A communication system comprising a communication terminal using a non-orthogonal or hybrid orthogonal/non-orthogonal uplink waveform.

摘要

A communication system comprising a base station 1 and a plurality of terminals is capable of operating with a non-orthogonal uplink waveform; or a hybrid uplink waveform, comprising a non-orthogonal waveform [i.e. high speed uplink packet access (HSUPA)] with a more orthogonal waveform [i.e. single carrier frequency division multiple access (SC-FDMA)]. The invention may be applied to any combination of orthogonal with non-orthogonal waveforms, e.g. orthogonal CDMA with non-orthogonal CDMA or synchronous E-DCH with non-orthogonal CDMA. The base station further comprises a scheduler, wherein the scheduler set separate rise over thermal target levels for the non-orthogonal and hybrid waveforms. Non-orthogonal RoT typically 3 - 6 dB, orthogonal RoT typically 10-20 dB.