IMS Message Conversion for Heterogeneous Network Interworking
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Solution Overview
Problem
The conventional art lacks a specific solution for interworking between messages on IMS networks and non-IMS networks due to differences in network protocols between 2G/2.5G PLMN networks and IMS systems.
Innovation Solution
A method and apparatus for converting IMS messages into non-IMS messages and vice versa, allowing for the transmission of messages between heterogeneous networks by using a message conversion apparatus with receiving, converting, and sending modules to adapt message formats and IDs, enabling interworking between IMS and non-IMS networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If message transmission is implemented between IMS and non-IMS networks using different network protocols, then interworking capability is improved, but device complexity increases due to the need for message conversion apparatus and format adaptation
Solution Approach 1:
A message conversion apparatus is introduced as an intermediary component between IMS and non-IMS networks. This apparatus receives messages from one network type, converts the message format and terminal identifiers to match the target network's protocol, and forwards the converted message. The intermediary handles protocol differences without requiring changes to the existing network infrastructures, thus improving interworking capability while containing complexity within the conversion apparatus itself.
2Adaptability or versatility
If message format conversion is performed between IMS and non-IMS messages, then compatibility is improved, but processing time increases due to conversion operations
Solution Approach 1:
The message conversion apparatus performs format conversion operations as preliminary actions before message routing. By converting message formats and terminal identifiers early in the message flow, the system prepares messages for efficient routing without requiring additional conversion steps later in the process. This preliminary conversion reduces overall processing time despite the initial conversion overhead.
3Measurement precision
If terminal ID conversion is implemented between IMS and non-IMS messages, then message routing accuracy is improved, but information processing complexity increases
Solution Approach 1:
The message conversion apparatus acts as an intermediary that handles terminal identifier conversion between IMS and non-IMS networks. It extracts terminal identifiers from incoming messages, converts them to the appropriate format for the target network, and inserts the converted identifiers into the outgoing messages. This intermediary approach ensures accurate routing while isolating conversion complexity within the apparatus.
Data Source
AI summary
A method and apparatus for transmitting messages between heterogeneous networks are disclosed. The method includes: receiving an IP multimedia subsystem (IMS) message from an IMS network; converting the format of the IMS message into the format of a non-IMS message and converting the sender terminal ID of the IMS message into the sender terminal ID of the non-IMS message; and sending the non-IMS message that includes the content and sender terminal ID of the non-IMS message to a receiver terminal of the non-IMS message through the home network of the non-IMS message. The disclosure can implement message interworking between an IMS user terminal and a non-IMS user terminal.