Patents by Inventor Hao Xu

Hao Xu 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: 20190319367
    Abstract: An electronic device may be provided with a dielectric cover layer, a dielectric substrate, and a phased antenna array on the dielectric substrate for conveying millimeter wave signals through the dielectric cover layer. The array may include conductive traces mounted against the dielectric layer. The conductive traces may form patch elements or parasitic elements for the phased antenna array. The dielectric layer may have a dielectric constant and a thickness selected to form a quarter wave impedance transformer for the array at a wavelength of operation of the array. The substrate may include fences of conductive vias that laterally surround each of the antennas within the array. When configured in this way, signal attenuation, destructive interference, and surface wave generation associated with the presence of the dielectric layer over the phased antenna array may be minimized.
    Type: Application
    Filed: April 11, 2018
    Publication date: October 17, 2019
    Inventors: Jennifer M. Edwards, Harish Rajagopalan, Simone Paulotto, Bilgehan Avser, Hao Xu, Rodney A. Gomez Angulo, Siwen Yong, Matthew A. Mow, Mattia Pascolini
  • Publication number: 20190315923
    Abstract: A polyetherimide composition is disclosed including a polyetherimide sulfone having a glass transition temperature of 240 to 320° C., preferably 245 to 312° C., and a particulate, thermally conductive filler composition. A layer of the polyetherimide composition resists deformation as determined by IPC method TM-650 when subjected to a lead-free solder reflow process at a temperature of greater than or equal to 260° C., preferably 260 to 350° C. A layer including the polyetherimide composition further has a thermal conductivity of 2.5 to 15 W/mK, preferably 3 to 12 W/mK, as determined in accordance with ISO 22007-2:2008.
    Type: Application
    Filed: June 21, 2019
    Publication date: October 17, 2019
    Inventors: Chen Xu, Hao Zhou, Wei Zhao
  • Publication number: 20190319608
    Abstract: An automatic filtering method and device includes a step of analyzing an input signal so as to obtain its frequency spectrum; and a step of selecting, on the basis of the frequency spectrum, at least one filter from among a plurality of preset filters and filtering the input signal. The method and device automatically use a suitable filter on the basis of the frequency spectrum and repeat simulation of automatic fine adjustment to ensure a filtering effect against noise.
    Type: Application
    Filed: October 26, 2017
    Publication date: October 17, 2019
    Applicant: OMRON CORPORATION
    Inventors: Hao ZHANG, Haibin YU, Liangyong DUAN, Lei XU
  • Patent number: 10448421
    Abstract: Methods, systems, and devices for wireless communication are described for cross-carrier scheduling for wireless devices. In an example, a wireless device may monitor a control channel on a first carrier of a plurality of carriers to obtain a grant allocating resources to the wireless device within a shared data channel. In some cases, a time duration between the grant and the allocated resources within the shared data channel is based at least in part on which carrier of the plurality of carriers transports the shared data channel. The wireless device may transmit or receive over the shared data channel using the allocated resources and based at least in part on the time duration.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: October 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Kapil Bhattad, Alberto Rico Alvarino, Hao Xu
  • Patent number: 10448405
    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for mitigating resource conflicts between ultra low latency (ULL) and legacy transmissions. A base station may determine a region of a subframe having overlapping resource allocations for a first device of a first type (e.g., ULL device) and a second device of a second type (e.g., legacy device), wherein the first device of the first type has a capability to perform certain procedures with low latency relative to the second device of the second type that lacks the capability. The base station may modulate data from the region of the subframe for transmission to the first and the second devices, using a hierarchical modulation scheme.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Shimman Arvind Patel, Wanshi Chen, Durga Prasad Malladi, Peter Gaal, Hao Xu, Michael Mao Wang
  • Patent number: 10448385
    Abstract: Various aspects include a method and an apparatus for receiving a uplink (UL) short burst at an eNB, by determining, at the eNB, one or more tone assignments for one or more channels of the UL short burst, wherein the one or more channels of the UL short burst include a sounding reference signal (SRS), a demodulation reference signal (DMRS), a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH), transmitting the one or more tone assignments to the UE, and receiving the UL short burst from the UE, wherein the UL short burst is generated at the UE based at least on the one or more tone assignments transmitted from the eNB. Methods may include transmitting a uplink (UL) short burst from a user equipment (UE).
