Patents by Inventor Linbo Li

Linbo Li 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: 12082017
    Abstract: A base station of a network provides a user equipment (UE) with information relating to monitoring a Physical Downlink Control Channel (PDCCH) of multiple component carrier (CCs) in a carrier aggregation (CA) scheme. The base station configures a first CC and a second CC of a CA combination for a user equipment (UE) and provides the UE with information for the CA combination, wherein the information comprises an indication whether the first CC and the second CC are collocated.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: September 3, 2024
    Assignee: Apple Inc.
    Inventors: Weidong Yang, Amir Farajidana, Chunhai Yao, Chunxuan Ye, Dawei Zhang, Haitong Sun, Hong He, Jie Cui, Keith W. Saints, Linbo Li, Oghenekome Oteri, Sigen Ye, Wei Zeng, Wei Zhang, Yang Tang, Yushu Zhang
  • Publication number: 20240284218
    Abstract: A user equipment (UE) monitors a Physical Downlink Control Channel (PDCCH) in multiple component carriers (CC). The UE determines if the UE is operating in carrier aggregation (CA) mode having a first CC in a first frequency band and a second CC in a second frequency band. When the UE is operating in CA with a first CC in the first frequency band and the second CC in the second frequency band, the UE determines a span pattern for PDCCH symbols being received on the first and second CC and selects a PDCCH monitoring type based on, at least, the span pattern. A UE also determines if a first CC and a second CC of a CA combination are collocated and selects a PDCCH monitoring type based on, at least, the determination of whether the first and second CC are collocated.
    Type: Application
    Filed: May 3, 2024
    Publication date: August 22, 2024
    Inventors: Weidong YANG, Amir FARAJIDANA, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Haitong SUN, Hong HE, Jie CUI, Keith W. SAINTS, Linbo LI, Oghenekome OTERI, Sigen YE, Wei ZENG, Wei ZHANG, Yang TANG, Yushu ZHANG
  • Publication number: 20240160528
    Abstract: A storage method includes: calculating M check blocks of N first data blocks based on a first erasure coding (EC) technology; respectively storing the N first data blocks and the M check blocks of the N first data blocks into (N+M) storage nodes in a storage system; updating the first EC technology to a second EC technology; calculating R check blocks of S second data blocks based on the second EC technology, where S is greater than N, a ratio of S to R is greater than a ratio of N to M, S, R, N, and M are all positive integers, and the second data block is a data block received after the first EC technology is updated to the second EC technology.
    Type: Application
    Filed: January 22, 2024
    Publication date: May 16, 2024
    Inventors: Linbo Li, Jun Tang
  • Patent number: 11979760
    Abstract: A user equipment (UE) monitors a Physical Downlink Control Channel (PDCCH) in multiple component carriers (CC). The UE determines if the UE is operating in carrier aggregation (CA) mode having a first CC in a first frequency band and a second CC in a second frequency band. When the UE is operating in CA with a first CC in the first frequency band and the second CC in the second frequency band, the UE determines a span pattern for PDCCH symbols being received on the first and second CC and selects a PDCCH monitoring type based on, at least, the span pattern. A UE also determines if a first CC and a second CC of a CA combination are collocated and selects a PDCCH monitoring type based on, at least, the determination of whether the first and second CC are collocated.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: May 7, 2024
    Assignee: Apple Inc.
    Inventors: Weidong Yang, Amir Farajidana, Chunhai Yao, Chunxuan Ye, Dawei Zhang, Haitong Sun, Hong He, Jie Cui, Keith W. Saints, Linbo Li, Oghenekome Oteri, Sigen Ye, Wei Zeng, Wei Zhang, Yang Tang, Yushu Zhang
  • Publication number: 20220312238
    Abstract: A base station of a network provides a user equipment (UE) with information relating to monitoring a Physical Downlink Control Channel (PDCCH) of multiple component carrier (CCs) in a carrier aggregation (CA) scheme. The base station configures a first CC and a second CC of a CA combination for a user equipment (UE) and provides the UE with information for the CA combination, wherein the information comprises an indication whether the first CC and the second CC are collocated.
    Type: Application
    Filed: August 4, 2020
    Publication date: September 29, 2022
    Inventors: Weidong YANG, Amir FARAJIDANA, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Haitong SUN, Hong HE, Jie CUI, Keith W. SAINTS, Linbo LI, Oghenekome OTERI, Sigen YE, Wei ZENG, Wei ZHANG, Yang TANG, Yushu ZHANG
  • Publication number: 20220303799
    Abstract: A user equipment (UE) monitors a Physical Downlink Control Channel (PDCCH) in multiple component carriers (CC). The UE determines if the UE is operating in carrier aggregation (CA) mode having a first CC in a first frequency band and a second CC in a second frequency band. When the UE is operating in CA with a first CC in the first frequency band and the second CC in the second frequency band, the UE determines a span pattern for PDCCH symbols being received on the first and second CC and selects a PDCCH monitoring type based on, at least, the span pattern. A UE also determines if a first CC and a second CC of a CA combination are collocated and selects a PDCCH monitoring type based on, at least, the determination of whether the first and second CC are collocated.
