Patents by Inventor Dawei Zhang

Dawei Zhang 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: 20240340132
    Abstract: Enhancements for a physical downlink shared channel (PDSCH) antenna ports indications for demodulation reference signal (DMRS) Type 2 with frequency domain orthogonal cover code length 4 are disclosed herein. Various embodiments herein relate the use of additional and/or replacement DMRS ports (e.g., for PDSCH) in an enhanced wireless communication system as compared to DMRS ports that may be used in legacy wireless communication systems. Various applicable scenarios are discussed. Various mechanisms for determining the additional and/or replacement DMRS ports with respect to the various discussed circumstances are also discussed.
    Type: Application
    Filed: April 3, 2024
    Publication date: October 10, 2024
    Inventors: Haitong Sun, Wei Zeng, Jie Cui, Ankit Bhamri, Dawei Zhang, Hong He
  • Patent number: 12114189
    Abstract: Aspects are presented herein of apparatuses, systems, and methods for measurement gap configuration. A cellular network may establish communication with a UE using a first and second cell. The cellular network may configure bandwidth parts (BWPs) for the first and second cell, including a first and second BWP for the first cell and a third and fourth BWP for the second cell. A measurement gap configuration that specifies when the UE is to use a first measurement gap pattern may be provided to the UE. At a first time, the cellular network may communicate with the UE using the first BWP for the first cell and the third BWP for the second cell, based on the first measurement gap pattern. At a second time, the cellular network may communicate with the UE using the second BWP for the first cell based on a modification of the first measurement gap pattern.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: October 8, 2024
    Assignee: Apple Inc.
    Inventors: Qiming Li, Dawei Zhang, Jie Cui, Yang Tang, Manasa Raghavan, Huaning Niu, Xiang Chen
  • Patent number: 12113727
    Abstract: A user equipment (UE) communicates with transmission-reception points (TRPs). When the UE generates uplink control information (UCI), it determines a higher layer index (HLI) value to target the UCI to the appropriate TRP. (Possible values of the HLI are associated with the TRPs.) For UCI on Physical Uplink Control Channel (PUCCH), the HLI value may be determined: based on an HLI value configured for a control resource set (CORESET), or for particular Physical Uplink Control Channel (PUCCH) resources; based on UCI type or spatial relation data or an index related to PUCCH resources. For UCI on a configured-grant Physical Uplink Shared Channel (PUSCH), the HLI value may be based on higher layer signals or an indicator relating to channel sounding on spatial relation data. For UCI on MsgA PUSCH in a two-step random access procedure, the HLI value may be based on PUSCH resource unit or PUSCH opportunity.
    Type: Grant
    Filed: August 23, 2023
    Date of Patent: October 8, 2024
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Dawei Zhang, Haijing Hu, Wei Zeng, Yang Tang, Haitong Sun, Yuchul Kim, Hong He, Chunhai Yao, Chunxuan Ye, Weidong Yang, Oghenekome Oteri, Jie Cui, Fangli Xu, Yuqin Chen
  • Patent number: 12113623
    Abstract: A user equipment (UE) may transmit hybrid automatic repeat request (HARQ) feedback when part of a group of UEs. The UE receives a radio network temporary identifier (RNTI) associated with a group of UEs that includes the UE. The UE monitors for a signal from one of a cell on which the UE is currently camped or a cell to which the UE is currently connected that is scrambled by the RNTI and includes control information. The UE transmits HARQ feedback to the one of the currently camped cell or currently connected cell, the HARQ feedback associated with the signal and, when the signal is received, performs an operation in response to the control information.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: October 8, 2024
    Assignee: Apple Inc.
    Inventors: Haitong Sun, Chunhai Yao, Chunxuan Ye, Dawei Zhang, Hong He, Jie Cui, Oghenekome Oteri, Sigen Ye, Wei Zeng, Weidong Yang, Yang Tang, Yushu Zhang
  • Patent number: 12114389
    Abstract: While in an inactive state, a user equipment (UE) device transmits a message to a base station. The message indicates the UE device's intent to perform transmission and/or reception of user data with the network during the inactive state. The message may include a portion of the user data and/or a buffer status report. The UE device receives a response message that induces a state transition in the UE device. Different state transitions (e.g., to idle, inactive, legacy inactive, connected) may be induced by different types of response message (e.g., release, release with suspend configuration, resume, setup). One particular type of response message causes the UE to stay in the inactive state and enables subsequent user data transmission/reception in the inactive state. The response message may implicitly (or explicitly) indicate that forwarding of the user data to a core network was successful.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: October 8, 2024
    Assignee: Apple Inc.
