How to prevent UE from reselecting to specific detected neighbouring cells?

Question

This is regarding the scenario where GTP-U peer got restarted and again came to service. However,the other GTP-U entity could not detect the restart of peer GTP-U entiity as it keep receving Echo Response. I had read the Restart Counter/(Recovery IE), is used to detect such restarts. But, as per spec 29.281, Restart counter is no longer use and ignored. In such case how such quick GTP-U restarts are detected by peer GTP-U? Is it so that in this case no recovery action needed for User Plane ?

I do see that we have Private Extension IE but again that is vendor specific so that can not be used for interconnection with devices with other Vendors.

Answer 1

To prevent UE from reselecting to specific detected neighbouring cells, We can Apply Hysterisis to that cell so that Neighbor cell will Appear Poor while UE Calculate the level of Neighbor Cell.
2nd thing we can change Treselection timer to delay reselection.

Comments

Ravindra ,for 2nd point will u give me some information ?

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The Treselection parameter defines the cell reselection timer value. It allows averaging of the target cell quality before cell reselection is performed.