Patents by Inventor Qimei Cui

Qimei Cui 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: 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
  • Publication number: 20160218838
    Abstract: A method, base station, and terminal for dynamic uplink configuration in a wireless communication system, the method including: determining reconfiguration information including a reconfiguration point of time, to employ first uplink and downlink subframe configuration in the first configuration period before the reconfiguration point of time, and to employ second uplink and downlink subframe configuration in a second configuration period after the reconfiguration point of time; and in the last transmission period before the reconfiguration point of time, employing an uplink scheduling timing sequence of a reference uplink and downlink subframe configuration according to an uplink data timing sequence, the reference uplink and downlink subframe configuration including the second uplink and downlink subframe configuration.
    Type: Application
    Filed: July 22, 2014
    Publication date: July 28, 2016
    Applicant: SONY CORPORATION
    Inventors: Qimei CUI, Mingliang TAO, Ting FU
  • Publication number: 20160198395
    Abstract: The present disclosure provides a management apparatus and a method for wireless communication as well as an apparatus and a method for wireless communication. The management apparatus includes: a determining module, configured to select a communication unit satisfying a predetermined condition from among a communication unit cluster managed by the management apparatus, and determine interference information or load information of at least part of resource blocks corresponding to the communication unit.
    Type: Application
    Filed: December 22, 2015
    Publication date: July 7, 2016
    Applicant: Sony Corporation
    Inventors: Yanzhao HOU, Qimei CUI, Hui LIANG, Qinyan JIANG, Tong ZHANG, Xin GUO, Jinhui CHEN, Chen SUN
  • Publication number: 20160135187
    Abstract: A carrier allocating apparatus including processing circuitry and a method and terminal, where the processing circuitry is configured to: determine a carrier parameter according to parameter information of the terminal, where the carrier parameter is configured to indicate a carrier needed by the terminal, and the carrier parameter includes a carrier type, the carrier type includes a Legacy Carrier Type (LCT) and a New Carrier Type (NCT), where the parameter information of the terminal includes a current carrier configuration of the terminal and a service type; perform a corresponding carrier allocation on the basis of the determined carrier parameter. A demand for a carrier is determined according to parameter information of the terminal, and then the needed carrier is allocated to the terminal. The apparatus can improve quality of service of the terminal in a system and improve user experience.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 12, 2016
    Applicant: SONY CORPORATION
    Inventors: Qimei CUI, Ningyu CHEN, Liang ZHENG, Yingni ZHANG, Jiahui LIU
  • Publication number: 20160119049
    Abstract: A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.
    Type: Application
    Filed: January 4, 2016
    Publication date: April 28, 2016
    Applicant: SONY CORPORATION
    Inventors: Qimei Cui, Shiyuan Li, Xiaofeng Tao, Chao Wang, Xianjun Yang
  • Publication number: 20160095007
    Abstract: A carrier coordination device and system, a communications device and method, and a measurement device and method. The carrier coordination device includes: a receiving unit, used to receive interference information for describing interference suffered by a user equipment; and a coordination unit, used to determine an interfering source base station of the user equipment according to the interference information, and coordinate carrier use of the user equipment and/or the interfering source base station at least based on the interference information and carrier state information of the interfering source base station, to reduce the interference suffered by the user equipment. The technology can be applied in a wireless communications field.
