Patents by Inventor Yunfeng Sun

Yunfeng Sun 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: 20160316435
    Abstract: Provided is a method and device for interacting signaling between nodes, a method and device for controlling uplink power, and an uplink transmission method and device, wherein the method includes that: a node respectively receives uplink power control information transmitted by other nodes using a basic resource element as a unit, and transmits the uplink power control information of the node to the other nodes by using the basic resource element as a unit, wherein the basic resource element includes at least one of the followings: a terminal or a terminal cluster, and a basic unit resource. The disclosure solves the problem in the related art that an uplink power reduction method cannot ensure uplink transmission reliability in a double-link scenario, thus ensuring the accuracy of uplink transmission in the double-link scenario.
    Type: Application
    Filed: May 16, 2014
    Publication date: October 27, 2016
    Inventors: Senbao GUO, Bo DAI, Yunfeng SUN, Junfeng ZHANG
  • Patent number: 9479237
    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: Grant
    Filed: May 6, 2013
    Date of Patent: October 25, 2016
    Assignee: ZTE Corporation
    Inventors: Yunfeng Sun, Xun Yang, Junfeng Zhang, Yu Ngok Li
  • Publication number: 20160306056
    Abstract: The present invention provides temperature correction system and method for X-ray detector.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Inventors: Yunfeng Sun, Guanying Nie, Ke Sun
  • Publication number: 20160270113
    Abstract: The present disclosure discloses a scheduling configuration method, which includes that: a centralized control unit configures coordination parameters of different nodes, and distributed scheduling units in each node schedule user resources of the local nodes. The present disclosure also discloses a scheduling configuration device, which includes: a configuration unit and scheduling units, wherein the configuration unit is arranged in a centralized control unit and configured to configure coordination parameters of different nodes; and the scheduling units are arranged in each node and configured to schedule user resources of the local nodes.
    Type: Application
    Filed: May 12, 2014
    Publication date: September 15, 2016
    Inventors: Yunfeng Sun, Yu Ngok Li, Jun Xu, Junfeng Zhang, Senbao Guo
  • Patent number: 9445420
    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: Grant
    Filed: August 9, 2013
    Date of Patent: September 13, 2016
    Assignee: ZTE CORPORATION
    Inventors: Senbao Guo, Yu Ngok Li, Yunfeng Sun, Junfeng Zhang
  • Publication number: 20160248559
    Abstract: An inter-node interference reduction method, node and system, wherein the method includes: a first node obtaining link state information fed back by a terminal within the coverage range of the first node; the first node calculating joint information reflecting the interference of a second node with the terminal based on the link state information, and sending the joint information to the second node; the second node scheduling a terminal within its own coverage range based on the joint information, wherein the joint information includes a codebook limit cluster and further includes one or more of a power level limit cluster, a priority indication information cluster and an interference level indication information cluster, and a correspondence exists between constituent elements of any piece(s) of information within the joint information and constituent elements of other information except the any piece(s) of information within the joint information
    Type: Application
    Filed: May 22, 2014
    Publication date: August 25, 2016
    Applicant: ZTE CORPORATION
    Inventors: Senba GUO, Jun XU, Yu Ngok LI, Yunfeng SUN
  • Publication number: 20160218840
    Abstract: Provided are a parameter transmission method and device for interference coordination and an interference coordination method and device. The parameter transmission method includes that: a first Transmission Point (TP) specifies a part of resources in all available resources of the first TP; the first TP defines a set of shared parameters on the specified part of resources, wherein the set of shared parameters are used for performing interference coordination between the first TP and at least one second TP adjacent to the first TP; and the first TP sends the set of shared parameters to the at least one second TP. According to the technical solutions, space-domain Inter-Cell Interference Coordination (ICIC) may be adopted on the basis of a conventional ICIC technology to further enhance a capability of interference coordination between TPs.
    Type: Application
    Filed: May 15, 2014
    Publication date: July 28, 2016
    Inventors: Yu Ngok LI, Jun XU, Yunfeng SUN, Senbao GUO, Junfeng ZHANG
  • Publication number: 20160212712
    Abstract: A processing method and device for reducing uplink power, UE and an Evolved eNodeB are provided. The uplink power reduction processing method is applied to a scenario where a plurality of Uplink Control Information (UCI) are transmitted on different uplink Component Carriers (CCs) of the same subframe, and the method includes: it is determined that the sum of power of the uplink CCs exceeds a transmission power threshold of UE; and uplink power of the UE is reduced according to a preset power reduction rule. By the present invention, a problem about uplink power control for transmission of the plurality of UCI on different carriers of the same subframe is solved, and the effects of providing different protection for different data requirements and effectively controlling the uplink power are further achieved.
