Sidelink Synchronization Source Selection Using Device Type Classification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In PC5 communication networks, frequent changes in signal intensity due to relative positional relationships between terminals lead to unstable synchronization sources, making it difficult to achieve stable synchronization across the network.
Innovation Solution
A communication apparatus equipped with a detection unit to identify potential synchronization sources, an acquisition unit to gather information from these sources, and a setting unit to prioritize and set a predetermined type of communication apparatus as the synchronization source, thereby stabilizing network synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a PC5 communication terminal selects a synchronization source based on signal intensity, then the terminal can achieve synchronization, but the synchronization source changes frequently due to relative positional relationships, making it difficult to achieve stable synchronization in the whole network
Solution Approach 1:
The invention changes the selection parameter from signal intensity to device type classification. By dividing communication terminals into first type (fixed or highly reliable) and second type (movable or less reliable), the system achieves stable synchronization by prioritizing device type over signal strength, preventing frequent source changes due to positional relationships
Solution Approach 2:
The invention creates a virtual classification system that copies the stability characteristic of fixed terminals to movable terminals through type assignment. By assigning synchronization source status based on device type rather than actual signal conditions, the system maintains synchronization stability without requiring physical fixed infrastructure
Data Source
AI summary
A communication apparatus includes a detection unit configured to detect at least one different communication apparatus capable of serving as a synchronization source and capable of performing sidelink communication, an acquisition unit configured to acquire predetermined information from each of the at least one different communication apparatus detected by the detection unit, and a first setting unit configured to, in a case where a predetermined operation setting regarding a synchronization priority order has been made and the first setting unit determines that there is a different communication apparatus from which information indicating that the different communication apparatus is a predetermined type of communication apparatus that is to serve as the synchronization source has been acquired, among the at least one different communication apparatus, based on the predetermined information acquired by the acquisition unit, set the different communication apparatus from which the information has been acquired as a time synchronization source.