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).

  • Patent number: 10813082
    Abstract: Certain aspects of the present disclosure propose techniques for transmission time interval (TTI) bundling for control channels (e.g., physical downlink control channel (PDCCH) and enhanced PDCCH) in long term evolution (LTE). According to certain aspects a method is provided for wireless communications. The method may be performed, for example, by a user equipment (UE). The method generally includes determining a first set of possible decoding candidates for the downlink control channel in a first subframe of the bundle of subframes and a second set of possible decoding candidates for the downlink control channel in a second subframe in the bundle of subframes, wherein the first set of possible decoding candidates and the second set of possible decoding candidates are different and processing the bundle of subframes based, at least in part, on the determination.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: October 20, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Hao Xu, Tingfang Ji, Peter Gaal
  • Patent number: 10813100
    Abstract: Certain aspects of the present disclosure relate to techniques for assigning resources for low cost user equipments (UEs). A method for wireless communications by a user equipment (UE) is provided. The method generally includes determining a first bandwidth, within a second bandwidth, for resources available for downlink data transmissions, wherein the first bandwidth is greater than the second bandwidth, determining a third bandwidth for resources available for uplink transmissions, wherein a bandwidth for resources available for uplink transmissions is different than the bandwidth for resources available for downlink transmissions, wherein the third bandwidth is greater than the first bandwidth, and communicating with a network using the determined downlink and uplink resources.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: October 20, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Hao Xu, Peter Gaal
  • Patent number: 10812231
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may use multiple-input multiple-output (MIMO) layer specific and codeword specific communication configurations to communicate with multiple base stations. For example, multiple base stations may be configured to provide coordinated multipoint (CoMP) transmissions to the UE. One or more of the base stations may transmit a set of communications configurations to the UE that includes at least one MIMO layer specific or codeword specific configuration. The UE may then receive a dynamic indication of which communication configuration to use during a specific time period. The UE may then communicate with one or more of the base stations using the indicated configuration during the specified time period.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 20, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Peter Gaal, Hao Xu
  • Patent number: 10805855
    Abstract: Cell selection techniques are provided for network access to cells that may employ one or more coverage enhancement techniques. A user equipment (UE), which may be a machine type communication (MTC) device, upon initial acquisition or upon wakeup may measure a reference signal received power (RSRP), reference signal received quality (RSRQ), or both, and determine a cell selection value based at least in part on the RSRP, RSRQ, or a combination thereof. The cell selection value may be determined based on an offset, which may be selected based on a measurement accuracy capability of the UE. UE sequential access attempts, neighbor cell list information that may include coverage enhancement of neighboring cells transmissions, and cell re-selection measurement frequency adjustments are also described.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: October 13, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Renqiu Wang, Madhavan Srinivasan Vajapeyam, Hao Xu, Wanshi Chen, Peter Gaal
  • Patent number: 10804617
    Abstract: Antenna structures at a given end of an electronic device may include antenna structures that are shared between multiple antennas. The device may include an antenna with an inverted-F antenna resonating element formed from portions of a peripheral conductive electronic device housing structure and may have an antenna ground that is separated from the antenna resonating element by a gap. A short circuit path may bridge the gap. The short circuit path may be a split return path coupled between a first point on the inverted-F antenna resonating element arm and second and third points on the antenna ground. The electronic device may include an additional antenna that includes the antenna ground and metal traces that form an antenna resonating element arm. The antenna resonating element arm of the additional antenna may be parasitically coupled to the inverted-F antenna resonating element and a portion of the split return path.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: October 13, 2020
    Assignee: Apple Inc.
    Inventors: Yijun Zhou, Yiren Wang, Jennifer M. Edwards, Hao Xu, Mattia Pascolini
  • Publication number: 20200317695
    Abstract: Provided is a compound of formula I or a pharmaceutically acceptable salt, enantiomer, diastereomer, tautomer, solvate, isotopic substituent, polymorph, prodrug, or metabolite thereof. Also provided is a method for preparing the compound of formula I. The compound of formula I has higher inhibitory activity against SHP2, and thus can be used to prevent or treat a disease related to SHP2.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: Qiangang Zheng, Ming Xu, Qinglong Zeng, Jing Li, Hao Zhuge
  • Publication number: 20200322936
    Abstract: The present disclosure describes various aspects of the implementation and design of Physical Downlink Control Channel (PDCCH) in 5G new radio (NR) applications. Aspects include methods, apparatuses, and computer-readable medium for one or more of multiple PDCCH search spaces, control resource block (CRB), irregular multiple slots or mini-slots grants, or fast control channel signaling for grant-free uplink (UL). For example, different scheduling entities can each have one or two search spaces defined (e.g., common and/or user equipment (UE)-centric search spaces). Also, CRBs can be used as units for PDCCH transmission instead of resource element groups/control channel elements (REGs/CCEs). In addition, irregularities in time domain, frequency domain, or both can be introduced in the granting of resource blocks (RBs) over multiple slots or mini-slots. Moreover, signaling can be used to indicate to a UE configured for grant-free UL the portion of the pool of resources available for grant-free UL.
