| 摘要 |
<P>PROBLEM TO BE SOLVED: To propose transmission technologies which eliminates multi-user interference (MUI). <P>SOLUTION: The present invention relates to a method including spreading blocks of symbols in time or frequency by applying a user-specific spreading code, and applying a guard interval in the form of a cyclic prefix (CP) or zero padding (ZP) to separate different spread blocks, wherein the spreading code is selected from the group comprising orthogonal, mutually shift-orthogonal and self-shift orthogonal spreading codes. <P>COPYRIGHT: (C)2007,JPO&INPIT |
