Patents by Inventor Tianyi Xu

Tianyi 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: 20200382189
    Abstract: Multiple mobility sets are maintained for nodes of radio networks. The sets comprise information such as: transmit and receive point identities; cell identities; beam identities; frequency channels; channel bandwidth; and black lists. The sets may be defined at different levels, such as network and physical (PHY) level. A network mobility set, e.g., a new-radio (NR) mobility set may, be determined by the gNB, the cell, the UE, or another device. Multiple radio access network nodes and UEs may exchange mobility set information to achieve a distributed mobility solution. A UE may monitor its orientation relative to a TRP, e.g., via use of an onboard MEMS gyroscope, and alter its beamforming parameters in response to changes in orientation and/or changes in TRP connection strength. Cell selection and reselection for beam based networks may use Single Frequency Network (SFN) broadcast of initial access signals without beam sweeping.
    Type: Application
    Filed: August 18, 2020
    Publication date: December 3, 2020
    Inventors: Wei Chen, Pascal Adjakple, Joseph M. Murray, Qing Li, Qian Zhang, Lakshmi R. Iyer, Tianyi Xu, Guodong Zhang, Allan Tsai
  • Patent number: 10812238
    Abstract: It is recognized herein that current LTE reference signals may be inadequate for future cellular (e.g., New Radio) systems. Configurable reference signals are described herein. The configurable reference signals can support mixed numerologies and different reference signal (RS) functions. Further, reference signals can be configured so as to support beam sweeping and beamforming training.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: October 20, 2020
    Assignee: Convida Wireless, LLC
    Inventors: Qian Zhang, Qing Li, Allan Y. Tsai, Guodong Zhang, Lakshmi R. Iyer, Tianyi Xu, Pascal M. Adjakple, Ahmed Elsamadouny, Salman Khan, Yifan Li
  • Patent number: 10804989
    Abstract: Multiple mobility sets are maintained for nodes of radio networks. The sets comprise information such as: transmit and receive point identities; cell identities; beam identities; frequency channels; channel bandwidth; and black lists. The sets may be defined at different levels, such as network and physical (PHY) level. A network mobility set, e.g., a new-radio (NR) mobility set may, be determined by the gNB, the cell, the UE, or another device. Multiple radio access network nodes and UEs may exchange mobility set information to achieve a distributed mobility solution. A UE may monitor its orientation relative to a TRP, e.g., via use of an onboard MEMS gyroscope, and alter its beamforming parameters in response to changes in orientation and/or changes in TRP connection strength. Cell selection and reselection for beam based networks may use Single Frequency Network (SFN) broadcast of initial access signals without beam sweeping.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: October 13, 2020
    Assignee: Convida Wireless, LLC
    Inventors: Wei Chen, Pascal M. Adjakple, Joseph M. Murray, Qing Li, Qian Zhang, Lakshmi R. Iyer, Tianyi Xu, Guodong Zhang, Allan Y. Tsai
  • Publication number: 20200322816
    Abstract: It is recognized herein that as the number of transmit antennas in cellular systems (e.g., NR or 5G systems) increase, the Channel State information (CSI) feedback overhead may increase to unacceptable levels, and the current CSI feedback might not support beamforming training for NR. Embodiments described herein provide an enhanced and more efficient design for Channel State Information feedback as compared to current approaches.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 8, 2020
    Inventors: Tianyi Xu, Qian Zhang, Allan Y. Tsai, Guodong Zhang, Lakshmi R. Iyer, Qing Li
  • Patent number: 10791531
    Abstract: The present application is directed to an apparatus for wireless communication. The apparatus includes a non-transitory memory including instructions stored thereon for performing the wireless communication. The apparatus also includes a processor, operably coupled to the non-transitory memory, capable of executing an instruction of receiving a beam sweeping block carrying downlink initial access signals including a first synchronization signal, a second synchronization signal, a beam reference signal and a PBCH monitoring transmission of a downlink sweeping subframe. The processor is capable of also executing the instruction of determining, based on the downlink initial access signals, an identity of the beam sweeping block associated with the downlink initial access signal. A part of the identity of the beam sweeping block is associated with the beam reference signal. The present application is also directed to a method for performing wireless communication.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: September 29, 2020
