Communication device, wireless communication device, and control method

• US 8,681,703 B2
• Filed: 05/18/2012
• Issued: 03/25/2014
• Est. Priority Date: 02/15/2006
• Status: Active Grant

• Current Assignee: Fujitsu Client Computing Limited (Lenovo Group Ltd.)
• Original Assignee: Fujitsu Limited
• Inventors: Masuda, Yasuhiko
• Primary Examiner(s): HTUN, SAN A
• Application Number:
  US13/475,356
• Publication Number:
  US 20120230312A1
• Time in Patent Office: 676 Days
• Field of Search: 455/410, 455/411, 4554321-444, 455/456.5, 455/11.1, 455/13.1, 455/16, 455/550.1, 455/552.1, 455/553.1, 455/561, 455418-4221, 370/310.2, 370/315, 370/328, 370331-333, 370/338, 370351-356
• US Class Current: 370/328
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04W 12/062 Pre-authentication
• CPC Class Codes: H04W 76/22 Manipulation of transport tunnels
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A communication device that includes an authentication unit that authenticates a wireless communication device depending on whether a predetermined authentication condition is satisfied, and a relay unit that relays communication performed by the wireless communication device when the authentication unit successfully authenticates the wireless communication device, comprising: an information transmission and reception unit receiving connected-terminal information, which includes identification information identifying the wireless communication device whose communication is being relayed, held by other communication devices; a recording unit recording the received connected-terminal information; a judging unit judging, when a connection request is received from the wireless communication device, whether the identification information identifying the wireless communication device is included in the recorded connected-terminal information; and a permitting unit permitting relaying of communication performed by the wireless communication device when the identification information of the wireless communication device is included in the recorded connected-terminal information.

Claims

1. A communication device that includes an authentication unit that authenticates a wireless communication device depending on whether a predetermined authentication condition is satisfied when a connection request is received from the wireless communication device, and a relay unit that relays communication performed by the wireless communication device when the authentication unit successfully authenticates the wireless communication device, comprising:

a first information reception unit that receives connected-terminal information held by other communication devices, the connected-terminal information including identification information identifying a wireless communication device which communication is relayable and receives identification information identifying the other communication devices;

a recording unit that records the received connected-terminal information and the identification information identifying the other communication devices;

a first judging unit that judges, when the connection request is received from the wireless communication device, whether the identification information identifying the wireless communication device is included in the recorded connected-terminal information;

a permitting unit that permits relaying of communication performed by the wireless communication device when the identification information of the wireless communication device is included in the recorded connected-terminal information;

a providing unit that provides, for the wireless communication device which communication is permitted by the permitting unit, the recorded identification information identifying the other communication devices;

a second information reception unit that receives condition information which includes a predetermined authentication condition from the other communication devices;

a second judging unit that judges whether a received condition information matches a predetermined authentication condition of own communication device; and

a recording control unit that controls the recording unit to record, when the second judging unit judges that the received condition information matches the predetermined authentication condition of the own communication device, a relayable connected-terminal information held by other communication device which sends the condition information.

2. A wireless communication system which comprises a plurality of communication devices and a wireless communication device that performs communication via the communication devices, wherein:

each of the communication devices includes;

a management unit that manages other communication devices having an authentication condition which matches an authentication condition of own communication device;

a transmission unit that sends identification information of the other communication devices, which are managed, to a wireless communication device for which a connection is permitted depending on whether a predetermined authentication condition is satisfied, the wireless communication device includes an execution unit that executes roaming processing based on the identification information received from the communication devices;

each communication device further includes;

an information reception unit that receives condition information which include predetermined authentication conditions from the other communication devices; and

a recording unit that records, when judged that a received condition information matches the predetermined authentication condition of the own communication device, the identification information received from other communication device which sends the condition information.

3. A communication device that that authenticates, when a connection request is received from a wireless communication device, the wireless communication device depending on whether a predetermined authentication condition is satisfied, and that relays communication performed by the wireless communication device when the wireless communication device is successfully authenticated, comprising:

a transceiver,

a computer processor coupled to the transceiver to transceiver information and to execute;

receiving connected-terminal information held by other communication devices, connected-terminal information including identification information identifying a wireless communication device which communication is relayable and receives identification information identifying the other communication devices;

recording the received connected-terminal information and the identification information identifying the other communication devices;

judging, when the connection request is received from the wireless communication device, whether the identification information identifying the wireless communication device is included in the recorded connected-terminal information;

permitting relaying of communication performed by the wireless communication device when the identification information of the wireless communication device is included in the recorded connected-terminal information;

providing, for the wireless communication device for which communication is permitted, the recorded identification information identifying the other communication devices;

receiving condition information which includes a predetermined authentication condition from the other communication devices; and

sending, when judged that a received condition information matches an authentication condition for a recorded connected-terminal information, the recorded connected-terminal information to the communication device which sends the condition information.