公开(公告)号：US20220131579A1

公开(公告)日：2022-04-28

申请号：US17572854

申请日：2022-01-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Heng XU ,  Jian LI

IPC: H04B7/0456 ,  H04L5/00

Abstract: This application discloses a precoding processing method and an apparatus. The method includes: A base station determines first downlink channel information based on a pilot signal received from a terminal device. The base station receives a precoding matrix indication PMI from the terminal device, determines second downlink channel information based on the PMI, determines a precoding matrix of a downlink channel based on the first downlink channel information and second downlink channel information, and performs precoding processing by using the precoding matrix. In this method, when calculating a downlink BF weight, the base station combines the downlink channel information obtained based on the pilot signal with the precoding matrix indicated by the PMI, to compensate for a quantization error caused by feedback of a single PMI indication. This method improves accuracy of beamforming weights.

公开(公告)号：US20180212730A1

公开(公告)日：2018-07-26

申请号：US15934357

申请日：2018-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hui HUANG ,  Fengyong QIAN ,  Qicong ZHAN ,  Dongmei FANG ,  Heng XU

IPC: H04L5/00 ,  H04B7/06 ,  H04W72/04 ,  H04W28/26

CPC classification number: H04L5/0048 ,  H04B7/0617 ,  H04L25/0202 ,  H04W28/26 ,  H04W72/0406

Abstract: The present invention discloses a pilot allocation method and apparatus, and relates to the field of wireless communications technologies, so as to resolve a problem that relatively strong pilot interference is generated between users on which MUBF pairing is performed. In the embodiments of the present invention, a base station determines user equipments UEs requiring multi-user beam forming MUBF pairing and to-be-allocated ports, sets a quantity of orthogonal cover codes OCCs according to a quantity of the to-be-allocated ports, and determines a pilot allocation result according to the quantity of the to-be-allocated ports, the quantity of the OCCs, and a quantity of the UEs. The solutions provided in the embodiments of the present invention are applicable to pilot allocation.

公开(公告)号：US20210136765A1

公开(公告)日：2021-05-06

申请号：US17147002

申请日：2021-01-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Quanzhong GAO ,  Heng XU ,  Mingtao XU ,  Kunchao BAO

IPC: H04W72/04 ,  H04L25/02

Abstract: Embodiments of this application relate to the communications field, and provide a data transmission control method. The method includes: obtaining, by the first communications apparatus, radio frequency signals; processing, by the first communications apparatus, at least two parts of signals in the radio frequency signals in at least two functional split manners, to generate at least two parts of transmission signals, where each part of signals in the radio frequency signals is processed in one functional split manner, and different parts of signals in the radio frequency signals are processed in different functional split manners; and sending, by the first communications apparatus, the at least two parts of transmission signals to the second communications apparatus.

公开(公告)号：US20200162940A1

公开(公告)日：2020-05-21

申请号：US16749103

申请日：2020-01-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Quanzhong GAO ,  Heng XU ,  Guochen LIU ,  Liwei GE ,  Jianbiao XU ,  Senbao GUO

IPC: H04W16/28 ,  H04W72/04 ,  H04W72/10 ,  H04W88/08

Abstract: This application provides example data dimension reduction methods, apparatus, and systems, computer devices, and storage mediums, and relates to the communications field. One example method includes receiving an antenna domain received signal, where the antenna domain received signal includes an uplink signal that is received from UE by an array antenna corresponding to an RRS, wherein the antenna domain received signal is a time domain signal, a dimension of the antenna domain received signal is N1, and N1 is an integer greater than 1. A received beam weight is obtained based on channel information of the UE. Dimension reduction is performed on the antenna domain received signal by using the received beam weight to obtain a beam domain received signal, where the beam domain received signal is a frequency domain signal, a dimension of the beam domain received signal is N2, and 0

公开(公告)号：US20190159217A1

公开(公告)日：2019-05-23

申请号：US16261262

申请日：2019-01-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Quanzhong GAO ,  Heng XU ,  Jing ZHAO ,  Zhipeng YE

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/02 ,  H04B7/0404

Abstract: The present disclosure relates to channel quality measurement methods and equipment. One example method includes obtaining, by a user equipment (UE), a signal sending policy. The UE comprises a baseband chip, at least two transmit antennas, and a controller connected to the at least two transmit antennas. The signal sending policy is a policy pre-agreed on by the UE and a base station. The signal sending policy comprises sending sounding reference signals (SRSs) to the base station in a preset order by using n transmit antennas of the at least two transmit antennas. n is an integer greater than or equal to 1. The UE sequentially selects, in the preset order, the n transmit antennas from the at least two transmit antennas. The UE sequentially sends the SRS signals to the base station by using the n transmit antennas.

