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: 20230189237
    Abstract: Provided are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device comprises: a processing circuit which is configured to: send downlink reference signal resource configuration information to a user equipment, so as to perform downlink beam scanning, wherein the downlink reference signal resource configuration information comprises information of a transmit receive point that transmits a downlink transmission beam; and receive a packet-based beam quality report from the user equipment, wherein the packet-based beam quality report is used for a network side to determine, for the user equipment, a group of downlink transmission beams which can be simultaneously transmitted and can be simultaneously received by the user equipment.
    Type: Application
    Filed: July 30, 2021
    Publication date: June 15, 2023
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Patent number: 11671152
    Abstract: An electronic device at a base station end includes a processing circuit, the processing circuit being configured to: configure, in response to request signalling from a user equipment, an aperiodic beam-forming reference signal relevant to a first beam group for the user equipment, wherein the first beam group is determined by a base station according to channel state information periodically fed back by the user equipment; generate downlink control information, so as to indicate that the user equipment feeds back beam selection information according to the aperiodic beam-forming reference signal; determine, according to the beam selection information, one or a plurality of candidate beams and one or a plurality of corresponding second pre-coding codebooks; and determine an effective pre-coding codebook based on the one or multiple second pre-coding codebooks.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: June 6, 2023
    Assignee: SONY GROUP CORPORATION
    Inventors: Jin Xu, Cheng Gao, Siqi Liu, Chaonan He, Jianfei Cao
  • Patent number: 11664944
    Abstract: Disclosed are an electronic apparatus, a radio communication method and a computer-readable medium. The electronic apparatus for radio communication according to one embodiment comprises a processing circuit. The processing circuit is configured to: determine a time length of a sending window of a discovery reference signal based on a target number of candidate positions of a synchronous signal block of the discovery reference signal and a subcarrier spacing; and control the sending of the discovery reference signal based on the determined time length.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: May 30, 2023
    Assignee: SONY CORPORATION
    Inventors: Tao Cui, Jianfei Cao
  • Publication number: 20230156617
    Abstract: Provided are a device and method for a wireless communication system, and a computer readable storage medium. The device comprises a processing circuit. The processing circuit is configured to: acquire the current three-dimensional spatial location of a user equipment, and determine a resource for the user equipment according to information showing a mapping relationship at least between three-dimensional spatial regions and resources. According to an aspect of the embodiment of the present disclosure, time delay can be decreased and transmission performance can be optimized by pre-establishing a mapping relationship between three-dimensional spatial regions and resources and assigning to the user equipment an uplink/downlink time-frequency resource on the basis of the mapping relationship.
    Type: Application
    Filed: January 5, 2023
    Publication date: May 18, 2023
    Applicant: Sony Group Corporation
    Inventors: Wenbo ZHANG, Jianfei CAO
  • Patent number: 11641257
    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: Grant
    Filed: July 20, 2022
    Date of Patent: May 2, 2023
    Assignee: SONY GROUP CORPORATION
    Inventor: Jianfei Cao
  • Patent number: 11637596
    Abstract: An electronic device for a base station in a wireless communication system including processing circuitry configured to indicate a user equipment to report a first type of channel statement information based on a reference signal for the first type of channel statement information, wherein the base station serves the user equipment in a way of SU-MIMO, make a determination that a second type of channel statement information is required in a case that the base station changes the way serving the user equipment from SU-MIMO to MU-MIMO, and notify the user equipment to report the second type of channel statement information based on a reference signal for the second type of channel statement information.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: April 25, 2023
    Assignee: SONY GROUP CORPORATION
    Inventors: Jin Xu, Chaonan He, Jianfei Cao
  • 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