METHOD OF AND DEVICE FOR BROADCASTING BLE PACKET, AND METHOD OF AND DEVICE FOR ADJUSTING OPERATION MODE OF APPLICATION PROCESSOR

• US 20150099467A1
• Filed: 07/25/2014
• Published: 04/09/2015
• Est. Priority Date: 10/04/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KANG, Hyuk
• Granted Patent: US 9,681,381 B2
• Time in Patent Office: Days
• US Class Current: 455/41.2
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method of broadcasting a Bluetooth Low Energy (BLE) packet, the method is provided. The method includes generating a random address that includes service identification information of a device, writing the generated random address to a header of the BLE packet, and broadcasting the BLE packet including the header where the generated random address is written, wherein the service identification information of the device includes information to switch an Application Processor (AP) in an external device that receives the BLE packet from a sleep mode to an awake mode.

Claims

1. A method of broadcasting a Bluetooth Low Energy (BLE) packet, the method comprising:

generating a random address that comprises service identification information of a device;

writing the generated random address to a header of the BLE packet; and

broadcasting the BLE packet including the header where the generated random address is written,

wherein the service identification information of the device comprises information that is used to switch an Application Processor (AP) included in an external device that receives the BLE packet from a sleep mode to an awake mode.

2. The method of claim 1, wherein the generated random address comprises a hash value of the service identification information and a random value of a number of bits.

3. The method of claim 1, wherein, when the generated random address matches a random address of another device that is scanned, the generating of the random address is performed again to generate another random address.

4. The method of claim 1, wherein the generated random address further comprises company identification information.

5. The method of claim 1, wherein the generated random address further comprises information about a total number of all packets and identification information about a current packet.

6. The method of claim 5, further comprising:

writing the information about the total number of all of the packets and the identification information about the current packet to a payload of the BLE packet.

7. A non-transitory computer-readable storage medium having stored thereon a computer program, which when executed by a computer, performs the method of claim of 1.

8. A method of adjusting an operation mode of an Application Processor (AP), the method comprising:

receiving from an external device a Bluetooth Low Energy (BLE) packet including a header where a random address that comprises service identification information of the external device is written;

extracting the service identification information of the external device from the header of the BLE packet;

comparing the extracted service identification of the external device to service identification information that is preset with regard to a change in an operation mode of the AP; and

switching the AP from a sleep mode to an awake mode based on a result of the comparing.

9. The method of claim 8, wherein the random address comprises a hash value of the service identification information and a random value of a number of bits.

10. The method of claim 8, wherein the switching of the AP from the sleep mode to the awake mode comprises, when a degree of similarity between the extracted service identification information of the external device and preset service identification information is equal to or higher than a threshold value, switching the AP from the sleep mode to the awake mode.

11. The method of claim 8, further comprising:

setting the service identification information with regard to the change in the operation mode of the AP.

12. The method of claim 8, further comprising:

further extracting company identification information of the external device from the header of the BLE packet; and

comparing the extracted company identification information of the external device to company identification information that is preset with regard to a change in an operation mode of the AP.

13. The method of claim 8, wherein the switching of the AP from the sleep mode to the awake mode comprises:

further extracting information about a total number of all packets and identification information of a current packet;

determining whether all of the packets are received based on the information about the total number of all of the packets and the identification information of the current packet; and

when all of the packets are received, switching the AP from the sleep mode to the awake mode.

14. The method of claim 13, wherein the extracting of the information about the total number of all of the packets and the identification information of the current packet comprises extracting the information about the total number of all of the packets and the identification information of the current packet from the header or a payload of the BLE packet.

15. A non-transitory computer-readable storage medium having stored thereon a computer program, which when executed by a computer, performs the method of claim 8.

16. A device for broadcasting a Bluetooth Low Energy (BLE) packet, the device comprising:

a controller configured to generate a random address that comprises service identification information of the device, and write the generated random address to a header of the BLE packet; and

a BLE communication unit configured to broadcast the BLE packet including the header where the generated random address is written,

wherein the service identification information of the device comprises information that is used to switch an Application Processor (AP) included in an external device that receives the BLE packet from a sleep mode to an awake mode.

17. The device of claim 16, wherein, when the generated random address matches a random address of another device that is scanned, the controller generates another random address.

18. The device of claim 16, wherein the generated random address further comprises company identification information.

19. The device of claim 16, wherein the generated random address further comprises information about a total number of all packets and identification information about a current packet.

20. The device of claim 16, wherein the controller writes information about a total number of all packets and identification information about a current packet to a payload of the BLE packet.

21. A device for adjusting an operation mode of an Application Processor (AP), the device comprising:

a Bluetooth Low Energy (BLE) communication unit configured to receive from an external device a BLE packet that comprises a header to which a random address is written, the random address comprising service identification information of service identification information of the external device;

a filtering unit configured to extract the service identification information of the external device from the header of the BLE packet, and, based on a result of comparing the extracted service identification of the external device to service identification information that is preset with regard to a change in an operation mode of an AP, transmit an awake mode switching command to the AP; and

an AP configured to switch from a sleep mode to an awake mode based on the awake mode switching command that is received from the filtering unit.

22. The device of claim 21, wherein the filtering unit further extracts company identification information of the external device from the header of the BLE packet, and compares the extracted company identification information of the external device to company identification information that is preset with regard to a change in an operation mode of the AP.

23. The device of claim 21, wherein the filtering unit further extracts information about a total number of all packets and identification information of a current packet, determines whether all of the packets are received based on the information about the total number of all of the packets and the identification information of the current packet, and as a result of the determining, when all of the packets are received, the AP switches from the sleep mode to the awake mode.