Patents by Inventor Pengkai Zhao

Pengkai Zhao 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: 11716122
    Abstract: Various systems and methods disclosed herein describe improvements for beam management that leverage virtualization across a vertical polarization (V-Pol) and horizontal polarization (H-Pol). One or more of a user equipment (UE) and a base station may include an antenna array comprising V-Pol antenna elements and H-Pol antenna elements. The UE may determine a number of receive (Rx) beam of an Rx beam sweep are needed, signal this number to the base station, and perform the beam sweep according to one or both of the V-Pol and H-Pol. A UE may use group based beam reporting to indicate to the base station a transmit (Tx) beam upon which downlink MIMO using V-Pol and H-Pol may be supported by reporting a same transmission configuration indication (TCI) corresponding to the Tx beam for both a first Rx beam and a second Rx beam in a group based beam reporting message.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: August 1, 2023
    Assignee: APPLE INC.
    Inventors: Haitong Sun, Chunhai Yao, Chunxuan Ye, Dawei Zhang, Hong He, Oghenekome Oteri, Pengkai Zhao, Sigen Ye, Wei Zeng, Weidong Yang, Wen Zhao, Yushu Zhang
  • Patent number: 11696291
    Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to group transmissions into one or more groups, e.g., of various priority levels and/or types of transmissions. The UE may resolve collisions, e.g., according to one or more procedures described herein. The UE may transmit the transmissions according to the resolutions.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: July 4, 2023
    Assignee: Apple Inc.
    Inventors: Hong He, Dawei Zhang, Haitong Sun, Jia Tang, Pengkai Zhao, Wei Zeng, Wei Zhang, Yuchul Kim
  • Patent number: 11696281
    Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform multiple TTI PUSCH transmissions in a wireless communication system as well as code block groups (CBGs) based retransmissions operations. A UE may perform radio resource control (RRC) signaling with a network entity to configure a data structure that may include one or more sets of physical uplink shared channel (PUSCH) transmission configurations, where each set of PUSCH transmission configurations span multiple TTIs. The wireless device may be configured to receive, from the network entity, a downlink control information (DCI) message that may include a time domain resource assignment field (TDRA) that may indicate a set of PUSCH transmission configurations included in the data structure. The wireless device may perform PUSCH transmissions spanning multiple TTIs according to the indicated set of PUSCH transmission configurations over an unlicensed band.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: July 4, 2023
    Assignee: Apple Inc.
    Inventors: Hong He, Dawei Zhang, Haitong Sun, Jia Tang, Pengkai Zhao, Wei Zeng, Wei Zhang, Yuchul Kim
  • Publication number: 20230199750
    Abstract: Embodiments include a computer readable storage medium, a user equipment, a method and an integrated circuit that perform operations. The operations include generating configured grant uplink control information (CG-UCI), generating hybrid automatic repeat request acknowledgement (HARQ-ACK) information, generating channel state information (CSI) and mapping the CG-UCI, HARQ-ACK, and CSI to resource elements (REs) in resource blocks (RBs) of a configured grant physical uplink shared channel (PUSCH) transmission, wherein the PUSCH transmission includes a demodulation reference signal (DMRS) and wherein the mapping includes one of mapping a concatenated bit sequence or omitting a portion of the CSI.
    Type: Application
    Filed: April 8, 2020
    Publication date: June 22, 2023
    Inventors: Hong HE, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Haitong SUN, Pengkai ZHAO, Wei ZENG, Wei ZHANG, Weidong YANG, Yuchul KIM, Yushu ZHANG, Zhibin WU
  • Patent number: 11683106
    Abstract: A method performed by a user equipment (UE) configured with a plurality of antenna panels. Each antenna panel is configured to beamform over a millimeter wave (mmWave) frequency band. The method includes identifying a predetermined condition corresponding to a first antenna panel of the plurality of antenna panels, selecting a second antenna panel of the plurality of antenna panels based on identifying the predetermined condition corresponding to the first antenna panel and transmitting a beam via the second antenna panel based on the selection.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: June 20, 2023
    Assignee: Apple Inc.
    Inventors: Shiva Krishna Narra, Madhukar K. Shanbhag, Pengkai Zhao, Sami M. Almalfouh, Sanjeevi Balasubramanian, Sriram Subramanian, Wei Zhang, Yi Su
  • Patent number: 11658726
    Abstract: This disclosure relates to performing receive beam tracking using motion sensing information in a cellular communication system. A wireless device and a cellular base station may establish a cellular link. A receive beam configuration may be selected for the cellular link. A downlink data beam may be received using the selected receive beam configuration. A possible modification to the receive beam configuration may be selected based at least in part on motion sensing information for the wireless device. It may be determined whether the possible modification to the receive beam configuration improves downlink data beam reception. It may be determined whether to modify the receive beam configuration for the cellular link in accordance with the possible modification to the receive beam configuration, for example based on whether the possible modification to the receive beam configuration improves downlink data beam reception.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: May 23, 2023
    Assignee: Apple Inc.
