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).

  • Publication number: 20200177428
    Abstract: A method of a base station (BS) for transmitting synchronization signals in a wireless communication system. The method comprises generating a primary synchronization signal (PSS) including one of multiple PSS sequences that is generated based on a M-sequence of length 127 in a frequency domain, wherein the PSS indicates part of cell identification (ID) information using a cyclic shift performed on the M-sequence generating the PSS; generating a secondary synchronization signal (SSS) including one of multiple SSS sequences that is generated based on multiple BPSK modulated M-sequences of length 127 in the frequency domain, wherein the SSS indicates the cell ID information using cyclic shifts performed on the M-sequences generating the SSS; and transmitting, to a user equipment (UE), the PSS and SSS over downlink channels.
    Type: Application
    Filed: February 11, 2020
    Publication date: June 4, 2020
    Inventors: Hongbo Si, Young-Han Nam, Eko Onggosanusi, Yuguang Gao, Le Liu
  • Publication number: 20200169895
    Abstract: A server, method, and computer-readable storage medium for coverage prediction in wireless networks. The server includes a memory storing instructions and a processor operably connected to the memory, which is configured to execute the instructions to cause the server to identify a region of interest (RoI) for the coverage prediction; determine, using a neural network, a set of values for a system performance metric for areas in the RoI, respectively; and generate the coverage prediction for the RoI which associates the areas in the RoI with a determined value in the set of values. The set of values for the system performance metric is determined based on a plurality of data samples for a set of RoIs which include at least one of building height, terrain height, foliage height, clutter data that classifies land cover, line-of-sight indication data, antenna height, and ground truth data for the system performance metric.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 28, 2020
    Inventors: Hao Chen, Vishnu Ratnam, Young-Han Nam, Joonyoung Cho, Jianzhong Zhang
  • Patent number: 10652002
    Abstract: A user equipment (UE) for receiving resource information is provided. The UE receives, from a base station (BS), a synchronization signal/physical broadcast channel (SS/PBCH) including a master information block (MIB) and SystemInformationBlockType1 (SIB1) including a first SS/PBCH burst set composition indicator (ssb-PositionsInBurst) that indicates indexes of SS/PBCH blocks for which the UE does not receive other signals or channels in resource elements (REs) that overlap with REs corresponding to the SS/PBCH blocks. The UE further receives a set of higher layer parameters that includes a second ssb-PositionsInBurst indicating the indexes of the SS/PBCH blocks for which the UE does not receive the other signals or channels in the REs that overlap with the REs corresponding to the SS/PBCH blocks, and determines the first ssb-PositionsInBurst and the second ssb-PositionsInBurst for receiving resource information.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: May 12, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Young-Han Nam
  • Publication number: 20200137751
    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: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Inventors: Young-Han Nam, Sudhir Ramakrishna, Li Guo, Boon Loong Ng
  • Publication number: 20200112352
    Abstract: A method of a base station (BS) in a wireless communication system is provided, The method comprises: receiving, from a user equipment (UE), a 1st layer sounding reference signal (SRS); arranging the 1st layer SRS based on two antenna polarizations of an antenna system of the BS; identifying a dominant direction of a channel based on the 1st layer SRS; identifying a coefficient between two antenna polarizations based on the 1st layer SRS; constructing a 2-layer channel matrix based on the identified dominant direction and the identified coefficient; and transmitting, to the UE, a downlink signal via the antenna system based on the constructed 2-layer channel matrix.
    Type: Application
    Filed: October 7, 2019
    Publication date: April 9, 2020
    Inventors: Yeqing Hu, Ahmed Ibrahim, Young-Han Nam, Jianzhong Zhang, Eun Yong Kim
  • Publication number: 20200099434
    Abstract: A method of a base station (BS) for channel state information (CSI) estimation in a wireless communication system is provided. The method of BS comprises: receiving, from a user equipment (UE), a sounding reference signal (SRS) for the CSI estimation; determining whether the received SRS is measurable for the CSI estimation; initializing a set of uplink parameters based on a result of the determination; updating the set of uplink parameters based on SRS history stored in a buffer; and performing, using a channel prediction model and channel reciprocity, the downlink CSI estimation based on the updated parameters.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 26, 2020
    Inventors: Rui Wang, Junmo Sung, Jianzhong Zhang, Young-Han Nam, Shouvik Ganguly
  • Publication number: 20200084007
    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: Application
    Filed: November 11, 2019
    Publication date: March 12, 2020
    Inventors: Lingjia Liu, Young-Han Nam, Jianzhong Zhang
  • Publication number: 20200077398
    Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a data rate higher than that of the 4G system. A method by a terminal in a wireless communication system according to the present disclosure includes receiving a first message comprising first information indicating a number of symbols in an uplink pilot time slot (UpPTS) region, identifying at least one symbol for transmitting a sounding reference signal (SRS) based on the first information, and transmitting the SRS.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 5, 2020
    Inventors: Hyunil YOO, Young Han NAM, Taeyoung KIM, Jeehwan NOH, Keonkook LEE, Suryong JEONG
  • Patent number: 10582486
    Abstract: A user equipment (UE) for receiving control information in a wireless communication system includes a transceiver configured to receive a synchronization signal/physical broadcasting channel (SS/PBCH) block of an index i from a BS, wherein SS/PBCH block comprises a PBCH carrying master information block (MIB). The UE includes a processor configured to for the SS/PBCH block of the index i, determine a slot index n0 as a sum of an offset value and ?i*M?. The offset value is determined based on a first value O determined according to the index indicated in the MIB, wherein the index configures PDCCH monitoring occasions, and a second value ? indicated in the MIB, wherein the second value ? represents a subcarrier spacing configuration, wherein M is a positive number determined according to the index indicated in the MIB, and cause the transceiver to decode a PDCCH in the slot index n0.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: March 3, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Youngbum Kim, Taehyoung Kim, Hongbo Si, Aris Papasakellariou
  • Publication number: 20200059955
    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.
