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

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

5.3a.1 General

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

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

– The MS is in packet transfer mode (GERAN A/Gb mode);

– The MS has at least one PDP Context established;

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

5.3a.2 Preparation phase

The detailed signalling flows are specified in 3GPP TS 23.401 [33] in sub-clause 5.5.2.4.2.

5.3a.3 Execution phase

The detailed signalling flows are specified in 3GPP TS 23.401 [33] in sub-clause 5.5.2.4.3.