Centralized SDN Controller for UC&C Traffic Management
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Solution Overview
Problem
Existing UC&C systems face challenges in dynamically managing network resources and ensuring Quality of Experience (QoE) due to static and non-synergistic Quality of Service (QoS) and Call Admission Control (CAC) policies, which fail to adapt to actual network conditions and business requirements, leading to potential congestion and QoE degradation.
Innovation Solution
A centralized control module that jointly manages network and application resources using Software Defined Network (SDN) technology, dynamically adjusting Call Admission Control parameters based on real-time network and application information, and enterprise business policies to optimize resource utilization and maintain QoE.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If static QoS and CAC policies are implemented independently at network and application layers, then each layer can be managed separately with simple control mechanisms, but the system cannot adapt dynamically to actual network conditions and business requirements leading to resource suboptimal utilization
Solution Approach 1:
The patent merges network-layer QoS control and application-layer CAC control into a unified centralized controller that manages both layers synergistically. The controller receives input from both network monitoring (traffic conditions, bandwidth availability) and application monitoring (business requirements, service levels), then coordinates control decisions across both layers to achieve optimal resource utilization while maintaining QoE.
Solution Approach 2:
The system implements feedback mechanisms where network monitoring data (actual traffic conditions, bandwidth utilization) and application monitoring data (business requirements, service level agreements) are continuously fed to the centralized controller. This feedback enables dynamic adjustment of QoS parameters and CAC decisions to adapt to changing network conditions and business needs in real-time.
2Adaptability or versatility
If bandwidth is statically allocated for UC&C applications, then network resource management is simplified, but the variable and dynamic bandwidth requirements of different communication modes cannot be met resulting in congestion and packet loss
Solution Approach 1:
The patent implements dynamic bandwidth allocation where the centralized controller continuously adjusts QoS parameters based on actual traffic conditions and business requirements. Instead of static bandwidth reservation, the system dynamically modifies traffic treatment policies to match the varying bandwidth demands of different UC&C communication modes (voice, video, messaging) while maintaining QoE stability through coordinated network and application layer control.
3Productivity
If separate QoS and CAC control methods are used without correlation, then implementation is simpler and more modular, but resource utilization is suboptimal and congestion cannot be prevented through coordinated management
Solution Approach 1:
The patent combines separate QoS and CAC control functions into a unified centralized controller that manages both network-layer traffic treatment and application-layer call admission decisions synergistically. This integration enables coordinated resource allocation across both layers, optimizing overall resource utilization efficiency while preventing congestion through holistic control rather than independent layer-by-layer management.
Data Source
AI summary
An apparatus for traffic management in a telecommunications network, wherein, through said telecommunications network (TLC), data are exchanged by means of at least one software application, includes: a first module configured for acquiring first traffic information (INFO1), at application level, relating to the data traffic exchanged through the at least one application; a second module configured for acquiring second traffic information (INFO2), at network level, relating to the data traffic exchanged through said telecommunications network (TLC); a control module configured for generating output signals (OUT) for managing resources of said telecommunications network (TLC) for the data traffic as a function of said first information (INFO1) and said second information (INFO2).