If you don't understand these two issues, 5G may disappoint you

The commercialization of 5G is getting closer and closer, and we are beginning to expect 5G to change our lives. But like any other high technology, 5G has its own limitations. In other words, 5G is not everything. In some aspects, the 5G experience is not perfect due to technical limitations.

There is a large gap between the theoretical development speed of 4G and the practical speed, mainly due to the limitation of the design capacity of the network communication information system, when the cell phone carries on the more users, the slower the speed of 4G networking.

5G adopts beam management technology, which improves the accuracy of beam alignment and ensures the quality of wireless communication connections, which means that people don't slow down as easily as they did with 4G.

But just because you don't lose speed easily doesn't mean you don't lose speed.

According to the 3GPP 38.101 protocol,what is a distinguishing feature of 5g mmwave 5G NR uses two main frequency bands: FR1 and FR2. The FR1 band has a frequency range of 450 MHz-6 GHz and is also known as the sub-6 GHz band, while the FR2 band has a frequency range of 24.25 GHz-52.6 GHz and is often referred to as millimeter waves.

The high speed of 5G is based on millimeter waves. In the millimeter wave band, the maximum bandwidth that can be used by mobile applications is 400MHz, and the data rate is as high as 10Gbps or more, while the highest frequency carrier in the 4G-LTE band is around 2GHz, and the available spectral bandwidth is only 100MHz, so the speed of 4G is far inferior to that of 5G.

It can be said that 5G has become a millimeter wave, but also a millimeter wave. Millimeter wave is characterized by data processing developed a very tricky,qcm6490 the most significant drawback is the relatively small range of propagation studies. To achieve can be effective signal coverage, millimeter wave cellular transmission tower spacing can not have no more than 150 meters, so that operators must simultaneously establish a large number of millimeter wave transmission towers in China, in the base station construction needs to study the investment as well as a large number of social funds.

Operators have limited funds and a correspondingly limited number of millimeter-wave base stations to build, so it is unlikely that large-scale millimeter-wave base stations will be built in sparsely populated suburban and rural areas. As cities are densely populated neighborhoods, operators will build a large number of millimeter wave base stations.

The difference in the construction of millimeter wave base stations is the difference in the speed of 5G networking. In the city, you can feel that 5G is dozens of times faster than 4G, but in rural or suburban areas, the speed increase is limited or even insignificant. This is an issue that many people don't know about 5G.

Another issue is the prioritization of networking. the most revolutionary application in China in the 5G era is the Internet of Things (IoT). 5G network technology will not only connect an average student user's cell phone, but will also carry out connectivity to industrial production machine learning devices, cars, and even agricultural machinery and equipment. According to the 5G protocol, different data and information transmission will have a lot of different priorities, IoT system devices such as self-driving cars and your cell phone companies are requesting data as a connection, the phone will be behind the car, which will also reduce the speed of the phone's networking, but the extent of the impact may we will not be too obvious.

millimeter wave cell phone carries

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