Relay Device AID Allocation for WLAN Transmission Distance
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Solution Overview
Problem
The efficiency of wireless local area network (WLAN) systems deteriorates as the distance between devices increases, limiting data transmission rates and overall system throughput.
Innovation Solution
Implementing a method that uses a relay device to form a relay-basic service set (R-BSS) associated with a master access point, allowing for efficient data transmission by allocating unique association identifier (AID) resources and managing address fields in data frames to optimize communication between the master access point and end terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If a relay device is introduced to extend service area, then transmission distance is improved, but device complexity increases
Solution Approach 1:
A relay device is introduced as an intermediary component between the access point and end terminals. The relay device receives data frames from the access point, processes them, and forwards them to the intended end terminal. This intermediary structure enables extended transmission distance by creating a multi-hop communication path, while the relay device's standardized processing functions keep the added complexity manageable.
2Productivity
If unique AID resources are allocated to R-BSS, then communication efficiency is improved, but resource management complexity increases
Solution Approach 1:
The AID resource space is segmented into distinct ranges for M-BSS and R-BSS. The access point allocates a specific AID range to the relay device, and the relay device further allocates AIDs within its assigned range to end terminals in R-BSS. This segmentation enables efficient communication by providing unique identification for each device while managing resource complexity through hierarchical allocation rather than centralized management of all AIDs.
Solution Approach 2:
The access point performs preliminary allocation of AID resources to the relay device before the relay device serves end terminals. This preliminary action establishes the foundation for subsequent efficient communication, as the relay device already has its designated AID range configured and ready for use when end terminals join the R-BSS.
3Productivity
If data frame address fields are optimized, then transmission efficiency is improved, but processing complexity increases
Solution Approach 1:
The address fields in data frames are optimized with local quality by setting the Type field to indicate relayed frames and appropriately configuring Destination Address, Source Address, and BSSID fields based on the specific relayed communication scenario. This localized optimization of address field characteristics improves transmission efficiency by enabling proper frame routing and identification while keeping processing complexity manageable through standardized field configuration rules.
Data Source
AI summary
Disclosed are a method and a device for transmitting data in a WLAN system. The method for transmitting data comprising the steps of: assigning a relay device an R-BSS AID resource for being allocated to a terminal connected an R-BSS from a main access point; and allocating, by the relay device, an AID to the terminal connected to the R-BSS within the R-BSS AID resource.