NGN Card Call Service Authentication via Extraction
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Solution Overview
Problem
Next Generation Network (NGN) struggles to provide card call services to unregistered user terminals due to the lack of matching calling information, leading to service rejection and reduced user satisfaction, which impedes the development of NGN services.
Innovation Solution
Implement a method and apparatus that focus on obtaining card information from user terminals initiating card calls, determining if it supports the card call, and providing the service accordingly, without requiring Media Resource Server involvement in serial number and password authentication, thus enabling card call services for supported user terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If NGN uses traditional PSTN authentication method requiring calling information matching, then registered user terminals can be authenticated, but unregistered user terminals are rejected from receiving card call services
Solution Approach 1:
The patent extracts the card information verification function from the traditional PSTN authentication mechanism. Instead of requiring calling information to match registered user terminal data, the system independently verifies card information (serial number and password) provided by the user terminal, allowing both registered and unregistered terminals to access card call services as long as they provide valid card credentials.
Solution Approach 2:
The patent introduces a card information verification mechanism as an intermediary between the user terminal and the card call service. This intermediary verifies the card's serial number and password independently of the user terminal's registration status, enabling unregistered terminals to receive services if they possess valid card information.
2Adaptability or versatility
If NGN implements card call service for unregistered user terminals, then service coverage is expanded, but calling information authentication becomes problematic
Solution Approach 1:
The patent separates the authentication function into two independent parts: user terminal registration verification (for registered terminals) and card information verification (for both registered and unregistered terminals). By extracting the card verification function, the system can serve unregistered terminals without complicating the authentication process, as card verification is a straightforward serial number and password check independent of terminal registration status.
3Reliability
If Media Resource Server is involved in serial number and password authentication, then authentication can be performed, but service speed is reduced and resources are consumed
Solution Approach 1:
The patent extracts the authentication function from the Media Resource Server (MRS) and relocates it to the call processing server. The call processing server directly verifies the serial number and password against stored card information, eliminating the need for MRS involvement in authentication. This extraction significantly improves service speed by removing the MRS authentication step while maintaining reliable authentication capability.
Solution Approach 2:
The patent introduces the call processing server as an intermediary that handles authentication directly, bypassing the MRS for this function. The call processing server acts as the mediator between the user terminal and the card call service, performing authentication locally without requiring MRS participation, thus reducing service time and resource consumption.
Data Source
AI summary
A method and an apparatus for implementing a card call service are disclosed in embodiments of the present invention. The method includes: obtaining card information of a user terminal when determining that a call initiated by the user terminal is a card call; providing a card call service for the user terminal when determining, according to the card information, that the card call is supported. It can be seen that NGN may provide a user terminal with a card call service when the user terminal initiating a card call has the card information which may support a card call, so that the satisfaction of users is remarkably improved.