HSS Proxy for Subscriber Location Query Optimization
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Solution Overview
Problem
Current telecommunications networks lack efficient mechanisms to handle subscriber location management across multiple HSS nodes, particularly in scenarios involving number portability, technology migration, and mixed network standards, leading to increased query complexity and inefficiencies.
Innovation Solution
A Home Subscriber Server (HSS) proxy system that receives requests for subscriber information, utilizing databases for number portability and technology migration information to provide location details on behalf of the HSS, thereby simplifying queries and handling ported or migrated subscribers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If subscriber information is distributed across multiple HSS nodes, then the system can handle larger numbers of subscribers, but the query complexity increases due to the need for SLF lookups and multiple HSS queries
Solution Approach 1:
The patent introduces an HSS proxy as an intermediary component that sits between the I-CSCF and the actual HSS nodes. The proxy receives location information requests, performs SLF lookups, determines the appropriate HSS node, and forwards requests accordingly. This intermediary consolidates the complexity of multi-node queries into a single point of contact, reducing the overall query complexity while maintaining the ability to handle large numbers of subscribers across distributed HSS nodes.
2Adaptability or versatility
If the network supports number portability and technology migration, then the system becomes more versatile, but the query process requires additional database lookups and handling logic
Solution Approach 1:
The patent implements preliminary action by pre-configuring the HSS proxy with number portability databases and technology migration information databases before operation. These databases contain pre-established mappings between ported numbers and actual subscriber identifiers, and between migrated technologies and corresponding HSS nodes. When a query arrives, the proxy performs rapid lookups in these pre-configured databases rather than performing complex real-time analysis, thus supporting number portability and technology migration while minimizing query handling complexity.
3Productivity
If the HSS proxy consolidates multiple functions (SLF lookup, HSS selection, number portability checking), then the system efficiency improves, but the single point of failure risk increases
Solution Approach 1:
The patent applies segmentation by dividing the HSS proxy functionality into distinct modular components: a number portability checking module, a technology migration checking module, an HSS node selection module, and a request forwarding module. Each module handles a specific aspect of the query process independently. This modular segmentation allows individual modules to be maintained, updated, or replaced without affecting the entire system, thus improving query processing efficiency while mitigating the single point of failure risk through functional independence and potential redundancy.
Data Source
AI summary
Methods, systems, and computer readable media for providing a home subscriber server (HSS) proxy are disclosed. According to one aspect, the subject matter described herein includes a method for providing a home subscriber server proxy. The method includes, at a node separate from a home subscriber server in a telecommunications network, receiving, from a requesting network entity, a request for information maintained at a home subscriber server, the information being associated with a subscriber, and, in response to receiving the request for information maintained at a home subscriber server, providing the information associated with the subscriber to the requesting network entity on behalf of the home subscriber server.