MediaTek today announced the launch of its first mobile platform that supports 5G millimeter wave - Dimensity 1050. But other than that, it's just a low-end version of the existing Dimensity 1100 SoC.
To put it simply, the successor of the Dimensity 900 series is 1050, the successor of the Dimensity 800 series is 930, and the successor of the Dimensity 1200 is 8100.
Dimensity 1050 adopts TSMC's 6nm process, equipped with an eight-core CPU, including two Arm Cortex-A78 cores with a main frequency of 2.5GHz. Connect and switch seamlessly. It is reported that terminal products equipped with Dimensity 1050 will be unveiled in the third quarter.
The Dimensity 1050 also supports 5G dual-card dual-standby (5G SA+5G SA) and dual-card VoNR calls, is equipped with an AI processor APU 550, and supports Wi-Fi 6E 2x2 MIMO.
In addition, MediaTek also released two mobile platforms, including the Dimensity 930 5G mobile platform supporting full-band Sub-6GHz 5G network and the Helio G99 4G mobile platform supporting 4G LTE network, enriching the mobile platform product portfolio.
Dimensity 930 5G mobile platform supports full-band Sub-6GHz 5G network, as well as 2CC dual carrier aggregation and FDD+TDD hybrid duplex, supports MiraVision mobile display technology, can support FHD+ resolution 120Hz refresh rate display and HDR10+ video standard, It is also equipped with HyperEngine 3.0 Lite game engine integrated intelligent network management technology.
Terminals using the Dimensity 930 5G mobile platform are expected to be available in the second quarter of 2022, and terminals using the Dimensity 1050 5G mobile platform and Helio G99 4G mobile platform are expected to be available in the third quarter of 2022.
The development of 5G technology, we can experience more mature wireless communication technology, and the global 5G solution can be roughly divided into millimeter wave and Sub-6GHz. The two schemes have their own advantages and disadvantages, and the choice of different 5G schemes is the choice of each country based on its own actual situation.
Compared with Sub-6Ghz, millimeter wave will release greater potential, and my country is also actively deploying research and development applications in this field. For the construction of 5G network, whether it is Sub-6GHz or millimeter wave, there is no difference between advantages and disadvantages, but the order of development is different due to practical factors.
Taking my country as an example, our 2G working frequency bands are mainly 900MHz and 1.8GHz, 3G and 4G working frequency bands are mainly 1.9GHz, 2.1GHz and 2.6GHz, and 5G is mainly Sub-6Ghz frequency band, mainly because we need to cover The 5G network has a wider range, and it is more economical to choose this solution in the early stage (NSA is also for this reason), but in the future, the millimeter wave solution will inevitably be used in densely populated areas. It is not impossible to have both, no There must be a dispute over this issue.
Popular science: Millimeter waves refer to electromagnetic waves with wavelengths between 1 and 10 mm. Due to the short wavelength, the corresponding frequency of millimeter wave is 30GHz-300GHz. Sub-6GHz refers to electromagnetic waves with frequencies lower than 6GHz.
According to the standards of the international standard organization 3GPP, the 5G frequency band is divided into two ranges, FR1 and FR2. The frequency range of the FR1 frequency band is 450MHz-6GHz, and the frequency range of the FR2 frequency band is 24.25GHz-52.6GHz. The frequencies of Sub-6GHz and mmWave fall into these two frequency bands.
Subject to the physical characteristics of radio waves, the short wavelength and narrow beam characteristics of millimeter waves enhance signal resolution, transmission security, and transmission speed, as well as larger storage capacity, making it easier to solve the problem of user Internet congestion. However, the coverage area of this technology is relatively small, and it is more suitable for applications in densely populated scenarios such as stations, airports, and stadiums. Although sub-6GHz is inferior to millimeter wave in terms of propagation speed and bandwidth capacity, its biggest feature is that the signal penetration is strong, the propagation distance is longer than that of millimeter wave, and it is easier to solve the problem of signal coverage in a large area.
In contrast, the coverage of 5G networks operated by the Sub-6GHz solution is wider, and the actual measurement shows that the Sub-6GHz solution is more than 5 times the coverage of the 5G network operated by the millimeter wave solution.
In addition, the characteristics of short wavelengths make the penetration of millimeter waves far from ideal. According to previous studies, 5G mobile phones using millimeter wave technology can be blocked by almost anything, such as phone booths, glass, trees, rain, etc. As long as there is a block between the base station and the mobile phone, the 5G network may fall back to the 4G state.
0 Comments