T-Mobile US Promises a 5G Network by 2020

A big goal for wireless company as bigger rivals lay the groundwork for their own upgrades


T-Mobile US Inc. said it would deploy fifth-generation wireless technology nationwide by 2020, setting an aggressive goal for itself as bigger rivals lay the groundwork for their own network upgrades. 

The pledge, issued Tuesday, came as AT&T Inc. and Verizon Communications Inc. are pouring billions of dollars into wireless airwave licenses that might support 5G. The value of one spectrum-holding company, Straight Path Communications Inc., soared last month as the two longtime telecommunication companies launched competing bids to acquire it.

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