said by BiggA:
How are they going to use this unpaired spectrum to roll out LTE? They're saying it will help with the downlink, but what are they going to do for the uplink?
Yes, the former Qualcomm Lower 700 MHz D/E block 6 MHz licenses are unpaired spectrum. AT&T will not be able to utilize that spectrum until LTE-Advanced supplemental downlink carrier aggregation technology becomes a commercial reality. Supplemental downlink will aggregate a 5 MHz downlink carrier in D/E block spectrum with a preexisting 5 MHz x 5 MHz (or 10 MHz x 10 MHz) uplink and downlink in traditional paired spectrum (e.g. Lower 700 MHz A/B/C block, Cellular A/B block, etc.).