Patents by Inventor Xiang Cheng

Xiang Cheng 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: 20200089786
    Abstract: Techniques for automatically creating geographic region groups are provided. Attribute data about a plurality of regions is stored. Based on the attribute data, each region is classified as belonging to a tier of multiple tiers. A first set of region groups is generated, where each region group includes at least two regions assigned to different tiers. For each region group, group attribute data for that region group is generated. A comparison of first group attribute data of a first region group is performed with group attribute data of each other region group. Based on results of the comparison, first arrangement data that associates a second region group with the first region group is stored.
    Type: Application
    Filed: September 19, 2018
    Publication date: March 19, 2020
    Inventors: Xiang Cheng, Chen Wang, Michael J. Tambe, Megh Mehta, Xiaojing Dong, Chi-Yi Kuan
  • Publication number: 20190286263
    Abstract: A device (116) for processing signals from a projected capacitance touch panel (43) is described. The projected capacitance touch panel (43) includes a layer of piezoelectric material (9) disposed between a number of sensing electrodes (7, 27) and at least one counter electrode (8). The device (116) includes a capacitive touch controller (84) having a number of measurement ports (122). The device (116) also includes a number of charge amplifiers (123). The device (116) also includes a number of terminals (C1, . . . , C5, D1, . . . , D5) for connection to the sensing electrodes (7, 27) of the projected capacitance touch panel (43). Each terminal (C1, . . . , C5, D1, . . . , D5) is connected to one of the measurement ports (122). Each terminal (C1, . . . , C5, D1, . . . , D5) is also connected to an input of one of the charge amplifiers (123) via a corresponding switch (SW) of a number of switches (117a, 117b).
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Inventors: Mojtaba Bagheri, Babak Bastani, Jiahao Li, Xiang Cheng, Mike Astley
  • Patent number: 10111174
    Abstract: An intelligent switch system with reduced power consumption includes a wireless gateway, single live line intelligent switches, and one load per single live line intelligent switch. The wireless gateway generates wake-up signal, couples the wake-up signal to the alternating current power source network, and sends a control signal to all the intelligent switches. Each switch includes first wireless communication unit with sleep mode and wake-up mode, first wake-up unit, first controller, and switch unit. Every first wireless communication unit in wake-up mode receives the control signal. Every first wake-up unit receives and the wake-up signal to wake-up the first wireless communication unit if the control signal is tailored for that switch. The first controller analyzes the control signal and outputs a switch signal, the switch unit changes the on or off state of the load accordingly. When the switch unit is turned off, the current flowing is less than 50 uA.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: October 23, 2018
    Assignee: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD.
    Inventor: Ying-Xiang Cheng
  • Publication number: 20180132246
    Abstract: Provided are a method and system for transmitting dynamic control plane signaling of a virtual cell. The method includes: selecting, by a transmitting end, a base station from a base station set constituting the virtual cell as a channel through which a control plane signaling is transmitted; and transmitting, by the transmitting end, the control plane signaling to a receiving end via the selected base station.
    Type: Application
    Filed: December 23, 2015
    Publication date: May 10, 2018
    Inventors: Yazhu KE, Xiang CHENG, Jianwu DOU
  • Publication number: 20170332328
    Abstract: An intelligent switch system with reduced power consumption includes a wireless gateway, single live line intelligent switches, and one load per single live line intelligent switch. The wireless gateway generates wake-up signal, couples the wake-up signal to the alternating current power source network, and sends a control signal to all the intelligent switches. Each switch includes first wireless communication unit with sleep mode and wake-up mode, first wake-up unit, first controller, and switch unit. Every first wireless communication unit in wake-up mode receives the control signal. Every first wake-up unit receives and the wake-up signal to wake-up the first wireless communication unit if the control signal is tailored for that switch. The first controller analyzes the control signal and outputs a switch signal, the switch unit changes the on or off state of the load accordingly. When the switch unit is turned off, the current flowing is less than 50 uA.
