公开(公告)号：US10432326B2

公开(公告)日：2019-10-01

申请号：US15607349

申请日：2017-05-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Wang ,  Ganghua Yang

IPC: H04B17/12 ,  H01Q1/08 ,  H01Q1/12 ,  H04B7/02 ,  H04B7/06 ,  H04B17/318

Abstract: The present disclosure discloses a method, an apparatus, a device, and a system for antenna alignment. The method includes: performing, according to a target preset condition, adjustment processing on a phase and an amplitude of a signal that is transmitted by each antenna unit of a first antenna, and the second antenna is located within a coverage scope of the target beam; and determining that a difference between a horizontal angle of the target beam and a mechanical horizontal angle of a current mechanical location of the first antenna is a horizontal angle, that needs to be adjusted, of the first antenna, adjusting the mechanical horizontal angle and the mechanical pitch angle of the first antenna according to the horizontal angle that needs to be adjusted and the pitch angle that needs to be adjusted.

公开(公告)号：US10264601B2

公开(公告)日：2019-04-16

申请号：US15687293

申请日：2017-08-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Wang ,  Xiuqiang Xu ,  Yan Chen

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04B7/00 ,  H04B7/0452 ,  H04B7/0456 ,  H04L1/00 ,  H04L25/00

Abstract: The present disclosure describes a downlink control information transmission method and apparatus. The method includes: determining multiple terminal devices used for downlink scheduling; determining downlink control information used by the multiple terminal devices to receive downlink data flows, where the downlink control information includes common control information shared by the multiple terminal devices, dedicated control information of each of the multiple terminal devices, and device identifier information of each terminal device, and an order of the device identifier information of each terminal device is the same as an order of the dedicated control information of each terminal device; and sending the downlink control information to the multiple terminal devices.

公开(公告)号：US10264471B2

公开(公告)日：2019-04-16

申请号：US15296918

申请日：2016-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Deli Qiao ,  Ye Wu ,  Lei Wang

IPC: H04W24/08 ,  H04W16/28 ,  H04B17/336 ,  H04B7/0413 ,  H04B7/06 ,  H04L5/14 ,  H04W72/04 ,  H04B7/04

Abstract: An adaptive multi-antenna data transmission method, apparatus, and system are provided. The adaptive multi-antenna data transmission method includes: acquiring, at a current time interval, a beam adjustment parameter of user equipment UE; adjusting a beam width of the UE according to the beam adjustment parameter of the UE; and performing precoding processing on to-be-transmitted data of the UE according to an adjusted beam width of the UE and direction information of the UE, so as to perform data transmission. A beam width of UE is adjusted, so that a direction of a beam during data transmission can better match a direction of the UE. Therefore, a status or quality of a link for the UE is improved and a performance loss is reduced.

公开(公告)号：US10236949B2

公开(公告)日：2019-03-19

申请号：US15891658

申请日：2018-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Deli Qiao ,  Lei Wang

IPC: H04B7/04 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0452

Abstract: Embodiments of the present invention disclose a base station, including: a first channel state information acquiring module, configured to acquire channel state information of dimension-reduced channel subspace by means of level-one channel state information measurement; a set determining module, configured to: schedule the user equipment, and determine a set of user equipment involved in multiple-input multiple-output; a second channel state information acquiring module, configured to: perform level-two channel state information measurement on user equipment in the set of user equipment to acquire state information of a dimension-reduced real-time channel; and a data sending module, configured to: process downlink data and a user-specific demodulation reference signal by means of two-level precoding, and send processed downlink data and a processed user-specific demodulation reference signal to the user equipment in the set of user equipment.

公开(公告)号：US10219278B2

公开(公告)日：2019-02-26

申请号：US15474200

申请日：2017-03-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Wang ,  Shunqing Zhang ,  Yan Chen

IPC: H04B7/12 ,  H04W72/04 ,  H04W16/02 ,  H04L1/04 ,  H04L5/00 ,  H04L27/34 ,  H04L1/00

Abstract: A data transmission method and a related device are disclosed. The data transmission method includes: obtaining to-be-transmitted K bits; mapping the K bits to F resource units according to a codebook and a value of the K bits, so as to obtain a codeword CK that is to be transmitted by using the F resource units, where the codebook includes S codewords in a one-to-one mapping relationship with S different values of the K bits; and sending the codeword CK by using the F resource units.

