Patents by Inventor Weijuan GAO

Weijuan GAO 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: 11128992
    Abstract: A communications apparatus, a base station, and a communications method. The communications apparatus includes processing circuitry configured to: group users in a 3D beam-forming space of a current cell into multiple space user groups; determine group configuration information of the users in the 3D beam-forming space of the current cell; notify a neighbor cell of the group configuration information of the users in the 3D beam-forming space of the current cell to assist inter-cell interference coordination, wherein the current cell is configured with an antenna array having multiple physical antennas to achieve 3D beam-forming.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: September 21, 2021
    Assignee: SONY CORPORATION
    Inventors: Qimei Cui, Tong Zhang, Zhongbin Qin, Weijuan Gao, Hui Liang, Qinyan Jiang
  • Publication number: 20200021951
    Abstract: A communications apparatus, a base station, and a communications method. The communications apparatus includes processing circuitry configured to: group users in a 3D beam-forming space of a current cell into multiple space user groups; determine group configuration information of the users in the 3D beam-forming space of the current cell; notify a neighbor cell of the group configuration information of the users in the 3D beamforming space of the current cell to assist inter-cell interference coordination, wherein the current cell is configured with an antenna array having multiple physical antennas to achieve 3D beam-forming.
    Type: Application
    Filed: September 25, 2019
    Publication date: January 16, 2020
    Applicant: Sony Corporation
    Inventors: Qimei CUI, Tong ZHANG, Zhongbin QIN, Weijuan GAO, Hui LIANG, Qinyan JIANG
  • Patent number: 10484839
    Abstract: A communications apparatus, a base station, and a communications method. The communications apparatus includes processing circuitry configured to: group users in a 3D beam-forming space of a current cell into multiple space user groups; determine group configuration information of the users in the 3D beam-forming space of the current cell; notify a neighbor cell of the group configuration information of the users in the 3D beam-forming space of the current cell to assist inter-cell interference coordination, wherein the current cell is configured with an antenna array having multiple physical antennas to achieve 3D beam-forming.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: November 19, 2019
    Assignee: SONY CORPORATION
    Inventors: Qimei Cui, Tong Zhang, Zhongbin Qin, Weijuan Gao, Hui Liang, Qinyan Jiang
  • Patent number: 10244387
    Abstract: A device and method in a wireless communication system, the device including an access determination unit configured to determine an access requirement of a user equipment (UE); and a control unit configured to switch a target small cell of the device from a closed state to an open state based on the access requirement of the UE, and reallocate to the target small cell a new physical cell identifier different from the physical cell identifier used in the closed state. A physical cell identifier can be dynamically allocated in accordance with the open/closed state of the small cell, reducing the burden of cell planning and maintenance cost, and having greater flexibility.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: March 26, 2019
    Assignee: SONY CORPORATION
    Inventors: Qimei Cui, Qinyan Jiang, Weijuan Gao, Zhongbin Qin, Tong Zhang, Hui Liang
  • Patent number: 10064198
    Abstract: A wireless communication system, wireless communication system and method, the device on the base station side in the wireless communication system including: an edge user equipment (UE) identification unit configured to identify the edge UE on the enhanced physical downlink control channel (EPDCCH) according to the information about the UE received from the UE; and an interference coordination unit configured to apply an interference coordination plan to the EPDCCH of the edge UE. Applying the interference coordination plan to the EPDCCH of the edge UE improves service quality of the edge UE; and setting a proper degree of enhanced control channel element aggregation for the edge UE reduces the number of blind tests of the UE, thus increasing the system response speed.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: August 28, 2018
    Assignee: Sony Corporation
    Inventors: Qimei Cui, Tong Zhang, Weijuan Gao, Hui Wang
  • Patent number: 10021701
    Abstract: A wireless communication method and a wireless communication device. The wireless communication method is used in a coordinated multi-point communication system, and includes: recognizing an edge user equipment; determining the presence of interference to an enhanced physical downlink control channel (ePDCCH) of the edge user equipment; and in response to the determination of the presence of the interference, determining different interference coordination manners according to different scenarios, so as to control the transmission of the ePDCCH or a physical downlink shared channel (PDSCH) of a neighbor cell related to the interference.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: July 10, 2018
    Assignee: Sony Corporation
    Inventors: Qimei Cui, Xiaona Li, Weijuan Gao, Hui Wang, Jiang Han
  • Patent number: 9973983
    Abstract: The communication management apparatus includes a reception index determination device configured to determine, with respect to respective neighboring cells of a serving cell of each terminal apparatus within a predetermined cell, and a reference signal reception index for the terminal apparatus according to location information of the terminal apparatus. The reference signal reception index is used for indicating signal reception situation of the terminal apparatus with respect to the neighboring cells.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: May 15, 2018
    Assignee: SONY CORPORATION
    Inventors: Qimei Cui, Weijuan Gao, Qinyan Jiang, Tong Zhang
  • Publication number: 20170265068
    Abstract: A device and method in a wireless communication system, the device including an access determination unit configured to determine an access requirement of a user equipment (UE); and a control unit configured to switch a target small cell of the device from a closed state to an open state based on the access requirement of the UE, and reallocate to the target small cell a new physical cell identifier different from the physical cell identifier used in the closed state. A physical cell identifier can be dynamically allocated in accordance with the open/closed state of the small cell, reducing the burden of cell planning and maintenance cost, and having greater flexibility.
