With the construction and development of mobile communication networks becoming increasingly mature, the deep optimization of wireless networks has gradually become a key focus of network optimization work for major operators. Providing more targeted network deep coverage solutions has also become the main direction for Lintratek to develop new products.
The complexity of deep network optimization lies in the diversity of coverage scenarios, which face many difficulties such asinstallation conditions, coverage area, high pressure on equipment and installation maintenance costs. All of these require network optimization equipment suppliers to provide more targeted new products and solutions that are different from traditional solutions.
Today I will share with you a signal coverage case for August 2025:
Background information of this project
The Shenzhen Metro Line 20- Airport East Line Project is the core supporting transportation facility for the expansion project of Shenzhen Airport T4 Terminal. The project is constructed by Gezhouba Group, with a total length of about 2.8 klometers and a bi-directional tunnel design. It mainly serves the transportation of airport passengers and the commuting needs of surrounding areas. As a key link between the North Airport Station and the future T4 terminal, the communication system construction of this line needs to meet three core requirements: high stability, large capacity transmission, and seamless coverage.
Customer requirements and project characteristics
1. The uniqueness of the order
This project order originated from a long-term consultation with a corporate client (Gezhouba Group), which took several months from initial contact to final signing, reflecting the complexity of the decision-making chain for large-scale infrastructure projects. Customers have extremely high requirements for the reliability and technical adaptability of communication equipment, ensuring that there are no blind spots in the signal coverage of subway tunnel construction. It is necessary to meet both communication needs and smooth data transmission.
2、The Challenge of Technical Issues
√ Tunnel environment: Electromagnetic waves attenuate quickly in enclosed spaces, making traditional base station coverage difficult;
√ Construction synchronicity: It is necessary to closely coordinate with the progress of the civil engineering project to avoid rework;
√ Anti interference design: The high-voltage power system of the subway may cause interference to communication equipment.
Solution Design and Implementation
1、Core equipment selection
Adopting fiber optic near and far end system (fiber optic repeater), long-distance low loss transmission is achieved through optical signal conversion.
This is Lintratek latest deep coverage solution, whose core advantages include:
√ High intelligence: Fully automatic adjustment of working parameters, extremely convenient installation and activation method, ready to use, maximizing cost savings in installation and activation maintenance, and suitable for different coverage scenarios.
√ High performance: High power, suitable for most deep optimization coverage scenarios, built-in fully digital processing self-excited detection module, avoiding self-excited phenomena during installation and use, and avoiding interference with donor base stations.
√ High stability: The all metal casing and good heat dissipation conditions ensure that the equipment can work stably for a long time.
√ High energy saving: The overall working condition of the machine is intelligently monitored and controlled by the CPU throughout the entire process. When no one is using the mobile network, it automatically enters the standby mute function. When using the mobile network, it immediately enters the working state to save energy.
2、Solution Configuration
The overall plan adopts two sets of one to three fiber optic near and far end equipment, and currently two sets of one to one are installed for the use of the preliminary staff. Install the second and third remote sets as the subway construction progresses until the project is completed.
After fiber optic deployment, host and remote unit debugging, signal strength tuning, and multi operator compatibility testing, the first phase of the subway tunnel can now be used for mobile internet calls without any lag in equipment transmission, making it very smooth.
【Customer Review】
Summarize
This scheme can be applied to subway tunnel projects in other cities, especially suitable for communication coverage throughout the entire construction period of new lines.
Lintratek Technology’s products are distributed in 155 countries and regions worldwide, serving high-tech enterprises with over one million users. In the field of mobile communication, we insist on actively innovating around customer needs and helping customers solve their communication signal needs!
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Post time: Aug-25-2025