公开(公告)号：US10778299B2

公开(公告)日：2020-09-15

申请号：US16520045

申请日：2019-07-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Wei Han ,  Peng Shang ,  Xiaoyan Bi

IPC: H04B7/0456 ,  H04B7/0417 ,  H04B7/04 ,  H04B7/06

Abstract: The present invention belongs to the field of communications technologies, and discloses a channel state information CSI feedback method and an apparatus. The method includes: determining a codebook of at each transport layer CSI of user equipment UE, where the codebook of the CSI at each transport layer of the UE is: W=W1×W2, an element Xi in W2 is a weighting coefficient corresponding to each codeword in W1, and i is an integer greater than or equal to 1 and less than or equal to K; determining a quantity Ni of bits occupied by a quantized value of an ith element in W2, where quantized values of at least two elements in W2 occupy different quantities of bits; and feeding back the quantized value of the ith element to a network device based on Ni.

公开(公告)号：US10700828B2

公开(公告)日：2020-06-30

申请号：US15995057

申请日：2018-05-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jin Liu ,  Dageng Chen ,  Xiaoyan Bi ,  Yan Chen

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

Abstract: Embodiments of the present application disclose data frame implementation methods and apparatus. In one embodiment, a method includes: configuring a data frame used for radio signal transmission, where the data frame includes at least two subframes, each subframe has a fixed length, the at least two subframes may be mapped to at least two frequency bands with different subcarrier spacings, and a quantity of symbols included in each subframe is corresponding to a subcarrier spacing of a frequency band to which the subframe is mapped. According to embodiments of the present application, various service requirements of 5G mobile communication can be met and a service level of the 5G mobile communication can be improved.

公开(公告)号：US10516462B2

公开(公告)日：2019-12-24

申请号：US16188791

申请日：2018-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Wu ,  Wei Han ,  Peng Shang ,  Jin Liu ,  Xiaoyan Bi ,  Shibin Ge ,  Dageng Chen

IPC: H04B7/06 ,  H04B7/0456 ,  H04L5/00

Abstract: A radio access node (RAN) and method of operation of the RAN are provided. The RAN includes a massive multiple-input-multiple-output (MIMO) antenna array. The RAN includes a processing hardware configured to carry out a communication method that includes receiving a digital data stream for transmission on a time-frequency resource. The RAN precodes the digital data stream using a digital beamforming stage to render a precoded digital downlink data stream for downlink data stream signal transmission to a user equipment. The digital beamforming stage includes a first precoding stage configured according to a long-term matrix, and a second precoding stage configured according to a short-term matrix. The RAN is further configured to generate a downlink data stream transmission signal to the user equipment in accordance with the precoded digital downlink data stream.

公开(公告)号：US10447369B2

公开(公告)日：2019-10-15

申请号：US15858969

申请日：2017-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye Wu ,  Jin Liu ,  Xiaoyan Bi

IPC: H04W72/04 ,  H04B7/06 ,  H04L25/02 ,  H04W24/10

Abstract: Embodiments of the present disclosure provide a method for obtaining channel state information, including: sending, by a base station, one or multiple pieces of downlink signaling to user equipment, where the one or multiple pieces of downlink signaling instruct the user equipment to feed back channel dimension information, where the channel dimension information includes an effective dimension of a channel subspace of a statistical channel between the base station and the user equipment, and the effective dimension of the channel subspace is less than a quantity of reference signal ports used to measure channel state information; and receiving, by the base station, the channel dimension information fed back by the user equipment.

公开(公告)号：US20190261334A1

公开(公告)日：2019-08-22

申请号：US16401788

申请日：2019-05-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Xiaoyan Bi

IPC: H04W72/04

Abstract: This application discloses a transmission control method, apparatus, and system, and a storage medium, and belongs to the field of communications technologies. The method includes: generating target control format indicator information, where the target control format indicator information is used to indicate a target time-frequency resource occupied by a downlink control channel; and sending the target control format indicator information. According to this application, a problem that a time-frequency resource occupied by a downlink control channel cannot be adjusted can be resolved, and the time-frequency resource occupied by the downlink control channel can be flexibly adjusted. This application is used for transmission control.

