公开(公告)号：US20200244862A1

公开(公告)日：2020-07-30

申请号：US16847178

申请日：2020-04-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yinting Wang ,  Biying Hu ,  Xi Zhang

IPC: H04N5/235 ,  G06T5/00 ,  G06T5/50 ,  G06T3/00

Abstract: The present invention discloses an image processing method and apparatus, and a device. The method includes: obtaining N frames of images; determining one of the N frames of images as a reference image, where the other N-1 frames of images are to-be-processed images; obtaining N-1 frames of ghost-free images based on the N-1 frames of to-be-processed images; and performing an averaging operation on the reference image and the N-1 frames of ghost-free images, to obtain a first target image. The method can provide a snapshot mode for a camera, so that a user can snap a sharp image in different scenes, thereby improving user experience.

公开(公告)号：US10715367B2

公开(公告)日：2020-07-14

申请号：US16518574

申请日：2019-07-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xi Zhang ,  Minghui Xu ,  Lei Chen

IPC: H04L5/00 ,  H04L27/26 ,  H04L27/20

Abstract: An information transmission method related to the field of communications technologies includes: generating an orthogonal frequency division multiplexing (OFDM) symbol, where the OFDM symbol includes a pi/2-BPSK modulated data signal and a pi/2-binary phase shift keying (BPSK) modulated phase tracking reference signal (PTRS); and sending the OFDM symbol. This method may be applied to an uplink single carrier transmission scenario or a downlink single carrier transmission scenario.

公开(公告)号：US10615933B2

公开(公告)日：2020-04-07

申请号：US16118657

申请日：2018-08-31

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Xi Zhang ,  Rong Wen ,  Lei Chen

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L27/26

Abstract: Embodiments of the present disclosure provide systems, methods and apparatus for reference signal configuration. The method includes: mapping a phase tracking reference signal (PTRS) to one or more OFDM symbols based on information about a correspondence between the PTRS and one or more of a modulation and coding scheme (MCS), a subcarrier spacing, and a bandwidth (BW); and sending the one or more OFDM symbols to which the PTRS is mapped to a receive device. In the embodiments of the present invention, a correspondence between the PTRS and the subcarrier spacing or the modulation and coding scheme or the bandwidth is used to implicitly indicate a time-frequency location of the PTRS. In comparison with the prior art, no explicit indication is required, and signaling overheads are reduced.

公开(公告)号：US20180367277A1

公开(公告)日：2018-12-20

申请号：US16118657

申请日：2018-08-31

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Xi Zhang ,  Rong Wen ,  Lei Chen

IPC: H04L5/00 ,  H04L1/00 ,  H04L27/26

Abstract: Embodiments of the present disclosure provide systems, methods and apparatus for reference signal configuration. The method includes: mapping a phase tracking reference signal (PTRS) to one or more OFDM symbols based on information about a correspondence between the PTRS and one or more of a modulation and coding scheme (MCS), a subcarrier spacing, and a bandwidth (BW); and sending the one or more OFDM symbols to which the PTRS is mapped to a receive device. In the embodiments of the present invention, a correspondence between the PTRS and the subcarrier spacing or the modulation and coding scheme or the bandwidth is used to implicitly indicate a time-frequency location of the PTRS. In comparison with the prior art, no explicit indication is required, and signaling overheads are reduced.

公开(公告)号：US20180310322A1

公开(公告)日：2018-10-25

申请号：US16022309

申请日：2018-06-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Xi Zhang ,  Lei Chen ,  Mao Yan

IPC: H04W72/08 ,  H04J3/16 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W72/085 ,  H04B7/0602 ,  H04J3/1694 ,  H04L5/00 ,  H04L5/0023 ,  H04W72/048 ,  H04W72/1273 ,  H04W72/1289

Abstract: The present disclosure provides a downlink data transmission method, including: using a time-division multiplexing transmission mode in one transmission time interval; sending, by using a wide beam, a control signal to a user served in the current transmission time interval; and grouping users and sending data signals to different user groups by using different narrow beams. In one transmission time interval, time-division multiplexing is used, and a wide beam and a narrow beam are respectively used to transmit a control signal and a data signal. This can avoid a throughput bottleneck resulting from use of a transmission scheme that is based on frequency-division multiplexing only.