Communication apparatus, control method therefor and computer-readable storage medium

A control method for a communication apparatus for transmitting, to a plurality of terminals, a trigger frame for executing uplink transmission, the method comprising:

• obtaining, from each of the plurality of terminals, ability information indicating a preparation time necessary to start transmission after a resource unit to be used is designated by the trigger frame;
• selecting terminals as destinations of one trigger frame from the plurality of terminals;
• and
• transmitting the trigger frame for the selected terminals by adding a padding area to ensure the preparation times of the terminals selected in the selecting,
• wherein in the selecting, the terminals are selected from the plurality of terminals based on the pieces of ability information so that a total sum of the padding area added in the transmitting becomes small.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method for a communication apparatus for transmitting, to a plurality of terminals, a trigger frame for executing uplink transmission, the method comprising:

• obtaining, from each of the plurality of terminals, ability information indicating a preparation time necessary to start transmission after a resource unit to be used is designated by the trigger frame;
• selecting terminals as destinations of one trigger frame from the plurality of terminals;
• and
• transmitting the trigger frame for the selected terminals by adding a padding area to ensure the preparation times of the terminals selected in the selecting,
• wherein in the selecting, the terminals are selected from the plurality of terminals based on the pieces of ability information so that a total sum of the padding area added in the transmitting becomes small.