Patents by Inventor Junfeng Zhang

Junfeng Zhang 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: 20150291962
    Abstract: An isolated plant-functional microRNA or an extract containing said plant-functional microRNA, a preparation method therefor, and an application thereof are provided. The plant-functional microRNA originates from the endogenous microRNA of a plant, is present in a water-soluble and/or fat-soluble extract of said plant, and is capable of regulating non-plant target-genes.
    Type: Application
    Filed: August 15, 2013
    Publication date: October 15, 2015
    Inventors: Chenyu Zhang, Junfeng Zhang, Ke Zeng, Lei Dong
  • Publication number: 20150295694
    Abstract: A method and terminal for determining channel state information are disclosed. The method includes: a terminal receiving an aperiodic channel state information CSI request, determining a parameter X according to a capability of the terminal processing a CSI process and/or the number of CSI processes y configured currently, and updating up to X aperiodic CSI according to the parameter X; wherein the parameter X is: a total number of CSI processes or reports required to be updated by the terminal at the same moment in one or more aperiodic CSI requests.
    Type: Application
    Filed: October 24, 2013
    Publication date: October 15, 2015
    Inventors: Yu Ngok Li, Jun Xu, Senbao Guo, Junfeng Zhang
  • Patent number: 9136921
    Abstract: The disclosure provides a method for channel information feedback and a terminal, applied in an 8 antennae system, comprising: a terminal acquires the channel information which comprises PMI1 information and RI information; the terminal jointly encodes the PMI1 information and RI information into a 5 bit Report Type; the terminal feeds back the Report Type on a physical uplink control channel. The disclosure solves the poor transmission performance of the system caused by high overhead of channel information feedback in the related arts, thus improving the performance of the terminal to feed back information and improving the transmission performance of the system.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: September 15, 2015
    Assignee: ZTE CORPORATION
    Inventors: Yijian Chen, Yungok Li, Jun Xu, Junfeng Zhang, Shupeng Li
  • Patent number: 9130710
    Abstract: The disclosure discloses a method and system for processing control channel information. A receiving side is notified, by a network side via one or more types of the following signaling, of the information required to receive or perform blind detection for a control channel, wherein the signaling part comprises at least: a Radio Resource Control (RRC) signaling, a System Information Block (SIB)x (x=2, 3) signaling, and a Physical Downlink Control Channel (PDCCH) signaling located at the first n (n=1, 2, 3, 4) Orthogonal Frequency-Division Multiplexing (OFDM) symbols. In the control channel information processing technology of the disclosure, the receiving side can be notified, via signaling configuration, of at least the time domain or frequency domain location occupied by the control channel. This scheme allows for full utilization of space division technology, thus reducing the load on a physical downlink control channel, and reducing interference between control channels.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: September 8, 2015
    Assignee: ZTE Corporation
    Inventors: Senbao Guo, Yunfeng Sun, Yuhong Gong, Dongli Chen, Junfeng Zhang
  • Publication number: 20150249511
    Abstract: Disclosed in the present document are a method and terminal for calculating channel quality indication information. The method includes: a terminal performing a channel measurement according to a received cell state information-reference signal (CSI-RS) or cell reference signal (CRS), determining a channel state information (CSI) reference resource, and determining channel quality indication (CQI) calculation conditions, then the terminal calculating a CQI value corresponding to the CSI reference resource according to the determined conditions and the measurement result. The present document makes a reasonable setting of the CQI calculation conditions, and ensures performance and effectiveness of system link self-adaptation.
    Type: Application
    Filed: December 21, 2011
    Publication date: September 3, 2015
    Applicant: ZTE CORPORATION
    Inventors: Yijian Chen, Jun Xu, Yu Ngok Li, Bo Dai, Junfeng Zhang
  • Patent number: 9107087
    Abstract: The disclosure provides a method and device for determining Channel quality indication information, which is configured to perform channel measurement based on a reference signal, so as to obtain a CQI information. The method considers the influence of multiple factors on CQI calculation, including selection of a measurement reference signal as well as the influence of multiple complex conditions on CQI calculation, thereby solving the problem that an existing system is unable to obtain accurate Channel quality indication information when using a transmission mode 9, and enhancing the flexibility and performance of the system.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: August 11, 2015
    Assignee: ZTE CORPORATION
    Inventors: Ruyue Li, Yijian Chen, Jun Xu, Senbao Guo, Bo Dai, Yunfeng Sun, Junfeng Zhang
  • Publication number: 20150223254
    Abstract: Provided are a downlink data rate-matching method and device, the method including: a UE acquiring one of the following information: one or more sets of rate-matching resource indication information configured by a base station and used for instructing the UE to perform rate-matching, one or more sets of rate-matching resource indication information and combined rate-matching resource indication information, and rate-matching resource indication information of a serving cell of the UE acquired when the UE accesses a network; the UE determining a DCI Format corresponding to downlink grant indication information in a subframe of downlink control information transmitted by the base station; and the UE determining rate-matching resource information corresponding to the DCI Format and used for rate-matching according to the DCI Format and a preset corresponding relationship, and conducting downlink data rate-matching according to the rate-matching resource information. The solution improves rate-matching accuracy.
