Michaelrake:wifi, chairman of BT Group, is a killer.

BT, the world's oldest telecoms company, has topped the world's top 500 for nearly a century.　　This week, Michael Rake, chairman of the BT Group, accepted an interview with the reporter, expressing his views on the transformation of China's fixed-network operators. Beijing News: Like BT, China's fixed-network operators have also carried out large-scale optical access infrastructure construction, but also put forward a broadband based on the loading of millions of WiFi hotspots.　　Is such a fixed network operator transformation mode reasonable? Michael Rake: We communicated with unicom about these situations. I think the data downloaded now is massive, people can only rely on optical fiber and mobile network is unable to carry so much data download volume.　　In the future, satellites and copper cables must be obsolete, the most important three technologies are fiber, WiFi and mobile network, these three will coexist to meet the needs of users.　　BEIJING News: What kind of killer apps will be born in the global broadband trend? Michael Rake: The development trend of broadband: the most important thing is that the speed is very fast, and then one is to the entire network capacity and the ability to have very high requirements.　　It's clear that WiFi itself is a killer technology. Newspaper reporter Zhao