Patent ID: 7706454

Claim:
A wireless communication device comprising: a set of linear complex-field (LCF) encoders that encode a block of information bearing symbols to form a respective set of symbol layers; a space-time (ST) mapper to generate a ST coded signal by mapping the set of symbol layers in a row circular manner to form an array where the encoded information bearing symbols of each layer are orthogonal in space and time, wherein the ST mapper forms an array of symbols according to the following equation: C = [ u 1 ⁡ ( 1 ) ⋯ u 2 ⁡ ( N t ) u 1 ⁡ ( N t + 1 ) ⋯ u 2 ⁡ ( 2 ⁢ N t ) ⋯ u 2 ⁡ ( P ) u 2 ⁡ ( 1 ) ⋯ u 3 ⁡ ( N t ) u 2 ⁡ ( N t + 1 ) ⋯ u 3 ⁡ ( 2 ⁢ N t ) ⋯ u 3 ⁡ ( P ) ⋮ ⋯ ⋮ ⋮ ⋯ ⋮ u N t ⁡ ( 1 ) ⋯ u 1 ⁡ ( N t ) u N t ⁡ ( N t + 1 ) ⋯ u 1 ⁡ ( 2 ⁢ N t ) ⋯ u 1 ⁡ ( P ) ] , where C represents the array, wherein C includes (L+1) sub-arrays described by the following equation: C=[A( 0 ) A( 1 ) . . . A(L)], where (L+1) represents a number of channel taps of a wireless channel, and each sub-array, A(y), is described by the following equation: A ⁡ ( y ) = [ u 1 ⁡ ( y · N t + 1 ) u N t ⁡ ( y · N t + 2 ) … u 2 ⁡ ( y · N t + N t ) u 2 ⁡ ( y · N t + 1 ) u 1 ⁡ ( y · N t + 2 ) … u 3 ⁡ ( y · N t + N t ) ⋮ ⋮ … ⋮ u N t ⁡ ( y · N t + 1 ) u N t - 1 ⁡ ( y · N t + 2 ) … u 1 ⁡ ( y · N t + N t ) ] , where u g (n) represents a nth information bearing symbol of a gth layer, N t represents a number of transmit antennas, and P represents the number of transmit antennas multiplied with the number of channel taps of the wireless channel; and a modulator to produce a multi-carrier waveform in accordance with the ST coded signal for transmission through the wireless channel.