    Type: Application
    Filed: August 9, 2016
    Publication date: November 16, 2017
    Inventor: YING-XIANG CHENG
  • Patent number: 9491025
    Abstract: A transmitting end of an Orthogonal Frequency-Division Multiplexing (OFDM) wireless communication system may generate a training sequence and attach the training sequence to a data sequence that contains information data. A receiving end of the OFDM wireless communication system may identify a starting position of the data sequence and further extract the data sequence.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: November 8, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Xiang Cheng, Rongqing Zhang
  • Patent number: 9462611
    Abstract: Disclosed are a method and apparatus for MTC device accessing wireless communication system. The method comprises: after the access network element obtaining the limited factor of the queue length, the normal access rank MTC device obtaining the corresponding limited factor of the queue length by monitoring the broadcasting channel; the MTC device calculating the queue length of its buffer, and judging whether the extending access barring EAB process can be performed according to the calculated queue length of its buffer and the obtained limited factor of the queue length; if not, continuing obtaining the corresponding limited factor of the queue length by monitoring the broadcasting channel; if yes, performing the EAB process, and determining whether random access process to the wireless communication system can be initiated according to the performance result of the EAB process.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: October 4, 2016
    Assignee: ZTE Corporation
    Inventors: Junqiang Liu, Xiang Cheng
  • Patent number: 9350512
    Abstract: The present document provides a method for a User Equipment (UE) which activates multi-stream transmission to transmit a High Speed Dedicated Physical Control Channel (HS-DPCCH) and a UE thereof, wherein the method is applied in a multi-stream transmission system, and includes: after receiving High-Speed Physical Downlink Shared Channel (HS-PDSCH) subframes transmitted from primary and secondary serving cells, the UE which activates the multi-stream transmission transmitting a HS-DPCCH carrying jointly encoded Acknowledge/Negative Acknowledgement (ACK/NACK) and Channel Quality Indicator (CQI) after a predetermined duration by taking a later received HS-PDSCH subframe of the pair of paired HS-PDSCH subframes as a reference, wherein the predetermined duration is determined according to a timing correlation by which the UE transmits the HS-DPCCH subframe and correspondingly receives the HS-PDSCH subframe, which is specified in the 3rd Generation Partnership Project (3GPP) specification 25.211.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: May 24, 2016
    Assignee: ZTE Corporation
    Inventors: Shugong Lin, Junqiang Liu, Xiang Cheng, Ruifeng Li
  • Patent number: 9344928
    Abstract: The disclosure provides a neighboring cell optimization method and a mobile communication system, which belong to the communication field. The method comprises: establishing an IUR connection between a first Radio Network Controller (RNC) and a second RNC; after the IUR connection is established successfully, the first RNC sending neighboring cell information to the second RNC; and the second RNC performing automatic neighboring cell optimization according to the neighboring cell information. With the disclosure, the neighboring cell information between two RNCs is updated in time, therefore the RNC is enabled to optimize the neighboring cell in time, and a timely cell handover performed by User Equipment (UE) is ensured, which provides a basis for ensuring call continuity of the UE.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: May 17, 2016
    Assignee: ZTE CORPORATION
    Inventors: Lirong Shi, Yin Gao, Xiang Cheng, Meifang He
  • Patent number: 9300439
    Abstract: The present invention provides a Hybrid Automatic Repeat Request (HARQ) failure indication method, an HARQ failure indication data frame and a Serving Node B thereof. In the above method, when the decoding of the received Enhanced Dedicated Transport Channel (EDCH) data frame is unsuccessful and the condition of sending HARQ failure indication is satisfied currently, Serving Node B sends an HARQ failure indication data frame to the Service Radio Network Controller (SRNC). Wherein, a carrier identifier which indicates the carrier on which the HARQ failure happens is carried in the HARQ failure indication data frame. According to the present invention, when the SRNC receives the HARQ failure indication data frame, SRNC can perform Outer Loop Power Control (OLPC).
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: March 29, 2016
    Assignee: ZTE CORPORATION
    Inventors: Meifang He, Xiang Cheng, Yu Zhang
  • Patent number: 9282475
    Abstract: A method for calculating total received power of an HS-PDSCH is disclosed in the patent document, comprising: when a terminal performs an HS-DSCH cell handover across an IUR interface, an SRNC requesting a DRNC to establish an HS-DSCH pre-configuration; the DRNC returning information of a measured power deviation of a target serving cell to the SRNC; the SRNC sending said information to the terminal; and after performing the handover to the target serving cell, the terminal using the measured power deviation of the target serving cell to estimate the total received power of the HS-PDSCH in the target serving cell. A system for calculating the total received power of the HS-PDSCH is also disclosed in the patent document, and the system comprises: a first module and second module of a serving radio network controller, a drift radio network controller and a terminal.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 8, 2016
    Assignee: ZTE Corporation
    Inventor: Xiang Cheng
  • Publication number: 20160056988
    Abstract: A transmitting end of an OFDM wireless communication system may generate a training sequence and attach the training sequence to a data sequence that contains information data. A receiving end of the OFDM wireless communication system may identify a starting position of the data sequence and further extract the data sequence.
