Patents by Inventor Sili Lu

Sili Lu 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: 11950233
    Abstract: A user equipment (UE) and a method are provided. The UE includes a memory and a processor configured to receive data from at least one neighboring UE; determine, based at least partially on the received data, whether to send an assistance report including assistance information providing an indication related to communication; and transmit the assistance report including the assistance information in response to determining to send the assistance report.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: April 2, 2024
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yaser Mohamed Mostafa Kamal Fouad, Jung Hyun Bae, Sili Lu
  • Patent number: 11871388
    Abstract: A method and apparatus are provided for pre-emption, congestion control, and Tx/Rx alignment for use by a partial sensing UE. A method includes measuring resources within a first window; determining a number of the measured resources having an RSSI greater than a first threshold; determining a CBR based on the measured number of resources; and determining a CR limit based on the determined CBR and transmission priority.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: January 9, 2024
    Inventors: Yaser Mohamed Mostafa Kamal Fouad, Jung Hyun Bae, Sili Lu
  • Patent number: 11644566
    Abstract: Embodiments are disclosed that for synthetic aperture radar (SAR) systems and methods that process radar image data to generate radar images using vector processor engines, such as single-instruction-multiple-data (SIMD) processor engines. The vector processor engines can be further augmented with accelerators that vectorize element selection thereby expediting memory accesses required for interpolation operations performed by the vector processor engines.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: May 9, 2023
    Assignee: NXP USA, Inc.
    Inventors: Ryan Haoyun Wu, Jayakrishnan Cheriyath Mundarath, Sili Lu, Maik Brett
  • Publication number: 20230079867
    Abstract: A method and apparatus are provided for pre-emption, congestion control, and Tx/Rx alignment for use by a partial sensing UE. A method includes measuring resources within a first window; determining a number of the measured resources having an RSSI greater than a first threshold; determining a CBR based on the measured number of resources; and determining a CR limit based on the determined CBR and transmission priority.
    Type: Application
    Filed: November 22, 2022
    Publication date: March 16, 2023
    Inventors: Yaser Mohamed Mostafa Kamal FOUAD, Jung Hyun Bae, Sili Lu
  • Publication number: 20220116925
    Abstract: A user equipment (UE) and a method are provided. The UE includes a memory and a processor configured to receive data from at least one neighboring UE; determine, based at least partially on the received data, whether to send an assistance report including assistance information providing an indication related to communication; and transmit the assistance report including the assistance information in response to determining to send the assistance report.
    Type: Application
    Filed: September 8, 2021
    Publication date: April 14, 2022
    Inventors: Yaser Mohamed Mostafa Fouad, Jung Hyun Bae, Sili Lu
  • Publication number: 20220116942
    Abstract: A method and apparatus are provided for pre-emption, congestion control, and transmission (Tx)/reception (Rx) alignment for use by user equipments (UEs) with limited power. The method includes identifying a set of mandatory slots per at least one resource pool or bandwidth part (BWP); monitoring the set of mandatory slots; and receiving transmission (Tx) and reception (Rx) alignment information during at least one of the monitored mandatory slots.
