公开(公告)号：US10187291B2

公开(公告)日：2019-01-22

申请号：US14980491

申请日：2015-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanhui Geng ,  Kai Chen ,  Qiang Yang

IPC: H04L12/24 ,  H04L12/26 ,  H04L12/721 ,  H04L12/727 ,  H04L12/729

Abstract: The present application provides a path planning method and a controller. The method includes: acquiring data flow information of a to-be-transmitted job in a software-defined network, where the job includes at least one target data flow, and the data flow information of the job includes: a source address, a destination address, and a volume of each target data flow; and performing path planning according to the data flow information, and obtaining a job transmission path used to ensure that the job is transmitted in the software-defined network in a shortest job transmission time, where the job transmission path includes a transmission path corresponding to each target data flow in the job. The present application improves a data transmission speed of a job in an SDN network.

公开(公告)号：US20180375781A1

公开(公告)日：2018-12-27

申请号：US16127649

申请日：2018-09-11

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Zhitang Chen ,  Yanhui Geng ,  Hong Zhang ,  Kai Chen

IPC: H04L12/891 ,  H04L12/851 ,  H04L29/06 ,  H04L12/927 ,  G06N99/00

CPC classification number: H04L47/41 ,  G06F16/00 ,  G06N7/005 ,  G06N20/00 ,  G06N99/005 ,  H04L29/06 ,  H04L47/2441 ,  H04L47/803 ,  H04L69/22

Abstract: A coflow identification method includes: obtaining a weighted matrix by means of learning according to historical data in the network, where the weighted matrix is used to minimize a feature distance between data streams belonging to a same coflow and maximize a feature distance between data streams belonging to different coflows; computing a feature distance between any two data streams in the network according to metrics in the data stream layer data feature, the application layer data stream feature distance, the terminal aspect data feature distance, and the weighted matrix; and dividing the data streams in the network into several cluster sets by using a clustering algorithm and according to the feature distance between the any two data streams in the network, where each of the several cluster sets is a coflow.

公开(公告)号：US11411878B2

公开(公告)日：2022-08-09

申请号：US17006196

申请日：2020-08-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kun Tan ,  Shuihai Hu ,  Binzhang Fu ,  Kai Chen

IPC: H04L47/283 ,  H04L47/11 ,  H04L47/31 ,  H04L47/32 ,  H04L47/6275

Abstract: A data transmission method implemented by a network device, where the data transmission method includes receiving a first data packet sent by a transmit end, buffering the first data packet to a low-priority queue when the first data packet is sent by the transmit end during a first round-trip time (RTT) of a data transmission phase between the transmit end and a receive end, receiving a second data packet from the transmit end, buffering the second data packet to a high-priority queue when the second data packet is not sent by the transmit end during the first RTT, and forwarding the second data packet in the high-priority queue before the first data packet in the low-priority queue.

公开(公告)号：US10523368B2

公开(公告)日：2019-12-31

申请号：US16006751

申请日：2018-06-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai Chen ,  Bin Li ,  Jie Jin

IPC: H03M13/00 ,  H04L1/00 ,  H03M13/13

Abstract: Embodiments of the present invention disclose a polar code processing method and communications device. The method includes: obtaining, based on a target coded bit quantity M and preset first mapping relationship information, a first sequence number set of M uncoded bits that is corresponding to the target coded bit quantity M, the first mapping relationship information is used to indicate a one-to-one correspondence between a plurality of coded bit quantities and a plurality of uncoded bit sequence number sets, the M uncoded bits include K information bits, and M target coded bits are obtained after polar encoding is performed on the M uncoded bits; and selecting, from the first sequence number set of the M uncoded bits according to a preset first selection rule, K sequence numbers as a sequence number set of the K information bits.

公开(公告)号：US12057904B2

公开(公告)日：2024-08-06

申请号：US18154997

申请日：2023-01-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Jiang ,  Ye Yang ,  Jiapeng Zhang ,  Kai Chen

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0682

Abstract: An apparatus: obtains K downlink channel weight matrices based on K pieces of downlink channel information sent by K UEs, where the downlink channel information is fed back by the UE in response to a preset reference signal sent by the base station, the downlink channel weight matrix is an NT×rank-dimensional matrix, and rank is a quantity of signal streams received by the UE; obtains K×rank first initial phase difference matrices and K×rank second initial phase difference matrices based on the K downlink channel weight matrices and a first polarization direction and a second polarization direction of transmit channels of the base station; obtains a cell initial phase difference matrix based on the K×rank first initial phase difference matrices and the K×rank second initial phase difference matrices; and implements initial phase correction of the transmit channels based on the cell initial phase difference matrix.

