China’s Bohai Communications-Sensing Network Begins Operation

What changed

A new communications-sensing network began operating in central Bohai waters on October 15. Built by China’s Ministry of Transport Beihai Navigation Support Center, China National Offshore Oil Corporation and China Mobile, it combines:

• 48 offshore 5G base stations
• 8 VHF stations
• 6 AIS stations
• 4 hydrological observation stations

Integrated signal coverage is 95%, while 5G coverage exceeds 80%. Major ports, anchorages and waterways in the Bohai area now have full signal coverage.

Why it matters

This turns a difficult patch of water into a much more connected operating zone. Ships can communicate through high-speed broadband, while maritime authorities gain access to communications, vessel-identification and hydrological data across the same network.

The system is expected to benefit 300,000 vessel trips and 5 million passenger trips each year. It also provides infrastructure for maritime regulation and emergency search-and-rescue, alongside oil and gas development, fishing, offshore wind power and intelligent shipping.

The notable feature is how the network was assembled. It uses offshore oil platforms and submarine cables already present in the area, linking industrial infrastructure with public maritime services. That makes the project more than a telecoms rollout: it is a shared data and communications backbone for one of northern China’s busiest shipping regions.

Its real test will be operational. The network’s coverage is clearly defined, but its measured safety results, operating budget and governance arrangements have not yet been disclosed.