T-Mobile has chosen Nokia Siemens Networks and LM Ericsson AB to supply the network equipment for its new wireless broadband network, a project worth $4 billion.

T-Mobile USA is making the announcement on the first day of CTIA Wireless, the U.S. cellphone industry trade show, in New Orleans. T-Mobile is building a ‘4G LTE’ Network like that of Verizon Wireless and AT&T, they hope to have the network go live next year and will cover 75 percent of the 25 largest cities.

It will use, in part, radio frequencies handed over by AT&T after the acquisition of T-Mobile by AT&T fell through earlier this year. AT&T also gave T-Mobile $3 billion in cash that will help to finance these network upgrades. T-Mobile is the fourth-largest wireless carrier in the U.S., with 33.2 million devices on its network. It’s a subsidiary of Deutsche Telekom AG of Germany