> it will be only practical to deploy in dense urban areas in my view Docomo has an eye towards an initial roll-out in time for the 2020 Olympics, and the deve

> it will be only practical to deploy in dense urban areas in my view Docomo has an eye towards an initial roll-out in time for the 2020 Olympics, and the development of a 'phantom cell' user plane makes a lot of sense given the device density Tokyo. The MIMO beam forming looks like a huge challenge. Glad to see Docomo moving the goal post forward, though!