Terminal and Network Devices for Relay Data Session Matching

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Solution Overview

Problem

In existing communication systems, relay UEs may fail to correctly transmit data due to incompatibility between the type of relay data sent by remote UEs and the type of sessions established between the relay UE and the core network, leading to data transmission failures.

Innovation Solution

Implementing a method for data transmission that involves configuring terminal devices and network devices to ensure compatibility between relay data types and session types by using short-range communication configurations and UE route selection policies to align the types of relay data and PDU sessions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If relay UE establishes sessions with core network for data transmission, then data transmission capability is improved, but type incompatibility between relay data and session causes transmission failure

Engineering Contradiction:

Improvedata transmission reliabilityVSAvoidsession type compatibility

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent changes the parameter of session type configuration to match relay data types. The network device configures the relay UE with specific session types (e.g., IPv4, IPv6, Ethernet) that correspond to the types of relay data that will be transmitted, ensuring parameter compatibility between the session and the data being transmitted through the relay.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If relay UE supports multiple types of relay data, then service versatility is improved, but session configuration complexity increases

Engineering Contradiction:

Improverelay data type supportVSAvoidsession management complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the session management by creating separate PDU sessions for different data types. Instead of managing one complex multi-type session, the system establishes distinct sessions (e.g., one for IPv4 relay data, another for Ethernet relay data), allowing the relay UE to handle multiple data types while maintaining simpler, dedicated session configurations for each type.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent enables the relay UE to function universally across multiple data types by establishing multiple PDU sessions with the core network, where each session is configured for a specific data type. This multi-functionality approach allows the relay UE to adapt to different relay data types without requiring a single complex session configuration.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12425946B2Terminal device and network device

Publication Date: 2025.09.23 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

Terminal devices and a network device are provided. A first terminal device includes a transceiver, a processor, and a memory storing computer programs. The computer programs, when executed by the processor, are operable with the processor to: cause the transceiver to receive first information and relay-data type information corresponding to the first information from a network device, where the relay-data type information is indicative a type of relay data, and cause the transceiver to send relay data of the type to a second terminal device.