Client Tunnel Persistence for VoIP Latency Reduction
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Solution Overview
Problem
In communications networks, frequent tunnel termination and renegotiation for consecutive calls lead to unnecessary peak server resource consumption and increased latency, particularly in mobile VoIP applications where tunnel creation and termination processes are resource-intensive and latency-inducing.
Innovation Solution
Implementing client tunnel persistence, where a tunnel is kept in a latent state for a predefined period after termination, allowing subsequent calls to reuse the existing tunnel, thereby reducing the need for repeated tunnel creation and termination processes, and minimizing resource consumption and latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the tunnel is terminated immediately after call completion, then server resources are released promptly, but frequent tunnel creation and termination for consecutive calls causes peak server resource consumption and increased latency
Solution Approach 1:
The system performs preliminary action by keeping the tunnel in a persistent state after call completion instead of terminating it immediately. This preliminary maintenance of the tunnel infrastructure allows subsequent calls to reuse the existing tunnel without going through the full creation and termination cycle, thereby reducing peak resource consumption and call setup latency.
2Loss of time
If the tunnel is kept persistent for a predefined period, then subsequent calls can reuse the existing tunnel reducing latency, but memory and computational resources are consumed during the persistence period
Solution Approach 1:
The system applies dynamics by implementing a predefined persistence period that dynamically balances resource allocation. The tunnel remains active during this period to enable quick reuse for subsequent calls, reducing call setup latency. After the persistence period expires, the tunnel is terminated to free memory and computational resources, thus optimizing the trade-off between performance and resource consumption.
3Productivity
If tunnel creation and termination processes are repeated for each call, then server resources are freed for other uses, but the process is resource-intensive and causes latency
Solution Approach 1:
The system implements continuity of useful action by maintaining the tunnel in a persistent state during the predefined period after call completion. This continuous availability of the tunnel infrastructure eliminates the need for repeated creation and termination cycles, reducing computational resource usage and latency while ensuring the tunnel remains ready for immediate reuse by subsequent calls.
Data Source
AI summary
A client or user equipment (“UE”) that initiates a plurality of calls using encapsulated media, in response to a first tunnel creation request, from an application associated with a first call, initiates the first call by creating a first tunnel between the client and a server. The UE transmits the encapsulated media associated with the first call over the first tunnel. The UE, in response to a tunnel termination request, from the application, associated with a termination of the first call, waits for an expiration of a predefined persistence period. The UE, in response to a second tunnel creation request, from the application associated with a second call, before the expiration of the predefined persistence period, initiates the second call using the first tunnel. The UE then transmits the encapsulated media associated with the second call over the first tunnel.