A multilayer, heat-shrinkable film generally includes at least one bulk layer and a microlayer section comprising a plurality of microlayers. The computed tomography system has a dynamic mode of operation and a scanning mode of operation. The present invention overcomes the problem that the transmission of the new RFSP index in use can not be finished under the condition that the UE is in an idle state, the UE has no uplink data, and the MME does not receive the notification of the downlink data. Other embodiments are also described and claimed. The guide includes a first discrete alignment indicator and a second discrete alignment indicator for aligning the derailleur.