| 摘要 |
A method and system for canceling interference in a code division multiple access (CDMA) network. In one embodiment of the invention, a transmitted signal is spread using a specific spreading sequence. The signal includes a plurality of symbols having a specific spreading factor that differs from the length of the spreading sequence. The transmitted signal is received and filtered using a plurality of despreading sequences to recover the transmitted signal, wherein each despreading sequence corresponds to a particular part of the spreading sequence and is used to despread a portion of the received signal that was spread using the corresponding part of the spreading sequence. In addition, each despreading sequence is adapted to cancel interference caused by other signals, wherein such interference is associated with the part of the spreading sequence that corresponds to the despreading sequence. In another embodiment of the invention, a despreading sequence used to decode a received CDMA transmission is adapted to cancel interference, and the adapted despreading sequence is normalized to generate a despreading sequence for use in subsequent filtering. |
