Electronic device and method for determining uplink operation in wireless communication system

An electronic device, comprising:

• a first communication circuit performing first wireless communication using a first frequency band;
• a second communication circuit performing second wireless communication using a second frequency band;
• a processor operatively connected with the first communication circuit and the second communication circuit;
• and
• a memory operatively connected with the processor, wherein
• the memory stores instructions configured to, when executed, enable the processor to:
• perform a communication connection with a first base station using the first communication circuit;
• perform wireless communication in a first operation, which is one of a single uplink operation (SUO) or a dual uplink operation (DUO), with a second base station using the second communication circuit;
• determine whether to switch to a second operation, which is different from the first operation, based on information measured or identified using the first communication circuit or the second communication circuit while performing the first operation;
• and
• transmit a first message indicating to switch from the first operation to the second operation to the first base station based on the determination,
• wherein the first operation is the dual uplink operation (DUO), and the second operation is the single uplink operation (SUO), and
• wherein the instructions are configured to enable the processor to:
• measure a communication status with the second base station based on at least one of a number of retransmissions of the first base station, a reception failure rate of the electronic device, or a bit error rate (BER) of a packet received from the first base station, during the dual uplink operation;
• and
• transmit the first message to the first base station based on a result of the measurement.

A method for determining an uplink operation by an electronic device performing communication with a first base station using a first frequency band and communication with a second base station using a second frequency band in a wireless communication system, the method comprising:

• receiving a first signal from the first base station, using a first communication circuit;
• receiving a second signal from the second base station, using a second communication circuit while performing a communication connection with the first base station;
• selecting one of a single uplink operation (SUO) or a dual uplink operation (DUO), thereby resulting in a selected uplink operation, based on at least one of information obtained or measured in response to receiving the first signal or the second signal or second information previously configured;
• and
• transmitting information regarding the selected uplink operation to the first base station,
• wherein selecting the one of the single uplink operation (SUO) or the dual uplink operation (DUO) comprises:
• determining a center frequency of the first frequency band based on the first signal;
• determining a center frequency of the second frequency band based on the second signal;
• determining whether the center frequency of the first frequency band is a harmonic frequency of the center frequency of the second frequency band;
• and
• selecting the one of the single uplink operation (SUO) or the dual uplink operation (DUO) based on a result of the determination.