Recently, the Ministry of industry and information technology allocated 5g medium and low frequency experimental frequency to three major operators, and mobile phone users all exclaimed: is this the 5g era coming? So, what is 5g? What changes have we experienced from 1g to 5g?
What is 5G?
5g is the 'fifth generation mobile network' or 'fifth generation wireless system', and it is the 'successor' of 4G mobile network. The speed of information transmission will be 100 times faster than the 4G commercialized in 2009, reaching gigabits per second (Gbps), and a high-resolution movie can be downloaded in a few seconds.
When can I start using 5g?
Some 5g technologies have begun to be tested, such as at t and Verizon in the United States are testing 5g broadband fixed networks for families and enterprises; South Korea hopes to put 5g networks in place before the 2018 Pyeongchang Winter Olympics. Telecom operators around the world are expected to provide 5g mobile services by 2020.
How does 5g work?
Why can speed be improved?
5g may use the existing mobile spectrum or expand the spectrum by using a higher frequency segment called 'millimeter wave (MMW)' to transmit more data. However, millimeter wave transmission distance is very short, so many small base stations are needed to receive signals and transmit data.
What is the enterprise doing?
Before the final standard is finalized, some enterprises are betting on technologies that may be selected as industrial standards and competing for related patents. For example, Nokia, Ericsson and ZTE all claim that wireless communication capture technology and modulation signal technology belong to them.
What can 5g be used for?
The fast 5g network can transmit instructions to self driving, which is faster than human response speed. The communication between cars can keep a safe distance from each other, and the big traffic knot will be relieved. If it is used in telemedicine, almost synchronous video and data transmission can allow doctors to operate remotely.
What's the next step?
The first is to establish industry standards. At present, many models are under test, including how to build the network and which part of the electromagnetic wave spectrum will be used. Relevant equipment and technology companies will put forward plans for reference to industry groups, and the winning technologies and plans will become industry standards.
How high is the cost of system upgrade?
Accenture, a consultancy, estimates that upgrading the 5g system will cost $275 billion in seven years in the US. It's still too early to speculate how much the monthly rent will rise, but the average monthly mobile phone bill in the United States has risen from $51 in 2007 to $80 in 2014.