Illegally : Yes
Legally : US is far far ahead than China.

It has been quite a few month when US and China went to trade war. The China has pitched his 5G technology to India but India is reluctant to invest yet considering the harmful effects that it will bring.

Trump has already motivated the Companies in Silicon valley to start working on G few months back, i see by 2020 , US will be standing with his own 5G technology.