Patent ID: 8824267

Claim:
In a mobile terminal having a first antenna and a second antenna, a transmit diversity method for discrete Fourier transform (DFT) precoded channels, the method comprising: producing a block of data symbols; transforming said block of data symbols to produce a first block of transformed symbols and a second block of transformed symbols; using the first antenna, transmitting the first block of transformed symbols and a first reference sequence, wherein the transmitting step occurs during a slot of a subframe of a radio frame; and using the second antenna, transmitting, during said slot, the second block of transformed symbols and a second reference sequence, wherein the first block of transformed symbols is transmitted using only a first set of subcarriers, the second block of transformed symbols is transmitted using only a second set of subcarriers that is orthogonal to the first set of subcarriers, and the first reference sequence and the second reference sequence are transmitted using a third set of subcarriers that comprises that first set of subcarriers and the second set of subcarriers.