Call Supplementary Service Configuration Synchronization Across LTE 2G 3G
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Solution Overview
Problem
The existing technologies have a low capability to adapt to multiple communications networks during call supplementary service configuration, leading to non-synchronous configurations when users move between LTE, 2G, and 3G networks, requiring manual reconfiguration and inconsistent service settings.
Innovation Solution
A synchronization method and apparatus that allow terminals to receive and upload supplementary service configuration instructions to a mobile switching center using the circuit switched domain, ensuring that configuration parameters are stored both on the terminal and in the home location register, maintaining consistency across different network types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If service configuration is stored only in HLR for CS domain or only on terminal for IMS domain, then the configuration is simple to manage in a single network, but the configuration becomes non-synchronous when users move between LTE, 2G, and 3G networks
Solution Approach 1:
The patent segments the configuration storage into two parts: HLR stores CS domain configuration while the terminal stores IMS domain configuration. This segmentation allows each domain to have its own storage location, resolving the contradiction by enabling both network-specific simplicity and cross-network synchronization through separate but coordinated storage mechanisms.
Solution Approach 2:
The patent implements a nested structure where the terminal contains both its own configuration database and an HLR configuration database. The HLR configuration database is nested within the terminal, allowing the terminal to access and synchronize CS domain configuration from HLR while maintaining its own IMS domain configuration, thus achieving configuration consistency across networks.
2Ease of operation
If configuration is stored in HLR for CS domain, then network-side management is centralized, but manual reconfiguration is required when switching to LTE network
Solution Approach 1:
The patent performs preliminary action by pre-storing the HLR configuration database within the terminal before network switching occurs. When the user switches from CS domain to IMS domain, the terminal already has the configuration data available locally, eliminating the need for manual reconfiguration and reducing reconfiguration time to zero.
Solution Approach 2:
The patent creates a copy of the HLR configuration database and stores it within the terminal. This copying mechanism allows the terminal to access configuration data locally without needing to query HLR in real-time, thereby eliminating manual reconfiguration steps and reducing time loss when switching between network domains.
3Adaptability or versatility
If separate configuration methods are used for different network domains, then each domain can be optimized independently, but the overall system complexity increases
Solution Approach 1:
The patent implements a universal configuration management approach where the terminal's configuration management module can handle both CS domain configuration (from HLR) and IMS domain configuration (local) through a unified interface. This multi-functionality allows the system to support multiple network domains independently optimized while presenting a simple unified management interface, reducing overall system complexity.
Data Source
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AI summary
A synchronization method for call supplementary service configuration includes: receiving an entered supplementary service configuration instruction, and obtaining a configuration parameter corresponding to the supplementary service configuration instruction; uploading the configuration parameter to a mobile switching center by using a circuit switched domain, so that the mobile switching center stores the configuration parameter as call supplementary service configuration of the circuit switched domain into a home location register; receiving returned configuration feedback information; and determining, according to the configuration feedback information, whether configuration succeeds, and storing the configuration parameter as on-terminal call supplementary service configuration if the configuration succeeds. In addition, a synchronization apparatus and system for call supplementary service configuration as well as a synchronization method for call supplementary service configuration that matches the system are provided. The foregoing synchronization method, apparatus, and system for call supplementary service configuration can enable on-terminal call supplementary service configuration to adapt to multiple communications networks.