Patents by Inventor Fangli XU

Fangli XU 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: 12167423
    Abstract: User equipment devices (UEs) may receive multimedia broadcast and multicast service (MBMS) transmissions over a bandwidth part (BWP) specifically allocated for MBMS point-to-multipoint (PTM) transmissions, or over MBMS-specific resources configured for PTM transmissions within a UE-dedicated BWP. The network (e.g. base station) may configure the MBMS-specific BWP for the UE for the PTM transmissions per serving cell. The MBMS-specific BWP may be used for downlink transmissions, and may be cell specific or UE specific per serving cell. The base station may provide MBMS PTM scheduling information per BWP to the UE, may indicate whether a UE-dedicated BWP may be used for PTM scheduling and transmission, and may provide the corresponding scheduling configuration when applicable. The UE may communicate its various capabilities related to MBMS reception and simultaneous reception of PTM and point-to-point (PTP) transmissions to the base station to aid the base station in scheduling communications of the UE.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: December 10, 2024
    Assignee: Apple Inc.
    Inventors: Fangli Xu, Haijing Hu, Dawei Zhang, Yuqin Chen, Chunhai Yao, Yushu Zhang, Wei Zeng
  • Publication number: 20240406729
    Abstract: Techniques discussed herein can facilitate improved security establishment procedures for Vehicle to Everything (V2X) direct connections. Various embodiments are employable at or comprise User Equipment, and can initiate and/or receive V2X security establishment connections wherein a receiving UE can reject the connection based on the initiating UE's capabilities/policy and/or the initiating UE can make the final decision regarding the connection based at least on receiving security policy and capability information from the receiving UE.
    Type: Application
    Filed: August 12, 2024
    Publication date: December 5, 2024
    Inventors: Shu Guo, Xiangying Yang, Yuqin Chen, Fangli Xu, Zhibin Wu, Dawei Zhang, Huarui Liang, Haijing Hu
  • Patent number: 12160783
    Abstract: Provided is a method for a user equipment. The method includes starting performing a handover (HO) with a target Primary Secondary Cell (PSCell) in response to receiving an HO command instructing the HO with the target PSCell, wherein the HO with the target PSCell comprises target PSCell addition/change, and performing the target PSCell addition/change in response to receiving a trigger message from a target Primary Cell (PCell) or sending a trigger message to the target PCell, wherein the trigger message is a message transmitted between the UE and the target PCell during the HO with the target PSCell.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: December 3, 2024
    Assignee: APPLE INC.
    Inventors: Jie Cui, Qiming Li, Yang Tang, Manasa Raghavan, Xiang Chen, Huaning Niu, Dawei Zhang, Hong He, Fangli Xu, Haitong Sun
  • Publication number: 20240397395
    Abstract: Methods and apparatus are disclosed for a UE and its serving base station to coordinate the activation and deactivation of measurement gaps for performing positioning measurements by the UE using target positioning reference signals (PRS) during bandwidth part (BWP) switching. The UE may be configured by the serving base station to have dedicated measurement gaps. The UE determines if a legacy measurement gap used for mobility measurements or a scheduled data transmission collides with the dedicated measurement gaps. If there is a collision, the UE performs the mobility measurement using the legacy measurement gap or transmits the scheduled data. If there is no collision, the UE receives the PRS to perform the positioning measurement during the dedicated measurement gaps. In one embodiment, based on the status of the active BWP and the target PRS, the UE or the base station may activate or deactivate measurement gaps for the positioning measurements.
    Type: Application
    Filed: August 1, 2024
    Publication date: November 28, 2024
    Inventors: Jie Cui, Fangli Xu, Dawei Zhang, Hong He, Murtaza A. Shikari, Yang Tang, Yuchul Kim, Zhibin Wu
  • Publication number: 20240397520
    Abstract: An approach to reduce the signaling overhead for tracking reference signal (TRS) configuration signaling to idle and inactive user equipments (UEs) operating in a wireless communication system. Conventional signaling approaches require more bits that can be conveyed in the maximum system information block (SIB) message size. One proposed approach optimizes the signaling by removing unnecessary or redundant information, using a single TRS configuration to replace multiple configurations, size reduction in some fields, and the sharing of some fields across different TRS configurations. Another proposed approach uses an SIB message to carry the TRS configurations for a particular beam or subset of beams. These two proposed approaches may be combined to provide further optimization possibilities.
