What part of the xbox one handles wireless controller communication?

I have this problem also, but it is on a stock out-of-box retail unit. I also get interference with the bluetooth devices in the same room as the xbox. I purchased the front RF board to replace in hopes that will rectify the situation. What I don't understand is in the instructions it indicates the hard drive and optical drive must be removed to replace the RF. Why is that? It seems the motherboard assy can be removed without those steps.

Can anyone verify that I am addressing this problem correctly?

I have further investigated this issue and it would seem that the communication for the new xbox one is wifi-esque. Its not quite wifi but its not quite bluetooth. So by default it would be the wifi board that handles the controller connections. The RF board however has the antenna for the wifi board. To answer your question no you do not have to remove the ODD and HDD. You just need to take the metal chassis for the xbox out of the plastic housing, then you can gain access to the RF board and remove it. And for my own question I believe my problem is just the proximity of my console next to a router. I have eliminated what I believe is every other possibility including replacing the wifi board and even purchasinga mini pci wifi cable that adapts to a full sized antenna, issue still persists.

Hmm, very interesting. My router is also very close to the xbox. However that doesn't explain why the xbox causes interference with my bluetooth soundbar and bluetooth connections with my mobile phone when in vicinity of the xbox (connections drop and reconnect rapidly every 4-8 minutes for about 10-15 seconds). These interruptions only happen when the xbox is powered on. Thank you for the response.

Here, I may have mislead you in my explanation the two chips on the wifi card almost seem like they are the same but I'm fairly confident http://www.marvell.com/wireless/avastar/...

this one (the orange one on the diagram) is the one that handles controller communication. If you read into the specific details of the other card (the one in red) on that page you will see it does have a hand in bluetooth so maybe that is precisely what is going on.

So what you're saying is.. it looks like I purchased the wrong part :)

I guess I will need to order another wifi board and try that out. Looks easier to replace than the RF board at least. Andy, do you happen to have any use for this RF board?