Patents by Inventor Chunhai LI

Chunhai LI 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: 11991771
    Abstract: Inter-cell mobility may include decoding a first radio resource control (RRC) reconfiguration message received from a first cell. The first RRC reconfiguration message may comprise a first portion of configuration information for performing a cell change to a second cell. A cell change message received from the first cell may be decoded. The cell change message may indicate that a cell change to the second cell is to be performed. A cell change acknowledgment may be encoded for transmission to the second cell. A second RRC reconfiguration message received from the second cell may be decoded. The second RRC reconfiguration message may comprise a second portion of configuration information for performing the cell change to the second cell. The second portion of configuration information may comprise a remaining portion of configuration information to perform the cell change to the second cell.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: May 21, 2024
    Assignee: APPLE INC.
    Inventors: Fangli Xu, Chunhai Yao, Dawei Zhang, Haijing Hu, Qiming Li, Wei Zeng, Yang Tang, Yuqin Chen, Yushu Zhang
  • Patent number: 11979760
    Abstract: A user equipment (UE) monitors a Physical Downlink Control Channel (PDCCH) in multiple component carriers (CC). The UE determines if the UE is operating in carrier aggregation (CA) mode having a first CC in a first frequency band and a second CC in a second frequency band. When the UE is operating in CA with a first CC in the first frequency band and the second CC in the second frequency band, the UE determines a span pattern for PDCCH symbols being received on the first and second CC and selects a PDCCH monitoring type based on, at least, the span pattern. A UE also determines if a first CC and a second CC of a CA combination are collocated and selects a PDCCH monitoring type based on, at least, the determination of whether the first and second CC are collocated.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: May 7, 2024
    Assignee: Apple Inc.
    Inventors: Weidong Yang, Amir Farajidana, Chunhai Yao, Chunxuan Ye, Dawei Zhang, Haitong Sun, Hong He, Jie Cui, Keith W. Saints, Linbo Li, Oghenekome Oteri, Sigen Ye, Wei Zeng, Wei Zhang, Yang Tang, Yushu Zhang
  • Patent number: 11963058
    Abstract: Apparatuses, systems, and methods for performing dual active protocol stack handovers in a frequency range above 24 GHz. A UE may transmit an indication to a base station indicating a dual active protocol stack (DAPS) handover capability of the UE corresponding to a frequency range (FR) above 24 GHz. The UE may receive, from a target cell of the one or more cells, a command to perform a DAPS handover from a source cell to the target cell. While performing the DAPS handover and maintaining a data connection with the source cell, the UE may perform measurements on the target cell followed by a physical random access channel (PRACH) procedure. The UE may then receive a source cell release command from the target cell and release the data connection with the source cell.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: April 16, 2024
    Assignee: Apple Inc.
    Inventors: Qiming Li, Chunhai Yao, Dawei Zhang, Huaning Niu, Jie Cui, Manasa Raghavan, Xiang Chen, Yang Tang, Yushu Zhang
  • Patent number: 11963056
    Abstract: Layer 2 handling during a cell change procedure includes decoding an RRC reconfiguration message received from a first cell. The RRC reconfiguration message includes a Layer 1 (L1) configuration corresponding to a second cell. The first cell and the second cell share an SDAP entity, a PDCP entity, an RLC entity, and a MAC entity. The first cell and the second cell have a separate L1 entity. In response to decoding the RRC reconfiguration message, the L1 configuration corresponding to the second cell is stored. A cell change message received from the first cell is decoded. The cell change message indicates that a cell change from the first cell to the second cell is to be performed. The stored L1 configuration corresponding to the second cell is applied for data transmission and reception associated with the second cell. A cell change to the second cell is initiated.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: April 16, 2024
    Assignee: APPLE INC.
    Inventors: Fangli Xu, Chunhai Yao, Dawei Zhang, Haijing Hu, Qiming Li, Wei Zeng, Yang Tang, Yuqin Chen, Yushu Zhang
  • Publication number: 20240107388
    Abstract: Apparatuses, systems, and methods for determining timing advance in L1/L2 inter-cell mobility. A user equipment (UE) comprises at least one antenna, at least one radio coupled to the at least one antenna, and a processor coupled to the at least one radio. The processor is configured to receive a Time advance (TA) indicator together with a handover command from a source base station in a source coverage, wherein the TA indicator comprises information for determining a TA used for an uplink transmission with a target base station in a target coverage, the handover command is a Layer 1 handover command or a Layer 2 handover command, and the source coverage and the target coverage are identified by different Physical Cell identifiers; and in response to the handover command, determine the TA used for the uplink transmission with the target base station based on the information.
