Patents Assigned to InterDigital Communications, LLC
  • Patent number: 7710909
    Abstract: A wireless communications system employs code-division multiple access information transmission techniques where the uplink and downlink transmission bandwidths are unequal. The higher bandwidth is an integer multiple of the lower bandwidth. The present system requires a base station and a subscriber unit to have two pseudo-random code generators which can be clocked separately. Alignment of the uplink and downlink pseudo-random spreading codes is achieved by truncating the code sequence for the lower speed link at the conclusion of a complete code sequence for the higher speed link.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: May 4, 2010
    Assignee: InterDigital Communications, LLC
    Inventor: Fatih M. Ozluturk