Neither. It means an aircraft meeting RNAV1 and has an appropriate GPS (or GLONASS or Galileo). This would be standard for European RNAV1 operations and could fly any RNAV1 route, departure or approach.
Under the FAA, an aircraft can meet RNAV1 without a GPS. This could then fly RNAV1 routes and RNAV1 DME/DME/IRU departures and approaches (which are constrained by ground navaid placement and availability). This plane could not fly an RNAV1 (GNSS) approach.