Patents by Inventor Jianfei CAO

Jianfei CAO 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: 20230123593
    Abstract: Provided are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device for wireless communication comprises a processing circuit, wherein the processing circuit is configured to: receive, from a base station serving the electronic device, downlink signals for detecting whether beams have faults; and to determine, when the number of instances of the channel quality represented by any downlink signal from among the downlink signals being lower, by a predetermined deviation value, than the channel quality represented by a candidate downlink signal, which is determined by the electronic device, reaches a first count value, that a beam, which corresponds to the any downlink signal, is a faulty beam, and to send a beam fault recovery request to the base station, so as to recover the faulty beam.
    Type: Application
    Filed: April 19, 2021
    Publication date: April 20, 2023
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Patent number: 11632212
    Abstract: An apparatus and method in a wireless communication system and a computer readable storage medium. The apparatus comprises a processing circuit, which is configured to: configure a sounding reference signal (SRS) mapping structure for a user equipment on the basis of at least the number of antenna ports of the user equipment and the number of transmitting beams and/or receiving beams to be scanned; and notify the user equipment of the SRS mapping structure, wherein the SRS mapping structure at least comprises SRS resource settings for achieving uplink beam management and channel state information (CSI) acquisition at the same time, thereby reducing the system time delay and improving the uplink resource utilization rate.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: April 18, 2023
    Assignee: SONY GROUP CORPORATION
    Inventors: Jin Xu, Dongru Li, Hang Yang, Xiaofeng Tao, Jianfei Cao
  • Publication number: 20230102698
    Abstract: The present invention relates to a network device, a user equipment, a wireless communication method and a storage medium. The network device comprises a processing circuit, configured to: provide to the user equipment a transmitted beam for sending an uplink signal from a plurality of transmitted beams on a plurality of antenna boards of the user equipment, and generate configuration information which indicates the transmitted beam for sending the uplink signal. By means of the network device, the user equipment, the wireless communication method and the storage medium, the network device can inform the user equipment of the selected uplink transmitted beam in the case that the user equipment is provided with a plurality of antenna boards, so as to optimize the process of determining the uplink transmitted beam.
    Type: Application
    Filed: December 6, 2022
    Publication date: March 30, 2023
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Publication number: 20230096215
    Abstract: Provided are an electronic device and a method for wireless communication, and a computer-readable storage medium. The electronic device comprises: a processing circuit, configured to: send, by means of radio resource control signaling, configuration information of a universal transmission configuration indication state to a user equipment, wherein the universal transmission configuration indication state comprises a transmission configuration indication state of a downlink beam of a serving cell of the user equipment and a transmission configuration indication state of a downlink beam of a non-serving cell other than the serving cell; and determine activation information of a downlink beam of a target cell, wherein the user equipment is to be switched to the target cell.
    Type: Application
    Filed: February 18, 2021
    Publication date: March 30, 2023
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Publication number: 20230064870
    Abstract: An electronic device and method for wireless communication system, and a storage medium. In the method, reference signal are carried merely on a part of communication sources for channel estimation, channel states on the communication resources carrying the reference signal are estimated, and conditions of channel paths from a transmitter to a receiver are estimated by using the estimated channel states of the communication resources. Thereby, channel states on other communication resources from the transmitter to the receiver can be obtained from the estimated channel path conditions.
    Type: Application
    Filed: November 4, 2022
    Publication date: March 2, 2023
    Applicant: Sony Group Corporation
    Inventors: Ziyuan SHA, Zhaocheng WANG, Jianfei CAO
  • Publication number: 20230051732
    Abstract: The disclosure relates to an electronic device and method for a wireless communication system, and a storage medium. Various embodiments regarding beam management are described. In one embodiment, an electronic device for a terminal device side in a wireless communication system can comprise a processing circuit system. The processing circuit system can be configured to obtain random access configuration information, and send a random access preamble based on the random access configuration information, so as to indicate one or more transmission beams of a base station side, in a downlink, paired with one or more receiving beams at the terminal device side.
    Type: Application
    Filed: November 4, 2022
    Publication date: February 16, 2023
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Publication number: 20230044880
    Abstract: Provided are an electronic device for wireless communication, a method, and a computer readable storage medium. The electronic device comprises: a processing circuit, configured to obtain configuration information of a unified transmission configuration indication state from a base station, the unified transmission configuration indication state being used for indicating both a downlink beam and an uplink beam; and to execute a beam management-related operation on the basis of the configuration information.
