Wi-Fi Alliance Says TV Band Critical to Future of Unlicensed Spectrum
The Wi-Fi Alliance asked the FCC to “maximize” use of the TV spectrum for unlicensed operations as it finalizes rules for the TV incentive auction. The alliance said in a filing the FCC’s record demonstrates broad recognition of the importance…
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of unlicensed spectrum. “Overly conservative requests to protect particular services, beyond what is necessary to reasonably guard against harmful interference, should not defeat the opportunity to create additional critical capacity for unlicensed applications,” the group said. There's disagreement about the protection licensed wireless services require from adjacent unlicensed devices, the group said. “On one side, V-COMM suggests that an out-of-band emission limit of -89 dBm/100 kHz into 600 MHz downlink spectrum and a 5 megahertz buffer is required for white space devices operating at the permitted 40 mW power level,” the alliance said. “These limitations would effectively eliminate the ability for white space devices to use the guard bands and duplex gap.” The filing was posted by the FCC Wednesday in docket 12-268. Also in the docket, representatives of wireless mic maker Shure said the company “reaffirmed” support for the FCC’s proposal to authorize wireless microphone operations in the 600 MHz duplex gap and guard bands, in a meeting with FCC officials. “Shure reemphasized that the duplex gap and guard bands would provide urgently needed spectrum for wireless microphone users given the looming repurposing of the broader 600 MHz Band,” Shure said.