    Inventors: Fangli Xu, Murtaza A Shikari, Dawei Zhang, Haijing Hu, Srinivasan Nimmala, Zhanfeng Jia, Sarma V Vangala, Ralf Rossbach
  • Patent number: 12113737
    Abstract: Methods to enhance the coverage of NR systems for coverage-limited wireless devices are disclosed. A serving base station may configure a coverage-limited UE with parameters for the UE to operate in a coverage enhancement mode through RRC signaling, DCI, or RAR grant. The UE may use the configuration parameters to determine whether to enter into the coverage enhancement mode when connecting and communicating with the serving base station. The configuration parameters may configure the UE to exploit both time diversity and frequency diversity to extend and enhance coverage when receiving the PDSCH and PDCCH channels, when transmitting the PUSCH and PUCCH channel, and when transmitting PUSCH Msg3 during random access. Advantageously, the base station may flexibly and dynamically configure the UE with coverage enhancement parameters to extend the coverage of the UE using time diversity and frequency diversity gains as the UE moves around.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: October 8, 2024
    Assignee: APPLE INC.
    Inventors: Chunhai Yao, Chunxuan Ye, Dawei Zhang, Fangli Xu, Haijing Hu, Haitong Sun, Hong He, Jie Cui, Oghenekome Oteri, Shu Guo, Wei Zeng, Weidong Yang, Yang Tang, Yuchul Kim, Yuqin Chen, Yushu Zhang
  • Publication number: 20240334457
    Abstract: To extend a physical broadcast channel (PBCH) in wireless communications, an extended physical broadcast channel (EPBCH) transmission is generated with one or more legacy PBCH blocks and one or more EPBCH blocks within an extension window. A size of the extension window is determined based at least in part on a PBCH repetition number and a number of the legacy PBCH blocks relative to a number of the EPBCH blocks. The EPBCH transmission is transmitted by a base station (BS) to one or more user equipment (UE).
    Type: Application
    Filed: March 28, 2024
    Publication date: October 3, 2024
    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, Haijing Hu, Zhibin Wu, Fangli Xu
  • Publication number: 20240333449
    Abstract: The present disclosure is directed to AP-SRS triggering offset enhancement for further enhanced MIMO. User equipment (UE), base stations, apparatus, methods, computer-readable memory media, and computer program products are disclosed. The UE may be configured to receive an offset information associated with AP-SRS transmission of the UE; determine a slot offset associated with the AP-SRS transmission, at least based on the offset information; determine a specific slot for the AP-SRS transmission, based on the determined slot offset; and perform the AP-SRS transmission in the determined specific slot.
    Type: Application
    Filed: June 12, 2024
    Publication date: October 3, 2024
    Applicant: Apple Inc.
    Inventors: Haitong SUN, Dawei Zhang, Wei Zeng, Yushu Zhang, Hong He, Chunxuan Ye, Huaning Niu, Weidong Yang, Oghenekome Oteri, Seyed Ali Akbar Fakoorian, Sigen Ye, Chunhai Yao
  • Publication number: 20240333355
    Abstract: Some aspects of this disclosure relate to apparatuses and methods for supporting channel state information (CSI) report configuration for network spatial elements adaptation. The UE can receive a CSI report configuration from the base station indicating a first configuration to configure a first CSI report, and a second configuration to configure a second CSI report. The UE can determine one or more active configurations selected from the first configuration and the second configuration, based on whether one or more of the first configuration or the second configuration is activated by a Medium Access Control (MAC) Control Element (MAC CE) or triggered by a Downlink Control Information (DCI). The processor can be further configured to select, based on a report mode, one or more CSI reports from the first CSI report and the second CSI report. The report mode can be a basic mode or an enhanced mode.
    Type: Application
    Filed: March 14, 2024
    Publication date: October 3, 2024
    Applicant: Apple Inc.
    Inventors: Dan WU, Hong HE, Dawei ZHANG, Haitong SUN, Sigen YE, Wei ZENG, Chunxuan YE
  • Publication number: 20240334321
    Abstract: Some aspects of this disclosure relate to apparatuses and methods for apparatuses and methods for providing continuous communication services for a user equipment (UE) connected to a non-terrestrial network (NTN) and/or one or more satellites providing cellular coverage. The UE may receive a list of neighbor cells from a serving cell, which may be a satellite moving relative to the Earth and having a moving coverage area. After receiving the list of neighbor cells, the UE may sort the list to prioritize the neighbor cells. This sorting may be based on a calculated distance between the UE and each of the neighbor cells. The UE may sequentially perform a synchronization and measurement process with each of the neighbor cells or a subset of the neighbor cells based on the prioritization order. The UE may then establish communications with a target cell from the prioritized list to maintain continuity.
