Patents by Inventor Junsung Lim

Junsung Lim 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: 11937328
    Abstract: This disclosure relates to techniques for a wireless device to perform millimeter wavelength communication with increased reliability and power efficiency using sensor inputs. The sensor inputs may include motion, rotation, or temperature measurements, among various possibilities. The sensor inputs may be used when performing beamforming tracking, antenna configuration, transmit and receive chain measurements and selection, and/or in any of various other possible operations.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: March 19, 2024
    Assignee: Apple Inc.
    Inventors: Wei Zhang, Pengkai Zhao, Shiva Krishna Narra, Sriram Subramanian, Madhukar K. Shanbhag, Sanjeevi Balasubramanian, Junsung Lim, Jia Tang, Galib A. Mohiuddin, Yu-Lin Wang, Zhu Ji, Johnson O. Sebeni
  • Patent number: 11695461
    Abstract: Apparatuses, systems, and methods for a wireless device to encode channel state information (CSI), e.g., enhanced type II CSI. A common frequency basis may be selected. Spatial-frequency coefficients, frequency basis related information, and/or spatial basis related information may be determined. At least a portion of the coefficients and/or information may be encoded in a CSI report.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: July 4, 2023
    Assignee: Apple Inc.
    Inventors: Sai Sravan Bharadwaj Karri, Swaminathan Balakrishnan, Junsung Lim, Haitong Sun, Johnson O. Sebeni, Faraz Faheem
  • Patent number: 11690129
    Abstract: Apparatuses, systems, and methods for a base station to perform a method construct dynamic hierarchical sub-configurations of bandwidth parts (BWPs) for use in a connected mode discontinuous reception (CDRX) communication session with a user equipment (UE) device. The base station may configure a first BWP at a baseband frequency associated with the CDRX communication session as a default BWP, a second BWP with a wider bandwidth than the first BWP as a transmission BWP, and one or more third BWPs as resting BWPs. The transmission BWP and the one or more resting BWPs may be configured to periodically override the default BWP as the active BWP for a predetermined number of CDRX cycles. The transmission BWP may be utilized, when activated to perform data transmission by UE device, and the one or more resting BWPs may be utilized, when activated, for performing channel measurements.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: June 27, 2023
    Assignee: Apple Inc.
    Inventors: Wei Zhang, Yuchul Kim, Junsung Lim, Haitong Sun, Wei Zeng, Sami M. Almalfouh, Yang Li, Zhu Ji, Dawei Zhang, Johnson O. Sebeni
  • Publication number: 20230118771
    Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including a user equipment device (UE) exchanging communications with a base station to determine one or more scheduling profiles, such as one or more scheduling-power profiles, where a scheduling-power profile may specify one or more parameters associated with UE communication behavior, e.g., one or more constraints on UE communication behavior and/or slot scheduling of UE communications. In addition, the method may include the UE receiving a slot configuration schedule from the base station. The slot configuration schedule may be based on at least one scheduling-power profile of the one or more scheduling-power profiles. Further, the method may include the UE performing communications with the base station based on the at least one scheduling-power profile.
    Type: Application
    Filed: December 19, 2022
    Publication date: April 20, 2023
    Inventors: Yuchul Kim, Wei Zhang, Sam M. Almalfouh, Junsung Lim, Haitong Sun, Wei Zeng, Dawei Zhang, Zhu Ji, Yang Li, Johnson O. Sebeni
  • Patent number: 11589305
    Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including a user equipment device (UE) exchanging communications with a base station to determine one or more scheduling profiles, such as one or more scheduling-power profiles, where a scheduling-power profile may specify one or more parameters associated with UE communication behavior, e.g., one or more constraints on UE communication behavior and/or slot scheduling of UE communications. In addition, the method may include the UE receiving a slot configuration schedule from the base station. The slot configuration schedule may be based on at least one scheduling-power profile of the one or more scheduling-power profiles. Further, the method may include the UE performing communications with the base station based on the at least one scheduling-power profile.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: February 21, 2023
    Assignee: Apple Inc.
    Inventors: Yuchul Kim, Wei Zhang, Sami M. Almalfouh, Junsung Lim, Haitong Sun, Wei Zeng, Dawei Zhang, Zhu Ji, Yang Li, Johnson O. Sebeni
  • Patent number: 11558929
    Abstract: This disclosure relates to performing cellular communication using a control information monitoring framework. A wireless device may monitor a control channel for control information according to a first periodic pattern. According to the first periodic pattern, the wireless device may monitor the control channel in a specified slot during each period of the first periodic pattern. Each period of the first periodic pattern may include multiple slots. The wireless device may receive control information during a first slot. The first slot may be a specified slot according to the first periodic pattern. The control information received during the first slot may schedule a data communication. The wireless device may monitor the control channel for control information in at least one slot that is not specified according to the first periodic pattern based at least in part on receiving control information during a specified slot according to the first periodic pattern.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: January 17, 2023
    Assignee: Apple Inc.
