Multi-TRP TCI State Activation Across Selected Component Carriers
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing transmission configuration indicator (TCI) state activations in multi-TRP transmission systems with multiple component carriers, leading to suboptimal performance and resource allocation.
Innovation Solution
Configuring a component carrier (CC) list to exclude or include select CC IDs before sending TCI state activation through radio resource control (RRC) signaling, ensuring alignment with preconfigured lists at user equipment (UE) for optimized TCI state application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If TCI state activation is sent without configuring CC list, then signaling is simpler, but TCI state application accuracy deteriorates due to mismatch between RAN and UE configurations
Solution Approach 1:
The patent applies preliminary action by configuring the CC list in advance through RRC signaling before sending TCI state activation. This pre-configuration ensures that both the RAN node and UE have consistent knowledge of which component carriers are active, thereby preventing configuration mismatches and ensuring accurate TCI state application without requiring complex real-time coordination.
2Manufacturing precision
If CC list configuration is added to ensure TCI state alignment, then TCI state application accuracy is improved, but device complexity increases due to additional configuration steps
Solution Approach 1:
The patent uses the CC list as an intermediary mechanism that mediates between the RAN node's TCI state activation decisions and the UE's configuration. By introducing this intermediate configuration layer through RRC signaling, the system achieves accurate TCI state application while maintaining a clear separation of concerns: the CC list serves as a shared reference that both RAN and UE can independently validate against their local configurations.
3Ease of manufacture
If TCI state activation is sent for all CCs, then resource allocation is simpler, but resource utilization efficiency deteriorates due to unnecessary activations
Solution Approach 1:
The patent applies local quality by enabling selective TCI state activation for specific component carriers based on their individual needs. The CC list configuration allows the RAN node to identify and activate TCI states only for the relevant CCs that require them, rather than blanket-activating for all CCs. This targeted approach improves resource utilization efficiency while maintaining straightforward allocation procedures for the identified subset.
Data Source
AI summary
Aspects relate to sending a transmission control indicator (TCI) state activation in a multiple transmission and reception point (multi-TRP) transmission system having multiple component carriers. A component carrier (CC) list of component carrier identifiers (IDs) may be configured to either exclude or include a select CC ID prior to sending a transmission configuration indicator (TCI) state activation within control signaling to at least one user equipment (UE) in the RAN. Depending on whether the CC ID is excluded or included in the CC list, the receiving UEs in the system may be configured to apply a TCI state activation for the CC ID either included or excluded in the CC list, or not apply any TCI state to any CC ID by ignoring the control signaling.