    Type: Application
    Filed: June 6, 2014
    Publication date: March 31, 2016
    Applicant: SONY CORPORATION
    Inventors: Hui TIAN, Qimei CUI, Zhilin LI, Baoang JIANG, Liqi GAO, Meng WANG
  • Patent number: 9301271
    Abstract: The present disclosure relates to the technical field of LTE-A, and discloses a method for air interface synchronization between base stations. A base station to be synchronized, which simultaneously monitors a plurality of neighboring base stations, can select one neighboring base station to perform time-service synchronization in accordance with different criteria in order, such as whether CoMP is necessary, the time-service hop count, time-service delay, and the CQI level (channel quality indicator) and the like. That is, the most suitable synchronization source is determined according to a certain priority order. Such solution both applies to a phase of initial establishment of air interface self-synchronization between base stations, and also to a phase of periodic synchronization maintenance. In addition, the technical effect of such solution is particularly prominent in the case of intensively arranged Small Cells.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: March 29, 2016
    Assignees: Beijing University of Posts and Telecommunications, Wuxi BUPT Sensing Technology and Business Research Institute Company Limited
    Inventors: Qimei Cui, Xiaofeng Tao, Liang Zeng, Yingni Zhang, Ningyu Chen
  • 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
  • Patent number: 9287939
    Abstract: The invention relates to the technical field of wireless communication, and provides a method for joint optimization of schedule and resource allocation based on a genetic algorithm, which is applied in a CoMP communication system. The method includes steps of: S1, encoding chromosome; S2, initializing setting; S3, computing fitness value; S4, determining whether the optimal solution is better than an elite: if yes, updating the elite and executing S5, and if no, turning to S5; S5, determining whether a predetermined generation of population has been generated or not, if no, executing S6, otherwise, turning to S8; S6, participating reproduction process to generate two offspring chromosome individuals; S7, determining whether a predetermined number of offspring chromosome individuals have been generated, if yes, turning to S3 to compute again; otherwise keeping on reproduction; S8, performing schedule and resource allocation according to a solution corresponding to the elite.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: March 15, 2016
    Assignee: Beijing University of Posts and Telecommunications
    Inventors: Xiaodong Xu, Xiaofeng Tao, Da Wang, Qimei Cui, Ping Zhang, Xin Chen, Dezhuang Wu
  • Patent number: 9288678
    Abstract: The present invention relates to the technical field of wireless communication, and discloses a method for frequency reuse based on cellular network. The method comprises the following steps: dividing the whole cellular network into a plurality of different cell clusters, wherein each cell cluster comprises three cells, every two of them being adjacent to each other; for each cell in a cell cluster, dividing the cell into a central area and an edge area according to the coverage of the cell; dividing the whole available frequency band of the network according to the user distribution and service distribution in the cell cluster; allocating divided frequency bands to the central area and the edge area in the cell cluster respectively according to preset rule; and applying the method for frequency reuse to other cell clusters, thus achieving the frequency reuse of the whole network.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: March 15, 2016
    Assignee: Beijing University of Posts and Telecommunications
    Inventors: Xiaofeng Tao, Ping Zhang, Xiaona Li, Qimei Cui, Xiaodong Xu, Yingyue Xu, Waheed ur Rehman
  • Publication number: 20160073421
    Abstract: A communication apparatus, communication system and communication method. The related communication apparatus is used for aggregating, at a base station side, communication resources at different frequencies and/or different transmission time, wherein a scheduling resource among the aggregated communication resources is used for transmitting control information about the scheduling resource and scheduled resources. The communication apparatus includes: a grouping unit configured to divide the communication resources into groups based on characteristics of the communication resources, wherein the same group of the communication resource is indicated by the same piece of control information; and a sending unit configured to send the control information to a corresponding communication terminal side by the scheduling resource. The communication apparatus, communication system and communication method improve communication performance.
    Type: Application
    Filed: April 25, 2014
    Publication date: March 10, 2016
    Applicant: SONY CORPORATION
    Inventors: Qimei CUI, Liang ZENG, Jiang HAN, Yingni ZHANG, Ningyu CHEN
  • Publication number: 20160013902
    Abstract: A method performing dynamic downlink configuration in a wireless communications system, a base station, and a terminal. The method includes: setting a reconfiguration point to enable a first uplink and downlink subframe configuration to be adopted in a first configuration period before the reconfiguration point and enable a second uplink and downlink subframe configuration to be adopted in a second configuration period after the reconfiguration point; and adopting a reference uplink/downlink subframe configuration adapted for an uplink subframe intersection of respective uplink/downlink subframe configurations for a time sequence of a downlink HARQ process during the predetermined change of the dynamical downlink configuration.
    Type: Application
    Filed: December 26, 2013
    Publication date: January 14, 2016
    Applicant: SONY CORPORATION
    Inventors: Qimei CUI, Ting FU, Mingliang TAO, Zhongbin Qin
  • Publication number: 20150373728
    Abstract: An apparatus and a method for a wireless communication network. The apparatus includes circuitry configured for acquiring the first information associated with an indicator indicating communication quality of user terminals served by an interfering base station; acquiring second information associated with an indicator indicating interfered degree of user terminals interfered by the interfering base station; configuring, based on the first information and the second information, transmission of the interfering base station for inter-base station coordination. The technical solution improves the overall performance of the wireless communication heterogeneous network.