    Type: Application
    Filed: August 5, 2024
    Publication date: November 28, 2024
    Applicant: Apple Inc.
    Inventors: Fangli XU, Sethuraman GURUMOORTHY, Huaning NIU, Yushu ZHANG, Chunhai YAO, Wei ZENG, Haitong SUN, Weidong YANG, Dawei ZHANG, Sigen YE
  • Patent number: 12156255
    Abstract: A user equipment (UE) device may perform random access to a base station in the context where propagation delay between the base station and the UE device is large. The UE device randomly selects a random access preamble from an available set of preambles. The UE device selects a time slot for transmission of the random access preamble based on a configured correspondence between allowable time slots and subsets of the available set. The UE device transmits the random access preamble to a base station in the selected time slot, with timing advance to compensate for a common delay. Thus, the base station, knowing the configured correspondence, is able to determine the time slot in which the random access preamble was transmitted. The UE device receives a random access response that has been addressed with a Random Access Radio Network Temporary Identifier (RA-RNTI).
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: November 26, 2024
    Assignee: Apple Inc.
    Inventors: Sarma V. Vangala, Tarik Tabet, Chunxuan Ye, Dawei Zhang, Fangli Xu, Haijing Hu, Murtaza A Shikari, Naveen Kumar R Palle Venkata, Rafael L Rivera-Barreto, Ralf Rossbach, Sreevalsan Vallath, Srinivasan Nimmala, Wei Zeng, Yuqin Chen, Zhibin Wu
  • Patent number: 12155595
    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 PDSCH and PDCCH channels. The UE may use the configuration parameters to receive PDSCH and PCCCH that are coverage enhanced using time repetitions and frequency hopping. 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: September 30, 2022
    Date of Patent: November 26, 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
  • Patent number: 12156114
    Abstract: Systems and methods for using a relay user equipment (UE) to transport data of interest received from a first remote UE to a second remote UE on a UE to UE relay within a wireless communication system are discussed herein. These methods may be performed at Layer 2 of a protocol stack of the wireless communication system. Data packets sent on the UE to UE relay may include an adaptation header including routing information (e.g., Layer 2 addresses, a bearer-specific index, etc.) for the UE to UE relay. An adaptation layer may accordingly be provided within Layer 2 to decode these adaptation headers. In some cases, a per-bearer approach may be used to map between individual direct bearers of a hop by hop path configuration of the UE to UE relay. Embodiments eschewing the adaptation header and instead using logical channel identifiers (LCIDs) to make routing indications are also described.
    Type: Grant
    Filed: October 26, 2023
    Date of Patent: November 26, 2024
    Assignee: APPLE INC.
    Inventors: Zhibin Wu, Chunxuan Ye, Dawei Zhang, Fangli Xu, Haijing Hu, Haitong Sun, Wei Zeng, Yuqin Chen
  • Publication number: 20240388388
    Abstract: The present application relates to devices and components, including apparatus, systems, and methods for selecting timer values and starting or stopping timers related to configured grant or discontinuous reception.
    Type: Application
    Filed: April 19, 2024
    Publication date: November 21, 2024
    Applicant: Apple Inc.
    Inventors: Ping-Heng Kuo, Fangli Xu, Zhibin Wu, Ralf Rossbach, Naveen Kumar R. Palle Venkata, Sethuraman Gurumoorthy, Peng Cheng, Yuqin Chen, Haijing Hu, Alexander Sirotkin
  • Publication number: 20240388895
    Abstract: The present application relates to devices and components including apparatus, systems, and methods to configure a UE for dual connectivity. In an example, a network node requests the UE to indicate the capability it supports for the dual connectivity. This request can implicitly or explicitly indicate that the UE should report carrier grouping information. In response, this information is sent by the UE, and the network node can configure an MCG and an SCG for the UE based on the reported carrier grouping information.
