Why Is Your Phone Signal Sometimes Strong, Sometimes Weak?

When we complain about poor signal in shopping malls or subways, there's actually a professional team working behind the scenes, using precision instruments to conduct "health checks" on the network.

Key Technical Methods:

• Drive Test Systems: Vehicle-mounted equipment collects over 20 metrics in real-time, including signal strength and handover success rates.

• Big Data Analysis: AI algorithms automatically identify weak coverage areas and interference zones.

• Indoor-Outdoor Coordination: Use "frequency scanners" to measure signal attenuation caused by building materials.

Typical Case:

During 5G optimization in a city subway system, testing revealed that signal reflections in tunnels were causing speed reductions. By adjusting antenna tilt angles, network speeds were increased by 300%.