    Inventors: Yuchul Kim, Junsung Lim, Wei Zeng, Haitong Sun, Wei Zhang, Galib A. Mohiuddin, Sami M. Almalfouh, Yang Li, Zhu Ji, Tianyan Pu, Dawei Zhang, Johnson O. Sebeni
  • Publication number: 20220191972
    Abstract: This disclosure relates to performing cellular communication using a control information monitoring framework. A wireless device may monitor a control channel for control information according to a first periodic pattern. According to the first periodic pattern, the wireless device may monitor the control channel in a specified slot during each period of the first periodic pattern. Each period of the first periodic pattern may include multiple slots. The wireless device may receive control information during a first slot. The first slot may be a specified slot according to the first periodic pattern. The control information received during the first slot may schedule a data communication. The wireless device may monitor the control channel for control information in at least one slot that is not specified according to the first periodic pattern based at least in part on receiving control information during a specified slot according to the first periodic pattern.
    Type: Application
    Filed: March 1, 2022
    Publication date: June 16, 2022
    Inventors: Yuchul Kim, Junsung Lim, Wei Zeng, Haitong Sun, Wei Zhang, Galib A. Mohiuddin, Sami M. Almalfouh, Yang Li, Zhu Ji, Tianyan Pu, Dawei Zhang, Johnson O. Sebeni
  • Patent number: 11304261
    Abstract: This disclosure relates to performing cellular communication using a control information monitoring framework. A wireless device may monitor a control channel for control information according to a first periodic pattern. According to the first periodic pattern, the wireless device may monitor the control channel in a specified slot during each period of the first periodic pattern. Each period of the first periodic pattern may include multiple slots. The wireless device may receive control information during a first slot. The first slot may be a specified slot according to the first periodic pattern. The control information received during the first slot may schedule a data communication. The wireless device may monitor the control channel for control information in at least one slot that is not specified according to the first periodic pattern based at least in part on receiving control information during a specified slot according to the first periodic pattern.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: April 12, 2022
    Assignee: Apple Inc.
    Inventors: Yuchul Kim, Junsung Lim, Wei Zeng, Haitong Sun, Wei Zhang, Galib A. Mohiuddin, Sami M. Almalfouh, Yang Li, Zhu Ji, Tianyan Pu, Dawei Zhang, Johnson O. Sebeni
  • Patent number: 11284428
    Abstract: A device may monitor a first search space (SS) corresponding to an active first component carrier (CC), and detect first control information (CI) that identifies an inactive second CC. In response to receiving the first CI, the device may activate the inactive second CC to make it an active second CC. The device may also set up a second SS corresponding to the active second CC, and may monitor the second SS to schedule the active second CC and receive a physical data channel. The first CI may also include additional scheduling information and a start time for reception of the physical data channel. The device may operate in a first bandwidth part (BWP) according to a first communication configuration associated with the first bandwidth part, and may switch to operating in a second BWP and to operating according to a second communication configuration associated with the second BWP.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: March 22, 2022
    Assignee: Apple Inc.
    Inventors: Junsung Lim, Wei Zhang, Sami M. Almalfouh, Johnson O. Sebeni, Yuchul Kim, Wei Zeng, Haitong Sun, Pengkai Zhao, Ping Wang, Dawei Zhang, Fangli Xu, Yuqin Chen, Haijing Hu
  • Patent number: 11228935
    Abstract: A base station and mobile device (UE) may coordinate transmission of reference signals and reception of corresponding channel state information (CSI) reports. If a periodic reference signal is scheduled for transmission outside the on-duration period of the UE, even if the reference signal corresponds to a periodic CSI report scheduled to be transmitted by the UE during the on-duration period, the base station may not transmit the periodic reference signal, thereby allowing the UE not to prematurely exit a low-power state. The base station may instead transmit an aperiodic reference signal at a specified point in time later than the scheduled transmission of the periodic reference signal. The UE may receive the aperiodic reference signal and either transmit the periodic CSI report or an aperiodic CSI report in response, depending on how close to the start of the on-duration period the transmission of the periodic CSI report is scheduled.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: January 18, 2022
    Assignee: Apple Inc.
