Patents by Inventor Xianguo CHEN

Xianguo CHEN 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: 11503485
    Abstract: Disclosed in the present application are a method, system and device for circumventing far-end interference, which are used to better circumvent far-end interference by means of flexibly adjusting a GP length.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: November 15, 2022
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventor: Xianguo Chen
  • Patent number: 11411703
    Abstract: Disclosed are a method and a device for transmitting and detecting a signal. The method provided in the present application: includes determining time-frequency resource for sending a dedicated reference signal sequence; sending the dedicated reference signal sequence on the time-frequency resources; and identifying remote interference by detecting the dedicated reference signal sequence. The time-frequency resources include a time slot of a downlink radio frame in a time domain and a frequency sub-band obtained by dividing a maximum frequency bandwidth available to a base station in a frequency domain.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: August 9, 2022
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventor: Xianguo Chen
  • Publication number: 20220085941
    Abstract: Disclosed are a signal transmission and detection method and device, used for solving the problems in the prior art that the complexity of a far-end interference detection algorithm is high and the detection is not real-time while center frequency points and bandwidths of an interfered station and an interfering station are required to be completely identical are solved. The signal transmission method provided in the present application comprises: determining the presence of far-end interference; and sending a dedicated reference signal sequence in a special time slot.
    Type: Application
    Filed: January 14, 2020
    Publication date: March 17, 2022
    Inventor: Xianguo CHEN
  • Publication number: 20220046440
    Abstract: Disclosed in the present application are a method, system and device for circumventing far-end interference, which are used to better circumvent far-end interference by means of flexibly adjusting a GP length.
    Type: Application
    Filed: August 19, 2019
    Publication date: February 10, 2022
    Inventor: Xianguo CHEN
  • Patent number: 10880766
    Abstract: Embodiments of the present disclosure provide a method and an apparatus for detecting a characteristic sequence in a wireless communication system. The method includes: receiving, by a receiving end base station, an original characteristic sequence periodically transmitted by a transmitting end base station; detecting out, by the receiving end base station, a candidate characteristic sequence meeting a preset condition from the original characteristic sequence; determining whether the candidate characteristic sequence is a valid characteristic sequence; and detecting whether there is an associated event based on a preset rule according to the detected valid characteristic sequence. In this way, it is solved the problem that it cannot be guaranteed that the number of characteristic sequences falsely detected is reduced without increasing the missed-detection probability in a scenario of larger number of detections in the prior art.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: December 29, 2020
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventor: Xianguo Chen
  • Publication number: 20190335514
    Abstract: Embodiments of the present disclosure provide a method and an apparatus for detecting a characteristic sequence in a wireless communication system. The method includes: receiving, by a receiving end base station, an original characteristic sequence periodically transmitted by a transmitting end base station; detecting out, by the receiving end base station, a candidate characteristic sequence meeting a preset condition from the original characteristic sequence; determining whether the candidate characteristic sequence is a valid characteristic sequence; and detecting whether there is an associated event based on a preset rule according to the detected valid characteristic sequence. In this way, it is solved the problem that it cannot be guaranteed that the number of characteristic sequences falsely detected is reduced without increasing the missed-detection probability in a scenario of larger number of detections in the prior art.
    Type: Application
    Filed: December 13, 2017
    Publication date: October 31, 2019
    Inventor: Xianguo CHEN
  • Patent number: 10439680
    Abstract: A coordinated beamforming method and device. The method includes: upon receipt of coordination request from multiple coordinated multi-point user equipments (CoMP UE), determining a target CoMP UE from multiple CoMP UEs; calculating a channel correlation value between the target CoMP UE and each candidate coordinated UE in a coordinated cell; determining, on basis of channel correlation value between the target CoMP UE and each candidate coordinated UE, a target coordinated UE; if the channel correlation value between target coordinated UE and the target CoMP UE is lower than a preset lower channel correlation threshold, then not performing beamforming orthogonalization adjustment on the target coordinated UE; and if the channel correlation value between target coordinated UE and target CoMP UE is greater than or equal to the preset lower channel correlation threshold, then performing beamforming orthogonalization adjustment on target coordinated UE.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: October 8, 2019
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO. LTD.
