XU Bingyu, LI Xiayu. In-depth analysis of the satellite constellation Starlink[J]. Information and Communications Technology and Policy, 2021, 47(9): 16-20.
We Are Social, Hootsuite. Digital 2021: the latest insights into the ‘state of digital’ [R / OL] . [2021-08-08]. https:/ / wearesocial. com / uk / blog / 2021/ 01/ digital-2021-the-latest-insights-into-the-state-of-digital.
McKinsey Global Institute. Connected world: an evolution in connectivity beyond the 5G revolution[R / OL]. [2021-08-08]. https:/ / www. mckinsey. com/ industries/ technologymedia-and-telecommunications / our-insights / connectedworld-an-evolution-in-connectivity-beyond-the-5g-revolution.
[6]
Leichtman Research Group. 86% of U. S. households get an internet service at home [ R / OL ] . [2021-08-08] . https:/ / www. leichtmanresearch. com / wp-content / uploads /2020/ 12/ LRG-Press-Release-12-28-2020. pdf.