Patents by Inventor Chengjun Sun

Chengjun Sun 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: 20200413418
    Abstract: Disclosed is a method for communication by a base station in a wireless communication system, including transmitting, to a user equipment (UE), downlink control information (DCI) including information on a modulation and coding scheme (MCS) for processing downlink data using an MCS table among a plurality of tables, and transmitting, to the UE, the downlink data, wherein each of the plurality of MCS tables indicates modulation orders and code rates, wherein the plurality of MCS tables comprises a first MCS table which supports 256 quadrature amplitude modulation (QAM) and a second MCS table which does not support 256 QAM, and wherein a number of MCS indexes in the first MCS table is equal to a number of MCS indexes in the second MCS table.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: Yingyang LI, Chengjun SUN
  • Patent number: 10859578
    Abstract: Methods and compositions are provided that include a multichromophore and/or multichromophore complex for identifying a target biomolecule. A sensor biomolecule, for example, an antibody can be covalently linked to the multichromophore. Additionally, a signaling chromophore can be covalently linked to the multichromophore. The arrangement is such that the signaling chromophore is capable of receiving energy from the multichromophore upon excitation of the multichromophore. Since the sensor biomolecule is capable of interacting with the target biomolecule, the multichromophore and/or multichromophore complex can provide enhanced detection signals for a target biomolecule.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: December 8, 2020
    Assignee: SKIGEN, INC.
    Inventors: Brent S. Gaylord, Janice W. Hong, Tsu-Ju Fu, ChengJun Sun, Russell A. Baldocchi
  • Patent number: 10862641
    Abstract: The present disclosure provides a data transmission method. A UE receives CSI-RS configuration signaling from a base station, measuring and reporting CSI according to the CSI-RS configuration signaling. The UE receives scheduling signaling from the base station, and receives downlink data according to the scheduling signaling. The method provides a way of measuring and feeding back CSI with reduced CSI-RS overhead. The method can configure DMRS ports in a flexible manner. Therefore, performances of MU-MIMO can be optimized.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: December 8, 2020
    Inventors: Yingyang Li, Chengjun Sun
  • Patent number: 10848999
    Abstract: The present invention discloses a method and an apparatus for reporting channel state information (CSI). In the method, a UE receives information of a CSI report, analyzes the information of the CSI report, determines a frequency band of the CSI report, a report type of the CSI report, a report mode of the CSI report, a CSI process of the CSI report, a combination of at least one in a CSI subframe set and/or cells, and a report way of the CSI report. According to the method, it is ensured that in a condition that a part of uplink subframes are occupied, transmission of the CSI report of the UE is not impacted.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: November 24, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yunchuan Yang, Yingyang Li, Shichang Zhang, Chengjun Sun, Jingxing Fu
  • Patent number: 10849122
    Abstract: The present disclosure discloses cache-based data transmission methods and apparatuses. The method is implemented as follows. An apparatus where a caching node is located reports a caching capability to a network side, and the caching node is configured to cache data. The network side sends a cache indicating parameter to the apparatus where the caching node is located, and maintains a data list. Wherein, the cache indicating parameter is configured to control the caching node to cache the data which has the property of high repetition probability and/or high cache utilization, and the data list is a list of the data cached in the caching node. When the caching node has cached data requested by a UE, the UE obtains the requested data from the caching node.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: November 24, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong Wang, Lixiang Xu, Chengjun Sun, Bin Yu
  • Publication number: 20200359342
    Abstract: The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Shichang ZHANG, Bin YU, Chengjun SUN
  • Publication number: 20200359237
    Abstract: An apparatus and a method for feeding back data receiving status, applied to a system, are provided. The method includes sequencing, by a User Equipment (UE), downlink subframes for transmitting data with respect to each Component Carrier (CC), generating receiving status feedback information for the first X downlink subframes with respect to each CC according to the result of the sequencing, where X?M, wherein M is the number of downlink subframes on each CC, and transmitting the receiving status feedback information generated with respect to each CC to a base station. Accordingly, the UE will not misinterpret the receiving status for the downlink subframes due to inconsistencies with the base station between transmitting and receiving feedback. This affects the Hybrid Automatic Repeat Request (HARQ) transmission, saves the uplink overheads occupied by the receiving status feedback information, and increases the uplink coverage area.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Yingyang LI, Chengjun SUN, Xiaoqiang LI
