While mobile network bandwidth is increasing quickly, with some operators supporting 14.4M bits per second (bps) transmission using High-Speed Packet Access (HSPA), devices capable of harnessing the faster speeds remain slow to come to market, IDG News Service reports. For instance, the current top speed for modems is 7.2M bps. According to Björn Ekelund, vice president, product management at Ericsson, the limited support for 14.4M bps in devices is partially due to the fact that not enough operators have upgraded. He adds that carriers may not have enough backhaul capacity—the capacity that feeds base stations—to take full advantage of higher download speeds. Specifically, Ekelund notes that 100M bps in backhaul capacity is necessary to offer 14.4M bps, adding that such high capacity is very expensive. However, IDG notes that "the gap between network capacity and user devices appears to be temporary," as Ericsson in 2009 plans to launch its M570 device platform, which supports up to 42M bps downstream and 11M bps upstream (Ricknäs, IDG News Service/CIO, 5/29/08).