    Type: Application
    Filed: July 25, 2013
    Publication date: February 25, 2016
    Inventors: Xiang CHENG, Rongqing ZHANG
  • Patent number: 9137756
    Abstract: The present invention discloses a method for sending/acquiring a SIR target value and a Serving Radio Network Control. The above sending method comprises: a Serving Radio Network Control (SRNC) sending an outer loop power control frame to a Node B, wherein the outer loop power control frame carries carrier identification information and a SIR Target value of a carrier corresponding to the carrier identification information. The above acquiring method comprises: a Node B receiving an outer loop power control frame sent by a Serving Radio Network Control (SRNC) and acquiring carrier identification information and a SIR Target value of a carrier corresponding to the carrier identification information from the outer loop power control frame; and the Node B updating a SIR Target value of the carrier corresponding to the carrier identification information to be the SIR Target value.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: September 15, 2015
    Assignee: ZTE Corporation
    Inventors: Yu Zhang, Xiang Cheng, Meifang He
  • Patent number: 9137039
    Abstract: The present invention provides an access point device, a communication unit and a method for access to a communication media in a communication network. The access point comprises a communication interface for exchanging data with a plurality of communication units in the communication network via the communication media; and a processor for receiving a media access request message in a contention mode from at least one communication unit of the plurality of communication units via the communication interface; and polling the at least one communication unit by assigning a media access duration to each of the at least one communication unit according to a corresponding duration information for media access in the received media access request message.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 15, 2015
    Assignee: Thomson Licensing
    Inventors: Zhi Gang Zhang, Lin Xiang Cheng, Xian Lei Wang
  • Patent number: 9118456
    Abstract: The present invention discloses a method and system for transmitting multi-carrier uplink data at a network side. The method comprises: whenever setting up or adding a multi-carrier enhanced dedicated channel cell, a radio network controller notifying a NodeB dominating the multi-carrier enhanced dedicated channel cell of carrier identifier information of a carrier corresponding to the multi-carrier enhanced dedicated channel cell; and whenever receiving data transmitted by a terminal using a multi-carrier high-speed uplink packet access technique in the multi-carrier enhanced dedicated channel cell via the carrier, the NodeB carrying the carrier identifier information of the carrier bearing the data in enhanced dedicated channel uplink data frames when constructing the enhanced dedicated channel uplink data frames, and transmitting the constructed enhanced dedicated channel uplink data frames to the radio network controller.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: August 25, 2015
    Assignee: ZTE Corporation
    Inventors: Xiang Cheng, Lin Liu, Yazhu Ke
  • Publication number: 20150230272
    Abstract: Disclosed are a method and apparatus for MTC device accessing wireless communication system. The method comprises: after the access network element obtaining the limited factor of the queue length, the normal access rank MTC device obtaining the corresponding limited factor of the queue length by monitoring the broadcasting channel; the MTC device calculating the queue length of its buffer, and judging whether the extending access barring EAB process can be performed according to the calculated queue length of its buffer and the obtained limited factor of the queue length; if not, continuing obtaining the corresponding limited factor of the queue length by monitoring the broadcasting channel; if yes, performing the EAB process, and determining whether random access process to the wireless communication system can be initiated according to the performance result of the EAB process.
    Type: Application
    Filed: August 7, 2013
    Publication date: August 13, 2015
    Applicant: ZTE Corporation
    Inventors: Junqiang Liu, Xiang Cheng
  • Patent number: 9065514
    Abstract: A method for transmitting power offset information of a secondary common pilot channel and a radio network control, including: after a drift radio network control receives request information sent by a serving radio network control and used for requesting the drift radio network control to feed back power offset information of respective secondary common pilot channels of managed target primary and secondary carrier cells, the drift radio network control setting following kinds of information elements with reference to MIMO pilot modes used respectively by target primary and secondary carrier cells: power offset information of a secondary common pilot channel of a single carrier cell, power offset information of a secondary common pilot channel of a primary carrier cell, and power offset information of a secondary common pilot channel of a secondary carrier cell, and feeding back set information elements to the serving radio network control through an IUR.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: June 23, 2015
    Assignee: ZTE Corporation
    Inventor: Xiang Cheng
  • Patent number: 9059831
    Abstract: In an SC-FDE system, in accordance with FDPMT, a transmitter may be configured to replace data carried by one or more signals, e.g., one or more sub-carriers, with the data included in a pilot frequency sequence. The starting position of the pilot frequency sequence may affect the BER value of the system. The transmitter may then be configured to choose a proper starting position for the pilot frequency sequence so that the BER of the overall system may be minimum.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: June 16, 2015
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Xiang Cheng, Miaowen Wen
  • Patent number: 9019860
    Abstract: The present invention discloses a method, a terminal and a communication system for starting a compressed mode, wherein the method comprises: a terminal receiving information of a target cell to be measured from a radio network controller; according to the information of the target cell to be measured, the terminal determining a transmission gap pattern sequence; according to the determined transmission gap pattern sequence, the terminal starting a compressed mode to perform a measurement to the target cell. In accordance with the present invention, the problem that a compressed mode can not be started in the case of load balancing mechanism or service bearer feature mechanism is solved, and the Quality of Service (QoS) of the terminal as well as the performance of the system are enhanced.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: April 28, 2015
    Assignee: ZTE Corporation
    Inventor: Xiang Cheng
  • Publication number: 20150078267
    Abstract: In an SC-FDE system, in accordance with FDPMT, a transmitter may be configured to replace data carried by one or more signals, e.g., one or more sub-carriers, with the data included in a pilot frequency sequence. The starting position of the pilot frequency sequence may affect the BER value of the system. The transmitter may then be configured to choose a proper starting position for the pilot frequency sequence so that the BER of the overall system may be minimum.
    Type: Application
    Filed: July 26, 2013
    Publication date: March 19, 2015
    Inventors: Xiang Cheng, Miaowen Wen