Patents by Inventor Juan Feng

Juan Feng 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: 20200329832
    Abstract: Methods, systems, and devices for wireless communications are described that provide for managing transmissions using multiple component carriers (CCs) in which transmissions using one or more of the CCs may span less than a full transmission time of a slot or other transmission time interval. A UE may signal a capability to transmit such transmissions, and one or more capabilities related to carrier aggregation that may be used by a base station for scheduling of transmissions on different CCs. In the event that overlapping transmissions on two or more CCs exceed a maximum power threshold, various techniques for dropping at least a portion of one or more transmissions of one or more CCs are described.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 22, 2020
    Inventors: Xiao Feng Wang, Peter Gaal, Wanshi Chen, Seyedkianoush Hosseini, Tao Luo, Juan Montojo
  • Publication number: 20200258225
    Abstract: Systems and methods for determining a breast region in a medical image are provided. The methods may include obtaining a first image relating to the breast region, determining a first region including a first plurality of pixels in the breast region, determining a second region including a second plurality of pixels relating to an edge of the breast region, and determining the breast region by combining the first region and the second region. The second plurality of pixels may include at least a portion of the first plurality of pixels.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Na ZHANG, Juan FENG, Yange MA, Haihua ZHOU, Le YANG, Hao CHEN, Wanli TENG
  • Patent number: 10736113
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station may establish narrowband communications. The base station may configure positioning reference signal (PRS) resources based at least in part on wideband or narrowband transmissions, and a UE may receive the PRS transmissions over one or more narrowband regions. The UE, may determine PRS resources and receive portions of wideband PRS transmissions that are transmitted in one or more narrowband regions of the system bandwidth. The base station may configure PRS resources separately for narrowband devices, such as according to a bandwidth of the narrowband devices or with a single PRS tone per symbol compared to two PRS tones per symbol that may be used for wideband PRS transmissions. The base station may perform positioning measurements for a UE based at least in part on timing of uplink transmissions from the UE.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: August 4, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Renqiu Wang, Hao Xu, Wanshi Chen, Xiao feng Wang, Peter Gaal, Juan Montojo, Alberto Rico Alvarino, Jing Lei, Seyed Ali Akbar Fakoorian
  • Publication number: 20200245198
    Abstract: This disclosure generally relates to systems, devices, apparatuses, products, and methods for wireless communication. A communication system may include a user equipment (UE) that receives a configuration for contention-free random access (CFRA) and a configuration for contention-based random access (CBRA). The UE determines a first random access resource. The first random access resource maps to one or more beams from a target base station. The UE determines a beam quality associated with the first random access resource. The UE initiates a random access request using the CFRA when the first random access resource is a contention-free resource, and the beam quality of the first random access resource is above a threshold beam quality. The UE initiates the random access request using the CBRA when the first random access resource is the contention-free resource, and the beam quality of the first random access resource is below the threshold beam quality.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Inventors: Sumeeth NAGARAJA, Tao LUO, Makesh Pravin JOHN WILSON, Sony AKKARAKARAN, Juan MONTOJO, Shengbo CHEN, Wooseok NAM, Xiao Feng WANG, Kaushik CHAKRABORTY
  • Publication number: 20200226803
    Abstract: A method and system for image reconstruction are provided. A projection image of a projection object may be obtained. A processed projection image may be generated based on the projection image through one or more pre-process operations. A reconstructed image including an artifact may be reconstructed based on the processed projection image. The artifact may be a detector edge artifact, a projection object edge artifact, and a serrated artifact. The detector edge artifact, the projection object edge artifact, and the serrated artifact may be removed from the reconstructed image.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 16, 2020
