LTE-U, Wi-Fi Can Coexist Based on New Test Results, Ericsson Tells FCC
Ericsson said tests it concluded in August on LTE-unlicensed and Wi-Fi showed the two services can safely coexist. Ericsson filed the results at the FCC in docket 15-105. “Results of our testing of channel selection, reselection and co-channel operation demonstrate…
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that LTE-U will fairly coexist with Wi-Fi,” the company said. “The channel selection and reselection tests demonstrate that LTE-U channel selection is an extremely effective coexistence procedure, even in extremely dense deployments. The co-channel testing demonstrates that LTE-U has no more impact on a Wi-Fi end user’s experience than another Wi-Fi Network.” In the report itself, Ericsson said LTE-U, using a small amount of 5 GHz spectrum, can provide up to a 135 Mbps speed increase over LTE. LTE-U is likely to be especially helpful in supporting indoor data traffic, the report said. “LTE on the unlicensed band serves as a secondary carrier and provides bursts in the data speed to increase the delivery speed of the data payload.” The LTE-U secondary cell serves only downlink traffic, the report said: “LTE-U has been designed to achieve fair sharing between LTE and Wi-Fi and other technologies within the 5 GHz band, to benefit all users. The goal is to impact Wi-Fi end users experience no more than an additional Wi-Fi network would do on the same channel.” The FCC is pushing Wi-Fi and LTE-U advocates to work together on coexistence testing (see 1608040060).