| 摘要 |
For data transmission with spatial spreading, a transmitting entity (1) encodes and modulates each data packet to obtain a corresponding data symbol block, (2) multiplexes data symbol blocks onto N<SUB>S </SUB>data symbol streams for transmission on N<SUB>S </SUB>transmission channels of a MIMO channel, (3) spatially spreads the N<SUB>S </SUB>data symbol streams with steering matrices, and (4) spatially processes N<SUB>S </SUB>spread symbol streams for full-CSI transmission on N<SUB>S </SUB>eigenmodes or partial-CSI transmission on N<SUB>S </SUB>spatial channels of the MIMO channel. A receiving entity (1) obtains N<SUB>R </SUB>received symbol streams via N<SUB>R </SUB>receive antennas, (2) performs receiver spatial processing for full-CSI or partial-CSI transmission to obtain N<SUB>S </SUB>detected symbol streams, (3) spatially despreads the N<SUB>S </SUB>detected symbol streams with the same steering matrices used by the transmitting entity to obtain N<SUB>S </SUB>recovered symbol streams, and (4) demodulates and decodes each recovered symbol block to obtain a corresponding decoded data packet. |