    Type: Application
    Filed: April 2, 2021
    Publication date: March 28, 2024
    Inventors: Qiming Li, Yushu Zhang, Chunhai Yao, Fangli Xu, Yuqin Chen, Dawei Zhang, Jie Cui, Manasa Raghavan, Xiang Chen, Huaning Niu, Yang Tang
  • Publication number: 20240107610
    Abstract: Techniques discussed herein can facilitate back-off mechanisms for inter-cell mobility. One example aspect is a baseband processor configured to: receive a unified transmission configuration indicator (TCI) from a first serving cell where the unified TCI is associated with a second serving cell; in response to receiving the unified TCI, transmit an ACK message to the first serving cell; communicate with the second serving cell; configure a time window subsequent to transmission of the ACK message; and perform a fallback operation when a dedicated signaling from the second serving cell is not received within the time window.
    Type: Application
    Filed: May 10, 2021
    Publication date: March 28, 2024
    Inventors: Yushu Zhang, Chunhai Yao, Dawei Zhang, Fangli Xu, Haitong Sun, Jie Cui, Qiming Li, Wei Zeng, Yuqin Chen
  • Publication number: 20240072862
    Abstract: Embodiments of the present disclosure relate to uplink transmission with repetitions. According to embodiments of the present disclosure, a user equipment (UE) comprises a transceiver configured to communicate with a network; and a processor communicatively coupled to the transceiver and configured to perform operations. The operations comprise determining first Channel State Information (CSI) and second CSI based on at least one of a previous channel and interference measurement or a latest channel and interference measurement. The operations further comprise transmitting the first CSI via the transceiver to the network with a first beam, the first CSI multiplexed with a first repetition of an uplink transmission with the first beam. The operations further comprise transmitting the second CSI via the transceiver to the network with a second beam, the second CSI multiplexed with a second repetition of the uplink transmission with the second beam.
    Type: Application
    Filed: April 6, 2021
    Publication date: February 29, 2024
    Inventors: Yushu ZHANG, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Haitong SUN, Hong HE, Huaning NIU, Jie CUI, Manasa RAGHAVAN, Qiming LI, Seyed Ali Akbar FAKOORIAN, Sigen YE, Wei ZENG, Weidong YANG
  • Publication number: 20240073748
    Abstract: A method for a network element is provided. The method comprises: encoding a message for transmission to a user equipment (UE) including neighbor cell configuration information that includes a list of a plurality of neighbor cell groups, wherein each of the plurality of neighbor cell groups is associated with a specific cell; and transmitting the message to the UE.
    Type: Application
    Filed: April 2, 2021
    Publication date: February 29, 2024
    Inventors: Qiming Li, Jie Cui, Yang Tang, Fangli Xu, Yuqin Chen, Yushu Zhang, Chunhai Yao, Dawei Zhang, Manasa Raghavan, Xiang Chen
  • Publication number: 20230294488
    Abstract: The disclosure relates to the technical field of vehicles, and particularly provides a vehicle, a method and system for drying an evaporator of a vehicle air conditioner, and a storage medium, aiming to solve the problems of low efficiency and poor effects of an existing method for drying an evaporator of a vehicle air conditioner.
    Type: Application
    Filed: March 14, 2023
    Publication date: September 21, 2023
    Inventors: Chunhai LI, Ruipo ZHAO, Fang HAN, Jiachen ZHANG, Jie GAO
  • Publication number: 20230294484
    Abstract: The disclosure relates to the field of electric vehicles, and in particular provides a vehicle refrigerator control method, a storage medium, and a vehicle, aiming to solve the problems of how to implement the intelligent identification of items stored in a vehicle refrigerator, and of controlling the vehicle refrigerator based on information of the stored item and vehicle state information. To this end, the method of the disclosure includes: obtaining item information of a vehicle refrigerator; obtaining a real-time temperature and a target temperature of the vehicle refrigerator; obtaining vehicle state information; and controlling the vehicle refrigerator based on the real-time temperature, the target temperature, and the vehicle state information.
    Type: Application
    Filed: March 16, 2023
    Publication date: September 21, 2023
    Inventors: Fang HAN, Wanli SHAO, Xiao DING, Chunhai LI, Jiachen ZHANG