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    Method and apparatus for initial access in wireless communication systems
    11.
    发明授权
    Method and apparatus for initial access in wireless communication systems 有权

    公开(公告)号：US10887143B2

    公开(公告)日：2021-01-05

    申请号：US15582575

    申请日：2017-04-28

    Applicant: Samsung Electronics Co., Ltd

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

    IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W74/00

    Abstract: A base station includes a controller configured to map initial access signals, each initial access signal corresponding to one of a plurality of transmit beams, to a subset or all of a plurality of predefined time locations in at least one periodicity, and a transmitter configured to transmit the mapped initial access signals to a UE and indicate OFDM symbols that are not mapped with the initial access signals in the one periodicity to the UE. A UE includes a transceiver configured to receive initial access signals mapped to a subset or all of time locations in one periodicity from a base station, the each initial access signal corresponding to one of a plurality of different beams, and a controller configured to perform an initial access to the base station and receive the indication of OFDM symbols that are not mapped with the initial access signals in the one periodicity.

    Partial port hybrid CSI feedback for MIMO wireless communication systems
    13.
    发明授权
    Partial port hybrid CSI feedback for MIMO wireless communication systems 有权

    公开(公告)号：US10129906B2

    公开(公告)日：2018-11-13

    申请号：US15445958

    申请日：2017-02-28

    Applicant: Samsung Electronics Co., Ltd

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

    IPC: H04W72/00 ,  H04W74/00 ,  H04B7/06 ,  H04L5/00 ,  H04W24/10 ,  H04B7/0413

    Abstract: The method comprises receiving periodic CSI feedback configuration information including a periodicity value and an offset value corresponding to a first CSI report, and at least one periodicity value and at least one offset value corresponding to a second CSI report, measuring a first CSI reference signal (CSI-RS) and a second CSI-RS configured for a periodic CSI reporting based on at least two different enhanced MIMO types (eMIMO-Types), generating the first CSI report and the second CSI report for the first eMIMO-Type and the second eMIMO-Type, respectively, determining a periodic reporting interval for each of the first CSI report and the second CSI report, and reporting the first and second CSI reports based on the determined periodic reporting intervals using a physical uplink control channel (PUCCH) format 2 or a PUCCH format 3 or a combination of the PUCCH format 2 and the PUCCH format 3.

    CSI feedback for MIMO wireless communication systems with polarized active antenna array
    14.
    发明授权
    CSI feedback for MIMO wireless communication systems with polarized active antenna array 有权

    公开(公告)号：US10084579B2

    公开(公告)日：2018-09-25

    申请号：US14874216

    申请日：2015-10-02

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Young-Han Nam ,  Yang Li ,  Eko Onggosanusi

    IPC: H04Q7/00 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0456

    CPC classification number: H04L5/0048 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0639 ,  H04W72/046

    Abstract: A base station capable of communicating with a user equipment (UE) includes a transceiver configured to transmit 8-port Channel State Information-Reference Signal (CSI-RS) according to a CSI-RS configuration for the UE, and downlink signals containing the CSI-RS configuration on physical downlink shared channels (PDSCH), and receive, from the UE, uplink signals containing Precoder Matrix Indicator (PMI) derived using the 8-port CSI-RS, and a controller configured to convert the PMI to one of predetermined precoding vectors. A user equipment includes a transceiver configured to receive downlink signals containing a CSI-RS configuration on PDSCH transmitted by the BS, and 8-port CSI-RS according to the CSI-RS configuration, and transmit uplink signals containing a PMI, a controller configured to decode the CSI-RS configuration from the downlink signals, and derive the PMI by utilizing channel estimates based on the 8-port CSI-RS, the PMI mapped to one of precoding vectors.

    INTEGRATED TWO DIMENSIONAL ACTIVE ANTENNA ARRAY COMMUNICATION SYSTEM
    16.
    发明申请
    INTEGRATED TWO DIMENSIONAL ACTIVE ANTENNA ARRAY COMMUNICATION SYSTEM 有权
    集成二维主动天线阵列通信系统

    公开(公告)号：US20160127003A1

    公开(公告)日：2016-05-05

    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: H04B1/40 ,  H04B17/11 ,  H04B7/06 ,  H01Q3/36

    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。

    METHOD AND APPARATUS FOR CHANNEL STATE INFORMATION BASED ON ANTENNA MAPPING AND SUBSAMPLING
    17.
    发明申请
    METHOD AND APPARATUS FOR CHANNEL STATE INFORMATION BASED ON ANTENNA MAPPING AND SUBSAMPLING 有权
    基于天线映射和补充的信道状态信息的方法和装置

    公开(公告)号：US20160080052A1

    公开(公告)日：2016-03-17

    申请号：US14850157

    申请日：2015-09-10

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yang Li ,  Young-Han Nam ,  Eko Onggosanusi ,  Md. Saifur Rahman ,  Jianzhong Zhang

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

    CPC classification number: H04B7/0456 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04L5/005

    Abstract: Non-zero power channel state information reference signals (CSI-RS) are transmitted only on a subsampled pattern of antennas within an antenna array. Based on the transmitted CSI-RS, channel state information is determined for all antennas within the antenna array by, for example, precoder matrix indicator (PMI) interpolation or channel quality indicator (CQI) compensation. The determination of CSI for all antennas within the antenna array may be made by a user equipment receiving the subsampled CSI-RS or a base station transmitting the subsampled CSI-RS.