    Assignee: Convida Wireless, LLC
    Inventors: Allan Y. Tsai, Lakshmi R. Iyer, Guodong Zhang, Joseph M. Murray, Qing Li, Wei Chen, Pascal M. Adjakple, Tianyi Xu
  • Patent number: 10735980
    Abstract: It is recognized herein that as the number of transmit antennas in cellular systems (e.g., NR or 5G systems) increase, the Channel State information (CSI) feedback overhead may increase to unacceptable levels, and the current CSI feedback might not support beamforming training for NR. Embodiments described herein provide an enhanced and more efficient design for Channel State Information feedback as compared to current approaches.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: August 4, 2020
    Assignee: Convida Wireless, LLC
    Inventors: Tianyi Xu, Qian Zhang, Allan Y. Tsai, Guodong Zhang, Lakshmi R. Iyer, Qing Li
  • Publication number: 20200221480
    Abstract: Current approaches to transmitting uplink data in a network often require resources to be granted. In an example, a node or apparatus may configure a plurality of devices to operate in a grant-less mode in accordance with a respective grant-less access allocation, such that, when the plurality of devices transmit messages uplink in the network, the messages are transmitted using frequency resources defined by the respective grant-less access allocation, and the plurality of devices transmit the messages without being granted access to transmit the messages, so as to operate in the grant-less mode.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Inventors: Qing Li, Guodong Zhang, Pascal M. Adjakple, Lakshmi R. Iyer, Allan Y. Tsai, Qian Zhang, Wei Chen, Joseph M. Murray, Tianyi Xu
  • Patent number: 10687354
    Abstract: Current approaches to transmitting uplink data in a network often require resources to be granted. In an example, a node or apparatus may configure a plurality of devices to operate in a grant-less mode in accordance with a respective grant-less access allocation. Grant-less operations may be managed, for example, to meet the reliability and latency requirements and battery life requirements for different types of devices. For example, the state transition between grant-less and grant based may be managed.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: June 16, 2020
    Assignee: Convida Wireless, LLC
    Inventors: Qing Li, Guodong Zhang, Pascal M. Adjakple, Allan Y. Tsai, Qian Zhang, Lakshmi R. Iyer, Wei Chen, Joseph M. Murray, Tianyi Xu
  • Patent number: 10631319
    Abstract: Current approaches to transmitting uplink data in a network often require resources to be granted. In an example, a node or apparatus may configure a plurality of devices to operate in a grant-less mode in accordance with a respective grant-less access allocation, such that, when the plurality of devices transmit messages uplink in the network, the messages are transmitted using frequency resources defined by the respective grant-less access allocation, and the plurality of devices transmit the messages without being granted access to transmit the messages, so as to operate in the grant-less mode.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: April 21, 2020
    Assignee: Convida Wireless, LLC
    Inventors: Qing Li, Guodong Zhang, Pascal M. Adjakple, Lakshmi R. Iyer, Allan Y. Tsai, Qian Zhang, Wei Chen, Joseph M. Murray, Tianyi Xu
  • Publication number: 20200084754
    Abstract: New radio download numerology allocation information may be obtained through master information block data, system information block data, radio resource control signals, or signals or a physical downlink numerology indication channel, and used along with a reference signal detected in a search space to obtain resource element positions in an antenna port reference signal in a resource block that belongs to a particular band slice according to a reference signal allocation scheme for a band slice numerology. A physical download control may then be decoded based upon one or more resource elements of the reference signal, allowing the connection of, e.g., an enhanced mobile broadband, massive machine type communication, or ultra-reliable/low-latency application to a communications network thereby. Alternatively, multiple physical downlink control channels may be blindly demodulated at each of a number calculated reference signal locations, and one channel selected based on passing a cyclic redundancy check.
