Shulou(Shulou.com)11/24 Report--

CTOnews.com, July 5, ZTE officially announced that the world's first "5G car-to-ground system" coverage scheme has been successfully commercialized on Shanghai Metro Line 4, realizing that the peak speed of Flying Metro compartments has exceeded 2.1Gbps (262.5MB/s), with an average speed of 1.7 Gbps, claiming that "all passengers will no longer stutter when watching HD videos at the same time".

CTOnews.com learned from ZTE official account that the plan uses the second-level minimalist BBU+pRRU architecture pioneered by ZTE to build a complete 5G room subsystem directly inside the subway compartment; at the same time, making use of the characteristics of large 5G bandwidth and high speed, 5G AAU is installed in the tunnel and CPE is installed on the front and rear of the subway vehicle to achieve "high-speed return" of network data, and the whole vehicle can reach downlink 15Gbps and uplink 2Gbps.

ZTE Corporation summarizes the value of the "four major innovations" of 5G vehicle-ground system:

The improvement of network performance leads to a jump in user experience: the measured peak speed 2.1Gpbs and the average speed 1.7Gbps in the compartment of Line 4, compared with the average 600Mbps rate of the traditional leaky cable coverage scheme, the performance is improved by 280% +

The construction period of the tunnel network has been greatly reduced: there is no need to lay leaked cables, and the difficulty of subway construction has been greatly reduced. Taking Line 4 as an example, the construction period has been reduced from 1 year to 6 months, and the construction period has been shortened by 50%.

Effectively reduce investment and increase income ratio: "5G vehicle-to-ground system" large bandwidth return, pipeline co-construction and sharing, compared with the traditional coverage method, the investment can be reduced by 20%. At the same time, it is estimated that 3.7 million kilowatt-hours of electricity can be saved in a year, which is equivalent to 455 tons of carbon emissions.

Take into account ToC and ToB to achieve dual drive: while ensuring the ultimate business experience of 5G users, it also opens up win-win cooperation with the urban rail transit industry, promotes the integration of similar scenes and other industries and the communications industry, and helps the digital transformation of the city.

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