When you have four arrays like the 052C, and have them linked to the same screen and battle management system, you already have an operational definition of the sensor fusion buzzword. That's one of the more fundamental aspects of AEGIS.
I think the 052C system more as an S-300 type system (which carries much weight itself as an anti air system) with sensor and data fusion qualities.
On the Tor M1 and HQ-16, two different things. Tor M1 is a short range point defense system and HQ-16 is medium range system. Organizationally they're not even in the same units in the PLA. The Tor M1 is likely to have been replaced by even more refined versions of the HQ-7, or by other developments like ground launched PL-12.