公开(公告)号：US11012963B2

公开(公告)日：2021-05-18

申请号：US16400678

申请日：2019-05-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibao Ren ,  Zheng Wang ,  Ting Wang ,  Yuanjie Li

IPC: H04W56/00 ,  H04W74/08 ,  H04W84/04

Abstract: A wireless communication method and apparatus are disclosed. In an embodiment a wireless communication method includes receiving, by a first device, at least two pieces of timing advance (TA) information, wherein the at least two pieces of TA information are corresponding to at least two beams of the first device on the same carrier and performing, by the first device, timing adjustments on transmissions on the at least two beams based on the at least two pieces of TA information.

公开(公告)号：US10924244B2

公开(公告)日：2021-02-16

申请号：US16188159

申请日：2018-11-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibao Ren ,  Yuanjie Li

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  H04L1/00 ,  H04L1/02 ,  H04L1/16 ,  H04B7/00

Abstract: This application relates to the mobile communications field, and in particular, to a channel state information (CSI) feedback technology in a wireless communications system. In a CSI feedback method, a network device allocates, for a feedback of one piece of CSI of user equipment, a physical uplink control channel resource including two physical resource block (PRB) pairs, and the user equipment uses a low bit-rate modulation and coding scheme for a CSI bit, and sends CSI on the physical uplink control channel resource.

公开(公告)号：US10904872B2

公开(公告)日：2021-01-26

申请号：US16221280

申请日：2018-12-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibao Ren ,  Na Deng ,  Ting Wang ,  Yi Huang ,  Yuanjie Li

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04W76/27 ,  H04L1/00

Abstract: This application relates to a downlink control information indication method during coordinated multipoint transmission/reception in a wireless communications system. For a plurality of network side devices that send downlink data to user equipment on a same carrier and in a same subframe, downlink data transmission information used when the network side devices separately send the downlink data is indicated by using a plurality of pieces of downlink control information. Therefore, diversity transmission and/or multi-stream transmission in a multipoint coordination scenario are/is supported, and when the user equipment cannot normally receive downlink data sent by some network side devices because some downlink control information encounters an error, the user equipment may still receive, based on an indication of remaining downlink control information that encounters no error, downlink data sent by a network side device corresponding to the remaining downlink control information that encounters no error.

公开(公告)号：US10819406B2

公开(公告)日：2020-10-27

申请号：US16369043

申请日：2019-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi Huang ,  Yuanjie Li ,  Haibao Ren ,  Liuliu Ji

IPC: H04B7/06 ,  H04B7/0456

Abstract: Embodiments of the present invention provide a method which includes: a terminal device is configured to send precoding matrix indicator information to a radio access network device, wherein the precoding matrix indicator information is used to indicate a precoding matrix in a codebook, and the codebook comprises information about a quantity of corresponding antenna panels and information about a phase difference between different corresponding antenna panels; and the terminal device receives downlink data from the radio access network device.

公开(公告)号：US20200245267A1

公开(公告)日：2020-07-30

申请号：US16794073

申请日：2020-02-18

Applicant: Huawei Technologies Co.,Ltd.

Inventor： Ting Wang ,  Haibao Ren ,  Yuanjie Li

IPC: H04W52/42 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0426 ,  H04B7/0413

Abstract: A power configuration method and a device, the power configuration method including sending, by a first network device, M power configuration parameters to a second network device, where the M power configuration parameters are corresponding to M antenna port sets, wherein at least one of the M antenna port sets belongs to the first network device, where each power configuration parameter is used to calculate power of a downlink data channel between a corresponding antenna port set and the second network device, and where M is an integer greater than or equal to 2.

公开(公告)号：US10530450B2

公开(公告)日：2020-01-07

申请号：US15935035

申请日：2018-03-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibao Ren ,  Yuanjie Li

IPC: H04B7/06 ,  H04L1/06 ,  H04W76/27 ,  H04L5/00 ,  H04W24/10 ,  H04B7/0456

Abstract: A multi-antenna channel measurement method is provided, where: a base station sends a first channel state information-reference signal (CSI-RS) and a second CSI-RS to the terminal, and the first CSI-RS and the second CSI-RS are separately sent by using antenna elements in orthogonal dimensions; the base station receives a first CSI measurement result for the first CSI-RS and the second CSI-RS and that is fed back by the terminal; and the base station sends a third CSI-RS to the terminal according to the first CSI measurement result, and the third CSI-RS has been precoded according to the first CSI measurement result; and the base station receives a third CSI measurement result that is for the third CSI-RS and that is fed back by the terminal. Therefore, reducing calculation complexity on a terminal side of channel measurement and reducing a resource occupied for channel measurement and feedback in a multi-antenna port.

公开(公告)号：US20190356374A1

公开(公告)日：2019-11-21

申请号：US16526379

申请日：2019-07-30

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Haibao Ren ,  Yi Qin ,  Xi Zhang

IPC: H04B7/06 ,  H04W72/14 ,  H04B7/0456 ,  H04L25/02 ,  H04L5/00

Abstract: This application provides a phase tracking reference signal (PTRS) sending method and apparatus. The method includes: implicitly determining, by a terminal device based on obtained uplink grant information and a preset rule, a to-be-sent PTRS and an antenna port for carrying the to-be-sent PTRS, where the antenna port is selected from an antenna port set, and the to-be-sent PTRS is one or more of all available PTRSs; and putting the to-be-sent PTRS on the antenna port, and sending the to-be-sent PTRS on the antenna port. This implicit indication method can effectively reduce air interface signaling overheads and improve air interface efficiency.

公开(公告)号：US20190036570A1

公开(公告)日：2019-01-31

申请号：US16149518

申请日：2018-10-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Na Deng ,  Haibao Ren ,  Yuanjie Li ,  Ting Wang

IPC: H04B7/024 ,  H04B7/0413 ,  H04W72/04

CPC classification number: H04B7/024 ,  H04B7/0413 ,  H04W16/28 ,  H04W28/16 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/044

Abstract: A data transmission method and apparatus are provided. The method includes: receiving control information from a network side device, wherein the control information comprises transmission parameter indication information, wherein the transmission parameter indication information is used to indicate a quantity of transport layers for at least two codewords and port numbers of ports for the at least two codewords; and determining, based on the transmission parameter indication information, a quantity of transport layers for at least two codewords and port numbers of ports for the at least two codewords, wherein ports used by different codewords of the at least two codewords are non-quasi-co-location, and ports used by one codeword of the at least two codewords are quasi-co-location when the codeword has more than one port.