Wireless communication apparatus and wireless communication method

A wireless communication apparatus performing access control which starts transmission after a fixed time and a backoff time pass since an available state of a channel is detected through carrier sense, the backoff time being set based on a random value selected within a contention window width, comprising:

• a remaining time calculating unit configured to calculate a remaining time until a request delay time time-outs after data is generated;
• and
• a setting unit configured to set at least one of the fixed time and the contention window width according to the remaining time calculated by the remaining time calculating unit.

A wireless communication method performing access control which starts transmission after a backoff time passes since an available state of a channel is detected through carrier sense, the backoff time being set based on a random value selected within a contention window width, comprising:

• calculating a remaining time untill a request delay time time-outs after data is generated;
• and
• setting the contention window width according to the remaining time.

A wireless communication method performing access control which starts transmission after a fixed time and a backoff time pass since an available state of a channel is detected through carrier sense, the backoff time being set based on a random value selected within a contention window width, comprising:

• calculating a remaining time until a request delay time time-outs after data is generated;
• and
• setting at least one of the fixed time and the contention window width according to the remaining time.