TCI State Configuration for Multi-TRP Beam Management
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Solution Overview
Problem
In New Radio (NR) technology, particularly in frequency range 2 (FR2), the existing beam configuration methods for Multi-TRP scenarios fail to effectively associate Transmission Configuration Indication (TCI) states with reference signal resources of both serving and neighboring cells, leading to suboptimal beam management and service provision.
Innovation Solution
The proposed method determines and configures TCI states of a Control Resource Set (CORESET) to associate reference signal resources with either the serving cell, the neighboring cell, or both, enabling flexible beam configuration for Multi-TRP scenarios, allowing for Quasi co-location relationships between PDCCH and reference signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing beam configuration methods are used in Multi-TRP scenarios, then beam management can be performed, but TCI states cannot be effectively associated with reference signal resources of both serving and neighboring cells
Solution Approach 1:
The patent segments the TCI state configuration by introducing separate indication mechanisms for serving cell TCI states and neighboring cell TCI states. The network device configures different TCI state sets for different cells, allowing independent management and association with respective reference signal resources, thereby resolving the limitation of existing methods that cannot handle multi-cell scenarios effectively
Solution Approach 2:
The patent adds a new dimension to beam configuration by introducing cell identity as an additional parameter dimension. Instead of a single TCI state configuration, the system now operates in a multi-dimensional space where TCI states are associated with specific cells (serving or neighboring), enabling effective beam management across multiple Transmission Reception Points
2Reliability
If TCI states are configured for multiple cells, then beam management is improved, but configuration complexity increases
Solution Approach 1:
The patent introduces an intermediary mechanism through dedicated indication signaling that mediates between the network device and terminal for TCI state configuration. The indication signaling carries both serving cell TCI states and neighboring cell TCI states, acting as an intermediary that simplifies the configuration process by consolidating multiple configuration operations into a unified signaling mechanism
Solution Approach 2:
The indication signaling mechanism is designed with multi-functionality, serving both to configure serving cell TCI states and neighboring cell TCI states through a single unified process. This universal configuration approach reduces the need for separate configuration procedures, thereby managing complexity while maintaining improved beam management across multiple cells
Data Source
AI summary
A beam configuration method is performed by a terminal, and includes: determining one or more transmission configuration indication (TCI) states of a control resource set (CORESET); wherein one or more reference signal resources indicated by the one or more TCI states are associated with at least one of: a serving cell of the terminal; or a neighboring cell of the terminal.