公开(公告)号：US12089170B2

公开(公告)日：2024-09-10

申请号：US17693205

申请日：2022-03-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hao Chen ,  Shiyang Leng ,  Ahmed Atef Ibrahim Ibrahim ,  Namjeong Lee ,  Sooyoung Hur

IPC: H04B7/04 ,  H04B7/06 ,  H04W52/18 ,  H04W52/42

CPC classification number: H04W52/42 ,  H04B7/0634

Abstract: Methods and apparatuses in a wireless communication system. A base station (BS) includes a transceiver and a processor. The processor regulates a transmit power in a direction of an earth station or a predefined receiver by: calculating a power flux density for the BS to the earth station or the predefined receiver; calculating an equivalent antenna gain for other base stations; calculating a directional power back-off level for the other base stations with respect to the earth station or the predefined receiver; generating a restricted precoding matrix indicator based on the calculated directional power back-off level; generating an N1-N2 bitmap for the BS; and applying the N1-N2 bitmap for signal transmission to at least one UE. The N1-N2 bitmap is generated based on: physical parameters of the earth station of the predefined receiver; physical parameters of the BS; an operator input metric; or restricted precoding matrix indicator.

公开(公告)号：US12040914B2

公开(公告)日：2024-07-16

申请号：US18047241

申请日：2022-10-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Khuong N. Nguyen ,  Guanbo Chen ,  Hao Chen ,  Abhishek Sehgal ,  Rebal Al Jurdi

IPC: H04L12/28 ,  G06F9/50 ,  G06F16/958 ,  H04L41/16 ,  H04L43/028 ,  H04L43/062 ,  H04L47/2425 ,  H04L47/2441 ,  H04L67/50

CPC classification number: H04L12/2876 ,  G06F9/505 ,  G06F16/958 ,  H04L41/16 ,  H04L43/028 ,  H04L43/062 ,  H04L47/2425 ,  H04L47/2441 ,  H04L67/535

Abstract: A method includes obtaining input features based on network traffic received during a time window. The method also includes generating multiple network service type predictions about the network traffic during the time window using a machine learning (ML) classification system operating on the input features. The method also includes storing the multiple network service type predictions in different time steps in a first-in first-out (FIFO) buffer and generating decisions about a presence of each of multiple service types in the network traffic using a voting algorithm. The method also includes reducing fluctuations in the generated decisions using a logic-based stabilizer module to generate a final network service type decision.

公开(公告)号：US20240235967A1

公开(公告)日：2024-07-11

申请号：US18393398

申请日：2023-12-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Khuong Nhat Nguyen ,  Abhishek Sehgal ,  Hao Chen ,  Guanbo Chen

IPC: H04L43/026 ,  H04L43/0888

CPC classification number: H04L43/026 ,  H04L43/0888

Abstract: A method and apparatus for detecting network service types by grouping together applications that have similar latency requirement and data characteristics to form a service type. Machine learning algorithms may be used to detect the traffic pattern in the traffic stream by using features extracted from packet information and optionally additional sensor information. Subsequently, the output of the machine learning module may go through a post-processing process that may employ different techniques to use current prediction and past predictions to make a final decision about the network service type.

公开(公告)号：US11991581B2

公开(公告)日：2024-05-21

申请号：US17384676

申请日：2021-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hao Chen ,  Lianjun Li ,  Zhou Zhou ,  Yan Xin ,  Jianzhong Zhang

IPC: H04W24/00 ,  H04W24/02 ,  H04W36/00 ,  H04W36/16

CPC classification number: H04W36/165 ,  H04W24/02 ,  H04W36/00837

Abstract: A system and method of a base station are configured to enable a multi-shot network parameter optimization. The method includes generating one or more specified Key Performance Indicators (KPI) constraints based on a selected set of KPIs. The method also includes adjusting common beam parameters to tune a common beam based on the selected set of KPIs. The common beam is tuned to satisfy the one or more specified KPI constraints. The method also includes adjusting handover A2 and A5 parameters based on searching within a three-dimensional space defined by specified A2 and A5 thresholds. The method further includes transmitting one or more signals based on the adjusted the common beam parameters and the adjusted handover A2 and A5 parameters.

公开(公告)号：US20240125916A1

公开(公告)日：2024-04-18

申请号：US18342641

申请日：2023-06-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rebal Al Jurdi ,  Hao Chen ,  Jianyuan Yu ,  Boon Loong Ng ,  Kyu-Hui Han ,  Jianzhong Zhang

IPC: G01S13/76

CPC classification number: G01S13/765

Abstract: An indoor positioning method includes scanning for registered Wi-Fi nodes with known coordinates to generate a list of the registered Wi-Fi nodes. The method also includes performing a ranging operation by (i) selecting nodes to range with from the list of the registered Wi-Fi nodes, and (ii) processing ranging responses from the selected nodes to generate a series of distance measurements. The method further includes obtaining a series of sensor readings generated by one or more inertial measurement units (IMUs) of a device. The method also includes estimating a position of the device based on the series of distance measurements and the series of sensor readings using first and second filtering operations that are performed in parallel.

