Repeater is the device that is placed in the middle of the channel to compensate for channel loss.
Whether including clock recovery circuit determines it's a redriver or a retimer.
This note shows how to build IBIS AMI model for redrivers and retimers based on existing Rx and Tx equalization design.
If you have no experience with Tx/Rx IBIS AMI Modeling, please refer to materials through below link:
"新入职工程师必读课程 - IBIS AMI 建模 (SystemVue+ADS)"