    Inventors: Junsung Lim, Yuchul Kim, Wei Zeng, Wei Zhang, Johnson O. Sebeni, Haitong Sun, Dawei Zhang
  • Publication number: 20210360674
    Abstract: A device may monitor a first search space (SS) corresponding to an active first component carrier (CC), and detect first control information (CI) that identifies an inactive second CC. In response to receiving the first CI, the device may activate the inactive second CC to make it an active second CC. The device may also set up a second SS corresponding to the active second CC, and may monitor the second SS to schedule the active second CC and receive a physical data channel. The first CI may also include additional scheduling information and a start time for reception of the physical data channel. The device may operate in a first bandwidth part (BWP) according to a first communication configuration associated with the first bandwidth part, and may switch to operating in a second BWP and to operating according to a second communication configuration associated with the second BWP.
    Type: Application
    Filed: August 10, 2018
    Publication date: November 18, 2021
    Inventors: Junsung Lim, Wei Zhang, Sami M. Almalfouh, Johnson O. Sebeni, Yuchul Kim, Wei Zeng, Haitong Sun, Pengkai Zhao, Ping Wang, Dawei Zhang, Fangli Xu, Yuqin Chen, Haijing Hu
  • Publication number: 20210289583
    Abstract: This disclosure relates to techniques for a wireless device to perform millimeter wavelength communication with increased reliability and power efficiency using sensor inputs. The sensor inputs may include motion, rotation, or temperature measurements, among various possibilities. The sensor inputs may be used when performing beamforming tracking, antenna configuration, transmit and receive chain measurements and selection, and/or in any of various other possible operations.
    Type: Application
    Filed: March 8, 2021
    Publication date: September 16, 2021
    Inventors: Wei Zhang, Pengkai Zhao, Shiva Krishna Narra, Sriram Subramanian, Madhukar K. Shanbhag, Sanjeevi Balasubramanian, Junsung Lim, Jia Tang, Galib A. Mohiuddin, Yu-Lin Wang, Zhu Ji, Johnson O. Sebeni
  • Patent number: 11096079
    Abstract: This disclosure relates to performing cell measurements using configured reference signals while in an inactive state in a cellular communication system. A wireless device may receive an indication of reference signal resources configured for use by the wireless device in the inactive state from a cellular base station that provides a serving cell to the wireless device. The reference signal resources may include channel state information reference signal resources that are aligned in time and/or frequency with a control resource set provided for a wakeup occasion of the wireless device while in the inactive state. The wireless device may perform cell measurements using the indicated reference signal resources while in the inactive state.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: August 17, 2021
    Assignee: Apple Inc.
    Inventors: Wei Zhang, Haitong Sun, Fangli Xu, Pengkai Zhao, Junsung Lim, Wei Zeng, Haijing Hu, Sami M. Almalfouh, Dawei Zhang, Johnson O. Sebeni
  • Publication number: 20210234599
    Abstract: Apparatuses, systems, and methods for a wireless device to encode channel state information (CSI), e.g., enhanced type II CSI. A common frequency basis may be selected. Spatial-frequency coefficients, frequency basis related information, and/or spatial basis related information may be determined. At least a portion of the coefficients and/or information may be encoded in a CSI report.
    Type: Application
    Filed: April 13, 2021
    Publication date: July 29, 2021
    Inventors: Sai Sravan Bharadwaj Karri, Swaminathan Balakrishnan, Junsung Lim, Haitong Sun, Johnson O. Sebeni, Faraz Faheem
  • Publication number: 20210211972
    Abstract: A user equipment (UE) supports communication over a first (lower) frequency range and a second (higher) frequency range. The UE determines an extent of preference of the second frequency range over the first frequency range, e.g., based on one or more of the following: sensor measurements; physical channel measurements; battery conditions; weather conditions; voice call activity; indoor/outdoor/in-car status; learned relationships between previous location-time conditions and performance on the second frequency range; etc. The UE device may control search activity and/or measurement activity on the second frequency range based on the preference extent, e.g., by controlling rates of repetition of search and/or measurement on the second frequency range, or by adding a measurement bias to a measurement reporting threshold, or by adding a delay to a measurement reporting time for a measurement, or by disabling search and measurement on the second frequency range.
