Downlink Signal Detection Using Relayed 5G Configuration

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Solution Overview

Problem

Existing methods for terminal access between LTE and 5G networks require high complexity in signal detection due to the need for cell access mechanisms that are not optimized for seamless transitions.

Innovation Solution

A method and device for signal detection that simplifies the downlink signal detection process by providing system configuration information, such as frequency points, synchronization, and reference signal details, allowing terminals to efficiently detect and synchronize with 5G networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the terminal directly receives system configuration information from multiple transmission points, then the signal detection accuracy is improved, but the terminal's processing complexity and energy consumption increase

Engineering Contradiction:
Improvesignal detection accuracyVSAvoidterminal processing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The first transmission point acts as an intermediary to relay system configuration information of the second transmission point to the terminal. This mediator approach allows the terminal to obtain necessary configuration data without directly interacting with multiple transmission points, thereby maintaining detection accuracy while reducing processing complexity and energy consumption at the terminal side.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the terminal performs signal detection on multiple transmission points independently, then the coverage and service quality are improved, but the energy consumption and detection time increase

Engineering Contradiction:
Improveservice coverageVSAvoiddetection time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system configuration information of the second transmission point is pre-obtained and relayed by the first transmission point before the terminal needs to perform signal detection. This preliminary provision of configuration data enables the terminal to conduct detection more efficiently across multiple transmission points, expanding service coverage while reducing the time required for detection operations.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4489349B1Method and device for signal detection
Publication Date: 2026.05.13 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • EP4489349B1 patent drawingFigure 1~2
  • EP4489349B1 patent drawingFigure 3~4
  • EP4489349B1 patent drawingFigure 5~6

AI summary

Disclosed are a method and device for signal detection. The method comprises: a terminal receives system configuration information of a second transmission point sent by a first transmission point; the terminal performs downlink signal detection on the second transmission point according to the system configuration information of the second transmission point. The terminal in embodiments of the present invention can obtain the system configuration information of the second transmission point from the first transmission point, thereby reducing the complexity of signal detection on the second transmission point by the terminal.