Patents by Inventor Fei Qin

Fei Qin 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: 20150348934
    Abstract: A manufacturing method for Package in Package (PiP) electronic device based on multi-row Quad Flat No-lead (QFN) package is provided wherein the lower surface of plate metallic base material are half-etched to form grooves. Insulation filling material is filled in the half-etched grooves. The upper surface of plate metallic base material is half-etched to form chip pad and multi-row of leads. Encapsulating IC chip for wire bonding, adhesive material, metal wire, chip pad and a plurality of leads to form a multi-row QFN package as an inner package. Flip-chip bonding IC chip with solder bumps on the first metal material layer of leads. Encapsulating IC chip with solder bumps, the multi-row QFN package, adhesive material, and leads to form an array of PiP electronic devices. Sawing and separating the PiP electronic device array, forming PiP electronic device unit.
    Type: Application
    Filed: December 4, 2012
    Publication date: December 3, 2015
    Applicant: BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: Fei Qin, Guofeng Xia, Tong An, Wei Wu, Chengyan Liu, Wenhui Zhu
  • Publication number: 20150328094
    Abstract: The present invention relates to a tooth whitening oral care composition, the use of abrasives in such an oral care composition, a method of polishing tooth enamel, and an oral care kit comprising the oral care composition.
    Type: Application
    Filed: December 24, 2012
    Publication date: November 19, 2015
    Applicant: Colgate-Palmolive Company
    Inventors: Yun Xu, Xiao Yi Huang, Yuan Hui Xie, Xiong Fei Qin
  • Publication number: 20150071365
    Abstract: The embodiments of the present invention relate to the technical field of wireless communications, and in particular, to a method, system and device for performing uplink transmission, which are used for solving the problems existing in the prior art that the spectrum efficiency and transmission efficiency are relatively low when the uplink transmission is performed in the case that the uplink transmission power is limited. The method of the embodiments of the present invention comprises: user equipment mapping complex symbol data obtained by modulation mapping to Q sub-frames, where Q is a positive integer; the user equipment modulating the complex symbol data mapped to each sub-frame, respectively, so as to generate sending signals corresponding to each sub-frame; and the user equipment sending the sending signals over the corresponding sub-frames.
    Type: Application
    Filed: April 26, 2013
    Publication date: March 12, 2015
    Applicant: China Academy of Telecommunications Technology
    Inventors: Qiubin Gao, Haijun Zhou, Fei Qin, Xueming Pan, Wei Bao
  • Publication number: 20150071059
    Abstract: A method and device for transmitting Internet Protocol (IP) data packet are disclosed by the present invention, the method comprising: an Access Point (AP) device obtains an IP data packet needing to be sent to an User Equipment (UE); said AP device use the type information of said IP data packet to determine the corresponding Data Radio Bearer (DBR) of said IP data packet; Said AP device sends said IP data packet to said UE through said DBR; in the embodiments of the present invention, when the AP device accesses the IP network locally or directly through the IP network, the Quality of Service (QoS) insurance of IP data packet in the air interface transmission is implemented, on the basis of the direct mapping between the type information and the data radio bearer.
    Type: Application
    Filed: March 4, 2013
    Publication date: March 12, 2015
    Inventors: Jing Fu, Li Chen, Fei Qin, Ming Ai, Yunjing Hou, Fei He
  • Patent number: 8951840
    Abstract: A manufacturing method for Flip Chip on Chip (FCoC) package based on multi-row Quad Flat No-lead (QFN) package is provided wherein the lower surface of plate metallic base material are half-etched to form grooves. Insulation filling material is filled in the half-etched grooves. The upper surface of plate metallic base material is half-etched to form chip pad and multi-row of leads. Encapsulating first IC chip, second IC chip, solder bumps, underfill material, and metal wire to form an array of FCoC package based on the type of multi-row QFN package. Sawing and separating the FCoC package array, and forming FCoC package unit.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: February 10, 2015
    Assignee: Beijing University of Technology
    Inventors: Fei Qin, Guofeng Xia, Tong An, Chengyan Liu, Wei Wu, Wenhui Zhu
  • Publication number: 20150003315
    Abstract: Disclosed are a data transmission method and device, used to solve the problem of achieving air interface group calling and multicasting when a base station is connected to a network side via an IP interface; the data transmission method of the present invention comprises: the base station determines a group air interface identifier corresponding to an IP broadcast address or an IP multicast target address; the base station assigns the air interface identifier to a user equipment in the group; and the base station schedules and transmits the air interface data via the air interface identifier.
