Patents Examined by Mohammed A Kamara
  • E-911 redirection system and method
    Patent number: 10779197
    Abstract: A method includes receiving a request to initiate an emergency call, directing, the mobile device to initiate the emergency call using a cellular network, receiving a network not available indication that the emergency call cannot be completed using the cellular network, selecting location information of the mobile device and requesting the emergency call be initiated by a VoIP client on the mobile device using the location information obtained from the selecting step.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: September 15, 2020
    Assignees: AT&T Intellectual Property I, L.P., Interwise, Ltd.
    Inventors: Barry J. Elia, Zahi Kapeluto
  • System and method for demodulation reference signal overhead reduction
    Patent number: 10419181
    Abstract: An embodiment method defines a demodulation reference signal (DMRS) pattern for transmitting DMRSs for rank 3 or rank 4 transmissions. The DMRS pattern specifies 12 REs in total per physical resource block (PRB) for carrying DMRSs on three or four antenna ports in antenna ports 7-14 for rank 3 or rank 4 transmissions. DMRS settings for transmitting DMRS according to the DMRS pattern may be specified using a downlink control information table.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: September 17, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Pengfei Xia, Bin Liu