公开(公告)号：US20200014454A1

公开(公告)日：2020-01-09

申请号：US16575206

申请日：2019-09-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Li Guo ,  Young-Han Nam ,  Yang Li ,  Boon Ng

IPC: H04B7/06 ,  H04B17/309 ,  H04B7/0408

Abstract: A method of user equipment (UE) for beam management in a wireless communication system comprises receiving, from a base station (BS), at least two groups of Tx beams comprising transmit (Tx) signals generated from different antenna panels, the at least two groups of Tx beams transmitted through reference signals; receiving, from the BS, configuration information including a selection constraint for the at least two groups of Tx beams; measuring, based on the configuration information, at least one beam from each of the at least two groups of beams; selecting at least one Tx beam from each of the at least two groups and a same Rx beam set as an Rx beam corresponding to respective selected Tx beams; and transmitting, to the BS, a reporting message including information of the selected Tx beams and the selected same Rx beam set corresponding to the Rx beam.

公开(公告)号：US10056685B2

公开(公告)日：2018-08-21

申请号：US14575661

申请日：2014-12-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Khalil Haddad ,  Robert W. Monroe ,  Yang Li

IPC: H01Q3/00 ,  H01Q3/26 ,  H04B17/12 ,  H04B17/21

CPC classification number: H01Q3/267 ,  H04B17/12 ,  H04B17/21

Abstract: A method and apparatus for calibrating an antenna array. The apparatus includes first and second couplers, a calibration transceiver, and a controller. The first coupler operably is connected to a first number of antennas. The second coupler is operably connected to a second number of antennas. The calibration transceiver is operably connected to the first and second couplers via a common path. The controller is configured to perform calibration on at least one or more transmit/receive paths for the second number of antennas based on at least one or more signals received from or transmitted to the first and second couplers via the common path by the calibration transceiver. The first and second numbers of antennas may each include only one antenna, or the first and second numbers of antennas may each be a group of multiple antennas.

公开(公告)号：US09806926B2

公开(公告)日：2017-10-31

申请号：US14526284

申请日：2014-10-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Gang Xu ,  Young Han Nam ,  Yang Li ,  Yan Xin ,  Jianzhong Zhang

IPC: H04L27/26 ,  H04B7/0452 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04L27/2607 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/005 ,  H04L5/0051 ,  H04L27/2634 ,  H04L27/2647

Abstract: A multistage beamforming circuit includes a data unit that implements a frequency domain beamforming stage and a remote radio head that implements a time-domain broadband beamforming stage. The data unit implements the frequency domain beamforming stage by converting K received data streams into M precoding output streams in a frequency-domain. The data unit is configured to transform the M output streams to M OFDM time-domain signals. The remote radio head, or integrated radio unit is configured to implement a time-domain broadband beamforming stage by converting the M OFDM time-domain signals into N transmit streams of time-domain samples. The remote radio head, or integrated radio unit includes a transmit antenna array configured to transmit the N transmit streams that together form broadcast beams and user-specific beams. The antenna array includes a plurality of physical antennas. The number N of transmit streams is greater than the number M of precoding output streams.

公开(公告)号：US09680535B2

公开(公告)日：2017-06-13

申请号：US14918335

申请日：2015-10-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eko Onggosanusi ,  Md. Saifur Rahman ,  Young-Han Nam ,  Yang Li ,  Boon Loong Ng

IPC: H04B7/06 ,  H04B7/0404 ,  H04B7/04 ,  H04L25/03

CPC classification number: H04B7/0404 ,  H04B7/0478 ,  H04B7/0613 ,  H04B7/0639 ,  H04L25/03955

Abstract: A method for operating a base station includes receiving an uplink signal from a user equipment (UE), wherein the uplink signal includes a precoding matrix indicator (PMI) associated with a first precoder index of a codebook determined by a first and a second precoder indices, and a channel quality indicator (CQI). The method includes applying an open-loop diversity operation to at least one data stream including quadrature amplitude modulation (QAM) symbols to generate N_B signal streams and applying a precoding matrix to the N_B signal streams to generate a larger number of N_TX data streams to be transmitted via a plurality of antennas.

