Abstract: Disclosed is a 5G or a pre-5G communication system to support a higher data transmission rate than a system after a 4G communication system such as LTE. A wireless communication method by a terminal according to one embodiment may include the operations of: identifying information indicating a type of each of multiple wireless networks, a strength of each of signals received from the multiple wireless networks, respectively, and power consumption of the terminal; selecting one wireless network among the multiple wireless networks on the basis of the information and the strength of each of current signals received from the multiple wireless networks, respectively; and communicating with the selected wireless network.

Abstract: A method for controlling an upload size of data by a device is provided. The method includes determining whether to change a size of data to be uploaded based on a policy of an upload target server, upon determining to change the size of the data to be uploaded, determining an initial transfer size of the data, and uploading a part of the data corresponding to the determined initial transfer size, updating an upload result of the partial data in an upload history, and determining a next transfer size for the data depending on a reception result of the part of the data from the upload target server for a period obtained from the policy.

Abstract: Disclosed is a 5G or a pre-5G communication system to support a higher data transmission rate than a system after a 4G communication system such as LTE. A wireless communication method by a terminal according to one embodiment may include the operations of: identifying information indicating a type of each of multiple wireless networks, a strength of each of signals received from the multiple wireless networks, respectively, and power consumption of the terminal; selecting one wireless network among the multiple wireless networks on the basis of the information and the strength of each of current signals received from the multiple wireless networks, respectively; and communicating with the selected wireless network.

Abstract: Disclosed is a 5G or a pre-5G communication system to support a higher data transmission rate than a system after a 4G communication system such as LTE. A wireless communication method by a terminal according to one embodiment may include the operations of: identifying information indicating a type of each of multiple wireless networks, a strength of each of signals received from the multiple wireless networks, respectively, and power consumption of the terminal; selecting one wireless network among the multiple wireless networks on the basis of the information and the strength of each of current signals received from the multiple wireless networks, respectively; and communicating with the selected wireless network.

Abstract: Disclosed is a 5G or a pre-5G communication system to support a higher data transmission rate than a system after a 4G communication system such as LTE. A wireless communication method by a terminal according to one embodiment may include the operations of: identifying information indicating a type of each of multiple wireless networks, a strength of each of signals received from the multiple wireless networks, respectively, and power consumption of the terminal; selecting one wireless network among the multiple wireless networks on the basis of the information and the strength of each of current signals received from the multiple wireless networks, respectively; and communicating with the selected wireless network.

Abstract: A method for controlling an upload size of data by a device is provided. The method includes determining whether to change a size of data to be uploaded based on a policy of an upload target server, upon determining to change the size of the data to be uploaded, determining an initial transfer size of the data, and uploading a part of the data corresponding to the determined initial transfer size, updating an upload result of the partial data in an upload history, and determining a next transfer size for the data depending on a reception result of the part of the data from the upload target server for a period obtained from the policy.