Patent ID: 8649451
Filing Date: 2014-02-11
Classification: H04B,H04J,H04L

Abstract:
1. A method for providing wireless transmissions from a user device over a plurality of sub-carriers, comprising: utilizing, at the user device, one non-overlapping group of the sub-carriers over which the user device is to transmit; utilizing, at the user device, a user device specific set of orthogonal codes; spreading symbols using the user device specific set of orthogonal codes to form user device orthogonally spread symbols; and providing the user device orthogonally spread symbols from the user device by frequency hopping over time within the one non-overlapping group of the sub-carriers over which the user device transmits, wherein the user device is one of multiple user devices sharing a single time-frequency allocation of the one non-overlapping group of the sub-carriers, and wherein the multiple user devices are each configured to transmit respective user device orthogonally spread symbols within the single time-frequency allocation of the one non-overlapping group of the sub-carriers.