Unified TCI State Selection for Multi-TRP Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing unified transmission control states for multi-transmission-reception-point operations, leading to increased signaling overhead and limited flexibility in communication between user equipment (UE) and multiple transmission-reception points (TRPs).
Innovation Solution
The method involves receiving configuration lists of transmission control indication (TCI) states from a cellular network, determining associations between TCI codepoints and states, and selecting appropriate TCI states for communication, allowing for flexible activation and deactivation of TCI states to optimize communication with multiple TRPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate TCI state configurations are used for multi-TRP operation, then communication flexibility is improved, but signaling overhead increases
Solution Approach 1:
The patent combines multiple separate TCI state configurations into a unified TCI state structure. Instead of maintaining separate TCI state lists for each TRP, the invention creates a single unified configuration that manages TCI states across multiple TRPs, thereby reducing the total signaling overhead while preserving the ability to flexibly configure communications with multiple transmission-reception points.
Solution Approach 2:
The unified TCI state configuration serves multiple functions simultaneously - it manages beam indications for multiple TRPs, supports both single-TRP and multi-TRP operations, and provides a common framework that can be applied across different communication scenarios. This multi-functional approach eliminates the need for separate dedicated configurations for each TRP.
2Loss of information
If unified TCI state configuration is used, then signaling overhead is reduced, but communication flexibility may be limited
Solution Approach 1:
Within the unified TCI state configuration, the patent segments the state management by associating specific TCI states with specific TRPs through codepoint mappings. This segmentation allows the system to maintain a compact unified structure while preserving TRP-specific customization capabilities, ensuring that each TRP can be independently configured when needed.
Solution Approach 2:
The unified TCI state configuration employs dynamic activation and deactivation mechanisms that allow the system to adapt between different operational modes. The network can dynamically activate specific TCI states for specific TRPs based on current communication requirements, enabling the system to transition between energy-saving modes and high-performance multi-TRP modes as needed.
Data Source
AI summary
This disclosure relates to techniques for performing multi-transmission and reception point operation in a wireless communication system. A plurality of transmission control indication states may be indicated for future use, e.g., using one or more separately identified lists. A subset of the indicated states may be activated. One or more states of the subset may be used for performing multi-transmission and reception point operation in a single downlink control information mode.