T-Mobile USA has unveiled plans to upgrade its 3G networks with HSPA 7.2 and HSPA+ technology, FierceWireless reports, citing company CTO, Cole Brodman. The carrier will reportedly begin deploying HSPA 7.2, which provides theoretical downlink speeds of 7.2Mbps, across its W-CDMA networks by year-end. Mr Brodman was also cited as saying that he expects T-Mobile to begin deploying HSPA+ with theoretical downlink speeds of 21Mbps sometime in 2010. According to TeleGeography’s GlobalComms database, T-Mobile launched its first 3G networks in May 2008, and as at the end of August 2009 the infrastructure covered 176 cities and around 121 million people. The company has said it expects to cover 200 million by year-end, adding an additional 100 cities to its coverage.