Patents by Inventor Elena Serna Santiago

Elena Serna Santiago 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: 11128352
    Abstract: Method and system to dynamically associate spatial layers to beams in a FWA network operating in the millimeter-wave frequency range. A base station and a CPE are willing to wirelessly transmit and receive data through a wireless channel of the FWA network, the base station having beamforming capabilities henceforth generating multiple wireless beams. The base station performs all baseband wireless functions related for creating, keeping and managing the connections between the base station and the CPE at baseband level, wherein information is handled in the form of up to M spatial layer signals, and with no built-in capabilities for creation, detection or management of the beams. The base station also performs all necessary RF functions at millimeter-wave frequencies, including beamforming and conversion from complex baseband signals to RF signals and vice versa, and also couples the RF signals to the wireless channel.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: September 21, 2021
    Assignee: Telefonica, S.A.
    Inventors: Javier Lorca Hernando, Elena Serna Santiago
  • Patent number: 11038562
    Abstract: A method and transmitter for generating broadcast beam patterns in massive MIMO systems, the transmitter comprising a rectangular antenna array with a number N1 of antenna elements in the horizontal direction and a number N2 of antenna elements in the vertical direction. The MIMO transmitter generates broadcast beam patterns with determined beam widths in horizontal and vertical dimensions to cover a sector area of a cell by the rectangular antenna array radiating N1×N2 radiofrequency signals at a carrier frequency, the sector area being where a user equipment requests from the MIMO transmitter access to the cell. The beam widths in horizontal and vertical directions are determined by using an optimum set of complex excitation coefficients calculated from a discretized continuous-space array factor ?(?,?), which is based on a discretization over the elevation angle ? and the azimuth angle ? of the antenna elements.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: June 15, 2021
    Assignee: TELEFÓNICA, S.A.
    Inventors: Javier Lorca Hernando, Elena Serna Santiago, Monica Marti Molina
  • Publication number: 20210099204
    Abstract: A method and transmitter for generating broadcast beam patterns in massive MIMO systems, the transmitter comprising a rectangular antenna array with a number N1 of antenna elements in the horizontal direction and a number N2 of antenna elements in the vertical direction. The MIMO transmitter generates broadcast beam patterns with determined beam widths in horizontal and vertical dimensions to cover a sector area of a cell by the rectangular antenna array radiating N1×N2 radiofrequency signals at a carrier frequency, the sector area being where a user equipment requests from the MIMO transmitter access to the cell. The beam widths in horizontal and vertical directions are determined by using an optimum set of complex excitation coefficients calculated from a discretized continuous-space array factor ?(?, ?), which is based on a discretization over the elevation angle ? and the azimuth angle ? of the antenna elements.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 1, 2021
    Inventors: Javier LORCA HERNANDO, Elena SERNA SANTIAGO, Monica MARTI MOLINA
  • Publication number: 20200119776
    Abstract: Method and system to dynamically associate spatial layers to beams in a FWA network operating in the millimeter-wave frequency range. A base station (101) and a CPE (102) are willing to wirelessly transmit and receive data through a wireless channel of said FWA network, said base station (101) having beamforming capabilities henceforth generating multiple wireless beams (103). The base station (101) performs all baseband wireless functions related for creating, keeping and managing the connections between the base station (101) and the CPE (102) at baseband level, wherein information is handled in the form of up to M spatial layer signals, and with no built-in capabilities for creation, detection or management of the beams (103). The base station (101) also performs all necessary RF functions at millimeter-wave frequencies, including beamforming and conversion from complex baseband signals to RF signals and vice versa, and also couples the RF signals to said wireless channel.
    Type: Application
    Filed: October 9, 2019
    Publication date: April 16, 2020
    Applicant: Telefonica, S.A.
    Inventors: Javier LORCA HERNANDO, Elena Serna Santiago