    Inventors: Yang Li, Zhu Ji, Johnson O. Sebeni, Ping Wang, Haitong Sun, Pengkai Zhao, Sulabh Khandelwal, Jia Tang
  • Publication number: 20230155752
    Abstract: Embodiments include a user equipment (UE) and methods performed by the UE. The methods include receiving a measurement configuration request from a network, in response to the measurement configuration request, measuring a quality of one or more uplink (UL) carrier aggregation (CA) combinations, wherein each UL CA combination comprises a plurality of component carriers, generating a message that includes the quality of the one or more UL CA combinations and transmitting the message to the network. Further embodiments include the above operations being performed as a set of instructions executed by a processor or an integrated circuit that includes circuitry to perform the operations.
    Type: Application
    Filed: April 8, 2020
    Publication date: May 18, 2023
    Inventors: Wei ZHANG, Sriram SUBRAMANIAN, Sandeep K SUNKESALA, Vishwanth KAMALA GOVINDARAJU, Tarakkumar G DHANANI, Mandhukar K SHANBHAG, Sanjeevi BALASUBRAMANIAN, Alosious Pradeep PRABHAKAR, Shiva Krishna NARRA, Vijay VENKATARAMAN, Vijay GADDE, Sharad GARG, Pengkai ZHAO, Yi SU, Jia TANG, Johnson O SEBENI, Haitong SUN, Wei ZENG, Yuchul KIM, Hong HE, Dawei ZHANG, Chunhai YAO, Yushu ZHANG
  • Patent number: 11646822
    Abstract: Groupcast communications between devices of a group of devices, e.g. between vehicles in a platoon, may include a device in the group transmitting a groupcast message in a sidelink transmission to the other devices and receiving feedback information in sidelink transmissions from the other devices within the same channel occupancy time (CoT). The feedback information may be transmitted by the other devices in response to the groupcast message including an information request directed to the other devices. The group of devices may include a designated group leader which may manage one or more aspects of the communications of the other devices in the group. The designated group leader may be dynamically switched based at least on the received feedback information. The devices in the group may use beamforming for intra-group and inter-group sidelink communications for efficient spectrum usage.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: May 9, 2023
    Assignee: Apple Inc.
    Inventors: Wei Zhang, Wanping Zhang, Fangli Xu, Haitong Sun, Pengkai Zhao, Jia Tang, Wei Zeng, Yuqin Chen, Haijing Hu, Sami M. Almalfouh, Dawei Zhang, Johnson O. Sebeni
  • Publication number: 20230073001
    Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing downlink transmission and interlace uplink transmission. For example, some aspects of this disclosure relate to a base station including a transceiver configured to communicate over a wireless network with a user equipment (UE) and a processor communicatively coupled to the transceiver. The processor divides a plurality of candidate Synchronization Signal Block (SSB) positions in a time window into a plurality of groups and communicates, using the transceiver, information associated with the plurality of groups of candidate SSB positions to the UE. The processor further performs a listen-before-talk (LBT) procedure. In response to the LBT procedure being successful, the processor determines a first group of the plurality of groups and transmits, using the transceiver, one or more SSBs on one or more candidate SSB positions of the first group to the UE.
    Type: Application
    Filed: May 14, 2020
    Publication date: March 9, 2023
    Applicant: Apple Inc.
    Inventors: Hong HE, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Haitong SUN, Jie CUI, Oghenekome OTERI, Pengkai ZHAO, Wei ZENG, Wei ZHANG, Weidong YANG, Yang TANG, Yuchul KIM, Yushu ZHANG, Zhibin WU
  • Publication number: 20230038005
    Abstract: Apparatuses, systems, and methods for providing downlink control for non-coherent joint transmission. A cellular base station may provide downlink control information associated with a non-coherent joint transmission downlink data communication to a wireless device, which may receive the downlink control information. The downlink control information may be provided as a single downlink control information including scheduling information for two data streams of the non-coherent joint transmission data communication, or a portion of a multi-stage downlink control information transmission. The wireless device may receive the non-coherent joint transmission downlink data communication based at least in part on the downlink control information.
