The 1 ms latency is for a certain class of devices known that qualify for ultra-reliable low latency communications (URLLC). According to this presentation (ht

The 1 ms latency is for a certain class of devices known that qualify for ultra-reliable low latency communications (URLLC). According to this presentation (http://kom.aau.dk/~nup/2016-06-27_Yilmaz-5G%20Ultra-reliable-Low-latency_final.pdf http://kom.aau.dk/~nup/2016-06-27_Yilmaz-5G%20Ultra-reliable...) that could include applications such as factory automation, motion control, and "the tactile Internet." I don't even want to speculate about what that last one means...