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View Full Version : Urgent: Inter-frequency handover preference over inter-rat handover preference CS



makeev
2012-11-09, 04:46 PM
Setting Inter-frequency handover preference over inter-rat handover preference for CS service.

Problem:
We have been starting to introduce F2 layers in our network. We activated inter frequency handovers in RNC between F2 > F1. But from the stats we can see that 100% of time handovers to GSM (inter-RAT) are preferred! No handovers from F2 to F1. From the signalling we can see that during RAB establishment the MSC is sending to RNC service priority" Handover to GSM should be performed" . Does it mean that in our network this parameter sets higher priority for GSM handover over inter-frequency handover? If yes , how to change it in NSN MSC? Witch parameter is responsible for this? Anything else we should know?


Recommendation needed :
Inter - frequency has higher priority than inter system handover . But if inter frequency is not available (or activated) will handover to GSM should happen?


Thanks