Hitachi, Ltd.

Takashi Itamiya

Yosuke Takahashi

Akihiko Yoshida

Shigeyuki Sudo

Nobuo Ito

Shigeyasu Kubo

Tatsuo Horikoshi

Taketoshi Arakawa

Kuniaki Akatsuka

A wireless communication system including a wireless terminal, a plurality of base stations and a call processing control unit is disclosed. The wireless terminal, upon reception of the notification information from any of the base stations, judges whether the area included in the notification information is contained in the location registration area list stored in a storage unit, and in the case where the particular area is not so contained, sends a location registration request to the call processing control unit. On the other hand, the call processing control unit creates a new location registration area list based on the area included in the notification information and the neighboring areas, and sends the location registration area list to the wireless terminal thereby to execute the paging process.

Wireless communication system

An access point diagnosis unitcontrols a radio access terminal portionincluded in the access point, to execute a test of connection with the access point. A switch within the access point selectively connects the radio access terminal portion, with any of an antenna and radio reception parts of the own access point. In accordance with a failing part, the failure information which contains the failing part and/or a failure content is transmitted from the radio access terminal portionto the radio access terminal(1) along a first path tracing the radio reception part connected by the switch, etc. of the access point, or (2) along a second path tracing the antenna connected by the switch and the other access point

Access point

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Yokohama, Japan

Takashi Itamiya