公开(公告)号：US20190181929A1

公开(公告)日：2019-06-13

申请号：US16237509

申请日：2018-12-31

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Shibin Ge ,  Wei Han ,  Xiaoyan Bi ,  Hongzhe Shi ,  Ye Wu ,  Huangping Jin

IPC: H04B7/0456 ,  H04B7/06

Abstract: This application provides a technical solution for rank indication, and especially when a CQI number is not configured or a CQI number is 1, a network device configures a rank indication restriction parameter as that at least one of ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported by the terminal device; or even if the network device does not perform the foregoing configuration, and none of the ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported, the terminal device may select at least one rank for RI reporting, so as to resolve a problem that a system cannot work. In addition, according to embodiments of this application, bit overheads required for RI reporting may further be reduced.

公开(公告)号：US10299111B2

公开(公告)日：2019-05-21

申请号：US15445575

申请日：2017-02-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye Wu ,  Xiaoyan Bi ,  Deli Qiao ,  Dageng Chen ,  Rongdao Yu

IPC: H04W8/24 ,  H04W76/27 ,  H04W72/04 ,  H04W74/08 ,  H04B7/0404 ,  H04B7/06 ,  H04L5/00

Abstract: Embodiments disclose an antenna information sending method and device, and an antenna information receiving method and device. The method includes: obtaining first antenna information of a terminal device, where the first antenna information includes at least one or more of a maximum number of layers for uplink spatial multiplexing that are supported by the terminal device, an antenna number supported by the terminal device, or whether the terminal device supports smart switch on/off of UE's antenna ports. The method also includes sending the first antenna information to a base station. In this way, the terminal device can control, according to a service requirement of the terminal device, an antenna deployed on the terminal device, and report antenna information of the terminal device to the base station in a timely manner.

公开(公告)号：US20180123671A1

公开(公告)日：2018-05-03

申请号：US15858969

申请日：2017-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye Wu ,  Jin Liu ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04L25/02

CPC classification number: H04B7/0626 ,  H04B7/0639 ,  H04L25/0202 ,  H04W24/10 ,  H04W72/0413

Abstract: Embodiments of the present disclosure provide a method for obtaining channel state information, including: sending, by a base station, one or multiple pieces of downlink signaling to user equipment, where the one or multiple pieces of downlink signaling instruct the user equipment to feed back channel dimension information, where the channel dimension information includes an effective dimension of a channel subspace of a statistical channel between the base station and the user equipment, and the effective dimension of the channel subspace is less than a quantity of reference signal ports used to measure channel state information; and receiving, by the base station, the channel dimension information fed back by the user equipment.

公开(公告)号：US20170214449A1

公开(公告)日：2017-07-27

申请号：US15481845

申请日：2017-04-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoyan Bi ,  Dageng Chen

IPC: H04B7/06 ,  H04B7/0456 ,  H04L25/02 ,  H04B7/04

CPC classification number: H04B7/0639 ,  H04B7/0421 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0626 ,  H04L1/06 ,  H04L25/0248

Abstract: Embodiments of the present invention provide a precoding information obtaining apparatus. The apparatus includes: a determining module, configured to determine a transformation quantity according to a steering vector of an antenna form and a departure-angle range; a sending module, configured to send, to a terminal, information about the transformation quantity determined by the determining module, where the information about the transformation quantity is used by the terminal to determine a PMI according to the information about the transformation quantity, a codebook used for obtaining channel information, and a pilot measurement result; and a receiving module, configured to receive the PMI reported by the terminal. A network node sends a transformation quantity containing antenna information to a terminal, and the terminal feeds back a PMI according to the transformation quantity.

公开(公告)号：US20250142378A1

公开(公告)日：2025-05-01

申请号：US18990914

申请日：2024-12-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haicun Hang ,  Liuliu Ji ,  Hongzhe Shi ,  Xiaoyan Bi

IPC: H04W24/08 ,  H04W72/0446 ,  H04W72/23 ,  H04W72/563

Abstract: This disclosure provides a communication method to implement a function of a hybrid automatic repeat request (HARQ) feedback codebook in a multi-station scenario. In one example communication method performed by a communication apparatus comprises sending a plurality of configuration group identifiers, wherein a plurality of physical downlink shared channel (PDSCH) reception occasions correspond to the plurality of configuration group identifiers. Feedback information of the plurality of PDSCH reception occasions is received based on each of the plurality of configuration group identifiers and according to a predetermined rule of feedback sorting.