    Type: Application
    Filed: December 26, 2012
    Publication date: January 1, 2015
    Inventors: Li Chen, Fei Qin, Ming Ai, Jing Fu, Yunjing Hou, Fei He
  • Publication number: 20140302640
    Abstract: A manufacturing method for Flip Chip on Chip (FCoC) package based on multi-row Quad Flat No-lead (QFN) package is provided wherein the lower surface of plate metallic base material are half-etched to form grooves. Insulation filling material is filled in the half-etched grooves. The upper surface of plate metallic base material is half-etched to form chip pad and multi-row of leads. Encapsulating first IC chip, second IC chip, solder bumps, underfill material, and metal wire to form an array of FCoC package based on the type of multi-row QFN package. Sawing and separating the FCoC package array, and forming FCoC package unit.
    Type: Application
    Filed: December 4, 2012
    Publication date: October 9, 2014
    Inventors: Fei Qin, Guofeng Xia, Tong An, Chengyan Liu, Wei Wu, Wenhui Zhu
  • Patent number: 8855068
    Abstract: A method and a system for coordinated transmission, and a mobile terminal and network side device are provided. The method for coordinated transmission includes: reporting by the terminal of a signal measurement result; determining the coordinated transmission state of the terminal according to the signal measurement result; and providing transmission service for the terminal according to the determined transmission state.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: October 7, 2014
    Assignee: China Academy of Telecommunications Technology
    Inventors: Fei Qin, Jinbo Zhao, Shaohui Sun, Li Liu, Qiubin Gao, Rakesh Tamrakar, Chun Luo
  • Patent number: 8842629
    Abstract: Disclosed are a scheduling method, device and system based on quality of service. The method includes: for downlink service data, an access point (AP) or a gateway (GW) determines the quality of service (QoS) level of a downlink service packet of a media access control (MAC) layer according to the QoS attribute information of the downlink service packet of the IP layer, and then the AP transmits and schedules radio resources according to the QoS level; for uplink service data, user equipment (UE) determines the QoS level of an uplink service packet of the MAC layer according to the QoS attribute information of the uplink service packet of the IP layer, and reports the QoS level and the other QoS parameters to the AP in the manner of a scheduling request, and the AP completes the transmitting and scheduling of radio resources according to the QoS level, so that the UE transmits the uplink service data to the AP.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: September 23, 2014
    Assignee: China Academy of Telecommunications Technology
    Inventors: Fei Qin, Ming Ai, Jinbo Zhao, Hui Xu
  • Patent number: 8825076
    Abstract: A method and an apparatus for terminal locating in long term evolution system are provided by the present invention, wherein, the method includes: calculating the propagation delay from the terminal to the base station to which the terminal belongs, according to the synchronization time advance of the terminal and the signal reception delay of the base station to which the terminal belongs (101); and determining the distance between the terminal and the base station by using said propagation delay, and determining the position of the terminal relative to that of the base station according to said distance and the direction of arrival of the signal from the terminal (102). By applying the method and the apparatus provided by the present invention, the terminal locating can be achieved with low cost, low implementation complexity, and high precision for location only by using a simple algorithm.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: September 2, 2014
    Assignee: China Academy of Telecommunications Technology
    Inventors: Fei Qin, Shaohui Sun, Yu Ding, Tamrakar Rakesh
  • Patent number: 8811433
    Abstract: A method for uplink synchronization in a multi-carrier system includes the following steps: a base station selects one or more first component carriers, which do not establish the uplink synchronization with the base station, from multiple component carriers supported by a terminal; then the base station obtains Timing Advance (TA) needed by the terminal to perform the uplink transmission on the first component carriers, and sends the TA information to the terminal; the terminal performs the uplink transmission on said first component carriers according to said TA. The application of the present invention enables the establishment of uplink synchronization between the base station and the user equipment in multi-carrier system.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: August 19, 2014