    Type: Application
    Filed: August 9, 2013
    Publication date: August 6, 2015
    Applicant: ZTE CORPORATION
    Inventors: Senbao Guo, Yu Ngok Li, Yunfeng Sun, Junfeng Zhang
  • Publication number: 20150223210
    Abstract: Disclosed is a configuration method for an enhanced downlink control channel, which configures K ePDCCH detection clusters for a terminal, including: independently configuring an antenna port index of a corresponding demodulation reference signal (DMRS) at the time of detection of each ePDCCH detection cluster or different transmission modes of ePDCCH detection clusters of the K ePDCCH detection clusters; and/or independently configuring a scrambling sequence index of the corresponding DMRS at the time of detection of each ePDCCH detection cluster or different transmission modes of ePDCCH detection clusters of the K ePDCCH detection clusters; and/or independently configuring the correlation between a corresponding DMRS scrambling sequence at the time of detection of each ePDCCH detection cluster or different transmission modes of ePDCCH detection clusters of the K ePDCCH detection clusters and a DMRS scrambling sequence of a physical downlink shared channel PDSCH, and the like.
    Type: Application
    Filed: July 29, 2013
    Publication date: August 6, 2015
    Inventors: Senbao Guo, Yijian Chen, Yunfeng Sun, Bo Dai, Junfeng Zhang
  • Publication number: 20150208400
    Abstract: Provided is a control information processing method and device. The method includes: receiving high-layer configuration signalling, wherein the high-layer configuration signalling is used for determining an indication mode of X bits in a control information format, the indication mode of X bits comprises at least one of the following: all of the X bits being used for indicating a first parameter set of at least one enabled transmission block in control information, and the X bits being used for indicating a first parameter set and a second parameter set of at least one enabled transmission block in the control information, where X is a positive integer greater than or equal to 3; and generating a control information format according to the high-layer configuration signalling.
    Type: Application
    Filed: August 2, 2013
    Publication date: July 23, 2015
    Applicant: ZTE Corporation
    Inventors: Yu Ngok Li, Jun Xu, Senbao Guo, Yunfeng Sun, Junfeng Zhang
  • Publication number: 20150208388
    Abstract: Disclosed are a method and device for transmitting parameters and a method and device for generating parameters. The method for transmitting parameters comprises: a transmission node determines a first set of parameters for the transmission node to generate at least one user equipment specific reference signal; and the transmission node sends the first set of parameters to one or more transmission nodes adjacent to the transmission node. Through the disclosure, interference between user equipment specific reference signals of transmission nodes is reduced.
    Type: Application
    Filed: December 16, 2011
    Publication date: July 23, 2015
    Applicant: ZTE CORPORATION
    Inventors: Yijian Chen, Jun Xu, Yu Ngok Li, Bo Dai, Junfeng Zhang
  • Publication number: 20150146817
    Abstract: Provided is a vector selection modulation-based multi-antenna transmission method, including: for a group of data to be transmitted, using part of bit information in the group of data to select a weight corresponding to the group of data from K preconfigured weights; and performing constellation mapping modulation on residual bit information in the group of data, and using the selected weight corresponding to the group of data to weight the group of data after the constellation mapping modulation, wherein, the K is a natural number. Based on the method of the present document, the spectrum efficiency of the system can be greatly improved under the condition without adding a transmission antenna.
    Type: Application
    Filed: May 6, 2013
    Publication date: May 28, 2015
    Inventors: Yunfeng Sun, Xun Yang, Junfeng Zhang, Yu Ngok Li
  • Publication number: 20150139101
    Abstract: A method for feeding back channel state information is provided, which includes: a base station notifying a terminal of transmission resources used for transmitting a plurality of Channel State Information (CSIs) or a plurality of colliding CSIs and/or of priorities between a plurality of CSIs or a plurality of colliding CSIs. In the present document, the base station indicates the terminal on how to handle a feedback of the colliding CSIs when collision between the CSIs occurs during processes of feeding back a plurality of CSIs via a high layer signaling or a preset rule, which enables the base station and the terminal to reach a uniform feedback mechanism, and guarantees a minimum possibility of discarding CSIs, thereby solving the problem of the impact on the CoMP performance due to discarding excessive CSIs.
    Type: Application
    Filed: May 10, 2013
    Publication date: May 21, 2015
    Inventors: Senbao Guo, Yunfeng Sun, Yu Ngok Li, Junfeng Zhang
  • Publication number: 20150131563
    Abstract: Disclosed is a method for configuring a channel state information (CSI) feedback. The method comprises: configuring multiple sets of CIS processes for a terminal, where each CSI process comprises at least information on a channel measurement part and information on an interference measurement, where the information on the channel measurement part comprises one or multiple sets of nonzero power CSI reference signal configuration or indication information, and where the information on the interference measurement part comprises at least one type of information among the following: one or multiple sets of interference measurement resource configuration information or indication information, one or multiple sets of nonzero power CSI reference signal configuration information for use in interference measurement compensation. Also disclosed are a method for measurement and feedback based on the method, and a corresponding device for implementing the method.
