INTER-LAN CONNECTING METHOD, ACCESS POINT DEVICE AND LAN SYSTEM

PROBLEM TO BE SOLVED: To realize connection between cable LANs without setting a synchronizing mode and newly providing its processing procedure by sending a synchronizing frame and establishing synchronization on condition that the synchronizing frame from another access point is not received after passing a delay time respectively set by the probability of mutually independent uniform distribution at each timing. SOLUTION: A cable LAN #1 having a fixed terminal (1) 11 and an access point(AP1) 12 on a LAN cable and a cable LAN #2 having a fixed terminal (2) 13 and an access point(AP2) 14 on a LAN cable respectively separately exist in an area to construct a radio LAN between the AP (1) 12 and AP (2) 14. Then, each access point sends a synchronizing frame and establishes synchronization on condition that the synchronizing frame from another access point is not received after passing a delay time set by the probability of mutually independent uniform distribution at each timing with the same period and the same timing as references.