Patents by Inventor Haitong Sun

Haitong Sun 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: 11102738
    Abstract: Apparatuses, systems, and methods for performing timing synchronization between a base station and a user equipment device within an unlicensed spectrum band. In some scenarios, beamforming tracking may also be performed. Upon determining that a transmission medium within the unlicensed spectrum band is available for transmission, a base station may transmit a plurality of synchronization signal blocks (SSBs), or a plurality of copies of one SSB, with associated remaining minimum system information (RMSI) blocks, within a single time instance within a SSB burst window. The SSBs may be transmitted at different frequency positions and according to distinct beamforming configurations. The SSBs and RMSI blocks may be configured such that a receiving user equipment device may determine the time-domain, and optionally the frequency-domain, position of the SSB and RMSI within the SSB burst window, to allow timing synchronization and optionally beamforming tracking.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: August 24, 2021
    Assignee: Apple Inc.
    Inventors: Wei Zhang, Wei Zeng, Tianyan Pu, Haitong Sun, Jia Tang, Dawei Zhang, Sami M. Almalfouh, Zhu Ji, Johnson O. Sebeni
  • 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: 20210258104
    Abstract: Apparatuses, systems, and methods for a wireless device to disable a HARQ feedback in either a semi-static way or in a dynamic way and to perform HARQ optimization. The wireless device may be configured to receive a first set and a second set of HARQ process numbers, where the first set and the second set of HARQ process numbers correspond to a first set and a second set of HARQ processes respectively, where each HARQ process in the first set of HARQ processes is configured to enable a HARQ feedback, and where each HARQ process in the second set of HARQ processes is configured to disable or enable a HARQ feedback. The wireless device may be configured to receive a grant configuration or a SPS, where the grant configuration or the SPS include a flag indicating whether a HARQ-based retransmission is disabled.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 19, 2021
    Inventors: Chunxuan YE, Dawei ZHANG, Oghenekome OTERI, Wei ZENG, Weidong YANG, Haitong SUN
  • 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: 20210251015
    Abstract: The implementations disclosed provide apparatus, systems, and methods for channel structure construction for a two-step random access channel (RACH) using a new radio (NR) user equipment (UE) wireless device. The wireless device includes one or more computer processors configured to generate a physical RACH (PRACH) preamble mapped to a physical uplink shared channel (PUSCH) resource unit. The PRACH preamble is associated with a preamble group indicating a configuration of the PUSCH. The preamble group has a size indicated by radio resource control (RRC) signaling performed by the wireless device. A message is encoded including the PRACH preamble and a payload carried by the PUSCH. The configuration of the PUSCH includes parameters for decoding the message. The wireless device couples communicatively to a base station using the PUSCH. The message is transmitted to the base station. The base station decodes the message based on the parameters of the PUSCH configuration.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 12, 2021
    Inventors: Chunhai Yao, Haitong Sun, Chunxuan Ye, Dawei Zhang, Fangli Xu, Haijing Hu, Hong He, Jie Cui, Oghenekome Oteri, Weidong Yang, Wei Zeng, Yang Tang, Yuchul Kim, Yuqin Chen, Yushu Zhang
  • 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: 20210226678
    Abstract: A base station may transmit to a device an indication of codebook subset restriction (CBSR), which includes at least a restriction on a frequency basis. The device may receive the indication of CBSR, and may transmit to the base station channel state information (CSI) according to the received indication of CBSR. The indication of CBSR may also include a restriction on a spatial basis and restrict the device from reporting the CSI based on a subset of the frequency basis in addition to the spatial basis per configuration of the base station. The indication of CBSR may include a separately configured maximum allowed amplitude of a weighting coefficient for the spatial basis and the frequency basis, where the weighting coefficient is associated with a column vector of a precoding matrix used by the base station and the device.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 22, 2021
    Inventors: Yu Zhang, Dawei Zhang, Haitong Sun, Wei Zeng, Yuchul Kim
  • Patent number: 11063649
    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 6, 2020
    Date of Patent: July 13, 2021
    Assignee: Apple Inc.
