Telefonaktiebolaget Lm Ericsson (publ)

Other

Lirong Sun

Xiao Li

Wei Gu

Lei Guo

Di Liu

Qi Xia

Yun Sun

Xiaojuan Shi

Xinhua Yu

Pingbao Chen

Xiping Hua

A wind power generation device, comprising a base (), a wind concentrating tower (), a vertical generator (), a vertical spiral turbine (), a turbine air inlet duct (), a trumpet-shaped wind pushing duct () and an umbrella-shaped wind drawing duct (). The wind concentrating tower concentrates the wind, the trumpet-shaped wind pushing duct pushes the wind, and the umbrella-shaped wind drawing duct draws the wind to form an artificial tornado, generate a low air pressure in the center, and generate a great drawing and pushing force to the turbine, thus driving the vertical spiral turbine to drive the vertical generator to generate power. The wind power generation device achieves wind power generation of large installed capacity.

Wind power generation device

The present invention relates to a method for improving IP fragmentation and transmission of user payload between a User Equipment, UE (), and a Peer Node, PN (). The payload is transmitted through a transmission path enabled by at least a first () and a second () established tunnel, said tunnels connecting a first (), () and a second () node in a Packet Core Network, PCN. The method comprises the steps of: The first node () fragments () at least one received payload packet () into fragments () on the basis of a minimum Maximum Transmission Unit, MTU, for an upper IP layer of the transmission path. The first node () encapsulates () said fragments at the entry of the first tunnel (). What particularly characterizes the method is that it further comprises a step where the first node () determines () the MTU for the upper IP layer of the transmission path on the basis of an MTU of a lower IP layer of the transmission path and on the basis of the size of at least one additional tunnel header for the encapsulated fragments ().

IP fragmentation in GTP tunnel

For improved IP fragmentation and transmission, user payload is transmitted through a transmission path enabled by at least a first established tunnel () and a second () established tunnel. The tunnels connect a first node () and a second () node in a Packet Core Network (PCN). A method comprises the first node fragmenting () at least one received payload packet () into fragments () on the basis of a minimum Maximum Transmission Unit (MTU) for an upper IP layer of the transmission path; encapsulating () the fragments at the entry of the first tunnel, and, determining () the MTU for the upper IP layer of the transmission path on the basis of an MTU of a lower IP layer of the transmission path and on the basis of the size of at least one additional tunnel header for the encapsulated fragments ().

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Shanghai, China

Lirong Sun