LTE Redirection and Protection Timer in Ericsson Networks

4G LTE
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1

Hello, experts.

I have a quick question regarding LTE redirection in Ericsson networks.

When an LTE redirection occurs towards another RAT (2G/3G) but the target RAT is unavailable, a service request is eventually triggered again in LTE after a certain period.

What is the name of the protection timer that governs this behavior?

It appears to be T311/N311. Can you confirm if this is correct?

2

No, that applies to connected mode and is specific to each RAT.

T311 can be set up to 30 seconds.

In fact, RLF timers and constants are defined per QCI.