Patents by Inventor Young Han Nam

Young Han Nam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11974282
    Abstract: A method of user equipment (UE) in a wireless communication system. The method comprises receiving, from a base station (BS), a downlink signal including position information for orthogonal frequency division multiplexing (OFDM) symbols of a short physical uplink control channel (PUCCH), determining, based on the position information, a position of the OFDM symbols of the short PUCCH included in a slot, and transmitting, to the BS, the short PUCCH using the OFDM symbols based on the determined position.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: April 30, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Sudhir Ramakrishna, Li Guo, Boon Loong Ng
  • Publication number: 20240113826
    Abstract: Methods and apparatuses for estimating channel state information in advanced multi input multi output (MIMO) antenna systems for cellular communications. A method of operating a base station (BS) includes: generating first configuration information including a set of sounding reference signal (SRS) resources each of which is associated with an sounding reference signal (SRS)-path loss reference signal; transmitting, to a user equipment (UE), the first configuration information; receiving an SRS based on the first configuration information; selecting, based on the SRS and the first configuration information, a subset of the set of SRS resources; and generating second configuration information including the subset of the set of SRS resources.
    Type: Application
    Filed: September 15, 2023
    Publication date: April 4, 2024
    Inventors: Young Han Nam, Jianhua Mo, Bilal Sadiq, Ahmad AlAmmouri
  • Publication number: 20240080162
    Abstract: Systems and methods for for efficient information exchange between UE and gNB to enable AI/ML based CSI Compression for CSI feedback enhancement.
    Type: Application
    Filed: August 2, 2023
    Publication date: March 7, 2024
    Applicant: Mavenir Systems, Inc.
    Inventors: Ali Fatih Demir, Dang Qua Nguyen, Vishal Goyal, Mehmet Mert Sahin, Young-Han Nam
  • Publication number: 20240072967
    Abstract: System and methods for implementations of sub-band correlation computation among all scheduled users to efficiently pair users across any group of Physical Resource Blocks.
    Type: Application
    Filed: August 15, 2023
    Publication date: February 29, 2024
    Applicant: MAVENIR SYSTEMS, INC.
    Inventors: Logeshwaran Vijayan, Nithin Kumar, Young-Han Nam
  • Patent number: 11902075
    Abstract: Configuring control information comprises determining a frequency offset including an RB and RE level frequency offset, where the frequency offset is determined based on a lowest RE of an SS/PBCH block and a lowest RE of CORESET for RMSI, jointly configuring, using a first field of 4 bits, the RB level frequency offset with a multiplexing pattern of the SS/PBCH block and the CORESET, a BW of the CORESET, and a number of symbols for the CORESET for a combination of a SCS of the SS/PBCH block and a SCS of the CORESET, configuring using a second field of the 4 bits generating an MIB including the RB level frequency offset and the RE level frequency offset; and transmitting, to a UE, the MIB over a PBCH.
    Type: Grant
    Filed: September 19, 2022
    Date of Patent: February 13, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbo Si, Young-Han Nam, Youngbum Kim, Taehyoung Kim
  • Patent number: 11870523
    Abstract: A method for channel state information (CSI) reporting comprises receiving, by a user equipment (UE) from a base station (BS), a medium access control (MAC) control element (CE) signaling including a quasi co-location (QCL) indication between a first resource and a second resource and activation of the second resource, wherein the UE is configured with the second resource for CSI reporting; and identifying, by the UE from the MAC-CE signaling, the activation of the second resource and a QCL relation between the first resource and the second resource based on the QCL indication.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: January 9, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Boon Loong Ng
  • Patent number: 11849463
    Abstract: A user equipment (UE) in a wireless communication system. The UE comprises at least one processor configured to determine a first subcarrier spacing and a transceiver configured to transmit, to a base station (BS), random access signals generated with the first subcarrier spacing and receive a downlink control signaling comprising a physical (PHY) resource configuration that includes a second subcarrier spacing. The UE further comprises at least one processor configured to set the PHY resource configuration for at least one of uplink transmission or downlink reception.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: December 19, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Thomas David Novlan, Boon Loong Ng, Sudhir Ramakrishna, Li Guo, Jianzhong Zhang
  • Publication number: 20230361972
    Abstract: Described are implementations for HARQ-disabling in IoT-NTN deployment AND disabling HARQ-ACK feedback. Signaling mechanisms include configurations for HARQ process ID(s), NPDCCH monitoring, a New Data Indicator (NDI) bit in Downlink Control Information (DCI), and a HARQ-ACK feedback transmission in the uplink.
