Relay UE Data Handling for Secondary Authentication in 5G

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Solution Overview

Problem

In 5G communication systems, remote terminal devices accessing data networks via relay devices face inefficiencies in secondary authentication processes, leading to suboptimal communication efficiency and resource wastage.

Innovation Solution

The relay terminal device processes data based on the authentication result of the remote terminal device, either sending it to the data network upon successful authentication or discarding it upon failure, while also managing storage and indicating subsequent operations to optimize communication efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the relay terminal device stores data from the remote terminal device before authentication, then the data can be transmitted after successful authentication, but transmission resources are wasted when authentication fails

Engineering Contradiction:
Improvedata transmission success rateVSAvoidtransmission resource waste
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The relay terminal device performs authentication on the remote terminal device before storing or transmitting data. This preliminary authentication action ensures that only authorized devices will have their data stored and transmitted, preventing waste of transmission resources when authentication fails.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If the relay terminal device processes all received data, then communication efficiency is maintained, but processing complexity increases when authentication fails

Engineering Contradiction:
Improvecommunication efficiencyVSAvoiddata processing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Authentication is performed as a preliminary action before data processing. The relay terminal device determines whether to process data based on the authentication result, thereby reducing processing complexity for failed authentication cases while maintaining communication efficiency for successful cases.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent extracts the authentication check as a separate decision point from the data processing flow. By isolating the authentication verification step, the system can efficiently route data either to processing or to discarding based on authentication outcome, reducing overall processing complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

3Speed

If the relay terminal device transmits data without authentication verification, then transmission speed is improved, but network security is compromised

Engineering Contradiction:
Improvedata transmission speedVSAvoidnetwork security
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

Authentication verification is performed as a preliminary action before data transmission. This ensures network security is maintained while allowing fast transmission once authentication is complete, as the verification happens once before the data flow begins.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20260074906A1Communication method and apparatus, and system
Publication Date: 2026.03.12 HUAWEI TECH CO LTD
  • US20260074906A1 patent drawing
  • US20260074906A1 patent drawing
  • US20260074906A1 patent drawing

AI summary

A communication method. A relay UE receives and stores data from a remote UE. A result of authentication performed by a DN on the remote UE is obtained. The data network is configured to provide a service for the remote terminal device via the communication apparatus. The data is processed based on the result of the authentication. In response to the DN needing to perform authentication on the accessing remote UE, communication efficiency of the remote UE is improved.