Dynamic Call Routing in Media Server Networks
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Solution Overview
Problem
Existing mobile IP networks often experience variable quality of service (QoS) characteristics, leading to poor latency, jitter, and packet loss due to bandwidth limitations and resource constraints, which impede real-time communication performance.
Innovation Solution
A communication system with a network of media servers and a dynamic call routing mechanism that uses an algorithm to select media servers based on conditions such as geographic location, availability, load, and QoS measurements to optimize call routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If IP routers handle traffic on a first-come, first-served basis with fixed maximum capacity, then the network structure is simple and easy to implement, but latency increases and packet loss occurs when queues overflow
Solution Approach 1:
The patent implements dynamic QoS parameter adjustment where routers can modify traffic handling behavior based on current network conditions. The system dynamically changes routing parameters, queue management policies, and bandwidth allocation in response to real-time traffic patterns, transforming the static first-come-first-served model into an adaptive system that prioritizes real-time traffic when needed while maintaining simplicity of implementation.
2Device complexity
If IP routers use fixed maximum capacity with first-come, first-served handling, then the network configuration is simple, but packet loss increases when link load grows quickly and queues overflow
Solution Approach 1:
The patent employs QoS parameter changes to improve packet delivery reliability without significantly increasing network configuration complexity. The system modifies parameters such as bandwidth allocation, priority levels, and buffer management policies dynamically based on traffic type and network conditions. This allows the network to reliably deliver real-time traffic while maintaining a relatively simple overall configuration structure.
3Reliability
If dedicated bandwidth and controlled jitter are provided for real-time traffic, then quality of service improves, but network resource allocation becomes more complex
Solution Approach 1:
The patent segments network traffic into different classes (real-time, non-real-time, background) and applies differentiated QoS policies to each segment. This segmentation allows dedicated bandwidth and controlled jitter to be provided specifically for real-time traffic segments without requiring complex resource allocation across the entire network. Each traffic segment receives appropriate resources based on its requirements, simplifying overall network management while maintaining high QoS for critical traffic.
Data Source
AI summary
A communication system including one or more end points, each end point interconnected to a wireless network. The communication system also includes a media network system, the network system contains a registration server for registering device IDs of the end points in the communication system, a database for storing device IDs, one or more media servers for routing calls between end points and a signaling server for selecting one or more media servers to route a call between end points in the communication system based on an algorithm that evaluates one or more predetermined conditions.