  Private network deployment is gaining momentum in warehouses, retail,
automation, health care, and many such use cases to guarantee mission-critical
services with less latency. Guaranteeing the delay-sensitive application in
Wi-Fi is always challenging due to the nature of unlicensed spectrum. As the
device ecosystem keeps growing and expanding, all the current and future
devices can support both Wi-Fi and Private Cellular Network (CBRS is the
primary spectrum in the US for private network deployment). However, due to the
existing infrastructure and huge investment in the dense Wi-Fi network,
consumers prefer two deployment models. The first scenario is deploying the
private network outdoors and using the existing Wi-Fi indoors. The second
scenario is to use the existing Wi-Fi network as a backup for offloading the
traffic indoors and parallely utilizes the private network deployment for less
latency applications. Hence, we expect, in both scenarios, a roaming between
two technologies \emph{i.e.,} Wi-Fi and Private Cellular Network. In this work,
we would like to quantify the roaming performance or service interruption time
when the device moves from Wi-Fi to Private Network (CBRS) and vice-versa.
