Industry poles: China launched the first star river in the world for the United Shenzhen subway.

IT House News, 5 June, 3 June, "Wi-Fi 7 Shenzhen Metro Station Joint Launch and Global Model Site Construction" took place in Shenzhen.

At the meeting, Shenzhen Metro Group, together with China Tech Ltd., released the industry-led “Wi-Fi 7 Wi-Fi Innovations” and officially launched a joint global industry pilot site. This means that Wi-Fi 7 has achieved its first land-down applications for the wireless area of the domestic orbital traffic, and also marks the evolution of orbital traffic towards a new generation of high-bandwidth, low-timed structures.

The IT House has been officially informed that the Shenzhen Metro is now operating 634.5 kilometres as the aorta of urban public transport, with an average daily passenger flow of more than 9.08 million times, and that a number of indicators, such as network density and traffic intensity, are among the highest in the country.

In the face of the operational pressure of the super-high-line network and growing expectations about the quality of travel, the Wi-Fi 7 programme, which is being released, attempts to provide a technological path from “sizing-up” to “map-up”.

Compared to the current industry-wide Wi-Fi 6 or traditional programmes, Wi-Fi 7 technology has achieved a qualitative leap in performance. The programme is designed for high-speed orbital traffic scenarios and supports the train to maintain a steady throughput of 1,000 Mbps at 160 km/h, which is equivalent to the simultaneous flow of multi-road 4K high-resolution videos in the flying train.

In the past, the easily visible interruption of the train during the switch between the different base stations was effectively mitigated, with the transition being reduced to 30 milliseconds through a five-weight soft switch technology, and with a maximum of 8 links of redundant backup to ensure that the switch process was lost and that the anti-disruption capacity in the vehicle segment was increased by more than 50 per cent. The four-layer design, from radio frequency, algorithm, group network to antenna, gives "orbit-to-grade reliability" to the system.

The Shenzhen subway and China have built an autonomous and controlled platform for ground communications, which not only guarantees efficient cross-line connections, but also provides for extended interfaces for subsequent AI smart analysis, Hongmun eco-ender synergy, etc.

Based on the high-speed real-time retrieval capacity of data generated by Wi-Fi 7, it is expected that in the past, the dimensional model, which relied mainly on after-action repairs, will shift to active early warning; in combination with the digital platform that has been built, AI ' s research and predictive maintenance of the state of equipment will be supported by more reliable data, thus further enhancing operational security. On the side of the passenger, the intelligent applications of the trams can be combined with ecological synergies to provide easier intelligent travel.

According to China, Wi-Fi 7 has a larger bandwidth, lower time delay and more stable vehicle wireless communications, which can serve as an important complement to the integrated communications system (LTE-M) for urban orbital transport vehicles and further strengthens the intellectually transformative communications base.

It is planned that the results of Wi-Fi 7-track wireless innovations will gradually be scaled up to more cities after Shenzhen has taken the lead. In the short term, priority will be given to the construction of new or retrofitted routes to the north and to the new front-line cities, and to the deployment of a large-scale orbital network to provincial capitals and regional centres; in the long term, it will also be extended to integrated traffic scenarios such as high iron, inter-city, airport, port, etc., which will facilitate the formation of a new-generation transport wireless infrastructure integrated with the Wi-Fi 7+5G, which will support future operations, such as automatic driving, road synergies, etc.

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