    Type: Application
    Filed: February 27, 2024
    Publication date: October 3, 2024
    Applicant: Apple Inc.
    Inventors: Jie CUI, Yang Tang, Qiming Li, Haitong Sun, Dawei Zhang, Chunxuan Ye
  • Patent number: 12107786
    Abstract: Some embodiments include an apparatus, method, and computer program product for tracking reference signal (TRS) support of high speed use cases of 5G communications in a single frequency network (SFN), where a user equipment (UE) can measure a Doppler offset of a combined signal from two or more transmission reception points (TRPs) of the 5G communications system. A 5G node B (gNB) node can transmit a periodic, semi-persistent (SP), or aperiodic TRS with high measurement density that the UE uses to measure a Doppler offset of a combined signal. For example, the gNB can: trigger the aperiodic TRS based on a downlink assignment; and/or use lower layer signaling to arrange to transmit a semi-persistent TRS or a periodic TRS with a reduced periodicity. In some embodiments, the gNB can measure the Doppler offset based on an uplink signal, and transmit a TRS based on a pre-compensated Doppler frequency.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: October 1, 2024
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Dawei Zhang, Haitong Sun, Wei Zeng, Weidong Yang
  • Patent number: 12107785
    Abstract: Apparatuses, systems, and methods for sounding reference signal (SRS) coverage enhancement. A user equipment device (UE) may receive a configuration for SRS time domain bundling from a base station and may transmit, to the base station, at least one SRS transmission in accordance with the configuration. The configuration may include an indication of (and/or indicate) one or more SRS transmission occasions. The configuration may be communicated via higher layer signaling or physical layer signaling. The RRC parameter may be an SRS-ResourceSet parameter or an SRS-Resource parameter and may include a nrofSlots parameter to indicate the number of slots, where a slot may correspond to an SRS transmission occasion. The MAC CE may include at least four bits indicating the number of slots. The DCI may include at least one field indicating the number of slots.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: October 1, 2024
    Assignee: Apple Inc.
    Inventors: Haitong Sun, Huaning Niu, Hong He, Wei Zeng, Dawei Zhang, Chunxuan Ye, Weidong Yang, Chunhai Yao, Jie Cui, Yang Tang, Yushu Zhang
  • Patent number: 12108291
    Abstract: Embodiments of the present disclosure enable a user equipment (UE) to performing inter-Radio Access Technology (RAT) measurements. The UE determines whether one or more inter-RAT measurement object (MO) is configured with or without a measurement gap (MG). When the one or more inter-RAT MO is on an NR serving component carrier (CC) with the MG, the UE performs an inter-RAT measurement on the NR serving CC based on whether the MG is fully overlapped or partially overlapped with synchronization signal blocks (SSBs) of a target MO of the one or more inter-RAT MO. When the one or more inter-RAT MO is on the NR serving CC without the MG, the UE performs the inter-RAT measurement on the NR serving CC based on whether a target SSB of the target MO is within or outside an active bandwidth part (BWP) of the NR serving CC.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: October 1, 2024
    Assignee: APPLE INC.
    Inventors: Jie Cui, Dawei Zhang, Haitong Sun, Hong He, Huaning Niu, Manasa Raghavan, Qiming Li, Xiang Chen, Yang Tang, Yushu Zhang
  • Patent number: 12107797
    Abstract: An exemplary unified framework that is disclose for identifying which communication beams are to be uplink and/or downlink communication beams. This exemplary unified framework can utilize one or more universal Transmission Configuration Indication (TCI) states to identify the one or more communication beams that are to be utilized for uplink and/or downlink communication. The one or more universal TCI states can be used identify the one or more communication beams. And the one or more universal TCI states can include applicability information to identify which control channels, such as the PDCCH and the PUCCH to provide some examples, data channels, such as the PDSCH and/or the PUSCH to provide some examples, and/or signals, such as the DMRS, the PTRS, the SRS, and/or the CSI-RS to provide some examples, are to utilize the communication beams identified by the one or more universal TCI states.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: October 1, 2024
    Assignee: APPLE INC.
    Inventors: Yushu Zhang, Dawei Zhang, Haitong Sun, Wei Zeng
  • Patent number: 12107795
    Abstract: To reduce the beam reporting latency, a base station may include a sounding reference signal (SRS) indication to a wireless communication device (UE) as part of the transmission configuration information (TCI) transmitted to the UE, allowing the UE to receive a corresponding downlink signal using the same beam (or with the same beam) the UE used to transmit (or with which the UE transmitted) the SRS indicated in the TCI. The SRS may be one of multiple SRSs previously transmitted by the UE. The UE may transmit the multiple SRSs periodically and/or according to semi-persistent scheduling, or it may transmit them aperiodically. Therefore, the UE does not need to report the beam quality, and the base station may perform the necessary beam measurement(s) instead. Various parameters and conditions may be defined for the UE to support SRS-based TCI.
