Public digital trunking (PDT) cluster core network system and disaster tolerance switching method thereof

• Main Authors: LIU ZURONG, SONG FEIHAO
• Format: Patent
• Language: Chinese; English
• Published: 04.08.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a public digital trunking (PDT) cluster core network system and a disaster tolerance switching method thereof. The system comprises a node selection network element, a plurality of execution network elements with the same function, and a plurality of storage network elements, wherein the node selection network element is taken as a network interface for external communication, and used for providing a unified network receiving-transmitting function externally, monitoring running states of the execution network elements, and allocating tasks to the execution network elements; the execution network elements are used for triggering service processing according to a message pushed by the node selection network element; and the storage network elements are used for storing service data run by the execution network elements. Through adoption of the PDT cluster core network system and the disaster tolerance switching method thereof, the node selection network element is taken as a unified ext