公开(公告)号：US11122497B2

公开(公告)日：2021-09-14

申请号：US15970115

申请日：2018-05-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hao Chen ,  Young-Han Nam ,  Chao He ,  Vikram Chandrasekhar ,  Hongbo Si ,  Boon Loong Ng

IPC: H04W48/10 ,  H04W8/08 ,  H04W24/10 ,  H04W56/00 ,  H04W48/16

Abstract: Apparatuses and methods for synchronization signal (SS) block index and timing indication in wireless communication systems. A method of operating a user equipment (UE) includes receiving, from a base station (BS), sets of higher-layer configuration information. When configured for mobility measurement on SS and physical broadcast channel (PBCH) (SS/PBCH) blocks, the UE identifies, based on one of the sets of higher-layer configuration information, a first set of SS/PBCH blocks configured for the mobility measurement; and measures and reports mobility measurement quantities for the first set of SS/PBCH blocks. When configured for receiving a physical downlink shared channel (PDSCH), the UE identifies, based on another of the sets of higher-layer configuration information, a second set of SS/PBCH blocks configured for the UE; and receives the PDSCH with rate matching around a SS/PBCH block included in the second set of SS/PBCH blocks.

公开(公告)号：US11811588B2

公开(公告)日：2023-11-07

申请号：US17192780

申请日：2021-03-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Russell Douglas Ford ,  Mandar N. Kulkarni ,  Pranav Madadi ,  Vikram Chandrasekhar ,  Yan Xin ,  Sangkyu Park ,  Hakyung Jung

IPC: H04L41/0654 ,  H04L41/0631 ,  H04L41/069 ,  H04L43/067 ,  H04L41/0604

CPC classification number: H04L41/064 ,  H04L41/069 ,  H04L41/0609 ,  H04L41/0654 ,  H04L43/067

Abstract: Apparatuses and methods for identifying network anomalies. A method includes determining a cumulative anomaly score over a predefined time range based on a subset of historical PM samples and determining an anomaly ratio of a first time window and a second time window, based on the cumulative anomaly score. The method also includes determining one or more anomaly events coinciding with CM parameter changes based on the anomaly ratio; collating the PM, alarm, and CM data into a combined data set based on matching fields and timestamps; generating a set of rules linking one or more CM parameter changes and the collated data to anomaly events; and generating root cause explanations for CM parameter changes that are linked to anomaly events.

公开(公告)号：US20210351973A1

公开(公告)日：2021-11-11

申请号：US17192780

申请日：2021-03-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Russell Douglas Ford ,  Mandar N. Kulkarni ,  Pranav Madadi ,  Vikram Chandrasekhar ,  Yan Xin ,  Sangkyu Park ,  Hakyung Jung

IPC: H04L12/24 ,  H04L12/26

Abstract: Apparatuses and methods for identifying network anomalies. A method includes determining a cumulative anomaly score over a predefined time range based on a subset of historical PM samples and determining an anomaly ratio of a first time window and a second time window, based on the cumulative anomaly score. The method also includes determining one or more anomaly events coinciding with CM parameter changes based on the anomaly ratio; collating the PM, alarm, and CM data into a combined data set based on matching fields and timestamps; generating a set of rules linking one or more CM parameter changes and the collated data to anomaly events; and generating root cause explanations for CM parameter changes that are linked to anomaly events.

公开(公告)号：US11032717B2

公开(公告)日：2021-06-08

申请号：US16143178

申请日：2018-09-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pengda Huang ,  Hao Chen ,  Chance Tarver ,  Boon Loong Ng ,  Vikram Chandrasekhar ,  Jianzhong Zhang

IPC: H04B7/022 ,  H04B17/309 ,  H04B17/382 ,  H04J11/00 ,  H04L5/00 ,  H04W8/18 ,  H04W8/24 ,  H04W16/14 ,  H04W24/10 ,  H04W48/16 ,  H04W60/00 ,  H04W72/14 ,  H04W74/08 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08 ,  H04W88/12 ,  H04W88/18 ,  H04W92/02 ,  H04W92/10 ,  H04W92/12 ,  H04W92/20 ,  H04W92/22 ,  H04W84/04

Abstract: A method of operating a base station (BS) for a coexistence operation in a wireless communication system is provided. The method comprises performing a first measurement of first signals received from neighbor BSs over channels that are shared with the neighbor BSs before receipt of a spectrum access grant from a network entity; generating a registration request comprising a first measurement report based on the first measurement of the first signals; transmitting, to the network entity, the registration request comprising the first measurement report of the first signals; receiving the spectrum access grant from the network entity; and performing a second measurement of second signals received from the neighbor BSs over the channels that are shared with the neighbor BSs after receiving the spectrum access grant from the network entity.

公开(公告)号：US12082264B2

公开(公告)日：2024-09-03

申请号：US17813296

申请日：2022-07-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Boon Loong Ng ,  Young-Han Nam ,  Vikram Chandrasekhar

IPC: H04W72/23 ,  H04W48/10 ,  H04W48/12 ,  H04W72/0453 ,  H04W74/00 ,  H04W74/0833 ,  H04W48/16 ,  H04W76/27

CPC classification number: H04W74/0833 ,  H04W48/10 ,  H04W48/12 ,  H04W72/0453 ,  H04W72/23 ,  H04W74/006 ,  H04W48/16 ,  H04W76/27

Abstract: A method of a user equipment (UE) for control resource set (CORESET) configuration in a wireless communication system is provided. The method comprises receiving, from a base station (BS), system information, determining whether the system information includes a random access channel (RACH) CORESET configuration, determining a CORSET to use for transmitting data based on whether the RACH CORESET configuration is included in the system information, and receiving, from the BS, the data based on the determined CORESET over an RACH.