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Le YANG, Hao CHEN, Kai CUI, Juan FENG, Yecheng HAN, Yange MA, Jie NIU, Ji QI, Wanli TENG, Na ZHANG, Haihua ZHOU
  • Patent number: 10716084
    Abstract: Certain aspects of the present disclosure generally relate to downlink (DL) based and uplink (UL) based positioning reference signal (PRS) techniques that may help facilitate positioning procedures in systems deploying narrowband devices, such as narrowband Internet of Things (NB-IoT) devices. An exemplary method that may be performed by a node includes monitoring for positioning reference signals (PRS) transmitted from one or more base stations within a narrowband region of a wider system bandwidth, wherein tones of the PRS are repeated across at least one of multiple symbols within a same subframe, or multiple consecutive subframes, and estimating timing from the one or more base stations based on the PRS.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: July 14, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Renqiu Wang, Hao Xu, Wanshi Chen, Xiao Feng Wang, Peter Gaal, Alberto Rico Alvarino, Juan Montojo, Jing Lei, Seyed Ali Akbar Fakoorian
  • Patent number: 10707923
    Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a base station may communicate with a user equipment (UE) using multiple antennas. Data streams may be mapped to the antennas using antenna ports. In some cases, a base station may transmit a transmission configuration indication (TCI) to a UE to indicate quasi co-location (QCL) relationships between antenna ports used for downlink communication with a UE. The UE may use these QCL relationships to identify appropriate techniques for decoding a downlink transmission from the base station. In some cases, it may be appropriate for a base station to update one or more TCI states configured for indicating, to a UE, QCL relationships between antenna ports used for downlink communication with the UE. As described herein, a base station may support techniques for dynamically updating such TCI states (e.g., via downlink control information (DCI) signaling).
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: July 7, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Makesh Pravin John Wilson, Tao Luo, Sony Akkarakaran, Sumeeth Nagaraja, Xiao Feng Wang, Juan Montojo, Shengbo Chen, Wooseok Nam, Yan Zhou
  • Patent number: 10708865
    Abstract: Methods, systems, and devices for wireless communications are described that provide for managing transmissions using multiple component carriers (CCs) in which transmissions using one or more of the CCs may span less than a full transmission time of a slot or other transmission time interval. A UE may signal a capability to transmit such transmissions, and one or more capabilities related to carrier aggregation that may be used by a base station for scheduling of transmissions on different CCs. In the event that overlapping transmissions on two or more CCs exceed a maximum power threshold, various techniques for dropping at least a portion of one or more transmissions of one or more CCs are described.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: July 7, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Xiao Feng Wang, Peter Gaal, Wanshi Chen, Seyedkianoush Hosseini, Tao Luo, Juan Montojo
  • Patent number: 10686506
    Abstract: Aspects of the present disclosure relate to deriving spatial receive parameters for quasi-colocation at a user equipment (UE). An exemplary method generally includes receiving a plurality of beams from a base station in a plurality of coarse directions, determining, based on the plurality of beams, a first spatial colocation parameter, transmitting an indication of a coarse direction associated with a beam having a highest receive strength of the plurality of beams, receiving a plurality of second beams from the base station based on the indication, the plurality of second beams having a narrower beam width than the plurality of beams and covering a beam width of the beam associated with the indicated coarse direction, determining, based on the plurality of second beams, a second spatial colocation parameter, transmitting an indication of the second beam having a highest receive strength, and refining at least one of the first or second spatial colocation parameters.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: June 16, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Makesh Pravin John Wilson, Tao Luo, June Namgoong, Sony Akkarakaran, Xiao Feng Wang, Sumeeth Nagaraja, Juan Montojo, Shengbo Chen, Kaushik Chakraborty, Wooseok Nam
  • Patent number: 10680700
