Communication apparatus, and communication method therefor

• US 8,782,257 B2
• Filed: 03/27/2009
• Issued: 07/15/2014
• Est. Priority Date: 04/04/2008
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Goto, Fumihide
• Primary Examiner(s): Pwu, Jeffrey
• Assistant Examiner(s): AMORIN, CARLOS E
• Application Number:
  US12/935,873
• Publication Number:
  US 20110029680A1
• Time in Patent Office: 1,936 Days
• Field of Search: None
• US Class Current: 709/228
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/20 Master-slave selection or change arrangements

Abstract

In a communication-parameter providing apparatus, a search is conducted at the start of a communication-parameter automatic setting process. Upon detection of a communication apparatus, the rate at which the communication-parameter providing apparatus sends a beacon per unit time is increased, whereby a communication-parameter receiving apparatus can easily detect the communication-parameter providing apparatus.

Claims

1. A communication apparatus, comprising:

a processor; and

a memory storing program instructions that, when executed by the processor, causes the communication apparatus to;

provide a communication parameter for network communication to a communication-parameter receiving apparatus that receives a provided communication parameter for performing communication;

perform a search process for detecting another communication apparatus; and

change a value for increasing the number of broadcast signals sent by the communication apparatus per unit time in response to detection of the communication-parameter receiving apparatus and another apparatus different from the communication-parameter receiving apparatus in a case that the communication apparatus performs as a provider which provides the communication parameter to the communication-parameter receiving apparatus, and not change the value for increasing the number of broadcast signals sent by the communication apparatus per unit time in a case that another apparatus is not detected.

2. The communication apparatus according to claim 1, wherein, in a case that the communication-parameter receiving apparatus and another apparatus different from the communication-parameter receiving apparatus are detected in a same wireless network with the communication apparatus, the value is changed so that the number of broadcast signals sent by the communication apparatus per unit time becomes greater than the number of broadcast signals sent by the another communication apparatus per unit time.

3. The communication apparatus according to claim 1, wherein the communication apparatus changes the value to the smaller value.

4. The communication apparatus according to claim 1, wherein the value is periodically changed after the communication-parameter receiving apparatus and the another communication apparatus is detected by performing the search process.

5. The communication apparatus according to claim 1, wherein the value is changed in accordance with the number of other communication apparatuses detected by performing the search process.

6. The communication apparatus according to claim 1, wherein the value is changed to a predetermined minimum value in response to detection of the communication-parameter receiving apparatus and the another communication apparatus is detected by performing the search process.

7. The communication apparatus according to claim 1, wherein the value comprises a parameter for determining a sending probability of the broadcast signal.

8. The communication apparatus according to claim 1, wherein the value comprises a parameter for determining a waiting time until sending a broadcast signal from the communication apparatus.

9. The communication apparatus according to claim 1, wherein the value comprises a value of a contention window.

10. The communication apparatus according to claim 1, wherein the communication parameter comprises at least one of an encryption method, an encryption key, an authentication method, and an authentication key.

11. A communication method for a communication apparatus that has a function of providing a communication parameter for network communication to a communication-parameter receiving apparatus that receives a provided communication parameter for performing communication, the communication method being implemented by program instructions that, when executed by a processor, causes the communication apparatus to perform the following:

performing a search process for detecting another communication apparatus; and

changing a value for increasing the number of broadcast signals sent by the communication apparatus per unit time in response to detection of the communication-parameter receiving apparatus and another apparatus different from the communication-parameter receiving apparatus in a case that the communication apparatus performs as a provider which provides the communication parameter to the communication-parameter receiving apparatus, and not changing the value for increasing the number of broadcast signals sent by the communication apparatus per unit time in a case that another apparatus is not detected.