Their recent 'maneuverable subsatellite' on the last Shenzhou was a real dud.    From Wordnik.com.  [Is the International Space Station Truly International? - NASA Watch] Reference

KAGUYA has a subsatellite OKINA which can relay the radiowave between the ground and the main satellite, thus establishing a link between the ground station and the main satellite while it is over the far side of the Moon.    From Wordnik.com.  [Archive 2009-02-01] Reference