    Type: Application
    Filed: October 19, 2022
    Publication date: February 9, 2023
    Inventors: Haitong Sun, Johnson O. Sebeni, Zhu Ji, Dawei Zhang, Wei Zhang, Yuchul Kim, Tianyan Pu, Pengkai Zhao, Wei Zeng
  • Publication number: 20230025057
    Abstract: Some embodiments include an apparatus, method, and computer program product for using group based reporting for beam management in a 5G wireless communications system. A user equipment (UE) can determine based on a signal-to-interference-plus noise ratio (SINR) or reference signal received power (RSRP) measurement, a ranking of two or more beam combinations, and transmit the ranking to a 5G node B (gNB). The UE can receive from the gNB, a transmission configuration indicator (TCI) codepoint that identifies a combination of two or more beams, where the TCI codepoint is based at least on the ranking. The UE can receive simultaneous transmissions via the combination, and transmit a report to the gNB that identifies by the TCI codepoint, SINRs that corresponds to the combination. In some embodiments the UE can simultaneously transmit on a second combination identified by a sounding reference signal (SRS) resource indicator (SRI) codepoint.
    Type: Application
    Filed: April 8, 2020
    Publication date: January 26, 2023
    Applicant: Apple Inc.
    Inventors: Haitong SUN, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Hong HE, Jia TANG, Oghenekome OTERI, Pengkai ZHAO, Tianyan PU, Wei ZENG, Wei ZHANG, Weidong YANG, Yeong-Sun HWANG, Yuchul KIM, Yushu ZHANG
  • Patent number: 11540276
    Abstract: A device may wirelessly communicate according to a first radio access technology (RAT) within a first bandwidth part (BWP) of a frequency spectrum in which wireless communications according to other RAT(s) also take place. The device may be instructed to operate/communicate within a second BWP of the frequency spectrum responsive to the device successfully completing a listen-before-talk (LBT) procedure within a specified portion of the second BWP, where the second BWP contains the first BWP while the first BWP does not contain the specified portion of the second BWP. The device may also be instructed to operate/communicate within a specified frequency band (SFB) of the frequency spectrum responsive to the device successfully completing an LBT procedure within the SFB, where the SFB is not contiguous with the frequency band that includes the first BWP. The device may then simultaneously operate within the second frequency band and the first frequency band.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: December 27, 2022
    Assignee: Apple Inc.
    Inventors: Wei Zhang, Pengkai Zhao, Wei Zeng, Haitong Sun, Dawei Zhang, Jia Tang, Johnson O. Sebeni, Ping Wang, Sami M. Almalfouh, Tianyan Pu
  • Publication number: 20220407573
    Abstract: A method includes receiving an indication to transmit a first set of signals using a first standard (e.g., Long Term Evolution) via a first set of antennas of a radio frequency device and a second set of signals using a second standard (e.g., New Radio) via a second set of antennas. The method also includes transmitting the first set of signals via the first set of antennas using a first power based on positions of the first set and second set of antennas, exposure conditions of the first set and the second set of signals on a user, and/or priorities of the first and the second set of signals. Moreover, the method includes transmitting the second set of signals via the second set of antennas using a second power based on the positions of the antennas, the exposure conditions of the signals on the user, and/or priorities of the signals.
    Type: Application
    Filed: June 18, 2021
    Publication date: December 22, 2022
    Inventors: Weiping Dou, Anthony Wang, Digvijay Arjunrao Jadhav, Eric Conor Merkley, Hailong Yang, Indranil S. Sen, Madhusudan Chaudhary, Pengkai Zhao, Prashant H. Vashi, Rajesh Ambati, Wen Zhao
  • Publication number: 20220394605
    Abstract: A device, system and method for a user equipment (UE) to report a network resource and capability state to a network for coordinating network resource allocations. The UE is configured to establish a first connection to a first network based on a first subscriber identity module (SIM) of the UE and further configured to establish a second connection to a second network based on a second SIM of the UE. The method includes determining an upcoming first change of a state of the UE with respect to the first connection and transmitting, to the first network, an indication of the first change of state of the UE. The method further includes changing the state of the UE with respect to the first connection.
    Type: Application
    Filed: November 28, 2019
    Publication date: December 8, 2022
    Inventors: Beibei WANG, Pengkai ZHAO, Zhu JI, Fangli XU, Haijng HU, Yuqin CHEN, Lele CUI, Ruirui ZONG, Haitong SUN, Wei ZENG, Jia TANG, Tianyan PU, Johnson O. SEBENI, Dawei ZHANG, Thanigaivelu ELANGOVAN, Hailong YANG, Xueting LIU
  • Patent number: 11516882
    Abstract: Apparatuses, systems, and methods for providing downlink control for non coherent joint transmission. A cellular base station may provide downlink control information associated with a non coherent joint transmission downlink data communication to a wireless device, which may receive the downlink control information. The downlink control information may be provided as a single downlink control information including scheduling information for two data streams of the non coherent joint transmission data communication, or a portion of a multi-stage downlink control information transmission. The wireless device may receive the non coherent joint transmission downlink data communication based at least in part on the downlink control information.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: November 29, 2022
    Assignee: Apple Inc.
