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).
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Publication number: 20220104311Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for determining resources for scheduling side-link communications. The resources may be semi-persistent and/or dynamic resources. A user equipment device (UE) may determine a resource map for use in scheduling semi-persistent resources for side-link communications with at least one wireless node. The UE may transmit a resource map request message indicating preferred resource blocks, where each resource block may be defined by a time and a frequency. The UE may receive a confirmation message that may include a report regarding a set of resource blocks. The set of resource blocks may be from the preferred resource blocks included in the resource map request message. The UE may determine, based, at least in part, on the confirmation message, resource blocks to be used for the side-link communications and initiate the side-link communications using the determined resource blocks.Type: ApplicationFiled: October 12, 2021Publication date: March 31, 2022Inventors: Pengkai Zhao, Dawei Zhang, Fangli Xu, Haijing Hu, Haitong Sun, Sami M. Almalfouh, Wanping Zhang, Wei Zeng, Wei Zhang, Yuqin Chen
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Patent number: 11290992Abstract: 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: GrantFiled: August 11, 2020Date of Patent: March 29, 2022Assignee: Apple Inc.Inventors: Hong He, Dawei Zhang, Haitong Sun, Jia Tang, Pengkai Zhao, Wei Zeng, Wei Zhang, Yuchul Kim
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Patent number: 11284428Abstract: 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: GrantFiled: August 10, 2018Date of Patent: March 22, 2022Assignee: 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
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Patent number: 11258572Abstract: Systems, apparatuses, and methods for computing transport block size (TBS) for channels with shortened transmission time interval (sTTI). An initial size may be determined based on one or more TBS tables. The initial size may be scaled by a factor associated with an sTTI channel. A TBS table is selected based on the one or more TBS tables. The scaled size may be rounded based on the selected TBS table to generate a TBS for the sTTI channel.Type: GrantFiled: February 7, 2019Date of Patent: February 22, 2022Assignee: QUALCOMM IncorporatedInventors: Seyedkianoush Hosseini, Amir Farajidana, Ahmed Omar Desouky Ali, Thiagarajan Sivanadyan, Wenshu Zhang, Pengkai Zhao
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Publication number: 20210400748Abstract: A user equipment (UE) is configured to establish network connections for long-term evolution (LTE) and new radio (NR) radio access technologies (RATS) in non-standalone (NSA) E-UTRA-NR dual connectivity (ENDC) operation. The UE includes a multi-antenna array for data and signaling transmissions and receptions over the LTE and NR connections. The UE determines a most efficient antenna of the multi-antenna array for an operating frequency band of the LTE and NR connections, wherein the most efficient antenna is determined based on at least one performance factor for the UE when using the antenna compared to other antennas of the multi-antenna array, evaluates one or more factors for determining whether the LTE RAT or the NR RAT is to use the most efficient antenna and transmits uplink data on the most efficient antenna via either the LTE RAT or the NR RAT based on the evaluated factors.Type: ApplicationFiled: June 21, 2021Publication date: December 23, 2021Inventors: Sriram SUBRAMANIAN, Alosious Pradeep PRABHAKAR, Madhukar K. SHANBHAG, Pengkai ZHAO, Sanjeevi BALASUBRAMANIAN, Shiva Krishna NARRA, Vijay VENKATARAMAN, Vishwanth Kamala GOVINDARAJU, Wenping LOU
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Patent number: 11202259Abstract: Apparatuses, systems, and methods for performing power saving for a wireless device. The wireless device may connect to a base station (BS). The wireless device may establish discontinuous reception (DRX) with the BS, where the DRX comprises a DRX cycle having a cycle length. The wireless device may receive reference signal information from the base station in association with the DRX cycle length, where the reference signal information is transmitted according to the cycle length. The wireless device may perform tracking using the reference signal information.Type: GrantFiled: October 2, 2019Date of Patent: December 14, 2021Assignee: Apple Inc.Inventors: Zhu Ji, Jia Tang, Dawei Zhang, Wei Zeng, Yuchul Kim, Pengkai Zhao, Beibei Wang, Haitong Sun, Wei Zhang