    Type: Application
    Filed: August 4, 2020
    Publication date: September 22, 2022
    Inventors: Weidong YANG, Amir FARAJIDANA, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Haitong SUN, Hong HE, Jie CUI, Keith W. SAINTS, Linbo LI, Oghenekome OTERI, Sigen YE, Wei ZENG, Wei ZHANG, Yang TANG, Yushu ZHANG
  • Patent number: 10873491
    Abstract: An apparatus including a plurality of multipliers each configured to multiply correlations by a weight, wherein the correlations include a plurality of subsets of correlations, wherein the weight of each of the plurality of multipliers is uniquely different from the weights of at least two of the plurality of multipliers and the correlations; a summation processor configured to sum the weight multiplied correlations of the plurality of multipliers for time n, where n is an integer; and a coarse timing and coarse frequency processor configured to generate a coarse timing and a coarse frequency based on the sum.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: December 22, 2020
    Inventors: Xiaoqiang Ma, Hongbing Cheng, Linbo Li, Jungwon Lee
  • Patent number: 10855510
    Abstract: Apparatuses, systems, and methods are described concerning a new type of superposition multiplexing transmission constellation (super-constellation): the Gray-mapped Non-uniform-capable Constellation (GNC). Apparatuses, systems, and methods for generating GNC super-constellations are described, as well as apparatuses, systems, and methods for receiving, demapping, and decoding transmissions using GNC super-constellations. Apparatuses, systems, and methods for selecting a type of superposition multiplexing transmission constellation based on various conditions are also described.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: December 1, 2020
    Inventors: Hyukjoon Kwon, Linbo Li, Jungwon Lee, Sandeep Krishnamurthy
  • Patent number: 10785079
    Abstract: A method and apparatus are provided. The method includes receiving a reference signal from a transceiver, estimating a time offset (TO) of the reference signal in the frequency domain based on a spectral phase ramp introduced by the TO, compensating the TO of the reference signal based on the estimated TO in the frequency domain by applying the spectral phase ramp to the received reference signal, and providing a TO compensated signal of the reference signal.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: September 22, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Amir Dezfooliyan, Vignesh Sethuraman, Hamed Maleki, Linbo Li, Kee-Bong Song
  • Patent number: 10749725
    Abstract: Apparatuses, systems, and methods are described concerning a new type of superposition multiplexing transmission constellation (super-constellation): the Gray-mapped Non-uniform-capable Constellation (GNC). Apparatuses, systems, and methods for generating GNC super-constellations are described, as well as apparatuses, systems, and methods for receiving, demapping, and decoding transmissions using GNC super-constellations. Apparatuses, systems, and methods for selecting a type of superposition multiplexing transmission constellation based on various conditions are also described.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: August 18, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hyukjoon Kwon, Linbo Li, Jungwon Lee, Sandeep Krishnamurthy
  • Patent number: 10575267
    Abstract: A method and apparatus are provided. The method includes receiving a signal from a transceiver, demapping a bit pattern encoded within the signal, detecting a preamble based on the demapped bit pattern, and synchronizing the transceiver to a receiver using the preamble, wherein demapping the bit pattern is based on weighting coefficients.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: February 25, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hyukjoon Kwon, Linbo Li
  • Patent number: 10564177
    Abstract: A system to recognize user activity includes a filter to form a gravity measurement from a three-dimensional (3D) accelerometer measurement of a user activity; a body component extractor to form a body measurement of the user activity by removing the gravity measurement from the 3D accelerometer measurement; a rotation matrix calculator to form a rotation matrix that is used to rotate the extracted gravity to align with a predetermined direction, and to rotate the 3D accelerometer measurements and the body measurement to be the input to features determiner module; and a features determiner to determine values of a predetermined number of features of the user activity based on the rotated 3D accelerometer measurement and the rotated body measurement in which the predetermined number of features are invariant under arbitrary rotation of the accelerometer measurement around the predetermined direction.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: February 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Xue Li, Linbo Li, Andrey Zobenko, Seongwook Song
  • Publication number: 20190363922
    Abstract: A method and apparatus are provided. The method includes receiving a reference signal from a transceiver, estimating a time offset (TO) of the reference signal in the frequency domain based on a spectral phase ramp introduced by the TO, compensating the TO of the reference signal based on the estimated TO in the frequency domain by applying the spectral phase ramp to the received reference signal, and providing a TO compensated signal of the reference signal.
