Wireless Channel Reaccess Using Interference-Adaptive STA Parameters
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Solution Overview
Problem
Existing wireless communication systems face issues with high uplink and downlink transmission rates leading to reduced antijamming capability, resulting in transmission failures, retransmissions, and increased bandwidth reduction and delay, which negatively impact cloud video applications with poor image quality and non-smooth operation.
Innovation Solution
A method and apparatus for determining interference information of a target channel, disconnecting from the current channel, and accessing a new channel with a selected network access parameter group to optimize network performance under interference conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the STA uses the highest transmission rate parameters (supreme capacity), then the transmission rate is improved, but the antijamming capability deteriorates leading to transmission failures
Solution Approach 1:
The patent implements dynamic adjustment of network access parameters based on real-time channel interference detection. The STA continuously monitors interference levels and adapts transmission parameters (MCS level, bandwidth, aggregation depth) accordingly, transitioning from static supreme capacity configuration to dynamic parameter optimization that balances transmission rate and antijamming capability.
Solution Approach 2:
The patent changes physical transmission parameters (MCS modulation level, bandwidth, A-MPDU aggregation depth, spatial flow quantity) based on detected interference conditions. When interference is detected, the system adjusts these parameters to reduce transmission rate but improve antijamming capability, thereby resolving the contradiction between speed and reliability.
2Reliability
If retransmission is performed due to transmission failure, then the transmission reliability is improved, but the bandwidth availability deteriorates and transmission delay increases
Solution Approach 1:
The patent performs preliminary detection of channel interference before transmission and proactively adjusts parameters to prevent transmission failures. By detecting interference conditions in advance and adapting parameters beforehand, the system avoids transmission failures that would require retransmission, thereby maintaining reliability without incurring additional delay.
Solution Approach 2:
The patent implements a feedback mechanism where the STA detects channel interference, evaluates transmission conditions, and adjusts parameters based on this feedback. This closed-loop control prevents transmission failures by adapting to channel conditions, eliminating the need for retransmission and avoiding associated bandwidth loss and delay.
3Productivity
If the STA uses supreme capacity parameters (high bandwidth, large aggregation depth), then the productivity is improved, but the system becomes more sensitive to interference
Solution Approach 1:
The patent dynamically adjusts bandwidth utilization and aggregation depth based on interference conditions. Instead of continuously operating at supreme capacity, the system adapts these parameters in real-time, maintaining high productivity when channel conditions are good while reducing interference sensitivity when interference is detected.
Solution Approach 2:
The patent changes key transmission parameters including bandwidth, A-MPDU aggregation depth, and MCS level based on detected interference. When interference is present, the system reduces these parameters to lower interference sensitivity while maintaining acceptable productivity, thereby resolving the contradiction between bandwidth utilization and interference sensitivity.
Data Source
AI summary
This application provides a method for accessing a wireless network performed by an electronic device acting as a station (STA). The method includes: determining interference information of a target channel, the target channel being a channel currently connected between the STA and an access point (AP); determining a target network access parameter group corresponding to the interference information; disconnecting the target channel between the STA and the AP; and accessing the AP via a new channel established between the STA and the AP according to the target network access parameter group.