Multi-Subscription Session Switching With Proactive Suspend Requests
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Solution Overview
Problem
Existing wireless communication systems with multiple-subscription devices face challenges in managing data sessions efficiently, leading to potential data loss when transitioning between networks.
Innovation Solution
A method for a device with multiple subscriptions to suspend and resume data sessions based on network transitions, allowing seamless communication by sending suspend requests to the current network and resuming when necessary, using components like subscription managing and session requesting modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the device maintains data sessions on multiple networks simultaneously, then communication coverage is improved, but resource usage and device complexity increase
Solution Approach 1:
The device performs preliminary actions by sending a suspend request to the first network before transitioning to the second network. This proactive suspension prevents resource wastage and simplifies session management by ensuring that only active network sessions are maintained, thereby reducing device complexity while preserving communication coverage.
Solution Approach 2:
The session state is made dynamic, transitioning from active to suspended based on real-time network conditions. The device adapts its session management by suspending data sessions on networks where communication is not currently needed, allowing flexible resource allocation and reducing overall system complexity.
2Speed
If the device transitions to active communication state on the second network, then communication responsiveness is improved, but data loss may occur on the first network
Solution Approach 1:
The device sends a suspend request to the first network before transitioning to the second network. This preliminary action ensures that the first network is notified of the upcoming transition, allowing it to pause data transmissions and avoid data loss, while still enabling rapid transition to the second network for improved responsiveness.
Solution Approach 2:
The data session is maintained in a suspended state rather than being terminated, preserving the session context and enabling quick resumption. This continuity mechanism ensures that no data is lost during network transitions while allowing the device to respond quickly to communication needs on the second network.
3Loss of information
If the device sends suspend requests during network transition, then data loss is prevented, but communication interruption time increases
Solution Approach 1:
The suspend request is sent in advance before the actual network transition occurs. By notifying the first network beforehand, the device allows the network to prepare for the transition, pausing data transmissions proactively. This prevents data loss while minimizing interruption time, as the network is already prepared when the transition occurs.
Solution Approach 2:
The session state transitions dynamically from active to suspended and back to active, with the suspend/resume operations optimized to occur quickly. The brief suspension period is acceptable because it prevents data loss while enabling rapid reconnection, improving overall communication efficiency.
Data Source
AI summary
Aspects described herein relate to requesting suspending of a data session of a first when a device capable of communicating over multiple subscriptions switches from an active communication state if the first network to an active communication state in a second network. The device can also request resuming the data session based on switching back to active communication state with the first network.