Patent ID: 9444610
Filing Date: 2016-09-13
CPC Classification: H04L,H04W

Claim Text:
1. A device for detecting a primary synchronization signal, comprising: a capturing and storage module, configured to capture a time-domain signal sequence for synchronization; a correlation module, coupled to the capturing and storage module, configured to obtain a correlation result corresponding to the time-domain signal sequence, wherein the correlation result is a value obtained from performing a sliding correlation on the time-domain signal sequence; a normalization module, coupled to the correlation module, configured to normalize the correlation result according to a received signal strength indicator corresponding to the time-domain signals to obtain a ratio of the correlation result to the received signal strength indicator; and a sorting module, coupled to the normalization module, configured to sort the normalized correlation result to ascertain a position of a peak value corresponding to the correlation result, wherein the position of the peak value is a position of the primary synchronization signal; wherein, the correlation result is obtained according to a correlation operation on three sets of local characteristic sequences when a sampling point is read to obtain the correlation result, and the received signal strength indicator corresponding to the time-domain signal sequence and the correlation result are obtained in parallel in a same clock cycle; and wherein, the correlation module comprises: