Patents by Inventor Yuan Zhu

Yuan Zhu 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).

  • Patent number: 10687269
    Abstract: An architecture for wireless network access is described. In one example, a network entity comprises processing circuitry to define a downlink control channel comprising a synchronization signal, a physical broadcast channel (PBCH), and at least one slot for contention resolution or device-to-device (D2D) discovery and link setup, and broadcast a synchronization signal comprising the control channel from a plurality of remote radio heads (RRH). Other examples are also disclosed and claimed.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: June 16, 2020
    Assignee: Apple Inc.
    Inventors: Huaning Niu, Hyejung Jung, Qian Li, Yuan Zhu
  • Publication number: 20200186263
    Abstract: Devices and methods of simultaneous data reception and measurement are generally described. A UE transmits to an eNB antenna capacity and receives a Beamformed Reference Signal (BRS) configuration in response. Beamformed signals from the eNB include a BRS subframe in accordance with the BRS configuration. The BRS subframe has a BRS whose structure depends on the UE antenna capacity. If the UE has a single antenna panels, neither an EPDCCH nor a PDSCH for the UE is in the BRS frame. If the UE has a single antenna panels and multiple ports or multiple antenna panels, the BRS may contain an EPDCCH or PDSCH for the UE as different ports or antenna panels may be assigned different functionality. The UE measures BRS Received Power (BRS-RP) of the BRS, transmits a BRS report based on the BRS-RP and selects an optimal beam based on BRS-RPs from BRSs of the beams.
    Type: Application
    Filed: February 11, 2020
    Publication date: June 11, 2020
    Inventors: Yushu Zhang, Yuan Zhu, Gang Xiong, Huaning Niu, Wenting Chang
  • Patent number: 10680695
    Abstract: Codebook designs are disclosed for full-dimensional multiple-input-multiple output (FD-MIMO) wireless cellular systems. The FD-MIMO cookbooks employ channel state information reference signals (CSI-RS). The codebook designs are used in beamforming CSI-RSs by the enhanced nodeB (eNB), where the CSI-RS is sent to the user equipment (UE), enabling the UE to perform channel estimation. The codebooks support beam selection, co-phasing between polarizations, and beam combining.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: June 9, 2020
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Yuan Zhu, Hong He
  • Publication number: 20200177250
    Abstract: Devices for and methods of synchronous beam refinement using a beam refinement reference signal (BRRS) are generally described. In one example embodiment, a UE receives BRRS information indicating switching of a Tx beam. The UE then uses this information to switch an associated Rx beam. In some embodiments, timing information is used to match the switching times. In some embodiments. DCI and CSI-RS operations are used to determine switching for the synchronous beam refinement.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 4, 2020
    Inventors: Wenting Chang, Yuan Zhu, Yushu Zhang, Gang Xiong, Huaning Niu
  • Patent number: 10666334
    Abstract: In one example, an apparatus of an e-NodeB (eNB) capable to establish a communication connection with a user equipment (UE) in a communication network, the eNB comprising processing circuitry to transmit a downlink (DL) beamforming training reference signal (BF-TRS) to a user equipment (UE) using transmit beamforming weights that are the same. Other examples are also disclosed and claimed.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: May 26, 2020
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Yushu Zhang, Yuan Zhu, Ralf Bendlin, Jong-Kae Fwu, Seunghee Han
  • Patent number: 10666343
    Abstract: Disclosed herein are apparatuses, systems, and methods for reference signal design for initial acquisition, by receiving a first primary synchronization signal (PSS) and a first secondary synchronization signal (SSS) from a first transmit (Tx) beam, in first contiguous orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe. A UE can receive at least a second PSS and a second SSS from a second Tx beam in contiguous OFDM symbols of the downlink subframe. A UE can then detect beamforming reference signals (BRSs) corresponding to the first Tx beam and the second Tx beam, based on identification of physical cell ID information and timing information processed from the first PSS, the second PSS, the first SSS, and the second SSS. The UE can select the first Tx beam or the second Tx beam that was received with the highest power, based on the BRSs. Other embodiments are described.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: May 26, 2020
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Huaning Niu, Yushu Zhang, Jong-Kae Fwu, Yuan Zhu, Ralf Matthias Bendlin
  • Patent number: 10645624
    Abstract: Various embodiments are generally directed to improved channel quality information feedback techniques. In one embodiment, for example, an evolved node B (eNB) may comprise a processor circuit, a communication component for execution by the processor circuit to receive a channel quality index for a physical downlink shared channel (PDSCH), the channel quality index associated with a defined reference resource, and a selection component for execution by the processor circuit to select a modulation and coding scheme (MCS) for transmission over the PDSCH of user equipment (UE) data in one or more resource blocks, the selection component to compensate for a difference between a cell-specific reference signal (CRS) overhead of the defined reference resource and a CRS overhead of the one or more resource blocks when selecting the MCS. Other embodiments are described and claimed.
