| 摘要 |
A system shown in the drawing automatically sends information stored in a server to a mobile terminal (MT) that has entered a service area. At least one access point station (AP# 1 ) of access point stations (AP# 1 to AP# 3 ) installed in a high place is connected by cable to a contents server or an external network; a service area having a shape of a spot is deployed under the above access point station. Further, the access point station (AP# 1 ) is linked wirelessly ad hoc to another access point station (AP# 2 , AP# 3 ) by means of wireless P-P (point-to-point) link. Consequently, the another access point station can also deploy an equivalent hotspot service. Accordingly, a millimeter-wave ad hoc communication network spreading two-dimensionally can be realized without constructing a cable network.
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