Inserting unlicensed services in the 600 MHz band,...
Inserting unlicensed services in the 600 MHz band, without unduly expanding the size of the guard bands and duplex gap, “will impair the adjacent mobile spectrum blocks and effectively destroy the fungibility of the licensed mobile spectrum that the Commission…
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is working so hard to repurpose through the upcoming voluntary incentive auction,” Qualcomm told the FCC Wednesday (http://bit.ly/1gm79kk). The company was responding to a filing by Google and Broadcom, which “only analyzed a single use case” of the adjacent channel out-of-band emissions of the unlicensed device into an LTE user device, Qualcomm said. Google and Broadcom “completely overlooked the impact of blocking,” Qualcomm said. “Inserting unlicensed services in the 600 MHz band would be unwise from both technical and economic perspectives, will create wide areas of interference and impair the value of the adjacent licensed spectrum, and should therefore be avoided.”