    Type: Application
    Filed: July 16, 2024
    Publication date: November 21, 2024
    Applicant: Apple Inc.
    Inventors: Naveen Kumar R. Palle Venkata, Fangli Xu, Dawei Zhang, Haijing Hu, Yuqin Chen
  • Patent number: 12150014
    Abstract: This disclosure relates to techniques for providing broadcast and multicast services to wireless devices while in Idle and Inactive modes a wireless communication system. A wireless device may establish a wireless link with a cellular base station of a cellular network. The wireless device may receive information indicating whether provision of a broadcast or multicast service in one or more of an inactive mode or an idle mode is supported by the cellular network. The wireless device may receive the broadcast or multicast service in one or more of the inactive mode or the idle mode based at least in part on the information indicating whether provision of the broadcast or multicast service in one or more of the inactive mode or the idle mode is supported by the cellular network.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: November 19, 2024
    Assignee: Apple Inc.
    Inventors: Fangli Xu, Ralf Rossbach, Haijing Hu, Dawei Zhang, Yuqin Chen, Zhibin Wu, Sarma V. Vangala, Srinivasan Nimmala, Murtaza A. Shikari, Srirang A. Lovlekar, Sethuraman Gurumoorthy, Naveen Kumar R. Palle Venkata, Sudeep Manithara Vamanan
  • Patent number: 12149371
    Abstract: A user equipment (UE) is configured to deactivate/activate a point-to-multipoint (PTM) link of a multicast radio bearer (MRB). The UE receives, from a base station of a wireless network, a multicast radio bearer (MRB) configuration, wherein the MRB includes configuration of a split MRB including a point to multipoint (PTM) link and a point to point (PTP) link, deactivates or activates the PTM link based on the MRB configuration, reestablishes a radio link control (RLC) associated with the PTM link and recovers a packet data convergence protocol (PDCP).
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: November 19, 2024
    Assignee: Apple Inc.
    Inventors: Fangli Xu, Dawei Zhang, Haijing Hu, Naveen Kumar R. Palle Venkata, Ralf Rossbach, Sarma V. Vangala, Sethuraman Gurumoorthy, Srirang A. Lovlekar, Yuqin Chen, Zhibin Wu
  • Patent number: 12149966
    Abstract: Apparatuses, systems, and methods for beam indication latency reduction via symbol level beam sweeping capability reporting. A wireless device may transmit, to a base station, a report associated with symbol level beam sweeping. The wire wireless device may receive, from the base station, a symbol level beam sweeping configuration. The symbol level beam sweeping configuration may be based, at least in part, on the report. The wireless device may perform synchronization signal block (SSB) measurements according to the report and the symbol level beam sweeping configuration.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: November 19, 2024
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Dawei Zhang, Fangli Xu, Haijing Hu, Haitong Sun, Huaning Niu, Jie Cui, Manasa Raghavan, Wei Zeng, Weidong Yang, Yakun Sun, Yang Tang
  • Publication number: 20240381150
    Abstract: A UE may coordinate the use of a low Power Wake-Up Radio (LR) and a main radio (MR) to determine a Radio Resource Management (RRM) measurement. The UE may enter a deep sleep state by turning off a MR and turning on a LR. The UE may measure the serving cell quality when in the deep sleep state, and enter a normal state by turning on the MR, when the serving cell quality is less than a threshold. The UE may perform a neighbor cell measurement, when in the normal state when a serving cell measurement meets a criteria.
    Type: Application
    Filed: May 8, 2024
    Publication date: November 14, 2024
    Inventors: Fangli Xu, Haijing Hu, Naveen Kumar R Palle Venkata, Yuqin Chen, Sigen Ye, Peng Cheng, Zhibin Wu, Alexander Sirotkin, Ping-Heng Kuo, Ralf Rossbach
  • Publication number: 20240381167
    Abstract: The present application relates to devices and components, including apparatus, systems. and methods for buffer status reporting in wireless networks.
    Type: Application
    Filed: April 11, 2024
    Publication date: November 14, 2024
    Applicant: APPLE INC.
