Do you know 5G NR?

alan000345

Do you know 5G NR? [Copy link]

Do you know about 5G NR? If you know, please share your experience here. If you don’t, please read what I know.

5G NR is rooted in 4G LTE (Long Term Evolution) and Wi-Fi standards and is a new RF interface and RF access network. ("NR" stands for "New Radio", which is translated into Chinese as "new air interface" or "new radio frequency".) 5G NR will become a key enabling technology for 5G communication systems. 5G NR uses the best current technologies and means to meet the 5G requirements put forward by various standardization organizations.

Let’s take a look at the backbone technologies of 5G. They are mainly as follows:

• Spectrum Technology

• Dynamic spectrum sharing technology

• Expanded Orthogonal Frequency Division Multiplexing (OFDM), a method of encoding more digital data onto multiple carrier frequencies

• Multiple-input, multiple-output (MIMO), which involves using multiple antennas simultaneously to increase data speeds and reduce errors

• Beamforming technology combines RF signals from multiple antennas into one strong signal directed toward a specific device or receiver

• Small cell technology or network densification technology places multiple cell sites close together to increase available capacity

Here I will only share with you a part of the content of frequency division multiplexing (OFDM) . This is my favorite, flexible carrier, and wide application range. If you want to know more technical knowledge, you can click " Popular Science丨In-depth understanding of 5G NR " to learn by yourself. Finally, let's take a look at the subcarrier spacing scheme provided by this 5G NR.

In terms of flexibility, the subcarrier spacing scheme provided by 5G NR also exceeds the fixed 15 kHz subcarrier spacing provided by LTE. The subcarrier spacing provided by 5G NR includes FR2, with a maximum spacing of 240 kHz. Flexible carrier spacing can be used to properly support the diversified frequency bands, spectrum types and deployment modes required by 5G NR.

MartinFowler

The article is great. 5G is really hot right now. Especially since 5G is China's own intellectual property, it will definitely have great development in the future.

alan000345

MartinFowler posted on 2020-6-11 10:38 This is a great article. 5G is really hot right now. Especially since 5G is China's own intellectual property, it will definitely have great development in the future

yes.

btty038

New technology breakthrough

ayay33

Many new 5G technologies are just starting out and are still in the exploratory stage.