Electronic device for data communication in wireless communication system and method for operating same

1 . An electronic device comprising:

communication circuitry;

at least one processor including processing circuitry; and

memory storing instructions,

wherein the instructions, when executed by the at least one processor, individually and/or collectively, cause the electronic device to:

establish a protocol data unit (PDU) session;

perform data communication through a first data path corresponding to & Internet protocol (IP) address 1 allocated to the PDU session by a network;

identify IP address 2 allocated to the PDU session by the network, the IP address 2 being different from the IP address 1 ;

identify a round trip time 1 (RTT 1 ) in which the IP address 1 is used and an RTT 2 in which the IP address 2 is used, in a state in which the IP address 1 and the IP address 2 are allocated to the PDU session;

switch from the first data path to a second data path corresponding to the IP address 2 , based on a difference between the RTT 2 and the RTT 1 being equal to or less than a designated reference value, prior to expiration of a valid lifetime of the IP address 1 ;

reduce, in response to switching to the second data path, the valid lifetime of the IP address 1 using a designated interval; and

release the IP address 1 based on expiration of the reduced valid lifetime of the IP address 1 .

2 . The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, individually and/or collectively, cause the electronic device to:

transmit a message related to an access request to the network through the communication circuit; and

establish, based on information related to session and service continuity (SSC) mode 3 included in information related to PDU establishment acceptance received from the network through the communication circuit, the PDU session being configured in the SSC mode 3 .

3 . The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, individually and/or collectively, cause the electronic device to identify the RTT 1 in which the IP address 1 is used and the RTT 2 in which the IP address 2 is used through a server related to a reference application program among multiple application programs currently executed in the electronic device.

4 . The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, individually and/or collectively, cause the electronic device to identify the RTT 1 in which the IP address 1 is used and the RTT 2 in which the IP address 2 is used through at least one server related to each of multiple application programs currently executed in the electronic device.

5 . The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, individually and/or collectively, cause the electronic device to:

identify a server related to an application program to be accessed through the IP address 2 through domain name system (DNS) pre-resolving, based on identification of the IP address 2 ; and

identify the RTT 2 in which the IP address 2 is used through the server related to the application program to be accessed through the IP address 2 .

6 . The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, individually and/or collectively, cause the electronic device to maintain the first data path corresponding to the IP address 1 based on the difference between the RTT 2 in which the IP address 2 is used and the RTT 1 in which the IP address 1 is used exceeding the designated reference value.

7 . The electronic device of claim 6 , wherein the instructions, when executed by the at least one processor, individually and/or collectively, cause the electronic device to:

while maintaining the first data path corresponding to the IP address 1 , repeatedly determine, based on a difference between the RTT 2 in which the IP address 2 is used and the RTT 1 in which the IP address 1 is used, whether to switch to the second data path corresponding to the IP address 2 the valid lifetime of the IP address 1 expires.

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

establishing a protocol data unit (PDU) session;

performing data communication through a first data path corresponding to Internet protocol (IP) address 1 allocated to the PDU session by a network;

identifying IP address 2 allocated to the PDU session by the network, the IP address 2 being different from the IP address 1 ;

identifying a round trip time 1 (RTT 1 ) in which the IP address 1 is used and an RTT 2 in which the IP address 2 is used, in a state in which the IP address 1 and the IP address 2 are allocated to the PDU session;

switching from the first data path to a second data path corresponding to the IP address 2 , based on a difference between the RTT 2 and the RTT 1 being equal to or less than a designated reference value, prior to expiration of a valid lifetime of the IP address 1 ;

reducing, in response to switching to the second data path, the valid lifetime of the IP address 1 using a designated interval; and

releasing the IP address 1 based on expiration of the reduced valid lifetime of the IP address 1 .

9 . The method of claim 8 , wherein the establishing the PDU session comprises:

transmitting a message related to an access request to a network; and

establishing, based on information related to session and service continuity (SSC) mode 3 included in information related to PDU establishment acceptance received from the network, the PDU session configured in the SSC mode 3 .

10 . The method of claim 8 , wherein the identifying of an RTT comprises identifying the RTT 1 in which the IP address 1 is used and the RTT 2 in which the IP address 2 is used through a server related to a reference application program among multiple application programs currently executed in the electronic device.

11 . The method of claim 8 , wherein the identifying of an RTT comprises identifying the RTT 1 in which the IP address 1 is used and the RTT 2 in which the IP address 2 is used through at least one server related to each of multiple application programs currently executed in the electronic device.

12 . The method of claim 8 , wherein the identifying of an RTT comprises:

identifying a server related to an application program to be accessed through the IP address 2 through domain name system (DNS) pre-resolving, based on identification of the IP address 2 ; and

identifying the RTT 2 in which the IP address 2 is used through the server related to the application program to be accessed through the IP address 2 .

13 . The method of claim 8 , further comprising:

maintaining the first data path corresponding to the IP address 1 of 0 based on the difference between the RTT 2 in which the IP address 2 is used and the RTT 1 in which the IP address 1 is used exceeding the designated reference value.

14 . The method of claim 13 , further comprising:

while maintaining the first data path corresponding to the IP address 1 , repeatedly determining, based on a difference between the RTT 2 in which the IP address 2 is used and the RTT 1 in which the IP address 1 is used, whether to switch to the second data path corresponding to the IP address 2 , until the valid lifetime of the IP address 1 expires.