Telecom Companies Come Ahead for Testing Unlicensed LTE, Wi-Fi Alliance Cautious

Published By : 11 Feb 2015 | Published By : QYRESEARCH

Ericsson has stated that it is working with Qualcomm and many other telecom carriers to test LTE service in an unlicensed manner in the 5 GHz band. The carriers, which include SK Telecom, T-Mobile US, and Verizon Wireless are at the front line of deploying LTE-Unlicensed (LTE-U) or License Assisted Access (LAA).

However, the Wi-Fi Alliance, the certifying body that endorses Wi-Fi-enabled products and is the representative of the interests of Wi-Fi players, has expressed certain concerns that LAA can harm Wi-Fi users in the stated 5 GHz band.

In a statement, Ericsson said that LAA is now supporting the aggregation of licensed and unlicensed spectrum peak rates up to 450 Mbps, is live in Ericsson labs and is enabling fair sharing of the spectrum between Wi-Fi devices and mobile. 

Ericsson's lab trials of both licensed-unlicensed aggregation and fair sharing of LAA, which made use of 40 MHz on an unlicensed 5 GHz band and 20 MHz on a licensed band, were showed  in cooperation with Qualcomm.

Qualcomm has championed LTE-U since at the November of 2013, before the 3GPP got changed to the term License Assisted Access (LAA). 3GPP chose the LAA name to stress to spectrum regulatory government bodies the point that use of LTE spectrum will be accompanied by a licensed primary carrier in an unlicensed band on a secondary carrier.

Ericsson also stated that its implementation of LAA is on terms of incorporating a fair sharing module in the 5 GHz band so as to also take along traditional Wi-Fi users of the band. It added that the concept of fair sharing follows the rule that Wi-Fi and LAA users will get an equal access to the spectrum.
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