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Publication number: 20210385707Abstract: Apparatuses, systems, and methods for RACH procedures to avoid excessive handover/secondary cell group failures. A base station may declare a handover and/or secondary cell group (SCG) failure and may determine that a failure threshold has been met. The base station may perform a remedial action in response to meeting the failure threshold. The failure threshold may be multi-dimensional, where a first dimension is associated with a number of handover/SCG failures and where a second dimension is associated with a time period in which the number of handover/SCG failures occurred. Further, a third dimension may be associated with a UE mobility state and a fourth dimension may be associated with whether the UE is using FR1 or FR2. The remedial action in response to meeting the failure threshold may include the base station suspending transmission of measurement object configurations for a specified period of time.Type: ApplicationFiled: May 26, 2021Publication date: December 9, 2021Inventors: Muhammad Saad, Syed A. Rahim, Sharad Garg, Vijay Venkataraman, Jia Tang, Wenping Lou, Thanigaivelu Elangovan, Pengkai Zhao, Tarakkumar G. Dhanani
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Publication number: 20210368368Abstract: A device may wirelessly communicate with a number of different cells used in a carrier aggregation. The device may monitor physical downlink control channels (PDCCHs) on the different cells, dynamically switching between a dormant monitoring state (DS) and an active monitoring state (AS). In the DS, the UE may not monitor any PDCCH candidates on the active secondary SCells corresponding to the DS, or it may monitor PDCCH candidates in the search space (SS) set with the largest monitoring periodicity among the multiple SS sets on the active bandwidth part (BWP). In the AS, the UE may monitor a set of PDCCH candidates in physical resources configured by higher layers on the BWPs. Switching from one monitoring state to another may be facilitated through the use of a new downlink control information (DCI) format without data scheduling, a modified existing DCI format with data scheduling, and/or use of a DS timer.Type: ApplicationFiled: November 28, 2019Publication date: November 25, 2021Inventors: Hong He, Pengkai Zhao, Wei Zeng, Dawei Zhang, Haitong Sun, Yuchul Kim, Chunhai Yao, Yushu Zhang, Wei Zhang, Weidong Yang, Chunxuan Ye
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Publication number: 20210360674Abstract: 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: ApplicationFiled: August 10, 2018Publication date: November 18, 2021Inventors: 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
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Patent number: 11178693Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for performing autonomous and non-autonomous side-link resource management as well as groupcast side-link resource management. A wireless device may perform a method for autonomous (e.g., non-network assisted) side-link resource management, e.g., the wireless device may perform a method to originate a semi-persistent side-link schedule for a side-link resource (e.g., a time domain and/or a frequency domain resource for side-link communications). Additionally, a wireless device may perform a method for groupcast side-link resource management. A network node may perform a method for non-autonomous (e.g., network assisted) side-link resource management, e.g., the network node may perform a method to assist wireless devices to schedule side-link resources.Type: GrantFiled: September 26, 2019Date of Patent: November 16, 2021Assignee: Apple Inc.Inventors: Wanping Zhang, Wei Zhang, Dawei Zhang, Faraz Faheem, Haijing Hu, Haitong Sun, Ping Wang, Sachin J. Sane, Sami M. Almalfouh, Tianyan Pu, Wei Zeng, Yuqin Chen, Pengkai Zhao
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Patent number: 11172492Abstract: Embodiments are presented herein for adjusting the conduct of routine communications of safety messages in V2X networks in order to conserve resources in participating power-limited devices while satisfying V2X system latency demands. Scheduling (e.g., timing and/or frequency) of safety message communications performed by certain UE devices participating in a V2X network may be dynamically adjusted according to various criteria, such as factors relating to the DRX cycle schedule, motion or mobility, traffic environment, and/or battery or power capabilities of the UE devices, which may conserve UE resources and power consumption. Certain UE devices may efficiently transmit safety messages to the V2X network using one of several proposed RACH-based procedures. In some embodiments, the size of safety message communications may be reduced through various compression techniques, and/or by reducing the amount of contained information, e.g.Type: GrantFiled: October 2, 2019Date of Patent: November 9, 2021Assignee: Apple Inc.Inventors: Wei Zhang, Wanping Zhang, Haitong Sun, Yuqin Chen, Pengkai Zhao, Jia Tang, Ping Wang, Wei Zeng, Haijing Hu, Dawei Zhang, Sami M. Almalfouh, Johnson O. Sebeni
