| 摘要 |
A method and a device for reducing a bit error rate in a Code Division Multiple Access (CDMA) communication system are described, wherein this method includes: a sample sequence I in of an in-phase component signal I, and a sample sequence Q in of a quadrature component signal Q are obtained, and the signals are sent by a signal sending end; the obtained sample sequence I in and the sample sequence Q in are divided into different groups according to a sample number Ns of a chip, a sum-average operation is performed on a signal in each group, and a corresponding signal group is determined, wherein, the signal group determined by performing the sum-average operation on the sample sequence I in is W I , the signal group determined by performing the sum-average operation on the sample sequence Q in is W Q ; and a signal in the signal group W I and the signal group W Q is grouped to determine a signal belonging to the same chip in the sample sequence which experiences the sum-average operation, and the determined signal is output. The disclosure solves a problem in the related art that a CDMA synchronization method possesses a wrong sampling situation, which results in a high bit error rate of a receiving end, and reduces the bit error rate. |