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: October 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Yi Huang, Wei Zeng, Hao Xu, Renqiu Wang
  • Patent number: 10448351
    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for employing a neighboring cell's assistance information for interference mitigation (e.g., by conveying the information to a user equipment). A base station (BS) may determine assistance information for a neighboring cell and convey it to a user equipment (UE). A UE may receive assistance information for a neighboring cell and use that information for performing interference cancellation or suppression on received signals. The UE may receive the assistance information from a serving cell or a non-serving cell. The assistance information may be valid for a particular transmission instance, for a known period of time, or until updated by a BS.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 15, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Taesang Yoo, Tao Luo, Wanshi Chen, Hao Xu, Yongbin Wei, Peter Gaal, Durga Prasad Malladi
  • Patent number: 10447459
    Abstract: The apparatus improves HD-FDD data transmission rates, e.g., for eMTC by using a self subframe scheduling PDSCH that overlaps a M-PDCCH transmission in time. The apparatus may communicate using ACK(s)/NACK(s) for multiple HARQs that are bundled and/or multiplexed within a subframe in order to increase a number of HARQs.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: October 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Seyed Ali Akbar Fakoorian, Alberto Rico Alvarino, Peter Gaal, Hao Xu, Juan Montojo, Wanshi Chen, Renqiu Wang, Xiao Feng Wang
  • Publication number: 20190313430
    Abstract: The present disclosure provides for adaptive resource management in new radio operations that favors the usage of resources for pilot signals and channel estimation in the transition slots of a slot burst, and the transmission of data in the subsequent slots of the slot burst. A device such as a user equipment (UE) and/or a base station may determine that the UE is operating in a transition state. The device may adapt a first numerology including a first number of symbols per slot used for transmission in the transition slots during the transition state, to a second scaled numerology including a second number of symbols per slot used for transmission in the subsequent slots after the transition state. A ratio of reference signal symbols to data symbol symbols may be greater in the transition slots than in the subsequent slots.
    Type: Application
    Filed: May 1, 2019
    Publication date: October 10, 2019
    Inventors: Alexandros MANOLAKOS, Jing JIANG, Seyong PARK, Hao XU, Wanshi CHEN, Wei ZENG, Peter GAAL, Tingfang JI
  • Publication number: 20190312704
    Abstract: An apparatus may use inactive uplink portions of a downlink CC to transmit SRS to an eNB. At times there may be a collision between the SRS transmission and uplink transmissions or downlink transmissions on another CC. The apparatus receives a carrier aggregation configuration for a first downlink CC and a second CC, determines to transmit an uplink transmission on the second CC or to receive a downlink transmission on the second CC, determines that the SRS would at least partially collide with the uplink transmission or the downlink transmission, and determines to adjust at least one of the uplink transmission, the SRS transmission, or reception of the downlink transmission based on the determination of the collision and an interruption time to transmit the SRS in the uplink portion of the first CC.
    Type: Application
    Filed: June 21, 2019
    Publication date: October 10, 2019
    Inventors: Alberto RICO ALVARINO, Wanshi CHEN, Peter GAAL, Jing SUN, Hao XU, Srinivas YERRAMALLI
  • Publication number: 20190311169
    Abstract: A method, an apparatus, and a terminal for recognizing a two-dimensional code are provided. The two-dimensional code includes an image region and an encoding region. The image region and the encoding region have no overlap. The method includes selecting, from pixels of the two-dimensional code, a pixel included in a code element in an encoding region. The method further includes determining a value of the code element in the encoding region according to the pixel included in the code element in the encoding region. The method further includes recognizing the two-dimensional code according to the value of the code element in the encoding region.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Dianping Xu, Yugeng Lin, Chen Ran, Jingjing Li, Hongyang Wang, Leteng Weng, Hao Chen
  • Publication number: 20190312347
    Abstract: An electronic device may be provided with a dielectric cover layer and a conductive layer on the dielectric cover layer. The conductive layer may define an opening. A dielectric spacer may be mounted to the cover layer within the opening. A substrate may be mounted to the spacer. Vertical conductive structures may extend from the conductive layer to the substrate and may laterally surround the spacer. A phased antenna array may be formed on the substrate and aligned with the opening. The cover layer may have a dielectric constant and thickness that are selected to form a quarter wave impedance transformer for the array at a wavelength of operation of the array. The spacer and the conductive structures may exhibit a cavity resonance at the wavelength. The array and the conductive structures may radiate radio-frequency signals at millimeter wave frequencies through the dielectric cover layer.
