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: 20120224520
    Abstract: The invention provides a method and a device for confirming a downlink inner loop power control mode by a Node B in an idle mode and in a CELL_FACH state. The method includes that: when the Node B detects that there is User Equipment (UE) using an E-DCH in the idle mode or in the CELL_FACH state, confirming to use a mode 0 to receive Transmit Power Control (TPC) bit information sent on a Dedicated Physical Control Channel (DPCCH) by the UE, and performing downlink inner loop power control on a Fractional Dedicated Physical Channel (F-DPCH). The method and device provided in the invention enable the inner loop power control mode for the F-DPCH made by the Node B to be consistent with the TPC bit information mode fed back by the UE, and enable the F-DPCH to use proper transmit power to transmit.
    Type: Application
    Filed: August 17, 2010
    Publication date: September 6, 2012
    Applicant: ZTE CORPORATION
    Inventors: Yazhu Ke, Xiang Cheng, Lin Liu
  • Publication number: 20120216936
    Abstract: A biosensor for determining the concentration of an analyte in a biological sample. The biosensor comprises a support, a reference electrode or a counter electrode or both disposed on the support, a working electrode disposed on the support, the working electrode spaced apart from the other electrode or electrodes on the support, a covering layer defining a sample chamber over the electrodes, an aperture in the covering layer for receiving a sample, and at least one layer of mesh in the sample chamber between the covering layer and the electrodes. The at least one layer of mesh has coated thereon a silicone surfactant. Certain silicone surfactants are as effective as fluorinated surfactants with respect to performance of biosensors. These surfactants, when coated onto the mesh layer of the biosensor, are effective in facilitating the transport of aqueous test samples, such as blood, in the sample chamber.
    Type: Application
    Filed: January 5, 2012
    Publication date: August 30, 2012
    Inventors: Nigel John Forrow, Xiang Cheng Zhang, Catherine Ann McTigue
  • Publication number: 20120218940
    Abstract: A method for determining a slot format of an F-DPCH is disclosed in the present disclosure, including: a Node B using No.0 slot format of the F-DPCH as the slot format for transmitting information over the F-DPCH when detecting that a UE in CELL_FACH state or idle mode is using an E-DCH. An apparatus for determining a slot format of an F-DPCH is also disclosed. The present disclosure ensures that the slot format of the F-DPCH transmitted by the Node B is identical with that of the F-DPCH received by the UE, so that the UE can correctly receive the TPC bits carried on the F-DPCH, and thus the UE can use the TPC bits to implement inner loop power control. Therefore, the Node B can correctly receive the data information transmitted over an E-DPDCH.
    Type: Application
    Filed: November 9, 2009
    Publication date: August 30, 2012
    Applicant: ZTE CORPORATION
    Inventors: Yazhu Ke, Xiang Cheng
  • Publication number: 20120170544
    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: Application
    Filed: August 17, 2010
    Publication date: July 5, 2012
    Applicant: ZTE Corporation
    Inventors: Xiang Cheng, Lin Liu, Yazhu Ke
  • Publication number: 20120170527
    Abstract: The present invention discloses a method and an apparatus for obtaining the Hybrid Automatic Repeat Request (HARQ) information of a CCCH, wherein the method for obtaining the HARQ information of the CCCH comprises: a base station receiving a request message from a Radio Network Controller (RNC), wherein the request message is used to indicate the HARQ information used by the CCCH; the base station obtaining the HARQ information used by the CCCH according to the request message.
    Type: Application
    Filed: August 10, 2010
    Publication date: July 5, 2012
    Applicant: ZTE CORPORATION
    Inventors: Yazhu Ke, Xiang Cheng
  • Publication number: 20120147873
    Abstract: Disclosed are a method and a terminal for synchronizing a subordinate carrier cell, which method comprises the following steps of: after a terminal receives an activation uplink subordinate carrier order from a service node B, the terminal, with the current time as a reference, carrying out synchronization in a cell in an activation set of the enhanced dedicated channel of the subordinate carrier under a non-service node B at a first time point after having carried out delay according to an acquired subordinate carrier activation processing offset time period. The present technical solution reduces the time delay required by synchronization and inter-cell interference and enables the cell capacity and coverage to be unaffected.
    Type: Application
    Filed: August 4, 2010
    Publication date: June 14, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xiang Cheng, Yu Zhang, Meifang He
  • Publication number: 20120140751
    Abstract: The present invention discloses a method for transmitting a frame sequence number and a node B and a serving radio network controller, which method comprises: a node B receiving a protocol data unit from a carrier and de-multiplexing the protocol data unit into media access control data streams; the node B inserting a carrier symbol into a carrier indicator field of an enhanced-dedicated transport channel data frame and generating a frame sequence number for every the enhanced-dedicated transport channel data frame transmitted on the carrier; and the node B transmitting the media access control data streams to a serving radio network controller SRNC by using the enhanced-dedicated transport channel data frame. By virtue of the present invention it achieves that the SRNC is capable of obtaining the information regarding network layer data transmission in dual-carrier situation so as to detect the loss of data frames.
