Method for transmitting signal using short range communication and electronic device thereof

1. A method of operating an electronic device, the method comprising:

establishing a short-range communication link with another electronic device using a first short-range communication network;

generating an emergency signal in response to the short-range communication link with the other electronic device being disconnected, the emergency signal including identification information generated by applying a random number to unique identification information of at least one electronic device of the electronic device or the other electronic device; and

broadcasting the emergency signal using a second short-range communication network.

2. The method of claim 1 , wherein generating the emergency signal comprises:

determining whether the short-range communication link with the other electronic device is disconnected based on a strength of a signal provided from the other electronic device through the first short-range communication network; and

generating the emergency signal in response to the short-range communication link with the other electronic device being disconnected.

3. The method of claim 1 , wherein the emergency signal further includes at least one of a packet identifier (ID), a short-range communication link ID, an emergency situation type, an emergency signal create time, a delivery count, a time to live (TTL), a delivery number, or location information.

4. The method of claim 3 , wherein the short-range communication link ID includes the identification information and the unique identification information includes at least one of a MAC address, a mobile equipment ID (MEID), an International Mobile Equipment Identity (IMEI), or a telephone number.

5. The method of claim 1 , wherein:

the first short-range communication network and the second short-range communication network are identical to or different from each other, and

the first or second short-range communication network includes at least one of infrared wireless communication, Bluetooth communication, Zigbee communication, or wireless LAN communication.

6. A method for receiving an emergency signal in an electronic device, the method comprising:

receiving an emergency signal through a short-range communication network, the emergency signal including identification information generated by applying a random number to unique identification information of at least one electronic device of the electronic device or another electronic device;

determining whether the electronic device is a destination of the emergency signal;

identifying one or more of an emergency situation type or emergency situation location information included in the emergency signal when the electronic device is the destination of the emergency signal; and

displaying one or more of the emergency situation type or the emergency situation location information.

7. The method of claim 6 , wherein the short-range communication network includes at least one of infrared wireless communication, Bluetooth communication, Zigbee communication, or wireless LAN communication.

8. The method of claim 6 , wherein determining whether the electronic device is the destination of the emergency signal comprises determining whether identification information of a short-range communication link included in the emergency signal is included in identification information of at least one short-range communication link stored in the electronic device.

9. The method of claim 6 , further comprising:

determining whether the emergency signal is repeatedly received based on an identifier (ID) of the emergency signal after the emergency signal is received; and

determining whether the electronic device is the destination of the emergency signal when the emergency signal is not repeatedly received.

10. The method of claim 6 , further comprising:

determining whether location information is included in the emergency signal when the electronic device is not the destination of the emergency signal;

adding location information of the electronic device to the emergency signal when the location information is not included in the emergency signal; and

broadcasting the emergency signal using the short-range communication network when the location information is included in the emergency signal.

11. The method of claim 10 , further comprising:

determining whether the emergency signal is valid when the electronic device is not the destination of the emergency signal; and

determining whether the location information is included in the emergency signal when the emergency signal is valid.

12. An electronic device comprising:

at least one short-range communication unit; and

at least one processor configured to

establish a short-range communication link with another electronic device using a first short-range communication network through the short-range communication unit,

generate an emergency signal in response to the short-range communication link with the other electronic device being disconnected, the emergency signal including identification information generated by applying a random number to unique identification information of at least one electronic device of the electronic device or the other electronic device, and

broadcast the emergency signal using a second short-range communication network through the short-range communication unit.

13. The electronic device of claim 12 , wherein the processor is configured to:

determine whether the short-range communication link with the other electronic device is disconnected based on a strength of a signal provided from the other electronic device through the first short-range communication network, and

generate an emergency signal in response to the short-range communication link with the other electronic device being disconnected.

14. The electronic device of claim 12 , wherein the emergency signal further includes at least one of a packet identifier (ID), a short-range communication link ID, an emergency situation type, an emergency signal create time, a delivery count, a time to live (TTL), a delivery number, or location information.

15. The electronic device of claim 14 , wherein the short-range communication link ID includes the identification information the unique identification information includes at least one of a MAC address, a mobile equipment ID (MEID), an International Mobile Equipment Identity (IMEI) or a telephone number.

16. The electronic device of claim 12 , wherein:

the first short-range communication network and the second short-range communication network are identical to or different from each other,

the first or second short-range communication network includes at least one of infrared wireless communication, Bluetooth communication, Zigbee communication, or wireless LAN communication.

17. An electronic device comprising:

a display unit;

at least one short-range communication unit; and

at least one processor configured to:

receive, via the short-range communication unit, an emergency signal through a short-range communication network, the emergency signal including identification information generated by applying a random number to unique identification information of at least one electronic device of the electronic device or another electronic device,

determine whether the electronic device is a destination of the emergency signal,

identify one or more of an emergency situation type or emergency situation location information included in the emergency signal when the electronic device is the destination of the emergency signal, and

instruct the display to display one or more of the emergency situation type or the emergency situation location information.

18. The electronic device of claim 17 , wherein the short-range communication network includes at least one of infrared wireless communication, Bluetooth communication, Zigbee communication, or wireless LAN communication.

19. The electronic device of claim 17 , wherein the processor is configured to determine whether identification information of a short-range communication link included in the emergency signal is included in identification information of at least one short-range communication link stored in the electronic device.

20. The electronic device of claim 17 , wherein the processor is configured to:

determine whether the emergency signal is repeatedly received based on an identifier (ID) of the emergency signal after the emergency signal is received, and

determine whether the electronic device is the destination of the emergency signal when the emergency signal is not repeatedly received.

21. The electronic device of claim 17 , wherein the processor is configured to:

determine whether location information is included in the emergency signal when the electronic device is not the destination of the emergency signal;

add location information of the electronic device to the emergency signal when the location information is not included in the emergency signal; and

broadcasts the emergency signal using the short-range communication unit when the location information is included in the emergency signal.

22. The electronic device of claim 21 , wherein the processor is configured to:

determine whether the emergency signal is valid when the electronic device is not the destination of the emergency signal, and

determine whether the location information is included in the emergency signal when the emergency signal is valid.