Patents by Inventor Yeong-Sun Hwang

Yeong-Sun Hwang 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: 20220052727
    Abstract: Apparatuses, systems, and methods for multi-TRP by a UE, including out of order delivery of PDSCH, PUSCH, and/or DL ACK/NACK. The UE may receive, from a base station, a configuration that may include multiple control resource set (CORESET) pools and each CORESET pool may be associated with an index value. The UE may determine that at least two DCIs of the multiple DCIs end at a common symbol and determine, based on one or more predetermined rules, when the UE may be scheduled to receive PDSCHs, transmit PUSCHs, and/or transmit ACK/NACKs from CORESETs associated with the at least two DCIs.
    Type: Application
    Filed: February 12, 2020
    Publication date: February 17, 2022
    Inventors: Haitong Sun, Yushu Zhang, Wei Zeng, Dawei Zhang, Yuchul Kim, Hong He, Weidong Yang, Chunhai Yao, Chunxuan Ye, Oghenekome Oteri, Ismael Gutierrez Gonzaiez, Ghaith N Hattab, Jie Cui, Yang Tang, Haijing Hu, Fangli Xu, Zhibin Wu, Yuqin Chen, Yeong-Sun Hwang
  • Patent number: 11165495
    Abstract: Methods and apparatus for communicating in a wireless network including apparatus comprising transceiver circuitry to send and receive data in a plurality of time periods, defined by a time division duplex (TDD) time grid, to another entity, the plurality of time periods corresponding to a plurality of orthogonal frequency division multiplexing (OFDM) symbols and the transceiver circuitry being operable to switch from receive mode to transmit mode and/or from transmit mode to receive mode according to a flexible uplink and downlink allocation of the plurality of time periods; and baseband circuitry coupled to the transceiver circuitry to control the transceiver circuitry to switch during a switching interval embedded within a time period corresponding to an OFDM symbol of the plurality of OFDM symbols.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: November 2, 2021
    Assignee: Apple Inc.
    Inventors: Sabine Roessel, Holger Neuhaus, Yeong-Sun Hwang, Bertram Gunzelmann, Andreas Menkhoff, Elmar Wagner, Jong-Kae Fwu, Xiangyang Zhuang
  • Publication number: 20210328636
    Abstract: Example embodiments are directed towards beam formation matching for communications between a receiver and transmitter in a multiple beam Multiple Input Multiple Output (MIMO) system.
    Type: Application
    Filed: December 10, 2020
    Publication date: October 21, 2021
    Inventors: Yeong-Sun HWANG, Yuan ZHU, Yushu ZHANG, Huaning NIU, Wenting CHANG
  • Publication number: 20210282034
    Abstract: The disclosure relates to a mobile communication device circuitry, comprising: a radio receiver configured to receive a plurality of channel state information (CSI) measurement requests, each CSI measurement request triggering a CSI measurement; and a processor configured to process the plurality of CSI measurement triggers within a CSI reporting period according to a CSI computation scheduling which is based on a multi-service priority queue of multi-size jobs, each job corresponding to a respective CSI measurement trigger.
    Type: Application
    Filed: May 11, 2017
    Publication date: September 9, 2021
    Inventors: Yeong-Sun Hwang, Ziyang Ju, Anchit Malhotra
  • Publication number: 20210266058
    Abstract: This disclosure relates to an antenna array circuitry for analog beamforming, the antenna array circuitry comprising: a plurality of antenna elements, wherein each antenna element is configured to receive a respective analog signal (r(1,t), r(2,t), r(N,t)), wherein the plurality of antenna elements is adjustable based on a code-word, wherein the code-word comprises respective phase configurations (?p(1), ?p(2), ?p(N)) of the plurality of antenna elements, wherein the code-word is based on a superposition of a predetermined set of basic code-words, wherein each basic code-word associates with a corresponding sub-beam, wherein a main radiation lobe of the corresponding sub-beam points in a predefined spatial direction.
