Transfer Management Server for Seamless Service Session Handoff
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Solution Overview
Problem
Current methods for transferring services between terminals are complex for users, burdensome for service providers, insecure, and difficult to implement in environments where network management restricts gateway placement, especially when multiple terminals are connected to different networks.
Innovation Solution
A method that uses a transfer management server to record and manage session information correlations between terminals, allowing seamless service transfer by updating session IDs and terminal IDs, thereby simplifying the process and maintaining security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If service transferring function is incorporated into each service application, then service transfer can be achieved, but operation becomes extremely complicated for users and development burden increases
Solution Approach 1:
The patent introduces a terminal as an intermediary device that manages service transfer between multiple terminals. Instead of requiring users to manually execute transfer operations in each service application, the terminal automatically manages the transfer process by intercepting session information and redirecting service connections, thereby simplifying user operation while maintaining service transfer capability
Solution Approach 2:
The patent creates a universal service transfer mechanism that works across multiple different service applications through a single terminal interface. The terminal implements a general-purpose service transfer function that can handle various services (messaging, browsing, email, etc.) uniformly, eliminating the need for separate transfer operations in each application
2Reliability
If service transferring function is incorporated into each service application, then service transfer can be achieved, but development burden for service providers becomes large
Solution Approach 1:
The patent extracts the service transfer function from individual service applications and consolidates it into a separate terminal component. This allows service providers to implement service transfer once at the terminal level rather than having to incorporate it into each service application, significantly reducing development burden while maintaining transfer capability
Solution Approach 2:
The patent segments the service transfer functionality into a distinct module within the terminal, separate from service-specific applications. This modular approach allows the transfer mechanism to be developed, maintained, and updated independently from individual services, reducing overall development complexity
3Ease of operation
If session information is directly transferred between terminals, then service switching is enabled, but service security cannot be maintained
Solution Approach 1:
The patent introduces the terminal as a secure intermediary that mediates between the source and destination terminals during service transfer. The terminal intercepts session information from the source terminal, validates and processes it through security checks, then establishes a new secure connection to the destination terminal, preventing direct exposure of sensitive session data while enabling service switching
4Reliability
If a special gateway is provided between server and terminal for service transfer, then service transfer between terminals can be realized, but the method cannot be implemented when network is under communication service provider management
Solution Approach 1:
The patent implements service transfer functionality within the terminal itself, allowing the terminal to autonomously manage service transfer operations without requiring external gateway infrastructure. The terminal captures session information locally, processes transfer requests, and establishes connections independently, enabling service transfer in network environments where gateway deployment is restricted
Solution Approach 2:
Instead of placing the service transfer mechanism at the network infrastructure level (gateway between server and terminal), the patent inverts the approach by implementing the transfer function at the client level (within the terminal). This reversal allows service transfer to operate within the terminal's controlled environment, bypassing network management restrictions
Data Source
AI summary
A method makes possible the transfer independent services used on a certain terminal to another terminal and easy use of them. A service transferring method of transferring service being used at a transferring source terminal (TST) to a transferring destination terminal (TDT), in which information about correlation between a session ID which identifies a session between a service server which provides the service and the TST using the service and a terminal ID of the TST is stored in at least either one of the service server and a transfer management server (TMS), and either one of the TST and TDT transmits terminal IDs of the one terminal and the other terminal to the TMS to notify service transfer and upon receiving the notification of the service transfer, the information about correlation between the session ID and the terminal ID recorded in either the service server or the TMS updates.