MAC Protocol for Multi-Channel WLANs
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Solution Overview
Problem
In wireless local area networks (WLANs) with multi-channel MACs, the increased demands on the access point for controlling multiple channels lead to higher system complexity and costs due to increased overhead, which can impact performance and efficiency.
Innovation Solution
Implementing a method that allocates a plurality of code channels in a single frequency channel, with at least one contention-free period (CFP) and one contention period (CP) in another code channel, commencing concurrently, to manage medium access and reduce overhead, while maintaining control over the wireless medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the access point controls multiple channels in a multi-channel MAC, then medium access capability is improved, but system complexity and overhead increase
Solution Approach 1:
The patent segments the control function by designating a specific controller STA to manage particular channels, rather than requiring the AP to control all channels. This division of control responsibilities reduces the AP's complexity while maintaining multi-channel access capability across the network.
2Adaptability or versatility
If the access point controls multiple channels in a multi-channel MAC, then medium access capability is improved, but implementation cost increases
Solution Approach 1:
The patent enables non-AP STAs to autonomously control certain channels and perform medium access control functions without requiring AP intervention. This self-service approach reduces the AP's processing burden and allows for more cost-effective implementation of multi-channel MAC functionality.
3Reliability
If centralized control is implemented over multiple channels, then collision reduction is improved, but overhead increases
Solution Approach 1:
The patent segments the control function by designating a specific controller STA to manage particular channels, rather than requiring the AP to control all channels. This division of control responsibilities reduces the AP's complexity while maintaining multi-channel access capability across the network.
4Reliability
If centralized control is implemented over multiple channels, then collision reduction is improved, but system complexity increases
Solution Approach 1:
The patent enables non-AP STAs to autonomously control certain channels and perform medium access control functions without requiring AP intervention. This self-service approach reduces the AP's processing burden and allows for more cost-effective implementation of multi-channel MAC functionality.
Data Source
AI summary
A wireless system and method of wireless communication are described.