公开(公告)号：US20220337528A1

公开(公告)日：2022-10-20

申请号：US17856161

申请日：2022-07-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kun Tan ,  Shuihai Hu ,  Binzhang Fu ,  Kai Chen

IPC: H04L47/283 ,  H04L47/11 ,  H04L47/31 ,  H04L47/32 ,  H04L47/6275

Abstract: A data transmission method implemented by a network device, where the data transmission method includes receiving a first data packet sent by a transmit end, buffering the first data packet to a low-priority queue when the first data packet is sent by the transmit end during a first round-trip time (RTT) of a data transmission phase between the transmit end and a receive end, receiving a second data packet from the transmit end, buffering the second data packet to a high-priority queue when the second data packet is not sent by the transmit end during the first RTT, and forwarding the second data packet in the high-priority queue before the first data packet in the low-priority queue.

公开(公告)号：US20220165091A1

公开(公告)日：2022-05-26

申请号：US17671253

申请日：2022-02-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kai Chen ,  Wenhong Gong ,  Haoquan Shen ,  Mingxue Wang ,  Changcai Lai ,  Xiangyu Hu

IPC: G06V40/16 ,  G06V10/80 ,  G06V10/774 ,  G06V10/77 ,  G06V10/74

Abstract: A face search method and apparatus are provided. The method includes obtaining a to-be-searched face image, and inputting the face image into a first feature extraction model to obtain a first face feature. The method further includes inputting the face image and the first face feature into a first feature mapping model for feature mapping, to output a standard feature corresponding to the first face feature, and performing face search for the face image based on the standard feature. Features extracted by using a plurality of feature extraction models are concatenated, and a concatenated feature is used as a basis for constructing a standard feature.

公开(公告)号：US11303328B2

公开(公告)日：2022-04-12

申请号：US17215384

申请日：2021-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dongpei Gao ,  Kai Chen ,  Kangsheng He

IPC: H04B7/0456 ,  H04B7/0417 ,  H04W24/10 ,  H04B7/06

Abstract: A communication method and apparatus, a network device, a terminal device, and a system. The method includes: a network device sends a first reference signal to a terminal device through a first port in a first preset subframe corresponding to a first antenna and sends a second reference signal to the terminal device through the first port in a second preset subframe corresponding to a second antenna. Then, the network device receives first measurement information and second measurement information that are sent by the terminal device, where the first measurement information is measurement information of the first reference signal, and the second measurement information is measurement information of the second reference signal. The network device may determine an antenna weight based on the first measurement information and the second measurement information.

公开(公告)号：US10924413B2

公开(公告)日：2021-02-16

申请号：US16452821

申请日：2019-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Feng Yuan ,  Hong Zhang ,  Kai Chen

IPC: H04L12/803 ,  H04L12/801

Abstract: Embodiments of this application provide a transmission path determining method and apparatus, where the method includes: determining that a current path corresponding to a flow to which a to-be-transmitted packet belongs is congested; and determining a target path for the to-be-transmitted packet based on a path congestion information table, and adding information about the target path to the to-be-transmitted packet, so as to transmit the to-be-transmitted packet based on the target path, where a congestion degree of the target path is less than a congestion degree of the current path, each entry of the path congestion information table includes a transmission path and congestion information corresponding to the transmission path, and the congestion information is used to indicate a congestion degree of the transmission path.

公开(公告)号：US10484137B2

公开(公告)日：2019-11-19

申请号：US15719832

申请日：2017-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin Li ,  Hui Shen ,  Kai Chen

IPC: H03M13/00 ,  H04L1/08 ,  H03M13/13 ,  H04L1/18 ,  H04L1/00

Abstract: Embodiments of the present invention provide a polar code hybrid automatic repeat request method and an apparatus. The method includes: obtaining, by a communications device, a bit sequence of retransmission information, where the bit sequence of the retransmission information includes K retransmission information bits determined from a bit sequence of first transmission information, the bit sequence of the first transmission information includes N first transmission information bits, N is a positive integer, and K is a positive integer not greater than N; performing, by the communications device, polar code encoding on the bit sequence of the retransmission information, to obtain an encoded retransmission bit sequence; and sending, by the communications device, the encoded retransmission bit sequence to another communications device.