Edge PTT Server Synchronization for Low Latency
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Solution Overview
Problem
Current push-to-talk (PTT) platforms face challenges in providing low latency and efficient communication due to their reliance on centralized networks, which can lead to increased latency and congestion, especially in mobile edge computing environments.
Innovation Solution
The implementation of a system and method that synchronizes service information between central and edge PTT servers, allowing for localized processing of PTT calls and message arbitration, even when connectivity to the central server is unavailable, using edge computing to reduce latency and manage network congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If PTT services are hosted on centralized servers, then service management and control are simplified, but network latency and congestion increase
Solution Approach 1:
The patent segments the PTT service architecture into centralized control functions (service management, user authentication, policy control) and distributed edge execution functions (local message arbitration, data caching, PTT call processing). This segmentation allows simplified centralized management while achieving low-latency local processing through edge servers deployed at network edges, directly resolving the contradiction between management simplicity and network latency.
2Stability of the object's composition
If PTT calls are processed through centralized networks, then service consistency is maintained, but network congestion increases
Solution Approach 1:
The patent implements preliminary action by pre-caching PTT service data (user profiles, group information, service policies) at edge servers before they are needed for local processing. This allows edge servers to immediately handle PTT calls and messages locally without requiring real-time centralized network access, thereby maintaining service consistency while dramatically reducing network traffic volume and congestion.
3Reliability
If edge servers operate independently from central servers, then service continuity is improved, but system complexity increases
Solution Approach 1:
The patent introduces an intermediary synchronization mechanism that periodically exchanges service information between centralized and edge servers. This intermediary layer coordinates updates, user registrations, and service policy changes, enabling edge servers to operate independently with high service continuity while the synchronization mechanism manages the coordination complexity, preventing system architecture from becoming unmanageably complex.
4Stability of the object's composition
If service information is synchronized between central and edge servers, then data consistency is improved, but synchronization overhead increases
Solution Approach 1:
The patent implements periodic action through scheduled synchronization cycles where service information is exchanged between centralized and edge servers at predetermined intervals. This periodic synchronization maintains data consistency across the distributed architecture while minimizing synchronization overhead by only updating when necessary, rather than continuously, thereby reducing the time and resources consumed by synchronization operations.
Data Source
AI summary
In an embodiment, a method includes: synchronizing service information for a push-to-talk (PTT) client between a central PTT server and an first edge PTT server, the first edge PTT server and the PTT client being in a first network, the central PTT server being in a second network different from the first network; establishing a service session with the PTT client at the first edge PTT server in accordance with the service information, the service session used to conduct a PTT call with the PTT client; registering a first functionality for the PTT call at the first edge PTT server with the central PTT server; and performing the first functionality for the PTT call at the first edge PTT server.