Uplink (ul) aggregation for multi-link operation (mlo)

A method of wireless communication by a wireless access point (AP), comprising:

• advertising a first enhanced distributed channel access (EDCA) set including first EDCA parameters for a first link;
• advertising a second EDCA set including second EDCA parameters for a second link;
• receiving a first physical protocol data unit (PPDU) from a station on the first link during a transmission opportunity (TXOP);
• and
• receiving a second PPDU from the station on the second link during the TXOP, wherein a start time and an end time of the first PPDU and the second PPDU are aligned.

A wireless communication device 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:
• determine that a first random back off (RBO) for a first channel of a first link has counted down to zero;
• determine, when the first RBO has counted down to zero, that a second RBO for a second channel of a second link has a count down remaining;
• determine whether to wait for the second RBO before transmitting on the first link;
• and
• transmit at least a first physical protocol data unit (PPDU) on the first link during a transmission opportunity (TXOP) that starts when the first RBO has counted down to zero.

A wireless access point, 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:
• advertise a first enhanced distributed channel access (EDCA) set including first EDCA parameters for a first link;
• advertise a second EDCA set including second EDCA parameters for a second link;
• receive a first physical protocol data unit (PPDU) from a station on the first link during a transmission opportunity (TXOP);
• and
• receive a second PPDU from the station on the second link during the TXOP, wherein a start time and an end time of the first PPDU and the second PPDU are aligned.