Section: 5.5.2.1 E-UTRAN to UTRAN Iu mode Inter RAT handover 5.5.2.1.1 General
Content: Pre-conditions: - The UE is in ECM-CONNECTED state (E-UTRAN mode). If emergency bearer services are ongoing for an UE, handover to the target RNC is performed independent of the Handover Restriction List. The SGSN checks, as part of the Routing Area Update in the execution phase, if the handover is to a restricted area and if so SGSN deactivate the non-emergency PDP context as specified in TS 23.060[ General Packet Radio Service (GPRS); Service description; Stage 2 ]  [7], clause 9.2.4.2. If emergency bearer services are ongoing for the UE, the source MME evaluates the handover to the target CSG cell independent of the UE's CSG subscription. If the handover is to a CSG cell that the UE is not subscribed, the target RNC will only accept the emergency bearers and the target SGSN deactivates the non-emergency PDP contexts that were not accepted by the target RNC as specified in TS 23.060[ General Packet Radio Service (GPRS); Service description; Stage 2 ]  [7], clause 9.2.4.2.