Now that the 5G standards are complete (both standalone and the kind that piggybacks on LTE), American carriers are rushing to pump up the hype ahead of initial trials and deployments. For T-Mobile, that means announcing a new $3.5 billion investment in 5G with Swedish supplier Ericsson a mere week and a half after announcing a deal of the same dollar amount with Finland-based Nokia. In total, that's a whopping $7 billion. 

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