    Inventors: Yu Zhang, Wei Zeng, Haitong Sun, Yuchul Kim, Dawei Zhang
  • Patent number: 11057939
    Abstract: Apparatuses, systems, and methods for transmitting a preamble. The UE may transmit a preamble to a base station in a random access channel (RACH). The RACH may be located in unlicensed spectrum. The bandwidth of the preamble may cover a majority of a nominal channel bandwidth of the RACH. The UE may receive a random access response and establish a connection with the base station in response to receiving the random access response.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: July 6, 2021
    Assignee: Apple Inc.
    Inventors: Wei Zeng, Wei Zhang, Tianyan Pu, Haitong Sun, Yuchul Kim, Dawei Zhang
  • Patent number: 11057790
    Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including performing one or more of periodic beam quality measurements and/or event-based beam quality measurements, determining, based at least in part on one or more of the periodic beam quality measurements and/or the event-based beam quality measurements, a recommended beam quality measurement configuration, and transmitting, to a base station serving the UE, the recommended beam quality measurement configuration. In addition, the UE may perform receiving, from the base station, instructions regarding the beam quality measurement configuration. The instructions may include instructions to activate, deactivate, and/or modify at least one beam quality measurement configuration. In addition, the instructions may be based, at least in part, on the recommended beam quality measurement configuration.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: July 6, 2021
    Assignee: Apple Inc.
    Inventors: Wei Zhang, Tianyan Pu, Yang Li, Haitong Sun, Wei Zeng, Jia Tang, Beibei Wang, Sami M. Almalfouh, Zhu Ji, Johnson O. Sebeni, Yuchul Kim, Dawei Zhang
  • Publication number: 20210203401
    Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for a UE to request a beam quality measurement procedure. A user equipment device may be configured to perform a method including performing transmitting a request to perform a beam quality measurement procedure for downlink receptions (e.g., a P3 procedure) to a base station/network entity, receiving instructions to perform the beam quality measurement procedure from the base station, and transmitting results of the beam quality measurement procedure to the base station. In some embodiments, transmission of the request may be response to at least one trigger condition and/or detection of a condition at the UE. The request may include an indication of a preferred timing offset. The instructions to perform the beam quality measurement procedure may include a schedule for the beam quality measurement.
    Type: Application
    Filed: March 15, 2021
    Publication date: July 1, 2021
    Inventors: Jia Tang, Beibei Wang, Dawei Zhang, Haitong Sun, Johnson O. Sebeni, Pengkai Zhao, Ping Wang, Wei Zeng, Yang Li, Zhu Ji
  • Patent number: 11044712
    Abstract: Certain aspects of the present disclosure provide techniques for indicating a purpose for a reference signal. According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving an indication of a purpose of a reference signal (RS) from a base station (BS) and processing the RS in accordance with the indicated purpose.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: June 22, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Jay Kumar Sundararajan, Alexandros Manolakos, Wanshi Chen, Yu Zhang, Haitong Sun
  • Patent number: 11025309
    Abstract: Aspects of the present disclosure provide methods and apparatus for selecting beamforming parameters for uplink transmissions based on an uplink reference signal. An example method generally includes identifying one or more parameters for beamformed transmission to a transmit receive point (TRP), transmitting a reference signal using beamforming in accordance with the identified parameters, and receiving, from the TRP in response to the reference signal, signaling for adjusting the one or more parameters for one or more subsequent beamformed transmissions.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 1, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Jay Kumar Sundararajan, Naga Bhushan, Haitong Sun, Tingfang Ji, Yu Zhang, Wanshi Chen
  • Publication number: 20210160964
    Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for Fifth Generation New Radio (5G NR) frequency range two (FR2) based communications beam management. The UE may configure, via communications with a base station, serving the UE, a group ID for PUCCH resources within a group of PUCCHs, e.g., for FR2 based communications. The UE may receive, from the base station, an update to one or more PUCCH resources within the group of PUCCHs via a medium access control (MAC) control element (CE) that may include one of a resource ID indicating an update to a PUCCH resource or the group ID to update the group of PUCCH resources. The UE may update, based on the MAC-CE, the one or more PUCCH resources within the group of PUCCHs.
