Trigger-based random access for wireless device

A method performed by a wireless device, the method comprising:

• allocating a plurality of resources for an uplink trigger-based transmission, including allocating one or more resources for random-access communications;
• generating a plurality of information fields indicating the allocations of the plurality of resources, including one or more random-access information fields indicating the one or more allocations of resources for the random-access communications;
• determining a padding length based on a minimum processing time for a station to process a random-access information field of the one or more random-access information fields, wherein the padding length ensures that at least the minimum processing time elapses between an end of the random-access information field and an end of a Physical layer Protocol Data Unit (PPDU) to be transmitted;
• generating a padding field having the padding length;
• generating a trigger frame including the plurality of information fields and the padding field, the trigger frame to initiate the uplink trigger-based transmission;
• and
• transmitting the PPDU including the trigger frame,
• wherein the padding field is transmitted after the plurality of information fields.

A non-transitory computer-readable medium storing instructions that, when executed by a processing device of a wireless device, cause the wireless device to perform operations comprising:

• allocating a plurality of resources for an uplink trigger-based transmission, including allocating one or more resources for random-access communications;
• generating a plurality of information fields indicating the allocations of the plurality of resources, including one or more random-access information fields indicating the one or more allocations of resources for the random-access communications;
• determining a padding length based on a minimum processing time for a station to process a random-access information field of the one or more random-access information fields, wherein the padding length ensures that at least the minimum processing time elapses between an end of the random-access information field and an end of a Physical layer Protocol Data Unit (PPDU) to be transmitted;
• generating a padding field having the padding length;
• generating a trigger frame including the plurality of information fields and the padding field, the trigger frame to initiate the uplink trigger-based transmission;
• and
• transmitting the PPDU including the trigger frame,
• wherein the padding field is transmitted after the plurality of information fields.