Method for performing multi-link communication in wireless communication system

A method in a wireless local area network (WLAN) system, the method comprising:

• transmitting, by a first non-access point (AP) station (STA) affiliated with a non-AP multi-link device (MLD) to a first AP affiliated with an AP MLD, a multi-link probe request frame including complete elements of a second AP affiliated with the AP MLD;
• and
• receiving, by the first non-AP STA, a multi-link probe response frame from the first AP, based on the multi-link probe request frame, wherein the multi-link probe response frame includes the complete elements of the second AP,
• wherein the first AP operating on a first link and the second AP operating on a second link are affiliated with the AP MLD, and
• wherein the first non-AP STA operating on the first link is affiliated with the non-AP MLD.

A first non-access point (AP) station (STA) affiliated with a non-AP multi-link device (MLD) in a wireless local area network (WLAN) system, the first non-AP STA comprising:

• a transceiver transmitting and/or receiving a wireless signal;
• and
• a processor being operatively connected to the transceiver,
• wherein the processor is configured to:
• transmitting a multi-link probe request frame including complete elements of a second AP affiliated with the AP MLD to a first AP affiliated with an AP MLD;
• and
• receiving a multi-link probe response frame from the first AP, based on the multi-link probe request frame, wherein the multi-link probe response frame includes the complete elements of the second AP,
• wherein the first AP operating on a first link and the second AP operating on a second link are affiliated with the AP MLD, and
• wherein the first non-AP STA operating on the first link is affiliated with the non-AP MLD.

A method in a wireless local area network (WLAN) system, the method comprising:

• receiving, by a first access point (AP) affiliated with an AP multi-link device (MLD) from a first non-AP station (STA) affiliated with a non-AP MLD, a multi-link probe request frame including complete elements of a second AP affiliated with the AP MLD;
• and
• transmitting, by the first non-AP STA, a multi-link probe response frame to the first AP, based on the multi-link probe request frame, wherein the multi-link probe response frame includes the complete elements of the second AP,
• wherein the first AP operating on a first link and the second AP operating on a second link are affiliated with the AP MLD, and
• wherein the first non-AP STA operating on the first link is affiliated with the non-AP MLD.