Patent ID: 8599954
Filing Date: 2013-12-03
Classification: H04L

Abstract:
1. A method for receiving data, the method comprising: repeatedly receiving, from four transmission antennas, a code division multiplexed symbol a that is generated by multiplexing a plurality of information bits using one of (i) a first code division multiplexing scheme and (ii) a second code division multiplexing scheme combined with a real and imaginary multiplexing scheme, wherein the code division multiplexed symbol a comprises four vectors a=[a wherein a first transmit diversity scheme and a second transmit diversity scheme are alternatively applied to alternate repetitions of the code division multiplexed symbol a before transmission from the four transmission antennas, wherein, for the first transmit diversity scheme, a transmit signal is established by: and wherein, for the second transmit diversity scheme, a transmit signal is established by: where T ij represents the symbol transmitted on the i-th antenna and the j-th subcarrier, and i=1, 2, 3, 4, j=1, 2, 3, 4.