Ключевые слова: 1g, 1st, 2g, 3g, 4g, 5 g, 5g, 5th generation mobile communication system, chapter 4, chapter 5, communication, connection, face, gear, gear teeth, generation, head wash, highcapacity, hispeed, internet, low delay, many terminals, move, no 2, no 3, phone, rotate, smartphone, system, technology, wireless, wireless technology,