Patents by Inventor Di CHE

Di CHE 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: 20240283689
    Abstract: A method and apparatus for processing of signals in a point-to-multipoint (P2MP) network are provided. The processing includes obtaining link conditions, in a spectrum comprising multiple OFDM subcarriers, of a plurality of users at respective user nodes that are in communication with a central node of the network. The processing further includes inputting the link conditions to an entropy loading (EL) algorithm, thereby to determine a modulation format for each of the OFDM subcarriers; optimizing an allocation of OFDM subcarriers to users according to an OFDMA scheme; and for each user, loading data from a bitstream onto the allocated OFDM subcarriers in the respective determined modulation formats.
    Type: Application
    Filed: April 11, 2023
    Publication date: August 22, 2024
    Applicant: Nokia Solutions and Networks Oy
    Inventor: Di Che
  • Patent number: 11677476
    Abstract: A radio apparatus and system may include a means for modulating and/or demodulating an optical signal for respective transmission and/or reception of the optical signal using an optical channel connected to a remote radio unit. There may also be provided a means for performing, based on one or more pre-trained computational models, one or more operations on a digital signal corresponding to the optical signal for mitigating one or more non-linearities introduced by the optical modulating and/or demodulating means and the optical channel. The one or more pre-trained computational models may be pre-trained based on feedback data indicative of said one or more non-linearities.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: June 13, 2023
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Jinfeng Du, Qi Zhou, Di Che
  • Publication number: 20220239380
    Abstract: A radio apparatus and system may include a means for modulating and/or demodulating an optical signal for respective transmission and/or reception of the optical signal using an optical channel connected to a remote radio unit. There may also be provided a means for performing, based on one or more pre-trained computational models, one or more operations on a digital signal corresponding to the optical signal for mitigating one or more non-linearities introduced by the optical modulating and/or demodulating means and the optical channel. The one or more pre-trained computational models may be pre-trained based on feedback data indicative of said one or more non-linearities.
    Type: Application
    Filed: January 26, 2022
    Publication date: July 28, 2022
    Inventors: Jinfeng DU, Qi ZHOU, Di CHE