Control method for wireless charging

1. A control method for performing wireless charging in a wireless power receiver, the control method comprising:

receiving charging power from a wireless power transmitter;

detecting transition of the wireless power receiver from a Stand Alone (SA) mode to a Non Stand Alone (NSA) mode;

upon detecting the mode transition, generating a message including address information used to re-connect with the wireless power transmitter; and

transmitting the message to the wireless power transmitter.

2. The control method of claim 1 , wherein the message includes a Power Reception Unit (PRU) alert signal.

3. The control method of claim 1 , further comprising:

upon detecting the mode transition, storing the address information used to re-connect with the wireless power transmitter.

4. The control method of claim 1 , further comprising:

upon completion of the mode transition, re-connecting with the wireless power transmitter using the address information.

5. The control method of claim 4 , further comprising:

upon completion of the mode transition, loading a communication scheme stack for communication with the wireless power transmitter from an application processor of the wireless power receiver; and

re-connecting with the wireless power transmitter using the address information, based on the loaded communication scheme stack.

6. The control method of claim 5 , wherein the address information used to re-connect with the wireless power transmitter includes a public address that is different from a random address in the SA mode.

7. The control method of claim 1 , wherein the address information used to re-connect with the wireless power transmitter includes a public address that is the same as a public address in the SA mode.

8. The control method of claim 1 , wherein the address information used to re-connect with the wireless power transmitter includes a random address that is the same as a random address in the SA mode.

9. The control method of claim 1 , wherein the address information used to re-connect with the wireless power transmitter includes a second random address that is different from a first random address in the SA mode.

10. A control method for performing wireless charging in a wireless power transmitter, the control method comprising:

transmitting charging power to a wireless power receiver;

receiving, from the wireless power receiver, a message including address information used to re-connect with the wireless power transmitter; and

upon receiving the message from the wireless power receiver, reconnecting with the wireless power receiver using the address information.

11. The control method of claim 10 , further comprising storing the address information to be used to re-connect with the wireless power transmitter.

12. The control method of claim 10 , wherein the address information used to re-connect with the wireless power transmitter includes a public address that is different from a random address in a Stand Alone (SA) mode of the wireless power receiver.

13. The control method of claim 10 , wherein the address information used to re-connect with the wireless power transmitter includes a public address that is the same as a public address in an SA mode of the wireless power receiver.

14. The control method of claim 10 , wherein the address information used to re-connect with the wireless power transmitter includes a random address that is the same as a random address in an SA mode of the wireless power receiver.

15. The control method of claim 10 , wherein the address information used to re-connect with the wireless power transmitter includes a second random address that is different from a first random address in an SA mode of the wireless power receiver.