Wireless Repeater MAC Address Mapping for STA Accounting
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Solution Overview
Problem
Existing WLAN Repeaters cannot perform unified authentication and accounting based on MAC addresses, especially in enterprise-level WLANs with AAA authentication and accounting systems, as they only account for the WLAN Client MAC address and not individual STA MAC addresses.
Innovation Solution
A wireless repeating device synchronizes network connection information from an upstream AP to a downstream WLAN AP interface, establishes a mapping relationship between downstream STA MAC addresses and upstream WLAN Client interfaces, and manages data forwarding based on this mapping to enable separate accounting and authentication for each STA MAC address, allowing AAA authentication or accounting parties to perform actions on each STA MAC address individually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the existing WLAN Repeater replaces the STA MAC address with the Repeater's own MAC address, then the Repeater can extend WIFI signal coverage, but the authentication and accounting system cannot perform separate accounting for each STA MAC address
Solution Approach 1:
The patent introduces a mapping table as an intermediary data structure that stores the correspondence between downstream STA MAC addresses and upstream WLAN Client MAC addresses. This mapping table acts as a mediator that allows the authentication and accounting system to track individual STA MAC addresses while the Repeater performs MAC address replacement for signal extension, thus resolving the contradiction between coverage extension and information preservation
Solution Approach 2:
The patent segments the MAC address handling into two distinct layers: the downstream WLAN AP interface layer where original STA MAC addresses are preserved and tracked, and the upstream WLAN Client interface layer where the Repeater's MAC address is used for signal extension. This segmentation allows simultaneous achievement of both coverage extension and individual STA accounting
2Device complexity
If the WLAN Repeater uses a single MAC address for all connected STAs, then the device complexity is reduced, but the ability to perform unified authentication and accounting for each STA is lost
Solution Approach 1:
The patent implements dynamic MAC address mapping where the mapping table is automatically created, updated, and maintained based on real-time connection status of STAs. When STAs connect or disconnect, the mapping table dynamically adjusts accordingly, allowing the system to adapt to changing network conditions while maintaining both simplicity and authentication capability
Solution Approach 2:
The patent performs preliminary establishment of the mapping table structure and prepares the data structures needed for MAC address correspondence before actual authentication and accounting operations occur. This preliminary preparation enables the system to handle individual STA accounting without increasing operational complexity during runtime
Data Source
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AI summary
The present invention is applicable to the field of communications technologies, and provides a repeating method of a wireless repeating device and a wireless repeating device. The method includes the following steps: synchronizing network connection information of an upstream AP to a downstream WLAN AP interface of the wireless repeating device; obtaining, according to the downstream WLAN AP interface corresponding to the synchronized upstream AP, downstream wireless STA MAC address information, and establishing an upstream WLAN Client interface which is in a mapping relationship with an STA MAC address; and performing, according to the mapping relationship between the STA MAC address and the established upstream WLAN Client interface, management on data forwarded between the upstream AP and a downstream wireless STA.