Abstract:
The present invention discloses a method and a device for detecting a primary synchronization signal and generating a sequence in a LTE system, so as to solve the problem that the overhead for 3GPP LTE system to store a local primary synchronization sequence is too much during the initial cell search process. The method for detecting a primary synchronization signal includes: directly generating a local primary synchronization signal sequence with equal amplitude in the time domain as a matched filter; performing a front-end processing for a received signal; performing the matched filtering between the received signal after the front-end processing and the local primary synchronization signal sequence; judging the output amplitude of the signal sequence obtained after the matched filtering; and then obtaining a judgment result of the local primary synchronization signal sequence.
Abstract:
The invention provides a multipath diversity receiving equipment of CDMA system, including: a sample quantization device, a sample data storage device, a code data storage device, a mulitpath resource management device, a code resource management device, a demodulation control device, a correlation demodulation device, a channel estimation unit, a energy accumulation device, and a energy analysis processing device. The multipath demodulation, multipath search and delay phase locked loop are all seen as the multipath demodulation, only the energy accumulation should be implemented for multipath phase of the multipath search and delay phase locked loop after the demodulation. The invention combines the multipath demodulation, multipath search and delay phase locked loop together through the hardware, and at the same time with the demodulation control unit , not only realizes the parallel demodulation of multiple multipaths by controlling the correlation demodulation device, but also realizes the operation of the N-dimension matrix, so as to provide the function extension of the combination detection.