    Inventors: Haitong Sun, Johnson O. Sebeni, Zhu Ji, Dawei Zhang, Wei Zhang, Yuchul Kim, Tianyan Pu, Pengkai Zhao, Wei Zeng
  • Publication number: 20220377532
    Abstract: A method and apparatus for a wireless device of reduced capabilities to access a wireless communication network targeted to operate with wireless device having higher capabilities is disclosed. The device may receive from abase station of the wireless communication network an indication of whether the type of devices that includes the wireless device of reduced capabilities is allowed to access the wireless communication network. The device may transmit to the base station signaling associated with connecting to the base station if the base station indicates that the type of devices with reduced capabilities is allowed to access the wireless communication network. The signaling allows the device to connect to the base station. The device may transmit capability information of the device to the base station. The device may configure its features based on the capability information to communicate with the base station.
    Type: Application
    Filed: February 2, 2020
    Publication date: November 24, 2022
    Inventors: Hong He, Dawei Zhang, Wei Zeng, Chunhai Yao, Haitong Sun, Yuchul Kim, Yushu Zhang, Chunxuan Ye, Oghenekome Oteri, Weidong Yang, Yang Tang, Jie Cui, Zhibin WU, Pengkai Zhao
  • Publication number: 20220368403
    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: July 26, 2022
    Publication date: November 17, 2022
    Inventors: Jia Tang, Beibei Wang, Dawei Zhang, Haitong Sun, Johnson O. Sebeni, Pengkai Zhao, Ping Wang, Wei Zeng, Yang Li, Zhu Ji
  • Publication number: 20220312551
    Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for performing a listen again after talk procedure to detect collisions over an access medium. The wireless device may determine a frequency and configuration of modified transmission frames for transmission over an access medium (licensed or unlicensed) and may further determine a timing of the modified transmission frames within a transmission occasion. The wireless device may detect, during a listening period of the modified transmission frame, a collision and may adjust, based, at least in part, on the detected collision, a remaining transmission schedule for the transmission schedule and/or LBT parameters.
    Type: Application
    Filed: June 16, 2022
    Publication date: September 29, 2022
    Inventors: Tianyan Pu, Haitong Sun, Wanping Zhang, Wei Zeng, Pengkai Zhao, Dawei Zhang, Wei Zhang, Ping Wang, Sami M. Almalfouh, Johnson O. Sebeni
  • Publication number: 20220312417
    Abstract: Systems and methods provide secondary cell group (SCG) activation and deactivation. A user equipment (UE) in a wireless network may determine bandwidth part (BWP) configurations for a carrier of a primary secondary cell (PSCell) of an SCG for dual connectivity (DC). The UE may move between an SCG activation state and an SCG deactivation state based on the BWP configurations. SCG deactivation modeling may be based on a separate BWP configuration or may be modeled via a separate configuration in radio resource control (RRC) that is applicable to the BWPs in a serving cell.
    Type: Application
    Filed: October 22, 2020
    Publication date: September 29, 2022
    Inventors: Naveen Kumar R Palle VENKATA, Fangli XU, Haijing HU, Lakshmi N. KAVURI, Muthukumaran DHANAPAL, Pengkai ZHAO, Sarma V. VANGALA, Thanigaivelu ELANGOVAN, Wenping LOU, Yuqin CHEN, Zhibin WU
  • Publication number: 20220311478
    Abstract: Various systems and methods disclosed herein describe improvements for beam management that leverage virtualization across a vertical polarization (V-Pol) and horizontal polarization (H-Pol). One or more of a user equipment (UE) and a base station may include an antenna array comprising both V-Pol and H-Pol antenna elements. A UE may message a base station to configure uplink (UL) multiple input multiple output (MIMO) operations across one or more of the V-Pol and the H-Pol. The message may include a number of MIMO layers to be concurrently used for communicating data to the base station, where each MIMO layer is transmitted using one of a V-Pol and an H-Pol; a number of sounding reference signals (SRS) to be transmitted by the UE, each SRS to be transmitted using one of the V-Pol and the H-Pol; and a supported maximum number of antenna ports per each SRS.
    Type: Application
    Filed: April 14, 2021
    Publication date: September 29, 2022
    Inventors: Haitong SUN, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Hong HE, Oghenekome OTERI, Pengkai ZHAO, Sigen YE, Wei ZENG, Weidong YANG, Wen ZHAO, Yushu ZHANG