    Assignee: China Academy of Telecommunications Technology
    Inventors: Yali Zhao, Fangli Xu, Fei Qin, Guoqing Li
  • Patent number: 8804618
    Abstract: A method and an apparatus for determining the configuration mode of special subframe of a cell are provided, and the method includes: receiving notification messages sent from adjacent cells, and the notification messages containing the information indicating the configuration modes of special subframes of the adjacent cells; determining the configuration modes of special subframes of the adjacent cells in accordance with the notification messages; among the possible configuration modes of special subframes of the current cell, selecting preferably a configuration mode of special subframe, which meets the interference requirement of the current cell and has less interference with the adjacent cells, as the current configuration mode of special subframe. The embodiments of the present invention also provide a method and an apparatus for determining the usage mode of the time-domain resource of a cell.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: August 12, 2014
    Assignee: China Academy of Telecommunications Technology
    Inventors: Haijing Hu, Guojun Xiao, Yu Ding, Ying Wang, Jiayi Fang, Fei Qin
  • Publication number: 20140056245
    Abstract: Disclosed are a scheduling method, device and system based on quality of service.
    Type: Application
    Filed: February 13, 2012
    Publication date: February 27, 2014
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Fei Qin, Ming Ai, Jinbo Zhao, Hui Xu
  • Publication number: 20140003288
    Abstract: Embodiments of the present invention relate to the technical field of wireless communication, and relate particularly to a method, a system, and a device for confirming an uplink-downlink configuration, for use in confirming via interference detection whether or not a cell is capable of conducting independently the uplink-downlink configuration. The method of the embodiments of the present invention comprises: a network side device confirming the receipt of a first RSRP value of a reference signal from a second cell by a first cell, the second cell being an adjacent cell of the first cell (201); on the basis of the first RSRP value, the network side device confirming whether or not the first cell is capable of conducting autonomously the uplink-downlink configuration (202).
    Type: Application
    Filed: December 2, 2011
    Publication date: January 2, 2014
    Inventors: Xueming Pan, Shaohui Sun, Guojun Xiao, Fei Qin, Zukang Shen, Yu Ding
  • Publication number: 20130343217
    Abstract: Provided are a method, a system, and a device for confirming an uplink-downlink configuration, for use in confirming via interference detection whether or not a cell is capable of conducting independently the uplink-downlink configuration. The method comprises: a network side device confirming the value of an interference parameter of a target cell (201); on the basis of the value of the interference parameter of the target cell, the network side device confirming whether or not the target cell is capable of conducting autonomously the uplink-downlink configuration (202). Employment of the present invention allows for the normal operation of a dynamic uplink-downlink configuration, reduced interference between adjacent cells in a dynamic uplink-downlink configuration environment, and improved system efficiency.
    Type: Application
    Filed: November 25, 2011
    Publication date: December 26, 2013
    Inventors: Xueming Pan, Shaohui Sun, Guojun Xiao, Fei Qin, Zukang Shen, Yu Ding
  • Publication number: 20130337819
    Abstract: This application discloses a nomadic data access system and provides a new communication system and relevant devices to lower the complexity of the system. The system includes a core network and an NDA NodeB, wherein an NDA part in the core network is configured to establish a communication interface with the NDA NodeB, to establish a communication link for an NDA user equipment through the NDA NodeB and to transmit an NDA user data service to a 3GPP part in the core network; and the NDA NodeB is configured to establish the communication interface with the NDA part in the core network, to establish for the NDA user equipment the communication link with the NDA part in the core network and to transmit the NDA user data service, or to establish a communication link with a local area or wide area Internet and to transmit the NDA user data service to the local area or wide area Internet. This application further discloses devices in the system and relevant cell access and switching methods.
