Multi-Hop Relay Selection for Long-Range Reliable Communication
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Solution Overview
Problem
Existing communication systems face limitations in supporting multiple connections and ensuring reliable communication over extended distances, particularly in scenarios involving device-to-device and vehicle-to-everything communications, where traditional relay mechanisms are inadequate for multi-hop relaying.
Innovation Solution
A method and device for relay communication that enables a first terminal to select a relay terminal based on specific trigger conditions related to link status, facilitating multi-hop relay links to enhance communication reliability and coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional relay mechanisms are used, then communication can be established, but communication distance and reliability are limited
Solution Approach 1:
The communication path is segmented into multiple hops by introducing intermediate relay terminals. Instead of a direct single-hop connection, the communication is divided into multiple segments (first hop, second hop, etc.), where each relay terminal forwards the signal to extend the overall communication distance while maintaining reliability through selective relay selection based on link status trigger conditions
2Reliability
If relay selection is based on simple conditions, then relay selection is fast, but communication reliability is insufficient
Solution Approach 1:
The relay selection process incorporates feedback mechanisms where the first terminal continuously monitors link status trigger conditions (such as signal quality, connectivity state) and uses this feedback to dynamically select or reselect relay terminals. This ensures reliable communication by adapting to changing network conditions while maintaining efficient selection through condition-based triggering
3Length of moving object
If multi-hop relay links are implemented, then communication distance is extended, but system complexity increases
Solution Approach 1:
The relay system implements self-service mechanisms where relay terminals autonomously forward communication signals without requiring centralized control for each hop. The first terminal independently monitors link status and triggers relay selection based on predefined conditions, reducing the complexity burden on the network controller while still enabling extended multi-hop communication
Data Source
AI summary
The present application relates to a relay communication method and a device. The method includes: on the basis of a first trigger condition, a first terminal selects a relay terminal meeting a requirement of the first terminal. The first terminal and the relay terminal are in a multi-hop relay link, and the first trigger condition is related to a link status.