Patents by Inventor Abrar Shakil Sejan MOHAMMAD

Abrar Shakil Sejan MOHAMMAD 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).

  • Channel state information feedback method in reconfigurable intelligent surface-based massive MIMO system
    Patent number: 11901975
    Abstract: The present disclosure relates to a method for feeding back reliable downlink channel state information from a receiver to a transmitter in a multi-user massive MIMO system based on a reconfigurable intelligent surface, and more particularly, to a method for the receiver to transform acquired downlink channel state information into downlink channel state information in an angle domain and compress the downlink channel state information through a compressed-sensing scheme, and then feed the compressed result back to the transmitter, and for the transmitter to acquire the reliable downlink channel state information through a recovery algorithm. According to the present disclosure, the downlink channel state information is compressed according to a compression and recovery algorithm in an mmWave environment, and only a codeword index suitable for the compressed result is fed back to the transmitter to obtain the effect of reduction in feedback overhead in the entire communication system.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: February 13, 2024
    Inventors: Hyoung Kyu Song, Young Hwan You, Beom Sik Shin, Ji Hye Oh, Min A Kim, Thanh Binh Nguyen, Abrar Shakil Sejan Mohammad
  • CHANNEL STATE INFORMATION FEEDBACK METHOD IN RECONFIGURABLE INTELLIGENT SURFACE-BASED MASSIVE MIMO SYSTEM
    Publication number: 20230421211
    Abstract: The present disclosure relates to a method for feeding back reliable downlink channel state information from a receiver to a transmitter in a multi-user massive MIMO system based on a reconfigurable intelligent surface, and more particularly, to a method for the receiver to transform acquired downlink channel state information into downlink channel state information in an angle domain and compress the downlink channel state information through a compressed-sensing scheme, and then feed the compressed result back to the transmitter, and for the transmitter to acquire the reliable downlink channel state information through a recovery algorithm. According to the present disclosure, the downlink channel state information is compressed according to a compression and recovery algorithm in an mmWave environment, and only a codeword index suitable for the compressed result is fed back to the transmitter to obtain the effect of reduction in feedback overhead in the entire communication system.
    Type: Application
    Filed: August 16, 2022
    Publication date: December 28, 2023
    Inventors: Hyoung Kyu SONG, Young Hwan YOU, Beom Sik SHIN, Ji Hye OH, Min A KIM, Thanh Binh NGUYEN, Abrar Shakil Sejan MOHAMMAD