    Type: Grant
    Filed: May 27, 2018
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, SeungHee Han, Yuan Zhu, Xiaogang Chen, Alexander Maltsev, Gregory Morozov
  • Patent number: 10631281
    Abstract: Technology described herein addresses symmetric uplink (UL)/downlink (DL) designs that can be applied to both uplink and downlink transmissions. A symmetric UL/DL design can define a Transmission Time Interval (TTI) format with control channels and data channels multiplexed using Frequency Division Multiplexing (FDM) or Time Division Multiplexing (TDM) to partition the control channels and the data channels within a Transmission Time Interval (TTI). A unified waveform can be applied to both UL and DL transmissions. Several Demodulation Reference Signal (DM-RS) designs are also described. A hybrid mode for UL transmissions is also described.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: April 21, 2020
    Inventors: Gang Xiong, Jong-Kae Fwu, Seunghee Han, Huaning Niu, Ralf Bendlin, Yuan Zhu
  • Patent number: 10631142
    Abstract: Example systems, methods, and devices for extending range of WiFi networks are discussed. More specifically, methods for extending range of a Wi-Fi network are disclosed. For example, a device may determine a first HE signal field of one or more HE signal fields of a frame associated with one or more first station devices (STAs). The device may segment the first HE signal field into a common part and one or more user specific parts. The device may encode a first user specific part of the one or more user specific parts individually into one or more first symbols. The device may encode a second user specific part of the one or more user specific parts individually into one or more second symbols.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: April 21, 2020
    Assignee: Intel IP Corporation
    Inventors: Qinghua Li, Huaning Niu, Yuan Zhu, Hwan-Joon Kwon, Jeongho Jeon, Xiaogang Chen, Yang Tang
  • Patent number: 10624156
    Abstract: Devices for and methods of providing low latency 5G FDD communications are generally described. A HARQ ACK/NACK for an xPDSCH is transmitted in the xPUCCH of the same or next subframe as the xPDSCH and xPDCCH. An xPUSCH is generated in the same subframe in response to an xPDCCH and HARQ ACK/NACK response is carried by another xPDCCH or xPHICH in the same or next subframe. The xPDCCH and the xPUCCH are at opposite ends of the same subframe, DL and UL subframe are delayed relative to each other, or at least one of the DL and UL subframe has an additional blank portion, portion with data associated with another UE or portion that contains a reference signal, broadcast signal or control information.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: April 14, 2020
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Glenn J. Bradford, Yushu Zhang, Jong-Kae Fwu, Yuan Zhu
  • Publication number: 20200112943
    Abstract: Technology for a next generation node B (gNB) operable for wideband coverage enhancement (WCE) communication in a MulteFire cell is disclosed. The gNB can determine, at the gNB, an aggregation level (AL) for an enhanced physical downlink control channel (ePDCCH). The gNB can determine, at the gNB, an ePDCCH transmission type indicator in a master information block (MIB). The gNB can allocate, based on the ePDCCH transmission type indicator in the MIB, resource blocks for the ePDCCH. The gNB can encode, at the gNB, control information in an ePDCCH for a system information block MulteFire (SIB-MF) transmission in a first subframe of a discovery reference signal (DRS).