    Abstract: Aspects of the present disclosure relate to techniques that may enhance radio link failure (RLF) procedures. In some cases, a UE may perform radio link monitoring (RLM) based on reference signals (RS) transmitted using a first set of beams, perform beam failure recovery (BFR) monitoring based on transmissions using a second set of beams, and adjust one or more radio link failure (RLF) parameters based on both the RLM monitoring and the BFR monitoring.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 9, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Kaushik Chakraborty, Tao Luo, Wooseok Nam, Sumeeth Nagaraja, Sony Akkarakaran, Makesh Pravin John Wilson, Xiao Feng Wang, Shengbo Chen, Juan Montojo
  • Patent number: 10681715
    Abstract: Methods, systems, and devices for wireless communications are described that provide for transmissions of multiple instances of control information, such as remaining minimum system information (RMSI), that may be used for system access by a user equipment (UE). The multiple instances of the control information may be combined at the UE to enhance the likelihood of successful decoding of the control information. A base station may transmit an indication that combining of multiple instances of control information is supported by the base station, and may transmit the multiple instances of control information via configured downlink transmission resources. A UE may receive the indication that combining of multiple control information instances is supported, may identify two or more instances within downlink transmission resources configured for control information transmissions, and may combine signals received in each of the two or more instances to generate a combined control information signal.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: June 9, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Yan Zhou, Tao Luo, Juan Montojo, Makesh Pravin John Wilson, Xiao Feng Wang, Xiaoxia Zhang, Sony Akkarakaran
  • Patent number: 10681725
    Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine that a signal characteristic of a unicast signal is better than a signal characteristic of a broadcast signal; and/or transmit, based at least in part on the determination, a request for an update to a master information block or a minimum system information block to be provided to the user equipment using the unicast signal. In some aspects, a base station may determine that a signal characteristic of a unicast signal associated with a user equipment (UE) is better than a signal characteristic of a broadcast signal broadcasted by the base station; and/or transmit, based on the determination, an update to a master information block (MIB) or a minimum system information block (MSIB) to the UE using the unicast signal. Numerous other aspects are provided.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: June 9, 2020
    Assignee: Qualcomm Incorporated
    Inventors: Kaushik Chakraborty, Tao Luo, Sumeeth Nagaraja, Keiichi Kubota, Makesh Pravin John Wilson, Juan Montojo, Xiao Feng Wang, Sony Akkarakaran, Wooseok Nam
  • Patent number: 10660056
    Abstract: Various aspects described herein relate to techniques for timing control with filtering in orthogonal frequency division multiplexing (OFDM)-based wireless communications systems. In an aspect, the method includes determining whether time-domain filtering or frequency-domain filtering is used for a transmission signal waveform, and identifying a time delay based on a determination that the time-domain filtering is used for the transmission signal waveform. The method further includes applying a timing correction based on the identified time delay. The techniques described herein may apply to different communications technologies, including 5th Generation (5G) New Radio (NR) communications technology.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: May 19, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Sony Akkarakaran, Peter Gaal, Xiao Feng Wang, Yi Huang, Tao Luo, Juan Montojo, Renqiu Wang, Seyong Park
  • Publication number: 20200147228
    Abstract: The invention discloses use of a conjugate of polyethylene glycol and a local anesthetic in non-anesthetic analgesia. A local anesthetic is prepared into a prodrug or a sustained release preparation, wherein a high molecular polymer such as polyethylene glycol in the prodrug is covalently bonded with a local anesthetic, and auxiliary materials with a sustained release effect in the sustained release preparation are non-covalently bonded to the local anesthetic. After administration, there is no anesthesia and analgesic effect before the release of the free local anesthetic. After the free local anesthetic is released, an analgesic effect is achieved.
