AP STA Selection Under OBSS Interference for Stable Throughput
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Solution Overview
Problem
Wireless communication between an Access Point (AP) and a Station (STA) is susceptible to Overlap Basic Service Set (OBSS) interference, leading to decreased data transmission speed and stability due to improper selection of STAs with limited power, affecting throughput and transmission stability.
Innovation Solution
A method to determine maximum available transmission power for multiple STAs based on channel state information and OBSS interference signals, selecting the STA with the highest available power for data transmission, and using an idle channel determined through a detection mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AP selects to communicate with STAs whose power is limited very low due to OBSS interference, then the transmission stability is improved, but the data transmission speed significantly decreases
Solution Approach 1:
The patent dynamically adjusts the selection criteria for STAs based on real-time channel conditions and OBSS interference levels. Instead of statically selecting STAs with limited power, the system evaluates multiple factors including available transmission power, channel state information, and interference conditions to dynamically determine the optimal STA for communication, thereby balancing transmission stability and data speed
Solution Approach 2:
The patent changes the selection parameters from simply power-limited STAs to a comprehensive evaluation including maximum available transmission power, channel state information, and OBSS interference conditions. By changing the selection criteria parameters, the system identifies STAs that can maintain both stability and higher transmission speeds even in the presence of interference
2Reliability
If the AP communicates with STAs whose power is limited very low, then the impact of OBSS interference is reduced, but the throughput of the communication system significantly decreases
Solution Approach 1:
The system dynamically evaluates STA selection based on current throughput requirements and interference conditions. When OBSS interference is detected, the system dynamically adjusts which STAs to communicate with, selecting those that can maintain acceptable throughput levels while managing interference impact, rather than always selecting power-limited STAs
Solution Approach 2:
The patent changes the throughput optimization parameter from selecting power-limited STAs to selecting STAs with maximum available transmission power considering OBSS interference. This parameter change enables the system to achieve higher throughput by selecting STAs that can transmit at higher powers while still managing interference through proper channel selection and power management
3Productivity
If the AP determines maximum available transmission power for multiple STAs based on channel state information, then the optimal STA selection is improved, but the complexity of the system increases
Solution Approach 1:
The patent applies preliminary action by having STAs pre-report their channel state information and available transmission power to the AP before data transmission begins. This preliminary collection of information allows the AP to perform optimized STA selection without real-time complexity, as the evaluation data is already available from prior STA reports
Solution Approach 2:
STAs self-report their channel state information and transmission power capabilities to the AP, eliminating the need for the AP to actively query or measure each STA's capabilities. This self-service approach reduces system complexity by leveraging the STAs' own knowledge of their transmission conditions while enabling informed AP decision-making
Data Source
AI summary
Disclosed is a method for sending data and apparatus, a storage medium, a processor, and an Access Point (AP) terminal. The method for sending data includes: receiving an Overlap Basic Service Set (OBSS) interference signal; determining whether a data sending condition is satisfied according to the OBSS interference signal; determining a plurality of maximum available transmission power corresponding to a plurality of Stations (STAs) in a case where the data sending condition is satisfied; and controlling the sending of the data to a target STA, the target STA being a STA with a maximum of the maximum available transmission power corresponding to the plurality of STAs.