    Type: Application
    Filed: July 31, 2019
    Publication date: August 26, 2021
    Inventors: Zhibin YU, Ansgar SCHERB, Andre JANSSEN, Bertram GUNZELMANN, Yeong-Sun HWANG, Holger NEUHAUS
  • Publication number: 20210258886
    Abstract: A method for operating user equipment (UE) includes generating, by the UE, a transmit precoding matrix indicator (TPMI) list including one or more TPMIs selected from a set of available TPMIs stored at a base station (BS). Data indicative of the TPMI list is transmitted to the BS. An index of the TPMI list is transmitted to the BS. Downlink control information (DCI) is received from the BS including an indication of at least one TPMI from the TPMI list based on the index. Uplink data is transmitted to the BS on a physical uplink shared channel (PUSCH) using the at least one TPMI.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 19, 2021
    Inventors: Haitong Sun, Yushu Zhang, Wei Zeng, Dawei Zhang, Ismael Gutierrez Gonzalez, Ghaith N. Hattab, Yuchul Kim, Hong He, Weidong Yang, Chunxuan Ye, Chunhai Yao, Oghenekome Oteri, Yeong-Sun Hwang
  • Publication number: 20210211329
    Abstract: An apparatus configured to be employed in a gNodeB associated with a new radio (NR) communication system is disclosed. The apparatus comprises one or more processors configured to configure partial spatial reference information associated with at least one sounding reference signal (SRS) resource set of one or more SRS resource sets associated with a user equipment (UE), that forms a select SRS resource set. In some embodiments, the partial spatial reference information comprises information on a partial spatial reference resource configured for one or more SRS resources associated with the select SRS resource set, to be utilized by the UE to generate one or more SRS transmit beam patterns for transmitting the one or more SRS resources, respectively, such that the one or more SRS transmit beam patterns are in a spatial neighborhood of a beam pattern associated with the configured partial spatial reference resource.
    Type: Application
    Filed: September 16, 2019
    Publication date: July 8, 2021
    Inventors: Zhibin Wu, Yushu Zhang, Alexei Davydov, Seunghee Han, Yeong-Sun Hwang
  • Publication number: 20210175919
    Abstract: A circuit arrangement including one or more processors configured to: detect a presence of one or more human object proximities based on sensor data; identify one or more coverage sectors of one or more antenna arrays, operably coupled to the one or more processors, in response to the detected presence of the one or more human object proximities; determine whether radio waves within the one or more identified coverage sectors satisfy a transmit power criteria; select one or more candidate coverage sectors of the one or more antenna arrays based the one or more identified coverage sectors; and determine at least one radio link quality for the radio waves of the one or more candidate coverage sectors.
    Type: Application
    Filed: September 14, 2020
    Publication date: June 10, 2021
    Inventors: Biljana BADIC, Michael GLIK, Bertram GUNZELMANN, Tom HAREL, Yeong-Sun HWANG, Andre JANSSEN, Jonathan KOSLOFF, Sebastian MITELBERG, Markus Dominik MUECK, Bernhard RAAF, Jianqiang RAO, Nir TISHBI, Zhibin YU
  • Patent number: 11025367
    Abstract: A signal processing device includes a determiner configured to determine if a codeword included in a data signal corresponds to a reference codeword included in a first set of reference codewords or a second set of reference codewords; a first estimator configured to estimate a first channel quality metric value for the data signal based on a first channel quality metric, if the codeword corresponds to a reference codeword included in the first set of reference codewords, wherein the first channel quality value is smaller than a reference channel quality metric value for the data signal, wherein the reference channel quality metric value for the data signal results from a channel quality estimation based on a predetermined channel quality metric; and a second estimator configured to estimate a second channel quality metric value for the data signal based on a second channel quality metric, if the codeword corresponds to a reference codeword included in the second set of reference codewords, wherein the second
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: June 1, 2021
    Assignee: Intel IP Corporation
    Inventors: Yeong-Sun Hwang, Franz Eder, Matthias Muennich, Ziyang Ju, Carlo Tosetti, Anchit Malhotra
  • Patent number: 11012132
    Abstract: A method and apparatus for three-dimensional beamforming, which include an estimation of a channel spatial coherence for a beam space of a device based on a plurality of non-precoded reference signals such that the beam space includes a plurality of beam subspaces based on the estimated channel spatial coherence and each of the plurality of beam subspaces include a beam direction representative of a respective beam subspace of the plurality of beam subspaces. Furthermore, a selection a beam subspace of the plurality of beam subspaces based on a channel quality metric of the beam direction that is representative of the beam subspace is included.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: May 18, 2021
    Assignee: Apple Inc.