    Type: Application
    Filed: August 24, 2021
    Publication date: April 14, 2022
    Inventors: Yaser Mohamed Mostafa Kamal FOUAD, Jung Hyun Bae, Sili Lu
  • Publication number: 20210239827
    Abstract: Embodiments are disclosed that for synthetic aperture radar (SAR) systems and methods that process radar image data to generate radar images using vector processor engines, such as single-instruction-multiple-data (SIMD) processor engines. The vector processor engines can be further augmented with accelerators that vectorize element selection thereby expediting memory accesses required for interpolation operations performed by the vector processor engines.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 5, 2021
    Inventors: Ryan Haoyun Wu, Jayakrishnan Cheriyath Mundarath, Sili Lu, Maik Brett
  • Patent number: 11012225
    Abstract: A synchronization detection method for new radio (NR) sidelink. In some embodiments, the method includes calculating a first delay compensated input signal, calculating a first correlation value, calculating a first correlation power, calculating a first weighted correlation power, and detecting a synchronization signal. The first delay compensated input signal may be based on an input signal, and an index of a first tap value. The first correlation value may be based on a first candidate sequence and the first delay compensated input signal. The first correlation power may be based on the first correlation value. The first weighted correlation power may be based on a first weighting factor, and the first correlation power. The detecting of the synchronization signal may include using the first weighted correlation power.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: May 18, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sili Lu, Hongbing Cheng
  • Publication number: 20190132182
    Abstract: A constellation mapping method, system, and apparatus are provided for mapping a received bit stream of data to a higher order symbol vector by processing a first set of selected bits from the received bit stream with a quadrant selector to identify a first quadrant offset vector corresponding a higher order quadrant in which an intended symbol is to be mapped, processing a second set of selected bits from the received bit stream with a 16-QAM mapper to identify a 16-QAM symbol vector, transforming the 16-QAM symbol vector into a transformed 16 QAM symbol vector based on the identified higher order quadrant, and combining the transformed 16-QAM symbol vector with the first quadrant offset vector to map the bit stream of data to a higher order symbol vector.
    Type: Application
    Filed: November 2, 2017
    Publication date: May 2, 2019
    Applicant: NXP USA, Inc.
    Inventors: Sili Lu, Leo G. Dehner
  • Patent number: 10277448
    Abstract: A constellation mapping method, system, and apparatus are provided for mapping a received bit stream of data to a higher order symbol vector by processing a first set of selected bits from the received bit stream with a quadrant selector to identify a first quadrant offset vector corresponding a higher order quadrant in which an intended symbol is to be mapped, processing a second set of selected bits from the received bit stream with a 16-QAM mapper to identify a 16-QAM symbol vector, transforming the 16-QAM symbol vector into a transformed 16 QAM symbol vector based on the identified higher order quadrant, and combining the transformed 16-QAM symbol vector with the first quadrant offset vector to map the bit stream of data to a higher order symbol vector.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: April 30, 2019
    Assignee: NXP USA, Inc.
    Inventors: Sili Lu, Leo G. Dehner
  • Patent number: 9137083
    Abstract: A receiver and a method for providing block synchronization of symbols and integral frequency offset correction of subcarriers are provided. Samples of a received signal are transformed into the frequency domain. Subcarrier extraction is performed to extract selected subcarriers. The extracted subcarriers are differentially demodulated using subcarriers from the previous symbol and coherently combined with reference subcarrier values to obtain sample vectors. The sample vectors are obtained over a number of symbols preferably equal to the number symbols in a block. Cyclic correlation is performed on those sample vectors relative to a known synchronization (sync) pattern. A maximum magnitude search is performed over sample vectors obtained from the cyclic correlation to determine an integral frequency offset and a block boundary of the received signal. The integral frequency offset and the block boundary can be used to tune and synchronize the receiver for proper reception of the received signal.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: September 15, 2015
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Sili Lu, Leo G. Dehner
  • Patent number: 8457222
    Abstract: A method of estimating channel statistics includes storing a plurality of pilot symbols from a plurality of received signals, establishing a reference for correlation; computing instantaneous correlations for each time lag of each of the plurality of pilot symbols relative to the reference, providing a table comprising non-isotropic scattering correlation values, computing current refined correlations using previous refined correlations and instantaneous correlations, comparing current refined correlations to the table of correlation values, and choosing correlation values from the table based on the step of comparing current refined correlations to the table.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: June 4, 2013
    Assignee: Apple Inc.
    Inventors: Ahsan U. Aziz, Sili Lu
  • Publication number: 20100061468
    Abstract: A method of estimating channel statistics includes storing a plurality of pilot symbols from a plurality of received signals, establishing a reference for correlation; computing instantaneous correlations for each time lag of each of the plurality of pilot symbols relative to the reference, providing a table comprising non-isotropic scattering correlation values, computing current refined correlations using previous refined correlations and instantaneous correlations, comparing current refined correlations to the table of correlation values, and choosing correlation values from the table based on the step of comparing current refined correlations to the table.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 11, 2010
    Inventors: Ahsan U. Aziz, Sili Lu