SIP User Information Transfer via Integrated Authentication Server
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Solution Overview
Problem
Existing wireless communication networks face inefficiencies and security issues in transferring user information during Session Initiation Protocol (SIP) sessions, particularly due to the use of external user servers that are slow and provide limited information about the inviting party.
Innovation Solution
A communication system that integrates user server and SIP server with a direct Application Programming Interface (API) for rapid, secure transfer of user information, including authentication and location data, directly between user equipment and the SIP system, bypassing external servers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external user server is used to transfer SIP messages and user information, then the system can provide user information transfer capability, but the transfer speed is slow and security is compromised
Solution Approach 1:
The patent extracts the user information transfer function from the external user server and relocates it directly into the SIP server. This is achieved by configuring the SIP server to receive SIP messages from user equipment and extract user information directly, eliminating the need for external server mediation. The SIP server now performs both authentication and information transfer functions internally, resolving the contradiction by removing the security vulnerability and speed limitation imposed by external servers.
Solution Approach 2:
The patent merges the user server functionality with the SIP server into a single integrated system. The SIP server now handles both session initiation and user information transfer operations that were previously separated. This consolidation eliminates the security gap created by external server communication and accelerates transfer speed by removing inter-server communication delays, directly resolving the technical contradiction.
2Productivity
If an external user server is used to transfer user information, then user information can be transferred, but the system complexity increases and performance deteriorates
Solution Approach 1:
The patent extracts the unnecessary external server component from the system architecture. By removing the external user server and its associated communication interfaces, the system complexity is reduced while maintaining full user information transfer capability. The SIP server now handles all operations internally, eliminating the performance-deteriorating complexity of external server integration.
3Loss of information
If limited information is transferred in SIP messages by the wireless communication network, then network security is maintained, but the inviting party information is insufficient
Solution Approach 1:
The patent uses the SIP server as an intermediary that selectively extracts and forwards user information from SIP messages. The SIP server acts as a trusted mediator that can provide complete user information (name, picture, location) to the invited party while maintaining security through controlled information extraction and validation. This resolves the contradiction by providing complete information through a secure intermediary rather than direct exposure.
Data Source
AI summary
A communication system communicates between an inviting user and an invited user. The communication system authenticates a User Equipment (UE) of the inviting user. The communication system receives a user image and a Session Initiation Protocol (SIP) message for the invited user from the authenticated UE of the inviting user. The communication system generates another SIP message for the invited user having the authentication information and the user image and transfers the other SIP message to another UE of the invited user. The communication system exchanges user data between the UE of the inviting user and the other UE of the invited user in response to the other SIP message.