Section: 5.3.4B.5 eNodeB Control Plane Relocation Indication procedure
Content: For intra-NB-IoT mobility for UE and MME using Control Plane CIoT EPS Optimisation the eNodeB CP Relocation Indication procedures may be used. The purpose of the eNodeB CP Relocation Indication procedure is to request the MME to authenticate the UE's re-establishment request as described in TS 33.401[ 3GPP System Architecture Evolution (SAE); Security architecture ]  [41], and initiate the establishment of the UE's S1 connection and, if necessary, the S11-U connection after the UE has initiated a RRC Re-establishment procedure in a new eNodeB. More details are defined in TS 36.300[ Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 ]  [5].