Mobile Communication Roaming Control and Caller Notification
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Solution Overview
Problem
Mobile communication devices, especially those with roaming functions, face issues where users receive unwanted calls and emails while abroad, leading to unnecessary communication costs and inconvenience, as existing solutions do not effectively inform callers of the device's roaming status and unavailability for reception outside specific time frames.
Innovation Solution
A mobile communication apparatus with a control unit that detects roaming areas and prevents announcement of incoming calls, instead sending a message to the caller indicating unavailability, thereby reducing unnecessary communication and informing the caller of the device's roaming status and unavailability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the mobile communication apparatus refuses all incoming calls while roaming, then communication costs are reduced, but the calling party cannot know when an outgoing call should be executed
Solution Approach 1:
The patent implements a feedback mechanism where the mobile communication apparatus sends a notification message to the calling party's terminal, informing them that the called party is currently roaming and unavailable for incoming calls. This feedback loop resolves the information loss by keeping the calling party informed about the called party's status, allowing them to choose appropriate times for outgoing calls without incurring unnecessary communication costs.
Solution Approach 2:
The patent introduces an intermediary message transmission mechanism between the called party's terminal and the calling party's terminal. This intermediary system conveys the roaming status and unavailability information without establishing actual communication connections, thus preventing direct communication costs while still providing necessary information to both parties.
2Object-affected harmful factors
If the mobile communication apparatus sets to refuse any reception without condition while roaming, then unintentional incoming communication is avoided, but the calling party has to try to make outgoing calls many times
Solution Approach 1:
The patent applies preliminary action by having the called party's terminal proactively send a notification message to the calling party's terminal before any actual communication attempt. This advance notification informs the calling party of the called party's roaming status and unavailability, allowing them to plan their outgoing calls appropriately and avoid repeated unsuccessful attempts, thus saving time while preventing unintentional communication.
3Reliability
If the mobile communication apparatus allows incoming call reception, then communication with callers is maintained, but unnecessary communication costs are incurred while roaming
Solution Approach 1:
The patent applies local quality by implementing different reception policies for different locations. When the mobile communication apparatus is detected to be in a roaming area, it automatically applies a restrictive policy that refuses incoming calls and sends notification messages instead. This localized quality change ensures that communication availability is maintained for legitimate purposes while preventing unnecessary costs during roaming periods.
Data Source
AI summary
A communication apparatus such as a cellular phone is described in which a control unit judges, when an incoming call is received, whether a sounding unit or a vibrating unit is to be activated for announcing the reception of the incoming call. The control unit determines that the announcing of the reception is prohibited if the mobile communication apparatus is in a roaming area. When the announcing of the reception is prohibited, the control unit sends a message, showing that the reception of the incoming call is unavailable, to a calling party.