China Telecom Corporation Limited

Beihang University

Song Zhao

Yang Liu

Peng Chen

Zehui Zhao

Huawei Chen

Dengke Chen

Qi Bi

The present disclosure relates to the field of communications, and provides a network data analytics method, a network data analytics function (NWDAF) network element and a communication system. The NWDAF network element collects network data associated with an area of interest AOI, wherein the network data comprises energy-saving state information of a cell of the area of interest AOI. The network data associated with the area of interest AOI is analyzed by combining the energy-saving state information of the cell of the area of interest AOI, and the analysis result is output. The NWDAF network element can distinguish network data of the cell in the energy-saving state and the non-energy-saving state.

Network data analysis method, network data analysis functional network element and communication system

The present disclosure relates to the technical field of 5G core networks, and provides a quality of service measurement method and device, a user plane function entity, and a computer-readable storage medium. The quality of service measurement method includes: a user plane function receiving a quality of service measurement request sent by a session management function, wherein the quality of service measurement request includes a trigger condition of a quality of service measurement failure and a measurement result of the quality of service measurement failure; the user plane function determining whether or not the trigger condition of the quality of service measurement failure is satisfied: and if so, the user plane function sending, to a control plane function, the measurement result of the quality of service measurement failure.

Quality of service measurement method and device, and user plane function entity

The present invention relates to the technical field of flexible drag reduction coatings, and in particular to a method for preparing a flexible and elastic drag reduction film. The flexible and elastic drag reduction film prepared by the present invention has excellent flexibility and elasticity. The film has a groove structure on a surface, and is suitable for curved surfaces and pipe surfaces of different diameters. The film is directly used without the need for an adhesive. It is sheathed on curved structures or devices of different diameters and curvatures by virtue of its own flexibility and elasticity, reducing an error due to the film adhesion.

Preparation method and use of flexible and elastic drag reduction film

Growing community of inventors

Beijing, China

Song Zhao