Wireless LAN Channel Grouping for Coordinated Transmission Interference
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Solution Overview
Problem
In wireless communication systems, the use of coordinated transmission by multiple access points on the same frequency channel leads to throughput deterioration and reduced frequency utilization efficiency due to interference from adjacent basic service sets using the same frequency channel.
Innovation Solution
A communication device and method that dynamically control frequency channel groups and bandwidths, allowing separate frequency channels for host network communication and coordinated transmission, thereby avoiding interference and maintaining throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If coordinated transmission is performed using the same frequency channel by multiple access points, then data transmission capability is improved, but frequency utilization efficiency deteriorates due to interference from adjacent basic service sets
Solution Approach 1:
The frequency channel group is segmented into a first frequency channel group dedicated for coordinated transmission and a second frequency channel group for host network communication. This segmentation allows multiple access points to perform coordinated transmission on the first frequency channel group without interfering with the host network's communication on the second frequency channel group, thereby maintaining both data transmission capability and frequency utilization efficiency.
Solution Approach 2:
The patent introduces a new dimension of frequency channel management by creating separate frequency channel groups for different transmission modes. Instead of using a single frequency channel for both coordinated transmission and host network communication, the system transitions to a multi-dimensional frequency channel structure where the first frequency channel group handles coordinated transmission and the second frequency channel group handles host network communication, eliminating interference while preserving functionality.
2Adaptability or versatility
If the same frequency channel is used in adjacent basic service sets, then frequency resource utilization is improved, but throughput deteriorates due to communication conflicts
Solution Approach 1:
The frequency channel is segmented into distinct first and second frequency channel groups. The first frequency channel group is allocated for coordinated transmission operations while the second frequency channel group is reserved for host network communication. This segmentation enables adjacent basic service sets to utilize frequency resources efficiently without causing throughput deterioration, as each frequency channel group operates independently without interference.
Solution Approach 2:
Different quality characteristics are assigned to different frequency channel groups. The first frequency channel group is optimized for coordinated transmission with appropriate bandwidth allocation, while the second frequency channel group is optimized for host network communication. This local quality differentiation ensures that each frequency channel group operates at optimal performance levels for its specific function, maintaining both high frequency resource utilization and throughput.
Data Source
AI summary
The present technology relates to a communication device and a communication method capable of curbing deterioration of frequency utilization efficiency. A communication device including a control unit configured to set a first frequency channel group used at the time of simultaneously transmitting data in cooperation with another communication device constituting another network, to set a second frequency channel group used for communication in a host network, and to dynamically control bandwidths of frequency bands in the first frequency channel group and the second frequency channel group is provided. The present technology can be applied to, for example, a wireless LAN system.