Han Solo's carbonite-encased form is being transported via repulsorlift.
Repulsorlift technology involved generating thrust by counteracting a planet's gravity, enabling vehicles to hover or fly above the surface. These engines, sometimes called "antigravs," worked by generating negative gravity fields, called "repulsor fields," that pushed back against the planet's gravitational pull.
Repulsorcrafts were vehicles that relied on repulsorlift technology as their main source of movement, with speeder bikes being a prime example. Bakur Repulsor Corporation was a manufacturer of these engines, while Aratech Repulsor Company specialized in building vehicles that utilized this technology. Examples of vehicles using this technology include the Gian heavy patrol speeder, the Single Trooper Aerial Platform (STAP), the Flash speeder, the AAT Battle Tank, and patrol transports.
Starships used repulsorlift engines as a supplementary means of propulsion, mainly for flight within an atmosphere and for docking maneuvers. Many vessels, like the YT-1300 light freighter, had a specific fusion generator dedicated to powering the repulsorlifts. However, smaller craft such as the X-wing starfighter drew power from their sublight engines to operate their repulsorlifts.
Everyday items like chairs and speaking platforms also used repulsorlift technology. Furthermore, repulsor technology could be used offensively to produce shockwaves that could repel enemies, similar to a Force push. This was notably integrated into Mandalorian vambraces and used by the Haxion Brood's bounty hunters.