Configurable Diameter Address Resolution in Signaling Routers

The patent introduces a Diameter Signaling Router (DSR) as an intermediary component that receives Diameter signaling messages and performs address resolution to determine the final destination. The DSR acts as a mediator between the message originator and the final destination node, enabling centralized routing control while maintaining scalability. The DSR resolves destination addresses by matching routing entity identities from messages against configured rules and hierarchies, thus solving the contradiction between maintaining routing control and achieving scalability.

The patent implements a universal address resolution mechanism in the DSR that can handle multiple types of routing entity identities (e.g., subscriber identifiers, device identifiers, group identifiers) across different Diameter signaling message types. The DSR is configured with hierarchical rules that can match various parameter types from different messages (such as user identities, device identities, or group identities) and resolve them to appropriate destination addresses. This multi-functional capability enables the system to maintain message specificity while achieving routing flexibility across diverse message types and parameter formats.