Relay Session Establishment Using RSC Information

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Solution Overview

Problem

The existing technologies for relay communication do not clearly define how an electronic device, including a remote device and/or a relay device, establishes a relay session using the Relay Service Code (RSC).

Innovation Solution

The method involves the relay device receiving RSC information from the remote device and determining parameter information based on this RSC information to establish a relay session.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If RSC information is introduced to protect service attribute privacy, then privacy protection is improved, but session establishment clarity deteriorates

Engineering Contradiction:
Improveservice attribute privacyVSAvoidsession establishment process
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the session establishment process into distinct phases: RSC information reception, parameter determination based on RSC, and relay session establishment. This segmentation clarifies the process flow while maintaining privacy protection, resolving the contradiction between privacy security and process clarity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies preliminary action by having the relay device determine parameter information based on RSC before actually establishing the relay session. This preparatory step organizes the complex process into manageable stages, making the overall session establishment clearer while preserving the privacy benefits of RSC.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If RSC information is used for relay session establishment, then service privacy is protected, but implementation clarity worsens

Engineering Contradiction:
Improveservice attribute privacyVSAvoidrelay session establishment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent enables the relay device to autonomously determine parameter information based on received RSC information without requiring additional external configuration or complex manual intervention. This self-service approach simplifies operation while maintaining the privacy protection benefits of RSC-based establishment.

Inventive Principle:
Principle #25Self-service

3Reliability

If parameter information is determined based on RSC information, then privacy protection is enhanced, but process definition clarity deteriorates

Engineering Contradiction:
Improveservice attribute privacyVSAvoidprocess definition
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The patent establishes a feedback mechanism where the relay device uses received RSC information to determine appropriate parameter information, creating a closed-loop process. This feedback approach ensures that the parameter determination is systematically defined and reproducible, preventing information loss while maintaining privacy protection.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4185071B1Session establishment method, electronic device and storage medium
Publication Date: 2025.05.21 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • EP4185071B1 patent drawingFigure 1~3
  • EP4185071B1 patent drawingFigure 4~6
  • EP4185071B1 patent drawingFigure 7

AI summary

The present application discloses a session establishment method, comprising: an electronic device determining relay service code (RSC) information, and determining, on the basis of the RSC information, parameter information for establishing a relay session. The present application further discloses an electronic device and a storage medium.