5G, from the perspective of technological development, is not only a revolution and innovation on the basis of 4G, but also a natural evolution and extension of 4G. On the other hand, from the perspective of network deployment, the early deployment of 5G may not be continuous and network-wide, and it needs to cooperate with the 4G network with wider coverage and more mature. Let's take a look at the related content with the network communication Xiaobian.
According to the GSMA prediction (Figure 1), from a global perspective, 4G will have a high-speed development period for many years. From the perspective of the proportion of bearer network traffic, even its importance will continue to exceed 5G for a period of time. This development trend is closely related to the maturity of 4G technology and industry chain, the technological evolution potential of 4G itself, the great enrichment of terminals and the imbalance of current world network development. In this context, we will integrate 4G and 5G, and use the existing 4G network foundation to help the network achieve the best evolution path while optimizing the investment structure, so as to maintain the advantage in the competition, for the operators. Particularly important. All of this puts forward realistic and urgent requirements for the technical solutions of 4G and 5G integration.
Figure 1 Wireless network development curve prediction
First of all, the evolution of 4G networks needs to combine the results of 5G development as much as possible, and apply some technologies of 5G to 4G networks in advance, so that ordinary users can get better network services in advance, instead of splitting 4G and 5G into completely different technologies. , missed the opportunity of the evolution of network evolution. ZTE's Massive MIMO series products are a typical solution based on this idea. The 5G core technology is applied to the current 4G network in advance, and the spectrum can be greatly improved without changing the core network and without replacing the existing 4G terminal. effectiveness. At the same time, the deployment and upgrade of the existing 4G network needs to prepare for the 5G evolution, achieve smooth evolution, and protect existing investments. ZTE's 4G series of new products, including RRU, AAU and BBU, support smooth evolution to 5G. Currently, it can be deployed directly on 4G networks to provide 4G services. When the 5G standard freezes and operators start deploying 5G, they can 5G support is easily achieved through software upgrades.
Figure 2 ZTE's new generation 4G/5G dual-mode RRU: ZXRAN R8894E (left) and ZXRAN R8998E (right)
The integration of 4G and 5G naturally needs to be combined with network evolution, so it must have its corresponding phase.
In the first phase, 4G networks, combined with the latest LTE-A, LTE-A Pro and some 5G technologies, continue to grow in the direction of larger capacity, lower latency, more connectivity and more flexible network architecture. Evolution. ZTE's Pre5G is a comprehensive solution that integrates new technologies such as Massive MIMO, LAA, NB-IoT/eMTC and innovative solutions. It has been deployed and commercialized in more than 110 networks in more than 60 countries around the world.
In the second phase, after the release of the first edition of the 5G standard in 2018, some operators of some countries in the 5G network deployment began to deploy gradually, and 4G and 5G networks began to merge. In a period of time, 4G and 5G networks will coexist, 4G and 5G terminals will coexist, and the proportion of 4G terminals will be significantly higher than 5G. At this stage, 4G/5G converged product solutions are needed to create a high quality 4G/5G network. From the perspective of RRU, ZTE's Pre5G Massive MIMO is an excellent solution to support seamless upgrade to the same frequency to support 5G. It supports step-by-step re-cultivation to 5G in the applicable frequency band. In the 4G era, non-Massive MIMO RRUs also need to be able to support 5G at a minimum cost. ZTE's new RRU series products can support 5G only through software upgrades. For example, R8894E, R8998E and other new products already have 4G and 5G support. ability. Achieving easy evolution towards 5G is the most cost-effective and highly flexible solution for deploying the latest 5G network at this stage. It is also the embodiment of ZTE's continued investment in this field. From a BBU perspective, the BBU needs to have the ability to support both 4G and 5G, as well as the ability to flexibly configure and collaborate. ZTE's next-generation BBU is a virtualized BBU based on the IT platform. It supports both 4G and 5G, enabling dual connectivity in 4G and 5G converged networking. It also has comprehensive advantages such as high capacity, small size, and flexible deployment. It is an important guarantee for the evolution of 4G to 5G. Based on the V9200, the new BBU is based on the IT platform. It can be flexibly configured, flexibly configured, and supports 4G and 5G at the same time. It also has large capacity and can easily meet 4G, 5G deployment and converged networking deployment in multiple scenarios. Demand.
The convergence of 4G and 5G can promote the smooth evolution of the network. ZTE's 4G and 5G convergence solutions are comprehensive and comprehensive solutions. Together with ZTE's long-term and efficient deployment and delivery capabilities, and the ability of subsequent evolution, it will certainly help the operation. In the era of 5G, the business has taken the lead and achieved greater success.
The above is about the evolution of the 4G/5G convergence promotion network evolution in network communication. If you want to know more information, please pay attention to eeworld, eeworld electronic engineering will provide you with more complete, more detailed and updated information. .
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