    Type: Application
    Filed: June 17, 2014
    Publication date: July 21, 2016
    Inventors: Zewei CHEN, Bo DAI, Shuqiang XIA, Senbao GUO, Yunfeng SUN, Yu Ngok LI
  • Patent number: 9398581
    Abstract: Provided are a method and device for transmitting downlink control information. The method comprises: according to a predefined condition, the downlink control information carried on an ePDCCH onto at least one PRB pair, the predefined condition comprising at least one of: an ePDCCH aggregation level, a subframe cyclic prefix type, a format of downlink control information carried on the ePDCCH, an ePDCCH transmission mode, and mapping mode indication information; and the downlink control information carried on the at least of PRB pairs is transmitted. By mapping according to one or more predefined conditions, the present disclosure achieves mapping from the ePDCCH to the physical resource pair, and ensures the ePDCCH to obtain frequency domain diversity gain and scheduling gain.
    Type: Grant
    Filed: January 5, 2013
    Date of Patent: July 19, 2016
    Assignee: ZTE Corporation
    Inventors: Bo Dai, Kexue Lu, Yijian Chen, Senbao Guo, Yunfeng Sun
  • Publication number: 20160192227
    Abstract: Disclosed are an interference measurement method and system, and related equipment. The method includes: a network side configures Interference Measurement Resources for Demodulation (DM-IMRs) for a target data channel of a terminal, positions of the DM-IMRs on a frequency domain being determined according to a Physical Resource Block (PRB) which bears the target data channel; and the network side indicates configuration information of the DM-IMRs to the terminal to enable the terminal to perform transmission interference measurement on the target data channel. By the solutions of the present disclosure, accuracy in transmission interference measurement of the target data channel may be improved, so that improvement in demodulation/decoding performance of the target data channel at a receiving side is facilitated, and receiving performance of the target data channel may further be improved.
    Type: Application
    Filed: April 25, 2014
    Publication date: June 30, 2016
    Inventors: Yuhong Gong, Yunfeng Sun, Yu Ngok Li
  • Publication number: 20160192348
    Abstract: A method and apparatus for determining resources in a Physical Uplink Control Channel (PUCCH) are disclosed. The method includes: an apparatus determining a channel resource index of the PUCCH according to physical resources of an enhanced Physical Downlink Control Channel (ePDCCH), wherein, the PUCCH is used for carrying positive acknowledgement/negative acknowledgement (ACK/NACK) information about a Physical Downlink Shared Channel (PDSCH) indicated by the ePDCCH; and the physical resources of the ePDCCH include: any one or more of a physical resource block, an enhanced control channel element and an antenna port index. The embodiments of the present document can ensure the compatibility between an LTE-Advanced system and an LTE Release-8 system, and facilitate improving the system capacity and the scheduling flexibility of the LTE-Advanced system, thereby enabling an LTE-Advanced terminal to obtain a maximum frequency selectivity gain.
    Type: Application
    Filed: June 26, 2013
    Publication date: June 30, 2016
    Applicant: ZTE CORPORATION
    Inventors: Bo Dai, Yijian Chen, Senbao Guo, Yunfeng Sun, Zhisong Zuo
  • Patent number: 9379827
    Abstract: A method, system and apparatus for notifying and determining an antenna port location relationship are disclosed. A network side configures an indication signaling of a CSI-RS referenced by a DMRS, and/or a first enabling indication signaling used for indicating whether the indication signaling of the CSI-RS referenced by the DMRS is enabled; or the network side further configures an indication signaling of a CRS referenced by each set of CSI-RSs which are quasi-co-located, and/or a second enabling indication signaling used for indicating whether the indication signaling of the CRS referenced by each set of CSI-RSs which are quasi-co-located is enabled. In the above scheme, a terminal is enabled to determine a reference signal port referenced in time-frequency synchronization, thereby providing a time-frequency synchronization precision.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: June 28, 2016
    Assignee: ZTE Corporation
    Inventors: Yunfeng Sun, Senbao Guo, Yu Ngok Li, Yijian Chen
  • Patent number: 9350507
    Abstract: Disclosed in the present disclosure is a method for notification of scrambling code identification signalling group, and the present disclosure comprises: a network side transmits a scrambling code identification signalling group to a receiver; the receiver generates a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group, generates a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot, and performs channel estimation according to the pilot symbol sequence. The present disclosure also provides a system for implementing the notification of scrambling code identification signalling group.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 24, 2016
    Assignee: ZTE Corporation
    Inventors: Senbao Guo, Yunfeng Sun, Chenchen Zhang, Min Ren, Wei Gou
  • Publication number: 20160142197
    Abstract: Disclosed in the present invention are a transmission method and a reception method for data and control information, an eNB and a user equipment, wherein the transmission method includes: an eNB transmitting data and/or downlink control information to a user equipment within a service range in TDD special subframes in accordance with specific rules; wherein the specific rules are pre-configured in the eNB or pre-indicated by the eNB to the user equipment via a high-layer signaling; wherein, a serving cell in which the user equipment is located currently performs a coordinated multiple-point (CoMP) transmission with one or more other cells and has an independent TDD special subframe configuration compared with other cells. The eNB includes a memory module and a transmitting module.
