公开(公告)号：US20170325260A1

公开(公告)日：2017-11-09

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: H04W74/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04L27/2607 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0082 ,  H04L5/0092 ,  H04L27/2602 ,  H04L27/265

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.

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。

公开(公告)号：US20160157218A1

公开(公告)日：2016-06-02

申请号：US14874216

申请日：2015-10-02

Applicant: Samsung Electronics Co., Ltd.

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

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

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

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.

Abstract translation: 能够与用户设备（UE）通信的基站包括收发器，被配置为根据用于UE的CSI-RS配置发送8端口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，并且从UE接收包含使用8端口CSI-RS导出的预编码器矩阵指示符（PMI）的上行链路信号，以及控制器，被配置为将PMI转换为预定的 预编码向量。 用户设备包括收发器，被配置为接收由BS发送的PDSCH上包含CSI-RS配置的下行链路信号，以及根据CSI-RS配置的8端口CSI-RS，并发送包含PMI的上行链路信号，配置的控制器 从下行链路信号解码CSI-RS配置，并且通过利用基于8端口CSI-RS的信道估计来导出PMI，PMI映射到预编码向量之一。

公开(公告)号：US20160072562A1

公开(公告)日：2016-03-10

申请号：US14593711

申请日：2015-01-09

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0478 ,  H04B7/0486 ,  H04B7/0639

Abstract: Scalable channel state information feedback for FD-MIMO involves quantizing the downlink channel according to a finite set of basis vectors to reduce the number of coefficients quantized and reported from a user equipment to a base station. The procedure includes measurement at the base station of angle of arrival spread for uplink signal reception from the user equipment and signaling that spread to the user equipment. The user equipment then quantizes the MIMO channel according to a sub-scheme configured based upon the signaled spread and reports (feeds back) the quantized channel to the base station.

Abstract translation: 用于FD-MIMO的可扩展信道状态信息反馈包括根据有限的一组向量来量化下行链路信道，以减少从用户设备向基站量化和报告的系数的数量。 该过程包括在基站处测量来自用户设备的上行链路信号接收到达的角度以及向用户设备传播的信令。 用户设备然后根据基于信号扩展配置的子方案量化MIMO信道，并将量化信道报告（反馈）到基站。

公开(公告)号：US20250105899A1

公开(公告)日：2025-03-27

申请号：US18894934

申请日：2024-09-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Daoud Burghal ,  Andreas Molisch ,  Yang Li ,  Yan Xin

IPC: H04B7/06 ,  H04W24/10 ,  H04W64/00

Abstract: A base station includes a transceiver, and a processor operatively coupled to the transceiver. The processor is configured to estimate a mobility level of a user equipment (UE), and determine whether the estimated mobility level of the UE exceeds a speed threshold. The processor is also configured to generate, from a channel response prediction model, a future channel response prediction based on the estimated mobility level of the UE and whether the estimated mobility of the UE exceeds the speed threshold.

公开(公告)号：US20240073063A1

公开(公告)日：2024-02-29

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

CPC classification number: H04L25/0242 ,  H04L25/021

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.

公开(公告)号：US20230388158A1

公开(公告)日：2023-11-30

申请号：US18183114

申请日：2023-03-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yeqing Hu ,  Yang Li ,  Tiexing Wang ,  Junmo Sung ,  Jianzhong Zhang

IPC: H04L25/02

CPC classification number: H04L25/0254 ,  H04L25/0256 ,  H04L25/0204

Abstract: A method includes determining estimated features comprising second order statistics based on at least one received signal. The method also includes classifying, using a machine learning network, each channel of the at least one received signal into a channel profile based on the estimated features. The method also includes obtaining multiple minimum mean square error (MMSE) channel estimation weights from a database based on the estimated features, the database storing (i) representative MMSE estimation weights and (ii) channel cluster representatives indexed by the estimated features. The method also includes applying a respective MMSE channel estimation weight for each channel.

公开(公告)号：US11581959B2

公开(公告)日：2023-02-14

申请号：US17188934

申请日：2021-03-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yang Li ,  Junmo Sung ,  Rui Wang ,  Yeqing Hu

IPC: H04W48/16 ,  H04B17/18 ,  H04B17/10 ,  H04B17/12 ,  H04W80/02 ,  H04B17/26 ,  H04W72/04 ,  H04W56/00 ,  H04L25/02

Abstract: A base station (UE) is configured to perform a computer-implemented method for antenna fault detection and correction. The computer-implemented method includes acquiring one or more sounding reference signals (SRSs) received from at least one gNB antenna; detecting an antenna failure based on the one or more SRSs; estimating a noise power based on the antenna failure and a history of received SRSs; detecting a missing SRS based on the noise power and the history of received SRSs; and handling the missing SRS. Handling the missing SRS is based on performing at least one of: replacing an SRS measurement with a predicted SRS value for the missing SRS when the predicted SRS is available; or avoiding use of the missing SRS in a sequential SRS prediction when the predicted SRS is unavailable.

公开(公告)号：US11509355B2

公开(公告)日：2022-11-22

申请号：US17303710

申请日：2021-06-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Young Han Nam ,  Boon Loong Ng ,  Yang Li ,  Sudhir Ramakrishna ,  Md. Saifur Rahman

IPC: H04B7/024 ,  H04B7/06 ,  H04L5/00

Abstract: A base station includes a controller configured to configure an MRS resource set comprising a group of MRS resources, each MRS resource comprising a set of MRS antenna ports. If at least two MRS antenna ports belong to a same MRS resource, then the at least two MRS antenna ports are quasi co-located with respect to a first set of QCL parameters, else if the at least two MRS antenna ports belong to a same MRS resource set, then the at least two MRS antenna ports are quasi co-located with respect to a second set of QCL parameters, and else the at least two MRS antenna ports are not quasi co-located with respect to either the first set or the second set of QCL parameters. The MRS is a CSI-RS for estimating a CSI and at least one of the first set and the second set of QCL parameters.

公开(公告)号：US20220278762A1

公开(公告)日：2022-09-01

申请号：US17541160

申请日：2021-12-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rui Wang ,  Yang Li ,  Yeqing Hu ,  Junmo Sung ,  Tiexing Wang ,  Jianzhong Zhang

IPC: H04B17/373 ,  H04B7/06

Abstract: Methods and apparatuses for a channel estimation and prediction operation in a wireless communication systems. A method of a BS comprises: receiving an SRS; partitioning, based on a partition policy, a frequency band of the SRS into sub-bandwidths in a frequency domain; generating, based on previously stored CSI in memory and the partition policy, a set of chunks corresponding to respective sub-bandwidths; performing CHPD operations corresponding to the respective sub-bandwidths to generate channel parameters, wherein different CHPD operations are applied to the respective sub-bandwidths; combining the channel parameters predicted from the respective sub-bandwidths in the frequency domain; and performing, based on the combined channel parameters, a channel estimation and prediction operation.