Device and method for adaptively controlling path in wireless communication system

A method performed by a software defined (SD)-wide area network (WAN) edge in a wireless communication system, the method comprising:

• generating a plurality of wireless internet protocol (IP) links between the SD-WAN edge and an SD-WAN gateway (GW);
• monitoring wireless quality including
• information on a packet loss and
• information on a throughput of each of the plurality of wireless IP links;
• determining a transmission control policy among a plurality of transmission control policies for adaptive multilink control based on the monitored wireless quality;
• and
• controlling transmission of packets over the plurality of wireless IP links according to the determined transmission control policy.

A device of a software defined (SD)-wide area network (WAN) gateway (GW) in a wireless communication system, the device comprising:

• a transceiver;
• a processor;
• memory storing instructions that, when executed by the processor, cause the device to:
• monitor wireless quality including information on a packet loss and information on a throughput of each of a plurality of wireless IP links,
• determine a transmission control policy among a plurality of transmission control policies for adaptive multilink control based on the monitored wireless quality, and
• control transmission of packets over the plurality of wireless IP links according to the determined transmission control policy,
• wherein the plurality of wireless IP links comprise a plurality of wireless IP links between an SD-WAN edge and the SD-WAN gateway.