China: massive antenna & 5G university network & ionosphere experiment

Question: if the massive antenna & the 5G uni network are both in Huazhong, what is the connection between the two??
A first 5G wireless network tested on a university campus has been set up at Huazhong University of Science and Technology (HUST)
(Orig. French – see translation attached
China has built a military radio antenna on a site 21 times the size of Paris
(Orig. French – see translation attached
… The Chinese authorities have kept secret the precise location of the 2250 km2 area where the antenna is located, but some sources estimate that it would be in the Huazhong region, where 230 million people live.
See also:
China Builds Experimental Antenna Five Times the Size of New York City in Secret Location
China and Russia Have Modified the Atmosphere Above Europe to Test Possible Military Application, Scientists Say
The first joint experimental results between SURA and CSES
doi: 10.26464/epp2018051
In June 2018, for the first time, the SURA heating facility in Russia , together with the in-orbit China Seismo-Electromagnetic Satellite (CSES), carried out a series of experiments in emitting high frequency (HF) O-mode radio waves to disturb the ionosphere.