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：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。