Bidirectional Address Conversion in SIP-Controlled Data Streams
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Solution Overview
Problem
The existing methods for bidirectional address conversion between IPv4 and IPv6 data terminals in SIP-controlled data streams are complex and require significant changes to control software, especially when using the ICE protocol, which is not efficient for mixed IPv4 and IPv6 networks.
Innovation Solution
A method and device utilizing an address converter and SIP server to intercept and modify signaling messages and data packets, ensuring all terminals communicate using a compatible IP version, allowing seamless data transfer across IPv4 and IPv6 areas with minimal changes to existing infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bidirectional address conversion is implemented using existing methods between IPv4 and IPv6 terminals, then address translation functionality is achieved, but the system complexity and control software modification requirements increase significantly
Solution Approach 1:
The patent introduces an address converter as an intermediary component that sits between IPv4 and IPv6 terminals. This converter handles all address translation operations, allowing existing terminals to communicate without modifying their control software. The converter translates IPv6 addresses to IPv4 addresses and vice versa, enabling bidirectional communication while keeping terminal devices unchanged.
Solution Approach 2:
The system is segmented into distinct functional components: IPv4 terminals, IPv6 terminals, and an address converter. This segmentation allows each component to operate independently with its native protocol, while the converter handles the translation between protocols. This reduces the complexity burden from individual terminals to a dedicated conversion component.
2Adaptability or versatility
If ICE protocol is used for address conversion in mixed IPv4 and IPv6 networks, then protocol compatibility is achieved, but the efficiency and performance deteriorate
Solution Approach 1:
The patent changes the fundamental parameter of address translation by implementing direct IPv4-IPv6 address conversion in the address converter, rather than using the ICE protocol's complex multi-step negotiation process. This parameter change from protocol-based negotiation to direct address translation significantly improves transmission efficiency while maintaining compatibility.
3Adaptability or versatility
If individual terminals are modified to support both IPv4 and IPv6 protocols, then protocol versatility is improved, but the difficulty of deployment and maintenance increases
Solution Approach 1:
The address converter is designed as a universal component that handles both IPv4 to IPv6 and IPv6 to IPv4 translations. This multi-functional converter serves all translation needs in the network, allowing terminals to maintain their original single-protocol design while still achieving cross-protocol communication through the converter.
Data Source
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AI summary
The invention relates to a method and to a device for the bidirectional address conversion in SIP-controlled data streams between IPv4 data devices (T2) and IPv6 data terminals (T1) in mixed IPv4 and IPv6 data networks using an address converter (AU) and an address converter (AU) integrated in a SIP server (S1 or S2).