    Type: Application
    Filed: June 28, 2018
    Publication date: April 9, 2020
    Inventors: Wenting Chang, Salvatore Talarico, Huaning Niu, Yuan Zhu, Qiaoyang Ye
  • Patent number: 10602501
    Abstract: Methods, devices and systems for jointly encoding allocation information of one or more wireless communication stations in a common portion of a physical layer header are disclosed. In some examples, a wireless device may: generate allocation information associated with one or more wireless communication stations; encode the allocation information into the common portion of the physical layer header; and transmit the physical layer header to the one or more wireless communication stations.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: March 24, 2020
    Assignee: Intel IP Corporation
    Inventors: Qinghua Li, Xiaogang Chen, Robert Stacey, Chittabrata Ghosh, Yuan Zhu, Rongzhen Yang
  • Publication number: 20200091988
    Abstract: A communication device including a first directional antenna and a second directional antenna which may each be set to any one of a plurality of main beam directions for radio communication, a transceiver configured to determine a reception quality for at least some of the plurality of main beam directions using the first directional antenna and for at least some of the plurality of main beam directions using the second directional antenna, select a main beam direction of the plurality of main beam directions based on the reception qualities determined by the first directional antenna and based on the reception qualities determined by the second directional antenna, and perform communication using the selected main beam direction.
    Type: Application
    Filed: July 1, 2016
    Publication date: March 19, 2020
    Inventors: Jinyu ZHANG, Yuan ZHU, Huaning NIU, Honglei MIAO, Yang TANG
  • Publication number: 20200092850
    Abstract: For example, an apparatus may include circuitry and logic configured to cause a wireless communication station (STA) to determine a plurality of uplink (UL) sounding groups of STAs; transmit at least one trigger frame to at least one UL sounding group of the plurality of UL sounding groups to trigger a measurement procedure with the UL sounding group, the trigger frame including one or more Identifiers (IDs) to identify one or more STAs of the UL sounding group; to receive one or more UL Null Data Packet (NDP) sounding frames from the one or more STAs of the UL sounding group in response to the trigger frame; to transmit a downlink (DL) NDP Announcement (NDP-A) frame to the plurality of UL sounding groups; and to transmit a DL NDP sounding frame to the plurality of UL sounding groups.
    Type: Application
    Filed: March 29, 2018
    Publication date: March 19, 2020
    Applicant: INTEL IP CORPORATION
    Inventors: Feng Jiang, Qinghua Li, Yuval Amizur, Jonathan Segev, Xiaogang Chen, Yuan Zhu
  • Publication number: 20200080224
    Abstract: This disclosure describes methods, apparatus, and systems related to non-contiguous channel bonding. A device may determine a wireless communication channel having one or more subchannels in accordance with one or more communication standards. The device may determine instructions to perform one or more clear channel assessments (CCAs) on at least one of the one or more subchannels. The device may cause to send the instructions to one or more first devices. The device may identify a frame received from at least one of the one or more first devices, wherein the frame is received on at least one available subchannel of the one or more subchannels.
    Type: Application
    Filed: October 18, 2019
    Publication date: March 12, 2020
    Inventors: Qinghua LI, Xiaogang CHEN, Po-Kai HUANG, Yuan ZHU, Yushu ZHANG
  • Patent number: 10588126
    Abstract: A method for selecting at least one parameter for downlink data transmission with a mobile user equipment. The method is executable by a wireless communication base station having multiple antennas configured to communicate wirelessly with the mobile user equipment. The method receives an uplink probing signal from the mobile user equipment. The method determines a plurality of angles of arrival for a corresponding plurality of paths between the mobile user equipment and the multiple antennas. The method transmits a plurality of downlink probing signals directionally toward corresponding angles of arrival in the plurality of angles of arrival. Each downlink probing signal is a virtual antenna port with respect to the mobile user equipment. The method receives channel state information. The method composes at least one of a rank indicator (RI), precoding matrix indicator (PMI), or modulating and coding scheme (MCS) for downlink data transmission to the mobile user equipment.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: March 10, 2020
    Assignee: Apple Inc.