    Abstract translation: 非零功率信道状态信息参考信号（CSI-RS）仅在天线阵列内的子采样天线模式上发射。 基于发送的CSI-RS，通过例如预编码器矩阵指示符（PMI）内插或信道质量指示符（CQI）补偿来确定天线阵列内的所有天线的信道状态信息。 天线阵列内所有天线的CSI的确定可以由接收子采样的CSI-RS的用户设备或发送子采样CSI-RS的基站进行。

    CM based channel status information enhancement
    18.
    发明授权
    CM based channel status information enhancement 有权

    公开(公告)号：US12301387B2

    公开(公告)日：2025-05-13

    申请号：US18446386

    申请日：2023-08-08

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yeqing Hu ,  Yang Li ,  Jianzhong Zhang

    IPC: H04L25/02

    Abstract: Methods and apparatuses for canonical model (CM) based channel status information enhancement. A base station includes a transceiver configured to receive a reference signal from a user equipment (UE) and a processor operably coupled to the transceiver. The processor is configured to perform a linear transformation based on the received reference signal, select a basis set based on the linear transformation, select a set of kernels based on the selected basis set and the linear transformation, and reconstruct a channel based on the selected set of kernels.

    UE ASSISTED ON-DEMAND ROBUST PHASE CALIBRATION ALGORITHM FOR DISTRIBUTED MIMO BASED ON MULTI-PORT CSI-RS PMI FEEDBACK
    19.
    发明申请
    UE ASSISTED ON-DEMAND ROBUST PHASE CALIBRATION ALGORITHM FOR DISTRIBUTED MIMO BASED ON MULTI-PORT CSI-RS PMI FEEDBACK 有权

    公开(公告)号：US20240421858A1

    公开(公告)日：2024-12-19

    申请号：US18604406

    申请日：2024-03-13

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Thuy Van Nguyen ,  Yang Li ,  R A Nadisanka Perera Rupasinghe ,  Kyung-Joong Kim

    IPC: H04B7/024 ,  H04B7/06

    Abstract: A method of operating a network entity includes transmitting, via a first TRP and a second TRP, a first DL RS; receiving from a UE, based on the first DL RS, first CSI; determining, based on the first CSI, a calibrated quadrant; transmitting, via the first TRP and the second TRP, a second DL RS based on the calibrated quadrant; and receiving from the UE, based on the second DL RS, second CSI. The method further includes, for N iterations, determining, based on the (N+1)th CSI, an adjusted calibrated phase; transmitting, via the first TRP and the second TRP, an (N+2)th DL RS based on the adjusted calibrated phase; and receiving from the UE, based on the (N+2)th DL RS, (N+2)th CSI. The method further includes, after the N iterations, determining, based on a most recently received (N+2)th CSI, a converged calibrated phase.

    PMI FEEDBACK-BASED CALIBRATION IN DISTRIBUTED MIMO
    20.
    发明公开
    PMI FEEDBACK-BASED CALIBRATION IN DISTRIBUTED MIMO 审中-公开

    公开(公告)号：US20240333358A1

    公开(公告)日：2024-10-03

    申请号：US18525682

    申请日：2023-11-30

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： R A Nadisanka Perera Rupasinghe ,  Yang Li ,  Thuy Van Nguyen ,  Jianzhong Zhang

    IPC: H04B7/06 ,  H04L5/00

    CPC classification number: H04B7/0639 ,  H04B7/0626 ,  H04B7/063 ,  H04L5/0051

    Abstract: A method of operating a network entity includes receiving, from a UE, via a first TRP and a second TRP, a SRS, and estimating a channel based on the received SRS. The method further includes, for N iterations: transmitting, via the first TRP, a CSI-RS with a first polarization; transmitting, via the second TRP, the CSI-RS with a second polarization and a controlled phase offset; receiving, from the user equipment UE, a PMI report associated with the CSI-RS including co-phasing information between the first polarization and the second polarization; and updating the controlled phase offset, based on the co-phasing information. After the N iterations, the method further includes, based on the controlled phase offset and the co-phasing information, determining a phase mis-match for phase calibration between the first TRP and the second TRP.

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