Section: 5.1.3.2.4.7 EMM-REGISTERED.NO-CELL-AVAILABLE
Content: E-UTRAN coverage has been lost, PSM is active in the UE or the access stratum is de-activated due to discontinuous coverage (see 3GPP TS 23.401[ General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access ]  [10]). If PSM is active, the UE can deactivate PSM at any time by activating the AS layer when the UE needs to send mobile originated signalling or user data. Otherwise, the UE shall not initiate any EMM procedure except for cell and PLMN reselection.