Tethering Notification Unit for Reliable Client Handovers
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Solution Overview
Problem
In tethering communication systems, unintended network switching by the host device can lead to unreliable connections for the client device, as it switches communication channels based on its own convenience without considering the client's communication status, causing disconnections or quality issues.
Innovation Solution
The communication device includes a notification unit that informs the client device of predicted disconnection or quality deterioration in the current communication channel, allowing it to perform safe handovers or terminate flows before actual disconnection, ensuring reliable communication by switching to alternative channels or aggregating links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the host device switches communication channels based on its own convenience, then the host device can maintain its own communication quality, but the client device experiences unintended disconnections and unreliable connections
Solution Approach 1:
The host device receives notification criteria from the client device and uses this feedback to determine when to switch communication channels. The host device notifies the client device of channel switching decisions, creating a feedback loop that ensures the client device can prepare for and maintain reliable connections during transitions.
Solution Approach 2:
The client device receives notification of upcoming channel switches in advance, allowing it to perform preliminary actions such as establishing alternative communication paths or preparing handover procedures before the actual switch occurs, thereby maintaining connection reliability.
2Adaptability or versatility
If the host device switches communication channels independently, then the host device can adapt to changing network conditions, but the client device cannot perform safe handovers
Solution Approach 1:
The system implements bidirectional communication where the client device provides notification criteria to the host device, and the host device provides channel switching notifications to the client device. This feedback mechanism ensures that network adaptation actions taken by the host device are coordinated with the client device's handover capabilities.
Solution Approach 2:
The client device receives advance notification of channel switching intentions, enabling it to perform preliminary handover preparations such as establishing alternative communication paths or adjusting communication parameters before the actual switch, ensuring reliable handover execution.
3Reliability
If the host device switches communication channels without coordination, then the host device can maintain its communication quality, but application operations on the client device may experience errors
Solution Approach 1:
The host device receives notification criteria from the client device that may include application state information, and uses this feedback to time channel switches appropriately. The host device notifies the client device of upcoming switches, allowing applications to prepare and avoid errors during transitions.
Solution Approach 2:
Applications on the client device receive advance notification of channel switches and can perform preliminary actions such as saving state, establishing alternative communication paths, or pausing operations before the switch occurs, preventing application errors during the transition.
Data Source
AI summary
A communication device has a plurality of communication functions of connecting to an upstream network using different communication channels individually. The communication device includes: a communication control unit that controls communication with another communication device connected to the upstream network via the communication device; and a notification unit that notifies, before switching the communication channel, the another communication device of information related to the communication channel for the switching of the communication channel.