Session Transfer Between UEs via Network Node
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Solution Overview
Problem
In multi-device environments, users face challenges in transferring ongoing multimedia sessions between UEs within the same IMS subscription, particularly when devices are not recognizable by users and lack support for Non-Session Continuity (NON-SC) and non-SIM devices, leading to difficulties in managing and transferring sessions.
Innovation Solution
A method and device configuration that allow users to assign descriptive names and obtain information on UE capabilities and session status, enabling the transfer of ongoing communication sessions between UEs through a network node, independent of device type and access type, by requesting the network node to transfer sessions based on user indications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If proprietary configuration is used in UEs for session transfer, then session transfer between UEs is enabled, but device complexity increases and user operation becomes difficult when devices are not recognizable
Solution Approach 1:
The patent introduces a network node as an intermediary that provides a centralized service for session transfer. Instead of each UE needing complex proprietary configuration, the network node mediates the transfer process by managing the signaling and coordination between UEs, thereby simplifying the UE configuration while enabling easy session transfer operation.
2Ease of operation
If devices are not assigned recognizable names, then device identification is simplified, but user ability to distinguish and select devices for session transfer is lost
Solution Approach 1:
The system enables devices to present their own identifiable information (such as device names, types, and status) to the network node and to each other. Each UE serves itself by providing its own identification characteristics, allowing users to easily distinguish and select devices without requiring complex external identification systems.
3Adaptability or versatility
If support is provided only for SIM devices, then device management is simplified, but adaptability to diverse device types (Non-SIM, wearable, tablet) is reduced
Solution Approach 1:
The patent implements a universal session transfer service at the network node that can handle multiple device types (SIM-based UEs, Non-SIM devices, wearables, tablets) through a single unified mechanism. The network node provides multi-functional support by accommodating different device capabilities and identification methods without requiring separate management procedures for each device type.
4Adaptability or versatility
If session transfer is restricted to specific access types, then network control is simplified, but flexibility in handling diverse access methods (LTE, CS, Wi-Fi) is reduced
Solution Approach 1:
The network node implements dynamic session transfer capabilities that can adapt to different access types (LTE, Circuit Switched, Wi-Fi) based on real-time conditions and device requirements. The system dynamically selects the appropriate transfer mechanism and signaling procedure according to the current network state and device capabilities, providing flexibility without requiring complex static configuration for each access type.
Data Source
AI summary
A method performed for handling an ongoing communication session with a remote party in a communication network is provided. A user is associated with a set of User Equipments, UEs, in a single user subscription. The set of UEs includes at least a first UE and a second UE. The ongoing communication session with the remote party involves the first UE. For each respective UE out of the set of UEs, information is obtained. The information is related to the respective UE's name recognizable by the user, communication capabilities, and communication session status. A user indication is obtained. The user indication is based on the received information. The indication indicates to transfer the ongoing communication session with the remote party. According to the indication, a network node is requested to transfer the ongoing communication session from the first UE to the second UE.