different power control parameter sets are applied to different symbol types: first power control parameter sets for non-SBFD uplink symbols and second power control parameter sets for SBFD uplink symbols. This local quality approach ensures that each symbol type receives optimized power control parameters suited to its specific characteristics, improving adaptability while the clear distinction between parameter sets prevents excessive complexity through organized management.
Data Source
AI summary
Provided is a method, performed by a user equipment (UE), of transmitting a sounding reference signal (SRS) in full-duplex communication. The method may include receiving at least one power control parameter set used to determine transmission power of the sounding reference signal from a base station, determining the transmission power of the sounding reference signal based on the at least one power control parameter set, and transmitting the sounding reference signal according to the determined transmission power, wherein the transmission power of the sounding reference signal is separately determined for a case where a symbol where the sounding reference signal is transmitted is a subband full duplex (SBFD) symbol and a case where the symbol is a non-SBFD symbol.