| 摘要 |
PROBLEM TO BE SOLVED: To adjust a balance between gains from diversity and gains from spatial multiplexing, without necessarily making major changes to the transmit and receive processing.SOLUTION: Data is split into sub-streams. To match to channel conditions by a higher order modulation method or the like in accordance with fed-back quality information, in each sub-stream, a not scrambled first stream is fed through a forward error correction (FEC) stage 20, an interleaver 30, and a modulation stage 40. A second of the sub-streams is fed through a first scrambler 150, a FEC stage and other coding 21, an interleaving stage 31, and a modulation stage 41. A third of the sub-streams is fed through a second scrambler 155, a FEC stage 22, an interleaving stage 32, and a modulation stage 42. Each sub-stream is transmitted by a corresponding antenna 50, 51, 52. |
