US 2007/0183379 A1Published application

Access point

AssigneeHitachi, Ltd.

InventorsTakashi Itamiya, Tatsuo Horikoshi, Kuniaki Akatsuka, Taketoshi Arakawa, Shigeyuki Sudo

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Abstract

An access point diagnosis unit 201 controls a radio access terminal portion 213 included in the access point 100, to execute a test of connection with the access point 100. A switch within the access point selectively connects the radio access terminal portion 213, with any of an antenna and radio reception parts of the own access point 100. 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 portion 213 to the radio access terminal 108 (1) along a first path tracing the radio reception part connected by the switch, etc. of the access point 100, or (2) along a second path tracing the antenna connected by the switch and the other access point 101.

An access point comprising:

a radio portion which receives and/or transmits a radio signal;
a signal processing portion which executes modulation, demodulation and calling-connection processing of the radio signal;
a line interface for connecting to a network;
a radio access terminal portion which has a transmitter and a receiver of a radio access terminal, and which transmits the radio signal to said radio portion and receives the radio signal from said radio portion;
a diagnosis control unit which controls said radio access terminal portion to execute a predetermined diagnostic test of the access point thereof;
an antenna which is connected with said radio access terminal portion directly or through a switch, and through which said radio access terminal portion communicates with another access point;
and
the switch which connects said radio access terminal portion to either of said antenna and said radio portion;
wherein:
said radio access terminal portion and said radio portion are connected by said switch;
the diagnostic test is performed by said diagnosis control unit by using said radio access terminal portion and said radio portion which are connected;
and
in accordance with a failing part as a result of the diagnostic test, (1) said radio access terminal portion and said radio portion are connected by said switch, and said radio access terminal portion transmits failure information which contains the failing part and/or a failure content to a predetermined radio access terminal by a first path through said radio portion, said signal processing portion and said line interface, or (2) said radio access terminal portion and said antenna are connected by said switch, and said radio access terminal portion transmits the failure information to the predetermined radio access terminal by a path which is a second path through said antenna and the other access point and in which any failure is not detected.

10 more elements

Abstract

Claims15