TCI State Table Configuration for 5G Beam Indication
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Solution Overview
Problem
Current MIMO technologies, such as those in LTE and future 5G systems, face challenges in effectively indicating Transmission Configuration Indication (TCI) states due to increasing complexity in 5G application scenarios, requiring more flexible configuration of TCI state tables at both network and terminal device sides.
Innovation Solution
A method is introduced to activate and configure TCI state tables based on communication resource classification, allowing for flexible configuration by selecting appropriate TCI states, RS sets, and Quasi-Co-Location (QCL) types, and sending this information to terminal devices through network-side devices, using existing communication systems like LTE and 5G.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional TCI indication methods are used in LTE/MIMO systems, then basic beam indication is achieved, but the system cannot satisfy complicated requirements of 5G application scenarios
Solution Approach 1:
The patent segments the TCI state table configuration by communication resource types (control channels, data channels, reference signals). Different TCI state tables are activated for different resource types, allowing customized configuration for each category while maintaining overall system manageability. This segmentation enables the system to handle diverse 5G requirements without creating a single overly complex configuration structure.
Solution Approach 2:
The patent introduces dynamic activation of TCI state tables based on communication resource classification. The network can dynamically select and activate appropriate TCI state tables for different resource types and scenarios, making the system adaptable to varying 5G application requirements rather than using a static, one-size-fits-all configuration approach.
2Ease of operation
If TCI state tables are configured for all communication resources uniformly, then comprehensive coverage is achieved, but flexibility in configuration is reduced
Solution Approach 1:
The patent applies local quality by configuring TCI state tables with specific properties tailored to each communication resource type. Control channels, data channels, and reference signals each have their own activated TCI state tables with appropriate QCL type relationships, ensuring that each resource type receives configuration optimized for its specific requirements rather than a uniform generic configuration.
Solution Approach 2:
The patent maintains universality by establishing a framework where TCI state tables can be activated for multiple communication resource types. The same TCI state table structure and activation mechanism serve control channels, data channels, and reference signals, providing a unified approach that achieves comprehensive coverage while allowing flexible, type-specific configuration within the universal framework.
Data Source
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AI summary
A method of sending a TCI, a network-side device and a terminal device are provided. The method includes selecting, based on a link type, a channel, a RS type, or a CORESET, at least one TCI state from configured candidate TCI states, to establish a TCI state table including correspondence between the TCI state and an RS set, or correspondence among the TCI state, the RS set, and a QCL type, or correspondence between the TCI state and a channel type; sending the TCI state table and an identifier of the link type, the channel, the RS type or the CORESET corresponding to the TCI state table. By establishing a corresponding TCI state table based on the link type, the channel, the RS type or the CORESET, the TCI state table can be configured according to application scenario needs, thereby satisfying TCI state indication requirements in different scenarios.