Feature-Context System Information Updates for Targeted UE Decoding

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Solution Overview

Problem

Existing wireless communications systems face inefficiencies in updating feature-context-specific configurations, as all UEs receive updates applicable only to feature-UEs, leading to unnecessary decoding by non-feature-UEs, which is resource-intensive and time-consuming.

Innovation Solution

Implement a new short message indicator to differentiate system information updates applicable only to feature-UEs, allowing non-feature-UEs to ignore updates, and utilize DCI formats with feature-specific RNTIs for faster FCP partition modifications, enabling feature-UEs to monitor specific search spaces for updates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If all UEs receive system information updates for feature combination configuration, then feature-UEs can be updated, but non-feature-UEs waste resources decoding unnecessary updates

Engineering Contradiction:

Improveupdate delivery reliabilityVSAvoidUE decoding energy consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent segments the UE population into feature-UEs and non-feature-UEs, and segments the system information updates into feature-specific updates and common updates. Feature-specific updates are targeted only to feature-UEs through specific DCI formats and RNTIs, while common updates are broadcast to all UEs. This segmentation eliminates unnecessary decoding by non-feature-UEs, reducing energy consumption while maintaining reliable update delivery to feature-UEs.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by providing different update mechanisms to different UE types. Feature-UEs receive feature-specific updates through dedicated DCI formats with feature-specific RNTIs, while non-feature-UEs receive only common updates through standard DCI formats. This localized approach ensures each UE type processes only relevant information, optimizing energy efficiency without compromising update reliability for the target group.

Inventive Principle:

Principle #3Local quality

2Reliability

If standard DCI formats are used for system information updates, then all UEs can receive updates, but update speed is slow due to universal monitoring requirements

Engineering Contradiction:

Improveupdate reception reliabilityVSAvoidupdate delivery speed

Core Design Contradiction:

ReliabilityVSSpeed

Solution Approach 1:

The patent segments the update delivery mechanism into standard DCI formats for common updates and feature-specific DCI formats for feature-specific updates. The feature-specific DCI formats use dedicated RNTIs and search spaces, allowing feature-UEs to monitor only relevant updates without waiting for universal broadcast cycles. This segmentation accelerates update delivery to feature-UEs while maintaining reliable reception through dedicated monitoring channels.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces feature-specific RNTIs as intermediaries between the network and feature-UEs. These RNTIs serve as dedicated identifiers that enable direct addressing of feature-UEs through specific DCI formats, bypassing the need for universal monitoring. This intermediary mechanism accelerates update delivery by creating a direct communication path while maintaining reliability through the structured RNTI-based addressing scheme.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Speed

If feature-specific DCI formats with feature-specific RNTIs are implemented, then update speed increases for feature-UEs, but system complexity increases

Engineering Contradiction:

Improveupdate delivery speedVSAvoidDCI format and RNTI management complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent segments the DCI format structure into common fields and feature-specific fields. The common fields maintain compatibility with standard DCI formats, while feature-specific fields provide targeted information only to feature-UEs. This segmentation allows the system to implement feature-specific updates without completely redesigning the DCI structure, thereby reducing the complexity increase while maintaining accelerated update delivery through the feature-specific portions.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent designs feature-specific DCI formats to be multi-functional, serving both as universal DCI structures for general purposes and as feature-specific indicators when particular RNTIs are used. This universality allows the same DCI format framework to handle both common and feature-specific updates, reducing system complexity by reusing existing structures rather than creating entirely new formats, while still enabling fast updates through the feature-specific RNTI mechanism.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250324354A1Feature context specific system information update

Publication Date: 2025.10.16 QUALCOMM INC

AI summary

Certain aspects of the present disclosure provide techniques for feature context specific system information update. A method for wireless communications by a user equipment (UE) includes receiving system information configuring a feature combination configuration. The method includes receiving signaling indicating an update to the feature combination configuration. The method includes, in response to the indication, monitoring a search space for signaling indicating the updated feature combination configuration.