Method of controlling transmit power and electronic device therefor

1. A method for determining a transmit power level of an electronic device, the method comprising:

activating an emergency mode;

determining a transmit power level based on a predetermined condition including a transmission period of an emergency message and a duration of the emergency mode;

configuring an emergency message; and

transmitting the emergency message, including information associated with a request for rescue, with the determined transmit power level according to the predetermined condition; and

inactivating at least a part of functions of the electronic device according to the activation of the emergency mode.

2. The method of claim 1 , further comprising:

collecting state information obtained by the electronic device with respect to the electronic device or a user of the electronic device.

3. The method of claim 2 ,

wherein the state information comprises at least one of position information of the electronic device, motion information including position change information and acceleration change information of the electronic device, a time point when the emergency mode is activated, or bio-information including a heart rate and blood oxygen saturation of the user, and

wherein the blood oxygen saturation comprises saturation of peripheral oxygen (SpO 2 ).

4. The method of claim 1 , further comprising:

receiving a session generation request from another electronic device which receives the transmitted emergency message; and

generating a session with the other electronic device.

5. The method of claim 4 , further comprising:

transmitting state information to the other electronic device through the generated session.

6. The method of claim 1 , wherein the information associated with the request for rescue comprises a text message or has a message type.

7. The method of claim 1 , wherein the emergency message further comprises information on the electronic device or user information of the electronic device.

8. The method of claim 7 ,

wherein the information on the electronic device comprises at least one of a phone number or identification information, and

wherein the user information of the electronic device comprises at least one of information about a name, a blood type, or a medical history of the user which are previously input.

9. The method of claim 5 , wherein at least some of information included in the transmitted emergency message and the transmitted state information is transmitted to a networked node or a server through the other electronic device.

10. The method of claim 1 , wherein the transmitting of the emergency message is performed in a broadcasting scheme.

11. The method of claim 4 , further comprising:

stopping the transmission of the emergency message or adjusting the transmit power level, according to the reception of the session generation request.

12. The method of claim 1 , wherein the activating of the emergency mode is performed according to a user input for activating the emergency mode, state information, or a message, for notifying an emergency, received from a network node or a server.

13. The method of claim 1 , wherein the determining of the transmit power level is performed based on activation duration of the emergency mode.

14. The method of claim 1 , further comprising:

determining the remaining capacity of a battery of the electronic device,

wherein the determining of the transmit power level is performed based on the determined remaining capacity of the battery.

15. The method of claim 1 , wherein the determining of the transmit power level is performed based on a transmission period of the emergency message of the emergency message.

16. The method of claim 1 , wherein the determining of the transmit power level is performed based on a level of power consumed based on at least one function activated in the electronic device.

17. The method of claim 1 , wherein the emergency message comprises a message type for allowing another electronic device to determine availability of the emergency message according to a received signal strength indication (RSSI) for receiving the emergency message.

18. An electronic device comprising:

at least one processor configured to:

activate an emergency mode,

determine a transmit power level based on a predetermined condition including a transmission period of an emergency message and a duration of the emergency mode, and

configure an emergency message; and

a transceiver configured to transmit the emergency message, including information associated with a request for rescue, with the determined transmit power level according to the predetermined condition,

wherein the at least one processor is further configured to inactivate at least a part of functions of the electronic device according to the activation of the emergency mode.

19. The electronic device of claim 18 , further comprising:

a memory coupled to the at least one processor,

wherein the memory is configured to collect state information obtained by the electronic device with respect to the electronic device or a user of the electronic device.

20. The electronic device of claim 18 ,

wherein the transceiver is further configured to receive a session generation request from another electronic device which receives the transmitted emergency message.

21. At least one non-transitory computer readable storage medium for storing a computer program of instructions configured to be readable by at least one processor for instructing the at least one processor to execute a computer process for performing the method of claim 1 .