    Inventors: Ping-Heng Kuo, Weidong Yang, Zhibin Wu, Fangli Xu, Ralf Rossbach, Peng Cheng, Yuqin Chen, Naveen Kumar R. Palle Venkata, Sethuraman Gurumoorthy, Haijing Hu, Alexander Sirotkin
  • Publication number: 20240381261
    Abstract: A user equipment (UE) may include a main radio (MR) and a Low Power Wake-Up Radio (LR). The UE may coordinate periods where the MR and LR are on and off. For example, the UE may enter a deep sleep state by turning off a main radio (MR) of the UE, and turning on a Low Power Wake-Up Radio (LR) of the UE. The MR may receive an event indication from the LR to turn on the MR. The MR may turn on and perform a procedure according to an event corresponding to the event indication.
    Type: Application
    Filed: May 8, 2024
    Publication date: November 14, 2024
    Inventors: Fangli Xu, Sigen Ye, Dan Wu, Dawei Zhang, Haijing Hu
  • Patent number: 12143325
    Abstract: User equipment (UE) operation in a single frequency network (SFN). The UE may receive one or more transmission configuration indication (TCI) states corresponding to one or more downlink resources, receive a demodulated reference signal (DMRS) wherein the DMRS is quasi co-located (QCLed) with one or more channel state information reference signal (CSI-RS) from multiple cells of a SFN and quasi co-location (QCL) information is included in the one or more TCI and determine a time and frequency offset corresponding to each of the multiple cells based on the CSI-RS.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: November 12, 2024
    Assignee: Apple Inc.
    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: 12143995
    Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing techniques for a user equipment (UE) to transmit a configured grant (CG) physical uplink shared channel (PUSCH) including an uplink control information (UCI) without transmitting a physical uplink control channel (PUCCH). The UE determines, based on a configuration received from the base station, a first set of CG PUSCHs. Each CG PUSCH of the first set of CG PUSCHs overlaps with the PUCCH, and is configured to transmit data from the UE to the base station. The UE further determines a second set of CG PUSCHs by excluding a third set of CG PUSCHs from the first set of CG PUSCHs. and select a CG PUSCH from the second set of CG PUSCHs to carry the UCI contained in the PUCCH. The UE further transmits the selected CG PUSCH including the UCI without transmitting the PUCCH.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: November 12, 2024
    Assignee: Apple Inc.
    Inventors: Wenshu Zhang, Weidong Yang, Fangli Xu, Wei Zeng, Dawei Zhang, Chunhai Yao, Yushu Zhang, Oghenekome Oteri, Seyed Ali Akbar Fakoorian, Sigen Ye, Ralf Rossbach
  • Patent number: 12144056
    Abstract: SL-DRX involves both Uu and PC5 interfaces. For an RRC_CONNECTED UE (also referred to as a connected mode UE, or simply connected UE), several SL-DRX enhancements are described in this disclosure to trigger SL DRX and share configurations. Alignment of SL-DRX alignment with Uu-DRX (referred to as Uu/SL DRX alignment or simply alignment) is also described, as an optional feature (since not all schedules can temporally align).
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: November 12, 2024
    Assignee: APPLE INC.
    Inventors: Zhibin Wu, Chunxuan Ye, Dawei Zhang, Fangli Xu, Haijing Hu, Haitong Sun, Wei Zeng, Yuqin Chen
  • Patent number: 12143950
    Abstract: This disclosure relates to techniques for handling timing alignment for configured grant based small data transmissions in inactive mode in a wireless communication system. A wireless device may establish a radio resource control connection with a cellular base station. The wireless device may receive an indication to release the radio resource control connection. The indication to release the radio resource control connection may configure resources for performing uplink transmissions while in the radio resource control inactive mode. A timing advance may be maintained while in the radio resource control inactive mode. An uplink transmission may be performed using resources configured for performing uplink transmissions while in the radio resource control inactive mode. The uplink transmission may be performed using the timing advance.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: November 12, 2024
    Assignee: Apple Inc.
    Inventors: Fangli Xu, Ralf Rossbach, Dawei Zhang, Haijing Hu, Sarma V. Vangala, Murtaza A. Shikari, Srinivasan Nimmala