| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for performing codeword level scrambling for a MIMO transmission.SOLUTION: A transmitter station may perform channel encoding for multiple data streams being sent simultaneously for a MIMO transmission. The transmitter station may perform scrambling for the multiple data streams with different scrambling codes after the channel encoding. The transmitter station may also perform channel interleaving, symbol mapping, and spatial processing for the multiple data streams after the channel encoding. A receiver station may receive the MIMO transmission, perform descrambling for the multiple data streams with the different scrambling codes, and then perform channel decoding for them. The scrambling improves performance by isolating each data stream through performing the complementary descrambling and by obtaining randomized interference from the remaining data streams. |
