Huawei Technologies Co., Limited

Nanjing University of Aeronautics and Astronautics

Xiaomin Chen

Zhipeng Lin

Qihui Wu

Shi Chen

Qiuming Zhu

Kai Mao

Weizhi Zhong

Yanheng Qiu

Boyu Hua

Fuqiao Duan

Xuchao Ye

According to a surveying and mapping instrument and method for a wide-area spatial channel map through multi-unmanned aerial vehicle (UAV) cooperation, a measurement signal emission unit generates and emits a measurement signal, a measurement signal multi-UAV cooperative receiving unit receives the measurement signal transmitted through a wireless channel, extracts an effective multipath component from the measurement signal, and frames the effective multipath component and corresponding time and location information for storage, and transmits stored channel data to a channel data fusion processing unit offline, and the channel data fusion processing unit fuses the channel data in terms of space, time, and frequency dimensions, and completes missing channel data to construct a complete wide-area spatial channel map.

Apparatus and method for measuring and drawing wide-area spatial channel map through multi-unmanned aerial vehicle (UAV) cooperation

This application discloses a fault protection method, including: A first node determines that a first cross-domain node is faulty. The first node is a head node of a segment routing best effort SR-BE service tunnel, the SR-BE tunnel is a cross-domain tunnel that passes through a first IGP domain and a second IGP domain, the SR-BE tunnel passes through the first cross-domain node, and the first cross-domain node is a node that crosses the first IGP domain and the second IGP domain. The first node switches a service transmission path from the SR-BE tunnel to a backup tunnel. The backup tunnel does not pass through the first cross-domain node, and the backup tunnel is a tunnel with a strict explicit path.

Fault protection method, node, and storage medium

Growing community of inventors

Nanjing, China

Xiaomin Chen