    Type: Application
    Filed: October 24, 2019
    Publication date: February 20, 2020
    Inventors: Md. Saifur Rahman, Eko Onggosanusi, Young-Han Nam, Yang Li
  • Publication number: 20200059956
    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.
    Type: Application
    Filed: October 24, 2019
    Publication date: February 20, 2020
    Inventors: Md. Saifur Rahman, Eko Onggosanusi, Young-Han Nam, Yang Li
  • Patent number: 10567060
    Abstract: Methods and apparatus for vector quantization of feedback and processing of vector quantized feedback components. A method of operating a UE for vector quantization of feedback includes identifying a grouping method for grouping channel coefficients for vector quantization and identifying a vector quantization codebook for vector quantization of grouped vectors based on one or more control signals received from an eNB. The method includes computing channel coefficients based on at least one channel measurement and grouping the computed channel coefficients according to the identified grouping method to form a set of vectors. The method also includes performing vector quantization of the vectors using the identified vector quantization codebook and processing the quantized vectors into one or more feedback signals. Additionally, the method includes transmitting the one or more feedback signals to the eNB.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: February 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Md. Saifur Rahman, Eko Onggosanusi, Young-Han Nam, Yang Li
  • Publication number: 20200052863
    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: Application
    Filed: October 17, 2019
    Publication date: February 13, 2020
    Inventors: Eko Onggosanusi, Hongbo Si, Young-Han Nam
  • Publication number: 20200053633
    Abstract: Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.
    Type: Application
    Filed: October 17, 2019
    Publication date: February 13, 2020
    Inventors: Boon Loong Ng, Krishna Sayana, Young-Han Nam, Jianzhong Zhang
  • Publication number: 20200045658
    Abstract: A method of user equipment (UE) for system information transmission in a wireless communication system is provided.
    Type: Application
    Filed: October 9, 2019
    Publication date: February 6, 2020
    Inventors: Young-Han Nam, Vikram Chandrasekhar, Li Guo, Hao Chen
  • Publication number: 20200028543
    Abstract: A subscriber station configured to communicate with one or more base stations or other transmission points (TPs) in a wireless communication network is configured to receive, from the network, information associated with one or more of the TPs that are candidates for coordinated multipoint (CoMP) transmission with the subscriber station, to measure a plurality of channel quality values for each of the one or more TPs, and to report the measured channel quality values to the network.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Inventors: Boon Loong Ng, Gerardus Johannes Petrus van Lieshout, Young-Han Nam, Himke van der Velde, Jianzhong Zhang, Ying Li, Younsun Kim, Krishna Sayana
  • Patent number: 10536969
    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.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: January 14, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Md. Saifur Rahman, Eko Onggosanusi, Young-Han Nam, Yang Li
  • Publication number: 20200014454
    Abstract: A method of user equipment (UE) for beam management in a wireless communication system comprises receiving, from a base station (BS), at least two groups of Tx beams comprising transmit (Tx) signals generated from different antenna panels, the at least two groups of Tx beams transmitted through reference signals; receiving, from the BS, configuration information including a selection constraint for the at least two groups of Tx beams; measuring, based on the configuration information, at least one beam from each of the at least two groups of beams; selecting at least one Tx beam from each of the at least two groups and a same Rx beam set as an Rx beam corresponding to respective selected Tx beams; and transmitting, to the BS, a reporting message including information of the selected Tx beams and the selected same Rx beam set corresponding to the Rx beam.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 9, 2020
    Inventors: Li Guo, Young-Han Nam, Yang Li, Boon Ng
  • Patent number: 10524237
    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: March 3, 2017
    Date of Patent: December 31, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Sudhir Ramakrishna, Li Guo, Boon Loong Ng
  • Patent number: RE47879
    Abstract: A base station and mobile station communicate using a multiple input multiple output (MIMO) communication. The base station includes a two dimensional (2D) antenna array comprising a number N of antenna elements configured in a 2D grid. The 2D antenna array is configured to communicate with at least one subscriber station. The base station also includes a controller configured to transmit N channel-state-information reference-signal (CSI-RS) antenna ports (APs) associated with each of the N antenna elements. The subscriber station includes an antenna array configured to communicate with at least one base station. The subscriber station also includes processing circuitry configured receives physical downlink shared channels (PDSCHs) from a 2D active antenna array at the at least one base station. The 2D active antenna array includes a number N antenna elements. The processing circuitry further configured to estimate a full CSI associated with the N antenna elements.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: February 25, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Jin-Kyu Han