    Type: Application
    Filed: January 19, 2010
    Publication date: June 7, 2012
    Applicant: ZTE CORPORATION
    Inventors: Meifang He, Xiang Cheng, Yu Zhang
  • Publication number: 20120135762
    Abstract: The present invention provides a method for communication control between radio network controllers. The method comprises: after a serving node B belonging to a drift radio network controller controls a terminal to perform activation of an enhanced dedicated channel radio link, notifying a radio link activation information of the terminal to the drift radio network controller; and the drift radio network controller sending a radio link activation indication to a serving radio network controller according to the radio link activation information; and, after the serving node B belonging to the drift radio network controller controls the terminal to perform deactivation of the enhanced dedicated channel radio link, notifying a radio link deactivation information of the terminal to the drift radio network controller; and the drift radio network controller sending a radio link deactivation indication to the serving radio network controller according to the radio link deactivation information.
    Type: Application
    Filed: January 19, 2010
    Publication date: May 31, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xiang Cheng, Yu Zhang, Meifang He
  • Publication number: 20120134276
    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: Application
    Filed: January 6, 2010
    Publication date: May 31, 2012
    Applicant: ZTE Corporation
    Inventors: Meifang He, Xiang Cheng, Yu Zhang
  • Publication number: 20120127867
    Abstract: The present application discloses a method and apparatus for transmitting/receiving an HARQ failure indication. The method includes: a Node B receives an E-DCH payload from a primary carrier and fails to decode it; the Node B determines whether the condition of transmitting an HARQ failure indication is met, if so, the Node B sets the HARQ failure indication data frame on the primary carrier; and the Node B transmits the HARQ failure indication data frame to a service radio network controller on a transmission bearer corresponding to the primary carrier. The present application realizes a better control over the SIR target value through a carrier-based outer loop power control function.
    Type: Application
    Filed: January 5, 2010
    Publication date: May 24, 2012
    Applicant: ZTE CORPORATION
    Inventors: Meifang He, Xiang Cheng, Yu Zhang
  • Publication number: 20120120886
    Abstract: A method and UE for setting a Happy bit on an uplink enhanced dedicated control channel are provided. The method includes: a UE transmits an uplink Enhanced Dedicated Channel (E-DCH) on more than one carrier, when criterion 1 and criterion 2 are met, the UE sets the Happy bit which is to be transmitted to a network side as “UNHAPPY” to indicate that the UE doesn't satisfy with the current serving grant. The disclosure optimizes the processing process of power control and resource scheduling, reduces call-drop rate, so that the performances of the UE and the NodeB are optimized.
    Type: Application
    Filed: March 5, 2010
    Publication date: May 17, 2012
    Applicant: ZTE CORPORATION
    Inventors: Meifang He, Xiang Cheng, Yu Zhang
  • Patent number: 8101064
    Abstract: A biosensor for determining the concentration of an analyte in a biological sample. The biosensor comprises a support, a reference electrode or a counter electrode or both disposed on the support, a working electrode disposed on the support, the working electrode spaced apart from the other electrode or electrodes on the support, a covering layer defining a sample chamber over the electrodes, an aperture in the covering layer for receiving a sample, and at least one layer of mesh in the sample chamber between the covering layer and the electrodes. The at least one layer of mesh has coated thereon a silicone surfactant. Certain silicone surfactants are as effective as fluorinated surfactants with respect to performance of biosensors. These surfactants, when coated onto the mesh layer of the biosensor, are effective in facilitating the transport of aqueous test samples, such as blood, in the sample chamber.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: January 24, 2012
    Assignee: Abbott Laboratories
    Inventors: Nigel John Forrow, Xiang Cheng Zhang, Catherine Ann McTigue
  • Publication number: 20110211468
    Abstract: A method to implement an adaptive multicast data rate transmission selection includes determining the lowest signal strength station in a multicast group, using signal strength as an indicator to increase data rate, and determining if the increase in data rate is viable for multicast transmission by determining frame or packet loss using the increased data rate.
