his interference and those solutions can be used to protect Wi-Fi networks during LAA operation. The basic principle is that the UE indicates IDC interference to the serving eNB which later resolves the issue by configuring the UE with an appropriate DRX cycle, performing a handover of the UE to another cell, or completely releasing one or more SCells [5]. However, it must be noted that the use of LBT in LAA would complicate the UE scheduling because there is no guarantee that a channel can be obtained for the UE at the exact time instant determined by the eNB. The LBT mechanism also limits the duration when the channel can be occupied; therefore the DRX timers should be adjusted to be long enough or the DRX cycles should be short enough to allow time for obtaining the channel access. In LTE, when the UE detects an IDC condition, it would initially try to solve the problem internally. If this fails, the UE can inform the eNB that it is experiencing an IDC condition. Note that the detection of IDC condition in a UE is implementation specific. The UE identi- fies the frequencies that are suffering from IDC interference. If the UE determines that the IDC problem can be solved in a TDM-manner (i.e., by multiplexing the use of the interfering transceivers across time) the UE can indicate a TTI bitmap or DRX cycles that are affected by IDC interference to the eNB. When the eNB receives the indication, it can solve the pro- blems by performing a handover of the UE to other frequencies, removing the problematic cell or configuring the UE with a new DRX configuration which would solve the problem. The existing IDC solutions can be used to support Wi-Fi background scanning during LAA operation. The existing IDC solutions can also be used to indicate interference problems for cases where the UE intends to use Wi-Fi on the same or adjacent carrier to the unlicensed car- rier. If the eNB does not support IDC, the only way for the UE to enable Wi-Fi transmission would be to perform detach and attach procedures, and changing it