Overview of Huawei's Wireless Backhaul Solution:

Huawei's wireless backhaul solution for rail transportation ensures reliable communication for train control systems, passenger services, and other applications.

Analysis of Each Statement:

Option A:The handover delay in Huawei's solution can indeed be as low as30 ms, ensuring seamless connectivity during train movement.

Option B:The solution supportshighly reliable active-active links, providing redundancy and fault tolerance.

Option C:The solution is designed to carry critical systems liketrain control signals, ensuring safety and efficiency.

Option D:This is incorrect because Huawei's solution supports backhaul even at speeds of160 km/h or higher, making it suitable for high-speed rail networks.

Conclusion:The correct statements are Options A, B, and C.