公开(公告)号：US11211980B2

公开(公告)日：2021-12-28

申请号：US16812658

申请日：2020-03-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Huangping Jin ,  Wei Han ,  Xiaoyan Bi

IPC: H04B7/0456 ,  H04B7/0417 ,  H04B7/06 ,  H04L5/00

Abstract: This application provides a communication method, a communications apparatus, and a system. The method may include receiving, by a terminal device, a first group of precoded reference signals and a second group of precoded reference signals. The method may also include feeding back first indication information based on a channel state information (CSI) feedback-based transmission scheme, where the first indication information is used to determine a plurality of precoding vectors, at least one of the plurality of precoding vectors is determined by using the first group of precoded reference signals, and at least one of the plurality of precoding vectors is determined by using the second group of precoded reference signals.

公开(公告)号：US11184059B2

公开(公告)日：2021-11-23

申请号：US16746850

申请日：2020-01-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Huangping Jin ,  Wei Han ,  Xiaoyan Bi

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/0417 ,  H04B7/10

Abstract: This application provides a data transmission method and apparatus, and a system. The method includes: receiving, by a terminal device, a first group of precoded reference signals and a second group of precoded reference signals, where the first group of precoded reference signals includes at least one precoded reference signal, and the second group of precoded reference signals includes at least one precoded reference signal; and feeding back, by the terminal device, at least one piece of first indication information based on a transmission scheme that channel state information CSI feedback is based on, where the at least one piece of first indication information is used to determine a plurality of precoding vectors, at least one of the plurality of precoding vectors is a precoding vector corresponding to the at least one precoded reference signal in the first group of precoded reference signals, and at least one of the plurality of precoding vectors is a precoding vector corresponding to the at least one precoded reference signal in the second group of precoded reference signals.

公开(公告)号：US11012130B2

公开(公告)日：2021-05-18

申请号：US16684219

申请日：2019-11-14

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04B7/0456 ,  H04B7/06 ,  H04W80/02

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：US10735080B2

公开(公告)日：2020-08-04

申请号：US16271367

申请日：2019-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Yong Liu ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0452 ,  H04B7/0456 ,  H04W72/12

Abstract: This disclosure includes a transmission scheme indication method, and a data transmission method, apparatus, and system, pertaining to the field of communications technologies. The transmission scheme indication method includes: generating transmission scheme indication information, where the transmission scheme indication information is used to indicate one of at least two transmission schemes included in a current transmission mode, and the at least two transmission schemes include a beamforming transmit diversity transmission scheme; and sending the transmission scheme indication information. This application resolves a problem of relatively low flexibility in UE data transmission, and improves flexibility in UE data transmission. This application is used for data transmission.

公开(公告)号：US10516516B2

公开(公告)日：2019-12-24

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 ,  H04L1/06 ,  H04W24/10 ,  H04B7/06 ,  H04L27/06 ,  H04B7/0456 ,  H04L27/26

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：US10484073B2

公开(公告)日：2019-11-19

申请号：US15625327

申请日：2017-06-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Deli Qiao ,  Ye Wu ,  Dageng Chen ,  Jin Liu

IPC: H04B7/06 ,  H04L5/00

Abstract: Embodiments of the present invention disclose a precoding information collection method and a transmission device and relate to the communications field. A specific solution is: precoding, by a transmit side, a first pilot signal according to a first precoding matrix, and sending a precoded first pilot signal to a receive side, where the first precoding matrix is the same as a precoding matrix used for current data transmission; precoding, by the transmit side, N second pilot signals according to N second precoding matrices, and sending N precoded second pilot signals to the receive side, where N is an integer greater than or equal to 1, the second precoding matrices used for precoding the second pilot signals are different from each other, and the N second precoding matrices are different from the first precoding matrix; and receiving, by the transmit side, precoding feedback information sent by the receive side.

