公开(公告)号：US20200092213A1

公开(公告)日：2020-03-19

申请号：US16688601

申请日：2019-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dimitrios TSILIMANTOS ,  Stefan VALENTIN ,  Theodoros KARAGKIOULES ,  Amaya NOGALES GOMEZ ,  Xianwen SHI ,  Zhijun CHAO

IPC: H04L12/851 ,  H04L12/801 ,  H04L12/853 ,  H04L12/841 ,  H04L12/835 ,  H04L29/06

Abstract: The present invention relates to traffic profiling in real time within a video streaming session. First, multiple data packet flows at a lower layer of the OSI model are observed. A data packet flow pattern is obtained for each observed flow, and each obtained pattern is compared to a pre-defined characteristic streaming pattern. From the observed flows, any data packet flow that has its data packet flow pattern close to the pre-defined characteristic streaming pattern is selected as a video streaming flow. A buffer state of the video streaming flow is identified amongst a filling state, a steady state, and a depletion state, by observing a slope of accumulated data over time. Eventually, multimedia-related information of the selected video streaming flow is provided based on its data packet flow pattern.

公开(公告)号：US20190223256A1

公开(公告)日：2019-07-18

申请号：US16363358

申请日：2019-03-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Nizhong LIN ,  Lingli PANG ,  Xiaoxiao ZHENG ,  Xianwen SHI

IPC: H04W88/08 ,  H04W88/02 ,  H04W80/06 ,  H04W80/02 ,  H04L29/06 ,  H04W28/06

CPC classification number: H04W88/08 ,  H04L1/18 ,  H04L69/163 ,  H04W28/06 ,  H04W80/02 ,  H04W80/06 ,  H04W88/02

Abstract: A data transmission method, a network device, and a terminal device are disclosed. The network device determines activation instruction information, where the activation instruction information is used to instruct to enable or disable a transmission control protocol (TCP) quick acknowledgement function. The network device sends the activation instruction information, and if the activation instruction information instructs to enable the TCP quick acknowledgement function, maintains a mapping relationship between a TCP sequence number and a radio link control layer protocol data unit (RLC PDU) sequence number. The terminal device receives the activation instruction information, and enables or disables the TCP quick acknowledgement function according to the activation instruction information, thereby optimizing a data transmission method using a TCP quick acknowledgement scheme.