Wireless communication device, wireless communication system, wireless communication method, and program

• US 9,674,716 B2
• Filed: 05/16/2014
• Issued: 06/06/2017
• Est. Priority Date: 04/22/2009
• Status: Active Grant

• Current Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Itoh, Katsutoshi, Suzuki, Hideyuki, Naito, Masahiko
• Primary Examiner(s): LI, GUANG W
• Application Number:
  US14/280,107
• Publication Number:
  US 20140248866A1
• Time in Patent Office: 1,117 Days
• Field of Search: 370338
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 84/20 Master-slave selection or change arrangements

Abstract

There is provided a wireless communication device including a control-message creation/transmission-instruction unit which sends notification information via a wireless communication network and also sends response information in the case of receiving notification information sent from another device, a reception/interpretation processing unit which receives, from another device which has received the notification information of the wireless communication device, response information of such other device and also receives the notification information sent from such other device, and an operation mode determination unit which determines, based on operation mode determination information included in the notification information of such other device or the response information of such other device, that the wireless communication device is caused to operate as one of a master device and a slave device.

Claims

1. A wireless communication device comprising:

circuitry configured to;

send request information of the wireless communication device via a wireless communication network;

receive, from another device which has received the request information of the wireless communication device, response information of the other device with respect to the request information of the wireless communication device;

receive request information of the other device;

set a communication frequency of the wireless communication device based on the response information of the other device or the request information of the other device;

send response information of the wireless communication device with respect to the request information of the other device; and

determine, based on operation mode determination information indicating a priority index of the other device and included in the request information of the other device or the response information of the other device, that the wireless communication device is caused to operate as one of a master device or a slave device.

2. The wireless communication device according to claim 1, wherein

the request information is a periodic message sent from the wireless communication device or the other device when operating as a master device or a message repeatedly sent within a fixed time period.

3. The wireless communication device according to claim 1, wherein

the request information is communication request information sent from the wireless communication device or the other device when operating as a slave device, and

the response information is response information sent in response to the request information from the wireless communication device or the other device when operating as a master device.

4. The wireless communication device according to claim 1, wherein

the circuitry is further configured to switch a communication frequency at the time of sending the request information of the wireless communication device and a communication frequency at the time of waiting for the response information of the other device.

5. The wireless communication device according to claim 1, wherein the circuitry is further configured to:

compare the operation mode determination information received from the other device with corresponding information of the wireless communication devices; and

determine, based on a result of the comparison, that the wireless communication device is caused to operate as one of a master device and a slave device.

6. The wireless communication device according to claim 1, wherein

the circuitry is configured to cause the wireless communication device to operate in a manner that an operation switches between a master device operation and a slave device operation when the wireless communication device is connected to a plurality of other devices via a wireless communication network.

7. The wireless communication device according to claim 1, wherein

the request information of the wireless communication device includes an instruction for causing a second other device, which is already connected as a slave device to the wireless communication device, to operate as a slave device to a first other device when the wireless communication device operates as a slave device to the first other device which is newly connected thereto via a wireless communication network.

8. The wireless communication device according to claim 1, further comprising:

a memory configured to function as a work area for the data processing performed by the circuitry and to function as a storage medium for storing data.

9. The wireless communication device according to claim 1, further comprising:

an antenna configured to receive a signal including the response information.

10. The wireless communication device according to claim 9, wherein

the circuitry is configured to down-convert the signal including the response information received by the antenna.

11. The wireless communication device according to claim 1, wherein

the wireless communication device is caused to operate as a master device in a case that a priority index of the wireless communication device is lower than the priority index of the other device.

12. The wireless communication device according to claim 1, wherein

the wireless communication device is caused to operate as a slave device in a case that a priority index of the wireless communication device is lower than the priority index of the other device.

13. A wireless communication system comprising:

a first wireless communication device including first circuitry configured to;

send request information of the first wireless communication device via a wireless communication network;

receive, from a second wireless communication device which has received the request information of the first wireless communication device, response information of the second wireless communication device with respect to the request information of the first wireless communication device;

receive request information of the second wireless communication device;

send response information of the first wireless communication device with respect to the request information of the second wireless communication device; and

determine, based on operation mode determination information included in the request information of the second wireless communication device or the response information of the second wireless communication device, that the first wireless communication device is caused to operate as one of a master device or a slave device; and

the second wireless communication device including second circuitry configured to;

send the request information of the second wireless communication device via a wireless communication network;

receive, from the first wireless communication device, the response information of the first wireless communication device with respect to the request information of the second wireless communication device;

receive the request information of the first wireless communication device;

set a communication frequency of the second wireless communication device based on the request information of the first wireless communication device or the response information of the first wireless communication device;

send the response information of the second wireless communication device with respect to the request information of the first wireless communication device; and

determine, based on operation mode determination information indicating a priority index of the first wireless communication device and included in the request information of the first wireless communication device or the response information of the first wireless communication device, that the second wireless communication device is caused to operate as one of a master device or a slave device.

14. A wireless communication method comprising:

sending request information of a wireless communication device via a wireless communication network;

receiving, from another device which has received the request information of the wireless communication device, response information of the other device with respect to the request information of the wireless communication device;

receiving request information of the other device;

setting a communication frequency of the wireless communication device based on the response information of the other device or the request information of the other device;

sending response information of the wireless communication device with respect to the request information of the other device, and

determining, based on operation mode determination information indicating a priority index of the other device and included in the request information of the other device or the response information of the other device, that the wireless communication device is caused to operate as one of a master device or a slave device.

15. The wireless communication method according to claim 14, wherein

the determining includes determining that the wireless communication device is caused to operate as a master device in a case that a priority index of the wireless communication device is lower than the priority index of the other device.

16. The wireless communication method according to claim 14, wherein

the determining includes determining that the wireless communication device is caused to operate as a slave device in a case that a priority index of the wireless communication device is lower than the priority index of the other device.

17. A non-transitory computer-readable medium including a program, which when executed by a wireless communication device, causes the wireless communication device to:

send request information of the wireless communication device via a wireless communication network,

receive, from another device which has received the request information of the wireless communication device, response information of the other device with respect to the request information of the wireless communication device,

receive request information of the other device,

set a communication frequency of the wireless communication device based on the request information of the other device or the response information of the other device,

send response information of the wireless communication device with respect to the request information of the other device, and

determine, based on operation mode determination information indicating a priority index of the other device and included in the request information of the other device or the response information of the other device, that the wireless communication device is caused to operate as one of a master device or a slave device.

18. The non-transitory computer-readable medium according to claim 17, wherein

the determining includes determining that the wireless communication device is caused to operate as a master device in a case that a priority index of the wireless communication device is lower than the priority index of the other device.

19. The non-transitory computer-readable medium according to claim 17, wherein

the determining includes determining that the wireless communication device is caused to operate as a slave device in a case that a priority index of the wireless communication device is lower than the priority index of the other device.