    Type: Application
    Filed: November 12, 2019
    Publication date: March 12, 2020
    Inventors: Allan Y. Tsai, Lakshmi R. Iyer, Guodong Zhang, Qian Zhang, Pascal M. Adjakple, Qing Li, Joseph M. Murray, Tianyi Xu, Wei Chen, Ahmed ElSamadouny, Salman Khan, Yifan Li
  • Publication number: 20200028632
    Abstract: Hybrid automatic repeat request (HARQ) processes, indicators, and similar methods may be used improve new radio performance in a number of ways. For example HARQ processes may be retransmitted, even before a response is expected, a number of times. Separate acknowledgement may be provided for various code blocks within a single transport block. Multi-bit ACK/NACK signaling may be used to efficiently express the status of individual code blocks or groups of code blocks within a transmission block. Grantless transmissions may be acknowledged implicitly, e.g., via responses comprising downlink control information or sent via a physical hybrid automatic repeat request indicator channel.
    Type: Application
    Filed: August 21, 2019
    Publication date: January 23, 2020
    Inventors: Lakshmi R. Iyer, Allan Y. Tsai, Tianyi Xu, Guodong Zhang, Pascal M. Adjakple, Qing Li, Wei Chen, Qian Zhang, Joseph M. Murray
  • Publication number: 20200008216
    Abstract: It is recognized herein that, in some cases, URLLC transmissions may preempt a scheduled eMBB transmission. Thus, in accordance with one embodiment, resources are allocated for URLLC data transmission in a manner that minimally impacts eMBB data transmissions. In an example code block groups are configured for efficient multi-bit A/N feedback. Multi-bit A/N methods are disclosed with and without explicit resource allocation. Various preemption mechanisms are also described herein including, for example, puncturing, dropping the tail end of a transport block, and increasing rate matching.
    Type: Application
    Filed: March 20, 2018
    Publication date: January 2, 2020
    Inventors: Lakshmi R. IYER, Tianyi XU, Qing LI, Pascal M. ADJAKPLE, Guodong ZHANG, Joseph M. MURRAY, Allan Y. TSAI
  • Publication number: 20200000421
    Abstract: A system includes a storage device storing a set of instructions and at least one processor in communication with the storage device, wherein when executing the instructions, the at least one processor is configured to cause the system to determine a first scan area on a scanning object. The system may also acquire raw data generated by scanning the first scan area on the scanning object and generate a positioning image based on the raw data. The system may also generate a pixel value distribution curve based on the positioning image, and determine a second scan area on the scanning object based on the pixel value distribution curve. The system may also scan the second scan area on the scanning object.
    Type: Application
    Filed: September 12, 2019
    Publication date: January 2, 2020
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventor: Tianyi XU
  • Patent number: 10524244
    Abstract: New radio download numerology allocation information may be obtained through master information block data, system information block data, radio resource control signals, or signals or a physical downlink numerology indication channel, and used along with a reference signal detected in a search space to obtain resource element positions in an antenna port reference signal in a resource block that belongs to a particular band slice according to a reference signal allocation scheme for a band slice numerology. A physical download control may then be decoded based upon one or more resource elements of the reference signal, allowing the connection of, e.g., an enhanced mobile broadband, massive machine type communication, or ultra-reliable/low-latency application to a communications network thereby. Alternatively, multiple physical downlink control channels may be blindly demodulated at each of a number calculated reference signal locations, and one channel selected based on passing a cyclic redundancy check.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: December 31, 2019
    Assignee: Convida Wireless, LLC
    Inventors: Allan Y. Tsai, Lakshmi R. Iyer, Guodong Zhang, Qian Zhang, Pascal M. Adjakple, Qing Li, Joseph M. Murray, Tianyi Xu, Wei Chen, Ahmed ElSamadouny, Salman Khan, Yifan Li
  • Publication number: 20190349960
    Abstract: Methods, systems, and apparatuses are described herein for beamforming based initial access, beam management, and beam based mobility designs for NR systems. Issues are identified and addressed related to, for example, initial access, control channel design, eMBB and URLLC mixing, and beam training.
    Type: Application
    Filed: January 5, 2018
    Publication date: November 14, 2019
    Inventors: Qing LI, Lakshmi R. IYER, Allan Y. TSAI, Guodong ZHANG, Tianyi XU, Wei CHEN, Pascal M. ADJAKPLE, Joseph M. MURRAY
  • Publication number: 20190342768
    Abstract: It is recognized herein that as the number of transmit antennas in cellular systems (e.g., NR or 5G systems) increase, the Channel State information (CSI) feedback overhead may increase to unacceptable levels, and the current CSI feedback might not support beamforming training for NR. Embodiments described herein provide an enhanced and more efficient design for Channel State Information feedback as compared to current approaches.
