| 摘要 |
Processing of a received code division multiple access, CDMA, burst ( 405 ) when a spreading factor of the CDMA burst ( 405 ) has been changed from an allocated spreading factor (SF<SUB>0</SUB>) to a new spreading factor (SF<SUB>n</SUB>). The received burst ( 405 ) is processed with a CDMA detector ( 310 ), using the allocated spreading factor (SF<SUB>0</SUB>), to provide a CDMA detector output; the new spreading factor (SF<SUB>n</SUB>) of the burst is determined; and the CDMA detector output is decimated by a factor determined from the new spreading factor (SF<SUB>n</SUB>). The decimator may be a FIR decimator ( 315 ) and tap weights may be determined using the values of the new spreading factor (SF<SUB>n</SUB>) and the allocated spreading factor (SF<SUB>0</SUB>). Application in a Node B ( 150 A) of a UMTS system ( 100 ), particularly in UTRA TDD mode, for processing received uplink communication is described.
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