Wireless QOS Management for Seamless Roaming
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Solution Overview
Problem
Current wireless communication systems face challenges in maintaining quality of service (QOS) during roaming in wireless networks, particularly for delay-sensitive applications like augmented reality and robotics.
Innovation Solution
The system enables the transfer of stream classification service (SCS) agreements between access points (APs) during roaming, ensuring seamless QOS management by transmitting relevant information associated with the SCS agreement across APs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the STA re-establishes SCS agreement with the second AP during roaming, then QOS can be maintained, but the handover time increases and latency increases
Solution Approach 1:
The first AP transfers the SCS agreement information to the second AP before the STA actually roams. This preliminary transfer of QOS configuration data allows the second AP to be ready to accept the STA immediately, eliminating the need for re-negotiation during the handover process and thus reducing handover time while maintaining QOS reliability.
2Productivity
If the STA performs multi-link operation with multiple APs, then throughput increases, but the complexity of managing SCS agreements across multiple links increases
Solution Approach 1:
The SCS agreement is segmented into individual link-level agreements. Each link between the STA and an AP can have its own SCS agreement independently managed. The processor maintains separate SCS agreements for each link, allowing the system to leverage multiple links for increased throughput while managing complexity through modular, link-specific QOS configurations rather than a monolithic approach.
Data Source
AI summary
A station (STA) in a wireless network that is configured to transfer an established stream classification service (SCS) agreement with an access point (AP) to a different AP while roaming, including transmitting a frame that causes the transfer to an AP, receiving a response from the AP regarding whether the transfer to the different AP has been accepted, declined, or conditionally accepted with a set of alternative parameters for the SCS agreement, and the STA seamlessly roaming to the different AP while maintaining the established SCS agreement for the network traffic and without having to establish a new SCS agreement.