    Type: Application
    Filed: October 31, 2013
    Publication date: December 24, 2015
    Applicant: Sony Corporation
    Inventors: Qimei CUI, Hui TIAN, Meng WANG, Peng TIAN, Liqi 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: 20150334773
    Abstract: The present disclosure provides a wireless communication network system based on centralized control and content delivery, comprising a centralized controller, a core network data forwarding unit, a core network data cache unit, and at least one distributed base station. The centralized control and content delivery control can be performed by the wireless communication network system provided by the present disclosure. In this manner, the user experience can be guaranteed, the centralized control can be realized, and the load of the base station equipment can be reduced to the largest extent. At the same time, the data interaction between base station and internet can be reduced, and thus the occupancy of bandwidth resources can be reduced accordingly.
    Type: Application
    Filed: March 20, 2015
    Publication date: November 19, 2015
    Applicant: Beijing University of Posts and Telecommunications
    Inventors: Qimei Cui, Xiaofeng Tao, Yulong Shi, Hui Wang, Yu Gu, Tianpeng Yuan
  • Publication number: 20150327076
    Abstract: The present application discloses an apparatus and a method for clustering small cells in TDD networks and a base station including the apparatus. The apparatus includes: an information acquiring unit, configured to acquire a transmitting feature among the small cells in the TDD networks and uplink traffic and/or downlink traffic of each small cell; and a clustering unit, configured to clustering the small cells based on the transmitting feature among the small cells and the uplink traffic and/or downlink traffic of each small cell acquired by the information acquiring unit, to obtain at least one small cell cluster.
    Type: Application
    Filed: April 22, 2015
    Publication date: November 12, 2015
    Applicant: Sony Corporation
    Inventors: Qimei CUI, Mingliang Tao, Hui Liang
  • Publication number: 20150327202
    Abstract: There is provided a method and device in a wireless communication system, the method comprising: a cell information interacting step of interacting information about a first cell and a second cell having interference with each other between the first cell and the second cell to determine a source cell and a target cell among the first cell and the second cell, wherein the target cell performs synchronization with the source cell being a synchronization source; an initial synchronizing step of performing initial frame-level synchronization by the target cell with the source cell being the synchronization source; a synchronization information interacting step of interacting information about a synchronization subframe position between the source cell and the target cell to determine a synchronization subframe position configurable for both the source cell and the target cell; and a symbol-level synchronizing step of performing symbol-level synchronization between the source cell and the target cell according to
    Type: Application
    Filed: April 22, 2015
    Publication date: November 12, 2015
    Applicant: Sony Corporation
    Inventors: Xiaodong XU, Qimei CUI, Yu SUN, Ningyu CHEN, Rui GAO, Jiahui LIU
  • Publication number: 20150312867
    Abstract: The present application discloses an apparatus and a method for controlling a change of operation state of a cell and a base station including the apparatus. The apparatus includes: a state change determining unit, configured to determine the change of operation state to be performed by the cell to be controlled, the change of operation state comprising change from active state to sleep state; and a sleep mode determining unit, configured to determine a sleep mode for the cell to be controlled so that the cell to be controlled has a different sleep mode from its adjacent cells, when the state change determining unit determines to perform the change of operation state of the cell to be controlled.
    Type: Application
    Filed: March 25, 2015
    Publication date: October 29, 2015
    Applicant: Sony Corporation
    Inventors: Qimei CUI, Jin XU, Ningyu CHEN, Jiahui LlU, Yu SUN, Rui GAO
  • Publication number: 20150312797
    Abstract: A device for controlling the fusion of a heterogeneous system, which receives a first data stream from a MAC layer of a WLAN through a LLC sub-layer and a second data stream from a MAC layer of a cellular network through a PDCP and a RLC sub-layer, and for fusing the first data stream and the second data stream into one data stream and transmitting the fused one data stream to a network layer. The device demultiplexes the data stream from the network layer into a third data stream corresponding to the MAC layer of the WLAN and a fourth data stream corresponding to the MAC layer of the cellular network, and transmits the third data stream to the MAC layer of the WLAN through the LLC and the fourth data stream to the MAC layer of the cellular network through the PDCP and the RLC sub-layer.
    Type: Application
    Filed: March 20, 2015
    Publication date: October 29, 2015
    Applicant: BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
    Inventors: Qimei Cui, Xiaofeng Tao, Yulong Shi, Yu Gu, Tianpeng Yuan