5.3b Inter-RAT Handover (E-UTRAN to GERAN A/Gb mode)

3GPP43.129Packet-switched handover for GERAN A/Gb modeRelease 16Stage 2TS

5.3b.1 General

This procedure and the corresponding signalling flows are defined in 3GPP TS23.401 [33].

For performing the inter-RAT handover from E-UTRAN to GERAN A/Gb mode the pre-conditions are:

– The UE is in ECM-CONNECTED state (E-UTRAN Active mode);

– The BSS supports PFM (Packet Flow Management) procedures.

5.3b.2 Preparation phase

The detailed signalling flows are specified in 3GPP TS 23.401 [33] in sub-clause 5.5.2.3.2.

5.3b.3 Execution phase

The detailed signalling flows are specified in 3GPP TS 23.401 [33] in sub-clause 5.5.2.3.2.