    Type: Application
    Filed: April 27, 2023
    Publication date: November 9, 2023
    Applicant: Mavenir Systems, Inc.
    Inventors: Neng WANG, Young-Han NAM, Sina KHOSHABI-NOBAR
  • Patent number: 11728951
    Abstract: Channel State Information (CSI) is reported by a subscriber station to a base station. The CSI is reported periodically for at least two physical uplink control channels (PUCCH). In case of a collision between a report for a first PUCCH and a report for the second PUCCH, each of the report types is partitioned into one of a number of classes, which include: a first class for rank indicator related report types and wideband (WB) W1 report types; a second class for WB report types or WB channel quality indicator report types; and a third class for subband related report types or W1 report types. A priority rule assigns a priority to each of the classes. The CSI feedback reports are transmitted according to the priority rule such that the report type included in a higher class is transmitted and the report type included in the lower class are dropped.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: August 15, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Lingjia Liu, Young-Han Nam, Jianzhong Zhang
  • Patent number: 11689994
    Abstract: Network-assisted device discovery includes initiating the D2D network-assisted device discovery of a receiving UE to enable a target UE and the receiving UE to establish a D2D communication. A discovery feasibility measurement is performed to determine whether a D2D communication between the target UE and the receiving UE is feasible. A discovery setup message is transmitted and a discovery report is received from the target UE.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: June 27, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Thomas David Novlan, Young Han Nam, Boon Loong Ng
  • Patent number: 11678315
    Abstract: One or more embodiments provide a method implemented in a user equipment (UE) used in a wireless communications system. The method includes transmitting an indication to a base station that the UE is capable of transmitting on a single uplink carrier frequency and downlink carrier aggregation. The method also includes receiving an uplink carrier frequency switching pattern from the base station. The method also includes switching uplink carrier frequencies based on the uplink carrier frequency switching pattern.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: June 13, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boon Loong Ng, Thomas Novlan, Aris Papasakellariou, Young-Han Nam
  • Publication number: 20230155864
    Abstract: A system and method of operating an Open Radio Access Network (O-RAN, in which O-RAN the system includes: a baseband unit (BBU) having an O-RAN centralized unit (O-CU) and an O-RAN distributed unit (O-DU); an O-RAN radio unit (O-RU) remote from the BBU; and a fronthaul interface between the O-RU and the BBU. A functional split of O-RAN functions respectively assigned to O-RU and O-DU for the fronthaul interface between the BBU and the O-RU is different for downlink (DL) and uplink (UL) so that at least one of i) demodulation reference signal (DM-RS)-based channel estimation is performed by the O-DU in the DL and by the O-RU in the UL, ii) equalization is performed by the O-DU in the DL and by the O-RU in the UL, and iii) demodulation is performed by the O-DU in the DL and by the O-RU in the UL.
    Type: Application
    Filed: September 16, 2022
    Publication date: May 18, 2023
    Applicant: Mavenir Systems, Inc.
    Inventors: Javad Abdoli, Ali Fatih Demir, Wessam Afifi Ahmed, Young-Han Nam
  • Patent number: 11653240
    Abstract: A method and apparatus report channel state information (CSI) feedback of a user equipment (UE) in a coordinated multipoint communication system. The method includes identifying, when downlink transmissions to the UE are configured with at least two CSI subframe subsets, an interference measurement resource within one of the CSI subframe subsets belonging to a CSI reference resource. The method also includes using the identified interference measurement resource to derive an interference measurement. The apparatus includes a controller configured to, when downlink transmissions to the UE are configured with at least two CSI subframe subsets, identify an interference measurement resource within one of the CSI subframe subsets belonging to a CSI reference resource. The controller is configured to use the identified interference measurement resource to derive an interference measurement.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: May 16, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Krishna Sayana, Young-Han Nam, Jin-Kyu Han, Boon Loong Ng
  • Publication number: 20230087900
    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.
    Type: Application
    Filed: November 18, 2022
    Publication date: March 23, 2023
    Inventors: Young Han Nam, Boon Loong Ng, Yang Li, Sudhir Ramakrishna, Md. Saifur Rahman
  • Publication number: 20230068248
    Abstract: A system for optimizing one of a 5G New Radio (NR) network or a 4G Long Term Evolution (LTE) network operation, includes: an artificial intelligence (AI) engine configured to: a) implement at least one of the following: i) collection of raw training data set; ii) training of an AI agent; iii) inference generation triggered by UE; iv) using at least one of network key performance indicator (KPI) report and network operator inputs; and v) network KPI collection after application of inferences; and b) at least one of infer and apply at least one of i) network-wide optimal per-gNB or per transmission/reception point (TRP) Synchronization Signal (SS) burst set, and ii) associated channel state information reference signal (CSI-RS) configurations for downlink (DL) reference signal transmissions, thereby enhancing at least one of network transmission power efficiency and spectral efficiency.
