What is differece between FMC and FMBC?

I found the answer in KDDI.
FMC (Fixed and Mobile Convergence) enables a variety of services and contents anywhere, any time, regardless of different communication and access means, be if fixed or mobile.

FMBC(Fixed Mobile and Broadcast Convergence0 is referring to fixed-line and mobile communications, and broadcasting, which in KDDI’s case is CATV. More correctly, “convergence” will be achieved among services. For that reason, some people refer it instead as the “multi-screen concept.” This expresses the idea that whether customers are viewing the displays, or screens, of mobile phone handsets, PC monitors, or televisions, they will be able to access convergent services without having to think about their different communication infrastructures.