Relay UE Request Message for Remote Network Data Acquisition

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Solution Overview

Problem

In the scenario of UE-to-network relay (U2N relay), there is no suitable solution for a remote UE to efficiently obtain messages sent by a network device, such as system and paging messages.

Innovation Solution

A remote UE sends a request message to a first relay UE to obtain messages from a network device, which are then forwarded through one or more relay UEs, utilizing multi-hop or multi-path relay scenarios to ensure efficient message acquisition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a remote UE directly communicates with the network device, then communication efficiency is improved, but in U2N relay scenarios the remote UE cannot efficiently obtain network messages

Engineering Contradiction:

Improvemessage acquisition efficiencyVSAvoidrelay communication complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent introduces a relay UE as an intermediary node between the remote UE and the network device. The relay UE receives request messages from the remote UE, forwards them to the network device, and then relays the network messages back to the remote UE. This mediator approach enables message acquisition in U2N relay scenarios while maintaining communication efficiency.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The communication path is segmented into multiple hops: remote UE → relay UE → network device and back. The request message and network message are separately handled through different transmission paths, with the relay UE managing the segmentation and reassembly of communication flows between different network layers.

Inventive Principle:

Principle #1Segmentation

2Reliability

If multi-hop relay is used to enable remote UE communication, then message acquisition is enabled, but transmission delay increases

Engineering Contradiction:

Improvemessage delivery reliabilityVSAvoidtransmission delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The remote UE sends a request message in advance to the relay UE before needing the network message. The relay UE prepares to forward this request to the network device, and the network device can prepare the appropriate response message. This preliminary action reduces waiting time and ensures faster message delivery when needed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The relay UE maintains continuous communication links with both the remote UE and the network device, ensuring that message forwarding can occur without interruption. The relay UE continuously monitors and manages the relay connection, reducing delays caused by connection establishment or re-establishment.

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentEP4712571A1Wireless communication method, user equipment and network device

Publication Date: 2026.03.18 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

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AI summary

Provided are a wireless communication method, a user equipment (UE) and a network device. The method comprises: a remote UE sending a request message to a first relay UE, wherein the request message is used for requesting, from the first relay UE, a first message which is sent by a network device. The introduction of a request message facilitates a remote UE in obtaining a message, which is sent by a network device.