 operated as stand-alone system on the unlicensed band but will be used in conjunction with a PCell which is operated always in the licensed band. Once the basis is specified with the Release 13 work item [6], then 3GPP will define the necessary bands and band combinations to be used with 5 GHz band, which can be done as Release independent on top of Release 13. Release 14 will then finalize support for the uplink direction, enabling full TDD operation in the 5 GHz band. Dual-connectivity is also foreseen to be addressed after Release 13. There is also related work on-going to cover using more than five carriers in total with LTE carrier aggregation. Enabling up to 10 carriers or more would then enable similar to Wi-Fi, to aggregate up to eight carriers, that is, 160 MHz on 5 GHz band together with one or two carriers on the licensed band. 3GPP on-going work item for defining the support of up to 32 aggregated carriers is also scheduled to be finalized for Release 13 [7]. One further possibility is standalone LTE deployment on unlicensed band without any anchor carrier on the licensed band. This has not been addressed SO far in 3GPP. 10.11 Conclusions The strong momentum with LTE evolution continues in Release 13. One of the new technology components in Release 13 is the deployment of LTE in 5 GHz unlicensed band. LAA with LTE will allow coexistence with Wi-Fi without any specific coordination and will meet all the regulatory requirements for 5 GHz unlicensed band operation. This is an important feature of LAA which allows deploying in the same markets such as shopping malls and corporate environment as Wi-Fi networks. The interference impact to a Wi-Fi network from an LTE network is similar to the interference impact from another Wi-Fi network. Still such an LTE network can reach higher capacity than a Wi-Fi network. Thus installing unlicensed band- capable LTE eNodeB to be operated in aggregation with an existing LTE eNodeB in licensed LTE Unlicensed band is not expected to require any more site permissions fro