公开(公告)号：US20160142115A1

公开(公告)日：2016-05-19

申请号：US14800333

申请日：2015-07-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eko Onggosanusi ,  Jianzhong Zhang ,  Yang Li ,  Young-Han Nam ,  Boon Loong Ng

IPC: H04B7/04 ,  H04W74/00 ,  H04W24/08 ,  H04W72/08 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/065 ,  H04B7/0684 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0048 ,  H04W28/06 ,  H04W48/00 ,  H04W88/08

Abstract: A base station includes a transceiver, and a processor configured to allocate at least one CSI-RS antenna port to a user equipment (UE), precode the at least one CSI-RS antenna port with a first precoding matrix, cause the transceiver to transmit the at least one CSI-RS antenna port precoded with the first precoding matrix through a channel to the UE, cause the transceiver to signal a number of the at least one antenna port to the UE, cause the transceiver to receive an index for a second precoding matrix from the UE, wherein the second precoding matrix is determined by the UE according to the at least one CSI-RS antenna port precoded with the first precoding matrix as received through the channel by the UE and the signaled number of the at least one antenna port, and precode transmission data with the first precoding matrix and the second precoding matrix.

Abstract translation: 基站包括收发器，以及被配置为向用户设备（UE）分配至少一个CSI-RS天线端口的处理器，用第一预编码矩阵对所述至少一个CSI-RS天线端口进行预编码，使得所述收发器发送 所述至少一个CSI-RS天线端口通过到所述UE的信道用所述第一预编码矩阵预编码，使所述收发器向所述UE发送所述至少一个天线端口的数量，使得所述收发器接收到第二 预编码矩阵，其中，所述第二预编码矩阵由所述UE根据由所述UE通过所述信道接收的所述第一预编码矩阵预编码的所述至少一个CSI-RS天线端口来确定，并且所述至少一个 天线端口和具有第一预编码矩阵和第二预编码矩阵的预编码传输数据。

公开(公告)号：US20160119097A1

公开(公告)日：2016-04-28

申请号：US14874252

申请日：2015-10-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Young-Han Nam ,  Yang Li ,  Eko Onggosanusi ,  Md. Saifur Rahman ,  Taeyoung Kim

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

CPC classification number: H04M3/5125 ,  H04B7/0478 ,  H04B7/0639 ,  H04L1/00 ,  H04L5/0023 ,  H04L5/0048 ,  H04L65/1006 ,  H04L65/105 ,  H04L65/1073 ,  H04L65/80 ,  H04M3/5175 ,  H04M3/5191 ,  H04M2203/402 ,  H04W24/00 ,  H04W48/00 ,  H04W88/02 ,  H04W88/08

Abstract: A base station capable of communicating with a user equipment (UE) includes a transceiver configured to transmit Channel State Information-Reference Signal (CSI-RS) according to a CSI-RS configuration comprising a number of antenna ports, and downlink signals containing the CSI-RS configuration and a precoding-matrix-construction configuration for precoding matrix indicator (PMI) reporting on physical downlink shared channels (PDSCH), the precoding-matrix-construction configuration comprising a first and second sampling factors, O1 and O2, and a first and second numbers, N1 and N2, receive, from the UE, uplink signals containing a precoding matrix indicator (PMI) derived using the CSI-RS according to the precoding-matrix-construction configuration, a controller configured to convert the PMI to one of predetermined precoding matrices. Other embodiments including UEs and methods are disclosed.

Abstract translation: 能够与用户设备（UE）进行通信的基站包括：收发器，被配置为根据包括多个天线端口的CSI-RS配置发送信道状态信息参考信号（CSI-RS），以及包含CSI的下行链路信号 -RS配置和用于在物理下行链路共享信道（PDSCH）上报告的预编码矩阵指示符（PMI）的预编码矩阵构造配置，所述预编码矩阵构造配置包括第一和第二采样因子O1和O2，以及第一 并且第二数字N1和N2从UE接收包含根据预编码矩阵构造配置导出的使用CSI-RS导出的预编码矩阵指示符（PMI）的上行链路信号;控制器，被配置为将PMI转换为 预定预编码矩阵。 公开了包括UE和方法的其他实施例。

