Communication apparatus, communication method, and program

Abstract

A communication apparatus reads an image relating to a first other communication apparatus and acquires information on the first other communication apparatus from the image. The communication apparatus reads an image relating to a second other communication apparatus and acquires information on the second other communication apparatus from the image. The communication apparatus transmits information on a communication channel to the first other communication apparatus. The communication channel is for use in a role determination process for determining roles of the first other communication apparatus and the second other communication apparatus in direct wireless communication. The communication apparatus transmits the information on the communication channel and the information on the first other communication apparatus to the second other communication apparatus.

1 . A communication apparatus comprising:
 a first reading unit configured to read an image relating to a first other communication apparatus;   a first acquisition unit configured to acquire information on the first other communication apparatus from the image read by the first reading unit;   a second reading unit configured to read an image relating to a second other communication apparatus;   a second acquisition unit configured to acquire information on the second other communication apparatus from the image read by the second reading unit;   a first transmitting unit configured to transmit information on a communication channel to the first other communication apparatus, the communication channel being for use in a role determination process for determining roles of the first other communication apparatus and the second other communication apparatus in direct wireless communication; and   a second transmitting unit configured to transmit the information on the communication channel transmitted by the first transmitting unit and the information on the first other communication apparatus acquired by the first acquisition unit to the second other communication apparatus; and   a control unit configured to perform direct communication compliant with Wi-Fi Direct® standard with the first other communication apparatus based on the acquired information.   
     
     
         2 . The communication apparatus according to  claim 1 , wherein the acquired information includes address information on the first other communication apparatus. 
     
     
         3 . The communication apparatus according to  claim 1 , wherein the acquired information includes a universally unique identifier (UUID) of the first other communication apparatus. 
     
     
         4 . The communication apparatus according to  claim 1 , wherein the acquired information includes a public key. 
     
     
         5 . The communication apparatus according to  claim 4 , wherein a communication parameter for performing wireless communication is shared with the first other communication apparatus by public key cryptography using the public key. 
     
     
         6 . The communication apparatus according to  claim 1 , wherein the acquired information includes a service set identifier (SSID). 
     
     
         7 . The communication apparatus according to  claim 1 , wherein the one or more memories storing instructions, when executed by the one or more processors, causes the communication apparatus to further function as a notification unit configured to notify the first other communication apparatus of a frequency channel to be used for Group Owner Negotiation defined in Wi-Fi Direct®, based on the acquired information. 
     
     
         8 . The communication apparatus according to  claim 1 , wherein the control unit performs control such that the first other communication apparatus performs communication with a second other communication apparatus. 
     
     
         9 . The communication apparatus according to  claim 1 , wherein the control unit notifies a second other communication apparatus of the acquired information to perform control such that the first other communication apparatus performs communication compliant with the Wi-Fi Direct® standard with the second other communication apparatus. 
     
     
         10 . The communication apparatus according to  claim 1 , wherein the one or more memories storing instructions, when executed by the one or more processors, causes the communication apparatus to further function as a user operation receiving unit configured to receive a user operation to set a mode for performing communication compliant with the Wi-Fi Direct® standard with an apparatus corresponding to the image read by the first reading unit, and a user operation to set a mode for causing the apparatus corresponding to the image read by the first reading unit with another apparatus. 
     
     
         11 . The communication apparatus according to  claim 1 , wherein the image is a barcode or a two-dimensional code. 
     
     
         12 . A communication apparatus comprising:
 one or more processors; and   one or more memories storing instructions, when executed by the one or more processors, causing the communication apparatus to function as:   a display unit configured to display an image relating to the communication apparatus; and   a control unit configured to perform direct communication compliant with Wi-Fi Direct® standard based on information acquired from another apparatus that reads the image.   
     
     
         13 . The communication apparatus according to  claim 12 , wherein the acquired information is information on a frequency channel, and communication relating to Wi-Fi Direct® is performed using the frequency channel. 
     
     
         14 . The communication apparatus according to  claim 12 , wherein the acquired information is information on a frequency channel, and a Group Owner Negotiation process defined in Wi-Fi Direct® is executed using the frequency channel. 
     
     
         15 . The communication apparatus according to  claim 12 , wherein the control unit performs the direct communication compliant with Wi-Fi Direct® standard with the another apparatus that reads the image. 
     
     
         16 . The communication apparatus according to  claim 12 , wherein the control unit performs the direct communication compliant with Wi-Fi Direct® standard with a communication apparatus different from the another apparatus that reads the image. 
     
     
         17 . A communication method comprising:
 a first reading step of reading an image relating to a first other communication apparatus;   a first acquisition step of acquiring information on the first other communication apparatus from the image read by the first reading unit; and   a control step of performing direct communication compliant with Wi-Fi Direct® standard with the first other communication apparatus based on the acquired information.   
     
     
         18 . A storage medium storing a program for executing a communication method, the communication method comprising:
 a first reading step of reading an image relating to a first other communication apparatus;   a first acquisition step of acquiring information on the first other communication apparatus from the image read by the first reading unit; and   a control step of performing direct communication compliant with Wi-Fi Direct® standard with the first other communication apparatus based on the acquired information.