An electronic device supporting a low power wide area network, LPWAN, the electronic device comprising: a communication circuit configured to communicate with a base station; a processor electrically connected with the communication circuit; and a memory electrically connected with the processor, wherein the processor is configured to: establish a radio link with the base station by using the communication circuit; transmit, to the base station, a first message requesting random access by using the communication circuit characterized in that the processor is further configured to: receive a second message replying to the first message from the base station by using the communication circuit, when a timer is running for uplink transmission timing; based on that a network connected with the electronic device is a NB IoT, Narrow Band Internet of Things, based on specifications regulated by the 3GPP, 3 rd Generation Partnership Project, update an existing timing advance value for the uplink transmission timing, based on a timing advance value included in the second message; or based on that the network connected with the electronic device is not a NB IoT, ignore the timing advance value included in the second message. a communication circuit configured to communicate with a base station; a processor electrically connected with the communication circuit; and a memory electrically connected with the processor, wherein the processor is configured to: establish a radio link with the base station by using the communication circuit; transmit, to the base station, a first message requesting random access by using the communication circuit characterized in that the processor is further configured to: receive a second message replying to the first message from the base station by using the communication circuit, when a timer is running for uplink transmission timing; based on that a network connected with the electronic device is a NB IoT, Narrow Band Internet of Things, based on specifications regulated by the 3GPP, 3 rd Generation Partnership Project, update an existing timing advance value for the uplink transmission timing, based on a timing advance value included in the second message; or based on that the network connected with the electronic device is not a NB IoT, ignore the timing advance value included in the second message. establish a radio link with the base station by using the communication circuit; transmit, to the base station, a first message requesting random access by using the communication circuit characterized in that the processor is further configured to: receive a second message replying to the first message from the base station by using the communication circuit, when a timer is running for uplink transmission timing; based on that a network connected with the electronic device is a NB IoT, Narrow Band Internet of Things, based on specifications regulated by the 3GPP, 3 rd Generation Partnership Project, update an existing timing advance value for the uplink transmission timing, based on a timing advance value included in the second message; or based on that the network connected with the electronic device is not a NB IoT, ignore the timing advance value included in the second message. receive a second message replying to the first message from the base station by using the communication circuit, when a timer is running for uplink transmission timing; based on that a network connected with the electronic device is a NB IoT, Narrow Band Internet of Things, based on specifications regulated by the 3GPP, 3 rd Generation Partnership Project, update an existing timing advance value for the uplink transmission timing, based on a timing advance value included in the second message; or based on that the network connected with the electronic device is not a NB IoT, ignore the timing advance value included in the second message. <EOS>