    Type: Application
    Filed: April 25, 2014
    Publication date: May 19, 2016
    Applicant: ZTE Corporation
    Inventors: Senbao GUO, Bo DAI, Yunfeng SUN, Junfeng ZHANG
  • Patent number: 9331770
    Abstract: The present document provides a precoding method and system for open loop spatial multiplexing and a precoding indication method. The method includes: in transmission resources, a base station precodes N-layer data to be sent by using w a = [ u a a ยท u a ] , wherein ua is a vector or matrix related to a transmission resource location i; ? is a real number or a complex number related to the transmission resource location i; and N is an integer less than or equal to the number of base station transmission antennas.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: May 3, 2016
    Assignee: ZTE CORPORATION
    Inventors: Yijian Chen, Yu Ngok Li, Yunfeng Sun, Junfeng Zhang, Senbao Guo
  • Publication number: 20160119901
    Abstract: A method of using synchronization signal as demodulation reference signal is performed at an eNB in case that the demodulation reference signal is punctured by synchronization signal in a wireless communication network. The method comprises: determining whether there is a resource element collision between the demodulation reference signal and the synchronization signal; in accordance with a determination that there is a resource element collision between the two signals: using the synchronization signal as the demodulation reference signal in a PRB pair containing the synchronization signal; and transmitting the synchronization signal as the demodulation reference signal to a UE.
    Type: Application
    Filed: May 7, 2014
    Publication date: April 28, 2016
    Inventors: Wenfeng ZHANG, Senbao GUO, Yunfeng SUN, Shuqiang XIA
  • Publication number: 20160112177
    Abstract: Disclosed are an inter-cell coordinated interference measurement method and node, wherein, the method is applied to each node performing a coordinated interference measurement, and includes: receiving first measurement resource information transmitted by other network nodes via a backhaul link to a present node for coordinated interference measurement; determining second measurement resource information used by the present node for interference measurement according to the first measurement resource information transmitted by the coordinated network nodes, and instructing relevant coordinated network nodes to correspondingly configure a resource in accordance with the second measurement resource information of the present node; wherein the second measurement resource includes an interference measurement resource and/or a channel state information reference signal (CSI-RS); and performing interference measurement on the second measurement resource.
    Type: Application
    Filed: May 8, 2014
    Publication date: April 21, 2016
    Inventors: Yong ZHENG, Yu Ngok LI, Yunfeng SUN
  • Publication number: 20160087774
    Abstract: Disclosed in the present invention are a method, a system and a device for selecting Demodulation Reference Signal (DMRS) pattern information, wherein the method includes that a base station selects DMRS pattern information on the basis of a preset first rule, and informs a terminal of the selected DMRS pattern information; and the base station sends a DMRS to the terminal according to the selected DMRS pattern information.
    Type: Application
    Filed: April 14, 2014
    Publication date: March 24, 2016
    Applicant: ZTE CORPORATION
    Inventors: Senbao Guo, Yunfeng Sun, Junfeng Zhang, Zhisong Zuo
  • Publication number: 20160073239
    Abstract: Disclosed are a method and system for configuring a Physical Multicast Channel (PMCH), a method and system for acquiring a PMCH configuration and a method and system for sending and receiving subframes based on the PMCH configuration. The configuration method includes the following step: a base station configuring information for the PMCH or a Multimedia Broadcast and Multicast Service (MBMS) through a high-layer signalling and/or a predefinition and/or a Multicast Control Channel (MCCH). The configured information is at least one of a transmission band, a frequency-domain location, an initial location of an Orthogonal Frequency Division Multiplexing (OFDM) symbol of the PMCH, a transmission subframe cluster of the PMCH, a number of transmission layers or used port indexes and a number of ports of the PMCH and MBMS reference signal pattern information.
    Type: Application
    Filed: April 16, 2014
    Publication date: March 10, 2016
    Inventors: Senbao Guo, Yunfeng Sun, Bo Dai, Junfeng Zhang
  • Publication number: 20160070793
    Abstract: The present invention proposes a searching method and system and a network robot. The method comprises: S1: a network robot acquiring a search term from a user; S2: the network robot generating guidance information for the user according to the search term; S3: the network robot receiving response information from the user regarding the guidance information; and S4: the network robot feeding back the response information to a search engine, such that the search engine updates search results. The searching method of the embodiments of the present invention can not only help and guide a user to obtain more accurate search results and better satisfy the search needs of the user, but can also provide personalized services for the user and increase interest when the user uses a search engine to carry out a search, thus improving the user experience.
    Type: Application
    Filed: December 30, 2014
    Publication date: March 10, 2016
    Inventors: Kun JING, Ran XU, Haifeng WANG, Qu HU, Zhuoya LI, Rong RONG, Yunfeng SUN, Jizhou HUANG