Communication Session Anchoring in Multi-Mode Mobile Networks
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Solution Overview
Problem
Existing techniques for anchoring communication sessions in multiple mode mobile phones are inefficient, particularly when handoffs between different network types cannot occur, leading to unnecessary resource usage and reduced efficiency.
Innovation Solution
The solution involves identifying potential access nodes for handoff between different network types, such as WiFi VoIP and cellular networks, and only anchoring the communication session in the second network if there is a possibility of handoff, using a mapping table to determine overlapping coverage and configuring or discovering suitable access nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If communication sessions are anchored in the home IP network for multiple mode mobile phones, then call processing is simplified, but additional resources are consumed in cellular networks reducing efficiency
Solution Approach 1:
The patent applies local quality by making the anchoring decision location-dependent. Instead of always anchoring in the home IP network, the system determines the appropriate anchor network based on the mobile phone's current location and network environment. This allows the system to maintain simplicity where applicable while avoiding unnecessary resource consumption in specific locations.
Solution Approach 2:
The patent implements dynamics by making the anchoring point flexible rather than fixed. The communication session can be dynamically anchored in either the home IP network or the visited network depending on handoff possibilities and current network conditions. This dynamic approach optimizes resource usage while maintaining processing efficiency.
2Loss of energy
If communication sessions are anchored in the visited network, then resource usage is reduced, but handoff capability between network types must be ensured
Solution Approach 1:
The patent applies preliminary action by determining handoff possibilities before making the anchoring decision. The system proactively identifies whether handoff between network types is possible in the visited network, and only anchors the communication session there if handoff capability exists. This preliminary verification ensures reliability while achieving resource efficiency.
3Ease of operation
If all calls are anchored in the home IP network, then network management is simplified, but efficiency is reduced when handoffs are not possible
Solution Approach 1:
The patent implements dynamics by making the anchoring decision adaptive rather than static. The system automatically selects the appropriate anchor network (home IP or visited network) based on real-time handoff possibilities and network conditions. This dynamic approach maintains operational simplicity through automated decision-making while significantly improving communication efficiency by avoiding unnecessary home network anchoring.
4Reliability
If potential access nodes are identified and coverage overlap is determined, then handoff possibility is established, but additional processing steps are required
Solution Approach 1:
The patent applies preliminary action by pre-determining handoff possibilities and storing this information for future anchoring decisions. The system performs the complex analysis of access node identification and coverage overlap determination in advance, before the actual communication session anchoring is needed. This preliminary processing ensures accurate handoff determination while reducing the complexity of real-time decision-making.
Data Source
Figure 1~2
AI summary
Anchoring a communication session for a target mobile phone includes identifying a current access node operable to provide the target mobile phone access to a first network of a first network type. Potential access nodes operable to provide a mobile phone access to a second network of a second network type are identified. Whether the communication session can be handed off to a potential access node of the one or more potential access nodes is established. Anchoring of the communication session is initiated in the second network only if the communication session can be handed off to a potential access node of the one or more potential access nodes.