UE Slice Preference Reporting in RRC-Connected 5G/6G Networks

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Solution Overview

Problem

In mobile communication systems, there is a need for a method by which a user equipment (UE) in a RRC-connected mode can efficiently report intended slice information to a base station.

Innovation Solution

The UE transmits UE capability information indicating support for reporting preference information associated with intended slice group information, receives a radio resource control (RRC) reconfiguration message with configuration information, and sends a message including the preference information to the base station based on this configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the UE reports detailed slice information to the base station, then the network resource management capability is improved, but the signaling overhead and complexity increase

Engineering Contradiction:

Improvenetwork resource management capabilityVSAvoidsignaling overhead

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts only the essential slice preference information from the complete slice configuration, reporting only the selected slice ID and preference indicator to the base station rather than the entire slice configuration data. This reduces signaling overhead while maintaining the necessary network resource management capability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of the base station requesting detailed slice information from the UE, the patent inverts the approach by having the UE proactively report its slice preference information. This reversal reduces the signaling burden on the network side while still providing the necessary information for resource management.

Inventive Principle:

Principle #13The other way round (Inversion)

2Reliability

If the UE reports slice information in RRC-connected mode, then the service quality is improved, but the RRC connection maintenance complexity increases

Engineering Contradiction:

Improveservice qualityVSAvoidRRC connection maintenance

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies partial action by reporting only the necessary slice preference information (slice ID and preference indicator) rather than complete slice configuration data. This partial reporting maintains service quality while reducing the complexity of RRC connection maintenance.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The UE prepares and reports slice preference information in advance during RRC-connected mode, before actual data transmission begins. This preliminary action ensures that the base station has the necessary information for resource allocation, improving service quality without requiring additional connection maintenance complexity during data transmission.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20260075510A1Mobile termination-based slice reselection method and device in next generation mobile communication system

Publication Date: 2026.03.12 SAMSUNG ELECTRONICS CO LTD

AI summary

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to the present disclosure, a terminal in an RRC connection mode in a mobile communication system can report intended slice information to a base station.