Though AT&T (NYSE:T) may be bypassing evolved high speed packet access (or HSPA+), T-Mobile (NYSE:DT) has no intention of skipping the newest evolutionary step in 3G. Delivering a keynote address at 4G World in Chicago today, senior vice president of engineering and operations Neville Ray reiterated T-Mobile’s plans to deploy HSPA+ in 2009 and 2010, as well as revealed that T-Mobile’s first HSPA+ networks are already up and running in Philadelphia.
Using higher-order modulation techniques embedded and new software, HSPA+ dramatically boosts the downlink capacity available over a 3G channel. Most HSPA networks in the US now support between 1.8 Mb/s and 3.6 Mb/s, though both T-Mobile and AT&T are in the process of upgrading those capacities to 7.2 Mb/s. HSPA+, however, would increase bandwidth to 21 Mb/s, six times faster than current networks speeds.