    Type: Application
    Filed: December 22, 2017
    Publication date: May 14, 2020
    Applicant: JENKEM TECHNOLOGY CO., LTD. (TIANJIN)
    Inventors: Zewang FENG, Jinliang WANG, Yanli XIONG, Juan SHI, Xuan ZHAO
  • Patent number: 10638485
    Abstract: A base station (BS) may transmit, and a user equipment (UE) may receive, a physical broadcast channel, such as a narrowband physical broadcast channel (NB-PBCH). In an interference-limited scenario with synchronous cells in a network, repetitions of a symbol being transmitted for a first physical broadcast channel of a first cell may collide with repetitions of a symbol being transmitted for a second physical broadcast channel of a second cell. This may result in the UE being unable to recover symbols of a physical broadcast channel. In some aspects, the BS may transmit, and the UE may receive, a physical broadcast channel including bits processed using a first processing stage, such as using first scrambling sequences, and a second processing stage, such as using second scrambling sequences, to compensate for the interference, thereby ensuring that the UE can recover the symbols of the physical broadcast channel.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: April 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Alberto Rico Alvarino, Kapil Bhattad, Xiao feng Wang, Juan Montojo, Wanshi Chen, Peter Gaal
  • Patent number: 10636143
    Abstract: Systems and methods for determining a breast region in a medical image are provided. The methods may include obtaining a first image relating to the breast region, determining a first region including a first plurality of pixels in the breast region, determining a second region including a second plurality of pixels relating to an edge of the breast region, and determining the breast region by combining the first region and the second region. The second plurality of pixels may include at least a portion of the first plurality of pixels.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: April 28, 2020
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Na Zhang, Juan Feng, Yange Ma, Haihua Zhou, Le Yang, Hao Chen, Wanli Teng
  • Patent number: 10638378
    Abstract: User equipment (UE) selection of contention-free random access (CFRA) and contention-based random access (CBRA) for handover processing is discussed. The aspects include receiving a random access configuration at the UE including configuration for CFRA and CBRA. The UE will determine a first random access resource, wherein the first random access resource maps to one or more beams from a target base station. The UE may initiate a random access request using the CFRA when the first random access resource is a contention-free resource, and initiate the random access request using the CBRA when the first random access resource is a contention-based resource.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: April 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Sumeeth Nagaraja, Tao Luo, Makesh Pravin John Wilson, Sony Akkarakaran, Juan Montojo, Shengbo Chen, Wooseok Nam, Xiao Feng Wang, Kaushik Chakraborty
  • Patent number: 10600214
    Abstract: A method and system for image reconstruction are provided. A projection image of a projection object may be obtained. A processed projection image may be generated based on the projection image through one or more pre-process operations. A reconstructed image including an artifact may be reconstructed based on the processed projection image. The artifact may be a detector edge artifact, a projection object edge artifact, and a serrated artifact. The detector edge artifact, the projection object edge artifact, and the serrated artifact may be removed from the reconstructed image.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: March 24, 2020
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Le Yang, Haihua Zhou, Juan Feng, Kai Cui, Ji Qi, Na Zhang, Hao Chen, Jie Niu, Yecheng Han, Wanli Teng, Yange Ma
  • Patent number: 10586355
    Abstract: A method and system for image reconstruction are provided. A projection image of a projection object may be obtained. A processed projection image may be generated based on the projection image through one or more pre-process operations. A reconstructed image including an artifact may be reconstructed based on the processed projection image. The artifact may be a detector edge artifact, a projection object edge artifact, and a serrated artifact. The detector edge artifact, the projection object edge artifact, and the serrated artifact may be removed from the reconstructed image.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: March 10, 2020
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Le Yang, Haihua Zhou, Juan Feng, Kai Cui, Ji Qi, Na Zhang, Hao Chen, Jie Niu, Yecheng Han, Wanli Teng, Yange Ma
  • Patent number: 10574329
    Abstract: In an aspect, a scheduled entity obtains a first set of indications associated with a beam failure recovery procedure, starts at least one of a first timer or a second timer based on the obtained first set of indications, and detects a radio link failure when the first timer expires or when the second timer expires. In some aspects, the scheduled entity starts at least one of the first timer or the second timer when N out-of-sync indications are obtained over a network configured time window, the N out-of-sync indications including aperiodic out-of-sync indications from the first set of indications and out-of-sync indications associated with a radio link monitoring procedure. In some aspects, the scheduled entity starts at least the second timer when the first set of indications includes a single aperiodic out-of-sync indication.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: February 25, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Sumeeth Nagaraja, Tao Luo, Wooseok Nam, Xiao Feng Wang, Makesh Pravin John Wilson, Kaushik Chakraborty, Juan Montojo, Shengbo Chen