公开(公告)号：US09923614B2

公开(公告)日：2018-03-20

申请号：US15337834

申请日：2016-10-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Ye Wu ,  Deli Qiao ,  Lei Wang

IPC: H04B7/04 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0452

CPC classification number: H04B7/0413 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0626 ,  H04L5/0051

Abstract: Embodiments of the present invention disclose a base station, including: a first channel state information acquiring module, configured to acquire channel state information of dimension-reduced channel subspace by means of level-one channel state information measurement; a set determining module, configured to: schedule the user equipment, and determine a set of user equipment involved in multiple-input multiple-output; a second channel state information acquiring module, configured to: perform level-two channel state information measurement on user equipment in the set of user equipment to acquire state information of a dimension-reduced real-time channel; and a data sending module, configured to: process downlink data and a user-specific demodulation reference signal by means of two-level precoding, and send processed downlink data and a processed user-specific demodulation reference signal to the user equipment in the set of user equipment.

公开(公告)号：US20170317795A1

公开(公告)日：2017-11-02

申请号：US15655189

申请日：2017-07-20

Applicant: Huawei Technologies Co., Ltd. ,  Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.

Inventor： Lei Wang ,  Martin Kurras ,  Lars Thiele ,  Thomas Haustein ,  Dageng Chen ,  Ye Wu ,  Deli Qiao

IPC: H04L5/00 ,  H04W24/10

CPC classification number: H04L5/005 ,  H04B7/0482 ,  H04B7/0639 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0051 ,  H04L27/261 ,  H04W24/10

Abstract: Embodiments of the present invention provide a precoding information obtaining method and a device. The method includes: separately precoding, by a network device by using N sub-codebooks, a pilot group including K pilots to obtain N precoded pilot groups, where the sub-codebooks are subsets of a precoding codebook, the precoding codebook includes M precoding vectors, each sub-codebook includes K precoding vectors; sending, by the network device, a precoded pilot group to a terminal device in each of W RB groups; and receiving, by the network device, precoding information fed back by the terminal device for any one of W precoded pilot groups. According to the precoding information obtaining method and the device, a quantity of pilot signals sent by the network device in each RB group is reduced, and pilot overheads in each RB group are reduced.

公开(公告)号：US20170289979A1

公开(公告)日：2017-10-05

申请号：US15630331

申请日：2017-06-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuqiang Xu ,  Lei Wang ,  Lu Rong ,  Shunqing Zhang ,  Yan Chen

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

Abstract: Embodiments disclose a method and an apparatus for transmitting indication information. The method includes: determining, according to one or more codebooks, a first codebook to be used by a terminal device to send an uplink data stream; determining codebook indication information used to indicate the first codebook; and determining codebook indication information used to indicate the first codebook. For the method and the apparatus for transmitting indication information according to embodiments of the present invention, a network device determines, according to one or more codebooks, a first codebook to be used by a terminal device to send an uplink data stream, determines codebook indication information used to indicate the first codebook, and sends the codebook indication information to the terminal device, so that the terminal device can determine the first codebook assigned by the network device and transmit data by using the first codebook.

公开(公告)号：US20170255673A1

公开(公告)日：2017-09-07

申请号：US15600199

申请日：2017-05-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Feng Li ,  Lei Wang ,  Yun Zhang ,  Xiaobing Feng

IPC: G06F17/30

CPC classification number: G06F16/24542 ,  G06F16/24524 ,  G06F16/2454

Abstract: A batch data query method and apparatus are provided. According to the method, multiple logical query plan trees corresponding to multiple query statements are obtained. The multiple logical query plan trees are divided into multiple query groups according to operators of each logical query plan tree. Logical query plan trees in each query group have the following relationship: an inter-query write-read dependency relationship, an operator overlap relationship, or an operand overlap relationship. Then, inter-query optimization is performed on the logical query plan trees in each query group, and multiple corresponding physical query plan trees are generated according to the multiple optimized logical query plan trees. Finally, physical queries are executed according to the multiple physical query plan trees, to obtain query results of the multiple query statements.

公开(公告)号：US09678277B2

公开(公告)日：2017-06-13

申请号：US14952688

申请日：2015-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Zhou ,  Lei Wang ,  Huafeng Lin ,  Zhenxing Liao

IPC: H04B10/00 ,  G02B6/293 ,  C23C18/16 ,  G02B27/14 ,  G02B27/30 ,  H04B10/079 ,  H04B10/25 ,  G02B6/42 ,  G02B1/11

CPC classification number: G02B6/29361 ,  C23C18/1633 ,  G02B1/11 ,  G02B6/4215 ,  G02B6/4286 ,  G02B27/141 ,  G02B27/30 ,  H04B10/07957 ,  H04B10/2504

Abstract: A filter includes two translucent bodies. Each of the translucent bodies has a first plane, a second plane that forms a wedge angle with the first plane, and a third plane that intersects with both the first plane and the second plane, first planes of the two translucent bodies are parallel to each other, and second planes of the two translucent bodies are parallel to each other. The filter also comprises a beam splitting film, where surfaces of both sides are respectively combined with the first planes of the two translucent bodies. Two reflective films are combined, respectively, with the second planes of the two translucent bodies.