Communication Device Channel Segmentation for Coordinated Transmission
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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 and frequency utilization efficiency deterioration due to interference from neighboring basic service sets, as existing technologies fail to address these issues effectively.
Innovation Solution
The proposed solution is defined by the appended independent claims, which involve a communication device and method that dynamically sets and manages separate frequency channels for both host and coordinated transmission, ensuring efficient utilization by avoiding overlap with adjacent basic service sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the same frequency channel is used for coordinated transmission by multiple access points, then coordinated transmission can be performed, but throughput deteriorates due to interference from adjacent basic service sets
Solution Approach 1:
The patent segments the frequency channel usage into two distinct sets: a first frequency channel group for coordinated transmission and a second frequency channel group for host basic service set communication. This segmentation allows coordinated transmission to occur without interfering with adjacent BSS operations, as each set operates on separate frequency channels. The communication device independently manages both sets, enabling coordinated transmission while avoiding throughput deterioration from interference.
2Loss of energy
If adjacent basic service sets operate on the same frequency channel, then frequency utilization efficiency improves, but communication cannot proceed during the other BSS's transmission period
Solution Approach 1:
The patent applies segmentation by dividing frequency channels into two separate groups: the first frequency channel group dedicated to coordinated transmission and the second frequency channel group dedicated to host BSS communication. This ensures that host BSS communication and coordinated transmission occur on different frequency channels, eliminating the conflict where one BSS cannot communicate during another BSS's transmission period while still allowing efficient frequency utilization through coordinated transmission.
3Loss of energy
If separate frequency channels are set for host and coordinated transmission, then frequency utilization efficiency improves, but device complexity increases
Solution Approach 1:
The patent implements multi-functionality by enabling the communication device to perform multiple functions: it manages both the first frequency channel group for coordinated transmission and the second frequency channel group for host BSS communication simultaneously. The device can dynamically switch between these frequency channel groups based on operational requirements, allowing a single device to handle multiple transmission modes without proportionally increasing complexity.
Solution Approach 2:
The patent introduces dynamic channel management where the communication device can dynamically select and switch between different frequency channel groups based on the operational mode required. The device dynamically adjusts which frequency channels are used for coordinated transmission versus host BSS communication, optimizing frequency utilization efficiency while managing complexity through adaptive rather than static channel allocation.
Data Source
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Figure 3A~3B
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.