Communication Session Transfer Between Companion Devices
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Solution Overview
Problem
There is a need for seamless mobility in communication systems, where users can transition between portable and wireline devices without disrupting ongoing communication sessions, particularly for public safety users who require continuous connectivity.
Innovation Solution
The method involves synchronizing session parameters between companion devices, allowing a portable device to transition to an inactive mode and a wireline device to take over actively, using a shared identifier and secure protocol, and vice versa, ensuring continuous communication without requiring users to re-establish session parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users switch between portable and wireline devices, then device usage comfort is improved, but communication session continuity is disrupted
Solution Approach 1:
The system performs preliminary actions by establishing device pairing and synchronization relationships before the actual device switch occurs. The portable device and wireline device are pre-configured with shared identifiers and session parameters, so when a switch is needed, the transition can occur immediately without disruption to the ongoing communication session.
Solution Approach 2:
The system uses an intermediary mechanism where the wireline device acts as a companion device that can take over the communication session from the portable device. The session parameters and identifier are transferred through this intermediary relationship, allowing seamless handoff without directly terminating the original session.
2Ease of operation
If users switch from portable to wireline devices, then usage comfort is improved, but transition time and potential session loss increase
Solution Approach 1:
Device pairing and session parameter synchronization are performed in advance during idle periods or when devices are naturally connected (e.g., when portable device is charging or docked). This preliminary preparation ensures that when a user needs to switch devices, the transition can occur instantly without any noticeable delay or session interruption.
Solution Approach 2:
The system maintains continuous synchronization between companion devices during their operational lifecycle. Session parameters are continuously updated and maintained in both devices, ensuring that the useful action of communication can continue uninterrupted during device transitions.
3Ease of operation
If seamless device switching is implemented, then user convenience is improved, but system complexity increases
Solution Approach 1:
The system implements a universal companion device framework where both portable and wireline devices can function as active communication endpoints. The same session parameters and identifier work across different device types, allowing the system to handle multiple device scenarios without requiring separate complex protocols for each device pair.
Solution Approach 2:
The system manages complexity by focusing on parameter transfer and synchronization between devices. Rather than implementing complex handoff protocols, the solution changes the state parameters (session parameters, identifier) from one device to another, maintaining simplicity through parameter-based state management.
Data Source
AI summary
A method for transferring a communication session between companion devices includes connecting to a communication session over a communication system using a current set of session parameters and an identifier for a portable wireless communication device. The portable wireless communication device is in an active mode for the communication session. The method also includes: detecting that the portable wireless communication device is within a range of a companion wireline communication device that is configured with the identifier for the portable wireless communication device; and synchronizing with the companion wireline communication device, wherein the synchronizing includes transferring the current set of session parameters to the companion wireline communication device. Additionally, the method includes receiving an indication that the companion wireline communication device is in the active mode for the communication session and, responsive to the indication, transitioning the portable wireless communication device to an inactive mode for the communication session.