Mac address handling for roaming in wireless lan system

A non-access point (AP) multi-link device (MLD) comprising:

• a transceiver;
• a memory;
• and
• at least one processor operatively coupled to the transceiver and the memory,
• wherein the memory stores instructions that, based on being executed by the at least one processor, perform operations comprising:
• receiving, by a non-AP station (STA) affiliated with the non-AP MLD, a group identifier identifying a group of AP MLDs for a seamless basic service set (BSS) transition,
• wherein the seamless BSS transition is a BSS transition performed between AP MLDs that belong to the group while the non-AP MLD maintains association;
• transmitting, by the non-AP STA, a request frame for seamless BSS transition,
• wherein the request frame comprises identification information related to an AP MLD within the group;
• receiving, by the non-AP STA, a response frame to the request frame;
• and
• executing, by the non-AP STA, a seamless BSS transition to the AP MLD based on receiving the response frame.

A first access point (AP) multi-link device (MLD) comprising:

• a transceiver;
• a memory;
• and
• at least one processor operatively coupled to the transceiver and the memory,
• wherein the memory stores instructions that, based on being executed by the at least one processor, perform operations comprising:
• transmitting, by an AP affiliated with the AP MLD to a non-AP station (STA) affiliated with a non-AP MLD, a group identifier identifying a group of AP MLDs for a seamless basic service set (BSS) transition,
• wherein the seamless BSS transition is a BSS transition performed between AP MLDs that belong to the group while the non-AP MLD maintains association;
• receiving, by the AP from the non-AP STA, a request frame for seamless BSS transition,
• wherein the request frame comprises identification information related to a second AP MLD within the group;
• and
• transmitting, by the AP to the non-AP STA, a response frame to the request frame,
• wherein a seamless BSS transition to the AP MLD is executed after the response frame is transmitted.