Abstract:
The present invention provides an activated code channel detection method. The method includes: performing de-scrambling and de-spreading on a received signal according to a node corresponding to a current spreading factor, obtaining symbol energy corresponding to each node; acquiring a first decision parameter and a second decision parameter according to symbol energy of two adjacent nodes of a same parent node and a pre-acquired noise threshold, where the first decision parameter is a comparison result of comparing the noise threshold with symbol energy of each of the two adjacent nodes, and the second decision parameter is a comparison result of comparing the symbol energy of the two adjacent nodes; detecting modulation modes of code channels corresponding to the two adjacent nodes, obtaining a modulation mode detection result; and executing activated code channel detection according to the first decision parameter, the second decision parameter, and the modulation mode detection result.
Abstract:
Embodiments of the present invention disclose a code channel detecting method and a related device and a communication system. In the solutions provided by the embodiments of the present invention, whether a DPA code channel is in an active state is determined with multiple thresholds based on a first reference value and a third reference value, or based on a first reference value, a second reference value and a third reference value. This mechanism takes multiple possible false determination situations into consideration, thereby ensuring a code channel correct detection rate in multiple interference scenarios and relatively reducing a false alarm rate.
Abstract:
The present invention provides an activated code channel detection method. The method includes: performing de-scrambling and de-spreading on a received signal according to a node corresponding to a current spreading factor, obtaining symbol energy corresponding to each node; acquiring a first decision parameter and a second decision parameter according to symbol energy of two adjacent nodes of a same parent node and a pre-acquired noise threshold, where the first decision parameter is a comparison result of comparing the noise threshold with symbol energy of each of the two adjacent nodes, and the second decision parameter is a comparison result of comparing the symbol energy of the two adjacent nodes; detecting modulation modes of code channels corresponding to the two adjacent nodes, obtaining a modulation mode detection result; and executing activated code channel detection according to the first decision parameter, the second decision parameter, and the modulation mode detection result.
Abstract:
Embodiments of the present invention disclose a code channel detecting method and a related device and a communication system. In the solutions provided by the embodiments of the present invention, whether a DPA code channel is in an active state is determined with multiple thresholds based on a first reference value and a third reference value, or based on a first reference value, a second reference value and a third reference value. This mechanism takes multiple possible false determination situations into consideration, thereby ensuring a code channel correct detection rate in multiple interference scenarios and relatively reducing a false alarm rate.