Bon, donc d'après toi son truc c'est du beamforming. En effet ce n'est pas nouveau.

Ça rejoint l'un des commentaires postés sur le site en lien :

I have worked with wireless networks for the past 15 years, both in research and in startups. I just want to make a simple statement that may shed some some light on whether this can work and more importantly how novel this invention is. Then you make up your mind (mine is made):

Go to DIDO website and downoad their whitepaper. The way you can eliminate interference in wireless channels is explained there: You take many potentially interfering WiFi access points (AP) (as many as you want , 10, 100) and you link them together with wires, so they become all connected to a shared node (DIDO calls it a central "data center"). Once these 10 or 100 AP antennas are connected, what you have effectively built is a single virtual transmitting device with 10 or 100 transmit antennas. Such a device is well known to the wireless industry as "Distributed Antenna System".
Now send linear combinations of all the data streams expected by the 10 or 100 users to all the antennas, but carefully select the coefficient of the combinations such that a given data stream only reaches its intended user why not interfering with the other 9 or 99 users. Simple algebra using orthogonality principle will do the trick This process is well known to the wireless industry as "transmit beamforming". Once interference is gone, you can do the same process with as many users as you like, just link more AP together (this has a cost by the way).

So none of the key components of the invention are new.

Now you may say, but wait Distributed Antenna Systems are known , beamforming is known, but combining these two concepts must be novel. Problem: This precisely was proposed 5 years ago by Alcatel-Lucent under the name of NETWORK MIMO. Network MIMO (also called as "CoMP") is currently being standardized for LTE cellular networks and beyond as a way to resolve interference in cellular networks.
So in summary, my thinking is: Yes, this works. No this is not new. But congrats to the "inventor" for coming up with a nice new name for it!