Unified TCI State Indication for Multi-CC Wireless Control

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing transmission configuration indicators (TCIs) across multiple component carriers (CCs) in a unified manner, particularly for channels or signals associated with a control resource set (CORESET) pool index value.

Innovation Solution

The implementation of a unified transmission configuration indicator (TCI) state indication method, where a user equipment (UE) receives downlink control information (DCI) from a base station that includes a unified TCI state indication applicable across multiple CCs, and applies this indication to the corresponding channels or signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate TCI state indications are used for each component carrier, then each CC can be independently configured, but the system complexity increases and consistency across multiple CCs deteriorates

Engineering Contradiction:

ImproveIndependent TCI configuration per CCVSAvoidTCI management complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges separate TCI state indications for multiple component carriers into a unified TCI state indication mechanism. The unified TCI state indication is applied across multiple CCs simultaneously, reducing the number of separate configurations needed while maintaining the ability to independently manage TCI states when necessary through the list-based selection approach.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The unified TCI state indication mechanism serves multiple component carriers simultaneously, making a single TCI configuration serve universal purposes across multiple CCs. This multi-functional approach allows the same TCI state to be applied to different CCs based on the list configuration, reducing overall system complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Productivity

If unified TCI state indication is applied across multiple CCs, then consistency and efficiency improve, but flexibility in individual CC configuration may be reduced

Engineering Contradiction:

ImproveTCI state indication efficiencyVSAvoidIndividual CC configuration flexibility

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent segments the set of component carriers into a configurable list that determines which CCs receive the unified TCI state indication. This segmentation allows selective application of the unified TCI state to specific CCs while excluding others, thereby maintaining individual configuration flexibility for CCs not included in the list.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The list of CCs configured for unified TCI state indication can be dynamically adjusted to balance between unified configuration efficiency and individual CC flexibility. The network can modify which CCs are included in the unified indication based on current operational requirements, making the system adaptable to different scenarios.

Inventive Principle:

Principle #15Dynamics

3Manufacturing precision

If multiple separate TCI state indications are transmitted, then each CC can have optimized configuration, but the downlink control information overhead increases

Engineering Contradiction:

ImproveTCI configuration precision per CCVSAvoidDCI overhead

Core Design Contradiction:

Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent combines multiple separate TCI state indications into a single unified TCI state indication that applies to multiple CCs simultaneously. This merging reduces the quantity of DCI overhead by transmitting one unified indication instead of multiple separate indications, while the list configuration ensures precise application to the intended CCs.

Inventive Principle:

Principle #5Merging (Combining)

4Device complexity

If unified TCI state indication is implemented across multiple CCs, then management complexity reduces, but the requirement for list configuration and coordination increases

Engineering Contradiction:

ImproveTCI state management complexityVSAvoidList configuration flexibility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent establishes a pre-configured list of component carriers that will receive unified TCI state indications before actual TCI state transitions occur. This preliminary configuration of the list simplifies the real-time TCI state management by pre-determining which CCs should receive unified indications, reducing the complexity of dynamic decision-making during operation.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12267842B2Applying a unified transmission configuration indicator state indication to channels or signals associated with a control resource set pool index value

Publication Date: 2025.04.01 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, downlink control information (DCI) that includes a unified transmission configuration indicator (TCI) state indication to be applied for a channel or a signal associated with a control resource set (CORESET) pool index value in a component carrier (CC), wherein the CC is configured as part of a list for simultaneous unified TCI state indication across multiple CCs. The UE may apply the unified TCI state indication to the channel or the signal associated with the CORESET pool index value in one or more CCs indicated in the list. Numerous other aspects are described.