Reconfiguration signaling for seamless roaming

By transmitting request and response messages with link operation parameters, the method facilitates seamless roaming in WLANs, reducing latency and improving network efficiency.

WO2025075718A1 Publication Date: 2025-04-10QUALCOMM INC
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Patent Information

Application Number
PCT/US2024/042149
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-10-03
Filing Date
2024-08-13
Publication Date
2025-04-10

AI Technical Summary

Technical Problem

In wireless local area networks (WLANs), seamless roaming between access points (APs) is hindered by the need for a wireless station (STA) to wait for context information from the target AP, leading to increased latency and signaling overhead.

Method used

The method involves transmitting a request message to transition a STA from a serving AP to a target AP, including parameters for link deletion and addition operations, and receiving a response message with identifiers for the respective operations, allowing the STA to roam without reassociation and reduce latency.

Benefits of technology

This approach enables seamless roaming by reducing the latency associated with exchanging context information, improving the efficiency of wireless communication networks by allowing STA transitions without reassociation.

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Abstract

This disclosure provides methods, components, devices, and systems for reconfiguration signaling for seamless roaming. Some aspects more specifically relate to reconfiguration signaling to facilitate link addition and link deletion operations for roaming, such as seamless roaming. Either a wireless station (STA) or an access point (AP) device may initiate the roaming. In some examples, a first device, such as the STA, a serving AP device, or a target AP device, may transmit a reconfiguration request to a second device, requesting to perform a link addition operation on links of the target AP device or to perform a link deletion operation on links of the serving AP device. The second device, which may be the STA, the serving AP device, or the target AP device, may transmit a reconfiguration response to indicate which links are to be deleted or added.
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