Hotspot high capacity refers to providing users with 1Gbps user experience rate and 10Gbps peak rate in densely populated areas. In traffic hotspots, traffic density of 10-100Tbps per square kilometer can be achieved. That is, in a highly densely populated area, no longer have to worry about because too many 4G users at the same time using the network and lead to network speed decline or network congestion.

Low-power large-scale connectivity can provide over 100 billion network connectivity support capacity to meet the 1 million / km2 connection number density requirements. This function is mainly for the wisdom of the city, environmental monitoring, intelligent agriculture, forest fire and other sensing and data collection as the goal of the application scenarios.

Low latency, high reliability refers to providing users with millisecond end-to-end latency and close to 100% operational reliability assurance. This is mainly for automatic driving, industrial 4.0 and other industries of special application needs.

It can be seen that, relative to 4G communications, 5G communication can provide a wider coverage of the signal, and the Internet faster, faster flow density, but also will penetrate into the Internet of things. In other words, everything is interconnected.

China has mastered what 5G key technology

As the 5G communication standard is still in the process of development, many technologies are also developing, and for some technology will become the key technology of 5G communication is also controversial, this is a brief introduction to the industry more optimistic about some of the key technologies.

First is multiple access. Multi-access technology refers to the solution of multiple users at the same time and base station communication problems, how to share the resources of the technology, in the 5G standard battle, multiple access is a very critical point of struggle, now popular view is NOMA, but there are scholars Hold a different view.

Followed by coding. Encoding has long code and short code. In the last year, the Chinese manufacturers (Huawei) main push Polar and the European main push Turbo2.0, the United States launched the main push of the LDPC eMBB scene long code and short code program contention. US companies have acquired the long and short code channels of the eMBB scene (used to enhance the ability of data to protect against interference in the channel). Chinese companies have access to eMBB short frames of control channels (mainly for transmission instruction operations Subordinate network equipment). Although the eMBB scene coding technology in the game, the main push of China's Polar inferior to the US main push of the LDPC a chip, but Amotech compared to no gains Turbo2.0 or a lot stronger.

Finally, multi-antenna technology. Multi-antenna is a technology to increase capacity, and now the industry is more optimistic about the MIMO technology, large-scale MIMO technology can not only increase the spectrum of resources in the case of lower transmission power, reduce the cell and inter-cell interference, but also to achieve the spectrum Efficiency and power efficiency on the basis of 4G to enhance an order of magnitude. In addition, RF modulation and demodulation technology, soft frequency reuse technology is also expected to become the key technology of 5G communication, especially soft frequency reuse heavyweight patent in the hands of Huawei.

Overall, China in a number of 5G key technology to achieve an important breakthrough, some technology has entered the test validation stage. Recently, the first version of Spreadtrum using FPGA prototype Pilot V1 has been completed with Huawei's docking experiment, the second version of the prototype program bandwidth will be increased to 100M, and in the second half of 2017 with the system vendors docking.