FCC to allow Qualcomm and Verizon to test unlicensed LTE-U in the 5GHz part of the Wi-Fi band
On Friday, the FCC gave its approval for further testing of LTE-U, or LTE-Unlicensed. Verizon and Qualcomm are among the big companies interested in testing LTE-U to see if it is something that can be commercialized in the future. Meanwhile, Google and various cable companies are worried that Wi-Fi networks will suffer from overcrowding if LTE-U is approved.
LTE-U uses an LTE signal in an unlicensed portion of the Wi-Fi spectrum (5GHz). Unlike spectrum belonging exclusively to a wireless carrier for which it has a license, LTE-U signals have to compete with other devices sending and receiving signals in the same 5GHz part of the Wi-Fi band. These competing signals include home broadband networks, hotspots offered to customers of certain businesses, and more.
Under the terms of the FCC's ruling, Qualcomm will test LTE-U in two Verizon facilities to make sure that there is no interference with the use of LTE-U. It would seem that even with a positive test, we are still in the first inning of a nine-inning game.
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source: FCC via Re/Code
Verizon and Qualcomm say that it can use the spectrum for LTE signals without interfering with the other users of the airwaves. Google says that such use of the LTE-U spectrum will lead to crowding out of Wi-Fi users in that band. But some experts have called Google's arguments speculative and embarrassing since it did not use any LTE-U equipment to conduct its tests. Instead, it was forced to use a signal generator.
Under the terms of the FCC's ruling, Qualcomm will test LTE-U in two Verizon facilities to make sure that there is no interference with the use of LTE-U. It would seem that even with a positive test, we are still in the first inning of a nine-inning game.
"The Wi-Fi Alliance, working together with advocates of LTE-U, is developing a test plan to evaluate the coexistence of LTE-U with Wi-Fi and other devices operating in the unlicensed spectrum. A draft of the plan is expected to be released early next month. Qualcomm and Verizon have agreed to participate in subsequent laboratory and real world co-existence testing of LTE-U. The Wi-Fi Alliance recently submitted a letter expressing appreciation for Qualcomm’s continued engagement in the Wi-Fi Alliance’s coexistence work and expressing that it had no objection to the grant of an STA for equipment testing at Verizon facilities, with the assurance of continued cooperation in the separate co-existence evaluation and testing process."-FCC
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