Patents by Inventor Umut Demirhan

Umut Demirhan 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: 20240048203
    Abstract: Methods and apparatuses for mobility classification and channel state information (CSI) prediction. A method for operating a base station includes receiving, from a user equipment (UE), a channel status state information (CSI) report comprising a precoding matrix indicator (PMI), a channel quality information (CQI), and a rank indicator (RI). The method further includes identifying a CSI configuration of the UE and performing a metric smoothing operation on the PMI. The metric smoothing operation results in a smoothed PMI. The metric smoothing operation comprises a scaling function based on the RI and a discrete Fourier transform (DFT) vector length. The method further includes determining a mobility range classification of the UE based on the smoothed PMI, other metrics in the CSI feedback report, and the CSI configuration.
    Type: Application
    Filed: July 6, 2023
    Publication date: February 8, 2024
    Inventors: Tiexing Wang, Umut Demirhan, Yang Li
  • Publication number: 20230299817
    Abstract: A communications network system is disclosed. The system may include a central processing unit (CPU) in data communication with a first access point (AP) configured to enable a data communication between the CPU and a first user equipment (UE). The CPU may include a processor configured to select a first group of APs including the first AP, establish a first data communications link over a first frequency band between the CPU- and the first AP, cause the first AP to establish a second data communications link over a second frequency band between the first AP and the first UE, and transmit a portion of data to the first AP over the first data communications link. The first data communications link may be a wireless data communications link. The first frequency band may include higher frequency levels than those of the second frequency band.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventors: Ahmed Alkhateeb, Umut Demirhan
  • Patent number: 11742902
    Abstract: A communications network system is disclosed. The system may include a central processing unit (CPU) in data communication with a first access point (AP) configured to enable a data communication between the CPU and a first user equipment (UE). The CPU may include a processor configured to select a first group of APs including the first AP, establish a first data communications link over a first frequency band between the CPU and the first AP, cause the first AP to establish a second data communications link over a second frequency band between the first AP and the first UE, and transmit a portion of data to the first AP over the first data communications link. The first data communications link may be a wireless data communications link. The first frequency band may include higher frequency levels than those of the second frequency band.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: August 29, 2023
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventors: Ahmed Alkhateeb, Umut Demirhan
  • Publication number: 20230198605
    Abstract: Relay-aided intelligent reconfigurable surfaces (IRSs) are provided. A novel relay-aided intelligent surface architecture is described herein that has the potential of achieving the promising gains of IRSs with a much smaller number of elements, opening the door for realizing these surfaces in practice. A half-duplex or full-duplex relay is connected to one or more IRSs. This merges the gains of relays and reconfigurable surfaces and splits the required signal-to-noise ratio (SNR) gain between them. This architecture can hen significantly reduce the required number of reconfigurable elements in the IRS(s) while achieving the same spectral efficiencies. Consequently, the proposed relay-aided intelligent surface architecture needs far less channel estimation/beam training overhead and provides enhanced robustness compared to traditional IRS solutions.
    Type: Application
    Filed: June 11, 2021
    Publication date: June 22, 2023
    Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventors: Ahmed ALKHATEEB, Umut DEMIRHAN, Xiaoyan YING
  • Publication number: 20220190890
    Abstract: A communications network system is disclosed. The system may include a central processing unit (CPU) in data communication with a first access point (AP) configured to enable a data communication between the CPU and a first user equipment (UE). The CPU may include a processor configured to select a first group of APs including the first AP, establish a first data communications link over a first frequency band between the CPU and the first AP, cause the first AP to establish a second data communications link over a second frequency band between the first AP and the first UE, and transmit a portion of data to the first AP over the first data communications link. The first data communications link may be a wireless data communications link. The first frequency band may include higher frequency levels than those of the second frequency band.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 16, 2022
    Inventors: Ahmed Alkhateeb, Umut Demirhan