| 摘要 |
PURPOSE: A method for repeatedly canceling interference signals by multi-user connections in a CDMA(Code Division Multiple Access) system is provided to prevent a capacity deterioration of an entire system, and to minimize a resort trouble. CONSTITUTION: One base station divides every user within one cell into groups of an N number according to a signal power order. The base station sorts the users of each group composed of an h person according to a descending order of the signal power. For user signals of the h person in the first group, the base station sequentially cancels interference signals by increasing an IRU(Interference Replica Unit) in parallel, in order that the user signals are applied. The base station repeatedly cancels the interference signals in parallel as much as a user number of each remaining group. The base station cancels the interference signals from entire input signal at the same point for the every user signal, and detects each user signal. |
