PUCCH Power Control in Subband Full Duplex Symbols
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently controlling the transmission power of the uplink control channel during full-duplex communication, which is essential for meeting the diverse requirements of next-generation radio access networks.
Innovation Solution
A method and device for transmitting and receiving a physical uplink control channel (PUCCH) in full-duplex communication, where the user equipment (UE) receives power control parameter sets from a base station, determines the transmission power of the PUCCH based on these parameters, and transmits the PUCCH accordingly. The transmission power is separately determined for subband full duplex (SBFD) symbols and non-SBFD symbols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single power control parameter set is used for PUCCH transmission in both SBFD and non-SBFD symbols, then the device complexity is reduced, but the communication efficiency and reliability deteriorate due to inability to separately optimize power for full-duplex and half-duplex scenarios
Solution Approach 1:
The patent segments the power control parameters into separate sets for SBFD symbols and non-SBFD symbols. The base station configures different power control parameter sets (e.g., P0, P0_NOMINAL, P0_UE_PUCCH) specifically for SBFD symbols, while maintaining separate parameters for non-SBFD symbols. This segmentation allows independent optimization of power control for full-duplex and half-duplex scenarios, improving communication efficiency without requiring a complete redesign of the power control mechanism.
Solution Approach 2:
The patent implements dynamic power control by enabling the UE to selectively apply different power control parameter sets based on the symbol type (SBFD or non-SBFD). The UE dynamically determines which parameter set to use for each PUCCH transmission depending on whether the current symbol is configured as an SBFD symbol. This dynamic adaptation allows the system to respond to changing full-duplex communication conditions while maintaining manageable device complexity through clear selection rules.
2Reliability
If transmission power is separately determined for SBFD and non-SBFD symbols, then the reliability of PUCCH transmission in full-duplex communication is improved, but the device complexity increases due to multiple power control parameter sets
Solution Approach 1:
The patent applies local quality by configuring specific power control parameters for SBFD symbols that are tailored to the unique characteristics of full-duplex communication. The base station provides separate P0 values, P0_NOMINAL values, and other power control parameters specifically for SBFD symbols, allowing localized optimization of power control in the full-duplex scenario without affecting non-SBFD symbol transmissions. This ensures reliable PUCCH transmission in SBFD conditions while maintaining standard power control for other scenarios.
Solution Approach 2:
The patent implements dynamic parameter selection where the UE automatically chooses the appropriate power control parameter set based on the symbol type. The UE monitors the symbol configuration and dynamically applies either the SBFD-specific parameter set or the non-SBFD parameter set. This dynamic approach improves reliability by ensuring the correct parameters are used for each transmission type, while the automated selection process prevents excessive complexity from manual parameter management.
3Productivity
If power control parameters are optimized for full-duplex communication, then the communication efficiency in SBFD symbols is improved, but the ease of operation deteriorates due to separate power determination requirements
Solution Approach 1:
The patent implements self-service by enabling the UE to automatically determine and apply the appropriate power control parameter set without external intervention. The UE autonomously identifies whether the current symbol is an SBFD or non-SBFD symbol based on configuration information from the base station, and then self-selects the corresponding parameter set for PUCCH transmission. This self-service mechanism improves communication efficiency through optimized power control while maintaining ease of operation by eliminating the need for manual parameter configuration or complex external control.
Solution Approach 2:
The patent enables dynamic parameter application where the UE automatically adapts its power control settings based on the current symbol type. The system dynamically switches between SBFD-optimized parameters and standard parameters without requiring manual reconfiguration. This dynamic behavior improves communication efficiency by applying the most appropriate parameters for each transmission scenario while keeping the operation simple through automated decision-making at the UE level.
Data Source
AI summary
Provided is a method, performed by a user equipment (UE), of transmitting a physical uplink control channel (PUCCH) in full-duplex communication. The method may include receiving at least one power control parameter set used to determine transmission power of the PUCCH from a base station, determining the transmission power of the PUCCH based on the at least one power control parameter set, and transmitting the PUCCH according to the determined transmission power, wherein the transmission power of the PUCCH is separately determined for a case where a symbol for transmitting the PUCCH is a subband full duplex (SBFD) symbol and a case where the symbol is a non-SBFD symbol.