TCI-Based Power Control for Full Duplex Uplink Symbols
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing power control parameters for uplink transmissions in both non-full duplex and full duplex symbols, particularly due to increased interference in full duplex symbols.
Innovation Solution
A user equipment (UE) is configured with multiple sets of power control (PC) parameters for each transmission configuration indicator (TCI) state, allowing it to differentiate between non-full duplex and full duplex symbols, thereby optimizing signal quality and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single set of PC parameters is used for all TCI states, then the system complexity is reduced, but the signal quality and interference management in full duplex symbols deteriorate
Solution Approach 1:
The patent segments the PC parameters into multiple sets (first set for non-full duplex symbols, second set for full duplex symbols) associated with each TCI state. This segmentation allows differentiated power control for different symbol types, improving signal quality and interference management while maintaining manageable system complexity through structured organization.
2Reliability
If multiple sets of PC parameters are configured for each TCI state, then the signal quality and interference management improve, but the device complexity increases
Solution Approach 1:
The patent applies local quality by configuring specific PC parameter sets for specific conditions: the first set of PC parameters is used for non-full duplex symbols while the second set is used for full duplex symbols. This localized parameter optimization improves signal quality where needed without unnecessarily increasing complexity across all operations.
Solution Approach 2:
The system dynamically selects which PC parameter set to use based on the symbol type (full duplex or non-full duplex). This dynamic adaptation allows the system to optimize performance for each transmission condition while maintaining a structured configuration framework that manages complexity.
3Ease of operation
If PC parameters are not differentiated for full duplex symbols, then the configuration simplicity is maintained, but the interference management capability deteriorates
Solution Approach 1:
The patent changes the PC parameters specifically for full duplex symbols by providing a second set of PC parameters associated with uplink transmission in full duplex symbols. This parameter differentiation enables effective interference management in full duplex operation while maintaining configuration simplicity through a systematic approach to parameter organization and selection.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control information that indicates a set of transmission configuration indicator (TCI) states, where a first TCI state of the set of TCI states is associated with a first set of power control (PC) parameters and a second set of PC parameters. The UE may receive an indication of a duplex type for one or more symbols including uplink resources, where the one or more symbols are associated with the first TCI state. As such, the UE may transmit an uplink message during the one or more symbols according to the first TCI state. For example, the UE may transmit the uplink message according to the second set of PC parameters based on the duplex type being full duplex and the first TCI state being associated with the second set of PC parameters.