Dynamic Channel Occupancy Duration Adjustment in WLAN Stations
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Solution Overview
Problem
In WLAN systems, the fixed maximum duration of channel occupancy leads to inefficient resource utilization, as stations either waste resources by reserving channels for too long when they are busy or fail to send all data in a single reservation when channels are free, increasing competition complexity.
Innovation Solution
A method and device that dynamically adjust the maximum duration of channel occupancy based on the busy/free state of the channel, increasing it when free and reducing it when busy, to optimize resource utilization and reduce competition complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the transmitting station uses a fixed maximum duration of channel occupancy, then the channel reservation is simple to implement, but the channel resource utilization is low
Solution Approach 1:
The patent implements dynamic adjustment of the maximum duration of channel occupancy based on channel state detection. When the channel is detected to be in a busy state, the maximum duration is reduced to avoid resource waste. When the channel is in a free state, the maximum duration is increased to allow more data to be sent in one reservation, reducing competition frequency. This dynamic mechanism resolves the contradiction between simple implementation and high resource utilization.
Solution Approach 2:
The patent changes the parameter of maximum channel occupancy duration based on channel conditions. By detecting channel busy/free state and adjusting the maximum duration parameter accordingly, the system achieves better resource utilization without excessive complexity. The parameter adjustment is triggered by channel state detection results.
2Productivity
If the transmitting station reserves the channel for the maximum duration, then more data can be sent in one reservation, but channel resources are wasted when the channel is busy
Solution Approach 1:
The patent adjusts the maximum duration parameter based on channel state. When channel is busy, the duration is reduced to prevent resource waste. When channel is free, the duration is increased to improve transmission efficiency by sending more data in one reservation. This dynamic parameter adjustment resolves the contradiction between productivity and resource waste.
3Device complexity
If the transmitting station increases the maximum duration of channel occupancy, then fewer competitions are needed, but the complexity of channel management increases
Solution Approach 1:
The patent uses dynamic adjustment of maximum duration based on channel state detection. The system detects channel busy/free state and adjusts the maximum duration accordingly, achieving fewer competitions when channel is free without excessive complexity. The dynamic mechanism adapts to conditions rather than using a fixed increased duration.
Solution Approach 2:
The patent implements a feedback mechanism where the transmitting station detects channel state and uses this information to adjust the maximum duration for subsequent reservations. This feedback loop allows the system to reduce competition frequency when conditions permit while maintaining manageable complexity through condition-based adjustments.
Data Source
AI summary
Provided are a method and device for sending information. The method for sending information of the present invention comprises: before a sending station sends data, detecting a busy or idle condition of a channel; if the channel is in an idle state, increasing, by the sending station, the maximum time length for occupying the channel, and sending data, wherein the time length for occupying the channel when the data is sent is less than or equal to the increased maximum time length; and if the channel is in a busy state, reducing, by the sending station, the maximum time length for occupying the channel, and sending data, wherein the time length for occupying the channel when the data is sent is less than or equal to the reduced maximum time length.