Indicating data for transmission per traffic identifier

A method for wireless communications by an access point (AP) multi-link device (MLD), comprising:

• transmitting a traffic indication map (TIM) that includes a plurality of values, wherein each value of the TIM:
• indicates a respective association identifier (AID) associated with a respective non-AP MLD of a plurality of non-AP MLDs, including a first AID associated with a first non-AP MLD, and indicates whether the AP has buffered units (BUs) for the respective non-AP MLD, including the first non-AP MLD;
• transmitting, to a first non-AP station of one or more non-AP stations affiliated with the first non-AP MLD, a message that includes a medium access control (MAC) header control field indicating one or more traffic identifiers (TIDs) of the BUs for the first non-AP MLD;
• determining one or more links, of a plurality of links, associated with the one or more TIDs based on a mapping of a plurality of TIDs, including the one or more TIDs, to the plurality of links;
• and
• transmitting the BUs associated with the one or more TIDs to the non-AP MLD on the determined one or more links.

A non-access point (non-AP) multi-link device (MLD) that includes a plurality of non-AP stations, comprising:

• at least one modem;
• at least one processor communicatively coupled with the at least one modem;
• and
• at least one memory communicatively coupled with the at least one processor and storing processor-readable code that, when executed by the at least one processor in conjunction with the at least one modem, is configured cause the non-AP MLD device to:
• receive, from an access point (AP), a traffic indication map (TIM) that includes a plurality of values, wherein each value of the TIM:
• indicates a respective association identifier (AID) associated with a respective non-AP MLD of a plurality of non-AP MLDs, including a first AID associated with the first non-AP MLD, and
• indicates whether the AP has buffered units (BUs) for the respective non-AP MLD, including the first non-AP MLD;
• receive, from the AP by a first non-AP station of the one or more non-AP stations affiliated with the first non-AP MLD, a message that includes a medium access control (MAC) header control field indicating one or more traffic identifiers (TIDs) of the BUs for the first non-AP MLD;
• determine one or more links, of a plurality of links, associated with the one or more TIDs based on a mapping of a plurality of TIDs, including the one or more TIDs, to the plurality of links;
• and
• receive the BUs associated with the one or more TIDs from the AP on the determined one or more links.

An access point (AP) multi-link device (MLD), comprising:

• at least one modem;
• at least one processor communicatively coupled with the at least one modem;
• and
• at least one memory communicatively coupled with the at least one processor and storing processor-readable code that, when executed by the at least one processor in conjunction with the at least one modem, is configured to cause the AP MLD to:
• transmit a traffic indication map (TIM) that includes a plurality of values, wherein each value of the TIM:
• indicates a respective association identifier (AID) associated with a respective non-AP MLD of a plurality of non-AP MLDs, including a first AID associated with a first non-AP MLD, and
• indicates whether the AP has buffered units (BUs) for the respective non-AP MLD, including the first non-AP MLD;
• transmit, to a first non-AP station of one or more non-AP stations affiliated with the first non-AP MLD, a message that includes a medium access control (MAC) header control field indicating one or more traffic identifiers (TIDs) of the BUs for the first non-AP MLD;
• determine one or more links, of a plurality of links, associated with the one or more TIDs based on a mapping of a plurality of TIDs, including the one or more TIDs, to the plurality of links;
• and
• transmit the BUs associated with the one or more TIDs to the non-AP MLD on the determined one or more links.