Patent ID: 8259633

Claim:
An access point apparatus of an infrastructure mode network comprising: a receiving section configured to receive a beacon of another access point apparatus, the beacon including beacon period information of the another access point apparatus, delivery traffic indication message (“DTIM”) period information of the another access point apparatus, and DTIM count information of the another access point apparatus, wherein the beacon is a DTIM beacon when the DTIM count information is zero and is a non-DTIM beacon when the DTIM count information is non-zero; a beacon detection section configured to detect the beacon received in the receiving section in a predetermined time immediately before or after a beacon of the access point apparatus is transmitted; a beacon adjustment section configured to, when a DTIM beacon of the access point apparatus is determined to collide with a DTIM beacon of the another access point apparatus, adjust a transmission period of DTIM beacons of the access point apparatus by changing a DTIM count of the next beacon based on the beacon period information, the DTIM period information, and the DTIM count information included in the detected beacon; and a transmitting section configured to transmit the DTIM beacons at the adjusted transmission period.