    Inventors: Xianguo Chen, Yiming Jiang
  • Patent number: 10382175
    Abstract: An adaptive downlink Coordinated Multi-Points (CoMP) transmission method and device are provided. The method includes: determining each coordinating cell corresponding to the serving cell of the downlink CoMP User Equipment (UE); counting the cell load value of each coordinating cell; on the basis of the cell load value of each coordinating cell, determining the transmission manner adopted by each coordinating cell for the downlink CoMP UE, and counting the number of coordinating cells corresponding to each transmission manner; and on the basis of the number of coordinating cells corresponding to each transmission manner, determining the transmission manner of the downlink CoMP UE.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: August 13, 2019
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
    Inventors: Xianguo Chen, Yiming Jiang
  • Patent number: 10251190
    Abstract: Provided are an uplink frequency selection scheduling method and device. The method includes: receiving, by a base station, a sounding reference signal (SRS) sent by a user equipment (UE); determining an interference intensity of a PRB; determining a scheduling priority of the PRB according to the channel quality of the SRS and the interference intensity of the PRB; and conducting uplink frequency selection scheduling according to the scheduling priority. The embodiments of the present invention can improve the uplink performance of a TD-LTE system.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: April 2, 2019
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventors: Xianguo Chen, Wei Lin, Shuxia Dong
  • Patent number: 10149253
    Abstract: A blocking interference suppression method and device, the method including: a baseband processing unit (BBU) detects blocking interference; the BBU transmits a first instruction message to a radio remote unit (RRU), the first instruction message being used to instruct the RRU to reduce the receiving link gain of the RRU. The embodiment of the present invention improves the uplink receiving performance of a TD-LTE system.
    Type: Grant
    Filed: May 25, 2015
    Date of Patent: December 4, 2018
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventors: Xianguo Chen, Wei Lin, Shuxia Dong
  • Publication number: 20180262237
    Abstract: A coordinated beamforming method and device. The method includes: upon receipt of coordination request from multiple coordinated multi-point user equipments (CoMP UE), determining a target CoMP UE from multiple CoMP UEs; calculating a channel correlation value between the target CoMP UE and each candidate coordinated UE in a coordinated cell; determining, on basis of channel correlation value between the target CoMP UE and each candidate coordinated UE, a target coordinated UE; if the channel correlation value between target coordinated UE and the target CoMP UE is lower than a preset lower channel correlation threshold, then not performing beamforming orthogonalization adjustment on the target coordinated UE; and if the channel correlation value between target coordinated UE and target CoMP UE is greater than or equal to the preset lower channel correlation threshold, then performing beamforming orthogonalization adjustment on target coordinated UE.
    Type: Application
    Filed: January 25, 2016
    Publication date: September 13, 2018
    Inventors: Xianguo Chen, Yiming Jiang
  • Publication number: 20180139017
    Abstract: Disclosed in the present invention are an adaptive downlink Coordinated Multi-Points (CoMP) transmission method and device for solving the problem in prior art that the downlink CoMP technology cannot be adapted dynamically to network environment.
    Type: Application
    Filed: January 21, 2016
    Publication date: May 17, 2018
    Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
    Inventors: Xianguo CHEN, Yiming JIANG
  • Publication number: 20170086146
    Abstract: A blocking interference suppression method and device, the method including: a baseband processing unit (BBU) detects blocking interference; the BBU transmits a first instruction message to a radio remote unit (RRU), the first instruction message being used to instruct the RRU to reduce the receiving link gain of the RRU. The embodiment of the present invention improves the uplink receiving performance of a TD-LTE system.
    Type: Application
    Filed: May 25, 2015
    Publication date: March 23, 2017
    Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventors: Xianguo CHEN, Wei LIN, Shuxia DONG
  • Publication number: 20170079057
    Abstract: Provided are an uplink frequency selection scheduling method and device. The method includes: receiving, by a base station, a sounding reference signal (SRS) sent by a user equipment (UE); determining an interference intensity of a PRB; determining a scheduling priority of the PRB according to the channel quality of the SRS and the interference intensity of the PRB; and conducting uplink frequency selection scheduling according to the scheduling priority. The embodiments of the present invention can improve the uplink performance of a TD-LTE system.
    Type: Application
    Filed: May 12, 2015
    Publication date: March 16, 2017
    Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventors: Xianguo CHEN, Wei LIN, Shuxia DONG