How best to protect the Fianchettoed Bishop?

I'm curious, when it comes to positions that arise like in this Pirc Defense example in the above, how does one best protect the Fianchettoed Bishop? In this position, it would seem Black's Black-squared Bishop is absolutely essential to his future plans and therefor should not be traded off without a great deal of compensation. But it behooves White to rid himself of Black's Black-squared Bishop bearing down on the long a1-h8 diagonal. 

So...if one suspects his opponent is preparing an attack on his Fianchettoed Bishop, how do you best defend against an attack on your Fianchettoed Bishop and thus retain it?  

What about this, before White can accomplish the Queen-Bishop Battery Black takes the prophylactic moves h7-h6 and moves the King to h7?

I'm having the same issue.  Initiating an early queen side pawn storm when you see there's a possibility of the queen/bishop battery bearing down on h6 is an idea I've heard about but, I personally, at the lower elo level, have not been able to make this work. I just get skewered like a pig when white thinks to battery me like that. None of yall ever figured it out?  I've been forced to use the set up suggested by J_Young598 but with not-so-great results. 

I've been using the PIRC (Czech variation) with no fianchettoed bishop, but am wanting to branch out with the Kings Indian, and will run into this problem as well.  I actually was searching, "Protecting a fianchetto bishop" when I came across this post.  When I play against one, I always set up the Q-B battery as soon as the king castles. Rapid elo 8-900.