    Type: Application
    Filed: August 25, 2015
    Publication date: September 14, 2017
    Applicant: SONY CORPORATION
    Inventors: Qimei CUI, Qinyan JIANG, Weijuan GAO, Zhongbin QIN, Tong ZHANG, Hui LIANG
  • Publication number: 20170134913
    Abstract: A communications apparatus, a base station, and a communications method. The communications apparatus includes processing circuitry configured to: group users in a 3D beam-forming space of a current cell into multiple space user groups; determine group configuration information of the users in the 3D beam-forming space of the current cell; notify a neighbor cell of the group configuration information of the users in the 3D beam-forming space of the current cell to assist inter-cell interference coordination, wherein the current cell is configured with an antenna array having multiple physical antennas to achieve 3D beam-forming.
    Type: Application
    Filed: June 25, 2015
    Publication date: May 11, 2017
    Applicant: SONY CORPORATION
    Inventors: Qimei CUI, Tong ZHANG, Zhongbin QIN, Weijuan GAO, Hui LIANG, Qinyan JIANG
  • Publication number: 20160353339
    Abstract: The communication management apparatus includes a reception index determination device configured to determine, with respect to respective neighboring cells of a serving cell of each terminal apparatus within a predetermined cell, and a reference signal reception index for the terminal apparatus according to location information of the terminal apparatus. The reference signal reception index is used for indicating signal reception situation of the terminal apparatus with respect to the neighboring cells.
    Type: Application
    Filed: August 11, 2016
    Publication date: December 1, 2016
    Applicant: Sony Corporation
    Inventors: Qimei CUI, Weijuan GAO, Qinyan JIANG, Tong ZHANG
  • Patent number: 9445331
    Abstract: The communication management apparatus includes a reception index determination device configured to determine, with respect to respective neighboring cells of a serving cell of each terminal apparatus within a predetermined cell, and a reference signal reception index for the terminal apparatus according to location information of the terminal apparatus. The reference signal reception index is used for indicating signal reception situation of the terminal apparatus with respect to the neighboring cells.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: September 13, 2016
    Assignee: SONY CORPORATION
    Inventors: Qimei Cui, Weijuan Gao, Qinyan Jiang, Tong Zhang
  • Patent number: 9294256
    Abstract: The disclosure relates to methods and devices for notifying and determining common reference signal (CRS) patterns. The notification method comprises the steps of transmitting first downlink control information (DCI) to user equipment (UE) to inform the UE an aperiodic channel status information (CSI) feedback set and a CoMP transmission scheme to be applied to the UE, wherein the CoMP transmission includes a plurality of possible combinations of transmission points that transmit PDSCH to the UE; and transmitting second DCI to the UE for notifying transmission parameter to the UE based on the first DCI. In the disclosure, all CoMP transmission schemes and notifications of all CRS patterns therein can be supported, thus effectively perfecting notifications of the CRS patterns, saving signaling overheads, and significantly improving the flexibility.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: March 22, 2016
    Assignee: SONY CORPORATION
    Inventors: Qimei Cui, Hui Wang, Weijuan Gao
  • Publication number: 20150358881
    Abstract: The present disclosure provides a communication management apparatus and a communication management method. The communication management apparatus comprises a reception index determination device configured to determine, with respect to respective neighboring cells of a serving cell of each terminal apparatus within a predetermined cell, a reference signal reception index for the terminal apparatus according to location information of the terminal apparatus, the reference signal reception index being used for indicating signal reception situation of the terminal apparatus with respect to the neighboring cells. The communication management apparatus and the communication management method according to the present disclosure can at least improve cell switching performance.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 10, 2015
    Applicant: Sony Corporation
    Inventors: Qimei CUI, Weijuan Gao, Qinyan Jiang, Tong Zhang
  • Publication number: 20150351108
    Abstract: A wireless communication method and a wireless communication device. The wireless communication method is used in a coordinated multi-point communication system, and includes: recognizing an edge user equipment; determining the presence of interference to an enhanced physical downlink control channel (ePDCCH) of the edge user equipment; and in response to the determination of the presence of the interference, determining different interference coordination manners according to different scenarios, so as to control the transmission of the ePDCCH or a physical downlink shared channel (PDSCH) of a neighbour cell related to the interference.
    Type: Application
    Filed: December 26, 2013
    Publication date: December 3, 2015
    Applicant: SONY CORPORATION
    Inventors: Qimei CUI, Xiaona LI, Weijuan GAO, Hui WANG, Jiang HAN
  • Publication number: 20140211695
    Abstract: The disclosure relates to methods and devices for notifying and determining common reference signal (CRS) patterns. The notification method comprises the steps of transmitting first downlink control information (DCI) to user equipment (UE) to inform the UE an aperiodic channel status information (CSI) feedback set and a CoMP transmission scheme to be applied to the UE, wherein the CoMP transmission includes a plurality of possible combinations of transmission points that transmit PDSCH to the UE; and transmitting second DCI to the UE for notifying transmission parameter to the UE based on the first DCI. In the disclosure, all CoMP transmission schemes and notifications of all CRS patterns therein can be supported, thus effectively perfecting notifications of the CRS patterns, saving signaling overheads, and significantly improving the flexibility.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 31, 2014
    Applicant: Sony Corporation
    Inventors: Qimei CUI, Hui WANG, Weijuan GAO