The cellular technology we use continues to evolve and improve

The cellular technology we use continues to evolve and improve. For this assignment, in a 2-3-page, APA 7th Edition formatted paper, and including at least six external references: 

Provide a basic foundation of the concepts of cellular telephony, how it works, and the various generations and evolutions of cellular telephony. 

Research and address the differences between the current 4G and 5G cellular technologies and the challenges still faced in deploying the newest technologies. 

With 6G and other possible technologies on the immediate horizon, what are some of the challenges faced in the industry?