IM/PS Server Mobile Internet Call State Synchronization
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Solution Overview
Problem
Communication systems that use both mobile and internet networks struggle to determine and share call states between user equipment (UEs), leading to difficulties in initiating appropriate types of calls, resulting in inefficient communication.
Innovation Solution
A communication system and method that involves a user equipment (UE) notifying an instant messaging/presence service server of call state changes over both mobile and internet networks, allowing the server to manage and share presence information between UEs, enabling them to determine whether to request an internet call or a mobile call.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the communication system provides state information only through the internet network, then the IM/PS can be provided, but the states of presentities cannot be determined in a cellular network
Solution Approach 1:
The patent extends the IM/PS functionality from internet networks to mobile networks by enabling the same service to operate on both communication types. The presence detection mechanism is made universal, allowing it to function on both internet and mobile networks, thus resolving the limitation where state information could only be provided through internet networks.
Solution Approach 2:
The patent introduces a presence detection mechanism as an intermediary component that operates independently on both mobile and internet networks. This intermediary enables state information to be detected and shared across both network types, solving the problem where state information was lost in cellular networks while maintaining IM/PS functionality.
2Ease of operation
If watchers cannot determine communication states of presentities, then the communication system operates simply, but watchers have difficulty communicating with presentities
Solution Approach 1:
The patent implements a feedback mechanism where the presence detection mechanism continuously monitors and reports the communication state of presentities to watchers. This feedback loop enables watchers to receive real-time updates on whether presentities are available for communication, significantly improving communication efficiency without adding complex operations for the watchers themselves.
3Adaptability or versatility
If the communication system supports both mobile and internet networks, then communication versatility is improved, but call state sharing between networks becomes complex
Solution Approach 1:
The patent segments the call state management function by implementing separate presence detection mechanisms for mobile and internet networks, each operating independently but feeding into a unified presence sharing system. This segmentation allows complex multi-network support to be managed through modular, independent components rather than a monolithic complex system.
Data Source
AI summary
A communication system, an apparatus, and a method for providing a call state thereof are provided. The method for providing a call state of a communication system, supporting communication over a mobile communication network and an interne network, includes, when presence of mobile call execution changes through a base transceiver station over the mobile communication network, notifying the presence of mobile call execution to an Instant Messaging/Presence Service (IM/PS) server managing presence of interne call execution over the interne network by a User Equipment (UE), and sending the presence of mobile call execution to another UE by the IM/PS server.