  • Publication number: 20200359406
    Abstract: The present disclosure is to provide a method of configuring timing of uplink (UL) transmission, comprising, receiving, by a user equipment (UE), configuration information on carrier aggregation (CA) of at least one frequency division duplex (FDD) cell and at least one time division duplex (TDD) cell; and adjusting, by the UE, starting timing of a UL subframe in a cell participating in the CA.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Yingyang LI, Chengjun SUN
  • Patent number: 10805947
    Abstract: The present invention provides a method for uplink packet scheduling, comprising the following steps: a base station determines types of terminals, and groups the terminals based on types thereof; the base station transmits pre-scheduling indication information and uplink scheduling commands to the terminals in a group with a same type; the base station receives Physical Uplink Shared Channel (PUSCH) transmitted by the terminals on a corresponding uplink sub-frame. The present invention further provides a base station and a terminal. In the above solution provided by this invention, eNB sorts accessed MTC terminals into different types of groups based on types thereof via a high-layer signaling, part of the MTC terminals in a type group are sorted into a scheduling group via a pre-scheduling instruction carried by PDSCH, all the MTC terminals in that group are scheduled via an uplink scheduling command.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: October 13, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Shichang Zhang, Yingyang Li, Chengjun Sun
  • Publication number: 20200296666
    Abstract: A method and an apparatus for measuring an inter-frequency neighboring cell is provided. The method comprises obtaining a time requirement of cell identification of a specific carrier, obtaining a time requirement of cell measurement of the specific carrier, identifying a new cell on the corresponding specific carrier in the time requirement of the cell identification of the specific carrier, measuring Reference Signal Receiving Power (RSRP) and/or Reference Signal Receiving Quality (RSRQ) of an identified cell in the time requirement of the cell measurement of the specific carrier, and reporting a measurement result of the identified cell according to a configured measurement event, wherein the specific carrier is different from other carriers, and the time requirement of the cell identification of the specific carrier is different from time requirements of the cell identification of other carriers.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 17, 2020
    Inventors: Xutao ZHOU, Chengjun SUN, Gert-Jan VAN LIESHOUT
  • Patent number: 10779293
    Abstract: Disclosed is a method for communication by a user equipment in a wireless communication system, including receiving configuration information from a base station, performing measurement of a downlink channel based on the configuration information, identifying a channel quality indicator (CQI) table among a plurality of CQI tables including a first CQI table which includes CQI indices related to a 256 quadrature amplitude modulation (QAM) scheme and a second CQI table which does not include a CQI index related to the 256 QAM scheme, identifying the CQI index in the identified CQI table based on the measurement, and reporting the identified CQI index to the base station, wherein each of the plurality of CQI tables includes CQI indices indicating modulation schemes and code rates, and wherein a 64 QAM scheme with a highest coding rate indicated in the second CQI table is absent in the first CQI table.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: September 15, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yingyang Li, Chengjun Sun
  • Publication number: 20200280982
    Abstract: Embodiments of the present invention disclose an ACK/NACK feedback method in a wireless communication system, including: determining, by a UE, number of public sub-frames, all of which are uplink sub-frame in PCC and any SCC sub-frames of any radio frame in frame structure configurations according to the frame structure configurations of the PCC and any SCC; selecting, by the UE, a configuration, uplink sub-frames of which merely include sub-frames corresponding to the determined number of public sub-frames from existing seven kinds of frame structure configurations; and feeding back, by the UE, to a eNB ACK/NACK information corresponding to PDSCH in the SCC on the PCC adopting a timing relationship between the PDSCH and the ACK/NACK corresponding to the selected configuration.