公开(公告)号：US20140044213A1

公开(公告)日：2014-02-13

申请号：US14053238

申请日：2013-10-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dongmei FANG ,  Wei RUAN ,  Heng XU

IPC: H04B7/06

CPC classification number: H04B7/0615 ,  H01Q1/246 ,  H01Q3/26 ,  H01Q21/24 ,  H04B7/0469 ,  H04B7/0691 ,  H04B7/10

Abstract: Embodiments of the present disclosure provide a data transmission method and an apparatus. The method mainly includes: forming multiple antennas of a BS (base station) into a cross polarization antenna array, and calculating a weighted matrix of a to-be-transmitted data stream of the BS according to channel information between the BS and an MS (mobile station); performing weighted processing on the to-be-transmitted data stream of the BS according to the weighted matrix, and sending a data stream that has undergone the weighted processing from the BS to the MS. The embodiments of the present disclosure may enhance the demodulation performance because the cross polarization antenna array is adopted at the BS, and certain irrelevancy exists between cross antennas; therefore, the embodiments of the present disclosure may significantly enhance the overall performance of sending the data stream from a BS side to an MS side.

Abstract translation: 本公开的实施例提供了一种数据传输方法和装置。 该方法主要包括：将BS（基站）的多个天线形成为交叉极化天线阵列，并根据BS与MS之间的信道信息计算BS的待传输数据流的加权矩阵（ 移动台）; 对根据加权矩阵的BS的待发送数据流执行加权处理，并且将经过加权处理的数据流从BS发送到MS。 本公开的实施例可以增强解调性能，因为在BS处采用交叉极化天线阵列，并且在交叉天线之间存在某些不相关性; 因此，本公开的实施例可以显着增强从BS侧向MS侧发送数据流的整体性能。

公开(公告)号：US20200288495A1

公开(公告)日：2020-09-10

申请号：US16881495

申请日：2020-05-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Quanzhong GAO ,  Yong WANG ,  Heng XU ,  Liwen ZHANG ,  Guochen LIU

IPC: H04W72/12 ,  H04L5/10 ,  H04W88/08

Abstract: An uplink signal transmission method includes receiving, by an active antenna unit of a base station, a first uplink signal sent by a terminal in a first band. The method also includes sending, by the base station, the first uplink signal to a first baseband processing unit of the base station corresponding to a second band for demodulation. The active antenna unit of the base station includes a first array antenna corresponding to the first band and a second array antenna corresponding to the second band. The first band is lower than the second band.

公开(公告)号：US20230136286A1

公开(公告)日：2023-05-04

申请号：US18146730

申请日：2022-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Quanzhong GAO ,  Heng XU ,  Zongdi YUE ,  Liwen ZHANG ,  Fang ZHANG

IPC: H04W72/0446 ,  H04W72/0453 ,  H04W72/541 ,  H04W72/512

Abstract: This application provides a communication resource scheduling method and an apparatus. The communication resource scheduling method in this application may include: indicating that a first resource of a first cell is used for first transmission, and indicating that a second resource of a neighboring cell of the first cell is used for second transmission, where at least one of time domain, frequency domain, space domain, code domain, or power domain of the second resource is different from at least one of time domain, frequency domain, space domain, code domain, or power domain of the first resource. In embodiments of this application, different scheduling manners may be used for the first cell and the neighboring cell of the first cell, to meet different service requirements of terminal devices in different cells, and avoid uplink and downlink interference while meeting the different service requirements.

公开(公告)号：US20210315022A1

公开(公告)日：2021-10-07

申请号：US17349160

申请日：2021-06-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Heng XU ,  Jian LI ,  Mingtao XU

IPC: H04W74/08 ,  H04W72/04 ,  H04W16/28

Abstract: Embodiments of this application relate to a PRACH detection method, and the method includes: sequentially detecting frequency domain data of each beam in at least two groups of beams; obtaining frequency domain data of a frequency corresponding to a PRACH from frequency domain data of a currently detected beam; determining a time domain correlation peak of the PRACH based on the frequency domain data of the frequency corresponding to the PRACH; determining a first peak value based on the time domain correlation peak of the PRACH; and when the first peak value is greater than or equal to a first threshold, sending a random access response message to user equipment.