    Type: Application
    Filed: June 23, 2020
    Publication date: October 8, 2020
    Inventors: Jing SUN, Wanshi CHEN, Tingfang JI, Tao LUO, Heechoon LEE, Hao XU, Peter GAAL
  • Publication number: 20200322961
    Abstract: A first apparatus may puncture, in at least two subslots, a first type of data or control information with a second type of data or control information. The first apparatus may bundle the least two subslots within a subframe, and the subframe may include a portion for carrying acknowledgment (ACK)/negative acknowledgment (NACK) information associated with the second type of data or control information. The first apparatus may communicate with a user equipment (UE) during the at least two subslots within the subframe. A second apparatus may receive ACK/NACK information associated with a second type of data or control information. The second apparatus may reduce a transmission power for a first type of data or control information during a subsequent subframe when the ACK/NACK information indicates a negative acknowledgement.
    Type: Application
    Filed: March 17, 2020
    Publication date: October 8, 2020
    Inventors: Chong LI, Junyi LI, Hao XU, Jing JIANG
  • Publication number: 20200315413
    Abstract: The present invention discloses an adjustable gas detection device for coal bed comprising a detection direction adjustment assembly, a suction head angle adjustment assembly and an analysis bin, wherein the suction head angle adjustment assembly includes a suction head first-level angle adjustment assembly and a suction head second-level angle adjustment assembly, and the suction head first-level angle adjustment assembly includes a suction head that sucks a gas through a suction pump and sends it into the analysis bin through a suction pipe for analysis; the detection direction adjustment assembly and the suction head angle adjustment assembly jointly adjust a position and a direction of the suction head. The gas detection device for coal bed of the present invention has many degrees of freedom, can quickly complete the angle adjustment, and realizes rapidly-oriented detection, as well as having advantages of high control efficiency, rapid response, flexibility and reliability.
    Type: Application
    Filed: November 10, 2019
    Publication date: October 8, 2020
    Inventors: Shu Tao, Dazhen Tang, Hao Xu, Song Li, Xinyang Men, Yaning Wu
  • Patent number: 10795444
    Abstract: A wearable device, a control method for the same and a control system are provided. The wearable device is coupled to a terminal device for generating a virtual scene and includes: a device body, a controller and a resistance adjusting mechanism. The controller is coupled to the resistance adjusting mechanism and configured to generate a control signal based on environmental information in the virtual scene generated by the terminal device. The resistance adjusting mechanism is configured to adjust a resistance parameter of the device body in a working state according to the control signal.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: October 6, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS
    Inventors: Zuoxin Yu, Jinzhao Zhou, Guochun Wang, Xinfeng Gong, Gang Ci, Baolei Guo, Zhenhua Luo, Wei Su, Na An, Xuzhong Liu, Dianzhong Liu, Xiao Ma, Bin Xu, Shaopeng Xu, Qingzhu Guan, Zheng Zhang, Zongwei Luo, Hao Wu
  • Patent number: 10798703
    Abstract: Various aspects of the present disclosure provides methods and techniques for flexible positioning of a uplink short burst in NR communications. In one example, the uplink short burst may have a slot position that at any position of the uplink centric slot. For instance, a downlink centric slot may contain control signals from a base station, such as a grant, that indicate the slot position of the uplink short burst. The grant may indicate, explicitly or implicitly, the position within an uplink centric slot that should be assigned to an uplink short burst. The UE may then transmit a response including an uplink short burst within the indicated slot position of an uplink centric slot. The various aspects may thus enable the dynamic assignment of uplink short bursts within uplink centric slots.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 6, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Renqiu Wang, Wei Zeng, Naga Bhushan, Hao Xu, Wanshi Chen
  • Patent number: 10798682
    Abstract: Certain aspects provide methods and apparatus for wireless communications. One example method generally includes receiving a shared channel within a subframe, determining the same precoding may be used across resource blocks belonging to the same precoding resource block group (PRG) of the shared channel, and processing the shared channel based on the determination.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 6, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Peter Gaal, Stefan Geirhofer, Hao Xu
  • Publication number: 20200313802
    Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support hybrid automatic repeat request (HARQ) schemes to improve the likelihood that information is received correctly over a wireless communications link. In HARQ, when a transmitting device determines that a receiving device failed to successfully decode a transmission of information, the transmitting device may retransmit the information to the receiving device. In some cases, HARQ techniques may be used for communications associated with different types of services. In such cases, to keep the latency of communications within a latency budget for a particular type of service, wireless devices may utilize the techniques described herein to dynamically terminate HARQ retransmissions. For instance, a transmitting device may avoid retransmitting information when an amount of time that has elapsed since an original transmission of the information has exceeded the latency budget.