    Inventors: Yeong-Sun Hwang, Franz Eder, Ziyang Ju
  • Publication number: 20210099222
    Abstract: A Multiple-Input-Multiple-Output (MIMO) antenna array configuration is described in one example comprising a plurality of Radio Frequency (RF) chains, a plurality of antenna elements, and a plurality of phase shifters, wherein the antenna elements and phase shifters form a plurality of antenna arrays, and coupled to the RF chains, and the number of antenna arrays is larger than the number of RF chains.
    Type: Application
    Filed: December 14, 2020
    Publication date: April 1, 2021
    Inventors: Yeong-Sun Hwang, Yuan Zhu, Elmar Wagner
  • Patent number: 10911199
    Abstract: A wireless device includes a digital receiver configured to receive data via an antenna array, and to determine a load metric based on a load of subcarriers around reference subcarrier signals of a reference signal, and a controller configured to compare the load metric to a load threshold to determine whether the load of the subcarriers is less than a predefined level, and if the load of the subcarriers is less than the predefined level, identify at least one time point where the reference signal repeats itself during a symbol period, and control the antenna array to switch among the plurality of antenna beamforming patterns based on the at least one time point.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: February 2, 2021
    Assignee: INTEL CORPORATION
    Inventors: Zhibin Yu, Bertram Gunzelmann, Yeong-Sun Hwang, Andre Janssen, Holger Neuhaus
  • Patent number: 10880047
    Abstract: An apparatus, a system and a method use a class of dynamic switching mechanisms with multiple HARQ block sizes to reduce HARQ retransmission overhead while limiting the increase of HARQ ACK feedback overhead. The apparatus includes a first processing unit configured to estimate an intra-subframe fluctuation level of per-codeblock errors; a second processing unit configured to: map the intra-subframe fluctuation level to a hybrid automatic repeat request (HARQ) block size; determine a HARQ acknowledgement (ACK) format based at least in part on the HARQ block size; indicate the selected HARQ block size to a data transmitter; and generate a HARQ ACK. Per-code block link adaptation can be used to support multiple MCSs for a single user in each subframe with fine time-frequency granularity, with low-bandwidth signaling overhead and without a complete dependency on reference signal (RS) structure.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: December 29, 2020
    Assignee: INTEL IP CORPORATION
    Inventors: Yeong-Sun Hwang, Holger Neuhaus, Huaning Niu, Wenting Chang, Sabine Roessel
  • Patent number: 10873385
    Abstract: In various aspects, a Multiple-Input-Multiple-Output (MIMO) antenna array configuration, a wireless communication device, and a method for receiving multiple beamformed signals are described herein. According to at least one aspect, a MIMO antenna array configuration is described to include a plurality of Radio Frequency (RF) chains, a plurality of antenna elements, and a plurality of phase shifters. In some aspects, the antenna elements and phase shifters form a plurality of antenna arrays. The number of antenna arrays is, in at least one aspect, larger than the number of RF chains.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: December 22, 2020
    Assignee: Apple Inc.
    Inventors: Yeong-Sun Hwang, Yuan Zhu, Elmar Wagner
  • Publication number: 20200396035
    Abstract: A wireless device includes a digital receiver configured to receive data via an antenna array, and to determine a load metric based on a load of subcarriers around reference subcarrier signals of a reference signal, and a controller configured to compare the load metric to a load threshold to determine whether the load of the subcarriers is less than a predefined level, and if the load of the subcarriers is less than the predefined level, identify at least one time point where the reference signal repeats itself during a symbol period, and control the antenna array to switch among the plurality of antenna beamforming patterns based on the at least one time point.
