Session Transfer via Terminal Proximity Detection
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Solution Overview
Problem
Current solutions for session transfer between terminal devices are cumbersome and require user interaction, lacking transparency and efficiency, especially when switching between mobile and fixed terminals or involving multiple users.
Innovation Solution
A system comprising a first terminal device, a second terminal device, and a session control server that allows session transfer by initiating a request upon physical contact or proximity, with the session control server managing the transfer of sessions between different access networks and applications without user intervention, using an interface to receive requests and instruct intermediary nodes for seamless service changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual session transfer between terminals is implemented, then session continuity is maintained, but user interaction complexity and operation time increase
Solution Approach 1:
The system enables automatic session transfer by detecting proximity between terminals and executing transfer logic without user intervention. The server autonomously manages session state transitions, terminal identification, and service re-establishment, allowing the system to serve itself rather than requiring manual user operations for each transfer scenario
Solution Approach 2:
The system pre-establishes session states and terminal capabilities before transfer is needed. Session information is maintained in ready-state on the server, and terminal capabilities are pre-profiled, enabling immediate transfer execution when proximity is detected, eliminating the need for users to manually configure or initiate transfer procedures
2Ease of operation
If automatic session transfer is implemented, then ease of operation improves, but system complexity increases
Solution Approach 1:
The server acts as an intermediary between terminals, managing the complexity of session state transitions, capability matching, and transfer coordination. Rather than requiring complex peer-to-peer negotiation between terminals, the server centralizes the transfer logic, simplifying the overall system architecture while enabling automatic transfer functionality
Solution Approach 2:
The server implements a universal session management mechanism that handles multiple transfer scenarios (mobile-to-fixed, fixed-to-mobile, terminal switching) through a single automated framework. This multi-functional approach consolidates what would otherwise require separate complex systems for each transfer type, reducing overall system complexity
3Adaptability or versatility
If session transfer between different access networks is enabled, then adaptability improves, but service quality maintenance becomes more difficult
Solution Approach 1:
The system continuously monitors service quality parameters during transfer operations and uses this feedback to adjust transfer decisions and optimize service delivery. Quality metrics are measured before, during, and after transfer, allowing the system to learn from each transfer event and improve subsequent transfers across different network conditions and access types
Solution Approach 2:
The system dynamically adjusts session parameters based on the target terminal capabilities and network conditions. When transferring to a terminal with different capabilities (e.g., fixed vs mobile), the system modifies service parameters such as bandwidth allocation, codec selection, and quality thresholds to maintain optimal service quality adapted to the new context
Data Source
Figure 1a~1b
Figure 1c~2
Figure 3a~3b
AI summary
The present invention relates to a system comprising a first terminal device (101, 103; 301), a second terminal device (102, 104; 303) and a session control server (106; 211; 306). The first terminal device (101, 103; 301) comprises means for establishing a first session (107; 308) over a first access network (105; 302) and the session control server further (106; 211; 306) comprises an interface for receiving a request (109, 111; 309) from the first terminal device (101, 103; 301) or the second terminal device (102, 104; 303), means for establishing a second session (112, 113; 311) with the second device (102, 104; 303) over the first access network (105; 302) or a second access network (304) and means for terminating the first session (107; 308). The means for terminating the first session (107; 308) and/or the means for establishing the second session (112, 113; 311) are coupled to the interface and responsive to the request (109, 111; 309). The first terminal device (101, 103; 301) and/or the second terminal device (102, 104; 303) are adapted to initiate a request (109, 111; 309) upon touch (108, 110; 310) there between.