Integrated ENUM and Number Portability Translation System
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Solution Overview
Problem
Current communication systems require two separate signaling messages to translate ENUM addresses into LRNs, leading to delayed call setup and inefficient routing in number portability scenarios, as they route calls based on E.164 numbers before querying for LRNs.
Innovation Solution
An IP system processes a single signaling message to translate ENUM addresses into LRNs, allowing the IP system to route calls directly based on the LRN, reducing the number of signaling messages and avoiding unnecessary network routes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If two separate signaling messages are used to translate URI into E.164 number and then into LRN, then the translation can be completed, but the call setup time is delayed and the routing efficiency is reduced
Solution Approach 1:
The patent combines the ENUM translation function and NP translation function into a single integrated processing system. When a signaling message with a URI is received, the system performs both translations in one operation: first translating the URI to an E.164 number using ENUM data, then translating the E.164 number to an LRN using NP data, all without requiring separate signaling messages for each translation step.
Solution Approach 2:
The system performs the E.164 number translation from the URI in advance as part of the integrated processing, so that when the NP translation is performed, the E.164 number is already available. This preliminary action eliminates the need to wait for a separate signaling message to complete the first translation before starting the second translation.
2Productivity
If the IP network routes the call based on E.164 number before NP query, then the call routing can proceed, but the call may be routed through unnecessary intermediate networks
Solution Approach 1:
The patent merges the routing decision process with the translation process by obtaining the LRN before routing the call. The integrated processing system returns the final LRN to the IP network, which then uses this LRN to determine the optimal routing path directly to the destination network, avoiding unnecessary intermediate networks.
Solution Approach 2:
The integrated processing system acts as an intermediary between the IP network and the translation databases (ENUM and NP). It receives the URI, performs both translations internally, and returns the final LRN to the IP network, which then uses this information to make accurate routing decisions without needing to query separate databases independently.
Data Source
AI summary
An IP system receives a call placed to an ENUM address. The IP system transfers a signaling message indicating the ENUM address to a processing system. For a call to a ported number, the processing system translates the ENUM address into the LRN for a communication node that serves the called party and returns the LRN to the IP system. The IP system routes the call based on the LRN.