    Type: Application
    Filed: November 2, 2009
    Publication date: September 1, 2011
    Applicant: THOMSON LICENSING
    Inventors: Yan Feng Zhang, Xiao-Jun Ma, Zhi Gang Zhang, Lin Xiang Cheng, Xian Lei Wang
  • Patent number: 8005086
    Abstract: The invention is related with the problem of utilizing data compression in a network of distributed stations. Often header compression is used to improve the bandwidth usage in networks, in particular wireless networks. Header compression could be implemented in access points or routers, but both implementations have serious problems, e.g. due to limited CPU power, lack of scalability, or handover latency. To resolve the problems the invention proposes to use a dedicated data compression server in the network and a new protocol to transparently deploy data compression in the network.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: August 23, 2011
    Assignee: Thomson Licensing
    Inventors: Huan Qiang Zhang, Zhi Gang Zhang, Chuanming Wang, Lin Xiang Cheng
  • Patent number: 7998338
    Abstract: A biosensor for determining the concentration of an analyte in a biological sample. The biosensor comprises a support, a reference electrode or a counter electrode or both disposed on the support, a working electrode disposed on the support, the working electrode spaced apart from the other electrode or electrodes on the support, a covering layer defining a sample chamber over the electrodes, an aperture in the covering layer for receiving a sample, and at least one layer of mesh in the sample chamber between the covering layer and the electrodes. The at least one layer of mesh has coated thereon a silicone surfactant. Certain silicone surfactants are as effective as fluorinated surfactants with respect to performance of biosensors. These surfactants, when coated onto the mesh layer of the biosensor, are effective in facilitating the transport of aqueous test samples, such as blood, in the sample chamber.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: August 16, 2011
    Assignee: Abbott Laboratories
    Inventors: Nigel John Forrow, Xiang Cheng Zhang, Catherine Ann McTigue
  • Publication number: 20110186445
    Abstract: A biosensor for determining the concentration of an analyte in a biological sample. The biosensor comprises a support, a reference electrode or a counter electrode or both disposed on the support, a working electrode disposed on the support, the working electrode spaced apart from the other electrode or electrodes on the support, a covering layer defining a sample chamber over the electrodes, an aperture in the covering layer for receiving a sample, and at least one layer of mesh in the sample chamber between the covering layer and the electrodes. The at least one layer of mesh has coated thereon a silicone surfactant. Certain silicone surfactants are as effective as fluorinated surfactants with respect to performance of biosensors. These surfactants, when coated onto the mesh layer of the biosensor, are effective in facilitating the transport of aqueous test samples, such as blood, in the sample chamber.
    Type: Application
    Filed: June 14, 2010
    Publication date: August 4, 2011
    Inventors: Nigel John Forrow, Xiang Cheng Zhang, Catherine Ann McTigue
  • Publication number: 20110116364
    Abstract: A method for processing a collision between a random access procedure and a measurement gap, which involves a terminal and a base station, and the terminal is configured with a measurement gap; the method includes: when the random access procedure is a contention-based random access procedure, the terminal cancels the measurement gap if a random access response window or the operating time of a contention resolution timer has an overlap with the measurement gap. The concrete solution, that the priority of the random access procedure is higher than that of the measurement gap in the method provided by the present invention, improves the reliability of the random access procedure, reduces failure probability of the random access procedure, reduces the delay of the random access procedure, and effectively utilizes a measurement gap.
    Type: Application
    Filed: March 31, 2009
    Publication date: May 19, 2011
    Applicant: ZTE CORPORATION
    Inventors: Jian Zhang, Xiang Cheng
  • Publication number: 20110033053
    Abstract: A security key generating method, device and system are provided, wherein, the method is used for generating a security key in the process of the handover to an EUTRAN network from other network, the method includes: an MME generates a security key based on a root key KASME of the EUTRAN network, a specific value and/or other parameters and transmits a handover request message carrying the security key to a target evolved Node B, i.e. eNB; a UE generates the security key which used by the target eNB based on the root key KASME of the EUTRAN network, the specific value and/or other parameters. The application of the present invention adopts a specific value, KASME and/or other parameters to output a security key, which can solve the problem existed in the related technology, the problem is that the middle security key used by access layer while handover between different access system can not be generated, and then it can not realize the security protection of the access layer.
    Type: Application
    Filed: December 30, 2008
    Publication date: February 10, 2011
    Applicant: ZTE CORPORATION
    Inventors: Lu Gan, Zhongda Du, Xiang Cheng, Yazhu Ke
  • Patent number: 7839668
    Abstract: A multiple output AC/DC power adapter is provided. The adapter includes an adapter body with an output connector and more than one output plugs configured for connecting with the output connector. The adapter body includes a DC-DC converting circuit having an input terminal, an output terminal, a first adjustment terminal. The output connector includes a positive terminal, a second adjustment terminal and a negative terminal configured for connecting to the output terminal and the first adjustment terminal of the DC-DC converting circuit and ground correspondingly. The output plugs each includes an adjustment resistor having a resistance value different from the other output plugs. Therefore, when equipped with a plurality of output plugs each of the plurality of plugs having different resistor R0, the adapter can supply different output DC voltages for different electronic device.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: November 23, 2010
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Shih-Fang Wong, Tsung-Jen Chuang, Xiang-Cheng Wan
  • Publication number: 20100290391
    Abstract: The present invention provides an apparatus and method for concurrently accessing multiple wireless networks, comprising: a host for allocating a plurality of virtual MAC addresses based on the number of the wireless networks to be accessed, and a plurality of virtual MAC devices each having one of the virtual MAC addresses allocated by the host, for accessing the multiple wireless networks concurrently; wherein a physical address of the apparatus is set as a transmitter or receiver address of frames for accessing the multiple wireless networks concurrently.
    Type: Application
    Filed: December 15, 2008
    Publication date: November 18, 2010
    Applicant: Thomson Licensing
    Inventors: Lin Xiang Cheng, Zhi Gang Zhang, Xian Lei Wang, Li Zou