    Type: Application
    Filed: July 11, 2013
    Publication date: May 14, 2015
    Applicant: ZTE Corporation
    Inventors: Senbao Guo, Yunfeng Sun, Yu Ngok Li, Junfeng Zhang
  • Publication number: 20150098347
    Abstract: A method for instructing CSI feedback signaling configuration and base station are provided, the method comprising: a base station side notifies a terminal side, via the first higher layer signaling of a UE-Specific, a CSI-RS resource for measuring CSI, the CSI-RS resource comprising at least one of: the time frequency position of the CSI-RS resource in a subframe, the aerial port number configuration of the CSI-RS resource, a period and a subframe offset of the CSI-RS resource, the sequence identifier of the CSI-RS resource, and the power control information of the CSI-RS resource; the base station side instructs the terminal side to feed back the CSI corresponding to the CSI-RS resource.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 9, 2015
    Applicant: ZTE CORPORATION
    Inventors: Senbao Guo, Yu Ngok Li, Junfeng Zhang
  • Publication number: 20150098346
    Abstract: Methods for configuring Channel State Information (CSI) feedback signalings, feeding back CSI, configuring data demodulation, data demodulating, configuring antenna port information, obtaining antenna port information, base stations and terminals are disclosed.
    Type: Application
    Filed: August 22, 2013
    Publication date: April 9, 2015
    Applicant: ZTE CORPORATION
    Inventors: Senbao Guo, Yu Ngok Li, Yunfeng Sun, Junfeng Zhang
  • Patent number: 8989109
    Abstract: Disclosed in the present invention is a pre-coding method for hybrid multiplexing demodulation reference symbol (DMRS). The method includes: determining a multiplexing relationship between DMRS ports; making layers of data transport correspond to DMRS ports with the multiplexing relationship determined; and pre-coding pilot sequences corresponding to various DMRS ports according to the relationship between the layers of data transport and the DMRS ports. Also disclosed in the present invention is a method for mapping from a layer to a multiplexing demodulation reference symbol (DMRS) and an apparatus for achieving pre-coding based on a hybrid multiplexing demodulation reference symbol (DMRS). By way of the technical solution of the present invention, interference between the layers corresponding to different codeword streams can be avoided, and the accuracy of channel estimation can be improved.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: March 24, 2015
    Assignee: ZTE Corporation
    Inventors: Yunfeng Sun, Wenfeng Zhang, Jing Jiang, Junfeng Zhang
  • Publication number: 20150078266
    Abstract: A method for transmitting and receiving a control channel, a base station and a terminal relate to a long term evolution advanced system. The method for transmitting a control channel disclosed by the present document includes: a base station side configuring, for a terminal side, detection-limited subframe cluster information of a control channel, so as to notify the terminal side of the manner by which the base station side transmits the control channel. The present document also discloses a method for receiving a control channel, a base station and a terminal.
    Type: Application
    Filed: May 31, 2013
    Publication date: March 19, 2015
    Applicant: ZTE CORPORATION
    Inventors: Senbao Guo, Yijian Chen, Bo Dai, Yunfeng Sun, Junfeng Zhang
  • Patent number: 8958369
    Abstract: The disclosure provides a method for processing Channel State Information (CSI), and a User Equipment (UE). The method comprises: a UE measuring a channel on a CSI reference signal (CSI-RS) resource when a neighboring cell performs coordinated muting on the resource corresponding to the CSI-RS (S102); the UE obtaining a first Channel Quality Indicator (CQI), according to the measuring of the channel when a neighboring cell performs coordinated muting on the resource corresponding to the CSI-RS (S104). The disclosure can improve the channel estimation quality of the CSI-RS.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: February 17, 2015
    Assignee: ZTE Corporation
    Inventors: Yu Ngok Li, Huaming Wu, Yan Xue, Changqing Zhu, Junfeng Zhang
  • Publication number: 20150016368
    Abstract: The present document provides a method and system for controlling data transmission of a User Equipment (UE). The method includes: a base station transmitting control information for instructing a first UE to transmit data to a second UE. The present document solves the interference problem in device to device communication and communication in the original network, realizes the direct UE to UE communication and improves spectrum efficiency.
    Type: Application
    Filed: December 7, 2011
    Publication date: January 15, 2015
    Applicant: ZTE CORPORATION
    Inventors: Bo Dai, Yu Ngok Li, Yifei Yuan, Shuanshuan Wu, Feng Liang, Junfeng Zhang
  • Publication number: 20150010102
    Abstract: A Cooperative Multi-point transmitting and receiving apparatuses using base station modulation method in a wireless system are provided.
    Type: Application
    Filed: November 27, 2012
    Publication date: January 8, 2015
    Applicant: ZTE (USA) Inc.
    Inventors: Shupeng Li, David Huo, Guang Yang, Junfeng Zhang