    Type: Application
    Filed: June 14, 2019
    Publication date: December 17, 2020
    Inventors: Zhibin Yu, Bertram Gunzelmann, Yeong-Sun Hwang, Andre Janssen, Holger Neuhaus
  • Patent number: 10868596
    Abstract: A beam formation matching for communications between a receiver (201) and transmitter (101) in a multiple beam Multiple Input Multiple Output (MIMO) system (100) is disclosed.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: December 15, 2020
    Assignee: Apple Inc.
    Inventors: Yeong-Sun Hwang, Yuan Zhu, Yushu Zhang, Huaning Niu, Wenting Chang
  • Publication number: 20200366430
    Abstract: A communication device comprises a receiver including at least two receive antennas and configured to receive at least one reference signal of a plurality of reference signals, each reference signal being transmitted from at least one base station at a predefined reference signal transmission time; a controller configured to switch between at least two receive configurations of the at least two antennas during a reception period of the at least one reference signal; and a signal quality determiner configured to determine a parameter indicative of a first signal quality of the received reference signal for each receive configuration.
    Type: Application
    Filed: December 29, 2017
    Publication date: November 19, 2020
    Inventors: Zhibin YU, Michael RUDER, Holger NEUHAUS, Yeong-Sun HWANG, Bertram GUNZEL-MANN
  • Patent number: 10812125
    Abstract: A communication device includes an evaluator configured to evaluate one or more criteria, wherein a first criterion of the one or more criteria includes detecting an object, a determiner configured to determine one or more beam pairs from a plurality of potential beam pairs to use in communications with a second device based on the evaluation of the one or more criteria and transmit an indication of one or more partner-side beams of a selected beam pair of the one or more beam pairs to the second device, and a beam controller configured to adjust an antenna to communicate with the second device via a device-side beam of the selected beam pair.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: October 20, 2020
    Assignee: Intel Corporation
    Inventors: Biljana Badic, Michael Glik, Bertram Gunzelmann, Tom Harel, Yeong-Sun Hwang, Andre Janssen, Jonathan Kosloff, Sebastian Mitelberg, Markus Dominik Mueck, Bernhard Raaf, Jianqiang Rao, Nir Tishbi, Zhibin Yu
  • Publication number: 20200259561
    Abstract: Methods and apparatus for communicating in a wireless network including apparatus comprising transceiver circuitry to send and receive data in a plurality of time periods, defined by a time division duplex (TDD) time grid, to another entity, the plurality of time periods corresponding to a plurality of orthogonal frequency division multiplexing (OFDM) symbols and the transceiver circuitry being operable to switch from receive mode to transmit mode and/or from transmit mode to receive mode according to a flexible uplink and downlink allocation of the plurality of time periods; and baseband circuitry coupled to the transceiver circuitry to control the transceiver circuitry to switch during a switching interval embedded within a time period corresponding to an OFDM symbol of the plurality of OFDM symbols.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 13, 2020
    Inventors: Sabine Roessel, Holger Neuhaus, Yeong-Sun Hwang, Bertram Gunzelmann, Andreas Menkhoff, Elmar Wagner, Jong-Kae Fwu, Xiangyang Zhuang
  • Patent number: 10707946
    Abstract: A method and apparatus for receive beam-forming in an analog domain. A user equipment may perform channel estimation for obtaining a set of channel responses for a plurality of antennas of the UE. The UE may determine a beamforming codeword for receive beamforming based on the set of channel responses. The UE may apply a training codeword to the received signal in analog domain. The training codeword includes phase adjustment coefficients for each antenna and a different training codeword may be applied for each channel observation. The UE may measure a metric for at least one candidate codeword based on the set of channel responses and determine the beamforming codeword based on the metric.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: July 7, 2020
    Assignee: Intel IP Corporation
    Inventors: Michael Ruder, Yeong-Sun Hwang, Zhibin Yu, Holger Neuhaus, Tom Harel, Rajarajan Balraj, Matthias Malkowski