Distributed Access Groups for Dense Wireless LAN Collision Control
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Solution Overview
Problem
Existing wireless LAN technologies face challenges in providing high-efficiency and high-performance data transmission in high-density environments, with increased collision possibilities and reduced stability due to the presence of multiple terminals and access points.
Innovation Solution
A wireless communication method involving distributed access groups, where terminals are assigned to groups based on a distributed access group parameter, allowing them to transmit and receive data using different channels and perform backoff procedures during predetermined access periods, reducing collision likelihood and optimizing channel use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple terminals transmit data simultaneously in a high-density wireless environment, then data transmission speed increases, but collision probability increases and transmission reliability decreases
Solution Approach 1:
The patent segments the wireless medium access into distinct contention periods assigned to different terminals or terminal groups. Each terminal is allocated specific time slots or contention windows, dividing the previously unified contention space into multiple segmented access opportunities. This reduces simultaneous collisions while maintaining overall transmission throughput by ensuring orderly sequential access across the terminal population.
2Reliability
If terminals perform backoff procedures in a dense environment, then collision probability is reduced, but access time increases
Solution Approach 1:
The patent implements preliminary action by pre-calculating and distributing contention parameters (such as contention window sizes, minimum inter-frame spaces, and assigned contention periods) to terminals before actual data transmission begins. Terminals receive configured backoff parameters in advance through management frames, allowing them to perform optimized backoff procedures without excessive delays. This preliminary configuration enables terminals to jump directly into optimized contention slots rather than performing lengthy random backoffs, thus reducing access time while maintaining collision avoidance.
3Productivity
If distributed access groups are implemented, then resource utilization improves, but system complexity increases
Solution Approach 1:
The patent merges the functions of multiple access control mechanisms into a unified distributed access group framework. Instead of implementing separate complex protocols for different terminal types or scenarios, the invention combines contention parameter allocation, group-based access control, and collision avoidance mechanisms into a single integrated system managed through standardized management frames. This merging approach improves resource utilization by coordinating access across all terminals while keeping implementation complexity manageable through unified protocol handling.
Data Source
AI summary
The present invention relates to a wireless communication method for power saving and a wireless communication terminal using the same, and more particularly, to a wireless communication method for efficiently conducting data transmission/reception of each terminal in a high density environment and a wireless communication terminal using the same.To this end, the present invention provides a wireless communication method for a terminal including receiving a distributed access group parameter for data transmission/reception by a group unit, wherein the distributed access group parameter comprises information about a number of groups assigned to a corresponding BSS, obtaining group information about the terminal based on the distributed access group parameter, and performing data transmission based on the obtained group information, and a wireless communication terminal using the same.