公开(公告)号：US20150124688A1

公开(公告)日：2015-05-07

申请号：US14526284

申请日：2014-10-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Gang Xu ,  Young Han Nam ,  Yang Li ,  Yan Xin ,  Jianzhong Zhang

IPC: H04L5/00 ,  H04W72/00 ,  H04L27/26 ,  H04B7/04

CPC classification number: H04L27/2607 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/005 ,  H04L5/0051 ,  H04L27/2634 ,  H04L27/2647

Abstract: A multistage beamforming circuit includes a data unit that implements a frequency domain beamforming stage and a remote radio head that implements a time-domain broadband beamforming stage. The data unit implements the frequency domain beamforming stage by converting K received data streams into M precoding output streams in a frequency-domain. The data unit is configured to transform the M output streams to M OFDM time-domain signals. The remote radio head, or integrated radio unit is configured to implement a time-domain broadband beamforming stage by converting the M OFDM time-domain signals into N transmit streams of time-domain samples. The remote radio head, or integrated radio unit includes a transmit antenna array configured to transmit the N transmit streams that together form broadcast beams and user-specific beams. The antenna array includes a plurality of physical antennas. The number N of transmit streams is greater than the number M of precoding output streams.

Abstract translation: 多级波束成形电路包括实现频域波束形成级的数据单元和实现时域宽带波束形成级的远程无线电头。 数据单元通过将K个接收到的数据流转换成频域中的M个预编码输出流来实现频域波束成形阶段。 数据单元被配置为将M个输出流转换为M个OFDM时域信号。 远程无线电头或集成无线电单元被配置为通过将M个OFDM时域信号转换成N个时域样本的发送流来实现时域宽带波束成形阶段。 远程无线电头或集成无线电单元包括被配置为发送一起形成广播波束和用户专用波束的N个发射流的发射天线阵列。 天线阵列包括多个物理天线。 发送流的数量N大于预编码输出流的数量M.

公开(公告)号：US20140334565A1

公开(公告)日：2014-11-13

申请号：US14269962

申请日：2014-05-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ioannis Tzanidis ,  George Zohn Hutcheson ,  Yang Li ,  Jungsuek Oh ,  Wonbin Hong ,  Gary Xu ,  Jianzhong Zhang

IPC: H04B7/04

CPC classification number: H04B7/0456 ,  H01Q1/246 ,  H01Q3/267 ,  H01Q21/0006 ,  H01Q21/062 ,  H01Q21/065 ,  H01Q21/20 ,  H01Q25/04

Abstract: In a Multiple Input Multiple Output (MIMO) system, an apparatus and method includes a Tightly Coupled Array antennas (TCA) or Current Sheet Antennas (CSA). Far-field radiation patterns from any current sheet antenna are formed from the combination of the fields generated by a set of currents on the CSA of array port orthogonal modes, such as the Characteristic Modes (CM). The CM currents are generated by excitation of the CSA element ports with corresponding orthogonal voltages or currents (eigenvectors). Since the radiation patterns of the characteristic modes are orthogonal and uncorrelated, multiple signals may be propagated along the radiation patterns of the characteristic modes, each signal using a different characteristic mode or a different set of characteristic modes. Therefore, a CSA antenna utilizing array port orthogonal modes such as array port characteristic modes can support MIMO communications despite the strong mutual coupling among the antenna elements.

Abstract translation: 在多输入多输出（MIMO）系统中，装置和方法包括紧耦合阵列天线（TCA）或当前天线（CSA）。 来自任何当前片材天线的远场辐射图形由阵列端口正交模式（例如特征模式（CM））的CSA上的一组电流产生的场的组合形成。 通过用对应的正交电压或电流（特征向量）激发CSA元件端口来产生CM电流。 由于特征模式的辐射图是正交的和不相关的，所以可以沿特征模式的辐射图形传播多个信号，每个信号使用不同的特征模式或不同的特征模式集合。 因此，利用阵列端口正交模式（如阵列端口特征模式）的CSA天线可以支持MIMO通信，尽管天线元件之间存在强耦合。