WLAN Cloud Control Plane Separation for QoS
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Solution Overview
Problem
Current WLAN systems lack flexibility in configuration and performance due to the non-separation of control and data planes, making it difficult to adapt to changing network conditions and ensuring Quality of Service (QoS).
Innovation Solution
A wireless local area network transmission control method and system that separates the control plane from the data plane by using a cloud control device to generate and send configuration information to network devices, including control plane and data plane forwarding rules, allowing for dynamic configuration and prioritization of signaling and data traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If policy configuration is performed to each network device in the system, then the network device can perform processing and forwarding according to the configured policy, but any change cannot be made after the configuration which reduces flexibility
Solution Approach 1:
The patent segments the forwarding plane into control plane and data plane, with control plane handling signaling and data plane handling service data. This segmentation allows independent configuration and management of each plane, enabling flexible updates to control plane policies without affecting data plane operations, thus resolving the contradiction between reliable policy execution and configuration flexibility
Solution Approach 2:
The patent introduces a control device as an intermediary between network devices and policy management. The control device generates, manages, and distributes forwarding policies to network devices, enabling centralized control and flexible policy updates without requiring direct reconfiguration of individual network devices, thereby maintaining both execution reliability and configuration adaptability
2Device complexity
If control plane and data plane are not separated, then the network device can perform unified processing, but the forwarding of control signaling is not effective which reduces system performance
Solution Approach 1:
The patent divides the forwarding plane into control plane (for control signaling) and data plane (for service data). This segmentation enables specialized processing paths for control signaling, improving forwarding efficiency and effectiveness while maintaining relatively simple device structures through standardized plane architectures
Solution Approach 2:
The patent applies different processing qualities to different types of data: control plane data receives priority handling with specific forwarding rules, while data plane data follows standard forwarding procedures. This local quality differentiation optimizes control signaling forwarding efficiency without significantly increasing overall device complexity
3Adaptability or versatility
If configuration changes are made to adapt to changing network conditions, then the system can respond to new requirements, but hardware changes may be required which increases deployment time and cost
Solution Approach 1:
The patent implements dynamic policy configuration where the control device can generate and update forwarding policies based on changing network conditions without requiring hardware modifications. Network devices receive updated configuration information through the control plane, enabling flexible adaptation to new requirements while maintaining existing hardware infrastructure, thus improving both adaptability and deployment ease
Solution Approach 2:
The patent enables configuration changes through parameter updates in the control plane policies rather than hardware modifications. The control device adjusts forwarding rules, priorities, and other parameters dynamically, allowing the system to adapt to changing network conditions without physical hardware changes, thereby reducing deployment time and cost while maintaining high adaptability
Data Source
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AI summary
Embodiments of the present invention provide a wireless local area network (WLAN) transmission control method, a device and a system. The WLAN transmission control method includes: receiving, by a WLAN device, configuration information sent by a cloud control device, where the configuration information includes a control plane forwarding rule and a data plane forwarding rule (A10); performing, by the WLAN device, configuration of a control plane network algorithm according to the control plane forwarding rule, and performing configuration of a data plane network algorithm according to the data plane forwarding rule (A20); sending, by the WLAN device, a received control signaling according to the control plane network algorithm, and sending received service data according to the data plane network algorithm (A30). By applying the present invention, rapid deployment of configuration and separation of the control plane from the data plane are achieved, thereby improving the performance of the WLAN system.