olemus
kontekstist sõltuv vahesõlm võrgus
= a context-depending component that serves as an intermediary for transmitting data between different parts of a network

näiteid
http://4g5gworld.com/ltefaq/what-relay-node-and-how-does-relaying-works-lte-advanced

https://nutaq.com/relay-node-concept-lte

https://www.eecis.udel.edu/~elloyd/papers.d/toc06.pdf

https://coinmarketcap.com/academy/glossary/relay-nodes

vt ka
- järgur
- retranslaator