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On August 4, China Tower and Huawei Technologies Co., Ltd. officially unveiled a new tunnel waveguide product: TunnelStar at the China Tower Industrial Park. Tailored for high-value tunnel scenarios, the innovative solution features compact size, lower costs and superior user experience, injecting new momentum into network quality improvement and brand value enhancement for telecom operators.
Senior executives from China Tower and Huawei Technologies Co., Ltd. attended the launch ceremony.
According to the officials present, China’s rail transit tunnel scale has maintained steady growth, with the national operational subway mileage exceeding 10,000 kilometers and the mileage of operational railway tunnels surpassing 25,000 kilometers. Tunnel scenarios have long been plagued by industry pain points, including limited installation space, complex on-site construction conditions and difficult renovation coordination. Meanwhile, as mobile communication networks accelerate the iteration toward 5G-A, communication frequency bands and spectrum bandwidth continue to expand. Driven by booming applications such as AI and live streaming, user demand for uplink services keeps rising, highlighting the weaknesses of uplink coverage and putting forward more stringent technical requirements for tunnel indoor distribution and signal coverage systems.
Against this backdrop, China Tower and Huawei have carried out in-depth technical cooperation. Combining the propagation characteristics of radio waves in tunnels, the two parties have jointly developed the TunnelStar, breaking through the technical bottlenecks restricting tunnel network coverage. Equipped with a specially designed excitation source to reshape electromagnetic field distribution, the product enables more uniform wireless signal coverage in tunnels and maximizes overall coverage performance.
Compared with traditional antenna solutions, the innovative TunnelStar boosts edge coverage level by more than 10dB and improves user experience speed by over 40%. It supports a 9dB gain amplification for uplink links, delivering a 20% increase in uplink speed to meet the demand for high-capacity uplink data services. In addition, the product supports low-cost evolution toward 6G, enabling smooth transition for new frequency band applications. As a full-band and full-bandwidth solution, it empowers China Tower to leverage its unified planning and construction advantages, helping telecom operators solve key industry challenges including high-capacity uplink and high-frequency network evolution in tunnels, difficult leaky cable construction and poor antenna coverage effects.
The TunnelStar solution has completed pilot tests for 3.5G and 4.9G frequency bands in Wuhan and Guangzhou respectively. The test results show significant improvements in coverage performance and deployment efficiency, which are highly consistent with the design targets.
TunnelStar blazes a new trail for upgrading tunnel network experience. It effectively breaks the coverage bottlenecks in extreme tunnel scenarios, greatly improving user experience and satisfaction, and setting a benchmark for ultimate mobile network coverage.
Looking ahead, the two sides will further integrate China Tower’s advantages in integrated overall planning, co-construction and project implementation with Huawei’s cutting-edge communication R&D capabilities. Both parties will continue to iterate and upgrade series of in-depth tunnel coverage technologies and solutions, comprehensively optimize the digital travel experience for the public, and empower a better digital life for all.
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