公开(公告)号：US10797913B2

公开(公告)日：2020-10-06

申请号：US16252252

申请日：2019-01-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yeqing Hu ,  Rui Wang ,  Boon Loong Ng ,  Young-Han Nam ,  Jin Yuan ,  Gary Xu ,  Jianzhong Zhang

IPC: H04L25/02 ,  H04L5/14 ,  H04B7/10 ,  H04B7/0413 ,  H04B7/0456 ,  H04L5/00

Abstract: Reciprocity base frequency division duplex (FDD) multiple-input-multiple-output (MIMO) downlink (DL) channel Channel-State Information (CSI) acquisition is provided. A base station (BS) includes a transceiver configured to measure uplink (UL) sounding reference signals (SRSs) at a UL carrier frequency, using two polarization components of an antenna array of the BS, and a processor configured to determine a quantity of propagation paths between the BS and a user equipment (UE), for each of the determined propagation paths, extract propagation parameters from the UL SRS measurements, for each of the determined propagation paths, predict a downlink (DL) channel based on the extracted propagation parameters and a DL carrier frequency, and generate a precoding channel matrix for the UE by summing the predicted DL channels for each of the determined propagation paths and for each of the two polarization components of the antenna array of the BS.

公开(公告)号：US20190229953A1

公开(公告)日：2019-07-25

申请号：US16252252

申请日：2019-01-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yeqing Hu ,  Rui Wang ,  Boon Loong Ng ,  Young-Han Nam ,  Jin Yuan ,  Gary Xu ,  Jianzhong Zhang

IPC: H04L25/02 ,  H04B7/0413 ,  H04B7/10 ,  H04L5/14

Abstract: Reciprocity base frequency division duplex (FDD) multiple-input-multiple-output (MIMO) downlink (DL) channel Channel-State Information (CSI) acquisition is provided. A base station (BS) includes a transceiver configured to measure uplink (UL) sounding reference signals (SRSs) at a UL carrier frequency, using two polarization components of an antenna array of the BS, and a processor configured to determine a quantity of propagation paths between the BS and a user equipment (UE), for each of the determined propagation paths, extract propagation parameters from the UL SRS measurements, for each of the determined propagation paths, predict a downlink (DL) channel based on the extracted propagation parameters and a DL carrier frequency, and generate a precoding channel matrix for the UE by summing the predicted DL channels for each of the determined propagation paths and for each of the two polarization components of the antenna array of the BS.

公开(公告)号：US10014916B2

公开(公告)日：2018-07-03

申请号：US14935172

申请日：2015-11-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jin Yuan ,  Yang Li ,  Young-Han Nam ,  Ioannis Tzanidis ,  Gang Xu ,  Md. Saifur Rahman ,  Yan Xin ,  Robert Monroe ,  Jianzhong Zhang ,  Eko Onggosanusi

IPC: H04W72/04 ,  H04B7/04 ,  H04B7/0426 ,  H04B7/0452 ,  H04B7/06 ,  H01Q1/24 ,  H01Q3/26 ,  H01Q21/06 ,  H01Q21/22 ,  H04B7/0456 ,  H04B17/12 ,  H04L5/00

CPC classification number: H04B7/043 ,  H01Q1/246 ,  H01Q3/2605 ,  H01Q3/267 ,  H01Q21/065 ,  H01Q21/22 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0671 ,  H04B17/12 ,  H04B17/373 ,  H04L5/0048

Abstract: A method for operating a large scale antenna array in a wireless communication system includes receiving one or more signals. The one or more signals include information for beamforming to a plurality of user equipments (UEs) using a full-dimensional multiple-input multiple-output (FD-MIMO) beamforming scheme. The FD-MIMO beamforming scheme includes same time resources and same frequency resources that are co-scheduled to the plurality of UEs. The method further includes identifying a time delay of the one or more signals associated with one or more antenna arrays that are distributed in the large scale antenna array and performing a multi-user (MU) joint beamforming on the one or more signals to one or more UEs.

公开(公告)号：US09584231B2

公开(公告)日：2017-02-28

申请号：US14817018

申请日：2015-08-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Gang Xu ,  Robert Monroe ,  Ioannis Tzanidis ,  Jianzhong Zhang ,  Yang Li ,  Jin Yuan ,  Eko Onggosanusi

IPC: H04M1/00 ,  H04B17/11 ,  H01Q3/36 ,  H01Q1/24 ,  H01Q21/28 ,  H04B17/391 ,  H04B7/06

CPC classification number: H04B17/11 ,  H01Q1/246 ,  H01Q3/2605 ,  H01Q3/267 ,  H01Q3/36 ,  H01Q3/42 ,  H01Q21/28 ,  H04B7/0617 ,  H04B17/3912

Abstract: A base station (BS) capable of communication with a number of transmission points includes a processor configured to control a beamforming transmission or reception and an integrated antenna array system. The integrated antenna array system includes a baseband signal processing unit configured to perform baseband functions and disposed between the two sections. The integrated antenna array system also includes a plurality of physical antenna elements disposed in groups. Each of the groups includes an equal number of the plurality of physical antenna elements. The plurality of physical antenna elements are disposed symmetrically around the baseband signal processing unit.

Abstract translation: 能够与多个传输点通信的基站（BS）包括配置成控制波束形成传输或接收的处理器和集成天线阵列系统。 集成天线阵列系统包括被配置为执行基带功能并设置在两个部分之间的基带信号处理单元。 集成天线阵列系统还包括以组为单位设置的多个物理天线元件。 每个组包括相等数量的多个物理天线元件。 多个物理天线元件围绕基带信号处理单元对称设置。