According to an alleged insider at SK Telecom, the South Korean carrier is in talks with Apple to release an iPhone with LTE-Advanced data speeds, with it most likely being the “upcoming iPhone 5S.” The carrier official said that SK Telecom approached Apple about the idea, rather than vice versa, but that the company still seems interested and the two are “in the middle of negotiations.” The Korea Times notes that Apple would most likely use a Qualcomm modem to take advantage of the technology.

In theory, LTE-Advanced could double the download speeds of normal LTE thanks to new carrier aggregation technology that allows downloads over multiple radio channels simultaneously. 

Samsung announced a Galaxy S4 capable of LTE-Adanced last month in South Korea, as it’s the only country to have any sort of sizable roll-out of the network. In the United States, carriers aren’t expected to begin LTE-Advanced roll-outs until later this year.

Keep in mind that this is a report and should be taken with a grain of salt.