    Type: Application
    Filed: February 22, 2021
    Publication date: February 9, 2023
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Patent number: 11552756
    Abstract: An electronic device and method for wireless communication system, and a storage medium. In the method, reference signal are carried merely on a part of communication sources for channel estimation, channel states on the communication resources carrying the reference signal are estimated, and conditions of channel paths from a transmitter to a receiver are estimated by using the estimated channel states of the communication resources. Thereby, channel states on other communication resources from the transmitter to the receiver can be obtained from the estimated channel path conditions.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: January 10, 2023
    Assignee: SONY CORPORATION
    Inventors: Ziyuan Sha, Zhaocheng Wang, Jianfei Cao
  • Publication number: 20220417918
    Abstract: The present disclosure relates to an electronic device, a method, and a storage medium for a wireless communication system. Various embodiments for setting guard periods for downlink-to-uplink switching are described. An embodiment relates to an electronic device for a base station used in a TDD communication system, and the electronic device comprises a processing circuit. The processing circuit is configured to: set a first guard period for downlink-to-uplink switching for a first terminal device in a first cell; and set a second guard period for downlink-to-uplink switching for a second terminal device in the first cell, wherein the second guard period for downlink-to-uplink switching is different from the first guard period for downlink-to-uplink switching.
    Type: Application
    Filed: December 22, 2020
    Publication date: December 29, 2022
    Applicant: Sony Group Corporation
    Inventors: Zhengyi ZHOU, Zhaocheng WANG, Ning GE, Jianfei CAO
  • Publication number: 20220407640
    Abstract: The present disclosure relates to an electronic device and communication method. An electronic device used in a first terminal device side is configured for acquiring configuration information of reference signals of a second cell from a first control device of a first cell, measuring the reference signals based on the configuration information and feeding back information indicating the space beams in the second cell interfering with the first terminal device to the first control device.
    Type: Application
    Filed: August 23, 2022
    Publication date: December 22, 2022
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Publication number: 20220400431
    Abstract: Provided are an electronic device and a method for wireless communication, and a computer-readable storage medium. The electronic device for wireless communication comprises a processing circuit, wherein the processing circuit is configured to: when it is determined that the electronic device is an overload electronic device with the load thereof being greater than a predetermined threshold value, perform load balancing on the basis of a first beam power of a first beam which is scanned for the initial access of a user equipment and is received by a first user equipment from each adjacent electronic device of at least one adjacent electronic device of the overload electronic device, so as to determine whether the overload electronic device needs to be associated with the first user equipment.
    Type: Application
    Filed: March 9, 2021
    Publication date: December 15, 2022
    Applicant: Sony Group Corporation
    Inventors: Zhengyi ZHOU, Zhaocheng WANG, Ning GE, Jianfei CAO
  • Publication number: 20220393750
    Abstract: An electronic device and method for wireless communication, the method including detecting a beam quality of a currently serving beam; starting a prediction window when the detected beam quality is within a particular range, and evaluating the beam quality of the currently serving beam within the prediction window.
    Type: Application
    Filed: August 18, 2022
    Publication date: December 8, 2022
    Applicant: Sony Group Corporation
    Inventors: Jin XU, Wenjing REN, Dongru LI, Hang YANG, Xiaofeng TAO, Jianfei CAO
  • Patent number: 11515915
    Abstract: The disclosure relates to an electronic device and method for a wireless communication system, and a storage medium. Various embodiments regarding beam management are described. In one embodiment, an electronic device for a terminal device side in a wireless communication system can comprise a processing circuit system. The processing circuit system can be configured to obtain random access configuration information, and send a random access preamble based on the random access configuration information, so as to indicate one or more transmission beams of a base station side, in a downlink, paired with one or more receiving beams at the terminal device side.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: November 29, 2022
    Assignee: SONY CORPORATION
    Inventor: Jianfei Cao
  • Publication number: 20220376862
    Abstract: The present disclosure relates to an electronic device, a wireless communication method, and a computer-readable medium. According to one embodiment, provided is an electronic device comprising a processing circuit and used for a user equipment side; the processing circuit is configured to control to transmit a non-precoded first uplink reference signal, receive feedback by a base station regarding the first uplink reference signal, and sending, on the basis of said feedback, a pre-coded second uplink reference signal.
