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: 20220131576
    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: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Applicant: Sony Group Corporation
    Inventors: Jin XU, Chaonan HE, Jianfei CAO
  • Patent number: 11303331
    Abstract: A communication device includes a processing circuit, the processing circuit being configured as: mapping a first information bit part used for a receiving end to a corresponding channel based on a pre-set mapping rule so as to execute spatial modulation with respect to the first information bit part of the receiving end; allocating a transmission power to the receiving end; and controlling the transmission power allocated through a mapped channel to transmit a second information bit part used for the receiving end. In the case of the first information bit parts used for multiple receiving ends being the same, the channels mapped for multiple receiving ends are the same. The multi-user spatial modulation performs spatial modulation for multiple receiving ends at the same time through a multiplexing channel of the transmitting end, improving the additional modulation order and the data transmission rate which can be obtained by each receiving end.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: April 12, 2022
    Assignee: SONY CORPORATION
    Inventors: Xudong Zhu, Zhaocheng Wang, Jianfei Cao
  • Patent number: 11290161
    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: January 20, 2021
    Date of Patent: March 29, 2022
    Assignee: SONY CORPORATION
    Inventors: Jin Xu, Cheng Gao, Siqi Liu, Chaonan He, Jianfei Cao
  • Patent number: 11290159
    Abstract: An electronic device and a communication method. The electronic device comprises: a processing circuit, configured to: determine transmitting signals simultaneously to at least two user devices and proximity of directions of downlink transmission signals for the at least two user devices satisfying a predetermined condition; and acquire, an amount of antenna elements to be activated for downlink beamforming, which is determined based on the directions of downlink transmission signals for the at least two user devices.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 29, 2022
    Assignee: SONY CORPORATION
    Inventors: Wendong Liu, Zhaocheng Wang, Jianfei Cao
  • Publication number: 20220094402
    Abstract: The present disclosure relates to an electronic apparatus, a wireless communication method, and a computer-readable medium. According to one embodiment, an electronic apparatus used at a base station side comprises a processing circuit. The processing circuit is configured to carry out control so as to carry out multiple-input multiple-output transmission by means of two or more transmitting and receiving points, and to send indication information to a user equipment, wherein the indication information is related to a scheme of mapping between a spatial multiplexing layer and a code word for transmission by means of two or more transmitting and receiving points.
    Type: Application
    Filed: December 1, 2021
    Publication date: March 24, 2022
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Patent number: 11265071
    Abstract: The present disclosure relates to electronic device, method and storage medium for a wireless communication system. One embodiment of the present disclosure proposes beam management based on matching condition of channel path parameters under different beams. An electronic device includes a processing circuitry configured to: estimate, based on reference signals which are transmitted from the transmitter of the wireless communication system based on at least one second beam included in coverage of a first beam, parameters for channel paths from the transmitter to the receiver corresponding to the second beam, and wherein a particular second beam of the at least one second beam is selected based on the estimated parameters for channel paths, and the estimated parameter for channel path corresponding to the particular second beam matches parameter for channel path corresponding to the first beam.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: March 1, 2022
    Assignee: SONY CORPORATION
    Inventors: Peiyao Zhao, Zhaocheng Wang, Jianfei Cao
  • Patent number: 11265069
    Abstract: The present disclosure relates to an electronic device, a method, and a storage medium for a wireless communication system. Various embodiments are described with respect to beam pair link. In one embodiment, the electronic device used at the base station side in the wireless communication system may comprise a processing circuitry configured to monitor status of an uplink signal; determine it necessary to adjust a first uplink beam pair link (BPL) based on the status of the uplink signal, wherein the first uplink BPL comprises a first transmitting beam at a terminal device side and a first receiving beam at the BS side; and perform operations in order to adjust the first uplink BPL.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: March 1, 2022
    Assignee: SONY CORPORATION
    Inventor: Jianfei Cao
  • Publication number: 20220060854
    Abstract: The present disclosure relates to device, method for a wireless communication system and storage medium. In embodiments of the present disclosure, location information of at least one terminal device on the terminal side in the wireless communication system is acquired, wherein the at least one terminal device has specific position configuration information; and location information of a target terminal device among the at least one terminal device is determined based on the specific position configuration information of the at least one terminal device and the location information of the at least one terminal device.
    Type: Application
    Filed: February 3, 2020
    Publication date: February 24, 2022
    Applicant: Sony Group Corporation
    Inventors: Fuliang LIU, Zhaocheng WANG, Jianfei CAO
  • Patent number: 11251838
    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: June 16, 2020
    Date of Patent: February 15, 2022
    Assignee: SONY CORPORATION
    Inventors: Jin Xu, Chaonan He, Jianfei Cao
  • Publication number: 20220038970
    Abstract: An electronic device on side of user equipment, with an access link between the user equipment and a first node of an integrated access and backhaul (IAB) system, there being a backhaul link between the first node and a second node of the IAB system, wherein the second node is a parent node of the first node in network topology of the IAB system, characterized in that the electronic device includes: processing circuitry that measures a signal inference from a third node; reports an interference measurement to the first node; and in a case where the second node makes a determination to switch the access link used by the user equipment based at least in part on the interference measurement exceeding a predetermined threshold, establishes a direct access link between the user equipment and the second node and disconnect the access link between the user equipment and the first node.
