Terminal TCI State Indication via DCI Field Values
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Solution Overview
Problem
In future radio communication systems, the method of indicating the Transmission Configuration Indication (TCI) state is not clearly defined, leading to potential deterioration of communication quality and throughput.
Innovation Solution
A terminal equipped with a receiving section to receive information on multiple TCI states and a control section to determine the TCI state based on specific fields in the Downlink Control Information (DCI), applying these states to various types of signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the method of indicating TCI state is not clearly defined, then the system maintains flexibility in future radio communication systems, but communication quality and throughput deteriorate
Solution Approach 1:
The patent applies parameter changes by utilizing specific field values within existing DCI structures to indicate TCI states. By changing the interpretation or values of existing DCI fields rather than creating entirely new signaling mechanisms, the system achieves reliable TCI state indication while maintaining compatibility with current system architecture and avoiding excessive complexity.
2Productivity
If the method of indicating TCI state is not clearly defined, then the system allows for future advancements in LTE and successor systems, but throughput deteriorates
Solution Approach 1:
The patent implements universality by designing the TCI state indication method to work across multiple types of signals and channels. The same DCI field values can indicate TCI states for different signal types, allowing the mechanism to serve multiple functions and improve throughput across various communication scenarios without requiring separate indication methods for each signal type.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes a receiving section that receives information indicating a plurality of transmission configuration indication (TCI) states, and receives downlink control information (DCI) indicating one or more TCI states out of the plurality of TCI states, and a control section that determines whether the DCI is DCI not indicating scheduling of a physical downlink shared channel nor a physical uplink shared channel, based on values of a plurality of specific fields included in the DCI, and applies the one or more TCI states to a plurality of types of signals. According to one aspect of the present disclosure, TCI state indication can be appropriately performed.