    Type: Application
    Filed: August 5, 2022
    Publication date: March 2, 2023
    Applicant: Mavenir Systems, Inc.
    Inventors: Atanu Guchhait, Tuhin Subhra Chakraborty, Shubhajeet Chatterjee, Vishal Goyal, Young-Han Nam
  • Patent number: 11595954
    Abstract: One or more embodiments provide a method implemented in a user equipment (UE) used in a wireless communications system. The method includes transmitting an indication to a base station that the UE is capable of transmitting on a single uplink carrier frequency and downlink carrier aggregation. The method also includes receiving an uplink carrier frequency switching pattern from the base station. The method also includes switching uplink carrier frequencies based on the uplink carrier frequency switching pattern.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: February 28, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boon Loong Ng, Thomas David Novlan, Aris Papasakellariou, Young-Han Nam
  • Patent number: 11569966
    Abstract: For CSI reporting mechanisms, a user equipment (UE) includes a transceiver and a processor operably connected to the transceiver. The transceiver is configured to receive channel state information (CSI) process configuration information including at least one beamformed type associated with a plurality of non-zero-power (NZP) CSI reference signal (CSI-RS) resource configurations and receive a CSI-RS resource index (CRI) reporting configuration. The processor is configured to calculate, in response to receipt of the configuration information, a CRI and a channel quality indicator (CQI). The transceiver is further configured to report the CRI and the CQI by transmitting the CRI and the CQI on an uplink channel.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: January 31, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eko Onggosanusi, Hongbo Si, Young-Han Nam
  • Publication number: 20230023515
    Abstract: Configuring control information comprises determining a frequency offset including an RB and RE level frequency offset, where the frequency offset is determined based on a lowest RE of an SS/PBCH block and a lowest RE of CORESET for RMSI, jointly configuring, using a first field of 4 bits, the RB level frequency offset with a multiplexing pattern of the SS/PBCH block and the CORESET, a BW of the CORESET, and a number of symbols for the CORESET for a combination of a SCS of the SS/PBCH block and a SCS of the CORESET, configuring using a second field of the 4 bits generating an MIB including the RB level frequency offset and the RE level frequency offset; and transmitting, to a UE, the MIB over a PBCH.
    Type: Application
    Filed: September 19, 2022
    Publication date: January 26, 2023
    Inventors: Hongbo Si, Young-Han Nam, Youngbum Kim, Taehyoung Kim
  • Patent number: RE49548
    Abstract: Methods and apparatuses schedule resources and identify resource scheduling in a MU MIMO wireless communication system. A method for identifying resource scheduling for a UE includes receiving downlink control information; identifying, from the downlink control information, one or more DM-RS ports assigned to the UE and a PDSCH EPRE to DM-RS EPRE ratio; and identifying data intended for the UE in a resource block in a downlink subframe using the one or more DM-RS ports and the PDSCH EPRE to DM-RS EPRE ratio. A method for scheduling resources includes identifying one or more DM-RS ports to assign to a UE and a PDSCH EPRE to DM-RS EPRE ratio for identifying data intended for the UE in a resource block in a downlink subframe; and including an indication of the one or more DM-RS ports and the PDSCH EPRE to DM-RS EPRE ratio in downlink control information.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: June 6, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boon Loong Ng, Krishna Sayana, Jianzhong Zhang, Young-Han Nam
  • Patent number: RE49807
    Abstract: A method and apparatus provide a user equipment (UE) configured to communicate with a plurality of carrier aggregation (CA) groups with at least a first CA group (CG1) and a second CA group (CG2). The UE includes processing circuitry. The processing circuitry is configured to determine whether the UE is power-limited. The UE is scheduled to transmit acknowledged information in a physical uplink shared channel (PUSCH) to a cell of the CG1 and uplink control information (UCI), other than the acknowledgement information, in a physical uplink control channel (PUCCH) to a cell of the CG2. The processing circuitry is also configured to, responsive to the UE being power-limited, prioritize the PUSCH for power allocation. The processing circuitry is also configured to transmit the PUSCH to the cell of the CG1.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: January 16, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Aris Papasakellariou, Boon Loong Ng, Jianzhong Zhang