    Type: Application
    Filed: July 20, 2022
    Publication date: November 24, 2022
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Patent number: 11503504
    Abstract: An electronic device for a backhaul network, wherein the backhaul network comprises a first communication apparatus connected to a core network and a plurality of second communication apparatuses performing wireless communication with the first communication apparatus, includes: processing circuitry configured to perform control to cause the first communication apparatus comprising the electronic device to: operate as a primary donor; select at least one second communication apparatus of the plurality of second communication apparatuses as a secondary donor; transmit a first indicating signal to the selected at least one second communication apparatus, the first indicating signal comprising node type information indicating the secondary donor; transmit a second indicating signal to a second communication apparatus that are not selected, the second indicating signal comprising node type information indicating a member node.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: November 15, 2022
    Assignee: SONY GROUP CORPORATION
    Inventors: Zhengyi Zhou, Zhaocheng Wang, Ning Ge, Jianfei Cao
  • Patent number: 11496188
    Abstract: An electronic device operating on a base station side and includes a processing circuit configured to perform control to cause the electronic device to: estimate channel correlation in a first direction among a plurality of terminals communicating with the base station; and in response to that the estimated channel correlation in the first direction among the plurality of terminals satisfies a predetermined condition, transmit a first indication signal to indicate that a second measurement process is to be performed to determine channel information in a second direction after a first measurement process is to be performed to determine channel information in the first direction, and transmit, based on the channel information in the second direction, a second indication signal to indicate a precoding scheme for data to be transmitted from the base station to the plurality of terminals, the precoding scheme including linear precoding or non-linear precoding.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: November 8, 2022
    Assignee: SONY GROUP CORPORATION
    Inventors: Wendong Liu, Zhaocheng Wang, Jianfei Cao
  • Publication number: 20220352945
    Abstract: Disclosed are electronic devices and communication methods. An electronic device comprises a processing circuit, the processing circuit being configured to: receive an RRC signaling and/or a MAC CE signaling from a control-side electronic device; determine, based on a first beam indication information of control channel in the RRC signaling and/or the MAC CE signaling, an activated beam for performing a transmission in the physical control channel with the control-side electronic device; rewrite the activated beam based on a second beam indication information of control channel included in a downlink control information (DCI) carried by a physical downlink control channel (PDCCH); and use the rewritten activated beam to perform the transmission in the physical control channel with the control-side electronic device.
    Type: Application
    Filed: July 15, 2022
    Publication date: November 3, 2022
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Publication number: 20220338023
    Abstract: An electronic device includes a processing circuit, configured to: configure one or multiple CMR and one or multiple IMR, and use a transmission beam corresponding to the one or multiple CMR to send a downlink signal to a user device, such that the user device: uses a receiving beam to receive the downlink signal from the transmission beam; determines the signal power on the basis of the signal quality measured on the CMR and determines the interference power on the basis of the signal quality measured on the IMR; and, on the basis of the signal power and the interference power, determines the signal-to-noise ratio between the transmission beam and the receiving beam. The device and process enables a network side device and the user device can more rationally select a transmission beam and a receiving beam.
    Type: Application
    Filed: September 30, 2020
    Publication date: October 20, 2022
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Publication number: 20220337364
    Abstract: Provided are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device comprises: a processing circuit configured to: determine a first aperiodic sounding reference signal resource, the beam transmission direction of which is updated by first MAC CE signaling; and re-determine a path loss reference signal for the first aperiodic sounding reference signal resource on the basis of beam transmission direction information of the first aperiodic sounding reference signal resource in the first MAC CE signaling, or second MAC CE signaling.
    Type: Application
    Filed: October 9, 2020
    Publication date: October 20, 2022
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Patent number: 11456795
    Abstract: An electronic device and method for wireless communication, the method including detecting a beam quality of a currently serving beam; starting a prediction window when the detected beam quality is within a particular range, and evaluating the beam quality of the currently serving beam within the prediction window.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: September 27, 2022
    Assignee: SONY CORPORATION
    Inventors: Jin Xu, Wenjing Ren, Dongru Li, Hang Yang, Xiaofeng Tao, Jianfei Cao