umption of path loss exponent 4.0. LAA cell range is at least double, and the cell area four times larger, compared to Wi-Fi. The larger cell area makes it possible to collect traffic from larger area. An important factor with LAA is the use of licensed band operation with aggregation with the unlicensed band. This makes the 5% cell edge throughout less critical as one may always complement the resulting QoS with the licensed band operation from another frequency band. This allows ensuring sufficient data rate even with cell edge conditions and also getting the most from the capacity with 5 GHz LTE as one is not forced to serve a user in very poor conditions with 5 GHz band but can focus on users with good link budget and then getting higher throughout with less overhead from channel coding. Such a user selection was not implemented in the simulations in the previous section. Outdoor micro cell range Wi-Fi Metres Figure 10.14 Outdoor small cell range at 5 GHz band LTE Small Cell Optimization 3GPP workshop on LTE unlicensed Study Specification until 06/2016 (est) Figure 10.15 Expected 3GPP timeline for the work on LTE for unlicensed band 10.10 Standardization 3GPP Release 13 includes support of the LTE operation on the unlicensed band following the LAA for LTE study and work items finalization. 3GPP started the work with a workshop on LTE unlicensed in June 2014, with the formal study started in September 2014 [4]. The study was completed in June 2015, and Release 13 specifications are expected to be finalized (frozen) by June 2016 as visible in Figure 10.15. The study covered the necessary mechanisms for coexistence as well as evaluation of the performance when operating in the 5 GHz band. After the study was completed, the work item continued to finalize the detailed specification including the necessary band combinations to enable the LTE operation with 5 GHz band aggregated with another licensed frequency band. The latest 3GPP study status can be found from [5]. The assumption with 3GPP work is that LTE is not