Hi JC, well before I answer I must warn you I am completely lost when it comes to the technicality of internet connections (- i know words like modem, broadband, ISP but that's about it!!
However, I did try to listen and understand whe they explained the systems on board the aircraft. They did say that seats on one side of the aisle were wireless and the seats on the other side were cable. But as for knowing what exactly that meant, I have to confess I was lost!
So, in answer to your question: it was both!
Hope that makes sense!