    Type: Application
    Filed: September 15, 2020
    Publication date: May 27, 2021
    Inventors: Haitong Sun, Dawei Zhang, Hong He, Jia Tang, Pengkai Zhao, Tianyan Pu, Wei Zeng, Wei Zhang, Yuchul Kim, Yushu Zhang
  • Publication number: 20210144808
    Abstract: Apparatuses, systems, and methods for performing multi-TRP transmissions using techniques for reducing wireless device power consumption. A wireless device may select a downlink signal buffering method for a communication slot. The downlink signal buffering method may be selected from a single antenna panel signal buffering method or a multi-antenna panel signal buffering method. One or more beams for which to perform downlink signal buffering for the communication slot may be selected based at least in part on the downlink signal buffering method selected. Downlink signals may be received from one or more cellular base stations during the communication slot using the selected one or more beams. The downlink signals received using the selected one or more beams may be buffered by the wireless device.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Inventors: Yushu Zhang, Dawei Zhang, Haijing Hu, Yang Tang, Wei Zeng, Haitong Sun, Hong He, Yuchul Kim, Chunhai Yao, Weidong Yang, Chunxuan Ye, Jie Cui, Oghenekome Oteri, Fangli Xu
  • Publication number: 20210143936
    Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and/or cellular network to perform downlink control information (DCI) mode signaling and control resource set (CORESET) selection. A DCI mode may be signaled based on a predefined rule, media access control (MAC) control element (CE), and/or group based beam reporting. One or more CORESETs may be selected based on configuration of an active bandwidth part (BWP), CORESET identifier, higher layer index, periodicity, type of search space, and/or MAC CE.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Inventors: Yushu Zhang, Chunhai Yao, Chunxuan Ye, Dawei Zhang, Fangli Xu, Haijing Hu, Haitong Sun, Hong He, Jie Cui, Oghenekome Oteri, Wei Zeng, Weidong Yang, Yang Tang, Yuchul Kim, Yuqin Chen
  • 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: 10993117
    Abstract: An evolved Node B (eNB) serves as a primary serving cell (PCell) providing a primary component carrier (PCC) in a licensed spectrum to a user equipment (UE) in a carrier aggregation (CA) scheme. A secondary component carrier (SCC) is provided in an unlicensed spectrum. The eNB monitors parameters of bandwidths in the unlicensed spectrum, when at least one of the parameters indicates a change in availability of a select one of the bandwidths, the eNB generates a control indicator defining the change in availability of the bandwidth and broadcasts the control indicator to the UE, wherein the control indicator affects a modification in a transceiver of the UE associated with the bandwidth.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: April 27, 2021
    Assignee: Apple Inc.
    Inventors: Tianyan Pu, Farouk Belghoul, Wei Zeng, Wei Zhang, Xiaowen Wang, Yang Li, Ping Wang, Haitong Sun, Beibei Wang, Yuchul Kim, Johnson O. Sebeni, Dawei Zhang, Sami M. Almalfouh, Zhu Ji, Sunny Arora
  • Patent number: 10979109
    Abstract: A base station may transmit to a device an indication of codebook subset restriction (CBSR), which includes at least a restriction on a frequency basis. The device may receive the indication of CBSR, and may transmit to the base station channel state information (CSI) according to the received indication of CBSR. The indication of CBSR may also include a restriction on a spatial basis and restrict the device from reporting the CSI based on a subset of the frequency basis in addition to the spatial basis per configuration of the base station. The indication of CBSR may include a separately configured maximum allowed amplitude of a weighting coefficient for the spatial basis and the frequency basis, where the weighting coefficient is associated with a column vector of a precoding matrix used by the base station and the device.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: April 13, 2021
    Assignee: Apple Inc.
    Inventors: Yu Zhang, Dawei Zhang, Haitong Sun, Wei Zeng, Yuchul Kim
  • Publication number: 20210105124
    Abstract: Methods, systems, and devices for wireless communication are described. A device—such as a base station or user equipment (UE)—may transmit a demodulation reference signal (DMRS) including signaling information in addition to channel estimation information. To improve reception of the DMRS signaling information, the transmitting device may employ data protection techniques to the signaling information and modify a data payload transmitted in the physical data channel associated with the DMRS. In one aspect, the transmitting device may modify cyclic redundancy check (CRC) bits in the payload to include verification for the signaling information. In another aspect, the transmitting device may determine a scrambling code based on the signaling information, and may scramble the payload based on the scrambling code.
    Type: Application
    Filed: December 16, 2020
    Publication date: April 8, 2021
    Inventors: Hung Ly, Tingfang Ji, Sony Akkarakaran, Haitong Sun, Peter Gaal