公开(公告)号：US20180234138A1

公开(公告)日：2018-08-16

申请号：US15891658

申请日：2018-02-08

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Ye Wu ,  Deli Qiao ,  Lei Wang

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

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：US09912508B2

公开(公告)日：2018-03-06

申请号：US15216441

申请日：2016-07-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Wang ,  Ye Wu ,  Deli Qiao

IPC: H04L27/26 ,  H04B7/04 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04L27/2628 ,  H04B7/0456 ,  H04B7/068

Abstract: Embodiments of the present disclosure provide an information processing apparatus, a network node, and an information processing method. The information processing apparatus may include an inverse fast Fourier transform (IFFT) module, a precoding module, and a determining module. The IFFT module is configured to separately perform IFFT processing on N frequency-domain data streams to acquire N time-domain data streams, where N is a positive integer. The precoding module is configured to perform precoding processing on the N time-domain data streams to acquire a precoding processing result. The determining module is configured to determine, according to the precoding processing result, an orthogonal frequency division multiplexing OFDM symbol to be sent over each antenna of M antennas.

公开(公告)号：US09510298B2

公开(公告)日：2016-11-29

申请号：US14542381

申请日：2014-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye Wu ,  Wei Zhang

IPC: H04W4/00 ,  H04W52/24 ,  H04W52/50 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04W52/48 ,  H04W88/02 ,  H04W52/26 ,  H04B17/24

CPC classification number: H04W52/241 ,  H04B17/24 ,  H04L1/1893 ,  H04L5/0057 ,  H04W52/265 ,  H04W52/48 ,  H04W52/50 ,  H04W72/0413 ,  H04W72/0446 ,  H04W88/02

Abstract: Embodiments of the present invention provide a method, a device, and a system for transmitting data based on a hybrid automatic repeat request (HARQ). The method includes: adjusting, according to current physical resources, a channel quality indicator (CQI) fed back by a terminal to obtain an adjusted CQI and determining an initial transmit power corresponding to the adjusted CQI; calculating an optimum number NRV of redundant versions (RVs) according to a signal-to-noise ratio (SNR) gain, the adjusted CQI, and a requirement on quality of service of the terminal; adjusting the initial transmit power according to the optimum number of RVs and the adjusted CQI; and using NRV transmit time intervals (TTIs) and the adjusted transmit power to transmit NRV RVs of a transport block (TB) to the terminal. The embodiments of the present invention further provide a base station, a terminal, and a system for transmitting data.

Abstract translation: 本发明的实施例提供了一种基于混合自动重传请求（HARQ）来发送数据的方法，装置和系统。 该方法包括：根据当前物理资源调整由终端反馈的信道质量指示符（CQI），以获得调整后的CQI，并确定与调整后的CQI对应的初始发送功率; 根据信噪比（SNR）增益，调整后的CQI以及对终端的服务质量的要求，计算冗余版本（RV）的最佳数量NRV; 根据最佳RV数和调整后的CQI调整初始发射功率; 并使用NRV发送时间间隔（TTI）和经调整的发射功率将传输块（TB）的NRV RV发送到终端。 本发明的实施例还提供了一种用于发送数据的基站，终端和系统。

公开(公告)号：US20160308646A1

公开(公告)日：2016-10-20

申请号：US15192832

申请日：2016-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Deli Qiao ,  Ye Wu ,  Yan Chen ,  Lei Wang

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0023 ,  H04L1/00 ,  H04L5/0051 ,  H04W72/042

Abstract: The present disclosure provides a data processing method, apparatus, and system. The method includes: receiving N data streams sent by a network-side device, and determining a demodulation reference signal DMRS corresponding to each of the N data streams. The method also includes grouping DMRSs corresponding to the N data streams into M groups; mapping each group of DMRSs in the M groups to corresponding resource element (RE) positions, and acquiring port-related information corresponding to each group of DMRSs. The method further includes sending the port-related information corresponding to each group of DMRSs to a terminal device; adding each group of DMRSs in the M groups to data streams; and sending the data streams to which the DMRSs are added to the terminal device.

Abstract translation: 本公开提供了一种数据处理方法，装置和系统。 该方法包括：接收由网络侧设备发送的N个数据流，以及确定与N个数据流中的每一个对应的解调参考信号DMRS。 该方法还包括将与N个数据流相对应的DMRS分组成M组; 将M组中的每组DMRS映射到对应的资源元素（RE）位置，以及获取与每组DMRS相对应的端口相关信息。 该方法还包括将与每组DMRS对应的端口相关信息发送到终端设备; 将M组中的每组DMRS添加到数据流; 并向终端设备发送添加有DMRS的数据流。