Subscriber Management System Session Maintenance Delay
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Solution Overview
Problem
Subscriber management system maintenance activities in wireless communication environments often result in ongoing packet-switched voice calls being dropped due to immediate detachment of mobile devices from the network, disrupting user experiences during maintenance or customer care activities.
Innovation Solution
A subscriber management system that delays detaching mobile devices from the network until active communication sessions end, allowing customer care activities to continue uninterrupted by determining the priority of sessions and differentiating between true subscriber withdrawal and maintenance actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If subscriber information is immediately deleted from the subscription database during maintenance activities, then the database maintenance can be completed efficiently, but ongoing packet switched voice calls drop and mobile devices are detached from the network
Solution Approach 1:
The system performs preliminary actions by sending a notification to the MME/SGSN before deleting subscriber information from the database. This advance notification allows the network to prepare for the upcoming deletion by managing active sessions appropriately, thereby preventing call drops while enabling database maintenance to proceed
Solution Approach 2:
The patent introduces an intermediary mechanism where the HSS/HLR communicates with the MME/SGSN through standardized interfaces before subscriber information deletion. This intermediary communication layer coordinates between the database maintenance operation and the mobility management functions, ensuring that active sessions are preserved during the transition
2Ease of manufacture
If mobile devices are detached immediately when subscriber information is removed, then the network follows 3GPP standards for database maintenance, but customer care activities and ongoing calls are disrupted
Solution Approach 1:
The system dynamically adjusts the detachment behavior based on the presence of active communication sessions. Instead of a static immediate detachment policy, the MME/SGSN evaluates session status and delays detachment until sessions are properly handled or terminated, balancing standard compliance with service continuity
Solution Approach 2:
The patent changes the temporal parameter of detachment by introducing a delay mechanism. The detachment is not performed immediately upon subscriber information removal but is postponed until after active sessions are managed, transforming the detachment timing from a fixed immediate action to a conditional delayed action
Data Source
AI summary
A subscriber management system for maintaining active communication sessions during subscriber maintenance activities is provided. The system can delay detaching mobile devices from the mobile network when there are active communication sessions that are associated with subscriber management maintenance activities or customer care activities in order to avoid disrupting the subscriber experience. The system can delay deleting the subscriber information until the active sessions have ended, which will allow the customer care activities to continue uninterrupted. In an embodiment, the subscriber management system can determine whether to detach the active communication session based on the priority of the session, such as whether it is real-time, or with a customer care element of the mobile network.