    Type: Application
    Filed: August 9, 2019
    Publication date: November 28, 2019
    Inventors: Amir DEZFOOLIYAN, Vignesh SETHURAMAN, Hamed MALEKI, Linbo LI, Kee-Bong SONG
  • Patent number: 10432391
    Abstract: A receiver of a modulated signal is presented. The receiver includes a synchronization detector configured to receive a signal indicative of the modulated signal that includes a synchronization header and a data payload, and to detect an end of the synchronization header. The synchronization detector is configured to generate a differential signal based on the signal, perform cross-correlation of the differential signal with a reference differential signal to generate a cross-correlation output, compare a first sample of the cross-correlation output at a sample index associated with a hypothesized start frame delimiter (SFD) peak index with a second sample of the cross-correlation output at a sample index associated with a hypothesized preamble peak index, and detect an end of the synchronization header in response to a comparison result in which a magnitude of the first sample is greater than a magnitude of the second sample of the cross-correlation output.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: October 1, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Farrokh Etezadi, Linbo Li, Chun Kin Au Yeung, Xiaoqiang Ma
  • Patent number: 10419248
    Abstract: Methods and apparatuses are provided in which a signal is received at a receiver. A processor of the receiver computes frequency offset (FO) inter-carrier interference (ICI) compensation, based on a real matrix part of an approximate ICI matrix and an FO estimated from the received signal. The processor applies the FO ICI compensation to the received signal in a frequency domain to produce an ICI compensated output. The processor applies a phase rotation to the ICI compensated output.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: September 17, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Amir Dezfooliyan, Vignesh Sethuraman, Hyukjoon Kwon, Hamed Maleki, Linbo Li, Kee-Bong Song
  • Patent number: 10382244
    Abstract: A method and apparatus are provided. The method includes receiving a reference signal from a transceiver, estimating a time offset (TO) of the reference signal in the frequency domain based on an accumulation of subcarriers before cross-correlation, providing a TO compensated signal of the reference signal based on the estimated TO in the frequency domain, transforming the TO compensated signal into the time domain, and estimating a frequency offset (FO) based on the time domain TO compensated signal.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: August 13, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Amir Dezfooliyan, Vignesh Sethuraman, Hamed Maleki, Linbo Li, Kee-Bong Song
  • Patent number: 10355792
    Abstract: A system and method for removing bias from a frequency estimate. A simulation is used to predict, for various values of the signal to noise ratio, a bias in a raw frequency estimate produced by a frequency estimation algorithm. A straight line is fit to simulated frequency offset estimates as a function of true frequency offset, and the reciprocal of the slope of the line is stored, as a multiplicative bias removal term, in a lookup table, for the simulated signal to noise ratio. In operation, the raw frequency estimate is multiplied by a multiplicative bias removal term, obtained from the lookup table, to form a corrected frequency offset estimate.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 16, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoo Jin Choi, Dongwoon Bai, Linbo Li, Farrokh Etezadi, Jungwon Lee
  • Publication number: 20190173724
    Abstract: Apparatuses, systems, and methods are described concerning a new type of superposition multiplexing transmission constellation (super-constellation): the Gray-mapped Non-uniform-capable Constellation (GNC). Apparatuses, systems, and methods for generating GNC super-constellations are described, as well as apparatuses, systems, and methods for receiving, demapping, and decoding transmissions using GNC super-constellations. Apparatuses, systems, and methods for selecting a type of superposition multiplexing transmission constellation based on various conditions are also described.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Inventors: Hyukjoon KWON, Linbo Li, Jungwon Lee, Sandeep Krishnamurthy
  • Publication number: 20190173718
    Abstract: An apparatus including a plurality of multipliers each configured to multiply correlations by a weight, wherein the correlations include a plurality of subsets of correlations, wherein the weight of each of the plurality of multipliers is uniquely different from the weights of at least two of the plurality of multipliers and the correlations; a summation processor configured to sum the weight multiplied correlations of the plurality of multipliers for time n, where n is an integer; and a coarse timing and coarse frequency processor configured to generate a coarse timing and a coarse frequency based on the sum.
    Type: Application
    Filed: February 6, 2019
    Publication date: June 6, 2019
    Inventors: Xiaoqiang MA, Hongbing Cheng, Linbo Li, Jungwon Lee
  • Publication number: 20190173725
    Abstract: Apparatuses, systems, and methods are described concerning a new type of superposition multiplexing transmission constellation (super-constellation): the Gray-mapped Non-uniform-capable Constellation (GNC). Apparatuses, systems, and methods for generating GNC super-constellations are described, as well as apparatuses, systems, and methods for receiving, demapping, and decoding transmissions using GNC super-constellations. Apparatuses, systems, and methods for selecting a type of superposition multiplexing transmission constellation based on various conditions are also described.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Inventors: Hyukjoon KWON, Linbo LI, Jungwon LEE, Sandeep KRISHNAMURTHY