Wi-Fi Access Point Selection for Seamless FTTR Roaming
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Solution Overview
Problem
Existing Wi-Fi networks in residential environments face challenges in seamlessly integrating seamless Wi-Fi roaming with high throughput due to insufficient coverage and limited backhaul bandwidth, especially in fiber to the room (FTTR) architectures.
Innovation Solution
A controller is used to select one or more access points based on communication performance parameters such as RSSI and load information to provide a data transmission service, ensuring optimal network access and data transmission modes for stations, thereby improving user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple access points are used to expand Wi-Fi coverage in FTTR architecture, then network coverage is improved, but seamless roaming and high throughput cannot coexist
Solution Approach 1:
The patent applies preliminary action by having access points forward association information about stations to neighboring access points before the station actually roams. This advance preparation allows the target access point to be ready to receive and process the station's association request immediately, eliminating roaming delays and achieving seamless transitions across multiple access points in the FTTR network
2Productivity
If multiple access points provide data transmission service simultaneously, then throughput is improved, but conflicts in data transmission occur
Solution Approach 1:
The patent implements feedback mechanisms where access points monitor transmission status and station responses. When conflicts are detected or transmission failures occur, the system uses feedback information to adjust transmission strategies, select alternative access points, or modify transmission parameters, thereby maintaining high throughput while resolving conflicts in multi-access point environments
3Reliability
If access points with high signal strength are selected for data transmission, then communication quality is improved, but access point load may increase
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the selection criteria for access points based on real-time conditions. The system considers multiple parameters including signal strength (RSSI), access point load, and transmission success rates, and changes the weightings and thresholds of these parameters adaptively. This allows the system to balance communication quality with access point load distribution, preventing any single access point from becoming overloaded while maintaining reliable connections
Data Source
AI summary
This application relates to the field of communication technologies, and specifically, to a data transmission method and apparatus. One example method includes: receiving, by a controller of a wireless network that comprises the controller and a plurality of access points, network online information of a station from a first access point of the plurality of access points; and sending, by the controller, the network online information to a second access point of the plurality of access points.