Patent ID: 11924911
Assignee: MEDIATEK SINGAPORE PTE. LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method, comprising:
performing a fast initial link setup (FILS) procedure to establish wireless communications between an access point (AP) multi-link device (MLD) and a non-AP station (STA) MLD over a plurality of links; and
communicating over one or more links of the plurality of links upon completion of the FILS procedure,
wherein the communicating comprises communicating a retransmitted frame with a Key identifier (ID) field in a Galois/Counter Mode Protocol (GCMP) header of the frame being equal to a Key ID field of a first transmitted medium access control (MAC) protocol data unit (MPDU), and
wherein the performing of the FILS procedure comprises the AP MLD performing an association or reassociation procedure by:
generating an association or reassociation response frame by constructing a Key Delivery element indicating:
a current group temporal key (GTK) and key receive sequence counter (RSC) associated with each link of the plurality of links,
a current integrity group temporal key (IGTK) and IGTK packet number (IPN) associated with each link of the plurality of links in an event that management frame protection is enabled, and
a current beacon integrity group temporal key (BIGTK) and BIGTK packet number (BIPN) associated with each link of the plurality of links in an event that beacon protection is enabled; and

transmitting the association or reassociation response frame to the non-AP STA MLD.