Wireless Communication Devices Using Secondary Channels to Reduce Collisions
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Solution Overview
Problem
In wireless LAN systems, particularly in IEEE 802.11be, APs need to set their primary channels to the same channel for mutual transmission signal reception, leading to a high likelihood of signal collisions and loss of transmission opportunities.
Innovation Solution
Wireless communication devices determine their secondary channels as coordination recommendation channels, distinct from their primary channels, to facilitate coordination communication while minimizing signal collisions and transmission right losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If primary channels of APs are set to the same channel for coordination communication, then APs can receive mutual transmission signals, but signal collisions and loss of transmission opportunities increase
Solution Approach 1:
The patent introduces a new dimension for coordination communication by using secondary channels instead of primary channels. This dimensional separation allows coordination traffic to operate in a different channel dimension, avoiding conflicts with primary transmission opportunities while maintaining coordination reliability.
Solution Approach 2:
The patent segments the channel usage by dedicating secondary channels specifically for coordination communication between APs, while primary channels remain available for normal data transmission. This segmentation eliminates channel conflicts and allows simultaneous coordination and data transmission without mutual interference.
2Adaptability or versatility
If STAs connected to each AP set their primary channels to the same channel, then coordination is enabled, but transmission right acquisition opportunities are lost
Solution Approach 1:
The patent moves coordination communication to the secondary channel dimension, allowing STAs to maintain their primary channel configurations for normal transmission while enabling coordination functionality through secondary channels. This resolves the conflict between coordination adaptability and transmission timing.
Solution Approach 2:
The patent extracts the coordination communication function from the primary channel and relocates it to secondary channels. This extraction allows primary channels to be fully dedicated to data transmission without coordination overhead, eliminating transmission opportunity losses while preserving coordination capabilities.
3Reliability
If APs use the same primary channel for coordination, then mutual signal reception is achieved, but signal interference increases
Solution Approach 1:
The patent resolves signal interference by transitioning coordination communication to the secondary channel dimension. This dimensional separation ensures that coordination signals and data transmission signals operate in different channel dimensions, eliminating mutual interference while maintaining reliable signal reception for both purposes.
Solution Approach 2:
The patent segments channel functionality by assigning secondary channels exclusively for coordination communication and primary channels for data transmission. This segmentation physically separates coordination traffic from data traffic, eliminating signal interference between these two types of communication while maintaining reliable reception for each.
Data Source
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AI summary
The present technology relates to a wireless communication device and a method that make it possible to suppress signal collisions and a loss of an opportunity to acquire a transmission right. The wireless communication device transmits and receives signals to and from another wireless communication device, and determines a coordination recommendation channel to be recommended to the other wireless communication device in order to perform coordination communication. The present technology can be applied to wireless communication systems.