| 摘要 |
<p>A pre-filtering SDMA transmitting and receiving method and system, and a filter thereof and its generating method, the SDMA transmitting system calculates the complete diagonalization pre-filter matrix composed of U sub-blocks satisfying block diagonalization condition and complete diagonalization condition; at the same time, after the data stream which the said transmitting system sends to the users passes the pre-filter, it is transmitted through numbers of antennas synchronously, and reaches each user terminal via air channel; after the terminal receives the transmitting signal, judges the received signal directly, and recovers the data stream sent to itself, at the same time, feeds the measured channel characteristic back to the said transmitting system ,the channel is the sub-channel from the said transmitting system to the terminal. In addition to eliminate the multi-user interference, the present invention can also eliminate the interference between various data streams of the user, then simplifies the design of the receiver.</p> |
