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IT Services Circle
IT Services Circle
Aug 25, 2022 · Operations

Why Mobile Network Speed Slows Down in Extreme Heat: Atmospheric Waveguide and TDD‑LTE Explained

The article explains how extreme summer heat in Hangzhou triggers a persistent subtropical high pressure that creates atmospheric waveguide conditions, causing temperature inversions and moisture anomalies that lead to super‑refraction of 5G TDD‑LTE signals, ultimately slowing mobile data speeds for users.

5GTDD LTEatmospheric waveguide
0 likes · 7 min read
Why Mobile Network Speed Slows Down in Extreme Heat: Atmospheric Waveguide and TDD‑LTE Explained
macrozheng
macrozheng
Dec 13, 2019 · Fundamentals

How China’s Number Portability Works: Behind the Scenes of Mobile Number Transfer

This article explains the technical foundations of China's number portability service, covering regulatory background, MDN and IMSI structures, call and SMS routing changes, the centralized portability database, and the impact on developers who previously relied on number‑prefix detection.

IMSIMDNcall routing
0 likes · 12 min read
How China’s Number Portability Works: Behind the Scenes of Mobile Number Transfer
Baidu Maps Tech Team
Baidu Maps Tech Team
Apr 1, 2016 · Mobile Development

How Baidu Maps Optimizes Mobile Network Performance: Real-World Practices

This article outlines Baidu Maps' mobile network optimization strategies, covering the overall architecture, common wireless issues such as DNS failures and hijacking, and practical solutions like HTTP‑DNS, custom TCP/UDP HTTP, data compression, unified domain entry, and deployment tactics that significantly improve user search latency and engagement.

Baidu MapsHTTP-DNSTCP
0 likes · 10 min read
How Baidu Maps Optimizes Mobile Network Performance: Real-World Practices