In the application of TDD and eIMTA to LTE in the unlicensed spectrum, various alterations may be needed to compensate for interference from and the behavior of RATs operating in this range of frequencies. Various UE and base station methods are presented, including modified TDD configurations and UE behaviors to advance operations on unlicensed spectrum. A method, an apparatus, and a computer-readable medium for wireless communication are provided whereby configuration information is conveyed to a UE for communicating on a carrier in the unlicensed spectrum. The configuration information indicates a subframe allocation for at least one frame on the unlicensed carrier. Other aspects are directed to the detection of the transmission, communication of new and modified eIMTA configuration transmissions, and mechanism and behaviors which address unreceived configuration information.