    Type: Application
    Filed: April 10, 2018
    Publication date: October 10, 2019
    Inventors: Jennifer M. Edwards, Harish Rajagopalan, Simone Paulotto, Bilgehan Avser, Hao Xu, Rodney A. Gomez Angulo, Siwen Yong, Matthew A. Mow, Mattia Pascolini
  • Patent number: 10440657
    Abstract: Aspects of the present disclosure provide techniques for a user equipment (UE) to set uplink power control for a long uplink burst and a short uplink burst. The UE receives uplink power control information including a first set of power control parameters for a long uplink burst and a second set of power control parameters for a short uplink burst with the sets of power control parameters being different from each other. The UE configures uplink power control for the long uplink burst based at least on the first set of power control parameters and the short uplink burst based at least on the second set of power control parameters. The UE sends at least one of a long uplink burst and a short uplink burst based on the corresponding uplink power control and sends at least one uplink power-headroom report for the long uplink burst and short uplink burst.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: October 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Jay Kumar Sundararajan, Hao Xu, Wanshi Chen, Jing Jiang
  • Patent number: 10440698
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided that may be configured to receive a downlink control message, to determine a beta offset value for transmitting UCI based at least in part on the downlink control message, and to transmit the UCI on an uplink shared channel interleaved with data based on the determined beta offset value. The apparatus may identify the beta offset from a set of values based on the downlink control message. An apparatus may identify resources allocated for PUSCH and may map UCI to the identified resources for PUSCH in a frequency interleaved manner over a bandwidth of the identified resources. The apparatus may map data to the identified resources in a time-first or frequency-first manner, and may transmit a signal comprising UCI and data on the identified resources of the PUSCH in accordance with the mapping.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Renqiu Wang, Wanshi Chen, Peter Gaal, Wei Zeng, Hao Xu, Yi Huang
  • Patent number: 10439782
    Abstract: Certain aspects of the present disclosure provide techniques for implicitly linking aperiodic channel state information (A-CSI) reports to CSI-reference signal (CSI-RS) resources. In an aspect, the UE may be instructed to report on specific CSI-RS resource(s) via explicit signaling in the UE grant. Other aspects disclose techniques for implicit CSI-RS resource selection by the UE that require fewer signaling resources. Instead of explicitly signaling CSI-RS resources to the UE, the UE may implicitly select CSI-RS resource for CSI feedback reporting based on information known to the UE, e.g. a subframe on which a reporting request is received. This may reduce the impact of the additional signaling in the UE grant.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Stefan Geirhofer, Tao Luo, Wanshi Chen, Peter Gaal, Hao Xu, Kapil Bhattad, Tingfang Ji
  • Patent number: 10440661
    Abstract: Extended DRX (e-DRX) operation using hyper frame extension signaling are described. The hyper frame extension signaling may extend the system frame number (SFN) range while maintaining backward compatibility for legacy devices not configured to use the extended SFN range. The hyper-SFN extension signaling may include an index to a hyper-SFN transmitted as part of system information different than that used for transmission of the SFN. UEs configured to use the hyper-SFN may effectively use a longer or extended SFN range that includes the legacy SFN range and the hyper-SFN range. The hyper-SFN extension may be used in an extended idle DRX (eI-DRX) mode which may coexist with existing I-DRX mode on the same paging resources. Additionally or alternatively, paging may be differentiated for eI-DRX mode UEs using separate paging occasions or a new paging radio network temporary identifier (RNTI).
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: October 8, 2019
    Assignee: QUACOMM Incorporated
    Inventors: Madhavan Srinivasan Vajapeyam, Miguel Griot, Hao Xu, Yongbin Wei, Masato Kitazoe, Durga Prasad Malladi
  • Patent number: 10440742
    Abstract: Wireless communications systems and methods related to performing hybrid grant-free and grant-based uplink (UL) data transmission. A wireless communication device dynamically selects between a grant-free mode and a grant-based mode based on at least a transmission configuration. The wireless communication device sends a first data packet in the grant-free mode, based on the selecting, using a first UL resource. The wireless communication device sends a second data packet in the grant-based mode, based on the selecting, using a second UL resource allocated to the wireless communication device. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Haitong Sun, Jay Kumar Sundararajan, Joseph Binamira Soriaga, Wanshi Chen, Peter Gaal, Hao Xu, Tingfang Ji, Wei Zeng
  • Patent number: 10440771
    Abstract: Methods for managing hybrid automatic repeat request (HARQ) feedback are disclosed, where HARQ feedback operations by a receiving device may be modified. A receiving device may receive a data transmission. The receiving device may evaluate a condition for determining how to provide HARQ feedback in response to the data transmission. The receiving device may modify a HARQ feedback operation based at least in part on the condition. Modification of HARQ feedback operations may include turning off HARQ feedback, excluding negative acknowledgment (NAK) reporting, or excluding acknowledgement (ACK) reporting.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: October 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Durga Prasad Malladi, Aleksandar Damnjanovic, Shimman Arvind Patel, Madhavan Srinivasan Vajapeyam, Michael Mao Wang, Hao Xu, Peter Gaal
  • Publication number: 20190305910
    Abstract: Aspects described herein relate to communicating feedback in wireless communications. A user equipment (UE) can receive, in a downlink portion of a slot, data communications from a base station, where the data communications comprise multiple code blocks received in one or more downlink symbols. The UE can generate one or more feedback bits to provide feedback for the multiple code blocks.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 3, 2019
    Inventors: Renqiu WANG, Yi HUANG, Krishna MUKKAVILLI, Peter ANG, Hao XU
  • Patent number: D863248
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: October 15, 2019
    Assignee: SHENZHEN VOXTECH CO., LTD.
    Inventors: Yinchao Liu, Jun Xu, Yi Tang, Lei Zhong, Hao Chen