VCC Domain Selection Using User Preferences
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Solution Overview
Problem
Current Voice Call Continuity (VCC) systems fail to consider user preferences and operator policies when selecting domains for call routing, leading to call inconsistencies, frequent domain transfers, and malfunctions due to inadequate resource allocation and network state changes.
Innovation Solution
Implement a method where user preferences and operator policies are integrated into the domain selection process for both incoming and outgoing calls, allowing the VCC application server or terminal to prioritize domain selection information based on user-preferred or network-preferred domains, ensuring calls are routed over the most suitable domain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If domain selection is performed without considering user preferences and operator policies, then the call routing process is simple and fast, but call inconsistencies and frequent domain transfers occur reducing system reliability
Solution Approach 1:
The system performs preliminary actions by pre-storing user preferences and operator policies in the VCC application server before call routing decisions are needed. This allows the server to retrieve and apply relevant domain selection information without adding real-time complexity during the actual call setup process, thereby improving call consistency while maintaining operational simplicity.
Solution Approach 2:
The system implements feedback mechanisms where the VCC application server considers user preferences and operator policies when making domain selection decisions. This feedback loop ensures that domain transfers are minimized and call routing is optimized based on actual user needs and network conditions, improving reliability without requiring overly complex decision-making processes.
2Adaptability or versatility
If domain transfers are performed frequently to adapt to network state changes, then the system can respond to changing conditions, but call continuity is disrupted and service reliability decreases
Solution Approach 1:
The system applies dynamics by enabling flexible domain selection that can adapt to changing network conditions while maintaining stability. The VCC application server dynamically adjusts domain routing decisions based on real-time network state information combined with stored user preferences and operator policies, allowing the system to respond to changes without causing frequent disruptive transfers.
Solution Approach 2:
The system provides beforehand cushioning by pre-configuring user preferences and operator policies that guide domain selection decisions. This pre-established framework acts as a cushion, preventing unnecessary domain transfers by providing forward-looking guidance on optimal routing paths, thereby maintaining service continuity while still adapting to network changes.
3Ease of operation
If the VCC application server selects domains based solely on operator policy, then network management is simplified, but user preferences are ignored leading to suboptimal call routing
Solution Approach 1:
The system merges operator policy with user preferences by integrating both sets of criteria into the domain selection process. The VCC application server combines network management guidelines with individual user preferences to make comprehensive routing decisions, achieving both simplified network management and personalized service adaptation without requiring separate handling of each consideration.
Solution Approach 2:
The system achieves universality by creating a multi-functional domain selection mechanism that simultaneously considers operator policies, user preferences, and network conditions. This universal approach allows the VCC application server to handle diverse routing scenarios effectively, accommodating both network management requirements and user-specific needs through a single integrated process.
4Reliability
If domain selection information is not stored in the terminal, then the terminal structure remains simple, but the terminal cannot maintain user preferences leading to call routing inconsistencies
Solution Approach 1:
The system uses the VCC application server as an intermediary that stores and manages domain selection information. Rather than requiring the terminal to store all preference data, the server acts as a mediator that provides this information to the terminal when needed, improving routing consistency while keeping the terminal structure relatively simple.
Solution Approach 2:
The system performs preliminary action by having the VCC application server pre-store domain selection information and user preferences before they are needed for call routing. This allows the terminal to access pre-processed information without maintaining complex storage structures, thereby achieving consistent call routing while minimizing terminal complexity.
Data Source
AI summary
A method, server and terminal for providing a Voice Call Continuity (VCC) service, are discussed. According to an embodiment, the terminal includes a storage unit to store operator policy information and user preference information, the user preference information including domain selection information specifying a user-preferred domain to be used when originating the outgoing call from the terminal, the operator policy information including domain selection information specifying a network-preferred domain to be used when originating the outgoing call from the terminal; and a controller to perform a domain selection for the outgoing call based on the user preference information or the operator policy information.