Session Transition Between Communication Terminals
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Solution Overview
Problem
Conventional wireless communication systems face inefficiencies in managing client application sessions, particularly when transitioning between primary and secondary communication terminals, leading to increased overhead and potential system performance degradation due to sequential unicast operations and limited bandwidth utilization in multicast and broadcast communications.
Innovation Solution
Implementing a mechanism where secondary communication terminals can selectively transition client application sessions to primary terminals over a local wireless connection, allowing for seamless handover based on user input or automatic detection, thereby optimizing bandwidth usage and reducing overhead by leveraging the higher-quality user interface environment of the primary terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sequential unicast operations are used for session transition, then session management can be achieved, but overhead increases and system performance degrades
Solution Approach 1:
The patent combines multiple unicast session transitions into a single multicast session transition. Instead of sequentially transitioning sessions from each terminal individually via unicast operations, the system uses a single multicast message to coordinate the transition across multiple terminals simultaneously, reducing signaling overhead and improving efficiency.
Solution Approach 2:
The patent introduces a universal multicast mechanism that can handle session transitions for multiple terminals simultaneously. The multicast session transition message serves multiple functions: notifying all terminals of the transition, coordinating handover timing, and reducing individual terminal processing overhead, making the system more efficient for multi-terminal scenarios.
2Productivity
If bandwidth is allocated for multicast and broadcast communications, then concurrent data transmission to multiple terminals is enabled, but bandwidth utilization is limited
Solution Approach 1:
The patent dynamically adjusts the use of multicast versus unicast based on the number of active terminals and session requirements. When multiple terminals are active, multicast is utilized to maximize bandwidth efficiency. When fewer terminals are active or specific individualized communication is needed, the system transitions to unicast, optimizing bandwidth utilization dynamically rather than statically allocating resources.
3Manufacturing precision
If a secondary terminal transitions a session to a primary terminal, then user interface quality improves, but transition complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where terminals automatically determine their own role (primary or secondary) based on user interface quality metrics. The secondary terminal autonomously initiates session transition when it detects that the primary terminal offers superior UI capabilities, eliminating the need for complex centralized coordination and reducing overall system complexity while maintaining high UI quality.
Data Source
AI summary
In an embodiment, a secondary communication terminal (CT) executes a client application to engage in a client application session (CAS), the secondary CT configured to connect to a primary CT over a local wireless connection (LWC), the primary CT having a higher-quality user interface environment as compared to the secondary CT. The secondary CT establishes the LWC with the primary CT during the CAS and, responsive to the establishment, negotiates with the primary CT to selectively transition the CAS to the primary CT. Alternatively, the primary CT executes the client application before the establishment and negotiates with the secondary CT to selectively transition the CAS to the secondary CT. In another embodiment, the primary CT hosts the CAS while the LWC is established with the secondary CT. Then, upon disconnection of the LWC, the secondary AT selectively transitions the CAS to the secondary CT.