Communication apparatus and communication method therefor

• US 8,744,345 B2
• Filed: 07/04/2008
• Issued: 06/03/2014
• Est. Priority Date: 07/18/2007
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Goto, Fumihide
• Primary Examiner(s): Nguyen, Tu X
• Application Number:
  US12/599,972
• Publication Number:
  US 20100234056A1
• Time in Patent Office: 2,160 Days
• Field of Search: 455/11.1, 455/13.1, 455/235.1, 455/231
• US Class Current: 455/13.1
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals

Abstract

To detect a provider of communication parameters, a communication apparatus executes control so that when a signal for searching for the provider of the communication parameters is sent, an apparatus which does not serve as the provider decreases the frequency of responding to the search signal and the provider increases the frequency of responding to the search signal.

Claims

1. A communication apparatus comprising:

a receiving unit which receives a search signal for searching for a provider of communication parameters, wherein the communication parameters comprise information relating to at least one of an encryption method, an encryption key, an authentication method, and an authentication key for a wireless communication;

a notification unit which notifies, upon reception of the search signal by the receiving unit, the provider of the reception of the search signal; and

a control unit which performs, upon reception of the search signal by the receiving unit, (i) deterring a predetermined broadcast signal transmission from the communication apparatus, and (ii) deterring a response signal transmission for the search signal.

2. The communication apparatus according to claim 1, wherein the notification unit notifies the provider of reception of the search signal if the communication apparatus is an apparatus which has received the communication parameters from the provider.

3. The communication apparatus according to claim 1, wherein the receiving unit receives the search signal transmitted via a wireless communication.

4. The communication apparatus according to claim 3, wherein the wireless communication is a wireless LAN complying with the IEEE 802.11 standard series.

5. The communication apparatus according to claim 1, wherein the communication apparatus communicates in an ad-hoc network.

6. A communication apparatus comprising:

a receiving unit which receives a search signal for searching for a provider of communication parameters, wherein the communication parameters comprise information relating to at least one of an encryption method, an encryption key, an authentication method, and an authentication key for a wireless communication; and

a control unit which performs, upon reception of the search signal by the receiving unit while the communication apparatus is not the provider and is an apparatus which transmits a response signal for the search signal, (i) deterring a predetermined broadcast signal transmission from the communication apparatus, and (ii) deterring a response signal transmission for the search signal.

7. The communication apparatus according to claim 6, wherein the receiving unit receives the search signal transmitted via a wireless communication.

8. The communication apparatus according to claim 7, wherein the wireless communication is a wireless LAN complying with the IEEE 802.11 standard series.

9. The communication apparatus according to claim 6, wherein the communication apparatus communicates in an ad-hoc network.

10. A communication method for a communication apparatus, comprising:

a determination step of determining that the communication apparatus receives a search signal for searching for a provider of communication parameters if the communication apparatus is not the provider of the communication parameters, wherein the communication parameters comprise information relating to at least one of an encryption method, an encryption key, an authentication method, and an authentication key for a wireless communication;

a notification step of notifying the provider that the communication apparatus has received the search signal if it is determined in the determination step that the communication apparatus has received the search signal; and

a control step of performing, upon reception of the search signal, (i) deterring a predetermined broadcast signal transmission from the communication apparatus, and (ii) deterring a response signal transmission for the search signal.

11. A communication method for a communication apparatus, comprising:

a determination step of determining that the communication apparatus has received a search signal for searching for a provider of communication parameters if the communication apparatus is not the provider of the communication parameters, wherein the communication parameters comprise information relating to at least one of an encryption method, an encryption key, an authentication method, and an authentication key for a wireless communication; and

a control step of performing, upon reception of the search signal while the communication apparatus is not the provider and is an apparatus which transmits a response signal for the search signal, (i) deterring a predetermined broadcast signal transmission from the communication apparatus, and (ii) deterring a response signal transmission for the search signal.

12. A communication apparatus comprising:

a receiving unit which receives a search signal for searching for a provider of communication parameters, wherein the communication parameters comprise information relating to at least one of an encryption method, an encryption key, an authentication method, and an authentication key for a wireless communication;

a notification unit which notifies, upon reception of the search signal by the receiving unit, the provider of the reception of the search signal; and

a control unit which performs, upon reception of the search signal by the receiving unit, (i) deterring the response signal transmission for the search signal, and (ii) decreasing the transmission frequency of the predetermined broadcast signal transmission from the communication apparatus.

13. The communication apparatus according to claim 12, wherein the notification unit notifies the provider of reception of the search signal if the communication apparatus is an apparatus which has received the communication parameters from the provider.

14. The communication apparatus according to claim 12, wherein the receiving unit receives the search signal transmitted via a wireless communication.

15. The communication apparatus according to claim 14, wherein the wireless communication is a wireless LAN complying with the IEEE 802.11 standard series.

16. The communication apparatus according to claim 12, wherein the communication apparatus communicates in an ad-hoc network.

17. A communication apparatus comprising:

a receiving unit which receives a search signal for searching for a provider of communication parameters, wherein the communication parameters comprise information relating to at least one of an encryption method, an encryption key, an authentication method, and an authentication key for a wireless communication; and

a control unit which performs, upon reception of the search signal by the receiving unit while the communication apparatus is not the provide and is an apparatus which transmits a response signal for the search signal, (i) deterring the response signal transmission for the search signal, and (ii) decreasing the transmission frequency of the predetermined broadcast signal transmission from the communication apparatus.

18. The communication apparatus according to claim 17, wherein the receiving unit receives the search signal transmitted via a wireless communication.

19. The communication apparatus according to claim 18, wherein the wireless communication is a wireless LAN complying with the IEEE 802.11 standard series.

20. The communication apparatus according to claim 17, wherein the communication apparatus communicates in an ad-hoc network.

21. A communication method for a communication apparatus, comprising:

a determination step of determining that the communication apparatus receives a search signal for searching for a provider of communication parameters if the communication apparatus is not the provider of the communication parameters, wherein the communication parameters comprise information relating to at least one of an encryption method, an encryption key, an authentication method, and an authentication key for a wireless communication;

a notification step of notifying the provider that the communication apparatus has received the search signal if it is determined in the determination step that the communication apparatus has received the search signal; and

a control step of performing, upon reception of the search signal, (i) deterring a response signal transmission for the search signal, and (ii) decreasing a transmission frequency of the predetermined broadcast signal transmission from the communication apparatus.

22. A communication method for a communication apparatus, comprising:

a determination step of determining that the communication apparatus has received a search signal for searching for a provider of communication parameters if the communication apparatus is not the provider of the communication parameters, wherein the communication parameters comprise information relating to at least one of an encryption method, an encryption key, an authentication method, and an authentication key for a wireless communication; and

a control step of performing, upon reception of the search signal while the communication apparatus is not the provider and is an apparatus which transmits a response signal for the search signal, (i) deterring a response signal transmission for the search signal, and (ii) decreasing a transmission frequency of the predetermined broadcast signal transmission from the communication apparatus.