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Patent number: 11147123Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for determining resources for scheduling side-link communications. The resources may be semi-persistent and/or dynamic resources. A user equipment device (UE) may determine a resource map for use in scheduling semi-persistent resources for side-link communications with at least one wireless node. The UE may transmit a resource map request message indicating preferred resource blocks, where each resource block may be defined by a time and a frequency. The UE may receive a confirmation message that may include a report regarding a set of resource blocks. The set of resource blocks may be from the preferred resource blocks included in the resource map request message. The UE may determine, based, at least in part, on the confirmation message, resource blocks to be used for the side-link communications and initiate the side-link communications using the determined resource blocks.Type: GrantFiled: September 18, 2019Date of Patent: October 12, 2021Assignee: Apple Inc.Inventors: Pengkai Zhao, Dawei Zhang, Fangli Xu, Haijing Hu, Haitong Sun, Sami M. Almalfouh, Wanping Zhang, Wei Zeng, Wei Zhang, Yuqin Chen
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Publication number: 20210297114Abstract: In an example method, a user equipment (UE) device determines one or more component carriers available to the UE device for at least one of transmitting or receiving data over a wireless network. The UE device transmits, to the wireless network, for each component carrier, an indication whether the component carrier supports at least one of transmitting or receiving data according to a multi-transmission and receiving points (multi-TRP) communication protocol.Type: ApplicationFiled: February 12, 2021Publication date: September 23, 2021Inventors: Yushu Zhang, Haitong Sun, Wei Zeng, Dawei Zhang, Yuchul Kim, Hong He, Weidong Yang, Chunxuan Ye, Chunhai Yao, Oghenekome Oteri, Wei Zhang, Jia Tang, Tianyan Pu, Pengkai Zhao
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Publication number: 20210289583Abstract: 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: ApplicationFiled: March 8, 2021Publication date: September 16, 2021Inventors: 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
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Patent number: 11096079Abstract: 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: GrantFiled: August 28, 2019Date of Patent: August 17, 2021Assignee: 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
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Publication number: 20210211972Abstract: 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: ApplicationFiled: October 29, 2020Publication date: July 8, 2021Inventors: 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
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Publication number: 20210203401Abstract: 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: ApplicationFiled: March 15, 2021Publication date: July 1, 2021Inventors: Jia Tang, Beibei Wang, Dawei Zhang, Haitong Sun, Johnson O. Sebeni, Pengkai Zhao, Ping Wang, Wei Zeng, Yang Li, Zhu Ji
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Publication number: 20210160964Abstract: 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: ApplicationFiled: September 15, 2020Publication date: May 27, 2021Inventors: Haitong Sun, Dawei Zhang, Hong He, Jia Tang, Pengkai Zhao, Tianyan Pu, Wei Zeng, Wei Zhang, Yuchul Kim, Yushu Zhang
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Patent number: 10951301Abstract: 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: GrantFiled: January 7, 2020Date of Patent: March 16, 2021Assignee: Apple Inc.Inventors: Jia Tang, Beibei Wang, Dawei Zhang, Haitong Sun, Johnson O. Sebeni, Pengkai Zhao, Ping Wang, Wei Zeng, Yang Li, Zhu Ji
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Publication number: 20210051690Abstract: 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: ApplicationFiled: August 11, 2020Publication date: February 18, 2021Inventors: Hong He, Dawei Zhang, Haitong Sun, Jia Tang, Pengkai Zhao, Wei Zeng, Wei Zhang, Yuchul Kim