Unified TCI State Mapping for Multi-TRP Control Reception
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Solution Overview
Problem
Existing wireless communication systems face challenges in ensuring accurate signal transmission and reception while reducing power consumption in user equipment devices, particularly in multi-transmission-reception-point operations, leading to increased strain on battery life.
Innovation Solution
Implementing a unified transmission control state framework that allows user equipment devices to communicate with multiple transmission and reception points, enabling efficient selection and monitoring of transmission control indication states for downlink communication, thereby optimizing power usage and signal quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-transmission-reception-point operation is implemented to improve signal accuracy, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple TCI state indications into a unified framework where a single DCI message can indicate multiple TCI states for different TRPs. This consolidation reduces the number of separate signaling messages and simplifies the overall communication process while maintaining multi-TRP operation capabilities for improved signal accuracy.
Solution Approach 2:
The patent creates a universal TCI state indication mechanism that can handle multiple TRPs through a single DCI structure. The unified TCI framework provides multi-functionality by accommodating different TRP configurations and transmission schemes within a single standardized interface, reducing the need for multiple specialized protocols.
2Reliability
If multiple TCI states are monitored for multi-TRP communication, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent enables the UE to monitor only the necessary subset of TCI states indicated by the network through DCI messaging, rather than continuously monitoring all possible TCI states. This partial monitoring approach reduces power consumption while maintaining sufficient communication reliability by focusing resources on currently active TRPs.
Solution Approach 2:
The patent implements dynamic TCI state activation where the network can activate or deactivate specific TCI states through DCI indications based on current communication needs. This dynamic approach allows the UE to adjust its monitoring activity in real-time, reducing power consumption when fewer TRPs are active while maintaining reliability when multiple TRPs are needed.
Data Source
AI summary
This disclosure relates to techniques for performing multi-transmission and reception point operation in a wireless communication system. A transmission control indication state may be indicated for future monitoring of a control channel, e.g., using dynamic signaling. The indicated state may be used to provide and receive control information for performing multi-transmission and reception point operation.