    Type: Application
    Filed: August 11, 2017
    Publication date: November 7, 2019
    Inventors: Tianyi XU, Qian ZHANG, Allan Y. TSAI, Guodong ZHANG, Lakshmi R. IYER, Qing LI
  • Publication number: 20190319686
    Abstract: Multiple mobility sets are maintained for nodes of radio networks. The sets comprise information such as: transmit and receive point identities; cell identities; beam identities; frequency channels; channel bandwidth; and black lists. The sets may be defined at different levels, such as network and physical (PHY) level. A network mobility set, e.g., a new-radio (NR) mobility set may, be determined by the gNB, the cell, the UE, or another device. Multiple radio access network nodes and UEs may exchange mobility set information to achieve a distributed mobility solution. A UE may monitor its orientation relative to a TRP, e.g., via use of an onboard MEMS gyroscope, and alter its beamforming parameters in response to changes in orientation and/or changes in TRP connection strength. Cell selection and reselection for beam based networks may use Single Frequency Network (SFN) broadcast of initial access signals without beam sweeping.
    Type: Application
    Filed: July 20, 2017
    Publication date: October 17, 2019
    Inventors: Wei CHEN, IV, Pascal M. ADJAKPLE, Joseph M. MURRAY, Qing LI, Qian ZHANG, Kakshmi R. IYER, Tianyi XU, Guodong ZHANG, Allan Y. TSAI
  • Publication number: 20190313443
    Abstract: Current approaches to transmitting uplink data in a network often require resources to be granted. In an example, a node or apparatus may configure a plurality of devices to operate in a grant-less mode in accordance with a respective grant-less access allocation. Grant-less operations may be managed, for example, to meet the reliability and latency requirements and battery life requirements for different types of devices. For example, the state transition between grant-less and grant based may be managed.
    Type: Application
    Filed: April 15, 2019
    Publication date: October 10, 2019
    Inventors: Qing Li, Guodong Zhang, Pascal M. Adjakple, Allan Y. Tsai, Qian Zhang, Lakshmi R. Iyer, Wei Chen, Joseph M. Murray, Tianyi Xu
  • Patent number: 10432362
    Abstract: Hybrid automatic repeat request (HARQ) processes, indicators, and similar methods may be used improve new radio performance in a number of ways. For example HARQ processes may be retransmitted, even before a response is expected, a number of times. Separate acknowledgement may be provided for various code blocks within a single transport block. Multi-bit ACK/NACK signaling may be used to efficiently express the status of individual code blocks or groups of code blocks within a transmission block. Grantless transmissions may be acknowledged implicitly, e.g., via responses comprising downlink control information or sent via a physical hybrid automatic repeat request indicator channel.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: October 1, 2019
    Assignee: Convida Wireless, LLC
    Inventors: Lakshmi R. Iyer, Allan Y. Tsai, Tianyi Xu, Guodong Zhang, Pascal M. Adjakple, Qing Li, Wei Chen, Qian Zhang, Joseph M. Murray
  • Publication number: 20190288809
    Abstract: Flexibly configured containers consisting of resources within time-frequency blocks may be used to support multiple numerologies in new radio architectures. Uplink control may be defined in resources within a container, or in dedicated resources, by various nodes. Sounding reference signal resources may be dynamically configured for each numerology. The sequence length may be adapted, as well as the time domain location of symbols. Time, frequency, and orthogonal resources may be allocated via a downlink control channel or a radio resource control. Sounding reference signals may be pre-coded, and pre-coding weights may be based on a codebook or non-codebook approaches, e.g., via a radio resource control or a downlink RRC or DL control channel. Pre-coded sounding reference signals may be adapted to user equipment antenna configuration. Further, NR-SRS may be used as UL demodulation RS (DM-RS).
    Type: Application
    Filed: June 7, 2019
    Publication date: September 19, 2019
    Inventors: Lakshmi R. Iyer, Guodong Zhang, Qian Zhang, Allan Y. Tsai, Joseph M. Murray, Pascal M. Adjakple, Qing Li, Tianyi Xu, Wei Chen, Ahmed ElSamadouny, Salman Khan, Yifan Li