TCI State Segmentation for Full Duplex Self-Interference Management
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing transmission configurations for full duplex mode, particularly in reducing self-interference and improving spectral efficiency and network throughput.
Innovation Solution
The method involves a user equipment (UE) and base station exchanging control information indicating multiple transmission configuration indicator (TCI) states, allowing the UE to operate in either half duplex or full duplex mode, and transmitting/receiving downlink transmissions accordingly, with specific TCI states associated with each mode to optimize resource utilization and minimize self-interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE operates in full duplex mode to improve spectral efficiency and network throughput, then productivity is improved, but self-interference increases causing deterioration in reliability
Solution Approach 1:
The patent segments the TCI states into distinct groups: first TCI states configured for half-duplex mode and second TCI states configured for full-duplex mode. This segmentation allows the UE to select appropriate transmission configurations based on the operating mode, thereby managing self-interference differently for each mode while maintaining optimal spectral efficiency.
Solution Approach 2:
The patent implements dynamic switching between half-duplex and full-duplex modes based on network conditions and self-interference levels. The UE can dynamically select between first TCI states (for half-duplex) and second TCI states (for full-duplex), allowing adaptive optimization of spectral efficiency while controlling self-interference through mode-specific configuration.
2Adaptability or versatility
If multiple TCI states are configured to support both half duplex and full duplex modes, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent divides the TCI state configuration into separate first TCI states for half-duplex mode and second TCI states for full-duplex mode. This segmentation simplifies the management complexity by providing distinct configuration sets for each mode, making it easier to track and manage appropriate TCI states without overwhelming device complexity.
Solution Approach 2:
The patent creates a universal TCI state configuration framework that serves both half-duplex and full-duplex modes through a single configuration mechanism. The base station can configure multiple TCI states that are universally applicable across different duplex modes, reducing the need for separate management systems while maintaining adaptability.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, control information that indicates at least two transmission configuration indicator (TCI) states. A first TCI state of the at least two TCI states is associated with a half duplex mode of the UE, and a second TCI state of the at least two TCI states is associated with a full duplex mode of the UE. The UE may further receive, from the base station, a downlink transmission according to at least one of the first TCI state or the second TCI state. Numerous other aspects are provided.