    Type: Application
    Filed: November 20, 2017
    Publication date: October 1, 2020
    Inventors: Changlong Xu, Hao Xu, Jing Jiang
  • Publication number: 20200314890
    Abstract: A user equipment (UE) may perform a random access procedure to synchronize with a network for uplink and/or downlink communication. The UE may transmit a first type of random access transmission that includes transmitting a preamble or a second type of random access transmission that includes transmitting a preamble and a random access message. The second type may result in reduced delay but may have lesser SNR tolerance than the first type. In some aspects, the UE may determine whether to transmit the first type or the second type, and may transmit the first type or the second type in a random access channel portion of a slot. The random access channel portion of the slot may be occupied by portions of either the first type of random access transmission or the second type of random access transmission, thereby enabling flexible utilization of multiple types of random access procedure.
    Type: Application
    Filed: January 30, 2020
    Publication date: October 1, 2020
    Inventors: Renqiu WANG, Hung LY, Haitong SUN, Hao XU
  • Patent number: 10791546
    Abstract: Methods, systems, and devices are described for wireless communication at a device. A wireless device may be configured with a transmission time interval (TTI) bundling parameter. The device may then identify one or more resources for an uplink (UL) control channel based on the TTI bundling parameter (e.g., using either an implicit or an explicit indication from another wireless node such as a serving cell of a base station) and transmit the UL control channel using the identified resources. The device may also identify a downlink control information (DCI) format based on the TTI bundling parameter. For example, a resource allocation granularity level may be associated with the bundling parameter, and the length of a DCI field may depend on the resource allocation granularity level.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: September 29, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Peter Gaal, Hao Xu
  • Patent number: 10787546
    Abstract: A method for preparing an aliphatic polyester resin powder includes the steps of a) heat dissolving a crystalline aliphatic polyester resin in an organic solvent to obtain an aliphatic polyester resin solution; b) cooling the aliphatic polyester resin solution to precipitate a solid, thereby obtaining a solid-liquid mixture; c) optionally adding an adjuvant to the solid-liquid mixture and mixing; and d) conducting solid-liquid separation and drying to obtain an aliphatic polyester resin powder suitable for selective laser sintering. The crystalline aliphatic polyester resin powder obtained has good antioxidant property, good powder flowability, moderate size, smooth surface, suitable bulk density, and suitable dispersibility and particle size distribution. The aliphatic polyester resin powder is particularly suitable for selective laser sintering method.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: September 29, 2020
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Jianye Liu, Liqiu Chu, Yun Lyu, Shijun Zhang, Liying Zhang, Hao Zou, Mu Dong, Dali Gao, Baige Chou, Yiqing Bai, Jingbo Shao, Meng Xu, Yihui Xu, Ruoshi Chen
  • Patent number: 10791556
    Abstract: Techniques are described for wireless communication. A first method includes winning a contention for access to an unlicensed radio frequency spectrum band, and transmitting at least a portion of a channel usage beacon signal (CUBS) over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted in a number of frequency interlaces of the unlicensed radio frequency spectrum band. A second method includes winning a contention for access to an unlicensed radio frequency spectrum band; determining whether the contention is won within a threshold time before a next symbol period boundary; and transmitting at least a portion of a CUBS over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted during a preamble including a fractional period of a first symbol period. The at least portion of the CUBS may be based at least in part on the determining.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: September 29, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Srinivas Yerramalli, Durga Prasad Malladi, Naga Bhushan, Yongbin Wei, Tao Luo, Hao Xu, Wanshi Chen, Shimman Arvind Patel, Aleksandar Damnjanovic, Xiaoxia Zhang
  • Patent number: 10791523
    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: September 19, 2019
    Date of Patent: September 29, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Jay Kumar Sundararajan, Hao Xu, Wanshi Chen, Jing Jiang
  • Patent number: 10790944
    Abstract: Certain aspects of the present disclosure provide techniques for processing reference and data signals for uplink transmission. A method is provided for wireless communications. The method generally includes obtaining different sets of samples for at least one of: a data signal or a reference signal; spreading the different sets of samples for the at least one data signal or reference signal using separate discrete Fourier transform (DFT) processing blocks; interlacing the spreaded sets of samples by assigning the spreaded sets of samples from each of the separate DFT processing blocks to equally spaced tones; and transmitting the at least one data signal or reference signal on the assigned tones in an orthogonal frequency division multiplexed (OFDM) symbol.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: September 29, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Seyong Park, Wei Zeng, Yi Huang, Renqiu Wang, Hao Xu, Peter Gaal, Wanshi Chen, Tingfang Ji
  • Publication number: 20200304271
    Abstract: Aspects of the disclosure relate to implied and explicit mapping of uplink (UL) resources for acknowledgment communications from a user equipment (UE). In some examples disclosed herein, implied mapping may include indexing of information elements in a downlink (DL) communication. The explicit mapping may include information elements in the DL communication configured to explicitly provide a location of an UL resource. Other aspects, embodiments, and features are also claimed and described.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 24, 2020
    Inventors: Yi HUANG, Renqiu WANG, Hao XU, Seyong PARK