The development of Millimeter wave in the future
Millimeter wave is an indispensable part of 5G, helping 5G release its full potential, and the global 5G millimeter wave industry is poised to develop. As the best partner of 5G, how will millimeter wave develop in the future?
According to the 3GPP agreement, 5G antennas mainly use two frequency bands: FR1 frequency band and FR2 frequency band. The frequency range of the FR1 frequency band is 450MHz~6GHz, also known as the Sub-6GHz frequency band; the frequency range of the FR2 frequency band is 24.25GHz~52.6GHz, which is usually called millimeter wave. If the low-frequency band is the basic coverage network of 5G, then millimeter wave is an important hotspot filling technology for 5G. Millimeter wave will complement Sub-6GHz technology to unleash the full potential of 5G.
Short coverage distance? It is a disadvantage and an advantage!
Compared with Sub-6GHz, millimeter wave has four major advantages:
1, millimeter wave spectrum resources are abundant, and user experience rate is higher;
2, millimeter wave communication delay is smaller in technical implementation;
3, millimeter wave antenna is small and equipment is light . Quantification is easy to implement and deployment is more convenient;
4. Due to the mechanism of point-to-point communication of millimeter wave, the positioning accuracy is higher than that of Sub-6GHz.
Millimeter wave propagation is mainly based on line-of-sight propagation and non-line-of-sight propagation. However, the millimeter wave propagation loss is greater and it is easy to be blocked, which is an advantage and a disadvantage. The advantage is that it is easy to form isolation in the application, which is convenient for coverage control, so as to realize different configurations between coverage islands. For example, the coverage camera monitoring area of the factory park can be configured as uplink priority, while the software download in the factory building can be configured as downlink priority. The disadvantage is that when serving 2C users, due to the poor propagation penetration effect, the base station coverage area is small. To achieve continuous coverage close to Sub-6GHz, more stations need to be deployed, so mmWave is only suitable for hotspot areas and Sub-6GHz. -6GHz combined network use.
Millimeter wave business prospects are bright!
Millimeter wave technology has rich spectrum, great potential, and broad application prospects. However, because it is currently in the early stage of the 5G industry, there are few applications and the market space is unclear. However, it is expected that in the middle and late stages of 5G, after the Sub-6GHz frequency band is fully applied, millimeter wave will be an inevitable choice. It is expected that millimeter waves will enhance the ability of 5G to serve the society. It can greatly expand the service capability range of 5G systems to meet the growing demand for data traffic, and activate innovation for vertical industries, thereby promoting the digital transformation of the whole society. .
According to GSMA data, 5G millimeter wave, as one of the core enabling technologies in high-speed access, industrial automation , medical health, intelligent transportation, virtual reality, etc., is expected to contribute US$565 billion to global GDP by 2035, Accounting for 25% of the total contribution of 5G, before 2034, the economic benefits brought by the use of 5G millimeter wave frequency band in China will reach about 104 billion US dollars.
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