    Type: Application
    Filed: October 29, 2020
    Publication date: July 8, 2021
    Inventors: Wei Zhang, Alosious Pradeep Prabhakar, Pengkai Zhao, Vijay Venkataraman, Junsung Lim, Zhu Ji, Johnson O. Sebeni, Yu-Lin Wang, Galib A. Mohiuddin, Sriram Subramanian, Shiva Krishna Narra, Madhukar K. Shanbhag, Sanjeevi Balasubramanian, Daniel A. West, Rohit R. Matolia
  • Patent number: 10992360
    Abstract: Apparatuses, systems, and methods for a wireless device to encode channel state information (CSI), e.g., enhanced type II CSI. A common frequency basis may be selected. Spatial-frequency coefficients, frequency basis related information, and/or spatial basis related information may be determined. At least a portion of the coefficients and/or information may be encoded in a CSI report.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: April 27, 2021
    Assignee: Apple Inc.
    Inventors: Sai Sravan Bharadwaj Karri, Swaminathan Balakrishnan, Junsung Lim, Haitong Sun, Johnson O. Sebeni, Faraz Faheem
  • Patent number: 10952144
    Abstract: This disclosure relates to techniques for opportunistically depowering receiver chains of a wireless device. Based on received control information, a device may determine a depowering time. For example, the device may determine a minimum number of symbols of the payload channel that will provide an effective spectral efficiency less than a supportable spectral efficiency of the payload channel. The depowering time may be determined as a time upon receipt of the determined minimum number of symbols. The device may determine whether to perform a depowering procedure, based upon the determined depowering time. In response to determining to perform the depowering procedure, the device may depower an RF receiver of the device at the depowering time, wherein the depowering time is prior to the end of the payload channel. The device may decode the payload channel based on a portion of the payload channel received by the RF receiver.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 16, 2021
    Assignee: Apple Inc.
    Inventors: Junsung Lim, Youngjae Kim, Johnson O. Sebeni
  • Publication number: 20210045183
    Abstract: Apparatuses, systems, and methods for a base station to perform a method construct dynamic hierarchical sub-configurations of bandwidth parts (BWPs) for use in a connected mode discontinuous reception (CDRX) communication session with a user equipment (UE) device. The base station may configure a first BWP at a baseband frequency associated with the CDRX communication session as a default BWP, a second BWP with a wider bandwidth than the first BWP as a transmission BWP, and one or more third BWPs as resting BWPs. The transmission BWP and the one or more resting BWPs may be configured to periodically override the default BWP as the active BWP for a predetermined number of CDRX cycles. The transmission BWP may be utilized, when activated to perform data transmission by UE device, and the one or more resting BWPs may be utilized, when activated, for performing channel measurements.
    Type: Application
    Filed: October 13, 2020
    Publication date: February 11, 2021
    Inventors: Wei Zhang, Yuchul Kim, Junsung Lim, Haitong Sun, Wei Zeng, Sami M. Almalfouh, Yang Li, Zhu Ji, Dawei Zhang, Johnson O. Sebeni
  • Patent number: 10856358
    Abstract: Apparatuses, systems, and methods for a base station to perform a method construct dynamic hierarchical sub-configurations of bandwidth parts (BWPs) for use in a connected mode discontinuous reception (CDRX) communication session with a user equipment (UE) device. The base station may configure a first BWP at a baseband frequency associated with the CDRX communication session as a default BWP, a second BWP with a wider bandwidth than the first BWP as a transmission BWP, and one or more third BWPs as resting BWPs. The transmission BWP and the one or more resting BWPs may be configured to periodically override the default BWP as the active BWP for a predetermined number of CDRX cycles. The transmission BWP may be utilized, when activated to perform data transmission by UE device, and the one or more resting BWPs may be utilized, when activated, for performing channel measurements.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: December 1, 2020
    Assignee: Apple Inc.
    Inventors: Wei Zhang, Yuchul Kim, Junsung Lim, Haitong Sun, Wei Zeng, Sami M. Almalfouh, Yang Li, Zhu Ji, Dawei Zhang, Johnson O. Sebeni
  • Publication number: 20200367087
    Abstract: A base station and mobile device (UE) may coordinate transmission of reference signals and reception of corresponding channel state information (CSI) reports. If a periodic reference signal is scheduled for transmission outside the on-duration period of the UE, even if the reference signal corresponds to a periodic CSI report scheduled to be transmitted by the UE during the on-duration period, the base station may not transmit the periodic reference signal, thereby allowing the UE not to prematurely exit a low-power state. The base station may instead transmit an aperiodic reference signal at a specified point in time later than the scheduled transmission of the periodic reference signal. The UE may receive the aperiodic reference signal and either transmit the periodic CSI report or an aperiodic CSI report in response, depending on how close to the start of the on-duration period the transmission of the periodic CSI report is scheduled.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Inventors: Junsung Lim, Yuchul Kim, Wei Zeng, Wei Zhang, Johnson O. Sebeni, Haitong Sun, Dawei Zhang