Fast AP Transition Pre-Negotiation for TWT and Link Mapping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transitioning a station from a serving access point to a target access point, leading to delays and inefficiencies in data transmission.
Innovation Solution
A negotiation method is introduced using Fast Basic Service Set Transition Protocol and Fast Transition Resource Request Protocol, involving pre-negotiation of information such as target wake time, restricted wake time, and traffic identifier-to-link mapping to facilitate seamless transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional access point transition methods are used, then the transition process is simple, but the transition time is long and data transmission efficiency is reduced
Solution Approach 1:
The patent applies preliminary action by performing resource negotiation between the station and target access point before the actual transition occurs. The station and target access point exchange capability information and negotiate resources (TWT parameters, R-TWT parameters, TID-to-link mapping) in advance, so that when transition happens, the configuration is already prepared and can be applied immediately, eliminating the need for post-transition negotiation and reducing transition time
Solution Approach 2:
The patent uses the current access point as an intermediary to facilitate the pre-negotiation between the station and target access point. The station sends resource negotiation requests through the current access point, which forwards them to the target access point, and receives the negotiated parameters back through the same path. This intermediary mechanism enables seamless pre-transition negotiation without requiring direct station-target access point communication infrastructure
2Productivity
If fast transition protocols are implemented, then transition speed improves, but the negotiation process becomes more complex
Solution Approach 1:
The patent merges multiple negotiation processes into a single unified pre-transition negotiation. Instead of separately negotiating TWT parameters, R-TWT parameters, and TID-to-link mapping after transition, all these resource allocations are negotiated together in one exchange of capability information and parameter messages before transition, reducing both time and complexity
Solution Approach 2:
The patent changes the timing parameter of resource negotiation from post-transition to pre-transition. By negotiating all resource parameters (TWT, R-TWT, TID-to-link mapping) before the actual access point switch, the system transforms a complex post-transition multi-step negotiation into a simpler pre-transition single-step negotiation, improving productivity without proportionally increasing complexity
Data Source
AI summary
Provided is a negotiation method for fast access point transition. The method is performed by a station, and includes: pre-negotiating first information with a target access point, wherein the first information comprises at least one of a target wake time (TWT), a restricted TWT (R-TWT), or a traffic identifier-to-link mapping.