Patents Examined by Daniel S Huang
  • Patent number: 10181880
    Abstract: Apparatuses, methods, and systems zone precoding are disclosed. One method includes training a transmission channel between a base station and each of a plurality of users and determining a precoding of transmission signals to each of the plurality of users from the base station. The training includes determining a transmission zone for each of the plurality of users, wherein the transmission zone includes an angle of direction of a directional beam to each user, and a deviation of the angle of direction. Determining a precoding of transmission signals to each of the plurality of users from the base station, includes determining an initial precoding for each of the users based on the transmission zone associated with the user, and constructing the precoding for each user by adjusting the initial precoding for each user based on the transmission zone determined for each of the other users.
    Type: Grant
    Filed: October 14, 2017
    Date of Patent: January 15, 2019
    Assignee: Facebook, Inc.
    Inventors: Ahmed Alkhateeb, Sam Padinjaremannil Alex, Ali Yazdan Panah, Qi Qu