    Type: Application
    Filed: May 19, 2020
    Publication date: September 3, 2020
    Inventors: Hong HE, Yingyang LI, Chengjun SUN
  • Patent number: 10728863
    Abstract: The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: July 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Shichang Zhang, Bin Yu, Chengjun Sun
  • Patent number: 10728864
    Abstract: The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: July 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Shichang Zhang, Bin Yu, Chengjun Sun
  • Patent number: 10728923
    Abstract: The present disclosure is to provide a method of configuring timing of uplink (UL) transmission, comprising, receiving, by a user equipment (UE), configuration information on carrier aggregation (CA) of at least one frequency division duplex (FDD) cell and at least one time division duplex (TDD) cell; and adjusting, by the UE, starting timing of a UL subframe in a cell participating in the CA.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: July 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yingyang Li, Chengjun Sun
  • Patent number: 10728774
    Abstract: An apparatus and a method for feeding back data receiving status, applied to a system, are provided. The method includes sequencing, by a User Equipment (UE), downlink subframes for transmitting data with respect to each Component Carrier (CC), generating receiving status feedback information for the first X downlink subframes with respect to each CC according to the result of the sequencing, where X?M, wherein M is the number of downlink subframes on each CC, and transmitting the receiving status feedback information generated with respect to each CC to a base station. Accordingly, the UE will not misinterpret the receiving status for the downlink subframes due to inconsistencies with the base station between transmitting and receiving feedback. This affects the Hybrid Automatic Repeat Request (HARQ) transmission, saves the uplink overheads occupied by the receiving status feedback information, and increases the uplink coverage area.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: July 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yingyang Li, Chengjun Sun, Xiaoqiang Li
  • Patent number: 10716108
    Abstract: The present application discloses a cellular network access method and apparatus. An embodiment of the cellular network access method for a base station comprises: receiving, from a pair of D2D devices, a result of a spectrum detection which indicates a load level of a detected spectrum; selecting a cellular communication mode or a D2D communication mode based on the received result of the spectrum detection; and notifying the pair of D2D devices of the selected mode. Through dynamic switching between the cellular communication mode and the D2D communication mode, it is possible to make full use of the available spectrum, thereby increasing the throughput of the system.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: July 14, 2020
    Assignees: Samsung Electronics Co., Ltd., Tsinghua University
    Inventors: Feifei Gao, Jingxing Fu, Yingyang Li, Chengjun Sun
  • Patent number: 10674444
    Abstract: A method and an apparatus for measuring an inter-frequency neighboring cell is provided. The method comprises obtaining a time requirement of cell identification of a specific carrier, obtaining a time requirement of cell measurement of the specific carrier, identifying a new cell on the corresponding specific carrier in the time requirement of the cell identification of the specific carrier, measuring Reference Signal Receiving Power (RSRP) and/or Reference Signal Receiving Quality (RSRQ) of an identified cell in the time requirement of the cell measurement of the specific carrier, and reporting a measurement result of the identified cell according to a configured measurement event, wherein the specific carrier is different from other carriers, and the time requirement of the cell identification of the specific carrier is different from time requirements of the cell identification of other carriers.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: June 2, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Xutao Zhou, Chengjun Sun, Gert-Jan Van Lieshout
  • Patent number: 10660088
    Abstract: Embodiments of the present invention disclose an ACK/NACK feedback method in a wireless communication system, including: determining, by a UE, number of public sub-frames, all of which are uplink sub-frame in PCC and any SCC sub-frames of any radio frame in frame structure configurations according to the frame structure configurations of the PCC and any SCC; selecting, by the UE, a configuration, uplink sub-frames of which merely include sub-frames corresponding to the determined number of public sub-frames from existing seven kinds of frame structure configurations; and feeding back, by the UE, to a eNB ACK/NACK information corresponding to PDSCH in the SCC on the PCC adopting a timing relationship between the PDSCH and the ACK/NACK corresponding to the selected configuration.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: May 19, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong He, Yingyang Li, Chengjun Sun
  • Publication number: 20200153684
    Abstract: Embodiments of the present disclosure provide a method and an apparatus for configuring uplink and downlink carriers. In the embodiments of the present disclosure, the UE determines according to received uplink and downlink carrier configuration signaling, the pairing between the uplink and downlink carriers, and/or a timing reference downlink carrier for the uplink, and/or a pathloss reference cell for the uplink. Thus, the uplink and downlink carriers may be configured more flexibly. Further, through the configuration of the reference downlink carrier for the uplink timing and the uplink power control, the carrier aggregation performance and that on the unlicensed band may be supported more effectively, so as to improve the performance of the LTE system.
    Type: Application
    Filed: January 14, 2020
    Publication date: May 14, 2020
    Inventors: Yi WANG, Yingyang LI, Chengjun SUN