Terminal TCI State Application Timing Control
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Solution Overview
Problem
Existing radio communication systems, such as those in next-generation mobile communication systems, face challenges in determining a unified Transmission Configuration Indication (TCI) state for multiple types of channels and reference signals, leading to potential degradation in communication quality and throughput.
Innovation Solution
A terminal equipped with a receiving section to receive configuration information related to a TCI state and a control section to determine the application initiation timing of the TCI state, based on the received information, allowing for appropriate recognition and application of the TCI state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a unified TCI state is applied to multiple types of channels and reference signals, then communication quality and throughput are improved, but the complexity of determining and applying the TCI state increases
Solution Approach 1:
The patent segments the TCI state determination process into distinct components: configuration information reception, indication information reception, and application initiation timing determination. The control section handles each component separately based on specific conditions, reducing overall complexity while maintaining unified TCI state application across multiple channels and reference signals.
Solution Approach 2:
The patent applies preliminary action by configuring application initiation timing information in advance through configuration information. This pre-configuration allows the terminal to determine the correct application timing without complex real-time calculations, thereby improving communication quality while managing determination complexity.
2Reliability
If the TCI state application timing is not clearly defined, then device complexity is reduced, but communication quality and throughput deteriorate
Solution Approach 1:
The patent implements dynamic timing determination where the application initiation timing is flexibly selected from multiple options based on specific conditions. The control section determines timing dynamically using either a first timing option (based on indication reception timing) or a second timing option (based on configuration reception timing), allowing adaptation to different scenarios without excessive complexity.
Solution Approach 2:
The system uses feedback mechanisms where the terminal receives both configuration information and indication information, and the control section determines application timing based on feedback from these received information elements. This ensures clear timing definition while managing complexity through condition-based selection.
3Adaptability or versatility
If multiple TCI states are associated with a single TCI field codepoint, then adaptability is improved, but the difficulty of detecting and measuring the correct TCI state increases
Solution Approach 1:
The patent segments the TCI state identification process by associating specific timing conditions with specific TCI states. The control section identifies the correct TCI state by segmenting the selection based on whether the first timing option or second timing option applies, reducing identification difficulty while maintaining multiple state associations.
Solution Approach 2:
The patent introduces timing determination as an intermediary mechanism between the TCI field codepoint and the actual TCI state application. This intermediary helps identify the correct TCI state by using timing information derived from configuration and indication reception, thereby reducing detection difficulty while supporting multiple state associations.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes: a receiving section that receives configuration information including a configuration related to a transmission configuration indication (TCI) state to be applied to a plurality of types of channels and indication of the TCI state, a TCI field codepoint included in the indication being associated with a plurality of the TCI states; and a control section that determines, based on information related to application initiation timing of the TCI state included in the configuration information and the indication, the application initiation timing of the TCI state. According to one aspect of the present disclosure, it is possible to appropriately recognize a TCI state.