公开(公告)号：JP2003115851A

公开(公告)日：2003-04-18

申请号：JP2001307644

申请日：2001-10-03

Applicant: ATR ADVANCED TELECOMM RES INST

Inventor： HORISAWA SHINGO ,  SOMPRAKASH BANDYOPADHYAY ,  UEDA TETSUO ,  HASUIKE KAZUO

IPC: H04L12/28 ,  H04B7/26 ,  H04W84/18 ,  H04W88/02 ,  H04Q7/36

Abstract: PROBLEM TO BE SOLVED: To suppress interference of the same channel on a wireless network, to increase a number of simultaneous communications in comparison with the conventional case and to increase a communication information quantity. SOLUTION: In the wireless network for performing packet communication between respective radio stations, on the basis of a signal from the adjacent radio station containing the measured value of a signal-to-interference-noise radio (SINR) when each of adjacent radio station receives a signal from the present station, the SINR watched from each of adjacent radio station for each azimuth within a horizontal plane with the present station as a center is found, the maximum SINR is selected for each adjacent radio station and defines it as a degree of affinity with each adjacent radio station, an adjacent link state table containing the relevant degree of affinity and the azimuth corresponding thereto is generated and on the basis of this table, radio communication is performed with the adjacent radio station of an opposite party. Besides, an under-communication table containing an azimuth for each adjacent radio station under radio communication with the other radio station is generated and on the basis of this table, a radio signal is transmitted by using an exclusive radiation pattern for turning a null point to the azimuth of the adjacent radio station under radio communication with the other radio station.