Wireless Access Controller QoS Port Mapping
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Solution Overview
Problem
Current service provider networks lack an end-to-end Quality of Service (QoS) mechanism to provide enhanced QoS services on a per subscriber basis, especially in centralized models where tunneling between wireless access points and access controllers obscures traffic visibility, making it difficult to implement per subscriber QoS.
Innovation Solution
The system creates additional ports and channels for subscribers with enhanced QoS privileges, allowing the wireless access controller to dynamically initiate service flows based on QoS privileges by associating unique port numbers with traffic flows, thereby distinguishing between different subscriber traffic and enabling per subscriber QoS services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If tunneling is used between wireless access point and access controller, then network management and control is simplified, but QoS visibility of subscriber traffic is lost
Solution Approach 1:
The patent applies preliminary action by establishing service flow templates and QoS policies in advance before actual traffic flows occur. The access controller pre-configures QoS parameters, bandwidth allocations, and service flow templates that will be applied when subscribers connect, ensuring QoS visibility is maintained from the outset of traffic flow without requiring complex real-time analysis
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of service flow templates and QoS policy frameworks that bridge the tunneling architecture and QoS requirements. These templates act as intermediaries that carry QoS information through the tunnel, allowing the access controller to maintain QoS visibility and control without breaking the tunneling structure
2Adaptability or versatility
If per subscriber QoS services are implemented, then service differentiation is improved, but device complexity and implementation difficulty increase
Solution Approach 1:
The patent applies segmentation by dividing QoS implementation into separate, manageable components: service flow templates, QoS policies, traffic flow identification rules, and enforcement mechanisms. This segmentation allows each component to be configured and managed independently, reducing overall implementation complexity while enabling detailed per-subscriber service differentiation
Solution Approach 2:
The patent utilizes parameter changes by allowing dynamic adjustment of QoS parameters such as bandwidth allocations, priority levels, and service flow templates based on subscriber profiles and service requirements. This enables flexible service differentiation through parameter modification rather than requiring complex structural changes to the network architecture
Data Source
AI summary
A system includes an interface operable to receive a request to initiate a first connection between a subscriber and a wireless access point using a first network protocol. The system further includes a processor operable to determine whether the subscriber has enhanced Quality of Service (QoS) privileges. In response to determining the subscriber has enhanced QoS privileges, the processor is operable to associate a first port number with traffic associated with the subscriber on a second connection using a second network protocol. In response to determining the subscriber does not have enhanced QoS privileges, the processor is operable to associate a second port number with traffic associated with the subscriber on the second connection using the second network protocol.