    Type: Application
    Filed: December 20, 2011
    Publication date: December 19, 2013
    Inventors: Fei Qin, Yingmin Wang, Jian Zhao, Jinbo Zhao
  • Publication number: 20130308563
    Abstract: An adaptive modulation and coding method includes selecting punctured Physical Resource Blocks (PRBs) to transmit downlink data for User Equipment (UE); determining Transport Block Size (TBS) and number of punctured PRB pairs for transmission to the UE based on the carried service; scheduling downlink data for the UE based on determined TBS, and transmitting the number of used punctured PRB pairs and a Modulation and Coding Scheme (MCS) sequence number to the UE; and the UE converting number of the punctured PRB pairs to number of normal PRB pairs, determining modulation scheme and TBS sequence number based on the MCS sequence number, and determining TBS of the downlink data based on number of normal PRB pairs and TBS sequence number.
    Type: Application
    Filed: April 30, 2013
    Publication date: November 21, 2013
    Applicant: China Academy Of Telecommunications Technology
    Inventors: Guojun Xiao, Deshan Miao, Shiqiang Suo, Fei Qin, Yu Ding, Xueming Pan
  • Patent number: 8441999
    Abstract: An adaptive modulation and coding method is provided by the present invention, comprising: selecting punctured Physical Resource Blocks (PRBs) to transmit the downlink data for the User Equipment (UE); determining the Transport Block Size (TBS) and the number of punctured PRB pairs for transmission to the UE based on the carried service; scheduling the downlink data for the UE based on the determined TBS, and transmitting the number of the used punctured PRB pairs and a Modulation and Coding Scheme (MCS) sequence number to the UE; and the UE converting the number of the punctured PRB pairs to the number of normal PRB pairs, determining the modulation scheme and the TBS sequence number based on the MCS sequence number, and determining the TBS of the downlink data based on the number of the normal PRB pairs and the TBS sequence number.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: May 14, 2013
    Assignee: China Academy of Telecommunications Technology
    Inventors: Guojun Xiao, Deshan Miao, Shiqiang Suo, Fei Qin, Yu Ding, Xueming Pan
  • Publication number: 20130034010
    Abstract: A method and device for reporting antenna calibration information and determining antenna calibration factor are provided by the present invention. When reporting the antenna calibration information, a user equipment (UE) estimates the downlink equivalent baseband channel from a plurality of antennas of the base station to the UE; according to the equivalent baseband channel, determines the amplitude response and delay value to be reported, and then reports the amplitude response and delay value to the base station. When determining the antenna calibration factor, according to the uplink signal sent by the UE on the base station-directed time-frequency resources, the base station determines the amplitude response and the delay value; according to the amplitude response and delay value reported by the UE and according to the amplitude response and delay value determined by the uplink signal, the base station calculates the antenna calibration factor.
    Type: Application
    Filed: April 19, 2011
    Publication date: February 7, 2013
    Inventors: Qiubin Gao, Shaohui Sun, Deshan Miao, Fei Qin
  • Publication number: 20120218987
    Abstract: A method for uplink synchronization in a multi-carrier system includes the following steps: a base station selects one or more first component carriers, which do not establish the uplink synchronization with the base station, from multiple component carriers supported by a terminal; then the base station obtains Timing Advance (TA) needed by the terminal to perform the uplink transmission on the first component carriers, and sends the TA information to the terminal; the terminal performs the uplink transmission on said first component carriers according to said TA. The application of the present invention enables the establishment of uplink synchronization between the base station and the user equipment in multi-carrier system.
    Type: Application
    Filed: September 30, 2010
    Publication date: August 30, 2012
    Inventors: Yali Zhao, Fangli Xu, Fei Qin, Guoqing Li