    Inventors: Feng Xue, Qinghua Li, Yuan Zhu
  • Patent number: 10581537
    Abstract: Devices and methods of simultaneous data reception and measurement are generally described. A UE transmits to an eNB antenna capacity and receives a Beamformed Reference Signal (BRS) configuration in response. Beamformed signals from the eNB include a BRS subframe in accordance with the BRS configuration. The BRS subframe has a BRS whose structure depends on the UE antenna capacity. If the UE has a single antenna panels, neither an EPDCCH nor a PDSCH for the UE is in the BRS frame. If the UE has a single antenna panels and multiple ports or multiple antenna panels, the BRS may contain an EPDCCH or PDSCH for the UE as different ports or antenna panels may be assigned different functionality. The UE measures BRS Received Power (BRS-RP) of the BRS, transmits a BRS report based on the BRS-RP and selects an optimal beam based on BRS-RPs from BRSs of the beams.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: March 3, 2020
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Yuan Zhu, Gang Xiong, Huaning Niu, Wenting Chang
  • Patent number: 10581503
    Abstract: Machine-readable media, methods, apparatus and system for beam acquisition in a wireless system are disclosed. In some embodiments, a base station may comprise a transceiver to transmit, to a user equipment (UE), a plurality of beam reference signals (BRSs) via a plurality of transmission beams; and to receive, from the UE, a report to report receiving information associated with at least one of the BRSs on at least one of the transmission beams, wherein the report comprises an antenna identifier to identify a directional antenna panel or an antenna port associated with the directional antenna panel of the UE which receives the at least one of the BRSs on the at least one of the transmission beam.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: March 3, 2020
    Assignee: Apple Inc.
    Inventors: Wenting Chang, Yuan Zhu, Huaning Niu, Gang Xiong, Yushu Zhang
  • Patent number: 10574411
    Abstract: This disclosure describes methods, apparatus, and systems related to a high efficiency signal field encoding structure. A device may determine a communications channel having a bandwidth of a frequency band. The device may determine a first group of subchannels of the bandwidth and a second group of subchannels of the bandwidth. The device may determine a high efficiency signal field to be transmitted on the communications channel to a first device. The device may encode the high efficiency signal field using the first group of subchannels and the second group of subchannels. The device may cause to send the high efficiency signal field to the first device.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: February 25, 2020
    Assignee: Intel IP Corporation
    Inventors: Xiaogang Chen, Qinghua Li, Yuan Zhu, Rongzhen Yang, Hujun Yin
  • Patent number: 10560229
    Abstract: Devices and methods of providing symmetric UL and DL ACK/NACKs is generally described. UL ACK/NACKs of different UEs are multiplexed and received by a UE with a PUSCH. The receiving UE in response transmits the DL ACK/NACK. The ACK/NACK may be transmitted in a localized or distributed manner among subbands that may be adjacent or each may have blocks separated by blocks of a different subband. The ACK and NACK may use independent resources or the NACK may not be transmitted on the single ACK/NACK resource, the lack of an ACK serving as a NACK. The ACK/NACK may be transmitted using a beamforming weight shaped by the received PUSCH/PDSCH. The ACK/NACK symbol may be located in the first symbol, adjacent to the PUSCH/PDSCH, or at the end of a TTI. If adjacent, the UL grant or UL assignment may indicate whether the ACK/NACK resource is used by the PUSCH/PDSCH.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 11, 2020
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Huaning Niu, Hooman Shirani-Mehr, Yushu Zhang, Yuan Zhu