Wireless Communication Channel Segmentation for Small-Data Efficiency
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Solution Overview
Problem
Existing wireless LAN systems under IEEE802.11 fail to enhance speed and improve frequency utilization efficiency during small-capacity data transmission, as they require the use of a specific primary channel, leading to prolonged transmission times and underutilization of non-primary channels.
Innovation Solution
A communication apparatus and method that allows data transmission using solely non-primary channels, with the base station designating a transmission scheme of higher power or lower data rate for wireless terminals using these channels based on interference asymmetry, enabling simultaneous transmission and improving frequency utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a specific primary channel is required for data transmission in IEEE802.11 wireless LAN systems, then channel bonding and MIMO can enhance transmission speed, but frequency utilization efficiency deteriorates during small-capacity data transmission
Solution Approach 1:
The patent segments the channel usage by allowing different transmission schemes for different channel types. Specifically, it designates a first transmission scheme for channels including a primary channel and a second transmission scheme for channels using only non-primary channels. This segmentation enables optimized transmission for each channel type, improving overall frequency utilization while maintaining transmission speed.
Solution Approach 2:
The patent applies local quality by treating primary channels and non-primary channels differently in terms of transmission schemes. The base station designates specific transmission parameters (such as data rate and transmission power) tailored to each channel type, allowing optimal performance for each local channel condition rather than using a uniform approach.
2Speed
If channel bonding is used to combine adjacent channels for higher bandwidth communication, then transmission speed increases, but transmission time for small-capacity data increases due to required primary channel usage
Solution Approach 1:
The patent introduces dynamic transmission scheme selection based on the channel type. The base station dynamically designates either a first transmission scheme (for primary channel-based communication) or a second transmission scheme (for non-primary channel-only communication). This dynamic adaptation allows the system to optimize transmission time based on actual channel conditions and data capacity requirements.
3Productivity
If non-primary channels are used for data transmission, then frequency utilization improves, but interference asymmetry requires different transmission power and data rate settings
Solution Approach 1:
The patent applies parameter changes by adjusting transmission parameters (data rate and transmission power) based on the channel type. For non-primary channels, the base station designates a second transmission scheme with specific parameter settings that account for interference asymmetry. This allows the system to optimize frequency utilization while managing the added complexity through standardized parameter adjustments.
Data Source
AI summary
A communication apparatus and a communication method for performing wireless data transmission using multiple channels are provided. The communication apparatus operating as a base station includes: a communication section that transmits and receives a wireless signal; and a control section that controls a channel used by a subordinate wireless terminal. The control section designates a first transmission scheme to a first wireless terminal that uses a specific primary channel, and designates a second transmission scheme different from the first transmission scheme to a second wireless terminal that uses a non-primary channel that does not include the primary channel. The second transmission scheme has a lower data rate or higher transmission power than that of the first transmission scheme.