公开(公告)号：US11516051B2

公开(公告)日：2022-11-29

申请号：US16270486

申请日：2019-02-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vikram Chandrasekhar ,  Jianzhong Zhang ,  Saidhiraj Amuru ,  Yeqing Hu ,  Hao Chen

IPC: H04L25/02 ,  G06N3/08 ,  G06N20/00 ,  G06N3/04

Abstract: An apparatus for performing a wireless communication includes a communication interface configured to measure uplink (UL) Sounding Reference Signals (SRSs) transmitted from a mobile client device, and at least one processor configured to buffer a number of uplink (UL) SRS measurements derived from UL SRS transmissions of the mobile client device, the number of UL SRS measurements exceeding a threshold, extract features from UL SRS measurements, obtain a machine learning (ML) classifier for determining a category to be used for estimating mobility associated with the mobile client device, and determine the category of the mobile client device by applying the extracted features to the ML classifier. Methods and apparatus extract the features of either a set of power spectrum density measurements or a set of pre-processed frequency domain real and imaginary portions of UL SRS measurements and feed the features to an AI classifier for UE speed estimation.

公开(公告)号：US20220353920A1

公开(公告)日：2022-11-03

申请号：US17813296

申请日：2022-07-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Boon Loong Ng ,  Young-Han Nam ,  Vikram Chandrasekhar

IPC: H04W74/08 ,  H04W72/04 ,  H04W48/10 ,  H04W74/00 ,  H04W48/12

Abstract: A method of a user equipment (UE) for control resource set (CORESET) configuration in a wireless communication system is provided. The method comprises receiving, from a base station (BS), system information, determining whether the system information includes a random access channel (RACH) CORESET configuration, determining a CORSET to use for transmitting data based on whether the RACH CORESET configuration is included in the system information, and receiving, from the BS, the data based on the determined CORESET over an RACH.

公开(公告)号：US20200382361A1

公开(公告)日：2020-12-03

申请号：US15929951

申请日：2020-05-29

Applicant: Samsung Electronics Co., Ltd

Inventor： Vikram Chandrasekhar ,  Yongseok Park ,  Shan Jin ,  Pranav Madadi ,  Eric Johnson ,  Jianzhong Zhang ,  Russell Ford

IPC: H04L12/24 ,  G06N20/00 ,  G06N5/04

Abstract: A method for discovering and diagnosing network anomalies. The method includes receiving key performance indicator (KPI) data and alarm data. The method includes extracting features based on samples obtained by discretizing the KPI data and the alarm data. The method includes generating a set of rules based on the features. The method includes identifying a sample as a normal sample or an anomaly sample. In response to identifying the sample as the anomaly sample, the method includes identifying a first rule that corresponds to the sample, wherein the first rule indicates symptoms and root causes of an anomaly included in the sample. The method further includes applying the root causes to derive a root cause explanation of the anomaly and performing a corrective action to resolve the anomaly based on the first rule.

公开(公告)号：US10555040B2

公开(公告)日：2020-02-04

申请号：US16221292

申请日：2018-12-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vikram Chandrasekhar ,  Yuqiang Heng ,  Jianzhong Zhang

IPC: H04N21/462 ,  H04N21/61 ,  H04N21/2343 ,  H04N21/845 ,  H04L12/851 ,  H04L12/801 ,  G06N20/20 ,  G06N3/04 ,  H04L29/06

Abstract: Methods and apparatus for classifying a traffic packet service of a traffic flow to a client device, a state and/or video resolution of a streaming video player in a client device. The apparatus includes a memory, and a communication interface configured to obtain TCP/IP or UDP/IP headers of packets to a client device, at least one processor operably connected to the memory, the at least one processor configured to detect a start of a traffic flow, and buffer a first number of packets for the traffic flow, extract features from UDP/IP or TCP/IP headers of a second number of packets belonging to the detected traffic flow, and obtain a flow service classifier for classifying a service type of the traffic flow, and classify the service type of the traffic flow by applying the extracted features to the flow service classifier.

公开(公告)号：US20180324678A1

公开(公告)日：2018-11-08

申请号：US15970115

申请日：2018-05-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hao Chen ,  Young-Han Nam ,  Chao He ,  Vikram Chandrasekhar ,  Hongbo Si ,  Boon Loong Ng

IPC: H04W48/10 ,  H04W56/00 ,  H04W24/10 ,  H04W8/08

CPC classification number: H04W48/10 ,  H04W8/08 ,  H04W24/10 ,  H04W56/001

Abstract: Apparatuses and methods for synchronization signal (SS) block index and timing indication in wireless communication systems. A method of operating a user equipment (UE) includes receiving, from a base station (BS), sets of higher-layer configuration information. When configured for mobility measurement on SS and physical broadcast channel (PBCH) (SS/PBCH) blocks, the UE identifies, based on one of the sets of higher-layer configuration information, a first set of SS/PBCH blocks configured for the mobility measurement; and measures and reports mobility measurement quantities for the first set of SS/PBCH blocks. When configured for receiving a physical downlink shared channel (PDSCH), the UE identifies, based on another of the sets of higher-layer configuration information, a second set of SS/PBCH blocks configured for the UE; and receives the PDSCH with rate matching around a SS/PBCH block included in the second set of SS/PBCH blocks.