公开(公告)号：US11901987B2

公开(公告)日：2024-02-13

申请号：US17658011

申请日：2022-04-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shiyang Leng ,  Hao Chen ,  Namjeong Lee ,  Sooyoung Hur

IPC: H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0617 ,  H04B7/0634 ,  H04L5/0048

Abstract: An apparatus in a wireless communication system is configured to perform a method for directional beam nulling of SRS-based data beams. A base station (BS) includes a transceiver and a processor. The processor is configured to transmit a data beam to at least one user equipment (UE). The processor is also configured to configure the data beam to have a null area in a direction of a satellite earth station (ES), the null area defining a space within a coverage area of the data beam in which a signal from the data beam is suppressed. The data beam is configured by: generating one or more steering vectors to the ES; obtaining a UE channel matrix via a sounding reference signal (SRS) and determining a rank value; and generating a beamforming precoder configured to directional null the data beam in the direction of the ES.

公开(公告)号：US20230284269A1

公开(公告)日：2023-09-07

申请号：US18177706

申请日：2023-03-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Abhishek Sehgal ,  Ahmed Atef Ibrahim Ibrahim ,  Hao Chen ,  Boon Loong Ng

IPC: H04W74/08 ,  H04W16/02

CPC classification number: H04W74/0808 ,  H04W16/02 ,  H04W84/12

Abstract: Methods and apparatuses for enabling reuse, by a node in a basic service set (BSS), of a channel medium that is in use by devices of an overlapping BSS (OBSS) in a wireless local area network. A method of wireless communication performed by a first node includes the steps of obtaining, based on transmissions from other nodes in at least one of a BSS or an OBSS, network context information for a network environment around the first node, updating an OBSS packet detection (PD) threshold for spatial reuse (SR) based on the network context information, and performing, for a transmission to one of the other nodes in the BSS, an SR clear channel assessment (CCA) using the updated OBSS PD threshold for detection of packets transmitted by the nodes in the OBSS.

公开(公告)号：US20230030645A1

公开(公告)日：2023-02-02

申请号：US17575559

申请日：2022-01-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shiyang Leng ,  Hao Chen ,  Jianhua Mo ,  Namjeong Lee ,  Sooyoung Hur

IPC: H04B7/0426 ,  H04B7/06 ,  H04W16/28

Abstract: Methods and apparatuses in a wireless communication system. A base station (BS) includes a transceiver and a processor. The processor is configured to transmit a common beam to at least one user equipment (UE). The processor is also configured to configure the common beam to have a null area in a direction of a satellite earth station, the null area defining a space within a coverage area of the common beam in which a signal from the common beam is suppressed.

公开(公告)号：US20220376758A1

公开(公告)日：2022-11-24

申请号：US17506547

申请日：2021-10-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shiyang Leng ,  Ahmed Atef Ibrahim Ibrahim ,  Hao Chen ,  Rebal Al Jurdi ,  Jianzhong Zhang

IPC: H04B7/06 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/12

Abstract: A system and method for user selection in distributed multiple-input, multiple-output (MIMO). The system performs a method that includes configuring a first channel state information-reference signal (CSI-RS) resource set for a serving transmission point (TRP) and a second CSI-RS resource for a concatenated channel, wherein the concatenated channel is between a virtual panel and the apparatus, the virtual panel comprising distributed panels from a serving TRP and a helping TRP. The method also includes computing a metric as a function of one or more quantities included in one or more measurement reports, received from a user equipment (UE), for the concatenated channel and at least one of the serving TRP channel or the helping TRP channel. The method also includes configuring, based on the metric, the UE for one of: a legacy transmission or a distributed MIMO transmission.

公开(公告)号：US20210360474A1

公开(公告)日：2021-11-18

申请号：US17129764

申请日：2020-12-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hao Chen ,  Zhou Zhou ,  Yan Xin ,  Jianzhong Zhang

IPC: H04W28/08 ,  H04W28/02 ,  H04W88/08 ,  G06N3/04 ,  G06N20/00

Abstract: A method for performing mobility load balancing includes receiving, at a server, current load data for a plurality of cells of a wireless communication network, selecting, from the plurality of cells, a target cell (s), wherein a value of the current load data for the target cell exceeds a first predefined threshold, and selecting, from a neighbor cell list corresponding to the target cell, a set of neighboring cells for the target cell. The method further includes calculating, a value of at least one utilization parameter for the target cell, determining, a CIO value and an E-tilt value for the target cell based on the value of the at least one utilization parameter for the target cell and configuring one or more physical layer parameters of the target cell based on the determined CIO and E-tilt values for the target cell.