Determine transferable context for 802.11bn seamless roaming

Determine the exact set of context information related to a station multi‑link device that can be transferred or renegotiated between the current AP MLD and the target AP MLD during the roaming preparation procedure in IEEE 802.11bn, and define the corresponding protocol support.

Background

The seamless roaming process in 802.11bn is split into preparation and execution phases to enable handover between AP MLDs without service interruption.

Although the need to transfer or renegotiate STA MLD context is identified, the document explicitly states that the specifics of the transferable context remain to be determined.