    Type: Grant
    Filed: September 29, 2019
    Date of Patent: October 1, 2024
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Haitong Sun, Dawei Zhang, Haijing Hu, Wei Zeng, Hong He, Chunhai Yao, Yuchul Kim, Yuqin Chen, Fangli Xu, Yakun Sun
  • Patent number: 12108469
    Abstract: This disclosure relates to techniques for performing relay communication by a relay wireless device in a wireless communication system. A relay wireless device may receive bearer configuration information from a network. Based on the bearer configuration information, the UE may establish a bearer with a remote wireless device. The relay wireless device may forward data to/from the remote wireless device using the bearer.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: October 1, 2024
    Assignee: Apple Inc.
    Inventors: Fangli Xu, Dawei Zhang, Haijing Hu, Yuqin Chen, Longda Xing, Srinivasan Nimmala, Srirang A. Lovlekar, Sethuraman Gurumoorthy, Murtaza A. Shikari, Sree Ram Kodali
  • Patent number: 12108377
    Abstract: Systems, methods and devices can are provided, which can include configuring one or more bandwidth parts for a secondary cell (SCell) that is in communication with a user equipment (UE). A base station transmits to a UE a first radio resource control (RRC) message including one or more configuration parameters for a first bandwidth part (BWP) associated with a secondary cell (SCell). The UE communicates a first message with the SCell via the first SCell BWP. The UE receives a second RRC message indicating a change from the first SCell BWP to a second SCell BWP to be used for SCell communications. The UE communicates a second message with the SCell via the second SCell BWP.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: October 1, 2024
    Assignee: Apple Inc.
    Inventors: Manasa Raghavan, Jie Cui, Yang Tang, Huaning Niu, Fangli Xu, Dawei Zhang, Hong He, Oghenekome Oteri, Chunxuan Ye
  • Publication number: 20240322890
    Abstract: A user equipment (UE) may be configured to perform layer 1 (L1) measurement procedures and layer 3 (L3) measurement procedures. The UE configures a channel state information-reference signal (CSI-RS) layer 3 (L3) measurement window, identifies a collision between a layer 1 (L1) measurement operation and a L3 measurement operation and omits at least one L1 measurement in response to identifying the collision.
    Type: Application
    Filed: June 6, 2024
    Publication date: September 26, 2024
    Inventors: Jie CUI, Yang TANG, Yihong QI, Herbert R DAWID, Panagiotis BOTSINIS, Dawei ZHANG, Hong HE, Manasa RAGHAVAN, Qiming LI, Xiang CHEN
  • Publication number: 20240323966
    Abstract: A user equipment (UE) may increase the reliability of transmission of a Physical Uplink Control Channel (PUCCH) by transmitting repeated copies of the PUCCH, according to a repetition pattern spanning one or more slots. In an intra-slot mode, more than one copy may be transmitted within each configured slot, with or without frequency hopping. The number of copies as well as a temporal gap between the transmission of successive copies may be configured by the network. The repetition pattern may or may not be interrupted by slot boundaries. In an inter-slot mode, one copy is transmitted per configured slot. Different copies may be transmitted in different directions, according to a spatial consistency pattern. The UE may perform repeated transmission of PUCCHs to different Transmission-Reception Points (TRPs) using respectively different timing advances and/or transmit power levels.
    Type: Application
    Filed: May 31, 2024
    Publication date: September 26, 2024
    Inventors: Haitong Sun, Yushu Zhang, Huaning Niu, Hong He, Wei Zeng, Dawei Zhang, Chunxuan Ye, Oghenekome Oteri, Sigen Ye, Weidong Yang, Chunhai Yao
  • Publication number: 20240322861
    Abstract: A system includes a user device having a near field communication (NFC) interface. The system also includes a short-range wireless communication interface configured to communicate with devices in a local physical space. The system also includes one or more processors and a non-transitory computer readable storage medium storing instructions for detecting, via the NFC interface, near field proximity between the user device and a NFC-enabled device, receiving pairing information from the NFC-enabled device via the NFC interface, processing the pairing information to establish communication between the system and a wireless-enabled device located in the local physical space via the short-range wireless communication interface, receiving location information from the wireless-enabled device via the short-range wireless communication interface, and determining a location of the user device in the local physical space, relative to at least one reference point, using the location information.
    Type: Application
    Filed: March 21, 2023
    Publication date: September 26, 2024
    Inventors: Dawei Zhang, Katie Lu