Patent ID: 8577408

Claim:
A radio communication apparatus which performs a direct communication with a counter radio communication apparatus, said radio communication apparatus comprising: a radio section configured to receive from the counter radio communication apparatus, a first radio signal which contains a first transmission power setting value as a setting value of power at transmission from the counter radio communication apparatus, and to measure a first reception power value as a power value at reception of said first radio signal, wherein the first transmission power setting value comprises a first value of a plurality of predetermined values, and the first reception power value comprises a second value of the plurality of predetermined values; and a transmission power control section configured to determine a second transmission power setting value as a setting value of power at transmission of a second radio signal to the counter radio communication apparatus based on a predetermined relationship between the first value and the second value, wherein said radio section transmits said second radio signal, which contains said second transmission power setting value, to the counter radio communication apparatus in transmission power indicated with said second transmission power setting value.