One question related to ciphering.
Can using ciphering Algorithm Null somehow impact negative on UEs or it is not important?
I don’t think you can use null ciphering other than for emergency calls.
Yes, but I see it in the rrcConnReconfig and it looks strange to me also.
And we have issue with esm bearer.
I think it’s not allowed by specs.
In 3gpp spec it looks null integrity protection cannot be used but I didn’t find nothing for ciphering null value.
Null ciphering can be used, but not suggested.
Null integrity is not allowed.
Thank You .
Let me correct my statement: it shouldn’t be used (though it can be).
And one more question: If keyToUse is set to secondary should I expect to see sk-counter also in rrcConnReconfig msg?
It’s depend on service provider choice they can be ignore ciphering but integration is must.