    Type: Application
    Filed: January 31, 2020
    Publication date: February 3, 2022
    Applicant: Sony Group Corporation
    Inventors: Wendong LIU, Zhaocheng WANG, Jianfei CAO
  • Patent number: 11240080
    Abstract: Provided are an electronic device and method for wireless communication, the electronic device comprises a processing circuit, which is configured for: generating a first indication indicating the number of orthogonal frequency division multiplexing symbols occupied by a front load-on demodulation reference signal; generating a second indication indicating a configuration of an additional demodulation reference signal; and determining a mode of demodulating the reference signal on the basis of the first indication and the second indication, and generating a mode index corresponding to the mode to provide to user equipment.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: February 1, 2022
    Assignee: SONY CORPORATION
    Inventors: Jin Xu, Chaonan He, Hang Yang, Jianfei Cao
  • Patent number: 11239896
    Abstract: An electronic device and a communication method can provide multiple transmitting beams based on priori information. An electronic device for a first communication device side including: processing circuitry configured to: determine, based on priori information, a transmitting order for a plurality of transmitting beams of the first communication device in beam sweeping to be performed on a communication from the first communication device to a second communication device; and control to use the plurality of transmitting beams in the beam sweeping according to the determined transmitting order.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: February 1, 2022
    Assignee: SONY CORPORATION
    Inventors: Wendong Liu, Zhaocheng Wang, Jianfei Cao
  • Publication number: 20220014253
    Abstract: The present invention relates to an electronic device, a wireless communication method and a computer-readable medium. The electronic apparatus for wireless communication according to one embodiment comprises a processing circuit. The processing circuit is configured to perform control to carry out carrier aggregation communication with a base station by means of at least a first cell and a second cell. The processing circuit is further configured to perform control to send first information for beam failure recovery of the second cell to the base station by means of the first cell.
    Type: Application
    Filed: January 6, 2020
    Publication date: January 13, 2022
    Applicant: Sony Group Corporation
    Inventors: Jin XU, Wenjing REN, Ying ZHOU, Dongru LI, Qimei CUI, Jianfei CAO
  • Patent number: 11223398
    Abstract: The present disclosure relates to an electronic apparatus, a wireless communication method, and a computer-readable medium. According to one embodiment, an electronic apparatus used at a base station side comprises a processing circuit. The processing circuit is configured to carry out control so as to carry out multiple-input multiple-output transmission by means of two or more transmitting and receiving points, and to send indication information to a user equipment, wherein the indication information is related to a scheme of mapping between a spatial multiplexing layer and a code word for transmission by means of two or more transmitting and receiving points.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: January 11, 2022
    Assignee: SONY CORPORATION
    Inventor: Jianfei Cao
  • Publication number: 20220006495
    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: Application
    Filed: October 21, 2019
    Publication date: January 6, 2022
    Applicant: Sony Group Corporation
    Inventors: Wendong LIU, Zhaocheng WANG, Jianfei CAO
  • Publication number: 20220006580
    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: Application
    Filed: October 25, 2019
    Publication date: January 6, 2022
    Applicant: Sony Corporation
    Inventors: Tao CUI, Jianfei CAO
  • Publication number: 20210409252
    Abstract: An electronic device and communication method are disclosed. The electronic device comprises a processing circuit configured to perform a pre-processing operation on a first one-dimensional sequence of modulation symbols, the pre-processing operation including: performing a dimension-increasing conversion to convert the first one-dimensional sequence of modulation symbols into a first multi-dimensional modulation symbol block; transforming the first multi-dimensional modulation symbol block into a second multi-dimensional modulation symbol block with a first transformation, wherein the first transformation couples each symbol in the first multi-dimensional modulation symbol block with each other; and performing a dimension-decreasing conversion to convert the second multi-dimensional modulation symbol block into a second one-dimensional sequence of modulation symbols, wherein the dimension-decreasing conversion is an inverse process of the dimension-increasing conversion.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Applicant: Sony Group Corporation
    Inventors: Zhengyi ZHOU, Zhaocheng WANG, Ning GE, Jianfei CAO
  • Publication number: 20210400510
    Abstract: The present disclosure relates to an electronic device, a method, and a storage medium for a wireless communication system. Various embodiments regarding inter-cell interference measurement are described. In one embodiment, an electronic device for a terminal side in a wireless communication system may include a processing circuit that can be configured to measure a plurality of downlink beams of a serving cell, to determine one or more weak beams from the plurality of downlink beams for the terminal; measure interferences from one or more neighboring cells when the one or more weak beams are used to transmit a first signal; and transmit interference measurement results, measured when at least one weak beam is used, to a base station of the serving cell.
    Type: Application
    Filed: November 27, 2019
    Publication date: December 23, 2021
    Applicant: Sony Group Corporation
    Inventors: Ziyuan SHA, Zhaocheng WANG, Jianfei CAO
  • Publication number: 20210399865
    Abstract: Provided by the present disclosure are an electronic device and method used for wireless communication, and a computer-readable storage medium, the electronic device comprising: a processing circuit that is configured to: acquire from a base station information that is allocated by the base station for a user equipment (UE) and that is used for a beam management sounding reference signal (SRS) resource set; and, according to a pre-determined rule, determine an antenna panel of a UE corresponding to the SRS resource set indicated by the information, wherein the pre-determined rule limits the mapping between SRS resource sets used for beam management and antenna panels of UEs.
    Type: Application
    Filed: December 27, 2019
    Publication date: December 23, 2021
    Applicant: Sony Group Corporation
    Inventor: Jianfei CAO
  • Publication number: 20210400532
    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: Application
    Filed: December 9, 2019
    Publication date: December 23, 2021
    Applicant: Sony Group Corporation
    Inventors: Zhengyi ZHOU, Zhaocheng WANG, Ning GE, Jianfei CAO