  We present observations of persistent oscillations of some bright features in
the upper-chromosphere/transition-region above sunspots taken by IRIS SJ 1400
{\AA} and upward propagating quasi-periodic disturbances along coronal loops
rooted in the same region taken by AIA 171 {\AA} passband. The oscillations of
the features are cyclic oscillatory motions without any obvious damping. The
amplitudes of the spatial displacements of the oscillations are about 1 $^{"}$.
The apparent velocities of the oscillations are comparable to the sound speed
in the chromosphere, but the upward motions are slightly larger than that of
the downward. The intensity variations can take 24-53% of the background,
suggesting nonlinearity of the oscillations. The FFT power spectra of the
oscillations show dominant peak at a period of about 3 minutes, in consistent
with the omnipresent 3 minute oscillations in sunspots. The amplitudes of the
intensity variations of the upward propagating coronal disturbances are 10-15%
of the background. The coronal disturbances have a period of about 3 minutes,
and propagate upward along the coronal loops with apparent velocities in a
range of 30-80 km/s. We propose a scenario that the observed transition region
oscillations are powered continuously by upward propagating shocks, and the
upward propagating coronal disturbances can be the recurrent plasma flows
driven by shocks or responses of degenerated shocks that become slow
magnetic-acoustic waves after heating the plasma in the coronal loops at their
transition-region bases.
