Data Channel Service Discovery for Reliable IMS Establishment
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Solution Overview
Problem
The success rate for establishing a Data Channel (DC) in next-generation IP multimedia subsystem networks is low, leading to increased communication delays due to the need for re-establishment.
Innovation Solution
A method where a first network element sends required DC media and/or call request information to a second network element, which searches for matching third network elements, enabling efficient discovery and selection to improve the DC success rate and reduce communication delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional DC establishment methods are used, then the system maintains simplicity, but the DC establishment success rate is low
Solution Approach 1:
The patent applies preliminary action by having network elements pre-register their DC media capability information, interface capability information, and other relevant parameters with a central repository before actual DC establishment is needed. When DC establishment is required, the system can quickly query and match appropriate network elements without complex real-time negotiations, thereby improving success rate while maintaining operational simplicity.
2Reliability
If DC re-establishment is performed after failure, then connection can be restored, but communication delay increases
Solution Approach 1:
The patent implements preliminary action by pre-establishing a repository of network element capability information and implementing efficient service discovery mechanisms. When DC establishment fails, the system can quickly query the pre-stored information to identify alternative network elements and initiate re-establishment procedures faster, reducing the time loss associated with DC failures and reconnections.
3Manufacturing precision
If network elements are discovered without specific criteria, then discovery process is simple, but matching appropriate elements becomes difficult
Solution Approach 1:
The patent applies parameter changes by defining and utilizing specific capability parameters (DC media capability, interface capability, supported protocols, etc.) that network elements register with the system. These parameters enable precise filtering and matching of network elements based on actual requirements, improving matching precision while the structured parameter-based approach keeps the processing complexity manageable through standardized queries and responses.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a centralized repository or service discovery function that stores network element capability information and facilitates matching. This intermediary handles the complex information processing and matching logic, allowing individual network elements to maintain simplicity while achieving precise matching through the intermediary's coordinated information management.
Data Source
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AI summary
The present disclosure provides an information processing method and apparatus, a communication device, and a storage medium. The method comprises: sending a first service discovery request to a second network element, the first service discovery request comprising at least required DC media information and/or related information of a current call request; and receiving a first service discovery response returned by the second network element, the first service discovery response comprising at least third network element related information or third network element set related information.