China Unicom

China Unicom & Huawei deploy 2.1 GHz 8T8R 5G network for high-speed railway in China

Posted on January 17, 2024 by Alan Weissberger

China Unicom Jilin, the local affiliate of China Unicom in the Jilin province, has completed the deployment of a 2.1 GHz 8T8R 5G network for a segment of the national Harbin-Dalian high-speed railway with 5G network equipment from Huawei.

Tests show that 8T8R AAUs increase the coverage area by 44% compared with 4T4R, and 5G user experience improves by 5.2 times compared with 4G. The train passengers can heartily access the network for entertainment such as HD video, live streaming, and New Calling as well as for work on-the-move such as remote video conferencing.

In 2023, China Unicom embarked on a 5G coverage project along China’s sixteen trunk high-speed railways. Its affiliate in Jilin province contributed to its share of constructing the province’s premium 5G network for high-speed railways within the provincial borders. At first, this network construction project was daunted by four serious challenges. To begin with, the distance between sites is large. What’s worse, the penetration loss was greater with high-speed railways than common railways. Additionally, high-speed mobility increased the Doppler shift, a direct cause of performance deterioration. Lastly, user experience was poor due to short camping time caused by frequent handovers (every 3–4 seconds) on trains running at a high speed of 300 km/hr.

To address these challenges, in this project, China Unicom Jilin deployed the 2.1 GHz 8T8R AAU, and activated the High-speed Railway Excellent Experience feature and Cell Combination feature.

The 2.1 GHz 8T8R AAU solution integrates with technologies like multi-antenna, integrated high-gain array, intelligent beamforming, and precise and fast beam sweeping. Compared with 4T4R, it improves coverage by 7.5 dB, user experience by an impressive 55%, and capacity by 85%. This solution solves the problem of poor coverage caused by large distances and large insertion loss on high-speed railways. It also uses the same antenna as the legacy 4G 1.8 GHz network, simplifying site deployment and reducing tower rental by 10%. This series of solutions with Huawei FDD beamforming technology took home the GSMA GLOMO award for “Best Mobile Technology Breakthrough” and was listed in the “Guangdong Province Energy Saving Technology and Equipment (Product) Recommendation Catalogue”, issued by the Guangdong Energy Bureau in July 2023, for its excellent performance in energy saving.

After the High-Speed Railway Excellent Experience feature is enabled, the 5G base station proactively adjusts the signal frequency to offset the negative impact caused by frequency offset. This solves the Doppler shift problem in high-speed railway continuous coverage scenarios. After Cell Combination feature is enabled, the number of inter-cell handovers can be reduced in a cell combination network, which solves the problems of fast handovers and short camping time on high-speed railways. Test results show that after this feature is enabled, the access success rate increases to 99.4% and the call drop rate decreases by 57%. This overcomes the difficulties of difficult network access in ultra-high-speed scenarios.

This commercial deployment of the 2.1 GHz 8T8R AAU solution will greatly facilitate the operator’s future plans for similar 5G rollouts. China Unicom Jilin will continue to explore 5G network deployments in different scenarios as well as innovative applications of 2.1 GHz 8T8R in order to build differentiated 5G advantages based on service requirements in various 5G scenarios.

China’s telecom industry business revenue at $218B or +6.9% YoY

Posted on December 23, 2023 by Alan Weissberger

China’s Ministry of Industry and Information Technology (MIIT) said that in the first eleven months of 2023, the telecommunication industry’s collective business revenue soared to 1.55 trillion yuan, approximately 218 billion U.S. dollars, marking a 6.9% year-on-year increase.

Emerging sectors such as big data, cloud computing, and the Internet of Things (IoT) have shown significant growth. China’s three state owned network providers, China Telecom, China Mobile, and China Unicom have leveraged these technologies to catalyze a 20.1 percent surge in revenue from these areas, amounting to 332.6 billion yuan.

Cloud computing and big data have experienced explosive growth. Revenue from cloud computing surging by 39.7 percent and big data by 43.3 percent compared to the previous year. These figures underscore the central role of data-driven technologies in powering China’s telecom industry forward.

Broadband internet services continue to be a strong revenue stream for the three telecom giants, generating 240.4 billion yuan from January to November, which is an 8.5 percent increase year on year. This growth reflects the increasing demand for high-speed internet across China, as the country continues to embrace digital transformation in all sectors.

In conclusion, China’s telecommunication industry’s growth narrative in 2023 is not just a story of numbers but a chronicle of technological evolution and its integration into the fabric of society. With emerging sectors leading the charge, the industry’s upward trajectory seems poised to continue, as these technologies become increasingly embedded in the everyday lives of businesses and consumers alike.

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Separately, Mordor Intelligence forecasts the China Telecom Market size is expected to grow from USD 478.92 billion in 2023 to USD 547.43 billion by 2028, at a CAGR of 2.71% during the forecast period (2023-2028).