Mobile Internet Call Session Management for Reduced Waiting Time
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Solution Overview
Problem
Current mobile Internet call services experience significant waiting times due to preprocessing requirements for mVoIP calls, degrading service quality and user satisfaction.
Innovation Solution
A device and method that pre-acquire and store NAT information for main call numbers, generating a lightweight session for direct call connections, reducing the need for server access and preprocessing, especially for frequently contacted numbers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If preprocessing for mVoIP call is performed (NAT information acquisition and SIP signaling), then call connection can be established, but call waiting time increases significantly
Solution Approach 1:
The patent applies preliminary action by acquiring NAT information and generating light weight sessions in advance before actual call requests. The terminal proactively obtains NAT information for main call numbers and maintains light weight sessions, so when a call request occurs, the preprocessing is already complete or near-complete, significantly reducing call waiting time while ensuring reliable call connection establishment
2Reliability
If NAT information acquisition and SIP signaling preprocessing is performed for each call, then direct call connection is achieved, but service quality degrades due to long waiting time
Solution Approach 1:
The system performs NAT information acquisition and light weight session generation in advance for main call numbers, storing this information locally in the terminal. This preliminary preparation eliminates the need for time-consuming preprocessing during actual calls, thereby improving service quality and user experience while maintaining reliable call connections
Solution Approach 2:
The patent implements local quality by maintaining different session types for different call scenarios. Light weight sessions are maintained for main call numbers (frequently contacted numbers) to provide fast connection, while full sessions are used for other calls. This differentiated approach optimizes service quality for the most important calls without compromising overall system reliability
3Loss of time
If preprocessing time is reduced by maintaining light weight sessions, then call waiting time decreases, but device complexity increases due to session management
Solution Approach 1:
The terminal locally stores and manages light weight sessions for main call numbers, differentiating between main call numbers (frequently contacted) and other numbers. This local management approach reduces the need for complex server-side session management while achieving fast call connection for the most important contacts, balancing device complexity with time reduction benefits
4Reliability
If full session is established for each call request, then complete call functionality is ensured, but call waiting time increases due to preprocessing requirements
Solution Approach 1:
The patent segments the session establishment process into two types: light weight sessions for main call numbers (frequently contacted numbers) and full sessions for other calls. This segmentation allows the system to use simplified preprocessing for the majority of calls (main call numbers) while reserving complete session establishment for less frequent calls, thereby reducing overall preprocessing time while maintaining complete call functionality when needed
Data Source
AI summary
There are provided a device and method for providing a mobile Internet call service. In order to reduce a call waiting time for an mVoIP call, when a call is an initial call after power of a terminal is turned on or using the main call number, information for a call connection is acquired in advance and a light weight session is maintained. When the mVoIP call is made later, the maintained light weight session is used to make a direct P2P call. Therefore, it is possible to reduce a call connection time. As a result, when the mVoIP call attempt is made, a call waiting time is significantly reduced and thus it is possible to provide a rapid response and improve user satisfaction. When the light weight session is maintained, access to a separate server system is not performed. As a result, it is possible to connect a P2P call even when call traffic is heavy.