UE-to-UE Relay Authorization and Policy Configuration

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Solution Overview

Problem

Existing technologies fail to enable secure UE-to-UE relay communication due to unresolved issues in authorization and policy parameter configuration, preventing terminals from establishing relay connections that meet security mechanisms.

Innovation Solution

A method where terminals provide relay communication capability information to network functions, allowing these functions to determine and configure authorization and policy parameters based on this information, enabling authorized discovery and connection establishment for UE-to-UE relay.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If UE-to-UE relay mechanism is introduced to satisfy NCIS service requirements, then service capabilities and connectivity are improved, but authorization and policy parameter configuration problems prevent secure communication

Engineering Contradiction:
Improverelay communication capabilityVSAvoidsecurity mechanism compliance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies preliminary action by having the terminal report relay communication capability information to the network function before establishing relay connections. The network function then determines and configures authorization and policy parameters in advance, ensuring security requirements are met before actual relay communication occurs. This proactive configuration prevents security issues during runtime.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The network function acts as an intermediary between the terminal and the relay communication process. It receives capability information from the terminal, determines appropriate authorization and policy parameters, and configures them to the terminal. This intermediary role ensures that security and policy requirements are properly enforced while enabling relay communication.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If authorization and policy parameter configuration is implemented for UE-to-UE relay, then security and control are improved, but system complexity increases

Engineering Contradiction:
Improveauthorization and policy controlVSAvoidconfiguration system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The terminal autonomously reports its relay communication capability information to the network function without requiring complex manual configuration. The network function then automatically determines and configures the appropriate authorization and policy parameters. This self-service approach reduces system complexity by eliminating manual intervention while maintaining proper security controls.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system manages complexity by dynamically configuring authorization and policy parameters based on the terminal's reported capability information. Rather than requiring complex static configuration, the system adapts parameters according to the specific terminal's capabilities and requirements, simplifying the overall configuration process while maintaining control.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4117329B1Authorization and policy parameter configuration method, terminal, and network functions
Publication Date: 2026.02.18 VIVO MOBILE COMM CO LTD
  • EP4117329B1 patent drawingFigure 1
  • EP4117329B1 patent drawingFigure 2
  • EP4117329B1 patent drawingFigure 3

AI summary

The present invention provides an authorization and policy parameter configuration method, a terminal, and network functions. The method is applied to a terminal and comprises: sending, to a first network function, terminal-to-terminal relay communication capability information and/or a terminal policy container; and receiving authorization and policy parameters for relay communication sent from a second network function, the authorization and policy parameters for relay communication being generated according to the relay communication capability information and/or the terminal policy container.