Probably a Chinese state sponsored plan to decimate western telecom technology
Chinese Telecom Equipment manufacturers are probably in league with the Chinese state to decimate western telecom technology capability.
This is not China bashing - one should have a lot of respect for ancient creativity and current work ethic of the Chinese people - However do you want ALL of your telecom equipment to be manufactured by a non-democratic autocratic regime?
That is what will happen if Ericsson, NSN, ALU are NOT allowed to compete on a level playing field.
One can never be sure when discussing China but one could make an educated guess that Huawei and ZTE enjoy cheap loans from the Chinese state owned banks. There may be state sponsored industrial espionage at play here as well. Europeans and other democracies have been allowing Huawei and ZTE to clean up.